I have webrtc node server like as below.
var WebSocketServer = require('websocket').server;
var http = require('http');
var server = http.createServer(function(request, response) {
// process HTTP request. Since we're writing just WebSockets server
// we don't have to implement anything.
});
server.listen(1337, function() { });
// create the server
wsServer = new WebSocketServer({
httpServer: server
});
// WebSocket server
wsServer.on('request', function(request) {
var connection = request.accept(null, request.origin);
// This is the most important callback for us, we'll handle
// all messages from users here.
connection.on('message', function(message) {
if (message.type === 'utf8') {
// process WebSocket message
}
});
connection.on('close', function(connection) {
// close user connection
});
});
I wonder that which port range is used by node server. We can see one port in the code (1337). But i think node server uses one more port or port range because of video stream. How can i learn which ports are used by webrtc node server.
The Node.js server does not use any additional ports for media. It is a signalling server which only relays session information(SDP exchange, ICE, etc.) and does not relay any media.
If the media was to be relayed by anything, it would be a TURN server but that would be determined by your ICE server set up.
Now, if you are handling media in a peerconnection on the same server as you are signalling, you can grab the port that the media is being streamed to the peerconnection from the SDP.
Related
I am trying to bridge a websocket to a socks5. Basically I created a websocket server that listen to request and turn into
const socket = net.connect(port, host, ()=>{
socket.write(Buffer.from(buf));
});
Now I tried using proxysocket and do
const socket = proxysocket.create(proxy_host, proxy_port);
socket.connect(port, host,()=>{
console.log('hi');
socket.write(Buffer.from(buf));
});
Yet it never gets to 'hi'.
I'm fairly new to node js and I need to solve a problem. I have two tcp servers that can send out messages. I need a component between them (a client?): when the first server sends out a message, this middle component must take it (because I need to parse that) and send it to the second server and viceversa (from second server to first server). How to do this in node? Thank you!
a basic tcp
server, but for some reason omit a client connecting to it.
In your middleware, you'll have to have a client that gets the message and forward it to the other server.
At the server
var net = require('net');
var server = net.createServer(function(socket) {
socket.write('Echo server\r\n');
socket.pipe(socket);
});
server.listen(1337, '127.0.0.1');
At the client
var net = require('net');
var client = new net.Socket();
client.connect(1337, '127.0.0.1', function() {
console.log('Connected');
client.write('Hello, server! Love, Client.');
});
client.on('data', function(data) {
console.log('Received: ' + data);
client.destroy(); // kill client after server's response
});
client.on('close', function() {
console.log('Connection closed');
});
I am working on a web rtc project. I have create four files: index.html, server.js, client.js and package.json. My server is node.js. When I input node server.js, it produces nothing. Then, when i write on my web browser localhost:8080, it says upgrade required. Any solution? Please.
Thanks in advance.
This means that you have a http server listening on 8080 without websocket capabilities. Your webrtc client needs websocket to be able to talk with the server. You need also socket.io. Example:
// Require HTTP module (to start server) and Socket.IO
var http = require('http'), io = require('socket.io');
// Start the server at port 8080
var server = http.createServer(function(req, res){
// Send HTML headers and message
res.writeHead(200,{ 'Content-Type': 'text/html' });
res.end('<h1>Hello Socket Lover!</h1>');
});
server.listen(8080);
// Create a Socket.IO instance, passing it our server
var socket = io.listen(server);
// Add a connect listener
socket.on('connection', function(client){
// Success! Now listen to messages to be received
client.on('message',function(event){
console.log('Received message from client!',event);
});
client.on('disconnect',function(){
clearInterval(interval);
console.log('Server has disconnected');
});
});
This means that you have an http server listening on 8080 without WebSocket capabilities. Your webrtc client needs a WebSocket to be able to talk with the server. You need also socket.io. Example:
// Require HTTP module (to start server) and Socket.IO
var http = require('http'), io = require('socket.io');
// Start the server at port 8080
var server = http.createServer(function(req, res){
// Send HTML headers and message
res.writeHead(200,{ 'Content-Type': 'text/html' });
res.end('<h1>Hello Socket Lover!</h1>');
});
server.listen(8080);
// Create a Socket.IO instance, passing it our server
var socket = io.listen(server);
// Add a connect listener
socket.on('connection', function(client){
// Success! Now listen to messages to be received
client.on('message',function(event){
console.log('Received message from client!',event);
});
client.on('disconnect',function(){
clearInterval(interval);
console.log('Server has dis
I'm integrating socket.io into my project. I'm using the code below and it's creating 6 connections after the first request. Is this normal?
server.listen(
port,
function()
{
console.log('Node.js server listening on port ' + port);
}
);
server.on(
'connection',
function(socket)
{
console.log('socket.io connection');
}
);
And here is the console.log output:
Node.js server listening on port 3000
socket.io connection
socket.io connection
socket.io connection
socket.io connection
socket.io connection
socket.io connection
You get this result because (as far as I understand) your server object is an instance of node's http.Server class, and is not connected with Socket.IO at all. In your example, 'connection' event is being fired on any request the your node server. It looks like browser sends 6 requests to your node server: page, favicon.ico, and 4 other requests (it might be images, javascripts, css, etc.).
To integrate socket.io into your project you may use the following code:
var http = require('http');
var sio = require('socket.io');
var server = http.createServer(function(req, res) {
//you request handler here
});
var io = sio(server);
io.on('connection', function(socket) {
console.log('socket connected');
//now you can emit and listen messages
});
var port = 3000;
server.listen(port, function() {
console.log('Node.js server listening on port ' + port);
});
And, of course, the official documentation might be very helpful. Good luck :)
I need to synchronize some of data immediately between some servers with main one.
So I think the best and easiest way is using WebSocket in NodeJS.I have some experienced with socket.io module,but it provide client to use in browser.I looked at engine.io ,it looks like socket.io too.
Is there any library to make WebSocket connection as client with out browser?
(or any alternative safe protocol for my situation?)
If you're going to be transferring data across servers, you aren't limited to using the HTTP protocol. Instead, you can use raw TCP sockets. This is how you'd make a listen server:
var net = require('net');
var server = net.createServer(function(socket) {
// do what you need
socket.write();
socket.end();
});
server.listen(8080);
And this is how you'd connect to it from another Node process:
var net = require('net');
var client = net.connect({port: 8080}, function() {
// we can send data back
client.write();
});
client.on('data', function(data) {
// receive data here
});
client.on('end', function() {
// we received a FIN packet
});