检查turn服务器是否处于活跃状态

2019-5-24 Jon

使用webRTC时

有时需要自己搭建turn服务器

如何测试搭建好的turn服务器是否可用

下面给出代码

修改checkTURNServer里面对象的

url/username/credential分别对应url/用户名/密码

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <meta name="viewport" content="width=device-width, initial-scale=1.0">

  <meta http-equiv="X-UA-Compatible" content="ie=edge">

  <title>检查turn服务器是否处于活跃状态</title>

</head>

<body>

  <script>

    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,   // 兼容firefox和chrome

            pc = new myPeerConnection({iceServers:[turnConfig]}),

            noop = function(){};

        pc.createDataChannel("");    // 创建一个伪数据通道

        pc.createOffer(function(sdp) {

          if(sdp.sdp.indexOf('typ relay') > -1){ // 有时sdp包含ice候选项…

            promiseResolved = true;

            resolve(true);

          }

          pc.setLocalDescription(sdp, noop, noop);

        }, noop);    // 创建报价并设置本地描述

        pc.onicecandidate = function(ice){  // 监听候选事件

          if(promiseResolved || !ice || !ice.candidate || !ice.candidate.candidate || !(ice.candidate.candidate.indexOf('typ relay')>-1))  return;

          promiseResolved = true;

          resolve(true);

        };

      });

    }

    checkTURNServer({

      url: 'turn:53.83.181.100:3478',

      username: '1232131311:abc',

      credential: 'sfffqwerfwef3243524fx='

    }).then(function(bool){

      console.log('is my TURN server active? ', bool? 'yes':'no');

    }).catch(console.error.bind(console));

  </script>

</body>

</html>

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