Chapril/xmpp.chapril.org-conversejs
Chapril/xmpp.chapril.org-conversejs
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xmpp.chapril.org-conversejs/Libraries/strophe.js

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Add third party js on which converse.js depends
2012-10-23 20:47:59 +02:00
// This code was written by Tyler Akins and has been placed in the
// public domain. It would be nice if you left this header intact.
// Base64 code from Tyler Akins -- http://rumkin.com
var Base64 = (function () {
var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
var obj = {
/**
* Encodes a string in base64
* @param {String} input The string to encode in base64.
*/
encode: function (input) {
var output = "";
var chr1, chr2, chr3;
var enc1, enc2, enc3, enc4;
var i = 0;
do {
chr1 = input.charCodeAt(i++);
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}
output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) +
keyStr.charAt(enc3) + keyStr.charAt(enc4);
} while (i < input.length);
return output;
},
/**
* Decodes a base64 string.
* @param {String} input The string to decode.
*/
decode: function (input) {
var output = "";
var chr1, chr2, chr3;
var enc1, enc2, enc3, enc4;
var i = 0;
// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
do {
enc1 = keyStr.indexOf(input.charAt(i++));
enc2 = keyStr.indexOf(input.charAt(i++));
enc3 = keyStr.indexOf(input.charAt(i++));
enc4 = keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 != 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 != 64) {
output = output + String.fromCharCode(chr3);
}
} while (i < input.length);
return output;
}
};
return obj;
})();
/*
* A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
* in FIPS PUB 180-1
* Version 2.1a Copyright Paul Johnston 2000 - 2002.
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
* Distributed under the BSD License
* See http://pajhome.org.uk/crypt/md5 for details.
*/
/*
* Configurable variables. You may need to tweak these to be compatible with
* the server-side, but the defaults work in most cases.
*/
var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */
var b64pad = "="; /* base-64 pad character. "=" for strict RFC compliance */
var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */
/*
* These are the functions you'll usually want to call
* They take string arguments and return either hex or base-64 encoded strings
*/
function hex_sha1(s){return binb2hex(core_sha1(str2binb(s),s.length * chrsz));}
function b64_sha1(s){return binb2b64(core_sha1(str2binb(s),s.length * chrsz));}
function str_sha1(s){return binb2str(core_sha1(str2binb(s),s.length * chrsz));}
function hex_hmac_sha1(key, data){ return binb2hex(core_hmac_sha1(key, data));}
function b64_hmac_sha1(key, data){ return binb2b64(core_hmac_sha1(key, data));}
function str_hmac_sha1(key, data){ return binb2str(core_hmac_sha1(key, data));}
/*
* Perform a simple self-test to see if the VM is working
*/
function sha1_vm_test()
{
return hex_sha1("abc") == "a9993e364706816aba3e25717850c26c9cd0d89d";
}
/*
* Calculate the SHA-1 of an array of big-endian words, and a bit length
*/
function core_sha1(x, len)
{
/* append padding */
x[len >> 5] |= 0x80 << (24 - len % 32);
x[((len + 64 >> 9) << 4) + 15] = len;
var w = new Array(80);
var a = 1732584193;
var b = -271733879;
var c = -1732584194;
var d = 271733878;
var e = -1009589776;
var i, j, t, olda, oldb, oldc, oldd, olde;
for (i = 0; i < x.length; i += 16)
{
olda = a;
oldb = b;
oldc = c;
oldd = d;
olde = e;
for (j = 0; j < 80; j++)
{
if (j < 16) { w[j] = x[i + j]; }
else { w[j] = rol(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1); }
t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)),
safe_add(safe_add(e, w[j]), sha1_kt(j)));
e = d;
d = c;
c = rol(b, 30);
b = a;
a = t;
}
a = safe_add(a, olda);
b = safe_add(b, oldb);
c = safe_add(c, oldc);
d = safe_add(d, oldd);
e = safe_add(e, olde);
}
return [a, b, c, d, e];
}
/*
* Perform the appropriate triplet combination function for the current
* iteration
*/
function sha1_ft(t, b, c, d)
{
if (t < 20) { return (b & c) | ((~b) & d); }
if (t < 40) { return b ^ c ^ d; }
if (t < 60) { return (b & c) | (b & d) | (c & d); }
return b ^ c ^ d;
}
/*
* Determine the appropriate additive constant for the current iteration
*/
function sha1_kt(t)
{
return (t < 20) ? 1518500249 : (t < 40) ? 1859775393 :
(t < 60) ? -1894007588 : -899497514;
}
/*
* Calculate the HMAC-SHA1 of a key and some data
*/
function core_hmac_sha1(key, data)
{
var bkey = str2binb(key);
if (bkey.length > 16) { bkey = core_sha1(bkey, key.length * chrsz); }
var ipad = new Array(16), opad = new Array(16);
for (var i = 0; i < 16; i++)
{
ipad[i] = bkey[i] ^ 0x36363636;
opad[i] = bkey[i] ^ 0x5C5C5C5C;
}
var hash = core_sha1(ipad.concat(str2binb(data)), 512 + data.length * chrsz);
return core_sha1(opad.concat(hash), 512 + 160);
}
/*
* Add integers, wrapping at 2^32. This uses 16-bit operations internally
* to work around bugs in some JS interpreters.
*/
function safe_add(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.
*/
function rol(num, cnt)
{
return (num << cnt) | (num >>> (32 - cnt));
}
/*
* Convert an 8-bit or 16-bit string to an array of big-endian words
* In 8-bit function, characters >255 have their hi-byte silently ignored.
*/
function str2binb(str)
{
var bin = [];
var mask = (1 << chrsz) - 1;
for (var i = 0; i < str.length * chrsz; i += chrsz)
{
bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (32 - chrsz - i%32);
}
return bin;
}
/*
* Convert an array of big-endian words to a string
*/
function binb2str(bin)
{
var str = "";
var mask = (1 << chrsz) - 1;
for (var i = 0; i < bin.length * 32; i += chrsz)
{
str += String.fromCharCode((bin[i>>5] >>> (32 - chrsz - i%32)) & mask);
}
return str;
}
/*
* Convert an array of big-endian words to a hex string.
*/
function binb2hex(binarray)
{
var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
var str = "";
for (var i = 0; i < binarray.length * 4; i++)
{
str += hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8+4)) & 0xF) +
hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8 )) & 0xF);
}
return str;
}
/*
* Convert an array of big-endian words to a base-64 string
*/
function binb2b64(binarray)
{
var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var str = "";
var triplet, j;
for (var i = 0; i < binarray.length * 4; i += 3)
{
triplet = (((binarray[i >> 2] >> 8 * (3 - i %4)) & 0xFF) << 16) |
(((binarray[i+1 >> 2] >> 8 * (3 - (i+1)%4)) & 0xFF) << 8 ) |
((binarray[i+2 >> 2] >> 8 * (3 - (i+2)%4)) & 0xFF);
for (j = 0; j < 4; j++)
{
if (i * 8 + j * 6 > binarray.length * 32) { str += b64pad; }
else { str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); }
}
}
return str;
}
/*
* 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.
*/
var MD5 = (function () {
/*
* Configurable variables. You may need to tweak these to be compatible with
* the server-side, but the defaults work in most cases.
*/
var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */
var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance */
var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */
/*
* 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
* If chrsz is ASCII, characters >255 have their hi-byte silently ignored.
*/
var str2binl = function (str) {
var bin = [];
var mask = (1 << chrsz) - 1;
for(var i = 0; i < str.length * chrsz; i += chrsz)
{
bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);
}
return bin;
};
/*
* Convert an array of little-endian words to a string
*/
var binl2str = function (bin) {
var str = "";
var mask = (1 << chrsz) - 1;
for(var i = 0; i < bin.length * 32; i += chrsz)
{
str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
}
return str;
};
/*
* Convert an array of little-endian words to a hex string.
*/
var binl2hex = function (binarray) {
var hex_tab = hexcase ? "0123456789ABCDEF" : "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;
};
/*
* Convert an array of little-endian words to a base-64 string
*/
var binl2b64 = function (binarray) {
var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var str = "";
var triplet, j;
for(var i = 0; i < binarray.length * 4; i += 3)
{
triplet = (((binarray[i >> 2] >> 8 * ( i %4)) & 0xFF) << 16) |
(((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 ) |
((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);
for(j = 0; j < 4; j++)
{
if(i * 8 + j * 6 > binarray.length * 32) { str += b64pad; }
else { str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); }
}
}
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];
};
/*
* Calculate the HMAC-MD5, of a key and some data
*/
var core_hmac_md5 = function (key, data) {
var bkey = str2binl(key);
if(bkey.length > 16) { bkey = core_md5(bkey, key.length * chrsz); }
var ipad = new Array(16), opad = new Array(16);
for(var i = 0; i < 16; i++)
{
ipad[i] = bkey[i] ^ 0x36363636;
opad[i] = bkey[i] ^ 0x5C5C5C5C;
}
var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
return core_md5(opad.concat(hash), 512 + 128);
};
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 * chrsz));
},
b64digest: function (s) {
return binl2b64(core_md5(str2binl(s), s.length * chrsz));
},
hash: function (s) {
return binl2str(core_md5(str2binl(s), s.length * chrsz));
},
hmac_hexdigest: function (key, data) {
return binl2hex(core_hmac_md5(key, data));
},
hmac_b64digest: function (key, data) {
return binl2b64(core_hmac_md5(key, data));
},
hmac_hash: function (key, data) {
return binl2str(core_hmac_md5(key, data));
},
/*
* Perform a simple self-test to see if the VM is working
*/
test: function () {
return MD5.hexdigest("abc") === "900150983cd24fb0d6963f7d28e17f72";
}
};
return obj;
})();
/*
This program is distributed under the terms of the MIT license.
Please see the LICENSE file for details.
Copyright 2006-2008, OGG, LLC
*/
/* jslint configuration: */
/*global document, window, setTimeout, clearTimeout, console,
XMLHttpRequest, ActiveXObject,
Base64, MD5,
Strophe, $build, $msg, $iq, $pres */
/** File: strophe.js
* A JavaScript library for XMPP BOSH.
*
* This is the JavaScript version of the Strophe library. Since JavaScript
* has no facilities for persistent TCP connections, this library uses
* Bidirectional-streams Over Synchronous HTTP (BOSH) to emulate
* a persistent, stateful, two-way connection to an XMPP server. More
* information on BOSH can be found in XEP 124.
*/
/** PrivateFunction: Function.prototype.bind
* Bind a function to an instance.
*
* This Function object extension method creates a bound method similar
* to those in Python. This means that the 'this' object will point
* to the instance you want. See
* <a href='https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Function/bind'>MDC's bind() documentation</a> and
* <a href='http://benjamin.smedbergs.us/blog/2007-01-03/bound-functions-and-function-imports-in-javascript/'>Bound Functions and Function Imports in JavaScript</a>
* for a complete explanation.
*
* This extension already exists in some browsers (namely, Firefox 3), but
* we provide it to support those that don't.
*
* Parameters:
* (Object) obj - The object that will become 'this' in the bound function.
* (Object) argN - An option argument that will be prepended to the
* arguments given for the function call
*
* Returns:
* The bound function.
*/
if (!Function.prototype.bind) {
Function.prototype.bind = function (obj /*, arg1, arg2, ... */)
{
var func = this;
var _slice = Array.prototype.slice;
var _concat = Array.prototype.concat;
var _args = _slice.call(arguments, 1);
return function () {
return func.apply(obj ? obj : this,
_concat.call(_args,
_slice.call(arguments, 0)));
};
};
}
/** PrivateFunction: Array.prototype.indexOf
* Return the index of an object in an array.
*
* This function is not supplied by some JavaScript implementations, so
* we provide it if it is missing. This code is from:
* http://developer.mozilla.org/En/Core_JavaScript_1.5_Reference:Objects:Array:indexOf
*
* Parameters:
* (Object) elt - The object to look for.
* (Integer) from - The index from which to start looking. (optional).
*
* Returns:
* The index of elt in the array or -1 if not found.
*/
if (!Array.prototype.indexOf)
{
Array.prototype.indexOf = function(elt /*, from*/)
{
var len = this.length;
var from = Number(arguments[1]) || 0;
from = (from < 0) ? Math.ceil(from) : Math.floor(from);
if (from < 0) {
from += len;
}
for (; from < len; from++) {
if (from in this && this[from] === elt) {
return from;
}
}
return -1;
};
}
/* All of the Strophe globals are defined in this special function below so
* that references to the globals become closures. This will ensure that
* on page reload, these references will still be available to callbacks
* that are still executing.
*/
(function (callback) {
var Strophe;
/** Function: $build
* Create a Strophe.Builder.
* This is an alias for 'new Strophe.Builder(name, attrs)'.
*
* Parameters:
* (String) name - The root element name.
* (Object) attrs - The attributes for the root element in object notation.
*
* Returns:
* A new Strophe.Builder object.
*/
function $build(name, attrs) { return new Strophe.Builder(name, attrs); }
/** Function: $msg
* Create a Strophe.Builder with a <message/> element as the root.
*
* Parmaeters:
* (Object) attrs - The <message/> element attributes in object notation.
*
* Returns:
* A new Strophe.Builder object.
*/
function $msg(attrs) { return new Strophe.Builder("message", attrs); }
/** Function: $iq
* Create a Strophe.Builder with an <iq/> element as the root.
*
* Parameters:
* (Object) attrs - The <iq/> element attributes in object notation.
*
* Returns:
* A new Strophe.Builder object.
*/
function $iq(attrs) { return new Strophe.Builder("iq", attrs); }
/** Function: $pres
* Create a Strophe.Builder with a <presence/> element as the root.
*
* Parameters:
* (Object) attrs - The <presence/> element attributes in object notation.
*
* Returns:
* A new Strophe.Builder object.
*/
function $pres(attrs) { return new Strophe.Builder("presence", attrs); }
/** Class: Strophe
* An object container for all Strophe library functions.
*
* This class is just a container for all the objects and constants
* used in the library. It is not meant to be instantiated, but to
* provide a namespace for library objects, constants, and functions.
*/
Strophe = {
/** Constant: VERSION
* The version of the Strophe library. Unreleased builds will have
* a version of head-HASH where HASH is a partial revision.
*/
VERSION: "e9eced8",
/** Constants: XMPP Namespace Constants
* Common namespace constants from the XMPP RFCs and XEPs.
*
* NS.HTTPBIND - HTTP BIND namespace from XEP 124.
* NS.BOSH - BOSH namespace from XEP 206.
* NS.CLIENT - Main XMPP client namespace.
* NS.AUTH - Legacy authentication namespace.
* NS.ROSTER - Roster operations namespace.
* NS.PROFILE - Profile namespace.
* NS.DISCO_INFO - Service discovery info namespace from XEP 30.
* NS.DISCO_ITEMS - Service discovery items namespace from XEP 30.
* NS.MUC - Multi-User Chat namespace from XEP 45.
* NS.SASL - XMPP SASL namespace from RFC 3920.
* NS.STREAM - XMPP Streams namespace from RFC 3920.
* NS.BIND - XMPP Binding namespace from RFC 3920.
* NS.SESSION - XMPP Session namespace from RFC 3920.
* NS.XHTML_IM - XHTML-IM namespace from XEP 71.
* NS.XHTML - XHTML body namespace from XEP 71.
*/
NS: {
HTTPBIND: "http://jabber.org/protocol/httpbind",
BOSH: "urn:xmpp:xbosh",
CLIENT: "jabber:client",
AUTH: "jabber:iq:auth",
ROSTER: "jabber:iq:roster",
PROFILE: "jabber:iq:profile",
DISCO_INFO: "http://jabber.org/protocol/disco#info",
DISCO_ITEMS: "http://jabber.org/protocol/disco#items",
MUC: "http://jabber.org/protocol/muc",
SASL: "urn:ietf:params:xml:ns:xmpp-sasl",
STREAM: "http://etherx.jabber.org/streams",
BIND: "urn:ietf:params:xml:ns:xmpp-bind",
SESSION: "urn:ietf:params:xml:ns:xmpp-session",
VERSION: "jabber:iq:version",
STANZAS: "urn:ietf:params:xml:ns:xmpp-stanzas",
XHTML_IM: "http://jabber.org/protocol/xhtml-im",
XHTML: "http://www.w3.org/1999/xhtml"
},
/** Constants: XHTML_IM Namespace
* contains allowed tags, tag attributes, and css properties.
* Used in the createHtml function to filter incoming html into the allowed XHTML-IM subset.
* See http://xmpp.org/extensions/xep-0071.html#profile-summary for the list of recommended
* allowed tags and their attributes.
*/
XHTML: {
tags: ['a','blockquote','br','cite','em','img','li','ol','p','span','strong','ul','body'],
attributes: {
'a': ['href'],
'blockquote': ['style'],
'br': [],
'cite': ['style'],
'em': [],
'img': ['src', 'alt', 'style', 'height', 'width'],
'li': ['style'],
'ol': ['style'],
'p': ['style'],
'span': ['style'],
'strong': [],
'ul': ['style'],
'body': []
},
css: ['background-color','color','font-family','font-size','font-style','font-weight','margin-left','margin-right','text-align','text-decoration'],
validTag: function(tag)
{
for(var i = 0; i < Strophe.XHTML.tags.length; i++) {
if(tag == Strophe.XHTML.tags[i]) {
return true;
}
}
return false;
},
validAttribute: function(tag, attribute)
{
if(typeof Strophe.XHTML.attributes[tag] !== 'undefined' && Strophe.XHTML.attributes[tag].length > 0) {
for(var i = 0; i < Strophe.XHTML.attributes[tag].length; i++) {
if(attribute == Strophe.XHTML.attributes[tag][i]) {
return true;
}
}
}
return false;
},
validCSS: function(style)
{
for(var i = 0; i < Strophe.XHTML.css.length; i++) {
if(style == Strophe.XHTML.css[i]) {
return true;
}
}
return false;
}
},
/** Function: addNamespace
* This function is used to extend the current namespaces in
* Strophe.NS. It takes a key and a value with the key being the
* name of the new namespace, with its actual value.
* For example:
* Strophe.addNamespace('PUBSUB', "http://jabber.org/protocol/pubsub");
*
* Parameters:
* (String) name - The name under which the namespace will be
* referenced under Strophe.NS
* (String) value - The actual namespace.
*/
addNamespace: function (name, value)
{
Strophe.NS[name] = value;
},
/** Constants: Connection Status Constants
* Connection status constants for use by the connection handler
* callback.
*
* Status.ERROR - An error has occurred
* Status.CONNECTING - The connection is currently being made
* Status.CONNFAIL - The connection attempt failed
* Status.AUTHENTICATING - The connection is authenticating
* Status.AUTHFAIL - The authentication attempt failed
* Status.CONNECTED - The connection has succeeded
* Status.DISCONNECTED - The connection has been terminated
* Status.DISCONNECTING - The connection is currently being terminated
* Status.ATTACHED - The connection has been attached
*/
Status: {
ERROR: 0,
CONNECTING: 1,
CONNFAIL: 2,
AUTHENTICATING: 3,
AUTHFAIL: 4,
CONNECTED: 5,
DISCONNECTED: 6,
DISCONNECTING: 7,
ATTACHED: 8
},
/** Constants: Log Level Constants
* Logging level indicators.
*
* LogLevel.DEBUG - Debug output
* LogLevel.INFO - Informational output
* LogLevel.WARN - Warnings
* LogLevel.ERROR - Errors
* LogLevel.FATAL - Fatal errors
*/
LogLevel: {
DEBUG: 0,
INFO: 1,
WARN: 2,
ERROR: 3,
FATAL: 4
},
/** PrivateConstants: DOM Element Type Constants
* DOM element types.
*
* ElementType.NORMAL - Normal element.
* ElementType.TEXT - Text data element.
* ElementType.FRAGMENT - XHTML fragment element.
*/
ElementType: {
NORMAL: 1,
TEXT: 3,
CDATA: 4,
FRAGMENT: 11
},
/** PrivateConstants: Timeout Values
* Timeout values for error states. These values are in seconds.
* These should not be changed unless you know exactly what you are
* doing.
*
* TIMEOUT - Timeout multiplier. A waiting request will be considered
* failed after Math.floor(TIMEOUT * wait) seconds have elapsed.
* This defaults to 1.1, and with default wait, 66 seconds.
* SECONDARY_TIMEOUT - Secondary timeout multiplier. In cases where
* Strophe can detect early failure, it will consider the request
* failed if it doesn't return after
* Math.floor(SECONDARY_TIMEOUT * wait) seconds have elapsed.
* This defaults to 0.1, and with default wait, 6 seconds.
*/
TIMEOUT: 1.1,
SECONDARY_TIMEOUT: 0.1,
/** Function: forEachChild
* Map a function over some or all child elements of a given element.
*
* This is a small convenience function for mapping a function over
* some or all of the children of an element. If elemName is null, all
* children will be passed to the function, otherwise only children
* whose tag names match elemName will be passed.
*
* Parameters:
* (XMLElement) elem - The element to operate on.
* (String) elemName - The child element tag name filter.
* (Function) func - The function to apply to each child. This
* function should take a single argument, a DOM element.
*/
forEachChild: function (elem, elemName, func)
{
var i, childNode;
for (i = 0; i < elem.childNodes.length; i++) {
childNode = elem.childNodes[i];
if (childNode.nodeType == Strophe.ElementType.NORMAL &&
(!elemName || this.isTagEqual(childNode, elemName))) {
func(childNode);
}
}
},
/** Function: isTagEqual
* Compare an element's tag name with a string.
*
* This function is case insensitive.
*
* Parameters:
* (XMLElement) el - A DOM element.
* (String) name - The element name.
*
* Returns:
* true if the element's tag name matches _el_, and false
* otherwise.
*/
isTagEqual: function (el, name)
{
return el.tagName.toLowerCase() == name.toLowerCase();
},
/** PrivateVariable: _xmlGenerator
* _Private_ variable that caches a DOM document to
* generate elements.
*/
_xmlGenerator: null,
/** PrivateFunction: _makeGenerator
* _Private_ function that creates a dummy XML DOM document to serve as
* an element and text node generator.
*/
_makeGenerator: function () {
var doc;
// IE9 does implement createDocument(); however, using it will cause the browser to leak memory on page unload.
// Here, we test for presence of createDocument() plus IE's proprietary documentMode attribute, which would be
// less than 10 in the case of IE9 and below.
if (document.implementation.createDocument === undefined ||
document.implementation.createDocument && document.documentMode && document.documentMode < 10) {
doc = this._getIEXmlDom();
doc.appendChild(doc.createElement('strophe'));
} else {
doc = document.implementation
.createDocument('jabber:client', 'strophe', null);
}
return doc;
},
/** Function: xmlGenerator
* Get the DOM document to generate elements.
*
* Returns:
* The currently used DOM document.
*/
xmlGenerator: function () {
if (!Strophe._xmlGenerator) {
Strophe._xmlGenerator = Strophe._makeGenerator();
}
return Strophe._xmlGenerator;
},
/** PrivateFunction: _getIEXmlDom
* Gets IE xml doc object
*
* Returns:
* A Microsoft XML DOM Object
* See Also:
* http://msdn.microsoft.com/en-us/library/ms757837%28VS.85%29.aspx
*/
_getIEXmlDom : function() {
var doc = null;
var docStrings = [
"Msxml2.DOMDocument.6.0",
"Msxml2.DOMDocument.5.0",
"Msxml2.DOMDocument.4.0",
"MSXML2.DOMDocument.3.0",
"MSXML2.DOMDocument",
"MSXML.DOMDocument",
"Microsoft.XMLDOM"
];
for (var d = 0; d < docStrings.length; d++) {
if (doc === null) {
try {
doc = new ActiveXObject(docStrings[d]);
} catch (e) {
doc = null;
}
} else {
break;
}
}
return doc;
},
/** Function: xmlElement
* Create an XML DOM element.
*
* This function creates an XML DOM element correctly across all
* implementations. Note that these are not HTML DOM elements, which
* aren't appropriate for XMPP stanzas.
*
* Parameters:
* (String) name - The name for the element.
* (Array|Object) attrs - An optional array or object containing
* key/value pairs to use as element attributes. The object should
* be in the format {'key': 'value'} or {key: 'value'}. The array
* should have the format [['key1', 'value1'], ['key2', 'value2']].
* (String) text - The text child data for the element.
*
* Returns:
* A new XML DOM element.
*/
xmlElement: function (name)
{
if (!name) { return null; }
var node = Strophe.xmlGenerator().createElement(name);
// FIXME: this should throw errors if args are the wrong type or
// there are more than two optional args
var a, i, k;
for (a = 1; a < arguments.length; a++) {
if (!arguments[a]) { continue; }
if (typeof(arguments[a]) == "string" ||
typeof(arguments[a]) == "number") {
node.appendChild(Strophe.xmlTextNode(arguments[a]));
} else if (typeof(arguments[a]) == "object" &&
typeof(arguments[a].sort) == "function") {
for (i = 0; i < arguments[a].length; i++) {
if (typeof(arguments[a][i]) == "object" &&
typeof(arguments[a][i].sort) == "function") {
node.setAttribute(arguments[a][i][0],
arguments[a][i][1]);
}
}
} else if (typeof(arguments[a]) == "object") {
for (k in arguments[a]) {
if (arguments[a].hasOwnProperty(k)) {
node.setAttribute(k, arguments[a][k]);
}
}
}
}
return node;
},
/* Function: xmlescape
* Excapes invalid xml characters.
*
* Parameters:
* (String) text - text to escape.
*
* Returns:
* Escaped text.
*/
xmlescape: function(text)
{
text = text.replace(/\&/g, "&amp;");
text = text.replace(/</g, "&lt;");
text = text.replace(/>/g, "&gt;");
text = text.replace(/'/g, "&apos;");
text = text.replace(/"/g, "&quot;");
return text;
},
/** Function: xmlTextNode
* Creates an XML DOM text node.
*
* Provides a cross implementation version of document.createTextNode.
*
* Parameters:
* (String) text - The content of the text node.
*
* Returns:
* A new XML DOM text node.
*/
xmlTextNode: function (text)
{
return Strophe.xmlGenerator().createTextNode(text);
},
/** Function: xmlHtmlNode
* Creates an XML DOM html node.
*
* Parameters:
* (String) html - The content of the html node.
*
* Returns:
* A new XML DOM text node.
*/
xmlHtmlNode: function (html)
{
//ensure text is escaped
if (window.DOMParser) {
parser = new DOMParser();
node = parser.parseFromString(html, "text/xml");
} else {
node = new ActiveXObject("Microsoft.XMLDOM");
node.async="false";
node.loadXML(html);
}
return node;
},
/** Function: getText
* Get the concatenation of all text children of an element.
*
* Parameters:
* (XMLElement) elem - A DOM element.
*
* Returns:
* A String with the concatenated text of all text element children.
*/
getText: function (elem)
{
if (!elem) { return null; }
var str = "";
if (elem.childNodes.length === 0 && elem.nodeType ==
Strophe.ElementType.TEXT) {
str += elem.nodeValue;
}
for (var i = 0; i < elem.childNodes.length; i++) {
if (elem.childNodes[i].nodeType == Strophe.ElementType.TEXT) {
str += elem.childNodes[i].nodeValue;
}
}
return Strophe.xmlescape(str);
},
/** Function: copyElement
* Copy an XML DOM element.
*
* This function copies a DOM element and all its descendants and returns
* the new copy.
*
* Parameters:
* (XMLElement) elem - A DOM element.
*
* Returns:
* A new, copied DOM element tree.
*/
copyElement: function (elem)
{
var i, el;
if (elem.nodeType == Strophe.ElementType.NORMAL) {
el = Strophe.xmlElement(elem.tagName);
for (i = 0; i < elem.attributes.length; i++) {
el.setAttribute(elem.attributes[i].nodeName.toLowerCase(),
elem.attributes[i].value);
}
for (i = 0; i < elem.childNodes.length; i++) {
el.appendChild(Strophe.copyElement(elem.childNodes[i]));
}
} else if (elem.nodeType == Strophe.ElementType.TEXT) {
el = Strophe.xmlGenerator().createTextNode(elem.nodeValue);
}
return el;
},
/** Function: createHtml
* Copy an HTML DOM element into an XML DOM.
*
* This function copies a DOM element and all its descendants and returns
* the new copy.
*
* Parameters:
* (HTMLElement) elem - A DOM element.
*
* Returns:
* A new, copied DOM element tree.
*/
createHtml: function (elem)
{
var i, el, j, tag, attribute, value, css, cssAttrs, attr, cssName, cssValue, children, child;
if (elem.nodeType == Strophe.ElementType.NORMAL) {
tag = elem.nodeName.toLowerCase();
if(Strophe.XHTML.validTag(tag)) {
try {
el = Strophe.xmlElement(tag);
for(i = 0; i < Strophe.XHTML.attributes[tag].length; i++) {
attribute = Strophe.XHTML.attributes[tag][i];
value = elem.getAttribute(attribute);
if(typeof value == 'undefined' || value === null || value === '' || value === false || value === 0) {
continue;
}
if(attribute == 'style' && typeof value == 'object') {
if(typeof value.cssText != 'undefined') {
value = value.cssText; // we're dealing with IE, need to get CSS out
}
}
// filter out invalid css styles
if(attribute == 'style') {
css = [];
cssAttrs = value.split(';');
for(j = 0; j < cssAttrs.length; j++) {
attr = cssAttrs[j].split(':');
cssName = attr[0].replace(/^\s*/, "").replace(/\s*$/, "").toLowerCase();
if(Strophe.XHTML.validCSS(cssName)) {
cssValue = attr[1].replace(/^\s*/, "").replace(/\s*$/, "");
css.push(cssName + ': ' + cssValue);
}
}
if(css.length > 0) {
value = css.join('; ');
el.setAttribute(attribute, value);
}
} else {
el.setAttribute(attribute, value);
}
}
for (i = 0; i < elem.childNodes.length; i++) {
el.appendChild(Strophe.createHtml(elem.childNodes[i]));
}
} catch(e) { // invalid elements
el = Strophe.xmlTextNode('');
}
} else {
el = Strophe.xmlGenerator().createDocumentFragment();
for (i = 0; i < elem.childNodes.length; i++) {
el.appendChild(Strophe.createHtml(elem.childNodes[i]));
}
}
} else if (elem.nodeType == Strophe.ElementType.FRAGMENT) {
el = Strophe.xmlGenerator().createDocumentFragment();
for (i = 0; i < elem.childNodes.length; i++) {
el.appendChild(Strophe.createHtml(elem.childNodes[i]));
}
} else if (elem.nodeType == Strophe.ElementType.TEXT) {
el = Strophe.xmlTextNode(elem.nodeValue);
}
return el;
},
/** Function: escapeNode
* Escape the node part (also called local part) of a JID.
*
* Parameters:
* (String) node - A node (or local part).
*
* Returns:
* An escaped node (or local part).
*/
escapeNode: function (node)
{
return node.replace(/^\s+|\s+$/g, '')
.replace(/\\/g, "\\5c")
.replace(/ /g, "\\20")
.replace(/\"/g, "\\22")
.replace(/\&/g, "\\26")
.replace(/\'/g, "\\27")
.replace(/\//g, "\\2f")
.replace(/:/g, "\\3a")
.replace(/</g, "\\3c")
.replace(/>/g, "\\3e")
.replace(/@/g, "\\40");
},
/** Function: unescapeNode
* Unescape a node part (also called local part) of a JID.
*
* Parameters:
* (String) node - A node (or local part).
*
* Returns:
* An unescaped node (or local part).
*/
unescapeNode: function (node)
{
return node.replace(/\\20/g, " ")
.replace(/\\22/g, '"')
.replace(/\\26/g, "&")
.replace(/\\27/g, "'")
.replace(/\\2f/g, "/")
.replace(/\\3a/g, ":")
.replace(/\\3c/g, "<")
.replace(/\\3e/g, ">")
.replace(/\\40/g, "@")
.replace(/\\5c/g, "\\");
},
/** Function: getNodeFromJid
* Get the node portion of a JID String.
*
* Parameters:
* (String) jid - A JID.
*
* Returns:
* A String containing the node.
*/
getNodeFromJid: function (jid)
{
if (jid.indexOf("@") < 0) { return null; }
return jid.split("@")[0];
},
/** Function: getDomainFromJid
* Get the domain portion of a JID String.
*
* Parameters:
* (String) jid - A JID.
*
* Returns:
* A String containing the domain.
*/
getDomainFromJid: function (jid)
{
var bare = Strophe.getBareJidFromJid(jid);
if (bare.indexOf("@") < 0) {
return bare;
} else {
var parts = bare.split("@");
parts.splice(0, 1);
return parts.join('@');
}
},
/** Function: getResourceFromJid
* Get the resource portion of a JID String.
*
* Parameters:
* (String) jid - A JID.
*
* Returns:
* A String containing the resource.
*/
getResourceFromJid: function (jid)
{
var s = jid.split("/");
if (s.length < 2) { return null; }
s.splice(0, 1);
return s.join('/');
},
/** Function: getBareJidFromJid
* Get the bare JID from a JID String.
*
* Parameters:
* (String) jid - A JID.
*
* Returns:
* A String containing the bare JID.
*/
getBareJidFromJid: function (jid)
{
return jid ? jid.split("/")[0] : null;
},
/** Function: log
* User overrideable logging function.
*
* This function is called whenever the Strophe library calls any
* of the logging functions. The default implementation of this
* function does nothing. If client code wishes to handle the logging
* messages, it should override this with
* > Strophe.log = function (level, msg) {
* > (user code here)
* > };
*
* Please note that data sent and received over the wire is logged
* via Strophe.Connection.rawInput() and Strophe.Connection.rawOutput().
*
* The different levels and their meanings are
*
* DEBUG - Messages useful for debugging purposes.
* INFO - Informational messages. This is mostly information like
* 'disconnect was called' or 'SASL auth succeeded'.
* WARN - Warnings about potential problems. This is mostly used
* to report transient connection errors like request timeouts.
* ERROR - Some error occurred.
* FATAL - A non-recoverable fatal error occurred.
*
* Parameters:
* (Integer) level - The log level of the log message. This will
* be one of the values in Strophe.LogLevel.
* (String) msg - The log message.
*/
log: function (level, msg)
{
return;
},
/** Function: debug
* Log a message at the Strophe.LogLevel.DEBUG level.
*
* Parameters:
* (String) msg - The log message.
*/
debug: function(msg)
{
this.log(this.LogLevel.DEBUG, msg);
},
/** Function: info
* Log a message at the Strophe.LogLevel.INFO level.
*
* Parameters:
* (String) msg - The log message.
*/
info: function (msg)
{
this.log(this.LogLevel.INFO, msg);
},
/** Function: warn
* Log a message at the Strophe.LogLevel.WARN level.
*
* Parameters:
* (String) msg - The log message.
*/
warn: function (msg)
{
this.log(this.LogLevel.WARN, msg);
},
/** Function: error
* Log a message at the Strophe.LogLevel.ERROR level.
*
* Parameters:
* (String) msg - The log message.
*/
error: function (msg)
{
this.log(this.LogLevel.ERROR, msg);
},
/** Function: fatal
* Log a message at the Strophe.LogLevel.FATAL level.
*
* Parameters:
* (String) msg - The log message.
*/
fatal: function (msg)
{
this.log(this.LogLevel.FATAL, msg);
},
/** Function: serialize
* Render a DOM element and all descendants to a String.
*
* Parameters:
* (XMLElement) elem - A DOM element.
*
* Returns:
* The serialized element tree as a String.
*/
serialize: function (elem)
{
var result;
if (!elem) { return null; }
if (typeof(elem.tree) === "function") {
elem = elem.tree();
}
var nodeName = elem.nodeName;
var i, child;
if (elem.getAttribute("_realname")) {
nodeName = elem.getAttribute("_realname");
}
result = "<" + nodeName;
for (i = 0; i < elem.attributes.length; i++) {
if(elem.attributes[i].nodeName != "_realname") {
result += " " + elem.attributes[i].nodeName.toLowerCase() +
"='" + elem.attributes[i].value
.replace(/&/g, "&amp;")
.replace(/\'/g, "&apos;")
.replace(/>/g, "&gt;")
.replace(/</g, "&lt;") + "'";
}
}
if (elem.childNodes.length > 0) {
result += ">";
for (i = 0; i < elem.childNodes.length; i++) {
child = elem.childNodes[i];
switch( child.nodeType ){
case Strophe.ElementType.NORMAL:
// normal element, so recurse
result += Strophe.serialize(child);
break;
case Strophe.ElementType.TEXT:
// text element to escape values
result += Strophe.xmlescape(child.nodeValue);
break;
case Strophe.ElementType.CDATA:
// cdata section so don't escape values
result += "<![CDATA["+child.nodeValue+"]]>";
}
}
result += "</" + nodeName + ">";
} else {
result += "/>";
}
return result;
},
/** PrivateVariable: _requestId
* _Private_ variable that keeps track of the request ids for
* connections.
*/
_requestId: 0,
/** PrivateVariable: Strophe.connectionPlugins
* _Private_ variable Used to store plugin names that need
* initialization on Strophe.Connection construction.
*/
_connectionPlugins: {},
/** Function: addConnectionPlugin
* Extends the Strophe.Connection object with the given plugin.
*
* Parameters:
* (String) name - The name of the extension.
* (Object) ptype - The plugin's prototype.
*/
addConnectionPlugin: function (name, ptype)
{
Strophe._connectionPlugins[name] = ptype;
}
};
/** Class: Strophe.Builder
* XML DOM builder.
*
* This object provides an interface similar to JQuery but for building
* DOM element easily and rapidly. All the functions except for toString()
* and tree() return the object, so calls can be chained. Here's an
* example using the $iq() builder helper.
* > $iq({to: 'you', from: 'me', type: 'get', id: '1'})
* > .c('query', {xmlns: 'strophe:example'})
* > .c('example')
* > .toString()
* The above generates this XML fragment
* > <iq to='you' from='me' type='get' id='1'>
* > <query xmlns='strophe:example'>
* > <example/>
* > </query>
* > </iq>
* The corresponding DOM manipulations to get a similar fragment would be
* a lot more tedious and probably involve several helper variables.
*
* Since adding children makes new operations operate on the child, up()
* is provided to traverse up the tree. To add two children, do
* > builder.c('child1', ...).up().c('child2', ...)
* The next operation on the Builder will be relative to the second child.
*/
/** Constructor: Strophe.Builder
* Create a Strophe.Builder object.
*
* The attributes should be passed in object notation. For example
* > var b = new Builder('message', {to: 'you', from: 'me'});
* or
* > var b = new Builder('messsage', {'xml:lang': 'en'});
*
* Parameters:
* (String) name - The name of the root element.
* (Object) attrs - The attributes for the root element in object notation.
*
* Returns:
* A new Strophe.Builder.
*/
Strophe.Builder = function (name, attrs)
{
// Set correct namespace for jabber:client elements
if (name == "presence" || name == "message" || name == "iq") {
if (attrs && !attrs.xmlns) {
attrs.xmlns = Strophe.NS.CLIENT;
} else if (!attrs) {
attrs = {xmlns: Strophe.NS.CLIENT};
}
}
// Holds the tree being built.
this.nodeTree = Strophe.xmlElement(name, attrs);
// Points to the current operation node.
this.node = this.nodeTree;
};
Strophe.Builder.prototype = {
/** Function: tree
* Return the DOM tree.
*
* This function returns the current DOM tree as an element object. This
* is suitable for passing to functions like Strophe.Connection.send().
*
* Returns:
* The DOM tree as a element object.
*/
tree: function ()
{
return this.nodeTree;
},
/** Function: toString
* Serialize the DOM tree to a String.
*
* This function returns a string serialization of the current DOM
* tree. It is often used internally to pass data to a
* Strophe.Request object.
*
* Returns:
* The serialized DOM tree in a String.
*/
toString: function ()
{
return Strophe.serialize(this.nodeTree);
},
/** Function: up
* Make the current parent element the new current element.
*
* This function is often used after c() to traverse back up the tree.
* For example, to add two children to the same element
* > builder.c('child1', {}).up().c('child2', {});
*
* Returns:
* The Stophe.Builder object.
*/
up: function ()
{
this.node = this.node.parentNode;
return this;
},
/** Function: attrs
* Add or modify attributes of the current element.
*
* The attributes should be passed in object notation. This function
* does not move the current element pointer.
*
* Parameters:
* (Object) moreattrs - The attributes to add/modify in object notation.
*
* Returns:
* The Strophe.Builder object.
*/
attrs: function (moreattrs)
{
for (var k in moreattrs) {
if (moreattrs.hasOwnProperty(k)) {
this.node.setAttribute(k, moreattrs[k]);
}
}
return this;
},
/** Function: c
* Add a child to the current element and make it the new current
* element.
*
* This function moves the current element pointer to the child,
* unless text is provided. If you need to add another child, it
* is necessary to use up() to go back to the parent in the tree.
*
* Parameters:
* (String) name - The name of the child.
* (Object) attrs - The attributes of the child in object notation.
* (String) text - The text to add to the child.
*
* Returns:
* The Strophe.Builder object.
*/
c: function (name, attrs, text)
{
var child = Strophe.xmlElement(name, attrs, text);
this.node.appendChild(child);
if (!text) {
this.node = child;
}
return this;
},
/** Function: cnode
* Add a child to the current element and make it the new current
* element.
*
* This function is the same as c() except that instead of using a
* name and an attributes object to create the child it uses an
* existing DOM element object.
*
* Parameters:
* (XMLElement) elem - A DOM element.
*
* Returns:
* The Strophe.Builder object.
*/
cnode: function (elem)
{
var xmlGen = Strophe.xmlGenerator();
try {
var impNode = (xmlGen.importNode !== undefined);
}
catch (e) {
var impNode = false;
}
var newElem = impNode ?
xmlGen.importNode(elem, true) :
Strophe.copyElement(elem);
this.node.appendChild(newElem);
this.node = newElem;
return this;
},
/** Function: t
* Add a child text element.
*
* This *does not* make the child the new current element since there
* are no children of text elements.
*
* Parameters:
* (String) text - The text data to append to the current element.
*
* Returns:
* The Strophe.Builder object.
*/
t: function (text)
{
var child = Strophe.xmlTextNode(text);
this.node.appendChild(child);
return this;
},
/** Function: h
* Replace current element contents with the HTML passed in.
*
* This *does not* make the child the new current element
*
* Parameters:
* (String) html - The html to insert as contents of current element.
*
* Returns:
* The Strophe.Builder object.
*/
h: function (html)
{
var fragment = document.createElement('body');
// force the browser to try and fix any invalid HTML tags
fragment.innerHTML = html;
// copy cleaned html into an xml dom
var xhtml = Strophe.createHtml(fragment);
while(xhtml.childNodes.length > 0) {
this.node.appendChild(xhtml.childNodes[0]);
}
return this;
}
};
/** PrivateClass: Strophe.Handler
* _Private_ helper class for managing stanza handlers.
*
* A Strophe.Handler encapsulates a user provided callback function to be
* executed when matching stanzas are received by the connection.
* Handlers can be either one-off or persistant depending on their
* return value. Returning true will cause a Handler to remain active, and
* returning false will remove the Handler.
*
* Users will not use Strophe.Handler objects directly, but instead they
* will use Strophe.Connection.addHandler() and
* Strophe.Connection.deleteHandler().
*/
/** PrivateConstructor: Strophe.Handler
* Create and initialize a new Strophe.Handler.
*
* Parameters:
* (Function) handler - A function to be executed when the handler is run.
* (String) ns - The namespace to match.
* (String) name - The element name to match.
* (String) type - The element type to match.
* (String) id - The element id attribute to match.
* (String) from - The element from attribute to match.
* (Object) options - Handler options
*
* Returns:
* A new Strophe.Handler object.
*/
Strophe.Handler = function (handler, ns, name, type, id, from, options)
{
this.handler = handler;
this.ns = ns;
this.name = name;
this.type = type;
this.id = id;
this.options = options || {matchbare: false};
// default matchBare to false if undefined
if (!this.options.matchBare) {
this.options.matchBare = false;
}
if (this.options.matchBare) {
this.from = from ? Strophe.getBareJidFromJid(from) : null;
} else {
this.from = from;
}
// whether the handler is a user handler or a system handler
this.user = true;
};
Strophe.Handler.prototype = {
/** PrivateFunction: isMatch
* Tests if a stanza matches the Strophe.Handler.
*
* Parameters:
* (XMLElement) elem - The XML element to test.
*
* Returns:
* true if the stanza matches and false otherwise.
*/
isMatch: function (elem)
{
var nsMatch;
var from = null;
if (this.options.matchBare) {
from = Strophe.getBareJidFromJid(elem.getAttribute('from'));
} else {
from = elem.getAttribute('from');
}
nsMatch = false;
if (!this.ns) {
nsMatch = true;
} else {
var that = this;
Strophe.forEachChild(elem, null, function (elem) {
if (elem.getAttribute("xmlns") == that.ns) {
nsMatch = true;
}
});
nsMatch = nsMatch || elem.getAttribute("xmlns") == this.ns;
}
if (nsMatch &&
(!this.name || Strophe.isTagEqual(elem, this.name)) &&
(!this.type || elem.getAttribute("type") == this.type) &&
(!this.id || elem.getAttribute("id") == this.id) &&
(!this.from || from == this.from)) {
return true;
}
return false;
},
/** PrivateFunction: run
* Run the callback on a matching stanza.
*
* Parameters:
* (XMLElement) elem - The DOM element that triggered the
* Strophe.Handler.
*
* Returns:
* A boolean indicating if the handler should remain active.
*/
run: function (elem)
{
var result = null;
try {
result = this.handler(elem);
} catch (e) {
if (e.sourceURL) {
Strophe.fatal("error: " + this.handler +
" " + e.sourceURL + ":" +
e.line + " - " + e.name + ": " + e.message);
} else if (e.fileName) {
if (typeof(console) != "undefined") {
console.trace();
console.error(this.handler, " - error - ", e, e.message);
}
Strophe.fatal("error: " + this.handler + " " +
e.fileName + ":" + e.lineNumber + " - " +
e.name + ": " + e.message);
} else {
Strophe.fatal("error: " + e.message + "\n" + e.stack);
}
throw e;
}
return result;
},
/** PrivateFunction: toString
* Get a String representation of the Strophe.Handler object.
*
* Returns:
* A String.
*/
toString: function ()
{
return "{Handler: " + this.handler + "(" + this.name + "," +
this.id + "," + this.ns + ")}";
}
};
/** PrivateClass: Strophe.TimedHandler
* _Private_ helper class for managing timed handlers.
*
* A Strophe.TimedHandler encapsulates a user provided callback that
* should be called after a certain period of time or at regular
* intervals. The return value of the callback determines whether the
* Strophe.TimedHandler will continue to fire.
*
* Users will not use Strophe.TimedHandler objects directly, but instead
* they will use Strophe.Connection.addTimedHandler() and
* Strophe.Connection.deleteTimedHandler().
*/
/** PrivateConstructor: Strophe.TimedHandler
* Create and initialize a new Strophe.TimedHandler object.
*
* Parameters:
* (Integer) period - The number of milliseconds to wait before the
* handler is called.
* (Function) handler - The callback to run when the handler fires. This
* function should take no arguments.
*
* Returns:
* A new Strophe.TimedHandler object.
*/
Strophe.TimedHandler = function (period, handler)
{
this.period = period;
this.handler = handler;
this.lastCalled = new Date().getTime();
this.user = true;
};
Strophe.TimedHandler.prototype = {
/** PrivateFunction: run
* Run the callback for the Strophe.TimedHandler.
*
* Returns:
* true if the Strophe.TimedHandler should be called again, and false
* otherwise.
*/
run: function ()
{
this.lastCalled = new Date().getTime();
return this.handler();
},
/** PrivateFunction: reset
* Reset the last called time for the Strophe.TimedHandler.
*/
reset: function ()
{
this.lastCalled = new Date().getTime();
},
/** PrivateFunction: toString
* Get a string representation of the Strophe.TimedHandler object.
*
* Returns:
* The string representation.
*/
toString: function ()
{
return "{TimedHandler: " + this.handler + "(" + this.period +")}";
}
};
/** PrivateClass: Strophe.Request
* _Private_ helper class that provides a cross implementation abstraction
* for a BOSH related XMLHttpRequest.
*
* The Strophe.Request class is used internally to encapsulate BOSH request
* information. It is not meant to be used from user's code.
*/
/** PrivateConstructor: Strophe.Request
* Create and initialize a new Strophe.Request object.
*
* Parameters:
* (XMLElement) elem - The XML data to be sent in the request.
* (Function) func - The function that will be called when the
* XMLHttpRequest readyState changes.
* (Integer) rid - The BOSH rid attribute associated with this request.
* (Integer) sends - The number of times this same request has been
* sent.
*/
Strophe.Request = function (elem, func, rid, sends)
{
this.id = ++Strophe._requestId;
this.xmlData = elem;
this.data = Strophe.serialize(elem);
// save original function in case we need to make a new request
// from this one.
this.origFunc = func;
this.func = func;
this.rid = rid;
this.date = NaN;
this.sends = sends || 0;
this.abort = false;
this.dead = null;
this.age = function () {
if (!this.date) { return 0; }
var now = new Date();
return (now - this.date) / 1000;
};
this.timeDead = function () {
if (!this.dead) { return 0; }
var now = new Date();
return (now - this.dead) / 1000;
};
this.xhr = this._newXHR();
};
Strophe.Request.prototype = {
/** PrivateFunction: getResponse
* Get a response from the underlying XMLHttpRequest.
*
* This function attempts to get a response from the request and checks
* for errors.
*
* Throws:
* "parsererror" - A parser error occured.
*
* Returns:
* The DOM element tree of the response.
*/
getResponse: function ()
{
var node = null;
if (this.xhr.responseXML && this.xhr.responseXML.documentElement) {
node = this.xhr.responseXML.documentElement;
if (node.tagName == "parsererror") {
Strophe.error("invalid response received");
Strophe.error("responseText: " + this.xhr.responseText);
Strophe.error("responseXML: " +
Strophe.serialize(this.xhr.responseXML));
throw "parsererror";
}
} else if (this.xhr.responseText) {
Strophe.error("invalid response received");
Strophe.error("responseText: " + this.xhr.responseText);
Strophe.error("responseXML: " +
Strophe.serialize(this.xhr.responseXML));
}
return node;
},
/** PrivateFunction: _newXHR
* _Private_ helper function to create XMLHttpRequests.
*
* This function creates XMLHttpRequests across all implementations.
*
* Returns:
* A new XMLHttpRequest.
*/
_newXHR: function ()
{
var xhr = null;
if (window.XMLHttpRequest) {
xhr = new XMLHttpRequest();
if (xhr.overrideMimeType) {
xhr.overrideMimeType("text/xml");
}
} else if (window.ActiveXObject) {
xhr = new ActiveXObject("Microsoft.XMLHTTP");
}
// use Function.bind() to prepend ourselves as an argument
xhr.onreadystatechange = this.func.bind(null, this);
return xhr;
}
};
/** Class: Strophe.Connection
* XMPP Connection manager.
*
* This class is the main part of Strophe. It manages a BOSH connection
* to an XMPP server and dispatches events to the user callbacks as
* data arrives. It supports SASL PLAIN, SASL DIGEST-MD5, and legacy
* authentication.
*
* After creating a Strophe.Connection object, the user will typically
* call connect() with a user supplied callback to handle connection level
* events like authentication failure, disconnection, or connection
* complete.
*
* The user will also have several event handlers defined by using
* addHandler() and addTimedHandler(). These will allow the user code to
* respond to interesting stanzas or do something periodically with the
* connection. These handlers will be active once authentication is
* finished.
*
* To send data to the connection, use send().
*/
/** Constructor: Strophe.Connection
* Create and initialize a Strophe.Connection object.
*
* Parameters:
* (String) service - The BOSH service URL.
*
* Returns:
* A new Strophe.Connection object.
*/
Strophe.Connection = function (service)
{
/* The path to the httpbind service. */
this.service = service;
/* The connected JID. */
this.jid = "";
/* the JIDs domain */
this.domain = null;
/* request id for body tags */
this.rid = Math.floor(Math.random() * 4294967295);
/* The current session ID. */
this.sid = null;
this.streamId = null;
/* stream:features */
this.features = null;
// SASL
this._sasl_data = [];
this.do_session = false;
this.do_bind = false;
// handler lists
this.timedHandlers = [];
this.handlers = [];
this.removeTimeds = [];
this.removeHandlers = [];
this.addTimeds = [];
this.addHandlers = [];
this._authentication = {};
this._idleTimeout = null;
this._disconnectTimeout = null;
this.do_authentication = true;
this.authenticated = false;
this.disconnecting = false;
this.connected = false;
this.errors = 0;
this.paused = false;
// default BOSH values
this.hold = 1;
this.wait = 60;
this.window = 5;
this._data = [];
this._requests = [];
this._uniqueId = Math.round(Math.random() * 10000);
this._sasl_success_handler = null;
this._sasl_failure_handler = null;
this._sasl_challenge_handler = null;
// Max retries before disconnecting
this.maxRetries = 5;
// setup onIdle callback every 1/10th of a second
this._idleTimeout = setTimeout(this._onIdle.bind(this), 100);
// initialize plugins
for (var k in Strophe._connectionPlugins) {
if (Strophe._connectionPlugins.hasOwnProperty(k)) {
var ptype = Strophe._connectionPlugins[k];
// jslint complaints about the below line, but this is fine
var F = function () {};
F.prototype = ptype;
this[k] = new F();
this[k].init(this);
}
}
};
Strophe.Connection.prototype = {
/** Function: reset
* Reset the connection.
*
* This function should be called after a connection is disconnected
* before that connection is reused.
*/
reset: function ()
{
this.rid = Math.floor(Math.random() * 4294967295);
this.sid = null;
this.streamId = null;
// SASL
this.do_session = false;
this.do_bind = false;
// handler lists
this.timedHandlers = [];
this.handlers = [];
this.removeTimeds = [];
this.removeHandlers = [];
this.addTimeds = [];
this.addHandlers = [];
this._authentication = {};
this.authenticated = false;
this.disconnecting = false;
this.connected = false;
this.errors = 0;
this._requests = [];
this._uniqueId = Math.round(Math.random()*10000);
},
/** Function: pause
* Pause the request manager.
*
* This will prevent Strophe from sending any more requests to the
* server. This is very useful for temporarily pausing while a lot
* of send() calls are happening quickly. This causes Strophe to
* send the data in a single request, saving many request trips.
*/
pause: function ()
{
this.paused = true;
},
/** Function: resume
* Resume the request manager.
*
* This resumes after pause() has been called.
*/
resume: function ()
{
this.paused = false;
},
/** Function: getUniqueId
* Generate a unique ID for use in <iq/> elements.
*
* All <iq/> stanzas are required to have unique id attributes. This
* function makes creating these easy. Each connection instance has
* a counter which starts from zero, and the value of this counter
* plus a colon followed by the suffix becomes the unique id. If no
* suffix is supplied, the counter is used as the unique id.
*
* Suffixes are used to make debugging easier when reading the stream
* data, and their use is recommended. The counter resets to 0 for
* every new connection for the same reason. For connections to the
* same server that authenticate the same way, all the ids should be
* the same, which makes it easy to see changes. This is useful for
* automated testing as well.
*
* Parameters:
* (String) suffix - A optional suffix to append to the id.
*
* Returns:
* A unique string to be used for the id attribute.
*/
getUniqueId: function (suffix)
{
if (typeof(suffix) == "string" || typeof(suffix) == "number") {
return ++this._uniqueId + ":" + suffix;
} else {
return ++this._uniqueId + "";
}
},
/** Function: connect
* Starts the connection process.
*
* As the connection process proceeds, the user supplied callback will
* be triggered multiple times with status updates. The callback
* should take two arguments - the status code and the error condition.
*
* The status code will be one of the values in the Strophe.Status
* constants. The error condition will be one of the conditions
* defined in RFC 3920 or the condition 'strophe-parsererror'.
*
* Please see XEP 124 for a more detailed explanation of the optional
* parameters below.
*
* Parameters:
* (String) jid - The user's JID. This may be a bare JID,
* or a full JID. If a node is not supplied, SASL ANONYMOUS
* authentication will be attempted.
* (String) pass - The user's password.
* (Function) callback - The connect callback function.
* (Integer) wait - The optional HTTPBIND wait value. This is the
* time the server will wait before returning an empty result for
* a request. The default setting of 60 seconds is recommended.
* (Integer) hold - The optional HTTPBIND hold value. This is the
* number of connections the server will hold at one time. This
* should almost always be set to 1 (the default).
* (String) route
*/
connect: function (jid, pass, callback, wait, hold, route)
{
this.jid = jid;
this.pass = pass;
this.connect_callback = callback;
this.disconnecting = false;
this.connected = false;
this.authenticated = false;
this.errors = 0;
this.wait = wait || this.wait;
this.hold = hold || this.hold;
// parse jid for domain and resource
this.domain = this.domain || Strophe.getDomainFromJid(this.jid);
// build the body tag
var body = this._buildBody().attrs({
to: this.domain,
"xml:lang": "en",
wait: this.wait,
hold: this.hold,
content: "text/xml; charset=utf-8",
ver: "1.6",
"xmpp:version": "1.0",
"xmlns:xmpp": Strophe.NS.BOSH
});
if(route){
body.attrs({
route: route
});
}
this._changeConnectStatus(Strophe.Status.CONNECTING, null);
var _connect_cb = this._connect_callback || this._connect_cb;
this._connect_callback = null;
this._requests.push(
new Strophe.Request(body.tree(),
this._onRequestStateChange.bind(
this, _connect_cb.bind(this)),
body.tree().getAttribute("rid")));
this._throttledRequestHandler();
},
/** Function: attach
* Attach to an already created and authenticated BOSH session.
*
* This function is provided to allow Strophe to attach to BOSH
* sessions which have been created externally, perhaps by a Web
* application. This is often used to support auto-login type features
* without putting user credentials into the page.
*
* Parameters:
* (String) jid - The full JID that is bound by the session.
* (String) sid - The SID of the BOSH session.
* (String) rid - The current RID of the BOSH session. This RID
* will be used by the next request.
* (Function) callback The connect callback function.
* (Integer) wait - The optional HTTPBIND wait value. This is the
* time the server will wait before returning an empty result for
* a request. The default setting of 60 seconds is recommended.
* Other settings will require tweaks to the Strophe.TIMEOUT value.
* (Integer) hold - The optional HTTPBIND hold value. This is the
* number of connections the server will hold at one time. This
* should almost always be set to 1 (the default).
* (Integer) wind - The optional HTTBIND window value. This is the
* allowed range of request ids that are valid. The default is 5.
*/
attach: function (jid, sid, rid, callback, wait, hold, wind)
{
this.jid = jid;
this.sid = sid;
this.rid = rid;
this.connect_callback = callback;
this.domain = Strophe.getDomainFromJid(this.jid);
this.authenticated = true;
this.connected = true;
this.wait = wait || this.wait;
this.hold = hold || this.hold;
this.window = wind || this.window;
this._changeConnectStatus(Strophe.Status.ATTACHED, null);
},
/** Function: xmlInput
* User overrideable function that receives XML data coming into the
* connection.
*
* The default function does nothing. User code can override this with
* > Strophe.Connection.xmlInput = function (elem) {
* > (user code)
* > };
*
* Parameters:
* (XMLElement) elem - The XML data received by the connection.
*/
xmlInput: function (elem)
{
return;
},
/** Function: xmlOutput
* User overrideable function that receives XML data sent to the
* connection.
*
* The default function does nothing. User code can override this with
* > Strophe.Connection.xmlOutput = function (elem) {
* > (user code)
* > };
*
* Parameters:
* (XMLElement) elem - The XMLdata sent by the connection.
*/
xmlOutput: function (elem)
{
return;
},
/** Function: rawInput
* User overrideable function that receives raw data coming into the
* connection.
*
* The default function does nothing. User code can override this with
* > Strophe.Connection.rawInput = function (data) {
* > (user code)
* > };
*
* Parameters:
* (String) data - The data received by the connection.
*/
rawInput: function (data)
{
return;
},
/** Function: rawOutput
* User overrideable function that receives raw data sent to the
* connection.
*
* The default function does nothing. User code can override this with
* > Strophe.Connection.rawOutput = function (data) {
* > (user code)
* > };
*
* Parameters:
* (String) data - The data sent by the connection.
*/
rawOutput: function (data)
{
return;
},
/** Function: send
* Send a stanza.
*
* This function is called to push data onto the send queue to
* go out over the wire. Whenever a request is sent to the BOSH
* server, all pending data is sent and the queue is flushed.
*
* Parameters:
* (XMLElement |
* [XMLElement] |
* Strophe.Builder) elem - The stanza to send.
*/
send: function (elem)
{
if (elem === null) { return ; }
if (typeof(elem.sort) === "function") {
for (var i = 0; i < elem.length; i++) {
this._queueData(elem[i]);
}
} else if (typeof(elem.tree) === "function") {
this._queueData(elem.tree());
} else {
this._queueData(elem);
}
this._throttledRequestHandler();
clearTimeout(this._idleTimeout);
this._idleTimeout = setTimeout(this._onIdle.bind(this), 100);
},
/** Function: flush
* Immediately send any pending outgoing data.
*
* Normally send() queues outgoing data until the next idle period
* (100ms), which optimizes network use in the common cases when
* several send()s are called in succession. flush() can be used to
* immediately send all pending data.
*/
flush: function ()
{
// cancel the pending idle period and run the idle function
// immediately
clearTimeout(this._idleTimeout);
this._onIdle();
},
/** Function: sendIQ
* Helper function to send IQ stanzas.
*
* Parameters:
* (XMLElement) elem - The stanza to send.
* (Function) callback - The callback function for a successful request.
* (Function) errback - The callback function for a failed or timed
* out request. On timeout, the stanza will be null.
* (Integer) timeout - The time specified in milliseconds for a
* timeout to occur.
*
* Returns:
* The id used to send the IQ.
*/
sendIQ: function(elem, callback, errback, timeout) {
var timeoutHandler = null;
var that = this;
if (typeof(elem.tree) === "function") {
elem = elem.tree();
}
var id = elem.getAttribute('id');
// inject id if not found
if (!id) {
id = this.getUniqueId("sendIQ");
elem.setAttribute("id", id);
}
var handler = this.addHandler(function (stanza) {
// remove timeout handler if there is one
if (timeoutHandler) {
that.deleteTimedHandler(timeoutHandler);
}
var iqtype = stanza.getAttribute('type');
if (iqtype == 'result') {
if (callback) {
callback(stanza);
}
} else if (iqtype == 'error') {
if (errback) {
errback(stanza);
}
} else {
throw {
name: "StropheError",
message: "Got bad IQ type of " + iqtype
};
}
}, null, 'iq', null, id);
// if timeout specified, setup timeout handler.
if (timeout) {
timeoutHandler = this.addTimedHandler(timeout, function () {
// get rid of normal handler
that.deleteHandler(handler);
// call errback on timeout with null stanza
if (errback) {
errback(null);
}
return false;
});
}
this.send(elem);
return id;
},
/** PrivateFunction: _queueData
* Queue outgoing data for later sending. Also ensures that the data
* is a DOMElement.
*/
_queueData: function (element) {
if (element === null ||
!element.tagName ||
!element.childNodes) {
throw {
name: "StropheError",
message: "Cannot queue non-DOMElement."
};
}
this._data.push(element);
},
/** PrivateFunction: _sendRestart
* Send an xmpp:restart stanza.
*/
_sendRestart: function ()
{
this._data.push("restart");
this._throttledRequestHandler();
clearTimeout(this._idleTimeout);
this._idleTimeout = setTimeout(this._onIdle.bind(this), 100);
},
/** Function: addTimedHandler
* Add a timed handler to the connection.
*
* This function adds a timed handler. The provided handler will
* be called every period milliseconds until it returns false,
* the connection is terminated, or the handler is removed. Handlers
* that wish to continue being invoked should return true.
*
* Because of method binding it is necessary to save the result of
* this function if you wish to remove a handler with
* deleteTimedHandler().
*
* Note that user handlers are not active until authentication is
* successful.
*
* Parameters:
* (Integer) period - The period of the handler.
* (Function) handler - The callback function.
*
* Returns:
* A reference to the handler that can be used to remove it.
*/
addTimedHandler: function (period, handler)
{
var thand = new Strophe.TimedHandler(period, handler);
this.addTimeds.push(thand);
return thand;
},
/** Function: deleteTimedHandler
* Delete a timed handler for a connection.
*
* This function removes a timed handler from the connection. The
* handRef parameter is *not* the function passed to addTimedHandler(),
* but is the reference returned from addTimedHandler().
*
* Parameters:
* (Strophe.TimedHandler) handRef - The handler reference.
*/
deleteTimedHandler: function (handRef)
{
// this must be done in the Idle loop so that we don't change
// the handlers during iteration
this.removeTimeds.push(handRef);
},
/** Function: addHandler
* Add a stanza handler for the connection.
*
* This function adds a stanza handler to the connection. The
* handler callback will be called for any stanza that matches
* the parameters. Note that if multiple parameters are supplied,
* they must all match for the handler to be invoked.
*
* The handler will receive the stanza that triggered it as its argument.
* The handler should return true if it is to be invoked again;
* returning false will remove the handler after it returns.
*
* As a convenience, the ns parameters applies to the top level element
* and also any of its immediate children. This is primarily to make
* matching /iq/query elements easy.
*
* The options argument contains handler matching flags that affect how
* matches are determined. Currently the only flag is matchBare (a
* boolean). When matchBare is true, the from parameter and the from
* attribute on the stanza will be matched as bare JIDs instead of
* full JIDs. To use this, pass {matchBare: true} as the value of
* options. The default value for matchBare is false.
*
* The return value should be saved if you wish to remove the handler
* with deleteHandler().
*
* Parameters:
* (Function) handler - The user callback.
* (String) ns - The namespace to match.
* (String) name - The stanza name to match.
* (String) type - The stanza type attribute to match.
* (String) id - The stanza id attribute to match.
* (String) from - The stanza from attribute to match.
* (String) options - The handler options
*
* Returns:
* A reference to the handler that can be used to remove it.
*/
addHandler: function (handler, ns, name, type, id, from, options)
{
var hand = new Strophe.Handler(handler, ns, name, type, id, from, options);
this.addHandlers.push(hand);
return hand;
},
/** Function: deleteHandler
* Delete a stanza handler for a connection.
*
* This function removes a stanza handler from the connection. The
* handRef parameter is *not* the function passed to addHandler(),
* but is the reference returned from addHandler().
*
* Parameters:
* (Strophe.Handler) handRef - The handler reference.
*/
deleteHandler: function (handRef)
{
// this must be done in the Idle loop so that we don't change
// the handlers during iteration
this.removeHandlers.push(handRef);
},
/** Function: disconnect
* Start the graceful disconnection process.
*
* This function starts the disconnection process. This process starts
* by sending unavailable presence and sending BOSH body of type
* terminate. A timeout handler makes sure that disconnection happens
* even if the BOSH server does not respond.
*
* The user supplied connection callback will be notified of the
* progress as this process happens.
*
* Parameters:
* (String) reason - The reason the disconnect is occuring.
*/
disconnect: function (reason)
{
this._changeConnectStatus(Strophe.Status.DISCONNECTING, reason);
Strophe.info("Disconnect was called because: " + reason);
if (this.connected) {
// setup timeout handler
this._disconnectTimeout = this._addSysTimedHandler(
3000, this._onDisconnectTimeout.bind(this));
this._sendTerminate();
}
},
/** PrivateFunction: _changeConnectStatus
* _Private_ helper function that makes sure plugins and the user's
* callback are notified of connection status changes.
*
* Parameters:
* (Integer) status - the new connection status, one of the values
* in Strophe.Status
* (String) condition - the error condition or null
*/
_changeConnectStatus: function (status, condition)
{
// notify all plugins listening for status changes
for (var k in Strophe._connectionPlugins) {
if (Strophe._connectionPlugins.hasOwnProperty(k)) {
var plugin = this[k];
if (plugin.statusChanged) {
try {
plugin.statusChanged(status, condition);
} catch (err) {
Strophe.error("" + k + " plugin caused an exception " +
"changing status: " + err);
}
}
}
}
// notify the user's callback
if (this.connect_callback) {
try {
this.connect_callback(status, condition);
} catch (e) {
Strophe.error("User connection callback caused an " +
"exception: " + e);
}
}
},
/** PrivateFunction: _buildBody
* _Private_ helper function to generate the <body/> wrapper for BOSH.
*
* Returns:
* A Strophe.Builder with a <body/> element.
*/
_buildBody: function ()
{
var bodyWrap = $build('body', {
rid: this.rid++,
xmlns: Strophe.NS.HTTPBIND
});
if (this.sid !== null) {
bodyWrap.attrs({sid: this.sid});
}
return bodyWrap;
},
/** PrivateFunction: _removeRequest
* _Private_ function to remove a request from the queue.
*
* Parameters:
* (Strophe.Request) req - The request to remove.
*/
_removeRequest: function (req)
{
Strophe.debug("removing request");
var i;
for (i = this._requests.length - 1; i >= 0; i--) {
if (req == this._requests[i]) {
this._requests.splice(i, 1);
}
}
// IE6 fails on setting to null, so set to empty function
req.xhr.onreadystatechange = function () {};
this._throttledRequestHandler();
},
/** PrivateFunction: _restartRequest
* _Private_ function to restart a request that is presumed dead.
*
* Parameters:
* (Integer) i - The index of the request in the queue.
*/
_restartRequest: function (i)
{
var req = this._requests[i];
if (req.dead === null) {
req.dead = new Date();
}
this._processRequest(i);
},
/** PrivateFunction: _processRequest
* _Private_ function to process a request in the queue.
*
* This function takes requests off the queue and sends them and
* restarts dead requests.
*
* Parameters:
* (Integer) i - The index of the request in the queue.
*/
_processRequest: function (i)
{
var req = this._requests[i];
var reqStatus = -1;
try {
if (req.xhr.readyState == 4) {
reqStatus = req.xhr.status;
}
} catch (e) {
Strophe.error("caught an error in _requests[" + i +
"], reqStatus: " + reqStatus);
}
if (typeof(reqStatus) == "undefined") {
reqStatus = -1;
}
// make sure we limit the number of retries
if (req.sends > this.maxRetries) {
this._onDisconnectTimeout();
return;
}
var time_elapsed = req.age();
var primaryTimeout = (!isNaN(time_elapsed) &&
time_elapsed > Math.floor(Strophe.TIMEOUT * this.wait));
var secondaryTimeout = (req.dead !== null &&
req.timeDead() > Math.floor(Strophe.SECONDARY_TIMEOUT * this.wait));
var requestCompletedWithServerError = (req.xhr.readyState == 4 &&
(reqStatus < 1 ||
reqStatus >= 500));
if (primaryTimeout || secondaryTimeout ||
requestCompletedWithServerError) {
if (secondaryTimeout) {
Strophe.error("Request " +
this._requests[i].id +
" timed out (secondary), restarting");
}
req.abort = true;
req.xhr.abort();
// setting to null fails on IE6, so set to empty function
req.xhr.onreadystatechange = function () {};
this._requests[i] = new Strophe.Request(req.xmlData,
req.origFunc,
req.rid,
req.sends);
req = this._requests[i];
}
if (req.xhr.readyState === 0) {
Strophe.debug("request id " + req.id +
"." + req.sends + " posting");
try {
req.xhr.open("POST", this.service, true);
} catch (e2) {
Strophe.error("XHR open failed.");
if (!this.connected) {
this._changeConnectStatus(Strophe.Status.CONNFAIL,
"bad-service");
}
this.disconnect();
return;
}
// Fires the XHR request -- may be invoked immediately
// or on a gradually expanding retry window for reconnects
var sendFunc = function () {
req.date = new Date();
req.xhr.send(req.data);
};
// Implement progressive backoff for reconnects --
// First retry (send == 1) should also be instantaneous
if (req.sends > 1) {
// Using a cube of the retry number creates a nicely
// expanding retry window
var backoff = Math.min(Math.floor(Strophe.TIMEOUT * this.wait),
Math.pow(req.sends, 3)) * 1000;
setTimeout(sendFunc, backoff);
} else {
sendFunc();
}
req.sends++;
if (this.xmlOutput !== Strophe.Connection.prototype.xmlOutput) {
this.xmlOutput(req.xmlData);
}
if (this.rawOutput !== Strophe.Connection.prototype.rawOutput) {
this.rawOutput(req.data);
}
} else {
Strophe.debug("_processRequest: " +
(i === 0 ? "first" : "second") +
" request has readyState of " +
req.xhr.readyState);
}
},
/** PrivateFunction: _throttledRequestHandler
* _Private_ function to throttle requests to the connection window.
*
* This function makes sure we don't send requests so fast that the
* request ids overflow the connection window in the case that one
* request died.
*/
_throttledRequestHandler: function ()
{
if (!this._requests) {
Strophe.debug("_throttledRequestHandler called with " +
"undefined requests");
} else {
Strophe.debug("_throttledRequestHandler called with " +
this._requests.length + " requests");
}
if (!this._requests || this._requests.length === 0) {
return;
}
if (this._requests.length > 0) {
this._processRequest(0);
}
if (this._requests.length > 1 &&
Math.abs(this._requests[0].rid -
this._requests[1].rid) < this.window) {
this._processRequest(1);
}
},
/** PrivateFunction: _onRequestStateChange
* _Private_ handler for Strophe.Request state changes.
*
* This function is called when the XMLHttpRequest readyState changes.
* It contains a lot of error handling logic for the many ways that
* requests can fail, and calls the request callback when requests
* succeed.
*
* Parameters:
* (Function) func - The handler for the request.
* (Strophe.Request) req - The request that is changing readyState.
*/
_onRequestStateChange: function (func, req)
{
Strophe.debug("request id " + req.id +
"." + req.sends + " state changed to " +
req.xhr.readyState);
if (req.abort) {
req.abort = false;
return;
}
// request complete
var reqStatus;
if (req.xhr.readyState == 4) {
reqStatus = 0;
try {
reqStatus = req.xhr.status;
} catch (e) {
// ignore errors from undefined status attribute. works
// around a browser bug
}
if (typeof(reqStatus) == "undefined") {
reqStatus = 0;
}
if (this.disconnecting) {
if (reqStatus >= 400) {
this._hitError(reqStatus);
return;
}
}
var reqIs0 = (this._requests[0] == req);
var reqIs1 = (this._requests[1] == req);
if ((reqStatus > 0 && reqStatus < 500) || req.sends > 5) {
// remove from internal queue
this._removeRequest(req);
Strophe.debug("request id " +
req.id +
" should now be removed");
}
// request succeeded
if (reqStatus == 200) {
// if request 1 finished, or request 0 finished and request
// 1 is over Strophe.SECONDARY_TIMEOUT seconds old, we need to
// restart the other - both will be in the first spot, as the
// completed request has been removed from the queue already
if (reqIs1 ||
(reqIs0 && this._requests.length > 0 &&
this._requests[0].age() > Math.floor(Strophe.SECONDARY_TIMEOUT * this.wait))) {
this._restartRequest(0);
}
// call handler
Strophe.debug("request id " +
req.id + "." +
req.sends + " got 200");
func(req);
this.errors = 0;
} else {
Strophe.error("request id " +
req.id + "." +
req.sends + " error " + reqStatus +
" happened");
if (reqStatus === 0 ||
(reqStatus >= 400 && reqStatus < 600) ||
reqStatus >= 12000) {
this._hitError(reqStatus);
if (reqStatus >= 400 && reqStatus < 500) {
this._changeConnectStatus(Strophe.Status.DISCONNECTING,
null);
this._doDisconnect();
}
}
}
if (!((reqStatus > 0 && reqStatus < 500) ||
req.sends > 5)) {
this._throttledRequestHandler();
}
}
},
/** PrivateFunction: _hitError
* _Private_ function to handle the error count.
*
* Requests are resent automatically until their error count reaches
* 5. Each time an error is encountered, this function is called to
* increment the count and disconnect if the count is too high.
*
* Parameters:
* (Integer) reqStatus - The request status.
*/
_hitError: function (reqStatus)
{
this.errors++;
Strophe.warn("request errored, status: " + reqStatus +
", number of errors: " + this.errors);
if (this.errors > 4) {
this._onDisconnectTimeout();
}
},
/** PrivateFunction: _doDisconnect
* _Private_ function to disconnect.
*
* This is the last piece of the disconnection logic. This resets the
* connection and alerts the user's connection callback.
*/
_doDisconnect: function ()
{
Strophe.info("_doDisconnect was called");
this.authenticated = false;
this.disconnecting = false;
this.sid = null;
this.streamId = null;
this.rid = Math.floor(Math.random() * 4294967295);
// tell the parent we disconnected
if (this.connected) {
this._changeConnectStatus(Strophe.Status.DISCONNECTED, null);
this.connected = false;
}
// delete handlers
this.handlers = [];
this.timedHandlers = [];
this.removeTimeds = [];
this.removeHandlers = [];
this.addTimeds = [];
this.addHandlers = [];
},
/** PrivateFunction: _dataRecv
* _Private_ handler to processes incoming data from the the connection.
*
* Except for _connect_cb handling the initial connection request,
* this function handles the incoming data for all requests. This
* function also fires stanza handlers that match each incoming
* stanza.
*
* Parameters:
* (Strophe.Request) req - The request that has data ready.
*/
_dataRecv: function (req)
{
try {
var elem = req.getResponse();
} catch (e) {
if (e != "parsererror") { throw e; }
this.disconnect("strophe-parsererror");
}
if (elem === null) { return; }
if (this.xmlInput !== Strophe.Connection.prototype.xmlInput) {
this.xmlInput(elem);
}
if (this.rawInput !== Strophe.Connection.prototype.rawInput) {
this.rawInput(Strophe.serialize(elem));
}
// remove handlers scheduled for deletion
var i, hand;
while (this.removeHandlers.length > 0) {
hand = this.removeHandlers.pop();
i = this.handlers.indexOf(hand);
if (i >= 0) {
this.handlers.splice(i, 1);
}
}
// add handlers scheduled for addition
while (this.addHandlers.length > 0) {
this.handlers.push(this.addHandlers.pop());
}
// handle graceful disconnect
if (this.disconnecting && this._requests.length === 0) {
this.deleteTimedHandler(this._disconnectTimeout);
this._disconnectTimeout = null;
this._doDisconnect();
return;
}
var typ = elem.getAttribute("type");
var cond, conflict;
if (typ !== null && typ == "terminate") {
// Don't process stanzas that come in after disconnect
if (this.disconnecting) {
return;
}
// an error occurred
cond = elem.getAttribute("condition");
conflict = elem.getElementsByTagName("conflict");
if (cond !== null) {
if (cond == "remote-stream-error" && conflict.length > 0) {
cond = "conflict";
}
this._changeConnectStatus(Strophe.Status.CONNFAIL, cond);
} else {
this._changeConnectStatus(Strophe.Status.CONNFAIL, "unknown");
}
this.disconnect();
return;
}
// send each incoming stanza through the handler chain
var that = this;
Strophe.forEachChild(elem, null, function (child) {
var i, newList;
// process handlers
newList = that.handlers;
that.handlers = [];
for (i = 0; i < newList.length; i++) {
var hand = newList[i];
// encapsulate 'handler.run' not to lose the whole handler list if
// one of the handlers throws an exception
try {
if (hand.isMatch(child) &&
(that.authenticated || !hand.user)) {
if (hand.run(child)) {
that.handlers.push(hand);
}
} else {
that.handlers.push(hand);
}
} catch(e) {
//if the handler throws an exception, we consider it as false
}
}
});
},
/** PrivateFunction: _sendTerminate
* _Private_ function to send initial disconnect sequence.
*
* This is the first step in a graceful disconnect. It sends
* the BOSH server a terminate body and includes an unavailable
* presence if authentication has completed.
*/
_sendTerminate: function ()
{
Strophe.info("_sendTerminate was called");
var body = this._buildBody().attrs({type: "terminate"});
if (this.authenticated) {
body.c('presence', {
xmlns: Strophe.NS.CLIENT,
type: 'unavailable'
});
}
this.disconnecting = true;
var req = new Strophe.Request(body.tree(),
this._onRequestStateChange.bind(
this, this._dataRecv.bind(this)),
body.tree().getAttribute("rid"));
this._requests.push(req);
this._throttledRequestHandler();
},
/** PrivateFunction: _connect_cb
* _Private_ handler for initial connection request.
*
* This handler is used to process the initial connection request
* response from the BOSH server. It is used to set up authentication
* handlers and start the authentication process.
*
* SASL authentication will be attempted if available, otherwise
* the code will fall back to legacy authentication.
*
* Parameters:
* (Strophe.Request) req - The current request.
* (Function) _callback - low level (xmpp) connect callback function.
* Useful for plugins with their own xmpp connect callback (when their)
* want to do something special).
*/
_connect_cb: function (req, _callback)
{
Strophe.info("_connect_cb was called");
this.connected = true;
var bodyWrap = req.getResponse();
if (!bodyWrap) { return; }
if (this.xmlInput !== Strophe.Connection.prototype.xmlInput) {
this.xmlInput(bodyWrap);
}
if (this.rawInput !== Strophe.Connection.prototype.rawInput) {
this.rawInput(Strophe.serialize(bodyWrap));
}
var typ = bodyWrap.getAttribute("type");
var cond, conflict;
if (typ !== null && typ == "terminate") {
// an error occurred
cond = bodyWrap.getAttribute("condition");
conflict = bodyWrap.getElementsByTagName("conflict");
if (cond !== null) {
if (cond == "remote-stream-error" && conflict.length > 0) {
cond = "conflict";
}
this._changeConnectStatus(Strophe.Status.CONNFAIL, cond);
} else {
this._changeConnectStatus(Strophe.Status.CONNFAIL, "unknown");
}
return;
}
// check to make sure we don't overwrite these if _connect_cb is
// called multiple times in the case of missing stream:features
if (!this.sid) {
this.sid = bodyWrap.getAttribute("sid");
}
if (!this.stream_id) {
this.stream_id = bodyWrap.getAttribute("authid");
}
var wind = bodyWrap.getAttribute('requests');
if (wind) { this.window = parseInt(wind, 10); }
var hold = bodyWrap.getAttribute('hold');
if (hold) { this.hold = parseInt(hold, 10); }
var wait = bodyWrap.getAttribute('wait');
if (wait) { this.wait = parseInt(wait, 10); }
this._authentication.sasl_scram_sha1 = false;
this._authentication.sasl_plain = false;
this._authentication.sasl_digest_md5 = false;
this._authentication.sasl_anonymous = false;
this._authentication.legacy_auth = false;
// Check for the stream:features tag
var hasFeatures = bodyWrap.getElementsByTagName("stream:features").length > 0;
if (!hasFeatures) {
hasFeatures = bodyWrap.getElementsByTagName("features").length > 0;
}
var mechanisms = bodyWrap.getElementsByTagName("mechanism");
var i, mech, auth_str, hashed_auth_str,
found_authentication = false;
if (hasFeatures && mechanisms.length > 0) {
var missmatchedmechs = 0;
for (i = 0; i < mechanisms.length; i++) {
mech = Strophe.getText(mechanisms[i]);
if (mech == 'SCRAM-SHA-1') {
this._authentication.sasl_scram_sha1 = true;
} else if (mech == 'DIGEST-MD5') {
this._authentication.sasl_digest_md5 = true;
} else if (mech == 'PLAIN') {
this._authentication.sasl_plain = true;
} else if (mech == 'ANONYMOUS') {
this._authentication.sasl_anonymous = true;
} else missmatchedmechs++;
}
this._authentication.legacy_auth =
bodyWrap.getElementsByTagName("auth").length > 0;
found_authentication =
this._authentication.legacy_auth ||
missmatchedmechs < mechanisms.length;
}
if (!found_authentication) {
_callback = _callback || this._connect_cb;
// we didn't get stream:features yet, so we need wait for it
// by sending a blank poll request
var body = this._buildBody();
this._requests.push(
new Strophe.Request(body.tree(),
this._onRequestStateChange.bind(
this, _callback.bind(this)),
body.tree().getAttribute("rid")));
this._throttledRequestHandler();
return;
}
if (this.do_authentication !== false)
this.authenticate();
},
/** Function: authenticate
* Set up authentication
*
* Contiunues the initial connection request by setting up authentication
* handlers and start the authentication process.
*
* SASL authentication will be attempted if available, otherwise
* the code will fall back to legacy authentication.
*
*/
authenticate: function ()
{
if (Strophe.getNodeFromJid(this.jid) === null &&
this._authentication.sasl_anonymous) {
this._changeConnectStatus(Strophe.Status.AUTHENTICATING, null);
this._sasl_success_handler = this._addSysHandler(
this._sasl_success_cb.bind(this), null,
"success", null, null);
this._sasl_failure_handler = this._addSysHandler(
this._sasl_failure_cb.bind(this), null,
"failure", null, null);
this.send($build("auth", {
xmlns: Strophe.NS.SASL,
mechanism: "ANONYMOUS"
}).tree());
} else if (Strophe.getNodeFromJid(this.jid) === null) {
// we don't have a node, which is required for non-anonymous
// client connections
this._changeConnectStatus(Strophe.Status.CONNFAIL,
'x-strophe-bad-non-anon-jid');
this.disconnect();
} else if (this._authentication.sasl_scram_sha1) {
var cnonce = MD5.hexdigest(Math.random() * 1234567890);
var auth_str = "n=" + Strophe.getNodeFromJid(this.jid);
auth_str += ",r=";
auth_str += cnonce;
this._sasl_data["cnonce"] = cnonce;
this._sasl_data["client-first-message-bare"] = auth_str;
auth_str = "n,," + auth_str;
this._changeConnectStatus(Strophe.Status.AUTHENTICATING, null);
this._sasl_challenge_handler = this._addSysHandler(
this._sasl_scram_challenge_cb.bind(this), null,
"challenge", null, null);
this._sasl_failure_handler = this._addSysHandler(
this._sasl_failure_cb.bind(this), null,
"failure", null, null);
this.send($build("auth", {
xmlns: Strophe.NS.SASL,
mechanism: "SCRAM-SHA-1"
}).t(Base64.encode(auth_str)).tree());
} else if (this._authentication.sasl_digest_md5) {
this._changeConnectStatus(Strophe.Status.AUTHENTICATING, null);
this._sasl_challenge_handler = this._addSysHandler(
this._sasl_digest_challenge1_cb.bind(this), null,
"challenge", null, null);
this._sasl_failure_handler = this._addSysHandler(
this._sasl_failure_cb.bind(this), null,
"failure", null, null);
this.send($build("auth", {
xmlns: Strophe.NS.SASL,
mechanism: "DIGEST-MD5"
}).tree());
} else if (this._authentication.sasl_plain) {
// Build the plain auth string (barejid null
// username null password) and base 64 encoded.
auth_str = Strophe.getBareJidFromJid(this.jid);
auth_str = auth_str + "\u0000";
auth_str = auth_str + Strophe.getNodeFromJid(this.jid);
auth_str = auth_str + "\u0000";
auth_str = auth_str + this.pass;
this._changeConnectStatus(Strophe.Status.AUTHENTICATING, null);
this._sasl_success_handler = this._addSysHandler(
this._sasl_success_cb.bind(this), null,
"success", null, null);
this._sasl_failure_handler = this._addSysHandler(
this._sasl_failure_cb.bind(this), null,
"failure", null, null);
hashed_auth_str = Base64.encode(auth_str);
this.send($build("auth", {
xmlns: Strophe.NS.SASL,
mechanism: "PLAIN"
}).t(hashed_auth_str).tree());
} else {
this._changeConnectStatus(Strophe.Status.AUTHENTICATING, null);
this._addSysHandler(this._auth1_cb.bind(this), null, null,
null, "_auth_1");
this.send($iq({
type: "get",
to: this.domain,
id: "_auth_1"
}).c("query", {
xmlns: Strophe.NS.AUTH
}).c("username", {}).t(Strophe.getNodeFromJid(this.jid)).tree());
}
},
/** PrivateFunction: _sasl_digest_challenge1_cb
* _Private_ handler for DIGEST-MD5 SASL authentication.
*
* Parameters:
* (XMLElement) elem - The challenge stanza.
*
* Returns:
* false to remove the handler.
*/
_sasl_digest_challenge1_cb: function (elem)
{
var attribMatch = /([a-z]+)=("[^"]+"|[^,"]+)(?:,|$)/;
var challenge = Base64.decode(Strophe.getText(elem));
var cnonce = MD5.hexdigest("" + (Math.random() * 1234567890));
var realm = "";
var host = null;
var nonce = "";
var qop = "";
var matches;
// remove unneeded handlers
this.deleteHandler(this._sasl_failure_handler);
while (challenge.match(attribMatch)) {
matches = challenge.match(attribMatch);
challenge = challenge.replace(matches[0], "");
matches[2] = matches[2].replace(/^"(.+)"$/, "$1");
switch (matches[1]) {
case "realm":
realm = matches[2];
break;
case "nonce":
nonce = matches[2];
break;
case "qop":
qop = matches[2];
break;
case "host":
host = matches[2];
break;
}
}
var digest_uri = "xmpp/" + this.domain;
if (host !== null) {
digest_uri = digest_uri + "/" + host;
}
var A1 = MD5.hash(Strophe.getNodeFromJid(this.jid) +
":" + realm + ":" + this.pass) +
":" + nonce + ":" + cnonce;
var A2 = 'AUTHENTICATE:' + digest_uri;
var responseText = "";
responseText += 'username=' +
this._quote(Strophe.getNodeFromJid(this.jid)) + ',';
responseText += 'realm=' + this._quote(realm) + ',';
responseText += 'nonce=' + this._quote(nonce) + ',';
responseText += 'cnonce=' + this._quote(cnonce) + ',';
responseText += 'nc="00000001",';
responseText += 'qop="auth",';
responseText += 'digest-uri=' + this._quote(digest_uri) + ',';
responseText += 'response=' + this._quote(
MD5.hexdigest(MD5.hexdigest(A1) + ":" +
nonce + ":00000001:" +
cnonce + ":auth:" +
MD5.hexdigest(A2))) + ',';
responseText += 'charset="utf-8"';
this._sasl_challenge_handler = this._addSysHandler(
this._sasl_digest_challenge2_cb.bind(this), null,
"challenge", null, null);
this._sasl_success_handler = this._addSysHandler(
this._sasl_success_cb.bind(this), null,
"success", null, null);
this._sasl_failure_handler = this._addSysHandler(
this._sasl_failure_cb.bind(this), null,
"failure", null, null);
this.send($build('response', {
xmlns: Strophe.NS.SASL
}).t(Base64.encode(responseText)).tree());
return false;
},
/** PrivateFunction: _quote
* _Private_ utility function to backslash escape and quote strings.
*
* Parameters:
* (String) str - The string to be quoted.
*
* Returns:
* quoted string
*/
_quote: function (str)
{
return '"' + str.replace(/\\/g, "\\\\").replace(/"/g, '\\"') + '"';
//" end string workaround for emacs
},
/** PrivateFunction: _sasl_digest_challenge2_cb
* _Private_ handler for second step of DIGEST-MD5 SASL authentication.
*
* Parameters:
* (XMLElement) elem - The challenge stanza.
*
* Returns:
* false to remove the handler.
*/
_sasl_digest_challenge2_cb: function (elem)
{
// remove unneeded handlers
this.deleteHandler(this._sasl_success_handler);
this.deleteHandler(this._sasl_failure_handler);
this._sasl_success_handler = this._addSysHandler(
this._sasl_success_cb.bind(this), null,
"success", null, null);
this._sasl_failure_handler = this._addSysHandler(
this._sasl_failure_cb.bind(this), null,
"failure", null, null);
this.send($build('response', {xmlns: Strophe.NS.SASL}).tree());
return false;
},
/** PrivateFunction: _sasl_scram_challenge_cb
* _Private_ handler for SCRAM-SHA-1 SASL authentication.
*
* Parameters:
* (XMLElement) elem - The challenge stanza.
*
* Returns:
* false to remove the handler.
*/
_sasl_scram_challenge_cb: function (elem)
{
var nonce, salt, iter, Hi, U, U_old;
var clientKey, serverKey, clientSignature;
var responseText = "c=biws,";
var challenge = Base64.decode(Strophe.getText(elem));
var authMessage = this._sasl_data["client-first-message-bare"] + "," +
challenge + ",";
var cnonce = this._sasl_data["cnonce"]
var attribMatch = /([a-z]+)=([^,]+)(,|$)/;
// remove unneeded handlers
this.deleteHandler(this._sasl_failure_handler);
while (challenge.match(attribMatch)) {
matches = challenge.match(attribMatch);
challenge = challenge.replace(matches[0], "");
switch (matches[1]) {
case "r":
nonce = matches[2];
break;
case "s":
salt = matches[2];
break;
case "i":
iter = matches[2];
break;
}
}
if (!(nonce.substr(0, cnonce.length) === cnonce)) {
this._sasl_data = [];
return this._sasl_failure_cb(null);
}
responseText += "r=" + nonce;
authMessage += responseText;
salt = Base64.decode(salt);
salt += "\0\0\0\1";
Hi = U_old = core_hmac_sha1(this.pass, salt);
for (i = 1; i < iter; i++) {
U = core_hmac_sha1(this.pass, binb2str(U_old));
for (k = 0; k < 5; k++) {
Hi[k] ^= U[k];
}
U_old = U;
}
Hi = binb2str(Hi);
clientKey = core_hmac_sha1(Hi, "Client Key");
serverKey = str_hmac_sha1(Hi, "Server Key");
clientSignature = core_hmac_sha1(str_sha1(binb2str(clientKey)), authMessage);
this._sasl_data["server-signature"] = b64_hmac_sha1(serverKey, authMessage);
for (k = 0; k < 5; k++) {
clientKey[k] ^= clientSignature[k];
}
responseText += ",p=" + Base64.encode(binb2str(clientKey));
this._sasl_success_handler = this._addSysHandler(
this._sasl_success_cb.bind(this), null,
"success", null, null);
this._sasl_failure_handler = this._addSysHandler(
this._sasl_failure_cb.bind(this), null,
"failure", null, null);
this.send($build('response', {
xmlns: Strophe.NS.SASL
}).t(Base64.encode(responseText)).tree());
return false;
},
/** PrivateFunction: _auth1_cb
* _Private_ handler for legacy authentication.
*
* This handler is called in response to the initial <iq type='get'/>
* for legacy authentication. It builds an authentication <iq/> and
* sends it, creating a handler (calling back to _auth2_cb()) to
* handle the result
*
* Parameters:
* (XMLElement) elem - The stanza that triggered the callback.
*
* Returns:
* false to remove the handler.
*/
_auth1_cb: function (elem)
{
// build plaintext auth iq
var iq = $iq({type: "set", id: "_auth_2"})
.c('query', {xmlns: Strophe.NS.AUTH})
.c('username', {}).t(Strophe.getNodeFromJid(this.jid))
.up()
.c('password').t(this.pass);
if (!Strophe.getResourceFromJid(this.jid)) {
// since the user has not supplied a resource, we pick
// a default one here. unlike other auth methods, the server
// cannot do this for us.
this.jid = Strophe.getBareJidFromJid(this.jid) + '/strophe';
}
iq.up().c('resource', {}).t(Strophe.getResourceFromJid(this.jid));
this._addSysHandler(this._auth2_cb.bind(this), null,
null, null, "_auth_2");
this.send(iq.tree());
return false;
},
/** PrivateFunction: _sasl_success_cb
* _Private_ handler for succesful SASL authentication.
*
* Parameters:
* (XMLElement) elem - The matching stanza.
*
* Returns:
* false to remove the handler.
*/
_sasl_success_cb: function (elem)
{
if (this._sasl_data["server-signature"]) {
var serverSignature;
var success = Base64.decode(Strophe.getText(elem));
var attribMatch = /([a-z]+)=([^,]+)(,|$)/;
matches = success.match(attribMatch);
if (matches[1] == "v") {
serverSignature = matches[2];
}
if (serverSignature != this._sasl_data["server-signature"]) {
// remove old handlers
this.deleteHandler(this._sasl_failure_handler);
this._sasl_failure_handler = null;
if (this._sasl_challenge_handler) {
this.deleteHandler(this._sasl_challenge_handler);
this._sasl_challenge_handler = null;
}
this._sasl_data = [];
return this._sasl_failure_cb(null);
}
}
Strophe.info("SASL authentication succeeded.");
// remove old handlers
this.deleteHandler(this._sasl_failure_handler);
this._sasl_failure_handler = null;
if (this._sasl_challenge_handler) {
this.deleteHandler(this._sasl_challenge_handler);
this._sasl_challenge_handler = null;
}
this._addSysHandler(this._sasl_auth1_cb.bind(this), null,
"stream:features", null, null);
// we must send an xmpp:restart now
this._sendRestart();
return false;
},
/** PrivateFunction: _sasl_auth1_cb
* _Private_ handler to start stream binding.
*
* Parameters:
* (XMLElement) elem - The matching stanza.
*
* Returns:
* false to remove the handler.
*/
_sasl_auth1_cb: function (elem)
{
// save stream:features for future usage
this.features = elem;
var i, child;
for (i = 0; i < elem.childNodes.length; i++) {
child = elem.childNodes[i];
if (child.nodeName == 'bind') {
this.do_bind = true;
}
if (child.nodeName == 'session') {
this.do_session = true;
}
}
if (!this.do_bind) {
this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
return false;
} else {
this._addSysHandler(this._sasl_bind_cb.bind(this), null, null,
null, "_bind_auth_2");
var resource = Strophe.getResourceFromJid(this.jid);
if (resource) {
this.send($iq({type: "set", id: "_bind_auth_2"})
.c('bind', {xmlns: Strophe.NS.BIND})
.c('resource', {}).t(resource).tree());
} else {
this.send($iq({type: "set", id: "_bind_auth_2"})
.c('bind', {xmlns: Strophe.NS.BIND})
.tree());
}
}
return false;
},
/** PrivateFunction: _sasl_bind_cb
* _Private_ handler for binding result and session start.
*
* Parameters:
* (XMLElement) elem - The matching stanza.
*
* Returns:
* false to remove the handler.
*/
_sasl_bind_cb: function (elem)
{
if (elem.getAttribute("type") == "error") {
Strophe.info("SASL binding failed.");
var conflict = elem.getElementsByTagName("conflict"), condition;
if (conflict.length > 0) {
condition = 'conflict';
}
this._changeConnectStatus(Strophe.Status.AUTHFAIL, condition);
return false;
}
// TODO - need to grab errors
var bind = elem.getElementsByTagName("bind");
var jidNode;
if (bind.length > 0) {
// Grab jid
jidNode = bind[0].getElementsByTagName("jid");
if (jidNode.length > 0) {
this.jid = Strophe.getText(jidNode[0]);
if (this.do_session) {
this._addSysHandler(this._sasl_session_cb.bind(this),
null, null, null, "_session_auth_2");
this.send($iq({type: "set", id: "_session_auth_2"})
.c('session', {xmlns: Strophe.NS.SESSION})
.tree());
} else {
this.authenticated = true;
this._changeConnectStatus(Strophe.Status.CONNECTED, null);
}
}
} else {
Strophe.info("SASL binding failed.");
this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
return false;
}
},
/** PrivateFunction: _sasl_session_cb
* _Private_ handler to finish successful SASL connection.
*
* This sets Connection.authenticated to true on success, which
* starts the processing of user handlers.
*
* Parameters:
* (XMLElement) elem - The matching stanza.
*
* Returns:
* false to remove the handler.
*/
_sasl_session_cb: function (elem)
{
if (elem.getAttribute("type") == "result") {
this.authenticated = true;
this._changeConnectStatus(Strophe.Status.CONNECTED, null);
} else if (elem.getAttribute("type") == "error") {
Strophe.info("Session creation failed.");
this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
return false;
}
return false;
},
/** PrivateFunction: _sasl_failure_cb
* _Private_ handler for SASL authentication failure.
*
* Parameters:
* (XMLElement) elem - The matching stanza.
*
* Returns:
* false to remove the handler.
*/
_sasl_failure_cb: function (elem)
{
// delete unneeded handlers
if (this._sasl_success_handler) {
this.deleteHandler(this._sasl_success_handler);
this._sasl_success_handler = null;
}
if (this._sasl_challenge_handler) {
this.deleteHandler(this._sasl_challenge_handler);
this._sasl_challenge_handler = null;
}
this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
return false;
},
/** PrivateFunction: _auth2_cb
* _Private_ handler to finish legacy authentication.
*
* This handler is called when the result from the jabber:iq:auth
* <iq/> stanza is returned.
*
* Parameters:
* (XMLElement) elem - The stanza that triggered the callback.
*
* Returns:
* false to remove the handler.
*/
_auth2_cb: function (elem)
{
if (elem.getAttribute("type") == "result") {
this.authenticated = true;
this._changeConnectStatus(Strophe.Status.CONNECTED, null);
} else if (elem.getAttribute("type") == "error") {
this._changeConnectStatus(Strophe.Status.AUTHFAIL, null);
this.disconnect();
}
return false;
},
/** PrivateFunction: _addSysTimedHandler
* _Private_ function to add a system level timed handler.
*
* This function is used to add a Strophe.TimedHandler for the
* library code. System timed handlers are allowed to run before
* authentication is complete.
*
* Parameters:
* (Integer) period - The period of the handler.
* (Function) handler - The callback function.
*/
_addSysTimedHandler: function (period, handler)
{
var thand = new Strophe.TimedHandler(period, handler);
thand.user = false;
this.addTimeds.push(thand);
return thand;
},
/** PrivateFunction: _addSysHandler
* _Private_ function to add a system level stanza handler.
*
* This function is used to add a Strophe.Handler for the
* library code. System stanza handlers are allowed to run before
* authentication is complete.
*
* Parameters:
* (Function) handler - The callback function.
* (String) ns - The namespace to match.
* (String) name - The stanza name to match.
* (String) type - The stanza type attribute to match.
* (String) id - The stanza id attribute to match.
*/
_addSysHandler: function (handler, ns, name, type, id)
{
var hand = new Strophe.Handler(handler, ns, name, type, id);
hand.user = false;
this.addHandlers.push(hand);
return hand;
},
/** PrivateFunction: _onDisconnectTimeout
* _Private_ timeout handler for handling non-graceful disconnection.
*
* If the graceful disconnect process does not complete within the
* time allotted, this handler finishes the disconnect anyway.
*
* Returns:
* false to remove the handler.
*/
_onDisconnectTimeout: function ()
{
Strophe.info("_onDisconnectTimeout was called");
// cancel all remaining requests and clear the queue
var req;
while (this._requests.length > 0) {
req = this._requests.pop();
req.abort = true;
req.xhr.abort();
// jslint complains, but this is fine. setting to empty func
// is necessary for IE6
req.xhr.onreadystatechange = function () {};
}
// actually disconnect
this._doDisconnect();
return false;
},
/** PrivateFunction: _onIdle
* _Private_ handler to process events during idle cycle.
*
* This handler is called every 100ms to fire timed handlers that
* are ready and keep poll requests going.
*/
_onIdle: function ()
{
var i, thand, since, newList;
// add timed handlers scheduled for addition
// NOTE: we add before remove in the case a timed handler is
// added and then deleted before the next _onIdle() call.
while (this.addTimeds.length > 0) {
this.timedHandlers.push(this.addTimeds.pop());
}
// remove timed handlers that have been scheduled for deletion
while (this.removeTimeds.length > 0) {
thand = this.removeTimeds.pop();
i = this.timedHandlers.indexOf(thand);
if (i >= 0) {
this.timedHandlers.splice(i, 1);
}
}
// call ready timed handlers
var now = new Date().getTime();
newList = [];
for (i = 0; i < this.timedHandlers.length; i++) {
thand = this.timedHandlers[i];
if (this.authenticated || !thand.user) {
since = thand.lastCalled + thand.period;
if (since - now <= 0) {
if (thand.run()) {
newList.push(thand);
}
} else {
newList.push(thand);
}
}
}
this.timedHandlers = newList;
var body, time_elapsed;
// if no requests are in progress, poll
if (this.authenticated && this._requests.length === 0 &&
this._data.length === 0 && !this.disconnecting) {
Strophe.info("no requests during idle cycle, sending " +
"blank request");
this._data.push(null);
}
if (this._requests.length < 2 && this._data.length > 0 &&
!this.paused) {
body = this._buildBody();
for (i = 0; i < this._data.length; i++) {
if (this._data[i] !== null) {
if (this._data[i] === "restart") {
body.attrs({
to: this.domain,
"xml:lang": "en",
"xmpp:restart": "true",
"xmlns:xmpp": Strophe.NS.BOSH
});
} else {
body.cnode(this._data[i]).up();
}
}
}
delete this._data;
this._data = [];
this._requests.push(
new Strophe.Request(body.tree(),
this._onRequestStateChange.bind(
this, this._dataRecv.bind(this)),
body.tree().getAttribute("rid")));
this._processRequest(this._requests.length - 1);
}
if (this._requests.length > 0) {
time_elapsed = this._requests[0].age();
if (this._requests[0].dead !== null) {
if (this._requests[0].timeDead() >
Math.floor(Strophe.SECONDARY_TIMEOUT * this.wait)) {
this._throttledRequestHandler();
}
}
if (time_elapsed > Math.floor(Strophe.TIMEOUT * this.wait)) {
Strophe.warn("Request " +
this._requests[0].id +
" timed out, over " + Math.floor(Strophe.TIMEOUT * this.wait) +
" seconds since last activity");
this._throttledRequestHandler();
}
}
clearTimeout(this._idleTimeout);
// reactivate the timer only if connected
if (this.connected) {
this._idleTimeout = setTimeout(this._onIdle.bind(this), 100);
}
}
};
if (callback) {
callback(Strophe, $build, $msg, $iq, $pres);
}
})(function () {
window.Strophe = arguments[0];
window.$build = arguments[1];
window.$msg = arguments[2];
window.$iq = arguments[3];
window.$pres = arguments[4];
});
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