1292454532,169776066*/ if (window.CavalryLogger) { CavalryLogger.start_js(["0ZgLV"]); } function ChannelUplink(){this.init();}(function(){var e=function(){};var f=e;var i=e;var g=function(j){((window.console&&(window.console.debug||window.console.log))||e)("iframex: "+j);};var h=function(j){((window.console&&(window.console.error||window.console.log))||e)("iframex: "+j);};var a=60000,d=100,b=1000,c=5000;copy_properties(ChannelUplink.prototype,{_waits:{},init:function(){this.state='start';this.enableLogging();this.request=null;this.requestNum=0;this.requestTimer=null;this.baseURL=document.location.protocol+'//'+document.location.host;this.isActionRequest=false;this.channelName=null;this.currentSeq=null;this.handleParentEvent=CrossDocument.mkEventHandler(this._handleParentMessage.bind(this));this.handleParentMessage=CrossDocument.mkMessageHandler(this._handleParentMessage.bind(this));CrossDocument.setListener(this.handleParentEvent.bind(this));this.postMessage=CrossDocument.mkPostMessage(window.parent,window.parent.document,window.parent.channelManager.handleIframeMessage);this.targetOrigin=CrossDocument.targetOrigin(window.parent);this.transition('parent_wait');},logToParent:function(j){this.sendParentMessage({type:'log',msg:j});},enableLogging:function(){f=this.logToParent.bind(this);i=this.logToParent.bind(this);},disableLogging:function(){f=e;i=e;},transition:function(k,j){var m;var l=this.state;this.state=k;f("transition: "+l+" -> "+k);if(this.request!==null)this.request.abandon();if(k=='parent_wait'){this.sendParentInit.bind(this).defer(d);this.checkParentInit.bind(this).defer(b);}else if(k=='ready'){this.sendRequest();}else if(k=='ping'){this.ping();}else if(k=='reconnect'){m=ChannelRebuildReasons.ChannelUnknown;if(typeof j=="object"){r=parseInt(j.reason);if(!isNaN(r))m=r;}this.reconnect(m);}else if(k=='full_reload'){this.sendParentMessage({type:'channelMsg',channel:'all',msg:{type:'fullReload'}});}else if(!(k=='idle')){i("bogus transition "+l+" -> "+k+" ... going to ready");this.transition('ready');}},wait:function(j,k){if(k){delete this._waits[j];return;}var l=this._waits[j];if(!l){l=this.getConfig('MIN_RETRY_INTERVAL',10000);}else l*=navigator.onLine?Math.SQRT2:1;this._waits[j]=l;return (l*(.75+Math.random()*.5))|0;},getConfig:function(l,k){var j=this.channelConfig;return j&&(l in j)?j[l]:k;},sendParentMessage:function(j){if(this.targetOrigin){this.postMessage(JSON.encode(j),this.targetOrigin);}else this.postMessage(JSON.encode(j));},_handleParentMessage:function(j){if(j.type=='isReady'){this.isActionRequest=j.isActionRequest;if(j.channelName===null){this.channelName=null;i("got no channels or invalid isReady message from parent; not sending a request");this.transition('idle');}else if(j.isReady){this.channelName=j.channelName;this.currentSeq=j.currentSeq;this.channelManagerId=j.channelManagerId;this.channelConfig=j.channelConfig;f("parent isReady");this.transition('ready');}}else if(j.type=='isActionRequest'){this.isActionRequest=j.isActionRequest;}else if(j.type=='expectResponse')if(this.request===null){f("expectResponse received but no request open");}else if(this.state!='ping'&&this.state!='ready'){f("expectResponse received but we're in state "+this.state);}else{f("expectResponse resetting timeout to "+j.newTimeout);this.request.resetTimeout(j.newTimeout);}},requestIsValid:function(j){return (j==this.requestNum);},sendParentInit:function(){this.sendParentMessage({type:'init'});},checkParentInit:function(){if(this.state=='parent_wait')this.transition('parent_wait');},sendRequest:function(){var l=this.baseURL+'/x/'+rand32()+'/'+this.channelManagerId;if(this.isActionRequest){l+='/true/';this.isActionRequest=false;}else l+='/false/';var j={};j[encodeURIComponent(this.channelName)]=this.currentSeq;l+=URI.implodeQuery(j);this.requestNum+=1;var k=document.location.host.match('xyzzy')?{ka:'1'}:{};this.request=new AsyncRequest();this.request.setHandler(this.onRequestSuccess.bind(this,this.requestNum)).setErrorHandler(this.onRequestError.bind(this,this.requestNum)).setTransportErrorHandler(this.onRequestTransportError.bind(this,this.requestNum)).setTimeoutHandler(a,this.onRequestTimeout.bind(this,this.requestNum)).setData(k).setMethod('GET').setReadOnly(true).setOption('retries',0).setOption('suppressErrorAlerts',true).setURI(l).setOption('tfbEndpoint',false).setAllowCrossPageTransition(true).send();},onRequestSuccess:function(m,n){this.wait('/x',true);if(!this.requestIsValid(m)){i("old x request success");return;}var j=n.getPayload();if(j.t=='refresh'||j.t=='refreshDelay'){i("got refresh or refreshDelay from channel");this.transition('reconnect',j);}else if(j.t=='fullReload'){this.transition('full_reload');}else if(j.t=='continue'){this.transition('ready');}else if(j.t=='msg'){var o=j.s-j.ms.length;for(var k=0;k=this.currentSeq)this.sendParentMessage({type:'channelMsg',channel:this.channelName,msg:j.ms[k]});}this.currentSeq=j.s;this.sendParentMessage({type:'channelMsg',channel:this.channelName,msg:{type:'seq',seq:this.currentSeq}});this.transition('ready');}else{i("got unexpected response type `"+j.t+"' from channel");this.transition('ready');}},onRequestError:function(j,k){if(!this.requestIsValid(j)){f("old x request error");return;}i("x request error: "+k.getErrorDescription());this.transition.bind(this,'ping').defer(this.wait('/x'));},onRequestTransportError:function(j,k){if(!this.requestIsValid(j)){f("old x transport error");return;}i("x transport error: "+k.getErrorDescription());this.transition.bind(this,'ping').defer(this.wait('/x'));},onRequestTimeout:function(j){if(!this.requestIsValid(j)){f("old x request timeout");return;}i("x request timed out");this.transition('ping');},ping:function(){var j=this.baseURL+'/p';f("pinging "+j);this.requestNum+=1;this.request=new AsyncRequest();this.request.setHandler(this.onPingSuccess.bind(this,this.requestNum)).setErrorHandler(this.onPingError.bind(this,this.requestNum)).setTransportErrorHandler(this.onPingTransportError.bind(this,this.requestNum)).setTimeoutHandler(c,this.onPingTimeout.bind(this,this.requestNum)).setMethod('GET').setReadOnly(true).setURI(j).setOption('retries',0).setOption('tfbEndpoint',false).setAllowCrossPageTransition(true).send();},onPingSuccess:function(j,k){this.wait('/p',true);if(!this.requestIsValid(j)){i("old ping success");return;}f("successful ping");this.transition('ready');},onPingError:function(j,k){if(!this.requestIsValid(j)){f("old ping request error");return;}i("ping error: "+k.getErrorDescription());this.transition.bind(this,'ping').defer(this.wait('/p'));},onPingTransportError:function(j,k){if(!this.requestIsValid(j)){f("old ping transport error");return;}i("ping transport error: "+k.getErrorDescription());this.transition.bind(this,'ping').defer(this.wait('/p'));},onPingTimeout:function(j){if(!this.requestIsValid(j)){f("old ping timeout");return;}f("ping timeout");this.transition('ping');},reconnect:function(k){i("reconnecting");var j={type:'shutdown',reason:k};this.sendParentMessage({type:'channelMsg',channel:'all',msg:j});}});onloadRegister(function(){if(window.location.pathname.startsWith("/iframe/")){f("constructing iframe");document.domain='facebook.com';window.channelUplink=new ChannelUplink();}else i("please don't require the `channel-iframe' for normal pages like "+window.location);});})(); if (window.Bootloader) { Bootloader.done(["0ZgLV"]); }