import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import java.security.*;
import javax.net.ssl.*;

//import java.util.*;

public class Client extends JFrame implements Runnable {

   private Thread thread = new Thread(this);
   private Socket socket;
   private static String host = "127.0.0.1";
   private static int port = 2000;
   private static boolean visible = true;
   private JTextField textField = new JTextField();
   private JTextArea textArea = new JTextArea();

   public static void main(String args[]) {
      if(args.length != 0) {
         host = args[0];
         if(args.length != 1) {
            port = Integer.parseInt(args[1]);
         }
      }

      new Client();
   }

   public Client() {
      textField.addActionListener(new L2());
      getContentPane().add("North", textField);
      getContentPane().add("Center", new JScrollPane(textArea));
      setLocation(420, 0);
      setSize(400, 200);
      addWindowListener(new L1());
      show();

      try {
         //Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());

         SSLSocketFactory sslSF = (SSLSocketFactory)SSLSocketFactory.getDefault();
         socket =(SSLSocket)sslSF.createSocket(host, port);
         System.out.println("CLIENT CONNECTED");

         String[] cipherSuites = ((SSLSocket)socket).getEnabledCipherSuites();
         System.out.println("ENABLED CIPHER SUITES:");
         for(int i= 0; i < cipherSuites.length; i++)
            System.out.println("   " + cipherSuites[i]);

         String[] encs = new String[cipherSuites.length + 1];
         for(int len = 0; len < cipherSuites.length; len++)
            encs[len] = cipherSuites[len];
         encs[cipherSuites.length] = "SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA";
         ((SSLSocket)socket).setEnabledCipherSuites(encs);

         setTitle("CONNECTED TO: " + host + " - ON PORT: " + port);
      } catch (IOException e) {
         System.out.println("IOException generated" + e);
         System.out.println("COULD NOT CONNECT");
         killMe();
      }
      thread.start();
   }

   public void run() {
      BufferedReader in = null;
      try{
         in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
      } catch(IOException e) {
         System.out.println("IOException generated" + e);
         killMe();
         return;
      }

      String inputLine = "";
      while(true) {
         try {
            inputLine = in.readLine();
	 } catch(NullPointerException e) {
	    System.out.println("NullPointer generated: " + e);
	 } catch(IOException e) {
            System.out.println("IOException generated 2: " + e);
	 }
	 textArea.append(inputLine + "\n"); 
       textArea.setCaretPosition(textArea.getText().length()); 
       Toolkit.getDefaultToolkit().beep();             
      }
   }

   private void sendMessage(String message) {
      try {
         PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
         out.println(message);
         //out.close();
         if(message.equals("exit")) killMe();
      } catch (IOException e) {
         System.out.println("IOException generated" + e);
      }
   }

   private String getHost(Socket socket) {
      try {
         return(socket.getInetAddress().getLocalHost().getHostName());
      } catch(java.net.UnknownHostException e) {
         System.out.println("UnknownHostException generated: " + e);
         return("unknown");
      }
   }

   public void killMe() {
      dispose();
      System.exit(1);
   }

   class L1 extends WindowAdapter {
      public void windowClosing(WindowEvent we) {
         dispose();
      }

      public void windowClosed(WindowEvent we) {
         System.exit(1);
      }
   }

   class L2 implements ActionListener {
      public void actionPerformed(ActionEvent ae) {
         String message = textField.getText();
         textField.setText("");
         sendMessage(message);  
      }
   }
}