bigbluebutton-Github/bigbluebutton-client/resources/prod/lib/sockjs.min.js

/* SockJS client, version 0.3.4, http://sockjs.org, MIT License

Copyright (c) 2011-2012 VMware, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

// JSON2 by Douglas Crockford (minified).
var JSON;JSON||(JSON={}),function(){function str(a,b){var c,d,e,f,g=gap,h,i=b[a];i&&typeof i=="object"&&typeof i.toJSON=="function"&&(i=i.toJSON(a)),typeof rep=="function"&&(i=rep.call(b,a,i));switch(typeof i){case"string":return quote(i);case"number":return isFinite(i)?String(i):"null";case"boolean":case"null":return String(i);case"object":if(!i)return"null";gap+=indent,h=[];if(Object.prototype.toString.apply(i)==="[object Array]"){f=i.length;for(c=0;c<f;c+=1)h[c]=str(c,i)||"null";e=h.length===0?"[]":gap?"[\n"+gap+h.join(",\n"+gap)+"\n"+g+"]":"["+h.join(",")+"]",gap=g;return e}if(rep&&typeof rep=="object"){f=rep.length;for(c=0;c<f;c+=1)typeof rep[c]=="string"&&(d=rep[c],e=str(d,i),e&&h.push(quote(d)+(gap?": ":":")+e))}else for(d in i)Object.prototype.hasOwnProperty.call(i,d)&&(e=str(d,i),e&&h.push(quote(d)+(gap?": ":":")+e));e=h.length===0?"{}":gap?"{\n"+gap+h.join(",\n"+gap)+"\n"+g+"}":"{"+h.join(",")+"}",gap=g;return e}}function quote(a){escapable.lastIndex=0;return escapable.test(a)?'"'+a.replace(escapable,function(a){var b=meta[a];return typeof b=="string"?b:"\\u"+("0000"+a.charCodeAt(0).toString(16)).slice(-4)})+'"':'"'+a+'"'}function f(a){return a<10?"0"+a:a}"use strict",typeof Date.prototype.toJSON!="function"&&(Date.prototype.toJSON=function(a){return isFinite(this.valueOf())?this.getUTCFullYear()+"-"+f(this.getUTCMonth()+1)+"-"+f(this.getUTCDate())+"T"+f(this.getUTCHours())+":"+f(this.getUTCMinutes())+":"+f(this.getUTCSeconds())+"Z":null},String.prototype.toJSON=Number.prototype.toJSON=Boolean.prototype.toJSON=function(a){return this.valueOf()});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={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"},rep;typeof JSON.stringify!="function"&&(JSON.stringify=function(a,b,c){var d;gap="",indent="";if(typeof c=="number")for(d=0;d<c;d+=1)indent+=" ";else typeof c=="string"&&(indent=c);rep=b;if(!b||typeof b=="function"||typeof b=="object"&&typeof b.length=="number")return str("",{"":a});throw new Error("JSON.stringify")}),typeof JSON.parse!="function"&&(JSON.parse=function(text,reviver){function walk(a,b){var c,d,e=a[b];if(e&&typeof e=="object")for(c in e)Object.prototype.hasOwnProperty.call(e,c)&&(d=walk(e,c),d!==undefined?e[c]=d:delete e[c]);return reviver.call(a,b,e)}var j;text=String(text),cx.lastIndex=0,cx.test(text)&&(text=text.replace(cx,function(a){return"\\u"+("0000"+a.charCodeAt(0).toString(16)).slice(-4)}));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,""))){j=eval("("+text+")");return typeof reviver=="function"?walk({"":j},""):j}throw new SyntaxError("JSON.parse")})}()

SockJS=function(){var a=document,b=window,c={},d=function(){};d.prototype.addEventListener=function(a,b){this._listeners||(this._listeners={}),a in this._listeners||(this._listeners[a]=[]);var d=this._listeners[a];c.arrIndexOf(d,b)===-1&&d.push(b);return},d.prototype.removeEventListener=function(a,b){if(!(this._listeners&&a in this._listeners))return;var d=this._listeners[a],e=c.arrIndexOf(d,b);if(e!==-1){d.length>1?this._listeners[a]=d.slice(0,e).concat(d.slice(e+1)):delete this._listeners[a];return}return},d.prototype.dispatchEvent=function(a){var b=a.type,c=Array.prototype.slice.call(arguments,0);this["on"+b]&&this["on"+b].apply(this,c);if(this._listeners&&b in this._listeners)for(var d=0;d<this._listeners[b].length;d++)this._listeners[b][d].apply(this,c)};var e=function(a,b){this.type=a;if(typeof b!="undefined")for(var c in b){if(!b.hasOwnProperty(c))continue;this[c]=b[c]}};e.prototype.toString=function(){var a=[];for(var b in this){if(!this.hasOwnProperty(b))continue;var c=this[b];typeof c=="function"&&(c="[function]"),a.push(b+"="+c)}return"SimpleEvent("+a.join(", ")+")"};var f=function(a){var b=this;b._events=a||[],b._listeners={}};f.prototype.emit=function(a){var b=this;b._verifyType(a);if(b._nuked)return;var c=Array.prototype.slice.call(arguments,1);b["on"+a]&&b["on"+a].apply(b,c);if(a in b._listeners)for(var d=0;d<b._listeners[a].length;d++)b._listeners[a][d].apply(b,c)},f.prototype.on=function(a,b){var c=this;c._verifyType(a);if(c._nuked)return;a in c._listeners||(c._listeners[a]=[]),c._listeners[a].push(b)},f.prototype._verifyType=function(a){var b=this;c.arrIndexOf(b._events,a)===-1&&c.log("Event "+JSON.stringify(a)+" not listed "+JSON.stringify(b._events)+" in "+b)},f.prototype.nuke=function(){var a=this;a._nuked=!0;for(var b=0;b<a._events.length;b++)delete a[a._events[b]];a._listeners={}};var g="abcdefghijklmnopqrstuvwxyz0123456789_";c.random_string=function(a,b){b=b||g.length;var c,d=[];for(c=0;c<a;c++)d.push(g.substr(Math.floor(Math.random()*b),1));return d.join("")},c.random_number=function(a){return Math.floor(Math.random()*a)},c.random_number_string=function(a){var b=(""+(a-1)).length,d=Array(b+1).join("0");return(d+c.random_number(a)).slice(-b)},c.getOrigin=function(a){a+="/";var b=a.split("/").slice(0,3);return b.join("/")},c.isSameOriginUrl=function(a,c){return c||(c=b.location.href),a.split("/").slice(0,3).join("/")===c.split("/").slice(0,3).join("/")},c.getParentDomain=function(a){if(/^[0-9.]*$/.test(a))return a;if(/^\[/.test(a))return a;if(!/[.]/.test(a))return a;var b=a.split(".").slice(1);return b.join(".")},c.objectExtend=function(a,b){for(var c in b)b.hasOwnProperty(c)&&(a[c]=b[c]);return a};var h="_jp";c.polluteGlobalNamespace=function(){h in b||(b[h]={})},c.closeFrame=function(a,b){return"c"+JSON.stringify([a,b])},c.userSetCode=function(a){return a===1e3||a>=3e3&&a<=4999},c.countRTO=function(a){var b;return a>100?b=3*a:b=a+200,b},c.log=function(){b.console&&console.log&&console.log.apply&&console.log.apply(console,arguments)},c.bind=function(a,b){return a.bind?a.bind(b):function(){return a.apply(b,arguments)}},c.flatUrl=function(a){return a.indexOf("?")===-1&&a.indexOf("#")===-1},c.amendUrl=function(b){var d=a.location;if(!b)throw new Error("Wrong url for SockJS");if(!c.flatUrl(b))throw new Error("Only basic urls are supported in SockJS");return b.indexOf("//")===0&&(b=d.protocol+b),b.indexOf("/")===0&&(b=d.protocol+"//"+d.host+b),b=b.replace(/[/]+$/,""),b},c.arrIndexOf=function(a,b){for(var c=0;c<a.length;c++)if(a[c]===b)return c;return-1},c.arrSkip=function(a,b){var d=c.arrIndexOf(a,b);if(d===-1)return a.slice();var e=a.slice(0,d);return e.concat(a.slice(d+1))},c.isArray=Array.isArray||function(a){return{}.toString.call(a).indexOf("Array")>=0},c.delay=function(a,b){return typeof a=="function"&&(b=a,a=0),setTimeout(b,a)};var i=/[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,j={"\0":"\\u0000","\x01":"\\u0001","\x02":"\\u0002","\x03":"\\u0003","\x04":"\\u0004","\x05":"\\u0005","\x06":"\\u0006","\x07":"\\u0007","\b":