-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathindex.js
More file actions
72 lines (61 loc) · 2.25 KB
/
index.js
File metadata and controls
72 lines (61 loc) · 2.25 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
'use strict';
var express = require('express');
var socket = require('socket.io');
// Set up App
var app = express();
// start server
var server = app.listen(4000, function() {
console.log("Listening to requests on port 4000");
});
// middleware to serve static/public files
app.use(express.static('client'));
// Setup Sockets
// socket() function takes a parameter which is "what server we are using"
var io = socket(server);
// io now sits on this server listening for requests and setting up a socket connection between the two.
io.on('connection', function(socket) { // here parameter socket is the connection which was made between the client and server.
console.log("Made socket connection ", socket.id);
// convenience function to log server messages on the client
function log() {
var array = ['Message from server:'];
array.push.apply(array, arguments);
socket.emit('log', array);
}
socket.on('message', function(message) {
log('Client said: ', message);
// for a real app, would be room-only (not broadcast)
socket.broadcast.emit('message', message);
});
socket.on('create or join', function(room) {
log('Received request to create or join room ' + room);
var clientsInRoom = io.sockets.adapter.rooms[room];
var numClients = clientsInRoom ? Object.keys(clientsInRoom.sockets).length : 0;
log('Room ' + room + ' now has ' + numClients + ' client(s)');
if (numClients === 0) {
socket.join(room);
log('Client ID ' + socket.id + ' created room ' + room);
socket.emit('created', room, socket.id);
} else if (numClients === 1) {
log('Client ID ' + socket.id + ' joined room ' + room);
io.sockets.in(room).emit('join', room);
socket.join(room);
socket.emit('joined', room, socket.id);
io.sockets.in(room).emit('ready');
} else { // max two clients
socket.emit('full', room);
}
});
socket.on('ipaddr', function() {
var ifaces = os.networkInterfaces();
for (var dev in ifaces) {
ifaces[dev].forEach(function(details) {
if (details.family === 'IPv4' && details.address !== '127.0.0.1') {
socket.emit('ipaddr', details.address);
}
});
}
});
socket.on('bye', function(){
console.log('received bye');
});
});