[pion]测试你的TURN服务器
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[pion]测试你的TURN服务器
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把下面的html用瀏覽器打開，填入你想要測試的turn服務器
<html><header><title>ice測試</title> </header><body><label for="serverAddress"></label> <input id="serverAddress" value="turn:127.0.0.1:13902"/> <br/><label for="username"></label><input id="username" value="foo"/> <br/><label for="password"></label><input id="password" value="bar"/> <br/><button onclick="window.test()">Test</button><script>function checkTURNServer(turnConfig, timeout) {return new Promise(function (resolve, reject) {let promiseResolved;setTimeout(function () {if (promiseResolved) return;resolve(false);promiseResolved = true;}, timeout || 5000);promiseResolved = false;let 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 channelpc.createOffer({}).then((offer) => {if (offer.sdp.indexOf('typ relay') > -1) { // sometimes sdp contains the ice candidates...promiseResolved = true;resolve(true);}pc.setLocalDescription(offer)})pc.onicecandidate = function (ice) { //listen for candidate eventsif (promiseResolved || !ice || !ice.candidate|| !ice.candidate.candidate|| !(ice.candidate.candidate.indexOf('typ relay') > -1)) return;console.log("ice candidate=", ice.candidate)// If a relay candidate was found, notify that the TURN server works!if (ice.candidate.type === "relay") {console.log("The TURN server is reachable !");}promiseResolved = true;resolve(true);};});}window.test = () => {let serverAddress = document.getElementById("serverAddress").value;let username = document.getElementById("username").value;let password = document.getElementById("password").value;console.log("Trigger ice test. Server address=", serverAddress,", username=", username, ", password=", password)checkTURNServer({urls: serverAddress,username: username,credential: password}).then(function (bool) {console.log('is TURN server active? ', bool ? 'yes' : 'no');}).catch(console.error.bind(console));}</script> </body> </html>簡單說來，就是創建一個PeerConnection，指定ICEServer，也就是我們的目標測試ICE。
傳入本地的sdp，觸發ice過程。
onicecandidate的回調中，會收到ice的結果，如果類型是relay，則表示turn服務器正常。
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