public override async Task <Stream> OpenStreamAsync(HostPortCollection dstSrv)
{
var socket = new TcpClient();
if (await SwallowExceptionUtils.TryExec(() => socket.ConnectAsync(_proxyInformation.Addr, _proxyInformation.Port)) && socket.Connected)
{
var buf = new byte[2];
int bytesRead = 0;
var nStream = socket.GetStream();
await nStream.WriteAsync(Socks5Payload, 0, Socks5Payload.Length);
bytesRead = await nStream.ReadAsync(buf, 0, 2);
if (bytesRead != 2)
{
Status = ProxyStatus.ProtocolError;
socket.Close();
socket.Dispose();
}
if (buf[0] == 0x05 && buf[1] == 0x00)
{
//Continue...
var cmd = ProxyCommandBuildUtils.BuildSocks5Command(0x01, dstSrv); //0x01 = SOCKS5_CMD_CONNECT
await nStream.WriteAsync(cmd, 0, cmd.Length);
Array.Clear(cmd, 0, cmd.Length);
bytesRead = await nStream.ReadAsync(cmd, 0, cmd.Length);
if (bytesRead > 2 && cmd[1] == 0x00)
{
return(nStream);
}
else
{
Status = ProxyStatus.ProtocolError;
Debugger.Break();
}
}
else
{
Status = buf[0] == 0x02 ? ProxyStatus.PasswordRequired : ProxyStatus.ProtocolError;
}
nStream?.Close();
nStream?.Dispose();
}
else
{
Status = ProxyStatus.ConnectionFail;
}
return(null);
}
public override async Task <Stream> OpenStreamAsync(HostPortCollection dstSrv)
{
var socket = new TcpClient();
if (await SwallowExceptionUtils.TryExec(() => socket.ConnectAsync(_proxyInformation.Addr, _proxyInformation.Port)) && socket.Connected)
{
var nStream = socket.GetStream();
var cmd = ProxyCommandBuildUtils.GenerateHttpConnectCommand(dstSrv.Host, dstSrv.Port);
await nStream.WriteAsync(cmd, 0, cmd.Length);
return(nStream);
}
return(null);
}
public override async Task <Stream> OpenStreamAsync(HostPortCollection dstSrv)
{
var socket = new TcpClient();
if (await SwallowExceptionUtils.TryExec(
() => socket.ConnectAsync(_proxyInformation.Addr, _proxyInformation.Port)) && socket.Connected)
{
var buf = new byte[8];
int bytesRead = 0;
var nStream = socket.GetStream();
var cmd = ProxyCommandBuildUtils.BuildSocks4Command(0x01, dstSrv); //SOCKS4_CMD_CONNECT
await nStream.WriteAsync(cmd, 0, cmd.Length);
bytesRead = await nStream.ReadAsync(buf, 0, buf.Length);
if (bytesRead > 1 && buf[1] == 0x5A)
{
return(nStream);
}
else
{
if (buf[1] == 0xFF)
{
//May be socks5?
Debugger.Break();
}
Status = ProxyStatus.ProtocolError;
}
}
else
{
Status = ProxyStatus.ConnectionFail;
}
socket.Close();
socket.Dispose();
return(null);
}