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README.md
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37
README.md
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# Speedtest in 4k
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No Flash, No Java, No Websocket, No Bullshit.
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This is a very small (4k) Speedtest implemented in Javascript, that relies only on XMLHttpRequest.
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## Try it
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[Take a Speedtest](http://speedtest.adolfintel.com)
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## Compatibility
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Microsoft Edge, Firefox 10+, Chrome 10+, Opera 15+, Safari 7 (not tested)
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## Requirements
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- A reasonably fast web serve
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- Some way to generate garbage data using either the included PHP script, a [big file of random data](http://downloads.adolfintel.com/geth.php?r=speedtest-bigfile), or a symlink to /dev/urandom
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- Your server must not compress the data it sends
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- Your server must accept large POST requests (up to 10 Megabytes), otherwise the upload test will fail
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- Client side, there must not be any type of buffering (such as a proxy), or you may get incorrect results
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## How to use
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See example.html, it's not rocket science.
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## License
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Copyright (C) 2016 Federico Dossena
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/lgpl>.
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46
example.html
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46
example.html
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<!DOCTYPE html>
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<html>
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<head>
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<title>Speedtest</title>
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<script type="text/javascript" src="speedtest.js"></script>
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</head>
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<body>
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<h1>Speedtest</h1>
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<h4>Download</h4>
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<div id="download">Wait...</div>
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<h4>Upload</h4>
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<div id="upload">Wait...</div>
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<h4>Latency</h4>
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<div id="ping">Wait...</div>
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<script type="text/javascript">
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var tester=new DownloadTester("garbage.php");
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var d=document.getElementById("download");
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tester.onUpdate=function(){
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d.innerHTML=tester.getValue()+" Megabit/s";
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}
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tester.onFail=function(){
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d.innerHTML="Failed";
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tester.onDone();
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}
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tester.onDone=function(){
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tester=new UploadTester("upload-test");
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d=document.getElementById("upload");
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tester.onUpdate=function(){
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d.innerHTML=tester.getValue()+" Megabit/s";
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}
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tester.onFail=function(){
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d.innerHTML="Failed";
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tester.onDone();
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}
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tester.onDone=function(){
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tester=new PingTester("empty.dat");
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d=document.getElementById("ping");
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tester.onUpdate=function(){
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d.innerHTML=tester.getValue()+" ms";
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}
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tester.onFail=function(){d.innerHTML="Failed";}
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}
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}
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</script>
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</body>
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</html>
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9
garbage.php
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garbage.php
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<?php
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header( "HTTP/1.1 200 OK" );
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$data=str_repeat("0",1048576);
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while(1){
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echo $data;
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flush();
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}
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?>
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123
speedtest.js
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123
speedtest.js
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function DownloadTester(serverURL,done,update,err){
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this.xhr=new XMLHttpRequest();
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this.firstTick=true;
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this.prevLoaded=0;
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this.startT=new Date().getTime();
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this.prevT=new Date().getTime();
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this.speed=0.0;
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if(done)this.onDone=done; if(update)this.onUpdate=update; if(err)this.onFail=err;
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this.xhr.onprogress=function(event){
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var instspd=(event.loaded-this.prevLoaded)/((new Date().getTime()-this.prevT)/1000.0);
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if(isNaN(instspd)||!isFinite(instspd)) return;
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if(this.firstTick){
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this.speed=instspd;
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this.firstTick=false;
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}else{
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this.speed=this.speed*0.9+instspd*0.1;
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}
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this.prevLoaded=event.loaded;
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this.prevT=new Date().getTime();
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this.onUpdate();
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if(((this.prevT-this.startT)/1000.0)>15){try{this.xhr.abort();}catch(e){} this.onDone();}
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}.bind(this);
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this.xhr.onload=function(){
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this.onUpdate();
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this.onDone();
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}.bind(this);
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this.xhr.onerror=function(){
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this.onUpdate();
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this.onFail();
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}.bind(this);
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this.xhr.open("GET", serverURL+"?random="+Math.random(),true);
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this.xhr.send();
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}
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DownloadTester.prototype={
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constructor:DownloadTester,
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onDone:function(){},
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onFail:function(){},
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onUpdate:function(){},
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getValue:function(){return ((this.speed*8)/1048576.0).toFixed(2);},
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cancel:function(){try{this.xhr.abort();}catch(e){}}
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}
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function UploadTester(serverURL,done,update,err){
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this.xhr=new XMLHttpRequest();
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this.firstTick=true;
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this.prevLoaded=0;
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this.startT=new Date().getTime();
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this.prevT=new Date().getTime();
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this.speed=0.0;
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if(done)this.onDone=done; if(update)this.onUpdate=update; if(err)this.onFail=err;
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this.xhr.upload.onprogress=function(event){
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var instspd=(event.loaded-this.prevLoaded)/((new Date().getTime()-this.prevT)/1000.0);
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if(isNaN(instspd)||!isFinite(instspd)) return;
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if(this.firstTick){
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this.firstTick=false;
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}else{
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this.speed=this.speed*0.7+instspd*0.3;
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}
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this.prevLoaded=event.loaded;
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this.prevT=new Date().getTime();
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this.onUpdate();
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if(((this.prevT-this.startT)/1000.0)>15){try{this.xhr.abort();}catch(e){} this.onDone();}
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}.bind(this);
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this.xhr.onload=function(){
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this.onUpdate();
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this.onDone();
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}.bind(this);
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this.xhr.onerror=function(){
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this.onUpdate();
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this.onFail();
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}.bind(this);
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this.xhr.open("POST", serverURL+"?random="+Math.random(),true);
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this.xhr.send(new ArrayBuffer(10485760));
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}
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UploadTester.prototype={
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constructor:UploadTester,
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onDone:function(){},
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onFail:function(){},
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onUpdate:function(){},
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getValue:function(){return ((this.speed*8)/1048576.0).toFixed(2);},
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cancel:function(){try{this.xhr.abort();}catch(e){}}
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}
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function PingTester(serverURL,done,update,err){
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this.xhr=null;
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this.prevT=null;
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this.ping=0.0;
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this.i=0;
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this.pingURL=serverURL;
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if(done)this.onDone=done;
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if(update)this.onUpdate=update;
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if(err)this.onFail=err;
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this.doPing=function(){
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this.prevT=new Date().getTime();
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this.xhr=new XMLHttpRequest();
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this.xhr.onload=function(){
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if(this.i==0){
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this.prevT=new Date().getTime();
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}else{
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var instspd=new Date().getTime()-this.prevT;
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if(this.i==1) this.ping=instspd; else this.ping=this.ping*0.9+instspd*0.1;
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}
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this.onUpdate();
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this.i++;
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if(this.i<50) this.doPing(); else this.onDone();
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}.bind(this);
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this.xhr.onerror=function(){
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this.onUpdate();
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this.onFail();
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}.bind(this);
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this.xhr.open("GET", this.pingURL+"?random="+Math.random(),true);
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this.xhr.send();
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}.bind(this);
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this.doPing();
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}
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PingTester.prototype={
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constructor:PingTester,
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onDone:function(){},
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onFail:function(){},
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onUpdate:function(){},
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getValue:function(){return this.ping.toFixed(2);},
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cancel:function(){this.i=9999; if(this.xhr) try{xhr.abort();}catch(e){}}
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}
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