react-strophe
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Strophe.js is an XMPP library for JavaScript
216 lines (192 loc) • 7.17 kB
JavaScript
// /*
// * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
// * Digest Algorithm, as defined in RFC 1321.
// * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
// * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
// * Distributed under the BSD License
// * See http://pajhome.org.uk/crypt/md5 for more info.
// */
// /*
// * Everything that isn't used by Strophe has been stripped here!
// */
// (function(root, factory) {
// if (typeof define === "function" && define.amd) {
// define([], function() {
// return factory();
// });
// } else if (typeof exports === "object") {
// module.exports = factory();
// } else {
// // Browser globals
// root.MD5 = factory();
// }
// })(this, function() {
// });
/*
* Add integers, wrapping at 2^32. This uses 16-bit operations internally
* to work around bugs in some JS interpreters.
*/
var safe_add = function(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.
*/
var bit_rol = function(num, cnt) {
return (num << cnt) | (num >>> (32 - cnt));
};
/*
* Convert a string to an array of little-endian words
*/
var str2binl = function(str) {
var bin = [];
for (var i = 0; i < str.length * 8; i += 8) {
bin[i >> 5] |= (str.charCodeAt(i / 8) & 255) << (i % 32);
}
return bin;
};
/*
* Convert an array of little-endian words to a string
*/
var binl2str = function(bin) {
var str = "";
for (var i = 0; i < bin.length * 32; i += 8) {
str += String.fromCharCode((bin[i >> 5] >>> (i % 32)) & 255);
}
return str;
};
/*
* Convert an array of little-endian words to a hex string.
*/
var binl2hex = function(binarray) {
var hex_tab = "0123456789abcdef";
var str = "";
for (var i = 0; i < binarray.length * 4; i++) {
str +=
hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8 + 4)) & 0xf) +
hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8)) & 0xf);
}
return str;
};
/*
* These functions implement the four basic operations the algorithm uses.
*/
var md5_cmn = function(q, a, b, x, s, t) {
return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b);
};
var md5_ff = function(a, b, c, d, x, s, t) {
return md5_cmn((b & c) | (~b & d), a, b, x, s, t);
};
var md5_gg = function(a, b, c, d, x, s, t) {
return md5_cmn((b & d) | (c & ~d), a, b, x, s, t);
};
var md5_hh = function(a, b, c, d, x, s, t) {
return md5_cmn(b ^ c ^ d, a, b, x, s, t);
};
var md5_ii = function(a, b, c, d, x, s, t) {
return md5_cmn(c ^ (b | ~d), a, b, x, s, t);
};
/*
* Calculate the MD5 of an array of little-endian words, and a bit length
*/
var core_md5 = function(x, len) {
/* append padding */
x[len >> 5] |= 0x80 << (len % 32);
x[(((len + 64) >>> 9) << 4) + 14] = len;
var a = 1732584193;
var b = -271733879;
var c = -1732584194;
var d = 271733878;
var olda, oldb, oldc, oldd;
for (var i = 0; i < x.length; i += 16) {
olda = a;
oldb = b;
oldc = c;
oldd = d;
a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936);
d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586);
c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819);
b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330);
a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897);
d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426);
c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341);
b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983);
a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416);
d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417);
c = md5_ff(c, d, a, b, x[i + 10], 17, -42063);
b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162);
a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682);
d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101);
c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290);
b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329);
a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510);
d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632);
c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713);
b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302);
a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691);
d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083);
c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335);
b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848);
a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438);
d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690);
c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961);
b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501);
a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467);
d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784);
c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473);
b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734);
a = md5_hh(a, b, c, d, x[i + 5], 4, -378558);
d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463);
c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562);
b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556);
a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060);
d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353);
c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632);
b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640);
a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174);
d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222);
c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979);
b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189);
a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487);
d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835);
c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520);
b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651);
a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844);
d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415);
c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905);
b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055);
a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571);
d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606);
c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523);
b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799);
a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359);
d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744);
c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380);
b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649);
a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070);
d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379);
c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259);
b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551);
a = safe_add(a, olda);
b = safe_add(b, oldb);
c = safe_add(c, oldc);
d = safe_add(d, oldd);
}
return [a, b, c, d];
};
var obj = {
/*
* These are the functions you'll usually want to call.
* They take string arguments and return either hex or base-64 encoded
* strings.
*/
hexdigest: function(s) {
return binl2hex(core_md5(str2binl(s), s.length * 8));
},
hash: function(s) {
return binl2str(core_md5(str2binl(s), s.length * 8));
}
};
module.exports = obj;