/// <summary>
/// Parse the kind of data we are receiving
/// </summary>
/// <returns></returns>
private MessageType ReadMessageType(ClientTunnel client, byte[] data)
{
if (!client.Authenticated && client.AuthMethod == Method.Null)
{
return(MessageType.MethodRequest);
}
else if (!client.Authenticated && client.AuthMethod == Method.UserPassword)
{
return(MessageType.AuthRequest);
}
else if (data[0] == 0x05)
{
return(MessageType.DataRequest);
}
else
{
return(MessageType.Null);
}
}
private void AcceptCallback(IAsyncResult ar)
{
try
{
if (disposedValue)
{
return;
}
if (ar.AsyncState is TcpListener serverSocket)
{
TcpClient clientTcpClient = serverSocket.EndAcceptTcpClient(ar);
var client = new ClientTunnel(clientTcpClient);
ThreadPool.QueueUserWorkItem((WaitCallback) =>
{
using (clientTcpClient)
{
using (client)
{
Clients.Add(client);
NonBlockingConsole.WriteLine($"Client {clientTcpClient?.Client?.RemoteEndPoint} trying to connect, handling on thread {Thread.CurrentThread.ManagedThreadId}");
client?.Listen(); //Blocking async
Clients.Remove(client);
}
}
});
//Keep listening incoming connections.
serverSocket.BeginAcceptTcpClient(AcceptCallback, Socks5Server);
}
if (disposedValue)
{
return;
}
}
catch (Exception ex)
{
NonBlockingConsole.WriteLine(ex.Message);
}
}
