基于网络聊天室的社交游戏 -- nodejs、express、socket.io-server

var express = require(‘express‘);

var app = express();

//设置跨域请求的域名
app.all(‘*‘, function(req, res, next) {
  res.header("Access-Control-Allow-Credentials", "true");
  res.header("Access-Control-Allow-Origin", "");
  next();
});

//设置监听端口
app.set(‘PORT‘, 3000);
var server = app.listen(app.get(‘PORT‘),function(err){
  if(err){
    console.error(‘server error:%s‘,err && ess.message);
    return;
  }
  console.log(‘server listening at :::‘,app.get(‘PORT‘));
});

var io = require(‘socket.io‘)(server);

//通过域名限制ws连接
 io.origins((origin, callback) => {
   if (origin !== ‘http://www.tanmiba.com‘) {
     return callback(‘origin not allowed‘, false);
   }
   callback(null, true);
 });

//使用socket.io
io.sockets.on(‘connection‘, function (socket) {
  console.log("connection");

  socket.on(‘commonsay‘,function(data){
    console.log("commonsay:" + data);
    //广播
    io.sockets.emit(‘commonsay‘, data);
  });

  socket.on(‘disconnect‘,function(){
    console.log("disconnect");
  });
});

var session = require(‘express-session‘);

app.use(session({
    resave: false,
    saveUninitialized: true,
  secret:‘recommand 128 bytes random string‘,
  cookie:{maxAge:60*1000*1000}
}));