public void Open()
{
if (ModifiedReq.Address == null || ModifiedReq.Port <= -1) { Client.Client.Disconnect(); return; }
#if DEBUG
Console.WriteLine("{0}:{1}", ModifiedReq.Address, ModifiedReq.Port);
#endif
foreach (ConnectSocketOverrideHandler conn in PluginLoader.LoadPlugin(typeof(ConnectSocketOverrideHandler)))
{
Client pm = conn.OnConnectOverride(ModifiedReq);
if (pm != null)
{
//check if it's connected.
if (pm.Sock.Connected)
{
RemoteClient = pm;
//send request right here.
byte[] shit = Req.GetData(true);
shit[1] = 0x00;
//process packet.
byte[] output = se.ProcessOutputData(shit, 0, shit.Length);
//gucci let's go.
Client.Client.Send(output);
ConnectHandler(null);
return;
}
}
}
var socketArgs = new SocketAsyncEventArgs { RemoteEndPoint = new IPEndPoint(ModifiedReq.IP, ModifiedReq.Port) };
socketArgs.Completed += socketArgs_Completed;
RemoteClient.Sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
if (!RemoteClient.Sock.ConnectAsync(socketArgs))
ConnectHandler(socketArgs);
}
public DataEventArgs(Client client, byte[] buffer, int count)
{
Client = client;
Buffer = buffer;
Count = count;
Offset = 0;
}
public SocksTunnel(SocksClient p, SocksRequest req, int packetSize, int timeout)
{
RemoteClient = new Client(new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp), PacketSize);
Client = p;
Req = req;
PacketSize = packetSize;
Timeout = timeout;
}
public DataEventArgs(Client client, byte[] buffer, int count, SocksRequest req = null)
{
Client = client;
Buffer = buffer;
Count = count;
Offset = 0;
Request = req;
}
public void ConnectAsync()
{
//
p = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
Client = new Client(p, 2048);
Client.onClientDisconnected += Client_onClientDisconnected;
Client.Sock.BeginConnect(new IPEndPoint(ipAddress, Port), new AsyncCallback(onConnected), Client);
//return status?
}
public SocksSpecialTunnel(SocksClient p, SocksEncryption ph, SocksRequest req, SocksRequest req1, int packetSize, int timeout)
{
RemoteClient = new Client(new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp), PacketSize);
Client = p;
Req = req;
ModifiedReq = req1;
PacketSize = packetSize;
Timeout = timeout;
se = ph;
}
public override socks5.TCP.Client OnConnectOverride(socks5.Socks.SocksRequest sr)
{
if (!IsGfwFucked(sr.Address))
return null;
var proxysock = new Socket(SocketType.Stream, ProtocolType.Tcp);
HttpWebRequest httpreq = HttpWebRequest.CreateHttp(sr.Address);
WebProxy wp = httpreq.Proxy as WebProxy;
wp.Address=new Uri(proxyurl);
var response = httpreq.GetResponse();
var client = new Client(new Socket(SocketType.Stream, ProtocolType.Tcp), 65535);
return client;
}
void AcceptClient(IAsyncResult res)
{
try
{
TcpListener px = (TcpListener)res.AsyncState;
Socket x = px.EndAcceptSocket(res);
Task.Set();
Client f = new Client(x, PacketSize);
f.onClientDisconnected += onClientDisconnected;
onClientConnected(this, new ClientEventArgs(f));
}
catch(Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
void AcceptClient(IAsyncResult res)
{
try
{
TcpListener px = (TcpListener)res.AsyncState;
Socket x = px.EndAcceptSocket(res);
Task.Set();
Client f = new Client(x, PacketSize);
//f.onClientDisconnected += onClientDisconnected;
//f.onDataReceived += onDataReceived;
//f.onDataSent += onDataSent;
onClientConnected(this, new ClientEventArgs(f));
}
catch(Exception ex)
{
Console.WriteLine(ex.ToString());
//server stopped or client errored?
}
}
public bool Connect()
{
try
{
p = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
Client = new Client(p, 65535);
Client.Sock.Connect(new IPEndPoint(ipAddress, Port));
//try the greeting.
//Client.onDataReceived += Client_onDataReceived;
if(Socks.DoSocksAuth(this, Username, Password))
if (Socks.SendRequest(Client, enc, Dest, Destport) == SocksError.Granted)
return true;
return false;
}
catch
{
return false;
}
}
public ClientEventArgs(Client client)
{
Client = client;
}
public SocksClient(Client cli)
{
Client = cli;
}
public static byte[] Receive(Client client)
{
byte[] buffer = new byte[2048];
int received = client.Receive(buffer, 0, buffer.Length);
if (received != -1)
{
return buffer;
}
else
return null;
}
public static AuthTypes Greet(Client client, IList<AuthTypes> supportedAuthTypes = null)
{
if (supportedAuthTypes == null)
supportedAuthTypes = new[] { AuthTypes.None, AuthTypes.Login, AuthTypes.SocksEncrypt };
// https://www.ietf.org/rfc/rfc1928.txt [Page 3]
var bytes = new byte[supportedAuthTypes.Count + 2];
bytes[0] = 0x05; // protocol version - socks5
bytes[1] = (byte)supportedAuthTypes.Count;
for (var i = 0; i < supportedAuthTypes.Count; i++)
{
bytes[i + 2] = (byte)supportedAuthTypes[i];
}
client.Send(bytes);
byte[] buffer = new byte[512];
int received = client.Receive(buffer, 0, buffer.Length);
if(received > 0)
{
//check for server version.
if (buffer[0] == 0x05)
{
return (AuthTypes)buffer[1];
}
}
return 0;
}
public static AuthTypes Greet(Client client)
{
client.Send(new byte[] { 0x05, Convert.ToByte(3), (byte)AuthTypes.None, (byte)AuthTypes.Login, (byte)AuthTypes.SocksEncrypt });//(byte)AuthTypes.SocksBoth });//(byte)AuthTypes.SocksCompress
byte[] buffer = new byte[512];
int received = client.Receive(buffer, 0, buffer.Length);
if(received > 0)
{
//check for server version.
if (buffer[0] == 0x05)
{
return (AuthTypes)buffer[1];
}
}
return 0;
}
public static socks5.Socks.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 int SendLogin(Client cli, string Username, string Password)
{
byte[] x = new byte[Username.Length + Password.Length + 3];
int total = 0;
x[total++] = 0x01;
x[total++] = Convert.ToByte(Username.Length);
Buffer.BlockCopy(Encoding.ASCII.GetBytes(Username), 0, x, 2, Username.Length);
total += Username.Length;
x[total++] = Convert.ToByte(Password.Length);
Buffer.BlockCopy(Encoding.ASCII.GetBytes(Password), 0, x, total, Password.Length);
//send request.
cli.Send(x);
byte[] buffer = new byte[512];
cli.Receive(buffer, 0, buffer.Length);
if (buffer[1] == 0x00)
{
return 1;
}
else if (buffer[1] == 0xFF)
{
return 0;
}
return 0;
}
private void onConnected(IAsyncResult res)
{
Client = (Client)res.AsyncState;
try
{
Client.Sock.EndConnect(res);
}
catch
{
this.OnConnected(this, new Socks5ClientArgs(null, SocksError.Failure));
return;
}
if (Socks.DoSocksAuth(this, Username, Password))
{
SocksError p = Socks.SendRequest(Client, enc, Dest, Destport);
Client.onDataReceived += Client_onDataReceived;
this.OnConnected(this, new Socks5ClientArgs(this, p));
}
else
this.OnConnected(this, new Socks5ClientArgs(this, SocksError.Failure));
}
public static int Receive(Client client, out byte[] buffer)
{
buffer = new byte[65535];
return client.Receive(buffer, 0, buffer.Length);
}
public static SocksEncryption RequestSpecialMode(List<AuthTypes> auth, Client client)
{
//select mode, do key exchange if encryption, or start compression.
if (auth.Contains(AuthTypes.SocksBoth))
{
//tell client that we chose socksboth.
client.Send(new byte[] { (byte)HeaderTypes.Socks5, (byte)AuthTypes.SocksBoth });
//wait for public key.
SocksEncryption ph = new SocksEncryption();
ph.GenerateKeys();
//wait for public key.
byte[] buffer = new byte[4096];
int keysize = client.Receive(buffer, 0, buffer.Length);
//store key in our encryption class.
ph.SetKey(buffer, 0, keysize);
//send key.
client.Send(ph.GetPublicKey());
//now we give them our key.
client.Send(ph.ShareEncryptionKey());
//send more.
int enckeysize = client.Receive(buffer, 0, buffer.Length);
//decrypt with our public key.
byte[] newkey = new byte[enckeysize];
Buffer.BlockCopy(buffer, 0, newkey, 0, enckeysize);
ph.SetEncKey(ph.key.Decrypt(newkey, false));
ph.SetType(AuthTypes.SocksBoth);
//ready up our client.
return ph;
}
else if (auth.Contains(AuthTypes.SocksEncrypt))
{
//tell client that we chose socksboth.
client.Send(new byte[] { (byte)HeaderTypes.Socks5, (byte)AuthTypes.SocksEncrypt });
//wait for public key.
SocksEncryption ph = new SocksEncryption();
ph.GenerateKeys();
//wait for public key.
byte[] buffer = new byte[4096];
int keysize = client.Receive(buffer, 0, buffer.Length);
//store key in our encryption class.
ph.SetKey(buffer, 0, keysize);
ph.SetType(AuthTypes.SocksBoth);
//ready up our client.
return ph;
}
else if (auth.Contains(AuthTypes.SocksCompress))
{
//start compression.
client.Send(new byte[] { (byte)HeaderTypes.Socks5, (byte)AuthTypes.SocksCompress });
SocksEncryption ph = new SocksEncryption();
ph.SetType(AuthTypes.SocksCompress);
//ready
}
else if (auth.Contains(AuthTypes.Login))
{
SocksEncryption ph = new SocksEncryption();
ph.SetType(AuthTypes.Login);
return ph;
}
return null;
}
