"Romain A" <anonymous@discussions.microsoft.com> wrote in message
news:031701c4bd8d$6fa8ac20$a501280a@phx.gbl...
> I am trying to move an existing piece of code which use
> System.Net.Sockets.Socket (.NET 1.1) into something which
> would use a securesocket.
>
> I have managed to use the SecureSocket made by
> http://www.mentalis.org/soft/projects/ssocket/
> when making direct connection to a server, however I do
> not seem capable of connecting through a proxy server.
>
> Has anyone any exerience in the matter.
>
> I have posted the code which I have modified from the
> example given in MSDN for the Socket class and the example
> provided by Mentalis.
>
> The following code always thrown an exception: "No
> connection could be made because the target machine
> actively refused it" from the Mentalis class.
>
> I am thinking the problem could be with the actual
> mentalis class, Would you know of any other 3rd party I
> could use ?
>
> Any other ideas welcome.
>
> Regards
>
> Romain
>
> static SecurityOptions options = new
> SecurityOptions(
> SecureProtocol.Ssl3 |
> SecureProtocol.Tls1, // use SSL3 or TLS1
>
> null, // do not use
> client authentication
>
> ConnectionEnd.Client, // this is
> the client side
>
> CredentialVerification.None, // do not
> check the certificate -- this should not be used in a real-
> life application :-)
>
> null, // not used
> with automatic certificate verification
> "www.freessl.com",
> // this is the common name of the Microsoft web server
>
> SecurityFlags.Default, // use the
> default security flags
>
> SslAlgorithms.ALL, // only use
> secure ciphers
> null);
>
> private static SecureSocket connectSocket(string
> server, int port)
> {
>
> SecureSocket s = null;
> IPHostEntry iphe = null;
>
> try
> {
> // Get host related information.
> iphe = Dns.Resolve(server);
>
> // Loop through the AddressList to obtain
> the supported AddressFamily. This is to avoid
> // an exception to be thrown if the host
> IP Address is not compatible with the address family
> // (typical in the IPv6 case).
> foreach(IPAddress ipad in iphe.AddressList)
> {
> IPEndPoint ipe = new IPEndPoint(ipad,
> port);
>
> SecureSocket tmpS =
> //new Socket(ipe.AddressFamily,
> SocketType.Stream, ProtocolType.Tcp);
> new SecureSocket
> (AddressFamily.InterNetwork, SocketType.Stream,
> ProtocolType.Tcp, options);
>
> tmpS.Connect(ipe);
>
> if(tmpS.Connected)
> {
> s = tmpS;
> break;
> }
> else
> continue;
> }
> }
>
> catch(SocketException e)
> {
> Console.WriteLine("SocketException
> caught!!!");
> Console.WriteLine("Source : " + e.Source);
> Console.WriteLine("Message : " +
> e.Message);
> }
> catch(Exception e)
> {
> Console.WriteLine("Exception caught!!!");
> Console.WriteLine("Source : " + e.Source);
> Console.WriteLine("Message : " +
> e.Message);
> }
> return s;
> }
>
> // This method requests the home page content for
> the passed server.
> // It displays the number of bytes received and
> the page content.
> private static string socketSendReceive(string
> server, int port)
> {
> //Set up variables and String to write to the
> server.
> Encoding ASCII = Encoding.ASCII;
> string Get = "GET
> https://www.freessl.com/test/freessl.html HTTP/1.0
> \r\nHost: www.freessl.com\r\nConnection: Close\r\nUser-
> Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
> \r\n\r\n";
> Byte[] ByteGet = ASCII.GetBytes(Get);
> Byte[] RecvBytes = new Byte[512];
> String strRetPage = null;
>
> // Create a socket connection with the
> specified server and port.
> SecureSocket s = connectSocket(server, port);
>
> if (s == null)
> return ("Connection failed : 'Connected'
> is false !");
>
> try
> {
> // Send request to the server.
> s.Send(ByteGet, ByteGet.Length, 0);
>
> // Receive the server home page content.
> Int32 bytes = s.Receive(RecvBytes,
> RecvBytes.Length, 0);
>
> // Read the first 256 bytes.
> strRetPage = "HTML page on " + server
> + ":\r\n";
> strRetPage = strRetPage + ASCII.GetString
> (RecvBytes, 0, bytes);
>
> while (bytes > 0)
> {
> bytes = s.Receive(RecvBytes,
> RecvBytes.Length, 0);
> strRetPage = strRetPage +
> ASCII.GetString(RecvBytes, 0, bytes);
> }
> }
> catch(SocketException e)
> {
> Console.WriteLine("SocketException
> caught!!!");
> Console.WriteLine("Source : " + e.Source);
> Console.WriteLine("Message : " +
> e.Message);
> }
> catch(Exception e)
> {
> Console.WriteLine("Exception caught!!!");
> Console.WriteLine("Source : " + e.Source);
> Console.WriteLine("Message : " +
> e.Message);
> }
> return strRetPage;
> }
>
> public static void Main(string[] args)
> {
> string host;
> int port = 443;
>
> if (args.Length == 0)
> // If no server name is passed as argument
> to this program, use the current
> // host name as default.
> host = Dns.GetHostName();
> else
> host = args[0];
>
> host = "dsproxy";
> //host = "www.freessl.com";
>