/// <summary>
/// Kills this connection
/// </summary>
/// <param name="softKill">If true will perform a shutdown before closing, otherwise close will happen with lingering disabled</param>
public void Kill(bool softKill)
{
if (softKill)
{
// Soft close, do shutdown first
IncomingConnection.Shutdown(SocketShutdown.Both);
}
else
{
// Hard close - force no lingering
IncomingConnection.LingerState = new LingerOption(true, 0);
}
IncomingConnection.Dispose();
OutgoingConnection.Dispose();
}
/// <summary>
/// Handles the bidirectional data transfers
/// </summary>
private void _ProcessorHandler()
{
try
{
Server.Log("Connecting to {0}...", Server.RemoteEndpoint);
Server.Log("Remote end point address family {0}", Server.RemoteEndpoint.AddressFamily);
// Establish outgoing connection to the proxy
OutgoingConnection = new Socket(Server.RemoteEndpoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
Task connectTask = OutgoingConnection.ConnectAsync(Server.RemoteEndpoint.Address, Server.RemoteEndpoint.Port);
connectTask.Wait(1000);
// Writing connection information
Server.Log("Connection established");
// Obtain network streams
NetworkStream outStream = new NetworkStream(OutgoingConnection, true);
NetworkStream inStream = new NetworkStream(IncomingConnection, true);
// Ensure copying isn't paused
Server.PermitCopying.Wait();
// Tunnel the traffic between two connections
while (IncomingConnection.Connected && OutgoingConnection.Connected && !Server.StopRequested)
{
bool DataAvailable = false;
// Check incoming buffer
if (inStream.DataAvailable)
{
DataAvailable = true;
CopyData(inStream, "client", outStream, "server", Server.SimulatedInDelay);
}
// Check outgoing buffer
if (outStream.DataAvailable)
{
DataAvailable = true;
CopyData(outStream, "server", inStream, "client", Server.SimulatedOutDelay);
}
// Pause
if (DataAvailable)
{
// Poll the sockets
if ((IncomingConnection.Poll(100, SelectMode.SelectRead) && !inStream.DataAvailable) ||
(OutgoingConnection.Poll(100, SelectMode.SelectRead) && !outStream.DataAvailable))
{
break;
}
Thread.Sleep(10);
}
else
{
Thread.Sleep(1);
}
// Ensure copying isn't paused
Server.PermitCopying.Wait();
}
}
catch (Exception ex)
{
Server.Log(ex.ToString());
}
try
{
// Disconnect the client
IncomingConnection.Dispose();
OutgoingConnection.Dispose();
}
catch (Exception) { }
// Logging disconnection message
Server.Log("Connection closed");
// Notify parent
Server.NotifyClientDisconnection(this);
}