| /*! Socket.IO.js build:0.9.11, development. Copyright(c) 2011 LearnBoost <dev@learnboost.com> MIT Licensed */ |
| |
| (function(global) { |
| |
| var io = ('undefined' === typeof module ? {} : module.exports); |
| |
| /** |
| * 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 = '0.9.11'; |
| |
| /** |
| * 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 (global && global.location) { |
| uri.protocol = uri.protocol || global.location.protocol.slice(0, -1); |
| uri.host = uri.host || (global.document |
| ? global.document.domain : global.location.hostname); |
| uri.port = uri.port || global.location.port; |
| } |
| |
| uuri = io.util.uniqueUri(uri); |
| |
| var options = { |
| host: uri.host |
| , secure: 'https' == uri.protocol |
| , port: uri.port || ('https' == uri.protocol ? 443 : 80) |
| , query: uri.query || '' |
| }; |
| |
| 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 : (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 ('document' in global) { |
| 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); |
| }; |
| |
| /** |
| * Mergest 2 query strings in to once unique query string |
| * |
| * @param {String} base |
| * @param {String} addition |
| * @api public |
| */ |
| |
| util.query = function (base, addition) { |
| var query = util.chunkQuery(base || '') |
| , components = []; |
| |
| util.merge(query, util.chunkQuery(addition || '')); |
| for (var part in query) { |
| if (query.hasOwnProperty(part)) { |
| components.push(part + '=' + query[part]); |
| } |
| } |
| |
| return components.length ? '?' + components.join('&') : ''; |
| }; |
| |
| /** |
| * Transforms a querystring in to an object |
| * |
| * @param {String} qs |
| * @api public |
| */ |
| |
| util.chunkQuery = function (qs) { |
| var query = {} |
| , params = qs.split('&') |
| , i = 0 |
| , l = params.length |
| , kv; |
| |
| for (; i < l; ++i) { |
| kv = params[i].split('='); |
| if (kv[0]) { |
| query[kv[0]] = kv[1]; |
| } |
| } |
| |
| return query; |
| }; |
| |
| /** |
| * 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' in global && document.readyState === 'complete' || pageLoaded) { |
| return fn(); |
| } |
| |
| util.on(global, 'load', fn, false); |
| }; |
| |
| /** |
| * Adds an event. |
| * |
| * @api private |
| */ |
| |
| util.on = function (element, event, fn, capture) { |
| if (element.attachEvent) { |
| element.attachEvent('on' + event, fn); |
| } else if (element.addEventListener) { |
| 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 (xdomain && 'undefined' != typeof XDomainRequest && !util.ua.hasCORS) { |
| return new XDomainRequest(); |
| } |
| |
| if ('undefined' != typeof XMLHttpRequest && (!xdomain || util.ua.hasCORS)) { |
| return new XMLHttpRequest(); |
| } |
| |
| if (!xdomain) { |
| try { |
| return new window[(['Active'].concat('Object').join('X'))]('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 || 'undefined' != typeof importScripts) { |
| 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) { |
| function f() {}; |
| f.prototype = ctor2.prototype; |
| ctor.prototype = new f; |
| }; |
| |
| /** |
| * 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) { |
| |
| 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 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); |
| |
| /** |
| * Detect iPad/iPhone/iPod. |
| * |
| * @api public |
| */ |
| |
| util.ua.iDevice = 'undefined' != typeof navigator |
| && /iPad|iPhone|iPod/i.test(navigator.userAgent); |
| |
| })('undefined' != typeof io ? 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) { |
| 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]+)?(\+)?:([^:]+)?:?([\s\S]*)?/; |
| |
| 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); |
| |
| |
| /** |
| * Indicates whether heartbeats is enabled for this transport |
| * |
| * @api private |
| */ |
| |
| Transport.prototype.heartbeats = function () { |
| return true; |
| }; |
| |
| /** |
| * 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(); |
| |
| // If the connection in currently open (or in a reopening state) reset the close |
| // timeout since we have just received data. This check is necessary so |
| // that we don't reset the timeout on an explicitly disconnected connection. |
| if (this.socket.connected || this.socket.connecting || this.socket.reconnecting) { |
| 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) { |
| this.socket.setHeartbeatTimeout(); |
| |
| if (packet.type == 'heartbeat') { |
| return this.onHeartbeat(); |
| } |
| |
| if (packet.type == 'connect' && packet.endpoint == '') { |
| this.onConnect(); |
| } |
| |
| if (packet.type == 'error' && packet.advice == 'reconnect') { |
| this.isOpen = false; |
| } |
| |
| 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.isOpen) 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.isOpen = 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.isOpen = false; |
| this.socket.onClose(); |
| this.onDisconnect(); |
| }; |
| |
| /** |
| * 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; |
| }; |
| |
| /** |
| * Checks if the transport is ready to start a connection. |
| * |
| * @param {Socket} socket The socket instance that needs a transport |
| * @param {Function} fn The callback |
| * @api private |
| */ |
| |
| Transport.prototype.ready = function (socket, fn) { |
| fn.call(this); |
| }; |
| })( |
| '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 persistent |
| * connection with a Socket.IO enabled server. |
| * |
| * @api public |
| */ |
| |
| function Socket (options) { |
| this.options = { |
| port: 80 |
| , secure: false |
| , document: 'document' in global ? document : false |
| , resource: 'socket.io' |
| , transports: io.transports |
| , 'connect timeout': 10000 |
| , 'try multiple transports': true |
| , 'reconnect': true |
| , 'reconnection delay': 500 |
| , 'reconnection limit': Infinity |
| , 'reopen delay': 3000 |
| , 'max reconnection attempts': 10 |
| , 'sync disconnect on unload': false |
| , 'auto connect': true |
| , 'flash policy port': 10843 |
| , 'manualFlush': false |
| }; |
| |
| 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(global, '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.connecting = false; |
| self.onError(data.message); |
| } else { |
| fn.apply(null, data.split(':')); |
| } |
| }; |
| |
| var url = [ |
| 'http' + (options.secure ? 's' : '') + ':/' |
| , options.host + ':' + options.port |
| , options.resource |
| , io.protocol |
| , io.util.query(this.options.query, 't=' + +new Date) |
| ].join('/'); |
| |
| if (this.isXDomain() && !io.util.ua.hasCORS) { |
| 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, true); |
| if (this.isXDomain()) { |
| xhr.withCredentials = true; |
| } |
| xhr.onreadystatechange = function () { |
| if (xhr.readyState == 4) { |
| xhr.onreadystatechange = empty; |
| |
| if (xhr.status == 200) { |
| complete(xhr.responseText); |
| } else if (xhr.status == 403) { |
| self.onError(xhr.responseText); |
| } else { |
| self.connecting = false; |
| !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(this))) { |
| 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; |
| self.connecting = true; |
| |
| this.handshake(function (sid, heartbeat, close, transports) { |
| self.sessionid = sid; |
| self.closeTimeout = close * 1000; |
| self.heartbeatTimeout = heartbeat * 1000; |
| if(!self.transports) |
| self.transports = self.origTransports = (transports ? io.util.intersect( |
| transports.split(',') |
| , self.options.transports |
| ) : self.options.transports); |
| |
| self.setHeartbeatTimeout(); |
| |
| function connect (transports){ |
| if (self.transport) self.transport.clearTimeouts(); |
| |
| self.transport = self.getTransport(transports); |
| if (!self.transport) return self.publish('connect_failed'); |
| |
| // once the transport is ready |
| self.transport.ready(self, function () { |
| 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']) { |
| var remaining = self.transports; |
| |
| 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.transports); |
| |
| self.once('connect', function (){ |
| clearTimeout(self.connectTimeoutTimer); |
| |
| fn && typeof fn == 'function' && fn(); |
| }); |
| }); |
| |
| return this; |
| }; |
| |
| /** |
| * Clears and sets a new heartbeat timeout using the value given by the |
| * server during the handshake. |
| * |
| * @api private |
| */ |
| |
| Socket.prototype.setHeartbeatTimeout = function () { |
| clearTimeout(this.heartbeatTimeoutTimer); |
| if(this.transport && !this.transport.heartbeats()) return; |
| |
| var self = this; |
| this.heartbeatTimeoutTimer = setTimeout(function () { |
| self.transport.onClose(); |
| }, this.heartbeatTimeout); |
| }; |
| |
| /** |
| * 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) { |
| if (!this.options['manualFlush']) { |
| this.flushBuffer(); |
| } |
| } |
| }; |
| |
| /** |
| * Flushes the buffer data over the wire. |
| * To be invoked manually when 'manualFlush' is set to true. |
| * |
| * @api public |
| */ |
| |
| Socket.prototype.flushBuffer = function() { |
| this.transport.payload(this.buffer); |
| this.buffer = []; |
| }; |
| |
| |
| /** |
| * Disconnect the established connect. |
| * |
| * @returns {io.Socket} |
| * @api public |
| */ |
| |
| Socket.prototype.disconnect = function () { |
| if (this.connected || this.connecting) { |
| 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(); |
| var uri = [ |
| 'http' + (this.options.secure ? 's' : '') + ':/' |
| , this.options.host + ':' + this.options.port |
| , this.options.resource |
| , io.protocol |
| , '' |
| , this.sessionid |
| ].join('/') + '/?disconnect=1'; |
| |
| xhr.open('GET', uri, false); |
| xhr.send(null); |
| |
| // 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 port = global.location.port || |
| ('https:' == global.location.protocol ? 443 : 80); |
| |
| return this.options.host !== global.location.hostname |
| || this.options.port != port; |
| }; |
| |
| /** |
| * Called upon handshake. |
| * |
| * @api private |
| */ |
| |
| Socket.prototype.onConnect = function () { |
| if (!this.connected) { |
| 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; |
| clearTimeout(this.heartbeatTimeoutTimer); |
| }; |
| |
| /** |
| * 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.connecting)) { |
| this.disconnect(); |
| if (this.options.reconnect) { |
| 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 |
| , wasConnecting = this.connecting; |
| |
| this.connected = false; |
| this.connecting = false; |
| this.open = false; |
| |
| if (wasConnected || wasConnecting) { |
| this.transport.close(); |
| this.transport.clearTimeouts(); |
| if (wasConnected) { |
| 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'] |
| , limit = this.options['reconnection limit']; |
| |
| function reset () { |
| if (self.connected) { |
| for (var i in self.namespaces) { |
| if (self.namespaces.hasOwnProperty(i) && '' !== i) { |
| self.namespaces[i].packet({ type: 'connect' }); |
| } |
| } |
| self.publish('reconnect', self.transport.name, self.reconnectionAttempts); |
| } |
| |
| clearTimeout(self.reconnectionTimer); |
| |
| 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.transports = self.origTransports; |
| self.transport = self.getTransport(); |
| self.redoTransports = true; |
| self.connect(); |
| } else { |
| self.publish('reconnect_failed'); |
| reset(); |
| } |
| } else { |
| if (self.reconnectionDelay < limit) { |
| 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 () { |
| var query = io.util.query(this.socket.options.query) |
| , self = this |
| , Socket |
| |
| |
| if (!Socket) { |
| Socket = global.MozWebSocket || global.WebSocket; |
| } |
| |
| this.websocket = new Socket(this.prepareUrl() + query); |
| |
| 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 |
| */ |
| |
| // Do to a bug in the current IDevices browser, we need to wrap the send in a |
| // setTimeout, when they resume from sleeping the browser will crash if |
| // we don't allow the browser time to detect the socket has been closed |
| if (io.util.ua.iDevice) { |
| WS.prototype.send = function (data) { |
| var self = this; |
| setTimeout(function() { |
| self.websocket.send(data); |
| },0); |
| return this; |
| }; |
| } else { |
| 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 global && !('__addTask' in WebSocket)) |
| || 'MozWebSocket' in global; |
| }; |
| |
| /** |
| * 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; |
| }; |
| |
| /** |
| * The WebSocket fall back needs to append the flash container to the body |
| * element, so we need to make sure we have access to it. Or defer the call |
| * until we are sure there is a body element. |
| * |
| * @param {Socket} socket The socket instance that needs a transport |
| * @param {Function} fn The callback |
| * @api private |
| */ |
| |
| Flashsocket.prototype.ready = function (socket, fn) { |
| function init () { |
| var options = socket.options |
| , port = options['flash policy port'] |
| , 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 (!Flashsocket.loaded) { |
| if (typeof WEB_SOCKET_SWF_LOCATION === 'undefined') { |
| // Set the correct file based on the XDomain settings |
| WEB_SOCKET_SWF_LOCATION = path.join('/'); |
| } |
| |
| if (port !== 843) { |
| WebSocket.loadFlashPolicyFile('xmlsocket://' + options.host + ':' + port); |
| } |
| |
| WebSocket.__initialize(); |
| Flashsocket.loaded = true; |
| } |
| |
| fn.call(self); |
| } |
| |
| var self = this; |
| if (document.body) return init(); |
| |
| io.util.load(init); |
| }; |
| |
| /** |
| * Check if the FlashSocket transport is supported as it requires that the Adobe |
| * Flash Player plug-in version `10.0.0` or greater is installed. And also check if |
| * the polyfill is correctly loaded. |
| * |
| * @returns {Boolean} |
| * @api public |
| */ |
| |
| Flashsocket.check = function () { |
| if ( |
| typeof WebSocket == 'undefined' |
| || !('__initialize' in WebSocket) || !swfobject |
| ) return false; |
| |
| return swfobject.getFlashPlayerVersion().major >= 10; |
| }; |
| |
| /** |
| * 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> |
| */ |
| if ('undefined' != typeof window) { |
| 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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swfobject){swfobject[X]=null}swfobject=null})}}();return{registerObject:function(ab,X,aa,Z){if(M.w3&&ab&&X){var Y={};Y.id=ab;Y.swfVersion=X;Y.expressInstall=aa;Y.callbackFn=Z;o[o.length]=Y;w(ab,false)}else{if(Z){Z({success:false,id:ab})}}},getObjectById:function(X){if(M.w3){return z(X)}},embedSWF:function(ab,ah,ae,ag,Y,aa,Z,ad,af,ac){var X={success:false,id:ah};if(M.w3&&!(M.wk&&M.wk<312)&&ab&&ah&&ae&&ag&&Y){w(ah,false);K(function(){ae+="";ag+="";var aj={};if(af&&typeof af===r){for(var al in af){aj[al]=af[al]}}aj.data=ab;aj.width=ae;aj.height=ag;var am={};if(ad&&typeof ad===r){for(var ak in ad){am[ak]=ad[ak]}}if(Z&&typeof Z===r){for(var ai in Z){if(typeof am.flashvars!=D){am.flashvars+="&"+ai+"="+Z[ai]}else{am.flashvars=ai+"="+Z[ai]}}}if(F(Y)){var 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| } |
| // Copyright: Hiroshi Ichikawa <http://gimite.net/en/> |
| // License: New BSD License |
| // Reference: http://dev.w3.org/html5/websockets/ |
| // Reference: http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol |
| |
| (function() { |
| |
| if ('undefined' == typeof window || 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 (global.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()) |
| , query = io.util.query(this.socket.options.query, 't=' + +new Date); |
| |
| req.open(method || 'GET', this.prepareUrl() + query, true); |
| |
| 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 { |
| var request = io.util.request(xdomain), |
| usesXDomReq = (global.XDomainRequest && request instanceof XDomainRequest), |
| socketProtocol = (socket && socket.options && socket.options.secure ? 'https:' : 'http:'), |
| isXProtocol = (global.location && socketProtocol != global.location.protocol); |
| if (request && !(usesXDomReq && isXProtocol)) { |
| return true; |
| } |
| } catch(e) {} |
| |
| return false; |
| }; |
| |
| /** |
| * Check if the XHR transport supports cross domain requests. |
| * |
| * @returns {Boolean} |
| * @api public |
| */ |
| |
| XHR.xdomainCheck = function (socket) { |
| return XHR.check(socket, 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 Ac...eX `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 window[(['Active'].concat('Object').join('X'))]('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); |
| |
| var self = this |
| , query = io.util.query(this.socket.options.query, 't='+ +new Date); |
| |
| this.iframe.src = this.prepareUrl() + query; |
| |
| 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 `Ac...eXObject` implementation. |
| * |
| * @return {Boolean} |
| * @api public |
| */ |
| |
| HTMLFile.check = function (socket) { |
| if (typeof window != "undefined" && (['Active'].concat('Object').join('X')) in window){ |
| try { |
| var a = new window[(['Active'].concat('Object').join('X'))]('htmlfile'); |
| return a && io.Transport.XHR.check(socket); |
| } 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); |
| |
| /** |
| * Merge the properties from XHR transport |
| */ |
| |
| io.util.merge(XHRPolling, io.Transport.XHR); |
| |
| /** |
| * Transport name |
| * |
| * @api public |
| */ |
| |
| XHRPolling.prototype.name = 'xhr-polling'; |
| |
| /** |
| * Indicates whether heartbeats is enabled for this transport |
| * |
| * @api private |
| */ |
| |
| XHRPolling.prototype.heartbeats = function () { |
| return false; |
| }; |
| |
| /** |
| * 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.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.isOpen) 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; |
| this.onerror = empty; |
| self.retryCounter = 1; |
| self.onData(this.responseText); |
| self.get(); |
| }; |
| |
| function onerror () { |
| self.retryCounter ++; |
| if(!self.retryCounter || self.retryCounter > 3) { |
| self.onClose(); |
| } else { |
| self.get(); |
| } |
| }; |
| |
| this.xhr = this.request(); |
| |
| if (global.XDomainRequest && this.xhr instanceof XDomainRequest) { |
| this.xhr.onload = onload; |
| this.xhr.onerror = onerror; |
| } 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 = this.xhr.onerror = empty; |
| try { |
| this.xhr.abort(); |
| } catch(e){} |
| this.xhr = null; |
| } |
| }; |
| |
| /** |
| * Webkit based browsers show a infinit spinner when you start a XHR request |
| * before the browsers onload event is called so we need to defer opening of |
| * the transport until the onload event is called. Wrapping the cb in our |
| * defer method solve this. |
| * |
| * @param {Socket} socket The socket instance that needs a transport |
| * @param {Function} fn The callback |
| * @api private |
| */ |
| |
| XHRPolling.prototype.ready = function (socket, fn) { |
| var self = this; |
| |
| io.util.defer(function () { |
| fn.call(self); |
| }); |
| }; |
| |
| /** |
| * 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) { |
| /** |
| * There is a way to hide the loading indicator in Firefox. If you create and |
| * remove a iframe it will stop showing the current loading indicator. |
| * Unfortunately we can't feature detect that and UA sniffing is evil. |
| * |
| * @api private |
| */ |
| |
| var indicator = global.document && "MozAppearance" in |
| global.document.documentElement.style; |
| |
| /** |
| * 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 |
| , query = io.util.query( |
| this.socket.options.query |
| , 't='+ (+new Date) + '&i=' + this.index |
| ); |
| |
| 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 = '0px'; |
| form.style.left = '0px'; |
| form.style.display = 'none'; |
| form.target = id; |
| form.method = 'POST'; |
| form.setAttribute('accept-charset', 'utf-8'); |
| area.name = 'd'; |
| form.appendChild(area); |
| document.body.appendChild(form); |
| |
| this.form = form; |
| this.area = area; |
| } |
| |
| this.form.action = this.prepareUrl() + query; |
| |
| 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(); |
| |
| // we temporarily stringify until we figure out how to prevent |
| // browsers from turning `\n` into `\r\n` in form inputs |
| this.area.value = io.JSON.stringify(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; |
| } |
| |
| this.socket.setBuffer(true); |
| }; |
| |
| /** |
| * 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') |
| , query = io.util.query( |
| this.socket.options.query |
| , 't='+ (+new Date) + '&i=' + this.index |
| ); |
| |
| if (this.script) { |
| this.script.parentNode.removeChild(this.script); |
| this.script = null; |
| } |
| |
| script.async = true; |
| script.src = this.prepareUrl() + query; |
| script.onerror = function () { |
| self.onClose(); |
| }; |
| |
| var insertAt = document.getElementsByTagName('script')[0]; |
| insertAt.parentNode.insertBefore(script, insertAt); |
| this.script = script; |
| |
| if (indicator) { |
| setTimeout(function () { |
| var iframe = document.createElement('iframe'); |
| document.body.appendChild(iframe); |
| document.body.removeChild(iframe); |
| }, 100); |
| } |
| }; |
| |
| /** |
| * 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.isOpen) { |
| this.get(); |
| } |
| return this; |
| }; |
| |
| /** |
| * The indicator hack only works after onload |
| * |
| * @param {Socket} socket The socket instance that needs a transport |
| * @param {Function} fn The callback |
| * @api private |
| */ |
| |
| JSONPPolling.prototype.ready = function (socket, fn) { |
| var self = this; |
| if (!indicator) return fn.call(this); |
| |
| io.util.load(function () { |
| fn.call(self); |
| }); |
| }; |
| |
| /** |
| * Checks if browser supports this transport. |
| * |
| * @return {Boolean} |
| * @api public |
| */ |
| |
| JSONPPolling.check = function () { |
| return 'document' in global; |
| }; |
| |
| /** |
| * 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 |
| ); |
| |
| if (typeof define === "function" && define.amd) { |
| define([], function () { return io; }); |
| } else { |
| return io; |
| } |
| |
| })(window); |