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+// https://raw.githubusercontent.com/satazor/SparkMD5/master/spark-md5.js
+/*jshint bitwise:false*/
+/*global unescape*/
+
+(function (factory) {
+ if (typeof exports === 'object') {
+ // Node/CommonJS
+ module.exports = factory();
+ } else if (typeof define === 'function' && define.amd) {
+ // AMD
+ define(factory);
+ } else {
+ // Browser globals (with support for web workers)
+ var glob;
+ try {
+ glob = window;
+ } catch (e) {
+ glob = self;
+ }
+
+ glob.SparkMD5 = factory();
+ }
+}(function (undefined) {
+
+ 'use strict';
+
+ ////////////////////////////////////////////////////////////////////////////
+
+ /*
+ * Fastest md5 implementation around (JKM md5)
+ * Credits: Joseph Myers
+ *
+ * @see http://www.myersdaily.org/joseph/javascript/md5-text.html
+ * @see http://jsperf.com/md5-shootout/7
+ */
+
+ /* this function is much faster,
+ so if possible we use it. Some IEs
+ are the only ones I know of that
+ need the idiotic second function,
+ generated by an if clause. */
+ var add32 = function (a, b) {
+ return (a + b) & 0xFFFFFFFF;
+ },
+
+ cmn = function (q, a, b, x, s, t) {
+ a = add32(add32(a, q), add32(x, t));
+ return add32((a << s) | (a >>> (32 - s)), b);
+ },
+
+ ff = function (a, b, c, d, x, s, t) {
+ return cmn((b & c) | ((~b) & d), a, b, x, s, t);
+ },
+
+ gg = function (a, b, c, d, x, s, t) {
+ return cmn((b & d) | (c & (~d)), a, b, x, s, t);
+ },
+
+ hh = function (a, b, c, d, x, s, t) {
+ return cmn(b ^ c ^ d, a, b, x, s, t);
+ },
+
+ ii = function (a, b, c, d, x, s, t) {
+ return cmn(c ^ (b | (~d)), a, b, x, s, t);
+ },
+
+ md5cycle = function (x, k) {
+ var a = x[0],
+ b = x[1],
+ c = x[2],
+ d = x[3];
+
+ a = ff(a, b, c, d, k[0], 7, -680876936);
+ d = ff(d, a, b, c, k[1], 12, -389564586);
+ c = ff(c, d, a, b, k[2], 17, 606105819);
+ b = ff(b, c, d, a, k[3], 22, -1044525330);
+ a = ff(a, b, c, d, k[4], 7, -176418897);
+ d = ff(d, a, b, c, k[5], 12, 1200080426);
+ c = ff(c, d, a, b, k[6], 17, -1473231341);
+ b = ff(b, c, d, a, k[7], 22, -45705983);
+ a = ff(a, b, c, d, k[8], 7, 1770035416);
+ d = ff(d, a, b, c, k[9], 12, -1958414417);
+ c = ff(c, d, a, b, k[10], 17, -42063);
+ b = ff(b, c, d, a, k[11], 22, -1990404162);
+ a = ff(a, b, c, d, k[12], 7, 1804603682);
+ d = ff(d, a, b, c, k[13], 12, -40341101);
+ c = ff(c, d, a, b, k[14], 17, -1502002290);
+ b = ff(b, c, d, a, k[15], 22, 1236535329);
+
+ a = gg(a, b, c, d, k[1], 5, -165796510);
+ d = gg(d, a, b, c, k[6], 9, -1069501632);
+ c = gg(c, d, a, b, k[11], 14, 643717713);
+ b = gg(b, c, d, a, k[0], 20, -373897302);
+ a = gg(a, b, c, d, k[5], 5, -701558691);
+ d = gg(d, a, b, c, k[10], 9, 38016083);
+ c = gg(c, d, a, b, k[15], 14, -660478335);
+ b = gg(b, c, d, a, k[4], 20, -405537848);
+ a = gg(a, b, c, d, k[9], 5, 568446438);
+ d = gg(d, a, b, c, k[14], 9, -1019803690);
+ c = gg(c, d, a, b, k[3], 14, -187363961);
+ b = gg(b, c, d, a, k[8], 20, 1163531501);
+ a = gg(a, b, c, d, k[13], 5, -1444681467);
+ d = gg(d, a, b, c, k[2], 9, -51403784);
+ c = gg(c, d, a, b, k[7], 14, 1735328473);
+ b = gg(b, c, d, a, k[12], 20, -1926607734);
+
+ a = hh(a, b, c, d, k[5], 4, -378558);
+ d = hh(d, a, b, c, k[8], 11, -2022574463);
+ c = hh(c, d, a, b, k[11], 16, 1839030562);
+ b = hh(b, c, d, a, k[14], 23, -35309556);
+ a = hh(a, b, c, d, k[1], 4, -1530992060);
+ d = hh(d, a, b, c, k[4], 11, 1272893353);
+ c = hh(c, d, a, b, k[7], 16, -155497632);
+ b = hh(b, c, d, a, k[10], 23, -1094730640);
+ a = hh(a, b, c, d, k[13], 4, 681279174);
+ d = hh(d, a, b, c, k[0], 11, -358537222);
+ c = hh(c, d, a, b, k[3], 16, -722521979);
+ b = hh(b, c, d, a, k[6], 23, 76029189);
+ a = hh(a, b, c, d, k[9], 4, -640364487);
+ d = hh(d, a, b, c, k[12], 11, -421815835);
+ c = hh(c, d, a, b, k[15], 16, 530742520);
+ b = hh(b, c, d, a, k[2], 23, -995338651);
+
+ a = ii(a, b, c, d, k[0], 6, -198630844);
+ d = ii(d, a, b, c, k[7], 10, 1126891415);
+ c = ii(c, d, a, b, k[14], 15, -1416354905);
+ b = ii(b, c, d, a, k[5], 21, -57434055);
+ a = ii(a, b, c, d, k[12], 6, 1700485571);
+ d = ii(d, a, b, c, k[3], 10, -1894986606);
+ c = ii(c, d, a, b, k[10], 15, -1051523);
+ b = ii(b, c, d, a, k[1], 21, -2054922799);
+ a = ii(a, b, c, d, k[8], 6, 1873313359);
+ d = ii(d, a, b, c, k[15], 10, -30611744);
+ c = ii(c, d, a, b, k[6], 15, -1560198380);
+ b = ii(b, c, d, a, k[13], 21, 1309151649);
+ a = ii(a, b, c, d, k[4], 6, -145523070);
+ d = ii(d, a, b, c, k[11], 10, -1120210379);
+ c = ii(c, d, a, b, k[2], 15, 718787259);
+ b = ii(b, c, d, a, k[9], 21, -343485551);
+
+ x[0] = add32(a, x[0]);
+ x[1] = add32(b, x[1]);
+ x[2] = add32(c, x[2]);
+ x[3] = add32(d, x[3]);
+ },
+
+ /* there needs to be support for Unicode here,
+ * unless we pretend that we can redefine the MD-5
+ * algorithm for multi-byte characters (perhaps
+ * by adding every four 16-bit characters and
+ * shortening the sum to 32 bits). Otherwise
+ * I suggest performing MD-5 as if every character
+ * was two bytes--e.g., 0040 0025 = @%--but then
+ * how will an ordinary MD-5 sum be matched?
+ * There is no way to standardize text to something
+ * like UTF-8 before transformation; speed cost is
+ * utterly prohibitive. The JavaScript standard
+ * itself needs to look at this: it should start
+ * providing access to strings as preformed UTF-8
+ * 8-bit unsigned value arrays.
+ */
+ md5blk = function (s) {
+ var md5blks = [],
+ i; /* Andy King said do it this way. */
+
+ for (i = 0; i < 64; i += 4) {
+ md5blks[i >> 2] = s.charCodeAt(i) + (s.charCodeAt(i + 1) << 8) + (s.charCodeAt(i + 2) << 16) + (s.charCodeAt(i + 3) << 24);
+ }
+ return md5blks;
+ },
+
+ md5blk_array = function (a) {
+ var md5blks = [],
+ i; /* Andy King said do it this way. */
+
+ for (i = 0; i < 64; i += 4) {
+ md5blks[i >> 2] = a[i] + (a[i + 1] << 8) + (a[i + 2] << 16) + (a[i + 3] << 24);
+ }
+ return md5blks;
+ },
+
+ md51 = function (s) {
+ var n = s.length,
+ state = [1732584193, -271733879, -1732584194, 271733878],
+ i,
+ length,
+ tail,
+ tmp,
+ lo,
+ hi;
+
+ for (i = 64; i <= n; i += 64) {
+ md5cycle(state, md5blk(s.substring(i - 64, i)));
+ }
+ s = s.substring(i - 64);
+ length = s.length;
+ tail = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
+ for (i = 0; i < length; i += 1) {
+ tail[i >> 2] |= s.charCodeAt(i) << ((i % 4) << 3);
+ }
+ tail[i >> 2] |= 0x80 << ((i % 4) << 3);
+ if (i > 55) {
+ md5cycle(state, tail);
+ for (i = 0; i < 16; i += 1) {
+ tail[i] = 0;
+ }
+ }
+
+ // Beware that the final length might not fit in 32 bits so we take care of that
+ tmp = n * 8;
+ tmp = tmp.toString(16).match(/(.*?)(.{0,8})$/);
+ lo = parseInt(tmp[2], 16);
+ hi = parseInt(tmp[1], 16) || 0;
+
+ tail[14] = lo;
+ tail[15] = hi;
+
+ md5cycle(state, tail);
+ return state;
+ },
+
+ md51_array = function (a) {
+ var n = a.length,
+ state = [1732584193, -271733879, -1732584194, 271733878],
+ i,
+ length,
+ tail,
+ tmp,
+ lo,
+ hi;
+
+ for (i = 64; i <= n; i += 64) {
+ md5cycle(state, md5blk_array(a.subarray(i - 64, i)));
+ }
+
+ // Not sure if it is a bug, however IE10 will always produce a sub array of length 1
+ // containing the last element of the parent array if the sub array specified starts
+ // beyond the length of the parent array - weird.
+ // https://connect.microsoft.com/IE/feedback/details/771452/typed-array-subarray-issue
+ a = (i - 64) < n ? a.subarray(i - 64) : new Uint8Array(0);
+
+ length = a.length;
+ tail = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
+ for (i = 0; i < length; i += 1) {
+ tail[i >> 2] |= a[i] << ((i % 4) << 3);
+ }
+
+ tail[i >> 2] |= 0x80 << ((i % 4) << 3);
+ if (i > 55) {
+ md5cycle(state, tail);
+ for (i = 0; i < 16; i += 1) {
+ tail[i] = 0;
+ }
+ }
+
+ // Beware that the final length might not fit in 32 bits so we take care of that
+ tmp = n * 8;
+ tmp = tmp.toString(16).match(/(.*?)(.{0,8})$/);
+ lo = parseInt(tmp[2], 16);
+ hi = parseInt(tmp[1], 16) || 0;
+
+ tail[14] = lo;
+ tail[15] = hi;
+
+ md5cycle(state, tail);
+
+ return state;
+ },
+
+ hex_chr = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'],
+
+ rhex = function (n) {
+ var s = '',
+ j;
+ for (j = 0; j < 4; j += 1) {
+ s += hex_chr[(n >> (j * 8 + 4)) & 0x0F] + hex_chr[(n >> (j * 8)) & 0x0F];
+ }
+ return s;
+ },
+
+ hex = function (x) {
+ var i;
+ for (i = 0; i < x.length; i += 1) {
+ x[i] = rhex(x[i]);
+ }
+ return x.join('');
+ },
+
+ md5 = function (s) {
+ return hex(md51(s));
+ },
+
+
+
+ ////////////////////////////////////////////////////////////////////////////
+
+ /**
+ * SparkMD5 OOP implementation.
+ *
+ * Use this class to perform an incremental md5, otherwise use the
+ * static methods instead.
+ */
+ SparkMD5 = function () {
+ // call reset to init the instance
+ this.reset();
+ };
+
+
+ // In some cases the fast add32 function cannot be used..
+ if (md5('hello') !== '5d41402abc4b2a76b9719d911017c592') {
+ add32 = function (x, y) {
+ var lsw = (x & 0xFFFF) + (y & 0xFFFF),
+ msw = (x >> 16) + (y >> 16) + (lsw >> 16);
+ return (msw << 16) | (lsw & 0xFFFF);
+ };
+ }
+
+
+ /**
+ * Appends a string.
+ * A conversion will be applied if an utf8 string is detected.
+ *
+ * @param {String} str The string to be appended
+ *
+ * @return {SparkMD5} The instance itself
+ */
+ SparkMD5.prototype.append = function (str) {
+ // converts the string to utf8 bytes if necessary
+ if (/[\u0080-\uFFFF]/.test(str)) {
+ str = unescape(encodeURIComponent(str));
+ }
+
+ // then append as binary
+ this.appendBinary(str);
+
+ return this;
+ };
+
+ /**
+ * Appends a binary string.
+ *
+ * @param {String} contents The binary string to be appended
+ *
+ * @return {SparkMD5} The instance itself
+ */
+ SparkMD5.prototype.appendBinary = function (contents) {
+ this._buff += contents;
+ this._length += contents.length;
+
+ var length = this._buff.length,
+ i;
+
+ for (i = 64; i <= length; i += 64) {
+ md5cycle(this._state, md5blk(this._buff.substring(i - 64, i)));
+ }
+
+ this._buff = this._buff.substr(i - 64);
+
+ return this;
+ };
+
+ /**
+ * Finishes the incremental computation, reseting the internal state and
+ * returning the result.
+ * Use the raw parameter to obtain the raw result instead of the hex one.
+ *
+ * @param {Boolean} raw True to get the raw result, false to get the hex result
+ *
+ * @return {String|Array} The result
+ */
+ SparkMD5.prototype.end = function (raw) {
+ var buff = this._buff,
+ length = buff.length,
+ i,
+ tail = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+ ret;
+
+ for (i = 0; i < length; i += 1) {
+ tail[i >> 2] |= buff.charCodeAt(i) << ((i % 4) << 3);
+ }
+
+ this._finish(tail, length);
+ ret = !!raw ? this._state : hex(this._state);
+
+ this.reset();
+
+ return ret;
+ };
+
+ /**
+ * Finish the final calculation based on the tail.
+ *
+ * @param {Array} tail The tail (will be modified)
+ * @param {Number} length The length of the remaining buffer
+ */
+ SparkMD5.prototype._finish = function (tail, length) {
+ var i = length,
+ tmp,
+ lo,
+ hi;
+
+ tail[i >> 2] |= 0x80 << ((i % 4) << 3);
+ if (i > 55) {
+ md5cycle(this._state, tail);
+ for (i = 0; i < 16; i += 1) {
+ tail[i] = 0;
+ }
+ }
+
+ // Do the final computation based on the tail and length
+ // Beware that the final length may not fit in 32 bits so we take care of that
+ tmp = this._length * 8;
+ tmp = tmp.toString(16).match(/(.*?)(.{0,8})$/);
+ lo = parseInt(tmp[2], 16);
+ hi = parseInt(tmp[1], 16) || 0;
+
+ tail[14] = lo;
+ tail[15] = hi;
+ md5cycle(this._state, tail);
+ };
+
+ /**
+ * Resets the internal state of the computation.
+ *
+ * @return {SparkMD5} The instance itself
+ */
+ SparkMD5.prototype.reset = function () {
+ this._buff = "";
+ this._length = 0;
+ this._state = [1732584193, -271733879, -1732584194, 271733878];
+
+ return this;
+ };
+
+ /**
+ * Releases memory used by the incremental buffer and other aditional
+ * resources. If you plan to use the instance again, use reset instead.
+ */
+ SparkMD5.prototype.destroy = function () {
+ delete this._state;
+ delete this._buff;
+ delete this._length;
+ };
+
+
+ /**
+ * Performs the md5 hash on a string.
+ * A conversion will be applied if utf8 string is detected.
+ *
+ * @param {String} str The string
+ * @param {Boolean} raw True to get the raw result, false to get the hex result
+ *
+ * @return {String|Array} The result
+ */
+ SparkMD5.hash = function (str, raw) {
+ // converts the string to utf8 bytes if necessary
+ if (/[\u0080-\uFFFF]/.test(str)) {
+ str = unescape(encodeURIComponent(str));
+ }
+
+ var hash = md51(str);
+
+ return !!raw ? hash : hex(hash);
+ };
+
+ /**
+ * Performs the md5 hash on a binary string.
+ *
+ * @param {String} content The binary string
+ * @param {Boolean} raw True to get the raw result, false to get the hex result
+ *
+ * @return {String|Array} The result
+ */
+ SparkMD5.hashBinary = function (content, raw) {
+ var hash = md51(content);
+
+ return !!raw ? hash : hex(hash);
+ };
+
+ /**
+ * SparkMD5 OOP implementation for array buffers.
+ *
+ * Use this class to perform an incremental md5 ONLY for array buffers.
+ */
+ SparkMD5.ArrayBuffer = function () {
+ // call reset to init the instance
+ this.reset();
+ };
+
+ ////////////////////////////////////////////////////////////////////////////
+
+ /**
+ * Appends an array buffer.
+ *
+ * @param {ArrayBuffer} arr The array to be appended
+ *
+ * @return {SparkMD5.ArrayBuffer} The instance itself
+ */
+ SparkMD5.ArrayBuffer.prototype.append = function (arr) {
+ // TODO: we could avoid the concatenation here but the algorithm would be more complex
+ // if you find yourself needing extra performance, please make a PR.
+ var buff = this._concatArrayBuffer(this._buff, arr),
+ length = buff.length,
+ i;
+
+ this._length += arr.byteLength;
+
+ for (i = 64; i <= length; i += 64) {
+ md5cycle(this._state, md5blk_array(buff.subarray(i - 64, i)));
+ }
+
+ // Avoids IE10 weirdness (documented above)
+ this._buff = (i - 64) < length ? buff.subarray(i - 64) : new Uint8Array(0);
+
+ return this;
+ };
+
+ /**
+ * Finishes the incremental computation, reseting the internal state and
+ * returning the result.
+ * Use the raw parameter to obtain the raw result instead of the hex one.
+ *
+ * @param {Boolean} raw True to get the raw result, false to get the hex result
+ *
+ * @return {String|Array} The result
+ */
+ SparkMD5.ArrayBuffer.prototype.end = function (raw) {
+ var buff = this._buff,
+ length = buff.length,
+ tail = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+ i,
+ ret;
+
+ for (i = 0; i < length; i += 1) {
+ tail[i >> 2] |= buff[i] << ((i % 4) << 3);
+ }
+
+ this._finish(tail, length);
+ ret = !!raw ? this._state : hex(this._state);
+
+ this.reset();
+
+ return ret;
+ };
+
+ SparkMD5.ArrayBuffer.prototype._finish = SparkMD5.prototype._finish;
+
+ /**
+ * Resets the internal state of the computation.
+ *
+ * @return {SparkMD5.ArrayBuffer} The instance itself
+ */
+ SparkMD5.ArrayBuffer.prototype.reset = function () {
+ this._buff = new Uint8Array(0);
+ this._length = 0;
+ this._state = [1732584193, -271733879, -1732584194, 271733878];
+
+ return this;
+ };
+
+ /**
+ * Releases memory used by the incremental buffer and other aditional
+ * resources. If you plan to use the instance again, use reset instead.
+ */
+ SparkMD5.ArrayBuffer.prototype.destroy = SparkMD5.prototype.destroy;
+
+ /**
+ * Concats two array buffers, returning a new one.
+ *
+ * @param {ArrayBuffer} first The first array buffer
+ * @param {ArrayBuffer} second The second array buffer
+ *
+ * @return {ArrayBuffer} The new array buffer
+ */
+ SparkMD5.ArrayBuffer.prototype._concatArrayBuffer = function (first, second) {
+ var firstLength = first.length,
+ result = new Uint8Array(firstLength + second.byteLength);
+
+ result.set(first);
+ result.set(new Uint8Array(second), firstLength);
+
+ return result;
+ };
+
+ /**
+ * Performs the md5 hash on an array buffer.
+ *
+ * @param {ArrayBuffer} arr The array buffer
+ * @param {Boolean} raw True to get the raw result, false to get the hex result
+ *
+ * @return {String|Array} The result
+ */
+ SparkMD5.ArrayBuffer.hash = function (arr, raw) {
+ var hash = md51_array(new Uint8Array(arr));
+
+ return !!raw ? hash : hex(hash);
+ };
+
+ return SparkMD5;
+}));
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-27 07:55:38 +0000