STUN/TURN服务器连接测试 [英] STUN/TURN server connectivity test

问题描述

我试图弄清楚如何测试STUN/TURN服务器是否处于活动状态并正确响应连接.理想情况下，应该在外部计算机上执行此测试，以防万一STUN/TURN机器在这种情况下停机，连接测试也应报告该情况.

I am trying to figure out how to test whether a STUN/TURN server is alive and properly responding to connections. Ideally this test would be performed from an external machine, just in case the STUN/TURN machine is down for this case should also be reported by the connectivity test.

过去有人调查过此案吗?将建议什么解决方案?

Has anyone looked into this case in the past? What solutions would be recommended?

推荐答案

github.io中的一个不错的实现，从注释中提取到另一个答案(在IceTransports值中选择继电器"):

A nice implementation in github.io taken from comment to another answer( choose "relay" in IceTransports value):

测试TURN服务器

按照本杰明·特伦特(Benjamin Trent)的建议，我编写了以下代码来测试TURN服务器的连接性，可同时在Firefox和Chrome中使用:

following Benjamin Trent's advice, I wrote the below code to test TURN server's connectivity, works on both firefox n chrome:

function checkTURNServer(turnConfig, timeout){ 

  return new Promise(function(resolve, reject){

    setTimeout(function(){
        if(promiseResolved) return;
        resolve(false);
        promiseResolved = true;
    }, timeout || 5000);

    var promiseResolved = false
      , myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection   //compatibility for firefox and chrome
      , pc = new myPeerConnection({iceServers:[turnConfig]})
      , noop = function(){};
    pc.createDataChannel("");    //create a bogus data channel
    pc.createOffer(function(sdp){
      if(sdp.sdp.indexOf('typ relay') > -1){ // sometimes sdp contains the ice candidates...
        promiseResolved = true;
        resolve(true);
      }
      pc.setLocalDescription(sdp, noop, noop);
    }, noop);    // create offer and set local description
    pc.onicecandidate = function(ice){  //listen for candidate events
      if(promiseResolved || !ice || !ice.candidate || !ice.candidate.candidate || !(ice.candidate.candidate.indexOf('typ relay')>-1))  return;
      promiseResolved = true;
      resolve(true);
    };
  });   
}

用法示例:

checkTURNServer({
    urls: 'turn:127.0.0.1',
    username: 'test',
    credential: 'test'
}).then(function(bool){
    console.log('is TURN server active? ', bool? 'yes':'no');
}).catch(console.error.bind(console));

您可以运行以下代码段进行检查:

You can run the below snippet to check:

var res = id('result');

id('button').onclick = function(){
	res.innerHTML = 'Checking TURN Server...';
  var url = 'turn:'+id('url').value+':'+id('port').value,
  		useUDP = id('udp').checked;
  url +='?transport=' + (useUDP ? 'udp': 'tcp');
  checkTURNServer({
      urls: url,
      username: id('name').value, 
      credential: id('pass').value
  }, id('time').value).then(function(bool){
  		if(bool)
         res.innerHTML = 'Yep, the TURN server works...';
      else
         throw new Error('Doesn\'t work');
  }).catch(function(e){
  	 console.log(e);
     res.innerHTML = 'TURN server does not work.';
  });
};


function checkTURNServer(turnConfig, timeout){ 
	console.log('turnConfig: ', turnConfig);
  return new Promise(function(resolve, reject){

    setTimeout(function(){
        if(promiseResolved) return;
        resolve(false);
        promiseResolved = true;
    }, timeout || 5000);

    var promiseResolved = false
      , myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection   //compatibility for firefox and chrome
      , pc = new myPeerConnection({iceServers:[turnConfig]})
      , noop = function(){};
    pc.createDataChannel("");    //create a bogus data channel
    pc.createOffer(function(sdp){
      if(sdp.sdp.indexOf('typ relay') > -1){ // sometimes sdp contains the ice candidates...
        promiseResolved = true;
        resolve(true);
      }
      pc.setLocalDescription(sdp, noop, noop);
    }, noop);    // create offer and set local description
    pc.onicecandidate = function(ice){  //listen for candidate events
      if(promiseResolved || !ice || !ice.candidate || !ice.candidate.candidate || !(ice.candidate.candidate.indexOf('typ relay')>-1))  return;
      promiseResolved = true;
      resolve(true);
    };
  });   
}


function id(val){
	return document.getElementById(val);
}

#url{
  width: 250px;
}
#port{
  width: 70px;
}

<h1>
 Test TURN server
</h1>
<div>
TURN URL: <input id='url' placeholder='example.com  or  xxx.yyy.rrr.ddd'  />
Port: <input type='number' value='3478' id='port' placeholder='enter a port number' />
</div>
<div>
Transport: <input type="radio" name="transport" id="tcp" value="tcp" /> TCP
<input type="radio" name="transport" id="udp" value="udp" checked/>UDP
</div>

<div>
Username: <input id="name" placeholder="turn username" />
</div>
<div>
password: <input id="pass" placeholder="turn password" />
</div>

<div>
checking Timeout: <input type='number'  id="time" placeholder="wait time  before checking timeout" value=5000 />
</div>
<div>
<button id='button'>
Check TURN Server
</button>
</div>

<h4 id='result'></h4>

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