Fixed namespaces; Working on server-side UI.
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191
TestProtocol/CustomServer.cs
Normal file
191
TestProtocol/CustomServer.cs
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@@ -0,0 +1,191 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace TestProtocol
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{
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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using NSspi;
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public class CustomServer
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{
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private Thread receiveThread;
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private Socket serverSocket;
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private Socket readSocket;
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private bool running;
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public CustomServer()
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{
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this.running = false;
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}
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public delegate void ReceivedAction( Message message );
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public event ReceivedAction Received;
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public void StartServer( int port )
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{
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if( this.running )
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{
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throw new InvalidOperationException( "Already running" );
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}
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this.serverSocket = new Socket( SocketType.Stream, ProtocolType.Tcp );
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this.running = true;
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this.receiveThread = new Thread( ReceiveThreadEntry );
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this.receiveThread.Name = "SSPI Server Receive Thread";
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this.receiveThread.Start();
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}
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public void Stop()
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{
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if( this.running == false )
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{
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throw new InvalidOperationException( "Already stopped" );
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}
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this.serverSocket.Close();
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if( this.readSocket != null )
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{
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this.readSocket.Close();
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}
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this.receiveThread.Join();
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}
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public void Send( Message message )
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{
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if( this.running == false )
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{
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throw new InvalidOperationException( "Not connected" );
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}
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byte[] outBuffer = new byte[message.Data.Length + 8];
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ByteWriter.WriteInt32_BE( (int)message.Operation, outBuffer, 0 );
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ByteWriter.WriteInt32_BE( message.Data.Length, outBuffer, 4 );
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Array.Copy( message.Data, 0, outBuffer, 8, message.Data.Length );
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this.serverSocket.Send( outBuffer, 0, outBuffer.Length, SocketFlags.None );
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}
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private void ReceiveThreadEntry()
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{
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try
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{
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while( this.running )
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{
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try
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{
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this.readSocket = this.serverSocket.Accept();
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}
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catch( SocketException e )
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{
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if( e.SocketErrorCode == SocketError.ConnectionAborted ||
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e.SocketErrorCode == SocketError.Interrupted ||
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e.SocketErrorCode == SocketError.OperationAborted ||
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e.SocketErrorCode == SocketError.Shutdown )
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{
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// Shutting down.
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break;
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}
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else
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{
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throw;
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}
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}
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ReadLoop();
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}
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}
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catch( Exception e )
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{
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MessageBox.Show( "The SspiConnection receive thread crashed:\r\n\r\n" + e.ToString() );
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this.running = false;
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}
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}
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private void ReadLoop()
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{
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byte[] readBuffer = new byte[65536];
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ProtocolOp operation;
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int length;
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while( this.running )
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{
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try
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{
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// |--4 bytes--|--4 bytes--|---N--|
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// Every command is a TLV - | Operation | Length | Data |
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// Read the operation.
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this.serverSocket.Receive( readBuffer, 4, SocketFlags.None );
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// Check if we popped out of a receive call after we were shut down.
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if( this.running == false ) { break; }
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operation = (ProtocolOp)ByteWriter.ReadInt32_BE( readBuffer, 0 );
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// Read the length
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this.serverSocket.Receive( readBuffer, 4, SocketFlags.None );
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length = ByteWriter.ReadInt32_BE( readBuffer, 0 );
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// Read the data
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this.serverSocket.Receive( readBuffer, length, SocketFlags.None );
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}
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catch( SocketException e )
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{
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if( e.SocketErrorCode == SocketError.ConnectionAborted ||
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e.SocketErrorCode == SocketError.Interrupted ||
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e.SocketErrorCode == SocketError.OperationAborted ||
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e.SocketErrorCode == SocketError.Shutdown )
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{
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// Shutting down.
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break;
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}
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else
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{
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throw;
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}
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}
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if( this.Received != null )
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{
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byte[] dataCopy = new byte[length];
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Array.Copy( readBuffer, 0, dataCopy, 0, length );
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Message message = new Message( operation, dataCopy );
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try
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{
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this.Received( message );
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}
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catch( Exception e )
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{ }
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}
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}
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}
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}
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}
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