212 lines
9.3 KiB
JavaScript
212 lines
9.3 KiB
JavaScript
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/** This file is part of KCFinder project
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*
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* @desc Helper MD5 checksum function
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* @package KCFinder
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* @version 3.12
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* @author Pavel Tzonkov <sunhater@sunhater.com>
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* @copyright 2010-2014 KCFinder Project
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* @license http://opensource.org/licenses/GPL-3.0 GPLv3
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* @license http://opensource.org/licenses/LGPL-3.0 LGPLv3
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* @link http://kcfinder.sunhater.com
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*/
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(function($) {
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$.$.utf8encode = function(string) {
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string = string.replace(/\r\n/g,"\n");
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var utftext = "";
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for (var n = 0; n < string.length; n++) {
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var c = string.charCodeAt(n);
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if (c < 128) {
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utftext += String.fromCharCode(c);
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} else if((c > 127) && (c < 2048)) {
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utftext += String.fromCharCode((c >> 6) | 192);
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utftext += String.fromCharCode((c & 63) | 128);
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} else {
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utftext += String.fromCharCode((c >> 12) | 224);
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utftext += String.fromCharCode(((c >> 6) & 63) | 128);
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utftext += String.fromCharCode((c & 63) | 128);
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}
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}
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return utftext;
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};
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$.$.md5 = function(string) {
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string = $.$.utf8encode(string);
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var RotateLeft = function(lValue, iShiftBits) {
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return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
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},
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AddUnsigned = function(lX, lY) {
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var lX8 = (lX & 0x80000000),
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lY8 = (lY & 0x80000000),
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lX4 = (lX & 0x40000000),
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lY4 = (lY & 0x40000000),
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lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
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if (lX4 & lY4)
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return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
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if (lX4 | lY4)
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return (lResult & 0x40000000)
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? (lResult ^ 0xC0000000 ^ lX8 ^ lY8)
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: (lResult ^ 0x40000000 ^ lX8 ^ lY8);
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else
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return (lResult ^ lX8 ^ lY8);
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},
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F = function(x, y, z) { return (x & y) | ((~x) & z); },
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G = function(x, y, z) { return (x & z) | (y & (~z)); },
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H = function(x, y, z) { return (x ^ y ^ z); },
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I = function(x, y, z) { return (y ^ (x | (~z))); },
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FF = function(a, b, c, d, x, s, ac) {
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a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
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return AddUnsigned(RotateLeft(a, s), b);
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},
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GG = function(a, b, c, d, x, s, ac) {
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a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
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return AddUnsigned(RotateLeft(a, s), b);
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},
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HH = function(a, b, c, d, x, s, ac) {
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a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
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return AddUnsigned(RotateLeft(a, s), b);
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},
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II = function(a, b, c, d, x, s, ac) {
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a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
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return AddUnsigned(RotateLeft(a, s), b);
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},
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ConvertToWordArray = function(string) {
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var lWordCount,
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lMessageLength = string.length,
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lNumberOfWords_temp1 = lMessageLength + 8,
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lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64,
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lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16,
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lWordArray = [lNumberOfWords - 1],
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lBytePosition = 0,
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lByteCount = 0;
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while (lByteCount < lMessageLength) {
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lWordCount = (lByteCount - (lByteCount % 4)) / 4;
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lBytePosition = (lByteCount % 4) * 8;
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lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
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lByteCount++;
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}
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lWordCount = (lByteCount - (lByteCount % 4)) / 4;
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lBytePosition = (lByteCount % 4) * 8;
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lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
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lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
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lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
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return lWordArray;
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},
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WordToHex = function(lValue) {
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var lByte, lCount = 0,
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WordToHexValue = "",
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WordToHexValue_temp = "";
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for (; lCount <= 3; lCount++) {
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lByte = (lValue >>> (lCount * 8)) & 255;
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WordToHexValue_temp = "0" + lByte.toString(16);
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WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2,2);
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}
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return WordToHexValue;
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},
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AA, BB, CC, DD, k = 0,
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x = ConvertToWordArray(string),
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a = 0x67452301, b = 0xEFCDAB89,
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c = 0x98BADCFE, d = 0x10325476,
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S11 = 7, S12 = 12, S13 = 17, S14 = 22,
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S21 = 5, S22 = 9, S23 = 14, S24 = 20,
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S31 = 4, S32 = 11, S33 = 16, S34 = 23,
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S41 = 6, S42 = 10, S43 = 15, S44 = 21;
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for (; k < x.length; k += 16) {
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AA = a; BB = b; CC = c; DD = d;
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a = FF(a, b, c, d, x[k + 0], S11, 0xD76AA478);
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d = FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
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c = FF(c, d, a, b, x[k + 2], S13, 0x242070DB);
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b = FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
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a = FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
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d = FF(d, a, b, c, x[k + 5], S12, 0x4787C62A);
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c = FF(c, d, a, b, x[k + 6], S13, 0xA8304613);
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b = FF(b, c, d, a, x[k + 7], S14, 0xFD469501);
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a = FF(a, b, c, d, x[k + 8], S11, 0x698098D8);
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d = FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
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c = FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
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b = FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
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a = FF(a, b, c, d, x[k + 12], S11, 0x6B901122);
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d = FF(d, a, b, c, x[k + 13], S12, 0xFD987193);
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c = FF(c, d, a, b, x[k + 14], S13, 0xA679438E);
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b = FF(b, c, d, a, x[k + 15], S14, 0x49B40821);
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a = GG(a, b, c, d, x[k + 1], S21, 0xF61E2562);
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d = GG(d, a, b, c, x[k + 6], S22, 0xC040B340);
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c = GG(c, d, a, b, x[k + 11], S23, 0x265E5A51);
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b = GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
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a = GG(a, b, c, d, x[k + 5], S21, 0xD62F105D);
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d = GG(d, a, b, c, x[k + 10], S22, 0x2441453);
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c = GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
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b = GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
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a = GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
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d = GG(d, a, b, c, x[k + 14], S22, 0xC33707D6);
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c = GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
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b = GG(b, c, d, a, x[k + 8], S24, 0x455A14ED);
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a = GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
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d = GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
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c = GG(c, d, a, b, x[k + 7], S23, 0x676F02D9);
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b = GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
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a = HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
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d = HH(d, a, b, c, x[k + 8], S32, 0x8771F681);
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c = HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
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b = HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
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a = HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
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d = HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
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c = HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
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b = HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
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a = HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
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d = HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
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c = HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
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b = HH(b, c, d, a, x[k + 6], S34, 0x4881D05);
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a = HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
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d = HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
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c = HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
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b = HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
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a = II(a, b, c, d, x[k + 0], S41, 0xF4292244);
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d = II(d, a, b, c, x[k + 7], S42, 0x432AFF97);
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c = II(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
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b = II(b, c, d, a, x[k + 5], S44, 0xFC93A039);
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a = II(a, b, c, d, x[k + 12], S41, 0x655B59C3);
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d = II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
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c = II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
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b = II(b, c, d, a, x[k + 1], S44, 0x85845DD1);
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a = II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
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d = II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
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c = II(c, d, a, b, x[k + 6], S43, 0xA3014314);
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b = II(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
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a = II(a, b, c, d, x[k + 4], S41, 0xF7537E82);
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d = II(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
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c = II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
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b = II(b, c, d, a, x[k + 9], S44, 0xEB86D391);
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a = AddUnsigned(a, AA);
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b = AddUnsigned(b, BB);
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c = AddUnsigned(c, CC);
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d = AddUnsigned(d, DD);
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}
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return (WordToHex(a) + WordToHex(b) + WordToHex(c) + WordToHex(d)).toLowerCase();
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};
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})(jQuery);
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