ref: master
public/javascripts/vendor/strophejs-1.1.3/strophe.js
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// This code was written by Tyler Akins and has been placed in the // public domain. It would be nice if you left this header intact. // Base64 code from Tyler Akins -- http://rumkin.com var Base64 = (function () { var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; var obj = { /** * Encodes a string in base64 * @param {String} input The string to encode in base64. */ encode: function (input) { var output = ""; var chr1, chr2, chr3; var enc1, enc2, enc3, enc4; var i = 0; do { chr1 = input.charCodeAt(i++); chr2 = input.charCodeAt(i++); chr3 = input.charCodeAt(i++); enc1 = chr1 >> 2; enc2 = ((chr1 & 3) << 4) | (chr2 >> 4); enc3 = ((chr2 & 15) << 2) | (chr3 >> 6); enc4 = chr3 & 63; if (isNaN(chr2)) { enc3 = enc4 = 64; } else if (isNaN(chr3)) { enc4 = 64; } output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + keyStr.charAt(enc3) + keyStr.charAt(enc4); } while (i < input.length); return output; }, /** * Decodes a base64 string. * @param {String} input The string to decode. */ decode: function (input) { var output = ""; var chr1, chr2, chr3; var enc1, enc2, enc3, enc4; var i = 0; // remove all characters that are not A-Z, a-z, 0-9, +, /, or = input = input.replace(/[^A-Za-z0-9\+\/\=]/g, ""); do { enc1 = keyStr.indexOf(input.charAt(i++)); enc2 = keyStr.indexOf(input.charAt(i++)); enc3 = keyStr.indexOf(input.charAt(i++)); enc4 = keyStr.indexOf(input.charAt(i++)); chr1 = (enc1 << 2) | (enc2 >> 4); chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); chr3 = ((enc3 & 3) << 6) | enc4; output = output + String.fromCharCode(chr1); if (enc3 != 64) { output = output + String.fromCharCode(chr2); } if (enc4 != 64) { output = output + String.fromCharCode(chr3); } } while (i < input.length); return output; } }; return obj; })(); /* * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined * in FIPS PUB 180-1 * Version 2.1a Copyright Paul Johnston 2000 - 2002. * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet * Distributed under the BSD License * See http://pajhome.org.uk/crypt/md5 for details. */ /* Some functions and variables have been stripped for use with Strophe */ /* * These are the functions you'll usually want to call * They take string arguments and return either hex or base-64 encoded strings */ function b64_sha1(s){return binb2b64(core_sha1(str2binb(s),s.length * 8));} function str_sha1(s){return binb2str(core_sha1(str2binb(s),s.length * 8));} 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));} /* * 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 * 8); } 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 * 8); 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 = 255; for (var i = 0; i < str.length * 8; i += 8) { bin[i>>5] |= (str.charCodeAt(i / 8) & mask) << (24 - i%32); } return bin; } /* * Convert an array of big-endian words to a string */ function binb2str(bin) { var str = ""; var mask = 255; for (var i = 0; i < bin.length * 32; i += 8) { str += String.fromCharCode((bin[i>>5] >>> (24 - i%32)) & mask); } 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 += "="; } else { str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); } } } return str; } /* * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message * Digest Algorithm, as defined in RFC 1321. * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002. * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet * Distributed under the BSD License * See http://pajhome.org.uk/crypt/md5 for more info. */ /* * Everything that isn't used by Strophe has been stripped here! */ var MD5 = (function () { /* * Add integers, wrapping at 2^32. This uses 16-bit operations internally * to work around bugs in some JS interpreters. */ var safe_add = function (x, y) { var lsw = (x & 0xFFFF) + (y & 0xFFFF); var msw = (x >> 16) + (y >> 16) + (lsw >> 16); return (msw << 16) | (lsw & 0xFFFF); }; /* * Bitwise rotate a 32-bit number to the left. */ var bit_rol = function (num, cnt) { return (num << cnt) | (num >>> (32 - cnt)); }; /* * Convert a string to an array of little-endian words */ var str2binl = function (str) { var bin = []; for(var i = 0; i < str.length * 8; i += 8) { bin[i>>5] |= (str.charCodeAt(i / 8) & 255) << (i%32); } return bin; }; /* * Convert an array of little-endian words to a string */ var binl2str = function (bin) { var str = ""; for(var i = 0; i < bin.length * 32; i += 8) { str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & 255); } return str; }; /* * Convert an array of little-endian words to a hex string. */ var binl2hex = function (binarray) { var hex_tab = "0123456789abcdef"; var str = ""; for(var i = 0; i < binarray.length * 4; i++) { str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) + hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 )) & 0xF); } return str; }; /* * These functions implement the four basic operations the algorithm uses. */ var md5_cmn = function (q, a, b, x, s, t) { return safe_add(bit_rol(safe_add(safe_add(a, q),safe_add(x, t)), s),b); }; var md5_ff = function (a, b, c, d, x, s, t) { return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); }; var md5_gg = function (a, b, c, d, x, s, t) { return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); }; var md5_hh = function (a, b, c, d, x, s, t) { return md5_cmn(b ^ c ^ d, a, b, x, s, t); }; var md5_ii = function (a, b, c, d, x, s, t) { return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); }; /* * Calculate the MD5 of an array of little-endian words, and a bit length */ var core_md5 = function (x, len) { /* append padding */ x[len >> 5] |= 0x80 << ((len) % 32); x[(((len + 64) >>> 9) << 4) + 14] = len; var a = 1732584193; var b = -271733879; var c = -1732584194; var d = 271733878; var olda, oldb, oldc, oldd; for (var i = 0; i < x.length; i += 16) { olda = a; oldb = b; oldc = c; oldd = d; a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936); d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586); c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819); b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330); a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897); d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426); c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341); b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983); a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416); d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417); c = md5_ff(c, d, a, b, x[i+10], 17, -42063); b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162); a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682); d = md5_ff(d, a, b, c, x[i+13], 12, -40341101); c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290); b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329); a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510); d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632); c = md5_gg(c, d, a, b, x[i+11], 14, 643717713); b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302); a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691); d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083); c = md5_gg(c, d, a, b, x[i+15], 14, -660478335); b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848); a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438); d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690); c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961); b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501); a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467); d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784); c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473); b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734); a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558); d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463); c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562); b = md5_hh(b, c, d, a, x[i+14], 23, -35309556); a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060); d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353); c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632); b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640); a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174); d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222); c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979); b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189); a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487); d = md5_hh(d, a, b, c, x[i+12], 11, -421815835); c = md5_hh(c, d, a, b, x[i+15], 16, 530742520); b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651); a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844); d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415); c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905); b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055); a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571); d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606); c = md5_ii(c, d, a, b, x[i+10], 15, -1051523); b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799); a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359); d = md5_ii(d, a, b, c, x[i+15], 10, -30611744); c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380); b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649); a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070); d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379); c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259); b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551); a = safe_add(a, olda); b = safe_add(b, oldb); c = safe_add(c, oldc); d = safe_add(d, oldd); } return [a, b, c, d]; }; var obj = { /* * These are the functions you'll usually want to call. * They take string arguments and return either hex or base-64 encoded * strings. */ hexdigest: function (s) { return binl2hex(core_md5(str2binl(s), s.length * 8)); }, hash: function (s) { return binl2str(core_md5(str2binl(s), s.length * 8)); } }; return obj; })(); /* This program is distributed under the terms of the MIT license. Please see the LICENSE file for details. Copyright 2006-2008, OGG, LLC */ /* jshint undef: true, unused: true:, noarg: true, latedef: true */ /*global document, window, setTimeout, clearTimeout, console, ActiveXObject, Base64, MD5, DOMParser */ // from sha1.js /*global core_hmac_sha1, binb2str, str_hmac_sha1, str_sha1, b64_hmac_sha1*/ /** File: strophe.js * A JavaScript library for XMPP BOSH/XMPP over Websocket. * * This is the JavaScript version of the Strophe library. Since JavaScript * had no facilities for persistent TCP connections, this library uses * Bidirectional-streams Over Synchronous HTTP (BOSH) to emulate * a persistent, stateful, two-way connection to an XMPP server. More * information on BOSH can be found in XEP 124. * * This version of Strophe also works with WebSockets. * For more information on XMPP-over WebSocket see this RFC draft: * http://tools.ietf.org/html/draft-ietf-xmpp-websocket-00 */ /** PrivateFunction: Function.prototype.bind * Bind a function to an instance. * * This Function object extension method creates a bound method similar * to those in Python. This means that the 'this' object will point * to the instance you want. See * <a href='https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Function/bind'>MDC's bind() documentation</a> and * <a href='http://benjamin.smedbergs.us/blog/2007-01-03/bound-functions-and-function-imports-in-javascript/'>Bound Functions and Function Imports in JavaScript</a> * for a complete explanation. * * This extension already exists in some browsers (namely, Firefox 3), but * we provide it to support those that don't. * * Parameters: * (Object) obj - The object that will become 'this' in the bound function. * (Object) argN - An option argument that will be prepended to the * arguments given for the function call * * Returns: * The bound function. */ if (!Function.prototype.bind) { Function.prototype.bind = function (obj /*, arg1, arg2, ... */) { var func = this; var _slice = Array.prototype.slice; var _concat = Array.prototype.concat; var _args = _slice.call(arguments, 1); return function () { return func.apply(obj ? obj : this, _concat.call(_args, _slice.call(arguments, 0))); }; }; } /** PrivateFunction: Array.prototype.indexOf * Return the index of an object in an array. * * This function is not supplied by some JavaScript implementations, so * we provide it if it is missing. This code is from: * http://developer.mozilla.org/En/Core_JavaScript_1.5_Reference:Objects:Array:indexOf * * Parameters: * (Object) elt - The object to look for. * (Integer) from - The index from which to start looking. (optional). * * Returns: * The index of elt in the array or -1 if not found. */ if (!Array.prototype.indexOf) { Array.prototype.indexOf = function(elt /*, from*/) { var len = this.length; var from = Number(arguments[1]) || 0; from = (from < 0) ? Math.ceil(from) : Math.floor(from); if (from < 0) { from += len; } for (; from < len; from++) { if (from in this && this[from] === elt) { return from; } } return -1; }; } /* All of the Strophe globals are defined in this special function below so * that references to the globals become closures. This will ensure that * on page reload, these references will still be available to callbacks * that are still executing. */ (function (callback) { var Strophe; /** Function: $build * Create a Strophe.Builder. * This is an alias for 'new Strophe.Builder(name, attrs)'. * * Parameters: * (String) name - The root element name. * (Object) attrs - The attributes for the root element in object notation. * * Returns: * A new Strophe.Builder object. */ function $build(name, attrs) { return new Strophe.Builder(name, attrs); } /** Function: $msg * Create a Strophe.Builder with a <message/> element as the root. * * Parmaeters: * (Object) attrs - The <message/> element attributes in object notation. * * Returns: * A new Strophe.Builder object. */ function $msg(attrs) { return new Strophe.Builder("message", attrs); } /** Function: $iq * Create a Strophe.Builder with an <iq/> element as the root. * * Parameters: * (Object) attrs - The <iq/> element attributes in object notation. * * Returns: * A new Strophe.Builder object. */ function $iq(attrs) { return new Strophe.Builder("iq", attrs); } /** Function: $pres * Create a Strophe.Builder with a <presence/> element as the root. * * Parameters: * (Object) attrs - The <presence/> element attributes in object notation. * * Returns: * A new Strophe.Builder object. */ function $pres(attrs) { return new Strophe.Builder("presence", attrs); } /** Class: Strophe * An object container for all Strophe library functions. * * This class is just a container for all the objects and constants * used in the library. It is not meant to be instantiated, but to * provide a namespace for library objects, constants, and functions. */ Strophe = { /** Constant: VERSION * The version of the Strophe library. Unreleased builds will have * a version of head-HASH where HASH is a partial revision. */ VERSION: "1.1.3", /** Constants: XMPP Namespace Constants * Common namespace constants from the XMPP RFCs and XEPs. * * NS.HTTPBIND - HTTP BIND namespace from XEP 124. * NS.BOSH - BOSH namespace from XEP 206. * NS.CLIENT - Main XMPP client namespace. * NS.AUTH - Legacy authentication namespace. * NS.ROSTER - Roster operations namespace. * NS.PROFILE - Profile namespace. * NS.DISCO_INFO - Service discovery info namespace from XEP 30. * NS.DISCO_ITEMS - Service discovery items namespace from XEP 30. * NS.MUC - Multi-User Chat namespace from XEP 45. * NS.SASL - XMPP SASL namespace from RFC 3920. * NS.STREAM - XMPP Streams namespace from RFC 3920. * NS.BIND - XMPP Binding namespace from RFC 3920. * NS.SESSION - XMPP Session namespace from RFC 3920. * NS.XHTML_IM - XHTML-IM namespace from XEP 71. * NS.XHTML - XHTML body namespace from XEP 71. */ NS: { HTTPBIND: "http://jabber.org/protocol/httpbind", BOSH: "urn:xmpp:xbosh", CLIENT: "jabber:client", AUTH: "jabber:iq:auth", ROSTER: "jabber:iq:roster", PROFILE: "jabber:iq:profile", DISCO_INFO: "http://jabber.org/protocol/disco#info", DISCO_ITEMS: "http://jabber.org/protocol/disco#items", MUC: "http://jabber.org/protocol/muc", SASL: "urn:ietf:params:xml:ns:xmpp-sasl", STREAM: "http://etherx.jabber.org/streams", BIND: "urn:ietf:params:xml:ns:xmpp-bind", SESSION: "urn:ietf:params:xml:ns:xmpp-session", VERSION: "jabber:iq:version", STANZAS: "urn:ietf:params:xml:ns:xmpp-stanzas", XHTML_IM: "http://jabber.org/protocol/xhtml-im", XHTML: "http://www.w3.org/1999/xhtml" }, /** Constants: XHTML_IM Namespace * contains allowed tags, tag attributes, and css properties. * Used in the createHtml function to filter incoming html into the allowed XHTML-IM subset. * See http://xmpp.org/extensions/xep-0071.html#profile-summary for the list of recommended * allowed tags and their attributes. */ XHTML: { tags: ['a','blockquote','br','cite','em','img','li','ol','p','span','strong','ul','body'], attributes: { 'a': ['href'], 'blockquote': ['style'], 'br': [], 'cite': ['style'], 'em': [], 'img': ['src', 'alt', 'style', 'height', 'width'], 'li': ['style'], 'ol': ['style'], 'p': ['style'], 'span': ['style'], 'strong': [], 'ul': ['style'], 'body': [] }, css: ['background-color','color','font-family','font-size','font-style','font-weight','margin-left','margin-right','text-align','text-decoration'], validTag: function(tag) { for(var i = 0; i < Strophe.XHTML.tags.length; i++) { if(tag == Strophe.XHTML.tags[i]) { return true; } } return false; }, validAttribute: function(tag, attribute) { if(typeof Strophe.XHTML.attributes[tag] !== 'undefined' && Strophe.XHTML.attributes[tag].length > 0) { for(var i = 0; i < Strophe.XHTML.attributes[tag].length; i++) { if(attribute == Strophe.XHTML.attributes[tag][i]) { return true; } } } return false; }, validCSS: function(style) { for(var i = 0; i < Strophe.XHTML.css.length; i++) { if(style == Strophe.XHTML.css[i]) { return true; } } return false; } }, /** Constants: Connection Status Constants * Connection status constants for use by the connection handler * callback. * * Status.ERROR - An error has occurred * Status.CONNECTING - The connection is currently being made * Status.CONNFAIL - The connection attempt failed * Status.AUTHENTICATING - The connection is authenticating * Status.AUTHFAIL - The authentication attempt failed * Status.CONNECTED - The connection has succeeded * Status.DISCONNECTED - The connection has been terminated * Status.DISCONNECTING - The connection is currently being terminated * Status.ATTACHED - The connection has been attached */ Status: { ERROR: 0, CONNECTING: 1, CONNFAIL: 2, AUTHENTICATING: 3, AUTHFAIL: 4, CONNECTED: 5, DISCONNECTED: 6, DISCONNECTING: 7, ATTACHED: 8 }, /** Constants: Log Level Constants * Logging level indicators. * * LogLevel.DEBUG - Debug output * LogLevel.INFO - Informational output * LogLevel.WARN - Warnings * LogLevel.ERROR - Errors * LogLevel.FATAL - Fatal errors */ LogLevel: { DEBUG: 0, INFO: 1, WARN: 2, ERROR: 3, FATAL: 4 }, /** PrivateConstants: DOM Element Type Constants * DOM element types. * * ElementType.NORMAL - Normal element. * ElementType.TEXT - Text data element. * ElementType.FRAGMENT - XHTML fragment element. */ ElementType: { NORMAL: 1, TEXT: 3, CDATA: 4, FRAGMENT: 11 }, /** PrivateConstants: Timeout Values * Timeout values for error states. These values are in seconds. * These should not be changed unless you know exactly what you are * doing. * * TIMEOUT - Timeout multiplier. A waiting request will be considered * failed after Math.floor(TIMEOUT * wait) seconds have elapsed. * This defaults to 1.1, and with default wait, 66 seconds. * SECONDARY_TIMEOUT - Secondary timeout multiplier. In cases where * Strophe can detect early failure, it will consider the request * failed if it doesn't return after * Math.floor(SECONDARY_TIMEOUT * wait) seconds have elapsed. * This defaults to 0.1, and with default wait, 6 seconds. */ TIMEOUT: 1.1, SECONDARY_TIMEOUT: 0.1, /** Function: addNamespace * This function is used to extend the current namespaces in * Strophe.NS. It takes a key and a value with the key being the * name of the new namespace, with its actual value. * For example: * Strophe.addNamespace('PUBSUB', "http://jabber.org/protocol/pubsub"); * * Parameters: * (String) name - The name under which the namespace will be * referenced under Strophe.NS * (String) value - The actual namespace. */ addNamespace: function (name, value) { Strophe.NS[name] = value; }, /** Function: forEachChild * Map a function over some or all child elements of a given element. * * This is a small convenience function for mapping a function over * some or all of the children of an element. If elemName is null, all * children will be passed to the function, otherwise only children * whose tag names match elemName will be passed. * * Parameters: * (XMLElement) elem - The element to operate on. * (String) elemName - The child element tag name filter. * (Function) func - The function to apply to each child. This * function should take a single argument, a DOM element. */ forEachChild: function (elem, elemName, func) { var i, childNode; for (i = 0; i < elem.childNodes.length; i++) { childNode = elem.childNodes[i]; if (childNode.nodeType == Strophe.ElementType.NORMAL && (!elemName || this.isTagEqual(childNode, elemName))) { func(childNode); } } }, /** Function: isTagEqual * Compare an element's tag name with a string. * * This function is case insensitive. * * Parameters: * (XMLElement) el - A DOM element. * (String) name - The element name. * * Returns: * true if the element's tag name matches _el_, and false * otherwise. */ isTagEqual: function (el, name) { return el.tagName.toLowerCase() == name.toLowerCase(); }, /** PrivateVariable: _xmlGenerator * _Private_ variable that caches a DOM document to * generate elements. */ _xmlGenerator: null, /** PrivateFunction: _makeGenerator * _Private_ function that creates a dummy XML DOM document to serve as * an element and text node generator. */ _makeGenerator: function () { var doc; // IE9 does implement createDocument(); however, using it will cause the browser to leak memory on page unload. // Here, we test for presence of createDocument() plus IE's proprietary documentMode attribute, which would be // less than 10 in the case of IE9 and below. if (document.implementation.createDocument === undefined || document.implementation.createDocument && document.documentMode && document.documentMode < 10) { doc = this._getIEXmlDom(); doc.appendChild(doc.createElement('strophe')); } else { doc = document.implementation .createDocument('jabber:client', 'strophe', null); } return doc; }, /** Function: xmlGenerator * Get the DOM document to generate elements. * * Returns: * The currently used DOM document. */ xmlGenerator: function () { if (!Strophe._xmlGenerator) { Strophe._xmlGenerator = Strophe._makeGenerator(); } return Strophe._xmlGenerator; }, /** PrivateFunction: _getIEXmlDom * Gets IE xml doc object * * Returns: * A Microsoft XML DOM Object * See Also: * http://msdn.microsoft.com/en-us/library/ms757837%28VS.85%29.aspx */ _getIEXmlDom : function() { var doc = null; var docStrings = [ "Msxml2.DOMDocument.6.0", "Msxml2.DOMDocument.5.0", "Msxml2.DOMDocument.4.0", "MSXML2.DOMDocument.3.0", "MSXML2.DOMDocument", "MSXML.DOMDocument", "Microsoft.XMLDOM" ]; for (var d = 0; d < docStrings.length; d++) { if (doc === null) { try { doc = new ActiveXObject(docStrings[d]); } catch (e) { doc = null; } } else { break; } } return doc; }, /** Function: xmlElement * Create an XML DOM element. * * This function creates an XML DOM element correctly across all * implementations. Note that these are not HTML DOM elements, which * aren't appropriate for XMPP stanzas. * * Parameters: * (String) name - The name for the element. * (Array|Object) attrs - An optional array or object containing * key/value pairs to use as element attributes. The object should * be in the format {'key': 'value'} or {key: 'value'}. The array * should have the format [['key1', 'value1'], ['key2', 'value2']]. * (String) text - The text child data for the element. * * Returns: * A new XML DOM element. */ xmlElement: function (name) { if (!name) { return null; } var node = Strophe.xmlGenerator().createElement(name); // FIXME: this should throw errors if args are the wrong type or // there are more than two optional args var a, i, k; for (a = 1; a < arguments.length; a++) { if (!arguments[a]) { continue; } if (typeof(arguments[a]) == "string" || typeof(arguments[a]) == "number") { node.appendChild(Strophe.xmlTextNode(arguments[a])); } else if (typeof(arguments[a]) == "object" && typeof(arguments[a].sort) == "function") { for (i = 0; i < arguments[a].length; i++) { if (typeof(arguments[a][i]) == "object" && typeof(arguments[a][i].sort) == "function") { node.setAttribute(arguments[a][i][0], arguments[a][i][1]); } } } else if (typeof(arguments[a]) == "object") { for (k in arguments[a]) { if (arguments[a].hasOwnProperty(k)) { node.setAttribute(k, arguments[a][k]); } } } } return node; }, /* Function: xmlescape * Excapes invalid xml characters. * * Parameters: * (String) text - text to escape. * * Returns: * Escaped text. */ xmlescape: function(text) { text = text.replace(/\&/g, "&"); text = text.replace(/</g, "<"); text = text.replace(/>/g, ">"); text = text.replace(/'/g, "'"); text = text.replace(/"/g, """); return text; }, /** Function: xmlTextNode * Creates an XML DOM text node. * * Provides a cross implementation version of document.createTextNode. * * Parameters: * (String) text - The content of the text node. * * Returns: * A new XML DOM text node. */ xmlTextNode: function (text) { return Strophe.xmlGenerator().createTextNode(text); }, /** Function: xmlHtmlNode * Creates an XML DOM html node. * * Parameters: * (String) html - The content of the html node. * * Returns: * A new XML DOM text node. */ xmlHtmlNode: function (html) { var node; //ensure text is escaped if (window.DOMParser) { var parser = new DOMParser(); node = parser.parseFromString(html, "text/xml"); } else { node = new ActiveXObject("Microsoft.XMLDOM"); node.async="false"; node.loadXML(html); } return node; }, /** Function: getText * Get the concatenation of all text children of an element. * * Parameters: * (XMLElement) elem - A DOM element. * * Returns: * A String with the concatenated text of all text element children. */ getText: function (elem) { if (!elem) { return null; } var str = ""; if (elem.childNodes.length === 0 && elem.nodeType == Strophe.ElementType.TEXT) { str += elem.nodeValue; } for (var i = 0; i < elem.childNodes.length; i++) { if (elem.childNodes[i].nodeType == Strophe.ElementType.TEXT) { str += elem.childNodes[i].nodeValue; } } return Strophe.xmlescape(str); }, /** Function: copyElement * Copy an XML DOM element. * * This function copies a DOM element and all its descendants and returns * the new copy. * * Parameters: * (XMLElement) elem - A DOM element. * * Returns: * A new, copied DOM element tree. */ copyElement: function (elem) { var i, el; if (elem.nodeType == Strophe.ElementType.NORMAL) { el = Strophe.xmlElement(elem.tagName); for (i = 0; i < elem.attributes.length; i++) { el.setAttribute(elem.attributes[i].nodeName.toLowerCase(), elem.attributes[i].value); } for (i = 0; i < elem.childNodes.length; i++) { el.appendChild(Strophe.copyElement(elem.childNodes[i])); } } else if (elem.nodeType == Strophe.ElementType.TEXT) { el = Strophe.xmlGenerator().createTextNode(elem.nodeValue); } return el; }, /** Function: createHtml * Copy an HTML DOM element into an XML DOM. * * This function copies a DOM element and all its descendants and returns * the new copy. * * Parameters: * (HTMLElement) elem - A DOM element. * * Returns: * A new, copied DOM element tree. */ createHtml: function (elem) { var i, el, j, tag, attribute, value, css, cssAttrs, attr, cssName, cssValue; if (elem.nodeType == Strophe.ElementType.NORMAL) { tag = elem.nodeName.toLowerCase(); if(Strophe.XHTML.validTag(tag)) { try { el = Strophe.xmlElement(tag); for(i = 0; i < Strophe.XHTML.attributes[tag].length; i++) { attribute = Strophe.XHTML.attributes[tag][i]; value = elem.getAttribute(attribute); if(typeof value == 'undefined' || value === null || value === '' || value === false || value === 0) { continue; } if(attribute == 'style' && typeof value == 'object') { if(typeof value.cssText != 'undefined') { value = value.cssText; // we're dealing with IE, need to get CSS out } } // filter out invalid css styles if(attribute == 'style') { css = []; cssAttrs = value.split(';'); for(j = 0; j < cssAttrs.length; j++) { attr = cssAttrs[j].split(':'); cssName = attr[0].replace(/^\s*/, "").replace(/\s*$/, "").toLowerCase(); if(Strophe.XHTML.validCSS(cssName)) { cssValue = attr[1].replace(/^\s*/, "").replace(/\s*$/, ""); css.push(cssName + ': ' + cssValue); } } if(css.length > 0) { value = css.join('; '); el.setAttribute(attribute, value); } } else { el.setAttribute(attribute, value); } } for (i = 0; i < elem.childNodes.length; i++) { el.appendChild(Strophe.createHtml(elem.childNodes[i])); } } catch(e) { // invalid elements el = Strophe.xmlTextNode(''); } } else { el = Strophe.xmlGenerator().createDocumentFragment(); for (i = 0; i < elem.childNodes.length; i++) { el.appendChild(Strophe.createHtml(elem.childNodes[i])); } } } else if (elem.nodeType == Strophe.ElementType.FRAGMENT) { el = Strophe.xmlGenerator().createDocumentFragment(); for (i = 0; i < elem.childNodes.length; i++) { el.appendChild(Strophe.createHtml(elem.childNodes[i])); } } else if (elem.nodeType == Strophe.ElementType.TEXT) { el = Strophe.xmlTextNode(elem.nodeValue); } return el; }, /** Function: escapeNode * Escape the node part (also called local part) of a JID. * * Parameters: * (String) node - A node (or local part). * * Returns: * An escaped node (or local part). */ escapeNode: function (node) { return node.replace(/^\s+|\s+$/g, '') .replace(/\\/g, "\\5c") .replace(/ /g, "\\20") .replace(/\"/g, "\\22") .replace(/\&/g, "\\26") .replace(/\'/g, "\\27") .replace(/\//g, "\\2f") .replace(/:/g, "\\3a") .replace(/</g, "\\3c") .replace(/>/g, "\\3e") .replace(/@/g, "\\40"); }, /** Function: unescapeNode * Unescape a node part (also called local part) of a JID. * * Parameters: * (String) node - A node (or local part). * * Returns: * An unescaped node (or local part). */ unescapeNode: function (node) { return node.replace(/\\20/g, " ") .replace(/\\22/g, '"') .replace(/\\26/g, "&") .replace(/\\27/g, "'") .replace(/\\2f/g, "/") .replace(/\\3a/g, ":") .replace(/\\3c/g, "<") .replace(/\\3e/g, ">") .replace(/\\40/g, "@") .replace(/\\5c/g, "\\"); }, /** Function: getNodeFromJid * Get the node portion of a JID String. * * Parameters: * (String) jid - A JID. * * Returns: * A String containing the node. */ getNodeFromJid: function (jid) { if (jid.indexOf("@") < 0) { return null; } return jid.split("@")[0]; }, /** Function: getDomainFromJid * Get the domain portion of a JID String. * * Parameters: * (String) jid - A JID. * * Returns: * A String containing the domain. */ getDomainFromJid: function (jid) { var bare = Strophe.getBareJidFromJid(jid); if (bare.indexOf("@") < 0) { return bare; } else { var parts = bare.split("@"); parts.splice(0, 1); return parts.join('@'); } }, /** Function: getResourceFromJid * Get the resource portion of a JID String. * * Parameters: * (String) jid - A JID. * * Returns: * A String containing the resource. */ getResourceFromJid: function (jid) { var s = jid.split("/"); if (s.length < 2) { return null; } s.splice(0, 1); return s.join('/'); }, /** Function: getBareJidFromJid * Get the bare JID from a JID String. * * Parameters: * (String) jid - A JID. * * Returns: * A String containing the bare JID. */ getBareJidFromJid: function (jid) { return jid ? jid.split("/")[0] : null; }, /** Function: log * User overrideable logging function. * * This function is called whenever the Strophe library calls any * of the logging functions. The default implementation of this * function does nothing. If client code wishes to handle the logging * messages, it should override this with * > Strophe.log = function (level, msg) { * > (user code here) * > }; * * Please note that data sent and received over the wire is logged * via Strophe.Connection.rawInput() and Strophe.Connection.rawOutput(). * * The different levels and their meanings are * * DEBUG - Messages useful for debugging purposes. * INFO - Informational messages. This is mostly information like * 'disconnect was called' or 'SASL auth succeeded'. * WARN - Warnings about potential problems. This is mostly used * to report transient connection errors like request timeouts. * ERROR - Some error occurred. * FATAL - A non-recoverable fatal error occurred. * * Parameters: * (Integer) level - The log level of the log message. This will * be one of the values in Strophe.LogLevel. * (String) msg - The log message. */ /* jshint ignore:start */ log: function (level, msg) { return; }, /* jshint ignore:end */ /** Function: debug * Log a message at the Strophe.LogLevel.DEBUG level. * * Parameters: * (String) msg - The log message. */ debug: function(msg) { this.log(this.LogLevel.DEBUG, msg); }, /** Function: info * Log a message at the Strophe.LogLevel.INFO level. * * Parameters: * (String) msg - The log message. */ info: function (msg) { this.log(this.LogLevel.INFO, msg); }, /** Function: warn * Log a message at the Strophe.LogLevel.WARN level. * * Parameters: * (String) msg - The log message. */ warn: function (msg) { this.log(this.LogLevel.WARN, msg); }, /** Function: error * Log a message at the Strophe.LogLevel.ERROR level. * * Parameters: * (String) msg - The log message. */ error: function (msg) { this.log(this.LogLevel.ERROR, msg); }, /** Function: fatal * Log a message at the Strophe.LogLevel.FATAL level. * * Parameters: * (String) msg - The log message. */ fatal: function (msg) { this.log(this.LogLevel.FATAL, msg); }, /** Function: serialize * Render a DOM element and all descendants to a String. * * Parameters: * (XMLElement) elem - A DOM element. * * Returns: * The serialized element tree as a String. */ serialize: function (elem) { var result; if (!elem) { return null; } if (typeof(elem.tree) === "function") { elem = elem.tree(); } var nodeName = elem.nodeName; var i, child; if (elem.getAttribute("_realname")) { nodeName = elem.getAttribute("_realname"); } result = "<" + nodeName; for (i = 0; i < elem.attributes.length; i++) { if(elem.attributes[i].nodeName != "_realname") { result += " " + elem.attributes[i].nodeName.toLowerCase() + "='" + elem.attributes[i].value .replace(/&/g, "&") .replace(/\'/g, "'") .replace(/>/g, ">") .replace(/</g, "<") + "'"; } } if (elem.childNodes.length > 0) { result += ">"; for (i = 0; i < elem.childNodes.length; i++) { child = elem.childNodes[i]; switch( child.nodeType ){ case Strophe.ElementType.NORMAL: // normal element, so recurse result += Strophe.serialize(child); break; case Strophe.ElementType.TEXT: // text element to escape values result += Strophe.xmlescape(child.nodeValue); break; case Strophe.ElementType.CDATA: // cdata section so don't escape values result += "<![CDATA["+child.nodeValue+"]]>"; } } result += "</" + nodeName + ">"; } else { result += "/>"; } return result; }, /** PrivateVariable: _requestId * _Private_ variable that keeps track of the request ids for * connections. */ _requestId: 0, /** PrivateVariable: Strophe.connectionPlugins * _Private_ variable Used to store plugin names that need * initialization on Strophe.Connection construction. */ _connectionPlugins: {}, /** Function: addConnectionPlugin * Extends the Strophe.Connection object with the given plugin. * * Parameters: * (String) name - The name of the extension. * (Object) ptype - The plugin's prototype. */ addConnectionPlugin: function (name, ptype) { Strophe._connectionPlugins[name] = ptype; } }; /** Class: Strophe.Builder * XML DOM builder. * * This object provides an interface similar to JQuery but for building * DOM element easily and rapidly. All the functions except for toString() * and tree() return the object, so calls can be chained. Here's an * example using the $iq() builder helper. * > $iq({to: 'you', from: 'me', type: 'get', id: '1'}) * > .c('query', {xmlns: 'strophe:example'}) * > .c('example') * > .toString() * The above generates this XML fragment * > <iq to='you' from='me' type='get' id='1'> * > <query xmlns='strophe:example'> * > <example/> * > </query> * > </iq> * The corresponding DOM manipulations to get a similar fragment would be * a lot more tedious and probably involve several helper variables. * * Since adding children makes new operations operate on the child, up() * is provided to traverse up the tree. To add two children, do * > builder.c('child1', ...).up().c('child2', ...) * The next operation on the Builder will be relative to the second child. */ /** Constructor: Strophe.Builder * Create a Strophe.Builder object. * * The attributes should be passed in object notation. For example * > var b = new Builder('message', {to: 'you', from: 'me'}); * or * > var b = new Builder('messsage', {'xml:lang': 'en'}); * * Parameters: * (String) name - The name of the root element. * (Object) attrs - The attributes for the root element in object notation. * * Returns: * A new Strophe.Builder. */ Strophe.Builder = function (name, attrs) { // Set correct namespace for jabber:client elements if (name == "presence" || name == "message" || name == "iq") { if (attrs && !attrs.xmlns) { attrs.xmlns = Strophe.NS.CLIENT; } else if (!attrs) { attrs = {xmlns: Strophe.NS.CLIENT}; } } // Holds the tree being built. this.nodeTree = Strophe.xmlElement(name, attrs); // Points to the current operation node. this.node = this.nodeTree; }; Strophe.Builder.prototype = { /** Function: tree * Return the DOM tree. * * This function returns the current DOM tree as an element object. This * is suitable for passing to functions like Strophe.Connection.send(). * * Returns: * The DOM tree as a element object. */ tree: function () { return this.nodeTree; }, /** Function: toString * Serialize the DOM tree to a String. * * This function returns a string serialization of the current DOM * tree. It is often used internally to pass data to a * Strophe.Request object. * * Returns: * The serialized DOM tree in a String. */ toString: function () { return Strophe.serialize(this.nodeTree); }, /** Function: up * Make the current parent element the new current element. * * This function is often used after c() to traverse back up the tree. * For example, to add two children to the same element * > builder.c('child1', {}).up().c('child2', {}); * * Returns: * The Stophe.Builder object. */ up: function () { this.node = this.node.parentNode; return this; }, /** Function: attrs * Add or modify attributes of the current element. * * The attributes should be passed in object notation. This function * does not move the current element pointer. * * Parameters: * (Object) moreattrs - The attributes to add/modify in object notation. * * Returns: * The Strophe.Builder object. */ attrs: function (moreattrs) { for (var k in moreattrs) { if (moreattrs.hasOwnProperty(k)) { this.node.setAttribute(k, moreattrs[k]); } } return this; }, /** Function: c * Add a child to the current element and make it the new current * element. * * This function moves the current element pointer to the child, * unless text is provided. If you need to add another child, it * is necessary to use up() to go back to the parent in the tree. * * Parameters: * (String) name - The name of the child. * (Object) attrs - The attributes of the child in object notation. * (String) text - The text to add to the child. * * Returns: * The Strophe.Builder object. */ c: function (name, attrs, text) { var child = Strophe.xmlElement(name, attrs, text); this.node.appendChild(child); if (!text) { this.node = child; } return this; }, /** Function: cnode * Add a child to the current element and make it the new current * element. * * This function is the same as c() except that instead of using a * name and an attributes object to create the child it uses an * existing DOM element object. * * Parameters: * (XMLElement) elem - A DOM element. * * Returns: * The Strophe.Builder object. */ cnode: function (elem) { var impNode; var xmlGen = Strophe.xmlGenerator(); try { impNode = (xmlGen.importNode !== undefined); } catch (e) { impNode = false; } var newElem = impNode ? xmlGen.importNode(elem, true) : Strophe.copyElement(elem); this.node.appendChild(newElem); this.node = newElem; return this; }, /** Function: t * Add a child text element. * * This *does not* make the child the new current element since there * are no children of text elements. * * Parameters: * (String) text - The text data to append to the current element. * * Returns: * The Strophe.Builder object. */ t: function (text) { var child = Strophe.xmlTextNode(text); this.node.appendChild(child); return this; }, /** Function: h * Replace current element contents with the HTML passed in. * * This *does not* make the child the new current element * * Parameters: * (String) html - The html to insert as contents of current element. * * Returns: * The Strophe.Builder object. */ h: function (html) { var fragment = document.createElement('body'); // force the browser to try and fix any invalid HTML tags fragment.innerHTML = html; // copy cleaned html into an xml dom var xhtml = Strophe.createHtml(fragment); while(xhtml.childNodes.length > 0) { this.node.appendChild(xhtml.childNodes[0]); } return this; } }; /** PrivateClass: Strophe.Handler * _Private_ helper class for managing stanza handlers. * * A Strophe.Handler encapsulates a user provided callback function to be * executed when matching stanzas are received by the connection. * Handlers can be either one-off or persistant depending on their * return value. Returning true will cause a Handler to remain active, and * returning false will remove the Handler. * * Users will not use Strophe.Handler objects directly, but instead they * will use Strophe.Connection.addHandler() and * Strophe.Connection.deleteHandler(). */ /** PrivateConstructor: Strophe.Handler * Create and initialize a new Strophe.Handler. * * Parameters: * (Function) handler - A function to be executed when the handler is run. * (String) ns - The namespace to match. * (String) name - The element name to match. * (String) type - The element type to match. * (String) id - The element id attribute to match. * (String) from - The element from attribute to match. * (Object) options - Handler options * * Returns: * A new Strophe.Handler object. */ Strophe.Handler = function (handler, ns, name, type, id, from, options) { this.handler = handler; this.ns = ns; this.name = name; this.type = type; this.id = id; this.options = options || {matchBare: false}; // default matchBare to false if undefined if (!this.options.matchBare) { this.options.matchBare = false; } if (this.options.matchBare) { this.from = from ? Strophe.getBareJidFromJid(from) : null; } else { this.from = from; } // whether the handler is a user handler or a system handler this.user = true; }; Strophe.Handler.prototype = { /** PrivateFunction: isMatch * Tests if a stanza matches the Strophe.Handler. * * Parameters: * (XMLElement) elem - The XML element to test. * * Returns: * true if the stanza matches and false otherwise. */ isMatch: function (elem) { var nsMatch; var from = null; if (this.options.matchBare) { from = Strophe.getBareJidFromJid(elem.getAttribute('from')); } else { from = elem.getAttribute('from'); } nsMatch = false; if (!this.ns) { nsMatch = true; } else { var that = this; Strophe.forEachChild(elem, null, function (elem) { if (elem.getAttribute("xmlns") == that.ns) { nsMatch = true; } }); nsMatch = nsMatch || elem.getAttribute("xmlns") == this.ns; } if (nsMatch && (!this.name || Strophe.isTagEqual(elem, this.name)) && (!this.type || elem.getAttribute("type") == this.type) && (!this.id || elem.getAttribute("id") == this.id) && (!this.from || from == this.from)) { return true; } return false; }, /** PrivateFunction: run * Run the callback on a matching stanza. * * Parameters: * (XMLElement) elem - The DOM element that triggered the * Strophe.Handler. * * Returns: * A boolean indicating if the handler should remain active. */ run: function (elem) { var result = null; try { result = this.handler(elem); } catch (e) { if (e.sourceURL) { Strophe.fatal("error: " + this.handler + " " + e.sourceURL + ":" + e.line + " - " + e.name + ": " + e.message); } else if (e.fileName) { if (typeof(console) != "undefined") { console.trace(); console.error(this.handler, " - error - ", e, e.message); } Strophe.fatal("error: " + this.handler + " " + e.fileName + ":" + e.lineNumber + " - " + e.name + ": " + e.message); } else { Strophe.fatal("error: " + e.message + "\n" + e.stack); } throw e; } return result; }, /** PrivateFunction: toString * Get a String representation of the Strophe.Handler object. * * Returns: * A String. */ toString: function () { return "{Handler: " + this.handler + "(" + this.name + "," + this.id + "," + this.ns + ")}"; } }; /** PrivateClass: Strophe.TimedHandler * _Private_ helper class for managing timed handlers. * * A Strophe.TimedHandler encapsulates a user provided callback that * should be called after a certain period of time or at regular * intervals. The return value of the callback determines whether the * Strophe.TimedHandler will continue to fire. * * Users will not use Strophe.TimedHandler objects directly, but instead * they will use Strophe.Connection.addTimedHandler() and * Strophe.Connection.deleteTimedHandler(). */ /** PrivateConstructor: Strophe.TimedHandler * Create and initialize a new Strophe.TimedHandler object. * * Parameters: * (Integer) period - The number of milliseconds to wait before the * handler is called. * (Function) handler - The callback to run when the handler fires. This * function should take no arguments. * * Returns: * A new Strophe.TimedHandler object. */ Strophe.TimedHandler = function (period, handler) { this.period = period; this.handler = handler; this.lastCalled = new Date().getTime(); this.user = true; }; Strophe.TimedHandler.prototype = { /** PrivateFunction: run * Run the callback for the Strophe.TimedHandler. * * Returns: * true if the Strophe.TimedHandler should be called again, and false * otherwise. */ run: function () { this.lastCalled = new Date().getTime(); return this.handler(); }, /** PrivateFunction: reset * Reset the last called time for the Strophe.TimedHandler. */ reset: function () { this.lastCalled = new Date().getTime(); }, /** PrivateFunction: toString * Get a string representation of the Strophe.TimedHandler object. * * Returns: * The string representation. */ toString: function () { return "{TimedHandler: " + this.handler + "(" + this.period +")}"; } }; /** Class: Strophe.Connection * XMPP Connection manager. * * This class is the main part of Strophe. It manages a BOSH connection * to an XMPP server and dispatches events to the user callbacks as * data arrives. It supports SASL PLAIN, SASL DIGEST-MD5, SASL SCRAM-SHA1 * and legacy authentication. * * After creating a Strophe.Connection object, the user will typically * call connect() with a user supplied callback to handle connection level * events like authentication failure, disconnection, or connection * complete. * * The user will also have several event handlers defined by using * addHandler() and addTimedHandler(). These will allow the user code to * respond to interesting stanzas or do something periodically with the * connection. These handlers will be active once authentication is * finished. * * To send data to the connection, use send(). */ /** Constructor: Strophe.Connection * Create and initialize a Strophe.Connection object. * * The transport-protocol for this connection will be chosen automatically * based on the given service parameter. URLs starting with "ws://" or * "wss://" will use WebSockets, URLs starting with "http://", "https://" * or without a protocol will use BOSH. * * To make Strophe connect to the current host you can leave out the protocol * and host part and just pass the path, e.g. * * > var conn = new Strophe.Connection("/http-bind/"); * * WebSocket options: * * If you want to connect to the current host with a WebSocket connection you * can tell Strophe to use WebSockets through a "protocol" attribute in the * optional options parameter. Valid values are "ws" for WebSocket and "wss" * for Secure WebSocket. * So to connect to "wss://CURRENT_HOSTNAME/xmpp-websocket" you would call * * > var conn = new Strophe.Connection("/xmpp-websocket/", {protocol: "wss"}); * * Note that relative URLs _NOT_ starting with a "/" will also include the path * of the current site. * * Also because downgrading security is not permitted by browsers, when using * relative URLs both BOSH and WebSocket connections will use their secure * variants if the current connection to the site is also secure (https). * * BOSH options: * * by adding "sync" to the options, you can control if requests will * be made synchronously or not. The default behaviour is asynchronous. * If you want to make requests synchronous, make "sync" evaluate to true: * > var conn = new Strophe.Connection("/http-bind/", {sync: true}); * You can also toggle this on an already established connection: * > conn.options.sync = true; * * * Parameters: * (String) service - The BOSH or WebSocket service URL. * (Object) options - A hash of configuration options * * Returns: * A new Strophe.Connection object. */ Strophe.Connection = function (service, options) { // The service URL this.service = service; // Configuration options this.options = options || {}; var proto = this.options.protocol || ""; // Select protocal based on service or options if (service.indexOf("ws:") === 0 || service.indexOf("wss:") === 0 || proto.indexOf("ws") === 0) { this._proto = new Strophe.Websocket(this); } else { this._proto = new Strophe.Bosh(this); } /* The connected JID. */ this.jid = ""; /* the JIDs domain */ this.domain = null; /* stream:features */ this.features = null; // SASL this._sasl_data = {}; this.do_session = false; this.do_bind = false; // handler lists this.timedHandlers = []; this.handlers = []; this.removeTimeds = []; this.removeHandlers = []; this.addTimeds = []; this.addHandlers = []; this._authentication = {}; this._idleTimeout = null; this._disconnectTimeout = null; this.do_authentication = true; this.authenticated = false; this.disconnecting = false; this.connected = false; this.errors = 0; this.paused = false; this._data = []; this._uniqueId = 0; this._sasl_success_handler = null; this._sasl_failure_handler = null; this._sasl_challenge_handler = null; // Max retries before disconnecting this.maxRetries = 5; // setup onIdle callback every 1/10th of a second this._idleTimeout = setTimeout(this._onIdle.bind(this), 100); // initialize plugins for (var k in Strophe._connectionPlugins) { if (Strophe._connectionPlugins.hasOwnProperty(k)) { var ptype = Strophe._connectionPlugins[k]; // jslint complaints about the below line, but this is fine var F = function () {}; // jshint ignore:line F.prototype = ptype; this[k] = new F(); this[k].init(this); } } }; Strophe.Connection.prototype = { /** Function: reset * Reset the connection. * * This function should be called after a connection is disconnected * before that connection is reused. */ reset: function () { this._proto._reset(); // SASL this.do_session = false; this.do_bind = false; // handler lists this.timedHandlers = []; this.handlers = []; this.removeTimeds = []; this.removeHandlers = []; this.addTimeds = []; this.addHandlers = []; this._authentication = {}; this.authenticated = false; this.disconnecting = false; this.connected = false; this.errors = 0; this._requests = []; this._uniqueId = 0; }, /** Function: pause * Pause the request manager. * * This will prevent Strophe from sending any more requests to the * server. This is very useful for temporarily pausing * BOSH-Connections while a lot of send() calls are happening quickly. * This causes Strophe to send the data in a single request, saving * many request trips. */ pause: function () { this.paused = true; }, /** Function: resume * Resume the request manager. * * This resumes after pause() has been called. */ resume: function () { this.paused = false; }, /** Function: getUniqueId * Generate a unique ID for use in <iq/> elements. * * All <iq/> stanzas are required to have unique id attributes. This * function makes creating these easy. Each connection instance has * a counter which starts from zero, and the value of this counter * plus a colon followed by the suffix becomes the unique id. If no * suffix is supplied, the counter is used as the unique id. * * Suffixes are used to make debugging easier when reading the stream * data, and their use is recommended. The counter resets to 0 for * every new connection for the same reason. For connections to the * same server that authenticate the same way, all the ids should be * the same, which makes it easy to see changes. This is useful for * automated testing as well. * * Parameters: * (String) suffix - A optional suffix to append to the id. * * Returns: * A unique string to be used for the id attribute. */ getUniqueId: function (suffix) { if (typeof(suffix) == "string" || typeof(suffix) == "number") { return ++this._uniqueId + ":" + suffix; } else { return ++this._uniqueId + ""; } }, /** Function: connect * Starts the connection process. * * As the connection process proceeds, the user supplied callback will * be triggered multiple times with status updates. The callback * should take two arguments - the status code and the error condition. * * The status code will be one of the values in the Strophe.Status * constants. The error condition will be one of the conditions * defined in RFC 3920 or the condition 'strophe-parsererror'. * * The Parameters _wait_, _hold_ and _route_ are optional and only relevant * for BOSH connections. Please see XEP 124 for a more detailed explanation * of the optional parameters. * * Parameters: * (String) jid - The user's JID. This may be a bare JID, * or a full JID. If a node is not supplied, SASL ANONYMOUS * authentication will be attempted. * (String) pass - The user's password. * (Function) callback - The connect callback function. * (Integer) wait - The optional HTTPBIND wait value. This is the * time the server will wait before returning an empty result for * a request. The default setting of 60 seconds is recommended. * (Integer) hold - The optional HTTPBIND hold value. This is the * number of connections the server will hold at one time. This * should almost always be set to 1 (the default). * (String) route - The optional route value. */ connect: function (jid, pass, callback, wait, hold, route) { this.jid = jid; /** Variable: authzid * Authorization identity. */ this.authzid = Strophe.getBareJidFromJid(this.jid); /** Variable: authcid * Authentication identity (User name). */ this.authcid = Strophe.getNodeFromJid(this.jid); /** Variable: pass * Authentication identity (User password). */ this.pass = pass; /** Variable: servtype * Digest MD5 compatibility. */ this.servtype = "xmpp"; this.connect_callback = callback; this.disconnecting = false; this.connected = false; this.authenticated = false; this.errors = 0; // parse jid for domain this.domain = Strophe.getDomainFromJid(this.jid); this._changeConnectStatus(Strophe.Status.CONNECTING, null); this._proto._connect(wait, hold, route); }, /** Function: attach * Attach to an already created and authenticated BOSH session. * * This function is provided to allow Strophe to attach to BOSH * sessions which have been created externally, perhaps by a Web * application. This is often used to support auto-login type features * without putting user credentials into the page. * * Parameters: * (String) jid - The full JID that is bound by the session. * (String) sid - The SID of the BOSH session. * (String) rid - The current RID of the BOSH session. This RID * will be used by the next request. * (Function) callback The connect callback function. * (Integer) wait - The optional HTTPBIND wait value. This is the * time the server will wait before returning an empty result for * a request. The default setting of 60 seconds is recommended. * Other settings will require tweaks to the Strophe.TIMEOUT value. * (Integer) hold - The optional HTTPBIND hold value. This is the * number of connections the server will hold at one time. This * should almost always be set to 1 (the default). * (Integer) wind - The optional HTTBIND window value. This is the * allowed range of request ids that are valid. The default is 5. */ attach: function (jid, sid, rid, callback, wait, hold, wind) { this._proto._attach(jid, sid, rid, callback, wait, hold, wind); }, /** Function: xmlInput * User overrideable function that receives XML data coming into the * connection. * * The default function does nothing. User code can override this with * > Strophe.Connection.xmlInput = function (elem) { * > (user code) * > }; * * Due to limitations of current Browsers' XML-Parsers the opening and closing * <stream> tag for WebSocket-Connoctions will be passed as selfclosing here. * * BOSH-Connections will have all stanzas wrapped in a <body> tag. See * <Strophe.Bosh.strip> if you want to strip this tag. * * Parameters: * (XMLElement) elem - The XML data received by the connection. */ /* jshint unused:false */ xmlInput: function (elem) { return; }, /* jshint unused:true */ /** Function: xmlOutput * User overrideable function that receives XML data sent to the * connection. * * The default function does nothing. User code can override this with * > Strophe.Connection.xmlOutput = function (elem) { * > (user code) * > }; * * Due to limitations of current Browsers' XML-Parsers the opening and closing * <stream> tag for WebSocket-Connoctions will be passed as selfclosing here. * * BOSH-Connections will have all stanzas wrapped in a <body> tag. See * <Strophe.Bosh.strip> if you want to strip this tag. * * Parameters: * (XMLElement) elem - The XMLdata sent by the connection. */ /* jshint unused:false */ xmlOutput: function (elem) { return; }, /* jshint unused:true */ /** Function: rawInput * User overrideable function that receives raw data coming into the * connection. * * The default function does nothing. User code can override this with * > Strophe.Connection.rawInput = function (data) { * > (user code) * > }; * * Parameters: * (String) data - The data received by the connection. */ /* jshint unused:false */ rawInput: function (data) { return; }, /* jshint unused:true */ /** Function: rawOutput * User overrideable function that receives raw data sent to the * connection. * * The default function does nothing. User code can override this with * > Strophe.Connection.rawOutput = function (data) { * > (user code) * > }; * * Parameters: * (String) data - The data sent by the connection. */ /* jshint unused:false */ rawOutput: function (data) { return; }, /* jshint unused:true */ /** Function: send * Send a stanza. * * This function is called to push data onto the send queue to * go out over the wire. Whenever a request is sent to the BOSH * server, all pending data is sent and the queue is flushed. * * Parameters: * (XMLElement | * [XMLElement] | * Strophe.Builder) elem - The stanza to send. */ send: function (elem) { if (elem === null) { return ; } if (typeof(elem.sort) === "function") { for (var i = 0; i < elem.length; i++) { this._queueData(elem[i]); } } else if (typeof(elem.tree) === "function") { this._queueData(elem.tree()); } else { this._queueData(elem); } this._proto._send(); }, /** Function: flush * Immediately send any pending outgoing data. * * Normally send() queues outgoing data until the next idle period * (100ms), which optimizes network use in the common cases when * several send()s are called in succession. flush() can be used to * immediately send all pending data. */ flush: function () { // cancel the pending idle period and run the idle function // immediately clearTimeout(this._idleTimeout); this._onIdle(); }, /** Function: sendIQ * Helper function to send IQ stanzas. * * Parameters: * (XMLElement) elem - The stanza to send. * (Function) callback - The callback function for a successful request. * (Function) errback - The callback function for a failed or timed * out request. On timeout, the stanza will be null. * (Integer) timeout - The time specified in milliseconds for a * timeout to occur. * * Returns: * The id used to send the IQ. */ sendIQ: function(elem, callback, errback, timeout) { var timeoutHandler = null; var that = this; if (typeof(elem.tree) === "function") { elem = elem.tree(); } var id = elem.getAttribute('id'); // inject id if not found if (!id) { id = this.getUniqueId("sendIQ"); elem.setAttribute("id", id); } var handler = this.addHandler(function (stanza) { // remove timeout handler if there is one if (timeoutHandler) { that.deleteTimedHandler(timeoutHandler); } var iqtype = stanza.getAttribute('type'); if (iqtype == 'result') { if (callback) { callback(stanza); } } else if (iqtype == 'error') { if (errback) { errback(stanza); } } else { throw { name: "StropheError", message: "Got bad IQ type of " + iqtype }; } }, null, 'iq', null, id); // if timeout specified, setup timeout handler. if (timeout) { timeoutHandler = this.addTimedHandler(timeout, function () { // get rid of normal handler that.deleteHandler(handler); // call errback on timeout with null stanza if (errback) { errback(null); } return false; }); } this.send(elem); return id; }, /** PrivateFunction: _queueData * Queue outgoing data for later sending. Also ensures that the data * is a DOMElement. */ _queueData: function (element) { if (element === null || !element.tagName || !element.childNodes) { throw { name: "StropheError", message: "Cannot queue non-DOMElement." }; } this._data.push(element); }, /** PrivateFunction: _sendRestart * Send an xmpp:restart stanza. */ _sendRestart: function () { this._data.push("restart"); this._proto._sendRestart(); this._idleTimeout = setTimeout(this._onIdle.bind(this), 100); }, /** Function: addTimedHandler * Add a timed handler to the connection. * * This function adds a timed handler. The provided handler will * be called every period milliseconds until it returns false, * the connection is terminated, or the handler is removed. Handlers * that wish to continue being invoked should return true. * * Because of method binding it is necessary to save the result of * this function if you wish to remove a handler with * deleteTimedHandler(). * * Note that user handlers are not active until authentication is * successful. * * Parameters: * (Integer) period - The period of the handler. * (Function) handler - The callback function. * * Returns: * A reference to the handler that can be used to remove it. */ addTimedHandler: function (period, handler) { var thand = new Strophe.TimedHandler(period, handler); this.addTimeds.push(thand); return thand; }, /** Function: deleteTimedHandler * Delete a timed handler for a connection. * * This function removes a timed handler from the connection. The * handRef parameter is *not* the function passed to addTimedHandler(), * but is the reference returned from addTimedHandler(). * * Parameters: * (Strophe.TimedHandler) handRef - The handler reference. */ deleteTimedHandler: function (handRef) { // this must be done in the Idle loop so that we don't change // the handlers during iteration this.removeTimeds.push(handRef); }, /** Function: addHandler * Add a stanza handler for the connection. * * This function adds a stanza handler to the connection. The * handler callback will be called for any stanza that matches * the parameters. Note that if multiple parameters are supplied, * they must all match for the handler to be invoked. * * The handler will receive the stanza that triggered it as its argument. * The handler should return true if it is to be invoked again; * returning false will remove the handler after it returns. * * As a convenience, the ns parameters applies to the top level element * and also any of its immediate children. This is primarily to make * matching /iq/query elements easy. * * The options argument contains handler matching flags that affect how * matches are determined. Currently the only flag is matchBare (a * boolean). When matchBare is true, the from parameter and the from * attribute on the stanza will be matched as bare JIDs instead of * full JIDs. To use this, pass {matchBare: true} as the value of * options. The default value for matchBare is false. * * The return value should be saved if you wish to remove the handler * with deleteHandler(). * * Parameters: * (Function) handler - The user callback. * (String) ns - The namespace to match. * (String) name - The stanza name to match. * (String) type - The stanza type attribute to match. * (String) id - The stanza id attribute to match. * (String) from - The stanza from attribute to match. * (String) options - The handler options * * Returns: * A reference to the handler that can be used to remove it. */ addHandler: function (handler, ns, name, type, id, from, options) { var hand = new Strophe.Handler(handler, ns, name, type, id, from, options); this.addHandlers.push(hand); return hand; }, /** Function: deleteHandler * Delete a stanza handler for a connection. * * This function removes a stanza handler from the connection. The * handRef parameter is *not* the function passed to addHandler(), * but is the reference returned from addHandler(). * * Parameters: * (Strophe.Handler) handRef - The handler reference. */ deleteHandler: function (handRef) { // this must be done in the Idle loop so that we don't change // the handlers during iteration this.removeHandlers.push(handRef); }, /** Function: disconnect * Start the graceful disconnection process. * * This function starts the disconnection process. This process starts * by sending unavailable presence and sending BOSH body of type * terminate. A timeout handler makes sure that disconnection happens * even if the BOSH server does not respond. * * The user supplied connection callback will be notified of the * progress as this process happens. * * Parameters: * (String) reason - The reason the disconnect is occuring. */ disconnect: function (reason) { this._changeConnectStatus(Strophe.Status.DISCONNECTING, reason); Strophe.info("Disconnect was called because: " + reason); if (this.connected) { var pres = false; this.disconnecting = true; if (this.authenticated) { pres = $pres({ xmlns: Strophe.NS.CLIENT, type: 'unavailable' }); } // setup timeout handler this._disconnectTimeout = this._addSysTimedHandler( 3000, this._onDisconnectTimeout.bind(this)); this._proto._disconnect(pres); } }, /** PrivateFunction: _changeConnectStatus * _Private_ helper function that makes sure plugins and the user's * callback are notified of connection status changes. * * Parameters: * (Integer) status - the new connection status, one of the values * in Strophe.Status * (String) condition - the error condition or null */ _changeConnectStatus: function (status, condition) { // notify all plugins listening for status changes for (var k in Strophe._connectionPlugins) { if (Strophe._connectionPlugins.hasOwnProperty(k)) { var plugin = this[k]; if (plugin.statusChanged) { try { plugin.statusChanged(status, condition); } catch (err) { Strophe.error("" + k + " plugin caused an exception " + "changing status: " + err); } } } } // notify the user's callback if (this.connect_callback) { try { this.connect_callback(status, condition); } catch (e) { Strophe.error("User connection callback caused an " + "exception: " + e); } } }, /** PrivateFunction: _doDisconnect * _Private_ function to disconnect. * * This is the last piece of the disconnection logic. This resets the * connection and alerts the user's connection callback. */ _doDisconnect: function () { // Cancel Disconnect Timeout if (this._disconnectTimeout !== null) { this.deleteTimedHandler(this._disconnectTimeout); this._disconnectTimeout = null; } Strophe.info("_doDisconnect was called"); this._proto._doDisconnect(); this.authenticated = false; this.disconnecting = false; // delete handlers this.handlers = []; this.timedHandlers = []; this.removeTimeds = []; this.removeHandlers = []; this.addTimeds = []; this.addHandlers = []; // tell the parent we disconnected this._changeConnectStatus(Strophe.Status.DISCONNECTED, null); this.connected = false; }, /** PrivateFunction: _dataRecv * _Private_ handler to processes incoming data from the the connection. * * Except for _connect_cb handling the initial connection request, * this function handles the incoming data for all requests. This * function also fires stanza handlers that match each incoming * stanza. * * Parameters: * (Strophe.Request) req - The request that has data ready. * (string) req - The stanza a raw string (optiona). */ _dataRecv: function (req, raw) { Strophe.info("_dataRecv called"); var elem = this._proto._reqToData(req); if (elem === null) { return; } if (this.xmlInput !== Strophe.Connection.prototype.xmlInput) { if (elem.nodeName === this._proto.strip && elem.childNodes.length) { this.xmlInput(elem.childNodes[0]); } else { this.xmlInput(elem); } } if (this.rawInput !== Strophe.Connection.prototype.rawInput) { if (raw) { this.rawInput(raw); } else { this.rawInput(Strophe.serialize(elem)); } } // remove handlers scheduled for deletion var i, hand; while (this.removeHandlers.length > 0) { hand = this.removeHandlers.pop(); i = this.handlers.indexOf(hand); if (i >= 0) { this.handlers.splice(i, 1); } } // add handlers scheduled for addition while (this.addHandlers.length > 0) { this.handlers.push(this.addHandlers.pop()); } // handle graceful disconnect if (this.disconnecting && this._proto._emptyQueue()) { this._doDisconnect(); return; } var typ = elem.getAttribute("type"); var cond, conflict; if (typ !== null && typ == "terminate") { // Don't process stanzas that come in after disconnect if (this.disconnecting) { return; } // an error occurred cond = elem.getAttribute("condition"); conflict = elem.getElementsByTagName("conflict"); if (cond !== null) { if (cond == "remote-stream-error" && conflict.length > 0) { cond = "conflict"; } this._changeConnectStatus(Strophe.Status.CONNFAIL, cond); } else { this._changeConnectStatus(Strophe.Status.CONNFAIL, "unknown"); } this.disconnect('unknown stream-error'); return; } // send each incoming stanza through the handler chain var that = this; Strophe.forEachChild(elem, null, function (child) { var i, newList; // process handlers newList = that.handlers; that.handlers = []; for (i = 0; i < newList.length; i++) { var hand = newList[i]; // encapsulate 'handler.run' not to lose the whole handler list if // one of the handlers throws an exception try { if (hand.isMatch(child) && (that.authenticated || !hand.user)) { if (hand.run(child)) { that.handlers.push(hand); } } else { that.handlers.push(hand); } } catch(e) { // if the handler throws an exception, we consider it as false Strophe.warn('Removing Strophe handlers due to uncaught exception: ' + e.message); } } }); }, /** Attribute: mechanisms * SASL Mechanisms available for Conncection. */ mechanisms: {}, /** PrivateFunction: _connect_cb * _Private_ handler for initial connection request. * * This handler is used to process the initial connection request * response from the BOSH server. It is used to set up authentication * handlers and start the authentication process. * * SASL authentication will be attempted if available, otherwise * the code will fall back to legacy authentication. * * Parameters: * (Strophe.Request) req - The current request. * (Function) _callback - low level (xmpp) connect callback function. * Useful for plugins with their own xmpp connect callback (when their) * want to do something special). */ _connect_cb: function (req, _callback, raw) { Strophe.info("_connect_cb was called"); this.connected = true; var bodyWrap = this._proto._reqToData(req); if (!bodyWrap) { return; } if (this.xmlInput !== Strophe.Connection.prototype.xmlInput) { if (bodyWrap.nodeName === this._proto.strip && bodyWrap.childNodes.length) { this.xmlInput(bodyWrap.childNodes[0]); } else { this.xmlInput(bodyWrap); } } if (this.rawInput !== Strophe.Connection.prototype.rawInput) { if (raw) { this.rawInput(raw); } else { this.rawInput(Strophe.serialize(bodyWrap)); } } var conncheck = this._proto._connect_cb(bodyWrap); if (conncheck === Strophe.Status.CONNFAIL) { return; } this._authentication.sasl_scram_sha1 = false; this._authentication.sasl_plain = false; this._authentication.sasl_digest_md5 = false; this._authentication.sasl_anonymous = false; this._authentication.legacy_auth = false; // Check for the stream:features tag var hasFeatures = bodyWrap.getElementsByTagName("stream:features").length > 0; if (!hasFeatures) { hasFeatures = bodyWrap.getElementsByTagName("features").length > 0; } var mechanisms = bodyWrap.getElementsByTagName("mechanism"); var matched = []; var i, mech, found_authentication = false; if (!hasFeatures) { this._proto._no_auth_received(_callback); return; } if (mechanisms.length > 0) { for (i = 0; i < mechanisms.length; i++) { mech = Strophe.getText(mechanisms[i]); if (this.mechanisms[mech]) matched.push(this.mechanisms[mech]); } } this._authentication.legacy_auth = bodyWrap.getElementsByTagName("auth").length > 0; found_authentication = this._authentication.legacy_auth || matched.length > 0; if (!found_authentication) { this._proto._no_auth_received(_callback); return; } if (this.do_authentication !== false) this.authenticate(matched); }, /** Function: authenticate * Set up authentication * * Contiunues the initial connection request by setting up authentication * handlers and start the authentication process. * * SASL authentication will be attempted if available, otherwise * the code will fall back to legacy authentication. * */ authenticate: function (matched) { var i; // Sorting matched mechanisms according to priority. for (i = 0; i < matched.length - 1; ++i) { var higher = i; for (var j = i + 1; j < matched.length; ++j) { if (matched[j].prototype.priority > matched[higher].prototype.priority) { higher = j; } } if (higher != i) { var swap = matched[i]; matched[i] = matched[higher]; matched[higher] = swap; } } // run each mechanism var mechanism_found = false; for (i = 0; i < matched.length; ++i) { if (!matched[i].test(this)) continue; this._sasl_success_handler = this._addSysHandler( this._sasl_success_cb.bind(this), null, "success", null, null); this._sasl_failure_handler = this._addSysHandler( this._sasl_failure_cb.bind(this), null, "failure", null, null); this._sasl_challenge_handler = this._addSysHandler( this._sasl_challenge_cb.bind(this), null, "challenge", null, null); this._sasl_mechanism = new matched[i](); this._sasl_mechanism.onStart(this); var request_auth_exchange = $build("auth", { xmlns: Strophe.NS.SASL, mechanism: this._sasl_mechanism.name }); if (this._sasl_mechanism.isClientFirst) { var response = this._sasl_mechanism.onChallenge(this, null); request_auth_exchange.t(Base64.encode(response)); } this.send(request_auth_exchange.tree()); mechanism_found = true; break; } if (!mechanism_found) { // if none of the mechanism worked if (Strophe.getNodeFromJid(this.jid) === null) { // we don't have a node, which is required for non-anonymous // client connections this._changeConnectStatus(Strophe.Status.CONNFAIL, 'x-strophe-bad-non-anon-jid'); this.disconnect('x-strophe-bad-non-anon-jid'); } else { // fall back to legacy authentication this._changeConnectStatus(Strophe.Status.AUTHENTICATING, null); this._addSysHandler(this._auth1_cb.bind(this), null, null, null, "_auth_1"); this.send($iq({ type: "get", to: this.domain, id: "_auth_1" }).c("query", { xmlns: Strophe.NS.AUTH }).c("username", {}).t(Strophe.getNodeFromJid(this.jid)).tree()); } } }, _sasl_challenge_cb: function(elem) { var challenge = Base64.decode(Strophe.getText(elem)); var response = this._sasl_mechanism.onChallenge(this, challenge); var stanza = $build('response', { xmlns: Strophe.NS.SASL }); if (response !== "") { stanza.t(Base64.encode(response)); } this.send(stanza.tree()); return true; }, /** PrivateFunction: _auth1_cb * _Private_ handler for legacy authentication. * * This handler is called in response to the initial <iq type='get'/> * for legacy authentication. It builds an authentication <iq/> and * sends it, creating a handler (calling back to _auth2_cb()) to * handle the result * * Parameters: * (XMLElement) elem - The stanza that triggered the callback. * * Returns: * false to remove the handler. */ /* jshint unused:false */ _auth1_cb: function (elem) { // build plaintext auth iq var iq = $iq({type: "set", id: "_auth_2"}) .c('query', {xmlns: Strophe.NS.AUTH}) .c('username', {}).t(Strophe.getNodeFromJid(this.jid)) .up() .c('password').t(this.pass); if (!Strophe.getResourceFromJid(this.jid)) { // since the user has not supplied a resource, we pick // a default one here. unlike other auth methods, the server // cannot do this for us. this.jid = Strophe.getBareJidFromJid(this.jid) + '/strophe'; } iq.up().c('resource', {}).t(Strophe.getResourceFromJid(this.jid)); this._addSysHandler(this._auth2_cb.bind(this), null, null, null, "_auth_2"); this.send(iq.tree()); return false; }, /* jshint unused:true */ /** PrivateFunction: _sasl_success_cb * _Private_ handler for succesful SASL authentication. * * Parameters: * (XMLElement) elem - The matching stanza. * * Returns: * false to remove the handler. */ _sasl_success_cb: function (elem) { if (this._sasl_data["server-signature"]) { var serverSignature; var success = Base64.decode(Strophe.getText(elem)); var attribMatch = /([a-z]+)=([^,]+)(,|$)/; var matches = success.match(attribMatch); if (matches[1] == "v") { serverSignature = matches[2]; } if (serverSignature != this._sasl_data["server-signature"]) { // remove old handlers this.deleteHandler(this._sasl_failure_handler); this._sasl_failure_handler = null; if (this._sasl_challenge_handler) { this.deleteHandler(this._sasl_challenge_handler); this._sasl_challenge_handler = null; } this._sasl_data = {}; return this._sasl_failure_cb(null); } } Strophe.info("SASL authentication succeeded."); if(this._sasl_mechanism) this._sasl_mechanism.onSuccess(); // remove old handlers this.deleteHandler(this._sasl_failure_handler); this._sasl_failure_handler = null; if (this._sasl_challenge_handler) { this.deleteHandler(this._sasl_challenge_handler); this._sasl_challenge_handler = null; } this._addSysHandler(this._sasl_auth1_cb.bind(this), null, "stream:features", null, null); // we must send an xmpp:restart now this._sendRestart(); return false; }, /** PrivateFunction: _sasl_auth1_cb * _Private_ handler to start stream binding. * * Parameters: * (XMLElement) elem - The matching stanza. * * Returns: * false to remove the handler. */ _sasl_auth1_cb: function (elem) { // save stream:features for future usage this.features = elem; var i, child; for (i = 0; i < elem.childNodes.length; i++) { child = elem.childNodes[i]; if (child.nodeName == 'bind') { this.do_bind = true; } if (child.nodeName == 'session') { this.do_session = true; } } if (!this.do_bind) { this._changeConnectStatus(Strophe.Status.AUTHFAIL, null); return false; } else { this._addSysHandler(this._sasl_bind_cb.bind(this), null, null, null, "_bind_auth_2"); var resource = Strophe.getResourceFromJid(this.jid); if (resource) { this.send($iq({type: "set", id: "_bind_auth_2"}) .c('bind', {xmlns: Strophe.NS.BIND}) .c('resource', {}).t(resource).tree()); } else { this.send($iq({type: "set", id: "_bind_auth_2"}) .c('bind', {xmlns: Strophe.NS.BIND}) .tree()); } } return false; }, /** PrivateFunction: _sasl_bind_cb * _Private_ handler for binding result and session start. * * Parameters: * (XMLElement) elem - The matching stanza. * * Returns: * false to remove the handler. */ _sasl_bind_cb: function (elem) { if (elem.getAttribute("type") == "error") { Strophe.info("SASL binding failed."); var conflict = elem.getElementsByTagName("conflict"), condition; if (conflict.length > 0) { condition = 'conflict'; } this._changeConnectStatus(Strophe.Status.AUTHFAIL, condition); return false; } // TODO - need to grab errors var bind = elem.getElementsByTagName("bind"); var jidNode; if (bind.length > 0) { // Grab jid jidNode = bind[0].getElementsByTagName("jid"); if (jidNode.length > 0) { this.jid = Strophe.getText(jidNode[0]); if (this.do_session) { this._addSysHandler(this._sasl_session_cb.bind(this), null, null, null, "_session_auth_2"); this.send($iq({type: "set", id: "_session_auth_2"}) .c('session', {xmlns: Strophe.NS.SESSION}) .tree()); } else { this.authenticated = true; this._changeConnectStatus(Strophe.Status.CONNECTED, null); } } } else { Strophe.info("SASL binding failed."); this._changeConnectStatus(Strophe.Status.AUTHFAIL, null); return false; } }, /** PrivateFunction: _sasl_session_cb * _Private_ handler to finish successful SASL connection. * * This sets Connection.authenticated to true on success, which * starts the processing of user handlers. * * Parameters: * (XMLElement) elem - The matching stanza. * * Returns: * false to remove the handler. */ _sasl_session_cb: function (elem) { if (elem.getAttribute("type") == "result") { this.authenticated = true; this._changeConnectStatus(Strophe.Status.CONNECTED, null); } else if (elem.getAttribute("type") == "error") { Strophe.info("Session creation failed."); this._changeConnectStatus(Strophe.Status.AUTHFAIL, null); return false; } return false; }, /** PrivateFunction: _sasl_failure_cb * _Private_ handler for SASL authentication failure. * * Parameters: * (XMLElement) elem - The matching stanza. * * Returns: * false to remove the handler. */ /* jshint unused:false */ _sasl_failure_cb: function (elem) { // delete unneeded handlers if (this._sasl_success_handler) { this.deleteHandler(this._sasl_success_handler); this._sasl_success_handler = null; } if (this._sasl_challenge_handler) { this.deleteHandler(this._sasl_challenge_handler); this._sasl_challenge_handler = null; } if(this._sasl_mechanism) this._sasl_mechanism.onFailure(); this._changeConnectStatus(Strophe.Status.AUTHFAIL, null); return false; }, /* jshint unused:true */ /** PrivateFunction: _auth2_cb * _Private_ handler to finish legacy authentication. * * This handler is called when the result from the jabber:iq:auth * <iq/> stanza is returned. * * Parameters: * (XMLElement) elem - The stanza that triggered the callback. * * Returns: * false to remove the handler. */ _auth2_cb: function (elem) { if (elem.getAttribute("type") == "result") { this.authenticated = true; this._changeConnectStatus(Strophe.Status.CONNECTED, null); } else if (elem.getAttribute("type") == "error") { this._changeConnectStatus(Strophe.Status.AUTHFAIL, null); this.disconnect('authentication failed'); } return false; }, /** PrivateFunction: _addSysTimedHandler * _Private_ function to add a system level timed handler. * * This function is used to add a Strophe.TimedHandler for the * library code. System timed handlers are allowed to run before * authentication is complete. * * Parameters: * (Integer) period - The period of the handler. * (Function) handler - The callback function. */ _addSysTimedHandler: function (period, handler) { var thand = new Strophe.TimedHandler(period, handler); thand.user = false; this.addTimeds.push(thand); return thand; }, /** PrivateFunction: _addSysHandler * _Private_ function to add a system level stanza handler. * * This function is used to add a Strophe.Handler for the * library code. System stanza handlers are allowed to run before * authentication is complete. * * Parameters: * (Function) handler - The callback function. * (String) ns - The namespace to match. * (String) name - The stanza name to match. * (String) type - The stanza type attribute to match. * (String) id - The stanza id attribute to match. */ _addSysHandler: function (handler, ns, name, type, id) { var hand = new Strophe.Handler(handler, ns, name, type, id); hand.user = false; this.addHandlers.push(hand); return hand; }, /** PrivateFunction: _onDisconnectTimeout * _Private_ timeout handler for handling non-graceful disconnection. * * If the graceful disconnect process does not complete within the * time allotted, this handler finishes the disconnect anyway. * * Returns: * false to remove the handler. */ _onDisconnectTimeout: function () { Strophe.info("_onDisconnectTimeout was called"); this._proto._onDisconnectTimeout(); // actually disconnect this._doDisconnect(); return false; }, /** PrivateFunction: _onIdle * _Private_ handler to process events during idle cycle. * * This handler is called every 100ms to fire timed handlers that * are ready and keep poll requests going. */ _onIdle: function () { var i, thand, since, newList; // add timed handlers scheduled for addition // NOTE: we add before remove in the case a timed handler is // added and then deleted before the next _onIdle() call. while (this.addTimeds.length > 0) { this.timedHandlers.push(this.addTimeds.pop()); } // remove timed handlers that have been scheduled for deletion while (this.removeTimeds.length > 0) { thand = this.removeTimeds.pop(); i = this.timedHandlers.indexOf(thand); if (i >= 0) { this.timedHandlers.splice(i, 1); } } // call ready timed handlers var now = new Date().getTime(); newList = []; for (i = 0; i < this.timedHandlers.length; i++) { thand = this.timedHandlers[i]; if (this.authenticated || !thand.user) { since = thand.lastCalled + thand.period; if (since - now <= 0) { if (thand.run()) { newList.push(thand); } } else { newList.push(thand); } } } this.timedHandlers = newList; clearTimeout(this._idleTimeout); this._proto._onIdle(); // reactivate the timer only if connected if (this.connected) { this._idleTimeout = setTimeout(this._onIdle.bind(this), 100); } } }; if (callback) { callback(Strophe, $build, $msg, $iq, $pres); } /** Class: Strophe.SASLMechanism * * encapsulates SASL authentication mechanisms. * * User code may override the priority for each mechanism or disable it completely. * See <priority> for information about changing priority and <test> for informatian on * how to disable a mechanism. * * By default, all mechanisms are enabled and the priorities are * * SCRAM-SHA1 - 40 * DIGEST-MD5 - 30 * Plain - 20 */ /** * PrivateConstructor: Strophe.SASLMechanism * SASL auth mechanism abstraction. * * Parameters: * (String) name - SASL Mechanism name. * (Boolean) isClientFirst - If client should send response first without challenge. * (Number) priority - Priority. * * Returns: * A new Strophe.SASLMechanism object. */ Strophe.SASLMechanism = function(name, isClientFirst, priority) { /** PrivateVariable: name * Mechanism name. */ this.name = name; /** PrivateVariable: isClientFirst * If client sends response without initial server challenge. */ this.isClientFirst = isClientFirst; /** Variable: priority * Determines which <SASLMechanism> is chosen for authentication (Higher is better). * Users may override this to prioritize mechanisms differently. * * In the default configuration the priorities are * * SCRAM-SHA1 - 40 * DIGEST-MD5 - 30 * Plain - 20 * * Example: (This will cause Strophe to choose the mechanism that the server sent first) * * > Strophe.SASLMD5.priority = Strophe.SASLSHA1.priority; * * See <SASL mechanisms> for a list of available mechanisms. * */ this.priority = priority; }; Strophe.SASLMechanism.prototype = { /** * Function: test * Checks if mechanism able to run. * To disable a mechanism, make this return false; * * To disable plain authentication run * > Strophe.SASLPlain.test = function() { * > return false; * > } * * See <SASL mechanisms> for a list of available mechanisms. * * Parameters: * (Strophe.Connection) connection - Target Connection. * * Returns: * (Boolean) If mechanism was able to run. */ /* jshint unused:false */ test: function(connection) { return true; }, /* jshint unused:true */ /** PrivateFunction: onStart * Called before starting mechanism on some connection. * * Parameters: * (Strophe.Connection) connection - Target Connection. */ onStart: function(connection) { this._connection = connection; }, /** PrivateFunction: onChallenge * Called by protocol implementation on incoming challenge. If client is * first (isClientFirst == true) challenge will be null on the first call. * * Parameters: * (Strophe.Connection) connection - Target Connection. * (String) challenge - current challenge to handle. * * Returns: * (String) Mechanism response. */ /* jshint unused:false */ onChallenge: function(connection, challenge) { throw new Error("You should implement challenge handling!"); }, /* jshint unused:true */ /** PrivateFunction: onFailure * Protocol informs mechanism implementation about SASL failure. */ onFailure: function() { this._connection = null; }, /** PrivateFunction: onSuccess * Protocol informs mechanism implementation about SASL success. */ onSuccess: function() { this._connection = null; } }; /** Constants: SASL mechanisms * Available authentication mechanisms * * Strophe.SASLAnonymous - SASL Anonymous authentication. * Strophe.SASLPlain - SASL Plain authentication. * Strophe.SASLMD5 - SASL Digest-MD5 authentication * Strophe.SASLSHA1 - SASL SCRAM-SHA1 authentication */ // Building SASL callbacks /** PrivateConstructor: SASLAnonymous * SASL Anonymous authentication. */ Strophe.SASLAnonymous = function() {}; Strophe.SASLAnonymous.prototype = new Strophe.SASLMechanism("ANONYMOUS", false, 10); Strophe.SASLAnonymous.test = function(connection) { return connection.authcid === null; }; Strophe.Connection.prototype.mechanisms[Strophe.SASLAnonymous.prototype.name] = Strophe.SASLAnonymous; /** PrivateConstructor: SASLPlain * SASL Plain authentication. */ Strophe.SASLPlain = function() {}; Strophe.SASLPlain.prototype = new Strophe.SASLMechanism("PLAIN", true, 20); Strophe.SASLPlain.test = function(connection) { return connection.authcid !== null; }; Strophe.SASLPlain.prototype.onChallenge = function(connection) { var auth_str = connection.authzid; auth_str = auth_str + "\u0000"; auth_str = auth_str + connection.authcid; auth_str = auth_str + "\u0000"; auth_str = auth_str + connection.pass; return auth_str; }; Strophe.Connection.prototype.mechanisms[Strophe.SASLPlain.prototype.name] = Strophe.SASLPlain; /** PrivateConstructor: SASLSHA1 * SASL SCRAM SHA 1 authentication. */ Strophe.SASLSHA1 = function() {}; /* TEST: * This is a simple example of a SCRAM-SHA-1 authentication exchange * when the client doesn't support channel bindings (username 'user' and * password 'pencil' are used): * * C: n,,n=user,r=fyko+d2lbbFgONRv9qkxdawL * S: r=fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j,s=QSXCR+Q6sek8bf92, * i=4096 * C: c=biws,r=fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j, * p=v0X8v3Bz2T0CJGbJQyF0X+HI4Ts= * S: v=rmF9pqV8S7suAoZWja4dJRkFsKQ= * */ Strophe.SASLSHA1.prototype = new Strophe.SASLMechanism("SCRAM-SHA-1", true, 40); Strophe.SASLSHA1.test = function(connection) { return connection.authcid !== null; }; Strophe.SASLSHA1.prototype.onChallenge = function(connection, challenge, test_cnonce) { var cnonce = test_cnonce || MD5.hexdigest(Math.random() * 1234567890); var auth_str = "n=" + connection.authcid; auth_str += ",r="; auth_str += cnonce; connection._sasl_data.cnonce = cnonce; connection._sasl_data["client-first-message-bare"] = auth_str; auth_str = "n,," + auth_str; this.onChallenge = function (connection, challenge) { var nonce, salt, iter, Hi, U, U_old, i, k; var clientKey, serverKey, clientSignature; var responseText = "c=biws,"; var authMessage = connection._sasl_data["client-first-message-bare"] + "," + challenge + ","; var cnonce = connection._sasl_data.cnonce; var attribMatch = /([a-z]+)=([^,]+)(,|$)/; while (challenge.match(attribMatch)) { var matches = challenge.match(attribMatch); challenge = challenge.replace(matches[0], ""); switch (matches[1]) { case "r": nonce = matches[2]; break; case "s": salt = matches[2]; break; case "i": iter = matches[2]; break; } } if (nonce.substr(0, cnonce.length) !== cnonce) { connection._sasl_data = {}; return connection._sasl_failure_cb(); } responseText += "r=" + nonce; authMessage += responseText; salt = Base64.decode(salt); salt += "\x00\x00\x00\x01"; Hi = U_old = core_hmac_sha1(connection.pass, salt); for (i = 1; i < iter; i++) { U = core_hmac_sha1(connection.pass, binb2str(U_old)); for (k = 0; k < 5; k++) { Hi[k] ^= U[k]; } U_old = U; } Hi = binb2str(Hi); clientKey = core_hmac_sha1(Hi, "Client Key"); serverKey = str_hmac_sha1(Hi, "Server Key"); clientSignature = core_hmac_sha1(str_sha1(binb2str(clientKey)), authMessage); connection._sasl_data["server-signature"] = b64_hmac_sha1(serverKey, authMessage); for (k = 0; k < 5; k++) { clientKey[k] ^= clientSignature[k]; } responseText += ",p=" + Base64.encode(binb2str(clientKey)); return responseText; }.bind(this); return auth_str; }; Strophe.Connection.prototype.mechanisms[Strophe.SASLSHA1.prototype.name] = Strophe.SASLSHA1; /** PrivateConstructor: SASLMD5 * SASL DIGEST MD5 authentication. */ Strophe.SASLMD5 = function() {}; Strophe.SASLMD5.prototype = new Strophe.SASLMechanism("DIGEST-MD5", false, 30); Strophe.SASLMD5.test = function(connection) { return connection.authcid !== null; }; /** PrivateFunction: _quote * _Private_ utility function to backslash escape and quote strings. * * Parameters: * (String) str - The string to be quoted. * * Returns: * quoted string */ Strophe.SASLMD5.prototype._quote = function (str) { return '"' + str.replace(/\\/g, "\\\\").replace(/"/g, '\\"') + '"'; //" end string workaround for emacs }; Strophe.SASLMD5.prototype.onChallenge = function(connection, challenge, test_cnonce) { var attribMatch = /([a-z]+)=("[^"]+"|[^,"]+)(?:,|$)/; var cnonce = test_cnonce || MD5.hexdigest("" + (Math.random() * 1234567890)); var realm = ""; var host = null; var nonce = ""; var qop = ""; var matches; while (challenge.match(attribMatch)) { matches = challenge.match(attribMatch); challenge = challenge.replace(matches[0], ""); matches[2] = matches[2].replace(/^"(.+)"$/, "$1"); switch (matches[1]) { case "realm": realm = matches[2]; break; case "nonce": nonce = matches[2]; break; case "qop": qop = matches[2]; break; case "host": host = matches[2]; break; } } var digest_uri = connection.servtype + "/" + connection.domain; if (host !== null) { digest_uri = digest_uri + "/" + host; } var A1 = MD5.hash(connection.authcid + ":" + realm + ":" + this._connection.pass) + ":" + nonce + ":" + cnonce; var A2 = 'AUTHENTICATE:' + digest_uri; var responseText = ""; responseText += 'charset=utf-8,'; responseText += 'username=' + this._quote(connection.authcid) + ','; responseText += 'realm=' + this._quote(realm) + ','; responseText += 'nonce=' + this._quote(nonce) + ','; responseText += 'nc=00000001,'; responseText += 'cnonce=' + this._quote(cnonce) + ','; responseText += 'digest-uri=' + this._quote(digest_uri) + ','; responseText += 'response=' + MD5.hexdigest(MD5.hexdigest(A1) + ":" + nonce + ":00000001:" + cnonce + ":auth:" + MD5.hexdigest(A2)) + ","; responseText += 'qop=auth'; this.onChallenge = function () { return ""; }.bind(this); return responseText; }; Strophe.Connection.prototype.mechanisms[Strophe.SASLMD5.prototype.name] = Strophe.SASLMD5; })(function () { window.Strophe = arguments[0]; window.$build = arguments[1]; window.$msg = arguments[2]; window.$iq = arguments[3]; window.$pres = arguments[4]; }); /* This program is distributed under the terms of the MIT license. Please see the LICENSE file for details. Copyright 2006-2008, OGG, LLC */ /* jshint undef: true, unused: true:, noarg: true, latedef: true */ /*global window, setTimeout, clearTimeout, XMLHttpRequest, ActiveXObject, Strophe, $build */ /** PrivateClass: Strophe.Request * _Private_ helper class that provides a cross implementation abstraction * for a BOSH related XMLHttpRequest. * * The Strophe.Request class is used internally to encapsulate BOSH request * information. It is not meant to be used from user's code. */ /** PrivateConstructor: Strophe.Request * Create and initialize a new Strophe.Request object. * * Parameters: * (XMLElement) elem - The XML data to be sent in the request. * (Function) func - The function that will be called when the * XMLHttpRequest readyState changes. * (Integer) rid - The BOSH rid attribute associated with this request. * (Integer) sends - The number of times this same request has been * sent. */ Strophe.Request = function (elem, func, rid, sends) { this.id = ++Strophe._requestId; this.xmlData = elem; this.data = Strophe.serialize(elem); // save original function in case we need to make a new request // from this one. this.origFunc = func; this.func = func; this.rid = rid; this.date = NaN; this.sends = sends || 0; this.abort = false; this.dead = null; this.age = function () { if (!this.date) { return 0; } var now = new Date(); return (now - this.date) / 1000; }; this.timeDead = function () { if (!this.dead) { return 0; } var now = new Date(); return (now - this.dead) / 1000; }; this.xhr = this._newXHR(); }; Strophe.Request.prototype = { /** PrivateFunction: getResponse * Get a response from the underlying XMLHttpRequest. * * This function attempts to get a response from the request and checks * for errors. * * Throws: * "parsererror" - A parser error occured. * * Returns: * The DOM element tree of the response. */ getResponse: function () { var node = null; if (this.xhr.responseXML && this.xhr.responseXML.documentElement) { node = this.xhr.responseXML.documentElement; if (node.tagName == "parsererror") { Strophe.error("invalid response received"); Strophe.error("responseText: " + this.xhr.responseText); Strophe.error("responseXML: " + Strophe.serialize(this.xhr.responseXML)); throw "parsererror"; } } else if (this.xhr.responseText) { Strophe.error("invalid response received"); Strophe.error("responseText: " + this.xhr.responseText); Strophe.error("responseXML: " + Strophe.serialize(this.xhr.responseXML)); } return node; }, /** PrivateFunction: _newXHR * _Private_ helper function to create XMLHttpRequests. * * This function creates XMLHttpRequests across all implementations. * * Returns: * A new XMLHttpRequest. */ _newXHR: function () { var xhr = null; if (window.XMLHttpRequest) { xhr = new XMLHttpRequest(); if (xhr.overrideMimeType) { xhr.overrideMimeType("text/xml"); } } else if (window.ActiveXObject) { xhr = new ActiveXObject("Microsoft.XMLHTTP"); } // use Function.bind() to prepend ourselves as an argument xhr.onreadystatechange = this.func.bind(null, this); return xhr; } }; /** Class: Strophe.Bosh * _Private_ helper class that handles BOSH Connections * * The Strophe.Bosh class is used internally by Strophe.Connection * to encapsulate BOSH sessions. It is not meant to be used from user's code. */ /** File: bosh.js * A JavaScript library to enable BOSH in Strophejs. * * this library uses Bidirectional-streams Over Synchronous HTTP (BOSH) * to emulate a persistent, stateful, two-way connection to an XMPP server. * More information on BOSH can be found in XEP 124. */ /** PrivateConstructor: Strophe.Bosh * Create and initialize a Strophe.Bosh object. * * Parameters: * (Strophe.Connection) connection - The Strophe.Connection that will use BOSH. * * Returns: * A new Strophe.Bosh object. */ Strophe.Bosh = function(connection) { this._conn = connection; /* request id for body tags */ this.rid = Math.floor(Math.random() * 4294967295); /* The current session ID. */ this.sid = null; // default BOSH values this.hold = 1; this.wait = 60; this.window = 5; this._requests = []; }; Strophe.Bosh.prototype = { /** Variable: strip * * BOSH-Connections will have all stanzas wrapped in a <body> tag when * passed to <Strophe.Connection.xmlInput> or <Strophe.Connection.xmlOutput>. * To strip this tag, User code can set <Strophe.Bosh.strip> to "body": * * > Strophe.Bosh.prototype.strip = "body"; * * This will enable stripping of the body tag in both * <Strophe.Connection.xmlInput> and <Strophe.Connection.xmlOutput>. */ strip: null, /** PrivateFunction: _buildBody * _Private_ helper function to generate the <body/> wrapper for BOSH. * * Returns: * A Strophe.Builder with a <body/> element. */ _buildBody: function () { var bodyWrap = $build('body', { rid: this.rid++, xmlns: Strophe.NS.HTTPBIND }); if (this.sid !== null) { bodyWrap.attrs({sid: this.sid}); } return bodyWrap; }, /** PrivateFunction: _reset * Reset the connection. * * This function is called by the reset function of the Strophe Connection */ _reset: function () { this.rid = Math.floor(Math.random() * 4294967295); this.sid = null; }, /** PrivateFunction: _connect * _Private_ function that initializes the BOSH connection. * * Creates and sends the Request that initializes the BOSH connection. */ _connect: function (wait, hold, route) { this.wait = wait || this.wait; this.hold = hold || this.hold; // build the body tag var body = this._buildBody().attrs({ to: this._conn.domain, "xml:lang": "en", wait: this.wait, hold: this.hold, content: "text/xml; charset=utf-8", ver: "1.6", "xmpp:version": "1.0", "xmlns:xmpp": Strophe.NS.BOSH }); if(route){ body.attrs({ route: route }); } var _connect_cb = this._conn._connect_cb; this._requests.push( new Strophe.Request(body.tree(), this._onRequestStateChange.bind( this, _connect_cb.bind(this._conn)), body.tree().getAttribute("rid"))); this._throttledRequestHandler(); }, /** PrivateFunction: _attach * Attach to an already created and authenticated BOSH session. * * This function is provided to allow Strophe to attach to BOSH * sessions which have been created externally, perhaps by a Web * application. This is often used to support auto-login type features * without putting user credentials into the page. * * Parameters: * (String) jid - The full JID that is bound by the session. * (String) sid - The SID of the BOSH session. * (String) rid - The current RID of the BOSH session. This RID * will be used by the next request. * (Function) callback The connect callback function. * (Integer) wait - The optional HTTPBIND wait value. This is the * time the server will wait before returning an empty result for * a request. The default setting of 60 seconds is recommended. * Other settings will require tweaks to the Strophe.TIMEOUT value. * (Integer) hold - The optional HTTPBIND hold value. This is the * number of connections the server will hold at one time. This * should almost always be set to 1 (the default). * (Integer) wind - The optional HTTBIND window value. This is the * allowed range of request ids that are valid. The default is 5. */ _attach: function (jid, sid, rid, callback, wait, hold, wind) { this._conn.jid = jid; this.sid = sid; this.rid = rid; this._conn.connect_callback = callback; this._conn.domain = Strophe.getDomainFromJid(this._conn.jid); this._conn.authenticated = true; this._conn.connected = true; this.wait = wait || this.wait; this.hold = hold || this.hold; this.window = wind || this.window; this._conn._changeConnectStatus(Strophe.Status.ATTACHED, null); }, /** PrivateFunction: _connect_cb * _Private_ handler for initial connection request. * * This handler is used to process the Bosh-part of the initial request. * Parameters: * (Strophe.Request) bodyWrap - The received stanza. */ _connect_cb: function (bodyWrap) { var typ = bodyWrap.getAttribute("type"); var cond, conflict; if (typ !== null && typ == "terminate") { // an error occurred Strophe.error("BOSH-Connection failed: " + cond); cond = bodyWrap.getAttribute("condition"); conflict = bodyWrap.getElementsByTagName("conflict"); if (cond !== null) { if (cond == "remote-stream-error" && conflict.length > 0) { cond = "conflict"; } this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, cond); } else { this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, "unknown"); } this._conn._doDisconnect(); return Strophe.Status.CONNFAIL; } // check to make sure we don't overwrite these if _connect_cb is // called multiple times in the case of missing stream:features if (!this.sid) { this.sid = bodyWrap.getAttribute("sid"); } var wind = bodyWrap.getAttribute('requests'); if (wind) { this.window = parseInt(wind, 10); } var hold = bodyWrap.getAttribute('hold'); if (hold) { this.hold = parseInt(hold, 10); } var wait = bodyWrap.getAttribute('wait'); if (wait) { this.wait = parseInt(wait, 10); } }, /** PrivateFunction: _disconnect * _Private_ part of Connection.disconnect for Bosh * * Parameters: * (Request) pres - This stanza will be sent before disconnecting. */ _disconnect: function (pres) { this._sendTerminate(pres); }, /** PrivateFunction: _doDisconnect * _Private_ function to disconnect. * * Resets the SID and RID. */ _doDisconnect: function () { this.sid = null; this.rid = Math.floor(Math.random() * 4294967295); }, /** PrivateFunction: _emptyQueue * _Private_ function to check if the Request queue is empty. * * Returns: * True, if there are no Requests queued, False otherwise. */ _emptyQueue: function () { return this._requests.length === 0; }, /** PrivateFunction: _hitError * _Private_ function to handle the error count. * * Requests are resent automatically until their error count reaches * 5. Each time an error is encountered, this function is called to * increment the count and disconnect if the count is too high. * * Parameters: * (Integer) reqStatus - The request status. */ _hitError: function (reqStatus) { this.errors++; Strophe.warn("request errored, status: " + reqStatus + ", number of errors: " + this.errors); if (this.errors > 4) { this._onDisconnectTimeout(); } }, /** PrivateFunction: _no_auth_received * * Called on stream start/restart when no stream:features * has been received and sends a blank poll request. */ _no_auth_received: function (_callback) { if (_callback) { _callback = _callback.bind(this._conn); } else { _callback = this._conn._connect_cb.bind(this._conn); } var body = this._buildBody(); this._requests.push( new Strophe.Request(body.tree(), this._onRequestStateChange.bind( this, _callback.bind(this._conn)), body.tree().getAttribute("rid"))); this._throttledRequestHandler(); }, /** PrivateFunction: _onDisconnectTimeout * _Private_ timeout handler for handling non-graceful disconnection. * * Cancels all remaining Requests and clears the queue. */ _onDisconnectTimeout: function () { var req; while (this._requests.length > 0) { req = this._requests.pop(); req.abort = true; req.xhr.abort(); // jslint complains, but this is fine. setting to empty func // is necessary for IE6 req.xhr.onreadystatechange = function () {}; // jshint ignore:line } }, /** PrivateFunction: _onIdle * _Private_ handler called by Strophe.Connection._onIdle * * Sends all queued Requests or polls with empty Request if there are none. */ _onIdle: function () { var data = this._conn._data; // if no requests are in progress, poll if (this._conn.authenticated && this._requests.length === 0 && data.length === 0 && !this._conn.disconnecting) { Strophe.info("no requests during idle cycle, sending " + "blank request"); data.push(null); } if (this._requests.length < 2 && data.length > 0 && !this._conn.paused) { var body = this._buildBody(); for (var i = 0; i < data.length; i++) { if (data[i] !== null) { if (data[i] === "restart") { body.attrs({ to: this._conn.domain, "xml:lang": "en", "xmpp:restart": "true", "xmlns:xmpp": Strophe.NS.BOSH }); } else { body.cnode(data[i]).up(); } } } delete this._conn._data; this._conn._data = []; this._requests.push( new Strophe.Request(body.tree(), this._onRequestStateChange.bind( this, this._conn._dataRecv.bind(this._conn)), body.tree().getAttribute("rid"))); this._processRequest(this._requests.length - 1); } if (this._requests.length > 0) { var time_elapsed = this._requests[0].age(); if (this._requests[0].dead !== null) { if (this._requests[0].timeDead() > Math.floor(Strophe.SECONDARY_TIMEOUT * this.wait)) { this._throttledRequestHandler(); } } if (time_elapsed > Math.floor(Strophe.TIMEOUT * this.wait)) { Strophe.warn("Request " + this._requests[0].id + " timed out, over " + Math.floor(Strophe.TIMEOUT * this.wait) + " seconds since last activity"); this._throttledRequestHandler(); } } }, /** PrivateFunction: _onRequestStateChange * _Private_ handler for Strophe.Request state changes. * * This function is called when the XMLHttpRequest readyState changes. * It contains a lot of error handling logic for the many ways that * requests can fail, and calls the request callback when requests * succeed. * * Parameters: * (Function) func - The handler for the request. * (Strophe.Request) req - The request that is changing readyState. */ _onRequestStateChange: function (func, req) { Strophe.debug("request id " + req.id + "." + req.sends + " state changed to " + req.xhr.readyState); if (req.abort) { req.abort = false; return; } // request complete var reqStatus; if (req.xhr.readyState == 4) { reqStatus = 0; try { reqStatus = req.xhr.status; } catch (e) { // ignore errors from undefined status attribute. works // around a browser bug } if (typeof(reqStatus) == "undefined") { reqStatus = 0; } if (this.disconnecting) { if (reqStatus >= 400) { this._hitError(reqStatus); return; } } var reqIs0 = (this._requests[0] == req); var reqIs1 = (this._requests[1] == req); if ((reqStatus > 0 && reqStatus < 500) || req.sends > 5) { // remove from internal queue this._removeRequest(req); Strophe.debug("request id " + req.id + " should now be removed"); } // request succeeded if (reqStatus == 200) { // if request 1 finished, or request 0 finished and request // 1 is over Strophe.SECONDARY_TIMEOUT seconds old, we need to // restart the other - both will be in the first spot, as the // completed request has been removed from the queue already if (reqIs1 || (reqIs0 && this._requests.length > 0 && this._requests[0].age() > Math.floor(Strophe.SECONDARY_TIMEOUT * this.wait))) { this._restartRequest(0); } // call handler Strophe.debug("request id " + req.id + "." + req.sends + " got 200"); func(req); this.errors = 0; } else { Strophe.error("request id " + req.id + "." + req.sends + " error " + reqStatus + " happened"); if (reqStatus === 0 || (reqStatus >= 400 && reqStatus < 600) || reqStatus >= 12000) { this._hitError(reqStatus); if (reqStatus >= 400 && reqStatus < 500) { this._conn._changeConnectStatus(Strophe.Status.DISCONNECTING, null); this._conn._doDisconnect(); } } } if (!((reqStatus > 0 && reqStatus < 500) || req.sends > 5)) { this._throttledRequestHandler(); } } }, /** PrivateFunction: _processRequest * _Private_ function to process a request in the queue. * * This function takes requests off the queue and sends them and * restarts dead requests. * * Parameters: * (Integer) i - The index of the request in the queue. */ _processRequest: function (i) { var self = this; var req = this._requests[i]; var reqStatus = -1; try { if (req.xhr.readyState == 4) { reqStatus = req.xhr.status; } } catch (e) { Strophe.error("caught an error in _requests[" + i + "], reqStatus: " + reqStatus); } if (typeof(reqStatus) == "undefined") { reqStatus = -1; } // make sure we limit the number of retries if (req.sends > this.maxRetries) { this._onDisconnectTimeout(); return; } var time_elapsed = req.age(); var primaryTimeout = (!isNaN(time_elapsed) && time_elapsed > Math.floor(Strophe.TIMEOUT * this.wait)); var secondaryTimeout = (req.dead !== null && req.timeDead() > Math.floor(Strophe.SECONDARY_TIMEOUT * this.wait)); var requestCompletedWithServerError = (req.xhr.readyState == 4 && (reqStatus < 1 || reqStatus >= 500)); if (primaryTimeout || secondaryTimeout || requestCompletedWithServerError) { if (secondaryTimeout) { Strophe.error("Request " + this._requests[i].id + " timed out (secondary), restarting"); } req.abort = true; req.xhr.abort(); // setting to null fails on IE6, so set to empty function req.xhr.onreadystatechange = function () {}; this._requests[i] = new Strophe.Request(req.xmlData, req.origFunc, req.rid, req.sends); req = this._requests[i]; } if (req.xhr.readyState === 0) { Strophe.debug("request id " + req.id + "." + req.sends + " posting"); try { req.xhr.open("POST", this._conn.service, this._conn.options.sync ? false : true); } catch (e2) { Strophe.error("XHR open failed."); if (!this._conn.connected) { this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, "bad-service"); } this._conn.disconnect(); return; } // Fires the XHR request -- may be invoked immediately // or on a gradually expanding retry window for reconnects var sendFunc = function () { req.date = new Date(); if (self._conn.options.customHeaders){ var headers = self._conn.options.customHeaders; for (var header in headers) { if (headers.hasOwnProperty(header)) { req.xhr.setRequestHeader(header, headers[header]); } } } req.xhr.send(req.data); }; // Implement progressive backoff for reconnects -- // First retry (send == 1) should also be instantaneous if (req.sends > 1) { // Using a cube of the retry number creates a nicely // expanding retry window var backoff = Math.min(Math.floor(Strophe.TIMEOUT * this.wait), Math.pow(req.sends, 3)) * 1000; setTimeout(sendFunc, backoff); } else { sendFunc(); } req.sends++; if (this._conn.xmlOutput !== Strophe.Connection.prototype.xmlOutput) { if (req.xmlData.nodeName === this.strip && req.xmlData.childNodes.length) { this._conn.xmlOutput(req.xmlData.childNodes[0]); } else { this._conn.xmlOutput(req.xmlData); } } if (this._conn.rawOutput !== Strophe.Connection.prototype.rawOutput) { this._conn.rawOutput(req.data); } } else { Strophe.debug("_processRequest: " + (i === 0 ? "first" : "second") + " request has readyState of " + req.xhr.readyState); } }, /** PrivateFunction: _removeRequest * _Private_ function to remove a request from the queue. * * Parameters: * (Strophe.Request) req - The request to remove. */ _removeRequest: function (req) { Strophe.debug("removing request"); var i; for (i = this._requests.length - 1; i >= 0; i--) { if (req == this._requests[i]) { this._requests.splice(i, 1); } } // IE6 fails on setting to null, so set to empty function req.xhr.onreadystatechange = function () {}; this._throttledRequestHandler(); }, /** PrivateFunction: _restartRequest * _Private_ function to restart a request that is presumed dead. * * Parameters: * (Integer) i - The index of the request in the queue. */ _restartRequest: function (i) { var req = this._requests[i]; if (req.dead === null) { req.dead = new Date(); } this._processRequest(i); }, /** PrivateFunction: _reqToData * _Private_ function to get a stanza out of a request. * * Tries to extract a stanza out of a Request Object. * When this fails the current connection will be disconnected. * * Parameters: * (Object) req - The Request. * * Returns: * The stanza that was passed. */ _reqToData: function (req) { try { return req.getResponse(); } catch (e) { if (e != "parsererror") { throw e; } this._conn.disconnect("strophe-parsererror"); } }, /** PrivateFunction: _sendTerminate * _Private_ function to send initial disconnect sequence. * * This is the first step in a graceful disconnect. It sends * the BOSH server a terminate body and includes an unavailable * presence if authentication has completed. */ _sendTerminate: function (pres) { Strophe.info("_sendTerminate was called"); var body = this._buildBody().attrs({type: "terminate"}); if (pres) { body.cnode(pres.tree()); } var req = new Strophe.Request(body.tree(), this._onRequestStateChange.bind( this, this._conn._dataRecv.bind(this._conn)), body.tree().getAttribute("rid")); this._requests.push(req); this._throttledRequestHandler(); }, /** PrivateFunction: _send * _Private_ part of the Connection.send function for BOSH * * Just triggers the RequestHandler to send the messages that are in the queue */ _send: function () { clearTimeout(this._conn._idleTimeout); this._throttledRequestHandler(); this._conn._idleTimeout = setTimeout(this._conn._onIdle.bind(this._conn), 100); }, /** PrivateFunction: _sendRestart * * Send an xmpp:restart stanza. */ _sendRestart: function () { this._throttledRequestHandler(); clearTimeout(this._conn._idleTimeout); }, /** PrivateFunction: _throttledRequestHandler * _Private_ function to throttle requests to the connection window. * * This function makes sure we don't send requests so fast that the * request ids overflow the connection window in the case that one * request died. */ _throttledRequestHandler: function () { if (!this._requests) { Strophe.debug("_throttledRequestHandler called with " + "undefined requests"); } else { Strophe.debug("_throttledRequestHandler called with " + this._requests.length + " requests"); } if (!this._requests || this._requests.length === 0) { return; } if (this._requests.length > 0) { this._processRequest(0); } if (this._requests.length > 1 && Math.abs(this._requests[0].rid - this._requests[1].rid) < this.window) { this._processRequest(1); } } }; /* This program is distributed under the terms of the MIT license. Please see the LICENSE file for details. Copyright 2006-2008, OGG, LLC */ /* jshint undef: true, unused: true:, noarg: true, latedef: true */ /*global document, window, clearTimeout, WebSocket, DOMParser, Strophe, $build */ /** Class: Strophe.WebSocket * _Private_ helper class that handles WebSocket Connections * * The Strophe.WebSocket class is used internally by Strophe.Connection * to encapsulate WebSocket sessions. It is not meant to be used from user's code. */ /** File: websocket.js * A JavaScript library to enable XMPP over Websocket in Strophejs. * * This file implements XMPP over WebSockets for Strophejs. * If a Connection is established with a Websocket url (ws://...) * Strophe will use WebSockets. * For more information on XMPP-over WebSocket see this RFC draft: * http://tools.ietf.org/html/draft-ietf-xmpp-websocket-00 * * WebSocket support implemented by Andreas Guth (andreas.guth@rwth-aachen.de) */ /** PrivateConstructor: Strophe.Websocket * Create and initialize a Strophe.WebSocket object. * Currently only sets the connection Object. * * Parameters: * (Strophe.Connection) connection - The Strophe.Connection that will use WebSockets. * * Returns: * A new Strophe.WebSocket object. */ Strophe.Websocket = function(connection) { this._conn = connection; this.strip = "stream:stream"; var service = connection.service; if (service.indexOf("ws:") !== 0 && service.indexOf("wss:") !== 0) { // If the service is not an absolute URL, assume it is a path and put the absolute // URL together from options, current URL and the path. var new_service = ""; if (connection.options.protocol === "ws" && window.location.protocol !== "https:") { new_service += "ws"; } else { new_service += "wss"; } new_service += "://" + window.location.host; if (service.indexOf("/") !== 0) { new_service += window.location.pathname + service; } else { new_service += service; } connection.service = new_service; } }; Strophe.Websocket.prototype = { /** PrivateFunction: _buildStream * _Private_ helper function to generate the <stream> start tag for WebSockets * * Returns: * A Strophe.Builder with a <stream> element. */ _buildStream: function () { return $build("stream:stream", { "to": this._conn.domain, "xmlns": Strophe.NS.CLIENT, "xmlns:stream": Strophe.NS.STREAM, "version": '1.0' }); }, /** PrivateFunction: _check_streamerror * _Private_ checks a message for stream:error * * Parameters: * (Strophe.Request) bodyWrap - The received stanza. * connectstatus - The ConnectStatus that will be set on error. * Returns: * true if there was a streamerror, false otherwise. */ _check_streamerror: function (bodyWrap, connectstatus) { var errors = bodyWrap.getElementsByTagName("stream:error"); if (errors.length === 0) { return false; } var error = errors[0]; var condition = ""; var text = ""; var ns = "urn:ietf:params:xml:ns:xmpp-streams"; for (var i = 0; i < error.childNodes.length; i++) { var e = error.childNodes[i]; if (e.getAttribute("xmlns") !== ns) { break; } if (e.nodeName === "text") { text = e.textContent; } else { condition = e.nodeName; } } var errorString = "WebSocket stream error: "; if (condition) { errorString += condition; } else { errorString += "unknown"; } if (text) { errorString += " - " + condition; } Strophe.error(errorString); // close the connection on stream_error this._conn._changeConnectStatus(connectstatus, condition); this._conn._doDisconnect(); return true; }, /** PrivateFunction: _reset * Reset the connection. * * This function is called by the reset function of the Strophe Connection. * Is not needed by WebSockets. */ _reset: function () { return; }, /** PrivateFunction: _connect * _Private_ function called by Strophe.Connection.connect * * Creates a WebSocket for a connection and assigns Callbacks to it. * Does nothing if there already is a WebSocket. */ _connect: function () { // Ensure that there is no open WebSocket from a previous Connection. this._closeSocket(); // Create the new WobSocket this.socket = new WebSocket(this._conn.service, "xmpp"); this.socket.onopen = this._onOpen.bind(this); this.socket.onerror = this._onError.bind(this); this.socket.onclose = this._onClose.bind(this); this.socket.onmessage = this._connect_cb_wrapper.bind(this); }, /** PrivateFunction: _connect_cb * _Private_ function called by Strophe.Connection._connect_cb * * checks for stream:error * * Parameters: * (Strophe.Request) bodyWrap - The received stanza. */ _connect_cb: function(bodyWrap) { var error = this._check_streamerror(bodyWrap, Strophe.Status.CONNFAIL); if (error) { return Strophe.Status.CONNFAIL; } }, /** PrivateFunction: _handleStreamStart * _Private_ function that checks the opening stream:stream tag for errors. * * Disconnects if there is an error and returns false, true otherwise. * * Parameters: * (Node) message - Stanza containing the stream:stream. */ _handleStreamStart: function(message) { var error = false; // Check for errors in the stream:stream tag var ns = message.getAttribute("xmlns"); if (typeof ns !== "string") { error = "Missing xmlns in stream:stream"; } else if (ns !== Strophe.NS.CLIENT) { error = "Wrong xmlns in stream:stream: " + ns; } var ns_stream = message.namespaceURI; if (typeof ns_stream !== "string") { error = "Missing xmlns:stream in stream:stream"; } else if (ns_stream !== Strophe.NS.STREAM) { error = "Wrong xmlns:stream in stream:stream: " + ns_stream; } var ver = message.getAttribute("version"); if (typeof ver !== "string") { error = "Missing version in stream:stream"; } else if (ver !== "1.0") { error = "Wrong version in stream:stream: " + ver; } if (error) { this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, error); this._conn._doDisconnect(); return false; } return true; }, /** PrivateFunction: _connect_cb_wrapper * _Private_ function that handles the first connection messages. * * On receiving an opening stream tag this callback replaces itself with the real * message handler. On receiving a stream error the connection is terminated. */ _connect_cb_wrapper: function(message) { if (message.data.indexOf("<stream:stream ") === 0 || message.data.indexOf("<?xml") === 0) { // Strip the XML Declaration, if there is one var data = message.data.replace(/^(<\?.*?\?>\s*)*/, ""); if (data === '') return; //Make the initial stream:stream selfclosing to parse it without a SAX parser. data = message.data.replace(/<stream:stream (.*[^\/])>/, "<stream:stream $1/>"); var streamStart = new DOMParser().parseFromString(data, "text/xml").documentElement; this._conn.xmlInput(streamStart); this._conn.rawInput(message.data); //_handleStreamSteart will check for XML errors and disconnect on error if (this._handleStreamStart(streamStart)) { //_connect_cb will check for stream:error and disconnect on error this._connect_cb(streamStart); // ensure received stream:stream is NOT selfclosing and save it for following messages this.streamStart = message.data.replace(/^<stream:(.*)\/>$/, "<stream:$1>"); } } else if (message.data === "</stream:stream>") { this._conn.rawInput(message.data); this._conn.xmlInput(document.createElement("stream:stream")); this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, "Received closing stream"); this._conn._doDisconnect(); return; } else { var string = this._streamWrap(message.data); var elem = new DOMParser().parseFromString(string, "text/xml").documentElement; this.socket.onmessage = this._onMessage.bind(this); this._conn._connect_cb(elem, null, message.data); } }, /** PrivateFunction: _disconnect * _Private_ function called by Strophe.Connection.disconnect * * Disconnects and sends a last stanza if one is given * * Parameters: * (Request) pres - This stanza will be sent before disconnecting. */ _disconnect: function (pres) { if (this.socket.readyState !== WebSocket.CLOSED) { if (pres) { this._conn.send(pres); } var close = '</stream:stream>'; this._conn.xmlOutput(document.createElement("stream:stream")); this._conn.rawOutput(close); try { this.socket.send(close); } catch (e) { Strophe.info("Couldn't send closing stream tag."); } } this._conn._doDisconnect(); }, /** PrivateFunction: _doDisconnect * _Private_ function to disconnect. * * Just closes the Socket for WebSockets */ _doDisconnect: function () { Strophe.info("WebSockets _doDisconnect was called"); this._closeSocket(); }, /** PrivateFunction _streamWrap * _Private_ helper function to wrap a stanza in a <stream> tag. * This is used so Strophe can process stanzas from WebSockets like BOSH */ _streamWrap: function (stanza) { return this.streamStart + stanza + '</stream:stream>'; }, /** PrivateFunction: _closeSocket * _Private_ function to close the WebSocket. * * Closes the socket if it is still open and deletes it */ _closeSocket: function () { if (this.socket) { try { this.socket.close(); } catch (e) {} } this.socket = null; }, /** PrivateFunction: _emptyQueue * _Private_ function to check if the message queue is empty. * * Returns: * True, because WebSocket messages are send immediately after queueing. */ _emptyQueue: function () { return true; }, /** PrivateFunction: _onClose * _Private_ function to handle websockets closing. * * Nothing to do here for WebSockets */ _onClose: function() { if(this._conn.connected && !this._conn.disconnecting) { Strophe.error("Websocket closed unexcectedly"); this._conn._doDisconnect(); } else { Strophe.info("Websocket closed"); } }, /** PrivateFunction: _no_auth_received * * Called on stream start/restart when no stream:features * has been received. */ _no_auth_received: function (_callback) { Strophe.error("Server did not send any auth methods"); this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, "Server did not send any auth methods"); if (_callback) { _callback = _callback.bind(this._conn); _callback(); } this._conn._doDisconnect(); }, /** PrivateFunction: _onDisconnectTimeout * _Private_ timeout handler for handling non-graceful disconnection. * * This does nothing for WebSockets */ _onDisconnectTimeout: function () {}, /** PrivateFunction: _onError * _Private_ function to handle websockets errors. * * Parameters: * (Object) error - The websocket error. */ _onError: function(error) { Strophe.error("Websocket error " + error); this._conn._changeConnectStatus(Strophe.Status.CONNFAIL, "The WebSocket connection could not be established was disconnected."); this._disconnect(); }, /** PrivateFunction: _onIdle * _Private_ function called by Strophe.Connection._onIdle * * sends all queued stanzas */ _onIdle: function () { var data = this._conn._data; if (data.length > 0 && !this._conn.paused) { for (var i = 0; i < data.length; i++) { if (data[i] !== null) { var stanza, rawStanza; if (data[i] === "restart") { stanza = this._buildStream(); rawStanza = this._removeClosingTag(stanza); stanza = stanza.tree(); } else { stanza = data[i]; rawStanza = Strophe.serialize(stanza); } this._conn.xmlOutput(stanza); this._conn.rawOutput(rawStanza); this.socket.send(rawStanza); } } this._conn._data = []; } }, /** PrivateFunction: _onMessage * _Private_ function to handle websockets messages. * * This function parses each of the messages as if they are full documents. [TODO : We may actually want to use a SAX Push parser]. * * Since all XMPP traffic starts with "<stream:stream version='1.0' xml:lang='en' xmlns='jabber:client' xmlns:stream='http://etherx.jabber.org/streams' id='3697395463' from='SERVER'>" * The first stanza will always fail to be parsed... * Addtionnaly, the seconds stanza will always be a <stream:features> with the stream NS defined in the previous stanza... so we need to 'force' the inclusion of the NS in this stanza! * * Parameters: * (string) message - The websocket message. */ _onMessage: function(message) { var elem, data; // check for closing stream if (message.data === "</stream:stream>") { var close = "</stream:stream>"; this._conn.rawInput(close); this._conn.xmlInput(document.createElement("stream:stream")); if (!this._conn.disconnecting) { this._conn._doDisconnect(); } return; } else if (message.data.search("<stream:stream ") === 0) { //Make the initial stream:stream selfclosing to parse it without a SAX parser. data = message.data.replace(/<stream:stream (.*[^\/])>/, "<stream:stream $1/>"); elem = new DOMParser().parseFromString(data, "text/xml").documentElement; if (!this._handleStreamStart(elem)) { return; } } else { data = this._streamWrap(message.data); elem = new DOMParser().parseFromString(data, "text/xml").documentElement; } if (this._check_streamerror(elem, Strophe.Status.ERROR)) { return; } //handle unavailable presence stanza before disconnecting if (this._conn.disconnecting && elem.firstChild.nodeName === "presence" && elem.firstChild.getAttribute("type") === "unavailable") { this._conn.xmlInput(elem); this._conn.rawInput(Strophe.serialize(elem)); // if we are already disconnecting we will ignore the unavailable stanza and // wait for the </stream:stream> tag before we close the connection return; } this._conn._dataRecv(elem, message.data); }, /** PrivateFunction: _onOpen * _Private_ function to handle websockets connection setup. * * The opening stream tag is sent here. */ _onOpen: function() { Strophe.info("Websocket open"); var start = this._buildStream(); this._conn.xmlOutput(start.tree()); var startString = this._removeClosingTag(start); this._conn.rawOutput(startString); this.socket.send(startString); }, /** PrivateFunction: _removeClosingTag * _Private_ function to Make the first <stream:stream> non-selfclosing * * Parameters: * (Object) elem - The <stream:stream> tag. * * Returns: * The stream:stream tag as String */ _removeClosingTag: function(elem) { var string = Strophe.serialize(elem); string = string.replace(/<(stream:stream .*[^\/])\/>$/, "<$1>"); return string; }, /** PrivateFunction: _reqToData * _Private_ function to get a stanza out of a request. * * WebSockets don't use requests, so the passed argument is just returned. * * Parameters: * (Object) stanza - The stanza. * * Returns: * The stanza that was passed. */ _reqToData: function (stanza) { return stanza; }, /** PrivateFunction: _send * _Private_ part of the Connection.send function for WebSocket * * Just flushes the messages that are in the queue */ _send: function () { this._conn.flush(); }, /** PrivateFunction: _sendRestart * * Send an xmpp:restart stanza. */ _sendRestart: function () { clearTimeout(this._conn._idleTimeout); this._conn._onIdle.bind(this._conn)(); } }; |