--- /dev/null
+/*! Socket.IO.js build:0.7.4, development. Copyright(c) 2011 LearnBoost <dev@learnboost.com> MIT Licensed */
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports) {
+
+ /**
+ * IO namespace.
+ *
+ * @namespace
+ */
+
+ var io = exports;
+
+ /**
+ * Socket.IO version
+ *
+ * @api public
+ */
+
+ io.version = '0.7.4';
+
+ /**
+ * Protocol implemented.
+ *
+ * @api public
+ */
+
+ io.protocol = 1;
+
+ /**
+ * Available transports, these will be populated with the available transports
+ *
+ * @api public
+ */
+
+ io.transports = [];
+
+ /**
+ * Keep track of jsonp callbacks.
+ *
+ * @api private
+ */
+
+ io.j = [];
+
+ /**
+ * Keep track of our io.Sockets
+ *
+ * @api private
+ */
+ io.sockets = {};
+
+
+ /**
+ * Manages connections to hosts.
+ *
+ * @param {String} uri
+ * @Param {Boolean} force creation of new socket (defaults to false)
+ * @api public
+ */
+
+ io.connect = function (host, details) {
+ var uri = io.util.parseUri(host)
+ , uuri
+ , socket;
+
+ if ('undefined' != typeof document) {
+ uri.protocol = uri.protocol || document.location.protocol.slice(0, -1);
+ uri.host = uri.host || document.domain;
+ uri.port = uri.port || document.location.port;
+ }
+
+ uuri = io.util.uniqueUri(uri);
+
+ var options = {
+ host: uri.host
+ , secure: uri.protocol == 'https'
+ , port: uri.port || 80
+ };
+ io.util.merge(options, details);
+
+ if (options['force new connection'] || !io.sockets[uuri]) {
+ socket = new io.Socket(options);
+ }
+
+ if (!options['force new connection'] && socket) {
+ io.sockets[uuri] = socket;
+ }
+
+ socket = socket || io.sockets[uuri];
+
+ // if path is different from '' or /
+ return socket.of(uri.path.length > 1 ? uri.path : '');
+ };
+
+})('object' === typeof module ? module.exports : (window.io = {}));
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports) {
+
+ /**
+ * Utilities namespace.
+ *
+ * @namespace
+ */
+
+ var util = exports.util = {};
+
+ /**
+ * Parses an URI
+ *
+ * @author Steven Levithan <stevenlevithan.com> (MIT license)
+ * @api public
+ */
+
+ var re = /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
+
+ var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password',
+ 'host', 'port', 'relative', 'path', 'directory', 'file', 'query',
+ 'anchor'];
+
+ util.parseUri = function (str) {
+ var m = re.exec(str || '')
+ , uri = {}
+ , i = 14;
+
+ while (i--) {
+ uri[parts[i]] = m[i] || '';
+ }
+
+ return uri;
+ };
+
+ /**
+ * Produces a unique url that identifies a Socket.IO connection.
+ *
+ * @param {Object} uri
+ * @api public
+ */
+
+ util.uniqueUri = function (uri) {
+ var protocol = uri.protocol
+ , host = uri.host
+ , port = uri.port;
+
+ if ('undefined' != typeof document) {
+ host = host || document.domain;
+ port = port || (protocol == 'https'
+ && document.location.protocol !== 'https:' ? 443 : document.location.port);
+ } else {
+ host = host || 'localhost';
+
+ if (!port && protocol == 'https') {
+ port = 443;
+ }
+ }
+
+ return (protocol || 'http') + '://' + host + ':' + (port || 80);
+ };
+
+ /**
+ * Executes the given function when the page is loaded.
+ *
+ * io.util.load(function () { console.log('page loaded'); });
+ *
+ * @param {Function} fn
+ * @api public
+ */
+
+ var pageLoaded = false;
+
+ util.load = function (fn) {
+ if (document.readyState === 'complete' || pageLoaded) {
+ return fn();
+ }
+
+ util.on(window, 'load', fn, false);
+ };
+
+ /**
+ * Adds an event.
+ *
+ * @api private
+ */
+
+ util.on = function (element, event, fn, capture) {
+ if (element.attachEvent) {
+ element.attachEvent('on' + event, fn);
+ } else {
+ element.addEventListener(event, fn, capture);
+ }
+ };
+
+ /**
+ * Generates the correct `XMLHttpRequest` for regular and cross domain requests.
+ *
+ * @param {Boolean} [xdomain] Create a request that can be used cross domain.
+ * @returns {XMLHttpRequest|false} If we can create a XMLHttpRequest.
+ * @api private
+ */
+
+ util.request = function (xdomain) {
+ if ('undefined' != typeof window) {
+ if (xdomain && window.XDomainRequest) {
+ return new XDomainRequest();
+ };
+
+ if (window.XMLHttpRequest && (!xdomain || util.ua.hasCORS)) {
+ return new XMLHttpRequest();
+ };
+
+ if (!xdomain) {
+ try {
+ return new window.ActiveXObject('Microsoft.XMLHTTP');
+ } catch(e) { }
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * XHR based transport constructor.
+ *
+ * @constructor
+ * @api public
+ */
+
+ /**
+ * Change the internal pageLoaded value.
+ */
+
+ if ('undefined' != typeof window) {
+ util.load(function () {
+ pageLoaded = true;
+ });
+ }
+
+ /**
+ * Defers a function to ensure a spinner is not displayed by the browser
+ *
+ * @param {Function} fn
+ * @api public
+ */
+
+ util.defer = function (fn) {
+ if (!util.ua.webkit) {
+ return fn();
+ }
+
+ util.load(function () {
+ setTimeout(fn, 100);
+ });
+ };
+
+ /**
+ * Merges two objects.
+ *
+ * @api public
+ */
+
+ util.merge = function merge (target, additional, deep, lastseen) {
+ var seen = lastseen || []
+ , depth = typeof deep == 'undefined' ? 2 : deep
+ , prop;
+
+ for (prop in additional) {
+ if (additional.hasOwnProperty(prop) && util.indexOf(seen, prop) < 0) {
+ if (typeof target[prop] !== 'object' || !depth) {
+ target[prop] = additional[prop];
+ seen.push(additional[prop]);
+ } else {
+ util.merge(target[prop], additional[prop], depth - 1, seen);
+ }
+ }
+ }
+
+ return target;
+ };
+
+ /**
+ * Merges prototypes from objects
+ *
+ * @api public
+ */
+
+ util.mixin = function (ctor, ctor2) {
+ util.merge(ctor.prototype, ctor2.prototype);
+ };
+
+ /**
+ * Shortcut for prototypical and static inheritance.
+ *
+ * @api private
+ */
+
+ util.inherit = function (ctor, ctor2) {
+ ctor.prototype = new ctor2;
+ util.merge(ctor, ctor2);
+ };
+
+ /**
+ * Checks if the given object is an Array.
+ *
+ * io.util.isArray([]); // true
+ * io.util.isArray({}); // false
+ *
+ * @param Object obj
+ * @api public
+ */
+
+ util.isArray = Array.isArray || function (obj) {
+ return Object.prototype.toString.call(obj) === '[object Array]';
+ };
+
+ /**
+ * Intersects values of two arrays into a third
+ *
+ * @api public
+ */
+
+ util.intersect = function (arr, arr2) {
+ var ret = []
+ , longest = arr.length > arr2.length ? arr : arr2
+ , shortest = arr.length > arr2.length ? arr2 : arr
+
+ for (var i = 0, l = shortest.length; i < l; i++) {
+ if (~util.indexOf(longest, shortest[i]))
+ ret.push(shortest[i]);
+ }
+
+ return ret;
+ }
+
+ /**
+ * Array indexOf compatibility.
+ *
+ * @see bit.ly/a5Dxa2
+ * @api public
+ */
+
+ util.indexOf = function (arr, o, i) {
+ if (Array.prototype.indexOf) {
+ return Array.prototype.indexOf.call(arr, o, i);
+ }
+
+ for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0
+ ; i < j && arr[i] !== o; i++);
+
+ return j <= i ? -1 : i;
+ };
+
+ /**
+ * Converts enumerables to array.
+ *
+ * @api public
+ */
+
+ util.toArray = function (enu) {
+ var arr = [];
+
+ for (var i = 0, l = enu.length; i < l; i++)
+ arr.push(enu[i]);
+
+ return arr;
+ };
+
+ /**
+ * UA / engines detection namespace.
+ *
+ * @namespace
+ */
+
+ util.ua = {};
+
+ /**
+ * Whether the UA supports CORS for XHR.
+ *
+ * @api public
+ */
+
+ util.ua.hasCORS = 'undefined' != typeof window && window.XMLHttpRequest &&
+ (function () {
+ try {
+ var a = new XMLHttpRequest();
+ } catch (e) {
+ return false;
+ }
+
+ return a.withCredentials != undefined;
+ })();
+
+ /**
+ * Detect webkit.
+ *
+ * @api public
+ */
+
+ util.ua.webkit = 'undefined' != typeof navigator
+ && /webkit/i.test(navigator.userAgent);
+
+})('undefined' != typeof window ? io : module.exports);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports.EventEmitter = EventEmitter;
+
+ /**
+ * Event emitter constructor.
+ *
+ * @api public.
+ */
+
+ function EventEmitter () {};
+
+ /**
+ * Adds a listener
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.on = function (name, fn) {
+ if (!this.$events) {
+ this.$events = {};
+ }
+
+ if (!this.$events[name]) {
+ this.$events[name] = fn;
+ } else if (io.util.isArray(this.$events[name])) {
+ this.$events[name].push(fn);
+ } else {
+ this.$events[name] = [this.$events[name], fn];
+ }
+
+ return this;
+ };
+
+ EventEmitter.prototype.addListener = EventEmitter.prototype.on;
+
+ /**
+ * Adds a volatile listener.
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.once = function (name, fn) {
+ var self = this;
+
+ function on () {
+ self.removeListener(name, on);
+ fn.apply(this, arguments);
+ };
+
+ on.listener = fn;
+ this.on(name, on);
+
+ return this;
+ };
+
+ /**
+ * Removes a listener.
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.removeListener = function (name, fn) {
+ if (this.$events && this.$events[name]) {
+ var list = this.$events[name];
+
+ if (io.util.isArray(list)) {
+ var pos = -1;
+
+ for (var i = 0, l = list.length; i < l; i++) {
+ if (list[i] === fn || (list[i].listener && list[i].listener === fn)) {
+ pos = i;
+ break;
+ }
+ }
+
+ if (pos < 0) {
+ return this;
+ }
+
+ list.splice(pos, 1);
+
+ if (!list.length) {
+ delete this.$events[name];
+ }
+ } else if (list === fn || (list.listener && list.listener === fn)) {
+ delete this.$events[name];
+ }
+ }
+
+ return this;
+ };
+
+ /**
+ * Removes all listeners for an event.
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.removeAllListeners = function (name) {
+ // TODO: enable this when node 0.5 is stable
+ //if (name === undefined) {
+ //this.$events = {};
+ //return this;
+ //}
+
+ if (this.$events && this.$events[name]) {
+ this.$events[name] = null;
+ }
+
+ return this;
+ };
+
+ /**
+ * Gets all listeners for a certain event.
+ *
+ * @api publci
+ */
+
+ EventEmitter.prototype.listeners = function (name) {
+ if (!this.$events) {
+ this.$events = {};
+ }
+
+ if (!this.$events[name]) {
+ this.$events[name] = [];
+ }
+
+ if (!io.util.isArray(this.$events[name])) {
+ this.$events[name] = [this.$events[name]];
+ }
+
+ return this.$events[name];
+ };
+
+ /**
+ * Emits an event.
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.emit = function (name) {
+ if (!this.$events) {
+ return false;
+ }
+
+ var handler = this.$events[name];
+
+ if (!handler) {
+ return false;
+ }
+
+ var args = Array.prototype.slice.call(arguments, 1);
+
+ if ('function' == typeof handler) {
+ handler.apply(this, args);
+ } else if (io.util.isArray(handler)) {
+ var listeners = handler.slice();
+
+ for (var i = 0, l = listeners.length; i < l; i++) {
+ listeners[i].apply(this, args);
+ }
+ } else {
+ return false;
+ }
+
+ return true;
+ };
+
+})(
+ 'undefined' != typeof io ? io : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+/**
+ * Based on JSON2 (http://www.JSON.org/js.html).
+ */
+
+(function (exports, nativeJSON) {
+ "use strict";
+
+ // use native JSON if it's available
+ if (nativeJSON && nativeJSON.parse){
+ return exports.JSON = {
+ parse: nativeJSON.parse
+ , stringify: nativeJSON.stringify
+ }
+ }
+
+ var JSON = exports.JSON = {};
+
+ function f(n) {
+ // Format integers to have at least two digits.
+ return n < 10 ? '0' + n : n;
+ }
+
+ function date(d, key) {
+ return isFinite(d.valueOf()) ?
+ d.getUTCFullYear() + '-' +
+ f(d.getUTCMonth() + 1) + '-' +
+ f(d.getUTCDate()) + 'T' +
+ f(d.getUTCHours()) + ':' +
+ f(d.getUTCMinutes()) + ':' +
+ f(d.getUTCSeconds()) + 'Z' : null;
+ };
+
+ var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+ escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+ gap,
+ indent,
+ meta = { // table of character substitutions
+ '\b': '\\b',
+ '\t': '\\t',
+ '\n': '\\n',
+ '\f': '\\f',
+ '\r': '\\r',
+ '"' : '\\"',
+ '\\': '\\\\'
+ },
+ rep;
+
+
+ function quote(string) {
+
+// If the string contains no control characters, no quote characters, and no
+// backslash characters, then we can safely slap some quotes around it.
+// Otherwise we must also replace the offending characters with safe escape
+// sequences.
+
+ escapable.lastIndex = 0;
+ return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
+ var c = meta[a];
+ return typeof c === 'string' ? c :
+ '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
+ }) + '"' : '"' + string + '"';
+ }
+
+
+ function str(key, holder) {
+
+// Produce a string from holder[key].
+
+ var i, // The loop counter.
+ k, // The member key.
+ v, // The member value.
+ length,
+ mind = gap,
+ partial,
+ value = holder[key];
+
+// If the value has a toJSON method, call it to obtain a replacement value.
+
+ if (value instanceof Date) {
+ value = date(key);
+ }
+
+// If we were called with a replacer function, then call the replacer to
+// obtain a replacement value.
+
+ if (typeof rep === 'function') {
+ value = rep.call(holder, key, value);
+ }
+
+// What happens next depends on the value's type.
+
+ switch (typeof value) {
+ case 'string':
+ return quote(value);
+
+ case 'number':
+
+// JSON numbers must be finite. Encode non-finite numbers as null.
+
+ return isFinite(value) ? String(value) : 'null';
+
+ case 'boolean':
+ case 'null':
+
+// If the value is a boolean or null, convert it to a string. Note:
+// typeof null does not produce 'null'. The case is included here in
+// the remote chance that this gets fixed someday.
+
+ return String(value);
+
+// If the type is 'object', we might be dealing with an object or an array or
+// null.
+
+ case 'object':
+
+// Due to a specification blunder in ECMAScript, typeof null is 'object',
+// so watch out for that case.
+
+ if (!value) {
+ return 'null';
+ }
+
+// Make an array to hold the partial results of stringifying this object value.
+
+ gap += indent;
+ partial = [];
+
+// Is the value an array?
+
+ if (Object.prototype.toString.apply(value) === '[object Array]') {
+
+// The value is an array. Stringify every element. Use null as a placeholder
+// for non-JSON values.
+
+ length = value.length;
+ for (i = 0; i < length; i += 1) {
+ partial[i] = str(i, value) || 'null';
+ }
+
+// Join all of the elements together, separated with commas, and wrap them in
+// brackets.
+
+ v = partial.length === 0 ? '[]' : gap ?
+ '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
+ '[' + partial.join(',') + ']';
+ gap = mind;
+ return v;
+ }
+
+// If the replacer is an array, use it to select the members to be stringified.
+
+ if (rep && typeof rep === 'object') {
+ length = rep.length;
+ for (i = 0; i < length; i += 1) {
+ if (typeof rep[i] === 'string') {
+ k = rep[i];
+ v = str(k, value);
+ if (v) {
+ partial.push(quote(k) + (gap ? ': ' : ':') + v);
+ }
+ }
+ }
+ } else {
+
+// Otherwise, iterate through all of the keys in the object.
+
+ for (k in value) {
+ if (Object.prototype.hasOwnProperty.call(value, k)) {
+ v = str(k, value);
+ if (v) {
+ partial.push(quote(k) + (gap ? ': ' : ':') + v);
+ }
+ }
+ }
+ }
+
+// Join all of the member texts together, separated with commas,
+// and wrap them in braces.
+
+ v = partial.length === 0 ? '{}' : gap ?
+ '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
+ '{' + partial.join(',') + '}';
+ gap = mind;
+ return v;
+ }
+ }
+
+// If the JSON object does not yet have a stringify method, give it one.
+
+ JSON.stringify = function (value, replacer, space) {
+
+// The stringify method takes a value and an optional replacer, and an optional
+// space parameter, and returns a JSON text. The replacer can be a function
+// that can replace values, or an array of strings that will select the keys.
+// A default replacer method can be provided. Use of the space parameter can
+// produce text that is more easily readable.
+
+ var i;
+ gap = '';
+ indent = '';
+
+// If the space parameter is a number, make an indent string containing that
+// many spaces.
+
+ if (typeof space === 'number') {
+ for (i = 0; i < space; i += 1) {
+ indent += ' ';
+ }
+
+// If the space parameter is a string, it will be used as the indent string.
+
+ } else if (typeof space === 'string') {
+ indent = space;
+ }
+
+// If there is a replacer, it must be a function or an array.
+// Otherwise, throw an error.
+
+ rep = replacer;
+ if (replacer && typeof replacer !== 'function' &&
+ (typeof replacer !== 'object' ||
+ typeof replacer.length !== 'number')) {
+ throw new Error('JSON.stringify');
+ }
+
+// Make a fake root object containing our value under the key of ''.
+// Return the result of stringifying the value.
+
+ return str('', {'': value});
+ };
+
+// If the JSON object does not yet have a parse method, give it one.
+
+ JSON.parse = function (text, reviver) {
+ // The parse method takes a text and an optional reviver function, and returns
+ // a JavaScript value if the text is a valid JSON text.
+
+ var j;
+
+ function walk(holder, key) {
+
+ // The walk method is used to recursively walk the resulting structure so
+ // that modifications can be made.
+
+ var k, v, value = holder[key];
+ if (value && typeof value === 'object') {
+ for (k in value) {
+ if (Object.prototype.hasOwnProperty.call(value, k)) {
+ v = walk(value, k);
+ if (v !== undefined) {
+ value[k] = v;
+ } else {
+ delete value[k];
+ }
+ }
+ }
+ }
+ return reviver.call(holder, key, value);
+ }
+
+
+ // Parsing happens in four stages. In the first stage, we replace certain
+ // Unicode characters with escape sequences. JavaScript handles many characters
+ // incorrectly, either silently deleting them, or treating them as line endings.
+
+ text = String(text);
+ cx.lastIndex = 0;
+ if (cx.test(text)) {
+ text = text.replace(cx, function (a) {
+ return '\\u' +
+ ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
+ });
+ }
+
+ // In the second stage, we run the text against regular expressions that look
+ // for non-JSON patterns. We are especially concerned with '()' and 'new'
+ // because they can cause invocation, and '=' because it can cause mutation.
+ // But just to be safe, we want to reject all unexpected forms.
+
+ // We split the second stage into 4 regexp operations in order to work around
+ // crippling inefficiencies in IE's and Safari's regexp engines. First we
+ // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
+ // replace all simple value tokens with ']' characters. Third, we delete all
+ // open brackets that follow a colon or comma or that begin the text. Finally,
+ // we look to see that the remaining characters are only whitespace or ']' or
+ // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
+
+ if (/^[\],:{}\s]*$/
+ .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
+ .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
+ .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
+
+ // In the third stage we use the eval function to compile the text into a
+ // JavaScript structure. The '{' operator is subject to a syntactic ambiguity
+ // in JavaScript: it can begin a block or an object literal. We wrap the text
+ // in parens to eliminate the ambiguity.
+
+ j = eval('(' + text + ')');
+
+ // In the optional fourth stage, we recursively walk the new structure, passing
+ // each name/value pair to a reviver function for possible transformation.
+
+ return typeof reviver === 'function' ?
+ walk({'': j}, '') : j;
+ }
+
+ // If the text is not JSON parseable, then a SyntaxError is thrown.
+
+ throw new SyntaxError('JSON.parse');
+ };
+
+})(
+ 'undefined' != typeof io ? io : module.exports
+ , typeof JSON !== 'undefined' ? JSON : undefined
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Parser namespace.
+ *
+ * @namespace
+ */
+
+ var parser = exports.parser = {};
+
+ /**
+ * Packet types.
+ */
+
+ var packets = parser.packets = [
+ 'disconnect'
+ , 'connect'
+ , 'heartbeat'
+ , 'message'
+ , 'json'
+ , 'event'
+ , 'ack'
+ , 'error'
+ , 'noop'
+ ];
+
+ /**
+ * Errors reasons.
+ */
+
+ var reasons = parser.reasons = [
+ 'transport not supported'
+ , 'client not handshaken'
+ , 'unauthorized'
+ ];
+
+ /**
+ * Errors advice.
+ */
+
+ var advice = parser.advice = [
+ 'reconnect'
+ ];
+
+ /**
+ * Shortcuts.
+ */
+
+ var JSON = io.JSON
+ , indexOf = io.util.indexOf;
+
+ /**
+ * Encodes a packet.
+ *
+ * @api private
+ */
+
+ parser.encodePacket = function (packet) {
+ var type = indexOf(packets, packet.type)
+ , id = packet.id || ''
+ , endpoint = packet.endpoint || ''
+ , ack = packet.ack
+ , data = null;
+
+ switch (packet.type) {
+ case 'error':
+ var reason = packet.reason ? indexOf(reasons, packet.reason) : ''
+ , adv = packet.advice ? indexOf(advice, packet.advice) : ''
+
+ if (reason !== '' || adv !== '')
+ data = reason + (adv !== '' ? ('+' + adv) : '')
+
+ break;
+
+ case 'message':
+ if (packet.data !== '')
+ data = packet.data;
+ break;
+
+ case 'event':
+ var ev = { name: packet.name };
+
+ if (packet.args && packet.args.length) {
+ ev.args = packet.args;
+ }
+
+ data = JSON.stringify(ev);
+ break;
+
+ case 'json':
+ data = JSON.stringify(packet.data);
+ break;
+
+ case 'connect':
+ if (packet.qs)
+ data = packet.qs;
+ break;
+
+ case 'ack':
+ data = packet.ackId
+ + (packet.args && packet.args.length
+ ? '+' + JSON.stringify(packet.args) : '');
+ break;
+ }
+
+ // construct packet with required fragments
+ var encoded = [
+ type
+ , id + (ack == 'data' ? '+' : '')
+ , endpoint
+ ];
+
+ // data fragment is optional
+ if (data !== null && data !== undefined)
+ encoded.push(data);
+
+ return encoded.join(':');
+ };
+
+ /**
+ * Encodes multiple messages (payload).
+ *
+ * @param {Array} messages
+ * @api private
+ */
+
+ parser.encodePayload = function (packets) {
+ var decoded = '';
+
+ if (packets.length == 1)
+ return packets[0];
+
+ for (var i = 0, l = packets.length; i < l; i++) {
+ var packet = packets[i];
+ decoded += '\ufffd' + packet.length + '\ufffd' + packets[i]
+ }
+
+ return decoded;
+ };
+
+ /**
+ * Decodes a packet
+ *
+ * @api private
+ */
+
+ var regexp = /^([^:]+):([0-9]+)?(\+)?:([^:]+)?:?(.*)?$/;
+
+ parser.decodePacket = function (data) {
+ var pieces = data.match(regexp);
+
+ if (!pieces) return {};
+
+ var id = pieces[2] || ''
+ , data = pieces[5] || ''
+ , packet = {
+ type: packets[pieces[1]]
+ , endpoint: pieces[4] || ''
+ };
+
+ // whether we need to acknowledge the packet
+ if (id) {
+ packet.id = id;
+ if (pieces[3])
+ packet.ack = 'data';
+ else
+ packet.ack = true;
+ }
+
+ // handle different packet types
+ switch (packet.type) {
+ case 'error':
+ var pieces = data.split('+');
+ packet.reason = reasons[pieces[0]] || '';
+ packet.advice = advice[pieces[1]] || '';
+ break;
+
+ case 'message':
+ packet.data = data || '';
+ break;
+
+ case 'event':
+ try {
+ var opts = JSON.parse(data);
+ packet.name = opts.name;
+ packet.args = opts.args;
+ } catch (e) { }
+
+ packet.args = packet.args || [];
+ break;
+
+ case 'json':
+ try {
+ packet.data = JSON.parse(data);
+ } catch (e) { }
+ break;
+
+ case 'connect':
+ packet.qs = data || '';
+ break;
+
+ case 'ack':
+ var pieces = data.match(/^([0-9]+)(\+)?(.*)/);
+ if (pieces) {
+ packet.ackId = pieces[1];
+ packet.args = [];
+
+ if (pieces[3]) {
+ try {
+ packet.args = pieces[3] ? JSON.parse(pieces[3]) : [];
+ } catch (e) { }
+ }
+ }
+ break;
+
+ case 'disconnect':
+ case 'heartbeat':
+ break;
+ };
+
+ return packet;
+ };
+
+ /**
+ * Decodes data payload. Detects multiple messages
+ *
+ * @return {Array} messages
+ * @api public
+ */
+
+ parser.decodePayload = function (data) {
+ // IE doesn't like data[i] for unicode chars, charAt works fine
+ if (data.charAt(0) == '\ufffd') {
+ var ret = [];
+
+ for (var i = 1, length = ''; i < data.length; i++) {
+ if (data.charAt(i) == '\ufffd') {
+ ret.push(parser.decodePacket(data.substr(i + 1).substr(0, length)));
+ i += Number(length) + 1;
+ length = '';
+ } else {
+ length += data.charAt(i);
+ }
+ }
+
+ return ret;
+ } else {
+ return [parser.decodePacket(data)];
+ }
+ };
+
+})(
+ 'undefined' != typeof io ? io : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports.Transport = Transport;
+
+ /**
+ * This is the transport template for all supported transport methods.
+ *
+ * @constructor
+ * @api public
+ */
+
+ function Transport (socket, sessid) {
+ this.socket = socket;
+ this.sessid = sessid;
+ };
+
+ /**
+ * Apply EventEmitter mixin.
+ */
+
+ io.util.mixin(Transport, io.EventEmitter);
+
+ /**
+ * Handles the response from the server. When a new response is received
+ * it will automatically update the timeout, decode the message and
+ * forwards the response to the onMessage function for further processing.
+ *
+ * @param {String} data Response from the server.
+ * @api private
+ */
+
+ Transport.prototype.onData = function (data) {
+ this.clearCloseTimeout();
+ this.setCloseTimeout();
+
+ if (data !== '') {
+ // todo: we should only do decodePayload for xhr transports
+ var msgs = io.parser.decodePayload(data);
+
+ if (msgs && msgs.length) {
+ for (var i = 0, l = msgs.length; i < l; i++) {
+ this.onPacket(msgs[i]);
+ }
+ }
+ }
+
+ return this;
+ };
+
+ /**
+ * Handles packets.
+ *
+ * @api private
+ */
+
+ Transport.prototype.onPacket = function (packet) {
+ if (packet.type == 'heartbeat') {
+ return this.onHeartbeat();
+ }
+
+ if (packet.type == 'connect' && packet.endpoint == '') {
+ this.onConnect();
+ }
+
+ this.socket.onPacket(packet);
+
+ return this;
+ };
+
+ /**
+ * Sets close timeout
+ *
+ * @api private
+ */
+
+ Transport.prototype.setCloseTimeout = function () {
+ if (!this.closeTimeout) {
+ var self = this;
+
+ this.closeTimeout = setTimeout(function () {
+ self.onDisconnect();
+ }, this.socket.closeTimeout);
+ }
+ };
+
+ /**
+ * Called when transport disconnects.
+ *
+ * @api private
+ */
+
+ Transport.prototype.onDisconnect = function () {
+ if (this.close) this.close();
+ this.clearTimeouts();
+ this.socket.onDisconnect();
+ return this;
+ };
+
+ /**
+ * Called when transport connects
+ *
+ * @api private
+ */
+
+ Transport.prototype.onConnect = function () {
+ this.socket.onConnect();
+ return this;
+ }
+
+ /**
+ * Clears close timeout
+ *
+ * @api private
+ */
+
+ Transport.prototype.clearCloseTimeout = function () {
+ if (this.closeTimeout) {
+ clearTimeout(this.closeTimeout);
+ this.closeTimeout = null;
+ }
+ };
+
+ /**
+ * Clear timeouts
+ *
+ * @api private
+ */
+
+ Transport.prototype.clearTimeouts = function () {
+ this.clearCloseTimeout();
+
+ if (this.reopenTimeout) {
+ clearTimeout(this.reopenTimeout);
+ }
+ };
+
+ /**
+ * Sends a packet
+ *
+ * @param {Object} packet object.
+ * @api private
+ */
+
+ Transport.prototype.packet = function (packet) {
+ this.send(io.parser.encodePacket(packet));
+ };
+
+ /**
+ * Send the received heartbeat message back to server. So the server
+ * knows we are still connected.
+ *
+ * @param {String} heartbeat Heartbeat response from the server.
+ * @api private
+ */
+
+ Transport.prototype.onHeartbeat = function (heartbeat) {
+ this.packet({ type: 'heartbeat' });
+ };
+
+ /**
+ * Called when the transport opens.
+ *
+ * @api private
+ */
+
+ Transport.prototype.onOpen = function () {
+ this.open = true;
+ this.clearCloseTimeout();
+ this.socket.onOpen();
+ };
+
+ /**
+ * Notifies the base when the connection with the Socket.IO server
+ * has been disconnected.
+ *
+ * @api private
+ */
+
+ Transport.prototype.onClose = function () {
+ var self = this;
+
+ /* FIXME: reopen delay causing a infinit loop
+ this.reopenTimeout = setTimeout(function () {
+ self.open();
+ }, this.socket.options['reopen delay']);*/
+
+ this.open = false;
+ this.setCloseTimeout();
+ this.socket.onClose();
+ };
+
+ /**
+ * Generates a connection url based on the Socket.IO URL Protocol.
+ * See <https://github.com/learnboost/socket.io-node/> for more details.
+ *
+ * @returns {String} Connection url
+ * @api private
+ */
+
+ Transport.prototype.prepareUrl = function () {
+ var options = this.socket.options;
+
+ return this.scheme() + '://'
+ + options.host + ':' + options.port + '/'
+ + options.resource + '/' + io.protocol
+ + '/' + this.name + '/' + this.sessid;
+ };
+})(
+ 'undefined' != typeof io ? io : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports.Socket = Socket;
+
+ /**
+ * Create a new `Socket.IO client` which can establish a persisent
+ * connection with a Socket.IO enabled server.
+ *
+ * @api public
+ */
+
+ function Socket (options) {
+ this.options = {
+ port: 80
+ , secure: false
+ , document: document
+ , resource: 'socket.io'
+ , transports: io.transports
+ , 'connect timeout': 10000
+ , 'try multiple transports': true
+ , 'reconnect': true
+ , 'reconnection delay': 500
+ , 'reopen delay': 3000
+ , 'max reconnection attempts': 10
+ , 'sync disconnect on unload': true
+ , 'auto connect': true
+ };
+
+ io.util.merge(this.options, options);
+
+ this.connected = false;
+ this.open = false;
+ this.connecting = false;
+ this.reconnecting = false;
+ this.namespaces = {};
+ this.buffer = [];
+ this.doBuffer = false;
+
+ if (this.options['sync disconnect on unload'] &&
+ (!this.isXDomain() || io.util.ua.hasCORS)) {
+ var self = this;
+
+ io.util.on(window, 'beforeunload', function () {
+ self.disconnectSync();
+ }, false);
+ }
+
+ if (this.options['auto connect']) {
+ this.connect();
+ }
+};
+
+ /**
+ * Apply EventEmitter mixin.
+ */
+
+ io.util.mixin(Socket, io.EventEmitter);
+
+ /**
+ * Returns a namespace listener/emitter for this socket
+ *
+ * @api public
+ */
+
+ Socket.prototype.of = function (name) {
+ if (!this.namespaces[name]) {
+ this.namespaces[name] = new io.SocketNamespace(this, name);
+
+ if (name !== '') {
+ this.namespaces[name].packet({ type: 'connect' });
+ }
+ }
+
+ return this.namespaces[name];
+ };
+
+ /**
+ * Emits the given event to the Socket and all namespaces
+ *
+ * @api private
+ */
+
+ Socket.prototype.publish = function () {
+ this.emit.apply(this, arguments);
+
+ var nsp;
+
+ for (var i in this.namespaces) {
+ if (this.namespaces.hasOwnProperty(i)) {
+ nsp = this.of(i);
+ nsp.$emit.apply(nsp, arguments);
+ }
+ }
+ };
+
+ /**
+ * Performs the handshake
+ *
+ * @api private
+ */
+
+ function empty () { };
+
+ Socket.prototype.handshake = function (fn) {
+ var self = this
+ , options = this.options;
+
+ function complete (data) {
+ if (data instanceof Error) {
+ self.onError(data.message);
+ } else {
+ fn.apply(null, data.split(':'));
+ }
+ };
+
+ var url = [
+ 'http' + (options.secure ? 's' : '') + ':/'
+ , options.host + ':' + options.port
+ , this.options.resource
+ , io.protocol
+ , '?t=' + + new Date
+ ].join('/');
+
+ if (this.isXDomain()) {
+ var insertAt = document.getElementsByTagName('script')[0]
+ , script = document.createElement('SCRIPT');
+
+ script.src = url + '&jsonp=' + io.j.length;
+ insertAt.parentNode.insertBefore(script, insertAt);
+
+ io.j.push(function (data) {
+ complete(data);
+ script.parentNode.removeChild(script);
+ });
+ } else {
+ var xhr = io.util.request();
+
+ xhr.open('GET', url);
+ xhr.onreadystatechange = function () {
+ if (xhr.readyState == 4) {
+ xhr.onreadystatechange = empty;
+
+ if (xhr.status == 200) {
+ complete(xhr.responseText);
+ } else {
+ !self.reconnecting && self.onError(xhr.responseText);
+ }
+ }
+ };
+ xhr.send(null);
+ }
+ };
+
+ /**
+ * Find an available transport based on the options supplied in the constructor.
+ *
+ * @api private
+ */
+
+ Socket.prototype.getTransport = function (override) {
+ var transports = override || this.transports, match;
+
+ for (var i = 0, transport; transport = transports[i]; i++) {
+ if (io.Transport[transport]
+ && io.Transport[transport].check(this)
+ && (!this.isXDomain() || io.Transport[transport].xdomainCheck())) {
+ return new io.Transport[transport](this, this.sessionid);
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Connects to the server.
+ *
+ * @param {Function} [fn] Callback.
+ * @returns {io.Socket}
+ * @api public
+ */
+
+ Socket.prototype.connect = function (fn) {
+ if (this.connecting) {
+ return this;
+ }
+
+ var self = this;
+
+ this.handshake(function (sid, heartbeat, close, transports) {
+ self.sessionid = sid;
+ self.closeTimeout = close * 1000;
+ self.heartbeatTimeout = heartbeat * 1000;
+ self.transports = io.util.intersect(
+ transports.split(',')
+ , self.options.transports
+ );
+
+ function connect (transports){
+ self.transport = self.getTransport(transports);
+ if (!self.transport) return self.publish('connect_failed');
+
+ self.connecting = true;
+ self.publish('connecting', self.transport.name);
+ self.transport.open();
+
+ if (self.options['connect timeout']) {
+ self.connectTimeoutTimer = setTimeout(function () {
+ if (!self.connected) {
+ self.connecting = false;
+
+ if (self.options['try multiple transports']) {
+ if (!self.remainingTransports) {
+ self.remainingTransports = self.transports.slice(0);
+ }
+
+ var remaining = self.remainingTransports;
+
+ while (remaining.length > 0 && remaining.splice(0,1)[0] !=
+ self.transport.name) {}
+
+ if (remaining.length){
+ connect(remaining);
+ } else {
+ self.publish('connect_failed');
+ }
+ }
+ }
+ }, self.options['connect timeout']);
+ }
+ }
+
+ connect();
+
+ self.once('connect', function (){
+ clearTimeout(self.connectTimeoutTimer);
+
+ fn && typeof fn == 'function' && fn();
+ });
+ });
+
+ return this;
+ };
+
+ /**
+ * Sends a message.
+ *
+ * @param {Object} data packet.
+ * @returns {io.Socket}
+ * @api public
+ */
+
+ Socket.prototype.packet = function (data) {
+ if (this.connected && !this.doBuffer) {
+ this.transport.packet(data);
+ } else {
+ this.buffer.push(data);
+ }
+
+ return this;
+ };
+
+ /**
+ * Sets buffer state
+ *
+ * @api private
+ */
+
+ Socket.prototype.setBuffer = function (v) {
+ this.doBuffer = v;
+
+ if (!v && this.connected && this.buffer.length) {
+ this.transport.payload(this.buffer);
+ this.buffer = [];
+ }
+ };
+
+ /**
+ * Disconnect the established connect.
+ *
+ * @returns {io.Socket}
+ * @api public
+ */
+
+ Socket.prototype.disconnect = function () {
+ if (this.connected) {
+ if (this.open) {
+ this.of('').packet({ type: 'disconnect' });
+ }
+
+ // handle disconnection immediately
+ this.onDisconnect('booted');
+ }
+
+ return this;
+ };
+
+ /**
+ * Disconnects the socket with a sync XHR.
+ *
+ * @api private
+ */
+
+ Socket.prototype.disconnectSync = function () {
+ // ensure disconnection
+ var xhr = io.util.request()
+ , uri = this.resource + '/' + io.protocol + '/' + this.sessionid;
+
+ xhr.open('GET', uri, true);
+
+ // handle disconnection immediately
+ this.onDisconnect('booted');
+ };
+
+ /**
+ * Check if we need to use cross domain enabled transports. Cross domain would
+ * be a different port or different domain name.
+ *
+ * @returns {Boolean}
+ * @api private
+ */
+
+ Socket.prototype.isXDomain = function () {
+ var locPort = window.location.port || 80;
+ return this.options.host !== document.domain || this.options.port != locPort;
+ };
+
+ /**
+ * Called upon handshake.
+ *
+ * @api private
+ */
+
+ Socket.prototype.onConnect = function () {
+ this.connected = true;
+ this.connecting = false;
+ if (!this.doBuffer) {
+ // make sure to flush the buffer
+ this.setBuffer(false);
+ }
+ this.emit('connect');
+ };
+
+ /**
+ * Called when the transport opens
+ *
+ * @api private
+ */
+
+ Socket.prototype.onOpen = function () {
+ this.open = true;
+ };
+
+ /**
+ * Called when the transport closes.
+ *
+ * @api private
+ */
+
+ Socket.prototype.onClose = function () {
+ this.open = false;
+ };
+
+ /**
+ * Called when the transport first opens a connection
+ *
+ * @param text
+ */
+
+ Socket.prototype.onPacket = function (packet) {
+ this.of(packet.endpoint).onPacket(packet);
+ };
+
+ /**
+ * Handles an error.
+ *
+ * @api private
+ */
+
+ Socket.prototype.onError = function (err) {
+ if (err && err.advice) {
+ if (err.advice === 'reconnect' && this.connected) {
+ this.disconnect();
+ this.reconnect();
+ }
+ }
+
+ this.publish('error', err && err.reason ? err.reason : err);
+ };
+
+ /**
+ * Called when the transport disconnects.
+ *
+ * @api private
+ */
+
+ Socket.prototype.onDisconnect = function (reason) {
+ var wasConnected = this.connected;
+
+ this.connected = false;
+ this.connecting = false;
+ this.open = false;
+
+ if (wasConnected) {
+ this.transport.close();
+ this.transport.clearTimeouts();
+ this.publish('disconnect', reason);
+
+ if ('booted' != reason && this.options.reconnect && !this.reconnecting) {
+ this.reconnect();
+ }
+ }
+ };
+
+ /**
+ * Called upon reconnection.
+ *
+ * @api private
+ */
+
+ Socket.prototype.reconnect = function () {
+ this.reconnecting = true;
+ this.reconnectionAttempts = 0;
+ this.reconnectionDelay = this.options['reconnection delay'];
+
+ var self = this
+ , maxAttempts = this.options['max reconnection attempts']
+ , tryMultiple = this.options['try multiple transports']
+
+ function reset () {
+ if (self.connected) {
+ self.publish('reconnect', self.transport.name, self.reconnectionAttempts);
+ }
+
+ self.removeListener('connect_failed', maybeReconnect);
+ self.removeListener('connect', maybeReconnect);
+
+ self.reconnecting = false;
+
+ delete self.reconnectionAttempts;
+ delete self.reconnectionDelay;
+ delete self.reconnectionTimer;
+ delete self.redoTransports;
+
+ self.options['try multiple transports'] = tryMultiple;
+ };
+
+ function maybeReconnect () {
+ if (!self.reconnecting) {
+ return;
+ }
+
+ if (self.connected) {
+ return reset();
+ };
+
+ if (self.connecting && self.reconnecting) {
+ return self.reconnectionTimer = setTimeout(maybeReconnect, 1000);
+ }
+
+ if (self.reconnectionAttempts++ >= maxAttempts) {
+ if (!self.redoTransports) {
+ self.on('connect_failed', maybeReconnect);
+ self.options['try multiple transports'] = true;
+ self.transport = self.getTransport();
+ self.redoTransports = true;
+ self.connect();
+ } else {
+ self.publish('reconnect_failed');
+ reset();
+ }
+ } else {
+ self.reconnectionDelay *= 2; // exponential back off
+ self.connect();
+ self.publish('reconnecting', self.reconnectionDelay, self.reconnectionAttempts);
+ self.reconnectionTimer = setTimeout(maybeReconnect, self.reconnectionDelay);
+ }
+ };
+
+ this.options['try multiple transports'] = false;
+ this.reconnectionTimer = setTimeout(maybeReconnect, this.reconnectionDelay);
+
+ this.on('connect', maybeReconnect);
+ };
+
+})(
+ 'undefined' != typeof io ? io : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports.SocketNamespace = SocketNamespace;
+
+ /**
+ * Socket namespace constructor.
+ *
+ * @constructor
+ * @api public
+ */
+
+ function SocketNamespace (socket, name) {
+ this.socket = socket;
+ this.name = name || '';
+ this.flags = {};
+ this.json = new Flag(this, 'json');
+ this.ackPackets = 0;
+ this.acks = {};
+ };
+
+ /**
+ * Apply EventEmitter mixin.
+ */
+
+ io.util.mixin(SocketNamespace, io.EventEmitter);
+
+ /**
+ * Copies emit since we override it
+ *
+ * @api private
+ */
+
+ SocketNamespace.prototype.$emit = io.EventEmitter.prototype.emit;
+
+ /**
+ * Creates a new namespace, by proxying the request to the socket. This
+ * allows us to use the synax as we do on the server.
+ *
+ * @api public
+ */
+
+ SocketNamespace.prototype.of = function () {
+ return this.socket.of.apply(this.socket, arguments);
+ };
+
+ /**
+ * Sends a packet.
+ *
+ * @api private
+ */
+
+ SocketNamespace.prototype.packet = function (packet) {
+ packet.endpoint = this.name;
+ this.socket.packet(packet);
+ this.flags = {};
+ return this;
+ };
+
+ /**
+ * Sends a message
+ *
+ * @api public
+ */
+
+ SocketNamespace.prototype.send = function (data, fn) {
+ var packet = {
+ type: this.flags.json ? 'json' : 'message'
+ , data: data
+ };
+
+ if ('function' == typeof fn) {
+ packet.id = ++this.ackPackets;
+ packet.ack = true;
+ this.acks[packet.id] = fn;
+ }
+
+ return this.packet(packet);
+ };
+
+ /**
+ * Emits an event
+ *
+ * @api public
+ */
+
+ SocketNamespace.prototype.emit = function (name) {
+ var args = Array.prototype.slice.call(arguments, 1)
+ , lastArg = args[args.length - 1]
+ , packet = {
+ type: 'event'
+ , name: name
+ };
+
+ if ('function' == typeof lastArg) {
+ packet.id = ++this.ackPackets;
+ packet.ack = 'data';
+ this.acks[packet.id] = lastArg;
+ args = args.slice(0, args.length - 1);
+ }
+
+ packet.args = args;
+
+ return this.packet(packet);
+ };
+
+ /**
+ * Disconnects the namespace
+ *
+ * @api private
+ */
+
+ SocketNamespace.prototype.disconnect = function () {
+ if (this.name === '') {
+ this.socket.disconnect();
+ } else {
+ this.packet({ type: 'disconnect' });
+ this.$emit('disconnect');
+ }
+
+ return this;
+ };
+
+ /**
+ * Handles a packet
+ *
+ * @api private
+ */
+
+ SocketNamespace.prototype.onPacket = function (packet) {
+ var self = this;
+
+ function ack () {
+ self.packet({
+ type: 'ack'
+ , args: io.util.toArray(arguments)
+ , ackId: packet.id
+ });
+ };
+
+ switch (packet.type) {
+ case 'connect':
+ this.$emit('connect');
+ break;
+
+ case 'disconnect':
+ if (this.name === '') {
+ this.socket.onDisconnect(packet.reason || 'booted');
+ } else {
+ this.$emit('disconnect', packet.reason);
+ }
+ break;
+
+ case 'message':
+ case 'json':
+ var params = ['message', packet.data];
+
+ if (packet.ack == 'data') {
+ params.push(ack);
+ } else if (packet.ack) {
+ this.packet({ type: 'ack', ackId: packet.id });
+ }
+
+ this.$emit.apply(this, params);
+ break;
+
+ case 'event':
+ var params = [packet.name].concat(packet.args);
+
+ if (packet.ack == 'data')
+ params.push(ack);
+
+ this.$emit.apply(this, params);
+ break;
+
+ case 'ack':
+ if (this.acks[packet.ackId]) {
+ this.acks[packet.ackId].apply(this, packet.args);
+ delete this.acks[packet.ackId];
+ }
+ break;
+
+ case 'error':
+ if (packet.advice){
+ this.socket.onError(packet);
+ } else {
+ if (packet.reason == 'unauthorized') {
+ this.$emit('connect_failed', packet.reason);
+ } else {
+ this.$emit('error', packet.reason);
+ }
+ }
+ break;
+ }
+ };
+
+ /**
+ * Flag interface.
+ *
+ * @api private
+ */
+
+ function Flag (nsp, name) {
+ this.namespace = nsp;
+ this.name = name;
+ };
+
+ /**
+ * Send a message
+ *
+ * @api public
+ */
+
+ Flag.prototype.send = function () {
+ this.namespace.flags[this.name] = true;
+ this.namespace.send.apply(this.namespace, arguments);
+ };
+
+ /**
+ * Emit an event
+ *
+ * @api public
+ */
+
+ Flag.prototype.emit = function () {
+ this.namespace.flags[this.name] = true;
+ this.namespace.emit.apply(this.namespace, arguments);
+ };
+
+})(
+ 'undefined' != typeof io ? io : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports.websocket = WS;
+
+ /**
+ * The WebSocket transport uses the HTML5 WebSocket API to establish an
+ * persistent connection with the Socket.IO server. This transport will also
+ * be inherited by the FlashSocket fallback as it provides a API compatible
+ * polyfill for the WebSockets.
+ *
+ * @constructor
+ * @extends {io.Transport}
+ * @api public
+ */
+
+ function WS (socket) {
+ io.Transport.apply(this, arguments);
+ };
+
+ /**
+ * Inherits from Transport.
+ */
+
+ io.util.inherit(WS, io.Transport);
+
+ /**
+ * Transport name
+ *
+ * @api public
+ */
+
+ WS.prototype.name = 'websocket';
+
+ /**
+ * Initializes a new `WebSocket` connection with the Socket.IO server. We attach
+ * all the appropriate listeners to handle the responses from the server.
+ *
+ * @returns {Transport}
+ * @api public
+ */
+
+ WS.prototype.open = function () {
+ this.websocket = new WebSocket(this.prepareUrl());
+
+ var self = this;
+ this.websocket.onopen = function () {
+ self.onOpen();
+ self.socket.setBuffer(false);
+ };
+ this.websocket.onmessage = function (ev) {
+ self.onData(ev.data);
+ };
+ this.websocket.onclose = function () {
+ self.onClose();
+ self.socket.setBuffer(true);
+ };
+ this.websocket.onerror = function (e) {
+ self.onError(e);
+ };
+
+ return this;
+ };
+
+ /**
+ * Send a message to the Socket.IO server. The message will automatically be
+ * encoded in the correct message format.
+ *
+ * @returns {Transport}
+ * @api public
+ */
+
+ WS.prototype.send = function (data) {
+ this.websocket.send(data);
+ return this;
+ };
+
+ /**
+ * Payload
+ *
+ * @api private
+ */
+
+ WS.prototype.payload = function (arr) {
+ for (var i = 0, l = arr.length; i < l; i++) {
+ this.packet(arr[i]);
+ }
+ return this;
+ };
+
+ /**
+ * Disconnect the established `WebSocket` connection.
+ *
+ * @returns {Transport}
+ * @api public
+ */
+
+ WS.prototype.close = function () {
+ this.websocket.close();
+ return this;
+ };
+
+ /**
+ * Handle the errors that `WebSocket` might be giving when we
+ * are attempting to connect or send messages.
+ *
+ * @param {Error} e The error.
+ * @api private
+ */
+
+ WS.prototype.onError = function (e) {
+ this.socket.onError(e);
+ };
+
+ /**
+ * Returns the appropriate scheme for the URI generation.
+ *
+ * @api private
+ */
+ WS.prototype.scheme = function () {
+ return this.socket.options.secure ? 'wss' : 'ws';
+ };
+
+ /**
+ * Checks if the browser has support for native `WebSockets` and that
+ * it's not the polyfill created for the FlashSocket transport.
+ *
+ * @return {Boolean}
+ * @api public
+ */
+
+ WS.check = function () {
+ return 'WebSocket' in window && !('__addTask' in WebSocket);
+ };
+
+ /**
+ * Check if the `WebSocket` transport support cross domain communications.
+ *
+ * @returns {Boolean}
+ * @api public
+ */
+
+ WS.xdomainCheck = function () {
+ return true;
+ };
+
+ /**
+ * Add the transport to your public io.transports array.
+ *
+ * @api private
+ */
+
+ io.transports.push('websocket');
+
+})(
+ 'undefined' != typeof io ? io.Transport : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports.flashsocket = Flashsocket;
+
+ /**
+ * The Flashsocket transport. This is a API wrapper for the HTML5 WebSocket
+ * specification. It uses a .swf file to communicate with the server. If you want
+ * to serve the .swf file from a other server than where the Socket.IO script is
+ * coming from you need to use the insecure version of the .swf. More information
+ * about this can be found on the github page.
+ *
+ * @constructor
+ * @extends {io.Transport.websocket}
+ * @api public
+ */
+
+ function Flashsocket () {
+ io.Transport.websocket.apply(this, arguments);
+ };
+
+ /**
+ * Inherits from Transport.
+ */
+
+ io.util.inherit(Flashsocket, io.Transport.websocket);
+
+ /**
+ * Transport name
+ *
+ * @api public
+ */
+
+ Flashsocket.prototype.name = 'flashsocket';
+
+ /**
+ *Disconnect the established `Flashsocket` connection. This is done by adding a
+ * new task to the Flashsocket. The rest will be handled off by the `WebSocket`
+ * transport.
+ *
+ * @returns {Transport}
+ * @api public
+ */
+
+ Flashsocket.prototype.open = function () {
+ var self = this, args = arguments;
+ WebSocket.__addTask(function () {
+ io.Transport.websocket.prototype.open.apply(self, args);
+ });
+ return this;
+ };
+
+ /**
+ * Sends a message to the Socket.IO server. This is done by adding a new
+ * task to the Flashsocket. The rest will be handled off by the `WebSocket`
+ * transport.
+ *
+ * @returns {Transport}
+ * @api public
+ */
+
+ Flashsocket.prototype.send = function () {
+ var self = this, args = arguments;
+ WebSocket.__addTask(function () {
+ io.Transport.websocket.prototype.send.apply(self, args);
+ });
+ return this;
+ };
+
+ /**
+ * Disconnects the established `Flashsocket` connection.
+ *
+ * @returns {Transport}
+ * @api public
+ */
+
+ Flashsocket.prototype.close = function () {
+ WebSocket.__tasks.length = 0;
+ io.Transport.websocket.prototype.close.call(this);
+ return this;
+ };
+
+ /**
+ * Check if the Flashsocket transport is supported as it requires that the Adobe
+ * Flash Player plugin version `10.0.0` or greater is installed. And also check if
+ * the polyfill is correctly loaded.
+ *
+ * @returns {Boolean}
+ * @api public
+ */
+
+ Flashsocket.check = function (socket) {
+ if (
+ typeof WebSocket == 'undefined'
+ || !('__initialize' in WebSocket) || !swfobject
+ ) return false;
+
+ var supported = swfobject.getFlashPlayerVersion().major >= 10
+ , options = socket.options
+ , path = [
+ 'http' + (options.secure ? 's' : '') + ':/'
+ , options.host + ':' + options.port
+ , options.resource
+ , 'static/flashsocket'
+ , 'WebSocketMain' + (socket.isXDomain() ? 'Insecure' : '') + '.swf'
+ ];
+
+ // Only start downloading the swf file when the checked that this browser
+ // actually supports it
+ if (supported && !Flashsocket.loaded) {
+ if (typeof WEB_SOCKET_SWF_LOCATION === 'undefined') {
+ // Set the correct file based on the XDomain settings
+ WEB_SOCKET_SWF_LOCATION = path.join('/');
+ }
+
+ WebSocket.__initialize();
+ Flashsocket.loaded = true;
+ }
+
+ return supported;
+ };
+
+ /**
+ * Check if the Flashsocket transport can be used as cross domain / cross origin
+ * transport. Because we can't see which type (secure or insecure) of .swf is used
+ * we will just return true.
+ *
+ * @returns {Boolean}
+ * @api public
+ */
+
+ Flashsocket.xdomainCheck = function () {
+ return true;
+ };
+
+ /**
+ * Disable AUTO_INITIALIZATION
+ */
+
+ if (typeof window != 'undefined') {
+ WEB_SOCKET_DISABLE_AUTO_INITIALIZATION = true;
+ }
+
+ /**
+ * Add the transport to your public io.transports array.
+ *
+ * @api private
+ */
+
+ io.transports.push('flashsocket');
+})(
+ 'undefined' != typeof io ? io.Transport : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+/* SWFObject v2.2 <http://code.google.com/p/swfobject/>
+ is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
+*/
+var swfobject=function(){var D="undefined",r="object",S="Shockwave Flash",W="ShockwaveFlash.ShockwaveFlash",q="application/x-shockwave-flash",R="SWFObjectExprInst",x="onreadystatechange",O=window,j=document,t=navigator,T=false,U=[h],o=[],N=[],I=[],l,Q,E,B,J=false,a=false,n,G,m=true,M=function(){var aa=typeof j.getElementById!=D&&typeof j.getElementsByTagName!=D&&typeof j.createElement!=D,ah=t.userAgent.toLowerCase(),Y=t.platform.toLowerCase(),ae=Y?/win/.test(Y):/win/.test(ah),ac=Y?/mac/.test(Y):/mac/.test(ah),af=/webkit/.test(ah)?parseFloat(ah.replace(/^.*webkit\/(\d+(\.\d+)?).*$/,"$1")):false,X=!+"\v1",ag=[0,0,0],ab=null;if(typeof t.plugins!=D&&typeof t.plugins[S]==r){ab=t.plugins[S].description;if(ab&&!(typeof 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+// License: New BSD License
+// Reference: http://dev.w3.org/html5/websockets/
+// Reference: http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol
+
+(function() {
+
+ if (window.WebSocket) return;
+
+ var console = window.console;
+ if (!console || !console.log || !console.error) {
+ console = {log: function(){ }, error: function(){ }};
+ }
+
+ if (!swfobject.hasFlashPlayerVersion("10.0.0")) {
+ console.error("Flash Player >= 10.0.0 is required.");
+ return;
+ }
+ if (location.protocol == "file:") {
+ console.error(
+ "WARNING: web-socket-js doesn't work in file:///... URL " +
+ "unless you set Flash Security Settings properly. " +
+ "Open the page via Web server i.e. http://...");
+ }
+
+ /**
+ * This class represents a faux web socket.
+ * @param {string} url
+ * @param {array or string} protocols
+ * @param {string} proxyHost
+ * @param {int} proxyPort
+ * @param {string} headers
+ */
+ WebSocket = function(url, protocols, proxyHost, proxyPort, headers) {
+ var self = this;
+ self.__id = WebSocket.__nextId++;
+ WebSocket.__instances[self.__id] = self;
+ self.readyState = WebSocket.CONNECTING;
+ self.bufferedAmount = 0;
+ self.__events = {};
+ if (!protocols) {
+ protocols = [];
+ } else if (typeof protocols == "string") {
+ protocols = [protocols];
+ }
+ // Uses setTimeout() to make sure __createFlash() runs after the caller sets ws.onopen etc.
+ // Otherwise, when onopen fires immediately, onopen is called before it is set.
+ setTimeout(function() {
+ WebSocket.__addTask(function() {
+ WebSocket.__flash.create(
+ self.__id, url, protocols, proxyHost || null, proxyPort || 0, headers || null);
+ });
+ }, 0);
+ };
+
+ /**
+ * Send data to the web socket.
+ * @param {string} data The data to send to the socket.
+ * @return {boolean} True for success, false for failure.
+ */
+ WebSocket.prototype.send = function(data) {
+ if (this.readyState == WebSocket.CONNECTING) {
+ throw "INVALID_STATE_ERR: Web Socket connection has not been established";
+ }
+ // We use encodeURIComponent() here, because FABridge doesn't work if
+ // the argument includes some characters. We don't use escape() here
+ // because of this:
+ // https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide/Functions#escape_and_unescape_Functions
+ // But it looks decodeURIComponent(encodeURIComponent(s)) doesn't
+ // preserve all Unicode characters either e.g. "\uffff" in Firefox.
+ // Note by wtritch: Hopefully this will not be necessary using ExternalInterface. Will require
+ // additional testing.
+ var result = WebSocket.__flash.send(this.__id, encodeURIComponent(data));
+ if (result < 0) { // success
+ return true;
+ } else {
+ this.bufferedAmount += result;
+ return false;
+ }
+ };
+
+ /**
+ * Close this web socket gracefully.
+ */
+ WebSocket.prototype.close = function() {
+ if (this.readyState == WebSocket.CLOSED || this.readyState == WebSocket.CLOSING) {
+ return;
+ }
+ this.readyState = WebSocket.CLOSING;
+ WebSocket.__flash.close(this.__id);
+ };
+
+ /**
+ * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
+ *
+ * @param {string} type
+ * @param {function} listener
+ * @param {boolean} useCapture
+ * @return void
+ */
+ WebSocket.prototype.addEventListener = function(type, listener, useCapture) {
+ if (!(type in this.__events)) {
+ this.__events[type] = [];
+ }
+ this.__events[type].push(listener);
+ };
+
+ /**
+ * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
+ *
+ * @param {string} type
+ * @param {function} listener
+ * @param {boolean} useCapture
+ * @return void
+ */
+ WebSocket.prototype.removeEventListener = function(type, listener, useCapture) {
+ if (!(type in this.__events)) return;
+ var events = this.__events[type];
+ for (var i = events.length - 1; i >= 0; --i) {
+ if (events[i] === listener) {
+ events.splice(i, 1);
+ break;
+ }
+ }
+ };
+
+ /**
+ * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
+ *
+ * @param {Event} event
+ * @return void
+ */
+ WebSocket.prototype.dispatchEvent = function(event) {
+ var events = this.__events[event.type] || [];
+ for (var i = 0; i < events.length; ++i) {
+ events[i](event);
+ }
+ var handler = this["on" + event.type];
+ if (handler) handler(event);
+ };
+
+ /**
+ * Handles an event from Flash.
+ * @param {Object} flashEvent
+ */
+ WebSocket.prototype.__handleEvent = function(flashEvent) {
+ if ("readyState" in flashEvent) {
+ this.readyState = flashEvent.readyState;
+ }
+ if ("protocol" in flashEvent) {
+ this.protocol = flashEvent.protocol;
+ }
+
+ var jsEvent;
+ if (flashEvent.type == "open" || flashEvent.type == "error") {
+ jsEvent = this.__createSimpleEvent(flashEvent.type);
+ } else if (flashEvent.type == "close") {
+ // TODO implement jsEvent.wasClean
+ jsEvent = this.__createSimpleEvent("close");
+ } else if (flashEvent.type == "message") {
+ var data = decodeURIComponent(flashEvent.message);
+ jsEvent = this.__createMessageEvent("message", data);
+ } else {
+ throw "unknown event type: " + flashEvent.type;
+ }
+
+ this.dispatchEvent(jsEvent);
+ };
+
+ WebSocket.prototype.__createSimpleEvent = function(type) {
+ if (document.createEvent && window.Event) {
+ var event = document.createEvent("Event");
+ event.initEvent(type, false, false);
+ return event;
+ } else {
+ return {type: type, bubbles: false, cancelable: false};
+ }
+ };
+
+ WebSocket.prototype.__createMessageEvent = function(type, data) {
+ if (document.createEvent && window.MessageEvent && !window.opera) {
+ var event = document.createEvent("MessageEvent");
+ event.initMessageEvent("message", false, false, data, null, null, window, null);
+ return event;
+ } else {
+ // IE and Opera, the latter one truncates the data parameter after any 0x00 bytes.
+ return {type: type, data: data, bubbles: false, cancelable: false};
+ }
+ };
+
+ /**
+ * Define the WebSocket readyState enumeration.
+ */
+ WebSocket.CONNECTING = 0;
+ WebSocket.OPEN = 1;
+ WebSocket.CLOSING = 2;
+ WebSocket.CLOSED = 3;
+
+ WebSocket.__flash = null;
+ WebSocket.__instances = {};
+ WebSocket.__tasks = [];
+ WebSocket.__nextId = 0;
+
+ /**
+ * Load a new flash security policy file.
+ * @param {string} url
+ */
+ WebSocket.loadFlashPolicyFile = function(url){
+ WebSocket.__addTask(function() {
+ WebSocket.__flash.loadManualPolicyFile(url);
+ });
+ };
+
+ /**
+ * Loads WebSocketMain.swf and creates WebSocketMain object in Flash.
+ */
+ WebSocket.__initialize = function() {
+ if (WebSocket.__flash) return;
+
+ if (WebSocket.__swfLocation) {
+ // For backword compatibility.
+ window.WEB_SOCKET_SWF_LOCATION = WebSocket.__swfLocation;
+ }
+ if (!window.WEB_SOCKET_SWF_LOCATION) {
+ console.error("[WebSocket] set WEB_SOCKET_SWF_LOCATION to location of WebSocketMain.swf");
+ return;
+ }
+ var container = document.createElement("div");
+ container.id = "webSocketContainer";
+ // Hides Flash box. We cannot use display: none or visibility: hidden because it prevents
+ // Flash from loading at least in IE. So we move it out of the screen at (-100, -100).
+ // But this even doesn't work with Flash Lite (e.g. in Droid Incredible). So with Flash
+ // Lite, we put it at (0, 0). This shows 1x1 box visible at left-top corner but this is
+ // the best we can do as far as we know now.
+ container.style.position = "absolute";
+ if (WebSocket.__isFlashLite()) {
+ container.style.left = "0px";
+ container.style.top = "0px";
+ } else {
+ container.style.left = "-100px";
+ container.style.top = "-100px";
+ }
+ var holder = document.createElement("div");
+ holder.id = "webSocketFlash";
+ container.appendChild(holder);
+ document.body.appendChild(container);
+ // See this article for hasPriority:
+ // http://help.adobe.com/en_US/as3/mobile/WS4bebcd66a74275c36cfb8137124318eebc6-7ffd.html
+ swfobject.embedSWF(
+ WEB_SOCKET_SWF_LOCATION,
+ "webSocketFlash",
+ "1" /* width */,
+ "1" /* height */,
+ "10.0.0" /* SWF version */,
+ null,
+ null,
+ {hasPriority: true, swliveconnect : true, allowScriptAccess: "always"},
+ null,
+ function(e) {
+ if (!e.success) {
+ console.error("[WebSocket] swfobject.embedSWF failed");
+ }
+ });
+ };
+
+ /**
+ * Called by Flash to notify JS that it's fully loaded and ready
+ * for communication.
+ */
+ WebSocket.__onFlashInitialized = function() {
+ // We need to set a timeout here to avoid round-trip calls
+ // to flash during the initialization process.
+ setTimeout(function() {
+ WebSocket.__flash = document.getElementById("webSocketFlash");
+ WebSocket.__flash.setCallerUrl(location.href);
+ WebSocket.__flash.setDebug(!!window.WEB_SOCKET_DEBUG);
+ for (var i = 0; i < WebSocket.__tasks.length; ++i) {
+ WebSocket.__tasks[i]();
+ }
+ WebSocket.__tasks = [];
+ }, 0);
+ };
+
+ /**
+ * Called by Flash to notify WebSockets events are fired.
+ */
+ WebSocket.__onFlashEvent = function() {
+ setTimeout(function() {
+ try {
+ // Gets events using receiveEvents() instead of getting it from event object
+ // of Flash event. This is to make sure to keep message order.
+ // It seems sometimes Flash events don't arrive in the same order as they are sent.
+ var events = WebSocket.__flash.receiveEvents();
+ for (var i = 0; i < events.length; ++i) {
+ WebSocket.__instances[events[i].webSocketId].__handleEvent(events[i]);
+ }
+ } catch (e) {
+ console.error(e);
+ }
+ }, 0);
+ return true;
+ };
+
+ // Called by Flash.
+ WebSocket.__log = function(message) {
+ console.log(decodeURIComponent(message));
+ };
+
+ // Called by Flash.
+ WebSocket.__error = function(message) {
+ console.error(decodeURIComponent(message));
+ };
+
+ WebSocket.__addTask = function(task) {
+ if (WebSocket.__flash) {
+ task();
+ } else {
+ WebSocket.__tasks.push(task);
+ }
+ };
+
+ /**
+ * Test if the browser is running flash lite.
+ * @return {boolean} True if flash lite is running, false otherwise.
+ */
+ WebSocket.__isFlashLite = function() {
+ if (!window.navigator || !window.navigator.mimeTypes) {
+ return false;
+ }
+ var mimeType = window.navigator.mimeTypes["application/x-shockwave-flash"];
+ if (!mimeType || !mimeType.enabledPlugin || !mimeType.enabledPlugin.filename) {
+ return false;
+ }
+ return mimeType.enabledPlugin.filename.match(/flashlite/i) ? true : false;
+ };
+
+ if (!window.WEB_SOCKET_DISABLE_AUTO_INITIALIZATION) {
+ if (window.addEventListener) {
+ window.addEventListener("load", function(){
+ WebSocket.__initialize();
+ }, false);
+ } else {
+ window.attachEvent("onload", function(){
+ WebSocket.__initialize();
+ });
+ }
+ }
+
+})();
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ *
+ * @api public
+ */
+
+ exports.XHR = XHR;
+
+ /**
+ * XHR constructor
+ *
+ * @costructor
+ * @api public
+ */
+
+ function XHR (socket) {
+ if (!socket) return;
+
+ io.Transport.apply(this, arguments);
+ this.sendBuffer = [];
+ };
+
+ /**
+ * Inherits from Transport.
+ */
+
+ io.util.inherit(XHR, io.Transport);
+
+ /**
+ * Establish a connection
+ *
+ * @returns {Transport}
+ * @api public
+ */
+
+ XHR.prototype.open = function () {
+ this.socket.setBuffer(false);
+ this.onOpen();
+ this.get();
+
+ // we need to make sure the request succeeds since we have no indication
+ // whether the request opened or not until it succeeded.
+ this.setCloseTimeout();
+
+ return this;
+ };
+
+ /**
+ * Check if we need to send data to the Socket.IO server, if we have data in our
+ * buffer we encode it and forward it to the `post` method.
+ *
+ * @api private
+ */
+
+ XHR.prototype.payload = function (payload) {
+ var msgs = [];
+
+ for (var i = 0, l = payload.length; i < l; i++) {
+ msgs.push(io.parser.encodePacket(payload[i]));
+ }
+
+ this.send(io.parser.encodePayload(msgs));
+ };
+
+ /**
+ * Send data to the Socket.IO server.
+ *
+ * @param data The message
+ * @returns {Transport}
+ * @api public
+ */
+
+ XHR.prototype.send = function (data) {
+ this.post(data);
+ return this;
+ };
+
+ /**
+ * Posts a encoded message to the Socket.IO server.
+ *
+ * @param {String} data A encoded message.
+ * @api private
+ */
+
+ function empty () { };
+
+ XHR.prototype.post = function (data) {
+ var self = this;
+ this.socket.setBuffer(true);
+
+ function stateChange () {
+ if (this.readyState == 4) {
+ this.onreadystatechange = empty;
+ self.posting = false;
+
+ if (this.status == 200){
+ self.socket.setBuffer(false);
+ } else {
+ self.onClose();
+ }
+ }
+ }
+
+ function onload () {
+ this.onload = empty;
+ self.socket.setBuffer(false);
+ };
+
+ this.sendXHR = this.request('POST');
+
+ if (window.XDomainRequest && this.sendXHR instanceof XDomainRequest) {
+ this.sendXHR.onload = this.sendXHR.onerror = onload;
+ } else {
+ this.sendXHR.onreadystatechange = stateChange;
+ }
+
+ this.sendXHR.send(data);
+ };
+
+ /**
+ * Disconnects the established `XHR` connection.
+ *
+ * @returns {Transport}
+ * @api public
+ */
+
+ XHR.prototype.close = function () {
+ this.onClose();
+ return this;
+ };
+
+ /**
+ * Generates a configured XHR request
+ *
+ * @param {String} url The url that needs to be requested.
+ * @param {String} method The method the request should use.
+ * @returns {XMLHttpRequest}
+ * @api private
+ */
+
+ XHR.prototype.request = function (method) {
+ var req = io.util.request(this.socket.isXDomain());
+ req.open(method || 'GET', this.prepareUrl() + '?t' + (+ new Date));
+
+ if (method == 'POST') {
+ try {
+ if (req.setRequestHeader) {
+ req.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
+ } else {
+ // XDomainRequest
+ req.contentType = 'text/plain';
+ }
+ } catch (e) {}
+ }
+
+ return req;
+ };
+
+ /**
+ * Returns the scheme to use for the transport URLs.
+ *
+ * @api private
+ */
+
+ XHR.prototype.scheme = function () {
+ return this.socket.options.secure ? 'https' : 'http';
+ };
+
+ /**
+ * Check if the XHR transports are supported
+ *
+ * @param {Boolean} xdomain Check if we support cross domain requests.
+ * @returns {Boolean}
+ * @api public
+ */
+
+ XHR.check = function (socket, xdomain) {
+ try {
+ if (io.util.request(xdomain)) {
+ return true;
+ }
+ } catch(e) {}
+
+ return false;
+ };
+
+ /**
+ * Check if the XHR transport supports corss domain requests.
+ *
+ * @returns {Boolean}
+ * @api public
+ */
+
+ XHR.xdomainCheck = function () {
+ return XHR.check(null, true);
+ };
+
+})(
+ 'undefined' != typeof io ? io.Transport : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports.htmlfile = HTMLFile;
+
+ /**
+ * The HTMLFile transport creates a `forever iframe` based transport
+ * for Internet Explorer. Regular forever iframe implementations will
+ * continuously trigger the browsers buzy indicators. If the forever iframe
+ * is created inside a `htmlfile` these indicators will not be trigged.
+ *
+ * @constructor
+ * @extends {io.Transport.XHR}
+ * @api public
+ */
+
+ function HTMLFile (socket) {
+ io.Transport.XHR.apply(this, arguments);
+ };
+
+ /**
+ * Inherits from XHR transport.
+ */
+
+ io.util.inherit(HTMLFile, io.Transport.XHR);
+
+ /**
+ * Transport name
+ *
+ * @api public
+ */
+
+ HTMLFile.prototype.name = 'htmlfile';
+
+ /**
+ * Creates a new ActiveX `htmlfile` with a forever loading iframe
+ * that can be used to listen to messages. Inside the generated
+ * `htmlfile` a reference will be made to the HTMLFile transport.
+ *
+ * @api private
+ */
+
+ HTMLFile.prototype.get = function () {
+ this.doc = new ActiveXObject('htmlfile');
+ this.doc.open();
+ this.doc.write('<html></html>');
+ this.doc.close();
+ this.doc.parentWindow.s = this;
+
+ var iframeC = this.doc.createElement('div');
+ iframeC.className = 'socketio';
+
+ this.doc.body.appendChild(iframeC);
+ this.iframe = this.doc.createElement('iframe');
+
+ iframeC.appendChild(this.iframe);
+
+ this.iframe.src = this.prepareUrl() + '/?t=' + (+ new Date);
+
+ var self = this;
+
+ io.util.on(window, 'unload', function () {
+ self.destroy();
+ });
+ };
+
+ /**
+ * The Socket.IO server will write script tags inside the forever
+ * iframe, this function will be used as callback for the incoming
+ * information.
+ *
+ * @param {String} data The message
+ * @param {document} doc Reference to the context
+ * @api private
+ */
+
+ HTMLFile.prototype._ = function (data, doc) {
+ this.onData(data);
+ try {
+ var script = doc.getElementsByTagName('script')[0];
+ script.parentNode.removeChild(script);
+ } catch (e) { }
+ };
+
+ /**
+ * Destroy the established connection, iframe and `htmlfile`.
+ * And calls the `CollectGarbage` function of Internet Explorer
+ * to release the memory.
+ *
+ * @api private
+ */
+
+ HTMLFile.prototype.destroy = function () {
+ if (this.iframe){
+ try {
+ this.iframe.src = 'about:blank';
+ } catch(e){}
+
+ this.doc = null;
+ this.iframe.parentNode.removeChild(this.iframe);
+ this.iframe = null;
+
+ CollectGarbage();
+ }
+ };
+
+ /**
+ * Disconnects the established connection.
+ *
+ * @returns {Transport} Chaining.
+ * @api public
+ */
+
+ HTMLFile.prototype.close = function () {
+ this.destroy();
+ return io.Transport.XHR.prototype.close.call(this);
+ };
+
+ /**
+ * Checks if the browser supports this transport. The browser
+ * must have an `ActiveXObject` implementation.
+ *
+ * @return {Boolean}
+ * @api public
+ */
+
+ HTMLFile.check = function () {
+ if ('ActiveXObject' in window){
+ try {
+ var a = new ActiveXObject('htmlfile');
+ return a && io.Transport.XHR.check();
+ } catch(e){}
+ }
+ return false;
+ };
+
+ /**
+ * Check if cross domain requests are supported.
+ *
+ * @returns {Boolean}
+ * @api public
+ */
+
+ HTMLFile.xdomainCheck = function () {
+ // we can probably do handling for sub-domains, we should
+ // test that it's cross domain but a subdomain here
+ return false;
+ };
+
+ /**
+ * Add the transport to your public io.transports array.
+ *
+ * @api private
+ */
+
+ io.transports.push('htmlfile');
+
+})(
+ 'undefined' != typeof io ? io.Transport : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports['xhr-polling'] = XHRPolling;
+
+ /**
+ * The XHR-polling transport uses long polling XHR requests to create a
+ * "persistent" connection with the server.
+ *
+ * @constructor
+ * @api public
+ */
+
+ function XHRPolling () {
+ io.Transport.XHR.apply(this, arguments);
+ };
+
+ /**
+ * Inherits from XHR transport.
+ */
+
+ io.util.inherit(XHRPolling, io.Transport.XHR);
+
+ /**
+ * Transport name
+ *
+ * @api public
+ */
+
+ XHRPolling.prototype.name = 'xhr-polling';
+
+ /**
+ * Establish a connection, for iPhone and Android this will be done once the page
+ * is loaded.
+ *
+ * @returns {Transport} Chaining.
+ * @api public
+ */
+
+ XHRPolling.prototype.open = function () {
+ var self = this;
+
+ io.util.defer(function () {
+ io.Transport.XHR.prototype.open.call(self);
+ });
+
+ return false;
+ };
+
+ /**
+ * Starts a XHR request to wait for incoming messages.
+ *
+ * @api private
+ */
+
+ function empty () {};
+
+ XHRPolling.prototype.get = function () {
+ if (!this.open) return;
+
+ var self = this;
+
+ function stateChange () {
+ if (this.readyState == 4) {
+ this.onreadystatechange = empty;
+
+ if (this.status == 200) {
+ self.onData(this.responseText);
+ self.get();
+ } else {
+ self.onClose();
+ }
+ }
+ };
+
+ function onload () {
+ this.onload = empty;
+ self.onData(this.responseText);
+ self.get();
+ };
+
+ this.xhr = this.request();
+
+ if (window.XDomainRequest && this.xhr instanceof XDomainRequest) {
+ this.xhr.onload = this.xhr.onerror = onload;
+ } else {
+ this.xhr.onreadystatechange = stateChange;
+ }
+
+ this.xhr.send(null);
+ };
+
+ /**
+ * Handle the unclean close behavior.
+ *
+ * @api private
+ */
+
+ XHRPolling.prototype.onClose = function () {
+ io.Transport.XHR.prototype.onClose.call(this);
+
+ if (this.xhr) {
+ this.xhr.onreadystatechange = this.xhr.onload = empty;
+ try {
+ this.xhr.abort();
+ } catch(e){}
+ this.xhr = null;
+ }
+ };
+
+ /**
+ * Add the transport to your public io.transports array.
+ *
+ * @api private
+ */
+
+ io.transports.push('xhr-polling');
+
+})(
+ 'undefined' != typeof io ? io.Transport : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports['jsonp-polling'] = JSONPPolling;
+
+ /**
+ * The JSONP transport creates an persistent connection by dynamically
+ * inserting a script tag in the page. This script tag will receive the
+ * information of the Socket.IO server. When new information is received
+ * it creates a new script tag for the new data stream.
+ *
+ * @constructor
+ * @extends {io.Transport.xhr-polling}
+ * @api public
+ */
+
+ function JSONPPolling (socket) {
+ io.Transport['xhr-polling'].apply(this, arguments);
+
+ this.index = io.j.length;
+
+ var self = this;
+
+ io.j.push(function (msg) {
+ self._(msg);
+ });
+ };
+
+ /**
+ * Inherits from XHR polling transport.
+ */
+
+ io.util.inherit(JSONPPolling, io.Transport['xhr-polling']);
+
+ /**
+ * Transport name
+ *
+ * @api public
+ */
+
+ JSONPPolling.prototype.name = 'jsonp-polling';
+
+ /**
+ * Posts a encoded message to the Socket.IO server using an iframe.
+ * The iframe is used because script tags can create POST based requests.
+ * The iframe is positioned outside of the view so the user does not
+ * notice it's existence.
+ *
+ * @param {String} data A encoded message.
+ * @api private
+ */
+
+ JSONPPolling.prototype.post = function (data) {
+ var self = this;
+
+ if (!this.form) {
+ var form = document.createElement('FORM')
+ , area = document.createElement('TEXTAREA')
+ , id = this.iframeId = 'socketio_iframe_' + this.index
+ , iframe;
+
+ form.className = 'socketio';
+ form.style.position = 'absolute';
+ form.style.top = '-1000px';
+ form.style.left = '-1000px';
+ form.target = id;
+ form.method = 'POST';
+ area.name = 'd';
+ form.appendChild(area);
+ document.body.appendChild(form);
+
+ this.form = form;
+ this.area = area;
+ }
+
+ this.form.action = this.prepareUrl() + '?t=' + (+new Date) + '&i=' + this.index;
+
+ function complete () {
+ initIframe();
+ self.socket.setBuffer(false);
+ };
+
+ function initIframe () {
+ if (self.iframe) {
+ self.form.removeChild(self.iframe);
+ }
+
+ try {
+ // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
+ iframe = document.createElement('<iframe name="'+ self.iframeId +'">');
+ } catch (e) {
+ iframe = document.createElement('iframe');
+ iframe.name = self.iframeId;
+ }
+
+ iframe.id = self.iframeId;
+
+ self.form.appendChild(iframe);
+ self.iframe = iframe;
+ };
+
+ initIframe();
+
+ this.area.value = data;
+
+ try {
+ this.form.submit();
+ } catch(e) {}
+
+ if (this.iframe.attachEvent) {
+ iframe.onreadystatechange = function () {
+ if (self.iframe.readyState == 'complete') {
+ complete();
+ }
+ };
+ } else {
+ this.iframe.onload = complete;
+ }
+ };
+
+ /**
+ * Creates a new JSONP poll that can be used to listen
+ * for messages from the Socket.IO server.
+ *
+ * @api private
+ */
+
+ JSONPPolling.prototype.get = function () {
+ var self = this
+ , script = document.createElement('SCRIPT');
+
+ if (this.script) {
+ this.script.parentNode.removeChild(this.script);
+ this.script = null;
+ }
+
+ script.async = true;
+ script.src = this.prepareUrl() + '/?t=' + (+new Date) + '&i=' + this.index;
+ script.onerror = function () {
+ self.onClose();
+ };
+
+ var insertAt = document.getElementsByTagName('script')[0]
+ insertAt.parentNode.insertBefore(script, insertAt);
+ this.script = script;
+ };
+
+ /**
+ * Callback function for the incoming message stream from the Socket.IO server.
+ *
+ * @param {String} data The message
+ * @api private
+ */
+
+ JSONPPolling.prototype._ = function (msg) {
+ this.onData(msg);
+ if (this.open) {
+ this.get();
+ }
+ return this;
+ };
+
+ /**
+ * Checks if browser supports this transport.
+ *
+ * @return {Boolean}
+ * @api public
+ */
+
+ JSONPPolling.check = function () {
+ return true;
+ };
+
+ /**
+ * Check if cross domain requests are supported
+ *
+ * @returns {Boolean}
+ * @api public
+ */
+
+ JSONPPolling.xdomainCheck = function () {
+ return true;
+ };
+
+ /**
+ * Add the transport to your public io.transports array.
+ *
+ * @api private
+ */
+
+ io.transports.push('jsonp-polling');
+
+})(
+ 'undefined' != typeof io ? io.Transport : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
--- /dev/null
+/*! Socket.IO.min.js build:0.7.4, production. Copyright(c) 2011 LearnBoost <dev@learnboost.com> MIT Licensed */
+(function(a){var b=a;b.version="0.7.4",b.protocol=1,b.transports=[],b.j=[],b.sockets={},b.connect=function(a,c){var d=b.util.parseUri(a),e,f;"undefined"!=typeof document&&(d.protocol=d.protocol||document.location.protocol.slice(0,-1),d.host=d.host||document.domain,d.port=d.port||document.location.port),e=b.util.uniqueUri(d);var g={host:d.host,secure:d.protocol=="https",port:d.port||80};b.util.merge(g,c);if(g["force new connection"]||!b.sockets[e])f=new b.Socket(g);!g["force new connection"]&&f&&(b.sockets[e]=f),f=f||b.sockets[e];return f.of(d.path.length>1?d.path:"")}})("object"==typeof module?module.exports:window.io={}),function(a){var b=a.util={},c=/^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,d=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];b.parseUri=function(a){var b=c.exec(a||""),e={},f=14;while(f--)e[d[f]]=b[f]||"";return e},b.uniqueUri=function(a){var b=a.protocol,c=a.host,d=a.port;"undefined"!=typeof document?(c=c||document.domain,d=d||(b=="https"&&document.location.protocol!=="https:"?443:document.location.port)):(c=c||"localhost",!d&&b=="https"&&(d=443));return(b||"http")+"://"+c+":"+(d||80)};var e=!1;b.load=function(a){if(document.readyState==="complete"||e)return a();b.on(window,"load",a,!1)},b.on=function(a,b,c,d){a.attachEvent?a.attachEvent("on"+b,c):a.addEventListener(b,c,d)},b.request=function(a){if("undefined"!=typeof window){if(a&&window.XDomainRequest)return new 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\ No newline at end of file
projects / KiwiIRC.git / commitdiff