/*
 * @(#)Whois.java	1.0 01/04/2002
 *           
 * Copyright (c) 2002 Wapped Net, Ltd. All Rights Reserved.
 *
 * Wapped Net Ltd grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Wapped Net Ltd.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL WAPPED NET OR ITS
 * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
 * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
 * OR INABILITY TO USE SOFTWARE, EVEN IF WAPPED NET HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * This software is not designed or intended for use in on-line control of
 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
 * the design, construction, operation or maintenance of any nuclear
 * facility. Licensee represents and warrants that it will not use or
 * redistribute the Software for such purposes.
 */



import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;

import java.net.*;
import java.io.*;
import javax.swing.border.*;




public class Whois extends JApplet implements ActionListener{


// Host name of the whois server, and port.
public final static String DEFAULT_HOSTNAME = "whois.internic.net";
public final static int DEFAULT_PORT = 43;

  boolean isStandalone = false;
  String  hostname;
  int     port;

  // Top level container
  JPanel whoisPanel = new JPanel();

  // Contains two scroll panes. One button and a text field etc.

  // Holds the domain name to search for.
  JTextField searchString = new JTextField();
  JLabel whoisLabel = new JLabel();
  JButton findButton = new JButton();

  // Output search results scroll pane
  JScrollPane stdScroll = new JScrollPane();
  JTextArea errorOut = new JTextArea();

  // Output system errors and warnings scroll pane.
  JTextArea stdOut = new JTextArea();
  JScrollPane errorScroll = new JScrollPane();


  TitledBorder titledBorder1;


 // Construct the applet
  public Whois() {
  }

  //Initialize the applet
  public void init() {

  String value;

    // SERVER HOSTNAME
    value = this.getParameter("hostname");

    if( value == null ){
       hostname = DEFAULT_HOSTNAME;
    }
    else{
       hostname = value;
    }

    // PORT NUMBER
    value = this.getParameter("port");

    if( value == null ){
       port = DEFAULT_PORT;
    }
    else{
       port = Integer.parseInt(value);
    }

    try  {
      jbInit();
    }
    catch(Exception e)  {
      e.printStackTrace();
    }
  }

  //Component initialization
  private void jbInit() throws Exception {
    titledBorder1 = new TitledBorder("");
    this.setSize(new Dimension(290, 157));
    searchString.setMinimumSize(new Dimension(30, 21));
    searchString.setPreferredSize(new Dimension(200, 21));
    searchString.setToolTipText("Enter the domain name to search for.");
    searchString.addActionListener(this);
    searchString.setActionCommand("find");
    searchString.addActionListener(this);


    whoisLabel.setFont(new java.awt.Font("SansSerif", 1, 12));
    whoisLabel.setForeground(Color.white);
    whoisLabel.setText("whois");


    findButton.setText("find");
    findButton.addActionListener(this);
    findButton.setBackground(Color.red);
    findButton.setFont(new java.awt.Font("SansSerif", 1, 12));
    findButton.setForeground(Color.white);
    findButton.setBorder(BorderFactory.createRaisedBevelBorder());
    findButton.setToolTipText("Select to find the domain name.");
    findButton.setActionCommand("find");

    stdScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    stdScroll.setPreferredSize(new Dimension(20, 80));
    stdOut.setToolTipText("Search results.");
    stdOut.setBackground(Color.pink);
    stdOut.setForeground(Color.white);
    stdOut.setFont(new java.awt.Font("SansSerif", 1, 9));
    whoisPanel.setBorder(BorderFactory.createEtchedBorder());
    errorScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
    errorScroll.setPreferredSize(new Dimension(20, 40));
    errorOut.setToolTipText("System errors and warnings.");
    errorOut.setBackground(Color.black);
    errorOut.setForeground(Color.green);
    errorOut.setFont(new java.awt.Font("Monospaced", 0, 9));
    this.getContentPane().add(whoisPanel, BorderLayout.NORTH);
    whoisPanel.add(whoisLabel, null);
    whoisPanel.add(searchString, null);
    whoisPanel.add(findButton, null);
    this.getContentPane().add(errorScroll, BorderLayout.SOUTH);
    errorScroll.getViewport().add(errorOut, null);
    this.getContentPane().add(stdScroll, BorderLayout.CENTER);
    stdScroll.getViewport().add(stdOut, null);
  }

  //Get Applet information
  public String getAppletInfo() {
     return "Title: Whois\nAuthor:Wapped Internet Ltd \nWhois search engine.";
  }

  //Get parameter info
  public String[][] getParameterInfo() {
    String pinfo[][] = {
            {"hostname", "whois.internic.net", "Name of the whois server."},
            {"port", "43", "Whois server port number."},
        };
        return pinfo;
  }
  // static initializer for setting look & feel
  static {
    try {
      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
      //UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
    }
    catch (Exception e) {}
  }

  // What action event has been triggered?
  public void actionPerformed(ActionEvent e){

      // Retrieve the action label associated with the object
      String cmd = e.getActionCommand();

      // FIND BUTTON ACTIVATED or CARRIAGE
      // RETURN IN SEARCH STRING WINDOW
      if( cmd.equals("find" )){

          lookUpName(searchString.getText() );
         }

  }  // End action.

  // Connect to the whois server and request information
  // for the domain name.
  public void lookUpName(String name){

       Socket theSocket;
       BufferedReader theWhoisBuffer;
       PrintStream ps;
       String s;

       try{
            theSocket = new Socket(hostname, port);

            ps = new PrintStream(theSocket.getOutputStream());
            theWhoisBuffer = new BufferedReader(new InputStreamReader( theSocket.getInputStream()));

            ps.print(name + "\r\n");

            while(( s = theWhoisBuffer.readLine()) != null){

                  stdOut.append(s + "\n");
            } // End while.
         }
         catch( IOException e){

           // Send the error out to the GUI text pane.
           errorOut.append(e.toString() + "\n" );
         }

  } // End lookUpName


}