diff --git a/src/libs/md5.js b/src/libs/md5.js index a3c68d8ee..af75064b3 100644 --- a/src/libs/md5.js +++ b/src/libs/md5.js @@ -1,221 +1,224 @@ -/** - * @license - * Joseph Myers does not specify a particular license for his work. - * - * Author: Joseph Myers - * Accessed from: http://www.myersdaily.org/joseph/javascript/md5.js - * - * Modified by: Owen Leong - */ - -function md5cycle(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]); -} - -function cmn(q, a, b, x, s, t) { - a = add32(add32(a, q), add32(x, t)); - return add32((a << s) | (a >>> (32 - s)), b); -} - -function ff(a, b, c, d, x, s, t) { - return cmn((b & c) | (~b & d), a, b, x, s, t); -} - -function gg(a, b, c, d, x, s, t) { - return cmn((b & d) | (c & ~d), a, b, x, s, t); -} - -function hh(a, b, c, d, x, s, t) { - return cmn(b ^ c ^ d, a, b, x, s, t); -} - -function ii(a, b, c, d, x, s, t) { - return cmn(c ^ (b | ~d), a, b, x, s, t); -} - -function md51(s) { - // txt = ''; - var n = s.length, - state = [1732584193, -271733879, -1732584194, 271733878], - i; - for (i = 64; i <= s.length; i += 64) { - md5cycle(state, md5blk(s.substring(i - 64, i))); - } - s = s.substring(i - 64); - var tail = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; - for (i = 0; i < s.length; i++) - 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++) tail[i] = 0; - } - tail[14] = n * 8; - md5cycle(state, tail); - return state; -} - -/* 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. - */ -function md5blk(s) { - /* I figured global was faster. */ - 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; -} - -var hex_chr = "0123456789abcdef".split(""); - -function rhex(n) { - var s = "", - j = 0; - for (; j < 4; j++) - s += hex_chr[(n >> (j * 8 + 4)) & 0x0f] + hex_chr[(n >> (j * 8)) & 0x0f]; - return s; -} - -function hex(x) { - for (var i = 0; i < x.length; i++) x[i] = rhex(x[i]); - return x.join(""); -} - -// Converts a 4-byte number to byte string -function singleToByteString(n) { - return String.fromCharCode( - (n & 0xff) >> 0, - (n & 0xff00) >> 8, - (n & 0xff0000) >> 16, - (n & 0xff000000) >> 24 - ); -} - -// Converts an array of numbers to a byte string -function toByteString(x) { - return x.map(singleToByteString).join(""); -} - -// Returns the MD5 hash as a byte string -function md5Bin(s) { - return toByteString(md51(s)); -} - -// Returns MD5 hash as a hex string -function md5(s) { - return hex(md51(s)); -} - -/* 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. */ - -function add32(a, b) { - return (a + b) & 0xffffffff; -} - -if (md5("hello") != "5d41402abc4b2a76b9719d911017c592") { - function add32(x, y) { - var lsw = (x & 0xffff) + (y & 0xffff), - msw = (x >> 16) + (y >> 16) + (lsw >> 16); - return (msw << 16) | (lsw & 0xffff); - } -} - -export { md5, md5Bin }; +/** + * @license + * Joseph Myers does not specify a particular license for his work. + * + * Author: Joseph Myers + * Accessed from: http://www.myersdaily.org/joseph/javascript/md5.js + * + * Modified by: Owen Leong + */ + +function md5cycle(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]); +} + +function cmn(q, a, b, x, s, t) { + a = add32(add32(a, q), add32(x, t)); + return add32((a << s) | (a >>> (32 - s)), b); +} + +function ff(a, b, c, d, x, s, t) { + return cmn((b & c) | (~b & d), a, b, x, s, t); +} + +function gg(a, b, c, d, x, s, t) { + return cmn((b & d) | (c & ~d), a, b, x, s, t); +} + +function hh(a, b, c, d, x, s, t) { + return cmn(b ^ c ^ d, a, b, x, s, t); +} + +function ii(a, b, c, d, x, s, t) { + return cmn(c ^ (b | ~d), a, b, x, s, t); +} + +function md51(s) { + // txt = ''; + var n = s.length, + state = [1732584193, -271733879, -1732584194, 271733878], + i; + for (i = 64; i <= s.length; i += 64) { + md5cycle(state, md5blk(s.substring(i - 64, i))); + } + s = s.substring(i - 64); + var tail = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; + for (i = 0; i < s.length; i++) + 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++) tail[i] = 0; + } + tail[14] = n * 8; + md5cycle(state, tail); + return state; +} + +/* 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. + */ +function md5blk(s) { + /* I figured global was faster. */ + 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; +} + +var hex_chr = "0123456789abcdef".split(""); + +function rhex(n) { + var s = "", + j = 0; + for (; j < 4; j++) + s += hex_chr[(n >> (j * 8 + 4)) & 0x0f] + hex_chr[(n >> (j * 8)) & 0x0f]; + return s; +} + +function hex(x) { + for (var i = 0; i < x.length; i++) x[i] = rhex(x[i]); + return x.join(""); +} + +// Converts a 4-byte number to byte string +function singleToByteString(n) { + return String.fromCharCode( + (n & 0xff) >> 0, + (n & 0xff00) >> 8, + (n & 0xff0000) >> 16, + (n & 0xff000000) >> 24 + ); +} + +// Converts an array of numbers to a byte string +function toByteString(x) { + return x.map(singleToByteString).join(""); +} + +// Returns the MD5 hash as a byte string +function md5Bin(s) { + return toByteString(md51(s)); +} + +// Returns MD5 hash as a hex string +function md5(s) { + return hex(md51(s)); +} + +var md5Check = md5("hello") != "5d41402abc4b2a76b9719d911017c592"; + +function add32(a, b) { + if (md5Check) { + /* if the md5Check does not match + the expected value, we're dealing + with an old browser and need + this function. */ + var lsw = (a & 0xffff) + (b & 0xffff), + msw = (a >> 16) + (b >> 16) + (lsw >> 16); + return (msw << 16) | (lsw & 0xffff); + } else { + /* 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. */ + return (a + b) & 0xffffffff; + } +} + +export { md5, md5Bin };