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jappix_ynh/source/app/javascripts/jsjac.js
2014-11-25 20:12:58 +01:00

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JavaScript

/*
Jappix - An open social platform
This is the JSJaC library for Jappix (from trunk)
-------------------------------------------------
Licenses: Mozilla Public License version 1.1, GNU GPL, AGPL
Authors: Stefan Strigler, Valérian Saliou, Zash, Maranda
*/
/**
* @fileoverview Magic dependency loading. Taken from script.aculo.us
* and modified to break it.
* @author Stefan Strigler steve@zeank.in-berlin.de
* @version 1.3
*/
var JSJaC = {
Version: '1.3',
bind: function(fn, obj, optArg) {
return function(arg) {
return fn.apply(obj, [arg, optArg]);
};
}
};
/* Copyright 2006 Erik Arvidsson
*
* Licensed under the Apache License, Version 2.0 (the "License"); you
* may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
/**
* @fileoverview Wrapper to make working with XmlHttpRequest and the
* DOM more convenient (cross browser compliance).
* this code is taken from
* http://webfx.eae.net/dhtml/xmlextras/xmlextras.html
* @author Stefan Strigler steve@zeank.in-berlin.de
* @version 1.3
*/
/**
* XmlHttp factory
* @private
*/
function XmlHttp() {}
/**
* creates a cross browser compliant XmlHttpRequest object
*/
XmlHttp.create = function () {
try {
// Are we cross-domain?
if(!BOSH_SAME_ORIGIN) {
// Able to use CORS?
if (window.XMLHttpRequest) {
var req = new XMLHttpRequest();
if (req.withCredentials !== undefined)
return req;
}
// Fallback on JSONP
return new jXHR();
}
// Might be local-domain?
if (window.XMLHttpRequest) {
var req = new XMLHttpRequest();
// some versions of Moz do not support the readyState property
// and the onreadystate event so we patch it!
if (req.readyState == null) {
req.readyState = 1;
req.addEventListener("load", function () {
req.readyState = 4;
if (typeof req.onreadystatechange == "function")
req.onreadystatechange();
}, false);
}
return req;
}
if (window.ActiveXObject) {
return new ActiveXObject(XmlHttp.getPrefix() + ".XmlHttp");
}
}
catch (ex) {}
// fell through
throw new Error("Your browser does not support XmlHttp objects");
};
/**
* used to find the Automation server name
* @private
*/
XmlHttp.getPrefix = function() {
if (XmlHttp.prefix) // I know what you did last summer
return XmlHttp.prefix;
var prefixes = ["MSXML2", "Microsoft", "MSXML", "MSXML3"];
var o;
for (var i = 0; i < prefixes.length; i++) {
try {
// try to create the objects
o = new ActiveXObject(prefixes[i] + ".XmlHttp");
return XmlHttp.prefix = prefixes[i];
}
catch (ex) {};
}
throw new Error("Could not find an installed XML parser");
};
/**
* XmlDocument factory
* @private
*/
function XmlDocument() {}
XmlDocument.create = function (name,ns) {
name = name || 'foo';
ns = ns || '';
try {
var doc;
// DOM2
if (document.implementation && document.implementation.createDocument) {
doc = document.implementation.createDocument(ns, name, null);
// some versions of Moz do not support the readyState property
// and the onreadystate event so we patch it!
if (doc.readyState == null) {
doc.readyState = 1;
doc.addEventListener("load", function () {
doc.readyState = 4;
if (typeof doc.onreadystatechange == "function")
doc.onreadystatechange();
}, false);
}
} else if (window.ActiveXObject) {
doc = new ActiveXObject(XmlDocument.getPrefix() + ".DomDocument");
}
if (!doc.documentElement || doc.documentElement.tagName != name ||
(doc.documentElement.namespaceURI &&
doc.documentElement.namespaceURI != ns)) {
try {
if (ns != '')
doc.appendChild(doc.createElement(name)).
setAttribute('xmlns',ns);
else
doc.appendChild(doc.createElement(name));
} catch (dex) {
doc = document.implementation.createDocument(ns,name,null);
if (doc.documentElement == null)
doc.appendChild(doc.createElement(name));
// fix buggy opera 8.5x
if (ns != '' &&
doc.documentElement.getAttribute('xmlns') != ns) {
doc.documentElement.setAttribute('xmlns',ns);
}
}
}
return doc;
}
catch (ex) { }
throw new Error("Your browser does not support XmlDocument objects");
};
/**
* used to find the Automation server name
* @private
*/
XmlDocument.getPrefix = function() {
if (XmlDocument.prefix)
return XmlDocument.prefix;
var prefixes = ["MSXML2", "Microsoft", "MSXML", "MSXML3"];
var o;
for (var i = 0; i < prefixes.length; i++) {
try {
// try to create the objects
o = new ActiveXObject(prefixes[i] + ".DomDocument");
return XmlDocument.prefix = prefixes[i];
}
catch (ex) {};
}
throw new Error("Could not find an installed XML parser");
};
// Create the loadXML method
if (typeof(Document) != 'undefined' && window.DOMParser) {
/**
* XMLDocument did not extend the Document interface in some
* versions of Mozilla.
* @private
*/
Document.prototype.loadXML = function (s) {
// parse the string to a new doc
var doc2 = (new DOMParser()).parseFromString(s, "text/xml");
// remove all initial children
while (this.hasChildNodes())
this.removeChild(this.lastChild);
// insert and import nodes
for (var i = 0; i < doc2.childNodes.length; i++) {
this.appendChild(this.importNode(doc2.childNodes[i], true));
}
};
}
// Create xml getter for Mozilla
if (window.XMLSerializer &&
window.Node && Node.prototype && Node.prototype.__defineGetter__) {
/**
* xml getter
*
* This serializes the DOM tree to an XML String
*
* Usage: var sXml = oNode.xml
* @deprecated
* @private
*/
// XMLDocument did not extend the Document interface in some versions
// of Mozilla. Extend both!
XMLDocument.prototype.__defineGetter__("xml", function () {
return (new XMLSerializer()).serializeToString(this);
});
/**
* xml getter
*
* This serializes the DOM tree to an XML String
*
* Usage: var sXml = oNode.xml
* @deprecated
* @private
*/
Document.prototype.__defineGetter__("xml", function () {
return (new XMLSerializer()).serializeToString(this);
});
/**
* xml getter
*
* This serializes the DOM tree to an XML String
*
* Usage: var sXml = oNode.xml
* @deprecated
* @private
*/
Node.prototype.__defineGetter__("xml", function () {
return (new XMLSerializer()).serializeToString(this);
});
}
/**
* @fileoverview Collection of functions to make live easier
* @author Stefan Strigler
* @version 1.3
*/
/**
* Convert special chars to HTML entities
* @addon
* @return The string with chars encoded for HTML
* @type String
*/
String.prototype.htmlEnc = function() {
if(!this)
return this;
return this.replace(/&(?!(amp|apos|gt|lt|quot);)/g,"&amp;")
.replace(/</g,"&lt;")
.replace(/>/g,"&gt;")
.replace(/\'/g,"&apos;")
.replace(/\"/g,"&quot;")
.replace(/\n/g,"<br />");
};
/**
* Convert HTML entities to special chars
* @addon
* @return The normal string
* @type String
*/
String.prototype.revertHtmlEnc = function() {
if(!this)
return this;
var str = this.replace(/&amp;/gi,'&');
str = str.replace(/&lt;/gi,'<');
str = str.replace(/&gt;/gi,'>');
str = str.replace(/&apos;/gi,'\'');
str = str.replace(/&quot;/gi,'\"');
str = str.replace(/<br( )?(\/)?>/gi,'\n');
return str;
};
/**
* Converts from jabber timestamps to JavaScript Date objects
* @addon
* @param {String} ts A string representing a jabber datetime timestamp as
* defined by {@link http://www.xmpp.org/extensions/xep-0082.html XEP-0082}
* @return A javascript Date object corresponding to the jabber DateTime given
* @type Date
*/
Date.jab2date = function(ts) {
// Timestamp
if(!isNaN(ts))
return new Date(ts * 1000);
// Get the UTC date
var date = new Date(Date.UTC(ts.substr(0,4),ts.substr(5,2)-1,ts.substr(8,2),ts.substr(11,2),ts.substr(14,2),ts.substr(17,2)));
if (ts.substr(ts.length-6,1) != 'Z') { // there's an offset
var date_offset = date.getTimezoneOffset() * 60 * 1000;
var offset = new Date();
offset.setTime(0);
offset.setUTCHours(ts.substr(ts.length-5,2));
offset.setUTCMinutes(ts.substr(ts.length-2,2));
if (ts.substr(ts.length-6,1) == '+')
date.setTime(date.getTime() + offset.getTime() + date_offset);
else if (ts.substr(ts.length-6,1) == '-')
date.setTime(date.getTime() - offset.getTime() + date_offset);
}
return date;
};
/**
* Takes a timestamp in the form of 2004-08-13T12:07:04+02:00 as argument
* and converts it to some sort of humane readable format
* @addon
*/
Date.hrTime = function(ts) {
return Date.jab2date(ts).toLocaleString();
};
/**
* Current timestamp.
* @return Seconds since 1.1.1970.
* @type int
*/
if (!Date.now) {
Date.now = function() { return new Date().getTime(); }
}
/**
* somewhat opposit to {@link #hrTime}
* expects a javascript Date object as parameter and returns a jabber
* date string conforming to
* {@link http://www.xmpp.org/extensions/xep-0082.html XEP-0082}
* @see #hrTime
* @return The corresponding jabber DateTime string
* @type String
*/
Date.prototype.jabberDate = function() {
var padZero = function(i) {
if (i < 10) return "0" + i;
return i;
};
var jDate = this.getUTCFullYear() + "-";
jDate += padZero(this.getUTCMonth()+1) + "-";
jDate += padZero(this.getUTCDate()) + "T";
jDate += padZero(this.getUTCHours()) + ":";
jDate += padZero(this.getUTCMinutes()) + ":";
jDate += padZero(this.getUTCSeconds()) + "Z";
return jDate;
};
/**
* Determines the maximum of two given numbers
* @addon
* @param {Number} A a number
* @param {Number} B another number
* @return the maximum of A and B
* @type Number
*/
Number.max = function(A, B) {
return (A > B)? A : B;
};
Number.min = function(A, B) {
return (A < B)? A : B;
};
/* Copyright (c) 1998 - 2007, Paul Johnston & Contributors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following
* disclaimer. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/**
* @fileoverview Collection of MD5 and SHA1 hashing and encoding
* methods.
* @author Stefan Strigler steve@zeank.in-berlin.de
*/
/*
* 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 2.2 Copyright (C) Paul Johnston 1999 - 2009
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
* Distributed under the BSD License
* See http://pajhome.org.uk/crypt/md5 for more info.
*/
/*
* 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_md5(s) { return rstr2hex(rstr_md5(str2rstr_utf8(s))); }
function b64_md5(s) { return rstr2b64(rstr_md5(str2rstr_utf8(s))); }
function any_md5(s, e) { return rstr2any(rstr_md5(str2rstr_utf8(s)), e); }
function hex_hmac_md5(k, d)
{ return rstr2hex(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d))); }
function b64_hmac_md5(k, d)
{ return rstr2b64(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d))); }
function any_hmac_md5(k, d, e)
{ return rstr2any(rstr_hmac_md5(str2rstr_utf8(k), str2rstr_utf8(d)), e); }
/*
* Perform a simple self-test to see if the VM is working
*/
function md5_vm_test()
{
return hex_md5("abc").toLowerCase() == "900150983cd24fb0d6963f7d28e17f72";
}
/*
* Calculate the MD5 of a raw string
*/
function rstr_md5(s)
{
return binl2rstr(binl_md5(rstr2binl(s), s.length * 8));
}
/*
* Calculate the HMAC-MD5, of a key and some data (raw strings)
*/
function rstr_hmac_md5(key, data)
{
var bkey = rstr2binl(key);
if(bkey.length > 16) bkey = binl_md5(bkey, key.length * 8);
var ipad = Array(16), opad = Array(16);
for(var i = 0; i < 16; i++)
{
ipad[i] = bkey[i] ^ 0x36363636;
opad[i] = bkey[i] ^ 0x5C5C5C5C;
}
var hash = binl_md5(ipad.concat(rstr2binl(data)), 512 + data.length * 8);
return binl2rstr(binl_md5(opad.concat(hash), 512 + 128));
}
/*
* Convert a raw string to a hex string
*/
function rstr2hex(input)
{
try { hexcase } catch(e) { hexcase=0; }
var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
var output = "";
var x;
for(var i = 0; i < input.length; i++)
{
x = input.charCodeAt(i);
output += hex_tab.charAt((x >>> 4) & 0x0F)
+ hex_tab.charAt( x & 0x0F);
}
return output;
}
/*
* Convert a raw string to a base-64 string
*/
function rstr2b64(input)
{
try { b64pad } catch(e) { b64pad=''; }
var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var output = "";
var len = input.length;
for(var i = 0; i < len; i += 3)
{
var triplet = (input.charCodeAt(i) << 16)
| (i + 1 < len ? input.charCodeAt(i+1) << 8 : 0)
| (i + 2 < len ? input.charCodeAt(i+2) : 0);
for(var j = 0; j < 4; j++)
{
if(i * 8 + j * 6 > input.length * 8) output += b64pad;
else output += tab.charAt((triplet >>> 6*(3-j)) & 0x3F);
}
}
return output;
}
/*
* Convert a raw string to an arbitrary string encoding
*/
function rstr2any(input, encoding)
{
var divisor = encoding.length;
var i, j, q, x, quotient;
/* Convert to an array of 16-bit big-endian values, forming the dividend */
var dividend = Array(Math.ceil(input.length / 2));
for(i = 0; i < dividend.length; i++)
{
dividend[i] = (input.charCodeAt(i * 2) << 8) | input.charCodeAt(i * 2 + 1);
}
/*
* Repeatedly perform a long division. The binary array forms the dividend,
* the length of the encoding is the divisor. Once computed, the quotient
* forms the dividend for the next step. All remainders are stored for later
* use.
*/
var full_length = Math.ceil(input.length * 8 /
(Math.log(encoding.length) / Math.log(2)));
var remainders = Array(full_length);
for(j = 0; j < full_length; j++)
{
quotient = Array();
x = 0;
for(i = 0; i < dividend.length; i++)
{
x = (x << 16) + dividend[i];
q = Math.floor(x / divisor);
x -= q * divisor;
if(quotient.length > 0 || q > 0)
quotient[quotient.length] = q;
}
remainders[j] = x;
dividend = quotient;
}
/* Convert the remainders to the output string */
var output = "";
for(i = remainders.length - 1; i >= 0; i--)
output += encoding.charAt(remainders[i]);
return output;
}
/*
* Encode a string as utf-8.
* For efficiency, this assumes the input is valid utf-16.
*/
function str2rstr_utf8(input)
{
var output = "";
var i = -1;
var x, y;
while(++i < input.length)
{
/* Decode utf-16 surrogate pairs */
x = input.charCodeAt(i);
y = i + 1 < input.length ? input.charCodeAt(i + 1) : 0;
if(0xD800 <= x && x <= 0xDBFF && 0xDC00 <= y && y <= 0xDFFF)
{
x = 0x10000 + ((x & 0x03FF) << 10) + (y & 0x03FF);
i++;
}
/* Encode output as utf-8 */
if(x <= 0x7F)
output += String.fromCharCode(x);
else if(x <= 0x7FF)
output += String.fromCharCode(0xC0 | ((x >>> 6 ) & 0x1F),
0x80 | ( x & 0x3F));
else if(x <= 0xFFFF)
output += String.fromCharCode(0xE0 | ((x >>> 12) & 0x0F),
0x80 | ((x >>> 6 ) & 0x3F),
0x80 | ( x & 0x3F));
else if(x <= 0x1FFFFF)
output += String.fromCharCode(0xF0 | ((x >>> 18) & 0x07),
0x80 | ((x >>> 12) & 0x3F),
0x80 | ((x >>> 6 ) & 0x3F),
0x80 | ( x & 0x3F));
}
return output;
}
/*
* Encode a string as utf-16
*/
function str2rstr_utf16le(input)
{
var output = "";
for(var i = 0; i < input.length; i++)
output += String.fromCharCode( input.charCodeAt(i) & 0xFF,
(input.charCodeAt(i) >>> 8) & 0xFF);
return output;
}
function str2rstr_utf16be(input)
{
var output = "";
for(var i = 0; i < input.length; i++)
output += String.fromCharCode((input.charCodeAt(i) >>> 8) & 0xFF,
input.charCodeAt(i) & 0xFF);
return output;
}
/*
* Convert a raw string to an array of little-endian words
* Characters >255 have their high-byte silently ignored.
*/
function rstr2binl(input)
{
var output = Array(input.length >> 2);
for(var i = 0; i < output.length; i++)
output[i] = 0;
for(var i = 0; i < input.length * 8; i += 8)
output[i>>5] |= (input.charCodeAt(i / 8) & 0xFF) << (i%32);
return output;
}
/*
* Convert an array of little-endian words to a string
*/
function binl2rstr(input)
{
var output = "";
for(var i = 0; i < input.length * 32; i += 8)
output += String.fromCharCode((input[i>>5] >>> (i % 32)) & 0xFF);
return output;
}
/*
* Calculate the MD5 of an array of little-endian words, and a bit length.
*/
function binl_md5(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;
for(var i = 0; i < x.length; i += 16)
{
var olda = a;
var oldb = b;
var oldc = c;
var 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 Array(a, b, c, d);
}
/*
* These functions implement the four basic operations the algorithm uses.
*/
function md5_cmn(q, a, b, x, s, t)
{
return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
}
function md5_ff(a, b, c, d, x, s, t)
{
return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t)
{
return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t)
{
return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t)
{
return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
}
/*
* 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 bit_rol(num, cnt)
{
return (num << cnt) | (num >>> (32 - cnt));
}
/* #############################################################################
UTF-8 Decoder and Encoder
base64 Encoder and Decoder
written by Tobias Kieslich, justdreams
Contact: tobias@justdreams.de http://www.justdreams.de/
############################################################################# */
// returns an array of byterepresenting dezimal numbers which represent the
// plaintext in an UTF-8 encoded version. Expects a string.
// This function includes an exception management for those nasty browsers like
// NN401, which returns negative decimal numbers for chars>128. I hate it!!
// This handling is unfortunately limited to the user's charset. Anyway, it works
// in most of the cases! Special signs with an unicode>256 return numbers, which
// can not be converted to the actual unicode and so not to the valid utf-8
// representation. Anyway, this function does always return values which can not
// misinterpretd by RC4 or base64 en- or decoding, because every value is >0 and
// <255!!
// Arrays are faster and easier to handle in b64 encoding or encrypting....
function utf8t2d(t)
{
t = t.replace(/\r\n/g,"\n");
var d=new Array; var test=String.fromCharCode(237);
if (test.charCodeAt(0) < 0)
for(var n=0; n<t.length; n++)
{
var c=t.charCodeAt(n);
if (c>0)
d[d.length]= c;
else {
d[d.length]= (((256+c)>>6)|192);
d[d.length]= (((256+c)&63)|128);}
}
else
for(var n=0; n<t.length; n++)
{
var c=t.charCodeAt(n);
// all the signs of asci => 1byte
if (c<128)
d[d.length]= c;
// all the signs between 127 and 2047 => 2byte
else if((c>127) && (c<2048)) {
d[d.length]= ((c>>6)|192);
d[d.length]= ((c&63)|128);}
// all the signs between 2048 and 66536 => 3byte
else {
d[d.length]= ((c>>12)|224);
d[d.length]= (((c>>6)&63)|128);
d[d.length]= ((c&63)|128);}
}
return d;
}
// returns plaintext from an array of bytesrepresenting dezimal numbers, which
// represent an UTF-8 encoded text; browser which does not understand unicode
// like NN401 will show "?"-signs instead
// expects an array of byterepresenting decimals; returns a string
function utf8d2t(d)
{
var r=new Array; var i=0;
while(i<d.length)
{
if (d[i]<128) {
r[r.length]= String.fromCharCode(d[i]); i++;}
else if((d[i]>191) && (d[i]<224)) {
r[r.length]= String.fromCharCode(((d[i]&31)<<6) | (d[i+1]&63)); i+=2;}
else {
r[r.length]= String.fromCharCode(((d[i]&15)<<12) | ((d[i+1]&63)<<6) | (d[i+2]&63)); i+=3;}
}
return r.join("");
}
// included in <body onload="b64arrays"> it creates two arrays which makes base64
// en- and decoding faster
// this speed is noticeable especially when coding larger texts (>5k or so)
function b64arrays() {
var b64s='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
b64 = new Array();f64 =new Array();
for (var i=0; i<b64s.length ;i++) {
b64[i] = b64s.charAt(i);
f64[b64s.charAt(i)] = i;
}
}
// creates a base64 encoded text out of an array of byerepresenting dezimals
// it is really base64 :) this makes serversided handling easier
// expects an array; returns a string
function b64d2t(d) {
var r=new Array; var i=0; var dl=d.length;
// this is for the padding
if ((dl%3) == 1) {
d[d.length] = 0; d[d.length] = 0;}
if ((dl%3) == 2)
d[d.length] = 0;
// from here conversion
while (i<d.length)
{
r[r.length] = b64[d[i]>>2];
r[r.length] = b64[((d[i]&3)<<4) | (d[i+1]>>4)];
r[r.length] = b64[((d[i+1]&15)<<2) | (d[i+2]>>6)];
r[r.length] = b64[d[i+2]&63];
i+=3;
}
// this is again for the padding
if ((dl%3) == 1)
r[r.length-1] = r[r.length-2] = "=";
if ((dl%3) == 2)
r[r.length-1] = "=";
// we join the array to return a textstring
var t=r.join("");
return t;
}
// returns array of byterepresenting numbers created of an base64 encoded text
// it is still the slowest function in this modul; I hope I can make it faster
// expects string; returns an array
function b64t2d(t) {
var d=new Array; var i=0;
// here we fix this CRLF sequenz created by MS-OS; arrrgh!!!
t=t.replace(/\n|\r/g,""); t=t.replace(/=/g,"");
while (i<t.length)
{
d[d.length] = (f64[t.charAt(i)]<<2) | (f64[t.charAt(i+1)]>>4);
d[d.length] = (((f64[t.charAt(i+1)]&15)<<4) | (f64[t.charAt(i+2)]>>2));
d[d.length] = (((f64[t.charAt(i+2)]&3)<<6) | (f64[t.charAt(i+3)]));
i+=4;
}
if (t.length%4 == 2)
d = d.slice(0, d.length-2);
if (t.length%4 == 3)
d = d.slice(0, d.length-1);
return d;
}
if (typeof(atob) == 'undefined' || typeof(btoa) == 'undefined')
b64arrays();
if (typeof(atob) == 'undefined') {
b64decode = function(s) {
return utf8d2t(b64t2d(s));
}
} else {
b64decode = function(s) {
return decodeURIComponent(escape(atob(s)));
}
}
if (typeof(btoa) == 'undefined') {
b64encode = function(s) {
return b64d2t(utf8t2d(s));
}
} else {
b64encode = function(s) {
return btoa(unescape(encodeURIComponent(s)));
}
}
function cnonce(size) {
var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
var cnonce = '';
for (var i=0; i<size; i++) {
cnonce += tab.charAt(Math.round(Math.random(new Date().getTime())*(tab.length-1)));
}
return cnonce;
}
JSJAC_HAVEKEYS = true; // whether to use keys
JSJAC_NKEYS = 16; // number of keys to generate
JSJAC_INACTIVITY = 300; // qnd hack to make suspend/resume
// work more smoothly with polling
JSJAC_ERR_COUNT = 10; // number of retries in case of connection
// errors
JSJAC_ALLOW_PLAIN = true; // whether to allow plaintext logins
JSJAC_CHECKQUEUEINTERVAL = 100; // msecs to poll send queue
JSJAC_CHECKINQUEUEINTERVAL = 100; // msecs to poll incoming queue
JSJAC_TIMERVAL = 2000; // default polling interval
JSJAC_ALLOW_PLAIN = true; // whether to allow plaintext logins
JSJAC_ALLOW_SCRAM = false; // allow usage of SCRAM-SHA-1 authentication; please note that it is quite slow so it is disable by default
JSJAC_RETRYDELAY = 5000; // msecs to wait before trying next
// request after error
JSJAC_REGID_TIMEOUT = 20000; // time in msec until registered
// callbacks for ids timeout
/* Options specific to HTTP Binding (BOSH) */
JSJACHBC_MAX_HOLD = 1; // default for number of connctions
// held by connection manager
JSJACHBC_MAX_WAIT = 300; // default 'wait' param - how long an
// idle connection should be held by
// connection manager
JSJACHBC_BOSH_VERSION = "1.6";
JSJACHBC_USE_BOSH_VER = true;
JSJACHBC_MAXPAUSE = 20; // how long a suspend/resume cycle may take
/*** END CONFIG ***/
/* Copyright (c) 2005-2007 Sam Stephenson
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/*
json.js
taken from prototype.js, made static
*/
function JSJaCJSON() {}
JSJaCJSON.toString = function (obj) {
var m = {
'\b': '\\b',
'\t': '\\t',
'\n': '\\n',
'\f': '\\f',
'\r': '\\r',
'"' : '\\"',
'\\': '\\\\'
},
s = {
array: function (x) {
var a = ['['], b, f, i, l = x.length, v;
for (i = 0; i < l; i += 1) {
v = x[i];
f = s[typeof v];
if (f) {
try {
v = f(v);
if (typeof v == 'string') {
if (b) {
a[a.length] = ',';
}
a[a.length] = v;
b = true;
}
} catch(e) {
}
}
}
a[a.length] = ']';
return a.join('');
},
'boolean': function (x) {
return String(x);
},
'null': function (x) {
return "null";
},
number: function (x) {
return isFinite(x) ? String(x) : 'null';
},
object: function (x) {
if (x) {
if (x instanceof Array) {
return s.array(x);
}
var a = ['{'], b, f, i, v;
for (i in x) {
if (x.hasOwnProperty(i)) {
v = x[i];
f = s[typeof v];
if (f) {
try {
v = f(v);
if (typeof v == 'string') {
if (b) {
a[a.length] = ',';
}
a.push(s.string(i), ':', v);
b = true;
}
} catch(e) {
}
}
}
}
a[a.length] = '}';
return a.join('');
}
return 'null';
},
string: function (x) {
if (/["\\\x00-\x1f]/.test(x)) {
x = x.replace(/([\x00-\x1f\\"])/g, function(a, b) {
var c = m[b];
if (c) {
return c;
}
c = b.charCodeAt();
return '\\u00' +
Math.floor(c / 16).toString(16) +
(c % 16).toString(16);
});
}
return '"' + x + '"';
}
};
switch (typeof(obj)) {
case 'object':
return s.object(obj);
case 'array':
return s.array(obj);
}
};
JSJaCJSON.parse = function (str) {
try {
return !(/[^,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/.test(
str.replace(/"(\\.|[^"\\])*"/g, ''))) &&
eval('(' + str + ')');
} catch (e) {
return false;
}
};
/**
* @fileoverview This file contains all things that make life easier when
* dealing with JIDs
* @author Stefan Strigler
* @version 1.3
*/
/**
* list of forbidden chars for nodenames
* @private
*/
var JSJACJID_FORBIDDEN = ['"',' ','&','\'','/',':','<','>','@'];
/**
* Creates a new JSJaCJID object
* @class JSJaCJID models xmpp jid objects
* @constructor
* @param {Object} jid jid may be either of type String or a JID represented
* by JSON with fields 'node', 'domain' and 'resource'
* @throws JSJaCJIDInvalidException Thrown if jid is not valid
* @return a new JSJaCJID object
*/
function JSJaCJID(jid) {
/**
*@private
*/
this._node = '';
/**
*@private
*/
this._domain = '';
/**
*@private
*/
this._resource = '';
if (typeof(jid) == 'string') {
if (jid.indexOf('@') != -1) {
this.setNode(jid.substring(0,jid.indexOf('@')));
jid = jid.substring(jid.indexOf('@')+1);
}
if (jid.indexOf('/') != -1) {
this.setResource(jid.substring(jid.indexOf('/')+1));
jid = jid.substring(0,jid.indexOf('/'));
}
this.setDomain(jid);
} else {
this.setNode(jid.node);
this.setDomain(jid.domain);
this.setResource(jid.resource);
}
}
/**
* Gets the node part of the jid
* @return A string representing the node name
* @type String
*/
JSJaCJID.prototype.getNode = function() { return this._node; };
/**
* Gets the domain part of the jid
* @return A string representing the domain name
* @type String
*/
JSJaCJID.prototype.getDomain = function() { return this._domain; };
/**
* Gets the resource part of the jid
* @return A string representing the resource
* @type String
*/
JSJaCJID.prototype.getResource = function() { return this._resource; };
/**
* Sets the node part of the jid
* @param {String} node Name of the node
* @throws JSJaCJIDInvalidException Thrown if node name contains invalid chars
* @return This object
* @type JSJaCJID
*/
JSJaCJID.prototype.setNode = function(node) {
JSJaCJID._checkNodeName(node);
this._node = node || '';
return this;
};
/**
* Sets the domain part of the jid
* @param {String} domain Name of the domain
* @throws JSJaCJIDInvalidException Thrown if domain name contains invalid
* chars or is empty
* @return This object
* @type JSJaCJID
*/
JSJaCJID.prototype.setDomain = function(domain) {
if (!domain || domain == '')
throw new JSJaCJIDInvalidException("domain name missing");
// chars forbidden for a node are not allowed in domain names
// anyway, so let's check
JSJaCJID._checkNodeName(domain);
this._domain = domain;
return this;
};
/**
* Sets the resource part of the jid
* @param {String} resource Name of the resource
* @return This object
* @type JSJaCJID
*/
JSJaCJID.prototype.setResource = function(resource) {
this._resource = resource || '';
return this;
};
/**
* The string representation of the full jid
* @return A string representing the jid
* @type String
*/
JSJaCJID.prototype.toString = function() {
var jid = '';
if (this.getNode() && this.getNode() != '')
jid = this.getNode() + '@';
jid += this.getDomain(); // we always have a domain
if (this.getResource() && this.getResource() != "")
jid += '/' + this.getResource();
return jid;
};
/**
* Removes the resource part of the jid
* @return This object
* @type JSJaCJID
*/
JSJaCJID.prototype.removeResource = function() {
return this.setResource();
};
/**
* creates a copy of this JSJaCJID object
* @return A copy of this
* @type JSJaCJID
*/
JSJaCJID.prototype.clone = function() {
return new JSJaCJID(this.toString());
};
/**
* Compares two jids if they belong to the same entity (i.e. w/o resource)
* @param {String} jid a jid as string or JSJaCJID object
* @return 'true' if jid is same entity as this
* @type Boolean
*/
JSJaCJID.prototype.isEntity = function(jid) {
if (typeof jid == 'string')
jid = (new JSJaCJID(jid));
jid.removeResource();
return (this.clone().removeResource().toString() === jid.toString());
};
/**
* Check if node name is valid
* @private
* @param {String} node A name for a node
* @throws JSJaCJIDInvalidException Thrown if name for node is not allowed
*/
JSJaCJID._checkNodeName = function(nodeprep) {
if (!nodeprep || nodeprep == '')
return;
for (var i=0; i< JSJACJID_FORBIDDEN.length; i++) {
if (nodeprep.indexOf(JSJACJID_FORBIDDEN[i]) != -1) {
throw new JSJaCJIDInvalidException("forbidden char in nodename: "+JSJACJID_FORBIDDEN[i]);
}
}
};
/**
* Creates a new Exception of type JSJaCJIDInvalidException
* @class Exception to indicate invalid values for a jid
* @constructor
* @param {String} message The message associated with this Exception
*/
function JSJaCJIDInvalidException(message) {
/**
* The exceptions associated message
* @type String
*/
this.message = message;
/**
* The name of the exception
* @type String
*/
this.name = "JSJaCJIDInvalidException";
}
/* Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/**
* @private
* This code is taken from {@link
* http://wiki.script.aculo.us/scriptaculous/show/Builder
* script.aculo.us' Dom Builder} and has been modified to suit our
* needs.<br/>
* The original parts of the code do have the following
* copyright and license notice:<br/>
* Copyright (c) 2005, 2006 Thomas Fuchs (http://script.aculo.us,
* http://mir.acu lo.us) <br/>
* script.aculo.us is freely distributable under the terms of an
* MIT-style license.<br>
* For details, see the script.aculo.us web site:
* http://script.aculo.us/<br>
*/
var JSJaCBuilder = {
/**
* @private
*/
buildNode: function(doc, elementName) {
var element, ns = arguments[4];
// attributes (or text)
if(arguments[2])
if(JSJaCBuilder._isStringOrNumber(arguments[2]) ||
(arguments[2] instanceof Array)) {
element = this._createElement(doc, elementName, ns);
JSJaCBuilder._children(doc, element, arguments[2]);
} else {
ns = arguments[2]['xmlns'] || ns;
element = this._createElement(doc, elementName, ns);
for(attr in arguments[2]) {
if (arguments[2].hasOwnProperty(attr) && attr != 'xmlns')
element.setAttribute(attr, arguments[2][attr]);
}
}
else
element = this._createElement(doc, elementName, ns);
// text, or array of children
if(arguments[3])
JSJaCBuilder._children(doc, element, arguments[3], ns);
return element;
},
_createElement: function(doc, elementName, ns) {
try {
if (ns)
return doc.createElementNS(ns, elementName);
} catch (ex) { }
var el = doc.createElement(elementName);
if (ns)
el.setAttribute("xmlns", ns);
return el;
},
/**
* @private
*/
_text: function(doc, text) {
return doc.createTextNode(text);
},
/**
* @private
*/
_children: function(doc, element, children, ns) {
if(typeof children=='object') { // array can hold nodes and text
for (var i in children) {
if (children.hasOwnProperty(i)) {
var e = children[i];
if (typeof e=='object') {
if (e instanceof Array) {
var node = JSJaCBuilder.buildNode(doc, e[0], e[1], e[2], ns);
element.appendChild(node);
} else {
element.appendChild(e);
}
} else {
if(JSJaCBuilder._isStringOrNumber(e)) {
element.appendChild(JSJaCBuilder._text(doc, e));
}
}
}
}
} else {
if(JSJaCBuilder._isStringOrNumber(children)) {
element.appendChild(JSJaCBuilder._text(doc, children));
}
}
},
_attributes: function(attributes) {
var attrs = [];
for(attribute in attributes)
if (attributes.hasOwnProperty(attribute))
attrs.push(attribute +
'="' + attributes[attribute].toString().htmlEnc() + '"');
return attrs.join(" ");
},
_isStringOrNumber: function(param) {
return(typeof param=='string' || typeof param=='number');
}
};
/**
* @fileoverview Contains all Jabber/XMPP packet related classes.
* @author Stefan Strigler steve@zeank.in-berlin.de
* @version 1.3
*/
var JSJACPACKET_USE_XMLNS = true;
/**
* Creates a new packet with given root tag name (for internal use)
* @class Somewhat abstract base class for all kinds of specialised packets
* @param {String} name The root tag name of the packet
* (i.e. one of 'message', 'iq' or 'presence')
*/
function JSJaCPacket(name) {
/**
* @private
*/
this.name = name;
if (typeof(JSJACPACKET_USE_XMLNS) != 'undefined' && JSJACPACKET_USE_XMLNS)
/**
* @private
*/
this.doc = XmlDocument.create(name,'jabber:client');
else
/**
* @private
*/
this.doc = XmlDocument.create(name,'');
}
/**
* Gets the type (name of root element) of this packet, i.e. one of
* 'presence', 'message' or 'iq'
* @return the top level tag name
* @type String
*/
JSJaCPacket.prototype.pType = function() { return this.name; };
/**
* Gets the associated Document for this packet.
* @type {@link http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#i-Document Document}
*/
JSJaCPacket.prototype.getDoc = function() {
return this.doc;
};
/**
* Gets the root node of this packet
* @type {@link http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247 Node}
*/
JSJaCPacket.prototype.getNode = function() {
if (this.getDoc() && this.getDoc().documentElement)
return this.getDoc().documentElement;
else
return null;
};
/**
* Sets the 'to' attribute of the root node of this packet
* @param {String} to
* @type JSJaCPacket
*/
JSJaCPacket.prototype.setTo = function(to) {
if (!to || to == '')
this.getNode().removeAttribute('to');
else if (typeof(to) == 'string')
this.getNode().setAttribute('to',to);
else
this.getNode().setAttribute('to',to.toString());
return this;
};
/**
* Sets the 'from' attribute of the root node of this
* packet. Usually this is not needed as the server will take care
* of this automatically.
* @type JSJaCPacket
*/
JSJaCPacket.prototype.setFrom = function(from) {
if (!from || from == '')
this.getNode().removeAttribute('from');
else if (typeof(from) == 'string')
this.getNode().setAttribute('from',from);
else
this.getNode().setAttribute('from',from.toString());
return this;
};
/**
* Sets 'id' attribute of the root node of this packet.
* @param {String} id The id of the packet.
* @type JSJaCPacket
*/
JSJaCPacket.prototype.setID = function(id) {
if (!id || id == '')
this.getNode().removeAttribute('id');
else
this.getNode().setAttribute('id',id);
return this;
};
/**
* Sets the 'type' attribute of the root node of this packet.
* @param {String} type The type of the packet.
* @type JSJaCPacket
*/
JSJaCPacket.prototype.setType = function(type) {
if (!type || type == '')
this.getNode().removeAttribute('type');
else
this.getNode().setAttribute('type',type);
return this;
};
/**
* Sets 'xml:lang' for this packet
* @param {String} xmllang The xml:lang of the packet.
* @type JSJaCPacket
*/
JSJaCPacket.prototype.setXMLLang = function(xmllang) {
// Fix IE bug with xml:lang attribute
// Also due to issues with both BD and jQuery being used, employ a simple regexp since the detection
// here is very limited.
if (navigator.appVersion.match(/^.*MSIE (\d)/) || navigator.userAgent.match(/Trident\/(\d+)((\.)(\d+))?/))
return this;
if (!xmllang || xmllang == '')
this.getNode().removeAttribute('xml:lang');
else
this.getNode().setAttribute('xml:lang',xmllang);
return this;
};
/**
* Gets the 'to' attribute of this packet
* @type String
*/
JSJaCPacket.prototype.getTo = function() {
return this.getNode().getAttribute('to');
};
/**
* Gets the 'from' attribute of this packet.
* @type String
*/
JSJaCPacket.prototype.getFrom = function() {
return this.getNode().getAttribute('from');
};
/**
* Gets the 'to' attribute of this packet as a JSJaCJID object
* @type JSJaCJID
*/
JSJaCPacket.prototype.getToJID = function() {
return new JSJaCJID(this.getTo());
};
/**
* Gets the 'from' attribute of this packet as a JSJaCJID object
* @type JSJaCJID
*/
JSJaCPacket.prototype.getFromJID = function() {
return new JSJaCJID(this.getFrom());
};
/**
* Gets the 'id' of this packet
* @type String
*/
JSJaCPacket.prototype.getID = function() {
return this.getNode().getAttribute('id');
};
/**
* Gets the 'type' of this packet
* @type String
*/
JSJaCPacket.prototype.getType = function() {
return this.getNode().getAttribute('type');
};
/**
* Gets the 'xml:lang' of this packet
* @type String
*/
JSJaCPacket.prototype.getXMLLang = function() {
return this.getNode().getAttribute('xml:lang');
};
/**
* Gets the 'xmlns' (xml namespace) of the root node of this packet
* @type String
*/
JSJaCPacket.prototype.getXMLNS = function() {
return this.getNode().namespaceURI || this.getNode().getAttribute('xmlns');
};
/**
* Gets a child element of this packet. If no params given returns first child.
* @param {String} name Tagname of child to retrieve. Use '*' to match any tag. [optional]
* @param {String} ns Namespace of child. Use '*' to match any ns.[optional]
* @return The child node, null if none found
* @type {@link http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247 Node}
*/
JSJaCPacket.prototype.getChild = function(name, ns) {
if (!this.getNode()) {
return null;
}
name = name || '*';
ns = ns || '*';
if (this.getNode().getElementsByTagNameNS) {
return this.getNode().getElementsByTagNameNS(ns, name).item(0);
}
// fallback
var nodes = this.getNode().getElementsByTagName(name);
if (ns != '*') {
for (var i=0; i<nodes.length; i++) {
if (nodes.item(i).namespaceURI == ns || nodes.item(i).getAttribute('xmlns') == ns) {
return nodes.item(i);
}
}
} else {
return nodes.item(0);
}
return null; // nothing found
};
/**
* Gets the node value of a child element of this packet.
* @param {String} name Tagname of child to retrieve.
* @param {String} ns Namespace of child
* @return The value of the child node, empty string if none found
* @type String
*/
JSJaCPacket.prototype.getChildVal = function(name, ns) {
var node = this.getChild(name, ns);
var ret = '';
if (node && node.hasChildNodes()) {
// concatenate all values from childNodes
for (var i=0; i<node.childNodes.length; i++)
if (node.childNodes.item(i).nodeValue)
ret += node.childNodes.item(i).nodeValue;
}
return ret;
};
/**
* Returns a copy of this node
* @return a copy of this node
* @type JSJaCPacket
*/
JSJaCPacket.prototype.clone = function() {
return JSJaCPacket.wrapNode(this.getNode());
};
/**
* Checks if packet is of type 'error'
* @return 'true' if this packet is of type 'error', 'false' otherwise
* @type boolean
*/
JSJaCPacket.prototype.isError = function() {
return (this.getType() == 'error');
};
/**
* Returns an error condition reply according to {@link http://www.xmpp.org/extensions/xep-0086.html XEP-0086}. Creates a clone of the calling packet with senders and recipient exchanged and error stanza appended.
* @param {STANZA_ERROR} stanza_error an error stanza containing error cody, type and condition of the error to be indicated
* @return an error reply packet
* @type JSJaCPacket
*/
JSJaCPacket.prototype.errorReply = function(stanza_error) {
var rPacket = this.clone();
rPacket.setTo(this.getFrom());
rPacket.setFrom();
rPacket.setType('error');
rPacket.appendNode('error',
{code: stanza_error.code, type: stanza_error.type},
[[stanza_error.cond]]);
return rPacket;
};
/**
* Returns a string representation of the raw xml content of this packet.
* @type String
*/
JSJaCPacket.prototype.xml = typeof XMLSerializer != 'undefined' ?
function() {
var r = (new XMLSerializer()).serializeToString(this.getNode());
if (typeof(r) == 'undefined')
r = (new XMLSerializer()).serializeToString(this.doc); // oldschool
return r
} :
function() {// IE
return this.getDoc().xml
};
// PRIVATE METHODS DOWN HERE
/**
* Gets an attribute of the root element
* @private
*/
JSJaCPacket.prototype._getAttribute = function(attr) {
return this.getNode().getAttribute(attr);
};
if (document.ELEMENT_NODE == null) {
document.ELEMENT_NODE = 1;
document.ATTRIBUTE_NODE = 2;
document.TEXT_NODE = 3;
document.CDATA_SECTION_NODE = 4;
document.ENTITY_REFERENCE_NODE = 5;
document.ENTITY_NODE = 6;
document.PROCESSING_INSTRUCTION_NODE = 7;
document.COMMENT_NODE = 8;
document.DOCUMENT_NODE = 9;
document.DOCUMENT_TYPE_NODE = 10;
document.DOCUMENT_FRAGMENT_NODE = 11;
document.NOTATION_NODE = 12;
}
/**
* import node into this packets document
* @private
*/
JSJaCPacket.prototype._importNode = function(node, allChildren) {
switch (node.nodeType) {
case document.ELEMENT_NODE:
if (this.getDoc().createElementNS) {
var newNode = this.getDoc().createElementNS(node.namespaceURI, node.nodeName);
} else {
var newNode = this.getDoc().createElement(node.nodeName);
}
/* does the node have any attributes to add? */
if (node.attributes && node.attributes.length > 0)
for (var i = 0, il = node.attributes.length;i < il; i++) {
var attr = node.attributes.item(i);
if (attr.nodeName == 'xmlns' && newNode.getAttribute('xmlns') != null ) continue;
if (newNode.setAttributeNS && attr.namespaceURI) {
newNode.setAttributeNS(attr.namespaceURI,
attr.nodeName,
attr.nodeValue);
} else {
newNode.setAttribute(attr.nodeName,
attr.nodeValue);
}
}
/* are we going after children too, and does the node have any? */
if (allChildren && node.childNodes && node.childNodes.length > 0) {
for (var i = 0, il = node.childNodes.length; i < il; i++) {
newNode.appendChild(this._importNode(node.childNodes.item(i), allChildren));
}
}
return newNode;
break;
case document.TEXT_NODE:
case document.CDATA_SECTION_NODE:
case document.COMMENT_NODE:
return this.getDoc().createTextNode(node.nodeValue);
break;
}
};
/**
* Set node value of a child node
* @private
*/
JSJaCPacket.prototype._setChildNode = function(nodeName, nodeValue) {
var aNode = this.getChild(nodeName);
var tNode = this.getDoc().createTextNode(nodeValue);
if (aNode)
try {
aNode.replaceChild(tNode,aNode.firstChild);
} catch (e) { }
else {
try {
aNode = this.getDoc().createElementNS(this.getNode().namespaceURI,
nodeName);
} catch (ex) {
aNode = this.getDoc().createElement(nodeName)
}
this.getNode().appendChild(aNode);
aNode.appendChild(tNode);
}
return aNode;
};
/**
* Builds a node using {@link
* http://wiki.script.aculo.us/scriptaculous/show/Builder
* script.aculo.us' Dom Builder} notation.
* This code is taken from {@link
* http://wiki.script.aculo.us/scriptaculous/show/Builder
* script.aculo.us' Dom Builder} and has been modified to suit our
* needs.<br/>
* The original parts of the code do have the following copyright
* and license notice:<br/>
* Copyright (c) 2005, 2006 Thomas Fuchs (http://script.aculo.us,
* http://mir.acu lo.us) <br/>
* script.aculo.us is freely distributable under the terms of an
* MIT-style licen se. // For details, see the script.aculo.us web
* site: http://script.aculo.us/<br>
* @author Thomas Fuchs
* @author Stefan Strigler
* @return The newly created node
* @type {@link http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247 Node}
*/
JSJaCPacket.prototype.buildNode = function(elementName) {
return JSJaCBuilder.buildNode(this.getDoc(),
elementName,
arguments[1],
arguments[2]);
};
/**
* Appends node created by buildNode to this packets parent node.
* @param {@link http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247 Node} element The node to append or
* @param {String} element A name plus an object hash with attributes (optional) plus an array of childnodes (optional)
* @see #buildNode
* @return This packet
* @type JSJaCPacket
*/
JSJaCPacket.prototype.appendNode = function(element) {
if (typeof element=='object') { // seems to be a prebuilt node
return this.getNode().appendChild(element)
} else { // build node
return this.getNode().appendChild(this.buildNode(element,
arguments[1],
arguments[2],
null,
this.getNode().namespaceURI));
}
};
/**
* A jabber/XMPP presence packet
* @class Models the XMPP notion of a 'presence' packet
* @extends JSJaCPacket
*/
function JSJaCPresence() {
/**
* @ignore
*/
this.base = JSJaCPacket;
this.base('presence');
}
JSJaCPresence.prototype = new JSJaCPacket;
/**
* Sets the status message for current status. Usually this is set
* to some human readable string indicating what the user is
* doing/feel like currently.
* @param {String} status A status message
* @return this
* @type JSJaCPacket
*/
JSJaCPresence.prototype.setStatus = function(status) {
this._setChildNode("status", status);
return this;
};
/**
* Sets the online status for this presence packet.
* @param {String} show An XMPP complient status indicator. Must
* be one of 'chat', 'away', 'xa', 'dnd'
* @return this
* @type JSJaCPacket
*/
JSJaCPresence.prototype.setShow = function(show) {
if (show == 'chat' || show == 'away' || show == 'xa' || show == 'dnd')
this._setChildNode("show",show);
return this;
};
/**
* Sets the priority of the resource bind to with this connection
* @param {int} prio The priority to set this resource to
* @return this
* @type JSJaCPacket
*/
JSJaCPresence.prototype.setPriority = function(prio) {
this._setChildNode("priority", prio);
return this;
};
/**
* Some combined method that allowes for setting show, status and
* priority at once
* @param {String} show A status message
* @param {String} status A status indicator as defined by XMPP
* @param {int} prio A priority for this resource
* @return this
* @type JSJaCPacket
*/
JSJaCPresence.prototype.setPresence = function(show,status,prio) {
if (show)
this.setShow(show);
if (status)
this.setStatus(status);
if (prio)
this.setPriority(prio);
return this;
};
/**
* Gets the status message of this presence
* @return The (human readable) status message
* @type String
*/
JSJaCPresence.prototype.getStatus = function() {
return this.getChildVal('status');
};
/**
* Gets the status of this presence.
* Either one of 'chat', 'away', 'xa' or 'dnd' or null.
* @return The status indicator as defined by XMPP
* @type String
*/
JSJaCPresence.prototype.getShow = function() {
return this.getChildVal('show');
};
/**
* Gets the priority of this status message
* @return A resource priority
* @type int
*/
JSJaCPresence.prototype.getPriority = function() {
return this.getChildVal('priority');
};
/**
* A jabber/XMPP iq packet
* @class Models the XMPP notion of an 'iq' packet
* @extends JSJaCPacket
*/
function JSJaCIQ() {
/**
* @ignore
*/
this.base = JSJaCPacket;
this.base('iq');
}
JSJaCIQ.prototype = new JSJaCPacket;
/**
* Some combined method to set 'to', 'type' and 'id' at once
* @param {String} to the recepients JID
* @param {String} type A XMPP compliant iq type (one of 'set', 'get', 'result' and 'error'
* @param {String} id A packet ID
* @return this
* @type JSJaCIQ
*/
JSJaCIQ.prototype.setIQ = function(to,type,id) {
if (to)
this.setTo(to);
if (type)
this.setType(type);
if (id)
this.setID(id);
return this;
};
/**
* Creates a 'query' child node with given XMLNS
* @param {String} xmlns The namespace for the 'query' node
* @return The query node
* @type {@link http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247 Node}
*/
JSJaCIQ.prototype.setQuery = function(xmlns) {
var query;
try {
query = this.getDoc().createElementNS(xmlns,'query');
} catch (e) {
query = this.getDoc().createElement('query');
query.setAttribute('xmlns',xmlns);
}
this.getNode().appendChild(query);
return query;
};
/**
* Gets the 'query' node of this packet
* @return The query node
* @type {@link http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247 Node}
*/
JSJaCIQ.prototype.getQuery = function() {
return this.getNode().getElementsByTagName('query').item(0);
};
/**
* Gets the XMLNS of the query node contained within this packet
* @return The namespace of the query node
* @type String
*/
JSJaCIQ.prototype.getQueryXMLNS = function() {
if (this.getQuery()) {
return this.getQuery().namespaceURI || this.getQuery().getAttribute('xmlns');
} else {
return null;
}
};
/**
* Creates an IQ reply with type set to 'result'. If given appends payload to first child if IQ. Payload maybe XML as string or a DOM element (or an array of such elements as well).
* @param {Element} payload A payload to be appended [optional]
* @return An IQ reply packet
* @type JSJaCIQ
*/
JSJaCIQ.prototype.reply = function(payload) {
var rIQ = this.clone();
rIQ.setTo(this.getFrom());
rIQ.setFrom();
rIQ.setType('result');
if (payload) {
if (typeof payload == 'string')
rIQ.getChild().appendChild(rIQ.getDoc().loadXML(payload));
else if (payload.constructor == Array) {
var node = rIQ.getChild();
for (var i=0; i<payload.length; i++)
if(typeof payload[i] == 'string')
node.appendChild(rIQ.getDoc().loadXML(payload[i]));
else if (typeof payload[i] == 'object')
node.appendChild(payload[i]);
}
else if (typeof payload == 'object')
rIQ.getChild().appendChild(payload);
}
return rIQ;
};
/**
* A jabber/XMPP message packet
* @class Models the XMPP notion of an 'message' packet
* @extends JSJaCPacket
*/
function JSJaCMessage() {
/**
* @ignore
*/
this.base = JSJaCPacket;
this.base('message');
}
JSJaCMessage.prototype = new JSJaCPacket;
/**
* Sets the body of the message
* @param {String} body Your message to be sent along
* @return this message
* @type JSJaCMessage
*/
JSJaCMessage.prototype.setBody = function(body) {
this._setChildNode("body",body);
return this;
};
/**
* Sets the subject of the message
* @param {String} subject Your subject to be sent along
* @return this message
* @type JSJaCMessage
*/
JSJaCMessage.prototype.setSubject = function(subject) {
this._setChildNode("subject",subject);
return this;
};
/**
* Sets the 'tread' attribute for this message. This is used to identify
* threads in chat conversations
* @param {String} thread Usually a somewhat random hash.
* @return this message
* @type JSJaCMessage
*/
JSJaCMessage.prototype.setThread = function(thread) {
this._setChildNode("thread", thread);
return this;
};
/**
* Sets the 'nick' attribute for this message.
* This is sometime sused to detect the sender nickname when he's not in the roster
* @param {String} nickname
* @return this message
* @type JSJaCMessage
*/
JSJaCMessage.prototype.setNick = function(nick) {
var aNode = this.getChild("nick");
var tNode = this.getDoc().createTextNode(nick);
if (aNode)
try {
aNode.replaceChild(tNode,aNode.firstChild);
} catch (e) { }
else {
try {
aNode = this.getDoc().createElementNS('http://jabber.org/protocol/nick',
"nick");
} catch (ex) {
aNode = this.getDoc().createElement("nick")
}
this.getNode().appendChild(aNode);
aNode.appendChild(tNode);
}
return this;
};
/**
* Gets the 'thread' identifier for this message
* @return A thread identifier
* @type String
*/
JSJaCMessage.prototype.getThread = function() {
return this.getChildVal('thread');
};
/**
* Gets the body of this message
* @return The body of this message
* @type String
*/
JSJaCMessage.prototype.getBody = function() {
return this.getChildVal('body');
};
/**
* Gets the subject of this message
* @return The subject of this message
* @type String
*/
JSJaCMessage.prototype.getSubject = function() {
return this.getChildVal('subject')
};
/**
* Gets the nickname of this message
* @return The nickname of this message
* @type String
*/
JSJaCMessage.prototype.getNick = function() {
return this.getChildVal('nick');
};
/**
* Tries to transform a w3c DOM node to JSJaC's internal representation
* (JSJaCPacket type, one of JSJaCPresence, JSJaCMessage, JSJaCIQ)
* @param: {Node
* http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247}
* node The node to be transformed
* @return A JSJaCPacket representing the given node. If node's root
* elemenent is not one of 'message', 'presence' or 'iq',
* <code>null</code> is being returned.
* @type JSJaCPacket
*/
JSJaCPacket.wrapNode = function(node) {
var oPacket = null;
switch (node.nodeName.toLowerCase()) {
case 'presence':
oPacket = new JSJaCPresence();
break;
case 'message':
oPacket = new JSJaCMessage();
break;
case 'iq':
oPacket = new JSJaCIQ();
break;
}
if (oPacket) {
oPacket.getDoc().replaceChild(oPacket._importNode(node, true),
oPacket.getNode());
}
return oPacket;
};
/**
* an error packet for internal use
* @private
* @constructor
*/
function JSJaCError(code,type,condition) {
var xmldoc = XmlDocument.create("error","jsjac");
xmldoc.documentElement.setAttribute('code',code);
xmldoc.documentElement.setAttribute('type',type);
if (condition)
xmldoc.documentElement.appendChild(xmldoc.createElement(condition)).
setAttribute('xmlns','urn:ietf:params:xml:ns:xmpp-stanzas');
return xmldoc.documentElement;
}
/**
* Creates a new set of hash keys
* @class Reflects a set of sha1/md5 hash keys for securing sessions
* @constructor
* @param {Function} func The hash function to be used for creating the keys
* @param {Debugger} oDbg Reference to debugger implementation [optional]
*/
function JSJaCKeys(func,oDbg) {
var seed = Math.random();
/**
* @private
*/
this._k = new Array();
this._k[0] = seed.toString();
if (oDbg)
/**
* Reference to Debugger
* @type Debugger
*/
this.oDbg = oDbg;
else {
this.oDbg = {};
this.oDbg.log = function() {};
}
if (func) {
for (var i=1; i<JSJAC_NKEYS; i++) {
this._k[i] = func(this._k[i-1]);
oDbg.log(i+": "+this._k[i],4);
}
}
/**
* @private
*/
this._indexAt = JSJAC_NKEYS-1;
/**
* Gets next key from stack
* @return New hash key
* @type String
*/
this.getKey = function() {
return this._k[this._indexAt--];
};
/**
* Indicates whether there's only one key left
* @return <code>true</code> if there's only one key left, false otherwise
* @type boolean
*/
this.lastKey = function() { return (this._indexAt == 0); };
/**
* Returns number of overall/initial stack size
* @return Number of keys created
* @type int
*/
this.size = function() { return this._k.length; };
/**
* @private
*/
this._getSuspendVars = function() {
return ('_k,_indexAt').split(',');
}
}
/**
* @fileoverview Contains all things in common for all subtypes of connections
* supported.
* @author Stefan Strigler steve@zeank.in-berlin.de
* @version 1.3
*/
/**
* Creates a new Jabber connection (a connection to a jabber server)
* @class Somewhat abstract base class for jabber connections. Contains all
* of the code in common for all jabber connections
* @constructor
* @param {JSON http://www.json.org/index} oArg JSON with properties: <br>
* * <code>httpbase</code> the http base address of the service to be used for
* connecting to jabber<br>
* * <code>oDbg</code> (optional) a reference to a debugger interface
*/
function JSJaCConnection(oArg) {
if (oArg && oArg.oDbg && oArg.oDbg.log) {
/**
* Reference to debugger interface
* (needs to implement method <code>log</code>)
* @type Debugger
*/
this.oDbg = oArg.oDbg;
} else {
this.oDbg = new Object(); // always initialise a debugger
this.oDbg.log = function() { };
}
if (oArg && oArg.timerval)
this.setPollInterval(oArg.timerval);
else
this.setPollInterval(JSJAC_TIMERVAL);
if (oArg && oArg.httpbase)
/**
* @private
*/
this._httpbase = oArg.httpbase;
if (oArg &&oArg.allow_plain)
/**
* @private
*/
this.allow_plain = oArg.allow_plain;
else
this.allow_plain = JSJAC_ALLOW_PLAIN;
if (oArg && oArg.cookie_prefix)
/**
* @private
*/
this._cookie_prefix = oArg.cookie_prefix;
else
this._cookie_prefix = "";
/**
* @private
*/
this._connected = false;
/**
* @private
*/
this._events = new Array();
/**
* @private
*/
this._keys = null;
/**
* @private
*/
this._ID = 0;
/**
* @private
*/
this._inQ = new Array();
/**
* @private
*/
this._pQueue = new Array();
/**
* @private
*/
this._regIDs = new Array();
/**
* @private
*/
this._req = new Array();
/**
* @private
*/
this._status = 'intialized';
/**
* @private
*/
this._errcnt = 0;
/**
* @private
*/
this._inactivity = JSJAC_INACTIVITY;
/**
* @private
*/
this._sendRawCallbacks = new Array();
}
// Generates an ID
var STANZA_ID = 1;
function genID() {
return STANZA_ID++;
}
JSJaCConnection.prototype.connect = function(oArg) {
this._setStatus('connecting');
this.domain = oArg.domain || 'localhost';
this.username = oArg.username;
this.resource = oArg.resource;
this.pass = oArg.pass;
this.register = oArg.register;
this.authhost = oArg.authhost || this.domain;
this.authtype = oArg.authtype || 'sasl';
if (oArg.xmllang && oArg.xmllang != '')
this._xmllang = oArg.xmllang;
else
this._xmllang = 'en';
this.host = oArg.host || this.domain;
this.port = oArg.port || 5222;
if (oArg.secure)
this.secure = 'true';
else
this.secure = 'false';
if (oArg.wait)
this._wait = oArg.wait;
this.jid = this.username + '@' + this.domain;
this.fulljid = this.jid + '/' + this.resource;
this._rid = Math.round( 100000.5 + ( ( (900000.49999) - (100000.5) ) * Math.random() ) );
// setupRequest must be done after rid is created but before first use in reqstr
var slot = this._getFreeSlot();
this._req[slot] = this._setupRequest(true);
var reqstr = this._getInitialRequestString();
this.oDbg.log(reqstr,4);
this._req[slot].r.onreadystatechange =
JSJaC.bind(function() {
var r = this._req[slot].r;
if (r.readyState == 4) {
this.oDbg.log("async recv: "+r.responseText,4);
this._handleInitialResponse(r); // handle response
}
}, this);
if (typeof(this._req[slot].r.onerror) != 'undefined') {
this._req[slot].r.onerror =
JSJaC.bind(function(e) {
this.oDbg.log('XmlHttpRequest error',1);
return false;
}, this);
}
this._req[slot].r.send(reqstr);
};
/**
* Tells whether this connection is connected
* @return <code>true</code> if this connections is connected,
* <code>false</code> otherwise
* @type boolean
*/
JSJaCConnection.prototype.connected = function() { return this._connected; };
/**
* Disconnects from jabber server and terminates session (if applicable)
*/
JSJaCConnection.prototype.disconnect = function() {
this._setStatus('disconnecting');
if (!this.connected())
return;
this._connected = false;
clearInterval(this._interval);
clearInterval(this._inQto);
if (this._timeout)
clearTimeout(this._timeout); // remove timer
var slot = this._getFreeSlot();
// Intentionally synchronous
this._req[slot] = this._setupRequest(false);
request = this._getRequestString(false, true);
this.oDbg.log("Disconnecting: " + request,4);
this._req[slot].r.send(request);
try {
DataStore.removeDB(MINI_HASH, 'jsjac', 'state');
} catch (e) {}
this.oDbg.log("Disconnected: "+this._req[slot].r.responseText,2);
this._handleEvent('ondisconnect');
};
/**
* Gets current value of polling interval
* @return Polling interval in milliseconds
* @type int
*/
JSJaCConnection.prototype.getPollInterval = function() {
return this._timerval;
};
/**
* Registers an event handler (callback) for this connection.
* <p>Note: All of the packet handlers for specific packets (like
* message_in, presence_in and iq_in) fire only if there's no
* callback associated with the id.<br>
* <p>Example:<br/>
* <code>con.registerHandler('iq', 'query', 'jabber:iq:version', handleIqVersion);</code>
* @param {String} event One of
* <ul>
* <li>onConnect - connection has been established and authenticated</li>
* <li>onDisconnect - connection has been disconnected</li>
* <li>onResume - connection has been resumed</li>
* <li>onStatusChanged - connection status has changed, current
* status as being passed argument to handler. See {@link #status}.</li>
* <li>onError - an error has occured, error node is supplied as
* argument, like this:<br><code>&lt;error code='404' type='cancel'&gt;<br>
* &lt;item-not-found xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/&gt;<br>
* &lt;/error&gt;</code></li>
* <li>packet_in - a packet has been received (argument: the
* packet)</li>
* <li>packet_out - a packet is to be sent(argument: the
* packet)</li>
* <li>message_in | message - a message has been received (argument:
* the packet)</li>
* <li>message_out - a message packet is to be sent (argument: the
* packet)</li>
* <li>presence_in | presence - a presence has been received
* (argument: the packet)</li>
* <li>presence_out - a presence packet is to be sent (argument: the
* packet)</li>
* <li>iq_in | iq - an iq has been received (argument: the packet)</li>
* <li>iq_out - an iq is to be sent (argument: the packet)</li>
* </ul>
* @param {String} childName A childnode's name that must occur within a
* retrieved packet [optional]
* @param {String} childNS A childnode's namespace that must occure within
* a retrieved packet (works only if childName is given) [optional]
* @param {String} type The type of the packet to handle (works only if childName and chidNS are given (both may be set to '*' in order to get skipped) [optional]
* @param {Function} handler The handler to be called when event occurs. If your handler returns 'true' it cancels bubbling of the event. No other registered handlers for this event will be fired.
*/
JSJaCConnection.prototype.registerHandler = function(event) {
event = event.toLowerCase(); // don't be case-sensitive here
var eArg = {handler: arguments[arguments.length-1],
childName: '*',
childNS: '*',
type: '*'};
if (arguments.length > 2)
eArg.childName = arguments[1];
if (arguments.length > 3)
eArg.childNS = arguments[2];
if (arguments.length > 4)
eArg.type = arguments[3];
if (!this._events[event])
this._events[event] = new Array(eArg);
else
this._events[event] = this._events[event].concat(eArg);
// sort events in order how specific they match criterias thus using
// wildcard patterns puts them back in queue when it comes to
// bubbling the event
this._events[event] =
this._events[event].sort(function(a,b) {
var aRank = 0;
var bRank = 0;
with (a) {
if (type == '*')
aRank++;
if (childNS == '*')
aRank++;
if (childName == '*')
aRank++;
}
with (b) {
if (type == '*')
bRank++;
if (childNS == '*')
bRank++;
if (childName == '*')
bRank++;
}
if (aRank > bRank)
return 1;
if (aRank < bRank)
return -1;
return 0;
});
this.oDbg.log("registered handler for event '"+event+"'",2);
};
JSJaCConnection.prototype.unregisterHandler = function(event,handler) {
event = event.toLowerCase(); // don't be case-sensitive here
if (!this._events[event])
return;
var arr = this._events[event], res = new Array();
for (var i=0; i<arr.length; i++)
if (arr[i].handler != handler)
res.push(arr[i]);
if (arr.length != res.length) {
this._events[event] = res;
this.oDbg.log("unregistered handler for event '"+event+"'",2);
}
};
/**
* Register for iq packets of type 'get'.
* @param {String} childName A childnode's name that must occur within a
* retrieved packet
* @param {String} childNS A childnode's namespace that must occure within
* a retrieved packet (works only if childName is given)
* @param {Function} handler The handler to be called when event occurs. If your handler returns 'true' it cancels bubbling of the event. No other registered handlers for this event will be fired.
*/
JSJaCConnection.prototype.registerIQGet = function(childName, childNS, handler) {
this.registerHandler('iq', childName, childNS, 'get', handler);
};
/**
* Register for iq packets of type 'set'.
* @param {String} childName A childnode's name that must occur within a
* retrieved packet
* @param {String} childNS A childnode's namespace that must occure within
* a retrieved packet (works only if childName is given)
* @param {Function} handler The handler to be called when event occurs. If your handler returns 'true' it cancels bubbling of the event. No other registered handlers for this event will be fired.
*/
JSJaCConnection.prototype.registerIQSet = function(childName, childNS, handler) {
this.registerHandler('iq', childName, childNS, 'set', handler);
};
/**
* Resumes this connection from saved state (cookie)
* @return Whether resume was successful
* @type boolean
*/
JSJaCConnection.prototype.resume = function() {
try {
var json = DataStore.getDB(MINI_HASH, 'jsjac', 'state');
this.oDbg.log('read cookie: '+json,2);
DataStore.removeDB(MINI_HASH, 'jsjac', 'state');
return this.resumeFromData(JSJaCJSON.parse(json));
} catch (e) {}
return false; // sth went wrong
};
/**
* Resumes BOSH connection from data
* @param {Object} serialized jsjac state information
* @return Whether resume was successful
* @type boolean
*/
JSJaCConnection.prototype.resumeFromData = function(data) {
try {
this._setStatus('resuming');
for (var i in data)
if (data.hasOwnProperty(i))
this[i] = data[i];
// copy keys - not being very generic here :-/
if (this._keys) {
this._keys2 = new JSJaCKeys();
var u = this._keys2._getSuspendVars();
for (var i=0; i<u.length; i++)
this._keys2[u[i]] = this._keys[u[i]];
this._keys = this._keys2;
}
if (this._connected) {
// don't poll too fast!
this._handleEvent('onresume');
setTimeout(JSJaC.bind(this._resume, this),this.getPollInterval());
this._interval = setInterval(JSJaC.bind(this._checkQueue, this),
JSJAC_CHECKQUEUEINTERVAL);
this._inQto = setInterval(JSJaC.bind(this._checkInQ, this),
JSJAC_CHECKINQUEUEINTERVAL);
}
return (this._connected === true);
} catch (e) {
if (e.message)
this.oDbg.log("Resume failed: "+e.message, 1);
else
this.oDbg.log("Resume failed: "+e, 1);
return false;
}
};
/**
* Sends a JSJaCPacket
* @param {JSJaCPacket} packet The packet to send
* @param {Function} cb The callback to be called if there's a reply
* to this packet (identified by id) [optional]
* @param {Object} arg Arguments passed to the callback
* (additionally to the packet received) [optional]
* @return 'true' if sending was successfull, 'false' otherwise
* @type boolean
*/
JSJaCConnection.prototype.send = function(packet,cb,arg) {
if (!packet || !packet.pType) {
this.oDbg.log("no packet: "+packet, 1);
return false;
}
if (!this.connected())
return false;
// generate an ID for the packet
if (!packet.getID())
packet.setID(genID());
// packet xml:lang
if (!packet.getXMLLang())
packet.setXMLLang(XML_LANG);
// remember id for response if callback present
if (cb)
this._registerPID(packet, cb, arg);
try {
this._handleEvent(packet.pType()+'_out', packet);
this._handleEvent("packet_out", packet);
this._pQueue = this._pQueue.concat(packet.xml());
} catch (e) {
this.oDbg.log(e.toString(),1);
return false;
}
return true;
};
/**
* Sends an IQ packet. Has default handlers for each reply type.
* Those maybe overriden by passing an appropriate handler.
* @param {JSJaCIQPacket} iq - the iq packet to send
* @param {Object} handlers - object with properties 'error_handler',
* 'result_handler' and 'default_handler'
* with appropriate functions
* @param {Object} arg - argument to handlers
* @return 'true' if sending was successfull, 'false' otherwise
* @type boolean
*/
JSJaCConnection.prototype.sendIQ = function(iq, handlers, arg) {
if (!iq || iq.pType() != 'iq') {
return false;
}
handlers = handlers || {};
var error_handler = handlers.error_handler || JSJaC.bind(function(aIq) {
this.oDbg.log(aIq.xml(), 1);
}, this);
var result_handler = handlers.result_handler || JSJaC.bind(function(aIq) {
this.oDbg.log(aIq.xml(), 2);
}, this);
var iqHandler = function(aIq, arg) {
switch (aIq.getType()) {
case 'error':
error_handler(aIq);
break;
case 'result':
result_handler(aIq, arg);
break;
}
};
return this.send(iq, iqHandler, arg);
};
/**
* Sets polling interval for this connection
* @param {int} timerval Milliseconds to set timer to
* @return effective interval this connection has been set to
* @type int
*/
JSJaCConnection.prototype.setPollInterval = function(timerval) {
if (timerval && !isNaN(timerval))
this._timerval = timerval;
return this._timerval;
};
/**
* Returns current status of this connection
* @return String to denote current state. One of
* <ul>
* <li>'initializing' ... well
* <li>'connecting' if connect() was called
* <li>'resuming' if resume() was called
* <li>'processing' if it's about to operate as normal
* <li>'onerror_fallback' if there was an error with the request object
* <li>'protoerror_fallback' if there was an error at the http binding protocol flow (most likely that's where you interested in)
* <li>'internal_server_error' in case of an internal server error
* <li>'suspending' if suspend() is being called
* <li>'aborted' if abort() was called
* <li>'disconnecting' if disconnect() has been called
* </ul>
* @type String
*/
JSJaCConnection.prototype.status = function() { return this._status; };
/**
* Suspends this connection (saving state for later resume)
* Saves state to cookie
* @return Whether suspend (saving to cookie) was successful
* @type boolean
*/
JSJaCConnection.prototype.suspend = function(has_pause) {
var data = this.suspendToData(has_pause);
try {
var c = DataStore.setDB(MINI_HASH, 'jsjac', 'state', JSJaCJSON.toString(data));
return c;
} catch (e) {
this.oDbg.log("Failed creating cookie '"+this._cookie_prefix+
"JSJaC_State': "+e.message,1);
}
return false;
};
/**
* Suspend connection and return serialized JSJaC connection state
* @return JSJaC connection state object
* @type Object
*/
JSJaCConnection.prototype.suspendToData = function(has_pause) {
// remove timers
if(has_pause) {
clearTimeout(this._timeout);
clearInterval(this._interval);
clearInterval(this._inQto);
this._suspend();
}
var u = ('_connected,_keys,_ID,_inQ,_pQueue,_regIDs,_errcnt,_inactivity,domain,username,resource,jid,fulljid,_sid,_httpbase,_timerval,_is_polling').split(',');
u = u.concat(this._getSuspendVars());
var s = new Object();
for (var i=0; i<u.length; i++) {
if (!this[u[i]]) continue; // hu? skip these!
if (this[u[i]]._getSuspendVars) {
var uo = this[u[i]]._getSuspendVars();
var o = new Object();
for (var j=0; j<uo.length; j++)
o[uo[j]] = this[u[i]][uo[j]];
} else
var o = this[u[i]];
s[u[i]] = o;
}
if(has_pause) {
this._connected = false;
this._setStatus('suspending');
}
return s;
};
/**
* @private
*/
JSJaCConnection.prototype._abort = function() {
clearTimeout(this._timeout); // remove timer
clearInterval(this._inQto);
clearInterval(this._interval);
this._connected = false;
this._setStatus('aborted');
this.oDbg.log("Disconnected.",1);
this._handleEvent('ondisconnect');
this._handleEvent('onerror',
JSJaCError('500','cancel','service-unavailable'));
};
/**
* @private
*/
JSJaCConnection.prototype._checkInQ = function() {
for (var i=0; i<this._inQ.length && i<10; i++) {
var item = this._inQ[0];
this._inQ = this._inQ.slice(1,this._inQ.length);
var packet = JSJaCPacket.wrapNode(item);
if (!packet)
return;
this._handleEvent("packet_in", packet);
if (packet.pType && !this._handlePID(packet)) {
this._handleEvent(packet.pType()+'_in',packet);
this._handleEvent(packet.pType(),packet);
}
}
};
/**
* @private
*/
JSJaCConnection.prototype._checkQueue = function() {
if (this._pQueue.length != 0)
this._process();
return true;
};
/**
* @private
*/
JSJaCConnection.prototype._doAuth = function() {
if (this.has_sasl && this.authtype == 'nonsasl')
this.oDbg.log("Warning: SASL present but not used", 1);
if (!this._doSASLAuth() &&
!this._doLegacyAuth()) {
this.oDbg.log("Auth failed for authtype "+this.authtype,1);
this.disconnect();
return false;
}
return true;
};
/**
* @private
*/
JSJaCConnection.prototype._doInBandReg = function() {
if (this.authtype == 'saslanon' || this.authtype == 'anonymous')
return; // bullshit - no need to register if anonymous
/* ***
* In-Band Registration see JEP-0077
*/
var iq = new JSJaCIQ();
iq.setType('set');
iq.setID('reg1');
iq.appendNode("query", {xmlns: "jabber:iq:register"},
[["username", this.username],
["password", this.pass]]);
this.send(iq,this._doInBandRegDone);
};
/**
* @private
*/
JSJaCConnection.prototype._doInBandRegDone = function(iq) {
if (iq && iq.getType() == 'error') { // we failed to register
this.oDbg.log("registration failed for "+this.username,0);
this._handleEvent('onerror',iq.getChild('error'));
return;
}
this.oDbg.log(this.username + " registered succesfully",0);
this._doAuth();
};
/**
* @private
*/
JSJaCConnection.prototype._doLegacyAuth = function() {
if (this.authtype != 'nonsasl' && this.authtype != 'anonymous')
return false;
/* ***
* Non-SASL Authentication as described in JEP-0078
*/
var iq = new JSJaCIQ();
iq.setIQ(null,'get','auth1');
iq.appendNode('query', {xmlns: 'jabber:iq:auth'},
[['username', this.username]]);
this.send(iq,this._doLegacyAuth2);
return true;
};
/**
* @private
*/
JSJaCConnection.prototype._doLegacyAuth2 = function(iq) {
if (!iq || iq.getType() != 'result') {
if (iq && iq.getType() == 'error')
this._handleEvent('onerror',iq.getChild('error'));
this.disconnect();
return;
}
var use_digest = (iq.getChild('digest') != null);
/* ***
* Send authentication
*/
var iq = new JSJaCIQ();
iq.setIQ(null,'set','auth2');
query = iq.appendNode('query', {xmlns: 'jabber:iq:auth'},
[['username', this.username],
['resource', this.resource]]);
if (use_digest) { // digest login
query.appendChild(iq.buildNode('digest', {xmlns: 'jabber:iq:auth'},
hex_sha1(this.streamid + this.pass)));
} else if (this.allow_plain) { // use plaintext auth
query.appendChild(iq.buildNode('password', {xmlns: 'jabber:iq:auth'},
this.pass));
} else {
this.oDbg.log("no valid login mechanism found",1);
this.disconnect();
return false;
}
this.send(iq,this._doLegacyAuthDone);
};
/**
* @private
*/
JSJaCConnection.prototype._doLegacyAuthDone = function(iq) {
if (iq.getType() != 'result') { // auth' failed
if (iq.getType() == 'error')
this._handleEvent('onerror',iq.getChild('error'));
this.disconnect();
} else
this._handleEvent('onconnect');
};
/**
* @private
*/
JSJaCConnection.prototype._doSASLAuth = function() {
if (this.authtype == 'nonsasl' || this.authtype == 'anonymous')
return false;
if (this.authtype == 'saslanon') {
if (this.mechs['ANONYMOUS']) {
this.oDbg.log("SASL using mechanism 'ANONYMOUS'",2);
return this._sendRaw("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='ANONYMOUS'/>",
this._doSASLAuthDone);
}
this.oDbg.log("SASL ANONYMOUS requested but not supported",1);
} else {
if (this.mechs['DIGEST-MD5']) {
this.oDbg.log("SASL using mechanism 'DIGEST-MD5'",2);
return this._sendRaw("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='DIGEST-MD5'/>",
this._doSASLAuthDigestMd5S1);
} else if (this.allow_plain && this.mechs['PLAIN']) {
this.oDbg.log("SASL using mechanism 'PLAIN'",2);
var authStr = this.username+'@'+
this.domain+String.fromCharCode(0)+
this.username+String.fromCharCode(0)+
this.pass;
this.oDbg.log("authenticating with '"+authStr+"'",2);
authStr = b64encode(authStr);
return this._sendRaw("<auth xmlns='urn:ietf:params:xml:ns:xmpp-sasl' mechanism='PLAIN'>"+authStr+"</auth>",
this._doSASLAuthDone);
}
this.oDbg.log("No SASL mechanism applied",1);
this.authtype = 'nonsasl'; // fallback
}
return false;
};
/**
* @private
*/
JSJaCConnection.prototype._doSASLAuthDigestMd5S1 = function(el) {
if (el.nodeName != "challenge") {
this.oDbg.log("challenge missing",1);
this._handleEvent('onerror',JSJaCError('401','auth','not-authorized'));
this.disconnect();
} else {
var challenge = b64decode(el.firstChild.nodeValue);
this.oDbg.log("got challenge: "+challenge,2);
this._nonce = challenge.substring(challenge.indexOf("nonce=")+7);
this._nonce = this._nonce.substring(0,this._nonce.indexOf("\""));
this.oDbg.log("nonce: "+this._nonce,2);
if (this._nonce == '' || this._nonce.indexOf('\"') != -1) {
this.oDbg.log("nonce not valid, aborting",1);
this.disconnect();
return;
}
this._digest_uri = "xmpp/";
// if (typeof(this.host) != 'undefined' && this.host != '') {
// this._digest-uri += this.host;
// if (typeof(this.port) != 'undefined' && this.port)
// this._digest-uri += ":" + this.port;
// this._digest-uri += '/';
// }
this._digest_uri += this.domain;
this._cnonce = cnonce(14);
this._nc = '00000001';
var X = this.username+':'+this.domain+':'+this.pass;
var Y = rstr_md5(str2rstr_utf8(X));
var A1 = Y+':'+this._nonce+':'+this._cnonce;
var HA1 = rstr2hex(rstr_md5(A1));
var A2 = 'AUTHENTICATE:'+this._digest_uri;
var HA2 = hex_md5(A2);
var response = hex_md5(HA1+':'+this._nonce+':'+this._nc+':'+
this._cnonce+':auth:'+HA2);
var rPlain = 'username="'+this.username+'",realm="'+this.domain+
'",nonce="'+this._nonce+'",cnonce="'+this._cnonce+'",nc="'+this._nc+
'",qop=auth,digest-uri="'+this._digest_uri+'",response="'+response+
'",charset="utf-8"';
this.oDbg.log("response: "+rPlain,2);
this._sendRaw("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>"+
b64encode(rPlain)+"</response>",
this._doSASLAuthDigestMd5S2);
}
};
/**
* @private
*/
JSJaCConnection.prototype._doSASLAuthDigestMd5S2 = function(el) {
if (el.nodeName == 'failure') {
if (el.xml)
this.oDbg.log("auth error: "+el.xml,1);
else
this.oDbg.log("auth error",1);
this._handleEvent('onerror',JSJaCError('401','auth','not-authorized'));
this.disconnect();
return;
}
var response = b64decode(el.firstChild.nodeValue);
this.oDbg.log("response: "+response,2);
var rspauth = response.substring(response.indexOf("rspauth=")+8);
this.oDbg.log("rspauth: "+rspauth,2);
var X = this.username+':'+this.domain+':'+this.pass;
var Y = rstr_md5(str2rstr_utf8(X));
var A1 = Y+':'+this._nonce+':'+this._cnonce;
var HA1 = rstr2hex(rstr_md5(A1));
var A2 = ':'+this._digest_uri;
var HA2 = hex_md5(A2);
var rsptest = hex_md5(HA1+':'+this._nonce+':'+this._nc+':'+
this._cnonce+':auth:'+HA2);
this.oDbg.log("rsptest: "+rsptest,2);
if (rsptest != rspauth) {
this.oDbg.log("SASL Digest-MD5: server repsonse with wrong rspauth",1);
this.disconnect();
return;
}
if (el.nodeName == 'success') {
this._reInitStream(JSJaC.bind(this._doStreamBind, this));
} else { // some extra turn
this._sendRaw("<response xmlns='urn:ietf:params:xml:ns:xmpp-sasl'/>",
this._doSASLAuthDone);
}
};
/**
* @private
*/
JSJaCConnection.prototype._doSASLAuthDone = function (el) {
if (el.nodeName != 'success') {
this.oDbg.log("auth failed",1);
this._handleEvent('onerror',JSJaCError('401','auth','not-authorized'));
this.disconnect();
} else {
this._reInitStream(JSJaC.bind(this._doStreamBind, this));
}
};
/**
* @private
*/
JSJaCConnection.prototype._doStreamBind = function() {
var iq = new JSJaCIQ();
iq.setIQ(null,'set','bind_1');
iq.appendNode("bind", {xmlns: "urn:ietf:params:xml:ns:xmpp-bind"},
[["resource", this.resource]]);
this.oDbg.log(iq.xml());
this.send(iq,this._doXMPPSess);
};
/**
* @private
*/
JSJaCConnection.prototype._doXMPPSess = function(iq) {
if (iq.getType() != 'result' || iq.getType() == 'error') { // failed
this.disconnect();
if (iq.getType() == 'error')
this._handleEvent('onerror',iq.getChild('error'));
return;
}
this.fulljid = iq.getChildVal("jid");
this.jid = this.fulljid.substring(0,this.fulljid.lastIndexOf('/'));
if (!this.legacy_sessions) {
this._handleEvent('onconnect');
return;
}
iq = new JSJaCIQ();
iq.setIQ(null,'set','sess_1');
iq.appendNode("session", {xmlns: "urn:ietf:params:xml:ns:xmpp-session"},
[]);
this.oDbg.log(iq.xml());
this.send(iq,this._doXMPPSessDone);
};
/**
* @private
*/
JSJaCConnection.prototype._doXMPPSessDone = function(iq) {
if (iq.getType() != 'result' || iq.getType() == 'error') { // failed
this.disconnect();
if (iq.getType() == 'error')
this._handleEvent('onerror',iq.getChild('error'));
return;
} else
this._handleEvent('onconnect');
};
/**
* @private
*/
JSJaCConnection.prototype._handleEvent = function(event,arg) {
event = event.toLowerCase(); // don't be case-sensitive here
this.oDbg.log("incoming event '"+event+"'",3);
if (!this._events[event])
return;
this.oDbg.log("handling event '"+event+"'",2);
for (var i=0;i<this._events[event].length; i++) {
var aEvent = this._events[event][i];
if (typeof aEvent.handler == 'function') {
try {
if (arg) {
if (arg.pType) { // it's a packet
if ((!arg.getNode().hasChildNodes() && aEvent.childName != '*') ||
(arg.getNode().hasChildNodes() &&
!arg.getChild(aEvent.childName, aEvent.childNS)))
continue;
if (aEvent.type != '*' &&
arg.getType() != aEvent.type)
continue;
this.oDbg.log(aEvent.childName+"/"+aEvent.childNS+"/"+aEvent.type+" => match for handler "+aEvent.handler,3);
}
if (aEvent.handler(arg)) {
// handled!
break;
}
}
else
if (aEvent.handler()) {
// handled!
break;
}
} catch (e) {
if (e.fileName&&e.lineNumber) {
this.oDbg.log(aEvent.handler+"\n>>>"+e.name+": "+ e.message+' in '+e.fileName+' line '+e.lineNumber,1);
} else {
this.oDbg.log(aEvent.handler+"\n>>>"+e.name+": "+ e.message,1);
}
}
}
}
};
/**
* @private
*/
JSJaCConnection.prototype._handlePID = function(packet) {
if (!packet.getID())
return false;
var jid = packet.getFrom() || this.jid;
if (packet.getFrom() == this.domain)
jid = this.jid;
var id = packet.getID();
if (this._regIDs[jid] && this._regIDs[jid][id]) {
try {
this.oDbg.log("handling id "+id,3);
var reg = this._regIDs[jid][id];
if (reg.cb.call(this, packet, reg.arg) === false) {
// don't unregister
return false;
} else {
delete this._regIDs[jid][id];
return true;
}
} catch (e) {
// broken handler?
this.oDbg.log(e.name+": "+ e.message, 1);
delete this._regIDs[jid][id];
return true;
}
} else {
this.oDbg.log("not handling id '"+id+"' from jid "+jid, 1);
}
return false;
};
/**
* @private
*/
JSJaCConnection.prototype._handleResponse = function(req) {
var rootEl = this._parseResponse(req);
if (!rootEl)
return;
for (var i=0; i<rootEl.childNodes.length; i++) {
if (this._sendRawCallbacks.length) {
var cb = this._sendRawCallbacks[0];
this._sendRawCallbacks = this._sendRawCallbacks.slice(1, this._sendRawCallbacks.length);
cb.fn.call(this, rootEl.childNodes.item(i), cb.arg);
continue;
}
this._inQ = this._inQ.concat(rootEl.childNodes.item(i));
}
};
/**
* @private
*/
JSJaCConnection.prototype._parseStreamFeatures = function(doc) {
if (!doc) {
this.oDbg.log("nothing to parse ... aborting",1);
return false;
}
var errorTag;
if (doc.getElementsByTagNameNS) {
errorTag = doc.getElementsByTagNameNS("http://etherx.jabber.org/streams", "error").item(0);
} else {
var errors = doc.getElementsByTagName("error");
for (var i=0; i<errors.length; i++)
if (errors.item(i).namespaceURI == "http://etherx.jabber.org/streams" ||
errors.item(i).getAttribute('xmlns') == "http://etherx.jabber.org/streams") {
errorTag = errors.item(i);
break;
}
}
if (errorTag) {
this._setStatus("internal_server_error");
clearTimeout(this._timeout); // remove timer
clearInterval(this._interval);
clearInterval(this._inQto);
this._handleEvent('onerror',JSJaCError('503','cancel','session-terminate'));
this._connected = false;
this.oDbg.log("Disconnected.",1);
this._handleEvent('ondisconnect');
return false;
}
this.mechs = new Object();
var lMec1 = doc.getElementsByTagName("mechanisms");
this.has_sasl = false;
for (var i=0; i<lMec1.length; i++)
if (lMec1.item(i).getAttribute("xmlns") ==
"urn:ietf:params:xml:ns:xmpp-sasl") {
this.has_sasl=true;
var lMec2 = lMec1.item(i).getElementsByTagName("mechanism");
for (var j=0; j<lMec2.length; j++)
this.mechs[lMec2.item(j).firstChild.nodeValue] = true;
break;
}
if (this.has_sasl)
this.oDbg.log("SASL detected",2);
else {
this.oDbg.log("No support for SASL detected",2);
return false;
}
// Get the server CAPS (if available)
this.server_caps=null;
var sCaps = doc.getElementsByTagName("c");
for (var i=0; i<sCaps.length; i++) {
var c_sCaps=sCaps.item(i);
var x_sCaps=c_sCaps.getAttribute("xmlns");
var v_sCaps=c_sCaps.getAttribute("ver");
if ((x_sCaps == NS_CAPS) && v_sCaps) {
this.server_caps=v_sCaps;
break;
}
}
// Get legacy session capability if available
this.legacy_sessions=null;
if (doc.getElementsByTagName("session")) {
this.legacy_sessions=true;
}
return true;
};
/**
* @private
*/
JSJaCConnection.prototype._process = function(timerval) {
if (!this.connected()) {
this.oDbg.log("Connection lost ...",1);
if (this._interval)
clearInterval(this._interval);
return;
}
this.setPollInterval(timerval);
if (this._timeout)
clearTimeout(this._timeout);
var slot = this._getFreeSlot();
if (slot < 0)
return;
if (typeof(this._req[slot]) != 'undefined' &&
typeof(this._req[slot].r) != 'undefined' &&
this._req[slot].r.readyState != 4) {
this.oDbg.log("Slot "+slot+" is not ready");
return;
}
if (!this.isPolling() && this._pQueue.length == 0 &&
this._req[(slot+1)%2] && this._req[(slot+1)%2].r.readyState != 4) {
this.oDbg.log("all slots busy, standby ...", 2);
return;
}
if (!this.isPolling())
this.oDbg.log("Found working slot at "+slot,2);
this._req[slot] = this._setupRequest(true);
/* setup onload handler for async send */
this._req[slot].r.onreadystatechange =
JSJaC.bind(function() {
if (this._req[slot].r.readyState == 4) {
this._setStatus('processing');
this.oDbg.log("async recv: "+this._req[slot].r.responseText,4);
this._handleResponse(this._req[slot]);
if (!this.connected())
return;
// schedule next tick
if (this._pQueue.length) {
this._timeout = setTimeout(JSJaC.bind(this._process, this),100);
} else {
this.oDbg.log("scheduling next poll in "+this.getPollInterval()+
" msec", 4);
this._timeout = setTimeout(JSJaC.bind(this._process, this),this.getPollInterval());
}
}
}, this);
try {
this._req[slot].r.onerror =
JSJaC.bind(function() {
if (!this.connected())
return;
this._errcnt++;
this.oDbg.log('XmlHttpRequest error ('+this._errcnt+')',1);
if (this._errcnt > JSJAC_ERR_COUNT) {
// abort
this._abort();
return false;
}
this._setStatus('onerror_fallback');
// schedule next tick
setTimeout(JSJaC.bind(this._resume, this),this.getPollInterval());
return false;
}, this);
} catch(e) { } // well ... no onerror property available, maybe we
// can catch the error somewhere else ...
var reqstr = this._getRequestString();
if (typeof(this._rid) != 'undefined') // remember request id if any
this._req[slot].rid = this._rid;
this.oDbg.log("sending: " + reqstr,4);
this._req[slot].r.send(reqstr);
};
/**
* @private
@param {JSJaCPacket} packet The packet to be sent.
@param {function} cb The callback to be called when response is received.
@param {any} arg Optional arguments to be passed to 'cb' when executing it.
@return Whether registering an ID was successful
@type boolean
*/
JSJaCConnection.prototype._registerPID = function(packet, cb, arg) {
this.oDbg.log("registering id for packet "+packet.xml(), 3);
var id = packet.getID();
if (!id) {
this.oDbg.log("id missing", 1);
return false;
}
if (typeof cb != 'function') {
this.oDbg.log("callback is not a function", 1);
return false;
}
var jid = packet.getTo() || this.jid;
if (packet.getTo() == this.domain)
jid = this.jid;
if (!this._regIDs[jid]) {
this._regIDs[jid] = {};
}
if (this._regIDs[jid][id] != null) {
this.oDbg.log("id already registered: " + id, 1);
return false;
}
this._regIDs[jid][id] = {
cb: cb,
arg: arg,
ts: Date.now()
};
this.oDbg.log("registered id "+id,3);
this._cleanupRegisteredPIDs();
return true;
};
/**
* @private
*/
JSJaCConnection.prototype._cleanupRegisteredPIDs = function() {
var now = Date.now();
for (var jid in this._regIDs) {
if (this._regIDs.hasOwnProperty(jid)) {
for (var id in this._regIDs[jid]) {
if (this._regIDs[jid].hasOwnProperty(id)) {
if (this._regIDs[jid][id].ts + JSJAC_REGID_TIMEOUT < now) {
this.oDbg.log("deleting registered id '"+id+ "' due to timeout", 1);
delete this._regIDs[jid][id];
}
}
}
}
}
};
/**
* Partial function binding sendEmpty to callback
* @private
*/
JSJaCConnection.prototype._prepSendEmpty = function(cb, ctx) {
return function() {
ctx._sendEmpty(JSJaC.bind(cb, ctx));
};
};
/**
* send empty request
* waiting for stream id to be able to proceed with authentication
* @private
*/
JSJaCConnection.prototype._sendEmpty = function(cb) {
var slot = this._getFreeSlot();
this._req[slot] = this._setupRequest(true);
this._req[slot].r.onreadystatechange =
JSJaC.bind(function() {
if (this._req[slot].r.readyState == 4) {
this.oDbg.log("async recv: "+this._req[slot].r.responseText,4);
cb(this._req[slot].r); // handle response
}
},this);
if (typeof(this._req[slot].r.onerror) != 'undefined') {
this._req[slot].r.onerror =
JSJaC.bind(function(e) {
this.oDbg.log('XmlHttpRequest error',1);
return false;
}, this);
}
var reqstr = this._getRequestString();
this.oDbg.log("sending: " + reqstr,4);
this._req[slot].r.send(reqstr);
};
/**
* @private
*/
JSJaCConnection.prototype._sendRaw = function(xml,cb,arg) {
if (cb)
this._sendRawCallbacks.push({fn: cb, arg: arg});
this._pQueue.push(xml);
this._process();
return true;
};
/**
* @private
*/
JSJaCConnection.prototype._setStatus = function(status) {
if (!status || status == '')
return;
if (status != this._status) { // status changed!
this._status = status;
this._handleEvent('onstatuschanged', status);
this._handleEvent('status_changed', status);
}
};
/**
* @fileoverview All stuff related to HTTP Binding
* @author Stefan Strigler steve@zeank.in-berlin.de
* @version 1.3
*/
/**
* Instantiates an HTTP Binding session
* @class Implementation of {@link
* http://www.xmpp.org/extensions/xep-0206.html XMPP Over BOSH}
* formerly known as HTTP Binding.
* @extends JSJaCConnection
* @constructor
*/
function JSJaCHttpBindingConnection(oArg) {
/**
* @ignore
*/
this.base = JSJaCConnection;
this.base(oArg);
// member vars
/**
* @private
*/
this._hold = JSJACHBC_MAX_HOLD;
/**
* @private
*/
this._inactivity = 0;
/**
* @private
*/
this._last_requests = new Object(); // 'hash' storing hold+1 last requests
/**
* @private
*/
this._last_rid = 0; // I know what you did last summer
/**
* @private
*/
this._min_polling = 0;
/**
* @private
*/
this._pause = 0;
/**
* @private
*/
this._wait = JSJACHBC_MAX_WAIT;
}
JSJaCHttpBindingConnection.prototype = new JSJaCConnection();
/**
* Inherit an instantiated HTTP Binding session
*/
JSJaCHttpBindingConnection.prototype.inherit = function(oArg) {
if (oArg.jid) {
var oJid = new JSJaCJID(oArg.jid);
this.domain = oJid.getDomain();
this.username = oJid.getNode();
this.resource = oJid.getResource();
} else {
this.domain = oArg.domain || 'localhost';
this.username = oArg.username;
this.resource = oArg.resource;
}
this._sid = oArg.sid;
this._rid = oArg.rid;
this._min_polling = oArg.polling;
this._inactivity = oArg.inactivity;
this._setHold(oArg.requests-1);
this.setPollInterval(this._timerval);
if (oArg.wait)
this._wait = oArg.wait; // for whatever reason
this._connected = true;
this._handleEvent('onconnect');
this._interval= setInterval(JSJaC.bind(this._checkQueue, this),
JSJAC_CHECKQUEUEINTERVAL);
this._inQto = setInterval(JSJaC.bind(this._checkInQ, this),
JSJAC_CHECKINQUEUEINTERVAL);
this._timeout = setTimeout(JSJaC.bind(this._process, this),
this.getPollInterval());
};
/**
* Sets poll interval
* @param {int} timerval the interval in seconds
*/
JSJaCHttpBindingConnection.prototype.setPollInterval = function(timerval) {
if (timerval && !isNaN(timerval)) {
if (!this.isPolling())
this._timerval = 100;
else if (this._min_polling && timerval < this._min_polling*1000)
this._timerval = this._min_polling*1000;
else if (this._inactivity && timerval > this._inactivity*1000)
this._timerval = this._inactivity*1000;
else
this._timerval = timerval;
}
return this._timerval;
};
/**
* whether this session is in polling mode
* @type boolean
*/
JSJaCHttpBindingConnection.prototype.isPolling = function() { return (this._hold == 0) };
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._getFreeSlot = function() {
for (var i=0; i<this._hold+1; i++)
if (typeof(this._req[i]) == 'undefined' || typeof(this._req[i].r) == 'undefined' || this._req[i].r.readyState == 4)
return i;
return -1; // nothing found
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._getHold = function() { return this._hold; };
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._getRequestString = function(raw, last) {
raw = raw || '';
var reqstr = '';
// check if we're repeating a request
if (this._rid <= this._last_rid && typeof(this._last_requests[this._rid]) != 'undefined') // repeat!
reqstr = this._last_requests[this._rid].xml;
else { // grab from queue
var xml = '';
while (this._pQueue.length) {
var curNode = this._pQueue[0];
xml += curNode;
this._pQueue = this._pQueue.slice(1,this._pQueue.length);
}
reqstr = "<body xml:lang='"+XML_LANG+"' rid='"+this._rid+"' sid='"+this._sid+"' xmlns='http://jabber.org/protocol/httpbind' ";
if (JSJAC_HAVEKEYS) {
reqstr += "key='"+this._keys.getKey()+"' ";
if (this._keys.lastKey()) {
this._keys = new JSJaCKeys(hex_sha1,this.oDbg);
reqstr += "newkey='"+this._keys.getKey()+"' ";
}
}
if (last)
reqstr += "type='terminate'";
else if (this._reinit) {
if (JSJACHBC_USE_BOSH_VER)
reqstr += "xmpp:restart='true' xmlns:xmpp='urn:xmpp:xbosh' to='"+this.domain+"'";
this._reinit = false;
}
if (xml != '' || raw != '') {
reqstr += ">" + raw + xml + "</body>";
} else {
reqstr += "/>";
}
this._last_requests[this._rid] = new Object();
this._last_requests[this._rid].xml = reqstr;
this._last_rid = this._rid;
for (var i in this._last_requests)
if (this._last_requests.hasOwnProperty(i) &&
i < this._rid-this._hold)
delete(this._last_requests[i]); // truncate
}
return reqstr;
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._getInitialRequestString = function() {
var reqstr = "<body xml:lang='"+XML_LANG+"' content='text/xml; charset=utf-8' hold='"+this._hold+"' xmlns='http://jabber.org/protocol/httpbind' to='"+this.authhost+"' wait='"+this._wait+"' rid='"+this._rid+"'";
if (this.secure)
reqstr += " secure='"+this.secure+"'";
if (JSJAC_HAVEKEYS) {
this._keys = new JSJaCKeys(hex_sha1,this.oDbg); // generate first set of keys
key = this._keys.getKey();
reqstr += " newkey='"+key+"'";
}
if (JSJACHBC_USE_BOSH_VER) {
reqstr += " ver='" + JSJACHBC_BOSH_VERSION + "'";
reqstr += " xmlns:xmpp='urn:xmpp:xbosh'";
if (this.authtype == 'sasl' || this.authtype == 'saslanon')
reqstr += " xmpp:version='1.0'";
}
reqstr += "/>";
return reqstr;
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._getStreamID = function(req) {
this.oDbg.log(req.responseText,4);
if (!req.responseXML || !req.responseXML.documentElement) {
this._handleEvent('onerror',JSJaCError('503','cancel','service-unavailable'));
return;
}
var body = req.responseXML.documentElement;
// any session error?
if(body.getAttribute('type') == 'terminate') {
this._handleEvent('onerror',JSJaCError('503','cancel','service-unavailable'));
return;
}
// extract stream id used for non-SASL authentication
if (body.getAttribute('authid')) {
this.streamid = body.getAttribute('authid');
this.oDbg.log("got streamid: "+this.streamid,2);
}
if (!this._parseStreamFeatures(body)) {
this._sendEmpty(JSJaC.bind(this._getStreamID, this));
return;
}
this._timeout = setTimeout(JSJaC.bind(this._process, this),
this.getPollInterval());
if (this.register)
this._doInBandReg();
else
this._doAuth();
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._getSuspendVars = function() {
return ('host,port,secure,_rid,_last_rid,_wait,_min_polling,_inactivity,_hold,_last_requests,_pause').split(',');
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._handleInitialResponse = function(req) {
try {
// This will throw an error on Mozilla when the connection was refused
this.oDbg.log(req.getAllResponseHeaders(),4);
this.oDbg.log(req.responseText,4);
} catch(ex) {
this.oDbg.log("No response",4);
}
if (req.status != 200 || !req.responseXML) {
this.oDbg.log("initial response broken (status: "+req.status+")",1);
this._handleEvent('onerror',JSJaCError('503','cancel','service-unavailable'));
return;
}
var body = req.responseXML.documentElement;
if (!body || body.tagName != 'body' || body.namespaceURI != 'http://jabber.org/protocol/httpbind') {
this.oDbg.log("no body element or incorrect body in initial response",1);
this._handleEvent("onerror",JSJaCError("500","wait","internal-service-error"));
return;
}
// Check for errors from the server
if (body.getAttribute("type") == "terminate") {
this.oDbg.log("invalid response:\n" + req.responseText,1);
clearTimeout(this._timeout); // remove timer
this._connected = false;
this.oDbg.log("Disconnected.",1);
this._handleEvent('ondisconnect');
this._handleEvent('onerror',JSJaCError('503','cancel','service-unavailable'));
return;
}
// get session ID
this._sid = body.getAttribute('sid');
this.oDbg.log("got sid: "+this._sid,2);
// get attributes from response body
if (body.getAttribute('polling'))
this._min_polling = body.getAttribute('polling');
if (body.getAttribute('inactivity'))
this._inactivity = body.getAttribute('inactivity');
if (body.getAttribute('requests'))
this._setHold(body.getAttribute('requests')-1);
this.oDbg.log("set hold to " + this._getHold(),2);
if (body.getAttribute('ver'))
this._bosh_version = body.getAttribute('ver');
if (body.getAttribute('maxpause'))
this._pause = Number.min(body.getAttribute('maxpause'), JSJACHBC_MAXPAUSE);
// must be done after response attributes have been collected
this.setPollInterval(this._timerval);
/* start sending from queue for not polling connections */
this._connected = true;
this._inQto = setInterval(JSJaC.bind(this._checkInQ, this),
JSJAC_CHECKINQUEUEINTERVAL);
this._interval= setInterval(JSJaC.bind(this._checkQueue, this),
JSJAC_CHECKQUEUEINTERVAL);
/* wait for initial stream response to extract streamid needed
* for digest auth
*/
this._getStreamID(req);
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._parseResponse = function(req) {
if (!this.connected() || !req)
return null;
var r = req.r; // the XmlHttpRequest
try {
if (r.status == 404 || r.status == 403) {
// connection manager killed session
this._abort();
return null;
}
if (r.status != 200 || !r.responseXML) {
this._errcnt++;
var errmsg = "invalid response ("+r.status+"):\n" + r.getAllResponseHeaders()+"\n"+r.responseText;
if (!r.responseXML)
errmsg += "\nResponse failed to parse!";
this.oDbg.log(errmsg,1);
if (this._errcnt > JSJAC_ERR_COUNT) {
// abort
this._abort();
return null;
}
if (this.connected()) {
this.oDbg.log("repeating ("+this._errcnt+")",1);
this._setStatus('proto_error_fallback');
// schedule next tick
setTimeout(JSJaC.bind(this._resume, this),
this.getPollInterval());
}
return null;
}
} catch (e) {
this.oDbg.log("XMLHttpRequest error: status not available", 1);
this._errcnt++;
if (this._errcnt > JSJAC_ERR_COUNT) {
// abort
this._abort();
} else {
if (this.connected()) {
this.oDbg.log("repeating ("+this._errcnt+")",1);
this._setStatus('proto_error_fallback');
// schedule next tick
setTimeout(JSJaC.bind(this._resume, this),
this.getPollInterval());
}
}
return null;
}
var body = r.responseXML.documentElement;
if (!body || body.tagName != 'body' ||
body.namespaceURI != 'http://jabber.org/protocol/httpbind') {
this.oDbg.log("invalid response:\n" + r.responseText,1);
clearTimeout(this._timeout); // remove timer
clearInterval(this._interval);
clearInterval(this._inQto);
this._connected = false;
this.oDbg.log("Disconnected.",1);
this._handleEvent('ondisconnect');
this._setStatus('internal_server_error');
this._handleEvent('onerror',
JSJaCError('500','wait','internal-server-error'));
return null;
}
if (typeof(req.rid) != 'undefined' && this._last_requests[req.rid]) {
if (this._last_requests[req.rid].handled) {
this.oDbg.log("already handled "+req.rid,2);
return null;
} else
this._last_requests[req.rid].handled = true;
}
// Check for errors from the server
if (body.getAttribute("type") == "terminate") {
// read condition
var condition = body.getAttribute('condition');
if (condition != "item-not-found") {
this.oDbg.log("session terminated:\n" + r.responseText,1);
clearTimeout(this._timeout); // remove timer
clearInterval(this._interval);
clearInterval(this._inQto);
try {
DataStore.removeDB(MINI_HASH, 'jsjac', 'state');
} catch (e) {}
this._connected = false;
if (condition == "remote-stream-error")
if (body.getElementsByTagName("conflict").length > 0)
this._setStatus("session-terminate-conflict");
if (condition == null)
condition = 'session-terminate';
this._handleEvent('onerror',JSJaCError('503','cancel',condition));
this.oDbg.log("Aborting remaining connections",4);
for (var i=0; i<this._hold+1; i++) {
try {
this._req[i].r.abort();
} catch(e) { this.oDbg.log(e, 1); }
}
this.oDbg.log("parseResponse done with terminating", 3);
this.oDbg.log("Disconnected.",1);
this._handleEvent('ondisconnect');
} else {
this._errcnt++;
if (this._errcnt > JSJAC_ERR_COUNT)
this._abort();
}
return null;
}
// no error
this._errcnt = 0;
return r.responseXML.documentElement;
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._reInitStream = function(cb) {
// tell http binding to reinit stream with/before next request
this._reinit = true;
this._sendEmpty(this._prepReInitStreamWait(cb));
};
JSJaCHttpBindingConnection.prototype._prepReInitStreamWait = function(cb) {
return JSJaC.bind(function(req) {
this._reInitStreamWait(req, cb);
}, this);
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._reInitStreamWait = function(req, cb) {
this.oDbg.log("checking for stream features");
var doc = req.responseXML.documentElement;
this.oDbg.log(doc);
if (doc.getElementsByTagNameNS) {
this.oDbg.log("checking with namespace");
var features = doc.getElementsByTagNameNS('http://etherx.jabber.org/streams',
'features').item(0);
if (features) {
var bind = features.getElementsByTagNameNS('urn:ietf:params:xml:ns:xmpp-bind',
'bind').item(0);
}
} else {
var featuresNL = doc.getElementsByTagName('stream:features');
for (var i=0, l=featuresNL.length; i<l; i++) {
if (featuresNL.item(i).namespaceURI == 'http://etherx.jabber.org/streams' ||
featuresNL.item(i).getAttribute('xmlns') ==
'http://etherx.jabber.org/streams') {
var features = featuresNL.item(i);
break;
}
}
if (features) {
var bind = features.getElementsByTagName('bind');
for (var i=0, l=bind.length; i<l; i++) {
if (bind.item(i).namespaceURI == 'urn:ietf:params:xml:ns:xmpp-bind' ||
bind.item(i).getAttribute('xmlns') ==
'urn:ietf:params:xml:ns:xmpp-bind') {
bind = bind.item(i);
break;
}
}
}
}
this.oDbg.log(features);
this.oDbg.log(bind);
if (features) {
if (bind) {
cb();
} else {
this.oDbg.log("no bind feature - giving up",1);
this._handleEvent('onerror',JSJaCError('503','cancel',"service-unavailable"));
this._connected = false;
this.oDbg.log("Disconnected.",1);
this._handleEvent('ondisconnect');
}
} else {
// wait
this._sendEmpty(this._prepReInitStreamWait(cb));
}
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._resume = function() {
/* make sure to repeat last request as we can be sure that
* it had failed (only if we're not using the 'pause' attribute
*/
if (this._pause == 0 && this._rid >= this._last_rid)
this._rid = this._last_rid-1;
this._process();
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._setHold = function(hold) {
if (!hold || isNaN(hold) || hold < 0)
hold = 0;
else if (hold > JSJACHBC_MAX_HOLD)
hold = JSJACHBC_MAX_HOLD;
this._hold = hold;
return this._hold;
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._setupRequest = function(async) {
var req = new Object();
var r = XmlHttp.create();
try {
r.open("POST",this._httpbase,async);
r.setRequestHeader('Content-Type','text/xml; charset=utf-8');
} catch(e) { this.oDbg.log(e,1); }
req.r = r;
this._rid++;
req.rid = this._rid;
return req;
};
/**
* @private
*/
JSJaCHttpBindingConnection.prototype._suspend = function() {
if (this._pause == 0)
return; // got nothing to do
var slot = this._getFreeSlot();
// Intentionally synchronous
this._req[slot] = this._setupRequest(false);
var reqstr = "<body xml:lang='"+XML_LANG+"' pause='"+this._pause+"' xmlns='http://jabber.org/protocol/httpbind' sid='"+this._sid+"' rid='"+this._rid+"'";
if (JSJAC_HAVEKEYS) {
reqstr += " key='"+this._keys.getKey()+"'";
if (this._keys.lastKey()) {
this._keys = new JSJaCKeys(hex_sha1,this.oDbg);
reqstr += " newkey='"+this._keys.getKey()+"'";
}
}
reqstr += ">";
while (this._pQueue.length) {
var curNode = this._pQueue[0];
reqstr += curNode;
this._pQueue = this._pQueue.slice(1,this._pQueue.length);
}
//reqstr += "<presence type='unavailable' xmlns='jabber:client'/>";
reqstr += "</body>";
this.oDbg.log("Disconnecting: " + reqstr,4);
this._req[slot].r.send(reqstr);
};
/**
* @author Janusz Dziemidowicz rraptorr@nails.eu.org
* @fileoverview All stuff related to WebSocket
* <pre>
* The WebSocket protocol is a bit of a mess. Various, incompatible,
* protocol drafts were implemented in browsers. Fortunately, recently
* a finished protocol was released in RFC6455. Further description
* assumes RFC6455 WebSocket protocol version.
*
* WebSocket browser support. Current (November 2012) browser status:
* - Chrome 16+ - works properly and supports RFC6455
* - Firefox 16+ - works properly and support RFC6455 (ealier versions
* have problems with proxies)
* - Opera 12.10 - supports RFC6455, but does not work at all if a
* proxy is configured (earlier versions do not support RFC6455)
* - Internet Explorer 10+ - works properly and supports RFC6455
*
* Due to the above status, this code is currently recommended on
* Chrome 16+, Firefox 16+ and Internet Explorer 10+. Using it on
* other browsers is discouraged.
*
* Please also note that some users are only able to connect to ports
* 80 and 443. Port 80 is sometimes intercepted by transparent HTTP
* proxies, which mostly does not support WebSocket, so port 443 is
* the best choice currently (it does not have to be
* encrypted). WebSocket also usually does not work well with reverse
* proxies, be sure to make extensive tests if you use one.
*
* There is no standard for XMPP over WebSocket. However, there is a
* draft (http://tools.ietf.org/html/draft-ietf-xmpp-websocket-00) and
* this implementation follows it.
*
* Tested servers:
*
* - node-xmpp-bosh (https://github.com/dhruvbird/node-xmpp-bosh) -
* supports RFC6455 and works with no problems since 0.6.1, it also
* transparently uses STARTTLS if necessary
* - wxg (https://github.com/Gordin/wxg) - supports RFC6455 and works
* with no problems, but cannot connect to servers requiring
* STARTTLS (original wxg at https://github.com/hocken/wxg has some
* issues, that were fixed by Gordin).
* - ejabberd-websockets
* (https://github.com/superfeedr/ejabberd-websockets) - does not
* support RFC6455 hence it does not work, adapting it to support
* RFC6455 should be quite easy for anyone knowing Erlang (some work
* in progress can be found on github)
* - Openfire (http://www.igniterealtime.org/projects/openfire/) -
* unofficial plugin is available, but it lacks support
* for RFC6455 hence it does not work
* - Apache Vysper (http://mina.apache.org/vysper/) - does
* not support RFC6455 hence does not work
* - Tigase (http://www.tigase.org/) - works fine since 5.2.0.
* - MongooseIM (https://github.com/esl/ejabberd) - a fork of ejabberd
* with support for XMPP over Websockets.
* </pre>
*/
/*exported JSJaCWebSocketConnection */
/**
* Instantiates a WebSocket session.
* @class Implementation of {@link http://tools.ietf.org/html/draft-ietf-xmpp-websocket-00 | An XMPP Sub-protocol for WebSocket}.
* @extends JSJaCConnection
* @constructor
* @param {Object} oArg connection properties.
* @param {string} oArg.httpbase WebSocket connection endpoint (i.e. ws://localhost:5280)
* @param {JSJaCDebugger} [oArg.oDbg] A reference to a debugger implementing the JSJaCDebugger interface.
*/
function JSJaCWebSocketConnection(oArg) {
this.base = JSJaCConnection;
this.base(oArg);
this._ws = null;
this.registerHandler('onerror', JSJaC.bind(this._cleanupWebSocket, this));
}
JSJaCWebSocketConnection.prototype = new JSJaCConnection();
JSJaCWebSocketConnection.prototype._cleanupWebSocket = function() {
if (this._ws !== null) {
this._ws.onclose = null;
this._ws.onerror = null;
this._ws.onopen = null;
this._ws.onmessage = null;
this._ws.close();
this._ws = null;
}
};
/**
* Connect to a jabber/XMPP server.
* @param {Object} oArg The configuration to be used for connecting.
* @param {string} oArg.domain The domain name of the XMPP service.
* @param {string} oArg.username The username (nodename) to be logged in with.
* @param {string} oArg.resource The resource to identify the login with.
* @param {string} oArg.password The user's password.
* @param {string} [oArg.authzid] Authorization identity. Used to act as another user, in most cases not needed and rarely supported by servers. If present should be a bare JID (user@example.net).
* @param {boolean} [oArg.allow_plain] Whether to allow plain text logins.
* @param {boolean} [oArg.allow_scram] Whether to allow SCRAM-SHA-1 authentication. Please note that it is quite slow, do some testing on all required browsers before enabling.
* @param {boolean} [oArg.register] Whether to register a new account.
* @param {string} [oArg.authhost] The host that handles the actualy authorization. There are cases where this is different from the settings above, e.g. if there's a service that provides anonymous logins at 'anon.example.org'.
* @param {string} [oArg.authtype] Must be one of 'sasl' (default), 'nonsasl', 'saslanon', or 'anonymous'.
* @param {string} [oArg.xmllang] The requested language for this login. Typically XMPP server try to respond with error messages and the like in this language if available.
*/
JSJaCWebSocketConnection.prototype.connect = function(oArg) {
this._setStatus('connecting');
this.domain = oArg.domain || 'localhost';
this.username = oArg.username;
this.resource = oArg.resource;
this.pass = oArg.password || oArg.pass;
this.authzid = oArg.authzid || '';
this.register = oArg.register;
this.authhost = oArg.authhost || this.domain;
this.authtype = oArg.authtype || 'sasl';
this.jid = this.username + '@' + this.domain;
this.fulljid = this.jid + '/' + this.resource;
if (oArg.allow_plain) {
this._allow_plain = oArg.allow_plain;
} else {
this._allow_plain = JSJAC_ALLOW_PLAIN;
}
if (oArg.allow_scram) {
this._allow_scram = oArg.allow_scram;
} else {
this._allow_scram = JSJAC_ALLOW_SCRAM;
}
if (oArg.xmllang && oArg.xmllang !== '') {
this._xmllang = oArg.xmllang;
} else {
this._xmllang = 'en';
}
if (typeof WebSocket === 'undefined') {
this._handleEvent('onerror', JSJaCError('503', 'cancel', 'service-unavailable'));
return;
}
this._ws = new WebSocket(this._httpbase, 'xmpp');
this._ws.onclose = JSJaC.bind(this._onclose, this);
this._ws.onerror = JSJaC.bind(this._onerror, this);
this._ws.onopen = JSJaC.bind(this._onopen, this);
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._onopen = function() {
var reqstr = this._getInitialRequestString();
this.oDbg.log(reqstr, 4);
this._ws.onmessage = JSJaC.bind(this._handleOpenStream, this);
this._ws.send(reqstr);
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._handleOpenStream = function(event) {
var open, stream;
this.oDbg.log(event.data, 4);
open = event.data;
// skip XML prolog if any
open = open.substr(open.indexOf('<stream:stream'));
if (open.substr(-2) !== '/>' && open.substr(-16) !== '</stream:stream>') {
// some servers send closed opening tag, some not
open += '</stream:stream>';
}
stream = this._parseXml(open);
if(!stream) {
this._handleEvent('onerror', JSJaCError('503', 'cancel', 'service-unavailable'));
return;
}
// extract stream id used for non-SASL authentication
this.streamid = stream.getAttribute('id');
this.oDbg.log('got streamid: ' + this.streamid, 2);
this._ws.onmessage = JSJaC.bind(this._handleInitialResponse, this);
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._handleInitialResponse = function(event) {
var doc = this._parseXml(event.data);
if (!this._parseStreamFeatures(doc)) {
this._handleEvent('onerror', JSJaCError('503', 'cancel', 'service-unavailable'));
return;
}
this._connected = true;
if (this.register) {
this._doInBandReg();
} else {
this._doAuth();
}
};
/**
* Disconnect from XMPP service
*
* When called upon leaving a page needs to use 'onbeforeunload' event
* as Websocket would be closed already otherwise prior to this call.
*/
JSJaCWebSocketConnection.prototype.disconnect = function() {
this._setStatus('disconnecting');
if (!this.connected()) {
return;
}
this._connected = false;
this.oDbg.log('Disconnecting', 4);
this._sendRaw('</stream:stream>', JSJaC.bind(this._cleanupWebSocket, this));
this.oDbg.log('Disconnected', 2);
this._handleEvent('ondisconnect');
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._onclose = function() {
this.oDbg.log('websocket closed', 2);
if (this._status !== 'disconnecting') {
this._connected = false;
this._handleEvent('onerror', JSJaCError('503', 'cancel', 'service-unavailable'));
}
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._onerror = function() {
this.oDbg.log('websocket error', 1);
this._connected = false;
this._handleEvent('onerror', JSJaCError('503', 'cancel', 'service-unavailable'));
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._onmessage = function(event) {
var stanza, node, packet;
stanza = event.data;
this._setStatus('processing');
if (!stanza || stanza === '') {
return;
}
// WebSocket works only on modern browsers, so it is safe to assume
// that namespaceURI and getElementsByTagNameNS are available.
node = this._parseXml(stanza);
if (node.namespaceURI === NS_STREAM && node.localName === 'error') {
if (node.getElementsByTagNameNS(NS_STREAMS, 'conflict').length > 0) {
this._setStatus('session-terminate-conflict');
}
this._connected = false;
this._handleEvent('onerror', JSJaCError('503', 'cancel', 'remote-stream-error'));
return;
}
packet = JSJaCPacket.wrapNode(node);
if (!packet) {
return;
}
this.oDbg.log('async recv: ' + event.data, 4);
this._handleEvent('packet_in', packet);
if (packet.pType && !this._handlePID(packet)) {
this._handleEvent(packet.pType() + '_in', packet);
this._handleEvent(packet.pType(), packet);
}
};
/**
* Parse single XML stanza. As proposed in XMPP Sub-protocol for
* WebSocket draft, it assumes that every stanza is sent in a separate
* WebSocket frame, which greatly simplifies parsing.
* @private
*/
JSJaCWebSocketConnection.prototype._parseXml = function(s) {
var doc;
this.oDbg.log('Parsing: ' + s, 4);
try {
doc = XmlDocument.create('stream', NS_STREAM);
if(s.trim() == '</stream:stream>') {
// Consider session as closed
this.oDbg.log("session terminated", 1);
clearTimeout(this._timeout); // remove timer
clearInterval(this._interval);
clearInterval(this._inQto);
try {
DataStore.removeDB(MINI_HASH, 'jsjac', 'state');
} catch (e) {}
this._connected = false;
this._handleEvent('onerror',JSJaCError('503','cancel','session-terminate'));
this.oDbg.log("Disconnected.",1);
this._handleEvent('ondisconnect');
return null;
} else if(s.indexOf('<stream:stream') === -1) {
// Wrap every stanza into stream element, so that XML namespaces work properly.
doc.loadXML("<stream:stream xmlns:stream='" + NS_STREAM + "' xmlns='jabber:client'>" + s + "</stream:stream>");
return doc.documentElement.firstChild;
} else {
doc.loadXML(s);
return doc.documentElement;
}
} catch (e) {
this.oDbg.log('Error: ' + e);
this._connected = false;
this._handleEvent('onerror', JSJaCError('500', 'wait', 'internal-service-error'));
}
return null;
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._getInitialRequestString = function() {
var streamto, reqstr;
streamto = this.domain;
if (this.authhost) {
streamto = this.authhost;
}
reqstr = '<stream:stream to="' + streamto + '" xmlns="jabber:client" xmlns:stream="' + NS_STREAM + '"';
if (this.authtype === 'sasl' || this.authtype === 'saslanon') {
reqstr += ' version="1.0"';
}
reqstr += '>';
return reqstr;
};
JSJaCWebSocketConnection.prototype.send = function(packet, cb, arg) {
this._ws.onmessage = JSJaC.bind(this._onmessage, this);
if (!packet || !packet.pType) {
this.oDbg.log('no packet: ' + packet, 1);
return false;
}
if (!this.connected()) {
return false;
}
// remember id for response if callback present
if (cb) {
if (!packet.getID()) {
packet.setID('JSJaCID_' + this._ID++); // generate an ID
}
// register callback with id
this._registerPID(packet, cb, arg);
}
try {
this._handleEvent(packet.pType() + '_out', packet);
this._handleEvent('packet_out', packet);
this._ws.send(packet.xml());
} catch (e) {
this.oDbg.log(e.toString(), 1);
return false;
}
return true;
};
/**
* Resuming connections is not supported by WebSocket.
*/
JSJaCWebSocketConnection.prototype.resume = function() {
return false; // not supported for websockets
};
/**
* Suspending connections is not supported by WebSocket.
*/
JSJaCWebSocketConnection.prototype.suspend = function() {
return false; // not supported for websockets
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._doSASLAuthScramSha1S1 = function(event) {
var el = this._parseXml(event.data);
return JSJaC.bind(JSJaCConnection.prototype._doSASLAuthScramSha1S1, this)(el);
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._doSASLAuthScramSha1S2 = function(event) {
var el = this._parseXml(event.data);
return JSJaC.bind(JSJaCConnection.prototype._doSASLAuthScramSha1S2, this)(el);
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._doSASLAuthDigestMd5S1 = function(event) {
var el = this._parseXml(event.data);
return JSJaC.bind(JSJaCConnection.prototype._doSASLAuthDigestMd5S1, this)(el);
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._doSASLAuthDigestMd5S2 = function(event) {
var el = this._parseXml(event.data);
return JSJaC.bind(JSJaCConnection.prototype._doSASLAuthDigestMd5S2, this)(el);
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._doSASLAuthDone = function(event) {
var el = this._parseXml(event.data);
return JSJaC.bind(JSJaCConnection.prototype._doSASLAuthDone, this)(el);
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._reInitStream = function(cb) {
var reqstr, streamto = this.domain;
if (this.authhost) {
streamto = this.authhost;
}
reqstr = '<stream:stream xmlns:stream="' + NS_STREAM + '" xmlns="jabber:client" to="' + streamto + '" version="1.0">';
this._sendRaw(reqstr, cb);
};
/**
* @private
*/
JSJaCWebSocketConnection.prototype._sendRaw = function(xml, cb, arg) {
if (!this._ws) {
// Socket might have been closed already because of an 'onerror'
// event. In this case we'd try to send a closing stream element
// 'ondisconnect' which won't work.
return false;
}
if (cb) {
this._ws.onmessage = JSJaC.bind(cb, this, arg);
}
this._ws.send(xml);
return true;
};
/*exported JSJaCUtils */
/**
* Various utilities put together so that they don't pollute global
* name space.
* @namespace
*/
var JSJaCUtils = {
/**
* XOR two strings of equal length.
* @param {string} s1 first string to XOR.
* @param {string} s2 second string to XOR.
* @return {string} s1 ^ s2.
*/
xor: function(s1, s2) {
/*jshint bitwise: false */
if(!s1) {
return s2;
}
if(!s2) {
return s1;
}
var result = '';
for(var i = 0; i < s1.length; i++) {
result += String.fromCharCode(s1.charCodeAt(i) ^ s2.charCodeAt(i));
}
return result;
},
/**
* Create nonce value of given size.
* @param {int} size size of the nonce that should be generated.
* @return {string} generated nonce.
*/
cnonce: function(size) {
var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
var cnonce = '';
for (var i = 0; i < size; i++) {
cnonce += tab.charAt(Math.round(Math.random(new Date().getTime()) * (tab.length - 1)));
}
return cnonce;
},
/**
* Current timestamp.
* @return Seconds since 1.1.1970.
* @type int
*/
now: function() {
if (Date.now && typeof Date.now == 'function') {
return Date.now();
} else {
return new Date().getTime();
}
}
};