v3.js

/**
 * Convert array of 16 byte values to UUID string format of the form:
 * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
 */
var byteToHex = [];
for (var i = 0; i < 256; ++i) {
  byteToHex[i] = (i + 0x100).toString(16).substr(1);
}

function bytesToUuid(buf, offset) {
  var i = offset || 0;
  var bth = byteToHex;
  // join used to fix memory issue caused by concatenation: https://bugs.chromium.org/p/v8/issues/detail?id=3175#c4
  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++]]]).join('');
}

var bytesToUuid_1 = bytesToUuid;

function uuidToBytes(uuid) {
  // Note: We assume we're being passed a valid uuid string
  var bytes = [];
  uuid.replace(/[a-fA-F0-9]{2}/g, function(hex) {
    bytes.push(parseInt(hex, 16));
  });

  return bytes;
}

function stringToBytes(str) {
  str = unescape(encodeURIComponent(str)); // UTF8 escape
  var bytes = new Array(str.length);
  for (var i = 0; i < str.length; i++) {
    bytes[i] = str.charCodeAt(i);
  }
  return bytes;
}

var v35 = function(name, version, hashfunc) {
  var generateUUID = function(value, namespace, buf, offset) {
    var off = buf && offset || 0;

    if (typeof(value) == 'string') value = stringToBytes(value);
    if (typeof(namespace) == 'string') namespace = uuidToBytes(namespace);

    if (!Array.isArray(value)) throw TypeError('value must be an array of bytes');
    if (!Array.isArray(namespace) || namespace.length !== 16) throw TypeError('namespace must be uuid string or an Array of 16 byte values');

    // Per 4.3
    var bytes = hashfunc(namespace.concat(value));
    bytes[6] = (bytes[6] & 0x0f) | version;
    bytes[8] = (bytes[8] & 0x3f) | 0x80;

    if (buf) {
      for (var idx = 0; idx < 16; ++idx) {
        buf[off+idx] = bytes[idx];
      }
    }

    return buf || bytesToUuid_1(bytes);
  };

  // Function#name is not settable on some platforms (#270)
  try {
    generateUUID.name = name;
  } catch (err) {
  }

  // Pre-defined namespaces, per Appendix C
  generateUUID.DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
  generateUUID.URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';

  return generateUUID;
};

/*
 * Browser-compatible JavaScript MD5
 *
 * Modification of JavaScript MD5
 * https://github.com/blueimp/JavaScript-MD5
 *
 * Copyright 2011, Sebastian Tschan
 * https://blueimp.net
 *
 * Licensed under the MIT license:
 * https://opensource.org/licenses/MIT
 *
 * Based on
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for more info.
 */

function md5(bytes) {
  if (typeof(bytes) == 'string') {
    var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape
    bytes = new Array(msg.length);
    for (var i = 0; i < msg.length; i++) bytes[i] = msg.charCodeAt(i);
  }

  return md5ToHexEncodedArray(
    wordsToMd5(
      bytesToWords(bytes)
      , bytes.length * 8)
  );
}


/*
* Convert an array of little-endian words to an array of bytes
*/
function md5ToHexEncodedArray(input) {
  var i;
  var x;
  var output = [];
  var length32 = input.length * 32;
  var hexTab = '0123456789abcdef';
  var hex;

  for (i = 0; i < length32; i += 8) {
    x = (input[i >> 5] >>> (i % 32)) & 0xFF;

    hex = parseInt(hexTab.charAt((x >>> 4) & 0x0F) + hexTab.charAt(x & 0x0F), 16);

    output.push(hex);
  }
  return output;
}

/*
* Calculate the MD5 of an array of little-endian words, and a bit length.
*/
function wordsToMd5(x, len) {
  /* append padding */
  x[len >> 5] |= 0x80 << (len % 32);
  x[(((len + 64) >>> 9) << 4) + 14] = len;

  var i;
  var olda;
  var oldb;
  var oldc;
  var oldd;
  var a = 1732584193;
  var b = -271733879;
  var c = -1732584194;

  var d = 271733878;

  for (i = 0; i < x.length; i += 16) {
    olda = a;
    oldb = b;
    oldc = c;
    oldd = d;

    a = md5ff(a, b, c, d, x[i], 7, -680876936);
    d = md5ff(d, a, b, c, x[i + 1], 12, -389564586);
    c = md5ff(c, d, a, b, x[i + 2], 17, 606105819);
    b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
    a = md5ff(a, b, c, d, x[i + 4], 7, -176418897);
    d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
    c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
    b = md5ff(b, c, d, a, x[i + 7], 22, -45705983);
    a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
    d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
    c = md5ff(c, d, a, b, x[i + 10], 17, -42063);
    b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
    a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
    d = md5ff(d, a, b, c, x[i + 13], 12, -40341101);
    c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
    b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329);

    a = md5gg(a, b, c, d, x[i + 1], 5, -165796510);
    d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
    c = md5gg(c, d, a, b, x[i + 11], 14, 643717713);
    b = md5gg(b, c, d, a, x[i], 20, -373897302);
    a = md5gg(a, b, c, d, x[i + 5], 5, -701558691);
    d = md5gg(d, a, b, c, x[i + 10], 9, 38016083);
    c = md5gg(c, d, a, b, x[i + 15], 14, -660478335);
    b = md5gg(b, c, d, a, x[i + 4], 20, -405537848);
    a = md5gg(a, b, c, d, x[i + 9], 5, 568446438);
    d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
    c = md5gg(c, d, a, b, x[i + 3], 14, -187363961);
    b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
    a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
    d = md5gg(d, a, b, c, x[i + 2], 9, -51403784);
    c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
    b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734);

    a = md5hh(a, b, c, d, x[i + 5], 4, -378558);
    d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
    c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
    b = md5hh(b, c, d, a, x[i + 14], 23, -35309556);
    a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
    d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
    c = md5hh(c, d, a, b, x[i + 7], 16, -155497632);
    b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
    a = md5hh(a, b, c, d, x[i + 13], 4, 681279174);
    d = md5hh(d, a, b, c, x[i], 11, -358537222);
    c = md5hh(c, d, a, b, x[i + 3], 16, -722521979);
    b = md5hh(b, c, d, a, x[i + 6], 23, 76029189);
    a = md5hh(a, b, c, d, x[i + 9], 4, -640364487);
    d = md5hh(d, a, b, c, x[i + 12], 11, -421815835);
    c = md5hh(c, d, a, b, x[i + 15], 16, 530742520);
    b = md5hh(b, c, d, a, x[i + 2], 23, -995338651);

    a = md5ii(a, b, c, d, x[i], 6, -198630844);
    d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
    c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
    b = md5ii(b, c, d, a, x[i + 5], 21, -57434055);
    a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
    d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
    c = md5ii(c, d, a, b, x[i + 10], 15, -1051523);
    b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
    a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
    d = md5ii(d, a, b, c, x[i + 15], 10, -30611744);
    c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
    b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
    a = md5ii(a, b, c, d, x[i + 4], 6, -145523070);
    d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
    c = md5ii(c, d, a, b, x[i + 2], 15, 718787259);
    b = md5ii(b, c, d, a, x[i + 9], 21, -343485551);

    a = safeAdd(a, olda);
    b = safeAdd(b, oldb);
    c = safeAdd(c, oldc);
    d = safeAdd(d, oldd);
  }
  return [a, b, c, d];
}

/*
* Convert an array bytes to an array of little-endian words
* Characters >255 have their high-byte silently ignored.
*/
function bytesToWords(input) {
  var i;
  var output = [];
  output[(input.length >> 2) - 1] = undefined;
  for (i = 0; i < output.length; i += 1) {
    output[i] = 0;
  }
  var length8 = input.length * 8;
  for (i = 0; i < length8; i += 8) {
    output[i >> 5] |= (input[(i / 8)] & 0xFF) << (i % 32);
  }

  return output;
}

/*
* Add integers, wrapping at 2^32. This uses 16-bit operations internally
* to work around bugs in some JS interpreters.
*/
function safeAdd(x, y) {
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
}

/*
* Bitwise rotate a 32-bit number to the left.
*/
function bitRotateLeft(num, cnt) {
  return (num << cnt) | (num >>> (32 - cnt));
}

/*
* These functions implement the four basic operations the algorithm uses.
*/
function md5cmn(q, a, b, x, s, t) {
  return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b);
}
function md5ff(a, b, c, d, x, s, t) {
  return md5cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5gg(a, b, c, d, x, s, t) {
  return md5cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5hh(a, b, c, d, x, s, t) {
  return md5cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5ii(a, b, c, d, x, s, t) {
  return md5cmn(c ^ (b | (~d)), a, b, x, s, t);
}

var md5Browser = md5;

var v3 = v35('v3', 0x30, md5Browser);
var v3_1 = v3.uuidv3;

export default v3;
export { v3_1 as uuidv3 };