initial commit

node_modules/hash-base/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2016 Kirill Fomichev
+
+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.

node_modules/hash-base/README.md

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+# hash-base
+
+[![npm Package](https://img.shields.io/npm/v/hash-base.svg?style=flat-square)](https://www.npmjs.org/package/hash-base)
+[![Build Status](https://img.shields.io/travis/crypto-browserify/hash-base.svg?branch=master&style=flat-square)](https://travis-ci.org/crypto-browserify/hash-base)
+[![Dependency status](https://img.shields.io/david/crypto-browserify/hash-base.svg?style=flat-square)](https://david-dm.org/crypto-browserify/hash-base#info=dependencies)
+
+Abstract base class to inherit from if you want to create streams implementing the same API as node crypto [Hash][1] (for [Cipher][2] / [Decipher][3] check [crypto-browserify/cipher-base][4]).
+
+## Example
+
+```js
+const HashBase = require('hash-base');
+const inherits = require('inherits');
+
+// our hash function is XOR sum of all bytes
+function MyHash () {
+	HashBase.call(this, 1); // in bytes
+
+	this._sum = 0x00;
+};
+
+inherits(MyHash, HashBase)
+
+MyHash.prototype._update = function () {
+	for (let i = 0; i < this._block.length; ++i) {
+		this._sum ^= this._block[i];
+	}
+};
+
+MyHash.prototype._digest = function () {
+	return this._sum;
+};
+
+const data = Buffer.from([0x00, 0x42, 0x01]);
+const hash = new MyHash().update(data).digest();
+console.log(hash); // => 67
+```
+You also can check [source code](index.js) or [crypto-browserify/md5.js][5]
+
+## LICENSE
+
+MIT
+
+[1]: https://nodejs.org/api/crypto.html#crypto_class_hash
+[2]: https://nodejs.org/api/crypto.html#crypto_class_cipher
+[3]: https://nodejs.org/api/crypto.html#crypto_class_decipher
+[4]: https://github.com/crypto-browserify/cipher-base
+[5]: https://github.com/crypto-browserify/md5.js

node_modules/hash-base/index.js

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+'use strict'
+var Buffer = require('safe-buffer').Buffer
+var Transform = require('stream').Transform
+var inherits = require('inherits')
+
+function HashBase (blockSize) {
+  Transform.call(this)
+
+  this._block = Buffer.allocUnsafe(blockSize)
+  this._blockSize = blockSize
+  this._blockOffset = 0
+  this._length = [0, 0, 0, 0]
+
+  this._finalized = false
+}
+
+inherits(HashBase, Transform)
+
+HashBase.prototype._transform = function (chunk, encoding, callback) {
+  var error = null
+  try {
+    this.update(chunk, encoding)
+  } catch (err) {
+    error = err
+  }
+
+  callback(error)
+}
+
+HashBase.prototype._flush = function (callback) {
+  var error = null
+  try {
+    this.push(this.digest())
+  } catch (err) {
+    error = err
+  }
+
+  callback(error)
+}
+
+var useUint8Array = typeof Uint8Array !== 'undefined'
+var useArrayBuffer = typeof ArrayBuffer !== 'undefined' &&
+  typeof Uint8Array !== 'undefined' &&
+  ArrayBuffer.isView &&
+  (Buffer.prototype instanceof Uint8Array || Buffer.TYPED_ARRAY_SUPPORT)
+
+function toBuffer (data, encoding) {
+  // No need to do anything for exact instance
+  // This is only valid when safe-buffer.Buffer === buffer.Buffer, i.e. when Buffer.from/Buffer.alloc existed
+  if (data instanceof Buffer) return data
+
+  // Convert strings to Buffer
+  if (typeof data === 'string') return Buffer.from(data, encoding)
+
+  /*
+   * Wrap any TypedArray instances and DataViews
+   * Makes sense only on engines with full TypedArray support -- let Buffer detect that
+   */
+  if (useArrayBuffer && ArrayBuffer.isView(data)) {
+    if (data.byteLength === 0) return Buffer.alloc(0) // Bug in Node.js <6.3.1, which treats this as out-of-bounds
+    var res = Buffer.from(data.buffer, data.byteOffset, data.byteLength)
+    // Recheck result size, as offset/length doesn't work on Node.js <5.10
+    // We just go to Uint8Array case if this fails
+    if (res.byteLength === data.byteLength) return res
+  }
+
+  /*
+   * Uint8Array in engines where Buffer.from might not work with ArrayBuffer, just copy over
+   * Doesn't make sense with other TypedArray instances
+   */
+  if (useUint8Array && data instanceof Uint8Array) return Buffer.from(data)
+
+  /*
+   * Old Buffer polyfill on an engine that doesn't have TypedArray support
+   * Also, this is from a different Buffer polyfill implementation then we have, as instanceof check failed
+   * Convert to our current Buffer implementation
+   */
+  if (
+    Buffer.isBuffer(data) &&
+    data.constructor &&
+    typeof data.constructor.isBuffer === 'function' &&
+    data.constructor.isBuffer(data)
+  ) {
+    return Buffer.from(data)
+  }
+
+  throw new TypeError('The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView.')
+}
+
+HashBase.prototype.update = function (data, encoding) {
+  if (this._finalized) throw new Error('Digest already called')
+
+  data = toBuffer(data, encoding) // asserts correct input type
+
+  // consume data
+  var block = this._block
+  var offset = 0
+  while (this._blockOffset + data.length - offset >= this._blockSize) {
+    for (var i = this._blockOffset; i < this._blockSize;) block[i++] = data[offset++]
+    this._update()
+    this._blockOffset = 0
+  }
+  while (offset < data.length) block[this._blockOffset++] = data[offset++]
+
+  // update length
+  for (var j = 0, carry = data.length * 8; carry > 0; ++j) {
+    this._length[j] += carry
+    carry = (this._length[j] / 0x0100000000) | 0
+    if (carry > 0) this._length[j] -= 0x0100000000 * carry
+  }
+
+  return this
+}
+
+HashBase.prototype._update = function () {
+  throw new Error('_update is not implemented')
+}
+
+HashBase.prototype.digest = function (encoding) {
+  if (this._finalized) throw new Error('Digest already called')
+  this._finalized = true
+
+  var digest = this._digest()
+  if (encoding !== undefined) digest = digest.toString(encoding)
+
+  // reset state
+  this._block.fill(0)
+  this._blockOffset = 0
+  for (var i = 0; i < 4; ++i) this._length[i] = 0
+
+  return digest
+}
+
+HashBase.prototype._digest = function () {
+  throw new Error('_digest is not implemented')
+}
+
+module.exports = HashBase

node_modules/hash-base/package.json

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+{
+	"name": "hash-base",
+	"version": "3.0.5",
+	"description": "abstract base class for hash-streams",
+	"keywords": [
+		"hash",
+		"stream"
+	],
+	"homepage": "https://github.com/crypto-browserify/hash-base",
+	"bugs": {
+		"url": "https://github.com/crypto-browserify/hash-base/issues"
+	},
+	"license": "MIT",
+	"author": "Kirill Fomichev <fanatid@ya.ru> (https://github.com/fanatid)",
+	"files": [
+		"index.js"
+	],
+	"main": "index.js",
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/crypto-browserify/hash-base.git"
+	},
+	"scripts": {
+		"lint": "standard",
+		"pretest": "npm run lint",
+		"test": "npm run tests-only",
+		"tests-only": "nyc tape 'test/**/*.js'",
+		"posttest": "npx npm@'>=10.2' audit --production"
+	},
+	"dependencies": {
+		"inherits": "^2.0.4",
+		"safe-buffer": "^5.2.1"
+	},
+	"devDependencies": {
+		"nyc": "^10.3.2",
+		"standard": "^14.3.3",
+		"tape": "^5.9.0"
+	},
+	"engines": {
+		"node": ">= 0.10"
+	}
+}