psy_web_share/utils/md5.js

function md5(string) {
  var rotateLeft = function (lValue, iShiftBits) {
    return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
}
 
var addUnsigned = function (lX, lY) {
    var lX4, lY4, lX8, lY8, lResult;
    lX8 = (lX & 0x80000000);
    lY8 = (lY & 0x80000000);
    lX4 = (lX & 0x40000000);
    lY4 = (lY & 0x40000000);
    lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
    if (lX4 & lY4) return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
    if (lX4 | lY4) {
        if (lResult & 0x40000000) return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
        else return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
    } else {
        return (lResult ^ lX8 ^ lY8);
    }
}
 
var F = function (x, y, z) {
    return (x & y) | ((~x) & z);
}
 
var G = function (x, y, z) {
    return (x & z) | (y & (~z));
}
 
var H = function (x, y, z) {
    return (x ^ y ^ z);
}
 
var I = function (x, y, z) {
    return (y ^ (x | (~z)));
}
 
var FF = function (a, b, c, d, x, s, ac) {
    a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
};
 
var GG = function (a, b, c, d, x, s, ac) {
    a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
};
 
var HH = function (a, b, c, d, x, s, ac) {
    a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
};
 
var II = function (a, b, c, d, x, s, ac) {
    a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
};
 
var convertToWordArray = function (string) {
    var lWordCount;
    var lMessageLength = string.length;
    var lNumberOfWordsTempOne = lMessageLength + 8;
    var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64;
    var lNumberOfWords = (lNumberOfWordsTempTwo + 1) * 16;
    var lWordArray = Array(lNumberOfWords - 1);
    var lBytePosition = 0;
    var lByteCount = 0;
    while (lByteCount < lMessageLength) {
        lWordCount = (lByteCount - (lByteCount % 4)) / 4;
        lBytePosition = (lByteCount % 4) * 8;
        lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
        lByteCount++;
    }
    lWordCount = (lByteCount - (lByteCount % 4)) / 4;
    lBytePosition = (lByteCount % 4) * 8;
    lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
    lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
    lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
    return lWordArray;
};
 
var wordToHex = function (lValue) {
    var WordToHexValue = "",
        WordToHexValueTemp = "",
        lByte, lCount;
    for (lCount = 0; lCount <= 3; lCount++) {
        lByte = (lValue >>> (lCount * 8)) & 255;
        WordToHexValueTemp = "0" + lByte.toString(16);
        WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - 2, 2);
    }
    return WordToHexValue;
};
 
var uTF8Encode = function (string) {
    string = string.replace(/\x0d\x0a/g, "\x0a");
    var output = "";
    for (var n = 0; n < string.length; n++) {
        var c = string.charCodeAt(n);
        if (c < 128) {
            output += String.fromCharCode(c);
        } else if ((c > 127) && (c < 2048)) {
            output += String.fromCharCode((c >> 6) | 192);
            output += String.fromCharCode((c & 63) | 128);
        } else {
            output += String.fromCharCode((c >> 12) | 224);
            output += String.fromCharCode(((c >> 6) & 63) | 128);
            output += String.fromCharCode((c & 63) | 128);
        }
    }
    return output;
};
var x = Array();
            var k, AA, BB, CC, DD, a, b, c, d;
            var S11 = 7,
                S12 = 12,
                S13 = 17,
                S14 = 22;
            var S21 = 5,
                S22 = 9,
                S23 = 14,
                S24 = 20;
            var S31 = 4,
                S32 = 11,
                S33 = 16,
                S34 = 23;
            var S41 = 6,
                S42 = 10,
                S43 = 15,
                S44 = 21;
            string = uTF8Encode(string);
            x = convertToWordArray(string);
            a = 0x67452301;
            b = 0xEFCDAB89;
            c = 0x98BADCFE;
            d = 0x10325476;
            for (k = 0; k < x.length; k += 16) {
                AA = a;
                BB = b;
                CC = c;
                DD = d;
                a = FF(a, b, c, d, x[k + 0], S11, 0xD76AA478);
                d = FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
                c = FF(c, d, a, b, x[k + 2], S13, 0x242070DB);
                b = FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
                a = FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
                d = FF(d, a, b, c, x[k + 5], S12, 0x4787C62A);
                c = FF(c, d, a, b, x[k + 6], S13, 0xA8304613);
                b = FF(b, c, d, a, x[k + 7], S14, 0xFD469501);
                a = FF(a, b, c, d, x[k + 8], S11, 0x698098D8);
                d = FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
                c = FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
                b = FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
                a = FF(a, b, c, d, x[k + 12], S11, 0x6B901122);
                d = FF(d, a, b, c, x[k + 13], S12, 0xFD987193);
                c = FF(c, d, a, b, x[k + 14], S13, 0xA679438E);
                b = FF(b, c, d, a, x[k + 15], S14, 0x49B40821);
                a = GG(a, b, c, d, x[k + 1], S21, 0xF61E2562);
                d = GG(d, a, b, c, x[k + 6], S22, 0xC040B340);
                c = GG(c, d, a, b, x[k + 11], S23, 0x265E5A51);
                b = GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
                a = GG(a, b, c, d, x[k + 5], S21, 0xD62F105D);
                d = GG(d, a, b, c, x[k + 10], S22, 0x2441453);
                c = GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
                b = GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
                a = GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
                d = GG(d, a, b, c, x[k + 14], S22, 0xC33707D6);
                c = GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
                b = GG(b, c, d, a, x[k + 8], S24, 0x455A14ED);
                a = GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
                d = GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
                c = GG(c, d, a, b, x[k + 7], S23, 0x676F02D9);
                b = GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
                a = HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
                d = HH(d, a, b, c, x[k + 8], S32, 0x8771F681);
                c = HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
                b = HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
                a = HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
                d = HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
                c = HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
                b = HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
                a = HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
                d = HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
                c = HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
                b = HH(b, c, d, a, x[k + 6], S34, 0x4881D05);
                a = HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
                d = HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
                c = HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
                b = HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
                a = II(a, b, c, d, x[k + 0], S41, 0xF4292244);
                d = II(d, a, b, c, x[k + 7], S42, 0x432AFF97);
                c = II(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
                b = II(b, c, d, a, x[k + 5], S44, 0xFC93A039);
                a = II(a, b, c, d, x[k + 12], S41, 0x655B59C3);
                d = II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
                c = II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
                b = II(b, c, d, a, x[k + 1], S44, 0x85845DD1);
                a = II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
                d = II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
                c = II(c, d, a, b, x[k + 6], S43, 0xA3014314);
                b = II(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
                a = II(a, b, c, d, x[k + 4], S41, 0xF7537E82);
                d = II(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
                c = II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
                b = II(b, c, d, a, x[k + 9], S44, 0xEB86D391);
                a = addUnsigned(a, AA);
                b = addUnsigned(b, BB);
                c = addUnsigned(c, CC);
                d = addUnsigned(d, DD);
            }
            var tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
            return tempValue.toLowerCase();
 
}
module.exports = {  
md5: md5
}