RTCPeerConnection?接口代表一個由本地計算機到遠端的WebRTC連接。該接口提供了創(chuàng)建,保持,監(jiān)控,關(guān)閉連接的方法的實現(xiàn)
WebRTC在瀏覽器中的兼容性。參考:
var PeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;
(其他請查看https://developer.mozilla.org/zh-CN/docs/Web/API/RTCPeerConnection)
構(gòu)造函數(shù):RTCPeerConnection.RTCPeerConnection()?,創(chuàng)建一個新的RTCPeerConnection對象。
/**
* Get the user IP throught the webkitRTCPeerConnection
* @param onNewIP {Function} listener function to expose the IP locally
* @return undefined
*/
function getUserIP(onNewIP) { //? onNewIp - your listener function for new IPs
? ? //compatibility for firefox and chrome
? ? var myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;
? ? var pc = new myPeerConnection({
? ? ? ? iceServers: []
? ? }),
? ? noop = function() {},
? ? localIPs = {},
? ? ipRegex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/g,
? ? key;
? ? function iterateIP(ip) {
? ? ? ? if (!localIPs[ip]) onNewIP(ip);
? ? ? ? localIPs[ip] = true;
? ? }
? ? //create a bogus data channel
? ? pc.createDataChannel("");
? ? // create offer and set local description
? ? pc.createOffer().then(function(sdp) {
? ? ? ? sdp.sdp.split('\n').forEach(function(line) {
? ? ? ? ? ? if (line.indexOf('candidate') < 0) return;
? ? ? ? ? ? line.match(ipRegex).forEach(iterateIP);
? ? ? ? });
? ? ? ? pc.setLocalDescription(sdp, noop, noop);
? ? }).catch(function(reason) {
? ? ? ? // An error occurred, so handle the failure to connect
? ? });
? ? //listen for candidate events
? ? pc.onicecandidate = function(ice) {
? ? ? ? if (!ice || !ice.candidate || !ice.candidate.candidate || !ice.candidate.candidate.match(ipRegex)) return;
? ? ? ? ice.candidate.candidate.match(ipRegex).forEach(iterateIP);
? ? };
}
// Usage
getUserIP(function(ip){
? ? alert("Got IP! :" + ip);
});
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原文鏈接:https://www.cnblogs.com/zyh-club/p/11097418.html