public static void StartReadingRemote(
TcpProxy proxy,
TcpClient remoteClient,
TcpClient localClient)
{
try
{
NetworkStream stream = null;
try
{
stream = remoteClient.GetStream();
ReadStreamState readState = new ReadStreamState()
{
Callback = _readStreamCallback,
ReadStreamOwner = remoteClient,
ClientToReport = localClient,
Buffer = new byte[remoteClient.ReceiveBufferSize],
Offset = 0,
ReadStream = stream,
Proxy = proxy
};
// Begin write. Resume reading will be done in the callback.
stream.BeginRead(
readState.Buffer,
readState.Offset,
readState.Buffer.Length,
readState.Callback,
readState);
//--
}
catch (IOException ioEx)
{
if (remoteClient.Connected)
{
Console.WriteLine("IO EXCEPTION: StartReadingRemote head: {0}", ioEx.Message);
Console.ReadKey();
}
else
{
// Connect, after connected, try to send again.
ConnectState connState = new ConnectState()
{
Callback = _connectCallback,
Client = new TcpClient()
};
connState.ActionAfterConnect = delegate()
{
StartReadingRemote(proxy, connState.Client, localClient);
};
// FIXME: Depends if writing is being done on proxy client or proxy server ...
connState.Client.BeginConnect(
proxy._target.Address,
proxy._target.Port,
connState.Callback,
connState);
//---
}
}
catch (Exception e)
{
Console.WriteLine("EXCEPTION: StartReadingRemote head: {0}", e.Message);
Console.ReadKey();
}
}
catch (Exception e)
{
Console.WriteLine("EXCEPTION: StartReadingRemote tail: {0}", e.Message);
Console.ReadKey();
}
}
private static void StartWritingRemote(
TcpProxy proxy,
TcpClient clientWriter,
TcpClient clientToReport,
byte[] data)
{
try
{
NetworkStream clientStream = null;
try
{
// Can raise InvalidOperationException if tcpclient is disconnected
clientStream = clientWriter.GetStream();
// TODO: This might raise an exception, put in a try-catch
WriteStreamState writeState = new WriteStreamState()
{
Callback = _writeStreamCallback,
WriteStreamOwner = clientWriter,
WriteStream = clientStream,
Offset = 0,
Buffer = data,
ClientToReport = clientToReport,
Proxy = proxy
};
// Begin write. Resume reading will be done in the callback.
// Can raise IOException if tcpclient is disconnected
clientStream.BeginWrite(
writeState.Buffer,
writeState.Offset,
writeState.Buffer.Length,
writeState.Callback,
writeState);
//---
}
catch (Exception e)
{
if (clientWriter.Connected)
{
Console.WriteLine("EXCEPTION: StartWritingRemote head: {0}", e.Message);
Console.ReadKey();
}
else
{
// Connect new TcpClient, drop the current one, after connected, try to send again.
ConnectState connState = new ConnectState()
{
Callback = _connectCallback,
Client = new TcpClient()
};
connState.ActionAfterConnect = delegate()
{
StartWritingRemote(proxy, connState.Client, clientToReport, data);
};
// FIXME: Depends if writing is being done on proxy client or proxy server ...
connState.Client.BeginConnect(
proxy._target.Address,
proxy._target.Port,
connState.Callback,
connState);
//---
}
}
}
catch (Exception e)
{
Console.WriteLine("EXCEPTION: StartWritingRemote tail: {0}", e.Message);
Console.ReadKey();
}
}
