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server.js
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server.js
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var express = require('express');
var app = express();
var fs = require('fs');
var http = require('http');
var users = 0;
var disconnectedUsers = 0;
var io = require('socket.io');
var openedSockets = [];
var server = http.createServer(app);
app.use(express.static(__dirname + '/../public/'));
exports.run = function (config) {
server.listen(config.PORT);
console.log('Listening on', config.PORT);
var serverSocket = io.listen(server, { log: false });
serverSocket.on('connection', function (socket) {
console.info('peer connected');
socket.on('init', function (data, fn) {
var id = users++;
fn(id);
openedSockets.forEach(function (s) {
s.emit('newPeer', { id: id, socketId: socket.id });
})
openedSockets.push(socket);
if (users == 1 || users == disconnectedUsers) {
socket.emit('init', true);
}
});
socket.on('message', function (message) {
console.log('message to: ' + message.to);
console.log('message type: ' + message.type);
var sock = openedSockets[parseInt(message.to, 10)];
if (sock) {
message.socketId = socket.id;
sock.emit('message', message);
}
});
socket.on('disconnect', function () {
var id = socket.id;
disconnectedUsers++;
var index = openedSockets.indexOf(socket);
if(index> 0){
delete openedSockets[index];
}
openedSockets.forEach(function (s) {
s.emit('disconnected', id);
if (users == disconnectedUsers) {
s.emit('init', true);
}
})
console.log('peer disconnected');
});
})
}