From d2fab0170a05e5ad093fbaeec9fede42e324d7a5 Mon Sep 17 00:00:00 2001
From: ric <s1094610@studenti.univpm.it>
Date: Sun, 28 Nov 2021 18:56:16 +0100
Subject: [PATCH] backend stuff
---
backend/models/userModel.js | 33 +
backend/node_modules/.bin/color-support | 1 +
backend/node_modules/.bin/detect-libc | 1 +
backend/node_modules/.bin/mkdirp | 1 +
backend/node_modules/.bin/node-pre-gyp | 1 +
backend/node_modules/.bin/rimraf | 1 +
.../@mapbox/node-pre-gyp/CHANGELOG.md | 497 ++
.../node_modules/@mapbox/node-pre-gyp/LICENSE | 27 +
.../@mapbox/node-pre-gyp/README.md | 742 +++
.../@mapbox/node-pre-gyp/bin/node-pre-gyp | 4 +
.../@mapbox/node-pre-gyp/bin/node-pre-gyp.cmd | 2 +
.../@mapbox/node-pre-gyp/contributing.md | 10 +
.../@mapbox/node-pre-gyp/lib/build.js | 51 +
.../@mapbox/node-pre-gyp/lib/clean.js | 31 +
.../@mapbox/node-pre-gyp/lib/configure.js | 52 +
.../@mapbox/node-pre-gyp/lib/info.js | 38 +
.../@mapbox/node-pre-gyp/lib/install.js | 235 +
.../@mapbox/node-pre-gyp/lib/main.js | 125 +
.../@mapbox/node-pre-gyp/lib/node-pre-gyp.js | 309 +
.../@mapbox/node-pre-gyp/lib/package.js | 73 +
.../@mapbox/node-pre-gyp/lib/pre-binding.js | 34 +
.../@mapbox/node-pre-gyp/lib/publish.js | 81 +
.../@mapbox/node-pre-gyp/lib/rebuild.js | 20 +
.../@mapbox/node-pre-gyp/lib/reinstall.js | 19 +
.../@mapbox/node-pre-gyp/lib/reveal.js | 32 +
.../@mapbox/node-pre-gyp/lib/testbinary.js | 79 +
.../@mapbox/node-pre-gyp/lib/testpackage.js | 53 +
.../@mapbox/node-pre-gyp/lib/unpublish.js | 41 +
.../node-pre-gyp/lib/util/abi_crosswalk.json | 2602 ++++++++
.../@mapbox/node-pre-gyp/lib/util/compile.js | 93 +
.../node-pre-gyp/lib/util/handle_gyp_opts.js | 102 +
.../@mapbox/node-pre-gyp/lib/util/napi.js | 205 +
.../lib/util/nw-pre-gyp/index.html | 26 +
.../lib/util/nw-pre-gyp/package.json | 9 +
.../@mapbox/node-pre-gyp/lib/util/s3_setup.js | 163 +
.../node-pre-gyp/lib/util/versioning.js | 335 +
.../node-pre-gyp/node_modules/.bin/nopt | 1 +
.../node-pre-gyp/node_modules/.bin/semver | 1 +
.../node_modules/nopt/CHANGELOG.md | 58 +
.../node-pre-gyp/node_modules/nopt/LICENSE | 15 +
.../node-pre-gyp/node_modules/nopt/README.md | 213 +
.../node_modules/nopt/bin/nopt.js | 54 +
.../node_modules/nopt/lib/nopt.js | 441 ++
.../node_modules/nopt/package.json | 67 +
.../node_modules/semver/CHANGELOG.md | 111 +
.../node-pre-gyp/node_modules/semver/LICENSE | 15 +
.../node_modules/semver/README.md | 566 ++
.../node_modules/semver/bin/semver.js | 173 +
.../node_modules/semver/classes/comparator.js | 135 +
.../node_modules/semver/classes/index.js | 5 +
.../node_modules/semver/classes/range.js | 510 ++
.../node_modules/semver/classes/semver.js | 287 +
.../node_modules/semver/functions/clean.js | 6 +
.../node_modules/semver/functions/cmp.js | 48 +
.../node_modules/semver/functions/coerce.js | 51 +
.../semver/functions/compare-build.js | 7 +
.../semver/functions/compare-loose.js | 3 +
.../node_modules/semver/functions/compare.js | 5 +
.../node_modules/semver/functions/diff.js | 23 +
.../node_modules/semver/functions/eq.js | 3 +
.../node_modules/semver/functions/gt.js | 3 +
.../node_modules/semver/functions/gte.js | 3 +
.../node_modules/semver/functions/inc.js | 15 +
.../node_modules/semver/functions/lt.js | 3 +
.../node_modules/semver/functions/lte.js | 3 +
.../node_modules/semver/functions/major.js | 3 +
.../node_modules/semver/functions/minor.js | 3 +
.../node_modules/semver/functions/neq.js | 3 +
.../node_modules/semver/functions/parse.js | 33 +
.../node_modules/semver/functions/patch.js | 3 +
.../semver/functions/prerelease.js | 6 +
.../node_modules/semver/functions/rcompare.js | 3 +
.../node_modules/semver/functions/rsort.js | 3 +
.../semver/functions/satisfies.js | 10 +
.../node_modules/semver/functions/sort.js | 3 +
.../node_modules/semver/functions/valid.js | 6 +
.../node-pre-gyp/node_modules/semver/index.js | 48 +
.../node_modules/semver/internal/constants.js | 17 +
.../node_modules/semver/internal/debug.js | 9 +
.../semver/internal/identifiers.js | 23 +
.../semver/internal/parse-options.js | 11 +
.../node_modules/semver/internal/re.js | 182 +
.../node_modules/semver/package.json | 73 +
.../node_modules/semver/preload.js | 2 +
.../node_modules/semver/range.bnf | 16 +
.../node_modules/semver/ranges/gtr.js | 4 +
.../node_modules/semver/ranges/intersects.js | 7 +
.../node_modules/semver/ranges/ltr.js | 4 +
.../semver/ranges/max-satisfying.js | 25 +
.../semver/ranges/min-satisfying.js | 24 +
.../node_modules/semver/ranges/min-version.js | 60 +
.../node_modules/semver/ranges/outside.js | 80 +
.../node_modules/semver/ranges/simplify.js | 44 +
.../node_modules/semver/ranges/subset.js | 222 +
.../semver/ranges/to-comparators.js | 8 +
.../node_modules/semver/ranges/valid.js | 11 +
.../@mapbox/node-pre-gyp/package.json | 101 +
backend/node_modules/agent-base/README.md | 145 +
.../agent-base/dist/src/index.d.ts | 78 +
.../node_modules/agent-base/dist/src/index.js | 203 +
.../agent-base/dist/src/index.js.map | 1 +
.../agent-base/dist/src/promisify.d.ts | 4 +
.../agent-base/dist/src/promisify.js | 18 +
.../agent-base/dist/src/promisify.js.map | 1 +
.../agent-base/node_modules/debug/LICENSE | 20 +
.../agent-base/node_modules/debug/README.md | 478 ++
.../node_modules/debug/package.json | 101 +
.../node_modules/debug/src/browser.js | 269 +
.../node_modules/debug/src/common.js | 274 +
.../node_modules/debug/src/index.js | 10 +
.../agent-base/node_modules/debug/src/node.js | 263 +
.../agent-base/node_modules/ms/index.js | 162 +
.../agent-base/node_modules/ms/license.md | 21 +
.../agent-base/node_modules/ms/package.json | 69 +
.../agent-base/node_modules/ms/readme.md | 60 +
backend/node_modules/agent-base/package.json | 94 +
backend/node_modules/agent-base/src/index.ts | 345 +
.../node_modules/agent-base/src/promisify.ts | 33 +
backend/node_modules/aproba/CHANGELOG.md | 4 +
backend/node_modules/aproba/LICENSE | 14 +
backend/node_modules/aproba/README.md | 94 +
backend/node_modules/aproba/index.js | 105 +
backend/node_modules/aproba/package.json | 63 +
.../node_modules/are-we-there-yet/LICENSE.md | 18 +
.../node_modules/are-we-there-yet/README.md | 208 +
.../are-we-there-yet/lib/index.js | 4 +
.../are-we-there-yet/lib/tracker-base.js | 11 +
.../are-we-there-yet/lib/tracker-group.js | 116 +
.../are-we-there-yet/lib/tracker-stream.js | 36 +
.../are-we-there-yet/lib/tracker.js | 32 +
.../are-we-there-yet/package.json | 80 +
backend/node_modules/bcrypt/.editorconfig | 19 +
backend/node_modules/bcrypt/.travis.yml | 63 +
backend/node_modules/bcrypt/CHANGELOG.md | 171 +
backend/node_modules/bcrypt/ISSUE_TEMPLATE.md | 18 +
backend/node_modules/bcrypt/LICENSE | 19 +
backend/node_modules/bcrypt/Makefile | 19 +
backend/node_modules/bcrypt/README.md | 374 ++
backend/node_modules/bcrypt/SECURITY.md | 15 +
backend/node_modules/bcrypt/appveyor.yml | 50 +
backend/node_modules/bcrypt/bcrypt.js | 236 +
backend/node_modules/bcrypt/binding.gyp | 57 +
.../bcrypt/examples/async_compare.js | 21 +
.../bcrypt/examples/forever_gen_salt.js | 8 +
.../lib/binding/napi-v3/bcrypt_lib.node | Bin 0 -> 84528 bytes
backend/node_modules/bcrypt/package.json | 163 +
backend/node_modules/bcrypt/promises.js | 42 +
backend/node_modules/bcrypt/src/bcrypt.cc | 315 +
.../node_modules/bcrypt/src/bcrypt_node.cc | 286 +
backend/node_modules/bcrypt/src/blowfish.cc | 679 ++
backend/node_modules/bcrypt/src/node_blf.h | 132 +
backend/node_modules/bcrypt/test/async.js | 181 +
.../bcrypt/test/implementation.js | 53 +
backend/node_modules/bcrypt/test/promise.js | 252 +
.../node_modules/bcrypt/test/repetitions.js | 118 +
backend/node_modules/bcrypt/test/sync.js | 137 +
backend/node_modules/bcrypt/test_alpine.sh | 12 +
backend/node_modules/chownr/LICENSE | 15 +
backend/node_modules/chownr/README.md | 3 +
backend/node_modules/chownr/chownr.js | 167 +
backend/node_modules/chownr/package.json | 65 +
backend/node_modules/color-support/LICENSE | 15 +
backend/node_modules/color-support/README.md | 129 +
backend/node_modules/color-support/bin.js | 3 +
backend/node_modules/color-support/browser.js | 14 +
backend/node_modules/color-support/index.js | 134 +
.../node_modules/color-support/package.json | 71 +
.../console-control-strings/LICENSE | 13 +
.../console-control-strings/README.md | 145 +
.../console-control-strings/README.md~ | 140 +
.../console-control-strings/index.js | 125 +
.../console-control-strings/package.json | 61 +
backend/node_modules/delegates/.npmignore | 1 +
backend/node_modules/delegates/History.md | 22 +
backend/node_modules/delegates/License | 20 +
backend/node_modules/delegates/Makefile | 8 +
backend/node_modules/delegates/Readme.md | 94 +
backend/node_modules/delegates/index.js | 121 +
backend/node_modules/delegates/package.json | 48 +
backend/node_modules/delegates/test/index.js | 94 +
backend/node_modules/detect-libc/.npmignore | 7 +
backend/node_modules/detect-libc/LICENSE | 201 +
backend/node_modules/detect-libc/README.md | 78 +
.../detect-libc/bin/detect-libc.js | 18 +
.../detect-libc/lib/detect-libc.js | 92 +
backend/node_modules/detect-libc/package.json | 70 +
backend/node_modules/fs-minipass/LICENSE | 15 +
backend/node_modules/fs-minipass/README.md | 70 +
backend/node_modules/fs-minipass/index.js | 422 ++
backend/node_modules/fs-minipass/package.json | 68 +
backend/node_modules/fs.realpath/LICENSE | 43 +
backend/node_modules/fs.realpath/README.md | 33 +
backend/node_modules/fs.realpath/index.js | 66 +
backend/node_modules/fs.realpath/old.js | 303 +
backend/node_modules/fs.realpath/package.json | 59 +
backend/node_modules/gauge/LICENSE.md | 20 +
backend/node_modules/gauge/README.md | 402 ++
backend/node_modules/gauge/lib/base-theme.js | 18 +
backend/node_modules/gauge/lib/demo.js | 45 +
backend/node_modules/gauge/lib/error.js | 24 +
backend/node_modules/gauge/lib/has-color.js | 4 +
backend/node_modules/gauge/lib/index.js | 290 +
backend/node_modules/gauge/lib/plumbing.js | 50 +
backend/node_modules/gauge/lib/process.js | 3 +
.../node_modules/gauge/lib/progress-bar.js | 41 +
.../node_modules/gauge/lib/render-template.js | 222 +
.../node_modules/gauge/lib/set-immediate.js | 7 +
.../node_modules/gauge/lib/set-interval.js | 3 +
backend/node_modules/gauge/lib/spin.js | 5 +
.../node_modules/gauge/lib/template-item.js | 87 +
backend/node_modules/gauge/lib/theme-set.js | 122 +
backend/node_modules/gauge/lib/themes.js | 56 +
.../node_modules/gauge/lib/wide-truncate.js | 31 +
backend/node_modules/gauge/package.json | 89 +
backend/node_modules/glob/LICENSE | 21 +
backend/node_modules/glob/README.md | 378 ++
backend/node_modules/glob/common.js | 236 +
backend/node_modules/glob/glob.js | 787 +++
backend/node_modules/glob/package.json | 85 +
backend/node_modules/glob/sync.js | 483 ++
backend/node_modules/has-unicode/LICENSE | 14 +
backend/node_modules/has-unicode/README.md | 43 +
backend/node_modules/has-unicode/index.js | 16 +
backend/node_modules/has-unicode/package.json | 58 +
.../node_modules/https-proxy-agent/README.md | 137 +
.../https-proxy-agent/dist/agent.d.ts | 30 +
.../https-proxy-agent/dist/agent.js | 180 +
.../https-proxy-agent/dist/agent.js.map | 1 +
.../https-proxy-agent/dist/index.d.ts | 23 +
.../https-proxy-agent/dist/index.js | 14 +
.../https-proxy-agent/dist/index.js.map | 1 +
.../dist/parse-proxy-response.d.ts | 7 +
.../dist/parse-proxy-response.js | 66 +
.../dist/parse-proxy-response.js.map | 1 +
.../node_modules/debug/LICENSE | 20 +
.../node_modules/debug/README.md | 478 ++
.../node_modules/debug/package.json | 101 +
.../node_modules/debug/src/browser.js | 269 +
.../node_modules/debug/src/common.js | 274 +
.../node_modules/debug/src/index.js | 10 +
.../node_modules/debug/src/node.js | 263 +
.../node_modules/ms/index.js | 162 +
.../node_modules/ms/license.md | 21 +
.../node_modules/ms/package.json | 69 +
.../node_modules/ms/readme.md | 60 +
.../https-proxy-agent/package.json | 86 +
backend/node_modules/inflight/LICENSE | 15 +
backend/node_modules/inflight/README.md | 37 +
backend/node_modules/inflight/inflight.js | 54 +
backend/node_modules/inflight/package.json | 58 +
backend/node_modules/minipass/LICENSE | 15 +
backend/node_modules/minipass/README.md | 613 ++
backend/node_modules/minipass/index.js | 555 ++
backend/node_modules/minipass/package.json | 74 +
backend/node_modules/minizlib/LICENSE | 26 +
backend/node_modules/minizlib/README.md | 60 +
backend/node_modules/minizlib/constants.js | 115 +
backend/node_modules/minizlib/index.js | 348 +
backend/node_modules/minizlib/package.json | 75 +
backend/node_modules/mkdirp/CHANGELOG.md | 15 +
backend/node_modules/mkdirp/LICENSE | 21 +
backend/node_modules/mkdirp/bin/cmd.js | 68 +
backend/node_modules/mkdirp/index.js | 31 +
backend/node_modules/mkdirp/lib/find-made.js | 29 +
.../node_modules/mkdirp/lib/mkdirp-manual.js | 64 +
.../node_modules/mkdirp/lib/mkdirp-native.js | 39 +
backend/node_modules/mkdirp/lib/opts-arg.js | 23 +
backend/node_modules/mkdirp/lib/path-arg.js | 29 +
backend/node_modules/mkdirp/lib/use-native.js | 10 +
backend/node_modules/mkdirp/package.json | 75 +
backend/node_modules/mkdirp/readme.markdown | 266 +
.../node_modules/node-addon-api/CHANGELOG.md | 722 +++
.../node_modules/node-addon-api/LICENSE.md | 13 +
backend/node_modules/node-addon-api/README.md | 293 +
.../node_modules/node-addon-api/common.gypi | 21 +
.../node_modules/node-addon-api/except.gypi | 16 +
backend/node_modules/node-addon-api/index.js | 11 +
.../node-addon-api/napi-inl.deprecated.h | 192 +
.../node_modules/node-addon-api/napi-inl.h | 5671 +++++++++++++++++
backend/node_modules/node-addon-api/napi.h | 2727 ++++++++
.../node_modules/node-addon-api/node_api.gyp | 9 +
.../node_modules/node-addon-api/noexcept.gypi | 16 +
backend/node_modules/node-addon-api/nothing.c | 0
.../node-addon-api/package-support.json | 21 +
.../node_modules/node-addon-api/package.json | 393 ++
.../node-addon-api/tools/README.md | 73 +
.../node-addon-api/tools/check-napi.js | 100 +
.../node-addon-api/tools/clang-format.js | 67 +
.../node-addon-api/tools/conversion.js | 309 +
backend/node_modules/node-fetch/LICENSE.md | 22 +
backend/node_modules/node-fetch/README.md | 590 ++
backend/node_modules/node-fetch/browser.js | 25 +
.../node_modules/node-fetch/lib/index.es.js | 1662 +++++
backend/node_modules/node-fetch/lib/index.js | 1671 +++++
backend/node_modules/node-fetch/lib/index.mjs | 1660 +++++
.../node-fetch/node_modules/tr46/.npmignore | 4 +
.../node-fetch/node_modules/tr46/index.js | 193 +
.../node-fetch/node_modules/tr46/lib/.gitkeep | 0
.../node_modules/tr46/lib/mappingTable.json | 1 +
.../node-fetch/node_modules/tr46/package.json | 59 +
.../webidl-conversions/LICENSE.md | 12 +
.../node_modules/webidl-conversions/README.md | 53 +
.../webidl-conversions/lib/index.js | 189 +
.../webidl-conversions/package.json | 59 +
.../node_modules/whatwg-url/LICENSE.txt | 21 +
.../node_modules/whatwg-url/README.md | 67 +
.../node_modules/whatwg-url/lib/URL-impl.js | 200 +
.../node_modules/whatwg-url/lib/URL.js | 196 +
.../node_modules/whatwg-url/lib/public-api.js | 11 +
.../whatwg-url/lib/url-state-machine.js | 1297 ++++
.../node_modules/whatwg-url/lib/utils.js | 20 +
.../node_modules/whatwg-url/package.json | 67 +
backend/node_modules/node-fetch/package.json | 95 +
backend/node_modules/npmlog/LICENSE.md | 20 +
backend/node_modules/npmlog/README.md | 216 +
backend/node_modules/npmlog/lib/log.js | 403 ++
backend/node_modules/npmlog/package.json | 77 +
.../node_modules/path-is-absolute/index.js | 20 +
backend/node_modules/path-is-absolute/license | 21 +
.../path-is-absolute/package.json | 75 +
.../node_modules/path-is-absolute/readme.md | 59 +
.../readable-stream/CONTRIBUTING.md | 38 +
.../readable-stream/GOVERNANCE.md | 136 +
backend/node_modules/readable-stream/LICENSE | 47 +
.../node_modules/readable-stream/README.md | 106 +
.../readable-stream/errors-browser.js | 127 +
.../node_modules/readable-stream/errors.js | 116 +
.../readable-stream/experimentalWarning.js | 17 +
.../readable-stream/lib/_stream_duplex.js | 139 +
.../lib/_stream_passthrough.js | 39 +
.../readable-stream/lib/_stream_readable.js | 1124 ++++
.../readable-stream/lib/_stream_transform.js | 201 +
.../readable-stream/lib/_stream_writable.js | 697 ++
.../lib/internal/streams/async_iterator.js | 207 +
.../lib/internal/streams/buffer_list.js | 210 +
.../lib/internal/streams/destroy.js | 105 +
.../lib/internal/streams/end-of-stream.js | 104 +
.../lib/internal/streams/from-browser.js | 3 +
.../lib/internal/streams/from.js | 64 +
.../lib/internal/streams/pipeline.js | 97 +
.../lib/internal/streams/state.js | 27 +
.../lib/internal/streams/stream-browser.js | 1 +
.../lib/internal/streams/stream.js | 1 +
.../node_modules/readable-stream/package.json | 97 +
.../readable-stream/readable-browser.js | 9 +
.../node_modules/readable-stream/readable.js | 16 +
backend/node_modules/rimraf/CHANGELOG.md | 65 +
backend/node_modules/rimraf/LICENSE | 15 +
backend/node_modules/rimraf/README.md | 101 +
backend/node_modules/rimraf/bin.js | 68 +
backend/node_modules/rimraf/package.json | 70 +
backend/node_modules/rimraf/rimraf.js | 360 ++
.../node_modules/set-blocking/CHANGELOG.md | 26 +
backend/node_modules/set-blocking/LICENSE.txt | 14 +
backend/node_modules/set-blocking/README.md | 31 +
backend/node_modules/set-blocking/index.js | 7 +
.../node_modules/set-blocking/package.json | 70 +
backend/node_modules/string_decoder/LICENSE | 48 +
backend/node_modules/string_decoder/README.md | 47 +
.../string_decoder/lib/string_decoder.js | 296 +
.../node_modules/safe-buffer/LICENSE | 21 +
.../node_modules/safe-buffer/README.md | 584 ++
.../node_modules/safe-buffer/index.d.ts | 187 +
.../node_modules/safe-buffer/index.js | 65 +
.../node_modules/safe-buffer/package.json | 76 +
.../node_modules/string_decoder/package.json | 62 +
backend/node_modules/tar/LICENSE | 15 +
backend/node_modules/tar/README.md | 1042 +++
backend/node_modules/tar/index.js | 18 +
backend/node_modules/tar/lib/create.js | 104 +
backend/node_modules/tar/lib/extract.js | 107 +
.../node_modules/tar/lib/get-write-flag.js | 20 +
backend/node_modules/tar/lib/header.js | 288 +
.../node_modules/tar/lib/high-level-opt.js | 29 +
backend/node_modules/tar/lib/large-numbers.js | 99 +
backend/node_modules/tar/lib/list.js | 132 +
backend/node_modules/tar/lib/mkdir.js | 213 +
backend/node_modules/tar/lib/mode-fix.js | 23 +
.../node_modules/tar/lib/normalize-unicode.js | 11 +
.../tar/lib/normalize-windows-path.js | 8 +
backend/node_modules/tar/lib/pack.js | 397 ++
backend/node_modules/tar/lib/parse.js | 481 ++
.../node_modules/tar/lib/path-reservations.js | 148 +
backend/node_modules/tar/lib/pax.js | 143 +
backend/node_modules/tar/lib/read-entry.js | 100 +
backend/node_modules/tar/lib/replace.js | 223 +
.../tar/lib/strip-absolute-path.js | 24 +
.../tar/lib/strip-trailing-slashes.js | 13 +
backend/node_modules/tar/lib/types.js | 44 +
backend/node_modules/tar/lib/unpack.js | 877 +++
backend/node_modules/tar/lib/update.js | 36 +
backend/node_modules/tar/lib/warn-mixin.js | 21 +
backend/node_modules/tar/lib/winchars.js | 23 +
backend/node_modules/tar/lib/write-entry.js | 525 ++
backend/node_modules/tar/package.json | 92 +
.../node_modules/util-deprecate/History.md | 16 +
backend/node_modules/util-deprecate/LICENSE | 24 +
backend/node_modules/util-deprecate/README.md | 53 +
.../node_modules/util-deprecate/browser.js | 67 +
backend/node_modules/util-deprecate/node.js | 6 +
.../node_modules/util-deprecate/package.json | 56 +
backend/node_modules/wide-align/LICENSE | 14 +
backend/node_modules/wide-align/README.md | 47 +
backend/node_modules/wide-align/align.js | 65 +
backend/node_modules/wide-align/package.json | 66 +
backend/package-lock.json | 321 +
backend/package.json | 1 +
backend/routes/authRoutes.js | 54 +
backend/server.js | 6 +
409 files changed, 60267 insertions(+)
create mode 100644 backend/models/userModel.js
create mode 120000 backend/node_modules/.bin/color-support
create mode 120000 backend/node_modules/.bin/detect-libc
create mode 120000 backend/node_modules/.bin/mkdirp
create mode 120000 backend/node_modules/.bin/node-pre-gyp
create mode 120000 backend/node_modules/.bin/rimraf
create mode 100644 backend/node_modules/@mapbox/node-pre-gyp/CHANGELOG.md
create mode 100644 backend/node_modules/@mapbox/node-pre-gyp/LICENSE
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create mode 100644 backend/node_modules/readable-stream/lib/internal/streams/buffer_list.js
create mode 100644 backend/node_modules/readable-stream/lib/internal/streams/destroy.js
create mode 100644 backend/node_modules/readable-stream/lib/internal/streams/end-of-stream.js
create mode 100644 backend/node_modules/readable-stream/lib/internal/streams/from-browser.js
create mode 100644 backend/node_modules/readable-stream/lib/internal/streams/from.js
create mode 100644 backend/node_modules/readable-stream/lib/internal/streams/pipeline.js
create mode 100644 backend/node_modules/readable-stream/lib/internal/streams/state.js
create mode 100644 backend/node_modules/readable-stream/lib/internal/streams/stream-browser.js
create mode 100644 backend/node_modules/readable-stream/lib/internal/streams/stream.js
create mode 100644 backend/node_modules/readable-stream/package.json
create mode 100644 backend/node_modules/readable-stream/readable-browser.js
create mode 100644 backend/node_modules/readable-stream/readable.js
create mode 100644 backend/node_modules/rimraf/CHANGELOG.md
create mode 100644 backend/node_modules/rimraf/LICENSE
create mode 100644 backend/node_modules/rimraf/README.md
create mode 100755 backend/node_modules/rimraf/bin.js
create mode 100644 backend/node_modules/rimraf/package.json
create mode 100644 backend/node_modules/rimraf/rimraf.js
create mode 100644 backend/node_modules/set-blocking/CHANGELOG.md
create mode 100644 backend/node_modules/set-blocking/LICENSE.txt
create mode 100644 backend/node_modules/set-blocking/README.md
create mode 100644 backend/node_modules/set-blocking/index.js
create mode 100644 backend/node_modules/set-blocking/package.json
create mode 100644 backend/node_modules/string_decoder/LICENSE
create mode 100644 backend/node_modules/string_decoder/README.md
create mode 100644 backend/node_modules/string_decoder/lib/string_decoder.js
create mode 100644 backend/node_modules/string_decoder/node_modules/safe-buffer/LICENSE
create mode 100644 backend/node_modules/string_decoder/node_modules/safe-buffer/README.md
create mode 100644 backend/node_modules/string_decoder/node_modules/safe-buffer/index.d.ts
create mode 100644 backend/node_modules/string_decoder/node_modules/safe-buffer/index.js
create mode 100644 backend/node_modules/string_decoder/node_modules/safe-buffer/package.json
create mode 100644 backend/node_modules/string_decoder/package.json
create mode 100644 backend/node_modules/tar/LICENSE
create mode 100644 backend/node_modules/tar/README.md
create mode 100644 backend/node_modules/tar/index.js
create mode 100644 backend/node_modules/tar/lib/create.js
create mode 100644 backend/node_modules/tar/lib/extract.js
create mode 100644 backend/node_modules/tar/lib/get-write-flag.js
create mode 100644 backend/node_modules/tar/lib/header.js
create mode 100644 backend/node_modules/tar/lib/high-level-opt.js
create mode 100644 backend/node_modules/tar/lib/large-numbers.js
create mode 100644 backend/node_modules/tar/lib/list.js
create mode 100644 backend/node_modules/tar/lib/mkdir.js
create mode 100644 backend/node_modules/tar/lib/mode-fix.js
create mode 100644 backend/node_modules/tar/lib/normalize-unicode.js
create mode 100644 backend/node_modules/tar/lib/normalize-windows-path.js
create mode 100644 backend/node_modules/tar/lib/pack.js
create mode 100644 backend/node_modules/tar/lib/parse.js
create mode 100644 backend/node_modules/tar/lib/path-reservations.js
create mode 100644 backend/node_modules/tar/lib/pax.js
create mode 100644 backend/node_modules/tar/lib/read-entry.js
create mode 100644 backend/node_modules/tar/lib/replace.js
create mode 100644 backend/node_modules/tar/lib/strip-absolute-path.js
create mode 100644 backend/node_modules/tar/lib/strip-trailing-slashes.js
create mode 100644 backend/node_modules/tar/lib/types.js
create mode 100644 backend/node_modules/tar/lib/unpack.js
create mode 100644 backend/node_modules/tar/lib/update.js
create mode 100644 backend/node_modules/tar/lib/warn-mixin.js
create mode 100644 backend/node_modules/tar/lib/winchars.js
create mode 100644 backend/node_modules/tar/lib/write-entry.js
create mode 100644 backend/node_modules/tar/package.json
create mode 100644 backend/node_modules/util-deprecate/History.md
create mode 100644 backend/node_modules/util-deprecate/LICENSE
create mode 100644 backend/node_modules/util-deprecate/README.md
create mode 100644 backend/node_modules/util-deprecate/browser.js
create mode 100644 backend/node_modules/util-deprecate/node.js
create mode 100644 backend/node_modules/util-deprecate/package.json
create mode 100755 backend/node_modules/wide-align/LICENSE
create mode 100755 backend/node_modules/wide-align/README.md
create mode 100755 backend/node_modules/wide-align/align.js
create mode 100755 backend/node_modules/wide-align/package.json
create mode 100644 backend/routes/authRoutes.js
diff --git a/backend/models/userModel.js b/backend/models/userModel.js
new file mode 100644
index 0000000..c895f05
--- /dev/null
+++ b/backend/models/userModel.js
@@ -0,0 +1,33 @@
+const mongoose = require('mongoose');
+const bcrypt = require('bcrypt');
+
+const UserSchema = new mongoose.Schema({
+ username:String,
+ password: String
+})
+
+//Here we'll do the encryption
+UserSchema.pre('save', async function (next) {
+ try{
+ //here we generate salt and hash, then we modify the value
+ //of this.password and we save it in the db
+ const salt = await bcrypt.genSalt(10);
+ const hash = await bcrypt.hash(this.password, salt);
+ this.password = hash;
+ next();
+ }catch(error){
+ next(error);
+ }
+ })
+
+ //this function compares an encrypted password stored in the database
+ //with a plainpassword inserted by the user during the login
+ UserSchema.methods.comparePassword = function(candidatePassword, cb) {
+ bcrypt.compare(candidatePassword, this.password, function(err, isMatch) {
+ if (err) return cb(err);
+ cb(null, isMatch);
+ });
+ };
+
+const userFromDb = mongoose.model('credentials', UserSchema);
+module.exports = userFromDb;
diff --git a/backend/node_modules/.bin/color-support b/backend/node_modules/.bin/color-support
new file mode 120000
index 0000000..fcbcb28
--- /dev/null
+++ b/backend/node_modules/.bin/color-support
@@ -0,0 +1 @@
+../color-support/bin.js
\ No newline at end of file
diff --git a/backend/node_modules/.bin/detect-libc b/backend/node_modules/.bin/detect-libc
new file mode 120000
index 0000000..b4c4b76
--- /dev/null
+++ b/backend/node_modules/.bin/detect-libc
@@ -0,0 +1 @@
+../detect-libc/bin/detect-libc.js
\ No newline at end of file
diff --git a/backend/node_modules/.bin/mkdirp b/backend/node_modules/.bin/mkdirp
new file mode 120000
index 0000000..017896c
--- /dev/null
+++ b/backend/node_modules/.bin/mkdirp
@@ -0,0 +1 @@
+../mkdirp/bin/cmd.js
\ No newline at end of file
diff --git a/backend/node_modules/.bin/node-pre-gyp b/backend/node_modules/.bin/node-pre-gyp
new file mode 120000
index 0000000..2946e6a
--- /dev/null
+++ b/backend/node_modules/.bin/node-pre-gyp
@@ -0,0 +1 @@
+../@mapbox/node-pre-gyp/bin/node-pre-gyp
\ No newline at end of file
diff --git a/backend/node_modules/.bin/rimraf b/backend/node_modules/.bin/rimraf
new file mode 120000
index 0000000..4cd49a4
--- /dev/null
+++ b/backend/node_modules/.bin/rimraf
@@ -0,0 +1 @@
+../rimraf/bin.js
\ No newline at end of file
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/CHANGELOG.md b/backend/node_modules/@mapbox/node-pre-gyp/CHANGELOG.md
new file mode 100644
index 0000000..74ecd77
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/CHANGELOG.md
@@ -0,0 +1,497 @@
+# node-pre-gyp changelog
+
+## 1.0.7
+- Upgraded nyc and npmlog to address https://github.com/advisories/GHSA-93q8-gq69-wqmw
+
+## 1.0.6
+- Added node v17 to the internal node releases listing
+- Upgraded various dependencies declared in package.json to latest major versions (node-fetch from 2.6.1 to 2.6.5, npmlog from 4.1.2 to 5.01, semver from 7.3.4 to 7.3.5, and tar from 6.1.0 to 6.1.11)
+- Fixed bug in `staging_host` parameter (https://github.com/mapbox/node-pre-gyp/pull/590)
+
+
+## 1.0.5
+- Fix circular reference warning with node >= v14
+
+## 1.0.4
+- Added node v16 to the internal node releases listing
+
+## 1.0.3
+- Improved support configuring s3 uploads (solves https://github.com/mapbox/node-pre-gyp/issues/571)
+ - New options added in https://github.com/mapbox/node-pre-gyp/pull/576: 'bucket', 'region', and `s3ForcePathStyle`
+
+## 1.0.2
+- Fixed regression in proxy support (https://github.com/mapbox/node-pre-gyp/issues/572)
+
+## 1.0.1
+- Switched from mkdirp@1.0.4 to make-dir@3.1.0 to avoid this bug: https://github.com/isaacs/node-mkdirp/issues/31
+
+## 1.0.0
+- Module is now name-spaced at `@mapbox/node-pre-gyp` and the original `node-pre-gyp` is deprecated.
+- New: support for staging and production s3 targets (see README.md)
+- BREAKING: no longer supporting `node_pre_gyp_accessKeyId` & `node_pre_gyp_secretAccessKey`, use `AWS_ACCESS_KEY_ID` & `AWS_SECRET_ACCESS_KEY` instead to authenticate against s3 for `info`, `publish`, and `unpublish` commands.
+- Dropped node v6 support, added node v14 support
+- Switched tests to use mapbox-owned bucket for testing
+- Added coverage tracking and linting with eslint
+- Added back support for symlinks inside the tarball
+- Upgraded all test apps to N-API/node-addon-api
+- New: support for staging and production s3 targets (see README.md)
+- Added `node_pre_gyp_s3_host` env var which has priority over the `--s3_host` option or default.
+- Replaced needle with node-fetch
+- Added proxy support for node-fetch
+- Upgraded to mkdirp@1.x
+
+## 0.17.0
+- Got travis + appveyor green again
+- Added support for more node versions
+
+## 0.16.0
+
+- Added Node 15 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/520)
+
+## 0.15.0
+
+- Bump dependency on `mkdirp` from `^0.5.1` to `^0.5.3` (https://github.com/mapbox/node-pre-gyp/pull/492)
+- Bump dependency on `needle` from `^2.2.1` to `^2.5.0` (https://github.com/mapbox/node-pre-gyp/pull/502)
+- Added Node 14 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/501)
+
+## 0.14.0
+
+- Defer modules requires in napi.js (https://github.com/mapbox/node-pre-gyp/pull/434)
+- Bump dependency on `tar` from `^4` to `^4.4.2` (https://github.com/mapbox/node-pre-gyp/pull/454)
+- Support extracting compiled binary from local offline mirror (https://github.com/mapbox/node-pre-gyp/pull/459)
+- Added Node 13 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/483)
+
+## 0.13.0
+
+- Added Node 12 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/449)
+
+## 0.12.0
+
+- Fixed double-build problem with node v10 (https://github.com/mapbox/node-pre-gyp/pull/428)
+- Added node 11 support in the local database (https://github.com/mapbox/node-pre-gyp/pull/422)
+
+## 0.11.0
+
+- Fixed double-install problem with node v10
+- Significant N-API improvements (https://github.com/mapbox/node-pre-gyp/pull/405)
+
+## 0.10.3
+
+- Now will use `request` over `needle` if request is installed. By default `needle` is used for `https`. This should unbreak proxy support that regressed in v0.9.0
+
+## 0.10.2
+
+- Fixed rc/deep-extent security vulnerability
+- Fixed broken reinstall script do to incorrectly named get_best_napi_version
+
+## 0.10.1
+
+- Fix needle error event (@medns)
+
+## 0.10.0
+
+- Allow for a single-level module path when packing @allenluce (https://github.com/mapbox/node-pre-gyp/pull/371)
+- Log warnings instead of errors when falling back @xzyfer (https://github.com/mapbox/node-pre-gyp/pull/366)
+- Add Node.js v10 support to tests (https://github.com/mapbox/node-pre-gyp/pull/372)
+- Remove retire.js from CI (https://github.com/mapbox/node-pre-gyp/pull/372)
+- Remove support for Node.js v4 due to [EOL on April 30th, 2018](https://github.com/nodejs/Release/blob/7dd52354049cae99eed0e9fe01345b0722a86fde/schedule.json#L14)
+- Update appveyor tests to install default NPM version instead of NPM v2.x for all Windows builds (https://github.com/mapbox/node-pre-gyp/pull/375)
+
+## 0.9.1
+
+- Fixed regression (in v0.9.0) with support for http redirects @allenluce (https://github.com/mapbox/node-pre-gyp/pull/361)
+
+## 0.9.0
+
+- Switched from using `request` to `needle` to reduce size of module deps (https://github.com/mapbox/node-pre-gyp/pull/350)
+
+## 0.8.0
+
+- N-API support (@inspiredware)
+
+## 0.7.1
+
+- Upgraded to tar v4.x
+
+## 0.7.0
+
+ - Updated request and hawk (#347)
+ - Dropped node v0.10.x support
+
+## 0.6.40
+
+ - Improved error reporting if an install fails
+
+## 0.6.39
+
+ - Support for node v9
+ - Support for versioning on `{libc}` to allow binaries to work on non-glic linux systems like alpine linux
+
+
+## 0.6.38
+
+ - Maintaining compatibility (for v0.6.x series) with node v0.10.x
+
+## 0.6.37
+
+ - Solved one part of #276: now now deduce the node ABI from the major version for node >= 2 even when not stored in the abi_crosswalk.json
+ - Fixed docs to avoid mentioning the deprecated and dangerous `prepublish` in package.json (#291)
+ - Add new node versions to crosswalk
+ - Ported tests to use tape instead of mocha
+ - Got appveyor tests passing by downgrading npm and node-gyp
+
+## 0.6.36
+
+ - Removed the running of `testbinary` during install. Because this was regressed for so long, it is too dangerous to re-enable by default. Developers needing validation can call `node-pre-gyp testbinary` directory.
+ - Fixed regression in v0.6.35 for electron installs (now skipping binary validation which is not yet supported for electron)
+
+## 0.6.35
+
+ - No longer recommending `npm ls` in `prepublish` (#291)
+ - Fixed testbinary command (#283) @szdavid92
+
+## 0.6.34
+
+ - Added new node versions to crosswalk, including v8
+ - Upgraded deps to latest versions, started using `^` instead of `~` for all deps.
+
+## 0.6.33
+
+ - Improved support for yarn
+
+## 0.6.32
+
+ - Honor npm configuration for CA bundles (@heikkipora)
+ - Add node-pre-gyp and npm versions to user agent (@addaleax)
+ - Updated various deps
+ - Add known node version for v7.x
+
+## 0.6.31
+
+ - Updated various deps
+
+## 0.6.30
+
+ - Update to npmlog@4.x and semver@5.3.x
+ - Add known node version for v6.5.0
+
+## 0.6.29
+
+ - Add known node versions for v0.10.45, v0.12.14, v4.4.4, v5.11.1, and v6.1.0
+
+## 0.6.28
+
+ - Now more verbose when remote binaries are not available. This is needed since npm is increasingly more quiet by default
+ and users need to know why builds are falling back to source compiles that might then error out.
+
+## 0.6.27
+
+ - Add known node version for node v6
+ - Stopped bundling dependencies
+ - Documented method for module authors to avoid bundling node-pre-gyp
+ - See https://github.com/mapbox/node-pre-gyp/tree/master#configuring for details
+
+## 0.6.26
+
+ - Skip validation for nw runtime (https://github.com/mapbox/node-pre-gyp/pull/181) via @fleg
+
+## 0.6.25
+
+ - Improved support for auto-detection of electron runtime in `node-pre-gyp.find()`
+ - Pull request from @enlight - https://github.com/mapbox/node-pre-gyp/pull/187
+ - Add known node version for 4.4.1 and 5.9.1
+
+## 0.6.24
+
+ - Add known node version for 5.8.0, 5.9.0, and 4.4.0.
+
+## 0.6.23
+
+ - Add known node version for 0.10.43, 0.12.11, 4.3.2, and 5.7.1.
+
+## 0.6.22
+
+ - Add known node version for 4.3.1, and 5.7.0.
+
+## 0.6.21
+
+ - Add known node version for 0.10.42, 0.12.10, 4.3.0, and 5.6.0.
+
+## 0.6.20
+
+ - Add known node version for 4.2.5, 4.2.6, 5.4.0, 5.4.1,and 5.5.0.
+
+## 0.6.19
+
+ - Add known node version for 4.2.4
+
+## 0.6.18
+
+ - Add new known node versions for 0.10.x, 0.12.x, 4.x, and 5.x
+
+## 0.6.17
+
+ - Re-tagged to fix packaging problem of `Error: Cannot find module 'isarray'`
+
+## 0.6.16
+
+ - Added known version in crosswalk for 5.1.0.
+
+## 0.6.15
+
+ - Upgraded tar-pack (https://github.com/mapbox/node-pre-gyp/issues/182)
+ - Support custom binary hosting mirror (https://github.com/mapbox/node-pre-gyp/pull/170)
+ - Added known version in crosswalk for 4.2.2.
+
+## 0.6.14
+
+ - Added node 5.x version
+
+## 0.6.13
+
+ - Added more known node 4.x versions
+
+## 0.6.12
+
+ - Added support for [Electron](http://electron.atom.io/). Just pass the `--runtime=electron` flag when building/installing. Thanks @zcbenz
+
+## 0.6.11
+
+ - Added known node and io.js versions including more 3.x and 4.x versions
+
+## 0.6.10
+
+ - Added known node and io.js versions including 3.x and 4.x versions
+ - Upgraded `tar` dep
+
+## 0.6.9
+
+ - Upgraded `rc` dep
+ - Updated known io.js version: v2.4.0
+
+## 0.6.8
+
+ - Upgraded `semver` and `rimraf` deps
+ - Updated known node and io.js versions
+
+## 0.6.7
+
+ - Fixed `node_abi` versions for io.js 1.1.x -> 1.8.x (should be 43, but was stored as 42) (refs https://github.com/iojs/build/issues/94)
+
+## 0.6.6
+
+ - Updated with known io.js 2.0.0 version
+
+## 0.6.5
+
+ - Now respecting `npm_config_node_gyp` (https://github.com/npm/npm/pull/4887)
+ - Updated to semver@4.3.2
+ - Updated known node v0.12.x versions and io.js 1.x versions.
+
+## 0.6.4
+
+ - Improved support for `io.js` (@fengmk2)
+ - Test coverage improvements (@mikemorris)
+ - Fixed support for `--dist-url` that regressed in 0.6.3
+
+## 0.6.3
+
+ - Added support for passing raw options to node-gyp using `--` separator. Flags passed after
+ the `--` to `node-pre-gyp configure` will be passed directly to gyp while flags passed
+ after the `--` will be passed directly to make/visual studio.
+ - Added `node-pre-gyp configure` command to be able to call `node-gyp configure` directly
+ - Fix issue with require validation not working on windows 7 (@edgarsilva)
+
+## 0.6.2
+
+ - Support for io.js >= v1.0.2
+ - Deferred require of `request` and `tar` to help speed up command line usage of `node-pre-gyp`.
+
+## 0.6.1
+
+ - Fixed bundled `tar` version
+
+## 0.6.0
+
+ - BREAKING: node odd releases like v0.11.x now use `major.minor.patch` for `{node_abi}` instead of `NODE_MODULE_VERSION` (#124)
+ - Added support for `toolset` option in versioning. By default is an empty string but `--toolset` can be passed to publish or install to select alternative binaries that target a custom toolset like C++11. For example to target Visual Studio 2014 modules like node-sqlite3 use `--toolset=v140`.
+ - Added support for `--no-rollback` option to request that a failed binary test does not remove the binary module leaves it in place.
+ - Added support for `--update-binary` option to request an existing binary be re-installed and the check for a valid local module be skipped.
+ - Added support for passing build options from `npm` through `node-pre-gyp` to `node-gyp`: `--nodedir`, `--disturl`, `--python`, and `--msvs_version`
+
+## 0.5.31
+
+ - Added support for deducing node_abi for node.js runtime from previous release if the series is even
+ - Added support for --target=0.10.33
+
+## 0.5.30
+
+ - Repackaged with latest bundled deps
+
+## 0.5.29
+
+ - Added support for semver `build`.
+ - Fixed support for downloading from urls that include `+`.
+
+## 0.5.28
+
+ - Now reporting unix style paths only in reveal command
+
+## 0.5.27
+
+ - Fixed support for auto-detecting s3 bucket name when it contains `.` - @taavo
+ - Fixed support for installing when path contains a `'` - @halfdan
+ - Ported tests to mocha
+
+## 0.5.26
+
+ - Fix node-webkit support when `--target` option is not provided
+
+## 0.5.25
+
+ - Fix bundling of deps
+
+## 0.5.24
+
+ - Updated ABI crosswalk to incldue node v0.10.30 and v0.10.31
+
+## 0.5.23
+
+ - Added `reveal` command. Pass no options to get all versioning data as json. Pass a second arg to grab a single versioned property value
+ - Added support for `--silent` (shortcut for `--loglevel=silent`)
+
+## 0.5.22
+
+ - Fixed node-webkit versioning name (NOTE: node-webkit support still experimental)
+
+## 0.5.21
+
+ - New package to fix `shasum check failed` error with v0.5.20
+
+## 0.5.20
+
+ - Now versioning node-webkit binaries based on major.minor.patch - assuming no compatible ABI across versions (#90)
+
+## 0.5.19
+
+ - Updated to know about more node-webkit releases
+
+## 0.5.18
+
+ - Updated to know about more node-webkit releases
+
+## 0.5.17
+
+ - Updated to know about node v0.10.29 release
+
+## 0.5.16
+
+ - Now supporting all aws-sdk configuration parameters (http://docs.aws.amazon.com/AWSJavaScriptSDK/guide/node-configuring.html) (#86)
+
+## 0.5.15
+
+ - Fixed installation of windows packages sub directories on unix systems (#84)
+
+## 0.5.14
+
+ - Finished support for cross building using `--target_platform` option (#82)
+ - Now skipping binary validation on install if target arch/platform do not match the host.
+ - Removed multi-arch validing for OS X since it required a FAT node.js binary
+
+## 0.5.13
+
+ - Fix problem in 0.5.12 whereby the wrong versions of mkdirp and semver where bundled.
+
+## 0.5.12
+
+ - Improved support for node-webkit (@Mithgol)
+
+## 0.5.11
+
+ - Updated target versions listing
+
+## 0.5.10
+
+ - Fixed handling of `-debug` flag passed directory to node-pre-gyp (#72)
+ - Added optional second arg to `node_pre_gyp.find` to customize the default versioning options used to locate the runtime binary
+ - Failed install due to `testbinary` check failure no longer leaves behind binary (#70)
+
+## 0.5.9
+
+ - Fixed regression in `testbinary` command causing installs to fail on windows with 0.5.7 (#60)
+
+## 0.5.8
+
+ - Started bundling deps
+
+## 0.5.7
+
+ - Fixed the `testbinary` check, which is used to determine whether to re-download or source compile, to work even in complex dependency situations (#63)
+ - Exposed the internal `testbinary` command in node-pre-gyp command line tool
+ - Fixed minor bug so that `fallback_to_build` option is always respected
+
+## 0.5.6
+
+ - Added support for versioning on the `name` value in `package.json` (#57).
+ - Moved to using streams for reading tarball when publishing (#52)
+
+## 0.5.5
+
+ - Improved binary validation that also now works with node-webkit (@Mithgol)
+ - Upgraded test apps to work with node v0.11.x
+ - Improved test coverage
+
+## 0.5.4
+
+ - No longer depends on external install of node-gyp for compiling builds.
+
+## 0.5.3
+
+ - Reverted fix for debian/nodejs since it broke windows (#45)
+
+## 0.5.2
+
+ - Support for debian systems where the node binary is named `nodejs` (#45)
+ - Added `bin/node-pre-gyp.cmd` to be able to run command on windows locally (npm creates an .npm automatically when globally installed)
+ - Updated abi-crosswalk with node v0.10.26 entry.
+
+## 0.5.1
+
+ - Various minor bug fixes, several improving windows support for publishing.
+
+## 0.5.0
+
+ - Changed property names in `binary` object: now required are `module_name`, `module_path`, and `host`.
+ - Now `module_path` supports versioning, which allows developers to opt-in to using a versioned install path (#18).
+ - Added `remote_path` which also supports versioning.
+ - Changed `remote_uri` to `host`.
+
+## 0.4.2
+
+ - Added support for `--target` flag to request cross-compile against a specific node/node-webkit version.
+ - Added preliminary support for node-webkit
+ - Fixed support for `--target_arch` option being respected in all cases.
+
+## 0.4.1
+
+ - Fixed exception when only stderr is available in binary test (@bendi / #31)
+
+## 0.4.0
+
+ - Enforce only `https:` based remote publishing access.
+ - Added `node-pre-gyp info` command to display listing of published binaries
+ - Added support for changing the directory node-pre-gyp should build in with the `-C/--directory` option.
+ - Added support for S3 prefixes.
+
+## 0.3.1
+
+ - Added `unpublish` command.
+ - Fixed module path construction in tests.
+ - Added ability to disable falling back to build behavior via `npm install --fallback-to-build=false` which overrides setting in a depedencies package.json `install` target.
+
+## 0.3.0
+
+ - Support for packaging all files in `module_path` directory - see `app4` for example
+ - Added `testpackage` command.
+ - Changed `clean` command to only delete `.node` not entire `build` directory since node-gyp will handle that.
+ - `.node` modules must be in a folder of there own since tar-pack will remove everything when it unpacks.
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/LICENSE b/backend/node_modules/@mapbox/node-pre-gyp/LICENSE
new file mode 100644
index 0000000..8f5fce9
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/LICENSE
@@ -0,0 +1,27 @@
+Copyright (c), Mapbox
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ * Neither the name of node-pre-gyp nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/README.md b/backend/node_modules/@mapbox/node-pre-gyp/README.md
new file mode 100644
index 0000000..fcb7812
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/README.md
@@ -0,0 +1,742 @@
+# @mapbox/node-pre-gyp
+
+#### @mapbox/node-pre-gyp makes it easy to publish and install Node.js C++ addons from binaries
+
+[](https://travis-ci.com/mapbox/node-pre-gyp)
+[](https://ci.appveyor.com/project/Mapbox/node-pre-gyp)
+
+`@mapbox/node-pre-gyp` stands between [npm](https://github.com/npm/npm) and [node-gyp](https://github.com/Tootallnate/node-gyp) and offers a cross-platform method of binary deployment.
+
+### Special note on previous package
+
+On Feb 9th, 2021 `@mapbox/node-pre-gyp@1.0.0` was [released](./CHANGELOG.md). Older, unscoped versions that are not part of the `@mapbox` org are deprecated and only `@mapbox/node-pre-gyp` will see updates going forward. To upgrade to the new package do:
+
+```
+npm uninstall node-pre-gyp --save
+npm install @mapbox/node-pre-gyp --save
+```
+
+### Features
+
+ - A command line tool called `node-pre-gyp` that can install your package's C++ module from a binary.
+ - A variety of developer targeted commands for packaging, testing, and publishing binaries.
+ - A JavaScript module that can dynamically require your installed binary: `require('@mapbox/node-pre-gyp').find`
+
+For a hello world example of a module packaged with `node-pre-gyp` see <https://github.com/springmeyer/node-addon-example> and [the wiki ](https://github.com/mapbox/node-pre-gyp/wiki/Modules-using-node-pre-gyp) for real world examples.
+
+## Credits
+
+ - The module is modeled after [node-gyp](https://github.com/Tootallnate/node-gyp) by [@Tootallnate](https://github.com/Tootallnate)
+ - Motivation for initial development came from [@ErisDS](https://github.com/ErisDS) and the [Ghost Project](https://github.com/TryGhost/Ghost).
+ - Development is sponsored by [Mapbox](https://www.mapbox.com/)
+
+## FAQ
+
+See the [Frequently Ask Questions](https://github.com/mapbox/node-pre-gyp/wiki/FAQ).
+
+## Depends
+
+ - Node.js >= node v8.x
+
+## Install
+
+`node-pre-gyp` is designed to be installed as a local dependency of your Node.js C++ addon and accessed like:
+
+ ./node_modules/.bin/node-pre-gyp --help
+
+But you can also install it globally:
+
+ npm install @mapbox/node-pre-gyp -g
+
+## Usage
+
+### Commands
+
+View all possible commands:
+
+ node-pre-gyp --help
+
+- clean - Remove the entire folder containing the compiled .node module
+- install - Install pre-built binary for module
+- reinstall - Run "clean" and "install" at once
+- build - Compile the module by dispatching to node-gyp or nw-gyp
+- rebuild - Run "clean" and "build" at once
+- package - Pack binary into tarball
+- testpackage - Test that the staged package is valid
+- publish - Publish pre-built binary
+- unpublish - Unpublish pre-built binary
+- info - Fetch info on published binaries
+
+You can also chain commands:
+
+ node-pre-gyp clean build unpublish publish info
+
+### Options
+
+Options include:
+
+ - `-C/--directory`: run the command in this directory
+ - `--build-from-source`: build from source instead of using pre-built binary
+ - `--update-binary`: reinstall by replacing previously installed local binary with remote binary
+ - `--runtime=node-webkit`: customize the runtime: `node`, `electron` and `node-webkit` are the valid options
+ - `--fallback-to-build`: fallback to building from source if pre-built binary is not available
+ - `--target=0.4.0`: Pass the target node or node-webkit version to compile against
+ - `--target_arch=ia32`: Pass the target arch and override the host `arch`. Valid values are 'ia32','x64', or `arm`.
+ - `--target_platform=win32`: Pass the target platform and override the host `platform`. Valid values are `linux`, `darwin`, `win32`, `sunos`, `freebsd`, `openbsd`, and `aix`.
+
+Both `--build-from-source` and `--fallback-to-build` can be passed alone or they can provide values. You can pass `--fallback-to-build=false` to override the option as declared in package.json. In addition to being able to pass `--build-from-source` you can also pass `--build-from-source=myapp` where `myapp` is the name of your module.
+
+For example: `npm install --build-from-source=myapp`. This is useful if:
+
+ - `myapp` is referenced in the package.json of a larger app and therefore `myapp` is being installed as a dependency with `npm install`.
+ - The larger app also depends on other modules installed with `node-pre-gyp`
+ - You only want to trigger a source compile for `myapp` and the other modules.
+
+### Configuring
+
+This is a guide to configuring your module to use node-pre-gyp.
+
+#### 1) Add new entries to your `package.json`
+
+ - Add `@mapbox/node-pre-gyp` to `dependencies`
+ - Add `aws-sdk` as a `devDependency`
+ - Add a custom `install` script
+ - Declare a `binary` object
+
+This looks like:
+
+```js
+ "dependencies" : {
+ "@mapbox/node-pre-gyp": "1.x"
+ },
+ "devDependencies": {
+ "aws-sdk": "2.x"
+ }
+ "scripts": {
+ "install": "node-pre-gyp install --fallback-to-build"
+ },
+ "binary": {
+ "module_name": "your_module",
+ "module_path": "./lib/binding/",
+ "host": "https://your_module.s3-us-west-1.amazonaws.com"
+ }
+```
+
+For a full example see [node-addon-examples's package.json](https://github.com/springmeyer/node-addon-example/blob/master/package.json).
+
+Let's break this down:
+
+ - Dependencies need to list `node-pre-gyp`
+ - Your devDependencies should list `aws-sdk` so that you can run `node-pre-gyp publish` locally or a CI system. We recommend using `devDependencies` only since `aws-sdk` is large and not needed for `node-pre-gyp install` since it only uses http to fetch binaries
+ - Your `scripts` section should override the `install` target with `"install": "node-pre-gyp install --fallback-to-build"`. This allows node-pre-gyp to be used instead of the default npm behavior of always source compiling with `node-gyp` directly.
+ - Your package.json should contain a `binary` section describing key properties you provide to allow node-pre-gyp to package optimally. They are detailed below.
+
+Note: in the past we recommended putting `@mapbox/node-pre-gyp` in the `bundledDependencies`, but we no longer recommend this. In the past there were npm bugs (with node versions 0.10.x) that could lead to node-pre-gyp not being available at the right time during install (unless we bundled). This should no longer be the case. Also, for a time we recommended using `"preinstall": "npm install @mapbox/node-pre-gyp"` as an alternative method to avoid needing to bundle. But this did not behave predictably across all npm versions - see https://github.com/mapbox/node-pre-gyp/issues/260 for the details. So we do not recommend using `preinstall` to install `@mapbox/node-pre-gyp`. More history on this at https://github.com/strongloop/fsevents/issues/157#issuecomment-265545908.
+
+##### The `binary` object has three required properties
+
+###### module_name
+
+The name of your native node module. This value must:
+
+ - Match the name passed to [the NODE_MODULE macro](http://nodejs.org/api/addons.html#addons_hello_world)
+ - Must be a valid C variable name (e.g. it cannot contain `-`)
+ - Should not include the `.node` extension.
+
+###### module_path
+
+The location your native module is placed after a build. This should be an empty directory without other Javascript files. This entire directory will be packaged in the binary tarball. When installing from a remote package this directory will be overwritten with the contents of the tarball.
+
+Note: This property supports variables based on [Versioning](#versioning).
+
+###### host
+
+A url to the remote location where you've published tarball binaries (must be `https` not `http`).
+
+It is highly recommended that you use Amazon S3. The reasons are:
+
+ - Various node-pre-gyp commands like `publish` and `info` only work with an S3 host.
+ - S3 is a very solid hosting platform for distributing large files.
+ - We provide detail documentation for using [S3 hosting](#s3-hosting) with node-pre-gyp.
+
+Why then not require S3? Because while some applications using node-pre-gyp need to distribute binaries as large as 20-30 MB, others might have very small binaries and might wish to store them in a GitHub repo. This is not recommended, but if an author really wants to host in a non-S3 location then it should be possible.
+
+It should also be mentioned that there is an optional and entirely separate npm module called [node-pre-gyp-github](https://github.com/bchr02/node-pre-gyp-github) which is intended to complement node-pre-gyp and be installed along with it. It provides the ability to store and publish your binaries within your repositories GitHub Releases if you would rather not use S3 directly. Installation and usage instructions can be found [here](https://github.com/bchr02/node-pre-gyp-github), but the basic premise is that instead of using the ```node-pre-gyp publish``` command you would use ```node-pre-gyp-github publish```.
+
+##### The `binary` object other optional S3 properties
+
+If you are not using a standard s3 path like `bucket_name.s3(.-)region.amazonaws.com`, you might get an error on `publish` because node-pre-gyp extracts the region and bucket from the `host` url. For example, you may have an on-premises s3-compatible storage server, or may have configured a specific dns redirecting to an s3 endpoint. In these cases, you can explicitly set the `region` and `bucket` properties to tell node-pre-gyp to use these values instead of guessing from the `host` property. The following values can be used in the `binary` section:
+
+###### host
+
+The url to the remote server root location (must be `https` not `http`).
+
+###### bucket
+
+The bucket name where your tarball binaries should be located.
+
+###### region
+
+Your S3 server region.
+
+###### s3ForcePathStyle
+
+Set `s3ForcePathStyle` to true if the endpoint url should not be prefixed with the bucket name. If false (default), the server endpoint would be constructed as `bucket_name.your_server.com`.
+
+##### The `binary` object has optional properties
+
+###### remote_path
+
+It **is recommended** that you customize this property. This is an extra path to use for publishing and finding remote tarballs. The default value for `remote_path` is `""` meaning that if you do not provide it then all packages will be published at the base of the `host`. It is recommended to provide a value like `./{name}/v{version}` to help organize remote packages in the case that you choose to publish multiple node addons to the same `host`.
+
+Note: This property supports variables based on [Versioning](#versioning).
+
+###### package_name
+
+It is **not recommended** to override this property unless you are also overriding the `remote_path`. This is the versioned name of the remote tarball containing the binary `.node` module and any supporting files you've placed inside the `module_path` directory. Unless you specify `package_name` in your `package.json` then it defaults to `{module_name}-v{version}-{node_abi}-{platform}-{arch}.tar.gz` which allows your binary to work across node versions, platforms, and architectures. If you are using `remote_path` that is also versioned by `./{module_name}/v{version}` then you could remove these variables from the `package_name` and just use: `{node_abi}-{platform}-{arch}.tar.gz`. Then your remote tarball will be looked up at, for example, `https://example.com/your-module/v0.1.0/node-v11-linux-x64.tar.gz`.
+
+Avoiding the version of your module in the `package_name` and instead only embedding in a directory name can be useful when you want to make a quick tag of your module that does not change any C++ code. In this case you can just copy binaries to the new version behind the scenes like:
+
+```sh
+aws s3 sync --acl public-read s3://mapbox-node-binary/sqlite3/v3.0.3/ s3://mapbox-node-binary/sqlite3/v3.0.4/
+```
+
+Note: This property supports variables based on [Versioning](#versioning).
+
+#### 2) Add a new target to binding.gyp
+
+`node-pre-gyp` calls out to `node-gyp` to compile the module and passes variables along like [module_name](#module_name) and [module_path](#module_path).
+
+A new target must be added to `binding.gyp` that moves the compiled `.node` module from `./build/Release/module_name.node` into the directory specified by `module_path`.
+
+Add a target like this at the end of your `targets` list:
+
+```js
+ {
+ "target_name": "action_after_build",
+ "type": "none",
+ "dependencies": [ "<(module_name)" ],
+ "copies": [
+ {
+ "files": [ "<(PRODUCT_DIR)/<(module_name).node" ],
+ "destination": "<(module_path)"
+ }
+ ]
+ }
+```
+
+For a full example see [node-addon-example's binding.gyp](https://github.com/springmeyer/node-addon-example/blob/2ff60a8ded7f042864ad21db00c3a5a06cf47075/binding.gyp).
+
+#### 3) Dynamically require your `.node`
+
+Inside the main js file that requires your addon module you are likely currently doing:
+
+```js
+var binding = require('../build/Release/binding.node');
+```
+
+or:
+
+```js
+var bindings = require('./bindings')
+```
+
+Change those lines to:
+
+```js
+var binary = require('@mapbox/node-pre-gyp');
+var path = require('path');
+var binding_path = binary.find(path.resolve(path.join(__dirname,'./package.json')));
+var binding = require(binding_path);
+```
+
+For a full example see [node-addon-example's index.js](https://github.com/springmeyer/node-addon-example/blob/2ff60a8ded7f042864ad21db00c3a5a06cf47075/index.js#L1-L4)
+
+#### 4) Build and package your app
+
+Now build your module from source:
+
+ npm install --build-from-source
+
+The `--build-from-source` tells `node-pre-gyp` to not look for a remote package and instead dispatch to node-gyp to build.
+
+Now `node-pre-gyp` should now also be installed as a local dependency so the command line tool it offers can be found at `./node_modules/.bin/node-pre-gyp`.
+
+#### 5) Test
+
+Now `npm test` should work just as it did before.
+
+#### 6) Publish the tarball
+
+Then package your app:
+
+ ./node_modules/.bin/node-pre-gyp package
+
+Once packaged, now you can publish:
+
+ ./node_modules/.bin/node-pre-gyp publish
+
+Currently the `publish` command pushes your binary to S3. This requires:
+
+ - You have installed `aws-sdk` with `npm install aws-sdk`
+ - You have created a bucket already.
+ - The `host` points to an S3 http or https endpoint.
+ - You have configured node-pre-gyp to read your S3 credentials (see [S3 hosting](#s3-hosting) for details).
+
+You can also host your binaries elsewhere. To do this requires:
+
+ - You manually publish the binary created by the `package` command to an `https` endpoint
+ - Ensure that the `host` value points to your custom `https` endpoint.
+
+#### 7) Automate builds
+
+Now you need to publish builds for all the platforms and node versions you wish to support. This is best automated.
+
+ - See [Appveyor Automation](#appveyor-automation) for how to auto-publish builds on Windows.
+ - See [Travis Automation](#travis-automation) for how to auto-publish builds on OS X and Linux.
+
+#### 8) You're done!
+
+Now publish your module to the npm registry. Users will now be able to install your module from a binary.
+
+What will happen is this:
+
+1. `npm install <your package>` will pull from the npm registry
+2. npm will run the `install` script which will call out to `node-pre-gyp`
+3. `node-pre-gyp` will fetch the binary `.node` module and unpack in the right place
+4. Assuming that all worked, you are done
+
+If a a binary was not available for a given platform and `--fallback-to-build` was used then `node-gyp rebuild` will be called to try to source compile the module.
+
+#### 9) One more option
+
+It may be that you want to work with two s3 buckets, one for staging and one for production; this
+arrangement makes it less likely to accidentally overwrite a production binary. It also allows the production
+environment to have more restrictive permissions than staging while still enabling publishing when
+developing and testing.
+
+The binary.host property can be set at execution time. In order to do so all of the following conditions
+must be true.
+
+- binary.host is falsey or not present
+- binary.staging_host is not empty
+- binary.production_host is not empty
+
+If any of these checks fail then the operation will not perform execution time determination of the s3 target.
+
+If the command being executed is either "publish" or "unpublish" then the default is set to `binary.staging_host`. In all other cases
+the default is `binary.production_host`.
+
+The command-line options `--s3_host=staging` or `--s3_host=production` override the default. If `s3_host`
+is present and not `staging` or `production` an exception is thrown.
+
+This allows installing from staging by specifying `--s3_host=staging`. And it requires specifying
+`--s3_option=production` in order to publish to, or unpublish from, production, making accidental errors less likely.
+
+## Node-API Considerations
+
+[Node-API](https://nodejs.org/api/n-api.html#n_api_node_api), which was previously known as N-API, is an ABI-stable alternative to previous technologies such as [nan](https://github.com/nodejs/nan) which are tied to a specific Node runtime engine. Node-API is Node runtime engine agnostic and guarantees modules created today will continue to run, without changes, into the future.
+
+Using `node-pre-gyp` with Node-API projects requires a handful of additional configuration values and imposes some additional requirements.
+
+The most significant difference is that an Node-API module can be coded to target multiple Node-API versions. Therefore, an Node-API module must declare in its `package.json` file which Node-API versions the module is designed to run against. In addition, since multiple builds may be required for a single module, path and file names must be specified in way that avoids naming conflicts.
+
+### The `napi_versions` array property
+
+A Node-API module must declare in its `package.json` file, the Node-API versions the module is intended to support. This is accomplished by including an `napi-versions` array property in the `binary` object. For example:
+
+```js
+"binary": {
+ "module_name": "your_module",
+ "module_path": "your_module_path",
+ "host": "https://your_bucket.s3-us-west-1.amazonaws.com",
+ "napi_versions": [1,3]
+ }
+```
+
+If the `napi_versions` array property is *not* present, `node-pre-gyp` operates as it always has. Including the `napi_versions` array property instructs `node-pre-gyp` that this is a Node-API module build.
+
+When the `napi_versions` array property is present, `node-pre-gyp` fires off multiple operations, one for each of the Node-API versions in the array. In the example above, two operations are initiated, one for Node-API version 1 and second for Node-API version 3. How this version number is communicated is described next.
+
+### The `napi_build_version` value
+
+For each of the Node-API module operations `node-pre-gyp` initiates, it ensures that the `napi_build_version` is set appropriately.
+
+This value is of importance in two areas:
+
+1. The C/C++ code which needs to know against which Node-API version it should compile.
+2. `node-pre-gyp` itself which must assign appropriate path and file names to avoid collisions.
+
+### Defining `NAPI_VERSION` for the C/C++ code
+
+The `napi_build_version` value is communicated to the C/C++ code by adding this code to the `binding.gyp` file:
+
+```
+"defines": [
+ "NAPI_VERSION=<(napi_build_version)",
+]
+```
+
+This ensures that `NAPI_VERSION`, an integer value, is declared appropriately to the C/C++ code for each build.
+
+> Note that earlier versions of this document recommended defining the symbol `NAPI_BUILD_VERSION`. `NAPI_VERSION` is preferred because it used by the Node-API C/C++ headers to configure the specific Node-API versions being requested.
+
+### Path and file naming requirements in `package.json`
+
+Since `node-pre-gyp` fires off multiple operations for each request, it is essential that path and file names be created in such a way as to avoid collisions. This is accomplished by imposing additional path and file naming requirements.
+
+Specifically, when performing Node-API builds, the `{napi_build_version}` text configuration value *must* be present in the `module_path` property. In addition, the `{napi_build_version}` text configuration value *must* be present in either the `remote_path` or `package_name` property. (No problem if it's in both.)
+
+Here's an example:
+
+```js
+"binary": {
+ "module_name": "your_module",
+ "module_path": "./lib/binding/napi-v{napi_build_version}",
+ "remote_path": "./{module_name}/v{version}/{configuration}/",
+ "package_name": "{platform}-{arch}-napi-v{napi_build_version}.tar.gz",
+ "host": "https://your_bucket.s3-us-west-1.amazonaws.com",
+ "napi_versions": [1,3]
+ }
+```
+
+## Supporting both Node-API and NAN builds
+
+You may have a legacy native add-on that you wish to continue supporting for those versions of Node that do not support Node-API, as you add Node-API support for later Node versions. This can be accomplished by specifying the `node_napi_label` configuration value in the package.json `binary.package_name` property.
+
+Placing the configuration value `node_napi_label` in the package.json `binary.package_name` property instructs `node-pre-gyp` to build all viable Node-API binaries supported by the current Node instance. If the current Node instance does not support Node-API, `node-pre-gyp` will request a traditional, non-Node-API build.
+
+The configuration value `node_napi_label` is set by `node-pre-gyp` to the type of build created, `napi` or `node`, and the version number. For Node-API builds, the string contains the Node-API version nad has values like `napi-v3`. For traditional, non-Node-API builds, the string contains the ABI version with values like `node-v46`.
+
+Here's how the `binary` configuration above might be changed to support both Node-API and NAN builds:
+
+```js
+"binary": {
+ "module_name": "your_module",
+ "module_path": "./lib/binding/{node_napi_label}",
+ "remote_path": "./{module_name}/v{version}/{configuration}/",
+ "package_name": "{platform}-{arch}-{node_napi_label}.tar.gz",
+ "host": "https://your_bucket.s3-us-west-1.amazonaws.com",
+ "napi_versions": [1,3]
+ }
+```
+
+The C/C++ symbol `NAPI_VERSION` can be used to distinguish Node-API and non-Node-API builds. The value of `NAPI_VERSION` is set to the integer Node-API version for Node-API builds and is set to `0` for non-Node-API builds.
+
+For example:
+
+```C
+#if NAPI_VERSION
+// Node-API code goes here
+#else
+// NAN code goes here
+#endif
+```
+
+### Two additional configuration values
+
+The following two configuration values, which were implemented in previous versions of `node-pre-gyp`, continue to exist, but have been replaced by the `node_napi_label` configuration value described above.
+
+1. `napi_version` If Node-API is supported by the currently executing Node instance, this value is the Node-API version number supported by Node. If Node-API is not supported, this value is an empty string.
+
+2. `node_abi_napi` If the value returned for `napi_version` is non empty, this value is `'napi'`. If the value returned for `napi_version` is empty, this value is the value returned for `node_abi`.
+
+These values are present for use in the `binding.gyp` file and may be used as `{napi_version}` and `{node_abi_napi}` for text substituion in the `binary` properties of the `package.json` file.
+
+## S3 Hosting
+
+You can host wherever you choose but S3 is cheap, `node-pre-gyp publish` expects it, and S3 can be integrated well with [Travis.ci](http://travis-ci.org) to automate builds for OS X and Ubuntu, and with [Appveyor](http://appveyor.com) to automate builds for Windows. Here is an approach to do this:
+
+First, get setup locally and test the workflow:
+
+#### 1) Create an S3 bucket
+
+And have your **key** and **secret key** ready for writing to the bucket.
+
+It is recommended to create a IAM user with a policy that only gives permissions to the specific bucket you plan to publish to. This can be done in the [IAM console](https://console.aws.amazon.com/iam/) by: 1) adding a new user, 2) choosing `Attach User Policy`, 3) Using the `Policy Generator`, 4) selecting `Amazon S3` for the service, 5) adding the actions: `DeleteObject`, `GetObject`, `GetObjectAcl`, `ListBucket`, `HeadBucket`, `PutObject`, `PutObjectAcl`, 6) adding an ARN of `arn:aws:s3:::bucket/*` (replacing `bucket` with your bucket name), and finally 7) clicking `Add Statement` and saving the policy. It should generate a policy like:
+
+```js
+{
+ "Version": "2012-10-17",
+ "Statement": [
+ {
+ "Sid": "objects",
+ "Effect": "Allow",
+ "Action": [
+ "s3:PutObject",
+ "s3:GetObjectAcl",
+ "s3:GetObject",
+ "s3:DeleteObject",
+ "s3:PutObjectAcl"
+ ],
+ "Resource": "arn:aws:s3:::your-bucket-name/*"
+ },
+ {
+ "Sid": "bucket",
+ "Effect": "Allow",
+ "Action": "s3:ListBucket",
+ "Resource": "arn:aws:s3:::your-bucket-name"
+ },
+ {
+ "Sid": "buckets",
+ "Effect": "Allow",
+ "Action": "s3:HeadBucket",
+ "Resource": "*"
+ }
+ ]
+}
+```
+
+#### 2) Install node-pre-gyp
+
+Either install it globally:
+
+ npm install node-pre-gyp -g
+
+Or put the local version on your PATH
+
+ export PATH=`pwd`/node_modules/.bin/:$PATH
+
+#### 3) Configure AWS credentials
+
+It is recommended to configure the AWS JS SDK v2 used internally by `node-pre-gyp` by setting these environment variables:
+
+- AWS_ACCESS_KEY_ID
+- AWS_SECRET_ACCESS_KEY
+
+But also you can also use the `Shared Config File` mentioned [in the AWS JS SDK v2 docs](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/configuring-the-jssdk.html)
+
+#### 4) Package and publish your build
+
+Install the `aws-sdk`:
+
+ npm install aws-sdk
+
+Then publish:
+
+ node-pre-gyp package publish
+
+Note: if you hit an error like `Hostname/IP doesn't match certificate's altnames` it may mean that you need to provide the `region` option in your config.
+
+## Appveyor Automation
+
+[Appveyor](http://www.appveyor.com/) can build binaries and publish the results per commit and supports:
+
+ - Windows Visual Studio 2013 and related compilers
+ - Both 64 bit (x64) and 32 bit (x86) build configurations
+ - Multiple Node.js versions
+
+For an example of doing this see [node-sqlite3's appveyor.yml](https://github.com/mapbox/node-sqlite3/blob/master/appveyor.yml).
+
+Below is a guide to getting set up:
+
+#### 1) Create a free Appveyor account
+
+Go to https://ci.appveyor.com/signup/free and sign in with your GitHub account.
+
+#### 2) Create a new project
+
+Go to https://ci.appveyor.com/projects/new and select the GitHub repo for your module
+
+#### 3) Add appveyor.yml and push it
+
+Once you have committed an `appveyor.yml` ([appveyor.yml reference](http://www.appveyor.com/docs/appveyor-yml)) to your GitHub repo and pushed it AppVeyor should automatically start building your project.
+
+#### 4) Create secure variables
+
+Encrypt your S3 AWS keys by going to <https://ci.appveyor.com/tools/encrypt> and hitting the `encrypt` button.
+
+Then paste the result into your `appveyor.yml`
+
+```yml
+environment:
+ AWS_ACCESS_KEY_ID:
+ secure: Dn9HKdLNYvDgPdQOzRq/DqZ/MPhjknRHB1o+/lVU8MA=
+ AWS_SECRET_ACCESS_KEY:
+ secure: W1rwNoSnOku1r+28gnoufO8UA8iWADmL1LiiwH9IOkIVhDTNGdGPJqAlLjNqwLnL
+```
+
+NOTE: keys are per account but not per repo (this is difference than Travis where keys are per repo but not related to the account used to encrypt them).
+
+#### 5) Hook up publishing
+
+Just put `node-pre-gyp package publish` in your `appveyor.yml` after `npm install`.
+
+#### 6) Publish when you want
+
+You might wish to publish binaries only on a specific commit. To do this you could borrow from the [Travis CI idea of commit keywords](http://about.travis-ci.org/docs/user/how-to-skip-a-build/) and add special handling for commit messages with `[publish binary]`:
+
+ SET CM=%APPVEYOR_REPO_COMMIT_MESSAGE%
+ if not "%CM%" == "%CM:[publish binary]=%" node-pre-gyp --msvs_version=2013 publish
+
+If your commit message contains special characters (e.g. `&`) this method might fail. An alternative is to use PowerShell, which gives you additional possibilities, like ignoring case by using `ToLower()`:
+
+ ps: if($env:APPVEYOR_REPO_COMMIT_MESSAGE.ToLower().Contains('[publish binary]')) { node-pre-gyp --msvs_version=2013 publish }
+
+Remember this publishing is not the same as `npm publish`. We're just talking about the binary module here and not your entire npm package.
+
+## Travis Automation
+
+[Travis](https://travis-ci.org/) can push to S3 after a successful build and supports both:
+
+ - Ubuntu Precise and OS X (64 bit)
+ - Multiple Node.js versions
+
+For an example of doing this see [node-add-example's .travis.yml](https://github.com/springmeyer/node-addon-example/blob/2ff60a8ded7f042864ad21db00c3a5a06cf47075/.travis.yml).
+
+Note: if you need 32 bit binaries, this can be done from a 64 bit Travis machine. See [the node-sqlite3 scripts for an example of doing this](https://github.com/mapbox/node-sqlite3/blob/bae122aa6a2b8a45f6b717fab24e207740e32b5d/scripts/build_against_node.sh#L54-L74).
+
+Below is a guide to getting set up:
+
+#### 1) Install the Travis gem
+
+ gem install travis
+
+#### 2) Create secure variables
+
+Make sure you run this command from within the directory of your module.
+
+Use `travis-encrypt` like:
+
+ travis encrypt AWS_ACCESS_KEY_ID=${node_pre_gyp_accessKeyId}
+ travis encrypt AWS_SECRET_ACCESS_KEY=${node_pre_gyp_secretAccessKey}
+
+Then put those values in your `.travis.yml` like:
+
+```yaml
+env:
+ global:
+ - secure: F+sEL/v56CzHqmCSSES4pEyC9NeQlkoR0Gs/ZuZxX1ytrj8SKtp3MKqBj7zhIclSdXBz4Ev966Da5ctmcTd410p0b240MV6BVOkLUtkjZJyErMBOkeb8n8yVfSoeMx8RiIhBmIvEn+rlQq+bSFis61/JkE9rxsjkGRZi14hHr4M=
+ - secure: o2nkUQIiABD139XS6L8pxq3XO5gch27hvm/gOdV+dzNKc/s2KomVPWcOyXNxtJGhtecAkABzaW8KHDDi5QL1kNEFx6BxFVMLO8rjFPsMVaBG9Ks6JiDQkkmrGNcnVdxI/6EKTLHTH5WLsz8+J7caDBzvKbEfTux5EamEhxIWgrI=
+```
+
+More details on Travis encryption at http://about.travis-ci.org/docs/user/encryption-keys/.
+
+#### 3) Hook up publishing
+
+Just put `node-pre-gyp package publish` in your `.travis.yml` after `npm install`.
+
+##### OS X publishing
+
+If you want binaries for OS X in addition to linux you can enable [multi-os for Travis](http://docs.travis-ci.com/user/multi-os/#Setting-.travis.yml)
+
+Use a configuration like:
+
+```yml
+
+language: cpp
+
+os:
+- linux
+- osx
+
+env:
+ matrix:
+ - NODE_VERSION="4"
+ - NODE_VERSION="6"
+
+before_install:
+- rm -rf ~/.nvm/ && git clone --depth 1 https://github.com/creationix/nvm.git ~/.nvm
+- source ~/.nvm/nvm.sh
+- nvm install $NODE_VERSION
+- nvm use $NODE_VERSION
+```
+
+See [Travis OS X Gotchas](#travis-os-x-gotchas) for why we replace `language: node_js` and `node_js:` sections with `language: cpp` and a custom matrix.
+
+Also create platform specific sections for any deps that need install. For example if you need libpng:
+
+```yml
+- if [ $(uname -s) == 'Linux' ]; then apt-get install libpng-dev; fi;
+- if [ $(uname -s) == 'Darwin' ]; then brew install libpng; fi;
+```
+
+For detailed multi-OS examples see [node-mapnik](https://github.com/mapnik/node-mapnik/blob/master/.travis.yml) and [node-sqlite3](https://github.com/mapbox/node-sqlite3/blob/master/.travis.yml).
+
+##### Travis OS X Gotchas
+
+First, unlike the Travis Linux machines, the OS X machines do not put `node-pre-gyp` on PATH by default. To do so you will need to:
+
+```sh
+export PATH=$(pwd)/node_modules/.bin:${PATH}
+```
+
+Second, the OS X machines do not support using a matrix for installing different Node.js versions. So you need to bootstrap the installation of Node.js in a cross platform way.
+
+By doing:
+
+```yml
+env:
+ matrix:
+ - NODE_VERSION="4"
+ - NODE_VERSION="6"
+
+before_install:
+ - rm -rf ~/.nvm/ && git clone --depth 1 https://github.com/creationix/nvm.git ~/.nvm
+ - source ~/.nvm/nvm.sh
+ - nvm install $NODE_VERSION
+ - nvm use $NODE_VERSION
+```
+
+You can easily recreate the previous behavior of this matrix:
+
+```yml
+node_js:
+ - "4"
+ - "6"
+```
+
+#### 4) Publish when you want
+
+You might wish to publish binaries only on a specific commit. To do this you could borrow from the [Travis CI idea of commit keywords](http://about.travis-ci.org/docs/user/how-to-skip-a-build/) and add special handling for commit messages with `[publish binary]`:
+
+ COMMIT_MESSAGE=$(git log --format=%B --no-merges -n 1 | tr -d '\n')
+ if [[ ${COMMIT_MESSAGE} =~ "[publish binary]" ]]; then node-pre-gyp publish; fi;
+
+Then you can trigger new binaries to be built like:
+
+ git commit -a -m "[publish binary]"
+
+Or, if you don't have any changes to make simply run:
+
+ git commit --allow-empty -m "[publish binary]"
+
+WARNING: if you are working in a pull request and publishing binaries from there then you will want to avoid double publishing when Travis CI builds both the `push` and `pr`. You only want to run the publish on the `push` commit. See https://github.com/Project-OSRM/node-osrm/blob/8eb837abe2e2e30e595093d16e5354bc5c573575/scripts/is_pr_merge.sh which is called from https://github.com/Project-OSRM/node-osrm/blob/8eb837abe2e2e30e595093d16e5354bc5c573575/scripts/publish.sh for an example of how to do this.
+
+Remember this publishing is not the same as `npm publish`. We're just talking about the binary module here and not your entire npm package. To automate the publishing of your entire package to npm on Travis see http://about.travis-ci.org/docs/user/deployment/npm/
+
+# Versioning
+
+The `binary` properties of `module_path`, `remote_path`, and `package_name` support variable substitution. The strings are evaluated by `node-pre-gyp` depending on your system and any custom build flags you passed.
+
+ - `node_abi`: The node C++ `ABI` number. This value is available in Javascript as `process.versions.modules` as of [`>= v0.10.4 >= v0.11.7`](https://github.com/joyent/node/commit/ccabd4a6fa8a6eb79d29bc3bbe9fe2b6531c2d8e) and in C++ as the `NODE_MODULE_VERSION` define much earlier. For versions of Node before this was available we fallback to the V8 major and minor version.
+ - `platform` matches node's `process.platform` like `linux`, `darwin`, and `win32` unless the user passed the `--target_platform` option to override.
+ - `arch` matches node's `process.arch` like `x64` or `ia32` unless the user passes the `--target_arch` option to override.
+ - `libc` matches `require('detect-libc').family` like `glibc` or `musl` unless the user passes the `--target_libc` option to override.
+ - `configuration` - Either 'Release' or 'Debug' depending on if `--debug` is passed during the build.
+ - `module_name` - the `binary.module_name` attribute from `package.json`.
+ - `version` - the semver `version` value for your module from `package.json` (NOTE: ignores the `semver.build` property).
+ - `major`, `minor`, `patch`, and `prelease` match the individual semver values for your module's `version`
+ - `build` - the sevmer `build` value. For example it would be `this.that` if your package.json `version` was `v1.0.0+this.that`
+ - `prerelease` - the semver `prerelease` value. For example it would be `alpha.beta` if your package.json `version` was `v1.0.0-alpha.beta`
+
+
+The options are visible in the code at <https://github.com/mapbox/node-pre-gyp/blob/612b7bca2604508d881e1187614870ba19a7f0c5/lib/util/versioning.js#L114-L127>
+
+# Download binary files from a mirror
+
+S3 is broken in China for the well known reason.
+
+Using the `npm` config argument: `--{module_name}_binary_host_mirror` can download binary files through a mirror, `-` in `module_name` will be replaced with `_`.
+
+e.g.: Install [v8-profiler](https://www.npmjs.com/package/v8-profiler) from `npm`.
+
+```bash
+$ npm install v8-profiler --profiler_binary_host_mirror=https://npm.taobao.org/mirrors/node-inspector/
+```
+
+e.g.: Install [canvas-prebuilt](https://www.npmjs.com/package/canvas-prebuilt) from `npm`.
+
+```bash
+$ npm install canvas-prebuilt --canvas_prebuilt_binary_host_mirror=https://npm.taobao.org/mirrors/canvas-prebuilt/
+```
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp b/backend/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp
new file mode 100755
index 0000000..c38d34d
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp
@@ -0,0 +1,4 @@
+#!/usr/bin/env node
+'use strict';
+
+require('../lib/main');
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp.cmd b/backend/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp.cmd
new file mode 100644
index 0000000..46e14b5
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/bin/node-pre-gyp.cmd
@@ -0,0 +1,2 @@
+@echo off
+node "%~dp0\node-pre-gyp" %*
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/contributing.md b/backend/node_modules/@mapbox/node-pre-gyp/contributing.md
new file mode 100644
index 0000000..4038fa6
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/contributing.md
@@ -0,0 +1,10 @@
+# Contributing
+
+
+### Releasing a new version:
+
+- Ensure tests are passing on travis and appveyor
+- Run `node scripts/abi_crosswalk.js` and commit any changes
+- Update the changelog
+- Tag a new release like: `git tag -a v0.6.34 -m "tagging v0.6.34" && git push --tags`
+- Run `npm publish`
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/build.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/build.js
new file mode 100644
index 0000000..e8a1459
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/build.js
@@ -0,0 +1,51 @@
+'use strict';
+
+module.exports = exports = build;
+
+exports.usage = 'Attempts to compile the module by dispatching to node-gyp or nw-gyp';
+
+const napi = require('./util/napi.js');
+const compile = require('./util/compile.js');
+const handle_gyp_opts = require('./util/handle_gyp_opts.js');
+const configure = require('./configure.js');
+
+function do_build(gyp, argv, callback) {
+ handle_gyp_opts(gyp, argv, (err, result) => {
+ let final_args = ['build'].concat(result.gyp).concat(result.pre);
+ if (result.unparsed.length > 0) {
+ final_args = final_args.
+ concat(['--']).
+ concat(result.unparsed);
+ }
+ if (!err && result.opts.napi_build_version) {
+ napi.swap_build_dir_in(result.opts.napi_build_version);
+ }
+ compile.run_gyp(final_args, result.opts, (err2) => {
+ if (result.opts.napi_build_version) {
+ napi.swap_build_dir_out(result.opts.napi_build_version);
+ }
+ return callback(err2);
+ });
+ });
+}
+
+function build(gyp, argv, callback) {
+
+ // Form up commands to pass to node-gyp:
+ // We map `node-pre-gyp build` to `node-gyp configure build` so that we do not
+ // trigger a clean and therefore do not pay the penalty of a full recompile
+ if (argv.length && (argv.indexOf('rebuild') > -1)) {
+ argv.shift(); // remove `rebuild`
+ // here we map `node-pre-gyp rebuild` to `node-gyp rebuild` which internally means
+ // "clean + configure + build" and triggers a full recompile
+ compile.run_gyp(['clean'], {}, (err3) => {
+ if (err3) return callback(err3);
+ configure(gyp, argv, (err4) => {
+ if (err4) return callback(err4);
+ return do_build(gyp, argv, callback);
+ });
+ });
+ } else {
+ return do_build(gyp, argv, callback);
+ }
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/clean.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/clean.js
new file mode 100644
index 0000000..e693392
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/clean.js
@@ -0,0 +1,31 @@
+'use strict';
+
+module.exports = exports = clean;
+
+exports.usage = 'Removes the entire folder containing the compiled .node module';
+
+const rm = require('rimraf');
+const exists = require('fs').exists || require('path').exists;
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const path = require('path');
+
+function clean(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+ const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+ const to_delete = opts.module_path;
+ if (!to_delete) {
+ return callback(new Error('module_path is empty, refusing to delete'));
+ } else if (path.normalize(to_delete) === path.normalize(process.cwd())) {
+ return callback(new Error('module_path is not set, refusing to delete'));
+ } else {
+ exists(to_delete, (found) => {
+ if (found) {
+ if (!gyp.opts.silent_clean) console.log('[' + package_json.name + '] Removing "%s"', to_delete);
+ return rm(to_delete, callback);
+ }
+ return callback();
+ });
+ }
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/configure.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/configure.js
new file mode 100644
index 0000000..1337c0c
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/configure.js
@@ -0,0 +1,52 @@
+'use strict';
+
+module.exports = exports = configure;
+
+exports.usage = 'Attempts to configure node-gyp or nw-gyp build';
+
+const napi = require('./util/napi.js');
+const compile = require('./util/compile.js');
+const handle_gyp_opts = require('./util/handle_gyp_opts.js');
+
+function configure(gyp, argv, callback) {
+ handle_gyp_opts(gyp, argv, (err, result) => {
+ let final_args = result.gyp.concat(result.pre);
+ // pull select node-gyp configure options out of the npm environ
+ const known_gyp_args = ['dist-url', 'python', 'nodedir', 'msvs_version'];
+ known_gyp_args.forEach((key) => {
+ const val = gyp.opts[key] || gyp.opts[key.replace('-', '_')];
+ if (val) {
+ final_args.push('--' + key + '=' + val);
+ }
+ });
+ // --ensure=false tell node-gyp to re-install node development headers
+ // but it is only respected by node-gyp install, so we have to call install
+ // as a separate step if the user passes it
+ if (gyp.opts.ensure === false) {
+ const install_args = final_args.concat(['install', '--ensure=false']);
+ compile.run_gyp(install_args, result.opts, (err2) => {
+ if (err2) return callback(err2);
+ if (result.unparsed.length > 0) {
+ final_args = final_args.
+ concat(['--']).
+ concat(result.unparsed);
+ }
+ compile.run_gyp(['configure'].concat(final_args), result.opts, (err3) => {
+ return callback(err3);
+ });
+ });
+ } else {
+ if (result.unparsed.length > 0) {
+ final_args = final_args.
+ concat(['--']).
+ concat(result.unparsed);
+ }
+ compile.run_gyp(['configure'].concat(final_args), result.opts, (err4) => {
+ if (!err4 && result.opts.napi_build_version) {
+ napi.swap_build_dir_out(result.opts.napi_build_version);
+ }
+ return callback(err4);
+ });
+ }
+ });
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/info.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/info.js
new file mode 100644
index 0000000..ba22f32
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/info.js
@@ -0,0 +1,38 @@
+'use strict';
+
+module.exports = exports = info;
+
+exports.usage = 'Lists all published binaries (requires aws-sdk)';
+
+const log = require('npmlog');
+const versioning = require('./util/versioning.js');
+const s3_setup = require('./util/s3_setup.js');
+
+function info(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ const opts = versioning.evaluate(package_json, gyp.opts);
+ const config = {};
+ s3_setup.detect(opts, config);
+ const s3 = s3_setup.get_s3(config);
+ const s3_opts = {
+ Bucket: config.bucket,
+ Prefix: config.prefix
+ };
+ s3.listObjects(s3_opts, (err, meta) => {
+ if (err && err.code === 'NotFound') {
+ return callback(new Error('[' + package_json.name + '] Not found: https://' + s3_opts.Bucket + '.s3.amazonaws.com/' + config.prefix));
+ } else if (err) {
+ return callback(err);
+ } else {
+ log.verbose(JSON.stringify(meta, null, 1));
+ if (meta && meta.Contents) {
+ meta.Contents.forEach((obj) => {
+ console.log(obj.Key);
+ });
+ } else {
+ console.error('[' + package_json.name + '] No objects found at https://' + s3_opts.Bucket + '.s3.amazonaws.com/' + config.prefix);
+ }
+ return callback();
+ }
+ });
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/install.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/install.js
new file mode 100644
index 0000000..617dd86
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/install.js
@@ -0,0 +1,235 @@
+'use strict';
+
+module.exports = exports = install;
+
+exports.usage = 'Attempts to install pre-built binary for module';
+
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+const existsAsync = fs.exists || path.exists;
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const makeDir = require('make-dir');
+// for fetching binaries
+const fetch = require('node-fetch');
+const tar = require('tar');
+
+let npgVersion = 'unknown';
+try {
+ // Read own package.json to get the current node-pre-pyp version.
+ const ownPackageJSON = fs.readFileSync(path.join(__dirname, '..', 'package.json'), 'utf8');
+ npgVersion = JSON.parse(ownPackageJSON).version;
+} catch (e) {
+ // do nothing
+}
+
+function place_binary(uri, targetDir, opts, callback) {
+ log.http('GET', uri);
+
+ // Try getting version info from the currently running npm.
+ const envVersionInfo = process.env.npm_config_user_agent ||
+ 'node ' + process.version;
+
+ const sanitized = uri.replace('+', '%2B');
+ const requestOpts = {
+ uri: sanitized,
+ headers: {
+ 'User-Agent': 'node-pre-gyp (v' + npgVersion + ', ' + envVersionInfo + ')'
+ },
+ follow_max: 10
+ };
+
+ if (opts.cafile) {
+ try {
+ requestOpts.ca = fs.readFileSync(opts.cafile);
+ } catch (e) {
+ return callback(e);
+ }
+ } else if (opts.ca) {
+ requestOpts.ca = opts.ca;
+ }
+
+ const proxyUrl = opts.proxy ||
+ process.env.http_proxy ||
+ process.env.HTTP_PROXY ||
+ process.env.npm_config_proxy;
+ let agent;
+ if (proxyUrl) {
+ const ProxyAgent = require('https-proxy-agent');
+ agent = new ProxyAgent(proxyUrl);
+ log.http('download', 'proxy agent configured using: "%s"', proxyUrl);
+ }
+
+ fetch(sanitized, { agent })
+ .then((res) => {
+ if (!res.ok) {
+ throw new Error(`response status ${res.status} ${res.statusText} on ${sanitized}`);
+ }
+ const dataStream = res.body;
+
+ return new Promise((resolve, reject) => {
+ let extractions = 0;
+ const countExtractions = (entry) => {
+ extractions += 1;
+ log.info('install', 'unpacking %s', entry.path);
+ };
+
+ dataStream.pipe(extract(targetDir, countExtractions))
+ .on('error', (e) => {
+ reject(e);
+ });
+ dataStream.on('end', () => {
+ resolve(`extracted file count: ${extractions}`);
+ });
+ dataStream.on('error', (e) => {
+ reject(e);
+ });
+ });
+ })
+ .then((text) => {
+ log.info(text);
+ callback();
+ })
+ .catch((e) => {
+ log.error(`install ${e.message}`);
+ callback(e);
+ });
+}
+
+function extract(to, onentry) {
+ return tar.extract({
+ cwd: to,
+ strip: 1,
+ onentry
+ });
+}
+
+function extract_from_local(from, targetDir, callback) {
+ if (!fs.existsSync(from)) {
+ return callback(new Error('Cannot find file ' + from));
+ }
+ log.info('Found local file to extract from ' + from);
+
+ // extract helpers
+ let extractCount = 0;
+ function countExtractions(entry) {
+ extractCount += 1;
+ log.info('install', 'unpacking ' + entry.path);
+ }
+ function afterExtract(err) {
+ if (err) return callback(err);
+ if (extractCount === 0) {
+ return callback(new Error('There was a fatal problem while extracting the tarball'));
+ }
+ log.info('tarball', 'done parsing tarball');
+ callback();
+ }
+
+ fs.createReadStream(from).pipe(extract(targetDir, countExtractions))
+ .on('close', afterExtract)
+ .on('error', afterExtract);
+}
+
+function do_build(gyp, argv, callback) {
+ const args = ['rebuild'].concat(argv);
+ gyp.todo.push({ name: 'build', args: args });
+ process.nextTick(callback);
+}
+
+function print_fallback_error(err, opts, package_json) {
+ const fallback_message = ' (falling back to source compile with node-gyp)';
+ let full_message = '';
+ if (err.statusCode !== undefined) {
+ // If we got a network response it but failed to download
+ // it means remote binaries are not available, so let's try to help
+ // the user/developer with the info to debug why
+ full_message = 'Pre-built binaries not found for ' + package_json.name + '@' + package_json.version;
+ full_message += ' and ' + opts.runtime + '@' + (opts.target || process.versions.node) + ' (' + opts.node_abi + ' ABI, ' + opts.libc + ')';
+ full_message += fallback_message;
+ log.warn('Tried to download(' + err.statusCode + '): ' + opts.hosted_tarball);
+ log.warn(full_message);
+ log.http(err.message);
+ } else {
+ // If we do not have a statusCode that means an unexpected error
+ // happened and prevented an http response, so we output the exact error
+ full_message = 'Pre-built binaries not installable for ' + package_json.name + '@' + package_json.version;
+ full_message += ' and ' + opts.runtime + '@' + (opts.target || process.versions.node) + ' (' + opts.node_abi + ' ABI, ' + opts.libc + ')';
+ full_message += fallback_message;
+ log.warn(full_message);
+ log.warn('Hit error ' + err.message);
+ }
+}
+
+//
+// install
+//
+function install(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+ const source_build = gyp.opts['build-from-source'] || gyp.opts.build_from_source;
+ const update_binary = gyp.opts['update-binary'] || gyp.opts.update_binary;
+ const should_do_source_build = source_build === package_json.name || (source_build === true || source_build === 'true');
+ if (should_do_source_build) {
+ log.info('build', 'requesting source compile');
+ return do_build(gyp, argv, callback);
+ } else {
+ const fallback_to_build = gyp.opts['fallback-to-build'] || gyp.opts.fallback_to_build;
+ let should_do_fallback_build = fallback_to_build === package_json.name || (fallback_to_build === true || fallback_to_build === 'true');
+ // but allow override from npm
+ if (process.env.npm_config_argv) {
+ const cooked = JSON.parse(process.env.npm_config_argv).cooked;
+ const match = cooked.indexOf('--fallback-to-build');
+ if (match > -1 && cooked.length > match && cooked[match + 1] === 'false') {
+ should_do_fallback_build = false;
+ log.info('install', 'Build fallback disabled via npm flag: --fallback-to-build=false');
+ }
+ }
+ let opts;
+ try {
+ opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+ } catch (err) {
+ return callback(err);
+ }
+
+ opts.ca = gyp.opts.ca;
+ opts.cafile = gyp.opts.cafile;
+
+ const from = opts.hosted_tarball;
+ const to = opts.module_path;
+ const binary_module = path.join(to, opts.module_name + '.node');
+ existsAsync(binary_module, (found) => {
+ if (!update_binary) {
+ if (found) {
+ console.log('[' + package_json.name + '] Success: "' + binary_module + '" already installed');
+ console.log('Pass --update-binary to reinstall or --build-from-source to recompile');
+ return callback();
+ }
+ log.info('check', 'checked for "' + binary_module + '" (not found)');
+ }
+
+ makeDir(to).then(() => {
+ const fileName = from.startsWith('file://') && from.slice('file://'.length);
+ if (fileName) {
+ extract_from_local(fileName, to, after_place);
+ } else {
+ place_binary(from, to, opts, after_place);
+ }
+ }).catch((err) => {
+ after_place(err);
+ });
+
+ function after_place(err) {
+ if (err && should_do_fallback_build) {
+ print_fallback_error(err, opts, package_json);
+ return do_build(gyp, argv, callback);
+ } else if (err) {
+ return callback(err);
+ } else {
+ console.log('[' + package_json.name + '] Success: "' + binary_module + '" is installed via remote');
+ return callback();
+ }
+ }
+ });
+ }
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/main.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/main.js
new file mode 100644
index 0000000..bae32ac
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/main.js
@@ -0,0 +1,125 @@
+'use strict';
+
+/**
+ * Set the title.
+ */
+
+process.title = 'node-pre-gyp';
+
+const node_pre_gyp = require('../');
+const log = require('npmlog');
+
+/**
+ * Process and execute the selected commands.
+ */
+
+const prog = new node_pre_gyp.Run({ argv: process.argv });
+let completed = false;
+
+if (prog.todo.length === 0) {
+ if (~process.argv.indexOf('-v') || ~process.argv.indexOf('--version')) {
+ console.log('v%s', prog.version);
+ process.exit(0);
+ } else if (~process.argv.indexOf('-h') || ~process.argv.indexOf('--help')) {
+ console.log('%s', prog.usage());
+ process.exit(0);
+ }
+ console.log('%s', prog.usage());
+ process.exit(1);
+}
+
+// if --no-color is passed
+if (prog.opts && Object.hasOwnProperty.call(prog, 'color') && !prog.opts.color) {
+ log.disableColor();
+}
+
+log.info('it worked if it ends with', 'ok');
+log.verbose('cli', process.argv);
+log.info('using', process.title + '@%s', prog.version);
+log.info('using', 'node@%s | %s | %s', process.versions.node, process.platform, process.arch);
+
+
+/**
+ * Change dir if -C/--directory was passed.
+ */
+
+const dir = prog.opts.directory;
+if (dir) {
+ const fs = require('fs');
+ try {
+ const stat = fs.statSync(dir);
+ if (stat.isDirectory()) {
+ log.info('chdir', dir);
+ process.chdir(dir);
+ } else {
+ log.warn('chdir', dir + ' is not a directory');
+ }
+ } catch (e) {
+ if (e.code === 'ENOENT') {
+ log.warn('chdir', dir + ' is not a directory');
+ } else {
+ log.warn('chdir', 'error during chdir() "%s"', e.message);
+ }
+ }
+}
+
+function run() {
+ const command = prog.todo.shift();
+ if (!command) {
+ // done!
+ completed = true;
+ log.info('ok');
+ return;
+ }
+
+ // set binary.host when appropriate. host determines the s3 target bucket.
+ const target = prog.setBinaryHostProperty(command.name);
+ if (target && ['install', 'publish', 'unpublish', 'info'].indexOf(command.name) >= 0) {
+ log.info('using binary.host: ' + prog.package_json.binary.host);
+ }
+
+ prog.commands[command.name](command.args, function(err) {
+ if (err) {
+ log.error(command.name + ' error');
+ log.error('stack', err.stack);
+ errorMessage();
+ log.error('not ok');
+ console.log(err.message);
+ return process.exit(1);
+ }
+ const args_array = [].slice.call(arguments, 1);
+ if (args_array.length) {
+ console.log.apply(console, args_array);
+ }
+ // now run the next command in the queue
+ process.nextTick(run);
+ });
+}
+
+process.on('exit', (code) => {
+ if (!completed && !code) {
+ log.error('Completion callback never invoked!');
+ errorMessage();
+ process.exit(6);
+ }
+});
+
+process.on('uncaughtException', (err) => {
+ log.error('UNCAUGHT EXCEPTION');
+ log.error('stack', err.stack);
+ errorMessage();
+ process.exit(7);
+});
+
+function errorMessage() {
+ // copied from npm's lib/util/error-handler.js
+ const os = require('os');
+ log.error('System', os.type() + ' ' + os.release());
+ log.error('command', process.argv.map(JSON.stringify).join(' '));
+ log.error('cwd', process.cwd());
+ log.error('node -v', process.version);
+ log.error(process.title + ' -v', 'v' + prog.package.version);
+}
+
+// start running the given commands!
+run();
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/node-pre-gyp.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/node-pre-gyp.js
new file mode 100644
index 0000000..dc18e74
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/node-pre-gyp.js
@@ -0,0 +1,309 @@
+'use strict';
+
+/**
+ * Module exports.
+ */
+
+module.exports = exports;
+
+/**
+ * Module dependencies.
+ */
+
+// load mocking control function for accessing s3 via https. the function is a noop always returning
+// false if not mocking.
+exports.mockS3Http = require('./util/s3_setup').get_mockS3Http();
+exports.mockS3Http('on');
+const mocking = exports.mockS3Http('get');
+
+
+const fs = require('fs');
+const path = require('path');
+const nopt = require('nopt');
+const log = require('npmlog');
+log.disableProgress();
+const napi = require('./util/napi.js');
+
+const EE = require('events').EventEmitter;
+const inherits = require('util').inherits;
+const cli_commands = [
+ 'clean',
+ 'install',
+ 'reinstall',
+ 'build',
+ 'rebuild',
+ 'package',
+ 'testpackage',
+ 'publish',
+ 'unpublish',
+ 'info',
+ 'testbinary',
+ 'reveal',
+ 'configure'
+];
+const aliases = {};
+
+// differentiate node-pre-gyp's logs from npm's
+log.heading = 'node-pre-gyp';
+
+if (mocking) {
+ log.warn(`mocking s3 to ${process.env.node_pre_gyp_mock_s3}`);
+}
+
+// this is a getter to avoid circular reference warnings with node v14.
+Object.defineProperty(exports, 'find', {
+ get: function() {
+ return require('./pre-binding').find;
+ },
+ enumerable: true
+});
+
+// in the following, "my_module" is using node-pre-gyp to
+// prebuild and install pre-built binaries. "main_module"
+// is using "my_module".
+//
+// "bin/node-pre-gyp" invokes Run() without a path. the
+// expectation is that the working directory is the package
+// root "my_module". this is true because in all cases npm is
+// executing a script in the context of "my_module".
+//
+// "pre-binding.find()" is executed by "my_module" but in the
+// context of "main_module". this is because "main_module" is
+// executing and requires "my_module" which is then executing
+// "pre-binding.find()" via "node-pre-gyp.find()", so the working
+// directory is that of "main_module".
+//
+// that's why "find()" must pass the path to package.json.
+//
+function Run({ package_json_path = './package.json', argv }) {
+ this.package_json_path = package_json_path;
+ this.commands = {};
+
+ const self = this;
+ cli_commands.forEach((command) => {
+ self.commands[command] = function(argvx, callback) {
+ log.verbose('command', command, argvx);
+ return require('./' + command)(self, argvx, callback);
+ };
+ });
+
+ this.parseArgv(argv);
+
+ // this is set to true after the binary.host property was set to
+ // either staging_host or production_host.
+ this.binaryHostSet = false;
+}
+inherits(Run, EE);
+exports.Run = Run;
+const proto = Run.prototype;
+
+/**
+ * Export the contents of the package.json.
+ */
+
+proto.package = require('../package.json');
+
+/**
+ * nopt configuration definitions
+ */
+
+proto.configDefs = {
+ help: Boolean, // everywhere
+ arch: String, // 'configure'
+ debug: Boolean, // 'build'
+ directory: String, // bin
+ proxy: String, // 'install'
+ loglevel: String // everywhere
+};
+
+/**
+ * nopt shorthands
+ */
+
+proto.shorthands = {
+ release: '--no-debug',
+ C: '--directory',
+ debug: '--debug',
+ j: '--jobs',
+ silent: '--loglevel=silent',
+ silly: '--loglevel=silly',
+ verbose: '--loglevel=verbose'
+};
+
+/**
+ * expose the command aliases for the bin file to use.
+ */
+
+proto.aliases = aliases;
+
+/**
+ * Parses the given argv array and sets the 'opts', 'argv',
+ * 'command', and 'package_json' properties.
+ */
+
+proto.parseArgv = function parseOpts(argv) {
+ this.opts = nopt(this.configDefs, this.shorthands, argv);
+ this.argv = this.opts.argv.remain.slice();
+ const commands = this.todo = [];
+
+ // create a copy of the argv array with aliases mapped
+ argv = this.argv.map((arg) => {
+ // is this an alias?
+ if (arg in this.aliases) {
+ arg = this.aliases[arg];
+ }
+ return arg;
+ });
+
+ // process the mapped args into "command" objects ("name" and "args" props)
+ argv.slice().forEach((arg) => {
+ if (arg in this.commands) {
+ const args = argv.splice(0, argv.indexOf(arg));
+ argv.shift();
+ if (commands.length > 0) {
+ commands[commands.length - 1].args = args;
+ }
+ commands.push({ name: arg, args: [] });
+ }
+ });
+ if (commands.length > 0) {
+ commands[commands.length - 1].args = argv.splice(0);
+ }
+
+
+ // if a directory was specified package.json is assumed to be relative
+ // to it.
+ let package_json_path = this.package_json_path;
+ if (this.opts.directory) {
+ package_json_path = path.join(this.opts.directory, package_json_path);
+ }
+
+ this.package_json = JSON.parse(fs.readFileSync(package_json_path));
+
+ // expand commands entries for multiple napi builds
+ this.todo = napi.expand_commands(this.package_json, this.opts, commands);
+
+ // support for inheriting config env variables from npm
+ const npm_config_prefix = 'npm_config_';
+ Object.keys(process.env).forEach((name) => {
+ if (name.indexOf(npm_config_prefix) !== 0) return;
+ const val = process.env[name];
+ if (name === npm_config_prefix + 'loglevel') {
+ log.level = val;
+ } else {
+ // add the user-defined options to the config
+ name = name.substring(npm_config_prefix.length);
+ // avoid npm argv clobber already present args
+ // which avoids problem of 'npm test' calling
+ // script that runs unique npm install commands
+ if (name === 'argv') {
+ if (this.opts.argv &&
+ this.opts.argv.remain &&
+ this.opts.argv.remain.length) {
+ // do nothing
+ } else {
+ this.opts[name] = val;
+ }
+ } else {
+ this.opts[name] = val;
+ }
+ }
+ });
+
+ if (this.opts.loglevel) {
+ log.level = this.opts.loglevel;
+ }
+ log.resume();
+};
+
+/**
+ * allow the binary.host property to be set at execution time.
+ *
+ * for this to take effect requires all the following to be true.
+ * - binary is a property in package.json
+ * - binary.host is falsey
+ * - binary.staging_host is not empty
+ * - binary.production_host is not empty
+ *
+ * if any of the previous checks fail then the function returns an empty string
+ * and makes no changes to package.json's binary property.
+ *
+ *
+ * if command is "publish" then the default is set to "binary.staging_host"
+ * if command is not "publish" the the default is set to "binary.production_host"
+ *
+ * if the command-line option '--s3_host' is set to "staging" or "production" then
+ * "binary.host" is set to the specified "staging_host" or "production_host". if
+ * '--s3_host' is any other value an exception is thrown.
+ *
+ * if '--s3_host' is not present then "binary.host" is set to the default as above.
+ *
+ * this strategy was chosen so that any command other than "publish" or "unpublish" uses "production"
+ * as the default without requiring any command-line options but that "publish" and "unpublish" require
+ * '--s3_host production_host' to be specified in order to *really* publish (or unpublish). publishing
+ * to staging can be done freely without worrying about disturbing any production releases.
+ */
+proto.setBinaryHostProperty = function(command) {
+ if (this.binaryHostSet) {
+ return this.package_json.binary.host;
+ }
+ const p = this.package_json;
+ // don't set anything if host is present. it must be left blank to trigger this.
+ if (!p || !p.binary || p.binary.host) {
+ return '';
+ }
+ // and both staging and production must be present. errors will be reported later.
+ if (!p.binary.staging_host || !p.binary.production_host) {
+ return '';
+ }
+ let target = 'production_host';
+ if (command === 'publish' || command === 'unpublish') {
+ target = 'staging_host';
+ }
+ // the environment variable has priority over the default or the command line. if
+ // either the env var or the command line option are invalid throw an error.
+ const npg_s3_host = process.env.node_pre_gyp_s3_host;
+ if (npg_s3_host === 'staging' || npg_s3_host === 'production') {
+ target = `${npg_s3_host}_host`;
+ } else if (this.opts['s3_host'] === 'staging' || this.opts['s3_host'] === 'production') {
+ target = `${this.opts['s3_host']}_host`;
+ } else if (this.opts['s3_host'] || npg_s3_host) {
+ throw new Error(`invalid s3_host ${this.opts['s3_host'] || npg_s3_host}`);
+ }
+
+ p.binary.host = p.binary[target];
+ this.binaryHostSet = true;
+
+ return p.binary.host;
+};
+
+/**
+ * Returns the usage instructions for node-pre-gyp.
+ */
+
+proto.usage = function usage() {
+ const str = [
+ '',
+ ' Usage: node-pre-gyp <command> [options]',
+ '',
+ ' where <command> is one of:',
+ cli_commands.map((c) => {
+ return ' - ' + c + ' - ' + require('./' + c).usage;
+ }).join('\n'),
+ '',
+ 'node-pre-gyp@' + this.version + ' ' + path.resolve(__dirname, '..'),
+ 'node@' + process.versions.node
+ ].join('\n');
+ return str;
+};
+
+/**
+ * Version number getter.
+ */
+
+Object.defineProperty(proto, 'version', {
+ get: function() {
+ return this.package.version;
+ },
+ enumerable: true
+});
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/package.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/package.js
new file mode 100644
index 0000000..0734984
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/package.js
@@ -0,0 +1,73 @@
+'use strict';
+
+module.exports = exports = _package;
+
+exports.usage = 'Packs binary (and enclosing directory) into locally staged tarball';
+
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const existsAsync = fs.exists || path.exists;
+const makeDir = require('make-dir');
+const tar = require('tar');
+
+function readdirSync(dir) {
+ let list = [];
+ const files = fs.readdirSync(dir);
+
+ files.forEach((file) => {
+ const stats = fs.lstatSync(path.join(dir, file));
+ if (stats.isDirectory()) {
+ list = list.concat(readdirSync(path.join(dir, file)));
+ } else {
+ list.push(path.join(dir, file));
+ }
+ });
+ return list;
+}
+
+function _package(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+ const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+ const from = opts.module_path;
+ const binary_module = path.join(from, opts.module_name + '.node');
+ existsAsync(binary_module, (found) => {
+ if (!found) {
+ return callback(new Error('Cannot package because ' + binary_module + ' missing: run `node-pre-gyp rebuild` first'));
+ }
+ const tarball = opts.staged_tarball;
+ const filter_func = function(entry) {
+ const basename = path.basename(entry);
+ if (basename.length && basename[0] !== '.') {
+ console.log('packing ' + entry);
+ return true;
+ } else {
+ console.log('skipping ' + entry);
+ }
+ return false;
+ };
+ makeDir(path.dirname(tarball)).then(() => {
+ let files = readdirSync(from);
+ const base = path.basename(from);
+ files = files.map((file) => {
+ return path.join(base, path.relative(from, file));
+ });
+ tar.create({
+ portable: false,
+ gzip: true,
+ filter: filter_func,
+ file: tarball,
+ cwd: path.dirname(from)
+ }, files, (err2) => {
+ if (err2) console.error('[' + package_json.name + '] ' + err2.message);
+ else log.info('package', 'Binary staged at "' + tarball + '"');
+ return callback(err2);
+ });
+ }).catch((err) => {
+ return callback(err);
+ });
+ });
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/pre-binding.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/pre-binding.js
new file mode 100644
index 0000000..e110fe3
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/pre-binding.js
@@ -0,0 +1,34 @@
+'use strict';
+
+const npg = require('..');
+const versioning = require('../lib/util/versioning.js');
+const napi = require('../lib/util/napi.js');
+const existsSync = require('fs').existsSync || require('path').existsSync;
+const path = require('path');
+
+module.exports = exports;
+
+exports.usage = 'Finds the require path for the node-pre-gyp installed module';
+
+exports.validate = function(package_json, opts) {
+ versioning.validate_config(package_json, opts);
+};
+
+exports.find = function(package_json_path, opts) {
+ if (!existsSync(package_json_path)) {
+ throw new Error(package_json_path + 'does not exist');
+ }
+ const prog = new npg.Run({ package_json_path, argv: process.argv });
+ prog.setBinaryHostProperty();
+ const package_json = prog.package_json;
+
+ versioning.validate_config(package_json, opts);
+ let napi_build_version;
+ if (napi.get_napi_build_versions(package_json, opts)) {
+ napi_build_version = napi.get_best_napi_build_version(package_json, opts);
+ }
+ opts = opts || {};
+ if (!opts.module_root) opts.module_root = path.dirname(package_json_path);
+ const meta = versioning.evaluate(package_json, opts, napi_build_version);
+ return meta.module;
+};
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/publish.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/publish.js
new file mode 100644
index 0000000..8367b15
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/publish.js
@@ -0,0 +1,81 @@
+'use strict';
+
+module.exports = exports = publish;
+
+exports.usage = 'Publishes pre-built binary (requires aws-sdk)';
+
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const s3_setup = require('./util/s3_setup.js');
+const existsAsync = fs.exists || path.exists;
+const url = require('url');
+
+function publish(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+ const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+ const tarball = opts.staged_tarball;
+ existsAsync(tarball, (found) => {
+ if (!found) {
+ return callback(new Error('Cannot publish because ' + tarball + ' missing: run `node-pre-gyp package` first'));
+ }
+
+ log.info('publish', 'Detecting s3 credentials');
+ const config = {};
+ s3_setup.detect(opts, config);
+ const s3 = s3_setup.get_s3(config);
+
+ const key_name = url.resolve(config.prefix, opts.package_name);
+ const s3_opts = {
+ Bucket: config.bucket,
+ Key: key_name
+ };
+ log.info('publish', 'Authenticating with s3');
+ log.info('publish', config);
+
+ log.info('publish', 'Checking for existing binary at ' + opts.hosted_path);
+ s3.headObject(s3_opts, (err, meta) => {
+ if (meta) log.info('publish', JSON.stringify(meta));
+ if (err && err.code === 'NotFound') {
+ // we are safe to publish because
+ // the object does not already exist
+ log.info('publish', 'Preparing to put object');
+ const s3_put_opts = {
+ ACL: 'public-read',
+ Body: fs.createReadStream(tarball),
+ Key: key_name,
+ Bucket: config.bucket
+ };
+ log.info('publish', 'Putting object', s3_put_opts.ACL, s3_put_opts.Bucket, s3_put_opts.Key);
+ try {
+ s3.putObject(s3_put_opts, (err2, resp) => {
+ log.info('publish', 'returned from putting object');
+ if (err2) {
+ log.info('publish', 's3 putObject error: "' + err2 + '"');
+ return callback(err2);
+ }
+ if (resp) log.info('publish', 's3 putObject response: "' + JSON.stringify(resp) + '"');
+ log.info('publish', 'successfully put object');
+ console.log('[' + package_json.name + '] published to ' + opts.hosted_path);
+ return callback();
+ });
+ } catch (err3) {
+ log.info('publish', 's3 putObject error: "' + err3 + '"');
+ return callback(err3);
+ }
+ } else if (err) {
+ log.info('publish', 's3 headObject error: "' + err + '"');
+ return callback(err);
+ } else {
+ log.error('publish', 'Cannot publish over existing version');
+ log.error('publish', "Update the 'version' field in package.json and try again");
+ log.error('publish', 'If the previous version was published in error see:');
+ log.error('publish', '\t node-pre-gyp unpublish');
+ return callback(new Error('Failed publishing to ' + opts.hosted_path));
+ }
+ });
+ });
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/rebuild.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/rebuild.js
new file mode 100644
index 0000000..31510fb
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/rebuild.js
@@ -0,0 +1,20 @@
+'use strict';
+
+module.exports = exports = rebuild;
+
+exports.usage = 'Runs "clean" and "build" at once';
+
+const napi = require('./util/napi.js');
+
+function rebuild(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ let commands = [
+ { name: 'clean', args: [] },
+ { name: 'build', args: ['rebuild'] }
+ ];
+ commands = napi.expand_commands(package_json, gyp.opts, commands);
+ for (let i = commands.length; i !== 0; i--) {
+ gyp.todo.unshift(commands[i - 1]);
+ }
+ process.nextTick(callback);
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/reinstall.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/reinstall.js
new file mode 100644
index 0000000..a29b5c9
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/reinstall.js
@@ -0,0 +1,19 @@
+'use strict';
+
+module.exports = exports = rebuild;
+
+exports.usage = 'Runs "clean" and "install" at once';
+
+const napi = require('./util/napi.js');
+
+function rebuild(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ let installArgs = [];
+ const napi_build_version = napi.get_best_napi_build_version(package_json, gyp.opts);
+ if (napi_build_version != null) installArgs = [napi.get_command_arg(napi_build_version)];
+ gyp.todo.unshift(
+ { name: 'clean', args: [] },
+ { name: 'install', args: installArgs }
+ );
+ process.nextTick(callback);
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/reveal.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/reveal.js
new file mode 100644
index 0000000..7255e5f
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/reveal.js
@@ -0,0 +1,32 @@
+'use strict';
+
+module.exports = exports = reveal;
+
+exports.usage = 'Reveals data on the versioned binary';
+
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+
+function unix_paths(key, val) {
+ return val && val.replace ? val.replace(/\\/g, '/') : val;
+}
+
+function reveal(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+ const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+ let hit = false;
+ // if a second arg is passed look to see
+ // if it is a known option
+ // console.log(JSON.stringify(gyp.opts,null,1))
+ const remain = gyp.opts.argv.remain[gyp.opts.argv.remain.length - 1];
+ if (remain && Object.hasOwnProperty.call(opts, remain)) {
+ console.log(opts[remain].replace(/\\/g, '/'));
+ hit = true;
+ }
+ // otherwise return all options as json
+ if (!hit) {
+ console.log(JSON.stringify(opts, unix_paths, 2));
+ }
+ return callback();
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/testbinary.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/testbinary.js
new file mode 100644
index 0000000..429cb13
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/testbinary.js
@@ -0,0 +1,79 @@
+'use strict';
+
+module.exports = exports = testbinary;
+
+exports.usage = 'Tests that the binary.node can be required';
+
+const path = require('path');
+const log = require('npmlog');
+const cp = require('child_process');
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+
+function testbinary(gyp, argv, callback) {
+ const args = [];
+ const options = {};
+ let shell_cmd = process.execPath;
+ const package_json = gyp.package_json;
+ const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+ const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+ // skip validation for runtimes we don't explicitly support (like electron)
+ if (opts.runtime &&
+ opts.runtime !== 'node-webkit' &&
+ opts.runtime !== 'node') {
+ return callback();
+ }
+ const nw = (opts.runtime && opts.runtime === 'node-webkit');
+ // ensure on windows that / are used for require path
+ const binary_module = opts.module.replace(/\\/g, '/');
+ if ((process.arch !== opts.target_arch) ||
+ (process.platform !== opts.target_platform)) {
+ let msg = 'skipping validation since host platform/arch (';
+ msg += process.platform + '/' + process.arch + ')';
+ msg += ' does not match target (';
+ msg += opts.target_platform + '/' + opts.target_arch + ')';
+ log.info('validate', msg);
+ return callback();
+ }
+ if (nw) {
+ options.timeout = 5000;
+ if (process.platform === 'darwin') {
+ shell_cmd = 'node-webkit';
+ } else if (process.platform === 'win32') {
+ shell_cmd = 'nw.exe';
+ } else {
+ shell_cmd = 'nw';
+ }
+ const modulePath = path.resolve(binary_module);
+ const appDir = path.join(__dirname, 'util', 'nw-pre-gyp');
+ args.push(appDir);
+ args.push(modulePath);
+ log.info('validate', "Running test command: '" + shell_cmd + ' ' + args.join(' ') + "'");
+ cp.execFile(shell_cmd, args, options, (err, stdout, stderr) => {
+ // check for normal timeout for node-webkit
+ if (err) {
+ if (err.killed === true && err.signal && err.signal.indexOf('SIG') > -1) {
+ return callback();
+ }
+ const stderrLog = stderr.toString();
+ log.info('stderr', stderrLog);
+ if (/^\s*Xlib:\s*extension\s*"RANDR"\s*missing\s*on\s*display\s*":\d+\.\d+"\.\s*$/.test(stderrLog)) {
+ log.info('RANDR', 'stderr contains only RANDR error, ignored');
+ return callback();
+ }
+ return callback(err);
+ }
+ return callback();
+ });
+ return;
+ }
+ args.push('--eval');
+ args.push("require('" + binary_module.replace(/'/g, '\'') + "')");
+ log.info('validate', "Running test command: '" + shell_cmd + ' ' + args.join(' ') + "'");
+ cp.execFile(shell_cmd, args, options, (err, stdout, stderr) => {
+ if (err) {
+ return callback(err, { stdout: stdout, stderr: stderr });
+ }
+ return callback();
+ });
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/testpackage.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/testpackage.js
new file mode 100644
index 0000000..fab1911
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/testpackage.js
@@ -0,0 +1,53 @@
+'use strict';
+
+module.exports = exports = testpackage;
+
+exports.usage = 'Tests that the staged package is valid';
+
+const fs = require('fs');
+const path = require('path');
+const log = require('npmlog');
+const existsAsync = fs.exists || path.exists;
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const testbinary = require('./testbinary.js');
+const tar = require('tar');
+const makeDir = require('make-dir');
+
+function testpackage(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+ const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+ const tarball = opts.staged_tarball;
+ existsAsync(tarball, (found) => {
+ if (!found) {
+ return callback(new Error('Cannot test package because ' + tarball + ' missing: run `node-pre-gyp package` first'));
+ }
+ const to = opts.module_path;
+ function filter_func(entry) {
+ log.info('install', 'unpacking [' + entry.path + ']');
+ }
+
+ makeDir(to).then(() => {
+ tar.extract({
+ file: tarball,
+ cwd: to,
+ strip: 1,
+ onentry: filter_func
+ }).then(after_extract, callback);
+ }).catch((err) => {
+ return callback(err);
+ });
+
+ function after_extract() {
+ testbinary(gyp, argv, (err) => {
+ if (err) {
+ return callback(err);
+ } else {
+ console.log('[' + package_json.name + '] Package appears valid');
+ return callback();
+ }
+ });
+ }
+ });
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/unpublish.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/unpublish.js
new file mode 100644
index 0000000..12c9f56
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/unpublish.js
@@ -0,0 +1,41 @@
+'use strict';
+
+module.exports = exports = unpublish;
+
+exports.usage = 'Unpublishes pre-built binary (requires aws-sdk)';
+
+const log = require('npmlog');
+const versioning = require('./util/versioning.js');
+const napi = require('./util/napi.js');
+const s3_setup = require('./util/s3_setup.js');
+const url = require('url');
+
+function unpublish(gyp, argv, callback) {
+ const package_json = gyp.package_json;
+ const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+ const opts = versioning.evaluate(package_json, gyp.opts, napi_build_version);
+ const config = {};
+ s3_setup.detect(opts, config);
+ const s3 = s3_setup.get_s3(config);
+ const key_name = url.resolve(config.prefix, opts.package_name);
+ const s3_opts = {
+ Bucket: config.bucket,
+ Key: key_name
+ };
+ s3.headObject(s3_opts, (err, meta) => {
+ if (err && err.code === 'NotFound') {
+ console.log('[' + package_json.name + '] Not found: https://' + s3_opts.Bucket + '.s3.amazonaws.com/' + s3_opts.Key);
+ return callback();
+ } else if (err) {
+ return callback(err);
+ } else {
+ log.info('unpublish', JSON.stringify(meta));
+ s3.deleteObject(s3_opts, (err2, resp) => {
+ if (err2) return callback(err2);
+ log.info(JSON.stringify(resp));
+ console.log('[' + package_json.name + '] Success: removed https://' + s3_opts.Bucket + '.s3.amazonaws.com/' + s3_opts.Key);
+ return callback();
+ });
+ }
+ });
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/util/abi_crosswalk.json b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/abi_crosswalk.json
new file mode 100644
index 0000000..7f52972
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/abi_crosswalk.json
@@ -0,0 +1,2602 @@
+{
+ "0.1.14": {
+ "node_abi": null,
+ "v8": "1.3"
+ },
+ "0.1.15": {
+ "node_abi": null,
+ "v8": "1.3"
+ },
+ "0.1.16": {
+ "node_abi": null,
+ "v8": "1.3"
+ },
+ "0.1.17": {
+ "node_abi": null,
+ "v8": "1.3"
+ },
+ "0.1.18": {
+ "node_abi": null,
+ "v8": "1.3"
+ },
+ "0.1.19": {
+ "node_abi": null,
+ "v8": "2.0"
+ },
+ "0.1.20": {
+ "node_abi": null,
+ "v8": "2.0"
+ },
+ "0.1.21": {
+ "node_abi": null,
+ "v8": "2.0"
+ },
+ "0.1.22": {
+ "node_abi": null,
+ "v8": "2.0"
+ },
+ "0.1.23": {
+ "node_abi": null,
+ "v8": "2.0"
+ },
+ "0.1.24": {
+ "node_abi": null,
+ "v8": "2.0"
+ },
+ "0.1.25": {
+ "node_abi": null,
+ "v8": "2.0"
+ },
+ "0.1.26": {
+ "node_abi": null,
+ "v8": "2.0"
+ },
+ "0.1.27": {
+ "node_abi": null,
+ "v8": "2.1"
+ },
+ "0.1.28": {
+ "node_abi": null,
+ "v8": "2.1"
+ },
+ "0.1.29": {
+ "node_abi": null,
+ "v8": "2.1"
+ },
+ "0.1.30": {
+ "node_abi": null,
+ "v8": "2.1"
+ },
+ "0.1.31": {
+ "node_abi": null,
+ "v8": "2.1"
+ },
+ "0.1.32": {
+ "node_abi": null,
+ "v8": "2.1"
+ },
+ "0.1.33": {
+ "node_abi": null,
+ "v8": "2.1"
+ },
+ "0.1.90": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.91": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.92": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.93": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.94": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.95": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.96": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.97": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.98": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.99": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.100": {
+ "node_abi": null,
+ "v8": "2.2"
+ },
+ "0.1.101": {
+ "node_abi": null,
+ "v8": "2.3"
+ },
+ "0.1.102": {
+ "node_abi": null,
+ "v8": "2.3"
+ },
+ "0.1.103": {
+ "node_abi": null,
+ "v8": "2.3"
+ },
+ "0.1.104": {
+ "node_abi": null,
+ "v8": "2.3"
+ },
+ "0.2.0": {
+ "node_abi": 1,
+ "v8": "2.3"
+ },
+ "0.2.1": {
+ "node_abi": 1,
+ "v8": "2.3"
+ },
+ "0.2.2": {
+ "node_abi": 1,
+ "v8": "2.3"
+ },
+ "0.2.3": {
+ "node_abi": 1,
+ "v8": "2.3"
+ },
+ "0.2.4": {
+ "node_abi": 1,
+ "v8": "2.3"
+ },
+ "0.2.5": {
+ "node_abi": 1,
+ "v8": "2.3"
+ },
+ "0.2.6": {
+ "node_abi": 1,
+ "v8": "2.3"
+ },
+ "0.3.0": {
+ "node_abi": 1,
+ "v8": "2.5"
+ },
+ "0.3.1": {
+ "node_abi": 1,
+ "v8": "2.5"
+ },
+ "0.3.2": {
+ "node_abi": 1,
+ "v8": "3.0"
+ },
+ "0.3.3": {
+ "node_abi": 1,
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+ "v8": "6.8"
+ },
+ "10.22.1": {
+ "node_abi": 64,
+ "v8": "6.8"
+ },
+ "10.23.0": {
+ "node_abi": 64,
+ "v8": "6.8"
+ },
+ "10.23.1": {
+ "node_abi": 64,
+ "v8": "6.8"
+ },
+ "10.23.2": {
+ "node_abi": 64,
+ "v8": "6.8"
+ },
+ "10.23.3": {
+ "node_abi": 64,
+ "v8": "6.8"
+ },
+ "10.24.0": {
+ "node_abi": 64,
+ "v8": "6.8"
+ },
+ "10.24.1": {
+ "node_abi": 64,
+ "v8": "6.8"
+ },
+ "11.0.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.1.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.2.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.3.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.4.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.5.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.6.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.7.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.8.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.9.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.10.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.10.1": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.11.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.12.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.13.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.14.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "11.15.0": {
+ "node_abi": 67,
+ "v8": "7.0"
+ },
+ "12.0.0": {
+ "node_abi": 72,
+ "v8": "7.4"
+ },
+ "12.1.0": {
+ "node_abi": 72,
+ "v8": "7.4"
+ },
+ "12.2.0": {
+ "node_abi": 72,
+ "v8": "7.4"
+ },
+ "12.3.0": {
+ "node_abi": 72,
+ "v8": "7.4"
+ },
+ "12.3.1": {
+ "node_abi": 72,
+ "v8": "7.4"
+ },
+ "12.4.0": {
+ "node_abi": 72,
+ "v8": "7.4"
+ },
+ "12.5.0": {
+ "node_abi": 72,
+ "v8": "7.5"
+ },
+ "12.6.0": {
+ "node_abi": 72,
+ "v8": "7.5"
+ },
+ "12.7.0": {
+ "node_abi": 72,
+ "v8": "7.5"
+ },
+ "12.8.0": {
+ "node_abi": 72,
+ "v8": "7.5"
+ },
+ "12.8.1": {
+ "node_abi": 72,
+ "v8": "7.5"
+ },
+ "12.9.0": {
+ "node_abi": 72,
+ "v8": "7.6"
+ },
+ "12.9.1": {
+ "node_abi": 72,
+ "v8": "7.6"
+ },
+ "12.10.0": {
+ "node_abi": 72,
+ "v8": "7.6"
+ },
+ "12.11.0": {
+ "node_abi": 72,
+ "v8": "7.7"
+ },
+ "12.11.1": {
+ "node_abi": 72,
+ "v8": "7.7"
+ },
+ "12.12.0": {
+ "node_abi": 72,
+ "v8": "7.7"
+ },
+ "12.13.0": {
+ "node_abi": 72,
+ "v8": "7.7"
+ },
+ "12.13.1": {
+ "node_abi": 72,
+ "v8": "7.7"
+ },
+ "12.14.0": {
+ "node_abi": 72,
+ "v8": "7.7"
+ },
+ "12.14.1": {
+ "node_abi": 72,
+ "v8": "7.7"
+ },
+ "12.15.0": {
+ "node_abi": 72,
+ "v8": "7.7"
+ },
+ "12.16.0": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.16.1": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.16.2": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.16.3": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.17.0": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.18.0": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.18.1": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.18.2": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.18.3": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.18.4": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.19.0": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.19.1": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.20.0": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.20.1": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.20.2": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.21.0": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.22.0": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.22.1": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.22.2": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.22.3": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.22.4": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.22.5": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.22.6": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "12.22.7": {
+ "node_abi": 72,
+ "v8": "7.8"
+ },
+ "13.0.0": {
+ "node_abi": 79,
+ "v8": "7.8"
+ },
+ "13.0.1": {
+ "node_abi": 79,
+ "v8": "7.8"
+ },
+ "13.1.0": {
+ "node_abi": 79,
+ "v8": "7.8"
+ },
+ "13.2.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.3.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.4.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.5.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.6.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.7.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.8.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.9.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.10.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.10.1": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.11.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.12.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.13.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "13.14.0": {
+ "node_abi": 79,
+ "v8": "7.9"
+ },
+ "14.0.0": {
+ "node_abi": 83,
+ "v8": "8.1"
+ },
+ "14.1.0": {
+ "node_abi": 83,
+ "v8": "8.1"
+ },
+ "14.2.0": {
+ "node_abi": 83,
+ "v8": "8.1"
+ },
+ "14.3.0": {
+ "node_abi": 83,
+ "v8": "8.1"
+ },
+ "14.4.0": {
+ "node_abi": 83,
+ "v8": "8.1"
+ },
+ "14.5.0": {
+ "node_abi": 83,
+ "v8": "8.3"
+ },
+ "14.6.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.7.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.8.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.9.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.10.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.10.1": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.11.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.12.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.13.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.13.1": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.14.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.15.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.15.1": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.15.2": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.15.3": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.15.4": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.15.5": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.16.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.16.1": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.17.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.17.1": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.17.2": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.17.3": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.17.4": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.17.5": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.17.6": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.18.0": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "14.18.1": {
+ "node_abi": 83,
+ "v8": "8.4"
+ },
+ "15.0.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.0.1": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.1.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.2.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.2.1": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.3.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.4.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.5.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.5.1": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.6.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.7.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.8.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.9.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.10.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.11.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.12.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.13.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "15.14.0": {
+ "node_abi": 88,
+ "v8": "8.6"
+ },
+ "16.0.0": {
+ "node_abi": 93,
+ "v8": "9.0"
+ },
+ "16.1.0": {
+ "node_abi": 93,
+ "v8": "9.0"
+ },
+ "16.2.0": {
+ "node_abi": 93,
+ "v8": "9.0"
+ },
+ "16.3.0": {
+ "node_abi": 93,
+ "v8": "9.0"
+ },
+ "16.4.0": {
+ "node_abi": 93,
+ "v8": "9.1"
+ },
+ "16.4.1": {
+ "node_abi": 93,
+ "v8": "9.1"
+ },
+ "16.4.2": {
+ "node_abi": 93,
+ "v8": "9.1"
+ },
+ "16.5.0": {
+ "node_abi": 93,
+ "v8": "9.1"
+ },
+ "16.6.0": {
+ "node_abi": 93,
+ "v8": "9.2"
+ },
+ "16.6.1": {
+ "node_abi": 93,
+ "v8": "9.2"
+ },
+ "16.6.2": {
+ "node_abi": 93,
+ "v8": "9.2"
+ },
+ "16.7.0": {
+ "node_abi": 93,
+ "v8": "9.2"
+ },
+ "16.8.0": {
+ "node_abi": 93,
+ "v8": "9.2"
+ },
+ "16.9.0": {
+ "node_abi": 93,
+ "v8": "9.3"
+ },
+ "16.9.1": {
+ "node_abi": 93,
+ "v8": "9.3"
+ },
+ "16.10.0": {
+ "node_abi": 93,
+ "v8": "9.3"
+ },
+ "16.11.0": {
+ "node_abi": 93,
+ "v8": "9.4"
+ },
+ "16.11.1": {
+ "node_abi": 93,
+ "v8": "9.4"
+ },
+ "16.12.0": {
+ "node_abi": 93,
+ "v8": "9.4"
+ },
+ "16.13.0": {
+ "node_abi": 93,
+ "v8": "9.4"
+ },
+ "17.0.0": {
+ "node_abi": 102,
+ "v8": "9.5"
+ },
+ "17.0.1": {
+ "node_abi": 102,
+ "v8": "9.5"
+ },
+ "17.1.0": {
+ "node_abi": 102,
+ "v8": "9.5"
+ }
+}
\ No newline at end of file
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/util/compile.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/compile.js
new file mode 100644
index 0000000..956e5aa
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/compile.js
@@ -0,0 +1,93 @@
+'use strict';
+
+module.exports = exports;
+
+const fs = require('fs');
+const path = require('path');
+const win = process.platform === 'win32';
+const existsSync = fs.existsSync || path.existsSync;
+const cp = require('child_process');
+
+// try to build up the complete path to node-gyp
+/* priority:
+ - node-gyp on ENV:npm_config_node_gyp (https://github.com/npm/npm/pull/4887)
+ - node-gyp on NODE_PATH
+ - node-gyp inside npm on NODE_PATH (ignore on iojs)
+ - node-gyp inside npm beside node exe
+*/
+function which_node_gyp() {
+ let node_gyp_bin;
+ if (process.env.npm_config_node_gyp) {
+ try {
+ node_gyp_bin = process.env.npm_config_node_gyp;
+ if (existsSync(node_gyp_bin)) {
+ return node_gyp_bin;
+ }
+ } catch (err) {
+ // do nothing
+ }
+ }
+ try {
+ const node_gyp_main = require.resolve('node-gyp'); // eslint-disable-line node/no-missing-require
+ node_gyp_bin = path.join(path.dirname(
+ path.dirname(node_gyp_main)),
+ 'bin/node-gyp.js');
+ if (existsSync(node_gyp_bin)) {
+ return node_gyp_bin;
+ }
+ } catch (err) {
+ // do nothing
+ }
+ if (process.execPath.indexOf('iojs') === -1) {
+ try {
+ const npm_main = require.resolve('npm'); // eslint-disable-line node/no-missing-require
+ node_gyp_bin = path.join(path.dirname(
+ path.dirname(npm_main)),
+ 'node_modules/node-gyp/bin/node-gyp.js');
+ if (existsSync(node_gyp_bin)) {
+ return node_gyp_bin;
+ }
+ } catch (err) {
+ // do nothing
+ }
+ }
+ const npm_base = path.join(path.dirname(
+ path.dirname(process.execPath)),
+ 'lib/node_modules/npm/');
+ node_gyp_bin = path.join(npm_base, 'node_modules/node-gyp/bin/node-gyp.js');
+ if (existsSync(node_gyp_bin)) {
+ return node_gyp_bin;
+ }
+}
+
+module.exports.run_gyp = function(args, opts, callback) {
+ let shell_cmd = '';
+ const cmd_args = [];
+ if (opts.runtime && opts.runtime === 'node-webkit') {
+ shell_cmd = 'nw-gyp';
+ if (win) shell_cmd += '.cmd';
+ } else {
+ const node_gyp_path = which_node_gyp();
+ if (node_gyp_path) {
+ shell_cmd = process.execPath;
+ cmd_args.push(node_gyp_path);
+ } else {
+ shell_cmd = 'node-gyp';
+ if (win) shell_cmd += '.cmd';
+ }
+ }
+ const final_args = cmd_args.concat(args);
+ const cmd = cp.spawn(shell_cmd, final_args, { cwd: undefined, env: process.env, stdio: [0, 1, 2] });
+ cmd.on('error', (err) => {
+ if (err) {
+ return callback(new Error("Failed to execute '" + shell_cmd + ' ' + final_args.join(' ') + "' (" + err + ')'));
+ }
+ callback(null, opts);
+ });
+ cmd.on('close', (code) => {
+ if (code && code !== 0) {
+ return callback(new Error("Failed to execute '" + shell_cmd + ' ' + final_args.join(' ') + "' (" + code + ')'));
+ }
+ callback(null, opts);
+ });
+};
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/util/handle_gyp_opts.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/handle_gyp_opts.js
new file mode 100644
index 0000000..d702f78
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/handle_gyp_opts.js
@@ -0,0 +1,102 @@
+'use strict';
+
+module.exports = exports = handle_gyp_opts;
+
+const versioning = require('./versioning.js');
+const napi = require('./napi.js');
+
+/*
+
+Here we gather node-pre-gyp generated options (from versioning) and pass them along to node-gyp.
+
+We massage the args and options slightly to account for differences in what commands mean between
+node-pre-gyp and node-gyp (e.g. see the difference between "build" and "rebuild" below)
+
+Keep in mind: the values inside `argv` and `gyp.opts` below are different depending on whether
+node-pre-gyp is called directory, or if it is called in a `run-script` phase of npm.
+
+We also try to preserve any command line options that might have been passed to npm or node-pre-gyp.
+But this is fairly difficult without passing way to much through. For example `gyp.opts` contains all
+the process.env and npm pushes a lot of variables into process.env which node-pre-gyp inherits. So we have
+to be very selective about what we pass through.
+
+For example:
+
+`npm install --build-from-source` will give:
+
+argv == [ 'rebuild' ]
+gyp.opts.argv == { remain: [ 'install' ],
+ cooked: [ 'install', '--fallback-to-build' ],
+ original: [ 'install', '--fallback-to-build' ] }
+
+`./bin/node-pre-gyp build` will give:
+
+argv == []
+gyp.opts.argv == { remain: [ 'build' ],
+ cooked: [ 'build' ],
+ original: [ '-C', 'test/app1', 'build' ] }
+
+*/
+
+// select set of node-pre-gyp versioning info
+// to share with node-gyp
+const share_with_node_gyp = [
+ 'module',
+ 'module_name',
+ 'module_path',
+ 'napi_version',
+ 'node_abi_napi',
+ 'napi_build_version',
+ 'node_napi_label'
+];
+
+function handle_gyp_opts(gyp, argv, callback) {
+
+ // Collect node-pre-gyp specific variables to pass to node-gyp
+ const node_pre_gyp_options = [];
+ // generate custom node-pre-gyp versioning info
+ const napi_build_version = napi.get_napi_build_version_from_command_args(argv);
+ const opts = versioning.evaluate(gyp.package_json, gyp.opts, napi_build_version);
+ share_with_node_gyp.forEach((key) => {
+ const val = opts[key];
+ if (val) {
+ node_pre_gyp_options.push('--' + key + '=' + val);
+ } else if (key === 'napi_build_version') {
+ node_pre_gyp_options.push('--' + key + '=0');
+ } else {
+ if (key !== 'napi_version' && key !== 'node_abi_napi')
+ return callback(new Error('Option ' + key + ' required but not found by node-pre-gyp'));
+ }
+ });
+
+ // Collect options that follow the special -- which disables nopt parsing
+ const unparsed_options = [];
+ let double_hyphen_found = false;
+ gyp.opts.argv.original.forEach((opt) => {
+ if (double_hyphen_found) {
+ unparsed_options.push(opt);
+ }
+ if (opt === '--') {
+ double_hyphen_found = true;
+ }
+ });
+
+ // We try respect and pass through remaining command
+ // line options (like --foo=bar) to node-gyp
+ const cooked = gyp.opts.argv.cooked;
+ const node_gyp_options = [];
+ cooked.forEach((value) => {
+ if (value.length > 2 && value.slice(0, 2) === '--') {
+ const key = value.slice(2);
+ const val = cooked[cooked.indexOf(value) + 1];
+ if (val && val.indexOf('--') === -1) { // handle '--foo=bar' or ['--foo','bar']
+ node_gyp_options.push('--' + key + '=' + val);
+ } else { // pass through --foo
+ node_gyp_options.push(value);
+ }
+ }
+ });
+
+ const result = { 'opts': opts, 'gyp': node_gyp_options, 'pre': node_pre_gyp_options, 'unparsed': unparsed_options };
+ return callback(null, result);
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/util/napi.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/napi.js
new file mode 100644
index 0000000..5d14ad6
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/napi.js
@@ -0,0 +1,205 @@
+'use strict';
+
+const fs = require('fs');
+
+module.exports = exports;
+
+const versionArray = process.version
+ .substr(1)
+ .replace(/-.*$/, '')
+ .split('.')
+ .map((item) => {
+ return +item;
+ });
+
+const napi_multiple_commands = [
+ 'build',
+ 'clean',
+ 'configure',
+ 'package',
+ 'publish',
+ 'reveal',
+ 'testbinary',
+ 'testpackage',
+ 'unpublish'
+];
+
+const napi_build_version_tag = 'napi_build_version=';
+
+module.exports.get_napi_version = function() {
+ // returns the non-zero numeric napi version or undefined if napi is not supported.
+ // correctly supporting target requires an updated cross-walk
+ let version = process.versions.napi; // can be undefined
+ if (!version) { // this code should never need to be updated
+ if (versionArray[0] === 9 && versionArray[1] >= 3) version = 2; // 9.3.0+
+ else if (versionArray[0] === 8) version = 1; // 8.0.0+
+ }
+ return version;
+};
+
+module.exports.get_napi_version_as_string = function(target) {
+ // returns the napi version as a string or an empty string if napi is not supported.
+ const version = module.exports.get_napi_version(target);
+ return version ? '' + version : '';
+};
+
+module.exports.validate_package_json = function(package_json, opts) { // throws Error
+
+ const binary = package_json.binary;
+ const module_path_ok = pathOK(binary.module_path);
+ const remote_path_ok = pathOK(binary.remote_path);
+ const package_name_ok = pathOK(binary.package_name);
+ const napi_build_versions = module.exports.get_napi_build_versions(package_json, opts, true);
+ const napi_build_versions_raw = module.exports.get_napi_build_versions_raw(package_json);
+
+ if (napi_build_versions) {
+ napi_build_versions.forEach((napi_build_version)=> {
+ if (!(parseInt(napi_build_version, 10) === napi_build_version && napi_build_version > 0)) {
+ throw new Error('All values specified in napi_versions must be positive integers.');
+ }
+ });
+ }
+
+ if (napi_build_versions && (!module_path_ok || (!remote_path_ok && !package_name_ok))) {
+ throw new Error('When napi_versions is specified; module_path and either remote_path or ' +
+ "package_name must contain the substitution string '{napi_build_version}`.");
+ }
+
+ if ((module_path_ok || remote_path_ok || package_name_ok) && !napi_build_versions_raw) {
+ throw new Error("When the substitution string '{napi_build_version}` is specified in " +
+ 'module_path, remote_path, or package_name; napi_versions must also be specified.');
+ }
+
+ if (napi_build_versions && !module.exports.get_best_napi_build_version(package_json, opts) &&
+ module.exports.build_napi_only(package_json)) {
+ throw new Error(
+ 'The Node-API version of this Node instance is ' + module.exports.get_napi_version(opts ? opts.target : undefined) + '. ' +
+ 'This module supports Node-API version(s) ' + module.exports.get_napi_build_versions_raw(package_json) + '. ' +
+ 'This Node instance cannot run this module.');
+ }
+
+ if (napi_build_versions_raw && !napi_build_versions && module.exports.build_napi_only(package_json)) {
+ throw new Error(
+ 'The Node-API version of this Node instance is ' + module.exports.get_napi_version(opts ? opts.target : undefined) + '. ' +
+ 'This module supports Node-API version(s) ' + module.exports.get_napi_build_versions_raw(package_json) + '. ' +
+ 'This Node instance cannot run this module.');
+ }
+
+};
+
+function pathOK(path) {
+ return path && (path.indexOf('{napi_build_version}') !== -1 || path.indexOf('{node_napi_label}') !== -1);
+}
+
+module.exports.expand_commands = function(package_json, opts, commands) {
+ const expanded_commands = [];
+ const napi_build_versions = module.exports.get_napi_build_versions(package_json, opts);
+ commands.forEach((command)=> {
+ if (napi_build_versions && command.name === 'install') {
+ const napi_build_version = module.exports.get_best_napi_build_version(package_json, opts);
+ const args = napi_build_version ? [napi_build_version_tag + napi_build_version] : [];
+ expanded_commands.push({ name: command.name, args: args });
+ } else if (napi_build_versions && napi_multiple_commands.indexOf(command.name) !== -1) {
+ napi_build_versions.forEach((napi_build_version)=> {
+ const args = command.args.slice();
+ args.push(napi_build_version_tag + napi_build_version);
+ expanded_commands.push({ name: command.name, args: args });
+ });
+ } else {
+ expanded_commands.push(command);
+ }
+ });
+ return expanded_commands;
+};
+
+module.exports.get_napi_build_versions = function(package_json, opts, warnings) { // opts may be undefined
+ const log = require('npmlog');
+ let napi_build_versions = [];
+ const supported_napi_version = module.exports.get_napi_version(opts ? opts.target : undefined);
+ // remove duplicates, verify each napi version can actaully be built
+ if (package_json.binary && package_json.binary.napi_versions) {
+ package_json.binary.napi_versions.forEach((napi_version) => {
+ const duplicated = napi_build_versions.indexOf(napi_version) !== -1;
+ if (!duplicated && supported_napi_version && napi_version <= supported_napi_version) {
+ napi_build_versions.push(napi_version);
+ } else if (warnings && !duplicated && supported_napi_version) {
+ log.info('This Node instance does not support builds for Node-API version', napi_version);
+ }
+ });
+ }
+ if (opts && opts['build-latest-napi-version-only']) {
+ let latest_version = 0;
+ napi_build_versions.forEach((napi_version) => {
+ if (napi_version > latest_version) latest_version = napi_version;
+ });
+ napi_build_versions = latest_version ? [latest_version] : [];
+ }
+ return napi_build_versions.length ? napi_build_versions : undefined;
+};
+
+module.exports.get_napi_build_versions_raw = function(package_json) {
+ const napi_build_versions = [];
+ // remove duplicates
+ if (package_json.binary && package_json.binary.napi_versions) {
+ package_json.binary.napi_versions.forEach((napi_version) => {
+ if (napi_build_versions.indexOf(napi_version) === -1) {
+ napi_build_versions.push(napi_version);
+ }
+ });
+ }
+ return napi_build_versions.length ? napi_build_versions : undefined;
+};
+
+module.exports.get_command_arg = function(napi_build_version) {
+ return napi_build_version_tag + napi_build_version;
+};
+
+module.exports.get_napi_build_version_from_command_args = function(command_args) {
+ for (let i = 0; i < command_args.length; i++) {
+ const arg = command_args[i];
+ if (arg.indexOf(napi_build_version_tag) === 0) {
+ return parseInt(arg.substr(napi_build_version_tag.length), 10);
+ }
+ }
+ return undefined;
+};
+
+module.exports.swap_build_dir_out = function(napi_build_version) {
+ if (napi_build_version) {
+ const rm = require('rimraf');
+ rm.sync(module.exports.get_build_dir(napi_build_version));
+ fs.renameSync('build', module.exports.get_build_dir(napi_build_version));
+ }
+};
+
+module.exports.swap_build_dir_in = function(napi_build_version) {
+ if (napi_build_version) {
+ const rm = require('rimraf');
+ rm.sync('build');
+ fs.renameSync(module.exports.get_build_dir(napi_build_version), 'build');
+ }
+};
+
+module.exports.get_build_dir = function(napi_build_version) {
+ return 'build-tmp-napi-v' + napi_build_version;
+};
+
+module.exports.get_best_napi_build_version = function(package_json, opts) {
+ let best_napi_build_version = 0;
+ const napi_build_versions = module.exports.get_napi_build_versions(package_json, opts);
+ if (napi_build_versions) {
+ const our_napi_version = module.exports.get_napi_version(opts ? opts.target : undefined);
+ napi_build_versions.forEach((napi_build_version)=> {
+ if (napi_build_version > best_napi_build_version &&
+ napi_build_version <= our_napi_version) {
+ best_napi_build_version = napi_build_version;
+ }
+ });
+ }
+ return best_napi_build_version === 0 ? undefined : best_napi_build_version;
+};
+
+module.exports.build_napi_only = function(package_json) {
+ return package_json.binary && package_json.binary.package_name &&
+ package_json.binary.package_name.indexOf('{node_napi_label}') === -1;
+};
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/index.html b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/index.html
new file mode 100644
index 0000000..244466c
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/index.html
@@ -0,0 +1,26 @@
+<!doctype html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>Node-webkit-based module test</title>
+<script>
+function nwModuleTest(){
+ var util = require('util');
+ var moduleFolder = require('nw.gui').App.argv[0];
+ try {
+ require(moduleFolder);
+ } catch(e) {
+ if( process.platform !== 'win32' ){
+ util.log('nw-pre-gyp error:');
+ util.log(e.stack);
+ }
+ process.exit(1);
+ }
+ process.exit(0);
+}
+</script>
+</head>
+<body onload="nwModuleTest()">
+<h1>Node-webkit-based module test</h1>
+</body>
+</html>
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/package.json b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/package.json
new file mode 100644
index 0000000..71d03f8
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/nw-pre-gyp/package.json
@@ -0,0 +1,9 @@
+{
+"main": "index.html",
+"name": "nw-pre-gyp-module-test",
+"description": "Node-webkit-based module test.",
+"version": "0.0.1",
+"window": {
+ "show": false
+}
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/util/s3_setup.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/s3_setup.js
new file mode 100644
index 0000000..6b1b1a6
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/s3_setup.js
@@ -0,0 +1,163 @@
+'use strict';
+
+module.exports = exports;
+
+const url = require('url');
+const fs = require('fs');
+const path = require('path');
+
+module.exports.detect = function(opts, config) {
+ const to = opts.hosted_path;
+ const uri = url.parse(to);
+ config.prefix = (!uri.pathname || uri.pathname === '/') ? '' : uri.pathname.replace('/', '');
+ if (opts.bucket && opts.region) {
+ config.bucket = opts.bucket;
+ config.region = opts.region;
+ config.endpoint = opts.host;
+ config.s3ForcePathStyle = opts.s3ForcePathStyle;
+ } else {
+ const parts = uri.hostname.split('.s3');
+ const bucket = parts[0];
+ if (!bucket) {
+ return;
+ }
+ if (!config.bucket) {
+ config.bucket = bucket;
+ }
+ if (!config.region) {
+ const region = parts[1].slice(1).split('.')[0];
+ if (region === 'amazonaws') {
+ config.region = 'us-east-1';
+ } else {
+ config.region = region;
+ }
+ }
+ }
+};
+
+module.exports.get_s3 = function(config) {
+
+ if (process.env.node_pre_gyp_mock_s3) {
+ // here we're mocking. node_pre_gyp_mock_s3 is the scratch directory
+ // for the mock code.
+ const AWSMock = require('mock-aws-s3');
+ const os = require('os');
+
+ AWSMock.config.basePath = `${os.tmpdir()}/mock`;
+
+ const s3 = AWSMock.S3();
+
+ // wrapped callback maker. fs calls return code of ENOENT but AWS.S3 returns
+ // NotFound.
+ const wcb = (fn) => (err, ...args) => {
+ if (err && err.code === 'ENOENT') {
+ err.code = 'NotFound';
+ }
+ return fn(err, ...args);
+ };
+
+ return {
+ listObjects(params, callback) {
+ return s3.listObjects(params, wcb(callback));
+ },
+ headObject(params, callback) {
+ return s3.headObject(params, wcb(callback));
+ },
+ deleteObject(params, callback) {
+ return s3.deleteObject(params, wcb(callback));
+ },
+ putObject(params, callback) {
+ return s3.putObject(params, wcb(callback));
+ }
+ };
+ }
+
+ // if not mocking then setup real s3.
+ const AWS = require('aws-sdk');
+
+ AWS.config.update(config);
+ const s3 = new AWS.S3();
+
+ // need to change if additional options need to be specified.
+ return {
+ listObjects(params, callback) {
+ return s3.listObjects(params, callback);
+ },
+ headObject(params, callback) {
+ return s3.headObject(params, callback);
+ },
+ deleteObject(params, callback) {
+ return s3.deleteObject(params, callback);
+ },
+ putObject(params, callback) {
+ return s3.putObject(params, callback);
+ }
+ };
+
+
+
+};
+
+//
+// function to get the mocking control function. if not mocking it returns a no-op.
+//
+// if mocking it sets up the mock http interceptors that use the mocked s3 file system
+// to fulfill reponses.
+module.exports.get_mockS3Http = function() {
+ let mock_s3 = false;
+ if (!process.env.node_pre_gyp_mock_s3) {
+ return () => mock_s3;
+ }
+
+ const nock = require('nock');
+ // the bucket used for testing, as addressed by https.
+ const host = 'https://mapbox-node-pre-gyp-public-testing-bucket.s3.us-east-1.amazonaws.com';
+ const mockDir = process.env.node_pre_gyp_mock_s3 + '/mapbox-node-pre-gyp-public-testing-bucket';
+
+ // function to setup interceptors. they are "turned off" by setting mock_s3 to false.
+ const mock_http = () => {
+ // eslint-disable-next-line no-unused-vars
+ function get(uri, requestBody) {
+ const filepath = path.join(mockDir, uri.replace('%2B', '+'));
+
+ try {
+ fs.accessSync(filepath, fs.constants.R_OK);
+ } catch (e) {
+ return [404, 'not found\n'];
+ }
+
+ // the mock s3 functions just write to disk, so just read from it.
+ return [200, fs.createReadStream(filepath)];
+ }
+
+ // eslint-disable-next-line no-unused-vars
+ return nock(host)
+ .persist()
+ .get(() => mock_s3) // mock any uri for s3 when true
+ .reply(get);
+ };
+
+ // setup interceptors. they check the mock_s3 flag to determine whether to intercept.
+ mock_http(nock, host, mockDir);
+ // function to turn matching all requests to s3 on/off.
+ const mockS3Http = (action) => {
+ const previous = mock_s3;
+ if (action === 'off') {
+ mock_s3 = false;
+ } else if (action === 'on') {
+ mock_s3 = true;
+ } else if (action !== 'get') {
+ throw new Error(`illegal action for setMockHttp ${action}`);
+ }
+ return previous;
+ };
+
+ // call mockS3Http with the argument
+ // - 'on' - turn it on
+ // - 'off' - turn it off (used by fetch.test.js so it doesn't interfere with redirects)
+ // - 'get' - return true or false for 'on' or 'off'
+ return mockS3Http;
+};
+
+
+
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/lib/util/versioning.js b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/versioning.js
new file mode 100644
index 0000000..4409d7c
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/lib/util/versioning.js
@@ -0,0 +1,335 @@
+'use strict';
+
+module.exports = exports;
+
+const path = require('path');
+const semver = require('semver');
+const url = require('url');
+const detect_libc = require('detect-libc');
+const napi = require('./napi.js');
+
+let abi_crosswalk;
+
+// This is used for unit testing to provide a fake
+// ABI crosswalk that emulates one that is not updated
+// for the current version
+if (process.env.NODE_PRE_GYP_ABI_CROSSWALK) {
+ abi_crosswalk = require(process.env.NODE_PRE_GYP_ABI_CROSSWALK);
+} else {
+ abi_crosswalk = require('./abi_crosswalk.json');
+}
+
+const major_versions = {};
+Object.keys(abi_crosswalk).forEach((v) => {
+ const major = v.split('.')[0];
+ if (!major_versions[major]) {
+ major_versions[major] = v;
+ }
+});
+
+function get_electron_abi(runtime, target_version) {
+ if (!runtime) {
+ throw new Error('get_electron_abi requires valid runtime arg');
+ }
+ if (typeof target_version === 'undefined') {
+ // erroneous CLI call
+ throw new Error('Empty target version is not supported if electron is the target.');
+ }
+ // Electron guarantees that patch version update won't break native modules.
+ const sem_ver = semver.parse(target_version);
+ return runtime + '-v' + sem_ver.major + '.' + sem_ver.minor;
+}
+module.exports.get_electron_abi = get_electron_abi;
+
+function get_node_webkit_abi(runtime, target_version) {
+ if (!runtime) {
+ throw new Error('get_node_webkit_abi requires valid runtime arg');
+ }
+ if (typeof target_version === 'undefined') {
+ // erroneous CLI call
+ throw new Error('Empty target version is not supported if node-webkit is the target.');
+ }
+ return runtime + '-v' + target_version;
+}
+module.exports.get_node_webkit_abi = get_node_webkit_abi;
+
+function get_node_abi(runtime, versions) {
+ if (!runtime) {
+ throw new Error('get_node_abi requires valid runtime arg');
+ }
+ if (!versions) {
+ throw new Error('get_node_abi requires valid process.versions object');
+ }
+ const sem_ver = semver.parse(versions.node);
+ if (sem_ver.major === 0 && sem_ver.minor % 2) { // odd series
+ // https://github.com/mapbox/node-pre-gyp/issues/124
+ return runtime + '-v' + versions.node;
+ } else {
+ // process.versions.modules added in >= v0.10.4 and v0.11.7
+ // https://github.com/joyent/node/commit/ccabd4a6fa8a6eb79d29bc3bbe9fe2b6531c2d8e
+ return versions.modules ? runtime + '-v' + (+versions.modules) :
+ 'v8-' + versions.v8.split('.').slice(0, 2).join('.');
+ }
+}
+module.exports.get_node_abi = get_node_abi;
+
+function get_runtime_abi(runtime, target_version) {
+ if (!runtime) {
+ throw new Error('get_runtime_abi requires valid runtime arg');
+ }
+ if (runtime === 'node-webkit') {
+ return get_node_webkit_abi(runtime, target_version || process.versions['node-webkit']);
+ } else if (runtime === 'electron') {
+ return get_electron_abi(runtime, target_version || process.versions.electron);
+ } else {
+ if (runtime !== 'node') {
+ throw new Error("Unknown Runtime: '" + runtime + "'");
+ }
+ if (!target_version) {
+ return get_node_abi(runtime, process.versions);
+ } else {
+ let cross_obj;
+ // abi_crosswalk generated with ./scripts/abi_crosswalk.js
+ if (abi_crosswalk[target_version]) {
+ cross_obj = abi_crosswalk[target_version];
+ } else {
+ const target_parts = target_version.split('.').map((i) => { return +i; });
+ if (target_parts.length !== 3) { // parse failed
+ throw new Error('Unknown target version: ' + target_version);
+ }
+ /*
+ The below code tries to infer the last known ABI compatible version
+ that we have recorded in the abi_crosswalk.json when an exact match
+ is not possible. The reasons for this to exist are complicated:
+
+ - We support passing --target to be able to allow developers to package binaries for versions of node
+ that are not the same one as they are running. This might also be used in combination with the
+ --target_arch or --target_platform flags to also package binaries for alternative platforms
+ - When --target is passed we can't therefore determine the ABI (process.versions.modules) from the node
+ version that is running in memory
+ - So, therefore node-pre-gyp keeps an "ABI crosswalk" (lib/util/abi_crosswalk.json) to be able to look
+ this info up for all versions
+ - But we cannot easily predict what the future ABI will be for released versions
+ - And node-pre-gyp needs to be a `bundledDependency` in apps that depend on it in order to work correctly
+ by being fully available at install time.
+ - So, the speed of node releases and the bundled nature of node-pre-gyp mean that a new node-pre-gyp release
+ need to happen for every node.js/io.js/node-webkit/nw.js/atom-shell/etc release that might come online if
+ you want the `--target` flag to keep working for the latest version
+ - Which is impractical ^^
+ - Hence the below code guesses about future ABI to make the need to update node-pre-gyp less demanding.
+
+ In practice then you can have a dependency of your app like `node-sqlite3` that bundles a `node-pre-gyp` that
+ only knows about node v0.10.33 in the `abi_crosswalk.json` but target node v0.10.34 (which is assumed to be
+ ABI compatible with v0.10.33).
+
+ TODO: use semver module instead of custom version parsing
+ */
+ const major = target_parts[0];
+ let minor = target_parts[1];
+ let patch = target_parts[2];
+ // io.js: yeah if node.js ever releases 1.x this will break
+ // but that is unlikely to happen: https://github.com/iojs/io.js/pull/253#issuecomment-69432616
+ if (major === 1) {
+ // look for last release that is the same major version
+ // e.g. we assume io.js 1.x is ABI compatible with >= 1.0.0
+ while (true) {
+ if (minor > 0) --minor;
+ if (patch > 0) --patch;
+ const new_iojs_target = '' + major + '.' + minor + '.' + patch;
+ if (abi_crosswalk[new_iojs_target]) {
+ cross_obj = abi_crosswalk[new_iojs_target];
+ console.log('Warning: node-pre-gyp could not find exact match for ' + target_version);
+ console.log('Warning: but node-pre-gyp successfully choose ' + new_iojs_target + ' as ABI compatible target');
+ break;
+ }
+ if (minor === 0 && patch === 0) {
+ break;
+ }
+ }
+ } else if (major >= 2) {
+ // look for last release that is the same major version
+ if (major_versions[major]) {
+ cross_obj = abi_crosswalk[major_versions[major]];
+ console.log('Warning: node-pre-gyp could not find exact match for ' + target_version);
+ console.log('Warning: but node-pre-gyp successfully choose ' + major_versions[major] + ' as ABI compatible target');
+ }
+ } else if (major === 0) { // node.js
+ if (target_parts[1] % 2 === 0) { // for stable/even node.js series
+ // look for the last release that is the same minor release
+ // e.g. we assume node 0.10.x is ABI compatible with >= 0.10.0
+ while (--patch > 0) {
+ const new_node_target = '' + major + '.' + minor + '.' + patch;
+ if (abi_crosswalk[new_node_target]) {
+ cross_obj = abi_crosswalk[new_node_target];
+ console.log('Warning: node-pre-gyp could not find exact match for ' + target_version);
+ console.log('Warning: but node-pre-gyp successfully choose ' + new_node_target + ' as ABI compatible target');
+ break;
+ }
+ }
+ }
+ }
+ }
+ if (!cross_obj) {
+ throw new Error('Unsupported target version: ' + target_version);
+ }
+ // emulate process.versions
+ const versions_obj = {
+ node: target_version,
+ v8: cross_obj.v8 + '.0',
+ // abi_crosswalk uses 1 for node versions lacking process.versions.modules
+ // process.versions.modules added in >= v0.10.4 and v0.11.7
+ modules: cross_obj.node_abi > 1 ? cross_obj.node_abi : undefined
+ };
+ return get_node_abi(runtime, versions_obj);
+ }
+ }
+}
+module.exports.get_runtime_abi = get_runtime_abi;
+
+const required_parameters = [
+ 'module_name',
+ 'module_path',
+ 'host'
+];
+
+function validate_config(package_json, opts) {
+ const msg = package_json.name + ' package.json is not node-pre-gyp ready:\n';
+ const missing = [];
+ if (!package_json.main) {
+ missing.push('main');
+ }
+ if (!package_json.version) {
+ missing.push('version');
+ }
+ if (!package_json.name) {
+ missing.push('name');
+ }
+ if (!package_json.binary) {
+ missing.push('binary');
+ }
+ const o = package_json.binary;
+ if (o) {
+ required_parameters.forEach((p) => {
+ if (!o[p] || typeof o[p] !== 'string') {
+ missing.push('binary.' + p);
+ }
+ });
+ }
+
+ if (missing.length >= 1) {
+ throw new Error(msg + 'package.json must declare these properties: \n' + missing.join('\n'));
+ }
+ if (o) {
+ // enforce https over http
+ const protocol = url.parse(o.host).protocol;
+ if (protocol === 'http:') {
+ throw new Error("'host' protocol (" + protocol + ") is invalid - only 'https:' is accepted");
+ }
+ }
+ napi.validate_package_json(package_json, opts);
+}
+
+module.exports.validate_config = validate_config;
+
+function eval_template(template, opts) {
+ Object.keys(opts).forEach((key) => {
+ const pattern = '{' + key + '}';
+ while (template.indexOf(pattern) > -1) {
+ template = template.replace(pattern, opts[key]);
+ }
+ });
+ return template;
+}
+
+// url.resolve needs single trailing slash
+// to behave correctly, otherwise a double slash
+// may end up in the url which breaks requests
+// and a lacking slash may not lead to proper joining
+function fix_slashes(pathname) {
+ if (pathname.slice(-1) !== '/') {
+ return pathname + '/';
+ }
+ return pathname;
+}
+
+// remove double slashes
+// note: path.normalize will not work because
+// it will convert forward to back slashes
+function drop_double_slashes(pathname) {
+ return pathname.replace(/\/\//g, '/');
+}
+
+function get_process_runtime(versions) {
+ let runtime = 'node';
+ if (versions['node-webkit']) {
+ runtime = 'node-webkit';
+ } else if (versions.electron) {
+ runtime = 'electron';
+ }
+ return runtime;
+}
+
+module.exports.get_process_runtime = get_process_runtime;
+
+const default_package_name = '{module_name}-v{version}-{node_abi}-{platform}-{arch}.tar.gz';
+const default_remote_path = '';
+
+module.exports.evaluate = function(package_json, options, napi_build_version) {
+ options = options || {};
+ validate_config(package_json, options); // options is a suitable substitute for opts in this case
+ const v = package_json.version;
+ const module_version = semver.parse(v);
+ const runtime = options.runtime || get_process_runtime(process.versions);
+ const opts = {
+ name: package_json.name,
+ configuration: options.debug ? 'Debug' : 'Release',
+ debug: options.debug,
+ module_name: package_json.binary.module_name,
+ version: module_version.version,
+ prerelease: module_version.prerelease.length ? module_version.prerelease.join('.') : '',
+ build: module_version.build.length ? module_version.build.join('.') : '',
+ major: module_version.major,
+ minor: module_version.minor,
+ patch: module_version.patch,
+ runtime: runtime,
+ node_abi: get_runtime_abi(runtime, options.target),
+ node_abi_napi: napi.get_napi_version(options.target) ? 'napi' : get_runtime_abi(runtime, options.target),
+ napi_version: napi.get_napi_version(options.target), // non-zero numeric, undefined if unsupported
+ napi_build_version: napi_build_version || '',
+ node_napi_label: napi_build_version ? 'napi-v' + napi_build_version : get_runtime_abi(runtime, options.target),
+ target: options.target || '',
+ platform: options.target_platform || process.platform,
+ target_platform: options.target_platform || process.platform,
+ arch: options.target_arch || process.arch,
+ target_arch: options.target_arch || process.arch,
+ libc: options.target_libc || detect_libc.family || 'unknown',
+ module_main: package_json.main,
+ toolset: options.toolset || '', // address https://github.com/mapbox/node-pre-gyp/issues/119
+ bucket: package_json.binary.bucket,
+ region: package_json.binary.region,
+ s3ForcePathStyle: package_json.binary.s3ForcePathStyle || false
+ };
+ // support host mirror with npm config `--{module_name}_binary_host_mirror`
+ // e.g.: https://github.com/node-inspector/v8-profiler/blob/master/package.json#L25
+ // > npm install v8-profiler --profiler_binary_host_mirror=https://npm.taobao.org/mirrors/node-inspector/
+ const validModuleName = opts.module_name.replace('-', '_');
+ const host = process.env['npm_config_' + validModuleName + '_binary_host_mirror'] || package_json.binary.host;
+ opts.host = fix_slashes(eval_template(host, opts));
+ opts.module_path = eval_template(package_json.binary.module_path, opts);
+ // now we resolve the module_path to ensure it is absolute so that binding.gyp variables work predictably
+ if (options.module_root) {
+ // resolve relative to known module root: works for pre-binding require
+ opts.module_path = path.join(options.module_root, opts.module_path);
+ } else {
+ // resolve relative to current working directory: works for node-pre-gyp commands
+ opts.module_path = path.resolve(opts.module_path);
+ }
+ opts.module = path.join(opts.module_path, opts.module_name + '.node');
+ opts.remote_path = package_json.binary.remote_path ? drop_double_slashes(fix_slashes(eval_template(package_json.binary.remote_path, opts))) : default_remote_path;
+ const package_name = package_json.binary.package_name ? package_json.binary.package_name : default_package_name;
+ opts.package_name = eval_template(package_name, opts);
+ opts.staged_tarball = path.join('build/stage', opts.remote_path, opts.package_name);
+ opts.hosted_path = url.resolve(opts.host, opts.remote_path);
+ opts.hosted_tarball = url.resolve(opts.hosted_path, opts.package_name);
+ return opts;
+};
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/.bin/nopt b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/.bin/nopt
new file mode 120000
index 0000000..6b6566e
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/.bin/nopt
@@ -0,0 +1 @@
+../nopt/bin/nopt.js
\ No newline at end of file
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/.bin/semver b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/.bin/semver
new file mode 120000
index 0000000..5aaadf4
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/.bin/semver
@@ -0,0 +1 @@
+../semver/bin/semver.js
\ No newline at end of file
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/CHANGELOG.md b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/CHANGELOG.md
new file mode 100644
index 0000000..82a09fb
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/CHANGELOG.md
@@ -0,0 +1,58 @@
+### v4.0.1 (2016-12-14)
+
+#### WHOOPS
+
+* [`fb9b1ce`](https://github.com/npm/nopt/commit/fb9b1ce57b3c69b4f7819015be87719204f77ef6)
+ Merged so many patches at once that the code fencing
+ ([@adius](https://github.com/adius)) added got broken. Sorry,
+ ([@adius](https://github.com/adius))!
+ ([@othiym23](https://github.com/othiym23))
+
+### v4.0.0 (2016-12-13)
+
+#### BREAKING CHANGES
+
+* [`651d447`](https://github.com/npm/nopt/commit/651d4473946096d341a480bbe56793de3fc706aa)
+ When parsing String-typed arguments, if the next value is `""`, don't simply
+ swallow it. ([@samjonester](https://github.com/samjonester))
+
+#### PERFORMANCE TWEAKS
+
+* [`3370ce8`](https://github.com/npm/nopt/commit/3370ce87a7618ba228883861db84ddbcdff252a9)
+ Simplify initialization. ([@elidoran](https://github.com/elidoran))
+* [`356e58e`](https://github.com/npm/nopt/commit/356e58e3b3b431a4b1af7fd7bdee44c2c0526a09)
+ Store `Array.isArray(types[arg])` for reuse.
+ ([@elidoran](https://github.com/elidoran))
+* [`0d95e90`](https://github.com/npm/nopt/commit/0d95e90515844f266015b56d2c80b94e5d14a07e)
+ Interpret single-item type arrays as a single type.
+ ([@samjonester](https://github.com/samjonester))
+* [`07c69d3`](https://github.com/npm/nopt/commit/07c69d38b5186450941fbb505550becb78a0e925)
+ Simplify key-value extraction. ([@elidoran](https://github.com/elidoran))
+* [`39b6e5c`](https://github.com/npm/nopt/commit/39b6e5c65ac47f60cd43a1fbeece5cd4c834c254)
+ Only call `Date.parse(val)` once. ([@elidoran](https://github.com/elidoran))
+* [`934943d`](https://github.com/npm/nopt/commit/934943dffecb55123a2b15959fe2a359319a5dbd)
+ Use `osenv.home()` to find a user's home directory instead of assuming it's
+ always `$HOME`. ([@othiym23](https://github.com/othiym23))
+
+#### TEST & CI IMPROVEMENTS
+
+* [`326ffff`](https://github.com/npm/nopt/commit/326ffff7f78a00bcd316adecf69075f8a8093619)
+ Fix `/tmp` test to work on Windows.
+ ([@elidoran](https://github.com/elidoran))
+* [`c89d31a`](https://github.com/npm/nopt/commit/c89d31a49d14f2238bc6672db08da697bbc57f1b)
+ Only run Windows tests on Windows, only run Unix tests on a Unix.
+ ([@elidoran](https://github.com/elidoran))
+* [`affd3d1`](https://github.com/npm/nopt/commit/affd3d1d0addffa93006397b2013b18447339366)
+ Refresh Travis to run the tests against the currently-supported batch of npm
+ versions. ([@helio](https://github.com/helio)-frota)
+* [`55f9449`](https://github.com/npm/nopt/commit/55f94497d163ed4d16dd55fd6c4fb95cc440e66d)
+ `tap@8.0.1` ([@othiym23](https://github.com/othiym23))
+
+#### DOC TWEAKS
+
+* [`5271229`](https://github.com/npm/nopt/commit/5271229ee7c810217dd51616c086f5d9ab224581)
+ Use JavaScript code block for syntax highlighting.
+ ([@adius](https://github.com/adius))
+* [`c0d156f`](https://github.com/npm/nopt/commit/c0d156f229f9994c5dfcec4a8886eceff7a07682)
+ The code sample in the README had `many2: [ oneThing ]`, and now it has
+ `many2: [ two, things ]`. ([@silkentrance](https://github.com/silkentrance))
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/LICENSE b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/README.md b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/README.md
new file mode 100644
index 0000000..a99531c
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/README.md
@@ -0,0 +1,213 @@
+If you want to write an option parser, and have it be good, there are
+two ways to do it. The Right Way, and the Wrong Way.
+
+The Wrong Way is to sit down and write an option parser. We've all done
+that.
+
+The Right Way is to write some complex configurable program with so many
+options that you hit the limit of your frustration just trying to
+manage them all, and defer it with duct-tape solutions until you see
+exactly to the core of the problem, and finally snap and write an
+awesome option parser.
+
+If you want to write an option parser, don't write an option parser.
+Write a package manager, or a source control system, or a service
+restarter, or an operating system. You probably won't end up with a
+good one of those, but if you don't give up, and you are relentless and
+diligent enough in your procrastination, you may just end up with a very
+nice option parser.
+
+## USAGE
+
+```javascript
+// my-program.js
+var nopt = require("nopt")
+ , Stream = require("stream").Stream
+ , path = require("path")
+ , knownOpts = { "foo" : [String, null]
+ , "bar" : [Stream, Number]
+ , "baz" : path
+ , "bloo" : [ "big", "medium", "small" ]
+ , "flag" : Boolean
+ , "pick" : Boolean
+ , "many1" : [String, Array]
+ , "many2" : [path, Array]
+ }
+ , shortHands = { "foofoo" : ["--foo", "Mr. Foo"]
+ , "b7" : ["--bar", "7"]
+ , "m" : ["--bloo", "medium"]
+ , "p" : ["--pick"]
+ , "f" : ["--flag"]
+ }
+ // everything is optional.
+ // knownOpts and shorthands default to {}
+ // arg list defaults to process.argv
+ // slice defaults to 2
+ , parsed = nopt(knownOpts, shortHands, process.argv, 2)
+console.log(parsed)
+```
+
+This would give you support for any of the following:
+
+```console
+$ node my-program.js --foo "blerp" --no-flag
+{ "foo" : "blerp", "flag" : false }
+
+$ node my-program.js ---bar 7 --foo "Mr. Hand" --flag
+{ bar: 7, foo: "Mr. Hand", flag: true }
+
+$ node my-program.js --foo "blerp" -f -----p
+{ foo: "blerp", flag: true, pick: true }
+
+$ node my-program.js -fp --foofoo
+{ foo: "Mr. Foo", flag: true, pick: true }
+
+$ node my-program.js --foofoo -- -fp # -- stops the flag parsing.
+{ foo: "Mr. Foo", argv: { remain: ["-fp"] } }
+
+$ node my-program.js --blatzk -fp # unknown opts are ok.
+{ blatzk: true, flag: true, pick: true }
+
+$ node my-program.js --blatzk=1000 -fp # but you need to use = if they have a value
+{ blatzk: 1000, flag: true, pick: true }
+
+$ node my-program.js --no-blatzk -fp # unless they start with "no-"
+{ blatzk: false, flag: true, pick: true }
+
+$ node my-program.js --baz b/a/z # known paths are resolved.
+{ baz: "/Users/isaacs/b/a/z" }
+
+# if Array is one of the types, then it can take many
+# values, and will always be an array. The other types provided
+# specify what types are allowed in the list.
+
+$ node my-program.js --many1 5 --many1 null --many1 foo
+{ many1: ["5", "null", "foo"] }
+
+$ node my-program.js --many2 foo --many2 bar
+{ many2: ["/path/to/foo", "path/to/bar"] }
+```
+
+Read the tests at the bottom of `lib/nopt.js` for more examples of
+what this puppy can do.
+
+## Types
+
+The following types are supported, and defined on `nopt.typeDefs`
+
+* String: A normal string. No parsing is done.
+* path: A file system path. Gets resolved against cwd if not absolute.
+* url: A url. If it doesn't parse, it isn't accepted.
+* Number: Must be numeric.
+* Date: Must parse as a date. If it does, and `Date` is one of the options,
+ then it will return a Date object, not a string.
+* Boolean: Must be either `true` or `false`. If an option is a boolean,
+ then it does not need a value, and its presence will imply `true` as
+ the value. To negate boolean flags, do `--no-whatever` or `--whatever
+ false`
+* NaN: Means that the option is strictly not allowed. Any value will
+ fail.
+* Stream: An object matching the "Stream" class in node. Valuable
+ for use when validating programmatically. (npm uses this to let you
+ supply any WriteStream on the `outfd` and `logfd` config options.)
+* Array: If `Array` is specified as one of the types, then the value
+ will be parsed as a list of options. This means that multiple values
+ can be specified, and that the value will always be an array.
+
+If a type is an array of values not on this list, then those are
+considered valid values. For instance, in the example above, the
+`--bloo` option can only be one of `"big"`, `"medium"`, or `"small"`,
+and any other value will be rejected.
+
+When parsing unknown fields, `"true"`, `"false"`, and `"null"` will be
+interpreted as their JavaScript equivalents.
+
+You can also mix types and values, or multiple types, in a list. For
+instance `{ blah: [Number, null] }` would allow a value to be set to
+either a Number or null. When types are ordered, this implies a
+preference, and the first type that can be used to properly interpret
+the value will be used.
+
+To define a new type, add it to `nopt.typeDefs`. Each item in that
+hash is an object with a `type` member and a `validate` method. The
+`type` member is an object that matches what goes in the type list. The
+`validate` method is a function that gets called with `validate(data,
+key, val)`. Validate methods should assign `data[key]` to the valid
+value of `val` if it can be handled properly, or return boolean
+`false` if it cannot.
+
+You can also call `nopt.clean(data, types, typeDefs)` to clean up a
+config object and remove its invalid properties.
+
+## Error Handling
+
+By default, nopt outputs a warning to standard error when invalid values for
+known options are found. You can change this behavior by assigning a method
+to `nopt.invalidHandler`. This method will be called with
+the offending `nopt.invalidHandler(key, val, types)`.
+
+If no `nopt.invalidHandler` is assigned, then it will console.error
+its whining. If it is assigned to boolean `false` then the warning is
+suppressed.
+
+## Abbreviations
+
+Yes, they are supported. If you define options like this:
+
+```javascript
+{ "foolhardyelephants" : Boolean
+, "pileofmonkeys" : Boolean }
+```
+
+Then this will work:
+
+```bash
+node program.js --foolhar --pil
+node program.js --no-f --pileofmon
+# etc.
+```
+
+## Shorthands
+
+Shorthands are a hash of shorter option names to a snippet of args that
+they expand to.
+
+If multiple one-character shorthands are all combined, and the
+combination does not unambiguously match any other option or shorthand,
+then they will be broken up into their constituent parts. For example:
+
+```json
+{ "s" : ["--loglevel", "silent"]
+, "g" : "--global"
+, "f" : "--force"
+, "p" : "--parseable"
+, "l" : "--long"
+}
+```
+
+```bash
+npm ls -sgflp
+# just like doing this:
+npm ls --loglevel silent --global --force --long --parseable
+```
+
+## The Rest of the args
+
+The config object returned by nopt is given a special member called
+`argv`, which is an object with the following fields:
+
+* `remain`: The remaining args after all the parsing has occurred.
+* `original`: The args as they originally appeared.
+* `cooked`: The args after flags and shorthands are expanded.
+
+## Slicing
+
+Node programs are called with more or less the exact argv as it appears
+in C land, after the v8 and node-specific options have been plucked off.
+As such, `argv[0]` is always `node` and `argv[1]` is always the
+JavaScript program being run.
+
+That's usually not very useful to you. So they're sliced off by
+default. If you want them, then you can pass in `0` as the last
+argument, or any other number that you'd like to slice off the start of
+the list.
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/bin/nopt.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/bin/nopt.js
new file mode 100755
index 0000000..3232d4c
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/bin/nopt.js
@@ -0,0 +1,54 @@
+#!/usr/bin/env node
+var nopt = require("../lib/nopt")
+ , path = require("path")
+ , types = { num: Number
+ , bool: Boolean
+ , help: Boolean
+ , list: Array
+ , "num-list": [Number, Array]
+ , "str-list": [String, Array]
+ , "bool-list": [Boolean, Array]
+ , str: String
+ , clear: Boolean
+ , config: Boolean
+ , length: Number
+ , file: path
+ }
+ , shorthands = { s: [ "--str", "astring" ]
+ , b: [ "--bool" ]
+ , nb: [ "--no-bool" ]
+ , tft: [ "--bool-list", "--no-bool-list", "--bool-list", "true" ]
+ , "?": ["--help"]
+ , h: ["--help"]
+ , H: ["--help"]
+ , n: [ "--num", "125" ]
+ , c: ["--config"]
+ , l: ["--length"]
+ , f: ["--file"]
+ }
+ , parsed = nopt( types
+ , shorthands
+ , process.argv
+ , 2 )
+
+console.log("parsed", parsed)
+
+if (parsed.help) {
+ console.log("")
+ console.log("nopt cli tester")
+ console.log("")
+ console.log("types")
+ console.log(Object.keys(types).map(function M (t) {
+ var type = types[t]
+ if (Array.isArray(type)) {
+ return [t, type.map(function (type) { return type.name })]
+ }
+ return [t, type && type.name]
+ }).reduce(function (s, i) {
+ s[i[0]] = i[1]
+ return s
+ }, {}))
+ console.log("")
+ console.log("shorthands")
+ console.log(shorthands)
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/lib/nopt.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/lib/nopt.js
new file mode 100644
index 0000000..ecfa5da
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/lib/nopt.js
@@ -0,0 +1,441 @@
+// info about each config option.
+
+var debug = process.env.DEBUG_NOPT || process.env.NOPT_DEBUG
+ ? function () { console.error.apply(console, arguments) }
+ : function () {}
+
+var url = require("url")
+ , path = require("path")
+ , Stream = require("stream").Stream
+ , abbrev = require("abbrev")
+ , os = require("os")
+
+module.exports = exports = nopt
+exports.clean = clean
+
+exports.typeDefs =
+ { String : { type: String, validate: validateString }
+ , Boolean : { type: Boolean, validate: validateBoolean }
+ , url : { type: url, validate: validateUrl }
+ , Number : { type: Number, validate: validateNumber }
+ , path : { type: path, validate: validatePath }
+ , Stream : { type: Stream, validate: validateStream }
+ , Date : { type: Date, validate: validateDate }
+ }
+
+function nopt (types, shorthands, args, slice) {
+ args = args || process.argv
+ types = types || {}
+ shorthands = shorthands || {}
+ if (typeof slice !== "number") slice = 2
+
+ debug(types, shorthands, args, slice)
+
+ args = args.slice(slice)
+ var data = {}
+ , key
+ , argv = {
+ remain: [],
+ cooked: args,
+ original: args.slice(0)
+ }
+
+ parse(args, data, argv.remain, types, shorthands)
+ // now data is full
+ clean(data, types, exports.typeDefs)
+ data.argv = argv
+ Object.defineProperty(data.argv, 'toString', { value: function () {
+ return this.original.map(JSON.stringify).join(" ")
+ }, enumerable: false })
+ return data
+}
+
+function clean (data, types, typeDefs) {
+ typeDefs = typeDefs || exports.typeDefs
+ var remove = {}
+ , typeDefault = [false, true, null, String, Array]
+
+ Object.keys(data).forEach(function (k) {
+ if (k === "argv") return
+ var val = data[k]
+ , isArray = Array.isArray(val)
+ , type = types[k]
+ if (!isArray) val = [val]
+ if (!type) type = typeDefault
+ if (type === Array) type = typeDefault.concat(Array)
+ if (!Array.isArray(type)) type = [type]
+
+ debug("val=%j", val)
+ debug("types=", type)
+ val = val.map(function (val) {
+ // if it's an unknown value, then parse false/true/null/numbers/dates
+ if (typeof val === "string") {
+ debug("string %j", val)
+ val = val.trim()
+ if ((val === "null" && ~type.indexOf(null))
+ || (val === "true" &&
+ (~type.indexOf(true) || ~type.indexOf(Boolean)))
+ || (val === "false" &&
+ (~type.indexOf(false) || ~type.indexOf(Boolean)))) {
+ val = JSON.parse(val)
+ debug("jsonable %j", val)
+ } else if (~type.indexOf(Number) && !isNaN(val)) {
+ debug("convert to number", val)
+ val = +val
+ } else if (~type.indexOf(Date) && !isNaN(Date.parse(val))) {
+ debug("convert to date", val)
+ val = new Date(val)
+ }
+ }
+
+ if (!types.hasOwnProperty(k)) {
+ return val
+ }
+
+ // allow `--no-blah` to set 'blah' to null if null is allowed
+ if (val === false && ~type.indexOf(null) &&
+ !(~type.indexOf(false) || ~type.indexOf(Boolean))) {
+ val = null
+ }
+
+ var d = {}
+ d[k] = val
+ debug("prevalidated val", d, val, types[k])
+ if (!validate(d, k, val, types[k], typeDefs)) {
+ if (exports.invalidHandler) {
+ exports.invalidHandler(k, val, types[k], data)
+ } else if (exports.invalidHandler !== false) {
+ debug("invalid: "+k+"="+val, types[k])
+ }
+ return remove
+ }
+ debug("validated val", d, val, types[k])
+ return d[k]
+ }).filter(function (val) { return val !== remove })
+
+ // if we allow Array specifically, then an empty array is how we
+ // express 'no value here', not null. Allow it.
+ if (!val.length && type.indexOf(Array) === -1) {
+ debug('VAL HAS NO LENGTH, DELETE IT', val, k, type.indexOf(Array))
+ delete data[k]
+ }
+ else if (isArray) {
+ debug(isArray, data[k], val)
+ data[k] = val
+ } else data[k] = val[0]
+
+ debug("k=%s val=%j", k, val, data[k])
+ })
+}
+
+function validateString (data, k, val) {
+ data[k] = String(val)
+}
+
+function validatePath (data, k, val) {
+ if (val === true) return false
+ if (val === null) return true
+
+ val = String(val)
+
+ var isWin = process.platform === 'win32'
+ , homePattern = isWin ? /^~(\/|\\)/ : /^~\//
+ , home = os.homedir()
+
+ if (home && val.match(homePattern)) {
+ data[k] = path.resolve(home, val.substr(2))
+ } else {
+ data[k] = path.resolve(val)
+ }
+ return true
+}
+
+function validateNumber (data, k, val) {
+ debug("validate Number %j %j %j", k, val, isNaN(val))
+ if (isNaN(val)) return false
+ data[k] = +val
+}
+
+function validateDate (data, k, val) {
+ var s = Date.parse(val)
+ debug("validate Date %j %j %j", k, val, s)
+ if (isNaN(s)) return false
+ data[k] = new Date(val)
+}
+
+function validateBoolean (data, k, val) {
+ if (val instanceof Boolean) val = val.valueOf()
+ else if (typeof val === "string") {
+ if (!isNaN(val)) val = !!(+val)
+ else if (val === "null" || val === "false") val = false
+ else val = true
+ } else val = !!val
+ data[k] = val
+}
+
+function validateUrl (data, k, val) {
+ val = url.parse(String(val))
+ if (!val.host) return false
+ data[k] = val.href
+}
+
+function validateStream (data, k, val) {
+ if (!(val instanceof Stream)) return false
+ data[k] = val
+}
+
+function validate (data, k, val, type, typeDefs) {
+ // arrays are lists of types.
+ if (Array.isArray(type)) {
+ for (var i = 0, l = type.length; i < l; i ++) {
+ if (type[i] === Array) continue
+ if (validate(data, k, val, type[i], typeDefs)) return true
+ }
+ delete data[k]
+ return false
+ }
+
+ // an array of anything?
+ if (type === Array) return true
+
+ // NaN is poisonous. Means that something is not allowed.
+ if (type !== type) {
+ debug("Poison NaN", k, val, type)
+ delete data[k]
+ return false
+ }
+
+ // explicit list of values
+ if (val === type) {
+ debug("Explicitly allowed %j", val)
+ // if (isArray) (data[k] = data[k] || []).push(val)
+ // else data[k] = val
+ data[k] = val
+ return true
+ }
+
+ // now go through the list of typeDefs, validate against each one.
+ var ok = false
+ , types = Object.keys(typeDefs)
+ for (var i = 0, l = types.length; i < l; i ++) {
+ debug("test type %j %j %j", k, val, types[i])
+ var t = typeDefs[types[i]]
+ if (t &&
+ ((type && type.name && t.type && t.type.name) ? (type.name === t.type.name) : (type === t.type))) {
+ var d = {}
+ ok = false !== t.validate(d, k, val)
+ val = d[k]
+ if (ok) {
+ // if (isArray) (data[k] = data[k] || []).push(val)
+ // else data[k] = val
+ data[k] = val
+ break
+ }
+ }
+ }
+ debug("OK? %j (%j %j %j)", ok, k, val, types[i])
+
+ if (!ok) delete data[k]
+ return ok
+}
+
+function parse (args, data, remain, types, shorthands) {
+ debug("parse", args, data, remain)
+
+ var key = null
+ , abbrevs = abbrev(Object.keys(types))
+ , shortAbbr = abbrev(Object.keys(shorthands))
+
+ for (var i = 0; i < args.length; i ++) {
+ var arg = args[i]
+ debug("arg", arg)
+
+ if (arg.match(/^-{2,}$/)) {
+ // done with keys.
+ // the rest are args.
+ remain.push.apply(remain, args.slice(i + 1))
+ args[i] = "--"
+ break
+ }
+ var hadEq = false
+ if (arg.charAt(0) === "-" && arg.length > 1) {
+ var at = arg.indexOf('=')
+ if (at > -1) {
+ hadEq = true
+ var v = arg.substr(at + 1)
+ arg = arg.substr(0, at)
+ args.splice(i, 1, arg, v)
+ }
+
+ // see if it's a shorthand
+ // if so, splice and back up to re-parse it.
+ var shRes = resolveShort(arg, shorthands, shortAbbr, abbrevs)
+ debug("arg=%j shRes=%j", arg, shRes)
+ if (shRes) {
+ debug(arg, shRes)
+ args.splice.apply(args, [i, 1].concat(shRes))
+ if (arg !== shRes[0]) {
+ i --
+ continue
+ }
+ }
+ arg = arg.replace(/^-+/, "")
+ var no = null
+ while (arg.toLowerCase().indexOf("no-") === 0) {
+ no = !no
+ arg = arg.substr(3)
+ }
+
+ if (abbrevs[arg]) arg = abbrevs[arg]
+
+ var argType = types[arg]
+ var isTypeArray = Array.isArray(argType)
+ if (isTypeArray && argType.length === 1) {
+ isTypeArray = false
+ argType = argType[0]
+ }
+
+ var isArray = argType === Array ||
+ isTypeArray && argType.indexOf(Array) !== -1
+
+ // allow unknown things to be arrays if specified multiple times.
+ if (!types.hasOwnProperty(arg) && data.hasOwnProperty(arg)) {
+ if (!Array.isArray(data[arg]))
+ data[arg] = [data[arg]]
+ isArray = true
+ }
+
+ var val
+ , la = args[i + 1]
+
+ var isBool = typeof no === 'boolean' ||
+ argType === Boolean ||
+ isTypeArray && argType.indexOf(Boolean) !== -1 ||
+ (typeof argType === 'undefined' && !hadEq) ||
+ (la === "false" &&
+ (argType === null ||
+ isTypeArray && ~argType.indexOf(null)))
+
+ if (isBool) {
+ // just set and move along
+ val = !no
+ // however, also support --bool true or --bool false
+ if (la === "true" || la === "false") {
+ val = JSON.parse(la)
+ la = null
+ if (no) val = !val
+ i ++
+ }
+
+ // also support "foo":[Boolean, "bar"] and "--foo bar"
+ if (isTypeArray && la) {
+ if (~argType.indexOf(la)) {
+ // an explicit type
+ val = la
+ i ++
+ } else if ( la === "null" && ~argType.indexOf(null) ) {
+ // null allowed
+ val = null
+ i ++
+ } else if ( !la.match(/^-{2,}[^-]/) &&
+ !isNaN(la) &&
+ ~argType.indexOf(Number) ) {
+ // number
+ val = +la
+ i ++
+ } else if ( !la.match(/^-[^-]/) && ~argType.indexOf(String) ) {
+ // string
+ val = la
+ i ++
+ }
+ }
+
+ if (isArray) (data[arg] = data[arg] || []).push(val)
+ else data[arg] = val
+
+ continue
+ }
+
+ if (argType === String) {
+ if (la === undefined) {
+ la = ""
+ } else if (la.match(/^-{1,2}[^-]+/)) {
+ la = ""
+ i --
+ }
+ }
+
+ if (la && la.match(/^-{2,}$/)) {
+ la = undefined
+ i --
+ }
+
+ val = la === undefined ? true : la
+ if (isArray) (data[arg] = data[arg] || []).push(val)
+ else data[arg] = val
+
+ i ++
+ continue
+ }
+ remain.push(arg)
+ }
+}
+
+function resolveShort (arg, shorthands, shortAbbr, abbrevs) {
+ // handle single-char shorthands glommed together, like
+ // npm ls -glp, but only if there is one dash, and only if
+ // all of the chars are single-char shorthands, and it's
+ // not a match to some other abbrev.
+ arg = arg.replace(/^-+/, '')
+
+ // if it's an exact known option, then don't go any further
+ if (abbrevs[arg] === arg)
+ return null
+
+ // if it's an exact known shortopt, same deal
+ if (shorthands[arg]) {
+ // make it an array, if it's a list of words
+ if (shorthands[arg] && !Array.isArray(shorthands[arg]))
+ shorthands[arg] = shorthands[arg].split(/\s+/)
+
+ return shorthands[arg]
+ }
+
+ // first check to see if this arg is a set of single-char shorthands
+ var singles = shorthands.___singles
+ if (!singles) {
+ singles = Object.keys(shorthands).filter(function (s) {
+ return s.length === 1
+ }).reduce(function (l,r) {
+ l[r] = true
+ return l
+ }, {})
+ shorthands.___singles = singles
+ debug('shorthand singles', singles)
+ }
+
+ var chrs = arg.split("").filter(function (c) {
+ return singles[c]
+ })
+
+ if (chrs.join("") === arg) return chrs.map(function (c) {
+ return shorthands[c]
+ }).reduce(function (l, r) {
+ return l.concat(r)
+ }, [])
+
+
+ // if it's an arg abbrev, and not a literal shorthand, then prefer the arg
+ if (abbrevs[arg] && !shorthands[arg])
+ return null
+
+ // if it's an abbr for a shorthand, then use that
+ if (shortAbbr[arg])
+ arg = shortAbbr[arg]
+
+ // make it an array, if it's a list of words
+ if (shorthands[arg] && !Array.isArray(shorthands[arg]))
+ shorthands[arg] = shorthands[arg].split(/\s+/)
+
+ return shorthands[arg]
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/package.json b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/package.json
new file mode 100644
index 0000000..235ddc0
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/nopt/package.json
@@ -0,0 +1,67 @@
+{
+ "_from": "nopt@^5.0.0",
+ "_id": "nopt@5.0.0",
+ "_inBundle": false,
+ "_integrity": "sha512-Tbj67rffqceeLpcRXrT7vKAN8CwfPeIBgM7E6iBkmKLV7bEMwpGgYLGv0jACUsECaa/vuxP0IjEont6umdMgtQ==",
+ "_location": "/@mapbox/node-pre-gyp/nopt",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "nopt@^5.0.0",
+ "name": "nopt",
+ "escapedName": "nopt",
+ "rawSpec": "^5.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^5.0.0"
+ },
+ "_requiredBy": [
+ "/@mapbox/node-pre-gyp"
+ ],
+ "_resolved": "https://registry.npmjs.org/nopt/-/nopt-5.0.0.tgz",
+ "_shasum": "530942bb58a512fccafe53fe210f13a25355dc88",
+ "_spec": "nopt@^5.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/@mapbox/node-pre-gyp",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bin": {
+ "nopt": "bin/nopt.js"
+ },
+ "bugs": {
+ "url": "https://github.com/npm/nopt/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "abbrev": "1"
+ },
+ "deprecated": false,
+ "description": "Option parsing for Node, supporting types, shorthands, etc. Used by npm.",
+ "devDependencies": {
+ "tap": "^14.10.6"
+ },
+ "engines": {
+ "node": ">=6"
+ },
+ "files": [
+ "bin",
+ "lib"
+ ],
+ "homepage": "https://github.com/npm/nopt#readme",
+ "license": "ISC",
+ "main": "lib/nopt.js",
+ "name": "nopt",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/npm/nopt.git"
+ },
+ "scripts": {
+ "postversion": "npm publish",
+ "prepublishOnly": "git push origin --follow-tags",
+ "preversion": "npm test",
+ "test": "tap test/*.js"
+ },
+ "version": "5.0.0"
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/CHANGELOG.md b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/CHANGELOG.md
new file mode 100644
index 0000000..220af17
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/CHANGELOG.md
@@ -0,0 +1,111 @@
+# changes log
+
+## 7.3.0
+
+* Add `subset(r1, r2)` method to determine if `r1` range is entirely
+ contained by `r2` range.
+
+## 7.2.3
+
+* Fix handling of `includePrelease` mode where version ranges like `1.0.0 -
+ 2.0.0` would include `3.0.0-pre` and not `1.0.0-pre`.
+
+## 7.2.2
+
+* Fix bug where `2.0.0-pre` would be included in `^1.0.0` if
+ `includePrerelease` was set to true.
+
+## 7.2.0
+
+* Add `simplifyRange` method to attempt to generate a more human-readable
+ range expression that is equivalent to a supplied range, for a given set
+ of versions.
+
+## 7.1.2
+
+* Remove fancy lazy-loading logic, as it was causing problems for webpack
+ users.
+
+## 7.1.0
+
+* Add `require('semver/preload')` to load the entire module without using
+ lazy getter methods.
+
+## 7.0.0
+
+* Refactor module into separate files for better tree-shaking
+* Drop support for very old node versions, use const/let, `=>` functions,
+ and classes.
+
+## 6.3.0
+
+* Expose the token enum on the exports
+
+## 6.2.0
+
+* Coerce numbers to strings when passed to semver.coerce()
+* Add `rtl` option to coerce from right to left
+
+## 6.1.3
+
+* Handle X-ranges properly in includePrerelease mode
+
+## 6.1.2
+
+* Do not throw when testing invalid version strings
+
+## 6.1.1
+
+* Add options support for semver.coerce()
+* Handle undefined version passed to Range.test
+
+## 6.1.0
+
+* Add semver.compareBuild function
+* Support `*` in semver.intersects
+
+## 6.0
+
+* Fix `intersects` logic.
+
+ This is technically a bug fix, but since it is also a change to behavior
+ that may require users updating their code, it is marked as a major
+ version increment.
+
+## 5.7
+
+* Add `minVersion` method
+
+## 5.6
+
+* Move boolean `loose` param to an options object, with
+ backwards-compatibility protection.
+* Add ability to opt out of special prerelease version handling with
+ the `includePrerelease` option flag.
+
+## 5.5
+
+* Add version coercion capabilities
+
+## 5.4
+
+* Add intersection checking
+
+## 5.3
+
+* Add `minSatisfying` method
+
+## 5.2
+
+* Add `prerelease(v)` that returns prerelease components
+
+## 5.1
+
+* Add Backus-Naur for ranges
+* Remove excessively cute inspection methods
+
+## 5.0
+
+* Remove AMD/Browserified build artifacts
+* Fix ltr and gtr when using the `*` range
+* Fix for range `*` with a prerelease identifier
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/LICENSE b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/README.md b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/README.md
new file mode 100644
index 0000000..9bef045
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/README.md
@@ -0,0 +1,566 @@
+semver(1) -- The semantic versioner for npm
+===========================================
+
+## Install
+
+```bash
+npm install semver
+````
+
+## Usage
+
+As a node module:
+
+```js
+const semver = require('semver')
+
+semver.valid('1.2.3') // '1.2.3'
+semver.valid('a.b.c') // null
+semver.clean(' =v1.2.3 ') // '1.2.3'
+semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
+semver.gt('1.2.3', '9.8.7') // false
+semver.lt('1.2.3', '9.8.7') // true
+semver.minVersion('>=1.0.0') // '1.0.0'
+semver.valid(semver.coerce('v2')) // '2.0.0'
+semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'
+```
+
+You can also just load the module for the function that you care about, if
+you'd like to minimize your footprint.
+
+```js
+// load the whole API at once in a single object
+const semver = require('semver')
+
+// or just load the bits you need
+// all of them listed here, just pick and choose what you want
+
+// classes
+const SemVer = require('semver/classes/semver')
+const Comparator = require('semver/classes/comparator')
+const Range = require('semver/classes/range')
+
+// functions for working with versions
+const semverParse = require('semver/functions/parse')
+const semverValid = require('semver/functions/valid')
+const semverClean = require('semver/functions/clean')
+const semverInc = require('semver/functions/inc')
+const semverDiff = require('semver/functions/diff')
+const semverMajor = require('semver/functions/major')
+const semverMinor = require('semver/functions/minor')
+const semverPatch = require('semver/functions/patch')
+const semverPrerelease = require('semver/functions/prerelease')
+const semverCompare = require('semver/functions/compare')
+const semverRcompare = require('semver/functions/rcompare')
+const semverCompareLoose = require('semver/functions/compare-loose')
+const semverCompareBuild = require('semver/functions/compare-build')
+const semverSort = require('semver/functions/sort')
+const semverRsort = require('semver/functions/rsort')
+
+// low-level comparators between versions
+const semverGt = require('semver/functions/gt')
+const semverLt = require('semver/functions/lt')
+const semverEq = require('semver/functions/eq')
+const semverNeq = require('semver/functions/neq')
+const semverGte = require('semver/functions/gte')
+const semverLte = require('semver/functions/lte')
+const semverCmp = require('semver/functions/cmp')
+const semverCoerce = require('semver/functions/coerce')
+
+// working with ranges
+const semverSatisfies = require('semver/functions/satisfies')
+const semverMaxSatisfying = require('semver/ranges/max-satisfying')
+const semverMinSatisfying = require('semver/ranges/min-satisfying')
+const semverToComparators = require('semver/ranges/to-comparators')
+const semverMinVersion = require('semver/ranges/min-version')
+const semverValidRange = require('semver/ranges/valid')
+const semverOutside = require('semver/ranges/outside')
+const semverGtr = require('semver/ranges/gtr')
+const semverLtr = require('semver/ranges/ltr')
+const semverIntersects = require('semver/ranges/intersects')
+const simplifyRange = require('semver/ranges/simplify')
+const rangeSubset = require('semver/ranges/subset')
+```
+
+As a command-line utility:
+
+```
+$ semver -h
+
+A JavaScript implementation of the https://semver.org/ specification
+Copyright Isaac Z. Schlueter
+
+Usage: semver [options] <version> [<version> [...]]
+Prints valid versions sorted by SemVer precedence
+
+Options:
+-r --range <range>
+ Print versions that match the specified range.
+
+-i --increment [<level>]
+ Increment a version by the specified level. Level can
+ be one of: major, minor, patch, premajor, preminor,
+ prepatch, or prerelease. Default level is 'patch'.
+ Only one version may be specified.
+
+--preid <identifier>
+ Identifier to be used to prefix premajor, preminor,
+ prepatch or prerelease version increments.
+
+-l --loose
+ Interpret versions and ranges loosely
+
+-p --include-prerelease
+ Always include prerelease versions in range matching
+
+-c --coerce
+ Coerce a string into SemVer if possible
+ (does not imply --loose)
+
+--rtl
+ Coerce version strings right to left
+
+--ltr
+ Coerce version strings left to right (default)
+
+Program exits successfully if any valid version satisfies
+all supplied ranges, and prints all satisfying versions.
+
+If no satisfying versions are found, then exits failure.
+
+Versions are printed in ascending order, so supplying
+multiple versions to the utility will just sort them.
+```
+
+## Versions
+
+A "version" is described by the `v2.0.0` specification found at
+<https://semver.org/>.
+
+A leading `"="` or `"v"` character is stripped off and ignored.
+
+## Ranges
+
+A `version range` is a set of `comparators` which specify versions
+that satisfy the range.
+
+A `comparator` is composed of an `operator` and a `version`. The set
+of primitive `operators` is:
+
+* `<` Less than
+* `<=` Less than or equal to
+* `>` Greater than
+* `>=` Greater than or equal to
+* `=` Equal. If no operator is specified, then equality is assumed,
+ so this operator is optional, but MAY be included.
+
+For example, the comparator `>=1.2.7` would match the versions
+`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`
+or `1.1.0`.
+
+Comparators can be joined by whitespace to form a `comparator set`,
+which is satisfied by the **intersection** of all of the comparators
+it includes.
+
+A range is composed of one or more comparator sets, joined by `||`. A
+version matches a range if and only if every comparator in at least
+one of the `||`-separated comparator sets is satisfied by the version.
+
+For example, the range `>=1.2.7 <1.3.0` would match the versions
+`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,
+or `1.1.0`.
+
+The range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,
+`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.
+
+### Prerelease Tags
+
+If a version has a prerelease tag (for example, `1.2.3-alpha.3`) then
+it will only be allowed to satisfy comparator sets if at least one
+comparator with the same `[major, minor, patch]` tuple also has a
+prerelease tag.
+
+For example, the range `>1.2.3-alpha.3` would be allowed to match the
+version `1.2.3-alpha.7`, but it would *not* be satisfied by
+`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically "greater
+than" `1.2.3-alpha.3` according to the SemVer sort rules. The version
+range only accepts prerelease tags on the `1.2.3` version. The
+version `3.4.5` *would* satisfy the range, because it does not have a
+prerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.
+
+The purpose for this behavior is twofold. First, prerelease versions
+frequently are updated very quickly, and contain many breaking changes
+that are (by the author's design) not yet fit for public consumption.
+Therefore, by default, they are excluded from range matching
+semantics.
+
+Second, a user who has opted into using a prerelease version has
+clearly indicated the intent to use *that specific* set of
+alpha/beta/rc versions. By including a prerelease tag in the range,
+the user is indicating that they are aware of the risk. However, it
+is still not appropriate to assume that they have opted into taking a
+similar risk on the *next* set of prerelease versions.
+
+Note that this behavior can be suppressed (treating all prerelease
+versions as if they were normal versions, for the purpose of range
+matching) by setting the `includePrerelease` flag on the options
+object to any
+[functions](https://github.com/npm/node-semver#functions) that do
+range matching.
+
+#### Prerelease Identifiers
+
+The method `.inc` takes an additional `identifier` string argument that
+will append the value of the string as a prerelease identifier:
+
+```javascript
+semver.inc('1.2.3', 'prerelease', 'beta')
+// '1.2.4-beta.0'
+```
+
+command-line example:
+
+```bash
+$ semver 1.2.3 -i prerelease --preid beta
+1.2.4-beta.0
+```
+
+Which then can be used to increment further:
+
+```bash
+$ semver 1.2.4-beta.0 -i prerelease
+1.2.4-beta.1
+```
+
+### Advanced Range Syntax
+
+Advanced range syntax desugars to primitive comparators in
+deterministic ways.
+
+Advanced ranges may be combined in the same way as primitive
+comparators using white space or `||`.
+
+#### Hyphen Ranges `X.Y.Z - A.B.C`
+
+Specifies an inclusive set.
+
+* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`
+
+If a partial version is provided as the first version in the inclusive
+range, then the missing pieces are replaced with zeroes.
+
+* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`
+
+If a partial version is provided as the second version in the
+inclusive range, then all versions that start with the supplied parts
+of the tuple are accepted, but nothing that would be greater than the
+provided tuple parts.
+
+* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0-0`
+* `1.2.3 - 2` := `>=1.2.3 <3.0.0-0`
+
+#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`
+
+Any of `X`, `x`, or `*` may be used to "stand in" for one of the
+numeric values in the `[major, minor, patch]` tuple.
+
+* `*` := `>=0.0.0` (Any version satisfies)
+* `1.x` := `>=1.0.0 <2.0.0-0` (Matching major version)
+* `1.2.x` := `>=1.2.0 <1.3.0-0` (Matching major and minor versions)
+
+A partial version range is treated as an X-Range, so the special
+character is in fact optional.
+
+* `""` (empty string) := `*` := `>=0.0.0`
+* `1` := `1.x.x` := `>=1.0.0 <2.0.0-0`
+* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0-0`
+
+#### Tilde Ranges `~1.2.3` `~1.2` `~1`
+
+Allows patch-level changes if a minor version is specified on the
+comparator. Allows minor-level changes if not.
+
+* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0-0`
+* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0-0` (Same as `1.2.x`)
+* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0-0` (Same as `1.x`)
+* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0-0`
+* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0-0` (Same as `0.2.x`)
+* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0-0` (Same as `0.x`)
+* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0-0` Note that prereleases in
+ the `1.2.3` version will be allowed, if they are greater than or
+ equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but
+ `1.2.4-beta.2` would not, because it is a prerelease of a
+ different `[major, minor, patch]` tuple.
+
+#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`
+
+Allows changes that do not modify the left-most non-zero element in the
+`[major, minor, patch]` tuple. In other words, this allows patch and
+minor updates for versions `1.0.0` and above, patch updates for
+versions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.
+
+Many authors treat a `0.x` version as if the `x` were the major
+"breaking-change" indicator.
+
+Caret ranges are ideal when an author may make breaking changes
+between `0.2.4` and `0.3.0` releases, which is a common practice.
+However, it presumes that there will *not* be breaking changes between
+`0.2.4` and `0.2.5`. It allows for changes that are presumed to be
+additive (but non-breaking), according to commonly observed practices.
+
+* `^1.2.3` := `>=1.2.3 <2.0.0-0`
+* `^0.2.3` := `>=0.2.3 <0.3.0-0`
+* `^0.0.3` := `>=0.0.3 <0.0.4-0`
+* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0-0` Note that prereleases in
+ the `1.2.3` version will be allowed, if they are greater than or
+ equal to `beta.2`. So, `1.2.3-beta.4` would be allowed, but
+ `1.2.4-beta.2` would not, because it is a prerelease of a
+ different `[major, minor, patch]` tuple.
+* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4-0` Note that prereleases in the
+ `0.0.3` version *only* will be allowed, if they are greater than or
+ equal to `beta`. So, `0.0.3-pr.2` would be allowed.
+
+When parsing caret ranges, a missing `patch` value desugars to the
+number `0`, but will allow flexibility within that value, even if the
+major and minor versions are both `0`.
+
+* `^1.2.x` := `>=1.2.0 <2.0.0-0`
+* `^0.0.x` := `>=0.0.0 <0.1.0-0`
+* `^0.0` := `>=0.0.0 <0.1.0-0`
+
+A missing `minor` and `patch` values will desugar to zero, but also
+allow flexibility within those values, even if the major version is
+zero.
+
+* `^1.x` := `>=1.0.0 <2.0.0-0`
+* `^0.x` := `>=0.0.0 <1.0.0-0`
+
+### Range Grammar
+
+Putting all this together, here is a Backus-Naur grammar for ranges,
+for the benefit of parser authors:
+
+```bnf
+range-set ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen ::= partial ' - ' partial
+simple ::= primitive | partial | tilde | caret
+primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr ::= 'x' | 'X' | '*' | nr
+nr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *
+tilde ::= '~' partial
+caret ::= '^' partial
+qualifier ::= ( '-' pre )? ( '+' build )?
+pre ::= parts
+build ::= parts
+parts ::= part ( '.' part ) *
+part ::= nr | [-0-9A-Za-z]+
+```
+
+## Functions
+
+All methods and classes take a final `options` object argument. All
+options in this object are `false` by default. The options supported
+are:
+
+- `loose` Be more forgiving about not-quite-valid semver strings.
+ (Any resulting output will always be 100% strict compliant, of
+ course.) For backwards compatibility reasons, if the `options`
+ argument is a boolean value instead of an object, it is interpreted
+ to be the `loose` param.
+- `includePrerelease` Set to suppress the [default
+ behavior](https://github.com/npm/node-semver#prerelease-tags) of
+ excluding prerelease tagged versions from ranges unless they are
+ explicitly opted into.
+
+Strict-mode Comparators and Ranges will be strict about the SemVer
+strings that they parse.
+
+* `valid(v)`: Return the parsed version, or null if it's not valid.
+* `inc(v, release)`: Return the version incremented by the release
+ type (`major`, `premajor`, `minor`, `preminor`, `patch`,
+ `prepatch`, or `prerelease`), or null if it's not valid
+ * `premajor` in one call will bump the version up to the next major
+ version and down to a prerelease of that major version.
+ `preminor`, and `prepatch` work the same way.
+ * If called from a non-prerelease version, the `prerelease` will work the
+ same as `prepatch`. It increments the patch version, then makes a
+ prerelease. If the input version is already a prerelease it simply
+ increments it.
+* `prerelease(v)`: Returns an array of prerelease components, or null
+ if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`
+* `major(v)`: Return the major version number.
+* `minor(v)`: Return the minor version number.
+* `patch(v)`: Return the patch version number.
+* `intersects(r1, r2, loose)`: Return true if the two supplied ranges
+ or comparators intersect.
+* `parse(v)`: Attempt to parse a string as a semantic version, returning either
+ a `SemVer` object or `null`.
+
+### Comparison
+
+* `gt(v1, v2)`: `v1 > v2`
+* `gte(v1, v2)`: `v1 >= v2`
+* `lt(v1, v2)`: `v1 < v2`
+* `lte(v1, v2)`: `v1 <= v2`
+* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,
+ even if they're not the exact same string. You already know how to
+ compare strings.
+* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.
+* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call
+ the corresponding function above. `"==="` and `"!=="` do simple
+ string comparison, but are included for completeness. Throws if an
+ invalid comparison string is provided.
+* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if
+ `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.
+* `rcompare(v1, v2)`: The reverse of compare. Sorts an array of versions
+ in descending order when passed to `Array.sort()`.
+* `compareBuild(v1, v2)`: The same as `compare` but considers `build` when two versions
+ are equal. Sorts in ascending order if passed to `Array.sort()`.
+ `v2` is greater. Sorts in ascending order if passed to `Array.sort()`.
+* `diff(v1, v2)`: Returns difference between two versions by the release type
+ (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),
+ or null if the versions are the same.
+
+### Comparators
+
+* `intersects(comparator)`: Return true if the comparators intersect
+
+### Ranges
+
+* `validRange(range)`: Return the valid range or null if it's not valid
+* `satisfies(version, range)`: Return true if the version satisfies the
+ range.
+* `maxSatisfying(versions, range)`: Return the highest version in the list
+ that satisfies the range, or `null` if none of them do.
+* `minSatisfying(versions, range)`: Return the lowest version in the list
+ that satisfies the range, or `null` if none of them do.
+* `minVersion(range)`: Return the lowest version that can possibly match
+ the given range.
+* `gtr(version, range)`: Return `true` if version is greater than all the
+ versions possible in the range.
+* `ltr(version, range)`: Return `true` if version is less than all the
+ versions possible in the range.
+* `outside(version, range, hilo)`: Return true if the version is outside
+ the bounds of the range in either the high or low direction. The
+ `hilo` argument must be either the string `'>'` or `'<'`. (This is
+ the function called by `gtr` and `ltr`.)
+* `intersects(range)`: Return true if any of the ranges comparators intersect
+* `simplifyRange(versions, range)`: Return a "simplified" range that
+ matches the same items in `versions` list as the range specified. Note
+ that it does *not* guarantee that it would match the same versions in all
+ cases, only for the set of versions provided. This is useful when
+ generating ranges by joining together multiple versions with `||`
+ programmatically, to provide the user with something a bit more
+ ergonomic. If the provided range is shorter in string-length than the
+ generated range, then that is returned.
+* `subset(subRange, superRange)`: Return `true` if the `subRange` range is
+ entirely contained by the `superRange` range.
+
+Note that, since ranges may be non-contiguous, a version might not be
+greater than a range, less than a range, *or* satisfy a range! For
+example, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`
+until `2.0.0`, so the version `1.2.10` would not be greater than the
+range (because `2.0.1` satisfies, which is higher), nor less than the
+range (since `1.2.8` satisfies, which is lower), and it also does not
+satisfy the range.
+
+If you want to know if a version satisfies or does not satisfy a
+range, use the `satisfies(version, range)` function.
+
+### Coercion
+
+* `coerce(version, options)`: Coerces a string to semver if possible
+
+This aims to provide a very forgiving translation of a non-semver string to
+semver. It looks for the first digit in a string, and consumes all
+remaining characters which satisfy at least a partial semver (e.g., `1`,
+`1.2`, `1.2.3`) up to the max permitted length (256 characters). Longer
+versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`). All
+surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes
+`3.4.0`). Only text which lacks digits will fail coercion (`version one`
+is not valid). The maximum length for any semver component considered for
+coercion is 16 characters; longer components will be ignored
+(`10000000000000000.4.7.4` becomes `4.7.4`). The maximum value for any
+semver component is `Number.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value
+components are invalid (`9999999999999999.4.7.4` is likely invalid).
+
+If the `options.rtl` flag is set, then `coerce` will return the right-most
+coercible tuple that does not share an ending index with a longer coercible
+tuple. For example, `1.2.3.4` will return `2.3.4` in rtl mode, not
+`4.0.0`. `1.2.3/4` will return `4.0.0`, because the `4` is not a part of
+any other overlapping SemVer tuple.
+
+### Clean
+
+* `clean(version)`: Clean a string to be a valid semver if possible
+
+This will return a cleaned and trimmed semver version. If the provided
+version is not valid a null will be returned. This does not work for
+ranges.
+
+ex.
+* `s.clean(' = v 2.1.5foo')`: `null`
+* `s.clean(' = v 2.1.5foo', { loose: true })`: `'2.1.5-foo'`
+* `s.clean(' = v 2.1.5-foo')`: `null`
+* `s.clean(' = v 2.1.5-foo', { loose: true })`: `'2.1.5-foo'`
+* `s.clean('=v2.1.5')`: `'2.1.5'`
+* `s.clean(' =v2.1.5')`: `2.1.5`
+* `s.clean(' 2.1.5 ')`: `'2.1.5'`
+* `s.clean('~1.0.0')`: `null`
+
+## Exported Modules
+
+<!--
+TODO: Make sure that all of these items are documented (classes aren't,
+eg), and then pull the module name into the documentation for that specific
+thing.
+-->
+
+You may pull in just the part of this semver utility that you need, if you
+are sensitive to packing and tree-shaking concerns. The main
+`require('semver')` export uses getter functions to lazily load the parts
+of the API that are used.
+
+The following modules are available:
+
+* `require('semver')`
+* `require('semver/classes')`
+* `require('semver/classes/comparator')`
+* `require('semver/classes/range')`
+* `require('semver/classes/semver')`
+* `require('semver/functions/clean')`
+* `require('semver/functions/cmp')`
+* `require('semver/functions/coerce')`
+* `require('semver/functions/compare')`
+* `require('semver/functions/compare-build')`
+* `require('semver/functions/compare-loose')`
+* `require('semver/functions/diff')`
+* `require('semver/functions/eq')`
+* `require('semver/functions/gt')`
+* `require('semver/functions/gte')`
+* `require('semver/functions/inc')`
+* `require('semver/functions/lt')`
+* `require('semver/functions/lte')`
+* `require('semver/functions/major')`
+* `require('semver/functions/minor')`
+* `require('semver/functions/neq')`
+* `require('semver/functions/parse')`
+* `require('semver/functions/patch')`
+* `require('semver/functions/prerelease')`
+* `require('semver/functions/rcompare')`
+* `require('semver/functions/rsort')`
+* `require('semver/functions/satisfies')`
+* `require('semver/functions/sort')`
+* `require('semver/functions/valid')`
+* `require('semver/ranges/gtr')`
+* `require('semver/ranges/intersects')`
+* `require('semver/ranges/ltr')`
+* `require('semver/ranges/max-satisfying')`
+* `require('semver/ranges/min-satisfying')`
+* `require('semver/ranges/min-version')`
+* `require('semver/ranges/outside')`
+* `require('semver/ranges/to-comparators')`
+* `require('semver/ranges/valid')`
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/bin/semver.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/bin/semver.js
new file mode 100755
index 0000000..73fe295
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/bin/semver.js
@@ -0,0 +1,173 @@
+#!/usr/bin/env node
+// Standalone semver comparison program.
+// Exits successfully and prints matching version(s) if
+// any supplied version is valid and passes all tests.
+
+const argv = process.argv.slice(2)
+
+let versions = []
+
+const range = []
+
+let inc = null
+
+const version = require('../package.json').version
+
+let loose = false
+
+let includePrerelease = false
+
+let coerce = false
+
+let rtl = false
+
+let identifier
+
+const semver = require('../')
+
+let reverse = false
+
+const options = {}
+
+const main = () => {
+ if (!argv.length) return help()
+ while (argv.length) {
+ let a = argv.shift()
+ const indexOfEqualSign = a.indexOf('=')
+ if (indexOfEqualSign !== -1) {
+ a = a.slice(0, indexOfEqualSign)
+ argv.unshift(a.slice(indexOfEqualSign + 1))
+ }
+ switch (a) {
+ case '-rv': case '-rev': case '--rev': case '--reverse':
+ reverse = true
+ break
+ case '-l': case '--loose':
+ loose = true
+ break
+ case '-p': case '--include-prerelease':
+ includePrerelease = true
+ break
+ case '-v': case '--version':
+ versions.push(argv.shift())
+ break
+ case '-i': case '--inc': case '--increment':
+ switch (argv[0]) {
+ case 'major': case 'minor': case 'patch': case 'prerelease':
+ case 'premajor': case 'preminor': case 'prepatch':
+ inc = argv.shift()
+ break
+ default:
+ inc = 'patch'
+ break
+ }
+ break
+ case '--preid':
+ identifier = argv.shift()
+ break
+ case '-r': case '--range':
+ range.push(argv.shift())
+ break
+ case '-c': case '--coerce':
+ coerce = true
+ break
+ case '--rtl':
+ rtl = true
+ break
+ case '--ltr':
+ rtl = false
+ break
+ case '-h': case '--help': case '-?':
+ return help()
+ default:
+ versions.push(a)
+ break
+ }
+ }
+
+ const options = { loose: loose, includePrerelease: includePrerelease, rtl: rtl }
+
+ versions = versions.map((v) => {
+ return coerce ? (semver.coerce(v, options) || { version: v }).version : v
+ }).filter((v) => {
+ return semver.valid(v)
+ })
+ if (!versions.length) return fail()
+ if (inc && (versions.length !== 1 || range.length)) { return failInc() }
+
+ for (let i = 0, l = range.length; i < l; i++) {
+ versions = versions.filter((v) => {
+ return semver.satisfies(v, range[i], options)
+ })
+ if (!versions.length) return fail()
+ }
+ return success(versions)
+}
+
+
+const failInc = () => {
+ console.error('--inc can only be used on a single version with no range')
+ fail()
+}
+
+const fail = () => process.exit(1)
+
+const success = () => {
+ const compare = reverse ? 'rcompare' : 'compare'
+ versions.sort((a, b) => {
+ return semver[compare](a, b, options)
+ }).map((v) => {
+ return semver.clean(v, options)
+ }).map((v) => {
+ return inc ? semver.inc(v, inc, options, identifier) : v
+ }).forEach((v, i, _) => { console.log(v) })
+}
+
+const help = () => console.log(
+`SemVer ${version}
+
+A JavaScript implementation of the https://semver.org/ specification
+Copyright Isaac Z. Schlueter
+
+Usage: semver [options] <version> [<version> [...]]
+Prints valid versions sorted by SemVer precedence
+
+Options:
+-r --range <range>
+ Print versions that match the specified range.
+
+-i --increment [<level>]
+ Increment a version by the specified level. Level can
+ be one of: major, minor, patch, premajor, preminor,
+ prepatch, or prerelease. Default level is 'patch'.
+ Only one version may be specified.
+
+--preid <identifier>
+ Identifier to be used to prefix premajor, preminor,
+ prepatch or prerelease version increments.
+
+-l --loose
+ Interpret versions and ranges loosely
+
+-p --include-prerelease
+ Always include prerelease versions in range matching
+
+-c --coerce
+ Coerce a string into SemVer if possible
+ (does not imply --loose)
+
+--rtl
+ Coerce version strings right to left
+
+--ltr
+ Coerce version strings left to right (default)
+
+Program exits successfully if any valid version satisfies
+all supplied ranges, and prints all satisfying versions.
+
+If no satisfying versions are found, then exits failure.
+
+Versions are printed in ascending order, so supplying
+multiple versions to the utility will just sort them.`)
+
+main()
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/comparator.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/comparator.js
new file mode 100644
index 0000000..dbbef2d
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/comparator.js
@@ -0,0 +1,135 @@
+const ANY = Symbol('SemVer ANY')
+// hoisted class for cyclic dependency
+class Comparator {
+ static get ANY () {
+ return ANY
+ }
+ constructor (comp, options) {
+ options = parseOptions(options)
+
+ if (comp instanceof Comparator) {
+ if (comp.loose === !!options.loose) {
+ return comp
+ } else {
+ comp = comp.value
+ }
+ }
+
+ debug('comparator', comp, options)
+ this.options = options
+ this.loose = !!options.loose
+ this.parse(comp)
+
+ if (this.semver === ANY) {
+ this.value = ''
+ } else {
+ this.value = this.operator + this.semver.version
+ }
+
+ debug('comp', this)
+ }
+
+ parse (comp) {
+ const r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR]
+ const m = comp.match(r)
+
+ if (!m) {
+ throw new TypeError(`Invalid comparator: ${comp}`)
+ }
+
+ this.operator = m[1] !== undefined ? m[1] : ''
+ if (this.operator === '=') {
+ this.operator = ''
+ }
+
+ // if it literally is just '>' or '' then allow anything.
+ if (!m[2]) {
+ this.semver = ANY
+ } else {
+ this.semver = new SemVer(m[2], this.options.loose)
+ }
+ }
+
+ toString () {
+ return this.value
+ }
+
+ test (version) {
+ debug('Comparator.test', version, this.options.loose)
+
+ if (this.semver === ANY || version === ANY) {
+ return true
+ }
+
+ if (typeof version === 'string') {
+ try {
+ version = new SemVer(version, this.options)
+ } catch (er) {
+ return false
+ }
+ }
+
+ return cmp(version, this.operator, this.semver, this.options)
+ }
+
+ intersects (comp, options) {
+ if (!(comp instanceof Comparator)) {
+ throw new TypeError('a Comparator is required')
+ }
+
+ if (!options || typeof options !== 'object') {
+ options = {
+ loose: !!options,
+ includePrerelease: false
+ }
+ }
+
+ if (this.operator === '') {
+ if (this.value === '') {
+ return true
+ }
+ return new Range(comp.value, options).test(this.value)
+ } else if (comp.operator === '') {
+ if (comp.value === '') {
+ return true
+ }
+ return new Range(this.value, options).test(comp.semver)
+ }
+
+ const sameDirectionIncreasing =
+ (this.operator === '>=' || this.operator === '>') &&
+ (comp.operator === '>=' || comp.operator === '>')
+ const sameDirectionDecreasing =
+ (this.operator === '<=' || this.operator === '<') &&
+ (comp.operator === '<=' || comp.operator === '<')
+ const sameSemVer = this.semver.version === comp.semver.version
+ const differentDirectionsInclusive =
+ (this.operator === '>=' || this.operator === '<=') &&
+ (comp.operator === '>=' || comp.operator === '<=')
+ const oppositeDirectionsLessThan =
+ cmp(this.semver, '<', comp.semver, options) &&
+ (this.operator === '>=' || this.operator === '>') &&
+ (comp.operator === '<=' || comp.operator === '<')
+ const oppositeDirectionsGreaterThan =
+ cmp(this.semver, '>', comp.semver, options) &&
+ (this.operator === '<=' || this.operator === '<') &&
+ (comp.operator === '>=' || comp.operator === '>')
+
+ return (
+ sameDirectionIncreasing ||
+ sameDirectionDecreasing ||
+ (sameSemVer && differentDirectionsInclusive) ||
+ oppositeDirectionsLessThan ||
+ oppositeDirectionsGreaterThan
+ )
+ }
+}
+
+module.exports = Comparator
+
+const parseOptions = require('../internal/parse-options')
+const {re, t} = require('../internal/re')
+const cmp = require('../functions/cmp')
+const debug = require('../internal/debug')
+const SemVer = require('./semver')
+const Range = require('./range')
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/index.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/index.js
new file mode 100644
index 0000000..198b84d
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/index.js
@@ -0,0 +1,5 @@
+module.exports = {
+ SemVer: require('./semver.js'),
+ Range: require('./range.js'),
+ Comparator: require('./comparator.js')
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/range.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/range.js
new file mode 100644
index 0000000..aa04f6b
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/range.js
@@ -0,0 +1,510 @@
+// hoisted class for cyclic dependency
+class Range {
+ constructor (range, options) {
+ options = parseOptions(options)
+
+ if (range instanceof Range) {
+ if (
+ range.loose === !!options.loose &&
+ range.includePrerelease === !!options.includePrerelease
+ ) {
+ return range
+ } else {
+ return new Range(range.raw, options)
+ }
+ }
+
+ if (range instanceof Comparator) {
+ // just put it in the set and return
+ this.raw = range.value
+ this.set = [[range]]
+ this.format()
+ return this
+ }
+
+ this.options = options
+ this.loose = !!options.loose
+ this.includePrerelease = !!options.includePrerelease
+
+ // First, split based on boolean or ||
+ this.raw = range
+ this.set = range
+ .split(/\s*\|\|\s*/)
+ // map the range to a 2d array of comparators
+ .map(range => this.parseRange(range.trim()))
+ // throw out any comparator lists that are empty
+ // this generally means that it was not a valid range, which is allowed
+ // in loose mode, but will still throw if the WHOLE range is invalid.
+ .filter(c => c.length)
+
+ if (!this.set.length) {
+ throw new TypeError(`Invalid SemVer Range: ${range}`)
+ }
+
+ // if we have any that are not the null set, throw out null sets.
+ if (this.set.length > 1) {
+ // keep the first one, in case they're all null sets
+ const first = this.set[0]
+ this.set = this.set.filter(c => !isNullSet(c[0]))
+ if (this.set.length === 0)
+ this.set = [first]
+ else if (this.set.length > 1) {
+ // if we have any that are *, then the range is just *
+ for (const c of this.set) {
+ if (c.length === 1 && isAny(c[0])) {
+ this.set = [c]
+ break
+ }
+ }
+ }
+ }
+
+ this.format()
+ }
+
+ format () {
+ this.range = this.set
+ .map((comps) => {
+ return comps.join(' ').trim()
+ })
+ .join('||')
+ .trim()
+ return this.range
+ }
+
+ toString () {
+ return this.range
+ }
+
+ parseRange (range) {
+ range = range.trim()
+
+ // memoize range parsing for performance.
+ // this is a very hot path, and fully deterministic.
+ const memoOpts = Object.keys(this.options).join(',')
+ const memoKey = `parseRange:${memoOpts}:${range}`
+ const cached = cache.get(memoKey)
+ if (cached)
+ return cached
+
+ const loose = this.options.loose
+ // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
+ const hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE]
+ range = range.replace(hr, hyphenReplace(this.options.includePrerelease))
+ debug('hyphen replace', range)
+ // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
+ range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace)
+ debug('comparator trim', range, re[t.COMPARATORTRIM])
+
+ // `~ 1.2.3` => `~1.2.3`
+ range = range.replace(re[t.TILDETRIM], tildeTrimReplace)
+
+ // `^ 1.2.3` => `^1.2.3`
+ range = range.replace(re[t.CARETTRIM], caretTrimReplace)
+
+ // normalize spaces
+ range = range.split(/\s+/).join(' ')
+
+ // At this point, the range is completely trimmed and
+ // ready to be split into comparators.
+
+ const compRe = loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR]
+ const rangeList = range
+ .split(' ')
+ .map(comp => parseComparator(comp, this.options))
+ .join(' ')
+ .split(/\s+/)
+ // >=0.0.0 is equivalent to *
+ .map(comp => replaceGTE0(comp, this.options))
+ // in loose mode, throw out any that are not valid comparators
+ .filter(this.options.loose ? comp => !!comp.match(compRe) : () => true)
+ .map(comp => new Comparator(comp, this.options))
+
+ // if any comparators are the null set, then replace with JUST null set
+ // if more than one comparator, remove any * comparators
+ // also, don't include the same comparator more than once
+ const l = rangeList.length
+ const rangeMap = new Map()
+ for (const comp of rangeList) {
+ if (isNullSet(comp))
+ return [comp]
+ rangeMap.set(comp.value, comp)
+ }
+ if (rangeMap.size > 1 && rangeMap.has(''))
+ rangeMap.delete('')
+
+ const result = [...rangeMap.values()]
+ cache.set(memoKey, result)
+ return result
+ }
+
+ intersects (range, options) {
+ if (!(range instanceof Range)) {
+ throw new TypeError('a Range is required')
+ }
+
+ return this.set.some((thisComparators) => {
+ return (
+ isSatisfiable(thisComparators, options) &&
+ range.set.some((rangeComparators) => {
+ return (
+ isSatisfiable(rangeComparators, options) &&
+ thisComparators.every((thisComparator) => {
+ return rangeComparators.every((rangeComparator) => {
+ return thisComparator.intersects(rangeComparator, options)
+ })
+ })
+ )
+ })
+ )
+ })
+ }
+
+ // if ANY of the sets match ALL of its comparators, then pass
+ test (version) {
+ if (!version) {
+ return false
+ }
+
+ if (typeof version === 'string') {
+ try {
+ version = new SemVer(version, this.options)
+ } catch (er) {
+ return false
+ }
+ }
+
+ for (let i = 0; i < this.set.length; i++) {
+ if (testSet(this.set[i], version, this.options)) {
+ return true
+ }
+ }
+ return false
+ }
+}
+module.exports = Range
+
+const LRU = require('lru-cache')
+const cache = new LRU({ max: 1000 })
+
+const parseOptions = require('../internal/parse-options')
+const Comparator = require('./comparator')
+const debug = require('../internal/debug')
+const SemVer = require('./semver')
+const {
+ re,
+ t,
+ comparatorTrimReplace,
+ tildeTrimReplace,
+ caretTrimReplace
+} = require('../internal/re')
+
+const isNullSet = c => c.value === '<0.0.0-0'
+const isAny = c => c.value === ''
+
+// take a set of comparators and determine whether there
+// exists a version which can satisfy it
+const isSatisfiable = (comparators, options) => {
+ let result = true
+ const remainingComparators = comparators.slice()
+ let testComparator = remainingComparators.pop()
+
+ while (result && remainingComparators.length) {
+ result = remainingComparators.every((otherComparator) => {
+ return testComparator.intersects(otherComparator, options)
+ })
+
+ testComparator = remainingComparators.pop()
+ }
+
+ return result
+}
+
+// comprised of xranges, tildes, stars, and gtlt's at this point.
+// already replaced the hyphen ranges
+// turn into a set of JUST comparators.
+const parseComparator = (comp, options) => {
+ debug('comp', comp, options)
+ comp = replaceCarets(comp, options)
+ debug('caret', comp)
+ comp = replaceTildes(comp, options)
+ debug('tildes', comp)
+ comp = replaceXRanges(comp, options)
+ debug('xrange', comp)
+ comp = replaceStars(comp, options)
+ debug('stars', comp)
+ return comp
+}
+
+const isX = id => !id || id.toLowerCase() === 'x' || id === '*'
+
+// ~, ~> --> * (any, kinda silly)
+// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0-0
+// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0-0
+// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0-0
+// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0-0
+// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0-0
+const replaceTildes = (comp, options) =>
+ comp.trim().split(/\s+/).map((comp) => {
+ return replaceTilde(comp, options)
+ }).join(' ')
+
+const replaceTilde = (comp, options) => {
+ const r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE]
+ return comp.replace(r, (_, M, m, p, pr) => {
+ debug('tilde', comp, _, M, m, p, pr)
+ let ret
+
+ if (isX(M)) {
+ ret = ''
+ } else if (isX(m)) {
+ ret = `>=${M}.0.0 <${+M + 1}.0.0-0`
+ } else if (isX(p)) {
+ // ~1.2 == >=1.2.0 <1.3.0-0
+ ret = `>=${M}.${m}.0 <${M}.${+m + 1}.0-0`
+ } else if (pr) {
+ debug('replaceTilde pr', pr)
+ ret = `>=${M}.${m}.${p}-${pr
+ } <${M}.${+m + 1}.0-0`
+ } else {
+ // ~1.2.3 == >=1.2.3 <1.3.0-0
+ ret = `>=${M}.${m}.${p
+ } <${M}.${+m + 1}.0-0`
+ }
+
+ debug('tilde return', ret)
+ return ret
+ })
+}
+
+// ^ --> * (any, kinda silly)
+// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0-0
+// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0-0
+// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0-0
+// ^1.2.3 --> >=1.2.3 <2.0.0-0
+// ^1.2.0 --> >=1.2.0 <2.0.0-0
+const replaceCarets = (comp, options) =>
+ comp.trim().split(/\s+/).map((comp) => {
+ return replaceCaret(comp, options)
+ }).join(' ')
+
+const replaceCaret = (comp, options) => {
+ debug('caret', comp, options)
+ const r = options.loose ? re[t.CARETLOOSE] : re[t.CARET]
+ const z = options.includePrerelease ? '-0' : ''
+ return comp.replace(r, (_, M, m, p, pr) => {
+ debug('caret', comp, _, M, m, p, pr)
+ let ret
+
+ if (isX(M)) {
+ ret = ''
+ } else if (isX(m)) {
+ ret = `>=${M}.0.0${z} <${+M + 1}.0.0-0`
+ } else if (isX(p)) {
+ if (M === '0') {
+ ret = `>=${M}.${m}.0${z} <${M}.${+m + 1}.0-0`
+ } else {
+ ret = `>=${M}.${m}.0${z} <${+M + 1}.0.0-0`
+ }
+ } else if (pr) {
+ debug('replaceCaret pr', pr)
+ if (M === '0') {
+ if (m === '0') {
+ ret = `>=${M}.${m}.${p}-${pr
+ } <${M}.${m}.${+p + 1}-0`
+ } else {
+ ret = `>=${M}.${m}.${p}-${pr
+ } <${M}.${+m + 1}.0-0`
+ }
+ } else {
+ ret = `>=${M}.${m}.${p}-${pr
+ } <${+M + 1}.0.0-0`
+ }
+ } else {
+ debug('no pr')
+ if (M === '0') {
+ if (m === '0') {
+ ret = `>=${M}.${m}.${p
+ }${z} <${M}.${m}.${+p + 1}-0`
+ } else {
+ ret = `>=${M}.${m}.${p
+ }${z} <${M}.${+m + 1}.0-0`
+ }
+ } else {
+ ret = `>=${M}.${m}.${p
+ } <${+M + 1}.0.0-0`
+ }
+ }
+
+ debug('caret return', ret)
+ return ret
+ })
+}
+
+const replaceXRanges = (comp, options) => {
+ debug('replaceXRanges', comp, options)
+ return comp.split(/\s+/).map((comp) => {
+ return replaceXRange(comp, options)
+ }).join(' ')
+}
+
+const replaceXRange = (comp, options) => {
+ comp = comp.trim()
+ const r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE]
+ return comp.replace(r, (ret, gtlt, M, m, p, pr) => {
+ debug('xRange', comp, ret, gtlt, M, m, p, pr)
+ const xM = isX(M)
+ const xm = xM || isX(m)
+ const xp = xm || isX(p)
+ const anyX = xp
+
+ if (gtlt === '=' && anyX) {
+ gtlt = ''
+ }
+
+ // if we're including prereleases in the match, then we need
+ // to fix this to -0, the lowest possible prerelease value
+ pr = options.includePrerelease ? '-0' : ''
+
+ if (xM) {
+ if (gtlt === '>' || gtlt === '<') {
+ // nothing is allowed
+ ret = '<0.0.0-0'
+ } else {
+ // nothing is forbidden
+ ret = '*'
+ }
+ } else if (gtlt && anyX) {
+ // we know patch is an x, because we have any x at all.
+ // replace X with 0
+ if (xm) {
+ m = 0
+ }
+ p = 0
+
+ if (gtlt === '>') {
+ // >1 => >=2.0.0
+ // >1.2 => >=1.3.0
+ gtlt = '>='
+ if (xm) {
+ M = +M + 1
+ m = 0
+ p = 0
+ } else {
+ m = +m + 1
+ p = 0
+ }
+ } else if (gtlt === '<=') {
+ // <=0.7.x is actually <0.8.0, since any 0.7.x should
+ // pass. Similarly, <=7.x is actually <8.0.0, etc.
+ gtlt = '<'
+ if (xm) {
+ M = +M + 1
+ } else {
+ m = +m + 1
+ }
+ }
+
+ if (gtlt === '<')
+ pr = '-0'
+
+ ret = `${gtlt + M}.${m}.${p}${pr}`
+ } else if (xm) {
+ ret = `>=${M}.0.0${pr} <${+M + 1}.0.0-0`
+ } else if (xp) {
+ ret = `>=${M}.${m}.0${pr
+ } <${M}.${+m + 1}.0-0`
+ }
+
+ debug('xRange return', ret)
+
+ return ret
+ })
+}
+
+// Because * is AND-ed with everything else in the comparator,
+// and '' means "any version", just remove the *s entirely.
+const replaceStars = (comp, options) => {
+ debug('replaceStars', comp, options)
+ // Looseness is ignored here. star is always as loose as it gets!
+ return comp.trim().replace(re[t.STAR], '')
+}
+
+const replaceGTE0 = (comp, options) => {
+ debug('replaceGTE0', comp, options)
+ return comp.trim()
+ .replace(re[options.includePrerelease ? t.GTE0PRE : t.GTE0], '')
+}
+
+// This function is passed to string.replace(re[t.HYPHENRANGE])
+// M, m, patch, prerelease, build
+// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
+// 1.2.3 - 3.4 => >=1.2.0 <3.5.0-0 Any 3.4.x will do
+// 1.2 - 3.4 => >=1.2.0 <3.5.0-0
+const hyphenReplace = incPr => ($0,
+ from, fM, fm, fp, fpr, fb,
+ to, tM, tm, tp, tpr, tb) => {
+ if (isX(fM)) {
+ from = ''
+ } else if (isX(fm)) {
+ from = `>=${fM}.0.0${incPr ? '-0' : ''}`
+ } else if (isX(fp)) {
+ from = `>=${fM}.${fm}.0${incPr ? '-0' : ''}`
+ } else if (fpr) {
+ from = `>=${from}`
+ } else {
+ from = `>=${from}${incPr ? '-0' : ''}`
+ }
+
+ if (isX(tM)) {
+ to = ''
+ } else if (isX(tm)) {
+ to = `<${+tM + 1}.0.0-0`
+ } else if (isX(tp)) {
+ to = `<${tM}.${+tm + 1}.0-0`
+ } else if (tpr) {
+ to = `<=${tM}.${tm}.${tp}-${tpr}`
+ } else if (incPr) {
+ to = `<${tM}.${tm}.${+tp + 1}-0`
+ } else {
+ to = `<=${to}`
+ }
+
+ return (`${from} ${to}`).trim()
+}
+
+const testSet = (set, version, options) => {
+ for (let i = 0; i < set.length; i++) {
+ if (!set[i].test(version)) {
+ return false
+ }
+ }
+
+ if (version.prerelease.length && !options.includePrerelease) {
+ // Find the set of versions that are allowed to have prereleases
+ // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
+ // That should allow `1.2.3-pr.2` to pass.
+ // However, `1.2.4-alpha.notready` should NOT be allowed,
+ // even though it's within the range set by the comparators.
+ for (let i = 0; i < set.length; i++) {
+ debug(set[i].semver)
+ if (set[i].semver === Comparator.ANY) {
+ continue
+ }
+
+ if (set[i].semver.prerelease.length > 0) {
+ const allowed = set[i].semver
+ if (allowed.major === version.major &&
+ allowed.minor === version.minor &&
+ allowed.patch === version.patch) {
+ return true
+ }
+ }
+ }
+
+ // Version has a -pre, but it's not one of the ones we like.
+ return false
+ }
+
+ return true
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/semver.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/semver.js
new file mode 100644
index 0000000..ed81a7e
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/classes/semver.js
@@ -0,0 +1,287 @@
+const debug = require('../internal/debug')
+const { MAX_LENGTH, MAX_SAFE_INTEGER } = require('../internal/constants')
+const { re, t } = require('../internal/re')
+
+const parseOptions = require('../internal/parse-options')
+const { compareIdentifiers } = require('../internal/identifiers')
+class SemVer {
+ constructor (version, options) {
+ options = parseOptions(options)
+
+ if (version instanceof SemVer) {
+ if (version.loose === !!options.loose &&
+ version.includePrerelease === !!options.includePrerelease) {
+ return version
+ } else {
+ version = version.version
+ }
+ } else if (typeof version !== 'string') {
+ throw new TypeError(`Invalid Version: ${version}`)
+ }
+
+ if (version.length > MAX_LENGTH) {
+ throw new TypeError(
+ `version is longer than ${MAX_LENGTH} characters`
+ )
+ }
+
+ debug('SemVer', version, options)
+ this.options = options
+ this.loose = !!options.loose
+ // this isn't actually relevant for versions, but keep it so that we
+ // don't run into trouble passing this.options around.
+ this.includePrerelease = !!options.includePrerelease
+
+ const m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL])
+
+ if (!m) {
+ throw new TypeError(`Invalid Version: ${version}`)
+ }
+
+ this.raw = version
+
+ // these are actually numbers
+ this.major = +m[1]
+ this.minor = +m[2]
+ this.patch = +m[3]
+
+ if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
+ throw new TypeError('Invalid major version')
+ }
+
+ if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
+ throw new TypeError('Invalid minor version')
+ }
+
+ if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
+ throw new TypeError('Invalid patch version')
+ }
+
+ // numberify any prerelease numeric ids
+ if (!m[4]) {
+ this.prerelease = []
+ } else {
+ this.prerelease = m[4].split('.').map((id) => {
+ if (/^[0-9]+$/.test(id)) {
+ const num = +id
+ if (num >= 0 && num < MAX_SAFE_INTEGER) {
+ return num
+ }
+ }
+ return id
+ })
+ }
+
+ this.build = m[5] ? m[5].split('.') : []
+ this.format()
+ }
+
+ format () {
+ this.version = `${this.major}.${this.minor}.${this.patch}`
+ if (this.prerelease.length) {
+ this.version += `-${this.prerelease.join('.')}`
+ }
+ return this.version
+ }
+
+ toString () {
+ return this.version
+ }
+
+ compare (other) {
+ debug('SemVer.compare', this.version, this.options, other)
+ if (!(other instanceof SemVer)) {
+ if (typeof other === 'string' && other === this.version) {
+ return 0
+ }
+ other = new SemVer(other, this.options)
+ }
+
+ if (other.version === this.version) {
+ return 0
+ }
+
+ return this.compareMain(other) || this.comparePre(other)
+ }
+
+ compareMain (other) {
+ if (!(other instanceof SemVer)) {
+ other = new SemVer(other, this.options)
+ }
+
+ return (
+ compareIdentifiers(this.major, other.major) ||
+ compareIdentifiers(this.minor, other.minor) ||
+ compareIdentifiers(this.patch, other.patch)
+ )
+ }
+
+ comparePre (other) {
+ if (!(other instanceof SemVer)) {
+ other = new SemVer(other, this.options)
+ }
+
+ // NOT having a prerelease is > having one
+ if (this.prerelease.length && !other.prerelease.length) {
+ return -1
+ } else if (!this.prerelease.length && other.prerelease.length) {
+ return 1
+ } else if (!this.prerelease.length && !other.prerelease.length) {
+ return 0
+ }
+
+ let i = 0
+ do {
+ const a = this.prerelease[i]
+ const b = other.prerelease[i]
+ debug('prerelease compare', i, a, b)
+ if (a === undefined && b === undefined) {
+ return 0
+ } else if (b === undefined) {
+ return 1
+ } else if (a === undefined) {
+ return -1
+ } else if (a === b) {
+ continue
+ } else {
+ return compareIdentifiers(a, b)
+ }
+ } while (++i)
+ }
+
+ compareBuild (other) {
+ if (!(other instanceof SemVer)) {
+ other = new SemVer(other, this.options)
+ }
+
+ let i = 0
+ do {
+ const a = this.build[i]
+ const b = other.build[i]
+ debug('prerelease compare', i, a, b)
+ if (a === undefined && b === undefined) {
+ return 0
+ } else if (b === undefined) {
+ return 1
+ } else if (a === undefined) {
+ return -1
+ } else if (a === b) {
+ continue
+ } else {
+ return compareIdentifiers(a, b)
+ }
+ } while (++i)
+ }
+
+ // preminor will bump the version up to the next minor release, and immediately
+ // down to pre-release. premajor and prepatch work the same way.
+ inc (release, identifier) {
+ switch (release) {
+ case 'premajor':
+ this.prerelease.length = 0
+ this.patch = 0
+ this.minor = 0
+ this.major++
+ this.inc('pre', identifier)
+ break
+ case 'preminor':
+ this.prerelease.length = 0
+ this.patch = 0
+ this.minor++
+ this.inc('pre', identifier)
+ break
+ case 'prepatch':
+ // If this is already a prerelease, it will bump to the next version
+ // drop any prereleases that might already exist, since they are not
+ // relevant at this point.
+ this.prerelease.length = 0
+ this.inc('patch', identifier)
+ this.inc('pre', identifier)
+ break
+ // If the input is a non-prerelease version, this acts the same as
+ // prepatch.
+ case 'prerelease':
+ if (this.prerelease.length === 0) {
+ this.inc('patch', identifier)
+ }
+ this.inc('pre', identifier)
+ break
+
+ case 'major':
+ // If this is a pre-major version, bump up to the same major version.
+ // Otherwise increment major.
+ // 1.0.0-5 bumps to 1.0.0
+ // 1.1.0 bumps to 2.0.0
+ if (
+ this.minor !== 0 ||
+ this.patch !== 0 ||
+ this.prerelease.length === 0
+ ) {
+ this.major++
+ }
+ this.minor = 0
+ this.patch = 0
+ this.prerelease = []
+ break
+ case 'minor':
+ // If this is a pre-minor version, bump up to the same minor version.
+ // Otherwise increment minor.
+ // 1.2.0-5 bumps to 1.2.0
+ // 1.2.1 bumps to 1.3.0
+ if (this.patch !== 0 || this.prerelease.length === 0) {
+ this.minor++
+ }
+ this.patch = 0
+ this.prerelease = []
+ break
+ case 'patch':
+ // If this is not a pre-release version, it will increment the patch.
+ // If it is a pre-release it will bump up to the same patch version.
+ // 1.2.0-5 patches to 1.2.0
+ // 1.2.0 patches to 1.2.1
+ if (this.prerelease.length === 0) {
+ this.patch++
+ }
+ this.prerelease = []
+ break
+ // This probably shouldn't be used publicly.
+ // 1.0.0 'pre' would become 1.0.0-0 which is the wrong direction.
+ case 'pre':
+ if (this.prerelease.length === 0) {
+ this.prerelease = [0]
+ } else {
+ let i = this.prerelease.length
+ while (--i >= 0) {
+ if (typeof this.prerelease[i] === 'number') {
+ this.prerelease[i]++
+ i = -2
+ }
+ }
+ if (i === -1) {
+ // didn't increment anything
+ this.prerelease.push(0)
+ }
+ }
+ if (identifier) {
+ // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
+ // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
+ if (this.prerelease[0] === identifier) {
+ if (isNaN(this.prerelease[1])) {
+ this.prerelease = [identifier, 0]
+ }
+ } else {
+ this.prerelease = [identifier, 0]
+ }
+ }
+ break
+
+ default:
+ throw new Error(`invalid increment argument: ${release}`)
+ }
+ this.format()
+ this.raw = this.version
+ return this
+ }
+}
+
+module.exports = SemVer
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/clean.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/clean.js
new file mode 100644
index 0000000..811fe6b
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/clean.js
@@ -0,0 +1,6 @@
+const parse = require('./parse')
+const clean = (version, options) => {
+ const s = parse(version.trim().replace(/^[=v]+/, ''), options)
+ return s ? s.version : null
+}
+module.exports = clean
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/cmp.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/cmp.js
new file mode 100644
index 0000000..3b89db7
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/cmp.js
@@ -0,0 +1,48 @@
+const eq = require('./eq')
+const neq = require('./neq')
+const gt = require('./gt')
+const gte = require('./gte')
+const lt = require('./lt')
+const lte = require('./lte')
+
+const cmp = (a, op, b, loose) => {
+ switch (op) {
+ case '===':
+ if (typeof a === 'object')
+ a = a.version
+ if (typeof b === 'object')
+ b = b.version
+ return a === b
+
+ case '!==':
+ if (typeof a === 'object')
+ a = a.version
+ if (typeof b === 'object')
+ b = b.version
+ return a !== b
+
+ case '':
+ case '=':
+ case '==':
+ return eq(a, b, loose)
+
+ case '!=':
+ return neq(a, b, loose)
+
+ case '>':
+ return gt(a, b, loose)
+
+ case '>=':
+ return gte(a, b, loose)
+
+ case '<':
+ return lt(a, b, loose)
+
+ case '<=':
+ return lte(a, b, loose)
+
+ default:
+ throw new TypeError(`Invalid operator: ${op}`)
+ }
+}
+module.exports = cmp
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/coerce.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/coerce.js
new file mode 100644
index 0000000..106ca71
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/coerce.js
@@ -0,0 +1,51 @@
+const SemVer = require('../classes/semver')
+const parse = require('./parse')
+const {re, t} = require('../internal/re')
+
+const coerce = (version, options) => {
+ if (version instanceof SemVer) {
+ return version
+ }
+
+ if (typeof version === 'number') {
+ version = String(version)
+ }
+
+ if (typeof version !== 'string') {
+ return null
+ }
+
+ options = options || {}
+
+ let match = null
+ if (!options.rtl) {
+ match = version.match(re[t.COERCE])
+ } else {
+ // Find the right-most coercible string that does not share
+ // a terminus with a more left-ward coercible string.
+ // Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4'
+ //
+ // Walk through the string checking with a /g regexp
+ // Manually set the index so as to pick up overlapping matches.
+ // Stop when we get a match that ends at the string end, since no
+ // coercible string can be more right-ward without the same terminus.
+ let next
+ while ((next = re[t.COERCERTL].exec(version)) &&
+ (!match || match.index + match[0].length !== version.length)
+ ) {
+ if (!match ||
+ next.index + next[0].length !== match.index + match[0].length) {
+ match = next
+ }
+ re[t.COERCERTL].lastIndex = next.index + next[1].length + next[2].length
+ }
+ // leave it in a clean state
+ re[t.COERCERTL].lastIndex = -1
+ }
+
+ if (match === null)
+ return null
+
+ return parse(`${match[2]}.${match[3] || '0'}.${match[4] || '0'}`, options)
+}
+module.exports = coerce
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/compare-build.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/compare-build.js
new file mode 100644
index 0000000..9eb881b
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/compare-build.js
@@ -0,0 +1,7 @@
+const SemVer = require('../classes/semver')
+const compareBuild = (a, b, loose) => {
+ const versionA = new SemVer(a, loose)
+ const versionB = new SemVer(b, loose)
+ return versionA.compare(versionB) || versionA.compareBuild(versionB)
+}
+module.exports = compareBuild
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/compare-loose.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/compare-loose.js
new file mode 100644
index 0000000..4881fbe
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/compare-loose.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const compareLoose = (a, b) => compare(a, b, true)
+module.exports = compareLoose
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/compare.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/compare.js
new file mode 100644
index 0000000..748b7af
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/compare.js
@@ -0,0 +1,5 @@
+const SemVer = require('../classes/semver')
+const compare = (a, b, loose) =>
+ new SemVer(a, loose).compare(new SemVer(b, loose))
+
+module.exports = compare
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/diff.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/diff.js
new file mode 100644
index 0000000..87200ef
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/diff.js
@@ -0,0 +1,23 @@
+const parse = require('./parse')
+const eq = require('./eq')
+
+const diff = (version1, version2) => {
+ if (eq(version1, version2)) {
+ return null
+ } else {
+ const v1 = parse(version1)
+ const v2 = parse(version2)
+ const hasPre = v1.prerelease.length || v2.prerelease.length
+ const prefix = hasPre ? 'pre' : ''
+ const defaultResult = hasPre ? 'prerelease' : ''
+ for (const key in v1) {
+ if (key === 'major' || key === 'minor' || key === 'patch') {
+ if (v1[key] !== v2[key]) {
+ return prefix + key
+ }
+ }
+ }
+ return defaultResult // may be undefined
+ }
+}
+module.exports = diff
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/eq.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/eq.js
new file mode 100644
index 0000000..271fed9
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/eq.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const eq = (a, b, loose) => compare(a, b, loose) === 0
+module.exports = eq
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/gt.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/gt.js
new file mode 100644
index 0000000..d9b2156
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/gt.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const gt = (a, b, loose) => compare(a, b, loose) > 0
+module.exports = gt
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/gte.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/gte.js
new file mode 100644
index 0000000..5aeaa63
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/gte.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const gte = (a, b, loose) => compare(a, b, loose) >= 0
+module.exports = gte
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/inc.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/inc.js
new file mode 100644
index 0000000..aa4d83a
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/inc.js
@@ -0,0 +1,15 @@
+const SemVer = require('../classes/semver')
+
+const inc = (version, release, options, identifier) => {
+ if (typeof (options) === 'string') {
+ identifier = options
+ options = undefined
+ }
+
+ try {
+ return new SemVer(version, options).inc(release, identifier).version
+ } catch (er) {
+ return null
+ }
+}
+module.exports = inc
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/lt.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/lt.js
new file mode 100644
index 0000000..b440ab7
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/lt.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const lt = (a, b, loose) => compare(a, b, loose) < 0
+module.exports = lt
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/lte.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/lte.js
new file mode 100644
index 0000000..6dcc956
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/lte.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const lte = (a, b, loose) => compare(a, b, loose) <= 0
+module.exports = lte
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/major.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/major.js
new file mode 100644
index 0000000..4283165
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/major.js
@@ -0,0 +1,3 @@
+const SemVer = require('../classes/semver')
+const major = (a, loose) => new SemVer(a, loose).major
+module.exports = major
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/minor.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/minor.js
new file mode 100644
index 0000000..57b3455
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/minor.js
@@ -0,0 +1,3 @@
+const SemVer = require('../classes/semver')
+const minor = (a, loose) => new SemVer(a, loose).minor
+module.exports = minor
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/neq.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/neq.js
new file mode 100644
index 0000000..f944c01
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/neq.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const neq = (a, b, loose) => compare(a, b, loose) !== 0
+module.exports = neq
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/parse.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/parse.js
new file mode 100644
index 0000000..11f20f0
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/parse.js
@@ -0,0 +1,33 @@
+const {MAX_LENGTH} = require('../internal/constants')
+const { re, t } = require('../internal/re')
+const SemVer = require('../classes/semver')
+
+const parseOptions = require('../internal/parse-options')
+const parse = (version, options) => {
+ options = parseOptions(options)
+
+ if (version instanceof SemVer) {
+ return version
+ }
+
+ if (typeof version !== 'string') {
+ return null
+ }
+
+ if (version.length > MAX_LENGTH) {
+ return null
+ }
+
+ const r = options.loose ? re[t.LOOSE] : re[t.FULL]
+ if (!r.test(version)) {
+ return null
+ }
+
+ try {
+ return new SemVer(version, options)
+ } catch (er) {
+ return null
+ }
+}
+
+module.exports = parse
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/patch.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/patch.js
new file mode 100644
index 0000000..63afca2
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/patch.js
@@ -0,0 +1,3 @@
+const SemVer = require('../classes/semver')
+const patch = (a, loose) => new SemVer(a, loose).patch
+module.exports = patch
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/prerelease.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/prerelease.js
new file mode 100644
index 0000000..06aa132
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/prerelease.js
@@ -0,0 +1,6 @@
+const parse = require('./parse')
+const prerelease = (version, options) => {
+ const parsed = parse(version, options)
+ return (parsed && parsed.prerelease.length) ? parsed.prerelease : null
+}
+module.exports = prerelease
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/rcompare.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/rcompare.js
new file mode 100644
index 0000000..0ac509e
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/rcompare.js
@@ -0,0 +1,3 @@
+const compare = require('./compare')
+const rcompare = (a, b, loose) => compare(b, a, loose)
+module.exports = rcompare
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/rsort.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/rsort.js
new file mode 100644
index 0000000..82404c5
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/rsort.js
@@ -0,0 +1,3 @@
+const compareBuild = require('./compare-build')
+const rsort = (list, loose) => list.sort((a, b) => compareBuild(b, a, loose))
+module.exports = rsort
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/satisfies.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/satisfies.js
new file mode 100644
index 0000000..50af1c1
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/satisfies.js
@@ -0,0 +1,10 @@
+const Range = require('../classes/range')
+const satisfies = (version, range, options) => {
+ try {
+ range = new Range(range, options)
+ } catch (er) {
+ return false
+ }
+ return range.test(version)
+}
+module.exports = satisfies
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/sort.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/sort.js
new file mode 100644
index 0000000..4d10917
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/sort.js
@@ -0,0 +1,3 @@
+const compareBuild = require('./compare-build')
+const sort = (list, loose) => list.sort((a, b) => compareBuild(a, b, loose))
+module.exports = sort
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/valid.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/valid.js
new file mode 100644
index 0000000..f27bae1
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/functions/valid.js
@@ -0,0 +1,6 @@
+const parse = require('./parse')
+const valid = (version, options) => {
+ const v = parse(version, options)
+ return v ? v.version : null
+}
+module.exports = valid
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/index.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/index.js
new file mode 100644
index 0000000..57e2ae6
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/index.js
@@ -0,0 +1,48 @@
+// just pre-load all the stuff that index.js lazily exports
+const internalRe = require('./internal/re')
+module.exports = {
+ re: internalRe.re,
+ src: internalRe.src,
+ tokens: internalRe.t,
+ SEMVER_SPEC_VERSION: require('./internal/constants').SEMVER_SPEC_VERSION,
+ SemVer: require('./classes/semver'),
+ compareIdentifiers: require('./internal/identifiers').compareIdentifiers,
+ rcompareIdentifiers: require('./internal/identifiers').rcompareIdentifiers,
+ parse: require('./functions/parse'),
+ valid: require('./functions/valid'),
+ clean: require('./functions/clean'),
+ inc: require('./functions/inc'),
+ diff: require('./functions/diff'),
+ major: require('./functions/major'),
+ minor: require('./functions/minor'),
+ patch: require('./functions/patch'),
+ prerelease: require('./functions/prerelease'),
+ compare: require('./functions/compare'),
+ rcompare: require('./functions/rcompare'),
+ compareLoose: require('./functions/compare-loose'),
+ compareBuild: require('./functions/compare-build'),
+ sort: require('./functions/sort'),
+ rsort: require('./functions/rsort'),
+ gt: require('./functions/gt'),
+ lt: require('./functions/lt'),
+ eq: require('./functions/eq'),
+ neq: require('./functions/neq'),
+ gte: require('./functions/gte'),
+ lte: require('./functions/lte'),
+ cmp: require('./functions/cmp'),
+ coerce: require('./functions/coerce'),
+ Comparator: require('./classes/comparator'),
+ Range: require('./classes/range'),
+ satisfies: require('./functions/satisfies'),
+ toComparators: require('./ranges/to-comparators'),
+ maxSatisfying: require('./ranges/max-satisfying'),
+ minSatisfying: require('./ranges/min-satisfying'),
+ minVersion: require('./ranges/min-version'),
+ validRange: require('./ranges/valid'),
+ outside: require('./ranges/outside'),
+ gtr: require('./ranges/gtr'),
+ ltr: require('./ranges/ltr'),
+ intersects: require('./ranges/intersects'),
+ simplifyRange: require('./ranges/simplify'),
+ subset: require('./ranges/subset'),
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/constants.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/constants.js
new file mode 100644
index 0000000..49df215
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/constants.js
@@ -0,0 +1,17 @@
+// Note: this is the semver.org version of the spec that it implements
+// Not necessarily the package version of this code.
+const SEMVER_SPEC_VERSION = '2.0.0'
+
+const MAX_LENGTH = 256
+const MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER ||
+ /* istanbul ignore next */ 9007199254740991
+
+// Max safe segment length for coercion.
+const MAX_SAFE_COMPONENT_LENGTH = 16
+
+module.exports = {
+ SEMVER_SPEC_VERSION,
+ MAX_LENGTH,
+ MAX_SAFE_INTEGER,
+ MAX_SAFE_COMPONENT_LENGTH
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/debug.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/debug.js
new file mode 100644
index 0000000..1c00e13
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/debug.js
@@ -0,0 +1,9 @@
+const debug = (
+ typeof process === 'object' &&
+ process.env &&
+ process.env.NODE_DEBUG &&
+ /\bsemver\b/i.test(process.env.NODE_DEBUG)
+) ? (...args) => console.error('SEMVER', ...args)
+ : () => {}
+
+module.exports = debug
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/identifiers.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/identifiers.js
new file mode 100644
index 0000000..ed13094
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/identifiers.js
@@ -0,0 +1,23 @@
+const numeric = /^[0-9]+$/
+const compareIdentifiers = (a, b) => {
+ const anum = numeric.test(a)
+ const bnum = numeric.test(b)
+
+ if (anum && bnum) {
+ a = +a
+ b = +b
+ }
+
+ return a === b ? 0
+ : (anum && !bnum) ? -1
+ : (bnum && !anum) ? 1
+ : a < b ? -1
+ : 1
+}
+
+const rcompareIdentifiers = (a, b) => compareIdentifiers(b, a)
+
+module.exports = {
+ compareIdentifiers,
+ rcompareIdentifiers
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/parse-options.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/parse-options.js
new file mode 100644
index 0000000..42d2ebd
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/parse-options.js
@@ -0,0 +1,11 @@
+// parse out just the options we care about so we always get a consistent
+// obj with keys in a consistent order.
+const opts = ['includePrerelease', 'loose', 'rtl']
+const parseOptions = options =>
+ !options ? {}
+ : typeof options !== 'object' ? { loose: true }
+ : opts.filter(k => options[k]).reduce((options, k) => {
+ options[k] = true
+ return options
+ }, {})
+module.exports = parseOptions
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/re.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/re.js
new file mode 100644
index 0000000..54d4176
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/internal/re.js
@@ -0,0 +1,182 @@
+const { MAX_SAFE_COMPONENT_LENGTH } = require('./constants')
+const debug = require('./debug')
+exports = module.exports = {}
+
+// The actual regexps go on exports.re
+const re = exports.re = []
+const src = exports.src = []
+const t = exports.t = {}
+let R = 0
+
+const createToken = (name, value, isGlobal) => {
+ const index = R++
+ debug(index, value)
+ t[name] = index
+ src[index] = value
+ re[index] = new RegExp(value, isGlobal ? 'g' : undefined)
+}
+
+// The following Regular Expressions can be used for tokenizing,
+// validating, and parsing SemVer version strings.
+
+// ## Numeric Identifier
+// A single `0`, or a non-zero digit followed by zero or more digits.
+
+createToken('NUMERICIDENTIFIER', '0|[1-9]\\d*')
+createToken('NUMERICIDENTIFIERLOOSE', '[0-9]+')
+
+// ## Non-numeric Identifier
+// Zero or more digits, followed by a letter or hyphen, and then zero or
+// more letters, digits, or hyphens.
+
+createToken('NONNUMERICIDENTIFIER', '\\d*[a-zA-Z-][a-zA-Z0-9-]*')
+
+// ## Main Version
+// Three dot-separated numeric identifiers.
+
+createToken('MAINVERSION', `(${src[t.NUMERICIDENTIFIER]})\\.` +
+ `(${src[t.NUMERICIDENTIFIER]})\\.` +
+ `(${src[t.NUMERICIDENTIFIER]})`)
+
+createToken('MAINVERSIONLOOSE', `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` +
+ `(${src[t.NUMERICIDENTIFIERLOOSE]})\\.` +
+ `(${src[t.NUMERICIDENTIFIERLOOSE]})`)
+
+// ## Pre-release Version Identifier
+// A numeric identifier, or a non-numeric identifier.
+
+createToken('PRERELEASEIDENTIFIER', `(?:${src[t.NUMERICIDENTIFIER]
+}|${src[t.NONNUMERICIDENTIFIER]})`)
+
+createToken('PRERELEASEIDENTIFIERLOOSE', `(?:${src[t.NUMERICIDENTIFIERLOOSE]
+}|${src[t.NONNUMERICIDENTIFIER]})`)
+
+// ## Pre-release Version
+// Hyphen, followed by one or more dot-separated pre-release version
+// identifiers.
+
+createToken('PRERELEASE', `(?:-(${src[t.PRERELEASEIDENTIFIER]
+}(?:\\.${src[t.PRERELEASEIDENTIFIER]})*))`)
+
+createToken('PRERELEASELOOSE', `(?:-?(${src[t.PRERELEASEIDENTIFIERLOOSE]
+}(?:\\.${src[t.PRERELEASEIDENTIFIERLOOSE]})*))`)
+
+// ## Build Metadata Identifier
+// Any combination of digits, letters, or hyphens.
+
+createToken('BUILDIDENTIFIER', '[0-9A-Za-z-]+')
+
+// ## Build Metadata
+// Plus sign, followed by one or more period-separated build metadata
+// identifiers.
+
+createToken('BUILD', `(?:\\+(${src[t.BUILDIDENTIFIER]
+}(?:\\.${src[t.BUILDIDENTIFIER]})*))`)
+
+// ## Full Version String
+// A main version, followed optionally by a pre-release version and
+// build metadata.
+
+// Note that the only major, minor, patch, and pre-release sections of
+// the version string are capturing groups. The build metadata is not a
+// capturing group, because it should not ever be used in version
+// comparison.
+
+createToken('FULLPLAIN', `v?${src[t.MAINVERSION]
+}${src[t.PRERELEASE]}?${
+ src[t.BUILD]}?`)
+
+createToken('FULL', `^${src[t.FULLPLAIN]}$`)
+
+// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
+// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
+// common in the npm registry.
+createToken('LOOSEPLAIN', `[v=\\s]*${src[t.MAINVERSIONLOOSE]
+}${src[t.PRERELEASELOOSE]}?${
+ src[t.BUILD]}?`)
+
+createToken('LOOSE', `^${src[t.LOOSEPLAIN]}$`)
+
+createToken('GTLT', '((?:<|>)?=?)')
+
+// Something like "2.*" or "1.2.x".
+// Note that "x.x" is a valid xRange identifer, meaning "any version"
+// Only the first item is strictly required.
+createToken('XRANGEIDENTIFIERLOOSE', `${src[t.NUMERICIDENTIFIERLOOSE]}|x|X|\\*`)
+createToken('XRANGEIDENTIFIER', `${src[t.NUMERICIDENTIFIER]}|x|X|\\*`)
+
+createToken('XRANGEPLAIN', `[v=\\s]*(${src[t.XRANGEIDENTIFIER]})` +
+ `(?:\\.(${src[t.XRANGEIDENTIFIER]})` +
+ `(?:\\.(${src[t.XRANGEIDENTIFIER]})` +
+ `(?:${src[t.PRERELEASE]})?${
+ src[t.BUILD]}?` +
+ `)?)?`)
+
+createToken('XRANGEPLAINLOOSE', `[v=\\s]*(${src[t.XRANGEIDENTIFIERLOOSE]})` +
+ `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +
+ `(?:\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +
+ `(?:${src[t.PRERELEASELOOSE]})?${
+ src[t.BUILD]}?` +
+ `)?)?`)
+
+createToken('XRANGE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAIN]}$`)
+createToken('XRANGELOOSE', `^${src[t.GTLT]}\\s*${src[t.XRANGEPLAINLOOSE]}$`)
+
+// Coercion.
+// Extract anything that could conceivably be a part of a valid semver
+createToken('COERCE', `${'(^|[^\\d])' +
+ '(\\d{1,'}${MAX_SAFE_COMPONENT_LENGTH}})` +
+ `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` +
+ `(?:\\.(\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` +
+ `(?:$|[^\\d])`)
+createToken('COERCERTL', src[t.COERCE], true)
+
+// Tilde ranges.
+// Meaning is "reasonably at or greater than"
+createToken('LONETILDE', '(?:~>?)')
+
+createToken('TILDETRIM', `(\\s*)${src[t.LONETILDE]}\\s+`, true)
+exports.tildeTrimReplace = '$1~'
+
+createToken('TILDE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAIN]}$`)
+createToken('TILDELOOSE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAINLOOSE]}$`)
+
+// Caret ranges.
+// Meaning is "at least and backwards compatible with"
+createToken('LONECARET', '(?:\\^)')
+
+createToken('CARETTRIM', `(\\s*)${src[t.LONECARET]}\\s+`, true)
+exports.caretTrimReplace = '$1^'
+
+createToken('CARET', `^${src[t.LONECARET]}${src[t.XRANGEPLAIN]}$`)
+createToken('CARETLOOSE', `^${src[t.LONECARET]}${src[t.XRANGEPLAINLOOSE]}$`)
+
+// A simple gt/lt/eq thing, or just "" to indicate "any version"
+createToken('COMPARATORLOOSE', `^${src[t.GTLT]}\\s*(${src[t.LOOSEPLAIN]})$|^$`)
+createToken('COMPARATOR', `^${src[t.GTLT]}\\s*(${src[t.FULLPLAIN]})$|^$`)
+
+// An expression to strip any whitespace between the gtlt and the thing
+// it modifies, so that `> 1.2.3` ==> `>1.2.3`
+createToken('COMPARATORTRIM', `(\\s*)${src[t.GTLT]
+}\\s*(${src[t.LOOSEPLAIN]}|${src[t.XRANGEPLAIN]})`, true)
+exports.comparatorTrimReplace = '$1$2$3'
+
+// Something like `1.2.3 - 1.2.4`
+// Note that these all use the loose form, because they'll be
+// checked against either the strict or loose comparator form
+// later.
+createToken('HYPHENRANGE', `^\\s*(${src[t.XRANGEPLAIN]})` +
+ `\\s+-\\s+` +
+ `(${src[t.XRANGEPLAIN]})` +
+ `\\s*$`)
+
+createToken('HYPHENRANGELOOSE', `^\\s*(${src[t.XRANGEPLAINLOOSE]})` +
+ `\\s+-\\s+` +
+ `(${src[t.XRANGEPLAINLOOSE]})` +
+ `\\s*$`)
+
+// Star ranges basically just allow anything at all.
+createToken('STAR', '(<|>)?=?\\s*\\*')
+// >=0.0.0 is like a star
+createToken('GTE0', '^\\s*>=\\s*0\.0\.0\\s*$')
+createToken('GTE0PRE', '^\\s*>=\\s*0\.0\.0-0\\s*$')
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/package.json b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/package.json
new file mode 100644
index 0000000..fa99ec7
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/package.json
@@ -0,0 +1,73 @@
+{
+ "_from": "semver@^7.3.5",
+ "_id": "semver@7.3.5",
+ "_inBundle": false,
+ "_integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==",
+ "_location": "/@mapbox/node-pre-gyp/semver",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "semver@^7.3.5",
+ "name": "semver",
+ "escapedName": "semver",
+ "rawSpec": "^7.3.5",
+ "saveSpec": null,
+ "fetchSpec": "^7.3.5"
+ },
+ "_requiredBy": [
+ "/@mapbox/node-pre-gyp"
+ ],
+ "_resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
+ "_shasum": "0b621c879348d8998e4b0e4be94b3f12e6018ef7",
+ "_spec": "semver@^7.3.5",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/@mapbox/node-pre-gyp",
+ "bin": {
+ "semver": "bin/semver.js"
+ },
+ "bugs": {
+ "url": "https://github.com/npm/node-semver/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "lru-cache": "^6.0.0"
+ },
+ "deprecated": false,
+ "description": "The semantic version parser used by npm.",
+ "devDependencies": {
+ "tap": "^14.10.7"
+ },
+ "engines": {
+ "node": ">=10"
+ },
+ "files": [
+ "bin/**/*.js",
+ "range.bnf",
+ "classes/**/*.js",
+ "functions/**/*.js",
+ "internal/**/*.js",
+ "ranges/**/*.js",
+ "index.js",
+ "preload.js"
+ ],
+ "homepage": "https://github.com/npm/node-semver#readme",
+ "license": "ISC",
+ "main": "index.js",
+ "name": "semver",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/npm/node-semver.git"
+ },
+ "scripts": {
+ "postpublish": "git push origin --follow-tags",
+ "postversion": "npm publish",
+ "preversion": "npm test",
+ "snap": "tap",
+ "test": "tap"
+ },
+ "tap": {
+ "check-coverage": true,
+ "coverage-map": "map.js"
+ },
+ "version": "7.3.5"
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/preload.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/preload.js
new file mode 100644
index 0000000..947cd4f
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/preload.js
@@ -0,0 +1,2 @@
+// XXX remove in v8 or beyond
+module.exports = require('./index.js')
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/range.bnf b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/range.bnf
new file mode 100644
index 0000000..d4c6ae0
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/range.bnf
@@ -0,0 +1,16 @@
+range-set ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen ::= partial ' - ' partial
+simple ::= primitive | partial | tilde | caret
+primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr ::= 'x' | 'X' | '*' | nr
+nr ::= '0' | [1-9] ( [0-9] ) *
+tilde ::= '~' partial
+caret ::= '^' partial
+qualifier ::= ( '-' pre )? ( '+' build )?
+pre ::= parts
+build ::= parts
+parts ::= part ( '.' part ) *
+part ::= nr | [-0-9A-Za-z]+
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/gtr.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/gtr.js
new file mode 100644
index 0000000..db7e355
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/gtr.js
@@ -0,0 +1,4 @@
+// Determine if version is greater than all the versions possible in the range.
+const outside = require('./outside')
+const gtr = (version, range, options) => outside(version, range, '>', options)
+module.exports = gtr
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/intersects.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/intersects.js
new file mode 100644
index 0000000..3d1a6f3
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/intersects.js
@@ -0,0 +1,7 @@
+const Range = require('../classes/range')
+const intersects = (r1, r2, options) => {
+ r1 = new Range(r1, options)
+ r2 = new Range(r2, options)
+ return r1.intersects(r2)
+}
+module.exports = intersects
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/ltr.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/ltr.js
new file mode 100644
index 0000000..528a885
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/ltr.js
@@ -0,0 +1,4 @@
+const outside = require('./outside')
+// Determine if version is less than all the versions possible in the range
+const ltr = (version, range, options) => outside(version, range, '<', options)
+module.exports = ltr
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/max-satisfying.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/max-satisfying.js
new file mode 100644
index 0000000..6e3d993
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/max-satisfying.js
@@ -0,0 +1,25 @@
+const SemVer = require('../classes/semver')
+const Range = require('../classes/range')
+
+const maxSatisfying = (versions, range, options) => {
+ let max = null
+ let maxSV = null
+ let rangeObj = null
+ try {
+ rangeObj = new Range(range, options)
+ } catch (er) {
+ return null
+ }
+ versions.forEach((v) => {
+ if (rangeObj.test(v)) {
+ // satisfies(v, range, options)
+ if (!max || maxSV.compare(v) === -1) {
+ // compare(max, v, true)
+ max = v
+ maxSV = new SemVer(max, options)
+ }
+ }
+ })
+ return max
+}
+module.exports = maxSatisfying
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/min-satisfying.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/min-satisfying.js
new file mode 100644
index 0000000..9b60974
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/min-satisfying.js
@@ -0,0 +1,24 @@
+const SemVer = require('../classes/semver')
+const Range = require('../classes/range')
+const minSatisfying = (versions, range, options) => {
+ let min = null
+ let minSV = null
+ let rangeObj = null
+ try {
+ rangeObj = new Range(range, options)
+ } catch (er) {
+ return null
+ }
+ versions.forEach((v) => {
+ if (rangeObj.test(v)) {
+ // satisfies(v, range, options)
+ if (!min || minSV.compare(v) === 1) {
+ // compare(min, v, true)
+ min = v
+ minSV = new SemVer(min, options)
+ }
+ }
+ })
+ return min
+}
+module.exports = minSatisfying
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/min-version.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/min-version.js
new file mode 100644
index 0000000..2fac412
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/min-version.js
@@ -0,0 +1,60 @@
+const SemVer = require('../classes/semver')
+const Range = require('../classes/range')
+const gt = require('../functions/gt')
+
+const minVersion = (range, loose) => {
+ range = new Range(range, loose)
+
+ let minver = new SemVer('0.0.0')
+ if (range.test(minver)) {
+ return minver
+ }
+
+ minver = new SemVer('0.0.0-0')
+ if (range.test(minver)) {
+ return minver
+ }
+
+ minver = null
+ for (let i = 0; i < range.set.length; ++i) {
+ const comparators = range.set[i]
+
+ let setMin = null
+ comparators.forEach((comparator) => {
+ // Clone to avoid manipulating the comparator's semver object.
+ const compver = new SemVer(comparator.semver.version)
+ switch (comparator.operator) {
+ case '>':
+ if (compver.prerelease.length === 0) {
+ compver.patch++
+ } else {
+ compver.prerelease.push(0)
+ }
+ compver.raw = compver.format()
+ /* fallthrough */
+ case '':
+ case '>=':
+ if (!setMin || gt(compver, setMin)) {
+ setMin = compver
+ }
+ break
+ case '<':
+ case '<=':
+ /* Ignore maximum versions */
+ break
+ /* istanbul ignore next */
+ default:
+ throw new Error(`Unexpected operation: ${comparator.operator}`)
+ }
+ })
+ if (setMin && (!minver || gt(minver, setMin)))
+ minver = setMin
+ }
+
+ if (minver && range.test(minver)) {
+ return minver
+ }
+
+ return null
+}
+module.exports = minVersion
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/outside.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/outside.js
new file mode 100644
index 0000000..2a4b0a1
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/outside.js
@@ -0,0 +1,80 @@
+const SemVer = require('../classes/semver')
+const Comparator = require('../classes/comparator')
+const {ANY} = Comparator
+const Range = require('../classes/range')
+const satisfies = require('../functions/satisfies')
+const gt = require('../functions/gt')
+const lt = require('../functions/lt')
+const lte = require('../functions/lte')
+const gte = require('../functions/gte')
+
+const outside = (version, range, hilo, options) => {
+ version = new SemVer(version, options)
+ range = new Range(range, options)
+
+ let gtfn, ltefn, ltfn, comp, ecomp
+ switch (hilo) {
+ case '>':
+ gtfn = gt
+ ltefn = lte
+ ltfn = lt
+ comp = '>'
+ ecomp = '>='
+ break
+ case '<':
+ gtfn = lt
+ ltefn = gte
+ ltfn = gt
+ comp = '<'
+ ecomp = '<='
+ break
+ default:
+ throw new TypeError('Must provide a hilo val of "<" or ">"')
+ }
+
+ // If it satisfies the range it is not outside
+ if (satisfies(version, range, options)) {
+ return false
+ }
+
+ // From now on, variable terms are as if we're in "gtr" mode.
+ // but note that everything is flipped for the "ltr" function.
+
+ for (let i = 0; i < range.set.length; ++i) {
+ const comparators = range.set[i]
+
+ let high = null
+ let low = null
+
+ comparators.forEach((comparator) => {
+ if (comparator.semver === ANY) {
+ comparator = new Comparator('>=0.0.0')
+ }
+ high = high || comparator
+ low = low || comparator
+ if (gtfn(comparator.semver, high.semver, options)) {
+ high = comparator
+ } else if (ltfn(comparator.semver, low.semver, options)) {
+ low = comparator
+ }
+ })
+
+ // If the edge version comparator has a operator then our version
+ // isn't outside it
+ if (high.operator === comp || high.operator === ecomp) {
+ return false
+ }
+
+ // If the lowest version comparator has an operator and our version
+ // is less than it then it isn't higher than the range
+ if ((!low.operator || low.operator === comp) &&
+ ltefn(version, low.semver)) {
+ return false
+ } else if (low.operator === ecomp && ltfn(version, low.semver)) {
+ return false
+ }
+ }
+ return true
+}
+
+module.exports = outside
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/simplify.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/simplify.js
new file mode 100644
index 0000000..b792f97
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/simplify.js
@@ -0,0 +1,44 @@
+// given a set of versions and a range, create a "simplified" range
+// that includes the same versions that the original range does
+// If the original range is shorter than the simplified one, return that.
+const satisfies = require('../functions/satisfies.js')
+const compare = require('../functions/compare.js')
+module.exports = (versions, range, options) => {
+ const set = []
+ let min = null
+ let prev = null
+ const v = versions.sort((a, b) => compare(a, b, options))
+ for (const version of v) {
+ const included = satisfies(version, range, options)
+ if (included) {
+ prev = version
+ if (!min)
+ min = version
+ } else {
+ if (prev) {
+ set.push([min, prev])
+ }
+ prev = null
+ min = null
+ }
+ }
+ if (min)
+ set.push([min, null])
+
+ const ranges = []
+ for (const [min, max] of set) {
+ if (min === max)
+ ranges.push(min)
+ else if (!max && min === v[0])
+ ranges.push('*')
+ else if (!max)
+ ranges.push(`>=${min}`)
+ else if (min === v[0])
+ ranges.push(`<=${max}`)
+ else
+ ranges.push(`${min} - ${max}`)
+ }
+ const simplified = ranges.join(' || ')
+ const original = typeof range.raw === 'string' ? range.raw : String(range)
+ return simplified.length < original.length ? simplified : range
+}
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/subset.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/subset.js
new file mode 100644
index 0000000..532fd13
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/subset.js
@@ -0,0 +1,222 @@
+const Range = require('../classes/range.js')
+const Comparator = require('../classes/comparator.js')
+const { ANY } = Comparator
+const satisfies = require('../functions/satisfies.js')
+const compare = require('../functions/compare.js')
+
+// Complex range `r1 || r2 || ...` is a subset of `R1 || R2 || ...` iff:
+// - Every simple range `r1, r2, ...` is a null set, OR
+// - Every simple range `r1, r2, ...` which is not a null set is a subset of
+// some `R1, R2, ...`
+//
+// Simple range `c1 c2 ...` is a subset of simple range `C1 C2 ...` iff:
+// - If c is only the ANY comparator
+// - If C is only the ANY comparator, return true
+// - Else if in prerelease mode, return false
+// - else replace c with `[>=0.0.0]`
+// - If C is only the ANY comparator
+// - if in prerelease mode, return true
+// - else replace C with `[>=0.0.0]`
+// - Let EQ be the set of = comparators in c
+// - If EQ is more than one, return true (null set)
+// - Let GT be the highest > or >= comparator in c
+// - Let LT be the lowest < or <= comparator in c
+// - If GT and LT, and GT.semver > LT.semver, return true (null set)
+// - If any C is a = range, and GT or LT are set, return false
+// - If EQ
+// - If GT, and EQ does not satisfy GT, return true (null set)
+// - If LT, and EQ does not satisfy LT, return true (null set)
+// - If EQ satisfies every C, return true
+// - Else return false
+// - If GT
+// - If GT.semver is lower than any > or >= comp in C, return false
+// - If GT is >=, and GT.semver does not satisfy every C, return false
+// - If GT.semver has a prerelease, and not in prerelease mode
+// - If no C has a prerelease and the GT.semver tuple, return false
+// - If LT
+// - If LT.semver is greater than any < or <= comp in C, return false
+// - If LT is <=, and LT.semver does not satisfy every C, return false
+// - If GT.semver has a prerelease, and not in prerelease mode
+// - If no C has a prerelease and the LT.semver tuple, return false
+// - Else return true
+
+const subset = (sub, dom, options = {}) => {
+ if (sub === dom)
+ return true
+
+ sub = new Range(sub, options)
+ dom = new Range(dom, options)
+ let sawNonNull = false
+
+ OUTER: for (const simpleSub of sub.set) {
+ for (const simpleDom of dom.set) {
+ const isSub = simpleSubset(simpleSub, simpleDom, options)
+ sawNonNull = sawNonNull || isSub !== null
+ if (isSub)
+ continue OUTER
+ }
+ // the null set is a subset of everything, but null simple ranges in
+ // a complex range should be ignored. so if we saw a non-null range,
+ // then we know this isn't a subset, but if EVERY simple range was null,
+ // then it is a subset.
+ if (sawNonNull)
+ return false
+ }
+ return true
+}
+
+const simpleSubset = (sub, dom, options) => {
+ if (sub === dom)
+ return true
+
+ if (sub.length === 1 && sub[0].semver === ANY) {
+ if (dom.length === 1 && dom[0].semver === ANY)
+ return true
+ else if (options.includePrerelease)
+ sub = [ new Comparator('>=0.0.0-0') ]
+ else
+ sub = [ new Comparator('>=0.0.0') ]
+ }
+
+ if (dom.length === 1 && dom[0].semver === ANY) {
+ if (options.includePrerelease)
+ return true
+ else
+ dom = [ new Comparator('>=0.0.0') ]
+ }
+
+ const eqSet = new Set()
+ let gt, lt
+ for (const c of sub) {
+ if (c.operator === '>' || c.operator === '>=')
+ gt = higherGT(gt, c, options)
+ else if (c.operator === '<' || c.operator === '<=')
+ lt = lowerLT(lt, c, options)
+ else
+ eqSet.add(c.semver)
+ }
+
+ if (eqSet.size > 1)
+ return null
+
+ let gtltComp
+ if (gt && lt) {
+ gtltComp = compare(gt.semver, lt.semver, options)
+ if (gtltComp > 0)
+ return null
+ else if (gtltComp === 0 && (gt.operator !== '>=' || lt.operator !== '<='))
+ return null
+ }
+
+ // will iterate one or zero times
+ for (const eq of eqSet) {
+ if (gt && !satisfies(eq, String(gt), options))
+ return null
+
+ if (lt && !satisfies(eq, String(lt), options))
+ return null
+
+ for (const c of dom) {
+ if (!satisfies(eq, String(c), options))
+ return false
+ }
+
+ return true
+ }
+
+ let higher, lower
+ let hasDomLT, hasDomGT
+ // if the subset has a prerelease, we need a comparator in the superset
+ // with the same tuple and a prerelease, or it's not a subset
+ let needDomLTPre = lt &&
+ !options.includePrerelease &&
+ lt.semver.prerelease.length ? lt.semver : false
+ let needDomGTPre = gt &&
+ !options.includePrerelease &&
+ gt.semver.prerelease.length ? gt.semver : false
+ // exception: <1.2.3-0 is the same as <1.2.3
+ if (needDomLTPre && needDomLTPre.prerelease.length === 1 &&
+ lt.operator === '<' && needDomLTPre.prerelease[0] === 0) {
+ needDomLTPre = false
+ }
+
+ for (const c of dom) {
+ hasDomGT = hasDomGT || c.operator === '>' || c.operator === '>='
+ hasDomLT = hasDomLT || c.operator === '<' || c.operator === '<='
+ if (gt) {
+ if (needDomGTPre) {
+ if (c.semver.prerelease && c.semver.prerelease.length &&
+ c.semver.major === needDomGTPre.major &&
+ c.semver.minor === needDomGTPre.minor &&
+ c.semver.patch === needDomGTPre.patch) {
+ needDomGTPre = false
+ }
+ }
+ if (c.operator === '>' || c.operator === '>=') {
+ higher = higherGT(gt, c, options)
+ if (higher === c && higher !== gt)
+ return false
+ } else if (gt.operator === '>=' && !satisfies(gt.semver, String(c), options))
+ return false
+ }
+ if (lt) {
+ if (needDomLTPre) {
+ if (c.semver.prerelease && c.semver.prerelease.length &&
+ c.semver.major === needDomLTPre.major &&
+ c.semver.minor === needDomLTPre.minor &&
+ c.semver.patch === needDomLTPre.patch) {
+ needDomLTPre = false
+ }
+ }
+ if (c.operator === '<' || c.operator === '<=') {
+ lower = lowerLT(lt, c, options)
+ if (lower === c && lower !== lt)
+ return false
+ } else if (lt.operator === '<=' && !satisfies(lt.semver, String(c), options))
+ return false
+ }
+ if (!c.operator && (lt || gt) && gtltComp !== 0)
+ return false
+ }
+
+ // if there was a < or >, and nothing in the dom, then must be false
+ // UNLESS it was limited by another range in the other direction.
+ // Eg, >1.0.0 <1.0.1 is still a subset of <2.0.0
+ if (gt && hasDomLT && !lt && gtltComp !== 0)
+ return false
+
+ if (lt && hasDomGT && !gt && gtltComp !== 0)
+ return false
+
+ // we needed a prerelease range in a specific tuple, but didn't get one
+ // then this isn't a subset. eg >=1.2.3-pre is not a subset of >=1.0.0,
+ // because it includes prereleases in the 1.2.3 tuple
+ if (needDomGTPre || needDomLTPre)
+ return false
+
+ return true
+}
+
+// >=1.2.3 is lower than >1.2.3
+const higherGT = (a, b, options) => {
+ if (!a)
+ return b
+ const comp = compare(a.semver, b.semver, options)
+ return comp > 0 ? a
+ : comp < 0 ? b
+ : b.operator === '>' && a.operator === '>=' ? b
+ : a
+}
+
+// <=1.2.3 is higher than <1.2.3
+const lowerLT = (a, b, options) => {
+ if (!a)
+ return b
+ const comp = compare(a.semver, b.semver, options)
+ return comp < 0 ? a
+ : comp > 0 ? b
+ : b.operator === '<' && a.operator === '<=' ? b
+ : a
+}
+
+module.exports = subset
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/to-comparators.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/to-comparators.js
new file mode 100644
index 0000000..6c8bc7e
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/to-comparators.js
@@ -0,0 +1,8 @@
+const Range = require('../classes/range')
+
+// Mostly just for testing and legacy API reasons
+const toComparators = (range, options) =>
+ new Range(range, options).set
+ .map(comp => comp.map(c => c.value).join(' ').trim().split(' '))
+
+module.exports = toComparators
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/valid.js b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/valid.js
new file mode 100644
index 0000000..365f356
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/node_modules/semver/ranges/valid.js
@@ -0,0 +1,11 @@
+const Range = require('../classes/range')
+const validRange = (range, options) => {
+ try {
+ // Return '*' instead of '' so that truthiness works.
+ // This will throw if it's invalid anyway
+ return new Range(range, options).range || '*'
+ } catch (er) {
+ return null
+ }
+}
+module.exports = validRange
diff --git a/backend/node_modules/@mapbox/node-pre-gyp/package.json b/backend/node_modules/@mapbox/node-pre-gyp/package.json
new file mode 100644
index 0000000..77fcda9
--- /dev/null
+++ b/backend/node_modules/@mapbox/node-pre-gyp/package.json
@@ -0,0 +1,101 @@
+{
+ "_from": "@mapbox/node-pre-gyp@^1.0.0",
+ "_id": "@mapbox/node-pre-gyp@1.0.7",
+ "_inBundle": false,
+ "_integrity": "sha512-PplSvl4pJ5N3BkVjAdDzpPhVUPdC73JgttkR+LnBx2OORC1GCQsBjUeEuipf9uOaAM1SbxcdZFfR3KDTKm2S0A==",
+ "_location": "/@mapbox/node-pre-gyp",
+ "_phantomChildren": {
+ "abbrev": "1.1.1",
+ "lru-cache": "6.0.0"
+ },
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "@mapbox/node-pre-gyp@^1.0.0",
+ "name": "@mapbox/node-pre-gyp",
+ "escapedName": "@mapbox%2fnode-pre-gyp",
+ "scope": "@mapbox",
+ "rawSpec": "^1.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^1.0.0"
+ },
+ "_requiredBy": [
+ "/bcrypt"
+ ],
+ "_resolved": "https://registry.npmjs.org/@mapbox/node-pre-gyp/-/node-pre-gyp-1.0.7.tgz",
+ "_shasum": "a26919cac6595662703330d1820a0ca206f45521",
+ "_spec": "@mapbox/node-pre-gyp@^1.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/bcrypt",
+ "author": {
+ "name": "Dane Springmeyer",
+ "email": "dane@mapbox.com"
+ },
+ "bin": {
+ "node-pre-gyp": "bin/node-pre-gyp"
+ },
+ "bugs": {
+ "url": "https://github.com/mapbox/node-pre-gyp/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "detect-libc": "^1.0.3",
+ "https-proxy-agent": "^5.0.0",
+ "make-dir": "^3.1.0",
+ "node-fetch": "^2.6.5",
+ "nopt": "^5.0.0",
+ "npmlog": "^6.0.0",
+ "rimraf": "^3.0.2",
+ "semver": "^7.3.5",
+ "tar": "^6.1.11"
+ },
+ "deprecated": false,
+ "description": "Node.js native addon binary install tool",
+ "devDependencies": {
+ "@mapbox/cloudfriend": "^5.1.0",
+ "@mapbox/eslint-config-mapbox": "^3.0.0",
+ "action-walk": "^2.2.0",
+ "aws-sdk": "^2.1012.0",
+ "codecov": "^3.8.3",
+ "eslint": "^7.32.0",
+ "eslint-plugin-node": "^11.1.0",
+ "mock-aws-s3": "^4.0.2",
+ "nock": "^12.0.3",
+ "node-addon-api": "^4.2.0",
+ "nyc": "^15.1.0",
+ "tape": "^5.3.1",
+ "tar-fs": "^2.1.1"
+ },
+ "homepage": "https://github.com/mapbox/node-pre-gyp#readme",
+ "keywords": [
+ "native",
+ "addon",
+ "module",
+ "c",
+ "c++",
+ "bindings",
+ "binary"
+ ],
+ "license": "BSD-3-Clause",
+ "main": "./lib/node-pre-gyp.js",
+ "name": "@mapbox/node-pre-gyp",
+ "nyc": {
+ "all": true,
+ "skip-full": false,
+ "exclude": [
+ "test/**"
+ ]
+ },
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/mapbox/node-pre-gyp.git"
+ },
+ "scripts": {
+ "coverage": "nyc --all --include index.js --include lib/ npm test",
+ "fix": "npm run lint -- --fix",
+ "lint": "eslint bin/node-pre-gyp lib/*js lib/util/*js test/*js scripts/*js",
+ "test": "tape test/*test.js",
+ "update-crosswalk": "node scripts/abi_crosswalk.js",
+ "upload-coverage": "nyc report --reporter json && codecov --clear --flags=unit --file=./coverage/coverage-final.json"
+ },
+ "version": "1.0.7"
+}
diff --git a/backend/node_modules/agent-base/README.md b/backend/node_modules/agent-base/README.md
new file mode 100644
index 0000000..256f1f3
--- /dev/null
+++ b/backend/node_modules/agent-base/README.md
@@ -0,0 +1,145 @@
+agent-base
+==========
+### Turn a function into an [`http.Agent`][http.Agent] instance
+[](https://github.com/TooTallNate/node-agent-base/actions?workflow=Node+CI)
+
+This module provides an `http.Agent` generator. That is, you pass it an async
+callback function, and it returns a new `http.Agent` instance that will invoke the
+given callback function when sending outbound HTTP requests.
+
+#### Some subclasses:
+
+Here's some more interesting uses of `agent-base`.
+Send a pull request to list yours!
+
+ * [`http-proxy-agent`][http-proxy-agent]: An HTTP(s) proxy `http.Agent` implementation for HTTP endpoints
+ * [`https-proxy-agent`][https-proxy-agent]: An HTTP(s) proxy `http.Agent` implementation for HTTPS endpoints
+ * [`pac-proxy-agent`][pac-proxy-agent]: A PAC file proxy `http.Agent` implementation for HTTP and HTTPS
+ * [`socks-proxy-agent`][socks-proxy-agent]: A SOCKS proxy `http.Agent` implementation for HTTP and HTTPS
+
+
+Installation
+------------
+
+Install with `npm`:
+
+``` bash
+$ npm install agent-base
+```
+
+
+Example
+-------
+
+Here's a minimal example that creates a new `net.Socket` connection to the server
+for every HTTP request (i.e. the equivalent of `agent: false` option):
+
+```js
+var net = require('net');
+var tls = require('tls');
+var url = require('url');
+var http = require('http');
+var agent = require('agent-base');
+
+var endpoint = 'http://nodejs.org/api/';
+var parsed = url.parse(endpoint);
+
+// This is the important part!
+parsed.agent = agent(function (req, opts) {
+ var socket;
+ // `secureEndpoint` is true when using the https module
+ if (opts.secureEndpoint) {
+ socket = tls.connect(opts);
+ } else {
+ socket = net.connect(opts);
+ }
+ return socket;
+});
+
+// Everything else works just like normal...
+http.get(parsed, function (res) {
+ console.log('"response" event!', res.headers);
+ res.pipe(process.stdout);
+});
+```
+
+Returning a Promise or using an `async` function is also supported:
+
+```js
+agent(async function (req, opts) {
+ await sleep(1000);
+ // etc…
+});
+```
+
+Return another `http.Agent` instance to "pass through" the responsibility
+for that HTTP request to that agent:
+
+```js
+agent(function (req, opts) {
+ return opts.secureEndpoint ? https.globalAgent : http.globalAgent;
+});
+```
+
+
+API
+---
+
+## Agent(Function callback[, Object options]) → [http.Agent][]
+
+Creates a base `http.Agent` that will execute the callback function `callback`
+for every HTTP request that it is used as the `agent` for. The callback function
+is responsible for creating a `stream.Duplex` instance of some kind that will be
+used as the underlying socket in the HTTP request.
+
+The `options` object accepts the following properties:
+
+ * `timeout` - Number - Timeout for the `callback()` function in milliseconds. Defaults to Infinity (optional).
+
+The callback function should have the following signature:
+
+### callback(http.ClientRequest req, Object options, Function cb) → undefined
+
+The ClientRequest `req` can be accessed to read request headers and
+and the path, etc. The `options` object contains the options passed
+to the `http.request()`/`https.request()` function call, and is formatted
+to be directly passed to `net.connect()`/`tls.connect()`, or however
+else you want a Socket to be created. Pass the created socket to
+the callback function `cb` once created, and the HTTP request will
+continue to proceed.
+
+If the `https` module is used to invoke the HTTP request, then the
+`secureEndpoint` property on `options` _will be set to `true`_.
+
+
+License
+-------
+
+(The MIT License)
+
+Copyright (c) 2013 Nathan Rajlich <nathan@tootallnate.net>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+[http-proxy-agent]: https://github.com/TooTallNate/node-http-proxy-agent
+[https-proxy-agent]: https://github.com/TooTallNate/node-https-proxy-agent
+[pac-proxy-agent]: https://github.com/TooTallNate/node-pac-proxy-agent
+[socks-proxy-agent]: https://github.com/TooTallNate/node-socks-proxy-agent
+[http.Agent]: https://nodejs.org/api/http.html#http_class_http_agent
diff --git a/backend/node_modules/agent-base/dist/src/index.d.ts b/backend/node_modules/agent-base/dist/src/index.d.ts
new file mode 100644
index 0000000..bc4ab74
--- /dev/null
+++ b/backend/node_modules/agent-base/dist/src/index.d.ts
@@ -0,0 +1,78 @@
+/// <reference types="node" />
+import net from 'net';
+import http from 'http';
+import https from 'https';
+import { Duplex } from 'stream';
+import { EventEmitter } from 'events';
+declare function createAgent(opts?: createAgent.AgentOptions): createAgent.Agent;
+declare function createAgent(callback: createAgent.AgentCallback, opts?: createAgent.AgentOptions): createAgent.Agent;
+declare namespace createAgent {
+ interface ClientRequest extends http.ClientRequest {
+ _last?: boolean;
+ _hadError?: boolean;
+ method: string;
+ }
+ interface AgentRequestOptions {
+ host?: string;
+ path?: string;
+ port: number;
+ }
+ interface HttpRequestOptions extends AgentRequestOptions, Omit<http.RequestOptions, keyof AgentRequestOptions> {
+ secureEndpoint: false;
+ }
+ interface HttpsRequestOptions extends AgentRequestOptions, Omit<https.RequestOptions, keyof AgentRequestOptions> {
+ secureEndpoint: true;
+ }
+ type RequestOptions = HttpRequestOptions | HttpsRequestOptions;
+ type AgentLike = Pick<createAgent.Agent, 'addRequest'> | http.Agent;
+ type AgentCallbackReturn = Duplex | AgentLike;
+ type AgentCallbackCallback = (err?: Error | null, socket?: createAgent.AgentCallbackReturn) => void;
+ type AgentCallbackPromise = (req: createAgent.ClientRequest, opts: createAgent.RequestOptions) => createAgent.AgentCallbackReturn | Promise<createAgent.AgentCallbackReturn>;
+ type AgentCallback = typeof Agent.prototype.callback;
+ type AgentOptions = {
+ timeout?: number;
+ };
+ /**
+ * Base `http.Agent` implementation.
+ * No pooling/keep-alive is implemented by default.
+ *
+ * @param {Function} callback
+ * @api public
+ */
+ class Agent extends EventEmitter {
+ timeout: number | null;
+ maxFreeSockets: number;
+ maxTotalSockets: number;
+ maxSockets: number;
+ sockets: {
+ [key: string]: net.Socket[];
+ };
+ freeSockets: {
+ [key: string]: net.Socket[];
+ };
+ requests: {
+ [key: string]: http.IncomingMessage[];
+ };
+ options: https.AgentOptions;
+ private promisifiedCallback?;
+ private explicitDefaultPort?;
+ private explicitProtocol?;
+ constructor(callback?: createAgent.AgentCallback | createAgent.AgentOptions, _opts?: createAgent.AgentOptions);
+ get defaultPort(): number;
+ set defaultPort(v: number);
+ get protocol(): string;
+ set protocol(v: string);
+ callback(req: createAgent.ClientRequest, opts: createAgent.RequestOptions, fn: createAgent.AgentCallbackCallback): void;
+ callback(req: createAgent.ClientRequest, opts: createAgent.RequestOptions): createAgent.AgentCallbackReturn | Promise<createAgent.AgentCallbackReturn>;
+ /**
+ * Called by node-core's "_http_client.js" module when creating
+ * a new HTTP request with this Agent instance.
+ *
+ * @api public
+ */
+ addRequest(req: ClientRequest, _opts: RequestOptions): void;
+ freeSocket(socket: net.Socket, opts: AgentOptions): void;
+ destroy(): void;
+ }
+}
+export = createAgent;
diff --git a/backend/node_modules/agent-base/dist/src/index.js b/backend/node_modules/agent-base/dist/src/index.js
new file mode 100644
index 0000000..bfd9e22
--- /dev/null
+++ b/backend/node_modules/agent-base/dist/src/index.js
@@ -0,0 +1,203 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+ return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+const events_1 = require("events");
+const debug_1 = __importDefault(require("debug"));
+const promisify_1 = __importDefault(require("./promisify"));
+const debug = debug_1.default('agent-base');
+function isAgent(v) {
+ return Boolean(v) && typeof v.addRequest === 'function';
+}
+function isSecureEndpoint() {
+ const { stack } = new Error();
+ if (typeof stack !== 'string')
+ return false;
+ return stack.split('\n').some(l => l.indexOf('(https.js:') !== -1 || l.indexOf('node:https:') !== -1);
+}
+function createAgent(callback, opts) {
+ return new createAgent.Agent(callback, opts);
+}
+(function (createAgent) {
+ /**
+ * Base `http.Agent` implementation.
+ * No pooling/keep-alive is implemented by default.
+ *
+ * @param {Function} callback
+ * @api public
+ */
+ class Agent extends events_1.EventEmitter {
+ constructor(callback, _opts) {
+ super();
+ let opts = _opts;
+ if (typeof callback === 'function') {
+ this.callback = callback;
+ }
+ else if (callback) {
+ opts = callback;
+ }
+ // Timeout for the socket to be returned from the callback
+ this.timeout = null;
+ if (opts && typeof opts.timeout === 'number') {
+ this.timeout = opts.timeout;
+ }
+ // These aren't actually used by `agent-base`, but are required
+ // for the TypeScript definition files in `@types/node` :/
+ this.maxFreeSockets = 1;
+ this.maxSockets = 1;
+ this.maxTotalSockets = Infinity;
+ this.sockets = {};
+ this.freeSockets = {};
+ this.requests = {};
+ this.options = {};
+ }
+ get defaultPort() {
+ if (typeof this.explicitDefaultPort === 'number') {
+ return this.explicitDefaultPort;
+ }
+ return isSecureEndpoint() ? 443 : 80;
+ }
+ set defaultPort(v) {
+ this.explicitDefaultPort = v;
+ }
+ get protocol() {
+ if (typeof this.explicitProtocol === 'string') {
+ return this.explicitProtocol;
+ }
+ return isSecureEndpoint() ? 'https:' : 'http:';
+ }
+ set protocol(v) {
+ this.explicitProtocol = v;
+ }
+ callback(req, opts, fn) {
+ throw new Error('"agent-base" has no default implementation, you must subclass and override `callback()`');
+ }
+ /**
+ * Called by node-core's "_http_client.js" module when creating
+ * a new HTTP request with this Agent instance.
+ *
+ * @api public
+ */
+ addRequest(req, _opts) {
+ const opts = Object.assign({}, _opts);
+ if (typeof opts.secureEndpoint !== 'boolean') {
+ opts.secureEndpoint = isSecureEndpoint();
+ }
+ if (opts.host == null) {
+ opts.host = 'localhost';
+ }
+ if (opts.port == null) {
+ opts.port = opts.secureEndpoint ? 443 : 80;
+ }
+ if (opts.protocol == null) {
+ opts.protocol = opts.secureEndpoint ? 'https:' : 'http:';
+ }
+ if (opts.host && opts.path) {
+ // If both a `host` and `path` are specified then it's most
+ // likely the result of a `url.parse()` call... we need to
+ // remove the `path` portion so that `net.connect()` doesn't
+ // attempt to open that as a unix socket file.
+ delete opts.path;
+ }
+ delete opts.agent;
+ delete opts.hostname;
+ delete opts._defaultAgent;
+ delete opts.defaultPort;
+ delete opts.createConnection;
+ // Hint to use "Connection: close"
+ // XXX: non-documented `http` module API :(
+ req._last = true;
+ req.shouldKeepAlive = false;
+ let timedOut = false;
+ let timeoutId = null;
+ const timeoutMs = opts.timeout || this.timeout;
+ const onerror = (err) => {
+ if (req._hadError)
+ return;
+ req.emit('error', err);
+ // For Safety. Some additional errors might fire later on
+ // and we need to make sure we don't double-fire the error event.
+ req._hadError = true;
+ };
+ const ontimeout = () => {
+ timeoutId = null;
+ timedOut = true;
+ const err = new Error(`A "socket" was not created for HTTP request before ${timeoutMs}ms`);
+ err.code = 'ETIMEOUT';
+ onerror(err);
+ };
+ const callbackError = (err) => {
+ if (timedOut)
+ return;
+ if (timeoutId !== null) {
+ clearTimeout(timeoutId);
+ timeoutId = null;
+ }
+ onerror(err);
+ };
+ const onsocket = (socket) => {
+ if (timedOut)
+ return;
+ if (timeoutId != null) {
+ clearTimeout(timeoutId);
+ timeoutId = null;
+ }
+ if (isAgent(socket)) {
+ // `socket` is actually an `http.Agent` instance, so
+ // relinquish responsibility for this `req` to the Agent
+ // from here on
+ debug('Callback returned another Agent instance %o', socket.constructor.name);
+ socket.addRequest(req, opts);
+ return;
+ }
+ if (socket) {
+ socket.once('free', () => {
+ this.freeSocket(socket, opts);
+ });
+ req.onSocket(socket);
+ return;
+ }
+ const err = new Error(`no Duplex stream was returned to agent-base for \`${req.method} ${req.path}\``);
+ onerror(err);
+ };
+ if (typeof this.callback !== 'function') {
+ onerror(new Error('`callback` is not defined'));
+ return;
+ }
+ if (!this.promisifiedCallback) {
+ if (this.callback.length >= 3) {
+ debug('Converting legacy callback function to promise');
+ this.promisifiedCallback = promisify_1.default(this.callback);
+ }
+ else {
+ this.promisifiedCallback = this.callback;
+ }
+ }
+ if (typeof timeoutMs === 'number' && timeoutMs > 0) {
+ timeoutId = setTimeout(ontimeout, timeoutMs);
+ }
+ if ('port' in opts && typeof opts.port !== 'number') {
+ opts.port = Number(opts.port);
+ }
+ try {
+ debug('Resolving socket for %o request: %o', opts.protocol, `${req.method} ${req.path}`);
+ Promise.resolve(this.promisifiedCallback(req, opts)).then(onsocket, callbackError);
+ }
+ catch (err) {
+ Promise.reject(err).catch(callbackError);
+ }
+ }
+ freeSocket(socket, opts) {
+ debug('Freeing socket %o %o', socket.constructor.name, opts);
+ socket.destroy();
+ }
+ destroy() {
+ debug('Destroying agent %o', this.constructor.name);
+ }
+ }
+ createAgent.Agent = Agent;
+ // So that `instanceof` works correctly
+ createAgent.prototype = createAgent.Agent.prototype;
+})(createAgent || (createAgent = {}));
+module.exports = createAgent;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/backend/node_modules/agent-base/dist/src/index.js.map b/backend/node_modules/agent-base/dist/src/index.js.map
new file mode 100644
index 0000000..bd118ab
--- /dev/null
+++ b/backend/node_modules/agent-base/dist/src/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";;;;AAIA,mCAAsC;AACtC,kDAAgC;AAChC,4DAAoC;AAEpC,MAAM,KAAK,GAAG,eAAW,CAAC,YAAY,CAAC,CAAC;AAExC,SAAS,OAAO,CAAC,CAAM;IACtB,OAAO,OAAO,CAAC,CAAC,CAAC,IAAI,OAAO,CAAC,CAAC,UAAU,KAAK,UAAU,CAAC;AACzD,CAAC;AAED,SAAS,gBAAgB;IACxB,MAAM,EAAE,KAAK,EAAE,GAAG,IAAI,KAAK,EAAE,CAAC;IAC9B,IAAI,OAAO,KAAK,KAAK,QAAQ;QAAE,OAAO,KAAK,CAAC;IAC5C,OAAO,KAAK,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,OAAO,CAAC,YAAY,CAAC,KAAK,CAAC,CAAC,IAAK,CAAC,CAAC,OAAO,CAAC,aAAa,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;AACxG,CAAC;AAOD,SAAS,WAAW,CACnB,QAA+D,EAC/D,IAA+B;IAE/B,OAAO,IAAI,WAAW,CAAC,KAAK,CAAC,QAAQ,EAAE,IAAI,CAAC,CAAC;AAC9C,CAAC;AAED,WAAU,WAAW;IAmDpB;;;;;;OAMG;IACH,MAAa,KAAM,SAAQ,qBAAY;QAmBtC,YACC,QAA+D,EAC/D,KAAgC;YAEhC,KAAK,EAAE,CAAC;YAER,IAAI,IAAI,GAAG,KAAK,CAAC;YACjB,IAAI,OAAO,QAAQ,KAAK,UAAU,EAAE;gBACnC,IAAI,CAAC,QAAQ,GAAG,QAAQ,CAAC;aACzB;iBAAM,IAAI,QAAQ,EAAE;gBACpB,IAAI,GAAG,QAAQ,CAAC;aAChB;YAED,0DAA0D;YAC1D,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC;YACpB,IAAI,IAAI,IAAI,OAAO,IAAI,CAAC,OAAO,KAAK,QAAQ,EAAE;gBAC7C,IAAI,CAAC,OAAO,GAAG,IAAI,CAAC,OAAO,CAAC;aAC5B;YAED,+DAA+D;YAC/D,0DAA0D;YAC1D,IAAI,CAAC,cAAc,GAAG,CAAC,CAAC;YACxB,IAAI,CAAC,UAAU,GAAG,CAAC,CAAC;YACpB,IAAI,CAAC,eAAe,GAAG,QAAQ,CAAC;YAChC,IAAI,CAAC,OAAO,GAAG,EAAE,CAAC;YAClB,IAAI,CAAC,WAAW,GAAG,EAAE,CAAC;YACtB,IAAI,CAAC,QAAQ,GAAG,EAAE,CAAC;YACnB,IAAI,CAAC,OAAO,GAAG,EAAE,CAAC;QACnB,CAAC;QAED,IAAI,WAAW;YACd,IAAI,OAAO,IAAI,CAAC,mBAAmB,KAAK,QAAQ,EAAE;gBACjD,OAAO,IAAI,CAAC,mBAAmB,CAAC;aAChC;YACD,OAAO,gBAAgB,EAAE,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC;QACtC,CAAC;QAED,IAAI,WAAW,CAAC,CAAS;YACxB,IAAI,CAAC,mBAAmB,GAAG,CAAC,CAAC;QAC9B,CAAC;QAED,IAAI,QAAQ;YACX,IAAI,OAAO,IAAI,CAAC,gBAAgB,KAAK,QAAQ,EAAE;gBAC9C,OAAO,IAAI,CAAC,gBAAgB,CAAC;aAC7B;YACD,OAAO,gBAAgB,EAAE,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,OAAO,CAAC;QAChD,CAAC;QAED,IAAI,QAAQ,CAAC,CAAS;YACrB,IAAI,CAAC,gBAAgB,GAAG,CAAC,CAAC;QAC3B,CAAC;QAaD,QAAQ,CACP,GAA8B,EAC9B,IAA8B,EAC9B,EAAsC;YAKtC,MAAM,IAAI,KAAK,CACd,yFAAyF,CACzF,CAAC;QACH,CAAC;QAED;;;;;WAKG;QACH,UAAU,CAAC,GAAkB,EAAE,KAAqB;YACnD,MAAM,IAAI,qBAAwB,KAAK,CAAE,CAAC;YAE1C,IAAI,OAAO,IAAI,CAAC,cAAc,KAAK,SAAS,EAAE;gBAC7C,IAAI,CAAC,cAAc,GAAG,gBAAgB,EAAE,CAAC;aACzC;YAED,IAAI,IAAI,CAAC,IAAI,IAAI,IAAI,EAAE;gBACtB,IAAI,CAAC,IAAI,GAAG,WAAW,CAAC;aACxB;YAED,IAAI,IAAI,CAAC,IAAI,IAAI,IAAI,EAAE;gBACtB,IAAI,CAAC,IAAI,GAAG,IAAI,CAAC,cAAc,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,EAAE,CAAC;aAC3C;YAED,IAAI,IAAI,CAAC,QAAQ,IAAI,IAAI,EAAE;gBAC1B,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,cAAc,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,OAAO,CAAC;aACzD;YAED,IAAI,IAAI,CAAC,IAAI,IAAI,IAAI,CAAC,IAAI,EAAE;gBAC3B,2DAA2D;gBAC3D,0DAA0D;gBAC1D,4DAA4D;gBAC5D,8CAA8C;gBAC9C,OAAO,IAAI,CAAC,IAAI,CAAC;aACjB;YAED,OAAO,IAAI,CAAC,KAAK,CAAC;YAClB,OAAO,IAAI,CAAC,QAAQ,CAAC;YACrB,OAAO,IAAI,CAAC,aAAa,CAAC;YAC1B,OAAO,IAAI,CAAC,WAAW,CAAC;YACxB,OAAO,IAAI,CAAC,gBAAgB,CAAC;YAE7B,kCAAkC;YAClC,2CAA2C;YAC3C,GAAG,CAAC,KAAK,GAAG,IAAI,CAAC;YACjB,GAAG,CAAC,eAAe,GAAG,KAAK,CAAC;YAE5B,IAAI,QAAQ,GAAG,KAAK,CAAC;YACrB,IAAI,SAAS,GAAyC,IAAI,CAAC;YAC3D,MAAM,SAAS,GAAG,IAAI,CAAC,OAAO,IAAI,IAAI,CAAC,OAAO,CAAC;YAE/C,MAAM,OAAO,GAAG,CAAC,GAA0B,EAAE,EAAE;gBAC9C,IAAI,GAAG,CAAC,SAAS;oBAAE,OAAO;gBAC1B,GAAG,CAAC,IAAI,CAAC,OAAO,EAAE,GAAG,CAAC,CAAC;gBACvB,yDAAyD;gBACzD,iEAAiE;gBACjE,GAAG,CAAC,SAAS,GAAG,IAAI,CAAC;YACtB,CAAC,CAAC;YAEF,MAAM,SAAS,GAAG,GAAG,EAAE;gBACtB,SAAS,GAAG,IAAI,CAAC;gBACjB,QAAQ,GAAG,IAAI,CAAC;gBAChB,MAAM,GAAG,GAA0B,IAAI,KAAK,CAC3C,sDAAsD,SAAS,IAAI,CACnE,CAAC;gBACF,GAAG,CAAC,IAAI,GAAG,UAAU,CAAC;gBACtB,OAAO,CAAC,GAAG,CAAC,CAAC;YACd,CAAC,CAAC;YAEF,MAAM,aAAa,GAAG,CAAC,GAA0B,EAAE,EAAE;gBACpD,IAAI,QAAQ;oBAAE,OAAO;gBACrB,IAAI,SAAS,KAAK,IAAI,EAAE;oBACvB,YAAY,CAAC,SAAS,CAAC,CAAC;oBACxB,SAAS,GAAG,IAAI,CAAC;iBACjB;gBACD,OAAO,CAAC,GAAG,CAAC,CAAC;YACd,CAAC,CAAC;YAEF,MAAM,QAAQ,GAAG,CAAC,MAA2B,EAAE,EAAE;gBAChD,IAAI,QAAQ;oBAAE,OAAO;gBACrB,IAAI,SAAS,IAAI,IAAI,EAAE;oBACtB,YAAY,CAAC,SAAS,CAAC,CAAC;oBACxB,SAAS,GAAG,IAAI,CAAC;iBACjB;gBAED,IAAI,OAAO,CAAC,MAAM,CAAC,EAAE;oBACpB,oDAAoD;oBACpD,wDAAwD;oBACxD,eAAe;oBACf,KAAK,CACJ,6CAA6C,EAC7C,MAAM,CAAC,WAAW,CAAC,IAAI,CACvB,CAAC;oBACD,MAA4B,CAAC,UAAU,CAAC,GAAG,EAAE,IAAI,CAAC,CAAC;oBACpD,OAAO;iBACP;gBAED,IAAI,MAAM,EAAE;oBACX,MAAM,CAAC,IAAI,CAAC,MAAM,EAAE,GAAG,EAAE;wBACxB,IAAI,CAAC,UAAU,CAAC,MAAoB,EAAE,IAAI,CAAC,CAAC;oBAC7C,CAAC,CAAC,CAAC;oBACH,GAAG,CAAC,QAAQ,CAAC,MAAoB,CAAC,CAAC;oBACnC,OAAO;iBACP;gBAED,MAAM,GAAG,GAAG,IAAI,KAAK,CACpB,qDAAqD,GAAG,CAAC,MAAM,IAAI,GAAG,CAAC,IAAI,IAAI,CAC/E,CAAC;gBACF,OAAO,CAAC,GAAG,CAAC,CAAC;YACd,CAAC,CAAC;YAEF,IAAI,OAAO,IAAI,CAAC,QAAQ,KAAK,UAAU,EAAE;gBACxC,OAAO,CAAC,IAAI,KAAK,CAAC,2BAA2B,CAAC,CAAC,CAAC;gBAChD,OAAO;aACP;YAED,IAAI,CAAC,IAAI,CAAC,mBAAmB,EAAE;gBAC9B,IAAI,IAAI,CAAC,QAAQ,CAAC,MAAM,IAAI,CAAC,EAAE;oBAC9B,KAAK,CAAC,gDAAgD,CAAC,CAAC;oBACxD,IAAI,CAAC,mBAAmB,GAAG,mBAAS,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC;iBACpD;qBAAM;oBACN,IAAI,CAAC,mBAAmB,GAAG,IAAI,CAAC,QAAQ,CAAC;iBACzC;aACD;YAED,IAAI,OAAO,SAAS,KAAK,QAAQ,IAAI,SAAS,GAAG,CAAC,EAAE;gBACnD,SAAS,GAAG,UAAU,CAAC,SAAS,EAAE,SAAS,CAAC,CAAC;aAC7C;YAED,IAAI,MAAM,IAAI,IAAI,IAAI,OA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\ No newline at end of file
diff --git a/backend/node_modules/agent-base/dist/src/promisify.d.ts b/backend/node_modules/agent-base/dist/src/promisify.d.ts
new file mode 100644
index 0000000..0268869
--- /dev/null
+++ b/backend/node_modules/agent-base/dist/src/promisify.d.ts
@@ -0,0 +1,4 @@
+import { ClientRequest, RequestOptions, AgentCallbackCallback, AgentCallbackPromise } from './index';
+declare type LegacyCallback = (req: ClientRequest, opts: RequestOptions, fn: AgentCallbackCallback) => void;
+export default function promisify(fn: LegacyCallback): AgentCallbackPromise;
+export {};
diff --git a/backend/node_modules/agent-base/dist/src/promisify.js b/backend/node_modules/agent-base/dist/src/promisify.js
new file mode 100644
index 0000000..b2f6132
--- /dev/null
+++ b/backend/node_modules/agent-base/dist/src/promisify.js
@@ -0,0 +1,18 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+function promisify(fn) {
+ return function (req, opts) {
+ return new Promise((resolve, reject) => {
+ fn.call(this, req, opts, (err, rtn) => {
+ if (err) {
+ reject(err);
+ }
+ else {
+ resolve(rtn);
+ }
+ });
+ });
+ };
+}
+exports.default = promisify;
+//# sourceMappingURL=promisify.js.map
\ No newline at end of file
diff --git a/backend/node_modules/agent-base/dist/src/promisify.js.map b/backend/node_modules/agent-base/dist/src/promisify.js.map
new file mode 100644
index 0000000..4bff9bf
--- /dev/null
+++ b/backend/node_modules/agent-base/dist/src/promisify.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"promisify.js","sourceRoot":"","sources":["../../src/promisify.ts"],"names":[],"mappings":";;AAeA,SAAwB,SAAS,CAAC,EAAkB;IACnD,OAAO,UAAsB,GAAkB,EAAE,IAAoB;QACpE,OAAO,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE;YACtC,EAAE,CAAC,IAAI,CACN,IAAI,EACJ,GAAG,EACH,IAAI,EACJ,CAAC,GAA6B,EAAE,GAAyB,EAAE,EAAE;gBAC5D,IAAI,GAAG,EAAE;oBACR,MAAM,CAAC,GAAG,CAAC,CAAC;iBACZ;qBAAM;oBACN,OAAO,CAAC,GAAG,CAAC,CAAC;iBACb;YACF,CAAC,CACD,CAAC;QACH,CAAC,CAAC,CAAC;IACJ,CAAC,CAAC;AACH,CAAC;AAjBD,4BAiBC"}
\ No newline at end of file
diff --git a/backend/node_modules/agent-base/node_modules/debug/LICENSE b/backend/node_modules/agent-base/node_modules/debug/LICENSE
new file mode 100644
index 0000000..1a9820e
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/debug/LICENSE
@@ -0,0 +1,20 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+and associated documentation files (the 'Software'), to deal in the Software without restriction,
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/agent-base/node_modules/debug/README.md b/backend/node_modules/agent-base/node_modules/debug/README.md
new file mode 100644
index 0000000..5ea4cd2
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/debug/README.md
@@ -0,0 +1,478 @@
+# debug
+[](https://travis-ci.org/debug-js/debug) [](https://coveralls.io/github/debug-js/debug?branch=master) [](https://visionmedia-community-slackin.now.sh/) [](#backers)
+[](#sponsors)
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+A tiny JavaScript debugging utility modelled after Node.js core's debugging
+technique. Works in Node.js and web browsers.
+
+## Installation
+
+```bash
+$ npm install debug
+```
+
+## Usage
+
+`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
+
+Example [_app.js_](./examples/node/app.js):
+
+```js
+var debug = require('debug')('http')
+ , http = require('http')
+ , name = 'My App';
+
+// fake app
+
+debug('booting %o', name);
+
+http.createServer(function(req, res){
+ debug(req.method + ' ' + req.url);
+ res.end('hello\n');
+}).listen(3000, function(){
+ debug('listening');
+});
+
+// fake worker of some kind
+
+require('./worker');
+```
+
+Example [_worker.js_](./examples/node/worker.js):
+
+```js
+var a = require('debug')('worker:a')
+ , b = require('debug')('worker:b');
+
+function work() {
+ a('doing lots of uninteresting work');
+ setTimeout(work, Math.random() * 1000);
+}
+
+work();
+
+function workb() {
+ b('doing some work');
+ setTimeout(workb, Math.random() * 2000);
+}
+
+workb();
+```
+
+The `DEBUG` environment variable is then used to enable these based on space or
+comma-delimited names.
+
+Here are some examples:
+
+<img width="647" alt="screen shot 2017-08-08 at 12 53 04 pm" src="https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 38 pm" src="https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 25 pm" src="https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png">
+
+#### Windows command prompt notes
+
+##### CMD
+
+On Windows the environment variable is set using the `set` command.
+
+```cmd
+set DEBUG=*,-not_this
+```
+
+Example:
+
+```cmd
+set DEBUG=* & node app.js
+```
+
+##### PowerShell (VS Code default)
+
+PowerShell uses different syntax to set environment variables.
+
+```cmd
+$env:DEBUG = "*,-not_this"
+```
+
+Example:
+
+```cmd
+$env:DEBUG='app';node app.js
+```
+
+Then, run the program to be debugged as usual.
+
+npm script example:
+```js
+ "windowsDebug": "@powershell -Command $env:DEBUG='*';node app.js",
+```
+
+## Namespace Colors
+
+Every debug instance has a color generated for it based on its namespace name.
+This helps when visually parsing the debug output to identify which debug instance
+a debug line belongs to.
+
+#### Node.js
+
+In Node.js, colors are enabled when stderr is a TTY. You also _should_ install
+the [`supports-color`](https://npmjs.org/supports-color) module alongside debug,
+otherwise debug will only use a small handful of basic colors.
+
+<img width="521" src="https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png">
+
+#### Web Browser
+
+Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
+option. These are WebKit web inspectors, Firefox ([since version
+31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
+and the Firebug plugin for Firefox (any version).
+
+<img width="524" src="https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png">
+
+
+## Millisecond diff
+
+When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+When stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png">
+
+
+## Conventions
+
+If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser". If you append a "*" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable. You can then use it for normal output as well as debug output.
+
+## Wildcards
+
+The `*` character may be used as a wildcard. Suppose for example your library has
+debuggers named "connect:bodyParser", "connect:compress", "connect:session",
+instead of listing all three with
+`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do
+`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
+
+You can also exclude specific debuggers by prefixing them with a "-" character.
+For example, `DEBUG=*,-connect:*` would include all debuggers except those
+starting with "connect:".
+
+## Environment Variables
+
+When running through Node.js, you can set a few environment variables that will
+change the behavior of the debug logging:
+
+| Name | Purpose |
+|-----------|-------------------------------------------------|
+| `DEBUG` | Enables/disables specific debugging namespaces. |
+| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY). |
+| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
+| `DEBUG_DEPTH` | Object inspection depth. |
+| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
+
+
+__Note:__ The environment variables beginning with `DEBUG_` end up being
+converted into an Options object that gets used with `%o`/`%O` formatters.
+See the Node.js documentation for
+[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
+for the complete list.
+
+## Formatters
+
+Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.
+Below are the officially supported formatters:
+
+| Formatter | Representation |
+|-----------|----------------|
+| `%O` | Pretty-print an Object on multiple lines. |
+| `%o` | Pretty-print an Object all on a single line. |
+| `%s` | String. |
+| `%d` | Number (both integer and float). |
+| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
+| `%%` | Single percent sign ('%'). This does not consume an argument. |
+
+
+### Custom formatters
+
+You can add custom formatters by extending the `debug.formatters` object.
+For example, if you wanted to add support for rendering a Buffer as hex with
+`%h`, you could do something like:
+
+```js
+const createDebug = require('debug')
+createDebug.formatters.h = (v) => {
+ return v.toString('hex')
+}
+
+// …elsewhere
+const debug = createDebug('foo')
+debug('this is hex: %h', new Buffer('hello world'))
+// foo this is hex: 68656c6c6f20776f726c6421 +0ms
+```
+
+
+## Browser Support
+
+You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
+or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
+if you don't want to build it yourself.
+
+Debug's enable state is currently persisted by `localStorage`.
+Consider the situation shown below where you have `worker:a` and `worker:b`,
+and wish to debug both. You can enable this using `localStorage.debug`:
+
+```js
+localStorage.debug = 'worker:*'
+```
+
+And then refresh the page.
+
+```js
+a = debug('worker:a');
+b = debug('worker:b');
+
+setInterval(function(){
+ a('doing some work');
+}, 1000);
+
+setInterval(function(){
+ b('doing some work');
+}, 1200);
+```
+
+
+## Output streams
+
+ By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
+
+Example [_stdout.js_](./examples/node/stdout.js):
+
+```js
+var debug = require('debug');
+var error = debug('app:error');
+
+// by default stderr is used
+error('goes to stderr!');
+
+var log = debug('app:log');
+// set this namespace to log via console.log
+log.log = console.log.bind(console); // don't forget to bind to console!
+log('goes to stdout');
+error('still goes to stderr!');
+
+// set all output to go via console.info
+// overrides all per-namespace log settings
+debug.log = console.info.bind(console);
+error('now goes to stdout via console.info');
+log('still goes to stdout, but via console.info now');
+```
+
+## Extend
+You can simply extend debugger
+```js
+const log = require('debug')('auth');
+
+//creates new debug instance with extended namespace
+const logSign = log.extend('sign');
+const logLogin = log.extend('login');
+
+log('hello'); // auth hello
+logSign('hello'); //auth:sign hello
+logLogin('hello'); //auth:login hello
+```
+
+## Set dynamically
+
+You can also enable debug dynamically by calling the `enable()` method :
+
+```js
+let debug = require('debug');
+
+console.log(1, debug.enabled('test'));
+
+debug.enable('test');
+console.log(2, debug.enabled('test'));
+
+debug.disable();
+console.log(3, debug.enabled('test'));
+
+```
+
+print :
+```
+1 false
+2 true
+3 false
+```
+
+Usage :
+`enable(namespaces)`
+`namespaces` can include modes separated by a colon and wildcards.
+
+Note that calling `enable()` completely overrides previously set DEBUG variable :
+
+```
+$ DEBUG=foo node -e 'var dbg = require("debug"); dbg.enable("bar"); console.log(dbg.enabled("foo"))'
+=> false
+```
+
+`disable()`
+
+Will disable all namespaces. The functions returns the namespaces currently
+enabled (and skipped). This can be useful if you want to disable debugging
+temporarily without knowing what was enabled to begin with.
+
+For example:
+
+```js
+let debug = require('debug');
+debug.enable('foo:*,-foo:bar');
+let namespaces = debug.disable();
+debug.enable(namespaces);
+```
+
+Note: There is no guarantee that the string will be identical to the initial
+enable string, but semantically they will be identical.
+
+## Checking whether a debug target is enabled
+
+After you've created a debug instance, you can determine whether or not it is
+enabled by checking the `enabled` property:
+
+```javascript
+const debug = require('debug')('http');
+
+if (debug.enabled) {
+ // do stuff...
+}
+```
+
+You can also manually toggle this property to force the debug instance to be
+enabled or disabled.
+
+## Usage in child processes
+
+Due to the way `debug` detects if the output is a TTY or not, colors are not shown in child processes when `stderr` is piped. A solution is to pass the `DEBUG_COLORS=1` environment variable to the child process.
+For example:
+
+```javascript
+worker = fork(WORKER_WRAP_PATH, [workerPath], {
+ stdio: [
+ /* stdin: */ 0,
+ /* stdout: */ 'pipe',
+ /* stderr: */ 'pipe',
+ 'ipc',
+ ],
+ env: Object.assign({}, process.env, {
+ DEBUG_COLORS: 1 // without this settings, colors won't be shown
+ }),
+});
+
+worker.stderr.pipe(process.stderr, { end: false });
+```
+
+
+## Authors
+
+ - TJ Holowaychuk
+ - Nathan Rajlich
+ - Andrew Rhyne
+ - Josh Junon
+
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
+
+<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/1/website" target="_blank"><img src="https://opencollective.com/debug/backer/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/2/website" target="_blank"><img src="https://opencollective.com/debug/backer/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/3/website" target="_blank"><img src="https://opencollective.com/debug/backer/3/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/4/website" target="_blank"><img src="https://opencollective.com/debug/backer/4/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/5/website" target="_blank"><img src="https://opencollective.com/debug/backer/5/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/6/website" target="_blank"><img src="https://opencollective.com/debug/backer/6/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/7/website" target="_blank"><img src="https://opencollective.com/debug/backer/7/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/8/website" target="_blank"><img src="https://opencollective.com/debug/backer/8/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/9/website" target="_blank"><img src="https://opencollective.com/debug/backer/9/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/10/website" target="_blank"><img src="https://opencollective.com/debug/backer/10/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/11/website" target="_blank"><img src="https://opencollective.com/debug/backer/11/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/12/website" target="_blank"><img src="https://opencollective.com/debug/backer/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/13/website" target="_blank"><img src="https://opencollective.com/debug/backer/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/14/website" target="_blank"><img src="https://opencollective.com/debug/backer/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/15/website" target="_blank"><img src="https://opencollective.com/debug/backer/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/16/website" target="_blank"><img src="https://opencollective.com/debug/backer/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/17/website" target="_blank"><img src="https://opencollective.com/debug/backer/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/18/website" target="_blank"><img src="https://opencollective.com/debug/backer/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/19/website" target="_blank"><img src="https://opencollective.com/debug/backer/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/20/website" target="_blank"><img src="https://opencollective.com/debug/backer/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/21/website" target="_blank"><img src="https://opencollective.com/debug/backer/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/22/website" target="_blank"><img src="https://opencollective.com/debug/backer/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/23/website" target="_blank"><img src="https://opencollective.com/debug/backer/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/24/website" target="_blank"><img src="https://opencollective.com/debug/backer/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/25/website" target="_blank"><img src="https://opencollective.com/debug/backer/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/26/website" target="_blank"><img src="https://opencollective.com/debug/backer/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/27/website" target="_blank"><img src="https://opencollective.com/debug/backer/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/28/website" target="_blank"><img src="https://opencollective.com/debug/backer/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/29/website" target="_blank"><img src="https://opencollective.com/debug/backer/29/avatar.svg"></a>
+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
+
+<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/1/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/2/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/3/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/4/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/5/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/6/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/7/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/8/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/9/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/10/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/11/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/12/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/13/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/14/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/15/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/16/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/17/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/18/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/19/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/20/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/21/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/22/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/23/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/24/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/25/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/26/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/27/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/28/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/29/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/29/avatar.svg"></a>
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/agent-base/node_modules/debug/package.json b/backend/node_modules/agent-base/node_modules/debug/package.json
new file mode 100644
index 0000000..360d847
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/debug/package.json
@@ -0,0 +1,101 @@
+{
+ "_from": "debug@4",
+ "_id": "debug@4.3.3",
+ "_inBundle": false,
+ "_integrity": "sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==",
+ "_location": "/agent-base/debug",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "debug@4",
+ "name": "debug",
+ "escapedName": "debug",
+ "rawSpec": "4",
+ "saveSpec": null,
+ "fetchSpec": "4"
+ },
+ "_requiredBy": [
+ "/agent-base"
+ ],
+ "_resolved": "https://registry.npmjs.org/debug/-/debug-4.3.3.tgz",
+ "_shasum": "04266e0b70a98d4462e6e288e38259213332b664",
+ "_spec": "debug@4",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/agent-base",
+ "author": {
+ "name": "Josh Junon",
+ "email": "josh.junon@protonmail.com"
+ },
+ "browser": "./src/browser.js",
+ "bugs": {
+ "url": "https://github.com/debug-js/debug/issues"
+ },
+ "bundleDependencies": false,
+ "contributors": [
+ {
+ "name": "TJ Holowaychuk",
+ "email": "tj@vision-media.ca"
+ },
+ {
+ "name": "Nathan Rajlich",
+ "email": "nathan@tootallnate.net",
+ "url": "http://n8.io"
+ },
+ {
+ "name": "Andrew Rhyne",
+ "email": "rhyneandrew@gmail.com"
+ }
+ ],
+ "dependencies": {
+ "ms": "2.1.2"
+ },
+ "deprecated": false,
+ "description": "Lightweight debugging utility for Node.js and the browser",
+ "devDependencies": {
+ "brfs": "^2.0.1",
+ "browserify": "^16.2.3",
+ "coveralls": "^3.0.2",
+ "istanbul": "^0.4.5",
+ "karma": "^3.1.4",
+ "karma-browserify": "^6.0.0",
+ "karma-chrome-launcher": "^2.2.0",
+ "karma-mocha": "^1.3.0",
+ "mocha": "^5.2.0",
+ "mocha-lcov-reporter": "^1.2.0",
+ "xo": "^0.23.0"
+ },
+ "engines": {
+ "node": ">=6.0"
+ },
+ "files": [
+ "src",
+ "LICENSE",
+ "README.md"
+ ],
+ "homepage": "https://github.com/debug-js/debug#readme",
+ "keywords": [
+ "debug",
+ "log",
+ "debugger"
+ ],
+ "license": "MIT",
+ "main": "./src/index.js",
+ "name": "debug",
+ "peerDependenciesMeta": {
+ "supports-color": {
+ "optional": true
+ }
+ },
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/debug-js/debug.git"
+ },
+ "scripts": {
+ "lint": "xo",
+ "test": "npm run test:node && npm run test:browser && npm run lint",
+ "test:browser": "karma start --single-run",
+ "test:coverage": "cat ./coverage/lcov.info | coveralls",
+ "test:node": "istanbul cover _mocha -- test.js"
+ },
+ "version": "4.3.3"
+}
diff --git a/backend/node_modules/agent-base/node_modules/debug/src/browser.js b/backend/node_modules/agent-base/node_modules/debug/src/browser.js
new file mode 100644
index 0000000..cd0fc35
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/debug/src/browser.js
@@ -0,0 +1,269 @@
+/* eslint-env browser */
+
+/**
+ * This is the web browser implementation of `debug()`.
+ */
+
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = localstorage();
+exports.destroy = (() => {
+ let warned = false;
+
+ return () => {
+ if (!warned) {
+ warned = true;
+ console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+ }
+ };
+})();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+ '#0000CC',
+ '#0000FF',
+ '#0033CC',
+ '#0033FF',
+ '#0066CC',
+ '#0066FF',
+ '#0099CC',
+ '#0099FF',
+ '#00CC00',
+ '#00CC33',
+ '#00CC66',
+ '#00CC99',
+ '#00CCCC',
+ '#00CCFF',
+ '#3300CC',
+ '#3300FF',
+ '#3333CC',
+ '#3333FF',
+ '#3366CC',
+ '#3366FF',
+ '#3399CC',
+ '#3399FF',
+ '#33CC00',
+ '#33CC33',
+ '#33CC66',
+ '#33CC99',
+ '#33CCCC',
+ '#33CCFF',
+ '#6600CC',
+ '#6600FF',
+ '#6633CC',
+ '#6633FF',
+ '#66CC00',
+ '#66CC33',
+ '#9900CC',
+ '#9900FF',
+ '#9933CC',
+ '#9933FF',
+ '#99CC00',
+ '#99CC33',
+ '#CC0000',
+ '#CC0033',
+ '#CC0066',
+ '#CC0099',
+ '#CC00CC',
+ '#CC00FF',
+ '#CC3300',
+ '#CC3333',
+ '#CC3366',
+ '#CC3399',
+ '#CC33CC',
+ '#CC33FF',
+ '#CC6600',
+ '#CC6633',
+ '#CC9900',
+ '#CC9933',
+ '#CCCC00',
+ '#CCCC33',
+ '#FF0000',
+ '#FF0033',
+ '#FF0066',
+ '#FF0099',
+ '#FF00CC',
+ '#FF00FF',
+ '#FF3300',
+ '#FF3333',
+ '#FF3366',
+ '#FF3399',
+ '#FF33CC',
+ '#FF33FF',
+ '#FF6600',
+ '#FF6633',
+ '#FF9900',
+ '#FF9933',
+ '#FFCC00',
+ '#FFCC33'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+// eslint-disable-next-line complexity
+function useColors() {
+ // NB: In an Electron preload script, document will be defined but not fully
+ // initialized. Since we know we're in Chrome, we'll just detect this case
+ // explicitly
+ if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+ return true;
+ }
+
+ // Internet Explorer and Edge do not support colors.
+ if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+ return false;
+ }
+
+ // Is webkit? http://stackoverflow.com/a/16459606/376773
+ // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+ return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+ // Is firebug? http://stackoverflow.com/a/398120/376773
+ (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+ // Is firefox >= v31?
+ // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+ (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
+ // Double check webkit in userAgent just in case we are in a worker
+ (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+ args[0] = (this.useColors ? '%c' : '') +
+ this.namespace +
+ (this.useColors ? ' %c' : ' ') +
+ args[0] +
+ (this.useColors ? '%c ' : ' ') +
+ '+' + module.exports.humanize(this.diff);
+
+ if (!this.useColors) {
+ return;
+ }
+
+ const c = 'color: ' + this.color;
+ args.splice(1, 0, c, 'color: inherit');
+
+ // The final "%c" is somewhat tricky, because there could be other
+ // arguments passed either before or after the %c, so we need to
+ // figure out the correct index to insert the CSS into
+ let index = 0;
+ let lastC = 0;
+ args[0].replace(/%[a-zA-Z%]/g, match => {
+ if (match === '%%') {
+ return;
+ }
+ index++;
+ if (match === '%c') {
+ // We only are interested in the *last* %c
+ // (the user may have provided their own)
+ lastC = index;
+ }
+ });
+
+ args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.debug()` when available.
+ * No-op when `console.debug` is not a "function".
+ * If `console.debug` is not available, falls back
+ * to `console.log`.
+ *
+ * @api public
+ */
+exports.log = console.debug || console.log || (() => {});
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+ try {
+ if (namespaces) {
+ exports.storage.setItem('debug', namespaces);
+ } else {
+ exports.storage.removeItem('debug');
+ }
+ } catch (error) {
+ // Swallow
+ // XXX (@Qix-) should we be logging these?
+ }
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+function load() {
+ let r;
+ try {
+ r = exports.storage.getItem('debug');
+ } catch (error) {
+ // Swallow
+ // XXX (@Qix-) should we be logging these?
+ }
+
+ // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+ if (!r && typeof process !== 'undefined' && 'env' in process) {
+ r = process.env.DEBUG;
+ }
+
+ return r;
+}
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+ try {
+ // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+ // The Browser also has localStorage in the global context.
+ return localStorage;
+ } catch (error) {
+ // Swallow
+ // XXX (@Qix-) should we be logging these?
+ }
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+formatters.j = function (v) {
+ try {
+ return JSON.stringify(v);
+ } catch (error) {
+ return '[UnexpectedJSONParseError]: ' + error.message;
+ }
+};
diff --git a/backend/node_modules/agent-base/node_modules/debug/src/common.js b/backend/node_modules/agent-base/node_modules/debug/src/common.js
new file mode 100644
index 0000000..6d571d2
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/debug/src/common.js
@@ -0,0 +1,274 @@
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ */
+
+function setup(env) {
+ createDebug.debug = createDebug;
+ createDebug.default = createDebug;
+ createDebug.coerce = coerce;
+ createDebug.disable = disable;
+ createDebug.enable = enable;
+ createDebug.enabled = enabled;
+ createDebug.humanize = require('ms');
+ createDebug.destroy = destroy;
+
+ Object.keys(env).forEach(key => {
+ createDebug[key] = env[key];
+ });
+
+ /**
+ * The currently active debug mode names, and names to skip.
+ */
+
+ createDebug.names = [];
+ createDebug.skips = [];
+
+ /**
+ * Map of special "%n" handling functions, for the debug "format" argument.
+ *
+ * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+ */
+ createDebug.formatters = {};
+
+ /**
+ * Selects a color for a debug namespace
+ * @param {String} namespace The namespace string for the debug instance to be colored
+ * @return {Number|String} An ANSI color code for the given namespace
+ * @api private
+ */
+ function selectColor(namespace) {
+ let hash = 0;
+
+ for (let i = 0; i < namespace.length; i++) {
+ hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
+ hash |= 0; // Convert to 32bit integer
+ }
+
+ return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+ }
+ createDebug.selectColor = selectColor;
+
+ /**
+ * Create a debugger with the given `namespace`.
+ *
+ * @param {String} namespace
+ * @return {Function}
+ * @api public
+ */
+ function createDebug(namespace) {
+ let prevTime;
+ let enableOverride = null;
+ let namespacesCache;
+ let enabledCache;
+
+ function debug(...args) {
+ // Disabled?
+ if (!debug.enabled) {
+ return;
+ }
+
+ const self = debug;
+
+ // Set `diff` timestamp
+ const curr = Number(new Date());
+ const ms = curr - (prevTime || curr);
+ self.diff = ms;
+ self.prev = prevTime;
+ self.curr = curr;
+ prevTime = curr;
+
+ args[0] = createDebug.coerce(args[0]);
+
+ if (typeof args[0] !== 'string') {
+ // Anything else let's inspect with %O
+ args.unshift('%O');
+ }
+
+ // Apply any `formatters` transformations
+ let index = 0;
+ args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
+ // If we encounter an escaped % then don't increase the array index
+ if (match === '%%') {
+ return '%';
+ }
+ index++;
+ const formatter = createDebug.formatters[format];
+ if (typeof formatter === 'function') {
+ const val = args[index];
+ match = formatter.call(self, val);
+
+ // Now we need to remove `args[index]` since it's inlined in the `format`
+ args.splice(index, 1);
+ index--;
+ }
+ return match;
+ });
+
+ // Apply env-specific formatting (colors, etc.)
+ createDebug.formatArgs.call(self, args);
+
+ const logFn = self.log || createDebug.log;
+ logFn.apply(self, args);
+ }
+
+ debug.namespace = namespace;
+ debug.useColors = createDebug.useColors();
+ debug.color = createDebug.selectColor(namespace);
+ debug.extend = extend;
+ debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.
+
+ Object.defineProperty(debug, 'enabled', {
+ enumerable: true,
+ configurable: false,
+ get: () => {
+ if (enableOverride !== null) {
+ return enableOverride;
+ }
+ if (namespacesCache !== createDebug.namespaces) {
+ namespacesCache = createDebug.namespaces;
+ enabledCache = createDebug.enabled(namespace);
+ }
+
+ return enabledCache;
+ },
+ set: v => {
+ enableOverride = v;
+ }
+ });
+
+ // Env-specific initialization logic for debug instances
+ if (typeof createDebug.init === 'function') {
+ createDebug.init(debug);
+ }
+
+ return debug;
+ }
+
+ function extend(namespace, delimiter) {
+ const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+ newDebug.log = this.log;
+ return newDebug;
+ }
+
+ /**
+ * Enables a debug mode by namespaces. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} namespaces
+ * @api public
+ */
+ function enable(namespaces) {
+ createDebug.save(namespaces);
+ createDebug.namespaces = namespaces;
+
+ createDebug.names = [];
+ createDebug.skips = [];
+
+ let i;
+ const split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+ const len = split.length;
+
+ for (i = 0; i < len; i++) {
+ if (!split[i]) {
+ // ignore empty strings
+ continue;
+ }
+
+ namespaces = split[i].replace(/\*/g, '.*?');
+
+ if (namespaces[0] === '-') {
+ createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+ } else {
+ createDebug.names.push(new RegExp('^' + namespaces + '$'));
+ }
+ }
+ }
+
+ /**
+ * Disable debug output.
+ *
+ * @return {String} namespaces
+ * @api public
+ */
+ function disable() {
+ const namespaces = [
+ ...createDebug.names.map(toNamespace),
+ ...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace)
+ ].join(',');
+ createDebug.enable('');
+ return namespaces;
+ }
+
+ /**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+ function enabled(name) {
+ if (name[name.length - 1] === '*') {
+ return true;
+ }
+
+ let i;
+ let len;
+
+ for (i = 0, len = createDebug.skips.length; i < len; i++) {
+ if (createDebug.skips[i].test(name)) {
+ return false;
+ }
+ }
+
+ for (i = 0, len = createDebug.names.length; i < len; i++) {
+ if (createDebug.names[i].test(name)) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Convert regexp to namespace
+ *
+ * @param {RegExp} regxep
+ * @return {String} namespace
+ * @api private
+ */
+ function toNamespace(regexp) {
+ return regexp.toString()
+ .substring(2, regexp.toString().length - 2)
+ .replace(/\.\*\?$/, '*');
+ }
+
+ /**
+ * Coerce `val`.
+ *
+ * @param {Mixed} val
+ * @return {Mixed}
+ * @api private
+ */
+ function coerce(val) {
+ if (val instanceof Error) {
+ return val.stack || val.message;
+ }
+ return val;
+ }
+
+ /**
+ * XXX DO NOT USE. This is a temporary stub function.
+ * XXX It WILL be removed in the next major release.
+ */
+ function destroy() {
+ console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+ }
+
+ createDebug.enable(createDebug.load());
+
+ return createDebug;
+}
+
+module.exports = setup;
diff --git a/backend/node_modules/agent-base/node_modules/debug/src/index.js b/backend/node_modules/agent-base/node_modules/debug/src/index.js
new file mode 100644
index 0000000..bf4c57f
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/debug/src/index.js
@@ -0,0 +1,10 @@
+/**
+ * Detect Electron renderer / nwjs process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {
+ module.exports = require('./browser.js');
+} else {
+ module.exports = require('./node.js');
+}
diff --git a/backend/node_modules/agent-base/node_modules/debug/src/node.js b/backend/node_modules/agent-base/node_modules/debug/src/node.js
new file mode 100644
index 0000000..79bc085
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/debug/src/node.js
@@ -0,0 +1,263 @@
+/**
+ * Module dependencies.
+ */
+
+const tty = require('tty');
+const util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ */
+
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.destroy = util.deprecate(
+ () => {},
+ 'Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'
+);
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+try {
+ // Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
+ // eslint-disable-next-line import/no-extraneous-dependencies
+ const supportsColor = require('supports-color');
+
+ if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
+ exports.colors = [
+ 20,
+ 21,
+ 26,
+ 27,
+ 32,
+ 33,
+ 38,
+ 39,
+ 40,
+ 41,
+ 42,
+ 43,
+ 44,
+ 45,
+ 56,
+ 57,
+ 62,
+ 63,
+ 68,
+ 69,
+ 74,
+ 75,
+ 76,
+ 77,
+ 78,
+ 79,
+ 80,
+ 81,
+ 92,
+ 93,
+ 98,
+ 99,
+ 112,
+ 113,
+ 128,
+ 129,
+ 134,
+ 135,
+ 148,
+ 149,
+ 160,
+ 161,
+ 162,
+ 163,
+ 164,
+ 165,
+ 166,
+ 167,
+ 168,
+ 169,
+ 170,
+ 171,
+ 172,
+ 173,
+ 178,
+ 179,
+ 184,
+ 185,
+ 196,
+ 197,
+ 198,
+ 199,
+ 200,
+ 201,
+ 202,
+ 203,
+ 204,
+ 205,
+ 206,
+ 207,
+ 208,
+ 209,
+ 214,
+ 215,
+ 220,
+ 221
+ ];
+ }
+} catch (error) {
+ // Swallow - we only care if `supports-color` is available; it doesn't have to be.
+}
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ * $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(key => {
+ return /^debug_/i.test(key);
+}).reduce((obj, key) => {
+ // Camel-case
+ const prop = key
+ .substring(6)
+ .toLowerCase()
+ .replace(/_([a-z])/g, (_, k) => {
+ return k.toUpperCase();
+ });
+
+ // Coerce string value into JS value
+ let val = process.env[key];
+ if (/^(yes|on|true|enabled)$/i.test(val)) {
+ val = true;
+ } else if (/^(no|off|false|disabled)$/i.test(val)) {
+ val = false;
+ } else if (val === 'null') {
+ val = null;
+ } else {
+ val = Number(val);
+ }
+
+ obj[prop] = val;
+ return obj;
+}, {});
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+ return 'colors' in exports.inspectOpts ?
+ Boolean(exports.inspectOpts.colors) :
+ tty.isatty(process.stderr.fd);
+}
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+ const {namespace: name, useColors} = this;
+
+ if (useColors) {
+ const c = this.color;
+ const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
+ const prefix = ` ${colorCode};1m${name} \u001B[0m`;
+
+ args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+ args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
+ } else {
+ args[0] = getDate() + name + ' ' + args[0];
+ }
+}
+
+function getDate() {
+ if (exports.inspectOpts.hideDate) {
+ return '';
+ }
+ return new Date().toISOString() + ' ';
+}
+
+/**
+ * Invokes `util.format()` with the specified arguments and writes to stderr.
+ */
+
+function log(...args) {
+ return process.stderr.write(util.format(...args) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+ if (namespaces) {
+ process.env.DEBUG = namespaces;
+ } else {
+ // If you set a process.env field to null or undefined, it gets cast to the
+ // string 'null' or 'undefined'. Just delete instead.
+ delete process.env.DEBUG;
+ }
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+ return process.env.DEBUG;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init(debug) {
+ debug.inspectOpts = {};
+
+ const keys = Object.keys(exports.inspectOpts);
+ for (let i = 0; i < keys.length; i++) {
+ debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+ }
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+formatters.o = function (v) {
+ this.inspectOpts.colors = this.useColors;
+ return util.inspect(v, this.inspectOpts)
+ .split('\n')
+ .map(str => str.trim())
+ .join(' ');
+};
+
+/**
+ * Map %O to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+formatters.O = function (v) {
+ this.inspectOpts.colors = this.useColors;
+ return util.inspect(v, this.inspectOpts);
+};
diff --git a/backend/node_modules/agent-base/node_modules/ms/index.js b/backend/node_modules/agent-base/node_modules/ms/index.js
new file mode 100644
index 0000000..c4498bc
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/ms/index.js
@@ -0,0 +1,162 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ * - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function(val, options) {
+ options = options || {};
+ var type = typeof val;
+ if (type === 'string' && val.length > 0) {
+ return parse(val);
+ } else if (type === 'number' && isFinite(val)) {
+ return options.long ? fmtLong(val) : fmtShort(val);
+ }
+ throw new Error(
+ 'val is not a non-empty string or a valid number. val=' +
+ JSON.stringify(val)
+ );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+ str = String(str);
+ if (str.length > 100) {
+ return;
+ }
+ var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+ str
+ );
+ if (!match) {
+ return;
+ }
+ var n = parseFloat(match[1]);
+ var type = (match[2] || 'ms').toLowerCase();
+ switch (type) {
+ case 'years':
+ case 'year':
+ case 'yrs':
+ case 'yr':
+ case 'y':
+ return n * y;
+ case 'weeks':
+ case 'week':
+ case 'w':
+ return n * w;
+ case 'days':
+ case 'day':
+ case 'd':
+ return n * d;
+ case 'hours':
+ case 'hour':
+ case 'hrs':
+ case 'hr':
+ case 'h':
+ return n * h;
+ case 'minutes':
+ case 'minute':
+ case 'mins':
+ case 'min':
+ case 'm':
+ return n * m;
+ case 'seconds':
+ case 'second':
+ case 'secs':
+ case 'sec':
+ case 's':
+ return n * s;
+ case 'milliseconds':
+ case 'millisecond':
+ case 'msecs':
+ case 'msec':
+ case 'ms':
+ return n;
+ default:
+ return undefined;
+ }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+ var msAbs = Math.abs(ms);
+ if (msAbs >= d) {
+ return Math.round(ms / d) + 'd';
+ }
+ if (msAbs >= h) {
+ return Math.round(ms / h) + 'h';
+ }
+ if (msAbs >= m) {
+ return Math.round(ms / m) + 'm';
+ }
+ if (msAbs >= s) {
+ return Math.round(ms / s) + 's';
+ }
+ return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+ var msAbs = Math.abs(ms);
+ if (msAbs >= d) {
+ return plural(ms, msAbs, d, 'day');
+ }
+ if (msAbs >= h) {
+ return plural(ms, msAbs, h, 'hour');
+ }
+ if (msAbs >= m) {
+ return plural(ms, msAbs, m, 'minute');
+ }
+ if (msAbs >= s) {
+ return plural(ms, msAbs, s, 'second');
+ }
+ return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+ var isPlural = msAbs >= n * 1.5;
+ return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}
diff --git a/backend/node_modules/agent-base/node_modules/ms/license.md b/backend/node_modules/agent-base/node_modules/ms/license.md
new file mode 100644
index 0000000..69b6125
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Zeit, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/agent-base/node_modules/ms/package.json b/backend/node_modules/agent-base/node_modules/ms/package.json
new file mode 100644
index 0000000..a6b3768
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/ms/package.json
@@ -0,0 +1,69 @@
+{
+ "_from": "ms@2.1.2",
+ "_id": "ms@2.1.2",
+ "_inBundle": false,
+ "_integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+ "_location": "/agent-base/ms",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "ms@2.1.2",
+ "name": "ms",
+ "escapedName": "ms",
+ "rawSpec": "2.1.2",
+ "saveSpec": null,
+ "fetchSpec": "2.1.2"
+ },
+ "_requiredBy": [
+ "/agent-base/debug"
+ ],
+ "_resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+ "_shasum": "d09d1f357b443f493382a8eb3ccd183872ae6009",
+ "_spec": "ms@2.1.2",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/agent-base/node_modules/debug",
+ "bugs": {
+ "url": "https://github.com/zeit/ms/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Tiny millisecond conversion utility",
+ "devDependencies": {
+ "eslint": "4.12.1",
+ "expect.js": "0.3.1",
+ "husky": "0.14.3",
+ "lint-staged": "5.0.0",
+ "mocha": "4.0.1"
+ },
+ "eslintConfig": {
+ "extends": "eslint:recommended",
+ "env": {
+ "node": true,
+ "es6": true
+ }
+ },
+ "files": [
+ "index.js"
+ ],
+ "homepage": "https://github.com/zeit/ms#readme",
+ "license": "MIT",
+ "lint-staged": {
+ "*.js": [
+ "npm run lint",
+ "prettier --single-quote --write",
+ "git add"
+ ]
+ },
+ "main": "./index",
+ "name": "ms",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/zeit/ms.git"
+ },
+ "scripts": {
+ "lint": "eslint lib/* bin/*",
+ "precommit": "lint-staged",
+ "test": "mocha tests.js"
+ },
+ "version": "2.1.2"
+}
diff --git a/backend/node_modules/agent-base/node_modules/ms/readme.md b/backend/node_modules/agent-base/node_modules/ms/readme.md
new file mode 100644
index 0000000..9a1996b
--- /dev/null
+++ b/backend/node_modules/agent-base/node_modules/ms/readme.md
@@ -0,0 +1,60 @@
+# ms
+
+[](https://travis-ci.org/zeit/ms)
+[](https://spectrum.chat/zeit)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days') // 172800000
+ms('1d') // 86400000
+ms('10h') // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h') // 7200000
+ms('1m') // 60000
+ms('5s') // 5000
+ms('1y') // 31557600000
+ms('100') // 100
+ms('-3 days') // -259200000
+ms('-1h') // -3600000
+ms('-200') // -200
+```
+
+### Convert from Milliseconds
+
+```js
+ms(60000) // "1m"
+ms(2 * 60000) // "2m"
+ms(-3 * 60000) // "-3m"
+ms(ms('10 hours')) // "10h"
+```
+
+### Time Format Written-Out
+
+```js
+ms(60000, { long: true }) // "1 minute"
+ms(2 * 60000, { long: true }) // "2 minutes"
+ms(-3 * 60000, { long: true }) // "-3 minutes"
+ms(ms('10 hours'), { long: true }) // "10 hours"
+```
+
+## Features
+
+- Works both in [Node.js](https://nodejs.org) and in the browser
+- If a number is supplied to `ms`, a string with a unit is returned
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`)
+- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned
+
+## Related Packages
+
+- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time.
+
+## Caught a Bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/backend/node_modules/agent-base/package.json b/backend/node_modules/agent-base/package.json
new file mode 100644
index 0000000..26ee378
--- /dev/null
+++ b/backend/node_modules/agent-base/package.json
@@ -0,0 +1,94 @@
+{
+ "_from": "agent-base@6",
+ "_id": "agent-base@6.0.2",
+ "_inBundle": false,
+ "_integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
+ "_location": "/agent-base",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "agent-base@6",
+ "name": "agent-base",
+ "escapedName": "agent-base",
+ "rawSpec": "6",
+ "saveSpec": null,
+ "fetchSpec": "6"
+ },
+ "_requiredBy": [
+ "/https-proxy-agent"
+ ],
+ "_resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
+ "_shasum": "49fff58577cfee3f37176feab4c22e00f86d7f77",
+ "_spec": "agent-base@6",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/https-proxy-agent",
+ "author": {
+ "name": "Nathan Rajlich",
+ "email": "nathan@tootallnate.net",
+ "url": "http://n8.io/"
+ },
+ "bugs": {
+ "url": "https://github.com/TooTallNate/node-agent-base/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "debug": "4"
+ },
+ "deprecated": false,
+ "description": "Turn a function into an `http.Agent` instance",
+ "devDependencies": {
+ "@types/debug": "4",
+ "@types/mocha": "^5.2.7",
+ "@types/node": "^14.0.20",
+ "@types/semver": "^7.1.0",
+ "@types/ws": "^6.0.3",
+ "@typescript-eslint/eslint-plugin": "1.6.0",
+ "@typescript-eslint/parser": "1.1.0",
+ "async-listen": "^1.2.0",
+ "cpy-cli": "^2.0.0",
+ "eslint": "5.16.0",
+ "eslint-config-airbnb": "17.1.0",
+ "eslint-config-prettier": "4.1.0",
+ "eslint-import-resolver-typescript": "1.1.1",
+ "eslint-plugin-import": "2.16.0",
+ "eslint-plugin-jsx-a11y": "6.2.1",
+ "eslint-plugin-react": "7.12.4",
+ "mocha": "^6.2.0",
+ "rimraf": "^3.0.0",
+ "semver": "^7.1.2",
+ "typescript": "^3.5.3",
+ "ws": "^3.0.0"
+ },
+ "engines": {
+ "node": ">= 6.0.0"
+ },
+ "files": [
+ "dist/src",
+ "src"
+ ],
+ "homepage": "https://github.com/TooTallNate/node-agent-base#readme",
+ "keywords": [
+ "http",
+ "agent",
+ "base",
+ "barebones",
+ "https"
+ ],
+ "license": "MIT",
+ "main": "dist/src/index",
+ "name": "agent-base",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/TooTallNate/node-agent-base.git"
+ },
+ "scripts": {
+ "build": "tsc",
+ "postbuild": "cpy --parents src test '!**/*.ts' dist",
+ "prebuild": "rimraf dist",
+ "prepublishOnly": "npm run build",
+ "test": "mocha --reporter spec dist/test/*.js",
+ "test-lint": "eslint src --ext .js,.ts"
+ },
+ "typings": "dist/src/index",
+ "version": "6.0.2"
+}
diff --git a/backend/node_modules/agent-base/src/index.ts b/backend/node_modules/agent-base/src/index.ts
new file mode 100644
index 0000000..a47ccd4
--- /dev/null
+++ b/backend/node_modules/agent-base/src/index.ts
@@ -0,0 +1,345 @@
+import net from 'net';
+import http from 'http';
+import https from 'https';
+import { Duplex } from 'stream';
+import { EventEmitter } from 'events';
+import createDebug from 'debug';
+import promisify from './promisify';
+
+const debug = createDebug('agent-base');
+
+function isAgent(v: any): v is createAgent.AgentLike {
+ return Boolean(v) && typeof v.addRequest === 'function';
+}
+
+function isSecureEndpoint(): boolean {
+ const { stack } = new Error();
+ if (typeof stack !== 'string') return false;
+ return stack.split('\n').some(l => l.indexOf('(https.js:') !== -1 || l.indexOf('node:https:') !== -1);
+}
+
+function createAgent(opts?: createAgent.AgentOptions): createAgent.Agent;
+function createAgent(
+ callback: createAgent.AgentCallback,
+ opts?: createAgent.AgentOptions
+): createAgent.Agent;
+function createAgent(
+ callback?: createAgent.AgentCallback | createAgent.AgentOptions,
+ opts?: createAgent.AgentOptions
+) {
+ return new createAgent.Agent(callback, opts);
+}
+
+namespace createAgent {
+ export interface ClientRequest extends http.ClientRequest {
+ _last?: boolean;
+ _hadError?: boolean;
+ method: string;
+ }
+
+ export interface AgentRequestOptions {
+ host?: string;
+ path?: string;
+ // `port` on `http.RequestOptions` can be a string or undefined,
+ // but `net.TcpNetConnectOpts` expects only a number
+ port: number;
+ }
+
+ export interface HttpRequestOptions
+ extends AgentRequestOptions,
+ Omit<http.RequestOptions, keyof AgentRequestOptions> {
+ secureEndpoint: false;
+ }
+
+ export interface HttpsRequestOptions
+ extends AgentRequestOptions,
+ Omit<https.RequestOptions, keyof AgentRequestOptions> {
+ secureEndpoint: true;
+ }
+
+ export type RequestOptions = HttpRequestOptions | HttpsRequestOptions;
+
+ export type AgentLike = Pick<createAgent.Agent, 'addRequest'> | http.Agent;
+
+ export type AgentCallbackReturn = Duplex | AgentLike;
+
+ export type AgentCallbackCallback = (
+ err?: Error | null,
+ socket?: createAgent.AgentCallbackReturn
+ ) => void;
+
+ export type AgentCallbackPromise = (
+ req: createAgent.ClientRequest,
+ opts: createAgent.RequestOptions
+ ) =>
+ | createAgent.AgentCallbackReturn
+ | Promise<createAgent.AgentCallbackReturn>;
+
+ export type AgentCallback = typeof Agent.prototype.callback;
+
+ export type AgentOptions = {
+ timeout?: number;
+ };
+
+ /**
+ * Base `http.Agent` implementation.
+ * No pooling/keep-alive is implemented by default.
+ *
+ * @param {Function} callback
+ * @api public
+ */
+ export class Agent extends EventEmitter {
+ public timeout: number | null;
+ public maxFreeSockets: number;
+ public maxTotalSockets: number;
+ public maxSockets: number;
+ public sockets: {
+ [key: string]: net.Socket[];
+ };
+ public freeSockets: {
+ [key: string]: net.Socket[];
+ };
+ public requests: {
+ [key: string]: http.IncomingMessage[];
+ };
+ public options: https.AgentOptions;
+ private promisifiedCallback?: createAgent.AgentCallbackPromise;
+ private explicitDefaultPort?: number;
+ private explicitProtocol?: string;
+
+ constructor(
+ callback?: createAgent.AgentCallback | createAgent.AgentOptions,
+ _opts?: createAgent.AgentOptions
+ ) {
+ super();
+
+ let opts = _opts;
+ if (typeof callback === 'function') {
+ this.callback = callback;
+ } else if (callback) {
+ opts = callback;
+ }
+
+ // Timeout for the socket to be returned from the callback
+ this.timeout = null;
+ if (opts && typeof opts.timeout === 'number') {
+ this.timeout = opts.timeout;
+ }
+
+ // These aren't actually used by `agent-base`, but are required
+ // for the TypeScript definition files in `@types/node` :/
+ this.maxFreeSockets = 1;
+ this.maxSockets = 1;
+ this.maxTotalSockets = Infinity;
+ this.sockets = {};
+ this.freeSockets = {};
+ this.requests = {};
+ this.options = {};
+ }
+
+ get defaultPort(): number {
+ if (typeof this.explicitDefaultPort === 'number') {
+ return this.explicitDefaultPort;
+ }
+ return isSecureEndpoint() ? 443 : 80;
+ }
+
+ set defaultPort(v: number) {
+ this.explicitDefaultPort = v;
+ }
+
+ get protocol(): string {
+ if (typeof this.explicitProtocol === 'string') {
+ return this.explicitProtocol;
+ }
+ return isSecureEndpoint() ? 'https:' : 'http:';
+ }
+
+ set protocol(v: string) {
+ this.explicitProtocol = v;
+ }
+
+ callback(
+ req: createAgent.ClientRequest,
+ opts: createAgent.RequestOptions,
+ fn: createAgent.AgentCallbackCallback
+ ): void;
+ callback(
+ req: createAgent.ClientRequest,
+ opts: createAgent.RequestOptions
+ ):
+ | createAgent.AgentCallbackReturn
+ | Promise<createAgent.AgentCallbackReturn>;
+ callback(
+ req: createAgent.ClientRequest,
+ opts: createAgent.AgentOptions,
+ fn?: createAgent.AgentCallbackCallback
+ ):
+ | createAgent.AgentCallbackReturn
+ | Promise<createAgent.AgentCallbackReturn>
+ | void {
+ throw new Error(
+ '"agent-base" has no default implementation, you must subclass and override `callback()`'
+ );
+ }
+
+ /**
+ * Called by node-core's "_http_client.js" module when creating
+ * a new HTTP request with this Agent instance.
+ *
+ * @api public
+ */
+ addRequest(req: ClientRequest, _opts: RequestOptions): void {
+ const opts: RequestOptions = { ..._opts };
+
+ if (typeof opts.secureEndpoint !== 'boolean') {
+ opts.secureEndpoint = isSecureEndpoint();
+ }
+
+ if (opts.host == null) {
+ opts.host = 'localhost';
+ }
+
+ if (opts.port == null) {
+ opts.port = opts.secureEndpoint ? 443 : 80;
+ }
+
+ if (opts.protocol == null) {
+ opts.protocol = opts.secureEndpoint ? 'https:' : 'http:';
+ }
+
+ if (opts.host && opts.path) {
+ // If both a `host` and `path` are specified then it's most
+ // likely the result of a `url.parse()` call... we need to
+ // remove the `path` portion so that `net.connect()` doesn't
+ // attempt to open that as a unix socket file.
+ delete opts.path;
+ }
+
+ delete opts.agent;
+ delete opts.hostname;
+ delete opts._defaultAgent;
+ delete opts.defaultPort;
+ delete opts.createConnection;
+
+ // Hint to use "Connection: close"
+ // XXX: non-documented `http` module API :(
+ req._last = true;
+ req.shouldKeepAlive = false;
+
+ let timedOut = false;
+ let timeoutId: ReturnType<typeof setTimeout> | null = null;
+ const timeoutMs = opts.timeout || this.timeout;
+
+ const onerror = (err: NodeJS.ErrnoException) => {
+ if (req._hadError) return;
+ req.emit('error', err);
+ // For Safety. Some additional errors might fire later on
+ // and we need to make sure we don't double-fire the error event.
+ req._hadError = true;
+ };
+
+ const ontimeout = () => {
+ timeoutId = null;
+ timedOut = true;
+ const err: NodeJS.ErrnoException = new Error(
+ `A "socket" was not created for HTTP request before ${timeoutMs}ms`
+ );
+ err.code = 'ETIMEOUT';
+ onerror(err);
+ };
+
+ const callbackError = (err: NodeJS.ErrnoException) => {
+ if (timedOut) return;
+ if (timeoutId !== null) {
+ clearTimeout(timeoutId);
+ timeoutId = null;
+ }
+ onerror(err);
+ };
+
+ const onsocket = (socket: AgentCallbackReturn) => {
+ if (timedOut) return;
+ if (timeoutId != null) {
+ clearTimeout(timeoutId);
+ timeoutId = null;
+ }
+
+ if (isAgent(socket)) {
+ // `socket` is actually an `http.Agent` instance, so
+ // relinquish responsibility for this `req` to the Agent
+ // from here on
+ debug(
+ 'Callback returned another Agent instance %o',
+ socket.constructor.name
+ );
+ (socket as createAgent.Agent).addRequest(req, opts);
+ return;
+ }
+
+ if (socket) {
+ socket.once('free', () => {
+ this.freeSocket(socket as net.Socket, opts);
+ });
+ req.onSocket(socket as net.Socket);
+ return;
+ }
+
+ const err = new Error(
+ `no Duplex stream was returned to agent-base for \`${req.method} ${req.path}\``
+ );
+ onerror(err);
+ };
+
+ if (typeof this.callback !== 'function') {
+ onerror(new Error('`callback` is not defined'));
+ return;
+ }
+
+ if (!this.promisifiedCallback) {
+ if (this.callback.length >= 3) {
+ debug('Converting legacy callback function to promise');
+ this.promisifiedCallback = promisify(this.callback);
+ } else {
+ this.promisifiedCallback = this.callback;
+ }
+ }
+
+ if (typeof timeoutMs === 'number' && timeoutMs > 0) {
+ timeoutId = setTimeout(ontimeout, timeoutMs);
+ }
+
+ if ('port' in opts && typeof opts.port !== 'number') {
+ opts.port = Number(opts.port);
+ }
+
+ try {
+ debug(
+ 'Resolving socket for %o request: %o',
+ opts.protocol,
+ `${req.method} ${req.path}`
+ );
+ Promise.resolve(this.promisifiedCallback(req, opts)).then(
+ onsocket,
+ callbackError
+ );
+ } catch (err) {
+ Promise.reject(err).catch(callbackError);
+ }
+ }
+
+ freeSocket(socket: net.Socket, opts: AgentOptions) {
+ debug('Freeing socket %o %o', socket.constructor.name, opts);
+ socket.destroy();
+ }
+
+ destroy() {
+ debug('Destroying agent %o', this.constructor.name);
+ }
+ }
+
+ // So that `instanceof` works correctly
+ createAgent.prototype = createAgent.Agent.prototype;
+}
+
+export = createAgent;
diff --git a/backend/node_modules/agent-base/src/promisify.ts b/backend/node_modules/agent-base/src/promisify.ts
new file mode 100644
index 0000000..60cc662
--- /dev/null
+++ b/backend/node_modules/agent-base/src/promisify.ts
@@ -0,0 +1,33 @@
+import {
+ Agent,
+ ClientRequest,
+ RequestOptions,
+ AgentCallbackCallback,
+ AgentCallbackPromise,
+ AgentCallbackReturn
+} from './index';
+
+type LegacyCallback = (
+ req: ClientRequest,
+ opts: RequestOptions,
+ fn: AgentCallbackCallback
+) => void;
+
+export default function promisify(fn: LegacyCallback): AgentCallbackPromise {
+ return function(this: Agent, req: ClientRequest, opts: RequestOptions) {
+ return new Promise((resolve, reject) => {
+ fn.call(
+ this,
+ req,
+ opts,
+ (err: Error | null | undefined, rtn?: AgentCallbackReturn) => {
+ if (err) {
+ reject(err);
+ } else {
+ resolve(rtn);
+ }
+ }
+ );
+ });
+ };
+}
diff --git a/backend/node_modules/aproba/CHANGELOG.md b/backend/node_modules/aproba/CHANGELOG.md
new file mode 100644
index 0000000..bab30ec
--- /dev/null
+++ b/backend/node_modules/aproba/CHANGELOG.md
@@ -0,0 +1,4 @@
+2.0.0
+ * Drop support for 0.10 and 0.12. They haven't been in travis but still,
+ since we _know_ we'll break with them now it's only polite to do a
+ major bump.
diff --git a/backend/node_modules/aproba/LICENSE b/backend/node_modules/aproba/LICENSE
new file mode 100644
index 0000000..f4be44d
--- /dev/null
+++ b/backend/node_modules/aproba/LICENSE
@@ -0,0 +1,14 @@
+Copyright (c) 2015, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/backend/node_modules/aproba/README.md b/backend/node_modules/aproba/README.md
new file mode 100644
index 0000000..0bfc594
--- /dev/null
+++ b/backend/node_modules/aproba/README.md
@@ -0,0 +1,94 @@
+aproba
+======
+
+A ridiculously light-weight function argument validator
+
+```
+var validate = require("aproba")
+
+function myfunc(a, b, c) {
+ // `a` must be a string, `b` a number, `c` a function
+ validate('SNF', arguments) // [a,b,c] is also valid
+}
+
+myfunc('test', 23, function () {}) // ok
+myfunc(123, 23, function () {}) // type error
+myfunc('test', 23) // missing arg error
+myfunc('test', 23, function () {}, true) // too many args error
+
+```
+
+Valid types are:
+
+| type | description
+| :--: | :----------
+| * | matches any type
+| A | `Array.isArray` OR an `arguments` object
+| S | typeof == string
+| N | typeof == number
+| F | typeof == function
+| O | typeof == object and not type A and not type E
+| B | typeof == boolean
+| E | `instanceof Error` OR `null` **(special: see below)**
+| Z | == `null`
+
+Validation failures throw one of three exception types, distinguished by a
+`code` property of `EMISSINGARG`, `EINVALIDTYPE` or `ETOOMANYARGS`.
+
+If you pass in an invalid type then it will throw with a code of
+`EUNKNOWNTYPE`.
+
+If an **error** argument is found and is not null then the remaining
+arguments are optional. That is, if you say `ESO` then that's like using a
+non-magical `E` in: `E|ESO|ZSO`.
+
+### But I have optional arguments?!
+
+You can provide more than one signature by separating them with pipes `|`.
+If any signature matches the arguments then they'll be considered valid.
+
+So for example, say you wanted to write a signature for
+`fs.createWriteStream`. The docs for it describe it thusly:
+
+```
+fs.createWriteStream(path[, options])
+```
+
+This would be a signature of `SO|S`. That is, a string and and object, or
+just a string.
+
+Now, if you read the full `fs` docs, you'll see that actually path can ALSO
+be a buffer. And options can be a string, that is:
+```
+path <String> | <Buffer>
+options <String> | <Object>
+```
+
+To reproduce this you have to fully enumerate all of the possible
+combinations and that implies a signature of `SO|SS|OO|OS|S|O`. The
+awkwardness is a feature: It reminds you of the complexity you're adding to
+your API when you do this sort of thing.
+
+
+### Browser support
+
+This has no dependencies and should work in browsers, though you'll have
+noisier stack traces.
+
+### Why this exists
+
+I wanted a very simple argument validator. It needed to do two things:
+
+1. Be more concise and easier to use than assertions
+
+2. Not encourage an infinite bikeshed of DSLs
+
+This is why types are specified by a single character and there's no such
+thing as an optional argument.
+
+This is not intended to validate user data. This is specifically about
+asserting the interface of your functions.
+
+If you need greater validation, I encourage you to write them by hand or
+look elsewhere.
+
diff --git a/backend/node_modules/aproba/index.js b/backend/node_modules/aproba/index.js
new file mode 100644
index 0000000..fd94748
--- /dev/null
+++ b/backend/node_modules/aproba/index.js
@@ -0,0 +1,105 @@
+'use strict'
+module.exports = validate
+
+function isArguments (thingy) {
+ return thingy != null && typeof thingy === 'object' && thingy.hasOwnProperty('callee')
+}
+
+const types = {
+ '*': {label: 'any', check: () => true},
+ A: {label: 'array', check: _ => Array.isArray(_) || isArguments(_)},
+ S: {label: 'string', check: _ => typeof _ === 'string'},
+ N: {label: 'number', check: _ => typeof _ === 'number'},
+ F: {label: 'function', check: _ => typeof _ === 'function'},
+ O: {label: 'object', check: _ => typeof _ === 'object' && _ != null && !types.A.check(_) && !types.E.check(_)},
+ B: {label: 'boolean', check: _ => typeof _ === 'boolean'},
+ E: {label: 'error', check: _ => _ instanceof Error},
+ Z: {label: 'null', check: _ => _ == null}
+}
+
+function addSchema (schema, arity) {
+ const group = arity[schema.length] = arity[schema.length] || []
+ if (group.indexOf(schema) === -1) group.push(schema)
+}
+
+function validate (rawSchemas, args) {
+ if (arguments.length !== 2) throw wrongNumberOfArgs(['SA'], arguments.length)
+ if (!rawSchemas) throw missingRequiredArg(0, 'rawSchemas')
+ if (!args) throw missingRequiredArg(1, 'args')
+ if (!types.S.check(rawSchemas)) throw invalidType(0, ['string'], rawSchemas)
+ if (!types.A.check(args)) throw invalidType(1, ['array'], args)
+ const schemas = rawSchemas.split('|')
+ const arity = {}
+
+ schemas.forEach(schema => {
+ for (let ii = 0; ii < schema.length; ++ii) {
+ const type = schema[ii]
+ if (!types[type]) throw unknownType(ii, type)
+ }
+ if (/E.*E/.test(schema)) throw moreThanOneError(schema)
+ addSchema(schema, arity)
+ if (/E/.test(schema)) {
+ addSchema(schema.replace(/E.*$/, 'E'), arity)
+ addSchema(schema.replace(/E/, 'Z'), arity)
+ if (schema.length === 1) addSchema('', arity)
+ }
+ })
+ let matching = arity[args.length]
+ if (!matching) {
+ throw wrongNumberOfArgs(Object.keys(arity), args.length)
+ }
+ for (let ii = 0; ii < args.length; ++ii) {
+ let newMatching = matching.filter(schema => {
+ const type = schema[ii]
+ const typeCheck = types[type].check
+ return typeCheck(args[ii])
+ })
+ if (!newMatching.length) {
+ const labels = matching.map(_ => types[_[ii]].label).filter(_ => _ != null)
+ throw invalidType(ii, labels, args[ii])
+ }
+ matching = newMatching
+ }
+}
+
+function missingRequiredArg (num) {
+ return newException('EMISSINGARG', 'Missing required argument #' + (num + 1))
+}
+
+function unknownType (num, type) {
+ return newException('EUNKNOWNTYPE', 'Unknown type ' + type + ' in argument #' + (num + 1))
+}
+
+function invalidType (num, expectedTypes, value) {
+ let valueType
+ Object.keys(types).forEach(typeCode => {
+ if (types[typeCode].check(value)) valueType = types[typeCode].label
+ })
+ return newException('EINVALIDTYPE', 'Argument #' + (num + 1) + ': Expected ' +
+ englishList(expectedTypes) + ' but got ' + valueType)
+}
+
+function englishList (list) {
+ return list.join(', ').replace(/, ([^,]+)$/, ' or $1')
+}
+
+function wrongNumberOfArgs (expected, got) {
+ const english = englishList(expected)
+ const args = expected.every(ex => ex.length === 1)
+ ? 'argument'
+ : 'arguments'
+ return newException('EWRONGARGCOUNT', 'Expected ' + english + ' ' + args + ' but got ' + got)
+}
+
+function moreThanOneError (schema) {
+ return newException('ETOOMANYERRORTYPES',
+ 'Only one error type per argument signature is allowed, more than one found in "' + schema + '"')
+}
+
+function newException (code, msg) {
+ const err = new Error(msg)
+ err.code = code
+ /* istanbul ignore else */
+ if (Error.captureStackTrace) Error.captureStackTrace(err, validate)
+ return err
+}
diff --git a/backend/node_modules/aproba/package.json b/backend/node_modules/aproba/package.json
new file mode 100644
index 0000000..4c88d16
--- /dev/null
+++ b/backend/node_modules/aproba/package.json
@@ -0,0 +1,63 @@
+{
+ "_from": "aproba@^1.0.3 || ^2.0.0",
+ "_id": "aproba@2.0.0",
+ "_inBundle": false,
+ "_integrity": "sha512-lYe4Gx7QT+MKGbDsA+Z+he/Wtef0BiwDOlK/XkBrdfsh9J/jPPXbX0tE9x9cl27Tmu5gg3QUbUrQYa/y+KOHPQ==",
+ "_location": "/aproba",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "aproba@^1.0.3 || ^2.0.0",
+ "name": "aproba",
+ "escapedName": "aproba",
+ "rawSpec": "^1.0.3 || ^2.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^1.0.3 || ^2.0.0"
+ },
+ "_requiredBy": [
+ "/gauge"
+ ],
+ "_resolved": "https://registry.npmjs.org/aproba/-/aproba-2.0.0.tgz",
+ "_shasum": "52520b8ae5b569215b354efc0caa3fe1e45a8adc",
+ "_spec": "aproba@^1.0.3 || ^2.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/gauge",
+ "author": {
+ "name": "Rebecca Turner",
+ "email": "me@re-becca.org"
+ },
+ "bugs": {
+ "url": "https://github.com/iarna/aproba/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {},
+ "deprecated": false,
+ "description": "A ridiculously light-weight argument validator (now browser friendly)",
+ "devDependencies": {
+ "standard": "^11.0.1",
+ "tap": "^12.0.1"
+ },
+ "directories": {
+ "test": "test"
+ },
+ "files": [
+ "index.js"
+ ],
+ "homepage": "https://github.com/iarna/aproba",
+ "keywords": [
+ "argument",
+ "validate"
+ ],
+ "license": "ISC",
+ "main": "index.js",
+ "name": "aproba",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/iarna/aproba.git"
+ },
+ "scripts": {
+ "pretest": "standard",
+ "test": "tap --100 -J test/*.js"
+ },
+ "version": "2.0.0"
+}
diff --git a/backend/node_modules/are-we-there-yet/LICENSE.md b/backend/node_modules/are-we-there-yet/LICENSE.md
new file mode 100644
index 0000000..845be76
--- /dev/null
+++ b/backend/node_modules/are-we-there-yet/LICENSE.md
@@ -0,0 +1,18 @@
+ISC License
+
+Copyright npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NPM DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL NPM BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/are-we-there-yet/README.md b/backend/node_modules/are-we-there-yet/README.md
new file mode 100644
index 0000000..caae19b
--- /dev/null
+++ b/backend/node_modules/are-we-there-yet/README.md
@@ -0,0 +1,208 @@
+are-we-there-yet
+----------------
+
+Track complex hierarchies of asynchronous task completion statuses. This is
+intended to give you a way of recording and reporting the progress of the big
+recursive fan-out and gather type workflows that are so common in async.
+
+What you do with this completion data is up to you, but the most common use case is to
+feed it to one of the many progress bar modules.
+
+Most progress bar modules include a rudimentary version of this, but my
+needs were more complex.
+
+Usage
+=====
+
+```javascript
+var TrackerGroup = require("are-we-there-yet").TrackerGroup
+
+var top = new TrackerGroup("program")
+
+var single = top.newItem("one thing", 100)
+single.completeWork(20)
+
+console.log(top.completed()) // 0.2
+
+fs.stat("file", function(er, stat) {
+ if (er) throw er
+ var stream = top.newStream("file", stat.size)
+ console.log(top.completed()) // now 0.1 as single is 50% of the job and is 20% complete
+ // and 50% * 20% == 10%
+ fs.createReadStream("file").pipe(stream).on("data", function (chunk) {
+ // do stuff with chunk
+ })
+ top.on("change", function (name) {
+ // called each time a chunk is read from "file"
+ // top.completed() will start at 0.1 and fill up to 0.6 as the file is read
+ })
+})
+```
+
+Shared Methods
+==============
+
+* var completed = tracker.completed()
+
+Implemented in: `Tracker`, `TrackerGroup`, `TrackerStream`
+
+Returns the ratio of completed work to work to be done. Range of 0 to 1.
+
+* tracker.finish()
+
+Implemented in: `Tracker`, `TrackerGroup`
+
+Marks the tracker as completed. With a TrackerGroup this marks all of its
+components as completed.
+
+Marks all of the components of this tracker as finished, which in turn means
+that `tracker.completed()` for this will now be 1.
+
+This will result in one or more `change` events being emitted.
+
+Events
+======
+
+All tracker objects emit `change` events with the following arguments:
+
+```
+function (name, completed, tracker)
+```
+
+`name` is the name of the tracker that originally emitted the event,
+or if it didn't have one, the first containing tracker group that had one.
+
+`completed` is the percent complete (as returned by `tracker.completed()` method).
+
+`tracker` is the tracker object that you are listening for events on.
+
+TrackerGroup
+============
+
+* var tracker = new TrackerGroup(**name**)
+
+ * **name** *(optional)* - The name of this tracker group, used in change
+ notifications if the component updating didn't have a name. Defaults to undefined.
+
+Creates a new empty tracker aggregation group. These are trackers whose
+completion status is determined by the completion status of other trackers added to this aggregation group.
+
+Ex.
+
+```javascript
+var tracker = new TrackerGroup("parent")
+var foo = tracker.newItem("firstChild", 100)
+var bar = tracker.newItem("secondChild", 100)
+
+foo.finish()
+console.log(tracker.completed()) // 0.5
+bar.finish()
+console.log(tracker.completed()) // 1
+```
+
+* tracker.addUnit(**otherTracker**, **weight**)
+
+ * **otherTracker** - Any of the other are-we-there-yet tracker objects
+ * **weight** *(optional)* - The weight to give the tracker, defaults to 1.
+
+Adds the **otherTracker** to this aggregation group. The weight determines
+how long you expect this tracker to take to complete in proportion to other
+units. So for instance, if you add one tracker with a weight of 1 and
+another with a weight of 2, you're saying the second will take twice as long
+to complete as the first. As such, the first will account for 33% of the
+completion of this tracker and the second will account for the other 67%.
+
+Returns **otherTracker**.
+
+* var subGroup = tracker.newGroup(**name**, **weight**)
+
+The above is exactly equivalent to:
+
+```javascript
+ var subGroup = tracker.addUnit(new TrackerGroup(name), weight)
+```
+
+* var subItem = tracker.newItem(**name**, **todo**, **weight**)
+
+The above is exactly equivalent to:
+
+```javascript
+ var subItem = tracker.addUnit(new Tracker(name, todo), weight)
+```
+
+* var subStream = tracker.newStream(**name**, **todo**, **weight**)
+
+The above is exactly equivalent to:
+
+```javascript
+ var subStream = tracker.addUnit(new TrackerStream(name, todo), weight)
+```
+
+* console.log( tracker.debug() )
+
+Returns a tree showing the completion of this tracker group and all of its
+children, including recursively entering all of the children.
+
+Tracker
+=======
+
+* var tracker = new Tracker(**name**, **todo**)
+
+ * **name** *(optional)* The name of this counter to report in change
+ events. Defaults to undefined.
+ * **todo** *(optional)* The amount of work todo (a number). Defaults to 0.
+
+Ordinarily these are constructed as a part of a tracker group (via
+`newItem`).
+
+* var completed = tracker.completed()
+
+Returns the ratio of completed work to work to be done. Range of 0 to 1. If
+total work to be done is 0 then it will return 0.
+
+* tracker.addWork(**todo**)
+
+ * **todo** A number to add to the amount of work to be done.
+
+Increases the amount of work to be done, thus decreasing the completion
+percentage. Triggers a `change` event.
+
+* tracker.completeWork(**completed**)
+
+ * **completed** A number to add to the work complete
+
+Increase the amount of work complete, thus increasing the completion percentage.
+Will never increase the work completed past the amount of work todo. That is,
+percentages > 100% are not allowed. Triggers a `change` event.
+
+* tracker.finish()
+
+Marks this tracker as finished, tracker.completed() will now be 1. Triggers
+a `change` event.
+
+TrackerStream
+=============
+
+* var tracker = new TrackerStream(**name**, **size**, **options**)
+
+ * **name** *(optional)* The name of this counter to report in change
+ events. Defaults to undefined.
+ * **size** *(optional)* The number of bytes being sent through this stream.
+ * **options** *(optional)* A hash of stream options
+
+The tracker stream object is a pass through stream that updates an internal
+tracker object each time a block passes through. It's intended to track
+downloads, file extraction and other related activities. You use it by piping
+your data source into it and then using it as your data source.
+
+If your data has a length attribute then that's used as the amount of work
+completed when the chunk is passed through. If it does not (eg, object
+streams) then each chunk counts as completing 1 unit of work, so your size
+should be the total number of objects being streamed.
+
+* tracker.addWork(**todo**)
+
+ * **todo** Increase the expected overall size by **todo** bytes.
+
+Increases the amount of work to be done, thus decreasing the completion
+percentage. Triggers a `change` event.
diff --git a/backend/node_modules/are-we-there-yet/lib/index.js b/backend/node_modules/are-we-there-yet/lib/index.js
new file mode 100644
index 0000000..57d8743
--- /dev/null
+++ b/backend/node_modules/are-we-there-yet/lib/index.js
@@ -0,0 +1,4 @@
+'use strict'
+exports.TrackerGroup = require('./tracker-group.js')
+exports.Tracker = require('./tracker.js')
+exports.TrackerStream = require('./tracker-stream.js')
diff --git a/backend/node_modules/are-we-there-yet/lib/tracker-base.js b/backend/node_modules/are-we-there-yet/lib/tracker-base.js
new file mode 100644
index 0000000..6f43687
--- /dev/null
+++ b/backend/node_modules/are-we-there-yet/lib/tracker-base.js
@@ -0,0 +1,11 @@
+'use strict'
+var EventEmitter = require('events').EventEmitter
+var util = require('util')
+
+var trackerId = 0
+var TrackerBase = module.exports = function (name) {
+ EventEmitter.call(this)
+ this.id = ++trackerId
+ this.name = name
+}
+util.inherits(TrackerBase, EventEmitter)
diff --git a/backend/node_modules/are-we-there-yet/lib/tracker-group.js b/backend/node_modules/are-we-there-yet/lib/tracker-group.js
new file mode 100644
index 0000000..9da13f8
--- /dev/null
+++ b/backend/node_modules/are-we-there-yet/lib/tracker-group.js
@@ -0,0 +1,116 @@
+'use strict'
+var util = require('util')
+var TrackerBase = require('./tracker-base.js')
+var Tracker = require('./tracker.js')
+var TrackerStream = require('./tracker-stream.js')
+
+var TrackerGroup = module.exports = function (name) {
+ TrackerBase.call(this, name)
+ this.parentGroup = null
+ this.trackers = []
+ this.completion = {}
+ this.weight = {}
+ this.totalWeight = 0
+ this.finished = false
+ this.bubbleChange = bubbleChange(this)
+}
+util.inherits(TrackerGroup, TrackerBase)
+
+function bubbleChange (trackerGroup) {
+ return function (name, completed, tracker) {
+ trackerGroup.completion[tracker.id] = completed
+ if (trackerGroup.finished) {
+ return
+ }
+ trackerGroup.emit('change', name || trackerGroup.name, trackerGroup.completed(), trackerGroup)
+ }
+}
+
+TrackerGroup.prototype.nameInTree = function () {
+ var names = []
+ var from = this
+ while (from) {
+ names.unshift(from.name)
+ from = from.parentGroup
+ }
+ return names.join('/')
+}
+
+TrackerGroup.prototype.addUnit = function (unit, weight) {
+ if (unit.addUnit) {
+ var toTest = this
+ while (toTest) {
+ if (unit === toTest) {
+ throw new Error(
+ 'Attempted to add tracker group ' +
+ unit.name + ' to tree that already includes it ' +
+ this.nameInTree(this))
+ }
+ toTest = toTest.parentGroup
+ }
+ unit.parentGroup = this
+ }
+ this.weight[unit.id] = weight || 1
+ this.totalWeight += this.weight[unit.id]
+ this.trackers.push(unit)
+ this.completion[unit.id] = unit.completed()
+ unit.on('change', this.bubbleChange)
+ if (!this.finished) {
+ this.emit('change', unit.name, this.completion[unit.id], unit)
+ }
+ return unit
+}
+
+TrackerGroup.prototype.completed = function () {
+ if (this.trackers.length === 0) {
+ return 0
+ }
+ var valPerWeight = 1 / this.totalWeight
+ var completed = 0
+ for (var ii = 0; ii < this.trackers.length; ii++) {
+ var trackerId = this.trackers[ii].id
+ completed +=
+ valPerWeight * this.weight[trackerId] * this.completion[trackerId]
+ }
+ return completed
+}
+
+TrackerGroup.prototype.newGroup = function (name, weight) {
+ return this.addUnit(new TrackerGroup(name), weight)
+}
+
+TrackerGroup.prototype.newItem = function (name, todo, weight) {
+ return this.addUnit(new Tracker(name, todo), weight)
+}
+
+TrackerGroup.prototype.newStream = function (name, todo, weight) {
+ return this.addUnit(new TrackerStream(name, todo), weight)
+}
+
+TrackerGroup.prototype.finish = function () {
+ this.finished = true
+ if (!this.trackers.length) {
+ this.addUnit(new Tracker(), 1, true)
+ }
+ for (var ii = 0; ii < this.trackers.length; ii++) {
+ var tracker = this.trackers[ii]
+ tracker.finish()
+ tracker.removeListener('change', this.bubbleChange)
+ }
+ this.emit('change', this.name, 1, this)
+}
+
+var buffer = ' '
+TrackerGroup.prototype.debug = function (depth) {
+ depth = depth || 0
+ var indent = depth ? buffer.substr(0, depth) : ''
+ var output = indent + (this.name || 'top') + ': ' + this.completed() + '\n'
+ this.trackers.forEach(function (tracker) {
+ if (tracker instanceof TrackerGroup) {
+ output += tracker.debug(depth + 1)
+ } else {
+ output += indent + ' ' + tracker.name + ': ' + tracker.completed() + '\n'
+ }
+ })
+ return output
+}
diff --git a/backend/node_modules/are-we-there-yet/lib/tracker-stream.js b/backend/node_modules/are-we-there-yet/lib/tracker-stream.js
new file mode 100644
index 0000000..e1cf850
--- /dev/null
+++ b/backend/node_modules/are-we-there-yet/lib/tracker-stream.js
@@ -0,0 +1,36 @@
+'use strict'
+var util = require('util')
+var stream = require('readable-stream')
+var delegate = require('delegates')
+var Tracker = require('./tracker.js')
+
+var TrackerStream = module.exports = function (name, size, options) {
+ stream.Transform.call(this, options)
+ this.tracker = new Tracker(name, size)
+ this.name = name
+ this.id = this.tracker.id
+ this.tracker.on('change', delegateChange(this))
+}
+util.inherits(TrackerStream, stream.Transform)
+
+function delegateChange (trackerStream) {
+ return function (name, completion, tracker) {
+ trackerStream.emit('change', name, completion, trackerStream)
+ }
+}
+
+TrackerStream.prototype._transform = function (data, encoding, cb) {
+ this.tracker.completeWork(data.length ? data.length : 1)
+ this.push(data)
+ cb()
+}
+
+TrackerStream.prototype._flush = function (cb) {
+ this.tracker.finish()
+ cb()
+}
+
+delegate(TrackerStream.prototype, 'tracker')
+ .method('completed')
+ .method('addWork')
+ .method('finish')
diff --git a/backend/node_modules/are-we-there-yet/lib/tracker.js b/backend/node_modules/are-we-there-yet/lib/tracker.js
new file mode 100644
index 0000000..a8f8b3b
--- /dev/null
+++ b/backend/node_modules/are-we-there-yet/lib/tracker.js
@@ -0,0 +1,32 @@
+'use strict'
+var util = require('util')
+var TrackerBase = require('./tracker-base.js')
+
+var Tracker = module.exports = function (name, todo) {
+ TrackerBase.call(this, name)
+ this.workDone = 0
+ this.workTodo = todo || 0
+}
+util.inherits(Tracker, TrackerBase)
+
+Tracker.prototype.completed = function () {
+ return this.workTodo === 0 ? 0 : this.workDone / this.workTodo
+}
+
+Tracker.prototype.addWork = function (work) {
+ this.workTodo += work
+ this.emit('change', this.name, this.completed(), this)
+}
+
+Tracker.prototype.completeWork = function (work) {
+ this.workDone += work
+ if (this.workDone > this.workTodo) {
+ this.workDone = this.workTodo
+ }
+ this.emit('change', this.name, this.completed(), this)
+}
+
+Tracker.prototype.finish = function () {
+ this.workTodo = this.workDone = 1
+ this.emit('change', this.name, 1, this)
+}
diff --git a/backend/node_modules/are-we-there-yet/package.json b/backend/node_modules/are-we-there-yet/package.json
new file mode 100644
index 0000000..b15c207
--- /dev/null
+++ b/backend/node_modules/are-we-there-yet/package.json
@@ -0,0 +1,80 @@
+{
+ "_from": "are-we-there-yet@^2.0.0",
+ "_id": "are-we-there-yet@2.0.0",
+ "_inBundle": false,
+ "_integrity": "sha512-Ci/qENmwHnsYo9xKIcUJN5LeDKdJ6R1Z1j9V/J5wyq8nh/mYPEpIKJbBZXtZjG04HiK7zV/p6Vs9952MrMeUIw==",
+ "_location": "/are-we-there-yet",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "are-we-there-yet@^2.0.0",
+ "name": "are-we-there-yet",
+ "escapedName": "are-we-there-yet",
+ "rawSpec": "^2.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^2.0.0"
+ },
+ "_requiredBy": [
+ "/npmlog"
+ ],
+ "_resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-2.0.0.tgz",
+ "_shasum": "372e0e7bd279d8e94c653aaa1f67200884bf3e1c",
+ "_spec": "are-we-there-yet@^2.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/npmlog",
+ "author": {
+ "name": "GitHub Inc."
+ },
+ "bugs": {
+ "url": "https://github.com/npm/are-we-there-yet/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "delegates": "^1.0.0",
+ "readable-stream": "^3.6.0"
+ },
+ "deprecated": false,
+ "description": "Keep track of the overall completion of many disparate processes",
+ "devDependencies": {
+ "@npmcli/eslint-config": "^1.0.0",
+ "@npmcli/template-oss": "^1.0.2",
+ "eslint": "^7.32.0",
+ "eslint-plugin-node": "^11.1.0",
+ "tap": "^15.0.9"
+ },
+ "engines": {
+ "node": ">=10"
+ },
+ "files": [
+ "bin",
+ "lib"
+ ],
+ "homepage": "https://github.com/npm/are-we-there-yet",
+ "license": "ISC",
+ "main": "lib/index.js",
+ "name": "are-we-there-yet",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/npm/are-we-there-yet.git"
+ },
+ "scripts": {
+ "lint": "eslint '**/*.js'",
+ "lintfix": "npm run lint -- --fix",
+ "npmclilint": "npmcli-lint",
+ "postsnap": "npm run lintfix --",
+ "posttest": "npm run lint",
+ "postversion": "npm publish",
+ "prepublishOnly": "git push origin --follow-tags",
+ "preversion": "npm test",
+ "snap": "tap",
+ "test": "tap"
+ },
+ "tap": {
+ "branches": 68,
+ "statements": 92,
+ "functions": 86,
+ "lines": 92
+ },
+ "templateVersion": "1.0.2",
+ "version": "2.0.0"
+}
diff --git a/backend/node_modules/bcrypt/.editorconfig b/backend/node_modules/bcrypt/.editorconfig
new file mode 100644
index 0000000..4e12f93
--- /dev/null
+++ b/backend/node_modules/bcrypt/.editorconfig
@@ -0,0 +1,19 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[{package.json,*.yml}]
+indent_style = space
+indent_size = 2
+
+[appveyor.yml]
+end_of_line = crlf
+
+[*.md]
+trim_trailing_whitespace = false
diff --git a/backend/node_modules/bcrypt/.travis.yml b/backend/node_modules/bcrypt/.travis.yml
new file mode 100644
index 0000000..ea31b97
--- /dev/null
+++ b/backend/node_modules/bcrypt/.travis.yml
@@ -0,0 +1,63 @@
+language: node_js
+
+services:
+- docker
+
+env:
+- LINUX_CXX=g++-4.8
+
+os:
+- linux
+- osx
+
+arch:
+- amd64
+- arm64
+
+node_js:
+- '10'
+- '11'
+- '12'
+- '13'
+- '14'
+- '15'
+
+addons:
+ apt:
+ sources:
+ - ubuntu-toolchain-r-test
+ packages:
+ - g++-4.8
+ - bc
+
+before_install:
+- echo Building for Node $TRAVIS_NODE_VERSION
+- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then export CXX=$LINUX_CXX; $CXX --version;
+ fi;
+- if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then c++ --version; fi;
+- npm install -g npm@latest
+
+install: true
+
+script:
+- npm test
+- "./node_modules/.bin/node-pre-gyp configure"
+- "./node_modules/.bin/node-pre-gyp build"
+- "./node_modules/.bin/node-pre-gyp package"
+- |
+ if [[ "$TRAVIS_OS_NAME" == "linux" ]]
+ then
+ docker run -w /src --entrypoint /bin/sh -v`pwd`:/src "node:${TRAVIS_NODE_VERSION}-alpine" test_alpine.sh
+ fi
+
+deploy:
+ provider: releases
+ skip_cleanup: true
+ api_key:
+ secure: j4gQ+m02izaw56EOd0gEStHAjCRfSCkohDWvpABiPzh1YPM9MvfEMSIvzzjV/0oMqi3Sy7eGyFv47EgQHZvouW0I8BIUzxuTCE5wP8z2SjABXCa/rz4WTppTc9d9ABq8JSdz80JxEwjmuwnYeMwWgOd7sT/VDiMxLYaXj0JWO7w=
+ file_glob: true
+ file: build/stage/kelektiv/node.bcrypt.js/releases/download/*/*
+ on:
+ node_js: '10'
+ repo: kelektiv/node.bcrypt.js
+ tags: true
diff --git a/backend/node_modules/bcrypt/CHANGELOG.md b/backend/node_modules/bcrypt/CHANGELOG.md
new file mode 100644
index 0000000..8140496
--- /dev/null
+++ b/backend/node_modules/bcrypt/CHANGELOG.md
@@ -0,0 +1,171 @@
+# 5.0.1 (2021-02-22)
+
+ * Update `node-pre-gyp` to 1.0.0
+
+# 5.0.0 (2020-06-02)
+
+ * Fix the bcrypt "wrap-around" bug. It affects passwords with lengths >= 255.
+ It is uncommon but it's a bug nevertheless. Previous attempts to fix the bug
+ was unsuccessful.
+ * Experimental support for z/OS
+ * Fix a bug related to NUL in password input
+ * Update `node-pre-gyp` to 0.15.0
+
+# 4.0.1 (2020-02-27)
+
+ * Fix compilation errors in Alpine linux
+
+# 4.0.0 (2020-02-17)
+
+ * Switch to NAPI bcrypt
+ * Drop support for NodeJS 8
+
+# 3.0.8 (2019-12-31)
+
+ * Update `node-pre-gyp` to 0.14
+ * Pre-built binaries for NodeJS 13
+
+# 3.0.7 (2019-10-18)
+
+ * Update `nan` to 2.14.0
+ * Update `node-pre-gyp` to 0.13
+
+# 3.0.6 (2019-04-11)
+
+ * Update `nan` to 2.13.2
+
+# 3.0.5 (2019-03-19)
+
+ * Update `nan` to 2.13.1
+ * NodeJS 12 compatibility
+ * Remove `node-pre-gyp` from bundled dependencies
+
+# 3.0.4-napi (2019-03-08)
+
+ * Sync N-API bcrypt with NAN bcrypt
+
+# 3.0.4 (2019-02-07)
+
+ * Fix GCC, NAN and V8 deprecation warnings
+
+# 3.0.3 (2018-12-19)
+
+ * Update `nan` to 2.12.1
+
+# 3.0.2 (2018-10-18)
+
+ * Update `nan` to 2.11.1
+
+# 3.0.1 (2018-09-20)
+
+ * Update `nan` to 2.11.0
+
+# 3.0.0 (2018-07-06)
+
+ * Drop support for NodeJS <= 4
+
+# 2.0.1 (2018-04-20)
+
+ * Update `node-pre-gyp` to allow downloading prebuilt modules
+
+# 2.0.0 (2018-04-07)
+
+ * Make `2b` the default bcrypt version
+
+# 1.1.0-napi (2018-01-21)
+
+ * Initial support for [N-API](https://nodejs.org/api/n-api.html)
+
+# 1.0.3 (2016-08-23)
+
+ * update to nan v2.6.2 for NodeJS 8 support
+ * Fix: use npm scripts instead of node-gyp directly.
+
+# 1.0.2 (2016-12-31)
+
+ * Fix `compare` promise rejection with invalid arguments
+
+# 1.0.1 (2016-12-07)
+
+ * Fix destructuring imports with promises
+
+# 1.0.0 (2016-12-04)
+
+ * add Promise support (commit 2488473)
+
+# 0.8.7 (2016-06-09)
+
+ * update nan to 2.3.5 for improved node v6 support
+
+# 0.8.6 (2016-04-20)
+
+ * update nan for node v6 support
+
+# 0.8.5 (2015-08-12)
+
+ * update to nan v2 (adds support for iojs 3)
+
+# 0.8.4 (2015-07-24)
+
+ * fix deprecation warning for the Encode API
+
+# 0.8.3 (2015-05-06)
+
+ * update nan to 1.8.4 for iojs 2.x support
+
+# 0.8.2 (2015-03-28)
+
+ * always use callback for generating random bytes to avoid blocking
+
+# 0.8.1 (2015-01-18)
+ * update NaN to 1.5.0 for iojs support
+
+# 0.8.0 (2014-08-03)
+ * migrate to NAN for bindings
+
+# v0.5.0
+ * Fix for issue around empty string params throwing Errors.
+ * Method deprecation.
+ * Upgrade from libeio/ev to libuv. (shtylman)
+ ** --- NOTE --- Breaks 0.4.x compatability
+ * EV_MULTIPLICITY compile flag.
+
+# v0.4.1
+ * Thread safety fix around OpenSSL (GH-32). (bnoordhuis - through node)
+ * C++ code changes using delete and new instead of malloc and free. (shtylman)
+ * Compile options for speed, zoom. (shtylman)
+ * Move much of the type and variable checking to the JS. (shtylman)
+
+# v0.4.0
+ * Added getRounds function that will tell you the number of rounds within a hash/salt
+
+# v0.3.2
+ * Fix api issue with async salt gen first param
+
+# v0.3.1
+ * Compile under node 0.5.x
+
+# v0.3.0
+ * Internal Refactoring
+ * Remove pthread dependencies and locking
+ * Fix compiler warnings and a memory bug
+
+# v0.2.4
+ * Use threadsafe functions instead of pthread mutexes
+ * salt validation to make sure the salt is of the correct size and format
+
+# v0.2.3
+ * cygwin support
+
+# v0.2.2
+ * Remove dependency on libbsd, use libssl instead
+
+# v0.2.0
+ * Added async functionality
+ * API changes
+ * hashpw -> encrypt
+ * all old sync methods now end with _sync
+ * Removed libbsd(arc4random) dependency...now uses openssl which is more widely spread
+
+# v0.1.2
+ * Security fix. Wasn't reading rounds in properly and was always only using 4 rounds
diff --git a/backend/node_modules/bcrypt/ISSUE_TEMPLATE.md b/backend/node_modules/bcrypt/ISSUE_TEMPLATE.md
new file mode 100644
index 0000000..b4baa00
--- /dev/null
+++ b/backend/node_modules/bcrypt/ISSUE_TEMPLATE.md
@@ -0,0 +1,18 @@
+Thanks for reporting a new issue with the node bcrypt module!
+
+To help you resolve your issue faster please make sure you have done the following:
+
+* Searched existing issues (even closed ones) for your same problem
+* Make sure you have installed the required dependencies listed on the readme
+* Read your npm error log for lines telling you what failed, usually it is a problem with not having the correct dependencies installed to build the native module
+
+Once you have done the above and are still confident that the issue is with the module, please describe it below. Some things that really help get your issue resolved faster are:
+
+* What went wrong?
+* What did you expect to happen?
+* Which version of nodejs and OS?
+* If you find a bug, please write a failing test.
+
+Thanks!
+
+P.S. If it doesn't look like you read the above then your issue will likely be closed without further explanation. Sorry, but there are just too many issues opened with no useful information or questions which have been previously addressed.
diff --git a/backend/node_modules/bcrypt/LICENSE b/backend/node_modules/bcrypt/LICENSE
new file mode 100644
index 0000000..94e2ba5
--- /dev/null
+++ b/backend/node_modules/bcrypt/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2010 Nicholas Campbell
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/backend/node_modules/bcrypt/Makefile b/backend/node_modules/bcrypt/Makefile
new file mode 100644
index 0000000..0b49b3d
--- /dev/null
+++ b/backend/node_modules/bcrypt/Makefile
@@ -0,0 +1,19 @@
+TESTS = test/*.js
+
+all: test
+
+build: clean compile
+
+compile:
+ npm install .
+ npm run install
+
+test: build
+ @./node_modules/nodeunit/bin/nodeunit \
+ $(TESTS)
+
+clean:
+ rm -Rf lib/bindings/
+
+
+.PHONY: clean test build
diff --git a/backend/node_modules/bcrypt/README.md b/backend/node_modules/bcrypt/README.md
new file mode 100644
index 0000000..dfa800f
--- /dev/null
+++ b/backend/node_modules/bcrypt/README.md
@@ -0,0 +1,374 @@
+# node.bcrypt.js
+[](https://travis-ci.org/kelektiv/node.bcrypt.js)
+[](https://david-dm.org/kelektiv/node.bcrypt.js)
+
+A library to help you hash passwords.
+
+You can read about [bcrypt in Wikipedia][bcryptwiki] as well as in the following article:
+[How To Safely Store A Password][codahale]
+
+## If You Are Submitting Bugs or Issues
+
+Verify that the node version you are using is a _stable_ version; it has an even major release number. Unstable versions are currently not supported and issues created while using an unstable version will be closed.
+
+If you are on a stable version of node, please provide a sufficient code snippet or log files for installation issues. The code snippet does not require you to include confidential information. However, it must provide enough information such that the problem can be replicable. Issues which are closed without resolution often lack required information for replication.
+
+
+## Version Compatibility
+
+| Node Version | Bcrypt Version |
+| -------------- | ------------------|
+| 0.4 | <= 0.4 |
+| 0.6, 0.8, 0.10 | >= 0.5 |
+| 0.11 | >= 0.8 |
+| 4 | <= 2.1.0 |
+| 8 | >= 1.0.3 < 4.0.0 |
+| 10, 11 | >= 3 |
+| 12 onwards | >= 3.0.6 |
+
+`node-gyp` only works with stable/released versions of node. Since the `bcrypt` module uses `node-gyp` to build and install, you'll need a stable version of node to use bcrypt. If you do not, you'll likely see an error that starts with:
+
+```
+gyp ERR! stack Error: "pre" versions of node cannot be installed, use the --nodedir flag instead
+```
+
+## Security Issues And Concerns
+
+> Per bcrypt implementation, only the first 72 bytes of a string are used. Any extra bytes are ignored when matching passwords. Note that this is not the first 72 *characters*. It is possible for a string to contain less than 72 characters, while taking up more than 72 bytes (e.g. a UTF-8 encoded string containing emojis).
+
+As should be the case with any security tool, this library should be scrutinized by anyone using it. If you find or suspect an issue with the code, please bring it to my attention and I'll spend some time trying to make sure that this tool is as secure as possible.
+
+To make it easier for people using this tool to analyze what has been surveyed, here is a list of BCrypt related security issues/concerns as they've come up.
+
+* An [issue with passwords][jtr] was found with a version of the Blowfish algorithm developed for John the Ripper. This is not present in the OpenBSD version and is thus not a problem for this module. HT [zooko][zooko].
+* Versions `< 5.0.0` suffer from bcrypt wrap-around bug and _will truncate passwords >= 255 characters leading to severely weakened passwords_. Please upgrade at earliest. See [this wiki page][wrap-around-bug] for more details.
+* Versions `< 5.0.0` _do not handle NUL characters inside passwords properly leading to all subsequent characters being dropped and thus resulting in severely weakened passwords_. Please upgrade at earliest. See [this wiki page][improper-nuls] for more details.
+
+## Compatibility Note
+
+This library supports `$2a$` and `$2b$` prefix bcrypt hashes. `$2x$` and `$2y$` hashes are specific to bcrypt implementation developed for John the Ripper. In theory, they should be compatible with `$2b$` prefix.
+
+Compatibility with hashes generated by other languages is not 100% guaranteed due to difference in character encodings. However, it should not be an issue for most cases.
+
+### Migrating from v1.0.x
+
+Hashes generated in earlier version of `bcrypt` remain 100% supported in `v2.x.x` and later versions. In most cases, the migration should be a bump in the `package.json`.
+
+Hashes generated in `v2.x.x` using the defaults parameters will not work in earlier versions.
+
+## Dependencies
+
+* NodeJS
+* `node-gyp`
+ * Please check the dependencies for this tool at: https://github.com/nodejs/node-gyp
+ * Windows users will need the options for c# and c++ installed with their visual studio instance.
+ * Python 2.x
+* `OpenSSL` - This is only required to build the `bcrypt` project if you are using versions <= 0.7.7. Otherwise, we're using the builtin node crypto bindings for seed data (which use the same OpenSSL code paths we were, but don't have the external dependency).
+
+## Install via NPM
+
+```
+npm install bcrypt
+```
+***Note:*** OS X users using Xcode 4.3.1 or above may need to run the following command in their terminal prior to installing if errors occur regarding xcodebuild: ```sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer```
+
+_Pre-built binaries for various NodeJS versions are made available on a best-effort basis._
+
+Only the current stable and supported LTS releases are actively tested against. Please note that there may be an interval between the release of the module and the availabilty of the compiled modules.
+
+Currently, we have pre-built binaries that support the following platforms:
+
+1. Windows x32 and x64
+2. Linux x64 (GlibC targets only). Pre-built binaries for MUSL targets such as Apline Linux are not available.
+3. macOS
+
+If you face an error like this:
+
+```
+node-pre-gyp ERR! Tried to download(404): https://github.com/kelektiv/node.bcrypt.js/releases/download/v1.0.2/bcrypt_lib-v1.0.2-node-v48-linux-x64.tar.gz
+```
+
+make sure you have the appropriate dependencies installed and configured for your platform. You can find installation instructions for the dependencies for some common platforms [in this page][depsinstall].
+
+## Usage
+
+### async (recommended)
+
+```javascript
+const bcrypt = require('bcrypt');
+const saltRounds = 10;
+const myPlaintextPassword = 's0/\/\P4$$w0rD';
+const someOtherPlaintextPassword = 'not_bacon';
+```
+
+#### To hash a password:
+
+Technique 1 (generate a salt and hash on separate function calls):
+
+```javascript
+bcrypt.genSalt(saltRounds, function(err, salt) {
+ bcrypt.hash(myPlaintextPassword, salt, function(err, hash) {
+ // Store hash in your password DB.
+ });
+});
+```
+
+Technique 2 (auto-gen a salt and hash):
+
+```javascript
+bcrypt.hash(myPlaintextPassword, saltRounds, function(err, hash) {
+ // Store hash in your password DB.
+});
+```
+
+Note that both techniques achieve the same end-result.
+
+#### To check a password:
+
+```javascript
+// Load hash from your password DB.
+bcrypt.compare(myPlaintextPassword, hash, function(err, result) {
+ // result == true
+});
+bcrypt.compare(someOtherPlaintextPassword, hash, function(err, result) {
+ // result == false
+});
+```
+
+[A Note on Timing Attacks](#a-note-on-timing-attacks)
+
+### with promises
+
+bcrypt uses whatever Promise implementation is available in `global.Promise`. NodeJS >= 0.12 has a native Promise implementation built in. However, this should work in any Promises/A+ compliant implementation.
+
+Async methods that accept a callback, return a `Promise` when callback is not specified if Promise support is available.
+
+```javascript
+bcrypt.hash(myPlaintextPassword, saltRounds).then(function(hash) {
+ // Store hash in your password DB.
+});
+```
+```javascript
+// Load hash from your password DB.
+bcrypt.compare(myPlaintextPassword, hash).then(function(result) {
+ // result == true
+});
+bcrypt.compare(someOtherPlaintextPassword, hash).then(function(result) {
+ // result == false
+});
+```
+
+This is also compatible with `async/await`
+
+```javascript
+async function checkUser(username, password) {
+ //... fetch user from a db etc.
+
+ const match = await bcrypt.compare(password, user.passwordHash);
+
+ if(match) {
+ //login
+ }
+
+ //...
+}
+```
+
+### sync
+
+```javascript
+const bcrypt = require('bcrypt');
+const saltRounds = 10;
+const myPlaintextPassword = 's0/\/\P4$$w0rD';
+const someOtherPlaintextPassword = 'not_bacon';
+```
+
+#### To hash a password:
+
+Technique 1 (generate a salt and hash on separate function calls):
+
+```javascript
+const salt = bcrypt.genSaltSync(saltRounds);
+const hash = bcrypt.hashSync(myPlaintextPassword, salt);
+// Store hash in your password DB.
+```
+
+Technique 2 (auto-gen a salt and hash):
+
+```javascript
+const hash = bcrypt.hashSync(myPlaintextPassword, saltRounds);
+// Store hash in your password DB.
+```
+
+As with async, both techniques achieve the same end-result.
+
+#### To check a password:
+
+```javascript
+// Load hash from your password DB.
+bcrypt.compareSync(myPlaintextPassword, hash); // true
+bcrypt.compareSync(someOtherPlaintextPassword, hash); // false
+```
+
+[A Note on Timing Attacks](#a-note-on-timing-attacks)
+
+### Why is async mode recommended over sync mode?
+If you are using bcrypt on a simple script, using the sync mode is perfectly fine. However, if you are using bcrypt on a server, the async mode is recommended. This is because the hashing done by bcrypt is CPU intensive, so the sync version will block the event loop and prevent your application from servicing any other inbound requests or events. The async version uses a thread pool which does not block the main event loop.
+
+## API
+
+`BCrypt.`
+
+ * `genSaltSync(rounds, minor)`
+ * `rounds` - [OPTIONAL] - the cost of processing the data. (default - 10)
+ * `minor` - [OPTIONAL] - minor version of bcrypt to use. (default - b)
+ * `genSalt(rounds, minor, cb)`
+ * `rounds` - [OPTIONAL] - the cost of processing the data. (default - 10)
+ * `minor` - [OPTIONAL] - minor version of bcrypt to use. (default - b)
+ * `cb` - [OPTIONAL] - a callback to be fired once the salt has been generated. uses eio making it asynchronous. If `cb` is not specified, a `Promise` is returned if Promise support is available.
+ * `err` - First parameter to the callback detailing any errors.
+ * `salt` - Second parameter to the callback providing the generated salt.
+ * `hashSync(data, salt)`
+ * `data` - [REQUIRED] - the data to be encrypted.
+ * `salt` - [REQUIRED] - the salt to be used to hash the password. if specified as a number then a salt will be generated with the specified number of rounds and used (see example under **Usage**).
+ * `hash(data, salt, cb)`
+ * `data` - [REQUIRED] - the data to be encrypted.
+ * `salt` - [REQUIRED] - the salt to be used to hash the password. if specified as a number then a salt will be generated with the specified number of rounds and used (see example under **Usage**).
+ * `cb` - [OPTIONAL] - a callback to be fired once the data has been encrypted. uses eio making it asynchronous. If `cb` is not specified, a `Promise` is returned if Promise support is available.
+ * `err` - First parameter to the callback detailing any errors.
+ * `encrypted` - Second parameter to the callback providing the encrypted form.
+ * `compareSync(data, encrypted)`
+ * `data` - [REQUIRED] - data to compare.
+ * `encrypted` - [REQUIRED] - data to be compared to.
+ * `compare(data, encrypted, cb)`
+ * `data` - [REQUIRED] - data to compare.
+ * `encrypted` - [REQUIRED] - data to be compared to.
+ * `cb` - [OPTIONAL] - a callback to be fired once the data has been compared. uses eio making it asynchronous. If `cb` is not specified, a `Promise` is returned if Promise support is available.
+ * `err` - First parameter to the callback detailing any errors.
+ * `same` - Second parameter to the callback providing whether the data and encrypted forms match [true | false].
+ * `getRounds(encrypted)` - return the number of rounds used to encrypt a given hash
+ * `encrypted` - [REQUIRED] - hash from which the number of rounds used should be extracted.
+
+## A Note on Rounds
+
+A note about the cost. When you are hashing your data the module will go through a series of rounds to give you a secure hash. The value you submit there is not just the number of rounds that the module will go through to hash your data. The module will use the value you enter and go through `2^rounds` iterations of processing.
+
+From @garthk, on a 2GHz core you can roughly expect:
+
+ rounds=8 : ~40 hashes/sec
+ rounds=9 : ~20 hashes/sec
+ rounds=10: ~10 hashes/sec
+ rounds=11: ~5 hashes/sec
+ rounds=12: 2-3 hashes/sec
+ rounds=13: ~1 sec/hash
+ rounds=14: ~1.5 sec/hash
+ rounds=15: ~3 sec/hash
+ rounds=25: ~1 hour/hash
+ rounds=31: 2-3 days/hash
+
+
+## A Note on Timing Attacks
+
+Because it's come up multiple times in this project, and other bcrypt projects, it needs to be said. The bcrypt comparison function is not susceptible to timing attacks. From codahale/bcrypt-ruby#42:
+
+> One of the desired properties of a cryptographic hash function is preimage attack resistance, which means there is no shortcut for generating a message which, when hashed, produces a specific digest.
+
+A great thread on this, in much more detail can be found @ codahale/bcrypt-ruby#43
+
+If you're unfamiliar with timing attacks and want to learn more you can find a great writeup @ [A Lesson In Timing Attacks][timingatk]
+
+However, timing attacks are real. And, the comparison function is _not_ time safe. What that means is that it may exit the function early in the comparison process. This happens because of the above. We don't need to be careful that an attacker is going to learn anything, and our comparison function serves to provide a comparison of hashes, it is a utility to the overall purpose of the library. If you end up using it for something else we cannot guarantee the security of the comparator. Keep that in mind as you use the library.
+
+## Hash Info
+
+The characters that comprise the resultant hash are `./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789$`.
+
+Resultant hashes will be 60 characters long and they will include the salt among other parameters, as follows:
+
+`$[algorithm]$[cost]$[salt][hash]`
+
+- 2 chars hash algorithm identifier prefix. `"$2a$" or "$2b$"` indicates BCrypt
+- Cost-factor (n). Represents the exponent used to determine how many iterations 2^n
+- 16-byte (128-bit) salt, base64 encoded to 22 characters
+- 24-byte (192-bit) hash, base64 encoded to 31 characters
+
+Example:
+```
+$2b$10$nOUIs5kJ7naTuTFkBy1veuK0kSxUFXfuaOKdOKf9xYT0KKIGSJwFa
+ | | | |
+ | | | hash-value = K0kSxUFXfuaOKdOKf9xYT0KKIGSJwFa
+ | | |
+ | | salt = nOUIs5kJ7naTuTFkBy1veu
+ | |
+ | cost-factor => 10 = 2^10 rounds
+ |
+ hash-algorithm identifier => 2b = BCrypt
+```
+
+## Testing
+
+If you create a pull request, tests better pass :)
+
+```
+npm install
+npm test
+```
+
+## Credits
+
+The code for this comes from a few sources:
+
+* blowfish.cc - OpenBSD
+* bcrypt.cc - OpenBSD
+* bcrypt::gen_salt - [gen_salt inclusion to bcrypt][bcryptgs]
+* bcrypt_node.cc - me
+
+## Contributors
+
+* [Antonio Salazar Cardozo][shadowfiend] - Early MacOS X support (when we used libbsd)
+* [Ben Glow][pixelglow] - Fixes for thread safety with async calls
+* [Van Nguyen][thegoleffect] - Found a timing attack in the comparator
+* [NewITFarmer][newitfarmer] - Initial Cygwin support
+* [David Trejo][dtrejo] - packaging fixes
+* [Alfred Westerveld][alfredwesterveld] - packaging fixes
+* [Vincent Côté-Roy][vincentr] - Testing around concurrency issues
+* [Lloyd Hilaiel][lloyd] - Documentation fixes
+* [Roman Shtylman][shtylman] - Code refactoring, general rot reduction, compile options, better memory management with delete and new, and an upgrade to libuv over eio/ev.
+* [Vadim Graboys][vadimg] - Code changes to support 0.5.5+
+* [Ben Noordhuis][bnoordhuis] - Fixed a thread safety issue in nodejs that was perfectly mappable to this module.
+* [Nate Rajlich][tootallnate] - Bindings and build process.
+* [Sean McArthur][seanmonstar] - Windows Support
+* [Fanie Oosthuysen][weareu] - Windows Support
+* [Amitosh Swain Mahapatra][agathver] - $2b$ hash support, ES6 Promise support
+* [Nicola Del Gobbo][NickNaso] - Initial implementation with N-API
+
+## License
+Unless stated elsewhere, file headers or otherwise, the license as stated in the LICENSE file.
+
+[bcryptwiki]: https://en.wikipedia.org/wiki/Bcrypt
+[bcryptgs]: http://mail-index.netbsd.org/tech-crypto/2002/05/24/msg000204.html
+[codahale]: http://codahale.com/how-to-safely-store-a-password/
+[gh13]: https://github.com/ncb000gt/node.bcrypt.js/issues/13
+[jtr]: http://www.openwall.com/lists/oss-security/2011/06/20/2
+[depsinstall]: https://github.com/kelektiv/node.bcrypt.js/wiki/Installation-Instructions
+[timingatk]: https://codahale.com/a-lesson-in-timing-attacks/
+[wrap-around-bug]: https://github.com/kelektiv/node.bcrypt.js/wiki/Security-Issues-and-Concerns#bcrypt-wrap-around-bug-medium-severity
+[improper-nuls]: https://github.com/kelektiv/node.bcrypt.js/wiki/Security-Issues-and-Concerns#improper-nul-handling-medium-severity
+
+[shadowfiend]:https://github.com/Shadowfiend
+[thegoleffect]:https://github.com/thegoleffect
+[pixelglow]:https://github.com/pixelglow
+[dtrejo]:https://github.com/dtrejo
+[alfredwesterveld]:https://github.com/alfredwesterveld
+[newitfarmer]:https://github.com/newitfarmer
+[zooko]:https://twitter.com/zooko
+[vincentr]:https://twitter.com/vincentcr
+[lloyd]:https://github.com/lloyd
+[shtylman]:https://github.com/shtylman
+[vadimg]:https://github.com/vadimg
+[bnoordhuis]:https://github.com/bnoordhuis
+[tootallnate]:https://github.com/tootallnate
+[seanmonstar]:https://github.com/seanmonstar
+[weareu]:https://github.com/weareu
+[agathver]:https://github.com/Agathver
+[NickNaso]: https://github.com/NickNaso
diff --git a/backend/node_modules/bcrypt/SECURITY.md b/backend/node_modules/bcrypt/SECURITY.md
new file mode 100644
index 0000000..c132dc8
--- /dev/null
+++ b/backend/node_modules/bcrypt/SECURITY.md
@@ -0,0 +1,15 @@
+# Security Policy
+
+As with any software, `bcrypt` is likely to have bugs. Please report any security vulnerabilities responsibly
+
+## Supported Versions
+
+| Version | Supported |
+| ------- | ------------------ |
+| 5.0.x | :white_check_mark: |
+| < 5.0 | :x: |
+
+## Reporting a Vulnerability
+
+If you are reporting a security vulnerability, please refrain from opening a GitHub issue and instead mail it to
+one of the maintainers listed in the README.
diff --git a/backend/node_modules/bcrypt/appveyor.yml b/backend/node_modules/bcrypt/appveyor.yml
new file mode 100644
index 0000000..5895b1a
--- /dev/null
+++ b/backend/node_modules/bcrypt/appveyor.yml
@@ -0,0 +1,50 @@
+environment:
+ matrix:
+ - nodejs_version: "10"
+ platform: x64
+ - nodejs_version: "10"
+ platform: x86
+ - nodejs_version: "11"
+ platform: x64
+ - nodejs_version: "11"
+ platform: x86
+ - nodejs_version: "12"
+ platform: x64
+ - nodejs_version: "12"
+ platform: x86
+ - nodejs_version: "13"
+ platform: x64
+ - nodejs_version: "13"
+ platform: x86
+ - nodejs_version: "14"
+ platform: x64
+ - nodejs_version: "14"
+ platform: x86
+
+install:
+ - where npm
+ - where node
+ - ps: Install-Product node $env:nodejs_version $env:platform
+ - 'npm install -g npm@latest'
+
+build: off
+
+artifacts:
+ - path: 'build/stage/**/bcrypt*.tar.gz'
+
+test_script:
+ - node --version
+ - npm --version
+ - npm test
+
+after_test:
+ - .\node_modules\.bin\node-pre-gyp package
+
+on_success:
+ - ps: >
+ if ($env:NODE_PRE_GYP_GITHUB_TOKEN -ne $null -and $env:APPVEYOR_REPO_TAG_NAME -match '^v(0|[1-9]+)\.(0|[1-9]+)\.(0|[1-9]+)(-\w)?$') {
+ echo "Publishing $env:APPVEYOR_REPO_TAG_NAME"
+ npm install node-pre-gyp-github@1.4.3
+ ./node_modules/.bin/node-pre-gyp-github publish --release
+ }
+
diff --git a/backend/node_modules/bcrypt/bcrypt.js b/backend/node_modules/bcrypt/bcrypt.js
new file mode 100644
index 0000000..612f9dc
--- /dev/null
+++ b/backend/node_modules/bcrypt/bcrypt.js
@@ -0,0 +1,236 @@
+'use strict';
+
+var nodePreGyp = require('@mapbox/node-pre-gyp');
+var path = require('path');
+var binding_path = nodePreGyp.find(path.resolve(path.join(__dirname, './package.json')));
+var bindings = require(binding_path);
+
+var crypto = require('crypto');
+
+var promises = require('./promises');
+
+/// generate a salt (sync)
+/// @param {Number} [rounds] number of rounds (default 10)
+/// @return {String} salt
+module.exports.genSaltSync = function genSaltSync(rounds, minor) {
+ // default 10 rounds
+ if (!rounds) {
+ rounds = 10;
+ } else if (typeof rounds !== 'number') {
+ throw new Error('rounds must be a number');
+ }
+
+ if(!minor) {
+ minor = 'b';
+ } else if(minor !== 'b' && minor !== 'a') {
+ throw new Error('minor must be either "a" or "b"');
+ }
+
+ return bindings.gen_salt_sync(minor, rounds, crypto.randomBytes(16));
+};
+
+/// generate a salt
+/// @param {Number} [rounds] number of rounds (default 10)
+/// @param {Function} cb callback(err, salt)
+module.exports.genSalt = function genSalt(rounds, minor, cb) {
+ var error;
+
+ // if callback is first argument, then use defaults for others
+ if (typeof arguments[0] === 'function') {
+ // have to set callback first otherwise arguments are overriden
+ cb = arguments[0];
+ rounds = 10;
+ minor = 'b';
+ // callback is second argument
+ } else if (typeof arguments[1] === 'function') {
+ // have to set callback first otherwise arguments are overriden
+ cb = arguments[1];
+ minor = 'b';
+ }
+
+ if (!cb) {
+ return promises.promise(genSalt, this, [rounds, minor]);
+ }
+
+ // default 10 rounds
+ if (!rounds) {
+ rounds = 10;
+ } else if (typeof rounds !== 'number') {
+ // callback error asynchronously
+ error = new Error('rounds must be a number');
+ return process.nextTick(function() {
+ cb(error);
+ });
+ }
+
+ if(!minor) {
+ minor = 'b'
+ } else if(minor !== 'b' && minor !== 'a') {
+ error = new Error('minor must be either "a" or "b"');
+ return process.nextTick(function() {
+ cb(error);
+ });
+ }
+
+ crypto.randomBytes(16, function(error, randomBytes) {
+ if (error) {
+ cb(error);
+ return;
+ }
+
+ bindings.gen_salt(minor, rounds, randomBytes, cb);
+ });
+};
+
+/// hash data using a salt
+/// @param {String|Buffer} data the data to encrypt
+/// @param {String} salt the salt to use when hashing
+/// @return {String} hash
+module.exports.hashSync = function hashSync(data, salt) {
+ if (data == null || salt == null) {
+ throw new Error('data and salt arguments required');
+ }
+
+ if (!(typeof data === 'string' || data instanceof Buffer) || (typeof salt !== 'string' && typeof salt !== 'number')) {
+ throw new Error('data must be a string or Buffer and salt must either be a salt string or a number of rounds');
+ }
+
+ if (typeof salt === 'number') {
+ salt = module.exports.genSaltSync(salt);
+ }
+
+ return bindings.encrypt_sync(data, salt);
+};
+
+/// hash data using a salt
+/// @param {String|Buffer} data the data to encrypt
+/// @param {String} salt the salt to use when hashing
+/// @param {Function} cb callback(err, hash)
+module.exports.hash = function hash(data, salt, cb) {
+ var error;
+
+ if (typeof data === 'function') {
+ error = new Error('data must be a string or Buffer and salt must either be a salt string or a number of rounds');
+ return process.nextTick(function() {
+ data(error);
+ });
+ }
+
+ if (typeof salt === 'function') {
+ error = new Error('data must be a string or Buffer and salt must either be a salt string or a number of rounds');
+ return process.nextTick(function() {
+ salt(error);
+ });
+ }
+
+ // cb exists but is not a function
+ // return a rejecting promise
+ if (cb && typeof cb !== 'function') {
+ return promises.reject(new Error('cb must be a function or null to return a Promise'));
+ }
+
+ if (!cb) {
+ return promises.promise(hash, this, [data, salt]);
+ }
+
+ if (data == null || salt == null) {
+ error = new Error('data and salt arguments required');
+ return process.nextTick(function() {
+ cb(error);
+ });
+ }
+
+ if (!(typeof data === 'string' || data instanceof Buffer) || (typeof salt !== 'string' && typeof salt !== 'number')) {
+ error = new Error('data must be a string or Buffer and salt must either be a salt string or a number of rounds');
+ return process.nextTick(function() {
+ cb(error);
+ });
+ }
+
+
+ if (typeof salt === 'number') {
+ return module.exports.genSalt(salt, function(err, salt) {
+ return bindings.encrypt(data, salt, cb);
+ });
+ }
+
+ return bindings.encrypt(data, salt, cb);
+};
+
+/// compare raw data to hash
+/// @param {String|Buffer} data the data to hash and compare
+/// @param {String} hash expected hash
+/// @return {bool} true if hashed data matches hash
+module.exports.compareSync = function compareSync(data, hash) {
+ if (data == null || hash == null) {
+ throw new Error('data and hash arguments required');
+ }
+
+ if (!(typeof data === 'string' || data instanceof Buffer) || typeof hash !== 'string') {
+ throw new Error('data must be a string or Buffer and hash must be a string');
+ }
+
+ return bindings.compare_sync(data, hash);
+};
+
+/// compare raw data to hash
+/// @param {String|Buffer} data the data to hash and compare
+/// @param {String} hash expected hash
+/// @param {Function} cb callback(err, matched) - matched is true if hashed data matches hash
+module.exports.compare = function compare(data, hash, cb) {
+ var error;
+
+ if (typeof data === 'function') {
+ error = new Error('data and hash arguments required');
+ return process.nextTick(function() {
+ data(error);
+ });
+ }
+
+ if (typeof hash === 'function') {
+ error = new Error('data and hash arguments required');
+ return process.nextTick(function() {
+ hash(error);
+ });
+ }
+
+ // cb exists but is not a function
+ // return a rejecting promise
+ if (cb && typeof cb !== 'function') {
+ return promises.reject(new Error('cb must be a function or null to return a Promise'));
+ }
+
+ if (!cb) {
+ return promises.promise(compare, this, [data, hash]);
+ }
+
+ if (data == null || hash == null) {
+ error = new Error('data and hash arguments required');
+ return process.nextTick(function() {
+ cb(error);
+ });
+ }
+
+ if (!(typeof data === 'string' || data instanceof Buffer) || typeof hash !== 'string') {
+ error = new Error('data and hash must be strings');
+ return process.nextTick(function() {
+ cb(error);
+ });
+ }
+
+ return bindings.compare(data, hash, cb);
+};
+
+/// @param {String} hash extract rounds from this hash
+/// @return {Number} the number of rounds used to encrypt a given hash
+module.exports.getRounds = function getRounds(hash) {
+ if (hash == null) {
+ throw new Error('hash argument required');
+ }
+
+ if (typeof hash !== 'string') {
+ throw new Error('hash must be a string');
+ }
+
+ return bindings.get_rounds(hash);
+};
diff --git a/backend/node_modules/bcrypt/binding.gyp b/backend/node_modules/bcrypt/binding.gyp
new file mode 100644
index 0000000..986d710
--- /dev/null
+++ b/backend/node_modules/bcrypt/binding.gyp
@@ -0,0 +1,57 @@
+{
+ 'targets': [
+ {
+ 'target_name': 'bcrypt_lib',
+ 'sources': [
+ 'src/blowfish.cc',
+ 'src/bcrypt.cc',
+ 'src/bcrypt_node.cc'
+ ],
+ 'defines': [
+ '_GNU_SOURCE',
+ ],
+ 'cflags!': [ '-fno-exceptions' ],
+ 'cflags_cc!': [ '-fno-exceptions' ],
+ 'include_dirs' : [
+ "<!@(node -p \"require('node-addon-api').include\")"
+ ],
+ 'dependencies': ["<!(node -p \"require('node-addon-api').gyp\")"],
+ 'conditions': [
+ ['OS=="win"', {
+ "msvs_settings": {
+ "VCCLCompilerTool": {
+ "ExceptionHandling": 1
+ }
+ },
+ 'defines': [
+ 'uint=unsigned int',
+ ]
+ }],
+ ['OS=="mac"', {
+ 'cflags+': ['-fvisibility=hidden'],
+ "xcode_settings": {
+ "CLANG_CXX_LIBRARY": "libc++",
+ 'GCC_ENABLE_CPP_EXCEPTIONS': 'YES',
+ 'GCC_SYMBOLS_PRIVATE_EXTERN': 'YES', # -fvisibility=hidden
+ }
+ }],
+ [ 'OS=="zos"', {
+ 'cflags': [
+ '-qascii',
+ ],
+ }],
+ ],
+ },
+ {
+ "target_name": "action_after_build",
+ "type": "none",
+ "dependencies": [ "<(module_name)" ],
+ "copies": [
+ {
+ "files": [ "<(PRODUCT_DIR)/<(module_name).node" ],
+ "destination": "<(module_path)"
+ }
+ ]
+ }
+ ]
+}
diff --git a/backend/node_modules/bcrypt/examples/async_compare.js b/backend/node_modules/bcrypt/examples/async_compare.js
new file mode 100644
index 0000000..e5a8daa
--- /dev/null
+++ b/backend/node_modules/bcrypt/examples/async_compare.js
@@ -0,0 +1,21 @@
+var bcrypt = require('../bcrypt');
+
+var start = Date.now();
+bcrypt.genSalt(10, function(err, salt) {
+ console.log('salt: ' + salt);
+ console.log('salt cb end: ' + (Date.now() - start) + 'ms');
+ bcrypt.hash('test', salt, function(err, crypted) {
+ console.log('crypted: ' + crypted);
+ console.log('crypted cb end: ' + (Date.now() - start) + 'ms');
+ console.log('rounds used from hash:', bcrypt.getRounds(crypted));
+ bcrypt.compare('test', crypted, function(err, res) {
+ console.log('compared true: ' + res);
+ console.log('compared true cb end: ' + (Date.now() - start) + 'ms');
+ });
+ bcrypt.compare('bacon', crypted, function(err, res) {
+ console.log('compared false: ' + res);
+ console.log('compared false cb end: ' + (Date.now() - start) + 'ms');
+ });
+ });
+})
+console.log('end: ' + (Date.now() - start) + 'ms');
diff --git a/backend/node_modules/bcrypt/examples/forever_gen_salt.js b/backend/node_modules/bcrypt/examples/forever_gen_salt.js
new file mode 100644
index 0000000..761686a
--- /dev/null
+++ b/backend/node_modules/bcrypt/examples/forever_gen_salt.js
@@ -0,0 +1,8 @@
+var bcrypt = require('../bcrypt');
+
+(function printSalt() {
+ bcrypt.genSalt(10, function(err, salt) {
+ console.log('salt: ' + salt);
+ printSalt();
+ });
+})()
diff --git a/backend/node_modules/bcrypt/lib/binding/napi-v3/bcrypt_lib.node b/backend/node_modules/bcrypt/lib/binding/napi-v3/bcrypt_lib.node
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diff --git a/backend/node_modules/bcrypt/package.json b/backend/node_modules/bcrypt/package.json
new file mode 100644
index 0000000..f0c7564
--- /dev/null
+++ b/backend/node_modules/bcrypt/package.json
@@ -0,0 +1,163 @@
+{
+ "_from": "bcrypt",
+ "_id": "bcrypt@5.0.1",
+ "_inBundle": false,
+ "_integrity": "sha512-9BTgmrhZM2t1bNuDtrtIMVSmmxZBrJ71n8Wg+YgdjHuIWYF7SjjmCPZFB+/5i/o/PIeRpwVJR3P+NrpIItUjqw==",
+ "_location": "/bcrypt",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "tag",
+ "registry": true,
+ "raw": "bcrypt",
+ "name": "bcrypt",
+ "escapedName": "bcrypt",
+ "rawSpec": "",
+ "saveSpec": null,
+ "fetchSpec": "latest"
+ },
+ "_requiredBy": [
+ "#USER",
+ "/"
+ ],
+ "_resolved": "https://registry.npmjs.org/bcrypt/-/bcrypt-5.0.1.tgz",
+ "_shasum": "f1a2c20f208e2ccdceea4433df0c8b2c54ecdf71",
+ "_spec": "bcrypt",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend",
+ "author": {
+ "name": "Nick Campbell",
+ "url": "https://github.com/ncb000gt"
+ },
+ "binary": {
+ "module_name": "bcrypt_lib",
+ "module_path": "./lib/binding/napi-v{napi_build_version}",
+ "package_name": "{module_name}-v{version}-napi-v{napi_build_version}-{platform}-{arch}-{libc}.tar.gz",
+ "host": "https://github.com",
+ "remote_path": "kelektiv/node.bcrypt.js/releases/download/v{version}",
+ "napi_versions": [
+ 3
+ ]
+ },
+ "bugs": {
+ "url": "https://github.com/kelektiv/node.bcrypt.js/issues"
+ },
+ "bundleDependencies": false,
+ "contributors": [
+ {
+ "name": "Antonio Salazar Cardozo",
+ "email": "savedfastcool@gmail.com",
+ "url": "https://github.com/Shadowfiend"
+ },
+ {
+ "name": "Van Nguyen",
+ "email": "the.gol.effect@gmail.com",
+ "url": "https://github.com/thegoleffect"
+ },
+ {
+ "name": "David Trejo",
+ "email": "david@dtrejo.com",
+ "url": "https://github.com/dtrejo"
+ },
+ {
+ "name": "Ben Glow",
+ "email": "glen.low@pixelglow.com",
+ "url": "https://github.com/pixelglow"
+ },
+ {
+ "name": "NewITFarmer.com",
+ "url": "https://github.com/newitfarmer"
+ },
+ {
+ "name": "Alfred Westerveld",
+ "email": "alfredwesterveld@gmail.com",
+ "url": "https://github.com/alfredwesterveld"
+ },
+ {
+ "name": "Vincent Côté-Roy",
+ "email": "vincentcr@gmail.com",
+ "url": "https://github.com/vincentcr"
+ },
+ {
+ "name": "Lloyd Hilaiel",
+ "email": "lloyd@hilaiel.com",
+ "url": "https://github.com/lloyd"
+ },
+ {
+ "name": "Roman Shtylman",
+ "email": "shtylman@gmail.com",
+ "url": "https://github.com/shtylman"
+ },
+ {
+ "name": "Vadim Graboys",
+ "email": "dimva13@gmail.com",
+ "url": "https://github.com/vadimg"
+ },
+ {
+ "name": "Ben Noorduis",
+ "url": "https://github.com/bnoordhuis"
+ },
+ {
+ "name": "Nate Rajlich",
+ "email": "nathan@tootallnate.net",
+ "url": "https://github.com/tootallnate"
+ },
+ {
+ "name": "Sean McArthur",
+ "email": "sean.monstar@gmail.com",
+ "url": "https://github.com/seanmonstar"
+ },
+ {
+ "name": "Fanie Oosthuysen",
+ "email": "fanie.oosthuysen@gmail.com",
+ "url": "https://github.com/weareu"
+ },
+ {
+ "name": "Amitosh Swain Mahapatra",
+ "email": "amitosh.swain@gmail.com",
+ "url": "https://github.com/Agathver"
+ },
+ {
+ "name": "Corbin Crutchley",
+ "email": "crutchcorn@gmail.com",
+ "url": "https://github.com/crutchcorn"
+ },
+ {
+ "name": "Nicola Del Gobbo",
+ "email": "nicoladelgobbo@gmail.com",
+ "url": "https://github.com/NickNaso"
+ }
+ ],
+ "dependencies": {
+ "@mapbox/node-pre-gyp": "^1.0.0",
+ "node-addon-api": "^3.1.0"
+ },
+ "deprecated": false,
+ "description": "A bcrypt library for NodeJS.",
+ "devDependencies": {
+ "nodeunit": "^0.11.3"
+ },
+ "engines": {
+ "node": ">= 10.0.0"
+ },
+ "homepage": "https://github.com/kelektiv/node.bcrypt.js#readme",
+ "keywords": [
+ "bcrypt",
+ "password",
+ "auth",
+ "authentication",
+ "encryption",
+ "crypt",
+ "crypto"
+ ],
+ "license": "MIT",
+ "main": "./bcrypt",
+ "name": "bcrypt",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/kelektiv/node.bcrypt.js.git"
+ },
+ "scripts": {
+ "install": "node-pre-gyp install --fallback-to-build",
+ "test": "npm install --build-from-source && nodeunit test"
+ },
+ "version": "5.0.1"
+}
diff --git a/backend/node_modules/bcrypt/promises.js b/backend/node_modules/bcrypt/promises.js
new file mode 100644
index 0000000..cd82014
--- /dev/null
+++ b/backend/node_modules/bcrypt/promises.js
@@ -0,0 +1,42 @@
+'use strict';
+
+var Promise = global.Promise;
+
+/// encapsulate a method with a node-style callback in a Promise
+/// @param {object} 'this' of the encapsulated function
+/// @param {function} function to be encapsulated
+/// @param {Array-like} args to be passed to the called function
+/// @return {Promise} a Promise encapsulating the function
+module.exports.promise = function (fn, context, args) {
+
+ if (!Array.isArray(args)) {
+ args = Array.prototype.slice.call(args);
+ }
+
+ if (typeof fn !== 'function') {
+ return Promise.reject(new Error('fn must be a function'));
+ }
+
+ return new Promise(function(resolve, reject) {
+ args.push(function(err, data) {
+ if (err) {
+ reject(err);
+ } else {
+ resolve(data);
+ }
+ });
+
+ fn.apply(context, args);
+ });
+};
+
+/// @param {err} the error to be thrown
+module.exports.reject = function (err) {
+ return Promise.reject(err);
+};
+
+/// changes the promise implementation that bcrypt uses
+/// @param {Promise} the implementation to use
+module.exports.use = function(promise) {
+ Promise = promise;
+};
diff --git a/backend/node_modules/bcrypt/src/bcrypt.cc b/backend/node_modules/bcrypt/src/bcrypt.cc
new file mode 100644
index 0000000..bd8c573
--- /dev/null
+++ b/backend/node_modules/bcrypt/src/bcrypt.cc
@@ -0,0 +1,315 @@
+/* $OpenBSD: bcrypt.c,v 1.31 2014/03/22 23:02:03 tedu Exp $ */
+
+/*
+ * Copyright (c) 1997 Niels Provos <provos@umich.edu>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* This password hashing algorithm was designed by David Mazieres
+ * <dm@lcs.mit.edu> and works as follows:
+ *
+ * 1. state := InitState ()
+ * 2. state := ExpandKey (state, salt, password)
+ * 3. REPEAT rounds:
+ * state := ExpandKey (state, 0, password)
+ * state := ExpandKey (state, 0, salt)
+ * 4. ctext := "OrpheanBeholderScryDoubt"
+ * 5. REPEAT 64:
+ * ctext := Encrypt_ECB (state, ctext);
+ * 6. RETURN Concatenate (salt, ctext);
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <string.h>
+
+#include "node_blf.h"
+
+#ifdef _WIN32
+#define snprintf _snprintf
+#endif
+
+//#if !defined(__APPLE__) && !defined(__MACH__)
+//#include "bsd/stdlib.h"
+//#endif
+
+/* This implementation is adaptable to current computing power.
+ * You can have up to 2^31 rounds which should be enough for some
+ * time to come.
+ */
+
+static void encode_base64(u_int8_t *, u_int8_t *, u_int16_t);
+static void decode_base64(u_int8_t *, u_int16_t, u_int8_t *);
+
+const static char* error = ":";
+
+const static u_int8_t Base64Code[] =
+"./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+
+const static u_int8_t index_64[128] = {
+ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
+ 255, 255, 255, 255, 255, 255, 0, 1, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63, 255, 255,
+ 255, 255, 255, 255, 255, 2, 3, 4, 5, 6,
+ 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+ 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,
+ 255, 255, 255, 255, 255, 255, 28, 29, 30,
+ 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+ 51, 52, 53, 255, 255, 255, 255, 255
+};
+#define CHAR64(c) ( (c) > 127 ? 255 : index_64[(c)])
+
+static void
+decode_base64(u_int8_t *buffer, u_int16_t len, u_int8_t *data)
+{
+ u_int8_t *bp = buffer;
+ u_int8_t *p = data;
+ u_int8_t c1, c2, c3, c4;
+ while (bp < buffer + len) {
+ c1 = CHAR64(*p);
+ c2 = CHAR64(*(p + 1));
+
+ /* Invalid data */
+ if (c1 == 255 || c2 == 255)
+ break;
+
+ *bp++ = (c1 << 2) | ((c2 & 0x30) >> 4);
+ if (bp >= buffer + len)
+ break;
+
+ c3 = CHAR64(*(p + 2));
+ if (c3 == 255)
+ break;
+
+ *bp++ = ((c2 & 0x0f) << 4) | ((c3 & 0x3c) >> 2);
+ if (bp >= buffer + len)
+ break;
+
+ c4 = CHAR64(*(p + 3));
+ if (c4 == 255)
+ break;
+ *bp++ = ((c3 & 0x03) << 6) | c4;
+
+ p += 4;
+ }
+}
+
+void
+encode_salt(char *salt, u_int8_t *csalt, char minor, u_int16_t clen, u_int8_t logr)
+{
+ salt[0] = '$';
+ salt[1] = BCRYPT_VERSION;
+ salt[2] = minor;
+ salt[3] = '$';
+
+ // Max rounds are 31
+ snprintf(salt + 4, 4, "%2.2u$", logr & 0x001F);
+
+ encode_base64((u_int8_t *) salt + 7, csalt, clen);
+}
+
+
+/* Generates a salt for this version of crypt.
+ Since versions may change. Keeping this here
+ seems sensible.
+ from: http://mail-index.netbsd.org/tech-crypto/2002/05/24/msg000204.html
+*/
+void
+bcrypt_gensalt(char minor, u_int8_t log_rounds, u_int8_t *seed, char *gsalt)
+{
+ if (log_rounds < 4)
+ log_rounds = 4;
+ else if (log_rounds > 31)
+ log_rounds = 31;
+
+ encode_salt(gsalt, seed, minor, BCRYPT_MAXSALT, log_rounds);
+}
+
+/* We handle $Vers$log2(NumRounds)$salt+passwd$
+ i.e. $2$04$iwouldntknowwhattosayetKdJ6iFtacBqJdKe6aW7ou */
+
+void
+bcrypt(const char *key, size_t key_len, const char *salt, char *encrypted)
+{
+ blf_ctx state;
+ u_int32_t rounds, i, k;
+ u_int16_t j;
+ u_int8_t salt_len, logr, minor;
+ u_int8_t ciphertext[4 * BCRYPT_BLOCKS+1] = "OrpheanBeholderScryDoubt";
+ u_int8_t csalt[BCRYPT_MAXSALT];
+ u_int32_t cdata[BCRYPT_BLOCKS];
+ int n;
+
+ /* Discard "$" identifier */
+ salt++;
+
+ if (*salt > BCRYPT_VERSION) {
+ /* How do I handle errors ? Return ':' */
+ strcpy(encrypted, error);
+ return;
+ }
+
+ /* Check for minor versions */
+ if (salt[1] != '$') {
+ switch (salt[1]) {
+ case 'a': /* 'ab' should not yield the same as 'abab' */
+ case 'b': /* cap input length at 72 bytes */
+ minor = salt[1];
+ salt++;
+ break;
+ default:
+ strcpy(encrypted, error);
+ return;
+ }
+ } else
+ minor = 0;
+
+ /* Discard version + "$" identifier */
+ salt += 2;
+
+ if (salt[2] != '$') {
+ /* Out of sync with passwd entry */
+ strcpy(encrypted, error);
+ return;
+ }
+
+ /* Computer power doesn't increase linear, 2^x should be fine */
+ n = atoi(salt);
+ if (n > 31 || n < 0) {
+ strcpy(encrypted, error);
+ return;
+ }
+ logr = (u_int8_t)n;
+ if ((rounds = (u_int32_t) 1 << logr) < BCRYPT_MINROUNDS) {
+ strcpy(encrypted, error);
+ return;
+ }
+
+ /* Discard num rounds + "$" identifier */
+ salt += 3;
+
+ if (strlen(salt) * 3 / 4 < BCRYPT_MAXSALT) {
+ strcpy(encrypted, error);
+ return;
+ }
+
+ /* We dont want the base64 salt but the raw data */
+ decode_base64(csalt, BCRYPT_MAXSALT, (u_int8_t *) salt);
+ salt_len = BCRYPT_MAXSALT;
+ if (minor <= 'a')
+ key_len = (u_int8_t)(key_len + (minor >= 'a' ? 1 : 0));
+ else
+ {
+ /* cap key_len at the actual maximum supported
+ * length here to avoid integer wraparound */
+ if (key_len > 72)
+ key_len = 72;
+ key_len++; /* include the NUL */
+ }
+
+
+ /* Setting up S-Boxes and Subkeys */
+ Blowfish_initstate(&state);
+ Blowfish_expandstate(&state, csalt, salt_len,
+ (u_int8_t *) key, key_len);
+ for (k = 0; k < rounds; k++) {
+ Blowfish_expand0state(&state, (u_int8_t *) key, key_len);
+ Blowfish_expand0state(&state, csalt, salt_len);
+ }
+
+ /* This can be precomputed later */
+ j = 0;
+ for (i = 0; i < BCRYPT_BLOCKS; i++)
+ cdata[i] = Blowfish_stream2word(ciphertext, 4 * BCRYPT_BLOCKS, &j);
+
+ /* Now do the encryption */
+ for (k = 0; k < 64; k++)
+ blf_enc(&state, cdata, BCRYPT_BLOCKS / 2);
+
+ for (i = 0; i < BCRYPT_BLOCKS; i++) {
+ ciphertext[4 * i + 3] = cdata[i] & 0xff;
+ cdata[i] = cdata[i] >> 8;
+ ciphertext[4 * i + 2] = cdata[i] & 0xff;
+ cdata[i] = cdata[i] >> 8;
+ ciphertext[4 * i + 1] = cdata[i] & 0xff;
+ cdata[i] = cdata[i] >> 8;
+ ciphertext[4 * i + 0] = cdata[i] & 0xff;
+ }
+
+ i = 0;
+ encrypted[i++] = '$';
+ encrypted[i++] = BCRYPT_VERSION;
+ if (minor)
+ encrypted[i++] = minor;
+ encrypted[i++] = '$';
+
+ snprintf(encrypted + i, 4, "%2.2u$", logr & 0x001F);
+
+ encode_base64((u_int8_t *) encrypted + i + 3, csalt, BCRYPT_MAXSALT);
+ encode_base64((u_int8_t *) encrypted + strlen(encrypted), ciphertext,
+ 4 * BCRYPT_BLOCKS - 1);
+ memset(&state, 0, sizeof(state));
+ memset(ciphertext, 0, sizeof(ciphertext));
+ memset(csalt, 0, sizeof(csalt));
+ memset(cdata, 0, sizeof(cdata));
+}
+
+u_int32_t bcrypt_get_rounds(const char * hash)
+{
+ /* skip past the leading "$" */
+ if (!hash || *(hash++) != '$') return 0;
+
+ /* skip past version */
+ if (0 == (*hash++)) return 0;
+ if (*hash && *hash != '$') hash++;
+ if (*hash++ != '$') return 0;
+
+ return atoi(hash);
+}
+
+static void
+encode_base64(u_int8_t *buffer, u_int8_t *data, u_int16_t len)
+{
+ u_int8_t *bp = buffer;
+ u_int8_t *p = data;
+ u_int8_t c1, c2;
+ while (p < data + len) {
+ c1 = *p++;
+ *bp++ = Base64Code[(c1 >> 2)];
+ c1 = (c1 & 0x03) << 4;
+ if (p >= data + len) {
+ *bp++ = Base64Code[c1];
+ break;
+ }
+ c2 = *p++;
+ c1 |= (c2 >> 4) & 0x0f;
+ *bp++ = Base64Code[c1];
+ c1 = (c2 & 0x0f) << 2;
+ if (p >= data + len) {
+ *bp++ = Base64Code[c1];
+ break;
+ }
+ c2 = *p++;
+ c1 |= (c2 >> 6) & 0x03;
+ *bp++ = Base64Code[c1];
+ *bp++ = Base64Code[c2 & 0x3f];
+ }
+ *bp = '\0';
+}
diff --git a/backend/node_modules/bcrypt/src/bcrypt_node.cc b/backend/node_modules/bcrypt/src/bcrypt_node.cc
new file mode 100644
index 0000000..ce1c62c
--- /dev/null
+++ b/backend/node_modules/bcrypt/src/bcrypt_node.cc
@@ -0,0 +1,286 @@
+#include <napi.h>
+
+#include <string>
+#include <cstring>
+#include <vector>
+#include <stdlib.h> // atoi
+
+#include "node_blf.h"
+
+#define NODE_LESS_THAN (!(NODE_VERSION_AT_LEAST(0, 5, 4)))
+
+namespace {
+
+ bool ValidateSalt(const char* salt) {
+
+ if (!salt || *salt != '$') {
+ return false;
+ }
+
+ // discard $
+ salt++;
+
+ if (*salt > BCRYPT_VERSION) {
+ return false;
+ }
+
+ if (salt[1] != '$') {
+ switch (salt[1]) {
+ case 'a':
+ case 'b':
+ salt++;
+ break;
+ default:
+ return false;
+ }
+ }
+
+ // discard version + $
+ salt += 2;
+
+ if (salt[2] != '$') {
+ return false;
+ }
+
+ int n = atoi(salt);
+ if (n > 31 || n < 0) {
+ return false;
+ }
+
+ if (((uint8_t)1 << (uint8_t)n) < BCRYPT_MINROUNDS) {
+ return false;
+ }
+
+ salt += 3;
+ if (strlen(salt) * 3 / 4 < BCRYPT_MAXSALT) {
+ return false;
+ }
+
+ return true;
+ }
+
+ inline char ToCharVersion(const std::string& str) {
+ return str[0];
+ }
+
+ /* SALT GENERATION */
+
+ class SaltAsyncWorker : public Napi::AsyncWorker {
+ public:
+ SaltAsyncWorker(const Napi::Function& callback, const std::string& seed, ssize_t rounds, char minor_ver)
+ : Napi::AsyncWorker(callback, "bcrypt:SaltAsyncWorker"), seed(seed), rounds(rounds), minor_ver(minor_ver) {
+ }
+
+ ~SaltAsyncWorker() {}
+
+ void Execute() {
+ bcrypt_gensalt(minor_ver, rounds, (u_int8_t *)&seed[0], salt);
+ }
+
+ void OnOK() {
+ Napi::HandleScope scope(Env());
+ Callback().Call({Env().Undefined(), Napi::String::New(Env(), salt)});
+ }
+
+ private:
+ std::string seed;
+ ssize_t rounds;
+ char minor_ver;
+ char salt[_SALT_LEN];
+ };
+
+ Napi::Value GenerateSalt(const Napi::CallbackInfo& info) {
+ Napi::Env env = info.Env();
+ if (info.Length() < 4) {
+ throw Napi::TypeError::New(env, "4 arguments expected");
+ }
+ if (!info[0].IsString()) {
+ throw Napi::TypeError::New(env, "First argument must be a string");
+ }
+ if (!info[2].IsBuffer() || (info[2].As<Napi::Buffer<char>>()).Length() != 16) {
+ throw Napi::TypeError::New(env, "Second argument must be a 16 byte Buffer");
+ }
+
+ const char minor_ver = ToCharVersion(info[0].As<Napi::String>());
+ const int32_t rounds = info[1].As<Napi::Number>();
+ Napi::Buffer<char> seed = info[2].As<Napi::Buffer<char>>();
+ Napi::Function callback = info[3].As<Napi::Function>();
+ SaltAsyncWorker* saltWorker = new SaltAsyncWorker(callback, std::string(seed.Data(), 16), rounds, minor_ver);
+ saltWorker->Queue();
+ return env.Undefined();
+ }
+
+ Napi::Value GenerateSaltSync(const Napi::CallbackInfo& info) {
+ Napi::Env env = info.Env();
+ if (info.Length() < 3) {
+ throw Napi::TypeError::New(env, "3 arguments expected");
+ }
+ if (!info[0].IsString()) {
+ throw Napi::TypeError::New(env, "First argument must be a string");
+ }
+ if (!info[2].IsBuffer() || (info[2].As<Napi::Buffer<char>>()).Length() != 16) {
+ throw Napi::TypeError::New(env, "Third argument must be a 16 byte Buffer");
+ }
+ const char minor_ver = ToCharVersion(info[0].As<Napi::String>());
+ const int32_t rounds = info[1].As<Napi::Number>();
+ Napi::Buffer<u_int8_t> buffer = info[2].As<Napi::Buffer<u_int8_t>>();
+ u_int8_t* seed = (u_int8_t*) buffer.Data();
+ char salt[_SALT_LEN];
+ bcrypt_gensalt(minor_ver, rounds, seed, salt);
+ return Napi::String::New(env, salt, strlen(salt));
+ }
+
+ inline std::string BufferToString(const Napi::Buffer<char> &buf) {
+ return std::string(buf.Data(), buf.Length());
+ }
+
+ /* ENCRYPT DATA - USED TO BE HASHPW */
+
+ class EncryptAsyncWorker : public Napi::AsyncWorker {
+ public:
+ EncryptAsyncWorker(const Napi::Function& callback, const std::string& input, const std::string& salt)
+ : Napi::AsyncWorker(callback, "bcrypt:EncryptAsyncWorker"), input(input), salt(salt) {
+ }
+
+ ~EncryptAsyncWorker() {}
+
+ void Execute() {
+ if (!(ValidateSalt(salt.c_str()))) {
+ SetError("Invalid salt. Salt must be in the form of: $Vers$log2(NumRounds)$saltvalue");
+ }
+ bcrypt(input.c_str(), input.length(), salt.c_str(), bcrypted);
+ }
+
+ void OnOK() {
+ Napi::HandleScope scope(Env());
+ Callback().Call({Env().Undefined(),Napi::String::New(Env(), bcrypted)});
+ }
+ private:
+ std::string input;
+ std::string salt;
+ char bcrypted[_PASSWORD_LEN];
+ };
+
+ Napi::Value Encrypt(const Napi::CallbackInfo& info) {
+ if (info.Length() < 3) {
+ throw Napi::TypeError::New(info.Env(), "3 arguments expected");
+ }
+ std::string data = info[0].IsBuffer()
+ ? BufferToString(info[0].As<Napi::Buffer<char>>())
+ : info[0].As<Napi::String>();
+ std::string salt = info[1].As<Napi::String>();
+ Napi::Function callback = info[2].As<Napi::Function>();
+ EncryptAsyncWorker* encryptWorker = new EncryptAsyncWorker(callback, data, salt);
+ encryptWorker->Queue();
+ return info.Env().Undefined();
+ }
+
+ Napi::Value EncryptSync(const Napi::CallbackInfo& info) {
+ Napi::Env env = info.Env();
+ if (info.Length() < 2) {
+ throw Napi::TypeError::New(info.Env(), "2 arguments expected");
+ }
+ std::string data = info[0].IsBuffer()
+ ? BufferToString(info[0].As<Napi::Buffer<char>>())
+ : info[0].As<Napi::String>();
+ std::string salt = info[1].As<Napi::String>();
+ if (!(ValidateSalt(salt.c_str()))) {
+ throw Napi::Error::New(env, "Invalid salt. Salt must be in the form of: $Vers$log2(NumRounds)$saltvalue");
+ }
+ char bcrypted[_PASSWORD_LEN];
+ bcrypt(data.c_str(), data.length(), salt.c_str(), bcrypted);
+ return Napi::String::New(env, bcrypted, strlen(bcrypted));
+ }
+
+ /* COMPARATOR */
+ inline bool CompareStrings(const char* s1, const char* s2) {
+ return strcmp(s1, s2) == 0;
+ }
+
+ class CompareAsyncWorker : public Napi::AsyncWorker {
+ public:
+ CompareAsyncWorker(const Napi::Function& callback, const std::string& input, const std::string& encrypted)
+ : Napi::AsyncWorker(callback, "bcrypt:CompareAsyncWorker"), input(input), encrypted(encrypted) {
+ result = false;
+ }
+
+ ~CompareAsyncWorker() {}
+
+ void Execute() {
+ char bcrypted[_PASSWORD_LEN];
+ if (ValidateSalt(encrypted.c_str())) {
+ bcrypt(input.c_str(), input.length(), encrypted.c_str(), bcrypted);
+ result = CompareStrings(bcrypted, encrypted.c_str());
+ }
+ }
+
+ void OnOK() {
+ Napi::HandleScope scope(Env());
+ Callback().Call({Env().Undefined(), Napi::Boolean::New(Env(), result)});
+ }
+
+ private:
+ std::string input;
+ std::string encrypted;
+ bool result;
+ };
+
+ Napi::Value Compare(const Napi::CallbackInfo& info) {
+ if (info.Length() < 3) {
+ throw Napi::TypeError::New(info.Env(), "3 arguments expected");
+ }
+ std::string input = info[0].IsBuffer()
+ ? BufferToString(info[0].As<Napi::Buffer<char>>())
+ : info[0].As<Napi::String>();
+ std::string encrypted = info[1].As<Napi::String>();
+ Napi::Function callback = info[2].As<Napi::Function>();
+ CompareAsyncWorker* compareWorker = new CompareAsyncWorker(callback, input, encrypted);
+ compareWorker->Queue();
+ return info.Env().Undefined();
+ }
+
+ Napi::Value CompareSync(const Napi::CallbackInfo& info) {
+ Napi::Env env = info.Env();
+ if (info.Length() < 2) {
+ throw Napi::TypeError::New(info.Env(), "2 arguments expected");
+ }
+ std::string pw = info[0].IsBuffer()
+ ? BufferToString(info[0].As<Napi::Buffer<char>>())
+ : info[0].As<Napi::String>();
+ std::string hash = info[1].As<Napi::String>();
+ char bcrypted[_PASSWORD_LEN];
+ if (ValidateSalt(hash.c_str())) {
+ bcrypt(pw.c_str(), pw.length(), hash.c_str(), bcrypted);
+ return Napi::Boolean::New(env, CompareStrings(bcrypted, hash.c_str()));
+ } else {
+ return Napi::Boolean::New(env, false);
+ }
+ }
+
+ Napi::Value GetRounds(const Napi::CallbackInfo& info) {
+ Napi::Env env = info.Env();
+ if (info.Length() < 1) {
+ throw Napi::TypeError::New(env, "1 argument expected");
+ }
+ std::string hash = info[0].As<Napi::String>();
+ u_int32_t rounds;
+ if (!(rounds = bcrypt_get_rounds(hash.c_str()))) {
+ throw Napi::Error::New(env, "invalid hash provided");
+ }
+ return Napi::Number::New(env, rounds);
+ }
+
+} // anonymous namespace
+
+Napi::Object init(Napi::Env env, Napi::Object exports) {
+ exports.Set(Napi::String::New(env, "gen_salt_sync"), Napi::Function::New(env, GenerateSaltSync));
+ exports.Set(Napi::String::New(env, "encrypt_sync"), Napi::Function::New(env, EncryptSync));
+ exports.Set(Napi::String::New(env, "compare_sync"), Napi::Function::New(env, CompareSync));
+ exports.Set(Napi::String::New(env, "get_rounds"), Napi::Function::New(env, GetRounds));
+ exports.Set(Napi::String::New(env, "gen_salt"), Napi::Function::New(env, GenerateSalt));
+ exports.Set(Napi::String::New(env, "encrypt"), Napi::Function::New(env, Encrypt));
+ exports.Set(Napi::String::New(env, "compare"), Napi::Function::New(env, Compare));
+ return exports;
+}
+
+NODE_API_MODULE(NODE_GYP_MODULE_NAME, init)
diff --git a/backend/node_modules/bcrypt/src/blowfish.cc b/backend/node_modules/bcrypt/src/blowfish.cc
new file mode 100644
index 0000000..1fc6cf1
--- /dev/null
+++ b/backend/node_modules/bcrypt/src/blowfish.cc
@@ -0,0 +1,679 @@
+/* $OpenBSD: blowfish.c,v 1.18 2004/11/02 17:23:26 hshoexer Exp $ */
+/*
+ * Blowfish block cipher for OpenBSD
+ * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+ * All rights reserved.
+ *
+ * Implementation advice by David Mazieres <dm@lcs.mit.edu>.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Niels Provos.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This code is derived from section 14.3 and the given source
+ * in section V of Applied Cryptography, second edition.
+ * Blowfish is an unpatented fast block cipher designed by
+ * Bruce Schneier.
+ */
+
+#include "node_blf.h"
+
+#undef inline
+#ifdef __GNUC__
+#define inline __inline
+#else /* !__GNUC__ */
+#define inline
+#endif /* !__GNUC__ */
+
+/* Function for Feistel Networks */
+
+#define F(s, x) ((((s)[ (((x)>>24)&0xFF)] \
+ + (s)[0x100 + (((x)>>16)&0xFF)]) \
+ ^ (s)[0x200 + (((x)>> 8)&0xFF)]) \
+ + (s)[0x300 + ( (x) &0xFF)])
+
+#define BLFRND(s,p,i,j,n) (i ^= F(s,j) ^ (p)[n])
+
+void
+Blowfish_encipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr)
+{
+ u_int32_t Xl;
+ u_int32_t Xr;
+ u_int32_t *s = c->S[0];
+ u_int32_t *p = c->P;
+
+ Xl = *xl;
+ Xr = *xr;
+
+ Xl ^= p[0];
+ BLFRND(s, p, Xr, Xl, 1); BLFRND(s, p, Xl, Xr, 2);
+ BLFRND(s, p, Xr, Xl, 3); BLFRND(s, p, Xl, Xr, 4);
+ BLFRND(s, p, Xr, Xl, 5); BLFRND(s, p, Xl, Xr, 6);
+ BLFRND(s, p, Xr, Xl, 7); BLFRND(s, p, Xl, Xr, 8);
+ BLFRND(s, p, Xr, Xl, 9); BLFRND(s, p, Xl, Xr, 10);
+ BLFRND(s, p, Xr, Xl, 11); BLFRND(s, p, Xl, Xr, 12);
+ BLFRND(s, p, Xr, Xl, 13); BLFRND(s, p, Xl, Xr, 14);
+ BLFRND(s, p, Xr, Xl, 15); BLFRND(s, p, Xl, Xr, 16);
+
+ *xl = Xr ^ p[17];
+ *xr = Xl;
+}
+
+void
+Blowfish_decipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr)
+{
+ u_int32_t Xl;
+ u_int32_t Xr;
+ u_int32_t *s = c->S[0];
+ u_int32_t *p = c->P;
+
+ Xl = *xl;
+ Xr = *xr;
+
+ Xl ^= p[17];
+ BLFRND(s, p, Xr, Xl, 16); BLFRND(s, p, Xl, Xr, 15);
+ BLFRND(s, p, Xr, Xl, 14); BLFRND(s, p, Xl, Xr, 13);
+ BLFRND(s, p, Xr, Xl, 12); BLFRND(s, p, Xl, Xr, 11);
+ BLFRND(s, p, Xr, Xl, 10); BLFRND(s, p, Xl, Xr, 9);
+ BLFRND(s, p, Xr, Xl, 8); BLFRND(s, p, Xl, Xr, 7);
+ BLFRND(s, p, Xr, Xl, 6); BLFRND(s, p, Xl, Xr, 5);
+ BLFRND(s, p, Xr, Xl, 4); BLFRND(s, p, Xl, Xr, 3);
+ BLFRND(s, p, Xr, Xl, 2); BLFRND(s, p, Xl, Xr, 1);
+
+ *xl = Xr ^ p[0];
+ *xr = Xl;
+}
+
+void
+Blowfish_initstate(blf_ctx *c)
+{
+ /* P-box and S-box tables initialized with digits of Pi */
+
+ static const blf_ctx initstate =
+ { {
+ {
+ 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
+ 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
+ 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
+ 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
+ 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
+ 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
+ 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
+ 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
+ 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
+ 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
+ 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
+ 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
+ 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
+ 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
+ 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
+ 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
+ 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
+ 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
+ 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
+ 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
+ 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
+ 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
+ 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
+ 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
+ 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
+ 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
+ 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
+ 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
+ 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
+ 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
+ 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
+ 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
+ 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
+ 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
+ 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
+ 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
+ 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
+ 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
+ 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
+ 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
+ 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
+ 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
+ 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
+ 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
+ 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
+ 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
+ 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
+ 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
+ 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
+ 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
+ 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
+ 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
+ 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
+ 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
+ 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
+ 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
+ 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
+ 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
+ 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
+ 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
+ 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
+ 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
+ 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
+ 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a},
+ {
+ 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
+ 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
+ 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
+ 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
+ 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
+ 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
+ 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
+ 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
+ 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
+ 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
+ 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
+ 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
+ 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
+ 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
+ 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
+ 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
+ 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
+ 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
+ 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
+ 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
+ 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
+ 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
+ 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
+ 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
+ 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
+ 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
+ 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
+ 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
+ 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
+ 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
+ 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
+ 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
+ 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
+ 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
+ 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
+ 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
+ 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
+ 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
+ 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
+ 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
+ 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
+ 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
+ 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
+ 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
+ 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
+ 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
+ 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
+ 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
+ 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
+ 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
+ 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
+ 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
+ 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
+ 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
+ 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
+ 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
+ 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
+ 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
+ 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
+ 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
+ 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
+ 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
+ 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
+ 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7},
+ {
+ 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
+ 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
+ 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
+ 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
+ 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
+ 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
+ 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
+ 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
+ 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
+ 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
+ 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
+ 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
+ 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
+ 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
+ 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
+ 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
+ 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
+ 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
+ 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
+ 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
+ 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
+ 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
+ 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
+ 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
+ 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
+ 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
+ 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
+ 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
+ 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
+ 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
+ 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
+ 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
+ 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
+ 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
+ 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
+ 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
+ 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
+ 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
+ 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
+ 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
+ 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
+ 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
+ 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
+ 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
+ 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
+ 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
+ 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
+ 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
+ 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
+ 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
+ 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
+ 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
+ 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
+ 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
+ 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
+ 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
+ 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
+ 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
+ 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
+ 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
+ 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
+ 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
+ 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
+ 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0},
+ {
+ 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
+ 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
+ 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
+ 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
+ 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
+ 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
+ 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
+ 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
+ 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
+ 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
+ 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
+ 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
+ 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
+ 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
+ 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
+ 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
+ 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
+ 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
+ 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
+ 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
+ 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
+ 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
+ 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
+ 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
+ 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
+ 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
+ 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
+ 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
+ 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
+ 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
+ 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
+ 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
+ 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
+ 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
+ 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
+ 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
+ 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
+ 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
+ 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
+ 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
+ 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
+ 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
+ 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
+ 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
+ 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
+ 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
+ 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
+ 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
+ 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
+ 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
+ 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
+ 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
+ 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
+ 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
+ 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
+ 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
+ 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
+ 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
+ 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
+ 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
+ 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
+ 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
+ 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
+ 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6}
+ },
+ {
+ 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
+ 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
+ 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+ 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
+ 0x9216d5d9, 0x8979fb1b
+ } };
+
+ *c = initstate;
+}
+
+u_int32_t
+Blowfish_stream2word(const u_int8_t *data, u_int16_t databytes,
+ u_int16_t *current)
+{
+ u_int8_t i;
+ u_int16_t j;
+ u_int32_t temp;
+
+ temp = 0x00000000;
+ j = *current;
+
+ for (i = 0; i < 4; i++, j++) {
+ if (j >= databytes)
+ j = 0;
+ temp = (temp << 8) | data[j];
+ }
+
+ *current = j;
+ return temp;
+}
+
+void
+Blowfish_expand0state(blf_ctx *c, const u_int8_t *key, u_int16_t keybytes)
+{
+ u_int16_t i;
+ u_int16_t j;
+ u_int16_t k;
+ u_int32_t temp;
+ u_int32_t datal;
+ u_int32_t datar;
+
+ j = 0;
+ for (i = 0; i < BLF_N + 2; i++) {
+ /* Extract 4 int8 to 1 int32 from keystream */
+ temp = Blowfish_stream2word(key, keybytes, &j);
+ c->P[i] = c->P[i] ^ temp;
+ }
+
+ j = 0;
+ datal = 0x00000000;
+ datar = 0x00000000;
+ for (i = 0; i < BLF_N + 2; i += 2) {
+ Blowfish_encipher(c, &datal, &datar);
+
+ c->P[i] = datal;
+ c->P[i + 1] = datar;
+ }
+
+ for (i = 0; i < 4; i++) {
+ for (k = 0; k < 256; k += 2) {
+ Blowfish_encipher(c, &datal, &datar);
+
+ c->S[i][k] = datal;
+ c->S[i][k + 1] = datar;
+ }
+ }
+}
+
+
+void
+Blowfish_expandstate(blf_ctx *c, const u_int8_t *data, u_int16_t databytes,
+ const u_int8_t *key, u_int16_t keybytes)
+{
+ u_int16_t i;
+ u_int16_t j;
+ u_int16_t k;
+ u_int32_t temp;
+ u_int32_t datal;
+ u_int32_t datar;
+
+ j = 0;
+ for (i = 0; i < BLF_N + 2; i++) {
+ /* Extract 4 int8 to 1 int32 from keystream */
+ temp = Blowfish_stream2word(key, keybytes, &j);
+ c->P[i] = c->P[i] ^ temp;
+ }
+
+ j = 0;
+ datal = 0x00000000;
+ datar = 0x00000000;
+ for (i = 0; i < BLF_N + 2; i += 2) {
+ datal ^= Blowfish_stream2word(data, databytes, &j);
+ datar ^= Blowfish_stream2word(data, databytes, &j);
+ Blowfish_encipher(c, &datal, &datar);
+
+ c->P[i] = datal;
+ c->P[i + 1] = datar;
+ }
+
+ for (i = 0; i < 4; i++) {
+ for (k = 0; k < 256; k += 2) {
+ datal ^= Blowfish_stream2word(data, databytes, &j);
+ datar ^= Blowfish_stream2word(data, databytes, &j);
+ Blowfish_encipher(c, &datal, &datar);
+
+ c->S[i][k] = datal;
+ c->S[i][k + 1] = datar;
+ }
+ }
+
+}
+
+void
+blf_key(blf_ctx *c, const u_int8_t *k, u_int16_t len)
+{
+ /* Initialize S-boxes and subkeys with Pi */
+ Blowfish_initstate(c);
+
+ /* Transform S-boxes and subkeys with key */
+ Blowfish_expand0state(c, k, len);
+}
+
+void
+blf_enc(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
+{
+ u_int32_t *d;
+ u_int16_t i;
+
+ d = data;
+ for (i = 0; i < blocks; i++) {
+ Blowfish_encipher(c, d, d + 1);
+ d += 2;
+ }
+}
+
+void
+blf_dec(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
+{
+ u_int32_t *d;
+ u_int16_t i;
+
+ d = data;
+ for (i = 0; i < blocks; i++) {
+ Blowfish_decipher(c, d, d + 1);
+ d += 2;
+ }
+}
+
+void
+blf_ecb_encrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
+{
+ u_int32_t l, r;
+ u_int32_t i;
+
+ for (i = 0; i < len; i += 8) {
+ l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+ r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+ Blowfish_encipher(c, &l, &r);
+ data[0] = l >> 24 & 0xff;
+ data[1] = l >> 16 & 0xff;
+ data[2] = l >> 8 & 0xff;
+ data[3] = l & 0xff;
+ data[4] = r >> 24 & 0xff;
+ data[5] = r >> 16 & 0xff;
+ data[6] = r >> 8 & 0xff;
+ data[7] = r & 0xff;
+ data += 8;
+ }
+}
+
+void
+blf_ecb_decrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
+{
+ u_int32_t l, r;
+ u_int32_t i;
+
+ for (i = 0; i < len; i += 8) {
+ l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+ r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+ Blowfish_decipher(c, &l, &r);
+ data[0] = l >> 24 & 0xff;
+ data[1] = l >> 16 & 0xff;
+ data[2] = l >> 8 & 0xff;
+ data[3] = l & 0xff;
+ data[4] = r >> 24 & 0xff;
+ data[5] = r >> 16 & 0xff;
+ data[6] = r >> 8 & 0xff;
+ data[7] = r & 0xff;
+ data += 8;
+ }
+}
+
+void
+blf_cbc_encrypt(blf_ctx *c, u_int8_t *iv, u_int8_t *data, u_int32_t len)
+{
+ u_int32_t l, r;
+ u_int32_t i, j;
+
+ for (i = 0; i < len; i += 8) {
+ for (j = 0; j < 8; j++)
+ data[j] ^= iv[j];
+ l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+ r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+ Blowfish_encipher(c, &l, &r);
+ data[0] = l >> 24 & 0xff;
+ data[1] = l >> 16 & 0xff;
+ data[2] = l >> 8 & 0xff;
+ data[3] = l & 0xff;
+ data[4] = r >> 24 & 0xff;
+ data[5] = r >> 16 & 0xff;
+ data[6] = r >> 8 & 0xff;
+ data[7] = r & 0xff;
+ iv = data;
+ data += 8;
+ }
+}
+
+void
+blf_cbc_decrypt(blf_ctx *c, u_int8_t *iva, u_int8_t *data, u_int32_t len)
+{
+ u_int32_t l, r;
+ u_int8_t *iv;
+ u_int32_t i, j;
+
+ iv = data + len - 16;
+ data = data + len - 8;
+ for (i = len - 8; i >= 8; i -= 8) {
+ l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+ r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+ Blowfish_decipher(c, &l, &r);
+ data[0] = l >> 24 & 0xff;
+ data[1] = l >> 16 & 0xff;
+ data[2] = l >> 8 & 0xff;
+ data[3] = l & 0xff;
+ data[4] = r >> 24 & 0xff;
+ data[5] = r >> 16 & 0xff;
+ data[6] = r >> 8 & 0xff;
+ data[7] = r & 0xff;
+ for (j = 0; j < 8; j++)
+ data[j] ^= iv[j];
+ iv -= 8;
+ data -= 8;
+ }
+ l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
+ r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
+ Blowfish_decipher(c, &l, &r);
+ data[0] = l >> 24 & 0xff;
+ data[1] = l >> 16 & 0xff;
+ data[2] = l >> 8 & 0xff;
+ data[3] = l & 0xff;
+ data[4] = r >> 24 & 0xff;
+ data[5] = r >> 16 & 0xff;
+ data[6] = r >> 8 & 0xff;
+ data[7] = r & 0xff;
+ for (j = 0; j < 8; j++)
+ data[j] ^= iva[j];
+}
+
+#if 0
+void
+report(u_int32_t data[], u_int16_t len)
+{
+ u_int16_t i;
+ for (i = 0; i < len; i += 2)
+ printf("Block %0hd: %08lx %08lx.\n",
+ i / 2, data[i], data[i + 1]);
+}
+void
+main(void)
+{
+
+ blf_ctx c;
+ char key[] = "AAAAA";
+ char key2[] = "abcdefghijklmnopqrstuvwxyz";
+
+ u_int32_t data[10];
+ u_int32_t data2[] =
+ {0x424c4f57l, 0x46495348l};
+
+ u_int16_t i;
+
+ /* First test */
+ for (i = 0; i < 10; i++)
+ data[i] = i;
+
+ blf_key(&c, (u_int8_t *) key, 5);
+ blf_enc(&c, data, 5);
+ blf_dec(&c, data, 1);
+ blf_dec(&c, data + 2, 4);
+ printf("Should read as 0 - 9.\n");
+ report(data, 10);
+
+ /* Second test */
+ blf_key(&c, (u_int8_t *) key2, strlen(key2));
+ blf_enc(&c, data2, 1);
+ printf("\nShould read as: 0x324ed0fe 0xf413a203.\n");
+ report(data2, 2);
+ blf_dec(&c, data2, 1);
+ report(data2, 2);
+}
+#endif
diff --git a/backend/node_modules/bcrypt/src/node_blf.h b/backend/node_modules/bcrypt/src/node_blf.h
new file mode 100644
index 0000000..2d50a39
--- /dev/null
+++ b/backend/node_modules/bcrypt/src/node_blf.h
@@ -0,0 +1,132 @@
+/* $OpenBSD: blf.h,v 1.7 2007/03/14 17:59:41 grunk Exp $ */
+/*
+ * Blowfish - a fast block cipher designed by Bruce Schneier
+ *
+ * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Niels Provos.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _NODE_BLF_H_
+#define _NODE_BLF_H_
+
+#include <sys/types.h>
+
+/* Solaris compatibility */
+#ifdef __sun
+#define u_int8_t uint8_t
+#define u_int16_t uint16_t
+#define u_int32_t uint32_t
+#define u_int64_t uint64_t
+#endif
+
+#ifdef _WIN32
+#define u_int8_t unsigned __int8
+#define u_int16_t unsigned __int16
+#define u_int32_t unsigned __int32
+#define u_int64_t unsigned __int64
+#endif
+
+/* Windows ssize_t compatibility */
+#if defined(_WIN32) || defined(_WIN64)
+# if defined(_WIN64)
+ typedef __int64 LONG_PTR;
+# else
+ typedef long LONG_PTR;
+# endif
+ typedef LONG_PTR SSIZE_T;
+ typedef SSIZE_T ssize_t;
+#endif
+
+/* z/OS compatibility */
+#ifdef __MVS__
+typedef unsigned char u_int8_t;
+typedef unsigned short u_int16_t;
+typedef unsigned int u_int32_t;
+typedef unsigned long long u_int64_t;
+#endif
+
+#define BCRYPT_VERSION '2'
+#define BCRYPT_MAXSALT 16 /* Precomputation is just so nice */
+#define BCRYPT_BLOCKS 6 /* Ciphertext blocks */
+#define BCRYPT_MINROUNDS 16 /* we have log2(rounds) in salt */
+
+/* Schneier specifies a maximum key length of 56 bytes.
+ * This ensures that every key bit affects every cipher
+ * bit. However, the subkeys can hold up to 72 bytes.
+ * Warning: For normal blowfish encryption only 56 bytes
+ * of the key affect all cipherbits.
+ */
+
+#define BLF_N 16 /* Number of Subkeys */
+#define BLF_MAXKEYLEN ((BLF_N-2)*4) /* 448 bits */
+#define BLF_MAXUTILIZED ((BLF_N+2)*4) /* 576 bits */
+
+#define _PASSWORD_LEN 128 /* max length, not counting NUL */
+#define _SALT_LEN 32 /* max length */
+
+/* Blowfish context */
+typedef struct BlowfishContext {
+ u_int32_t S[4][256]; /* S-Boxes */
+ u_int32_t P[BLF_N + 2]; /* Subkeys */
+} blf_ctx;
+
+/* Raw access to customized Blowfish
+ * blf_key is just:
+ * Blowfish_initstate( state )
+ * Blowfish_expand0state( state, key, keylen )
+ */
+
+void Blowfish_encipher(blf_ctx *, u_int32_t *, u_int32_t *);
+void Blowfish_decipher(blf_ctx *, u_int32_t *, u_int32_t *);
+void Blowfish_initstate(blf_ctx *);
+void Blowfish_expand0state(blf_ctx *, const u_int8_t *, u_int16_t);
+void Blowfish_expandstate
+(blf_ctx *, const u_int8_t *, u_int16_t, const u_int8_t *, u_int16_t);
+
+/* Standard Blowfish */
+
+void blf_key(blf_ctx *, const u_int8_t *, u_int16_t);
+void blf_enc(blf_ctx *, u_int32_t *, u_int16_t);
+void blf_dec(blf_ctx *, u_int32_t *, u_int16_t);
+
+void blf_ecb_encrypt(blf_ctx *, u_int8_t *, u_int32_t);
+void blf_ecb_decrypt(blf_ctx *, u_int8_t *, u_int32_t);
+
+void blf_cbc_encrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t);
+void blf_cbc_decrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t);
+
+/* Converts u_int8_t to u_int32_t */
+u_int32_t Blowfish_stream2word(const u_int8_t *, u_int16_t , u_int16_t *);
+
+/* bcrypt functions*/
+void bcrypt_gensalt(char, u_int8_t, u_int8_t*, char *);
+void bcrypt(const char *, size_t key_len, const char *, char *);
+void encode_salt(char *, u_int8_t *, char, u_int16_t, u_int8_t);
+u_int32_t bcrypt_get_rounds(const char *);
+
+#endif
diff --git a/backend/node_modules/bcrypt/test/async.js b/backend/node_modules/bcrypt/test/async.js
new file mode 100644
index 0000000..1e10321
--- /dev/null
+++ b/backend/node_modules/bcrypt/test/async.js
@@ -0,0 +1,181 @@
+var bcrypt = require('../bcrypt');
+
+module.exports = {
+ test_salt_length: function(assert) {
+ assert.expect(1);
+ bcrypt.genSalt(10, function(err, salt) {
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ assert.done();
+ });
+ },
+ test_salt_only_cb: function(assert) {
+ assert.doesNotThrow(function() {bcrypt.genSalt(function(err, salt) {});}, "Should not throw an Error. Rounds and seed length are optional.");
+ assert.done();
+ },
+ test_salt_rounds_is_string_number: function(assert) {
+ bcrypt.genSalt('10', void 0, function (err, salt) {
+ assert.ok((err instanceof Error), "Should be an Error. genSalt requires round to be of type number.");
+ assert.done();
+ });
+ },
+ test_salt_rounds_is_string_non_number: function(assert) {
+ bcrypt.genSalt('z', function (err, salt) {
+ assert.ok((err instanceof Error), "Should throw an Error. genSalt requires rounds to of type number.");
+ assert.done();
+ });
+ },
+ test_salt_minor: function(assert) {
+ assert.expect(3);
+ bcrypt.genSalt(10, 'a', function(err, salt) {
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2a');
+ assert.strictEqual(split_salt[2], '10');
+ assert.done();
+ });
+ },
+ test_salt_minor_b: function(assert) {
+ assert.expect(3);
+ bcrypt.genSalt(10, 'b', function(err, salt) {
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '10');
+ assert.done();
+ });
+ },
+ test_hash: function(assert) {
+ assert.expect(1);
+ bcrypt.genSalt(10, function(err, salt) {
+ bcrypt.hash('password', salt, function(err, res) {
+ assert.ok(res, "Res should be defined.");
+ assert.done();
+ });
+ });
+ },
+ test_hash_rounds: function(assert) {
+ assert.expect(1);
+ bcrypt.hash('bacon', 8, function(err, hash) {
+ assert.strictEqual(bcrypt.getRounds(hash), 8, "Number of rounds should be that specified in the function call.");
+ assert.done();
+ });
+ },
+ test_hash_empty_strings: function(assert) {
+ assert.expect(2);
+ bcrypt.genSalt(10, function(err, salt) {
+ bcrypt.hash('', salt, function(err, res) {
+ assert.ok(res, "Res should be defined even with an empty pw.");
+ bcrypt.hash('', '', function(err, res) {
+ if (err) {
+ assert.ok(err);
+ } else {
+ assert.fail();
+ }
+
+ assert.done();
+ });
+ });
+ });
+ },
+ test_hash_no_params: function(assert) {
+ bcrypt.hash(function (err, hash) {
+ assert.ok(err, "Should be an error. No params.");
+ assert.done();
+ });
+ },
+ test_hash_one_param: function(assert) {
+ bcrypt.hash('password', function (err, hash) {
+ assert.ok(err, "Should be an Error. No salt.");
+ assert.done();
+ });
+ },
+ test_hash_salt_validity: function(assert) {
+ assert.expect(3);
+ bcrypt.hash('password', '$2a$10$somesaltyvaluertsetrse', function(err, enc) {
+ assert.strictEqual(err, undefined);
+ bcrypt.hash('password', 'some$value', function(err, enc) {
+ assert.notEqual(err, undefined);
+ assert.strictEqual(err.message, "Invalid salt. Salt must be in the form of: $Vers$log2(NumRounds)$saltvalue");
+ assert.done();
+ });
+ });
+ },
+ test_verify_salt: function(assert) {
+ assert.expect(2);
+ bcrypt.genSalt(10, function(err, salt) {
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '10');
+ assert.done();
+ });
+ },
+ test_verify_salt_min_rounds: function(assert) {
+ assert.expect(2);
+ bcrypt.genSalt(1, function(err, salt) {
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '04');
+ assert.done();
+ });
+ },
+ test_verify_salt_max_rounds: function(assert) {
+ assert.expect(2);
+ bcrypt.genSalt(100, function(err, salt) {
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '31');
+ assert.done();
+ });
+ },
+ test_hash_compare: function(assert) {
+ assert.expect(3);
+ bcrypt.genSalt(10, function(err, salt) {
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ bcrypt.hash("test", salt, function(err, hash) {
+ bcrypt.compare("test", hash, function(err, res) {
+ assert.strictEqual(res, true, "These hashes should be equal.");
+ bcrypt.compare("blah", hash, function(err, res) {
+ assert.strictEqual(res, false, "These hashes should not be equal.");
+ assert.done();
+ });
+ });
+ });
+ });
+ },
+ test_hash_compare_empty_strings: function(assert) {
+ assert.expect(2);
+ var hash = bcrypt.hashSync("test", bcrypt.genSaltSync(10));
+
+ bcrypt.compare("", hash, function(err, res) {
+ assert.strictEqual(res, false, "These hashes should not be equal.");
+ bcrypt.compare("", "", function(err, res) {
+ assert.strictEqual(res, false, "These hashes should not be equal.");
+ assert.done();
+ });
+ });
+ },
+ test_hash_compare_invalid_strings: function(assert) {
+ var fullString = 'envy1362987212538';
+ var hash = '$2a$10$XOPbrlUPQdwdJUpSrIF6X.LbE14qsMmKGhM1A8W9iqaG3vv1BD7WC';
+ var wut = ':';
+ bcrypt.compare(fullString, hash, function(err, res) {
+ assert.ok(res);
+ bcrypt.compare(fullString, wut, function(err, res) {
+ assert.ok(!res);
+ assert.done();
+ });
+ });
+ },
+ test_compare_no_params: function(assert) {
+ bcrypt.compare(function(err, hash) {
+ assert.ok(err, 'Should be an error. No params.');
+ assert.done();
+ });
+ },
+ test_hash_compare_one_param: function(assert) {
+ bcrypt.compare('password', function(err, hash) {
+ assert.ok(err, 'Should be an Error. No hash.');
+ assert.done();
+ });
+ }
+};
diff --git a/backend/node_modules/bcrypt/test/implementation.js b/backend/node_modules/bcrypt/test/implementation.js
new file mode 100644
index 0000000..ad884bf
--- /dev/null
+++ b/backend/node_modules/bcrypt/test/implementation.js
@@ -0,0 +1,53 @@
+var bcrypt = require('../bcrypt');
+
+// some tests were adapted from https://github.com/riverrun/bcrypt_elixir/blob/master/test/base_test.exs
+// which are under the BSD LICENSE
+module.exports = {
+ openwall_bcrypt_tests: function(assert) {
+ assert.strictEqual(bcrypt.hashSync("U*U", "$2a$05$CCCCCCCCCCCCCCCCCCCCC."), "$2a$05$CCCCCCCCCCCCCCCCCCCCC.E5YPO9kmyuRGyh0XouQYb4YMJKvyOeW");
+ assert.strictEqual(bcrypt.hashSync("U*U*", "$2a$05$CCCCCCCCCCCCCCCCCCCCC."), "$2a$05$CCCCCCCCCCCCCCCCCCCCC.VGOzA784oUp/Z0DY336zx7pLYAy0lwK");
+ assert.strictEqual(bcrypt.hashSync("U*U*U", "$2a$05$XXXXXXXXXXXXXXXXXXXXXO"), "$2a$05$XXXXXXXXXXXXXXXXXXXXXOAcXxm9kjPGEMsLznoKqmqw7tc8WCx4a");
+ assert.strictEqual(bcrypt.hashSync("", "$2a$05$CCCCCCCCCCCCCCCCCCCCC."), "$2a$05$CCCCCCCCCCCCCCCCCCCCC.7uG0VCzI2bS7j6ymqJi9CdcdxiRTWNy");
+ assert.strictEqual(bcrypt.hashSync("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789", "$2a$05$abcdefghijklmnopqrstuu"), "$2a$05$abcdefghijklmnopqrstuu5s2v8.iXieOjg/.AySBTTZIIVFJeBui");
+ assert.done();
+ },
+ openbsd_bcrypt_tests: function(assert) {
+ assert.strictEqual(bcrypt.hashSync("000000000000000000000000000000000000000000000000000000000000000000000000", "$2a$05$CCCCCCCCCCCCCCCCCCCCC."), "$2a$05$CCCCCCCCCCCCCCCCCCCCC.6.O1dLNbjod2uo0DVcW.jHucKbPDdHS");
+ assert.strictEqual(bcrypt.hashSync("000000000000000000000000000000000000000000000000000000000000000000000000", "$2b$05$CCCCCCCCCCCCCCCCCCCCC."), "$2b$05$CCCCCCCCCCCCCCCCCCCCC.6.O1dLNbjod2uo0DVcW.jHucKbPDdHS");
+ assert.done();
+ },
+ test_long_passwords: function(assert) {
+ // bcrypt wrap-around bug in $2a$
+ assert.strictEqual(bcrypt.hashSync("012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234", "$2a$05$CCCCCCCCCCCCCCCCCCCCC."), "$2a$05$CCCCCCCCCCCCCCCCCCCCC.6.O1dLNbjod2uo0DVcW.jHucKbPDdHS");
+ assert.strictEqual(bcrypt.hashSync("01XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX", "$2a$05$CCCCCCCCCCCCCCCCCCCCC."), "$2a$05$CCCCCCCCCCCCCCCCCCCCC.6.O1dLNbjod2uo0DVcW.jHucKbPDdHS");
+
+ // tests for $2b$ which fixes wrap-around bugs
+ assert.strictEqual(bcrypt.hashSync("012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234", "$2b$05$CCCCCCCCCCCCCCCCCCCCC."), "$2b$05$CCCCCCCCCCCCCCCCCCCCC.XxrQqgBi/5Sxuq9soXzDtjIZ7w5pMfK");
+ assert.strictEqual(bcrypt.hashSync("0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345", "$2b$05$CCCCCCCCCCCCCCCCCCCCC."), "$2b$05$CCCCCCCCCCCCCCCCCCCCC.XxrQqgBi/5Sxuq9soXzDtjIZ7w5pMfK");
+ assert.done();
+ },
+ test_embedded_nulls: function(assert) {
+ assert.strictEqual(bcrypt.hashSync("Passw\0rd123", "$2b$05$CCCCCCCCCCCCCCCCCCCCC."), "$2b$05$CCCCCCCCCCCCCCCCCCCCC.VHy/kzL4sCcX3Ib3wN5rNGiRt.TpfxS");
+ assert.strictEqual(bcrypt.hashSync("Passw\0 you can literally write anything after the NUL character", "$2b$05$CCCCCCCCCCCCCCCCCCCCC."), "$2b$05$CCCCCCCCCCCCCCCCCCCCC.4vJLJQ6nZ/70INTjjSZWQ0iyUek92tu");
+ assert.strictEqual(bcrypt.hashSync(Buffer.from("Passw\0 you can literally write anything after the NUL character"), "$2b$05$CCCCCCCCCCCCCCCCCCCCC."), "$2b$05$CCCCCCCCCCCCCCCCCCCCC.4vJLJQ6nZ/70INTjjSZWQ0iyUek92tu");
+ assert.done();
+ },
+ test_shorten_salt_to_128_bits: function(assert) {
+ assert.strictEqual(bcrypt.hashSync("test", "$2a$10$1234567899123456789012"), "$2a$10$123456789912345678901u.OtL1A1eGK5wmvBKUDYKvuVKI7h2XBu");
+ assert.strictEqual(bcrypt.hashSync("U*U*", "$2a$05$CCCCCCCCCCCCCCCCCCCCCh"), "$2a$05$CCCCCCCCCCCCCCCCCCCCCeUQ7VjYZ2hd4bLYZdhuPpZMUpEUJDw1S");
+ assert.strictEqual(bcrypt.hashSync("U*U*", "$2a$05$CCCCCCCCCCCCCCCCCCCCCM"), "$2a$05$CCCCCCCCCCCCCCCCCCCCC.VGOzA784oUp/Z0DY336zx7pLYAy0lwK");
+ assert.strictEqual(bcrypt.hashSync("U*U*", "$2a$05$CCCCCCCCCCCCCCCCCCCCCA"), "$2a$05$CCCCCCCCCCCCCCCCCCCCC.VGOzA784oUp/Z0DY336zx7pLYAy0lwK");
+ assert.done();
+ },
+ test_consistency: function(assert) {
+ assert.strictEqual(bcrypt.hashSync("ππππππππ", "$2a$10$.TtQJ4Jr6isd4Hp.mVfZeu"), "$2a$10$.TtQJ4Jr6isd4Hp.mVfZeuh6Gws4rOQ/vdBczhDx.19NFK0Y84Dle");
+ assert.strictEqual(bcrypt.hashSync("p@5sw0rd", "$2b$12$zQ4CooEXdGqcwi0PHsgc8e"), "$2b$12$zQ4CooEXdGqcwi0PHsgc8eAf0DLXE/XHoBE8kCSGQ97rXwuClaPam");
+ assert.strictEqual(bcrypt.hashSync("C'est bon, la vie!", "$2b$12$cbo7LZ.wxgW4yxAA5Vqlv."), "$2b$12$cbo7LZ.wxgW4yxAA5Vqlv.KR6QFPt4qCdc9RYJNXxa/rbUOp.1sw.");
+ assert.strictEqual(bcrypt.hashSync("ἓν οἶδα ὅτι οá½Î´á½²Î½ οἶδα", "$2b$12$LeHKWR2bmrazi/6P22Jpau"), "$2b$12$LeHKWR2bmrazi/6P22JpauX5my/eKwwKpWqL7L5iEByBnxNc76FRW");
+ assert.strictEqual(bcrypt.hashSync(Buffer.from("ἓν οἶδα ὅτι οá½Î´á½²Î½ οἶδα"), "$2b$12$LeHKWR2bmrazi/6P22Jpau"), "$2b$12$LeHKWR2bmrazi/6P22JpauX5my/eKwwKpWqL7L5iEByBnxNc76FRW");
+ bcrypt.hash(Buffer.from("ἓν οἶδα ὅτι οá½Î´á½²Î½ οἶδα"), "$2b$12$LeHKWR2bmrazi/6P22Jpau", function(err, hash) {
+ assert.strictEqual(hash, "$2b$12$LeHKWR2bmrazi/6P22JpauX5my/eKwwKpWqL7L5iEByBnxNc76FRW");
+ assert.done();
+ });
+ }
+}
diff --git a/backend/node_modules/bcrypt/test/promise.js b/backend/node_modules/bcrypt/test/promise.js
new file mode 100644
index 0000000..f640992
--- /dev/null
+++ b/backend/node_modules/bcrypt/test/promise.js
@@ -0,0 +1,252 @@
+var bcrypt = require('../bcrypt');
+var promises = require('../promises');
+
+var fail = function(assert, error) {
+ assert.ok(false, error);
+ assert.done();
+};
+
+// only run these tests if Promise is available
+if (typeof Promise !== 'undefined') {
+ module.exports = {
+ test_salt_returns_promise_on_no_args: function(assert) {
+ // make sure test passes with non-native implementations such as bluebird
+ // http://stackoverflow.com/questions/27746304/how-do-i-tell-if-an-object-is-a-promise
+ assert.strictEqual(typeof bcrypt.genSalt().then, 'function', "Should return a promise");
+ assert.done();
+ },
+ test_salt_returns_promise_on_null_callback: function(assert) {
+ assert.strictEqual(typeof bcrypt.genSalt(13, null, null).then,'function', "Should return a promise");
+ assert.done();
+ },
+ test_salt_length: function(assert) {
+ assert.expect(2);
+ bcrypt.genSalt(10).then(function(salt) {
+ assert.ok(salt,'salt must be defined');
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ assert.done();
+ });
+ },
+ test_salt_rounds_is_string_number: function(assert) {
+ assert.expect(1);
+ bcrypt.genSalt('10').then(function() {
+ fail(assert, "should not be resolved");
+ }).catch(function(err) {
+ assert.ok((err instanceof Error), "Should be an Error. genSalt requires round to be of type number.");
+ }).then(function() {
+ assert.done();
+ });
+ },
+ test_salt_rounds_is_string_non_number: function(assert) {
+ assert.expect(1);
+ bcrypt.genSalt('b').then(function() {
+ fail(assert, "should not be resolved");
+ }).catch(function(err) {
+ assert.ok((err instanceof Error), "Should be an Error. genSalt requires round to be of type number.");
+ }).then(function() {
+ assert.done();
+ });
+ },
+ test_hash_returns_promise_on_null_callback: function(assert) {
+ assert.strictEqual(typeof bcrypt.hash('password', 10, null).then,'function', "Should return a promise");
+ assert.done();
+ },
+ test_hash: function(assert) {
+ assert.expect(1);
+ bcrypt.genSalt(10).then(function(salt) {
+ return bcrypt.hash('password', salt);
+ }).then(function(res) {
+ assert.ok(res, "Res should be defined.");
+ assert.done();
+ });
+ },
+ test_hash_rounds: function(assert) {
+ assert.expect(1);
+ bcrypt.hash('bacon', 8).then(function(hash) {
+ assert.strictEqual(bcrypt.getRounds(hash), 8, "Number of rounds should be that specified in the function call.");
+ assert.done();
+ });
+ },
+ test_hash_empty_strings: function(assert) {
+ assert.expect(2);
+ Promise.all([
+ bcrypt.genSalt(10).then(function(salt) {
+ return bcrypt.hash('', salt);
+ }).then(function(res) {
+ assert.ok(res, "Res should be defined even with an empty pw.");
+ }),
+ bcrypt.hash('', '').then(function() {
+ fail(assert, "should not be resolved")
+ }).catch(function(err) {
+ assert.ok(err);
+ }),
+ ]).then(function() {
+ assert.done();
+ });
+ },
+ test_hash_no_params: function(assert) {
+ assert.expect(1);
+ bcrypt.hash().then(function() {
+ fail(assert, "should not be resolved");
+ }).catch(function(err) {
+ assert.ok(err, "Should be an error. No params.");
+ }).then(function() {
+ assert.done();
+ });
+ },
+ test_hash_one_param: function(assert) {
+ assert.expect(1);
+ bcrypt.hash('password').then(function() {
+ fail(assert, "should not be resolved");
+ }).catch(function(err) {
+ assert.ok(err, "Should be an error. No salt.");
+ }).then(function() {
+ assert.done();
+ });
+ },
+ test_hash_salt_validity: function(assert) {
+ assert.expect(3);
+ Promise.all(
+ [
+ bcrypt.hash('password', '$2a$10$somesaltyvaluertsetrse').then(function(enc) {
+ assert.ok(enc, "should be resolved with a value");
+ }),
+ bcrypt.hash('password', 'some$value').then(function() {
+ fail(assert, "should not resolve");
+ }).catch(function(err) {
+ assert.notEqual(err, undefined);
+ assert.strictEqual(err.message, "Invalid salt. Salt must be in the form of: $Vers$log2(NumRounds)$saltvalue");
+ })
+ ]).then(function() {
+ assert.done();
+ });
+ },
+ test_verify_salt: function(assert) {
+ assert.expect(2);
+ bcrypt.genSalt(10).then(function(salt) {
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '10');
+ assert.done();
+ });
+ },
+ test_verify_salt_min_rounds: function(assert) {
+ assert.expect(2);
+ bcrypt.genSalt(1).then(function(salt) {
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '04');
+ assert.done();
+ });
+ },
+ test_verify_salt_max_rounds: function(assert) {
+ assert.expect(2);
+ bcrypt.genSalt(100).then(function(salt) {
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '31');
+ assert.done();
+ });
+ },
+ test_hash_compare_returns_promise_on_null_callback: function(assert) {
+ assert.strictEqual(typeof bcrypt.compare('password', 'something', null).then, 'function', "Should return a promise");
+ assert.done();
+ },
+ test_hash_compare: function(assert) {
+ assert.expect(3);
+ bcrypt.genSalt(10).then(function(salt) {
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ return bcrypt.hash("test", salt);
+ }).then(function(hash) {
+ return Promise.all(
+ [
+ bcrypt.compare("test", hash).then(function(res) {
+ assert.strictEqual(res, true, "These hashes should be equal.");
+ }),
+ bcrypt.compare("blah", hash).then(function(res) {
+ assert.strictEqual(res, false, "These hashes should not be equal.");
+ })
+ ]).then(function() {
+ assert.done();
+ });
+ });
+ },
+ test_hash_compare_empty_strings: function(assert) {
+ assert.expect(2);
+ var hash = bcrypt.hashSync("test", bcrypt.genSaltSync(10));
+ bcrypt.compare("", hash).then(function(res) {
+ assert.strictEqual(res, false, "These hashes should not be equal.");
+ return bcrypt.compare("", "");
+ }).then(function(res) {
+ assert.strictEqual(res, false, "These hashes should not be equal.");
+ assert.done();
+ });
+ },
+ test_hash_compare_invalid_strings: function(assert) {
+ var fullString = 'envy1362987212538';
+ var hash = '$2a$10$XOPbrlUPQdwdJUpSrIF6X.LbE14qsMmKGhM1A8W9iqaG3vv1BD7WC';
+ var wut = ':';
+ Promise.all([
+ bcrypt.compare(fullString, hash).then(function(res) {
+ assert.ok(res);
+ }),
+ bcrypt.compare(fullString, wut).then(function(res) {
+ assert.ok(!res);
+ })
+ ]).then(function() {
+ assert.done();
+ });
+ },
+ test_hash_compare_no_params: function(assert) {
+ assert.expect(1);
+ bcrypt.compare().then(function() {
+ fail(assert, 'Should not resolve');
+ }).catch(function(err) {
+ assert.strictEqual(err.message, 'data and hash arguments required', 'Promise should be rejected when no parameters are supplied');
+ }).then(function() {
+ assert.done();
+ });
+ },
+ test_hash_compare_one_param: function(assert) {
+ assert.expect(1);
+ bcrypt.compare('password').then(function() {
+ fail(assert, 'Should not resolve');
+ }).catch(function(err) {
+ assert.strictEqual(err.message, 'data and hash arguments required', 'Promise should be rejected when no parameters are supplied');
+ }).then(function() {
+ assert.done();
+ });
+ },
+ test_change_promise_impl_reject: function(assert) {
+
+ promises.use({
+ reject: function() {
+ return 'mock';
+ }
+ });
+
+ assert.equal(promises.reject(), 'mock');
+
+ // need to reset the promise implementation because of require cache
+ promises.use(global.Promise);
+ assert.done();
+
+ },
+ test_change_promise_impl_promise: function(assert) {
+
+ promises.use({
+ reject: function(err) {
+ assert.equal(err.message, 'fn must be a function');
+ return 'mock';
+ }
+ });
+
+ assert.equal(promises.promise('', '', ''), 'mock');
+
+ // need to reset the promise implementation because of require cache
+ promises.use(global.Promise);
+ assert.done();
+
+ }
+ };
+}
diff --git a/backend/node_modules/bcrypt/test/repetitions.js b/backend/node_modules/bcrypt/test/repetitions.js
new file mode 100644
index 0000000..f05b716
--- /dev/null
+++ b/backend/node_modules/bcrypt/test/repetitions.js
@@ -0,0 +1,118 @@
+var bcrypt = require('../bcrypt');
+
+var EXPECTED = 2500; //number of times to iterate these tests...
+
+module.exports = {
+ test_salt_length: function(assert) {
+ assert.expect(EXPECTED);
+ var n = 0;
+ for (var i = 0; i < EXPECTED; i++) {
+ bcrypt.genSalt(10, function(err, salt) {
+ assert.equals(29, salt.length, "Salt ("+salt+") isn't the correct length. It is: " + salt.length);
+ n++;
+ });
+ }
+
+ function checkVal() {
+ if (n == EXPECTED) {
+ assert.done();
+ } else {
+ setTimeout(checkVal, 100);
+ }
+ }
+ setTimeout(checkVal, 100);
+ },
+ test_hash_length: function(assert) {
+ assert.expect(EXPECTED);
+ var SALT = '$2a$04$TnjywYklQbbZjdjBgBoA4e';
+ var n = 0;
+ for (var i = 0; i < EXPECTED; i++) {
+ bcrypt.hash('test', SALT, function(err, crypted) {
+ assert.equals(60, crypted.length, "Encrypted ("+crypted+") isn't the correct length. It is: " + crypted.length);
+ n++;
+ });
+ }
+
+ function checkVal() {
+ if (n == EXPECTED) {
+ assert.done();
+ } else {
+ setTimeout(checkVal, 100);
+ }
+ }
+ setTimeout(checkVal, 100);
+ },
+ test_compare: function(assert) {
+ assert.expect(EXPECTED);
+ var HASH = '$2a$04$TnjywYklQbbZjdjBgBoA4e9G7RJt9blgMgsCvUvus4Iv4TENB5nHy';
+ var n = 0;
+ for (var i = 0; i < EXPECTED; i++) {
+ bcrypt.compare('test', HASH, function(err, match) {
+ assert.equal(true, match, "No match.");
+ n++;
+ });
+ }
+
+ function checkVal() {
+ if (n == EXPECTED) {
+ assert.done();
+ } else {
+ setTimeout(checkVal, 100);
+ }
+ }
+ setTimeout(checkVal, 100);
+ },
+ test_hash_and_compare: function(assert) {
+ assert.expect((EXPECTED-1)*3);
+ var salt = bcrypt.genSaltSync(4),
+ idx = 0,
+ good_done = false,
+ bad_done = false;
+
+ function next() {
+ return test('secret' + Math.random());
+ }
+
+ function test(password) {
+ idx += 1;
+ return bcrypt.hash(password, salt, function(err, hash) {
+ if (err) throw err;
+ //console.log('\nbcrypt iter ' + idx);
+
+ assert.ok(hash);
+
+ bcrypt.compare(password, hash, function(err, res) {
+ //if (err) throw err;
+ assert.ok(res);
+ if (idx >= (EXPECTED-1)) {
+ good_done = true;
+ }
+ });
+
+ bcrypt.compare('bad' + password, hash, function(err, res) {
+ //if (err) throw err;
+ assert.ok(!res);
+ if (idx >= (EXPECTED-1)) {
+ bad_done = true;
+ }
+ });
+
+ if (idx < ((EXPECTED)-1)) {
+ next();
+ } else {
+ function checkDone() {
+ if (idx >= (EXPECTED-1) && good_done && bad_done) {
+ assert.done();
+ } else {
+ setTimeout(checkDone, 100);
+ }
+ }
+
+ setTimeout(checkDone, 100);
+ }
+ });
+ }
+
+ next();
+ }
+};
diff --git a/backend/node_modules/bcrypt/test/sync.js b/backend/node_modules/bcrypt/test/sync.js
new file mode 100644
index 0000000..0499823
--- /dev/null
+++ b/backend/node_modules/bcrypt/test/sync.js
@@ -0,0 +1,137 @@
+var bcrypt = require('../bcrypt');
+
+module.exports = {
+ test_salt_length: function(assert) {
+ var salt = bcrypt.genSaltSync(10);
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '10');
+ assert.done();
+ },
+ test_salt_no_params: function(assert) {
+ // same as test_verify_salt except using default rounds of 10
+ var salt = bcrypt.genSaltSync();
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '10');
+ assert.done();
+ },
+ test_salt_rounds_is_string_number: function(assert) {
+ assert.throws(function() {bcrypt.genSaltSync('10');}, "Should throw an Error. No params.");
+ assert.done();
+ },
+ test_salt_rounds_is_NaN: function(assert) {
+ assert.throws(function() {bcrypt.genSaltSync('b');}, "Should throw an Error. gen_salt requires rounds to be a number.");
+ assert.done();
+ },
+ test_salt_minor_a: function(assert) {
+ var salt = bcrypt.genSaltSync(10, 'a');
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2a');
+ assert.strictEqual(split_salt[2], '10');
+ assert.done();
+ },
+ test_salt_minor_b: function(assert) {
+ var salt = bcrypt.genSaltSync(10, 'b');
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '10');
+ assert.done();
+ },
+ test_hash: function(assert) {
+ assert.ok(bcrypt.hashSync('password', bcrypt.genSaltSync(10)), "Shouldn't throw an Error.");
+ assert.done();
+ },
+ test_hash_rounds: function(assert) {
+ var hash = bcrypt.hashSync('password', 8);
+ assert.strictEqual(bcrypt.getRounds(hash), 8, "Number of rounds should equal 8.");
+ assert.done();
+ },
+ test_hash_empty_string: function(assert) {
+ assert.ok(bcrypt.hashSync('', bcrypt.genSaltSync(10)), "Shouldn't throw an Error.");
+ assert.throws(function() {bcrypt.hashSync('password', '')}, "Should have thrown an Error related to the salt.");
+ assert.throws(function() {bcrypt.hashSync('', '')}, "Should have thrown an Error related to the salt.");
+ assert.done();
+ },
+ test_hash_pw_no_params: function(assert) {
+ assert.throws(function() {bcrypt.hashSync();}, "Should throw an Error. No Params.");
+ assert.done();
+ },
+ test_hash_pw_one_param: function(assert) {
+ assert.throws(function() {bcrypt.hashSync('password');}, "Should throw an Error. No salt.");
+ assert.done();
+ },
+ test_hash_pw_not_hash_str: function(assert) {
+ assert.throws(function() {bcrypt.hashSync('password', {});}, "Should throw an Error. hash should be a string or number.");
+ assert.done();
+ },
+ test_hash_salt_validity: function(assert) {
+ assert.expect(2);
+ assert.ok(bcrypt.hashSync('password', '$2a$10$somesaltyvaluertsetrse'));
+ assert.throws(function() {
+ bcrypt.hashSync('password', 'some$value');
+ });
+ assert.done();
+ },
+ test_verify_salt: function(assert) {
+ var salt = bcrypt.genSaltSync(10);
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '10');
+ assert.done();
+ },
+ test_verify_salt_min_rounds: function(assert) {
+ var salt = bcrypt.genSaltSync(1);
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '04');
+ assert.done();
+ },
+ test_verify_salt_max_rounds: function(assert) {
+ var salt = bcrypt.genSaltSync(100);
+ var split_salt = salt.split('$');
+ assert.strictEqual(split_salt[1], '2b');
+ assert.strictEqual(split_salt[2], '31');
+ assert.done();
+ },
+ test_hash_compare: function(assert) {
+ var salt = bcrypt.genSaltSync(10);
+ assert.strictEqual(29, salt.length, "Salt isn't the correct length.");
+ var hash = bcrypt.hashSync("test", salt);
+ assert.ok(bcrypt.compareSync("test", hash), "These hashes should be equal.");
+ assert.ok(!(bcrypt.compareSync("blah", hash)), "These hashes should not be equal.");
+ assert.done();
+ },
+ test_hash_compare_empty_strings: function(assert) {
+ assert.ok(!(bcrypt.compareSync("", "password")), "These hashes should not be equal.");
+ assert.ok(!(bcrypt.compareSync("", "")), "These hashes should not be equal.");
+ assert.ok(!(bcrypt.compareSync("password", "")), "These hashes should not be equal.");
+ assert.done();
+ },
+ test_hash_compare_invalid_strings: function(assert) {
+ var fullString = 'envy1362987212538';
+ var hash = '$2a$10$XOPbrlUPQdwdJUpSrIF6X.LbE14qsMmKGhM1A8W9iqaG3vv1BD7WC';
+ var wut = ':';
+ bcrypt.compareSync(fullString, hash, function(err, res) {
+ assert.ok(res);
+ });
+ bcrypt.compareSync(fullString, wut, function(err, res) {
+ assert.ok(!res)
+ });
+ assert.done();
+ },
+ test_getRounds: function(assert) {
+ var hash = bcrypt.hashSync("test", bcrypt.genSaltSync(9));
+ assert.strictEqual(9, bcrypt.getRounds(hash), "getRounds can't extract rounds");
+ assert.done();
+ },
+ test_getRounds: function(assert) {
+ var hash = bcrypt.hashSync("test", bcrypt.genSaltSync(9));
+ assert.strictEqual(9, bcrypt.getRounds(hash), "getRounds can't extract rounds");
+ assert.throws(function() {bcrypt.getRounds(''); }, "Must pass a valid hash to getRounds");
+ assert.done();
+ }
+};
diff --git a/backend/node_modules/bcrypt/test_alpine.sh b/backend/node_modules/bcrypt/test_alpine.sh
new file mode 100755
index 0000000..f23af5c
--- /dev/null
+++ b/backend/node_modules/bcrypt/test_alpine.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+set -xe
+
+echo "Running on $(node -v)"
+
+apk add make g++ python
+npm test --unsafe-perm
+
+./node_modules/.bin/node-pre-gyp configure
+./node_modules/.bin/node-pre-gyp build
+./node_modules/.bin/node-pre-gyp package
diff --git a/backend/node_modules/chownr/LICENSE b/backend/node_modules/chownr/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/backend/node_modules/chownr/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/chownr/README.md b/backend/node_modules/chownr/README.md
new file mode 100644
index 0000000..70e9a54
--- /dev/null
+++ b/backend/node_modules/chownr/README.md
@@ -0,0 +1,3 @@
+Like `chown -R`.
+
+Takes the same arguments as `fs.chown()`
diff --git a/backend/node_modules/chownr/chownr.js b/backend/node_modules/chownr/chownr.js
new file mode 100644
index 0000000..0d40932
--- /dev/null
+++ b/backend/node_modules/chownr/chownr.js
@@ -0,0 +1,167 @@
+'use strict'
+const fs = require('fs')
+const path = require('path')
+
+/* istanbul ignore next */
+const LCHOWN = fs.lchown ? 'lchown' : 'chown'
+/* istanbul ignore next */
+const LCHOWNSYNC = fs.lchownSync ? 'lchownSync' : 'chownSync'
+
+/* istanbul ignore next */
+const needEISDIRHandled = fs.lchown &&
+ !process.version.match(/v1[1-9]+\./) &&
+ !process.version.match(/v10\.[6-9]/)
+
+const lchownSync = (path, uid, gid) => {
+ try {
+ return fs[LCHOWNSYNC](path, uid, gid)
+ } catch (er) {
+ if (er.code !== 'ENOENT')
+ throw er
+ }
+}
+
+/* istanbul ignore next */
+const chownSync = (path, uid, gid) => {
+ try {
+ return fs.chownSync(path, uid, gid)
+ } catch (er) {
+ if (er.code !== 'ENOENT')
+ throw er
+ }
+}
+
+/* istanbul ignore next */
+const handleEISDIR =
+ needEISDIRHandled ? (path, uid, gid, cb) => er => {
+ // Node prior to v10 had a very questionable implementation of
+ // fs.lchown, which would always try to call fs.open on a directory
+ // Fall back to fs.chown in those cases.
+ if (!er || er.code !== 'EISDIR')
+ cb(er)
+ else
+ fs.chown(path, uid, gid, cb)
+ }
+ : (_, __, ___, cb) => cb
+
+/* istanbul ignore next */
+const handleEISDirSync =
+ needEISDIRHandled ? (path, uid, gid) => {
+ try {
+ return lchownSync(path, uid, gid)
+ } catch (er) {
+ if (er.code !== 'EISDIR')
+ throw er
+ chownSync(path, uid, gid)
+ }
+ }
+ : (path, uid, gid) => lchownSync(path, uid, gid)
+
+// fs.readdir could only accept an options object as of node v6
+const nodeVersion = process.version
+let readdir = (path, options, cb) => fs.readdir(path, options, cb)
+let readdirSync = (path, options) => fs.readdirSync(path, options)
+/* istanbul ignore next */
+if (/^v4\./.test(nodeVersion))
+ readdir = (path, options, cb) => fs.readdir(path, cb)
+
+const chown = (cpath, uid, gid, cb) => {
+ fs[LCHOWN](cpath, uid, gid, handleEISDIR(cpath, uid, gid, er => {
+ // Skip ENOENT error
+ cb(er && er.code !== 'ENOENT' ? er : null)
+ }))
+}
+
+const chownrKid = (p, child, uid, gid, cb) => {
+ if (typeof child === 'string')
+ return fs.lstat(path.resolve(p, child), (er, stats) => {
+ // Skip ENOENT error
+ if (er)
+ return cb(er.code !== 'ENOENT' ? er : null)
+ stats.name = child
+ chownrKid(p, stats, uid, gid, cb)
+ })
+
+ if (child.isDirectory()) {
+ chownr(path.resolve(p, child.name), uid, gid, er => {
+ if (er)
+ return cb(er)
+ const cpath = path.resolve(p, child.name)
+ chown(cpath, uid, gid, cb)
+ })
+ } else {
+ const cpath = path.resolve(p, child.name)
+ chown(cpath, uid, gid, cb)
+ }
+}
+
+
+const chownr = (p, uid, gid, cb) => {
+ readdir(p, { withFileTypes: true }, (er, children) => {
+ // any error other than ENOTDIR or ENOTSUP means it's not readable,
+ // or doesn't exist. give up.
+ if (er) {
+ if (er.code === 'ENOENT')
+ return cb()
+ else if (er.code !== 'ENOTDIR' && er.code !== 'ENOTSUP')
+ return cb(er)
+ }
+ if (er || !children.length)
+ return chown(p, uid, gid, cb)
+
+ let len = children.length
+ let errState = null
+ const then = er => {
+ if (errState)
+ return
+ if (er)
+ return cb(errState = er)
+ if (-- len === 0)
+ return chown(p, uid, gid, cb)
+ }
+
+ children.forEach(child => chownrKid(p, child, uid, gid, then))
+ })
+}
+
+const chownrKidSync = (p, child, uid, gid) => {
+ if (typeof child === 'string') {
+ try {
+ const stats = fs.lstatSync(path.resolve(p, child))
+ stats.name = child
+ child = stats
+ } catch (er) {
+ if (er.code === 'ENOENT')
+ return
+ else
+ throw er
+ }
+ }
+
+ if (child.isDirectory())
+ chownrSync(path.resolve(p, child.name), uid, gid)
+
+ handleEISDirSync(path.resolve(p, child.name), uid, gid)
+}
+
+const chownrSync = (p, uid, gid) => {
+ let children
+ try {
+ children = readdirSync(p, { withFileTypes: true })
+ } catch (er) {
+ if (er.code === 'ENOENT')
+ return
+ else if (er.code === 'ENOTDIR' || er.code === 'ENOTSUP')
+ return handleEISDirSync(p, uid, gid)
+ else
+ throw er
+ }
+
+ if (children && children.length)
+ children.forEach(child => chownrKidSync(p, child, uid, gid))
+
+ return handleEISDirSync(p, uid, gid)
+}
+
+module.exports = chownr
+chownr.sync = chownrSync
diff --git a/backend/node_modules/chownr/package.json b/backend/node_modules/chownr/package.json
new file mode 100644
index 0000000..6106029
--- /dev/null
+++ b/backend/node_modules/chownr/package.json
@@ -0,0 +1,65 @@
+{
+ "_from": "chownr@^2.0.0",
+ "_id": "chownr@2.0.0",
+ "_inBundle": false,
+ "_integrity": "sha512-bIomtDF5KGpdogkLd9VspvFzk9KfpyyGlS8YFVZl7TGPBHL5snIOnxeshwVgPteQ9b4Eydl+pVbIyE1DcvCWgQ==",
+ "_location": "/chownr",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "chownr@^2.0.0",
+ "name": "chownr",
+ "escapedName": "chownr",
+ "rawSpec": "^2.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^2.0.0"
+ },
+ "_requiredBy": [
+ "/tar"
+ ],
+ "_resolved": "https://registry.npmjs.org/chownr/-/chownr-2.0.0.tgz",
+ "_shasum": "15bfbe53d2eab4cf70f18a8cd68ebe5b3cb1dece",
+ "_spec": "chownr@^2.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/tar",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bugs": {
+ "url": "https://github.com/isaacs/chownr/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "like `chown -R`",
+ "devDependencies": {
+ "mkdirp": "0.3",
+ "rimraf": "^2.7.1",
+ "tap": "^14.10.6"
+ },
+ "engines": {
+ "node": ">=10"
+ },
+ "files": [
+ "chownr.js"
+ ],
+ "homepage": "https://github.com/isaacs/chownr#readme",
+ "license": "ISC",
+ "main": "chownr.js",
+ "name": "chownr",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/isaacs/chownr.git"
+ },
+ "scripts": {
+ "postversion": "npm publish",
+ "prepublishOnly": "git push origin --follow-tags",
+ "preversion": "npm test",
+ "test": "tap"
+ },
+ "tap": {
+ "check-coverage": true
+ },
+ "version": "2.0.0"
+}
diff --git a/backend/node_modules/color-support/LICENSE b/backend/node_modules/color-support/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/backend/node_modules/color-support/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/color-support/README.md b/backend/node_modules/color-support/README.md
new file mode 100644
index 0000000..f89aa17
--- /dev/null
+++ b/backend/node_modules/color-support/README.md
@@ -0,0 +1,129 @@
+# color-support
+
+A module which will endeavor to guess your terminal's level of color
+support.
+
+[](https://travis-ci.org/isaacs/color-support) [](https://coveralls.io/github/isaacs/color-support?branch=master)
+
+This is similar to `supports-color`, but it does not read
+`process.argv`.
+
+1. If not in a node environment, not supported.
+
+2. If stdout is not a TTY, not supported, unless the `ignoreTTY`
+ option is set.
+
+3. If the `TERM` environ is `dumb`, not supported, unless the
+ `ignoreDumb` option is set.
+
+4. If on Windows, then support 16 colors.
+
+5. If using Tmux, then support 256 colors.
+
+7. Handle continuous-integration servers. If `CI` or
+ `TEAMCITY_VERSION` are set in the environment, and `TRAVIS` is not
+ set, then color is not supported, unless `ignoreCI` option is set.
+
+6. Guess based on the `TERM_PROGRAM` environ. These terminals support
+ 16m colors:
+
+ - `iTerm.app` version 3.x supports 16m colors, below support 256
+ - `MacTerm` supports 16m colors
+ - `Apple_Terminal` supports 256 colors
+ - Have more things that belong on this list? Send a PR!
+
+8. Make a guess based on the `TERM` environment variable. Any
+ `xterm-256color` will get 256 colors. Any screen, xterm, vt100,
+ color, ansi, cygwin, or linux `TERM` will get 16 colors.
+
+9. If `COLORTERM` environment variable is set, then support 16 colors.
+
+10. At this point, we assume that color is not supported.
+
+## USAGE
+
+```javascript
+var testColorSupport = require('color-support')
+var colorSupport = testColorSupport(/* options object */)
+
+if (!colorSupport) {
+ console.log('color is not supported')
+} else if (colorSupport.has16m) {
+ console.log('\x1b[38;2;102;194;255m16m colors\x1b[0m')
+} else if (colorSupport.has256) {
+ console.log('\x1b[38;5;119m256 colors\x1b[0m')
+} else if (colorSupport.hasBasic) {
+ console.log('\x1b[31mbasic colors\x1b[0m')
+} else {
+ console.log('this is impossible, but colors are not supported')
+}
+```
+
+If you don't have any options to set, you can also just look at the
+flags which will all be set on the test function itself. (Of course,
+this doesn't return a falsey value when colors aren't supported, and
+doesn't allow you to set options.)
+
+```javascript
+var colorSupport = require('color-support')
+
+if (colorSupport.has16m) {
+ console.log('\x1b[38;2;102;194;255m16m colors\x1b[0m')
+} else if (colorSupport.has256) {
+ console.log('\x1b[38;5;119m256 colors\x1b[0m')
+} else if (colorSupport.hasBasic) {
+ console.log('\x1b[31mbasic colors\x1b[0m')
+} else {
+ console.log('colors are not supported')
+}
+```
+
+## Options
+
+You can pass in the following options.
+
+* ignoreTTY - default false. Ignore the `isTTY` check.
+* ignoreDumb - default false. Ignore `TERM=dumb` environ check.
+* ignoreCI - default false. Ignore `CI` environ check.
+* env - Object for environment vars. Defaults to `process.env`.
+* stream - Stream for `isTTY` check. Defaults to `process.stdout`.
+* term - String for `TERM` checking. Defaults to `env.TERM`.
+* alwaysReturn - default false. Return an object when colors aren't
+ supported (instead of returning `false`).
+* level - A number from 0 to 3. This will return a result for the
+ specified level. This is useful if you want to be able to set the
+ color support level explicitly as a number in an environment
+ variable or config, but then use the object flags in your program.
+ Except for `alwaysReturn` to return an object for level 0, all other
+ options are ignored, since no checking is done if a level is
+ explicitly set.
+
+## Return Value
+
+If no color support is available, then `false` is returned by default,
+unless the `alwaysReturn` flag is set to `true`. This is so that the
+simple question of "can I use colors or not" can treat any truthy
+return as "yes".
+
+Otherwise, the return object has the following fields:
+
+* `level` - A number from 0 to 3
+ * `0` - No color support
+ * `1` - Basic (16) color support
+ * `2` - 256 color support
+ * `3` - 16 million (true) color support
+* `hasBasic` - Boolean
+* `has256` - Boolean
+* `has16m` - Boolean
+
+## CLI
+
+You can run the `color-support` bin from the command line which will
+just dump the values as this module calculates them in whatever env
+it's run. It takes no command line arguments.
+
+## Credits
+
+This is a spiritual, if not actual, fork of
+[supports-color](http://npm.im/supports-color) by the ever prolific
+[Sindre Sorhus](http://npm.im/~sindresorhus).
diff --git a/backend/node_modules/color-support/bin.js b/backend/node_modules/color-support/bin.js
new file mode 100755
index 0000000..3c0a967
--- /dev/null
+++ b/backend/node_modules/color-support/bin.js
@@ -0,0 +1,3 @@
+#!/usr/bin/env node
+var colorSupport = require('./')({alwaysReturn: true })
+console.log(JSON.stringify(colorSupport, null, 2))
diff --git a/backend/node_modules/color-support/browser.js b/backend/node_modules/color-support/browser.js
new file mode 100644
index 0000000..ab5c663
--- /dev/null
+++ b/backend/node_modules/color-support/browser.js
@@ -0,0 +1,14 @@
+module.exports = colorSupport({ alwaysReturn: true }, colorSupport)
+
+function colorSupport(options, obj) {
+ obj = obj || {}
+ options = options || {}
+ obj.level = 0
+ obj.hasBasic = false
+ obj.has256 = false
+ obj.has16m = false
+ if (!options.alwaysReturn) {
+ return false
+ }
+ return obj
+}
diff --git a/backend/node_modules/color-support/index.js b/backend/node_modules/color-support/index.js
new file mode 100644
index 0000000..6b6f3b2
--- /dev/null
+++ b/backend/node_modules/color-support/index.js
@@ -0,0 +1,134 @@
+// call it on itself so we can test the export val for basic stuff
+module.exports = colorSupport({ alwaysReturn: true }, colorSupport)
+
+function hasNone (obj, options) {
+ obj.level = 0
+ obj.hasBasic = false
+ obj.has256 = false
+ obj.has16m = false
+ if (!options.alwaysReturn) {
+ return false
+ }
+ return obj
+}
+
+function hasBasic (obj) {
+ obj.hasBasic = true
+ obj.has256 = false
+ obj.has16m = false
+ obj.level = 1
+ return obj
+}
+
+function has256 (obj) {
+ obj.hasBasic = true
+ obj.has256 = true
+ obj.has16m = false
+ obj.level = 2
+ return obj
+}
+
+function has16m (obj) {
+ obj.hasBasic = true
+ obj.has256 = true
+ obj.has16m = true
+ obj.level = 3
+ return obj
+}
+
+function colorSupport (options, obj) {
+ options = options || {}
+
+ obj = obj || {}
+
+ // if just requesting a specific level, then return that.
+ if (typeof options.level === 'number') {
+ switch (options.level) {
+ case 0:
+ return hasNone(obj, options)
+ case 1:
+ return hasBasic(obj)
+ case 2:
+ return has256(obj)
+ case 3:
+ return has16m(obj)
+ }
+ }
+
+ obj.level = 0
+ obj.hasBasic = false
+ obj.has256 = false
+ obj.has16m = false
+
+ if (typeof process === 'undefined' ||
+ !process ||
+ !process.stdout ||
+ !process.env ||
+ !process.platform) {
+ return hasNone(obj, options)
+ }
+
+ var env = options.env || process.env
+ var stream = options.stream || process.stdout
+ var term = options.term || env.TERM || ''
+ var platform = options.platform || process.platform
+
+ if (!options.ignoreTTY && !stream.isTTY) {
+ return hasNone(obj, options)
+ }
+
+ if (!options.ignoreDumb && term === 'dumb' && !env.COLORTERM) {
+ return hasNone(obj, options)
+ }
+
+ if (platform === 'win32') {
+ return hasBasic(obj)
+ }
+
+ if (env.TMUX) {
+ return has256(obj)
+ }
+
+ if (!options.ignoreCI && (env.CI || env.TEAMCITY_VERSION)) {
+ if (env.TRAVIS) {
+ return has256(obj)
+ } else {
+ return hasNone(obj, options)
+ }
+ }
+
+ // TODO: add more term programs
+ switch (env.TERM_PROGRAM) {
+ case 'iTerm.app':
+ var ver = env.TERM_PROGRAM_VERSION || '0.'
+ if (/^[0-2]\./.test(ver)) {
+ return has256(obj)
+ } else {
+ return has16m(obj)
+ }
+
+ case 'HyperTerm':
+ case 'Hyper':
+ return has16m(obj)
+
+ case 'MacTerm':
+ return has16m(obj)
+
+ case 'Apple_Terminal':
+ return has256(obj)
+ }
+
+ if (/^xterm-256/.test(term)) {
+ return has256(obj)
+ }
+
+ if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(term)) {
+ return hasBasic(obj)
+ }
+
+ if (env.COLORTERM) {
+ return hasBasic(obj)
+ }
+
+ return hasNone(obj, options)
+}
diff --git a/backend/node_modules/color-support/package.json b/backend/node_modules/color-support/package.json
new file mode 100644
index 0000000..0e9913e
--- /dev/null
+++ b/backend/node_modules/color-support/package.json
@@ -0,0 +1,71 @@
+{
+ "_from": "color-support@^1.1.2",
+ "_id": "color-support@1.1.3",
+ "_inBundle": false,
+ "_integrity": "sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg==",
+ "_location": "/color-support",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "color-support@^1.1.2",
+ "name": "color-support",
+ "escapedName": "color-support",
+ "rawSpec": "^1.1.2",
+ "saveSpec": null,
+ "fetchSpec": "^1.1.2"
+ },
+ "_requiredBy": [
+ "/gauge"
+ ],
+ "_resolved": "https://registry.npmjs.org/color-support/-/color-support-1.1.3.tgz",
+ "_shasum": "93834379a1cc9a0c61f82f52f0d04322251bd5a2",
+ "_spec": "color-support@^1.1.2",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/gauge",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bin": {
+ "color-support": "bin.js"
+ },
+ "browser": "browser.js",
+ "bugs": {
+ "url": "https://github.com/isaacs/color-support/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "A module which will endeavor to guess your terminal's level of color support.",
+ "devDependencies": {
+ "tap": "^10.3.3"
+ },
+ "files": [
+ "browser.js",
+ "index.js",
+ "bin.js"
+ ],
+ "homepage": "https://github.com/isaacs/color-support#readme",
+ "keywords": [
+ "terminal",
+ "color",
+ "support",
+ "xterm",
+ "truecolor",
+ "256"
+ ],
+ "license": "ISC",
+ "main": "index.js",
+ "name": "color-support",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/isaacs/color-support.git"
+ },
+ "scripts": {
+ "postpublish": "git push origin --all; git push origin --tags",
+ "postversion": "npm publish",
+ "preversion": "npm test",
+ "test": "tap test/*.js --100 -J"
+ },
+ "version": "1.1.3"
+}
diff --git a/backend/node_modules/console-control-strings/LICENSE b/backend/node_modules/console-control-strings/LICENSE
new file mode 100644
index 0000000..e756052
--- /dev/null
+++ b/backend/node_modules/console-control-strings/LICENSE
@@ -0,0 +1,13 @@
+Copyright (c) 2014, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/console-control-strings/README.md b/backend/node_modules/console-control-strings/README.md
new file mode 100644
index 0000000..f58cc8d
--- /dev/null
+++ b/backend/node_modules/console-control-strings/README.md
@@ -0,0 +1,145 @@
+# Console Control Strings
+
+A library of cross-platform tested terminal/console command strings for
+doing things like color and cursor positioning. This is a subset of both
+ansi and vt100. All control codes included work on both Windows & Unix-like
+OSes, except where noted.
+
+## Usage
+
+```js
+var consoleControl = require('console-control-strings')
+
+console.log(consoleControl.color('blue','bgRed', 'bold') + 'hi there' + consoleControl.color('reset'))
+process.stdout.write(consoleControl.goto(75, 10))
+```
+
+## Why Another?
+
+There are tons of libraries similar to this one. I wanted one that was:
+
+1. Very clear about compatibility goals.
+2. Could emit, for instance, a start color code without an end one.
+3. Returned strings w/o writing to streams.
+4. Was not weighed down with other unrelated baggage.
+
+## Functions
+
+### var code = consoleControl.up(_num = 1_)
+
+Returns the escape sequence to move _num_ lines up.
+
+### var code = consoleControl.down(_num = 1_)
+
+Returns the escape sequence to move _num_ lines down.
+
+### var code = consoleControl.forward(_num = 1_)
+
+Returns the escape sequence to move _num_ lines righ.
+
+### var code = consoleControl.back(_num = 1_)
+
+Returns the escape sequence to move _num_ lines left.
+
+### var code = consoleControl.nextLine(_num = 1_)
+
+Returns the escape sequence to move _num_ lines down and to the beginning of
+the line.
+
+### var code = consoleControl.previousLine(_num = 1_)
+
+Returns the escape sequence to move _num_ lines up and to the beginning of
+the line.
+
+### var code = consoleControl.eraseData()
+
+Returns the escape sequence to erase everything from the current cursor
+position to the bottom right of the screen. This is line based, so it
+erases the remainder of the current line and all following lines.
+
+### var code = consoleControl.eraseLine()
+
+Returns the escape sequence to erase to the end of the current line.
+
+### var code = consoleControl.goto(_x_, _y_)
+
+Returns the escape sequence to move the cursor to the designated position.
+Note that the origin is _1, 1_ not _0, 0_.
+
+### var code = consoleControl.gotoSOL()
+
+Returns the escape sequence to move the cursor to the beginning of the
+current line. (That is, it returns a carriage return, `\r`.)
+
+### var code = consoleControl.beep()
+
+Returns the escape sequence to cause the termianl to beep. (That is, it
+returns unicode character `\x0007`, a Control-G.)
+
+### var code = consoleControl.hideCursor()
+
+Returns the escape sequence to hide the cursor.
+
+### var code = consoleControl.showCursor()
+
+Returns the escape sequence to show the cursor.
+
+### var code = consoleControl.color(_colors = []_)
+
+### var code = consoleControl.color(_color1_, _color2_, _…_, _colorn_)
+
+Returns the escape sequence to set the current terminal display attributes
+(mostly colors). Arguments can either be a list of attributes or an array
+of attributes. The difference between passing in an array or list of colors
+and calling `.color` separately for each one, is that in the former case a
+single escape sequence will be produced where as in the latter each change
+will have its own distinct escape sequence. Each attribute can be one of:
+
+* Reset:
+ * **reset** – Reset all attributes to the terminal default.
+* Styles:
+ * **bold** – Display text as bold. In some terminals this means using a
+ bold font, in others this means changing the color. In some it means
+ both.
+ * **italic** – Display text as italic. This is not available in most Windows terminals.
+ * **underline** – Underline text. This is not available in most Windows Terminals.
+ * **inverse** – Invert the foreground and background colors.
+ * **stopBold** – Do not display text as bold.
+ * **stopItalic** – Do not display text as italic.
+ * **stopUnderline** – Do not underline text.
+ * **stopInverse** – Do not invert foreground and background.
+* Colors:
+ * **white**
+ * **black**
+ * **blue**
+ * **cyan**
+ * **green**
+ * **magenta**
+ * **red**
+ * **yellow**
+ * **grey** / **brightBlack**
+ * **brightRed**
+ * **brightGreen**
+ * **brightYellow**
+ * **brightBlue**
+ * **brightMagenta**
+ * **brightCyan**
+ * **brightWhite**
+* Background Colors:
+ * **bgWhite**
+ * **bgBlack**
+ * **bgBlue**
+ * **bgCyan**
+ * **bgGreen**
+ * **bgMagenta**
+ * **bgRed**
+ * **bgYellow**
+ * **bgGrey** / **bgBrightBlack**
+ * **bgBrightRed**
+ * **bgBrightGreen**
+ * **bgBrightYellow**
+ * **bgBrightBlue**
+ * **bgBrightMagenta**
+ * **bgBrightCyan**
+ * **bgBrightWhite**
+
diff --git a/backend/node_modules/console-control-strings/README.md~ b/backend/node_modules/console-control-strings/README.md~
new file mode 100644
index 0000000..6eb34e8
--- /dev/null
+++ b/backend/node_modules/console-control-strings/README.md~
@@ -0,0 +1,140 @@
+# Console Control Strings
+
+A library of cross-platform tested terminal/console command strings for
+doing things like color and cursor positioning. This is a subset of both
+ansi and vt100. All control codes included work on both Windows & Unix-like
+OSes, except where noted.
+
+## Usage
+
+```js
+var consoleControl = require('console-control-strings')
+
+console.log(consoleControl.color('blue','bgRed', 'bold') + 'hi there' + consoleControl.color('reset'))
+process.stdout.write(consoleControl.goto(75, 10))
+```
+
+## Why Another?
+
+There are tons of libraries similar to this one. I wanted one that was:
+
+1. Very clear about compatibility goals.
+2. Could emit, for instance, a start color code without an end one.
+3. Returned strings w/o writing to streams.
+4. Was not weighed down with other unrelated baggage.
+
+## Functions
+
+### var code = consoleControl.up(_num = 1_)
+
+Returns the escape sequence to move _num_ lines up.
+
+### var code = consoleControl.down(_num = 1_)
+
+Returns the escape sequence to move _num_ lines down.
+
+### var code = consoleControl.forward(_num = 1_)
+
+Returns the escape sequence to move _num_ lines righ.
+
+### var code = consoleControl.back(_num = 1_)
+
+Returns the escape sequence to move _num_ lines left.
+
+### var code = consoleControl.nextLine(_num = 1_)
+
+Returns the escape sequence to move _num_ lines down and to the beginning of
+the line.
+
+### var code = consoleControl.previousLine(_num = 1_)
+
+Returns the escape sequence to move _num_ lines up and to the beginning of
+the line.
+
+### var code = consoleControl.eraseData()
+
+Returns the escape sequence to erase everything from the current cursor
+position to the bottom right of the screen. This is line based, so it
+erases the remainder of the current line and all following lines.
+
+### var code = consoleControl.eraseLine()
+
+Returns the escape sequence to erase to the end of the current line.
+
+### var code = consoleControl.goto(_x_, _y_)
+
+Returns the escape sequence to move the cursor to the designated position.
+Note that the origin is _1, 1_ not _0, 0_.
+
+### var code = consoleControl.gotoSOL()
+
+Returns the escape sequence to move the cursor to the beginning of the
+current line. (That is, it returns a carriage return, `\r`.)
+
+### var code = consoleControl.hideCursor()
+
+Returns the escape sequence to hide the cursor.
+
+### var code = consoleControl.showCursor()
+
+Returns the escape sequence to show the cursor.
+
+### var code = consoleControl.color(_colors = []_)
+
+### var code = consoleControl.color(_color1_, _color2_, _…_, _colorn_)
+
+Returns the escape sequence to set the current terminal display attributes
+(mostly colors). Arguments can either be a list of attributes or an array
+of attributes. The difference between passing in an array or list of colors
+and calling `.color` separately for each one, is that in the former case a
+single escape sequence will be produced where as in the latter each change
+will have its own distinct escape sequence. Each attribute can be one of:
+
+* Reset:
+ * **reset** – Reset all attributes to the terminal default.
+* Styles:
+ * **bold** – Display text as bold. In some terminals this means using a
+ bold font, in others this means changing the color. In some it means
+ both.
+ * **italic** – Display text as italic. This is not available in most Windows terminals.
+ * **underline** – Underline text. This is not available in most Windows Terminals.
+ * **inverse** – Invert the foreground and background colors.
+ * **stopBold** – Do not display text as bold.
+ * **stopItalic** – Do not display text as italic.
+ * **stopUnderline** – Do not underline text.
+ * **stopInverse** – Do not invert foreground and background.
+* Colors:
+ * **white**
+ * **black**
+ * **blue**
+ * **cyan**
+ * **green**
+ * **magenta**
+ * **red**
+ * **yellow**
+ * **grey** / **brightBlack**
+ * **brightRed**
+ * **brightGreen**
+ * **brightYellow**
+ * **brightBlue**
+ * **brightMagenta**
+ * **brightCyan**
+ * **brightWhite**
+* Background Colors:
+ * **bgWhite**
+ * **bgBlack**
+ * **bgBlue**
+ * **bgCyan**
+ * **bgGreen**
+ * **bgMagenta**
+ * **bgRed**
+ * **bgYellow**
+ * **bgGrey** / **bgBrightBlack**
+ * **bgBrightRed**
+ * **bgBrightGreen**
+ * **bgBrightYellow**
+ * **bgBrightBlue**
+ * **bgBrightMagenta**
+ * **bgBrightCyan**
+ * **bgBrightWhite**
+
diff --git a/backend/node_modules/console-control-strings/index.js b/backend/node_modules/console-control-strings/index.js
new file mode 100644
index 0000000..bf89034
--- /dev/null
+++ b/backend/node_modules/console-control-strings/index.js
@@ -0,0 +1,125 @@
+'use strict'
+
+// These tables borrowed from `ansi`
+
+var prefix = '\x1b['
+
+exports.up = function up (num) {
+ return prefix + (num || '') + 'A'
+}
+
+exports.down = function down (num) {
+ return prefix + (num || '') + 'B'
+}
+
+exports.forward = function forward (num) {
+ return prefix + (num || '') + 'C'
+}
+
+exports.back = function back (num) {
+ return prefix + (num || '') + 'D'
+}
+
+exports.nextLine = function nextLine (num) {
+ return prefix + (num || '') + 'E'
+}
+
+exports.previousLine = function previousLine (num) {
+ return prefix + (num || '') + 'F'
+}
+
+exports.horizontalAbsolute = function horizontalAbsolute (num) {
+ if (num == null) throw new Error('horizontalAboslute requires a column to position to')
+ return prefix + num + 'G'
+}
+
+exports.eraseData = function eraseData () {
+ return prefix + 'J'
+}
+
+exports.eraseLine = function eraseLine () {
+ return prefix + 'K'
+}
+
+exports.goto = function (x, y) {
+ return prefix + y + ';' + x + 'H'
+}
+
+exports.gotoSOL = function () {
+ return '\r'
+}
+
+exports.beep = function () {
+ return '\x07'
+}
+
+exports.hideCursor = function hideCursor () {
+ return prefix + '?25l'
+}
+
+exports.showCursor = function showCursor () {
+ return prefix + '?25h'
+}
+
+var colors = {
+ reset: 0,
+// styles
+ bold: 1,
+ italic: 3,
+ underline: 4,
+ inverse: 7,
+// resets
+ stopBold: 22,
+ stopItalic: 23,
+ stopUnderline: 24,
+ stopInverse: 27,
+// colors
+ white: 37,
+ black: 30,
+ blue: 34,
+ cyan: 36,
+ green: 32,
+ magenta: 35,
+ red: 31,
+ yellow: 33,
+ bgWhite: 47,
+ bgBlack: 40,
+ bgBlue: 44,
+ bgCyan: 46,
+ bgGreen: 42,
+ bgMagenta: 45,
+ bgRed: 41,
+ bgYellow: 43,
+
+ grey: 90,
+ brightBlack: 90,
+ brightRed: 91,
+ brightGreen: 92,
+ brightYellow: 93,
+ brightBlue: 94,
+ brightMagenta: 95,
+ brightCyan: 96,
+ brightWhite: 97,
+
+ bgGrey: 100,
+ bgBrightBlack: 100,
+ bgBrightRed: 101,
+ bgBrightGreen: 102,
+ bgBrightYellow: 103,
+ bgBrightBlue: 104,
+ bgBrightMagenta: 105,
+ bgBrightCyan: 106,
+ bgBrightWhite: 107
+}
+
+exports.color = function color (colorWith) {
+ if (arguments.length !== 1 || !Array.isArray(colorWith)) {
+ colorWith = Array.prototype.slice.call(arguments)
+ }
+ return prefix + colorWith.map(colorNameToCode).join(';') + 'm'
+}
+
+function colorNameToCode (color) {
+ if (colors[color] != null) return colors[color]
+ throw new Error('Unknown color or style name: ' + color)
+}
diff --git a/backend/node_modules/console-control-strings/package.json b/backend/node_modules/console-control-strings/package.json
new file mode 100644
index 0000000..6cfdd74
--- /dev/null
+++ b/backend/node_modules/console-control-strings/package.json
@@ -0,0 +1,61 @@
+{
+ "_from": "console-control-strings@^1.1.0",
+ "_id": "console-control-strings@1.1.0",
+ "_inBundle": false,
+ "_integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
+ "_location": "/console-control-strings",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "console-control-strings@^1.1.0",
+ "name": "console-control-strings",
+ "escapedName": "console-control-strings",
+ "rawSpec": "^1.1.0",
+ "saveSpec": null,
+ "fetchSpec": "^1.1.0"
+ },
+ "_requiredBy": [
+ "/gauge",
+ "/npmlog"
+ ],
+ "_resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
+ "_shasum": "3d7cf4464db6446ea644bf4b39507f9851008e8e",
+ "_spec": "console-control-strings@^1.1.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/npmlog",
+ "author": {
+ "name": "Rebecca Turner",
+ "email": "me@re-becca.org",
+ "url": "http://re-becca.org/"
+ },
+ "bugs": {
+ "url": "https://github.com/iarna/console-control-strings/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "A library of cross-platform tested terminal/console command strings for doing things like color and cursor positioning. This is a subset of both ansi and vt100. All control codes included work on both Windows & Unix-like OSes, except where noted.",
+ "devDependencies": {
+ "standard": "^7.1.2",
+ "tap": "^5.7.2"
+ },
+ "directories": {
+ "test": "test"
+ },
+ "files": [
+ "LICENSE",
+ "index.js"
+ ],
+ "homepage": "https://github.com/iarna/console-control-strings#readme",
+ "keywords": [],
+ "license": "ISC",
+ "main": "index.js",
+ "name": "console-control-strings",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/iarna/console-control-strings.git"
+ },
+ "scripts": {
+ "test": "standard && tap test/*.js"
+ },
+ "version": "1.1.0"
+}
diff --git a/backend/node_modules/delegates/.npmignore b/backend/node_modules/delegates/.npmignore
new file mode 100644
index 0000000..c2658d7
--- /dev/null
+++ b/backend/node_modules/delegates/.npmignore
@@ -0,0 +1 @@
+node_modules/
diff --git a/backend/node_modules/delegates/History.md b/backend/node_modules/delegates/History.md
new file mode 100644
index 0000000..25959ea
--- /dev/null
+++ b/backend/node_modules/delegates/History.md
@@ -0,0 +1,22 @@
+
+1.0.0 / 2015-12-14
+==================
+
+ * Merge pull request #12 from kasicka/master
+ * Add license text
+
+0.1.0 / 2014-10-17
+==================
+
+ * adds `.fluent()` to api
+
+0.0.3 / 2014-01-13
+==================
+
+ * fix receiver for .method()
+
+0.0.2 / 2014-01-13
+==================
+
+ * Object.defineProperty() sucks
+ * Initial commit
diff --git a/backend/node_modules/delegates/License b/backend/node_modules/delegates/License
new file mode 100644
index 0000000..60de60a
--- /dev/null
+++ b/backend/node_modules/delegates/License
@@ -0,0 +1,20 @@
+Copyright (c) 2015 TJ Holowaychuk <tj@vision-media.ca>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/delegates/Makefile b/backend/node_modules/delegates/Makefile
new file mode 100644
index 0000000..a9dcfd5
--- /dev/null
+++ b/backend/node_modules/delegates/Makefile
@@ -0,0 +1,8 @@
+
+test:
+ @./node_modules/.bin/mocha \
+ --require should \
+ --reporter spec \
+ --bail
+
+.PHONY: test
\ No newline at end of file
diff --git a/backend/node_modules/delegates/Readme.md b/backend/node_modules/delegates/Readme.md
new file mode 100644
index 0000000..ab8cf4a
--- /dev/null
+++ b/backend/node_modules/delegates/Readme.md
@@ -0,0 +1,94 @@
+
+# delegates
+
+ Node method and accessor delegation utilty.
+
+## Installation
+
+```
+$ npm install delegates
+```
+
+## Example
+
+```js
+var delegate = require('delegates');
+
+...
+
+delegate(proto, 'request')
+ .method('acceptsLanguages')
+ .method('acceptsEncodings')
+ .method('acceptsCharsets')
+ .method('accepts')
+ .method('is')
+ .access('querystring')
+ .access('idempotent')
+ .access('socket')
+ .access('length')
+ .access('query')
+ .access('search')
+ .access('status')
+ .access('method')
+ .access('path')
+ .access('body')
+ .access('host')
+ .access('url')
+ .getter('subdomains')
+ .getter('protocol')
+ .getter('header')
+ .getter('stale')
+ .getter('fresh')
+ .getter('secure')
+ .getter('ips')
+ .getter('ip')
+```
+
+# API
+
+## Delegate(proto, prop)
+
+Creates a delegator instance used to configure using the `prop` on the given
+`proto` object. (which is usually a prototype)
+
+## Delegate#method(name)
+
+Allows the given method `name` to be accessed on the host.
+
+## Delegate#getter(name)
+
+Creates a "getter" for the property with the given `name` on the delegated
+object.
+
+## Delegate#setter(name)
+
+Creates a "setter" for the property with the given `name` on the delegated
+object.
+
+## Delegate#access(name)
+
+Creates an "accessor" (ie: both getter *and* setter) for the property with the
+given `name` on the delegated object.
+
+## Delegate#fluent(name)
+
+A unique type of "accessor" that works for a "fluent" API. When called as a
+getter, the method returns the expected value. However, if the method is called
+with a value, it will return itself so it can be chained. For example:
+
+```js
+delegate(proto, 'request')
+ .fluent('query')
+
+// getter
+var q = request.query();
+
+// setter (chainable)
+request
+ .query({ a: 1 })
+ .query({ b: 2 });
+```
+
+# License
+
+ MIT
diff --git a/backend/node_modules/delegates/index.js b/backend/node_modules/delegates/index.js
new file mode 100644
index 0000000..17c222d
--- /dev/null
+++ b/backend/node_modules/delegates/index.js
@@ -0,0 +1,121 @@
+
+/**
+ * Expose `Delegator`.
+ */
+
+module.exports = Delegator;
+
+/**
+ * Initialize a delegator.
+ *
+ * @param {Object} proto
+ * @param {String} target
+ * @api public
+ */
+
+function Delegator(proto, target) {
+ if (!(this instanceof Delegator)) return new Delegator(proto, target);
+ this.proto = proto;
+ this.target = target;
+ this.methods = [];
+ this.getters = [];
+ this.setters = [];
+ this.fluents = [];
+}
+
+/**
+ * Delegate method `name`.
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.method = function(name){
+ var proto = this.proto;
+ var target = this.target;
+ this.methods.push(name);
+
+ proto[name] = function(){
+ return this[target][name].apply(this[target], arguments);
+ };
+
+ return this;
+};
+
+/**
+ * Delegator accessor `name`.
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.access = function(name){
+ return this.getter(name).setter(name);
+};
+
+/**
+ * Delegator getter `name`.
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.getter = function(name){
+ var proto = this.proto;
+ var target = this.target;
+ this.getters.push(name);
+
+ proto.__defineGetter__(name, function(){
+ return this[target][name];
+ });
+
+ return this;
+};
+
+/**
+ * Delegator setter `name`.
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.setter = function(name){
+ var proto = this.proto;
+ var target = this.target;
+ this.setters.push(name);
+
+ proto.__defineSetter__(name, function(val){
+ return this[target][name] = val;
+ });
+
+ return this;
+};
+
+/**
+ * Delegator fluent accessor
+ *
+ * @param {String} name
+ * @return {Delegator} self
+ * @api public
+ */
+
+Delegator.prototype.fluent = function (name) {
+ var proto = this.proto;
+ var target = this.target;
+ this.fluents.push(name);
+
+ proto[name] = function(val){
+ if ('undefined' != typeof val) {
+ this[target][name] = val;
+ return this;
+ } else {
+ return this[target][name];
+ }
+ };
+
+ return this;
+};
diff --git a/backend/node_modules/delegates/package.json b/backend/node_modules/delegates/package.json
new file mode 100644
index 0000000..289fd65
--- /dev/null
+++ b/backend/node_modules/delegates/package.json
@@ -0,0 +1,48 @@
+{
+ "_from": "delegates@^1.0.0",
+ "_id": "delegates@1.0.0",
+ "_inBundle": false,
+ "_integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
+ "_location": "/delegates",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "delegates@^1.0.0",
+ "name": "delegates",
+ "escapedName": "delegates",
+ "rawSpec": "^1.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^1.0.0"
+ },
+ "_requiredBy": [
+ "/are-we-there-yet"
+ ],
+ "_resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
+ "_shasum": "84c6e159b81904fdca59a0ef44cd870d31250f9a",
+ "_spec": "delegates@^1.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/are-we-there-yet",
+ "bugs": {
+ "url": "https://github.com/visionmedia/node-delegates/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {},
+ "deprecated": false,
+ "description": "delegate methods and accessors to another property",
+ "devDependencies": {
+ "mocha": "*",
+ "should": "*"
+ },
+ "homepage": "https://github.com/visionmedia/node-delegates#readme",
+ "keywords": [
+ "delegate",
+ "delegation"
+ ],
+ "license": "MIT",
+ "name": "delegates",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/visionmedia/node-delegates.git"
+ },
+ "version": "1.0.0"
+}
diff --git a/backend/node_modules/delegates/test/index.js b/backend/node_modules/delegates/test/index.js
new file mode 100644
index 0000000..7b6e3d4
--- /dev/null
+++ b/backend/node_modules/delegates/test/index.js
@@ -0,0 +1,94 @@
+
+var assert = require('assert');
+var delegate = require('..');
+
+describe('.method(name)', function(){
+ it('should delegate methods', function(){
+ var obj = {};
+
+ obj.request = {
+ foo: function(bar){
+ assert(this == obj.request);
+ return bar;
+ }
+ };
+
+ delegate(obj, 'request').method('foo');
+
+ obj.foo('something').should.equal('something');
+ })
+})
+
+describe('.getter(name)', function(){
+ it('should delegate getters', function(){
+ var obj = {};
+
+ obj.request = {
+ get type() {
+ return 'text/html';
+ }
+ }
+
+ delegate(obj, 'request').getter('type');
+
+ obj.type.should.equal('text/html');
+ })
+})
+
+describe('.setter(name)', function(){
+ it('should delegate setters', function(){
+ var obj = {};
+
+ obj.request = {
+ get type() {
+ return this._type.toUpperCase();
+ },
+
+ set type(val) {
+ this._type = val;
+ }
+ }
+
+ delegate(obj, 'request').setter('type');
+
+ obj.type = 'hey';
+ obj.request.type.should.equal('HEY');
+ })
+})
+
+describe('.access(name)', function(){
+ it('should delegate getters and setters', function(){
+ var obj = {};
+
+ obj.request = {
+ get type() {
+ return this._type.toUpperCase();
+ },
+
+ set type(val) {
+ this._type = val;
+ }
+ }
+
+ delegate(obj, 'request').access('type');
+
+ obj.type = 'hey';
+ obj.type.should.equal('HEY');
+ })
+})
+
+describe('.fluent(name)', function () {
+ it('should delegate in a fluent fashion', function () {
+ var obj = {
+ settings: {
+ env: 'development'
+ }
+ };
+
+ delegate(obj, 'settings').fluent('env');
+
+ obj.env().should.equal('development');
+ obj.env('production').should.equal(obj);
+ obj.settings.env.should.equal('production');
+ })
+})
diff --git a/backend/node_modules/detect-libc/.npmignore b/backend/node_modules/detect-libc/.npmignore
new file mode 100644
index 0000000..8fc0e8d
--- /dev/null
+++ b/backend/node_modules/detect-libc/.npmignore
@@ -0,0 +1,7 @@
+.nyc_output
+.travis.yml
+coverage
+test.js
+node_modules
+/.circleci
+/tests/integration
diff --git a/backend/node_modules/detect-libc/LICENSE b/backend/node_modules/detect-libc/LICENSE
new file mode 100644
index 0000000..8dada3e
--- /dev/null
+++ b/backend/node_modules/detect-libc/LICENSE
@@ -0,0 +1,201 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
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+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
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+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
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+ "You" (or "Your") shall mean an individual or Legal Entity
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+ "Work" shall mean the work of authorship, whether in Source or
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+ "Derivative Works" shall mean any work, whether in Source or Object
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+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
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+ "Contribution" shall mean any work of authorship, including
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
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+ 2. Grant of Copyright License. Subject to the terms and conditions of
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+ meet the following conditions:
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+ (b) You must cause any modified files to carry prominent notices
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+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
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+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
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+ 6. Trademarks. This License does not grant permission to use the trade
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+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
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+ Contributor provides its Contributions) on an "AS IS" BASIS,
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+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
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+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
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+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
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+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
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+ To apply the Apache License to your work, attach the following
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+ Copyright {yyyy} {name of copyright owner}
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
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+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
diff --git a/backend/node_modules/detect-libc/README.md b/backend/node_modules/detect-libc/README.md
new file mode 100644
index 0000000..3176357
--- /dev/null
+++ b/backend/node_modules/detect-libc/README.md
@@ -0,0 +1,78 @@
+# detect-libc
+
+Node.js module to detect the C standard library (libc) implementation
+family and version in use on a given Linux system.
+
+Provides a value suitable for use with the `LIBC` option of
+[prebuild](https://www.npmjs.com/package/prebuild),
+[prebuild-ci](https://www.npmjs.com/package/prebuild-ci) and
+[prebuild-install](https://www.npmjs.com/package/prebuild-install),
+therefore allowing build and provision of pre-compiled binaries
+for musl-based Linux e.g. Alpine as well as glibc-based.
+
+Currently supports libc detection of `glibc` and `musl`.
+
+## Install
+
+```sh
+npm install detect-libc
+```
+
+## Usage
+
+### API
+
+```js
+const { GLIBC, MUSL, family, version, isNonGlibcLinux } = require('detect-libc');
+```
+
+* `GLIBC` is a String containing the value "glibc" for comparison with `family`.
+* `MUSL` is a String containing the value "musl" for comparison with `family`.
+* `family` is a String representing the system libc family.
+* `version` is a String representing the system libc version number.
+* `isNonGlibcLinux` is a Boolean representing whether the system is a non-glibc Linux, e.g. Alpine.
+
+### detect-libc command line tool
+
+When run on a Linux system with a non-glibc libc,
+the child command will be run with the `LIBC` environment variable
+set to the relevant value.
+
+On all other platforms will run the child command as-is.
+
+The command line feature requires `spawnSync` provided by Node v0.12+.
+
+```sh
+detect-libc child-command
+```
+
+## Integrating with prebuild
+
+```json
+ "scripts": {
+ "install": "detect-libc prebuild-install || node-gyp rebuild",
+ "test": "mocha && detect-libc prebuild-ci"
+ },
+ "dependencies": {
+ "detect-libc": "^1.0.2",
+ "prebuild-install": "^2.2.0"
+ },
+ "devDependencies": {
+ "prebuild": "^6.2.1",
+ "prebuild-ci": "^2.2.3"
+ }
+```
+
+## Licence
+
+Copyright 2017 Lovell Fuller
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0.html)
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/backend/node_modules/detect-libc/bin/detect-libc.js b/backend/node_modules/detect-libc/bin/detect-libc.js
new file mode 100755
index 0000000..5486127
--- /dev/null
+++ b/backend/node_modules/detect-libc/bin/detect-libc.js
@@ -0,0 +1,18 @@
+#!/usr/bin/env node
+
+'use strict';
+
+var spawnSync = require('child_process').spawnSync;
+var libc = require('../');
+
+var spawnOptions = {
+ env: process.env,
+ shell: true,
+ stdio: 'inherit'
+};
+
+if (libc.isNonGlibcLinux) {
+ spawnOptions.env.LIBC = process.env.LIBC || libc.family;
+}
+
+process.exit(spawnSync(process.argv[2], process.argv.slice(3), spawnOptions).status);
diff --git a/backend/node_modules/detect-libc/lib/detect-libc.js b/backend/node_modules/detect-libc/lib/detect-libc.js
new file mode 100644
index 0000000..1855fe1
--- /dev/null
+++ b/backend/node_modules/detect-libc/lib/detect-libc.js
@@ -0,0 +1,92 @@
+'use strict';
+
+var platform = require('os').platform();
+var spawnSync = require('child_process').spawnSync;
+var readdirSync = require('fs').readdirSync;
+
+var GLIBC = 'glibc';
+var MUSL = 'musl';
+
+var spawnOptions = {
+ encoding: 'utf8',
+ env: process.env
+};
+
+if (!spawnSync) {
+ spawnSync = function () {
+ return { status: 126, stdout: '', stderr: '' };
+ };
+}
+
+function contains (needle) {
+ return function (haystack) {
+ return haystack.indexOf(needle) !== -1;
+ };
+}
+
+function versionFromMuslLdd (out) {
+ return out.split(/[\r\n]+/)[1].trim().split(/\s/)[1];
+}
+
+function safeReaddirSync (path) {
+ try {
+ return readdirSync(path);
+ } catch (e) {}
+ return [];
+}
+
+var family = '';
+var version = '';
+var method = '';
+
+if (platform === 'linux') {
+ // Try getconf
+ var glibc = spawnSync('getconf', ['GNU_LIBC_VERSION'], spawnOptions);
+ if (glibc.status === 0) {
+ family = GLIBC;
+ version = glibc.stdout.trim().split(' ')[1];
+ method = 'getconf';
+ } else {
+ // Try ldd
+ var ldd = spawnSync('ldd', ['--version'], spawnOptions);
+ if (ldd.status === 0 && ldd.stdout.indexOf(MUSL) !== -1) {
+ family = MUSL;
+ version = versionFromMuslLdd(ldd.stdout);
+ method = 'ldd';
+ } else if (ldd.status === 1 && ldd.stderr.indexOf(MUSL) !== -1) {
+ family = MUSL;
+ version = versionFromMuslLdd(ldd.stderr);
+ method = 'ldd';
+ } else {
+ // Try filesystem (family only)
+ var lib = safeReaddirSync('/lib');
+ if (lib.some(contains('-linux-gnu'))) {
+ family = GLIBC;
+ method = 'filesystem';
+ } else if (lib.some(contains('libc.musl-'))) {
+ family = MUSL;
+ method = 'filesystem';
+ } else if (lib.some(contains('ld-musl-'))) {
+ family = MUSL;
+ method = 'filesystem';
+ } else {
+ var usrSbin = safeReaddirSync('/usr/sbin');
+ if (usrSbin.some(contains('glibc'))) {
+ family = GLIBC;
+ method = 'filesystem';
+ }
+ }
+ }
+ }
+}
+
+var isNonGlibcLinux = (family !== '' && family !== GLIBC);
+
+module.exports = {
+ GLIBC: GLIBC,
+ MUSL: MUSL,
+ family: family,
+ version: version,
+ method: method,
+ isNonGlibcLinux: isNonGlibcLinux
+};
diff --git a/backend/node_modules/detect-libc/package.json b/backend/node_modules/detect-libc/package.json
new file mode 100644
index 0000000..5585945
--- /dev/null
+++ b/backend/node_modules/detect-libc/package.json
@@ -0,0 +1,70 @@
+{
+ "_from": "detect-libc@^1.0.3",
+ "_id": "detect-libc@1.0.3",
+ "_inBundle": false,
+ "_integrity": "sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=",
+ "_location": "/detect-libc",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "detect-libc@^1.0.3",
+ "name": "detect-libc",
+ "escapedName": "detect-libc",
+ "rawSpec": "^1.0.3",
+ "saveSpec": null,
+ "fetchSpec": "^1.0.3"
+ },
+ "_requiredBy": [
+ "/@mapbox/node-pre-gyp"
+ ],
+ "_resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-1.0.3.tgz",
+ "_shasum": "fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b",
+ "_spec": "detect-libc@^1.0.3",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/@mapbox/node-pre-gyp",
+ "author": {
+ "name": "Lovell Fuller",
+ "email": "npm@lovell.info"
+ },
+ "bin": {
+ "detect-libc": "bin/detect-libc.js"
+ },
+ "bugs": {
+ "url": "https://github.com/lovell/detect-libc/issues"
+ },
+ "bundleDependencies": false,
+ "contributors": [
+ {
+ "name": "Niklas Salmoukas",
+ "email": "niklas@salmoukas.com"
+ }
+ ],
+ "deprecated": false,
+ "description": "Node.js module to detect the C standard library (libc) implementation family and version",
+ "devDependencies": {
+ "ava": "^0.23.0",
+ "nyc": "^11.3.0",
+ "proxyquire": "^1.8.0",
+ "semistandard": "^11.0.0"
+ },
+ "engines": {
+ "node": ">=0.10"
+ },
+ "homepage": "https://github.com/lovell/detect-libc#readme",
+ "keywords": [
+ "libc",
+ "glibc",
+ "musl"
+ ],
+ "license": "Apache-2.0",
+ "main": "lib/detect-libc.js",
+ "name": "detect-libc",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/lovell/detect-libc.git"
+ },
+ "scripts": {
+ "test": "semistandard && nyc --reporter=lcov ava"
+ },
+ "version": "1.0.3"
+}
diff --git a/backend/node_modules/fs-minipass/LICENSE b/backend/node_modules/fs-minipass/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/backend/node_modules/fs-minipass/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/fs-minipass/README.md b/backend/node_modules/fs-minipass/README.md
new file mode 100644
index 0000000..1e61241
--- /dev/null
+++ b/backend/node_modules/fs-minipass/README.md
@@ -0,0 +1,70 @@
+# fs-minipass
+
+Filesystem streams based on [minipass](http://npm.im/minipass).
+
+4 classes are exported:
+
+- ReadStream
+- ReadStreamSync
+- WriteStream
+- WriteStreamSync
+
+When using `ReadStreamSync`, all of the data is made available
+immediately upon consuming the stream. Nothing is buffered in memory
+when the stream is constructed. If the stream is piped to a writer,
+then it will synchronously `read()` and emit data into the writer as
+fast as the writer can consume it. (That is, it will respect
+backpressure.) If you call `stream.read()` then it will read the
+entire file and return the contents.
+
+When using `WriteStreamSync`, every write is flushed to the file
+synchronously. If your writes all come in a single tick, then it'll
+write it all out in a single tick. It's as synchronous as you are.
+
+The async versions work much like their node builtin counterparts,
+with the exception of introducing significantly less Stream machinery
+overhead.
+
+## USAGE
+
+It's just streams, you pipe them or read() them or write() to them.
+
+```js
+const fsm = require('fs-minipass')
+const readStream = new fsm.ReadStream('file.txt')
+const writeStream = new fsm.WriteStream('output.txt')
+writeStream.write('some file header or whatever\n')
+readStream.pipe(writeStream)
+```
+
+## ReadStream(path, options)
+
+Path string is required, but somewhat irrelevant if an open file
+descriptor is passed in as an option.
+
+Options:
+
+- `fd` Pass in a numeric file descriptor, if the file is already open.
+- `readSize` The size of reads to do, defaults to 16MB
+- `size` The size of the file, if known. Prevents zero-byte read()
+ call at the end.
+- `autoClose` Set to `false` to prevent the file descriptor from being
+ closed when the file is done being read.
+
+## WriteStream(path, options)
+
+Path string is required, but somewhat irrelevant if an open file
+descriptor is passed in as an option.
+
+Options:
+
+- `fd` Pass in a numeric file descriptor, if the file is already open.
+- `mode` The mode to create the file with. Defaults to `0o666`.
+- `start` The position in the file to start reading. If not
+ specified, then the file will start writing at position zero, and be
+ truncated by default.
+- `autoClose` Set to `false` to prevent the file descriptor from being
+ closed when the stream is ended.
+- `flags` Flags to use when opening the file. Irrelevant if `fd` is
+ passed in, since file won't be opened in that case. Defaults to
+ `'a'` if a `pos` is specified, or `'w'` otherwise.
diff --git a/backend/node_modules/fs-minipass/index.js b/backend/node_modules/fs-minipass/index.js
new file mode 100644
index 0000000..9b0779c
--- /dev/null
+++ b/backend/node_modules/fs-minipass/index.js
@@ -0,0 +1,422 @@
+'use strict'
+const MiniPass = require('minipass')
+const EE = require('events').EventEmitter
+const fs = require('fs')
+
+let writev = fs.writev
+/* istanbul ignore next */
+if (!writev) {
+ // This entire block can be removed if support for earlier than Node.js
+ // 12.9.0 is not needed.
+ const binding = process.binding('fs')
+ const FSReqWrap = binding.FSReqWrap || binding.FSReqCallback
+
+ writev = (fd, iovec, pos, cb) => {
+ const done = (er, bw) => cb(er, bw, iovec)
+ const req = new FSReqWrap()
+ req.oncomplete = done
+ binding.writeBuffers(fd, iovec, pos, req)
+ }
+}
+
+const _autoClose = Symbol('_autoClose')
+const _close = Symbol('_close')
+const _ended = Symbol('_ended')
+const _fd = Symbol('_fd')
+const _finished = Symbol('_finished')
+const _flags = Symbol('_flags')
+const _flush = Symbol('_flush')
+const _handleChunk = Symbol('_handleChunk')
+const _makeBuf = Symbol('_makeBuf')
+const _mode = Symbol('_mode')
+const _needDrain = Symbol('_needDrain')
+const _onerror = Symbol('_onerror')
+const _onopen = Symbol('_onopen')
+const _onread = Symbol('_onread')
+const _onwrite = Symbol('_onwrite')
+const _open = Symbol('_open')
+const _path = Symbol('_path')
+const _pos = Symbol('_pos')
+const _queue = Symbol('_queue')
+const _read = Symbol('_read')
+const _readSize = Symbol('_readSize')
+const _reading = Symbol('_reading')
+const _remain = Symbol('_remain')
+const _size = Symbol('_size')
+const _write = Symbol('_write')
+const _writing = Symbol('_writing')
+const _defaultFlag = Symbol('_defaultFlag')
+const _errored = Symbol('_errored')
+
+class ReadStream extends MiniPass {
+ constructor (path, opt) {
+ opt = opt || {}
+ super(opt)
+
+ this.readable = true
+ this.writable = false
+
+ if (typeof path !== 'string')
+ throw new TypeError('path must be a string')
+
+ this[_errored] = false
+ this[_fd] = typeof opt.fd === 'number' ? opt.fd : null
+ this[_path] = path
+ this[_readSize] = opt.readSize || 16*1024*1024
+ this[_reading] = false
+ this[_size] = typeof opt.size === 'number' ? opt.size : Infinity
+ this[_remain] = this[_size]
+ this[_autoClose] = typeof opt.autoClose === 'boolean' ?
+ opt.autoClose : true
+
+ if (typeof this[_fd] === 'number')
+ this[_read]()
+ else
+ this[_open]()
+ }
+
+ get fd () { return this[_fd] }
+ get path () { return this[_path] }
+
+ write () {
+ throw new TypeError('this is a readable stream')
+ }
+
+ end () {
+ throw new TypeError('this is a readable stream')
+ }
+
+ [_open] () {
+ fs.open(this[_path], 'r', (er, fd) => this[_onopen](er, fd))
+ }
+
+ [_onopen] (er, fd) {
+ if (er)
+ this[_onerror](er)
+ else {
+ this[_fd] = fd
+ this.emit('open', fd)
+ this[_read]()
+ }
+ }
+
+ [_makeBuf] () {
+ return Buffer.allocUnsafe(Math.min(this[_readSize], this[_remain]))
+ }
+
+ [_read] () {
+ if (!this[_reading]) {
+ this[_reading] = true
+ const buf = this[_makeBuf]()
+ /* istanbul ignore if */
+ if (buf.length === 0)
+ return process.nextTick(() => this[_onread](null, 0, buf))
+ fs.read(this[_fd], buf, 0, buf.length, null, (er, br, buf) =>
+ this[_onread](er, br, buf))
+ }
+ }
+
+ [_onread] (er, br, buf) {
+ this[_reading] = false
+ if (er)
+ this[_onerror](er)
+ else if (this[_handleChunk](br, buf))
+ this[_read]()
+ }
+
+ [_close] () {
+ if (this[_autoClose] && typeof this[_fd] === 'number') {
+ const fd = this[_fd]
+ this[_fd] = null
+ fs.close(fd, er => er ? this.emit('error', er) : this.emit('close'))
+ }
+ }
+
+ [_onerror] (er) {
+ this[_reading] = true
+ this[_close]()
+ this.emit('error', er)
+ }
+
+ [_handleChunk] (br, buf) {
+ let ret = false
+ // no effect if infinite
+ this[_remain] -= br
+ if (br > 0)
+ ret = super.write(br < buf.length ? buf.slice(0, br) : buf)
+
+ if (br === 0 || this[_remain] <= 0) {
+ ret = false
+ this[_close]()
+ super.end()
+ }
+
+ return ret
+ }
+
+ emit (ev, data) {
+ switch (ev) {
+ case 'prefinish':
+ case 'finish':
+ break
+
+ case 'drain':
+ if (typeof this[_fd] === 'number')
+ this[_read]()
+ break
+
+ case 'error':
+ if (this[_errored])
+ return
+ this[_errored] = true
+ return super.emit(ev, data)
+
+ default:
+ return super.emit(ev, data)
+ }
+ }
+}
+
+class ReadStreamSync extends ReadStream {
+ [_open] () {
+ let threw = true
+ try {
+ this[_onopen](null, fs.openSync(this[_path], 'r'))
+ threw = false
+ } finally {
+ if (threw)
+ this[_close]()
+ }
+ }
+
+ [_read] () {
+ let threw = true
+ try {
+ if (!this[_reading]) {
+ this[_reading] = true
+ do {
+ const buf = this[_makeBuf]()
+ /* istanbul ignore next */
+ const br = buf.length === 0 ? 0
+ : fs.readSync(this[_fd], buf, 0, buf.length, null)
+ if (!this[_handleChunk](br, buf))
+ break
+ } while (true)
+ this[_reading] = false
+ }
+ threw = false
+ } finally {
+ if (threw)
+ this[_close]()
+ }
+ }
+
+ [_close] () {
+ if (this[_autoClose] && typeof this[_fd] === 'number') {
+ const fd = this[_fd]
+ this[_fd] = null
+ fs.closeSync(fd)
+ this.emit('close')
+ }
+ }
+}
+
+class WriteStream extends EE {
+ constructor (path, opt) {
+ opt = opt || {}
+ super(opt)
+ this.readable = false
+ this.writable = true
+ this[_errored] = false
+ this[_writing] = false
+ this[_ended] = false
+ this[_needDrain] = false
+ this[_queue] = []
+ this[_path] = path
+ this[_fd] = typeof opt.fd === 'number' ? opt.fd : null
+ this[_mode] = opt.mode === undefined ? 0o666 : opt.mode
+ this[_pos] = typeof opt.start === 'number' ? opt.start : null
+ this[_autoClose] = typeof opt.autoClose === 'boolean' ?
+ opt.autoClose : true
+
+ // truncating makes no sense when writing into the middle
+ const defaultFlag = this[_pos] !== null ? 'r+' : 'w'
+ this[_defaultFlag] = opt.flags === undefined
+ this[_flags] = this[_defaultFlag] ? defaultFlag : opt.flags
+
+ if (this[_fd] === null)
+ this[_open]()
+ }
+
+ emit (ev, data) {
+ if (ev === 'error') {
+ if (this[_errored])
+ return
+ this[_errored] = true
+ }
+ return super.emit(ev, data)
+ }
+
+
+ get fd () { return this[_fd] }
+ get path () { return this[_path] }
+
+ [_onerror] (er) {
+ this[_close]()
+ this[_writing] = true
+ this.emit('error', er)
+ }
+
+ [_open] () {
+ fs.open(this[_path], this[_flags], this[_mode],
+ (er, fd) => this[_onopen](er, fd))
+ }
+
+ [_onopen] (er, fd) {
+ if (this[_defaultFlag] &&
+ this[_flags] === 'r+' &&
+ er && er.code === 'ENOENT') {
+ this[_flags] = 'w'
+ this[_open]()
+ } else if (er)
+ this[_onerror](er)
+ else {
+ this[_fd] = fd
+ this.emit('open', fd)
+ this[_flush]()
+ }
+ }
+
+ end (buf, enc) {
+ if (buf)
+ this.write(buf, enc)
+
+ this[_ended] = true
+
+ // synthetic after-write logic, where drain/finish live
+ if (!this[_writing] && !this[_queue].length &&
+ typeof this[_fd] === 'number')
+ this[_onwrite](null, 0)
+ return this
+ }
+
+ write (buf, enc) {
+ if (typeof buf === 'string')
+ buf = Buffer.from(buf, enc)
+
+ if (this[_ended]) {
+ this.emit('error', new Error('write() after end()'))
+ return false
+ }
+
+ if (this[_fd] === null || this[_writing] || this[_queue].length) {
+ this[_queue].push(buf)
+ this[_needDrain] = true
+ return false
+ }
+
+ this[_writing] = true
+ this[_write](buf)
+ return true
+ }
+
+ [_write] (buf) {
+ fs.write(this[_fd], buf, 0, buf.length, this[_pos], (er, bw) =>
+ this[_onwrite](er, bw))
+ }
+
+ [_onwrite] (er, bw) {
+ if (er)
+ this[_onerror](er)
+ else {
+ if (this[_pos] !== null)
+ this[_pos] += bw
+ if (this[_queue].length)
+ this[_flush]()
+ else {
+ this[_writing] = false
+
+ if (this[_ended] && !this[_finished]) {
+ this[_finished] = true
+ this[_close]()
+ this.emit('finish')
+ } else if (this[_needDrain]) {
+ this[_needDrain] = false
+ this.emit('drain')
+ }
+ }
+ }
+ }
+
+ [_flush] () {
+ if (this[_queue].length === 0) {
+ if (this[_ended])
+ this[_onwrite](null, 0)
+ } else if (this[_queue].length === 1)
+ this[_write](this[_queue].pop())
+ else {
+ const iovec = this[_queue]
+ this[_queue] = []
+ writev(this[_fd], iovec, this[_pos],
+ (er, bw) => this[_onwrite](er, bw))
+ }
+ }
+
+ [_close] () {
+ if (this[_autoClose] && typeof this[_fd] === 'number') {
+ const fd = this[_fd]
+ this[_fd] = null
+ fs.close(fd, er => er ? this.emit('error', er) : this.emit('close'))
+ }
+ }
+}
+
+class WriteStreamSync extends WriteStream {
+ [_open] () {
+ let fd
+ // only wrap in a try{} block if we know we'll retry, to avoid
+ // the rethrow obscuring the error's source frame in most cases.
+ if (this[_defaultFlag] && this[_flags] === 'r+') {
+ try {
+ fd = fs.openSync(this[_path], this[_flags], this[_mode])
+ } catch (er) {
+ if (er.code === 'ENOENT') {
+ this[_flags] = 'w'
+ return this[_open]()
+ } else
+ throw er
+ }
+ } else
+ fd = fs.openSync(this[_path], this[_flags], this[_mode])
+
+ this[_onopen](null, fd)
+ }
+
+ [_close] () {
+ if (this[_autoClose] && typeof this[_fd] === 'number') {
+ const fd = this[_fd]
+ this[_fd] = null
+ fs.closeSync(fd)
+ this.emit('close')
+ }
+ }
+
+ [_write] (buf) {
+ // throw the original, but try to close if it fails
+ let threw = true
+ try {
+ this[_onwrite](null,
+ fs.writeSync(this[_fd], buf, 0, buf.length, this[_pos]))
+ threw = false
+ } finally {
+ if (threw)
+ try { this[_close]() } catch (_) {}
+ }
+ }
+}
+
+exports.ReadStream = ReadStream
+exports.ReadStreamSync = ReadStreamSync
+
+exports.WriteStream = WriteStream
+exports.WriteStreamSync = WriteStreamSync
diff --git a/backend/node_modules/fs-minipass/package.json b/backend/node_modules/fs-minipass/package.json
new file mode 100644
index 0000000..1714894
--- /dev/null
+++ b/backend/node_modules/fs-minipass/package.json
@@ -0,0 +1,68 @@
+{
+ "_from": "fs-minipass@^2.0.0",
+ "_id": "fs-minipass@2.1.0",
+ "_inBundle": false,
+ "_integrity": "sha512-V/JgOLFCS+R6Vcq0slCuaeWEdNC3ouDlJMNIsacH2VtALiu9mV4LPrHc5cDl8k5aw6J8jwgWWpiTo5RYhmIzvg==",
+ "_location": "/fs-minipass",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "fs-minipass@^2.0.0",
+ "name": "fs-minipass",
+ "escapedName": "fs-minipass",
+ "rawSpec": "^2.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^2.0.0"
+ },
+ "_requiredBy": [
+ "/tar"
+ ],
+ "_resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-2.1.0.tgz",
+ "_shasum": "7f5036fdbf12c63c169190cbe4199c852271f9fb",
+ "_spec": "fs-minipass@^2.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/tar",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bugs": {
+ "url": "https://github.com/npm/fs-minipass/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "minipass": "^3.0.0"
+ },
+ "deprecated": false,
+ "description": "fs read and write streams based on minipass",
+ "devDependencies": {
+ "mutate-fs": "^2.0.1",
+ "tap": "^14.6.4"
+ },
+ "engines": {
+ "node": ">= 8"
+ },
+ "files": [
+ "index.js"
+ ],
+ "homepage": "https://github.com/npm/fs-minipass#readme",
+ "keywords": [],
+ "license": "ISC",
+ "main": "index.js",
+ "name": "fs-minipass",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/npm/fs-minipass.git"
+ },
+ "scripts": {
+ "postpublish": "git push origin --follow-tags",
+ "postversion": "npm publish",
+ "preversion": "npm test",
+ "test": "tap"
+ },
+ "tap": {
+ "check-coverage": true
+ },
+ "version": "2.1.0"
+}
diff --git a/backend/node_modules/fs.realpath/LICENSE b/backend/node_modules/fs.realpath/LICENSE
new file mode 100644
index 0000000..5bd884c
--- /dev/null
+++ b/backend/node_modules/fs.realpath/LICENSE
@@ -0,0 +1,43 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+----
+
+This library bundles a version of the `fs.realpath` and `fs.realpathSync`
+methods from Node.js v0.10 under the terms of the Node.js MIT license.
+
+Node's license follows, also included at the header of `old.js` which contains
+the licensed code:
+
+ Copyright Joyent, Inc. and other Node contributors.
+
+ Permission is hereby granted, free of charge, to any person obtaining a
+ copy of this software and associated documentation files (the "Software"),
+ to deal in the Software without restriction, including without limitation
+ the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ and/or sell copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/fs.realpath/README.md b/backend/node_modules/fs.realpath/README.md
new file mode 100644
index 0000000..a42ceac
--- /dev/null
+++ b/backend/node_modules/fs.realpath/README.md
@@ -0,0 +1,33 @@
+# fs.realpath
+
+A backwards-compatible fs.realpath for Node v6 and above
+
+In Node v6, the JavaScript implementation of fs.realpath was replaced
+with a faster (but less resilient) native implementation. That raises
+new and platform-specific errors and cannot handle long or excessively
+symlink-looping paths.
+
+This module handles those cases by detecting the new errors and
+falling back to the JavaScript implementation. On versions of Node
+prior to v6, it has no effect.
+
+## USAGE
+
+```js
+var rp = require('fs.realpath')
+
+// async version
+rp.realpath(someLongAndLoopingPath, function (er, real) {
+ // the ELOOP was handled, but it was a bit slower
+})
+
+// sync version
+var real = rp.realpathSync(someLongAndLoopingPath)
+
+// monkeypatch at your own risk!
+// This replaces the fs.realpath/fs.realpathSync builtins
+rp.monkeypatch()
+
+// un-do the monkeypatching
+rp.unmonkeypatch()
+```
diff --git a/backend/node_modules/fs.realpath/index.js b/backend/node_modules/fs.realpath/index.js
new file mode 100644
index 0000000..b09c7c7
--- /dev/null
+++ b/backend/node_modules/fs.realpath/index.js
@@ -0,0 +1,66 @@
+module.exports = realpath
+realpath.realpath = realpath
+realpath.sync = realpathSync
+realpath.realpathSync = realpathSync
+realpath.monkeypatch = monkeypatch
+realpath.unmonkeypatch = unmonkeypatch
+
+var fs = require('fs')
+var origRealpath = fs.realpath
+var origRealpathSync = fs.realpathSync
+
+var version = process.version
+var ok = /^v[0-5]\./.test(version)
+var old = require('./old.js')
+
+function newError (er) {
+ return er && er.syscall === 'realpath' && (
+ er.code === 'ELOOP' ||
+ er.code === 'ENOMEM' ||
+ er.code === 'ENAMETOOLONG'
+ )
+}
+
+function realpath (p, cache, cb) {
+ if (ok) {
+ return origRealpath(p, cache, cb)
+ }
+
+ if (typeof cache === 'function') {
+ cb = cache
+ cache = null
+ }
+ origRealpath(p, cache, function (er, result) {
+ if (newError(er)) {
+ old.realpath(p, cache, cb)
+ } else {
+ cb(er, result)
+ }
+ })
+}
+
+function realpathSync (p, cache) {
+ if (ok) {
+ return origRealpathSync(p, cache)
+ }
+
+ try {
+ return origRealpathSync(p, cache)
+ } catch (er) {
+ if (newError(er)) {
+ return old.realpathSync(p, cache)
+ } else {
+ throw er
+ }
+ }
+}
+
+function monkeypatch () {
+ fs.realpath = realpath
+ fs.realpathSync = realpathSync
+}
+
+function unmonkeypatch () {
+ fs.realpath = origRealpath
+ fs.realpathSync = origRealpathSync
+}
diff --git a/backend/node_modules/fs.realpath/old.js b/backend/node_modules/fs.realpath/old.js
new file mode 100644
index 0000000..b40305e
--- /dev/null
+++ b/backend/node_modules/fs.realpath/old.js
@@ -0,0 +1,303 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var pathModule = require('path');
+var isWindows = process.platform === 'win32';
+var fs = require('fs');
+
+// JavaScript implementation of realpath, ported from node pre-v6
+
+var DEBUG = process.env.NODE_DEBUG && /fs/.test(process.env.NODE_DEBUG);
+
+function rethrow() {
+ // Only enable in debug mode. A backtrace uses ~1000 bytes of heap space and
+ // is fairly slow to generate.
+ var callback;
+ if (DEBUG) {
+ var backtrace = new Error;
+ callback = debugCallback;
+ } else
+ callback = missingCallback;
+
+ return callback;
+
+ function debugCallback(err) {
+ if (err) {
+ backtrace.message = err.message;
+ err = backtrace;
+ missingCallback(err);
+ }
+ }
+
+ function missingCallback(err) {
+ if (err) {
+ if (process.throwDeprecation)
+ throw err; // Forgot a callback but don't know where? Use NODE_DEBUG=fs
+ else if (!process.noDeprecation) {
+ var msg = 'fs: missing callback ' + (err.stack || err.message);
+ if (process.traceDeprecation)
+ console.trace(msg);
+ else
+ console.error(msg);
+ }
+ }
+ }
+}
+
+function maybeCallback(cb) {
+ return typeof cb === 'function' ? cb : rethrow();
+}
+
+var normalize = pathModule.normalize;
+
+// Regexp that finds the next partion of a (partial) path
+// result is [base_with_slash, base], e.g. ['somedir/', 'somedir']
+if (isWindows) {
+ var nextPartRe = /(.*?)(?:[\/\\]+|$)/g;
+} else {
+ var nextPartRe = /(.*?)(?:[\/]+|$)/g;
+}
+
+// Regex to find the device root, including trailing slash. E.g. 'c:\\'.
+if (isWindows) {
+ var splitRootRe = /^(?:[a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/][^\\\/]+)?[\\\/]*/;
+} else {
+ var splitRootRe = /^[\/]*/;
+}
+
+exports.realpathSync = function realpathSync(p, cache) {
+ // make p is absolute
+ p = pathModule.resolve(p);
+
+ if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
+ return cache[p];
+ }
+
+ var original = p,
+ seenLinks = {},
+ knownHard = {};
+
+ // current character position in p
+ var pos;
+ // the partial path so far, including a trailing slash if any
+ var current;
+ // the partial path without a trailing slash (except when pointing at a root)
+ var base;
+ // the partial path scanned in the previous round, with slash
+ var previous;
+
+ start();
+
+ function start() {
+ // Skip over roots
+ var m = splitRootRe.exec(p);
+ pos = m[0].length;
+ current = m[0];
+ base = m[0];
+ previous = '';
+
+ // On windows, check that the root exists. On unix there is no need.
+ if (isWindows && !knownHard[base]) {
+ fs.lstatSync(base);
+ knownHard[base] = true;
+ }
+ }
+
+ // walk down the path, swapping out linked pathparts for their real
+ // values
+ // NB: p.length changes.
+ while (pos < p.length) {
+ // find the next part
+ nextPartRe.lastIndex = pos;
+ var result = nextPartRe.exec(p);
+ previous = current;
+ current += result[0];
+ base = previous + result[1];
+ pos = nextPartRe.lastIndex;
+
+ // continue if not a symlink
+ if (knownHard[base] || (cache && cache[base] === base)) {
+ continue;
+ }
+
+ var resolvedLink;
+ if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
+ // some known symbolic link. no need to stat again.
+ resolvedLink = cache[base];
+ } else {
+ var stat = fs.lstatSync(base);
+ if (!stat.isSymbolicLink()) {
+ knownHard[base] = true;
+ if (cache) cache[base] = base;
+ continue;
+ }
+
+ // read the link if it wasn't read before
+ // dev/ino always return 0 on windows, so skip the check.
+ var linkTarget = null;
+ if (!isWindows) {
+ var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
+ if (seenLinks.hasOwnProperty(id)) {
+ linkTarget = seenLinks[id];
+ }
+ }
+ if (linkTarget === null) {
+ fs.statSync(base);
+ linkTarget = fs.readlinkSync(base);
+ }
+ resolvedLink = pathModule.resolve(previous, linkTarget);
+ // track this, if given a cache.
+ if (cache) cache[base] = resolvedLink;
+ if (!isWindows) seenLinks[id] = linkTarget;
+ }
+
+ // resolve the link, then start over
+ p = pathModule.resolve(resolvedLink, p.slice(pos));
+ start();
+ }
+
+ if (cache) cache[original] = p;
+
+ return p;
+};
+
+
+exports.realpath = function realpath(p, cache, cb) {
+ if (typeof cb !== 'function') {
+ cb = maybeCallback(cache);
+ cache = null;
+ }
+
+ // make p is absolute
+ p = pathModule.resolve(p);
+
+ if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
+ return process.nextTick(cb.bind(null, null, cache[p]));
+ }
+
+ var original = p,
+ seenLinks = {},
+ knownHard = {};
+
+ // current character position in p
+ var pos;
+ // the partial path so far, including a trailing slash if any
+ var current;
+ // the partial path without a trailing slash (except when pointing at a root)
+ var base;
+ // the partial path scanned in the previous round, with slash
+ var previous;
+
+ start();
+
+ function start() {
+ // Skip over roots
+ var m = splitRootRe.exec(p);
+ pos = m[0].length;
+ current = m[0];
+ base = m[0];
+ previous = '';
+
+ // On windows, check that the root exists. On unix there is no need.
+ if (isWindows && !knownHard[base]) {
+ fs.lstat(base, function(err) {
+ if (err) return cb(err);
+ knownHard[base] = true;
+ LOOP();
+ });
+ } else {
+ process.nextTick(LOOP);
+ }
+ }
+
+ // walk down the path, swapping out linked pathparts for their real
+ // values
+ function LOOP() {
+ // stop if scanned past end of path
+ if (pos >= p.length) {
+ if (cache) cache[original] = p;
+ return cb(null, p);
+ }
+
+ // find the next part
+ nextPartRe.lastIndex = pos;
+ var result = nextPartRe.exec(p);
+ previous = current;
+ current += result[0];
+ base = previous + result[1];
+ pos = nextPartRe.lastIndex;
+
+ // continue if not a symlink
+ if (knownHard[base] || (cache && cache[base] === base)) {
+ return process.nextTick(LOOP);
+ }
+
+ if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
+ // known symbolic link. no need to stat again.
+ return gotResolvedLink(cache[base]);
+ }
+
+ return fs.lstat(base, gotStat);
+ }
+
+ function gotStat(err, stat) {
+ if (err) return cb(err);
+
+ // if not a symlink, skip to the next path part
+ if (!stat.isSymbolicLink()) {
+ knownHard[base] = true;
+ if (cache) cache[base] = base;
+ return process.nextTick(LOOP);
+ }
+
+ // stat & read the link if not read before
+ // call gotTarget as soon as the link target is known
+ // dev/ino always return 0 on windows, so skip the check.
+ if (!isWindows) {
+ var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
+ if (seenLinks.hasOwnProperty(id)) {
+ return gotTarget(null, seenLinks[id], base);
+ }
+ }
+ fs.stat(base, function(err) {
+ if (err) return cb(err);
+
+ fs.readlink(base, function(err, target) {
+ if (!isWindows) seenLinks[id] = target;
+ gotTarget(err, target);
+ });
+ });
+ }
+
+ function gotTarget(err, target, base) {
+ if (err) return cb(err);
+
+ var resolvedLink = pathModule.resolve(previous, target);
+ if (cache) cache[base] = resolvedLink;
+ gotResolvedLink(resolvedLink);
+ }
+
+ function gotResolvedLink(resolvedLink) {
+ // resolve the link, then start over
+ p = pathModule.resolve(resolvedLink, p.slice(pos));
+ start();
+ }
+};
diff --git a/backend/node_modules/fs.realpath/package.json b/backend/node_modules/fs.realpath/package.json
new file mode 100644
index 0000000..e69eb22
--- /dev/null
+++ b/backend/node_modules/fs.realpath/package.json
@@ -0,0 +1,59 @@
+{
+ "_from": "fs.realpath@^1.0.0",
+ "_id": "fs.realpath@1.0.0",
+ "_inBundle": false,
+ "_integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
+ "_location": "/fs.realpath",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "fs.realpath@^1.0.0",
+ "name": "fs.realpath",
+ "escapedName": "fs.realpath",
+ "rawSpec": "^1.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^1.0.0"
+ },
+ "_requiredBy": [
+ "/glob"
+ ],
+ "_resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
+ "_shasum": "1504ad2523158caa40db4a2787cb01411994ea4f",
+ "_spec": "fs.realpath@^1.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/glob",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bugs": {
+ "url": "https://github.com/isaacs/fs.realpath/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {},
+ "deprecated": false,
+ "description": "Use node's fs.realpath, but fall back to the JS implementation if the native one fails",
+ "devDependencies": {},
+ "files": [
+ "old.js",
+ "index.js"
+ ],
+ "homepage": "https://github.com/isaacs/fs.realpath#readme",
+ "keywords": [
+ "realpath",
+ "fs",
+ "polyfill"
+ ],
+ "license": "ISC",
+ "main": "index.js",
+ "name": "fs.realpath",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/isaacs/fs.realpath.git"
+ },
+ "scripts": {
+ "test": "tap test/*.js --cov"
+ },
+ "version": "1.0.0"
+}
diff --git a/backend/node_modules/gauge/LICENSE.md b/backend/node_modules/gauge/LICENSE.md
new file mode 100644
index 0000000..5fc208f
--- /dev/null
+++ b/backend/node_modules/gauge/LICENSE.md
@@ -0,0 +1,20 @@
+<!-- This file is automatically added by @npmcli/template-oss. Do not edit. -->
+
+ISC License
+
+Copyright npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NPM DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL NPM BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/gauge/README.md b/backend/node_modules/gauge/README.md
new file mode 100644
index 0000000..9b82f24
--- /dev/null
+++ b/backend/node_modules/gauge/README.md
@@ -0,0 +1,402 @@
+gauge
+=====
+
+A nearly stateless terminal based horizontal gauge / progress bar.
+
+```javascript
+var Gauge = require("gauge")
+
+var gauge = new Gauge()
+
+gauge.show("working…", 0)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.25) }, 500)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.50) }, 1000)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.75) }, 1500)
+setTimeout(() => { gauge.pulse(); gauge.show("working…", 0.99) }, 2000)
+setTimeout(() => gauge.hide(), 2300)
+```
+
+See also the [demos](demo.js):
+
+
+
+
+### CHANGES FROM 1.x
+
+Gauge 2.x is breaking release, please see the [changelog] for details on
+what's changed if you were previously a user of this module.
+
+[changelog]: CHANGELOG.md
+
+### THE GAUGE CLASS
+
+This is the typical interface to the module– it provides a pretty
+fire-and-forget interface to displaying your status information.
+
+```
+var Gauge = require("gauge")
+
+var gauge = new Gauge([stream], [options])
+```
+
+* **stream** – *(optional, default STDERR)* A stream that progress bar
+ updates are to be written to. Gauge honors backpressure and will pause
+ most writing if it is indicated.
+* **options** – *(optional)* An option object.
+
+Constructs a new gauge. Gauges are drawn on a single line, and are not drawn
+if **stream** isn't a tty and a tty isn't explicitly provided.
+
+If **stream** is a terminal or if you pass in **tty** to **options** then we
+will detect terminal resizes and redraw to fit. We do this by watching for
+`resize` events on the tty. (To work around a bug in versions of Node prior
+to 2.5.0, we watch for them on stdout if the tty is stderr.) Resizes to
+larger window sizes will be clean, but shrinking the window will always
+result in some cruft.
+
+**IMPORTANT:** If you previously were passing in a non-tty stream but you still
+want output (for example, a stream wrapped by the `ansi` module) then you
+need to pass in the **tty** option below, as `gauge` needs access to
+the underlying tty in order to do things like terminal resizes and terminal
+width detection.
+
+The **options** object can have the following properties, all of which are
+optional:
+
+* **updateInterval**: How often gauge updates should be drawn, in milliseconds.
+* **fixedFramerate**: Defaults to false on node 0.8, true on everything
+ else. When this is true a timer is created to trigger once every
+ `updateInterval` ms, when false, updates are printed as soon as they come
+ in but updates more often than `updateInterval` are ignored. The reason
+ 0.8 doesn't have this set to true is that it can't `unref` its timer and
+ so it would stop your program from exiting– if you want to use this
+ feature with 0.8 just make sure you call `gauge.disable()` before you
+ expect your program to exit.
+* **themes**: A themeset to use when selecting the theme to use. Defaults
+ to `gauge/themes`, see the [themes] documentation for details.
+* **theme**: Select a theme for use, it can be a:
+ * Theme object, in which case the **themes** is not used.
+ * The name of a theme, which will be looked up in the current *themes*
+ object.
+ * A configuration object with any of `hasUnicode`, `hasColor` or
+ `platform` keys, which if will be used to override our guesses when making
+ a default theme selection.
+
+ If no theme is selected then a default is picked using a combination of our
+ best guesses at your OS, color support and unicode support.
+* **template**: Describes what you want your gauge to look like. The
+ default is what npm uses. Detailed [documentation] is later in this
+ document.
+* **hideCursor**: Defaults to true. If true, then the cursor will be hidden
+ while the gauge is displayed.
+* **tty**: The tty that you're ultimately writing to. Defaults to the same
+ as **stream**. This is used for detecting the width of the terminal and
+ resizes. The width used is `tty.columns - 1`. If no tty is available then
+ a width of `79` is assumed.
+* **enabled**: Defaults to true if `tty` is a TTY, false otherwise. If true
+ the gauge starts enabled. If disabled then all update commands are
+ ignored and no gauge will be printed until you call `.enable()`.
+* **Plumbing**: The class to use to actually generate the gauge for
+ printing. This defaults to `require('gauge/plumbing')` and ordinarily you
+ shouldn't need to override this.
+* **cleanupOnExit**: Defaults to true. Ordinarily we register an exit
+ handler to make sure your cursor is turned back on and the progress bar
+ erased when your process exits, even if you Ctrl-C out or otherwise exit
+ unexpectedly. You can disable this and it won't register the exit handler.
+
+[has-unicode]: https://www.npmjs.com/package/has-unicode
+[themes]: #themes
+[documentation]: #templates
+
+#### `gauge.show(section | status, [completed])`
+
+The first argument is either the section, the name of the current thing
+contributing to progress, or an object with keys like **section**,
+**subsection** & **completed** (or any others you have types for in a custom
+template). If you don't want to update or set any of these you can pass
+`null` and it will be ignored.
+
+The second argument is the percent completed as a value between 0 and 1.
+Without it, completion is just not updated. You'll also note that completion
+can be passed in as part of a status object as the first argument. If both
+it and the completed argument are passed in, the completed argument wins.
+
+#### `gauge.hide([cb])`
+
+Removes the gauge from the terminal. Optionally, callback `cb` after IO has
+had an opportunity to happen (currently this just means after `setImmediate`
+has called back.)
+
+It turns out this is important when you're pausing the progress bar on one
+filehandle and printing to another– otherwise (with a big enough print) node
+can end up printing the "end progress bar" bits to the progress bar filehandle
+while other stuff is printing to another filehandle. These getting interleaved
+can cause corruption in some terminals.
+
+#### `gauge.pulse([subsection])`
+
+* **subsection** – *(optional)* The specific thing that triggered this pulse
+
+Spins the spinner in the gauge to show output. If **subsection** is
+included then it will be combined with the last name passed to `gauge.show`.
+
+#### `gauge.disable()`
+
+Hides the gauge and ignores further calls to `show` or `pulse`.
+
+#### `gauge.enable()`
+
+Shows the gauge and resumes updating when `show` or `pulse` is called.
+
+#### `gauge.isEnabled()`
+
+Returns true if the gauge is enabled.
+
+#### `gauge.setThemeset(themes)`
+
+Change the themeset to select a theme from. The same as the `themes` option
+used in the constructor. The theme will be reselected from this themeset.
+
+#### `gauge.setTheme(theme)`
+
+Change the active theme, will be displayed with the next show or pulse. This can be:
+
+* Theme object, in which case the **themes** is not used.
+* The name of a theme, which will be looked up in the current *themes*
+ object.
+* A configuration object with any of `hasUnicode`, `hasColor` or
+ `platform` keys, which if will be used to override our guesses when making
+ a default theme selection.
+
+If no theme is selected then a default is picked using a combination of our
+best guesses at your OS, color support and unicode support.
+
+#### `gauge.setTemplate(template)`
+
+Change the active template, will be displayed with the next show or pulse
+
+### Tracking Completion
+
+If you have more than one thing going on that you want to track completion
+of, you may find the related [are-we-there-yet] helpful. It's `change`
+event can be wired up to the `show` method to get a more traditional
+progress bar interface.
+
+[are-we-there-yet]: https://www.npmjs.com/package/are-we-there-yet
+
+### THEMES
+
+```
+var themes = require('gauge/themes')
+
+// fetch the default color unicode theme for this platform
+var ourTheme = themes({hasUnicode: true, hasColor: true})
+
+// fetch the default non-color unicode theme for osx
+var ourTheme = themes({hasUnicode: true, hasColor: false, platform: 'darwin'})
+
+// create a new theme based on the color ascii theme for this platform
+// that brackets the progress bar with arrows
+var ourTheme = themes.newTheme(themes({hasUnicode: false, hasColor: true}), {
+ preProgressbar: '→',
+ postProgressbar: 'â†'
+})
+```
+
+The object returned by `gauge/themes` is an instance of the `ThemeSet` class.
+
+```
+var ThemeSet = require('gauge/theme-set')
+var themes = new ThemeSet()
+// or
+var themes = require('gauge/themes')
+var mythemes = themes.newThemeSet() // creates a new themeset based on the default themes
+```
+
+#### themes(opts)
+#### themes.getDefault(opts)
+
+Theme objects are a function that fetches the default theme based on
+platform, unicode and color support.
+
+Options is an object with the following properties:
+
+* **hasUnicode** - If true, fetch a unicode theme, if no unicode theme is
+ available then a non-unicode theme will be used.
+* **hasColor** - If true, fetch a color theme, if no color theme is
+ available a non-color theme will be used.
+* **platform** (optional) - Defaults to `process.platform`. If no
+ platform match is available then `fallback` is used instead.
+
+If no compatible theme can be found then an error will be thrown with a
+`code` of `EMISSINGTHEME`.
+
+#### themes.addTheme(themeName, themeObj)
+#### themes.addTheme(themeName, [parentTheme], newTheme)
+
+Adds a named theme to the themeset. You can pass in either a theme object,
+as returned by `themes.newTheme` or the arguments you'd pass to
+`themes.newTheme`.
+
+#### themes.getThemeNames()
+
+Return a list of all of the names of the themes in this themeset. Suitable
+for use in `themes.getTheme(…)`.
+
+#### themes.getTheme(name)
+
+Returns the theme object from this theme set named `name`.
+
+If `name` does not exist in this themeset an error will be thrown with
+a `code` of `EMISSINGTHEME`.
+
+#### themes.setDefault([opts], themeName)
+
+`opts` is an object with the following properties.
+
+* **platform** - Defaults to `'fallback'`. If your theme is platform
+ specific, specify that here with the platform from `process.platform`, eg,
+ `win32`, `darwin`, etc.
+* **hasUnicode** - Defaults to `false`. If your theme uses unicode you
+ should set this to true.
+* **hasColor** - Defaults to `false`. If your theme uses color you should
+ set this to true.
+
+`themeName` is the name of the theme (as given to `addTheme`) to use for
+this set of `opts`.
+
+#### themes.newTheme([parentTheme,] newTheme)
+
+Create a new theme object based on `parentTheme`. If no `parentTheme` is
+provided then a minimal parentTheme that defines functions for rendering the
+activity indicator (spinner) and progress bar will be defined. (This
+fallback parent is defined in `gauge/base-theme`.)
+
+newTheme should be a bare object– we'll start by discussing the properties
+defined by the default themes:
+
+* **preProgressbar** - displayed prior to the progress bar, if the progress
+ bar is displayed.
+* **postProgressbar** - displayed after the progress bar, if the progress bar
+ is displayed.
+* **progressBarTheme** - The subtheme passed through to the progress bar
+ renderer, it's an object with `complete` and `remaining` properties
+ that are the strings you want repeated for those sections of the progress
+ bar.
+* **activityIndicatorTheme** - The theme for the activity indicator (spinner),
+ this can either be a string, in which each character is a different step, or
+ an array of strings.
+* **preSubsection** - Displayed as a separator between the `section` and
+ `subsection` when the latter is printed.
+
+More generally, themes can have any value that would be a valid value when rendering
+templates. The properties in the theme are used when their name matches a type in
+the template. Their values can be:
+
+* **strings & numbers** - They'll be included as is
+* **function (values, theme, width)** - Should return what you want in your output.
+ *values* is an object with values provided via `gauge.show`,
+ *theme* is the theme specific to this item (see below) or this theme object,
+ and *width* is the number of characters wide your result should be.
+
+There are a couple of special prefixes:
+
+* **pre** - Is shown prior to the property, if its displayed.
+* **post** - Is shown after the property, if its displayed.
+
+And one special suffix:
+
+* **Theme** - Its value is passed to a function-type item as the theme.
+
+#### themes.addToAllThemes(theme)
+
+This *mixes-in* `theme` into all themes currently defined. It also adds it
+to the default parent theme for this themeset, so future themes added to
+this themeset will get the values from `theme` by default.
+
+#### themes.newThemeSet()
+
+Copy the current themeset into a new one. This allows you to easily inherit
+one themeset from another.
+
+### TEMPLATES
+
+A template is an array of objects and strings that, after being evaluated,
+will be turned into the gauge line. The default template is:
+
+```javascript
+[
+ {type: 'progressbar', length: 20},
+ {type: 'activityIndicator', kerning: 1, length: 1},
+ {type: 'section', kerning: 1, default: ''},
+ {type: 'subsection', kerning: 1, default: ''}
+]
+```
+
+The various template elements can either be **plain strings**, in which case they will
+be be included verbatum in the output, or objects with the following properties:
+
+* *type* can be any of the following plus any keys you pass into `gauge.show` plus
+ any keys you have on a custom theme.
+ * `section` – What big thing you're working on now.
+ * `subsection` – What component of that thing is currently working.
+ * `activityIndicator` – Shows a spinner using the `activityIndicatorTheme`
+ from your active theme.
+ * `progressbar` – A progress bar representing your current `completed`
+ using the `progressbarTheme` from your active theme.
+* *kerning* – Number of spaces that must be between this item and other
+ items, if this item is displayed at all.
+* *maxLength* – The maximum length for this element. If its value is longer it
+ will be truncated.
+* *minLength* – The minimum length for this element. If its value is shorter it
+ will be padded according to the *align* value.
+* *align* – (Default: left) Possible values "left", "right" and "center". Works
+ as you'd expect from word processors.
+* *length* – Provides a single value for both *minLength* and *maxLength*. If both
+ *length* and *minLength or *maxLength* are specified then the latter take precedence.
+* *value* – A literal value to use for this template item.
+* *default* – A default value to use for this template item if a value
+ wasn't otherwise passed in.
+
+### PLUMBING
+
+This is the super simple, assume nothing, do no magic internals used by gauge to
+implement its ordinary interface.
+
+```
+var Plumbing = require('gauge/plumbing')
+var gauge = new Plumbing(theme, template, width)
+```
+
+* **theme**: The theme to use.
+* **template**: The template to use.
+* **width**: How wide your gauge should be
+
+#### `gauge.setTheme(theme)`
+
+Change the active theme.
+
+#### `gauge.setTemplate(template)`
+
+Change the active template.
+
+#### `gauge.setWidth(width)`
+
+Change the width to render at.
+
+#### `gauge.hide()`
+
+Return the string necessary to hide the progress bar
+
+#### `gauge.hideCursor()`
+
+Return a string to hide the cursor.
+
+#### `gauge.showCursor()`
+
+Return a string to show the cursor.
+
+#### `gauge.show(status)`
+
+Using `status` for values, render the provided template with the theme and return
+a string that is suitable for printing to update the gauge.
diff --git a/backend/node_modules/gauge/lib/base-theme.js b/backend/node_modules/gauge/lib/base-theme.js
new file mode 100644
index 0000000..00bf568
--- /dev/null
+++ b/backend/node_modules/gauge/lib/base-theme.js
@@ -0,0 +1,18 @@
+'use strict'
+var spin = require('./spin.js')
+var progressBar = require('./progress-bar.js')
+
+module.exports = {
+ activityIndicator: function (values, theme, width) {
+ if (values.spun == null) {
+ return
+ }
+ return spin(theme, values.spun)
+ },
+ progressbar: function (values, theme, width) {
+ if (values.completed == null) {
+ return
+ }
+ return progressBar(theme, width, values.completed)
+ },
+}
diff --git a/backend/node_modules/gauge/lib/demo.js b/backend/node_modules/gauge/lib/demo.js
new file mode 100644
index 0000000..88c03cd
--- /dev/null
+++ b/backend/node_modules/gauge/lib/demo.js
@@ -0,0 +1,45 @@
+var Gauge = require('./')
+var gaugeDefault = require('./themes.js')
+var onExit = require('signal-exit')
+
+var activeGauge
+
+onExit(function () {
+ activeGauge.disable()
+})
+
+var themes = gaugeDefault.getThemeNames()
+
+nextBar()
+function nextBar () {
+ var themeName = themes.shift()
+
+ console.log('Demoing output for ' + themeName)
+
+ var gt = new Gauge(process.stderr, {
+ updateInterval: 50,
+ theme: themeName,
+ cleanupOnExit: false,
+ })
+ activeGauge = gt
+
+ var progress = 0
+
+ var cnt = 0
+ var pulse = setInterval(function () {
+ gt.pulse('this is a thing that happened ' + (++cnt))
+ }, 110)
+ var prog = setInterval(function () {
+ progress += 0.04
+ gt.show(themeName + ':' + Math.round(progress * 1000), progress)
+ if (progress >= 1) {
+ clearInterval(prog)
+ clearInterval(pulse)
+ gt.disable()
+ if (themes.length) {
+ nextBar()
+ }
+ }
+ }, 100)
+ gt.show()
+}
diff --git a/backend/node_modules/gauge/lib/error.js b/backend/node_modules/gauge/lib/error.js
new file mode 100644
index 0000000..d9914ba
--- /dev/null
+++ b/backend/node_modules/gauge/lib/error.js
@@ -0,0 +1,24 @@
+'use strict'
+var util = require('util')
+
+var User = exports.User = function User (msg) {
+ var err = new Error(msg)
+ Error.captureStackTrace(err, User)
+ err.code = 'EGAUGE'
+ return err
+}
+
+exports.MissingTemplateValue = function MissingTemplateValue (item, values) {
+ var err = new User(util.format('Missing template value "%s"', item.type))
+ Error.captureStackTrace(err, MissingTemplateValue)
+ err.template = item
+ err.values = values
+ return err
+}
+
+exports.Internal = function Internal (msg) {
+ var err = new Error(msg)
+ Error.captureStackTrace(err, Internal)
+ err.code = 'EGAUGEINTERNAL'
+ return err
+}
diff --git a/backend/node_modules/gauge/lib/has-color.js b/backend/node_modules/gauge/lib/has-color.js
new file mode 100644
index 0000000..16cba0e
--- /dev/null
+++ b/backend/node_modules/gauge/lib/has-color.js
@@ -0,0 +1,4 @@
+'use strict'
+var colorSupport = require('color-support')
+
+module.exports = colorSupport().hasBasic
diff --git a/backend/node_modules/gauge/lib/index.js b/backend/node_modules/gauge/lib/index.js
new file mode 100644
index 0000000..ce9ba7d
--- /dev/null
+++ b/backend/node_modules/gauge/lib/index.js
@@ -0,0 +1,290 @@
+'use strict'
+var Plumbing = require('./plumbing.js')
+var hasUnicode = require('has-unicode')
+var hasColor = require('./has-color.js')
+var onExit = require('signal-exit')
+var defaultThemes = require('./themes')
+var setInterval = require('./set-interval.js')
+var process = require('./process.js')
+var setImmediate = require('./set-immediate')
+
+module.exports = Gauge
+
+function callWith (obj, method) {
+ return function () {
+ return method.call(obj)
+ }
+}
+
+function Gauge (arg1, arg2) {
+ var options, writeTo
+ if (arg1 && arg1.write) {
+ writeTo = arg1
+ options = arg2 || {}
+ } else if (arg2 && arg2.write) {
+ writeTo = arg2
+ options = arg1 || {}
+ } else {
+ writeTo = process.stderr
+ options = arg1 || arg2 || {}
+ }
+
+ this._status = {
+ spun: 0,
+ section: '',
+ subsection: '',
+ }
+ this._paused = false // are we paused for back pressure?
+ this._disabled = true // are all progress bar updates disabled?
+ this._showing = false // do we WANT the progress bar on screen
+ this._onScreen = false // IS the progress bar on screen
+ this._needsRedraw = false // should we print something at next tick?
+ this._hideCursor = options.hideCursor == null ? true : options.hideCursor
+ this._fixedFramerate = options.fixedFramerate == null
+ ? !(/^v0\.8\./.test(process.version))
+ : options.fixedFramerate
+ this._lastUpdateAt = null
+ this._updateInterval = options.updateInterval == null ? 50 : options.updateInterval
+
+ this._themes = options.themes || defaultThemes
+ this._theme = options.theme
+ var theme = this._computeTheme(options.theme)
+ var template = options.template || [
+ { type: 'progressbar', length: 20 },
+ { type: 'activityIndicator', kerning: 1, length: 1 },
+ { type: 'section', kerning: 1, default: '' },
+ { type: 'subsection', kerning: 1, default: '' },
+ ]
+ this.setWriteTo(writeTo, options.tty)
+ var PlumbingClass = options.Plumbing || Plumbing
+ this._gauge = new PlumbingClass(theme, template, this.getWidth())
+
+ this._$$doRedraw = callWith(this, this._doRedraw)
+ this._$$handleSizeChange = callWith(this, this._handleSizeChange)
+
+ this._cleanupOnExit = options.cleanupOnExit == null || options.cleanupOnExit
+ this._removeOnExit = null
+
+ if (options.enabled || (options.enabled == null && this._tty && this._tty.isTTY)) {
+ this.enable()
+ } else {
+ this.disable()
+ }
+}
+Gauge.prototype = {}
+
+Gauge.prototype.isEnabled = function () {
+ return !this._disabled
+}
+
+Gauge.prototype.setTemplate = function (template) {
+ this._gauge.setTemplate(template)
+ if (this._showing) {
+ this._requestRedraw()
+ }
+}
+
+Gauge.prototype._computeTheme = function (theme) {
+ if (!theme) {
+ theme = {}
+ }
+ if (typeof theme === 'string') {
+ theme = this._themes.getTheme(theme)
+ } else if (
+ theme &&
+ (Object.keys(theme).length === 0 || theme.hasUnicode != null || theme.hasColor != null)
+ ) {
+ var useUnicode = theme.hasUnicode == null ? hasUnicode() : theme.hasUnicode
+ var useColor = theme.hasColor == null ? hasColor : theme.hasColor
+ theme = this._themes.getDefault({
+ hasUnicode: useUnicode,
+ hasColor: useColor,
+ platform: theme.platform,
+ })
+ }
+ return theme
+}
+
+Gauge.prototype.setThemeset = function (themes) {
+ this._themes = themes
+ this.setTheme(this._theme)
+}
+
+Gauge.prototype.setTheme = function (theme) {
+ this._gauge.setTheme(this._computeTheme(theme))
+ if (this._showing) {
+ this._requestRedraw()
+ }
+ this._theme = theme
+}
+
+Gauge.prototype._requestRedraw = function () {
+ this._needsRedraw = true
+ if (!this._fixedFramerate) {
+ this._doRedraw()
+ }
+}
+
+Gauge.prototype.getWidth = function () {
+ return ((this._tty && this._tty.columns) || 80) - 1
+}
+
+Gauge.prototype.setWriteTo = function (writeTo, tty) {
+ var enabled = !this._disabled
+ if (enabled) {
+ this.disable()
+ }
+ this._writeTo = writeTo
+ this._tty = tty ||
+ (writeTo === process.stderr && process.stdout.isTTY && process.stdout) ||
+ (writeTo.isTTY && writeTo) ||
+ this._tty
+ if (this._gauge) {
+ this._gauge.setWidth(this.getWidth())
+ }
+ if (enabled) {
+ this.enable()
+ }
+}
+
+Gauge.prototype.enable = function () {
+ if (!this._disabled) {
+ return
+ }
+ this._disabled = false
+ if (this._tty) {
+ this._enableEvents()
+ }
+ if (this._showing) {
+ this.show()
+ }
+}
+
+Gauge.prototype.disable = function () {
+ if (this._disabled) {
+ return
+ }
+ if (this._showing) {
+ this._lastUpdateAt = null
+ this._showing = false
+ this._doRedraw()
+ this._showing = true
+ }
+ this._disabled = true
+ if (this._tty) {
+ this._disableEvents()
+ }
+}
+
+Gauge.prototype._enableEvents = function () {
+ if (this._cleanupOnExit) {
+ this._removeOnExit = onExit(callWith(this, this.disable))
+ }
+ this._tty.on('resize', this._$$handleSizeChange)
+ if (this._fixedFramerate) {
+ this.redrawTracker = setInterval(this._$$doRedraw, this._updateInterval)
+ if (this.redrawTracker.unref) {
+ this.redrawTracker.unref()
+ }
+ }
+}
+
+Gauge.prototype._disableEvents = function () {
+ this._tty.removeListener('resize', this._$$handleSizeChange)
+ if (this._fixedFramerate) {
+ clearInterval(this.redrawTracker)
+ }
+ if (this._removeOnExit) {
+ this._removeOnExit()
+ }
+}
+
+Gauge.prototype.hide = function (cb) {
+ if (this._disabled) {
+ return cb && process.nextTick(cb)
+ }
+ if (!this._showing) {
+ return cb && process.nextTick(cb)
+ }
+ this._showing = false
+ this._doRedraw()
+ cb && setImmediate(cb)
+}
+
+Gauge.prototype.show = function (section, completed) {
+ this._showing = true
+ if (typeof section === 'string') {
+ this._status.section = section
+ } else if (typeof section === 'object') {
+ var sectionKeys = Object.keys(section)
+ for (var ii = 0; ii < sectionKeys.length; ++ii) {
+ var key = sectionKeys[ii]
+ this._status[key] = section[key]
+ }
+ }
+ if (completed != null) {
+ this._status.completed = completed
+ }
+ if (this._disabled) {
+ return
+ }
+ this._requestRedraw()
+}
+
+Gauge.prototype.pulse = function (subsection) {
+ this._status.subsection = subsection || ''
+ this._status.spun++
+ if (this._disabled) {
+ return
+ }
+ if (!this._showing) {
+ return
+ }
+ this._requestRedraw()
+}
+
+Gauge.prototype._handleSizeChange = function () {
+ this._gauge.setWidth(this._tty.columns - 1)
+ this._requestRedraw()
+}
+
+Gauge.prototype._doRedraw = function () {
+ if (this._disabled || this._paused) {
+ return
+ }
+ if (!this._fixedFramerate) {
+ var now = Date.now()
+ if (this._lastUpdateAt && now - this._lastUpdateAt < this._updateInterval) {
+ return
+ }
+ this._lastUpdateAt = now
+ }
+ if (!this._showing && this._onScreen) {
+ this._onScreen = false
+ var result = this._gauge.hide()
+ if (this._hideCursor) {
+ result += this._gauge.showCursor()
+ }
+ return this._writeTo.write(result)
+ }
+ if (!this._showing && !this._onScreen) {
+ return
+ }
+ if (this._showing && !this._onScreen) {
+ this._onScreen = true
+ this._needsRedraw = true
+ if (this._hideCursor) {
+ this._writeTo.write(this._gauge.hideCursor())
+ }
+ }
+ if (!this._needsRedraw) {
+ return
+ }
+ if (!this._writeTo.write(this._gauge.show(this._status))) {
+ this._paused = true
+ this._writeTo.on('drain', callWith(this, function () {
+ this._paused = false
+ this._doRedraw()
+ }))
+ }
+}
diff --git a/backend/node_modules/gauge/lib/plumbing.js b/backend/node_modules/gauge/lib/plumbing.js
new file mode 100644
index 0000000..c4dc3e0
--- /dev/null
+++ b/backend/node_modules/gauge/lib/plumbing.js
@@ -0,0 +1,50 @@
+'use strict'
+var consoleControl = require('console-control-strings')
+var renderTemplate = require('./render-template.js')
+var validate = require('aproba')
+
+var Plumbing = module.exports = function (theme, template, width) {
+ if (!width) {
+ width = 80
+ }
+ validate('OAN', [theme, template, width])
+ this.showing = false
+ this.theme = theme
+ this.width = width
+ this.template = template
+}
+Plumbing.prototype = {}
+
+Plumbing.prototype.setTheme = function (theme) {
+ validate('O', [theme])
+ this.theme = theme
+}
+
+Plumbing.prototype.setTemplate = function (template) {
+ validate('A', [template])
+ this.template = template
+}
+
+Plumbing.prototype.setWidth = function (width) {
+ validate('N', [width])
+ this.width = width
+}
+
+Plumbing.prototype.hide = function () {
+ return consoleControl.gotoSOL() + consoleControl.eraseLine()
+}
+
+Plumbing.prototype.hideCursor = consoleControl.hideCursor
+
+Plumbing.prototype.showCursor = consoleControl.showCursor
+
+Plumbing.prototype.show = function (status) {
+ var values = Object.create(this.theme)
+ for (var key in status) {
+ values[key] = status[key]
+ }
+
+ return renderTemplate(this.width, this.template, values).trim() +
+ consoleControl.color('reset') +
+ consoleControl.eraseLine() + consoleControl.gotoSOL()
+}
diff --git a/backend/node_modules/gauge/lib/process.js b/backend/node_modules/gauge/lib/process.js
new file mode 100644
index 0000000..05e8569
--- /dev/null
+++ b/backend/node_modules/gauge/lib/process.js
@@ -0,0 +1,3 @@
+'use strict'
+// this exists so we can replace it during testing
+module.exports = process
diff --git a/backend/node_modules/gauge/lib/progress-bar.js b/backend/node_modules/gauge/lib/progress-bar.js
new file mode 100644
index 0000000..184ff25
--- /dev/null
+++ b/backend/node_modules/gauge/lib/progress-bar.js
@@ -0,0 +1,41 @@
+'use strict'
+var validate = require('aproba')
+var renderTemplate = require('./render-template.js')
+var wideTruncate = require('./wide-truncate')
+var stringWidth = require('string-width')
+
+module.exports = function (theme, width, completed) {
+ validate('ONN', [theme, width, completed])
+ if (completed < 0) {
+ completed = 0
+ }
+ if (completed > 1) {
+ completed = 1
+ }
+ if (width <= 0) {
+ return ''
+ }
+ var sofar = Math.round(width * completed)
+ var rest = width - sofar
+ var template = [
+ { type: 'complete', value: repeat(theme.complete, sofar), length: sofar },
+ { type: 'remaining', value: repeat(theme.remaining, rest), length: rest },
+ ]
+ return renderTemplate(width, template, theme)
+}
+
+// lodash's way of repeating
+function repeat (string, width) {
+ var result = ''
+ var n = width
+ do {
+ if (n % 2) {
+ result += string
+ }
+ n = Math.floor(n / 2)
+ /* eslint no-self-assign: 0 */
+ string += string
+ } while (n && stringWidth(result) < width)
+
+ return wideTruncate(result, width)
+}
diff --git a/backend/node_modules/gauge/lib/render-template.js b/backend/node_modules/gauge/lib/render-template.js
new file mode 100644
index 0000000..d1b52c0
--- /dev/null
+++ b/backend/node_modules/gauge/lib/render-template.js
@@ -0,0 +1,222 @@
+'use strict'
+var align = require('wide-align')
+var validate = require('aproba')
+var wideTruncate = require('./wide-truncate')
+var error = require('./error')
+var TemplateItem = require('./template-item')
+
+function renderValueWithValues (values) {
+ return function (item) {
+ return renderValue(item, values)
+ }
+}
+
+var renderTemplate = module.exports = function (width, template, values) {
+ var items = prepareItems(width, template, values)
+ var rendered = items.map(renderValueWithValues(values)).join('')
+ return align.left(wideTruncate(rendered, width), width)
+}
+
+function preType (item) {
+ var cappedTypeName = item.type[0].toUpperCase() + item.type.slice(1)
+ return 'pre' + cappedTypeName
+}
+
+function postType (item) {
+ var cappedTypeName = item.type[0].toUpperCase() + item.type.slice(1)
+ return 'post' + cappedTypeName
+}
+
+function hasPreOrPost (item, values) {
+ if (!item.type) {
+ return
+ }
+ return values[preType(item)] || values[postType(item)]
+}
+
+function generatePreAndPost (baseItem, parentValues) {
+ var item = Object.assign({}, baseItem)
+ var values = Object.create(parentValues)
+ var template = []
+ var pre = preType(item)
+ var post = postType(item)
+ if (values[pre]) {
+ template.push({ value: values[pre] })
+ values[pre] = null
+ }
+ item.minLength = null
+ item.length = null
+ item.maxLength = null
+ template.push(item)
+ values[item.type] = values[item.type]
+ if (values[post]) {
+ template.push({ value: values[post] })
+ values[post] = null
+ }
+ return function ($1, $2, length) {
+ return renderTemplate(length, template, values)
+ }
+}
+
+function prepareItems (width, template, values) {
+ function cloneAndObjectify (item, index, arr) {
+ var cloned = new TemplateItem(item, width)
+ var type = cloned.type
+ if (cloned.value == null) {
+ if (!(type in values)) {
+ if (cloned.default == null) {
+ throw new error.MissingTemplateValue(cloned, values)
+ } else {
+ cloned.value = cloned.default
+ }
+ } else {
+ cloned.value = values[type]
+ }
+ }
+ if (cloned.value == null || cloned.value === '') {
+ return null
+ }
+ cloned.index = index
+ cloned.first = index === 0
+ cloned.last = index === arr.length - 1
+ if (hasPreOrPost(cloned, values)) {
+ cloned.value = generatePreAndPost(cloned, values)
+ }
+ return cloned
+ }
+
+ var output = template.map(cloneAndObjectify).filter(function (item) {
+ return item != null
+ })
+
+ var remainingSpace = width
+ var variableCount = output.length
+
+ function consumeSpace (length) {
+ if (length > remainingSpace) {
+ length = remainingSpace
+ }
+ remainingSpace -= length
+ }
+
+ function finishSizing (item, length) {
+ if (item.finished) {
+ throw new error.Internal('Tried to finish template item that was already finished')
+ }
+ if (length === Infinity) {
+ throw new error.Internal('Length of template item cannot be infinity')
+ }
+ if (length != null) {
+ item.length = length
+ }
+ item.minLength = null
+ item.maxLength = null
+ --variableCount
+ item.finished = true
+ if (item.length == null) {
+ item.length = item.getBaseLength()
+ }
+ if (item.length == null) {
+ throw new error.Internal('Finished template items must have a length')
+ }
+ consumeSpace(item.getLength())
+ }
+
+ output.forEach(function (item) {
+ if (!item.kerning) {
+ return
+ }
+ var prevPadRight = item.first ? 0 : output[item.index - 1].padRight
+ if (!item.first && prevPadRight < item.kerning) {
+ item.padLeft = item.kerning - prevPadRight
+ }
+ if (!item.last) {
+ item.padRight = item.kerning
+ }
+ })
+
+ // Finish any that have a fixed (literal or intuited) length
+ output.forEach(function (item) {
+ if (item.getBaseLength() == null) {
+ return
+ }
+ finishSizing(item)
+ })
+
+ var resized = 0
+ var resizing
+ var hunkSize
+ do {
+ resizing = false
+ hunkSize = Math.round(remainingSpace / variableCount)
+ output.forEach(function (item) {
+ if (item.finished) {
+ return
+ }
+ if (!item.maxLength) {
+ return
+ }
+ if (item.getMaxLength() < hunkSize) {
+ finishSizing(item, item.maxLength)
+ resizing = true
+ }
+ })
+ } while (resizing && resized++ < output.length)
+ if (resizing) {
+ throw new error.Internal('Resize loop iterated too many times while determining maxLength')
+ }
+
+ resized = 0
+ do {
+ resizing = false
+ hunkSize = Math.round(remainingSpace / variableCount)
+ output.forEach(function (item) {
+ if (item.finished) {
+ return
+ }
+ if (!item.minLength) {
+ return
+ }
+ if (item.getMinLength() >= hunkSize) {
+ finishSizing(item, item.minLength)
+ resizing = true
+ }
+ })
+ } while (resizing && resized++ < output.length)
+ if (resizing) {
+ throw new error.Internal('Resize loop iterated too many times while determining minLength')
+ }
+
+ hunkSize = Math.round(remainingSpace / variableCount)
+ output.forEach(function (item) {
+ if (item.finished) {
+ return
+ }
+ finishSizing(item, hunkSize)
+ })
+
+ return output
+}
+
+function renderFunction (item, values, length) {
+ validate('OON', arguments)
+ if (item.type) {
+ return item.value(values, values[item.type + 'Theme'] || {}, length)
+ } else {
+ return item.value(values, {}, length)
+ }
+}
+
+function renderValue (item, values) {
+ var length = item.getBaseLength()
+ var value = typeof item.value === 'function' ? renderFunction(item, values, length) : item.value
+ if (value == null || value === '') {
+ return ''
+ }
+ var alignWith = align[item.align] || align.left
+ var leftPadding = item.padLeft ? align.left('', item.padLeft) : ''
+ var rightPadding = item.padRight ? align.right('', item.padRight) : ''
+ var truncated = wideTruncate(String(value), length)
+ var aligned = alignWith(truncated, length)
+ return leftPadding + aligned + rightPadding
+}
diff --git a/backend/node_modules/gauge/lib/set-immediate.js b/backend/node_modules/gauge/lib/set-immediate.js
new file mode 100644
index 0000000..6650a48
--- /dev/null
+++ b/backend/node_modules/gauge/lib/set-immediate.js
@@ -0,0 +1,7 @@
+'use strict'
+var process = require('./process')
+try {
+ module.exports = setImmediate
+} catch (ex) {
+ module.exports = process.nextTick
+}
diff --git a/backend/node_modules/gauge/lib/set-interval.js b/backend/node_modules/gauge/lib/set-interval.js
new file mode 100644
index 0000000..5761987
--- /dev/null
+++ b/backend/node_modules/gauge/lib/set-interval.js
@@ -0,0 +1,3 @@
+'use strict'
+// this exists so we can replace it during testing
+module.exports = setInterval
diff --git a/backend/node_modules/gauge/lib/spin.js b/backend/node_modules/gauge/lib/spin.js
new file mode 100644
index 0000000..34142ee
--- /dev/null
+++ b/backend/node_modules/gauge/lib/spin.js
@@ -0,0 +1,5 @@
+'use strict'
+
+module.exports = function spin (spinstr, spun) {
+ return spinstr[spun % spinstr.length]
+}
diff --git a/backend/node_modules/gauge/lib/template-item.js b/backend/node_modules/gauge/lib/template-item.js
new file mode 100644
index 0000000..e307e9b
--- /dev/null
+++ b/backend/node_modules/gauge/lib/template-item.js
@@ -0,0 +1,87 @@
+'use strict'
+var stringWidth = require('string-width')
+
+module.exports = TemplateItem
+
+function isPercent (num) {
+ if (typeof num !== 'string') {
+ return false
+ }
+ return num.slice(-1) === '%'
+}
+
+function percent (num) {
+ return Number(num.slice(0, -1)) / 100
+}
+
+function TemplateItem (values, outputLength) {
+ this.overallOutputLength = outputLength
+ this.finished = false
+ this.type = null
+ this.value = null
+ this.length = null
+ this.maxLength = null
+ this.minLength = null
+ this.kerning = null
+ this.align = 'left'
+ this.padLeft = 0
+ this.padRight = 0
+ this.index = null
+ this.first = null
+ this.last = null
+ if (typeof values === 'string') {
+ this.value = values
+ } else {
+ for (var prop in values) {
+ this[prop] = values[prop]
+ }
+ }
+ // Realize percents
+ if (isPercent(this.length)) {
+ this.length = Math.round(this.overallOutputLength * percent(this.length))
+ }
+ if (isPercent(this.minLength)) {
+ this.minLength = Math.round(this.overallOutputLength * percent(this.minLength))
+ }
+ if (isPercent(this.maxLength)) {
+ this.maxLength = Math.round(this.overallOutputLength * percent(this.maxLength))
+ }
+ return this
+}
+
+TemplateItem.prototype = {}
+
+TemplateItem.prototype.getBaseLength = function () {
+ var length = this.length
+ if (
+ length == null &&
+ typeof this.value === 'string' &&
+ this.maxLength == null &&
+ this.minLength == null
+ ) {
+ length = stringWidth(this.value)
+ }
+ return length
+}
+
+TemplateItem.prototype.getLength = function () {
+ var length = this.getBaseLength()
+ if (length == null) {
+ return null
+ }
+ return length + this.padLeft + this.padRight
+}
+
+TemplateItem.prototype.getMaxLength = function () {
+ if (this.maxLength == null) {
+ return null
+ }
+ return this.maxLength + this.padLeft + this.padRight
+}
+
+TemplateItem.prototype.getMinLength = function () {
+ if (this.minLength == null) {
+ return null
+ }
+ return this.minLength + this.padLeft + this.padRight
+}
diff --git a/backend/node_modules/gauge/lib/theme-set.js b/backend/node_modules/gauge/lib/theme-set.js
new file mode 100644
index 0000000..643d7db
--- /dev/null
+++ b/backend/node_modules/gauge/lib/theme-set.js
@@ -0,0 +1,122 @@
+'use strict'
+
+module.exports = function () {
+ return ThemeSetProto.newThemeSet()
+}
+
+var ThemeSetProto = {}
+
+ThemeSetProto.baseTheme = require('./base-theme.js')
+
+ThemeSetProto.newTheme = function (parent, theme) {
+ if (!theme) {
+ theme = parent
+ parent = this.baseTheme
+ }
+ return Object.assign({}, parent, theme)
+}
+
+ThemeSetProto.getThemeNames = function () {
+ return Object.keys(this.themes)
+}
+
+ThemeSetProto.addTheme = function (name, parent, theme) {
+ this.themes[name] = this.newTheme(parent, theme)
+}
+
+ThemeSetProto.addToAllThemes = function (theme) {
+ var themes = this.themes
+ Object.keys(themes).forEach(function (name) {
+ Object.assign(themes[name], theme)
+ })
+ Object.assign(this.baseTheme, theme)
+}
+
+ThemeSetProto.getTheme = function (name) {
+ if (!this.themes[name]) {
+ throw this.newMissingThemeError(name)
+ }
+ return this.themes[name]
+}
+
+ThemeSetProto.setDefault = function (opts, name) {
+ if (name == null) {
+ name = opts
+ opts = {}
+ }
+ var platform = opts.platform == null ? 'fallback' : opts.platform
+ var hasUnicode = !!opts.hasUnicode
+ var hasColor = !!opts.hasColor
+ if (!this.defaults[platform]) {
+ this.defaults[platform] = { true: {}, false: {} }
+ }
+ this.defaults[platform][hasUnicode][hasColor] = name
+}
+
+ThemeSetProto.getDefault = function (opts) {
+ if (!opts) {
+ opts = {}
+ }
+ var platformName = opts.platform || process.platform
+ var platform = this.defaults[platformName] || this.defaults.fallback
+ var hasUnicode = !!opts.hasUnicode
+ var hasColor = !!opts.hasColor
+ if (!platform) {
+ throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
+ }
+ if (!platform[hasUnicode][hasColor]) {
+ if (hasUnicode && hasColor && platform[!hasUnicode][hasColor]) {
+ hasUnicode = false
+ } else if (hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
+ hasColor = false
+ } else if (hasUnicode && hasColor && platform[!hasUnicode][!hasColor]) {
+ hasUnicode = false
+ hasColor = false
+ } else if (hasUnicode && !hasColor && platform[!hasUnicode][hasColor]) {
+ hasUnicode = false
+ } else if (!hasUnicode && hasColor && platform[hasUnicode][!hasColor]) {
+ hasColor = false
+ } else if (platform === this.defaults.fallback) {
+ throw this.newMissingDefaultThemeError(platformName, hasUnicode, hasColor)
+ }
+ }
+ if (platform[hasUnicode][hasColor]) {
+ return this.getTheme(platform[hasUnicode][hasColor])
+ } else {
+ return this.getDefault(Object.assign({}, opts, { platform: 'fallback' }))
+ }
+}
+
+ThemeSetProto.newMissingThemeError = function newMissingThemeError (name) {
+ var err = new Error('Could not find a gauge theme named "' + name + '"')
+ Error.captureStackTrace.call(err, newMissingThemeError)
+ err.theme = name
+ err.code = 'EMISSINGTHEME'
+ return err
+}
+
+ThemeSetProto.newMissingDefaultThemeError =
+ function newMissingDefaultThemeError (platformName, hasUnicode, hasColor) {
+ var err = new Error(
+ 'Could not find a gauge theme for your platform/unicode/color use combo:\n' +
+ ' platform = ' + platformName + '\n' +
+ ' hasUnicode = ' + hasUnicode + '\n' +
+ ' hasColor = ' + hasColor)
+ Error.captureStackTrace.call(err, newMissingDefaultThemeError)
+ err.platform = platformName
+ err.hasUnicode = hasUnicode
+ err.hasColor = hasColor
+ err.code = 'EMISSINGTHEME'
+ return err
+ }
+
+ThemeSetProto.newThemeSet = function () {
+ var themeset = function (opts) {
+ return themeset.getDefault(opts)
+ }
+ return Object.assign(themeset, ThemeSetProto, {
+ themes: Object.assign({}, this.themes),
+ baseTheme: Object.assign({}, this.baseTheme),
+ defaults: JSON.parse(JSON.stringify(this.defaults || {})),
+ })
+}
diff --git a/backend/node_modules/gauge/lib/themes.js b/backend/node_modules/gauge/lib/themes.js
new file mode 100644
index 0000000..1098ca0
--- /dev/null
+++ b/backend/node_modules/gauge/lib/themes.js
@@ -0,0 +1,56 @@
+'use strict'
+var color = require('console-control-strings').color
+var ThemeSet = require('./theme-set.js')
+
+var themes = module.exports = new ThemeSet()
+
+themes.addTheme('ASCII', {
+ preProgressbar: '[',
+ postProgressbar: ']',
+ progressbarTheme: {
+ complete: '#',
+ remaining: '.',
+ },
+ activityIndicatorTheme: '-\\|/',
+ preSubsection: '>',
+})
+
+themes.addTheme('colorASCII', themes.getTheme('ASCII'), {
+ progressbarTheme: {
+ preComplete: color('bgBrightWhite', 'brightWhite'),
+ complete: '#',
+ postComplete: color('reset'),
+ preRemaining: color('bgBrightBlack', 'brightBlack'),
+ remaining: '.',
+ postRemaining: color('reset'),
+ },
+})
+
+themes.addTheme('brailleSpinner', {
+ preProgressbar: '⸨',
+ postProgressbar: '⸩',
+ progressbarTheme: {
+ complete: '#',
+ remaining: 'â ‚',
+ },
+ activityIndicatorTheme: '⠋⠙⠹⠸⠼⠴⠦⠧⠇â ',
+ preSubsection: '>',
+})
+
+themes.addTheme('colorBrailleSpinner', themes.getTheme('brailleSpinner'), {
+ progressbarTheme: {
+ preComplete: color('bgBrightWhite', 'brightWhite'),
+ complete: '#',
+ postComplete: color('reset'),
+ preRemaining: color('bgBrightBlack', 'brightBlack'),
+ remaining: 'â ‚',
+ postRemaining: color('reset'),
+ },
+})
+
+themes.setDefault({}, 'ASCII')
+themes.setDefault({ hasColor: true }, 'colorASCII')
+themes.setDefault({ platform: 'darwin', hasUnicode: true }, 'brailleSpinner')
+themes.setDefault({ platform: 'darwin', hasUnicode: true, hasColor: true }, 'colorBrailleSpinner')
+themes.setDefault({ platform: 'linux', hasUnicode: true }, 'brailleSpinner')
+themes.setDefault({ platform: 'linux', hasUnicode: true, hasColor: true }, 'colorBrailleSpinner')
diff --git a/backend/node_modules/gauge/lib/wide-truncate.js b/backend/node_modules/gauge/lib/wide-truncate.js
new file mode 100644
index 0000000..5284a69
--- /dev/null
+++ b/backend/node_modules/gauge/lib/wide-truncate.js
@@ -0,0 +1,31 @@
+'use strict'
+var stringWidth = require('string-width')
+var stripAnsi = require('strip-ansi')
+
+module.exports = wideTruncate
+
+function wideTruncate (str, target) {
+ if (stringWidth(str) === 0) {
+ return str
+ }
+ if (target <= 0) {
+ return ''
+ }
+ if (stringWidth(str) <= target) {
+ return str
+ }
+
+ // We compute the number of bytes of ansi sequences here and add
+ // that to our initial truncation to ensure that we don't slice one
+ // that we want to keep in half.
+ var noAnsi = stripAnsi(str)
+ var ansiSize = str.length + noAnsi.length
+ var truncated = str.slice(0, target + ansiSize)
+
+ // we have to shrink the result to account for our ansi sequence buffer
+ // (if an ansi sequence was truncated) and double width characters.
+ while (stringWidth(truncated) > target) {
+ truncated = truncated.slice(0, -1)
+ }
+ return truncated
+}
diff --git a/backend/node_modules/gauge/package.json b/backend/node_modules/gauge/package.json
new file mode 100644
index 0000000..b0a1bdd
--- /dev/null
+++ b/backend/node_modules/gauge/package.json
@@ -0,0 +1,89 @@
+{
+ "_from": "gauge@^4.0.0",
+ "_id": "gauge@4.0.0",
+ "_inBundle": false,
+ "_integrity": "sha512-F8sU45yQpjQjxKkm1UOAhf0U/O0aFt//Fl7hsrNVto+patMHjs7dPI9mFOGUKbhrgKm0S3EjW3scMFuQmWSROw==",
+ "_location": "/gauge",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "gauge@^4.0.0",
+ "name": "gauge",
+ "escapedName": "gauge",
+ "rawSpec": "^4.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^4.0.0"
+ },
+ "_requiredBy": [
+ "/npmlog"
+ ],
+ "_resolved": "https://registry.npmjs.org/gauge/-/gauge-4.0.0.tgz",
+ "_shasum": "afba07aa0374a93c6219603b1fb83eaa2264d8f8",
+ "_spec": "gauge@^4.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/npmlog",
+ "author": {
+ "name": "GitHub Inc."
+ },
+ "bugs": {
+ "url": "https://github.com/npm/gauge/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "ansi-regex": "^5.0.1",
+ "aproba": "^1.0.3 || ^2.0.0",
+ "color-support": "^1.1.2",
+ "console-control-strings": "^1.0.0",
+ "has-unicode": "^2.0.1",
+ "signal-exit": "^3.0.0",
+ "string-width": "^4.2.3",
+ "strip-ansi": "^6.0.1",
+ "wide-align": "^1.1.2"
+ },
+ "deprecated": false,
+ "description": "A terminal based horizontal gauge",
+ "devDependencies": {
+ "@npmcli/template-oss": "^2.3.0",
+ "readable-stream": "^3.6.0",
+ "tap": "^15.0.10"
+ },
+ "engines": {
+ "node": "^12.13.0 || ^14.15.0 || >=16"
+ },
+ "files": [
+ "bin",
+ "lib"
+ ],
+ "homepage": "https://github.com/npm/gauge",
+ "keywords": [
+ "progressbar",
+ "progress",
+ "gauge"
+ ],
+ "license": "ISC",
+ "main": "lib",
+ "name": "gauge",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/npm/gauge.git"
+ },
+ "scripts": {
+ "lint": "eslint '**/*.js'",
+ "lintfix": "npm run lint -- --fix",
+ "postlint": "npm-template-check",
+ "posttest": "npm run lint",
+ "postversion": "npm publish",
+ "prepublishOnly": "git push origin --follow-tags",
+ "preversion": "npm test",
+ "snap": "tap",
+ "test": "tap"
+ },
+ "tap": {
+ "branches": 79,
+ "statements": 89,
+ "functions": 92,
+ "lines": 90
+ },
+ "templateVersion": "2.3.0",
+ "version": "4.0.0"
+}
diff --git a/backend/node_modules/glob/LICENSE b/backend/node_modules/glob/LICENSE
new file mode 100644
index 0000000..42ca266
--- /dev/null
+++ b/backend/node_modules/glob/LICENSE
@@ -0,0 +1,21 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+## Glob Logo
+
+Glob's logo created by Tanya Brassie <http://tanyabrassie.com/>, licensed
+under a Creative Commons Attribution-ShareAlike 4.0 International License
+https://creativecommons.org/licenses/by-sa/4.0/
diff --git a/backend/node_modules/glob/README.md b/backend/node_modules/glob/README.md
new file mode 100644
index 0000000..83f0c83
--- /dev/null
+++ b/backend/node_modules/glob/README.md
@@ -0,0 +1,378 @@
+# Glob
+
+Match files using the patterns the shell uses, like stars and stuff.
+
+[](https://travis-ci.org/isaacs/node-glob/) [](https://ci.appveyor.com/project/isaacs/node-glob) [](https://coveralls.io/github/isaacs/node-glob?branch=master)
+
+This is a glob implementation in JavaScript. It uses the `minimatch`
+library to do its matching.
+
+
+
+## Usage
+
+Install with npm
+
+```
+npm i glob
+```
+
+```javascript
+var glob = require("glob")
+
+// options is optional
+glob("**/*.js", options, function (er, files) {
+ // files is an array of filenames.
+ // If the `nonull` option is set, and nothing
+ // was found, then files is ["**/*.js"]
+ // er is an error object or null.
+})
+```
+
+## Glob Primer
+
+"Globs" are the patterns you type when you do stuff like `ls *.js` on
+the command line, or put `build/*` in a `.gitignore` file.
+
+Before parsing the path part patterns, braced sections are expanded
+into a set. Braced sections start with `{` and end with `}`, with any
+number of comma-delimited sections within. Braced sections may contain
+slash characters, so `a{/b/c,bcd}` would expand into `a/b/c` and `abcd`.
+
+The following characters have special magic meaning when used in a
+path portion:
+
+* `*` Matches 0 or more characters in a single path portion
+* `?` Matches 1 character
+* `[...]` Matches a range of characters, similar to a RegExp range.
+ If the first character of the range is `!` or `^` then it matches
+ any character not in the range.
+* `!(pattern|pattern|pattern)` Matches anything that does not match
+ any of the patterns provided.
+* `?(pattern|pattern|pattern)` Matches zero or one occurrence of the
+ patterns provided.
+* `+(pattern|pattern|pattern)` Matches one or more occurrences of the
+ patterns provided.
+* `*(a|b|c)` Matches zero or more occurrences of the patterns provided
+* `@(pattern|pat*|pat?erN)` Matches exactly one of the patterns
+ provided
+* `**` If a "globstar" is alone in a path portion, then it matches
+ zero or more directories and subdirectories searching for matches.
+ It does not crawl symlinked directories.
+
+### Dots
+
+If a file or directory path portion has a `.` as the first character,
+then it will not match any glob pattern unless that pattern's
+corresponding path part also has a `.` as its first character.
+
+For example, the pattern `a/.*/c` would match the file at `a/.b/c`.
+However the pattern `a/*/c` would not, because `*` does not start with
+a dot character.
+
+You can make glob treat dots as normal characters by setting
+`dot:true` in the options.
+
+### Basename Matching
+
+If you set `matchBase:true` in the options, and the pattern has no
+slashes in it, then it will seek for any file anywhere in the tree
+with a matching basename. For example, `*.js` would match
+`test/simple/basic.js`.
+
+### Empty Sets
+
+If no matching files are found, then an empty array is returned. This
+differs from the shell, where the pattern itself is returned. For
+example:
+
+ $ echo a*s*d*f
+ a*s*d*f
+
+To get the bash-style behavior, set the `nonull:true` in the options.
+
+### See Also:
+
+* `man sh`
+* `man bash` (Search for "Pattern Matching")
+* `man 3 fnmatch`
+* `man 5 gitignore`
+* [minimatch documentation](https://github.com/isaacs/minimatch)
+
+## glob.hasMagic(pattern, [options])
+
+Returns `true` if there are any special characters in the pattern, and
+`false` otherwise.
+
+Note that the options affect the results. If `noext:true` is set in
+the options object, then `+(a|b)` will not be considered a magic
+pattern. If the pattern has a brace expansion, like `a/{b/c,x/y}`
+then that is considered magical, unless `nobrace:true` is set in the
+options.
+
+## glob(pattern, [options], cb)
+
+* `pattern` `{String}` Pattern to be matched
+* `options` `{Object}`
+* `cb` `{Function}`
+ * `err` `{Error | null}`
+ * `matches` `{Array<String>}` filenames found matching the pattern
+
+Perform an asynchronous glob search.
+
+## glob.sync(pattern, [options])
+
+* `pattern` `{String}` Pattern to be matched
+* `options` `{Object}`
+* return: `{Array<String>}` filenames found matching the pattern
+
+Perform a synchronous glob search.
+
+## Class: glob.Glob
+
+Create a Glob object by instantiating the `glob.Glob` class.
+
+```javascript
+var Glob = require("glob").Glob
+var mg = new Glob(pattern, options, cb)
+```
+
+It's an EventEmitter, and starts walking the filesystem to find matches
+immediately.
+
+### new glob.Glob(pattern, [options], [cb])
+
+* `pattern` `{String}` pattern to search for
+* `options` `{Object}`
+* `cb` `{Function}` Called when an error occurs, or matches are found
+ * `err` `{Error | null}`
+ * `matches` `{Array<String>}` filenames found matching the pattern
+
+Note that if the `sync` flag is set in the options, then matches will
+be immediately available on the `g.found` member.
+
+### Properties
+
+* `minimatch` The minimatch object that the glob uses.
+* `options` The options object passed in.
+* `aborted` Boolean which is set to true when calling `abort()`. There
+ is no way at this time to continue a glob search after aborting, but
+ you can re-use the statCache to avoid having to duplicate syscalls.
+* `cache` Convenience object. Each field has the following possible
+ values:
+ * `false` - Path does not exist
+ * `true` - Path exists
+ * `'FILE'` - Path exists, and is not a directory
+ * `'DIR'` - Path exists, and is a directory
+ * `[file, entries, ...]` - Path exists, is a directory, and the
+ array value is the results of `fs.readdir`
+* `statCache` Cache of `fs.stat` results, to prevent statting the same
+ path multiple times.
+* `symlinks` A record of which paths are symbolic links, which is
+ relevant in resolving `**` patterns.
+* `realpathCache` An optional object which is passed to `fs.realpath`
+ to minimize unnecessary syscalls. It is stored on the instantiated
+ Glob object, and may be re-used.
+
+### Events
+
+* `end` When the matching is finished, this is emitted with all the
+ matches found. If the `nonull` option is set, and no match was found,
+ then the `matches` list contains the original pattern. The matches
+ are sorted, unless the `nosort` flag is set.
+* `match` Every time a match is found, this is emitted with the specific
+ thing that matched. It is not deduplicated or resolved to a realpath.
+* `error` Emitted when an unexpected error is encountered, or whenever
+ any fs error occurs if `options.strict` is set.
+* `abort` When `abort()` is called, this event is raised.
+
+### Methods
+
+* `pause` Temporarily stop the search
+* `resume` Resume the search
+* `abort` Stop the search forever
+
+### Options
+
+All the options that can be passed to Minimatch can also be passed to
+Glob to change pattern matching behavior. Also, some have been added,
+or have glob-specific ramifications.
+
+All options are false by default, unless otherwise noted.
+
+All options are added to the Glob object, as well.
+
+If you are running many `glob` operations, you can pass a Glob object
+as the `options` argument to a subsequent operation to shortcut some
+`stat` and `readdir` calls. At the very least, you may pass in shared
+`symlinks`, `statCache`, `realpathCache`, and `cache` options, so that
+parallel glob operations will be sped up by sharing information about
+the filesystem.
+
+* `cwd` The current working directory in which to search. Defaults
+ to `process.cwd()`.
+* `root` The place where patterns starting with `/` will be mounted
+ onto. Defaults to `path.resolve(options.cwd, "/")` (`/` on Unix
+ systems, and `C:\` or some such on Windows.)
+* `dot` Include `.dot` files in normal matches and `globstar` matches.
+ Note that an explicit dot in a portion of the pattern will always
+ match dot files.
+* `nomount` By default, a pattern starting with a forward-slash will be
+ "mounted" onto the root setting, so that a valid filesystem path is
+ returned. Set this flag to disable that behavior.
+* `mark` Add a `/` character to directory matches. Note that this
+ requires additional stat calls.
+* `nosort` Don't sort the results.
+* `stat` Set to true to stat *all* results. This reduces performance
+ somewhat, and is completely unnecessary, unless `readdir` is presumed
+ to be an untrustworthy indicator of file existence.
+* `silent` When an unusual error is encountered when attempting to
+ read a directory, a warning will be printed to stderr. Set the
+ `silent` option to true to suppress these warnings.
+* `strict` When an unusual error is encountered when attempting to
+ read a directory, the process will just continue on in search of
+ other matches. Set the `strict` option to raise an error in these
+ cases.
+* `cache` See `cache` property above. Pass in a previously generated
+ cache object to save some fs calls.
+* `statCache` A cache of results of filesystem information, to prevent
+ unnecessary stat calls. While it should not normally be necessary
+ to set this, you may pass the statCache from one glob() call to the
+ options object of another, if you know that the filesystem will not
+ change between calls. (See "Race Conditions" below.)
+* `symlinks` A cache of known symbolic links. You may pass in a
+ previously generated `symlinks` object to save `lstat` calls when
+ resolving `**` matches.
+* `sync` DEPRECATED: use `glob.sync(pattern, opts)` instead.
+* `nounique` In some cases, brace-expanded patterns can result in the
+ same file showing up multiple times in the result set. By default,
+ this implementation prevents duplicates in the result set. Set this
+ flag to disable that behavior.
+* `nonull` Set to never return an empty set, instead returning a set
+ containing the pattern itself. This is the default in glob(3).
+* `debug` Set to enable debug logging in minimatch and glob.
+* `nobrace` Do not expand `{a,b}` and `{1..3}` brace sets.
+* `noglobstar` Do not match `**` against multiple filenames. (Ie,
+ treat it as a normal `*` instead.)
+* `noext` Do not match `+(a|b)` "extglob" patterns.
+* `nocase` Perform a case-insensitive match. Note: on
+ case-insensitive filesystems, non-magic patterns will match by
+ default, since `stat` and `readdir` will not raise errors.
+* `matchBase` Perform a basename-only match if the pattern does not
+ contain any slash characters. That is, `*.js` would be treated as
+ equivalent to `**/*.js`, matching all js files in all directories.
+* `nodir` Do not match directories, only files. (Note: to match
+ *only* directories, simply put a `/` at the end of the pattern.)
+* `ignore` Add a pattern or an array of glob patterns to exclude matches.
+ Note: `ignore` patterns are *always* in `dot:true` mode, regardless
+ of any other settings.
+* `follow` Follow symlinked directories when expanding `**` patterns.
+ Note that this can result in a lot of duplicate references in the
+ presence of cyclic links.
+* `realpath` Set to true to call `fs.realpath` on all of the results.
+ In the case of a symlink that cannot be resolved, the full absolute
+ path to the matched entry is returned (though it will usually be a
+ broken symlink)
+* `absolute` Set to true to always receive absolute paths for matched
+ files. Unlike `realpath`, this also affects the values returned in
+ the `match` event.
+* `fs` File-system object with Node's `fs` API. By default, the built-in
+ `fs` module will be used. Set to a volume provided by a library like
+ `memfs` to avoid using the "real" file-system.
+
+## Comparisons to other fnmatch/glob implementations
+
+While strict compliance with the existing standards is a worthwhile
+goal, some discrepancies exist between node-glob and other
+implementations, and are intentional.
+
+The double-star character `**` is supported by default, unless the
+`noglobstar` flag is set. This is supported in the manner of bsdglob
+and bash 4.3, where `**` only has special significance if it is the only
+thing in a path part. That is, `a/**/b` will match `a/x/y/b`, but
+`a/**b` will not.
+
+Note that symlinked directories are not crawled as part of a `**`,
+though their contents may match against subsequent portions of the
+pattern. This prevents infinite loops and duplicates and the like.
+
+If an escaped pattern has no matches, and the `nonull` flag is set,
+then glob returns the pattern as-provided, rather than
+interpreting the character escapes. For example,
+`glob.match([], "\\*a\\?")` will return `"\\*a\\?"` rather than
+`"*a?"`. This is akin to setting the `nullglob` option in bash, except
+that it does not resolve escaped pattern characters.
+
+If brace expansion is not disabled, then it is performed before any
+other interpretation of the glob pattern. Thus, a pattern like
+`+(a|{b),c)}`, which would not be valid in bash or zsh, is expanded
+**first** into the set of `+(a|b)` and `+(a|c)`, and those patterns are
+checked for validity. Since those two are valid, matching proceeds.
+
+### Comments and Negation
+
+Previously, this module let you mark a pattern as a "comment" if it
+started with a `#` character, or a "negated" pattern if it started
+with a `!` character.
+
+These options were deprecated in version 5, and removed in version 6.
+
+To specify things that should not match, use the `ignore` option.
+
+## Windows
+
+**Please only use forward-slashes in glob expressions.**
+
+Though windows uses either `/` or `\` as its path separator, only `/`
+characters are used by this glob implementation. You must use
+forward-slashes **only** in glob expressions. Back-slashes will always
+be interpreted as escape characters, not path separators.
+
+Results from absolute patterns such as `/foo/*` are mounted onto the
+root setting using `path.join`. On windows, this will by default result
+in `/foo/*` matching `C:\foo\bar.txt`.
+
+## Race Conditions
+
+Glob searching, by its very nature, is susceptible to race conditions,
+since it relies on directory walking and such.
+
+As a result, it is possible that a file that exists when glob looks for
+it may have been deleted or modified by the time it returns the result.
+
+As part of its internal implementation, this program caches all stat
+and readdir calls that it makes, in order to cut down on system
+overhead. However, this also makes it even more susceptible to races,
+especially if the cache or statCache objects are reused between glob
+calls.
+
+Users are thus advised not to use a glob result as a guarantee of
+filesystem state in the face of rapid changes. For the vast majority
+of operations, this is never a problem.
+
+## Glob Logo
+Glob's logo was created by [Tanya Brassie](http://tanyabrassie.com/). Logo files can be found [here](https://github.com/isaacs/node-glob/tree/master/logo).
+
+The logo is licensed under a [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/).
+
+## Contributing
+
+Any change to behavior (including bugfixes) must come with a test.
+
+Patches that fail tests or reduce performance will be rejected.
+
+```
+# to run tests
+npm test
+
+# to re-generate test fixtures
+npm run test-regen
+
+# to benchmark against bash/zsh
+npm run bench
+
+# to profile javascript
+npm run prof
+```
+
+
diff --git a/backend/node_modules/glob/common.js b/backend/node_modules/glob/common.js
new file mode 100644
index 0000000..8e363b6
--- /dev/null
+++ b/backend/node_modules/glob/common.js
@@ -0,0 +1,236 @@
+exports.setopts = setopts
+exports.ownProp = ownProp
+exports.makeAbs = makeAbs
+exports.finish = finish
+exports.mark = mark
+exports.isIgnored = isIgnored
+exports.childrenIgnored = childrenIgnored
+
+function ownProp (obj, field) {
+ return Object.prototype.hasOwnProperty.call(obj, field)
+}
+
+var fs = require("fs")
+var path = require("path")
+var minimatch = require("minimatch")
+var isAbsolute = require("path-is-absolute")
+var Minimatch = minimatch.Minimatch
+
+function alphasort (a, b) {
+ return a.localeCompare(b, 'en')
+}
+
+function setupIgnores (self, options) {
+ self.ignore = options.ignore || []
+
+ if (!Array.isArray(self.ignore))
+ self.ignore = [self.ignore]
+
+ if (self.ignore.length) {
+ self.ignore = self.ignore.map(ignoreMap)
+ }
+}
+
+// ignore patterns are always in dot:true mode.
+function ignoreMap (pattern) {
+ var gmatcher = null
+ if (pattern.slice(-3) === '/**') {
+ var gpattern = pattern.replace(/(\/\*\*)+$/, '')
+ gmatcher = new Minimatch(gpattern, { dot: true })
+ }
+
+ return {
+ matcher: new Minimatch(pattern, { dot: true }),
+ gmatcher: gmatcher
+ }
+}
+
+function setopts (self, pattern, options) {
+ if (!options)
+ options = {}
+
+ // base-matching: just use globstar for that.
+ if (options.matchBase && -1 === pattern.indexOf("/")) {
+ if (options.noglobstar) {
+ throw new Error("base matching requires globstar")
+ }
+ pattern = "**/" + pattern
+ }
+
+ self.silent = !!options.silent
+ self.pattern = pattern
+ self.strict = options.strict !== false
+ self.realpath = !!options.realpath
+ self.realpathCache = options.realpathCache || Object.create(null)
+ self.follow = !!options.follow
+ self.dot = !!options.dot
+ self.mark = !!options.mark
+ self.nodir = !!options.nodir
+ if (self.nodir)
+ self.mark = true
+ self.sync = !!options.sync
+ self.nounique = !!options.nounique
+ self.nonull = !!options.nonull
+ self.nosort = !!options.nosort
+ self.nocase = !!options.nocase
+ self.stat = !!options.stat
+ self.noprocess = !!options.noprocess
+ self.absolute = !!options.absolute
+ self.fs = options.fs || fs
+
+ self.maxLength = options.maxLength || Infinity
+ self.cache = options.cache || Object.create(null)
+ self.statCache = options.statCache || Object.create(null)
+ self.symlinks = options.symlinks || Object.create(null)
+
+ setupIgnores(self, options)
+
+ self.changedCwd = false
+ var cwd = process.cwd()
+ if (!ownProp(options, "cwd"))
+ self.cwd = cwd
+ else {
+ self.cwd = path.resolve(options.cwd)
+ self.changedCwd = self.cwd !== cwd
+ }
+
+ self.root = options.root || path.resolve(self.cwd, "/")
+ self.root = path.resolve(self.root)
+ if (process.platform === "win32")
+ self.root = self.root.replace(/\\/g, "/")
+
+ // TODO: is an absolute `cwd` supposed to be resolved against `root`?
+ // e.g. { cwd: '/test', root: __dirname } === path.join(__dirname, '/test')
+ self.cwdAbs = isAbsolute(self.cwd) ? self.cwd : makeAbs(self, self.cwd)
+ if (process.platform === "win32")
+ self.cwdAbs = self.cwdAbs.replace(/\\/g, "/")
+ self.nomount = !!options.nomount
+
+ // disable comments and negation in Minimatch.
+ // Note that they are not supported in Glob itself anyway.
+ options.nonegate = true
+ options.nocomment = true
+
+ self.minimatch = new Minimatch(pattern, options)
+ self.options = self.minimatch.options
+}
+
+function finish (self) {
+ var nou = self.nounique
+ var all = nou ? [] : Object.create(null)
+
+ for (var i = 0, l = self.matches.length; i < l; i ++) {
+ var matches = self.matches[i]
+ if (!matches || Object.keys(matches).length === 0) {
+ if (self.nonull) {
+ // do like the shell, and spit out the literal glob
+ var literal = self.minimatch.globSet[i]
+ if (nou)
+ all.push(literal)
+ else
+ all[literal] = true
+ }
+ } else {
+ // had matches
+ var m = Object.keys(matches)
+ if (nou)
+ all.push.apply(all, m)
+ else
+ m.forEach(function (m) {
+ all[m] = true
+ })
+ }
+ }
+
+ if (!nou)
+ all = Object.keys(all)
+
+ if (!self.nosort)
+ all = all.sort(alphasort)
+
+ // at *some* point we statted all of these
+ if (self.mark) {
+ for (var i = 0; i < all.length; i++) {
+ all[i] = self._mark(all[i])
+ }
+ if (self.nodir) {
+ all = all.filter(function (e) {
+ var notDir = !(/\/$/.test(e))
+ var c = self.cache[e] || self.cache[makeAbs(self, e)]
+ if (notDir && c)
+ notDir = c !== 'DIR' && !Array.isArray(c)
+ return notDir
+ })
+ }
+ }
+
+ if (self.ignore.length)
+ all = all.filter(function(m) {
+ return !isIgnored(self, m)
+ })
+
+ self.found = all
+}
+
+function mark (self, p) {
+ var abs = makeAbs(self, p)
+ var c = self.cache[abs]
+ var m = p
+ if (c) {
+ var isDir = c === 'DIR' || Array.isArray(c)
+ var slash = p.slice(-1) === '/'
+
+ if (isDir && !slash)
+ m += '/'
+ else if (!isDir && slash)
+ m = m.slice(0, -1)
+
+ if (m !== p) {
+ var mabs = makeAbs(self, m)
+ self.statCache[mabs] = self.statCache[abs]
+ self.cache[mabs] = self.cache[abs]
+ }
+ }
+
+ return m
+}
+
+// lotta situps...
+function makeAbs (self, f) {
+ var abs = f
+ if (f.charAt(0) === '/') {
+ abs = path.join(self.root, f)
+ } else if (isAbsolute(f) || f === '') {
+ abs = f
+ } else if (self.changedCwd) {
+ abs = path.resolve(self.cwd, f)
+ } else {
+ abs = path.resolve(f)
+ }
+
+ if (process.platform === 'win32')
+ abs = abs.replace(/\\/g, '/')
+
+ return abs
+}
+
+
+// Return true, if pattern ends with globstar '**', for the accompanying parent directory.
+// Ex:- If node_modules/** is the pattern, add 'node_modules' to ignore list along with it's contents
+function isIgnored (self, path) {
+ if (!self.ignore.length)
+ return false
+
+ return self.ignore.some(function(item) {
+ return item.matcher.match(path) || !!(item.gmatcher && item.gmatcher.match(path))
+ })
+}
+
+function childrenIgnored (self, path) {
+ if (!self.ignore.length)
+ return false
+
+ return self.ignore.some(function(item) {
+ return !!(item.gmatcher && item.gmatcher.match(path))
+ })
+}
diff --git a/backend/node_modules/glob/glob.js b/backend/node_modules/glob/glob.js
new file mode 100644
index 0000000..afcf827
--- /dev/null
+++ b/backend/node_modules/glob/glob.js
@@ -0,0 +1,787 @@
+// Approach:
+//
+// 1. Get the minimatch set
+// 2. For each pattern in the set, PROCESS(pattern, false)
+// 3. Store matches per-set, then uniq them
+//
+// PROCESS(pattern, inGlobStar)
+// Get the first [n] items from pattern that are all strings
+// Join these together. This is PREFIX.
+// If there is no more remaining, then stat(PREFIX) and
+// add to matches if it succeeds. END.
+//
+// If inGlobStar and PREFIX is symlink and points to dir
+// set ENTRIES = []
+// else readdir(PREFIX) as ENTRIES
+// If fail, END
+//
+// with ENTRIES
+// If pattern[n] is GLOBSTAR
+// // handle the case where the globstar match is empty
+// // by pruning it out, and testing the resulting pattern
+// PROCESS(pattern[0..n] + pattern[n+1 .. $], false)
+// // handle other cases.
+// for ENTRY in ENTRIES (not dotfiles)
+// // attach globstar + tail onto the entry
+// // Mark that this entry is a globstar match
+// PROCESS(pattern[0..n] + ENTRY + pattern[n .. $], true)
+//
+// else // not globstar
+// for ENTRY in ENTRIES (not dotfiles, unless pattern[n] is dot)
+// Test ENTRY against pattern[n]
+// If fails, continue
+// If passes, PROCESS(pattern[0..n] + item + pattern[n+1 .. $])
+//
+// Caveat:
+// Cache all stats and readdirs results to minimize syscall. Since all
+// we ever care about is existence and directory-ness, we can just keep
+// `true` for files, and [children,...] for directories, or `false` for
+// things that don't exist.
+
+module.exports = glob
+
+var rp = require('fs.realpath')
+var minimatch = require('minimatch')
+var Minimatch = minimatch.Minimatch
+var inherits = require('inherits')
+var EE = require('events').EventEmitter
+var path = require('path')
+var assert = require('assert')
+var isAbsolute = require('path-is-absolute')
+var globSync = require('./sync.js')
+var common = require('./common.js')
+var setopts = common.setopts
+var ownProp = common.ownProp
+var inflight = require('inflight')
+var util = require('util')
+var childrenIgnored = common.childrenIgnored
+var isIgnored = common.isIgnored
+
+var once = require('once')
+
+function glob (pattern, options, cb) {
+ if (typeof options === 'function') cb = options, options = {}
+ if (!options) options = {}
+
+ if (options.sync) {
+ if (cb)
+ throw new TypeError('callback provided to sync glob')
+ return globSync(pattern, options)
+ }
+
+ return new Glob(pattern, options, cb)
+}
+
+glob.sync = globSync
+var GlobSync = glob.GlobSync = globSync.GlobSync
+
+// old api surface
+glob.glob = glob
+
+function extend (origin, add) {
+ if (add === null || typeof add !== 'object') {
+ return origin
+ }
+
+ var keys = Object.keys(add)
+ var i = keys.length
+ while (i--) {
+ origin[keys[i]] = add[keys[i]]
+ }
+ return origin
+}
+
+glob.hasMagic = function (pattern, options_) {
+ var options = extend({}, options_)
+ options.noprocess = true
+
+ var g = new Glob(pattern, options)
+ var set = g.minimatch.set
+
+ if (!pattern)
+ return false
+
+ if (set.length > 1)
+ return true
+
+ for (var j = 0; j < set[0].length; j++) {
+ if (typeof set[0][j] !== 'string')
+ return true
+ }
+
+ return false
+}
+
+glob.Glob = Glob
+inherits(Glob, EE)
+function Glob (pattern, options, cb) {
+ if (typeof options === 'function') {
+ cb = options
+ options = null
+ }
+
+ if (options && options.sync) {
+ if (cb)
+ throw new TypeError('callback provided to sync glob')
+ return new GlobSync(pattern, options)
+ }
+
+ if (!(this instanceof Glob))
+ return new Glob(pattern, options, cb)
+
+ setopts(this, pattern, options)
+ this._didRealPath = false
+
+ // process each pattern in the minimatch set
+ var n = this.minimatch.set.length
+
+ // The matches are stored as {<filename>: true,...} so that
+ // duplicates are automagically pruned.
+ // Later, we do an Object.keys() on these.
+ // Keep them as a list so we can fill in when nonull is set.
+ this.matches = new Array(n)
+
+ if (typeof cb === 'function') {
+ cb = once(cb)
+ this.on('error', cb)
+ this.on('end', function (matches) {
+ cb(null, matches)
+ })
+ }
+
+ var self = this
+ this._processing = 0
+
+ this._emitQueue = []
+ this._processQueue = []
+ this.paused = false
+
+ if (this.noprocess)
+ return this
+
+ if (n === 0)
+ return done()
+
+ var sync = true
+ for (var i = 0; i < n; i ++) {
+ this._process(this.minimatch.set[i], i, false, done)
+ }
+ sync = false
+
+ function done () {
+ --self._processing
+ if (self._processing <= 0) {
+ if (sync) {
+ process.nextTick(function () {
+ self._finish()
+ })
+ } else {
+ self._finish()
+ }
+ }
+ }
+}
+
+Glob.prototype._finish = function () {
+ assert(this instanceof Glob)
+ if (this.aborted)
+ return
+
+ if (this.realpath && !this._didRealpath)
+ return this._realpath()
+
+ common.finish(this)
+ this.emit('end', this.found)
+}
+
+Glob.prototype._realpath = function () {
+ if (this._didRealpath)
+ return
+
+ this._didRealpath = true
+
+ var n = this.matches.length
+ if (n === 0)
+ return this._finish()
+
+ var self = this
+ for (var i = 0; i < this.matches.length; i++)
+ this._realpathSet(i, next)
+
+ function next () {
+ if (--n === 0)
+ self._finish()
+ }
+}
+
+Glob.prototype._realpathSet = function (index, cb) {
+ var matchset = this.matches[index]
+ if (!matchset)
+ return cb()
+
+ var found = Object.keys(matchset)
+ var self = this
+ var n = found.length
+
+ if (n === 0)
+ return cb()
+
+ var set = this.matches[index] = Object.create(null)
+ found.forEach(function (p, i) {
+ // If there's a problem with the stat, then it means that
+ // one or more of the links in the realpath couldn't be
+ // resolved. just return the abs value in that case.
+ p = self._makeAbs(p)
+ rp.realpath(p, self.realpathCache, function (er, real) {
+ if (!er)
+ set[real] = true
+ else if (er.syscall === 'stat')
+ set[p] = true
+ else
+ self.emit('error', er) // srsly wtf right here
+
+ if (--n === 0) {
+ self.matches[index] = set
+ cb()
+ }
+ })
+ })
+}
+
+Glob.prototype._mark = function (p) {
+ return common.mark(this, p)
+}
+
+Glob.prototype._makeAbs = function (f) {
+ return common.makeAbs(this, f)
+}
+
+Glob.prototype.abort = function () {
+ this.aborted = true
+ this.emit('abort')
+}
+
+Glob.prototype.pause = function () {
+ if (!this.paused) {
+ this.paused = true
+ this.emit('pause')
+ }
+}
+
+Glob.prototype.resume = function () {
+ if (this.paused) {
+ this.emit('resume')
+ this.paused = false
+ if (this._emitQueue.length) {
+ var eq = this._emitQueue.slice(0)
+ this._emitQueue.length = 0
+ for (var i = 0; i < eq.length; i ++) {
+ var e = eq[i]
+ this._emitMatch(e[0], e[1])
+ }
+ }
+ if (this._processQueue.length) {
+ var pq = this._processQueue.slice(0)
+ this._processQueue.length = 0
+ for (var i = 0; i < pq.length; i ++) {
+ var p = pq[i]
+ this._processing--
+ this._process(p[0], p[1], p[2], p[3])
+ }
+ }
+ }
+}
+
+Glob.prototype._process = function (pattern, index, inGlobStar, cb) {
+ assert(this instanceof Glob)
+ assert(typeof cb === 'function')
+
+ if (this.aborted)
+ return
+
+ this._processing++
+ if (this.paused) {
+ this._processQueue.push([pattern, index, inGlobStar, cb])
+ return
+ }
+
+ //console.error('PROCESS %d', this._processing, pattern)
+
+ // Get the first [n] parts of pattern that are all strings.
+ var n = 0
+ while (typeof pattern[n] === 'string') {
+ n ++
+ }
+ // now n is the index of the first one that is *not* a string.
+
+ // see if there's anything else
+ var prefix
+ switch (n) {
+ // if not, then this is rather simple
+ case pattern.length:
+ this._processSimple(pattern.join('/'), index, cb)
+ return
+
+ case 0:
+ // pattern *starts* with some non-trivial item.
+ // going to readdir(cwd), but not include the prefix in matches.
+ prefix = null
+ break
+
+ default:
+ // pattern has some string bits in the front.
+ // whatever it starts with, whether that's 'absolute' like /foo/bar,
+ // or 'relative' like '../baz'
+ prefix = pattern.slice(0, n).join('/')
+ break
+ }
+
+ var remain = pattern.slice(n)
+
+ // get the list of entries.
+ var read
+ if (prefix === null)
+ read = '.'
+ else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) {
+ if (!prefix || !isAbsolute(prefix))
+ prefix = '/' + prefix
+ read = prefix
+ } else
+ read = prefix
+
+ var abs = this._makeAbs(read)
+
+ //if ignored, skip _processing
+ if (childrenIgnored(this, read))
+ return cb()
+
+ var isGlobStar = remain[0] === minimatch.GLOBSTAR
+ if (isGlobStar)
+ this._processGlobStar(prefix, read, abs, remain, index, inGlobStar, cb)
+ else
+ this._processReaddir(prefix, read, abs, remain, index, inGlobStar, cb)
+}
+
+Glob.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar, cb) {
+ var self = this
+ this._readdir(abs, inGlobStar, function (er, entries) {
+ return self._processReaddir2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
+ })
+}
+
+Glob.prototype._processReaddir2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
+
+ // if the abs isn't a dir, then nothing can match!
+ if (!entries)
+ return cb()
+
+ // It will only match dot entries if it starts with a dot, or if
+ // dot is set. Stuff like @(.foo|.bar) isn't allowed.
+ var pn = remain[0]
+ var negate = !!this.minimatch.negate
+ var rawGlob = pn._glob
+ var dotOk = this.dot || rawGlob.charAt(0) === '.'
+
+ var matchedEntries = []
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i]
+ if (e.charAt(0) !== '.' || dotOk) {
+ var m
+ if (negate && !prefix) {
+ m = !e.match(pn)
+ } else {
+ m = e.match(pn)
+ }
+ if (m)
+ matchedEntries.push(e)
+ }
+ }
+
+ //console.error('prd2', prefix, entries, remain[0]._glob, matchedEntries)
+
+ var len = matchedEntries.length
+ // If there are no matched entries, then nothing matches.
+ if (len === 0)
+ return cb()
+
+ // if this is the last remaining pattern bit, then no need for
+ // an additional stat *unless* the user has specified mark or
+ // stat explicitly. We know they exist, since readdir returned
+ // them.
+
+ if (remain.length === 1 && !this.mark && !this.stat) {
+ if (!this.matches[index])
+ this.matches[index] = Object.create(null)
+
+ for (var i = 0; i < len; i ++) {
+ var e = matchedEntries[i]
+ if (prefix) {
+ if (prefix !== '/')
+ e = prefix + '/' + e
+ else
+ e = prefix + e
+ }
+
+ if (e.charAt(0) === '/' && !this.nomount) {
+ e = path.join(this.root, e)
+ }
+ this._emitMatch(index, e)
+ }
+ // This was the last one, and no stats were needed
+ return cb()
+ }
+
+ // now test all matched entries as stand-ins for that part
+ // of the pattern.
+ remain.shift()
+ for (var i = 0; i < len; i ++) {
+ var e = matchedEntries[i]
+ var newPattern
+ if (prefix) {
+ if (prefix !== '/')
+ e = prefix + '/' + e
+ else
+ e = prefix + e
+ }
+ this._process([e].concat(remain), index, inGlobStar, cb)
+ }
+ cb()
+}
+
+Glob.prototype._emitMatch = function (index, e) {
+ if (this.aborted)
+ return
+
+ if (isIgnored(this, e))
+ return
+
+ if (this.paused) {
+ this._emitQueue.push([index, e])
+ return
+ }
+
+ var abs = isAbsolute(e) ? e : this._makeAbs(e)
+
+ if (this.mark)
+ e = this._mark(e)
+
+ if (this.absolute)
+ e = abs
+
+ if (this.matches[index][e])
+ return
+
+ if (this.nodir) {
+ var c = this.cache[abs]
+ if (c === 'DIR' || Array.isArray(c))
+ return
+ }
+
+ this.matches[index][e] = true
+
+ var st = this.statCache[abs]
+ if (st)
+ this.emit('stat', e, st)
+
+ this.emit('match', e)
+}
+
+Glob.prototype._readdirInGlobStar = function (abs, cb) {
+ if (this.aborted)
+ return
+
+ // follow all symlinked directories forever
+ // just proceed as if this is a non-globstar situation
+ if (this.follow)
+ return this._readdir(abs, false, cb)
+
+ var lstatkey = 'lstat\0' + abs
+ var self = this
+ var lstatcb = inflight(lstatkey, lstatcb_)
+
+ if (lstatcb)
+ self.fs.lstat(abs, lstatcb)
+
+ function lstatcb_ (er, lstat) {
+ if (er && er.code === 'ENOENT')
+ return cb()
+
+ var isSym = lstat && lstat.isSymbolicLink()
+ self.symlinks[abs] = isSym
+
+ // If it's not a symlink or a dir, then it's definitely a regular file.
+ // don't bother doing a readdir in that case.
+ if (!isSym && lstat && !lstat.isDirectory()) {
+ self.cache[abs] = 'FILE'
+ cb()
+ } else
+ self._readdir(abs, false, cb)
+ }
+}
+
+Glob.prototype._readdir = function (abs, inGlobStar, cb) {
+ if (this.aborted)
+ return
+
+ cb = inflight('readdir\0'+abs+'\0'+inGlobStar, cb)
+ if (!cb)
+ return
+
+ //console.error('RD %j %j', +inGlobStar, abs)
+ if (inGlobStar && !ownProp(this.symlinks, abs))
+ return this._readdirInGlobStar(abs, cb)
+
+ if (ownProp(this.cache, abs)) {
+ var c = this.cache[abs]
+ if (!c || c === 'FILE')
+ return cb()
+
+ if (Array.isArray(c))
+ return cb(null, c)
+ }
+
+ var self = this
+ self.fs.readdir(abs, readdirCb(this, abs, cb))
+}
+
+function readdirCb (self, abs, cb) {
+ return function (er, entries) {
+ if (er)
+ self._readdirError(abs, er, cb)
+ else
+ self._readdirEntries(abs, entries, cb)
+ }
+}
+
+Glob.prototype._readdirEntries = function (abs, entries, cb) {
+ if (this.aborted)
+ return
+
+ // if we haven't asked to stat everything, then just
+ // assume that everything in there exists, so we can avoid
+ // having to stat it a second time.
+ if (!this.mark && !this.stat) {
+ for (var i = 0; i < entries.length; i ++) {
+ var e = entries[i]
+ if (abs === '/')
+ e = abs + e
+ else
+ e = abs + '/' + e
+ this.cache[e] = true
+ }
+ }
+
+ this.cache[abs] = entries
+ return cb(null, entries)
+}
+
+Glob.prototype._readdirError = function (f, er, cb) {
+ if (this.aborted)
+ return
+
+ // handle errors, and cache the information
+ switch (er.code) {
+ case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
+ case 'ENOTDIR': // totally normal. means it *does* exist.
+ var abs = this._makeAbs(f)
+ this.cache[abs] = 'FILE'
+ if (abs === this.cwdAbs) {
+ var error = new Error(er.code + ' invalid cwd ' + this.cwd)
+ error.path = this.cwd
+ error.code = er.code
+ this.emit('error', error)
+ this.abort()
+ }
+ break
+
+ case 'ENOENT': // not terribly unusual
+ case 'ELOOP':
+ case 'ENAMETOOLONG':
+ case 'UNKNOWN':
+ this.cache[this._makeAbs(f)] = false
+ break
+
+ default: // some unusual error. Treat as failure.
+ this.cache[this._makeAbs(f)] = false
+ if (this.strict) {
+ this.emit('error', er)
+ // If the error is handled, then we abort
+ // if not, we threw out of here
+ this.abort()
+ }
+ if (!this.silent)
+ console.error('glob error', er)
+ break
+ }
+
+ return cb()
+}
+
+Glob.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar, cb) {
+ var self = this
+ this._readdir(abs, inGlobStar, function (er, entries) {
+ self._processGlobStar2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
+ })
+}
+
+
+Glob.prototype._processGlobStar2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
+ //console.error('pgs2', prefix, remain[0], entries)
+
+ // no entries means not a dir, so it can never have matches
+ // foo.txt/** doesn't match foo.txt
+ if (!entries)
+ return cb()
+
+ // test without the globstar, and with every child both below
+ // and replacing the globstar.
+ var remainWithoutGlobStar = remain.slice(1)
+ var gspref = prefix ? [ prefix ] : []
+ var noGlobStar = gspref.concat(remainWithoutGlobStar)
+
+ // the noGlobStar pattern exits the inGlobStar state
+ this._process(noGlobStar, index, false, cb)
+
+ var isSym = this.symlinks[abs]
+ var len = entries.length
+
+ // If it's a symlink, and we're in a globstar, then stop
+ if (isSym && inGlobStar)
+ return cb()
+
+ for (var i = 0; i < len; i++) {
+ var e = entries[i]
+ if (e.charAt(0) === '.' && !this.dot)
+ continue
+
+ // these two cases enter the inGlobStar state
+ var instead = gspref.concat(entries[i], remainWithoutGlobStar)
+ this._process(instead, index, true, cb)
+
+ var below = gspref.concat(entries[i], remain)
+ this._process(below, index, true, cb)
+ }
+
+ cb()
+}
+
+Glob.prototype._processSimple = function (prefix, index, cb) {
+ // XXX review this. Shouldn't it be doing the mounting etc
+ // before doing stat? kinda weird?
+ var self = this
+ this._stat(prefix, function (er, exists) {
+ self._processSimple2(prefix, index, er, exists, cb)
+ })
+}
+Glob.prototype._processSimple2 = function (prefix, index, er, exists, cb) {
+
+ //console.error('ps2', prefix, exists)
+
+ if (!this.matches[index])
+ this.matches[index] = Object.create(null)
+
+ // If it doesn't exist, then just mark the lack of results
+ if (!exists)
+ return cb()
+
+ if (prefix && isAbsolute(prefix) && !this.nomount) {
+ var trail = /[\/\\]$/.test(prefix)
+ if (prefix.charAt(0) === '/') {
+ prefix = path.join(this.root, prefix)
+ } else {
+ prefix = path.resolve(this.root, prefix)
+ if (trail)
+ prefix += '/'
+ }
+ }
+
+ if (process.platform === 'win32')
+ prefix = prefix.replace(/\\/g, '/')
+
+ // Mark this as a match
+ this._emitMatch(index, prefix)
+ cb()
+}
+
+// Returns either 'DIR', 'FILE', or false
+Glob.prototype._stat = function (f, cb) {
+ var abs = this._makeAbs(f)
+ var needDir = f.slice(-1) === '/'
+
+ if (f.length > this.maxLength)
+ return cb()
+
+ if (!this.stat && ownProp(this.cache, abs)) {
+ var c = this.cache[abs]
+
+ if (Array.isArray(c))
+ c = 'DIR'
+
+ // It exists, but maybe not how we need it
+ if (!needDir || c === 'DIR')
+ return cb(null, c)
+
+ if (needDir && c === 'FILE')
+ return cb()
+
+ // otherwise we have to stat, because maybe c=true
+ // if we know it exists, but not what it is.
+ }
+
+ var exists
+ var stat = this.statCache[abs]
+ if (stat !== undefined) {
+ if (stat === false)
+ return cb(null, stat)
+ else {
+ var type = stat.isDirectory() ? 'DIR' : 'FILE'
+ if (needDir && type === 'FILE')
+ return cb()
+ else
+ return cb(null, type, stat)
+ }
+ }
+
+ var self = this
+ var statcb = inflight('stat\0' + abs, lstatcb_)
+ if (statcb)
+ self.fs.lstat(abs, statcb)
+
+ function lstatcb_ (er, lstat) {
+ if (lstat && lstat.isSymbolicLink()) {
+ // If it's a symlink, then treat it as the target, unless
+ // the target does not exist, then treat it as a file.
+ return self.fs.stat(abs, function (er, stat) {
+ if (er)
+ self._stat2(f, abs, null, lstat, cb)
+ else
+ self._stat2(f, abs, er, stat, cb)
+ })
+ } else {
+ self._stat2(f, abs, er, lstat, cb)
+ }
+ }
+}
+
+Glob.prototype._stat2 = function (f, abs, er, stat, cb) {
+ if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
+ this.statCache[abs] = false
+ return cb()
+ }
+
+ var needDir = f.slice(-1) === '/'
+ this.statCache[abs] = stat
+
+ if (abs.slice(-1) === '/' && stat && !stat.isDirectory())
+ return cb(null, false, stat)
+
+ var c = true
+ if (stat)
+ c = stat.isDirectory() ? 'DIR' : 'FILE'
+ this.cache[abs] = this.cache[abs] || c
+
+ if (needDir && c === 'FILE')
+ return cb()
+
+ return cb(null, c, stat)
+}
diff --git a/backend/node_modules/glob/package.json b/backend/node_modules/glob/package.json
new file mode 100644
index 0000000..2eb36db
--- /dev/null
+++ b/backend/node_modules/glob/package.json
@@ -0,0 +1,85 @@
+{
+ "_from": "glob@^7.1.3",
+ "_id": "glob@7.2.0",
+ "_inBundle": false,
+ "_integrity": "sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==",
+ "_location": "/glob",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "glob@^7.1.3",
+ "name": "glob",
+ "escapedName": "glob",
+ "rawSpec": "^7.1.3",
+ "saveSpec": null,
+ "fetchSpec": "^7.1.3"
+ },
+ "_requiredBy": [
+ "/rimraf"
+ ],
+ "_resolved": "https://registry.npmjs.org/glob/-/glob-7.2.0.tgz",
+ "_shasum": "d15535af7732e02e948f4c41628bd910293f6023",
+ "_spec": "glob@^7.1.3",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/rimraf",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bugs": {
+ "url": "https://github.com/isaacs/node-glob/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "fs.realpath": "^1.0.0",
+ "inflight": "^1.0.4",
+ "inherits": "2",
+ "minimatch": "^3.0.4",
+ "once": "^1.3.0",
+ "path-is-absolute": "^1.0.0"
+ },
+ "deprecated": false,
+ "description": "a little globber",
+ "devDependencies": {
+ "memfs": "^3.2.0",
+ "mkdirp": "0",
+ "rimraf": "^2.2.8",
+ "tap": "^15.0.6",
+ "tick": "0.0.6"
+ },
+ "engines": {
+ "node": "*"
+ },
+ "files": [
+ "glob.js",
+ "sync.js",
+ "common.js"
+ ],
+ "funding": {
+ "url": "https://github.com/sponsors/isaacs"
+ },
+ "homepage": "https://github.com/isaacs/node-glob#readme",
+ "license": "ISC",
+ "main": "glob.js",
+ "name": "glob",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/isaacs/node-glob.git"
+ },
+ "scripts": {
+ "bench": "bash benchmark.sh",
+ "benchclean": "node benchclean.js",
+ "prepublish": "npm run benchclean",
+ "prof": "bash prof.sh && cat profile.txt",
+ "profclean": "rm -f v8.log profile.txt",
+ "test": "tap",
+ "test-regen": "npm run profclean && TEST_REGEN=1 node test/00-setup.js"
+ },
+ "tap": {
+ "before": "test/00-setup.js",
+ "after": "test/zz-cleanup.js",
+ "jobs": 1
+ },
+ "version": "7.2.0"
+}
diff --git a/backend/node_modules/glob/sync.js b/backend/node_modules/glob/sync.js
new file mode 100644
index 0000000..4f46f90
--- /dev/null
+++ b/backend/node_modules/glob/sync.js
@@ -0,0 +1,483 @@
+module.exports = globSync
+globSync.GlobSync = GlobSync
+
+var rp = require('fs.realpath')
+var minimatch = require('minimatch')
+var Minimatch = minimatch.Minimatch
+var Glob = require('./glob.js').Glob
+var util = require('util')
+var path = require('path')
+var assert = require('assert')
+var isAbsolute = require('path-is-absolute')
+var common = require('./common.js')
+var setopts = common.setopts
+var ownProp = common.ownProp
+var childrenIgnored = common.childrenIgnored
+var isIgnored = common.isIgnored
+
+function globSync (pattern, options) {
+ if (typeof options === 'function' || arguments.length === 3)
+ throw new TypeError('callback provided to sync glob\n'+
+ 'See: https://github.com/isaacs/node-glob/issues/167')
+
+ return new GlobSync(pattern, options).found
+}
+
+function GlobSync (pattern, options) {
+ if (!pattern)
+ throw new Error('must provide pattern')
+
+ if (typeof options === 'function' || arguments.length === 3)
+ throw new TypeError('callback provided to sync glob\n'+
+ 'See: https://github.com/isaacs/node-glob/issues/167')
+
+ if (!(this instanceof GlobSync))
+ return new GlobSync(pattern, options)
+
+ setopts(this, pattern, options)
+
+ if (this.noprocess)
+ return this
+
+ var n = this.minimatch.set.length
+ this.matches = new Array(n)
+ for (var i = 0; i < n; i ++) {
+ this._process(this.minimatch.set[i], i, false)
+ }
+ this._finish()
+}
+
+GlobSync.prototype._finish = function () {
+ assert(this instanceof GlobSync)
+ if (this.realpath) {
+ var self = this
+ this.matches.forEach(function (matchset, index) {
+ var set = self.matches[index] = Object.create(null)
+ for (var p in matchset) {
+ try {
+ p = self._makeAbs(p)
+ var real = rp.realpathSync(p, self.realpathCache)
+ set[real] = true
+ } catch (er) {
+ if (er.syscall === 'stat')
+ set[self._makeAbs(p)] = true
+ else
+ throw er
+ }
+ }
+ })
+ }
+ common.finish(this)
+}
+
+
+GlobSync.prototype._process = function (pattern, index, inGlobStar) {
+ assert(this instanceof GlobSync)
+
+ // Get the first [n] parts of pattern that are all strings.
+ var n = 0
+ while (typeof pattern[n] === 'string') {
+ n ++
+ }
+ // now n is the index of the first one that is *not* a string.
+
+ // See if there's anything else
+ var prefix
+ switch (n) {
+ // if not, then this is rather simple
+ case pattern.length:
+ this._processSimple(pattern.join('/'), index)
+ return
+
+ case 0:
+ // pattern *starts* with some non-trivial item.
+ // going to readdir(cwd), but not include the prefix in matches.
+ prefix = null
+ break
+
+ default:
+ // pattern has some string bits in the front.
+ // whatever it starts with, whether that's 'absolute' like /foo/bar,
+ // or 'relative' like '../baz'
+ prefix = pattern.slice(0, n).join('/')
+ break
+ }
+
+ var remain = pattern.slice(n)
+
+ // get the list of entries.
+ var read
+ if (prefix === null)
+ read = '.'
+ else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) {
+ if (!prefix || !isAbsolute(prefix))
+ prefix = '/' + prefix
+ read = prefix
+ } else
+ read = prefix
+
+ var abs = this._makeAbs(read)
+
+ //if ignored, skip processing
+ if (childrenIgnored(this, read))
+ return
+
+ var isGlobStar = remain[0] === minimatch.GLOBSTAR
+ if (isGlobStar)
+ this._processGlobStar(prefix, read, abs, remain, index, inGlobStar)
+ else
+ this._processReaddir(prefix, read, abs, remain, index, inGlobStar)
+}
+
+
+GlobSync.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar) {
+ var entries = this._readdir(abs, inGlobStar)
+
+ // if the abs isn't a dir, then nothing can match!
+ if (!entries)
+ return
+
+ // It will only match dot entries if it starts with a dot, or if
+ // dot is set. Stuff like @(.foo|.bar) isn't allowed.
+ var pn = remain[0]
+ var negate = !!this.minimatch.negate
+ var rawGlob = pn._glob
+ var dotOk = this.dot || rawGlob.charAt(0) === '.'
+
+ var matchedEntries = []
+ for (var i = 0; i < entries.length; i++) {
+ var e = entries[i]
+ if (e.charAt(0) !== '.' || dotOk) {
+ var m
+ if (negate && !prefix) {
+ m = !e.match(pn)
+ } else {
+ m = e.match(pn)
+ }
+ if (m)
+ matchedEntries.push(e)
+ }
+ }
+
+ var len = matchedEntries.length
+ // If there are no matched entries, then nothing matches.
+ if (len === 0)
+ return
+
+ // if this is the last remaining pattern bit, then no need for
+ // an additional stat *unless* the user has specified mark or
+ // stat explicitly. We know they exist, since readdir returned
+ // them.
+
+ if (remain.length === 1 && !this.mark && !this.stat) {
+ if (!this.matches[index])
+ this.matches[index] = Object.create(null)
+
+ for (var i = 0; i < len; i ++) {
+ var e = matchedEntries[i]
+ if (prefix) {
+ if (prefix.slice(-1) !== '/')
+ e = prefix + '/' + e
+ else
+ e = prefix + e
+ }
+
+ if (e.charAt(0) === '/' && !this.nomount) {
+ e = path.join(this.root, e)
+ }
+ this._emitMatch(index, e)
+ }
+ // This was the last one, and no stats were needed
+ return
+ }
+
+ // now test all matched entries as stand-ins for that part
+ // of the pattern.
+ remain.shift()
+ for (var i = 0; i < len; i ++) {
+ var e = matchedEntries[i]
+ var newPattern
+ if (prefix)
+ newPattern = [prefix, e]
+ else
+ newPattern = [e]
+ this._process(newPattern.concat(remain), index, inGlobStar)
+ }
+}
+
+
+GlobSync.prototype._emitMatch = function (index, e) {
+ if (isIgnored(this, e))
+ return
+
+ var abs = this._makeAbs(e)
+
+ if (this.mark)
+ e = this._mark(e)
+
+ if (this.absolute) {
+ e = abs
+ }
+
+ if (this.matches[index][e])
+ return
+
+ if (this.nodir) {
+ var c = this.cache[abs]
+ if (c === 'DIR' || Array.isArray(c))
+ return
+ }
+
+ this.matches[index][e] = true
+
+ if (this.stat)
+ this._stat(e)
+}
+
+
+GlobSync.prototype._readdirInGlobStar = function (abs) {
+ // follow all symlinked directories forever
+ // just proceed as if this is a non-globstar situation
+ if (this.follow)
+ return this._readdir(abs, false)
+
+ var entries
+ var lstat
+ var stat
+ try {
+ lstat = this.fs.lstatSync(abs)
+ } catch (er) {
+ if (er.code === 'ENOENT') {
+ // lstat failed, doesn't exist
+ return null
+ }
+ }
+
+ var isSym = lstat && lstat.isSymbolicLink()
+ this.symlinks[abs] = isSym
+
+ // If it's not a symlink or a dir, then it's definitely a regular file.
+ // don't bother doing a readdir in that case.
+ if (!isSym && lstat && !lstat.isDirectory())
+ this.cache[abs] = 'FILE'
+ else
+ entries = this._readdir(abs, false)
+
+ return entries
+}
+
+GlobSync.prototype._readdir = function (abs, inGlobStar) {
+ var entries
+
+ if (inGlobStar && !ownProp(this.symlinks, abs))
+ return this._readdirInGlobStar(abs)
+
+ if (ownProp(this.cache, abs)) {
+ var c = this.cache[abs]
+ if (!c || c === 'FILE')
+ return null
+
+ if (Array.isArray(c))
+ return c
+ }
+
+ try {
+ return this._readdirEntries(abs, this.fs.readdirSync(abs))
+ } catch (er) {
+ this._readdirError(abs, er)
+ return null
+ }
+}
+
+GlobSync.prototype._readdirEntries = function (abs, entries) {
+ // if we haven't asked to stat everything, then just
+ // assume that everything in there exists, so we can avoid
+ // having to stat it a second time.
+ if (!this.mark && !this.stat) {
+ for (var i = 0; i < entries.length; i ++) {
+ var e = entries[i]
+ if (abs === '/')
+ e = abs + e
+ else
+ e = abs + '/' + e
+ this.cache[e] = true
+ }
+ }
+
+ this.cache[abs] = entries
+
+ // mark and cache dir-ness
+ return entries
+}
+
+GlobSync.prototype._readdirError = function (f, er) {
+ // handle errors, and cache the information
+ switch (er.code) {
+ case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
+ case 'ENOTDIR': // totally normal. means it *does* exist.
+ var abs = this._makeAbs(f)
+ this.cache[abs] = 'FILE'
+ if (abs === this.cwdAbs) {
+ var error = new Error(er.code + ' invalid cwd ' + this.cwd)
+ error.path = this.cwd
+ error.code = er.code
+ throw error
+ }
+ break
+
+ case 'ENOENT': // not terribly unusual
+ case 'ELOOP':
+ case 'ENAMETOOLONG':
+ case 'UNKNOWN':
+ this.cache[this._makeAbs(f)] = false
+ break
+
+ default: // some unusual error. Treat as failure.
+ this.cache[this._makeAbs(f)] = false
+ if (this.strict)
+ throw er
+ if (!this.silent)
+ console.error('glob error', er)
+ break
+ }
+}
+
+GlobSync.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar) {
+
+ var entries = this._readdir(abs, inGlobStar)
+
+ // no entries means not a dir, so it can never have matches
+ // foo.txt/** doesn't match foo.txt
+ if (!entries)
+ return
+
+ // test without the globstar, and with every child both below
+ // and replacing the globstar.
+ var remainWithoutGlobStar = remain.slice(1)
+ var gspref = prefix ? [ prefix ] : []
+ var noGlobStar = gspref.concat(remainWithoutGlobStar)
+
+ // the noGlobStar pattern exits the inGlobStar state
+ this._process(noGlobStar, index, false)
+
+ var len = entries.length
+ var isSym = this.symlinks[abs]
+
+ // If it's a symlink, and we're in a globstar, then stop
+ if (isSym && inGlobStar)
+ return
+
+ for (var i = 0; i < len; i++) {
+ var e = entries[i]
+ if (e.charAt(0) === '.' && !this.dot)
+ continue
+
+ // these two cases enter the inGlobStar state
+ var instead = gspref.concat(entries[i], remainWithoutGlobStar)
+ this._process(instead, index, true)
+
+ var below = gspref.concat(entries[i], remain)
+ this._process(below, index, true)
+ }
+}
+
+GlobSync.prototype._processSimple = function (prefix, index) {
+ // XXX review this. Shouldn't it be doing the mounting etc
+ // before doing stat? kinda weird?
+ var exists = this._stat(prefix)
+
+ if (!this.matches[index])
+ this.matches[index] = Object.create(null)
+
+ // If it doesn't exist, then just mark the lack of results
+ if (!exists)
+ return
+
+ if (prefix && isAbsolute(prefix) && !this.nomount) {
+ var trail = /[\/\\]$/.test(prefix)
+ if (prefix.charAt(0) === '/') {
+ prefix = path.join(this.root, prefix)
+ } else {
+ prefix = path.resolve(this.root, prefix)
+ if (trail)
+ prefix += '/'
+ }
+ }
+
+ if (process.platform === 'win32')
+ prefix = prefix.replace(/\\/g, '/')
+
+ // Mark this as a match
+ this._emitMatch(index, prefix)
+}
+
+// Returns either 'DIR', 'FILE', or false
+GlobSync.prototype._stat = function (f) {
+ var abs = this._makeAbs(f)
+ var needDir = f.slice(-1) === '/'
+
+ if (f.length > this.maxLength)
+ return false
+
+ if (!this.stat && ownProp(this.cache, abs)) {
+ var c = this.cache[abs]
+
+ if (Array.isArray(c))
+ c = 'DIR'
+
+ // It exists, but maybe not how we need it
+ if (!needDir || c === 'DIR')
+ return c
+
+ if (needDir && c === 'FILE')
+ return false
+
+ // otherwise we have to stat, because maybe c=true
+ // if we know it exists, but not what it is.
+ }
+
+ var exists
+ var stat = this.statCache[abs]
+ if (!stat) {
+ var lstat
+ try {
+ lstat = this.fs.lstatSync(abs)
+ } catch (er) {
+ if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
+ this.statCache[abs] = false
+ return false
+ }
+ }
+
+ if (lstat && lstat.isSymbolicLink()) {
+ try {
+ stat = this.fs.statSync(abs)
+ } catch (er) {
+ stat = lstat
+ }
+ } else {
+ stat = lstat
+ }
+ }
+
+ this.statCache[abs] = stat
+
+ var c = true
+ if (stat)
+ c = stat.isDirectory() ? 'DIR' : 'FILE'
+
+ this.cache[abs] = this.cache[abs] || c
+
+ if (needDir && c === 'FILE')
+ return false
+
+ return c
+}
+
+GlobSync.prototype._mark = function (p) {
+ return common.mark(this, p)
+}
+
+GlobSync.prototype._makeAbs = function (f) {
+ return common.makeAbs(this, f)
+}
diff --git a/backend/node_modules/has-unicode/LICENSE b/backend/node_modules/has-unicode/LICENSE
new file mode 100644
index 0000000..d42e25e
--- /dev/null
+++ b/backend/node_modules/has-unicode/LICENSE
@@ -0,0 +1,14 @@
+Copyright (c) 2014, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/backend/node_modules/has-unicode/README.md b/backend/node_modules/has-unicode/README.md
new file mode 100644
index 0000000..5a03e59
--- /dev/null
+++ b/backend/node_modules/has-unicode/README.md
@@ -0,0 +1,43 @@
+has-unicode
+===========
+
+Try to guess if your terminal supports unicode
+
+```javascript
+var hasUnicode = require("has-unicode")
+
+if (hasUnicode()) {
+ // the terminal probably has unicode support
+}
+```
+```javascript
+var hasUnicode = require("has-unicode").tryHarder
+hasUnicode(function(unicodeSupported) {
+ if (unicodeSupported) {
+ // the terminal probably has unicode support
+ }
+})
+```
+
+## Detecting Unicode
+
+What we actually detect is UTF-8 support, as that's what Node itself supports.
+If you have a UTF-16 locale then you won't be detected as unicode capable.
+
+### Windows
+
+Since at least Windows 7, `cmd` and `powershell` have been unicode capable,
+but unfortunately even then it's not guaranteed. In many localizations it
+still uses legacy code pages and there's no facility short of running
+programs or linking C++ that will let us detect this. As such, we
+report any Windows installation as NOT unicode capable, and recommend
+that you encourage your users to override this via config.
+
+### Unix Like Operating Systems
+
+We look at the environment variables `LC_ALL`, `LC_CTYPE`, and `LANG` in
+that order. For `LC_ALL` and `LANG`, it looks for `.UTF-8` in the value.
+For `LC_CTYPE` it looks to see if the value is `UTF-8`. This is sufficient
+for most POSIX systems. While locale data can be put in `/etc/locale.conf`
+as well, AFAIK it's always copied into the environment.
+
diff --git a/backend/node_modules/has-unicode/index.js b/backend/node_modules/has-unicode/index.js
new file mode 100644
index 0000000..9b0fe44
--- /dev/null
+++ b/backend/node_modules/has-unicode/index.js
@@ -0,0 +1,16 @@
+"use strict"
+var os = require("os")
+
+var hasUnicode = module.exports = function () {
+ // Recent Win32 platforms (>XP) CAN support unicode in the console but
+ // don't have to, and in non-english locales often use traditional local
+ // code pages. There's no way, short of windows system calls or execing
+ // the chcp command line program to figure this out. As such, we default
+ // this to false and encourage your users to override it via config if
+ // appropriate.
+ if (os.type() == "Windows_NT") { return false }
+
+ var isUTF8 = /UTF-?8$/i
+ var ctype = process.env.LC_ALL || process.env.LC_CTYPE || process.env.LANG
+ return isUTF8.test(ctype)
+}
diff --git a/backend/node_modules/has-unicode/package.json b/backend/node_modules/has-unicode/package.json
new file mode 100644
index 0000000..14c5f75
--- /dev/null
+++ b/backend/node_modules/has-unicode/package.json
@@ -0,0 +1,58 @@
+{
+ "_from": "has-unicode@^2.0.1",
+ "_id": "has-unicode@2.0.1",
+ "_inBundle": false,
+ "_integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
+ "_location": "/has-unicode",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "has-unicode@^2.0.1",
+ "name": "has-unicode",
+ "escapedName": "has-unicode",
+ "rawSpec": "^2.0.1",
+ "saveSpec": null,
+ "fetchSpec": "^2.0.1"
+ },
+ "_requiredBy": [
+ "/gauge"
+ ],
+ "_resolved": "https://registry.npmjs.org/has-unicode/-/has-unicode-2.0.1.tgz",
+ "_shasum": "e0e6fe6a28cf51138855e086d1691e771de2a8b9",
+ "_spec": "has-unicode@^2.0.1",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/gauge",
+ "author": {
+ "name": "Rebecca Turner",
+ "email": "me@re-becca.org"
+ },
+ "bugs": {
+ "url": "https://github.com/iarna/has-unicode/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Try to guess if your terminal supports unicode",
+ "devDependencies": {
+ "require-inject": "^1.3.0",
+ "tap": "^2.3.1"
+ },
+ "files": [
+ "index.js"
+ ],
+ "homepage": "https://github.com/iarna/has-unicode",
+ "keywords": [
+ "unicode",
+ "terminal"
+ ],
+ "license": "ISC",
+ "main": "index.js",
+ "name": "has-unicode",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/iarna/has-unicode.git"
+ },
+ "scripts": {
+ "test": "tap test/*.js"
+ },
+ "version": "2.0.1"
+}
diff --git a/backend/node_modules/https-proxy-agent/README.md b/backend/node_modules/https-proxy-agent/README.md
new file mode 100644
index 0000000..328656a
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/README.md
@@ -0,0 +1,137 @@
+https-proxy-agent
+================
+### An HTTP(s) proxy `http.Agent` implementation for HTTPS
+[](https://github.com/TooTallNate/node-https-proxy-agent/actions?workflow=Node+CI)
+
+This module provides an `http.Agent` implementation that connects to a specified
+HTTP or HTTPS proxy server, and can be used with the built-in `https` module.
+
+Specifically, this `Agent` implementation connects to an intermediary "proxy"
+server and issues the [CONNECT HTTP method][CONNECT], which tells the proxy to
+open a direct TCP connection to the destination server.
+
+Since this agent implements the CONNECT HTTP method, it also works with other
+protocols that use this method when connecting over proxies (i.e. WebSockets).
+See the "Examples" section below for more.
+
+
+Installation
+------------
+
+Install with `npm`:
+
+``` bash
+$ npm install https-proxy-agent
+```
+
+
+Examples
+--------
+
+#### `https` module example
+
+``` js
+var url = require('url');
+var https = require('https');
+var HttpsProxyAgent = require('https-proxy-agent');
+
+// HTTP/HTTPS proxy to connect to
+var proxy = process.env.http_proxy || 'http://168.63.76.32:3128';
+console.log('using proxy server %j', proxy);
+
+// HTTPS endpoint for the proxy to connect to
+var endpoint = process.argv[2] || 'https://graph.facebook.com/tootallnate';
+console.log('attempting to GET %j', endpoint);
+var options = url.parse(endpoint);
+
+// create an instance of the `HttpsProxyAgent` class with the proxy server information
+var agent = new HttpsProxyAgent(proxy);
+options.agent = agent;
+
+https.get(options, function (res) {
+ console.log('"response" event!', res.headers);
+ res.pipe(process.stdout);
+});
+```
+
+#### `ws` WebSocket connection example
+
+``` js
+var url = require('url');
+var WebSocket = require('ws');
+var HttpsProxyAgent = require('https-proxy-agent');
+
+// HTTP/HTTPS proxy to connect to
+var proxy = process.env.http_proxy || 'http://168.63.76.32:3128';
+console.log('using proxy server %j', proxy);
+
+// WebSocket endpoint for the proxy to connect to
+var endpoint = process.argv[2] || 'ws://echo.websocket.org';
+var parsed = url.parse(endpoint);
+console.log('attempting to connect to WebSocket %j', endpoint);
+
+// create an instance of the `HttpsProxyAgent` class with the proxy server information
+var options = url.parse(proxy);
+
+var agent = new HttpsProxyAgent(options);
+
+// finally, initiate the WebSocket connection
+var socket = new WebSocket(endpoint, { agent: agent });
+
+socket.on('open', function () {
+ console.log('"open" event!');
+ socket.send('hello world');
+});
+
+socket.on('message', function (data, flags) {
+ console.log('"message" event! %j %j', data, flags);
+ socket.close();
+});
+```
+
+API
+---
+
+### new HttpsProxyAgent(Object options)
+
+The `HttpsProxyAgent` class implements an `http.Agent` subclass that connects
+to the specified "HTTP(s) proxy server" in order to proxy HTTPS and/or WebSocket
+requests. This is achieved by using the [HTTP `CONNECT` method][CONNECT].
+
+The `options` argument may either be a string URI of the proxy server to use, or an
+"options" object with more specific properties:
+
+ * `host` - String - Proxy host to connect to (may use `hostname` as well). Required.
+ * `port` - Number - Proxy port to connect to. Required.
+ * `protocol` - String - If `https:`, then use TLS to connect to the proxy.
+ * `headers` - Object - Additional HTTP headers to be sent on the HTTP CONNECT method.
+ * Any other options given are passed to the `net.connect()`/`tls.connect()` functions.
+
+
+License
+-------
+
+(The MIT License)
+
+Copyright (c) 2013 Nathan Rajlich <nathan@tootallnate.net>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+[CONNECT]: http://en.wikipedia.org/wiki/HTTP_tunnel#HTTP_CONNECT_Tunneling
diff --git a/backend/node_modules/https-proxy-agent/dist/agent.d.ts b/backend/node_modules/https-proxy-agent/dist/agent.d.ts
new file mode 100644
index 0000000..4f1c636
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/dist/agent.d.ts
@@ -0,0 +1,30 @@
+/// <reference types="node" />
+import net from 'net';
+import { Agent, ClientRequest, RequestOptions } from 'agent-base';
+import { HttpsProxyAgentOptions } from '.';
+/**
+ * The `HttpsProxyAgent` implements an HTTP Agent subclass that connects to
+ * the specified "HTTP(s) proxy server" in order to proxy HTTPS requests.
+ *
+ * Outgoing HTTP requests are first tunneled through the proxy server using the
+ * `CONNECT` HTTP request method to establish a connection to the proxy server,
+ * and then the proxy server connects to the destination target and issues the
+ * HTTP request from the proxy server.
+ *
+ * `https:` requests have their socket connection upgraded to TLS once
+ * the connection to the proxy server has been established.
+ *
+ * @api public
+ */
+export default class HttpsProxyAgent extends Agent {
+ private secureProxy;
+ private proxy;
+ constructor(_opts: string | HttpsProxyAgentOptions);
+ /**
+ * Called when the node-core HTTP client library is creating a
+ * new HTTP request.
+ *
+ * @api protected
+ */
+ callback(req: ClientRequest, opts: RequestOptions): Promise<net.Socket>;
+}
diff --git a/backend/node_modules/https-proxy-agent/dist/agent.js b/backend/node_modules/https-proxy-agent/dist/agent.js
new file mode 100644
index 0000000..d666525
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/dist/agent.js
@@ -0,0 +1,180 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+ function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+ return new (P || (P = Promise))(function (resolve, reject) {
+ function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+ function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+ function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+ step((generator = generator.apply(thisArg, _arguments || [])).next());
+ });
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+ return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const net_1 = __importDefault(require("net"));
+const tls_1 = __importDefault(require("tls"));
+const url_1 = __importDefault(require("url"));
+const assert_1 = __importDefault(require("assert"));
+const debug_1 = __importDefault(require("debug"));
+const agent_base_1 = require("agent-base");
+const parse_proxy_response_1 = __importDefault(require("./parse-proxy-response"));
+const debug = debug_1.default('https-proxy-agent:agent');
+/**
+ * The `HttpsProxyAgent` implements an HTTP Agent subclass that connects to
+ * the specified "HTTP(s) proxy server" in order to proxy HTTPS requests.
+ *
+ * Outgoing HTTP requests are first tunneled through the proxy server using the
+ * `CONNECT` HTTP request method to establish a connection to the proxy server,
+ * and then the proxy server connects to the destination target and issues the
+ * HTTP request from the proxy server.
+ *
+ * `https:` requests have their socket connection upgraded to TLS once
+ * the connection to the proxy server has been established.
+ *
+ * @api public
+ */
+class HttpsProxyAgent extends agent_base_1.Agent {
+ constructor(_opts) {
+ let opts;
+ if (typeof _opts === 'string') {
+ opts = url_1.default.parse(_opts);
+ }
+ else {
+ opts = _opts;
+ }
+ if (!opts) {
+ throw new Error('an HTTP(S) proxy server `host` and `port` must be specified!');
+ }
+ debug('creating new HttpsProxyAgent instance: %o', opts);
+ super(opts);
+ const proxy = Object.assign({}, opts);
+ // If `true`, then connect to the proxy server over TLS.
+ // Defaults to `false`.
+ this.secureProxy = opts.secureProxy || isHTTPS(proxy.protocol);
+ // Prefer `hostname` over `host`, and set the `port` if needed.
+ proxy.host = proxy.hostname || proxy.host;
+ if (typeof proxy.port === 'string') {
+ proxy.port = parseInt(proxy.port, 10);
+ }
+ if (!proxy.port && proxy.host) {
+ proxy.port = this.secureProxy ? 443 : 80;
+ }
+ // ALPN is supported by Node.js >= v5.
+ // attempt to negotiate http/1.1 for proxy servers that support http/2
+ if (this.secureProxy && !('ALPNProtocols' in proxy)) {
+ proxy.ALPNProtocols = ['http 1.1'];
+ }
+ if (proxy.host && proxy.path) {
+ // If both a `host` and `path` are specified then it's most likely
+ // the result of a `url.parse()` call... we need to remove the
+ // `path` portion so that `net.connect()` doesn't attempt to open
+ // that as a Unix socket file.
+ delete proxy.path;
+ delete proxy.pathname;
+ }
+ this.proxy = proxy;
+ }
+ /**
+ * Called when the node-core HTTP client library is creating a
+ * new HTTP request.
+ *
+ * @api protected
+ */
+ callback(req, opts) {
+ return __awaiter(this, void 0, void 0, function* () {
+ const { proxy, secureProxy } = this;
+ // Create a socket connection to the proxy server.
+ let socket;
+ if (secureProxy) {
+ debug('Creating `tls.Socket`: %o', proxy);
+ socket = tls_1.default.connect(proxy);
+ }
+ else {
+ debug('Creating `net.Socket`: %o', proxy);
+ socket = net_1.default.connect(proxy);
+ }
+ const headers = Object.assign({}, proxy.headers);
+ const hostname = `${opts.host}:${opts.port}`;
+ let payload = `CONNECT ${hostname} HTTP/1.1\r\n`;
+ // Inject the `Proxy-Authorization` header if necessary.
+ if (proxy.auth) {
+ headers['Proxy-Authorization'] = `Basic ${Buffer.from(proxy.auth).toString('base64')}`;
+ }
+ // The `Host` header should only include the port
+ // number when it is not the default port.
+ let { host, port, secureEndpoint } = opts;
+ if (!isDefaultPort(port, secureEndpoint)) {
+ host += `:${port}`;
+ }
+ headers.Host = host;
+ headers.Connection = 'close';
+ for (const name of Object.keys(headers)) {
+ payload += `${name}: ${headers[name]}\r\n`;
+ }
+ const proxyResponsePromise = parse_proxy_response_1.default(socket);
+ socket.write(`${payload}\r\n`);
+ const { statusCode, buffered } = yield proxyResponsePromise;
+ if (statusCode === 200) {
+ req.once('socket', resume);
+ if (opts.secureEndpoint) {
+ const servername = opts.servername || opts.host;
+ if (!servername) {
+ throw new Error('Could not determine "servername"');
+ }
+ // The proxy is connecting to a TLS server, so upgrade
+ // this socket connection to a TLS connection.
+ debug('Upgrading socket connection to TLS');
+ return tls_1.default.connect(Object.assign(Object.assign({}, omit(opts, 'host', 'hostname', 'path', 'port')), { socket,
+ servername }));
+ }
+ return socket;
+ }
+ // Some other status code that's not 200... need to re-play the HTTP
+ // header "data" events onto the socket once the HTTP machinery is
+ // attached so that the node core `http` can parse and handle the
+ // error status code.
+ // Close the original socket, and a new "fake" socket is returned
+ // instead, so that the proxy doesn't get the HTTP request
+ // written to it (which may contain `Authorization` headers or other
+ // sensitive data).
+ //
+ // See: https://hackerone.com/reports/541502
+ socket.destroy();
+ const fakeSocket = new net_1.default.Socket();
+ fakeSocket.readable = true;
+ // Need to wait for the "socket" event to re-play the "data" events.
+ req.once('socket', (s) => {
+ debug('replaying proxy buffer for failed request');
+ assert_1.default(s.listenerCount('data') > 0);
+ // Replay the "buffered" Buffer onto the fake `socket`, since at
+ // this point the HTTP module machinery has been hooked up for
+ // the user.
+ s.push(buffered);
+ s.push(null);
+ });
+ return fakeSocket;
+ });
+ }
+}
+exports.default = HttpsProxyAgent;
+function resume(socket) {
+ socket.resume();
+}
+function isDefaultPort(port, secure) {
+ return Boolean((!secure && port === 80) || (secure && port === 443));
+}
+function isHTTPS(protocol) {
+ return typeof protocol === 'string' ? /^https:?$/i.test(protocol) : false;
+}
+function omit(obj, ...keys) {
+ const ret = {};
+ let key;
+ for (key in obj) {
+ if (!keys.includes(key)) {
+ ret[key] = obj[key];
+ }
+ }
+ return ret;
+}
+//# sourceMappingURL=agent.js.map
\ No newline at end of file
diff --git a/backend/node_modules/https-proxy-agent/dist/agent.js.map b/backend/node_modules/https-proxy-agent/dist/agent.js.map
new file mode 100644
index 0000000..d1307cd
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/dist/agent.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/https-proxy-agent/dist/index.d.ts b/backend/node_modules/https-proxy-agent/dist/index.d.ts
new file mode 100644
index 0000000..0d60062
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/dist/index.d.ts
@@ -0,0 +1,23 @@
+/// <reference types="node" />
+import net from 'net';
+import tls from 'tls';
+import { Url } from 'url';
+import { AgentOptions } from 'agent-base';
+import { OutgoingHttpHeaders } from 'http';
+import _HttpsProxyAgent from './agent';
+declare function createHttpsProxyAgent(opts: string | createHttpsProxyAgent.HttpsProxyAgentOptions): _HttpsProxyAgent;
+declare namespace createHttpsProxyAgent {
+ interface BaseHttpsProxyAgentOptions {
+ headers?: OutgoingHttpHeaders;
+ secureProxy?: boolean;
+ host?: string | null;
+ path?: string | null;
+ port?: string | number | null;
+ }
+ export interface HttpsProxyAgentOptions extends AgentOptions, BaseHttpsProxyAgentOptions, Partial<Omit<Url & net.NetConnectOpts & tls.ConnectionOptions, keyof BaseHttpsProxyAgentOptions>> {
+ }
+ export type HttpsProxyAgent = _HttpsProxyAgent;
+ export const HttpsProxyAgent: typeof _HttpsProxyAgent;
+ export {};
+}
+export = createHttpsProxyAgent;
diff --git a/backend/node_modules/https-proxy-agent/dist/index.js b/backend/node_modules/https-proxy-agent/dist/index.js
new file mode 100644
index 0000000..b03e763
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/dist/index.js
@@ -0,0 +1,14 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+ return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+const agent_1 = __importDefault(require("./agent"));
+function createHttpsProxyAgent(opts) {
+ return new agent_1.default(opts);
+}
+(function (createHttpsProxyAgent) {
+ createHttpsProxyAgent.HttpsProxyAgent = agent_1.default;
+ createHttpsProxyAgent.prototype = agent_1.default.prototype;
+})(createHttpsProxyAgent || (createHttpsProxyAgent = {}));
+module.exports = createHttpsProxyAgent;
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/backend/node_modules/https-proxy-agent/dist/index.js.map b/backend/node_modules/https-proxy-agent/dist/index.js.map
new file mode 100644
index 0000000..f3ce559
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/dist/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";;;;AAKA,oDAAuC;AAEvC,SAAS,qBAAqB,CAC7B,IAA2D;IAE3D,OAAO,IAAI,eAAgB,CAAC,IAAI,CAAC,CAAC;AACnC,CAAC;AAED,WAAU,qBAAqB;IAoBjB,qCAAe,GAAG,eAAgB,CAAC;IAEhD,qBAAqB,CAAC,SAAS,GAAG,eAAgB,CAAC,SAAS,CAAC;AAC9D,CAAC,EAvBS,qBAAqB,KAArB,qBAAqB,QAuB9B;AAED,iBAAS,qBAAqB,CAAC"}
\ No newline at end of file
diff --git a/backend/node_modules/https-proxy-agent/dist/parse-proxy-response.d.ts b/backend/node_modules/https-proxy-agent/dist/parse-proxy-response.d.ts
new file mode 100644
index 0000000..7565674
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/dist/parse-proxy-response.d.ts
@@ -0,0 +1,7 @@
+/// <reference types="node" />
+import { Readable } from 'stream';
+export interface ProxyResponse {
+ statusCode: number;
+ buffered: Buffer;
+}
+export default function parseProxyResponse(socket: Readable): Promise<ProxyResponse>;
diff --git a/backend/node_modules/https-proxy-agent/dist/parse-proxy-response.js b/backend/node_modules/https-proxy-agent/dist/parse-proxy-response.js
new file mode 100644
index 0000000..aa5ce3c
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/dist/parse-proxy-response.js
@@ -0,0 +1,66 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+ return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const debug_1 = __importDefault(require("debug"));
+const debug = debug_1.default('https-proxy-agent:parse-proxy-response');
+function parseProxyResponse(socket) {
+ return new Promise((resolve, reject) => {
+ // we need to buffer any HTTP traffic that happens with the proxy before we get
+ // the CONNECT response, so that if the response is anything other than an "200"
+ // response code, then we can re-play the "data" events on the socket once the
+ // HTTP parser is hooked up...
+ let buffersLength = 0;
+ const buffers = [];
+ function read() {
+ const b = socket.read();
+ if (b)
+ ondata(b);
+ else
+ socket.once('readable', read);
+ }
+ function cleanup() {
+ socket.removeListener('end', onend);
+ socket.removeListener('error', onerror);
+ socket.removeListener('close', onclose);
+ socket.removeListener('readable', read);
+ }
+ function onclose(err) {
+ debug('onclose had error %o', err);
+ }
+ function onend() {
+ debug('onend');
+ }
+ function onerror(err) {
+ cleanup();
+ debug('onerror %o', err);
+ reject(err);
+ }
+ function ondata(b) {
+ buffers.push(b);
+ buffersLength += b.length;
+ const buffered = Buffer.concat(buffers, buffersLength);
+ const endOfHeaders = buffered.indexOf('\r\n\r\n');
+ if (endOfHeaders === -1) {
+ // keep buffering
+ debug('have not received end of HTTP headers yet...');
+ read();
+ return;
+ }
+ const firstLine = buffered.toString('ascii', 0, buffered.indexOf('\r\n'));
+ const statusCode = +firstLine.split(' ')[1];
+ debug('got proxy server response: %o', firstLine);
+ resolve({
+ statusCode,
+ buffered
+ });
+ }
+ socket.on('error', onerror);
+ socket.on('close', onclose);
+ socket.on('end', onend);
+ read();
+ });
+}
+exports.default = parseProxyResponse;
+//# sourceMappingURL=parse-proxy-response.js.map
\ No newline at end of file
diff --git a/backend/node_modules/https-proxy-agent/dist/parse-proxy-response.js.map b/backend/node_modules/https-proxy-agent/dist/parse-proxy-response.js.map
new file mode 100644
index 0000000..bacdb84
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/dist/parse-proxy-response.js.map
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/https-proxy-agent/node_modules/debug/LICENSE b/backend/node_modules/https-proxy-agent/node_modules/debug/LICENSE
new file mode 100644
index 0000000..1a9820e
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/debug/LICENSE
@@ -0,0 +1,20 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+and associated documentation files (the 'Software'), to deal in the Software without restriction,
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
diff --git a/backend/node_modules/https-proxy-agent/node_modules/debug/README.md b/backend/node_modules/https-proxy-agent/node_modules/debug/README.md
new file mode 100644
index 0000000..5ea4cd2
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/debug/README.md
@@ -0,0 +1,478 @@
+# debug
+[](https://travis-ci.org/debug-js/debug) [](https://coveralls.io/github/debug-js/debug?branch=master) [](https://visionmedia-community-slackin.now.sh/) [](#backers)
+[](#sponsors)
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+A tiny JavaScript debugging utility modelled after Node.js core's debugging
+technique. Works in Node.js and web browsers.
+
+## Installation
+
+```bash
+$ npm install debug
+```
+
+## Usage
+
+`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
+
+Example [_app.js_](./examples/node/app.js):
+
+```js
+var debug = require('debug')('http')
+ , http = require('http')
+ , name = 'My App';
+
+// fake app
+
+debug('booting %o', name);
+
+http.createServer(function(req, res){
+ debug(req.method + ' ' + req.url);
+ res.end('hello\n');
+}).listen(3000, function(){
+ debug('listening');
+});
+
+// fake worker of some kind
+
+require('./worker');
+```
+
+Example [_worker.js_](./examples/node/worker.js):
+
+```js
+var a = require('debug')('worker:a')
+ , b = require('debug')('worker:b');
+
+function work() {
+ a('doing lots of uninteresting work');
+ setTimeout(work, Math.random() * 1000);
+}
+
+work();
+
+function workb() {
+ b('doing some work');
+ setTimeout(workb, Math.random() * 2000);
+}
+
+workb();
+```
+
+The `DEBUG` environment variable is then used to enable these based on space or
+comma-delimited names.
+
+Here are some examples:
+
+<img width="647" alt="screen shot 2017-08-08 at 12 53 04 pm" src="https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 38 pm" src="https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 25 pm" src="https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png">
+
+#### Windows command prompt notes
+
+##### CMD
+
+On Windows the environment variable is set using the `set` command.
+
+```cmd
+set DEBUG=*,-not_this
+```
+
+Example:
+
+```cmd
+set DEBUG=* & node app.js
+```
+
+##### PowerShell (VS Code default)
+
+PowerShell uses different syntax to set environment variables.
+
+```cmd
+$env:DEBUG = "*,-not_this"
+```
+
+Example:
+
+```cmd
+$env:DEBUG='app';node app.js
+```
+
+Then, run the program to be debugged as usual.
+
+npm script example:
+```js
+ "windowsDebug": "@powershell -Command $env:DEBUG='*';node app.js",
+```
+
+## Namespace Colors
+
+Every debug instance has a color generated for it based on its namespace name.
+This helps when visually parsing the debug output to identify which debug instance
+a debug line belongs to.
+
+#### Node.js
+
+In Node.js, colors are enabled when stderr is a TTY. You also _should_ install
+the [`supports-color`](https://npmjs.org/supports-color) module alongside debug,
+otherwise debug will only use a small handful of basic colors.
+
+<img width="521" src="https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png">
+
+#### Web Browser
+
+Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
+option. These are WebKit web inspectors, Firefox ([since version
+31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
+and the Firebug plugin for Firefox (any version).
+
+<img width="524" src="https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png">
+
+
+## Millisecond diff
+
+When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+When stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png">
+
+
+## Conventions
+
+If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser". If you append a "*" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable. You can then use it for normal output as well as debug output.
+
+## Wildcards
+
+The `*` character may be used as a wildcard. Suppose for example your library has
+debuggers named "connect:bodyParser", "connect:compress", "connect:session",
+instead of listing all three with
+`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do
+`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
+
+You can also exclude specific debuggers by prefixing them with a "-" character.
+For example, `DEBUG=*,-connect:*` would include all debuggers except those
+starting with "connect:".
+
+## Environment Variables
+
+When running through Node.js, you can set a few environment variables that will
+change the behavior of the debug logging:
+
+| Name | Purpose |
+|-----------|-------------------------------------------------|
+| `DEBUG` | Enables/disables specific debugging namespaces. |
+| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY). |
+| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
+| `DEBUG_DEPTH` | Object inspection depth. |
+| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
+
+
+__Note:__ The environment variables beginning with `DEBUG_` end up being
+converted into an Options object that gets used with `%o`/`%O` formatters.
+See the Node.js documentation for
+[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
+for the complete list.
+
+## Formatters
+
+Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.
+Below are the officially supported formatters:
+
+| Formatter | Representation |
+|-----------|----------------|
+| `%O` | Pretty-print an Object on multiple lines. |
+| `%o` | Pretty-print an Object all on a single line. |
+| `%s` | String. |
+| `%d` | Number (both integer and float). |
+| `%j` | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
+| `%%` | Single percent sign ('%'). This does not consume an argument. |
+
+
+### Custom formatters
+
+You can add custom formatters by extending the `debug.formatters` object.
+For example, if you wanted to add support for rendering a Buffer as hex with
+`%h`, you could do something like:
+
+```js
+const createDebug = require('debug')
+createDebug.formatters.h = (v) => {
+ return v.toString('hex')
+}
+
+// …elsewhere
+const debug = createDebug('foo')
+debug('this is hex: %h', new Buffer('hello world'))
+// foo this is hex: 68656c6c6f20776f726c6421 +0ms
+```
+
+
+## Browser Support
+
+You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
+or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
+if you don't want to build it yourself.
+
+Debug's enable state is currently persisted by `localStorage`.
+Consider the situation shown below where you have `worker:a` and `worker:b`,
+and wish to debug both. You can enable this using `localStorage.debug`:
+
+```js
+localStorage.debug = 'worker:*'
+```
+
+And then refresh the page.
+
+```js
+a = debug('worker:a');
+b = debug('worker:b');
+
+setInterval(function(){
+ a('doing some work');
+}, 1000);
+
+setInterval(function(){
+ b('doing some work');
+}, 1200);
+```
+
+
+## Output streams
+
+ By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
+
+Example [_stdout.js_](./examples/node/stdout.js):
+
+```js
+var debug = require('debug');
+var error = debug('app:error');
+
+// by default stderr is used
+error('goes to stderr!');
+
+var log = debug('app:log');
+// set this namespace to log via console.log
+log.log = console.log.bind(console); // don't forget to bind to console!
+log('goes to stdout');
+error('still goes to stderr!');
+
+// set all output to go via console.info
+// overrides all per-namespace log settings
+debug.log = console.info.bind(console);
+error('now goes to stdout via console.info');
+log('still goes to stdout, but via console.info now');
+```
+
+## Extend
+You can simply extend debugger
+```js
+const log = require('debug')('auth');
+
+//creates new debug instance with extended namespace
+const logSign = log.extend('sign');
+const logLogin = log.extend('login');
+
+log('hello'); // auth hello
+logSign('hello'); //auth:sign hello
+logLogin('hello'); //auth:login hello
+```
+
+## Set dynamically
+
+You can also enable debug dynamically by calling the `enable()` method :
+
+```js
+let debug = require('debug');
+
+console.log(1, debug.enabled('test'));
+
+debug.enable('test');
+console.log(2, debug.enabled('test'));
+
+debug.disable();
+console.log(3, debug.enabled('test'));
+
+```
+
+print :
+```
+1 false
+2 true
+3 false
+```
+
+Usage :
+`enable(namespaces)`
+`namespaces` can include modes separated by a colon and wildcards.
+
+Note that calling `enable()` completely overrides previously set DEBUG variable :
+
+```
+$ DEBUG=foo node -e 'var dbg = require("debug"); dbg.enable("bar"); console.log(dbg.enabled("foo"))'
+=> false
+```
+
+`disable()`
+
+Will disable all namespaces. The functions returns the namespaces currently
+enabled (and skipped). This can be useful if you want to disable debugging
+temporarily without knowing what was enabled to begin with.
+
+For example:
+
+```js
+let debug = require('debug');
+debug.enable('foo:*,-foo:bar');
+let namespaces = debug.disable();
+debug.enable(namespaces);
+```
+
+Note: There is no guarantee that the string will be identical to the initial
+enable string, but semantically they will be identical.
+
+## Checking whether a debug target is enabled
+
+After you've created a debug instance, you can determine whether or not it is
+enabled by checking the `enabled` property:
+
+```javascript
+const debug = require('debug')('http');
+
+if (debug.enabled) {
+ // do stuff...
+}
+```
+
+You can also manually toggle this property to force the debug instance to be
+enabled or disabled.
+
+## Usage in child processes
+
+Due to the way `debug` detects if the output is a TTY or not, colors are not shown in child processes when `stderr` is piped. A solution is to pass the `DEBUG_COLORS=1` environment variable to the child process.
+For example:
+
+```javascript
+worker = fork(WORKER_WRAP_PATH, [workerPath], {
+ stdio: [
+ /* stdin: */ 0,
+ /* stdout: */ 'pipe',
+ /* stderr: */ 'pipe',
+ 'ipc',
+ ],
+ env: Object.assign({}, process.env, {
+ DEBUG_COLORS: 1 // without this settings, colors won't be shown
+ }),
+});
+
+worker.stderr.pipe(process.stderr, { end: false });
+```
+
+
+## Authors
+
+ - TJ Holowaychuk
+ - Nathan Rajlich
+ - Andrew Rhyne
+ - Josh Junon
+
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
+
+<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/1/website" target="_blank"><img src="https://opencollective.com/debug/backer/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/2/website" target="_blank"><img src="https://opencollective.com/debug/backer/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/3/website" target="_blank"><img src="https://opencollective.com/debug/backer/3/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/4/website" target="_blank"><img src="https://opencollective.com/debug/backer/4/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/5/website" target="_blank"><img src="https://opencollective.com/debug/backer/5/avatar.svg"></a>
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+<a href="https://opencollective.com/debug/backer/29/website" target="_blank"><img src="https://opencollective.com/debug/backer/29/avatar.svg"></a>
+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
+
+<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
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+<a href="https://opencollective.com/debug/sponsor/6/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/7/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/8/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/9/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/10/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/11/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/12/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/13/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/14/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/15/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/16/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/17/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/18/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/19/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/20/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/21/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/22/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/23/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/24/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/25/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/26/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/27/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/28/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/29/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/29/avatar.svg"></a>
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/https-proxy-agent/node_modules/debug/package.json b/backend/node_modules/https-proxy-agent/node_modules/debug/package.json
new file mode 100644
index 0000000..cdfa2be
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/debug/package.json
@@ -0,0 +1,101 @@
+{
+ "_from": "debug@4",
+ "_id": "debug@4.3.3",
+ "_inBundle": false,
+ "_integrity": "sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==",
+ "_location": "/https-proxy-agent/debug",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "debug@4",
+ "name": "debug",
+ "escapedName": "debug",
+ "rawSpec": "4",
+ "saveSpec": null,
+ "fetchSpec": "4"
+ },
+ "_requiredBy": [
+ "/https-proxy-agent"
+ ],
+ "_resolved": "https://registry.npmjs.org/debug/-/debug-4.3.3.tgz",
+ "_shasum": "04266e0b70a98d4462e6e288e38259213332b664",
+ "_spec": "debug@4",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/https-proxy-agent",
+ "author": {
+ "name": "Josh Junon",
+ "email": "josh.junon@protonmail.com"
+ },
+ "browser": "./src/browser.js",
+ "bugs": {
+ "url": "https://github.com/debug-js/debug/issues"
+ },
+ "bundleDependencies": false,
+ "contributors": [
+ {
+ "name": "TJ Holowaychuk",
+ "email": "tj@vision-media.ca"
+ },
+ {
+ "name": "Nathan Rajlich",
+ "email": "nathan@tootallnate.net",
+ "url": "http://n8.io"
+ },
+ {
+ "name": "Andrew Rhyne",
+ "email": "rhyneandrew@gmail.com"
+ }
+ ],
+ "dependencies": {
+ "ms": "2.1.2"
+ },
+ "deprecated": false,
+ "description": "Lightweight debugging utility for Node.js and the browser",
+ "devDependencies": {
+ "brfs": "^2.0.1",
+ "browserify": "^16.2.3",
+ "coveralls": "^3.0.2",
+ "istanbul": "^0.4.5",
+ "karma": "^3.1.4",
+ "karma-browserify": "^6.0.0",
+ "karma-chrome-launcher": "^2.2.0",
+ "karma-mocha": "^1.3.0",
+ "mocha": "^5.2.0",
+ "mocha-lcov-reporter": "^1.2.0",
+ "xo": "^0.23.0"
+ },
+ "engines": {
+ "node": ">=6.0"
+ },
+ "files": [
+ "src",
+ "LICENSE",
+ "README.md"
+ ],
+ "homepage": "https://github.com/debug-js/debug#readme",
+ "keywords": [
+ "debug",
+ "log",
+ "debugger"
+ ],
+ "license": "MIT",
+ "main": "./src/index.js",
+ "name": "debug",
+ "peerDependenciesMeta": {
+ "supports-color": {
+ "optional": true
+ }
+ },
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/debug-js/debug.git"
+ },
+ "scripts": {
+ "lint": "xo",
+ "test": "npm run test:node && npm run test:browser && npm run lint",
+ "test:browser": "karma start --single-run",
+ "test:coverage": "cat ./coverage/lcov.info | coveralls",
+ "test:node": "istanbul cover _mocha -- test.js"
+ },
+ "version": "4.3.3"
+}
diff --git a/backend/node_modules/https-proxy-agent/node_modules/debug/src/browser.js b/backend/node_modules/https-proxy-agent/node_modules/debug/src/browser.js
new file mode 100644
index 0000000..cd0fc35
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/debug/src/browser.js
@@ -0,0 +1,269 @@
+/* eslint-env browser */
+
+/**
+ * This is the web browser implementation of `debug()`.
+ */
+
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = localstorage();
+exports.destroy = (() => {
+ let warned = false;
+
+ return () => {
+ if (!warned) {
+ warned = true;
+ console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+ }
+ };
+})();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+ '#0000CC',
+ '#0000FF',
+ '#0033CC',
+ '#0033FF',
+ '#0066CC',
+ '#0066FF',
+ '#0099CC',
+ '#0099FF',
+ '#00CC00',
+ '#00CC33',
+ '#00CC66',
+ '#00CC99',
+ '#00CCCC',
+ '#00CCFF',
+ '#3300CC',
+ '#3300FF',
+ '#3333CC',
+ '#3333FF',
+ '#3366CC',
+ '#3366FF',
+ '#3399CC',
+ '#3399FF',
+ '#33CC00',
+ '#33CC33',
+ '#33CC66',
+ '#33CC99',
+ '#33CCCC',
+ '#33CCFF',
+ '#6600CC',
+ '#6600FF',
+ '#6633CC',
+ '#6633FF',
+ '#66CC00',
+ '#66CC33',
+ '#9900CC',
+ '#9900FF',
+ '#9933CC',
+ '#9933FF',
+ '#99CC00',
+ '#99CC33',
+ '#CC0000',
+ '#CC0033',
+ '#CC0066',
+ '#CC0099',
+ '#CC00CC',
+ '#CC00FF',
+ '#CC3300',
+ '#CC3333',
+ '#CC3366',
+ '#CC3399',
+ '#CC33CC',
+ '#CC33FF',
+ '#CC6600',
+ '#CC6633',
+ '#CC9900',
+ '#CC9933',
+ '#CCCC00',
+ '#CCCC33',
+ '#FF0000',
+ '#FF0033',
+ '#FF0066',
+ '#FF0099',
+ '#FF00CC',
+ '#FF00FF',
+ '#FF3300',
+ '#FF3333',
+ '#FF3366',
+ '#FF3399',
+ '#FF33CC',
+ '#FF33FF',
+ '#FF6600',
+ '#FF6633',
+ '#FF9900',
+ '#FF9933',
+ '#FFCC00',
+ '#FFCC33'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+// eslint-disable-next-line complexity
+function useColors() {
+ // NB: In an Electron preload script, document will be defined but not fully
+ // initialized. Since we know we're in Chrome, we'll just detect this case
+ // explicitly
+ if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+ return true;
+ }
+
+ // Internet Explorer and Edge do not support colors.
+ if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+ return false;
+ }
+
+ // Is webkit? http://stackoverflow.com/a/16459606/376773
+ // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+ return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+ // Is firebug? http://stackoverflow.com/a/398120/376773
+ (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+ // Is firefox >= v31?
+ // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+ (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
+ // Double check webkit in userAgent just in case we are in a worker
+ (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+ args[0] = (this.useColors ? '%c' : '') +
+ this.namespace +
+ (this.useColors ? ' %c' : ' ') +
+ args[0] +
+ (this.useColors ? '%c ' : ' ') +
+ '+' + module.exports.humanize(this.diff);
+
+ if (!this.useColors) {
+ return;
+ }
+
+ const c = 'color: ' + this.color;
+ args.splice(1, 0, c, 'color: inherit');
+
+ // The final "%c" is somewhat tricky, because there could be other
+ // arguments passed either before or after the %c, so we need to
+ // figure out the correct index to insert the CSS into
+ let index = 0;
+ let lastC = 0;
+ args[0].replace(/%[a-zA-Z%]/g, match => {
+ if (match === '%%') {
+ return;
+ }
+ index++;
+ if (match === '%c') {
+ // We only are interested in the *last* %c
+ // (the user may have provided their own)
+ lastC = index;
+ }
+ });
+
+ args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.debug()` when available.
+ * No-op when `console.debug` is not a "function".
+ * If `console.debug` is not available, falls back
+ * to `console.log`.
+ *
+ * @api public
+ */
+exports.log = console.debug || console.log || (() => {});
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+ try {
+ if (namespaces) {
+ exports.storage.setItem('debug', namespaces);
+ } else {
+ exports.storage.removeItem('debug');
+ }
+ } catch (error) {
+ // Swallow
+ // XXX (@Qix-) should we be logging these?
+ }
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+function load() {
+ let r;
+ try {
+ r = exports.storage.getItem('debug');
+ } catch (error) {
+ // Swallow
+ // XXX (@Qix-) should we be logging these?
+ }
+
+ // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+ if (!r && typeof process !== 'undefined' && 'env' in process) {
+ r = process.env.DEBUG;
+ }
+
+ return r;
+}
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+ try {
+ // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+ // The Browser also has localStorage in the global context.
+ return localStorage;
+ } catch (error) {
+ // Swallow
+ // XXX (@Qix-) should we be logging these?
+ }
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+formatters.j = function (v) {
+ try {
+ return JSON.stringify(v);
+ } catch (error) {
+ return '[UnexpectedJSONParseError]: ' + error.message;
+ }
+};
diff --git a/backend/node_modules/https-proxy-agent/node_modules/debug/src/common.js b/backend/node_modules/https-proxy-agent/node_modules/debug/src/common.js
new file mode 100644
index 0000000..6d571d2
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/debug/src/common.js
@@ -0,0 +1,274 @@
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ */
+
+function setup(env) {
+ createDebug.debug = createDebug;
+ createDebug.default = createDebug;
+ createDebug.coerce = coerce;
+ createDebug.disable = disable;
+ createDebug.enable = enable;
+ createDebug.enabled = enabled;
+ createDebug.humanize = require('ms');
+ createDebug.destroy = destroy;
+
+ Object.keys(env).forEach(key => {
+ createDebug[key] = env[key];
+ });
+
+ /**
+ * The currently active debug mode names, and names to skip.
+ */
+
+ createDebug.names = [];
+ createDebug.skips = [];
+
+ /**
+ * Map of special "%n" handling functions, for the debug "format" argument.
+ *
+ * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+ */
+ createDebug.formatters = {};
+
+ /**
+ * Selects a color for a debug namespace
+ * @param {String} namespace The namespace string for the debug instance to be colored
+ * @return {Number|String} An ANSI color code for the given namespace
+ * @api private
+ */
+ function selectColor(namespace) {
+ let hash = 0;
+
+ for (let i = 0; i < namespace.length; i++) {
+ hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
+ hash |= 0; // Convert to 32bit integer
+ }
+
+ return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+ }
+ createDebug.selectColor = selectColor;
+
+ /**
+ * Create a debugger with the given `namespace`.
+ *
+ * @param {String} namespace
+ * @return {Function}
+ * @api public
+ */
+ function createDebug(namespace) {
+ let prevTime;
+ let enableOverride = null;
+ let namespacesCache;
+ let enabledCache;
+
+ function debug(...args) {
+ // Disabled?
+ if (!debug.enabled) {
+ return;
+ }
+
+ const self = debug;
+
+ // Set `diff` timestamp
+ const curr = Number(new Date());
+ const ms = curr - (prevTime || curr);
+ self.diff = ms;
+ self.prev = prevTime;
+ self.curr = curr;
+ prevTime = curr;
+
+ args[0] = createDebug.coerce(args[0]);
+
+ if (typeof args[0] !== 'string') {
+ // Anything else let's inspect with %O
+ args.unshift('%O');
+ }
+
+ // Apply any `formatters` transformations
+ let index = 0;
+ args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
+ // If we encounter an escaped % then don't increase the array index
+ if (match === '%%') {
+ return '%';
+ }
+ index++;
+ const formatter = createDebug.formatters[format];
+ if (typeof formatter === 'function') {
+ const val = args[index];
+ match = formatter.call(self, val);
+
+ // Now we need to remove `args[index]` since it's inlined in the `format`
+ args.splice(index, 1);
+ index--;
+ }
+ return match;
+ });
+
+ // Apply env-specific formatting (colors, etc.)
+ createDebug.formatArgs.call(self, args);
+
+ const logFn = self.log || createDebug.log;
+ logFn.apply(self, args);
+ }
+
+ debug.namespace = namespace;
+ debug.useColors = createDebug.useColors();
+ debug.color = createDebug.selectColor(namespace);
+ debug.extend = extend;
+ debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.
+
+ Object.defineProperty(debug, 'enabled', {
+ enumerable: true,
+ configurable: false,
+ get: () => {
+ if (enableOverride !== null) {
+ return enableOverride;
+ }
+ if (namespacesCache !== createDebug.namespaces) {
+ namespacesCache = createDebug.namespaces;
+ enabledCache = createDebug.enabled(namespace);
+ }
+
+ return enabledCache;
+ },
+ set: v => {
+ enableOverride = v;
+ }
+ });
+
+ // Env-specific initialization logic for debug instances
+ if (typeof createDebug.init === 'function') {
+ createDebug.init(debug);
+ }
+
+ return debug;
+ }
+
+ function extend(namespace, delimiter) {
+ const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+ newDebug.log = this.log;
+ return newDebug;
+ }
+
+ /**
+ * Enables a debug mode by namespaces. This can include modes
+ * separated by a colon and wildcards.
+ *
+ * @param {String} namespaces
+ * @api public
+ */
+ function enable(namespaces) {
+ createDebug.save(namespaces);
+ createDebug.namespaces = namespaces;
+
+ createDebug.names = [];
+ createDebug.skips = [];
+
+ let i;
+ const split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
+ const len = split.length;
+
+ for (i = 0; i < len; i++) {
+ if (!split[i]) {
+ // ignore empty strings
+ continue;
+ }
+
+ namespaces = split[i].replace(/\*/g, '.*?');
+
+ if (namespaces[0] === '-') {
+ createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
+ } else {
+ createDebug.names.push(new RegExp('^' + namespaces + '$'));
+ }
+ }
+ }
+
+ /**
+ * Disable debug output.
+ *
+ * @return {String} namespaces
+ * @api public
+ */
+ function disable() {
+ const namespaces = [
+ ...createDebug.names.map(toNamespace),
+ ...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace)
+ ].join(',');
+ createDebug.enable('');
+ return namespaces;
+ }
+
+ /**
+ * Returns true if the given mode name is enabled, false otherwise.
+ *
+ * @param {String} name
+ * @return {Boolean}
+ * @api public
+ */
+ function enabled(name) {
+ if (name[name.length - 1] === '*') {
+ return true;
+ }
+
+ let i;
+ let len;
+
+ for (i = 0, len = createDebug.skips.length; i < len; i++) {
+ if (createDebug.skips[i].test(name)) {
+ return false;
+ }
+ }
+
+ for (i = 0, len = createDebug.names.length; i < len; i++) {
+ if (createDebug.names[i].test(name)) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Convert regexp to namespace
+ *
+ * @param {RegExp} regxep
+ * @return {String} namespace
+ * @api private
+ */
+ function toNamespace(regexp) {
+ return regexp.toString()
+ .substring(2, regexp.toString().length - 2)
+ .replace(/\.\*\?$/, '*');
+ }
+
+ /**
+ * Coerce `val`.
+ *
+ * @param {Mixed} val
+ * @return {Mixed}
+ * @api private
+ */
+ function coerce(val) {
+ if (val instanceof Error) {
+ return val.stack || val.message;
+ }
+ return val;
+ }
+
+ /**
+ * XXX DO NOT USE. This is a temporary stub function.
+ * XXX It WILL be removed in the next major release.
+ */
+ function destroy() {
+ console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+ }
+
+ createDebug.enable(createDebug.load());
+
+ return createDebug;
+}
+
+module.exports = setup;
diff --git a/backend/node_modules/https-proxy-agent/node_modules/debug/src/index.js b/backend/node_modules/https-proxy-agent/node_modules/debug/src/index.js
new file mode 100644
index 0000000..bf4c57f
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/debug/src/index.js
@@ -0,0 +1,10 @@
+/**
+ * Detect Electron renderer / nwjs process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {
+ module.exports = require('./browser.js');
+} else {
+ module.exports = require('./node.js');
+}
diff --git a/backend/node_modules/https-proxy-agent/node_modules/debug/src/node.js b/backend/node_modules/https-proxy-agent/node_modules/debug/src/node.js
new file mode 100644
index 0000000..79bc085
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/debug/src/node.js
@@ -0,0 +1,263 @@
+/**
+ * Module dependencies.
+ */
+
+const tty = require('tty');
+const util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ */
+
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.destroy = util.deprecate(
+ () => {},
+ 'Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'
+);
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+try {
+ // Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
+ // eslint-disable-next-line import/no-extraneous-dependencies
+ const supportsColor = require('supports-color');
+
+ if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
+ exports.colors = [
+ 20,
+ 21,
+ 26,
+ 27,
+ 32,
+ 33,
+ 38,
+ 39,
+ 40,
+ 41,
+ 42,
+ 43,
+ 44,
+ 45,
+ 56,
+ 57,
+ 62,
+ 63,
+ 68,
+ 69,
+ 74,
+ 75,
+ 76,
+ 77,
+ 78,
+ 79,
+ 80,
+ 81,
+ 92,
+ 93,
+ 98,
+ 99,
+ 112,
+ 113,
+ 128,
+ 129,
+ 134,
+ 135,
+ 148,
+ 149,
+ 160,
+ 161,
+ 162,
+ 163,
+ 164,
+ 165,
+ 166,
+ 167,
+ 168,
+ 169,
+ 170,
+ 171,
+ 172,
+ 173,
+ 178,
+ 179,
+ 184,
+ 185,
+ 196,
+ 197,
+ 198,
+ 199,
+ 200,
+ 201,
+ 202,
+ 203,
+ 204,
+ 205,
+ 206,
+ 207,
+ 208,
+ 209,
+ 214,
+ 215,
+ 220,
+ 221
+ ];
+ }
+} catch (error) {
+ // Swallow - we only care if `supports-color` is available; it doesn't have to be.
+}
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ * $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(key => {
+ return /^debug_/i.test(key);
+}).reduce((obj, key) => {
+ // Camel-case
+ const prop = key
+ .substring(6)
+ .toLowerCase()
+ .replace(/_([a-z])/g, (_, k) => {
+ return k.toUpperCase();
+ });
+
+ // Coerce string value into JS value
+ let val = process.env[key];
+ if (/^(yes|on|true|enabled)$/i.test(val)) {
+ val = true;
+ } else if (/^(no|off|false|disabled)$/i.test(val)) {
+ val = false;
+ } else if (val === 'null') {
+ val = null;
+ } else {
+ val = Number(val);
+ }
+
+ obj[prop] = val;
+ return obj;
+}, {});
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+ return 'colors' in exports.inspectOpts ?
+ Boolean(exports.inspectOpts.colors) :
+ tty.isatty(process.stderr.fd);
+}
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+ const {namespace: name, useColors} = this;
+
+ if (useColors) {
+ const c = this.color;
+ const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
+ const prefix = ` ${colorCode};1m${name} \u001B[0m`;
+
+ args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+ args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
+ } else {
+ args[0] = getDate() + name + ' ' + args[0];
+ }
+}
+
+function getDate() {
+ if (exports.inspectOpts.hideDate) {
+ return '';
+ }
+ return new Date().toISOString() + ' ';
+}
+
+/**
+ * Invokes `util.format()` with the specified arguments and writes to stderr.
+ */
+
+function log(...args) {
+ return process.stderr.write(util.format(...args) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+ if (namespaces) {
+ process.env.DEBUG = namespaces;
+ } else {
+ // If you set a process.env field to null or undefined, it gets cast to the
+ // string 'null' or 'undefined'. Just delete instead.
+ delete process.env.DEBUG;
+ }
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+ return process.env.DEBUG;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init(debug) {
+ debug.inspectOpts = {};
+
+ const keys = Object.keys(exports.inspectOpts);
+ for (let i = 0; i < keys.length; i++) {
+ debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+ }
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+formatters.o = function (v) {
+ this.inspectOpts.colors = this.useColors;
+ return util.inspect(v, this.inspectOpts)
+ .split('\n')
+ .map(str => str.trim())
+ .join(' ');
+};
+
+/**
+ * Map %O to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+formatters.O = function (v) {
+ this.inspectOpts.colors = this.useColors;
+ return util.inspect(v, this.inspectOpts);
+};
diff --git a/backend/node_modules/https-proxy-agent/node_modules/ms/index.js b/backend/node_modules/https-proxy-agent/node_modules/ms/index.js
new file mode 100644
index 0000000..c4498bc
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/ms/index.js
@@ -0,0 +1,162 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ * - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function(val, options) {
+ options = options || {};
+ var type = typeof val;
+ if (type === 'string' && val.length > 0) {
+ return parse(val);
+ } else if (type === 'number' && isFinite(val)) {
+ return options.long ? fmtLong(val) : fmtShort(val);
+ }
+ throw new Error(
+ 'val is not a non-empty string or a valid number. val=' +
+ JSON.stringify(val)
+ );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+ str = String(str);
+ if (str.length > 100) {
+ return;
+ }
+ var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+ str
+ );
+ if (!match) {
+ return;
+ }
+ var n = parseFloat(match[1]);
+ var type = (match[2] || 'ms').toLowerCase();
+ switch (type) {
+ case 'years':
+ case 'year':
+ case 'yrs':
+ case 'yr':
+ case 'y':
+ return n * y;
+ case 'weeks':
+ case 'week':
+ case 'w':
+ return n * w;
+ case 'days':
+ case 'day':
+ case 'd':
+ return n * d;
+ case 'hours':
+ case 'hour':
+ case 'hrs':
+ case 'hr':
+ case 'h':
+ return n * h;
+ case 'minutes':
+ case 'minute':
+ case 'mins':
+ case 'min':
+ case 'm':
+ return n * m;
+ case 'seconds':
+ case 'second':
+ case 'secs':
+ case 'sec':
+ case 's':
+ return n * s;
+ case 'milliseconds':
+ case 'millisecond':
+ case 'msecs':
+ case 'msec':
+ case 'ms':
+ return n;
+ default:
+ return undefined;
+ }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+ var msAbs = Math.abs(ms);
+ if (msAbs >= d) {
+ return Math.round(ms / d) + 'd';
+ }
+ if (msAbs >= h) {
+ return Math.round(ms / h) + 'h';
+ }
+ if (msAbs >= m) {
+ return Math.round(ms / m) + 'm';
+ }
+ if (msAbs >= s) {
+ return Math.round(ms / s) + 's';
+ }
+ return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+ var msAbs = Math.abs(ms);
+ if (msAbs >= d) {
+ return plural(ms, msAbs, d, 'day');
+ }
+ if (msAbs >= h) {
+ return plural(ms, msAbs, h, 'hour');
+ }
+ if (msAbs >= m) {
+ return plural(ms, msAbs, m, 'minute');
+ }
+ if (msAbs >= s) {
+ return plural(ms, msAbs, s, 'second');
+ }
+ return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+ var isPlural = msAbs >= n * 1.5;
+ return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}
diff --git a/backend/node_modules/https-proxy-agent/node_modules/ms/license.md b/backend/node_modules/https-proxy-agent/node_modules/ms/license.md
new file mode 100644
index 0000000..69b6125
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/ms/license.md
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Zeit, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/backend/node_modules/https-proxy-agent/node_modules/ms/package.json b/backend/node_modules/https-proxy-agent/node_modules/ms/package.json
new file mode 100644
index 0000000..36a2485
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/ms/package.json
@@ -0,0 +1,69 @@
+{
+ "_from": "ms@2.1.2",
+ "_id": "ms@2.1.2",
+ "_inBundle": false,
+ "_integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+ "_location": "/https-proxy-agent/ms",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "version",
+ "registry": true,
+ "raw": "ms@2.1.2",
+ "name": "ms",
+ "escapedName": "ms",
+ "rawSpec": "2.1.2",
+ "saveSpec": null,
+ "fetchSpec": "2.1.2"
+ },
+ "_requiredBy": [
+ "/https-proxy-agent/debug"
+ ],
+ "_resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+ "_shasum": "d09d1f357b443f493382a8eb3ccd183872ae6009",
+ "_spec": "ms@2.1.2",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/https-proxy-agent/node_modules/debug",
+ "bugs": {
+ "url": "https://github.com/zeit/ms/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Tiny millisecond conversion utility",
+ "devDependencies": {
+ "eslint": "4.12.1",
+ "expect.js": "0.3.1",
+ "husky": "0.14.3",
+ "lint-staged": "5.0.0",
+ "mocha": "4.0.1"
+ },
+ "eslintConfig": {
+ "extends": "eslint:recommended",
+ "env": {
+ "node": true,
+ "es6": true
+ }
+ },
+ "files": [
+ "index.js"
+ ],
+ "homepage": "https://github.com/zeit/ms#readme",
+ "license": "MIT",
+ "lint-staged": {
+ "*.js": [
+ "npm run lint",
+ "prettier --single-quote --write",
+ "git add"
+ ]
+ },
+ "main": "./index",
+ "name": "ms",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/zeit/ms.git"
+ },
+ "scripts": {
+ "lint": "eslint lib/* bin/*",
+ "precommit": "lint-staged",
+ "test": "mocha tests.js"
+ },
+ "version": "2.1.2"
+}
diff --git a/backend/node_modules/https-proxy-agent/node_modules/ms/readme.md b/backend/node_modules/https-proxy-agent/node_modules/ms/readme.md
new file mode 100644
index 0000000..9a1996b
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/node_modules/ms/readme.md
@@ -0,0 +1,60 @@
+# ms
+
+[](https://travis-ci.org/zeit/ms)
+[](https://spectrum.chat/zeit)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days') // 172800000
+ms('1d') // 86400000
+ms('10h') // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h') // 7200000
+ms('1m') // 60000
+ms('5s') // 5000
+ms('1y') // 31557600000
+ms('100') // 100
+ms('-3 days') // -259200000
+ms('-1h') // -3600000
+ms('-200') // -200
+```
+
+### Convert from Milliseconds
+
+```js
+ms(60000) // "1m"
+ms(2 * 60000) // "2m"
+ms(-3 * 60000) // "-3m"
+ms(ms('10 hours')) // "10h"
+```
+
+### Time Format Written-Out
+
+```js
+ms(60000, { long: true }) // "1 minute"
+ms(2 * 60000, { long: true }) // "2 minutes"
+ms(-3 * 60000, { long: true }) // "-3 minutes"
+ms(ms('10 hours'), { long: true }) // "10 hours"
+```
+
+## Features
+
+- Works both in [Node.js](https://nodejs.org) and in the browser
+- If a number is supplied to `ms`, a string with a unit is returned
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`)
+- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned
+
+## Related Packages
+
+- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time.
+
+## Caught a Bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`
diff --git a/backend/node_modules/https-proxy-agent/package.json b/backend/node_modules/https-proxy-agent/package.json
new file mode 100644
index 0000000..886d08e
--- /dev/null
+++ b/backend/node_modules/https-proxy-agent/package.json
@@ -0,0 +1,86 @@
+{
+ "_from": "https-proxy-agent@^5.0.0",
+ "_id": "https-proxy-agent@5.0.0",
+ "_inBundle": false,
+ "_integrity": "sha512-EkYm5BcKUGiduxzSt3Eppko+PiNWNEpa4ySk9vTC6wDsQJW9rHSa+UhGNJoRYp7bz6Ht1eaRIa6QaJqO5rCFbA==",
+ "_location": "/https-proxy-agent",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "https-proxy-agent@^5.0.0",
+ "name": "https-proxy-agent",
+ "escapedName": "https-proxy-agent",
+ "rawSpec": "^5.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^5.0.0"
+ },
+ "_requiredBy": [
+ "/@mapbox/node-pre-gyp"
+ ],
+ "_resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-5.0.0.tgz",
+ "_shasum": "e2a90542abb68a762e0a0850f6c9edadfd8506b2",
+ "_spec": "https-proxy-agent@^5.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/@mapbox/node-pre-gyp",
+ "author": {
+ "name": "Nathan Rajlich",
+ "email": "nathan@tootallnate.net",
+ "url": "http://n8.io/"
+ },
+ "bugs": {
+ "url": "https://github.com/TooTallNate/node-https-proxy-agent/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "agent-base": "6",
+ "debug": "4"
+ },
+ "deprecated": false,
+ "description": "An HTTP(s) proxy `http.Agent` implementation for HTTPS",
+ "devDependencies": {
+ "@types/debug": "4",
+ "@types/node": "^12.12.11",
+ "@typescript-eslint/eslint-plugin": "1.6.0",
+ "@typescript-eslint/parser": "1.1.0",
+ "eslint": "5.16.0",
+ "eslint-config-airbnb": "17.1.0",
+ "eslint-config-prettier": "4.1.0",
+ "eslint-import-resolver-typescript": "1.1.1",
+ "eslint-plugin-import": "2.16.0",
+ "eslint-plugin-jsx-a11y": "6.2.1",
+ "eslint-plugin-react": "7.12.4",
+ "mocha": "^6.2.2",
+ "proxy": "1",
+ "rimraf": "^3.0.0",
+ "typescript": "^3.5.3"
+ },
+ "engines": {
+ "node": ">= 6"
+ },
+ "files": [
+ "dist"
+ ],
+ "homepage": "https://github.com/TooTallNate/node-https-proxy-agent#readme",
+ "keywords": [
+ "https",
+ "proxy",
+ "endpoint",
+ "agent"
+ ],
+ "license": "MIT",
+ "main": "dist/index",
+ "name": "https-proxy-agent",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/TooTallNate/node-https-proxy-agent.git"
+ },
+ "scripts": {
+ "build": "tsc",
+ "prebuild": "rimraf dist",
+ "prepublishOnly": "npm run build",
+ "test": "mocha --reporter spec",
+ "test-lint": "eslint src --ext .js,.ts"
+ },
+ "types": "dist/index",
+ "version": "5.0.0"
+}
diff --git a/backend/node_modules/inflight/LICENSE b/backend/node_modules/inflight/LICENSE
new file mode 100644
index 0000000..05eeeb8
--- /dev/null
+++ b/backend/node_modules/inflight/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/inflight/README.md b/backend/node_modules/inflight/README.md
new file mode 100644
index 0000000..6dc8929
--- /dev/null
+++ b/backend/node_modules/inflight/README.md
@@ -0,0 +1,37 @@
+# inflight
+
+Add callbacks to requests in flight to avoid async duplication
+
+## USAGE
+
+```javascript
+var inflight = require('inflight')
+
+// some request that does some stuff
+function req(key, callback) {
+ // key is any random string. like a url or filename or whatever.
+ //
+ // will return either a falsey value, indicating that the
+ // request for this key is already in flight, or a new callback
+ // which when called will call all callbacks passed to inflightk
+ // with the same key
+ callback = inflight(key, callback)
+
+ // If we got a falsey value back, then there's already a req going
+ if (!callback) return
+
+ // this is where you'd fetch the url or whatever
+ // callback is also once()-ified, so it can safely be assigned
+ // to multiple events etc. First call wins.
+ setTimeout(function() {
+ callback(null, key)
+ }, 100)
+}
+
+// only assigns a single setTimeout
+// when it dings, all cbs get called
+req('foo', cb1)
+req('foo', cb2)
+req('foo', cb3)
+req('foo', cb4)
+```
diff --git a/backend/node_modules/inflight/inflight.js b/backend/node_modules/inflight/inflight.js
new file mode 100644
index 0000000..48202b3
--- /dev/null
+++ b/backend/node_modules/inflight/inflight.js
@@ -0,0 +1,54 @@
+var wrappy = require('wrappy')
+var reqs = Object.create(null)
+var once = require('once')
+
+module.exports = wrappy(inflight)
+
+function inflight (key, cb) {
+ if (reqs[key]) {
+ reqs[key].push(cb)
+ return null
+ } else {
+ reqs[key] = [cb]
+ return makeres(key)
+ }
+}
+
+function makeres (key) {
+ return once(function RES () {
+ var cbs = reqs[key]
+ var len = cbs.length
+ var args = slice(arguments)
+
+ // XXX It's somewhat ambiguous whether a new callback added in this
+ // pass should be queued for later execution if something in the
+ // list of callbacks throws, or if it should just be discarded.
+ // However, it's such an edge case that it hardly matters, and either
+ // choice is likely as surprising as the other.
+ // As it happens, we do go ahead and schedule it for later execution.
+ try {
+ for (var i = 0; i < len; i++) {
+ cbs[i].apply(null, args)
+ }
+ } finally {
+ if (cbs.length > len) {
+ // added more in the interim.
+ // de-zalgo, just in case, but don't call again.
+ cbs.splice(0, len)
+ process.nextTick(function () {
+ RES.apply(null, args)
+ })
+ } else {
+ delete reqs[key]
+ }
+ }
+ })
+}
+
+function slice (args) {
+ var length = args.length
+ var array = []
+
+ for (var i = 0; i < length; i++) array[i] = args[i]
+ return array
+}
diff --git a/backend/node_modules/inflight/package.json b/backend/node_modules/inflight/package.json
new file mode 100644
index 0000000..9d69306
--- /dev/null
+++ b/backend/node_modules/inflight/package.json
@@ -0,0 +1,58 @@
+{
+ "_from": "inflight@^1.0.4",
+ "_id": "inflight@1.0.6",
+ "_inBundle": false,
+ "_integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
+ "_location": "/inflight",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "inflight@^1.0.4",
+ "name": "inflight",
+ "escapedName": "inflight",
+ "rawSpec": "^1.0.4",
+ "saveSpec": null,
+ "fetchSpec": "^1.0.4"
+ },
+ "_requiredBy": [
+ "/glob"
+ ],
+ "_resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
+ "_shasum": "49bd6331d7d02d0c09bc910a1075ba8165b56df9",
+ "_spec": "inflight@^1.0.4",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/glob",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bugs": {
+ "url": "https://github.com/isaacs/inflight/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "once": "^1.3.0",
+ "wrappy": "1"
+ },
+ "deprecated": false,
+ "description": "Add callbacks to requests in flight to avoid async duplication",
+ "devDependencies": {
+ "tap": "^7.1.2"
+ },
+ "files": [
+ "inflight.js"
+ ],
+ "homepage": "https://github.com/isaacs/inflight",
+ "license": "ISC",
+ "main": "inflight.js",
+ "name": "inflight",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/npm/inflight.git"
+ },
+ "scripts": {
+ "test": "tap test.js --100"
+ },
+ "version": "1.0.6"
+}
diff --git a/backend/node_modules/minipass/LICENSE b/backend/node_modules/minipass/LICENSE
new file mode 100644
index 0000000..20a4762
--- /dev/null
+++ b/backend/node_modules/minipass/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) npm, Inc. and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/minipass/README.md b/backend/node_modules/minipass/README.md
new file mode 100644
index 0000000..59fa629
--- /dev/null
+++ b/backend/node_modules/minipass/README.md
@@ -0,0 +1,613 @@
+# minipass
+
+A _very_ minimal implementation of a [PassThrough
+stream](https://nodejs.org/api/stream.html#stream_class_stream_passthrough)
+
+[It's very
+fast](https://docs.google.com/spreadsheets/d/1oObKSrVwLX_7Ut4Z6g3fZW-AX1j1-k6w-cDsrkaSbHM/edit#gid=0)
+for objects, strings, and buffers.
+
+Supports `pipe()`ing (including multi-`pipe()` and backpressure transmission),
+buffering data until either a `data` event handler or `pipe()` is added (so
+you don't lose the first chunk), and most other cases where PassThrough is
+a good idea.
+
+There is a `read()` method, but it's much more efficient to consume data
+from this stream via `'data'` events or by calling `pipe()` into some other
+stream. Calling `read()` requires the buffer to be flattened in some
+cases, which requires copying memory.
+
+There is also no `unpipe()` method. Once you start piping, there is no
+stopping it!
+
+If you set `objectMode: true` in the options, then whatever is written will
+be emitted. Otherwise, it'll do a minimal amount of Buffer copying to
+ensure proper Streams semantics when `read(n)` is called.
+
+`objectMode` can also be set by doing `stream.objectMode = true`, or by
+writing any non-string/non-buffer data. `objectMode` cannot be set to
+false once it is set.
+
+This is not a `through` or `through2` stream. It doesn't transform the
+data, it just passes it right through. If you want to transform the data,
+extend the class, and override the `write()` method. Once you're done
+transforming the data however you want, call `super.write()` with the
+transform output.
+
+For some examples of streams that extend Minipass in various ways, check
+out:
+
+- [minizlib](http://npm.im/minizlib)
+- [fs-minipass](http://npm.im/fs-minipass)
+- [tar](http://npm.im/tar)
+- [minipass-collect](http://npm.im/minipass-collect)
+- [minipass-flush](http://npm.im/minipass-flush)
+- [minipass-pipeline](http://npm.im/minipass-pipeline)
+- [tap](http://npm.im/tap)
+- [tap-parser](http://npm.im/tap-parser)
+- [treport](http://npm.im/treport)
+- [minipass-fetch](http://npm.im/minipass-fetch)
+- [pacote](http://npm.im/pacote)
+- [make-fetch-happen](http://npm.im/make-fetch-happen)
+- [cacache](http://npm.im/cacache)
+- [ssri](http://npm.im/ssri)
+- [npm-registry-fetch](http://npm.im/npm-registry-fetch)
+- [minipass-json-stream](http://npm.im/minipass-json-stream)
+- [minipass-sized](http://npm.im/minipass-sized)
+
+## Differences from Node.js Streams
+
+There are several things that make Minipass streams different from (and in
+some ways superior to) Node.js core streams.
+
+Please read these caveats if you are familiar with node-core streams and
+intend to use Minipass streams in your programs.
+
+### Timing
+
+Minipass streams are designed to support synchronous use-cases. Thus, data
+is emitted as soon as it is available, always. It is buffered until read,
+but no longer. Another way to look at it is that Minipass streams are
+exactly as synchronous as the logic that writes into them.
+
+This can be surprising if your code relies on `PassThrough.write()` always
+providing data on the next tick rather than the current one, or being able
+to call `resume()` and not have the entire buffer disappear immediately.
+
+However, without this synchronicity guarantee, there would be no way for
+Minipass to achieve the speeds it does, or support the synchronous use
+cases that it does. Simply put, waiting takes time.
+
+This non-deferring approach makes Minipass streams much easier to reason
+about, especially in the context of Promises and other flow-control
+mechanisms.
+
+### No High/Low Water Marks
+
+Node.js core streams will optimistically fill up a buffer, returning `true`
+on all writes until the limit is hit, even if the data has nowhere to go.
+Then, they will not attempt to draw more data in until the buffer size dips
+below a minimum value.
+
+Minipass streams are much simpler. The `write()` method will return `true`
+if the data has somewhere to go (which is to say, given the timing
+guarantees, that the data is already there by the time `write()` returns).
+
+If the data has nowhere to go, then `write()` returns false, and the data
+sits in a buffer, to be drained out immediately as soon as anyone consumes
+it.
+
+### Hazards of Buffering (or: Why Minipass Is So Fast)
+
+Since data written to a Minipass stream is immediately written all the way
+through the pipeline, and `write()` always returns true/false based on
+whether the data was fully flushed, backpressure is communicated
+immediately to the upstream caller. This minimizes buffering.
+
+Consider this case:
+
+```js
+const {PassThrough} = require('stream')
+const p1 = new PassThrough({ highWaterMark: 1024 })
+const p2 = new PassThrough({ highWaterMark: 1024 })
+const p3 = new PassThrough({ highWaterMark: 1024 })
+const p4 = new PassThrough({ highWaterMark: 1024 })
+
+p1.pipe(p2).pipe(p3).pipe(p4)
+p4.on('data', () => console.log('made it through'))
+
+// this returns false and buffers, then writes to p2 on next tick (1)
+// p2 returns false and buffers, pausing p1, then writes to p3 on next tick (2)
+// p3 returns false and buffers, pausing p2, then writes to p4 on next tick (3)
+// p4 returns false and buffers, pausing p3, then emits 'data' and 'drain'
+// on next tick (4)
+// p3 sees p4's 'drain' event, and calls resume(), emitting 'resume' and
+// 'drain' on next tick (5)
+// p2 sees p3's 'drain', calls resume(), emits 'resume' and 'drain' on next tick (6)
+// p1 sees p2's 'drain', calls resume(), emits 'resume' and 'drain' on next
+// tick (7)
+
+p1.write(Buffer.alloc(2048)) // returns false
+```
+
+Along the way, the data was buffered and deferred at each stage, and
+multiple event deferrals happened, for an unblocked pipeline where it was
+perfectly safe to write all the way through!
+
+Furthermore, setting a `highWaterMark` of `1024` might lead someone reading
+the code to think an advisory maximum of 1KiB is being set for the
+pipeline. However, the actual advisory buffering level is the _sum_ of
+`highWaterMark` values, since each one has its own bucket.
+
+Consider the Minipass case:
+
+```js
+const m1 = new Minipass()
+const m2 = new Minipass()
+const m3 = new Minipass()
+const m4 = new Minipass()
+
+m1.pipe(m2).pipe(m3).pipe(m4)
+m4.on('data', () => console.log('made it through'))
+
+// m1 is flowing, so it writes the data to m2 immediately
+// m2 is flowing, so it writes the data to m3 immediately
+// m3 is flowing, so it writes the data to m4 immediately
+// m4 is flowing, so it fires the 'data' event immediately, returns true
+// m4's write returned true, so m3 is still flowing, returns true
+// m3's write returned true, so m2 is still flowing, returns true
+// m2's write returned true, so m1 is still flowing, returns true
+// No event deferrals or buffering along the way!
+
+m1.write(Buffer.alloc(2048)) // returns true
+```
+
+It is extremely unlikely that you _don't_ want to buffer any data written,
+or _ever_ buffer data that can be flushed all the way through. Neither
+node-core streams nor Minipass ever fail to buffer written data, but
+node-core streams do a lot of unnecessary buffering and pausing.
+
+As always, the faster implementation is the one that does less stuff and
+waits less time to do it.
+
+### Immediately emit `end` for empty streams (when not paused)
+
+If a stream is not paused, and `end()` is called before writing any data
+into it, then it will emit `end` immediately.
+
+If you have logic that occurs on the `end` event which you don't want to
+potentially happen immediately (for example, closing file descriptors,
+moving on to the next entry in an archive parse stream, etc.) then be sure
+to call `stream.pause()` on creation, and then `stream.resume()` once you
+are ready to respond to the `end` event.
+
+### Emit `end` When Asked
+
+One hazard of immediately emitting `'end'` is that you may not yet have had
+a chance to add a listener. In order to avoid this hazard, Minipass
+streams safely re-emit the `'end'` event if a new listener is added after
+`'end'` has been emitted.
+
+Ie, if you do `stream.on('end', someFunction)`, and the stream has already
+emitted `end`, then it will call the handler right away. (You can think of
+this somewhat like attaching a new `.then(fn)` to a previously-resolved
+Promise.)
+
+To prevent calling handlers multiple times who would not expect multiple
+ends to occur, all listeners are removed from the `'end'` event whenever it
+is emitted.
+
+### Impact of "immediate flow" on Tee-streams
+
+A "tee stream" is a stream piping to multiple destinations:
+
+```js
+const tee = new Minipass()
+t.pipe(dest1)
+t.pipe(dest2)
+t.write('foo') // goes to both destinations
+```
+
+Since Minipass streams _immediately_ process any pending data through the
+pipeline when a new pipe destination is added, this can have surprising
+effects, especially when a stream comes in from some other function and may
+or may not have data in its buffer.
+
+```js
+// WARNING! WILL LOSE DATA!
+const src = new Minipass()
+src.write('foo')
+src.pipe(dest1) // 'foo' chunk flows to dest1 immediately, and is gone
+src.pipe(dest2) // gets nothing!
+```
+
+The solution is to create a dedicated tee-stream junction that pipes to
+both locations, and then pipe to _that_ instead.
+
+```js
+// Safe example: tee to both places
+const src = new Minipass()
+src.write('foo')
+const tee = new Minipass()
+tee.pipe(dest1)
+tee.pipe(dest2)
+src.pipe(tee) // tee gets 'foo', pipes to both locations
+```
+
+The same caveat applies to `on('data')` event listeners. The first one
+added will _immediately_ receive all of the data, leaving nothing for the
+second:
+
+```js
+// WARNING! WILL LOSE DATA!
+const src = new Minipass()
+src.write('foo')
+src.on('data', handler1) // receives 'foo' right away
+src.on('data', handler2) // nothing to see here!
+```
+
+Using a dedicated tee-stream can be used in this case as well:
+
+```js
+// Safe example: tee to both data handlers
+const src = new Minipass()
+src.write('foo')
+const tee = new Minipass()
+tee.on('data', handler1)
+tee.on('data', handler2)
+src.pipe(tee)
+```
+
+## USAGE
+
+It's a stream! Use it like a stream and it'll most likely do what you
+want.
+
+```js
+const Minipass = require('minipass')
+const mp = new Minipass(options) // optional: { encoding, objectMode }
+mp.write('foo')
+mp.pipe(someOtherStream)
+mp.end('bar')
+```
+
+### OPTIONS
+
+* `encoding` How would you like the data coming _out_ of the stream to be
+ encoded? Accepts any values that can be passed to `Buffer.toString()`.
+* `objectMode` Emit data exactly as it comes in. This will be flipped on
+ by default if you write() something other than a string or Buffer at any
+ point. Setting `objectMode: true` will prevent setting any encoding
+ value.
+
+### API
+
+Implements the user-facing portions of Node.js's `Readable` and `Writable`
+streams.
+
+### Methods
+
+* `write(chunk, [encoding], [callback])` - Put data in. (Note that, in the
+ base Minipass class, the same data will come out.) Returns `false` if
+ the stream will buffer the next write, or true if it's still in "flowing"
+ mode.
+* `end([chunk, [encoding]], [callback])` - Signal that you have no more
+ data to write. This will queue an `end` event to be fired when all the
+ data has been consumed.
+* `setEncoding(encoding)` - Set the encoding for data coming of the stream.
+ This can only be done once.
+* `pause()` - No more data for a while, please. This also prevents `end`
+ from being emitted for empty streams until the stream is resumed.
+* `resume()` - Resume the stream. If there's data in the buffer, it is all
+ discarded. Any buffered events are immediately emitted.
+* `pipe(dest)` - Send all output to the stream provided. There is no way
+ to unpipe. When data is emitted, it is immediately written to any and
+ all pipe destinations.
+* `on(ev, fn)`, `emit(ev, fn)` - Minipass streams are EventEmitters. Some
+ events are given special treatment, however. (See below under "events".)
+* `promise()` - Returns a Promise that resolves when the stream emits
+ `end`, or rejects if the stream emits `error`.
+* `collect()` - Return a Promise that resolves on `end` with an array
+ containing each chunk of data that was emitted, or rejects if the stream
+ emits `error`. Note that this consumes the stream data.
+* `concat()` - Same as `collect()`, but concatenates the data into a single
+ Buffer object. Will reject the returned promise if the stream is in
+ objectMode, or if it goes into objectMode by the end of the data.
+* `read(n)` - Consume `n` bytes of data out of the buffer. If `n` is not
+ provided, then consume all of it. If `n` bytes are not available, then
+ it returns null. **Note** consuming streams in this way is less
+ efficient, and can lead to unnecessary Buffer copying.
+* `destroy([er])` - Destroy the stream. If an error is provided, then an
+ `'error'` event is emitted. If the stream has a `close()` method, and
+ has not emitted a `'close'` event yet, then `stream.close()` will be
+ called. Any Promises returned by `.promise()`, `.collect()` or
+ `.concat()` will be rejected. After being destroyed, writing to the
+ stream will emit an error. No more data will be emitted if the stream is
+ destroyed, even if it was previously buffered.
+
+### Properties
+
+* `bufferLength` Read-only. Total number of bytes buffered, or in the case
+ of objectMode, the total number of objects.
+* `encoding` The encoding that has been set. (Setting this is equivalent
+ to calling `setEncoding(enc)` and has the same prohibition against
+ setting multiple times.)
+* `flowing` Read-only. Boolean indicating whether a chunk written to the
+ stream will be immediately emitted.
+* `emittedEnd` Read-only. Boolean indicating whether the end-ish events
+ (ie, `end`, `prefinish`, `finish`) have been emitted. Note that
+ listening on any end-ish event will immediateyl re-emit it if it has
+ already been emitted.
+* `writable` Whether the stream is writable. Default `true`. Set to
+ `false` when `end()`
+* `readable` Whether the stream is readable. Default `true`.
+* `buffer` A [yallist](http://npm.im/yallist) linked list of chunks written
+ to the stream that have not yet been emitted. (It's probably a bad idea
+ to mess with this.)
+* `pipes` A [yallist](http://npm.im/yallist) linked list of streams that
+ this stream is piping into. (It's probably a bad idea to mess with
+ this.)
+* `destroyed` A getter that indicates whether the stream was destroyed.
+* `paused` True if the stream has been explicitly paused, otherwise false.
+* `objectMode` Indicates whether the stream is in `objectMode`. Once set
+ to `true`, it cannot be set to `false`.
+
+### Events
+
+* `data` Emitted when there's data to read. Argument is the data to read.
+ This is never emitted while not flowing. If a listener is attached, that
+ will resume the stream.
+* `end` Emitted when there's no more data to read. This will be emitted
+ immediately for empty streams when `end()` is called. If a listener is
+ attached, and `end` was already emitted, then it will be emitted again.
+ All listeners are removed when `end` is emitted.
+* `prefinish` An end-ish event that follows the same logic as `end` and is
+ emitted in the same conditions where `end` is emitted. Emitted after
+ `'end'`.
+* `finish` An end-ish event that follows the same logic as `end` and is
+ emitted in the same conditions where `end` is emitted. Emitted after
+ `'prefinish'`.
+* `close` An indication that an underlying resource has been released.
+ Minipass does not emit this event, but will defer it until after `end`
+ has been emitted, since it throws off some stream libraries otherwise.
+* `drain` Emitted when the internal buffer empties, and it is again
+ suitable to `write()` into the stream.
+* `readable` Emitted when data is buffered and ready to be read by a
+ consumer.
+* `resume` Emitted when stream changes state from buffering to flowing
+ mode. (Ie, when `resume` is called, `pipe` is called, or a `data` event
+ listener is added.)
+
+### Static Methods
+
+* `Minipass.isStream(stream)` Returns `true` if the argument is a stream,
+ and false otherwise. To be considered a stream, the object must be
+ either an instance of Minipass, or an EventEmitter that has either a
+ `pipe()` method, or both `write()` and `end()` methods. (Pretty much any
+ stream in node-land will return `true` for this.)
+
+## EXAMPLES
+
+Here are some examples of things you can do with Minipass streams.
+
+### simple "are you done yet" promise
+
+```js
+mp.promise().then(() => {
+ // stream is finished
+}, er => {
+ // stream emitted an error
+})
+```
+
+### collecting
+
+```js
+mp.collect().then(all => {
+ // all is an array of all the data emitted
+ // encoding is supported in this case, so
+ // so the result will be a collection of strings if
+ // an encoding is specified, or buffers/objects if not.
+ //
+ // In an async function, you may do
+ // const data = await stream.collect()
+})
+```
+
+### collecting into a single blob
+
+This is a bit slower because it concatenates the data into one chunk for
+you, but if you're going to do it yourself anyway, it's convenient this
+way:
+
+```js
+mp.concat().then(onebigchunk => {
+ // onebigchunk is a string if the stream
+ // had an encoding set, or a buffer otherwise.
+})
+```
+
+### iteration
+
+You can iterate over streams synchronously or asynchronously in platforms
+that support it.
+
+Synchronous iteration will end when the currently available data is
+consumed, even if the `end` event has not been reached. In string and
+buffer mode, the data is concatenated, so unless multiple writes are
+occurring in the same tick as the `read()`, sync iteration loops will
+generally only have a single iteration.
+
+To consume chunks in this way exactly as they have been written, with no
+flattening, create the stream with the `{ objectMode: true }` option.
+
+```js
+const mp = new Minipass({ objectMode: true })
+mp.write('a')
+mp.write('b')
+for (let letter of mp) {
+ console.log(letter) // a, b
+}
+mp.write('c')
+mp.write('d')
+for (let letter of mp) {
+ console.log(letter) // c, d
+}
+mp.write('e')
+mp.end()
+for (let letter of mp) {
+ console.log(letter) // e
+}
+for (let letter of mp) {
+ console.log(letter) // nothing
+}
+```
+
+Asynchronous iteration will continue until the end event is reached,
+consuming all of the data.
+
+```js
+const mp = new Minipass({ encoding: 'utf8' })
+
+// some source of some data
+let i = 5
+const inter = setInterval(() => {
+ if (i-- > 0)
+ mp.write(Buffer.from('foo\n', 'utf8'))
+ else {
+ mp.end()
+ clearInterval(inter)
+ }
+}, 100)
+
+// consume the data with asynchronous iteration
+async function consume () {
+ for await (let chunk of mp) {
+ console.log(chunk)
+ }
+ return 'ok'
+}
+
+consume().then(res => console.log(res))
+// logs `foo\n` 5 times, and then `ok`
+```
+
+### subclass that `console.log()`s everything written into it
+
+```js
+class Logger extends Minipass {
+ write (chunk, encoding, callback) {
+ console.log('WRITE', chunk, encoding)
+ return super.write(chunk, encoding, callback)
+ }
+ end (chunk, encoding, callback) {
+ console.log('END', chunk, encoding)
+ return super.end(chunk, encoding, callback)
+ }
+}
+
+someSource.pipe(new Logger()).pipe(someDest)
+```
+
+### same thing, but using an inline anonymous class
+
+```js
+// js classes are fun
+someSource
+ .pipe(new (class extends Minipass {
+ emit (ev, ...data) {
+ // let's also log events, because debugging some weird thing
+ console.log('EMIT', ev)
+ return super.emit(ev, ...data)
+ }
+ write (chunk, encoding, callback) {
+ console.log('WRITE', chunk, encoding)
+ return super.write(chunk, encoding, callback)
+ }
+ end (chunk, encoding, callback) {
+ console.log('END', chunk, encoding)
+ return super.end(chunk, encoding, callback)
+ }
+ }))
+ .pipe(someDest)
+```
+
+### subclass that defers 'end' for some reason
+
+```js
+class SlowEnd extends Minipass {
+ emit (ev, ...args) {
+ if (ev === 'end') {
+ console.log('going to end, hold on a sec')
+ setTimeout(() => {
+ console.log('ok, ready to end now')
+ super.emit('end', ...args)
+ }, 100)
+ } else {
+ return super.emit(ev, ...args)
+ }
+ }
+}
+```
+
+### transform that creates newline-delimited JSON
+
+```js
+class NDJSONEncode extends Minipass {
+ write (obj, cb) {
+ try {
+ // JSON.stringify can throw, emit an error on that
+ return super.write(JSON.stringify(obj) + '\n', 'utf8', cb)
+ } catch (er) {
+ this.emit('error', er)
+ }
+ }
+ end (obj, cb) {
+ if (typeof obj === 'function') {
+ cb = obj
+ obj = undefined
+ }
+ if (obj !== undefined) {
+ this.write(obj)
+ }
+ return super.end(cb)
+ }
+}
+```
+
+### transform that parses newline-delimited JSON
+
+```js
+class NDJSONDecode extends Minipass {
+ constructor (options) {
+ // always be in object mode, as far as Minipass is concerned
+ super({ objectMode: true })
+ this._jsonBuffer = ''
+ }
+ write (chunk, encoding, cb) {
+ if (typeof chunk === 'string' &&
+ typeof encoding === 'string' &&
+ encoding !== 'utf8') {
+ chunk = Buffer.from(chunk, encoding).toString()
+ } else if (Buffer.isBuffer(chunk))
+ chunk = chunk.toString()
+ }
+ if (typeof encoding === 'function') {
+ cb = encoding
+ }
+ const jsonData = (this._jsonBuffer + chunk).split('\n')
+ this._jsonBuffer = jsonData.pop()
+ for (let i = 0; i < jsonData.length; i++) {
+ try {
+ // JSON.parse can throw, emit an error on that
+ super.write(JSON.parse(jsonData[i]))
+ } catch (er) {
+ this.emit('error', er)
+ continue
+ }
+ }
+ if (cb)
+ cb()
+ }
+}
+```
diff --git a/backend/node_modules/minipass/index.js b/backend/node_modules/minipass/index.js
new file mode 100644
index 0000000..ae134a0
--- /dev/null
+++ b/backend/node_modules/minipass/index.js
@@ -0,0 +1,555 @@
+'use strict'
+const proc = typeof process === 'object' && process ? process : {
+ stdout: null,
+ stderr: null,
+}
+const EE = require('events')
+const Stream = require('stream')
+const Yallist = require('yallist')
+const SD = require('string_decoder').StringDecoder
+
+const EOF = Symbol('EOF')
+const MAYBE_EMIT_END = Symbol('maybeEmitEnd')
+const EMITTED_END = Symbol('emittedEnd')
+const EMITTING_END = Symbol('emittingEnd')
+const EMITTED_ERROR = Symbol('emittedError')
+const CLOSED = Symbol('closed')
+const READ = Symbol('read')
+const FLUSH = Symbol('flush')
+const FLUSHCHUNK = Symbol('flushChunk')
+const ENCODING = Symbol('encoding')
+const DECODER = Symbol('decoder')
+const FLOWING = Symbol('flowing')
+const PAUSED = Symbol('paused')
+const RESUME = Symbol('resume')
+const BUFFERLENGTH = Symbol('bufferLength')
+const BUFFERPUSH = Symbol('bufferPush')
+const BUFFERSHIFT = Symbol('bufferShift')
+const OBJECTMODE = Symbol('objectMode')
+const DESTROYED = Symbol('destroyed')
+
+// TODO remove when Node v8 support drops
+const doIter = global._MP_NO_ITERATOR_SYMBOLS_ !== '1'
+const ASYNCITERATOR = doIter && Symbol.asyncIterator
+ || Symbol('asyncIterator not implemented')
+const ITERATOR = doIter && Symbol.iterator
+ || Symbol('iterator not implemented')
+
+// events that mean 'the stream is over'
+// these are treated specially, and re-emitted
+// if they are listened for after emitting.
+const isEndish = ev =>
+ ev === 'end' ||
+ ev === 'finish' ||
+ ev === 'prefinish'
+
+const isArrayBuffer = b => b instanceof ArrayBuffer ||
+ typeof b === 'object' &&
+ b.constructor &&
+ b.constructor.name === 'ArrayBuffer' &&
+ b.byteLength >= 0
+
+const isArrayBufferView = b => !Buffer.isBuffer(b) && ArrayBuffer.isView(b)
+
+module.exports = class Minipass extends Stream {
+ constructor (options) {
+ super()
+ this[FLOWING] = false
+ // whether we're explicitly paused
+ this[PAUSED] = false
+ this.pipes = new Yallist()
+ this.buffer = new Yallist()
+ this[OBJECTMODE] = options && options.objectMode || false
+ if (this[OBJECTMODE])
+ this[ENCODING] = null
+ else
+ this[ENCODING] = options && options.encoding || null
+ if (this[ENCODING] === 'buffer')
+ this[ENCODING] = null
+ this[DECODER] = this[ENCODING] ? new SD(this[ENCODING]) : null
+ this[EOF] = false
+ this[EMITTED_END] = false
+ this[EMITTING_END] = false
+ this[CLOSED] = false
+ this[EMITTED_ERROR] = null
+ this.writable = true
+ this.readable = true
+ this[BUFFERLENGTH] = 0
+ this[DESTROYED] = false
+ }
+
+ get bufferLength () { return this[BUFFERLENGTH] }
+
+ get encoding () { return this[ENCODING] }
+ set encoding (enc) {
+ if (this[OBJECTMODE])
+ throw new Error('cannot set encoding in objectMode')
+
+ if (this[ENCODING] && enc !== this[ENCODING] &&
+ (this[DECODER] && this[DECODER].lastNeed || this[BUFFERLENGTH]))
+ throw new Error('cannot change encoding')
+
+ if (this[ENCODING] !== enc) {
+ this[DECODER] = enc ? new SD(enc) : null
+ if (this.buffer.length)
+ this.buffer = this.buffer.map(chunk => this[DECODER].write(chunk))
+ }
+
+ this[ENCODING] = enc
+ }
+
+ setEncoding (enc) {
+ this.encoding = enc
+ }
+
+ get objectMode () { return this[OBJECTMODE] }
+ set objectMode (om) { this[OBJECTMODE] = this[OBJECTMODE] || !!om }
+
+ write (chunk, encoding, cb) {
+ if (this[EOF])
+ throw new Error('write after end')
+
+ if (this[DESTROYED]) {
+ this.emit('error', Object.assign(
+ new Error('Cannot call write after a stream was destroyed'),
+ { code: 'ERR_STREAM_DESTROYED' }
+ ))
+ return true
+ }
+
+ if (typeof encoding === 'function')
+ cb = encoding, encoding = 'utf8'
+
+ if (!encoding)
+ encoding = 'utf8'
+
+ // convert array buffers and typed array views into buffers
+ // at some point in the future, we may want to do the opposite!
+ // leave strings and buffers as-is
+ // anything else switches us into object mode
+ if (!this[OBJECTMODE] && !Buffer.isBuffer(chunk)) {
+ if (isArrayBufferView(chunk))
+ chunk = Buffer.from(chunk.buffer, chunk.byteOffset, chunk.byteLength)
+ else if (isArrayBuffer(chunk))
+ chunk = Buffer.from(chunk)
+ else if (typeof chunk !== 'string')
+ // use the setter so we throw if we have encoding set
+ this.objectMode = true
+ }
+
+ // this ensures at this point that the chunk is a buffer or string
+ // don't buffer it up or send it to the decoder
+ if (!this.objectMode && !chunk.length) {
+ if (this[BUFFERLENGTH] !== 0)
+ this.emit('readable')
+ if (cb)
+ cb()
+ return this.flowing
+ }
+
+ // fast-path writing strings of same encoding to a stream with
+ // an empty buffer, skipping the buffer/decoder dance
+ if (typeof chunk === 'string' && !this[OBJECTMODE] &&
+ // unless it is a string already ready for us to use
+ !(encoding === this[ENCODING] && !this[DECODER].lastNeed)) {
+ chunk = Buffer.from(chunk, encoding)
+ }
+
+ if (Buffer.isBuffer(chunk) && this[ENCODING])
+ chunk = this[DECODER].write(chunk)
+
+ if (this.flowing) {
+ // if we somehow have something in the buffer, but we think we're
+ // flowing, then we need to flush all that out first, or we get
+ // chunks coming in out of order. Can't emit 'drain' here though,
+ // because we're mid-write, so that'd be bad.
+ if (this[BUFFERLENGTH] !== 0)
+ this[FLUSH](true)
+ this.emit('data', chunk)
+ } else
+ this[BUFFERPUSH](chunk)
+
+ if (this[BUFFERLENGTH] !== 0)
+ this.emit('readable')
+
+ if (cb)
+ cb()
+
+ return this.flowing
+ }
+
+ read (n) {
+ if (this[DESTROYED])
+ return null
+
+ try {
+ if (this[BUFFERLENGTH] === 0 || n === 0 || n > this[BUFFERLENGTH])
+ return null
+
+ if (this[OBJECTMODE])
+ n = null
+
+ if (this.buffer.length > 1 && !this[OBJECTMODE]) {
+ if (this.encoding)
+ this.buffer = new Yallist([
+ Array.from(this.buffer).join('')
+ ])
+ else
+ this.buffer = new Yallist([
+ Buffer.concat(Array.from(this.buffer), this[BUFFERLENGTH])
+ ])
+ }
+
+ return this[READ](n || null, this.buffer.head.value)
+ } finally {
+ this[MAYBE_EMIT_END]()
+ }
+ }
+
+ [READ] (n, chunk) {
+ if (n === chunk.length || n === null)
+ this[BUFFERSHIFT]()
+ else {
+ this.buffer.head.value = chunk.slice(n)
+ chunk = chunk.slice(0, n)
+ this[BUFFERLENGTH] -= n
+ }
+
+ this.emit('data', chunk)
+
+ if (!this.buffer.length && !this[EOF])
+ this.emit('drain')
+
+ return chunk
+ }
+
+ end (chunk, encoding, cb) {
+ if (typeof chunk === 'function')
+ cb = chunk, chunk = null
+ if (typeof encoding === 'function')
+ cb = encoding, encoding = 'utf8'
+ if (chunk)
+ this.write(chunk, encoding)
+ if (cb)
+ this.once('end', cb)
+ this[EOF] = true
+ this.writable = false
+
+ // if we haven't written anything, then go ahead and emit,
+ // even if we're not reading.
+ // we'll re-emit if a new 'end' listener is added anyway.
+ // This makes MP more suitable to write-only use cases.
+ if (this.flowing || !this[PAUSED])
+ this[MAYBE_EMIT_END]()
+ return this
+ }
+
+ // don't let the internal resume be overwritten
+ [RESUME] () {
+ if (this[DESTROYED])
+ return
+
+ this[PAUSED] = false
+ this[FLOWING] = true
+ this.emit('resume')
+ if (this.buffer.length)
+ this[FLUSH]()
+ else if (this[EOF])
+ this[MAYBE_EMIT_END]()
+ else
+ this.emit('drain')
+ }
+
+ resume () {
+ return this[RESUME]()
+ }
+
+ pause () {
+ this[FLOWING] = false
+ this[PAUSED] = true
+ }
+
+ get destroyed () {
+ return this[DESTROYED]
+ }
+
+ get flowing () {
+ return this[FLOWING]
+ }
+
+ get paused () {
+ return this[PAUSED]
+ }
+
+ [BUFFERPUSH] (chunk) {
+ if (this[OBJECTMODE])
+ this[BUFFERLENGTH] += 1
+ else
+ this[BUFFERLENGTH] += chunk.length
+ return this.buffer.push(chunk)
+ }
+
+ [BUFFERSHIFT] () {
+ if (this.buffer.length) {
+ if (this[OBJECTMODE])
+ this[BUFFERLENGTH] -= 1
+ else
+ this[BUFFERLENGTH] -= this.buffer.head.value.length
+ }
+ return this.buffer.shift()
+ }
+
+ [FLUSH] (noDrain) {
+ do {} while (this[FLUSHCHUNK](this[BUFFERSHIFT]()))
+
+ if (!noDrain && !this.buffer.length && !this[EOF])
+ this.emit('drain')
+ }
+
+ [FLUSHCHUNK] (chunk) {
+ return chunk ? (this.emit('data', chunk), this.flowing) : false
+ }
+
+ pipe (dest, opts) {
+ if (this[DESTROYED])
+ return
+
+ const ended = this[EMITTED_END]
+ opts = opts || {}
+ if (dest === proc.stdout || dest === proc.stderr)
+ opts.end = false
+ else
+ opts.end = opts.end !== false
+
+ const p = { dest: dest, opts: opts, ondrain: _ => this[RESUME]() }
+ this.pipes.push(p)
+
+ dest.on('drain', p.ondrain)
+ this[RESUME]()
+ // piping an ended stream ends immediately
+ if (ended && p.opts.end)
+ p.dest.end()
+ return dest
+ }
+
+ addListener (ev, fn) {
+ return this.on(ev, fn)
+ }
+
+ on (ev, fn) {
+ try {
+ return super.on(ev, fn)
+ } finally {
+ if (ev === 'data' && !this.pipes.length && !this.flowing)
+ this[RESUME]()
+ else if (isEndish(ev) && this[EMITTED_END]) {
+ super.emit(ev)
+ this.removeAllListeners(ev)
+ } else if (ev === 'error' && this[EMITTED_ERROR]) {
+ fn.call(this, this[EMITTED_ERROR])
+ }
+ }
+ }
+
+ get emittedEnd () {
+ return this[EMITTED_END]
+ }
+
+ [MAYBE_EMIT_END] () {
+ if (!this[EMITTING_END] &&
+ !this[EMITTED_END] &&
+ !this[DESTROYED] &&
+ this.buffer.length === 0 &&
+ this[EOF]) {
+ this[EMITTING_END] = true
+ this.emit('end')
+ this.emit('prefinish')
+ this.emit('finish')
+ if (this[CLOSED])
+ this.emit('close')
+ this[EMITTING_END] = false
+ }
+ }
+
+ emit (ev, data) {
+ // error and close are only events allowed after calling destroy()
+ if (ev !== 'error' && ev !== 'close' && ev !== DESTROYED && this[DESTROYED])
+ return
+ else if (ev === 'data') {
+ if (!data)
+ return
+
+ if (this.pipes.length)
+ this.pipes.forEach(p =>
+ p.dest.write(data) === false && this.pause())
+ } else if (ev === 'end') {
+ // only actual end gets this treatment
+ if (this[EMITTED_END] === true)
+ return
+
+ this[EMITTED_END] = true
+ this.readable = false
+
+ if (this[DECODER]) {
+ data = this[DECODER].end()
+ if (data) {
+ this.pipes.forEach(p => p.dest.write(data))
+ super.emit('data', data)
+ }
+ }
+
+ this.pipes.forEach(p => {
+ p.dest.removeListener('drain', p.ondrain)
+ if (p.opts.end)
+ p.dest.end()
+ })
+ } else if (ev === 'close') {
+ this[CLOSED] = true
+ // don't emit close before 'end' and 'finish'
+ if (!this[EMITTED_END] && !this[DESTROYED])
+ return
+ } else if (ev === 'error') {
+ this[EMITTED_ERROR] = data
+ }
+
+ // TODO: replace with a spread operator when Node v4 support drops
+ const args = new Array(arguments.length)
+ args[0] = ev
+ args[1] = data
+ if (arguments.length > 2) {
+ for (let i = 2; i < arguments.length; i++) {
+ args[i] = arguments[i]
+ }
+ }
+
+ try {
+ return super.emit.apply(this, args)
+ } finally {
+ if (!isEndish(ev))
+ this[MAYBE_EMIT_END]()
+ else
+ this.removeAllListeners(ev)
+ }
+ }
+
+ // const all = await stream.collect()
+ collect () {
+ const buf = []
+ if (!this[OBJECTMODE])
+ buf.dataLength = 0
+ // set the promise first, in case an error is raised
+ // by triggering the flow here.
+ const p = this.promise()
+ this.on('data', c => {
+ buf.push(c)
+ if (!this[OBJECTMODE])
+ buf.dataLength += c.length
+ })
+ return p.then(() => buf)
+ }
+
+ // const data = await stream.concat()
+ concat () {
+ return this[OBJECTMODE]
+ ? Promise.reject(new Error('cannot concat in objectMode'))
+ : this.collect().then(buf =>
+ this[OBJECTMODE]
+ ? Promise.reject(new Error('cannot concat in objectMode'))
+ : this[ENCODING] ? buf.join('') : Buffer.concat(buf, buf.dataLength))
+ }
+
+ // stream.promise().then(() => done, er => emitted error)
+ promise () {
+ return new Promise((resolve, reject) => {
+ this.on(DESTROYED, () => reject(new Error('stream destroyed')))
+ this.on('error', er => reject(er))
+ this.on('end', () => resolve())
+ })
+ }
+
+ // for await (let chunk of stream)
+ [ASYNCITERATOR] () {
+ const next = () => {
+ const res = this.read()
+ if (res !== null)
+ return Promise.resolve({ done: false, value: res })
+
+ if (this[EOF])
+ return Promise.resolve({ done: true })
+
+ let resolve = null
+ let reject = null
+ const onerr = er => {
+ this.removeListener('data', ondata)
+ this.removeListener('end', onend)
+ reject(er)
+ }
+ const ondata = value => {
+ this.removeListener('error', onerr)
+ this.removeListener('end', onend)
+ this.pause()
+ resolve({ value: value, done: !!this[EOF] })
+ }
+ const onend = () => {
+ this.removeListener('error', onerr)
+ this.removeListener('data', ondata)
+ resolve({ done: true })
+ }
+ const ondestroy = () => onerr(new Error('stream destroyed'))
+ return new Promise((res, rej) => {
+ reject = rej
+ resolve = res
+ this.once(DESTROYED, ondestroy)
+ this.once('error', onerr)
+ this.once('end', onend)
+ this.once('data', ondata)
+ })
+ }
+
+ return { next }
+ }
+
+ // for (let chunk of stream)
+ [ITERATOR] () {
+ const next = () => {
+ const value = this.read()
+ const done = value === null
+ return { value, done }
+ }
+ return { next }
+ }
+
+ destroy (er) {
+ if (this[DESTROYED]) {
+ if (er)
+ this.emit('error', er)
+ else
+ this.emit(DESTROYED)
+ return this
+ }
+
+ this[DESTROYED] = true
+
+ // throw away all buffered data, it's never coming out
+ this.buffer = new Yallist()
+ this[BUFFERLENGTH] = 0
+
+ if (typeof this.close === 'function' && !this[CLOSED])
+ this.close()
+
+ if (er)
+ this.emit('error', er)
+ else // if no error to emit, still reject pending promises
+ this.emit(DESTROYED)
+
+ return this
+ }
+
+ static isStream (s) {
+ return !!s && (s instanceof Minipass || s instanceof Stream ||
+ s instanceof EE && (
+ typeof s.pipe === 'function' || // readable
+ (typeof s.write === 'function' && typeof s.end === 'function') // writable
+ ))
+ }
+}
diff --git a/backend/node_modules/minipass/package.json b/backend/node_modules/minipass/package.json
new file mode 100644
index 0000000..eb8a1d0
--- /dev/null
+++ b/backend/node_modules/minipass/package.json
@@ -0,0 +1,74 @@
+{
+ "_from": "minipass@^3.0.0",
+ "_id": "minipass@3.1.5",
+ "_inBundle": false,
+ "_integrity": "sha512-+8NzxD82XQoNKNrl1d/FSi+X8wAEWR+sbYAfIvub4Nz0d22plFG72CEVVaufV8PNf4qSslFTD8VMOxNVhHCjTw==",
+ "_location": "/minipass",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "minipass@^3.0.0",
+ "name": "minipass",
+ "escapedName": "minipass",
+ "rawSpec": "^3.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^3.0.0"
+ },
+ "_requiredBy": [
+ "/fs-minipass",
+ "/minizlib",
+ "/tar"
+ ],
+ "_resolved": "https://registry.npmjs.org/minipass/-/minipass-3.1.5.tgz",
+ "_shasum": "71f6251b0a33a49c01b3cf97ff77eda030dff732",
+ "_spec": "minipass@^3.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/tar",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bugs": {
+ "url": "https://github.com/isaacs/minipass/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "yallist": "^4.0.0"
+ },
+ "deprecated": false,
+ "description": "minimal implementation of a PassThrough stream",
+ "devDependencies": {
+ "end-of-stream": "^1.4.0",
+ "tap": "^15.0.9",
+ "through2": "^2.0.3"
+ },
+ "engines": {
+ "node": ">=8"
+ },
+ "files": [
+ "index.js"
+ ],
+ "homepage": "https://github.com/isaacs/minipass#readme",
+ "keywords": [
+ "passthrough",
+ "stream"
+ ],
+ "license": "ISC",
+ "main": "index.js",
+ "name": "minipass",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/isaacs/minipass.git"
+ },
+ "scripts": {
+ "postpublish": "git push origin --follow-tags",
+ "postversion": "npm publish --tag=next",
+ "preversion": "npm test",
+ "test": "tap"
+ },
+ "tap": {
+ "check-coverage": true
+ },
+ "version": "3.1.5"
+}
diff --git a/backend/node_modules/minizlib/LICENSE b/backend/node_modules/minizlib/LICENSE
new file mode 100644
index 0000000..ffce738
--- /dev/null
+++ b/backend/node_modules/minizlib/LICENSE
@@ -0,0 +1,26 @@
+Minizlib was created by Isaac Z. Schlueter.
+It is a derivative work of the Node.js project.
+
+"""
+Copyright Isaac Z. Schlueter and Contributors
+Copyright Node.js contributors. All rights reserved.
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+"""
diff --git a/backend/node_modules/minizlib/README.md b/backend/node_modules/minizlib/README.md
new file mode 100644
index 0000000..80e067a
--- /dev/null
+++ b/backend/node_modules/minizlib/README.md
@@ -0,0 +1,60 @@
+# minizlib
+
+A fast zlib stream built on [minipass](http://npm.im/minipass) and
+Node.js's zlib binding.
+
+This module was created to serve the needs of
+[node-tar](http://npm.im/tar) and
+[minipass-fetch](http://npm.im/minipass-fetch).
+
+Brotli is supported in versions of node with a Brotli binding.
+
+## How does this differ from the streams in `require('zlib')`?
+
+First, there are no convenience methods to compress or decompress a
+buffer. If you want those, use the built-in `zlib` module. This is
+only streams. That being said, Minipass streams to make it fairly easy to
+use as one-liners: `new zlib.Deflate().end(data).read()` will return the
+deflate compressed result.
+
+This module compresses and decompresses the data as fast as you feed
+it in. It is synchronous, and runs on the main process thread. Zlib
+and Brotli operations can be high CPU, but they're very fast, and doing it
+this way means much less bookkeeping and artificial deferral.
+
+Node's built in zlib streams are built on top of `stream.Transform`.
+They do the maximally safe thing with respect to consistent
+asynchrony, buffering, and backpressure.
+
+See [Minipass](http://npm.im/minipass) for more on the differences between
+Node.js core streams and Minipass streams, and the convenience methods
+provided by that class.
+
+## Classes
+
+- Deflate
+- Inflate
+- Gzip
+- Gunzip
+- DeflateRaw
+- InflateRaw
+- Unzip
+- BrotliCompress (Node v10 and higher)
+- BrotliDecompress (Node v10 and higher)
+
+## USAGE
+
+```js
+const zlib = require('minizlib')
+const input = sourceOfCompressedData()
+const decode = new zlib.BrotliDecompress()
+const output = whereToWriteTheDecodedData()
+input.pipe(decode).pipe(output)
+```
+
+## REPRODUCIBLE BUILDS
+
+To create reproducible gzip compressed files across different operating
+systems, set `portable: true` in the options. This causes minizlib to set
+the `OS` indicator in byte 9 of the extended gzip header to `0xFF` for
+'unknown'.
diff --git a/backend/node_modules/minizlib/constants.js b/backend/node_modules/minizlib/constants.js
new file mode 100644
index 0000000..641ebc7
--- /dev/null
+++ b/backend/node_modules/minizlib/constants.js
@@ -0,0 +1,115 @@
+// Update with any zlib constants that are added or changed in the future.
+// Node v6 didn't export this, so we just hard code the version and rely
+// on all the other hard-coded values from zlib v4736. When node v6
+// support drops, we can just export the realZlibConstants object.
+const realZlibConstants = require('zlib').constants ||
+ /* istanbul ignore next */ { ZLIB_VERNUM: 4736 }
+
+module.exports = Object.freeze(Object.assign(Object.create(null), {
+ Z_NO_FLUSH: 0,
+ Z_PARTIAL_FLUSH: 1,
+ Z_SYNC_FLUSH: 2,
+ Z_FULL_FLUSH: 3,
+ Z_FINISH: 4,
+ Z_BLOCK: 5,
+ Z_OK: 0,
+ Z_STREAM_END: 1,
+ Z_NEED_DICT: 2,
+ Z_ERRNO: -1,
+ Z_STREAM_ERROR: -2,
+ Z_DATA_ERROR: -3,
+ Z_MEM_ERROR: -4,
+ Z_BUF_ERROR: -5,
+ Z_VERSION_ERROR: -6,
+ Z_NO_COMPRESSION: 0,
+ Z_BEST_SPEED: 1,
+ Z_BEST_COMPRESSION: 9,
+ Z_DEFAULT_COMPRESSION: -1,
+ Z_FILTERED: 1,
+ Z_HUFFMAN_ONLY: 2,
+ Z_RLE: 3,
+ Z_FIXED: 4,
+ Z_DEFAULT_STRATEGY: 0,
+ DEFLATE: 1,
+ INFLATE: 2,
+ GZIP: 3,
+ GUNZIP: 4,
+ DEFLATERAW: 5,
+ INFLATERAW: 6,
+ UNZIP: 7,
+ BROTLI_DECODE: 8,
+ BROTLI_ENCODE: 9,
+ Z_MIN_WINDOWBITS: 8,
+ Z_MAX_WINDOWBITS: 15,
+ Z_DEFAULT_WINDOWBITS: 15,
+ Z_MIN_CHUNK: 64,
+ Z_MAX_CHUNK: Infinity,
+ Z_DEFAULT_CHUNK: 16384,
+ Z_MIN_MEMLEVEL: 1,
+ Z_MAX_MEMLEVEL: 9,
+ Z_DEFAULT_MEMLEVEL: 8,
+ Z_MIN_LEVEL: -1,
+ Z_MAX_LEVEL: 9,
+ Z_DEFAULT_LEVEL: -1,
+ BROTLI_OPERATION_PROCESS: 0,
+ BROTLI_OPERATION_FLUSH: 1,
+ BROTLI_OPERATION_FINISH: 2,
+ BROTLI_OPERATION_EMIT_METADATA: 3,
+ BROTLI_MODE_GENERIC: 0,
+ BROTLI_MODE_TEXT: 1,
+ BROTLI_MODE_FONT: 2,
+ BROTLI_DEFAULT_MODE: 0,
+ BROTLI_MIN_QUALITY: 0,
+ BROTLI_MAX_QUALITY: 11,
+ BROTLI_DEFAULT_QUALITY: 11,
+ BROTLI_MIN_WINDOW_BITS: 10,
+ BROTLI_MAX_WINDOW_BITS: 24,
+ BROTLI_LARGE_MAX_WINDOW_BITS: 30,
+ BROTLI_DEFAULT_WINDOW: 22,
+ BROTLI_MIN_INPUT_BLOCK_BITS: 16,
+ BROTLI_MAX_INPUT_BLOCK_BITS: 24,
+ BROTLI_PARAM_MODE: 0,
+ BROTLI_PARAM_QUALITY: 1,
+ BROTLI_PARAM_LGWIN: 2,
+ BROTLI_PARAM_LGBLOCK: 3,
+ BROTLI_PARAM_DISABLE_LITERAL_CONTEXT_MODELING: 4,
+ BROTLI_PARAM_SIZE_HINT: 5,
+ BROTLI_PARAM_LARGE_WINDOW: 6,
+ BROTLI_PARAM_NPOSTFIX: 7,
+ BROTLI_PARAM_NDIRECT: 8,
+ BROTLI_DECODER_RESULT_ERROR: 0,
+ BROTLI_DECODER_RESULT_SUCCESS: 1,
+ BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT: 2,
+ BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT: 3,
+ BROTLI_DECODER_PARAM_DISABLE_RING_BUFFER_REALLOCATION: 0,
+ BROTLI_DECODER_PARAM_LARGE_WINDOW: 1,
+ BROTLI_DECODER_NO_ERROR: 0,
+ BROTLI_DECODER_SUCCESS: 1,
+ BROTLI_DECODER_NEEDS_MORE_INPUT: 2,
+ BROTLI_DECODER_NEEDS_MORE_OUTPUT: 3,
+ BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_NIBBLE: -1,
+ BROTLI_DECODER_ERROR_FORMAT_RESERVED: -2,
+ BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_META_NIBBLE: -3,
+ BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_ALPHABET: -4,
+ BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_SAME: -5,
+ BROTLI_DECODER_ERROR_FORMAT_CL_SPACE: -6,
+ BROTLI_DECODER_ERROR_FORMAT_HUFFMAN_SPACE: -7,
+ BROTLI_DECODER_ERROR_FORMAT_CONTEXT_MAP_REPEAT: -8,
+ BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_1: -9,
+ BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_2: -10,
+ BROTLI_DECODER_ERROR_FORMAT_TRANSFORM: -11,
+ BROTLI_DECODER_ERROR_FORMAT_DICTIONARY: -12,
+ BROTLI_DECODER_ERROR_FORMAT_WINDOW_BITS: -13,
+ BROTLI_DECODER_ERROR_FORMAT_PADDING_1: -14,
+ BROTLI_DECODER_ERROR_FORMAT_PADDING_2: -15,
+ BROTLI_DECODER_ERROR_FORMAT_DISTANCE: -16,
+ BROTLI_DECODER_ERROR_DICTIONARY_NOT_SET: -19,
+ BROTLI_DECODER_ERROR_INVALID_ARGUMENTS: -20,
+ BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MODES: -21,
+ BROTLI_DECODER_ERROR_ALLOC_TREE_GROUPS: -22,
+ BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MAP: -25,
+ BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_1: -26,
+ BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_2: -27,
+ BROTLI_DECODER_ERROR_ALLOC_BLOCK_TYPE_TREES: -30,
+ BROTLI_DECODER_ERROR_UNREACHABLE: -31,
+}, realZlibConstants))
diff --git a/backend/node_modules/minizlib/index.js b/backend/node_modules/minizlib/index.js
new file mode 100644
index 0000000..fbaf69e
--- /dev/null
+++ b/backend/node_modules/minizlib/index.js
@@ -0,0 +1,348 @@
+'use strict'
+
+const assert = require('assert')
+const Buffer = require('buffer').Buffer
+const realZlib = require('zlib')
+
+const constants = exports.constants = require('./constants.js')
+const Minipass = require('minipass')
+
+const OriginalBufferConcat = Buffer.concat
+
+const _superWrite = Symbol('_superWrite')
+class ZlibError extends Error {
+ constructor (err) {
+ super('zlib: ' + err.message)
+ this.code = err.code
+ this.errno = err.errno
+ /* istanbul ignore if */
+ if (!this.code)
+ this.code = 'ZLIB_ERROR'
+
+ this.message = 'zlib: ' + err.message
+ Error.captureStackTrace(this, this.constructor)
+ }
+
+ get name () {
+ return 'ZlibError'
+ }
+}
+
+// the Zlib class they all inherit from
+// This thing manages the queue of requests, and returns
+// true or false if there is anything in the queue when
+// you call the .write() method.
+const _opts = Symbol('opts')
+const _flushFlag = Symbol('flushFlag')
+const _finishFlushFlag = Symbol('finishFlushFlag')
+const _fullFlushFlag = Symbol('fullFlushFlag')
+const _handle = Symbol('handle')
+const _onError = Symbol('onError')
+const _sawError = Symbol('sawError')
+const _level = Symbol('level')
+const _strategy = Symbol('strategy')
+const _ended = Symbol('ended')
+const _defaultFullFlush = Symbol('_defaultFullFlush')
+
+class ZlibBase extends Minipass {
+ constructor (opts, mode) {
+ if (!opts || typeof opts !== 'object')
+ throw new TypeError('invalid options for ZlibBase constructor')
+
+ super(opts)
+ this[_sawError] = false
+ this[_ended] = false
+ this[_opts] = opts
+
+ this[_flushFlag] = opts.flush
+ this[_finishFlushFlag] = opts.finishFlush
+ // this will throw if any options are invalid for the class selected
+ try {
+ this[_handle] = new realZlib[mode](opts)
+ } catch (er) {
+ // make sure that all errors get decorated properly
+ throw new ZlibError(er)
+ }
+
+ this[_onError] = (err) => {
+ // no sense raising multiple errors, since we abort on the first one.
+ if (this[_sawError])
+ return
+
+ this[_sawError] = true
+
+ // there is no way to cleanly recover.
+ // continuing only obscures problems.
+ this.close()
+ this.emit('error', err)
+ }
+
+ this[_handle].on('error', er => this[_onError](new ZlibError(er)))
+ this.once('end', () => this.close)
+ }
+
+ close () {
+ if (this[_handle]) {
+ this[_handle].close()
+ this[_handle] = null
+ this.emit('close')
+ }
+ }
+
+ reset () {
+ if (!this[_sawError]) {
+ assert(this[_handle], 'zlib binding closed')
+ return this[_handle].reset()
+ }
+ }
+
+ flush (flushFlag) {
+ if (this.ended)
+ return
+
+ if (typeof flushFlag !== 'number')
+ flushFlag = this[_fullFlushFlag]
+ this.write(Object.assign(Buffer.alloc(0), { [_flushFlag]: flushFlag }))
+ }
+
+ end (chunk, encoding, cb) {
+ if (chunk)
+ this.write(chunk, encoding)
+ this.flush(this[_finishFlushFlag])
+ this[_ended] = true
+ return super.end(null, null, cb)
+ }
+
+ get ended () {
+ return this[_ended]
+ }
+
+ write (chunk, encoding, cb) {
+ // process the chunk using the sync process
+ // then super.write() all the outputted chunks
+ if (typeof encoding === 'function')
+ cb = encoding, encoding = 'utf8'
+
+ if (typeof chunk === 'string')
+ chunk = Buffer.from(chunk, encoding)
+
+ if (this[_sawError])
+ return
+ assert(this[_handle], 'zlib binding closed')
+
+ // _processChunk tries to .close() the native handle after it's done, so we
+ // intercept that by temporarily making it a no-op.
+ const nativeHandle = this[_handle]._handle
+ const originalNativeClose = nativeHandle.close
+ nativeHandle.close = () => {}
+ const originalClose = this[_handle].close
+ this[_handle].close = () => {}
+ // It also calls `Buffer.concat()` at the end, which may be convenient
+ // for some, but which we are not interested in as it slows us down.
+ Buffer.concat = (args) => args
+ let result
+ try {
+ const flushFlag = typeof chunk[_flushFlag] === 'number'
+ ? chunk[_flushFlag] : this[_flushFlag]
+ result = this[_handle]._processChunk(chunk, flushFlag)
+ // if we don't throw, reset it back how it was
+ Buffer.concat = OriginalBufferConcat
+ } catch (err) {
+ // or if we do, put Buffer.concat() back before we emit error
+ // Error events call into user code, which may call Buffer.concat()
+ Buffer.concat = OriginalBufferConcat
+ this[_onError](new ZlibError(err))
+ } finally {
+ if (this[_handle]) {
+ // Core zlib resets `_handle` to null after attempting to close the
+ // native handle. Our no-op handler prevented actual closure, but we
+ // need to restore the `._handle` property.
+ this[_handle]._handle = nativeHandle
+ nativeHandle.close = originalNativeClose
+ this[_handle].close = originalClose
+ // `_processChunk()` adds an 'error' listener. If we don't remove it
+ // after each call, these handlers start piling up.
+ this[_handle].removeAllListeners('error')
+ // make sure OUR error listener is still attached tho
+ }
+ }
+
+ if (this[_handle])
+ this[_handle].on('error', er => this[_onError](new ZlibError(er)))
+
+ let writeReturn
+ if (result) {
+ if (Array.isArray(result) && result.length > 0) {
+ // The first buffer is always `handle._outBuffer`, which would be
+ // re-used for later invocations; so, we always have to copy that one.
+ writeReturn = this[_superWrite](Buffer.from(result[0]))
+ for (let i = 1; i < result.length; i++) {
+ writeReturn = this[_superWrite](result[i])
+ }
+ } else {
+ writeReturn = this[_superWrite](Buffer.from(result))
+ }
+ }
+
+ if (cb)
+ cb()
+ return writeReturn
+ }
+
+ [_superWrite] (data) {
+ return super.write(data)
+ }
+}
+
+class Zlib extends ZlibBase {
+ constructor (opts, mode) {
+ opts = opts || {}
+
+ opts.flush = opts.flush || constants.Z_NO_FLUSH
+ opts.finishFlush = opts.finishFlush || constants.Z_FINISH
+ super(opts, mode)
+
+ this[_fullFlushFlag] = constants.Z_FULL_FLUSH
+ this[_level] = opts.level
+ this[_strategy] = opts.strategy
+ }
+
+ params (level, strategy) {
+ if (this[_sawError])
+ return
+
+ if (!this[_handle])
+ throw new Error('cannot switch params when binding is closed')
+
+ // no way to test this without also not supporting params at all
+ /* istanbul ignore if */
+ if (!this[_handle].params)
+ throw new Error('not supported in this implementation')
+
+ if (this[_level] !== level || this[_strategy] !== strategy) {
+ this.flush(constants.Z_SYNC_FLUSH)
+ assert(this[_handle], 'zlib binding closed')
+ // .params() calls .flush(), but the latter is always async in the
+ // core zlib. We override .flush() temporarily to intercept that and
+ // flush synchronously.
+ const origFlush = this[_handle].flush
+ this[_handle].flush = (flushFlag, cb) => {
+ this.flush(flushFlag)
+ cb()
+ }
+ try {
+ this[_handle].params(level, strategy)
+ } finally {
+ this[_handle].flush = origFlush
+ }
+ /* istanbul ignore else */
+ if (this[_handle]) {
+ this[_level] = level
+ this[_strategy] = strategy
+ }
+ }
+ }
+}
+
+// minimal 2-byte header
+class Deflate extends Zlib {
+ constructor (opts) {
+ super(opts, 'Deflate')
+ }
+}
+
+class Inflate extends Zlib {
+ constructor (opts) {
+ super(opts, 'Inflate')
+ }
+}
+
+// gzip - bigger header, same deflate compression
+const _portable = Symbol('_portable')
+class Gzip extends Zlib {
+ constructor (opts) {
+ super(opts, 'Gzip')
+ this[_portable] = opts && !!opts.portable
+ }
+
+ [_superWrite] (data) {
+ if (!this[_portable])
+ return super[_superWrite](data)
+
+ // we'll always get the header emitted in one first chunk
+ // overwrite the OS indicator byte with 0xFF
+ this[_portable] = false
+ data[9] = 255
+ return super[_superWrite](data)
+ }
+}
+
+class Gunzip extends Zlib {
+ constructor (opts) {
+ super(opts, 'Gunzip')
+ }
+}
+
+// raw - no header
+class DeflateRaw extends Zlib {
+ constructor (opts) {
+ super(opts, 'DeflateRaw')
+ }
+}
+
+class InflateRaw extends Zlib {
+ constructor (opts) {
+ super(opts, 'InflateRaw')
+ }
+}
+
+// auto-detect header.
+class Unzip extends Zlib {
+ constructor (opts) {
+ super(opts, 'Unzip')
+ }
+}
+
+class Brotli extends ZlibBase {
+ constructor (opts, mode) {
+ opts = opts || {}
+
+ opts.flush = opts.flush || constants.BROTLI_OPERATION_PROCESS
+ opts.finishFlush = opts.finishFlush || constants.BROTLI_OPERATION_FINISH
+
+ super(opts, mode)
+
+ this[_fullFlushFlag] = constants.BROTLI_OPERATION_FLUSH
+ }
+}
+
+class BrotliCompress extends Brotli {
+ constructor (opts) {
+ super(opts, 'BrotliCompress')
+ }
+}
+
+class BrotliDecompress extends Brotli {
+ constructor (opts) {
+ super(opts, 'BrotliDecompress')
+ }
+}
+
+exports.Deflate = Deflate
+exports.Inflate = Inflate
+exports.Gzip = Gzip
+exports.Gunzip = Gunzip
+exports.DeflateRaw = DeflateRaw
+exports.InflateRaw = InflateRaw
+exports.Unzip = Unzip
+/* istanbul ignore else */
+if (typeof realZlib.BrotliCompress === 'function') {
+ exports.BrotliCompress = BrotliCompress
+ exports.BrotliDecompress = BrotliDecompress
+} else {
+ exports.BrotliCompress = exports.BrotliDecompress = class {
+ constructor () {
+ throw new Error('Brotli is not supported in this version of Node.js')
+ }
+ }
+}
diff --git a/backend/node_modules/minizlib/package.json b/backend/node_modules/minizlib/package.json
new file mode 100644
index 0000000..ae388f9
--- /dev/null
+++ b/backend/node_modules/minizlib/package.json
@@ -0,0 +1,75 @@
+{
+ "_from": "minizlib@^2.1.1",
+ "_id": "minizlib@2.1.2",
+ "_inBundle": false,
+ "_integrity": "sha512-bAxsR8BVfj60DWXHE3u30oHzfl4G7khkSuPW+qvpd7jFRHm7dLxOjUk1EHACJ/hxLY8phGJ0YhYHZo7jil7Qdg==",
+ "_location": "/minizlib",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "minizlib@^2.1.1",
+ "name": "minizlib",
+ "escapedName": "minizlib",
+ "rawSpec": "^2.1.1",
+ "saveSpec": null,
+ "fetchSpec": "^2.1.1"
+ },
+ "_requiredBy": [
+ "/tar"
+ ],
+ "_resolved": "https://registry.npmjs.org/minizlib/-/minizlib-2.1.2.tgz",
+ "_shasum": "e90d3466ba209b932451508a11ce3d3632145931",
+ "_spec": "minizlib@^2.1.1",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/tar",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bugs": {
+ "url": "https://github.com/isaacs/minizlib/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "minipass": "^3.0.0",
+ "yallist": "^4.0.0"
+ },
+ "deprecated": false,
+ "description": "A small fast zlib stream built on [minipass](http://npm.im/minipass) and Node.js's zlib binding.",
+ "devDependencies": {
+ "tap": "^14.6.9"
+ },
+ "engines": {
+ "node": ">= 8"
+ },
+ "files": [
+ "index.js",
+ "constants.js"
+ ],
+ "homepage": "https://github.com/isaacs/minizlib#readme",
+ "keywords": [
+ "zlib",
+ "gzip",
+ "gunzip",
+ "deflate",
+ "inflate",
+ "compression",
+ "zip",
+ "unzip"
+ ],
+ "license": "MIT",
+ "main": "index.js",
+ "name": "minizlib",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/isaacs/minizlib.git"
+ },
+ "scripts": {
+ "postpublish": "git push origin --all; git push origin --tags",
+ "postversion": "npm publish",
+ "preversion": "npm test",
+ "test": "tap test/*.js --100 -J"
+ },
+ "version": "2.1.2"
+}
diff --git a/backend/node_modules/mkdirp/CHANGELOG.md b/backend/node_modules/mkdirp/CHANGELOG.md
new file mode 100644
index 0000000..8145838
--- /dev/null
+++ b/backend/node_modules/mkdirp/CHANGELOG.md
@@ -0,0 +1,15 @@
+# Changers Lorgs!
+
+## 1.0
+
+Full rewrite. Essentially a brand new module.
+
+- Return a promise instead of taking a callback.
+- Use native `fs.mkdir(path, { recursive: true })` when available.
+- Drop support for outdated Node.js versions. (Technically still works on
+ Node.js v8, but only 10 and above are officially supported.)
+
+## 0.x
+
+Original and most widely used recursive directory creation implementation
+in JavaScript, dating back to 2010.
diff --git a/backend/node_modules/mkdirp/LICENSE b/backend/node_modules/mkdirp/LICENSE
new file mode 100644
index 0000000..13fcd15
--- /dev/null
+++ b/backend/node_modules/mkdirp/LICENSE
@@ -0,0 +1,21 @@
+Copyright James Halliday (mail@substack.net) and Isaac Z. Schlueter (i@izs.me)
+
+This project is free software released under the MIT license:
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/mkdirp/bin/cmd.js b/backend/node_modules/mkdirp/bin/cmd.js
new file mode 100755
index 0000000..6e0aa8d
--- /dev/null
+++ b/backend/node_modules/mkdirp/bin/cmd.js
@@ -0,0 +1,68 @@
+#!/usr/bin/env node
+
+const usage = () => `
+usage: mkdirp [DIR1,DIR2..] {OPTIONS}
+
+ Create each supplied directory including any necessary parent directories
+ that don't yet exist.
+
+ If the directory already exists, do nothing.
+
+OPTIONS are:
+
+ -m<mode> If a directory needs to be created, set the mode as an octal
+ --mode=<mode> permission string.
+
+ -v --version Print the mkdirp version number
+
+ -h --help Print this helpful banner
+
+ -p --print Print the first directories created for each path provided
+
+ --manual Use manual implementation, even if native is available
+`
+
+const dirs = []
+const opts = {}
+let print = false
+let dashdash = false
+let manual = false
+for (const arg of process.argv.slice(2)) {
+ if (dashdash)
+ dirs.push(arg)
+ else if (arg === '--')
+ dashdash = true
+ else if (arg === '--manual')
+ manual = true
+ else if (/^-h/.test(arg) || /^--help/.test(arg)) {
+ console.log(usage())
+ process.exit(0)
+ } else if (arg === '-v' || arg === '--version') {
+ console.log(require('../package.json').version)
+ process.exit(0)
+ } else if (arg === '-p' || arg === '--print') {
+ print = true
+ } else if (/^-m/.test(arg) || /^--mode=/.test(arg)) {
+ const mode = parseInt(arg.replace(/^(-m|--mode=)/, ''), 8)
+ if (isNaN(mode)) {
+ console.error(`invalid mode argument: ${arg}\nMust be an octal number.`)
+ process.exit(1)
+ }
+ opts.mode = mode
+ } else
+ dirs.push(arg)
+}
+
+const mkdirp = require('../')
+const impl = manual ? mkdirp.manual : mkdirp
+if (dirs.length === 0)
+ console.error(usage())
+
+Promise.all(dirs.map(dir => impl(dir, opts)))
+ .then(made => print ? made.forEach(m => m && console.log(m)) : null)
+ .catch(er => {
+ console.error(er.message)
+ if (er.code)
+ console.error(' code: ' + er.code)
+ process.exit(1)
+ })
diff --git a/backend/node_modules/mkdirp/index.js b/backend/node_modules/mkdirp/index.js
new file mode 100644
index 0000000..ad7a16c
--- /dev/null
+++ b/backend/node_modules/mkdirp/index.js
@@ -0,0 +1,31 @@
+const optsArg = require('./lib/opts-arg.js')
+const pathArg = require('./lib/path-arg.js')
+
+const {mkdirpNative, mkdirpNativeSync} = require('./lib/mkdirp-native.js')
+const {mkdirpManual, mkdirpManualSync} = require('./lib/mkdirp-manual.js')
+const {useNative, useNativeSync} = require('./lib/use-native.js')
+
+
+const mkdirp = (path, opts) => {
+ path = pathArg(path)
+ opts = optsArg(opts)
+ return useNative(opts)
+ ? mkdirpNative(path, opts)
+ : mkdirpManual(path, opts)
+}
+
+const mkdirpSync = (path, opts) => {
+ path = pathArg(path)
+ opts = optsArg(opts)
+ return useNativeSync(opts)
+ ? mkdirpNativeSync(path, opts)
+ : mkdirpManualSync(path, opts)
+}
+
+mkdirp.sync = mkdirpSync
+mkdirp.native = (path, opts) => mkdirpNative(pathArg(path), optsArg(opts))
+mkdirp.manual = (path, opts) => mkdirpManual(pathArg(path), optsArg(opts))
+mkdirp.nativeSync = (path, opts) => mkdirpNativeSync(pathArg(path), optsArg(opts))
+mkdirp.manualSync = (path, opts) => mkdirpManualSync(pathArg(path), optsArg(opts))
+
+module.exports = mkdirp
diff --git a/backend/node_modules/mkdirp/lib/find-made.js b/backend/node_modules/mkdirp/lib/find-made.js
new file mode 100644
index 0000000..022e492
--- /dev/null
+++ b/backend/node_modules/mkdirp/lib/find-made.js
@@ -0,0 +1,29 @@
+const {dirname} = require('path')
+
+const findMade = (opts, parent, path = undefined) => {
+ // we never want the 'made' return value to be a root directory
+ if (path === parent)
+ return Promise.resolve()
+
+ return opts.statAsync(parent).then(
+ st => st.isDirectory() ? path : undefined, // will fail later
+ er => er.code === 'ENOENT'
+ ? findMade(opts, dirname(parent), parent)
+ : undefined
+ )
+}
+
+const findMadeSync = (opts, parent, path = undefined) => {
+ if (path === parent)
+ return undefined
+
+ try {
+ return opts.statSync(parent).isDirectory() ? path : undefined
+ } catch (er) {
+ return er.code === 'ENOENT'
+ ? findMadeSync(opts, dirname(parent), parent)
+ : undefined
+ }
+}
+
+module.exports = {findMade, findMadeSync}
diff --git a/backend/node_modules/mkdirp/lib/mkdirp-manual.js b/backend/node_modules/mkdirp/lib/mkdirp-manual.js
new file mode 100644
index 0000000..2eb18cd
--- /dev/null
+++ b/backend/node_modules/mkdirp/lib/mkdirp-manual.js
@@ -0,0 +1,64 @@
+const {dirname} = require('path')
+
+const mkdirpManual = (path, opts, made) => {
+ opts.recursive = false
+ const parent = dirname(path)
+ if (parent === path) {
+ return opts.mkdirAsync(path, opts).catch(er => {
+ // swallowed by recursive implementation on posix systems
+ // any other error is a failure
+ if (er.code !== 'EISDIR')
+ throw er
+ })
+ }
+
+ return opts.mkdirAsync(path, opts).then(() => made || path, er => {
+ if (er.code === 'ENOENT')
+ return mkdirpManual(parent, opts)
+ .then(made => mkdirpManual(path, opts, made))
+ if (er.code !== 'EEXIST' && er.code !== 'EROFS')
+ throw er
+ return opts.statAsync(path).then(st => {
+ if (st.isDirectory())
+ return made
+ else
+ throw er
+ }, () => { throw er })
+ })
+}
+
+const mkdirpManualSync = (path, opts, made) => {
+ const parent = dirname(path)
+ opts.recursive = false
+
+ if (parent === path) {
+ try {
+ return opts.mkdirSync(path, opts)
+ } catch (er) {
+ // swallowed by recursive implementation on posix systems
+ // any other error is a failure
+ if (er.code !== 'EISDIR')
+ throw er
+ else
+ return
+ }
+ }
+
+ try {
+ opts.mkdirSync(path, opts)
+ return made || path
+ } catch (er) {
+ if (er.code === 'ENOENT')
+ return mkdirpManualSync(path, opts, mkdirpManualSync(parent, opts, made))
+ if (er.code !== 'EEXIST' && er.code !== 'EROFS')
+ throw er
+ try {
+ if (!opts.statSync(path).isDirectory())
+ throw er
+ } catch (_) {
+ throw er
+ }
+ }
+}
+
+module.exports = {mkdirpManual, mkdirpManualSync}
diff --git a/backend/node_modules/mkdirp/lib/mkdirp-native.js b/backend/node_modules/mkdirp/lib/mkdirp-native.js
new file mode 100644
index 0000000..c7a6b69
--- /dev/null
+++ b/backend/node_modules/mkdirp/lib/mkdirp-native.js
@@ -0,0 +1,39 @@
+const {dirname} = require('path')
+const {findMade, findMadeSync} = require('./find-made.js')
+const {mkdirpManual, mkdirpManualSync} = require('./mkdirp-manual.js')
+
+const mkdirpNative = (path, opts) => {
+ opts.recursive = true
+ const parent = dirname(path)
+ if (parent === path)
+ return opts.mkdirAsync(path, opts)
+
+ return findMade(opts, path).then(made =>
+ opts.mkdirAsync(path, opts).then(() => made)
+ .catch(er => {
+ if (er.code === 'ENOENT')
+ return mkdirpManual(path, opts)
+ else
+ throw er
+ }))
+}
+
+const mkdirpNativeSync = (path, opts) => {
+ opts.recursive = true
+ const parent = dirname(path)
+ if (parent === path)
+ return opts.mkdirSync(path, opts)
+
+ const made = findMadeSync(opts, path)
+ try {
+ opts.mkdirSync(path, opts)
+ return made
+ } catch (er) {
+ if (er.code === 'ENOENT')
+ return mkdirpManualSync(path, opts)
+ else
+ throw er
+ }
+}
+
+module.exports = {mkdirpNative, mkdirpNativeSync}
diff --git a/backend/node_modules/mkdirp/lib/opts-arg.js b/backend/node_modules/mkdirp/lib/opts-arg.js
new file mode 100644
index 0000000..2fa4833
--- /dev/null
+++ b/backend/node_modules/mkdirp/lib/opts-arg.js
@@ -0,0 +1,23 @@
+const { promisify } = require('util')
+const fs = require('fs')
+const optsArg = opts => {
+ if (!opts)
+ opts = { mode: 0o777, fs }
+ else if (typeof opts === 'object')
+ opts = { mode: 0o777, fs, ...opts }
+ else if (typeof opts === 'number')
+ opts = { mode: opts, fs }
+ else if (typeof opts === 'string')
+ opts = { mode: parseInt(opts, 8), fs }
+ else
+ throw new TypeError('invalid options argument')
+
+ opts.mkdir = opts.mkdir || opts.fs.mkdir || fs.mkdir
+ opts.mkdirAsync = promisify(opts.mkdir)
+ opts.stat = opts.stat || opts.fs.stat || fs.stat
+ opts.statAsync = promisify(opts.stat)
+ opts.statSync = opts.statSync || opts.fs.statSync || fs.statSync
+ opts.mkdirSync = opts.mkdirSync || opts.fs.mkdirSync || fs.mkdirSync
+ return opts
+}
+module.exports = optsArg
diff --git a/backend/node_modules/mkdirp/lib/path-arg.js b/backend/node_modules/mkdirp/lib/path-arg.js
new file mode 100644
index 0000000..cc07de5
--- /dev/null
+++ b/backend/node_modules/mkdirp/lib/path-arg.js
@@ -0,0 +1,29 @@
+const platform = process.env.__TESTING_MKDIRP_PLATFORM__ || process.platform
+const { resolve, parse } = require('path')
+const pathArg = path => {
+ if (/\0/.test(path)) {
+ // simulate same failure that node raises
+ throw Object.assign(
+ new TypeError('path must be a string without null bytes'),
+ {
+ path,
+ code: 'ERR_INVALID_ARG_VALUE',
+ }
+ )
+ }
+
+ path = resolve(path)
+ if (platform === 'win32') {
+ const badWinChars = /[*|"<>?:]/
+ const {root} = parse(path)
+ if (badWinChars.test(path.substr(root.length))) {
+ throw Object.assign(new Error('Illegal characters in path.'), {
+ path,
+ code: 'EINVAL',
+ })
+ }
+ }
+
+ return path
+}
+module.exports = pathArg
diff --git a/backend/node_modules/mkdirp/lib/use-native.js b/backend/node_modules/mkdirp/lib/use-native.js
new file mode 100644
index 0000000..079361d
--- /dev/null
+++ b/backend/node_modules/mkdirp/lib/use-native.js
@@ -0,0 +1,10 @@
+const fs = require('fs')
+
+const version = process.env.__TESTING_MKDIRP_NODE_VERSION__ || process.version
+const versArr = version.replace(/^v/, '').split('.')
+const hasNative = +versArr[0] > 10 || +versArr[0] === 10 && +versArr[1] >= 12
+
+const useNative = !hasNative ? () => false : opts => opts.mkdir === fs.mkdir
+const useNativeSync = !hasNative ? () => false : opts => opts.mkdirSync === fs.mkdirSync
+
+module.exports = {useNative, useNativeSync}
diff --git a/backend/node_modules/mkdirp/package.json b/backend/node_modules/mkdirp/package.json
new file mode 100644
index 0000000..c5167bd
--- /dev/null
+++ b/backend/node_modules/mkdirp/package.json
@@ -0,0 +1,75 @@
+{
+ "_from": "mkdirp@^1.0.3",
+ "_id": "mkdirp@1.0.4",
+ "_inBundle": false,
+ "_integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==",
+ "_location": "/mkdirp",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "mkdirp@^1.0.3",
+ "name": "mkdirp",
+ "escapedName": "mkdirp",
+ "rawSpec": "^1.0.3",
+ "saveSpec": null,
+ "fetchSpec": "^1.0.3"
+ },
+ "_requiredBy": [
+ "/tar"
+ ],
+ "_resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
+ "_shasum": "3eb5ed62622756d79a5f0e2a221dfebad75c2f7e",
+ "_spec": "mkdirp@^1.0.3",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/tar",
+ "bin": {
+ "mkdirp": "bin/cmd.js"
+ },
+ "bugs": {
+ "url": "https://github.com/isaacs/node-mkdirp/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Recursively mkdir, like `mkdir -p`",
+ "devDependencies": {
+ "require-inject": "^1.4.4",
+ "tap": "^14.10.7"
+ },
+ "engines": {
+ "node": ">=10"
+ },
+ "files": [
+ "bin",
+ "lib",
+ "index.js"
+ ],
+ "homepage": "https://github.com/isaacs/node-mkdirp#readme",
+ "keywords": [
+ "mkdir",
+ "directory",
+ "make dir",
+ "make",
+ "dir",
+ "recursive",
+ "native"
+ ],
+ "license": "MIT",
+ "main": "index.js",
+ "name": "mkdirp",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/isaacs/node-mkdirp.git"
+ },
+ "scripts": {
+ "postpublish": "git push origin --follow-tags",
+ "postversion": "npm publish",
+ "preversion": "npm test",
+ "snap": "tap",
+ "test": "tap"
+ },
+ "tap": {
+ "check-coverage": true,
+ "coverage-map": "map.js"
+ },
+ "version": "1.0.4"
+}
diff --git a/backend/node_modules/mkdirp/readme.markdown b/backend/node_modules/mkdirp/readme.markdown
new file mode 100644
index 0000000..827de59
--- /dev/null
+++ b/backend/node_modules/mkdirp/readme.markdown
@@ -0,0 +1,266 @@
+# mkdirp
+
+Like `mkdir -p`, but in Node.js!
+
+Now with a modern API and no\* bugs!
+
+<small>\* may contain some bugs</small>
+
+# example
+
+## pow.js
+
+```js
+const mkdirp = require('mkdirp')
+
+// return value is a Promise resolving to the first directory created
+mkdirp('/tmp/foo/bar/baz').then(made =>
+ console.log(`made directories, starting with ${made}`))
+```
+
+Output (where `/tmp/foo` already exists)
+
+```
+made directories, starting with /tmp/foo/bar
+```
+
+Or, if you don't have time to wait around for promises:
+
+```js
+const mkdirp = require('mkdirp')
+
+// return value is the first directory created
+const made = mkdirp.sync('/tmp/foo/bar/baz')
+console.log(`made directories, starting with ${made}`)
+```
+
+And now /tmp/foo/bar/baz exists, huzzah!
+
+# methods
+
+```js
+const mkdirp = require('mkdirp')
+```
+
+## mkdirp(dir, [opts]) -> Promise<String | undefined>
+
+Create a new directory and any necessary subdirectories at `dir` with octal
+permission string `opts.mode`. If `opts` is a string or number, it will be
+treated as the `opts.mode`.
+
+If `opts.mode` isn't specified, it defaults to `0o777 &
+(~process.umask())`.
+
+Promise resolves to first directory `made` that had to be created, or
+`undefined` if everything already exists. Promise rejects if any errors
+are encountered. Note that, in the case of promise rejection, some
+directories _may_ have been created, as recursive directory creation is not
+an atomic operation.
+
+You can optionally pass in an alternate `fs` implementation by passing in
+`opts.fs`. Your implementation should have `opts.fs.mkdir(path, opts, cb)`
+and `opts.fs.stat(path, cb)`.
+
+You can also override just one or the other of `mkdir` and `stat` by
+passing in `opts.stat` or `opts.mkdir`, or providing an `fs` option that
+only overrides one of these.
+
+## mkdirp.sync(dir, opts) -> String|null
+
+Synchronously create a new directory and any necessary subdirectories at
+`dir` with octal permission string `opts.mode`. If `opts` is a string or
+number, it will be treated as the `opts.mode`.
+
+If `opts.mode` isn't specified, it defaults to `0o777 &
+(~process.umask())`.
+
+Returns the first directory that had to be created, or undefined if
+everything already exists.
+
+You can optionally pass in an alternate `fs` implementation by passing in
+`opts.fs`. Your implementation should have `opts.fs.mkdirSync(path, mode)`
+and `opts.fs.statSync(path)`.
+
+You can also override just one or the other of `mkdirSync` and `statSync`
+by passing in `opts.statSync` or `opts.mkdirSync`, or providing an `fs`
+option that only overrides one of these.
+
+## mkdirp.manual, mkdirp.manualSync
+
+Use the manual implementation (not the native one). This is the default
+when the native implementation is not available or the stat/mkdir
+implementation is overridden.
+
+## mkdirp.native, mkdirp.nativeSync
+
+Use the native implementation (not the manual one). This is the default
+when the native implementation is available and stat/mkdir are not
+overridden.
+
+# implementation
+
+On Node.js v10.12.0 and above, use the native `fs.mkdir(p,
+{recursive:true})` option, unless `fs.mkdir`/`fs.mkdirSync` has been
+overridden by an option.
+
+## native implementation
+
+- If the path is a root directory, then pass it to the underlying
+ implementation and return the result/error. (In this case, it'll either
+ succeed or fail, but we aren't actually creating any dirs.)
+- Walk up the path statting each directory, to find the first path that
+ will be created, `made`.
+- Call `fs.mkdir(path, { recursive: true })` (or `fs.mkdirSync`)
+- If error, raise it to the caller.
+- Return `made`.
+
+## manual implementation
+
+- Call underlying `fs.mkdir` implementation, with `recursive: false`
+- If error:
+ - If path is a root directory, raise to the caller and do not handle it
+ - If ENOENT, mkdirp parent dir, store result as `made`
+ - stat(path)
+ - If error, raise original `mkdir` error
+ - If directory, return `made`
+ - Else, raise original `mkdir` error
+- else
+ - return `undefined` if a root dir, or `made` if set, or `path`
+
+## windows vs unix caveat
+
+On Windows file systems, attempts to create a root directory (ie, a drive
+letter or root UNC path) will fail. If the root directory exists, then it
+will fail with `EPERM`. If the root directory does not exist, then it will
+fail with `ENOENT`.
+
+On posix file systems, attempts to create a root directory (in recursive
+mode) will succeed silently, as it is treated like just another directory
+that already exists. (In non-recursive mode, of course, it fails with
+`EEXIST`.)
+
+In order to preserve this system-specific behavior (and because it's not as
+if we can create the parent of a root directory anyway), attempts to create
+a root directory are passed directly to the `fs` implementation, and any
+errors encountered are not handled.
+
+## native error caveat
+
+The native implementation (as of at least Node.js v13.4.0) does not provide
+appropriate errors in some cases (see
+[nodejs/node#31481](https://github.com/nodejs/node/issues/31481) and
+[nodejs/node#28015](https://github.com/nodejs/node/issues/28015)).
+
+In order to work around this issue, the native implementation will fall
+back to the manual implementation if an `ENOENT` error is encountered.
+
+# choosing a recursive mkdir implementation
+
+There are a few to choose from! Use the one that suits your needs best :D
+
+## use `fs.mkdir(path, {recursive: true}, cb)` if:
+
+- You wish to optimize performance even at the expense of other factors.
+- You don't need to know the first dir created.
+- You are ok with getting `ENOENT` as the error when some other problem is
+ the actual cause.
+- You can limit your platforms to Node.js v10.12 and above.
+- You're ok with using callbacks instead of promises.
+- You don't need/want a CLI.
+- You don't need to override the `fs` methods in use.
+
+## use this module (mkdirp 1.x) if:
+
+- You need to know the first directory that was created.
+- You wish to use the native implementation if available, but fall back
+ when it's not.
+- You prefer promise-returning APIs to callback-taking APIs.
+- You want more useful error messages than the native recursive mkdir
+ provides (at least as of Node.js v13.4), and are ok with re-trying on
+ `ENOENT` to achieve this.
+- You need (or at least, are ok with) a CLI.
+- You need to override the `fs` methods in use.
+
+## use [`make-dir`](http://npm.im/make-dir) if:
+
+- You do not need to know the first dir created (and wish to save a few
+ `stat` calls when using the native implementation for this reason).
+- You wish to use the native implementation if available, but fall back
+ when it's not.
+- You prefer promise-returning APIs to callback-taking APIs.
+- You are ok with occasionally getting `ENOENT` errors for failures that
+ are actually related to something other than a missing file system entry.
+- You don't need/want a CLI.
+- You need to override the `fs` methods in use.
+
+## use mkdirp 0.x if:
+
+- You need to know the first directory that was created.
+- You need (or at least, are ok with) a CLI.
+- You need to override the `fs` methods in use.
+- You're ok with using callbacks instead of promises.
+- You are not running on Windows, where the root-level ENOENT errors can
+ lead to infinite regress.
+- You think vinyl just sounds warmer and richer for some weird reason.
+- You are supporting truly ancient Node.js versions, before even the advent
+ of a `Promise` language primitive. (Please don't. You deserve better.)
+
+# cli
+
+This package also ships with a `mkdirp` command.
+
+```
+$ mkdirp -h
+
+usage: mkdirp [DIR1,DIR2..] {OPTIONS}
+
+ Create each supplied directory including any necessary parent directories
+ that don't yet exist.
+
+ If the directory already exists, do nothing.
+
+OPTIONS are:
+
+ -m<mode> If a directory needs to be created, set the mode as an octal
+ --mode=<mode> permission string.
+
+ -v --version Print the mkdirp version number
+
+ -h --help Print this helpful banner
+
+ -p --print Print the first directories created for each path provided
+
+ --manual Use manual implementation, even if native is available
+```
+
+# install
+
+With [npm](http://npmjs.org) do:
+
+```
+npm install mkdirp
+```
+
+to get the library locally, or
+
+```
+npm install -g mkdirp
+```
+
+to get the command everywhere, or
+
+```
+npx mkdirp ...
+```
+
+to run the command without installing it globally.
+
+# platform support
+
+This module works on node v8, but only v10 and above are officially
+supported, as Node v8 reached its LTS end of life 2020-01-01, which is in
+the past, as of this writing.
+
+# license
+
+MIT
diff --git a/backend/node_modules/node-addon-api/CHANGELOG.md b/backend/node_modules/node-addon-api/CHANGELOG.md
new file mode 100644
index 0000000..12b04f2
--- /dev/null
+++ b/backend/node_modules/node-addon-api/CHANGELOG.md
@@ -0,0 +1,722 @@
+# node-addon-api Changelog
+
+## 2021-05-28 Version 3.2.1, @NickNaso
+
+### Notable changes:
+
+#### Documentation
+
+- Fixed documentation about the oldest Node.js version supported.
+
+### Commits
+
+* [[`6d41ee5a3a`](https://github.com/nodejs/node-addon-api/commit/6d41ee5a3a)] - Fixed readme for new release. (NickNaso)
+
+## 2021-05-17 Version 3.2.0, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- Remove unnecessary symbol exposure.
+- Fixed leak in `Napi::ObjectWrap` instance for getter and setter method.
+- Added `Napi::Object::Freeze` and `Napi::object::Seal` methods.
+- `Napi::Reference` is now copyable.
+
+#### Documentation
+
+- Added docuemtnation for `Napi::Object::PropertyLValue`.
+- Changed all N-API references to Node-API.
+- Some minor corrections all over the documentation.
+
+#### TEST
+
+- Added tests relating to fetch property from Global Object.
+- Added addtiona tests for `Napi::Object`.
+- Added test for `Napi::Function` contructors.
+- Fixed intermittent failure for `Napi::ThreadSafeFunction` test.
+- Some minor corrections all over the test suite.
+
+### TOOL
+
+- Added Node.js v16.x to CI.
+- Added CI configuration for Windows.
+- Some fixex on linter command.
+
+### Commits
+
+* [[`52721312f6`](https://github.com/nodejs/node-addon-api/commit/52721312f6)] - **docs**: add napi-rs iin Other Bindings section (#999) (LongYinan)
+* [[`78a6570a42`](https://github.com/nodejs/node-addon-api/commit/78a6570a42)] - **doc**: fix typo in code example (#997) (Tobias Nießen)
+* [[`da3bd5778f`](https://github.com/nodejs/node-addon-api/commit/da3bd5778f)] - **test**: fix undoc assumptions about the timing of tsfn calls (legendecas) [#995](https://github.com/nodejs/node-addon-api/pull/995)
+* [[`410cf6a81e`](https://github.com/nodejs/node-addon-api/commit/410cf6a81e)] - **src**: return bool on object freeze and seal (#991) (legendecas)
+* [[`93f1898312`](https://github.com/nodejs/node-addon-api/commit/93f1898312)] - **src**: return bool on object set and define property (#977) (legendecas)
+* [[`331c2ee274`](https://github.com/nodejs/node-addon-api/commit/331c2ee274)] - **build**: add Node.js v16.x to CI (#983) (legendecas)
+* [[`b6f5eb15e6`](https://github.com/nodejs/node-addon-api/commit/b6f5eb15e6)] - **test**: run test suites with helpers (legendecas) [#976](https://github.com/nodejs/node-addon-api/pull/976)
+* [[`fbcdf00ea0`](https://github.com/nodejs/node-addon-api/commit/fbcdf00ea0)] - **test**: rename misspelled parameters (Tobias Nießen) [#973](https://github.com/nodejs/node-addon-api/pull/973)
+* [[`63a6c32e80`](https://github.com/nodejs/node-addon-api/commit/63a6c32e80)] - **test**: fix intermittent TSFN crashes (Kevin Eady) [#974](https://github.com/nodejs/node-addon-api/pull/974)
+* [[`8f120b033f`](https://github.com/nodejs/node-addon-api/commit/8f120b033f)] - **fix**: key for wapping drawing's system condition (#970) (Kévin VOYER)
+* [[`1c9d528d66`](https://github.com/nodejs/node-addon-api/commit/1c9d528d66)] - **doc**: correct struct definition (#969) (Darshan Sen)
+* [[`5e64d1fa61`](https://github.com/nodejs/node-addon-api/commit/5e64d1fa61)] - Added badges for Node-API v7 and v8. (#954) (Nicola Del Gobbo)
+* [[`6ce629b3fa`](https://github.com/nodejs/node-addon-api/commit/6ce629b3fa)] - **src**: add pull request template (#967) (Michael Dawson)
+* [[`98126661af`](https://github.com/nodejs/node-addon-api/commit/98126661af)] - Update CONTRIBUTING.md (#966) (Michael Dawson)
+* [[`77350eee98`](https://github.com/nodejs/node-addon-api/commit/77350eee98)] - **src**: added Freeze and Seal method to Object class. (NickNaso) [#955](https://github.com/nodejs/node-addon-api/pull/955)
+* [[`bc5147cc4a`](https://github.com/nodejs/node-addon-api/commit/bc5147cc4a)] - Finished tests relating to fetch property from Global Object (JckXia)
+* [[`0127813111`](https://github.com/nodejs/node-addon-api/commit/0127813111)] - **doc**: unambiguously mark deprecated signatures (Tobias Nießen) [#942](https://github.com/nodejs/node-addon-api/pull/942)
+* [[`787e216105`](https://github.com/nodejs/node-addon-api/commit/787e216105)] - **doc**: rename N-API with Node-API (Darshan Sen) [#951](https://github.com/nodejs/node-addon-api/pull/951)
+* [[`628023689a`](https://github.com/nodejs/node-addon-api/commit/628023689a)] - **src**: rename N-API with Node-API on comments (NickNaso) [#953](https://github.com/nodejs/node-addon-api/pull/953)
+* [[`5c6391578f`](https://github.com/nodejs/node-addon-api/commit/5c6391578f)] - **build**: add CI configuration for Windows (NickNaso) [#948](https://github.com/nodejs/node-addon-api/pull/948)
+* [[`8ef07251ec`](https://github.com/nodejs/node-addon-api/commit/8ef07251ec)] - **doc**: added some warnings for buffer and array buffer factory method. (#929) (Nicola Del Gobbo)
+* [[`6490b1f730`](https://github.com/nodejs/node-addon-api/commit/6490b1f730)] - **doc**: sync Object::Set value arg with Value::From (#933) (Tobias Nießen)
+* [[`7319a0d7a2`](https://github.com/nodejs/node-addon-api/commit/7319a0d7a2)] - Fix tab indent (#938) (Tobias Nießen)
+* [[`1916cb937e`](https://github.com/nodejs/node-addon-api/commit/1916cb937e)] - **chore**: fixup linter commands (#940) (legendecas)
+* [[`fc4585fa23`](https://github.com/nodejs/node-addon-api/commit/fc4585fa23)] - **test**: dd tests for Function constructors (JoseExposito) [#937](https://github.com/nodejs/node-addon-api/pull/937)
+* [[`87b7aae469`](https://github.com/nodejs/node-addon-api/commit/87b7aae469)] - **doc**: warn about SuppressDestruct() (#926) (Anna Henningsen)
+* [[`71494a49a3`](https://github.com/nodejs/node-addon-api/commit/71494a49a3)] - **src,doc**: refactor to replace typedefs with usings (Darshan Sen) [#910](https://github.com/nodejs/node-addon-api/pull/910)
+* [[`298ff8d9d2`](https://github.com/nodejs/node-addon-api/commit/298ff8d9d2)] - **test**: add additional tests for Object (JoseExposito) [#923](https://github.com/nodejs/node-addon-api/pull/923)
+* [[`8a1147b430`](https://github.com/nodejs/node-addon-api/commit/8a1147b430)] - **revert**: src: add additional tests for Function (Michael Dawson)
+* [[`bb56ffaa6f`](https://github.com/nodejs/node-addon-api/commit/bb56ffaa6f)] - **doc**: fix documentation for object api (Nicola Del Gobbo) [#931](https://github.com/nodejs/node-addon-api/pull/931)
+* [[`3b8bddab49`](https://github.com/nodejs/node-addon-api/commit/3b8bddab49)] - **src**: add additional tests for Function (José Expósito) [#928](https://github.com/nodejs/node-addon-api/pull/928)
+* [[`74ab50c775`](https://github.com/nodejs/node-addon-api/commit/74ab50c775)] - **src**: allow references to be copyable in APIs (legendecas) [#915](https://github.com/nodejs/node-addon-api/pull/915)
+* [[`929709d0fe`](https://github.com/nodejs/node-addon-api/commit/929709d0fe)] - **doc**: add propertylvalue.md (#925) (Gabriel Schulhof)
+* [[`69d0d98be4`](https://github.com/nodejs/node-addon-api/commit/69d0d98be4)] - fixup (Anna Henningsen)
+* [[`46e41d961b`](https://github.com/nodejs/node-addon-api/commit/46e41d961b)] - fixup (Anna Henningsen)
+* [[`1af1642fb7`](https://github.com/nodejs/node-addon-api/commit/1af1642fb7)] - **doc**: warn about SuppressDestruct() (Anna Henningsen)
+* [[`12c548b2ff`](https://github.com/nodejs/node-addon-api/commit/12c548b2ff)] - **tools**: fix error detection (#914) (Darshan Sen)
+* [[`458d895d5b`](https://github.com/nodejs/node-addon-api/commit/458d895d5b)] - **packaging**: list files to be published to npm (Lovell Fuller) [#889](https://github.com/nodejs/node-addon-api/pull/889)
+* [[`f7ed2490d4`](https://github.com/nodejs/node-addon-api/commit/f7ed2490d4)] - **test**: remove outdated V8 flag (Darshan Sen) [#895](https://github.com/nodejs/node-addon-api/pull/895)
+* [[`a575a6ec60`](https://github.com/nodejs/node-addon-api/commit/a575a6ec60)] - **src**: fix leak in ObjectWrap instance set/getters (Kevin Eady) [#899](https://github.com/nodejs/node-addon-api/pull/899)
+* [[`b6e844e0b0`](https://github.com/nodejs/node-addon-api/commit/b6e844e0b0)] - **doc**: fix spelling of "targeted" and "targeting" (#904) (Tobias Nießen)
+* [[`4d856f6e91`](https://github.com/nodejs/node-addon-api/commit/4d856f6e91)] - **src**: remove unnecessary symbol exposure (Gabriel Schulhof) [#896](https://github.com/nodejs/node-addon-api/pull/896)
+* [[`f35bb7d0d7`](https://github.com/nodejs/node-addon-api/commit/f35bb7d0d7)] - **doc**: Update GitHub URL references from 'master' to 'HEAD' (#898) (Jim Schlight)
+* [[`286ae215d1`](https://github.com/nodejs/node-addon-api/commit/286ae215d1)] - Add warning about branch rename (Michael Dawson)
+* [[`a4a7b28288`](https://github.com/nodejs/node-addon-api/commit/a4a7b28288)] - Update branch references from master to main (#886) (Jim Schlight)
+* [[`a2ad0a107a`](https://github.com/nodejs/node-addon-api/commit/a2ad0a107a)] - **docs**: add NAN to N-API resource link (#880) (kidneysolo)
+* [[`1c040eeb63`](https://github.com/nodejs/node-addon-api/commit/1c040eeb63)] - **test**: load testModules automatically (raisinten) [#876](https://github.com/nodejs/node-addon-api/pull/876)
+* [[`bf478e4496`](https://github.com/nodejs/node-addon-api/commit/bf478e4496)] - **src**: use NAPI\_NOEXCEPT macro instead of noexcept (NickNaso) [#864](https://github.com/nodejs/node-addon-api/pull/864)
+* [[`744705f2eb`](https://github.com/nodejs/node-addon-api/commit/744705f2eb)] - **test**: refactor remove repeated execution index.js (raisinten) [#839](https://github.com/nodejs/node-addon-api/pull/839)
+* [[`db62e3c811`](https://github.com/nodejs/node-addon-api/commit/db62e3c811)] - Update team members (Michael Dawson)
+
+## 2020-12-17 Version 3.1.0, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- Added `Napi::TypedThreadSafeFunction` class that is a new implementation for
+thread-safe functions.
+- Fixed leak on `Napi::AsyncProgressWorkerBase`.
+- Fixed empty data on `Napi::AsyncProgressWorker::OnProgress` caused by race
+conditions of `Napi::AsyncProgressWorker`.
+- Added `Napi::ArrayBuffer::Detach()` and `Napi::ArrayBuffer::IsDetached()`.
+- Fixed problem on `Napi::FinalizeCallback` it needs to create a
+`Napi::HandleScope` when it calls `Napi::ObjectWrap::~ObjectWrap()`.
+
+#### Documentation
+
+- Added documentation for `Napi::TypedThreadSafeFunction`.
+- Removed unsued Doxygen file.
+- Clarified when to use N-API.
+- Added support information.
+- Some minor corrections all over the documentation.
+
+#### TEST
+
+- Added test for `Napi::TypedThreadSafeFunction`.
+- Fixed testing for specific N-API version.
+- Some minor corrections all over the test suite.
+
+### TOOL
+
+- Setup github actions for tests.
+- Added stale action.
+- Removed `sudo` tag from Travis CI.
+- Added clang-format.
+- Added pre-commit package for linting.
+
+### Commits
+
+* [[`ff642c5b85`](https://github.com/nodejs/node-addon-api/commit/ff642c5b85)] - **doc**: fix tsfn docs to reflect true implementation (#860) (Kevin Eady)
+* [[`86feeebf54`](https://github.com/nodejs/node-addon-api/commit/86feeebf54)] - **src**: empty data OnProgress in AsyncProgressWorker (legendecas) [#853](https://github.com/nodejs/node-addon-api/pull/853)
+* [[`a7fb5fb31c`](https://github.com/nodejs/node-addon-api/commit/a7fb5fb31c)] - **action**: add stale action (#856) (Michael Dawson)
+* [[`fd44609885`](https://github.com/nodejs/node-addon-api/commit/fd44609885)] - **chore**: setup github actions for tests (#854) (legendecas) [#854](https://github.com/nodejs/node-addon-api/pull/854)
+* [[`c52ace4813`](https://github.com/nodejs/node-addon-api/commit/c52ace4813)] - **script**: fix complains that js files are not supported on npm run lint:fix (#852) (legendecas)
+* [[`b4a3364ad5`](https://github.com/nodejs/node-addon-api/commit/b4a3364ad5)] - **doc**: remove unused Doxygen file (#851) (Michael Dawson)
+* [[`b810466ae2`](https://github.com/nodejs/node-addon-api/commit/b810466ae2)] - **doc**: clarify when to use N-API (#849) (Michael Dawson)
+* [[`528b9f6832`](https://github.com/nodejs/node-addon-api/commit/528b9f6832)] - **test**: remove sudo from travis (#850) (Michael Dawson)
+* [[`4bb680de4e`](https://github.com/nodejs/node-addon-api/commit/4bb680de4e)] - Remove misleading sentence (#847) (Nikolai Vavilov) [#847](https://github.com/nodejs/node-addon-api/pull/847)
+* [[`48e6b584a3`](https://github.com/nodejs/node-addon-api/commit/48e6b584a3)] - Merge pull request #742 from KevinEady/contexted-tsfn-api-gcc-4 (Gabriel Schulhof)
+* [[`d5e37210cc`](https://github.com/nodejs/node-addon-api/commit/d5e37210cc)] - **tools**: print more instructions on clang-format check failed (#846) (legendecas) [#846](https://github.com/nodejs/node-addon-api/pull/846)
+* [[`d9e11ff2c9`](https://github.com/nodejs/node-addon-api/commit/d9e11ff2c9)] - **doc**: add support info (#843) (Michael Dawson) [#843](https://github.com/nodejs/node-addon-api/pull/843)
+* [[`356e93d69a`](https://github.com/nodejs/node-addon-api/commit/356e93d69a)] - **test**: fixup testing for specific N-API version (#840) (Michael Dawson) [#840](https://github.com/nodejs/node-addon-api/pull/840)
+* [[`5e5b9ce1b7`](https://github.com/nodejs/node-addon-api/commit/5e5b9ce1b7)] - Apply formatting changes (Kevin Eady)
+* [[`559ad8c0c0`](https://github.com/nodejs/node-addon-api/commit/559ad8c0c0)] - Merge remote-tracking branch 'upstream/master' into contexted-tsfn-api-gcc-4 (Kevin Eady)
+* [[`c24c455ced`](https://github.com/nodejs/node-addon-api/commit/c24c455ced)] - Rename to TypedThreadSafeFunction (Kevin Eady)
+* [[`63b43f4125`](https://github.com/nodejs/node-addon-api/commit/63b43f4125)] - **test**: fix buildType bug objectwrap\_worker\_thread (raisinten) [#837](https://github.com/nodejs/node-addon-api/pull/837)
+* [[`6321f2ba1a`](https://github.com/nodejs/node-addon-api/commit/6321f2ba1a)] - **test**: fix typos in addon\_build/index.js (raisinten) [#838](https://github.com/nodejs/node-addon-api/pull/838)
+* [[`59c6a6aeb0`](https://github.com/nodejs/node-addon-api/commit/59c6a6aeb0)] - **fix**: git-clang-format doesn't recognize no changes requested on given files (#835) (legendecas)
+* [[`1427b3ef78`](https://github.com/nodejs/node-addon-api/commit/1427b3ef78)] - **src**: create a HandleScope in FinalizeCallback (blagoev) [#832](https://github.com/nodejs/node-addon-api/pull/832)
+* [[`8fb5820557`](https://github.com/nodejs/node-addon-api/commit/8fb5820557)] - **build**: add incremental clang-format checks (legendecas) [#819](https://github.com/nodejs/node-addon-api/pull/819)
+* [[`2c02d317e5`](https://github.com/nodejs/node-addon-api/commit/2c02d317e5)] - **build**: add pre-commit package for linting (#823) (Kevin Eady)
+* [[`1b52c28eb8`](https://github.com/nodejs/node-addon-api/commit/1b52c28eb8)] - Clean up AsyncProgressWorker documentation (#831) (mastergberry)
+* [[`4abe7cfe30`](https://github.com/nodejs/node-addon-api/commit/4abe7cfe30)] - **test**: rename tsfnex test files (Kevin Eady)
+* [[`c9563caa25`](https://github.com/nodejs/node-addon-api/commit/c9563caa25)] - **src**: add ArrayBuffer::Detach() and ::IsDetached() (Tobias Nießen) [#659](https://github.com/nodejs/node-addon-api/pull/659)
+* [[`c79cabaed2`](https://github.com/nodejs/node-addon-api/commit/c79cabaed2)] - **doc**: avoid directing users to HTTP (#828) (Tobias Nießen)
+* [[`7a13f861ab`](https://github.com/nodejs/node-addon-api/commit/7a13f861ab)] - **doc**: fix additional typo (Kevin Eady)
+* [[`7ec9741dd2`](https://github.com/nodejs/node-addon-api/commit/7ec9741dd2)] - Merge remote-tracking branch 'upstream/master' into contexted-tsfn-api-gcc-4 (Kevin Eady)
+* [[`f5fad239fa`](https://github.com/nodejs/node-addon-api/commit/f5fad239fa)] - Update object\_reference.md (#827) (kidneysolo)
+* [[`35b65712c2`](https://github.com/nodejs/node-addon-api/commit/35b65712c2)] - **Fix**: some typos in documentation (#826) (Helio Frota)
+* [[`8983383000`](https://github.com/nodejs/node-addon-api/commit/8983383000)] - **Fix**: some typos in the document (#825) (Ziqiu Zhao)
+* [[`826e466ef6`](https://github.com/nodejs/node-addon-api/commit/826e466ef6)] - Fixed example in addon.md. (#820) (nempoBu4) [#820](https://github.com/nodejs/node-addon-api/pull/820)
+* [[`b54f5eb788`](https://github.com/nodejs/node-addon-api/commit/b54f5eb788)] - Additional changes from review (Kevin Eady)
+* [[`59f27dac9a`](https://github.com/nodejs/node-addon-api/commit/59f27dac9a)] - Fix common.gypi (Kevin Eady)
+* [[`151a914c99`](https://github.com/nodejs/node-addon-api/commit/151a914c99)] - Apply documentation suggestions from code review (Kevin Eady)
+* [[`ceb27d4949`](https://github.com/nodejs/node-addon-api/commit/ceb27d4949)] - **src**: fix leak in AsyncProgressWorkerBase\<DataType\> (Ferdinand Holzer) [#795](https://github.com/nodejs/node-addon-api/pull/795)
+
+## 2020-09-18 Version 3.0.2, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- Introduced `include_dir` for use with **gyp** in a scalar context.
+- Added `Napi::Addon` to help handle the loading of a native add-on into
+multiple threads and or multiple times in the same thread.
+- Concentrate callbacks provided to core N-API.
+- Make sure wrapcallback is used.
+
+#### Documentation
+
+- Added documentation for `Napi::Addon`.
+- Added documentation that reports the full class hierarchy.
+- Added link to N-API tutorial website.
+- Some minor corrections all over the documentation.
+
+#### TEST
+
+- Added tests to check the build process.
+- Refactored test for threasfafe function using async/await.
+- Converted tests that gc into async functions that await 10 ticks after
+each gc.
+- Some minor corrections all over the test suite.
+
+### Commits
+
+* [[`51e25f7c39`](https://github.com/nodejs/node-addon-api/commit/51e25f7c39)] - **doc**: remove a file (#815) (Gabriel Schulhof)
+* [[`8c9f1809a2`](https://github.com/nodejs/node-addon-api/commit/8c9f1809a2)] - **doc**: add inheritance links and other changes (Gabriel Schulhof) [#798](https://github.com/nodejs/node-addon-api/pull/798)
+* [[`6562e6b0ab`](https://github.com/nodejs/node-addon-api/commit/6562e6b0ab)] - **test**: added tests to check the build process (NickNaso) [#808](https://github.com/nodejs/node-addon-api/pull/808)
+* [[`a13b36c96e`](https://github.com/nodejs/node-addon-api/commit/a13b36c96e)] - **test**: fix the threasfafe function test (NickNaso) [#807](https://github.com/nodejs/node-addon-api/pull/807)
+* [[`f27623ff61`](https://github.com/nodejs/node-addon-api/commit/f27623ff61)] - **build**: introduce include\_dir (Lovell Fuller) [#766](https://github.com/nodejs/node-addon-api/pull/766)
+* [[`9aceea71fc`](https://github.com/nodejs/node-addon-api/commit/9aceea71fc)] - **src**: concentrate callbacks provided to core N-API (Gabriel Schulhof) [#786](https://github.com/nodejs/node-addon-api/pull/786)
+* [[`2bc45bbffd`](https://github.com/nodejs/node-addon-api/commit/2bc45bbffd)] - **test**: refactor test to use async/await (Velmisov) [#787](https://github.com/nodejs/node-addon-api/pull/787)
+* [[`518cfdcdc1`](https://github.com/nodejs/node-addon-api/commit/518cfdcdc1)] - **test**: test ObjectWrap destructor - no HandleScope (David Halls) [#729](https://github.com/nodejs/node-addon-api/pull/729)
+* [[`c2cbbd9191`](https://github.com/nodejs/node-addon-api/commit/c2cbbd9191)] - **doc**: add link to n-api tutorial website (#794) (Jim Schlight) [#794](https://github.com/nodejs/node-addon-api/pull/794)
+* [[`1c2a8d59b5`](https://github.com/nodejs/node-addon-api/commit/1c2a8d59b5)] - **doc**: Added required return to example (#793) (pacop) [#793](https://github.com/nodejs/node-addon-api/pull/793)
+* [[`cec2c76941`](https://github.com/nodejs/node-addon-api/commit/cec2c76941)] - **src**: wrap finalizer callback (Gabriel Schulhof) [#762](https://github.com/nodejs/node-addon-api/pull/762)
+* [[`4ce40d22a6`](https://github.com/nodejs/node-addon-api/commit/4ce40d22a6)] - **test**: use assert.strictEqual() (Koki Nishihara) [#777](https://github.com/nodejs/node-addon-api/pull/777)
+* [[`461e3640c6`](https://github.com/nodejs/node-addon-api/commit/461e3640c6)] - **test**: string tests together (Gabriel Schulhof) [#773](https://github.com/nodejs/node-addon-api/pull/773)
+* [[`5af645f649`](https://github.com/nodejs/node-addon-api/commit/5af645f649)] - **src**: add Addon\<T\> class (Gabriel Schulhof) [#749](https://github.com/nodejs/node-addon-api/pull/749)
+* [[`6148fb4bcc`](https://github.com/nodejs/node-addon-api/commit/6148fb4bcc)] - Synchronise Node.js versions in Appveyor Windows CI with Travis (#768) (Lovell Fuller)
+
+## 2020-07-13 Version 3.0.1, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- Fixed the usage of `Napi::Reference` with `Napi::TypedArray`.
+- Fixed `Napi::ObjectWrap` inheritance.
+
+#### Documentation
+
+- Updated the example for `Napi::ObjectWrap`.
+- Added documentation for instance data APIs.
+- Some minor corrections all over the documentation.
+
+#### TEST
+
+- Fixed test for `Napi::ArrayBuffer` and `Napi::Buffer`.
+- Some minor corrections all over the test suite.
+
+### Commits
+
+* [[`40c7926342`](https://github.com/nodejs/node-addon-api/commit/40c7926342)] - **build**: ensure paths with spaces can be used (Lovell Fuller) [#757](https://github.com/nodejs/node-addon-api/pull/757)
+* [[`ef16dfb4a2`](https://github.com/nodejs/node-addon-api/commit/ef16dfb4a2)] - **doc**: update ObjectWrap example (Gabriel Schulhof) [#754](https://github.com/nodejs/node-addon-api/pull/754)
+* [[`48f6762bf6`](https://github.com/nodejs/node-addon-api/commit/48f6762bf6)] - **src**: add \_\_wasm32\_\_ guards (Gus Caplan)
+* [[`bd2c5ec502`](https://github.com/nodejs/node-addon-api/commit/bd2c5ec502)] - Fixes issue 745. (#748) (Nicola Del Gobbo)
+* [[`4c01af2d87`](https://github.com/nodejs/node-addon-api/commit/4c01af2d87)] - Fix typo in CHANGELOG (#715) (Kasumi Hanazuki)
+* [[`36e1af96d5`](https://github.com/nodejs/node-addon-api/commit/36e1af96d5)] - **src**: fix use of Reference with typed arrays (Michael Dawson) [#726](https://github.com/nodejs/node-addon-api/pull/726)
+* [[`d463f02bc7`](https://github.com/nodejs/node-addon-api/commit/d463f02bc7)] - **src**: fix testEnumerables on ObjectWrap (Ferdinand Holzer) [#736](https://github.com/nodejs/node-addon-api/pull/736)
+* [[`ba7ad37d44`](https://github.com/nodejs/node-addon-api/commit/ba7ad37d44)] - **src**: fix ObjectWrap inheritance (David Halls) [#732](https://github.com/nodejs/node-addon-api/pull/732)
+* [[`31504c862b`](https://github.com/nodejs/node-addon-api/commit/31504c862b)] - **doc**: fix minor typo in object\_wrap.md (#741) (Daniel Bevenius) [#741](https://github.com/nodejs/node-addon-api/pull/741)
+* [[`beccf2145d`](https://github.com/nodejs/node-addon-api/commit/beccf2145d)] - **test**: fix up delays for array buffer test (Michael Dawson) [#737](https://github.com/nodejs/node-addon-api/pull/737)
+* [[`45cb1d9748`](https://github.com/nodejs/node-addon-api/commit/45cb1d9748)] - Correct AsyncProgressWorker link in README (#716) (Jeroen Janssen)
+* [[`381c0da60c`](https://github.com/nodejs/node-addon-api/commit/381c0da60c)] - **doc**: add instance data APIs (Gabriel Schulhof) [#708](https://github.com/nodejs/node-addon-api/pull/708)
+
+## 2020-04-30 Version 3.0.0, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- `Napi::Object` added templated property descriptors.
+- `Napi::ObjectWrap` added templated methods.
+- `Napi::ObjectWrap` the wrap is removed only on failure.
+- `Napi::ObjectWrap` the constructor's exceptions are gracefully handled.
+- `Napi::Function` added templated factory functions.
+- Added `Env::RunScript` method to run JavaScript code contained in a string.
+- Added templated version of `Napi::Function`.
+- Added benchmarking framework.
+- Added support for native addon instance data.
+- Added `Napi::AsyncProgressQueueWorker` api.
+- Changed the guards to `NAPI_VERSION > 5`.
+- Removed N-API implementation (v6.x and v8.x support).
+- `Napi::AsyncWorker::OnWorkComplete` and `Napi::AsyncWorker::OnExecute` methods
+are override-able.
+- Removed erroneous finalizer cleanup in `Napi::ThreadSafeFunction`.
+- Disabled caching in `Napi::ArrayBuffer`.
+- Explicitly disallow assign and copy operator.
+- Some minor corrections and improvements.
+
+#### Documentation
+
+- Updated documentation for `Napi::Object`.
+- Updated documentation for `Napi::Function`.
+- Updated documentation for `Napi::ObjectWrap`.
+- Added documentation on how to add benchmark.
+- Added documentation for `Napi::AsyncProgressQueueWorker`.
+- Added suggestion about tags to use on NPM.
+- Added reference to N-API badges.
+- Some minor corrections all over the documentation.
+
+#### TEST
+
+- Updated test cases for `Napi::Object`.
+- Updated test cases for `Napi::Function`.
+- Updated test cases for `Napi::ObjectWrap`.
+- Updated test cases for `Napi::Env`.
+- Added test cases for `Napi::AsyncProgressQueueWorker`.
+- Some minor corrections all over the test suite.
+
+### Commits
+
+* [[`187318e37f`](https://github.com/nodejs/node-addon-api/commit/187318e37f)] - **doc**: Removed references to Node.js lower than 10.x. (#709) (Nicola Del Gobbo)
+* [[`9c9accfbbe`](https://github.com/nodejs/node-addon-api/commit/9c9accfbbe)] - **src**: add support for addon instance data (Gabriel Schulhof) [#663](https://github.com/nodejs/node-addon-api/pull/663)
+* [[`82a96502a4`](https://github.com/nodejs/node-addon-api/commit/82a96502a4)] - **src**: change guards to NAPI\_VERSION \> 5 (Gabriel Schulhof) [#697](https://github.com/nodejs/node-addon-api/pull/697)
+* [[`a64e8a5641`](https://github.com/nodejs/node-addon-api/commit/a64e8a5641)] - **ci**: move travis from 13 to 14 (#707) (Gabriel Schulhof)
+* [[`4de23c9d6b`](https://github.com/nodejs/node-addon-api/commit/4de23c9d6b)] - **doc**: fix support bigint64/biguint64 guards (Yulong Wang) [#705](https://github.com/nodejs/node-addon-api/pull/705)
+* [[`fedc8195e3`](https://github.com/nodejs/node-addon-api/commit/fedc8195e3)] - **doc**: fix semicolon missing in async\_worker.md (Azlan Mukhtar) [#701](https://github.com/nodejs/node-addon-api/pull/701)
+* [[`cdb662506c`](https://github.com/nodejs/node-addon-api/commit/cdb662506c)] - **doc**: fix typo in bigint.md (#700) (Kelvin)
+* [[`e1a827ae29`](https://github.com/nodejs/node-addon-api/commit/e1a827ae29)] - **src**: fix AsyncProgressQueueWorker compilation (#696) (Gabriel Schulhof) [#696](https://github.com/nodejs/node-addon-api/pull/696)
+* [[`2c3d5df463`](https://github.com/nodejs/node-addon-api/commit/2c3d5df463)] - Merge pull request #692 from kelvinhammond/patch-1 (Nicola Del Gobbo)
+* [[`623e876949`](https://github.com/nodejs/node-addon-api/commit/623e876949)] - Merge pull request #688 from NickNaso/badges (Nicola Del Gobbo)
+* [[`6c97913d1f`](https://github.com/nodejs/node-addon-api/commit/6c97913d1f)] - Fix minor typo in object\_lifetime\_management.md (Kelvin)
+* [[`6b8dd47c55`](https://github.com/nodejs/node-addon-api/commit/6b8dd47c55)] - Added badge section to documentation. (NickNaso)
+* [[`89e62a9154`](https://github.com/nodejs/node-addon-api/commit/89e62a9154)] - **doc**: recommend tags of addon helpers (legendecas) [#683](https://github.com/nodejs/node-addon-api/pull/683)
+* [[`ab018444ae`](https://github.com/nodejs/node-addon-api/commit/ab018444ae)] - **src**: implement AsyncProgressQueueWorker (legendecas) [#585](https://github.com/nodejs/node-addon-api/pull/585)
+* [[`d43da6ac2b`](https://github.com/nodejs/node-addon-api/commit/d43da6ac2b)] - **doc**: add @legendecas to active member list (legendecas)
+* [[`cb498bbe7f`](https://github.com/nodejs/node-addon-api/commit/cb498bbe7f)] - **doc**: Add Napi::BigInt::New() overload for uint64\_t (ikokostya)
+* [[`baaaa8452c`](https://github.com/nodejs/node-addon-api/commit/baaaa8452c)] - **doc**: link threadsafe function from JS function (legendecas)
+* [[`7f56a78ff7`](https://github.com/nodejs/node-addon-api/commit/7f56a78ff7)] - **objectwrap**: remove wrap only on failure (Gabriel Schulhof)
+* [[`4d816183da`](https://github.com/nodejs/node-addon-api/commit/4d816183da)] - **doc**: fix example code (András Timár, Dr) [#657](https://github.com/nodejs/node-addon-api/pull/657)
+* [[`7ac6e21801`](https://github.com/nodejs/node-addon-api/commit/7ac6e21801)] - **gyp**: fix gypfile name in index.js (Anna Henningsen) [#658](https://github.com/nodejs/node-addon-api/pull/658)
+* [[`46484202ca`](https://github.com/nodejs/node-addon-api/commit/46484202ca)] - **test**: user data in function property descriptor (Kevin Eady) [#652](https://github.com/nodejs/node-addon-api/pull/652)
+* [[`0f8d730483`](https://github.com/nodejs/node-addon-api/commit/0f8d730483)] - **doc**: fix syntax error in example (András Timár, Dr) [#650](https://github.com/nodejs/node-addon-api/pull/650)
+* [[`4e885069f1`](https://github.com/nodejs/node-addon-api/commit/4e885069f1)] - **src**: call `napi\_remove\_wrap()` in `ObjectWrap` dtor (Anna Henningsen) [#475](https://github.com/nodejs/node-addon-api/pull/475)
+* [[`2fde5c3ca3`](https://github.com/nodejs/node-addon-api/commit/2fde5c3ca3)] - **test**: update BigInt test for recent change in core (Michael Dawson) [#649](https://github.com/nodejs/node-addon-api/pull/649)
+* [[`e8935bd8d9`](https://github.com/nodejs/node-addon-api/commit/e8935bd8d9)] - **test**: add test for own properties on ObjectWrap (Guenter Sandner) [#645](https://github.com/nodejs/node-addon-api/pull/645)
+* [[`23ff7f0b24`](https://github.com/nodejs/node-addon-api/commit/23ff7f0b24)] - **src**: make OnWorkComplete and OnExecute override-able (legendecas) [#589](https://github.com/nodejs/node-addon-api/pull/589)
+* [[`86384f94d3`](https://github.com/nodejs/node-addon-api/commit/86384f94d3)] - **objectwrap**: gracefully handle constructor exceptions (Gabriel Schulhof)
+* [[`9af69da01f`](https://github.com/nodejs/node-addon-api/commit/9af69da01f)] - remove N-API implementation, v6.x and v8.x support (Gabriel Schulhof) [#643](https://github.com/nodejs/node-addon-api/pull/643)
+* [[`920d544779`](https://github.com/nodejs/node-addon-api/commit/920d544779)] - **benchmark**: add templated version of Function (Gabriel Schulhof) [#637](https://github.com/nodejs/node-addon-api/pull/637)
+* [[`03759f7759`](https://github.com/nodejs/node-addon-api/commit/03759f7759)] - ignore benchmark built archives (legendecas) [#631](https://github.com/nodejs/node-addon-api/pull/631)
+* [[`5eeabb0214`](https://github.com/nodejs/node-addon-api/commit/5eeabb0214)] - **tsfn**: Remove erroneous finalizer cleanup (Kevin Eady) [#636](https://github.com/nodejs/node-addon-api/pull/636)
+* [[`9e0e0f31e4`](https://github.com/nodejs/node-addon-api/commit/9e0e0f31e4)] - **src**: remove unnecessary forward declarations (Gabriel Schulhof) [#633](https://github.com/nodejs/node-addon-api/pull/633)
+* [[`79deefb6f3`](https://github.com/nodejs/node-addon-api/commit/79deefb6f3)] - **src**: explicitly disallow assign and copy (legendecas) [#590](https://github.com/nodejs/node-addon-api/pull/590)
+* [[`af50ac281b`](https://github.com/nodejs/node-addon-api/commit/af50ac281b)] - **error**: do not replace pending exception (Gabriel Schulhof) [#629](https://github.com/nodejs/node-addon-api/pull/629)
+* [[`b72f1d6978`](https://github.com/nodejs/node-addon-api/commit/b72f1d6978)] - Disable caching in ArrayBuffer (Tobias Nießen) [#611](https://github.com/nodejs/node-addon-api/pull/611)
+* [[`0e7483eb7b`](https://github.com/nodejs/node-addon-api/commit/0e7483eb7b)] - Fix code format in tests (Tobias Nießen) [#617](https://github.com/nodejs/node-addon-api/pull/617)
+* [[`6a0646356d`](https://github.com/nodejs/node-addon-api/commit/6a0646356d)] - add benchmarking framework (Gabriel Schulhof) [#623](https://github.com/nodejs/node-addon-api/pull/623)
+* [[`ffc71edd54`](https://github.com/nodejs/node-addon-api/commit/ffc71edd54)] - Add Env::RunScript (Tobias Nießen) [#616](https://github.com/nodejs/node-addon-api/pull/616)
+* [[`a1b106066e`](https://github.com/nodejs/node-addon-api/commit/a1b106066e)] - **src**: add templated function factories (Gabriel Schulhof) [#608](https://github.com/nodejs/node-addon-api/pull/608)
+* [[`c584343217`](https://github.com/nodejs/node-addon-api/commit/c584343217)] - Add GetPropertyNames, HasOwnProperty, Delete (#615) (Tobias Nießen) [#615](https://github.com/nodejs/node-addon-api/pull/615)
+* [[`3acc4b32f5`](https://github.com/nodejs/node-addon-api/commit/3acc4b32f5)] - Fix std::string encoding (#619) (Tobias Nießen) [#619](https://github.com/nodejs/node-addon-api/pull/619)
+* [[`e71d0eadcc`](https://github.com/nodejs/node-addon-api/commit/e71d0eadcc)] - \[doc\] Fixed links to array documentation (#613) (Nicola Del Gobbo)
+* [[`3dfb1f0591`](https://github.com/nodejs/node-addon-api/commit/3dfb1f0591)] - Change "WG" to "team" (Tobias Nießen)
+* [[`ce91e14860`](https://github.com/nodejs/node-addon-api/commit/ce91e14860)] - **objectwrap**: add template methods (Dmitry Ashkadov) [#604](https://github.com/nodejs/node-addon-api/pull/604)
+* [[`cfa71b60f7`](https://github.com/nodejs/node-addon-api/commit/cfa71b60f7)] - **object**: add templated property descriptors (Gabriel Schulhof) [#610](https://github.com/nodejs/node-addon-api/pull/610)
+* [[`734725e971`](https://github.com/nodejs/node-addon-api/commit/734725e971)] - Correctly define copy assignment operators. (Rolf Timmermans)
+
+## 2019-11-21 Version 2.0.0, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- Added `Napi::AsyncProgressWorker` api.
+- Added error checking on `Napi::ThreadSafeFunction::GetContext`.
+- Added copy constructor to `Napi::ThreadSafeFunction`.
+- Added `Napi::ThreadSafeFunction::Ref` and `Napi::ThreadSafeFunction::Unref` to `Napi::ThreadSafeFunction`.
+- Added `Napi::Object::AddFinalizer` method.
+- Use `napi_add_finalizer()` to attach data when building against N-API 5.
+- Added `Napi::Date` api.
+- Added `Napi::ObjectWrap::Finalize` method.
+
+#### Documentation
+
+- Added documentation for `Napi::AsyncProgressWorker`.
+- Improve `Napi::AsyncWorker` documentation.
+- Added documentation for `Napi::Object::AddFinalizer` method.
+- Improved documentation for `Napi::ThreadSafeFunction`.
+- Improved documentation about the usage of CMake as build tool.
+- Some minor corrections all over the documentation.
+
+#### TEST
+
+- Added test cases for `Napi::AsyncProgressWorker` api.
+- Added test cases for `Napi::Date` api.
+- Added test cases for new features added to `Napi::ThreadSafeFunction`.
+
+### Commits
+
+* [[`c881168d49`](https://github.com/nodejs/node-addon-api/commit/c881168d49)] - **tsfn**: add error checking on GetContext (#583) (Kevin Eady) [#583](https://github.com/nodejs/node-addon-api/pull/583)
+* [[`24d75dd82f`](https://github.com/nodejs/node-addon-api/commit/24d75dd82f)] - Merge pull request #588 from NickNaso/add-asyncprogress-worker-readme (Nicola Del Gobbo)
+* [[`aa79e37b62`](https://github.com/nodejs/node-addon-api/commit/aa79e37b62)] - Merge pull request #587 from timrach/patch-1 (Nicola Del Gobbo)
+* [[`df75e08c2b`](https://github.com/nodejs/node-addon-api/commit/df75e08c2b)] - **tsfn**: support direct calls to underlying napi\_tsfn (Kevin Eady) [#58](https://github.com/nodejs/node-addon-api/pull/58)
+* [[`2298dfae58`](https://github.com/nodejs/node-addon-api/commit/2298dfae58)] - **doc**: Added AsyncProgressWorker to readme (NickNaso)
+* [[`b3609d33b6`](https://github.com/nodejs/node-addon-api/commit/b3609d33b6)] - Fix return type and declaration of setter callback (Tim Rach)
+* [[`295e560f55`](https://github.com/nodejs/node-addon-api/commit/295e560f55)] - **test**: improve guards for experimental features (legendecas)
+* [[`2e71842f63`](https://github.com/nodejs/node-addon-api/commit/2e71842f63)] - **tsfn**: Implement copy constructor (Kevin Eady) [#546](https://github.com/nodejs/node-addon-api/pull/546)
+* [[`650562cab9`](https://github.com/nodejs/node-addon-api/commit/650562cab9)] - **src**: implement AsyncProgressWorker (legendecas) [#529](https://github.com/nodejs/node-addon-api/pull/529)
+* [[`bdfd14101f`](https://github.com/nodejs/node-addon-api/commit/bdfd14101f)] - **src**: attach data with napi\_add\_finalizer (Gabriel Schulhof) [#577](https://github.com/nodejs/node-addon-api/pull/577)
+* [[`9e955a802b`](https://github.com/nodejs/node-addon-api/commit/9e955a802b)] - **doc**: change node.js to Node.js per guideline (#579) (Tobias Nießen) [#579](https://github.com/nodejs/node-addon-api/pull/579)
+* [[`b42e21e3a9`](https://github.com/nodejs/node-addon-api/commit/b42e21e3a9)] - **build**: move node/6 to travis allowed failures and add node/13 (#573) (Gabriel Schulhof)
+* [[`8d6132f609`](https://github.com/nodejs/node-addon-api/commit/8d6132f609)] - **doc**: improve AsyncWorker docs (#571) (legendecas) [#571](https://github.com/nodejs/node-addon-api/pull/571)
+* [[`bc8fc23627`](https://github.com/nodejs/node-addon-api/commit/bc8fc23627)] - **test**: do not run TSFN tests on NAPI\_VERSION \< 4 (legendecas) [#576](https://github.com/nodejs/node-addon-api/pull/576)
+* [[`bcc1d58fc4`](https://github.com/nodejs/node-addon-api/commit/bcc1d58fc4)] - implement Object::AddFinalizer (Gabriel Schulhof)
+* [[`e9a4bcd52a`](https://github.com/nodejs/node-addon-api/commit/e9a4bcd52a)] - **doc**: updates Make.js doc to current best practices (Jim Schlight) [#558](https://github.com/nodejs/node-addon-api/pull/558)
+* [[`b513d1aa7a`](https://github.com/nodejs/node-addon-api/commit/b513d1aa7a)] - **doc**: fix return type of ArrayBuffer::Data (Tobias Nießen) [#552](https://github.com/nodejs/node-addon-api/pull/552)
+* [[`34c11cf0a4`](https://github.com/nodejs/node-addon-api/commit/34c11cf0a4)] - **src**: disallow copying, double close of scopes (legendecas) [#566](https://github.com/nodejs/node-addon-api/pull/566)
+* [[`ce139a05e8`](https://github.com/nodejs/node-addon-api/commit/ce139a05e8)] - **src**: make failure of closing scopes fatal (legendecas) [#566](https://github.com/nodejs/node-addon-api/pull/566)
+* [[`740c79823e`](https://github.com/nodejs/node-addon-api/commit/740c79823e)] - **src**: add Env() to AsyncContext (Rolf Timmermans) [#568](https://github.com/nodejs/node-addon-api/pull/568)
+* [[`ea9ce1c801`](https://github.com/nodejs/node-addon-api/commit/ea9ce1c801)] - **tsfn**: add wrappers for Ref and Unref (Kevin Eady) [#561](https://github.com/nodejs/node-addon-api/pull/561)
+* [[`2e1769e1a3`](https://github.com/nodejs/node-addon-api/commit/2e1769e1a3)] - **error**: remove unnecessary if condition (legendecas) [#562](https://github.com/nodejs/node-addon-api/pull/562)
+* [[`828f223a87`](https://github.com/nodejs/node-addon-api/commit/828f223a87)] - **doc**: fix spelling in ObjectWrap doc (#563) (Tobias Nießen) [#563](https://github.com/nodejs/node-addon-api/pull/563)
+* [[`dd9fa8a4a8`](https://github.com/nodejs/node-addon-api/commit/dd9fa8a4a8)] - **doc**: move Arunesh and Taylor to Emeritus (#540) (Michael Dawson) [#540](https://github.com/nodejs/node-addon-api/pull/540)
+* [[`cf8b8415df`](https://github.com/nodejs/node-addon-api/commit/cf8b8415df)] - **doc**: add Kevin to the list of collaborators (#539) (Michael Dawson) [#539](https://github.com/nodejs/node-addon-api/pull/539)
+* [[`5d6aeae7b5`](https://github.com/nodejs/node-addon-api/commit/5d6aeae7b5)] - **build**: enable travis for fast PR check (legendecas)
+* [[`6192e705cd`](https://github.com/nodejs/node-addon-api/commit/6192e705cd)] - **src**: add napi\_date (Mathias Küsel) [#497](https://github.com/nodejs/node-addon-api/pull/497)
+* [[`7b1ee96d52`](https://github.com/nodejs/node-addon-api/commit/7b1ee96d52)] - **doc**: update prebuild\_tools.md (Nurbol Alpysbayev) [#527](https://github.com/nodejs/node-addon-api/pull/527)
+* [[`0b4f3a5b8c`](https://github.com/nodejs/node-addon-api/commit/0b4f3a5b8c)] - **tsfn**: fix crash on releasing tsfn (legendecas) [#532](https://github.com/nodejs/node-addon-api/pull/532)
+* [[`c3c8814d2f`](https://github.com/nodejs/node-addon-api/commit/c3c8814d2f)] - implement virutal ObjectWrap::Finalize (Michael Price) [#515](https://github.com/nodejs/node-addon-api/pull/515)
+
+## 2019-07-23 Version 1.7.1, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- Fixed compilation problems that happen on Node.js with N-API version less than 4.
+
+### Commits
+
+* [[`c20bcbd069`](https://github.com/nodejs/node-addon-api/commit/c20bcbd069)] - Merge pull request #518 from NickNaso/master (Nicola Del Gobbo)
+* [[`6720d57253`](https://github.com/nodejs/node-addon-api/commit/6720d57253)] - Create the native threadsafe\_function for test only for N-API greater than 3. (NickNaso)
+* [[`37b6c185ad`](https://github.com/nodejs/node-addon-api/commit/37b6c185ad)] - Fix compilation breakage on 1.7.0 (NickNaso)
+
+## 2019-07-23 Version 1.7.0, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- Added `Napi::ThreadSafeFunction` api.
+- Added `Napi::AsyncWorker::GetResult()` method to `Napi::AsyncWorker`.
+- Added `Napi::AsyncWorker::Destroy()()` method to `Napi::AsyncWorker`.
+- Use full namespace on macros that create the errors.
+
+#### Documentation
+
+- Added documentation about contribution philosophy.
+- Added documentation for `Napi::ThreadSafeFunction`.
+- Some minor corrections all over the documentation.
+
+#### TEST
+
+- Added test case for bool operator.
+- Fixed test case for `Napi::ObjectWrap`.
+
+### Commits
+
+* [[`717c9ab163`](https://github.com/nodejs/node-addon-api/commit/717c9ab163)] - **AsyncWorker**: add GetResult() method (Kevin Eady) [#512](https://github.com/nodejs/node-addon-api/pull/512)
+* [[`d9d991bbc9`](https://github.com/nodejs/node-addon-api/commit/d9d991bbc9)] - **doc**: add ThreadSafeFunction to main README (#513) (Kevin Eady) [#513](https://github.com/nodejs/node-addon-api/pull/513)
+* [[`ac6000d0fd`](https://github.com/nodejs/node-addon-api/commit/ac6000d0fd)] - **doc**: fix minor typo (Yohei Kishimoto) [#510](https://github.com/nodejs/node-addon-api/pull/510)
+* [[`e9fa1eaa86`](https://github.com/nodejs/node-addon-api/commit/e9fa1eaa86)] - **doc**: document ThreadSafeFunction (#494) (Kevin Eady) [#494](https://github.com/nodejs/node-addon-api/pull/494)
+* [[`cab3b1e2a2`](https://github.com/nodejs/node-addon-api/commit/cab3b1e2a2)] - **doc**: ClassPropertyDescriptor example (Ross Weir) [#507](https://github.com/nodejs/node-addon-api/pull/507)
+* [[`c32d7dbdcf`](https://github.com/nodejs/node-addon-api/commit/c32d7dbdcf)] - **macros**: create errors fully namespaced (Gabriel Schulhof) [#506](https://github.com/nodejs/node-addon-api/pull/506)
+* [[`0a90df2fcb`](https://github.com/nodejs/node-addon-api/commit/0a90df2fcb)] - Implement ThreadSafeFunction class (Jinho Bang)
+* [[`1fb540eeb5`](https://github.com/nodejs/node-addon-api/commit/1fb540eeb5)] - Use curly brackets to include node\_api.h (NickNaso) [#493](https://github.com/nodejs/node-addon-api/pull/493)
+* [[`b2b08122ea`](https://github.com/nodejs/node-addon-api/commit/b2b08122ea)] - **AsyncWorker**: make callback optional (Kevin Eady) [#489](https://github.com/nodejs/node-addon-api/pull/489)
+* [[`a0cac77c82`](https://github.com/nodejs/node-addon-api/commit/a0cac77c82)] - Added test for bool operator (NickNaso) [#490](https://github.com/nodejs/node-addon-api/pull/490)
+* [[`ab7d8fcc48`](https://github.com/nodejs/node-addon-api/commit/ab7d8fcc48)] - **src**: fix objectwrap test case (Michael Dawson) [#495](https://github.com/nodejs/node-addon-api/pull/495)
+* [[`3b6b9eb88a`](https://github.com/nodejs/node-addon-api/commit/3b6b9eb88a)] - **AsyncWorker**: introduce Destroy() method (Gabriel Schulhof) [#488](https://github.com/nodejs/node-addon-api/pull/488)
+* [[`f633fbd95d`](https://github.com/nodejs/node-addon-api/commit/f633fbd95d)] - string.md: Document existing New(env, value, length) APIs (Tux3) [#486](https://github.com/nodejs/node-addon-api/pull/486)
+* [[`aaea55eda9`](https://github.com/nodejs/node-addon-api/commit/aaea55eda9)] - Little fix on code example (Nicola Del Gobbo) [#470](https://github.com/nodejs/node-addon-api/pull/470)
+* [[`e1cf9a35a1`](https://github.com/nodejs/node-addon-api/commit/e1cf9a35a1)] - Use `Value::IsEmpty` to check for empty value (NickNaso) [#478](https://github.com/nodejs/node-addon-api/pull/478)
+* [[`3ad5dfc7d9`](https://github.com/nodejs/node-addon-api/commit/3ad5dfc7d9)] - Fix link (Alba Mendez) [#481](https://github.com/nodejs/node-addon-api/pull/481)
+* [[`a3b4d99c45`](https://github.com/nodejs/node-addon-api/commit/a3b4d99c45)] - **doc**: Add contribution philosophy doc (Hitesh Kanwathirtha)
+* [[`36863f087b`](https://github.com/nodejs/node-addon-api/commit/36863f087b)] - **doc**: refer to TypedArray and ArrayBuffer from Array (Gabriel "_|Nix|_" Schulhof) [#465](https://github.com/nodejs/node-addon-api/pull/465)
+
+## 2019-04-03 Version 1.6.3, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- Added `SuppressDestruct` method to `Napi::AsyncWorker`.
+- Added new build targets for debug.
+- Exposed macros that throw errors.
+- Fixed memory leaks caused by callback data when a napi error occurs.
+- Fixed missing `void *data` usage in `Napi::PropertyDescriptors`.
+
+#### Documentation
+
+- Some minor corrections all over the documentation.
+
+### Commits
+
+* [[`83b41c2fe4`](https://github.com/nodejs/node-addon-api/commit/83b41c2fe4)] - Document adding -fvisibility=hidden flag for macOS users (Nicola Del Gobbo) [#460](https://github.com/nodejs/node-addon-api/pull/460)
+* [[`1ed7ad8769`](https://github.com/nodejs/node-addon-api/commit/1ed7ad8769)] - **doc**: correct return type of Int32Value to int32\_t (Bill Gallafent) [#459](https://github.com/nodejs/node-addon-api/pull/459)
+* [[`b0f6b601aa`](https://github.com/nodejs/node-addon-api/commit/b0f6b601aa)] - **src**: add AsyncWorker destruction suppression (Gabriel Schulhof) [#407](https://github.com/nodejs/node-addon-api/pull/407)
+* [[`72b1975cff`](https://github.com/nodejs/node-addon-api/commit/72b1975cff)] - **doc**: fix links to the Property Descriptor docs (Ryuichi Okumura) [#458](https://github.com/nodejs/node-addon-api/pull/458)
+* [[`fcfc612728`](https://github.com/nodejs/node-addon-api/commit/fcfc612728)] - **build**: new build targets for debug purposes (Jinho Bang) [#186](https://github.com/nodejs/node-addon-api/pull/186)
+* [[`c629553cd7`](https://github.com/nodejs/node-addon-api/commit/c629553cd7)] - **doc**: minor doc corrections and clarifications (Bruce A. MacNaughton) [#426](https://github.com/nodejs/node-addon-api/pull/426)
+* [[`7b87e0b999`](https://github.com/nodejs/node-addon-api/commit/7b87e0b999)] - **doc**: update number.md (Bernardo Heynemann) [#436](https://github.com/nodejs/node-addon-api/pull/436)
+* [[`fcf173d2a1`](https://github.com/nodejs/node-addon-api/commit/fcf173d2a1)] - **src**: expose macros that throw errors (Gabriel Schulhof) [#448](https://github.com/nodejs/node-addon-api/pull/448)
+* [[`b409a2f987`](https://github.com/nodejs/node-addon-api/commit/b409a2f987)] - **package**: add npm search keywords (Sam Roberts) [#452](https://github.com/nodejs/node-addon-api/pull/452)
+* [[`0bc7987806`](https://github.com/nodejs/node-addon-api/commit/0bc7987806)] - **doc**: fix references to Weak and Persistent (Jake Barnes) [#428](https://github.com/nodejs/node-addon-api/pull/428)
+* [[`ad6f569f85`](https://github.com/nodejs/node-addon-api/commit/ad6f569f85)] - **doc**: dix typo (Abhishek Kumar Singh) [#435](https://github.com/nodejs/node-addon-api/pull/435)
+* [[`28df833a49`](https://github.com/nodejs/node-addon-api/commit/28df833a49)] - Merge pull request #441 from jschlight/master (Jim Schlight)
+* [[`4921e74d83`](https://github.com/nodejs/node-addon-api/commit/4921e74d83)] - Rearranges names to be alphabetical (Jim Schlight)
+* [[`48220335b0`](https://github.com/nodejs/node-addon-api/commit/48220335b0)] - Membership review update (Jim Schlight)
+* [[`44f0695533`](https://github.com/nodejs/node-addon-api/commit/44f0695533)] - Merge pull request #394 from NickNaso/create\_release (Nicola DelGobbo)
+* [[`fa49d68416`](https://github.com/nodejs/node-addon-api/commit/fa49d68416)] - **doc**: fix some `Finalizer` signatures (Philipp Renoth) [#414](https://github.com/nodejs/node-addon-api/pull/414)
+* [[`020ac4a628`](https://github.com/nodejs/node-addon-api/commit/020ac4a628)] - **src**: make `Object::GetPropertyNames()` const (Philipp Renoth)[#415](https://github.com/nodejs/node-addon-api/pull/415)
+* [[`91eaa6f4cb`](https://github.com/nodejs/node-addon-api/commit/91eaa6f4cb)] - **src**: fix callbackData leaks on error napi status (Philipp Renoth) [#417](https://github.com/nodejs/node-addon-api/pull/417)
+* [[`0b40275752`](https://github.com/nodejs/node-addon-api/commit/0b40275752)] - **src**: fix noexcept control flow issues (Philipp Renoth) [#420](https://github.com/nodejs/node-addon-api/pull/420)
+* [[`c1ff2936f9`](https://github.com/nodejs/node-addon-api/commit/c1ff2936f9)] - **src**: fix missing void\*data usage in PropertyDescriptors (Luciano Martorella) [#374](https://github.com/nodejs/node-addon-api/pull/374)
+
+## 2018-11-29 Version 1.6.2, @NickNaso
+
+### Notable changes:
+
+#### API
+
+- Fixed selection logic for version 6.x.
+
+### Commmits
+
+* [[`07a0fc4e95`](https://github.com/nodejs/node-addon-api/commit/07a0fc4e95)] - **src**: fix selection logic for 6.x (Michael Dawson) [#402](https://github.com/nodejs/node-addon-api/pull/402)
+
+## 2018-11-14 Version 1.6.1, @NickNaso
+
+### Notable changes:
+
+#### Documentation
+
+- Updated links for examples to point to node-addon-examples repo.
+- Fixed typos on some parts of documentation.
+
+#### API
+
+- Removed unused member on `Napi::CallbackScope`.
+- Enabled `Napi::CallbackScope` only with N-API v3.
+
+### Commits
+
+* [[`e7cd292a74`](https://github.com/nodejs/node-addon-api/commit/e7cd292a74)] - **src**: remove unused CallbackScope member (Gabriel Schulhof) [#391](https://github.com/nodejs/node-addon-api/pull/391)
+* [[`d47399fe25`](https://github.com/nodejs/node-addon-api/commit/d47399fe25)] - **src**: guard CallbackScope with N-API v3 (Michael Dawson) [#395](https://github.com/nodejs/node-addon-api/pull/395)
+* [[`29a0262ab9`](https://github.com/nodejs/node-addon-api/commit/29a0262ab9)] - **doc**: fix typo (Dongjin Na) [#385](https://github.com/nodejs/node-addon-api/pull/385)
+* [[`b6dc15b88d`](https://github.com/nodejs/node-addon-api/commit/b6dc15b88d)] - **doc**: make links point to node-addon-examples repo (Nicola Del Gobbo) [#389](https://github.com/nodejs/node-addon-api/pull/389)
+
+## 2018-11-02 Version 1.6.0, @NickNaso
+
+### Notable changes:
+
+#### Documentation
+
+- Improved documentation about ABI stability.
+
+#### API
+
+- Add `Napi::CallbackScope` class that help to have the equivalent of the scope
+associated with a callback in place when making certain N-API calls
+
+#### TEST
+
+- Added tests for `Napi::Array` class.
+- Added tests for `Napi::ArrayBuffer` class.
+
+### Commits
+
+* [[`8ce605c657`](https://github.com/nodejs/node-addon-api/commit/8ce605c657)] - **build**: avoid using package-lock.json (Jaeseok Yoon) [#359](https://github.com/nodejs/node-addon-api/pull/359)
+* [[`fa3a6150b3`](https://github.com/nodejs/node-addon-api/commit/fa3a6150b3)] - **src**: use MakeCallback() -\> Call() in AsyncWorker (Jinho Bang) [#361](https://github.com/nodejs/node-addon-api/pull/361)
+* [[`2342415463`](https://github.com/nodejs/node-addon-api/commit/2342415463)] - **test**: create test objects in the stack instead of the heap (Dongjin Na) [#371](https://github.com/nodejs/node-addon-api/pull/371)
+* [[`67b7db0a6f`](https://github.com/nodejs/node-addon-api/commit/67b7db0a6f)] - **test**: write tests for Array class (Jaeseok Yoon) [#363](https://github.com/nodejs/node-addon-api/pull/363)
+* [[`729f6dc4ee`](https://github.com/nodejs/node-addon-api/commit/729f6dc4ee)] - **test**: add arraybuffer tests (Dongjin Na) [#369](https://github.com/nodejs/node-addon-api/pull/369)
+* [[`405f3e5b5b`](https://github.com/nodejs/node-addon-api/commit/405f3e5b5b)] - **src**: implement CallbackScope class (Jinho Bang) [#362](https://github.com/nodejs/node-addon-api/pull/362)
+* [[`015d95312f`](https://github.com/nodejs/node-addon-api/commit/015d95312f)] - **doc**: fix Napi::Reference link (Gentilhomme) [#365](https://github.com/nodejs/node-addon-api/pull/365)
+* [[`fd65078e3c`](https://github.com/nodejs/node-addon-api/commit/fd65078e3c)] - README.md: link to new ABI stability guide (Gabriel Schulhof) [#367](https://github.com/nodejs/node-addon-api/pull/367)
+* [[`ffebf9ba9a`](https://github.com/nodejs/node-addon-api/commit/ffebf9ba9a)] - Updates for release 1.5.0 (NickNaso)
+
+## 2018-10-03 Version 1.5.0, @NickNaso
+
+### Notable changes:
+
+#### Documentation
+
+- Completed the documentation to cover all the API surface.
+- Numerous fixes to make documentation more consistent in all of its parts.
+
+#### API
+
+- Add `Napi::AsyncContext` class to handle asynchronous operation.
+- Add `Napi::BigInt` class to work with BigInt type.
+- Add `Napi::VersionManagement` class to retrieve the versions of Node.js and N-API.
+- Fix potential memory leaks.
+- DataView feature is enabled by default
+- Add descriptor for Symbols
+- Add new methods on `Napi::FunctionReference`.
+- Add the possibility to retrieve the environment on `Napi::Promise::Deferred`
+
+#### TOOL
+
+- Add tool to check if a native add-on is built using N-API
+
+#### TEST
+
+- Start to increase the test coverage
+- Fix in the test suite to better handle the experimental features that are not
+yet backported in the previous Node.js version.
+
+### Commits
+
+* [[`2009c019af`](https://github.com/nodejs/node-addon-api/commit/2009c019af)] - Merge pull request #292 from devsnek/feature/bigint (Gus Caplan)
+* [[`e44aca985e`](https://github.com/nodejs/node-addon-api/commit/e44aca985e)] - add bigint class (Gus Caplan)
+* [[`a3951ab973`](https://github.com/nodejs/node-addon-api/commit/a3951ab973)] - Add documentation for Env(). (Rolf Timmermans) [#318](https://github.com/nodejs/node-addon-api/pull/318)
+* [[`a6f7a6ad51`](https://github.com/nodejs/node-addon-api/commit/a6f7a6ad51)] - Add Env() to Promise::Deferred. (Rolf Timmermans)
+* [[`0097e96b92`](https://github.com/nodejs/node-addon-api/commit/0097e96b92)] - Fixed broken links for Symbol and String (NickNaso)
+* [[`b0ecd38d76`](https://github.com/nodejs/node-addon-api/commit/b0ecd38d76)] - Fix Code of conduct link properly (#323) (Jake Yoon) [#323](https://github.com/nodejs/node-addon-api/pull/323)
+* [[`223474900f`](https://github.com/nodejs/node-addon-api/commit/223474900f)] - **doc**: update Version management (Dongjin Na) [#360](https://github.com/nodejs/node-addon-api/pull/360)
+* [[`4f76262a10`](https://github.com/nodejs/node-addon-api/commit/4f76262a10)] - **doc**: some fix on `Napi::Boolean` documentation (NickNaso) [#354](https://github.com/nodejs/node-addon-api/pull/354)
+* [[`78374f72d2`](https://github.com/nodejs/node-addon-api/commit/78374f72d2)] - **doc**: number documentation (NickNaso) [#356](https://github.com/nodejs/node-addon-api/pull/356)
+* [[`51ffe453f8`](https://github.com/nodejs/node-addon-api/commit/51ffe453f8)] - **doc**: doc cleanup (NickNaso) [#353](https://github.com/nodejs/node-addon-api/pull/353)
+* [[`fc11c944b2`](https://github.com/nodejs/node-addon-api/commit/fc11c944b2)] - **doc**: major doc cleanup (NickNaso) [#335](https://github.com/nodejs/node-addon-api/pull/335)
+* [[`100d0a7cb2`](https://github.com/nodejs/node-addon-api/commit/100d0a7cb2)] - **doc**: first pass on objectwrap documentation (NickNaso) [#321](https://github.com/nodejs/node-addon-api/pull/321)
+* [[`c7d54180ff`](https://github.com/nodejs/node-addon-api/commit/c7d54180ff)] - **doc**: the Napi::ObjectWrap example does not compile (Arnaud Botella) [#339](https://github.com/nodejs/node-addon-api/pull/339)
+* [[`7cdd78726a`](https://github.com/nodejs/node-addon-api/commit/7cdd78726a)] - **doc**: added cpp highlight for string.md (Jaeseok Yoon) [#329](https://github.com/nodejs/node-addon-api/pull/329)
+* [[`8ed29f547c`](https://github.com/nodejs/node-addon-api/commit/8ed29f547c)] - **doc**: add blurb about ABI stability (Gabriel Schulhof) [#326](https://github.com/nodejs/node-addon-api/pull/326)
+* [[`757eb1f5a3`](https://github.com/nodejs/node-addon-api/commit/757eb1f5a3)] - **doc**: add function and function reference doc (NickNaso) [#299](https://github.com/nodejs/node-addon-api/pull/299)
+* [[`2885c18591`](https://github.com/nodejs/node-addon-api/commit/2885c18591)] - **doc**: Create changelog for release 1.4.0 (Nicola Del Gobbo)
+* [[`917bd60baa`](https://github.com/nodejs/node-addon-api/commit/917bd60baa)] - **src**: remove TODOs by fixing memory leaks (Gabriel Schulhof) [#343](https://github.com/nodejs/node-addon-api/pull/343)
+* [[`dfcb93945f`](https://github.com/nodejs/node-addon-api/commit/dfcb93945f)] - **src**: implement AsyncContext class (Jinho Bang) [#252](https://github.com/nodejs/node-addon-api/pull/252)
+* [[`211ed38d0d`](https://github.com/nodejs/node-addon-api/commit/211ed38d0d)] - **src**: make 'nothing' target a static library (Gabriel Schulhof) [#348](https://github.com/nodejs/node-addon-api/pull/348)
+* [[`97c4ab5cf2`](https://github.com/nodejs/node-addon-api/commit/97c4ab5cf2)] - **src**: add Call and MakeCallback that accept cargs (NickNaso) [#344](https://github.com/nodejs/node-addon-api/pull/344)
+* [[`b6e2d92c09`](https://github.com/nodejs/node-addon-api/commit/b6e2d92c09)] - **src**: enable DataView feature by default (Jinho) [#331](https://github.com/nodejs/node-addon-api/pull/331)
+* [[`0a00e7c97b`](https://github.com/nodejs/node-addon-api/commit/0a00e7c97b)] - **src**: implement missing descriptor defs for symbols (Philipp Renoth) [#280](https://github.com/nodejs/node-addon-api/pull/280)
+* [[`38e01b7e3b`](https://github.com/nodejs/node-addon-api/commit/38e01b7e3b)] - **src**: first pass on adding version management apis (NickNaso) [#325](https://github.com/nodejs/node-addon-api/pull/325)
+* [[`79ee8381d2`](https://github.com/nodejs/node-addon-api/commit/79ee8381d2)] - **src**: fix compile failure in test (Michael Dawson) [#345](https://github.com/nodejs/node-addon-api/pull/345)
+* [[`4d92a6066f`](https://github.com/nodejs/node-addon-api/commit/4d92a6066f)] - **src**: Add ObjectReference test case (Anisha Rohra) [#212](https://github.com/nodejs/node-addon-api/pull/212)
+* [[`779560f397`](https://github.com/nodejs/node-addon-api/commit/779560f397)] - **test**: add operator overloading tests in Number (Your Name) [#355](https://github.com/nodejs/node-addon-api/pull/355)
+* [[`73fed84ceb`](https://github.com/nodejs/node-addon-api/commit/73fed84ceb)] - **test**: add ability to control experimental tests (Michael Dawson) [#350](https://github.com/nodejs/node-addon-api/pull/350)
+* [[`14c69abd46`](https://github.com/nodejs/node-addon-api/commit/14c69abd46)] - **test**: write tests for Boolean class (Jaeseok Yoon) [#328](https://github.com/nodejs/node-addon-api/pull/328)
+* [[`2ad47a83b1`](https://github.com/nodejs/node-addon-api/commit/2ad47a83b1)] - **test**: explicitly cast to uint32\_t in test (Gabriel Schulhof) [#341](https://github.com/nodejs/node-addon-api/pull/341)
+* [[`622ffaea76`](https://github.com/nodejs/node-addon-api/commit/622ffaea76)] - **test**: Tighten up compiler warnings (Mikhail Cheshkov) [#315](https://github.com/nodejs/node-addon-api/pull/315)
+* [[`fd3c37b0f2`](https://github.com/nodejs/node-addon-api/commit/fd3c37b0f2)] - **tools**: add tool to check for N-API modules (Gabriel Schulhof) [#346](https://github.com/nodejs/node-addon-api/pull/346)
+
+## 2018-07-19 Version 1.4.0, @NickNaso
+
+### Notable changes:
+
+#### Documentation
+
+- Numerous additions to the documentation, filling out coverage
+ of API surface
+
+#### API
+
+- Add resource parameters to AsyncWorker constructor
+- Add memory management feature
+
+### Commits
+
+* [[`7dc5ac8bc3`](https://github.com/nodejs/node-addon-api/commit/7dc5ac8bc3)] - **doc**: update metadata for release (Nicola Del Gobbo)
+* [[`d68e86adb4`](https://github.com/nodejs/node-addon-api/commit/d68e86adb4)] - **doc**: Added documentation for PropertyDescriptor (Anisha Rohra) [#309](https://github.com/nodejs/node-addon-api/pull/309)
+* [[`968a5f2000`](https://github.com/nodejs/node-addon-api/commit/968a5f2000)] - **doc**: Add documentation for ObjectReference.md (Anisha Rohra) [#307](https://github.com/nodejs/node-addon-api/pull/307)
+* [[`908cdc314c`](https://github.com/nodejs/node-addon-api/commit/908cdc314c)] - **doc**: add `TypedArray` and `TypedArrayOf` (Kyle Farnung) [#305](https://github.com/nodejs/node-addon-api/pull/305)
+* [[`2ff776ffe3`](https://github.com/nodejs/node-addon-api/commit/2ff776ffe3)] - backport node::Persistent (Gabriel Schulhof) [#300](https://github.com/nodejs/node-addon-api/pull/300)
+* [[`98161970c9`](https://github.com/nodejs/node-addon-api/commit/98161970c9)] - Backport perf, crash and exception handling fixes (Gabriel Schulhof) [#295](https://github.com/nodejs/node-addon-api/pull/295)
+* [[`dd1191e086`](https://github.com/nodejs/node-addon-api/commit/dd1191e086)] - **test**: fix asyncworker test so it runs on 6.x (Michael Dawson) [#298](https://github.com/nodejs/node-addon-api/pull/298)
+* [[`11697fcecd`](https://github.com/nodejs/node-addon-api/commit/11697fcecd)] - **doc**: ArrayBuffer and Buffer documentation (Kyle Farnung) [#256](https://github.com/nodejs/node-addon-api/pull/256)
+* [[`605aa2babf`](https://github.com/nodejs/node-addon-api/commit/605aa2babf)] - Add memory management feature (NickNaso) [#286](https://github.com/nodejs/node-addon-api/pull/286)
+* [[`86be13a611`](https://github.com/nodejs/node-addon-api/commit/86be13a611)] - **doc**: Fix HandleScope docs (Ben Berman) [#287](https://github.com/nodejs/node-addon-api/pull/287)
+* [[`90f92c4dc0`](https://github.com/nodejs/node-addon-api/commit/90f92c4dc0)] - **doc**: Update broken links in README.md (Hitesh Kanwathirtha) [#290](https://github.com/nodejs/node-addon-api/pull/290)
+* [[`c2a620dc11`](https://github.com/nodejs/node-addon-api/commit/c2a620dc11)] - **doc**: Clarify positioning versus N-API (Michael Dawson) [#288](https://github.com/nodejs/node-addon-api/pull/288)
+* [[`6cff890ee5`](https://github.com/nodejs/node-addon-api/commit/6cff890ee5)] - **doc**: Fix typo in docs (Ben Berman) [#284](https://github.com/nodejs/node-addon-api/pull/284)
+* [[`7394bfd154`](https://github.com/nodejs/node-addon-api/commit/7394bfd154)] - **doc**: Fix typo in docs (Ben Berman) [#285](https://github.com/nodejs/node-addon-api/pull/285)
+* [[`12b2cdeed3`](https://github.com/nodejs/node-addon-api/commit/12b2cdeed3)] - fix test files (Kyle Farnung) [#257](https://github.com/nodejs/node-addon-api/pull/257)
+* [[`9ab6607242`](https://github.com/nodejs/node-addon-api/commit/9ab6607242)] - **doc**: Update Doc Version Number (joshgarde) [#277](https://github.com/nodejs/node-addon-api/pull/277)
+* [[`e029a076c6`](https://github.com/nodejs/node-addon-api/commit/e029a076c6)] - **doc**: First pass at basic Node Addon API docs (Hitesh Kanwathirtha) [#268](https://github.com/nodejs/node-addon-api/pull/268)
+* [[`74ff79717e`](https://github.com/nodejs/node-addon-api/commit/74ff79717e)] - **doc**: fix link to async\_worker.md (Michael Dawson)
+* [[`5a63f45eda`](https://github.com/nodejs/node-addon-api/commit/5a63f45eda)] - **doc**: First step of error and async doc (NickNaso) [#272](https://github.com/nodejs/node-addon-api/pull/272)
+* [[`9d38f61afb`](https://github.com/nodejs/node-addon-api/commit/9d38f61afb)] - **doc**: New Promise and Reference docs (Jim Schlight) [#243](https://github.com/nodejs/node-addon-api/pull/243)
+* [[`43ff9fa836`](https://github.com/nodejs/node-addon-api/commit/43ff9fa836)] - **doc**: Updated Object documentation (Anisha Rohra) [#254](https://github.com/nodejs/node-addon-api/pull/254)
+* [[`b197f7cc8b`](https://github.com/nodejs/node-addon-api/commit/b197f7cc8b)] - **doc**: minor typos (Nick Soggin) [#248](https://github.com/nodejs/node-addon-api/pull/248)
+* [[`4b8918b352`](https://github.com/nodejs/node-addon-api/commit/4b8918b352)] - Add resource parameters to AsyncWorker constructor (Jinho Bang) [#253](https://github.com/nodejs/node-addon-api/pull/253)
+* [[`1ecf7c19b6`](https://github.com/nodejs/node-addon-api/commit/1ecf7c19b6)] - **doc**: fix wrong link in readme (miloas) [#255](https://github.com/nodejs/node-addon-api/pull/255)
+* [[`a750ed1932`](https://github.com/nodejs/node-addon-api/commit/a750ed1932)] - **release**: updates to metadata for next release (Michael Dawson)
+
+## 2018-05-08 Version 1.3.0, @mhdawson
+
+### Notable changes:
+
+#### Documentation
+- Added documentation for Scopes
+- Added documentation for migration from NAN
+- Update documentation to better explain the use of NODE_ADDON_API
+
+#### API
+- Implement data manipulation methods for dataview
+- Use built-in N-API on Node.js >= 6.14.2
+- Value
+ - Added IsExternal()
+ - IsObject() allow functions
+- String
+ - Fixed initialization of std::string to nullptr
+
+#### Tests
+- Fix test failures on linuxOne and AIX
+- Added basic tests for Scopes
+- Fix MSVC warning C4244 in tests
+
+### Commits
+
+* [386c2aeb74] - test: remove dep on later C++ feature (Michael Dawson) https://github.com/nodejs/node-addon-api/pull/267
+* [10697734da] - Use built-in N-API on Node.js >= 6.14.2 (Gabriel Schulhof)
+* [75086da273] - test: add basic tests and doc for scopes (Michael Dawson) https://github.com/nodejs/node-addon-api/pull/250
+* [341dbd25d5] - doc: update blurb explaining NODE_ADDON_API (Gabriel Schulhof) https://github.com/nodejs/node-addon-api/pull/251
+* [cf6c93e4ee] - don't try to escape null (Michael Dawson) https://github.com/nodejs/node-addon-api/pull/245
+* [15e4b35fc2] - test: fix MSVC warning C4244 in tests (Kyle Farnung) https://github.com/nodejs/node-addon-api/pull/236
+* [7f3ca03b8e] - Create a doc for migration (Sampson Gao) https://github.com/nodejs/node-addon-api/pull/118
+* [0a2177debe] - Fix test failures on linuxOne and AIX (Jinho Bang) https://github.com/nodejs/node-addon-api/pull/232
+* [d567f4b6b5] - Added Napi::Value::IsExternal() (Eric Bickle) https://github.com/nodejs/node-addon-api/pull/227
+* [1b0f0e004a] - Update node-gyp.md (Michele Campus) https://github.com/nodejs/node-addon-api/pull/226
+* [faf19c4f7a] - Fixed initialization of std::string to nullptr (Eric Bickle) https://github.com/nodejs/node-addon-api/pull/228
+* [9c4d321b57] - Implement data manipulation methods for dataview (Jinho Bang) https://github.com/nodejs/node-addon-api/pull/218
+* [5a39fdca6f] - n-api: throw RangeError napi_create_typedarray() (Jinho Bang) https://github.com/nodejs/node-addon-api/pull/216
+* [1376377202] - Make IsObject() allow functions (Jinho Bang) https://github.com/nodejs/node-addon-api/pull/217
+* [673b59d319] - src: Initial implementation of DataView class (Jinho Bang) https://github.com/nodejs/node-addon-api/pull/205
+* [0a899bf1c5] - doc: update indication of latest version (Michael Dawson) https://github.com/nodejs/node-addon-api/pull/211
+* [17c74e5a5e] - n-api: RangeError in napi_create_dataview() (Jinho Bang) https://github.com/nodejs/node-addon-api/pull/214
+* [4058a29989] - n-api: fix memory leak in napi_async_destroy() (Jinho Bang) https://github.com/nodejs/node-addon-api/pull/213
+
+
diff --git a/backend/node_modules/node-addon-api/LICENSE.md b/backend/node_modules/node-addon-api/LICENSE.md
new file mode 100644
index 0000000..e2fad66
--- /dev/null
+++ b/backend/node_modules/node-addon-api/LICENSE.md
@@ -0,0 +1,13 @@
+The MIT License (MIT)
+=====================
+
+Copyright (c) 2017 Node.js API collaborators
+-----------------------------------
+
+*Node.js API collaborators listed at <https://github.com/nodejs/node-addon-api#collaborators>*
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/backend/node_modules/node-addon-api/README.md b/backend/node_modules/node-addon-api/README.md
new file mode 100644
index 0000000..46f0ee5
--- /dev/null
+++ b/backend/node_modules/node-addon-api/README.md
@@ -0,0 +1,293 @@
+NOTE: The default branch has been renamed!
+master is now named main
+
+If you have a local clone, you can update it by running:
+
+```shell
+git branch -m master main
+git fetch origin
+git branch -u origin/main main
+```
+
+# **node-addon-api module**
+This module contains **header-only C++ wrapper classes** which simplify
+the use of the C based [Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)
+provided by Node.js when using C++. It provides a C++ object model
+and exception handling semantics with low overhead.
+
+There are three options for implementing addons: Node-API, nan, or direct
+use of internal V8, libuv and Node.js libraries. Unless there is a need for
+direct access to functionality which is not exposed by Node-API as outlined
+in [C/C++ addons](https://nodejs.org/dist/latest/docs/api/addons.html)
+in Node.js core, use Node-API. Refer to
+[C/C++ addons with Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)
+for more information on Node-API.
+
+Node-API is an ABI stable C interface provided by Node.js for building native
+addons. It is independent from the underlying JavaScript runtime (e.g. V8 or ChakraCore)
+and is maintained as part of Node.js itself. It is intended to insulate
+native addons from changes in the underlying JavaScript engine and allow
+modules compiled for one version to run on later versions of Node.js without
+recompilation.
+
+The `node-addon-api` module, which is not part of Node.js, preserves the benefits
+of the Node-API as it consists only of inline code that depends only on the stable API
+provided by Node-API. As such, modules built against one version of Node.js
+using node-addon-api should run without having to be rebuilt with newer versions
+of Node.js.
+
+It is important to remember that *other* Node.js interfaces such as
+`libuv` (included in a project via `#include <uv.h>`) are not ABI-stable across
+Node.js major versions. Thus, an addon must use Node-API and/or `node-addon-api`
+exclusively and build against a version of Node.js that includes an
+implementation of Node-API (meaning an active LTS version of Node.js) in
+order to benefit from ABI stability across Node.js major versions. Node.js
+provides an [ABI stability guide][] containing a detailed explanation of ABI
+stability in general, and the Node-API ABI stability guarantee in particular.
+
+As new APIs are added to Node-API, node-addon-api must be updated to provide
+wrappers for those new APIs. For this reason node-addon-api provides
+methods that allow callers to obtain the underlying Node-API handles so
+direct calls to Node-API and the use of the objects/methods provided by
+node-addon-api can be used together. For example, in order to be able
+to use an API for which the node-addon-api does not yet provide a wrapper.
+
+APIs exposed by node-addon-api are generally used to create and
+manipulate JavaScript values. Concepts and operations generally map
+to ideas specified in the **ECMA262 Language Specification**.
+
+The [Node-API Resource](https://nodejs.github.io/node-addon-examples/)Â offers an
+excellent orientation and tips for developers just getting started with Node-API
+and node-addon-api.
+
+- **[Setup](#setup)**
+- **[API Documentation](#api)**
+- **[Examples](#examples)**
+- **[Tests](#tests)**
+- **[More resource and info about native Addons](#resources)**
+- **[Badges](#badges)**
+- **[Code of Conduct](CODE_OF_CONDUCT.md)**
+- **[Contributors](#contributors)**
+- **[License](#license)**
+
+## **Current version: 3.2.1**
+
+(See [CHANGELOG.md](CHANGELOG.md) for complete Changelog)
+
+[](https://nodei.co/npm/node-addon-api/) [](https://nodei.co/npm/node-addon-api/)
+
+<a name="setup"></a>
+
+node-addon-api is based on [Node-API](https://nodejs.org/api/n-api.html) and supports using different Node-API versions.
+This allows addons built with it to run with Node.js versions which support the targeted Node-API version.
+**However** the node-addon-api support model is to support only the active LTS Node.js versions. This means that
+every year there will be a new major which drops support for the Node.js LTS version which has gone out of service.
+
+The oldest Node.js version supported by the current version of node-addon-api is Node.js 10.x.
+
+## Setup
+ - [Installation and usage](doc/setup.md)
+ - [node-gyp](doc/node-gyp.md)
+ - [cmake-js](doc/cmake-js.md)
+ - [Conversion tool](doc/conversion-tool.md)
+ - [Checker tool](doc/checker-tool.md)
+ - [Generator](doc/generator.md)
+ - [Prebuild tools](doc/prebuild_tools.md)
+
+<a name="api"></a>
+
+### **API Documentation**
+
+The following is the documentation for node-addon-api.
+
+ - [Full Class Hierarchy](doc/hierarchy.md)
+ - [Addon Structure](doc/addon.md)
+ - Data Types:
+ - [Env](doc/env.md)
+ - [CallbackInfo](doc/callbackinfo.md)
+ - [Reference](doc/reference.md)
+ - [Value](doc/value.md)
+ - [Name](doc/name.md)
+ - [Symbol](doc/symbol.md)
+ - [String](doc/string.md)
+ - [Number](doc/number.md)
+ - [Date](doc/date.md)
+ - [BigInt](doc/bigint.md)
+ - [Boolean](doc/boolean.md)
+ - [External](doc/external.md)
+ - [Object](doc/object.md)
+ - [Array](doc/array.md)
+ - [ObjectReference](doc/object_reference.md)
+ - [PropertyDescriptor](doc/property_descriptor.md)
+ - [Function](doc/function.md)
+ - [FunctionReference](doc/function_reference.md)
+ - [ObjectWrap](doc/object_wrap.md)
+ - [ClassPropertyDescriptor](doc/class_property_descriptor.md)
+ - [Buffer](doc/buffer.md)
+ - [ArrayBuffer](doc/array_buffer.md)
+ - [TypedArray](doc/typed_array.md)
+ - [TypedArrayOf](doc/typed_array_of.md)
+ - [DataView](doc/dataview.md)
+ - [Error Handling](doc/error_handling.md)
+ - [Error](doc/error.md)
+ - [TypeError](doc/type_error.md)
+ - [RangeError](doc/range_error.md)
+ - [Object Lifetime Management](doc/object_lifetime_management.md)
+ - [HandleScope](doc/handle_scope.md)
+ - [EscapableHandleScope](doc/escapable_handle_scope.md)
+ - [Memory Management](doc/memory_management.md)
+ - [Async Operations](doc/async_operations.md)
+ - [AsyncWorker](doc/async_worker.md)
+ - [AsyncContext](doc/async_context.md)
+ - [AsyncWorker Variants](doc/async_worker_variants.md)
+ - [Thread-safe Functions](doc/threadsafe.md)
+ - [ThreadSafeFunction](doc/threadsafe_function.md)
+ - [TypedThreadSafeFunction](doc/typed_threadsafe_function.md)
+ - [Promises](doc/promises.md)
+ - [Version management](doc/version_management.md)
+
+<a name="examples"></a>
+
+### **Examples**
+
+Are you new to **node-addon-api**? Take a look at our **[examples](https://github.com/nodejs/node-addon-examples)**
+
+- **[Hello World](https://github.com/nodejs/node-addon-examples/tree/HEAD/1_hello_world/node-addon-api)**
+- **[Pass arguments to a function](https://github.com/nodejs/node-addon-examples/tree/HEAD/2_function_arguments/node-addon-api)**
+- **[Callbacks](https://github.com/nodejs/node-addon-examples/tree/HEAD/3_callbacks/node-addon-api)**
+- **[Object factory](https://github.com/nodejs/node-addon-examples/tree/HEAD/4_object_factory/node-addon-api)**
+- **[Function factory](https://github.com/nodejs/node-addon-examples/tree/HEAD/5_function_factory/node-addon-api)**
+- **[Wrapping C++ Object](https://github.com/nodejs/node-addon-examples/tree/HEAD/6_object_wrap/node-addon-api)**
+- **[Factory of wrapped object](https://github.com/nodejs/node-addon-examples/tree/HEAD/7_factory_wrap/node-addon-api)**
+- **[Passing wrapped object around](https://github.com/nodejs/node-addon-examples/tree/HEAD/8_passing_wrapped/node-addon-api)**
+
+<a name="tests"></a>
+
+### **Tests**
+
+To run the **node-addon-api** tests do:
+
+```
+npm install
+npm test
+```
+
+To avoid testing the deprecated portions of the API run
+```
+npm install
+npm test --disable-deprecated
+```
+
+To run the tests targeting a specific version of Node-API run
+```
+npm install
+export NAPI_VERSION=X
+npm test --NAPI_VERSION=X
+```
+
+where X is the version of Node-API you want to target.
+
+### **Debug**
+
+To run the **node-addon-api** tests with `--debug` option:
+
+```
+npm run-script dev
+```
+
+If you want faster build, you might use the following option:
+
+```
+npm run-script dev:incremental
+```
+
+Take a look and get inspired by our **[test suite](https://github.com/nodejs/node-addon-api/tree/HEAD/test)**
+
+### **Benchmarks**
+
+You can run the available benchmarks using the following command:
+
+```
+npm run-script benchmark
+```
+
+See [benchmark/README.md](benchmark/README.md) for more details about running and adding benchmarks.
+
+<a name="resources"></a>
+
+### **More resource and info about native Addons**
+- **[C++ Addons](https://nodejs.org/dist/latest/docs/api/addons.html)**
+- **[Node-API](https://nodejs.org/dist/latest/docs/api/n-api.html)**
+- **[Node-API - Next Generation Node API for Native Modules](https://youtu.be/-Oniup60Afs)**
+- **[How We Migrated Realm JavaScript From NAN to Node-API](https://developer.mongodb.com/article/realm-javascript-nan-to-n-api)**
+
+As node-addon-api's core mission is to expose the plain C Node-API as C++
+wrappers, tools that facilitate n-api/node-addon-api providing more
+convenient patterns on developing a Node.js add-ons with n-api/node-addon-api
+can be published to NPM as standalone packages. It is also recommended to tag
+such packages with `node-addon-api` to provide more visibility to the community.
+
+Quick links to NPM searches: [keywords:node-addon-api](https://www.npmjs.com/search?q=keywords%3Anode-addon-api).
+
+<a name="other-bindings"></a>
+
+### **Other bindings**
+
+- **[napi-rs](https://napi.rs)** - (`Rust`)
+
+<a name="badges"></a>
+
+### **Badges**
+
+The use of badges is recommended to indicate the minimum version of Node-API
+required for the module. This helps to determine which Node.js major versions are
+supported. Addon maintainers can consult the [Node-API support matrix][] to determine
+which Node.js versions provide a given Node-API version. The following badges are
+available:
+
+
+
+
+
+
+
+
+
+
+
+## **Contributing**
+
+We love contributions from the community to **node-addon-api**!
+See [CONTRIBUTING.md](CONTRIBUTING.md) for more details on our philosophy around extending this module.
+
+<a name="contributors"></a>
+
+## Team members
+
+### Active
+| Name | GitHub Link |
+| ------------------- | ----------------------------------------------------- |
+| Anna Henningsen | [addaleax](https://github.com/addaleax) |
+| Chengzhong Wu | [legendecas](https://github.com/legendecas) |
+| Gabriel Schulhof | [gabrielschulhof](https://github.com/gabrielschulhof) |
+| Jim Schlight | [jschlight](https://github.com/jschlight) |
+| Michael Dawson | [mhdawson](https://github.com/mhdawson) |
+| Kevin Eady | [KevinEady](https://github.com/KevinEady)
+| Nicola Del Gobbo | [NickNaso](https://github.com/NickNaso) |
+
+### Emeritus
+| Name | GitHub Link |
+| ------------------- | ----------------------------------------------------- |
+| Arunesh Chandra | [aruneshchandra](https://github.com/aruneshchandra) |
+| Benjamin Byholm | [kkoopa](https://github.com/kkoopa) |
+| Jason Ginchereau | [jasongin](https://github.com/jasongin) |
+| Hitesh Kanwathirtha | [digitalinfinity](https://github.com/digitalinfinity) |
+| Sampson Gao | [sampsongao](https://github.com/sampsongao) |
+| Taylor Woll | [boingoing](https://github.com/boingoing) |
+
+<a name="license"></a>
+
+Licensed under [MIT](./LICENSE.md)
+
+[ABI stability guide]: https://nodejs.org/en/docs/guides/abi-stability/
+[Node-API support matrix]: https://nodejs.org/dist/latest/docs/api/n-api.html#n_api_n_api_version_matrix
diff --git a/backend/node_modules/node-addon-api/common.gypi b/backend/node_modules/node-addon-api/common.gypi
new file mode 100644
index 0000000..9be254f
--- /dev/null
+++ b/backend/node_modules/node-addon-api/common.gypi
@@ -0,0 +1,21 @@
+{
+ 'variables': {
+ 'NAPI_VERSION%': "<!(node -p \"process.versions.napi\")",
+ 'disable_deprecated': "<!(node -p \"process.env['npm_config_disable_deprecated']\")"
+ },
+ 'conditions': [
+ ['NAPI_VERSION!=""', { 'defines': ['NAPI_VERSION=<@(NAPI_VERSION)'] } ],
+ ['disable_deprecated=="true"', {
+ 'defines': ['NODE_ADDON_API_DISABLE_DEPRECATED']
+ }],
+ ['OS=="mac"', {
+ 'cflags+': ['-fvisibility=hidden'],
+ 'xcode_settings': {
+ 'OTHER_CFLAGS': ['-fvisibility=hidden']
+ }
+ }]
+ ],
+ 'include_dirs': ["<!(node -p \"require('../').include_dir\")"],
+ 'cflags': [ '-Werror', '-Wall', '-Wextra', '-Wpedantic', '-Wunused-parameter' ],
+ 'cflags_cc': [ '-Werror', '-Wall', '-Wextra', '-Wpedantic', '-Wunused-parameter' ]
+}
diff --git a/backend/node_modules/node-addon-api/except.gypi b/backend/node_modules/node-addon-api/except.gypi
new file mode 100644
index 0000000..1f295d1
--- /dev/null
+++ b/backend/node_modules/node-addon-api/except.gypi
@@ -0,0 +1,16 @@
+{
+ 'defines': [ 'NAPI_CPP_EXCEPTIONS' ],
+ 'cflags!': [ '-fno-exceptions' ],
+ 'cflags_cc!': [ '-fno-exceptions' ],
+ 'msvs_settings': {
+ 'VCCLCompilerTool': {
+ 'ExceptionHandling': 1,
+ 'EnablePREfast': 'true',
+ },
+ },
+ 'xcode_settings': {
+ 'CLANG_CXX_LIBRARY': 'libc++',
+ 'MACOSX_DEPLOYMENT_TARGET': '10.7',
+ 'GCC_ENABLE_CPP_EXCEPTIONS': 'YES',
+ },
+}
diff --git a/backend/node_modules/node-addon-api/index.js b/backend/node_modules/node-addon-api/index.js
new file mode 100644
index 0000000..2fa51c5
--- /dev/null
+++ b/backend/node_modules/node-addon-api/index.js
@@ -0,0 +1,11 @@
+const path = require('path');
+
+const include_dir = path.relative('.', __dirname);
+
+module.exports = {
+ include: `"${__dirname}"`, // deprecated, can be removed as part of 4.0.0
+ include_dir,
+ gyp: path.join(include_dir, 'node_api.gyp:nothing'),
+ isNodeApiBuiltin: true,
+ needsFlag: false
+};
diff --git a/backend/node_modules/node-addon-api/napi-inl.deprecated.h b/backend/node_modules/node-addon-api/napi-inl.deprecated.h
new file mode 100644
index 0000000..51e954c
--- /dev/null
+++ b/backend/node_modules/node-addon-api/napi-inl.deprecated.h
@@ -0,0 +1,192 @@
+#ifndef SRC_NAPI_INL_DEPRECATED_H_
+#define SRC_NAPI_INL_DEPRECATED_H_
+
+////////////////////////////////////////////////////////////////////////////////
+// PropertyDescriptor class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename Getter>
+inline PropertyDescriptor
+PropertyDescriptor::Accessor(const char* utf8name,
+ Getter getter,
+ napi_property_attributes attributes,
+ void* /*data*/) {
+ using CbData = details::CallbackData<Getter, Napi::Value>;
+ // TODO: Delete when the function is destroyed
+ auto callbackData = new CbData({ getter, nullptr });
+
+ return PropertyDescriptor({
+ utf8name,
+ nullptr,
+ nullptr,
+ CbData::Wrapper,
+ nullptr,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(const std::string& utf8name,
+ Getter getter,
+ napi_property_attributes attributes,
+ void* data) {
+ return Accessor(utf8name.c_str(), getter, attributes, data);
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(napi_value name,
+ Getter getter,
+ napi_property_attributes attributes,
+ void* /*data*/) {
+ using CbData = details::CallbackData<Getter, Napi::Value>;
+ // TODO: Delete when the function is destroyed
+ auto callbackData = new CbData({ getter, nullptr });
+
+ return PropertyDescriptor({
+ nullptr,
+ name,
+ nullptr,
+ CbData::Wrapper,
+ nullptr,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Name name,
+ Getter getter,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_value nameValue = name;
+ return PropertyDescriptor::Accessor(nameValue, getter, attributes, data);
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(const char* utf8name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes,
+ void* /*data*/) {
+ using CbData = details::AccessorCallbackData<Getter, Setter>;
+ // TODO: Delete when the function is destroyed
+ auto callbackData = new CbData({ getter, setter, nullptr });
+
+ return PropertyDescriptor({
+ utf8name,
+ nullptr,
+ nullptr,
+ CbData::GetterWrapper,
+ CbData::SetterWrapper,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(const std::string& utf8name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes,
+ void* data) {
+ return Accessor(utf8name.c_str(), getter, setter, attributes, data);
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(napi_value name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes,
+ void* /*data*/) {
+ using CbData = details::AccessorCallbackData<Getter, Setter>;
+ // TODO: Delete when the function is destroyed
+ auto callbackData = new CbData({ getter, setter, nullptr });
+
+ return PropertyDescriptor({
+ nullptr,
+ name,
+ nullptr,
+ CbData::GetterWrapper,
+ CbData::SetterWrapper,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Name name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_value nameValue = name;
+ return PropertyDescriptor::Accessor(nameValue, getter, setter, attributes, data);
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(const char* utf8name,
+ Callable cb,
+ napi_property_attributes attributes,
+ void* /*data*/) {
+ using ReturnType = decltype(cb(CallbackInfo(nullptr, nullptr)));
+ using CbData = details::CallbackData<Callable, ReturnType>;
+ // TODO: Delete when the function is destroyed
+ auto callbackData = new CbData({ cb, nullptr });
+
+ return PropertyDescriptor({
+ utf8name,
+ nullptr,
+ CbData::Wrapper,
+ nullptr,
+ nullptr,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(const std::string& utf8name,
+ Callable cb,
+ napi_property_attributes attributes,
+ void* data) {
+ return Function(utf8name.c_str(), cb, attributes, data);
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(napi_value name,
+ Callable cb,
+ napi_property_attributes attributes,
+ void* /*data*/) {
+ using ReturnType = decltype(cb(CallbackInfo(nullptr, nullptr)));
+ using CbData = details::CallbackData<Callable, ReturnType>;
+ // TODO: Delete when the function is destroyed
+ auto callbackData = new CbData({ cb, nullptr });
+
+ return PropertyDescriptor({
+ nullptr,
+ name,
+ CbData::Wrapper,
+ nullptr,
+ nullptr,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(Name name,
+ Callable cb,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_value nameValue = name;
+ return PropertyDescriptor::Function(nameValue, cb, attributes, data);
+}
+
+#endif // !SRC_NAPI_INL_DEPRECATED_H_
diff --git a/backend/node_modules/node-addon-api/napi-inl.h b/backend/node_modules/node-addon-api/napi-inl.h
new file mode 100644
index 0000000..7e9dd72
--- /dev/null
+++ b/backend/node_modules/node-addon-api/napi-inl.h
@@ -0,0 +1,5671 @@
+#ifndef SRC_NAPI_INL_H_
+#define SRC_NAPI_INL_H_
+
+////////////////////////////////////////////////////////////////////////////////
+// Node-API C++ Wrapper Classes
+//
+// Inline header-only implementations for "Node-API" ABI-stable C APIs for
+// Node.js.
+////////////////////////////////////////////////////////////////////////////////
+
+// Note: Do not include this file directly! Include "napi.h" instead.
+
+#include <algorithm>
+#include <cstring>
+#include <mutex>
+#include <type_traits>
+
+namespace Napi {
+
+// Helpers to handle functions exposed from C++.
+namespace details {
+
+// Attach a data item to an object and delete it when the object gets
+// garbage-collected.
+// TODO: Replace this code with `napi_add_finalizer()` whenever it becomes
+// available on all supported versions of Node.js.
+template <typename FreeType>
+static inline napi_status AttachData(napi_env env,
+ napi_value obj,
+ FreeType* data,
+ napi_finalize finalizer = nullptr,
+ void* hint = nullptr) {
+ napi_status status;
+ if (finalizer == nullptr) {
+ finalizer = [](napi_env /*env*/, void* data, void* /*hint*/) {
+ delete static_cast<FreeType*>(data);
+ };
+ }
+#if (NAPI_VERSION < 5)
+ napi_value symbol, external;
+ status = napi_create_symbol(env, nullptr, &symbol);
+ if (status == napi_ok) {
+ status = napi_create_external(env,
+ data,
+ finalizer,
+ hint,
+ &external);
+ if (status == napi_ok) {
+ napi_property_descriptor desc = {
+ nullptr,
+ symbol,
+ nullptr,
+ nullptr,
+ nullptr,
+ external,
+ napi_default,
+ nullptr
+ };
+ status = napi_define_properties(env, obj, 1, &desc);
+ }
+ }
+#else // NAPI_VERSION >= 5
+ status = napi_add_finalizer(env, obj, data, finalizer, hint, nullptr);
+#endif
+ return status;
+}
+
+// For use in JS to C++ callback wrappers to catch any Napi::Error exceptions
+// and rethrow them as JavaScript exceptions before returning from the callback.
+template <typename Callable>
+inline napi_value WrapCallback(Callable callback) {
+#ifdef NAPI_CPP_EXCEPTIONS
+ try {
+ return callback();
+ } catch (const Error& e) {
+ e.ThrowAsJavaScriptException();
+ return nullptr;
+ }
+#else // NAPI_CPP_EXCEPTIONS
+ // When C++ exceptions are disabled, errors are immediately thrown as JS
+ // exceptions, so there is no need to catch and rethrow them here.
+ return callback();
+#endif // NAPI_CPP_EXCEPTIONS
+}
+
+// For use in JS to C++ void callback wrappers to catch any Napi::Error
+// exceptions and rethrow them as JavaScript exceptions before returning from the
+// callback.
+template <typename Callable>
+inline void WrapVoidCallback(Callable callback) {
+#ifdef NAPI_CPP_EXCEPTIONS
+ try {
+ callback();
+ } catch (const Error& e) {
+ e.ThrowAsJavaScriptException();
+ }
+#else // NAPI_CPP_EXCEPTIONS
+ // When C++ exceptions are disabled, errors are immediately thrown as JS
+ // exceptions, so there is no need to catch and rethrow them here.
+ callback();
+#endif // NAPI_CPP_EXCEPTIONS
+}
+
+template <typename Callable, typename Return>
+struct CallbackData {
+ static inline
+ napi_value Wrapper(napi_env env, napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ CallbackData* callbackData =
+ static_cast<CallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ return callbackData->callback(callbackInfo);
+ });
+ }
+
+ Callable callback;
+ void* data;
+};
+
+template <typename Callable>
+struct CallbackData<Callable, void> {
+ static inline
+ napi_value Wrapper(napi_env env, napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ CallbackData* callbackData =
+ static_cast<CallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ callbackData->callback(callbackInfo);
+ return nullptr;
+ });
+ }
+
+ Callable callback;
+ void* data;
+};
+
+template <void (*Callback)(const CallbackInfo& info)>
+static napi_value
+TemplatedVoidCallback(napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+ return details::WrapCallback([&] {
+ CallbackInfo cbInfo(env, info);
+ Callback(cbInfo);
+ return nullptr;
+ });
+}
+
+template <Napi::Value (*Callback)(const CallbackInfo& info)>
+static napi_value
+TemplatedCallback(napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+ return details::WrapCallback([&] {
+ CallbackInfo cbInfo(env, info);
+ return Callback(cbInfo);
+ });
+}
+
+template <typename T,
+ Napi::Value (T::*UnwrapCallback)(const CallbackInfo& info)>
+static napi_value
+TemplatedInstanceCallback(napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+ return details::WrapCallback([&] {
+ CallbackInfo cbInfo(env, info);
+ T* instance = T::Unwrap(cbInfo.This().As<Object>());
+ return (instance->*UnwrapCallback)(cbInfo);
+ });
+}
+
+template <typename T, void (T::*UnwrapCallback)(const CallbackInfo& info)>
+static napi_value
+TemplatedInstanceVoidCallback(napi_env env,
+ napi_callback_info info) NAPI_NOEXCEPT {
+ return details::WrapCallback([&] {
+ CallbackInfo cbInfo(env, info);
+ T* instance = T::Unwrap(cbInfo.This().As<Object>());
+ (instance->*UnwrapCallback)(cbInfo);
+ return nullptr;
+ });
+}
+
+template <typename T, typename Finalizer, typename Hint = void>
+struct FinalizeData {
+ static inline void Wrapper(napi_env env,
+ void* data,
+ void* finalizeHint) NAPI_NOEXCEPT {
+ WrapVoidCallback([&] {
+ FinalizeData* finalizeData = static_cast<FinalizeData*>(finalizeHint);
+ finalizeData->callback(Env(env), static_cast<T*>(data));
+ delete finalizeData;
+ });
+ }
+
+ static inline void WrapperWithHint(napi_env env,
+ void* data,
+ void* finalizeHint) NAPI_NOEXCEPT {
+ WrapVoidCallback([&] {
+ FinalizeData* finalizeData = static_cast<FinalizeData*>(finalizeHint);
+ finalizeData->callback(Env(env), static_cast<T*>(data), finalizeData->hint);
+ delete finalizeData;
+ });
+ }
+
+ Finalizer callback;
+ Hint* hint;
+};
+
+#if (NAPI_VERSION > 3 && !defined(__wasm32__))
+template <typename ContextType=void,
+ typename Finalizer=std::function<void(Env, void*, ContextType*)>,
+ typename FinalizerDataType=void>
+struct ThreadSafeFinalize {
+ static inline
+ void Wrapper(napi_env env, void* rawFinalizeData, void* /* rawContext */) {
+ if (rawFinalizeData == nullptr)
+ return;
+
+ ThreadSafeFinalize* finalizeData =
+ static_cast<ThreadSafeFinalize*>(rawFinalizeData);
+ finalizeData->callback(Env(env));
+ delete finalizeData;
+ }
+
+ static inline
+ void FinalizeWrapperWithData(napi_env env,
+ void* rawFinalizeData,
+ void* /* rawContext */) {
+ if (rawFinalizeData == nullptr)
+ return;
+
+ ThreadSafeFinalize* finalizeData =
+ static_cast<ThreadSafeFinalize*>(rawFinalizeData);
+ finalizeData->callback(Env(env), finalizeData->data);
+ delete finalizeData;
+ }
+
+ static inline
+ void FinalizeWrapperWithContext(napi_env env,
+ void* rawFinalizeData,
+ void* rawContext) {
+ if (rawFinalizeData == nullptr)
+ return;
+
+ ThreadSafeFinalize* finalizeData =
+ static_cast<ThreadSafeFinalize*>(rawFinalizeData);
+ finalizeData->callback(Env(env), static_cast<ContextType*>(rawContext));
+ delete finalizeData;
+ }
+
+ static inline
+ void FinalizeFinalizeWrapperWithDataAndContext(napi_env env,
+ void* rawFinalizeData,
+ void* rawContext) {
+ if (rawFinalizeData == nullptr)
+ return;
+
+ ThreadSafeFinalize* finalizeData =
+ static_cast<ThreadSafeFinalize*>(rawFinalizeData);
+ finalizeData->callback(Env(env), finalizeData->data,
+ static_cast<ContextType*>(rawContext));
+ delete finalizeData;
+ }
+
+ FinalizerDataType* data;
+ Finalizer callback;
+};
+
+template <typename ContextType, typename DataType, typename CallJs, CallJs call>
+typename std::enable_if<call != nullptr>::type static inline CallJsWrapper(
+ napi_env env, napi_value jsCallback, void* context, void* data) {
+ call(env,
+ Function(env, jsCallback),
+ static_cast<ContextType*>(context),
+ static_cast<DataType*>(data));
+}
+
+template <typename ContextType, typename DataType, typename CallJs, CallJs call>
+typename std::enable_if<call == nullptr>::type static inline CallJsWrapper(
+ napi_env env, napi_value jsCallback, void* /*context*/, void* /*data*/) {
+ if (jsCallback != nullptr) {
+ Function(env, jsCallback).Call(0, nullptr);
+ }
+}
+
+#if NAPI_VERSION > 4
+
+template <typename CallbackType, typename TSFN>
+napi_value DefaultCallbackWrapper(napi_env /*env*/, std::nullptr_t /*cb*/) {
+ return nullptr;
+}
+
+template <typename CallbackType, typename TSFN>
+napi_value DefaultCallbackWrapper(napi_env /*env*/, Napi::Function cb) {
+ return cb;
+}
+
+#else
+template <typename CallbackType, typename TSFN>
+napi_value DefaultCallbackWrapper(napi_env env, Napi::Function cb) {
+ if (cb.IsEmpty()) {
+ return TSFN::EmptyFunctionFactory(env);
+ }
+ return cb;
+}
+#endif // NAPI_VERSION > 4
+#endif // NAPI_VERSION > 3 && !defined(__wasm32__)
+
+template <typename Getter, typename Setter>
+struct AccessorCallbackData {
+ static inline
+ napi_value GetterWrapper(napi_env env, napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ AccessorCallbackData* callbackData =
+ static_cast<AccessorCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ return callbackData->getterCallback(callbackInfo);
+ });
+ }
+
+ static inline
+ napi_value SetterWrapper(napi_env env, napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ AccessorCallbackData* callbackData =
+ static_cast<AccessorCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ callbackData->setterCallback(callbackInfo);
+ return nullptr;
+ });
+ }
+
+ Getter getterCallback;
+ Setter setterCallback;
+ void* data;
+};
+
+} // namespace details
+
+#ifndef NODE_ADDON_API_DISABLE_DEPRECATED
+# include "napi-inl.deprecated.h"
+#endif // !NODE_ADDON_API_DISABLE_DEPRECATED
+
+////////////////////////////////////////////////////////////////////////////////
+// Module registration
+////////////////////////////////////////////////////////////////////////////////
+
+// Register an add-on based on an initializer function.
+#define NODE_API_MODULE(modname, regfunc) \
+ static napi_value __napi_##regfunc(napi_env env, napi_value exports) { \
+ return Napi::RegisterModule(env, exports, regfunc); \
+ } \
+ NAPI_MODULE(modname, __napi_##regfunc)
+
+// Register an add-on based on a subclass of `Addon<T>` with a custom Node.js
+// module name.
+#define NODE_API_NAMED_ADDON(modname, classname) \
+ static napi_value __napi_ ## classname(napi_env env, \
+ napi_value exports) { \
+ return Napi::RegisterModule(env, exports, &classname::Init); \
+ } \
+ NAPI_MODULE(modname, __napi_ ## classname)
+
+// Register an add-on based on a subclass of `Addon<T>` with the Node.js module
+// name given by node-gyp from the `target_name` in binding.gyp.
+#define NODE_API_ADDON(classname) \
+ NODE_API_NAMED_ADDON(NODE_GYP_MODULE_NAME, classname)
+
+// Adapt the NAPI_MODULE registration function:
+// - Wrap the arguments in NAPI wrappers.
+// - Catch any NAPI errors and rethrow as JS exceptions.
+inline napi_value RegisterModule(napi_env env,
+ napi_value exports,
+ ModuleRegisterCallback registerCallback) {
+ return details::WrapCallback([&] {
+ return napi_value(registerCallback(Napi::Env(env),
+ Napi::Object(env, exports)));
+ });
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Env class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Env::Env(napi_env env) : _env(env) {
+}
+
+inline Env::operator napi_env() const {
+ return _env;
+}
+
+inline Object Env::Global() const {
+ napi_value value;
+ napi_status status = napi_get_global(*this, &value);
+ NAPI_THROW_IF_FAILED(*this, status, Object());
+ return Object(*this, value);
+}
+
+inline Value Env::Undefined() const {
+ napi_value value;
+ napi_status status = napi_get_undefined(*this, &value);
+ NAPI_THROW_IF_FAILED(*this, status, Value());
+ return Value(*this, value);
+}
+
+inline Value Env::Null() const {
+ napi_value value;
+ napi_status status = napi_get_null(*this, &value);
+ NAPI_THROW_IF_FAILED(*this, status, Value());
+ return Value(*this, value);
+}
+
+inline bool Env::IsExceptionPending() const {
+ bool result;
+ napi_status status = napi_is_exception_pending(_env, &result);
+ if (status != napi_ok) result = false; // Checking for a pending exception shouldn't throw.
+ return result;
+}
+
+inline Error Env::GetAndClearPendingException() {
+ napi_value value;
+ napi_status status = napi_get_and_clear_last_exception(_env, &value);
+ if (status != napi_ok) {
+ // Don't throw another exception when failing to get the exception!
+ return Error();
+ }
+ return Error(_env, value);
+}
+
+inline Value Env::RunScript(const char* utf8script) {
+ String script = String::New(_env, utf8script);
+ return RunScript(script);
+}
+
+inline Value Env::RunScript(const std::string& utf8script) {
+ return RunScript(utf8script.c_str());
+}
+
+inline Value Env::RunScript(String script) {
+ napi_value result;
+ napi_status status = napi_run_script(_env, script, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Undefined());
+ return Value(_env, result);
+}
+
+#if NAPI_VERSION > 5
+template <typename T, Env::Finalizer<T> fini>
+inline void Env::SetInstanceData(T* data) {
+ napi_status status =
+ napi_set_instance_data(_env, data, [](napi_env env, void* data, void*) {
+ fini(env, static_cast<T*>(data));
+ }, nullptr);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+template <typename DataType,
+ typename HintType,
+ Napi::Env::FinalizerWithHint<DataType, HintType> fini>
+inline void Env::SetInstanceData(DataType* data, HintType* hint) {
+ napi_status status =
+ napi_set_instance_data(_env, data,
+ [](napi_env env, void* data, void* hint) {
+ fini(env, static_cast<DataType*>(data), static_cast<HintType*>(hint));
+ }, hint);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+template <typename T>
+inline T* Env::GetInstanceData() {
+ void* data = nullptr;
+
+ napi_status status = napi_get_instance_data(_env, &data);
+ NAPI_THROW_IF_FAILED(_env, status, nullptr);
+
+ return static_cast<T*>(data);
+}
+
+template <typename T> void Env::DefaultFini(Env, T* data) {
+ delete data;
+}
+
+template <typename DataType, typename HintType>
+void Env::DefaultFiniWithHint(Env, DataType* data, HintType*) {
+ delete data;
+}
+#endif // NAPI_VERSION > 5
+
+////////////////////////////////////////////////////////////////////////////////
+// Value class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Value::Value() : _env(nullptr), _value(nullptr) {
+}
+
+inline Value::Value(napi_env env, napi_value value) : _env(env), _value(value) {
+}
+
+inline Value::operator napi_value() const {
+ return _value;
+}
+
+inline bool Value::operator ==(const Value& other) const {
+ return StrictEquals(other);
+}
+
+inline bool Value::operator !=(const Value& other) const {
+ return !this->operator ==(other);
+}
+
+inline bool Value::StrictEquals(const Value& other) const {
+ bool result;
+ napi_status status = napi_strict_equals(_env, *this, other, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline Napi::Env Value::Env() const {
+ return Napi::Env(_env);
+}
+
+inline bool Value::IsEmpty() const {
+ return _value == nullptr;
+}
+
+inline napi_valuetype Value::Type() const {
+ if (IsEmpty()) {
+ return napi_undefined;
+ }
+
+ napi_valuetype type;
+ napi_status status = napi_typeof(_env, _value, &type);
+ NAPI_THROW_IF_FAILED(_env, status, napi_undefined);
+ return type;
+}
+
+inline bool Value::IsUndefined() const {
+ return Type() == napi_undefined;
+}
+
+inline bool Value::IsNull() const {
+ return Type() == napi_null;
+}
+
+inline bool Value::IsBoolean() const {
+ return Type() == napi_boolean;
+}
+
+inline bool Value::IsNumber() const {
+ return Type() == napi_number;
+}
+
+#if NAPI_VERSION > 5
+inline bool Value::IsBigInt() const {
+ return Type() == napi_bigint;
+}
+#endif // NAPI_VERSION > 5
+
+#if (NAPI_VERSION > 4)
+inline bool Value::IsDate() const {
+ if (IsEmpty()) {
+ return false;
+ }
+
+ bool result;
+ napi_status status = napi_is_date(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+#endif
+
+inline bool Value::IsString() const {
+ return Type() == napi_string;
+}
+
+inline bool Value::IsSymbol() const {
+ return Type() == napi_symbol;
+}
+
+inline bool Value::IsArray() const {
+ if (IsEmpty()) {
+ return false;
+ }
+
+ bool result;
+ napi_status status = napi_is_array(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Value::IsArrayBuffer() const {
+ if (IsEmpty()) {
+ return false;
+ }
+
+ bool result;
+ napi_status status = napi_is_arraybuffer(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Value::IsTypedArray() const {
+ if (IsEmpty()) {
+ return false;
+ }
+
+ bool result;
+ napi_status status = napi_is_typedarray(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Value::IsObject() const {
+ return Type() == napi_object || IsFunction();
+}
+
+inline bool Value::IsFunction() const {
+ return Type() == napi_function;
+}
+
+inline bool Value::IsPromise() const {
+ if (IsEmpty()) {
+ return false;
+ }
+
+ bool result;
+ napi_status status = napi_is_promise(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Value::IsDataView() const {
+ if (IsEmpty()) {
+ return false;
+ }
+
+ bool result;
+ napi_status status = napi_is_dataview(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Value::IsBuffer() const {
+ if (IsEmpty()) {
+ return false;
+ }
+
+ bool result;
+ napi_status status = napi_is_buffer(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Value::IsExternal() const {
+ return Type() == napi_external;
+}
+
+template <typename T>
+inline T Value::As() const {
+ return T(_env, _value);
+}
+
+inline Boolean Value::ToBoolean() const {
+ napi_value result;
+ napi_status status = napi_coerce_to_bool(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Boolean());
+ return Boolean(_env, result);
+}
+
+inline Number Value::ToNumber() const {
+ napi_value result;
+ napi_status status = napi_coerce_to_number(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Number());
+ return Number(_env, result);
+}
+
+inline String Value::ToString() const {
+ napi_value result;
+ napi_status status = napi_coerce_to_string(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, String());
+ return String(_env, result);
+}
+
+inline Object Value::ToObject() const {
+ napi_value result;
+ napi_status status = napi_coerce_to_object(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Object());
+ return Object(_env, result);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Boolean class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Boolean Boolean::New(napi_env env, bool val) {
+ napi_value value;
+ napi_status status = napi_get_boolean(env, val, &value);
+ NAPI_THROW_IF_FAILED(env, status, Boolean());
+ return Boolean(env, value);
+}
+
+inline Boolean::Boolean() : Napi::Value() {
+}
+
+inline Boolean::Boolean(napi_env env, napi_value value) : Napi::Value(env, value) {
+}
+
+inline Boolean::operator bool() const {
+ return Value();
+}
+
+inline bool Boolean::Value() const {
+ bool result;
+ napi_status status = napi_get_value_bool(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Number class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Number Number::New(napi_env env, double val) {
+ napi_value value;
+ napi_status status = napi_create_double(env, val, &value);
+ NAPI_THROW_IF_FAILED(env, status, Number());
+ return Number(env, value);
+}
+
+inline Number::Number() : Value() {
+}
+
+inline Number::Number(napi_env env, napi_value value) : Value(env, value) {
+}
+
+inline Number::operator int32_t() const {
+ return Int32Value();
+}
+
+inline Number::operator uint32_t() const {
+ return Uint32Value();
+}
+
+inline Number::operator int64_t() const {
+ return Int64Value();
+}
+
+inline Number::operator float() const {
+ return FloatValue();
+}
+
+inline Number::operator double() const {
+ return DoubleValue();
+}
+
+inline int32_t Number::Int32Value() const {
+ int32_t result;
+ napi_status status = napi_get_value_int32(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return result;
+}
+
+inline uint32_t Number::Uint32Value() const {
+ uint32_t result;
+ napi_status status = napi_get_value_uint32(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return result;
+}
+
+inline int64_t Number::Int64Value() const {
+ int64_t result;
+ napi_status status = napi_get_value_int64(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return result;
+}
+
+inline float Number::FloatValue() const {
+ return static_cast<float>(DoubleValue());
+}
+
+inline double Number::DoubleValue() const {
+ double result;
+ napi_status status = napi_get_value_double(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return result;
+}
+
+#if NAPI_VERSION > 5
+////////////////////////////////////////////////////////////////////////////////
+// BigInt Class
+////////////////////////////////////////////////////////////////////////////////
+
+inline BigInt BigInt::New(napi_env env, int64_t val) {
+ napi_value value;
+ napi_status status = napi_create_bigint_int64(env, val, &value);
+ NAPI_THROW_IF_FAILED(env, status, BigInt());
+ return BigInt(env, value);
+}
+
+inline BigInt BigInt::New(napi_env env, uint64_t val) {
+ napi_value value;
+ napi_status status = napi_create_bigint_uint64(env, val, &value);
+ NAPI_THROW_IF_FAILED(env, status, BigInt());
+ return BigInt(env, value);
+}
+
+inline BigInt BigInt::New(napi_env env, int sign_bit, size_t word_count, const uint64_t* words) {
+ napi_value value;
+ napi_status status = napi_create_bigint_words(env, sign_bit, word_count, words, &value);
+ NAPI_THROW_IF_FAILED(env, status, BigInt());
+ return BigInt(env, value);
+}
+
+inline BigInt::BigInt() : Value() {
+}
+
+inline BigInt::BigInt(napi_env env, napi_value value) : Value(env, value) {
+}
+
+inline int64_t BigInt::Int64Value(bool* lossless) const {
+ int64_t result;
+ napi_status status = napi_get_value_bigint_int64(
+ _env, _value, &result, lossless);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return result;
+}
+
+inline uint64_t BigInt::Uint64Value(bool* lossless) const {
+ uint64_t result;
+ napi_status status = napi_get_value_bigint_uint64(
+ _env, _value, &result, lossless);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return result;
+}
+
+inline size_t BigInt::WordCount() const {
+ size_t word_count;
+ napi_status status = napi_get_value_bigint_words(
+ _env, _value, nullptr, &word_count, nullptr);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return word_count;
+}
+
+inline void BigInt::ToWords(int* sign_bit, size_t* word_count, uint64_t* words) {
+ napi_status status = napi_get_value_bigint_words(
+ _env, _value, sign_bit, word_count, words);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+#endif // NAPI_VERSION > 5
+
+#if (NAPI_VERSION > 4)
+////////////////////////////////////////////////////////////////////////////////
+// Date Class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Date Date::New(napi_env env, double val) {
+ napi_value value;
+ napi_status status = napi_create_date(env, val, &value);
+ NAPI_THROW_IF_FAILED(env, status, Date());
+ return Date(env, value);
+}
+
+inline Date::Date() : Value() {
+}
+
+inline Date::Date(napi_env env, napi_value value) : Value(env, value) {
+}
+
+inline Date::operator double() const {
+ return ValueOf();
+}
+
+inline double Date::ValueOf() const {
+ double result;
+ napi_status status = napi_get_date_value(
+ _env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return result;
+}
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// Name class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Name::Name() : Value() {
+}
+
+inline Name::Name(napi_env env, napi_value value) : Value(env, value) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// String class
+////////////////////////////////////////////////////////////////////////////////
+
+inline String String::New(napi_env env, const std::string& val) {
+ return String::New(env, val.c_str(), val.size());
+}
+
+inline String String::New(napi_env env, const std::u16string& val) {
+ return String::New(env, val.c_str(), val.size());
+}
+
+inline String String::New(napi_env env, const char* val) {
+ napi_value value;
+ napi_status status = napi_create_string_utf8(env, val, std::strlen(val), &value);
+ NAPI_THROW_IF_FAILED(env, status, String());
+ return String(env, value);
+}
+
+inline String String::New(napi_env env, const char16_t* val) {
+ napi_value value;
+ napi_status status = napi_create_string_utf16(env, val, std::u16string(val).size(), &value);
+ NAPI_THROW_IF_FAILED(env, status, String());
+ return String(env, value);
+}
+
+inline String String::New(napi_env env, const char* val, size_t length) {
+ napi_value value;
+ napi_status status = napi_create_string_utf8(env, val, length, &value);
+ NAPI_THROW_IF_FAILED(env, status, String());
+ return String(env, value);
+}
+
+inline String String::New(napi_env env, const char16_t* val, size_t length) {
+ napi_value value;
+ napi_status status = napi_create_string_utf16(env, val, length, &value);
+ NAPI_THROW_IF_FAILED(env, status, String());
+ return String(env, value);
+}
+
+inline String::String() : Name() {
+}
+
+inline String::String(napi_env env, napi_value value) : Name(env, value) {
+}
+
+inline String::operator std::string() const {
+ return Utf8Value();
+}
+
+inline String::operator std::u16string() const {
+ return Utf16Value();
+}
+
+inline std::string String::Utf8Value() const {
+ size_t length;
+ napi_status status = napi_get_value_string_utf8(_env, _value, nullptr, 0, &length);
+ NAPI_THROW_IF_FAILED(_env, status, "");
+
+ std::string value;
+ value.reserve(length + 1);
+ value.resize(length);
+ status = napi_get_value_string_utf8(_env, _value, &value[0], value.capacity(), nullptr);
+ NAPI_THROW_IF_FAILED(_env, status, "");
+ return value;
+}
+
+inline std::u16string String::Utf16Value() const {
+ size_t length;
+ napi_status status = napi_get_value_string_utf16(_env, _value, nullptr, 0, &length);
+ NAPI_THROW_IF_FAILED(_env, status, NAPI_WIDE_TEXT(""));
+
+ std::u16string value;
+ value.reserve(length + 1);
+ value.resize(length);
+ status = napi_get_value_string_utf16(_env, _value, &value[0], value.capacity(), nullptr);
+ NAPI_THROW_IF_FAILED(_env, status, NAPI_WIDE_TEXT(""));
+ return value;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Symbol class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Symbol Symbol::New(napi_env env, const char* description) {
+ napi_value descriptionValue = description != nullptr ?
+ String::New(env, description) : static_cast<napi_value>(nullptr);
+ return Symbol::New(env, descriptionValue);
+}
+
+inline Symbol Symbol::New(napi_env env, const std::string& description) {
+ napi_value descriptionValue = String::New(env, description);
+ return Symbol::New(env, descriptionValue);
+}
+
+inline Symbol Symbol::New(napi_env env, String description) {
+ napi_value descriptionValue = description;
+ return Symbol::New(env, descriptionValue);
+}
+
+inline Symbol Symbol::New(napi_env env, napi_value description) {
+ napi_value value;
+ napi_status status = napi_create_symbol(env, description, &value);
+ NAPI_THROW_IF_FAILED(env, status, Symbol());
+ return Symbol(env, value);
+}
+
+inline Symbol Symbol::WellKnown(napi_env env, const std::string& name) {
+ return Napi::Env(env).Global().Get("Symbol").As<Object>().Get(name).As<Symbol>();
+}
+
+inline Symbol::Symbol() : Name() {
+}
+
+inline Symbol::Symbol(napi_env env, napi_value value) : Name(env, value) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Automagic value creation
+////////////////////////////////////////////////////////////////////////////////
+
+namespace details {
+template <typename T>
+struct vf_number {
+ static Number From(napi_env env, T value) {
+ return Number::New(env, static_cast<double>(value));
+ }
+};
+
+template<>
+struct vf_number<bool> {
+ static Boolean From(napi_env env, bool value) {
+ return Boolean::New(env, value);
+ }
+};
+
+struct vf_utf8_charp {
+ static String From(napi_env env, const char* value) {
+ return String::New(env, value);
+ }
+};
+
+struct vf_utf16_charp {
+ static String From(napi_env env, const char16_t* value) {
+ return String::New(env, value);
+ }
+};
+struct vf_utf8_string {
+ static String From(napi_env env, const std::string& value) {
+ return String::New(env, value);
+ }
+};
+
+struct vf_utf16_string {
+ static String From(napi_env env, const std::u16string& value) {
+ return String::New(env, value);
+ }
+};
+
+template <typename T>
+struct vf_fallback {
+ static Value From(napi_env env, const T& value) {
+ return Value(env, value);
+ }
+};
+
+template <typename...> struct disjunction : std::false_type {};
+template <typename B> struct disjunction<B> : B {};
+template <typename B, typename... Bs>
+struct disjunction<B, Bs...>
+ : std::conditional<bool(B::value), B, disjunction<Bs...>>::type {};
+
+template <typename T>
+struct can_make_string
+ : disjunction<typename std::is_convertible<T, const char *>::type,
+ typename std::is_convertible<T, const char16_t *>::type,
+ typename std::is_convertible<T, std::string>::type,
+ typename std::is_convertible<T, std::u16string>::type> {};
+}
+
+template <typename T>
+Value Value::From(napi_env env, const T& value) {
+ using Helper = typename std::conditional<
+ std::is_integral<T>::value || std::is_floating_point<T>::value,
+ details::vf_number<T>,
+ typename std::conditional<
+ details::can_make_string<T>::value,
+ String,
+ details::vf_fallback<T>
+ >::type
+ >::type;
+ return Helper::From(env, value);
+}
+
+template <typename T>
+String String::From(napi_env env, const T& value) {
+ struct Dummy {};
+ using Helper = typename std::conditional<
+ std::is_convertible<T, const char*>::value,
+ details::vf_utf8_charp,
+ typename std::conditional<
+ std::is_convertible<T, const char16_t*>::value,
+ details::vf_utf16_charp,
+ typename std::conditional<
+ std::is_convertible<T, std::string>::value,
+ details::vf_utf8_string,
+ typename std::conditional<
+ std::is_convertible<T, std::u16string>::value,
+ details::vf_utf16_string,
+ Dummy
+ >::type
+ >::type
+ >::type
+ >::type;
+ return Helper::From(env, value);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Object class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename Key>
+inline Object::PropertyLValue<Key>::operator Value() const {
+ return Object(_env, _object).Get(_key);
+}
+
+template <typename Key> template <typename ValueType>
+inline Object::PropertyLValue<Key>& Object::PropertyLValue<Key>::operator =(ValueType value) {
+ Object(_env, _object).Set(_key, value);
+ return *this;
+}
+
+template <typename Key>
+inline Object::PropertyLValue<Key>::PropertyLValue(Object object, Key key)
+ : _env(object.Env()), _object(object), _key(key) {}
+
+inline Object Object::New(napi_env env) {
+ napi_value value;
+ napi_status status = napi_create_object(env, &value);
+ NAPI_THROW_IF_FAILED(env, status, Object());
+ return Object(env, value);
+}
+
+inline Object::Object() : Value() {
+}
+
+inline Object::Object(napi_env env, napi_value value) : Value(env, value) {
+}
+
+inline Object::PropertyLValue<std::string> Object::operator [](const char* utf8name) {
+ return PropertyLValue<std::string>(*this, utf8name);
+}
+
+inline Object::PropertyLValue<std::string> Object::operator [](const std::string& utf8name) {
+ return PropertyLValue<std::string>(*this, utf8name);
+}
+
+inline Object::PropertyLValue<uint32_t> Object::operator [](uint32_t index) {
+ return PropertyLValue<uint32_t>(*this, index);
+}
+
+inline Value Object::operator [](const char* utf8name) const {
+ return Get(utf8name);
+}
+
+inline Value Object::operator [](const std::string& utf8name) const {
+ return Get(utf8name);
+}
+
+inline Value Object::operator [](uint32_t index) const {
+ return Get(index);
+}
+
+inline bool Object::Has(napi_value key) const {
+ bool result;
+ napi_status status = napi_has_property(_env, _value, key, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Object::Has(Value key) const {
+ bool result;
+ napi_status status = napi_has_property(_env, _value, key, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Object::Has(const char* utf8name) const {
+ bool result;
+ napi_status status = napi_has_named_property(_env, _value, utf8name, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Object::Has(const std::string& utf8name) const {
+ return Has(utf8name.c_str());
+}
+
+inline bool Object::HasOwnProperty(napi_value key) const {
+ bool result;
+ napi_status status = napi_has_own_property(_env, _value, key, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Object::HasOwnProperty(Value key) const {
+ bool result;
+ napi_status status = napi_has_own_property(_env, _value, key, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Object::HasOwnProperty(const char* utf8name) const {
+ napi_value key;
+ napi_status status = napi_create_string_utf8(_env, utf8name, std::strlen(utf8name), &key);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return HasOwnProperty(key);
+}
+
+inline bool Object::HasOwnProperty(const std::string& utf8name) const {
+ return HasOwnProperty(utf8name.c_str());
+}
+
+inline Value Object::Get(napi_value key) const {
+ napi_value result;
+ napi_status status = napi_get_property(_env, _value, key, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Value());
+ return Value(_env, result);
+}
+
+inline Value Object::Get(Value key) const {
+ napi_value result;
+ napi_status status = napi_get_property(_env, _value, key, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Value());
+ return Value(_env, result);
+}
+
+inline Value Object::Get(const char* utf8name) const {
+ napi_value result;
+ napi_status status = napi_get_named_property(_env, _value, utf8name, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Value());
+ return Value(_env, result);
+}
+
+inline Value Object::Get(const std::string& utf8name) const {
+ return Get(utf8name.c_str());
+}
+
+template <typename ValueType>
+inline bool Object::Set(napi_value key, const ValueType& value) {
+ napi_status status =
+ napi_set_property(_env, _value, key, Value::From(_env, value));
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return true;
+}
+
+template <typename ValueType>
+inline bool Object::Set(Value key, const ValueType& value) {
+ napi_status status =
+ napi_set_property(_env, _value, key, Value::From(_env, value));
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return true;
+}
+
+template <typename ValueType>
+inline bool Object::Set(const char* utf8name, const ValueType& value) {
+ napi_status status =
+ napi_set_named_property(_env, _value, utf8name, Value::From(_env, value));
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return true;
+}
+
+template <typename ValueType>
+inline bool Object::Set(const std::string& utf8name, const ValueType& value) {
+ return Set(utf8name.c_str(), value);
+}
+
+inline bool Object::Delete(napi_value key) {
+ bool result;
+ napi_status status = napi_delete_property(_env, _value, key, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Object::Delete(Value key) {
+ bool result;
+ napi_status status = napi_delete_property(_env, _value, key, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline bool Object::Delete(const char* utf8name) {
+ return Delete(String::New(_env, utf8name));
+}
+
+inline bool Object::Delete(const std::string& utf8name) {
+ return Delete(String::New(_env, utf8name));
+}
+
+inline bool Object::Has(uint32_t index) const {
+ bool result;
+ napi_status status = napi_has_element(_env, _value, index, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline Value Object::Get(uint32_t index) const {
+ napi_value value;
+ napi_status status = napi_get_element(_env, _value, index, &value);
+ NAPI_THROW_IF_FAILED(_env, status, Value());
+ return Value(_env, value);
+}
+
+template <typename ValueType>
+inline bool Object::Set(uint32_t index, const ValueType& value) {
+ napi_status status =
+ napi_set_element(_env, _value, index, Value::From(_env, value));
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return true;
+}
+
+inline bool Object::Delete(uint32_t index) {
+ bool result;
+ napi_status status = napi_delete_element(_env, _value, index, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+inline Array Object::GetPropertyNames() const {
+ napi_value result;
+ napi_status status = napi_get_property_names(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Array());
+ return Array(_env, result);
+}
+
+inline bool Object::DefineProperty(const PropertyDescriptor& property) {
+ napi_status status = napi_define_properties(_env, _value, 1,
+ reinterpret_cast<const napi_property_descriptor*>(&property));
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return true;
+}
+
+inline bool Object::DefineProperties(
+ const std::initializer_list<PropertyDescriptor>& properties) {
+ napi_status status = napi_define_properties(_env, _value, properties.size(),
+ reinterpret_cast<const napi_property_descriptor*>(properties.begin()));
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return true;
+}
+
+inline bool Object::DefineProperties(
+ const std::vector<PropertyDescriptor>& properties) {
+ napi_status status = napi_define_properties(_env, _value, properties.size(),
+ reinterpret_cast<const napi_property_descriptor*>(properties.data()));
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return true;
+}
+
+inline bool Object::InstanceOf(const Function& constructor) const {
+ bool result;
+ napi_status status = napi_instanceof(_env, _value, constructor, &result);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return result;
+}
+
+template <typename Finalizer, typename T>
+inline void Object::AddFinalizer(Finalizer finalizeCallback, T* data) {
+ details::FinalizeData<T, Finalizer>* finalizeData =
+ new details::FinalizeData<T, Finalizer>(
+ {std::move(finalizeCallback), nullptr});
+ napi_status status =
+ details::AttachData(_env,
+ *this,
+ data,
+ details::FinalizeData<T, Finalizer>::Wrapper,
+ finalizeData);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+ }
+}
+
+template <typename Finalizer, typename T, typename Hint>
+inline void Object::AddFinalizer(Finalizer finalizeCallback,
+ T* data,
+ Hint* finalizeHint) {
+ details::FinalizeData<T, Finalizer, Hint>* finalizeData =
+ new details::FinalizeData<T, Finalizer, Hint>(
+ {std::move(finalizeCallback), finalizeHint});
+ napi_status status =
+ details::AttachData(_env,
+ *this,
+ data,
+ details::FinalizeData<T, Finalizer, Hint>::WrapperWithHint,
+ finalizeData);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+ }
+}
+
+#if NAPI_VERSION >= 8
+inline bool Object::Freeze() {
+ napi_status status = napi_object_freeze(_env, _value);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return true;
+}
+
+inline bool Object::Seal() {
+ napi_status status = napi_object_seal(_env, _value);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return true;
+}
+#endif // NAPI_VERSION >= 8
+
+////////////////////////////////////////////////////////////////////////////////
+// External class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline External<T> External<T>::New(napi_env env, T* data) {
+ napi_value value;
+ napi_status status = napi_create_external(env, data, nullptr, nullptr, &value);
+ NAPI_THROW_IF_FAILED(env, status, External());
+ return External(env, value);
+}
+
+template <typename T>
+template <typename Finalizer>
+inline External<T> External<T>::New(napi_env env,
+ T* data,
+ Finalizer finalizeCallback) {
+ napi_value value;
+ details::FinalizeData<T, Finalizer>* finalizeData =
+ new details::FinalizeData<T, Finalizer>(
+ {std::move(finalizeCallback), nullptr});
+ napi_status status = napi_create_external(
+ env,
+ data,
+ details::FinalizeData<T, Finalizer>::Wrapper,
+ finalizeData,
+ &value);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(env, status, External());
+ }
+ return External(env, value);
+}
+
+template <typename T>
+template <typename Finalizer, typename Hint>
+inline External<T> External<T>::New(napi_env env,
+ T* data,
+ Finalizer finalizeCallback,
+ Hint* finalizeHint) {
+ napi_value value;
+ details::FinalizeData<T, Finalizer, Hint>* finalizeData =
+ new details::FinalizeData<T, Finalizer, Hint>(
+ {std::move(finalizeCallback), finalizeHint});
+ napi_status status = napi_create_external(
+ env,
+ data,
+ details::FinalizeData<T, Finalizer, Hint>::WrapperWithHint,
+ finalizeData,
+ &value);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(env, status, External());
+ }
+ return External(env, value);
+}
+
+template <typename T>
+inline External<T>::External() : Value() {
+}
+
+template <typename T>
+inline External<T>::External(napi_env env, napi_value value) : Value(env, value) {
+}
+
+template <typename T>
+inline T* External<T>::Data() const {
+ void* data;
+ napi_status status = napi_get_value_external(_env, _value, &data);
+ NAPI_THROW_IF_FAILED(_env, status, nullptr);
+ return reinterpret_cast<T*>(data);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Array class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Array Array::New(napi_env env) {
+ napi_value value;
+ napi_status status = napi_create_array(env, &value);
+ NAPI_THROW_IF_FAILED(env, status, Array());
+ return Array(env, value);
+}
+
+inline Array Array::New(napi_env env, size_t length) {
+ napi_value value;
+ napi_status status = napi_create_array_with_length(env, length, &value);
+ NAPI_THROW_IF_FAILED(env, status, Array());
+ return Array(env, value);
+}
+
+inline Array::Array() : Object() {
+}
+
+inline Array::Array(napi_env env, napi_value value) : Object(env, value) {
+}
+
+inline uint32_t Array::Length() const {
+ uint32_t result;
+ napi_status status = napi_get_array_length(_env, _value, &result);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return result;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ArrayBuffer class
+////////////////////////////////////////////////////////////////////////////////
+
+inline ArrayBuffer ArrayBuffer::New(napi_env env, size_t byteLength) {
+ napi_value value;
+ void* data;
+ napi_status status = napi_create_arraybuffer(env, byteLength, &data, &value);
+ NAPI_THROW_IF_FAILED(env, status, ArrayBuffer());
+
+ return ArrayBuffer(env, value);
+}
+
+inline ArrayBuffer ArrayBuffer::New(napi_env env,
+ void* externalData,
+ size_t byteLength) {
+ napi_value value;
+ napi_status status = napi_create_external_arraybuffer(
+ env, externalData, byteLength, nullptr, nullptr, &value);
+ NAPI_THROW_IF_FAILED(env, status, ArrayBuffer());
+
+ return ArrayBuffer(env, value);
+}
+
+template <typename Finalizer>
+inline ArrayBuffer ArrayBuffer::New(napi_env env,
+ void* externalData,
+ size_t byteLength,
+ Finalizer finalizeCallback) {
+ napi_value value;
+ details::FinalizeData<void, Finalizer>* finalizeData =
+ new details::FinalizeData<void, Finalizer>(
+ {std::move(finalizeCallback), nullptr});
+ napi_status status = napi_create_external_arraybuffer(
+ env,
+ externalData,
+ byteLength,
+ details::FinalizeData<void, Finalizer>::Wrapper,
+ finalizeData,
+ &value);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(env, status, ArrayBuffer());
+ }
+
+ return ArrayBuffer(env, value);
+}
+
+template <typename Finalizer, typename Hint>
+inline ArrayBuffer ArrayBuffer::New(napi_env env,
+ void* externalData,
+ size_t byteLength,
+ Finalizer finalizeCallback,
+ Hint* finalizeHint) {
+ napi_value value;
+ details::FinalizeData<void, Finalizer, Hint>* finalizeData =
+ new details::FinalizeData<void, Finalizer, Hint>(
+ {std::move(finalizeCallback), finalizeHint});
+ napi_status status = napi_create_external_arraybuffer(
+ env,
+ externalData,
+ byteLength,
+ details::FinalizeData<void, Finalizer, Hint>::WrapperWithHint,
+ finalizeData,
+ &value);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(env, status, ArrayBuffer());
+ }
+
+ return ArrayBuffer(env, value);
+}
+
+inline ArrayBuffer::ArrayBuffer() : Object() {
+}
+
+inline ArrayBuffer::ArrayBuffer(napi_env env, napi_value value)
+ : Object(env, value) {
+}
+
+inline void* ArrayBuffer::Data() {
+ void* data;
+ napi_status status = napi_get_arraybuffer_info(_env, _value, &data, nullptr);
+ NAPI_THROW_IF_FAILED(_env, status, nullptr);
+ return data;
+}
+
+inline size_t ArrayBuffer::ByteLength() {
+ size_t length;
+ napi_status status = napi_get_arraybuffer_info(_env, _value, nullptr, &length);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return length;
+}
+
+#if NAPI_VERSION >= 7
+inline bool ArrayBuffer::IsDetached() const {
+ bool detached;
+ napi_status status = napi_is_detached_arraybuffer(_env, _value, &detached);
+ NAPI_THROW_IF_FAILED(_env, status, false);
+ return detached;
+}
+
+inline void ArrayBuffer::Detach() {
+ napi_status status = napi_detach_arraybuffer(_env, _value);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+#endif // NAPI_VERSION >= 7
+
+////////////////////////////////////////////////////////////////////////////////
+// DataView class
+////////////////////////////////////////////////////////////////////////////////
+inline DataView DataView::New(napi_env env,
+ Napi::ArrayBuffer arrayBuffer) {
+ return New(env, arrayBuffer, 0, arrayBuffer.ByteLength());
+}
+
+inline DataView DataView::New(napi_env env,
+ Napi::ArrayBuffer arrayBuffer,
+ size_t byteOffset) {
+ if (byteOffset > arrayBuffer.ByteLength()) {
+ NAPI_THROW(RangeError::New(env,
+ "Start offset is outside the bounds of the buffer"),
+ DataView());
+ }
+ return New(env, arrayBuffer, byteOffset,
+ arrayBuffer.ByteLength() - byteOffset);
+}
+
+inline DataView DataView::New(napi_env env,
+ Napi::ArrayBuffer arrayBuffer,
+ size_t byteOffset,
+ size_t byteLength) {
+ if (byteOffset + byteLength > arrayBuffer.ByteLength()) {
+ NAPI_THROW(RangeError::New(env, "Invalid DataView length"),
+ DataView());
+ }
+ napi_value value;
+ napi_status status = napi_create_dataview(
+ env, byteLength, arrayBuffer, byteOffset, &value);
+ NAPI_THROW_IF_FAILED(env, status, DataView());
+ return DataView(env, value);
+}
+
+inline DataView::DataView() : Object() {
+}
+
+inline DataView::DataView(napi_env env, napi_value value) : Object(env, value) {
+ napi_status status = napi_get_dataview_info(
+ _env,
+ _value /* dataView */,
+ &_length /* byteLength */,
+ &_data /* data */,
+ nullptr /* arrayBuffer */,
+ nullptr /* byteOffset */);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline Napi::ArrayBuffer DataView::ArrayBuffer() const {
+ napi_value arrayBuffer;
+ napi_status status = napi_get_dataview_info(
+ _env,
+ _value /* dataView */,
+ nullptr /* byteLength */,
+ nullptr /* data */,
+ &arrayBuffer /* arrayBuffer */,
+ nullptr /* byteOffset */);
+ NAPI_THROW_IF_FAILED(_env, status, Napi::ArrayBuffer());
+ return Napi::ArrayBuffer(_env, arrayBuffer);
+}
+
+inline size_t DataView::ByteOffset() const {
+ size_t byteOffset;
+ napi_status status = napi_get_dataview_info(
+ _env,
+ _value /* dataView */,
+ nullptr /* byteLength */,
+ nullptr /* data */,
+ nullptr /* arrayBuffer */,
+ &byteOffset /* byteOffset */);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return byteOffset;
+}
+
+inline size_t DataView::ByteLength() const {
+ return _length;
+}
+
+inline void* DataView::Data() const {
+ return _data;
+}
+
+inline float DataView::GetFloat32(size_t byteOffset) const {
+ return ReadData<float>(byteOffset);
+}
+
+inline double DataView::GetFloat64(size_t byteOffset) const {
+ return ReadData<double>(byteOffset);
+}
+
+inline int8_t DataView::GetInt8(size_t byteOffset) const {
+ return ReadData<int8_t>(byteOffset);
+}
+
+inline int16_t DataView::GetInt16(size_t byteOffset) const {
+ return ReadData<int16_t>(byteOffset);
+}
+
+inline int32_t DataView::GetInt32(size_t byteOffset) const {
+ return ReadData<int32_t>(byteOffset);
+}
+
+inline uint8_t DataView::GetUint8(size_t byteOffset) const {
+ return ReadData<uint8_t>(byteOffset);
+}
+
+inline uint16_t DataView::GetUint16(size_t byteOffset) const {
+ return ReadData<uint16_t>(byteOffset);
+}
+
+inline uint32_t DataView::GetUint32(size_t byteOffset) const {
+ return ReadData<uint32_t>(byteOffset);
+}
+
+inline void DataView::SetFloat32(size_t byteOffset, float value) const {
+ WriteData<float>(byteOffset, value);
+}
+
+inline void DataView::SetFloat64(size_t byteOffset, double value) const {
+ WriteData<double>(byteOffset, value);
+}
+
+inline void DataView::SetInt8(size_t byteOffset, int8_t value) const {
+ WriteData<int8_t>(byteOffset, value);
+}
+
+inline void DataView::SetInt16(size_t byteOffset, int16_t value) const {
+ WriteData<int16_t>(byteOffset, value);
+}
+
+inline void DataView::SetInt32(size_t byteOffset, int32_t value) const {
+ WriteData<int32_t>(byteOffset, value);
+}
+
+inline void DataView::SetUint8(size_t byteOffset, uint8_t value) const {
+ WriteData<uint8_t>(byteOffset, value);
+}
+
+inline void DataView::SetUint16(size_t byteOffset, uint16_t value) const {
+ WriteData<uint16_t>(byteOffset, value);
+}
+
+inline void DataView::SetUint32(size_t byteOffset, uint32_t value) const {
+ WriteData<uint32_t>(byteOffset, value);
+}
+
+template <typename T>
+inline T DataView::ReadData(size_t byteOffset) const {
+ if (byteOffset + sizeof(T) > _length ||
+ byteOffset + sizeof(T) < byteOffset) { // overflow
+ NAPI_THROW(RangeError::New(_env,
+ "Offset is outside the bounds of the DataView"), 0);
+ }
+
+ return *reinterpret_cast<T*>(static_cast<uint8_t*>(_data) + byteOffset);
+}
+
+template <typename T>
+inline void DataView::WriteData(size_t byteOffset, T value) const {
+ if (byteOffset + sizeof(T) > _length ||
+ byteOffset + sizeof(T) < byteOffset) { // overflow
+ NAPI_THROW_VOID(RangeError::New(_env,
+ "Offset is outside the bounds of the DataView"));
+ }
+
+ *reinterpret_cast<T*>(static_cast<uint8_t*>(_data) + byteOffset) = value;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TypedArray class
+////////////////////////////////////////////////////////////////////////////////
+
+inline TypedArray::TypedArray()
+ : Object(), _type(TypedArray::unknown_array_type), _length(0) {
+}
+
+inline TypedArray::TypedArray(napi_env env, napi_value value)
+ : Object(env, value), _type(TypedArray::unknown_array_type), _length(0) {
+}
+
+inline TypedArray::TypedArray(napi_env env,
+ napi_value value,
+ napi_typedarray_type type,
+ size_t length)
+ : Object(env, value), _type(type), _length(length) {
+}
+
+inline napi_typedarray_type TypedArray::TypedArrayType() const {
+ if (_type == TypedArray::unknown_array_type) {
+ napi_status status = napi_get_typedarray_info(_env, _value,
+ &const_cast<TypedArray*>(this)->_type, &const_cast<TypedArray*>(this)->_length,
+ nullptr, nullptr, nullptr);
+ NAPI_THROW_IF_FAILED(_env, status, napi_int8_array);
+ }
+
+ return _type;
+}
+
+inline uint8_t TypedArray::ElementSize() const {
+ switch (TypedArrayType()) {
+ case napi_int8_array:
+ case napi_uint8_array:
+ case napi_uint8_clamped_array:
+ return 1;
+ case napi_int16_array:
+ case napi_uint16_array:
+ return 2;
+ case napi_int32_array:
+ case napi_uint32_array:
+ case napi_float32_array:
+ return 4;
+ case napi_float64_array:
+#if (NAPI_VERSION > 5)
+ case napi_bigint64_array:
+ case napi_biguint64_array:
+#endif // (NAPI_VERSION > 5)
+ return 8;
+ default:
+ return 0;
+ }
+}
+
+inline size_t TypedArray::ElementLength() const {
+ if (_type == TypedArray::unknown_array_type) {
+ napi_status status = napi_get_typedarray_info(_env, _value,
+ &const_cast<TypedArray*>(this)->_type, &const_cast<TypedArray*>(this)->_length,
+ nullptr, nullptr, nullptr);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ }
+
+ return _length;
+}
+
+inline size_t TypedArray::ByteOffset() const {
+ size_t byteOffset;
+ napi_status status = napi_get_typedarray_info(
+ _env, _value, nullptr, nullptr, nullptr, nullptr, &byteOffset);
+ NAPI_THROW_IF_FAILED(_env, status, 0);
+ return byteOffset;
+}
+
+inline size_t TypedArray::ByteLength() const {
+ return ElementSize() * ElementLength();
+}
+
+inline Napi::ArrayBuffer TypedArray::ArrayBuffer() const {
+ napi_value arrayBuffer;
+ napi_status status = napi_get_typedarray_info(
+ _env, _value, nullptr, nullptr, nullptr, &arrayBuffer, nullptr);
+ NAPI_THROW_IF_FAILED(_env, status, Napi::ArrayBuffer());
+ return Napi::ArrayBuffer(_env, arrayBuffer);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// TypedArrayOf<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline TypedArrayOf<T> TypedArrayOf<T>::New(napi_env env,
+ size_t elementLength,
+ napi_typedarray_type type) {
+ Napi::ArrayBuffer arrayBuffer = Napi::ArrayBuffer::New(env, elementLength * sizeof (T));
+ return New(env, elementLength, arrayBuffer, 0, type);
+}
+
+template <typename T>
+inline TypedArrayOf<T> TypedArrayOf<T>::New(napi_env env,
+ size_t elementLength,
+ Napi::ArrayBuffer arrayBuffer,
+ size_t bufferOffset,
+ napi_typedarray_type type) {
+ napi_value value;
+ napi_status status = napi_create_typedarray(
+ env, type, elementLength, arrayBuffer, bufferOffset, &value);
+ NAPI_THROW_IF_FAILED(env, status, TypedArrayOf<T>());
+
+ return TypedArrayOf<T>(
+ env, value, type, elementLength,
+ reinterpret_cast<T*>(reinterpret_cast<uint8_t*>(arrayBuffer.Data()) + bufferOffset));
+}
+
+template <typename T>
+inline TypedArrayOf<T>::TypedArrayOf() : TypedArray(), _data(nullptr) {
+}
+
+template <typename T>
+inline TypedArrayOf<T>::TypedArrayOf(napi_env env, napi_value value)
+ : TypedArray(env, value), _data(nullptr) {
+ napi_status status = napi_ok;
+ if (value != nullptr) {
+ status = napi_get_typedarray_info(
+ _env, _value, &_type, &_length, reinterpret_cast<void**>(&_data), nullptr, nullptr);
+ } else {
+ _type = TypedArrayTypeForPrimitiveType<T>();
+ _length = 0;
+ }
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+template <typename T>
+inline TypedArrayOf<T>::TypedArrayOf(napi_env env,
+ napi_value value,
+ napi_typedarray_type type,
+ size_t length,
+ T* data)
+ : TypedArray(env, value, type, length), _data(data) {
+ if (!(type == TypedArrayTypeForPrimitiveType<T>() ||
+ (type == napi_uint8_clamped_array && std::is_same<T, uint8_t>::value))) {
+ NAPI_THROW_VOID(TypeError::New(env, "Array type must match the template parameter. "
+ "(Uint8 arrays may optionally have the \"clamped\" array type.)"));
+ }
+}
+
+template <typename T>
+inline T& TypedArrayOf<T>::operator [](size_t index) {
+ return _data[index];
+}
+
+template <typename T>
+inline const T& TypedArrayOf<T>::operator [](size_t index) const {
+ return _data[index];
+}
+
+template <typename T>
+inline T* TypedArrayOf<T>::Data() {
+ return _data;
+}
+
+template <typename T>
+inline const T* TypedArrayOf<T>::Data() const {
+ return _data;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Function class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename CbData>
+static inline napi_status
+CreateFunction(napi_env env,
+ const char* utf8name,
+ napi_callback cb,
+ CbData* data,
+ napi_value* result) {
+ napi_status status =
+ napi_create_function(env, utf8name, NAPI_AUTO_LENGTH, cb, data, result);
+ if (status == napi_ok) {
+ status = Napi::details::AttachData(env, *result, data);
+ }
+
+ return status;
+}
+
+template <Function::VoidCallback cb>
+inline Function Function::New(napi_env env, const char* utf8name, void* data) {
+ napi_value result = nullptr;
+ napi_status status = napi_create_function(env,
+ utf8name,
+ NAPI_AUTO_LENGTH,
+ details::TemplatedVoidCallback<cb>,
+ data,
+ &result);
+ NAPI_THROW_IF_FAILED(env, status, Function());
+ return Function(env, result);
+}
+
+template <Function::Callback cb>
+inline Function Function::New(napi_env env, const char* utf8name, void* data) {
+ napi_value result = nullptr;
+ napi_status status = napi_create_function(env,
+ utf8name,
+ NAPI_AUTO_LENGTH,
+ details::TemplatedCallback<cb>,
+ data,
+ &result);
+ NAPI_THROW_IF_FAILED(env, status, Function());
+ return Function(env, result);
+}
+
+template <Function::VoidCallback cb>
+inline Function Function::New(napi_env env,
+ const std::string& utf8name,
+ void* data) {
+ return Function::New<cb>(env, utf8name.c_str(), data);
+}
+
+template <Function::Callback cb>
+inline Function Function::New(napi_env env,
+ const std::string& utf8name,
+ void* data) {
+ return Function::New<cb>(env, utf8name.c_str(), data);
+}
+
+template <typename Callable>
+inline Function Function::New(napi_env env,
+ Callable cb,
+ const char* utf8name,
+ void* data) {
+ using ReturnType = decltype(cb(CallbackInfo(nullptr, nullptr)));
+ using CbData = details::CallbackData<Callable, ReturnType>;
+ auto callbackData = new CbData({ cb, data });
+
+ napi_value value;
+ napi_status status = CreateFunction(env,
+ utf8name,
+ CbData::Wrapper,
+ callbackData,
+ &value);
+ if (status != napi_ok) {
+ delete callbackData;
+ NAPI_THROW_IF_FAILED(env, status, Function());
+ }
+
+ return Function(env, value);
+}
+
+template <typename Callable>
+inline Function Function::New(napi_env env,
+ Callable cb,
+ const std::string& utf8name,
+ void* data) {
+ return New(env, cb, utf8name.c_str(), data);
+}
+
+inline Function::Function() : Object() {
+}
+
+inline Function::Function(napi_env env, napi_value value) : Object(env, value) {
+}
+
+inline Value Function::operator ()(const std::initializer_list<napi_value>& args) const {
+ return Call(Env().Undefined(), args);
+}
+
+inline Value Function::Call(const std::initializer_list<napi_value>& args) const {
+ return Call(Env().Undefined(), args);
+}
+
+inline Value Function::Call(const std::vector<napi_value>& args) const {
+ return Call(Env().Undefined(), args);
+}
+
+inline Value Function::Call(size_t argc, const napi_value* args) const {
+ return Call(Env().Undefined(), argc, args);
+}
+
+inline Value Function::Call(napi_value recv, const std::initializer_list<napi_value>& args) const {
+ return Call(recv, args.size(), args.begin());
+}
+
+inline Value Function::Call(napi_value recv, const std::vector<napi_value>& args) const {
+ return Call(recv, args.size(), args.data());
+}
+
+inline Value Function::Call(napi_value recv, size_t argc, const napi_value* args) const {
+ napi_value result;
+ napi_status status = napi_call_function(
+ _env, recv, _value, argc, args, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Value());
+ return Value(_env, result);
+}
+
+inline Value Function::MakeCallback(
+ napi_value recv,
+ const std::initializer_list<napi_value>& args,
+ napi_async_context context) const {
+ return MakeCallback(recv, args.size(), args.begin(), context);
+}
+
+inline Value Function::MakeCallback(
+ napi_value recv,
+ const std::vector<napi_value>& args,
+ napi_async_context context) const {
+ return MakeCallback(recv, args.size(), args.data(), context);
+}
+
+inline Value Function::MakeCallback(
+ napi_value recv,
+ size_t argc,
+ const napi_value* args,
+ napi_async_context context) const {
+ napi_value result;
+ napi_status status = napi_make_callback(
+ _env, context, recv, _value, argc, args, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Value());
+ return Value(_env, result);
+}
+
+inline Object Function::New(const std::initializer_list<napi_value>& args) const {
+ return New(args.size(), args.begin());
+}
+
+inline Object Function::New(const std::vector<napi_value>& args) const {
+ return New(args.size(), args.data());
+}
+
+inline Object Function::New(size_t argc, const napi_value* args) const {
+ napi_value result;
+ napi_status status = napi_new_instance(
+ _env, _value, argc, args, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Object());
+ return Object(_env, result);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Promise class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Promise::Deferred Promise::Deferred::New(napi_env env) {
+ return Promise::Deferred(env);
+}
+
+inline Promise::Deferred::Deferred(napi_env env) : _env(env) {
+ napi_status status = napi_create_promise(_env, &_deferred, &_promise);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline Promise Promise::Deferred::Promise() const {
+ return Napi::Promise(_env, _promise);
+}
+
+inline Napi::Env Promise::Deferred::Env() const {
+ return Napi::Env(_env);
+}
+
+inline void Promise::Deferred::Resolve(napi_value value) const {
+ napi_status status = napi_resolve_deferred(_env, _deferred, value);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline void Promise::Deferred::Reject(napi_value value) const {
+ napi_status status = napi_reject_deferred(_env, _deferred, value);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline Promise::Promise(napi_env env, napi_value value) : Object(env, value) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Buffer<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline Buffer<T> Buffer<T>::New(napi_env env, size_t length) {
+ napi_value value;
+ void* data;
+ napi_status status = napi_create_buffer(env, length * sizeof (T), &data, &value);
+ NAPI_THROW_IF_FAILED(env, status, Buffer<T>());
+ return Buffer(env, value, length, static_cast<T*>(data));
+}
+
+template <typename T>
+inline Buffer<T> Buffer<T>::New(napi_env env, T* data, size_t length) {
+ napi_value value;
+ napi_status status = napi_create_external_buffer(
+ env, length * sizeof (T), data, nullptr, nullptr, &value);
+ NAPI_THROW_IF_FAILED(env, status, Buffer<T>());
+ return Buffer(env, value, length, data);
+}
+
+template <typename T>
+template <typename Finalizer>
+inline Buffer<T> Buffer<T>::New(napi_env env,
+ T* data,
+ size_t length,
+ Finalizer finalizeCallback) {
+ napi_value value;
+ details::FinalizeData<T, Finalizer>* finalizeData =
+ new details::FinalizeData<T, Finalizer>(
+ {std::move(finalizeCallback), nullptr});
+ napi_status status = napi_create_external_buffer(
+ env,
+ length * sizeof (T),
+ data,
+ details::FinalizeData<T, Finalizer>::Wrapper,
+ finalizeData,
+ &value);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(env, status, Buffer());
+ }
+ return Buffer(env, value, length, data);
+}
+
+template <typename T>
+template <typename Finalizer, typename Hint>
+inline Buffer<T> Buffer<T>::New(napi_env env,
+ T* data,
+ size_t length,
+ Finalizer finalizeCallback,
+ Hint* finalizeHint) {
+ napi_value value;
+ details::FinalizeData<T, Finalizer, Hint>* finalizeData =
+ new details::FinalizeData<T, Finalizer, Hint>(
+ {std::move(finalizeCallback), finalizeHint});
+ napi_status status = napi_create_external_buffer(
+ env,
+ length * sizeof (T),
+ data,
+ details::FinalizeData<T, Finalizer, Hint>::WrapperWithHint,
+ finalizeData,
+ &value);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(env, status, Buffer());
+ }
+ return Buffer(env, value, length, data);
+}
+
+template <typename T>
+inline Buffer<T> Buffer<T>::Copy(napi_env env, const T* data, size_t length) {
+ napi_value value;
+ napi_status status = napi_create_buffer_copy(
+ env, length * sizeof (T), data, nullptr, &value);
+ NAPI_THROW_IF_FAILED(env, status, Buffer<T>());
+ return Buffer<T>(env, value);
+}
+
+template <typename T>
+inline Buffer<T>::Buffer() : Uint8Array(), _length(0), _data(nullptr) {
+}
+
+template <typename T>
+inline Buffer<T>::Buffer(napi_env env, napi_value value)
+ : Uint8Array(env, value), _length(0), _data(nullptr) {
+}
+
+template <typename T>
+inline Buffer<T>::Buffer(napi_env env, napi_value value, size_t length, T* data)
+ : Uint8Array(env, value), _length(length), _data(data) {
+}
+
+template <typename T>
+inline size_t Buffer<T>::Length() const {
+ EnsureInfo();
+ return _length;
+}
+
+template <typename T>
+inline T* Buffer<T>::Data() const {
+ EnsureInfo();
+ return _data;
+}
+
+template <typename T>
+inline void Buffer<T>::EnsureInfo() const {
+ // The Buffer instance may have been constructed from a napi_value whose
+ // length/data are not yet known. Fetch and cache these values just once,
+ // since they can never change during the lifetime of the Buffer.
+ if (_data == nullptr) {
+ size_t byteLength;
+ void* voidData;
+ napi_status status = napi_get_buffer_info(_env, _value, &voidData, &byteLength);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+ _length = byteLength / sizeof (T);
+ _data = static_cast<T*>(voidData);
+ }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Error class
+////////////////////////////////////////////////////////////////////////////////
+
+inline Error Error::New(napi_env env) {
+ napi_status status;
+ napi_value error = nullptr;
+ bool is_exception_pending;
+ const napi_extended_error_info* info;
+
+ // We must retrieve the last error info before doing anything else, because
+ // doing anything else will replace the last error info.
+ status = napi_get_last_error_info(env, &info);
+ NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_get_last_error_info");
+
+ status = napi_is_exception_pending(env, &is_exception_pending);
+ NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_is_exception_pending");
+
+ // A pending exception takes precedence over any internal error status.
+ if (is_exception_pending) {
+ status = napi_get_and_clear_last_exception(env, &error);
+ NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_get_and_clear_last_exception");
+ }
+ else {
+ const char* error_message = info->error_message != nullptr ?
+ info->error_message : "Error in native callback";
+
+ napi_value message;
+ status = napi_create_string_utf8(
+ env,
+ error_message,
+ std::strlen(error_message),
+ &message);
+ NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_create_string_utf8");
+
+ switch (info->error_code) {
+ case napi_object_expected:
+ case napi_string_expected:
+ case napi_boolean_expected:
+ case napi_number_expected:
+ status = napi_create_type_error(env, nullptr, message, &error);
+ break;
+ default:
+ status = napi_create_error(env, nullptr, message, &error);
+ break;
+ }
+ NAPI_FATAL_IF_FAILED(status, "Error::New", "napi_create_error");
+ }
+
+ return Error(env, error);
+}
+
+inline Error Error::New(napi_env env, const char* message) {
+ return Error::New<Error>(env, message, std::strlen(message), napi_create_error);
+}
+
+inline Error Error::New(napi_env env, const std::string& message) {
+ return Error::New<Error>(env, message.c_str(), message.size(), napi_create_error);
+}
+
+inline NAPI_NO_RETURN void Error::Fatal(const char* location, const char* message) {
+ napi_fatal_error(location, NAPI_AUTO_LENGTH, message, NAPI_AUTO_LENGTH);
+}
+
+inline Error::Error() : ObjectReference() {
+}
+
+inline Error::Error(napi_env env, napi_value value) : ObjectReference(env, nullptr) {
+ if (value != nullptr) {
+ napi_status status = napi_create_reference(env, value, 1, &_ref);
+
+ // Avoid infinite recursion in the failure case.
+ // Don't try to construct & throw another Error instance.
+ NAPI_FATAL_IF_FAILED(status, "Error::Error", "napi_create_reference");
+ }
+}
+
+inline Error::Error(Error&& other) : ObjectReference(std::move(other)) {
+}
+
+inline Error& Error::operator =(Error&& other) {
+ static_cast<Reference<Object>*>(this)->operator=(std::move(other));
+ return *this;
+}
+
+inline Error::Error(const Error& other) : ObjectReference(other) {
+}
+
+inline Error& Error::operator =(const Error& other) {
+ Reset();
+
+ _env = other.Env();
+ HandleScope scope(_env);
+
+ napi_value value = other.Value();
+ if (value != nullptr) {
+ napi_status status = napi_create_reference(_env, value, 1, &_ref);
+ NAPI_THROW_IF_FAILED(_env, status, *this);
+ }
+
+ return *this;
+}
+
+inline const std::string& Error::Message() const NAPI_NOEXCEPT {
+ if (_message.size() == 0 && _env != nullptr) {
+#ifdef NAPI_CPP_EXCEPTIONS
+ try {
+ _message = Get("message").As<String>();
+ }
+ catch (...) {
+ // Catch all errors here, to include e.g. a std::bad_alloc from
+ // the std::string::operator=, because this method may not throw.
+ }
+#else // NAPI_CPP_EXCEPTIONS
+ _message = Get("message").As<String>();
+#endif // NAPI_CPP_EXCEPTIONS
+ }
+ return _message;
+}
+
+inline void Error::ThrowAsJavaScriptException() const {
+ HandleScope scope(_env);
+ if (!IsEmpty()) {
+
+ // We intentionally don't use `NAPI_THROW_*` macros here to ensure
+ // that there is no possible recursion as `ThrowAsJavaScriptException`
+ // is part of `NAPI_THROW_*` macro definition for noexcept.
+
+ napi_status status = napi_throw(_env, Value());
+
+#ifdef NAPI_CPP_EXCEPTIONS
+ if (status != napi_ok) {
+ throw Error::New(_env);
+ }
+#else // NAPI_CPP_EXCEPTIONS
+ NAPI_FATAL_IF_FAILED(status, "Error::ThrowAsJavaScriptException", "napi_throw");
+#endif // NAPI_CPP_EXCEPTIONS
+ }
+}
+
+#ifdef NAPI_CPP_EXCEPTIONS
+
+inline const char* Error::what() const NAPI_NOEXCEPT {
+ return Message().c_str();
+}
+
+#endif // NAPI_CPP_EXCEPTIONS
+
+template <typename TError>
+inline TError Error::New(napi_env env,
+ const char* message,
+ size_t length,
+ create_error_fn create_error) {
+ napi_value str;
+ napi_status status = napi_create_string_utf8(env, message, length, &str);
+ NAPI_THROW_IF_FAILED(env, status, TError());
+
+ napi_value error;
+ status = create_error(env, nullptr, str, &error);
+ NAPI_THROW_IF_FAILED(env, status, TError());
+
+ return TError(env, error);
+}
+
+inline TypeError TypeError::New(napi_env env, const char* message) {
+ return Error::New<TypeError>(env, message, std::strlen(message), napi_create_type_error);
+}
+
+inline TypeError TypeError::New(napi_env env, const std::string& message) {
+ return Error::New<TypeError>(env, message.c_str(), message.size(), napi_create_type_error);
+}
+
+inline TypeError::TypeError() : Error() {
+}
+
+inline TypeError::TypeError(napi_env env, napi_value value) : Error(env, value) {
+}
+
+inline RangeError RangeError::New(napi_env env, const char* message) {
+ return Error::New<RangeError>(env, message, std::strlen(message), napi_create_range_error);
+}
+
+inline RangeError RangeError::New(napi_env env, const std::string& message) {
+ return Error::New<RangeError>(env, message.c_str(), message.size(), napi_create_range_error);
+}
+
+inline RangeError::RangeError() : Error() {
+}
+
+inline RangeError::RangeError(napi_env env, napi_value value) : Error(env, value) {
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Reference<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline Reference<T> Reference<T>::New(const T& value, uint32_t initialRefcount) {
+ napi_env env = value.Env();
+ napi_value val = value;
+
+ if (val == nullptr) {
+ return Reference<T>(env, nullptr);
+ }
+
+ napi_ref ref;
+ napi_status status = napi_create_reference(env, value, initialRefcount, &ref);
+ NAPI_THROW_IF_FAILED(env, status, Reference<T>());
+
+ return Reference<T>(env, ref);
+}
+
+
+template <typename T>
+inline Reference<T>::Reference() : _env(nullptr), _ref(nullptr), _suppressDestruct(false) {
+}
+
+template <typename T>
+inline Reference<T>::Reference(napi_env env, napi_ref ref)
+ : _env(env), _ref(ref), _suppressDestruct(false) {
+}
+
+template <typename T>
+inline Reference<T>::~Reference() {
+ if (_ref != nullptr) {
+ if (!_suppressDestruct) {
+ napi_delete_reference(_env, _ref);
+ }
+
+ _ref = nullptr;
+ }
+}
+
+template <typename T>
+inline Reference<T>::Reference(Reference<T>&& other)
+ : _env(other._env), _ref(other._ref), _suppressDestruct(other._suppressDestruct) {
+ other._env = nullptr;
+ other._ref = nullptr;
+ other._suppressDestruct = false;
+}
+
+template <typename T>
+inline Reference<T>& Reference<T>::operator =(Reference<T>&& other) {
+ Reset();
+ _env = other._env;
+ _ref = other._ref;
+ _suppressDestruct = other._suppressDestruct;
+ other._env = nullptr;
+ other._ref = nullptr;
+ other._suppressDestruct = false;
+ return *this;
+}
+
+template <typename T>
+inline Reference<T>::Reference(const Reference<T>& other)
+ : _env(other._env), _ref(nullptr), _suppressDestruct(false) {
+ HandleScope scope(_env);
+
+ napi_value value = other.Value();
+ if (value != nullptr) {
+ // Copying is a limited scenario (currently only used for Error object) and always creates a
+ // strong reference to the given value even if the incoming reference is weak.
+ napi_status status = napi_create_reference(_env, value, 1, &_ref);
+ NAPI_FATAL_IF_FAILED(status, "Reference<T>::Reference", "napi_create_reference");
+ }
+}
+
+template <typename T>
+inline Reference<T>::operator napi_ref() const {
+ return _ref;
+}
+
+template <typename T>
+inline bool Reference<T>::operator ==(const Reference<T> &other) const {
+ HandleScope scope(_env);
+ return this->Value().StrictEquals(other.Value());
+}
+
+template <typename T>
+inline bool Reference<T>::operator !=(const Reference<T> &other) const {
+ return !this->operator ==(other);
+}
+
+template <typename T>
+inline Napi::Env Reference<T>::Env() const {
+ return Napi::Env(_env);
+}
+
+template <typename T>
+inline bool Reference<T>::IsEmpty() const {
+ return _ref == nullptr;
+}
+
+template <typename T>
+inline T Reference<T>::Value() const {
+ if (_ref == nullptr) {
+ return T(_env, nullptr);
+ }
+
+ napi_value value;
+ napi_status status = napi_get_reference_value(_env, _ref, &value);
+ NAPI_THROW_IF_FAILED(_env, status, T());
+ return T(_env, value);
+}
+
+template <typename T>
+inline uint32_t Reference<T>::Ref() {
+ uint32_t result;
+ napi_status status = napi_reference_ref(_env, _ref, &result);
+ NAPI_THROW_IF_FAILED(_env, status, 1);
+ return result;
+}
+
+template <typename T>
+inline uint32_t Reference<T>::Unref() {
+ uint32_t result;
+ napi_status status = napi_reference_unref(_env, _ref, &result);
+ NAPI_THROW_IF_FAILED(_env, status, 1);
+ return result;
+}
+
+template <typename T>
+inline void Reference<T>::Reset() {
+ if (_ref != nullptr) {
+ napi_status status = napi_delete_reference(_env, _ref);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+ _ref = nullptr;
+ }
+}
+
+template <typename T>
+inline void Reference<T>::Reset(const T& value, uint32_t refcount) {
+ Reset();
+ _env = value.Env();
+
+ napi_value val = value;
+ if (val != nullptr) {
+ napi_status status = napi_create_reference(_env, value, refcount, &_ref);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+ }
+}
+
+template <typename T>
+inline void Reference<T>::SuppressDestruct() {
+ _suppressDestruct = true;
+}
+
+template <typename T>
+inline Reference<T> Weak(T value) {
+ return Reference<T>::New(value, 0);
+}
+
+inline ObjectReference Weak(Object value) {
+ return Reference<Object>::New(value, 0);
+}
+
+inline FunctionReference Weak(Function value) {
+ return Reference<Function>::New(value, 0);
+}
+
+template <typename T>
+inline Reference<T> Persistent(T value) {
+ return Reference<T>::New(value, 1);
+}
+
+inline ObjectReference Persistent(Object value) {
+ return Reference<Object>::New(value, 1);
+}
+
+inline FunctionReference Persistent(Function value) {
+ return Reference<Function>::New(value, 1);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ObjectReference class
+////////////////////////////////////////////////////////////////////////////////
+
+inline ObjectReference::ObjectReference(): Reference<Object>() {
+}
+
+inline ObjectReference::ObjectReference(napi_env env, napi_ref ref): Reference<Object>(env, ref) {
+}
+
+inline ObjectReference::ObjectReference(Reference<Object>&& other)
+ : Reference<Object>(std::move(other)) {
+}
+
+inline ObjectReference& ObjectReference::operator =(Reference<Object>&& other) {
+ static_cast<Reference<Object>*>(this)->operator=(std::move(other));
+ return *this;
+}
+
+inline ObjectReference::ObjectReference(ObjectReference&& other)
+ : Reference<Object>(std::move(other)) {
+}
+
+inline ObjectReference& ObjectReference::operator =(ObjectReference&& other) {
+ static_cast<Reference<Object>*>(this)->operator=(std::move(other));
+ return *this;
+}
+
+inline ObjectReference::ObjectReference(const ObjectReference& other)
+ : Reference<Object>(other) {
+}
+
+inline Napi::Value ObjectReference::Get(const char* utf8name) const {
+ EscapableHandleScope scope(_env);
+ return scope.Escape(Value().Get(utf8name));
+}
+
+inline Napi::Value ObjectReference::Get(const std::string& utf8name) const {
+ EscapableHandleScope scope(_env);
+ return scope.Escape(Value().Get(utf8name));
+}
+
+inline bool ObjectReference::Set(const char* utf8name, napi_value value) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, value);
+}
+
+inline bool ObjectReference::Set(const char* utf8name, Napi::Value value) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, value);
+}
+
+inline bool ObjectReference::Set(const char* utf8name, const char* utf8value) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, utf8value);
+}
+
+inline bool ObjectReference::Set(const char* utf8name, bool boolValue) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, boolValue);
+}
+
+inline bool ObjectReference::Set(const char* utf8name, double numberValue) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, numberValue);
+}
+
+inline bool ObjectReference::Set(const std::string& utf8name,
+ napi_value value) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, value);
+}
+
+inline bool ObjectReference::Set(const std::string& utf8name,
+ Napi::Value value) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, value);
+}
+
+inline bool ObjectReference::Set(const std::string& utf8name,
+ std::string& utf8value) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, utf8value);
+}
+
+inline bool ObjectReference::Set(const std::string& utf8name, bool boolValue) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, boolValue);
+}
+
+inline bool ObjectReference::Set(const std::string& utf8name,
+ double numberValue) {
+ HandleScope scope(_env);
+ return Value().Set(utf8name, numberValue);
+}
+
+inline Napi::Value ObjectReference::Get(uint32_t index) const {
+ EscapableHandleScope scope(_env);
+ return scope.Escape(Value().Get(index));
+}
+
+inline bool ObjectReference::Set(uint32_t index, napi_value value) {
+ HandleScope scope(_env);
+ return Value().Set(index, value);
+}
+
+inline bool ObjectReference::Set(uint32_t index, Napi::Value value) {
+ HandleScope scope(_env);
+ return Value().Set(index, value);
+}
+
+inline bool ObjectReference::Set(uint32_t index, const char* utf8value) {
+ HandleScope scope(_env);
+ return Value().Set(index, utf8value);
+}
+
+inline bool ObjectReference::Set(uint32_t index, const std::string& utf8value) {
+ HandleScope scope(_env);
+ return Value().Set(index, utf8value);
+}
+
+inline bool ObjectReference::Set(uint32_t index, bool boolValue) {
+ HandleScope scope(_env);
+ return Value().Set(index, boolValue);
+}
+
+inline bool ObjectReference::Set(uint32_t index, double numberValue) {
+ HandleScope scope(_env);
+ return Value().Set(index, numberValue);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// FunctionReference class
+////////////////////////////////////////////////////////////////////////////////
+
+inline FunctionReference::FunctionReference(): Reference<Function>() {
+}
+
+inline FunctionReference::FunctionReference(napi_env env, napi_ref ref)
+ : Reference<Function>(env, ref) {
+}
+
+inline FunctionReference::FunctionReference(Reference<Function>&& other)
+ : Reference<Function>(std::move(other)) {
+}
+
+inline FunctionReference& FunctionReference::operator =(Reference<Function>&& other) {
+ static_cast<Reference<Function>*>(this)->operator=(std::move(other));
+ return *this;
+}
+
+inline FunctionReference::FunctionReference(FunctionReference&& other)
+ : Reference<Function>(std::move(other)) {
+}
+
+inline FunctionReference& FunctionReference::operator =(FunctionReference&& other) {
+ static_cast<Reference<Function>*>(this)->operator=(std::move(other));
+ return *this;
+}
+
+inline Napi::Value FunctionReference::operator ()(
+ const std::initializer_list<napi_value>& args) const {
+ EscapableHandleScope scope(_env);
+ return scope.Escape(Value()(args));
+}
+
+inline Napi::Value FunctionReference::Call(const std::initializer_list<napi_value>& args) const {
+ EscapableHandleScope scope(_env);
+ Napi::Value result = Value().Call(args);
+ if (scope.Env().IsExceptionPending()) {
+ return Value();
+ }
+ return scope.Escape(result);
+}
+
+inline Napi::Value FunctionReference::Call(const std::vector<napi_value>& args) const {
+ EscapableHandleScope scope(_env);
+ Napi::Value result = Value().Call(args);
+ if (scope.Env().IsExceptionPending()) {
+ return Value();
+ }
+ return scope.Escape(result);
+}
+
+inline Napi::Value FunctionReference::Call(
+ napi_value recv, const std::initializer_list<napi_value>& args) const {
+ EscapableHandleScope scope(_env);
+ Napi::Value result = Value().Call(recv, args);
+ if (scope.Env().IsExceptionPending()) {
+ return Value();
+ }
+ return scope.Escape(result);
+}
+
+inline Napi::Value FunctionReference::Call(
+ napi_value recv, const std::vector<napi_value>& args) const {
+ EscapableHandleScope scope(_env);
+ Napi::Value result = Value().Call(recv, args);
+ if (scope.Env().IsExceptionPending()) {
+ return Value();
+ }
+ return scope.Escape(result);
+}
+
+inline Napi::Value FunctionReference::Call(
+ napi_value recv, size_t argc, const napi_value* args) const {
+ EscapableHandleScope scope(_env);
+ Napi::Value result = Value().Call(recv, argc, args);
+ if (scope.Env().IsExceptionPending()) {
+ return Value();
+ }
+ return scope.Escape(result);
+}
+
+inline Napi::Value FunctionReference::MakeCallback(
+ napi_value recv,
+ const std::initializer_list<napi_value>& args,
+ napi_async_context context) const {
+ EscapableHandleScope scope(_env);
+ Napi::Value result = Value().MakeCallback(recv, args, context);
+ if (scope.Env().IsExceptionPending()) {
+ return Value();
+ }
+ return scope.Escape(result);
+}
+
+inline Napi::Value FunctionReference::MakeCallback(
+ napi_value recv,
+ const std::vector<napi_value>& args,
+ napi_async_context context) const {
+ EscapableHandleScope scope(_env);
+ Napi::Value result = Value().MakeCallback(recv, args, context);
+ if (scope.Env().IsExceptionPending()) {
+ return Value();
+ }
+ return scope.Escape(result);
+}
+
+inline Napi::Value FunctionReference::MakeCallback(
+ napi_value recv,
+ size_t argc,
+ const napi_value* args,
+ napi_async_context context) const {
+ EscapableHandleScope scope(_env);
+ Napi::Value result = Value().MakeCallback(recv, argc, args, context);
+ if (scope.Env().IsExceptionPending()) {
+ return Value();
+ }
+ return scope.Escape(result);
+}
+
+inline Object FunctionReference::New(const std::initializer_list<napi_value>& args) const {
+ EscapableHandleScope scope(_env);
+ return scope.Escape(Value().New(args)).As<Object>();
+}
+
+inline Object FunctionReference::New(const std::vector<napi_value>& args) const {
+ EscapableHandleScope scope(_env);
+ return scope.Escape(Value().New(args)).As<Object>();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// CallbackInfo class
+////////////////////////////////////////////////////////////////////////////////
+
+inline CallbackInfo::CallbackInfo(napi_env env, napi_callback_info info)
+ : _env(env), _info(info), _this(nullptr), _dynamicArgs(nullptr), _data(nullptr) {
+ _argc = _staticArgCount;
+ _argv = _staticArgs;
+ napi_status status = napi_get_cb_info(env, info, &_argc, _argv, &_this, &_data);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+
+ if (_argc > _staticArgCount) {
+ // Use either a fixed-size array (on the stack) or a dynamically-allocated
+ // array (on the heap) depending on the number of args.
+ _dynamicArgs = new napi_value[_argc];
+ _argv = _dynamicArgs;
+
+ status = napi_get_cb_info(env, info, &_argc, _argv, nullptr, nullptr);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+ }
+}
+
+inline CallbackInfo::~CallbackInfo() {
+ if (_dynamicArgs != nullptr) {
+ delete[] _dynamicArgs;
+ }
+}
+
+inline Value CallbackInfo::NewTarget() const {
+ napi_value newTarget;
+ napi_status status = napi_get_new_target(_env, _info, &newTarget);
+ NAPI_THROW_IF_FAILED(_env, status, Value());
+ return Value(_env, newTarget);
+}
+
+inline bool CallbackInfo::IsConstructCall() const {
+ return !NewTarget().IsEmpty();
+}
+
+inline Napi::Env CallbackInfo::Env() const {
+ return Napi::Env(_env);
+}
+
+inline size_t CallbackInfo::Length() const {
+ return _argc;
+}
+
+inline const Value CallbackInfo::operator [](size_t index) const {
+ return index < _argc ? Value(_env, _argv[index]) : Env().Undefined();
+}
+
+inline Value CallbackInfo::This() const {
+ if (_this == nullptr) {
+ return Env().Undefined();
+ }
+ return Object(_env, _this);
+}
+
+inline void* CallbackInfo::Data() const {
+ return _data;
+}
+
+inline void CallbackInfo::SetData(void* data) {
+ _data = data;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// PropertyDescriptor class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename PropertyDescriptor::GetterCallback Getter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(const char* utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+
+ desc.utf8name = utf8name;
+ desc.getter = details::TemplatedCallback<Getter>;
+ desc.attributes = attributes;
+ desc.data = data;
+
+ return desc;
+}
+
+template <typename PropertyDescriptor::GetterCallback Getter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(const std::string& utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+ return Accessor<Getter>(utf8name.c_str(), attributes, data);
+}
+
+template <typename PropertyDescriptor::GetterCallback Getter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(Name name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+
+ desc.name = name;
+ desc.getter = details::TemplatedCallback<Getter>;
+ desc.attributes = attributes;
+ desc.data = data;
+
+ return desc;
+}
+
+template <
+typename PropertyDescriptor::GetterCallback Getter,
+typename PropertyDescriptor::SetterCallback Setter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(const char* utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+
+ napi_property_descriptor desc = napi_property_descriptor();
+
+ desc.utf8name = utf8name;
+ desc.getter = details::TemplatedCallback<Getter>;
+ desc.setter = details::TemplatedVoidCallback<Setter>;
+ desc.attributes = attributes;
+ desc.data = data;
+
+ return desc;
+}
+
+template <
+typename PropertyDescriptor::GetterCallback Getter,
+typename PropertyDescriptor::SetterCallback Setter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(const std::string& utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+ return Accessor<Getter, Setter>(utf8name.c_str(), attributes, data);
+}
+
+template <
+typename PropertyDescriptor::GetterCallback Getter,
+typename PropertyDescriptor::SetterCallback Setter>
+PropertyDescriptor
+PropertyDescriptor::Accessor(Name name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+
+ desc.name = name;
+ desc.getter = details::TemplatedCallback<Getter>;
+ desc.setter = details::TemplatedVoidCallback<Setter>;
+ desc.attributes = attributes;
+ desc.data = data;
+
+ return desc;
+}
+
+template <typename Getter>
+inline PropertyDescriptor
+PropertyDescriptor::Accessor(Napi::Env env,
+ Napi::Object object,
+ const char* utf8name,
+ Getter getter,
+ napi_property_attributes attributes,
+ void* data) {
+ using CbData = details::CallbackData<Getter, Napi::Value>;
+ auto callbackData = new CbData({ getter, data });
+
+ napi_status status = AttachData(env, object, callbackData);
+ if (status != napi_ok) {
+ delete callbackData;
+ NAPI_THROW_IF_FAILED(env, status, napi_property_descriptor());
+ }
+
+ return PropertyDescriptor({
+ utf8name,
+ nullptr,
+ nullptr,
+ CbData::Wrapper,
+ nullptr,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+ Napi::Object object,
+ const std::string& utf8name,
+ Getter getter,
+ napi_property_attributes attributes,
+ void* data) {
+ return Accessor(env, object, utf8name.c_str(), getter, attributes, data);
+}
+
+template <typename Getter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+ Napi::Object object,
+ Name name,
+ Getter getter,
+ napi_property_attributes attributes,
+ void* data) {
+ using CbData = details::CallbackData<Getter, Napi::Value>;
+ auto callbackData = new CbData({ getter, data });
+
+ napi_status status = AttachData(env, object, callbackData);
+ if (status != napi_ok) {
+ delete callbackData;
+ NAPI_THROW_IF_FAILED(env, status, napi_property_descriptor());
+ }
+
+ return PropertyDescriptor({
+ nullptr,
+ name,
+ nullptr,
+ CbData::Wrapper,
+ nullptr,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+ Napi::Object object,
+ const char* utf8name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes,
+ void* data) {
+ using CbData = details::AccessorCallbackData<Getter, Setter>;
+ auto callbackData = new CbData({ getter, setter, data });
+
+ napi_status status = AttachData(env, object, callbackData);
+ if (status != napi_ok) {
+ delete callbackData;
+ NAPI_THROW_IF_FAILED(env, status, napi_property_descriptor());
+ }
+
+ return PropertyDescriptor({
+ utf8name,
+ nullptr,
+ nullptr,
+ CbData::GetterWrapper,
+ CbData::SetterWrapper,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+ Napi::Object object,
+ const std::string& utf8name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes,
+ void* data) {
+ return Accessor(env, object, utf8name.c_str(), getter, setter, attributes, data);
+}
+
+template <typename Getter, typename Setter>
+inline PropertyDescriptor PropertyDescriptor::Accessor(Napi::Env env,
+ Napi::Object object,
+ Name name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes,
+ void* data) {
+ using CbData = details::AccessorCallbackData<Getter, Setter>;
+ auto callbackData = new CbData({ getter, setter, data });
+
+ napi_status status = AttachData(env, object, callbackData);
+ if (status != napi_ok) {
+ delete callbackData;
+ NAPI_THROW_IF_FAILED(env, status, napi_property_descriptor());
+ }
+
+ return PropertyDescriptor({
+ nullptr,
+ name,
+ nullptr,
+ CbData::GetterWrapper,
+ CbData::SetterWrapper,
+ nullptr,
+ attributes,
+ callbackData
+ });
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(Napi::Env env,
+ Napi::Object /*object*/,
+ const char* utf8name,
+ Callable cb,
+ napi_property_attributes attributes,
+ void* data) {
+ return PropertyDescriptor({
+ utf8name,
+ nullptr,
+ nullptr,
+ nullptr,
+ nullptr,
+ Napi::Function::New(env, cb, utf8name, data),
+ attributes,
+ nullptr
+ });
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(Napi::Env env,
+ Napi::Object object,
+ const std::string& utf8name,
+ Callable cb,
+ napi_property_attributes attributes,
+ void* data) {
+ return Function(env, object, utf8name.c_str(), cb, attributes, data);
+}
+
+template <typename Callable>
+inline PropertyDescriptor PropertyDescriptor::Function(Napi::Env env,
+ Napi::Object /*object*/,
+ Name name,
+ Callable cb,
+ napi_property_attributes attributes,
+ void* data) {
+ return PropertyDescriptor({
+ nullptr,
+ name,
+ nullptr,
+ nullptr,
+ nullptr,
+ Napi::Function::New(env, cb, nullptr, data),
+ attributes,
+ nullptr
+ });
+}
+
+inline PropertyDescriptor PropertyDescriptor::Value(const char* utf8name,
+ napi_value value,
+ napi_property_attributes attributes) {
+ return PropertyDescriptor({
+ utf8name, nullptr, nullptr, nullptr, nullptr, value, attributes, nullptr
+ });
+}
+
+inline PropertyDescriptor PropertyDescriptor::Value(const std::string& utf8name,
+ napi_value value,
+ napi_property_attributes attributes) {
+ return Value(utf8name.c_str(), value, attributes);
+}
+
+inline PropertyDescriptor PropertyDescriptor::Value(napi_value name,
+ napi_value value,
+ napi_property_attributes attributes) {
+ return PropertyDescriptor({
+ nullptr, name, nullptr, nullptr, nullptr, value, attributes, nullptr
+ });
+}
+
+inline PropertyDescriptor PropertyDescriptor::Value(Name name,
+ Napi::Value value,
+ napi_property_attributes attributes) {
+ napi_value nameValue = name;
+ napi_value valueValue = value;
+ return PropertyDescriptor::Value(nameValue, valueValue, attributes);
+}
+
+inline PropertyDescriptor::PropertyDescriptor(napi_property_descriptor desc)
+ : _desc(desc) {
+}
+
+inline PropertyDescriptor::operator napi_property_descriptor&() {
+ return _desc;
+}
+
+inline PropertyDescriptor::operator const napi_property_descriptor&() const {
+ return _desc;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// InstanceWrap<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline void InstanceWrap<T>::AttachPropData(napi_env env,
+ napi_value value,
+ const napi_property_descriptor* prop) {
+ napi_status status;
+ if (!(prop->attributes & napi_static)) {
+ if (prop->method == T::InstanceVoidMethodCallbackWrapper) {
+ status = Napi::details::AttachData(env,
+ value,
+ static_cast<InstanceVoidMethodCallbackData*>(prop->data));
+ NAPI_THROW_IF_FAILED_VOID(env, status);
+ } else if (prop->method == T::InstanceMethodCallbackWrapper) {
+ status = Napi::details::AttachData(env,
+ value,
+ static_cast<InstanceMethodCallbackData*>(prop->data));
+ NAPI_THROW_IF_FAILED_VOID(env, status);
+ } else if (prop->getter == T::InstanceGetterCallbackWrapper ||
+ prop->setter == T::InstanceSetterCallbackWrapper) {
+ status = Napi::details::AttachData(env,
+ value,
+ static_cast<InstanceAccessorCallbackData*>(prop->data));
+ NAPI_THROW_IF_FAILED_VOID(env, status);
+ }
+ }
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+ const char* utf8name,
+ InstanceVoidMethodCallback method,
+ napi_property_attributes attributes,
+ void* data) {
+ InstanceVoidMethodCallbackData* callbackData =
+ new InstanceVoidMethodCallbackData({ method, data});
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.method = T::InstanceVoidMethodCallbackWrapper;
+ desc.data = callbackData;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+ const char* utf8name,
+ InstanceMethodCallback method,
+ napi_property_attributes attributes,
+ void* data) {
+ InstanceMethodCallbackData* callbackData = new InstanceMethodCallbackData({ method, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.method = T::InstanceMethodCallbackWrapper;
+ desc.data = callbackData;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+ Symbol name,
+ InstanceVoidMethodCallback method,
+ napi_property_attributes attributes,
+ void* data) {
+ InstanceVoidMethodCallbackData* callbackData =
+ new InstanceVoidMethodCallbackData({ method, data});
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.method = T::InstanceVoidMethodCallbackWrapper;
+ desc.data = callbackData;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+ Symbol name,
+ InstanceMethodCallback method,
+ napi_property_attributes attributes,
+ void* data) {
+ InstanceMethodCallbackData* callbackData = new InstanceMethodCallbackData({ method, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.method = T::InstanceMethodCallbackWrapper;
+ desc.data = callbackData;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceVoidMethodCallback method>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+ const char* utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.method = details::TemplatedInstanceVoidCallback<T, method>;
+ desc.data = data;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceMethodCallback method>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+ const char* utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.method = details::TemplatedInstanceCallback<T, method>;
+ desc.data = data;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceVoidMethodCallback method>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+ Symbol name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.method = details::TemplatedInstanceVoidCallback<T, method>;
+ desc.data = data;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceMethodCallback method>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceMethod(
+ Symbol name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.method = details::TemplatedInstanceCallback<T, method>;
+ desc.data = data;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceAccessor(
+ const char* utf8name,
+ InstanceGetterCallback getter,
+ InstanceSetterCallback setter,
+ napi_property_attributes attributes,
+ void* data) {
+ InstanceAccessorCallbackData* callbackData =
+ new InstanceAccessorCallbackData({ getter, setter, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.getter = getter != nullptr ? T::InstanceGetterCallbackWrapper : nullptr;
+ desc.setter = setter != nullptr ? T::InstanceSetterCallbackWrapper : nullptr;
+ desc.data = callbackData;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceAccessor(
+ Symbol name,
+ InstanceGetterCallback getter,
+ InstanceSetterCallback setter,
+ napi_property_attributes attributes,
+ void* data) {
+ InstanceAccessorCallbackData* callbackData =
+ new InstanceAccessorCallbackData({ getter, setter, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.getter = getter != nullptr ? T::InstanceGetterCallbackWrapper : nullptr;
+ desc.setter = setter != nullptr ? T::InstanceSetterCallbackWrapper : nullptr;
+ desc.data = callbackData;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceGetterCallback getter,
+ typename InstanceWrap<T>::InstanceSetterCallback setter>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceAccessor(
+ const char* utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.getter = details::TemplatedInstanceCallback<T, getter>;
+ desc.setter = This::WrapSetter(This::SetterTag<setter>());
+ desc.data = data;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceGetterCallback getter,
+ typename InstanceWrap<T>::InstanceSetterCallback setter>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceAccessor(
+ Symbol name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.getter = details::TemplatedInstanceCallback<T, getter>;
+ desc.setter = This::WrapSetter(This::SetterTag<setter>());
+ desc.data = data;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceValue(
+ const char* utf8name,
+ Napi::Value value,
+ napi_property_attributes attributes) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.value = value;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> InstanceWrap<T>::InstanceValue(
+ Symbol name,
+ Napi::Value value,
+ napi_property_attributes attributes) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.value = value;
+ desc.attributes = attributes;
+ return desc;
+}
+
+template <typename T>
+inline napi_value InstanceWrap<T>::InstanceVoidMethodCallbackWrapper(
+ napi_env env,
+ napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ InstanceVoidMethodCallbackData* callbackData =
+ reinterpret_cast<InstanceVoidMethodCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ T* instance = T::Unwrap(callbackInfo.This().As<Object>());
+ auto cb = callbackData->callback;
+ (instance->*cb)(callbackInfo);
+ return nullptr;
+ });
+}
+
+template <typename T>
+inline napi_value InstanceWrap<T>::InstanceMethodCallbackWrapper(
+ napi_env env,
+ napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ InstanceMethodCallbackData* callbackData =
+ reinterpret_cast<InstanceMethodCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ T* instance = T::Unwrap(callbackInfo.This().As<Object>());
+ auto cb = callbackData->callback;
+ return (instance->*cb)(callbackInfo);
+ });
+}
+
+template <typename T>
+inline napi_value InstanceWrap<T>::InstanceGetterCallbackWrapper(
+ napi_env env,
+ napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ InstanceAccessorCallbackData* callbackData =
+ reinterpret_cast<InstanceAccessorCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ T* instance = T::Unwrap(callbackInfo.This().As<Object>());
+ auto cb = callbackData->getterCallback;
+ return (instance->*cb)(callbackInfo);
+ });
+}
+
+template <typename T>
+inline napi_value InstanceWrap<T>::InstanceSetterCallbackWrapper(
+ napi_env env,
+ napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ InstanceAccessorCallbackData* callbackData =
+ reinterpret_cast<InstanceAccessorCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ T* instance = T::Unwrap(callbackInfo.This().As<Object>());
+ auto cb = callbackData->setterCallback;
+ (instance->*cb)(callbackInfo, callbackInfo[0]);
+ return nullptr;
+ });
+}
+
+template <typename T>
+template <typename InstanceWrap<T>::InstanceSetterCallback method>
+inline napi_value InstanceWrap<T>::WrappedMethod(
+ napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+ return details::WrapCallback([&] {
+ const CallbackInfo cbInfo(env, info);
+ T* instance = T::Unwrap(cbInfo.This().As<Object>());
+ (instance->*method)(cbInfo, cbInfo[0]);
+ return nullptr;
+ });
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// ObjectWrap<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline ObjectWrap<T>::ObjectWrap(const Napi::CallbackInfo& callbackInfo) {
+ napi_env env = callbackInfo.Env();
+ napi_value wrapper = callbackInfo.This();
+ napi_status status;
+ napi_ref ref;
+ T* instance = static_cast<T*>(this);
+ status = napi_wrap(env, wrapper, instance, FinalizeCallback, nullptr, &ref);
+ NAPI_THROW_IF_FAILED_VOID(env, status);
+
+ Reference<Object>* instanceRef = instance;
+ *instanceRef = Reference<Object>(env, ref);
+}
+
+template <typename T>
+inline ObjectWrap<T>::~ObjectWrap() {
+ // If the JS object still exists at this point, remove the finalizer added
+ // through `napi_wrap()`.
+ if (!IsEmpty()) {
+ Object object = Value();
+ // It is not valid to call `napi_remove_wrap()` with an empty `object`.
+ // This happens e.g. during garbage collection.
+ if (!object.IsEmpty() && _construction_failed) {
+ napi_remove_wrap(Env(), object, nullptr);
+ }
+ }
+}
+
+template<typename T>
+inline T* ObjectWrap<T>::Unwrap(Object wrapper) {
+ T* unwrapped;
+ napi_status status = napi_unwrap(wrapper.Env(), wrapper, reinterpret_cast<void**>(&unwrapped));
+ NAPI_THROW_IF_FAILED(wrapper.Env(), status, nullptr);
+ return unwrapped;
+}
+
+template <typename T>
+inline Function
+ObjectWrap<T>::DefineClass(Napi::Env env,
+ const char* utf8name,
+ const size_t props_count,
+ const napi_property_descriptor* descriptors,
+ void* data) {
+ napi_status status;
+ std::vector<napi_property_descriptor> props(props_count);
+
+ // We copy the descriptors to a local array because before defining the class
+ // we must replace static method property descriptors with value property
+ // descriptors such that the value is a function-valued `napi_value` created
+ // with `CreateFunction()`.
+ //
+ // This replacement could be made for instance methods as well, but V8 aborts
+ // if we do that, because it expects methods defined on the prototype template
+ // to have `FunctionTemplate`s.
+ for (size_t index = 0; index < props_count; index++) {
+ props[index] = descriptors[index];
+ napi_property_descriptor* prop = &props[index];
+ if (prop->method == T::StaticMethodCallbackWrapper) {
+ status = CreateFunction(env,
+ utf8name,
+ prop->method,
+ static_cast<StaticMethodCallbackData*>(prop->data),
+ &(prop->value));
+ NAPI_THROW_IF_FAILED(env, status, Function());
+ prop->method = nullptr;
+ prop->data = nullptr;
+ } else if (prop->method == T::StaticVoidMethodCallbackWrapper) {
+ status = CreateFunction(env,
+ utf8name,
+ prop->method,
+ static_cast<StaticVoidMethodCallbackData*>(prop->data),
+ &(prop->value));
+ NAPI_THROW_IF_FAILED(env, status, Function());
+ prop->method = nullptr;
+ prop->data = nullptr;
+ }
+ }
+
+ napi_value value;
+ status = napi_define_class(env,
+ utf8name,
+ NAPI_AUTO_LENGTH,
+ T::ConstructorCallbackWrapper,
+ data,
+ props_count,
+ props.data(),
+ &value);
+ NAPI_THROW_IF_FAILED(env, status, Function());
+
+ // After defining the class we iterate once more over the property descriptors
+ // and attach the data associated with accessors and instance methods to the
+ // newly created JavaScript class.
+ for (size_t idx = 0; idx < props_count; idx++) {
+ const napi_property_descriptor* prop = &props[idx];
+
+ if (prop->getter == T::StaticGetterCallbackWrapper ||
+ prop->setter == T::StaticSetterCallbackWrapper) {
+ status = Napi::details::AttachData(env,
+ value,
+ static_cast<StaticAccessorCallbackData*>(prop->data));
+ NAPI_THROW_IF_FAILED(env, status, Function());
+ } else {
+ // InstanceWrap<T>::AttachPropData is responsible for attaching the data
+ // of instance methods and accessors.
+ T::AttachPropData(env, value, prop);
+ }
+ }
+
+ return Function(env, value);
+}
+
+template <typename T>
+inline Function ObjectWrap<T>::DefineClass(
+ Napi::Env env,
+ const char* utf8name,
+ const std::initializer_list<ClassPropertyDescriptor<T>>& properties,
+ void* data) {
+ return DefineClass(env,
+ utf8name,
+ properties.size(),
+ reinterpret_cast<const napi_property_descriptor*>(properties.begin()),
+ data);
+}
+
+template <typename T>
+inline Function ObjectWrap<T>::DefineClass(
+ Napi::Env env,
+ const char* utf8name,
+ const std::vector<ClassPropertyDescriptor<T>>& properties,
+ void* data) {
+ return DefineClass(env,
+ utf8name,
+ properties.size(),
+ reinterpret_cast<const napi_property_descriptor*>(properties.data()),
+ data);
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+ const char* utf8name,
+ StaticVoidMethodCallback method,
+ napi_property_attributes attributes,
+ void* data) {
+ StaticVoidMethodCallbackData* callbackData = new StaticVoidMethodCallbackData({ method, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.method = T::StaticVoidMethodCallbackWrapper;
+ desc.data = callbackData;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+ const char* utf8name,
+ StaticMethodCallback method,
+ napi_property_attributes attributes,
+ void* data) {
+ StaticMethodCallbackData* callbackData = new StaticMethodCallbackData({ method, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.method = T::StaticMethodCallbackWrapper;
+ desc.data = callbackData;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+ Symbol name,
+ StaticVoidMethodCallback method,
+ napi_property_attributes attributes,
+ void* data) {
+ StaticVoidMethodCallbackData* callbackData = new StaticVoidMethodCallbackData({ method, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.method = T::StaticVoidMethodCallbackWrapper;
+ desc.data = callbackData;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+ Symbol name,
+ StaticMethodCallback method,
+ napi_property_attributes attributes,
+ void* data) {
+ StaticMethodCallbackData* callbackData = new StaticMethodCallbackData({ method, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.method = T::StaticMethodCallbackWrapper;
+ desc.data = callbackData;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticVoidMethodCallback method>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+ const char* utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.method = details::TemplatedVoidCallback<method>;
+ desc.data = data;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticVoidMethodCallback method>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+ Symbol name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.method = details::TemplatedVoidCallback<method>;
+ desc.data = data;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticMethodCallback method>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+ const char* utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.method = details::TemplatedCallback<method>;
+ desc.data = data;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticMethodCallback method>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticMethod(
+ Symbol name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.method = details::TemplatedCallback<method>;
+ desc.data = data;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticAccessor(
+ const char* utf8name,
+ StaticGetterCallback getter,
+ StaticSetterCallback setter,
+ napi_property_attributes attributes,
+ void* data) {
+ StaticAccessorCallbackData* callbackData =
+ new StaticAccessorCallbackData({ getter, setter, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.getter = getter != nullptr ? T::StaticGetterCallbackWrapper : nullptr;
+ desc.setter = setter != nullptr ? T::StaticSetterCallbackWrapper : nullptr;
+ desc.data = callbackData;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticAccessor(
+ Symbol name,
+ StaticGetterCallback getter,
+ StaticSetterCallback setter,
+ napi_property_attributes attributes,
+ void* data) {
+ StaticAccessorCallbackData* callbackData =
+ new StaticAccessorCallbackData({ getter, setter, data });
+
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.getter = getter != nullptr ? T::StaticGetterCallbackWrapper : nullptr;
+ desc.setter = setter != nullptr ? T::StaticSetterCallbackWrapper : nullptr;
+ desc.data = callbackData;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticGetterCallback getter,
+ typename ObjectWrap<T>::StaticSetterCallback setter>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticAccessor(
+ const char* utf8name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.getter = details::TemplatedCallback<getter>;
+ desc.setter = This::WrapStaticSetter(This::StaticSetterTag<setter>());
+ desc.data = data;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticGetterCallback getter,
+ typename ObjectWrap<T>::StaticSetterCallback setter>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticAccessor(
+ Symbol name,
+ napi_property_attributes attributes,
+ void* data) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.getter = details::TemplatedCallback<getter>;
+ desc.setter = This::WrapStaticSetter(This::StaticSetterTag<setter>());
+ desc.data = data;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticValue(const char* utf8name,
+ Napi::Value value, napi_property_attributes attributes) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.utf8name = utf8name;
+ desc.value = value;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+inline ClassPropertyDescriptor<T> ObjectWrap<T>::StaticValue(Symbol name,
+ Napi::Value value, napi_property_attributes attributes) {
+ napi_property_descriptor desc = napi_property_descriptor();
+ desc.name = name;
+ desc.value = value;
+ desc.attributes = static_cast<napi_property_attributes>(attributes | napi_static);
+ return desc;
+}
+
+template <typename T>
+inline void ObjectWrap<T>::Finalize(Napi::Env /*env*/) {}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::ConstructorCallbackWrapper(
+ napi_env env,
+ napi_callback_info info) {
+ napi_value new_target;
+ napi_status status = napi_get_new_target(env, info, &new_target);
+ if (status != napi_ok) return nullptr;
+
+ bool isConstructCall = (new_target != nullptr);
+ if (!isConstructCall) {
+ napi_throw_type_error(env, nullptr, "Class constructors cannot be invoked without 'new'");
+ return nullptr;
+ }
+
+ napi_value wrapper = details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ T* instance = new T(callbackInfo);
+#ifdef NAPI_CPP_EXCEPTIONS
+ instance->_construction_failed = false;
+#else
+ if (callbackInfo.Env().IsExceptionPending()) {
+ // We need to clear the exception so that removing the wrap might work.
+ Error e = callbackInfo.Env().GetAndClearPendingException();
+ delete instance;
+ e.ThrowAsJavaScriptException();
+ } else {
+ instance->_construction_failed = false;
+ }
+# endif // NAPI_CPP_EXCEPTIONS
+ return callbackInfo.This();
+ });
+
+ return wrapper;
+}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::StaticVoidMethodCallbackWrapper(
+ napi_env env,
+ napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ StaticVoidMethodCallbackData* callbackData =
+ reinterpret_cast<StaticVoidMethodCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ callbackData->callback(callbackInfo);
+ return nullptr;
+ });
+}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::StaticMethodCallbackWrapper(
+ napi_env env,
+ napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ StaticMethodCallbackData* callbackData =
+ reinterpret_cast<StaticMethodCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ return callbackData->callback(callbackInfo);
+ });
+}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::StaticGetterCallbackWrapper(
+ napi_env env,
+ napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ StaticAccessorCallbackData* callbackData =
+ reinterpret_cast<StaticAccessorCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ return callbackData->getterCallback(callbackInfo);
+ });
+}
+
+template <typename T>
+inline napi_value ObjectWrap<T>::StaticSetterCallbackWrapper(
+ napi_env env,
+ napi_callback_info info) {
+ return details::WrapCallback([&] {
+ CallbackInfo callbackInfo(env, info);
+ StaticAccessorCallbackData* callbackData =
+ reinterpret_cast<StaticAccessorCallbackData*>(callbackInfo.Data());
+ callbackInfo.SetData(callbackData->data);
+ callbackData->setterCallback(callbackInfo, callbackInfo[0]);
+ return nullptr;
+ });
+}
+
+template <typename T>
+inline void ObjectWrap<T>::FinalizeCallback(napi_env env, void* data, void* /*hint*/) {
+ HandleScope scope(env);
+ T* instance = static_cast<T*>(data);
+ instance->Finalize(Napi::Env(env));
+ delete instance;
+}
+
+template <typename T>
+template <typename ObjectWrap<T>::StaticSetterCallback method>
+inline napi_value ObjectWrap<T>::WrappedMethod(
+ napi_env env, napi_callback_info info) NAPI_NOEXCEPT {
+ return details::WrapCallback([&] {
+ const CallbackInfo cbInfo(env, info);
+ method(cbInfo, cbInfo[0]);
+ return nullptr;
+ });
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// HandleScope class
+////////////////////////////////////////////////////////////////////////////////
+
+inline HandleScope::HandleScope(napi_env env, napi_handle_scope scope)
+ : _env(env), _scope(scope) {
+}
+
+inline HandleScope::HandleScope(Napi::Env env) : _env(env) {
+ napi_status status = napi_open_handle_scope(_env, &_scope);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline HandleScope::~HandleScope() {
+ napi_status status = napi_close_handle_scope(_env, _scope);
+ NAPI_FATAL_IF_FAILED(status,
+ "HandleScope::~HandleScope",
+ "napi_close_handle_scope");
+}
+
+inline HandleScope::operator napi_handle_scope() const {
+ return _scope;
+}
+
+inline Napi::Env HandleScope::Env() const {
+ return Napi::Env(_env);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// EscapableHandleScope class
+////////////////////////////////////////////////////////////////////////////////
+
+inline EscapableHandleScope::EscapableHandleScope(
+ napi_env env, napi_escapable_handle_scope scope) : _env(env), _scope(scope) {
+}
+
+inline EscapableHandleScope::EscapableHandleScope(Napi::Env env) : _env(env) {
+ napi_status status = napi_open_escapable_handle_scope(_env, &_scope);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline EscapableHandleScope::~EscapableHandleScope() {
+ napi_status status = napi_close_escapable_handle_scope(_env, _scope);
+ NAPI_FATAL_IF_FAILED(status,
+ "EscapableHandleScope::~EscapableHandleScope",
+ "napi_close_escapable_handle_scope");
+}
+
+inline EscapableHandleScope::operator napi_escapable_handle_scope() const {
+ return _scope;
+}
+
+inline Napi::Env EscapableHandleScope::Env() const {
+ return Napi::Env(_env);
+}
+
+inline Value EscapableHandleScope::Escape(napi_value escapee) {
+ napi_value result;
+ napi_status status = napi_escape_handle(_env, _scope, escapee, &result);
+ NAPI_THROW_IF_FAILED(_env, status, Value());
+ return Value(_env, result);
+}
+
+
+#if (NAPI_VERSION > 2)
+////////////////////////////////////////////////////////////////////////////////
+// CallbackScope class
+////////////////////////////////////////////////////////////////////////////////
+
+inline CallbackScope::CallbackScope(
+ napi_env env, napi_callback_scope scope) : _env(env), _scope(scope) {
+}
+
+inline CallbackScope::CallbackScope(napi_env env, napi_async_context context)
+ : _env(env) {
+ napi_status status = napi_open_callback_scope(
+ _env, Object::New(env), context, &_scope);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline CallbackScope::~CallbackScope() {
+ napi_status status = napi_close_callback_scope(_env, _scope);
+ NAPI_FATAL_IF_FAILED(status,
+ "CallbackScope::~CallbackScope",
+ "napi_close_callback_scope");
+}
+
+inline CallbackScope::operator napi_callback_scope() const {
+ return _scope;
+}
+
+inline Napi::Env CallbackScope::Env() const {
+ return Napi::Env(_env);
+}
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// AsyncContext class
+////////////////////////////////////////////////////////////////////////////////
+
+inline AsyncContext::AsyncContext(napi_env env, const char* resource_name)
+ : AsyncContext(env, resource_name, Object::New(env)) {
+}
+
+inline AsyncContext::AsyncContext(napi_env env,
+ const char* resource_name,
+ const Object& resource)
+ : _env(env), _context(nullptr) {
+ napi_value resource_id;
+ napi_status status = napi_create_string_utf8(
+ _env, resource_name, NAPI_AUTO_LENGTH, &resource_id);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+
+ status = napi_async_init(_env, resource, resource_id, &_context);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline AsyncContext::~AsyncContext() {
+ if (_context != nullptr) {
+ napi_async_destroy(_env, _context);
+ _context = nullptr;
+ }
+}
+
+inline AsyncContext::AsyncContext(AsyncContext&& other) {
+ _env = other._env;
+ other._env = nullptr;
+ _context = other._context;
+ other._context = nullptr;
+}
+
+inline AsyncContext& AsyncContext::operator =(AsyncContext&& other) {
+ _env = other._env;
+ other._env = nullptr;
+ _context = other._context;
+ other._context = nullptr;
+ return *this;
+}
+
+inline AsyncContext::operator napi_async_context() const {
+ return _context;
+}
+
+inline Napi::Env AsyncContext::Env() const {
+ return Napi::Env(_env);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// AsyncWorker class
+////////////////////////////////////////////////////////////////////////////////
+
+inline AsyncWorker::AsyncWorker(const Function& callback)
+ : AsyncWorker(callback, "generic") {
+}
+
+inline AsyncWorker::AsyncWorker(const Function& callback,
+ const char* resource_name)
+ : AsyncWorker(callback, resource_name, Object::New(callback.Env())) {
+}
+
+inline AsyncWorker::AsyncWorker(const Function& callback,
+ const char* resource_name,
+ const Object& resource)
+ : AsyncWorker(Object::New(callback.Env()),
+ callback,
+ resource_name,
+ resource) {
+}
+
+inline AsyncWorker::AsyncWorker(const Object& receiver,
+ const Function& callback)
+ : AsyncWorker(receiver, callback, "generic") {
+}
+
+inline AsyncWorker::AsyncWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name)
+ : AsyncWorker(receiver,
+ callback,
+ resource_name,
+ Object::New(callback.Env())) {
+}
+
+inline AsyncWorker::AsyncWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name,
+ const Object& resource)
+ : _env(callback.Env()),
+ _receiver(Napi::Persistent(receiver)),
+ _callback(Napi::Persistent(callback)),
+ _suppress_destruct(false) {
+ napi_value resource_id;
+ napi_status status = napi_create_string_latin1(
+ _env, resource_name, NAPI_AUTO_LENGTH, &resource_id);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+
+ status = napi_create_async_work(_env, resource, resource_id, OnAsyncWorkExecute,
+ OnAsyncWorkComplete, this, &_work);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline AsyncWorker::AsyncWorker(Napi::Env env)
+ : AsyncWorker(env, "generic") {
+}
+
+inline AsyncWorker::AsyncWorker(Napi::Env env,
+ const char* resource_name)
+ : AsyncWorker(env, resource_name, Object::New(env)) {
+}
+
+inline AsyncWorker::AsyncWorker(Napi::Env env,
+ const char* resource_name,
+ const Object& resource)
+ : _env(env),
+ _receiver(),
+ _callback(),
+ _suppress_destruct(false) {
+ napi_value resource_id;
+ napi_status status = napi_create_string_latin1(
+ _env, resource_name, NAPI_AUTO_LENGTH, &resource_id);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+
+ status = napi_create_async_work(_env, resource, resource_id, OnAsyncWorkExecute,
+ OnAsyncWorkComplete, this, &_work);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline AsyncWorker::~AsyncWorker() {
+ if (_work != nullptr) {
+ napi_delete_async_work(_env, _work);
+ _work = nullptr;
+ }
+}
+
+inline void AsyncWorker::Destroy() {
+ delete this;
+}
+
+inline AsyncWorker::AsyncWorker(AsyncWorker&& other) {
+ _env = other._env;
+ other._env = nullptr;
+ _work = other._work;
+ other._work = nullptr;
+ _receiver = std::move(other._receiver);
+ _callback = std::move(other._callback);
+ _error = std::move(other._error);
+ _suppress_destruct = other._suppress_destruct;
+}
+
+inline AsyncWorker& AsyncWorker::operator =(AsyncWorker&& other) {
+ _env = other._env;
+ other._env = nullptr;
+ _work = other._work;
+ other._work = nullptr;
+ _receiver = std::move(other._receiver);
+ _callback = std::move(other._callback);
+ _error = std::move(other._error);
+ _suppress_destruct = other._suppress_destruct;
+ return *this;
+}
+
+inline AsyncWorker::operator napi_async_work() const {
+ return _work;
+}
+
+inline Napi::Env AsyncWorker::Env() const {
+ return Napi::Env(_env);
+}
+
+inline void AsyncWorker::Queue() {
+ napi_status status = napi_queue_async_work(_env, _work);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline void AsyncWorker::Cancel() {
+ napi_status status = napi_cancel_async_work(_env, _work);
+ NAPI_THROW_IF_FAILED_VOID(_env, status);
+}
+
+inline ObjectReference& AsyncWorker::Receiver() {
+ return _receiver;
+}
+
+inline FunctionReference& AsyncWorker::Callback() {
+ return _callback;
+}
+
+inline void AsyncWorker::SuppressDestruct() {
+ _suppress_destruct = true;
+}
+
+inline void AsyncWorker::OnOK() {
+ if (!_callback.IsEmpty()) {
+ _callback.Call(_receiver.Value(), GetResult(_callback.Env()));
+ }
+}
+
+inline void AsyncWorker::OnError(const Error& e) {
+ if (!_callback.IsEmpty()) {
+ _callback.Call(_receiver.Value(), std::initializer_list<napi_value>{ e.Value() });
+ }
+}
+
+inline void AsyncWorker::SetError(const std::string& error) {
+ _error = error;
+}
+
+inline std::vector<napi_value> AsyncWorker::GetResult(Napi::Env /*env*/) {
+ return {};
+}
+// The OnAsyncWorkExecute method receives an napi_env argument. However, do NOT
+// use it within this method, as it does not run on the JavaScript thread and
+// must not run any method that would cause JavaScript to run. In practice,
+// this means that almost any use of napi_env will be incorrect.
+inline void AsyncWorker::OnAsyncWorkExecute(napi_env env, void* asyncworker) {
+ AsyncWorker* self = static_cast<AsyncWorker*>(asyncworker);
+ self->OnExecute(env);
+}
+// The OnExecute method receives an napi_env argument. However, do NOT
+// use it within this method, as it does not run on the JavaScript thread and
+// must not run any method that would cause JavaScript to run. In practice,
+// this means that almost any use of napi_env will be incorrect.
+inline void AsyncWorker::OnExecute(Napi::Env /*DO_NOT_USE*/) {
+#ifdef NAPI_CPP_EXCEPTIONS
+ try {
+ Execute();
+ } catch (const std::exception& e) {
+ SetError(e.what());
+ }
+#else // NAPI_CPP_EXCEPTIONS
+ Execute();
+#endif // NAPI_CPP_EXCEPTIONS
+}
+
+inline void AsyncWorker::OnAsyncWorkComplete(napi_env env,
+ napi_status status,
+ void* asyncworker) {
+ AsyncWorker* self = static_cast<AsyncWorker*>(asyncworker);
+ self->OnWorkComplete(env, status);
+}
+inline void AsyncWorker::OnWorkComplete(Napi::Env /*env*/, napi_status status) {
+ if (status != napi_cancelled) {
+ HandleScope scope(_env);
+ details::WrapCallback([&] {
+ if (_error.size() == 0) {
+ OnOK();
+ }
+ else {
+ OnError(Error::New(_env, _error));
+ }
+ return nullptr;
+ });
+ }
+ if (!_suppress_destruct) {
+ Destroy();
+ }
+}
+
+#if (NAPI_VERSION > 3 && !defined(__wasm32__))
+////////////////////////////////////////////////////////////////////////////////
+// TypedThreadSafeFunction<ContextType,DataType,CallJs> class
+////////////////////////////////////////////////////////////////////////////////
+
+// Starting with NAPI 5, the JavaScript function `func` parameter of
+// `napi_create_threadsafe_function` is optional.
+#if NAPI_VERSION > 4
+// static, with Callback [missing] Resource [missing] Finalizer [missing]
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+ napi_env env,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context) {
+ TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+ napi_status status =
+ napi_create_threadsafe_function(env,
+ nullptr,
+ nullptr,
+ String::From(env, resourceName),
+ maxQueueSize,
+ initialThreadCount,
+ nullptr,
+ nullptr,
+ context,
+ CallJsInternal,
+ &tsfn._tsfn);
+ if (status != napi_ok) {
+ NAPI_THROW_IF_FAILED(
+ env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+ }
+
+ return tsfn;
+}
+
+// static, with Callback [missing] Resource [passed] Finalizer [missing]
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+ napi_env env,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context) {
+ TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+ napi_status status =
+ napi_create_threadsafe_function(env,
+ nullptr,
+ resource,
+ String::From(env, resourceName),
+ maxQueueSize,
+ initialThreadCount,
+ nullptr,
+ nullptr,
+ context,
+ CallJsInternal,
+ &tsfn._tsfn);
+ if (status != napi_ok) {
+ NAPI_THROW_IF_FAILED(
+ env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+ }
+
+ return tsfn;
+}
+
+// static, with Callback [missing] Resource [missing] Finalizer [passed]
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString,
+ typename Finalizer,
+ typename FinalizerDataType>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+ napi_env env,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data) {
+ TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+ auto* finalizeData = new details::
+ ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>(
+ {data, finalizeCallback});
+ napi_status status = napi_create_threadsafe_function(
+ env,
+ nullptr,
+ nullptr,
+ String::From(env, resourceName),
+ maxQueueSize,
+ initialThreadCount,
+ finalizeData,
+ details::ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>::
+ FinalizeFinalizeWrapperWithDataAndContext,
+ context,
+ CallJsInternal,
+ &tsfn._tsfn);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(
+ env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+ }
+
+ return tsfn;
+}
+
+// static, with Callback [missing] Resource [passed] Finalizer [passed]
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString,
+ typename Finalizer,
+ typename FinalizerDataType>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+ napi_env env,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data) {
+ TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+ auto* finalizeData = new details::
+ ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>(
+ {data, finalizeCallback});
+ napi_status status = napi_create_threadsafe_function(
+ env,
+ nullptr,
+ resource,
+ String::From(env, resourceName),
+ maxQueueSize,
+ initialThreadCount,
+ finalizeData,
+ details::ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>::
+ FinalizeFinalizeWrapperWithDataAndContext,
+ context,
+ CallJsInternal,
+ &tsfn._tsfn);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(
+ env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+ }
+
+ return tsfn;
+}
+#endif
+
+// static, with Callback [passed] Resource [missing] Finalizer [missing]
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+ napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context) {
+ TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+ napi_status status =
+ napi_create_threadsafe_function(env,
+ callback,
+ nullptr,
+ String::From(env, resourceName),
+ maxQueueSize,
+ initialThreadCount,
+ nullptr,
+ nullptr,
+ context,
+ CallJsInternal,
+ &tsfn._tsfn);
+ if (status != napi_ok) {
+ NAPI_THROW_IF_FAILED(
+ env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+ }
+
+ return tsfn;
+}
+
+// static, with Callback [passed] Resource [passed] Finalizer [missing]
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+ napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context) {
+ TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+ napi_status status =
+ napi_create_threadsafe_function(env,
+ callback,
+ resource,
+ String::From(env, resourceName),
+ maxQueueSize,
+ initialThreadCount,
+ nullptr,
+ nullptr,
+ context,
+ CallJsInternal,
+ &tsfn._tsfn);
+ if (status != napi_ok) {
+ NAPI_THROW_IF_FAILED(
+ env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+ }
+
+ return tsfn;
+}
+
+// static, with Callback [passed] Resource [missing] Finalizer [passed]
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename ResourceString,
+ typename Finalizer,
+ typename FinalizerDataType>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+ napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data) {
+ TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+ auto* finalizeData = new details::
+ ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>(
+ {data, finalizeCallback});
+ napi_status status = napi_create_threadsafe_function(
+ env,
+ callback,
+ nullptr,
+ String::From(env, resourceName),
+ maxQueueSize,
+ initialThreadCount,
+ finalizeData,
+ details::ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>::
+ FinalizeFinalizeWrapperWithDataAndContext,
+ context,
+ CallJsInternal,
+ &tsfn._tsfn);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(
+ env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+ }
+
+ return tsfn;
+}
+
+// static, with: Callback [passed] Resource [passed] Finalizer [passed]
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+template <typename CallbackType,
+ typename ResourceString,
+ typename Finalizer,
+ typename FinalizerDataType>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::New(
+ napi_env env,
+ CallbackType callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data) {
+ TypedThreadSafeFunction<ContextType, DataType, CallJs> tsfn;
+
+ auto* finalizeData = new details::
+ ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>(
+ {data, finalizeCallback});
+ napi_status status = napi_create_threadsafe_function(
+ env,
+ details::DefaultCallbackWrapper<
+ CallbackType,
+ TypedThreadSafeFunction<ContextType, DataType, CallJs>>(env,
+ callback),
+ resource,
+ String::From(env, resourceName),
+ maxQueueSize,
+ initialThreadCount,
+ finalizeData,
+ details::ThreadSafeFinalize<ContextType, Finalizer, FinalizerDataType>::
+ FinalizeFinalizeWrapperWithDataAndContext,
+ context,
+ CallJsInternal,
+ &tsfn._tsfn);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(
+ env, status, TypedThreadSafeFunction<ContextType, DataType, CallJs>());
+ }
+
+ return tsfn;
+}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>::
+ TypedThreadSafeFunction()
+ : _tsfn() {}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>::
+ TypedThreadSafeFunction(napi_threadsafe_function tsfn)
+ : _tsfn(tsfn) {}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline TypedThreadSafeFunction<ContextType, DataType, CallJs>::
+operator napi_threadsafe_function() const {
+ return _tsfn;
+}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::BlockingCall(
+ DataType* data) const {
+ return napi_call_threadsafe_function(_tsfn, data, napi_tsfn_blocking);
+}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::NonBlockingCall(
+ DataType* data) const {
+ return napi_call_threadsafe_function(_tsfn, data, napi_tsfn_nonblocking);
+}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline void TypedThreadSafeFunction<ContextType, DataType, CallJs>::Ref(
+ napi_env env) const {
+ if (_tsfn != nullptr) {
+ napi_status status = napi_ref_threadsafe_function(env, _tsfn);
+ NAPI_THROW_IF_FAILED_VOID(env, status);
+ }
+}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline void TypedThreadSafeFunction<ContextType, DataType, CallJs>::Unref(
+ napi_env env) const {
+ if (_tsfn != nullptr) {
+ napi_status status = napi_unref_threadsafe_function(env, _tsfn);
+ NAPI_THROW_IF_FAILED_VOID(env, status);
+ }
+}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::Acquire() const {
+ return napi_acquire_threadsafe_function(_tsfn);
+}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::Release() {
+ return napi_release_threadsafe_function(_tsfn, napi_tsfn_release);
+}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline napi_status
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::Abort() {
+ return napi_release_threadsafe_function(_tsfn, napi_tsfn_abort);
+}
+
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+inline ContextType*
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::GetContext() const {
+ void* context;
+ napi_status status = napi_get_threadsafe_function_context(_tsfn, &context);
+ NAPI_FATAL_IF_FAILED(status,
+ "TypedThreadSafeFunction::GetContext",
+ "napi_get_threadsafe_function_context");
+ return static_cast<ContextType*>(context);
+}
+
+// static
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+void TypedThreadSafeFunction<ContextType, DataType, CallJs>::CallJsInternal(
+ napi_env env, napi_value jsCallback, void* context, void* data) {
+ details::CallJsWrapper<ContextType, DataType, decltype(CallJs), CallJs>(
+ env, jsCallback, context, data);
+}
+
+#if NAPI_VERSION == 4
+// static
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+Napi::Function
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::EmptyFunctionFactory(
+ Napi::Env env) {
+ return Napi::Function::New(env, [](const CallbackInfo& cb) {});
+}
+
+// static
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+Napi::Function
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::FunctionOrEmpty(
+ Napi::Env env, Napi::Function& callback) {
+ if (callback.IsEmpty()) {
+ return EmptyFunctionFactory(env);
+ }
+ return callback;
+}
+
+#else
+// static
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+std::nullptr_t
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::EmptyFunctionFactory(
+ Napi::Env /*env*/) {
+ return nullptr;
+}
+
+// static
+template <typename ContextType,
+ typename DataType,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*)>
+Napi::Function
+TypedThreadSafeFunction<ContextType, DataType, CallJs>::FunctionOrEmpty(
+ Napi::Env /*env*/, Napi::Function& callback) {
+ return callback;
+}
+
+#endif
+
+////////////////////////////////////////////////////////////////////////////////
+// ThreadSafeFunction class
+////////////////////////////////////////////////////////////////////////////////
+
+// static
+template <typename ResourceString>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount) {
+ return New(env, callback, Object(), resourceName, maxQueueSize,
+ initialThreadCount);
+}
+
+// static
+template <typename ResourceString, typename ContextType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context) {
+ return New(env, callback, Object(), resourceName, maxQueueSize,
+ initialThreadCount, context);
+}
+
+// static
+template <typename ResourceString, typename Finalizer>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ Finalizer finalizeCallback) {
+ return New(env, callback, Object(), resourceName, maxQueueSize,
+ initialThreadCount, finalizeCallback);
+}
+
+// static
+template <typename ResourceString, typename Finalizer,
+ typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data) {
+ return New(env, callback, Object(), resourceName, maxQueueSize,
+ initialThreadCount, finalizeCallback, data);
+}
+
+// static
+template <typename ResourceString, typename ContextType, typename Finalizer>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback) {
+ return New(env, callback, Object(), resourceName, maxQueueSize,
+ initialThreadCount, context, finalizeCallback);
+}
+
+// static
+template <typename ResourceString, typename ContextType,
+ typename Finalizer, typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data) {
+ return New(env, callback, Object(), resourceName, maxQueueSize,
+ initialThreadCount, context, finalizeCallback, data);
+}
+
+// static
+template <typename ResourceString>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount) {
+ return New(env, callback, resource, resourceName, maxQueueSize,
+ initialThreadCount, static_cast<void*>(nullptr) /* context */);
+}
+
+// static
+template <typename ResourceString, typename ContextType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context) {
+ return New(env, callback, resource, resourceName, maxQueueSize,
+ initialThreadCount, context,
+ [](Env, ContextType*) {} /* empty finalizer */);
+}
+
+// static
+template <typename ResourceString, typename Finalizer>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ Finalizer finalizeCallback) {
+ return New(env, callback, resource, resourceName, maxQueueSize,
+ initialThreadCount, static_cast<void*>(nullptr) /* context */,
+ finalizeCallback, static_cast<void*>(nullptr) /* data */,
+ details::ThreadSafeFinalize<void, Finalizer>::Wrapper);
+}
+
+// static
+template <typename ResourceString, typename Finalizer,
+ typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data) {
+ return New(env, callback, resource, resourceName, maxQueueSize,
+ initialThreadCount, static_cast<void*>(nullptr) /* context */,
+ finalizeCallback, data,
+ details::ThreadSafeFinalize<
+ void, Finalizer, FinalizerDataType>::FinalizeWrapperWithData);
+}
+
+// static
+template <typename ResourceString, typename ContextType, typename Finalizer>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback) {
+ return New(env, callback, resource, resourceName, maxQueueSize,
+ initialThreadCount, context, finalizeCallback,
+ static_cast<void*>(nullptr) /* data */,
+ details::ThreadSafeFinalize<
+ ContextType, Finalizer>::FinalizeWrapperWithContext);
+}
+
+// static
+template <typename ResourceString, typename ContextType,
+ typename Finalizer, typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data) {
+ return New(env, callback, resource, resourceName, maxQueueSize,
+ initialThreadCount, context, finalizeCallback, data,
+ details::ThreadSafeFinalize<ContextType, Finalizer,
+ FinalizerDataType>::FinalizeFinalizeWrapperWithDataAndContext);
+}
+
+inline ThreadSafeFunction::ThreadSafeFunction()
+ : _tsfn() {
+}
+
+inline ThreadSafeFunction::ThreadSafeFunction(
+ napi_threadsafe_function tsfn)
+ : _tsfn(tsfn) {
+}
+
+inline ThreadSafeFunction::operator napi_threadsafe_function() const {
+ return _tsfn;
+}
+
+inline napi_status ThreadSafeFunction::BlockingCall() const {
+ return CallInternal(nullptr, napi_tsfn_blocking);
+}
+
+template <>
+inline napi_status ThreadSafeFunction::BlockingCall(
+ void* data) const {
+ return napi_call_threadsafe_function(_tsfn, data, napi_tsfn_blocking);
+}
+
+template <typename Callback>
+inline napi_status ThreadSafeFunction::BlockingCall(
+ Callback callback) const {
+ return CallInternal(new CallbackWrapper(callback), napi_tsfn_blocking);
+}
+
+template <typename DataType, typename Callback>
+inline napi_status ThreadSafeFunction::BlockingCall(
+ DataType* data, Callback callback) const {
+ auto wrapper = [data, callback](Env env, Function jsCallback) {
+ callback(env, jsCallback, data);
+ };
+ return CallInternal(new CallbackWrapper(wrapper), napi_tsfn_blocking);
+}
+
+inline napi_status ThreadSafeFunction::NonBlockingCall() const {
+ return CallInternal(nullptr, napi_tsfn_nonblocking);
+}
+
+template <>
+inline napi_status ThreadSafeFunction::NonBlockingCall(
+ void* data) const {
+ return napi_call_threadsafe_function(_tsfn, data, napi_tsfn_nonblocking);
+}
+
+template <typename Callback>
+inline napi_status ThreadSafeFunction::NonBlockingCall(
+ Callback callback) const {
+ return CallInternal(new CallbackWrapper(callback), napi_tsfn_nonblocking);
+}
+
+template <typename DataType, typename Callback>
+inline napi_status ThreadSafeFunction::NonBlockingCall(
+ DataType* data, Callback callback) const {
+ auto wrapper = [data, callback](Env env, Function jsCallback) {
+ callback(env, jsCallback, data);
+ };
+ return CallInternal(new CallbackWrapper(wrapper), napi_tsfn_nonblocking);
+}
+
+inline void ThreadSafeFunction::Ref(napi_env env) const {
+ if (_tsfn != nullptr) {
+ napi_status status = napi_ref_threadsafe_function(env, _tsfn);
+ NAPI_THROW_IF_FAILED_VOID(env, status);
+ }
+}
+
+inline void ThreadSafeFunction::Unref(napi_env env) const {
+ if (_tsfn != nullptr) {
+ napi_status status = napi_unref_threadsafe_function(env, _tsfn);
+ NAPI_THROW_IF_FAILED_VOID(env, status);
+ }
+}
+
+inline napi_status ThreadSafeFunction::Acquire() const {
+ return napi_acquire_threadsafe_function(_tsfn);
+}
+
+inline napi_status ThreadSafeFunction::Release() {
+ return napi_release_threadsafe_function(_tsfn, napi_tsfn_release);
+}
+
+inline napi_status ThreadSafeFunction::Abort() {
+ return napi_release_threadsafe_function(_tsfn, napi_tsfn_abort);
+}
+
+inline ThreadSafeFunction::ConvertibleContext
+ThreadSafeFunction::GetContext() const {
+ void* context;
+ napi_status status = napi_get_threadsafe_function_context(_tsfn, &context);
+ NAPI_FATAL_IF_FAILED(status, "ThreadSafeFunction::GetContext", "napi_get_threadsafe_function_context");
+ return ConvertibleContext({ context });
+}
+
+// static
+template <typename ResourceString, typename ContextType,
+ typename Finalizer, typename FinalizerDataType>
+inline ThreadSafeFunction ThreadSafeFunction::New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data,
+ napi_finalize wrapper) {
+ static_assert(details::can_make_string<ResourceString>::value
+ || std::is_convertible<ResourceString, napi_value>::value,
+ "Resource name should be convertible to the string type");
+
+ ThreadSafeFunction tsfn;
+ auto* finalizeData = new details::ThreadSafeFinalize<ContextType, Finalizer,
+ FinalizerDataType>({ data, finalizeCallback });
+ napi_status status = napi_create_threadsafe_function(env, callback, resource,
+ Value::From(env, resourceName), maxQueueSize, initialThreadCount,
+ finalizeData, wrapper, context, CallJS, &tsfn._tsfn);
+ if (status != napi_ok) {
+ delete finalizeData;
+ NAPI_THROW_IF_FAILED(env, status, ThreadSafeFunction());
+ }
+
+ return tsfn;
+}
+
+inline napi_status ThreadSafeFunction::CallInternal(
+ CallbackWrapper* callbackWrapper,
+ napi_threadsafe_function_call_mode mode) const {
+ napi_status status = napi_call_threadsafe_function(
+ _tsfn, callbackWrapper, mode);
+ if (status != napi_ok && callbackWrapper != nullptr) {
+ delete callbackWrapper;
+ }
+
+ return status;
+}
+
+// static
+inline void ThreadSafeFunction::CallJS(napi_env env,
+ napi_value jsCallback,
+ void* /* context */,
+ void* data) {
+ if (env == nullptr && jsCallback == nullptr) {
+ return;
+ }
+
+ if (data != nullptr) {
+ auto* callbackWrapper = static_cast<CallbackWrapper*>(data);
+ (*callbackWrapper)(env, Function(env, jsCallback));
+ delete callbackWrapper;
+ } else if (jsCallback != nullptr) {
+ Function(env, jsCallback).Call({});
+ }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Async Progress Worker Base class
+////////////////////////////////////////////////////////////////////////////////
+template <typename DataType>
+inline AsyncProgressWorkerBase<DataType>::AsyncProgressWorkerBase(const Object& receiver,
+ const Function& callback,
+ const char* resource_name,
+ const Object& resource,
+ size_t queue_size)
+ : AsyncWorker(receiver, callback, resource_name, resource) {
+ // Fill all possible arguments to work around ambiguous ThreadSafeFunction::New signatures.
+ _tsfn = ThreadSafeFunction::New(callback.Env(),
+ callback,
+ resource,
+ resource_name,
+ queue_size,
+ /** initialThreadCount */ 1,
+ /** context */ this,
+ OnThreadSafeFunctionFinalize,
+ /** finalizeData */ this);
+}
+
+#if NAPI_VERSION > 4
+template <typename DataType>
+inline AsyncProgressWorkerBase<DataType>::AsyncProgressWorkerBase(Napi::Env env,
+ const char* resource_name,
+ const Object& resource,
+ size_t queue_size)
+ : AsyncWorker(env, resource_name, resource) {
+ // TODO: Once the changes to make the callback optional for threadsafe
+ // functions are available on all versions we can remove the dummy Function here.
+ Function callback;
+ // Fill all possible arguments to work around ambiguous ThreadSafeFunction::New signatures.
+ _tsfn = ThreadSafeFunction::New(env,
+ callback,
+ resource,
+ resource_name,
+ queue_size,
+ /** initialThreadCount */ 1,
+ /** context */ this,
+ OnThreadSafeFunctionFinalize,
+ /** finalizeData */ this);
+}
+#endif
+
+template<typename DataType>
+inline AsyncProgressWorkerBase<DataType>::~AsyncProgressWorkerBase() {
+ // Abort pending tsfn call.
+ // Don't send progress events after we've already completed.
+ // It's ok to call ThreadSafeFunction::Abort and ThreadSafeFunction::Release duplicated.
+ _tsfn.Abort();
+}
+
+template <typename DataType>
+inline void AsyncProgressWorkerBase<DataType>::OnAsyncWorkProgress(Napi::Env /* env */,
+ Napi::Function /* jsCallback */,
+ void* data) {
+ ThreadSafeData* tsd = static_cast<ThreadSafeData*>(data);
+ tsd->asyncprogressworker()->OnWorkProgress(tsd->data());
+ delete tsd;
+}
+
+template <typename DataType>
+inline napi_status AsyncProgressWorkerBase<DataType>::NonBlockingCall(DataType* data) {
+ auto tsd = new AsyncProgressWorkerBase::ThreadSafeData(this, data);
+ return _tsfn.NonBlockingCall(tsd, OnAsyncWorkProgress);
+}
+
+template <typename DataType>
+inline void AsyncProgressWorkerBase<DataType>::OnWorkComplete(Napi::Env /* env */, napi_status status) {
+ _work_completed = true;
+ _complete_status = status;
+ _tsfn.Release();
+}
+
+template <typename DataType>
+inline void AsyncProgressWorkerBase<DataType>::OnThreadSafeFunctionFinalize(Napi::Env env, void* /* data */, AsyncProgressWorkerBase* context) {
+ if (context->_work_completed) {
+ context->AsyncWorker::OnWorkComplete(env, context->_complete_status);
+ }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Async Progress Worker class
+////////////////////////////////////////////////////////////////////////////////
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Function& callback)
+ : AsyncProgressWorker(callback, "generic") {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Function& callback,
+ const char* resource_name)
+ : AsyncProgressWorker(callback, resource_name, Object::New(callback.Env())) {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Function& callback,
+ const char* resource_name,
+ const Object& resource)
+ : AsyncProgressWorker(Object::New(callback.Env()),
+ callback,
+ resource_name,
+ resource) {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Object& receiver,
+ const Function& callback)
+ : AsyncProgressWorker(receiver, callback, "generic") {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name)
+ : AsyncProgressWorker(receiver,
+ callback,
+ resource_name,
+ Object::New(callback.Env())) {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name,
+ const Object& resource)
+ : AsyncProgressWorkerBase(receiver, callback, resource_name, resource),
+ _asyncdata(nullptr),
+ _asyncsize(0) {
+}
+
+#if NAPI_VERSION > 4
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(Napi::Env env)
+ : AsyncProgressWorker(env, "generic") {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(Napi::Env env,
+ const char* resource_name)
+ : AsyncProgressWorker(env, resource_name, Object::New(env)) {
+}
+
+template<class T>
+inline AsyncProgressWorker<T>::AsyncProgressWorker(Napi::Env env,
+ const char* resource_name,
+ const Object& resource)
+ : AsyncProgressWorkerBase(env, resource_name, resource),
+ _asyncdata(nullptr),
+ _asyncsize(0) {
+}
+#endif
+
+template<class T>
+inline AsyncProgressWorker<T>::~AsyncProgressWorker() {
+ {
+ std::lock_guard<std::mutex> lock(this->_mutex);
+ _asyncdata = nullptr;
+ _asyncsize = 0;
+ }
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::Execute() {
+ ExecutionProgress progress(this);
+ Execute(progress);
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::OnWorkProgress(void*) {
+ T* data;
+ size_t size;
+ {
+ std::lock_guard<std::mutex> lock(this->_mutex);
+ data = this->_asyncdata;
+ size = this->_asyncsize;
+ this->_asyncdata = nullptr;
+ this->_asyncsize = 0;
+ }
+
+ /**
+ * The callback of ThreadSafeFunction is not been invoked immediately on the
+ * callback of uv_async_t (uv io poll), rather the callback of TSFN is
+ * invoked on the right next uv idle callback. There are chances that during
+ * the deferring the signal of uv_async_t is been sent again, i.e. potential
+ * not coalesced two calls of the TSFN callback.
+ */
+ if (data == nullptr) {
+ return;
+ }
+
+ this->OnProgress(data, size);
+ delete[] data;
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::SendProgress_(const T* data, size_t count) {
+ T* new_data = new T[count];
+ std::copy(data, data + count, new_data);
+
+ T* old_data;
+ {
+ std::lock_guard<std::mutex> lock(this->_mutex);
+ old_data = _asyncdata;
+ _asyncdata = new_data;
+ _asyncsize = count;
+ }
+ this->NonBlockingCall(nullptr);
+
+ delete[] old_data;
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::Signal() const {
+ this->NonBlockingCall(static_cast<T*>(nullptr));
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::ExecutionProgress::Signal() const {
+ _worker->Signal();
+}
+
+template<class T>
+inline void AsyncProgressWorker<T>::ExecutionProgress::Send(const T* data, size_t count) const {
+ _worker->SendProgress_(data, count);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Async Progress Queue Worker class
+////////////////////////////////////////////////////////////////////////////////
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Function& callback)
+ : AsyncProgressQueueWorker(callback, "generic") {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Function& callback,
+ const char* resource_name)
+ : AsyncProgressQueueWorker(callback, resource_name, Object::New(callback.Env())) {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Function& callback,
+ const char* resource_name,
+ const Object& resource)
+ : AsyncProgressQueueWorker(Object::New(callback.Env()),
+ callback,
+ resource_name,
+ resource) {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Object& receiver,
+ const Function& callback)
+ : AsyncProgressQueueWorker(receiver, callback, "generic") {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name)
+ : AsyncProgressQueueWorker(receiver,
+ callback,
+ resource_name,
+ Object::New(callback.Env())) {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name,
+ const Object& resource)
+ : AsyncProgressWorkerBase<std::pair<T*, size_t>>(receiver, callback, resource_name, resource, /** unlimited queue size */0) {
+}
+
+#if NAPI_VERSION > 4
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(Napi::Env env)
+ : AsyncProgressQueueWorker(env, "generic") {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(Napi::Env env,
+ const char* resource_name)
+ : AsyncProgressQueueWorker(env, resource_name, Object::New(env)) {
+}
+
+template<class T>
+inline AsyncProgressQueueWorker<T>::AsyncProgressQueueWorker(Napi::Env env,
+ const char* resource_name,
+ const Object& resource)
+ : AsyncProgressWorkerBase<std::pair<T*, size_t>>(env, resource_name, resource, /** unlimited queue size */0) {
+}
+#endif
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::Execute() {
+ ExecutionProgress progress(this);
+ Execute(progress);
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::OnWorkProgress(std::pair<T*, size_t>* datapair) {
+ if (datapair == nullptr) {
+ return;
+ }
+
+ T *data = datapair->first;
+ size_t size = datapair->second;
+
+ this->OnProgress(data, size);
+ delete datapair;
+ delete[] data;
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::SendProgress_(const T* data, size_t count) {
+ T* new_data = new T[count];
+ std::copy(data, data + count, new_data);
+
+ auto pair = new std::pair<T*, size_t>(new_data, count);
+ this->NonBlockingCall(pair);
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::Signal() const {
+ this->NonBlockingCall(nullptr);
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::OnWorkComplete(Napi::Env env, napi_status status) {
+ // Draining queued items in TSFN.
+ AsyncProgressWorkerBase<std::pair<T*, size_t>>::OnWorkComplete(env, status);
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::ExecutionProgress::Signal() const {
+ _worker->Signal();
+}
+
+template<class T>
+inline void AsyncProgressQueueWorker<T>::ExecutionProgress::Send(const T* data, size_t count) const {
+ _worker->SendProgress_(data, count);
+}
+#endif // NAPI_VERSION > 3 && !defined(__wasm32__)
+
+////////////////////////////////////////////////////////////////////////////////
+// Memory Management class
+////////////////////////////////////////////////////////////////////////////////
+
+inline int64_t MemoryManagement::AdjustExternalMemory(Env env, int64_t change_in_bytes) {
+ int64_t result;
+ napi_status status = napi_adjust_external_memory(env, change_in_bytes, &result);
+ NAPI_THROW_IF_FAILED(env, status, 0);
+ return result;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Version Management class
+////////////////////////////////////////////////////////////////////////////////
+
+inline uint32_t VersionManagement::GetNapiVersion(Env env) {
+ uint32_t result;
+ napi_status status = napi_get_version(env, &result);
+ NAPI_THROW_IF_FAILED(env, status, 0);
+ return result;
+}
+
+inline const napi_node_version* VersionManagement::GetNodeVersion(Env env) {
+ const napi_node_version* result;
+ napi_status status = napi_get_node_version(env, &result);
+ NAPI_THROW_IF_FAILED(env, status, 0);
+ return result;
+}
+
+#if NAPI_VERSION > 5
+////////////////////////////////////////////////////////////////////////////////
+// Addon<T> class
+////////////////////////////////////////////////////////////////////////////////
+
+template <typename T>
+inline Object Addon<T>::Init(Env env, Object exports) {
+ T* addon = new T(env, exports);
+ env.SetInstanceData(addon);
+ return addon->entry_point_;
+}
+
+template <typename T>
+inline T* Addon<T>::Unwrap(Object wrapper) {
+ return wrapper.Env().GetInstanceData<T>();
+}
+
+template <typename T>
+inline void
+Addon<T>::DefineAddon(Object exports,
+ const std::initializer_list<AddonProp>& props) {
+ DefineProperties(exports, props);
+ entry_point_ = exports;
+}
+
+template <typename T>
+inline Napi::Object
+Addon<T>::DefineProperties(Object object,
+ const std::initializer_list<AddonProp>& props) {
+ const napi_property_descriptor* properties =
+ reinterpret_cast<const napi_property_descriptor*>(props.begin());
+ size_t size = props.size();
+ napi_status status = napi_define_properties(object.Env(),
+ object,
+ size,
+ properties);
+ NAPI_THROW_IF_FAILED(object.Env(), status, object);
+ for (size_t idx = 0; idx < size; idx++)
+ T::AttachPropData(object.Env(), object, &properties[idx]);
+ return object;
+}
+#endif // NAPI_VERSION > 5
+
+} // namespace Napi
+
+#endif // SRC_NAPI_INL_H_
diff --git a/backend/node_modules/node-addon-api/napi.h b/backend/node_modules/node-addon-api/napi.h
new file mode 100644
index 0000000..7dc9b17
--- /dev/null
+++ b/backend/node_modules/node-addon-api/napi.h
@@ -0,0 +1,2727 @@
+#ifndef SRC_NAPI_H_
+#define SRC_NAPI_H_
+
+#include <node_api.h>
+#include <functional>
+#include <initializer_list>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <vector>
+
+// VS2015 RTM has bugs with constexpr, so require min of VS2015 Update 3 (known good version)
+#if !defined(_MSC_VER) || _MSC_FULL_VER >= 190024210
+#define NAPI_HAS_CONSTEXPR 1
+#endif
+
+// VS2013 does not support char16_t literal strings, so we'll work around it using wchar_t strings
+// and casting them. This is safe as long as the character sizes are the same.
+#if defined(_MSC_VER) && _MSC_VER <= 1800
+static_assert(sizeof(char16_t) == sizeof(wchar_t), "Size mismatch between char16_t and wchar_t");
+#define NAPI_WIDE_TEXT(x) reinterpret_cast<char16_t*>(L ## x)
+#else
+#define NAPI_WIDE_TEXT(x) u ## x
+#endif
+
+// If C++ exceptions are not explicitly enabled or disabled, enable them
+// if exceptions were enabled in the compiler settings.
+#if !defined(NAPI_CPP_EXCEPTIONS) && !defined(NAPI_DISABLE_CPP_EXCEPTIONS)
+ #if defined(_CPPUNWIND) || defined (__EXCEPTIONS)
+ #define NAPI_CPP_EXCEPTIONS
+ #else
+ #error Exception support not detected. \
+ Define either NAPI_CPP_EXCEPTIONS or NAPI_DISABLE_CPP_EXCEPTIONS.
+ #endif
+#endif
+
+#ifdef _NOEXCEPT
+ #define NAPI_NOEXCEPT _NOEXCEPT
+#else
+ #define NAPI_NOEXCEPT noexcept
+#endif
+
+#ifdef NAPI_CPP_EXCEPTIONS
+
+// When C++ exceptions are enabled, Errors are thrown directly. There is no need
+// to return anything after the throw statements. The variadic parameter is an
+// optional return value that is ignored.
+// We need _VOID versions of the macros to avoid warnings resulting from
+// leaving the NAPI_THROW_* `...` argument empty.
+
+#define NAPI_THROW(e, ...) throw e
+#define NAPI_THROW_VOID(e) throw e
+
+#define NAPI_THROW_IF_FAILED(env, status, ...) \
+ if ((status) != napi_ok) throw Napi::Error::New(env);
+
+#define NAPI_THROW_IF_FAILED_VOID(env, status) \
+ if ((status) != napi_ok) throw Napi::Error::New(env);
+
+#else // NAPI_CPP_EXCEPTIONS
+
+// When C++ exceptions are disabled, Errors are thrown as JavaScript exceptions,
+// which are pending until the callback returns to JS. The variadic parameter
+// is an optional return value; usually it is an empty result.
+// We need _VOID versions of the macros to avoid warnings resulting from
+// leaving the NAPI_THROW_* `...` argument empty.
+
+#define NAPI_THROW(e, ...) \
+ do { \
+ (e).ThrowAsJavaScriptException(); \
+ return __VA_ARGS__; \
+ } while (0)
+
+#define NAPI_THROW_VOID(e) \
+ do { \
+ (e).ThrowAsJavaScriptException(); \
+ return; \
+ } while (0)
+
+#define NAPI_THROW_IF_FAILED(env, status, ...) \
+ if ((status) != napi_ok) { \
+ Napi::Error::New(env).ThrowAsJavaScriptException(); \
+ return __VA_ARGS__; \
+ }
+
+#define NAPI_THROW_IF_FAILED_VOID(env, status) \
+ if ((status) != napi_ok) { \
+ Napi::Error::New(env).ThrowAsJavaScriptException(); \
+ return; \
+ }
+
+#endif // NAPI_CPP_EXCEPTIONS
+
+# define NAPI_DISALLOW_ASSIGN(CLASS) void operator=(const CLASS&) = delete;
+# define NAPI_DISALLOW_COPY(CLASS) CLASS(const CLASS&) = delete;
+
+#define NAPI_DISALLOW_ASSIGN_COPY(CLASS) \
+ NAPI_DISALLOW_ASSIGN(CLASS) \
+ NAPI_DISALLOW_COPY(CLASS)
+
+#define NAPI_FATAL_IF_FAILED(status, location, message) \
+ do { \
+ if ((status) != napi_ok) { \
+ Napi::Error::Fatal((location), (message)); \
+ } \
+ } while (0)
+
+////////////////////////////////////////////////////////////////////////////////
+/// Node-API C++ Wrapper Classes
+///
+/// These classes wrap the "Node-API" ABI-stable C APIs for Node.js, providing a
+/// C++ object model and C++ exception-handling semantics with low overhead.
+/// The wrappers are all header-only so that they do not affect the ABI.
+////////////////////////////////////////////////////////////////////////////////
+namespace Napi {
+
+ // Forward declarations
+ class Env;
+ class Value;
+ class Boolean;
+ class Number;
+#if NAPI_VERSION > 5
+ class BigInt;
+#endif // NAPI_VERSION > 5
+#if (NAPI_VERSION > 4)
+ class Date;
+#endif
+ class String;
+ class Object;
+ class Array;
+ class ArrayBuffer;
+ class Function;
+ class Error;
+ class PropertyDescriptor;
+ class CallbackInfo;
+ class TypedArray;
+ template <typename T> class TypedArrayOf;
+
+ using Int8Array =
+ TypedArrayOf<int8_t>; ///< Typed-array of signed 8-bit integers
+ using Uint8Array =
+ TypedArrayOf<uint8_t>; ///< Typed-array of unsigned 8-bit integers
+ using Int16Array =
+ TypedArrayOf<int16_t>; ///< Typed-array of signed 16-bit integers
+ using Uint16Array =
+ TypedArrayOf<uint16_t>; ///< Typed-array of unsigned 16-bit integers
+ using Int32Array =
+ TypedArrayOf<int32_t>; ///< Typed-array of signed 32-bit integers
+ using Uint32Array =
+ TypedArrayOf<uint32_t>; ///< Typed-array of unsigned 32-bit integers
+ using Float32Array =
+ TypedArrayOf<float>; ///< Typed-array of 32-bit floating-point values
+ using Float64Array =
+ TypedArrayOf<double>; ///< Typed-array of 64-bit floating-point values
+#if NAPI_VERSION > 5
+ using BigInt64Array =
+ TypedArrayOf<int64_t>; ///< Typed array of signed 64-bit integers
+ using BigUint64Array =
+ TypedArrayOf<uint64_t>; ///< Typed array of unsigned 64-bit integers
+#endif // NAPI_VERSION > 5
+
+ /// Defines the signature of a Node-API C++ module's registration callback
+ /// (init) function.
+ using ModuleRegisterCallback = Object (*)(Env env, Object exports);
+
+ class MemoryManagement;
+
+ /// Environment for Node-API values and operations.
+ ///
+ /// All Node-API values and operations must be associated with an environment.
+ /// An environment instance is always provided to callback functions; that
+ /// environment must then be used for any creation of Node-API values or other
+ /// Node-API operations within the callback. (Many methods infer the
+ /// environment from the `this` instance that the method is called on.)
+ ///
+ /// In the future, multiple environments per process may be supported,
+ /// although current implementations only support one environment per process.
+ ///
+ /// In the V8 JavaScript engine, a Node-API environment approximately
+ /// corresponds to an Isolate.
+ class Env {
+#if NAPI_VERSION > 5
+ private:
+ template <typename T> static void DefaultFini(Env, T* data);
+ template <typename DataType, typename HintType>
+ static void DefaultFiniWithHint(Env, DataType* data, HintType* hint);
+#endif // NAPI_VERSION > 5
+ public:
+ Env(napi_env env);
+
+ operator napi_env() const;
+
+ Object Global() const;
+ Value Undefined() const;
+ Value Null() const;
+
+ bool IsExceptionPending() const;
+ Error GetAndClearPendingException();
+
+ Value RunScript(const char* utf8script);
+ Value RunScript(const std::string& utf8script);
+ Value RunScript(String script);
+
+#if NAPI_VERSION > 5
+ template <typename T> T* GetInstanceData();
+
+ template <typename T> using Finalizer = void (*)(Env, T*);
+ template <typename T, Finalizer<T> fini = Env::DefaultFini<T>>
+ void SetInstanceData(T* data);
+
+ template <typename DataType, typename HintType>
+ using FinalizerWithHint = void (*)(Env, DataType*, HintType*);
+ template <typename DataType,
+ typename HintType,
+ FinalizerWithHint<DataType, HintType> fini =
+ Env::DefaultFiniWithHint<DataType, HintType>>
+ void SetInstanceData(DataType* data, HintType* hint);
+#endif // NAPI_VERSION > 5
+
+ private:
+ napi_env _env;
+ };
+
+ /// A JavaScript value of unknown type.
+ ///
+ /// For type-specific operations, convert to one of the Value subclasses using a `To*` or `As()`
+ /// method. The `To*` methods do type coercion; the `As()` method does not.
+ ///
+ /// Napi::Value value = ...
+ /// if (!value.IsString()) throw Napi::TypeError::New(env, "Invalid arg...");
+ /// Napi::String str = value.As<Napi::String>(); // Cast to a string value
+ ///
+ /// Napi::Value anotherValue = ...
+ /// bool isTruthy = anotherValue.ToBoolean(); // Coerce to a boolean value
+ class Value {
+ public:
+ Value(); ///< Creates a new _empty_ Value instance.
+ Value(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ /// Creates a JS value from a C++ primitive.
+ ///
+ /// `value` may be any of:
+ /// - bool
+ /// - Any integer type
+ /// - Any floating point type
+ /// - const char* (encoded using UTF-8, null-terminated)
+ /// - const char16_t* (encoded using UTF-16-LE, null-terminated)
+ /// - std::string (encoded using UTF-8)
+ /// - std::u16string
+ /// - napi::Value
+ /// - napi_value
+ template <typename T>
+ static Value From(napi_env env, const T& value);
+
+ /// Converts to a Node-API value primitive.
+ ///
+ /// If the instance is _empty_, this returns `nullptr`.
+ operator napi_value() const;
+
+ /// Tests if this value strictly equals another value.
+ bool operator ==(const Value& other) const;
+
+ /// Tests if this value does not strictly equal another value.
+ bool operator !=(const Value& other) const;
+
+ /// Tests if this value strictly equals another value.
+ bool StrictEquals(const Value& other) const;
+
+ /// Gets the environment the value is associated with.
+ Napi::Env Env() const;
+
+ /// Checks if the value is empty (uninitialized).
+ ///
+ /// An empty value is invalid, and most attempts to perform an operation on an empty value
+ /// will result in an exception. Note an empty value is distinct from JavaScript `null` or
+ /// `undefined`, which are valid values.
+ ///
+ /// When C++ exceptions are disabled at compile time, a method with a `Value` return type may
+ /// return an empty value to indicate a pending exception. So when not using C++ exceptions,
+ /// callers should check whether the value is empty before attempting to use it.
+ bool IsEmpty() const;
+
+ napi_valuetype Type() const; ///< Gets the type of the value.
+
+ bool IsUndefined() const; ///< Tests if a value is an undefined JavaScript value.
+ bool IsNull() const; ///< Tests if a value is a null JavaScript value.
+ bool IsBoolean() const; ///< Tests if a value is a JavaScript boolean.
+ bool IsNumber() const; ///< Tests if a value is a JavaScript number.
+#if NAPI_VERSION > 5
+ bool IsBigInt() const; ///< Tests if a value is a JavaScript bigint.
+#endif // NAPI_VERSION > 5
+#if (NAPI_VERSION > 4)
+ bool IsDate() const; ///< Tests if a value is a JavaScript date.
+#endif
+ bool IsString() const; ///< Tests if a value is a JavaScript string.
+ bool IsSymbol() const; ///< Tests if a value is a JavaScript symbol.
+ bool IsArray() const; ///< Tests if a value is a JavaScript array.
+ bool IsArrayBuffer() const; ///< Tests if a value is a JavaScript array buffer.
+ bool IsTypedArray() const; ///< Tests if a value is a JavaScript typed array.
+ bool IsObject() const; ///< Tests if a value is a JavaScript object.
+ bool IsFunction() const; ///< Tests if a value is a JavaScript function.
+ bool IsPromise() const; ///< Tests if a value is a JavaScript promise.
+ bool IsDataView() const; ///< Tests if a value is a JavaScript data view.
+ bool IsBuffer() const; ///< Tests if a value is a Node buffer.
+ bool IsExternal() const; ///< Tests if a value is a pointer to external data.
+
+ /// Casts to another type of `Napi::Value`, when the actual type is known or assumed.
+ ///
+ /// This conversion does NOT coerce the type. Calling any methods inappropriate for the actual
+ /// value type will throw `Napi::Error`.
+ template <typename T> T As() const;
+
+ Boolean ToBoolean() const; ///< Coerces a value to a JavaScript boolean.
+ Number ToNumber() const; ///< Coerces a value to a JavaScript number.
+ String ToString() const; ///< Coerces a value to a JavaScript string.
+ Object ToObject() const; ///< Coerces a value to a JavaScript object.
+
+ protected:
+ /// !cond INTERNAL
+ napi_env _env;
+ napi_value _value;
+ /// !endcond
+ };
+
+ /// A JavaScript boolean value.
+ class Boolean : public Value {
+ public:
+ static Boolean New(napi_env env, ///< Node-API environment
+ bool value ///< Boolean value
+ );
+
+ Boolean(); ///< Creates a new _empty_ Boolean instance.
+ Boolean(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ operator bool() const; ///< Converts a Boolean value to a boolean primitive.
+ bool Value() const; ///< Converts a Boolean value to a boolean primitive.
+ };
+
+ /// A JavaScript number value.
+ class Number : public Value {
+ public:
+ static Number New(napi_env env, ///< Node-API environment
+ double value ///< Number value
+ );
+
+ Number(); ///< Creates a new _empty_ Number instance.
+ Number(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ operator int32_t()
+ const; ///< Converts a Number value to a 32-bit signed integer value.
+ operator uint32_t()
+ const; ///< Converts a Number value to a 32-bit unsigned integer value.
+ operator int64_t()
+ const; ///< Converts a Number value to a 64-bit signed integer value.
+ operator float()
+ const; ///< Converts a Number value to a 32-bit floating-point value.
+ operator double()
+ const; ///< Converts a Number value to a 64-bit floating-point value.
+
+ int32_t Int32Value()
+ const; ///< Converts a Number value to a 32-bit signed integer value.
+ uint32_t Uint32Value()
+ const; ///< Converts a Number value to a 32-bit unsigned integer value.
+ int64_t Int64Value()
+ const; ///< Converts a Number value to a 64-bit signed integer value.
+ float FloatValue()
+ const; ///< Converts a Number value to a 32-bit floating-point value.
+ double DoubleValue()
+ const; ///< Converts a Number value to a 64-bit floating-point value.
+ };
+
+#if NAPI_VERSION > 5
+ /// A JavaScript bigint value.
+ class BigInt : public Value {
+ public:
+ static BigInt New(napi_env env, ///< Node-API environment
+ int64_t value ///< Number value
+ );
+ static BigInt New(napi_env env, ///< Node-API environment
+ uint64_t value ///< Number value
+ );
+
+ /// Creates a new BigInt object using a specified sign bit and a
+ /// specified list of digits/words.
+ /// The resulting number is calculated as:
+ /// (-1)^sign_bit * (words[0] * (2^64)^0 + words[1] * (2^64)^1 + ...)
+ static BigInt New(napi_env env, ///< Node-API environment
+ int sign_bit, ///< Sign bit. 1 if negative.
+ size_t word_count, ///< Number of words in array
+ const uint64_t* words ///< Array of words
+ );
+
+ BigInt(); ///< Creates a new _empty_ BigInt instance.
+ BigInt(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ int64_t Int64Value(bool* lossless)
+ const; ///< Converts a BigInt value to a 64-bit signed integer value.
+ uint64_t Uint64Value(bool* lossless)
+ const; ///< Converts a BigInt value to a 64-bit unsigned integer value.
+
+ size_t WordCount() const; ///< The number of 64-bit words needed to store
+ ///< the result of ToWords().
+
+ /// Writes the contents of this BigInt to a specified memory location.
+ /// `sign_bit` must be provided and will be set to 1 if this BigInt is
+ /// negative.
+ /// `*word_count` has to be initialized to the length of the `words` array.
+ /// Upon return, it will be set to the actual number of words that would
+ /// be needed to store this BigInt (i.e. the return value of `WordCount()`).
+ void ToWords(int* sign_bit, size_t* word_count, uint64_t* words);
+ };
+#endif // NAPI_VERSION > 5
+
+#if (NAPI_VERSION > 4)
+ /// A JavaScript date value.
+ class Date : public Value {
+ public:
+ /// Creates a new Date value from a double primitive.
+ static Date New(napi_env env, ///< Node-API environment
+ double value ///< Number value
+ );
+
+ Date(); ///< Creates a new _empty_ Date instance.
+ Date(napi_env env, napi_value value); ///< Wraps a Node-API value primitive.
+ operator double() const; ///< Converts a Date value to double primitive
+
+ double ValueOf() const; ///< Converts a Date value to a double primitive.
+ };
+ #endif
+
+ /// A JavaScript string or symbol value (that can be used as a property name).
+ class Name : public Value {
+ public:
+ Name(); ///< Creates a new _empty_ Name instance.
+ Name(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+ };
+
+ /// A JavaScript string value.
+ class String : public Name {
+ public:
+ /// Creates a new String value from a UTF-8 encoded C++ string.
+ static String New(napi_env env, ///< Node-API environment
+ const std::string& value ///< UTF-8 encoded C++ string
+ );
+
+ /// Creates a new String value from a UTF-16 encoded C++ string.
+ static String New(napi_env env, ///< Node-API environment
+ const std::u16string& value ///< UTF-16 encoded C++ string
+ );
+
+ /// Creates a new String value from a UTF-8 encoded C string.
+ static String New(
+ napi_env env, ///< Node-API environment
+ const char* value ///< UTF-8 encoded null-terminated C string
+ );
+
+ /// Creates a new String value from a UTF-16 encoded C string.
+ static String New(
+ napi_env env, ///< Node-API environment
+ const char16_t* value ///< UTF-16 encoded null-terminated C string
+ );
+
+ /// Creates a new String value from a UTF-8 encoded C string with specified
+ /// length.
+ static String New(napi_env env, ///< Node-API environment
+ const char* value, ///< UTF-8 encoded C string (not
+ ///< necessarily null-terminated)
+ size_t length ///< length of the string in bytes
+ );
+
+ /// Creates a new String value from a UTF-16 encoded C string with specified
+ /// length.
+ static String New(
+ napi_env env, ///< Node-API environment
+ const char16_t* value, ///< UTF-16 encoded C string (not necessarily
+ ///< null-terminated)
+ size_t length ///< Length of the string in 2-byte code units
+ );
+
+ /// Creates a new String based on the original object's type.
+ ///
+ /// `value` may be any of:
+ /// - const char* (encoded using UTF-8, null-terminated)
+ /// - const char16_t* (encoded using UTF-16-LE, null-terminated)
+ /// - std::string (encoded using UTF-8)
+ /// - std::u16string
+ template <typename T>
+ static String From(napi_env env, const T& value);
+
+ String(); ///< Creates a new _empty_ String instance.
+ String(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ operator std::string()
+ const; ///< Converts a String value to a UTF-8 encoded C++ string.
+ operator std::u16string()
+ const; ///< Converts a String value to a UTF-16 encoded C++ string.
+ std::string Utf8Value()
+ const; ///< Converts a String value to a UTF-8 encoded C++ string.
+ std::u16string Utf16Value()
+ const; ///< Converts a String value to a UTF-16 encoded C++ string.
+ };
+
+ /// A JavaScript symbol value.
+ class Symbol : public Name {
+ public:
+ /// Creates a new Symbol value with an optional description.
+ static Symbol New(
+ napi_env env, ///< Node-API environment
+ const char* description =
+ nullptr ///< Optional UTF-8 encoded null-terminated C string
+ /// describing the symbol
+ );
+
+ /// Creates a new Symbol value with a description.
+ static Symbol New(
+ napi_env env, ///< Node-API environment
+ const std::string&
+ description ///< UTF-8 encoded C++ string describing the symbol
+ );
+
+ /// Creates a new Symbol value with a description.
+ static Symbol New(napi_env env, ///< Node-API environment
+ String description ///< String value describing the symbol
+ );
+
+ /// Creates a new Symbol value with a description.
+ static Symbol New(
+ napi_env env, ///< Node-API environment
+ napi_value description ///< String value describing the symbol
+ );
+
+ /// Get a public Symbol (e.g. Symbol.iterator).
+ static Symbol WellKnown(napi_env, const std::string& name);
+
+ Symbol(); ///< Creates a new _empty_ Symbol instance.
+ Symbol(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+ };
+
+ /// A JavaScript object value.
+ class Object : public Value {
+ public:
+ /// Enables property and element assignments using indexing syntax.
+ ///
+ /// Example:
+ ///
+ /// Napi::Value propertyValue = object1['A'];
+ /// object2['A'] = propertyValue;
+ /// Napi::Value elementValue = array[0];
+ /// array[1] = elementValue;
+ template <typename Key>
+ class PropertyLValue {
+ public:
+ /// Converts an L-value to a value.
+ operator Value() const;
+
+ /// Assigns a value to the property. The type of value can be
+ /// anything supported by `Object::Set`.
+ template <typename ValueType>
+ PropertyLValue& operator =(ValueType value);
+
+ private:
+ PropertyLValue() = delete;
+ PropertyLValue(Object object, Key key);
+ napi_env _env;
+ napi_value _object;
+ Key _key;
+
+ friend class Napi::Object;
+ };
+
+ /// Creates a new Object value.
+ static Object New(napi_env env ///< Node-API environment
+ );
+
+ Object(); ///< Creates a new _empty_ Object instance.
+ Object(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ /// Gets or sets a named property.
+ PropertyLValue<std::string> operator [](
+ const char* utf8name ///< UTF-8 encoded null-terminated property name
+ );
+
+ /// Gets or sets a named property.
+ PropertyLValue<std::string> operator [](
+ const std::string& utf8name ///< UTF-8 encoded property name
+ );
+
+ /// Gets or sets an indexed property or array element.
+ PropertyLValue<uint32_t> operator [](
+ uint32_t index /// Property / element index
+ );
+
+ /// Gets a named property.
+ Value operator [](
+ const char* utf8name ///< UTF-8 encoded null-terminated property name
+ ) const;
+
+ /// Gets a named property.
+ Value operator [](
+ const std::string& utf8name ///< UTF-8 encoded property name
+ ) const;
+
+ /// Gets an indexed property or array element.
+ Value operator [](
+ uint32_t index ///< Property / element index
+ ) const;
+
+ /// Checks whether a property is present.
+ bool Has(
+ napi_value key ///< Property key primitive
+ ) const;
+
+ /// Checks whether a property is present.
+ bool Has(
+ Value key ///< Property key
+ ) const;
+
+ /// Checks whether a named property is present.
+ bool Has(
+ const char* utf8name ///< UTF-8 encoded null-terminated property name
+ ) const;
+
+ /// Checks whether a named property is present.
+ bool Has(
+ const std::string& utf8name ///< UTF-8 encoded property name
+ ) const;
+
+ /// Checks whether a own property is present.
+ bool HasOwnProperty(
+ napi_value key ///< Property key primitive
+ ) const;
+
+ /// Checks whether a own property is present.
+ bool HasOwnProperty(
+ Value key ///< Property key
+ ) const;
+
+ /// Checks whether a own property is present.
+ bool HasOwnProperty(
+ const char* utf8name ///< UTF-8 encoded null-terminated property name
+ ) const;
+
+ /// Checks whether a own property is present.
+ bool HasOwnProperty(
+ const std::string& utf8name ///< UTF-8 encoded property name
+ ) const;
+
+ /// Gets a property.
+ Value Get(
+ napi_value key ///< Property key primitive
+ ) const;
+
+ /// Gets a property.
+ Value Get(
+ Value key ///< Property key
+ ) const;
+
+ /// Gets a named property.
+ Value Get(
+ const char* utf8name ///< UTF-8 encoded null-terminated property name
+ ) const;
+
+ /// Gets a named property.
+ Value Get(
+ const std::string& utf8name ///< UTF-8 encoded property name
+ ) const;
+
+ /// Sets a property.
+ template <typename ValueType>
+ bool Set(napi_value key, ///< Property key primitive
+ const ValueType& value ///< Property value primitive
+ );
+
+ /// Sets a property.
+ template <typename ValueType>
+ bool Set(Value key, ///< Property key
+ const ValueType& value ///< Property value
+ );
+
+ /// Sets a named property.
+ template <typename ValueType>
+ bool Set(
+ const char* utf8name, ///< UTF-8 encoded null-terminated property name
+ const ValueType& value);
+
+ /// Sets a named property.
+ template <typename ValueType>
+ bool Set(const std::string& utf8name, ///< UTF-8 encoded property name
+ const ValueType& value ///< Property value primitive
+ );
+
+ /// Delete property.
+ bool Delete(
+ napi_value key ///< Property key primitive
+ );
+
+ /// Delete property.
+ bool Delete(
+ Value key ///< Property key
+ );
+
+ /// Delete property.
+ bool Delete(
+ const char* utf8name ///< UTF-8 encoded null-terminated property name
+ );
+
+ /// Delete property.
+ bool Delete(
+ const std::string& utf8name ///< UTF-8 encoded property name
+ );
+
+ /// Checks whether an indexed property is present.
+ bool Has(
+ uint32_t index ///< Property / element index
+ ) const;
+
+ /// Gets an indexed property or array element.
+ Value Get(
+ uint32_t index ///< Property / element index
+ ) const;
+
+ /// Sets an indexed property or array element.
+ template <typename ValueType>
+ bool Set(uint32_t index, ///< Property / element index
+ const ValueType& value ///< Property value primitive
+ );
+
+ /// Deletes an indexed property or array element.
+ bool Delete(
+ uint32_t index ///< Property / element index
+ );
+
+ Array GetPropertyNames() const; ///< Get all property names
+
+ /// Defines a property on the object.
+ bool DefineProperty(
+ const PropertyDescriptor&
+ property ///< Descriptor for the property to be defined
+ );
+
+ /// Defines properties on the object.
+ bool DefineProperties(
+ const std::initializer_list<PropertyDescriptor>& properties
+ ///< List of descriptors for the properties to be defined
+ );
+
+ /// Defines properties on the object.
+ bool DefineProperties(
+ const std::vector<PropertyDescriptor>& properties
+ ///< Vector of descriptors for the properties to be defined
+ );
+
+ /// Checks if an object is an instance created by a constructor function.
+ ///
+ /// This is equivalent to the JavaScript `instanceof` operator.
+ bool InstanceOf(
+ const Function& constructor ///< Constructor function
+ ) const;
+
+ template <typename Finalizer, typename T>
+ inline void AddFinalizer(Finalizer finalizeCallback, T* data);
+
+ template <typename Finalizer, typename T, typename Hint>
+ inline void AddFinalizer(Finalizer finalizeCallback,
+ T* data,
+ Hint* finalizeHint);
+#if NAPI_VERSION >= 8
+ bool Freeze();
+ bool Seal();
+#endif // NAPI_VERSION >= 8
+ };
+
+ template <typename T>
+ class External : public Value {
+ public:
+ static External New(napi_env env, T* data);
+
+ // Finalizer must implement `void operator()(Env env, T* data)`.
+ template <typename Finalizer>
+ static External New(napi_env env,
+ T* data,
+ Finalizer finalizeCallback);
+ // Finalizer must implement `void operator()(Env env, T* data, Hint* hint)`.
+ template <typename Finalizer, typename Hint>
+ static External New(napi_env env,
+ T* data,
+ Finalizer finalizeCallback,
+ Hint* finalizeHint);
+
+ External();
+ External(napi_env env, napi_value value);
+
+ T* Data() const;
+ };
+
+ class Array : public Object {
+ public:
+ static Array New(napi_env env);
+ static Array New(napi_env env, size_t length);
+
+ Array();
+ Array(napi_env env, napi_value value);
+
+ uint32_t Length() const;
+ };
+
+ /// A JavaScript array buffer value.
+ class ArrayBuffer : public Object {
+ public:
+ /// Creates a new ArrayBuffer instance over a new automatically-allocated buffer.
+ static ArrayBuffer New(
+ napi_env env, ///< Node-API environment
+ size_t byteLength ///< Length of the buffer to be allocated, in bytes
+ );
+
+ /// Creates a new ArrayBuffer instance, using an external buffer with
+ /// specified byte length.
+ static ArrayBuffer New(
+ napi_env env, ///< Node-API environment
+ void* externalData, ///< Pointer to the external buffer to be used by
+ ///< the array
+ size_t byteLength ///< Length of the external buffer to be used by the
+ ///< array, in bytes
+ );
+
+ /// Creates a new ArrayBuffer instance, using an external buffer with
+ /// specified byte length.
+ template <typename Finalizer>
+ static ArrayBuffer New(
+ napi_env env, ///< Node-API environment
+ void* externalData, ///< Pointer to the external buffer to be used by
+ ///< the array
+ size_t byteLength, ///< Length of the external buffer to be used by the
+ ///< array,
+ /// in bytes
+ Finalizer finalizeCallback ///< Function to be called when the array
+ ///< buffer is destroyed;
+ /// must implement `void operator()(Env env,
+ /// void* externalData)`
+ );
+
+ /// Creates a new ArrayBuffer instance, using an external buffer with
+ /// specified byte length.
+ template <typename Finalizer, typename Hint>
+ static ArrayBuffer New(
+ napi_env env, ///< Node-API environment
+ void* externalData, ///< Pointer to the external buffer to be used by
+ ///< the array
+ size_t byteLength, ///< Length of the external buffer to be used by the
+ ///< array,
+ /// in bytes
+ Finalizer finalizeCallback, ///< Function to be called when the array
+ ///< buffer is destroyed;
+ /// must implement `void operator()(Env
+ /// env, void* externalData, Hint* hint)`
+ Hint* finalizeHint ///< Hint (second parameter) to be passed to the
+ ///< finalize callback
+ );
+
+ ArrayBuffer(); ///< Creates a new _empty_ ArrayBuffer instance.
+ ArrayBuffer(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ void* Data(); ///< Gets a pointer to the data buffer.
+ size_t ByteLength(); ///< Gets the length of the array buffer in bytes.
+
+#if NAPI_VERSION >= 7
+ bool IsDetached() const;
+ void Detach();
+#endif // NAPI_VERSION >= 7
+ };
+
+ /// A JavaScript typed-array value with unknown array type.
+ ///
+ /// For type-specific operations, cast to a `TypedArrayOf<T>` instance using the `As()`
+ /// method:
+ ///
+ /// Napi::TypedArray array = ...
+ /// if (t.TypedArrayType() == napi_int32_array) {
+ /// Napi::Int32Array int32Array = t.As<Napi::Int32Array>();
+ /// }
+ class TypedArray : public Object {
+ public:
+ TypedArray(); ///< Creates a new _empty_ TypedArray instance.
+ TypedArray(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ napi_typedarray_type TypedArrayType() const; ///< Gets the type of this typed-array.
+ Napi::ArrayBuffer ArrayBuffer() const; ///< Gets the backing array buffer.
+
+ uint8_t ElementSize() const; ///< Gets the size in bytes of one element in the array.
+ size_t ElementLength() const; ///< Gets the number of elements in the array.
+ size_t ByteOffset() const; ///< Gets the offset into the buffer where the array starts.
+ size_t ByteLength() const; ///< Gets the length of the array in bytes.
+
+ protected:
+ /// !cond INTERNAL
+ napi_typedarray_type _type;
+ size_t _length;
+
+ TypedArray(napi_env env, napi_value value, napi_typedarray_type type, size_t length);
+
+ static const napi_typedarray_type unknown_array_type = static_cast<napi_typedarray_type>(-1);
+
+ template <typename T>
+ static
+#if defined(NAPI_HAS_CONSTEXPR)
+ constexpr
+#endif
+ napi_typedarray_type TypedArrayTypeForPrimitiveType() {
+ return std::is_same<T, int8_t>::value ? napi_int8_array
+ : std::is_same<T, uint8_t>::value ? napi_uint8_array
+ : std::is_same<T, int16_t>::value ? napi_int16_array
+ : std::is_same<T, uint16_t>::value ? napi_uint16_array
+ : std::is_same<T, int32_t>::value ? napi_int32_array
+ : std::is_same<T, uint32_t>::value ? napi_uint32_array
+ : std::is_same<T, float>::value ? napi_float32_array
+ : std::is_same<T, double>::value ? napi_float64_array
+#if NAPI_VERSION > 5
+ : std::is_same<T, int64_t>::value ? napi_bigint64_array
+ : std::is_same<T, uint64_t>::value ? napi_biguint64_array
+#endif // NAPI_VERSION > 5
+ : unknown_array_type;
+ }
+ /// !endcond
+ };
+
+ /// A JavaScript typed-array value with known array type.
+ ///
+ /// Note while it is possible to create and access Uint8 "clamped" arrays using this class,
+ /// the _clamping_ behavior is only applied in JavaScript.
+ template <typename T>
+ class TypedArrayOf : public TypedArray {
+ public:
+ /// Creates a new TypedArray instance over a new automatically-allocated array buffer.
+ ///
+ /// The array type parameter can normally be omitted (because it is inferred from the template
+ /// parameter T), except when creating a "clamped" array:
+ ///
+ /// Uint8Array::New(env, length, napi_uint8_clamped_array)
+ static TypedArrayOf New(
+ napi_env env, ///< Node-API environment
+ size_t elementLength, ///< Length of the created array, as a number of
+ ///< elements
+#if defined(NAPI_HAS_CONSTEXPR)
+ napi_typedarray_type type =
+ TypedArray::TypedArrayTypeForPrimitiveType<T>()
+#else
+ napi_typedarray_type type
+#endif
+ ///< Type of array, if different from the default array type for the
+ ///< template parameter T.
+ );
+
+ /// Creates a new TypedArray instance over a provided array buffer.
+ ///
+ /// The array type parameter can normally be omitted (because it is inferred from the template
+ /// parameter T), except when creating a "clamped" array:
+ ///
+ /// Uint8Array::New(env, length, buffer, 0, napi_uint8_clamped_array)
+ static TypedArrayOf New(
+ napi_env env, ///< Node-API environment
+ size_t elementLength, ///< Length of the created array, as a number of
+ ///< elements
+ Napi::ArrayBuffer arrayBuffer, ///< Backing array buffer instance to use
+ size_t bufferOffset, ///< Offset into the array buffer where the
+ ///< typed-array starts
+#if defined(NAPI_HAS_CONSTEXPR)
+ napi_typedarray_type type =
+ TypedArray::TypedArrayTypeForPrimitiveType<T>()
+#else
+ napi_typedarray_type type
+#endif
+ ///< Type of array, if different from the default array type for the
+ ///< template parameter T.
+ );
+
+ TypedArrayOf(); ///< Creates a new _empty_ TypedArrayOf instance.
+ TypedArrayOf(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ T& operator [](size_t index); ///< Gets or sets an element in the array.
+ const T& operator [](size_t index) const; ///< Gets an element in the array.
+
+ /// Gets a pointer to the array's backing buffer.
+ ///
+ /// This is not necessarily the same as the `ArrayBuffer::Data()` pointer, because the
+ /// typed-array may have a non-zero `ByteOffset()` into the `ArrayBuffer`.
+ T* Data();
+
+ /// Gets a pointer to the array's backing buffer.
+ ///
+ /// This is not necessarily the same as the `ArrayBuffer::Data()` pointer, because the
+ /// typed-array may have a non-zero `ByteOffset()` into the `ArrayBuffer`.
+ const T* Data() const;
+
+ private:
+ T* _data;
+
+ TypedArrayOf(napi_env env,
+ napi_value value,
+ napi_typedarray_type type,
+ size_t length,
+ T* data);
+ };
+
+ /// The DataView provides a low-level interface for reading/writing multiple
+ /// number types in an ArrayBuffer irrespective of the platform's endianness.
+ class DataView : public Object {
+ public:
+ static DataView New(napi_env env,
+ Napi::ArrayBuffer arrayBuffer);
+ static DataView New(napi_env env,
+ Napi::ArrayBuffer arrayBuffer,
+ size_t byteOffset);
+ static DataView New(napi_env env,
+ Napi::ArrayBuffer arrayBuffer,
+ size_t byteOffset,
+ size_t byteLength);
+
+ DataView(); ///< Creates a new _empty_ DataView instance.
+ DataView(napi_env env,
+ napi_value value); ///< Wraps a Node-API value primitive.
+
+ Napi::ArrayBuffer ArrayBuffer() const; ///< Gets the backing array buffer.
+ size_t ByteOffset() const; ///< Gets the offset into the buffer where the array starts.
+ size_t ByteLength() const; ///< Gets the length of the array in bytes.
+
+ void* Data() const;
+
+ float GetFloat32(size_t byteOffset) const;
+ double GetFloat64(size_t byteOffset) const;
+ int8_t GetInt8(size_t byteOffset) const;
+ int16_t GetInt16(size_t byteOffset) const;
+ int32_t GetInt32(size_t byteOffset) const;
+ uint8_t GetUint8(size_t byteOffset) const;
+ uint16_t GetUint16(size_t byteOffset) const;
+ uint32_t GetUint32(size_t byteOffset) const;
+
+ void SetFloat32(size_t byteOffset, float value) const;
+ void SetFloat64(size_t byteOffset, double value) const;
+ void SetInt8(size_t byteOffset, int8_t value) const;
+ void SetInt16(size_t byteOffset, int16_t value) const;
+ void SetInt32(size_t byteOffset, int32_t value) const;
+ void SetUint8(size_t byteOffset, uint8_t value) const;
+ void SetUint16(size_t byteOffset, uint16_t value) const;
+ void SetUint32(size_t byteOffset, uint32_t value) const;
+
+ private:
+ template <typename T>
+ T ReadData(size_t byteOffset) const;
+
+ template <typename T>
+ void WriteData(size_t byteOffset, T value) const;
+
+ void* _data;
+ size_t _length;
+ };
+
+ class Function : public Object {
+ public:
+ using VoidCallback = void (*)(const CallbackInfo& info);
+ using Callback = Value (*)(const CallbackInfo& info);
+
+ template <VoidCallback cb>
+ static Function New(napi_env env,
+ const char* utf8name = nullptr,
+ void* data = nullptr);
+
+ template <Callback cb>
+ static Function New(napi_env env,
+ const char* utf8name = nullptr,
+ void* data = nullptr);
+
+ template <VoidCallback cb>
+ static Function New(napi_env env,
+ const std::string& utf8name,
+ void* data = nullptr);
+
+ template <Callback cb>
+ static Function New(napi_env env,
+ const std::string& utf8name,
+ void* data = nullptr);
+
+ /// Callable must implement operator() accepting a const CallbackInfo&
+ /// and return either void or Value.
+ template <typename Callable>
+ static Function New(napi_env env,
+ Callable cb,
+ const char* utf8name = nullptr,
+ void* data = nullptr);
+ /// Callable must implement operator() accepting a const CallbackInfo&
+ /// and return either void or Value.
+ template <typename Callable>
+ static Function New(napi_env env,
+ Callable cb,
+ const std::string& utf8name,
+ void* data = nullptr);
+
+ Function();
+ Function(napi_env env, napi_value value);
+
+ Value operator()(const std::initializer_list<napi_value>& args) const;
+
+ Value Call(const std::initializer_list<napi_value>& args) const;
+ Value Call(const std::vector<napi_value>& args) const;
+ Value Call(size_t argc, const napi_value* args) const;
+ Value Call(napi_value recv,
+ const std::initializer_list<napi_value>& args) const;
+ Value Call(napi_value recv, const std::vector<napi_value>& args) const;
+ Value Call(napi_value recv, size_t argc, const napi_value* args) const;
+
+ Value MakeCallback(napi_value recv,
+ const std::initializer_list<napi_value>& args,
+ napi_async_context context = nullptr) const;
+ Value MakeCallback(napi_value recv,
+ const std::vector<napi_value>& args,
+ napi_async_context context = nullptr) const;
+ Value MakeCallback(napi_value recv,
+ size_t argc,
+ const napi_value* args,
+ napi_async_context context = nullptr) const;
+
+ Object New(const std::initializer_list<napi_value>& args) const;
+ Object New(const std::vector<napi_value>& args) const;
+ Object New(size_t argc, const napi_value* args) const;
+ };
+
+ class Promise : public Object {
+ public:
+ class Deferred {
+ public:
+ static Deferred New(napi_env env);
+ Deferred(napi_env env);
+
+ Napi::Promise Promise() const;
+ Napi::Env Env() const;
+
+ void Resolve(napi_value value) const;
+ void Reject(napi_value value) const;
+
+ private:
+ napi_env _env;
+ napi_deferred _deferred;
+ napi_value _promise;
+ };
+
+ Promise(napi_env env, napi_value value);
+ };
+
+ template <typename T>
+ class Buffer : public Uint8Array {
+ public:
+ static Buffer<T> New(napi_env env, size_t length);
+ static Buffer<T> New(napi_env env, T* data, size_t length);
+
+ // Finalizer must implement `void operator()(Env env, T* data)`.
+ template <typename Finalizer>
+ static Buffer<T> New(napi_env env, T* data,
+ size_t length,
+ Finalizer finalizeCallback);
+ // Finalizer must implement `void operator()(Env env, T* data, Hint* hint)`.
+ template <typename Finalizer, typename Hint>
+ static Buffer<T> New(napi_env env, T* data,
+ size_t length,
+ Finalizer finalizeCallback,
+ Hint* finalizeHint);
+
+ static Buffer<T> Copy(napi_env env, const T* data, size_t length);
+
+ Buffer();
+ Buffer(napi_env env, napi_value value);
+ size_t Length() const;
+ T* Data() const;
+
+ private:
+ mutable size_t _length;
+ mutable T* _data;
+
+ Buffer(napi_env env, napi_value value, size_t length, T* data);
+ void EnsureInfo() const;
+ };
+
+ /// Holds a counted reference to a value; initially a weak reference unless otherwise specified,
+ /// may be changed to/from a strong reference by adjusting the refcount.
+ ///
+ /// The referenced value is not immediately destroyed when the reference count is zero; it is
+ /// merely then eligible for garbage-collection if there are no other references to the value.
+ template <typename T>
+ class Reference {
+ public:
+ static Reference<T> New(const T& value, uint32_t initialRefcount = 0);
+
+ Reference();
+ Reference(napi_env env, napi_ref ref);
+ ~Reference();
+
+ // A reference can be moved but cannot be copied.
+ Reference(Reference<T>&& other);
+ Reference<T>& operator =(Reference<T>&& other);
+ NAPI_DISALLOW_ASSIGN(Reference<T>)
+
+ operator napi_ref() const;
+ bool operator ==(const Reference<T> &other) const;
+ bool operator !=(const Reference<T> &other) const;
+
+ Napi::Env Env() const;
+ bool IsEmpty() const;
+
+ // Note when getting the value of a Reference it is usually correct to do so
+ // within a HandleScope so that the value handle gets cleaned up efficiently.
+ T Value() const;
+
+ uint32_t Ref();
+ uint32_t Unref();
+ void Reset();
+ void Reset(const T& value, uint32_t refcount = 0);
+
+ // Call this on a reference that is declared as static data, to prevent its
+ // destructor from running at program shutdown time, which would attempt to
+ // reset the reference when the environment is no longer valid. Avoid using
+ // this if at all possible. If you do need to use static data, MAKE SURE to
+ // warn your users that your addon is NOT threadsafe.
+ void SuppressDestruct();
+
+ protected:
+ Reference(const Reference<T>&);
+
+ /// !cond INTERNAL
+ napi_env _env;
+ napi_ref _ref;
+ /// !endcond
+
+ private:
+ bool _suppressDestruct;
+ };
+
+ class ObjectReference: public Reference<Object> {
+ public:
+ ObjectReference();
+ ObjectReference(napi_env env, napi_ref ref);
+
+ // A reference can be moved but cannot be copied.
+ ObjectReference(Reference<Object>&& other);
+ ObjectReference& operator =(Reference<Object>&& other);
+ ObjectReference(ObjectReference&& other);
+ ObjectReference& operator =(ObjectReference&& other);
+ NAPI_DISALLOW_ASSIGN(ObjectReference)
+
+ Napi::Value Get(const char* utf8name) const;
+ Napi::Value Get(const std::string& utf8name) const;
+ bool Set(const char* utf8name, napi_value value);
+ bool Set(const char* utf8name, Napi::Value value);
+ bool Set(const char* utf8name, const char* utf8value);
+ bool Set(const char* utf8name, bool boolValue);
+ bool Set(const char* utf8name, double numberValue);
+ bool Set(const std::string& utf8name, napi_value value);
+ bool Set(const std::string& utf8name, Napi::Value value);
+ bool Set(const std::string& utf8name, std::string& utf8value);
+ bool Set(const std::string& utf8name, bool boolValue);
+ bool Set(const std::string& utf8name, double numberValue);
+
+ Napi::Value Get(uint32_t index) const;
+ bool Set(uint32_t index, const napi_value value);
+ bool Set(uint32_t index, const Napi::Value value);
+ bool Set(uint32_t index, const char* utf8value);
+ bool Set(uint32_t index, const std::string& utf8value);
+ bool Set(uint32_t index, bool boolValue);
+ bool Set(uint32_t index, double numberValue);
+
+ protected:
+ ObjectReference(const ObjectReference&);
+ };
+
+ class FunctionReference: public Reference<Function> {
+ public:
+ FunctionReference();
+ FunctionReference(napi_env env, napi_ref ref);
+
+ // A reference can be moved but cannot be copied.
+ FunctionReference(Reference<Function>&& other);
+ FunctionReference& operator =(Reference<Function>&& other);
+ FunctionReference(FunctionReference&& other);
+ FunctionReference& operator =(FunctionReference&& other);
+ NAPI_DISALLOW_ASSIGN_COPY(FunctionReference)
+
+ Napi::Value operator ()(const std::initializer_list<napi_value>& args) const;
+
+ Napi::Value Call(const std::initializer_list<napi_value>& args) const;
+ Napi::Value Call(const std::vector<napi_value>& args) const;
+ Napi::Value Call(napi_value recv, const std::initializer_list<napi_value>& args) const;
+ Napi::Value Call(napi_value recv, const std::vector<napi_value>& args) const;
+ Napi::Value Call(napi_value recv, size_t argc, const napi_value* args) const;
+
+ Napi::Value MakeCallback(napi_value recv,
+ const std::initializer_list<napi_value>& args,
+ napi_async_context context = nullptr) const;
+ Napi::Value MakeCallback(napi_value recv,
+ const std::vector<napi_value>& args,
+ napi_async_context context = nullptr) const;
+ Napi::Value MakeCallback(napi_value recv,
+ size_t argc,
+ const napi_value* args,
+ napi_async_context context = nullptr) const;
+
+ Object New(const std::initializer_list<napi_value>& args) const;
+ Object New(const std::vector<napi_value>& args) const;
+ };
+
+ // Shortcuts to creating a new reference with inferred type and refcount = 0.
+ template <typename T> Reference<T> Weak(T value);
+ ObjectReference Weak(Object value);
+ FunctionReference Weak(Function value);
+
+ // Shortcuts to creating a new reference with inferred type and refcount = 1.
+ template <typename T> Reference<T> Persistent(T value);
+ ObjectReference Persistent(Object value);
+ FunctionReference Persistent(Function value);
+
+ /// A persistent reference to a JavaScript error object. Use of this class
+ /// depends somewhat on whether C++ exceptions are enabled at compile time.
+ ///
+ /// ### Handling Errors With C++ Exceptions
+ ///
+ /// If C++ exceptions are enabled, then the `Error` class extends
+ /// `std::exception` and enables integrated error-handling for C++ exceptions
+ /// and JavaScript exceptions.
+ ///
+ /// If a Node-API call fails without executing any JavaScript code (for
+ /// example due to an invalid argument), then the Node-API wrapper
+ /// automatically converts and throws the error as a C++ exception of type
+ /// `Napi::Error`. Or if a JavaScript function called by C++ code via Node-API
+ /// throws a JavaScript exception, then the Node-API wrapper automatically
+ /// converts and throws it as a C++ exception of type `Napi::Error`.
+ ///
+ /// If a C++ exception of type `Napi::Error` escapes from a Node-API C++
+ /// callback, then the Node-API wrapper automatically converts and throws it
+ /// as a JavaScript exception. Therefore, catching a C++ exception of type
+ /// `Napi::Error` prevents a JavaScript exception from being thrown.
+ ///
+ /// #### Example 1A - Throwing a C++ exception:
+ ///
+ /// Napi::Env env = ...
+ /// throw Napi::Error::New(env, "Example exception");
+ ///
+ /// Following C++ statements will not be executed. The exception will bubble
+ /// up as a C++ exception of type `Napi::Error`, until it is either caught
+ /// while still in C++, or else automatically propataged as a JavaScript
+ /// exception when the callback returns to JavaScript.
+ ///
+ /// #### Example 2A - Propagating a Node-API C++ exception:
+ ///
+ /// Napi::Function jsFunctionThatThrows = someObj.As<Napi::Function>();
+ /// Napi::Value result = jsFunctionThatThrows({ arg1, arg2 });
+ ///
+ /// Following C++ statements will not be executed. The exception will bubble
+ /// up as a C++ exception of type `Napi::Error`, until it is either caught
+ /// while still in C++, or else automatically propagated as a JavaScript
+ /// exception when the callback returns to JavaScript.
+ ///
+ /// #### Example 3A - Handling a Node-API C++ exception:
+ ///
+ /// Napi::Function jsFunctionThatThrows = someObj.As<Napi::Function>();
+ /// Napi::Value result;
+ /// try {
+ /// result = jsFunctionThatThrows({ arg1, arg2 });
+ /// } catch (const Napi::Error& e) {
+ /// cerr << "Caught JavaScript exception: " + e.what();
+ /// }
+ ///
+ /// Since the exception was caught here, it will not be propagated as a
+ /// JavaScript exception.
+ ///
+ /// ### Handling Errors Without C++ Exceptions
+ ///
+ /// If C++ exceptions are disabled (by defining `NAPI_DISABLE_CPP_EXCEPTIONS`)
+ /// then this class does not extend `std::exception`, and APIs in the `Napi`
+ /// namespace do not throw C++ exceptions when they fail. Instead, they raise
+ /// _pending_ JavaScript exceptions and return _empty_ `Value`s. Calling code
+ /// should check `Value::IsEmpty()` before attempting to use a returned value,
+ /// and may use methods on the `Env` class to check for, get, and clear a
+ /// pending JavaScript exception. If the pending exception is not cleared, it
+ /// will be thrown when the native callback returns to JavaScript.
+ ///
+ /// #### Example 1B - Throwing a JS exception
+ ///
+ /// Napi::Env env = ...
+ /// Napi::Error::New(env, "Example
+ /// exception").ThrowAsJavaScriptException(); return;
+ ///
+ /// After throwing a JS exception, the code should generally return
+ /// immediately from the native callback, after performing any necessary
+ /// cleanup.
+ ///
+ /// #### Example 2B - Propagating a Node-API JS exception:
+ ///
+ /// Napi::Function jsFunctionThatThrows = someObj.As<Napi::Function>();
+ /// Napi::Value result = jsFunctionThatThrows({ arg1, arg2 });
+ /// if (result.IsEmpty()) return;
+ ///
+ /// An empty value result from a Node-API call indicates an error occurred,
+ /// and a JavaScript exception is pending. To let the exception propagate, the
+ /// code should generally return immediately from the native callback, after
+ /// performing any necessary cleanup.
+ ///
+ /// #### Example 3B - Handling a Node-API JS exception:
+ ///
+ /// Napi::Function jsFunctionThatThrows = someObj.As<Napi::Function>();
+ /// Napi::Value result = jsFunctionThatThrows({ arg1, arg2 });
+ /// if (result.IsEmpty()) {
+ /// Napi::Error e = env.GetAndClearPendingException();
+ /// cerr << "Caught JavaScript exception: " + e.Message();
+ /// }
+ ///
+ /// Since the exception was cleared here, it will not be propagated as a
+ /// JavaScript exception after the native callback returns.
+ class Error : public ObjectReference
+#ifdef NAPI_CPP_EXCEPTIONS
+ , public std::exception
+#endif // NAPI_CPP_EXCEPTIONS
+ {
+ public:
+ static Error New(napi_env env);
+ static Error New(napi_env env, const char* message);
+ static Error New(napi_env env, const std::string& message);
+
+ static NAPI_NO_RETURN void Fatal(const char* location, const char* message);
+
+ Error();
+ Error(napi_env env, napi_value value);
+
+ // An error can be moved or copied.
+ Error(Error&& other);
+ Error& operator =(Error&& other);
+ Error(const Error&);
+ Error& operator =(const Error&);
+
+ const std::string& Message() const NAPI_NOEXCEPT;
+ void ThrowAsJavaScriptException() const;
+
+#ifdef NAPI_CPP_EXCEPTIONS
+ const char* what() const NAPI_NOEXCEPT override;
+#endif // NAPI_CPP_EXCEPTIONS
+
+ protected:
+ /// !cond INTERNAL
+ using create_error_fn = napi_status (*)(napi_env envb,
+ napi_value code,
+ napi_value msg,
+ napi_value* result);
+
+ template <typename TError>
+ static TError New(napi_env env,
+ const char* message,
+ size_t length,
+ create_error_fn create_error);
+ /// !endcond
+
+ private:
+ mutable std::string _message;
+ };
+
+ class TypeError : public Error {
+ public:
+ static TypeError New(napi_env env, const char* message);
+ static TypeError New(napi_env env, const std::string& message);
+
+ TypeError();
+ TypeError(napi_env env, napi_value value);
+ };
+
+ class RangeError : public Error {
+ public:
+ static RangeError New(napi_env env, const char* message);
+ static RangeError New(napi_env env, const std::string& message);
+
+ RangeError();
+ RangeError(napi_env env, napi_value value);
+ };
+
+ class CallbackInfo {
+ public:
+ CallbackInfo(napi_env env, napi_callback_info info);
+ ~CallbackInfo();
+
+ // Disallow copying to prevent multiple free of _dynamicArgs
+ NAPI_DISALLOW_ASSIGN_COPY(CallbackInfo)
+
+ Napi::Env Env() const;
+ Value NewTarget() const;
+ bool IsConstructCall() const;
+ size_t Length() const;
+ const Value operator [](size_t index) const;
+ Value This() const;
+ void* Data() const;
+ void SetData(void* data);
+
+ private:
+ const size_t _staticArgCount = 6;
+ napi_env _env;
+ napi_callback_info _info;
+ napi_value _this;
+ size_t _argc;
+ napi_value* _argv;
+ napi_value _staticArgs[6];
+ napi_value* _dynamicArgs;
+ void* _data;
+ };
+
+ class PropertyDescriptor {
+ public:
+ using GetterCallback = Napi::Value (*)(const Napi::CallbackInfo& info);
+ using SetterCallback = void (*)(const Napi::CallbackInfo& info);
+
+#ifndef NODE_ADDON_API_DISABLE_DEPRECATED
+ template <typename Getter>
+ static PropertyDescriptor Accessor(const char* utf8name,
+ Getter getter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter>
+ static PropertyDescriptor Accessor(const std::string& utf8name,
+ Getter getter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter>
+ static PropertyDescriptor Accessor(napi_value name,
+ Getter getter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter>
+ static PropertyDescriptor Accessor(Name name,
+ Getter getter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter, typename Setter>
+ static PropertyDescriptor Accessor(const char* utf8name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter, typename Setter>
+ static PropertyDescriptor Accessor(const std::string& utf8name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter, typename Setter>
+ static PropertyDescriptor Accessor(napi_value name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter, typename Setter>
+ static PropertyDescriptor Accessor(Name name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Callable>
+ static PropertyDescriptor Function(const char* utf8name,
+ Callable cb,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Callable>
+ static PropertyDescriptor Function(const std::string& utf8name,
+ Callable cb,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Callable>
+ static PropertyDescriptor Function(napi_value name,
+ Callable cb,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Callable>
+ static PropertyDescriptor Function(Name name,
+ Callable cb,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+#endif // !NODE_ADDON_API_DISABLE_DEPRECATED
+
+ template <GetterCallback Getter>
+ static PropertyDescriptor Accessor(const char* utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+
+ template <GetterCallback Getter>
+ static PropertyDescriptor Accessor(const std::string& utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+
+ template <GetterCallback Getter>
+ static PropertyDescriptor Accessor(Name name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+
+ template <GetterCallback Getter, SetterCallback Setter>
+ static PropertyDescriptor Accessor(const char* utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+
+ template <GetterCallback Getter, SetterCallback Setter>
+ static PropertyDescriptor Accessor(const std::string& utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+
+ template <GetterCallback Getter, SetterCallback Setter>
+ static PropertyDescriptor Accessor(Name name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+
+ template <typename Getter>
+ static PropertyDescriptor Accessor(Napi::Env env,
+ Napi::Object object,
+ const char* utf8name,
+ Getter getter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter>
+ static PropertyDescriptor Accessor(Napi::Env env,
+ Napi::Object object,
+ const std::string& utf8name,
+ Getter getter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter>
+ static PropertyDescriptor Accessor(Napi::Env env,
+ Napi::Object object,
+ Name name,
+ Getter getter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter, typename Setter>
+ static PropertyDescriptor Accessor(Napi::Env env,
+ Napi::Object object,
+ const char* utf8name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter, typename Setter>
+ static PropertyDescriptor Accessor(Napi::Env env,
+ Napi::Object object,
+ const std::string& utf8name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Getter, typename Setter>
+ static PropertyDescriptor Accessor(Napi::Env env,
+ Napi::Object object,
+ Name name,
+ Getter getter,
+ Setter setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Callable>
+ static PropertyDescriptor Function(Napi::Env env,
+ Napi::Object object,
+ const char* utf8name,
+ Callable cb,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Callable>
+ static PropertyDescriptor Function(Napi::Env env,
+ Napi::Object object,
+ const std::string& utf8name,
+ Callable cb,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <typename Callable>
+ static PropertyDescriptor Function(Napi::Env env,
+ Napi::Object object,
+ Name name,
+ Callable cb,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor Value(const char* utf8name,
+ napi_value value,
+ napi_property_attributes attributes = napi_default);
+ static PropertyDescriptor Value(const std::string& utf8name,
+ napi_value value,
+ napi_property_attributes attributes = napi_default);
+ static PropertyDescriptor Value(napi_value name,
+ napi_value value,
+ napi_property_attributes attributes = napi_default);
+ static PropertyDescriptor Value(Name name,
+ Napi::Value value,
+ napi_property_attributes attributes = napi_default);
+
+ PropertyDescriptor(napi_property_descriptor desc);
+
+ operator napi_property_descriptor&();
+ operator const napi_property_descriptor&() const;
+
+ private:
+ napi_property_descriptor _desc;
+ };
+
+ /// Property descriptor for use with `ObjectWrap::DefineClass()`.
+ ///
+ /// This is different from the standalone `PropertyDescriptor` because it is specific to each
+ /// `ObjectWrap<T>` subclass. This prevents using descriptors from a different class when
+ /// defining a new class (preventing the callbacks from having incorrect `this` pointers).
+ template <typename T>
+ class ClassPropertyDescriptor {
+ public:
+ ClassPropertyDescriptor(napi_property_descriptor desc) : _desc(desc) {}
+
+ operator napi_property_descriptor&() { return _desc; }
+ operator const napi_property_descriptor&() const { return _desc; }
+
+ private:
+ napi_property_descriptor _desc;
+ };
+
+ template <typename T, typename TCallback>
+ struct MethodCallbackData {
+ TCallback callback;
+ void* data;
+ };
+
+ template <typename T, typename TGetterCallback, typename TSetterCallback>
+ struct AccessorCallbackData {
+ TGetterCallback getterCallback;
+ TSetterCallback setterCallback;
+ void* data;
+ };
+
+ template <typename T>
+ class InstanceWrap {
+ public:
+ using InstanceVoidMethodCallback = void (T::*)(const CallbackInfo& info);
+ using InstanceMethodCallback = Napi::Value (T::*)(const CallbackInfo& info);
+ using InstanceGetterCallback = Napi::Value (T::*)(const CallbackInfo& info);
+ using InstanceSetterCallback = void (T::*)(const CallbackInfo& info,
+ const Napi::Value& value);
+
+ using PropertyDescriptor = ClassPropertyDescriptor<T>;
+
+ static PropertyDescriptor InstanceMethod(const char* utf8name,
+ InstanceVoidMethodCallback method,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor InstanceMethod(const char* utf8name,
+ InstanceMethodCallback method,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor InstanceMethod(Symbol name,
+ InstanceVoidMethodCallback method,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor InstanceMethod(Symbol name,
+ InstanceMethodCallback method,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <InstanceVoidMethodCallback method>
+ static PropertyDescriptor InstanceMethod(const char* utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <InstanceMethodCallback method>
+ static PropertyDescriptor InstanceMethod(const char* utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <InstanceVoidMethodCallback method>
+ static PropertyDescriptor InstanceMethod(Symbol name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <InstanceMethodCallback method>
+ static PropertyDescriptor InstanceMethod(Symbol name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor InstanceAccessor(const char* utf8name,
+ InstanceGetterCallback getter,
+ InstanceSetterCallback setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor InstanceAccessor(Symbol name,
+ InstanceGetterCallback getter,
+ InstanceSetterCallback setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <InstanceGetterCallback getter, InstanceSetterCallback setter=nullptr>
+ static PropertyDescriptor InstanceAccessor(const char* utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <InstanceGetterCallback getter, InstanceSetterCallback setter=nullptr>
+ static PropertyDescriptor InstanceAccessor(Symbol name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor InstanceValue(const char* utf8name,
+ Napi::Value value,
+ napi_property_attributes attributes = napi_default);
+ static PropertyDescriptor InstanceValue(Symbol name,
+ Napi::Value value,
+ napi_property_attributes attributes = napi_default);
+
+ protected:
+ static void AttachPropData(napi_env env, napi_value value, const napi_property_descriptor* prop);
+
+ private:
+ using This = InstanceWrap<T>;
+
+ using InstanceVoidMethodCallbackData =
+ MethodCallbackData<T, InstanceVoidMethodCallback>;
+ using InstanceMethodCallbackData =
+ MethodCallbackData<T, InstanceMethodCallback>;
+ using InstanceAccessorCallbackData =
+ AccessorCallbackData<T, InstanceGetterCallback, InstanceSetterCallback>;
+
+ static napi_value InstanceVoidMethodCallbackWrapper(napi_env env, napi_callback_info info);
+ static napi_value InstanceMethodCallbackWrapper(napi_env env, napi_callback_info info);
+ static napi_value InstanceGetterCallbackWrapper(napi_env env, napi_callback_info info);
+ static napi_value InstanceSetterCallbackWrapper(napi_env env, napi_callback_info info);
+
+ template <InstanceSetterCallback method>
+ static napi_value WrappedMethod(napi_env env,
+ napi_callback_info info) NAPI_NOEXCEPT;
+
+ template <InstanceSetterCallback setter> struct SetterTag {};
+
+ template <InstanceSetterCallback setter>
+ static napi_callback WrapSetter(SetterTag<setter>) NAPI_NOEXCEPT {
+ return &This::WrappedMethod<setter>;
+ }
+ static napi_callback WrapSetter(SetterTag<nullptr>) NAPI_NOEXCEPT {
+ return nullptr;
+ }
+ };
+
+ /// Base class to be extended by C++ classes exposed to JavaScript; each C++ class instance gets
+ /// "wrapped" by a JavaScript object that is managed by this class.
+ ///
+ /// At initialization time, the `DefineClass()` method must be used to
+ /// hook up the accessor and method callbacks. It takes a list of
+ /// property descriptors, which can be constructed via the various
+ /// static methods on the base class.
+ ///
+ /// #### Example:
+ ///
+ /// class Example: public Napi::ObjectWrap<Example> {
+ /// public:
+ /// static void Initialize(Napi::Env& env, Napi::Object& target) {
+ /// Napi::Function constructor = DefineClass(env, "Example", {
+ /// InstanceAccessor<&Example::GetSomething, &Example::SetSomething>("value"),
+ /// InstanceMethod<&Example::DoSomething>("doSomething"),
+ /// });
+ /// target.Set("Example", constructor);
+ /// }
+ ///
+ /// Example(const Napi::CallbackInfo& info); // Constructor
+ /// Napi::Value GetSomething(const Napi::CallbackInfo& info);
+ /// void SetSomething(const Napi::CallbackInfo& info, const Napi::Value& value);
+ /// Napi::Value DoSomething(const Napi::CallbackInfo& info);
+ /// }
+ template <typename T>
+ class ObjectWrap : public InstanceWrap<T>, public Reference<Object> {
+ public:
+ ObjectWrap(const CallbackInfo& callbackInfo);
+ virtual ~ObjectWrap();
+
+ static T* Unwrap(Object wrapper);
+
+ // Methods exposed to JavaScript must conform to one of these callback signatures.
+ using StaticVoidMethodCallback = void (*)(const CallbackInfo& info);
+ using StaticMethodCallback = Napi::Value (*)(const CallbackInfo& info);
+ using StaticGetterCallback = Napi::Value (*)(const CallbackInfo& info);
+ using StaticSetterCallback = void (*)(const CallbackInfo& info,
+ const Napi::Value& value);
+
+ using PropertyDescriptor = ClassPropertyDescriptor<T>;
+
+ static Function DefineClass(Napi::Env env,
+ const char* utf8name,
+ const std::initializer_list<PropertyDescriptor>& properties,
+ void* data = nullptr);
+ static Function DefineClass(Napi::Env env,
+ const char* utf8name,
+ const std::vector<PropertyDescriptor>& properties,
+ void* data = nullptr);
+ static PropertyDescriptor StaticMethod(const char* utf8name,
+ StaticVoidMethodCallback method,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor StaticMethod(const char* utf8name,
+ StaticMethodCallback method,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor StaticMethod(Symbol name,
+ StaticVoidMethodCallback method,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor StaticMethod(Symbol name,
+ StaticMethodCallback method,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <StaticVoidMethodCallback method>
+ static PropertyDescriptor StaticMethod(const char* utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <StaticVoidMethodCallback method>
+ static PropertyDescriptor StaticMethod(Symbol name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <StaticMethodCallback method>
+ static PropertyDescriptor StaticMethod(const char* utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <StaticMethodCallback method>
+ static PropertyDescriptor StaticMethod(Symbol name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor StaticAccessor(const char* utf8name,
+ StaticGetterCallback getter,
+ StaticSetterCallback setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor StaticAccessor(Symbol name,
+ StaticGetterCallback getter,
+ StaticSetterCallback setter,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <StaticGetterCallback getter, StaticSetterCallback setter=nullptr>
+ static PropertyDescriptor StaticAccessor(const char* utf8name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ template <StaticGetterCallback getter, StaticSetterCallback setter=nullptr>
+ static PropertyDescriptor StaticAccessor(Symbol name,
+ napi_property_attributes attributes = napi_default,
+ void* data = nullptr);
+ static PropertyDescriptor StaticValue(const char* utf8name,
+ Napi::Value value,
+ napi_property_attributes attributes = napi_default);
+ static PropertyDescriptor StaticValue(Symbol name,
+ Napi::Value value,
+ napi_property_attributes attributes = napi_default);
+ virtual void Finalize(Napi::Env env);
+
+ private:
+ using This = ObjectWrap<T>;
+
+ static napi_value ConstructorCallbackWrapper(napi_env env, napi_callback_info info);
+ static napi_value StaticVoidMethodCallbackWrapper(napi_env env, napi_callback_info info);
+ static napi_value StaticMethodCallbackWrapper(napi_env env, napi_callback_info info);
+ static napi_value StaticGetterCallbackWrapper(napi_env env, napi_callback_info info);
+ static napi_value StaticSetterCallbackWrapper(napi_env env, napi_callback_info info);
+ static void FinalizeCallback(napi_env env, void* data, void* hint);
+ static Function DefineClass(Napi::Env env,
+ const char* utf8name,
+ const size_t props_count,
+ const napi_property_descriptor* props,
+ void* data = nullptr);
+
+ using StaticVoidMethodCallbackData =
+ MethodCallbackData<T, StaticVoidMethodCallback>;
+ using StaticMethodCallbackData =
+ MethodCallbackData<T, StaticMethodCallback>;
+
+ using StaticAccessorCallbackData =
+ AccessorCallbackData<T, StaticGetterCallback, StaticSetterCallback>;
+
+ template <StaticSetterCallback method>
+ static napi_value WrappedMethod(napi_env env,
+ napi_callback_info info) NAPI_NOEXCEPT;
+
+ template <StaticSetterCallback setter> struct StaticSetterTag {};
+
+ template <StaticSetterCallback setter>
+ static napi_callback WrapStaticSetter(StaticSetterTag<setter>)
+ NAPI_NOEXCEPT {
+ return &This::WrappedMethod<setter>;
+ }
+ static napi_callback WrapStaticSetter(StaticSetterTag<nullptr>)
+ NAPI_NOEXCEPT {
+ return nullptr;
+ }
+
+ bool _construction_failed = true;
+ };
+
+ class HandleScope {
+ public:
+ HandleScope(napi_env env, napi_handle_scope scope);
+ explicit HandleScope(Napi::Env env);
+ ~HandleScope();
+
+ // Disallow copying to prevent double close of napi_handle_scope
+ NAPI_DISALLOW_ASSIGN_COPY(HandleScope)
+
+ operator napi_handle_scope() const;
+
+ Napi::Env Env() const;
+
+ private:
+ napi_env _env;
+ napi_handle_scope _scope;
+ };
+
+ class EscapableHandleScope {
+ public:
+ EscapableHandleScope(napi_env env, napi_escapable_handle_scope scope);
+ explicit EscapableHandleScope(Napi::Env env);
+ ~EscapableHandleScope();
+
+ // Disallow copying to prevent double close of napi_escapable_handle_scope
+ NAPI_DISALLOW_ASSIGN_COPY(EscapableHandleScope)
+
+ operator napi_escapable_handle_scope() const;
+
+ Napi::Env Env() const;
+ Value Escape(napi_value escapee);
+
+ private:
+ napi_env _env;
+ napi_escapable_handle_scope _scope;
+ };
+
+#if (NAPI_VERSION > 2)
+ class CallbackScope {
+ public:
+ CallbackScope(napi_env env, napi_callback_scope scope);
+ CallbackScope(napi_env env, napi_async_context context);
+ virtual ~CallbackScope();
+
+ // Disallow copying to prevent double close of napi_callback_scope
+ NAPI_DISALLOW_ASSIGN_COPY(CallbackScope)
+
+ operator napi_callback_scope() const;
+
+ Napi::Env Env() const;
+
+ private:
+ napi_env _env;
+ napi_callback_scope _scope;
+ };
+#endif
+
+ class AsyncContext {
+ public:
+ explicit AsyncContext(napi_env env, const char* resource_name);
+ explicit AsyncContext(napi_env env, const char* resource_name, const Object& resource);
+ virtual ~AsyncContext();
+
+ AsyncContext(AsyncContext&& other);
+ AsyncContext& operator =(AsyncContext&& other);
+ NAPI_DISALLOW_ASSIGN_COPY(AsyncContext)
+
+ operator napi_async_context() const;
+
+ Napi::Env Env() const;
+
+ private:
+ napi_env _env;
+ napi_async_context _context;
+ };
+
+ class AsyncWorker {
+ public:
+ virtual ~AsyncWorker();
+
+ // An async worker can be moved but cannot be copied.
+ AsyncWorker(AsyncWorker&& other);
+ AsyncWorker& operator =(AsyncWorker&& other);
+ NAPI_DISALLOW_ASSIGN_COPY(AsyncWorker)
+
+ operator napi_async_work() const;
+
+ Napi::Env Env() const;
+
+ void Queue();
+ void Cancel();
+ void SuppressDestruct();
+
+ ObjectReference& Receiver();
+ FunctionReference& Callback();
+
+ virtual void OnExecute(Napi::Env env);
+ virtual void OnWorkComplete(Napi::Env env,
+ napi_status status);
+
+ protected:
+ explicit AsyncWorker(const Function& callback);
+ explicit AsyncWorker(const Function& callback,
+ const char* resource_name);
+ explicit AsyncWorker(const Function& callback,
+ const char* resource_name,
+ const Object& resource);
+ explicit AsyncWorker(const Object& receiver,
+ const Function& callback);
+ explicit AsyncWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name);
+ explicit AsyncWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name,
+ const Object& resource);
+
+ explicit AsyncWorker(Napi::Env env);
+ explicit AsyncWorker(Napi::Env env,
+ const char* resource_name);
+ explicit AsyncWorker(Napi::Env env,
+ const char* resource_name,
+ const Object& resource);
+
+ virtual void Execute() = 0;
+ virtual void OnOK();
+ virtual void OnError(const Error& e);
+ virtual void Destroy();
+ virtual std::vector<napi_value> GetResult(Napi::Env env);
+
+ void SetError(const std::string& error);
+
+ private:
+ static inline void OnAsyncWorkExecute(napi_env env, void* asyncworker);
+ static inline void OnAsyncWorkComplete(napi_env env,
+ napi_status status,
+ void* asyncworker);
+
+ napi_env _env;
+ napi_async_work _work;
+ ObjectReference _receiver;
+ FunctionReference _callback;
+ std::string _error;
+ bool _suppress_destruct;
+ };
+
+ #if (NAPI_VERSION > 3 && !defined(__wasm32__))
+ class ThreadSafeFunction {
+ public:
+ // This API may only be called from the main thread.
+ template <typename ResourceString>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename ContextType>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename Finalizer>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ Finalizer finalizeCallback);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename Finalizer,
+ typename FinalizerDataType>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename ContextType, typename Finalizer>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename ContextType,
+ typename Finalizer, typename FinalizerDataType>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename ContextType>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename Finalizer>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ Finalizer finalizeCallback);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename Finalizer,
+ typename FinalizerDataType>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename ContextType, typename Finalizer>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback);
+
+ // This API may only be called from the main thread.
+ template <typename ResourceString, typename ContextType,
+ typename Finalizer, typename FinalizerDataType>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data);
+
+ ThreadSafeFunction();
+ ThreadSafeFunction(napi_threadsafe_function tsFunctionValue);
+
+ operator napi_threadsafe_function() const;
+
+ // This API may be called from any thread.
+ napi_status BlockingCall() const;
+
+ // This API may be called from any thread.
+ template <typename Callback>
+ napi_status BlockingCall(Callback callback) const;
+
+ // This API may be called from any thread.
+ template <typename DataType, typename Callback>
+ napi_status BlockingCall(DataType* data, Callback callback) const;
+
+ // This API may be called from any thread.
+ napi_status NonBlockingCall() const;
+
+ // This API may be called from any thread.
+ template <typename Callback>
+ napi_status NonBlockingCall(Callback callback) const;
+
+ // This API may be called from any thread.
+ template <typename DataType, typename Callback>
+ napi_status NonBlockingCall(DataType* data, Callback callback) const;
+
+ // This API may only be called from the main thread.
+ void Ref(napi_env env) const;
+
+ // This API may only be called from the main thread.
+ void Unref(napi_env env) const;
+
+ // This API may be called from any thread.
+ napi_status Acquire() const;
+
+ // This API may be called from any thread.
+ napi_status Release();
+
+ // This API may be called from any thread.
+ napi_status Abort();
+
+ struct ConvertibleContext
+ {
+ template <class T>
+ operator T*() { return static_cast<T*>(context); }
+ void* context;
+ };
+
+ // This API may be called from any thread.
+ ConvertibleContext GetContext() const;
+
+ private:
+ using CallbackWrapper = std::function<void(Napi::Env, Napi::Function)>;
+
+ template <typename ResourceString, typename ContextType,
+ typename Finalizer, typename FinalizerDataType>
+ static ThreadSafeFunction New(napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data,
+ napi_finalize wrapper);
+
+ napi_status CallInternal(CallbackWrapper* callbackWrapper,
+ napi_threadsafe_function_call_mode mode) const;
+
+ static void CallJS(napi_env env,
+ napi_value jsCallback,
+ void* context,
+ void* data);
+
+ napi_threadsafe_function _tsfn;
+ };
+
+ // A TypedThreadSafeFunction by default has no context (nullptr) and can
+ // accept any type (void) to its CallJs.
+ template <typename ContextType = std::nullptr_t,
+ typename DataType = void,
+ void (*CallJs)(Napi::Env, Napi::Function, ContextType*, DataType*) =
+ nullptr>
+ class TypedThreadSafeFunction {
+ public:
+ // This API may only be called from the main thread.
+ // Helper function that returns nullptr if running Node-API 5+, otherwise a
+ // non-empty, no-op Function. This provides the ability to specify at
+ // compile-time a callback parameter to `New` that safely does no action
+ // when targeting _any_ Node-API version.
+#if NAPI_VERSION > 4
+ static std::nullptr_t EmptyFunctionFactory(Napi::Env env);
+#else
+ static Napi::Function EmptyFunctionFactory(Napi::Env env);
+#endif
+ static Napi::Function FunctionOrEmpty(Napi::Env env,
+ Napi::Function& callback);
+
+#if NAPI_VERSION > 4
+ // This API may only be called from the main thread.
+ // Creates a new threadsafe function with:
+ // Callback [missing] Resource [missing] Finalizer [missing]
+ template <typename ResourceString>
+ static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+ napi_env env,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context = nullptr);
+
+ // This API may only be called from the main thread.
+ // Creates a new threadsafe function with:
+ // Callback [missing] Resource [passed] Finalizer [missing]
+ template <typename ResourceString>
+ static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+ napi_env env,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context = nullptr);
+
+ // This API may only be called from the main thread.
+ // Creates a new threadsafe function with:
+ // Callback [missing] Resource [missing] Finalizer [passed]
+ template <typename ResourceString,
+ typename Finalizer,
+ typename FinalizerDataType = void>
+ static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+ napi_env env,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data = nullptr);
+
+ // This API may only be called from the main thread.
+ // Creates a new threadsafe function with:
+ // Callback [missing] Resource [passed] Finalizer [passed]
+ template <typename ResourceString,
+ typename Finalizer,
+ typename FinalizerDataType = void>
+ static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+ napi_env env,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data = nullptr);
+#endif
+
+ // This API may only be called from the main thread.
+ // Creates a new threadsafe function with:
+ // Callback [passed] Resource [missing] Finalizer [missing]
+ template <typename ResourceString>
+ static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+ napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context = nullptr);
+
+ // This API may only be called from the main thread.
+ // Creates a new threadsafe function with:
+ // Callback [passed] Resource [passed] Finalizer [missing]
+ template <typename ResourceString>
+ static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+ napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context = nullptr);
+
+ // This API may only be called from the main thread.
+ // Creates a new threadsafe function with:
+ // Callback [passed] Resource [missing] Finalizer [passed]
+ template <typename ResourceString,
+ typename Finalizer,
+ typename FinalizerDataType = void>
+ static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+ napi_env env,
+ const Function& callback,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data = nullptr);
+
+ // This API may only be called from the main thread.
+ // Creates a new threadsafe function with:
+ // Callback [passed] Resource [passed] Finalizer [passed]
+ template <typename CallbackType,
+ typename ResourceString,
+ typename Finalizer,
+ typename FinalizerDataType>
+ static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+ napi_env env,
+ CallbackType callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data = nullptr);
+
+ TypedThreadSafeFunction<ContextType, DataType, CallJs>();
+ TypedThreadSafeFunction<ContextType, DataType, CallJs>(
+ napi_threadsafe_function tsFunctionValue);
+
+ operator napi_threadsafe_function() const;
+
+ // This API may be called from any thread.
+ napi_status BlockingCall(DataType* data = nullptr) const;
+
+ // This API may be called from any thread.
+ napi_status NonBlockingCall(DataType* data = nullptr) const;
+
+ // This API may only be called from the main thread.
+ void Ref(napi_env env) const;
+
+ // This API may only be called from the main thread.
+ void Unref(napi_env env) const;
+
+ // This API may be called from any thread.
+ napi_status Acquire() const;
+
+ // This API may be called from any thread.
+ napi_status Release();
+
+ // This API may be called from any thread.
+ napi_status Abort();
+
+ // This API may be called from any thread.
+ ContextType* GetContext() const;
+
+ private:
+ template <typename ResourceString,
+ typename Finalizer,
+ typename FinalizerDataType>
+ static TypedThreadSafeFunction<ContextType, DataType, CallJs> New(
+ napi_env env,
+ const Function& callback,
+ const Object& resource,
+ ResourceString resourceName,
+ size_t maxQueueSize,
+ size_t initialThreadCount,
+ ContextType* context,
+ Finalizer finalizeCallback,
+ FinalizerDataType* data,
+ napi_finalize wrapper);
+
+ static void CallJsInternal(napi_env env,
+ napi_value jsCallback,
+ void* context,
+ void* data);
+
+ protected:
+ napi_threadsafe_function _tsfn;
+ };
+ template <typename DataType>
+ class AsyncProgressWorkerBase : public AsyncWorker {
+ public:
+ virtual void OnWorkProgress(DataType* data) = 0;
+ class ThreadSafeData {
+ public:
+ ThreadSafeData(AsyncProgressWorkerBase* asyncprogressworker, DataType* data)
+ : _asyncprogressworker(asyncprogressworker), _data(data) {}
+
+ AsyncProgressWorkerBase* asyncprogressworker() { return _asyncprogressworker; };
+ DataType* data() { return _data; };
+
+ private:
+ AsyncProgressWorkerBase* _asyncprogressworker;
+ DataType* _data;
+ };
+ void OnWorkComplete(Napi::Env env, napi_status status) override;
+ protected:
+ explicit AsyncProgressWorkerBase(const Object& receiver,
+ const Function& callback,
+ const char* resource_name,
+ const Object& resource,
+ size_t queue_size = 1);
+ virtual ~AsyncProgressWorkerBase();
+
+// Optional callback of Napi::ThreadSafeFunction only available after NAPI_VERSION 4.
+// Refs: https://github.com/nodejs/node/pull/27791
+#if NAPI_VERSION > 4
+ explicit AsyncProgressWorkerBase(Napi::Env env,
+ const char* resource_name,
+ const Object& resource,
+ size_t queue_size = 1);
+#endif
+
+ static inline void OnAsyncWorkProgress(Napi::Env env,
+ Napi::Function jsCallback,
+ void* data);
+
+ napi_status NonBlockingCall(DataType* data);
+
+ private:
+ ThreadSafeFunction _tsfn;
+ bool _work_completed = false;
+ napi_status _complete_status;
+ static inline void OnThreadSafeFunctionFinalize(Napi::Env env, void* data, AsyncProgressWorkerBase* context);
+ };
+
+ template<class T>
+ class AsyncProgressWorker : public AsyncProgressWorkerBase<void> {
+ public:
+ virtual ~AsyncProgressWorker();
+
+ class ExecutionProgress {
+ friend class AsyncProgressWorker;
+ public:
+ void Signal() const;
+ void Send(const T* data, size_t count) const;
+ private:
+ explicit ExecutionProgress(AsyncProgressWorker* worker) : _worker(worker) {}
+ AsyncProgressWorker* const _worker;
+ };
+
+ void OnWorkProgress(void*) override;
+
+ protected:
+ explicit AsyncProgressWorker(const Function& callback);
+ explicit AsyncProgressWorker(const Function& callback,
+ const char* resource_name);
+ explicit AsyncProgressWorker(const Function& callback,
+ const char* resource_name,
+ const Object& resource);
+ explicit AsyncProgressWorker(const Object& receiver,
+ const Function& callback);
+ explicit AsyncProgressWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name);
+ explicit AsyncProgressWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name,
+ const Object& resource);
+
+// Optional callback of Napi::ThreadSafeFunction only available after NAPI_VERSION 4.
+// Refs: https://github.com/nodejs/node/pull/27791
+#if NAPI_VERSION > 4
+ explicit AsyncProgressWorker(Napi::Env env);
+ explicit AsyncProgressWorker(Napi::Env env,
+ const char* resource_name);
+ explicit AsyncProgressWorker(Napi::Env env,
+ const char* resource_name,
+ const Object& resource);
+#endif
+ virtual void Execute(const ExecutionProgress& progress) = 0;
+ virtual void OnProgress(const T* data, size_t count) = 0;
+
+ private:
+ void Execute() override;
+ void Signal() const;
+ void SendProgress_(const T* data, size_t count);
+
+ std::mutex _mutex;
+ T* _asyncdata;
+ size_t _asyncsize;
+ };
+
+ template<class T>
+ class AsyncProgressQueueWorker : public AsyncProgressWorkerBase<std::pair<T*, size_t>> {
+ public:
+ virtual ~AsyncProgressQueueWorker() {};
+
+ class ExecutionProgress {
+ friend class AsyncProgressQueueWorker;
+ public:
+ void Signal() const;
+ void Send(const T* data, size_t count) const;
+ private:
+ explicit ExecutionProgress(AsyncProgressQueueWorker* worker) : _worker(worker) {}
+ AsyncProgressQueueWorker* const _worker;
+ };
+
+ void OnWorkComplete(Napi::Env env, napi_status status) override;
+ void OnWorkProgress(std::pair<T*, size_t>*) override;
+
+ protected:
+ explicit AsyncProgressQueueWorker(const Function& callback);
+ explicit AsyncProgressQueueWorker(const Function& callback,
+ const char* resource_name);
+ explicit AsyncProgressQueueWorker(const Function& callback,
+ const char* resource_name,
+ const Object& resource);
+ explicit AsyncProgressQueueWorker(const Object& receiver,
+ const Function& callback);
+ explicit AsyncProgressQueueWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name);
+ explicit AsyncProgressQueueWorker(const Object& receiver,
+ const Function& callback,
+ const char* resource_name,
+ const Object& resource);
+
+// Optional callback of Napi::ThreadSafeFunction only available after NAPI_VERSION 4.
+// Refs: https://github.com/nodejs/node/pull/27791
+#if NAPI_VERSION > 4
+ explicit AsyncProgressQueueWorker(Napi::Env env);
+ explicit AsyncProgressQueueWorker(Napi::Env env,
+ const char* resource_name);
+ explicit AsyncProgressQueueWorker(Napi::Env env,
+ const char* resource_name,
+ const Object& resource);
+#endif
+ virtual void Execute(const ExecutionProgress& progress) = 0;
+ virtual void OnProgress(const T* data, size_t count) = 0;
+
+ private:
+ void Execute() override;
+ void Signal() const;
+ void SendProgress_(const T* data, size_t count);
+ };
+ #endif // NAPI_VERSION > 3 && !defined(__wasm32__)
+
+ // Memory management.
+ class MemoryManagement {
+ public:
+ static int64_t AdjustExternalMemory(Env env, int64_t change_in_bytes);
+ };
+
+ // Version management
+ class VersionManagement {
+ public:
+ static uint32_t GetNapiVersion(Env env);
+ static const napi_node_version* GetNodeVersion(Env env);
+ };
+
+#if NAPI_VERSION > 5
+ template <typename T>
+ class Addon : public InstanceWrap<T> {
+ public:
+ static inline Object Init(Env env, Object exports);
+ static T* Unwrap(Object wrapper);
+
+ protected:
+ using AddonProp = ClassPropertyDescriptor<T>;
+ void DefineAddon(Object exports,
+ const std::initializer_list<AddonProp>& props);
+ Napi::Object DefineProperties(Object object,
+ const std::initializer_list<AddonProp>& props);
+
+ private:
+ Object entry_point_;
+ };
+#endif // NAPI_VERSION > 5
+
+} // namespace Napi
+
+// Inline implementations of all the above class methods are included here.
+#include "napi-inl.h"
+
+#endif // SRC_NAPI_H_
diff --git a/backend/node_modules/node-addon-api/node_api.gyp b/backend/node_modules/node-addon-api/node_api.gyp
new file mode 100644
index 0000000..4ff0ae7
--- /dev/null
+++ b/backend/node_modules/node-addon-api/node_api.gyp
@@ -0,0 +1,9 @@
+{
+ 'targets': [
+ {
+ 'target_name': 'nothing',
+ 'type': 'static_library',
+ 'sources': [ 'nothing.c' ]
+ }
+ ]
+}
diff --git a/backend/node_modules/node-addon-api/noexcept.gypi b/backend/node_modules/node-addon-api/noexcept.gypi
new file mode 100644
index 0000000..179f21f
--- /dev/null
+++ b/backend/node_modules/node-addon-api/noexcept.gypi
@@ -0,0 +1,16 @@
+{
+ 'defines': [ 'NAPI_DISABLE_CPP_EXCEPTIONS' ],
+ 'cflags': [ '-fno-exceptions' ],
+ 'cflags_cc': [ '-fno-exceptions' ],
+ 'msvs_settings': {
+ 'VCCLCompilerTool': {
+ 'ExceptionHandling': 0,
+ 'EnablePREfast': 'true',
+ },
+ },
+ 'xcode_settings': {
+ 'CLANG_CXX_LIBRARY': 'libc++',
+ 'MACOSX_DEPLOYMENT_TARGET': '10.7',
+ 'GCC_ENABLE_CPP_EXCEPTIONS': 'NO',
+ },
+}
diff --git a/backend/node_modules/node-addon-api/nothing.c b/backend/node_modules/node-addon-api/nothing.c
new file mode 100644
index 0000000..e69de29
diff --git a/backend/node_modules/node-addon-api/package-support.json b/backend/node_modules/node-addon-api/package-support.json
new file mode 100644
index 0000000..10d3607
--- /dev/null
+++ b/backend/node_modules/node-addon-api/package-support.json
@@ -0,0 +1,21 @@
+{
+ "versions": [
+ {
+ "version": "*",
+ "target": {
+ "node": "active"
+ },
+ "response": {
+ "type": "time-permitting",
+ "paid": false,
+ "contact": {
+ "name": "node-addon-api team",
+ "url": "https://github.com/nodejs/node-addon-api/issues"
+ }
+ },
+ "backing": [ { "project": "https://github.com/nodejs" },
+ { "foundation": "https://openjsf.org/" }
+ ]
+ }
+ ]
+}
diff --git a/backend/node_modules/node-addon-api/package.json b/backend/node_modules/node-addon-api/package.json
new file mode 100644
index 0000000..f4bd2ab
--- /dev/null
+++ b/backend/node_modules/node-addon-api/package.json
@@ -0,0 +1,393 @@
+{
+ "_from": "node-addon-api@^3.1.0",
+ "_id": "node-addon-api@3.2.1",
+ "_inBundle": false,
+ "_integrity": "sha512-mmcei9JghVNDYydghQmeDX8KoAm0FAiYyIcUt/N4nhyAipB17pllZQDOJD2fotxABnt4Mdz+dKTO7eftLg4d0A==",
+ "_location": "/node-addon-api",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "node-addon-api@^3.1.0",
+ "name": "node-addon-api",
+ "escapedName": "node-addon-api",
+ "rawSpec": "^3.1.0",
+ "saveSpec": null,
+ "fetchSpec": "^3.1.0"
+ },
+ "_requiredBy": [
+ "/bcrypt"
+ ],
+ "_resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-3.2.1.tgz",
+ "_shasum": "81325e0a2117789c0128dab65e7e38f07ceba161",
+ "_spec": "node-addon-api@^3.1.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/bcrypt",
+ "bugs": {
+ "url": "https://github.com/nodejs/node-addon-api/issues"
+ },
+ "bundleDependencies": false,
+ "contributors": [
+ {
+ "name": "Abhishek Kumar Singh",
+ "url": "https://github.com/abhi11210646"
+ },
+ {
+ "name": "Alba Mendez",
+ "url": "https://github.com/jmendeth"
+ },
+ {
+ "name": "András Timár, Dr",
+ "url": "https://github.com/timarandras"
+ },
+ {
+ "name": "Andrew Petersen",
+ "url": "https://github.com/kirbysayshi"
+ },
+ {
+ "name": "Anisha Rohra",
+ "url": "https://github.com/anisha-rohra"
+ },
+ {
+ "name": "Anna Henningsen",
+ "url": "https://github.com/addaleax"
+ },
+ {
+ "name": "Arnaud Botella",
+ "url": "https://github.com/BotellaA"
+ },
+ {
+ "name": "Arunesh Chandra",
+ "url": "https://github.com/aruneshchandra"
+ },
+ {
+ "name": "Azlan Mukhtar",
+ "url": "https://github.com/azlan"
+ },
+ {
+ "name": "Ben Berman",
+ "url": "https://github.com/rivertam"
+ },
+ {
+ "name": "Benjamin Byholm",
+ "url": "https://github.com/kkoopa"
+ },
+ {
+ "name": "Bill Gallafent",
+ "url": "https://github.com/gallafent"
+ },
+ {
+ "name": "blagoev",
+ "url": "https://github.com/blagoev"
+ },
+ {
+ "name": "Bruce A. MacNaughton",
+ "url": "https://github.com/bmacnaughton"
+ },
+ {
+ "name": "Cory Mickelson",
+ "url": "https://github.com/corymickelson"
+ },
+ {
+ "name": "Daniel Bevenius",
+ "url": "https://github.com/danbev"
+ },
+ {
+ "name": "Darshan Sen",
+ "url": "https://github.com/RaisinTen"
+ },
+ {
+ "name": "David Halls",
+ "url": "https://github.com/davedoesdev"
+ },
+ {
+ "name": "Dmitry Ashkadov",
+ "url": "https://github.com/dmitryash"
+ },
+ {
+ "name": "Dongjin Na",
+ "url": "https://github.com/nadongguri"
+ },
+ {
+ "name": "Ferdinand Holzer",
+ "url": "https://github.com/fholzer"
+ },
+ {
+ "name": "Eric Bickle",
+ "url": "https://github.com/ebickle"
+ },
+ {
+ "name": "Gabriel Schulhof",
+ "url": "https://github.com/gabrielschulhof"
+ },
+ {
+ "name": "Guenter Sandner",
+ "url": "https://github.com/gms1"
+ },
+ {
+ "name": "Gus Caplan",
+ "url": "https://github.com/devsnek"
+ },
+ {
+ "name": "Helio Frota",
+ "url": "https://github.com/helio-frota"
+ },
+ {
+ "name": "Hitesh Kanwathirtha",
+ "url": "https://github.com/digitalinfinity"
+ },
+ {
+ "name": "ikokostya",
+ "url": "https://github.com/ikokostya"
+ },
+ {
+ "name": "Jack Xia",
+ "url": "https://github.com/JckXia"
+ },
+ {
+ "name": "Jake Barnes",
+ "url": "https://github.com/DuBistKomisch"
+ },
+ {
+ "name": "Jake Yoon",
+ "url": "https://github.com/yjaeseok"
+ },
+ {
+ "name": "Jason Ginchereau",
+ "url": "https://github.com/jasongin"
+ },
+ {
+ "name": "Jeroen Janssen",
+ "url": "https://github.com/japj"
+ },
+ {
+ "name": "Jim Schlight",
+ "url": "https://github.com/jschlight"
+ },
+ {
+ "name": "Jinho Bang",
+ "url": "https://github.com/romandev"
+ },
+ {
+ "name": "José Expósito",
+ "url": "https://github.com/JoseExposito"
+ },
+ {
+ "name": "joshgarde",
+ "url": "https://github.com/joshgarde"
+ },
+ {
+ "name": "Kasumi Hanazuki",
+ "url": "https://github.com/hanazuki"
+ },
+ {
+ "name": "Kelvin",
+ "url": "https://github.com/kelvinhammond"
+ },
+ {
+ "name": "Kevin Eady",
+ "url": "https://github.com/KevinEady"
+ },
+ {
+ "name": "Kévin VOYER",
+ "url": "https://github.com/kecsou"
+ },
+ {
+ "name": "kidneysolo",
+ "url": "https://github.com/kidneysolo"
+ },
+ {
+ "name": "Koki Nishihara",
+ "url": "https://github.com/Nishikoh"
+ },
+ {
+ "name": "Konstantin Tarkus",
+ "url": "https://github.com/koistya"
+ },
+ {
+ "name": "Kyle Farnung",
+ "url": "https://github.com/kfarnung"
+ },
+ {
+ "name": "legendecas",
+ "url": "https://github.com/legendecas"
+ },
+ {
+ "name": "LongYinan",
+ "url": "https://github.com/Brooooooklyn"
+ },
+ {
+ "name": "Lovell Fuller",
+ "url": "https://github.com/lovell"
+ },
+ {
+ "name": "Luciano Martorella",
+ "url": "https://github.com/lmartorella"
+ },
+ {
+ "name": "mastergberry",
+ "url": "https://github.com/mastergberry"
+ },
+ {
+ "name": "Mathias Küsel",
+ "url": "https://github.com/mathiask88"
+ },
+ {
+ "name": "Matteo Collina",
+ "url": "https://github.com/mcollina"
+ },
+ {
+ "name": "Michael Dawson",
+ "url": "https://github.com/mhdawson"
+ },
+ {
+ "name": "Michael Price",
+ "url": "https://github.com/mikepricedev"
+ },
+ {
+ "name": "Michele Campus",
+ "url": "https://github.com/kYroL01"
+ },
+ {
+ "name": "Mikhail Cheshkov",
+ "url": "https://github.com/mcheshkov"
+ },
+ {
+ "name": "nempoBu4",
+ "url": "https://github.com/nempoBu4"
+ },
+ {
+ "name": "Nicola Del Gobbo",
+ "url": "https://github.com/NickNaso"
+ },
+ {
+ "name": "Nick Soggin",
+ "url": "https://github.com/iSkore"
+ },
+ {
+ "name": "Nikolai Vavilov",
+ "url": "https://github.com/seishun"
+ },
+ {
+ "name": "Nurbol Alpysbayev",
+ "url": "https://github.com/anurbol"
+ },
+ {
+ "name": "pacop",
+ "url": "https://github.com/pacop"
+ },
+ {
+ "name": "Philipp Renoth",
+ "url": "https://github.com/DaAitch"
+ },
+ {
+ "name": "Rolf Timmermans",
+ "url": "https://github.com/rolftimmermans"
+ },
+ {
+ "name": "Ross Weir",
+ "url": "https://github.com/ross-weir"
+ },
+ {
+ "name": "Ryuichi Okumura",
+ "url": "https://github.com/okuryu"
+ },
+ {
+ "name": "Sampson Gao",
+ "url": "https://github.com/sampsongao"
+ },
+ {
+ "name": "Sam Roberts",
+ "url": "https://github.com/sam-github"
+ },
+ {
+ "name": "Taylor Woll",
+ "url": "https://github.com/boingoing"
+ },
+ {
+ "name": "Thomas Gentilhomme",
+ "url": "https://github.com/fraxken"
+ },
+ {
+ "name": "Tim Rach",
+ "url": "https://github.com/timrach"
+ },
+ {
+ "name": "Tobias Nießen",
+ "url": "https://github.com/tniessen"
+ },
+ {
+ "name": "Tux3",
+ "url": "https://github.com/tux3"
+ },
+ {
+ "name": "Vlad Velmisov",
+ "url": "https://github.com/Velmisov"
+ },
+ {
+ "name": "Yohei Kishimoto",
+ "url": "https://github.com/morokosi"
+ },
+ {
+ "name": "Yulong Wang",
+ "url": "https://github.com/fs-eire"
+ },
+ {
+ "name": "Ziqiu Zhao",
+ "url": "https://github.com/ZzqiZQute"
+ }
+ ],
+ "dependencies": {},
+ "deprecated": false,
+ "description": "Node.js API (Node-API)",
+ "devDependencies": {
+ "benchmark": "^2.1.4",
+ "bindings": "^1.5.0",
+ "clang-format": "^1.4.0",
+ "fs-extra": "^9.0.1",
+ "pre-commit": "^1.2.2",
+ "safe-buffer": "^5.1.1"
+ },
+ "directories": {},
+ "files": [
+ "*.{c,h,gyp,gypi}",
+ "package-support.json",
+ "tools/"
+ ],
+ "gypfile": false,
+ "homepage": "https://github.com/nodejs/node-addon-api",
+ "keywords": [
+ "n-api",
+ "napi",
+ "addon",
+ "native",
+ "bindings",
+ "c",
+ "c++",
+ "nan",
+ "node-addon-api"
+ ],
+ "license": "MIT",
+ "main": "index.js",
+ "name": "node-addon-api",
+ "optionalDependencies": {},
+ "pre-commit": "lint",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/nodejs/node-addon-api.git"
+ },
+ "scripts": {
+ "benchmark": "node benchmark",
+ "dev": "node test",
+ "dev:incremental": "node test",
+ "doc": "doxygen doc/Doxyfile",
+ "lint": "node tools/clang-format",
+ "lint:fix": "node tools/clang-format --fix",
+ "prebenchmark": "node-gyp rebuild -C benchmark",
+ "predev": "node-gyp rebuild -C test --debug",
+ "predev:incremental": "node-gyp configure build -C test --debug",
+ "pretest": "node-gyp rebuild -C test",
+ "test": "node test"
+ },
+ "support": true,
+ "version": "3.2.1"
+}
diff --git a/backend/node_modules/node-addon-api/tools/README.md b/backend/node_modules/node-addon-api/tools/README.md
new file mode 100644
index 0000000..6b80e94
--- /dev/null
+++ b/backend/node_modules/node-addon-api/tools/README.md
@@ -0,0 +1,73 @@
+# Tools
+
+## clang-format
+
+The clang-format checking tools is designed to check changed lines of code compared to given git-refs.
+
+## Migration Script
+
+The migration tool is designed to reduce repetitive work in the migration process. However, the script is not aiming to convert every thing for you. There are usually some small fixes and major reconstruction required.
+
+### How To Use
+
+To run the conversion script, first make sure you have the latest `node-addon-api` in your `node_modules` directory.
+```
+npm install node-addon-api
+```
+
+Then run the script passing your project directory
+```
+node ./node_modules/node-addon-api/tools/conversion.js ./
+```
+
+After finish, recompile and debug things that are missed by the script.
+
+
+### Quick Fixes
+Here is the list of things that can be fixed easily.
+ 1. Change your methods' return value to void if it doesn't return value to JavaScript.
+ 2. Use `.` to access attribute or to invoke member function in Napi::Object instead of `->`.
+ 3. `Napi::New(env, value);` to `Napi::[Type]::New(env, value);
+
+
+### Major Reconstructions
+The implementation of `Napi::ObjectWrap` is significantly different from NAN's. `Napi::ObjectWrap` takes a pointer to the wrapped object and creates a reference to the wrapped object inside ObjectWrap constructor. `Napi::ObjectWrap` also associates wrapped object's instance methods to Javascript module instead of static methods like NAN.
+
+So if you use Nan::ObjectWrap in your module, you will need to execute the following steps.
+
+ 1. Convert your [ClassName]::New function to a constructor function that takes a `Napi::CallbackInfo`. Declare it as
+```
+[ClassName](const Napi::CallbackInfo& info);
+```
+and define it as
+```
+[ClassName]::[ClassName](const Napi::CallbackInfo& info) : Napi::ObjectWrap<[ClassName]>(info){
+ ...
+}
+```
+This way, the `Napi::ObjectWrap` constructor will be invoked after the object has been instantiated and `Napi::ObjectWrap` can use the `this` pointer to create a reference to the wrapped object.
+
+ 2. Move your original constructor code into the new constructor. Delete your original constructor.
+ 3. In your class initialization function, associate native methods in the following way.
+```
+Napi::FunctionReference constructor;
+
+void [ClassName]::Init(Napi::Env env, Napi::Object exports, Napi::Object module) {
+ Napi::HandleScope scope(env);
+ Napi::Function ctor = DefineClass(env, "Canvas", {
+ InstanceMethod<&[ClassName]::Func1>("Func1"),
+ InstanceMethod<&[ClassName]::Func2>("Func2"),
+ InstanceAccessor<&[ClassName]::ValueGetter>("Value"),
+ StaticMethod<&[ClassName]::StaticMethod>("MethodName"),
+ InstanceValue("Value", Napi::[Type]::New(env, value)),
+ });
+
+ constructor = Napi::Persistent(ctor);
+ constructor .SuppressDestruct();
+ exports.Set("[ClassName]", ctor);
+}
+```
+ 4. In function where you need to Unwrap the ObjectWrap in NAN like `[ClassName]* native = Nan::ObjectWrap::Unwrap<[ClassName]>(info.This());`, use `this` pointer directly as the unwrapped object as each ObjectWrap instance is associated with a unique object instance.
+
+
+If you still find issues after following this guide, please leave us an issue describing your problem and we will try to resolve it.
diff --git a/backend/node_modules/node-addon-api/tools/check-napi.js b/backend/node_modules/node-addon-api/tools/check-napi.js
new file mode 100644
index 0000000..48fdfc0
--- /dev/null
+++ b/backend/node_modules/node-addon-api/tools/check-napi.js
@@ -0,0 +1,100 @@
+'use strict';
+// Descend into a directory structure and, for each file matching *.node, output
+// based on the imports found in the file whether it's an N-API module or not.
+
+const fs = require('fs');
+const path = require('path');
+const child_process = require('child_process');
+
+// Read the output of the command, break it into lines, and use the reducer to
+// decide whether the file is an N-API module or not.
+function checkFile(file, command, argv, reducer) {
+ const child = child_process.spawn(command, argv, {
+ stdio: ['inherit', 'pipe', 'inherit']
+ });
+ let leftover = '';
+ let isNapi = undefined;
+ child.stdout.on('data', (chunk) => {
+ if (isNapi === undefined) {
+ chunk = (leftover + chunk.toString()).split(/[\r\n]+/);
+ leftover = chunk.pop();
+ isNapi = chunk.reduce(reducer, isNapi);
+ if (isNapi !== undefined) {
+ child.kill();
+ }
+ }
+ });
+ child.on('close', (code, signal) => {
+ if ((code === null && signal !== null) || (code !== 0)) {
+ console.log(
+ command + ' exited with code: ' + code + ' and signal: ' + signal);
+ } else {
+ // Green if it's a N-API module, red otherwise.
+ console.log(
+ '\x1b[' + (isNapi ? '42' : '41') + 'm' +
+ (isNapi ? ' N-API' : 'Not N-API') +
+ '\x1b[0m: ' + file);
+ }
+ });
+}
+
+// Use nm -a to list symbols.
+function checkFileUNIX(file) {
+ checkFile(file, 'nm', ['-a', file], (soFar, line) => {
+ if (soFar === undefined) {
+ line = line.match(/([0-9a-f]*)? ([a-zA-Z]) (.*$)/);
+ if (line[2] === 'U') {
+ if (/^napi/.test(line[3])) {
+ soFar = true;
+ }
+ }
+ }
+ return soFar;
+ });
+}
+
+// Use dumpbin /imports to list symbols.
+function checkFileWin32(file) {
+ checkFile(file, 'dumpbin', ['/imports', file], (soFar, line) => {
+ if (soFar === undefined) {
+ line = line.match(/([0-9a-f]*)? +([a-zA-Z0-9]) (.*$)/);
+ if (line && /^napi/.test(line[line.length - 1])) {
+ soFar = true;
+ }
+ }
+ return soFar;
+ });
+}
+
+// Descend into a directory structure and pass each file ending in '.node' to
+// one of the above checks, depending on the OS.
+function recurse(top) {
+ fs.readdir(top, (error, items) => {
+ if (error) {
+ throw ("error reading directory " + top + ": " + error);
+ }
+ items.forEach((item) => {
+ item = path.join(top, item);
+ fs.stat(item, ((item) => (error, stats) => {
+ if (error) {
+ throw ("error about " + item + ": " + error);
+ }
+ if (stats.isDirectory()) {
+ recurse(item);
+ } else if (/[.]node$/.test(item) &&
+ // Explicitly ignore files called 'nothing.node' because they are
+ // artefacts of node-addon-api having identified a version of
+ // Node.js that ships with a correct implementation of N-API.
+ path.basename(item) !== 'nothing.node') {
+ process.platform === 'win32' ?
+ checkFileWin32(item) :
+ checkFileUNIX(item);
+ }
+ })(item));
+ });
+ });
+}
+
+// Start with the directory given on the command line or the current directory
+// if nothing was given.
+recurse(process.argv.length > 3 ? process.argv[2] : '.');
diff --git a/backend/node_modules/node-addon-api/tools/clang-format.js b/backend/node_modules/node-addon-api/tools/clang-format.js
new file mode 100644
index 0000000..e970983
--- /dev/null
+++ b/backend/node_modules/node-addon-api/tools/clang-format.js
@@ -0,0 +1,67 @@
+#!/usr/bin/env node
+
+const spawn = require('child_process').spawnSync;
+const path = require('path');
+
+const filesToCheck = ['*.h', '*.cc'];
+const CLANG_FORMAT_START = process.env.CLANG_FORMAT_START || 'main';
+
+function main(args) {
+ let fix = false;
+ while (args.length > 0) {
+ switch (args[0]) {
+ case '-f':
+ case '--fix':
+ fix = true;
+ default:
+ }
+ args.shift();
+ }
+
+ let clangFormatPath = path.dirname(require.resolve('clang-format'));
+ const options = ['--binary=node_modules/.bin/clang-format', '--style=file'];
+ if (fix) {
+ options.push(CLANG_FORMAT_START);
+ } else {
+ options.push('--diff', CLANG_FORMAT_START);
+ }
+
+ const gitClangFormatPath = path.join(clangFormatPath,
+ 'bin/git-clang-format');
+ const result = spawn('python', [
+ gitClangFormatPath,
+ ...options,
+ '--',
+ ...filesToCheck
+ ], { encoding: 'utf-8' });
+
+ if (result.stderr) {
+ console.error('Error running git-clang-format:', result.stderr);
+ return 2;
+ }
+
+ const clangFormatOutput = result.stdout.trim();
+ // Bail fast if in fix mode.
+ if (fix) {
+ console.log(clangFormatOutput);
+ return 0;
+ }
+ // Detect if there is any complains from clang-format
+ if (clangFormatOutput !== '' &&
+ clangFormatOutput !== ('no modified files to format') &&
+ clangFormatOutput !== ('clang-format did not modify any files')) {
+ console.error(clangFormatOutput);
+ const fixCmd = 'npm run lint:fix';
+ console.error(`
+ ERROR: please run "${fixCmd}" to format changes in your commit
+ Note that when running the command locally, please keep your local
+ main branch and working branch up to date with nodejs/node-addon-api
+ to exclude un-related complains.
+ Or you can run "env CLANG_FORMAT_START=upstream/main ${fixCmd}".`);
+ return 1;
+ }
+}
+
+if (require.main === module) {
+ process.exitCode = main(process.argv.slice(2));
+}
diff --git a/backend/node_modules/node-addon-api/tools/conversion.js b/backend/node_modules/node-addon-api/tools/conversion.js
new file mode 100755
index 0000000..5aef2c3
--- /dev/null
+++ b/backend/node_modules/node-addon-api/tools/conversion.js
@@ -0,0 +1,309 @@
+#! /usr/bin/env node
+
+'use strict'
+
+const fs = require('fs');
+const path = require('path');
+
+const args = process.argv.slice(2);
+const dir = args[0];
+if (!dir) {
+ console.log('Usage: node ' + path.basename(__filename) + ' <target-dir>');
+ process.exit(1);
+}
+
+const NodeApiVersion = require('../package.json').version;
+
+const disable = args[1];
+if (disable != "--disable" && dir != "--disable") {
+ var ConfigFileOperations = {
+ 'package.json': [
+ [ /([ ]*)"dependencies": {/g, '$1"dependencies": {\n$1 "node-addon-api": "' + NodeApiVersion + '",'],
+ [ /[ ]*"nan": *"[^"]+"(,|)[\n\r]/g, '' ]
+ ],
+ 'binding.gyp': [
+ [ /([ ]*)'include_dirs': \[/g, '$1\'include_dirs\': [\n$1 \'<!(node -p "require(\\\'node-addon-api\\\').include_dir")\',' ],
+ [ /([ ]*)"include_dirs": \[/g, '$1"include_dirs": [\n$1 "<!(node -p \\"require(\'node-addon-api\').include_dir\\")",' ],
+ [ /[ ]*("|')<!\(node -e ("|'|\\"|\\')require\(("|'|\\"|\\')nan("|'|\\"|\\')\)("|'|\\"|\\')\)("|')(,|)[\r\n]/g, '' ],
+ [ /([ ]*)("|')target_name("|'): ("|')(.+?)("|'),/g, '$1$2target_name$2: $4$5$6,\n $2cflags!$2: [ $2-fno-exceptions$2 ],\n $2cflags_cc!$2: [ $2-fno-exceptions$2 ],\n $2xcode_settings$2: { $2GCC_ENABLE_CPP_EXCEPTIONS$2: $2YES$2,\n $2CLANG_CXX_LIBRARY$2: $2libc++$2,\n $2MACOSX_DEPLOYMENT_TARGET$2: $210.7$2,\n },\n $2msvs_settings$2: {\n $2VCCLCompilerTool$2: { $2ExceptionHandling$2: 1 },\n },' ],
+ ]
+ };
+} else {
+ var ConfigFileOperations = {
+ 'package.json': [
+ [ /([ ]*)"dependencies": {/g, '$1"dependencies": {\n$1 "node-addon-api": "' + NodeApiVersion + '",'],
+ [ /[ ]*"nan": *"[^"]+"(,|)[\n\r]/g, '' ]
+ ],
+ 'binding.gyp': [
+ [ /([ ]*)'include_dirs': \[/g, '$1\'include_dirs\': [\n$1 \'<!(node -p "require(\\\'node-addon-api\\\').include_dir")\',' ],
+ [ /([ ]*)"include_dirs": \[/g, '$1"include_dirs": [\n$1 "<!(node -p \'require(\\\"node-addon-api\\\").include_dir\')",' ],
+ [ /[ ]*("|')<!\(node -e ("|'|\\"|\\')require\(("|'|\\"|\\')nan("|'|\\"|\\')\)("|'|\\"|\\')\)("|')(,|)[\r\n]/g, '' ],
+ [ /([ ]*)("|')target_name("|'): ("|')(.+?)("|'),/g, '$1$2target_name$2: $4$5$6,\n $2cflags!$2: [ $2-fno-exceptions$2 ],\n $2cflags_cc!$2: [ $2-fno-exceptions$2 ],\n $2defines$2: [ $2NAPI_DISABLE_CPP_EXCEPTIONS$2 ],\n $2conditions$2: [\n [\'OS==\"win\"\', { $2defines$2: [ $2_HAS_EXCEPTIONS=1$2 ] }]\n ]' ],
+ ]
+ };
+}
+
+var SourceFileOperations = [
+ [ /Nan::SetMethod\(target,[\s]*\"(.*)\"[\s]*,[\s]*([^)]+)\)/g, 'exports.Set(Napi::String::New(env, \"$1\"), Napi::Function::New(env, $2))' ],
+
+ [ /v8::Local<v8::FunctionTemplate>\s+(\w+)\s*=\s*Nan::New<FunctionTemplate>\([\w\d:]+\);(?:\w+->Reset\(\1\))?\s+\1->SetClassName\(Nan::String::New\("(\w+)"\)\);/g, 'Napi::Function $1 = DefineClass(env, "$2", {' ],
+ [ /Local<FunctionTemplate>\s+(\w+)\s*=\s*Nan::New<FunctionTemplate>\([\w\d:]+\);\s+(\w+)\.Reset\((\1)\);\s+\1->SetClassName\((Nan::String::New|Nan::New<(v8::)*String>)\("(.+?)"\)\);/g, 'Napi::Function $1 = DefineClass(env, "$6", {'],
+ [ /Local<FunctionTemplate>\s+(\w+)\s*=\s*Nan::New<FunctionTemplate>\([\w\d:]+\);(?:\w+->Reset\(\1\))?\s+\1->SetClassName\(Nan::String::New\("(\w+)"\)\);/g, 'Napi::Function $1 = DefineClass(env, "$2", {' ],
+ [ /Nan::New<v8::FunctionTemplate>\(([\w\d:]+)\)->GetFunction\(\)/g, 'Napi::Function::New(env, $1)' ],
+ [ /Nan::New<FunctionTemplate>\(([\w\d:]+)\)->GetFunction()/g, 'Napi::Function::New(env, $1);' ],
+ [ /Nan::New<v8::FunctionTemplate>\(([\w\d:]+)\)/g, 'Napi::Function::New(env, $1)' ],
+ [ /Nan::New<FunctionTemplate>\(([\w\d:]+)\)/g, 'Napi::Function::New(env, $1)' ],
+
+ // FunctionTemplate to FunctionReference
+ [ /Nan::Persistent<(v8::)*FunctionTemplate>/g, 'Napi::FunctionReference' ],
+ [ /Nan::Persistent<(v8::)*Function>/g, 'Napi::FunctionReference' ],
+ [ /v8::Local<v8::FunctionTemplate>/g, 'Napi::FunctionReference' ],
+ [ /Local<FunctionTemplate>/g, 'Napi::FunctionReference' ],
+ [ /v8::FunctionTemplate/g, 'Napi::FunctionReference' ],
+ [ /FunctionTemplate/g, 'Napi::FunctionReference' ],
+
+
+ [ /([ ]*)Nan::SetPrototypeMethod\(\w+, "(\w+)", (\w+)\);/g, '$1InstanceMethod("$2", &$3),' ],
+ [ /([ ]*)(?:\w+\.Reset\(\w+\);\s+)?\(target\)\.Set\("(\w+)",\s*Nan::GetFunction\((\w+)\)\);/gm,
+ '});\n\n' +
+ '$1constructor = Napi::Persistent($3);\n' +
+ '$1constructor.SuppressDestruct();\n' +
+ '$1target.Set("$2", $3);' ],
+
+
+ // TODO: Other attribute combinations
+ [ /static_cast<PropertyAttribute>\(ReadOnly\s*\|\s*DontDelete\)/gm,
+ 'static_cast<napi_property_attributes>(napi_enumerable | napi_configurable)' ],
+
+ [ /([\w\d:<>]+?)::Cast\((.+?)\)/g, '$2.As<$1>()' ],
+
+ [ /\*Nan::Utf8String\(([^)]+)\)/g, '$1->As<Napi::String>().Utf8Value().c_str()' ],
+ [ /Nan::Utf8String +(\w+)\(([^)]+)\)/g, 'std::string $1 = $2.As<Napi::String>()' ],
+ [ /Nan::Utf8String/g, 'std::string' ],
+
+ [ /v8::String::Utf8Value (.+?)\((.+?)\)/g, 'Napi::String $1(env, $2)' ],
+ [ /String::Utf8Value (.+?)\((.+?)\)/g, 'Napi::String $1(env, $2)' ],
+ [ /\.length\(\)/g, '.Length()' ],
+
+ [ /Nan::MakeCallback\(([^,]+),[\s\\]+([^,]+),/gm, '$2.MakeCallback($1,' ],
+
+ [ /class\s+(\w+)\s*:\s*public\s+Nan::ObjectWrap/g, 'class $1 : public Napi::ObjectWrap<$1>' ],
+ [ /(\w+)\(([^\)]*)\)\s*:\s*Nan::ObjectWrap\(\)\s*(,)?/gm, '$1($2) : Napi::ObjectWrap<$1>()$3' ],
+
+ // HandleOKCallback to OnOK
+ [ /HandleOKCallback/g, 'OnOK' ],
+ // HandleErrorCallback to OnError
+ [ /HandleErrorCallback/g, 'OnError' ],
+
+ // ex. .As<Function>() to .As<Napi::Object>()
+ [ /\.As<v8::(Value|Boolean|String|Number|Object|Array|Symbol|External|Function)>\(\)/g, '.As<Napi::$1>()' ],
+ [ /\.As<(Value|Boolean|String|Number|Object|Array|Symbol|External|Function)>\(\)/g, '.As<Napi::$1>()' ],
+
+ // ex. Nan::New<Number>(info[0]) to Napi::Number::New(info[0])
+ [ /Nan::New<(v8::)*Integer>\((.+?)\)/g, 'Napi::Number::New(env, $2)' ],
+ [ /Nan::New\(([0-9\.]+)\)/g, 'Napi::Number::New(env, $1)' ],
+ [ /Nan::New<(v8::)*String>\("(.+?)"\)/g, 'Napi::String::New(env, "$2")' ],
+ [ /Nan::New\("(.+?)"\)/g, 'Napi::String::New(env, "$1")' ],
+ [ /Nan::New<(v8::)*(.+?)>\(\)/g, 'Napi::$2::New(env)' ],
+ [ /Nan::New<(.+?)>\(\)/g, 'Napi::$1::New(env)' ],
+ [ /Nan::New<(v8::)*(.+?)>\(/g, 'Napi::$2::New(env, ' ],
+ [ /Nan::New<(.+?)>\(/g, 'Napi::$1::New(env, ' ],
+ [ /Nan::NewBuffer\(/g, 'Napi::Buffer<char>::New(env, ' ],
+ // TODO: Properly handle this
+ [ /Nan::New\(/g, 'Napi::New(env, ' ],
+
+ [ /\.IsInt32\(\)/g, '.IsNumber()' ],
+ [ /->IsInt32\(\)/g, '.IsNumber()' ],
+
+
+ [ /(.+?)->BooleanValue\(\)/g, '$1.As<Napi::Boolean>().Value()' ],
+ [ /(.+?)->Int32Value\(\)/g, '$1.As<Napi::Number>().Int32Value()' ],
+ [ /(.+?)->Uint32Value\(\)/g, '$1.As<Napi::Number>().Uint32Value()' ],
+ [ /(.+?)->IntegerValue\(\)/g, '$1.As<Napi::Number>().Int64Value()' ],
+ [ /(.+?)->NumberValue\(\)/g, '$1.As<Napi::Number>().DoubleValue()' ],
+
+ // ex. Nan::To<bool>(info[0]) to info[0].Value()
+ [ /Nan::To<v8::(Boolean|String|Number|Object|Array|Symbol|Function)>\((.+?)\)/g, '$2.To<Napi::$1>()' ],
+ [ /Nan::To<(Boolean|String|Number|Object|Array|Symbol|Function)>\((.+?)\)/g, '$2.To<Napi::$1>()' ],
+ // ex. Nan::To<bool>(info[0]) to info[0].As<Napi::Boolean>().Value()
+ [ /Nan::To<bool>\((.+?)\)/g, '$1.As<Napi::Boolean>().Value()' ],
+ // ex. Nan::To<int>(info[0]) to info[0].As<Napi::Number>().Int32Value()
+ [ /Nan::To<int>\((.+?)\)/g, '$1.As<Napi::Number>().Int32Value()' ],
+ // ex. Nan::To<int32_t>(info[0]) to info[0].As<Napi::Number>().Int32Value()
+ [ /Nan::To<int32_t>\((.+?)\)/g, '$1.As<Napi::Number>().Int32Value()' ],
+ // ex. Nan::To<uint32_t>(info[0]) to info[0].As<Napi::Number>().Uint32Value()
+ [ /Nan::To<uint32_t>\((.+?)\)/g, '$1.As<Napi::Number>().Uint32Value()' ],
+ // ex. Nan::To<int64_t>(info[0]) to info[0].As<Napi::Number>().Int64Value()
+ [ /Nan::To<int64_t>\((.+?)\)/g, '$1.As<Napi::Number>().Int64Value()' ],
+ // ex. Nan::To<float>(info[0]) to info[0].As<Napi::Number>().FloatValue()
+ [ /Nan::To<float>\((.+?)\)/g, '$1.As<Napi::Number>().FloatValue()' ],
+ // ex. Nan::To<double>(info[0]) to info[0].As<Napi::Number>().DoubleValue()
+ [ /Nan::To<double>\((.+?)\)/g, '$1.As<Napi::Number>().DoubleValue()' ],
+
+ [ /Nan::New\((\w+)\)->HasInstance\((\w+)\)/g, '$2.InstanceOf($1.Value())' ],
+
+ [ /Nan::Has\(([^,]+),\s*/gm, '($1).Has(' ],
+ [ /\.Has\([\s|\\]*Nan::New<(v8::)*String>\(([^)]+)\)\)/gm, '.Has($1)' ],
+ [ /\.Has\([\s|\\]*Nan::New\(([^)]+)\)\)/gm, '.Has($1)' ],
+
+ [ /Nan::Get\(([^,]+),\s*/gm, '($1).Get(' ],
+ [ /\.Get\([\s|\\]*Nan::New<(v8::)*String>\(([^)]+)\)\)/gm, '.Get($1)' ],
+ [ /\.Get\([\s|\\]*Nan::New\(([^)]+)\)\)/gm, '.Get($1)' ],
+
+ [ /Nan::Set\(([^,]+),\s*/gm, '($1).Set(' ],
+ [ /\.Set\([\s|\\]*Nan::New<(v8::)*String>\(([^)]+)\)\s*,/gm, '.Set($1,' ],
+ [ /\.Set\([\s|\\]*Nan::New\(([^)]+)\)\s*,/gm, '.Set($1,' ],
+
+
+ // ex. node::Buffer::HasInstance(info[0]) to info[0].IsBuffer()
+ [ /node::Buffer::HasInstance\((.+?)\)/g, '$1.IsBuffer()' ],
+ // ex. node::Buffer::Length(info[0]) to info[0].Length()
+ [ /node::Buffer::Length\((.+?)\)/g, '$1.As<Napi::Buffer<char>>().Length()' ],
+ // ex. node::Buffer::Data(info[0]) to info[0].Data()
+ [ /node::Buffer::Data\((.+?)\)/g, '$1.As<Napi::Buffer<char>>().Data()' ],
+ [ /Nan::CopyBuffer\(/g, 'Napi::Buffer::Copy(env, ' ],
+
+ // Nan::AsyncQueueWorker(worker)
+ [ /Nan::AsyncQueueWorker\((.+)\);/g, '$1.Queue();' ],
+ [ /Nan::(Undefined|Null|True|False)\(\)/g, 'env.$1()' ],
+
+ // Nan::ThrowError(error) to Napi::Error::New(env, error).ThrowAsJavaScriptException()
+ [ /([ ]*)return Nan::Throw(\w*?)Error\((.+?)\);/g, '$1Napi::$2Error::New(env, $3).ThrowAsJavaScriptException();\n$1return env.Null();' ],
+ [ /Nan::Throw(\w*?)Error\((.+?)\);\n(\s*)return;/g, 'Napi::$1Error::New(env, $2).ThrowAsJavaScriptException();\n$3return env.Null();' ],
+ [ /Nan::Throw(\w*?)Error\((.+?)\);/g, 'Napi::$1Error::New(env, $2).ThrowAsJavaScriptException();\n' ],
+ // Nan::RangeError(error) to Napi::RangeError::New(env, error)
+ [ /Nan::(\w*?)Error\((.+)\)/g, 'Napi::$1Error::New(env, $2)' ],
+
+ [ /Nan::Set\((.+?),\n* *(.+?),\n* *(.+?),\n* *(.+?)\)/g, '$1.Set($2, $3, $4)' ],
+
+ [ /Nan::(Escapable)?HandleScope\s+(\w+)\s*;/g, 'Napi::$1HandleScope $2(env);' ],
+ [ /Nan::(Escapable)?HandleScope/g, 'Napi::$1HandleScope' ],
+ [ /Nan::ForceSet\(([^,]+), ?/g, '$1->DefineProperty(' ],
+ [ /\.ForceSet\(Napi::String::New\(env, "(\w+)"\),\s*?/g, '.DefineProperty("$1", ' ],
+ // [ /Nan::GetPropertyNames\(([^,]+)\)/, '$1->GetPropertyNames()' ],
+ [ /Nan::Equals\(([^,]+),/g, '$1.StrictEquals(' ],
+
+
+ [ /(.+)->Set\(/g, '$1.Set\(' ],
+
+
+ [ /Nan::Callback/g, 'Napi::FunctionReference' ],
+
+
+ [ /Nan::Persistent<Object>/g, 'Napi::ObjectReference' ],
+ [ /Nan::ADDON_REGISTER_FUNCTION_ARGS_TYPE target/g, 'Napi::Env& env, Napi::Object& target' ],
+
+ [ /(\w+)\*\s+(\w+)\s*=\s*Nan::ObjectWrap::Unwrap<\w+>\(info\.This\(\)\);/g, '$1* $2 = this;' ],
+ [ /Nan::ObjectWrap::Unwrap<(\w+)>\((.*)\);/g, '$2.Unwrap<$1>();' ],
+
+ [ /Nan::NAN_METHOD_RETURN_TYPE/g, 'void' ],
+ [ /NAN_INLINE/g, 'inline' ],
+
+ [ /Nan::NAN_METHOD_ARGS_TYPE/g, 'const Napi::CallbackInfo&' ],
+ [ /NAN_METHOD\(([\w\d:]+?)\)/g, 'Napi::Value $1(const Napi::CallbackInfo& info)'],
+ [ /static\s*NAN_GETTER\(([\w\d:]+?)\)/g, 'Napi::Value $1(const Napi::CallbackInfo& info)' ],
+ [ /NAN_GETTER\(([\w\d:]+?)\)/g, 'Napi::Value $1(const Napi::CallbackInfo& info)' ],
+ [ /static\s*NAN_SETTER\(([\w\d:]+?)\)/g, 'void $1(const Napi::CallbackInfo& info, const Napi::Value& value)' ],
+ [ /NAN_SETTER\(([\w\d:]+?)\)/g, 'void $1(const Napi::CallbackInfo& info, const Napi::Value& value)' ],
+ [ /void Init\((v8::)*Local<(v8::)*Object> exports\)/g, 'Napi::Object Init(Napi::Env env, Napi::Object exports)' ],
+ [ /NAN_MODULE_INIT\(([\w\d:]+?)\);/g, 'Napi::Object $1(Napi::Env env, Napi::Object exports);' ],
+ [ /NAN_MODULE_INIT\(([\w\d:]+?)\)/g, 'Napi::Object $1(Napi::Env env, Napi::Object exports)' ],
+
+
+ [ /::(Init(?:ialize)?)\(target\)/g, '::$1(env, target, module)' ],
+ [ /constructor_template/g, 'constructor' ],
+
+ [ /Nan::FunctionCallbackInfo<(v8::)?Value>[ ]*& [ ]*info\)[ ]*{\n*([ ]*)/gm, 'Napi::CallbackInfo& info) {\n$2Napi::Env env = info.Env();\n$2' ],
+ [ /Nan::FunctionCallbackInfo<(v8::)*Value>\s*&\s*info\);/g, 'Napi::CallbackInfo& info);' ],
+ [ /Nan::FunctionCallbackInfo<(v8::)*Value>\s*&/g, 'Napi::CallbackInfo&' ],
+
+ [ /Buffer::HasInstance\(([^)]+)\)/g, '$1.IsBuffer()' ],
+
+ [ /info\[(\d+)\]->/g, 'info[$1].' ],
+ [ /info\[([\w\d]+)\]->/g, 'info[$1].' ],
+ [ /info\.This\(\)->/g, 'info.This().' ],
+ [ /->Is(Object|String|Int32|Number)\(\)/g, '.Is$1()' ],
+ [ /info.GetReturnValue\(\).SetUndefined\(\)/g, 'return env.Undefined()' ],
+ [ /info\.GetReturnValue\(\)\.Set\(((\n|.)+?)\);/g, 'return $1;' ],
+
+
+ // ex. Local<Value> to Napi::Value
+ [ /v8::Local<v8::(Value|Boolean|String|Number|Object|Array|Symbol|External|Function)>/g, 'Napi::$1' ],
+ [ /Local<(Value|Boolean|String|Number|Object|Array|Symbol|External|Function)>/g, 'Napi::$1' ],
+
+ // Declare an env in helper functions that take a Napi::Value
+ [ /(\w+)\(Napi::Value (\w+)(,\s*[^\()]+)?\)\s*{\n*([ ]*)/gm, '$1(Napi::Value $2$3) {\n$4Napi::Env env = $2.Env();\n$4' ],
+
+ // delete #include <node.h> and/or <v8.h>
+ [ /#include +(<|")(?:node|nan).h("|>)/g, "#include $1napi.h$2\n#include $1uv.h$2" ],
+ // NODE_MODULE to NODE_API_MODULE
+ [ /NODE_MODULE/g, 'NODE_API_MODULE' ],
+ [ /Nan::/g, 'Napi::' ],
+ [ /nan.h/g, 'napi.h' ],
+
+ // delete .FromJust()
+ [ /\.FromJust\(\)/g, '' ],
+ // delete .ToLocalCheck()
+ [ /\.ToLocalChecked\(\)/g, '' ],
+ [ /^.*->SetInternalFieldCount\(.*$/gm, '' ],
+
+ // replace using node; and/or using v8; to using Napi;
+ [ /using (node|v8);/g, 'using Napi;' ],
+ [ /using namespace (node|Nan|v8);/g, 'using namespace Napi;' ],
+ // delete using v8::Local;
+ [ /using v8::Local;\n/g, '' ],
+ // replace using v8::XXX; with using Napi::XXX
+ [ /using v8::([A-Za-z]+);/g, 'using Napi::$1;' ],
+
+];
+
+var paths = listFiles(dir);
+paths.forEach(function(dirEntry) {
+ var filename = dirEntry.split('\\').pop().split('/').pop();
+
+ // Check whether the file is a source file or a config file
+ // then execute function accordingly
+ var sourcePattern = /.+\.h|.+\.cc|.+\.cpp/;
+ if (sourcePattern.test(filename)) {
+ convertFile(dirEntry, SourceFileOperations);
+ } else if (ConfigFileOperations[filename] != null) {
+ convertFile(dirEntry, ConfigFileOperations[filename]);
+ }
+});
+
+function listFiles(dir, filelist) {
+ var files = fs.readdirSync(dir);
+ filelist = filelist || [];
+ files.forEach(function(file) {
+ if (file === 'node_modules') {
+ return
+ }
+
+ if (fs.statSync(path.join(dir, file)).isDirectory()) {
+ filelist = listFiles(path.join(dir, file), filelist);
+ } else {
+ filelist.push(path.join(dir, file));
+ }
+ });
+ return filelist;
+}
+
+function convert(content, operations) {
+ for (let i = 0; i < operations.length; i ++) {
+ let operation = operations[i];
+ content = content.replace(operation[0], operation[1]);
+ }
+ return content;
+}
+
+function convertFile(fileName, operations) {
+ fs.readFile(fileName, "utf-8", function (err, file) {
+ if (err) throw err;
+
+ file = convert(file, operations);
+
+ fs.writeFile(fileName, file, function(err){
+ if (err) throw err;
+ });
+ });
+}
diff --git a/backend/node_modules/node-fetch/LICENSE.md b/backend/node_modules/node-fetch/LICENSE.md
new file mode 100644
index 0000000..660ffec
--- /dev/null
+++ b/backend/node_modules/node-fetch/LICENSE.md
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 David Frank
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
diff --git a/backend/node_modules/node-fetch/README.md b/backend/node_modules/node-fetch/README.md
new file mode 100644
index 0000000..2dde742
--- /dev/null
+++ b/backend/node_modules/node-fetch/README.md
@@ -0,0 +1,590 @@
+node-fetch
+==========
+
+[![npm version][npm-image]][npm-url]
+[![build status][travis-image]][travis-url]
+[![coverage status][codecov-image]][codecov-url]
+[![install size][install-size-image]][install-size-url]
+[![Discord][discord-image]][discord-url]
+
+A light-weight module that brings `window.fetch` to Node.js
+
+(We are looking for [v2 maintainers and collaborators](https://github.com/bitinn/node-fetch/issues/567))
+
+[![Backers][opencollective-image]][opencollective-url]
+
+<!-- TOC -->
+
+- [Motivation](#motivation)
+- [Features](#features)
+- [Difference from client-side fetch](#difference-from-client-side-fetch)
+- [Installation](#installation)
+- [Loading and configuring the module](#loading-and-configuring-the-module)
+- [Common Usage](#common-usage)
+ - [Plain text or HTML](#plain-text-or-html)
+ - [JSON](#json)
+ - [Simple Post](#simple-post)
+ - [Post with JSON](#post-with-json)
+ - [Post with form parameters](#post-with-form-parameters)
+ - [Handling exceptions](#handling-exceptions)
+ - [Handling client and server errors](#handling-client-and-server-errors)
+- [Advanced Usage](#advanced-usage)
+ - [Streams](#streams)
+ - [Buffer](#buffer)
+ - [Accessing Headers and other Meta data](#accessing-headers-and-other-meta-data)
+ - [Extract Set-Cookie Header](#extract-set-cookie-header)
+ - [Post data using a file stream](#post-data-using-a-file-stream)
+ - [Post with form-data (detect multipart)](#post-with-form-data-detect-multipart)
+ - [Request cancellation with AbortSignal](#request-cancellation-with-abortsignal)
+- [API](#api)
+ - [fetch(url[, options])](#fetchurl-options)
+ - [Options](#options)
+ - [Class: Request](#class-request)
+ - [Class: Response](#class-response)
+ - [Class: Headers](#class-headers)
+ - [Interface: Body](#interface-body)
+ - [Class: FetchError](#class-fetcherror)
+- [License](#license)
+- [Acknowledgement](#acknowledgement)
+
+<!-- /TOC -->
+
+## Motivation
+
+Instead of implementing `XMLHttpRequest` in Node.js to run browser-specific [Fetch polyfill](https://github.com/github/fetch), why not go from native `http` to `fetch` API directly? Hence, `node-fetch`, minimal code for a `window.fetch` compatible API on Node.js runtime.
+
+See Matt Andrews' [isomorphic-fetch](https://github.com/matthew-andrews/isomorphic-fetch) or Leonardo Quixada's [cross-fetch](https://github.com/lquixada/cross-fetch) for isomorphic usage (exports `node-fetch` for server-side, `whatwg-fetch` for client-side).
+
+## Features
+
+- Stay consistent with `window.fetch` API.
+- Make conscious trade-off when following [WHATWG fetch spec][whatwg-fetch] and [stream spec](https://streams.spec.whatwg.org/) implementation details, document known differences.
+- Use native promise but allow substituting it with [insert your favorite promise library].
+- Use native Node streams for body on both request and response.
+- Decode content encoding (gzip/deflate) properly and convert string output (such as `res.text()` and `res.json()`) to UTF-8 automatically.
+- Useful extensions such as timeout, redirect limit, response size limit, [explicit errors](ERROR-HANDLING.md) for troubleshooting.
+
+## Difference from client-side fetch
+
+- See [Known Differences](LIMITS.md) for details.
+- If you happen to use a missing feature that `window.fetch` offers, feel free to open an issue.
+- Pull requests are welcomed too!
+
+## Installation
+
+Current stable release (`2.x`)
+
+```sh
+$ npm install node-fetch
+```
+
+## Loading and configuring the module
+We suggest you load the module via `require` until the stabilization of ES modules in node:
+```js
+const fetch = require('node-fetch');
+```
+
+If you are using a Promise library other than native, set it through `fetch.Promise`:
+```js
+const Bluebird = require('bluebird');
+
+fetch.Promise = Bluebird;
+```
+
+## Common Usage
+
+NOTE: The documentation below is up-to-date with `2.x` releases; see the [`1.x` readme](https://github.com/bitinn/node-fetch/blob/1.x/README.md), [changelog](https://github.com/bitinn/node-fetch/blob/1.x/CHANGELOG.md) and [2.x upgrade guide](UPGRADE-GUIDE.md) for the differences.
+
+#### Plain text or HTML
+```js
+fetch('https://github.com/')
+ .then(res => res.text())
+ .then(body => console.log(body));
+```
+
+#### JSON
+
+```js
+
+fetch('https://api.github.com/users/github')
+ .then(res => res.json())
+ .then(json => console.log(json));
+```
+
+#### Simple Post
+```js
+fetch('https://httpbin.org/post', { method: 'POST', body: 'a=1' })
+ .then(res => res.json()) // expecting a json response
+ .then(json => console.log(json));
+```
+
+#### Post with JSON
+
+```js
+const body = { a: 1 };
+
+fetch('https://httpbin.org/post', {
+ method: 'post',
+ body: JSON.stringify(body),
+ headers: { 'Content-Type': 'application/json' },
+ })
+ .then(res => res.json())
+ .then(json => console.log(json));
+```
+
+#### Post with form parameters
+`URLSearchParams` is available in Node.js as of v7.5.0. See [official documentation](https://nodejs.org/api/url.html#url_class_urlsearchparams) for more usage methods.
+
+NOTE: The `Content-Type` header is only set automatically to `x-www-form-urlencoded` when an instance of `URLSearchParams` is given as such:
+
+```js
+const { URLSearchParams } = require('url');
+
+const params = new URLSearchParams();
+params.append('a', 1);
+
+fetch('https://httpbin.org/post', { method: 'POST', body: params })
+ .then(res => res.json())
+ .then(json => console.log(json));
+```
+
+#### Handling exceptions
+NOTE: 3xx-5xx responses are *NOT* exceptions and should be handled in `then()`; see the next section for more information.
+
+Adding a catch to the fetch promise chain will catch *all* exceptions, such as errors originating from node core libraries, network errors and operational errors, which are instances of FetchError. See the [error handling document](ERROR-HANDLING.md) for more details.
+
+```js
+fetch('https://domain.invalid/')
+ .catch(err => console.error(err));
+```
+
+#### Handling client and server errors
+It is common to create a helper function to check that the response contains no client (4xx) or server (5xx) error responses:
+
+```js
+function checkStatus(res) {
+ if (res.ok) { // res.status >= 200 && res.status < 300
+ return res;
+ } else {
+ throw MyCustomError(res.statusText);
+ }
+}
+
+fetch('https://httpbin.org/status/400')
+ .then(checkStatus)
+ .then(res => console.log('will not get here...'))
+```
+
+## Advanced Usage
+
+#### Streams
+The "Node.js way" is to use streams when possible:
+
+```js
+fetch('https://assets-cdn.github.com/images/modules/logos_page/Octocat.png')
+ .then(res => {
+ const dest = fs.createWriteStream('./octocat.png');
+ res.body.pipe(dest);
+ });
+```
+
+#### Buffer
+If you prefer to cache binary data in full, use buffer(). (NOTE: `buffer()` is a `node-fetch`-only API)
+
+```js
+const fileType = require('file-type');
+
+fetch('https://assets-cdn.github.com/images/modules/logos_page/Octocat.png')
+ .then(res => res.buffer())
+ .then(buffer => fileType(buffer))
+ .then(type => { /* ... */ });
+```
+
+#### Accessing Headers and other Meta data
+```js
+fetch('https://github.com/')
+ .then(res => {
+ console.log(res.ok);
+ console.log(res.status);
+ console.log(res.statusText);
+ console.log(res.headers.raw());
+ console.log(res.headers.get('content-type'));
+ });
+```
+
+#### Extract Set-Cookie Header
+
+Unlike browsers, you can access raw `Set-Cookie` headers manually using `Headers.raw()`. This is a `node-fetch` only API.
+
+```js
+fetch(url).then(res => {
+ // returns an array of values, instead of a string of comma-separated values
+ console.log(res.headers.raw()['set-cookie']);
+});
+```
+
+#### Post data using a file stream
+
+```js
+const { createReadStream } = require('fs');
+
+const stream = createReadStream('input.txt');
+
+fetch('https://httpbin.org/post', { method: 'POST', body: stream })
+ .then(res => res.json())
+ .then(json => console.log(json));
+```
+
+#### Post with form-data (detect multipart)
+
+```js
+const FormData = require('form-data');
+
+const form = new FormData();
+form.append('a', 1);
+
+fetch('https://httpbin.org/post', { method: 'POST', body: form })
+ .then(res => res.json())
+ .then(json => console.log(json));
+
+// OR, using custom headers
+// NOTE: getHeaders() is non-standard API
+
+const form = new FormData();
+form.append('a', 1);
+
+const options = {
+ method: 'POST',
+ body: form,
+ headers: form.getHeaders()
+}
+
+fetch('https://httpbin.org/post', options)
+ .then(res => res.json())
+ .then(json => console.log(json));
+```
+
+#### Request cancellation with AbortSignal
+
+> NOTE: You may cancel streamed requests only on Node >= v8.0.0
+
+You may cancel requests with `AbortController`. A suggested implementation is [`abort-controller`](https://www.npmjs.com/package/abort-controller).
+
+An example of timing out a request after 150ms could be achieved as the following:
+
+```js
+import AbortController from 'abort-controller';
+
+const controller = new AbortController();
+const timeout = setTimeout(
+ () => { controller.abort(); },
+ 150,
+);
+
+fetch(url, { signal: controller.signal })
+ .then(res => res.json())
+ .then(
+ data => {
+ useData(data)
+ },
+ err => {
+ if (err.name === 'AbortError') {
+ // request was aborted
+ }
+ },
+ )
+ .finally(() => {
+ clearTimeout(timeout);
+ });
+```
+
+See [test cases](https://github.com/bitinn/node-fetch/blob/master/test/test.js) for more examples.
+
+
+## API
+
+### fetch(url[, options])
+
+- `url` A string representing the URL for fetching
+- `options` [Options](#fetch-options) for the HTTP(S) request
+- Returns: <code>Promise<[Response](#class-response)></code>
+
+Perform an HTTP(S) fetch.
+
+`url` should be an absolute url, such as `https://example.com/`. A path-relative URL (`/file/under/root`) or protocol-relative URL (`//can-be-http-or-https.com/`) will result in a rejected `Promise`.
+
+<a id="fetch-options"></a>
+### Options
+
+The default values are shown after each option key.
+
+```js
+{
+ // These properties are part of the Fetch Standard
+ method: 'GET',
+ headers: {}, // request headers. format is the identical to that accepted by the Headers constructor (see below)
+ body: null, // request body. can be null, a string, a Buffer, a Blob, or a Node.js Readable stream
+ redirect: 'follow', // set to `manual` to extract redirect headers, `error` to reject redirect
+ signal: null, // pass an instance of AbortSignal to optionally abort requests
+
+ // The following properties are node-fetch extensions
+ follow: 20, // maximum redirect count. 0 to not follow redirect
+ timeout: 0, // req/res timeout in ms, it resets on redirect. 0 to disable (OS limit applies). Signal is recommended instead.
+ compress: true, // support gzip/deflate content encoding. false to disable
+ size: 0, // maximum response body size in bytes. 0 to disable
+ agent: null // http(s).Agent instance or function that returns an instance (see below)
+}
+```
+
+##### Default Headers
+
+If no values are set, the following request headers will be sent automatically:
+
+Header | Value
+------------------- | --------------------------------------------------------
+`Accept-Encoding` | `gzip,deflate` _(when `options.compress === true`)_
+`Accept` | `*/*`
+`Connection` | `close` _(when no `options.agent` is present)_
+`Content-Length` | _(automatically calculated, if possible)_
+`Transfer-Encoding` | `chunked` _(when `req.body` is a stream)_
+`User-Agent` | `node-fetch/1.0 (+https://github.com/bitinn/node-fetch)`
+
+Note: when `body` is a `Stream`, `Content-Length` is not set automatically.
+
+##### Custom Agent
+
+The `agent` option allows you to specify networking related options which are out of the scope of Fetch, including and not limited to the following:
+
+- Support self-signed certificate
+- Use only IPv4 or IPv6
+- Custom DNS Lookup
+
+See [`http.Agent`](https://nodejs.org/api/http.html#http_new_agent_options) for more information.
+
+In addition, the `agent` option accepts a function that returns `http`(s)`.Agent` instance given current [URL](https://nodejs.org/api/url.html), this is useful during a redirection chain across HTTP and HTTPS protocol.
+
+```js
+const httpAgent = new http.Agent({
+ keepAlive: true
+});
+const httpsAgent = new https.Agent({
+ keepAlive: true
+});
+
+const options = {
+ agent: function (_parsedURL) {
+ if (_parsedURL.protocol == 'http:') {
+ return httpAgent;
+ } else {
+ return httpsAgent;
+ }
+ }
+}
+```
+
+<a id="class-request"></a>
+### Class: Request
+
+An HTTP(S) request containing information about URL, method, headers, and the body. This class implements the [Body](#iface-body) interface.
+
+Due to the nature of Node.js, the following properties are not implemented at this moment:
+
+- `type`
+- `destination`
+- `referrer`
+- `referrerPolicy`
+- `mode`
+- `credentials`
+- `cache`
+- `integrity`
+- `keepalive`
+
+The following node-fetch extension properties are provided:
+
+- `follow`
+- `compress`
+- `counter`
+- `agent`
+
+See [options](#fetch-options) for exact meaning of these extensions.
+
+#### new Request(input[, options])
+
+<small>*(spec-compliant)*</small>
+
+- `input` A string representing a URL, or another `Request` (which will be cloned)
+- `options` [Options][#fetch-options] for the HTTP(S) request
+
+Constructs a new `Request` object. The constructor is identical to that in the [browser](https://developer.mozilla.org/en-US/docs/Web/API/Request/Request).
+
+In most cases, directly `fetch(url, options)` is simpler than creating a `Request` object.
+
+<a id="class-response"></a>
+### Class: Response
+
+An HTTP(S) response. This class implements the [Body](#iface-body) interface.
+
+The following properties are not implemented in node-fetch at this moment:
+
+- `Response.error()`
+- `Response.redirect()`
+- `type`
+- `trailer`
+
+#### new Response([body[, options]])
+
+<small>*(spec-compliant)*</small>
+
+- `body` A `String` or [`Readable` stream][node-readable]
+- `options` A [`ResponseInit`][response-init] options dictionary
+
+Constructs a new `Response` object. The constructor is identical to that in the [browser](https://developer.mozilla.org/en-US/docs/Web/API/Response/Response).
+
+Because Node.js does not implement service workers (for which this class was designed), one rarely has to construct a `Response` directly.
+
+#### response.ok
+
+<small>*(spec-compliant)*</small>
+
+Convenience property representing if the request ended normally. Will evaluate to true if the response status was greater than or equal to 200 but smaller than 300.
+
+#### response.redirected
+
+<small>*(spec-compliant)*</small>
+
+Convenience property representing if the request has been redirected at least once. Will evaluate to true if the internal redirect counter is greater than 0.
+
+<a id="class-headers"></a>
+### Class: Headers
+
+This class allows manipulating and iterating over a set of HTTP headers. All methods specified in the [Fetch Standard][whatwg-fetch] are implemented.
+
+#### new Headers([init])
+
+<small>*(spec-compliant)*</small>
+
+- `init` Optional argument to pre-fill the `Headers` object
+
+Construct a new `Headers` object. `init` can be either `null`, a `Headers` object, an key-value map object or any iterable object.
+
+```js
+// Example adapted from https://fetch.spec.whatwg.org/#example-headers-class
+
+const meta = {
+ 'Content-Type': 'text/xml',
+ 'Breaking-Bad': '<3'
+};
+const headers = new Headers(meta);
+
+// The above is equivalent to
+const meta = [
+ [ 'Content-Type', 'text/xml' ],
+ [ 'Breaking-Bad', '<3' ]
+];
+const headers = new Headers(meta);
+
+// You can in fact use any iterable objects, like a Map or even another Headers
+const meta = new Map();
+meta.set('Content-Type', 'text/xml');
+meta.set('Breaking-Bad', '<3');
+const headers = new Headers(meta);
+const copyOfHeaders = new Headers(headers);
+```
+
+<a id="iface-body"></a>
+### Interface: Body
+
+`Body` is an abstract interface with methods that are applicable to both `Request` and `Response` classes.
+
+The following methods are not yet implemented in node-fetch at this moment:
+
+- `formData()`
+
+#### body.body
+
+<small>*(deviation from spec)*</small>
+
+* Node.js [`Readable` stream][node-readable]
+
+Data are encapsulated in the `Body` object. Note that while the [Fetch Standard][whatwg-fetch] requires the property to always be a WHATWG `ReadableStream`, in node-fetch it is a Node.js [`Readable` stream][node-readable].
+
+#### body.bodyUsed
+
+<small>*(spec-compliant)*</small>
+
+* `Boolean`
+
+A boolean property for if this body has been consumed. Per the specs, a consumed body cannot be used again.
+
+#### body.arrayBuffer()
+#### body.blob()
+#### body.json()
+#### body.text()
+
+<small>*(spec-compliant)*</small>
+
+* Returns: <code>Promise</code>
+
+Consume the body and return a promise that will resolve to one of these formats.
+
+#### body.buffer()
+
+<small>*(node-fetch extension)*</small>
+
+* Returns: <code>Promise<Buffer></code>
+
+Consume the body and return a promise that will resolve to a Buffer.
+
+#### body.textConverted()
+
+<small>*(node-fetch extension)*</small>
+
+* Returns: <code>Promise<String></code>
+
+Identical to `body.text()`, except instead of always converting to UTF-8, encoding sniffing will be performed and text converted to UTF-8 if possible.
+
+(This API requires an optional dependency of the npm package [encoding](https://www.npmjs.com/package/encoding), which you need to install manually. `webpack` users may see [a warning message](https://github.com/bitinn/node-fetch/issues/412#issuecomment-379007792) due to this optional dependency.)
+
+<a id="class-fetcherror"></a>
+### Class: FetchError
+
+<small>*(node-fetch extension)*</small>
+
+An operational error in the fetching process. See [ERROR-HANDLING.md][] for more info.
+
+<a id="class-aborterror"></a>
+### Class: AbortError
+
+<small>*(node-fetch extension)*</small>
+
+An Error thrown when the request is aborted in response to an `AbortSignal`'s `abort` event. It has a `name` property of `AbortError`. See [ERROR-HANDLING.MD][] for more info.
+
+## Acknowledgement
+
+Thanks to [github/fetch](https://github.com/github/fetch) for providing a solid implementation reference.
+
+`node-fetch` v1 was maintained by [@bitinn](https://github.com/bitinn); v2 was maintained by [@TimothyGu](https://github.com/timothygu), [@bitinn](https://github.com/bitinn) and [@jimmywarting](https://github.com/jimmywarting); v2 readme is written by [@jkantr](https://github.com/jkantr).
+
+## License
+
+MIT
+
+[npm-image]: https://flat.badgen.net/npm/v/node-fetch
+[npm-url]: https://www.npmjs.com/package/node-fetch
+[travis-image]: https://flat.badgen.net/travis/bitinn/node-fetch
+[travis-url]: https://travis-ci.org/bitinn/node-fetch
+[codecov-image]: https://flat.badgen.net/codecov/c/github/bitinn/node-fetch/master
+[codecov-url]: https://codecov.io/gh/bitinn/node-fetch
+[install-size-image]: https://flat.badgen.net/packagephobia/install/node-fetch
+[install-size-url]: https://packagephobia.now.sh/result?p=node-fetch
+[discord-image]: https://img.shields.io/discord/619915844268326952?color=%237289DA&label=Discord&style=flat-square
+[discord-url]: https://discord.gg/Zxbndcm
+[opencollective-image]: https://opencollective.com/node-fetch/backers.svg
+[opencollective-url]: https://opencollective.com/node-fetch
+[whatwg-fetch]: https://fetch.spec.whatwg.org/
+[response-init]: https://fetch.spec.whatwg.org/#responseinit
+[node-readable]: https://nodejs.org/api/stream.html#stream_readable_streams
+[mdn-headers]: https://developer.mozilla.org/en-US/docs/Web/API/Headers
+[LIMITS.md]: https://github.com/bitinn/node-fetch/blob/master/LIMITS.md
+[ERROR-HANDLING.md]: https://github.com/bitinn/node-fetch/blob/master/ERROR-HANDLING.md
+[UPGRADE-GUIDE.md]: https://github.com/bitinn/node-fetch/blob/master/UPGRADE-GUIDE.md
diff --git a/backend/node_modules/node-fetch/browser.js b/backend/node_modules/node-fetch/browser.js
new file mode 100644
index 0000000..83c54c5
--- /dev/null
+++ b/backend/node_modules/node-fetch/browser.js
@@ -0,0 +1,25 @@
+"use strict";
+
+// ref: https://github.com/tc39/proposal-global
+var getGlobal = function () {
+ // the only reliable means to get the global object is
+ // `Function('return this')()`
+ // However, this causes CSP violations in Chrome apps.
+ if (typeof self !== 'undefined') { return self; }
+ if (typeof window !== 'undefined') { return window; }
+ if (typeof global !== 'undefined') { return global; }
+ throw new Error('unable to locate global object');
+}
+
+var global = getGlobal();
+
+module.exports = exports = global.fetch;
+
+// Needed for TypeScript and Webpack.
+if (global.fetch) {
+ exports.default = global.fetch.bind(global);
+}
+
+exports.Headers = global.Headers;
+exports.Request = global.Request;
+exports.Response = global.Response;
\ No newline at end of file
diff --git a/backend/node_modules/node-fetch/lib/index.es.js b/backend/node_modules/node-fetch/lib/index.es.js
new file mode 100644
index 0000000..79f70d3
--- /dev/null
+++ b/backend/node_modules/node-fetch/lib/index.es.js
@@ -0,0 +1,1662 @@
+process.emitWarning("The .es.js file is deprecated. Use .mjs instead.");
+
+import Stream from 'stream';
+import http from 'http';
+import Url from 'url';
+import whatwgUrl from 'whatwg-url';
+import https from 'https';
+import zlib from 'zlib';
+
+// Based on https://github.com/tmpvar/jsdom/blob/aa85b2abf07766ff7bf5c1f6daafb3726f2f2db5/lib/jsdom/living/blob.js
+
+// fix for "Readable" isn't a named export issue
+const Readable = Stream.Readable;
+
+const BUFFER = Symbol('buffer');
+const TYPE = Symbol('type');
+
+class Blob {
+ constructor() {
+ this[TYPE] = '';
+
+ const blobParts = arguments[0];
+ const options = arguments[1];
+
+ const buffers = [];
+ let size = 0;
+
+ if (blobParts) {
+ const a = blobParts;
+ const length = Number(a.length);
+ for (let i = 0; i < length; i++) {
+ const element = a[i];
+ let buffer;
+ if (element instanceof Buffer) {
+ buffer = element;
+ } else if (ArrayBuffer.isView(element)) {
+ buffer = Buffer.from(element.buffer, element.byteOffset, element.byteLength);
+ } else if (element instanceof ArrayBuffer) {
+ buffer = Buffer.from(element);
+ } else if (element instanceof Blob) {
+ buffer = element[BUFFER];
+ } else {
+ buffer = Buffer.from(typeof element === 'string' ? element : String(element));
+ }
+ size += buffer.length;
+ buffers.push(buffer);
+ }
+ }
+
+ this[BUFFER] = Buffer.concat(buffers);
+
+ let type = options && options.type !== undefined && String(options.type).toLowerCase();
+ if (type && !/[^\u0020-\u007E]/.test(type)) {
+ this[TYPE] = type;
+ }
+ }
+ get size() {
+ return this[BUFFER].length;
+ }
+ get type() {
+ return this[TYPE];
+ }
+ text() {
+ return Promise.resolve(this[BUFFER].toString());
+ }
+ arrayBuffer() {
+ const buf = this[BUFFER];
+ const ab = buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+ return Promise.resolve(ab);
+ }
+ stream() {
+ const readable = new Readable();
+ readable._read = function () {};
+ readable.push(this[BUFFER]);
+ readable.push(null);
+ return readable;
+ }
+ toString() {
+ return '[object Blob]';
+ }
+ slice() {
+ const size = this.size;
+
+ const start = arguments[0];
+ const end = arguments[1];
+ let relativeStart, relativeEnd;
+ if (start === undefined) {
+ relativeStart = 0;
+ } else if (start < 0) {
+ relativeStart = Math.max(size + start, 0);
+ } else {
+ relativeStart = Math.min(start, size);
+ }
+ if (end === undefined) {
+ relativeEnd = size;
+ } else if (end < 0) {
+ relativeEnd = Math.max(size + end, 0);
+ } else {
+ relativeEnd = Math.min(end, size);
+ }
+ const span = Math.max(relativeEnd - relativeStart, 0);
+
+ const buffer = this[BUFFER];
+ const slicedBuffer = buffer.slice(relativeStart, relativeStart + span);
+ const blob = new Blob([], { type: arguments[2] });
+ blob[BUFFER] = slicedBuffer;
+ return blob;
+ }
+}
+
+Object.defineProperties(Blob.prototype, {
+ size: { enumerable: true },
+ type: { enumerable: true },
+ slice: { enumerable: true }
+});
+
+Object.defineProperty(Blob.prototype, Symbol.toStringTag, {
+ value: 'Blob',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+/**
+ * fetch-error.js
+ *
+ * FetchError interface for operational errors
+ */
+
+/**
+ * Create FetchError instance
+ *
+ * @param String message Error message for human
+ * @param String type Error type for machine
+ * @param String systemError For Node.js system error
+ * @return FetchError
+ */
+function FetchError(message, type, systemError) {
+ Error.call(this, message);
+
+ this.message = message;
+ this.type = type;
+
+ // when err.type is `system`, err.code contains system error code
+ if (systemError) {
+ this.code = this.errno = systemError.code;
+ }
+
+ // hide custom error implementation details from end-users
+ Error.captureStackTrace(this, this.constructor);
+}
+
+FetchError.prototype = Object.create(Error.prototype);
+FetchError.prototype.constructor = FetchError;
+FetchError.prototype.name = 'FetchError';
+
+let convert;
+try {
+ convert = require('encoding').convert;
+} catch (e) {}
+
+const INTERNALS = Symbol('Body internals');
+
+// fix an issue where "PassThrough" isn't a named export for node <10
+const PassThrough = Stream.PassThrough;
+
+/**
+ * Body mixin
+ *
+ * Ref: https://fetch.spec.whatwg.org/#body
+ *
+ * @param Stream body Readable stream
+ * @param Object opts Response options
+ * @return Void
+ */
+function Body(body) {
+ var _this = this;
+
+ var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+ _ref$size = _ref.size;
+
+ let size = _ref$size === undefined ? 0 : _ref$size;
+ var _ref$timeout = _ref.timeout;
+ let timeout = _ref$timeout === undefined ? 0 : _ref$timeout;
+
+ if (body == null) {
+ // body is undefined or null
+ body = null;
+ } else if (isURLSearchParams(body)) {
+ // body is a URLSearchParams
+ body = Buffer.from(body.toString());
+ } else if (isBlob(body)) ; else if (Buffer.isBuffer(body)) ; else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+ // body is ArrayBuffer
+ body = Buffer.from(body);
+ } else if (ArrayBuffer.isView(body)) {
+ // body is ArrayBufferView
+ body = Buffer.from(body.buffer, body.byteOffset, body.byteLength);
+ } else if (body instanceof Stream) ; else {
+ // none of the above
+ // coerce to string then buffer
+ body = Buffer.from(String(body));
+ }
+ this[INTERNALS] = {
+ body,
+ disturbed: false,
+ error: null
+ };
+ this.size = size;
+ this.timeout = timeout;
+
+ if (body instanceof Stream) {
+ body.on('error', function (err) {
+ const error = err.name === 'AbortError' ? err : new FetchError(`Invalid response body while trying to fetch ${_this.url}: ${err.message}`, 'system', err);
+ _this[INTERNALS].error = error;
+ });
+ }
+}
+
+Body.prototype = {
+ get body() {
+ return this[INTERNALS].body;
+ },
+
+ get bodyUsed() {
+ return this[INTERNALS].disturbed;
+ },
+
+ /**
+ * Decode response as ArrayBuffer
+ *
+ * @return Promise
+ */
+ arrayBuffer() {
+ return consumeBody.call(this).then(function (buf) {
+ return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+ });
+ },
+
+ /**
+ * Return raw response as Blob
+ *
+ * @return Promise
+ */
+ blob() {
+ let ct = this.headers && this.headers.get('content-type') || '';
+ return consumeBody.call(this).then(function (buf) {
+ return Object.assign(
+ // Prevent copying
+ new Blob([], {
+ type: ct.toLowerCase()
+ }), {
+ [BUFFER]: buf
+ });
+ });
+ },
+
+ /**
+ * Decode response as json
+ *
+ * @return Promise
+ */
+ json() {
+ var _this2 = this;
+
+ return consumeBody.call(this).then(function (buffer) {
+ try {
+ return JSON.parse(buffer.toString());
+ } catch (err) {
+ return Body.Promise.reject(new FetchError(`invalid json response body at ${_this2.url} reason: ${err.message}`, 'invalid-json'));
+ }
+ });
+ },
+
+ /**
+ * Decode response as text
+ *
+ * @return Promise
+ */
+ text() {
+ return consumeBody.call(this).then(function (buffer) {
+ return buffer.toString();
+ });
+ },
+
+ /**
+ * Decode response as buffer (non-spec api)
+ *
+ * @return Promise
+ */
+ buffer() {
+ return consumeBody.call(this);
+ },
+
+ /**
+ * Decode response as text, while automatically detecting the encoding and
+ * trying to decode to UTF-8 (non-spec api)
+ *
+ * @return Promise
+ */
+ textConverted() {
+ var _this3 = this;
+
+ return consumeBody.call(this).then(function (buffer) {
+ return convertBody(buffer, _this3.headers);
+ });
+ }
+};
+
+// In browsers, all properties are enumerable.
+Object.defineProperties(Body.prototype, {
+ body: { enumerable: true },
+ bodyUsed: { enumerable: true },
+ arrayBuffer: { enumerable: true },
+ blob: { enumerable: true },
+ json: { enumerable: true },
+ text: { enumerable: true }
+});
+
+Body.mixIn = function (proto) {
+ for (const name of Object.getOwnPropertyNames(Body.prototype)) {
+ // istanbul ignore else: future proof
+ if (!(name in proto)) {
+ const desc = Object.getOwnPropertyDescriptor(Body.prototype, name);
+ Object.defineProperty(proto, name, desc);
+ }
+ }
+};
+
+/**
+ * Consume and convert an entire Body to a Buffer.
+ *
+ * Ref: https://fetch.spec.whatwg.org/#concept-body-consume-body
+ *
+ * @return Promise
+ */
+function consumeBody() {
+ var _this4 = this;
+
+ if (this[INTERNALS].disturbed) {
+ return Body.Promise.reject(new TypeError(`body used already for: ${this.url}`));
+ }
+
+ this[INTERNALS].disturbed = true;
+
+ if (this[INTERNALS].error) {
+ return Body.Promise.reject(this[INTERNALS].error);
+ }
+
+ let body = this.body;
+
+ // body is null
+ if (body === null) {
+ return Body.Promise.resolve(Buffer.alloc(0));
+ }
+
+ // body is blob
+ if (isBlob(body)) {
+ body = body.stream();
+ }
+
+ // body is buffer
+ if (Buffer.isBuffer(body)) {
+ return Body.Promise.resolve(body);
+ }
+
+ // istanbul ignore if: should never happen
+ if (!(body instanceof Stream)) {
+ return Body.Promise.resolve(Buffer.alloc(0));
+ }
+
+ // body is stream
+ // get ready to actually consume the body
+ let accum = [];
+ let accumBytes = 0;
+ let abort = false;
+
+ return new Body.Promise(function (resolve, reject) {
+ let resTimeout;
+
+ // allow timeout on slow response body
+ if (_this4.timeout) {
+ resTimeout = setTimeout(function () {
+ abort = true;
+ reject(new FetchError(`Response timeout while trying to fetch ${_this4.url} (over ${_this4.timeout}ms)`, 'body-timeout'));
+ }, _this4.timeout);
+ }
+
+ // handle stream errors
+ body.on('error', function (err) {
+ if (err.name === 'AbortError') {
+ // if the request was aborted, reject with this Error
+ abort = true;
+ reject(err);
+ } else {
+ // other errors, such as incorrect content-encoding
+ reject(new FetchError(`Invalid response body while trying to fetch ${_this4.url}: ${err.message}`, 'system', err));
+ }
+ });
+
+ body.on('data', function (chunk) {
+ if (abort || chunk === null) {
+ return;
+ }
+
+ if (_this4.size && accumBytes + chunk.length > _this4.size) {
+ abort = true;
+ reject(new FetchError(`content size at ${_this4.url} over limit: ${_this4.size}`, 'max-size'));
+ return;
+ }
+
+ accumBytes += chunk.length;
+ accum.push(chunk);
+ });
+
+ body.on('end', function () {
+ if (abort) {
+ return;
+ }
+
+ clearTimeout(resTimeout);
+
+ try {
+ resolve(Buffer.concat(accum, accumBytes));
+ } catch (err) {
+ // handle streams that have accumulated too much data (issue #414)
+ reject(new FetchError(`Could not create Buffer from response body for ${_this4.url}: ${err.message}`, 'system', err));
+ }
+ });
+ });
+}
+
+/**
+ * Detect buffer encoding and convert to target encoding
+ * ref: http://www.w3.org/TR/2011/WD-html5-20110113/parsing.html#determining-the-character-encoding
+ *
+ * @param Buffer buffer Incoming buffer
+ * @param String encoding Target encoding
+ * @return String
+ */
+function convertBody(buffer, headers) {
+ if (typeof convert !== 'function') {
+ throw new Error('The package `encoding` must be installed to use the textConverted() function');
+ }
+
+ const ct = headers.get('content-type');
+ let charset = 'utf-8';
+ let res, str;
+
+ // header
+ if (ct) {
+ res = /charset=([^;]*)/i.exec(ct);
+ }
+
+ // no charset in content type, peek at response body for at most 1024 bytes
+ str = buffer.slice(0, 1024).toString();
+
+ // html5
+ if (!res && str) {
+ res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str);
+ }
+
+ // html4
+ if (!res && str) {
+ res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str);
+ if (!res) {
+ res = /<meta[\s]+?content=(['"])(.+?)\1[\s]+?http-equiv=(['"])content-type\3/i.exec(str);
+ if (res) {
+ res.pop(); // drop last quote
+ }
+ }
+
+ if (res) {
+ res = /charset=(.*)/i.exec(res.pop());
+ }
+ }
+
+ // xml
+ if (!res && str) {
+ res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str);
+ }
+
+ // found charset
+ if (res) {
+ charset = res.pop();
+
+ // prevent decode issues when sites use incorrect encoding
+ // ref: https://hsivonen.fi/encoding-menu/
+ if (charset === 'gb2312' || charset === 'gbk') {
+ charset = 'gb18030';
+ }
+ }
+
+ // turn raw buffers into a single utf-8 buffer
+ return convert(buffer, 'UTF-8', charset).toString();
+}
+
+/**
+ * Detect a URLSearchParams object
+ * ref: https://github.com/bitinn/node-fetch/issues/296#issuecomment-307598143
+ *
+ * @param Object obj Object to detect by type or brand
+ * @return String
+ */
+function isURLSearchParams(obj) {
+ // Duck-typing as a necessary condition.
+ if (typeof obj !== 'object' || typeof obj.append !== 'function' || typeof obj.delete !== 'function' || typeof obj.get !== 'function' || typeof obj.getAll !== 'function' || typeof obj.has !== 'function' || typeof obj.set !== 'function') {
+ return false;
+ }
+
+ // Brand-checking and more duck-typing as optional condition.
+ return obj.constructor.name === 'URLSearchParams' || Object.prototype.toString.call(obj) === '[object URLSearchParams]' || typeof obj.sort === 'function';
+}
+
+/**
+ * Check if `obj` is a W3C `Blob` object (which `File` inherits from)
+ * @param {*} obj
+ * @return {boolean}
+ */
+function isBlob(obj) {
+ return typeof obj === 'object' && typeof obj.arrayBuffer === 'function' && typeof obj.type === 'string' && typeof obj.stream === 'function' && typeof obj.constructor === 'function' && typeof obj.constructor.name === 'string' && /^(Blob|File)$/.test(obj.constructor.name) && /^(Blob|File)$/.test(obj[Symbol.toStringTag]);
+}
+
+/**
+ * Clone body given Res/Req instance
+ *
+ * @param Mixed instance Response or Request instance
+ * @return Mixed
+ */
+function clone(instance) {
+ let p1, p2;
+ let body = instance.body;
+
+ // don't allow cloning a used body
+ if (instance.bodyUsed) {
+ throw new Error('cannot clone body after it is used');
+ }
+
+ // check that body is a stream and not form-data object
+ // note: we can't clone the form-data object without having it as a dependency
+ if (body instanceof Stream && typeof body.getBoundary !== 'function') {
+ // tee instance body
+ p1 = new PassThrough();
+ p2 = new PassThrough();
+ body.pipe(p1);
+ body.pipe(p2);
+ // set instance body to teed body and return the other teed body
+ instance[INTERNALS].body = p1;
+ body = p2;
+ }
+
+ return body;
+}
+
+/**
+ * Performs the operation "extract a `Content-Type` value from |object|" as
+ * specified in the specification:
+ * https://fetch.spec.whatwg.org/#concept-bodyinit-extract
+ *
+ * This function assumes that instance.body is present.
+ *
+ * @param Mixed instance Any options.body input
+ */
+function extractContentType(body) {
+ if (body === null) {
+ // body is null
+ return null;
+ } else if (typeof body === 'string') {
+ // body is string
+ return 'text/plain;charset=UTF-8';
+ } else if (isURLSearchParams(body)) {
+ // body is a URLSearchParams
+ return 'application/x-www-form-urlencoded;charset=UTF-8';
+ } else if (isBlob(body)) {
+ // body is blob
+ return body.type || null;
+ } else if (Buffer.isBuffer(body)) {
+ // body is buffer
+ return null;
+ } else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+ // body is ArrayBuffer
+ return null;
+ } else if (ArrayBuffer.isView(body)) {
+ // body is ArrayBufferView
+ return null;
+ } else if (typeof body.getBoundary === 'function') {
+ // detect form data input from form-data module
+ return `multipart/form-data;boundary=${body.getBoundary()}`;
+ } else if (body instanceof Stream) {
+ // body is stream
+ // can't really do much about this
+ return null;
+ } else {
+ // Body constructor defaults other things to string
+ return 'text/plain;charset=UTF-8';
+ }
+}
+
+/**
+ * The Fetch Standard treats this as if "total bytes" is a property on the body.
+ * For us, we have to explicitly get it with a function.
+ *
+ * ref: https://fetch.spec.whatwg.org/#concept-body-total-bytes
+ *
+ * @param Body instance Instance of Body
+ * @return Number? Number of bytes, or null if not possible
+ */
+function getTotalBytes(instance) {
+ const body = instance.body;
+
+
+ if (body === null) {
+ // body is null
+ return 0;
+ } else if (isBlob(body)) {
+ return body.size;
+ } else if (Buffer.isBuffer(body)) {
+ // body is buffer
+ return body.length;
+ } else if (body && typeof body.getLengthSync === 'function') {
+ // detect form data input from form-data module
+ if (body._lengthRetrievers && body._lengthRetrievers.length == 0 || // 1.x
+ body.hasKnownLength && body.hasKnownLength()) {
+ // 2.x
+ return body.getLengthSync();
+ }
+ return null;
+ } else {
+ // body is stream
+ return null;
+ }
+}
+
+/**
+ * Write a Body to a Node.js WritableStream (e.g. http.Request) object.
+ *
+ * @param Body instance Instance of Body
+ * @return Void
+ */
+function writeToStream(dest, instance) {
+ const body = instance.body;
+
+
+ if (body === null) {
+ // body is null
+ dest.end();
+ } else if (isBlob(body)) {
+ body.stream().pipe(dest);
+ } else if (Buffer.isBuffer(body)) {
+ // body is buffer
+ dest.write(body);
+ dest.end();
+ } else {
+ // body is stream
+ body.pipe(dest);
+ }
+}
+
+// expose Promise
+Body.Promise = global.Promise;
+
+/**
+ * headers.js
+ *
+ * Headers class offers convenient helpers
+ */
+
+const invalidTokenRegex = /[^\^_`a-zA-Z\-0-9!#$%&'*+.|~]/;
+const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/;
+
+function validateName(name) {
+ name = `${name}`;
+ if (invalidTokenRegex.test(name) || name === '') {
+ throw new TypeError(`${name} is not a legal HTTP header name`);
+ }
+}
+
+function validateValue(value) {
+ value = `${value}`;
+ if (invalidHeaderCharRegex.test(value)) {
+ throw new TypeError(`${value} is not a legal HTTP header value`);
+ }
+}
+
+/**
+ * Find the key in the map object given a header name.
+ *
+ * Returns undefined if not found.
+ *
+ * @param String name Header name
+ * @return String|Undefined
+ */
+function find(map, name) {
+ name = name.toLowerCase();
+ for (const key in map) {
+ if (key.toLowerCase() === name) {
+ return key;
+ }
+ }
+ return undefined;
+}
+
+const MAP = Symbol('map');
+class Headers {
+ /**
+ * Headers class
+ *
+ * @param Object headers Response headers
+ * @return Void
+ */
+ constructor() {
+ let init = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined;
+
+ this[MAP] = Object.create(null);
+
+ if (init instanceof Headers) {
+ const rawHeaders = init.raw();
+ const headerNames = Object.keys(rawHeaders);
+
+ for (const headerName of headerNames) {
+ for (const value of rawHeaders[headerName]) {
+ this.append(headerName, value);
+ }
+ }
+
+ return;
+ }
+
+ // We don't worry about converting prop to ByteString here as append()
+ // will handle it.
+ if (init == null) ; else if (typeof init === 'object') {
+ const method = init[Symbol.iterator];
+ if (method != null) {
+ if (typeof method !== 'function') {
+ throw new TypeError('Header pairs must be iterable');
+ }
+
+ // sequence<sequence<ByteString>>
+ // Note: per spec we have to first exhaust the lists then process them
+ const pairs = [];
+ for (const pair of init) {
+ if (typeof pair !== 'object' || typeof pair[Symbol.iterator] !== 'function') {
+ throw new TypeError('Each header pair must be iterable');
+ }
+ pairs.push(Array.from(pair));
+ }
+
+ for (const pair of pairs) {
+ if (pair.length !== 2) {
+ throw new TypeError('Each header pair must be a name/value tuple');
+ }
+ this.append(pair[0], pair[1]);
+ }
+ } else {
+ // record<ByteString, ByteString>
+ for (const key of Object.keys(init)) {
+ const value = init[key];
+ this.append(key, value);
+ }
+ }
+ } else {
+ throw new TypeError('Provided initializer must be an object');
+ }
+ }
+
+ /**
+ * Return combined header value given name
+ *
+ * @param String name Header name
+ * @return Mixed
+ */
+ get(name) {
+ name = `${name}`;
+ validateName(name);
+ const key = find(this[MAP], name);
+ if (key === undefined) {
+ return null;
+ }
+
+ return this[MAP][key].join(', ');
+ }
+
+ /**
+ * Iterate over all headers
+ *
+ * @param Function callback Executed for each item with parameters (value, name, thisArg)
+ * @param Boolean thisArg `this` context for callback function
+ * @return Void
+ */
+ forEach(callback) {
+ let thisArg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined;
+
+ let pairs = getHeaders(this);
+ let i = 0;
+ while (i < pairs.length) {
+ var _pairs$i = pairs[i];
+ const name = _pairs$i[0],
+ value = _pairs$i[1];
+
+ callback.call(thisArg, value, name, this);
+ pairs = getHeaders(this);
+ i++;
+ }
+ }
+
+ /**
+ * Overwrite header values given name
+ *
+ * @param String name Header name
+ * @param String value Header value
+ * @return Void
+ */
+ set(name, value) {
+ name = `${name}`;
+ value = `${value}`;
+ validateName(name);
+ validateValue(value);
+ const key = find(this[MAP], name);
+ this[MAP][key !== undefined ? key : name] = [value];
+ }
+
+ /**
+ * Append a value onto existing header
+ *
+ * @param String name Header name
+ * @param String value Header value
+ * @return Void
+ */
+ append(name, value) {
+ name = `${name}`;
+ value = `${value}`;
+ validateName(name);
+ validateValue(value);
+ const key = find(this[MAP], name);
+ if (key !== undefined) {
+ this[MAP][key].push(value);
+ } else {
+ this[MAP][name] = [value];
+ }
+ }
+
+ /**
+ * Check for header name existence
+ *
+ * @param String name Header name
+ * @return Boolean
+ */
+ has(name) {
+ name = `${name}`;
+ validateName(name);
+ return find(this[MAP], name) !== undefined;
+ }
+
+ /**
+ * Delete all header values given name
+ *
+ * @param String name Header name
+ * @return Void
+ */
+ delete(name) {
+ name = `${name}`;
+ validateName(name);
+ const key = find(this[MAP], name);
+ if (key !== undefined) {
+ delete this[MAP][key];
+ }
+ }
+
+ /**
+ * Return raw headers (non-spec api)
+ *
+ * @return Object
+ */
+ raw() {
+ return this[MAP];
+ }
+
+ /**
+ * Get an iterator on keys.
+ *
+ * @return Iterator
+ */
+ keys() {
+ return createHeadersIterator(this, 'key');
+ }
+
+ /**
+ * Get an iterator on values.
+ *
+ * @return Iterator
+ */
+ values() {
+ return createHeadersIterator(this, 'value');
+ }
+
+ /**
+ * Get an iterator on entries.
+ *
+ * This is the default iterator of the Headers object.
+ *
+ * @return Iterator
+ */
+ [Symbol.iterator]() {
+ return createHeadersIterator(this, 'key+value');
+ }
+}
+Headers.prototype.entries = Headers.prototype[Symbol.iterator];
+
+Object.defineProperty(Headers.prototype, Symbol.toStringTag, {
+ value: 'Headers',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+Object.defineProperties(Headers.prototype, {
+ get: { enumerable: true },
+ forEach: { enumerable: true },
+ set: { enumerable: true },
+ append: { enumerable: true },
+ has: { enumerable: true },
+ delete: { enumerable: true },
+ keys: { enumerable: true },
+ values: { enumerable: true },
+ entries: { enumerable: true }
+});
+
+function getHeaders(headers) {
+ let kind = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'key+value';
+
+ const keys = Object.keys(headers[MAP]).sort();
+ return keys.map(kind === 'key' ? function (k) {
+ return k.toLowerCase();
+ } : kind === 'value' ? function (k) {
+ return headers[MAP][k].join(', ');
+ } : function (k) {
+ return [k.toLowerCase(), headers[MAP][k].join(', ')];
+ });
+}
+
+const INTERNAL = Symbol('internal');
+
+function createHeadersIterator(target, kind) {
+ const iterator = Object.create(HeadersIteratorPrototype);
+ iterator[INTERNAL] = {
+ target,
+ kind,
+ index: 0
+ };
+ return iterator;
+}
+
+const HeadersIteratorPrototype = Object.setPrototypeOf({
+ next() {
+ // istanbul ignore if
+ if (!this || Object.getPrototypeOf(this) !== HeadersIteratorPrototype) {
+ throw new TypeError('Value of `this` is not a HeadersIterator');
+ }
+
+ var _INTERNAL = this[INTERNAL];
+ const target = _INTERNAL.target,
+ kind = _INTERNAL.kind,
+ index = _INTERNAL.index;
+
+ const values = getHeaders(target, kind);
+ const len = values.length;
+ if (index >= len) {
+ return {
+ value: undefined,
+ done: true
+ };
+ }
+
+ this[INTERNAL].index = index + 1;
+
+ return {
+ value: values[index],
+ done: false
+ };
+ }
+}, Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())));
+
+Object.defineProperty(HeadersIteratorPrototype, Symbol.toStringTag, {
+ value: 'HeadersIterator',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+/**
+ * Export the Headers object in a form that Node.js can consume.
+ *
+ * @param Headers headers
+ * @return Object
+ */
+function exportNodeCompatibleHeaders(headers) {
+ const obj = Object.assign({ __proto__: null }, headers[MAP]);
+
+ // http.request() only supports string as Host header. This hack makes
+ // specifying custom Host header possible.
+ const hostHeaderKey = find(headers[MAP], 'Host');
+ if (hostHeaderKey !== undefined) {
+ obj[hostHeaderKey] = obj[hostHeaderKey][0];
+ }
+
+ return obj;
+}
+
+/**
+ * Create a Headers object from an object of headers, ignoring those that do
+ * not conform to HTTP grammar productions.
+ *
+ * @param Object obj Object of headers
+ * @return Headers
+ */
+function createHeadersLenient(obj) {
+ const headers = new Headers();
+ for (const name of Object.keys(obj)) {
+ if (invalidTokenRegex.test(name)) {
+ continue;
+ }
+ if (Array.isArray(obj[name])) {
+ for (const val of obj[name]) {
+ if (invalidHeaderCharRegex.test(val)) {
+ continue;
+ }
+ if (headers[MAP][name] === undefined) {
+ headers[MAP][name] = [val];
+ } else {
+ headers[MAP][name].push(val);
+ }
+ }
+ } else if (!invalidHeaderCharRegex.test(obj[name])) {
+ headers[MAP][name] = [obj[name]];
+ }
+ }
+ return headers;
+}
+
+const INTERNALS$1 = Symbol('Response internals');
+
+// fix an issue where "STATUS_CODES" aren't a named export for node <10
+const STATUS_CODES = http.STATUS_CODES;
+
+/**
+ * Response class
+ *
+ * @param Stream body Readable stream
+ * @param Object opts Response options
+ * @return Void
+ */
+class Response {
+ constructor() {
+ let body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+ let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ Body.call(this, body, opts);
+
+ const status = opts.status || 200;
+ const headers = new Headers(opts.headers);
+
+ if (body != null && !headers.has('Content-Type')) {
+ const contentType = extractContentType(body);
+ if (contentType) {
+ headers.append('Content-Type', contentType);
+ }
+ }
+
+ this[INTERNALS$1] = {
+ url: opts.url,
+ status,
+ statusText: opts.statusText || STATUS_CODES[status],
+ headers,
+ counter: opts.counter
+ };
+ }
+
+ get url() {
+ return this[INTERNALS$1].url || '';
+ }
+
+ get status() {
+ return this[INTERNALS$1].status;
+ }
+
+ /**
+ * Convenience property representing if the request ended normally
+ */
+ get ok() {
+ return this[INTERNALS$1].status >= 200 && this[INTERNALS$1].status < 300;
+ }
+
+ get redirected() {
+ return this[INTERNALS$1].counter > 0;
+ }
+
+ get statusText() {
+ return this[INTERNALS$1].statusText;
+ }
+
+ get headers() {
+ return this[INTERNALS$1].headers;
+ }
+
+ /**
+ * Clone this response
+ *
+ * @return Response
+ */
+ clone() {
+ return new Response(clone(this), {
+ url: this.url,
+ status: this.status,
+ statusText: this.statusText,
+ headers: this.headers,
+ ok: this.ok,
+ redirected: this.redirected
+ });
+ }
+}
+
+Body.mixIn(Response.prototype);
+
+Object.defineProperties(Response.prototype, {
+ url: { enumerable: true },
+ status: { enumerable: true },
+ ok: { enumerable: true },
+ redirected: { enumerable: true },
+ statusText: { enumerable: true },
+ headers: { enumerable: true },
+ clone: { enumerable: true }
+});
+
+Object.defineProperty(Response.prototype, Symbol.toStringTag, {
+ value: 'Response',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+const INTERNALS$2 = Symbol('Request internals');
+const URL = Url.URL || whatwgUrl.URL;
+
+// fix an issue where "format", "parse" aren't a named export for node <10
+const parse_url = Url.parse;
+const format_url = Url.format;
+
+/**
+ * Wrapper around `new URL` to handle arbitrary URLs
+ *
+ * @param {string} urlStr
+ * @return {void}
+ */
+function parseURL(urlStr) {
+ /*
+ Check whether the URL is absolute or not
+ Scheme: https://tools.ietf.org/html/rfc3986#section-3.1
+ Absolute URL: https://tools.ietf.org/html/rfc3986#section-4.3
+ */
+ if (/^[a-zA-Z][a-zA-Z\d+\-.]*:/.exec(urlStr)) {
+ urlStr = new URL(urlStr).toString();
+ }
+
+ // Fallback to old implementation for arbitrary URLs
+ return parse_url(urlStr);
+}
+
+const streamDestructionSupported = 'destroy' in Stream.Readable.prototype;
+
+/**
+ * Check if a value is an instance of Request.
+ *
+ * @param Mixed input
+ * @return Boolean
+ */
+function isRequest(input) {
+ return typeof input === 'object' && typeof input[INTERNALS$2] === 'object';
+}
+
+function isAbortSignal(signal) {
+ const proto = signal && typeof signal === 'object' && Object.getPrototypeOf(signal);
+ return !!(proto && proto.constructor.name === 'AbortSignal');
+}
+
+/**
+ * Request class
+ *
+ * @param Mixed input Url or Request instance
+ * @param Object init Custom options
+ * @return Void
+ */
+class Request {
+ constructor(input) {
+ let init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ let parsedURL;
+
+ // normalize input
+ if (!isRequest(input)) {
+ if (input && input.href) {
+ // in order to support Node.js' Url objects; though WHATWG's URL objects
+ // will fall into this branch also (since their `toString()` will return
+ // `href` property anyway)
+ parsedURL = parseURL(input.href);
+ } else {
+ // coerce input to a string before attempting to parse
+ parsedURL = parseURL(`${input}`);
+ }
+ input = {};
+ } else {
+ parsedURL = parseURL(input.url);
+ }
+
+ let method = init.method || input.method || 'GET';
+ method = method.toUpperCase();
+
+ if ((init.body != null || isRequest(input) && input.body !== null) && (method === 'GET' || method === 'HEAD')) {
+ throw new TypeError('Request with GET/HEAD method cannot have body');
+ }
+
+ let inputBody = init.body != null ? init.body : isRequest(input) && input.body !== null ? clone(input) : null;
+
+ Body.call(this, inputBody, {
+ timeout: init.timeout || input.timeout || 0,
+ size: init.size || input.size || 0
+ });
+
+ const headers = new Headers(init.headers || input.headers || {});
+
+ if (inputBody != null && !headers.has('Content-Type')) {
+ const contentType = extractContentType(inputBody);
+ if (contentType) {
+ headers.append('Content-Type', contentType);
+ }
+ }
+
+ let signal = isRequest(input) ? input.signal : null;
+ if ('signal' in init) signal = init.signal;
+
+ if (signal != null && !isAbortSignal(signal)) {
+ throw new TypeError('Expected signal to be an instanceof AbortSignal');
+ }
+
+ this[INTERNALS$2] = {
+ method,
+ redirect: init.redirect || input.redirect || 'follow',
+ headers,
+ parsedURL,
+ signal
+ };
+
+ // node-fetch-only options
+ this.follow = init.follow !== undefined ? init.follow : input.follow !== undefined ? input.follow : 20;
+ this.compress = init.compress !== undefined ? init.compress : input.compress !== undefined ? input.compress : true;
+ this.counter = init.counter || input.counter || 0;
+ this.agent = init.agent || input.agent;
+ }
+
+ get method() {
+ return this[INTERNALS$2].method;
+ }
+
+ get url() {
+ return format_url(this[INTERNALS$2].parsedURL);
+ }
+
+ get headers() {
+ return this[INTERNALS$2].headers;
+ }
+
+ get redirect() {
+ return this[INTERNALS$2].redirect;
+ }
+
+ get signal() {
+ return this[INTERNALS$2].signal;
+ }
+
+ /**
+ * Clone this request
+ *
+ * @return Request
+ */
+ clone() {
+ return new Request(this);
+ }
+}
+
+Body.mixIn(Request.prototype);
+
+Object.defineProperty(Request.prototype, Symbol.toStringTag, {
+ value: 'Request',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+Object.defineProperties(Request.prototype, {
+ method: { enumerable: true },
+ url: { enumerable: true },
+ headers: { enumerable: true },
+ redirect: { enumerable: true },
+ clone: { enumerable: true },
+ signal: { enumerable: true }
+});
+
+/**
+ * Convert a Request to Node.js http request options.
+ *
+ * @param Request A Request instance
+ * @return Object The options object to be passed to http.request
+ */
+function getNodeRequestOptions(request) {
+ const parsedURL = request[INTERNALS$2].parsedURL;
+ const headers = new Headers(request[INTERNALS$2].headers);
+
+ // fetch step 1.3
+ if (!headers.has('Accept')) {
+ headers.set('Accept', '*/*');
+ }
+
+ // Basic fetch
+ if (!parsedURL.protocol || !parsedURL.hostname) {
+ throw new TypeError('Only absolute URLs are supported');
+ }
+
+ if (!/^https?:$/.test(parsedURL.protocol)) {
+ throw new TypeError('Only HTTP(S) protocols are supported');
+ }
+
+ if (request.signal && request.body instanceof Stream.Readable && !streamDestructionSupported) {
+ throw new Error('Cancellation of streamed requests with AbortSignal is not supported in node < 8');
+ }
+
+ // HTTP-network-or-cache fetch steps 2.4-2.7
+ let contentLengthValue = null;
+ if (request.body == null && /^(POST|PUT)$/i.test(request.method)) {
+ contentLengthValue = '0';
+ }
+ if (request.body != null) {
+ const totalBytes = getTotalBytes(request);
+ if (typeof totalBytes === 'number') {
+ contentLengthValue = String(totalBytes);
+ }
+ }
+ if (contentLengthValue) {
+ headers.set('Content-Length', contentLengthValue);
+ }
+
+ // HTTP-network-or-cache fetch step 2.11
+ if (!headers.has('User-Agent')) {
+ headers.set('User-Agent', 'node-fetch/1.0 (+https://github.com/bitinn/node-fetch)');
+ }
+
+ // HTTP-network-or-cache fetch step 2.15
+ if (request.compress && !headers.has('Accept-Encoding')) {
+ headers.set('Accept-Encoding', 'gzip,deflate');
+ }
+
+ let agent = request.agent;
+ if (typeof agent === 'function') {
+ agent = agent(parsedURL);
+ }
+
+ if (!headers.has('Connection') && !agent) {
+ headers.set('Connection', 'close');
+ }
+
+ // HTTP-network fetch step 4.2
+ // chunked encoding is handled by Node.js
+
+ return Object.assign({}, parsedURL, {
+ method: request.method,
+ headers: exportNodeCompatibleHeaders(headers),
+ agent
+ });
+}
+
+/**
+ * abort-error.js
+ *
+ * AbortError interface for cancelled requests
+ */
+
+/**
+ * Create AbortError instance
+ *
+ * @param String message Error message for human
+ * @return AbortError
+ */
+function AbortError(message) {
+ Error.call(this, message);
+
+ this.type = 'aborted';
+ this.message = message;
+
+ // hide custom error implementation details from end-users
+ Error.captureStackTrace(this, this.constructor);
+}
+
+AbortError.prototype = Object.create(Error.prototype);
+AbortError.prototype.constructor = AbortError;
+AbortError.prototype.name = 'AbortError';
+
+// fix an issue where "PassThrough", "resolve" aren't a named export for node <10
+const PassThrough$1 = Stream.PassThrough;
+const resolve_url = Url.resolve;
+
+/**
+ * Fetch function
+ *
+ * @param Mixed url Absolute url or Request instance
+ * @param Object opts Fetch options
+ * @return Promise
+ */
+function fetch(url, opts) {
+
+ // allow custom promise
+ if (!fetch.Promise) {
+ throw new Error('native promise missing, set fetch.Promise to your favorite alternative');
+ }
+
+ Body.Promise = fetch.Promise;
+
+ // wrap http.request into fetch
+ return new fetch.Promise(function (resolve, reject) {
+ // build request object
+ const request = new Request(url, opts);
+ const options = getNodeRequestOptions(request);
+
+ const send = (options.protocol === 'https:' ? https : http).request;
+ const signal = request.signal;
+
+ let response = null;
+
+ const abort = function abort() {
+ let error = new AbortError('The user aborted a request.');
+ reject(error);
+ if (request.body && request.body instanceof Stream.Readable) {
+ request.body.destroy(error);
+ }
+ if (!response || !response.body) return;
+ response.body.emit('error', error);
+ };
+
+ if (signal && signal.aborted) {
+ abort();
+ return;
+ }
+
+ const abortAndFinalize = function abortAndFinalize() {
+ abort();
+ finalize();
+ };
+
+ // send request
+ const req = send(options);
+ let reqTimeout;
+
+ if (signal) {
+ signal.addEventListener('abort', abortAndFinalize);
+ }
+
+ function finalize() {
+ req.abort();
+ if (signal) signal.removeEventListener('abort', abortAndFinalize);
+ clearTimeout(reqTimeout);
+ }
+
+ if (request.timeout) {
+ req.once('socket', function (socket) {
+ reqTimeout = setTimeout(function () {
+ reject(new FetchError(`network timeout at: ${request.url}`, 'request-timeout'));
+ finalize();
+ }, request.timeout);
+ });
+ }
+
+ req.on('error', function (err) {
+ reject(new FetchError(`request to ${request.url} failed, reason: ${err.message}`, 'system', err));
+ finalize();
+ });
+
+ req.on('response', function (res) {
+ clearTimeout(reqTimeout);
+
+ const headers = createHeadersLenient(res.headers);
+
+ // HTTP fetch step 5
+ if (fetch.isRedirect(res.statusCode)) {
+ // HTTP fetch step 5.2
+ const location = headers.get('Location');
+
+ // HTTP fetch step 5.3
+ const locationURL = location === null ? null : resolve_url(request.url, location);
+
+ // HTTP fetch step 5.5
+ switch (request.redirect) {
+ case 'error':
+ reject(new FetchError(`uri requested responds with a redirect, redirect mode is set to error: ${request.url}`, 'no-redirect'));
+ finalize();
+ return;
+ case 'manual':
+ // node-fetch-specific step: make manual redirect a bit easier to use by setting the Location header value to the resolved URL.
+ if (locationURL !== null) {
+ // handle corrupted header
+ try {
+ headers.set('Location', locationURL);
+ } catch (err) {
+ // istanbul ignore next: nodejs server prevent invalid response headers, we can't test this through normal request
+ reject(err);
+ }
+ }
+ break;
+ case 'follow':
+ // HTTP-redirect fetch step 2
+ if (locationURL === null) {
+ break;
+ }
+
+ // HTTP-redirect fetch step 5
+ if (request.counter >= request.follow) {
+ reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect'));
+ finalize();
+ return;
+ }
+
+ // HTTP-redirect fetch step 6 (counter increment)
+ // Create a new Request object.
+ const requestOpts = {
+ headers: new Headers(request.headers),
+ follow: request.follow,
+ counter: request.counter + 1,
+ agent: request.agent,
+ compress: request.compress,
+ method: request.method,
+ body: request.body,
+ signal: request.signal,
+ timeout: request.timeout,
+ size: request.size
+ };
+
+ // HTTP-redirect fetch step 9
+ if (res.statusCode !== 303 && request.body && getTotalBytes(request) === null) {
+ reject(new FetchError('Cannot follow redirect with body being a readable stream', 'unsupported-redirect'));
+ finalize();
+ return;
+ }
+
+ // HTTP-redirect fetch step 11
+ if (res.statusCode === 303 || (res.statusCode === 301 || res.statusCode === 302) && request.method === 'POST') {
+ requestOpts.method = 'GET';
+ requestOpts.body = undefined;
+ requestOpts.headers.delete('content-length');
+ }
+
+ // HTTP-redirect fetch step 15
+ resolve(fetch(new Request(locationURL, requestOpts)));
+ finalize();
+ return;
+ }
+ }
+
+ // prepare response
+ res.once('end', function () {
+ if (signal) signal.removeEventListener('abort', abortAndFinalize);
+ });
+ let body = res.pipe(new PassThrough$1());
+
+ const response_options = {
+ url: request.url,
+ status: res.statusCode,
+ statusText: res.statusMessage,
+ headers: headers,
+ size: request.size,
+ timeout: request.timeout,
+ counter: request.counter
+ };
+
+ // HTTP-network fetch step 12.1.1.3
+ const codings = headers.get('Content-Encoding');
+
+ // HTTP-network fetch step 12.1.1.4: handle content codings
+
+ // in following scenarios we ignore compression support
+ // 1. compression support is disabled
+ // 2. HEAD request
+ // 3. no Content-Encoding header
+ // 4. no content response (204)
+ // 5. content not modified response (304)
+ if (!request.compress || request.method === 'HEAD' || codings === null || res.statusCode === 204 || res.statusCode === 304) {
+ response = new Response(body, response_options);
+ resolve(response);
+ return;
+ }
+
+ // For Node v6+
+ // Be less strict when decoding compressed responses, since sometimes
+ // servers send slightly invalid responses that are still accepted
+ // by common browsers.
+ // Always using Z_SYNC_FLUSH is what cURL does.
+ const zlibOptions = {
+ flush: zlib.Z_SYNC_FLUSH,
+ finishFlush: zlib.Z_SYNC_FLUSH
+ };
+
+ // for gzip
+ if (codings == 'gzip' || codings == 'x-gzip') {
+ body = body.pipe(zlib.createGunzip(zlibOptions));
+ response = new Response(body, response_options);
+ resolve(response);
+ return;
+ }
+
+ // for deflate
+ if (codings == 'deflate' || codings == 'x-deflate') {
+ // handle the infamous raw deflate response from old servers
+ // a hack for old IIS and Apache servers
+ const raw = res.pipe(new PassThrough$1());
+ raw.once('data', function (chunk) {
+ // see http://stackoverflow.com/questions/37519828
+ if ((chunk[0] & 0x0F) === 0x08) {
+ body = body.pipe(zlib.createInflate());
+ } else {
+ body = body.pipe(zlib.createInflateRaw());
+ }
+ response = new Response(body, response_options);
+ resolve(response);
+ });
+ return;
+ }
+
+ // for br
+ if (codings == 'br' && typeof zlib.createBrotliDecompress === 'function') {
+ body = body.pipe(zlib.createBrotliDecompress());
+ response = new Response(body, response_options);
+ resolve(response);
+ return;
+ }
+
+ // otherwise, use response as-is
+ response = new Response(body, response_options);
+ resolve(response);
+ });
+
+ writeToStream(req, request);
+ });
+}
+/**
+ * Redirect code matching
+ *
+ * @param Number code Status code
+ * @return Boolean
+ */
+fetch.isRedirect = function (code) {
+ return code === 301 || code === 302 || code === 303 || code === 307 || code === 308;
+};
+
+// expose Promise
+fetch.Promise = global.Promise;
+
+export default fetch;
+export { Headers, Request, Response, FetchError };
diff --git a/backend/node_modules/node-fetch/lib/index.js b/backend/node_modules/node-fetch/lib/index.js
new file mode 100644
index 0000000..45d3985
--- /dev/null
+++ b/backend/node_modules/node-fetch/lib/index.js
@@ -0,0 +1,1671 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
+
+var Stream = _interopDefault(require('stream'));
+var http = _interopDefault(require('http'));
+var Url = _interopDefault(require('url'));
+var whatwgUrl = _interopDefault(require('whatwg-url'));
+var https = _interopDefault(require('https'));
+var zlib = _interopDefault(require('zlib'));
+
+// Based on https://github.com/tmpvar/jsdom/blob/aa85b2abf07766ff7bf5c1f6daafb3726f2f2db5/lib/jsdom/living/blob.js
+
+// fix for "Readable" isn't a named export issue
+const Readable = Stream.Readable;
+
+const BUFFER = Symbol('buffer');
+const TYPE = Symbol('type');
+
+class Blob {
+ constructor() {
+ this[TYPE] = '';
+
+ const blobParts = arguments[0];
+ const options = arguments[1];
+
+ const buffers = [];
+ let size = 0;
+
+ if (blobParts) {
+ const a = blobParts;
+ const length = Number(a.length);
+ for (let i = 0; i < length; i++) {
+ const element = a[i];
+ let buffer;
+ if (element instanceof Buffer) {
+ buffer = element;
+ } else if (ArrayBuffer.isView(element)) {
+ buffer = Buffer.from(element.buffer, element.byteOffset, element.byteLength);
+ } else if (element instanceof ArrayBuffer) {
+ buffer = Buffer.from(element);
+ } else if (element instanceof Blob) {
+ buffer = element[BUFFER];
+ } else {
+ buffer = Buffer.from(typeof element === 'string' ? element : String(element));
+ }
+ size += buffer.length;
+ buffers.push(buffer);
+ }
+ }
+
+ this[BUFFER] = Buffer.concat(buffers);
+
+ let type = options && options.type !== undefined && String(options.type).toLowerCase();
+ if (type && !/[^\u0020-\u007E]/.test(type)) {
+ this[TYPE] = type;
+ }
+ }
+ get size() {
+ return this[BUFFER].length;
+ }
+ get type() {
+ return this[TYPE];
+ }
+ text() {
+ return Promise.resolve(this[BUFFER].toString());
+ }
+ arrayBuffer() {
+ const buf = this[BUFFER];
+ const ab = buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+ return Promise.resolve(ab);
+ }
+ stream() {
+ const readable = new Readable();
+ readable._read = function () {};
+ readable.push(this[BUFFER]);
+ readable.push(null);
+ return readable;
+ }
+ toString() {
+ return '[object Blob]';
+ }
+ slice() {
+ const size = this.size;
+
+ const start = arguments[0];
+ const end = arguments[1];
+ let relativeStart, relativeEnd;
+ if (start === undefined) {
+ relativeStart = 0;
+ } else if (start < 0) {
+ relativeStart = Math.max(size + start, 0);
+ } else {
+ relativeStart = Math.min(start, size);
+ }
+ if (end === undefined) {
+ relativeEnd = size;
+ } else if (end < 0) {
+ relativeEnd = Math.max(size + end, 0);
+ } else {
+ relativeEnd = Math.min(end, size);
+ }
+ const span = Math.max(relativeEnd - relativeStart, 0);
+
+ const buffer = this[BUFFER];
+ const slicedBuffer = buffer.slice(relativeStart, relativeStart + span);
+ const blob = new Blob([], { type: arguments[2] });
+ blob[BUFFER] = slicedBuffer;
+ return blob;
+ }
+}
+
+Object.defineProperties(Blob.prototype, {
+ size: { enumerable: true },
+ type: { enumerable: true },
+ slice: { enumerable: true }
+});
+
+Object.defineProperty(Blob.prototype, Symbol.toStringTag, {
+ value: 'Blob',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+/**
+ * fetch-error.js
+ *
+ * FetchError interface for operational errors
+ */
+
+/**
+ * Create FetchError instance
+ *
+ * @param String message Error message for human
+ * @param String type Error type for machine
+ * @param String systemError For Node.js system error
+ * @return FetchError
+ */
+function FetchError(message, type, systemError) {
+ Error.call(this, message);
+
+ this.message = message;
+ this.type = type;
+
+ // when err.type is `system`, err.code contains system error code
+ if (systemError) {
+ this.code = this.errno = systemError.code;
+ }
+
+ // hide custom error implementation details from end-users
+ Error.captureStackTrace(this, this.constructor);
+}
+
+FetchError.prototype = Object.create(Error.prototype);
+FetchError.prototype.constructor = FetchError;
+FetchError.prototype.name = 'FetchError';
+
+let convert;
+try {
+ convert = require('encoding').convert;
+} catch (e) {}
+
+const INTERNALS = Symbol('Body internals');
+
+// fix an issue where "PassThrough" isn't a named export for node <10
+const PassThrough = Stream.PassThrough;
+
+/**
+ * Body mixin
+ *
+ * Ref: https://fetch.spec.whatwg.org/#body
+ *
+ * @param Stream body Readable stream
+ * @param Object opts Response options
+ * @return Void
+ */
+function Body(body) {
+ var _this = this;
+
+ var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+ _ref$size = _ref.size;
+
+ let size = _ref$size === undefined ? 0 : _ref$size;
+ var _ref$timeout = _ref.timeout;
+ let timeout = _ref$timeout === undefined ? 0 : _ref$timeout;
+
+ if (body == null) {
+ // body is undefined or null
+ body = null;
+ } else if (isURLSearchParams(body)) {
+ // body is a URLSearchParams
+ body = Buffer.from(body.toString());
+ } else if (isBlob(body)) ; else if (Buffer.isBuffer(body)) ; else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+ // body is ArrayBuffer
+ body = Buffer.from(body);
+ } else if (ArrayBuffer.isView(body)) {
+ // body is ArrayBufferView
+ body = Buffer.from(body.buffer, body.byteOffset, body.byteLength);
+ } else if (body instanceof Stream) ; else {
+ // none of the above
+ // coerce to string then buffer
+ body = Buffer.from(String(body));
+ }
+ this[INTERNALS] = {
+ body,
+ disturbed: false,
+ error: null
+ };
+ this.size = size;
+ this.timeout = timeout;
+
+ if (body instanceof Stream) {
+ body.on('error', function (err) {
+ const error = err.name === 'AbortError' ? err : new FetchError(`Invalid response body while trying to fetch ${_this.url}: ${err.message}`, 'system', err);
+ _this[INTERNALS].error = error;
+ });
+ }
+}
+
+Body.prototype = {
+ get body() {
+ return this[INTERNALS].body;
+ },
+
+ get bodyUsed() {
+ return this[INTERNALS].disturbed;
+ },
+
+ /**
+ * Decode response as ArrayBuffer
+ *
+ * @return Promise
+ */
+ arrayBuffer() {
+ return consumeBody.call(this).then(function (buf) {
+ return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+ });
+ },
+
+ /**
+ * Return raw response as Blob
+ *
+ * @return Promise
+ */
+ blob() {
+ let ct = this.headers && this.headers.get('content-type') || '';
+ return consumeBody.call(this).then(function (buf) {
+ return Object.assign(
+ // Prevent copying
+ new Blob([], {
+ type: ct.toLowerCase()
+ }), {
+ [BUFFER]: buf
+ });
+ });
+ },
+
+ /**
+ * Decode response as json
+ *
+ * @return Promise
+ */
+ json() {
+ var _this2 = this;
+
+ return consumeBody.call(this).then(function (buffer) {
+ try {
+ return JSON.parse(buffer.toString());
+ } catch (err) {
+ return Body.Promise.reject(new FetchError(`invalid json response body at ${_this2.url} reason: ${err.message}`, 'invalid-json'));
+ }
+ });
+ },
+
+ /**
+ * Decode response as text
+ *
+ * @return Promise
+ */
+ text() {
+ return consumeBody.call(this).then(function (buffer) {
+ return buffer.toString();
+ });
+ },
+
+ /**
+ * Decode response as buffer (non-spec api)
+ *
+ * @return Promise
+ */
+ buffer() {
+ return consumeBody.call(this);
+ },
+
+ /**
+ * Decode response as text, while automatically detecting the encoding and
+ * trying to decode to UTF-8 (non-spec api)
+ *
+ * @return Promise
+ */
+ textConverted() {
+ var _this3 = this;
+
+ return consumeBody.call(this).then(function (buffer) {
+ return convertBody(buffer, _this3.headers);
+ });
+ }
+};
+
+// In browsers, all properties are enumerable.
+Object.defineProperties(Body.prototype, {
+ body: { enumerable: true },
+ bodyUsed: { enumerable: true },
+ arrayBuffer: { enumerable: true },
+ blob: { enumerable: true },
+ json: { enumerable: true },
+ text: { enumerable: true }
+});
+
+Body.mixIn = function (proto) {
+ for (const name of Object.getOwnPropertyNames(Body.prototype)) {
+ // istanbul ignore else: future proof
+ if (!(name in proto)) {
+ const desc = Object.getOwnPropertyDescriptor(Body.prototype, name);
+ Object.defineProperty(proto, name, desc);
+ }
+ }
+};
+
+/**
+ * Consume and convert an entire Body to a Buffer.
+ *
+ * Ref: https://fetch.spec.whatwg.org/#concept-body-consume-body
+ *
+ * @return Promise
+ */
+function consumeBody() {
+ var _this4 = this;
+
+ if (this[INTERNALS].disturbed) {
+ return Body.Promise.reject(new TypeError(`body used already for: ${this.url}`));
+ }
+
+ this[INTERNALS].disturbed = true;
+
+ if (this[INTERNALS].error) {
+ return Body.Promise.reject(this[INTERNALS].error);
+ }
+
+ let body = this.body;
+
+ // body is null
+ if (body === null) {
+ return Body.Promise.resolve(Buffer.alloc(0));
+ }
+
+ // body is blob
+ if (isBlob(body)) {
+ body = body.stream();
+ }
+
+ // body is buffer
+ if (Buffer.isBuffer(body)) {
+ return Body.Promise.resolve(body);
+ }
+
+ // istanbul ignore if: should never happen
+ if (!(body instanceof Stream)) {
+ return Body.Promise.resolve(Buffer.alloc(0));
+ }
+
+ // body is stream
+ // get ready to actually consume the body
+ let accum = [];
+ let accumBytes = 0;
+ let abort = false;
+
+ return new Body.Promise(function (resolve, reject) {
+ let resTimeout;
+
+ // allow timeout on slow response body
+ if (_this4.timeout) {
+ resTimeout = setTimeout(function () {
+ abort = true;
+ reject(new FetchError(`Response timeout while trying to fetch ${_this4.url} (over ${_this4.timeout}ms)`, 'body-timeout'));
+ }, _this4.timeout);
+ }
+
+ // handle stream errors
+ body.on('error', function (err) {
+ if (err.name === 'AbortError') {
+ // if the request was aborted, reject with this Error
+ abort = true;
+ reject(err);
+ } else {
+ // other errors, such as incorrect content-encoding
+ reject(new FetchError(`Invalid response body while trying to fetch ${_this4.url}: ${err.message}`, 'system', err));
+ }
+ });
+
+ body.on('data', function (chunk) {
+ if (abort || chunk === null) {
+ return;
+ }
+
+ if (_this4.size && accumBytes + chunk.length > _this4.size) {
+ abort = true;
+ reject(new FetchError(`content size at ${_this4.url} over limit: ${_this4.size}`, 'max-size'));
+ return;
+ }
+
+ accumBytes += chunk.length;
+ accum.push(chunk);
+ });
+
+ body.on('end', function () {
+ if (abort) {
+ return;
+ }
+
+ clearTimeout(resTimeout);
+
+ try {
+ resolve(Buffer.concat(accum, accumBytes));
+ } catch (err) {
+ // handle streams that have accumulated too much data (issue #414)
+ reject(new FetchError(`Could not create Buffer from response body for ${_this4.url}: ${err.message}`, 'system', err));
+ }
+ });
+ });
+}
+
+/**
+ * Detect buffer encoding and convert to target encoding
+ * ref: http://www.w3.org/TR/2011/WD-html5-20110113/parsing.html#determining-the-character-encoding
+ *
+ * @param Buffer buffer Incoming buffer
+ * @param String encoding Target encoding
+ * @return String
+ */
+function convertBody(buffer, headers) {
+ if (typeof convert !== 'function') {
+ throw new Error('The package `encoding` must be installed to use the textConverted() function');
+ }
+
+ const ct = headers.get('content-type');
+ let charset = 'utf-8';
+ let res, str;
+
+ // header
+ if (ct) {
+ res = /charset=([^;]*)/i.exec(ct);
+ }
+
+ // no charset in content type, peek at response body for at most 1024 bytes
+ str = buffer.slice(0, 1024).toString();
+
+ // html5
+ if (!res && str) {
+ res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str);
+ }
+
+ // html4
+ if (!res && str) {
+ res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str);
+ if (!res) {
+ res = /<meta[\s]+?content=(['"])(.+?)\1[\s]+?http-equiv=(['"])content-type\3/i.exec(str);
+ if (res) {
+ res.pop(); // drop last quote
+ }
+ }
+
+ if (res) {
+ res = /charset=(.*)/i.exec(res.pop());
+ }
+ }
+
+ // xml
+ if (!res && str) {
+ res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str);
+ }
+
+ // found charset
+ if (res) {
+ charset = res.pop();
+
+ // prevent decode issues when sites use incorrect encoding
+ // ref: https://hsivonen.fi/encoding-menu/
+ if (charset === 'gb2312' || charset === 'gbk') {
+ charset = 'gb18030';
+ }
+ }
+
+ // turn raw buffers into a single utf-8 buffer
+ return convert(buffer, 'UTF-8', charset).toString();
+}
+
+/**
+ * Detect a URLSearchParams object
+ * ref: https://github.com/bitinn/node-fetch/issues/296#issuecomment-307598143
+ *
+ * @param Object obj Object to detect by type or brand
+ * @return String
+ */
+function isURLSearchParams(obj) {
+ // Duck-typing as a necessary condition.
+ if (typeof obj !== 'object' || typeof obj.append !== 'function' || typeof obj.delete !== 'function' || typeof obj.get !== 'function' || typeof obj.getAll !== 'function' || typeof obj.has !== 'function' || typeof obj.set !== 'function') {
+ return false;
+ }
+
+ // Brand-checking and more duck-typing as optional condition.
+ return obj.constructor.name === 'URLSearchParams' || Object.prototype.toString.call(obj) === '[object URLSearchParams]' || typeof obj.sort === 'function';
+}
+
+/**
+ * Check if `obj` is a W3C `Blob` object (which `File` inherits from)
+ * @param {*} obj
+ * @return {boolean}
+ */
+function isBlob(obj) {
+ return typeof obj === 'object' && typeof obj.arrayBuffer === 'function' && typeof obj.type === 'string' && typeof obj.stream === 'function' && typeof obj.constructor === 'function' && typeof obj.constructor.name === 'string' && /^(Blob|File)$/.test(obj.constructor.name) && /^(Blob|File)$/.test(obj[Symbol.toStringTag]);
+}
+
+/**
+ * Clone body given Res/Req instance
+ *
+ * @param Mixed instance Response or Request instance
+ * @return Mixed
+ */
+function clone(instance) {
+ let p1, p2;
+ let body = instance.body;
+
+ // don't allow cloning a used body
+ if (instance.bodyUsed) {
+ throw new Error('cannot clone body after it is used');
+ }
+
+ // check that body is a stream and not form-data object
+ // note: we can't clone the form-data object without having it as a dependency
+ if (body instanceof Stream && typeof body.getBoundary !== 'function') {
+ // tee instance body
+ p1 = new PassThrough();
+ p2 = new PassThrough();
+ body.pipe(p1);
+ body.pipe(p2);
+ // set instance body to teed body and return the other teed body
+ instance[INTERNALS].body = p1;
+ body = p2;
+ }
+
+ return body;
+}
+
+/**
+ * Performs the operation "extract a `Content-Type` value from |object|" as
+ * specified in the specification:
+ * https://fetch.spec.whatwg.org/#concept-bodyinit-extract
+ *
+ * This function assumes that instance.body is present.
+ *
+ * @param Mixed instance Any options.body input
+ */
+function extractContentType(body) {
+ if (body === null) {
+ // body is null
+ return null;
+ } else if (typeof body === 'string') {
+ // body is string
+ return 'text/plain;charset=UTF-8';
+ } else if (isURLSearchParams(body)) {
+ // body is a URLSearchParams
+ return 'application/x-www-form-urlencoded;charset=UTF-8';
+ } else if (isBlob(body)) {
+ // body is blob
+ return body.type || null;
+ } else if (Buffer.isBuffer(body)) {
+ // body is buffer
+ return null;
+ } else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+ // body is ArrayBuffer
+ return null;
+ } else if (ArrayBuffer.isView(body)) {
+ // body is ArrayBufferView
+ return null;
+ } else if (typeof body.getBoundary === 'function') {
+ // detect form data input from form-data module
+ return `multipart/form-data;boundary=${body.getBoundary()}`;
+ } else if (body instanceof Stream) {
+ // body is stream
+ // can't really do much about this
+ return null;
+ } else {
+ // Body constructor defaults other things to string
+ return 'text/plain;charset=UTF-8';
+ }
+}
+
+/**
+ * The Fetch Standard treats this as if "total bytes" is a property on the body.
+ * For us, we have to explicitly get it with a function.
+ *
+ * ref: https://fetch.spec.whatwg.org/#concept-body-total-bytes
+ *
+ * @param Body instance Instance of Body
+ * @return Number? Number of bytes, or null if not possible
+ */
+function getTotalBytes(instance) {
+ const body = instance.body;
+
+
+ if (body === null) {
+ // body is null
+ return 0;
+ } else if (isBlob(body)) {
+ return body.size;
+ } else if (Buffer.isBuffer(body)) {
+ // body is buffer
+ return body.length;
+ } else if (body && typeof body.getLengthSync === 'function') {
+ // detect form data input from form-data module
+ if (body._lengthRetrievers && body._lengthRetrievers.length == 0 || // 1.x
+ body.hasKnownLength && body.hasKnownLength()) {
+ // 2.x
+ return body.getLengthSync();
+ }
+ return null;
+ } else {
+ // body is stream
+ return null;
+ }
+}
+
+/**
+ * Write a Body to a Node.js WritableStream (e.g. http.Request) object.
+ *
+ * @param Body instance Instance of Body
+ * @return Void
+ */
+function writeToStream(dest, instance) {
+ const body = instance.body;
+
+
+ if (body === null) {
+ // body is null
+ dest.end();
+ } else if (isBlob(body)) {
+ body.stream().pipe(dest);
+ } else if (Buffer.isBuffer(body)) {
+ // body is buffer
+ dest.write(body);
+ dest.end();
+ } else {
+ // body is stream
+ body.pipe(dest);
+ }
+}
+
+// expose Promise
+Body.Promise = global.Promise;
+
+/**
+ * headers.js
+ *
+ * Headers class offers convenient helpers
+ */
+
+const invalidTokenRegex = /[^\^_`a-zA-Z\-0-9!#$%&'*+.|~]/;
+const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/;
+
+function validateName(name) {
+ name = `${name}`;
+ if (invalidTokenRegex.test(name) || name === '') {
+ throw new TypeError(`${name} is not a legal HTTP header name`);
+ }
+}
+
+function validateValue(value) {
+ value = `${value}`;
+ if (invalidHeaderCharRegex.test(value)) {
+ throw new TypeError(`${value} is not a legal HTTP header value`);
+ }
+}
+
+/**
+ * Find the key in the map object given a header name.
+ *
+ * Returns undefined if not found.
+ *
+ * @param String name Header name
+ * @return String|Undefined
+ */
+function find(map, name) {
+ name = name.toLowerCase();
+ for (const key in map) {
+ if (key.toLowerCase() === name) {
+ return key;
+ }
+ }
+ return undefined;
+}
+
+const MAP = Symbol('map');
+class Headers {
+ /**
+ * Headers class
+ *
+ * @param Object headers Response headers
+ * @return Void
+ */
+ constructor() {
+ let init = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined;
+
+ this[MAP] = Object.create(null);
+
+ if (init instanceof Headers) {
+ const rawHeaders = init.raw();
+ const headerNames = Object.keys(rawHeaders);
+
+ for (const headerName of headerNames) {
+ for (const value of rawHeaders[headerName]) {
+ this.append(headerName, value);
+ }
+ }
+
+ return;
+ }
+
+ // We don't worry about converting prop to ByteString here as append()
+ // will handle it.
+ if (init == null) ; else if (typeof init === 'object') {
+ const method = init[Symbol.iterator];
+ if (method != null) {
+ if (typeof method !== 'function') {
+ throw new TypeError('Header pairs must be iterable');
+ }
+
+ // sequence<sequence<ByteString>>
+ // Note: per spec we have to first exhaust the lists then process them
+ const pairs = [];
+ for (const pair of init) {
+ if (typeof pair !== 'object' || typeof pair[Symbol.iterator] !== 'function') {
+ throw new TypeError('Each header pair must be iterable');
+ }
+ pairs.push(Array.from(pair));
+ }
+
+ for (const pair of pairs) {
+ if (pair.length !== 2) {
+ throw new TypeError('Each header pair must be a name/value tuple');
+ }
+ this.append(pair[0], pair[1]);
+ }
+ } else {
+ // record<ByteString, ByteString>
+ for (const key of Object.keys(init)) {
+ const value = init[key];
+ this.append(key, value);
+ }
+ }
+ } else {
+ throw new TypeError('Provided initializer must be an object');
+ }
+ }
+
+ /**
+ * Return combined header value given name
+ *
+ * @param String name Header name
+ * @return Mixed
+ */
+ get(name) {
+ name = `${name}`;
+ validateName(name);
+ const key = find(this[MAP], name);
+ if (key === undefined) {
+ return null;
+ }
+
+ return this[MAP][key].join(', ');
+ }
+
+ /**
+ * Iterate over all headers
+ *
+ * @param Function callback Executed for each item with parameters (value, name, thisArg)
+ * @param Boolean thisArg `this` context for callback function
+ * @return Void
+ */
+ forEach(callback) {
+ let thisArg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined;
+
+ let pairs = getHeaders(this);
+ let i = 0;
+ while (i < pairs.length) {
+ var _pairs$i = pairs[i];
+ const name = _pairs$i[0],
+ value = _pairs$i[1];
+
+ callback.call(thisArg, value, name, this);
+ pairs = getHeaders(this);
+ i++;
+ }
+ }
+
+ /**
+ * Overwrite header values given name
+ *
+ * @param String name Header name
+ * @param String value Header value
+ * @return Void
+ */
+ set(name, value) {
+ name = `${name}`;
+ value = `${value}`;
+ validateName(name);
+ validateValue(value);
+ const key = find(this[MAP], name);
+ this[MAP][key !== undefined ? key : name] = [value];
+ }
+
+ /**
+ * Append a value onto existing header
+ *
+ * @param String name Header name
+ * @param String value Header value
+ * @return Void
+ */
+ append(name, value) {
+ name = `${name}`;
+ value = `${value}`;
+ validateName(name);
+ validateValue(value);
+ const key = find(this[MAP], name);
+ if (key !== undefined) {
+ this[MAP][key].push(value);
+ } else {
+ this[MAP][name] = [value];
+ }
+ }
+
+ /**
+ * Check for header name existence
+ *
+ * @param String name Header name
+ * @return Boolean
+ */
+ has(name) {
+ name = `${name}`;
+ validateName(name);
+ return find(this[MAP], name) !== undefined;
+ }
+
+ /**
+ * Delete all header values given name
+ *
+ * @param String name Header name
+ * @return Void
+ */
+ delete(name) {
+ name = `${name}`;
+ validateName(name);
+ const key = find(this[MAP], name);
+ if (key !== undefined) {
+ delete this[MAP][key];
+ }
+ }
+
+ /**
+ * Return raw headers (non-spec api)
+ *
+ * @return Object
+ */
+ raw() {
+ return this[MAP];
+ }
+
+ /**
+ * Get an iterator on keys.
+ *
+ * @return Iterator
+ */
+ keys() {
+ return createHeadersIterator(this, 'key');
+ }
+
+ /**
+ * Get an iterator on values.
+ *
+ * @return Iterator
+ */
+ values() {
+ return createHeadersIterator(this, 'value');
+ }
+
+ /**
+ * Get an iterator on entries.
+ *
+ * This is the default iterator of the Headers object.
+ *
+ * @return Iterator
+ */
+ [Symbol.iterator]() {
+ return createHeadersIterator(this, 'key+value');
+ }
+}
+Headers.prototype.entries = Headers.prototype[Symbol.iterator];
+
+Object.defineProperty(Headers.prototype, Symbol.toStringTag, {
+ value: 'Headers',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+Object.defineProperties(Headers.prototype, {
+ get: { enumerable: true },
+ forEach: { enumerable: true },
+ set: { enumerable: true },
+ append: { enumerable: true },
+ has: { enumerable: true },
+ delete: { enumerable: true },
+ keys: { enumerable: true },
+ values: { enumerable: true },
+ entries: { enumerable: true }
+});
+
+function getHeaders(headers) {
+ let kind = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'key+value';
+
+ const keys = Object.keys(headers[MAP]).sort();
+ return keys.map(kind === 'key' ? function (k) {
+ return k.toLowerCase();
+ } : kind === 'value' ? function (k) {
+ return headers[MAP][k].join(', ');
+ } : function (k) {
+ return [k.toLowerCase(), headers[MAP][k].join(', ')];
+ });
+}
+
+const INTERNAL = Symbol('internal');
+
+function createHeadersIterator(target, kind) {
+ const iterator = Object.create(HeadersIteratorPrototype);
+ iterator[INTERNAL] = {
+ target,
+ kind,
+ index: 0
+ };
+ return iterator;
+}
+
+const HeadersIteratorPrototype = Object.setPrototypeOf({
+ next() {
+ // istanbul ignore if
+ if (!this || Object.getPrototypeOf(this) !== HeadersIteratorPrototype) {
+ throw new TypeError('Value of `this` is not a HeadersIterator');
+ }
+
+ var _INTERNAL = this[INTERNAL];
+ const target = _INTERNAL.target,
+ kind = _INTERNAL.kind,
+ index = _INTERNAL.index;
+
+ const values = getHeaders(target, kind);
+ const len = values.length;
+ if (index >= len) {
+ return {
+ value: undefined,
+ done: true
+ };
+ }
+
+ this[INTERNAL].index = index + 1;
+
+ return {
+ value: values[index],
+ done: false
+ };
+ }
+}, Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())));
+
+Object.defineProperty(HeadersIteratorPrototype, Symbol.toStringTag, {
+ value: 'HeadersIterator',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+/**
+ * Export the Headers object in a form that Node.js can consume.
+ *
+ * @param Headers headers
+ * @return Object
+ */
+function exportNodeCompatibleHeaders(headers) {
+ const obj = Object.assign({ __proto__: null }, headers[MAP]);
+
+ // http.request() only supports string as Host header. This hack makes
+ // specifying custom Host header possible.
+ const hostHeaderKey = find(headers[MAP], 'Host');
+ if (hostHeaderKey !== undefined) {
+ obj[hostHeaderKey] = obj[hostHeaderKey][0];
+ }
+
+ return obj;
+}
+
+/**
+ * Create a Headers object from an object of headers, ignoring those that do
+ * not conform to HTTP grammar productions.
+ *
+ * @param Object obj Object of headers
+ * @return Headers
+ */
+function createHeadersLenient(obj) {
+ const headers = new Headers();
+ for (const name of Object.keys(obj)) {
+ if (invalidTokenRegex.test(name)) {
+ continue;
+ }
+ if (Array.isArray(obj[name])) {
+ for (const val of obj[name]) {
+ if (invalidHeaderCharRegex.test(val)) {
+ continue;
+ }
+ if (headers[MAP][name] === undefined) {
+ headers[MAP][name] = [val];
+ } else {
+ headers[MAP][name].push(val);
+ }
+ }
+ } else if (!invalidHeaderCharRegex.test(obj[name])) {
+ headers[MAP][name] = [obj[name]];
+ }
+ }
+ return headers;
+}
+
+const INTERNALS$1 = Symbol('Response internals');
+
+// fix an issue where "STATUS_CODES" aren't a named export for node <10
+const STATUS_CODES = http.STATUS_CODES;
+
+/**
+ * Response class
+ *
+ * @param Stream body Readable stream
+ * @param Object opts Response options
+ * @return Void
+ */
+class Response {
+ constructor() {
+ let body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+ let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ Body.call(this, body, opts);
+
+ const status = opts.status || 200;
+ const headers = new Headers(opts.headers);
+
+ if (body != null && !headers.has('Content-Type')) {
+ const contentType = extractContentType(body);
+ if (contentType) {
+ headers.append('Content-Type', contentType);
+ }
+ }
+
+ this[INTERNALS$1] = {
+ url: opts.url,
+ status,
+ statusText: opts.statusText || STATUS_CODES[status],
+ headers,
+ counter: opts.counter
+ };
+ }
+
+ get url() {
+ return this[INTERNALS$1].url || '';
+ }
+
+ get status() {
+ return this[INTERNALS$1].status;
+ }
+
+ /**
+ * Convenience property representing if the request ended normally
+ */
+ get ok() {
+ return this[INTERNALS$1].status >= 200 && this[INTERNALS$1].status < 300;
+ }
+
+ get redirected() {
+ return this[INTERNALS$1].counter > 0;
+ }
+
+ get statusText() {
+ return this[INTERNALS$1].statusText;
+ }
+
+ get headers() {
+ return this[INTERNALS$1].headers;
+ }
+
+ /**
+ * Clone this response
+ *
+ * @return Response
+ */
+ clone() {
+ return new Response(clone(this), {
+ url: this.url,
+ status: this.status,
+ statusText: this.statusText,
+ headers: this.headers,
+ ok: this.ok,
+ redirected: this.redirected
+ });
+ }
+}
+
+Body.mixIn(Response.prototype);
+
+Object.defineProperties(Response.prototype, {
+ url: { enumerable: true },
+ status: { enumerable: true },
+ ok: { enumerable: true },
+ redirected: { enumerable: true },
+ statusText: { enumerable: true },
+ headers: { enumerable: true },
+ clone: { enumerable: true }
+});
+
+Object.defineProperty(Response.prototype, Symbol.toStringTag, {
+ value: 'Response',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+const INTERNALS$2 = Symbol('Request internals');
+const URL = Url.URL || whatwgUrl.URL;
+
+// fix an issue where "format", "parse" aren't a named export for node <10
+const parse_url = Url.parse;
+const format_url = Url.format;
+
+/**
+ * Wrapper around `new URL` to handle arbitrary URLs
+ *
+ * @param {string} urlStr
+ * @return {void}
+ */
+function parseURL(urlStr) {
+ /*
+ Check whether the URL is absolute or not
+ Scheme: https://tools.ietf.org/html/rfc3986#section-3.1
+ Absolute URL: https://tools.ietf.org/html/rfc3986#section-4.3
+ */
+ if (/^[a-zA-Z][a-zA-Z\d+\-.]*:/.exec(urlStr)) {
+ urlStr = new URL(urlStr).toString();
+ }
+
+ // Fallback to old implementation for arbitrary URLs
+ return parse_url(urlStr);
+}
+
+const streamDestructionSupported = 'destroy' in Stream.Readable.prototype;
+
+/**
+ * Check if a value is an instance of Request.
+ *
+ * @param Mixed input
+ * @return Boolean
+ */
+function isRequest(input) {
+ return typeof input === 'object' && typeof input[INTERNALS$2] === 'object';
+}
+
+function isAbortSignal(signal) {
+ const proto = signal && typeof signal === 'object' && Object.getPrototypeOf(signal);
+ return !!(proto && proto.constructor.name === 'AbortSignal');
+}
+
+/**
+ * Request class
+ *
+ * @param Mixed input Url or Request instance
+ * @param Object init Custom options
+ * @return Void
+ */
+class Request {
+ constructor(input) {
+ let init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ let parsedURL;
+
+ // normalize input
+ if (!isRequest(input)) {
+ if (input && input.href) {
+ // in order to support Node.js' Url objects; though WHATWG's URL objects
+ // will fall into this branch also (since their `toString()` will return
+ // `href` property anyway)
+ parsedURL = parseURL(input.href);
+ } else {
+ // coerce input to a string before attempting to parse
+ parsedURL = parseURL(`${input}`);
+ }
+ input = {};
+ } else {
+ parsedURL = parseURL(input.url);
+ }
+
+ let method = init.method || input.method || 'GET';
+ method = method.toUpperCase();
+
+ if ((init.body != null || isRequest(input) && input.body !== null) && (method === 'GET' || method === 'HEAD')) {
+ throw new TypeError('Request with GET/HEAD method cannot have body');
+ }
+
+ let inputBody = init.body != null ? init.body : isRequest(input) && input.body !== null ? clone(input) : null;
+
+ Body.call(this, inputBody, {
+ timeout: init.timeout || input.timeout || 0,
+ size: init.size || input.size || 0
+ });
+
+ const headers = new Headers(init.headers || input.headers || {});
+
+ if (inputBody != null && !headers.has('Content-Type')) {
+ const contentType = extractContentType(inputBody);
+ if (contentType) {
+ headers.append('Content-Type', contentType);
+ }
+ }
+
+ let signal = isRequest(input) ? input.signal : null;
+ if ('signal' in init) signal = init.signal;
+
+ if (signal != null && !isAbortSignal(signal)) {
+ throw new TypeError('Expected signal to be an instanceof AbortSignal');
+ }
+
+ this[INTERNALS$2] = {
+ method,
+ redirect: init.redirect || input.redirect || 'follow',
+ headers,
+ parsedURL,
+ signal
+ };
+
+ // node-fetch-only options
+ this.follow = init.follow !== undefined ? init.follow : input.follow !== undefined ? input.follow : 20;
+ this.compress = init.compress !== undefined ? init.compress : input.compress !== undefined ? input.compress : true;
+ this.counter = init.counter || input.counter || 0;
+ this.agent = init.agent || input.agent;
+ }
+
+ get method() {
+ return this[INTERNALS$2].method;
+ }
+
+ get url() {
+ return format_url(this[INTERNALS$2].parsedURL);
+ }
+
+ get headers() {
+ return this[INTERNALS$2].headers;
+ }
+
+ get redirect() {
+ return this[INTERNALS$2].redirect;
+ }
+
+ get signal() {
+ return this[INTERNALS$2].signal;
+ }
+
+ /**
+ * Clone this request
+ *
+ * @return Request
+ */
+ clone() {
+ return new Request(this);
+ }
+}
+
+Body.mixIn(Request.prototype);
+
+Object.defineProperty(Request.prototype, Symbol.toStringTag, {
+ value: 'Request',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+Object.defineProperties(Request.prototype, {
+ method: { enumerable: true },
+ url: { enumerable: true },
+ headers: { enumerable: true },
+ redirect: { enumerable: true },
+ clone: { enumerable: true },
+ signal: { enumerable: true }
+});
+
+/**
+ * Convert a Request to Node.js http request options.
+ *
+ * @param Request A Request instance
+ * @return Object The options object to be passed to http.request
+ */
+function getNodeRequestOptions(request) {
+ const parsedURL = request[INTERNALS$2].parsedURL;
+ const headers = new Headers(request[INTERNALS$2].headers);
+
+ // fetch step 1.3
+ if (!headers.has('Accept')) {
+ headers.set('Accept', '*/*');
+ }
+
+ // Basic fetch
+ if (!parsedURL.protocol || !parsedURL.hostname) {
+ throw new TypeError('Only absolute URLs are supported');
+ }
+
+ if (!/^https?:$/.test(parsedURL.protocol)) {
+ throw new TypeError('Only HTTP(S) protocols are supported');
+ }
+
+ if (request.signal && request.body instanceof Stream.Readable && !streamDestructionSupported) {
+ throw new Error('Cancellation of streamed requests with AbortSignal is not supported in node < 8');
+ }
+
+ // HTTP-network-or-cache fetch steps 2.4-2.7
+ let contentLengthValue = null;
+ if (request.body == null && /^(POST|PUT)$/i.test(request.method)) {
+ contentLengthValue = '0';
+ }
+ if (request.body != null) {
+ const totalBytes = getTotalBytes(request);
+ if (typeof totalBytes === 'number') {
+ contentLengthValue = String(totalBytes);
+ }
+ }
+ if (contentLengthValue) {
+ headers.set('Content-Length', contentLengthValue);
+ }
+
+ // HTTP-network-or-cache fetch step 2.11
+ if (!headers.has('User-Agent')) {
+ headers.set('User-Agent', 'node-fetch/1.0 (+https://github.com/bitinn/node-fetch)');
+ }
+
+ // HTTP-network-or-cache fetch step 2.15
+ if (request.compress && !headers.has('Accept-Encoding')) {
+ headers.set('Accept-Encoding', 'gzip,deflate');
+ }
+
+ let agent = request.agent;
+ if (typeof agent === 'function') {
+ agent = agent(parsedURL);
+ }
+
+ if (!headers.has('Connection') && !agent) {
+ headers.set('Connection', 'close');
+ }
+
+ // HTTP-network fetch step 4.2
+ // chunked encoding is handled by Node.js
+
+ return Object.assign({}, parsedURL, {
+ method: request.method,
+ headers: exportNodeCompatibleHeaders(headers),
+ agent
+ });
+}
+
+/**
+ * abort-error.js
+ *
+ * AbortError interface for cancelled requests
+ */
+
+/**
+ * Create AbortError instance
+ *
+ * @param String message Error message for human
+ * @return AbortError
+ */
+function AbortError(message) {
+ Error.call(this, message);
+
+ this.type = 'aborted';
+ this.message = message;
+
+ // hide custom error implementation details from end-users
+ Error.captureStackTrace(this, this.constructor);
+}
+
+AbortError.prototype = Object.create(Error.prototype);
+AbortError.prototype.constructor = AbortError;
+AbortError.prototype.name = 'AbortError';
+
+// fix an issue where "PassThrough", "resolve" aren't a named export for node <10
+const PassThrough$1 = Stream.PassThrough;
+const resolve_url = Url.resolve;
+
+/**
+ * Fetch function
+ *
+ * @param Mixed url Absolute url or Request instance
+ * @param Object opts Fetch options
+ * @return Promise
+ */
+function fetch(url, opts) {
+
+ // allow custom promise
+ if (!fetch.Promise) {
+ throw new Error('native promise missing, set fetch.Promise to your favorite alternative');
+ }
+
+ Body.Promise = fetch.Promise;
+
+ // wrap http.request into fetch
+ return new fetch.Promise(function (resolve, reject) {
+ // build request object
+ const request = new Request(url, opts);
+ const options = getNodeRequestOptions(request);
+
+ const send = (options.protocol === 'https:' ? https : http).request;
+ const signal = request.signal;
+
+ let response = null;
+
+ const abort = function abort() {
+ let error = new AbortError('The user aborted a request.');
+ reject(error);
+ if (request.body && request.body instanceof Stream.Readable) {
+ request.body.destroy(error);
+ }
+ if (!response || !response.body) return;
+ response.body.emit('error', error);
+ };
+
+ if (signal && signal.aborted) {
+ abort();
+ return;
+ }
+
+ const abortAndFinalize = function abortAndFinalize() {
+ abort();
+ finalize();
+ };
+
+ // send request
+ const req = send(options);
+ let reqTimeout;
+
+ if (signal) {
+ signal.addEventListener('abort', abortAndFinalize);
+ }
+
+ function finalize() {
+ req.abort();
+ if (signal) signal.removeEventListener('abort', abortAndFinalize);
+ clearTimeout(reqTimeout);
+ }
+
+ if (request.timeout) {
+ req.once('socket', function (socket) {
+ reqTimeout = setTimeout(function () {
+ reject(new FetchError(`network timeout at: ${request.url}`, 'request-timeout'));
+ finalize();
+ }, request.timeout);
+ });
+ }
+
+ req.on('error', function (err) {
+ reject(new FetchError(`request to ${request.url} failed, reason: ${err.message}`, 'system', err));
+ finalize();
+ });
+
+ req.on('response', function (res) {
+ clearTimeout(reqTimeout);
+
+ const headers = createHeadersLenient(res.headers);
+
+ // HTTP fetch step 5
+ if (fetch.isRedirect(res.statusCode)) {
+ // HTTP fetch step 5.2
+ const location = headers.get('Location');
+
+ // HTTP fetch step 5.3
+ const locationURL = location === null ? null : resolve_url(request.url, location);
+
+ // HTTP fetch step 5.5
+ switch (request.redirect) {
+ case 'error':
+ reject(new FetchError(`uri requested responds with a redirect, redirect mode is set to error: ${request.url}`, 'no-redirect'));
+ finalize();
+ return;
+ case 'manual':
+ // node-fetch-specific step: make manual redirect a bit easier to use by setting the Location header value to the resolved URL.
+ if (locationURL !== null) {
+ // handle corrupted header
+ try {
+ headers.set('Location', locationURL);
+ } catch (err) {
+ // istanbul ignore next: nodejs server prevent invalid response headers, we can't test this through normal request
+ reject(err);
+ }
+ }
+ break;
+ case 'follow':
+ // HTTP-redirect fetch step 2
+ if (locationURL === null) {
+ break;
+ }
+
+ // HTTP-redirect fetch step 5
+ if (request.counter >= request.follow) {
+ reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect'));
+ finalize();
+ return;
+ }
+
+ // HTTP-redirect fetch step 6 (counter increment)
+ // Create a new Request object.
+ const requestOpts = {
+ headers: new Headers(request.headers),
+ follow: request.follow,
+ counter: request.counter + 1,
+ agent: request.agent,
+ compress: request.compress,
+ method: request.method,
+ body: request.body,
+ signal: request.signal,
+ timeout: request.timeout,
+ size: request.size
+ };
+
+ // HTTP-redirect fetch step 9
+ if (res.statusCode !== 303 && request.body && getTotalBytes(request) === null) {
+ reject(new FetchError('Cannot follow redirect with body being a readable stream', 'unsupported-redirect'));
+ finalize();
+ return;
+ }
+
+ // HTTP-redirect fetch step 11
+ if (res.statusCode === 303 || (res.statusCode === 301 || res.statusCode === 302) && request.method === 'POST') {
+ requestOpts.method = 'GET';
+ requestOpts.body = undefined;
+ requestOpts.headers.delete('content-length');
+ }
+
+ // HTTP-redirect fetch step 15
+ resolve(fetch(new Request(locationURL, requestOpts)));
+ finalize();
+ return;
+ }
+ }
+
+ // prepare response
+ res.once('end', function () {
+ if (signal) signal.removeEventListener('abort', abortAndFinalize);
+ });
+ let body = res.pipe(new PassThrough$1());
+
+ const response_options = {
+ url: request.url,
+ status: res.statusCode,
+ statusText: res.statusMessage,
+ headers: headers,
+ size: request.size,
+ timeout: request.timeout,
+ counter: request.counter
+ };
+
+ // HTTP-network fetch step 12.1.1.3
+ const codings = headers.get('Content-Encoding');
+
+ // HTTP-network fetch step 12.1.1.4: handle content codings
+
+ // in following scenarios we ignore compression support
+ // 1. compression support is disabled
+ // 2. HEAD request
+ // 3. no Content-Encoding header
+ // 4. no content response (204)
+ // 5. content not modified response (304)
+ if (!request.compress || request.method === 'HEAD' || codings === null || res.statusCode === 204 || res.statusCode === 304) {
+ response = new Response(body, response_options);
+ resolve(response);
+ return;
+ }
+
+ // For Node v6+
+ // Be less strict when decoding compressed responses, since sometimes
+ // servers send slightly invalid responses that are still accepted
+ // by common browsers.
+ // Always using Z_SYNC_FLUSH is what cURL does.
+ const zlibOptions = {
+ flush: zlib.Z_SYNC_FLUSH,
+ finishFlush: zlib.Z_SYNC_FLUSH
+ };
+
+ // for gzip
+ if (codings == 'gzip' || codings == 'x-gzip') {
+ body = body.pipe(zlib.createGunzip(zlibOptions));
+ response = new Response(body, response_options);
+ resolve(response);
+ return;
+ }
+
+ // for deflate
+ if (codings == 'deflate' || codings == 'x-deflate') {
+ // handle the infamous raw deflate response from old servers
+ // a hack for old IIS and Apache servers
+ const raw = res.pipe(new PassThrough$1());
+ raw.once('data', function (chunk) {
+ // see http://stackoverflow.com/questions/37519828
+ if ((chunk[0] & 0x0F) === 0x08) {
+ body = body.pipe(zlib.createInflate());
+ } else {
+ body = body.pipe(zlib.createInflateRaw());
+ }
+ response = new Response(body, response_options);
+ resolve(response);
+ });
+ return;
+ }
+
+ // for br
+ if (codings == 'br' && typeof zlib.createBrotliDecompress === 'function') {
+ body = body.pipe(zlib.createBrotliDecompress());
+ response = new Response(body, response_options);
+ resolve(response);
+ return;
+ }
+
+ // otherwise, use response as-is
+ response = new Response(body, response_options);
+ resolve(response);
+ });
+
+ writeToStream(req, request);
+ });
+}
+/**
+ * Redirect code matching
+ *
+ * @param Number code Status code
+ * @return Boolean
+ */
+fetch.isRedirect = function (code) {
+ return code === 301 || code === 302 || code === 303 || code === 307 || code === 308;
+};
+
+// expose Promise
+fetch.Promise = global.Promise;
+
+module.exports = exports = fetch;
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.default = exports;
+exports.Headers = Headers;
+exports.Request = Request;
+exports.Response = Response;
+exports.FetchError = FetchError;
diff --git a/backend/node_modules/node-fetch/lib/index.mjs b/backend/node_modules/node-fetch/lib/index.mjs
new file mode 100644
index 0000000..31260e5
--- /dev/null
+++ b/backend/node_modules/node-fetch/lib/index.mjs
@@ -0,0 +1,1660 @@
+import Stream from 'stream';
+import http from 'http';
+import Url from 'url';
+import whatwgUrl from 'whatwg-url';
+import https from 'https';
+import zlib from 'zlib';
+
+// Based on https://github.com/tmpvar/jsdom/blob/aa85b2abf07766ff7bf5c1f6daafb3726f2f2db5/lib/jsdom/living/blob.js
+
+// fix for "Readable" isn't a named export issue
+const Readable = Stream.Readable;
+
+const BUFFER = Symbol('buffer');
+const TYPE = Symbol('type');
+
+class Blob {
+ constructor() {
+ this[TYPE] = '';
+
+ const blobParts = arguments[0];
+ const options = arguments[1];
+
+ const buffers = [];
+ let size = 0;
+
+ if (blobParts) {
+ const a = blobParts;
+ const length = Number(a.length);
+ for (let i = 0; i < length; i++) {
+ const element = a[i];
+ let buffer;
+ if (element instanceof Buffer) {
+ buffer = element;
+ } else if (ArrayBuffer.isView(element)) {
+ buffer = Buffer.from(element.buffer, element.byteOffset, element.byteLength);
+ } else if (element instanceof ArrayBuffer) {
+ buffer = Buffer.from(element);
+ } else if (element instanceof Blob) {
+ buffer = element[BUFFER];
+ } else {
+ buffer = Buffer.from(typeof element === 'string' ? element : String(element));
+ }
+ size += buffer.length;
+ buffers.push(buffer);
+ }
+ }
+
+ this[BUFFER] = Buffer.concat(buffers);
+
+ let type = options && options.type !== undefined && String(options.type).toLowerCase();
+ if (type && !/[^\u0020-\u007E]/.test(type)) {
+ this[TYPE] = type;
+ }
+ }
+ get size() {
+ return this[BUFFER].length;
+ }
+ get type() {
+ return this[TYPE];
+ }
+ text() {
+ return Promise.resolve(this[BUFFER].toString());
+ }
+ arrayBuffer() {
+ const buf = this[BUFFER];
+ const ab = buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+ return Promise.resolve(ab);
+ }
+ stream() {
+ const readable = new Readable();
+ readable._read = function () {};
+ readable.push(this[BUFFER]);
+ readable.push(null);
+ return readable;
+ }
+ toString() {
+ return '[object Blob]';
+ }
+ slice() {
+ const size = this.size;
+
+ const start = arguments[0];
+ const end = arguments[1];
+ let relativeStart, relativeEnd;
+ if (start === undefined) {
+ relativeStart = 0;
+ } else if (start < 0) {
+ relativeStart = Math.max(size + start, 0);
+ } else {
+ relativeStart = Math.min(start, size);
+ }
+ if (end === undefined) {
+ relativeEnd = size;
+ } else if (end < 0) {
+ relativeEnd = Math.max(size + end, 0);
+ } else {
+ relativeEnd = Math.min(end, size);
+ }
+ const span = Math.max(relativeEnd - relativeStart, 0);
+
+ const buffer = this[BUFFER];
+ const slicedBuffer = buffer.slice(relativeStart, relativeStart + span);
+ const blob = new Blob([], { type: arguments[2] });
+ blob[BUFFER] = slicedBuffer;
+ return blob;
+ }
+}
+
+Object.defineProperties(Blob.prototype, {
+ size: { enumerable: true },
+ type: { enumerable: true },
+ slice: { enumerable: true }
+});
+
+Object.defineProperty(Blob.prototype, Symbol.toStringTag, {
+ value: 'Blob',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+/**
+ * fetch-error.js
+ *
+ * FetchError interface for operational errors
+ */
+
+/**
+ * Create FetchError instance
+ *
+ * @param String message Error message for human
+ * @param String type Error type for machine
+ * @param String systemError For Node.js system error
+ * @return FetchError
+ */
+function FetchError(message, type, systemError) {
+ Error.call(this, message);
+
+ this.message = message;
+ this.type = type;
+
+ // when err.type is `system`, err.code contains system error code
+ if (systemError) {
+ this.code = this.errno = systemError.code;
+ }
+
+ // hide custom error implementation details from end-users
+ Error.captureStackTrace(this, this.constructor);
+}
+
+FetchError.prototype = Object.create(Error.prototype);
+FetchError.prototype.constructor = FetchError;
+FetchError.prototype.name = 'FetchError';
+
+let convert;
+try {
+ convert = require('encoding').convert;
+} catch (e) {}
+
+const INTERNALS = Symbol('Body internals');
+
+// fix an issue where "PassThrough" isn't a named export for node <10
+const PassThrough = Stream.PassThrough;
+
+/**
+ * Body mixin
+ *
+ * Ref: https://fetch.spec.whatwg.org/#body
+ *
+ * @param Stream body Readable stream
+ * @param Object opts Response options
+ * @return Void
+ */
+function Body(body) {
+ var _this = this;
+
+ var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
+ _ref$size = _ref.size;
+
+ let size = _ref$size === undefined ? 0 : _ref$size;
+ var _ref$timeout = _ref.timeout;
+ let timeout = _ref$timeout === undefined ? 0 : _ref$timeout;
+
+ if (body == null) {
+ // body is undefined or null
+ body = null;
+ } else if (isURLSearchParams(body)) {
+ // body is a URLSearchParams
+ body = Buffer.from(body.toString());
+ } else if (isBlob(body)) ; else if (Buffer.isBuffer(body)) ; else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+ // body is ArrayBuffer
+ body = Buffer.from(body);
+ } else if (ArrayBuffer.isView(body)) {
+ // body is ArrayBufferView
+ body = Buffer.from(body.buffer, body.byteOffset, body.byteLength);
+ } else if (body instanceof Stream) ; else {
+ // none of the above
+ // coerce to string then buffer
+ body = Buffer.from(String(body));
+ }
+ this[INTERNALS] = {
+ body,
+ disturbed: false,
+ error: null
+ };
+ this.size = size;
+ this.timeout = timeout;
+
+ if (body instanceof Stream) {
+ body.on('error', function (err) {
+ const error = err.name === 'AbortError' ? err : new FetchError(`Invalid response body while trying to fetch ${_this.url}: ${err.message}`, 'system', err);
+ _this[INTERNALS].error = error;
+ });
+ }
+}
+
+Body.prototype = {
+ get body() {
+ return this[INTERNALS].body;
+ },
+
+ get bodyUsed() {
+ return this[INTERNALS].disturbed;
+ },
+
+ /**
+ * Decode response as ArrayBuffer
+ *
+ * @return Promise
+ */
+ arrayBuffer() {
+ return consumeBody.call(this).then(function (buf) {
+ return buf.buffer.slice(buf.byteOffset, buf.byteOffset + buf.byteLength);
+ });
+ },
+
+ /**
+ * Return raw response as Blob
+ *
+ * @return Promise
+ */
+ blob() {
+ let ct = this.headers && this.headers.get('content-type') || '';
+ return consumeBody.call(this).then(function (buf) {
+ return Object.assign(
+ // Prevent copying
+ new Blob([], {
+ type: ct.toLowerCase()
+ }), {
+ [BUFFER]: buf
+ });
+ });
+ },
+
+ /**
+ * Decode response as json
+ *
+ * @return Promise
+ */
+ json() {
+ var _this2 = this;
+
+ return consumeBody.call(this).then(function (buffer) {
+ try {
+ return JSON.parse(buffer.toString());
+ } catch (err) {
+ return Body.Promise.reject(new FetchError(`invalid json response body at ${_this2.url} reason: ${err.message}`, 'invalid-json'));
+ }
+ });
+ },
+
+ /**
+ * Decode response as text
+ *
+ * @return Promise
+ */
+ text() {
+ return consumeBody.call(this).then(function (buffer) {
+ return buffer.toString();
+ });
+ },
+
+ /**
+ * Decode response as buffer (non-spec api)
+ *
+ * @return Promise
+ */
+ buffer() {
+ return consumeBody.call(this);
+ },
+
+ /**
+ * Decode response as text, while automatically detecting the encoding and
+ * trying to decode to UTF-8 (non-spec api)
+ *
+ * @return Promise
+ */
+ textConverted() {
+ var _this3 = this;
+
+ return consumeBody.call(this).then(function (buffer) {
+ return convertBody(buffer, _this3.headers);
+ });
+ }
+};
+
+// In browsers, all properties are enumerable.
+Object.defineProperties(Body.prototype, {
+ body: { enumerable: true },
+ bodyUsed: { enumerable: true },
+ arrayBuffer: { enumerable: true },
+ blob: { enumerable: true },
+ json: { enumerable: true },
+ text: { enumerable: true }
+});
+
+Body.mixIn = function (proto) {
+ for (const name of Object.getOwnPropertyNames(Body.prototype)) {
+ // istanbul ignore else: future proof
+ if (!(name in proto)) {
+ const desc = Object.getOwnPropertyDescriptor(Body.prototype, name);
+ Object.defineProperty(proto, name, desc);
+ }
+ }
+};
+
+/**
+ * Consume and convert an entire Body to a Buffer.
+ *
+ * Ref: https://fetch.spec.whatwg.org/#concept-body-consume-body
+ *
+ * @return Promise
+ */
+function consumeBody() {
+ var _this4 = this;
+
+ if (this[INTERNALS].disturbed) {
+ return Body.Promise.reject(new TypeError(`body used already for: ${this.url}`));
+ }
+
+ this[INTERNALS].disturbed = true;
+
+ if (this[INTERNALS].error) {
+ return Body.Promise.reject(this[INTERNALS].error);
+ }
+
+ let body = this.body;
+
+ // body is null
+ if (body === null) {
+ return Body.Promise.resolve(Buffer.alloc(0));
+ }
+
+ // body is blob
+ if (isBlob(body)) {
+ body = body.stream();
+ }
+
+ // body is buffer
+ if (Buffer.isBuffer(body)) {
+ return Body.Promise.resolve(body);
+ }
+
+ // istanbul ignore if: should never happen
+ if (!(body instanceof Stream)) {
+ return Body.Promise.resolve(Buffer.alloc(0));
+ }
+
+ // body is stream
+ // get ready to actually consume the body
+ let accum = [];
+ let accumBytes = 0;
+ let abort = false;
+
+ return new Body.Promise(function (resolve, reject) {
+ let resTimeout;
+
+ // allow timeout on slow response body
+ if (_this4.timeout) {
+ resTimeout = setTimeout(function () {
+ abort = true;
+ reject(new FetchError(`Response timeout while trying to fetch ${_this4.url} (over ${_this4.timeout}ms)`, 'body-timeout'));
+ }, _this4.timeout);
+ }
+
+ // handle stream errors
+ body.on('error', function (err) {
+ if (err.name === 'AbortError') {
+ // if the request was aborted, reject with this Error
+ abort = true;
+ reject(err);
+ } else {
+ // other errors, such as incorrect content-encoding
+ reject(new FetchError(`Invalid response body while trying to fetch ${_this4.url}: ${err.message}`, 'system', err));
+ }
+ });
+
+ body.on('data', function (chunk) {
+ if (abort || chunk === null) {
+ return;
+ }
+
+ if (_this4.size && accumBytes + chunk.length > _this4.size) {
+ abort = true;
+ reject(new FetchError(`content size at ${_this4.url} over limit: ${_this4.size}`, 'max-size'));
+ return;
+ }
+
+ accumBytes += chunk.length;
+ accum.push(chunk);
+ });
+
+ body.on('end', function () {
+ if (abort) {
+ return;
+ }
+
+ clearTimeout(resTimeout);
+
+ try {
+ resolve(Buffer.concat(accum, accumBytes));
+ } catch (err) {
+ // handle streams that have accumulated too much data (issue #414)
+ reject(new FetchError(`Could not create Buffer from response body for ${_this4.url}: ${err.message}`, 'system', err));
+ }
+ });
+ });
+}
+
+/**
+ * Detect buffer encoding and convert to target encoding
+ * ref: http://www.w3.org/TR/2011/WD-html5-20110113/parsing.html#determining-the-character-encoding
+ *
+ * @param Buffer buffer Incoming buffer
+ * @param String encoding Target encoding
+ * @return String
+ */
+function convertBody(buffer, headers) {
+ if (typeof convert !== 'function') {
+ throw new Error('The package `encoding` must be installed to use the textConverted() function');
+ }
+
+ const ct = headers.get('content-type');
+ let charset = 'utf-8';
+ let res, str;
+
+ // header
+ if (ct) {
+ res = /charset=([^;]*)/i.exec(ct);
+ }
+
+ // no charset in content type, peek at response body for at most 1024 bytes
+ str = buffer.slice(0, 1024).toString();
+
+ // html5
+ if (!res && str) {
+ res = /<meta.+?charset=(['"])(.+?)\1/i.exec(str);
+ }
+
+ // html4
+ if (!res && str) {
+ res = /<meta[\s]+?http-equiv=(['"])content-type\1[\s]+?content=(['"])(.+?)\2/i.exec(str);
+ if (!res) {
+ res = /<meta[\s]+?content=(['"])(.+?)\1[\s]+?http-equiv=(['"])content-type\3/i.exec(str);
+ if (res) {
+ res.pop(); // drop last quote
+ }
+ }
+
+ if (res) {
+ res = /charset=(.*)/i.exec(res.pop());
+ }
+ }
+
+ // xml
+ if (!res && str) {
+ res = /<\?xml.+?encoding=(['"])(.+?)\1/i.exec(str);
+ }
+
+ // found charset
+ if (res) {
+ charset = res.pop();
+
+ // prevent decode issues when sites use incorrect encoding
+ // ref: https://hsivonen.fi/encoding-menu/
+ if (charset === 'gb2312' || charset === 'gbk') {
+ charset = 'gb18030';
+ }
+ }
+
+ // turn raw buffers into a single utf-8 buffer
+ return convert(buffer, 'UTF-8', charset).toString();
+}
+
+/**
+ * Detect a URLSearchParams object
+ * ref: https://github.com/bitinn/node-fetch/issues/296#issuecomment-307598143
+ *
+ * @param Object obj Object to detect by type or brand
+ * @return String
+ */
+function isURLSearchParams(obj) {
+ // Duck-typing as a necessary condition.
+ if (typeof obj !== 'object' || typeof obj.append !== 'function' || typeof obj.delete !== 'function' || typeof obj.get !== 'function' || typeof obj.getAll !== 'function' || typeof obj.has !== 'function' || typeof obj.set !== 'function') {
+ return false;
+ }
+
+ // Brand-checking and more duck-typing as optional condition.
+ return obj.constructor.name === 'URLSearchParams' || Object.prototype.toString.call(obj) === '[object URLSearchParams]' || typeof obj.sort === 'function';
+}
+
+/**
+ * Check if `obj` is a W3C `Blob` object (which `File` inherits from)
+ * @param {*} obj
+ * @return {boolean}
+ */
+function isBlob(obj) {
+ return typeof obj === 'object' && typeof obj.arrayBuffer === 'function' && typeof obj.type === 'string' && typeof obj.stream === 'function' && typeof obj.constructor === 'function' && typeof obj.constructor.name === 'string' && /^(Blob|File)$/.test(obj.constructor.name) && /^(Blob|File)$/.test(obj[Symbol.toStringTag]);
+}
+
+/**
+ * Clone body given Res/Req instance
+ *
+ * @param Mixed instance Response or Request instance
+ * @return Mixed
+ */
+function clone(instance) {
+ let p1, p2;
+ let body = instance.body;
+
+ // don't allow cloning a used body
+ if (instance.bodyUsed) {
+ throw new Error('cannot clone body after it is used');
+ }
+
+ // check that body is a stream and not form-data object
+ // note: we can't clone the form-data object without having it as a dependency
+ if (body instanceof Stream && typeof body.getBoundary !== 'function') {
+ // tee instance body
+ p1 = new PassThrough();
+ p2 = new PassThrough();
+ body.pipe(p1);
+ body.pipe(p2);
+ // set instance body to teed body and return the other teed body
+ instance[INTERNALS].body = p1;
+ body = p2;
+ }
+
+ return body;
+}
+
+/**
+ * Performs the operation "extract a `Content-Type` value from |object|" as
+ * specified in the specification:
+ * https://fetch.spec.whatwg.org/#concept-bodyinit-extract
+ *
+ * This function assumes that instance.body is present.
+ *
+ * @param Mixed instance Any options.body input
+ */
+function extractContentType(body) {
+ if (body === null) {
+ // body is null
+ return null;
+ } else if (typeof body === 'string') {
+ // body is string
+ return 'text/plain;charset=UTF-8';
+ } else if (isURLSearchParams(body)) {
+ // body is a URLSearchParams
+ return 'application/x-www-form-urlencoded;charset=UTF-8';
+ } else if (isBlob(body)) {
+ // body is blob
+ return body.type || null;
+ } else if (Buffer.isBuffer(body)) {
+ // body is buffer
+ return null;
+ } else if (Object.prototype.toString.call(body) === '[object ArrayBuffer]') {
+ // body is ArrayBuffer
+ return null;
+ } else if (ArrayBuffer.isView(body)) {
+ // body is ArrayBufferView
+ return null;
+ } else if (typeof body.getBoundary === 'function') {
+ // detect form data input from form-data module
+ return `multipart/form-data;boundary=${body.getBoundary()}`;
+ } else if (body instanceof Stream) {
+ // body is stream
+ // can't really do much about this
+ return null;
+ } else {
+ // Body constructor defaults other things to string
+ return 'text/plain;charset=UTF-8';
+ }
+}
+
+/**
+ * The Fetch Standard treats this as if "total bytes" is a property on the body.
+ * For us, we have to explicitly get it with a function.
+ *
+ * ref: https://fetch.spec.whatwg.org/#concept-body-total-bytes
+ *
+ * @param Body instance Instance of Body
+ * @return Number? Number of bytes, or null if not possible
+ */
+function getTotalBytes(instance) {
+ const body = instance.body;
+
+
+ if (body === null) {
+ // body is null
+ return 0;
+ } else if (isBlob(body)) {
+ return body.size;
+ } else if (Buffer.isBuffer(body)) {
+ // body is buffer
+ return body.length;
+ } else if (body && typeof body.getLengthSync === 'function') {
+ // detect form data input from form-data module
+ if (body._lengthRetrievers && body._lengthRetrievers.length == 0 || // 1.x
+ body.hasKnownLength && body.hasKnownLength()) {
+ // 2.x
+ return body.getLengthSync();
+ }
+ return null;
+ } else {
+ // body is stream
+ return null;
+ }
+}
+
+/**
+ * Write a Body to a Node.js WritableStream (e.g. http.Request) object.
+ *
+ * @param Body instance Instance of Body
+ * @return Void
+ */
+function writeToStream(dest, instance) {
+ const body = instance.body;
+
+
+ if (body === null) {
+ // body is null
+ dest.end();
+ } else if (isBlob(body)) {
+ body.stream().pipe(dest);
+ } else if (Buffer.isBuffer(body)) {
+ // body is buffer
+ dest.write(body);
+ dest.end();
+ } else {
+ // body is stream
+ body.pipe(dest);
+ }
+}
+
+// expose Promise
+Body.Promise = global.Promise;
+
+/**
+ * headers.js
+ *
+ * Headers class offers convenient helpers
+ */
+
+const invalidTokenRegex = /[^\^_`a-zA-Z\-0-9!#$%&'*+.|~]/;
+const invalidHeaderCharRegex = /[^\t\x20-\x7e\x80-\xff]/;
+
+function validateName(name) {
+ name = `${name}`;
+ if (invalidTokenRegex.test(name) || name === '') {
+ throw new TypeError(`${name} is not a legal HTTP header name`);
+ }
+}
+
+function validateValue(value) {
+ value = `${value}`;
+ if (invalidHeaderCharRegex.test(value)) {
+ throw new TypeError(`${value} is not a legal HTTP header value`);
+ }
+}
+
+/**
+ * Find the key in the map object given a header name.
+ *
+ * Returns undefined if not found.
+ *
+ * @param String name Header name
+ * @return String|Undefined
+ */
+function find(map, name) {
+ name = name.toLowerCase();
+ for (const key in map) {
+ if (key.toLowerCase() === name) {
+ return key;
+ }
+ }
+ return undefined;
+}
+
+const MAP = Symbol('map');
+class Headers {
+ /**
+ * Headers class
+ *
+ * @param Object headers Response headers
+ * @return Void
+ */
+ constructor() {
+ let init = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined;
+
+ this[MAP] = Object.create(null);
+
+ if (init instanceof Headers) {
+ const rawHeaders = init.raw();
+ const headerNames = Object.keys(rawHeaders);
+
+ for (const headerName of headerNames) {
+ for (const value of rawHeaders[headerName]) {
+ this.append(headerName, value);
+ }
+ }
+
+ return;
+ }
+
+ // We don't worry about converting prop to ByteString here as append()
+ // will handle it.
+ if (init == null) ; else if (typeof init === 'object') {
+ const method = init[Symbol.iterator];
+ if (method != null) {
+ if (typeof method !== 'function') {
+ throw new TypeError('Header pairs must be iterable');
+ }
+
+ // sequence<sequence<ByteString>>
+ // Note: per spec we have to first exhaust the lists then process them
+ const pairs = [];
+ for (const pair of init) {
+ if (typeof pair !== 'object' || typeof pair[Symbol.iterator] !== 'function') {
+ throw new TypeError('Each header pair must be iterable');
+ }
+ pairs.push(Array.from(pair));
+ }
+
+ for (const pair of pairs) {
+ if (pair.length !== 2) {
+ throw new TypeError('Each header pair must be a name/value tuple');
+ }
+ this.append(pair[0], pair[1]);
+ }
+ } else {
+ // record<ByteString, ByteString>
+ for (const key of Object.keys(init)) {
+ const value = init[key];
+ this.append(key, value);
+ }
+ }
+ } else {
+ throw new TypeError('Provided initializer must be an object');
+ }
+ }
+
+ /**
+ * Return combined header value given name
+ *
+ * @param String name Header name
+ * @return Mixed
+ */
+ get(name) {
+ name = `${name}`;
+ validateName(name);
+ const key = find(this[MAP], name);
+ if (key === undefined) {
+ return null;
+ }
+
+ return this[MAP][key].join(', ');
+ }
+
+ /**
+ * Iterate over all headers
+ *
+ * @param Function callback Executed for each item with parameters (value, name, thisArg)
+ * @param Boolean thisArg `this` context for callback function
+ * @return Void
+ */
+ forEach(callback) {
+ let thisArg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined;
+
+ let pairs = getHeaders(this);
+ let i = 0;
+ while (i < pairs.length) {
+ var _pairs$i = pairs[i];
+ const name = _pairs$i[0],
+ value = _pairs$i[1];
+
+ callback.call(thisArg, value, name, this);
+ pairs = getHeaders(this);
+ i++;
+ }
+ }
+
+ /**
+ * Overwrite header values given name
+ *
+ * @param String name Header name
+ * @param String value Header value
+ * @return Void
+ */
+ set(name, value) {
+ name = `${name}`;
+ value = `${value}`;
+ validateName(name);
+ validateValue(value);
+ const key = find(this[MAP], name);
+ this[MAP][key !== undefined ? key : name] = [value];
+ }
+
+ /**
+ * Append a value onto existing header
+ *
+ * @param String name Header name
+ * @param String value Header value
+ * @return Void
+ */
+ append(name, value) {
+ name = `${name}`;
+ value = `${value}`;
+ validateName(name);
+ validateValue(value);
+ const key = find(this[MAP], name);
+ if (key !== undefined) {
+ this[MAP][key].push(value);
+ } else {
+ this[MAP][name] = [value];
+ }
+ }
+
+ /**
+ * Check for header name existence
+ *
+ * @param String name Header name
+ * @return Boolean
+ */
+ has(name) {
+ name = `${name}`;
+ validateName(name);
+ return find(this[MAP], name) !== undefined;
+ }
+
+ /**
+ * Delete all header values given name
+ *
+ * @param String name Header name
+ * @return Void
+ */
+ delete(name) {
+ name = `${name}`;
+ validateName(name);
+ const key = find(this[MAP], name);
+ if (key !== undefined) {
+ delete this[MAP][key];
+ }
+ }
+
+ /**
+ * Return raw headers (non-spec api)
+ *
+ * @return Object
+ */
+ raw() {
+ return this[MAP];
+ }
+
+ /**
+ * Get an iterator on keys.
+ *
+ * @return Iterator
+ */
+ keys() {
+ return createHeadersIterator(this, 'key');
+ }
+
+ /**
+ * Get an iterator on values.
+ *
+ * @return Iterator
+ */
+ values() {
+ return createHeadersIterator(this, 'value');
+ }
+
+ /**
+ * Get an iterator on entries.
+ *
+ * This is the default iterator of the Headers object.
+ *
+ * @return Iterator
+ */
+ [Symbol.iterator]() {
+ return createHeadersIterator(this, 'key+value');
+ }
+}
+Headers.prototype.entries = Headers.prototype[Symbol.iterator];
+
+Object.defineProperty(Headers.prototype, Symbol.toStringTag, {
+ value: 'Headers',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+Object.defineProperties(Headers.prototype, {
+ get: { enumerable: true },
+ forEach: { enumerable: true },
+ set: { enumerable: true },
+ append: { enumerable: true },
+ has: { enumerable: true },
+ delete: { enumerable: true },
+ keys: { enumerable: true },
+ values: { enumerable: true },
+ entries: { enumerable: true }
+});
+
+function getHeaders(headers) {
+ let kind = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'key+value';
+
+ const keys = Object.keys(headers[MAP]).sort();
+ return keys.map(kind === 'key' ? function (k) {
+ return k.toLowerCase();
+ } : kind === 'value' ? function (k) {
+ return headers[MAP][k].join(', ');
+ } : function (k) {
+ return [k.toLowerCase(), headers[MAP][k].join(', ')];
+ });
+}
+
+const INTERNAL = Symbol('internal');
+
+function createHeadersIterator(target, kind) {
+ const iterator = Object.create(HeadersIteratorPrototype);
+ iterator[INTERNAL] = {
+ target,
+ kind,
+ index: 0
+ };
+ return iterator;
+}
+
+const HeadersIteratorPrototype = Object.setPrototypeOf({
+ next() {
+ // istanbul ignore if
+ if (!this || Object.getPrototypeOf(this) !== HeadersIteratorPrototype) {
+ throw new TypeError('Value of `this` is not a HeadersIterator');
+ }
+
+ var _INTERNAL = this[INTERNAL];
+ const target = _INTERNAL.target,
+ kind = _INTERNAL.kind,
+ index = _INTERNAL.index;
+
+ const values = getHeaders(target, kind);
+ const len = values.length;
+ if (index >= len) {
+ return {
+ value: undefined,
+ done: true
+ };
+ }
+
+ this[INTERNAL].index = index + 1;
+
+ return {
+ value: values[index],
+ done: false
+ };
+ }
+}, Object.getPrototypeOf(Object.getPrototypeOf([][Symbol.iterator]())));
+
+Object.defineProperty(HeadersIteratorPrototype, Symbol.toStringTag, {
+ value: 'HeadersIterator',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+/**
+ * Export the Headers object in a form that Node.js can consume.
+ *
+ * @param Headers headers
+ * @return Object
+ */
+function exportNodeCompatibleHeaders(headers) {
+ const obj = Object.assign({ __proto__: null }, headers[MAP]);
+
+ // http.request() only supports string as Host header. This hack makes
+ // specifying custom Host header possible.
+ const hostHeaderKey = find(headers[MAP], 'Host');
+ if (hostHeaderKey !== undefined) {
+ obj[hostHeaderKey] = obj[hostHeaderKey][0];
+ }
+
+ return obj;
+}
+
+/**
+ * Create a Headers object from an object of headers, ignoring those that do
+ * not conform to HTTP grammar productions.
+ *
+ * @param Object obj Object of headers
+ * @return Headers
+ */
+function createHeadersLenient(obj) {
+ const headers = new Headers();
+ for (const name of Object.keys(obj)) {
+ if (invalidTokenRegex.test(name)) {
+ continue;
+ }
+ if (Array.isArray(obj[name])) {
+ for (const val of obj[name]) {
+ if (invalidHeaderCharRegex.test(val)) {
+ continue;
+ }
+ if (headers[MAP][name] === undefined) {
+ headers[MAP][name] = [val];
+ } else {
+ headers[MAP][name].push(val);
+ }
+ }
+ } else if (!invalidHeaderCharRegex.test(obj[name])) {
+ headers[MAP][name] = [obj[name]];
+ }
+ }
+ return headers;
+}
+
+const INTERNALS$1 = Symbol('Response internals');
+
+// fix an issue where "STATUS_CODES" aren't a named export for node <10
+const STATUS_CODES = http.STATUS_CODES;
+
+/**
+ * Response class
+ *
+ * @param Stream body Readable stream
+ * @param Object opts Response options
+ * @return Void
+ */
+class Response {
+ constructor() {
+ let body = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+ let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ Body.call(this, body, opts);
+
+ const status = opts.status || 200;
+ const headers = new Headers(opts.headers);
+
+ if (body != null && !headers.has('Content-Type')) {
+ const contentType = extractContentType(body);
+ if (contentType) {
+ headers.append('Content-Type', contentType);
+ }
+ }
+
+ this[INTERNALS$1] = {
+ url: opts.url,
+ status,
+ statusText: opts.statusText || STATUS_CODES[status],
+ headers,
+ counter: opts.counter
+ };
+ }
+
+ get url() {
+ return this[INTERNALS$1].url || '';
+ }
+
+ get status() {
+ return this[INTERNALS$1].status;
+ }
+
+ /**
+ * Convenience property representing if the request ended normally
+ */
+ get ok() {
+ return this[INTERNALS$1].status >= 200 && this[INTERNALS$1].status < 300;
+ }
+
+ get redirected() {
+ return this[INTERNALS$1].counter > 0;
+ }
+
+ get statusText() {
+ return this[INTERNALS$1].statusText;
+ }
+
+ get headers() {
+ return this[INTERNALS$1].headers;
+ }
+
+ /**
+ * Clone this response
+ *
+ * @return Response
+ */
+ clone() {
+ return new Response(clone(this), {
+ url: this.url,
+ status: this.status,
+ statusText: this.statusText,
+ headers: this.headers,
+ ok: this.ok,
+ redirected: this.redirected
+ });
+ }
+}
+
+Body.mixIn(Response.prototype);
+
+Object.defineProperties(Response.prototype, {
+ url: { enumerable: true },
+ status: { enumerable: true },
+ ok: { enumerable: true },
+ redirected: { enumerable: true },
+ statusText: { enumerable: true },
+ headers: { enumerable: true },
+ clone: { enumerable: true }
+});
+
+Object.defineProperty(Response.prototype, Symbol.toStringTag, {
+ value: 'Response',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+const INTERNALS$2 = Symbol('Request internals');
+const URL = Url.URL || whatwgUrl.URL;
+
+// fix an issue where "format", "parse" aren't a named export for node <10
+const parse_url = Url.parse;
+const format_url = Url.format;
+
+/**
+ * Wrapper around `new URL` to handle arbitrary URLs
+ *
+ * @param {string} urlStr
+ * @return {void}
+ */
+function parseURL(urlStr) {
+ /*
+ Check whether the URL is absolute or not
+ Scheme: https://tools.ietf.org/html/rfc3986#section-3.1
+ Absolute URL: https://tools.ietf.org/html/rfc3986#section-4.3
+ */
+ if (/^[a-zA-Z][a-zA-Z\d+\-.]*:/.exec(urlStr)) {
+ urlStr = new URL(urlStr).toString();
+ }
+
+ // Fallback to old implementation for arbitrary URLs
+ return parse_url(urlStr);
+}
+
+const streamDestructionSupported = 'destroy' in Stream.Readable.prototype;
+
+/**
+ * Check if a value is an instance of Request.
+ *
+ * @param Mixed input
+ * @return Boolean
+ */
+function isRequest(input) {
+ return typeof input === 'object' && typeof input[INTERNALS$2] === 'object';
+}
+
+function isAbortSignal(signal) {
+ const proto = signal && typeof signal === 'object' && Object.getPrototypeOf(signal);
+ return !!(proto && proto.constructor.name === 'AbortSignal');
+}
+
+/**
+ * Request class
+ *
+ * @param Mixed input Url or Request instance
+ * @param Object init Custom options
+ * @return Void
+ */
+class Request {
+ constructor(input) {
+ let init = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+
+ let parsedURL;
+
+ // normalize input
+ if (!isRequest(input)) {
+ if (input && input.href) {
+ // in order to support Node.js' Url objects; though WHATWG's URL objects
+ // will fall into this branch also (since their `toString()` will return
+ // `href` property anyway)
+ parsedURL = parseURL(input.href);
+ } else {
+ // coerce input to a string before attempting to parse
+ parsedURL = parseURL(`${input}`);
+ }
+ input = {};
+ } else {
+ parsedURL = parseURL(input.url);
+ }
+
+ let method = init.method || input.method || 'GET';
+ method = method.toUpperCase();
+
+ if ((init.body != null || isRequest(input) && input.body !== null) && (method === 'GET' || method === 'HEAD')) {
+ throw new TypeError('Request with GET/HEAD method cannot have body');
+ }
+
+ let inputBody = init.body != null ? init.body : isRequest(input) && input.body !== null ? clone(input) : null;
+
+ Body.call(this, inputBody, {
+ timeout: init.timeout || input.timeout || 0,
+ size: init.size || input.size || 0
+ });
+
+ const headers = new Headers(init.headers || input.headers || {});
+
+ if (inputBody != null && !headers.has('Content-Type')) {
+ const contentType = extractContentType(inputBody);
+ if (contentType) {
+ headers.append('Content-Type', contentType);
+ }
+ }
+
+ let signal = isRequest(input) ? input.signal : null;
+ if ('signal' in init) signal = init.signal;
+
+ if (signal != null && !isAbortSignal(signal)) {
+ throw new TypeError('Expected signal to be an instanceof AbortSignal');
+ }
+
+ this[INTERNALS$2] = {
+ method,
+ redirect: init.redirect || input.redirect || 'follow',
+ headers,
+ parsedURL,
+ signal
+ };
+
+ // node-fetch-only options
+ this.follow = init.follow !== undefined ? init.follow : input.follow !== undefined ? input.follow : 20;
+ this.compress = init.compress !== undefined ? init.compress : input.compress !== undefined ? input.compress : true;
+ this.counter = init.counter || input.counter || 0;
+ this.agent = init.agent || input.agent;
+ }
+
+ get method() {
+ return this[INTERNALS$2].method;
+ }
+
+ get url() {
+ return format_url(this[INTERNALS$2].parsedURL);
+ }
+
+ get headers() {
+ return this[INTERNALS$2].headers;
+ }
+
+ get redirect() {
+ return this[INTERNALS$2].redirect;
+ }
+
+ get signal() {
+ return this[INTERNALS$2].signal;
+ }
+
+ /**
+ * Clone this request
+ *
+ * @return Request
+ */
+ clone() {
+ return new Request(this);
+ }
+}
+
+Body.mixIn(Request.prototype);
+
+Object.defineProperty(Request.prototype, Symbol.toStringTag, {
+ value: 'Request',
+ writable: false,
+ enumerable: false,
+ configurable: true
+});
+
+Object.defineProperties(Request.prototype, {
+ method: { enumerable: true },
+ url: { enumerable: true },
+ headers: { enumerable: true },
+ redirect: { enumerable: true },
+ clone: { enumerable: true },
+ signal: { enumerable: true }
+});
+
+/**
+ * Convert a Request to Node.js http request options.
+ *
+ * @param Request A Request instance
+ * @return Object The options object to be passed to http.request
+ */
+function getNodeRequestOptions(request) {
+ const parsedURL = request[INTERNALS$2].parsedURL;
+ const headers = new Headers(request[INTERNALS$2].headers);
+
+ // fetch step 1.3
+ if (!headers.has('Accept')) {
+ headers.set('Accept', '*/*');
+ }
+
+ // Basic fetch
+ if (!parsedURL.protocol || !parsedURL.hostname) {
+ throw new TypeError('Only absolute URLs are supported');
+ }
+
+ if (!/^https?:$/.test(parsedURL.protocol)) {
+ throw new TypeError('Only HTTP(S) protocols are supported');
+ }
+
+ if (request.signal && request.body instanceof Stream.Readable && !streamDestructionSupported) {
+ throw new Error('Cancellation of streamed requests with AbortSignal is not supported in node < 8');
+ }
+
+ // HTTP-network-or-cache fetch steps 2.4-2.7
+ let contentLengthValue = null;
+ if (request.body == null && /^(POST|PUT)$/i.test(request.method)) {
+ contentLengthValue = '0';
+ }
+ if (request.body != null) {
+ const totalBytes = getTotalBytes(request);
+ if (typeof totalBytes === 'number') {
+ contentLengthValue = String(totalBytes);
+ }
+ }
+ if (contentLengthValue) {
+ headers.set('Content-Length', contentLengthValue);
+ }
+
+ // HTTP-network-or-cache fetch step 2.11
+ if (!headers.has('User-Agent')) {
+ headers.set('User-Agent', 'node-fetch/1.0 (+https://github.com/bitinn/node-fetch)');
+ }
+
+ // HTTP-network-or-cache fetch step 2.15
+ if (request.compress && !headers.has('Accept-Encoding')) {
+ headers.set('Accept-Encoding', 'gzip,deflate');
+ }
+
+ let agent = request.agent;
+ if (typeof agent === 'function') {
+ agent = agent(parsedURL);
+ }
+
+ if (!headers.has('Connection') && !agent) {
+ headers.set('Connection', 'close');
+ }
+
+ // HTTP-network fetch step 4.2
+ // chunked encoding is handled by Node.js
+
+ return Object.assign({}, parsedURL, {
+ method: request.method,
+ headers: exportNodeCompatibleHeaders(headers),
+ agent
+ });
+}
+
+/**
+ * abort-error.js
+ *
+ * AbortError interface for cancelled requests
+ */
+
+/**
+ * Create AbortError instance
+ *
+ * @param String message Error message for human
+ * @return AbortError
+ */
+function AbortError(message) {
+ Error.call(this, message);
+
+ this.type = 'aborted';
+ this.message = message;
+
+ // hide custom error implementation details from end-users
+ Error.captureStackTrace(this, this.constructor);
+}
+
+AbortError.prototype = Object.create(Error.prototype);
+AbortError.prototype.constructor = AbortError;
+AbortError.prototype.name = 'AbortError';
+
+// fix an issue where "PassThrough", "resolve" aren't a named export for node <10
+const PassThrough$1 = Stream.PassThrough;
+const resolve_url = Url.resolve;
+
+/**
+ * Fetch function
+ *
+ * @param Mixed url Absolute url or Request instance
+ * @param Object opts Fetch options
+ * @return Promise
+ */
+function fetch(url, opts) {
+
+ // allow custom promise
+ if (!fetch.Promise) {
+ throw new Error('native promise missing, set fetch.Promise to your favorite alternative');
+ }
+
+ Body.Promise = fetch.Promise;
+
+ // wrap http.request into fetch
+ return new fetch.Promise(function (resolve, reject) {
+ // build request object
+ const request = new Request(url, opts);
+ const options = getNodeRequestOptions(request);
+
+ const send = (options.protocol === 'https:' ? https : http).request;
+ const signal = request.signal;
+
+ let response = null;
+
+ const abort = function abort() {
+ let error = new AbortError('The user aborted a request.');
+ reject(error);
+ if (request.body && request.body instanceof Stream.Readable) {
+ request.body.destroy(error);
+ }
+ if (!response || !response.body) return;
+ response.body.emit('error', error);
+ };
+
+ if (signal && signal.aborted) {
+ abort();
+ return;
+ }
+
+ const abortAndFinalize = function abortAndFinalize() {
+ abort();
+ finalize();
+ };
+
+ // send request
+ const req = send(options);
+ let reqTimeout;
+
+ if (signal) {
+ signal.addEventListener('abort', abortAndFinalize);
+ }
+
+ function finalize() {
+ req.abort();
+ if (signal) signal.removeEventListener('abort', abortAndFinalize);
+ clearTimeout(reqTimeout);
+ }
+
+ if (request.timeout) {
+ req.once('socket', function (socket) {
+ reqTimeout = setTimeout(function () {
+ reject(new FetchError(`network timeout at: ${request.url}`, 'request-timeout'));
+ finalize();
+ }, request.timeout);
+ });
+ }
+
+ req.on('error', function (err) {
+ reject(new FetchError(`request to ${request.url} failed, reason: ${err.message}`, 'system', err));
+ finalize();
+ });
+
+ req.on('response', function (res) {
+ clearTimeout(reqTimeout);
+
+ const headers = createHeadersLenient(res.headers);
+
+ // HTTP fetch step 5
+ if (fetch.isRedirect(res.statusCode)) {
+ // HTTP fetch step 5.2
+ const location = headers.get('Location');
+
+ // HTTP fetch step 5.3
+ const locationURL = location === null ? null : resolve_url(request.url, location);
+
+ // HTTP fetch step 5.5
+ switch (request.redirect) {
+ case 'error':
+ reject(new FetchError(`uri requested responds with a redirect, redirect mode is set to error: ${request.url}`, 'no-redirect'));
+ finalize();
+ return;
+ case 'manual':
+ // node-fetch-specific step: make manual redirect a bit easier to use by setting the Location header value to the resolved URL.
+ if (locationURL !== null) {
+ // handle corrupted header
+ try {
+ headers.set('Location', locationURL);
+ } catch (err) {
+ // istanbul ignore next: nodejs server prevent invalid response headers, we can't test this through normal request
+ reject(err);
+ }
+ }
+ break;
+ case 'follow':
+ // HTTP-redirect fetch step 2
+ if (locationURL === null) {
+ break;
+ }
+
+ // HTTP-redirect fetch step 5
+ if (request.counter >= request.follow) {
+ reject(new FetchError(`maximum redirect reached at: ${request.url}`, 'max-redirect'));
+ finalize();
+ return;
+ }
+
+ // HTTP-redirect fetch step 6 (counter increment)
+ // Create a new Request object.
+ const requestOpts = {
+ headers: new Headers(request.headers),
+ follow: request.follow,
+ counter: request.counter + 1,
+ agent: request.agent,
+ compress: request.compress,
+ method: request.method,
+ body: request.body,
+ signal: request.signal,
+ timeout: request.timeout,
+ size: request.size
+ };
+
+ // HTTP-redirect fetch step 9
+ if (res.statusCode !== 303 && request.body && getTotalBytes(request) === null) {
+ reject(new FetchError('Cannot follow redirect with body being a readable stream', 'unsupported-redirect'));
+ finalize();
+ return;
+ }
+
+ // HTTP-redirect fetch step 11
+ if (res.statusCode === 303 || (res.statusCode === 301 || res.statusCode === 302) && request.method === 'POST') {
+ requestOpts.method = 'GET';
+ requestOpts.body = undefined;
+ requestOpts.headers.delete('content-length');
+ }
+
+ // HTTP-redirect fetch step 15
+ resolve(fetch(new Request(locationURL, requestOpts)));
+ finalize();
+ return;
+ }
+ }
+
+ // prepare response
+ res.once('end', function () {
+ if (signal) signal.removeEventListener('abort', abortAndFinalize);
+ });
+ let body = res.pipe(new PassThrough$1());
+
+ const response_options = {
+ url: request.url,
+ status: res.statusCode,
+ statusText: res.statusMessage,
+ headers: headers,
+ size: request.size,
+ timeout: request.timeout,
+ counter: request.counter
+ };
+
+ // HTTP-network fetch step 12.1.1.3
+ const codings = headers.get('Content-Encoding');
+
+ // HTTP-network fetch step 12.1.1.4: handle content codings
+
+ // in following scenarios we ignore compression support
+ // 1. compression support is disabled
+ // 2. HEAD request
+ // 3. no Content-Encoding header
+ // 4. no content response (204)
+ // 5. content not modified response (304)
+ if (!request.compress || request.method === 'HEAD' || codings === null || res.statusCode === 204 || res.statusCode === 304) {
+ response = new Response(body, response_options);
+ resolve(response);
+ return;
+ }
+
+ // For Node v6+
+ // Be less strict when decoding compressed responses, since sometimes
+ // servers send slightly invalid responses that are still accepted
+ // by common browsers.
+ // Always using Z_SYNC_FLUSH is what cURL does.
+ const zlibOptions = {
+ flush: zlib.Z_SYNC_FLUSH,
+ finishFlush: zlib.Z_SYNC_FLUSH
+ };
+
+ // for gzip
+ if (codings == 'gzip' || codings == 'x-gzip') {
+ body = body.pipe(zlib.createGunzip(zlibOptions));
+ response = new Response(body, response_options);
+ resolve(response);
+ return;
+ }
+
+ // for deflate
+ if (codings == 'deflate' || codings == 'x-deflate') {
+ // handle the infamous raw deflate response from old servers
+ // a hack for old IIS and Apache servers
+ const raw = res.pipe(new PassThrough$1());
+ raw.once('data', function (chunk) {
+ // see http://stackoverflow.com/questions/37519828
+ if ((chunk[0] & 0x0F) === 0x08) {
+ body = body.pipe(zlib.createInflate());
+ } else {
+ body = body.pipe(zlib.createInflateRaw());
+ }
+ response = new Response(body, response_options);
+ resolve(response);
+ });
+ return;
+ }
+
+ // for br
+ if (codings == 'br' && typeof zlib.createBrotliDecompress === 'function') {
+ body = body.pipe(zlib.createBrotliDecompress());
+ response = new Response(body, response_options);
+ resolve(response);
+ return;
+ }
+
+ // otherwise, use response as-is
+ response = new Response(body, response_options);
+ resolve(response);
+ });
+
+ writeToStream(req, request);
+ });
+}
+/**
+ * Redirect code matching
+ *
+ * @param Number code Status code
+ * @return Boolean
+ */
+fetch.isRedirect = function (code) {
+ return code === 301 || code === 302 || code === 303 || code === 307 || code === 308;
+};
+
+// expose Promise
+fetch.Promise = global.Promise;
+
+export default fetch;
+export { Headers, Request, Response, FetchError };
diff --git a/backend/node_modules/node-fetch/node_modules/tr46/.npmignore b/backend/node_modules/node-fetch/node_modules/tr46/.npmignore
new file mode 100644
index 0000000..96e9161
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/tr46/.npmignore
@@ -0,0 +1,4 @@
+scripts/
+test/
+
+!lib/mapping_table.json
diff --git a/backend/node_modules/node-fetch/node_modules/tr46/index.js b/backend/node_modules/node-fetch/node_modules/tr46/index.js
new file mode 100644
index 0000000..9ce12ca
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/tr46/index.js
@@ -0,0 +1,193 @@
+"use strict";
+
+var punycode = require("punycode");
+var mappingTable = require("./lib/mappingTable.json");
+
+var PROCESSING_OPTIONS = {
+ TRANSITIONAL: 0,
+ NONTRANSITIONAL: 1
+};
+
+function normalize(str) { // fix bug in v8
+ return str.split('\u0000').map(function (s) { return s.normalize('NFC'); }).join('\u0000');
+}
+
+function findStatus(val) {
+ var start = 0;
+ var end = mappingTable.length - 1;
+
+ while (start <= end) {
+ var mid = Math.floor((start + end) / 2);
+
+ var target = mappingTable[mid];
+ if (target[0][0] <= val && target[0][1] >= val) {
+ return target;
+ } else if (target[0][0] > val) {
+ end = mid - 1;
+ } else {
+ start = mid + 1;
+ }
+ }
+
+ return null;
+}
+
+var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
+
+function countSymbols(string) {
+ return string
+ // replace every surrogate pair with a BMP symbol
+ .replace(regexAstralSymbols, '_')
+ // then get the length
+ .length;
+}
+
+function mapChars(domain_name, useSTD3, processing_option) {
+ var hasError = false;
+ var processed = "";
+
+ var len = countSymbols(domain_name);
+ for (var i = 0; i < len; ++i) {
+ var codePoint = domain_name.codePointAt(i);
+ var status = findStatus(codePoint);
+
+ switch (status[1]) {
+ case "disallowed":
+ hasError = true;
+ processed += String.fromCodePoint(codePoint);
+ break;
+ case "ignored":
+ break;
+ case "mapped":
+ processed += String.fromCodePoint.apply(String, status[2]);
+ break;
+ case "deviation":
+ if (processing_option === PROCESSING_OPTIONS.TRANSITIONAL) {
+ processed += String.fromCodePoint.apply(String, status[2]);
+ } else {
+ processed += String.fromCodePoint(codePoint);
+ }
+ break;
+ case "valid":
+ processed += String.fromCodePoint(codePoint);
+ break;
+ case "disallowed_STD3_mapped":
+ if (useSTD3) {
+ hasError = true;
+ processed += String.fromCodePoint(codePoint);
+ } else {
+ processed += String.fromCodePoint.apply(String, status[2]);
+ }
+ break;
+ case "disallowed_STD3_valid":
+ if (useSTD3) {
+ hasError = true;
+ }
+
+ processed += String.fromCodePoint(codePoint);
+ break;
+ }
+ }
+
+ return {
+ string: processed,
+ error: hasError
+ };
+}
+
+var combiningMarksRegex = /[\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08E4-\u0903\u093A-\u093C\u093E-\u094F\u0951-\u0957\u0962\u0963\u0981-\u0983\u09BC\u09BE-\u09C4\u09C7\u09C8\u09CB-\u09CD\u09D7\u09E2\u09E3\u0A01-\u0A03\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81-\u0A83\u0ABC\u0ABE-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AE2\u0AE3\u0B01-\u0B03\u0B3C\u0B3E-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B62\u0B63\u0B82\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD7\u0C00-\u0C03\u0C3E-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81-\u0C83\u0CBC\u0CBE-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CE2\u0CE3\u0D01-\u0D03\u0D3E-\u0D44\u0D46-\u0D48\u0D4A-\u0D4D\u0D57\u0D62\u0D63\u0D82\u0D83\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EB9\u0EBB\u0EBC\u0EC8-\u0ECD\u0F18\u0F19\u0F35\u0F37\u0F39\u0F3E\u0F3F\u0F71-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102B-\u103E\u1056-\u1059\u105E-\u1060\u1062-\u1064\u1067-\u106D\u1071-\u1074\u1082-\u108D\u108F\u109A-\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4-\u17D3\u17DD\u180B-\u180D\u18A9\u1920-\u192B\u1930-\u193B\u19B0-\u19C0\u19C8\u19C9\u1A17-\u1A1B\u1A55-\u1A5E\u1A60-\u1A7C\u1A7F\u1AB0-\u1ABE\u1B00-\u1B04\u1B34-\u1B44\u1B6B-\u1B73\u1B80-\u1B82\u1BA1-\u1BAD\u1BE6-\u1BF3\u1C24-\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE8\u1CED\u1CF2-\u1CF4\u1CF8\u1CF9\u1DC0-\u1DF5\u1DFC-\u1DFF\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA823-\uA827\uA880\uA881\uA8B4-\uA8C4\uA8E0-\uA8F1\uA926-\uA92D\uA947-\uA953\uA980-\uA983\uA9B3-\uA9C0\uA9E5\uAA29-\uAA36\uAA43\uAA4C\uAA4D\uAA7B-\uAA7D\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEB-\uAAEF\uAAF5\uAAF6\uABE3-\uABEA\uABEC\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2D]|\uD800[\uDDFD\uDEE0\uDF76-\uDF7A]|\uD802[\uDE01-\uDE03\uDE05\uDE06\uDE0C-\uDE0F\uDE38-\uDE3A\uDE3F\uDEE5\uDEE6]|\uD804[\uDC00-\uDC02\uDC38-\uDC46\uDC7F-\uDC82\uDCB0-\uDCBA\uDD00-\uDD02\uDD27-\uDD34\uDD73\uDD80-\uDD82\uDDB3-\uDDC0\uDE2C-\uDE37\uDEDF-\uDEEA\uDF01-\uDF03\uDF3C\uDF3E-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF57\uDF62\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDCB0-\uDCC3\uDDAF-\uDDB5\uDDB8-\uDDC0\uDE30-\uDE40\uDEAB-\uDEB7]|\uD81A[\uDEF0-\uDEF4\uDF30-\uDF36]|\uD81B[\uDF51-\uDF7E\uDF8F-\uDF92]|\uD82F[\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD83A[\uDCD0-\uDCD6]|\uDB40[\uDD00-\uDDEF]/;
+
+function validateLabel(label, processing_option) {
+ if (label.substr(0, 4) === "xn--") {
+ label = punycode.toUnicode(label);
+ processing_option = PROCESSING_OPTIONS.NONTRANSITIONAL;
+ }
+
+ var error = false;
+
+ if (normalize(label) !== label ||
+ (label[3] === "-" && label[4] === "-") ||
+ label[0] === "-" || label[label.length - 1] === "-" ||
+ label.indexOf(".") !== -1 ||
+ label.search(combiningMarksRegex) === 0) {
+ error = true;
+ }
+
+ var len = countSymbols(label);
+ for (var i = 0; i < len; ++i) {
+ var status = findStatus(label.codePointAt(i));
+ if ((processing === PROCESSING_OPTIONS.TRANSITIONAL && status[1] !== "valid") ||
+ (processing === PROCESSING_OPTIONS.NONTRANSITIONAL &&
+ status[1] !== "valid" && status[1] !== "deviation")) {
+ error = true;
+ break;
+ }
+ }
+
+ return {
+ label: label,
+ error: error
+ };
+}
+
+function processing(domain_name, useSTD3, processing_option) {
+ var result = mapChars(domain_name, useSTD3, processing_option);
+ result.string = normalize(result.string);
+
+ var labels = result.string.split(".");
+ for (var i = 0; i < labels.length; ++i) {
+ try {
+ var validation = validateLabel(labels[i]);
+ labels[i] = validation.label;
+ result.error = result.error || validation.error;
+ } catch(e) {
+ result.error = true;
+ }
+ }
+
+ return {
+ string: labels.join("."),
+ error: result.error
+ };
+}
+
+module.exports.toASCII = function(domain_name, useSTD3, processing_option, verifyDnsLength) {
+ var result = processing(domain_name, useSTD3, processing_option);
+ var labels = result.string.split(".");
+ labels = labels.map(function(l) {
+ try {
+ return punycode.toASCII(l);
+ } catch(e) {
+ result.error = true;
+ return l;
+ }
+ });
+
+ if (verifyDnsLength) {
+ var total = labels.slice(0, labels.length - 1).join(".").length;
+ if (total.length > 253 || total.length === 0) {
+ result.error = true;
+ }
+
+ for (var i=0; i < labels.length; ++i) {
+ if (labels.length > 63 || labels.length === 0) {
+ result.error = true;
+ break;
+ }
+ }
+ }
+
+ if (result.error) return null;
+ return labels.join(".");
+};
+
+module.exports.toUnicode = function(domain_name, useSTD3) {
+ var result = processing(domain_name, useSTD3, PROCESSING_OPTIONS.NONTRANSITIONAL);
+
+ return {
+ domain: result.string,
+ error: result.error
+ };
+};
+
+module.exports.PROCESSING_OPTIONS = PROCESSING_OPTIONS;
diff --git a/backend/node_modules/node-fetch/node_modules/tr46/lib/.gitkeep b/backend/node_modules/node-fetch/node_modules/tr46/lib/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/backend/node_modules/node-fetch/node_modules/tr46/lib/mappingTable.json b/backend/node_modules/node-fetch/node_modules/tr46/lib/mappingTable.json
new file mode 100644
index 0000000..89cf19a
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/tr46/lib/mappingTable.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/backend/node_modules/node-fetch/node_modules/tr46/package.json b/backend/node_modules/node-fetch/node_modules/tr46/package.json
new file mode 100644
index 0000000..44b4f7b
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/tr46/package.json
@@ -0,0 +1,59 @@
+{
+ "_from": "tr46@~0.0.3",
+ "_id": "tr46@0.0.3",
+ "_inBundle": false,
+ "_integrity": "sha1-gYT9NH2snNwYWZLzpmIuFLnZq2o=",
+ "_location": "/node-fetch/tr46",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "tr46@~0.0.3",
+ "name": "tr46",
+ "escapedName": "tr46",
+ "rawSpec": "~0.0.3",
+ "saveSpec": null,
+ "fetchSpec": "~0.0.3"
+ },
+ "_requiredBy": [
+ "/node-fetch/whatwg-url"
+ ],
+ "_resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+ "_shasum": "8184fd347dac9cdc185992f3a6622e14b9d9ab6a",
+ "_spec": "tr46@~0.0.3",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/node-fetch/node_modules/whatwg-url",
+ "author": {
+ "name": "Sebastian Mayr",
+ "email": "npm@smayr.name"
+ },
+ "bugs": {
+ "url": "https://github.com/Sebmaster/tr46.js/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "An implementation of the Unicode TR46 spec",
+ "devDependencies": {
+ "mocha": "^2.2.5",
+ "request": "^2.57.0"
+ },
+ "homepage": "https://github.com/Sebmaster/tr46.js#readme",
+ "keywords": [
+ "unicode",
+ "tr46",
+ "url",
+ "whatwg"
+ ],
+ "license": "MIT",
+ "main": "index.js",
+ "name": "tr46",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/Sebmaster/tr46.js.git"
+ },
+ "scripts": {
+ "prepublish": "node scripts/generateMappingTable.js",
+ "pretest": "node scripts/getLatestUnicodeTests.js",
+ "test": "mocha"
+ },
+ "version": "0.0.3"
+}
diff --git a/backend/node_modules/node-fetch/node_modules/webidl-conversions/LICENSE.md b/backend/node_modules/node-fetch/node_modules/webidl-conversions/LICENSE.md
new file mode 100644
index 0000000..d4a994f
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/webidl-conversions/LICENSE.md
@@ -0,0 +1,12 @@
+# The BSD 2-Clause License
+
+Copyright (c) 2014, Domenic Denicola
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/backend/node_modules/node-fetch/node_modules/webidl-conversions/README.md b/backend/node_modules/node-fetch/node_modules/webidl-conversions/README.md
new file mode 100644
index 0000000..3657890
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/webidl-conversions/README.md
@@ -0,0 +1,53 @@
+# WebIDL Type Conversions on JavaScript Values
+
+This package implements, in JavaScript, the algorithms to convert a given JavaScript value according to a given [WebIDL](http://heycam.github.io/webidl/) [type](http://heycam.github.io/webidl/#idl-types).
+
+The goal is that you should be able to write code like
+
+```js
+const conversions = require("webidl-conversions");
+
+function doStuff(x, y) {
+ x = conversions["boolean"](x);
+ y = conversions["unsigned long"](y);
+ // actual algorithm code here
+}
+```
+
+and your function `doStuff` will behave the same as a WebIDL operation declared as
+
+```webidl
+void doStuff(boolean x, unsigned long y);
+```
+
+## API
+
+This package's main module's default export is an object with a variety of methods, each corresponding to a different WebIDL type. Each method, when invoked on a JavaScript value, will give back the new JavaScript value that results after passing through the WebIDL conversion rules. (See below for more details on what that means.) Alternately, the method could throw an error, if the WebIDL algorithm is specified to do so: for example `conversions["float"](NaN)` [will throw a `TypeError`](http://heycam.github.io/webidl/#es-float).
+
+## Status
+
+All of the numeric types are implemented (float being implemented as double) and some others are as well - check the source for all of them. This list will grow over time in service of the [HTML as Custom Elements](https://github.com/dglazkov/html-as-custom-elements) project, but in the meantime, pull requests welcome!
+
+I'm not sure yet what the strategy will be for modifiers, e.g. [`[Clamp]`](http://heycam.github.io/webidl/#Clamp). Maybe something like `conversions["unsigned long"](x, { clamp: true })`? We'll see.
+
+We might also want to extend the API to give better error messages, e.g. "Argument 1 of HTMLMediaElement.fastSeek is not a finite floating-point value" instead of "Argument is not a finite floating-point value." This would require passing in more information to the conversion functions than we currently do.
+
+## Background
+
+What's actually going on here, conceptually, is pretty weird. Let's try to explain.
+
+WebIDL, as part of its madness-inducing design, has its own type system. When people write algorithms in web platform specs, they usually operate on WebIDL values, i.e. instances of WebIDL types. For example, if they were specifying the algorithm for our `doStuff` operation above, they would treat `x` as a WebIDL value of [WebIDL type `boolean`](http://heycam.github.io/webidl/#idl-boolean). Crucially, they would _not_ treat `x` as a JavaScript variable whose value is either the JavaScript `true` or `false`. They're instead working in a different type system altogether, with its own rules.
+
+Separately from its type system, WebIDL defines a ["binding"](http://heycam.github.io/webidl/#ecmascript-binding) of the type system into JavaScript. This contains rules like: when you pass a JavaScript value to the JavaScript method that manifests a given WebIDL operation, how does that get converted into a WebIDL value? For example, a JavaScript `true` passed in the position of a WebIDL `boolean` argument becomes a WebIDL `true`. But, a JavaScript `true` passed in the position of a [WebIDL `unsigned long`](http://heycam.github.io/webidl/#idl-unsigned-long) becomes a WebIDL `1`. And so on.
+
+Finally, we have the actual implementation code. This is usually C++, although these days [some smart people are using Rust](https://github.com/servo/servo). The implementation, of course, has its own type system. So when they implement the WebIDL algorithms, they don't actually use WebIDL values, since those aren't "real" outside of specs. Instead, implementations apply the WebIDL binding rules in such a way as to convert incoming JavaScript values into C++ values. For example, if code in the browser called `doStuff(true, true)`, then the implementation code would eventually receive a C++ `bool` containing `true` and a C++ `uint32_t` containing `1`.
+
+The upside of all this is that implementations can abstract all the conversion logic away, letting WebIDL handle it, and focus on implementing the relevant methods in C++ with values of the correct type already provided. That is payoff of WebIDL, in a nutshell.
+
+And getting to that payoff is the goal of _this_ project—but for JavaScript implementations, instead of C++ ones. That is, this library is designed to make it easier for JavaScript developers to write functions that behave like a given WebIDL operation. So conceptually, the conversion pipeline, which in its general form is JavaScript values ↦ WebIDL values ↦ implementation-language values, in this case becomes JavaScript values ↦ WebIDL values ↦ JavaScript values. And that intermediate step is where all the logic is performed: a JavaScript `true` becomes a WebIDL `1` in an unsigned long context, which then becomes a JavaScript `1`.
+
+## Don't Use This
+
+Seriously, why would you ever use this? You really shouldn't. WebIDL is … not great, and you shouldn't be emulating its semantics. If you're looking for a generic argument-processing library, you should find one with better rules than those from WebIDL. In general, your JavaScript should not be trying to become more like WebIDL; if anything, we should fix WebIDL to make it more like JavaScript.
+
+The _only_ people who should use this are those trying to create faithful implementations (or polyfills) of web platform interfaces defined in WebIDL.
diff --git a/backend/node_modules/node-fetch/node_modules/webidl-conversions/lib/index.js b/backend/node_modules/node-fetch/node_modules/webidl-conversions/lib/index.js
new file mode 100644
index 0000000..c5153a3
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/webidl-conversions/lib/index.js
@@ -0,0 +1,189 @@
+"use strict";
+
+var conversions = {};
+module.exports = conversions;
+
+function sign(x) {
+ return x < 0 ? -1 : 1;
+}
+
+function evenRound(x) {
+ // Round x to the nearest integer, choosing the even integer if it lies halfway between two.
+ if ((x % 1) === 0.5 && (x & 1) === 0) { // [even number].5; round down (i.e. floor)
+ return Math.floor(x);
+ } else {
+ return Math.round(x);
+ }
+}
+
+function createNumberConversion(bitLength, typeOpts) {
+ if (!typeOpts.unsigned) {
+ --bitLength;
+ }
+ const lowerBound = typeOpts.unsigned ? 0 : -Math.pow(2, bitLength);
+ const upperBound = Math.pow(2, bitLength) - 1;
+
+ const moduloVal = typeOpts.moduloBitLength ? Math.pow(2, typeOpts.moduloBitLength) : Math.pow(2, bitLength);
+ const moduloBound = typeOpts.moduloBitLength ? Math.pow(2, typeOpts.moduloBitLength - 1) : Math.pow(2, bitLength - 1);
+
+ return function(V, opts) {
+ if (!opts) opts = {};
+
+ let x = +V;
+
+ if (opts.enforceRange) {
+ if (!Number.isFinite(x)) {
+ throw new TypeError("Argument is not a finite number");
+ }
+
+ x = sign(x) * Math.floor(Math.abs(x));
+ if (x < lowerBound || x > upperBound) {
+ throw new TypeError("Argument is not in byte range");
+ }
+
+ return x;
+ }
+
+ if (!isNaN(x) && opts.clamp) {
+ x = evenRound(x);
+
+ if (x < lowerBound) x = lowerBound;
+ if (x > upperBound) x = upperBound;
+ return x;
+ }
+
+ if (!Number.isFinite(x) || x === 0) {
+ return 0;
+ }
+
+ x = sign(x) * Math.floor(Math.abs(x));
+ x = x % moduloVal;
+
+ if (!typeOpts.unsigned && x >= moduloBound) {
+ return x - moduloVal;
+ } else if (typeOpts.unsigned) {
+ if (x < 0) {
+ x += moduloVal;
+ } else if (x === -0) { // don't return negative zero
+ return 0;
+ }
+ }
+
+ return x;
+ }
+}
+
+conversions["void"] = function () {
+ return undefined;
+};
+
+conversions["boolean"] = function (val) {
+ return !!val;
+};
+
+conversions["byte"] = createNumberConversion(8, { unsigned: false });
+conversions["octet"] = createNumberConversion(8, { unsigned: true });
+
+conversions["short"] = createNumberConversion(16, { unsigned: false });
+conversions["unsigned short"] = createNumberConversion(16, { unsigned: true });
+
+conversions["long"] = createNumberConversion(32, { unsigned: false });
+conversions["unsigned long"] = createNumberConversion(32, { unsigned: true });
+
+conversions["long long"] = createNumberConversion(32, { unsigned: false, moduloBitLength: 64 });
+conversions["unsigned long long"] = createNumberConversion(32, { unsigned: true, moduloBitLength: 64 });
+
+conversions["double"] = function (V) {
+ const x = +V;
+
+ if (!Number.isFinite(x)) {
+ throw new TypeError("Argument is not a finite floating-point value");
+ }
+
+ return x;
+};
+
+conversions["unrestricted double"] = function (V) {
+ const x = +V;
+
+ if (isNaN(x)) {
+ throw new TypeError("Argument is NaN");
+ }
+
+ return x;
+};
+
+// not quite valid, but good enough for JS
+conversions["float"] = conversions["double"];
+conversions["unrestricted float"] = conversions["unrestricted double"];
+
+conversions["DOMString"] = function (V, opts) {
+ if (!opts) opts = {};
+
+ if (opts.treatNullAsEmptyString && V === null) {
+ return "";
+ }
+
+ return String(V);
+};
+
+conversions["ByteString"] = function (V, opts) {
+ const x = String(V);
+ let c = undefined;
+ for (let i = 0; (c = x.codePointAt(i)) !== undefined; ++i) {
+ if (c > 255) {
+ throw new TypeError("Argument is not a valid bytestring");
+ }
+ }
+
+ return x;
+};
+
+conversions["USVString"] = function (V) {
+ const S = String(V);
+ const n = S.length;
+ const U = [];
+ for (let i = 0; i < n; ++i) {
+ const c = S.charCodeAt(i);
+ if (c < 0xD800 || c > 0xDFFF) {
+ U.push(String.fromCodePoint(c));
+ } else if (0xDC00 <= c && c <= 0xDFFF) {
+ U.push(String.fromCodePoint(0xFFFD));
+ } else {
+ if (i === n - 1) {
+ U.push(String.fromCodePoint(0xFFFD));
+ } else {
+ const d = S.charCodeAt(i + 1);
+ if (0xDC00 <= d && d <= 0xDFFF) {
+ const a = c & 0x3FF;
+ const b = d & 0x3FF;
+ U.push(String.fromCodePoint((2 << 15) + (2 << 9) * a + b));
+ ++i;
+ } else {
+ U.push(String.fromCodePoint(0xFFFD));
+ }
+ }
+ }
+ }
+
+ return U.join('');
+};
+
+conversions["Date"] = function (V, opts) {
+ if (!(V instanceof Date)) {
+ throw new TypeError("Argument is not a Date object");
+ }
+ if (isNaN(V)) {
+ return undefined;
+ }
+
+ return V;
+};
+
+conversions["RegExp"] = function (V, opts) {
+ if (!(V instanceof RegExp)) {
+ V = new RegExp(V);
+ }
+
+ return V;
+};
diff --git a/backend/node_modules/node-fetch/node_modules/webidl-conversions/package.json b/backend/node_modules/node-fetch/node_modules/webidl-conversions/package.json
new file mode 100644
index 0000000..d4ec534
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/webidl-conversions/package.json
@@ -0,0 +1,59 @@
+{
+ "_from": "webidl-conversions@^3.0.0",
+ "_id": "webidl-conversions@3.0.1",
+ "_inBundle": false,
+ "_integrity": "sha1-JFNCdeKnvGvnvIZhHMFq4KVlSHE=",
+ "_location": "/node-fetch/webidl-conversions",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "webidl-conversions@^3.0.0",
+ "name": "webidl-conversions",
+ "escapedName": "webidl-conversions",
+ "rawSpec": "^3.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^3.0.0"
+ },
+ "_requiredBy": [
+ "/node-fetch/whatwg-url"
+ ],
+ "_resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+ "_shasum": "24534275e2a7bc6be7bc86611cc16ae0a5654871",
+ "_spec": "webidl-conversions@^3.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/node-fetch/node_modules/whatwg-url",
+ "author": {
+ "name": "Domenic Denicola",
+ "email": "d@domenic.me",
+ "url": "https://domenic.me/"
+ },
+ "bugs": {
+ "url": "https://github.com/jsdom/webidl-conversions/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Implements the WebIDL algorithms for converting to and from JavaScript values",
+ "devDependencies": {
+ "mocha": "^1.21.4"
+ },
+ "files": [
+ "lib/"
+ ],
+ "homepage": "https://github.com/jsdom/webidl-conversions#readme",
+ "keywords": [
+ "webidl",
+ "web",
+ "types"
+ ],
+ "license": "BSD-2-Clause",
+ "main": "lib/index.js",
+ "name": "webidl-conversions",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/jsdom/webidl-conversions.git"
+ },
+ "scripts": {
+ "test": "mocha test/*.js"
+ },
+ "version": "3.0.1"
+}
diff --git a/backend/node_modules/node-fetch/node_modules/whatwg-url/LICENSE.txt b/backend/node_modules/node-fetch/node_modules/whatwg-url/LICENSE.txt
new file mode 100644
index 0000000..54dfac3
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/whatwg-url/LICENSE.txt
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015–2016 Sebastian Mayr
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/node-fetch/node_modules/whatwg-url/README.md b/backend/node_modules/node-fetch/node_modules/whatwg-url/README.md
new file mode 100644
index 0000000..4347a7f
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/whatwg-url/README.md
@@ -0,0 +1,67 @@
+# whatwg-url
+
+whatwg-url is a full implementation of the WHATWG [URL Standard](https://url.spec.whatwg.org/). It can be used standalone, but it also exposes a lot of the internal algorithms that are useful for integrating a URL parser into a project like [jsdom](https://github.com/tmpvar/jsdom).
+
+## Current Status
+
+whatwg-url is currently up to date with the URL spec up to commit [a62223](https://github.com/whatwg/url/commit/a622235308342c9adc7fc2fd1659ff059f7d5e2a).
+
+## API
+
+### The `URL` Constructor
+
+The main API is the [`URL`](https://url.spec.whatwg.org/#url) export, which follows the spec's behavior in all ways (including e.g. `USVString` conversion). Most consumers of this library will want to use this.
+
+### Low-level URL Standard API
+
+The following methods are exported for use by places like jsdom that need to implement things like [`HTMLHyperlinkElementUtils`](https://html.spec.whatwg.org/#htmlhyperlinkelementutils). They operate on or return an "internal URL" or ["URL record"](https://url.spec.whatwg.org/#concept-url) type.
+
+- [URL parser](https://url.spec.whatwg.org/#concept-url-parser): `parseURL(input, { baseURL, encodingOverride })`
+- [Basic URL parser](https://url.spec.whatwg.org/#concept-basic-url-parser): `basicURLParse(input, { baseURL, encodingOverride, url, stateOverride })`
+- [URL serializer](https://url.spec.whatwg.org/#concept-url-serializer): `serializeURL(urlRecord, excludeFragment)`
+- [Host serializer](https://url.spec.whatwg.org/#concept-host-serializer): `serializeHost(hostFromURLRecord)`
+- [Serialize an integer](https://url.spec.whatwg.org/#serialize-an-integer): `serializeInteger(number)`
+- [Origin](https://url.spec.whatwg.org/#concept-url-origin) [serializer](https://html.spec.whatwg.org/multipage/browsers.html#serialization-of-an-origin): `serializeURLOrigin(urlRecord)`
+- [Set the username](https://url.spec.whatwg.org/#set-the-username): `setTheUsername(urlRecord, usernameString)`
+- [Set the password](https://url.spec.whatwg.org/#set-the-password): `setThePassword(urlRecord, passwordString)`
+- [Cannot have a username/password/port](https://url.spec.whatwg.org/#cannot-have-a-username-password-port): `cannotHaveAUsernamePasswordPort(urlRecord)`
+
+The `stateOverride` parameter is one of the following strings:
+
+- [`"scheme start"`](https://url.spec.whatwg.org/#scheme-start-state)
+- [`"scheme"`](https://url.spec.whatwg.org/#scheme-state)
+- [`"no scheme"`](https://url.spec.whatwg.org/#no-scheme-state)
+- [`"special relative or authority"`](https://url.spec.whatwg.org/#special-relative-or-authority-state)
+- [`"path or authority"`](https://url.spec.whatwg.org/#path-or-authority-state)
+- [`"relative"`](https://url.spec.whatwg.org/#relative-state)
+- [`"relative slash"`](https://url.spec.whatwg.org/#relative-slash-state)
+- [`"special authority slashes"`](https://url.spec.whatwg.org/#special-authority-slashes-state)
+- [`"special authority ignore slashes"`](https://url.spec.whatwg.org/#special-authority-ignore-slashes-state)
+- [`"authority"`](https://url.spec.whatwg.org/#authority-state)
+- [`"host"`](https://url.spec.whatwg.org/#host-state)
+- [`"hostname"`](https://url.spec.whatwg.org/#hostname-state)
+- [`"port"`](https://url.spec.whatwg.org/#port-state)
+- [`"file"`](https://url.spec.whatwg.org/#file-state)
+- [`"file slash"`](https://url.spec.whatwg.org/#file-slash-state)
+- [`"file host"`](https://url.spec.whatwg.org/#file-host-state)
+- [`"path start"`](https://url.spec.whatwg.org/#path-start-state)
+- [`"path"`](https://url.spec.whatwg.org/#path-state)
+- [`"cannot-be-a-base-URL path"`](https://url.spec.whatwg.org/#cannot-be-a-base-url-path-state)
+- [`"query"`](https://url.spec.whatwg.org/#query-state)
+- [`"fragment"`](https://url.spec.whatwg.org/#fragment-state)
+
+The URL record type has the following API:
+
+- [`scheme`](https://url.spec.whatwg.org/#concept-url-scheme)
+- [`username`](https://url.spec.whatwg.org/#concept-url-username)
+- [`password`](https://url.spec.whatwg.org/#concept-url-password)
+- [`host`](https://url.spec.whatwg.org/#concept-url-host)
+- [`port`](https://url.spec.whatwg.org/#concept-url-port)
+- [`path`](https://url.spec.whatwg.org/#concept-url-path) (as an array)
+- [`query`](https://url.spec.whatwg.org/#concept-url-query)
+- [`fragment`](https://url.spec.whatwg.org/#concept-url-fragment)
+- [`cannotBeABaseURL`](https://url.spec.whatwg.org/#url-cannot-be-a-base-url-flag) (as a boolean)
+
+These properties should be treated with care, as in general changing them will cause the URL record to be in an inconsistent state until the appropriate invocation of `basicURLParse` is used to fix it up. You can see examples of this in the URL Standard, where there are many step sequences like "4. Set context object’s url’s fragment to the empty string. 5. Basic URL parse _input_ with context object’s url as _url_ and fragment state as _state override_." In between those two steps, a URL record is in an unusable state.
+
+The return value of "failure" in the spec is represented by the string `"failure"`. That is, functions like `parseURL` and `basicURLParse` can return _either_ a URL record _or_ the string `"failure"`.
diff --git a/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/URL-impl.js b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/URL-impl.js
new file mode 100644
index 0000000..dc7452c
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/URL-impl.js
@@ -0,0 +1,200 @@
+"use strict";
+const usm = require("./url-state-machine");
+
+exports.implementation = class URLImpl {
+ constructor(constructorArgs) {
+ const url = constructorArgs[0];
+ const base = constructorArgs[1];
+
+ let parsedBase = null;
+ if (base !== undefined) {
+ parsedBase = usm.basicURLParse(base);
+ if (parsedBase === "failure") {
+ throw new TypeError("Invalid base URL");
+ }
+ }
+
+ const parsedURL = usm.basicURLParse(url, { baseURL: parsedBase });
+ if (parsedURL === "failure") {
+ throw new TypeError("Invalid URL");
+ }
+
+ this._url = parsedURL;
+
+ // TODO: query stuff
+ }
+
+ get href() {
+ return usm.serializeURL(this._url);
+ }
+
+ set href(v) {
+ const parsedURL = usm.basicURLParse(v);
+ if (parsedURL === "failure") {
+ throw new TypeError("Invalid URL");
+ }
+
+ this._url = parsedURL;
+ }
+
+ get origin() {
+ return usm.serializeURLOrigin(this._url);
+ }
+
+ get protocol() {
+ return this._url.scheme + ":";
+ }
+
+ set protocol(v) {
+ usm.basicURLParse(v + ":", { url: this._url, stateOverride: "scheme start" });
+ }
+
+ get username() {
+ return this._url.username;
+ }
+
+ set username(v) {
+ if (usm.cannotHaveAUsernamePasswordPort(this._url)) {
+ return;
+ }
+
+ usm.setTheUsername(this._url, v);
+ }
+
+ get password() {
+ return this._url.password;
+ }
+
+ set password(v) {
+ if (usm.cannotHaveAUsernamePasswordPort(this._url)) {
+ return;
+ }
+
+ usm.setThePassword(this._url, v);
+ }
+
+ get host() {
+ const url = this._url;
+
+ if (url.host === null) {
+ return "";
+ }
+
+ if (url.port === null) {
+ return usm.serializeHost(url.host);
+ }
+
+ return usm.serializeHost(url.host) + ":" + usm.serializeInteger(url.port);
+ }
+
+ set host(v) {
+ if (this._url.cannotBeABaseURL) {
+ return;
+ }
+
+ usm.basicURLParse(v, { url: this._url, stateOverride: "host" });
+ }
+
+ get hostname() {
+ if (this._url.host === null) {
+ return "";
+ }
+
+ return usm.serializeHost(this._url.host);
+ }
+
+ set hostname(v) {
+ if (this._url.cannotBeABaseURL) {
+ return;
+ }
+
+ usm.basicURLParse(v, { url: this._url, stateOverride: "hostname" });
+ }
+
+ get port() {
+ if (this._url.port === null) {
+ return "";
+ }
+
+ return usm.serializeInteger(this._url.port);
+ }
+
+ set port(v) {
+ if (usm.cannotHaveAUsernamePasswordPort(this._url)) {
+ return;
+ }
+
+ if (v === "") {
+ this._url.port = null;
+ } else {
+ usm.basicURLParse(v, { url: this._url, stateOverride: "port" });
+ }
+ }
+
+ get pathname() {
+ if (this._url.cannotBeABaseURL) {
+ return this._url.path[0];
+ }
+
+ if (this._url.path.length === 0) {
+ return "";
+ }
+
+ return "/" + this._url.path.join("/");
+ }
+
+ set pathname(v) {
+ if (this._url.cannotBeABaseURL) {
+ return;
+ }
+
+ this._url.path = [];
+ usm.basicURLParse(v, { url: this._url, stateOverride: "path start" });
+ }
+
+ get search() {
+ if (this._url.query === null || this._url.query === "") {
+ return "";
+ }
+
+ return "?" + this._url.query;
+ }
+
+ set search(v) {
+ // TODO: query stuff
+
+ const url = this._url;
+
+ if (v === "") {
+ url.query = null;
+ return;
+ }
+
+ const input = v[0] === "?" ? v.substring(1) : v;
+ url.query = "";
+ usm.basicURLParse(input, { url, stateOverride: "query" });
+ }
+
+ get hash() {
+ if (this._url.fragment === null || this._url.fragment === "") {
+ return "";
+ }
+
+ return "#" + this._url.fragment;
+ }
+
+ set hash(v) {
+ if (v === "") {
+ this._url.fragment = null;
+ return;
+ }
+
+ const input = v[0] === "#" ? v.substring(1) : v;
+ this._url.fragment = "";
+ usm.basicURLParse(input, { url: this._url, stateOverride: "fragment" });
+ }
+
+ toJSON() {
+ return this.href;
+ }
+};
diff --git a/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/URL.js b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/URL.js
new file mode 100644
index 0000000..78c7207
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/URL.js
@@ -0,0 +1,196 @@
+"use strict";
+
+const conversions = require("webidl-conversions");
+const utils = require("./utils.js");
+const Impl = require(".//URL-impl.js");
+
+const impl = utils.implSymbol;
+
+function URL(url) {
+ if (!this || this[impl] || !(this instanceof URL)) {
+ throw new TypeError("Failed to construct 'URL': Please use the 'new' operator, this DOM object constructor cannot be called as a function.");
+ }
+ if (arguments.length < 1) {
+ throw new TypeError("Failed to construct 'URL': 1 argument required, but only " + arguments.length + " present.");
+ }
+ const args = [];
+ for (let i = 0; i < arguments.length && i < 2; ++i) {
+ args[i] = arguments[i];
+ }
+ args[0] = conversions["USVString"](args[0]);
+ if (args[1] !== undefined) {
+ args[1] = conversions["USVString"](args[1]);
+ }
+
+ module.exports.setup(this, args);
+}
+
+URL.prototype.toJSON = function toJSON() {
+ if (!this || !module.exports.is(this)) {
+ throw new TypeError("Illegal invocation");
+ }
+ const args = [];
+ for (let i = 0; i < arguments.length && i < 0; ++i) {
+ args[i] = arguments[i];
+ }
+ return this[impl].toJSON.apply(this[impl], args);
+};
+Object.defineProperty(URL.prototype, "href", {
+ get() {
+ return this[impl].href;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].href = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+URL.prototype.toString = function () {
+ if (!this || !module.exports.is(this)) {
+ throw new TypeError("Illegal invocation");
+ }
+ return this.href;
+};
+
+Object.defineProperty(URL.prototype, "origin", {
+ get() {
+ return this[impl].origin;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+Object.defineProperty(URL.prototype, "protocol", {
+ get() {
+ return this[impl].protocol;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].protocol = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+Object.defineProperty(URL.prototype, "username", {
+ get() {
+ return this[impl].username;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].username = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+Object.defineProperty(URL.prototype, "password", {
+ get() {
+ return this[impl].password;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].password = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+Object.defineProperty(URL.prototype, "host", {
+ get() {
+ return this[impl].host;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].host = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+Object.defineProperty(URL.prototype, "hostname", {
+ get() {
+ return this[impl].hostname;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].hostname = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+Object.defineProperty(URL.prototype, "port", {
+ get() {
+ return this[impl].port;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].port = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+Object.defineProperty(URL.prototype, "pathname", {
+ get() {
+ return this[impl].pathname;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].pathname = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+Object.defineProperty(URL.prototype, "search", {
+ get() {
+ return this[impl].search;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].search = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+Object.defineProperty(URL.prototype, "hash", {
+ get() {
+ return this[impl].hash;
+ },
+ set(V) {
+ V = conversions["USVString"](V);
+ this[impl].hash = V;
+ },
+ enumerable: true,
+ configurable: true
+});
+
+
+module.exports = {
+ is(obj) {
+ return !!obj && obj[impl] instanceof Impl.implementation;
+ },
+ create(constructorArgs, privateData) {
+ let obj = Object.create(URL.prototype);
+ this.setup(obj, constructorArgs, privateData);
+ return obj;
+ },
+ setup(obj, constructorArgs, privateData) {
+ if (!privateData) privateData = {};
+ privateData.wrapper = obj;
+
+ obj[impl] = new Impl.implementation(constructorArgs, privateData);
+ obj[impl][utils.wrapperSymbol] = obj;
+ },
+ interface: URL,
+ expose: {
+ Window: { URL: URL },
+ Worker: { URL: URL }
+ }
+};
+
diff --git a/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/public-api.js b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/public-api.js
new file mode 100644
index 0000000..932dcad
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/public-api.js
@@ -0,0 +1,11 @@
+"use strict";
+
+exports.URL = require("./URL").interface;
+exports.serializeURL = require("./url-state-machine").serializeURL;
+exports.serializeURLOrigin = require("./url-state-machine").serializeURLOrigin;
+exports.basicURLParse = require("./url-state-machine").basicURLParse;
+exports.setTheUsername = require("./url-state-machine").setTheUsername;
+exports.setThePassword = require("./url-state-machine").setThePassword;
+exports.serializeHost = require("./url-state-machine").serializeHost;
+exports.serializeInteger = require("./url-state-machine").serializeInteger;
+exports.parseURL = require("./url-state-machine").parseURL;
diff --git a/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/url-state-machine.js b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/url-state-machine.js
new file mode 100644
index 0000000..c25dbc2
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/url-state-machine.js
@@ -0,0 +1,1297 @@
+"use strict";
+const punycode = require("punycode");
+const tr46 = require("tr46");
+
+const specialSchemes = {
+ ftp: 21,
+ file: null,
+ gopher: 70,
+ http: 80,
+ https: 443,
+ ws: 80,
+ wss: 443
+};
+
+const failure = Symbol("failure");
+
+function countSymbols(str) {
+ return punycode.ucs2.decode(str).length;
+}
+
+function at(input, idx) {
+ const c = input[idx];
+ return isNaN(c) ? undefined : String.fromCodePoint(c);
+}
+
+function isASCIIDigit(c) {
+ return c >= 0x30 && c <= 0x39;
+}
+
+function isASCIIAlpha(c) {
+ return (c >= 0x41 && c <= 0x5A) || (c >= 0x61 && c <= 0x7A);
+}
+
+function isASCIIAlphanumeric(c) {
+ return isASCIIAlpha(c) || isASCIIDigit(c);
+}
+
+function isASCIIHex(c) {
+ return isASCIIDigit(c) || (c >= 0x41 && c <= 0x46) || (c >= 0x61 && c <= 0x66);
+}
+
+function isSingleDot(buffer) {
+ return buffer === "." || buffer.toLowerCase() === "%2e";
+}
+
+function isDoubleDot(buffer) {
+ buffer = buffer.toLowerCase();
+ return buffer === ".." || buffer === "%2e." || buffer === ".%2e" || buffer === "%2e%2e";
+}
+
+function isWindowsDriveLetterCodePoints(cp1, cp2) {
+ return isASCIIAlpha(cp1) && (cp2 === 58 || cp2 === 124);
+}
+
+function isWindowsDriveLetterString(string) {
+ return string.length === 2 && isASCIIAlpha(string.codePointAt(0)) && (string[1] === ":" || string[1] === "|");
+}
+
+function isNormalizedWindowsDriveLetterString(string) {
+ return string.length === 2 && isASCIIAlpha(string.codePointAt(0)) && string[1] === ":";
+}
+
+function containsForbiddenHostCodePoint(string) {
+ return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|%|\/|:|\?|@|\[|\\|\]/) !== -1;
+}
+
+function containsForbiddenHostCodePointExcludingPercent(string) {
+ return string.search(/\u0000|\u0009|\u000A|\u000D|\u0020|#|\/|:|\?|@|\[|\\|\]/) !== -1;
+}
+
+function isSpecialScheme(scheme) {
+ return specialSchemes[scheme] !== undefined;
+}
+
+function isSpecial(url) {
+ return isSpecialScheme(url.scheme);
+}
+
+function defaultPort(scheme) {
+ return specialSchemes[scheme];
+}
+
+function percentEncode(c) {
+ let hex = c.toString(16).toUpperCase();
+ if (hex.length === 1) {
+ hex = "0" + hex;
+ }
+
+ return "%" + hex;
+}
+
+function utf8PercentEncode(c) {
+ const buf = new Buffer(c);
+
+ let str = "";
+
+ for (let i = 0; i < buf.length; ++i) {
+ str += percentEncode(buf[i]);
+ }
+
+ return str;
+}
+
+function utf8PercentDecode(str) {
+ const input = new Buffer(str);
+ const output = [];
+ for (let i = 0; i < input.length; ++i) {
+ if (input[i] !== 37) {
+ output.push(input[i]);
+ } else if (input[i] === 37 && isASCIIHex(input[i + 1]) && isASCIIHex(input[i + 2])) {
+ output.push(parseInt(input.slice(i + 1, i + 3).toString(), 16));
+ i += 2;
+ } else {
+ output.push(input[i]);
+ }
+ }
+ return new Buffer(output).toString();
+}
+
+function isC0ControlPercentEncode(c) {
+ return c <= 0x1F || c > 0x7E;
+}
+
+const extraPathPercentEncodeSet = new Set([32, 34, 35, 60, 62, 63, 96, 123, 125]);
+function isPathPercentEncode(c) {
+ return isC0ControlPercentEncode(c) || extraPathPercentEncodeSet.has(c);
+}
+
+const extraUserinfoPercentEncodeSet =
+ new Set([47, 58, 59, 61, 64, 91, 92, 93, 94, 124]);
+function isUserinfoPercentEncode(c) {
+ return isPathPercentEncode(c) || extraUserinfoPercentEncodeSet.has(c);
+}
+
+function percentEncodeChar(c, encodeSetPredicate) {
+ const cStr = String.fromCodePoint(c);
+
+ if (encodeSetPredicate(c)) {
+ return utf8PercentEncode(cStr);
+ }
+
+ return cStr;
+}
+
+function parseIPv4Number(input) {
+ let R = 10;
+
+ if (input.length >= 2 && input.charAt(0) === "0" && input.charAt(1).toLowerCase() === "x") {
+ input = input.substring(2);
+ R = 16;
+ } else if (input.length >= 2 && input.charAt(0) === "0") {
+ input = input.substring(1);
+ R = 8;
+ }
+
+ if (input === "") {
+ return 0;
+ }
+
+ const regex = R === 10 ? /[^0-9]/ : (R === 16 ? /[^0-9A-Fa-f]/ : /[^0-7]/);
+ if (regex.test(input)) {
+ return failure;
+ }
+
+ return parseInt(input, R);
+}
+
+function parseIPv4(input) {
+ const parts = input.split(".");
+ if (parts[parts.length - 1] === "") {
+ if (parts.length > 1) {
+ parts.pop();
+ }
+ }
+
+ if (parts.length > 4) {
+ return input;
+ }
+
+ const numbers = [];
+ for (const part of parts) {
+ if (part === "") {
+ return input;
+ }
+ const n = parseIPv4Number(part);
+ if (n === failure) {
+ return input;
+ }
+
+ numbers.push(n);
+ }
+
+ for (let i = 0; i < numbers.length - 1; ++i) {
+ if (numbers[i] > 255) {
+ return failure;
+ }
+ }
+ if (numbers[numbers.length - 1] >= Math.pow(256, 5 - numbers.length)) {
+ return failure;
+ }
+
+ let ipv4 = numbers.pop();
+ let counter = 0;
+
+ for (const n of numbers) {
+ ipv4 += n * Math.pow(256, 3 - counter);
+ ++counter;
+ }
+
+ return ipv4;
+}
+
+function serializeIPv4(address) {
+ let output = "";
+ let n = address;
+
+ for (let i = 1; i <= 4; ++i) {
+ output = String(n % 256) + output;
+ if (i !== 4) {
+ output = "." + output;
+ }
+ n = Math.floor(n / 256);
+ }
+
+ return output;
+}
+
+function parseIPv6(input) {
+ const address = [0, 0, 0, 0, 0, 0, 0, 0];
+ let pieceIndex = 0;
+ let compress = null;
+ let pointer = 0;
+
+ input = punycode.ucs2.decode(input);
+
+ if (input[pointer] === 58) {
+ if (input[pointer + 1] !== 58) {
+ return failure;
+ }
+
+ pointer += 2;
+ ++pieceIndex;
+ compress = pieceIndex;
+ }
+
+ while (pointer < input.length) {
+ if (pieceIndex === 8) {
+ return failure;
+ }
+
+ if (input[pointer] === 58) {
+ if (compress !== null) {
+ return failure;
+ }
+ ++pointer;
+ ++pieceIndex;
+ compress = pieceIndex;
+ continue;
+ }
+
+ let value = 0;
+ let length = 0;
+
+ while (length < 4 && isASCIIHex(input[pointer])) {
+ value = value * 0x10 + parseInt(at(input, pointer), 16);
+ ++pointer;
+ ++length;
+ }
+
+ if (input[pointer] === 46) {
+ if (length === 0) {
+ return failure;
+ }
+
+ pointer -= length;
+
+ if (pieceIndex > 6) {
+ return failure;
+ }
+
+ let numbersSeen = 0;
+
+ while (input[pointer] !== undefined) {
+ let ipv4Piece = null;
+
+ if (numbersSeen > 0) {
+ if (input[pointer] === 46 && numbersSeen < 4) {
+ ++pointer;
+ } else {
+ return failure;
+ }
+ }
+
+ if (!isASCIIDigit(input[pointer])) {
+ return failure;
+ }
+
+ while (isASCIIDigit(input[pointer])) {
+ const number = parseInt(at(input, pointer));
+ if (ipv4Piece === null) {
+ ipv4Piece = number;
+ } else if (ipv4Piece === 0) {
+ return failure;
+ } else {
+ ipv4Piece = ipv4Piece * 10 + number;
+ }
+ if (ipv4Piece > 255) {
+ return failure;
+ }
+ ++pointer;
+ }
+
+ address[pieceIndex] = address[pieceIndex] * 0x100 + ipv4Piece;
+
+ ++numbersSeen;
+
+ if (numbersSeen === 2 || numbersSeen === 4) {
+ ++pieceIndex;
+ }
+ }
+
+ if (numbersSeen !== 4) {
+ return failure;
+ }
+
+ break;
+ } else if (input[pointer] === 58) {
+ ++pointer;
+ if (input[pointer] === undefined) {
+ return failure;
+ }
+ } else if (input[pointer] !== undefined) {
+ return failure;
+ }
+
+ address[pieceIndex] = value;
+ ++pieceIndex;
+ }
+
+ if (compress !== null) {
+ let swaps = pieceIndex - compress;
+ pieceIndex = 7;
+ while (pieceIndex !== 0 && swaps > 0) {
+ const temp = address[compress + swaps - 1];
+ address[compress + swaps - 1] = address[pieceIndex];
+ address[pieceIndex] = temp;
+ --pieceIndex;
+ --swaps;
+ }
+ } else if (compress === null && pieceIndex !== 8) {
+ return failure;
+ }
+
+ return address;
+}
+
+function serializeIPv6(address) {
+ let output = "";
+ const seqResult = findLongestZeroSequence(address);
+ const compress = seqResult.idx;
+ let ignore0 = false;
+
+ for (let pieceIndex = 0; pieceIndex <= 7; ++pieceIndex) {
+ if (ignore0 && address[pieceIndex] === 0) {
+ continue;
+ } else if (ignore0) {
+ ignore0 = false;
+ }
+
+ if (compress === pieceIndex) {
+ const separator = pieceIndex === 0 ? "::" : ":";
+ output += separator;
+ ignore0 = true;
+ continue;
+ }
+
+ output += address[pieceIndex].toString(16);
+
+ if (pieceIndex !== 7) {
+ output += ":";
+ }
+ }
+
+ return output;
+}
+
+function parseHost(input, isSpecialArg) {
+ if (input[0] === "[") {
+ if (input[input.length - 1] !== "]") {
+ return failure;
+ }
+
+ return parseIPv6(input.substring(1, input.length - 1));
+ }
+
+ if (!isSpecialArg) {
+ return parseOpaqueHost(input);
+ }
+
+ const domain = utf8PercentDecode(input);
+ const asciiDomain = tr46.toASCII(domain, false, tr46.PROCESSING_OPTIONS.NONTRANSITIONAL, false);
+ if (asciiDomain === null) {
+ return failure;
+ }
+
+ if (containsForbiddenHostCodePoint(asciiDomain)) {
+ return failure;
+ }
+
+ const ipv4Host = parseIPv4(asciiDomain);
+ if (typeof ipv4Host === "number" || ipv4Host === failure) {
+ return ipv4Host;
+ }
+
+ return asciiDomain;
+}
+
+function parseOpaqueHost(input) {
+ if (containsForbiddenHostCodePointExcludingPercent(input)) {
+ return failure;
+ }
+
+ let output = "";
+ const decoded = punycode.ucs2.decode(input);
+ for (let i = 0; i < decoded.length; ++i) {
+ output += percentEncodeChar(decoded[i], isC0ControlPercentEncode);
+ }
+ return output;
+}
+
+function findLongestZeroSequence(arr) {
+ let maxIdx = null;
+ let maxLen = 1; // only find elements > 1
+ let currStart = null;
+ let currLen = 0;
+
+ for (let i = 0; i < arr.length; ++i) {
+ if (arr[i] !== 0) {
+ if (currLen > maxLen) {
+ maxIdx = currStart;
+ maxLen = currLen;
+ }
+
+ currStart = null;
+ currLen = 0;
+ } else {
+ if (currStart === null) {
+ currStart = i;
+ }
+ ++currLen;
+ }
+ }
+
+ // if trailing zeros
+ if (currLen > maxLen) {
+ maxIdx = currStart;
+ maxLen = currLen;
+ }
+
+ return {
+ idx: maxIdx,
+ len: maxLen
+ };
+}
+
+function serializeHost(host) {
+ if (typeof host === "number") {
+ return serializeIPv4(host);
+ }
+
+ // IPv6 serializer
+ if (host instanceof Array) {
+ return "[" + serializeIPv6(host) + "]";
+ }
+
+ return host;
+}
+
+function trimControlChars(url) {
+ return url.replace(/^[\u0000-\u001F\u0020]+|[\u0000-\u001F\u0020]+$/g, "");
+}
+
+function trimTabAndNewline(url) {
+ return url.replace(/\u0009|\u000A|\u000D/g, "");
+}
+
+function shortenPath(url) {
+ const path = url.path;
+ if (path.length === 0) {
+ return;
+ }
+ if (url.scheme === "file" && path.length === 1 && isNormalizedWindowsDriveLetter(path[0])) {
+ return;
+ }
+
+ path.pop();
+}
+
+function includesCredentials(url) {
+ return url.username !== "" || url.password !== "";
+}
+
+function cannotHaveAUsernamePasswordPort(url) {
+ return url.host === null || url.host === "" || url.cannotBeABaseURL || url.scheme === "file";
+}
+
+function isNormalizedWindowsDriveLetter(string) {
+ return /^[A-Za-z]:$/.test(string);
+}
+
+function URLStateMachine(input, base, encodingOverride, url, stateOverride) {
+ this.pointer = 0;
+ this.input = input;
+ this.base = base || null;
+ this.encodingOverride = encodingOverride || "utf-8";
+ this.stateOverride = stateOverride;
+ this.url = url;
+ this.failure = false;
+ this.parseError = false;
+
+ if (!this.url) {
+ this.url = {
+ scheme: "",
+ username: "",
+ password: "",
+ host: null,
+ port: null,
+ path: [],
+ query: null,
+ fragment: null,
+
+ cannotBeABaseURL: false
+ };
+
+ const res = trimControlChars(this.input);
+ if (res !== this.input) {
+ this.parseError = true;
+ }
+ this.input = res;
+ }
+
+ const res = trimTabAndNewline(this.input);
+ if (res !== this.input) {
+ this.parseError = true;
+ }
+ this.input = res;
+
+ this.state = stateOverride || "scheme start";
+
+ this.buffer = "";
+ this.atFlag = false;
+ this.arrFlag = false;
+ this.passwordTokenSeenFlag = false;
+
+ this.input = punycode.ucs2.decode(this.input);
+
+ for (; this.pointer <= this.input.length; ++this.pointer) {
+ const c = this.input[this.pointer];
+ const cStr = isNaN(c) ? undefined : String.fromCodePoint(c);
+
+ // exec state machine
+ const ret = this["parse " + this.state](c, cStr);
+ if (!ret) {
+ break; // terminate algorithm
+ } else if (ret === failure) {
+ this.failure = true;
+ break;
+ }
+ }
+}
+
+URLStateMachine.prototype["parse scheme start"] = function parseSchemeStart(c, cStr) {
+ if (isASCIIAlpha(c)) {
+ this.buffer += cStr.toLowerCase();
+ this.state = "scheme";
+ } else if (!this.stateOverride) {
+ this.state = "no scheme";
+ --this.pointer;
+ } else {
+ this.parseError = true;
+ return failure;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse scheme"] = function parseScheme(c, cStr) {
+ if (isASCIIAlphanumeric(c) || c === 43 || c === 45 || c === 46) {
+ this.buffer += cStr.toLowerCase();
+ } else if (c === 58) {
+ if (this.stateOverride) {
+ if (isSpecial(this.url) && !isSpecialScheme(this.buffer)) {
+ return false;
+ }
+
+ if (!isSpecial(this.url) && isSpecialScheme(this.buffer)) {
+ return false;
+ }
+
+ if ((includesCredentials(this.url) || this.url.port !== null) && this.buffer === "file") {
+ return false;
+ }
+
+ if (this.url.scheme === "file" && (this.url.host === "" || this.url.host === null)) {
+ return false;
+ }
+ }
+ this.url.scheme = this.buffer;
+ this.buffer = "";
+ if (this.stateOverride) {
+ return false;
+ }
+ if (this.url.scheme === "file") {
+ if (this.input[this.pointer + 1] !== 47 || this.input[this.pointer + 2] !== 47) {
+ this.parseError = true;
+ }
+ this.state = "file";
+ } else if (isSpecial(this.url) && this.base !== null && this.base.scheme === this.url.scheme) {
+ this.state = "special relative or authority";
+ } else if (isSpecial(this.url)) {
+ this.state = "special authority slashes";
+ } else if (this.input[this.pointer + 1] === 47) {
+ this.state = "path or authority";
+ ++this.pointer;
+ } else {
+ this.url.cannotBeABaseURL = true;
+ this.url.path.push("");
+ this.state = "cannot-be-a-base-URL path";
+ }
+ } else if (!this.stateOverride) {
+ this.buffer = "";
+ this.state = "no scheme";
+ this.pointer = -1;
+ } else {
+ this.parseError = true;
+ return failure;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse no scheme"] = function parseNoScheme(c) {
+ if (this.base === null || (this.base.cannotBeABaseURL && c !== 35)) {
+ return failure;
+ } else if (this.base.cannotBeABaseURL && c === 35) {
+ this.url.scheme = this.base.scheme;
+ this.url.path = this.base.path.slice();
+ this.url.query = this.base.query;
+ this.url.fragment = "";
+ this.url.cannotBeABaseURL = true;
+ this.state = "fragment";
+ } else if (this.base.scheme === "file") {
+ this.state = "file";
+ --this.pointer;
+ } else {
+ this.state = "relative";
+ --this.pointer;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse special relative or authority"] = function parseSpecialRelativeOrAuthority(c) {
+ if (c === 47 && this.input[this.pointer + 1] === 47) {
+ this.state = "special authority ignore slashes";
+ ++this.pointer;
+ } else {
+ this.parseError = true;
+ this.state = "relative";
+ --this.pointer;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse path or authority"] = function parsePathOrAuthority(c) {
+ if (c === 47) {
+ this.state = "authority";
+ } else {
+ this.state = "path";
+ --this.pointer;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse relative"] = function parseRelative(c) {
+ this.url.scheme = this.base.scheme;
+ if (isNaN(c)) {
+ this.url.username = this.base.username;
+ this.url.password = this.base.password;
+ this.url.host = this.base.host;
+ this.url.port = this.base.port;
+ this.url.path = this.base.path.slice();
+ this.url.query = this.base.query;
+ } else if (c === 47) {
+ this.state = "relative slash";
+ } else if (c === 63) {
+ this.url.username = this.base.username;
+ this.url.password = this.base.password;
+ this.url.host = this.base.host;
+ this.url.port = this.base.port;
+ this.url.path = this.base.path.slice();
+ this.url.query = "";
+ this.state = "query";
+ } else if (c === 35) {
+ this.url.username = this.base.username;
+ this.url.password = this.base.password;
+ this.url.host = this.base.host;
+ this.url.port = this.base.port;
+ this.url.path = this.base.path.slice();
+ this.url.query = this.base.query;
+ this.url.fragment = "";
+ this.state = "fragment";
+ } else if (isSpecial(this.url) && c === 92) {
+ this.parseError = true;
+ this.state = "relative slash";
+ } else {
+ this.url.username = this.base.username;
+ this.url.password = this.base.password;
+ this.url.host = this.base.host;
+ this.url.port = this.base.port;
+ this.url.path = this.base.path.slice(0, this.base.path.length - 1);
+
+ this.state = "path";
+ --this.pointer;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse relative slash"] = function parseRelativeSlash(c) {
+ if (isSpecial(this.url) && (c === 47 || c === 92)) {
+ if (c === 92) {
+ this.parseError = true;
+ }
+ this.state = "special authority ignore slashes";
+ } else if (c === 47) {
+ this.state = "authority";
+ } else {
+ this.url.username = this.base.username;
+ this.url.password = this.base.password;
+ this.url.host = this.base.host;
+ this.url.port = this.base.port;
+ this.state = "path";
+ --this.pointer;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse special authority slashes"] = function parseSpecialAuthoritySlashes(c) {
+ if (c === 47 && this.input[this.pointer + 1] === 47) {
+ this.state = "special authority ignore slashes";
+ ++this.pointer;
+ } else {
+ this.parseError = true;
+ this.state = "special authority ignore slashes";
+ --this.pointer;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse special authority ignore slashes"] = function parseSpecialAuthorityIgnoreSlashes(c) {
+ if (c !== 47 && c !== 92) {
+ this.state = "authority";
+ --this.pointer;
+ } else {
+ this.parseError = true;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse authority"] = function parseAuthority(c, cStr) {
+ if (c === 64) {
+ this.parseError = true;
+ if (this.atFlag) {
+ this.buffer = "%40" + this.buffer;
+ }
+ this.atFlag = true;
+
+ // careful, this is based on buffer and has its own pointer (this.pointer != pointer) and inner chars
+ const len = countSymbols(this.buffer);
+ for (let pointer = 0; pointer < len; ++pointer) {
+ const codePoint = this.buffer.codePointAt(pointer);
+
+ if (codePoint === 58 && !this.passwordTokenSeenFlag) {
+ this.passwordTokenSeenFlag = true;
+ continue;
+ }
+ const encodedCodePoints = percentEncodeChar(codePoint, isUserinfoPercentEncode);
+ if (this.passwordTokenSeenFlag) {
+ this.url.password += encodedCodePoints;
+ } else {
+ this.url.username += encodedCodePoints;
+ }
+ }
+ this.buffer = "";
+ } else if (isNaN(c) || c === 47 || c === 63 || c === 35 ||
+ (isSpecial(this.url) && c === 92)) {
+ if (this.atFlag && this.buffer === "") {
+ this.parseError = true;
+ return failure;
+ }
+ this.pointer -= countSymbols(this.buffer) + 1;
+ this.buffer = "";
+ this.state = "host";
+ } else {
+ this.buffer += cStr;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse hostname"] =
+URLStateMachine.prototype["parse host"] = function parseHostName(c, cStr) {
+ if (this.stateOverride && this.url.scheme === "file") {
+ --this.pointer;
+ this.state = "file host";
+ } else if (c === 58 && !this.arrFlag) {
+ if (this.buffer === "") {
+ this.parseError = true;
+ return failure;
+ }
+
+ const host = parseHost(this.buffer, isSpecial(this.url));
+ if (host === failure) {
+ return failure;
+ }
+
+ this.url.host = host;
+ this.buffer = "";
+ this.state = "port";
+ if (this.stateOverride === "hostname") {
+ return false;
+ }
+ } else if (isNaN(c) || c === 47 || c === 63 || c === 35 ||
+ (isSpecial(this.url) && c === 92)) {
+ --this.pointer;
+ if (isSpecial(this.url) && this.buffer === "") {
+ this.parseError = true;
+ return failure;
+ } else if (this.stateOverride && this.buffer === "" &&
+ (includesCredentials(this.url) || this.url.port !== null)) {
+ this.parseError = true;
+ return false;
+ }
+
+ const host = parseHost(this.buffer, isSpecial(this.url));
+ if (host === failure) {
+ return failure;
+ }
+
+ this.url.host = host;
+ this.buffer = "";
+ this.state = "path start";
+ if (this.stateOverride) {
+ return false;
+ }
+ } else {
+ if (c === 91) {
+ this.arrFlag = true;
+ } else if (c === 93) {
+ this.arrFlag = false;
+ }
+ this.buffer += cStr;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse port"] = function parsePort(c, cStr) {
+ if (isASCIIDigit(c)) {
+ this.buffer += cStr;
+ } else if (isNaN(c) || c === 47 || c === 63 || c === 35 ||
+ (isSpecial(this.url) && c === 92) ||
+ this.stateOverride) {
+ if (this.buffer !== "") {
+ const port = parseInt(this.buffer);
+ if (port > Math.pow(2, 16) - 1) {
+ this.parseError = true;
+ return failure;
+ }
+ this.url.port = port === defaultPort(this.url.scheme) ? null : port;
+ this.buffer = "";
+ }
+ if (this.stateOverride) {
+ return false;
+ }
+ this.state = "path start";
+ --this.pointer;
+ } else {
+ this.parseError = true;
+ return failure;
+ }
+
+ return true;
+};
+
+const fileOtherwiseCodePoints = new Set([47, 92, 63, 35]);
+
+URLStateMachine.prototype["parse file"] = function parseFile(c) {
+ this.url.scheme = "file";
+
+ if (c === 47 || c === 92) {
+ if (c === 92) {
+ this.parseError = true;
+ }
+ this.state = "file slash";
+ } else if (this.base !== null && this.base.scheme === "file") {
+ if (isNaN(c)) {
+ this.url.host = this.base.host;
+ this.url.path = this.base.path.slice();
+ this.url.query = this.base.query;
+ } else if (c === 63) {
+ this.url.host = this.base.host;
+ this.url.path = this.base.path.slice();
+ this.url.query = "";
+ this.state = "query";
+ } else if (c === 35) {
+ this.url.host = this.base.host;
+ this.url.path = this.base.path.slice();
+ this.url.query = this.base.query;
+ this.url.fragment = "";
+ this.state = "fragment";
+ } else {
+ if (this.input.length - this.pointer - 1 === 0 || // remaining consists of 0 code points
+ !isWindowsDriveLetterCodePoints(c, this.input[this.pointer + 1]) ||
+ (this.input.length - this.pointer - 1 >= 2 && // remaining has at least 2 code points
+ !fileOtherwiseCodePoints.has(this.input[this.pointer + 2]))) {
+ this.url.host = this.base.host;
+ this.url.path = this.base.path.slice();
+ shortenPath(this.url);
+ } else {
+ this.parseError = true;
+ }
+
+ this.state = "path";
+ --this.pointer;
+ }
+ } else {
+ this.state = "path";
+ --this.pointer;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse file slash"] = function parseFileSlash(c) {
+ if (c === 47 || c === 92) {
+ if (c === 92) {
+ this.parseError = true;
+ }
+ this.state = "file host";
+ } else {
+ if (this.base !== null && this.base.scheme === "file") {
+ if (isNormalizedWindowsDriveLetterString(this.base.path[0])) {
+ this.url.path.push(this.base.path[0]);
+ } else {
+ this.url.host = this.base.host;
+ }
+ }
+ this.state = "path";
+ --this.pointer;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse file host"] = function parseFileHost(c, cStr) {
+ if (isNaN(c) || c === 47 || c === 92 || c === 63 || c === 35) {
+ --this.pointer;
+ if (!this.stateOverride && isWindowsDriveLetterString(this.buffer)) {
+ this.parseError = true;
+ this.state = "path";
+ } else if (this.buffer === "") {
+ this.url.host = "";
+ if (this.stateOverride) {
+ return false;
+ }
+ this.state = "path start";
+ } else {
+ let host = parseHost(this.buffer, isSpecial(this.url));
+ if (host === failure) {
+ return failure;
+ }
+ if (host === "localhost") {
+ host = "";
+ }
+ this.url.host = host;
+
+ if (this.stateOverride) {
+ return false;
+ }
+
+ this.buffer = "";
+ this.state = "path start";
+ }
+ } else {
+ this.buffer += cStr;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse path start"] = function parsePathStart(c) {
+ if (isSpecial(this.url)) {
+ if (c === 92) {
+ this.parseError = true;
+ }
+ this.state = "path";
+
+ if (c !== 47 && c !== 92) {
+ --this.pointer;
+ }
+ } else if (!this.stateOverride && c === 63) {
+ this.url.query = "";
+ this.state = "query";
+ } else if (!this.stateOverride && c === 35) {
+ this.url.fragment = "";
+ this.state = "fragment";
+ } else if (c !== undefined) {
+ this.state = "path";
+ if (c !== 47) {
+ --this.pointer;
+ }
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse path"] = function parsePath(c) {
+ if (isNaN(c) || c === 47 || (isSpecial(this.url) && c === 92) ||
+ (!this.stateOverride && (c === 63 || c === 35))) {
+ if (isSpecial(this.url) && c === 92) {
+ this.parseError = true;
+ }
+
+ if (isDoubleDot(this.buffer)) {
+ shortenPath(this.url);
+ if (c !== 47 && !(isSpecial(this.url) && c === 92)) {
+ this.url.path.push("");
+ }
+ } else if (isSingleDot(this.buffer) && c !== 47 &&
+ !(isSpecial(this.url) && c === 92)) {
+ this.url.path.push("");
+ } else if (!isSingleDot(this.buffer)) {
+ if (this.url.scheme === "file" && this.url.path.length === 0 && isWindowsDriveLetterString(this.buffer)) {
+ if (this.url.host !== "" && this.url.host !== null) {
+ this.parseError = true;
+ this.url.host = "";
+ }
+ this.buffer = this.buffer[0] + ":";
+ }
+ this.url.path.push(this.buffer);
+ }
+ this.buffer = "";
+ if (this.url.scheme === "file" && (c === undefined || c === 63 || c === 35)) {
+ while (this.url.path.length > 1 && this.url.path[0] === "") {
+ this.parseError = true;
+ this.url.path.shift();
+ }
+ }
+ if (c === 63) {
+ this.url.query = "";
+ this.state = "query";
+ }
+ if (c === 35) {
+ this.url.fragment = "";
+ this.state = "fragment";
+ }
+ } else {
+ // TODO: If c is not a URL code point and not "%", parse error.
+
+ if (c === 37 &&
+ (!isASCIIHex(this.input[this.pointer + 1]) ||
+ !isASCIIHex(this.input[this.pointer + 2]))) {
+ this.parseError = true;
+ }
+
+ this.buffer += percentEncodeChar(c, isPathPercentEncode);
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse cannot-be-a-base-URL path"] = function parseCannotBeABaseURLPath(c) {
+ if (c === 63) {
+ this.url.query = "";
+ this.state = "query";
+ } else if (c === 35) {
+ this.url.fragment = "";
+ this.state = "fragment";
+ } else {
+ // TODO: Add: not a URL code point
+ if (!isNaN(c) && c !== 37) {
+ this.parseError = true;
+ }
+
+ if (c === 37 &&
+ (!isASCIIHex(this.input[this.pointer + 1]) ||
+ !isASCIIHex(this.input[this.pointer + 2]))) {
+ this.parseError = true;
+ }
+
+ if (!isNaN(c)) {
+ this.url.path[0] = this.url.path[0] + percentEncodeChar(c, isC0ControlPercentEncode);
+ }
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse query"] = function parseQuery(c, cStr) {
+ if (isNaN(c) || (!this.stateOverride && c === 35)) {
+ if (!isSpecial(this.url) || this.url.scheme === "ws" || this.url.scheme === "wss") {
+ this.encodingOverride = "utf-8";
+ }
+
+ const buffer = new Buffer(this.buffer); // TODO: Use encoding override instead
+ for (let i = 0; i < buffer.length; ++i) {
+ if (buffer[i] < 0x21 || buffer[i] > 0x7E || buffer[i] === 0x22 || buffer[i] === 0x23 ||
+ buffer[i] === 0x3C || buffer[i] === 0x3E) {
+ this.url.query += percentEncode(buffer[i]);
+ } else {
+ this.url.query += String.fromCodePoint(buffer[i]);
+ }
+ }
+
+ this.buffer = "";
+ if (c === 35) {
+ this.url.fragment = "";
+ this.state = "fragment";
+ }
+ } else {
+ // TODO: If c is not a URL code point and not "%", parse error.
+ if (c === 37 &&
+ (!isASCIIHex(this.input[this.pointer + 1]) ||
+ !isASCIIHex(this.input[this.pointer + 2]))) {
+ this.parseError = true;
+ }
+
+ this.buffer += cStr;
+ }
+
+ return true;
+};
+
+URLStateMachine.prototype["parse fragment"] = function parseFragment(c) {
+ if (isNaN(c)) { // do nothing
+ } else if (c === 0x0) {
+ this.parseError = true;
+ } else {
+ // TODO: If c is not a URL code point and not "%", parse error.
+ if (c === 37 &&
+ (!isASCIIHex(this.input[this.pointer + 1]) ||
+ !isASCIIHex(this.input[this.pointer + 2]))) {
+ this.parseError = true;
+ }
+
+ this.url.fragment += percentEncodeChar(c, isC0ControlPercentEncode);
+ }
+
+ return true;
+};
+
+function serializeURL(url, excludeFragment) {
+ let output = url.scheme + ":";
+ if (url.host !== null) {
+ output += "//";
+
+ if (url.username !== "" || url.password !== "") {
+ output += url.username;
+ if (url.password !== "") {
+ output += ":" + url.password;
+ }
+ output += "@";
+ }
+
+ output += serializeHost(url.host);
+
+ if (url.port !== null) {
+ output += ":" + url.port;
+ }
+ } else if (url.host === null && url.scheme === "file") {
+ output += "//";
+ }
+
+ if (url.cannotBeABaseURL) {
+ output += url.path[0];
+ } else {
+ for (const string of url.path) {
+ output += "/" + string;
+ }
+ }
+
+ if (url.query !== null) {
+ output += "?" + url.query;
+ }
+
+ if (!excludeFragment && url.fragment !== null) {
+ output += "#" + url.fragment;
+ }
+
+ return output;
+}
+
+function serializeOrigin(tuple) {
+ let result = tuple.scheme + "://";
+ result += serializeHost(tuple.host);
+
+ if (tuple.port !== null) {
+ result += ":" + tuple.port;
+ }
+
+ return result;
+}
+
+module.exports.serializeURL = serializeURL;
+
+module.exports.serializeURLOrigin = function (url) {
+ // https://url.spec.whatwg.org/#concept-url-origin
+ switch (url.scheme) {
+ case "blob":
+ try {
+ return module.exports.serializeURLOrigin(module.exports.parseURL(url.path[0]));
+ } catch (e) {
+ // serializing an opaque origin returns "null"
+ return "null";
+ }
+ case "ftp":
+ case "gopher":
+ case "http":
+ case "https":
+ case "ws":
+ case "wss":
+ return serializeOrigin({
+ scheme: url.scheme,
+ host: url.host,
+ port: url.port
+ });
+ case "file":
+ // spec says "exercise to the reader", chrome says "file://"
+ return "file://";
+ default:
+ // serializing an opaque origin returns "null"
+ return "null";
+ }
+};
+
+module.exports.basicURLParse = function (input, options) {
+ if (options === undefined) {
+ options = {};
+ }
+
+ const usm = new URLStateMachine(input, options.baseURL, options.encodingOverride, options.url, options.stateOverride);
+ if (usm.failure) {
+ return "failure";
+ }
+
+ return usm.url;
+};
+
+module.exports.setTheUsername = function (url, username) {
+ url.username = "";
+ const decoded = punycode.ucs2.decode(username);
+ for (let i = 0; i < decoded.length; ++i) {
+ url.username += percentEncodeChar(decoded[i], isUserinfoPercentEncode);
+ }
+};
+
+module.exports.setThePassword = function (url, password) {
+ url.password = "";
+ const decoded = punycode.ucs2.decode(password);
+ for (let i = 0; i < decoded.length; ++i) {
+ url.password += percentEncodeChar(decoded[i], isUserinfoPercentEncode);
+ }
+};
+
+module.exports.serializeHost = serializeHost;
+
+module.exports.cannotHaveAUsernamePasswordPort = cannotHaveAUsernamePasswordPort;
+
+module.exports.serializeInteger = function (integer) {
+ return String(integer);
+};
+
+module.exports.parseURL = function (input, options) {
+ if (options === undefined) {
+ options = {};
+ }
+
+ // We don't handle blobs, so this just delegates:
+ return module.exports.basicURLParse(input, { baseURL: options.baseURL, encodingOverride: options.encodingOverride });
+};
diff --git a/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/utils.js b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/utils.js
new file mode 100644
index 0000000..a562009
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/whatwg-url/lib/utils.js
@@ -0,0 +1,20 @@
+"use strict";
+
+module.exports.mixin = function mixin(target, source) {
+ const keys = Object.getOwnPropertyNames(source);
+ for (let i = 0; i < keys.length; ++i) {
+ Object.defineProperty(target, keys[i], Object.getOwnPropertyDescriptor(source, keys[i]));
+ }
+};
+
+module.exports.wrapperSymbol = Symbol("wrapper");
+module.exports.implSymbol = Symbol("impl");
+
+module.exports.wrapperForImpl = function (impl) {
+ return impl[module.exports.wrapperSymbol];
+};
+
+module.exports.implForWrapper = function (wrapper) {
+ return wrapper[module.exports.implSymbol];
+};
+
diff --git a/backend/node_modules/node-fetch/node_modules/whatwg-url/package.json b/backend/node_modules/node-fetch/node_modules/whatwg-url/package.json
new file mode 100644
index 0000000..b2f3c76
--- /dev/null
+++ b/backend/node_modules/node-fetch/node_modules/whatwg-url/package.json
@@ -0,0 +1,67 @@
+{
+ "_from": "whatwg-url@^5.0.0",
+ "_id": "whatwg-url@5.0.0",
+ "_inBundle": false,
+ "_integrity": "sha1-lmRU6HZUYuN2RNNib2dCzotwll0=",
+ "_location": "/node-fetch/whatwg-url",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "whatwg-url@^5.0.0",
+ "name": "whatwg-url",
+ "escapedName": "whatwg-url",
+ "rawSpec": "^5.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^5.0.0"
+ },
+ "_requiredBy": [
+ "/node-fetch"
+ ],
+ "_resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+ "_shasum": "966454e8765462e37644d3626f6742ce8b70965d",
+ "_spec": "whatwg-url@^5.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/node-fetch",
+ "author": {
+ "name": "Sebastian Mayr",
+ "email": "github@smayr.name"
+ },
+ "bugs": {
+ "url": "https://github.com/jsdom/whatwg-url/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "tr46": "~0.0.3",
+ "webidl-conversions": "^3.0.0"
+ },
+ "deprecated": false,
+ "description": "An implementation of the WHATWG URL Standard's URL API and parsing machinery",
+ "devDependencies": {
+ "eslint": "^2.6.0",
+ "istanbul": "~0.4.3",
+ "mocha": "^2.2.4",
+ "recast": "~0.10.29",
+ "request": "^2.55.0",
+ "webidl2js": "^3.0.2"
+ },
+ "files": [
+ "lib/"
+ ],
+ "homepage": "https://github.com/jsdom/whatwg-url#readme",
+ "license": "MIT",
+ "main": "lib/public-api.js",
+ "name": "whatwg-url",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/jsdom/whatwg-url.git"
+ },
+ "scripts": {
+ "build": "node scripts/transform.js && node scripts/convert-idl.js",
+ "coverage": "istanbul cover node_modules/mocha/bin/_mocha",
+ "lint": "eslint .",
+ "prepublish": "npm run build",
+ "pretest": "node scripts/get-latest-platform-tests.js && npm run build",
+ "test": "mocha"
+ },
+ "version": "5.0.0"
+}
diff --git a/backend/node_modules/node-fetch/package.json b/backend/node_modules/node-fetch/package.json
new file mode 100644
index 0000000..8291427
--- /dev/null
+++ b/backend/node_modules/node-fetch/package.json
@@ -0,0 +1,95 @@
+{
+ "_from": "node-fetch@^2.6.5",
+ "_id": "node-fetch@2.6.6",
+ "_inBundle": false,
+ "_integrity": "sha512-Z8/6vRlTUChSdIgMa51jxQ4lrw/Jy5SOW10ObaA47/RElsAN2c5Pn8bTgFGWn/ibwzXTE8qwr1Yzx28vsecXEA==",
+ "_location": "/node-fetch",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "node-fetch@^2.6.5",
+ "name": "node-fetch",
+ "escapedName": "node-fetch",
+ "rawSpec": "^2.6.5",
+ "saveSpec": null,
+ "fetchSpec": "^2.6.5"
+ },
+ "_requiredBy": [
+ "/@mapbox/node-pre-gyp"
+ ],
+ "_resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.6.tgz",
+ "_shasum": "1751a7c01834e8e1697758732e9efb6eeadfaf89",
+ "_spec": "node-fetch@^2.6.5",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/@mapbox/node-pre-gyp",
+ "author": {
+ "name": "David Frank"
+ },
+ "browser": "./browser.js",
+ "bugs": {
+ "url": "https://github.com/bitinn/node-fetch/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "whatwg-url": "^5.0.0"
+ },
+ "deprecated": false,
+ "description": "A light-weight module that brings window.fetch to node.js",
+ "devDependencies": {
+ "@ungap/url-search-params": "^0.1.2",
+ "abort-controller": "^1.1.0",
+ "abortcontroller-polyfill": "^1.3.0",
+ "babel-core": "^6.26.3",
+ "babel-plugin-istanbul": "^4.1.6",
+ "babel-preset-env": "^1.6.1",
+ "babel-register": "^6.16.3",
+ "chai": "^3.5.0",
+ "chai-as-promised": "^7.1.1",
+ "chai-iterator": "^1.1.1",
+ "chai-string": "~1.3.0",
+ "codecov": "3.3.0",
+ "cross-env": "^5.2.0",
+ "form-data": "^2.3.3",
+ "is-builtin-module": "^1.0.0",
+ "mocha": "^5.0.0",
+ "nyc": "11.9.0",
+ "parted": "^0.1.1",
+ "promise": "^8.0.3",
+ "resumer": "0.0.0",
+ "rollup": "^0.63.4",
+ "rollup-plugin-babel": "^3.0.7",
+ "string-to-arraybuffer": "^1.0.2",
+ "teeny-request": "3.7.0"
+ },
+ "engines": {
+ "node": "4.x || >=6.0.0"
+ },
+ "files": [
+ "lib/index.js",
+ "lib/index.mjs",
+ "lib/index.es.js",
+ "browser.js"
+ ],
+ "homepage": "https://github.com/bitinn/node-fetch",
+ "keywords": [
+ "fetch",
+ "http",
+ "promise"
+ ],
+ "license": "MIT",
+ "main": "lib/index.js",
+ "module": "lib/index.mjs",
+ "name": "node-fetch",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/bitinn/node-fetch.git"
+ },
+ "scripts": {
+ "build": "cross-env BABEL_ENV=rollup rollup -c",
+ "coverage": "cross-env BABEL_ENV=coverage nyc --reporter json --reporter text mocha -R spec test/test.js && codecov -f coverage/coverage-final.json",
+ "prepare": "npm run build",
+ "report": "cross-env BABEL_ENV=coverage nyc --reporter lcov --reporter text mocha -R spec test/test.js",
+ "test": "cross-env BABEL_ENV=test mocha --require babel-register --throw-deprecation test/test.js"
+ },
+ "version": "2.6.6"
+}
diff --git a/backend/node_modules/npmlog/LICENSE.md b/backend/node_modules/npmlog/LICENSE.md
new file mode 100644
index 0000000..5fc208f
--- /dev/null
+++ b/backend/node_modules/npmlog/LICENSE.md
@@ -0,0 +1,20 @@
+<!-- This file is automatically added by @npmcli/template-oss. Do not edit. -->
+
+ISC License
+
+Copyright npm, Inc.
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NPM DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL NPM BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
+USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/npmlog/README.md b/backend/node_modules/npmlog/README.md
new file mode 100644
index 0000000..268a4af
--- /dev/null
+++ b/backend/node_modules/npmlog/README.md
@@ -0,0 +1,216 @@
+# npmlog
+
+The logger util that npm uses.
+
+This logger is very basic. It does the logging for npm. It supports
+custom levels and colored output.
+
+By default, logs are written to stderr. If you want to send log messages
+to outputs other than streams, then you can change the `log.stream`
+member, or you can just listen to the events that it emits, and do
+whatever you want with them.
+
+# Installation
+
+```console
+npm install npmlog --save
+```
+
+# Basic Usage
+
+```javascript
+var log = require('npmlog')
+
+// additional stuff ---------------------------+
+// message ----------+ |
+// prefix ----+ | |
+// level -+ | | |
+// v v v v
+ log.info('fyi', 'I have a kitty cat: %j', myKittyCat)
+```
+
+## log.level
+
+* {String}
+
+The level to display logs at. Any logs at or above this level will be
+displayed. The special level `silent` will prevent anything from being
+displayed ever.
+
+## log.record
+
+* {Array}
+
+An array of all the log messages that have been entered.
+
+## log.maxRecordSize
+
+* {Number}
+
+The maximum number of records to keep. If log.record gets bigger than
+10% over this value, then it is sliced down to 90% of this value.
+
+The reason for the 10% window is so that it doesn't have to resize a
+large array on every log entry.
+
+## log.prefixStyle
+
+* {Object}
+
+A style object that specifies how prefixes are styled. (See below)
+
+## log.headingStyle
+
+* {Object}
+
+A style object that specifies how the heading is styled. (See below)
+
+## log.heading
+
+* {String} Default: ""
+
+If set, a heading that is printed at the start of every line.
+
+## log.stream
+
+* {Stream} Default: `process.stderr`
+
+The stream where output is written.
+
+## log.enableColor()
+
+Force colors to be used on all messages, regardless of the output
+stream.
+
+## log.disableColor()
+
+Disable colors on all messages.
+
+## log.enableProgress()
+
+Enable the display of log activity spinner and progress bar
+
+## log.disableProgress()
+
+Disable the display of a progress bar
+
+## log.enableUnicode()
+
+Force the unicode theme to be used for the progress bar.
+
+## log.disableUnicode()
+
+Disable the use of unicode in the progress bar.
+
+## log.setGaugeTemplate(template)
+
+Set a template for outputting the progress bar. See the [gauge documentation] for details.
+
+[gauge documentation]: https://npmjs.com/package/gauge
+
+## log.setGaugeThemeset(themes)
+
+Select a themeset to pick themes from for the progress bar. See the [gauge documentation] for details.
+
+## log.pause()
+
+Stop emitting messages to the stream, but do not drop them.
+
+## log.resume()
+
+Emit all buffered messages that were written while paused.
+
+## log.log(level, prefix, message, ...)
+
+* `level` {String} The level to emit the message at
+* `prefix` {String} A string prefix. Set to "" to skip.
+* `message...` Arguments to `util.format`
+
+Emit a log message at the specified level.
+
+## log\[level](prefix, message, ...)
+
+For example,
+
+* log.silly(prefix, message, ...)
+* log.verbose(prefix, message, ...)
+* log.info(prefix, message, ...)
+* log.http(prefix, message, ...)
+* log.warn(prefix, message, ...)
+* log.error(prefix, message, ...)
+
+Like `log.log(level, prefix, message, ...)`. In this way, each level is
+given a shorthand, so you can do `log.info(prefix, message)`.
+
+## log.addLevel(level, n, style, disp)
+
+* `level` {String} Level indicator
+* `n` {Number} The numeric level
+* `style` {Object} Object with fg, bg, inverse, etc.
+* `disp` {String} Optional replacement for `level` in the output.
+
+Sets up a new level with a shorthand function and so forth.
+
+Note that if the number is `Infinity`, then setting the level to that
+will cause all log messages to be suppressed. If the number is
+`-Infinity`, then the only way to show it is to enable all log messages.
+
+## log.newItem(name, todo, weight)
+
+* `name` {String} Optional; progress item name.
+* `todo` {Number} Optional; total amount of work to be done. Default 0.
+* `weight` {Number} Optional; the weight of this item relative to others. Default 1.
+
+This adds a new `are-we-there-yet` item tracker to the progress tracker. The
+object returned has the `log[level]` methods but is otherwise an
+`are-we-there-yet` `Tracker` object.
+
+## log.newStream(name, todo, weight)
+
+This adds a new `are-we-there-yet` stream tracker to the progress tracker. The
+object returned has the `log[level]` methods but is otherwise an
+`are-we-there-yet` `TrackerStream` object.
+
+## log.newGroup(name, weight)
+
+This adds a new `are-we-there-yet` tracker group to the progress tracker. The
+object returned has the `log[level]` methods but is otherwise an
+`are-we-there-yet` `TrackerGroup` object.
+
+# Events
+
+Events are all emitted with the message object.
+
+* `log` Emitted for all messages
+* `log.<level>` Emitted for all messages with the `<level>` level.
+* `<prefix>` Messages with prefixes also emit their prefix as an event.
+
+# Style Objects
+
+Style objects can have the following fields:
+
+* `fg` {String} Color for the foreground text
+* `bg` {String} Color for the background
+* `bold`, `inverse`, `underline` {Boolean} Set the associated property
+* `bell` {Boolean} Make a noise (This is pretty annoying, probably.)
+
+# Message Objects
+
+Every log event is emitted with a message object, and the `log.record`
+list contains all of them that have been created. They have the
+following fields:
+
+* `id` {Number}
+* `level` {String}
+* `prefix` {String}
+* `message` {String} Result of `util.format()`
+* `messageRaw` {Array} Arguments to `util.format()`
+
+# Blocking TTYs
+
+We use [`set-blocking`](https://npmjs.com/package/set-blocking) to set
+stderr and stdout blocking if they are tty's and have the setBlocking call.
+This is a work around for an issue in early versions of Node.js 6.x, which
+made stderr and stdout non-blocking on OSX. (They are always blocking
+Windows and were never blocking on Linux.) `npmlog` needs them to be blocking
+so that it can allow output to stdout and stderr to be interlaced.
diff --git a/backend/node_modules/npmlog/lib/log.js b/backend/node_modules/npmlog/lib/log.js
new file mode 100644
index 0000000..aec98d7
--- /dev/null
+++ b/backend/node_modules/npmlog/lib/log.js
@@ -0,0 +1,403 @@
+'use strict'
+var Progress = require('are-we-there-yet')
+var Gauge = require('gauge')
+var EE = require('events').EventEmitter
+var log = exports = module.exports = new EE()
+var util = require('util')
+
+var setBlocking = require('set-blocking')
+var consoleControl = require('console-control-strings')
+
+setBlocking(true)
+var stream = process.stderr
+Object.defineProperty(log, 'stream', {
+ set: function (newStream) {
+ stream = newStream
+ if (this.gauge) {
+ this.gauge.setWriteTo(stream, stream)
+ }
+ },
+ get: function () {
+ return stream
+ },
+})
+
+// by default, decide based on tty-ness.
+var colorEnabled
+log.useColor = function () {
+ return colorEnabled != null ? colorEnabled : stream.isTTY
+}
+
+log.enableColor = function () {
+ colorEnabled = true
+ this.gauge.setTheme({ hasColor: colorEnabled, hasUnicode: unicodeEnabled })
+}
+log.disableColor = function () {
+ colorEnabled = false
+ this.gauge.setTheme({ hasColor: colorEnabled, hasUnicode: unicodeEnabled })
+}
+
+// default level
+log.level = 'info'
+
+log.gauge = new Gauge(stream, {
+ enabled: false, // no progress bars unless asked
+ theme: { hasColor: log.useColor() },
+ template: [
+ { type: 'progressbar', length: 20 },
+ { type: 'activityIndicator', kerning: 1, length: 1 },
+ { type: 'section', default: '' },
+ ':',
+ { type: 'logline', kerning: 1, default: '' },
+ ],
+})
+
+log.tracker = new Progress.TrackerGroup()
+
+// we track this separately as we may need to temporarily disable the
+// display of the status bar for our own loggy purposes.
+log.progressEnabled = log.gauge.isEnabled()
+
+var unicodeEnabled
+
+log.enableUnicode = function () {
+ unicodeEnabled = true
+ this.gauge.setTheme({ hasColor: this.useColor(), hasUnicode: unicodeEnabled })
+}
+
+log.disableUnicode = function () {
+ unicodeEnabled = false
+ this.gauge.setTheme({ hasColor: this.useColor(), hasUnicode: unicodeEnabled })
+}
+
+log.setGaugeThemeset = function (themes) {
+ this.gauge.setThemeset(themes)
+}
+
+log.setGaugeTemplate = function (template) {
+ this.gauge.setTemplate(template)
+}
+
+log.enableProgress = function () {
+ if (this.progressEnabled) {
+ return
+ }
+
+ this.progressEnabled = true
+ this.tracker.on('change', this.showProgress)
+ if (this._paused) {
+ return
+ }
+
+ this.gauge.enable()
+}
+
+log.disableProgress = function () {
+ if (!this.progressEnabled) {
+ return
+ }
+ this.progressEnabled = false
+ this.tracker.removeListener('change', this.showProgress)
+ this.gauge.disable()
+}
+
+var trackerConstructors = ['newGroup', 'newItem', 'newStream']
+
+var mixinLog = function (tracker) {
+ // mixin the public methods from log into the tracker
+ // (except: conflicts and one's we handle specially)
+ Object.keys(log).forEach(function (P) {
+ if (P[0] === '_') {
+ return
+ }
+
+ if (trackerConstructors.filter(function (C) {
+ return C === P
+ }).length) {
+ return
+ }
+
+ if (tracker[P]) {
+ return
+ }
+
+ if (typeof log[P] !== 'function') {
+ return
+ }
+
+ var func = log[P]
+ tracker[P] = function () {
+ return func.apply(log, arguments)
+ }
+ })
+ // if the new tracker is a group, make sure any subtrackers get
+ // mixed in too
+ if (tracker instanceof Progress.TrackerGroup) {
+ trackerConstructors.forEach(function (C) {
+ var func = tracker[C]
+ tracker[C] = function () {
+ return mixinLog(func.apply(tracker, arguments))
+ }
+ })
+ }
+ return tracker
+}
+
+// Add tracker constructors to the top level log object
+trackerConstructors.forEach(function (C) {
+ log[C] = function () {
+ return mixinLog(this.tracker[C].apply(this.tracker, arguments))
+ }
+})
+
+log.clearProgress = function (cb) {
+ if (!this.progressEnabled) {
+ return cb && process.nextTick(cb)
+ }
+
+ this.gauge.hide(cb)
+}
+
+log.showProgress = function (name, completed) {
+ if (!this.progressEnabled) {
+ return
+ }
+
+ var values = {}
+ if (name) {
+ values.section = name
+ }
+
+ var last = log.record[log.record.length - 1]
+ if (last) {
+ values.subsection = last.prefix
+ var disp = log.disp[last.level] || last.level
+ var logline = this._format(disp, log.style[last.level])
+ if (last.prefix) {
+ logline += ' ' + this._format(last.prefix, this.prefixStyle)
+ }
+
+ logline += ' ' + last.message.split(/\r?\n/)[0]
+ values.logline = logline
+ }
+ values.completed = completed || this.tracker.completed()
+ this.gauge.show(values)
+}.bind(log) // bind for use in tracker's on-change listener
+
+// temporarily stop emitting, but don't drop
+log.pause = function () {
+ this._paused = true
+ if (this.progressEnabled) {
+ this.gauge.disable()
+ }
+}
+
+log.resume = function () {
+ if (!this._paused) {
+ return
+ }
+
+ this._paused = false
+
+ var b = this._buffer
+ this._buffer = []
+ b.forEach(function (m) {
+ this.emitLog(m)
+ }, this)
+ if (this.progressEnabled) {
+ this.gauge.enable()
+ }
+}
+
+log._buffer = []
+
+var id = 0
+log.record = []
+log.maxRecordSize = 10000
+log.log = function (lvl, prefix, message) {
+ var l = this.levels[lvl]
+ if (l === undefined) {
+ return this.emit('error', new Error(util.format(
+ 'Undefined log level: %j', lvl)))
+ }
+
+ var a = new Array(arguments.length - 2)
+ var stack = null
+ for (var i = 2; i < arguments.length; i++) {
+ var arg = a[i - 2] = arguments[i]
+
+ // resolve stack traces to a plain string.
+ if (typeof arg === 'object' && arg instanceof Error && arg.stack) {
+ Object.defineProperty(arg, 'stack', {
+ value: stack = arg.stack + '',
+ enumerable: true,
+ writable: true,
+ })
+ }
+ }
+ if (stack) {
+ a.unshift(stack + '\n')
+ }
+ message = util.format.apply(util, a)
+
+ var m = {
+ id: id++,
+ level: lvl,
+ prefix: String(prefix || ''),
+ message: message,
+ messageRaw: a,
+ }
+
+ this.emit('log', m)
+ this.emit('log.' + lvl, m)
+ if (m.prefix) {
+ this.emit(m.prefix, m)
+ }
+
+ this.record.push(m)
+ var mrs = this.maxRecordSize
+ var n = this.record.length - mrs
+ if (n > mrs / 10) {
+ var newSize = Math.floor(mrs * 0.9)
+ this.record = this.record.slice(-1 * newSize)
+ }
+
+ this.emitLog(m)
+}.bind(log)
+
+log.emitLog = function (m) {
+ if (this._paused) {
+ this._buffer.push(m)
+ return
+ }
+ if (this.progressEnabled) {
+ this.gauge.pulse(m.prefix)
+ }
+
+ var l = this.levels[m.level]
+ if (l === undefined) {
+ return
+ }
+
+ if (l < this.levels[this.level]) {
+ return
+ }
+
+ if (l > 0 && !isFinite(l)) {
+ return
+ }
+
+ // If 'disp' is null or undefined, use the lvl as a default
+ // Allows: '', 0 as valid disp
+ var disp = log.disp[m.level] != null ? log.disp[m.level] : m.level
+ this.clearProgress()
+ m.message.split(/\r?\n/).forEach(function (line) {
+ if (this.heading) {
+ this.write(this.heading, this.headingStyle)
+ this.write(' ')
+ }
+ this.write(disp, log.style[m.level])
+ var p = m.prefix || ''
+ if (p) {
+ this.write(' ')
+ }
+
+ this.write(p, this.prefixStyle)
+ this.write(' ' + line + '\n')
+ }, this)
+ this.showProgress()
+}
+
+log._format = function (msg, style) {
+ if (!stream) {
+ return
+ }
+
+ var output = ''
+ if (this.useColor()) {
+ style = style || {}
+ var settings = []
+ if (style.fg) {
+ settings.push(style.fg)
+ }
+
+ if (style.bg) {
+ settings.push('bg' + style.bg[0].toUpperCase() + style.bg.slice(1))
+ }
+
+ if (style.bold) {
+ settings.push('bold')
+ }
+
+ if (style.underline) {
+ settings.push('underline')
+ }
+
+ if (style.inverse) {
+ settings.push('inverse')
+ }
+
+ if (settings.length) {
+ output += consoleControl.color(settings)
+ }
+
+ if (style.beep) {
+ output += consoleControl.beep()
+ }
+ }
+ output += msg
+ if (this.useColor()) {
+ output += consoleControl.color('reset')
+ }
+
+ return output
+}
+
+log.write = function (msg, style) {
+ if (!stream) {
+ return
+ }
+
+ stream.write(this._format(msg, style))
+}
+
+log.addLevel = function (lvl, n, style, disp) {
+ // If 'disp' is null or undefined, use the lvl as a default
+ if (disp == null) {
+ disp = lvl
+ }
+
+ this.levels[lvl] = n
+ this.style[lvl] = style
+ if (!this[lvl]) {
+ this[lvl] = function () {
+ var a = new Array(arguments.length + 1)
+ a[0] = lvl
+ for (var i = 0; i < arguments.length; i++) {
+ a[i + 1] = arguments[i]
+ }
+
+ return this.log.apply(this, a)
+ }.bind(this)
+ }
+ this.disp[lvl] = disp
+}
+
+log.prefixStyle = { fg: 'magenta' }
+log.headingStyle = { fg: 'white', bg: 'black' }
+
+log.style = {}
+log.levels = {}
+log.disp = {}
+log.addLevel('silly', -Infinity, { inverse: true }, 'sill')
+log.addLevel('verbose', 1000, { fg: 'blue', bg: 'black' }, 'verb')
+log.addLevel('info', 2000, { fg: 'green' })
+log.addLevel('timing', 2500, { fg: 'green', bg: 'black' })
+log.addLevel('http', 3000, { fg: 'green', bg: 'black' })
+log.addLevel('notice', 3500, { fg: 'blue', bg: 'black' })
+log.addLevel('warn', 4000, { fg: 'black', bg: 'yellow' }, 'WARN')
+log.addLevel('error', 5000, { fg: 'red', bg: 'black' }, 'ERR!')
+log.addLevel('silent', Infinity)
+
+// allow 'error' prefix
+log.on('error', function () {})
diff --git a/backend/node_modules/npmlog/package.json b/backend/node_modules/npmlog/package.json
new file mode 100644
index 0000000..b92162b
--- /dev/null
+++ b/backend/node_modules/npmlog/package.json
@@ -0,0 +1,77 @@
+{
+ "_from": "npmlog@^6.0.0",
+ "_id": "npmlog@6.0.0",
+ "_inBundle": false,
+ "_integrity": "sha512-03ppFRGlsyUaQFbGC2C8QWJN/C/K7PsfyD9aQdhVKAQIH4sQBc8WASqFBP7O+Ut4d2oo5LoeoboB3cGdBZSp6Q==",
+ "_location": "/npmlog",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "npmlog@^6.0.0",
+ "name": "npmlog",
+ "escapedName": "npmlog",
+ "rawSpec": "^6.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^6.0.0"
+ },
+ "_requiredBy": [
+ "/@mapbox/node-pre-gyp"
+ ],
+ "_resolved": "https://registry.npmjs.org/npmlog/-/npmlog-6.0.0.tgz",
+ "_shasum": "ba9ef39413c3d936ea91553db7be49c34ad0520c",
+ "_spec": "npmlog@^6.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/@mapbox/node-pre-gyp",
+ "author": {
+ "name": "GitHub Inc."
+ },
+ "bugs": {
+ "url": "https://github.com/npm/npmlog/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "are-we-there-yet": "^2.0.0",
+ "console-control-strings": "^1.1.0",
+ "gauge": "^4.0.0",
+ "set-blocking": "^2.0.0"
+ },
+ "deprecated": false,
+ "description": "logger for npm",
+ "devDependencies": {
+ "@npmcli/template-oss": "^2.3.0",
+ "tap": "^15.0.9"
+ },
+ "engines": {
+ "node": "^12.13.0 || ^14.15.0 || >=16"
+ },
+ "files": [
+ "bin",
+ "lib"
+ ],
+ "homepage": "https://github.com/npm/npmlog#readme",
+ "license": "ISC",
+ "main": "lib/log.js",
+ "name": "npmlog",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/npm/npmlog.git"
+ },
+ "scripts": {
+ "lint": "eslint '**/*.js'",
+ "lintfix": "npm run lint -- --fix",
+ "npmclilint": "npmcli-lint",
+ "postlint": "npm-template-check",
+ "postsnap": "npm run lintfix --",
+ "posttest": "npm run lint",
+ "postversion": "npm publish",
+ "prepublishOnly": "git push origin --follow-tags",
+ "preversion": "npm test",
+ "snap": "tap",
+ "test": "tap"
+ },
+ "tap": {
+ "branches": 95
+ },
+ "templateVersion": "2.3.0",
+ "version": "6.0.0"
+}
diff --git a/backend/node_modules/path-is-absolute/index.js b/backend/node_modules/path-is-absolute/index.js
new file mode 100644
index 0000000..22aa6c3
--- /dev/null
+++ b/backend/node_modules/path-is-absolute/index.js
@@ -0,0 +1,20 @@
+'use strict';
+
+function posix(path) {
+ return path.charAt(0) === '/';
+}
+
+function win32(path) {
+ // https://github.com/nodejs/node/blob/b3fcc245fb25539909ef1d5eaa01dbf92e168633/lib/path.js#L56
+ var splitDeviceRe = /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
+ var result = splitDeviceRe.exec(path);
+ var device = result[1] || '';
+ var isUnc = Boolean(device && device.charAt(1) !== ':');
+
+ // UNC paths are always absolute
+ return Boolean(result[2] || isUnc);
+}
+
+module.exports = process.platform === 'win32' ? win32 : posix;
+module.exports.posix = posix;
+module.exports.win32 = win32;
diff --git a/backend/node_modules/path-is-absolute/license b/backend/node_modules/path-is-absolute/license
new file mode 100644
index 0000000..654d0bf
--- /dev/null
+++ b/backend/node_modules/path-is-absolute/license
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/path-is-absolute/package.json b/backend/node_modules/path-is-absolute/package.json
new file mode 100644
index 0000000..abdb7d3
--- /dev/null
+++ b/backend/node_modules/path-is-absolute/package.json
@@ -0,0 +1,75 @@
+{
+ "_from": "path-is-absolute@^1.0.0",
+ "_id": "path-is-absolute@1.0.1",
+ "_inBundle": false,
+ "_integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
+ "_location": "/path-is-absolute",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "path-is-absolute@^1.0.0",
+ "name": "path-is-absolute",
+ "escapedName": "path-is-absolute",
+ "rawSpec": "^1.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^1.0.0"
+ },
+ "_requiredBy": [
+ "/glob"
+ ],
+ "_resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
+ "_shasum": "174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f",
+ "_spec": "path-is-absolute@^1.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/glob",
+ "author": {
+ "name": "Sindre Sorhus",
+ "email": "sindresorhus@gmail.com",
+ "url": "sindresorhus.com"
+ },
+ "bugs": {
+ "url": "https://github.com/sindresorhus/path-is-absolute/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Node.js 0.12 path.isAbsolute() ponyfill",
+ "devDependencies": {
+ "xo": "^0.16.0"
+ },
+ "engines": {
+ "node": ">=0.10.0"
+ },
+ "files": [
+ "index.js"
+ ],
+ "homepage": "https://github.com/sindresorhus/path-is-absolute#readme",
+ "keywords": [
+ "path",
+ "paths",
+ "file",
+ "dir",
+ "absolute",
+ "isabsolute",
+ "is-absolute",
+ "built-in",
+ "util",
+ "utils",
+ "core",
+ "ponyfill",
+ "polyfill",
+ "shim",
+ "is",
+ "detect",
+ "check"
+ ],
+ "license": "MIT",
+ "name": "path-is-absolute",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/sindresorhus/path-is-absolute.git"
+ },
+ "scripts": {
+ "test": "xo && node test.js"
+ },
+ "version": "1.0.1"
+}
diff --git a/backend/node_modules/path-is-absolute/readme.md b/backend/node_modules/path-is-absolute/readme.md
new file mode 100644
index 0000000..8dbdf5f
--- /dev/null
+++ b/backend/node_modules/path-is-absolute/readme.md
@@ -0,0 +1,59 @@
+# path-is-absolute [](https://travis-ci.org/sindresorhus/path-is-absolute)
+
+> Node.js 0.12 [`path.isAbsolute()`](http://nodejs.org/api/path.html#path_path_isabsolute_path) [ponyfill](https://ponyfill.com)
+
+
+## Install
+
+```
+$ npm install --save path-is-absolute
+```
+
+
+## Usage
+
+```js
+const pathIsAbsolute = require('path-is-absolute');
+
+// Running on Linux
+pathIsAbsolute('/home/foo');
+//=> true
+pathIsAbsolute('C:/Users/foo');
+//=> false
+
+// Running on Windows
+pathIsAbsolute('C:/Users/foo');
+//=> true
+pathIsAbsolute('/home/foo');
+//=> false
+
+// Running on any OS
+pathIsAbsolute.posix('/home/foo');
+//=> true
+pathIsAbsolute.posix('C:/Users/foo');
+//=> false
+pathIsAbsolute.win32('C:/Users/foo');
+//=> true
+pathIsAbsolute.win32('/home/foo');
+//=> false
+```
+
+
+## API
+
+See the [`path.isAbsolute()` docs](http://nodejs.org/api/path.html#path_path_isabsolute_path).
+
+### pathIsAbsolute(path)
+
+### pathIsAbsolute.posix(path)
+
+POSIX specific version.
+
+### pathIsAbsolute.win32(path)
+
+Windows specific version.
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)
diff --git a/backend/node_modules/readable-stream/CONTRIBUTING.md b/backend/node_modules/readable-stream/CONTRIBUTING.md
new file mode 100644
index 0000000..f478d58
--- /dev/null
+++ b/backend/node_modules/readable-stream/CONTRIBUTING.md
@@ -0,0 +1,38 @@
+# Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+* (a) The contribution was created in whole or in part by me and I
+ have the right to submit it under the open source license
+ indicated in the file; or
+
+* (b) The contribution is based upon previous work that, to the best
+ of my knowledge, is covered under an appropriate open source
+ license and I have the right under that license to submit that
+ work with modifications, whether created in whole or in part
+ by me, under the same open source license (unless I am
+ permitted to submit under a different license), as indicated
+ in the file; or
+
+* (c) The contribution was provided directly to me by some other
+ person who certified (a), (b) or (c) and I have not modified
+ it.
+
+* (d) I understand and agree that this project and the contribution
+ are public and that a record of the contribution (including all
+ personal information I submit with it, including my sign-off) is
+ maintained indefinitely and may be redistributed consistent with
+ this project or the open source license(s) involved.
+
+## Moderation Policy
+
+The [Node.js Moderation Policy] applies to this WG.
+
+## Code of Conduct
+
+The [Node.js Code of Conduct][] applies to this WG.
+
+[Node.js Code of Conduct]:
+https://github.com/nodejs/node/blob/master/CODE_OF_CONDUCT.md
+[Node.js Moderation Policy]:
+https://github.com/nodejs/TSC/blob/master/Moderation-Policy.md
diff --git a/backend/node_modules/readable-stream/GOVERNANCE.md b/backend/node_modules/readable-stream/GOVERNANCE.md
new file mode 100644
index 0000000..16ffb93
--- /dev/null
+++ b/backend/node_modules/readable-stream/GOVERNANCE.md
@@ -0,0 +1,136 @@
+### Streams Working Group
+
+The Node.js Streams is jointly governed by a Working Group
+(WG)
+that is responsible for high-level guidance of the project.
+
+The WG has final authority over this project including:
+
+* Technical direction
+* Project governance and process (including this policy)
+* Contribution policy
+* GitHub repository hosting
+* Conduct guidelines
+* Maintaining the list of additional Collaborators
+
+For the current list of WG members, see the project
+[README.md](./README.md#current-project-team-members).
+
+### Collaborators
+
+The readable-stream GitHub repository is
+maintained by the WG and additional Collaborators who are added by the
+WG on an ongoing basis.
+
+Individuals making significant and valuable contributions are made
+Collaborators and given commit-access to the project. These
+individuals are identified by the WG and their addition as
+Collaborators is discussed during the WG meeting.
+
+_Note:_ If you make a significant contribution and are not considered
+for commit-access log an issue or contact a WG member directly and it
+will be brought up in the next WG meeting.
+
+Modifications of the contents of the readable-stream repository are
+made on
+a collaborative basis. Anybody with a GitHub account may propose a
+modification via pull request and it will be considered by the project
+Collaborators. All pull requests must be reviewed and accepted by a
+Collaborator with sufficient expertise who is able to take full
+responsibility for the change. In the case of pull requests proposed
+by an existing Collaborator, an additional Collaborator is required
+for sign-off. Consensus should be sought if additional Collaborators
+participate and there is disagreement around a particular
+modification. See _Consensus Seeking Process_ below for further detail
+on the consensus model used for governance.
+
+Collaborators may opt to elevate significant or controversial
+modifications, or modifications that have not found consensus to the
+WG for discussion by assigning the ***WG-agenda*** tag to a pull
+request or issue. The WG should serve as the final arbiter where
+required.
+
+For the current list of Collaborators, see the project
+[README.md](./README.md#members).
+
+### WG Membership
+
+WG seats are not time-limited. There is no fixed size of the WG.
+However, the expected target is between 6 and 12, to ensure adequate
+coverage of important areas of expertise, balanced with the ability to
+make decisions efficiently.
+
+There is no specific set of requirements or qualifications for WG
+membership beyond these rules.
+
+The WG may add additional members to the WG by unanimous consensus.
+
+A WG member may be removed from the WG by voluntary resignation, or by
+unanimous consensus of all other WG members.
+
+Changes to WG membership should be posted in the agenda, and may be
+suggested as any other agenda item (see "WG Meetings" below).
+
+If an addition or removal is proposed during a meeting, and the full
+WG is not in attendance to participate, then the addition or removal
+is added to the agenda for the subsequent meeting. This is to ensure
+that all members are given the opportunity to participate in all
+membership decisions. If a WG member is unable to attend a meeting
+where a planned membership decision is being made, then their consent
+is assumed.
+
+No more than 1/3 of the WG members may be affiliated with the same
+employer. If removal or resignation of a WG member, or a change of
+employment by a WG member, creates a situation where more than 1/3 of
+the WG membership shares an employer, then the situation must be
+immediately remedied by the resignation or removal of one or more WG
+members affiliated with the over-represented employer(s).
+
+### WG Meetings
+
+The WG meets occasionally on a Google Hangout On Air. A designated moderator
+approved by the WG runs the meeting. Each meeting should be
+published to YouTube.
+
+Items are added to the WG agenda that are considered contentious or
+are modifications of governance, contribution policy, WG membership,
+or release process.
+
+The intention of the agenda is not to approve or review all patches;
+that should happen continuously on GitHub and be handled by the larger
+group of Collaborators.
+
+Any community member or contributor can ask that something be added to
+the next meeting's agenda by logging a GitHub Issue. Any Collaborator,
+WG member or the moderator can add the item to the agenda by adding
+the ***WG-agenda*** tag to the issue.
+
+Prior to each WG meeting the moderator will share the Agenda with
+members of the WG. WG members can add any items they like to the
+agenda at the beginning of each meeting. The moderator and the WG
+cannot veto or remove items.
+
+The WG may invite persons or representatives from certain projects to
+participate in a non-voting capacity.
+
+The moderator is responsible for summarizing the discussion of each
+agenda item and sends it as a pull request after the meeting.
+
+### Consensus Seeking Process
+
+The WG follows a
+[Consensus
+Seeking](http://en.wikipedia.org/wiki/Consensus-seeking_decision-making)
+decision-making model.
+
+When an agenda item has appeared to reach a consensus the moderator
+will ask "Does anyone object?" as a final call for dissent from the
+consensus.
+
+If an agenda item cannot reach a consensus a WG member can call for
+either a closing vote or a vote to table the issue to the next
+meeting. The call for a vote must be seconded by a majority of the WG
+or else the discussion will continue. Simple majority wins.
+
+Note that changes to WG membership require a majority consensus. See
+"WG Membership" above.
diff --git a/backend/node_modules/readable-stream/LICENSE b/backend/node_modules/readable-stream/LICENSE
new file mode 100644
index 0000000..2873b3b
--- /dev/null
+++ b/backend/node_modules/readable-stream/LICENSE
@@ -0,0 +1,47 @@
+Node.js is licensed for use as follows:
+
+"""
+Copyright Node.js contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
+
+This license applies to parts of Node.js originating from the
+https://github.com/joyent/node repository:
+
+"""
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
diff --git a/backend/node_modules/readable-stream/README.md b/backend/node_modules/readable-stream/README.md
new file mode 100644
index 0000000..6f035ab
--- /dev/null
+++ b/backend/node_modules/readable-stream/README.md
@@ -0,0 +1,106 @@
+# readable-stream
+
+***Node.js core streams for userland*** [](https://travis-ci.com/nodejs/readable-stream)
+
+
+[](https://nodei.co/npm/readable-stream/)
+[](https://nodei.co/npm/readable-stream/)
+
+
+[](https://saucelabs.com/u/readabe-stream)
+
+```bash
+npm install --save readable-stream
+```
+
+This package is a mirror of the streams implementations in Node.js.
+
+Full documentation may be found on the [Node.js website](https://nodejs.org/dist/v10.19.0/docs/api/stream.html).
+
+If you want to guarantee a stable streams base, regardless of what version of
+Node you, or the users of your libraries are using, use **readable-stream** *only* and avoid the *"stream"* module in Node-core, for background see [this blogpost](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html).
+
+As of version 2.0.0 **readable-stream** uses semantic versioning.
+
+## Version 3.x.x
+
+v3.x.x of `readable-stream` is a cut from Node 10. This version supports Node 6, 8, and 10, as well as evergreen browsers, IE 11 and latest Safari. The breaking changes introduced by v3 are composed by the combined breaking changes in [Node v9](https://nodejs.org/en/blog/release/v9.0.0/) and [Node v10](https://nodejs.org/en/blog/release/v10.0.0/), as follows:
+
+1. Error codes: https://github.com/nodejs/node/pull/13310,
+ https://github.com/nodejs/node/pull/13291,
+ https://github.com/nodejs/node/pull/16589,
+ https://github.com/nodejs/node/pull/15042,
+ https://github.com/nodejs/node/pull/15665,
+ https://github.com/nodejs/readable-stream/pull/344
+2. 'readable' have precedence over flowing
+ https://github.com/nodejs/node/pull/18994
+3. make virtual methods errors consistent
+ https://github.com/nodejs/node/pull/18813
+4. updated streams error handling
+ https://github.com/nodejs/node/pull/18438
+5. writable.end should return this.
+ https://github.com/nodejs/node/pull/18780
+6. readable continues to read when push('')
+ https://github.com/nodejs/node/pull/18211
+7. add custom inspect to BufferList
+ https://github.com/nodejs/node/pull/17907
+8. always defer 'readable' with nextTick
+ https://github.com/nodejs/node/pull/17979
+
+## Version 2.x.x
+v2.x.x of `readable-stream` is a cut of the stream module from Node 8 (there have been no semver-major changes from Node 4 to 8). This version supports all Node.js versions from 0.8, as well as evergreen browsers and IE 10 & 11.
+
+### Big Thanks
+
+Cross-browser Testing Platform and Open Source <3 Provided by [Sauce Labs][sauce]
+
+# Usage
+
+You can swap your `require('stream')` with `require('readable-stream')`
+without any changes, if you are just using one of the main classes and
+functions.
+
+```js
+const {
+ Readable,
+ Writable,
+ Transform,
+ Duplex,
+ pipeline,
+ finished
+} = require('readable-stream')
+````
+
+Note that `require('stream')` will return `Stream`, while
+`require('readable-stream')` will return `Readable`. We discourage using
+whatever is exported directly, but rather use one of the properties as
+shown in the example above.
+
+# Streams Working Group
+
+`readable-stream` is maintained by the Streams Working Group, which
+oversees the development and maintenance of the Streams API within
+Node.js. The responsibilities of the Streams Working Group include:
+
+* Addressing stream issues on the Node.js issue tracker.
+* Authoring and editing stream documentation within the Node.js project.
+* Reviewing changes to stream subclasses within the Node.js project.
+* Redirecting changes to streams from the Node.js project to this
+ project.
+* Assisting in the implementation of stream providers within Node.js.
+* Recommending versions of `readable-stream` to be included in Node.js.
+* Messaging about the future of streams to give the community advance
+ notice of changes.
+
+<a name="members"></a>
+## Team Members
+
+* **Calvin Metcalf** ([@calvinmetcalf](https://github.com/calvinmetcalf)) <calvin.metcalf@gmail.com>
+ - Release GPG key: F3EF5F62A87FC27A22E643F714CE4FF5015AA242
+* **Mathias Buus** ([@mafintosh](https://github.com/mafintosh)) <mathiasbuus@gmail.com>
+* **Matteo Collina** ([@mcollina](https://github.com/mcollina)) <matteo.collina@gmail.com>
+ - Release GPG key: 3ABC01543F22DD2239285CDD818674489FBC127E
+* **Irina Shestak** ([@lrlna](https://github.com/lrlna)) <shestak.irina@gmail.com>
+* **Yoshua Wyuts** ([@yoshuawuyts](https://github.com/yoshuawuyts)) <yoshuawuyts@gmail.com>
+
+[sauce]: https://saucelabs.com
diff --git a/backend/node_modules/readable-stream/errors-browser.js b/backend/node_modules/readable-stream/errors-browser.js
new file mode 100644
index 0000000..fb8e73e
--- /dev/null
+++ b/backend/node_modules/readable-stream/errors-browser.js
@@ -0,0 +1,127 @@
+'use strict';
+
+function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
+
+var codes = {};
+
+function createErrorType(code, message, Base) {
+ if (!Base) {
+ Base = Error;
+ }
+
+ function getMessage(arg1, arg2, arg3) {
+ if (typeof message === 'string') {
+ return message;
+ } else {
+ return message(arg1, arg2, arg3);
+ }
+ }
+
+ var NodeError =
+ /*#__PURE__*/
+ function (_Base) {
+ _inheritsLoose(NodeError, _Base);
+
+ function NodeError(arg1, arg2, arg3) {
+ return _Base.call(this, getMessage(arg1, arg2, arg3)) || this;
+ }
+
+ return NodeError;
+ }(Base);
+
+ NodeError.prototype.name = Base.name;
+ NodeError.prototype.code = code;
+ codes[code] = NodeError;
+} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js
+
+
+function oneOf(expected, thing) {
+ if (Array.isArray(expected)) {
+ var len = expected.length;
+ expected = expected.map(function (i) {
+ return String(i);
+ });
+
+ if (len > 2) {
+ return "one of ".concat(thing, " ").concat(expected.slice(0, len - 1).join(', '), ", or ") + expected[len - 1];
+ } else if (len === 2) {
+ return "one of ".concat(thing, " ").concat(expected[0], " or ").concat(expected[1]);
+ } else {
+ return "of ".concat(thing, " ").concat(expected[0]);
+ }
+ } else {
+ return "of ".concat(thing, " ").concat(String(expected));
+ }
+} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
+
+
+function startsWith(str, search, pos) {
+ return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
+} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
+
+
+function endsWith(str, search, this_len) {
+ if (this_len === undefined || this_len > str.length) {
+ this_len = str.length;
+ }
+
+ return str.substring(this_len - search.length, this_len) === search;
+} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
+
+
+function includes(str, search, start) {
+ if (typeof start !== 'number') {
+ start = 0;
+ }
+
+ if (start + search.length > str.length) {
+ return false;
+ } else {
+ return str.indexOf(search, start) !== -1;
+ }
+}
+
+createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
+ return 'The value "' + value + '" is invalid for option "' + name + '"';
+}, TypeError);
+createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
+ // determiner: 'must be' or 'must not be'
+ var determiner;
+
+ if (typeof expected === 'string' && startsWith(expected, 'not ')) {
+ determiner = 'must not be';
+ expected = expected.replace(/^not /, '');
+ } else {
+ determiner = 'must be';
+ }
+
+ var msg;
+
+ if (endsWith(name, ' argument')) {
+ // For cases like 'first argument'
+ msg = "The ".concat(name, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
+ } else {
+ var type = includes(name, '.') ? 'property' : 'argument';
+ msg = "The \"".concat(name, "\" ").concat(type, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
+ }
+
+ msg += ". Received type ".concat(typeof actual);
+ return msg;
+}, TypeError);
+createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
+createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
+ return 'The ' + name + ' method is not implemented';
+});
+createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
+createErrorType('ERR_STREAM_DESTROYED', function (name) {
+ return 'Cannot call ' + name + ' after a stream was destroyed';
+});
+createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
+createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
+createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
+createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
+createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
+ return 'Unknown encoding: ' + arg;
+}, TypeError);
+createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
+module.exports.codes = codes;
diff --git a/backend/node_modules/readable-stream/errors.js b/backend/node_modules/readable-stream/errors.js
new file mode 100644
index 0000000..8471526
--- /dev/null
+++ b/backend/node_modules/readable-stream/errors.js
@@ -0,0 +1,116 @@
+'use strict';
+
+const codes = {};
+
+function createErrorType(code, message, Base) {
+ if (!Base) {
+ Base = Error
+ }
+
+ function getMessage (arg1, arg2, arg3) {
+ if (typeof message === 'string') {
+ return message
+ } else {
+ return message(arg1, arg2, arg3)
+ }
+ }
+
+ class NodeError extends Base {
+ constructor (arg1, arg2, arg3) {
+ super(getMessage(arg1, arg2, arg3));
+ }
+ }
+
+ NodeError.prototype.name = Base.name;
+ NodeError.prototype.code = code;
+
+ codes[code] = NodeError;
+}
+
+// https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js
+function oneOf(expected, thing) {
+ if (Array.isArray(expected)) {
+ const len = expected.length;
+ expected = expected.map((i) => String(i));
+ if (len > 2) {
+ return `one of ${thing} ${expected.slice(0, len - 1).join(', ')}, or ` +
+ expected[len - 1];
+ } else if (len === 2) {
+ return `one of ${thing} ${expected[0]} or ${expected[1]}`;
+ } else {
+ return `of ${thing} ${expected[0]}`;
+ }
+ } else {
+ return `of ${thing} ${String(expected)}`;
+ }
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
+function startsWith(str, search, pos) {
+ return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
+function endsWith(str, search, this_len) {
+ if (this_len === undefined || this_len > str.length) {
+ this_len = str.length;
+ }
+ return str.substring(this_len - search.length, this_len) === search;
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
+function includes(str, search, start) {
+ if (typeof start !== 'number') {
+ start = 0;
+ }
+
+ if (start + search.length > str.length) {
+ return false;
+ } else {
+ return str.indexOf(search, start) !== -1;
+ }
+}
+
+createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
+ return 'The value "' + value + '" is invalid for option "' + name + '"'
+}, TypeError);
+createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
+ // determiner: 'must be' or 'must not be'
+ let determiner;
+ if (typeof expected === 'string' && startsWith(expected, 'not ')) {
+ determiner = 'must not be';
+ expected = expected.replace(/^not /, '');
+ } else {
+ determiner = 'must be';
+ }
+
+ let msg;
+ if (endsWith(name, ' argument')) {
+ // For cases like 'first argument'
+ msg = `The ${name} ${determiner} ${oneOf(expected, 'type')}`;
+ } else {
+ const type = includes(name, '.') ? 'property' : 'argument';
+ msg = `The "${name}" ${type} ${determiner} ${oneOf(expected, 'type')}`;
+ }
+
+ msg += `. Received type ${typeof actual}`;
+ return msg;
+}, TypeError);
+createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
+createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
+ return 'The ' + name + ' method is not implemented'
+});
+createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
+createErrorType('ERR_STREAM_DESTROYED', function (name) {
+ return 'Cannot call ' + name + ' after a stream was destroyed';
+});
+createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
+createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
+createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
+createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
+createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
+ return 'Unknown encoding: ' + arg
+}, TypeError);
+createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
+
+module.exports.codes = codes;
diff --git a/backend/node_modules/readable-stream/experimentalWarning.js b/backend/node_modules/readable-stream/experimentalWarning.js
new file mode 100644
index 0000000..78e8414
--- /dev/null
+++ b/backend/node_modules/readable-stream/experimentalWarning.js
@@ -0,0 +1,17 @@
+'use strict'
+
+var experimentalWarnings = new Set();
+
+function emitExperimentalWarning(feature) {
+ if (experimentalWarnings.has(feature)) return;
+ var msg = feature + ' is an experimental feature. This feature could ' +
+ 'change at any time';
+ experimentalWarnings.add(feature);
+ process.emitWarning(msg, 'ExperimentalWarning');
+}
+
+function noop() {}
+
+module.exports.emitExperimentalWarning = process.emitWarning
+ ? emitExperimentalWarning
+ : noop;
diff --git a/backend/node_modules/readable-stream/lib/_stream_duplex.js b/backend/node_modules/readable-stream/lib/_stream_duplex.js
new file mode 100644
index 0000000..6752519
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_duplex.js
@@ -0,0 +1,139 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
+'use strict';
+/*<replacement>*/
+
+var objectKeys = Object.keys || function (obj) {
+ var keys = [];
+
+ for (var key in obj) {
+ keys.push(key);
+ }
+
+ return keys;
+};
+/*</replacement>*/
+
+
+module.exports = Duplex;
+
+var Readable = require('./_stream_readable');
+
+var Writable = require('./_stream_writable');
+
+require('inherits')(Duplex, Readable);
+
+{
+ // Allow the keys array to be GC'ed.
+ var keys = objectKeys(Writable.prototype);
+
+ for (var v = 0; v < keys.length; v++) {
+ var method = keys[v];
+ if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+ }
+}
+
+function Duplex(options) {
+ if (!(this instanceof Duplex)) return new Duplex(options);
+ Readable.call(this, options);
+ Writable.call(this, options);
+ this.allowHalfOpen = true;
+
+ if (options) {
+ if (options.readable === false) this.readable = false;
+ if (options.writable === false) this.writable = false;
+
+ if (options.allowHalfOpen === false) {
+ this.allowHalfOpen = false;
+ this.once('end', onend);
+ }
+ }
+}
+
+Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._writableState.highWaterMark;
+ }
+});
+Object.defineProperty(Duplex.prototype, 'writableBuffer', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._writableState && this._writableState.getBuffer();
+ }
+});
+Object.defineProperty(Duplex.prototype, 'writableLength', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._writableState.length;
+ }
+}); // the no-half-open enforcer
+
+function onend() {
+ // If the writable side ended, then we're ok.
+ if (this._writableState.ended) return; // no more data can be written.
+ // But allow more writes to happen in this tick.
+
+ process.nextTick(onEndNT, this);
+}
+
+function onEndNT(self) {
+ self.end();
+}
+
+Object.defineProperty(Duplex.prototype, 'destroyed', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ if (this._readableState === undefined || this._writableState === undefined) {
+ return false;
+ }
+
+ return this._readableState.destroyed && this._writableState.destroyed;
+ },
+ set: function set(value) {
+ // we ignore the value if the stream
+ // has not been initialized yet
+ if (this._readableState === undefined || this._writableState === undefined) {
+ return;
+ } // backward compatibility, the user is explicitly
+ // managing destroyed
+
+
+ this._readableState.destroyed = value;
+ this._writableState.destroyed = value;
+ }
+});
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/_stream_passthrough.js b/backend/node_modules/readable-stream/lib/_stream_passthrough.js
new file mode 100644
index 0000000..32e7414
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_passthrough.js
@@ -0,0 +1,39 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
+'use strict';
+
+module.exports = PassThrough;
+
+var Transform = require('./_stream_transform');
+
+require('inherits')(PassThrough, Transform);
+
+function PassThrough(options) {
+ if (!(this instanceof PassThrough)) return new PassThrough(options);
+ Transform.call(this, options);
+}
+
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+ cb(null, chunk);
+};
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/_stream_readable.js b/backend/node_modules/readable-stream/lib/_stream_readable.js
new file mode 100644
index 0000000..192d451
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_readable.js
@@ -0,0 +1,1124 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+'use strict';
+
+module.exports = Readable;
+/*<replacement>*/
+
+var Duplex;
+/*</replacement>*/
+
+Readable.ReadableState = ReadableState;
+/*<replacement>*/
+
+var EE = require('events').EventEmitter;
+
+var EElistenerCount = function EElistenerCount(emitter, type) {
+ return emitter.listeners(type).length;
+};
+/*</replacement>*/
+
+/*<replacement>*/
+
+
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+
+var Buffer = require('buffer').Buffer;
+
+var OurUint8Array = global.Uint8Array || function () {};
+
+function _uint8ArrayToBuffer(chunk) {
+ return Buffer.from(chunk);
+}
+
+function _isUint8Array(obj) {
+ return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+/*<replacement>*/
+
+
+var debugUtil = require('util');
+
+var debug;
+
+if (debugUtil && debugUtil.debuglog) {
+ debug = debugUtil.debuglog('stream');
+} else {
+ debug = function debug() {};
+}
+/*</replacement>*/
+
+
+var BufferList = require('./internal/streams/buffer_list');
+
+var destroyImpl = require('./internal/streams/destroy');
+
+var _require = require('./internal/streams/state'),
+ getHighWaterMark = _require.getHighWaterMark;
+
+var _require$codes = require('../errors').codes,
+ ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
+ ERR_STREAM_PUSH_AFTER_EOF = _require$codes.ERR_STREAM_PUSH_AFTER_EOF,
+ ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
+ ERR_STREAM_UNSHIFT_AFTER_END_EVENT = _require$codes.ERR_STREAM_UNSHIFT_AFTER_END_EVENT; // Lazy loaded to improve the startup performance.
+
+
+var StringDecoder;
+var createReadableStreamAsyncIterator;
+var from;
+
+require('inherits')(Readable, Stream);
+
+var errorOrDestroy = destroyImpl.errorOrDestroy;
+var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
+
+function prependListener(emitter, event, fn) {
+ // Sadly this is not cacheable as some libraries bundle their own
+ // event emitter implementation with them.
+ if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn); // This is a hack to make sure that our error handler is attached before any
+ // userland ones. NEVER DO THIS. This is here only because this code needs
+ // to continue to work with older versions of Node.js that do not include
+ // the prependListener() method. The goal is to eventually remove this hack.
+
+ if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (Array.isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
+}
+
+function ReadableState(options, stream, isDuplex) {
+ Duplex = Duplex || require('./_stream_duplex');
+ options = options || {}; // Duplex streams are both readable and writable, but share
+ // the same options object.
+ // However, some cases require setting options to different
+ // values for the readable and the writable sides of the duplex stream.
+ // These options can be provided separately as readableXXX and writableXXX.
+
+ if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag. Used to make read(n) ignore n and to
+ // make all the buffer merging and length checks go away
+
+ this.objectMode = !!options.objectMode;
+ if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode; // the point at which it stops calling _read() to fill the buffer
+ // Note: 0 is a valid value, means "don't call _read preemptively ever"
+
+ this.highWaterMark = getHighWaterMark(this, options, 'readableHighWaterMark', isDuplex); // A linked list is used to store data chunks instead of an array because the
+ // linked list can remove elements from the beginning faster than
+ // array.shift()
+
+ this.buffer = new BufferList();
+ this.length = 0;
+ this.pipes = null;
+ this.pipesCount = 0;
+ this.flowing = null;
+ this.ended = false;
+ this.endEmitted = false;
+ this.reading = false; // a flag to be able to tell if the event 'readable'/'data' is emitted
+ // immediately, or on a later tick. We set this to true at first, because
+ // any actions that shouldn't happen until "later" should generally also
+ // not happen before the first read call.
+
+ this.sync = true; // whenever we return null, then we set a flag to say
+ // that we're awaiting a 'readable' event emission.
+
+ this.needReadable = false;
+ this.emittedReadable = false;
+ this.readableListening = false;
+ this.resumeScheduled = false;
+ this.paused = true; // Should close be emitted on destroy. Defaults to true.
+
+ this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'end' (and potentially 'finish')
+
+ this.autoDestroy = !!options.autoDestroy; // has it been destroyed
+
+ this.destroyed = false; // Crypto is kind of old and crusty. Historically, its default string
+ // encoding is 'binary' so we have to make this configurable.
+ // Everything else in the universe uses 'utf8', though.
+
+ this.defaultEncoding = options.defaultEncoding || 'utf8'; // the number of writers that are awaiting a drain event in .pipe()s
+
+ this.awaitDrain = 0; // if true, a maybeReadMore has been scheduled
+
+ this.readingMore = false;
+ this.decoder = null;
+ this.encoding = null;
+
+ if (options.encoding) {
+ if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+ this.decoder = new StringDecoder(options.encoding);
+ this.encoding = options.encoding;
+ }
+}
+
+function Readable(options) {
+ Duplex = Duplex || require('./_stream_duplex');
+ if (!(this instanceof Readable)) return new Readable(options); // Checking for a Stream.Duplex instance is faster here instead of inside
+ // the ReadableState constructor, at least with V8 6.5
+
+ var isDuplex = this instanceof Duplex;
+ this._readableState = new ReadableState(options, this, isDuplex); // legacy
+
+ this.readable = true;
+
+ if (options) {
+ if (typeof options.read === 'function') this._read = options.read;
+ if (typeof options.destroy === 'function') this._destroy = options.destroy;
+ }
+
+ Stream.call(this);
+}
+
+Object.defineProperty(Readable.prototype, 'destroyed', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ if (this._readableState === undefined) {
+ return false;
+ }
+
+ return this._readableState.destroyed;
+ },
+ set: function set(value) {
+ // we ignore the value if the stream
+ // has not been initialized yet
+ if (!this._readableState) {
+ return;
+ } // backward compatibility, the user is explicitly
+ // managing destroyed
+
+
+ this._readableState.destroyed = value;
+ }
+});
+Readable.prototype.destroy = destroyImpl.destroy;
+Readable.prototype._undestroy = destroyImpl.undestroy;
+
+Readable.prototype._destroy = function (err, cb) {
+ cb(err);
+}; // Manually shove something into the read() buffer.
+// This returns true if the highWaterMark has not been hit yet,
+// similar to how Writable.write() returns true if you should
+// write() some more.
+
+
+Readable.prototype.push = function (chunk, encoding) {
+ var state = this._readableState;
+ var skipChunkCheck;
+
+ if (!state.objectMode) {
+ if (typeof chunk === 'string') {
+ encoding = encoding || state.defaultEncoding;
+
+ if (encoding !== state.encoding) {
+ chunk = Buffer.from(chunk, encoding);
+ encoding = '';
+ }
+
+ skipChunkCheck = true;
+ }
+ } else {
+ skipChunkCheck = true;
+ }
+
+ return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
+}; // Unshift should *always* be something directly out of read()
+
+
+Readable.prototype.unshift = function (chunk) {
+ return readableAddChunk(this, chunk, null, true, false);
+};
+
+function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
+ debug('readableAddChunk', chunk);
+ var state = stream._readableState;
+
+ if (chunk === null) {
+ state.reading = false;
+ onEofChunk(stream, state);
+ } else {
+ var er;
+ if (!skipChunkCheck) er = chunkInvalid(state, chunk);
+
+ if (er) {
+ errorOrDestroy(stream, er);
+ } else if (state.objectMode || chunk && chunk.length > 0) {
+ if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
+ chunk = _uint8ArrayToBuffer(chunk);
+ }
+
+ if (addToFront) {
+ if (state.endEmitted) errorOrDestroy(stream, new ERR_STREAM_UNSHIFT_AFTER_END_EVENT());else addChunk(stream, state, chunk, true);
+ } else if (state.ended) {
+ errorOrDestroy(stream, new ERR_STREAM_PUSH_AFTER_EOF());
+ } else if (state.destroyed) {
+ return false;
+ } else {
+ state.reading = false;
+
+ if (state.decoder && !encoding) {
+ chunk = state.decoder.write(chunk);
+ if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
+ } else {
+ addChunk(stream, state, chunk, false);
+ }
+ }
+ } else if (!addToFront) {
+ state.reading = false;
+ maybeReadMore(stream, state);
+ }
+ } // We can push more data if we are below the highWaterMark.
+ // Also, if we have no data yet, we can stand some more bytes.
+ // This is to work around cases where hwm=0, such as the repl.
+
+
+ return !state.ended && (state.length < state.highWaterMark || state.length === 0);
+}
+
+function addChunk(stream, state, chunk, addToFront) {
+ if (state.flowing && state.length === 0 && !state.sync) {
+ state.awaitDrain = 0;
+ stream.emit('data', chunk);
+ } else {
+ // update the buffer info.
+ state.length += state.objectMode ? 1 : chunk.length;
+ if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
+ if (state.needReadable) emitReadable(stream);
+ }
+
+ maybeReadMore(stream, state);
+}
+
+function chunkInvalid(state, chunk) {
+ var er;
+
+ if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+ er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer', 'Uint8Array'], chunk);
+ }
+
+ return er;
+}
+
+Readable.prototype.isPaused = function () {
+ return this._readableState.flowing === false;
+}; // backwards compatibility.
+
+
+Readable.prototype.setEncoding = function (enc) {
+ if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
+ var decoder = new StringDecoder(enc);
+ this._readableState.decoder = decoder; // If setEncoding(null), decoder.encoding equals utf8
+
+ this._readableState.encoding = this._readableState.decoder.encoding; // Iterate over current buffer to convert already stored Buffers:
+
+ var p = this._readableState.buffer.head;
+ var content = '';
+
+ while (p !== null) {
+ content += decoder.write(p.data);
+ p = p.next;
+ }
+
+ this._readableState.buffer.clear();
+
+ if (content !== '') this._readableState.buffer.push(content);
+ this._readableState.length = content.length;
+ return this;
+}; // Don't raise the hwm > 1GB
+
+
+var MAX_HWM = 0x40000000;
+
+function computeNewHighWaterMark(n) {
+ if (n >= MAX_HWM) {
+ // TODO(ronag): Throw ERR_VALUE_OUT_OF_RANGE.
+ n = MAX_HWM;
+ } else {
+ // Get the next highest power of 2 to prevent increasing hwm excessively in
+ // tiny amounts
+ n--;
+ n |= n >>> 1;
+ n |= n >>> 2;
+ n |= n >>> 4;
+ n |= n >>> 8;
+ n |= n >>> 16;
+ n++;
+ }
+
+ return n;
+} // This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+
+
+function howMuchToRead(n, state) {
+ if (n <= 0 || state.length === 0 && state.ended) return 0;
+ if (state.objectMode) return 1;
+
+ if (n !== n) {
+ // Only flow one buffer at a time
+ if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
+ } // If we're asking for more than the current hwm, then raise the hwm.
+
+
+ if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
+ if (n <= state.length) return n; // Don't have enough
+
+ if (!state.ended) {
+ state.needReadable = true;
+ return 0;
+ }
+
+ return state.length;
+} // you can override either this method, or the async _read(n) below.
+
+
+Readable.prototype.read = function (n) {
+ debug('read', n);
+ n = parseInt(n, 10);
+ var state = this._readableState;
+ var nOrig = n;
+ if (n !== 0) state.emittedReadable = false; // if we're doing read(0) to trigger a readable event, but we
+ // already have a bunch of data in the buffer, then just trigger
+ // the 'readable' event and move on.
+
+ if (n === 0 && state.needReadable && ((state.highWaterMark !== 0 ? state.length >= state.highWaterMark : state.length > 0) || state.ended)) {
+ debug('read: emitReadable', state.length, state.ended);
+ if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
+ return null;
+ }
+
+ n = howMuchToRead(n, state); // if we've ended, and we're now clear, then finish it up.
+
+ if (n === 0 && state.ended) {
+ if (state.length === 0) endReadable(this);
+ return null;
+ } // All the actual chunk generation logic needs to be
+ // *below* the call to _read. The reason is that in certain
+ // synthetic stream cases, such as passthrough streams, _read
+ // may be a completely synchronous operation which may change
+ // the state of the read buffer, providing enough data when
+ // before there was *not* enough.
+ //
+ // So, the steps are:
+ // 1. Figure out what the state of things will be after we do
+ // a read from the buffer.
+ //
+ // 2. If that resulting state will trigger a _read, then call _read.
+ // Note that this may be asynchronous, or synchronous. Yes, it is
+ // deeply ugly to write APIs this way, but that still doesn't mean
+ // that the Readable class should behave improperly, as streams are
+ // designed to be sync/async agnostic.
+ // Take note if the _read call is sync or async (ie, if the read call
+ // has returned yet), so that we know whether or not it's safe to emit
+ // 'readable' etc.
+ //
+ // 3. Actually pull the requested chunks out of the buffer and return.
+ // if we need a readable event, then we need to do some reading.
+
+
+ var doRead = state.needReadable;
+ debug('need readable', doRead); // if we currently have less than the highWaterMark, then also read some
+
+ if (state.length === 0 || state.length - n < state.highWaterMark) {
+ doRead = true;
+ debug('length less than watermark', doRead);
+ } // however, if we've ended, then there's no point, and if we're already
+ // reading, then it's unnecessary.
+
+
+ if (state.ended || state.reading) {
+ doRead = false;
+ debug('reading or ended', doRead);
+ } else if (doRead) {
+ debug('do read');
+ state.reading = true;
+ state.sync = true; // if the length is currently zero, then we *need* a readable event.
+
+ if (state.length === 0) state.needReadable = true; // call internal read method
+
+ this._read(state.highWaterMark);
+
+ state.sync = false; // If _read pushed data synchronously, then `reading` will be false,
+ // and we need to re-evaluate how much data we can return to the user.
+
+ if (!state.reading) n = howMuchToRead(nOrig, state);
+ }
+
+ var ret;
+ if (n > 0) ret = fromList(n, state);else ret = null;
+
+ if (ret === null) {
+ state.needReadable = state.length <= state.highWaterMark;
+ n = 0;
+ } else {
+ state.length -= n;
+ state.awaitDrain = 0;
+ }
+
+ if (state.length === 0) {
+ // If we have nothing in the buffer, then we want to know
+ // as soon as we *do* get something into the buffer.
+ if (!state.ended) state.needReadable = true; // If we tried to read() past the EOF, then emit end on the next tick.
+
+ if (nOrig !== n && state.ended) endReadable(this);
+ }
+
+ if (ret !== null) this.emit('data', ret);
+ return ret;
+};
+
+function onEofChunk(stream, state) {
+ debug('onEofChunk');
+ if (state.ended) return;
+
+ if (state.decoder) {
+ var chunk = state.decoder.end();
+
+ if (chunk && chunk.length) {
+ state.buffer.push(chunk);
+ state.length += state.objectMode ? 1 : chunk.length;
+ }
+ }
+
+ state.ended = true;
+
+ if (state.sync) {
+ // if we are sync, wait until next tick to emit the data.
+ // Otherwise we risk emitting data in the flow()
+ // the readable code triggers during a read() call
+ emitReadable(stream);
+ } else {
+ // emit 'readable' now to make sure it gets picked up.
+ state.needReadable = false;
+
+ if (!state.emittedReadable) {
+ state.emittedReadable = true;
+ emitReadable_(stream);
+ }
+ }
+} // Don't emit readable right away in sync mode, because this can trigger
+// another read() call => stack overflow. This way, it might trigger
+// a nextTick recursion warning, but that's not so bad.
+
+
+function emitReadable(stream) {
+ var state = stream._readableState;
+ debug('emitReadable', state.needReadable, state.emittedReadable);
+ state.needReadable = false;
+
+ if (!state.emittedReadable) {
+ debug('emitReadable', state.flowing);
+ state.emittedReadable = true;
+ process.nextTick(emitReadable_, stream);
+ }
+}
+
+function emitReadable_(stream) {
+ var state = stream._readableState;
+ debug('emitReadable_', state.destroyed, state.length, state.ended);
+
+ if (!state.destroyed && (state.length || state.ended)) {
+ stream.emit('readable');
+ state.emittedReadable = false;
+ } // The stream needs another readable event if
+ // 1. It is not flowing, as the flow mechanism will take
+ // care of it.
+ // 2. It is not ended.
+ // 3. It is below the highWaterMark, so we can schedule
+ // another readable later.
+
+
+ state.needReadable = !state.flowing && !state.ended && state.length <= state.highWaterMark;
+ flow(stream);
+} // at this point, the user has presumably seen the 'readable' event,
+// and called read() to consume some data. that may have triggered
+// in turn another _read(n) call, in which case reading = true if
+// it's in progress.
+// However, if we're not ended, or reading, and the length < hwm,
+// then go ahead and try to read some more preemptively.
+
+
+function maybeReadMore(stream, state) {
+ if (!state.readingMore) {
+ state.readingMore = true;
+ process.nextTick(maybeReadMore_, stream, state);
+ }
+}
+
+function maybeReadMore_(stream, state) {
+ // Attempt to read more data if we should.
+ //
+ // The conditions for reading more data are (one of):
+ // - Not enough data buffered (state.length < state.highWaterMark). The loop
+ // is responsible for filling the buffer with enough data if such data
+ // is available. If highWaterMark is 0 and we are not in the flowing mode
+ // we should _not_ attempt to buffer any extra data. We'll get more data
+ // when the stream consumer calls read() instead.
+ // - No data in the buffer, and the stream is in flowing mode. In this mode
+ // the loop below is responsible for ensuring read() is called. Failing to
+ // call read here would abort the flow and there's no other mechanism for
+ // continuing the flow if the stream consumer has just subscribed to the
+ // 'data' event.
+ //
+ // In addition to the above conditions to keep reading data, the following
+ // conditions prevent the data from being read:
+ // - The stream has ended (state.ended).
+ // - There is already a pending 'read' operation (state.reading). This is a
+ // case where the the stream has called the implementation defined _read()
+ // method, but they are processing the call asynchronously and have _not_
+ // called push() with new data. In this case we skip performing more
+ // read()s. The execution ends in this method again after the _read() ends
+ // up calling push() with more data.
+ while (!state.reading && !state.ended && (state.length < state.highWaterMark || state.flowing && state.length === 0)) {
+ var len = state.length;
+ debug('maybeReadMore read 0');
+ stream.read(0);
+ if (len === state.length) // didn't get any data, stop spinning.
+ break;
+ }
+
+ state.readingMore = false;
+} // abstract method. to be overridden in specific implementation classes.
+// call cb(er, data) where data is <= n in length.
+// for virtual (non-string, non-buffer) streams, "length" is somewhat
+// arbitrary, and perhaps not very meaningful.
+
+
+Readable.prototype._read = function (n) {
+ errorOrDestroy(this, new ERR_METHOD_NOT_IMPLEMENTED('_read()'));
+};
+
+Readable.prototype.pipe = function (dest, pipeOpts) {
+ var src = this;
+ var state = this._readableState;
+
+ switch (state.pipesCount) {
+ case 0:
+ state.pipes = dest;
+ break;
+
+ case 1:
+ state.pipes = [state.pipes, dest];
+ break;
+
+ default:
+ state.pipes.push(dest);
+ break;
+ }
+
+ state.pipesCount += 1;
+ debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
+ var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
+ var endFn = doEnd ? onend : unpipe;
+ if (state.endEmitted) process.nextTick(endFn);else src.once('end', endFn);
+ dest.on('unpipe', onunpipe);
+
+ function onunpipe(readable, unpipeInfo) {
+ debug('onunpipe');
+
+ if (readable === src) {
+ if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
+ unpipeInfo.hasUnpiped = true;
+ cleanup();
+ }
+ }
+ }
+
+ function onend() {
+ debug('onend');
+ dest.end();
+ } // when the dest drains, it reduces the awaitDrain counter
+ // on the source. This would be more elegant with a .once()
+ // handler in flow(), but adding and removing repeatedly is
+ // too slow.
+
+
+ var ondrain = pipeOnDrain(src);
+ dest.on('drain', ondrain);
+ var cleanedUp = false;
+
+ function cleanup() {
+ debug('cleanup'); // cleanup event handlers once the pipe is broken
+
+ dest.removeListener('close', onclose);
+ dest.removeListener('finish', onfinish);
+ dest.removeListener('drain', ondrain);
+ dest.removeListener('error', onerror);
+ dest.removeListener('unpipe', onunpipe);
+ src.removeListener('end', onend);
+ src.removeListener('end', unpipe);
+ src.removeListener('data', ondata);
+ cleanedUp = true; // if the reader is waiting for a drain event from this
+ // specific writer, then it would cause it to never start
+ // flowing again.
+ // So, if this is awaiting a drain, then we just call it now.
+ // If we don't know, then assume that we are waiting for one.
+
+ if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
+ }
+
+ src.on('data', ondata);
+
+ function ondata(chunk) {
+ debug('ondata');
+ var ret = dest.write(chunk);
+ debug('dest.write', ret);
+
+ if (ret === false) {
+ // If the user unpiped during `dest.write()`, it is possible
+ // to get stuck in a permanently paused state if that write
+ // also returned false.
+ // => Check whether `dest` is still a piping destination.
+ if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
+ debug('false write response, pause', state.awaitDrain);
+ state.awaitDrain++;
+ }
+
+ src.pause();
+ }
+ } // if the dest has an error, then stop piping into it.
+ // however, don't suppress the throwing behavior for this.
+
+
+ function onerror(er) {
+ debug('onerror', er);
+ unpipe();
+ dest.removeListener('error', onerror);
+ if (EElistenerCount(dest, 'error') === 0) errorOrDestroy(dest, er);
+ } // Make sure our error handler is attached before userland ones.
+
+
+ prependListener(dest, 'error', onerror); // Both close and finish should trigger unpipe, but only once.
+
+ function onclose() {
+ dest.removeListener('finish', onfinish);
+ unpipe();
+ }
+
+ dest.once('close', onclose);
+
+ function onfinish() {
+ debug('onfinish');
+ dest.removeListener('close', onclose);
+ unpipe();
+ }
+
+ dest.once('finish', onfinish);
+
+ function unpipe() {
+ debug('unpipe');
+ src.unpipe(dest);
+ } // tell the dest that it's being piped to
+
+
+ dest.emit('pipe', src); // start the flow if it hasn't been started already.
+
+ if (!state.flowing) {
+ debug('pipe resume');
+ src.resume();
+ }
+
+ return dest;
+};
+
+function pipeOnDrain(src) {
+ return function pipeOnDrainFunctionResult() {
+ var state = src._readableState;
+ debug('pipeOnDrain', state.awaitDrain);
+ if (state.awaitDrain) state.awaitDrain--;
+
+ if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
+ state.flowing = true;
+ flow(src);
+ }
+ };
+}
+
+Readable.prototype.unpipe = function (dest) {
+ var state = this._readableState;
+ var unpipeInfo = {
+ hasUnpiped: false
+ }; // if we're not piping anywhere, then do nothing.
+
+ if (state.pipesCount === 0) return this; // just one destination. most common case.
+
+ if (state.pipesCount === 1) {
+ // passed in one, but it's not the right one.
+ if (dest && dest !== state.pipes) return this;
+ if (!dest) dest = state.pipes; // got a match.
+
+ state.pipes = null;
+ state.pipesCount = 0;
+ state.flowing = false;
+ if (dest) dest.emit('unpipe', this, unpipeInfo);
+ return this;
+ } // slow case. multiple pipe destinations.
+
+
+ if (!dest) {
+ // remove all.
+ var dests = state.pipes;
+ var len = state.pipesCount;
+ state.pipes = null;
+ state.pipesCount = 0;
+ state.flowing = false;
+
+ for (var i = 0; i < len; i++) {
+ dests[i].emit('unpipe', this, {
+ hasUnpiped: false
+ });
+ }
+
+ return this;
+ } // try to find the right one.
+
+
+ var index = indexOf(state.pipes, dest);
+ if (index === -1) return this;
+ state.pipes.splice(index, 1);
+ state.pipesCount -= 1;
+ if (state.pipesCount === 1) state.pipes = state.pipes[0];
+ dest.emit('unpipe', this, unpipeInfo);
+ return this;
+}; // set up data events if they are asked for
+// Ensure readable listeners eventually get something
+
+
+Readable.prototype.on = function (ev, fn) {
+ var res = Stream.prototype.on.call(this, ev, fn);
+ var state = this._readableState;
+
+ if (ev === 'data') {
+ // update readableListening so that resume() may be a no-op
+ // a few lines down. This is needed to support once('readable').
+ state.readableListening = this.listenerCount('readable') > 0; // Try start flowing on next tick if stream isn't explicitly paused
+
+ if (state.flowing !== false) this.resume();
+ } else if (ev === 'readable') {
+ if (!state.endEmitted && !state.readableListening) {
+ state.readableListening = state.needReadable = true;
+ state.flowing = false;
+ state.emittedReadable = false;
+ debug('on readable', state.length, state.reading);
+
+ if (state.length) {
+ emitReadable(this);
+ } else if (!state.reading) {
+ process.nextTick(nReadingNextTick, this);
+ }
+ }
+ }
+
+ return res;
+};
+
+Readable.prototype.addListener = Readable.prototype.on;
+
+Readable.prototype.removeListener = function (ev, fn) {
+ var res = Stream.prototype.removeListener.call(this, ev, fn);
+
+ if (ev === 'readable') {
+ // We need to check if there is someone still listening to
+ // readable and reset the state. However this needs to happen
+ // after readable has been emitted but before I/O (nextTick) to
+ // support once('readable', fn) cycles. This means that calling
+ // resume within the same tick will have no
+ // effect.
+ process.nextTick(updateReadableListening, this);
+ }
+
+ return res;
+};
+
+Readable.prototype.removeAllListeners = function (ev) {
+ var res = Stream.prototype.removeAllListeners.apply(this, arguments);
+
+ if (ev === 'readable' || ev === undefined) {
+ // We need to check if there is someone still listening to
+ // readable and reset the state. However this needs to happen
+ // after readable has been emitted but before I/O (nextTick) to
+ // support once('readable', fn) cycles. This means that calling
+ // resume within the same tick will have no
+ // effect.
+ process.nextTick(updateReadableListening, this);
+ }
+
+ return res;
+};
+
+function updateReadableListening(self) {
+ var state = self._readableState;
+ state.readableListening = self.listenerCount('readable') > 0;
+
+ if (state.resumeScheduled && !state.paused) {
+ // flowing needs to be set to true now, otherwise
+ // the upcoming resume will not flow.
+ state.flowing = true; // crude way to check if we should resume
+ } else if (self.listenerCount('data') > 0) {
+ self.resume();
+ }
+}
+
+function nReadingNextTick(self) {
+ debug('readable nexttick read 0');
+ self.read(0);
+} // pause() and resume() are remnants of the legacy readable stream API
+// If the user uses them, then switch into old mode.
+
+
+Readable.prototype.resume = function () {
+ var state = this._readableState;
+
+ if (!state.flowing) {
+ debug('resume'); // we flow only if there is no one listening
+ // for readable, but we still have to call
+ // resume()
+
+ state.flowing = !state.readableListening;
+ resume(this, state);
+ }
+
+ state.paused = false;
+ return this;
+};
+
+function resume(stream, state) {
+ if (!state.resumeScheduled) {
+ state.resumeScheduled = true;
+ process.nextTick(resume_, stream, state);
+ }
+}
+
+function resume_(stream, state) {
+ debug('resume', state.reading);
+
+ if (!state.reading) {
+ stream.read(0);
+ }
+
+ state.resumeScheduled = false;
+ stream.emit('resume');
+ flow(stream);
+ if (state.flowing && !state.reading) stream.read(0);
+}
+
+Readable.prototype.pause = function () {
+ debug('call pause flowing=%j', this._readableState.flowing);
+
+ if (this._readableState.flowing !== false) {
+ debug('pause');
+ this._readableState.flowing = false;
+ this.emit('pause');
+ }
+
+ this._readableState.paused = true;
+ return this;
+};
+
+function flow(stream) {
+ var state = stream._readableState;
+ debug('flow', state.flowing);
+
+ while (state.flowing && stream.read() !== null) {
+ ;
+ }
+} // wrap an old-style stream as the async data source.
+// This is *not* part of the readable stream interface.
+// It is an ugly unfortunate mess of history.
+
+
+Readable.prototype.wrap = function (stream) {
+ var _this = this;
+
+ var state = this._readableState;
+ var paused = false;
+ stream.on('end', function () {
+ debug('wrapped end');
+
+ if (state.decoder && !state.ended) {
+ var chunk = state.decoder.end();
+ if (chunk && chunk.length) _this.push(chunk);
+ }
+
+ _this.push(null);
+ });
+ stream.on('data', function (chunk) {
+ debug('wrapped data');
+ if (state.decoder) chunk = state.decoder.write(chunk); // don't skip over falsy values in objectMode
+
+ if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
+
+ var ret = _this.push(chunk);
+
+ if (!ret) {
+ paused = true;
+ stream.pause();
+ }
+ }); // proxy all the other methods.
+ // important when wrapping filters and duplexes.
+
+ for (var i in stream) {
+ if (this[i] === undefined && typeof stream[i] === 'function') {
+ this[i] = function methodWrap(method) {
+ return function methodWrapReturnFunction() {
+ return stream[method].apply(stream, arguments);
+ };
+ }(i);
+ }
+ } // proxy certain important events.
+
+
+ for (var n = 0; n < kProxyEvents.length; n++) {
+ stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
+ } // when we try to consume some more bytes, simply unpause the
+ // underlying stream.
+
+
+ this._read = function (n) {
+ debug('wrapped _read', n);
+
+ if (paused) {
+ paused = false;
+ stream.resume();
+ }
+ };
+
+ return this;
+};
+
+if (typeof Symbol === 'function') {
+ Readable.prototype[Symbol.asyncIterator] = function () {
+ if (createReadableStreamAsyncIterator === undefined) {
+ createReadableStreamAsyncIterator = require('./internal/streams/async_iterator');
+ }
+
+ return createReadableStreamAsyncIterator(this);
+ };
+}
+
+Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._readableState.highWaterMark;
+ }
+});
+Object.defineProperty(Readable.prototype, 'readableBuffer', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._readableState && this._readableState.buffer;
+ }
+});
+Object.defineProperty(Readable.prototype, 'readableFlowing', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._readableState.flowing;
+ },
+ set: function set(state) {
+ if (this._readableState) {
+ this._readableState.flowing = state;
+ }
+ }
+}); // exposed for testing purposes only.
+
+Readable._fromList = fromList;
+Object.defineProperty(Readable.prototype, 'readableLength', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._readableState.length;
+ }
+}); // Pluck off n bytes from an array of buffers.
+// Length is the combined lengths of all the buffers in the list.
+// This function is designed to be inlinable, so please take care when making
+// changes to the function body.
+
+function fromList(n, state) {
+ // nothing buffered
+ if (state.length === 0) return null;
+ var ret;
+ if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
+ // read it all, truncate the list
+ if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.first();else ret = state.buffer.concat(state.length);
+ state.buffer.clear();
+ } else {
+ // read part of list
+ ret = state.buffer.consume(n, state.decoder);
+ }
+ return ret;
+}
+
+function endReadable(stream) {
+ var state = stream._readableState;
+ debug('endReadable', state.endEmitted);
+
+ if (!state.endEmitted) {
+ state.ended = true;
+ process.nextTick(endReadableNT, state, stream);
+ }
+}
+
+function endReadableNT(state, stream) {
+ debug('endReadableNT', state.endEmitted, state.length); // Check that we didn't get one last unshift.
+
+ if (!state.endEmitted && state.length === 0) {
+ state.endEmitted = true;
+ stream.readable = false;
+ stream.emit('end');
+
+ if (state.autoDestroy) {
+ // In case of duplex streams we need a way to detect
+ // if the writable side is ready for autoDestroy as well
+ var wState = stream._writableState;
+
+ if (!wState || wState.autoDestroy && wState.finished) {
+ stream.destroy();
+ }
+ }
+ }
+}
+
+if (typeof Symbol === 'function') {
+ Readable.from = function (iterable, opts) {
+ if (from === undefined) {
+ from = require('./internal/streams/from');
+ }
+
+ return from(Readable, iterable, opts);
+ };
+}
+
+function indexOf(xs, x) {
+ for (var i = 0, l = xs.length; i < l; i++) {
+ if (xs[i] === x) return i;
+ }
+
+ return -1;
+}
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/_stream_transform.js b/backend/node_modules/readable-stream/lib/_stream_transform.js
new file mode 100644
index 0000000..41a738c
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_transform.js
@@ -0,0 +1,201 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+// a transform stream is a readable/writable stream where you do
+// something with the data. Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored. (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation. For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes. When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up. When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer. When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks. If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk. However,
+// a pathological inflate type of transform can cause excessive buffering
+// here. For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output. In this case, you could write a very small
+// amount of input, and end up with a very large amount of output. In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform. A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
+'use strict';
+
+module.exports = Transform;
+
+var _require$codes = require('../errors').codes,
+ ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
+ ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
+ ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,
+ ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;
+
+var Duplex = require('./_stream_duplex');
+
+require('inherits')(Transform, Duplex);
+
+function afterTransform(er, data) {
+ var ts = this._transformState;
+ ts.transforming = false;
+ var cb = ts.writecb;
+
+ if (cb === null) {
+ return this.emit('error', new ERR_MULTIPLE_CALLBACK());
+ }
+
+ ts.writechunk = null;
+ ts.writecb = null;
+ if (data != null) // single equals check for both `null` and `undefined`
+ this.push(data);
+ cb(er);
+ var rs = this._readableState;
+ rs.reading = false;
+
+ if (rs.needReadable || rs.length < rs.highWaterMark) {
+ this._read(rs.highWaterMark);
+ }
+}
+
+function Transform(options) {
+ if (!(this instanceof Transform)) return new Transform(options);
+ Duplex.call(this, options);
+ this._transformState = {
+ afterTransform: afterTransform.bind(this),
+ needTransform: false,
+ transforming: false,
+ writecb: null,
+ writechunk: null,
+ writeencoding: null
+ }; // start out asking for a readable event once data is transformed.
+
+ this._readableState.needReadable = true; // we have implemented the _read method, and done the other things
+ // that Readable wants before the first _read call, so unset the
+ // sync guard flag.
+
+ this._readableState.sync = false;
+
+ if (options) {
+ if (typeof options.transform === 'function') this._transform = options.transform;
+ if (typeof options.flush === 'function') this._flush = options.flush;
+ } // When the writable side finishes, then flush out anything remaining.
+
+
+ this.on('prefinish', prefinish);
+}
+
+function prefinish() {
+ var _this = this;
+
+ if (typeof this._flush === 'function' && !this._readableState.destroyed) {
+ this._flush(function (er, data) {
+ done(_this, er, data);
+ });
+ } else {
+ done(this, null, null);
+ }
+}
+
+Transform.prototype.push = function (chunk, encoding) {
+ this._transformState.needTransform = false;
+ return Duplex.prototype.push.call(this, chunk, encoding);
+}; // This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side. You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk. If you pass
+// an error, then that'll put the hurt on the whole operation. If you
+// never call cb(), then you'll never get another chunk.
+
+
+Transform.prototype._transform = function (chunk, encoding, cb) {
+ cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));
+};
+
+Transform.prototype._write = function (chunk, encoding, cb) {
+ var ts = this._transformState;
+ ts.writecb = cb;
+ ts.writechunk = chunk;
+ ts.writeencoding = encoding;
+
+ if (!ts.transforming) {
+ var rs = this._readableState;
+ if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
+ }
+}; // Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+
+
+Transform.prototype._read = function (n) {
+ var ts = this._transformState;
+
+ if (ts.writechunk !== null && !ts.transforming) {
+ ts.transforming = true;
+
+ this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+ } else {
+ // mark that we need a transform, so that any data that comes in
+ // will get processed, now that we've asked for it.
+ ts.needTransform = true;
+ }
+};
+
+Transform.prototype._destroy = function (err, cb) {
+ Duplex.prototype._destroy.call(this, err, function (err2) {
+ cb(err2);
+ });
+};
+
+function done(stream, er, data) {
+ if (er) return stream.emit('error', er);
+ if (data != null) // single equals check for both `null` and `undefined`
+ stream.push(data); // TODO(BridgeAR): Write a test for these two error cases
+ // if there's nothing in the write buffer, then that means
+ // that nothing more will ever be provided
+
+ if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();
+ if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();
+ return stream.push(null);
+}
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/_stream_writable.js b/backend/node_modules/readable-stream/lib/_stream_writable.js
new file mode 100644
index 0000000..a2634d7
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/_stream_writable.js
@@ -0,0 +1,697 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
+'use strict';
+
+module.exports = Writable;
+/* <replacement> */
+
+function WriteReq(chunk, encoding, cb) {
+ this.chunk = chunk;
+ this.encoding = encoding;
+ this.callback = cb;
+ this.next = null;
+} // It seems a linked list but it is not
+// there will be only 2 of these for each stream
+
+
+function CorkedRequest(state) {
+ var _this = this;
+
+ this.next = null;
+ this.entry = null;
+
+ this.finish = function () {
+ onCorkedFinish(_this, state);
+ };
+}
+/* </replacement> */
+
+/*<replacement>*/
+
+
+var Duplex;
+/*</replacement>*/
+
+Writable.WritableState = WritableState;
+/*<replacement>*/
+
+var internalUtil = {
+ deprecate: require('util-deprecate')
+};
+/*</replacement>*/
+
+/*<replacement>*/
+
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+
+var Buffer = require('buffer').Buffer;
+
+var OurUint8Array = global.Uint8Array || function () {};
+
+function _uint8ArrayToBuffer(chunk) {
+ return Buffer.from(chunk);
+}
+
+function _isUint8Array(obj) {
+ return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+
+var destroyImpl = require('./internal/streams/destroy');
+
+var _require = require('./internal/streams/state'),
+ getHighWaterMark = _require.getHighWaterMark;
+
+var _require$codes = require('../errors').codes,
+ ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
+ ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
+ ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
+ ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,
+ ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,
+ ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,
+ ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,
+ ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;
+
+var errorOrDestroy = destroyImpl.errorOrDestroy;
+
+require('inherits')(Writable, Stream);
+
+function nop() {}
+
+function WritableState(options, stream, isDuplex) {
+ Duplex = Duplex || require('./_stream_duplex');
+ options = options || {}; // Duplex streams are both readable and writable, but share
+ // the same options object.
+ // However, some cases require setting options to different
+ // values for the readable and the writable sides of the duplex stream,
+ // e.g. options.readableObjectMode vs. options.writableObjectMode, etc.
+
+ if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag to indicate whether or not this stream
+ // contains buffers or objects.
+
+ this.objectMode = !!options.objectMode;
+ if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; // the point at which write() starts returning false
+ // Note: 0 is a valid value, means that we always return false if
+ // the entire buffer is not flushed immediately on write()
+
+ this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex); // if _final has been called
+
+ this.finalCalled = false; // drain event flag.
+
+ this.needDrain = false; // at the start of calling end()
+
+ this.ending = false; // when end() has been called, and returned
+
+ this.ended = false; // when 'finish' is emitted
+
+ this.finished = false; // has it been destroyed
+
+ this.destroyed = false; // should we decode strings into buffers before passing to _write?
+ // this is here so that some node-core streams can optimize string
+ // handling at a lower level.
+
+ var noDecode = options.decodeStrings === false;
+ this.decodeStrings = !noDecode; // Crypto is kind of old and crusty. Historically, its default string
+ // encoding is 'binary' so we have to make this configurable.
+ // Everything else in the universe uses 'utf8', though.
+
+ this.defaultEncoding = options.defaultEncoding || 'utf8'; // not an actual buffer we keep track of, but a measurement
+ // of how much we're waiting to get pushed to some underlying
+ // socket or file.
+
+ this.length = 0; // a flag to see when we're in the middle of a write.
+
+ this.writing = false; // when true all writes will be buffered until .uncork() call
+
+ this.corked = 0; // a flag to be able to tell if the onwrite cb is called immediately,
+ // or on a later tick. We set this to true at first, because any
+ // actions that shouldn't happen until "later" should generally also
+ // not happen before the first write call.
+
+ this.sync = true; // a flag to know if we're processing previously buffered items, which
+ // may call the _write() callback in the same tick, so that we don't
+ // end up in an overlapped onwrite situation.
+
+ this.bufferProcessing = false; // the callback that's passed to _write(chunk,cb)
+
+ this.onwrite = function (er) {
+ onwrite(stream, er);
+ }; // the callback that the user supplies to write(chunk,encoding,cb)
+
+
+ this.writecb = null; // the amount that is being written when _write is called.
+
+ this.writelen = 0;
+ this.bufferedRequest = null;
+ this.lastBufferedRequest = null; // number of pending user-supplied write callbacks
+ // this must be 0 before 'finish' can be emitted
+
+ this.pendingcb = 0; // emit prefinish if the only thing we're waiting for is _write cbs
+ // This is relevant for synchronous Transform streams
+
+ this.prefinished = false; // True if the error was already emitted and should not be thrown again
+
+ this.errorEmitted = false; // Should close be emitted on destroy. Defaults to true.
+
+ this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'finish' (and potentially 'end')
+
+ this.autoDestroy = !!options.autoDestroy; // count buffered requests
+
+ this.bufferedRequestCount = 0; // allocate the first CorkedRequest, there is always
+ // one allocated and free to use, and we maintain at most two
+
+ this.corkedRequestsFree = new CorkedRequest(this);
+}
+
+WritableState.prototype.getBuffer = function getBuffer() {
+ var current = this.bufferedRequest;
+ var out = [];
+
+ while (current) {
+ out.push(current);
+ current = current.next;
+ }
+
+ return out;
+};
+
+(function () {
+ try {
+ Object.defineProperty(WritableState.prototype, 'buffer', {
+ get: internalUtil.deprecate(function writableStateBufferGetter() {
+ return this.getBuffer();
+ }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+ });
+ } catch (_) {}
+})(); // Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+
+
+var realHasInstance;
+
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+ realHasInstance = Function.prototype[Symbol.hasInstance];
+ Object.defineProperty(Writable, Symbol.hasInstance, {
+ value: function value(object) {
+ if (realHasInstance.call(this, object)) return true;
+ if (this !== Writable) return false;
+ return object && object._writableState instanceof WritableState;
+ }
+ });
+} else {
+ realHasInstance = function realHasInstance(object) {
+ return object instanceof this;
+ };
+}
+
+function Writable(options) {
+ Duplex = Duplex || require('./_stream_duplex'); // Writable ctor is applied to Duplexes, too.
+ // `realHasInstance` is necessary because using plain `instanceof`
+ // would return false, as no `_writableState` property is attached.
+ // Trying to use the custom `instanceof` for Writable here will also break the
+ // Node.js LazyTransform implementation, which has a non-trivial getter for
+ // `_writableState` that would lead to infinite recursion.
+ // Checking for a Stream.Duplex instance is faster here instead of inside
+ // the WritableState constructor, at least with V8 6.5
+
+ var isDuplex = this instanceof Duplex;
+ if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);
+ this._writableState = new WritableState(options, this, isDuplex); // legacy.
+
+ this.writable = true;
+
+ if (options) {
+ if (typeof options.write === 'function') this._write = options.write;
+ if (typeof options.writev === 'function') this._writev = options.writev;
+ if (typeof options.destroy === 'function') this._destroy = options.destroy;
+ if (typeof options.final === 'function') this._final = options.final;
+ }
+
+ Stream.call(this);
+} // Otherwise people can pipe Writable streams, which is just wrong.
+
+
+Writable.prototype.pipe = function () {
+ errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());
+};
+
+function writeAfterEnd(stream, cb) {
+ var er = new ERR_STREAM_WRITE_AFTER_END(); // TODO: defer error events consistently everywhere, not just the cb
+
+ errorOrDestroy(stream, er);
+ process.nextTick(cb, er);
+} // Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
+
+
+function validChunk(stream, state, chunk, cb) {
+ var er;
+
+ if (chunk === null) {
+ er = new ERR_STREAM_NULL_VALUES();
+ } else if (typeof chunk !== 'string' && !state.objectMode) {
+ er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);
+ }
+
+ if (er) {
+ errorOrDestroy(stream, er);
+ process.nextTick(cb, er);
+ return false;
+ }
+
+ return true;
+}
+
+Writable.prototype.write = function (chunk, encoding, cb) {
+ var state = this._writableState;
+ var ret = false;
+
+ var isBuf = !state.objectMode && _isUint8Array(chunk);
+
+ if (isBuf && !Buffer.isBuffer(chunk)) {
+ chunk = _uint8ArrayToBuffer(chunk);
+ }
+
+ if (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
+ }
+
+ if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+ if (typeof cb !== 'function') cb = nop;
+ if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+ state.pendingcb++;
+ ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
+ }
+ return ret;
+};
+
+Writable.prototype.cork = function () {
+ this._writableState.corked++;
+};
+
+Writable.prototype.uncork = function () {
+ var state = this._writableState;
+
+ if (state.corked) {
+ state.corked--;
+ if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+ }
+};
+
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+ // node::ParseEncoding() requires lower case.
+ if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+ if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding);
+ this._writableState.defaultEncoding = encoding;
+ return this;
+};
+
+Object.defineProperty(Writable.prototype, 'writableBuffer', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._writableState && this._writableState.getBuffer();
+ }
+});
+
+function decodeChunk(state, chunk, encoding) {
+ if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+ chunk = Buffer.from(chunk, encoding);
+ }
+
+ return chunk;
+}
+
+Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._writableState.highWaterMark;
+ }
+}); // if we're already writing something, then just put this
+// in the queue, and wait our turn. Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+ if (!isBuf) {
+ var newChunk = decodeChunk(state, chunk, encoding);
+
+ if (chunk !== newChunk) {
+ isBuf = true;
+ encoding = 'buffer';
+ chunk = newChunk;
+ }
+ }
+
+ var len = state.objectMode ? 1 : chunk.length;
+ state.length += len;
+ var ret = state.length < state.highWaterMark; // we must ensure that previous needDrain will not be reset to false.
+
+ if (!ret) state.needDrain = true;
+
+ if (state.writing || state.corked) {
+ var last = state.lastBufferedRequest;
+ state.lastBufferedRequest = {
+ chunk: chunk,
+ encoding: encoding,
+ isBuf: isBuf,
+ callback: cb,
+ next: null
+ };
+
+ if (last) {
+ last.next = state.lastBufferedRequest;
+ } else {
+ state.bufferedRequest = state.lastBufferedRequest;
+ }
+
+ state.bufferedRequestCount += 1;
+ } else {
+ doWrite(stream, state, false, len, chunk, encoding, cb);
+ }
+
+ return ret;
+}
+
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+ state.writelen = len;
+ state.writecb = cb;
+ state.writing = true;
+ state.sync = true;
+ if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+ state.sync = false;
+}
+
+function onwriteError(stream, state, sync, er, cb) {
+ --state.pendingcb;
+
+ if (sync) {
+ // defer the callback if we are being called synchronously
+ // to avoid piling up things on the stack
+ process.nextTick(cb, er); // this can emit finish, and it will always happen
+ // after error
+
+ process.nextTick(finishMaybe, stream, state);
+ stream._writableState.errorEmitted = true;
+ errorOrDestroy(stream, er);
+ } else {
+ // the caller expect this to happen before if
+ // it is async
+ cb(er);
+ stream._writableState.errorEmitted = true;
+ errorOrDestroy(stream, er); // this can emit finish, but finish must
+ // always follow error
+
+ finishMaybe(stream, state);
+ }
+}
+
+function onwriteStateUpdate(state) {
+ state.writing = false;
+ state.writecb = null;
+ state.length -= state.writelen;
+ state.writelen = 0;
+}
+
+function onwrite(stream, er) {
+ var state = stream._writableState;
+ var sync = state.sync;
+ var cb = state.writecb;
+ if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();
+ onwriteStateUpdate(state);
+ if (er) onwriteError(stream, state, sync, er, cb);else {
+ // Check if we're actually ready to finish, but don't emit yet
+ var finished = needFinish(state) || stream.destroyed;
+
+ if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+ clearBuffer(stream, state);
+ }
+
+ if (sync) {
+ process.nextTick(afterWrite, stream, state, finished, cb);
+ } else {
+ afterWrite(stream, state, finished, cb);
+ }
+ }
+}
+
+function afterWrite(stream, state, finished, cb) {
+ if (!finished) onwriteDrain(stream, state);
+ state.pendingcb--;
+ cb();
+ finishMaybe(stream, state);
+} // Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+
+
+function onwriteDrain(stream, state) {
+ if (state.length === 0 && state.needDrain) {
+ state.needDrain = false;
+ stream.emit('drain');
+ }
+} // if there's something in the buffer waiting, then process it
+
+
+function clearBuffer(stream, state) {
+ state.bufferProcessing = true;
+ var entry = state.bufferedRequest;
+
+ if (stream._writev && entry && entry.next) {
+ // Fast case, write everything using _writev()
+ var l = state.bufferedRequestCount;
+ var buffer = new Array(l);
+ var holder = state.corkedRequestsFree;
+ holder.entry = entry;
+ var count = 0;
+ var allBuffers = true;
+
+ while (entry) {
+ buffer[count] = entry;
+ if (!entry.isBuf) allBuffers = false;
+ entry = entry.next;
+ count += 1;
+ }
+
+ buffer.allBuffers = allBuffers;
+ doWrite(stream, state, true, state.length, buffer, '', holder.finish); // doWrite is almost always async, defer these to save a bit of time
+ // as the hot path ends with doWrite
+
+ state.pendingcb++;
+ state.lastBufferedRequest = null;
+
+ if (holder.next) {
+ state.corkedRequestsFree = holder.next;
+ holder.next = null;
+ } else {
+ state.corkedRequestsFree = new CorkedRequest(state);
+ }
+
+ state.bufferedRequestCount = 0;
+ } else {
+ // Slow case, write chunks one-by-one
+ while (entry) {
+ var chunk = entry.chunk;
+ var encoding = entry.encoding;
+ var cb = entry.callback;
+ var len = state.objectMode ? 1 : chunk.length;
+ doWrite(stream, state, false, len, chunk, encoding, cb);
+ entry = entry.next;
+ state.bufferedRequestCount--; // if we didn't call the onwrite immediately, then
+ // it means that we need to wait until it does.
+ // also, that means that the chunk and cb are currently
+ // being processed, so move the buffer counter past them.
+
+ if (state.writing) {
+ break;
+ }
+ }
+
+ if (entry === null) state.lastBufferedRequest = null;
+ }
+
+ state.bufferedRequest = entry;
+ state.bufferProcessing = false;
+}
+
+Writable.prototype._write = function (chunk, encoding, cb) {
+ cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()'));
+};
+
+Writable.prototype._writev = null;
+
+Writable.prototype.end = function (chunk, encoding, cb) {
+ var state = this._writableState;
+
+ if (typeof chunk === 'function') {
+ cb = chunk;
+ chunk = null;
+ encoding = null;
+ } else if (typeof encoding === 'function') {
+ cb = encoding;
+ encoding = null;
+ }
+
+ if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); // .end() fully uncorks
+
+ if (state.corked) {
+ state.corked = 1;
+ this.uncork();
+ } // ignore unnecessary end() calls.
+
+
+ if (!state.ending) endWritable(this, state, cb);
+ return this;
+};
+
+Object.defineProperty(Writable.prototype, 'writableLength', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ return this._writableState.length;
+ }
+});
+
+function needFinish(state) {
+ return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
+
+function callFinal(stream, state) {
+ stream._final(function (err) {
+ state.pendingcb--;
+
+ if (err) {
+ errorOrDestroy(stream, err);
+ }
+
+ state.prefinished = true;
+ stream.emit('prefinish');
+ finishMaybe(stream, state);
+ });
+}
+
+function prefinish(stream, state) {
+ if (!state.prefinished && !state.finalCalled) {
+ if (typeof stream._final === 'function' && !state.destroyed) {
+ state.pendingcb++;
+ state.finalCalled = true;
+ process.nextTick(callFinal, stream, state);
+ } else {
+ state.prefinished = true;
+ stream.emit('prefinish');
+ }
+ }
+}
+
+function finishMaybe(stream, state) {
+ var need = needFinish(state);
+
+ if (need) {
+ prefinish(stream, state);
+
+ if (state.pendingcb === 0) {
+ state.finished = true;
+ stream.emit('finish');
+
+ if (state.autoDestroy) {
+ // In case of duplex streams we need a way to detect
+ // if the readable side is ready for autoDestroy as well
+ var rState = stream._readableState;
+
+ if (!rState || rState.autoDestroy && rState.endEmitted) {
+ stream.destroy();
+ }
+ }
+ }
+ }
+
+ return need;
+}
+
+function endWritable(stream, state, cb) {
+ state.ending = true;
+ finishMaybe(stream, state);
+
+ if (cb) {
+ if (state.finished) process.nextTick(cb);else stream.once('finish', cb);
+ }
+
+ state.ended = true;
+ stream.writable = false;
+}
+
+function onCorkedFinish(corkReq, state, err) {
+ var entry = corkReq.entry;
+ corkReq.entry = null;
+
+ while (entry) {
+ var cb = entry.callback;
+ state.pendingcb--;
+ cb(err);
+ entry = entry.next;
+ } // reuse the free corkReq.
+
+
+ state.corkedRequestsFree.next = corkReq;
+}
+
+Object.defineProperty(Writable.prototype, 'destroyed', {
+ // making it explicit this property is not enumerable
+ // because otherwise some prototype manipulation in
+ // userland will fail
+ enumerable: false,
+ get: function get() {
+ if (this._writableState === undefined) {
+ return false;
+ }
+
+ return this._writableState.destroyed;
+ },
+ set: function set(value) {
+ // we ignore the value if the stream
+ // has not been initialized yet
+ if (!this._writableState) {
+ return;
+ } // backward compatibility, the user is explicitly
+ // managing destroyed
+
+
+ this._writableState.destroyed = value;
+ }
+});
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+
+Writable.prototype._destroy = function (err, cb) {
+ cb(err);
+};
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/async_iterator.js b/backend/node_modules/readable-stream/lib/internal/streams/async_iterator.js
new file mode 100644
index 0000000..9fb615a
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/async_iterator.js
@@ -0,0 +1,207 @@
+'use strict';
+
+var _Object$setPrototypeO;
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+var finished = require('./end-of-stream');
+
+var kLastResolve = Symbol('lastResolve');
+var kLastReject = Symbol('lastReject');
+var kError = Symbol('error');
+var kEnded = Symbol('ended');
+var kLastPromise = Symbol('lastPromise');
+var kHandlePromise = Symbol('handlePromise');
+var kStream = Symbol('stream');
+
+function createIterResult(value, done) {
+ return {
+ value: value,
+ done: done
+ };
+}
+
+function readAndResolve(iter) {
+ var resolve = iter[kLastResolve];
+
+ if (resolve !== null) {
+ var data = iter[kStream].read(); // we defer if data is null
+ // we can be expecting either 'end' or
+ // 'error'
+
+ if (data !== null) {
+ iter[kLastPromise] = null;
+ iter[kLastResolve] = null;
+ iter[kLastReject] = null;
+ resolve(createIterResult(data, false));
+ }
+ }
+}
+
+function onReadable(iter) {
+ // we wait for the next tick, because it might
+ // emit an error with process.nextTick
+ process.nextTick(readAndResolve, iter);
+}
+
+function wrapForNext(lastPromise, iter) {
+ return function (resolve, reject) {
+ lastPromise.then(function () {
+ if (iter[kEnded]) {
+ resolve(createIterResult(undefined, true));
+ return;
+ }
+
+ iter[kHandlePromise](resolve, reject);
+ }, reject);
+ };
+}
+
+var AsyncIteratorPrototype = Object.getPrototypeOf(function () {});
+var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = {
+ get stream() {
+ return this[kStream];
+ },
+
+ next: function next() {
+ var _this = this;
+
+ // if we have detected an error in the meanwhile
+ // reject straight away
+ var error = this[kError];
+
+ if (error !== null) {
+ return Promise.reject(error);
+ }
+
+ if (this[kEnded]) {
+ return Promise.resolve(createIterResult(undefined, true));
+ }
+
+ if (this[kStream].destroyed) {
+ // We need to defer via nextTick because if .destroy(err) is
+ // called, the error will be emitted via nextTick, and
+ // we cannot guarantee that there is no error lingering around
+ // waiting to be emitted.
+ return new Promise(function (resolve, reject) {
+ process.nextTick(function () {
+ if (_this[kError]) {
+ reject(_this[kError]);
+ } else {
+ resolve(createIterResult(undefined, true));
+ }
+ });
+ });
+ } // if we have multiple next() calls
+ // we will wait for the previous Promise to finish
+ // this logic is optimized to support for await loops,
+ // where next() is only called once at a time
+
+
+ var lastPromise = this[kLastPromise];
+ var promise;
+
+ if (lastPromise) {
+ promise = new Promise(wrapForNext(lastPromise, this));
+ } else {
+ // fast path needed to support multiple this.push()
+ // without triggering the next() queue
+ var data = this[kStream].read();
+
+ if (data !== null) {
+ return Promise.resolve(createIterResult(data, false));
+ }
+
+ promise = new Promise(this[kHandlePromise]);
+ }
+
+ this[kLastPromise] = promise;
+ return promise;
+ }
+}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () {
+ return this;
+}), _defineProperty(_Object$setPrototypeO, "return", function _return() {
+ var _this2 = this;
+
+ // destroy(err, cb) is a private API
+ // we can guarantee we have that here, because we control the
+ // Readable class this is attached to
+ return new Promise(function (resolve, reject) {
+ _this2[kStream].destroy(null, function (err) {
+ if (err) {
+ reject(err);
+ return;
+ }
+
+ resolve(createIterResult(undefined, true));
+ });
+ });
+}), _Object$setPrototypeO), AsyncIteratorPrototype);
+
+var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) {
+ var _Object$create;
+
+ var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, {
+ value: stream,
+ writable: true
+ }), _defineProperty(_Object$create, kLastResolve, {
+ value: null,
+ writable: true
+ }), _defineProperty(_Object$create, kLastReject, {
+ value: null,
+ writable: true
+ }), _defineProperty(_Object$create, kError, {
+ value: null,
+ writable: true
+ }), _defineProperty(_Object$create, kEnded, {
+ value: stream._readableState.endEmitted,
+ writable: true
+ }), _defineProperty(_Object$create, kHandlePromise, {
+ value: function value(resolve, reject) {
+ var data = iterator[kStream].read();
+
+ if (data) {
+ iterator[kLastPromise] = null;
+ iterator[kLastResolve] = null;
+ iterator[kLastReject] = null;
+ resolve(createIterResult(data, false));
+ } else {
+ iterator[kLastResolve] = resolve;
+ iterator[kLastReject] = reject;
+ }
+ },
+ writable: true
+ }), _Object$create));
+ iterator[kLastPromise] = null;
+ finished(stream, function (err) {
+ if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
+ var reject = iterator[kLastReject]; // reject if we are waiting for data in the Promise
+ // returned by next() and store the error
+
+ if (reject !== null) {
+ iterator[kLastPromise] = null;
+ iterator[kLastResolve] = null;
+ iterator[kLastReject] = null;
+ reject(err);
+ }
+
+ iterator[kError] = err;
+ return;
+ }
+
+ var resolve = iterator[kLastResolve];
+
+ if (resolve !== null) {
+ iterator[kLastPromise] = null;
+ iterator[kLastResolve] = null;
+ iterator[kLastReject] = null;
+ resolve(createIterResult(undefined, true));
+ }
+
+ iterator[kEnded] = true;
+ });
+ stream.on('readable', onReadable.bind(null, iterator));
+ return iterator;
+};
+
+module.exports = createReadableStreamAsyncIterator;
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/buffer_list.js b/backend/node_modules/readable-stream/lib/internal/streams/buffer_list.js
new file mode 100644
index 0000000..cdea425
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/buffer_list.js
@@ -0,0 +1,210 @@
+'use strict';
+
+function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
+
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var _require = require('buffer'),
+ Buffer = _require.Buffer;
+
+var _require2 = require('util'),
+ inspect = _require2.inspect;
+
+var custom = inspect && inspect.custom || 'inspect';
+
+function copyBuffer(src, target, offset) {
+ Buffer.prototype.copy.call(src, target, offset);
+}
+
+module.exports =
+/*#__PURE__*/
+function () {
+ function BufferList() {
+ _classCallCheck(this, BufferList);
+
+ this.head = null;
+ this.tail = null;
+ this.length = 0;
+ }
+
+ _createClass(BufferList, [{
+ key: "push",
+ value: function push(v) {
+ var entry = {
+ data: v,
+ next: null
+ };
+ if (this.length > 0) this.tail.next = entry;else this.head = entry;
+ this.tail = entry;
+ ++this.length;
+ }
+ }, {
+ key: "unshift",
+ value: function unshift(v) {
+ var entry = {
+ data: v,
+ next: this.head
+ };
+ if (this.length === 0) this.tail = entry;
+ this.head = entry;
+ ++this.length;
+ }
+ }, {
+ key: "shift",
+ value: function shift() {
+ if (this.length === 0) return;
+ var ret = this.head.data;
+ if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+ --this.length;
+ return ret;
+ }
+ }, {
+ key: "clear",
+ value: function clear() {
+ this.head = this.tail = null;
+ this.length = 0;
+ }
+ }, {
+ key: "join",
+ value: function join(s) {
+ if (this.length === 0) return '';
+ var p = this.head;
+ var ret = '' + p.data;
+
+ while (p = p.next) {
+ ret += s + p.data;
+ }
+
+ return ret;
+ }
+ }, {
+ key: "concat",
+ value: function concat(n) {
+ if (this.length === 0) return Buffer.alloc(0);
+ var ret = Buffer.allocUnsafe(n >>> 0);
+ var p = this.head;
+ var i = 0;
+
+ while (p) {
+ copyBuffer(p.data, ret, i);
+ i += p.data.length;
+ p = p.next;
+ }
+
+ return ret;
+ } // Consumes a specified amount of bytes or characters from the buffered data.
+
+ }, {
+ key: "consume",
+ value: function consume(n, hasStrings) {
+ var ret;
+
+ if (n < this.head.data.length) {
+ // `slice` is the same for buffers and strings.
+ ret = this.head.data.slice(0, n);
+ this.head.data = this.head.data.slice(n);
+ } else if (n === this.head.data.length) {
+ // First chunk is a perfect match.
+ ret = this.shift();
+ } else {
+ // Result spans more than one buffer.
+ ret = hasStrings ? this._getString(n) : this._getBuffer(n);
+ }
+
+ return ret;
+ }
+ }, {
+ key: "first",
+ value: function first() {
+ return this.head.data;
+ } // Consumes a specified amount of characters from the buffered data.
+
+ }, {
+ key: "_getString",
+ value: function _getString(n) {
+ var p = this.head;
+ var c = 1;
+ var ret = p.data;
+ n -= ret.length;
+
+ while (p = p.next) {
+ var str = p.data;
+ var nb = n > str.length ? str.length : n;
+ if (nb === str.length) ret += str;else ret += str.slice(0, n);
+ n -= nb;
+
+ if (n === 0) {
+ if (nb === str.length) {
+ ++c;
+ if (p.next) this.head = p.next;else this.head = this.tail = null;
+ } else {
+ this.head = p;
+ p.data = str.slice(nb);
+ }
+
+ break;
+ }
+
+ ++c;
+ }
+
+ this.length -= c;
+ return ret;
+ } // Consumes a specified amount of bytes from the buffered data.
+
+ }, {
+ key: "_getBuffer",
+ value: function _getBuffer(n) {
+ var ret = Buffer.allocUnsafe(n);
+ var p = this.head;
+ var c = 1;
+ p.data.copy(ret);
+ n -= p.data.length;
+
+ while (p = p.next) {
+ var buf = p.data;
+ var nb = n > buf.length ? buf.length : n;
+ buf.copy(ret, ret.length - n, 0, nb);
+ n -= nb;
+
+ if (n === 0) {
+ if (nb === buf.length) {
+ ++c;
+ if (p.next) this.head = p.next;else this.head = this.tail = null;
+ } else {
+ this.head = p;
+ p.data = buf.slice(nb);
+ }
+
+ break;
+ }
+
+ ++c;
+ }
+
+ this.length -= c;
+ return ret;
+ } // Make sure the linked list only shows the minimal necessary information.
+
+ }, {
+ key: custom,
+ value: function value(_, options) {
+ return inspect(this, _objectSpread({}, options, {
+ // Only inspect one level.
+ depth: 0,
+ // It should not recurse.
+ customInspect: false
+ }));
+ }
+ }]);
+
+ return BufferList;
+}();
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/destroy.js b/backend/node_modules/readable-stream/lib/internal/streams/destroy.js
new file mode 100644
index 0000000..3268a16
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/destroy.js
@@ -0,0 +1,105 @@
+'use strict'; // undocumented cb() API, needed for core, not for public API
+
+function destroy(err, cb) {
+ var _this = this;
+
+ var readableDestroyed = this._readableState && this._readableState.destroyed;
+ var writableDestroyed = this._writableState && this._writableState.destroyed;
+
+ if (readableDestroyed || writableDestroyed) {
+ if (cb) {
+ cb(err);
+ } else if (err) {
+ if (!this._writableState) {
+ process.nextTick(emitErrorNT, this, err);
+ } else if (!this._writableState.errorEmitted) {
+ this._writableState.errorEmitted = true;
+ process.nextTick(emitErrorNT, this, err);
+ }
+ }
+
+ return this;
+ } // we set destroyed to true before firing error callbacks in order
+ // to make it re-entrance safe in case destroy() is called within callbacks
+
+
+ if (this._readableState) {
+ this._readableState.destroyed = true;
+ } // if this is a duplex stream mark the writable part as destroyed as well
+
+
+ if (this._writableState) {
+ this._writableState.destroyed = true;
+ }
+
+ this._destroy(err || null, function (err) {
+ if (!cb && err) {
+ if (!_this._writableState) {
+ process.nextTick(emitErrorAndCloseNT, _this, err);
+ } else if (!_this._writableState.errorEmitted) {
+ _this._writableState.errorEmitted = true;
+ process.nextTick(emitErrorAndCloseNT, _this, err);
+ } else {
+ process.nextTick(emitCloseNT, _this);
+ }
+ } else if (cb) {
+ process.nextTick(emitCloseNT, _this);
+ cb(err);
+ } else {
+ process.nextTick(emitCloseNT, _this);
+ }
+ });
+
+ return this;
+}
+
+function emitErrorAndCloseNT(self, err) {
+ emitErrorNT(self, err);
+ emitCloseNT(self);
+}
+
+function emitCloseNT(self) {
+ if (self._writableState && !self._writableState.emitClose) return;
+ if (self._readableState && !self._readableState.emitClose) return;
+ self.emit('close');
+}
+
+function undestroy() {
+ if (this._readableState) {
+ this._readableState.destroyed = false;
+ this._readableState.reading = false;
+ this._readableState.ended = false;
+ this._readableState.endEmitted = false;
+ }
+
+ if (this._writableState) {
+ this._writableState.destroyed = false;
+ this._writableState.ended = false;
+ this._writableState.ending = false;
+ this._writableState.finalCalled = false;
+ this._writableState.prefinished = false;
+ this._writableState.finished = false;
+ this._writableState.errorEmitted = false;
+ }
+}
+
+function emitErrorNT(self, err) {
+ self.emit('error', err);
+}
+
+function errorOrDestroy(stream, err) {
+ // We have tests that rely on errors being emitted
+ // in the same tick, so changing this is semver major.
+ // For now when you opt-in to autoDestroy we allow
+ // the error to be emitted nextTick. In a future
+ // semver major update we should change the default to this.
+ var rState = stream._readableState;
+ var wState = stream._writableState;
+ if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);
+}
+
+module.exports = {
+ destroy: destroy,
+ undestroy: undestroy,
+ errorOrDestroy: errorOrDestroy
+};
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/end-of-stream.js b/backend/node_modules/readable-stream/lib/internal/streams/end-of-stream.js
new file mode 100644
index 0000000..831f286
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/end-of-stream.js
@@ -0,0 +1,104 @@
+// Ported from https://github.com/mafintosh/end-of-stream with
+// permission from the author, Mathias Buus (@mafintosh).
+'use strict';
+
+var ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE;
+
+function once(callback) {
+ var called = false;
+ return function () {
+ if (called) return;
+ called = true;
+
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ callback.apply(this, args);
+ };
+}
+
+function noop() {}
+
+function isRequest(stream) {
+ return stream.setHeader && typeof stream.abort === 'function';
+}
+
+function eos(stream, opts, callback) {
+ if (typeof opts === 'function') return eos(stream, null, opts);
+ if (!opts) opts = {};
+ callback = once(callback || noop);
+ var readable = opts.readable || opts.readable !== false && stream.readable;
+ var writable = opts.writable || opts.writable !== false && stream.writable;
+
+ var onlegacyfinish = function onlegacyfinish() {
+ if (!stream.writable) onfinish();
+ };
+
+ var writableEnded = stream._writableState && stream._writableState.finished;
+
+ var onfinish = function onfinish() {
+ writable = false;
+ writableEnded = true;
+ if (!readable) callback.call(stream);
+ };
+
+ var readableEnded = stream._readableState && stream._readableState.endEmitted;
+
+ var onend = function onend() {
+ readable = false;
+ readableEnded = true;
+ if (!writable) callback.call(stream);
+ };
+
+ var onerror = function onerror(err) {
+ callback.call(stream, err);
+ };
+
+ var onclose = function onclose() {
+ var err;
+
+ if (readable && !readableEnded) {
+ if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
+ return callback.call(stream, err);
+ }
+
+ if (writable && !writableEnded) {
+ if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
+ return callback.call(stream, err);
+ }
+ };
+
+ var onrequest = function onrequest() {
+ stream.req.on('finish', onfinish);
+ };
+
+ if (isRequest(stream)) {
+ stream.on('complete', onfinish);
+ stream.on('abort', onclose);
+ if (stream.req) onrequest();else stream.on('request', onrequest);
+ } else if (writable && !stream._writableState) {
+ // legacy streams
+ stream.on('end', onlegacyfinish);
+ stream.on('close', onlegacyfinish);
+ }
+
+ stream.on('end', onend);
+ stream.on('finish', onfinish);
+ if (opts.error !== false) stream.on('error', onerror);
+ stream.on('close', onclose);
+ return function () {
+ stream.removeListener('complete', onfinish);
+ stream.removeListener('abort', onclose);
+ stream.removeListener('request', onrequest);
+ if (stream.req) stream.req.removeListener('finish', onfinish);
+ stream.removeListener('end', onlegacyfinish);
+ stream.removeListener('close', onlegacyfinish);
+ stream.removeListener('finish', onfinish);
+ stream.removeListener('end', onend);
+ stream.removeListener('error', onerror);
+ stream.removeListener('close', onclose);
+ };
+}
+
+module.exports = eos;
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/from-browser.js b/backend/node_modules/readable-stream/lib/internal/streams/from-browser.js
new file mode 100644
index 0000000..a4ce56f
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/from-browser.js
@@ -0,0 +1,3 @@
+module.exports = function () {
+ throw new Error('Readable.from is not available in the browser')
+};
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/from.js b/backend/node_modules/readable-stream/lib/internal/streams/from.js
new file mode 100644
index 0000000..6c41284
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/from.js
@@ -0,0 +1,64 @@
+'use strict';
+
+function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
+
+function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
+
+function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
+
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+var ERR_INVALID_ARG_TYPE = require('../../../errors').codes.ERR_INVALID_ARG_TYPE;
+
+function from(Readable, iterable, opts) {
+ var iterator;
+
+ if (iterable && typeof iterable.next === 'function') {
+ iterator = iterable;
+ } else if (iterable && iterable[Symbol.asyncIterator]) iterator = iterable[Symbol.asyncIterator]();else if (iterable && iterable[Symbol.iterator]) iterator = iterable[Symbol.iterator]();else throw new ERR_INVALID_ARG_TYPE('iterable', ['Iterable'], iterable);
+
+ var readable = new Readable(_objectSpread({
+ objectMode: true
+ }, opts)); // Reading boolean to protect against _read
+ // being called before last iteration completion.
+
+ var reading = false;
+
+ readable._read = function () {
+ if (!reading) {
+ reading = true;
+ next();
+ }
+ };
+
+ function next() {
+ return _next2.apply(this, arguments);
+ }
+
+ function _next2() {
+ _next2 = _asyncToGenerator(function* () {
+ try {
+ var _ref = yield iterator.next(),
+ value = _ref.value,
+ done = _ref.done;
+
+ if (done) {
+ readable.push(null);
+ } else if (readable.push((yield value))) {
+ next();
+ } else {
+ reading = false;
+ }
+ } catch (err) {
+ readable.destroy(err);
+ }
+ });
+ return _next2.apply(this, arguments);
+ }
+
+ return readable;
+}
+
+module.exports = from;
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/pipeline.js b/backend/node_modules/readable-stream/lib/internal/streams/pipeline.js
new file mode 100644
index 0000000..6589909
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/pipeline.js
@@ -0,0 +1,97 @@
+// Ported from https://github.com/mafintosh/pump with
+// permission from the author, Mathias Buus (@mafintosh).
+'use strict';
+
+var eos;
+
+function once(callback) {
+ var called = false;
+ return function () {
+ if (called) return;
+ called = true;
+ callback.apply(void 0, arguments);
+ };
+}
+
+var _require$codes = require('../../../errors').codes,
+ ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS,
+ ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED;
+
+function noop(err) {
+ // Rethrow the error if it exists to avoid swallowing it
+ if (err) throw err;
+}
+
+function isRequest(stream) {
+ return stream.setHeader && typeof stream.abort === 'function';
+}
+
+function destroyer(stream, reading, writing, callback) {
+ callback = once(callback);
+ var closed = false;
+ stream.on('close', function () {
+ closed = true;
+ });
+ if (eos === undefined) eos = require('./end-of-stream');
+ eos(stream, {
+ readable: reading,
+ writable: writing
+ }, function (err) {
+ if (err) return callback(err);
+ closed = true;
+ callback();
+ });
+ var destroyed = false;
+ return function (err) {
+ if (closed) return;
+ if (destroyed) return;
+ destroyed = true; // request.destroy just do .end - .abort is what we want
+
+ if (isRequest(stream)) return stream.abort();
+ if (typeof stream.destroy === 'function') return stream.destroy();
+ callback(err || new ERR_STREAM_DESTROYED('pipe'));
+ };
+}
+
+function call(fn) {
+ fn();
+}
+
+function pipe(from, to) {
+ return from.pipe(to);
+}
+
+function popCallback(streams) {
+ if (!streams.length) return noop;
+ if (typeof streams[streams.length - 1] !== 'function') return noop;
+ return streams.pop();
+}
+
+function pipeline() {
+ for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) {
+ streams[_key] = arguments[_key];
+ }
+
+ var callback = popCallback(streams);
+ if (Array.isArray(streams[0])) streams = streams[0];
+
+ if (streams.length < 2) {
+ throw new ERR_MISSING_ARGS('streams');
+ }
+
+ var error;
+ var destroys = streams.map(function (stream, i) {
+ var reading = i < streams.length - 1;
+ var writing = i > 0;
+ return destroyer(stream, reading, writing, function (err) {
+ if (!error) error = err;
+ if (err) destroys.forEach(call);
+ if (reading) return;
+ destroys.forEach(call);
+ callback(error);
+ });
+ });
+ return streams.reduce(pipe);
+}
+
+module.exports = pipeline;
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/state.js b/backend/node_modules/readable-stream/lib/internal/streams/state.js
new file mode 100644
index 0000000..19887eb
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/state.js
@@ -0,0 +1,27 @@
+'use strict';
+
+var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE;
+
+function highWaterMarkFrom(options, isDuplex, duplexKey) {
+ return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;
+}
+
+function getHighWaterMark(state, options, duplexKey, isDuplex) {
+ var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);
+
+ if (hwm != null) {
+ if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {
+ var name = isDuplex ? duplexKey : 'highWaterMark';
+ throw new ERR_INVALID_OPT_VALUE(name, hwm);
+ }
+
+ return Math.floor(hwm);
+ } // Default value
+
+
+ return state.objectMode ? 16 : 16 * 1024;
+}
+
+module.exports = {
+ getHighWaterMark: getHighWaterMark
+};
\ No newline at end of file
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/stream-browser.js b/backend/node_modules/readable-stream/lib/internal/streams/stream-browser.js
new file mode 100644
index 0000000..9332a3f
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/stream-browser.js
@@ -0,0 +1 @@
+module.exports = require('events').EventEmitter;
diff --git a/backend/node_modules/readable-stream/lib/internal/streams/stream.js b/backend/node_modules/readable-stream/lib/internal/streams/stream.js
new file mode 100644
index 0000000..ce2ad5b
--- /dev/null
+++ b/backend/node_modules/readable-stream/lib/internal/streams/stream.js
@@ -0,0 +1 @@
+module.exports = require('stream');
diff --git a/backend/node_modules/readable-stream/package.json b/backend/node_modules/readable-stream/package.json
new file mode 100644
index 0000000..0c82dc1
--- /dev/null
+++ b/backend/node_modules/readable-stream/package.json
@@ -0,0 +1,97 @@
+{
+ "_from": "readable-stream@^3.6.0",
+ "_id": "readable-stream@3.6.0",
+ "_inBundle": false,
+ "_integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+ "_location": "/readable-stream",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "readable-stream@^3.6.0",
+ "name": "readable-stream",
+ "escapedName": "readable-stream",
+ "rawSpec": "^3.6.0",
+ "saveSpec": null,
+ "fetchSpec": "^3.6.0"
+ },
+ "_requiredBy": [
+ "/are-we-there-yet"
+ ],
+ "_resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+ "_shasum": "337bbda3adc0706bd3e024426a286d4b4b2c9198",
+ "_spec": "readable-stream@^3.6.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/are-we-there-yet",
+ "browser": {
+ "util": false,
+ "worker_threads": false,
+ "./errors": "./errors-browser.js",
+ "./readable.js": "./readable-browser.js",
+ "./lib/internal/streams/from.js": "./lib/internal/streams/from-browser.js",
+ "./lib/internal/streams/stream.js": "./lib/internal/streams/stream-browser.js"
+ },
+ "bugs": {
+ "url": "https://github.com/nodejs/readable-stream/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "inherits": "^2.0.3",
+ "string_decoder": "^1.1.1",
+ "util-deprecate": "^1.0.1"
+ },
+ "deprecated": false,
+ "description": "Streams3, a user-land copy of the stream library from Node.js",
+ "devDependencies": {
+ "@babel/cli": "^7.2.0",
+ "@babel/core": "^7.2.0",
+ "@babel/polyfill": "^7.0.0",
+ "@babel/preset-env": "^7.2.0",
+ "airtap": "0.0.9",
+ "assert": "^1.4.0",
+ "bl": "^2.0.0",
+ "deep-strict-equal": "^0.2.0",
+ "events.once": "^2.0.2",
+ "glob": "^7.1.2",
+ "gunzip-maybe": "^1.4.1",
+ "hyperquest": "^2.1.3",
+ "lolex": "^2.6.0",
+ "nyc": "^11.0.0",
+ "pump": "^3.0.0",
+ "rimraf": "^2.6.2",
+ "tap": "^12.0.0",
+ "tape": "^4.9.0",
+ "tar-fs": "^1.16.2",
+ "util-promisify": "^2.1.0"
+ },
+ "engines": {
+ "node": ">= 6"
+ },
+ "homepage": "https://github.com/nodejs/readable-stream#readme",
+ "keywords": [
+ "readable",
+ "stream",
+ "pipe"
+ ],
+ "license": "MIT",
+ "main": "readable.js",
+ "name": "readable-stream",
+ "nyc": {
+ "include": [
+ "lib/**.js"
+ ]
+ },
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/nodejs/readable-stream.git"
+ },
+ "scripts": {
+ "ci": "TAP=1 tap --no-esm test/parallel/*.js test/ours/*.js | tee test.tap",
+ "cover": "nyc npm test",
+ "report": "nyc report --reporter=lcov",
+ "test": "tap -J --no-esm test/parallel/*.js test/ours/*.js",
+ "test-browser-local": "airtap --open --local -- test/browser.js",
+ "test-browsers": "airtap --sauce-connect --loopback airtap.local -- test/browser.js",
+ "update-browser-errors": "babel -o errors-browser.js errors.js"
+ },
+ "version": "3.6.0"
+}
diff --git a/backend/node_modules/readable-stream/readable-browser.js b/backend/node_modules/readable-stream/readable-browser.js
new file mode 100644
index 0000000..adbf60d
--- /dev/null
+++ b/backend/node_modules/readable-stream/readable-browser.js
@@ -0,0 +1,9 @@
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
+exports.finished = require('./lib/internal/streams/end-of-stream.js');
+exports.pipeline = require('./lib/internal/streams/pipeline.js');
diff --git a/backend/node_modules/readable-stream/readable.js b/backend/node_modules/readable-stream/readable.js
new file mode 100644
index 0000000..9e0ca12
--- /dev/null
+++ b/backend/node_modules/readable-stream/readable.js
@@ -0,0 +1,16 @@
+var Stream = require('stream');
+if (process.env.READABLE_STREAM === 'disable' && Stream) {
+ module.exports = Stream.Readable;
+ Object.assign(module.exports, Stream);
+ module.exports.Stream = Stream;
+} else {
+ exports = module.exports = require('./lib/_stream_readable.js');
+ exports.Stream = Stream || exports;
+ exports.Readable = exports;
+ exports.Writable = require('./lib/_stream_writable.js');
+ exports.Duplex = require('./lib/_stream_duplex.js');
+ exports.Transform = require('./lib/_stream_transform.js');
+ exports.PassThrough = require('./lib/_stream_passthrough.js');
+ exports.finished = require('./lib/internal/streams/end-of-stream.js');
+ exports.pipeline = require('./lib/internal/streams/pipeline.js');
+}
diff --git a/backend/node_modules/rimraf/CHANGELOG.md b/backend/node_modules/rimraf/CHANGELOG.md
new file mode 100644
index 0000000..f116f14
--- /dev/null
+++ b/backend/node_modules/rimraf/CHANGELOG.md
@@ -0,0 +1,65 @@
+# v3.0
+
+- Add `--preserve-root` option to executable (default true)
+- Drop support for Node.js below version 6
+
+# v2.7
+
+- Make `glob` an optional dependency
+
+# 2.6
+
+- Retry on EBUSY on non-windows platforms as well
+- Make `rimraf.sync` 10000% more reliable on Windows
+
+# 2.5
+
+- Handle Windows EPERM when lstat-ing read-only dirs
+- Add glob option to pass options to glob
+
+# 2.4
+
+- Add EPERM to delay/retry loop
+- Add `disableGlob` option
+
+# 2.3
+
+- Make maxBusyTries and emfileWait configurable
+- Handle weird SunOS unlink-dir issue
+- Glob the CLI arg for better Windows support
+
+# 2.2
+
+- Handle ENOENT properly on Windows
+- Allow overriding fs methods
+- Treat EPERM as indicative of non-empty dir
+- Remove optional graceful-fs dep
+- Consistently return null error instead of undefined on success
+- win32: Treat ENOTEMPTY the same as EBUSY
+- Add `rimraf` binary
+
+# 2.1
+
+- Fix SunOS error code for a non-empty directory
+- Try rmdir before readdir
+- Treat EISDIR like EPERM
+- Remove chmod
+- Remove lstat polyfill, node 0.7 is not supported
+
+# 2.0
+
+- Fix myGid call to check process.getgid
+- Simplify the EBUSY backoff logic.
+- Use fs.lstat in node >= 0.7.9
+- Remove gently option
+- remove fiber implementation
+- Delete files that are marked read-only
+
+# 1.0
+
+- Allow ENOENT in sync method
+- Throw when no callback is provided
+- Make opts.gently an absolute path
+- use 'stat' if 'lstat' is not available
+- Consistent error naming, and rethrow non-ENOENT stat errors
+- add fiber implementation
diff --git a/backend/node_modules/rimraf/LICENSE b/backend/node_modules/rimraf/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/backend/node_modules/rimraf/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/rimraf/README.md b/backend/node_modules/rimraf/README.md
new file mode 100644
index 0000000..423b8cf
--- /dev/null
+++ b/backend/node_modules/rimraf/README.md
@@ -0,0 +1,101 @@
+[](https://travis-ci.org/isaacs/rimraf) [](https://david-dm.org/isaacs/rimraf) [](https://david-dm.org/isaacs/rimraf#info=devDependencies)
+
+The [UNIX command](http://en.wikipedia.org/wiki/Rm_(Unix)) `rm -rf` for node.
+
+Install with `npm install rimraf`, or just drop rimraf.js somewhere.
+
+## API
+
+`rimraf(f, [opts], callback)`
+
+The first parameter will be interpreted as a globbing pattern for files. If you
+want to disable globbing you can do so with `opts.disableGlob` (defaults to
+`false`). This might be handy, for instance, if you have filenames that contain
+globbing wildcard characters.
+
+The callback will be called with an error if there is one. Certain
+errors are handled for you:
+
+* Windows: `EBUSY` and `ENOTEMPTY` - rimraf will back off a maximum of
+ `opts.maxBusyTries` times before giving up, adding 100ms of wait
+ between each attempt. The default `maxBusyTries` is 3.
+* `ENOENT` - If the file doesn't exist, rimraf will return
+ successfully, since your desired outcome is already the case.
+* `EMFILE` - Since `readdir` requires opening a file descriptor, it's
+ possible to hit `EMFILE` if too many file descriptors are in use.
+ In the sync case, there's nothing to be done for this. But in the
+ async case, rimraf will gradually back off with timeouts up to
+ `opts.emfileWait` ms, which defaults to 1000.
+
+## options
+
+* unlink, chmod, stat, lstat, rmdir, readdir,
+ unlinkSync, chmodSync, statSync, lstatSync, rmdirSync, readdirSync
+
+ In order to use a custom file system library, you can override
+ specific fs functions on the options object.
+
+ If any of these functions are present on the options object, then
+ the supplied function will be used instead of the default fs
+ method.
+
+ Sync methods are only relevant for `rimraf.sync()`, of course.
+
+ For example:
+
+ ```javascript
+ var myCustomFS = require('some-custom-fs')
+
+ rimraf('some-thing', myCustomFS, callback)
+ ```
+
+* maxBusyTries
+
+ If an `EBUSY`, `ENOTEMPTY`, or `EPERM` error code is encountered
+ on Windows systems, then rimraf will retry with a linear backoff
+ wait of 100ms longer on each try. The default maxBusyTries is 3.
+
+ Only relevant for async usage.
+
+* emfileWait
+
+ If an `EMFILE` error is encountered, then rimraf will retry
+ repeatedly with a linear backoff of 1ms longer on each try, until
+ the timeout counter hits this max. The default limit is 1000.
+
+ If you repeatedly encounter `EMFILE` errors, then consider using
+ [graceful-fs](http://npm.im/graceful-fs) in your program.
+
+ Only relevant for async usage.
+
+* glob
+
+ Set to `false` to disable [glob](http://npm.im/glob) pattern
+ matching.
+
+ Set to an object to pass options to the glob module. The default
+ glob options are `{ nosort: true, silent: true }`.
+
+ Glob version 6 is used in this module.
+
+ Relevant for both sync and async usage.
+
+* disableGlob
+
+ Set to any non-falsey value to disable globbing entirely.
+ (Equivalent to setting `glob: false`.)
+
+## rimraf.sync
+
+It can remove stuff synchronously, too. But that's not so good. Use
+the async API. It's better.
+
+## CLI
+
+If installed with `npm install rimraf -g` it can be used as a global
+command `rimraf <path> [<path> ...]` which is useful for cross platform support.
+
+## mkdirp
+
+If you need to create a directory recursively, check out
+[mkdirp](https://github.com/substack/node-mkdirp).
diff --git a/backend/node_modules/rimraf/bin.js b/backend/node_modules/rimraf/bin.js
new file mode 100755
index 0000000..023814c
--- /dev/null
+++ b/backend/node_modules/rimraf/bin.js
@@ -0,0 +1,68 @@
+#!/usr/bin/env node
+
+const rimraf = require('./')
+
+const path = require('path')
+
+const isRoot = arg => /^(\/|[a-zA-Z]:\\)$/.test(path.resolve(arg))
+const filterOutRoot = arg => {
+ const ok = preserveRoot === false || !isRoot(arg)
+ if (!ok) {
+ console.error(`refusing to remove ${arg}`)
+ console.error('Set --no-preserve-root to allow this')
+ }
+ return ok
+}
+
+let help = false
+let dashdash = false
+let noglob = false
+let preserveRoot = true
+const args = process.argv.slice(2).filter(arg => {
+ if (dashdash)
+ return !!arg
+ else if (arg === '--')
+ dashdash = true
+ else if (arg === '--no-glob' || arg === '-G')
+ noglob = true
+ else if (arg === '--glob' || arg === '-g')
+ noglob = false
+ else if (arg.match(/^(-+|\/)(h(elp)?|\?)$/))
+ help = true
+ else if (arg === '--preserve-root')
+ preserveRoot = true
+ else if (arg === '--no-preserve-root')
+ preserveRoot = false
+ else
+ return !!arg
+}).filter(arg => !preserveRoot || filterOutRoot(arg))
+
+const go = n => {
+ if (n >= args.length)
+ return
+ const options = noglob ? { glob: false } : {}
+ rimraf(args[n], options, er => {
+ if (er)
+ throw er
+ go(n+1)
+ })
+}
+
+if (help || args.length === 0) {
+ // If they didn't ask for help, then this is not a "success"
+ const log = help ? console.log : console.error
+ log('Usage: rimraf <path> [<path> ...]')
+ log('')
+ log(' Deletes all files and folders at "path" recursively.')
+ log('')
+ log('Options:')
+ log('')
+ log(' -h, --help Display this usage info')
+ log(' -G, --no-glob Do not expand glob patterns in arguments')
+ log(' -g, --glob Expand glob patterns in arguments (default)')
+ log(' --preserve-root Do not remove \'/\' (default)')
+ log(' --no-preserve-root Do not treat \'/\' specially')
+ log(' -- Stop parsing flags')
+ process.exit(help ? 0 : 1)
+} else
+ go(0)
diff --git a/backend/node_modules/rimraf/package.json b/backend/node_modules/rimraf/package.json
new file mode 100644
index 0000000..8205f7e
--- /dev/null
+++ b/backend/node_modules/rimraf/package.json
@@ -0,0 +1,70 @@
+{
+ "_from": "rimraf@^3.0.2",
+ "_id": "rimraf@3.0.2",
+ "_inBundle": false,
+ "_integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
+ "_location": "/rimraf",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "rimraf@^3.0.2",
+ "name": "rimraf",
+ "escapedName": "rimraf",
+ "rawSpec": "^3.0.2",
+ "saveSpec": null,
+ "fetchSpec": "^3.0.2"
+ },
+ "_requiredBy": [
+ "/@mapbox/node-pre-gyp"
+ ],
+ "_resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
+ "_shasum": "f1a5402ba6220ad52cc1282bac1ae3aa49fd061a",
+ "_spec": "rimraf@^3.0.2",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/@mapbox/node-pre-gyp",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bin": {
+ "rimraf": "bin.js"
+ },
+ "bugs": {
+ "url": "https://github.com/isaacs/rimraf/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "glob": "^7.1.3"
+ },
+ "deprecated": false,
+ "description": "A deep deletion module for node (like `rm -rf`)",
+ "devDependencies": {
+ "mkdirp": "^0.5.1",
+ "tap": "^12.1.1"
+ },
+ "files": [
+ "LICENSE",
+ "README.md",
+ "bin.js",
+ "rimraf.js"
+ ],
+ "funding": {
+ "url": "https://github.com/sponsors/isaacs"
+ },
+ "homepage": "https://github.com/isaacs/rimraf#readme",
+ "license": "ISC",
+ "main": "rimraf.js",
+ "name": "rimraf",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/isaacs/rimraf.git"
+ },
+ "scripts": {
+ "postpublish": "git push origin --follow-tags",
+ "postversion": "npm publish",
+ "preversion": "npm test",
+ "test": "tap test/*.js"
+ },
+ "version": "3.0.2"
+}
diff --git a/backend/node_modules/rimraf/rimraf.js b/backend/node_modules/rimraf/rimraf.js
new file mode 100644
index 0000000..34da417
--- /dev/null
+++ b/backend/node_modules/rimraf/rimraf.js
@@ -0,0 +1,360 @@
+const assert = require("assert")
+const path = require("path")
+const fs = require("fs")
+let glob = undefined
+try {
+ glob = require("glob")
+} catch (_err) {
+ // treat glob as optional.
+}
+
+const defaultGlobOpts = {
+ nosort: true,
+ silent: true
+}
+
+// for EMFILE handling
+let timeout = 0
+
+const isWindows = (process.platform === "win32")
+
+const defaults = options => {
+ const methods = [
+ 'unlink',
+ 'chmod',
+ 'stat',
+ 'lstat',
+ 'rmdir',
+ 'readdir'
+ ]
+ methods.forEach(m => {
+ options[m] = options[m] || fs[m]
+ m = m + 'Sync'
+ options[m] = options[m] || fs[m]
+ })
+
+ options.maxBusyTries = options.maxBusyTries || 3
+ options.emfileWait = options.emfileWait || 1000
+ if (options.glob === false) {
+ options.disableGlob = true
+ }
+ if (options.disableGlob !== true && glob === undefined) {
+ throw Error('glob dependency not found, set `options.disableGlob = true` if intentional')
+ }
+ options.disableGlob = options.disableGlob || false
+ options.glob = options.glob || defaultGlobOpts
+}
+
+const rimraf = (p, options, cb) => {
+ if (typeof options === 'function') {
+ cb = options
+ options = {}
+ }
+
+ assert(p, 'rimraf: missing path')
+ assert.equal(typeof p, 'string', 'rimraf: path should be a string')
+ assert.equal(typeof cb, 'function', 'rimraf: callback function required')
+ assert(options, 'rimraf: invalid options argument provided')
+ assert.equal(typeof options, 'object', 'rimraf: options should be object')
+
+ defaults(options)
+
+ let busyTries = 0
+ let errState = null
+ let n = 0
+
+ const next = (er) => {
+ errState = errState || er
+ if (--n === 0)
+ cb(errState)
+ }
+
+ const afterGlob = (er, results) => {
+ if (er)
+ return cb(er)
+
+ n = results.length
+ if (n === 0)
+ return cb()
+
+ results.forEach(p => {
+ const CB = (er) => {
+ if (er) {
+ if ((er.code === "EBUSY" || er.code === "ENOTEMPTY" || er.code === "EPERM") &&
+ busyTries < options.maxBusyTries) {
+ busyTries ++
+ // try again, with the same exact callback as this one.
+ return setTimeout(() => rimraf_(p, options, CB), busyTries * 100)
+ }
+
+ // this one won't happen if graceful-fs is used.
+ if (er.code === "EMFILE" && timeout < options.emfileWait) {
+ return setTimeout(() => rimraf_(p, options, CB), timeout ++)
+ }
+
+ // already gone
+ if (er.code === "ENOENT") er = null
+ }
+
+ timeout = 0
+ next(er)
+ }
+ rimraf_(p, options, CB)
+ })
+ }
+
+ if (options.disableGlob || !glob.hasMagic(p))
+ return afterGlob(null, [p])
+
+ options.lstat(p, (er, stat) => {
+ if (!er)
+ return afterGlob(null, [p])
+
+ glob(p, options.glob, afterGlob)
+ })
+
+}
+
+// Two possible strategies.
+// 1. Assume it's a file. unlink it, then do the dir stuff on EPERM or EISDIR
+// 2. Assume it's a directory. readdir, then do the file stuff on ENOTDIR
+//
+// Both result in an extra syscall when you guess wrong. However, there
+// are likely far more normal files in the world than directories. This
+// is based on the assumption that a the average number of files per
+// directory is >= 1.
+//
+// If anyone ever complains about this, then I guess the strategy could
+// be made configurable somehow. But until then, YAGNI.
+const rimraf_ = (p, options, cb) => {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ // sunos lets the root user unlink directories, which is... weird.
+ // so we have to lstat here and make sure it's not a dir.
+ options.lstat(p, (er, st) => {
+ if (er && er.code === "ENOENT")
+ return cb(null)
+
+ // Windows can EPERM on stat. Life is suffering.
+ if (er && er.code === "EPERM" && isWindows)
+ fixWinEPERM(p, options, er, cb)
+
+ if (st && st.isDirectory())
+ return rmdir(p, options, er, cb)
+
+ options.unlink(p, er => {
+ if (er) {
+ if (er.code === "ENOENT")
+ return cb(null)
+ if (er.code === "EPERM")
+ return (isWindows)
+ ? fixWinEPERM(p, options, er, cb)
+ : rmdir(p, options, er, cb)
+ if (er.code === "EISDIR")
+ return rmdir(p, options, er, cb)
+ }
+ return cb(er)
+ })
+ })
+}
+
+const fixWinEPERM = (p, options, er, cb) => {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ options.chmod(p, 0o666, er2 => {
+ if (er2)
+ cb(er2.code === "ENOENT" ? null : er)
+ else
+ options.stat(p, (er3, stats) => {
+ if (er3)
+ cb(er3.code === "ENOENT" ? null : er)
+ else if (stats.isDirectory())
+ rmdir(p, options, er, cb)
+ else
+ options.unlink(p, cb)
+ })
+ })
+}
+
+const fixWinEPERMSync = (p, options, er) => {
+ assert(p)
+ assert(options)
+
+ try {
+ options.chmodSync(p, 0o666)
+ } catch (er2) {
+ if (er2.code === "ENOENT")
+ return
+ else
+ throw er
+ }
+
+ let stats
+ try {
+ stats = options.statSync(p)
+ } catch (er3) {
+ if (er3.code === "ENOENT")
+ return
+ else
+ throw er
+ }
+
+ if (stats.isDirectory())
+ rmdirSync(p, options, er)
+ else
+ options.unlinkSync(p)
+}
+
+const rmdir = (p, options, originalEr, cb) => {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ // try to rmdir first, and only readdir on ENOTEMPTY or EEXIST (SunOS)
+ // if we guessed wrong, and it's not a directory, then
+ // raise the original error.
+ options.rmdir(p, er => {
+ if (er && (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM"))
+ rmkids(p, options, cb)
+ else if (er && er.code === "ENOTDIR")
+ cb(originalEr)
+ else
+ cb(er)
+ })
+}
+
+const rmkids = (p, options, cb) => {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ options.readdir(p, (er, files) => {
+ if (er)
+ return cb(er)
+ let n = files.length
+ if (n === 0)
+ return options.rmdir(p, cb)
+ let errState
+ files.forEach(f => {
+ rimraf(path.join(p, f), options, er => {
+ if (errState)
+ return
+ if (er)
+ return cb(errState = er)
+ if (--n === 0)
+ options.rmdir(p, cb)
+ })
+ })
+ })
+}
+
+// this looks simpler, and is strictly *faster*, but will
+// tie up the JavaScript thread and fail on excessively
+// deep directory trees.
+const rimrafSync = (p, options) => {
+ options = options || {}
+ defaults(options)
+
+ assert(p, 'rimraf: missing path')
+ assert.equal(typeof p, 'string', 'rimraf: path should be a string')
+ assert(options, 'rimraf: missing options')
+ assert.equal(typeof options, 'object', 'rimraf: options should be object')
+
+ let results
+
+ if (options.disableGlob || !glob.hasMagic(p)) {
+ results = [p]
+ } else {
+ try {
+ options.lstatSync(p)
+ results = [p]
+ } catch (er) {
+ results = glob.sync(p, options.glob)
+ }
+ }
+
+ if (!results.length)
+ return
+
+ for (let i = 0; i < results.length; i++) {
+ const p = results[i]
+
+ let st
+ try {
+ st = options.lstatSync(p)
+ } catch (er) {
+ if (er.code === "ENOENT")
+ return
+
+ // Windows can EPERM on stat. Life is suffering.
+ if (er.code === "EPERM" && isWindows)
+ fixWinEPERMSync(p, options, er)
+ }
+
+ try {
+ // sunos lets the root user unlink directories, which is... weird.
+ if (st && st.isDirectory())
+ rmdirSync(p, options, null)
+ else
+ options.unlinkSync(p)
+ } catch (er) {
+ if (er.code === "ENOENT")
+ return
+ if (er.code === "EPERM")
+ return isWindows ? fixWinEPERMSync(p, options, er) : rmdirSync(p, options, er)
+ if (er.code !== "EISDIR")
+ throw er
+
+ rmdirSync(p, options, er)
+ }
+ }
+}
+
+const rmdirSync = (p, options, originalEr) => {
+ assert(p)
+ assert(options)
+
+ try {
+ options.rmdirSync(p)
+ } catch (er) {
+ if (er.code === "ENOENT")
+ return
+ if (er.code === "ENOTDIR")
+ throw originalEr
+ if (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM")
+ rmkidsSync(p, options)
+ }
+}
+
+const rmkidsSync = (p, options) => {
+ assert(p)
+ assert(options)
+ options.readdirSync(p).forEach(f => rimrafSync(path.join(p, f), options))
+
+ // We only end up here once we got ENOTEMPTY at least once, and
+ // at this point, we are guaranteed to have removed all the kids.
+ // So, we know that it won't be ENOENT or ENOTDIR or anything else.
+ // try really hard to delete stuff on windows, because it has a
+ // PROFOUNDLY annoying habit of not closing handles promptly when
+ // files are deleted, resulting in spurious ENOTEMPTY errors.
+ const retries = isWindows ? 100 : 1
+ let i = 0
+ do {
+ let threw = true
+ try {
+ const ret = options.rmdirSync(p, options)
+ threw = false
+ return ret
+ } finally {
+ if (++i < retries && threw)
+ continue
+ }
+ } while (true)
+}
+
+module.exports = rimraf
+rimraf.sync = rimrafSync
diff --git a/backend/node_modules/set-blocking/CHANGELOG.md b/backend/node_modules/set-blocking/CHANGELOG.md
new file mode 100644
index 0000000..03bf591
--- /dev/null
+++ b/backend/node_modules/set-blocking/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Change Log
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+<a name="2.0.0"></a>
+# [2.0.0](https://github.com/yargs/set-blocking/compare/v1.0.0...v2.0.0) (2016-05-17)
+
+
+### Features
+
+* add an isTTY check ([#3](https://github.com/yargs/set-blocking/issues/3)) ([66ce277](https://github.com/yargs/set-blocking/commit/66ce277))
+
+
+### BREAKING CHANGES
+
+* stdio/stderr will not be set to blocking if isTTY === false
+
+
+
+<a name="1.0.0"></a>
+# 1.0.0 (2016-05-14)
+
+
+### Features
+
+* implemented shim for stream._handle.setBlocking ([6bde0c0](https://github.com/yargs/set-blocking/commit/6bde0c0))
diff --git a/backend/node_modules/set-blocking/LICENSE.txt b/backend/node_modules/set-blocking/LICENSE.txt
new file mode 100644
index 0000000..836440b
--- /dev/null
+++ b/backend/node_modules/set-blocking/LICENSE.txt
@@ -0,0 +1,14 @@
+Copyright (c) 2016, Contributors
+
+Permission to use, copy, modify, and/or distribute this software
+for any purpose with or without fee is hereby granted, provided
+that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
+LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/set-blocking/README.md b/backend/node_modules/set-blocking/README.md
new file mode 100644
index 0000000..e93b420
--- /dev/null
+++ b/backend/node_modules/set-blocking/README.md
@@ -0,0 +1,31 @@
+# set-blocking
+
+[](https://travis-ci.org/yargs/set-blocking)
+[](https://www.npmjs.com/package/set-blocking)
+[](https://coveralls.io/r/yargs/set-blocking?branch=master)
+[](https://github.com/conventional-changelog/standard-version)
+
+set blocking `stdio` and `stderr` ensuring that terminal output does not truncate.
+
+```js
+const setBlocking = require('set-blocking')
+setBlocking(true)
+console.log(someLargeStringToOutput)
+```
+
+## Historical Context/Word of Warning
+
+This was created as a shim to address the bug discussed in [node #6456](https://github.com/nodejs/node/issues/6456). This bug crops up on
+newer versions of Node.js (`0.12+`), truncating terminal output.
+
+You should be mindful of the side-effects caused by using `set-blocking`:
+
+* if your module sets blocking to `true`, it will effect other modules
+ consuming your library. In [yargs](https://github.com/yargs/yargs/blob/master/yargs.js#L653) we only call
+ `setBlocking(true)` once we already know we are about to call `process.exit(code)`.
+* this patch will not apply to subprocesses spawned with `isTTY = true`, this is
+ the [default `spawn()` behavior](https://nodejs.org/api/child_process.html#child_process_child_process_spawn_command_args_options).
+
+## License
+
+ISC
diff --git a/backend/node_modules/set-blocking/index.js b/backend/node_modules/set-blocking/index.js
new file mode 100644
index 0000000..6f78774
--- /dev/null
+++ b/backend/node_modules/set-blocking/index.js
@@ -0,0 +1,7 @@
+module.exports = function (blocking) {
+ [process.stdout, process.stderr].forEach(function (stream) {
+ if (stream._handle && stream.isTTY && typeof stream._handle.setBlocking === 'function') {
+ stream._handle.setBlocking(blocking)
+ }
+ })
+}
diff --git a/backend/node_modules/set-blocking/package.json b/backend/node_modules/set-blocking/package.json
new file mode 100644
index 0000000..c4d22de
--- /dev/null
+++ b/backend/node_modules/set-blocking/package.json
@@ -0,0 +1,70 @@
+{
+ "_from": "set-blocking@^2.0.0",
+ "_id": "set-blocking@2.0.0",
+ "_inBundle": false,
+ "_integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc=",
+ "_location": "/set-blocking",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "set-blocking@^2.0.0",
+ "name": "set-blocking",
+ "escapedName": "set-blocking",
+ "rawSpec": "^2.0.0",
+ "saveSpec": null,
+ "fetchSpec": "^2.0.0"
+ },
+ "_requiredBy": [
+ "/npmlog"
+ ],
+ "_resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
+ "_shasum": "045f9782d011ae9a6803ddd382b24392b3d890f7",
+ "_spec": "set-blocking@^2.0.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/npmlog",
+ "author": {
+ "name": "Ben Coe",
+ "email": "ben@npmjs.com"
+ },
+ "bugs": {
+ "url": "https://github.com/yargs/set-blocking/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "set blocking stdio and stderr ensuring that terminal output does not truncate",
+ "devDependencies": {
+ "chai": "^3.5.0",
+ "coveralls": "^2.11.9",
+ "mocha": "^2.4.5",
+ "nyc": "^6.4.4",
+ "standard": "^7.0.1",
+ "standard-version": "^2.2.1"
+ },
+ "files": [
+ "index.js",
+ "LICENSE.txt"
+ ],
+ "homepage": "https://github.com/yargs/set-blocking#readme",
+ "keywords": [
+ "flush",
+ "terminal",
+ "blocking",
+ "shim",
+ "stdio",
+ "stderr"
+ ],
+ "license": "ISC",
+ "main": "index.js",
+ "name": "set-blocking",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/yargs/set-blocking.git"
+ },
+ "scripts": {
+ "coverage": "nyc report --reporter=text-lcov | coveralls",
+ "pretest": "standard",
+ "test": "nyc mocha ./test/*.js",
+ "version": "standard-version"
+ },
+ "version": "2.0.0"
+}
diff --git a/backend/node_modules/string_decoder/LICENSE b/backend/node_modules/string_decoder/LICENSE
new file mode 100644
index 0000000..778edb2
--- /dev/null
+++ b/backend/node_modules/string_decoder/LICENSE
@@ -0,0 +1,48 @@
+Node.js is licensed for use as follows:
+
+"""
+Copyright Node.js contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
+
+This license applies to parts of Node.js originating from the
+https://github.com/joyent/node repository:
+
+"""
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+"""
+
diff --git a/backend/node_modules/string_decoder/README.md b/backend/node_modules/string_decoder/README.md
new file mode 100644
index 0000000..5fd5831
--- /dev/null
+++ b/backend/node_modules/string_decoder/README.md
@@ -0,0 +1,47 @@
+# string_decoder
+
+***Node-core v8.9.4 string_decoder for userland***
+
+
+[](https://nodei.co/npm/string_decoder/)
+[](https://nodei.co/npm/string_decoder/)
+
+
+```bash
+npm install --save string_decoder
+```
+
+***Node-core string_decoder for userland***
+
+This package is a mirror of the string_decoder implementation in Node-core.
+
+Full documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.9.4/docs/api/).
+
+As of version 1.0.0 **string_decoder** uses semantic versioning.
+
+## Previous versions
+
+Previous version numbers match the versions found in Node core, e.g. 0.10.24 matches Node 0.10.24, likewise 0.11.10 matches Node 0.11.10.
+
+## Update
+
+The *build/* directory contains a build script that will scrape the source from the [nodejs/node](https://github.com/nodejs/node) repo given a specific Node version.
+
+## Streams Working Group
+
+`string_decoder` is maintained by the Streams Working Group, which
+oversees the development and maintenance of the Streams API within
+Node.js. The responsibilities of the Streams Working Group include:
+
+* Addressing stream issues on the Node.js issue tracker.
+* Authoring and editing stream documentation within the Node.js project.
+* Reviewing changes to stream subclasses within the Node.js project.
+* Redirecting changes to streams from the Node.js project to this
+ project.
+* Assisting in the implementation of stream providers within Node.js.
+* Recommending versions of `readable-stream` to be included in Node.js.
+* Messaging about the future of streams to give the community advance
+ notice of changes.
+
+See [readable-stream](https://github.com/nodejs/readable-stream) for
+more details.
diff --git a/backend/node_modules/string_decoder/lib/string_decoder.js b/backend/node_modules/string_decoder/lib/string_decoder.js
new file mode 100644
index 0000000..2e89e63
--- /dev/null
+++ b/backend/node_modules/string_decoder/lib/string_decoder.js
@@ -0,0 +1,296 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
+
+var isEncoding = Buffer.isEncoding || function (encoding) {
+ encoding = '' + encoding;
+ switch (encoding && encoding.toLowerCase()) {
+ case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
+ return true;
+ default:
+ return false;
+ }
+};
+
+function _normalizeEncoding(enc) {
+ if (!enc) return 'utf8';
+ var retried;
+ while (true) {
+ switch (enc) {
+ case 'utf8':
+ case 'utf-8':
+ return 'utf8';
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return 'utf16le';
+ case 'latin1':
+ case 'binary':
+ return 'latin1';
+ case 'base64':
+ case 'ascii':
+ case 'hex':
+ return enc;
+ default:
+ if (retried) return; // undefined
+ enc = ('' + enc).toLowerCase();
+ retried = true;
+ }
+ }
+};
+
+// Do not cache `Buffer.isEncoding` when checking encoding names as some
+// modules monkey-patch it to support additional encodings
+function normalizeEncoding(enc) {
+ var nenc = _normalizeEncoding(enc);
+ if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
+ return nenc || enc;
+}
+
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters.
+exports.StringDecoder = StringDecoder;
+function StringDecoder(encoding) {
+ this.encoding = normalizeEncoding(encoding);
+ var nb;
+ switch (this.encoding) {
+ case 'utf16le':
+ this.text = utf16Text;
+ this.end = utf16End;
+ nb = 4;
+ break;
+ case 'utf8':
+ this.fillLast = utf8FillLast;
+ nb = 4;
+ break;
+ case 'base64':
+ this.text = base64Text;
+ this.end = base64End;
+ nb = 3;
+ break;
+ default:
+ this.write = simpleWrite;
+ this.end = simpleEnd;
+ return;
+ }
+ this.lastNeed = 0;
+ this.lastTotal = 0;
+ this.lastChar = Buffer.allocUnsafe(nb);
+}
+
+StringDecoder.prototype.write = function (buf) {
+ if (buf.length === 0) return '';
+ var r;
+ var i;
+ if (this.lastNeed) {
+ r = this.fillLast(buf);
+ if (r === undefined) return '';
+ i = this.lastNeed;
+ this.lastNeed = 0;
+ } else {
+ i = 0;
+ }
+ if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
+ return r || '';
+};
+
+StringDecoder.prototype.end = utf8End;
+
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
+
+// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
+StringDecoder.prototype.fillLast = function (buf) {
+ if (this.lastNeed <= buf.length) {
+ buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
+ return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+ }
+ buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
+ this.lastNeed -= buf.length;
+};
+
+// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
+// continuation byte. If an invalid byte is detected, -2 is returned.
+function utf8CheckByte(byte) {
+ if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
+ return byte >> 6 === 0x02 ? -1 : -2;
+}
+
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+ var j = buf.length - 1;
+ if (j < i) return 0;
+ var nb = utf8CheckByte(buf[j]);
+ if (nb >= 0) {
+ if (nb > 0) self.lastNeed = nb - 1;
+ return nb;
+ }
+ if (--j < i || nb === -2) return 0;
+ nb = utf8CheckByte(buf[j]);
+ if (nb >= 0) {
+ if (nb > 0) self.lastNeed = nb - 2;
+ return nb;
+ }
+ if (--j < i || nb === -2) return 0;
+ nb = utf8CheckByte(buf[j]);
+ if (nb >= 0) {
+ if (nb > 0) {
+ if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
+ }
+ return nb;
+ }
+ return 0;
+}
+
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+ if ((buf[0] & 0xC0) !== 0x80) {
+ self.lastNeed = 0;
+ return '\ufffd';
+ }
+ if (self.lastNeed > 1 && buf.length > 1) {
+ if ((buf[1] & 0xC0) !== 0x80) {
+ self.lastNeed = 1;
+ return '\ufffd';
+ }
+ if (self.lastNeed > 2 && buf.length > 2) {
+ if ((buf[2] & 0xC0) !== 0x80) {
+ self.lastNeed = 2;
+ return '\ufffd';
+ }
+ }
+ }
+}
+
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+ var p = this.lastTotal - this.lastNeed;
+ var r = utf8CheckExtraBytes(this, buf, p);
+ if (r !== undefined) return r;
+ if (this.lastNeed <= buf.length) {
+ buf.copy(this.lastChar, p, 0, this.lastNeed);
+ return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+ }
+ buf.copy(this.lastChar, p, 0, buf.length);
+ this.lastNeed -= buf.length;
+}
+
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+ var total = utf8CheckIncomplete(this, buf, i);
+ if (!this.lastNeed) return buf.toString('utf8', i);
+ this.lastTotal = total;
+ var end = buf.length - (total - this.lastNeed);
+ buf.copy(this.lastChar, 0, end);
+ return buf.toString('utf8', i, end);
+}
+
+// For UTF-8, a replacement character is added when ending on a partial
+// character.
+function utf8End(buf) {
+ var r = buf && buf.length ? this.write(buf) : '';
+ if (this.lastNeed) return r + '\ufffd';
+ return r;
+}
+
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+ if ((buf.length - i) % 2 === 0) {
+ var r = buf.toString('utf16le', i);
+ if (r) {
+ var c = r.charCodeAt(r.length - 1);
+ if (c >= 0xD800 && c <= 0xDBFF) {
+ this.lastNeed = 2;
+ this.lastTotal = 4;
+ this.lastChar[0] = buf[buf.length - 2];
+ this.lastChar[1] = buf[buf.length - 1];
+ return r.slice(0, -1);
+ }
+ }
+ return r;
+ }
+ this.lastNeed = 1;
+ this.lastTotal = 2;
+ this.lastChar[0] = buf[buf.length - 1];
+ return buf.toString('utf16le', i, buf.length - 1);
+}
+
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+ var r = buf && buf.length ? this.write(buf) : '';
+ if (this.lastNeed) {
+ var end = this.lastTotal - this.lastNeed;
+ return r + this.lastChar.toString('utf16le', 0, end);
+ }
+ return r;
+}
+
+function base64Text(buf, i) {
+ var n = (buf.length - i) % 3;
+ if (n === 0) return buf.toString('base64', i);
+ this.lastNeed = 3 - n;
+ this.lastTotal = 3;
+ if (n === 1) {
+ this.lastChar[0] = buf[buf.length - 1];
+ } else {
+ this.lastChar[0] = buf[buf.length - 2];
+ this.lastChar[1] = buf[buf.length - 1];
+ }
+ return buf.toString('base64', i, buf.length - n);
+}
+
+function base64End(buf) {
+ var r = buf && buf.length ? this.write(buf) : '';
+ if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+ return r;
+}
+
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+ return buf.toString(this.encoding);
+}
+
+function simpleEnd(buf) {
+ return buf && buf.length ? this.write(buf) : '';
+}
\ No newline at end of file
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/LICENSE b/backend/node_modules/string_decoder/node_modules/safe-buffer/LICENSE
new file mode 100644
index 0000000..0c068ce
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Feross Aboukhadijeh
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/README.md b/backend/node_modules/string_decoder/node_modules/safe-buffer/README.md
new file mode 100644
index 0000000..e9a81af
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/README.md
@@ -0,0 +1,584 @@
+# safe-buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][downloads-url] [![javascript style guide][standard-image]][standard-url]
+
+[travis-image]: https://img.shields.io/travis/feross/safe-buffer/master.svg
+[travis-url]: https://travis-ci.org/feross/safe-buffer
+[npm-image]: https://img.shields.io/npm/v/safe-buffer.svg
+[npm-url]: https://npmjs.org/package/safe-buffer
+[downloads-image]: https://img.shields.io/npm/dm/safe-buffer.svg
+[downloads-url]: https://npmjs.org/package/safe-buffer
+[standard-image]: https://img.shields.io/badge/code_style-standard-brightgreen.svg
+[standard-url]: https://standardjs.com
+
+#### Safer Node.js Buffer API
+
+**Use the new Node.js Buffer APIs (`Buffer.from`, `Buffer.alloc`,
+`Buffer.allocUnsafe`, `Buffer.allocUnsafeSlow`) in all versions of Node.js.**
+
+**Uses the built-in implementation when available.**
+
+## install
+
+```
+npm install safe-buffer
+```
+
+## usage
+
+The goal of this package is to provide a safe replacement for the node.js `Buffer`.
+
+It's a drop-in replacement for `Buffer`. You can use it by adding one `require` line to
+the top of your node.js modules:
+
+```js
+var Buffer = require('safe-buffer').Buffer
+
+// Existing buffer code will continue to work without issues:
+
+new Buffer('hey', 'utf8')
+new Buffer([1, 2, 3], 'utf8')
+new Buffer(obj)
+new Buffer(16) // create an uninitialized buffer (potentially unsafe)
+
+// But you can use these new explicit APIs to make clear what you want:
+
+Buffer.from('hey', 'utf8') // convert from many types to a Buffer
+Buffer.alloc(16) // create a zero-filled buffer (safe)
+Buffer.allocUnsafe(16) // create an uninitialized buffer (potentially unsafe)
+```
+
+## api
+
+### Class Method: Buffer.from(array)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `array` {Array}
+
+Allocates a new `Buffer` using an `array` of octets.
+
+```js
+const buf = Buffer.from([0x62,0x75,0x66,0x66,0x65,0x72]);
+ // creates a new Buffer containing ASCII bytes
+ // ['b','u','f','f','e','r']
+```
+
+A `TypeError` will be thrown if `array` is not an `Array`.
+
+### Class Method: Buffer.from(arrayBuffer[, byteOffset[, length]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `arrayBuffer` {ArrayBuffer} The `.buffer` property of a `TypedArray` or
+ a `new ArrayBuffer()`
+* `byteOffset` {Number} Default: `0`
+* `length` {Number} Default: `arrayBuffer.length - byteOffset`
+
+When passed a reference to the `.buffer` property of a `TypedArray` instance,
+the newly created `Buffer` will share the same allocated memory as the
+TypedArray.
+
+```js
+const arr = new Uint16Array(2);
+arr[0] = 5000;
+arr[1] = 4000;
+
+const buf = Buffer.from(arr.buffer); // shares the memory with arr;
+
+console.log(buf);
+ // Prints: <Buffer 88 13 a0 0f>
+
+// changing the TypedArray changes the Buffer also
+arr[1] = 6000;
+
+console.log(buf);
+ // Prints: <Buffer 88 13 70 17>
+```
+
+The optional `byteOffset` and `length` arguments specify a memory range within
+the `arrayBuffer` that will be shared by the `Buffer`.
+
+```js
+const ab = new ArrayBuffer(10);
+const buf = Buffer.from(ab, 0, 2);
+console.log(buf.length);
+ // Prints: 2
+```
+
+A `TypeError` will be thrown if `arrayBuffer` is not an `ArrayBuffer`.
+
+### Class Method: Buffer.from(buffer)
+<!-- YAML
+added: v3.0.0
+-->
+
+* `buffer` {Buffer}
+
+Copies the passed `buffer` data onto a new `Buffer` instance.
+
+```js
+const buf1 = Buffer.from('buffer');
+const buf2 = Buffer.from(buf1);
+
+buf1[0] = 0x61;
+console.log(buf1.toString());
+ // 'auffer'
+console.log(buf2.toString());
+ // 'buffer' (copy is not changed)
+```
+
+A `TypeError` will be thrown if `buffer` is not a `Buffer`.
+
+### Class Method: Buffer.from(str[, encoding])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `str` {String} String to encode.
+* `encoding` {String} Encoding to use, Default: `'utf8'`
+
+Creates a new `Buffer` containing the given JavaScript string `str`. If
+provided, the `encoding` parameter identifies the character encoding.
+If not provided, `encoding` defaults to `'utf8'`.
+
+```js
+const buf1 = Buffer.from('this is a tést');
+console.log(buf1.toString());
+ // prints: this is a tést
+console.log(buf1.toString('ascii'));
+ // prints: this is a tC)st
+
+const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');
+console.log(buf2.toString());
+ // prints: this is a tést
+```
+
+A `TypeError` will be thrown if `str` is not a string.
+
+### Class Method: Buffer.alloc(size[, fill[, encoding]])
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+* `fill` {Value} Default: `undefined`
+* `encoding` {String} Default: `utf8`
+
+Allocates a new `Buffer` of `size` bytes. If `fill` is `undefined`, the
+`Buffer` will be *zero-filled*.
+
+```js
+const buf = Buffer.alloc(5);
+console.log(buf);
+ // <Buffer 00 00 00 00 00>
+```
+
+The `size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+If `fill` is specified, the allocated `Buffer` will be initialized by calling
+`buf.fill(fill)`. See [`buf.fill()`][] for more information.
+
+```js
+const buf = Buffer.alloc(5, 'a');
+console.log(buf);
+ // <Buffer 61 61 61 61 61>
+```
+
+If both `fill` and `encoding` are specified, the allocated `Buffer` will be
+initialized by calling `buf.fill(fill, encoding)`. For example:
+
+```js
+const buf = Buffer.alloc(11, 'aGVsbG8gd29ybGQ=', 'base64');
+console.log(buf);
+ // <Buffer 68 65 6c 6c 6f 20 77 6f 72 6c 64>
+```
+
+Calling `Buffer.alloc(size)` can be significantly slower than the alternative
+`Buffer.allocUnsafe(size)` but ensures that the newly created `Buffer` instance
+contents will *never contain sensitive data*.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### Class Method: Buffer.allocUnsafe(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* `Buffer` of `size` bytes. The `size` must
+be less than or equal to the value of `require('buffer').kMaxLength` (on 64-bit
+architectures, `kMaxLength` is `(2^31)-1`). Otherwise, a [`RangeError`][] is
+thrown. A zero-length Buffer will be created if a `size` less than or equal to
+0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+```js
+const buf = Buffer.allocUnsafe(5);
+console.log(buf);
+ // <Buffer 78 e0 82 02 01>
+ // (octets will be different, every time)
+buf.fill(0);
+console.log(buf);
+ // <Buffer 00 00 00 00 00>
+```
+
+A `TypeError` will be thrown if `size` is not a number.
+
+Note that the `Buffer` module pre-allocates an internal `Buffer` instance of
+size `Buffer.poolSize` that is used as a pool for the fast allocation of new
+`Buffer` instances created using `Buffer.allocUnsafe(size)` (and the deprecated
+`new Buffer(size)` constructor) only when `size` is less than or equal to
+`Buffer.poolSize >> 1` (floor of `Buffer.poolSize` divided by two). The default
+value of `Buffer.poolSize` is `8192` but can be modified.
+
+Use of this pre-allocated internal memory pool is a key difference between
+calling `Buffer.alloc(size, fill)` vs. `Buffer.allocUnsafe(size).fill(fill)`.
+Specifically, `Buffer.alloc(size, fill)` will *never* use the internal Buffer
+pool, while `Buffer.allocUnsafe(size).fill(fill)` *will* use the internal
+Buffer pool if `size` is less than or equal to half `Buffer.poolSize`. The
+difference is subtle but can be important when an application requires the
+additional performance that `Buffer.allocUnsafe(size)` provides.
+
+### Class Method: Buffer.allocUnsafeSlow(size)
+<!-- YAML
+added: v5.10.0
+-->
+
+* `size` {Number}
+
+Allocates a new *non-zero-filled* and non-pooled `Buffer` of `size` bytes. The
+`size` must be less than or equal to the value of
+`require('buffer').kMaxLength` (on 64-bit architectures, `kMaxLength` is
+`(2^31)-1`). Otherwise, a [`RangeError`][] is thrown. A zero-length Buffer will
+be created if a `size` less than or equal to 0 is specified.
+
+The underlying memory for `Buffer` instances created in this way is *not
+initialized*. The contents of the newly created `Buffer` are unknown and
+*may contain sensitive data*. Use [`buf.fill(0)`][] to initialize such
+`Buffer` instances to zeroes.
+
+When using `Buffer.allocUnsafe()` to allocate new `Buffer` instances,
+allocations under 4KB are, by default, sliced from a single pre-allocated
+`Buffer`. This allows applications to avoid the garbage collection overhead of
+creating many individually allocated Buffers. This approach improves both
+performance and memory usage by eliminating the need to track and cleanup as
+many `Persistent` objects.
+
+However, in the case where a developer may need to retain a small chunk of
+memory from a pool for an indeterminate amount of time, it may be appropriate
+to create an un-pooled Buffer instance using `Buffer.allocUnsafeSlow()` then
+copy out the relevant bits.
+
+```js
+// need to keep around a few small chunks of memory
+const store = [];
+
+socket.on('readable', () => {
+ const data = socket.read();
+ // allocate for retained data
+ const sb = Buffer.allocUnsafeSlow(10);
+ // copy the data into the new allocation
+ data.copy(sb, 0, 0, 10);
+ store.push(sb);
+});
+```
+
+Use of `Buffer.allocUnsafeSlow()` should be used only as a last resort *after*
+a developer has observed undue memory retention in their applications.
+
+A `TypeError` will be thrown if `size` is not a number.
+
+### All the Rest
+
+The rest of the `Buffer` API is exactly the same as in node.js.
+[See the docs](https://nodejs.org/api/buffer.html).
+
+
+## Related links
+
+- [Node.js issue: Buffer(number) is unsafe](https://github.com/nodejs/node/issues/4660)
+- [Node.js Enhancement Proposal: Buffer.from/Buffer.alloc/Buffer.zalloc/Buffer() soft-deprecate](https://github.com/nodejs/node-eps/pull/4)
+
+## Why is `Buffer` unsafe?
+
+Today, the node.js `Buffer` constructor is overloaded to handle many different argument
+types like `String`, `Array`, `Object`, `TypedArrayView` (`Uint8Array`, etc.),
+`ArrayBuffer`, and also `Number`.
+
+The API is optimized for convenience: you can throw any type at it, and it will try to do
+what you want.
+
+Because the Buffer constructor is so powerful, you often see code like this:
+
+```js
+// Convert UTF-8 strings to hex
+function toHex (str) {
+ return new Buffer(str).toString('hex')
+}
+```
+
+***But what happens if `toHex` is called with a `Number` argument?***
+
+### Remote Memory Disclosure
+
+If an attacker can make your program call the `Buffer` constructor with a `Number`
+argument, then they can make it allocate uninitialized memory from the node.js process.
+This could potentially disclose TLS private keys, user data, or database passwords.
+
+When the `Buffer` constructor is passed a `Number` argument, it returns an
+**UNINITIALIZED** block of memory of the specified `size`. When you create a `Buffer` like
+this, you **MUST** overwrite the contents before returning it to the user.
+
+From the [node.js docs](https://nodejs.org/api/buffer.html#buffer_new_buffer_size):
+
+> `new Buffer(size)`
+>
+> - `size` Number
+>
+> The underlying memory for `Buffer` instances created in this way is not initialized.
+> **The contents of a newly created `Buffer` are unknown and could contain sensitive
+> data.** Use `buf.fill(0)` to initialize a Buffer to zeroes.
+
+(Emphasis our own.)
+
+Whenever the programmer intended to create an uninitialized `Buffer` you often see code
+like this:
+
+```js
+var buf = new Buffer(16)
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+ buf[i] = otherBuf[i]
+}
+```
+
+
+### Would this ever be a problem in real code?
+
+Yes. It's surprisingly common to forget to check the type of your variables in a
+dynamically-typed language like JavaScript.
+
+Usually the consequences of assuming the wrong type is that your program crashes with an
+uncaught exception. But the failure mode for forgetting to check the type of arguments to
+the `Buffer` constructor is more catastrophic.
+
+Here's an example of a vulnerable service that takes a JSON payload and converts it to
+hex:
+
+```js
+// Take a JSON payload {str: "some string"} and convert it to hex
+var server = http.createServer(function (req, res) {
+ var data = ''
+ req.setEncoding('utf8')
+ req.on('data', function (chunk) {
+ data += chunk
+ })
+ req.on('end', function () {
+ var body = JSON.parse(data)
+ res.end(new Buffer(body.str).toString('hex'))
+ })
+})
+
+server.listen(8080)
+```
+
+In this example, an http client just has to send:
+
+```json
+{
+ "str": 1000
+}
+```
+
+and it will get back 1,000 bytes of uninitialized memory from the server.
+
+This is a very serious bug. It's similar in severity to the
+[the Heartbleed bug](http://heartbleed.com/) that allowed disclosure of OpenSSL process
+memory by remote attackers.
+
+
+### Which real-world packages were vulnerable?
+
+#### [`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht)
+
+[Mathias Buus](https://github.com/mafintosh) and I
+([Feross Aboukhadijeh](http://feross.org/)) found this issue in one of our own packages,
+[`bittorrent-dht`](https://www.npmjs.com/package/bittorrent-dht). The bug would allow
+anyone on the internet to send a series of messages to a user of `bittorrent-dht` and get
+them to reveal 20 bytes at a time of uninitialized memory from the node.js process.
+
+Here's
+[the commit](https://github.com/feross/bittorrent-dht/commit/6c7da04025d5633699800a99ec3fbadf70ad35b8)
+that fixed it. We released a new fixed version, created a
+[Node Security Project disclosure](https://nodesecurity.io/advisories/68), and deprecated all
+vulnerable versions on npm so users will get a warning to upgrade to a newer version.
+
+#### [`ws`](https://www.npmjs.com/package/ws)
+
+That got us wondering if there were other vulnerable packages. Sure enough, within a short
+period of time, we found the same issue in [`ws`](https://www.npmjs.com/package/ws), the
+most popular WebSocket implementation in node.js.
+
+If certain APIs were called with `Number` parameters instead of `String` or `Buffer` as
+expected, then uninitialized server memory would be disclosed to the remote peer.
+
+These were the vulnerable methods:
+
+```js
+socket.send(number)
+socket.ping(number)
+socket.pong(number)
+```
+
+Here's a vulnerable socket server with some echo functionality:
+
+```js
+server.on('connection', function (socket) {
+ socket.on('message', function (message) {
+ message = JSON.parse(message)
+ if (message.type === 'echo') {
+ socket.send(message.data) // send back the user's message
+ }
+ })
+})
+```
+
+`socket.send(number)` called on the server, will disclose server memory.
+
+Here's [the release](https://github.com/websockets/ws/releases/tag/1.0.1) where the issue
+was fixed, with a more detailed explanation. Props to
+[Arnout Kazemier](https://github.com/3rd-Eden) for the quick fix. Here's the
+[Node Security Project disclosure](https://nodesecurity.io/advisories/67).
+
+
+### What's the solution?
+
+It's important that node.js offers a fast way to get memory otherwise performance-critical
+applications would needlessly get a lot slower.
+
+But we need a better way to *signal our intent* as programmers. **When we want
+uninitialized memory, we should request it explicitly.**
+
+Sensitive functionality should not be packed into a developer-friendly API that loosely
+accepts many different types. This type of API encourages the lazy practice of passing
+variables in without checking the type very carefully.
+
+#### A new API: `Buffer.allocUnsafe(number)`
+
+The functionality of creating buffers with uninitialized memory should be part of another
+API. We propose `Buffer.allocUnsafe(number)`. This way, it's not part of an API that
+frequently gets user input of all sorts of different types passed into it.
+
+```js
+var buf = Buffer.allocUnsafe(16) // careful, uninitialized memory!
+
+// Immediately overwrite the uninitialized buffer with data from another buffer
+for (var i = 0; i < buf.length; i++) {
+ buf[i] = otherBuf[i]
+}
+```
+
+
+### How do we fix node.js core?
+
+We sent [a PR to node.js core](https://github.com/nodejs/node/pull/4514) (merged as
+`semver-major`) which defends against one case:
+
+```js
+var str = 16
+new Buffer(str, 'utf8')
+```
+
+In this situation, it's implied that the programmer intended the first argument to be a
+string, since they passed an encoding as a second argument. Today, node.js will allocate
+uninitialized memory in the case of `new Buffer(number, encoding)`, which is probably not
+what the programmer intended.
+
+But this is only a partial solution, since if the programmer does `new Buffer(variable)`
+(without an `encoding` parameter) there's no way to know what they intended. If `variable`
+is sometimes a number, then uninitialized memory will sometimes be returned.
+
+### What's the real long-term fix?
+
+We could deprecate and remove `new Buffer(number)` and use `Buffer.allocUnsafe(number)` when
+we need uninitialized memory. But that would break 1000s of packages.
+
+~~We believe the best solution is to:~~
+
+~~1. Change `new Buffer(number)` to return safe, zeroed-out memory~~
+
+~~2. Create a new API for creating uninitialized Buffers. We propose: `Buffer.allocUnsafe(number)`~~
+
+#### Update
+
+We now support adding three new APIs:
+
+- `Buffer.from(value)` - convert from any type to a buffer
+- `Buffer.alloc(size)` - create a zero-filled buffer
+- `Buffer.allocUnsafe(size)` - create an uninitialized buffer with given size
+
+This solves the core problem that affected `ws` and `bittorrent-dht` which is
+`Buffer(variable)` getting tricked into taking a number argument.
+
+This way, existing code continues working and the impact on the npm ecosystem will be
+minimal. Over time, npm maintainers can migrate performance-critical code to use
+`Buffer.allocUnsafe(number)` instead of `new Buffer(number)`.
+
+
+### Conclusion
+
+We think there's a serious design issue with the `Buffer` API as it exists today. It
+promotes insecure software by putting high-risk functionality into a convenient API
+with friendly "developer ergonomics".
+
+This wasn't merely a theoretical exercise because we found the issue in some of the
+most popular npm packages.
+
+Fortunately, there's an easy fix that can be applied today. Use `safe-buffer` in place of
+`buffer`.
+
+```js
+var Buffer = require('safe-buffer').Buffer
+```
+
+Eventually, we hope that node.js core can switch to this new, safer behavior. We believe
+the impact on the ecosystem would be minimal since it's not a breaking change.
+Well-maintained, popular packages would be updated to use `Buffer.alloc` quickly, while
+older, insecure packages would magically become safe from this attack vector.
+
+
+## links
+
+- [Node.js PR: buffer: throw if both length and enc are passed](https://github.com/nodejs/node/pull/4514)
+- [Node Security Project disclosure for `ws`](https://nodesecurity.io/advisories/67)
+- [Node Security Project disclosure for`bittorrent-dht`](https://nodesecurity.io/advisories/68)
+
+
+## credit
+
+The original issues in `bittorrent-dht`
+([disclosure](https://nodesecurity.io/advisories/68)) and
+`ws` ([disclosure](https://nodesecurity.io/advisories/67)) were discovered by
+[Mathias Buus](https://github.com/mafintosh) and
+[Feross Aboukhadijeh](http://feross.org/).
+
+Thanks to [Adam Baldwin](https://github.com/evilpacket) for helping disclose these issues
+and for his work running the [Node Security Project](https://nodesecurity.io/).
+
+Thanks to [John Hiesey](https://github.com/jhiesey) for proofreading this README and
+auditing the code.
+
+
+## license
+
+MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org)
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/index.d.ts b/backend/node_modules/string_decoder/node_modules/safe-buffer/index.d.ts
new file mode 100644
index 0000000..e9fed80
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/index.d.ts
@@ -0,0 +1,187 @@
+declare module "safe-buffer" {
+ export class Buffer {
+ length: number
+ write(string: string, offset?: number, length?: number, encoding?: string): number;
+ toString(encoding?: string, start?: number, end?: number): string;
+ toJSON(): { type: 'Buffer', data: any[] };
+ equals(otherBuffer: Buffer): boolean;
+ compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number;
+ copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number;
+ slice(start?: number, end?: number): Buffer;
+ writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+ writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+ writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+ writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+ readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+ readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+ readIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+ readIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+ readUInt8(offset: number, noAssert?: boolean): number;
+ readUInt16LE(offset: number, noAssert?: boolean): number;
+ readUInt16BE(offset: number, noAssert?: boolean): number;
+ readUInt32LE(offset: number, noAssert?: boolean): number;
+ readUInt32BE(offset: number, noAssert?: boolean): number;
+ readInt8(offset: number, noAssert?: boolean): number;
+ readInt16LE(offset: number, noAssert?: boolean): number;
+ readInt16BE(offset: number, noAssert?: boolean): number;
+ readInt32LE(offset: number, noAssert?: boolean): number;
+ readInt32BE(offset: number, noAssert?: boolean): number;
+ readFloatLE(offset: number, noAssert?: boolean): number;
+ readFloatBE(offset: number, noAssert?: boolean): number;
+ readDoubleLE(offset: number, noAssert?: boolean): number;
+ readDoubleBE(offset: number, noAssert?: boolean): number;
+ swap16(): Buffer;
+ swap32(): Buffer;
+ swap64(): Buffer;
+ writeUInt8(value: number, offset: number, noAssert?: boolean): number;
+ writeUInt16LE(value: number, offset: number, noAssert?: boolean): number;
+ writeUInt16BE(value: number, offset: number, noAssert?: boolean): number;
+ writeUInt32LE(value: number, offset: number, noAssert?: boolean): number;
+ writeUInt32BE(value: number, offset: number, noAssert?: boolean): number;
+ writeInt8(value: number, offset: number, noAssert?: boolean): number;
+ writeInt16LE(value: number, offset: number, noAssert?: boolean): number;
+ writeInt16BE(value: number, offset: number, noAssert?: boolean): number;
+ writeInt32LE(value: number, offset: number, noAssert?: boolean): number;
+ writeInt32BE(value: number, offset: number, noAssert?: boolean): number;
+ writeFloatLE(value: number, offset: number, noAssert?: boolean): number;
+ writeFloatBE(value: number, offset: number, noAssert?: boolean): number;
+ writeDoubleLE(value: number, offset: number, noAssert?: boolean): number;
+ writeDoubleBE(value: number, offset: number, noAssert?: boolean): number;
+ fill(value: any, offset?: number, end?: number): this;
+ indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+ lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+ includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean;
+
+ /**
+ * Allocates a new buffer containing the given {str}.
+ *
+ * @param str String to store in buffer.
+ * @param encoding encoding to use, optional. Default is 'utf8'
+ */
+ constructor (str: string, encoding?: string);
+ /**
+ * Allocates a new buffer of {size} octets.
+ *
+ * @param size count of octets to allocate.
+ */
+ constructor (size: number);
+ /**
+ * Allocates a new buffer containing the given {array} of octets.
+ *
+ * @param array The octets to store.
+ */
+ constructor (array: Uint8Array);
+ /**
+ * Produces a Buffer backed by the same allocated memory as
+ * the given {ArrayBuffer}.
+ *
+ *
+ * @param arrayBuffer The ArrayBuffer with which to share memory.
+ */
+ constructor (arrayBuffer: ArrayBuffer);
+ /**
+ * Allocates a new buffer containing the given {array} of octets.
+ *
+ * @param array The octets to store.
+ */
+ constructor (array: any[]);
+ /**
+ * Copies the passed {buffer} data onto a new {Buffer} instance.
+ *
+ * @param buffer The buffer to copy.
+ */
+ constructor (buffer: Buffer);
+ prototype: Buffer;
+ /**
+ * Allocates a new Buffer using an {array} of octets.
+ *
+ * @param array
+ */
+ static from(array: any[]): Buffer;
+ /**
+ * When passed a reference to the .buffer property of a TypedArray instance,
+ * the newly created Buffer will share the same allocated memory as the TypedArray.
+ * The optional {byteOffset} and {length} arguments specify a memory range
+ * within the {arrayBuffer} that will be shared by the Buffer.
+ *
+ * @param arrayBuffer The .buffer property of a TypedArray or a new ArrayBuffer()
+ * @param byteOffset
+ * @param length
+ */
+ static from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer;
+ /**
+ * Copies the passed {buffer} data onto a new Buffer instance.
+ *
+ * @param buffer
+ */
+ static from(buffer: Buffer): Buffer;
+ /**
+ * Creates a new Buffer containing the given JavaScript string {str}.
+ * If provided, the {encoding} parameter identifies the character encoding.
+ * If not provided, {encoding} defaults to 'utf8'.
+ *
+ * @param str
+ */
+ static from(str: string, encoding?: string): Buffer;
+ /**
+ * Returns true if {obj} is a Buffer
+ *
+ * @param obj object to test.
+ */
+ static isBuffer(obj: any): obj is Buffer;
+ /**
+ * Returns true if {encoding} is a valid encoding argument.
+ * Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex'
+ *
+ * @param encoding string to test.
+ */
+ static isEncoding(encoding: string): boolean;
+ /**
+ * Gives the actual byte length of a string. encoding defaults to 'utf8'.
+ * This is not the same as String.prototype.length since that returns the number of characters in a string.
+ *
+ * @param string string to test.
+ * @param encoding encoding used to evaluate (defaults to 'utf8')
+ */
+ static byteLength(string: string, encoding?: string): number;
+ /**
+ * Returns a buffer which is the result of concatenating all the buffers in the list together.
+ *
+ * If the list has no items, or if the totalLength is 0, then it returns a zero-length buffer.
+ * If the list has exactly one item, then the first item of the list is returned.
+ * If the list has more than one item, then a new Buffer is created.
+ *
+ * @param list An array of Buffer objects to concatenate
+ * @param totalLength Total length of the buffers when concatenated.
+ * If totalLength is not provided, it is read from the buffers in the list. However, this adds an additional loop to the function, so it is faster to provide the length explicitly.
+ */
+ static concat(list: Buffer[], totalLength?: number): Buffer;
+ /**
+ * The same as buf1.compare(buf2).
+ */
+ static compare(buf1: Buffer, buf2: Buffer): number;
+ /**
+ * Allocates a new buffer of {size} octets.
+ *
+ * @param size count of octets to allocate.
+ * @param fill if specified, buffer will be initialized by calling buf.fill(fill).
+ * If parameter is omitted, buffer will be filled with zeros.
+ * @param encoding encoding used for call to buf.fill while initalizing
+ */
+ static alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer;
+ /**
+ * Allocates a new buffer of {size} octets, leaving memory not initialized, so the contents
+ * of the newly created Buffer are unknown and may contain sensitive data.
+ *
+ * @param size count of octets to allocate
+ */
+ static allocUnsafe(size: number): Buffer;
+ /**
+ * Allocates a new non-pooled buffer of {size} octets, leaving memory not initialized, so the contents
+ * of the newly created Buffer are unknown and may contain sensitive data.
+ *
+ * @param size count of octets to allocate
+ */
+ static allocUnsafeSlow(size: number): Buffer;
+ }
+}
\ No newline at end of file
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/index.js b/backend/node_modules/string_decoder/node_modules/safe-buffer/index.js
new file mode 100644
index 0000000..f8d3ec9
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/index.js
@@ -0,0 +1,65 @@
+/*! safe-buffer. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
+/* eslint-disable node/no-deprecated-api */
+var buffer = require('buffer')
+var Buffer = buffer.Buffer
+
+// alternative to using Object.keys for old browsers
+function copyProps (src, dst) {
+ for (var key in src) {
+ dst[key] = src[key]
+ }
+}
+if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
+ module.exports = buffer
+} else {
+ // Copy properties from require('buffer')
+ copyProps(buffer, exports)
+ exports.Buffer = SafeBuffer
+}
+
+function SafeBuffer (arg, encodingOrOffset, length) {
+ return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.prototype = Object.create(Buffer.prototype)
+
+// Copy static methods from Buffer
+copyProps(Buffer, SafeBuffer)
+
+SafeBuffer.from = function (arg, encodingOrOffset, length) {
+ if (typeof arg === 'number') {
+ throw new TypeError('Argument must not be a number')
+ }
+ return Buffer(arg, encodingOrOffset, length)
+}
+
+SafeBuffer.alloc = function (size, fill, encoding) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ var buf = Buffer(size)
+ if (fill !== undefined) {
+ if (typeof encoding === 'string') {
+ buf.fill(fill, encoding)
+ } else {
+ buf.fill(fill)
+ }
+ } else {
+ buf.fill(0)
+ }
+ return buf
+}
+
+SafeBuffer.allocUnsafe = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ return Buffer(size)
+}
+
+SafeBuffer.allocUnsafeSlow = function (size) {
+ if (typeof size !== 'number') {
+ throw new TypeError('Argument must be a number')
+ }
+ return buffer.SlowBuffer(size)
+}
diff --git a/backend/node_modules/string_decoder/node_modules/safe-buffer/package.json b/backend/node_modules/string_decoder/node_modules/safe-buffer/package.json
new file mode 100644
index 0000000..31a4d36
--- /dev/null
+++ b/backend/node_modules/string_decoder/node_modules/safe-buffer/package.json
@@ -0,0 +1,76 @@
+{
+ "_from": "safe-buffer@~5.2.0",
+ "_id": "safe-buffer@5.2.1",
+ "_inBundle": false,
+ "_integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+ "_location": "/string_decoder/safe-buffer",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "safe-buffer@~5.2.0",
+ "name": "safe-buffer",
+ "escapedName": "safe-buffer",
+ "rawSpec": "~5.2.0",
+ "saveSpec": null,
+ "fetchSpec": "~5.2.0"
+ },
+ "_requiredBy": [
+ "/string_decoder"
+ ],
+ "_resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+ "_shasum": "1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6",
+ "_spec": "safe-buffer@~5.2.0",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/string_decoder",
+ "author": {
+ "name": "Feross Aboukhadijeh",
+ "email": "feross@feross.org",
+ "url": "https://feross.org"
+ },
+ "bugs": {
+ "url": "https://github.com/feross/safe-buffer/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "Safer Node.js Buffer API",
+ "devDependencies": {
+ "standard": "*",
+ "tape": "^5.0.0"
+ },
+ "funding": [
+ {
+ "type": "github",
+ "url": "https://github.com/sponsors/feross"
+ },
+ {
+ "type": "patreon",
+ "url": "https://www.patreon.com/feross"
+ },
+ {
+ "type": "consulting",
+ "url": "https://feross.org/support"
+ }
+ ],
+ "homepage": "https://github.com/feross/safe-buffer",
+ "keywords": [
+ "buffer",
+ "buffer allocate",
+ "node security",
+ "safe",
+ "safe-buffer",
+ "security",
+ "uninitialized"
+ ],
+ "license": "MIT",
+ "main": "index.js",
+ "name": "safe-buffer",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/feross/safe-buffer.git"
+ },
+ "scripts": {
+ "test": "standard && tape test/*.js"
+ },
+ "types": "index.d.ts",
+ "version": "5.2.1"
+}
diff --git a/backend/node_modules/string_decoder/package.json b/backend/node_modules/string_decoder/package.json
new file mode 100644
index 0000000..4ede05d
--- /dev/null
+++ b/backend/node_modules/string_decoder/package.json
@@ -0,0 +1,62 @@
+{
+ "_from": "string_decoder@^1.1.1",
+ "_id": "string_decoder@1.3.0",
+ "_inBundle": false,
+ "_integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+ "_location": "/string_decoder",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "string_decoder@^1.1.1",
+ "name": "string_decoder",
+ "escapedName": "string_decoder",
+ "rawSpec": "^1.1.1",
+ "saveSpec": null,
+ "fetchSpec": "^1.1.1"
+ },
+ "_requiredBy": [
+ "/readable-stream"
+ ],
+ "_resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+ "_shasum": "42f114594a46cf1a8e30b0a84f56c78c3edac21e",
+ "_spec": "string_decoder@^1.1.1",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/readable-stream",
+ "bugs": {
+ "url": "https://github.com/nodejs/string_decoder/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "safe-buffer": "~5.2.0"
+ },
+ "deprecated": false,
+ "description": "The string_decoder module from Node core",
+ "devDependencies": {
+ "babel-polyfill": "^6.23.0",
+ "core-util-is": "^1.0.2",
+ "inherits": "^2.0.3",
+ "tap": "~0.4.8"
+ },
+ "files": [
+ "lib"
+ ],
+ "homepage": "https://github.com/nodejs/string_decoder",
+ "keywords": [
+ "string",
+ "decoder",
+ "browser",
+ "browserify"
+ ],
+ "license": "MIT",
+ "main": "lib/string_decoder.js",
+ "name": "string_decoder",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/nodejs/string_decoder.git"
+ },
+ "scripts": {
+ "ci": "tap test/parallel/*.js test/ours/*.js --tap | tee test.tap && node test/verify-dependencies.js",
+ "test": "tap test/parallel/*.js && node test/verify-dependencies"
+ },
+ "version": "1.3.0"
+}
diff --git a/backend/node_modules/tar/LICENSE b/backend/node_modules/tar/LICENSE
new file mode 100644
index 0000000..19129e3
--- /dev/null
+++ b/backend/node_modules/tar/LICENSE
@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/backend/node_modules/tar/README.md b/backend/node_modules/tar/README.md
new file mode 100644
index 0000000..42afb1a
--- /dev/null
+++ b/backend/node_modules/tar/README.md
@@ -0,0 +1,1042 @@
+# node-tar
+
+[Fast](./benchmarks) and full-featured Tar for Node.js
+
+The API is designed to mimic the behavior of `tar(1)` on unix systems.
+If you are familiar with how tar works, most of this will hopefully be
+straightforward for you. If not, then hopefully this module can teach
+you useful unix skills that may come in handy someday :)
+
+## Background
+
+A "tar file" or "tarball" is an archive of file system entries
+(directories, files, links, etc.) The name comes from "tape archive".
+If you run `man tar` on almost any Unix command line, you'll learn
+quite a bit about what it can do, and its history.
+
+Tar has 5 main top-level commands:
+
+* `c` Create an archive
+* `r` Replace entries within an archive
+* `u` Update entries within an archive (ie, replace if they're newer)
+* `t` List out the contents of an archive
+* `x` Extract an archive to disk
+
+The other flags and options modify how this top level function works.
+
+## High-Level API
+
+These 5 functions are the high-level API. All of them have a
+single-character name (for unix nerds familiar with `tar(1)`) as well
+as a long name (for everyone else).
+
+All the high-level functions take the following arguments, all three
+of which are optional and may be omitted.
+
+1. `options` - An optional object specifying various options
+2. `paths` - An array of paths to add or extract
+3. `callback` - Called when the command is completed, if async. (If
+ sync or no file specified, providing a callback throws a
+ `TypeError`.)
+
+If the command is sync (ie, if `options.sync=true`), then the
+callback is not allowed, since the action will be completed immediately.
+
+If a `file` argument is specified, and the command is async, then a
+`Promise` is returned. In this case, if async, a callback may be
+provided which is called when the command is completed.
+
+If a `file` option is not specified, then a stream is returned. For
+`create`, this is a readable stream of the generated archive. For
+`list` and `extract` this is a writable stream that an archive should
+be written into. If a file is not specified, then a callback is not
+allowed, because you're already getting a stream to work with.
+
+`replace` and `update` only work on existing archives, and so require
+a `file` argument.
+
+Sync commands without a file argument return a stream that acts on its
+input immediately in the same tick. For readable streams, this means
+that all of the data is immediately available by calling
+`stream.read()`. For writable streams, it will be acted upon as soon
+as it is provided, but this can be at any time.
+
+### Warnings and Errors
+
+Tar emits warnings and errors for recoverable and unrecoverable situations,
+respectively. In many cases, a warning only affects a single entry in an
+archive, or is simply informing you that it's modifying an entry to comply
+with the settings provided.
+
+Unrecoverable warnings will always raise an error (ie, emit `'error'` on
+streaming actions, throw for non-streaming sync actions, reject the
+returned Promise for non-streaming async operations, or call a provided
+callback with an `Error` as the first argument). Recoverable errors will
+raise an error only if `strict: true` is set in the options.
+
+Respond to (recoverable) warnings by listening to the `warn` event.
+Handlers receive 3 arguments:
+
+- `code` String. One of the error codes below. This may not match
+ `data.code`, which preserves the original error code from fs and zlib.
+- `message` String. More details about the error.
+- `data` Metadata about the error. An `Error` object for errors raised by
+ fs and zlib. All fields are attached to errors raisd by tar. Typically
+ contains the following fields, as relevant:
+ - `tarCode` The tar error code.
+ - `code` Either the tar error code, or the error code set by the
+ underlying system.
+ - `file` The archive file being read or written.
+ - `cwd` Working directory for creation and extraction operations.
+ - `entry` The entry object (if it could be created) for `TAR_ENTRY_INFO`,
+ `TAR_ENTRY_INVALID`, and `TAR_ENTRY_ERROR` warnings.
+ - `header` The header object (if it could be created, and the entry could
+ not be created) for `TAR_ENTRY_INFO` and `TAR_ENTRY_INVALID` warnings.
+ - `recoverable` Boolean. If `false`, then the warning will emit an
+ `error`, even in non-strict mode.
+
+#### Error Codes
+
+* `TAR_ENTRY_INFO` An informative error indicating that an entry is being
+ modified, but otherwise processed normally. For example, removing `/` or
+ `C:\` from absolute paths if `preservePaths` is not set.
+
+* `TAR_ENTRY_INVALID` An indication that a given entry is not a valid tar
+ archive entry, and will be skipped. This occurs when:
+ - a checksum fails,
+ - a `linkpath` is missing for a link type, or
+ - a `linkpath` is provided for a non-link type.
+
+ If every entry in a parsed archive raises an `TAR_ENTRY_INVALID` error,
+ then the archive is presumed to be unrecoverably broken, and
+ `TAR_BAD_ARCHIVE` will be raised.
+
+* `TAR_ENTRY_ERROR` The entry appears to be a valid tar archive entry, but
+ encountered an error which prevented it from being unpacked. This occurs
+ when:
+ - an unrecoverable fs error happens during unpacking,
+ - an entry has `..` in the path and `preservePaths` is not set, or
+ - an entry is extracting through a symbolic link, when `preservePaths` is
+ not set.
+
+* `TAR_ENTRY_UNSUPPORTED` An indication that a given entry is
+ a valid archive entry, but of a type that is unsupported, and so will be
+ skipped in archive creation or extracting.
+
+* `TAR_ABORT` When parsing gzipped-encoded archives, the parser will
+ abort the parse process raise a warning for any zlib errors encountered.
+ Aborts are considered unrecoverable for both parsing and unpacking.
+
+* `TAR_BAD_ARCHIVE` The archive file is totally hosed. This can happen for
+ a number of reasons, and always occurs at the end of a parse or extract:
+
+ - An entry body was truncated before seeing the full number of bytes.
+ - The archive contained only invalid entries, indicating that it is
+ likely not an archive, or at least, not an archive this library can
+ parse.
+
+ `TAR_BAD_ARCHIVE` is considered informative for parse operations, but
+ unrecoverable for extraction. Note that, if encountered at the end of an
+ extraction, tar WILL still have extracted as much it could from the
+ archive, so there may be some garbage files to clean up.
+
+Errors that occur deeper in the system (ie, either the filesystem or zlib)
+will have their error codes left intact, and a `tarCode` matching one of
+the above will be added to the warning metadata or the raised error object.
+
+Errors generated by tar will have one of the above codes set as the
+`error.code` field as well, but since errors originating in zlib or fs will
+have their original codes, it's better to read `error.tarCode` if you wish
+to see how tar is handling the issue.
+
+### Examples
+
+The API mimics the `tar(1)` command line functionality, with aliases
+for more human-readable option and function names. The goal is that
+if you know how to use `tar(1)` in Unix, then you know how to use
+`require('tar')` in JavaScript.
+
+To replicate `tar czf my-tarball.tgz files and folders`, you'd do:
+
+```js
+tar.c(
+ {
+ gzip: <true|gzip options>,
+ file: 'my-tarball.tgz'
+ },
+ ['some', 'files', 'and', 'folders']
+).then(_ => { .. tarball has been created .. })
+```
+
+To replicate `tar cz files and folders > my-tarball.tgz`, you'd do:
+
+```js
+tar.c( // or tar.create
+ {
+ gzip: <true|gzip options>
+ },
+ ['some', 'files', 'and', 'folders']
+).pipe(fs.createWriteStream('my-tarball.tgz'))
+```
+
+To replicate `tar xf my-tarball.tgz` you'd do:
+
+```js
+tar.x( // or tar.extract(
+ {
+ file: 'my-tarball.tgz'
+ }
+).then(_=> { .. tarball has been dumped in cwd .. })
+```
+
+To replicate `cat my-tarball.tgz | tar x -C some-dir --strip=1`:
+
+```js
+fs.createReadStream('my-tarball.tgz').pipe(
+ tar.x({
+ strip: 1,
+ C: 'some-dir' // alias for cwd:'some-dir', also ok
+ })
+)
+```
+
+To replicate `tar tf my-tarball.tgz`, do this:
+
+```js
+tar.t({
+ file: 'my-tarball.tgz',
+ onentry: entry => { .. do whatever with it .. }
+})
+```
+
+To replicate `cat my-tarball.tgz | tar t` do:
+
+```js
+fs.createReadStream('my-tarball.tgz')
+ .pipe(tar.t())
+ .on('entry', entry => { .. do whatever with it .. })
+```
+
+To do anything synchronous, add `sync: true` to the options. Note
+that sync functions don't take a callback and don't return a promise.
+When the function returns, it's already done. Sync methods without a
+file argument return a sync stream, which flushes immediately. But,
+of course, it still won't be done until you `.end()` it.
+
+To filter entries, add `filter: <function>` to the options.
+Tar-creating methods call the filter with `filter(path, stat)`.
+Tar-reading methods (including extraction) call the filter with
+`filter(path, entry)`. The filter is called in the `this`-context of
+the `Pack` or `Unpack` stream object.
+
+The arguments list to `tar t` and `tar x` specify a list of filenames
+to extract or list, so they're equivalent to a filter that tests if
+the file is in the list.
+
+For those who _aren't_ fans of tar's single-character command names:
+
+```
+tar.c === tar.create
+tar.r === tar.replace (appends to archive, file is required)
+tar.u === tar.update (appends if newer, file is required)
+tar.x === tar.extract
+tar.t === tar.list
+```
+
+Keep reading for all the command descriptions and options, as well as
+the low-level API that they are built on.
+
+### tar.c(options, fileList, callback) [alias: tar.create]
+
+Create a tarball archive.
+
+The `fileList` is an array of paths to add to the tarball. Adding a
+directory also adds its children recursively.
+
+An entry in `fileList` that starts with an `@` symbol is a tar archive
+whose entries will be added. To add a file that starts with `@`,
+prepend it with `./`.
+
+The following options are supported:
+
+- `file` Write the tarball archive to the specified filename. If this
+ is specified, then the callback will be fired when the file has been
+ written, and a promise will be returned that resolves when the file
+ is written. If a filename is not specified, then a Readable Stream
+ will be returned which will emit the file data. [Alias: `f`]
+- `sync` Act synchronously. If this is set, then any provided file
+ will be fully written after the call to `tar.c`. If this is set,
+ and a file is not provided, then the resulting stream will already
+ have the data ready to `read` or `emit('data')` as soon as you
+ request it.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `cwd` The current working directory for creating the archive.
+ Defaults to `process.cwd()`. [Alias: `C`]
+- `prefix` A path portion to prefix onto the entries in the archive.
+- `gzip` Set to any truthy value to create a gzipped archive, or an
+ object with settings for `zlib.Gzip()` [Alias: `z`]
+- `filter` A function that gets called with `(path, stat)` for each
+ entry being added. Return `true` to add the entry to the archive,
+ or `false` to omit it.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+ `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note
+ that `mtime` is still included, because this is necessary for other
+ time-based operations. Additionally, `mode` is set to a "reasonable
+ default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths. By default, `/` is stripped
+ from absolute paths. [Alias: `P`]
+- `mode` The mode to set on the created file archive
+- `noDirRecurse` Do not recursively archive the contents of
+ directories. [Alias: `n`]
+- `follow` Set to true to pack the targets of symbolic links. Without
+ this option, symbolic links are archived as such. [Alias: `L`, `h`]
+- `noPax` Suppress pax extended headers. Note that this means that
+ long paths and linkpaths will be truncated, and large or negative
+ numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+ Note that this prevents using other mtime-based features like
+ `tar.update` or the `keepNewer` option with the resulting tar archive.
+ [Alias: `m`, `no-mtime`]
+- `mtime` Set to a `Date` object to force a specific `mtime` for
+ everything added to the archive. Overridden by `noMtime`.
+
+The following options are mostly internal, but can be modified in some
+advanced use cases, such as re-using caches between runs.
+
+- `linkCache` A Map object containing the device and inode value for
+ any file whose nlink is > 1, to identify hard links.
+- `statCache` A Map object that caches calls `lstat`.
+- `readdirCache` A Map object that caches calls to `readdir`.
+- `jobs` A number specifying how many concurrent jobs to run.
+ Defaults to 4.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+ Defaults to 16 MB.
+
+### tar.x(options, fileList, callback) [alias: tar.extract]
+
+Extract a tarball archive.
+
+The `fileList` is an array of paths to extract from the tarball. If
+no paths are provided, then all the entries are extracted.
+
+If the archive is gzipped, then tar will detect this and unzip it.
+
+Note that all directories that are created will be forced to be
+writable, readable, and listable by their owner, to avoid cases where
+a directory prevents extraction of child entries by virtue of its
+mode.
+
+Most extraction errors will cause a `warn` event to be emitted. If
+the `cwd` is missing, or not a directory, then the extraction will
+fail completely.
+
+The following options are supported:
+
+- `cwd` Extract files relative to the specified directory. Defaults
+ to `process.cwd()`. If provided, this must exist and must be a
+ directory. [Alias: `C`]
+- `file` The archive file to extract. If not specified, then a
+ Writable stream is returned where the archive data should be
+ written. [Alias: `f`]
+- `sync` Create files and directories synchronously.
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `filter` A function that gets called with `(path, entry)` for each
+ entry being unpacked. Return `true` to unpack the entry from the
+ archive, or `false` to skip it.
+- `newer` Set to true to keep the existing file on disk if it's newer
+ than the file in the archive. [Alias: `keep-newer`,
+ `keep-newer-files`]
+- `keep` Do not overwrite existing files. In particular, if a file
+ appears more than once in an archive, later copies will not
+ overwrite earlier copies. [Alias: `k`, `keep-existing`]
+- `preservePaths` Allow absolute paths, paths containing `..`, and
+ extracting through symbolic links. By default, `/` is stripped from
+ absolute paths, `..` paths are not extracted, and any file whose
+ location would be modified by a symbolic link is not extracted.
+ [Alias: `P`]
+- `unlink` Unlink files before creating them. Without this option,
+ tar overwrites existing files, which preserves existing hardlinks.
+ With this option, existing hardlinks will be broken, as will any
+ symlink that would affect the location of an extracted file. [Alias:
+ `U`]
+- `strip` Remove the specified number of leading path elements.
+ Pathnames with fewer elements will be silently skipped. Note that
+ the pathname is edited after applying the filter, but before
+ security checks. [Alias: `strip-components`, `stripComponents`]
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `preserveOwner` If true, tar will set the `uid` and `gid` of
+ extracted entries to the `uid` and `gid` fields in the archive.
+ This defaults to true when run as root, and false otherwise. If
+ false, then files and directories will be set with the owner and
+ group of the user running the process. This is similar to `-p` in
+ `tar(1)`, but ACLs and other system-specific data is never unpacked
+ in this implementation, and modes are set by default already.
+ [Alias: `p`]
+- `uid` Set to a number to force ownership of all extracted files and
+ folders, and all implicitly created directories, to be owned by the
+ specified user id, regardless of the `uid` field in the archive.
+ Cannot be used along with `preserveOwner`. Requires also setting a
+ `gid` option.
+- `gid` Set to a number to force ownership of all extracted files and
+ folders, and all implicitly created directories, to be owned by the
+ specified group id, regardless of the `gid` field in the archive.
+ Cannot be used along with `preserveOwner`. Requires also setting a
+ `uid` option.
+- `noMtime` Set to true to omit writing `mtime` value for extracted
+ entries. [Alias: `m`, `no-mtime`]
+- `transform` Provide a function that takes an `entry` object, and
+ returns a stream, or any falsey value. If a stream is provided,
+ then that stream's data will be written instead of the contents of
+ the archive entry. If a falsey value is provided, then the entry is
+ written to disk as normal. (To exclude items from extraction, use
+ the `filter` option described above.)
+- `onentry` A function that gets called with `(entry)` for each entry
+ that passes the filter.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `noChmod` Set to true to omit calling `fs.chmod()` to ensure that the
+ extracted file matches the entry mode. This also suppresses the call to
+ `process.umask()` to determine the default umask value, since tar will
+ extract with whatever mode is provided, and let the process `umask` apply
+ normally.
+
+The following options are mostly internal, but can be modified in some
+advanced use cases, such as re-using caches between runs.
+
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+ Defaults to 16 MB.
+- `umask` Filter the modes of entries like `process.umask()`.
+- `dmode` Default mode for directories
+- `fmode` Default mode for files
+- `dirCache` A Map object of which directories exist.
+- `maxMetaEntrySize` The maximum size of meta entries that is
+ supported. Defaults to 1 MB.
+
+Note that using an asynchronous stream type with the `transform`
+option will cause undefined behavior in sync extractions.
+[MiniPass](http://npm.im/minipass)-based streams are designed for this
+use case.
+
+### tar.t(options, fileList, callback) [alias: tar.list]
+
+List the contents of a tarball archive.
+
+The `fileList` is an array of paths to list from the tarball. If
+no paths are provided, then all the entries are listed.
+
+If the archive is gzipped, then tar will detect this and unzip it.
+
+Returns an event emitter that emits `entry` events with
+`tar.ReadEntry` objects. However, they don't emit `'data'` or `'end'`
+events. (If you want to get actual readable entries, use the
+`tar.Parse` class instead.)
+
+The following options are supported:
+
+- `cwd` Extract files relative to the specified directory. Defaults
+ to `process.cwd()`. [Alias: `C`]
+- `file` The archive file to list. If not specified, then a
+ Writable stream is returned where the archive data should be
+ written. [Alias: `f`]
+- `sync` Read the specified file synchronously. (This has no effect
+ when a file option isn't specified, because entries are emitted as
+ fast as they are parsed from the stream anyway.)
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `filter` A function that gets called with `(path, entry)` for each
+ entry being listed. Return `true` to emit the entry from the
+ archive, or `false` to skip it.
+- `onentry` A function that gets called with `(entry)` for each entry
+ that passes the filter. This is important for when both `file` and
+ `sync` are set, because it will be called synchronously.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+ Defaults to 16 MB.
+- `noResume` By default, `entry` streams are resumed immediately after
+ the call to `onentry`. Set `noResume: true` to suppress this
+ behavior. Note that by opting into this, the stream will never
+ complete until the entry data is consumed.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+
+### tar.u(options, fileList, callback) [alias: tar.update]
+
+Add files to an archive if they are newer than the entry already in
+the tarball archive.
+
+The `fileList` is an array of paths to add to the tarball. Adding a
+directory also adds its children recursively.
+
+An entry in `fileList` that starts with an `@` symbol is a tar archive
+whose entries will be added. To add a file that starts with `@`,
+prepend it with `./`.
+
+The following options are supported:
+
+- `file` Required. Write the tarball archive to the specified
+ filename. [Alias: `f`]
+- `sync` Act synchronously. If this is set, then any provided file
+ will be fully written after the call to `tar.c`.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `cwd` The current working directory for adding entries to the
+ archive. Defaults to `process.cwd()`. [Alias: `C`]
+- `prefix` A path portion to prefix onto the entries in the archive.
+- `gzip` Set to any truthy value to create a gzipped archive, or an
+ object with settings for `zlib.Gzip()` [Alias: `z`]
+- `filter` A function that gets called with `(path, stat)` for each
+ entry being added. Return `true` to add the entry to the archive,
+ or `false` to omit it.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+ `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note
+ that `mtime` is still included, because this is necessary for other
+ time-based operations. Additionally, `mode` is set to a "reasonable
+ default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths. By default, `/` is stripped
+ from absolute paths. [Alias: `P`]
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+ Defaults to 16 MB.
+- `noDirRecurse` Do not recursively archive the contents of
+ directories. [Alias: `n`]
+- `follow` Set to true to pack the targets of symbolic links. Without
+ this option, symbolic links are archived as such. [Alias: `L`, `h`]
+- `noPax` Suppress pax extended headers. Note that this means that
+ long paths and linkpaths will be truncated, and large or negative
+ numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+ Note that this prevents using other mtime-based features like
+ `tar.update` or the `keepNewer` option with the resulting tar archive.
+ [Alias: `m`, `no-mtime`]
+- `mtime` Set to a `Date` object to force a specific `mtime` for
+ everything added to the archive. Overridden by `noMtime`.
+
+### tar.r(options, fileList, callback) [alias: tar.replace]
+
+Add files to an existing archive. Because later entries override
+earlier entries, this effectively replaces any existing entries.
+
+The `fileList` is an array of paths to add to the tarball. Adding a
+directory also adds its children recursively.
+
+An entry in `fileList` that starts with an `@` symbol is a tar archive
+whose entries will be added. To add a file that starts with `@`,
+prepend it with `./`.
+
+The following options are supported:
+
+- `file` Required. Write the tarball archive to the specified
+ filename. [Alias: `f`]
+- `sync` Act synchronously. If this is set, then any provided file
+ will be fully written after the call to `tar.c`.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `cwd` The current working directory for adding entries to the
+ archive. Defaults to `process.cwd()`. [Alias: `C`]
+- `prefix` A path portion to prefix onto the entries in the archive.
+- `gzip` Set to any truthy value to create a gzipped archive, or an
+ object with settings for `zlib.Gzip()` [Alias: `z`]
+- `filter` A function that gets called with `(path, stat)` for each
+ entry being added. Return `true` to add the entry to the archive,
+ or `false` to omit it.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+ `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note
+ that `mtime` is still included, because this is necessary for other
+ time-based operations. Additionally, `mode` is set to a "reasonable
+ default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths. By default, `/` is stripped
+ from absolute paths. [Alias: `P`]
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+ Defaults to 16 MB.
+- `noDirRecurse` Do not recursively archive the contents of
+ directories. [Alias: `n`]
+- `follow` Set to true to pack the targets of symbolic links. Without
+ this option, symbolic links are archived as such. [Alias: `L`, `h`]
+- `noPax` Suppress pax extended headers. Note that this means that
+ long paths and linkpaths will be truncated, and large or negative
+ numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+ Note that this prevents using other mtime-based features like
+ `tar.update` or the `keepNewer` option with the resulting tar archive.
+ [Alias: `m`, `no-mtime`]
+- `mtime` Set to a `Date` object to force a specific `mtime` for
+ everything added to the archive. Overridden by `noMtime`.
+
+
+## Low-Level API
+
+### class tar.Pack
+
+A readable tar stream.
+
+Has all the standard readable stream interface stuff. `'data'` and
+`'end'` events, `read()` method, `pause()` and `resume()`, etc.
+
+#### constructor(options)
+
+The following options are supported:
+
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `cwd` The current working directory for creating the archive.
+ Defaults to `process.cwd()`.
+- `prefix` A path portion to prefix onto the entries in the archive.
+- `gzip` Set to any truthy value to create a gzipped archive, or an
+ object with settings for `zlib.Gzip()`
+- `filter` A function that gets called with `(path, stat)` for each
+ entry being added. Return `true` to add the entry to the archive,
+ or `false` to omit it.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+ `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note
+ that `mtime` is still included, because this is necessary for other
+ time-based operations. Additionally, `mode` is set to a "reasonable
+ default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths. By default, `/` is stripped
+ from absolute paths.
+- `linkCache` A Map object containing the device and inode value for
+ any file whose nlink is > 1, to identify hard links.
+- `statCache` A Map object that caches calls `lstat`.
+- `readdirCache` A Map object that caches calls to `readdir`.
+- `jobs` A number specifying how many concurrent jobs to run.
+ Defaults to 4.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+ Defaults to 16 MB.
+- `noDirRecurse` Do not recursively archive the contents of
+ directories.
+- `follow` Set to true to pack the targets of symbolic links. Without
+ this option, symbolic links are archived as such.
+- `noPax` Suppress pax extended headers. Note that this means that
+ long paths and linkpaths will be truncated, and large or negative
+ numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+ Note that this prevents using other mtime-based features like
+ `tar.update` or the `keepNewer` option with the resulting tar archive.
+- `mtime` Set to a `Date` object to force a specific `mtime` for
+ everything added to the archive. Overridden by `noMtime`.
+
+#### add(path)
+
+Adds an entry to the archive. Returns the Pack stream.
+
+#### write(path)
+
+Adds an entry to the archive. Returns true if flushed.
+
+#### end()
+
+Finishes the archive.
+
+### class tar.Pack.Sync
+
+Synchronous version of `tar.Pack`.
+
+### class tar.Unpack
+
+A writable stream that unpacks a tar archive onto the file system.
+
+All the normal writable stream stuff is supported. `write()` and
+`end()` methods, `'drain'` events, etc.
+
+Note that all directories that are created will be forced to be
+writable, readable, and listable by their owner, to avoid cases where
+a directory prevents extraction of child entries by virtue of its
+mode.
+
+`'close'` is emitted when it's done writing stuff to the file system.
+
+Most unpack errors will cause a `warn` event to be emitted. If the
+`cwd` is missing, or not a directory, then an error will be emitted.
+
+#### constructor(options)
+
+- `cwd` Extract files relative to the specified directory. Defaults
+ to `process.cwd()`. If provided, this must exist and must be a
+ directory.
+- `filter` A function that gets called with `(path, entry)` for each
+ entry being unpacked. Return `true` to unpack the entry from the
+ archive, or `false` to skip it.
+- `newer` Set to true to keep the existing file on disk if it's newer
+ than the file in the archive.
+- `keep` Do not overwrite existing files. In particular, if a file
+ appears more than once in an archive, later copies will not
+ overwrite earlier copies.
+- `preservePaths` Allow absolute paths, paths containing `..`, and
+ extracting through symbolic links. By default, `/` is stripped from
+ absolute paths, `..` paths are not extracted, and any file whose
+ location would be modified by a symbolic link is not extracted.
+- `unlink` Unlink files before creating them. Without this option,
+ tar overwrites existing files, which preserves existing hardlinks.
+ With this option, existing hardlinks will be broken, as will any
+ symlink that would affect the location of an extracted file.
+- `strip` Remove the specified number of leading path elements.
+ Pathnames with fewer elements will be silently skipped. Note that
+ the pathname is edited after applying the filter, but before
+ security checks.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `umask` Filter the modes of entries like `process.umask()`.
+- `dmode` Default mode for directories
+- `fmode` Default mode for files
+- `dirCache` A Map object of which directories exist.
+- `maxMetaEntrySize` The maximum size of meta entries that is
+ supported. Defaults to 1 MB.
+- `preserveOwner` If true, tar will set the `uid` and `gid` of
+ extracted entries to the `uid` and `gid` fields in the archive.
+ This defaults to true when run as root, and false otherwise. If
+ false, then files and directories will be set with the owner and
+ group of the user running the process. This is similar to `-p` in
+ `tar(1)`, but ACLs and other system-specific data is never unpacked
+ in this implementation, and modes are set by default already.
+- `win32` True if on a windows platform. Causes behavior where
+ filenames containing `<|>?` chars are converted to
+ windows-compatible values while being unpacked.
+- `uid` Set to a number to force ownership of all extracted files and
+ folders, and all implicitly created directories, to be owned by the
+ specified user id, regardless of the `uid` field in the archive.
+ Cannot be used along with `preserveOwner`. Requires also setting a
+ `gid` option.
+- `gid` Set to a number to force ownership of all extracted files and
+ folders, and all implicitly created directories, to be owned by the
+ specified group id, regardless of the `gid` field in the archive.
+ Cannot be used along with `preserveOwner`. Requires also setting a
+ `uid` option.
+- `noMtime` Set to true to omit writing `mtime` value for extracted
+ entries.
+- `transform` Provide a function that takes an `entry` object, and
+ returns a stream, or any falsey value. If a stream is provided,
+ then that stream's data will be written instead of the contents of
+ the archive entry. If a falsey value is provided, then the entry is
+ written to disk as normal. (To exclude items from extraction, use
+ the `filter` option described above.)
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `onentry` A function that gets called with `(entry)` for each entry
+ that passes the filter.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `noChmod` Set to true to omit calling `fs.chmod()` to ensure that the
+ extracted file matches the entry mode. This also suppresses the call to
+ `process.umask()` to determine the default umask value, since tar will
+ extract with whatever mode is provided, and let the process `umask` apply
+ normally.
+
+### class tar.Unpack.Sync
+
+Synchronous version of `tar.Unpack`.
+
+Note that using an asynchronous stream type with the `transform`
+option will cause undefined behavior in sync unpack streams.
+[MiniPass](http://npm.im/minipass)-based streams are designed for this
+use case.
+
+### class tar.Parse
+
+A writable stream that parses a tar archive stream. All the standard
+writable stream stuff is supported.
+
+If the archive is gzipped, then tar will detect this and unzip it.
+
+Emits `'entry'` events with `tar.ReadEntry` objects, which are
+themselves readable streams that you can pipe wherever.
+
+Each `entry` will not emit until the one before it is flushed through,
+so make sure to either consume the data (with `on('data', ...)` or
+`.pipe(...)`) or throw it away with `.resume()` to keep the stream
+flowing.
+
+#### constructor(options)
+
+Returns an event emitter that emits `entry` events with
+`tar.ReadEntry` objects.
+
+The following options are supported:
+
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `filter` A function that gets called with `(path, entry)` for each
+ entry being listed. Return `true` to emit the entry from the
+ archive, or `false` to skip it.
+- `onentry` A function that gets called with `(entry)` for each entry
+ that passes the filter.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+
+#### abort(error)
+
+Stop all parsing activities. This is called when there are zlib
+errors. It also emits an unrecoverable warning with the error provided.
+
+### class tar.ReadEntry extends [MiniPass](http://npm.im/minipass)
+
+A representation of an entry that is being read out of a tar archive.
+
+It has the following fields:
+
+- `extended` The extended metadata object provided to the constructor.
+- `globalExtended` The global extended metadata object provided to the
+ constructor.
+- `remain` The number of bytes remaining to be written into the
+ stream.
+- `blockRemain` The number of 512-byte blocks remaining to be written
+ into the stream.
+- `ignore` Whether this entry should be ignored.
+- `meta` True if this represents metadata about the next entry, false
+ if it represents a filesystem object.
+- All the fields from the header, extended header, and global extended
+ header are added to the ReadEntry object. So it has `path`, `type`,
+ `size`, `mode`, and so on.
+
+#### constructor(header, extended, globalExtended)
+
+Create a new ReadEntry object with the specified header, extended
+header, and global extended header values.
+
+### class tar.WriteEntry extends [MiniPass](http://npm.im/minipass)
+
+A representation of an entry that is being written from the file
+system into a tar archive.
+
+Emits data for the Header, and for the Pax Extended Header if one is
+required, as well as any body data.
+
+Creating a WriteEntry for a directory does not also create
+WriteEntry objects for all of the directory contents.
+
+It has the following fields:
+
+- `path` The path field that will be written to the archive. By
+ default, this is also the path from the cwd to the file system
+ object.
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+ `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note
+ that `mtime` is still included, because this is necessary for other
+ time-based operations. Additionally, `mode` is set to a "reasonable
+ default" for most unix systems, based on a `umask` value of `0o22`.
+- `myuid` If supported, the uid of the user running the current
+ process.
+- `myuser` The `env.USER` string if set, or `''`. Set as the entry
+ `uname` field if the file's `uid` matches `this.myuid`.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+ Defaults to 1 MB.
+- `linkCache` A Map object containing the device and inode value for
+ any file whose nlink is > 1, to identify hard links.
+- `statCache` A Map object that caches calls `lstat`.
+- `preservePaths` Allow absolute paths. By default, `/` is stripped
+ from absolute paths.
+- `cwd` The current working directory for creating the archive.
+ Defaults to `process.cwd()`.
+- `absolute` The absolute path to the entry on the filesystem. By
+ default, this is `path.resolve(this.cwd, this.path)`, but it can be
+ overridden explicitly.
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `win32` True if on a windows platform. Causes behavior where paths
+ replace `\` with `/` and filenames containing the windows-compatible
+ forms of `<|>?:` characters are converted to actual `<|>?:` characters
+ in the archive.
+- `noPax` Suppress pax extended headers. Note that this means that
+ long paths and linkpaths will be truncated, and large or negative
+ numeric values may be interpreted incorrectly.
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+ Note that this prevents using other mtime-based features like
+ `tar.update` or the `keepNewer` option with the resulting tar archive.
+
+
+#### constructor(path, options)
+
+`path` is the path of the entry as it is written in the archive.
+
+The following options are supported:
+
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+ `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note
+ that `mtime` is still included, because this is necessary for other
+ time-based operations. Additionally, `mode` is set to a "reasonable
+ default" for most unix systems, based on a `umask` value of `0o22`.
+- `maxReadSize` The maximum buffer size for `fs.read()` operations.
+ Defaults to 1 MB.
+- `linkCache` A Map object containing the device and inode value for
+ any file whose nlink is > 1, to identify hard links.
+- `statCache` A Map object that caches calls `lstat`.
+- `preservePaths` Allow absolute paths. By default, `/` is stripped
+ from absolute paths.
+- `cwd` The current working directory for creating the archive.
+ Defaults to `process.cwd()`.
+- `absolute` The absolute path to the entry on the filesystem. By
+ default, this is `path.resolve(this.cwd, this.path)`, but it can be
+ overridden explicitly.
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `win32` True if on a windows platform. Causes behavior where paths
+ replace `\` with `/`.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+ Note that this prevents using other mtime-based features like
+ `tar.update` or the `keepNewer` option with the resulting tar archive.
+- `umask` Set to restrict the modes on the entries in the archive,
+ somewhat like how umask works on file creation. Defaults to
+ `process.umask()` on unix systems, or `0o22` on Windows.
+
+#### warn(message, data)
+
+If strict, emit an error with the provided message.
+
+Othewise, emit a `'warn'` event with the provided message and data.
+
+### class tar.WriteEntry.Sync
+
+Synchronous version of tar.WriteEntry
+
+### class tar.WriteEntry.Tar
+
+A version of tar.WriteEntry that gets its data from a tar.ReadEntry
+instead of from the filesystem.
+
+#### constructor(readEntry, options)
+
+`readEntry` is the entry being read out of another archive.
+
+The following options are supported:
+
+- `portable` Omit metadata that is system-specific: `ctime`, `atime`,
+ `uid`, `gid`, `uname`, `gname`, `dev`, `ino`, and `nlink`. Note
+ that `mtime` is still included, because this is necessary for other
+ time-based operations. Additionally, `mode` is set to a "reasonable
+ default" for most unix systems, based on a `umask` value of `0o22`.
+- `preservePaths` Allow absolute paths. By default, `/` is stripped
+ from absolute paths.
+- `strict` Treat warnings as crash-worthy errors. Default false.
+- `onwarn` A function that will get called with `(code, message, data)` for
+ any warnings encountered. (See "Warnings and Errors")
+- `noMtime` Set to true to omit writing `mtime` values for entries.
+ Note that this prevents using other mtime-based features like
+ `tar.update` or the `keepNewer` option with the resulting tar archive.
+
+### class tar.Header
+
+A class for reading and writing header blocks.
+
+It has the following fields:
+
+- `nullBlock` True if decoding a block which is entirely composed of
+ `0x00` null bytes. (Useful because tar files are terminated by
+ at least 2 null blocks.)
+- `cksumValid` True if the checksum in the header is valid, false
+ otherwise.
+- `needPax` True if the values, as encoded, will require a Pax
+ extended header.
+- `path` The path of the entry.
+- `mode` The 4 lowest-order octal digits of the file mode. That is,
+ read/write/execute permissions for world, group, and owner, and the
+ setuid, setgid, and sticky bits.
+- `uid` Numeric user id of the file owner
+- `gid` Numeric group id of the file owner
+- `size` Size of the file in bytes
+- `mtime` Modified time of the file
+- `cksum` The checksum of the header. This is generated by adding all
+ the bytes of the header block, treating the checksum field itself as
+ all ascii space characters (that is, `0x20`).
+- `type` The human-readable name of the type of entry this represents,
+ or the alphanumeric key if unknown.
+- `typeKey` The alphanumeric key for the type of entry this header
+ represents.
+- `linkpath` The target of Link and SymbolicLink entries.
+- `uname` Human-readable user name of the file owner
+- `gname` Human-readable group name of the file owner
+- `devmaj` The major portion of the device number. Always `0` for
+ files, directories, and links.
+- `devmin` The minor portion of the device number. Always `0` for
+ files, directories, and links.
+- `atime` File access time.
+- `ctime` File change time.
+
+#### constructor(data, [offset=0])
+
+`data` is optional. It is either a Buffer that should be interpreted
+as a tar Header starting at the specified offset and continuing for
+512 bytes, or a data object of keys and values to set on the header
+object, and eventually encode as a tar Header.
+
+#### decode(block, offset)
+
+Decode the provided buffer starting at the specified offset.
+
+Buffer length must be greater than 512 bytes.
+
+#### set(data)
+
+Set the fields in the data object.
+
+#### encode(buffer, offset)
+
+Encode the header fields into the buffer at the specified offset.
+
+Returns `this.needPax` to indicate whether a Pax Extended Header is
+required to properly encode the specified data.
+
+### class tar.Pax
+
+An object representing a set of key-value pairs in an Pax extended
+header entry.
+
+It has the following fields. Where the same name is used, they have
+the same semantics as the tar.Header field of the same name.
+
+- `global` True if this represents a global extended header, or false
+ if it is for a single entry.
+- `atime`
+- `charset`
+- `comment`
+- `ctime`
+- `gid`
+- `gname`
+- `linkpath`
+- `mtime`
+- `path`
+- `size`
+- `uid`
+- `uname`
+- `dev`
+- `ino`
+- `nlink`
+
+#### constructor(object, global)
+
+Set the fields set in the object. `global` is a boolean that defaults
+to false.
+
+#### encode()
+
+Return a Buffer containing the header and body for the Pax extended
+header entry, or `null` if there is nothing to encode.
+
+#### encodeBody()
+
+Return a string representing the body of the pax extended header
+entry.
+
+#### encodeField(fieldName)
+
+Return a string representing the key/value encoding for the specified
+fieldName, or `''` if the field is unset.
+
+### tar.Pax.parse(string, extended, global)
+
+Return a new Pax object created by parsing the contents of the string
+provided.
+
+If the `extended` object is set, then also add the fields from that
+object. (This is necessary because multiple metadata entries can
+occur in sequence.)
+
+### tar.types
+
+A translation table for the `type` field in tar headers.
+
+#### tar.types.name.get(code)
+
+Get the human-readable name for a given alphanumeric code.
+
+#### tar.types.code.get(name)
+
+Get the alphanumeric code for a given human-readable name.
diff --git a/backend/node_modules/tar/index.js b/backend/node_modules/tar/index.js
new file mode 100644
index 0000000..c9ae06e
--- /dev/null
+++ b/backend/node_modules/tar/index.js
@@ -0,0 +1,18 @@
+'use strict'
+
+// high-level commands
+exports.c = exports.create = require('./lib/create.js')
+exports.r = exports.replace = require('./lib/replace.js')
+exports.t = exports.list = require('./lib/list.js')
+exports.u = exports.update = require('./lib/update.js')
+exports.x = exports.extract = require('./lib/extract.js')
+
+// classes
+exports.Pack = require('./lib/pack.js')
+exports.Unpack = require('./lib/unpack.js')
+exports.Parse = require('./lib/parse.js')
+exports.ReadEntry = require('./lib/read-entry.js')
+exports.WriteEntry = require('./lib/write-entry.js')
+exports.Header = require('./lib/header.js')
+exports.Pax = require('./lib/pax.js')
+exports.types = require('./lib/types.js')
diff --git a/backend/node_modules/tar/lib/create.js b/backend/node_modules/tar/lib/create.js
new file mode 100644
index 0000000..d033640
--- /dev/null
+++ b/backend/node_modules/tar/lib/create.js
@@ -0,0 +1,104 @@
+'use strict'
+
+// tar -c
+const hlo = require('./high-level-opt.js')
+
+const Pack = require('./pack.js')
+const fsm = require('fs-minipass')
+const t = require('./list.js')
+const path = require('path')
+
+module.exports = (opt_, files, cb) => {
+ if (typeof files === 'function')
+ cb = files
+
+ if (Array.isArray(opt_))
+ files = opt_, opt_ = {}
+
+ if (!files || !Array.isArray(files) || !files.length)
+ throw new TypeError('no files or directories specified')
+
+ files = Array.from(files)
+
+ const opt = hlo(opt_)
+
+ if (opt.sync && typeof cb === 'function')
+ throw new TypeError('callback not supported for sync tar functions')
+
+ if (!opt.file && typeof cb === 'function')
+ throw new TypeError('callback only supported with file option')
+
+ return opt.file && opt.sync ? createFileSync(opt, files)
+ : opt.file ? createFile(opt, files, cb)
+ : opt.sync ? createSync(opt, files)
+ : create(opt, files)
+}
+
+const createFileSync = (opt, files) => {
+ const p = new Pack.Sync(opt)
+ const stream = new fsm.WriteStreamSync(opt.file, {
+ mode: opt.mode || 0o666,
+ })
+ p.pipe(stream)
+ addFilesSync(p, files)
+}
+
+const createFile = (opt, files, cb) => {
+ const p = new Pack(opt)
+ const stream = new fsm.WriteStream(opt.file, {
+ mode: opt.mode || 0o666,
+ })
+ p.pipe(stream)
+
+ const promise = new Promise((res, rej) => {
+ stream.on('error', rej)
+ stream.on('close', res)
+ p.on('error', rej)
+ })
+
+ addFilesAsync(p, files)
+
+ return cb ? promise.then(cb, cb) : promise
+}
+
+const addFilesSync = (p, files) => {
+ files.forEach(file => {
+ if (file.charAt(0) === '@') {
+ t({
+ file: path.resolve(p.cwd, file.substr(1)),
+ sync: true,
+ noResume: true,
+ onentry: entry => p.add(entry),
+ })
+ } else
+ p.add(file)
+ })
+ p.end()
+}
+
+const addFilesAsync = (p, files) => {
+ while (files.length) {
+ const file = files.shift()
+ if (file.charAt(0) === '@') {
+ return t({
+ file: path.resolve(p.cwd, file.substr(1)),
+ noResume: true,
+ onentry: entry => p.add(entry),
+ }).then(_ => addFilesAsync(p, files))
+ } else
+ p.add(file)
+ }
+ p.end()
+}
+
+const createSync = (opt, files) => {
+ const p = new Pack.Sync(opt)
+ addFilesSync(p, files)
+ return p
+}
+
+const create = (opt, files) => {
+ const p = new Pack(opt)
+ addFilesAsync(p, files)
+ return p
+}
diff --git a/backend/node_modules/tar/lib/extract.js b/backend/node_modules/tar/lib/extract.js
new file mode 100644
index 0000000..98e946e
--- /dev/null
+++ b/backend/node_modules/tar/lib/extract.js
@@ -0,0 +1,107 @@
+'use strict'
+
+// tar -x
+const hlo = require('./high-level-opt.js')
+const Unpack = require('./unpack.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+const stripSlash = require('./strip-trailing-slashes.js')
+
+module.exports = (opt_, files, cb) => {
+ if (typeof opt_ === 'function')
+ cb = opt_, files = null, opt_ = {}
+ else if (Array.isArray(opt_))
+ files = opt_, opt_ = {}
+
+ if (typeof files === 'function')
+ cb = files, files = null
+
+ if (!files)
+ files = []
+ else
+ files = Array.from(files)
+
+ const opt = hlo(opt_)
+
+ if (opt.sync && typeof cb === 'function')
+ throw new TypeError('callback not supported for sync tar functions')
+
+ if (!opt.file && typeof cb === 'function')
+ throw new TypeError('callback only supported with file option')
+
+ if (files.length)
+ filesFilter(opt, files)
+
+ return opt.file && opt.sync ? extractFileSync(opt)
+ : opt.file ? extractFile(opt, cb)
+ : opt.sync ? extractSync(opt)
+ : extract(opt)
+}
+
+// construct a filter that limits the file entries listed
+// include child entries if a dir is included
+const filesFilter = (opt, files) => {
+ const map = new Map(files.map(f => [stripSlash(f), true]))
+ const filter = opt.filter
+
+ const mapHas = (file, r) => {
+ const root = r || path.parse(file).root || '.'
+ const ret = file === root ? false
+ : map.has(file) ? map.get(file)
+ : mapHas(path.dirname(file), root)
+
+ map.set(file, ret)
+ return ret
+ }
+
+ opt.filter = filter
+ ? (file, entry) => filter(file, entry) && mapHas(stripSlash(file))
+ : file => mapHas(stripSlash(file))
+}
+
+const extractFileSync = opt => {
+ const u = new Unpack.Sync(opt)
+
+ const file = opt.file
+ const stat = fs.statSync(file)
+ // This trades a zero-byte read() syscall for a stat
+ // However, it will usually result in less memory allocation
+ const readSize = opt.maxReadSize || 16 * 1024 * 1024
+ const stream = new fsm.ReadStreamSync(file, {
+ readSize: readSize,
+ size: stat.size,
+ })
+ stream.pipe(u)
+}
+
+const extractFile = (opt, cb) => {
+ const u = new Unpack(opt)
+ const readSize = opt.maxReadSize || 16 * 1024 * 1024
+
+ const file = opt.file
+ const p = new Promise((resolve, reject) => {
+ u.on('error', reject)
+ u.on('close', resolve)
+
+ // This trades a zero-byte read() syscall for a stat
+ // However, it will usually result in less memory allocation
+ fs.stat(file, (er, stat) => {
+ if (er)
+ reject(er)
+ else {
+ const stream = new fsm.ReadStream(file, {
+ readSize: readSize,
+ size: stat.size,
+ })
+ stream.on('error', reject)
+ stream.pipe(u)
+ }
+ })
+ })
+ return cb ? p.then(cb, cb) : p
+}
+
+const extractSync = opt => new Unpack.Sync(opt)
+
+const extract = opt => new Unpack(opt)
diff --git a/backend/node_modules/tar/lib/get-write-flag.js b/backend/node_modules/tar/lib/get-write-flag.js
new file mode 100644
index 0000000..e869599
--- /dev/null
+++ b/backend/node_modules/tar/lib/get-write-flag.js
@@ -0,0 +1,20 @@
+// Get the appropriate flag to use for creating files
+// We use fmap on Windows platforms for files less than
+// 512kb. This is a fairly low limit, but avoids making
+// things slower in some cases. Since most of what this
+// library is used for is extracting tarballs of many
+// relatively small files in npm packages and the like,
+// it can be a big boost on Windows platforms.
+// Only supported in Node v12.9.0 and above.
+const platform = process.env.__FAKE_PLATFORM__ || process.platform
+const isWindows = platform === 'win32'
+const fs = global.__FAKE_TESTING_FS__ || require('fs')
+
+/* istanbul ignore next */
+const { O_CREAT, O_TRUNC, O_WRONLY, UV_FS_O_FILEMAP = 0 } = fs.constants
+
+const fMapEnabled = isWindows && !!UV_FS_O_FILEMAP
+const fMapLimit = 512 * 1024
+const fMapFlag = UV_FS_O_FILEMAP | O_TRUNC | O_CREAT | O_WRONLY
+module.exports = !fMapEnabled ? () => 'w'
+ : size => size < fMapLimit ? fMapFlag : 'w'
diff --git a/backend/node_modules/tar/lib/header.js b/backend/node_modules/tar/lib/header.js
new file mode 100644
index 0000000..1295040
--- /dev/null
+++ b/backend/node_modules/tar/lib/header.js
@@ -0,0 +1,288 @@
+'use strict'
+// parse a 512-byte header block to a data object, or vice-versa
+// encode returns `true` if a pax extended header is needed, because
+// the data could not be faithfully encoded in a simple header.
+// (Also, check header.needPax to see if it needs a pax header.)
+
+const types = require('./types.js')
+const pathModule = require('path').posix
+const large = require('./large-numbers.js')
+
+const SLURP = Symbol('slurp')
+const TYPE = Symbol('type')
+
+class Header {
+ constructor (data, off, ex, gex) {
+ this.cksumValid = false
+ this.needPax = false
+ this.nullBlock = false
+
+ this.block = null
+ this.path = null
+ this.mode = null
+ this.uid = null
+ this.gid = null
+ this.size = null
+ this.mtime = null
+ this.cksum = null
+ this[TYPE] = '0'
+ this.linkpath = null
+ this.uname = null
+ this.gname = null
+ this.devmaj = 0
+ this.devmin = 0
+ this.atime = null
+ this.ctime = null
+
+ if (Buffer.isBuffer(data))
+ this.decode(data, off || 0, ex, gex)
+ else if (data)
+ this.set(data)
+ }
+
+ decode (buf, off, ex, gex) {
+ if (!off)
+ off = 0
+
+ if (!buf || !(buf.length >= off + 512))
+ throw new Error('need 512 bytes for header')
+
+ this.path = decString(buf, off, 100)
+ this.mode = decNumber(buf, off + 100, 8)
+ this.uid = decNumber(buf, off + 108, 8)
+ this.gid = decNumber(buf, off + 116, 8)
+ this.size = decNumber(buf, off + 124, 12)
+ this.mtime = decDate(buf, off + 136, 12)
+ this.cksum = decNumber(buf, off + 148, 12)
+
+ // if we have extended or global extended headers, apply them now
+ // See https://github.com/npm/node-tar/pull/187
+ this[SLURP](ex)
+ this[SLURP](gex, true)
+
+ // old tar versions marked dirs as a file with a trailing /
+ this[TYPE] = decString(buf, off + 156, 1)
+ if (this[TYPE] === '')
+ this[TYPE] = '0'
+ if (this[TYPE] === '0' && this.path.substr(-1) === '/')
+ this[TYPE] = '5'
+
+ // tar implementations sometimes incorrectly put the stat(dir).size
+ // as the size in the tarball, even though Directory entries are
+ // not able to have any body at all. In the very rare chance that
+ // it actually DOES have a body, we weren't going to do anything with
+ // it anyway, and it'll just be a warning about an invalid header.
+ if (this[TYPE] === '5')
+ this.size = 0
+
+ this.linkpath = decString(buf, off + 157, 100)
+ if (buf.slice(off + 257, off + 265).toString() === 'ustar\u000000') {
+ this.uname = decString(buf, off + 265, 32)
+ this.gname = decString(buf, off + 297, 32)
+ this.devmaj = decNumber(buf, off + 329, 8)
+ this.devmin = decNumber(buf, off + 337, 8)
+ if (buf[off + 475] !== 0) {
+ // definitely a prefix, definitely >130 chars.
+ const prefix = decString(buf, off + 345, 155)
+ this.path = prefix + '/' + this.path
+ } else {
+ const prefix = decString(buf, off + 345, 130)
+ if (prefix)
+ this.path = prefix + '/' + this.path
+ this.atime = decDate(buf, off + 476, 12)
+ this.ctime = decDate(buf, off + 488, 12)
+ }
+ }
+
+ let sum = 8 * 0x20
+ for (let i = off; i < off + 148; i++)
+ sum += buf[i]
+
+ for (let i = off + 156; i < off + 512; i++)
+ sum += buf[i]
+
+ this.cksumValid = sum === this.cksum
+ if (this.cksum === null && sum === 8 * 0x20)
+ this.nullBlock = true
+ }
+
+ [SLURP] (ex, global) {
+ for (const k in ex) {
+ // we slurp in everything except for the path attribute in
+ // a global extended header, because that's weird.
+ if (ex[k] !== null && ex[k] !== undefined &&
+ !(global && k === 'path'))
+ this[k] = ex[k]
+ }
+ }
+
+ encode (buf, off) {
+ if (!buf) {
+ buf = this.block = Buffer.alloc(512)
+ off = 0
+ }
+
+ if (!off)
+ off = 0
+
+ if (!(buf.length >= off + 512))
+ throw new Error('need 512 bytes for header')
+
+ const prefixSize = this.ctime || this.atime ? 130 : 155
+ const split = splitPrefix(this.path || '', prefixSize)
+ const path = split[0]
+ const prefix = split[1]
+ this.needPax = split[2]
+
+ this.needPax = encString(buf, off, 100, path) || this.needPax
+ this.needPax = encNumber(buf, off + 100, 8, this.mode) || this.needPax
+ this.needPax = encNumber(buf, off + 108, 8, this.uid) || this.needPax
+ this.needPax = encNumber(buf, off + 116, 8, this.gid) || this.needPax
+ this.needPax = encNumber(buf, off + 124, 12, this.size) || this.needPax
+ this.needPax = encDate(buf, off + 136, 12, this.mtime) || this.needPax
+ buf[off + 156] = this[TYPE].charCodeAt(0)
+ this.needPax = encString(buf, off + 157, 100, this.linkpath) || this.needPax
+ buf.write('ustar\u000000', off + 257, 8)
+ this.needPax = encString(buf, off + 265, 32, this.uname) || this.needPax
+ this.needPax = encString(buf, off + 297, 32, this.gname) || this.needPax
+ this.needPax = encNumber(buf, off + 329, 8, this.devmaj) || this.needPax
+ this.needPax = encNumber(buf, off + 337, 8, this.devmin) || this.needPax
+ this.needPax = encString(buf, off + 345, prefixSize, prefix) || this.needPax
+ if (buf[off + 475] !== 0)
+ this.needPax = encString(buf, off + 345, 155, prefix) || this.needPax
+ else {
+ this.needPax = encString(buf, off + 345, 130, prefix) || this.needPax
+ this.needPax = encDate(buf, off + 476, 12, this.atime) || this.needPax
+ this.needPax = encDate(buf, off + 488, 12, this.ctime) || this.needPax
+ }
+
+ let sum = 8 * 0x20
+ for (let i = off; i < off + 148; i++)
+ sum += buf[i]
+
+ for (let i = off + 156; i < off + 512; i++)
+ sum += buf[i]
+
+ this.cksum = sum
+ encNumber(buf, off + 148, 8, this.cksum)
+ this.cksumValid = true
+
+ return this.needPax
+ }
+
+ set (data) {
+ for (const i in data) {
+ if (data[i] !== null && data[i] !== undefined)
+ this[i] = data[i]
+ }
+ }
+
+ get type () {
+ return types.name.get(this[TYPE]) || this[TYPE]
+ }
+
+ get typeKey () {
+ return this[TYPE]
+ }
+
+ set type (type) {
+ if (types.code.has(type))
+ this[TYPE] = types.code.get(type)
+ else
+ this[TYPE] = type
+ }
+}
+
+const splitPrefix = (p, prefixSize) => {
+ const pathSize = 100
+ let pp = p
+ let prefix = ''
+ let ret
+ const root = pathModule.parse(p).root || '.'
+
+ if (Buffer.byteLength(pp) < pathSize)
+ ret = [pp, prefix, false]
+ else {
+ // first set prefix to the dir, and path to the base
+ prefix = pathModule.dirname(pp)
+ pp = pathModule.basename(pp)
+
+ do {
+ // both fit!
+ if (Buffer.byteLength(pp) <= pathSize &&
+ Buffer.byteLength(prefix) <= prefixSize)
+ ret = [pp, prefix, false]
+
+ // prefix fits in prefix, but path doesn't fit in path
+ else if (Buffer.byteLength(pp) > pathSize &&
+ Buffer.byteLength(prefix) <= prefixSize)
+ ret = [pp.substr(0, pathSize - 1), prefix, true]
+
+ else {
+ // make path take a bit from prefix
+ pp = pathModule.join(pathModule.basename(prefix), pp)
+ prefix = pathModule.dirname(prefix)
+ }
+ } while (prefix !== root && !ret)
+
+ // at this point, found no resolution, just truncate
+ if (!ret)
+ ret = [p.substr(0, pathSize - 1), '', true]
+ }
+ return ret
+}
+
+const decString = (buf, off, size) =>
+ buf.slice(off, off + size).toString('utf8').replace(/\0.*/, '')
+
+const decDate = (buf, off, size) =>
+ numToDate(decNumber(buf, off, size))
+
+const numToDate = num => num === null ? null : new Date(num * 1000)
+
+const decNumber = (buf, off, size) =>
+ buf[off] & 0x80 ? large.parse(buf.slice(off, off + size))
+ : decSmallNumber(buf, off, size)
+
+const nanNull = value => isNaN(value) ? null : value
+
+const decSmallNumber = (buf, off, size) =>
+ nanNull(parseInt(
+ buf.slice(off, off + size)
+ .toString('utf8').replace(/\0.*$/, '').trim(), 8))
+
+// the maximum encodable as a null-terminated octal, by field size
+const MAXNUM = {
+ 12: 0o77777777777,
+ 8: 0o7777777,
+}
+
+const encNumber = (buf, off, size, number) =>
+ number === null ? false :
+ number > MAXNUM[size] || number < 0
+ ? (large.encode(number, buf.slice(off, off + size)), true)
+ : (encSmallNumber(buf, off, size, number), false)
+
+const encSmallNumber = (buf, off, size, number) =>
+ buf.write(octalString(number, size), off, size, 'ascii')
+
+const octalString = (number, size) =>
+ padOctal(Math.floor(number).toString(8), size)
+
+const padOctal = (string, size) =>
+ (string.length === size - 1 ? string
+ : new Array(size - string.length - 1).join('0') + string + ' ') + '\0'
+
+const encDate = (buf, off, size, date) =>
+ date === null ? false :
+ encNumber(buf, off, size, date.getTime() / 1000)
+
+// enough to fill the longest string we've got
+const NULLS = new Array(156).join('\0')
+// pad with nulls, return true if it's longer or non-ascii
+const encString = (buf, off, size, string) =>
+ string === null ? false :
+ (buf.write(string + NULLS, off, size, 'utf8'),
+ string.length !== Buffer.byteLength(string) || string.length > size)
+
+module.exports = Header
diff --git a/backend/node_modules/tar/lib/high-level-opt.js b/backend/node_modules/tar/lib/high-level-opt.js
new file mode 100644
index 0000000..40e4418
--- /dev/null
+++ b/backend/node_modules/tar/lib/high-level-opt.js
@@ -0,0 +1,29 @@
+'use strict'
+
+// turn tar(1) style args like `C` into the more verbose things like `cwd`
+
+const argmap = new Map([
+ ['C', 'cwd'],
+ ['f', 'file'],
+ ['z', 'gzip'],
+ ['P', 'preservePaths'],
+ ['U', 'unlink'],
+ ['strip-components', 'strip'],
+ ['stripComponents', 'strip'],
+ ['keep-newer', 'newer'],
+ ['keepNewer', 'newer'],
+ ['keep-newer-files', 'newer'],
+ ['keepNewerFiles', 'newer'],
+ ['k', 'keep'],
+ ['keep-existing', 'keep'],
+ ['keepExisting', 'keep'],
+ ['m', 'noMtime'],
+ ['no-mtime', 'noMtime'],
+ ['p', 'preserveOwner'],
+ ['L', 'follow'],
+ ['h', 'follow'],
+])
+
+module.exports = opt => opt ? Object.keys(opt).map(k => [
+ argmap.has(k) ? argmap.get(k) : k, opt[k],
+]).reduce((set, kv) => (set[kv[0]] = kv[1], set), Object.create(null)) : {}
diff --git a/backend/node_modules/tar/lib/large-numbers.js b/backend/node_modules/tar/lib/large-numbers.js
new file mode 100644
index 0000000..dd6f690
--- /dev/null
+++ b/backend/node_modules/tar/lib/large-numbers.js
@@ -0,0 +1,99 @@
+'use strict'
+// Tar can encode large and negative numbers using a leading byte of
+// 0xff for negative, and 0x80 for positive.
+
+const encode = (num, buf) => {
+ if (!Number.isSafeInteger(num))
+ // The number is so large that javascript cannot represent it with integer
+ // precision.
+ throw Error('cannot encode number outside of javascript safe integer range')
+ else if (num < 0)
+ encodeNegative(num, buf)
+ else
+ encodePositive(num, buf)
+ return buf
+}
+
+const encodePositive = (num, buf) => {
+ buf[0] = 0x80
+
+ for (var i = buf.length; i > 1; i--) {
+ buf[i - 1] = num & 0xff
+ num = Math.floor(num / 0x100)
+ }
+}
+
+const encodeNegative = (num, buf) => {
+ buf[0] = 0xff
+ var flipped = false
+ num = num * -1
+ for (var i = buf.length; i > 1; i--) {
+ var byte = num & 0xff
+ num = Math.floor(num / 0x100)
+ if (flipped)
+ buf[i - 1] = onesComp(byte)
+ else if (byte === 0)
+ buf[i - 1] = 0
+ else {
+ flipped = true
+ buf[i - 1] = twosComp(byte)
+ }
+ }
+}
+
+const parse = (buf) => {
+ const pre = buf[0]
+ const value = pre === 0x80 ? pos(buf.slice(1, buf.length))
+ : pre === 0xff ? twos(buf)
+ : null
+ if (value === null)
+ throw Error('invalid base256 encoding')
+
+ if (!Number.isSafeInteger(value))
+ // The number is so large that javascript cannot represent it with integer
+ // precision.
+ throw Error('parsed number outside of javascript safe integer range')
+
+ return value
+}
+
+const twos = (buf) => {
+ var len = buf.length
+ var sum = 0
+ var flipped = false
+ for (var i = len - 1; i > -1; i--) {
+ var byte = buf[i]
+ var f
+ if (flipped)
+ f = onesComp(byte)
+ else if (byte === 0)
+ f = byte
+ else {
+ flipped = true
+ f = twosComp(byte)
+ }
+ if (f !== 0)
+ sum -= f * Math.pow(256, len - i - 1)
+ }
+ return sum
+}
+
+const pos = (buf) => {
+ var len = buf.length
+ var sum = 0
+ for (var i = len - 1; i > -1; i--) {
+ var byte = buf[i]
+ if (byte !== 0)
+ sum += byte * Math.pow(256, len - i - 1)
+ }
+ return sum
+}
+
+const onesComp = byte => (0xff ^ byte) & 0xff
+
+const twosComp = byte => ((0xff ^ byte) + 1) & 0xff
+
+module.exports = {
+ encode,
+ parse,
+}
diff --git a/backend/node_modules/tar/lib/list.js b/backend/node_modules/tar/lib/list.js
new file mode 100644
index 0000000..a0c1cf2
--- /dev/null
+++ b/backend/node_modules/tar/lib/list.js
@@ -0,0 +1,132 @@
+'use strict'
+
+// XXX: This shares a lot in common with extract.js
+// maybe some DRY opportunity here?
+
+// tar -t
+const hlo = require('./high-level-opt.js')
+const Parser = require('./parse.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+const stripSlash = require('./strip-trailing-slashes.js')
+
+module.exports = (opt_, files, cb) => {
+ if (typeof opt_ === 'function')
+ cb = opt_, files = null, opt_ = {}
+ else if (Array.isArray(opt_))
+ files = opt_, opt_ = {}
+
+ if (typeof files === 'function')
+ cb = files, files = null
+
+ if (!files)
+ files = []
+ else
+ files = Array.from(files)
+
+ const opt = hlo(opt_)
+
+ if (opt.sync && typeof cb === 'function')
+ throw new TypeError('callback not supported for sync tar functions')
+
+ if (!opt.file && typeof cb === 'function')
+ throw new TypeError('callback only supported with file option')
+
+ if (files.length)
+ filesFilter(opt, files)
+
+ if (!opt.noResume)
+ onentryFunction(opt)
+
+ return opt.file && opt.sync ? listFileSync(opt)
+ : opt.file ? listFile(opt, cb)
+ : list(opt)
+}
+
+const onentryFunction = opt => {
+ const onentry = opt.onentry
+ opt.onentry = onentry ? e => {
+ onentry(e)
+ e.resume()
+ } : e => e.resume()
+}
+
+// construct a filter that limits the file entries listed
+// include child entries if a dir is included
+const filesFilter = (opt, files) => {
+ const map = new Map(files.map(f => [stripSlash(f), true]))
+ const filter = opt.filter
+
+ const mapHas = (file, r) => {
+ const root = r || path.parse(file).root || '.'
+ const ret = file === root ? false
+ : map.has(file) ? map.get(file)
+ : mapHas(path.dirname(file), root)
+
+ map.set(file, ret)
+ return ret
+ }
+
+ opt.filter = filter
+ ? (file, entry) => filter(file, entry) && mapHas(stripSlash(file))
+ : file => mapHas(stripSlash(file))
+}
+
+const listFileSync = opt => {
+ const p = list(opt)
+ const file = opt.file
+ let threw = true
+ let fd
+ try {
+ const stat = fs.statSync(file)
+ const readSize = opt.maxReadSize || 16 * 1024 * 1024
+ if (stat.size < readSize)
+ p.end(fs.readFileSync(file))
+ else {
+ let pos = 0
+ const buf = Buffer.allocUnsafe(readSize)
+ fd = fs.openSync(file, 'r')
+ while (pos < stat.size) {
+ const bytesRead = fs.readSync(fd, buf, 0, readSize, pos)
+ pos += bytesRead
+ p.write(buf.slice(0, bytesRead))
+ }
+ p.end()
+ }
+ threw = false
+ } finally {
+ if (threw && fd) {
+ try {
+ fs.closeSync(fd)
+ } catch (er) {}
+ }
+ }
+}
+
+const listFile = (opt, cb) => {
+ const parse = new Parser(opt)
+ const readSize = opt.maxReadSize || 16 * 1024 * 1024
+
+ const file = opt.file
+ const p = new Promise((resolve, reject) => {
+ parse.on('error', reject)
+ parse.on('end', resolve)
+
+ fs.stat(file, (er, stat) => {
+ if (er)
+ reject(er)
+ else {
+ const stream = new fsm.ReadStream(file, {
+ readSize: readSize,
+ size: stat.size,
+ })
+ stream.on('error', reject)
+ stream.pipe(parse)
+ }
+ })
+ })
+ return cb ? p.then(cb, cb) : p
+}
+
+const list = opt => new Parser(opt)
diff --git a/backend/node_modules/tar/lib/mkdir.js b/backend/node_modules/tar/lib/mkdir.js
new file mode 100644
index 0000000..a0719e6
--- /dev/null
+++ b/backend/node_modules/tar/lib/mkdir.js
@@ -0,0 +1,213 @@
+'use strict'
+// wrapper around mkdirp for tar's needs.
+
+// TODO: This should probably be a class, not functionally
+// passing around state in a gazillion args.
+
+const mkdirp = require('mkdirp')
+const fs = require('fs')
+const path = require('path')
+const chownr = require('chownr')
+const normPath = require('./normalize-windows-path.js')
+
+class SymlinkError extends Error {
+ constructor (symlink, path) {
+ super('Cannot extract through symbolic link')
+ this.path = path
+ this.symlink = symlink
+ }
+
+ get name () {
+ return 'SylinkError'
+ }
+}
+
+class CwdError extends Error {
+ constructor (path, code) {
+ super(code + ': Cannot cd into \'' + path + '\'')
+ this.path = path
+ this.code = code
+ }
+
+ get name () {
+ return 'CwdError'
+ }
+}
+
+const cGet = (cache, key) => cache.get(normPath(key))
+const cSet = (cache, key, val) => cache.set(normPath(key), val)
+
+const checkCwd = (dir, cb) => {
+ fs.stat(dir, (er, st) => {
+ if (er || !st.isDirectory())
+ er = new CwdError(dir, er && er.code || 'ENOTDIR')
+ cb(er)
+ })
+}
+
+module.exports = (dir, opt, cb) => {
+ dir = normPath(dir)
+
+ // if there's any overlap between mask and mode,
+ // then we'll need an explicit chmod
+ const umask = opt.umask
+ const mode = opt.mode | 0o0700
+ const needChmod = (mode & umask) !== 0
+
+ const uid = opt.uid
+ const gid = opt.gid
+ const doChown = typeof uid === 'number' &&
+ typeof gid === 'number' &&
+ (uid !== opt.processUid || gid !== opt.processGid)
+
+ const preserve = opt.preserve
+ const unlink = opt.unlink
+ const cache = opt.cache
+ const cwd = normPath(opt.cwd)
+
+ const done = (er, created) => {
+ if (er)
+ cb(er)
+ else {
+ cSet(cache, dir, true)
+ if (created && doChown)
+ chownr(created, uid, gid, er => done(er))
+ else if (needChmod)
+ fs.chmod(dir, mode, cb)
+ else
+ cb()
+ }
+ }
+
+ if (cache && cGet(cache, dir) === true)
+ return done()
+
+ if (dir === cwd)
+ return checkCwd(dir, done)
+
+ if (preserve)
+ return mkdirp(dir, {mode}).then(made => done(null, made), done)
+
+ const sub = normPath(path.relative(cwd, dir))
+ const parts = sub.split('/')
+ mkdir_(cwd, parts, mode, cache, unlink, cwd, null, done)
+}
+
+const mkdir_ = (base, parts, mode, cache, unlink, cwd, created, cb) => {
+ if (!parts.length)
+ return cb(null, created)
+ const p = parts.shift()
+ const part = normPath(path.resolve(base + '/' + p))
+ if (cGet(cache, part))
+ return mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
+ fs.mkdir(part, mode, onmkdir(part, parts, mode, cache, unlink, cwd, created, cb))
+}
+
+const onmkdir = (part, parts, mode, cache, unlink, cwd, created, cb) => er => {
+ if (er) {
+ fs.lstat(part, (statEr, st) => {
+ if (statEr) {
+ statEr.path = statEr.path && normPath(statEr.path)
+ cb(statEr)
+ } else if (st.isDirectory())
+ mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
+ else if (unlink) {
+ fs.unlink(part, er => {
+ if (er)
+ return cb(er)
+ fs.mkdir(part, mode, onmkdir(part, parts, mode, cache, unlink, cwd, created, cb))
+ })
+ } else if (st.isSymbolicLink())
+ return cb(new SymlinkError(part, part + '/' + parts.join('/')))
+ else
+ cb(er)
+ })
+ } else {
+ created = created || part
+ mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
+ }
+}
+
+const checkCwdSync = dir => {
+ let ok = false
+ let code = 'ENOTDIR'
+ try {
+ ok = fs.statSync(dir).isDirectory()
+ } catch (er) {
+ code = er.code
+ } finally {
+ if (!ok)
+ throw new CwdError(dir, code)
+ }
+}
+
+module.exports.sync = (dir, opt) => {
+ dir = normPath(dir)
+ // if there's any overlap between mask and mode,
+ // then we'll need an explicit chmod
+ const umask = opt.umask
+ const mode = opt.mode | 0o0700
+ const needChmod = (mode & umask) !== 0
+
+ const uid = opt.uid
+ const gid = opt.gid
+ const doChown = typeof uid === 'number' &&
+ typeof gid === 'number' &&
+ (uid !== opt.processUid || gid !== opt.processGid)
+
+ const preserve = opt.preserve
+ const unlink = opt.unlink
+ const cache = opt.cache
+ const cwd = normPath(opt.cwd)
+
+ const done = (created) => {
+ cSet(cache, dir, true)
+ if (created && doChown)
+ chownr.sync(created, uid, gid)
+ if (needChmod)
+ fs.chmodSync(dir, mode)
+ }
+
+ if (cache && cGet(cache, dir) === true)
+ return done()
+
+ if (dir === cwd) {
+ checkCwdSync(cwd)
+ return done()
+ }
+
+ if (preserve)
+ return done(mkdirp.sync(dir, mode))
+
+ const sub = normPath(path.relative(cwd, dir))
+ const parts = sub.split('/')
+ let created = null
+ for (let p = parts.shift(), part = cwd;
+ p && (part += '/' + p);
+ p = parts.shift()) {
+ part = normPath(path.resolve(part))
+ if (cGet(cache, part))
+ continue
+
+ try {
+ fs.mkdirSync(part, mode)
+ created = created || part
+ cSet(cache, part, true)
+ } catch (er) {
+ const st = fs.lstatSync(part)
+ if (st.isDirectory()) {
+ cSet(cache, part, true)
+ continue
+ } else if (unlink) {
+ fs.unlinkSync(part)
+ fs.mkdirSync(part, mode)
+ created = created || part
+ cSet(cache, part, true)
+ continue
+ } else if (st.isSymbolicLink())
+ return new SymlinkError(part, part + '/' + parts.join('/'))
+ }
+ }
+
+ return done(created)
+}
diff --git a/backend/node_modules/tar/lib/mode-fix.js b/backend/node_modules/tar/lib/mode-fix.js
new file mode 100644
index 0000000..6a045ff
--- /dev/null
+++ b/backend/node_modules/tar/lib/mode-fix.js
@@ -0,0 +1,23 @@
+'use strict'
+module.exports = (mode, isDir, portable) => {
+ mode &= 0o7777
+
+ // in portable mode, use the minimum reasonable umask
+ // if this system creates files with 0o664 by default
+ // (as some linux distros do), then we'll write the
+ // archive with 0o644 instead. Also, don't ever create
+ // a file that is not readable/writable by the owner.
+ if (portable)
+ mode = (mode | 0o600) & ~0o22
+
+ // if dirs are readable, then they should be listable
+ if (isDir) {
+ if (mode & 0o400)
+ mode |= 0o100
+ if (mode & 0o40)
+ mode |= 0o10
+ if (mode & 0o4)
+ mode |= 0o1
+ }
+ return mode
+}
diff --git a/backend/node_modules/tar/lib/normalize-unicode.js b/backend/node_modules/tar/lib/normalize-unicode.js
new file mode 100644
index 0000000..4aeb1d5
--- /dev/null
+++ b/backend/node_modules/tar/lib/normalize-unicode.js
@@ -0,0 +1,11 @@
+// warning: extremely hot code path.
+// This has been meticulously optimized for use
+// within npm install on large package trees.
+// Do not edit without careful benchmarking.
+const normalizeCache = Object.create(null)
+const {hasOwnProperty} = Object.prototype
+module.exports = s => {
+ if (!hasOwnProperty.call(normalizeCache, s))
+ normalizeCache[s] = s.normalize('NFKD')
+ return normalizeCache[s]
+}
diff --git a/backend/node_modules/tar/lib/normalize-windows-path.js b/backend/node_modules/tar/lib/normalize-windows-path.js
new file mode 100644
index 0000000..eb13ba0
--- /dev/null
+++ b/backend/node_modules/tar/lib/normalize-windows-path.js
@@ -0,0 +1,8 @@
+// on windows, either \ or / are valid directory separators.
+// on unix, \ is a valid character in filenames.
+// so, on windows, and only on windows, we replace all \ chars with /,
+// so that we can use / as our one and only directory separator char.
+
+const platform = process.env.TESTING_TAR_FAKE_PLATFORM || process.platform
+module.exports = platform !== 'win32' ? p => p
+ : p => p && p.replace(/\\/g, '/')
diff --git a/backend/node_modules/tar/lib/pack.js b/backend/node_modules/tar/lib/pack.js
new file mode 100644
index 0000000..9522c10
--- /dev/null
+++ b/backend/node_modules/tar/lib/pack.js
@@ -0,0 +1,397 @@
+'use strict'
+
+// A readable tar stream creator
+// Technically, this is a transform stream that you write paths into,
+// and tar format comes out of.
+// The `add()` method is like `write()` but returns this,
+// and end() return `this` as well, so you can
+// do `new Pack(opt).add('files').add('dir').end().pipe(output)
+// You could also do something like:
+// streamOfPaths().pipe(new Pack()).pipe(new fs.WriteStream('out.tar'))
+
+class PackJob {
+ constructor (path, absolute) {
+ this.path = path || './'
+ this.absolute = absolute
+ this.entry = null
+ this.stat = null
+ this.readdir = null
+ this.pending = false
+ this.ignore = false
+ this.piped = false
+ }
+}
+
+const MiniPass = require('minipass')
+const zlib = require('minizlib')
+const ReadEntry = require('./read-entry.js')
+const WriteEntry = require('./write-entry.js')
+const WriteEntrySync = WriteEntry.Sync
+const WriteEntryTar = WriteEntry.Tar
+const Yallist = require('yallist')
+const EOF = Buffer.alloc(1024)
+const ONSTAT = Symbol('onStat')
+const ENDED = Symbol('ended')
+const QUEUE = Symbol('queue')
+const CURRENT = Symbol('current')
+const PROCESS = Symbol('process')
+const PROCESSING = Symbol('processing')
+const PROCESSJOB = Symbol('processJob')
+const JOBS = Symbol('jobs')
+const JOBDONE = Symbol('jobDone')
+const ADDFSENTRY = Symbol('addFSEntry')
+const ADDTARENTRY = Symbol('addTarEntry')
+const STAT = Symbol('stat')
+const READDIR = Symbol('readdir')
+const ONREADDIR = Symbol('onreaddir')
+const PIPE = Symbol('pipe')
+const ENTRY = Symbol('entry')
+const ENTRYOPT = Symbol('entryOpt')
+const WRITEENTRYCLASS = Symbol('writeEntryClass')
+const WRITE = Symbol('write')
+const ONDRAIN = Symbol('ondrain')
+
+const fs = require('fs')
+const path = require('path')
+const warner = require('./warn-mixin.js')
+const normPath = require('./normalize-windows-path.js')
+
+const Pack = warner(class Pack extends MiniPass {
+ constructor (opt) {
+ super(opt)
+ opt = opt || Object.create(null)
+ this.opt = opt
+ this.file = opt.file || ''
+ this.cwd = opt.cwd || process.cwd()
+ this.maxReadSize = opt.maxReadSize
+ this.preservePaths = !!opt.preservePaths
+ this.strict = !!opt.strict
+ this.noPax = !!opt.noPax
+ this.prefix = normPath(opt.prefix || '')
+ this.linkCache = opt.linkCache || new Map()
+ this.statCache = opt.statCache || new Map()
+ this.readdirCache = opt.readdirCache || new Map()
+
+ this[WRITEENTRYCLASS] = WriteEntry
+ if (typeof opt.onwarn === 'function')
+ this.on('warn', opt.onwarn)
+
+ this.portable = !!opt.portable
+ this.zip = null
+ if (opt.gzip) {
+ if (typeof opt.gzip !== 'object')
+ opt.gzip = {}
+ if (this.portable)
+ opt.gzip.portable = true
+ this.zip = new zlib.Gzip(opt.gzip)
+ this.zip.on('data', chunk => super.write(chunk))
+ this.zip.on('end', _ => super.end())
+ this.zip.on('drain', _ => this[ONDRAIN]())
+ this.on('resume', _ => this.zip.resume())
+ } else
+ this.on('drain', this[ONDRAIN])
+
+ this.noDirRecurse = !!opt.noDirRecurse
+ this.follow = !!opt.follow
+ this.noMtime = !!opt.noMtime
+ this.mtime = opt.mtime || null
+
+ this.filter = typeof opt.filter === 'function' ? opt.filter : _ => true
+
+ this[QUEUE] = new Yallist()
+ this[JOBS] = 0
+ this.jobs = +opt.jobs || 4
+ this[PROCESSING] = false
+ this[ENDED] = false
+ }
+
+ [WRITE] (chunk) {
+ return super.write(chunk)
+ }
+
+ add (path) {
+ this.write(path)
+ return this
+ }
+
+ end (path) {
+ if (path)
+ this.write(path)
+ this[ENDED] = true
+ this[PROCESS]()
+ return this
+ }
+
+ write (path) {
+ if (this[ENDED])
+ throw new Error('write after end')
+
+ if (path instanceof ReadEntry)
+ this[ADDTARENTRY](path)
+ else
+ this[ADDFSENTRY](path)
+ return this.flowing
+ }
+
+ [ADDTARENTRY] (p) {
+ const absolute = normPath(path.resolve(this.cwd, p.path))
+ // in this case, we don't have to wait for the stat
+ if (!this.filter(p.path, p))
+ p.resume()
+ else {
+ const job = new PackJob(p.path, absolute, false)
+ job.entry = new WriteEntryTar(p, this[ENTRYOPT](job))
+ job.entry.on('end', _ => this[JOBDONE](job))
+ this[JOBS] += 1
+ this[QUEUE].push(job)
+ }
+
+ this[PROCESS]()
+ }
+
+ [ADDFSENTRY] (p) {
+ const absolute = normPath(path.resolve(this.cwd, p))
+ this[QUEUE].push(new PackJob(p, absolute))
+ this[PROCESS]()
+ }
+
+ [STAT] (job) {
+ job.pending = true
+ this[JOBS] += 1
+ const stat = this.follow ? 'stat' : 'lstat'
+ fs[stat](job.absolute, (er, stat) => {
+ job.pending = false
+ this[JOBS] -= 1
+ if (er)
+ this.emit('error', er)
+ else
+ this[ONSTAT](job, stat)
+ })
+ }
+
+ [ONSTAT] (job, stat) {
+ this.statCache.set(job.absolute, stat)
+ job.stat = stat
+
+ // now we have the stat, we can filter it.
+ if (!this.filter(job.path, stat))
+ job.ignore = true
+
+ this[PROCESS]()
+ }
+
+ [READDIR] (job) {
+ job.pending = true
+ this[JOBS] += 1
+ fs.readdir(job.absolute, (er, entries) => {
+ job.pending = false
+ this[JOBS] -= 1
+ if (er)
+ return this.emit('error', er)
+ this[ONREADDIR](job, entries)
+ })
+ }
+
+ [ONREADDIR] (job, entries) {
+ this.readdirCache.set(job.absolute, entries)
+ job.readdir = entries
+ this[PROCESS]()
+ }
+
+ [PROCESS] () {
+ if (this[PROCESSING])
+ return
+
+ this[PROCESSING] = true
+ for (let w = this[QUEUE].head;
+ w !== null && this[JOBS] < this.jobs;
+ w = w.next) {
+ this[PROCESSJOB](w.value)
+ if (w.value.ignore) {
+ const p = w.next
+ this[QUEUE].removeNode(w)
+ w.next = p
+ }
+ }
+
+ this[PROCESSING] = false
+
+ if (this[ENDED] && !this[QUEUE].length && this[JOBS] === 0) {
+ if (this.zip)
+ this.zip.end(EOF)
+ else {
+ super.write(EOF)
+ super.end()
+ }
+ }
+ }
+
+ get [CURRENT] () {
+ return this[QUEUE] && this[QUEUE].head && this[QUEUE].head.value
+ }
+
+ [JOBDONE] (job) {
+ this[QUEUE].shift()
+ this[JOBS] -= 1
+ this[PROCESS]()
+ }
+
+ [PROCESSJOB] (job) {
+ if (job.pending)
+ return
+
+ if (job.entry) {
+ if (job === this[CURRENT] && !job.piped)
+ this[PIPE](job)
+ return
+ }
+
+ if (!job.stat) {
+ if (this.statCache.has(job.absolute))
+ this[ONSTAT](job, this.statCache.get(job.absolute))
+ else
+ this[STAT](job)
+ }
+ if (!job.stat)
+ return
+
+ // filtered out!
+ if (job.ignore)
+ return
+
+ if (!this.noDirRecurse && job.stat.isDirectory() && !job.readdir) {
+ if (this.readdirCache.has(job.absolute))
+ this[ONREADDIR](job, this.readdirCache.get(job.absolute))
+ else
+ this[READDIR](job)
+ if (!job.readdir)
+ return
+ }
+
+ // we know it doesn't have an entry, because that got checked above
+ job.entry = this[ENTRY](job)
+ if (!job.entry) {
+ job.ignore = true
+ return
+ }
+
+ if (job === this[CURRENT] && !job.piped)
+ this[PIPE](job)
+ }
+
+ [ENTRYOPT] (job) {
+ return {
+ onwarn: (code, msg, data) => this.warn(code, msg, data),
+ noPax: this.noPax,
+ cwd: this.cwd,
+ absolute: job.absolute,
+ preservePaths: this.preservePaths,
+ maxReadSize: this.maxReadSize,
+ strict: this.strict,
+ portable: this.portable,
+ linkCache: this.linkCache,
+ statCache: this.statCache,
+ noMtime: this.noMtime,
+ mtime: this.mtime,
+ prefix: this.prefix,
+ }
+ }
+
+ [ENTRY] (job) {
+ this[JOBS] += 1
+ try {
+ return new this[WRITEENTRYCLASS](job.path, this[ENTRYOPT](job))
+ .on('end', () => this[JOBDONE](job))
+ .on('error', er => this.emit('error', er))
+ } catch (er) {
+ this.emit('error', er)
+ }
+ }
+
+ [ONDRAIN] () {
+ if (this[CURRENT] && this[CURRENT].entry)
+ this[CURRENT].entry.resume()
+ }
+
+ // like .pipe() but using super, because our write() is special
+ [PIPE] (job) {
+ job.piped = true
+
+ if (job.readdir) {
+ job.readdir.forEach(entry => {
+ const p = job.path
+ const base = p === './' ? '' : p.replace(/\/*$/, '/')
+ this[ADDFSENTRY](base + entry)
+ })
+ }
+
+ const source = job.entry
+ const zip = this.zip
+
+ if (zip) {
+ source.on('data', chunk => {
+ if (!zip.write(chunk))
+ source.pause()
+ })
+ } else {
+ source.on('data', chunk => {
+ if (!super.write(chunk))
+ source.pause()
+ })
+ }
+ }
+
+ pause () {
+ if (this.zip)
+ this.zip.pause()
+ return super.pause()
+ }
+})
+
+class PackSync extends Pack {
+ constructor (opt) {
+ super(opt)
+ this[WRITEENTRYCLASS] = WriteEntrySync
+ }
+
+ // pause/resume are no-ops in sync streams.
+ pause () {}
+ resume () {}
+
+ [STAT] (job) {
+ const stat = this.follow ? 'statSync' : 'lstatSync'
+ this[ONSTAT](job, fs[stat](job.absolute))
+ }
+
+ [READDIR] (job, stat) {
+ this[ONREADDIR](job, fs.readdirSync(job.absolute))
+ }
+
+ // gotta get it all in this tick
+ [PIPE] (job) {
+ const source = job.entry
+ const zip = this.zip
+
+ if (job.readdir) {
+ job.readdir.forEach(entry => {
+ const p = job.path
+ const base = p === './' ? '' : p.replace(/\/*$/, '/')
+ this[ADDFSENTRY](base + entry)
+ })
+ }
+
+ if (zip) {
+ source.on('data', chunk => {
+ zip.write(chunk)
+ })
+ } else {
+ source.on('data', chunk => {
+ super[WRITE](chunk)
+ })
+ }
+ }
+}
+
+Pack.Sync = PackSync
+
+module.exports = Pack
diff --git a/backend/node_modules/tar/lib/parse.js b/backend/node_modules/tar/lib/parse.js
new file mode 100644
index 0000000..b1b4e7e
--- /dev/null
+++ b/backend/node_modules/tar/lib/parse.js
@@ -0,0 +1,481 @@
+'use strict'
+
+// this[BUFFER] is the remainder of a chunk if we're waiting for
+// the full 512 bytes of a header to come in. We will Buffer.concat()
+// it to the next write(), which is a mem copy, but a small one.
+//
+// this[QUEUE] is a Yallist of entries that haven't been emitted
+// yet this can only get filled up if the user keeps write()ing after
+// a write() returns false, or does a write() with more than one entry
+//
+// We don't buffer chunks, we always parse them and either create an
+// entry, or push it into the active entry. The ReadEntry class knows
+// to throw data away if .ignore=true
+//
+// Shift entry off the buffer when it emits 'end', and emit 'entry' for
+// the next one in the list.
+//
+// At any time, we're pushing body chunks into the entry at WRITEENTRY,
+// and waiting for 'end' on the entry at READENTRY
+//
+// ignored entries get .resume() called on them straight away
+
+const warner = require('./warn-mixin.js')
+const Header = require('./header.js')
+const EE = require('events')
+const Yallist = require('yallist')
+const maxMetaEntrySize = 1024 * 1024
+const Entry = require('./read-entry.js')
+const Pax = require('./pax.js')
+const zlib = require('minizlib')
+
+const gzipHeader = Buffer.from([0x1f, 0x8b])
+const STATE = Symbol('state')
+const WRITEENTRY = Symbol('writeEntry')
+const READENTRY = Symbol('readEntry')
+const NEXTENTRY = Symbol('nextEntry')
+const PROCESSENTRY = Symbol('processEntry')
+const EX = Symbol('extendedHeader')
+const GEX = Symbol('globalExtendedHeader')
+const META = Symbol('meta')
+const EMITMETA = Symbol('emitMeta')
+const BUFFER = Symbol('buffer')
+const QUEUE = Symbol('queue')
+const ENDED = Symbol('ended')
+const EMITTEDEND = Symbol('emittedEnd')
+const EMIT = Symbol('emit')
+const UNZIP = Symbol('unzip')
+const CONSUMECHUNK = Symbol('consumeChunk')
+const CONSUMECHUNKSUB = Symbol('consumeChunkSub')
+const CONSUMEBODY = Symbol('consumeBody')
+const CONSUMEMETA = Symbol('consumeMeta')
+const CONSUMEHEADER = Symbol('consumeHeader')
+const CONSUMING = Symbol('consuming')
+const BUFFERCONCAT = Symbol('bufferConcat')
+const MAYBEEND = Symbol('maybeEnd')
+const WRITING = Symbol('writing')
+const ABORTED = Symbol('aborted')
+const DONE = Symbol('onDone')
+const SAW_VALID_ENTRY = Symbol('sawValidEntry')
+const SAW_NULL_BLOCK = Symbol('sawNullBlock')
+const SAW_EOF = Symbol('sawEOF')
+
+const noop = _ => true
+
+module.exports = warner(class Parser extends EE {
+ constructor (opt) {
+ opt = opt || {}
+ super(opt)
+
+ this.file = opt.file || ''
+
+ // set to boolean false when an entry starts. 1024 bytes of \0
+ // is technically a valid tarball, albeit a boring one.
+ this[SAW_VALID_ENTRY] = null
+
+ // these BADARCHIVE errors can't be detected early. listen on DONE.
+ this.on(DONE, _ => {
+ if (this[STATE] === 'begin' || this[SAW_VALID_ENTRY] === false) {
+ // either less than 1 block of data, or all entries were invalid.
+ // Either way, probably not even a tarball.
+ this.warn('TAR_BAD_ARCHIVE', 'Unrecognized archive format')
+ }
+ })
+
+ if (opt.ondone)
+ this.on(DONE, opt.ondone)
+ else {
+ this.on(DONE, _ => {
+ this.emit('prefinish')
+ this.emit('finish')
+ this.emit('end')
+ this.emit('close')
+ })
+ }
+
+ this.strict = !!opt.strict
+ this.maxMetaEntrySize = opt.maxMetaEntrySize || maxMetaEntrySize
+ this.filter = typeof opt.filter === 'function' ? opt.filter : noop
+
+ // have to set this so that streams are ok piping into it
+ this.writable = true
+ this.readable = false
+
+ this[QUEUE] = new Yallist()
+ this[BUFFER] = null
+ this[READENTRY] = null
+ this[WRITEENTRY] = null
+ this[STATE] = 'begin'
+ this[META] = ''
+ this[EX] = null
+ this[GEX] = null
+ this[ENDED] = false
+ this[UNZIP] = null
+ this[ABORTED] = false
+ this[SAW_NULL_BLOCK] = false
+ this[SAW_EOF] = false
+ if (typeof opt.onwarn === 'function')
+ this.on('warn', opt.onwarn)
+ if (typeof opt.onentry === 'function')
+ this.on('entry', opt.onentry)
+ }
+
+ [CONSUMEHEADER] (chunk, position) {
+ if (this[SAW_VALID_ENTRY] === null)
+ this[SAW_VALID_ENTRY] = false
+ let header
+ try {
+ header = new Header(chunk, position, this[EX], this[GEX])
+ } catch (er) {
+ return this.warn('TAR_ENTRY_INVALID', er)
+ }
+
+ if (header.nullBlock) {
+ if (this[SAW_NULL_BLOCK]) {
+ this[SAW_EOF] = true
+ // ending an archive with no entries. pointless, but legal.
+ if (this[STATE] === 'begin')
+ this[STATE] = 'header'
+ this[EMIT]('eof')
+ } else {
+ this[SAW_NULL_BLOCK] = true
+ this[EMIT]('nullBlock')
+ }
+ } else {
+ this[SAW_NULL_BLOCK] = false
+ if (!header.cksumValid)
+ this.warn('TAR_ENTRY_INVALID', 'checksum failure', {header})
+ else if (!header.path)
+ this.warn('TAR_ENTRY_INVALID', 'path is required', {header})
+ else {
+ const type = header.type
+ if (/^(Symbolic)?Link$/.test(type) && !header.linkpath)
+ this.warn('TAR_ENTRY_INVALID', 'linkpath required', {header})
+ else if (!/^(Symbolic)?Link$/.test(type) && header.linkpath)
+ this.warn('TAR_ENTRY_INVALID', 'linkpath forbidden', {header})
+ else {
+ const entry = this[WRITEENTRY] = new Entry(header, this[EX], this[GEX])
+
+ // we do this for meta & ignored entries as well, because they
+ // are still valid tar, or else we wouldn't know to ignore them
+ if (!this[SAW_VALID_ENTRY]) {
+ if (entry.remain) {
+ // this might be the one!
+ const onend = () => {
+ if (!entry.invalid)
+ this[SAW_VALID_ENTRY] = true
+ }
+ entry.on('end', onend)
+ } else
+ this[SAW_VALID_ENTRY] = true
+ }
+
+ if (entry.meta) {
+ if (entry.size > this.maxMetaEntrySize) {
+ entry.ignore = true
+ this[EMIT]('ignoredEntry', entry)
+ this[STATE] = 'ignore'
+ entry.resume()
+ } else if (entry.size > 0) {
+ this[META] = ''
+ entry.on('data', c => this[META] += c)
+ this[STATE] = 'meta'
+ }
+ } else {
+ this[EX] = null
+ entry.ignore = entry.ignore || !this.filter(entry.path, entry)
+
+ if (entry.ignore) {
+ // probably valid, just not something we care about
+ this[EMIT]('ignoredEntry', entry)
+ this[STATE] = entry.remain ? 'ignore' : 'header'
+ entry.resume()
+ } else {
+ if (entry.remain)
+ this[STATE] = 'body'
+ else {
+ this[STATE] = 'header'
+ entry.end()
+ }
+
+ if (!this[READENTRY]) {
+ this[QUEUE].push(entry)
+ this[NEXTENTRY]()
+ } else
+ this[QUEUE].push(entry)
+ }
+ }
+ }
+ }
+ }
+ }
+
+ [PROCESSENTRY] (entry) {
+ let go = true
+
+ if (!entry) {
+ this[READENTRY] = null
+ go = false
+ } else if (Array.isArray(entry))
+ this.emit.apply(this, entry)
+ else {
+ this[READENTRY] = entry
+ this.emit('entry', entry)
+ if (!entry.emittedEnd) {
+ entry.on('end', _ => this[NEXTENTRY]())
+ go = false
+ }
+ }
+
+ return go
+ }
+
+ [NEXTENTRY] () {
+ do {} while (this[PROCESSENTRY](this[QUEUE].shift()))
+
+ if (!this[QUEUE].length) {
+ // At this point, there's nothing in the queue, but we may have an
+ // entry which is being consumed (readEntry).
+ // If we don't, then we definitely can handle more data.
+ // If we do, and either it's flowing, or it has never had any data
+ // written to it, then it needs more.
+ // The only other possibility is that it has returned false from a
+ // write() call, so we wait for the next drain to continue.
+ const re = this[READENTRY]
+ const drainNow = !re || re.flowing || re.size === re.remain
+ if (drainNow) {
+ if (!this[WRITING])
+ this.emit('drain')
+ } else
+ re.once('drain', _ => this.emit('drain'))
+ }
+ }
+
+ [CONSUMEBODY] (chunk, position) {
+ // write up to but no more than writeEntry.blockRemain
+ const entry = this[WRITEENTRY]
+ const br = entry.blockRemain
+ const c = (br >= chunk.length && position === 0) ? chunk
+ : chunk.slice(position, position + br)
+
+ entry.write(c)
+
+ if (!entry.blockRemain) {
+ this[STATE] = 'header'
+ this[WRITEENTRY] = null
+ entry.end()
+ }
+
+ return c.length
+ }
+
+ [CONSUMEMETA] (chunk, position) {
+ const entry = this[WRITEENTRY]
+ const ret = this[CONSUMEBODY](chunk, position)
+
+ // if we finished, then the entry is reset
+ if (!this[WRITEENTRY])
+ this[EMITMETA](entry)
+
+ return ret
+ }
+
+ [EMIT] (ev, data, extra) {
+ if (!this[QUEUE].length && !this[READENTRY])
+ this.emit(ev, data, extra)
+ else
+ this[QUEUE].push([ev, data, extra])
+ }
+
+ [EMITMETA] (entry) {
+ this[EMIT]('meta', this[META])
+ switch (entry.type) {
+ case 'ExtendedHeader':
+ case 'OldExtendedHeader':
+ this[EX] = Pax.parse(this[META], this[EX], false)
+ break
+
+ case 'GlobalExtendedHeader':
+ this[GEX] = Pax.parse(this[META], this[GEX], true)
+ break
+
+ case 'NextFileHasLongPath':
+ case 'OldGnuLongPath':
+ this[EX] = this[EX] || Object.create(null)
+ this[EX].path = this[META].replace(/\0.*/, '')
+ break
+
+ case 'NextFileHasLongLinkpath':
+ this[EX] = this[EX] || Object.create(null)
+ this[EX].linkpath = this[META].replace(/\0.*/, '')
+ break
+
+ /* istanbul ignore next */
+ default: throw new Error('unknown meta: ' + entry.type)
+ }
+ }
+
+ abort (error) {
+ this[ABORTED] = true
+ this.emit('abort', error)
+ // always throws, even in non-strict mode
+ this.warn('TAR_ABORT', error, { recoverable: false })
+ }
+
+ write (chunk) {
+ if (this[ABORTED])
+ return
+
+ // first write, might be gzipped
+ if (this[UNZIP] === null && chunk) {
+ if (this[BUFFER]) {
+ chunk = Buffer.concat([this[BUFFER], chunk])
+ this[BUFFER] = null
+ }
+ if (chunk.length < gzipHeader.length) {
+ this[BUFFER] = chunk
+ return true
+ }
+ for (let i = 0; this[UNZIP] === null && i < gzipHeader.length; i++) {
+ if (chunk[i] !== gzipHeader[i])
+ this[UNZIP] = false
+ }
+ if (this[UNZIP] === null) {
+ const ended = this[ENDED]
+ this[ENDED] = false
+ this[UNZIP] = new zlib.Unzip()
+ this[UNZIP].on('data', chunk => this[CONSUMECHUNK](chunk))
+ this[UNZIP].on('error', er => this.abort(er))
+ this[UNZIP].on('end', _ => {
+ this[ENDED] = true
+ this[CONSUMECHUNK]()
+ })
+ this[WRITING] = true
+ const ret = this[UNZIP][ended ? 'end' : 'write'](chunk)
+ this[WRITING] = false
+ return ret
+ }
+ }
+
+ this[WRITING] = true
+ if (this[UNZIP])
+ this[UNZIP].write(chunk)
+ else
+ this[CONSUMECHUNK](chunk)
+ this[WRITING] = false
+
+ // return false if there's a queue, or if the current entry isn't flowing
+ const ret =
+ this[QUEUE].length ? false :
+ this[READENTRY] ? this[READENTRY].flowing :
+ true
+
+ // if we have no queue, then that means a clogged READENTRY
+ if (!ret && !this[QUEUE].length)
+ this[READENTRY].once('drain', _ => this.emit('drain'))
+
+ return ret
+ }
+
+ [BUFFERCONCAT] (c) {
+ if (c && !this[ABORTED])
+ this[BUFFER] = this[BUFFER] ? Buffer.concat([this[BUFFER], c]) : c
+ }
+
+ [MAYBEEND] () {
+ if (this[ENDED] &&
+ !this[EMITTEDEND] &&
+ !this[ABORTED] &&
+ !this[CONSUMING]) {
+ this[EMITTEDEND] = true
+ const entry = this[WRITEENTRY]
+ if (entry && entry.blockRemain) {
+ // truncated, likely a damaged file
+ const have = this[BUFFER] ? this[BUFFER].length : 0
+ this.warn('TAR_BAD_ARCHIVE', `Truncated input (needed ${
+ entry.blockRemain} more bytes, only ${have} available)`, {entry})
+ if (this[BUFFER])
+ entry.write(this[BUFFER])
+ entry.end()
+ }
+ this[EMIT](DONE)
+ }
+ }
+
+ [CONSUMECHUNK] (chunk) {
+ if (this[CONSUMING])
+ this[BUFFERCONCAT](chunk)
+ else if (!chunk && !this[BUFFER])
+ this[MAYBEEND]()
+ else {
+ this[CONSUMING] = true
+ if (this[BUFFER]) {
+ this[BUFFERCONCAT](chunk)
+ const c = this[BUFFER]
+ this[BUFFER] = null
+ this[CONSUMECHUNKSUB](c)
+ } else
+ this[CONSUMECHUNKSUB](chunk)
+
+ while (this[BUFFER] &&
+ this[BUFFER].length >= 512 &&
+ !this[ABORTED] &&
+ !this[SAW_EOF]) {
+ const c = this[BUFFER]
+ this[BUFFER] = null
+ this[CONSUMECHUNKSUB](c)
+ }
+ this[CONSUMING] = false
+ }
+
+ if (!this[BUFFER] || this[ENDED])
+ this[MAYBEEND]()
+ }
+
+ [CONSUMECHUNKSUB] (chunk) {
+ // we know that we are in CONSUMING mode, so anything written goes into
+ // the buffer. Advance the position and put any remainder in the buffer.
+ let position = 0
+ const length = chunk.length
+ while (position + 512 <= length && !this[ABORTED] && !this[SAW_EOF]) {
+ switch (this[STATE]) {
+ case 'begin':
+ case 'header':
+ this[CONSUMEHEADER](chunk, position)
+ position += 512
+ break
+
+ case 'ignore':
+ case 'body':
+ position += this[CONSUMEBODY](chunk, position)
+ break
+
+ case 'meta':
+ position += this[CONSUMEMETA](chunk, position)
+ break
+
+ /* istanbul ignore next */
+ default:
+ throw new Error('invalid state: ' + this[STATE])
+ }
+ }
+
+ if (position < length) {
+ if (this[BUFFER])
+ this[BUFFER] = Buffer.concat([chunk.slice(position), this[BUFFER]])
+ else
+ this[BUFFER] = chunk.slice(position)
+ }
+ }
+
+ end (chunk) {
+ if (!this[ABORTED]) {
+ if (this[UNZIP])
+ this[UNZIP].end(chunk)
+ else {
+ this[ENDED] = true
+ this.write(chunk)
+ }
+ }
+ }
+})
diff --git a/backend/node_modules/tar/lib/path-reservations.js b/backend/node_modules/tar/lib/path-reservations.js
new file mode 100644
index 0000000..8183c45
--- /dev/null
+++ b/backend/node_modules/tar/lib/path-reservations.js
@@ -0,0 +1,148 @@
+// A path exclusive reservation system
+// reserve([list, of, paths], fn)
+// When the fn is first in line for all its paths, it
+// is called with a cb that clears the reservation.
+//
+// Used by async unpack to avoid clobbering paths in use,
+// while still allowing maximal safe parallelization.
+
+const assert = require('assert')
+const normalize = require('./normalize-unicode.js')
+const stripSlashes = require('./strip-trailing-slashes.js')
+const { join } = require('path')
+
+const platform = process.env.TESTING_TAR_FAKE_PLATFORM || process.platform
+const isWindows = platform === 'win32'
+
+module.exports = () => {
+ // path => [function or Set]
+ // A Set object means a directory reservation
+ // A fn is a direct reservation on that path
+ const queues = new Map()
+
+ // fn => {paths:[path,...], dirs:[path, ...]}
+ const reservations = new Map()
+
+ // return a set of parent dirs for a given path
+ // '/a/b/c/d' -> ['/', '/a', '/a/b', '/a/b/c', '/a/b/c/d']
+ const getDirs = path => {
+ const dirs = path.split('/').slice(0, -1).reduce((set, path) => {
+ if (set.length)
+ path = join(set[set.length - 1], path)
+ set.push(path || '/')
+ return set
+ }, [])
+ return dirs
+ }
+
+ // functions currently running
+ const running = new Set()
+
+ // return the queues for each path the function cares about
+ // fn => {paths, dirs}
+ const getQueues = fn => {
+ const res = reservations.get(fn)
+ /* istanbul ignore if - unpossible */
+ if (!res)
+ throw new Error('function does not have any path reservations')
+ return {
+ paths: res.paths.map(path => queues.get(path)),
+ dirs: [...res.dirs].map(path => queues.get(path)),
+ }
+ }
+
+ // check if fn is first in line for all its paths, and is
+ // included in the first set for all its dir queues
+ const check = fn => {
+ const {paths, dirs} = getQueues(fn)
+ return paths.every(q => q[0] === fn) &&
+ dirs.every(q => q[0] instanceof Set && q[0].has(fn))
+ }
+
+ // run the function if it's first in line and not already running
+ const run = fn => {
+ if (running.has(fn) || !check(fn))
+ return false
+ running.add(fn)
+ fn(() => clear(fn))
+ return true
+ }
+
+ const clear = fn => {
+ if (!running.has(fn))
+ return false
+
+ const { paths, dirs } = reservations.get(fn)
+ const next = new Set()
+
+ paths.forEach(path => {
+ const q = queues.get(path)
+ assert.equal(q[0], fn)
+ if (q.length === 1)
+ queues.delete(path)
+ else {
+ q.shift()
+ if (typeof q[0] === 'function')
+ next.add(q[0])
+ else
+ q[0].forEach(fn => next.add(fn))
+ }
+ })
+
+ dirs.forEach(dir => {
+ const q = queues.get(dir)
+ assert(q[0] instanceof Set)
+ if (q[0].size === 1 && q.length === 1)
+ queues.delete(dir)
+ else if (q[0].size === 1) {
+ q.shift()
+
+ // must be a function or else the Set would've been reused
+ next.add(q[0])
+ } else
+ q[0].delete(fn)
+ })
+ running.delete(fn)
+
+ next.forEach(fn => run(fn))
+ return true
+ }
+
+ const reserve = (paths, fn) => {
+ // collide on matches across case and unicode normalization
+ // On windows, thanks to the magic of 8.3 shortnames, it is fundamentally
+ // impossible to determine whether two paths refer to the same thing on
+ // disk, without asking the kernel for a shortname.
+ // So, we just pretend that every path matches every other path here,
+ // effectively removing all parallelization on windows.
+ paths = isWindows ? ['win32 parallelization disabled'] : paths.map(p => {
+ // don't need normPath, because we skip this entirely for windows
+ return normalize(stripSlashes(join(p))).toLowerCase()
+ })
+
+ const dirs = new Set(
+ paths.map(path => getDirs(path)).reduce((a, b) => a.concat(b))
+ )
+ reservations.set(fn, {dirs, paths})
+ paths.forEach(path => {
+ const q = queues.get(path)
+ if (!q)
+ queues.set(path, [fn])
+ else
+ q.push(fn)
+ })
+ dirs.forEach(dir => {
+ const q = queues.get(dir)
+ if (!q)
+ queues.set(dir, [new Set([fn])])
+ else if (q[q.length - 1] instanceof Set)
+ q[q.length - 1].add(fn)
+ else
+ q.push(new Set([fn]))
+ })
+
+ return run(fn)
+ }
+
+ return { check, reserve }
+}
diff --git a/backend/node_modules/tar/lib/pax.js b/backend/node_modules/tar/lib/pax.js
new file mode 100644
index 0000000..7768c7b
--- /dev/null
+++ b/backend/node_modules/tar/lib/pax.js
@@ -0,0 +1,143 @@
+'use strict'
+const Header = require('./header.js')
+const path = require('path')
+
+class Pax {
+ constructor (obj, global) {
+ this.atime = obj.atime || null
+ this.charset = obj.charset || null
+ this.comment = obj.comment || null
+ this.ctime = obj.ctime || null
+ this.gid = obj.gid || null
+ this.gname = obj.gname || null
+ this.linkpath = obj.linkpath || null
+ this.mtime = obj.mtime || null
+ this.path = obj.path || null
+ this.size = obj.size || null
+ this.uid = obj.uid || null
+ this.uname = obj.uname || null
+ this.dev = obj.dev || null
+ this.ino = obj.ino || null
+ this.nlink = obj.nlink || null
+ this.global = global || false
+ }
+
+ encode () {
+ const body = this.encodeBody()
+ if (body === '')
+ return null
+
+ const bodyLen = Buffer.byteLength(body)
+ // round up to 512 bytes
+ // add 512 for header
+ const bufLen = 512 * Math.ceil(1 + bodyLen / 512)
+ const buf = Buffer.allocUnsafe(bufLen)
+
+ // 0-fill the header section, it might not hit every field
+ for (let i = 0; i < 512; i++)
+ buf[i] = 0
+
+ new Header({
+ // XXX split the path
+ // then the path should be PaxHeader + basename, but less than 99,
+ // prepend with the dirname
+ path: ('PaxHeader/' + path.basename(this.path)).slice(0, 99),
+ mode: this.mode || 0o644,
+ uid: this.uid || null,
+ gid: this.gid || null,
+ size: bodyLen,
+ mtime: this.mtime || null,
+ type: this.global ? 'GlobalExtendedHeader' : 'ExtendedHeader',
+ linkpath: '',
+ uname: this.uname || '',
+ gname: this.gname || '',
+ devmaj: 0,
+ devmin: 0,
+ atime: this.atime || null,
+ ctime: this.ctime || null,
+ }).encode(buf)
+
+ buf.write(body, 512, bodyLen, 'utf8')
+
+ // null pad after the body
+ for (let i = bodyLen + 512; i < buf.length; i++)
+ buf[i] = 0
+
+ return buf
+ }
+
+ encodeBody () {
+ return (
+ this.encodeField('path') +
+ this.encodeField('ctime') +
+ this.encodeField('atime') +
+ this.encodeField('dev') +
+ this.encodeField('ino') +
+ this.encodeField('nlink') +
+ this.encodeField('charset') +
+ this.encodeField('comment') +
+ this.encodeField('gid') +
+ this.encodeField('gname') +
+ this.encodeField('linkpath') +
+ this.encodeField('mtime') +
+ this.encodeField('size') +
+ this.encodeField('uid') +
+ this.encodeField('uname')
+ )
+ }
+
+ encodeField (field) {
+ if (this[field] === null || this[field] === undefined)
+ return ''
+ const v = this[field] instanceof Date ? this[field].getTime() / 1000
+ : this[field]
+ const s = ' ' +
+ (field === 'dev' || field === 'ino' || field === 'nlink'
+ ? 'SCHILY.' : '') +
+ field + '=' + v + '\n'
+ const byteLen = Buffer.byteLength(s)
+ // the digits includes the length of the digits in ascii base-10
+ // so if it's 9 characters, then adding 1 for the 9 makes it 10
+ // which makes it 11 chars.
+ let digits = Math.floor(Math.log(byteLen) / Math.log(10)) + 1
+ if (byteLen + digits >= Math.pow(10, digits))
+ digits += 1
+ const len = digits + byteLen
+ return len + s
+ }
+}
+
+Pax.parse = (string, ex, g) => new Pax(merge(parseKV(string), ex), g)
+
+const merge = (a, b) =>
+ b ? Object.keys(a).reduce((s, k) => (s[k] = a[k], s), b) : a
+
+const parseKV = string =>
+ string
+ .replace(/\n$/, '')
+ .split('\n')
+ .reduce(parseKVLine, Object.create(null))
+
+const parseKVLine = (set, line) => {
+ const n = parseInt(line, 10)
+
+ // XXX Values with \n in them will fail this.
+ // Refactor to not be a naive line-by-line parse.
+ if (n !== Buffer.byteLength(line) + 1)
+ return set
+
+ line = line.substr((n + ' ').length)
+ const kv = line.split('=')
+ const k = kv.shift().replace(/^SCHILY\.(dev|ino|nlink)/, '$1')
+ if (!k)
+ return set
+
+ const v = kv.join('=')
+ set[k] = /^([A-Z]+\.)?([mac]|birth|creation)time$/.test(k)
+ ? new Date(v * 1000)
+ : /^[0-9]+$/.test(v) ? +v
+ : v
+ return set
+}
+
+module.exports = Pax
diff --git a/backend/node_modules/tar/lib/read-entry.js b/backend/node_modules/tar/lib/read-entry.js
new file mode 100644
index 0000000..183a605
--- /dev/null
+++ b/backend/node_modules/tar/lib/read-entry.js
@@ -0,0 +1,100 @@
+'use strict'
+const MiniPass = require('minipass')
+const normPath = require('./normalize-windows-path.js')
+
+const SLURP = Symbol('slurp')
+module.exports = class ReadEntry extends MiniPass {
+ constructor (header, ex, gex) {
+ super()
+ // read entries always start life paused. this is to avoid the
+ // situation where Minipass's auto-ending empty streams results
+ // in an entry ending before we're ready for it.
+ this.pause()
+ this.extended = ex
+ this.globalExtended = gex
+ this.header = header
+ this.startBlockSize = 512 * Math.ceil(header.size / 512)
+ this.blockRemain = this.startBlockSize
+ this.remain = header.size
+ this.type = header.type
+ this.meta = false
+ this.ignore = false
+ switch (this.type) {
+ case 'File':
+ case 'OldFile':
+ case 'Link':
+ case 'SymbolicLink':
+ case 'CharacterDevice':
+ case 'BlockDevice':
+ case 'Directory':
+ case 'FIFO':
+ case 'ContiguousFile':
+ case 'GNUDumpDir':
+ break
+
+ case 'NextFileHasLongLinkpath':
+ case 'NextFileHasLongPath':
+ case 'OldGnuLongPath':
+ case 'GlobalExtendedHeader':
+ case 'ExtendedHeader':
+ case 'OldExtendedHeader':
+ this.meta = true
+ break
+
+ // NOTE: gnutar and bsdtar treat unrecognized types as 'File'
+ // it may be worth doing the same, but with a warning.
+ default:
+ this.ignore = true
+ }
+
+ this.path = normPath(header.path)
+ this.mode = header.mode
+ if (this.mode)
+ this.mode = this.mode & 0o7777
+ this.uid = header.uid
+ this.gid = header.gid
+ this.uname = header.uname
+ this.gname = header.gname
+ this.size = header.size
+ this.mtime = header.mtime
+ this.atime = header.atime
+ this.ctime = header.ctime
+ this.linkpath = normPath(header.linkpath)
+ this.uname = header.uname
+ this.gname = header.gname
+
+ if (ex)
+ this[SLURP](ex)
+ if (gex)
+ this[SLURP](gex, true)
+ }
+
+ write (data) {
+ const writeLen = data.length
+ if (writeLen > this.blockRemain)
+ throw new Error('writing more to entry than is appropriate')
+
+ const r = this.remain
+ const br = this.blockRemain
+ this.remain = Math.max(0, r - writeLen)
+ this.blockRemain = Math.max(0, br - writeLen)
+ if (this.ignore)
+ return true
+
+ if (r >= writeLen)
+ return super.write(data)
+
+ // r < writeLen
+ return super.write(data.slice(0, r))
+ }
+
+ [SLURP] (ex, global) {
+ for (const k in ex) {
+ // we slurp in everything except for the path attribute in
+ // a global extended header, because that's weird.
+ if (ex[k] !== null && ex[k] !== undefined &&
+ !(global && k === 'path'))
+ this[k] = k === 'path' || k === 'linkpath' ? normPath(ex[k]) : ex[k]
+ }
+ }
+}
diff --git a/backend/node_modules/tar/lib/replace.js b/backend/node_modules/tar/lib/replace.js
new file mode 100644
index 0000000..1374f3f
--- /dev/null
+++ b/backend/node_modules/tar/lib/replace.js
@@ -0,0 +1,223 @@
+'use strict'
+
+// tar -r
+const hlo = require('./high-level-opt.js')
+const Pack = require('./pack.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const t = require('./list.js')
+const path = require('path')
+
+// starting at the head of the file, read a Header
+// If the checksum is invalid, that's our position to start writing
+// If it is, jump forward by the specified size (round up to 512)
+// and try again.
+// Write the new Pack stream starting there.
+
+const Header = require('./header.js')
+
+module.exports = (opt_, files, cb) => {
+ const opt = hlo(opt_)
+
+ if (!opt.file)
+ throw new TypeError('file is required')
+
+ if (opt.gzip)
+ throw new TypeError('cannot append to compressed archives')
+
+ if (!files || !Array.isArray(files) || !files.length)
+ throw new TypeError('no files or directories specified')
+
+ files = Array.from(files)
+
+ return opt.sync ? replaceSync(opt, files)
+ : replace(opt, files, cb)
+}
+
+const replaceSync = (opt, files) => {
+ const p = new Pack.Sync(opt)
+
+ let threw = true
+ let fd
+ let position
+
+ try {
+ try {
+ fd = fs.openSync(opt.file, 'r+')
+ } catch (er) {
+ if (er.code === 'ENOENT')
+ fd = fs.openSync(opt.file, 'w+')
+ else
+ throw er
+ }
+
+ const st = fs.fstatSync(fd)
+ const headBuf = Buffer.alloc(512)
+
+ POSITION: for (position = 0; position < st.size; position += 512) {
+ for (let bufPos = 0, bytes = 0; bufPos < 512; bufPos += bytes) {
+ bytes = fs.readSync(
+ fd, headBuf, bufPos, headBuf.length - bufPos, position + bufPos
+ )
+
+ if (position === 0 && headBuf[0] === 0x1f && headBuf[1] === 0x8b)
+ throw new Error('cannot append to compressed archives')
+
+ if (!bytes)
+ break POSITION
+ }
+
+ const h = new Header(headBuf)
+ if (!h.cksumValid)
+ break
+ const entryBlockSize = 512 * Math.ceil(h.size / 512)
+ if (position + entryBlockSize + 512 > st.size)
+ break
+ // the 512 for the header we just parsed will be added as well
+ // also jump ahead all the blocks for the body
+ position += entryBlockSize
+ if (opt.mtimeCache)
+ opt.mtimeCache.set(h.path, h.mtime)
+ }
+ threw = false
+
+ streamSync(opt, p, position, fd, files)
+ } finally {
+ if (threw) {
+ try {
+ fs.closeSync(fd)
+ } catch (er) {}
+ }
+ }
+}
+
+const streamSync = (opt, p, position, fd, files) => {
+ const stream = new fsm.WriteStreamSync(opt.file, {
+ fd: fd,
+ start: position,
+ })
+ p.pipe(stream)
+ addFilesSync(p, files)
+}
+
+const replace = (opt, files, cb) => {
+ files = Array.from(files)
+ const p = new Pack(opt)
+
+ const getPos = (fd, size, cb_) => {
+ const cb = (er, pos) => {
+ if (er)
+ fs.close(fd, _ => cb_(er))
+ else
+ cb_(null, pos)
+ }
+
+ let position = 0
+ if (size === 0)
+ return cb(null, 0)
+
+ let bufPos = 0
+ const headBuf = Buffer.alloc(512)
+ const onread = (er, bytes) => {
+ if (er)
+ return cb(er)
+ bufPos += bytes
+ if (bufPos < 512 && bytes) {
+ return fs.read(
+ fd, headBuf, bufPos, headBuf.length - bufPos,
+ position + bufPos, onread
+ )
+ }
+
+ if (position === 0 && headBuf[0] === 0x1f && headBuf[1] === 0x8b)
+ return cb(new Error('cannot append to compressed archives'))
+
+ // truncated header
+ if (bufPos < 512)
+ return cb(null, position)
+
+ const h = new Header(headBuf)
+ if (!h.cksumValid)
+ return cb(null, position)
+
+ const entryBlockSize = 512 * Math.ceil(h.size / 512)
+ if (position + entryBlockSize + 512 > size)
+ return cb(null, position)
+
+ position += entryBlockSize + 512
+ if (position >= size)
+ return cb(null, position)
+
+ if (opt.mtimeCache)
+ opt.mtimeCache.set(h.path, h.mtime)
+ bufPos = 0
+ fs.read(fd, headBuf, 0, 512, position, onread)
+ }
+ fs.read(fd, headBuf, 0, 512, position, onread)
+ }
+
+ const promise = new Promise((resolve, reject) => {
+ p.on('error', reject)
+ let flag = 'r+'
+ const onopen = (er, fd) => {
+ if (er && er.code === 'ENOENT' && flag === 'r+') {
+ flag = 'w+'
+ return fs.open(opt.file, flag, onopen)
+ }
+
+ if (er)
+ return reject(er)
+
+ fs.fstat(fd, (er, st) => {
+ if (er)
+ return fs.close(fd, () => reject(er))
+
+ getPos(fd, st.size, (er, position) => {
+ if (er)
+ return reject(er)
+ const stream = new fsm.WriteStream(opt.file, {
+ fd: fd,
+ start: position,
+ })
+ p.pipe(stream)
+ stream.on('error', reject)
+ stream.on('close', resolve)
+ addFilesAsync(p, files)
+ })
+ })
+ }
+ fs.open(opt.file, flag, onopen)
+ })
+
+ return cb ? promise.then(cb, cb) : promise
+}
+
+const addFilesSync = (p, files) => {
+ files.forEach(file => {
+ if (file.charAt(0) === '@') {
+ t({
+ file: path.resolve(p.cwd, file.substr(1)),
+ sync: true,
+ noResume: true,
+ onentry: entry => p.add(entry),
+ })
+ } else
+ p.add(file)
+ })
+ p.end()
+}
+
+const addFilesAsync = (p, files) => {
+ while (files.length) {
+ const file = files.shift()
+ if (file.charAt(0) === '@') {
+ return t({
+ file: path.resolve(p.cwd, file.substr(1)),
+ noResume: true,
+ onentry: entry => p.add(entry),
+ }).then(_ => addFilesAsync(p, files))
+ } else
+ p.add(file)
+ }
+ p.end()
+}
diff --git a/backend/node_modules/tar/lib/strip-absolute-path.js b/backend/node_modules/tar/lib/strip-absolute-path.js
new file mode 100644
index 0000000..1aa2d2a
--- /dev/null
+++ b/backend/node_modules/tar/lib/strip-absolute-path.js
@@ -0,0 +1,24 @@
+// unix absolute paths are also absolute on win32, so we use this for both
+const { isAbsolute, parse } = require('path').win32
+
+// returns [root, stripped]
+// Note that windows will think that //x/y/z/a has a "root" of //x/y, and in
+// those cases, we want to sanitize it to x/y/z/a, not z/a, so we strip /
+// explicitly if it's the first character.
+// drive-specific relative paths on Windows get their root stripped off even
+// though they are not absolute, so `c:../foo` becomes ['c:', '../foo']
+module.exports = path => {
+ let r = ''
+
+ let parsed = parse(path)
+ while (isAbsolute(path) || parsed.root) {
+ // windows will think that //x/y/z has a "root" of //x/y/
+ // but strip the //?/C:/ off of //?/C:/path
+ const root = path.charAt(0) === '/' && path.slice(0, 4) !== '//?/' ? '/'
+ : parsed.root
+ path = path.substr(root.length)
+ r += root
+ parsed = parse(path)
+ }
+ return [r, path]
+}
diff --git a/backend/node_modules/tar/lib/strip-trailing-slashes.js b/backend/node_modules/tar/lib/strip-trailing-slashes.js
new file mode 100644
index 0000000..3e3ecec
--- /dev/null
+++ b/backend/node_modules/tar/lib/strip-trailing-slashes.js
@@ -0,0 +1,13 @@
+// warning: extremely hot code path.
+// This has been meticulously optimized for use
+// within npm install on large package trees.
+// Do not edit without careful benchmarking.
+module.exports = str => {
+ let i = str.length - 1
+ let slashesStart = -1
+ while (i > -1 && str.charAt(i) === '/') {
+ slashesStart = i
+ i--
+ }
+ return slashesStart === -1 ? str : str.slice(0, slashesStart)
+}
diff --git a/backend/node_modules/tar/lib/types.js b/backend/node_modules/tar/lib/types.js
new file mode 100644
index 0000000..7bfc254
--- /dev/null
+++ b/backend/node_modules/tar/lib/types.js
@@ -0,0 +1,44 @@
+'use strict'
+// map types from key to human-friendly name
+exports.name = new Map([
+ ['0', 'File'],
+ // same as File
+ ['', 'OldFile'],
+ ['1', 'Link'],
+ ['2', 'SymbolicLink'],
+ // Devices and FIFOs aren't fully supported
+ // they are parsed, but skipped when unpacking
+ ['3', 'CharacterDevice'],
+ ['4', 'BlockDevice'],
+ ['5', 'Directory'],
+ ['6', 'FIFO'],
+ // same as File
+ ['7', 'ContiguousFile'],
+ // pax headers
+ ['g', 'GlobalExtendedHeader'],
+ ['x', 'ExtendedHeader'],
+ // vendor-specific stuff
+ // skip
+ ['A', 'SolarisACL'],
+ // like 5, but with data, which should be skipped
+ ['D', 'GNUDumpDir'],
+ // metadata only, skip
+ ['I', 'Inode'],
+ // data = link path of next file
+ ['K', 'NextFileHasLongLinkpath'],
+ // data = path of next file
+ ['L', 'NextFileHasLongPath'],
+ // skip
+ ['M', 'ContinuationFile'],
+ // like L
+ ['N', 'OldGnuLongPath'],
+ // skip
+ ['S', 'SparseFile'],
+ // skip
+ ['V', 'TapeVolumeHeader'],
+ // like x
+ ['X', 'OldExtendedHeader'],
+])
+
+// map the other direction
+exports.code = new Map(Array.from(exports.name).map(kv => [kv[1], kv[0]]))
diff --git a/backend/node_modules/tar/lib/unpack.js b/backend/node_modules/tar/lib/unpack.js
new file mode 100644
index 0000000..7d39dc0
--- /dev/null
+++ b/backend/node_modules/tar/lib/unpack.js
@@ -0,0 +1,877 @@
+'use strict'
+
+// the PEND/UNPEND stuff tracks whether we're ready to emit end/close yet.
+// but the path reservations are required to avoid race conditions where
+// parallelized unpack ops may mess with one another, due to dependencies
+// (like a Link depending on its target) or destructive operations (like
+// clobbering an fs object to create one of a different type.)
+
+const assert = require('assert')
+const Parser = require('./parse.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+const mkdir = require('./mkdir.js')
+const wc = require('./winchars.js')
+const pathReservations = require('./path-reservations.js')
+const stripAbsolutePath = require('./strip-absolute-path.js')
+const normPath = require('./normalize-windows-path.js')
+const stripSlash = require('./strip-trailing-slashes.js')
+const normalize = require('./normalize-unicode.js')
+
+const ONENTRY = Symbol('onEntry')
+const CHECKFS = Symbol('checkFs')
+const CHECKFS2 = Symbol('checkFs2')
+const PRUNECACHE = Symbol('pruneCache')
+const ISREUSABLE = Symbol('isReusable')
+const MAKEFS = Symbol('makeFs')
+const FILE = Symbol('file')
+const DIRECTORY = Symbol('directory')
+const LINK = Symbol('link')
+const SYMLINK = Symbol('symlink')
+const HARDLINK = Symbol('hardlink')
+const UNSUPPORTED = Symbol('unsupported')
+const CHECKPATH = Symbol('checkPath')
+const MKDIR = Symbol('mkdir')
+const ONERROR = Symbol('onError')
+const PENDING = Symbol('pending')
+const PEND = Symbol('pend')
+const UNPEND = Symbol('unpend')
+const ENDED = Symbol('ended')
+const MAYBECLOSE = Symbol('maybeClose')
+const SKIP = Symbol('skip')
+const DOCHOWN = Symbol('doChown')
+const UID = Symbol('uid')
+const GID = Symbol('gid')
+const CHECKED_CWD = Symbol('checkedCwd')
+const crypto = require('crypto')
+const getFlag = require('./get-write-flag.js')
+const platform = process.env.TESTING_TAR_FAKE_PLATFORM || process.platform
+const isWindows = platform === 'win32'
+
+// Unlinks on Windows are not atomic.
+//
+// This means that if you have a file entry, followed by another
+// file entry with an identical name, and you cannot re-use the file
+// (because it's a hardlink, or because unlink:true is set, or it's
+// Windows, which does not have useful nlink values), then the unlink
+// will be committed to the disk AFTER the new file has been written
+// over the old one, deleting the new file.
+//
+// To work around this, on Windows systems, we rename the file and then
+// delete the renamed file. It's a sloppy kludge, but frankly, I do not
+// know of a better way to do this, given windows' non-atomic unlink
+// semantics.
+//
+// See: https://github.com/npm/node-tar/issues/183
+/* istanbul ignore next */
+const unlinkFile = (path, cb) => {
+ if (!isWindows)
+ return fs.unlink(path, cb)
+
+ const name = path + '.DELETE.' + crypto.randomBytes(16).toString('hex')
+ fs.rename(path, name, er => {
+ if (er)
+ return cb(er)
+ fs.unlink(name, cb)
+ })
+}
+
+/* istanbul ignore next */
+const unlinkFileSync = path => {
+ if (!isWindows)
+ return fs.unlinkSync(path)
+
+ const name = path + '.DELETE.' + crypto.randomBytes(16).toString('hex')
+ fs.renameSync(path, name)
+ fs.unlinkSync(name)
+}
+
+// this.gid, entry.gid, this.processUid
+const uint32 = (a, b, c) =>
+ a === a >>> 0 ? a
+ : b === b >>> 0 ? b
+ : c
+
+// clear the cache if it's a case-insensitive unicode-squashing match.
+// we can't know if the current file system is case-sensitive or supports
+// unicode fully, so we check for similarity on the maximally compatible
+// representation. Err on the side of pruning, since all it's doing is
+// preventing lstats, and it's not the end of the world if we get a false
+// positive.
+// Note that on windows, we always drop the entire cache whenever a
+// symbolic link is encountered, because 8.3 filenames are impossible
+// to reason about, and collisions are hazards rather than just failures.
+const cacheKeyNormalize = path => normalize(stripSlash(normPath(path)))
+ .toLowerCase()
+
+const pruneCache = (cache, abs) => {
+ abs = cacheKeyNormalize(abs)
+ for (const path of cache.keys()) {
+ const pnorm = cacheKeyNormalize(path)
+ if (pnorm === abs || pnorm.indexOf(abs + '/') === 0)
+ cache.delete(path)
+ }
+}
+
+const dropCache = cache => {
+ for (const key of cache.keys())
+ cache.delete(key)
+}
+
+class Unpack extends Parser {
+ constructor (opt) {
+ if (!opt)
+ opt = {}
+
+ opt.ondone = _ => {
+ this[ENDED] = true
+ this[MAYBECLOSE]()
+ }
+
+ super(opt)
+
+ this[CHECKED_CWD] = false
+
+ this.reservations = pathReservations()
+
+ this.transform = typeof opt.transform === 'function' ? opt.transform : null
+
+ this.writable = true
+ this.readable = false
+
+ this[PENDING] = 0
+ this[ENDED] = false
+
+ this.dirCache = opt.dirCache || new Map()
+
+ if (typeof opt.uid === 'number' || typeof opt.gid === 'number') {
+ // need both or neither
+ if (typeof opt.uid !== 'number' || typeof opt.gid !== 'number')
+ throw new TypeError('cannot set owner without number uid and gid')
+ if (opt.preserveOwner) {
+ throw new TypeError(
+ 'cannot preserve owner in archive and also set owner explicitly')
+ }
+ this.uid = opt.uid
+ this.gid = opt.gid
+ this.setOwner = true
+ } else {
+ this.uid = null
+ this.gid = null
+ this.setOwner = false
+ }
+
+ // default true for root
+ if (opt.preserveOwner === undefined && typeof opt.uid !== 'number')
+ this.preserveOwner = process.getuid && process.getuid() === 0
+ else
+ this.preserveOwner = !!opt.preserveOwner
+
+ this.processUid = (this.preserveOwner || this.setOwner) && process.getuid ?
+ process.getuid() : null
+ this.processGid = (this.preserveOwner || this.setOwner) && process.getgid ?
+ process.getgid() : null
+
+ // mostly just for testing, but useful in some cases.
+ // Forcibly trigger a chown on every entry, no matter what
+ this.forceChown = opt.forceChown === true
+
+ // turn ><?| in filenames into 0xf000-higher encoded forms
+ this.win32 = !!opt.win32 || isWindows
+
+ // do not unpack over files that are newer than what's in the archive
+ this.newer = !!opt.newer
+
+ // do not unpack over ANY files
+ this.keep = !!opt.keep
+
+ // do not set mtime/atime of extracted entries
+ this.noMtime = !!opt.noMtime
+
+ // allow .., absolute path entries, and unpacking through symlinks
+ // without this, warn and skip .., relativize absolutes, and error
+ // on symlinks in extraction path
+ this.preservePaths = !!opt.preservePaths
+
+ // unlink files and links before writing. This breaks existing hard
+ // links, and removes symlink directories rather than erroring
+ this.unlink = !!opt.unlink
+
+ this.cwd = normPath(path.resolve(opt.cwd || process.cwd()))
+ this.strip = +opt.strip || 0
+ // if we're not chmodding, then we don't need the process umask
+ this.processUmask = opt.noChmod ? 0 : process.umask()
+ this.umask = typeof opt.umask === 'number' ? opt.umask : this.processUmask
+
+ // default mode for dirs created as parents
+ this.dmode = opt.dmode || (0o0777 & (~this.umask))
+ this.fmode = opt.fmode || (0o0666 & (~this.umask))
+
+ this.on('entry', entry => this[ONENTRY](entry))
+ }
+
+ // a bad or damaged archive is a warning for Parser, but an error
+ // when extracting. Mark those errors as unrecoverable, because
+ // the Unpack contract cannot be met.
+ warn (code, msg, data = {}) {
+ if (code === 'TAR_BAD_ARCHIVE' || code === 'TAR_ABORT')
+ data.recoverable = false
+ return super.warn(code, msg, data)
+ }
+
+ [MAYBECLOSE] () {
+ if (this[ENDED] && this[PENDING] === 0) {
+ this.emit('prefinish')
+ this.emit('finish')
+ this.emit('end')
+ this.emit('close')
+ }
+ }
+
+ [CHECKPATH] (entry) {
+ if (this.strip) {
+ const parts = normPath(entry.path).split('/')
+ if (parts.length < this.strip)
+ return false
+ entry.path = parts.slice(this.strip).join('/')
+
+ if (entry.type === 'Link') {
+ const linkparts = normPath(entry.linkpath).split('/')
+ if (linkparts.length >= this.strip)
+ entry.linkpath = linkparts.slice(this.strip).join('/')
+ else
+ return false
+ }
+ }
+
+ if (!this.preservePaths) {
+ const p = normPath(entry.path)
+ const parts = p.split('/')
+ if (parts.includes('..') || isWindows && /^[a-z]:\.\.$/i.test(parts[0])) {
+ this.warn('TAR_ENTRY_ERROR', `path contains '..'`, {
+ entry,
+ path: p,
+ })
+ return false
+ }
+
+ // strip off the root
+ const [root, stripped] = stripAbsolutePath(p)
+ if (root) {
+ entry.path = stripped
+ this.warn('TAR_ENTRY_INFO', `stripping ${root} from absolute path`, {
+ entry,
+ path: p,
+ })
+ }
+ }
+
+ if (path.isAbsolute(entry.path))
+ entry.absolute = normPath(path.resolve(entry.path))
+ else
+ entry.absolute = normPath(path.resolve(this.cwd, entry.path))
+
+ // if we somehow ended up with a path that escapes the cwd, and we are
+ // not in preservePaths mode, then something is fishy! This should have
+ // been prevented above, so ignore this for coverage.
+ /* istanbul ignore if - defense in depth */
+ if (!this.preservePaths &&
+ entry.absolute.indexOf(this.cwd + '/') !== 0 &&
+ entry.absolute !== this.cwd) {
+ this.warn('TAR_ENTRY_ERROR', 'path escaped extraction target', {
+ entry,
+ path: normPath(entry.path),
+ resolvedPath: entry.absolute,
+ cwd: this.cwd,
+ })
+ return false
+ }
+
+ // an archive can set properties on the extraction directory, but it
+ // may not replace the cwd with a different kind of thing entirely.
+ if (entry.absolute === this.cwd &&
+ entry.type !== 'Directory' &&
+ entry.type !== 'GNUDumpDir')
+ return false
+
+ // only encode : chars that aren't drive letter indicators
+ if (this.win32) {
+ const { root: aRoot } = path.win32.parse(entry.absolute)
+ entry.absolute = aRoot + wc.encode(entry.absolute.substr(aRoot.length))
+ const { root: pRoot } = path.win32.parse(entry.path)
+ entry.path = pRoot + wc.encode(entry.path.substr(pRoot.length))
+ }
+
+ return true
+ }
+
+ [ONENTRY] (entry) {
+ if (!this[CHECKPATH](entry))
+ return entry.resume()
+
+ assert.equal(typeof entry.absolute, 'string')
+
+ switch (entry.type) {
+ case 'Directory':
+ case 'GNUDumpDir':
+ if (entry.mode)
+ entry.mode = entry.mode | 0o700
+
+ case 'File':
+ case 'OldFile':
+ case 'ContiguousFile':
+ case 'Link':
+ case 'SymbolicLink':
+ return this[CHECKFS](entry)
+
+ case 'CharacterDevice':
+ case 'BlockDevice':
+ case 'FIFO':
+ default:
+ return this[UNSUPPORTED](entry)
+ }
+ }
+
+ [ONERROR] (er, entry) {
+ // Cwd has to exist, or else nothing works. That's serious.
+ // Other errors are warnings, which raise the error in strict
+ // mode, but otherwise continue on.
+ if (er.name === 'CwdError')
+ this.emit('error', er)
+ else {
+ this.warn('TAR_ENTRY_ERROR', er, {entry})
+ this[UNPEND]()
+ entry.resume()
+ }
+ }
+
+ [MKDIR] (dir, mode, cb) {
+ mkdir(normPath(dir), {
+ uid: this.uid,
+ gid: this.gid,
+ processUid: this.processUid,
+ processGid: this.processGid,
+ umask: this.processUmask,
+ preserve: this.preservePaths,
+ unlink: this.unlink,
+ cache: this.dirCache,
+ cwd: this.cwd,
+ mode: mode,
+ noChmod: this.noChmod,
+ }, cb)
+ }
+
+ [DOCHOWN] (entry) {
+ // in preserve owner mode, chown if the entry doesn't match process
+ // in set owner mode, chown if setting doesn't match process
+ return this.forceChown ||
+ this.preserveOwner &&
+ (typeof entry.uid === 'number' && entry.uid !== this.processUid ||
+ typeof entry.gid === 'number' && entry.gid !== this.processGid)
+ ||
+ (typeof this.uid === 'number' && this.uid !== this.processUid ||
+ typeof this.gid === 'number' && this.gid !== this.processGid)
+ }
+
+ [UID] (entry) {
+ return uint32(this.uid, entry.uid, this.processUid)
+ }
+
+ [GID] (entry) {
+ return uint32(this.gid, entry.gid, this.processGid)
+ }
+
+ [FILE] (entry, fullyDone) {
+ const mode = entry.mode & 0o7777 || this.fmode
+ const stream = new fsm.WriteStream(entry.absolute, {
+ flags: getFlag(entry.size),
+ mode: mode,
+ autoClose: false,
+ })
+ stream.on('error', er => {
+ if (stream.fd)
+ fs.close(stream.fd, () => {})
+
+ // flush all the data out so that we aren't left hanging
+ // if the error wasn't actually fatal. otherwise the parse
+ // is blocked, and we never proceed.
+ stream.write = () => true
+ this[ONERROR](er, entry)
+ fullyDone()
+ })
+
+ let actions = 1
+ const done = er => {
+ if (er) {
+ /* istanbul ignore else - we should always have a fd by now */
+ if (stream.fd)
+ fs.close(stream.fd, () => {})
+
+ this[ONERROR](er, entry)
+ fullyDone()
+ return
+ }
+
+ if (--actions === 0) {
+ fs.close(stream.fd, er => {
+ if (er)
+ this[ONERROR](er, entry)
+ else
+ this[UNPEND]()
+ fullyDone()
+ })
+ }
+ }
+
+ stream.on('finish', _ => {
+ // if futimes fails, try utimes
+ // if utimes fails, fail with the original error
+ // same for fchown/chown
+ const abs = entry.absolute
+ const fd = stream.fd
+
+ if (entry.mtime && !this.noMtime) {
+ actions++
+ const atime = entry.atime || new Date()
+ const mtime = entry.mtime
+ fs.futimes(fd, atime, mtime, er =>
+ er ? fs.utimes(abs, atime, mtime, er2 => done(er2 && er))
+ : done())
+ }
+
+ if (this[DOCHOWN](entry)) {
+ actions++
+ const uid = this[UID](entry)
+ const gid = this[GID](entry)
+ fs.fchown(fd, uid, gid, er =>
+ er ? fs.chown(abs, uid, gid, er2 => done(er2 && er))
+ : done())
+ }
+
+ done()
+ })
+
+ const tx = this.transform ? this.transform(entry) || entry : entry
+ if (tx !== entry) {
+ tx.on('error', er => {
+ this[ONERROR](er, entry)
+ fullyDone()
+ })
+ entry.pipe(tx)
+ }
+ tx.pipe(stream)
+ }
+
+ [DIRECTORY] (entry, fullyDone) {
+ const mode = entry.mode & 0o7777 || this.dmode
+ this[MKDIR](entry.absolute, mode, er => {
+ if (er) {
+ this[ONERROR](er, entry)
+ fullyDone()
+ return
+ }
+
+ let actions = 1
+ const done = _ => {
+ if (--actions === 0) {
+ fullyDone()
+ this[UNPEND]()
+ entry.resume()
+ }
+ }
+
+ if (entry.mtime && !this.noMtime) {
+ actions++
+ fs.utimes(entry.absolute, entry.atime || new Date(), entry.mtime, done)
+ }
+
+ if (this[DOCHOWN](entry)) {
+ actions++
+ fs.chown(entry.absolute, this[UID](entry), this[GID](entry), done)
+ }
+
+ done()
+ })
+ }
+
+ [UNSUPPORTED] (entry) {
+ entry.unsupported = true
+ this.warn('TAR_ENTRY_UNSUPPORTED',
+ `unsupported entry type: ${entry.type}`, {entry})
+ entry.resume()
+ }
+
+ [SYMLINK] (entry, done) {
+ this[LINK](entry, entry.linkpath, 'symlink', done)
+ }
+
+ [HARDLINK] (entry, done) {
+ const linkpath = normPath(path.resolve(this.cwd, entry.linkpath))
+ this[LINK](entry, linkpath, 'link', done)
+ }
+
+ [PEND] () {
+ this[PENDING]++
+ }
+
+ [UNPEND] () {
+ this[PENDING]--
+ this[MAYBECLOSE]()
+ }
+
+ [SKIP] (entry) {
+ this[UNPEND]()
+ entry.resume()
+ }
+
+ // Check if we can reuse an existing filesystem entry safely and
+ // overwrite it, rather than unlinking and recreating
+ // Windows doesn't report a useful nlink, so we just never reuse entries
+ [ISREUSABLE] (entry, st) {
+ return entry.type === 'File' &&
+ !this.unlink &&
+ st.isFile() &&
+ st.nlink <= 1 &&
+ !isWindows
+ }
+
+ // check if a thing is there, and if so, try to clobber it
+ [CHECKFS] (entry) {
+ this[PEND]()
+ const paths = [entry.path]
+ if (entry.linkpath)
+ paths.push(entry.linkpath)
+ this.reservations.reserve(paths, done => this[CHECKFS2](entry, done))
+ }
+
+ [PRUNECACHE] (entry) {
+ // if we are not creating a directory, and the path is in the dirCache,
+ // then that means we are about to delete the directory we created
+ // previously, and it is no longer going to be a directory, and neither
+ // is any of its children.
+ // If a symbolic link is encountered, all bets are off. There is no
+ // reasonable way to sanitize the cache in such a way we will be able to
+ // avoid having filesystem collisions. If this happens with a non-symlink
+ // entry, it'll just fail to unpack, but a symlink to a directory, using an
+ // 8.3 shortname or certain unicode attacks, can evade detection and lead
+ // to arbitrary writes to anywhere on the system.
+ if (entry.type === 'SymbolicLink')
+ dropCache(this.dirCache)
+ else if (entry.type !== 'Directory')
+ pruneCache(this.dirCache, entry.absolute)
+ }
+
+ [CHECKFS2] (entry, fullyDone) {
+ this[PRUNECACHE](entry)
+
+ const done = er => {
+ this[PRUNECACHE](entry)
+ fullyDone(er)
+ }
+
+ const checkCwd = () => {
+ this[MKDIR](this.cwd, this.dmode, er => {
+ if (er) {
+ this[ONERROR](er, entry)
+ done()
+ return
+ }
+ this[CHECKED_CWD] = true
+ start()
+ })
+ }
+
+ const start = () => {
+ if (entry.absolute !== this.cwd) {
+ const parent = normPath(path.dirname(entry.absolute))
+ if (parent !== this.cwd) {
+ return this[MKDIR](parent, this.dmode, er => {
+ if (er) {
+ this[ONERROR](er, entry)
+ done()
+ return
+ }
+ afterMakeParent()
+ })
+ }
+ }
+ afterMakeParent()
+ }
+
+ const afterMakeParent = () => {
+ fs.lstat(entry.absolute, (lstatEr, st) => {
+ if (st && (this.keep || this.newer && st.mtime > entry.mtime)) {
+ this[SKIP](entry)
+ done()
+ return
+ }
+ if (lstatEr || this[ISREUSABLE](entry, st))
+ return this[MAKEFS](null, entry, done)
+
+ if (st.isDirectory()) {
+ if (entry.type === 'Directory') {
+ const needChmod = !this.noChmod &&
+ entry.mode &&
+ (st.mode & 0o7777) !== entry.mode
+ const afterChmod = er => this[MAKEFS](er, entry, done)
+ if (!needChmod)
+ return afterChmod()
+ return fs.chmod(entry.absolute, entry.mode, afterChmod)
+ }
+ // Not a dir entry, have to remove it.
+ // NB: the only way to end up with an entry that is the cwd
+ // itself, in such a way that == does not detect, is a
+ // tricky windows absolute path with UNC or 8.3 parts (and
+ // preservePaths:true, or else it will have been stripped).
+ // In that case, the user has opted out of path protections
+ // explicitly, so if they blow away the cwd, c'est la vie.
+ if (entry.absolute !== this.cwd) {
+ return fs.rmdir(entry.absolute, er =>
+ this[MAKEFS](er, entry, done))
+ }
+ }
+
+ // not a dir, and not reusable
+ // don't remove if the cwd, we want that error
+ if (entry.absolute === this.cwd)
+ return this[MAKEFS](null, entry, done)
+
+ unlinkFile(entry.absolute, er =>
+ this[MAKEFS](er, entry, done))
+ })
+ }
+
+ if (this[CHECKED_CWD])
+ start()
+ else
+ checkCwd()
+ }
+
+ [MAKEFS] (er, entry, done) {
+ if (er) {
+ this[ONERROR](er, entry)
+ done()
+ return
+ }
+
+ switch (entry.type) {
+ case 'File':
+ case 'OldFile':
+ case 'ContiguousFile':
+ return this[FILE](entry, done)
+
+ case 'Link':
+ return this[HARDLINK](entry, done)
+
+ case 'SymbolicLink':
+ return this[SYMLINK](entry, done)
+
+ case 'Directory':
+ case 'GNUDumpDir':
+ return this[DIRECTORY](entry, done)
+ }
+ }
+
+ [LINK] (entry, linkpath, link, done) {
+ // XXX: get the type ('symlink' or 'junction') for windows
+ fs[link](linkpath, entry.absolute, er => {
+ if (er)
+ this[ONERROR](er, entry)
+ else {
+ this[UNPEND]()
+ entry.resume()
+ }
+ done()
+ })
+ }
+}
+
+const callSync = fn => {
+ try {
+ return [null, fn()]
+ } catch (er) {
+ return [er, null]
+ }
+}
+class UnpackSync extends Unpack {
+ [MAKEFS] (er, entry) {
+ return super[MAKEFS](er, entry, () => {})
+ }
+
+ [CHECKFS] (entry) {
+ this[PRUNECACHE](entry)
+
+ if (!this[CHECKED_CWD]) {
+ const er = this[MKDIR](this.cwd, this.dmode)
+ if (er)
+ return this[ONERROR](er, entry)
+ this[CHECKED_CWD] = true
+ }
+
+ // don't bother to make the parent if the current entry is the cwd,
+ // we've already checked it.
+ if (entry.absolute !== this.cwd) {
+ const parent = normPath(path.dirname(entry.absolute))
+ if (parent !== this.cwd) {
+ const mkParent = this[MKDIR](parent, this.dmode)
+ if (mkParent)
+ return this[ONERROR](mkParent, entry)
+ }
+ }
+
+ const [lstatEr, st] = callSync(() => fs.lstatSync(entry.absolute))
+ if (st && (this.keep || this.newer && st.mtime > entry.mtime))
+ return this[SKIP](entry)
+
+ if (lstatEr || this[ISREUSABLE](entry, st))
+ return this[MAKEFS](null, entry)
+
+ if (st.isDirectory()) {
+ if (entry.type === 'Directory') {
+ const needChmod = !this.noChmod &&
+ entry.mode &&
+ (st.mode & 0o7777) !== entry.mode
+ const [er] = needChmod ? callSync(() => {
+ fs.chmodSync(entry.absolute, entry.mode)
+ }) : []
+ return this[MAKEFS](er, entry)
+ }
+ // not a dir entry, have to remove it
+ const [er] = callSync(() => fs.rmdirSync(entry.absolute))
+ this[MAKEFS](er, entry)
+ }
+
+ // not a dir, and not reusable.
+ // don't remove if it's the cwd, since we want that error.
+ const [er] = entry.absolute === this.cwd ? []
+ : callSync(() => unlinkFileSync(entry.absolute))
+ this[MAKEFS](er, entry)
+ }
+
+ [FILE] (entry, done) {
+ const mode = entry.mode & 0o7777 || this.fmode
+
+ const oner = er => {
+ let closeError
+ try {
+ fs.closeSync(fd)
+ } catch (e) {
+ closeError = e
+ }
+ if (er || closeError)
+ this[ONERROR](er || closeError, entry)
+ done()
+ }
+
+ let fd
+ try {
+ fd = fs.openSync(entry.absolute, getFlag(entry.size), mode)
+ } catch (er) {
+ return oner(er)
+ }
+ const tx = this.transform ? this.transform(entry) || entry : entry
+ if (tx !== entry) {
+ tx.on('error', er => this[ONERROR](er, entry))
+ entry.pipe(tx)
+ }
+
+ tx.on('data', chunk => {
+ try {
+ fs.writeSync(fd, chunk, 0, chunk.length)
+ } catch (er) {
+ oner(er)
+ }
+ })
+
+ tx.on('end', _ => {
+ let er = null
+ // try both, falling futimes back to utimes
+ // if either fails, handle the first error
+ if (entry.mtime && !this.noMtime) {
+ const atime = entry.atime || new Date()
+ const mtime = entry.mtime
+ try {
+ fs.futimesSync(fd, atime, mtime)
+ } catch (futimeser) {
+ try {
+ fs.utimesSync(entry.absolute, atime, mtime)
+ } catch (utimeser) {
+ er = futimeser
+ }
+ }
+ }
+
+ if (this[DOCHOWN](entry)) {
+ const uid = this[UID](entry)
+ const gid = this[GID](entry)
+
+ try {
+ fs.fchownSync(fd, uid, gid)
+ } catch (fchowner) {
+ try {
+ fs.chownSync(entry.absolute, uid, gid)
+ } catch (chowner) {
+ er = er || fchowner
+ }
+ }
+ }
+
+ oner(er)
+ })
+ }
+
+ [DIRECTORY] (entry, done) {
+ const mode = entry.mode & 0o7777 || this.dmode
+ const er = this[MKDIR](entry.absolute, mode)
+ if (er) {
+ this[ONERROR](er, entry)
+ done()
+ return
+ }
+ if (entry.mtime && !this.noMtime) {
+ try {
+ fs.utimesSync(entry.absolute, entry.atime || new Date(), entry.mtime)
+ } catch (er) {}
+ }
+ if (this[DOCHOWN](entry)) {
+ try {
+ fs.chownSync(entry.absolute, this[UID](entry), this[GID](entry))
+ } catch (er) {}
+ }
+ done()
+ entry.resume()
+ }
+
+ [MKDIR] (dir, mode) {
+ try {
+ return mkdir.sync(normPath(dir), {
+ uid: this.uid,
+ gid: this.gid,
+ processUid: this.processUid,
+ processGid: this.processGid,
+ umask: this.processUmask,
+ preserve: this.preservePaths,
+ unlink: this.unlink,
+ cache: this.dirCache,
+ cwd: this.cwd,
+ mode: mode,
+ })
+ } catch (er) {
+ return er
+ }
+ }
+
+ [LINK] (entry, linkpath, link, done) {
+ try {
+ fs[link + 'Sync'](linkpath, entry.absolute)
+ done()
+ entry.resume()
+ } catch (er) {
+ return this[ONERROR](er, entry)
+ }
+ }
+}
+
+Unpack.Sync = UnpackSync
+module.exports = Unpack
diff --git a/backend/node_modules/tar/lib/update.js b/backend/node_modules/tar/lib/update.js
new file mode 100644
index 0000000..a5784b7
--- /dev/null
+++ b/backend/node_modules/tar/lib/update.js
@@ -0,0 +1,36 @@
+'use strict'
+
+// tar -u
+
+const hlo = require('./high-level-opt.js')
+const r = require('./replace.js')
+// just call tar.r with the filter and mtimeCache
+
+module.exports = (opt_, files, cb) => {
+ const opt = hlo(opt_)
+
+ if (!opt.file)
+ throw new TypeError('file is required')
+
+ if (opt.gzip)
+ throw new TypeError('cannot append to compressed archives')
+
+ if (!files || !Array.isArray(files) || !files.length)
+ throw new TypeError('no files or directories specified')
+
+ files = Array.from(files)
+
+ mtimeFilter(opt)
+ return r(opt, files, cb)
+}
+
+const mtimeFilter = opt => {
+ const filter = opt.filter
+
+ if (!opt.mtimeCache)
+ opt.mtimeCache = new Map()
+
+ opt.filter = filter ? (path, stat) =>
+ filter(path, stat) && !(opt.mtimeCache.get(path) > stat.mtime)
+ : (path, stat) => !(opt.mtimeCache.get(path) > stat.mtime)
+}
diff --git a/backend/node_modules/tar/lib/warn-mixin.js b/backend/node_modules/tar/lib/warn-mixin.js
new file mode 100644
index 0000000..aeebb53
--- /dev/null
+++ b/backend/node_modules/tar/lib/warn-mixin.js
@@ -0,0 +1,21 @@
+'use strict'
+module.exports = Base => class extends Base {
+ warn (code, message, data = {}) {
+ if (this.file)
+ data.file = this.file
+ if (this.cwd)
+ data.cwd = this.cwd
+ data.code = message instanceof Error && message.code || code
+ data.tarCode = code
+ if (!this.strict && data.recoverable !== false) {
+ if (message instanceof Error) {
+ data = Object.assign(message, data)
+ message = message.message
+ }
+ this.emit('warn', data.tarCode, message, data)
+ } else if (message instanceof Error)
+ this.emit('error', Object.assign(message, data))
+ else
+ this.emit('error', Object.assign(new Error(`${code}: ${message}`), data))
+ }
+}
diff --git a/backend/node_modules/tar/lib/winchars.js b/backend/node_modules/tar/lib/winchars.js
new file mode 100644
index 0000000..ebcab4a
--- /dev/null
+++ b/backend/node_modules/tar/lib/winchars.js
@@ -0,0 +1,23 @@
+'use strict'
+
+// When writing files on Windows, translate the characters to their
+// 0xf000 higher-encoded versions.
+
+const raw = [
+ '|',
+ '<',
+ '>',
+ '?',
+ ':',
+]
+
+const win = raw.map(char =>
+ String.fromCharCode(0xf000 + char.charCodeAt(0)))
+
+const toWin = new Map(raw.map((char, i) => [char, win[i]]))
+const toRaw = new Map(win.map((char, i) => [char, raw[i]]))
+
+module.exports = {
+ encode: s => raw.reduce((s, c) => s.split(c).join(toWin.get(c)), s),
+ decode: s => win.reduce((s, c) => s.split(c).join(toRaw.get(c)), s),
+}
diff --git a/backend/node_modules/tar/lib/write-entry.js b/backend/node_modules/tar/lib/write-entry.js
new file mode 100644
index 0000000..3702f2a
--- /dev/null
+++ b/backend/node_modules/tar/lib/write-entry.js
@@ -0,0 +1,525 @@
+'use strict'
+const MiniPass = require('minipass')
+const Pax = require('./pax.js')
+const Header = require('./header.js')
+const fs = require('fs')
+const path = require('path')
+const normPath = require('./normalize-windows-path.js')
+const stripSlash = require('./strip-trailing-slashes.js')
+
+const prefixPath = (path, prefix) => {
+ if (!prefix)
+ return normPath(path)
+ path = normPath(path).replace(/^\.(\/|$)/, '')
+ return stripSlash(prefix) + '/' + path
+}
+
+const maxReadSize = 16 * 1024 * 1024
+const PROCESS = Symbol('process')
+const FILE = Symbol('file')
+const DIRECTORY = Symbol('directory')
+const SYMLINK = Symbol('symlink')
+const HARDLINK = Symbol('hardlink')
+const HEADER = Symbol('header')
+const READ = Symbol('read')
+const LSTAT = Symbol('lstat')
+const ONLSTAT = Symbol('onlstat')
+const ONREAD = Symbol('onread')
+const ONREADLINK = Symbol('onreadlink')
+const OPENFILE = Symbol('openfile')
+const ONOPENFILE = Symbol('onopenfile')
+const CLOSE = Symbol('close')
+const MODE = Symbol('mode')
+const AWAITDRAIN = Symbol('awaitDrain')
+const ONDRAIN = Symbol('ondrain')
+const PREFIX = Symbol('prefix')
+const HAD_ERROR = Symbol('hadError')
+const warner = require('./warn-mixin.js')
+const winchars = require('./winchars.js')
+const stripAbsolutePath = require('./strip-absolute-path.js')
+
+const modeFix = require('./mode-fix.js')
+
+const WriteEntry = warner(class WriteEntry extends MiniPass {
+ constructor (p, opt) {
+ opt = opt || {}
+ super(opt)
+ if (typeof p !== 'string')
+ throw new TypeError('path is required')
+ this.path = normPath(p)
+ // suppress atime, ctime, uid, gid, uname, gname
+ this.portable = !!opt.portable
+ // until node has builtin pwnam functions, this'll have to do
+ this.myuid = process.getuid && process.getuid() || 0
+ this.myuser = process.env.USER || ''
+ this.maxReadSize = opt.maxReadSize || maxReadSize
+ this.linkCache = opt.linkCache || new Map()
+ this.statCache = opt.statCache || new Map()
+ this.preservePaths = !!opt.preservePaths
+ this.cwd = normPath(opt.cwd || process.cwd())
+ this.strict = !!opt.strict
+ this.noPax = !!opt.noPax
+ this.noMtime = !!opt.noMtime
+ this.mtime = opt.mtime || null
+ this.prefix = opt.prefix ? normPath(opt.prefix) : null
+
+ this.fd = null
+ this.blockLen = null
+ this.blockRemain = null
+ this.buf = null
+ this.offset = null
+ this.length = null
+ this.pos = null
+ this.remain = null
+
+ if (typeof opt.onwarn === 'function')
+ this.on('warn', opt.onwarn)
+
+ let pathWarn = false
+ if (!this.preservePaths) {
+ const [root, stripped] = stripAbsolutePath(this.path)
+ if (root) {
+ this.path = stripped
+ pathWarn = root
+ }
+ }
+
+ this.win32 = !!opt.win32 || process.platform === 'win32'
+ if (this.win32) {
+ // force the \ to / normalization, since we might not *actually*
+ // be on windows, but want \ to be considered a path separator.
+ this.path = winchars.decode(this.path.replace(/\\/g, '/'))
+ p = p.replace(/\\/g, '/')
+ }
+
+ this.absolute = normPath(opt.absolute || path.resolve(this.cwd, p))
+
+ if (this.path === '')
+ this.path = './'
+
+ if (pathWarn) {
+ this.warn('TAR_ENTRY_INFO', `stripping ${pathWarn} from absolute path`, {
+ entry: this,
+ path: pathWarn + this.path,
+ })
+ }
+
+ if (this.statCache.has(this.absolute))
+ this[ONLSTAT](this.statCache.get(this.absolute))
+ else
+ this[LSTAT]()
+ }
+
+ emit (ev, ...data) {
+ if (ev === 'error')
+ this[HAD_ERROR] = true
+ return super.emit(ev, ...data)
+ }
+
+ [LSTAT] () {
+ fs.lstat(this.absolute, (er, stat) => {
+ if (er)
+ return this.emit('error', er)
+ this[ONLSTAT](stat)
+ })
+ }
+
+ [ONLSTAT] (stat) {
+ this.statCache.set(this.absolute, stat)
+ this.stat = stat
+ if (!stat.isFile())
+ stat.size = 0
+ this.type = getType(stat)
+ this.emit('stat', stat)
+ this[PROCESS]()
+ }
+
+ [PROCESS] () {
+ switch (this.type) {
+ case 'File': return this[FILE]()
+ case 'Directory': return this[DIRECTORY]()
+ case 'SymbolicLink': return this[SYMLINK]()
+ // unsupported types are ignored.
+ default: return this.end()
+ }
+ }
+
+ [MODE] (mode) {
+ return modeFix(mode, this.type === 'Directory', this.portable)
+ }
+
+ [PREFIX] (path) {
+ return prefixPath(path, this.prefix)
+ }
+
+ [HEADER] () {
+ if (this.type === 'Directory' && this.portable)
+ this.noMtime = true
+
+ this.header = new Header({
+ path: this[PREFIX](this.path),
+ // only apply the prefix to hard links.
+ linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath)
+ : this.linkpath,
+ // only the permissions and setuid/setgid/sticky bitflags
+ // not the higher-order bits that specify file type
+ mode: this[MODE](this.stat.mode),
+ uid: this.portable ? null : this.stat.uid,
+ gid: this.portable ? null : this.stat.gid,
+ size: this.stat.size,
+ mtime: this.noMtime ? null : this.mtime || this.stat.mtime,
+ type: this.type,
+ uname: this.portable ? null :
+ this.stat.uid === this.myuid ? this.myuser : '',
+ atime: this.portable ? null : this.stat.atime,
+ ctime: this.portable ? null : this.stat.ctime,
+ })
+
+ if (this.header.encode() && !this.noPax) {
+ super.write(new Pax({
+ atime: this.portable ? null : this.header.atime,
+ ctime: this.portable ? null : this.header.ctime,
+ gid: this.portable ? null : this.header.gid,
+ mtime: this.noMtime ? null : this.mtime || this.header.mtime,
+ path: this[PREFIX](this.path),
+ linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath)
+ : this.linkpath,
+ size: this.header.size,
+ uid: this.portable ? null : this.header.uid,
+ uname: this.portable ? null : this.header.uname,
+ dev: this.portable ? null : this.stat.dev,
+ ino: this.portable ? null : this.stat.ino,
+ nlink: this.portable ? null : this.stat.nlink,
+ }).encode())
+ }
+ super.write(this.header.block)
+ }
+
+ [DIRECTORY] () {
+ if (this.path.substr(-1) !== '/')
+ this.path += '/'
+ this.stat.size = 0
+ this[HEADER]()
+ this.end()
+ }
+
+ [SYMLINK] () {
+ fs.readlink(this.absolute, (er, linkpath) => {
+ if (er)
+ return this.emit('error', er)
+ this[ONREADLINK](linkpath)
+ })
+ }
+
+ [ONREADLINK] (linkpath) {
+ this.linkpath = normPath(linkpath)
+ this[HEADER]()
+ this.end()
+ }
+
+ [HARDLINK] (linkpath) {
+ this.type = 'Link'
+ this.linkpath = normPath(path.relative(this.cwd, linkpath))
+ this.stat.size = 0
+ this[HEADER]()
+ this.end()
+ }
+
+ [FILE] () {
+ if (this.stat.nlink > 1) {
+ const linkKey = this.stat.dev + ':' + this.stat.ino
+ if (this.linkCache.has(linkKey)) {
+ const linkpath = this.linkCache.get(linkKey)
+ if (linkpath.indexOf(this.cwd) === 0)
+ return this[HARDLINK](linkpath)
+ }
+ this.linkCache.set(linkKey, this.absolute)
+ }
+
+ this[HEADER]()
+ if (this.stat.size === 0)
+ return this.end()
+
+ this[OPENFILE]()
+ }
+
+ [OPENFILE] () {
+ fs.open(this.absolute, 'r', (er, fd) => {
+ if (er)
+ return this.emit('error', er)
+ this[ONOPENFILE](fd)
+ })
+ }
+
+ [ONOPENFILE] (fd) {
+ this.fd = fd
+ if (this[HAD_ERROR])
+ return this[CLOSE]()
+
+ this.blockLen = 512 * Math.ceil(this.stat.size / 512)
+ this.blockRemain = this.blockLen
+ const bufLen = Math.min(this.blockLen, this.maxReadSize)
+ this.buf = Buffer.allocUnsafe(bufLen)
+ this.offset = 0
+ this.pos = 0
+ this.remain = this.stat.size
+ this.length = this.buf.length
+ this[READ]()
+ }
+
+ [READ] () {
+ const { fd, buf, offset, length, pos } = this
+ fs.read(fd, buf, offset, length, pos, (er, bytesRead) => {
+ if (er) {
+ // ignoring the error from close(2) is a bad practice, but at
+ // this point we already have an error, don't need another one
+ return this[CLOSE](() => this.emit('error', er))
+ }
+ this[ONREAD](bytesRead)
+ })
+ }
+
+ [CLOSE] (cb) {
+ fs.close(this.fd, cb)
+ }
+
+ [ONREAD] (bytesRead) {
+ if (bytesRead <= 0 && this.remain > 0) {
+ const er = new Error('encountered unexpected EOF')
+ er.path = this.absolute
+ er.syscall = 'read'
+ er.code = 'EOF'
+ return this[CLOSE](() => this.emit('error', er))
+ }
+
+ if (bytesRead > this.remain) {
+ const er = new Error('did not encounter expected EOF')
+ er.path = this.absolute
+ er.syscall = 'read'
+ er.code = 'EOF'
+ return this[CLOSE](() => this.emit('error', er))
+ }
+
+ // null out the rest of the buffer, if we could fit the block padding
+ // at the end of this loop, we've incremented bytesRead and this.remain
+ // to be incremented up to the blockRemain level, as if we had expected
+ // to get a null-padded file, and read it until the end. then we will
+ // decrement both remain and blockRemain by bytesRead, and know that we
+ // reached the expected EOF, without any null buffer to append.
+ if (bytesRead === this.remain) {
+ for (let i = bytesRead; i < this.length && bytesRead < this.blockRemain; i++) {
+ this.buf[i + this.offset] = 0
+ bytesRead++
+ this.remain++
+ }
+ }
+
+ const writeBuf = this.offset === 0 && bytesRead === this.buf.length ?
+ this.buf : this.buf.slice(this.offset, this.offset + bytesRead)
+
+ const flushed = this.write(writeBuf)
+ if (!flushed)
+ this[AWAITDRAIN](() => this[ONDRAIN]())
+ else
+ this[ONDRAIN]()
+ }
+
+ [AWAITDRAIN] (cb) {
+ this.once('drain', cb)
+ }
+
+ write (writeBuf) {
+ if (this.blockRemain < writeBuf.length) {
+ const er = new Error('writing more data than expected')
+ er.path = this.absolute
+ return this.emit('error', er)
+ }
+ this.remain -= writeBuf.length
+ this.blockRemain -= writeBuf.length
+ this.pos += writeBuf.length
+ this.offset += writeBuf.length
+ return super.write(writeBuf)
+ }
+
+ [ONDRAIN] () {
+ if (!this.remain) {
+ if (this.blockRemain)
+ super.write(Buffer.alloc(this.blockRemain))
+ return this[CLOSE](er => er ? this.emit('error', er) : this.end())
+ }
+
+ if (this.offset >= this.length) {
+ // if we only have a smaller bit left to read, alloc a smaller buffer
+ // otherwise, keep it the same length it was before.
+ this.buf = Buffer.allocUnsafe(Math.min(this.blockRemain, this.buf.length))
+ this.offset = 0
+ }
+ this.length = this.buf.length - this.offset
+ this[READ]()
+ }
+})
+
+class WriteEntrySync extends WriteEntry {
+ [LSTAT] () {
+ this[ONLSTAT](fs.lstatSync(this.absolute))
+ }
+
+ [SYMLINK] () {
+ this[ONREADLINK](fs.readlinkSync(this.absolute))
+ }
+
+ [OPENFILE] () {
+ this[ONOPENFILE](fs.openSync(this.absolute, 'r'))
+ }
+
+ [READ] () {
+ let threw = true
+ try {
+ const { fd, buf, offset, length, pos } = this
+ const bytesRead = fs.readSync(fd, buf, offset, length, pos)
+ this[ONREAD](bytesRead)
+ threw = false
+ } finally {
+ // ignoring the error from close(2) is a bad practice, but at
+ // this point we already have an error, don't need another one
+ if (threw) {
+ try {
+ this[CLOSE](() => {})
+ } catch (er) {}
+ }
+ }
+ }
+
+ [AWAITDRAIN] (cb) {
+ cb()
+ }
+
+ [CLOSE] (cb) {
+ fs.closeSync(this.fd)
+ cb()
+ }
+}
+
+const WriteEntryTar = warner(class WriteEntryTar extends MiniPass {
+ constructor (readEntry, opt) {
+ opt = opt || {}
+ super(opt)
+ this.preservePaths = !!opt.preservePaths
+ this.portable = !!opt.portable
+ this.strict = !!opt.strict
+ this.noPax = !!opt.noPax
+ this.noMtime = !!opt.noMtime
+
+ this.readEntry = readEntry
+ this.type = readEntry.type
+ if (this.type === 'Directory' && this.portable)
+ this.noMtime = true
+
+ this.prefix = opt.prefix || null
+
+ this.path = normPath(readEntry.path)
+ this.mode = this[MODE](readEntry.mode)
+ this.uid = this.portable ? null : readEntry.uid
+ this.gid = this.portable ? null : readEntry.gid
+ this.uname = this.portable ? null : readEntry.uname
+ this.gname = this.portable ? null : readEntry.gname
+ this.size = readEntry.size
+ this.mtime = this.noMtime ? null : opt.mtime || readEntry.mtime
+ this.atime = this.portable ? null : readEntry.atime
+ this.ctime = this.portable ? null : readEntry.ctime
+ this.linkpath = normPath(readEntry.linkpath)
+
+ if (typeof opt.onwarn === 'function')
+ this.on('warn', opt.onwarn)
+
+ let pathWarn = false
+ if (!this.preservePaths) {
+ const [root, stripped] = stripAbsolutePath(this.path)
+ if (root) {
+ this.path = stripped
+ pathWarn = root
+ }
+ }
+
+ this.remain = readEntry.size
+ this.blockRemain = readEntry.startBlockSize
+
+ this.header = new Header({
+ path: this[PREFIX](this.path),
+ linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath)
+ : this.linkpath,
+ // only the permissions and setuid/setgid/sticky bitflags
+ // not the higher-order bits that specify file type
+ mode: this.mode,
+ uid: this.portable ? null : this.uid,
+ gid: this.portable ? null : this.gid,
+ size: this.size,
+ mtime: this.noMtime ? null : this.mtime,
+ type: this.type,
+ uname: this.portable ? null : this.uname,
+ atime: this.portable ? null : this.atime,
+ ctime: this.portable ? null : this.ctime,
+ })
+
+ if (pathWarn) {
+ this.warn('TAR_ENTRY_INFO', `stripping ${pathWarn} from absolute path`, {
+ entry: this,
+ path: pathWarn + this.path,
+ })
+ }
+
+ if (this.header.encode() && !this.noPax) {
+ super.write(new Pax({
+ atime: this.portable ? null : this.atime,
+ ctime: this.portable ? null : this.ctime,
+ gid: this.portable ? null : this.gid,
+ mtime: this.noMtime ? null : this.mtime,
+ path: this[PREFIX](this.path),
+ linkpath: this.type === 'Link' ? this[PREFIX](this.linkpath)
+ : this.linkpath,
+ size: this.size,
+ uid: this.portable ? null : this.uid,
+ uname: this.portable ? null : this.uname,
+ dev: this.portable ? null : this.readEntry.dev,
+ ino: this.portable ? null : this.readEntry.ino,
+ nlink: this.portable ? null : this.readEntry.nlink,
+ }).encode())
+ }
+
+ super.write(this.header.block)
+ readEntry.pipe(this)
+ }
+
+ [PREFIX] (path) {
+ return prefixPath(path, this.prefix)
+ }
+
+ [MODE] (mode) {
+ return modeFix(mode, this.type === 'Directory', this.portable)
+ }
+
+ write (data) {
+ const writeLen = data.length
+ if (writeLen > this.blockRemain)
+ throw new Error('writing more to entry than is appropriate')
+ this.blockRemain -= writeLen
+ return super.write(data)
+ }
+
+ end () {
+ if (this.blockRemain)
+ super.write(Buffer.alloc(this.blockRemain))
+ return super.end()
+ }
+})
+
+WriteEntry.Sync = WriteEntrySync
+WriteEntry.Tar = WriteEntryTar
+
+const getType = stat =>
+ stat.isFile() ? 'File'
+ : stat.isDirectory() ? 'Directory'
+ : stat.isSymbolicLink() ? 'SymbolicLink'
+ : 'Unsupported'
+
+module.exports = WriteEntry
diff --git a/backend/node_modules/tar/package.json b/backend/node_modules/tar/package.json
new file mode 100644
index 0000000..1f2a3bd
--- /dev/null
+++ b/backend/node_modules/tar/package.json
@@ -0,0 +1,92 @@
+{
+ "_from": "tar@^6.1.11",
+ "_id": "tar@6.1.11",
+ "_inBundle": false,
+ "_integrity": "sha512-an/KZQzQUkZCkuoAA64hM92X0Urb6VpRhAFllDzz44U2mcD5scmT3zBc4VgVpkugF580+DQn8eAFSyoQt0tznA==",
+ "_location": "/tar",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "tar@^6.1.11",
+ "name": "tar",
+ "escapedName": "tar",
+ "rawSpec": "^6.1.11",
+ "saveSpec": null,
+ "fetchSpec": "^6.1.11"
+ },
+ "_requiredBy": [
+ "/@mapbox/node-pre-gyp"
+ ],
+ "_resolved": "https://registry.npmjs.org/tar/-/tar-6.1.11.tgz",
+ "_shasum": "6760a38f003afa1b2ffd0ffe9e9abbd0eab3d621",
+ "_spec": "tar@^6.1.11",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/@mapbox/node-pre-gyp",
+ "author": {
+ "name": "Isaac Z. Schlueter",
+ "email": "i@izs.me",
+ "url": "http://blog.izs.me/"
+ },
+ "bugs": {
+ "url": "https://github.com/npm/node-tar/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "chownr": "^2.0.0",
+ "fs-minipass": "^2.0.0",
+ "minipass": "^3.0.0",
+ "minizlib": "^2.1.1",
+ "mkdirp": "^1.0.3",
+ "yallist": "^4.0.0"
+ },
+ "deprecated": false,
+ "description": "tar for node",
+ "devDependencies": {
+ "chmodr": "^1.2.0",
+ "end-of-stream": "^1.4.3",
+ "eslint": "^7.17.0",
+ "eslint-plugin-import": "^2.22.1",
+ "eslint-plugin-node": "^11.1.0",
+ "eslint-plugin-promise": "^4.2.1",
+ "eslint-plugin-standard": "^5.0.0",
+ "events-to-array": "^1.1.2",
+ "mutate-fs": "^2.1.1",
+ "rimraf": "^2.7.1",
+ "tap": "^15.0.9",
+ "tar-fs": "^1.16.3",
+ "tar-stream": "^1.6.2"
+ },
+ "engines": {
+ "node": ">= 10"
+ },
+ "files": [
+ "index.js",
+ "lib/*.js"
+ ],
+ "homepage": "https://github.com/npm/node-tar#readme",
+ "license": "ISC",
+ "name": "tar",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/npm/node-tar.git"
+ },
+ "scripts": {
+ "bench": "for i in benchmarks/*/*.js; do echo $i; for j in {1..5}; do node $i || break; done; done",
+ "eslint": "eslint",
+ "genparse": "node scripts/generate-parse-fixtures.js",
+ "lint": "npm run eslint -- test lib",
+ "lintfix": "npm run lint -- --fix",
+ "posttest": "npm run lint",
+ "postversion": "npm publish",
+ "prepublishOnly": "git push origin --follow-tags",
+ "preversion": "npm test",
+ "test": "node test/fixtures/test.js",
+ "test:posix": "tap",
+ "test:win32": "tap --lines=98 --branches=98 --statements=98 --functions=98"
+ },
+ "tap": {
+ "coverage-map": "map.js",
+ "check-coverage": true
+ },
+ "version": "6.1.11"
+}
diff --git a/backend/node_modules/util-deprecate/History.md b/backend/node_modules/util-deprecate/History.md
new file mode 100644
index 0000000..acc8675
--- /dev/null
+++ b/backend/node_modules/util-deprecate/History.md
@@ -0,0 +1,16 @@
+
+1.0.2 / 2015-10-07
+==================
+
+ * use try/catch when checking `localStorage` (#3, @kumavis)
+
+1.0.1 / 2014-11-25
+==================
+
+ * browser: use `console.warn()` for deprecation calls
+ * browser: more jsdocs
+
+1.0.0 / 2014-04-30
+==================
+
+ * initial commit
diff --git a/backend/node_modules/util-deprecate/LICENSE b/backend/node_modules/util-deprecate/LICENSE
new file mode 100644
index 0000000..6a60e8c
--- /dev/null
+++ b/backend/node_modules/util-deprecate/LICENSE
@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2014 Nathan Rajlich <nathan@tootallnate.net>
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/util-deprecate/README.md b/backend/node_modules/util-deprecate/README.md
new file mode 100644
index 0000000..75622fa
--- /dev/null
+++ b/backend/node_modules/util-deprecate/README.md
@@ -0,0 +1,53 @@
+util-deprecate
+==============
+### The Node.js `util.deprecate()` function with browser support
+
+In Node.js, this module simply re-exports the `util.deprecate()` function.
+
+In the web browser (i.e. via browserify), a browser-specific implementation
+of the `util.deprecate()` function is used.
+
+
+## API
+
+A `deprecate()` function is the only thing exposed by this module.
+
+``` javascript
+// setup:
+exports.foo = deprecate(foo, 'foo() is deprecated, use bar() instead');
+
+
+// users see:
+foo();
+// foo() is deprecated, use bar() instead
+foo();
+foo();
+```
+
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014 Nathan Rajlich <nathan@tootallnate.net>
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/backend/node_modules/util-deprecate/browser.js b/backend/node_modules/util-deprecate/browser.js
new file mode 100644
index 0000000..549ae2f
--- /dev/null
+++ b/backend/node_modules/util-deprecate/browser.js
@@ -0,0 +1,67 @@
+
+/**
+ * Module exports.
+ */
+
+module.exports = deprecate;
+
+/**
+ * Mark that a method should not be used.
+ * Returns a modified function which warns once by default.
+ *
+ * If `localStorage.noDeprecation = true` is set, then it is a no-op.
+ *
+ * If `localStorage.throwDeprecation = true` is set, then deprecated functions
+ * will throw an Error when invoked.
+ *
+ * If `localStorage.traceDeprecation = true` is set, then deprecated functions
+ * will invoke `console.trace()` instead of `console.error()`.
+ *
+ * @param {Function} fn - the function to deprecate
+ * @param {String} msg - the string to print to the console when `fn` is invoked
+ * @returns {Function} a new "deprecated" version of `fn`
+ * @api public
+ */
+
+function deprecate (fn, msg) {
+ if (config('noDeprecation')) {
+ return fn;
+ }
+
+ var warned = false;
+ function deprecated() {
+ if (!warned) {
+ if (config('throwDeprecation')) {
+ throw new Error(msg);
+ } else if (config('traceDeprecation')) {
+ console.trace(msg);
+ } else {
+ console.warn(msg);
+ }
+ warned = true;
+ }
+ return fn.apply(this, arguments);
+ }
+
+ return deprecated;
+}
+
+/**
+ * Checks `localStorage` for boolean values for the given `name`.
+ *
+ * @param {String} name
+ * @returns {Boolean}
+ * @api private
+ */
+
+function config (name) {
+ // accessing global.localStorage can trigger a DOMException in sandboxed iframes
+ try {
+ if (!global.localStorage) return false;
+ } catch (_) {
+ return false;
+ }
+ var val = global.localStorage[name];
+ if (null == val) return false;
+ return String(val).toLowerCase() === 'true';
+}
diff --git a/backend/node_modules/util-deprecate/node.js b/backend/node_modules/util-deprecate/node.js
new file mode 100644
index 0000000..5e6fcff
--- /dev/null
+++ b/backend/node_modules/util-deprecate/node.js
@@ -0,0 +1,6 @@
+
+/**
+ * For Node.js, simply re-export the core `util.deprecate` function.
+ */
+
+module.exports = require('util').deprecate;
diff --git a/backend/node_modules/util-deprecate/package.json b/backend/node_modules/util-deprecate/package.json
new file mode 100644
index 0000000..db9ce03
--- /dev/null
+++ b/backend/node_modules/util-deprecate/package.json
@@ -0,0 +1,56 @@
+{
+ "_from": "util-deprecate@^1.0.1",
+ "_id": "util-deprecate@1.0.2",
+ "_inBundle": false,
+ "_integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+ "_location": "/util-deprecate",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "util-deprecate@^1.0.1",
+ "name": "util-deprecate",
+ "escapedName": "util-deprecate",
+ "rawSpec": "^1.0.1",
+ "saveSpec": null,
+ "fetchSpec": "^1.0.1"
+ },
+ "_requiredBy": [
+ "/readable-stream"
+ ],
+ "_resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+ "_shasum": "450d4dc9fa70de732762fbd2d4a28981419a0ccf",
+ "_spec": "util-deprecate@^1.0.1",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/readable-stream",
+ "author": {
+ "name": "Nathan Rajlich",
+ "email": "nathan@tootallnate.net",
+ "url": "http://n8.io/"
+ },
+ "browser": "browser.js",
+ "bugs": {
+ "url": "https://github.com/TooTallNate/util-deprecate/issues"
+ },
+ "bundleDependencies": false,
+ "deprecated": false,
+ "description": "The Node.js `util.deprecate()` function with browser support",
+ "homepage": "https://github.com/TooTallNate/util-deprecate",
+ "keywords": [
+ "util",
+ "deprecate",
+ "browserify",
+ "browser",
+ "node"
+ ],
+ "license": "MIT",
+ "main": "node.js",
+ "name": "util-deprecate",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/TooTallNate/util-deprecate.git"
+ },
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "version": "1.0.2"
+}
diff --git a/backend/node_modules/wide-align/LICENSE b/backend/node_modules/wide-align/LICENSE
new file mode 100755
index 0000000..f4be44d
--- /dev/null
+++ b/backend/node_modules/wide-align/LICENSE
@@ -0,0 +1,14 @@
+Copyright (c) 2015, Rebecca Turner <me@re-becca.org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
diff --git a/backend/node_modules/wide-align/README.md b/backend/node_modules/wide-align/README.md
new file mode 100755
index 0000000..32f1be0
--- /dev/null
+++ b/backend/node_modules/wide-align/README.md
@@ -0,0 +1,47 @@
+wide-align
+----------
+
+A wide-character aware text alignment function for use in terminals / on the
+console.
+
+### Usage
+
+```
+var align = require('wide-align')
+
+// Note that if you view this on a unicode console, all of the slashes are
+// aligned. This is because on a console, all narrow characters are
+// an en wide and all wide characters are an em. In browsers, this isn't
+// held to and wide characters like "å¤" can be less than two narrow
+// characters even with a fixed width font.
+
+console.log(align.center('abc', 10)) // ' abc '
+console.log(align.center('å¤å¤å¤', 10)) // ' å¤å¤å¤ '
+console.log(align.left('abc', 10)) // 'abc '
+console.log(align.left('å¤å¤å¤', 10)) // 'å¤å¤å¤ '
+console.log(align.right('abc', 10)) // ' abc'
+console.log(align.right('å¤å¤å¤', 10)) // ' å¤å¤å¤'
+```
+
+### Functions
+
+#### `align.center(str, length)` → `str`
+
+Returns *str* with spaces added to both sides such that that it is *length*
+chars long and centered in the spaces.
+
+#### `align.left(str, length)` → `str`
+
+Returns *str* with spaces to the right such that it is *length* chars long.
+
+### `align.right(str, length)` → `str`
+
+Returns *str* with spaces to the left such that it is *length* chars long.
+
+### Origins
+
+These functions were originally taken from
+[cliui](https://npmjs.com/package/cliui). Changes include switching to the
+MUCH faster pad generation function from
+[lodash](https://npmjs.com/package/lodash), making center alignment pad
+both sides and adding left alignment.
diff --git a/backend/node_modules/wide-align/align.js b/backend/node_modules/wide-align/align.js
new file mode 100755
index 0000000..4f94ca4
--- /dev/null
+++ b/backend/node_modules/wide-align/align.js
@@ -0,0 +1,65 @@
+'use strict'
+var stringWidth = require('string-width')
+
+exports.center = alignCenter
+exports.left = alignLeft
+exports.right = alignRight
+
+// lodash's way of generating pad characters.
+
+function createPadding (width) {
+ var result = ''
+ var string = ' '
+ var n = width
+ do {
+ if (n % 2) {
+ result += string;
+ }
+ n = Math.floor(n / 2);
+ string += string;
+ } while (n);
+
+ return result;
+}
+
+function alignLeft (str, width) {
+ var trimmed = str.trimRight()
+ if (trimmed.length === 0 && str.length >= width) return str
+ var padding = ''
+ var strWidth = stringWidth(trimmed)
+
+ if (strWidth < width) {
+ padding = createPadding(width - strWidth)
+ }
+
+ return trimmed + padding
+}
+
+function alignRight (str, width) {
+ var trimmed = str.trimLeft()
+ if (trimmed.length === 0 && str.length >= width) return str
+ var padding = ''
+ var strWidth = stringWidth(trimmed)
+
+ if (strWidth < width) {
+ padding = createPadding(width - strWidth)
+ }
+
+ return padding + trimmed
+}
+
+function alignCenter (str, width) {
+ var trimmed = str.trim()
+ if (trimmed.length === 0 && str.length >= width) return str
+ var padLeft = ''
+ var padRight = ''
+ var strWidth = stringWidth(trimmed)
+
+ if (strWidth < width) {
+ var padLeftBy = parseInt((width - strWidth) / 2, 10)
+ padLeft = createPadding(padLeftBy)
+ padRight = createPadding(width - (strWidth + padLeftBy))
+ }
+
+ return padLeft + trimmed + padRight
+}
diff --git a/backend/node_modules/wide-align/package.json b/backend/node_modules/wide-align/package.json
new file mode 100755
index 0000000..839e622
--- /dev/null
+++ b/backend/node_modules/wide-align/package.json
@@ -0,0 +1,66 @@
+{
+ "//": "But not version 5 of string-width, as that's ESM only",
+ "_from": "wide-align@^1.1.2",
+ "_id": "wide-align@1.1.5",
+ "_inBundle": false,
+ "_integrity": "sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==",
+ "_location": "/wide-align",
+ "_phantomChildren": {},
+ "_requested": {
+ "type": "range",
+ "registry": true,
+ "raw": "wide-align@^1.1.2",
+ "name": "wide-align",
+ "escapedName": "wide-align",
+ "rawSpec": "^1.1.2",
+ "saveSpec": null,
+ "fetchSpec": "^1.1.2"
+ },
+ "_requiredBy": [
+ "/gauge"
+ ],
+ "_resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.5.tgz",
+ "_shasum": "df1d4c206854369ecf3c9a4898f1b23fbd9d15d3",
+ "_spec": "wide-align@^1.1.2",
+ "_where": "/home/ric/Università /Mobile computing/ForPhysio_try/backend/node_modules/gauge",
+ "author": {
+ "name": "Rebecca Turner",
+ "email": "me@re-becca.org",
+ "url": "http://re-becca.org/"
+ },
+ "bugs": {
+ "url": "https://github.com/iarna/wide-align/issues"
+ },
+ "bundleDependencies": false,
+ "dependencies": {
+ "string-width": "^1.0.2 || 2 || 3 || 4"
+ },
+ "deprecated": false,
+ "description": "A wide-character aware text alignment function for use on the console or with fixed width fonts.",
+ "devDependencies": {
+ "tap": "*"
+ },
+ "files": [
+ "align.js"
+ ],
+ "homepage": "https://github.com/iarna/wide-align#readme",
+ "keywords": [
+ "wide",
+ "double",
+ "unicode",
+ "cjkv",
+ "pad",
+ "align"
+ ],
+ "license": "ISC",
+ "main": "align.js",
+ "name": "wide-align",
+ "repository": {
+ "type": "git",
+ "url": "git+https://github.com/iarna/wide-align.git"
+ },
+ "scripts": {
+ "test": "tap --coverage test/*.js"
+ },
+ "version": "1.1.5"
+}
diff --git a/backend/package-lock.json b/backend/package-lock.json
index 5756cd6..27abf1e 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -4,6 +4,40 @@
"lockfileVersion": 1,
"requires": true,
"dependencies": {
+ "@mapbox/node-pre-gyp": {
+ "version": "1.0.7",
+ "resolved": "https://registry.npmjs.org/@mapbox/node-pre-gyp/-/node-pre-gyp-1.0.7.tgz",
+ "integrity": "sha512-PplSvl4pJ5N3BkVjAdDzpPhVUPdC73JgttkR+LnBx2OORC1GCQsBjUeEuipf9uOaAM1SbxcdZFfR3KDTKm2S0A==",
+ "requires": {
+ "detect-libc": "^1.0.3",
+ "https-proxy-agent": "^5.0.0",
+ "make-dir": "^3.1.0",
+ "node-fetch": "^2.6.5",
+ "nopt": "^5.0.0",
+ "npmlog": "^6.0.0",
+ "rimraf": "^3.0.2",
+ "semver": "^7.3.5",
+ "tar": "^6.1.11"
+ },
+ "dependencies": {
+ "nopt": {
+ "version": "5.0.0",
+ "resolved": "https://registry.npmjs.org/nopt/-/nopt-5.0.0.tgz",
+ "integrity": "sha512-Tbj67rffqceeLpcRXrT7vKAN8CwfPeIBgM7E6iBkmKLV7bEMwpGgYLGv0jACUsECaa/vuxP0IjEont6umdMgtQ==",
+ "requires": {
+ "abbrev": "1"
+ }
+ },
+ "semver": {
+ "version": "7.3.5",
+ "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
+ "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==",
+ "requires": {
+ "lru-cache": "^6.0.0"
+ }
+ }
+ }
+ },
"@sindresorhus/is": {
"version": "0.14.0",
"resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-0.14.0.tgz",
@@ -65,6 +99,29 @@
"negotiator": "0.6.2"
}
},
+ "agent-base": {
+ "version": "6.0.2",
+ "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
+ "integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
+ "requires": {
+ "debug": "4"
+ },
+ "dependencies": {
+ "debug": {
+ "version": "4.3.3",
+ "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.3.tgz",
+ "integrity": "sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==",
+ "requires": {
+ "ms": "2.1.2"
+ }
+ },
+ "ms": {
+ "version": "2.1.2",
+ "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+ "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+ }
+ }
+ },
"ansi-align": {
"version": "3.0.1",
"resolved": "https://registry.npmjs.org/ansi-align/-/ansi-align-3.0.1.tgz",
@@ -95,6 +152,20 @@
"picomatch": "^2.0.4"
}
},
+ "aproba": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/aproba/-/aproba-2.0.0.tgz",
+ "integrity": "sha512-lYe4Gx7QT+MKGbDsA+Z+he/Wtef0BiwDOlK/XkBrdfsh9J/jPPXbX0tE9x9cl27Tmu5gg3QUbUrQYa/y+KOHPQ=="
+ },
+ "are-we-there-yet": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-2.0.0.tgz",
+ "integrity": "sha512-Ci/qENmwHnsYo9xKIcUJN5LeDKdJ6R1Z1j9V/J5wyq8nh/mYPEpIKJbBZXtZjG04HiK7zV/p6Vs9952MrMeUIw==",
+ "requires": {
+ "delegates": "^1.0.0",
+ "readable-stream": "^3.6.0"
+ }
+ },
"array-flatten": {
"version": "1.1.1",
"resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
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},
+ "bcrypt": {
+ "version": "5.0.1",
+ "resolved": "https://registry.npmjs.org/bcrypt/-/bcrypt-5.0.1.tgz",
+ "integrity": "sha512-9BTgmrhZM2t1bNuDtrtIMVSmmxZBrJ71n8Wg+YgdjHuIWYF7SjjmCPZFB+/5i/o/PIeRpwVJR3P+NrpIItUjqw==",
+ "requires": {
+ "@mapbox/node-pre-gyp": "^1.0.0",
+ "node-addon-api": "^3.1.0"
+ }
+ },
"binary-extensions": {
"version": "2.2.0",
"resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
@@ -269,6 +349,11 @@
"readdirp": "~3.6.0"
}
},
+ "chownr": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/chownr/-/chownr-2.0.0.tgz",
+ "integrity": "sha512-bIomtDF5KGpdogkLd9VspvFzk9KfpyyGlS8YFVZl7TGPBHL5snIOnxeshwVgPteQ9b4Eydl+pVbIyE1DcvCWgQ=="
+ },
"ci-info": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/ci-info/-/ci-info-2.0.0.tgz",
@@ -300,6 +385,11 @@
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},
+ "color-support": {
+ "version": "1.1.3",
+ "resolved": "https://registry.npmjs.org/color-support/-/color-support-1.1.3.tgz",
+ "integrity": "sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg=="
+ },
"component-emitter": {
"version": "1.3.0",
"resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.0.tgz",
@@ -323,6 +413,11 @@
"xdg-basedir": "^4.0.0"
}
},
+ "console-control-strings": {
+ "version": "1.1.0",
+ "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
+ "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4="
+ },
"content-disposition": {
"version": "0.5.3",
"resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.3.tgz",
@@ -386,6 +481,11 @@
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},
+ "delegates": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
+ "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o="
+ },
"denque": {
"version": "2.0.1",
"resolved": "https://registry.npmjs.org/denque/-/denque-2.0.1.tgz",
@@ -401,6 +501,11 @@
"resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
"integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
},
+ "detect-libc": {
+ "version": "1.0.3",
+ "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-1.0.3.tgz",
+ "integrity": "sha1-+hN8S9aY7fVc1c0CrFWfkaTEups="
+ },
"dot-prop": {
"version": "5.3.0",
"resolved": "https://registry.npmjs.org/dot-prop/-/dot-prop-5.3.0.tgz",
@@ -566,12 +671,41 @@
"resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
"integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
},
+ "fs-minipass": {
+ "version": "2.1.0",
+ "resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-2.1.0.tgz",
+ "integrity": "sha512-V/JgOLFCS+R6Vcq0slCuaeWEdNC3ouDlJMNIsacH2VtALiu9mV4LPrHc5cDl8k5aw6J8jwgWWpiTo5RYhmIzvg==",
+ "requires": {
+ "minipass": "^3.0.0"
+ }
+ },
+ "fs.realpath": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
+ "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
+ },
"fsevents": {
"version": "2.3.2",
"resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
"integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
"optional": true
},
+ "gauge": {
+ "version": "4.0.0",
+ "resolved": "https://registry.npmjs.org/gauge/-/gauge-4.0.0.tgz",
+ "integrity": "sha512-F8sU45yQpjQjxKkm1UOAhf0U/O0aFt//Fl7hsrNVto+patMHjs7dPI9mFOGUKbhrgKm0S3EjW3scMFuQmWSROw==",
+ "requires": {
+ "ansi-regex": "^5.0.1",
+ "aproba": "^1.0.3 || ^2.0.0",
+ "color-support": "^1.1.2",
+ "console-control-strings": "^1.0.0",
+ "has-unicode": "^2.0.1",
+ "signal-exit": "^3.0.0",
+ "string-width": "^4.2.3",
+ "strip-ansi": "^6.0.1",
+ "wide-align": "^1.1.2"
+ }
+ },
"get-stream": {
"version": "4.1.0",
"resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
@@ -580,6 +714,19 @@
"pump": "^3.0.0"
}
},
+ "glob": {
+ "version": "7.2.0",
+ "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.0.tgz",
+ "integrity": "sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==",
+ "requires": {
+ "fs.realpath": "^1.0.0",
+ "inflight": "^1.0.4",
+ "inherits": "2",
+ "minimatch": "^3.0.4",
+ "once": "^1.3.0",
+ "path-is-absolute": "^1.0.0"
+ }
+ },
"glob-parent": {
"version": "5.1.2",
"resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
@@ -624,6 +771,11 @@
"resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
"integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0="
},
+ "has-unicode": {
+ "version": "2.0.1",
+ "resolved": "https://registry.npmjs.org/has-unicode/-/has-unicode-2.0.1.tgz",
+ "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk="
+ },
"has-yarn": {
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"resolved": "https://registry.npmjs.org/has-yarn/-/has-yarn-2.1.0.tgz",
@@ -646,6 +798,30 @@
"toidentifier": "1.0.0"
}
},
+ "https-proxy-agent": {
+ "version": "5.0.0",
+ "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-5.0.0.tgz",
+ "integrity": "sha512-EkYm5BcKUGiduxzSt3Eppko+PiNWNEpa4ySk9vTC6wDsQJW9rHSa+UhGNJoRYp7bz6Ht1eaRIa6QaJqO5rCFbA==",
+ "requires": {
+ "agent-base": "6",
+ "debug": "4"
+ },
+ "dependencies": {
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+ "version": "4.3.3",
+ "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.3.tgz",
+ "integrity": "sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==",
+ "requires": {
+ "ms": "2.1.2"
+ }
+ },
+ "ms": {
+ "version": "2.1.2",
+ "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+ "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+ }
+ }
+ },
"iconv-lite": {
"version": "0.4.24",
"resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
@@ -674,6 +850,15 @@
"resolved": "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz",
"integrity": "sha1-khi5srkoojixPcT7a21XbyMUU+o="
},
+ "inflight": {
+ "version": "1.0.6",
+ "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
+ "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
+ "requires": {
+ "once": "^1.3.0",
+ "wrappy": "1"
+ }
+ },
"inherits": {
"version": "2.0.3",
"resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
@@ -873,6 +1058,28 @@
"resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
"integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
},
+ "minipass": {
+ "version": "3.1.5",
+ "resolved": "https://registry.npmjs.org/minipass/-/minipass-3.1.5.tgz",
+ "integrity": "sha512-+8NzxD82XQoNKNrl1d/FSi+X8wAEWR+sbYAfIvub4Nz0d22plFG72CEVVaufV8PNf4qSslFTD8VMOxNVhHCjTw==",
+ "requires": {
+ "yallist": "^4.0.0"
+ }
+ },
+ "minizlib": {
+ "version": "2.1.2",
+ "resolved": "https://registry.npmjs.org/minizlib/-/minizlib-2.1.2.tgz",
+ "integrity": "sha512-bAxsR8BVfj60DWXHE3u30oHzfl4G7khkSuPW+qvpd7jFRHm7dLxOjUk1EHACJ/hxLY8phGJ0YhYHZo7jil7Qdg==",
+ "requires": {
+ "minipass": "^3.0.0",
+ "yallist": "^4.0.0"
+ }
+ },
+ "mkdirp": {
+ "version": "1.0.4",
+ "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
+ "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw=="
+ },
"moment": {
"version": "2.29.1",
"resolved": "https://registry.npmjs.org/moment/-/moment-2.29.1.tgz",
@@ -961,6 +1168,40 @@
"resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
"integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw=="
},
+ "node-addon-api": {
+ "version": "3.2.1",
+ "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-3.2.1.tgz",
+ "integrity": "sha512-mmcei9JghVNDYydghQmeDX8KoAm0FAiYyIcUt/N4nhyAipB17pllZQDOJD2fotxABnt4Mdz+dKTO7eftLg4d0A=="
+ },
+ "node-fetch": {
+ "version": "2.6.6",
+ "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.6.tgz",
+ "integrity": "sha512-Z8/6vRlTUChSdIgMa51jxQ4lrw/Jy5SOW10ObaA47/RElsAN2c5Pn8bTgFGWn/ibwzXTE8qwr1Yzx28vsecXEA==",
+ "requires": {
+ "whatwg-url": "^5.0.0"
+ },
+ "dependencies": {
+ "tr46": {
+ "version": "0.0.3",
+ "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+ "integrity": "sha1-gYT9NH2snNwYWZLzpmIuFLnZq2o="
+ },
+ "webidl-conversions": {
+ "version": "3.0.1",
+ "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+ "integrity": "sha1-JFNCdeKnvGvnvIZhHMFq4KVlSHE="
+ },
+ "whatwg-url": {
+ "version": "5.0.0",
+ "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+ "integrity": "sha1-lmRU6HZUYuN2RNNib2dCzotwll0=",
+ "requires": {
+ "tr46": "~0.0.3",
+ "webidl-conversions": "^3.0.0"
+ }
+ }
+ }
+ },
"nodemon": {
"version": "2.0.15",
"resolved": "https://registry.npmjs.org/nodemon/-/nodemon-2.0.15.tgz",
@@ -1011,6 +1252,17 @@
"resolved": "https://registry.npmjs.org/normalize-url/-/normalize-url-4.5.1.tgz",
"integrity": "sha512-9UZCFRHQdNrfTpGg8+1INIg93B6zE0aXMVFkw1WFwvO4SlZywU6aLg5Of0Ap/PgcbSw4LNxvMWXMeugwMCX0AA=="
},
+ "npmlog": {
+ "version": "6.0.0",
+ "resolved": "https://registry.npmjs.org/npmlog/-/npmlog-6.0.0.tgz",
+ "integrity": "sha512-03ppFRGlsyUaQFbGC2C8QWJN/C/K7PsfyD9aQdhVKAQIH4sQBc8WASqFBP7O+Ut4d2oo5LoeoboB3cGdBZSp6Q==",
+ "requires": {
+ "are-we-there-yet": "^2.0.0",
+ "console-control-strings": "^1.1.0",
+ "gauge": "^4.0.0",
+ "set-blocking": "^2.0.0"
+ }
+ },
"object-assign": {
"version": "4.1.1",
"resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
@@ -1060,6 +1312,11 @@
"resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
"integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
},
+ "path-is-absolute": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
+ "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
+ },
"path-to-regexp": {
"version": "0.1.7",
"resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
@@ -1150,6 +1407,16 @@
}
}
},
+ "readable-stream": {
+ "version": "3.6.0",
+ "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+ "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+ "requires": {
+ "inherits": "^2.0.3",
+ "string_decoder": "^1.1.1",
+ "util-deprecate": "^1.0.1"
+ }
+ },
"readdirp": {
"version": "3.6.0",
"resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.6.0.tgz",
@@ -1187,6 +1454,14 @@
"lowercase-keys": "^1.0.0"
}
},
+ "rimraf": {
+ "version": "3.0.2",
+ "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
+ "integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
+ "requires": {
+ "glob": "^7.1.3"
+ }
+ },
"safe-buffer": {
"version": "5.1.2",
"resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
@@ -1264,6 +1539,11 @@
"send": "0.17.1"
}
},
+ "set-blocking": {
+ "version": "2.0.0",
+ "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
+ "integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc="
+ },
"setprototypeof": {
"version": "1.1.1",
"resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
@@ -1366,6 +1646,21 @@
"strip-ansi": "^6.0.1"
}
},
+ "string_decoder": {
+ "version": "1.3.0",
+ "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+ "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+ "requires": {
+ "safe-buffer": "~5.2.0"
+ },
+ "dependencies": {
+ "safe-buffer": {
+ "version": "5.2.1",
+ "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+ "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+ }
+ }
+ },
"strip-ansi": {
"version": "6.0.1",
"resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
@@ -1387,6 +1682,19 @@
"has-flag": "^3.0.0"
}
},
+ "tar": {
+ "version": "6.1.11",
+ "resolved": "https://registry.npmjs.org/tar/-/tar-6.1.11.tgz",
+ "integrity": "sha512-an/KZQzQUkZCkuoAA64hM92X0Urb6VpRhAFllDzz44U2mcD5scmT3zBc4VgVpkugF580+DQn8eAFSyoQt0tznA==",
+ "requires": {
+ "chownr": "^2.0.0",
+ "fs-minipass": "^2.0.0",
+ "minipass": "^3.0.0",
+ "minizlib": "^2.1.1",
+ "mkdirp": "^1.0.3",
+ "yallist": "^4.0.0"
+ }
+ },
"to-readable-stream": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/to-readable-stream/-/to-readable-stream-1.0.0.tgz",
@@ -1500,6 +1808,11 @@
"prepend-http": "^2.0.0"
}
},
+ "util-deprecate": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+ "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
+ },
"utils-merge": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
@@ -1524,6 +1837,14 @@
"webidl-conversions": "^7.0.0"
}
},
+ "wide-align": {
+ "version": "1.1.5",
+ "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.5.tgz",
+ "integrity": "sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==",
+ "requires": {
+ "string-width": "^1.0.2 || 2 || 3 || 4"
+ }
+ },
"widest-line": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/widest-line/-/widest-line-3.1.0.tgz",
diff --git a/backend/package.json b/backend/package.json
index 6212d6a..2ab9a42 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -10,6 +10,7 @@
"author": "",
"license": "ISC",
"dependencies": {
+ "bcrypt": "^5.0.1",
"express": "^4.17.1",
"moment": "^2.29.1",
"mongoose": "^6.0.13",
diff --git a/backend/routes/authRoutes.js b/backend/routes/authRoutes.js
new file mode 100644
index 0000000..1f65400
--- /dev/null
+++ b/backend/routes/authRoutes.js
@@ -0,0 +1,54 @@
+const express = require('express');
+const bcrypt = require('bcrypt');
+const mongoose = require('mongoose');
+const router = express.Router();
+const userFromDb = require('../models/userModel');
+
+//register post
+router.post('/signup', (req, res)=>{
+ console.log(req.body);
+
+ const username = req.body.username;
+ const password = req.body.password;
+
+ userFromDb.findOne({'username':username}, function(err, result){
+ if(err){ console.log("Error with the database");};
+
+ if(result!=null){
+ res.send('Username already used');
+ }
+ else{
+ const user = new userFromDb({username:username, password:password});
+ user.save();
+ res.send('User registered');
+ }
+ })
+})
+
+//login post
+router.post('/signin', (req, res)=>{
+ console.log(req.body);
+
+ const username = req.body.username;
+ const password = req.body.password;
+ userFromDb.findOne({'username':username}, function(err, result){
+ if(err){ console.log("Error with the database");};
+
+ if(result==null){
+ res.send('Invalid username or password');
+ }
+ else{
+ result.comparePassword(password, function(err, isMatch) {
+ if (err) throw err;
+ //console.log(password, isMatch);
+ if (isMatch){
+ res.send('Login successful');
+ }else{
+ alert("Invalid username e/o password");
+ }
+ });
+ }
+ })
+})
+
+module.exports = router
\ No newline at end of file
diff --git a/backend/server.js b/backend/server.js
index 87cc58f..13792cf 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -4,6 +4,7 @@ const http = require('http');
const moment = require('moment');
const socketio = require('socket.io');
const mongoose = require('mongoose');
+const userFromDb = require('./models/userModel');
//database connection
mongoose.connect('mongodb+srv://ric:mobilecomputing2122@cluster0.finip.mongodb.net/test?retryWrites=true&w=majority', {
@@ -14,11 +15,16 @@ mongoose.connect('mongodb+srv://ric:mobilecomputing2122@cluster0.finip.mongodb.n
console.log(err);
})
+const authRoutes = require('./routes/authRoutes');
+
const app = express();
const server = http.createServer(app);
const io = socketio(server);
app.use(express.static(path.join(__dirname, 'public')));
+app.use(express.urlencoded({extended : true}));
+app.use(express.json());
+app.use(authRoutes);
io.on('connection', socket =>{
console.log('socket connected');
--
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