Exemplo n.º 1
0
        public void StartReceiving(ITextChanger ipText)
        {
            // Establish the local endpoint for the socket.
            // The DNS name of the computer
            // running the listener is "host.contoso.com".
            IPHostEntry ipHostInfo    = Dns.GetHostEntry(Dns.GetHostName());
            IPAddress   ipAddress     = ipHostInfo.AddressList[0];
            IPEndPoint  localEndPoint = new IPEndPoint(ipAddress, 13000);

            ipText.ChangeText(ipAddress.MapToIPv4().ToString());

            // Create a TCP/IP socket.
            Socket listener = new Socket(ipAddress.AddressFamily,
                                         SocketType.Stream, ProtocolType.Tcp);

            // Bind the socket to the local endpoint and listen for incoming connections.
            try
            {
                listener.Bind(localEndPoint);
                listener.Listen(100);

                while (true)
                {
                    // Set the event to nonsignaled state.
                    AllDone.Reset();

                    // Start an asynchronous socket to listen for connections.
                    Logger.GetInstance().NotifyAll("Waiting for a connection...");
                    listener.BeginAccept(
                        new AsyncCallback(AcceptCallback),
                        listener);

                    // Wait until a connection is made before continuing.
                    AllDone.WaitOne();
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.ToString());
            }
        }
Exemplo n.º 2
0
        public void StartClient(string messageToSend, ITextChanger ipTextChanger)
        {
            // Connect to a remote device.
            try
            {
                // Establish the remote endpoint for the socket.
                IPHostEntry ipHostInfo = Dns.GetHostEntry(Dns.GetHostName());
                IPAddress   ipAddress  = IPAddress.Parse(server);
                IPEndPoint  remoteEP   = new IPEndPoint(ipAddress, port);

                ipTextChanger.ChangeText(ipAddress.MapToIPv4().ToString());

                // Create a TCP/IP socket.
                Socket client = new Socket(ipAddress.AddressFamily,
                                           SocketType.Stream, ProtocolType.Tcp);

                // Connect to the remote endpoint.
                client.BeginConnect(remoteEP,
                                    new AsyncCallback(connectCallback), client);
                connectDone.WaitOne();

                send(client, messageToSend + "<EOF>");
                sendDone.WaitOne();

                // Receive the response from the remote device.
                receive(client);
                receiveDone.WaitOne();

                // Write the response to the console.
                Logger.GetInstance().WriteLog("Response received : " + response);

                // Release the socket.
                client.Shutdown(SocketShutdown.Both);
                client.Close();
            }
            catch (Exception e)
            {
                Logger.GetInstance().WriteLog(e.ToString());
            }
        }
Exemplo n.º 3
0
        public void StartReceiving(ITextChanger ipText)
        {
            TcpListener server = null;

            try
            {
                // Set the TcpListener on port 13000.
                Int32     port         = 13000;
                IPAddress localAddress = IPAddress.Parse(ipv4Address);

                ipText.ChangeText(localAddress.MapToIPv4().ToString());

                server = new TcpListener(localAddress, port);

                // Start listening for client requests.
                server.Start();

                // Buffer for reading data
                Byte[] bytes = new Byte[256];
                String data  = null;

                // Enter the listening loop.
                while (true)
                {
                    Logger.GetInstance().NotifyAll("Waiting for a connection... ");

                    // Perform a blocking call to accept requests.
                    // You could also use server.AcceptSocket() here.
                    TcpClient client = server.AcceptTcpClient();
                    Logger.GetInstance().NotifyAll("Connected!");

                    data = null;

                    // Get a stream object for reading and writing
                    NetworkStream stream = client.GetStream();

                    int i;

                    // Loop to receive all the data sent by the client.
                    while ((i = stream.Read(bytes, 0, bytes.Length)) != 0)
                    {
                        // Translate data bytes to a ASCII string.
                        data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
                        Logger.GetInstance().NotifyAll("Received: " + data);
                        List <Message> newMessage = UtilityFunctions.MessageParser(data);
                        MessageCollection.GetInstance().AddListOfMessages(newMessage);
                        // Process the data sent by the client.
                        //data = data.ToUpper();

                        byte[] msg = System.Text.Encoding.ASCII.GetBytes(newMessage[0].Call());

                        // Send back a response.
                        stream.Write(msg, 0, msg.Length);
                        Logger.GetInstance().NotifyAll("Sent: " + data);
                    }

                    // Shutdown and end connection
                    //client.Close();
                }
            }
            catch (SocketException e)
            {
                Logger.GetInstance().NotifyAll("SocketException: " + e);
            }
            finally
            {
                // Stop listening for new clients.
                server.Stop();
                Logger.GetInstance().NotifyAll("Server has stopped listening");
            }
        }