public void StartTCPListener()
{
if (isRunning)
{
return;
}
ushort port = Server.Instance.Port;
IPAddress localAddr = IPAddress.Parse("0.0.0.0");
TcpListener tcpListener = null;
try
{
tcpListener = new TcpListener(localAddr, port);
tcpListener.Start();
Server.Instance.Port = (ushort)((IPEndPoint)tcpListener.LocalEndpoint).Port; //get the port we are using.
isRunning = true;
ProcessIcon.Instance.UpdateIcon();
while (true)
{
try
{
//Accept the pending client connection and return a TcpClient object initialized for communication.
TcpClient tcpClient = tcpListener.AcceptTcpClient();
TcpUser user = new TcpUser(tcpClient);
connections.Add(user);
Task.Factory.StartNew(() =>
{
ClientThread(user);
});
Server.Instance.UpdateHTML();
}
catch (SocketException e)
{
Console.WriteLine("Socket Exception: {0}", e);
}
}
}
catch (SocketException e)
{
Console.WriteLine("Critical Error: Socket not started");
Console.WriteLine("Socket Exception: {0}", e);
}
finally
{
// Stop listening for new clients.
tcpListener.Stop();
isRunning = false;
ProcessIcon.Instance.UpdateIcon();
}
}
void ClientThread(TcpUser user)
{
TcpClient client = user._tcpclient; //less renaming
bool goturl = false;
// Buffer for reading data
Byte[] bytes = new Byte[1024];
String data = null;
NetworkStream stream = client.GetStream();
try
{
client.ReceiveTimeout = 20000;
data = null;
// Get a stream object for reading and writing
int i;
// Loop to receive all the data sent by the client.
while ((i = stream.Read(bytes, 0, bytes.Length)) != 0)
{
// Translate data bytes to a ASCII string.
data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
//Console.WriteLine("Received: {0}", data);
//check header for request type
String HttpRequestType = "";;
string[] Lines = data.Replace("\r\n", "\n").Split('\n');
int Ret;
//Extract requested URL
if (Lines.Length > 0)
{
//Parse the Http Request Type
Ret = Lines[0].IndexOf(' ');
if (Ret > 0)
{
HttpRequestType = Lines[0].Substring(0, Ret);
Lines[0] = Lines[0].Substring(Ret).Trim();
if (!goturl)
{
user.SetUrl(Lines);
}
}
if (HttpRequestType.ToUpper().Equals("GET"))
{
int id = 0;
if (Lines[0].ToUpper().Contains("OUTPUT.HTML"))
{
id = 1;
}
SendWebpage(stream, id);
}
else if (HttpRequestType.ToUpper().Equals("POST"))
{
int index = data.IndexOf("\r\n\r\n");
String m_HttpPost = data.Substring(index + 4);
int status = Server.Instance.ParseCommand(m_HttpPost);
switch (status)
{
case 0:
SendRedirect(stream, user.Host);
break;
case -1:
SendBad(stream, user.Host, strError);
break;
case -2:
SendBad(stream, user.Host, strBadKey);
break;
default:
break;
}
}
}
}
// Shutdown and end connection
}
catch (SocketException e)
{
Console.WriteLine("SocketException: {0}", e);
}
catch (System.IO.IOException e)
{
Console.WriteLine("IOException: {0}", e);
}
finally
{
bytes = null;
data = null;
stream.Flush();
stream.Dispose();
// Stop listening for new clients.
connections.Remove(user);
client.Close();
//Console.WriteLine("#CLOSED CONNECTION#");
Server.Instance.UpdateHTML();
}
}
