A simple HTTP server implemented in C #

Server

Http.cs
----------------------------
Using System;
Using System.Collections;
Using System.IO;
Using System.Net;
Using System.Net.Sockets;
Using System.Threading;

Class Httpprocessor {

Private Socket S;
Private BufferedStream BS;
Private StreamReader SR;
Private StreamWriter SW;
Private String method;
Private String URL;
Private String Protocol;
Private Hashtable Hashtable;

Public Httpprocessor (Socket s) {
THIS.S = s;
hashTable = new HashTable ();
}

public void process () {
NetworkStream ns = new NetworkStream (s, fileaccess.readwrite);
BS = new BufferedStream (NS);
sr = new StreamReader (BS);
SW = new StreamWriter (BS);
Parserequest ();
Readheaders ();
Writeurl ();
S.shutdown (Socketshutdown.sdboth);
Ns. Close ();
}

public void Parserequest () {
String request = Sr. ReadLine ();
String[] tokens = Request. Split (New char[]{'});
method = Tokens[0];
url = tokens[1];
protocol = tokens[2];
}

  public void Readheaders () {
    String line;
    while (line = Sr. ReadLine ())!= null && line!= ""} {
      string[] tokens = line. Split (New char[]{': '});
      String name = Tokens[0];
      String value = "";
      for (int i = 1; i < tokens. Length; i++) {
        value + = Tokens[i];
        if (I < tokens. LENGTH-1) tokens[i] = = ":";
     }
      Hashtable[name] = value;
   }
 }

  public void Writeurl () {
    try {
       FileStream fs = new FileStream (URL. Substring (1), FileMode.Open, FileAccess.Read);
      writesuccess ();
      BufferedStream BS2 = new BufferedStream (FS);
      byte[] bytes = new byte[4096];
      int read;
      while (read = BS2. Read (bytes, 0, bytes. Length))!= 0) {
        BS. Write (bytes, 0, read);
     }
      BS2. Close ();
   } catch (FileNotFoundException) {
      writefailure ();
      SW. WriteLine ("File not Found:" + URL);
   }
    SW. Flush ();
 }

public void writesuccess () {
Sw. WriteLine ("http/1.0 OK");
Sw. WriteLine ("Connection:close");
Sw. WriteLine ();
}

public void Writefailure () {
Sw. WriteLine ("http/1.0 404 File Not Found");
Sw. WriteLine ("Connection:close");
Sw. WriteLine ();
}
}

public class Httpserver {

// ============================================================
Data

protected int port;

// ============================================================
Constructor

Public Httpserver (): This (80) {
}

public httpserver (int port) {
This.port = port;
}

// ============================================================
Listener

public void Listen () {
Socket listener = new Socket (0, Sockettype.sockstream, protocoltype.prottcp);
IPAddress ipaddress = new IPAddress ("127.0.0.1");
IPEndPoint endpoint = new IPEndPoint (ipaddress, Port);
Listener. Bind (endpoint);
Listener. Blocking = true;
Listener. Listen (-1);
while (true) {
Socket s = listener. Accept ();
Httpprocessor processor = new Httpprocessor (s);
Thread thread = new Thread (new ThreadStart (processor.process));
Thread. Start ();
}
}

// ============================================================
Main

public static int Main (string[] args) {
Httpserver Httpserver;
if (args. GetLength (0) > 0) {
Httpserver = new Httpserver (args[0). ToUInt16 ());
} else {
Httpserver = new Httpserver ();
}
Thread thread = new Thread (new ThreadStart (Httpserver.listen));
Thread. Start ();
return 0;
}
}