aswi2021tri-musketyri-gitlab/ClientConnectionTest/ClientTest/ClientTest/Program.cs @ 755c25f3

//// Asynchronous Client Socket Example
//// http://msdn.microsoft.com/en-us/library/bew39x2a.aspx

//using System;
//using System.Net;
//using System.Net.Sockets;
//using System.Threading;
//using System.Text;

//// State object for receiving data from remote device.
//public class StateObject
//{
//    // Client socket.
//    public Socket workSocket = null;
//    // Size of receive buffer.
//    public const int BufferSize = 256;
//    // Receive buffer.
//    public byte[] buffer = new byte[BufferSize];
//    // Received data string.
//    public StringBuilder sb = new StringBuilder();
//}

//public class AsynchronousClient
//{
//    // The port number for the remote device.
//    private const int port = 11000;

//    // ManualResetEvent instances signal completion.
//    private static ManualResetEvent connectDone =
//        new ManualResetEvent(false);
//    private static ManualResetEvent sendDone =
//        new ManualResetEvent(false);
//    private static ManualResetEvent receiveDone =
//        new ManualResetEvent(false);

//    // The response from the remote device.
//    private static String response = String.Empty;

//    private static void StartClient()
//    {
//        // Connect to a remote device.
//        try
//        {
//            // Establish the remote endpoint for the socket.
//            // The name of the 
//            // remote device is "host.contoso.com".
//            IPHostEntry ipHostInfo = Dns.GetHostEntry("localhost");
//            IPAddress ipAddress = ipHostInfo.AddressList[0];
//            IPEndPoint remoteEP = new IPEndPoint(IPAddress.Loopback, port);

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

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

//            // Send test data to the remote device.
//            Send(client, "This is a test!");
//            sendDone.WaitOne();

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

//            // Write the response to the console.
//            Console.WriteLine("Response received : {0}", response);

//            // Release the socket.
//            client.Shutdown(SocketShutdown.Both);
//            client.Close();

//        }
//        catch (Exception e)
//        {
//            Console.WriteLine(e.ToString());
//        }
//    }

//    private static void ConnectCallback(IAsyncResult ar)
//    {
//        try
//        {
//            // Retrieve the socket from the state object.
//            Socket client = (Socket)ar.AsyncState;

//            // Complete the connection.
//            client.EndConnect(ar);

//            Console.WriteLine("Socket connected to {0}",
//                client.RemoteEndPoint.ToString());

//            // Signal that the connection has been made.
//            connectDone.Set();
//        }
//        catch (Exception e)
//        {
//            Console.WriteLine(e.ToString());
//        }
//    }

//    private static void Receive(Socket client)
//    {
//        try
//        {
//            // Create the state object.
//            StateObject state = new StateObject();
//            state.workSocket = client;

//            // Begin receiving the data from the remote device.
//            client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
//                new AsyncCallback(ReceiveCallback), state);
//        }
//        catch (Exception e)
//        {
//            Console.WriteLine(e.ToString());
//        }
//    }

//    private static void ReceiveCallback(IAsyncResult ar)
//    {
//        try
//        {
//            // Retrieve the state object and the client socket 
//            // from the asynchronous state object.
//            StateObject state = (StateObject)ar.AsyncState;
//            Socket client = state.workSocket;

//            // Read data from the remote device.
//            int bytesRead = client.EndReceive(ar);

//            if (bytesRead > 0)
//            {
//                // There might be more data, so store the data received so far.
//                state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead));

//                // Get the rest of the data.
//                client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
//                    new AsyncCallback(ReceiveCallback), state);
//            }
//            else
//            {
//                // All the data has arrived; put it in response.
//                if (state.sb.Length > 1)
//                {
//                    response = state.sb.ToString();
//                }
//                // Signal that all bytes have been received.
//                receiveDone.Set();
//            }
//        }
//        catch (Exception e)
//        {
//            Console.WriteLine(e.ToString());
//        }
//    }

//    private static void Send(Socket client, String data)
//    {
//        // Convert the string data to byte data using ASCII encoding.
//        byte[] byteData = Encoding.ASCII.GetBytes(data);

//        // Begin sending the data to the remote device.
//        client.BeginSend(byteData, 0, byteData.Length, 0,
//            new AsyncCallback(SendCallback), client);
//    }

//    private static void SendCallback(IAsyncResult ar)
//    {
//        try
//        {
//            // Retrieve the socket from the state object.
//            Socket client = (Socket)ar.AsyncState;

//            // Complete sending the data to the remote device.
//            int bytesSent = client.EndSend(ar);
//            Console.WriteLine("Sent {0} bytes to server.", bytesSent);

//            // Signal that all bytes have been sent.
//            sendDone.Set();
//        }
//        catch (Exception e)
//        {
//            Console.WriteLine(e.ToString());
//        }
//    }

//    public static void Main(String[] args)
//    {
//        StartClient();
//        Console.ReadLine();
//    }
//}




using System;
using System.Net.Sockets;
using System.Text;

class Program
{
    static int PORT_NO = 11000;
    const string SERVER_IP = "127.0.0.1";//"192.168.1.5";
    static void Main(string[] args)
    {
        //---data to send to the server---
        string textToSend = "ahoj!";

        Console.WriteLine("enter A if you are admin: ");
        string ent = "B";
        ent = Console.ReadLine();

		if (ent.Equals("A"))
		{
            PORT_NO = 10000;
		}
        //---create a TCPClient object at the IP and port no.---
        TcpClient client = new TcpClient(SERVER_IP, PORT_NO);
        NetworkStream nwStream = client.GetStream();


		while (true)
		{
            Console.WriteLine("enter text: ");
            textToSend = Console.ReadLine();


            byte[] bytesToSend = ASCIIEncoding.ASCII.GetBytes(textToSend);

            //---send the text---
            Console.WriteLine("Sending : " + textToSend);
            nwStream.Write(bytesToSend, 0, bytesToSend.Length);
			

            //---read back the text---
            byte[] bytesToRead = new byte[client.ReceiveBufferSize];
            int bytesRead = nwStream.Read(bytesToRead, 0, client.ReceiveBufferSize);
            Console.WriteLine("Received : " + Encoding.ASCII.GetString(bytesToRead, 0, bytesRead));

            if (textToSend.Equals("bye!"))
            {
                break;
            }
        }
        
        client.Close();
    }
}