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socketapp that uses Redis PubSub to send messages with tornadio2 to a…

… socket.
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commit 7c2fb4dab385f2d5c8b61936ea830492c73ef2d9 1 parent c333670
@peterbe authored
View
3  .gitmodules
@@ -7,3 +7,6 @@
[submodule "vendor/src/tornado"]
path = vendor/src/tornado
url = git://github.com/facebook/tornado.git
+[submodule "vendor/src/tornadio2"]
+ path = vendor/src/tornadio2
+ url = git://github.com/MrJoes/tornadio2.git
View
13 handlers.py
@@ -185,8 +185,9 @@ def increment_lookup_count(self, username, usernames, jsonp=False):
key = 'lookups:json'
if not isinstance(usernames, int):
usernames = len(usernames)
- self.redis.incr(key)
-
+ self.redis.publish('lookups', tornado.escape.json_encode({
+ key: int(self.redis.get(key))
+ }))
key = 'lookups:username:%s' % username
assert username
self.redis.incr(key)
@@ -194,6 +195,11 @@ def increment_lookup_count(self, username, usernames, jsonp=False):
key = 'lookups:usernames'
self.redis.incr(key, usernames)
+ self.redis.publish('lookups', tornado.escape.json_encode({
+ key: int(self.redis.get(key))
+
+ }))
+
@tornado.web.asynchronous
@tornado.gen.engine
def get(self):
@@ -359,6 +365,9 @@ def increment_authentication_count(self, username):
self.redis.incr(key)
key = 'auths:total'
self.redis.incr(key)
+ self.redis.publish('lookups', tornado.escape.json_encode({
+ key: int(self.redis.get(key))
+ }))
@tornado.web.asynchronous
def get(self):
View
104 socketapp.py
@@ -0,0 +1,104 @@
+#!/usr/bin/env python
+import os
+import re
+import here
+import logging
+from pprint import pprint
+import tornado.escape
+import redis.client
+import tornado.options
+from tornado.options import define, options
+import settings
+
+from tornadio2 import SocketConnection, TornadioRouter, SocketServer, event
+
+define("debug", default=False, help="run in debug mode", type=bool)
+define("port", default=8888, help="run on the given port (default 8888)", type=int)
+
+
+class LookupsConnection(SocketConnection):
+ connected_clients = set()
+ def on_open(self, request):
+ #print "OPEN"
+ for each in self.connected_clients:
+ each.send({'message': "Someone connected!"})
+ self.connected_clients.add(self)
+
+ def on_message(self, message):
+ logging.debug("RECEIVED: %r" % message)
+ for client in self.connected_clients:
+ if client != self:
+ #print "CLIENT", repr(client)
+ #print "\t", client.is_closed
+ if client.is_closed:
+ print "DBG consider deleting", repr(client)
+ else:
+ client.send({'message': message.upper()})
+
+ def on_close(self):
+ logging.debug("Closing client")
+ if self in self.connected_clients:
+ logging.debug("Removing %r" % self)
+ self.connected_clients.remove(self)
+
+
+def redis_listener():
+ r = redis.Redis(settings.REDIS_HOST, settings.REDIS_PORT)
+ ps = r.pubsub()
+ ps.subscribe(['lookups'])
+ for message in ps.listen():
+ try:
+ data = tornado.escape.json_decode(message['data'])
+ except ValueError:
+ data = message['data']
+
+ #print "****MESSAGE"
+ #pprint(data)
+ #print "\t send this to", len(LookupsConnection.connected_clients), 'clients'
+ to_send = {}
+ for key, value in data.items():
+ new_key = {
+ 'lookups:json': 'lookups_json',
+ 'lookups:jsonp': 'lookups_jsonp',
+ 'auths:total': 'auths',
+ 'lookups:usernames': 'lookups_usernames'
+ }.get(key)
+ if new_key is None:
+ print "Skipping", repr(key)
+ continue
+ #print new_key, repr(value)
+ to_send[new_key] = value
+
+ for client in LookupsConnection.connected_clients:
+ client.send(to_send)
+
+
+
+def main():
+ import threading
+ t = threading.Thread(target=redis_listener)
+ t.setDaemon(True)
+ t.start()
+
+ LookupsServer = TornadioRouter(LookupsConnection)
+ # Fill your routes here
+ routes = []
+ # Extend list of routes with Tornadio2 URLs
+ routes.extend(LookupsServer.urls)
+
+ tornado.options.parse_command_line()
+ if options.debug:
+ logging.getLogger().setLevel(logging.DEBUG)
+ else:
+ logging.getLogger().setLevel(logging.INFO)
+
+ application = tornado.web.Application(routes,
+ socket_io_port=options.port)
+ try:
+ SocketServer(application)
+ except KeyboardInterrupt:
+ pass
+
+
+if __name__ == "__main__":
+ main()
View
68 static/js/lookups.js
@@ -66,53 +66,68 @@ function _set_up_charts(numbers) {
height:300,
lineWidth:3
};
- if (chart_jsons === null) {
+ if (chart_jsons === null && numbers.lookups_json) {
var p = new cloneObject(options);
p.title = 'Twitter requests by JSON';
chart_jsons = new Chart('chart-jsons', p);
}
- if (chart_jsonps === null) {
+ if (chart_jsonps === null && numbers.lookups_jsonp) {
var p = new cloneObject(options);
p.title = 'Twitter requests by JSONP';
chart_jsonps = new Chart('chart-jsonps', p);
}
- if (chart_usernames === null) {
+ if (chart_usernames === null && numbers.lookups_usernames) {
var p = new cloneObject(options);
p.title = 'Total number of usernames looked up';
p.series = [{color: 'green'}];
chart_usernames = new Chart('chart-usernames', p);
}
- if (chart_auths === null) {
+ if (chart_auths === null && numbers.auths) {
var p = new cloneObject(options);
p.title = 'Authentications';
p.series = [{color: 'red'}];
chart_auths = new Chart('chart-auths', p);
}
- chart_jsons.add_value(numbers.lookups_json);
- chart_jsonps.add_value(numbers.lookups_jsonp);
- chart_usernames.add_value(numbers.lookups_usernames);
- chart_auths.add_value(numbers.auths);
+ if (numbers.lookups_json)
+ chart_jsons.add_value(numbers.lookups_json);
+ if (numbers.lookups_jsonp)
+ chart_jsonps.add_value(numbers.lookups_jsonp);
+ if (numbers.lookups_usernames)
+ chart_usernames.add_value(numbers.lookups_usernames);
+ if (numbers.auths)
+ chart_auths.add_value(numbers.auths);
}
-function update() {
- function incr_number(key, num) {
- var before = $(key).text();
- if (before !== '' + tsep(num)) {
- // there's a change!
- $(key).fadeTo(200, 0.1, function() {
- $(this).text(tsep(num)).fadeTo(300, 1.0);
- });
- }
+function incr_number(key, num) {
+ var before = $(key).text();
+ if (before !== '' + tsep(num)) {
+ // there's a change!
+ $(key).fadeTo(200, 0.1, function() {
+ $(this).text(tsep(num)).fadeTo(300, 1.0);
+ });
}
+}
- $.getJSON(JSON_URL, function(response) {
+function process_response(response) {
+ if (response.lookups_json && response.lookups_jsonp)
incr_number('#lookups-total', response.lookups_json + response.lookups_jsonp);
+ if (response.lookups_json)
incr_number('#lookups-json', response.lookups_json);
+ if (response.lookups_jsonp)
incr_number('#lookups-jsonp', response.lookups_jsonp);
+ if (response.lookups_usernames)
incr_number('#lookups-usernames', response.lookups_usernames);
+ if (response.auths)
incr_number('#auths', response.auths);
+ _set_up_charts(response);
+}
+
+/*
+function update() {
+ $.getJSON(JSON_URL, function(response) {
+ process_response(response);
var change = !compareAssociativeArrays(response, previous);
previous = response;
@@ -128,7 +143,22 @@ function update() {
setTimeout(update, Math.ceil(t * 1000));
});
}
+*/
+
+window.WEB_SOCKET_DEBUG = true;
+function setupSocket() {
+ var socket = new io.connect('http://' + window.location.host, {
+ port: 8888
+ });
+
+ socket.on('connect', function() {
+ socket.on('message', function(msg) {
+ process_response(msg);
+ });
+
+ });
+}
$(function() {
- setTimeout(update, 5 * 1000);
+ setupSocket();
});
View
3,750 static/js/socket.io.js
@@ -0,0 +1,3750 @@
+/*! Socket.IO.js build:0.8.7, development. Copyright(c) 2011 LearnBoost <dev@learnboost.com> MIT Licensed */
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, global) {
+
+ /**
+ * IO namespace.
+ *
+ * @namespace
+ */
+
+ var io = exports;
+
+ /**
+ * Socket.IO version
+ *
+ * @api public
+ */
+
+ io.version = '0.8.7';
+
+ /**
+ * 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 <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, global) {
+
+ /**
+ * 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]] = decodeURIComponent(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 ActiveXObject('Microsoft.XMLHTTP');
+ } catch(e) { }
+ }
+
+ return null;
+ };
+
+ /**
+ * XHR based transport constructor.
+ *
+ * @constructor
+ * @api public
+ */
+
+ /**
+ * Change the internal pageLoaded value.
+ */
+
+ if ('undefined' != typeof window) {
+ util.load(function () {
+ pageLoaded = true;
+ });
+ }
+
+ /**
+ * Defers a function to ensure a spinner is not displayed by the browser
+ *
+ * @param {Function} fn
+ * @api public
+ */
+
+ util.defer = function (fn) {
+ if (!util.ua.webkit || '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) {
+ if (Array.prototype.indexOf) {
+ return Array.prototype.indexOf.call(arr, o, i);
+ }
+
+ for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0;
+ i < j && arr[i] !== o; i++) {}
+
+ return j <= i ? -1 : i;
+ };
+
+ /**
+ * Converts enumerables to array.
+ *
+ * @api public
+ */
+
+ util.toArray = function (enu) {
+ var arr = [];
+
+ for (var i = 0, l = enu.length; i < l; i++)
+ arr.push(enu[i]);
+
+ return arr;
+ };
+
+ /**
+ * UA / engines detection namespace.
+ *
+ * @namespace
+ */
+
+ util.ua = {};
+
+ /**
+ * Whether the UA supports CORS for XHR.
+ *
+ * @api public
+ */
+
+ util.ua.hasCORS = 'undefined' != typeof 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 <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Expose constructor.
+ */
+
+ exports.EventEmitter = EventEmitter;
+
+ /**
+ * Event emitter constructor.
+ *
+ * @api public.
+ */
+
+ function EventEmitter () {};
+
+ /**
+ * Adds a listener
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.on = function (name, fn) {
+ if (!this.$events) {
+ this.$events = {};
+ }
+
+ if (!this.$events[name]) {
+ this.$events[name] = fn;
+ } else if (io.util.isArray(this.$events[name])) {
+ this.$events[name].push(fn);
+ } else {
+ this.$events[name] = [this.$events[name], fn];
+ }
+
+ return this;
+ };
+
+ EventEmitter.prototype.addListener = EventEmitter.prototype.on;
+
+ /**
+ * Adds a volatile listener.
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.once = function (name, fn) {
+ var self = this;
+
+ function on () {
+ self.removeListener(name, on);
+ fn.apply(this, arguments);
+ };
+
+ on.listener = fn;
+ this.on(name, on);
+
+ return this;
+ };
+
+ /**
+ * Removes a listener.
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.removeListener = function (name, fn) {
+ if (this.$events && this.$events[name]) {
+ var list = this.$events[name];
+
+ if (io.util.isArray(list)) {
+ var pos = -1;
+
+ for (var i = 0, l = list.length; i < l; i++) {
+ if (list[i] === fn || (list[i].listener && list[i].listener === fn)) {
+ pos = i;
+ break;
+ }
+ }
+
+ if (pos < 0) {
+ return this;
+ }
+
+ list.splice(pos, 1);
+
+ if (!list.length) {
+ delete this.$events[name];
+ }
+ } else if (list === fn || (list.listener && list.listener === fn)) {
+ delete this.$events[name];
+ }
+ }
+
+ return this;
+ };
+
+ /**
+ * Removes all listeners for an event.
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.removeAllListeners = function (name) {
+ // TODO: enable this when node 0.5 is stable
+ //if (name === undefined) {
+ //this.$events = {};
+ //return this;
+ //}
+
+ if (this.$events && this.$events[name]) {
+ this.$events[name] = null;
+ }
+
+ return this;
+ };
+
+ /**
+ * Gets all listeners for a certain event.
+ *
+ * @api publci
+ */
+
+ EventEmitter.prototype.listeners = function (name) {
+ if (!this.$events) {
+ this.$events = {};
+ }
+
+ if (!this.$events[name]) {
+ this.$events[name] = [];
+ }
+
+ if (!io.util.isArray(this.$events[name])) {
+ this.$events[name] = [this.$events[name]];
+ }
+
+ return this.$events[name];
+ };
+
+ /**
+ * Emits an event.
+ *
+ * @api public
+ */
+
+ EventEmitter.prototype.emit = function (name) {
+ if (!this.$events) {
+ return false;
+ }
+
+ var handler = this.$events[name];
+
+ if (!handler) {
+ return false;
+ }
+
+ var args = Array.prototype.slice.call(arguments, 1);
+
+ if ('function' == typeof handler) {
+ handler.apply(this, args);
+ } else if (io.util.isArray(handler)) {
+ var listeners = handler.slice();
+
+ for (var i = 0, l = listeners.length; i < l; i++) {
+ listeners[i].apply(this, args);
+ }
+ } else {
+ return false;
+ }
+
+ return true;
+ };
+
+})(
+ 'undefined' != typeof io ? io : module.exports
+ , 'undefined' != typeof io ? io : module.parent.exports
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+/**
+ * Based on JSON2 (http://www.JSON.org/js.html).
+ */
+
+(function (exports, nativeJSON) {
+ "use strict";
+
+ // use native JSON if it's available
+ if (nativeJSON && nativeJSON.parse){
+ return exports.JSON = {
+ parse: nativeJSON.parse
+ , stringify: nativeJSON.stringify
+ }
+ }
+
+ var JSON = exports.JSON = {};
+
+ function f(n) {
+ // Format integers to have at least two digits.
+ return n < 10 ? '0' + n : n;
+ }
+
+ function date(d, key) {
+ return isFinite(d.valueOf()) ?
+ d.getUTCFullYear() + '-' +
+ f(d.getUTCMonth() + 1) + '-' +
+ f(d.getUTCDate()) + 'T' +
+ f(d.getUTCHours()) + ':' +
+ f(d.getUTCMinutes()) + ':' +
+ f(d.getUTCSeconds()) + 'Z' : null;
+ };
+
+ var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+ escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+ gap,
+ indent,
+ meta = { // table of character substitutions
+ '\b': '\\b',
+ '\t': '\\t',
+ '\n': '\\n',
+ '\f': '\\f',
+ '\r': '\\r',
+ '"' : '\\"',
+ '\\': '\\\\'
+ },
+ rep;
+
+
+ function quote(string) {
+
+// If the string contains no control characters, no quote characters, and no
+// backslash characters, then we can safely slap some quotes around it.
+// Otherwise we must also replace the offending characters with safe escape
+// sequences.
+
+ escapable.lastIndex = 0;
+ return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
+ var c = meta[a];
+ return typeof c === 'string' ? c :
+ '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
+ }) + '"' : '"' + string + '"';
+ }
+
+
+ function str(key, holder) {
+
+// Produce a string from holder[key].
+
+ var i, // The loop counter.
+ k, // The member key.
+ v, // The member value.
+ length,
+ mind = gap,
+ partial,
+ value = holder[key];
+
+// If the value has a toJSON method, call it to obtain a replacement value.
+
+ if (value instanceof Date) {
+ value = date(key);
+ }
+
+// If we were called with a replacer function, then call the replacer to
+// obtain a replacement value.
+
+ if (typeof rep === 'function') {
+ value = rep.call(holder, key, value);
+ }
+
+// What happens next depends on the value's type.
+
+ switch (typeof value) {
+ case 'string':
+ return quote(value);
+
+ case 'number':
+
+// JSON numbers must be finite. Encode non-finite numbers as null.
+
+ return isFinite(value) ? String(value) : 'null';
+
+ case 'boolean':
+ case 'null':
+
+// If the value is a boolean or null, convert it to a string. Note:
+// typeof null does not produce 'null'. The case is included here in
+// the remote chance that this gets fixed someday.
+
+ return String(value);
+
+// If the type is 'object', we might be dealing with an object or an array or
+// null.
+
+ case 'object':
+
+// Due to a specification blunder in ECMAScript, typeof null is 'object',
+// so watch out for that case.
+
+ if (!value) {
+ return 'null';
+ }
+
+// Make an array to hold the partial results of stringifying this object value.
+
+ gap += indent;
+ partial = [];
+
+// Is the value an array?
+
+ if (Object.prototype.toString.apply(value) === '[object Array]') {
+
+// The value is an array. Stringify every element. Use null as a placeholder
+// for non-JSON values.
+
+ length = value.length;
+ for (i = 0; i < length; i += 1) {
+ partial[i] = str(i, value) || 'null';
+ }
+
+// Join all of the elements together, separated with commas, and wrap them in
+// brackets.
+
+ v = partial.length === 0 ? '[]' : gap ?
+ '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
+ '[' + partial.join(',') + ']';
+ gap = mind;
+ return v;
+ }
+
+// If the replacer is an array, use it to select the members to be stringified.
+
+ if (rep && typeof rep === 'object') {
+ length = rep.length;
+ for (i = 0; i < length; i += 1) {
+ if (typeof rep[i] === 'string') {
+ k = rep[i];
+ v = str(k, value);
+ if (v) {
+ partial.push(quote(k) + (gap ? ': ' : ':') + v);
+ }
+ }
+ }
+ } else {
+
+// Otherwise, iterate through all of the keys in the object.
+
+ for (k in value) {
+ if (Object.prototype.hasOwnProperty.call(value, k)) {
+ v = str(k, value);
+ if (v) {
+ partial.push(quote(k) + (gap ? ': ' : ':') + v);
+ }
+ }
+ }
+ }
+
+// Join all of the member texts together, separated with commas,
+// and wrap them in braces.
+
+ v = partial.length === 0 ? '{}' : gap ?
+ '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
+ '{' + partial.join(',') + '}';
+ gap = mind;
+ return v;
+ }
+ }
+
+// If the JSON object does not yet have a stringify method, give it one.
+
+ JSON.stringify = function (value, replacer, space) {
+
+// The stringify method takes a value and an optional replacer, and an optional
+// space parameter, and returns a JSON text. The replacer can be a function
+// that can replace values, or an array of strings that will select the keys.
+// A default replacer method can be provided. Use of the space parameter can
+// produce text that is more easily readable.
+
+ var i;
+ gap = '';
+ indent = '';
+
+// If the space parameter is a number, make an indent string containing that
+// many spaces.
+
+ if (typeof space === 'number') {
+ for (i = 0; i < space; i += 1) {
+ indent += ' ';
+ }
+
+// If the space parameter is a string, it will be used as the indent string.
+
+ } else if (typeof space === 'string') {
+ indent = space;
+ }
+
+// If there is a replacer, it must be a function or an array.
+// Otherwise, throw an error.
+
+ rep = replacer;
+ if (replacer && typeof replacer !== 'function' &&
+ (typeof replacer !== 'object' ||
+ typeof replacer.length !== 'number')) {
+ throw new Error('JSON.stringify');
+ }
+
+// Make a fake root object containing our value under the key of ''.
+// Return the result of stringifying the value.
+
+ return str('', {'': value});
+ };
+
+// If the JSON object does not yet have a parse method, give it one.
+
+ JSON.parse = function (text, reviver) {
+ // The parse method takes a text and an optional reviver function, and returns
+ // a JavaScript value if the text is a valid JSON text.
+
+ var j;
+
+ function walk(holder, key) {
+
+ // The walk method is used to recursively walk the resulting structure so
+ // that modifications can be made.
+
+ var k, v, value = holder[key];
+ if (value && typeof value === 'object') {
+ for (k in value) {
+ if (Object.prototype.hasOwnProperty.call(value, k)) {
+ v = walk(value, k);
+ if (v !== undefined) {
+ value[k] = v;
+ } else {
+ delete value[k];
+ }
+ }
+ }
+ }
+ return reviver.call(holder, key, value);
+ }
+
+
+ // Parsing happens in four stages. In the first stage, we replace certain
+ // Unicode characters with escape sequences. JavaScript handles many characters
+ // incorrectly, either silently deleting them, or treating them as line endings.
+
+ text = String(text);
+ cx.lastIndex = 0;
+ if (cx.test(text)) {
+ text = text.replace(cx, function (a) {
+ return '\\u' +
+ ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
+ });
+ }
+
+ // In the second stage, we run the text against regular expressions that look
+ // for non-JSON patterns. We are especially concerned with '()' and 'new'
+ // because they can cause invocation, and '=' because it can cause mutation.
+ // But just to be safe, we want to reject all unexpected forms.
+
+ // We split the second stage into 4 regexp operations in order to work around
+ // crippling inefficiencies in IE's and Safari's regexp engines. First we
+ // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
+ // replace all simple value tokens with ']' characters. Third, we delete all
+ // open brackets that follow a colon or comma or that begin the text. Finally,
+ // we look to see that the remaining characters are only whitespace or ']' or
+ // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
+
+ if (/^[\],:{}\s]*$/
+ .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
+ .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
+ .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
+
+ // In the third stage we use the eval function to compile the text into a
+ // JavaScript structure. The '{' operator is subject to a syntactic ambiguity
+ // in JavaScript: it can begin a block or an object literal. We wrap the text
+ // in parens to eliminate the ambiguity.
+
+ j = eval('(' + text + ')');
+
+ // In the optional fourth stage, we recursively walk the new structure, passing
+ // each name/value pair to a reviver function for possible transformation.
+
+ return typeof reviver === 'function' ?
+ walk({'': j}, '') : j;
+ }
+
+ // If the text is not JSON parseable, then a SyntaxError is thrown.
+
+ throw new SyntaxError('JSON.parse');
+ };
+
+})(
+ 'undefined' != typeof io ? io : module.exports
+ , typeof JSON !== 'undefined' ? JSON : undefined
+);
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+ /**
+ * Parser namespace.
+ *
+ * @namespace
+ */
+
+ var parser = exports.parser = {};
+
+ /**
+ * Packet types.
+ */
+
+ var packets = parser.packets = [
+ 'disconnect'
+ , 'connect'
+ , 'heartbeat'
+ , 'message'
+ , 'json'
+ , 'event'
+ , 'ack'
+ , 'error'
+ , 'noop'
+ ];
+
+ /**
+ * Errors reasons.
+ */
+
+ var reasons = parser.reasons = [
+ 'transport not supported'
+ , 'client not handshaken'
+ , 'unauthorized'
+ ];
+
+ /**
+ * Errors advice.
+ */
+
+ var advice = parser.advice = [
+ 'reconnect'
+ ];
+
+ /**
+ * Shortcuts.
+ */
+
+ var JSON = io.JSON
+ , indexOf = io.util.indexOf;
+
+ /**
+ * Encodes a packet.
+ *
+ * @api private
+ */
+
+ parser.encodePacket = function (packet) {
+ var type = indexOf(packets, packet.type)
+ , id = packet.id || ''
+ , endpoint = packet.endpoint || ''
+ , ack = packet.ack
+ , data = null;
+
+ switch (packet.type) {
+ case 'error':
+ var reason = packet.reason ? indexOf(reasons, packet.reason) : ''
+ , adv = packet.advice ? indexOf(advice, packet.advice) : '';
+
+ if (reason !== '' || adv !== '')
+ data = reason + (adv !== '' ? ('+' + adv) : '');
+
+ break;
+
+ case 'message':
+ if (packet.data !== '')
+ data = packet.data;
+ break;
+
+ case 'event':
+ var ev = { name: packet.name };
+
+ if (packet.args && packet.args.length) {
+ ev.args = packet.args;
+ }
+
+ data = JSON.stringify(ev);
+ break;
+
+ case 'json':
+ data = JSON.stringify(packet.data);
+ break;
+
+ case 'connect':
+ if (packet.qs)
+ data = packet.qs;
+ break;
+
+ case 'ack':
+ data = packet.ackId
+ + (packet.args && packet.args.length
+ ? '+' + JSON.stringify(packet.args) : '');
+ break;
+ }
+
+ // construct packet with required fragments
+ var encoded = [
+ type
+ , id + (ack == 'data' ? '+' : '')
+ , endpoint
+ ];
+
+ // data fragment is optional
+ if (data !== null && data !== undefined)
+ encoded.push(data);
+
+ return encoded.join(':');
+ };
+
+ /**
+ * Encodes multiple messages (payload).
+ *
+ * @param {Array} messages
+ * @api private
+ */
+
+ parser.encodePayload = function (packets) {
+ var decoded = '';
+
+ if (packets.length == 1)
+ return packets[0];
+
+ for (var i = 0, l = packets.length; i < l; i++) {
+ var packet = packets[i];
+ decoded += '\ufffd' + packet.length + '\ufffd' + packets[i];
+ }
+
+ return decoded;
+ };
+
+ /**
+ * Decodes a packet
+ *
+ * @api private
+ */
+
+ var regexp = /([^:]+):([0-9]+)?(\+)?:([^:]+)?:?([\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);
+
+ /**
+ * 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.connected || this.connecting || this.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) {
+ if (packet.type == 'heartbeat') {
+ return this.onHeartbeat();
+ }
+
+ if (packet.type == 'connect' && packet.endpoint == '') {
+ this.onConnect();
+ }
+
+ this.socket.onPacket(packet);
+
+ return this;
+ };
+
+ /**
+ * Sets close timeout
+ *
+ * @api private
+ */
+
+ Transport.prototype.setCloseTimeout = function () {
+ if (!this.closeTimeout) {
+ var self = this;
+
+ this.closeTimeout = setTimeout(function () {
+ self.onDisconnect();
+ }, this.socket.closeTimeout);
+ }
+ };
+
+ /**
+ * Called when transport disconnects.
+ *
+ * @api private
+ */
+
+ Transport.prototype.onDisconnect = function () {
+ if (this.close && this.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 <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, 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, 'beforeunload', function () {
+ self.disconnectSync();
+ }, false);
+ }
+
+ if (this.options['auto connect']) {
+ this.connect();
+ }
+};
+
+ /**
+ * Apply EventEmitter mixin.
+ */
+
+ io.util.mixin(Socket, io.EventEmitter);
+
+ /**
+ * Returns a namespace listener/emitter for this socket
+ *
+ * @api public
+ */
+
+ Socket.prototype.of = function (name) {
+ if (!this.namespaces[name]) {
+ this.namespaces[name] = new io.SocketNamespace(this, name);
+
+ if (name !== '') {
+ this.namespaces[name].packet({ type: 'connect' });
+ }
+ }
+
+ return this.namespaces[name];
+ };
+
+ /**
+ * Emits the given event to the Socket and all namespaces
+ *
+ * @api private
+ */
+
+ Socket.prototype.publish = function () {
+ this.emit.apply(this, arguments);
+
+ var nsp;
+
+ for (var i in this.namespaces) {
+ if (this.namespaces.hasOwnProperty(i)) {
+ nsp = this.of(i);
+ nsp.$emit.apply(nsp, arguments);
+ }
+ }
+ };
+
+ /**
+ * Performs the handshake
+ *
+ * @api private
+ */
+
+ function empty () { };
+
+ Socket.prototype.handshake = function (fn) {
+ var self = this
+ , options = this.options;
+
+ function complete (data) {
+ if (data instanceof Error) {
+ self.onError(data.message);
+ } else {
+ fn.apply(null, data.split(':'));
+ }
+ };
+
+ var url = [
+ 'http' + (options.secure ? 's' : '') + ':/'
+ , options.host + ':' + options.port
+ , 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.onreadystatechange = function () {
+ if (xhr.readyState == 4) {
+ xhr.onreadystatechange = empty;
+
+ if (xhr.status == 200) {
+ complete(xhr.responseText);
+ } else {
+ !self.reconnecting && self.onError(xhr.responseText);
+ }
+ }
+ };
+ xhr.send(null);
+ }
+ };
+
+ /**
+ * Find an available transport based on the options supplied in the constructor.
+ *
+ * @api private
+ */
+
+ Socket.prototype.getTransport = function (override) {
+ var transports = override || this.transports, match;
+
+ for (var i = 0, transport; transport = transports[i]; i++) {
+ if (io.Transport[transport]
+ && io.Transport[transport].check(this)
+ && (!this.isXDomain() || io.Transport[transport].xdomainCheck())) {
+ return new io.Transport[transport](this, this.sessionid);
+ }
+ }
+
+ return null;
+ };
+
+ /**
+ * Connects to the server.
+ *
+ * @param {Function} [fn] Callback.
+ * @returns {io.Socket}
+ * @api public
+ */
+
+ Socket.prototype.connect = function (fn) {
+ if (this.connecting) {
+ return this;
+ }
+
+ var self = this;
+
+ this.handshake(function (sid, heartbeat, close, transports) {
+ self.sessionid = sid;
+ self.closeTimeout = close * 1000;
+ self.heartbeatTimeout = heartbeat * 1000;
+ self.transports = io.util.intersect(
+ transports.split(',')
+ , self.options.transports
+ );
+
+ function connect (transports){
+ 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.once('connect', function (){
+ clearTimeout(self.connectTimeoutTimer);
+
+ fn && typeof fn == 'function' && fn();
+ });
+ });
+
+ return this;
+ };
+
+ /**
+ * Sends a message.
+ *
+ * @param {Object} data packet.
+ * @returns {io.Socket}
+ * @api public
+ */
+
+ Socket.prototype.packet = function (data) {
+ if (this.connected && !this.doBuffer) {
+ this.transport.packet(data);
+ } else {
+ this.buffer.push(data);
+ }
+
+ return this;
+ };
+
+ /**
+ * Sets buffer state
+ *
+ * @api private
+ */
+
+ Socket.prototype.setBuffer = function (v) {
+ this.doBuffer = v;
+
+ if (!v && this.connected && this.buffer.length) {
+ this.transport.payload(this.buffer);
+ this.buffer = [];
+ }
+ };
+
+ /**
+ * Disconnect the established connect.
+ *
+ * @returns {io.Socket}
+ * @api public
+ */
+
+ Socket.prototype.disconnect = function () {
+ if (this.connected) {
+ if (this.open) {
+ this.of('').packet({ type: 'disconnect' });
+ }
+
+ // handle disconnection immediately
+ this.onDisconnect('booted');
+ }
+
+ return this;
+ };
+
+ /**
+ * Disconnects the socket with a sync XHR.
+ *
+ * @api private
+ */
+
+ Socket.prototype.disconnectSync = function () {
+ // ensure disconnection
+ var xhr = io.util.request()
+ , uri = this.resource + '/' + io.protocol + '/' + this.sessionid;
+
+ xhr.open('GET', uri, true);
+
+ // handle disconnection immediately
+ this.onDisconnect('booted');
+ };
+
+ /**
+ * Check if we need to use cross domain enabled transports. Cross domain would
+ * be a different port or different domain name.
+ *
+ * @returns {Boolean}
+ * @api private
+ */
+
+ Socket.prototype.isXDomain = function () {
+
+ var 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;
+ };
+
+ /**
+ * Called when the transport first opens a connection
+ *
+ * @param text
+ */
+
+ Socket.prototype.onPacket = function (packet) {
+ this.of(packet.endpoint).onPacket(packet);
+ };
+
+ /**
+ * Handles an error.
+ *
+ * @api private
+ */
+
+ Socket.prototype.onError = function (err) {
+ if (err && err.advice) {
+ if (err.advice === 'reconnect' && this.connected) {
+ this.disconnect();
+ this.reconnect();
+ }
+ }
+
+ this.publish('error', err && err.reason ? err.reason : err);
+ };
+
+ /**
+ * Called when the transport disconnects.
+ *
+ * @api private
+ */
+
+ Socket.prototype.onDisconnect = function (reason) {
+ var wasConnected = this.connected;
+
+ this.connected = false;
+ this.connecting = false;
+ this.open = false;
+
+ if (wasConnected) {
+ this.transport.close();
+ this.transport.clearTimeouts();
+ this.publish('disconnect', reason);
+
+ if ('booted' != reason && this.options.reconnect && !this.reconnecting) {
+ this.reconnect();
+ }
+ }
+ };
+
+ /**
+ * Called upon reconnection.
+ *
+ * @api private
+ */
+
+ Socket.prototype.reconnect = function () {
+ this.reconnecting = true;
+ this.reconnectionAttempts = 0;
+ this.reconnectionDelay = this.options['reconnection delay'];
+
+ var self = this
+ , maxAttempts = this.options['max reconnection attempts']
+ , tryMultiple = this.options['try multiple transports']
+ , 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);
+ }
+
+ 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 <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;