protected void BeginSendToServer(int length, AsyncSession session, AsyncCallback callback)
{
if (!_serverHeaderSent)
{
_serverHeaderSent = true;
// Append socks5 header
int len = Socks5Util.HeaderAddrLength(_destEndPoint);
Array.Copy(ConnetionRecvBuffer, 0, ConnetionRecvBuffer, len, length);
Socks5Util.FillHeaderAddr(ConnetionRecvBuffer, 0, _destEndPoint);
length += len;
}
_totalWrite += length;
int bytesToSend;
lock (_encryptionLock)
{
_encryptor.Encrypt(ConnetionRecvBuffer, length, _connetionSendBuffer, out bytesToSend);
}
_tcprelay.UpdateOutboundCounter(_server, bytesToSend);
_startSendingTime = DateTime.Now;
session.Remote.BeginSend(_connetionSendBuffer, 0, bytesToSend, SocketFlags.None, callback, session);
IStrategy strategy = _controller.GetCurrentStrategy();
strategy?.UpdateLastWrite(_server);
}
private void SendToServer(int length, AsyncSession session)
{
_totalWrite += length;
int bytesToSend;
lock (_encryptionLock)
{
try
{
_encryptor.Encrypt(_connetionRecvBuffer, length, _connetionSendBuffer, out bytesToSend);
}
catch (CryptoErrorException)
{
Logging.Debug("encryption error");
Close();
return;
}
}
_tcpRelay.UpdateOutboundCounter(_server, bytesToSend);
_startSendingTime = DateTime.Now;
session.Remote.BeginSend(_connetionSendBuffer, 0, bytesToSend, SocketFlags.None,
PipeRemoteSendCallback, new object[] { session, bytesToSend });
IStrategy strategy = _controller.GetCurrentStrategy();
strategy?.UpdateLastWrite(_server);
}