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How to read from a networkstream?

Posted on 2004-07-30
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Last Modified: 2010-04-15
Ola,

In the method GetHTTPrequest I want to write to the concole the text in the stream from the request that came in on the tcp listner.
How do I do that?

using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Collections;

namespace AtomHTTPresponse
{
      class AtomHTTPresponse
      {
            private byte[] cByteSteamData = null;
            static void Main(string[] args)
            {
                  AtomHTTPresponse lObjAtomHTTPresponse = new AtomHTTPresponse();
                  TcpListener lObjTcpListner = new TcpListener( 9999 );
                  lObjTcpListner.Start();
                  Console.WriteLine( "Listening started" );
                  TcpClient lObjTcpClient = lObjTcpListner.AcceptTcpClient();
                  Console.WriteLine( "Got a client" );
                  NetworkStream lObjNetworkStream = lObjTcpClient.GetStream();
                  lObjNetworkStream.BeginRead( lObjAtomHTTPresponse.cByteSteamData, 0, 1048576, new AsyncCallback( lObjAtomHTTPresponse.GetHTTPrequest ), null );
            }
            private void GetHTTPrequest( IAsyncResult ar )
            {
                  //Console.WriteLine( "Here I want the HTTP request written" );
            }
            private void RespondHTTP()
            {
                  /*
                  string lStrHTTPheader = "";
                  lStrHTTPheader += "HTTP/1.1 404\r\n";
                  lStrHTTPheader += "Server: c# DHTML Chat Server V0.01alpha\r\n";
                  lStrHTTPheader += "Content-Type: text/html\r\n";
                  lStrHTTPheader += "Accept-Ranges: bytes\r\n";
                  lStrHTTPheader += "Content-Length: 1000000000000000\r\n\r\n"; // Igone this HTTP header for now. We will get to that subject in another question
               
                  Byte[] lArrBtHTTPheader = System.Text.Encoding.ASCII.GetBytes( lStrHTTPheader );
                  
                  lObjNetworkStream.Write( lArrBtHTTPheader, 0, lArrBtHTTPheader.Length );
                  Console.WriteLine( "HTTP header send" );
                  string lStrHTTPcontent = "";
                  lStrHTTPheader += "<html><head><title>yoyo</title></head><body>ohh yeah</body></html>";
               
                  Byte[] lArrBtHTTPcontent = System.Text.Encoding.ASCII.GetBytes( lStrHTTPcontent );

                  lObjNetworkStream.Write( lArrBtHTTPcontent, 0, lArrBtHTTPcontent.Length );
                  Console.WriteLine( "HTTP content send" );
                  */
            }
      }
}
0
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Question by:DaFou
  • 8
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13 Comments
 
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Expert Comment

by:dukkorg
ID: 11679529
You could try:

Console.Write(System.Text.Encoding.ASCII.GetString(lObjAtomHTTPresponse.cByteSteamData));
0
 
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Author Comment

by:DaFou
ID: 11680781
Compile error
The type or namespace name 'lObjAtomHTTPresponse' could not be found (are you missing a using directive or an assembly reference?)

Console.Write(System.Text.Encoding.ASCII.GetString(      !! lObjAtomHTTPresponse !!     .cByteSteamData));
0
 
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Expert Comment

by:dukkorg
ID: 11681592
Sorry My bad. Just do:

Console.Write(System.Text.Encoding.ASCII.GetString(cByteSteamData));
0
 
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Author Comment

by:DaFou
ID: 11681735
This code:
using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Collections;

namespace AtomHTTPresponse
{
      class AtomHTTPresponse
      {
            private byte[] cByteStreamData = new byte[1048576];
            static void Main(string[] args)
            {
                  AtomHTTPresponse lObjAtomHTTPresponse = new AtomHTTPresponse();
                  TcpListener lObjTcpListner = new TcpListener( 9999 );
                  lObjTcpListner.Start();
                  Console.WriteLine( "Listening started" );
                  TcpClient lObjTcpClient = lObjTcpListner.AcceptTcpClient();
                  Console.WriteLine( "Got a client" );
                  NetworkStream lObjNetworkStream = lObjTcpClient.GetStream();
                  lObjNetworkStream.BeginRead( lObjAtomHTTPresponse.cByteStreamData, 0, 1048576, new AsyncCallback( lObjAtomHTTPresponse.GetHTTPrequest ), null );
            }
            private void GetHTTPrequest( IAsyncResult ar )
            {
                  //Console.WriteLine( "Here I want the HTTP request written" );
                  Console.WriteLine(System.Text.Encoding.ASCII.GetString(cByteStreamData));
            }
      }
}

Renders this result:

C:\_data\Projects\AtomHTTPresponse\bin\Debug>AtomHTTPresponse.exe
Listening started
Got a client

C:\_data\Projects\AtomHTTPresponse\bin\Debug>

THe HTTP request is not being displayed when i connect to my localhost on port 9999 with my browser
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Accepted Solution

by:
dukkorg earned 500 total points
ID: 11682064
Ok I made a version that does what your looking for (I Think):

using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Collections;
using System.IO;

namespace AtomHTTPresponse
{
      internal sealed class AtomHTTPresponse
      {
            private static Server server = null;

            private static void Main(string[] args)
            {
                  server = new Server( 9999 );
                  server.Start();

                  // You'll probably want to stop sometime...
            }
      }

      internal class Server
      {
            private TcpListener tcpListner = null;
            private bool keepRunning = false;

            public Server(int port)
            {
                  tcpListner = new TcpListener(port);
            }

            public void Start()
            {
                  keepRunning = true;

                  tcpListner.Start();
                  Console.WriteLine("Listening started");
                  
                  while (keepRunning)
                  {
                        ThreadPool.QueueUserWorkItem(new WaitCallback(processRequest), tcpListner.AcceptTcpClient());
                  }
            }

            public void Stop()
            {
                  keepRunning = false;
                  tcpListner.Stop();
                  Console.WriteLine("Listening stopped");
            }

            private void processRequest(object state)
            {
                  Console.WriteLine("Got a Client");
                  TcpClient tcp = state as TcpClient;

                  if (tcp != null)
                  {
                        NetworkStream stream = tcp.GetStream();
                        StreamReader reader = new StreamReader(stream);
                        StreamWriter writer = new StreamWriter(stream);
      
                        while (reader.Peek() >= 0)
                        {
                              char[] c = new char[256];
                              reader.Read(c, 0, c.Length);
                              Console.Write(c);
                        }

                        // TODO: Send something back...
                        writer.Write("HTTP Header... Content...");
                        writer.Flush();

                        Console.WriteLine("Response Sent");

                        // TODO: Check for keep-alive if you want to follow the RFC etc...

                        stream.Close();
                        tcp.Close();

                        Console.WriteLine("Client Session Ended.");
                  }
                  else
                  {
                        Console.WriteLine("Bad Client, Ignoring request.");
                  }
            }
      }
}
0
 
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Author Comment

by:DaFou
ID: 11683095
Can you please help me out with the folow up to this question on how to minimize this code?
It is quite large now using threadpool and other stuff I really dont want to use YET.

Please partisipate in my next question about this:
http://www.experts-exchange.com/Programming/Programming_Languages/C_Sharp/Q_21077813.html

Regards
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Author Comment

by:DaFou
ID: 11683100
like do all your magic in GetHTTPrequest would be of great help. plain and simple straigt forward.
It will help my learning process of the C# and the networking

Regards
0
 
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Expert Comment

by:dukkorg
ID: 11683122
Well you deleted your new post right before I posted. So I guess I'll still be nice and post it here:

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

namespace AtomHTTPresponse
{
      internal sealed class SimpleHttp
      {
            private static void Main(string[] args)
            {
                  TcpListener tcpListner = new TcpListener(9999);
                  tcpListner.Start();
                  Console.WriteLine("Listening started.");

                  TcpClient tcp = tcpListner.AcceptTcpClient();

                  Console.WriteLine("Starting new session.");
                  NetworkStream stream = tcp.GetStream();
                  StreamReader reader = new StreamReader(stream);
                  StreamWriter writer = new StreamWriter(stream);

                  Console.WriteLine("Reading request.");
                  char[] chars = new char[256];
                  reader.Read(chars, 0, chars.Length);
                  Console.Write(chars);

                  Console.WriteLine("Building Response.");
                  string content = "<html><head><title>Response</title></head><body>Here's a response.</body></html>";
                  string header = "HTTP/1.1 200 OK\r\n"
                        + "Cache-Control: private\r\n"
                        + "Content-Type: text/html\r\n"
                        + "Server: SimpleHttp/1.0\r\n"
                        + "Content-Length: " + Encoding.UTF8.GetByteCount(content) + "\r\n"
                        + "Date: " + DateTime.Now.ToLongTimeString() + "\r\n\r\n";
                  
                  Console.WriteLine("Sending response.");
                  writer.Write(header);
                  writer.Write(content);
                  writer.Flush();

                  Console.WriteLine("Cleaning up session.");
                  reader.Close();
                  writer.Close();
                  stream.Close();
                  tcp.Close();

                  Console.WriteLine("Press any key to quit.");
                  Console.Read();
            }
      }
}
0
 
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Author Comment

by:DaFou
ID: 11683124
I apologise.

I already figurted it out:

using System;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Collections;
using System.IO;

namespace AtomHTTPresponse
{
      class AtomHTTPresponse
      {
            private byte[] cByteStreamData = new byte[1048576];
            static void Main(string[] args)
            {
                  AtomHTTPresponse lObjAtomHTTPresponse = new AtomHTTPresponse();
                  TcpListener lObjTcpListner = new TcpListener( 9999 );
                  lObjTcpListner.Start();
                  Console.WriteLine( "Listening started" );
                  TcpClient lObjTcpClient = lObjTcpListner.AcceptTcpClient();
                  Console.WriteLine( "Got a client" );
                  NetworkStream lObjNetworkStream = lObjTcpClient.GetStream();
                  
                  StreamReader reader = new StreamReader( lObjNetworkStream );

                  while (reader.Peek() >= 0)
                  {
                        char[] c = new char[256];
                        reader.Read(c, 0, c.Length);
                        Console.Write(c);
                  }

            }
      }
}

This is as small as I can get it now.. from this basis Ill work further
0
 
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Author Comment

by:DaFou
ID: 11683128
Sorry dukkorg,

that we crossed each other.

Ill be sure to keep posting in this thread the questions I open in folow up to my missions. TO enable you to earn maximum points as my missions progresses
0
 
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Expert Comment

by:dukkorg
ID: 11683137
If you want a decent book on learning all of this you can pick this one up used from amazon for cheap. 9 used & new from $5.92

http://www.amazon.com/exec/obidos/ASIN/1861007353/qid%3D1091257973/sr%3D11-1/ref%3Dsr%5F11%5F1/104-4299452-5460711
0
 
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Author Comment

by:DaFou
ID: 11683138
I want you to have the point you deserver. I insist you take them as you earned them.
To activity on my part I screwed up a bit.

Come get your points please:
http://www.experts-exchange.com/Programming/Programming_Languages/C_Sharp/Q_21077819.html
0
 
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Author Comment

by:DaFou
ID: 11683229
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