我正在尝试使用 webRTC 和 WebSockets 开发一个视频聊天应用程序来发送信号。我的问题是我不知道创建 RTCPeerConnection 并通过 webSocket(至少在本地)连接两个对等点(2 个浏览器)的过程是什么。
我知道如何通过 WebSockets 与客户端通信,但不使用 RTCPeerConnection API,您知道任何教程一步一步地解释该过程吗?(提供 SDP、答案、ICE、...),另一方面,看起来如何通过 RTCPeerConnection 管理这些客户端的服务器代码?
这是我的服务器的 Node.js 代码
"use strict";
// Optional. You will see this name in eg. 'ps' or 'top' command
process.title = 'node-webrtc';
// Port where we'll run the websocket server
var webSocketsServerPort = 1337;
// websocket and http servers
var webSocketServer = require('websocket').server;
var http = require('http');
/* ---------------------------------
GLOBAL VARIABLES
----------------------------------*/
// latest 100 messages
//var history = [ ];
// list of currently connected clients (users)
var clients = [ ];
/* ---------------------------------
HTTP SERVER
----------------------------------*/
var server = http.createServer(function(request, response) {
// Not important for us. We're writing WebSocket server, not HTTP server
});
server.listen(webSocketsServerPort, function() {
console.log((new Date()) + " Server is listening on port " + webSocketsServerPort);
});
/* ---------------------------------
WEBSOCKET SERVER
----------------------------------*/
var wsServer = new webSocketServer({
// WebSocket server is tied to a HTTP server. WebSocket request is just
// an enhanced HTTP request. For more info http://tools.ietf.org/html/rfc6455#page-6
httpServer: server
});
// This callback function is called every time someone
// tries to connect to the WebSocket server
wsServer.on('request', function(request) {
console.log((new Date()) + ' Connection from origin ' + request.origin + '.');
// accept connection - you should check 'request.origin' to make sure that
// client is connecting from your website
// (http://en.wikipedia.org/wiki/Same_origin_policy)
var connection = request.accept(null, request.origin);
// we need to know client index to remove them on 'close' event
var index = clients.push(connection) - 1;
console.log((new Date()) + ' Connection accepted.');
// user sent some message
connection.on('message', function(message) {
for (var i=0; i < clients.length; i++) {
clients[i].sendUTF(message);
}
});
// user disconnected
connection.on('close', function(conn) {
console.log((new Date()) + " Peer " + conn.remoteAddress + " disconnected.");
// remove user from the list of connected clients
clients.splice(index, 1);
});
});