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/*! Socket.IO.js build:0.9.6, development. Copyright(c) 2011 LearnBoost MIT Licensed */
/**
* socket.io
* Copyright(c) 2011 LearnBoost
* MIT Licensed
*/
(function (exports, global) {
/**
* IO namespace.
*
* @namespace
*/
var io = exports;
/**
* Socket.IO version
*
* @api public
*/
io.version = '0.9.6';
/**
* 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 : (this.io = {}), this);
/**
* socket.io
* Copyright(c) 2011 LearnBoost
* MIT Licensed
*/
(function (exports, global) {
/**
* Utilities namespace.
*
* @namespace
*/
var util = exports.util = {};
/**
* Parses an URI
*
* @author Steven Levithan (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) {
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);
})('undefined' != typeof io ? io : module.exports, this);
/**
* socket.io
* Copyright(c) 2011 LearnBoost
* MIT Licensed
*/
(function (exports, io) {
/**
* Expose constructor.
*/
exports.EventEmitter = EventEmitter;
/**
* Event emitter constructor.
*
* @api public.
*/
function EventEmitter () {};
/**
* Adds a listener
*
* @api public
*/
EventEmitter.prototype.on = function (name, fn) {
if (!this.$events) {
this.$events = {};
}
if (!this.$events[name]) {
this.$events[name] = fn;
} else if (io.util.isArray(this.$events[name])) {
this.$events[name].push(fn);
} else {
this.$events[name] = [this.$events[name], fn];
}
return this;
};
EventEmitter.prototype.addListener = EventEmitter.prototype.on;
/**
* Adds a volatile listener.
*
* @api public
*/
EventEmitter.prototype.once = function (name, fn) {
var self = this;
function on () {
self.removeListener(name, on);
fn.apply(this, arguments);
};
on.listener = fn;
this.on(name, on);
return this;
};
/**
* Removes a listener.
*
* @api public
*/
EventEmitter.prototype.removeListener = function (name, fn) {
if (this.$events && this.$events[name]) {
var list = this.$events[name];
if (io.util.isArray(list)) {
var pos = -1;
for (var i = 0, l = list.length; i < l; i++) {
if (list[i] === fn || (list[i].listener && list[i].listener === fn)) {
pos = i;
break;
}
}
if (pos < 0) {
return this;
}
list.splice(pos, 1);
if (!list.length) {
delete this.$events[name];
}
} else if (list === fn || (list.listener && list.listener === fn)) {
delete this.$events[name];
}
}
return this;
};
/**
* Removes all listeners for an event.
*
* @api public
*/
EventEmitter.prototype.removeAllListeners = function (name) {
// TODO: enable this when node 0.5 is stable
//if (name === undefined) {
//this.$events = {};
//return this;
//}
if (this.$events && this.$events[name]) {
this.$events[name] = null;
}
return this;
};
/**
* Gets all listeners for a certain event.
*
* @api publci
*/
EventEmitter.prototype.listeners = function (name) {
if (!this.$events) {
this.$events = {};
}
if (!this.$events[name]) {
this.$events[name] = [];
}
if (!io.util.isArray(this.$events[name])) {
this.$events[name] = [this.$events[name]];
}
return this.$events[name];
};
/**
* Emits an event.
*
* @api public
*/
EventEmitter.prototype.emit = function (name) {
if (!this.$events) {
return false;
}
var handler = this.$events[name];
if (!handler) {
return false;
}
var args = Array.prototype.slice.call(arguments, 1);
if ('function' == typeof handler) {
handler.apply(this, args);
} else if (io.util.isArray(handler)) {
var listeners = handler.slice();
for (var i = 0, l = listeners.length; i < l; i++) {
listeners[i].apply(this, args);
}
} else {
return false;
}
return true;
};
})(
'undefined' != typeof io ? io : module.exports
, 'undefined' != typeof io ? io : module.parent.exports
);
/**
* socket.io
* Copyright(c) 2011 LearnBoost
* 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
* 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) {
console.log("parser.decodePacket data=" + 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
* MIT Licensed
*/
(function (exports, io) {
/**
* Expose constructor.
*/
exports.Transport = Transport;
/**
* This is the transport template for all supported transport methods.
*
* @constructor
* @api public
*/
function Transport (socket, sessid) {
this.socket = socket;
this.sessid = sessid;
};
/**
* Apply EventEmitter mixin.
*/
io.util.mixin(Transport, io.EventEmitter);
/**
* Handles the response from the server. When a new response is received
* it will automatically update the timeout, decode the message and
* forwards the response to the onMessage function for further processing.
*
* @param {String} data Response from the server.
* @api private
*/
Transport.prototype.onData = function (data) {
this.clearCloseTimeout();
// 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.open = 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.close && this.open) this.close();
this.clearTimeouts();
this.socket.onDisconnect();
return this;
};
/**
* Called when transport connects
*
* @api private
*/
Transport.prototype.onConnect = function () {
this.socket.onConnect();
return this;
}
/**
* Clears close timeout
*
* @api private
*/
Transport.prototype.clearCloseTimeout = function () {
if (this.closeTimeout) {
clearTimeout(this.closeTimeout);
this.closeTimeout = null;
}
};
/**
* Clear timeouts
*
* @api private
*/
Transport.prototype.clearTimeouts = function () {
this.clearCloseTimeout();
if (this.reopenTimeout) {
clearTimeout(this.reopenTimeout);
}
};
/**
* Sends a packet
*
* @param {Object} packet object.
* @api private
*/
Transport.prototype.packet = function (packet) {
this.send(io.parser.encodePacket(packet));
};
/**
* Send the received heartbeat message back to server. So the server
* knows we are still connected.
*
* @param {String} heartbeat Heartbeat response from the server.
* @api private
*/
Transport.prototype.onHeartbeat = function (heartbeat) {
this.packet({ type: 'heartbeat' });
};
/**
* Called when the transport opens.
*
* @api private
*/
Transport.prototype.onOpen = function () {
this.open = true;
this.clearCloseTimeout();
this.socket.onOpen();
};
/**
* Notifies the base when the connection with the Socket.IO server
* has been disconnected.
*
* @api private
*/
Transport.prototype.onClose = function () {
var self = this;
/* FIXME: reopen delay causing a infinit loop
this.reopenTimeout = setTimeout(function () {
self.open();
}, this.socket.options['reopen delay']);*/
this.open = false;
this.socket.onClose();
this.onDisconnect();
};
/**
* Generates a connection url based on the Socket.IO URL Protocol.
* See 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
* MIT Licensed
*/
(function (exports, io, global) {
/**
* 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': true
, 'auto connect': true
, 'flash policy port': 10843
};
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, 'unload', function () {
self.disconnectSync();
}, false);
}
if (this.options['auto connect']) {
this.connect();
}
};
/**
* Apply EventEmitter mixin.
*/
io.util.mixin(Socket, io.EventEmitter);
/**
* Returns a namespace listener/emitter for this socket
*
* @api public
*/
Socket.prototype.of = function (name) {
if (!this.namespaces[name]) {
this.namespaces[name] = new io.SocketNamespace(this, name);
if (name !== '') {
this.namespaces[name].packet({ type: 'connect' });
}
}
return this.namespaces[name];
};
/**
* Emits the given event to the Socket and all namespaces
*
* @api private
*/
Socket.prototype.publish = function () {
this.emit.apply(this, arguments);
var nsp;
for (var i in this.namespaces) {
if (this.namespaces.hasOwnProperty(i)) {
nsp = this.of(i);
nsp.$emit.apply(nsp, arguments);
}
}
};
/**
* Performs the handshake
*
* @api private
*/
function empty () { };
Socket.prototype.handshake = function (fn) {
var self = this
, options = this.options;
function complete (data) {
if (data instanceof Error) {
self.onError(data.message);
} else {
fn.apply(null, data.split(':'));
}
};
var url = [
'http' + (options.secure ? 's' : '') + ':/'
, options.host + ':' + options.port
, 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);
xhr.withCredentials = true;
xhr.onreadystatechange = function () {
if (xhr.readyState == 4) {
xhr.onreadystatechange = empty;
if (xhr.status == 200) {
console.log("xhr.responseText=" + xhr.responseText);
complete(xhr.responseText);
} else {
!self.reconnecting && self.onError(xhr.responseText);
}
}
};
xhr.send(null);
}
};
/**
* Find an available transport based on the options supplied in the constructor.
*
* @api private
*/
Socket.prototype.getTransport = function (override) {
var transports = override || this.transports, match;
for (var i = 0, transport; transport = transports[i]; i++) {
if (io.Transport[transport]
&& io.Transport[transport].check(this)
&& (!this.isXDomain() || io.Transport[transport].xdomainCheck())) {
return new io.Transport[transport](this, this.sessionid);
}
}
return null;
};
/**
* Connects to the server.
*
* @param {Function} [fn] Callback.
* @returns {io.Socket}
* @api public
*/
Socket.prototype.connect = function (fn) {
if (this.connecting) {
return this;
}
var self = this;
self.connecting = true;
this.handshake(function (sid, heartbeat, close, transports) {
self.sessionid = sid;
self.closeTimeout = close * 1000;
self.heartbeatTimeout = heartbeat * 1000;
self.transports = 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']) {
if (!self.remainingTransports) {
self.remainingTransports = self.transports.slice(0);
}
var remaining = self.remainingTransports;
while (remaining.length > 0 && remaining.splice(0,1)[0] !=
self.transport.name) {}
if (remaining.length){
connect(remaining);
} else {
self.publish('connect_failed');
}
}
}
}, self.options['connect timeout']);
}
});
}
connect(self.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);
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) {
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()
, uri = this.resource + '/' + io.protocol + '/' + this.sessionid;
xhr.open('GET', uri, true);
// handle disconnection immediately
this.onDisconnect('booted');
};
/**
* Check if we need to use cross domain enabled transports. Cross domain would
* be a different port or different domain name.
*
* @returns {Boolean}
* @api private
*/
Socket.prototype.isXDomain = function () {
var 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.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
, this
);
/**
* socket.io
* Copyright(c) 2011 LearnBoost
* 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
* MIT Licensed
*/
(function (exports, io, global) {
/**
* 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;
}
console.log("WS open url=" + this.prepareUrl() + query);
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
*/
WS.prototype.send = function (data) {
console.log("WS sending=" + 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
, this
);
/**
* socket.io
* Copyright(c) 2011 LearnBoost
* 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
is released under the MIT License
*/
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+)?).*$/,"$1")):false,X=!+"\v1",ag=[0,0,0],ab=null;if(typeof t.plugins!=D&&typeof t.plugins[S]==r){ab=t.plugins[S].description;if(ab&&!(typeof t.mimeTypes!=D&&t.mimeTypes[q]&&!t.mimeTypes[q].enabledPlugin)){T=true;X=false;ab=ab.replace(/^.*\s+(\S+\s+\S+$)/,"$1");ag[0]=parseInt(ab.replace(/^(.*)\..*$/,"$1"),10);ag[1]=parseInt(ab.replace(/^.*\.(.*)\s.*$/,"$1"),10);ag[2]=/[a-zA-Z]/.test(ab)?parseInt(ab.replace(/^.*[a-zA-Z]+(.*)$/,"$1"),10):0}}else{if(typeof O[(['Active'].concat('Object').join('X'))]!=D){try{var ad=new window[(['Active'].concat('Object').join('X'))](W);if(ad){ab=ad.GetVariable("$version");if(ab){X=true;ab=ab.split(" ")[1].split(",");ag=[parseInt(ab[0],10),parseInt(ab[1],10),parseInt(ab[2],10)]}}}catch(Z){}}}return{w3:aa,pv:ag,wk:af,ie:X,win:ae,mac:ac}}(),k=function(){if(!M.w3){return}if((typeof j.readyState!=D&&j.readyState=="complete")||(typeof j.readyState==D&&(j.getElementsByTagName("body")[0]||j.body))){f()}if(!J){if(typeof j.addEventListener!=D){j.addEventListener("DOMContentLoaded",f,false)}if(M.ie&&M.win){j.attachEvent(x,function(){if(j.readyState=="complete"){j.detachEvent(x,arguments.callee);f()}});if(O==top){(function(){if(J){return}try{j.documentElement.doScroll("left")}catch(X){setTimeout(arguments.callee,0);return}f()})()}}if(M.wk){(function(){if(J){return}if(!/loaded|complete/.test(j.readyState)){setTimeout(arguments.callee,0);return}f()})()}s(f)}}();function f(){if(J){return}try{var Z=j.getElementsByTagName("body")[0].appendChild(C("span"));Z.parentNode.removeChild(Z)}catch(aa){return}J=true;var X=U.length;for(var Y=0;Y0){for(var af=0;af0){var ae=c(Y);if(ae){if(F(o[af].swfVersion)&&!(M.wk&&M.wk<312)){w(Y,true);if(ab){aa.success=true;aa.ref=z(Y);ab(aa)}}else{if(o[af].expressInstall&&A()){var ai={};ai.data=o[af].expressInstall;ai.width=ae.getAttribute("width")||"0";ai.height=ae.getAttribute("height")||"0";if(ae.getAttribute("class")){ai.styleclass=ae.getAttribute("class")}if(ae.getAttribute("align")){ai.align=ae.getAttribute("align")}var ah={};var X=ae.getElementsByTagName("param");var ac=X.length;for(var ad=0;ad'}}aa.outerHTML='";N[N.length]=ai.id;X=c(ai.id)}else{var Z=C(r);Z.setAttribute("type",q);for(var ac in ai){if(ai[ac]!=Object.prototype[ac]){if(ac.toLowerCase()=="styleclass"){Z.setAttribute("class",ai[ac])}else{if(ac.toLowerCase()!="classid"){Z.setAttribute(ac,ai[ac])}}}}for(var ab in ag){if(ag[ab]!=Object.prototype[ab]&&ab.toLowerCase()!="movie"){e(Z,ab,ag[ab])}}aa.parentNode.replaceChild(Z,aa);X=Z}}return X}function e(Z,X,Y){var aa=C("param");aa.setAttribute("name",X);aa.setAttribute("value",Y);Z.appendChild(aa)}function y(Y){var X=c(Y);if(X&&X.nodeName=="OBJECT"){if(M.ie&&M.win){X.style.display="none";(function(){if(X.readyState==4){b(Y)}else{setTimeout(arguments.callee,10)}})()}else{X.parentNode.removeChild(X)}}}function b(Z){var Y=c(Z);if(Y){for(var X in Y){if(typeof Y[X]=="function"){Y[X]=null}}Y.parentNode.removeChild(Y)}}function c(Z){var X=null;try{X=j.getElementById(Z)}catch(Y){}return X}function C(X){return j.createElement(X)}function i(Z,X,Y){Z.attachEvent(X,Y);I[I.length]=[Z,X,Y]}function F(Z){var Y=M.pv,X=Z.split(".");X[0]=parseInt(X[0],10);X[1]=parseInt(X[1],10)||0;X[2]=parseInt(X[2],10)||0;return(Y[0]>X[0]||(Y[0]==X[0]&&Y[1]>X[1])||(Y[0]==X[0]&&Y[1]==X[1]&&Y[2]>=X[2]))?true:false}function v(ac,Y,ad,ab){if(M.ie&&M.mac){return}var aa=j.getElementsByTagName("head")[0];if(!aa){return}var X=(ad&&typeof ad=="string")?ad:"screen";if(ab){n=null;G=null}if(!n||G!=X){var Z=C("style");Z.setAttribute("type","text/css");Z.setAttribute("media",X);n=aa.appendChild(Z);if(M.ie&&M.win&&typeof j.styleSheets!=D&&j.styleSheets.length>0){n=j.styleSheets[j.styleSheets.length-1]}G=X}if(M.ie&&M.win){if(n&&typeof n.addRule==r){n.addRule(ac,Y)}}else{if(n&&typeof j.createTextNode!=D){n.appendChild(j.createTextNode(ac+" {"+Y+"}"))}}}function w(Z,X){if(!m){return}var Y=X?"visible":"hidden";if(J&&c(Z)){c(Z).style.visibility=Y}else{v("#"+Z,"visibility:"+Y)}}function L(Y){var Z=/[\\\"<>\.;]/;var X=Z.exec(Y)!=null;return X&&typeof encodeURIComponent!=D?encodeURIComponent(Y):Y}var d=function(){if(M.ie&&M.win){window.attachEvent("onunload",function(){var ac=I.length;for(var ab=0;ab
// 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 DOM 2 EventTarget Interface}
*
* @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 DOM 2 EventTarget Interface}
*
* @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 DOM 2 EventTarget Interface}
*
* @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
* MIT Licensed
*/
(function (exports, io, global) {
/**
* 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) {
console.log("XHR sending=" + 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 = (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 () {
return XHR.check(null, true);
};
})(
'undefined' != typeof io ? io.Transport : module.exports
, 'undefined' != typeof io ? io : module.parent.exports
, this
);
/**
* socket.io
* Copyright(c) 2011 LearnBoost
* 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('');
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 () {
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();
} 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
* MIT Licensed
*/
(function (exports, io, global) {
/**
* 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';
/**
* 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.open) return;
var self = this;
function stateChange () {
if (this.readyState == 4) {
this.onreadystatechange = empty;
if (this.status == 200) {
self.onData(this.responseText);
self.get();
} else {
self.onClose();
}
}
};
function onload () {
this.onload = empty;
this.onerror = empty;
self.onData(this.responseText);
self.get();
};
function onerror () {
self.onClose();
};
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
, this
);
/**
* socket.io
* Copyright(c) 2011 LearnBoost
* MIT Licensed
*/
(function (exports, io, global) {
/**
* 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('
