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website/functions/node_modules/hash-stream-validation/crc32c.js

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+// Original author:
+// https://github.com/ashi009/node-fast-crc32c/blob/5e7f9d63cfdb3de9b6c34577466de3dfd732c25d/impls/js_crc32c.js
+
+'use strict'
+
+var kCRCTable = new Int32Array([
+  0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4,
+  0xc79a971f, 0x35f1141c, 0x26a1e7e8, 0xd4ca64eb,
+  0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989ab3b,
+  0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24,
+  0x105ec76f, 0xe235446c, 0xf165b798, 0x030e349b,
+  0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a384,
+  0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54,
+  0x5d1d08bf, 0xaf768bbc, 0xbc267848, 0x4e4dfb4b,
+  0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7d2a,
+  0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35,
+  0xaa64d611, 0x580f5512, 0x4b5fa6e6, 0xb93425e5,
+  0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb2fa,
+  0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45,
+  0xf779deae, 0x05125dad, 0x1642ae59, 0xe4292d5a,
+  0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae28a,
+  0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595,
+  0x417b1dbc, 0xb3109ebf, 0xa0406d4b, 0x522bee48,
+  0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17957,
+  0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687,
+  0x0c38d26c, 0xfe53516f, 0xed03a29b, 0x1f682198,
+  0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752927,
+  0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38,
+  0xdbfc821c, 0x2997011f, 0x3ac7f2eb, 0xc8ac71e8,
+  0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e6f7,
+  0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096,
+  0xa65c047d, 0x5437877e, 0x4767748a, 0xb50cf789,
+  0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3859,
+  0x2c855cb2, 0xdeeedfb1, 0xcdbe2c45, 0x3fd5af46,
+  0x7198540d, 0x83f3d70e, 0x90a324fa, 0x62c8a7f9,
+  0xb602c312, 0x44694011, 0x5739b3e5, 0xa55230e6,
+  0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36,
+  0x3cdb9bdd, 0xceb018de, 0xdde0eb2a, 0x2f8b6829,
+  0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c88c,
+  0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93,
+  0x082f63b7, 0xfa44e0b4, 0xe9141340, 0x1b7f9043,
+  0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce5075c,
+  0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3,
+  0x55326b08, 0xa759e80b, 0xb4091bff, 0x466298fc,
+  0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b21572c,
+  0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033,
+  0xa24bb5a6, 0x502036a5, 0x4370c551, 0xb11b4652,
+  0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d14d,
+  0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d,
+  0xef087a76, 0x1d63f975, 0x0e330a81, 0xfc588982,
+  0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa145813d,
+  0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622,
+  0x38cc2a06, 0xcaa7a905, 0xd9f75af1, 0x2b9cd9f2,
+  0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064eed,
+  0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530,
+  0x0417b1db, 0xf67c32d8, 0xe52cc12c, 0x1747422f,
+  0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048dff,
+  0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0,
+  0xd3d3e1ab, 0x21b862a8, 0x32e8915c, 0xc083125f,
+  0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198540,
+  0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90,
+  0x9e902e7b, 0x6cfbad78, 0x7fab5e8c, 0x8dc0dd8f,
+  0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605bee,
+  0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1,
+  0x69e9f0d5, 0x9b8273d6, 0x88d28022, 0x7ab90321,
+  0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd23943e,
+  0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81,
+  0x34f4f86a, 0xc69f7b69, 0xd5cf889d, 0x27a40b9e,
+  0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c44e,
+  0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351
+])
+
+module.exports = {
+  calculate: function (buf, initial) {
+    if (!Buffer.isBuffer(buf)) buf = new Buffer(buf)
+
+    var crc = (initial | 0) ^ -1
+    for (var i = 0; i < buf.length; i++)
+      crc = kCRCTable[(crc ^ buf[i]) & 0xff] ^ (crc >>> 8)
+
+    return (crc ^ -1) >>> 0
+  }
+}

website/functions/node_modules/hash-stream-validation/index.js

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+'use strict'
+
+var crc
+try {
+  crc = require('fast-crc32c')
+} catch (e) {
+  crc = require('./crc32c.js')
+}
+
+var crypto = require('crypto')
+var through = require('through2')
+
+module.exports = function (cfg) {
+  cfg = cfg || {}
+
+  var crc32c = cfg.crc32c !== false
+  var md5 = cfg.md5 !== false
+
+  var hashes = {}
+  if (md5) hashes.md5 = crypto.createHash('md5')
+
+  var onData = function (chunk, enc, done) {
+    if (crc32c) hashes.crc32c = crc.calculate(chunk, hashes.crc32c)
+    if (md5) hashes.md5.update(chunk)
+
+    done(null, chunk)
+  }
+
+  var onFlush = function (done) {
+    if (crc32c) hashes.crc32c = new Buffer([hashes.crc32c]).toString('base64')
+    if (md5) hashes.md5 = hashes.md5.digest('base64')
+
+    done()
+  }
+
+  var validationStream = through(onData, onFlush)
+
+  validationStream.test = function (algo, sum) {
+    return hashes[algo] === sum
+  }
+
+  return validationStream
+}

website/functions/node_modules/hash-stream-validation/license

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+The MIT License (MIT)
+
+Copyright (c) 2015 Stephen Sawchuk
+
+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.
+
+The MIT License (MIT)
+
+Copyright (c) 2015 Xiaoyi Shi
+
+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.

website/functions/node_modules/hash-stream-validation/package.json

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+{
+  "_from": "hash-stream-validation@^0.2.1",
+  "_id": "hash-stream-validation@0.2.1",
+  "_inBundle": false,
+  "_integrity": "sha1-7Mm5l7IYvluzEphii7gHhptz3NE=",
+  "_location": "/hash-stream-validation",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "hash-stream-validation@^0.2.1",
+    "name": "hash-stream-validation",
+    "escapedName": "hash-stream-validation",
+    "rawSpec": "^0.2.1",
+    "saveSpec": null,
+    "fetchSpec": "^0.2.1"
+  },
+  "_requiredBy": [
+    "/@google-cloud/storage"
+  ],
+  "_resolved": "https://registry.npmjs.org/hash-stream-validation/-/hash-stream-validation-0.2.1.tgz",
+  "_shasum": "ecc9b997b218be5bb31298628bb807869b73dcd1",
+  "_spec": "hash-stream-validation@^0.2.1",
+  "_where": "C:\\Users\\jlevi\\Downloads\\tr2022-strategy-master\\tr2022-strategy-master\\data analysis\\functions\\node_modules\\@google-cloud\\storage",
+  "author": {
+    "name": "Stephen Sawchuk",
+    "email": "sawchuk@gmail.com"
+  },
+  "bugs": {
+    "url": "https://github.com/stephenplusplus/hash-stream-validation/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "through2": "^2.0.0"
+  },
+  "deprecated": false,
+  "description": "Hash a stream of data, then validate",
+  "devDependencies": {
+    "fast-crc32c": "^1.0.2",
+    "mocha": "^2.2.5",
+    "standard": "^5.1.0"
+  },
+  "files": [
+    "crc32c.js",
+    "index.js"
+  ],
+  "homepage": "https://github.com/stephenplusplus/hash-stream-validation#readme",
+  "keywords": [
+    "hash",
+    "stream",
+    "algorithm",
+    "validation",
+    "crc32c",
+    "crc32",
+    "md5"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "hash-stream-validation",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/stephenplusplus/hash-stream-validation.git"
+  },
+  "scripts": {
+    "test": "mocha"
+  },
+  "standard": {
+    "global": [
+      "before",
+      "describe",
+      "it"
+    ]
+  },
+  "version": "0.2.1"
+}

website/functions/node_modules/hash-stream-validation/readme.md

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+# hash-stream-validation
+> Hash a stream of data, then validate
+
+```sh
+$ npm install --save hash-stream-validation
+```
+```js
+var hashStreamValidation = require('hash-stream-validation');
+
+var validateStream = hashStreamValidation();
+
+fs.createReadStream(filePath)
+  .pipe(validateStream)
+  .on('data', function() { /*... */ })
+  .on('end', function() {
+    validateStream.test('md5', /*checksum*/);
+  });
+```
+
+## Do this for faster crc32c computation
+
+If the speeds are too slow for your use, this module will `try` to require [`fast-crc32c`](http://gitnpm.com/fast-crc32c). We chose not to make it an `optionalDependency` because npm's scary warning output confuses users into thinking their hard drive was just erased.
+
+
+```js
+$ npm install --save fast-crc32c
+```
+
+## Use Case
+
+After a successful upload to a Google Cloud Storage bucket, the API will respond with the hash of data it has received. During our upload, we can run the data through this module, then confirm after the upload if we both arrived at the same results. If not, we know something went wrong during the transmission.
+
+## API
+
+### validateStream = hashStreamValidation([opts])
+
+#### opts.crc32c
+- Type: `Boolean`
+- Default: `true`
+
+Enable crc32c hashing via [sse4_crc32](https://gitnpm.com/sse4_crc32).*
+
+* Note: Any issues installing this module on your system should be opened at their repository.
+
+#### opts.md5
+- Type: `Boolean`
+- Default: `true`
+
+Enable MD5 hashing.
+
+### validateStream.test(algo, sum)
+
+#### algo
+- Type: `String`
+
+The alogrithm to test the sum against ('crc32c' or 'md5').
+
+#### sum
+- Type: `String`
+
+The sum to validate.