speedtest/speedtest.js

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3.6 KiB
JavaScript
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2016-03-04 11:48:09 +00:00
function DownloadTester(serverURL,done,update,err){
this.xhr=new XMLHttpRequest();
this.firstTick=true;
this.prevLoaded=0;
this.startT=new Date().getTime();
this.prevT=new Date().getTime();
this.speed=0.0;
if(done)this.onDone=done; if(update)this.onUpdate=update; if(err)this.onFail=err;
this.xhr.onprogress=function(event){
var instspd=(event.loaded-this.prevLoaded)/((new Date().getTime()-this.prevT)/1000.0);
if(isNaN(instspd)||!isFinite(instspd)) return;
if(this.firstTick){
this.speed=instspd;
this.firstTick=false;
}else{
this.speed=this.speed*0.9+instspd*0.1;
}
this.prevLoaded=event.loaded;
this.prevT=new Date().getTime();
this.onUpdate();
if(((this.prevT-this.startT)/1000.0)>15){try{this.xhr.abort();}catch(e){} this.onDone();}
}.bind(this);
this.xhr.onload=function(){
this.onUpdate();
this.onDone();
}.bind(this);
this.xhr.onerror=function(){
this.onUpdate();
this.onFail();
}.bind(this);
this.xhr.open("GET", serverURL+"?random="+Math.random(),true);
this.xhr.send();
}
DownloadTester.prototype={
constructor:DownloadTester,
onDone:function(){},
onFail:function(){},
onUpdate:function(){},
getValue:function(){return ((this.speed*8)/1048576.0).toFixed(2);},
cancel:function(){try{this.xhr.abort();}catch(e){}}
}
function UploadTester(serverURL,done,update,err){
this.xhr=new XMLHttpRequest();
this.firstTick=true;
this.prevLoaded=0;
this.startT=new Date().getTime();
this.prevT=new Date().getTime();
this.speed=0.0;
if(done)this.onDone=done; if(update)this.onUpdate=update; if(err)this.onFail=err;
this.xhr.upload.onprogress=function(event){
var instspd=(event.loaded-this.prevLoaded)/((new Date().getTime()-this.prevT)/1000.0);
if(isNaN(instspd)||!isFinite(instspd)) return;
if(this.firstTick){
this.firstTick=false;
}else{
this.speed=this.speed*0.7+instspd*0.3;
}
this.prevLoaded=event.loaded;
this.prevT=new Date().getTime();
this.onUpdate();
if(((this.prevT-this.startT)/1000.0)>15){try{this.xhr.abort();}catch(e){} this.onDone();}
}.bind(this);
this.xhr.onload=function(){
this.onUpdate();
this.onDone();
}.bind(this);
this.xhr.onerror=function(){
this.onUpdate();
this.onFail();
}.bind(this);
this.xhr.open("POST", serverURL+"?random="+Math.random(),true);
this.xhr.send(new ArrayBuffer(10485760));
}
UploadTester.prototype={
constructor:UploadTester,
onDone:function(){},
onFail:function(){},
onUpdate:function(){},
getValue:function(){return ((this.speed*8)/1048576.0).toFixed(2);},
cancel:function(){try{this.xhr.abort();}catch(e){}}
}
function PingTester(serverURL,done,update,err){
this.xhr=null;
this.prevT=null;
this.ping=0.0;
this.i=0;
this.pingURL=serverURL;
if(done)this.onDone=done;
if(update)this.onUpdate=update;
if(err)this.onFail=err;
this.doPing=function(){
this.prevT=new Date().getTime();
this.xhr=new XMLHttpRequest();
this.xhr.onload=function(){
if(this.i==0){
this.prevT=new Date().getTime();
}else{
var instspd=new Date().getTime()-this.prevT;
if(this.i==1) this.ping=instspd; else this.ping=this.ping*0.9+instspd*0.1;
}
this.onUpdate();
this.i++;
if(this.i<50) this.doPing(); else this.onDone();
}.bind(this);
this.xhr.onerror=function(){
this.onUpdate();
this.onFail();
}.bind(this);
this.xhr.open("GET", this.pingURL+"?random="+Math.random(),true);
this.xhr.send();
}.bind(this);
this.doPing();
}
PingTester.prototype={
constructor:PingTester,
onDone:function(){},
onFail:function(){},
onUpdate:function(){},
getValue:function(){return this.ping.toFixed(2);},
cancel:function(){this.i=9999; if(this.xhr) try{xhr.abort();}catch(e){}}
}