private void ButtonStartProxy_Click(object sender, RoutedEventArgs e)
{
this.ButtonStartProxy.Visibility = Visibility.Hidden;
IPAddress host = Dns.GetHostAddresses(Dns.GetHostName()).Where(ip =>
ip.AddressFamily == AddressFamily.InterNetwork && !ip.ToString().StartsWith("172")).FirstOrDefault();
SocketProxy proxy = new SocketProxy(host);
proxy.SocketLog += Proxy_OnLog;
try
{
int port = int.Parse(this.TextBoxPort.Text);
proxy.InitializeServer(port);
proxy.StartListening();
}
catch (Exception ex)
{
proxy.Close();
//MessageBox.Show("Server window start listening error: " + ex.Message);
Proxy_OnLog(this, new SocketLogEventArgs("Proxy window start listening error: " + ex.Message, LogLevel.Error));
}
}
public override bool Handle(byte[] firstPacket, int length, SocketProxy socket, object state)
{
if (socket.ProtocolType != ProtocolType.Tcp)
{
return(false);
}
try
{
string request = Encoding.UTF8.GetString(firstPacket, 0, length);
string[] lines = request.Split('\r', '\n');
bool hostMatch = false, pathMatch = false, useSocks = false;
bool secretMatch = PacSecret.IsNullOrEmpty();
foreach (string line in lines)
{
string[] kv = line.Split(new char[] { ':' }, 2);
if (kv.Length == 2)
{
if (kv[0] == "Host")
{
if (kv[1].Trim() == ((IPEndPoint)socket.LocalEndPoint).ToString())
{
hostMatch = true;
}
}
//else if (kv[0] == "User-Agent")
//{
// // we need to drop connections when changing servers
// if (kv[1].IndexOf("Chrome") >= 0)
// {
// useSocks = true;
// }
//}
}
else if (kv.Length == 1)
{
if (line.IndexOf("pac", StringComparison.Ordinal) >= 0)
{
pathMatch = true;
}
if (!secretMatch)
{
if (line.IndexOf(PacSecret, StringComparison.Ordinal) >= 0)
{
secretMatch = true;
}
}
}
}
if (hostMatch && pathMatch)
{
if (!secretMatch)
{
socket.Close(); // Close immediately
}
else
{
SendResponse(firstPacket, length, socket, useSocks);
}
return(true);
}
return(false);
}
catch (ArgumentException)
{
return(false);
}
}
/// <summary>
/// Destroy the current socket.
/// </summary>
/// <remarks>
/// Any outstanding messages physically received from the network but not yet received by the application
/// with Receive shall be discarded. The behaviour for discarding messages sent by the application
/// with Send but not yet physically transferred to the network depends on the value of
/// the <see cref="Linger"/> socket option.
/// </remarks>
/// <exception cref="ZmqSocketException">The underlying socket object is not valid.</exception>
public void Close()
{
HandleProxyResult(_socketProxy.Close());
}
private void ProcessClientRequest(object state)
{
var client = (Socket)state;
var message = new AsynchReceiver().Receive(client, false, "");
Action<HttpMessage, ISocketProxy> action = ReturnNamedResourceAsWebPage;
if (Steps.Count == 0 || Steps.Count < _stepIndex)
{
Console.WriteLine("no defined action for step " + (_stepIndex++) + " - trying ReturnNamedResourceAsWebPage");
}
else
{
action = Steps[_stepIndex++];
}
var proxy = new SocketProxy(client);
action(message, proxy);
proxy.Close();
}
private void DisposeSocket()
{
_connection.Shutdown(SocketShutdown.Both);
_connection.Close();
}