public static SocksError SendRequest(Client cli, SocksEncryption enc, 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;
//process data.
cli.Send(enc.ProcessOutputData(p, 0, p.Length));
byte[] buffer = new byte[512];
//process input data.
int recv = cli.Receive(buffer, 0, buffer.Length);
if (recv == -1)
{
return(SocksError.Failure);
}
byte[] buff = enc.ProcessInputData(buffer, 0, recv);
return((SocksError)buff[1]);
}
public static SocksRequest RequestTunnel(SocksClient client, SocksEncryption ph)
{
byte[] data;
int recv = Receive(client.Client, out data);
byte[] buff = ph.ProcessInputData(data, 0, recv);
if (buff == null || (HeaderTypes)buff[0] != HeaderTypes.Socks5)
{
return(null);
}
switch ((StreamTypes)buff[1])
{
case StreamTypes.Stream:
{
int fwd = 4;
StringBuilder address = new StringBuilder();
switch ((AddressType)buff[3])
{
case AddressType.IP:
{
for (int i = 4; i < 8; i++)
{
//grab IP.
address.Append(Convert.ToInt32(buff[i]).ToString() + (i != 7 ? "." : ""));
}
fwd += 4;
}
break;
case AddressType.Domain:
{
int domainlen = Convert.ToInt32(buff[4]);
address.Append(Encoding.ASCII.GetString(buff, 5, domainlen));
fwd += domainlen + 1;
}
break;
case AddressType.IPv6:
//can't handle IPV6 traffic just yet.
return(null);
}
byte[] po = new byte[2];
Array.Copy(buff, fwd, po, 0, 2);
Int16 x = BitConverter.ToInt16(po, 0);
int port = Convert.ToInt32(IPAddress.NetworkToHostOrder(x));
port = (port < 1 ? port + 65536 : port);
return(new SocksRequest(StreamTypes.Stream, (AddressType)buff[3], address.ToString(), port));
}
default:
//not supported.
return(null);
}
}
void Client_onDataReceived(object sender, DataEventArgs e)
{
e.Request = this.ModifiedReq;
//this should be packet header.
try
{
int torecv = BitConverter.ToInt32(e.Buffer, e.Offset);
byte[] newbuff = new byte[torecv];
int recv = Client.Client.Receive(newbuff, 0, newbuff.Length);
if (recv == torecv)
{
//yey
//process packet.
byte[] output = se.ProcessInputData(newbuff, 0, recv);
e.Buffer = output;
e.Offset = 0;
e.Count = output.Length;
//receive full packet.
foreach (DataHandler f in Plugins)
{
if (f.Enabled)
{
f.OnDataSent(this, e);
}
}
RemoteClient.SendAsync(e.Buffer, e.Offset, e.Count);
if (!Client.Client.Receiving)
{
Client.Client.ReceiveAsync();
}
if (!RemoteClient.Receiving)
{
RemoteClient.ReceiveAsync();
}
}
else
{
throw new Exception();
}
}
catch
{
//disconnect.
Client.Client.Disconnect();
RemoteClient.Disconnect();
}
}
void Client_onDataReceived(object sender, DataEventArgs e)
{
e.Request = this.ModifiedReq;
//this should be packet header.
try
{
int packetsize = BitConverter.ToInt32(e.Buffer, 0);
byte[] newbuff = new byte[packetsize];
//yey
//process packet.
byte[] output = se.ProcessInputData(e.Buffer, 4, packetsize);
e.Buffer = null;
e.Buffer = output;
e.Offset = 0;
e.Count = output.Length;
//receive full packet.
foreach (DataHandler f in Plugins)
{
f.OnClientDataReceived(this, e);
}
Client.Server.TriggerClientDataReceived(e);
RemoteClient.SendAsync(e.Buffer, e.Offset, e.Count);
if (!Client.Client.Receiving)
{
Client.Client.ReceiveAsync();
}
if (!RemoteClient.Receiving)
{
RemoteClient.ReceiveAsync();
}
}
catch
{
//disconnect.
Client.Client.Disconnect();
RemoteClient.Disconnect();
}
}
