Node.js , data getting cycled back and forth between server and client
I wrote a small node.js server using "net" module. the client and server code looks like follows Client.. socket is declared in global and invoked by this function. i am using a 3rd party API for sockets which works fine with php or C++ socket.so its surely not an API based bug.
function SocketAPI()
{
socket.onConnect = function(success)
{
if(success)
{
Connected = true;
}else{
alert("Failed to connect to server!");
}
}
socket.onClose = function()
{
alert("Connection lost to server!");
}
socket.onData = function(text)
{
if(text==">Send_AuthenTication")
{ // Tells the client to send authentication data
if(localStorage.ID)
{
socket.send(">"+localStorage.ID); //encrypted
}else{
socket.send("<");
}
}else if(text.substr(0,2)==">>"){
// User inforamation accept and apply it
Packet = JSON.parse(text.substr(2,text.length-2));
while(Users.length){ // users is an array which contains other peers connected to the server
Users.pop();
}
me = Packet;
me.Prepare();
Users.push(me.NameBOX);
Usrlst.ShowTab(0);
// Now make the socket only listen for output buffer.
socket.onData = function( Data ){
//alert(Data);
setTimeout( Jparse,100, Data );
}
}
}
socket.connect('localhost',1337);// makes connection
}
where Jparse is a function which parses the json sent by server according and data is sent using socket.send(input);
ANd the server looks like this ::
..
var server = net.createServer(function(socket){
socket.setEncoding('utf8');
socket.Peer = new Client();
socket.on('data',function(Data){
if(Data[0]==">") // this tells that the request is authentication event
{
// Loads from Pool
}else if(Data[0]=="<"){
NewUSER(this.Peer); // Makes new user
}
this.write(">>"+JSON.stringify(this.Peer)+"\0","utf8",function(){});
this.on('data',function(Data){
console.log(Data);
this.write(Data,'utf8',function(){});
});
});
socket.on('end',function(){
console.log("Connection End");
});
// Socket Closed by client/errors
socket.on('close',function(error){
cons开发者_高级运维ole.log("Connection is closed by Had errors?:"+error);
});
// Handshake started
socket.on("connect",function()
{ // add server connection in here aha we now have a new user.
sys.puts("Connection from"+ socket.remoteAddress);
this.write(">Send_AuthenTication\0",'utf8',function(){});
});
});
// starting the server.
server.listen(1337,"localhost");
When i send data using the client HTML Page the data goes to server and comes back as its supposed to but the process becomes recurrent and i get the same recieved more then once on both the sides i mean the server and the client ..
say. if i send "hello" from client it recieves 2-3 "hello" back on client side from server.. an importing thing that i just noticed is the number of recurrsions increases everytime i send a data to server.
Anyone got a clue on whats wrong ?
Every single time you execute the outer on('data' ...
, you're adding another on('data' ...
element; that's why you're getting the increased number at each request. You're modifying your handler structure to add handlers in your handler.
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