protected override void ProcessRequest(NetworkStream stream)
{
try
{
var reader = new BinaryReader(stream);
var type = (CommandType)reader.ReadByte();
if (type != CommandType.Connect && type != CommandType.Bind)
{
Dispoce(false);
return;
}
switch (type)
{
case CommandType.Connect:
{
int port = ReaderUtils.ReadInt16BE(reader);
byte[] host = reader.ReadBytes(4);
Username = ReadString(reader);
EndPoint = new IPEndPoint(new IPAddress(host), port);
RemoteSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
RemoteSocket.Connect(EndPoint);
if (RemoteSocket.Connected)
{
SendRespoce(0x5a);
return;
}
SendRespoce(0x5b);
break;
}
case CommandType.Bind:
{
// BUG: Potential bug
byte[] bytes = reader.ReadBytes(6);
int port = bytes[1] * 256 + bytes[0];
string host = bytes[2] + "." + bytes[3] + "." + bytes[4] + "." + bytes[5];
BindEndPoint = new IPEndPoint(IPAddress.Parse(host), port);
AcceptSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
AcceptSocket.Bind(new IPEndPoint(0, 0));
AcceptSocket.Listen(10);
SendRespoce(0x5a);
AcceptSocket.BeginAccept(OnAccept, null);
break;
}
}
}
catch
{
SendRespoce(0x5b);
}
}