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var express = require('express'),
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app = express(),
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server = require('http').createServer(app),
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io = require('socket.io').listen(server),
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users = [];
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app.use('/', express.static(__dirname + '/static'));
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server.listen(process.env.PORT || 3000);
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console.log("服务器启动成功端口：3000")
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io.sockets.on('connection', function(socket) {
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//创建用户链接
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socket.on('login', function(user) {
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if (isHave(user)) {
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socket.emit('nickExisted');
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} else {
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var address="未知";
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user.address=address;
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socket.user = user;
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user.id=socket.id;
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users.push(user);
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socket.emit('loginSuccess',user,users);
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socket.broadcast.emit('system', user,users,'login');
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};
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});
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//用户注销链接
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socket.on('disconnect', function() {
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if (socket.user != null) {
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console.log(users);
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users.forEach(function (item,index) {
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if(item.id==socket.id){
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users.splice(index, 1);
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}
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})
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socket.broadcast.emit('system', socket.user,users, 'logout');
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console.log(users);
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}
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});
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//新建消息
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socket.on('postMsg', function(msg) {
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console.log(socket.user);
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socket.broadcast.emit('newMsg', socket.user, msg);
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});
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//发送私信
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socket.on('privateMsg', function(id,msg) {
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console.log(socket.user);
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console.log(msg);
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socket.broadcast.to(id).emit('personMsg',socket.user,msg);
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});
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//判断用户名是否存在
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function isHave(user) {
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var flag=false;
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for(var i=0;i<users.length;i++){
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if(users[i].nickName==user.nickName){
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flag=true;
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break;
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}
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}
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return flag;
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}
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}); |