Added UUID lib

src/public/vendor/uuid.js

@@ -0,0 +1,272 @@
+//     uuid.js
+//
+//     Copyright (c) 2010-2012 Robert Kieffer
+//     MIT License - http://opensource.org/licenses/mit-license.php
+
+/*global window, require, define */
+(function(_window) {
+  'use strict';
+
+  // Unique ID creation requires a high quality random # generator.  We feature
+  // detect to determine the best RNG source, normalizing to a function that
+  // returns 128-bits of randomness, since that's what's usually required
+  var _rng, _mathRNG, _nodeRNG, _whatwgRNG, _previousRoot;
+
+  function setupBrowser() {
+    // Allow for MSIE11 msCrypto
+    var _crypto = _window.crypto || _window.msCrypto;
+
+    if (!_rng && _crypto && _crypto.getRandomValues) {
+      // WHATWG crypto-based RNG - http://wiki.whatwg.org/wiki/Crypto
+      //
+      // Moderately fast, high quality
+      try {
+        var _rnds8 = new Uint8Array(16);
+        _whatwgRNG = _rng = function whatwgRNG() {
+          _crypto.getRandomValues(_rnds8);
+          return _rnds8;
+        };
+        _rng();
+      } catch(e) {}
+    }
+
+    if (!_rng) {
+      // Math.random()-based (RNG)
+      //
+      // If all else fails, use Math.random().  It's fast, but is of unspecified
+      // quality.
+      var  _rnds = new Array(16);
+      _mathRNG = _rng = function() {
+        for (var i = 0, r; i < 16; i++) {
+          if ((i & 0x03) === 0) { r = Math.random() * 0x100000000; }
+          _rnds[i] = r >>> ((i & 0x03) << 3) & 0xff;
+        }
+
+        return _rnds;
+      };
+      if ('undefined' !== typeof console && console.warn) {
+        console.warn("[SECURITY] node-uuid: crypto not usable, falling back to insecure Math.random()");
+      }
+    }
+  }
+
+  function setupNode() {
+    // Node.js crypto-based RNG - http://nodejs.org/docs/v0.6.2/api/crypto.html
+    //
+    // Moderately fast, high quality
+    if ('function' === typeof require) {
+      try {
+        var _rb = require('crypto').randomBytes;
+        _nodeRNG = _rng = _rb && function() {return _rb(16);};
+        _rng();
+      } catch(e) {}
+    }
+  }
+
+  if (_window) {
+    setupBrowser();
+  } else {
+    setupNode();
+  }
+
+  // Buffer class to use
+  var BufferClass = ('function' === typeof Buffer) ? Buffer : Array;
+
+  // Maps for number <-> hex string conversion
+  var _byteToHex = [];
+  var _hexToByte = {};
+  for (var i = 0; i < 256; i++) {
+    _byteToHex[i] = (i + 0x100).toString(16).substr(1);
+    _hexToByte[_byteToHex[i]] = i;
+  }
+
+  // **`parse()` - Parse a UUID into it's component bytes**
+  function parse(s, buf, offset) {
+    var i = (buf && offset) || 0, ii = 0;
+
+    buf = buf || [];
+    s.toLowerCase().replace(/[0-9a-f]{2}/g, function(oct) {
+      if (ii < 16) { // Don't overflow!
+        buf[i + ii++] = _hexToByte[oct];
+      }
+    });
+
+    // Zero out remaining bytes if string was short
+    while (ii < 16) {
+      buf[i + ii++] = 0;
+    }
+
+    return buf;
+  }
+
+  // **`unparse()` - Convert UUID byte array (ala parse()) into a string**
+  function unparse(buf, offset) {
+    var i = offset || 0, bth = _byteToHex;
+    return  bth[buf[i++]] + bth[buf[i++]] +
+            bth[buf[i++]] + bth[buf[i++]] + '-' +
+            bth[buf[i++]] + bth[buf[i++]] + '-' +
+            bth[buf[i++]] + bth[buf[i++]] + '-' +
+            bth[buf[i++]] + bth[buf[i++]] + '-' +
+            bth[buf[i++]] + bth[buf[i++]] +
+            bth[buf[i++]] + bth[buf[i++]] +
+            bth[buf[i++]] + bth[buf[i++]];
+  }
+
+  // **`v1()` - Generate time-based UUID**
+  //
+  // Inspired by https://github.com/LiosK/UUID.js
+  // and http://docs.python.org/library/uuid.html
+
+  // random #'s we need to init node and clockseq
+  var _seedBytes = _rng();
+
+  // Per 4.5, create and 48-bit node id, (47 random bits + multicast bit = 1)
+  var _nodeId = [
+    _seedBytes[0] | 0x01,
+    _seedBytes[1], _seedBytes[2], _seedBytes[3], _seedBytes[4], _seedBytes[5]
+  ];
+
+  // Per 4.2.2, randomize (14 bit) clockseq
+  var _clockseq = (_seedBytes[6] << 8 | _seedBytes[7]) & 0x3fff;
+
+  // Previous uuid creation time
+  var _lastMSecs = 0, _lastNSecs = 0;
+
+  // See https://github.com/broofa/node-uuid for API details
+  function v1(options, buf, offset) {
+    var i = buf && offset || 0;
+    var b = buf || [];
+
+    options = options || {};
+
+    var clockseq = (options.clockseq != null) ? options.clockseq : _clockseq;
+
+    // UUID timestamps are 100 nano-second units since the Gregorian epoch,
+    // (1582-10-15 00:00).  JSNumbers aren't precise enough for this, so
+    // time is handled internally as 'msecs' (integer milliseconds) and 'nsecs'
+    // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00.
+    var msecs = (options.msecs != null) ? options.msecs : new Date().getTime();
+
+    // Per 4.2.1.2, use count of uuid's generated during the current clock
+    // cycle to simulate higher resolution clock
+    var nsecs = (options.nsecs != null) ? options.nsecs : _lastNSecs + 1;
+
+    // Time since last uuid creation (in msecs)
+    var dt = (msecs - _lastMSecs) + (nsecs - _lastNSecs)/10000;
+
+    // Per 4.2.1.2, Bump clockseq on clock regression
+    if (dt < 0 && options.clockseq == null) {
+      clockseq = clockseq + 1 & 0x3fff;
+    }
+
+    // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new
+    // time interval
+    if ((dt < 0 || msecs > _lastMSecs) && options.nsecs == null) {
+      nsecs = 0;
+    }
+
+    // Per 4.2.1.2 Throw error if too many uuids are requested
+    if (nsecs >= 10000) {
+      throw new Error('uuid.v1(): Can\'t create more than 10M uuids/sec');
+    }
+
+    _lastMSecs = msecs;
+    _lastNSecs = nsecs;
+    _clockseq = clockseq;
+
+    // Per 4.1.4 - Convert from unix epoch to Gregorian epoch
+    msecs += 12219292800000;
+
+    // `time_low`
+    var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;
+    b[i++] = tl >>> 24 & 0xff;
+    b[i++] = tl >>> 16 & 0xff;
+    b[i++] = tl >>> 8 & 0xff;
+    b[i++] = tl & 0xff;
+
+    // `time_mid`
+    var tmh = (msecs / 0x100000000 * 10000) & 0xfffffff;
+    b[i++] = tmh >>> 8 & 0xff;
+    b[i++] = tmh & 0xff;
+
+    // `time_high_and_version`
+    b[i++] = tmh >>> 24 & 0xf | 0x10; // include version
+    b[i++] = tmh >>> 16 & 0xff;
+
+    // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant)
+    b[i++] = clockseq >>> 8 | 0x80;
+
+    // `clock_seq_low`
+    b[i++] = clockseq & 0xff;
+
+    // `node`
+    var node = options.node || _nodeId;
+    for (var n = 0; n < 6; n++) {
+      b[i + n] = node[n];
+    }
+
+    return buf ? buf : unparse(b);
+  }
+
+  // **`v4()` - Generate random UUID**
+
+  // See https://github.com/broofa/node-uuid for API details
+  function v4(options, buf, offset) {
+    // Deprecated - 'format' argument, as supported in v1.2
+    var i = buf && offset || 0;
+
+    if (typeof(options) === 'string') {
+      buf = (options === 'binary') ? new BufferClass(16) : null;
+      options = null;
+    }
+    options = options || {};
+
+    var rnds = options.random || (options.rng || _rng)();
+
+    // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
+    rnds[6] = (rnds[6] & 0x0f) | 0x40;
+    rnds[8] = (rnds[8] & 0x3f) | 0x80;
+
+    // Copy bytes to buffer, if provided
+    if (buf) {
+      for (var ii = 0; ii < 16; ii++) {
+        buf[i + ii] = rnds[ii];
+      }
+    }
+
+    return buf || unparse(rnds);
+  }
+
+  // Export public API
+  var uuid = v4;
+  uuid.v1 = v1;
+  uuid.v4 = v4;
+  uuid.parse = parse;
+  uuid.unparse = unparse;
+  uuid.BufferClass = BufferClass;
+  uuid._rng = _rng;
+  uuid._mathRNG = _mathRNG;
+  uuid._nodeRNG = _nodeRNG;
+  uuid._whatwgRNG = _whatwgRNG;
+
+  if (('undefined' !== typeof module) && module.exports) {
+    // Publish as node.js module
+    module.exports = uuid;
+  } else if (typeof define === 'function' && define.amd) {
+    // Publish as AMD module
+    define(function() {return uuid;});
+
+
+  } else {
+    // Publish as global (in browsers)
+    _previousRoot = _window.uuid;
+
+    // **`noConflict()` - (browser only) to reset global 'uuid' var**
+    uuid.noConflict = function() {
+      _window.uuid = _previousRoot;
+      return uuid;
+    };
+
+    _window.uuid = uuid;
+  }
+})('undefined' !== typeof window ? window : null);