public void Start(Socket socket)
{
this._local = socket;
try
{
_remote = new Socket(_remoteEP.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
_remote.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
_id = System.Threading.Interlocked.Increment(ref _maxid);
// Connect to the remote endpoint.
_relay.onWriteLog(new WriteLogEventArgs($"\r\n{_id}: 连接 {_remoteEP} ...\r\n"));
_remoteTime = Environment.TickCount;
_remote.BeginConnect(_remoteEP, new AsyncCallback(ConnectCallback), null);
}
catch (Exception e)
{
_relay.onError(new RelayErrorEventArgs(e));
this.Close();
}
}
private void Socks5Handshake1RecvCallback(IAsyncResult ar)
{
if (_closed)
{
return;
}
try
{
var len = _remote.EndReceive(ar);
if (len == 2)
{
if (remoteRecvBuffer[0] == 0x05 && remoteRecvBuffer[1] == 0x00)
{
var bytes = (byte[])((object[])ar.AsyncState)[0];
var bytesLen = (int)((object[])ar.AsyncState)[1];
_remote.BeginSend(bytes,
SOCKS5_FIRST_PACKAGE_SIZE,
bytesLen - SOCKS5_FIRST_PACKAGE_SIZE,
SocketFlags.None,
new AsyncCallback(Socks5Handshake2SendCallback), ar.AsyncState);
}
else
{
_relay.onWriteLog(new WriteLogEventArgs($"{_id}: 代理需要认证\r\n"));
this.Close();
}
}
else
{
this.Close();
}
}
catch (Exception e)
{
_relay.onError(new RelayErrorEventArgs(e));
this.Close();
}
}