var net= require('net');

var HOST = '192.168.10.209';

var WEBPORT= 9001;

var APPPORT= 9002;

var ServerSocket;

var clientSockets= new Array();

net.createServer(function(sock) {

console.log('CONNECTION: ' + sock.remoteAddress+ ':' + sock.remotePort);

clientSockets.push({data:sock});

// 为这个socket实例添加一个"data"事件处理函数

sock.on('data',function(data) {

//console.log('DATA' + sock.remoteAddress + ': ' + data);

if(ServerSocket==null){// APP服务器不在线

var jsonString = '{"meta":{"code":0,"message":"解码服务器不在线"},"data":""}';

var httpContent = 'HTTP\/1.1 200\nContent-Type:application\/json\n\n'+jsonString;

sock.write(Buffer.from(httpContent));

sock.end();

}else{

ServerSocket.write(sock.remoteAddress+'\n'+sock.remotePort+'\n'+data);

// 超时结束

setTimeout(function() {

// 如果还没有响应则超时处理

for (var i= 0; i< clientSockets.length; i++) {

var socket= clientSockets[i]['data'];

if(socket.remoteAddress==sock.remoteAddress&&socket.remotePort==sock.remotePort){

var jsonString = '{"meta":{"code":0,"message":"请求超时"},"data":""}';

var httpContent = 'HTTP\/1.1 200\nContent-Type:application\/json\n\n'+jsonString;

sock.write(Buffer.from(httpContent));

sock.end();

}

}

},15000);

}

});

// 为这个socket实例添加一个"close"事件处理函数

sock.on('close',function(data) {

removeSocket(sock);

console.log('CLOSED: ' +

sock.remoteAddress+ ' ' + sock.remotePort);

});

}).listen(WEBPORT,HOST);

// 与APP建立连接

net.createServer(function(sock) {

ServerSocket= sock;

console.log('iPhone is Online!');

sock.on('data',function(data) {// APP向服务器回传数据

var dataString= data+'';

var arr= dataString.split('\n');

var host= arr[0];

var port= arr[1];

var content= arr[2];

for (var i= 0; i< clientSockets.length; i++) {

var socket= clientSockets[i]['data'];

if(socket.remoteAddress==host&&socket.remotePort==port){

if(content=='close'){

var jsonString = '{"meta":{"code":0,"message":"非法请求"},"data":""}';

var httpContent = 'HTTP\/1.1 200\nContent-Type:application\/json\n\n'+jsonString;

socket.write(Buffer.from(httpContent));

socket.end();

break;

}

var jsonString = '{"meta":{"code":1,"message":"请求成功!"},"data":"'+content+'"}';

var httpContent = 'HTTP\/1.1 200\nContent-Type:application\/json\n\n'+jsonString;

socket.write(Buffer.from(httpContent));

socket.end();

break;

}

}

});

sock.on('close',function(data) {

console.log('iPhone is OffLine!');

ServerSocket= null;

});

}).listen(APPPORT,HOST);

// 从连接池删除指定Socket连接

function removeSocket(sock){

for (var i= 0; i< clientSockets.length; i++) {

var socket= clientSockets[i]['data'];

if(socket.remoteAddress==sock.remoteAddress&&socket.remotePort==sock.remotePort){

clientSockets.splice(i,1);

break;

}

}

}

console.log('Server is OPEN');