import java.net.*;
import java.io.*;
import java.util.*;

public class onefile extends Thread {

  static String theData = "";
  static String ContentType;
  Socket theConnection;

  public static void main(String[] args) {

    int thePort;
    ServerSocket ss;
    Socket theConnection;
    FileInputStream theFile;

    // cache the file
    try {
      theFile = new FileInputStream(args[0]);
      DataInputStream dis = new DataInputStream(theFile);
      if (args[0].endsWith(".html") || args[0].endsWith(".htm")) {
        ContentType = "text/html";
      }
      else {
        ContentType = "text/plain";
      }
      
      try {
        String thisLine = "";
        while ((thisLine = dis.readLine()) != null) { 
          theData += thisLine + "\n";
        }
      }
      catch (Exception e) {
        System.err.println("Error: " + e);
      }

    }
    catch (Exception e) {
      System.err.println(e);
      System.err.println("Usage: java onefile filename port");
      System.exit(1);
    }
        
    // set the port to listen on
    try {
      thePort = Integer.parseInt(args[1]);
      if (thePort < 0 || thePort > 65535) thePort = 80;
    }  
    catch (Exception e) {
      thePort = 80;
    }  
                
    try {
      ss = new ServerSocket(thePort);
      System.out.println("Accepting connections on port " 
        + ss.getLocalPort());
      System.out.println("Data to be sent:");
      System.out.println(theData);
      while (true) {
        onefile fs = new onefile(ss.accept());
        fs.start();
      }
    }
    catch (IOException e) {
    
    }
  
  }
  
  public onefile(Socket s) {
    theConnection = s;
  }

  public void run() {
  
    try {
      PrintStream os = new PrintStream(theConnection.getOutputStream());
      DataInputStream is = new DataInputStream(theConnection.getInputStream());
      String request = is.readLine();
      // If this is HTTP/1.0 or later send a MIME header
      if (request.indexOf("HTTP/") != -1) {
        while (true) {  // read the rest of the MIME header
          String thisLine = is.readLine();
          if (thisLine.trim().equals("")) break; 
        }
        
        os.print("HTTP/1.0 200 OK\r\n");
        Date now = new Date();
        os.print("Date: " + now + "\r\n");
        os.print("Server: OneFile 1.0\r\n");
        os.print("Content-length: " + theData.length() + "\r\n");
        os.print("Content-type: " + ContentType + "\r\n\r\n");
      } // end if
      os.println(theData);
      theConnection.close();
    }  // end try
    catch (IOException e) {
    
    }

  }

}