private void AcceptClientConnection(SISession session, Socks5Server server, int timeout = -1)
{
SocksRequest request = server.Accept(timeout);
if (request.Command != SocksCommand.Connect)
{
throw new Socks5Exception("Unexpected SOCKS5 command: " + request.Command);
}
if (request.ATyp != ATyp.Domain)
{
throw new Socks5Exception("Unexpected ATyp: " + request.ATyp);
}
string destination = (string)request.Destination;
if (this.Sha1(session.Sid + base.im.Jid + session.To) != destination)
{
throw new Socks5Exception("Hostname hash mismatch.");
}
server.Reply(ReplyStatus.Succeeded, destination, request.Port);
}
public static socks5.Socks.SocksError SendRequest(Socks5Client cli, string ipOrDomain, int port)
{
AddressType type;
IPAddress ipAddress;
if (!IPAddress.TryParse(ipOrDomain, out ipAddress))
{
//it's a domain. :D (hopefully).
type = AddressType.Domain;
}
else
{
type = AddressType.IP;
}
SocksRequest sr = new SocksRequest(StreamTypes.Stream, type, ipOrDomain, port);
//send data.
byte[] p = sr.GetData(false);
p[1] = 0x01;
cli.Client.Send(p);
byte[] buffer = new byte[512];
cli.Client.Receive(buffer, 0, buffer.Length);
return((SocksError)buffer[1]);
}
/// <summary> /// Override the connection, to do whatever you want with it. Client is a wrapper around a socket. /// </summary> /// <param name="sr">The original request params.</param> /// <returns></returns> public abstract Client OnConnectOverride(SocksRequest sr);
/// <summary> /// Handle request callback. /// </summary> /// <param name="Request"></param> /// <returns>Return true to allow the connection, return false to deny it.</returns> public abstract bool OnConnect(SocksRequest Request);