import javax.swing.*;
import java.net.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.util.regex.*;

public class DLinkConnection
{ 
  public static void main ( String args[] )
  {
  try{

    final int BUFSZ = 1000;
    byte buf[] = new byte[BUFSZ];

    if ( args.length != 2 ) 
      error( "Usage: login:pass@host:port connect|disconnect" );

    String connect = "0";

    if ( !args[1].equals("connect") &&
         !args[1].equals("disconnect") )
      error( "connect|disconnect" );
    else if ( args[1].equals("connect") )
      connect = "1";   
 
    String conf[] = args[0].split("@");
    if ( conf.length != 2 )
      error( "auth@conn" );

    String auth[] = conf[0].split(":");
    if ( auth.length != 2 )
      error( "login:path" );

    String conn[] = conf[1].split(":");
    if ( conn.length != 2 )
      error( "host:ip" );

    int port = Integer.parseInt(conn[1]);
    String host = conn[0];

    String len = new Integer( 139 + auth[0].length() + auth[1].length() ).toString();
     
    String authPost[] = {

       "POST /cgi-bin/webcm HTTP/1.1",
       "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, application/x-shockwave-flash, */*",
       "Referer: http://" + host,
       "Accept-Language: ru",
       "Content-Type: application/x-www-form-urlencoded",
       "Accept-Encoding: gzip, deflate",
       "User-Agent: Own",
       "Host: "+ host,
       "Content-Length: " + len,
       "Connection: Keep-Alive",
       "Cache-Control: no-cache",
       "",
       "getpage=..%2Fhtml%2Fframe.htm&errorpage=..%2Fhtml%2Findex.html&login%3Acommand%2Fusername=" + auth[0] + "&login%3Acommand%2Fpassword=" + auth[1] + "&var%3Aerrormsg=Error"
                           
                        };

    String adminPost[] = {

       "POST /cgi-bin/webcm HTTP/1.1",
       "Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, application/x-shockwave-flash, */*",
       "Referer: http://" + host + "/cgi-bin/webcm",
       "Accept-Language: ru",
       "Content-Type: application/x-www-form-urlencoded",
       "Accept-Encoding: gzip, deflate",
       "User-Agent: Own",
       "Host: " + host,
       "Content-Length: 82",
       "Connection: Keep-Alive",
       "Cache-Control: no-cache",
       "",
       "getpage=..%2Fhtml%2Fstatus%2Fconnstatus.htm&connection0%3Asettings%2Fmanual_conn=" + connect
                           
                        };

    int n;
    String delim = "\r\n";

    final JProgressBar progressBar = new JProgressBar( 0, 100 );
    progressBar.setIndeterminate(true);

    JDialog frame = new JDialog( new Frame(), args[1].equals("disconnect") ?
                                "Disconnecting!" : "Connecting!" );
    JPanel panel = new JPanel();
    panel.add(progressBar);
    frame.getContentPane().add(panel);
    frame.pack();   
    //Center the window
    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    Dimension frameSize = frame.getSize();

    frame.setLocation( screenSize.width/2 - frameSize.width/2,
                       screenSize.height/2 - frameSize.height/2 );

    frame.requestFocus();
    frame.setVisible(true);
   
    Socket client = new Socket( host, port );
    OutputStream out = client.getOutputStream();         
    InputStream in = client.getInputStream();         

    for ( int i=0; i < authPost.length; ++i )
    {
      out.write( authPost[i].getBytes(), 0, authPost[i].length() );
      out.write( delim.getBytes(), 0, delim.length() );
      out.flush();
    }       
   
    StringBuffer strBuf = new StringBuffer();
    while ( ( n = in.read(buf) ) > 0 )
      strBuf.append( new String(buf, 0, n).toCharArray(), 0, n );

    client.close();

    if ( -1 != strBuf.toString().indexOf( "Your Login Name / Password is Invalid" ) )   
      error( "Authentication error!" );

    client = new Socket( host, port );
    out = client.getOutputStream();         
    in = client.getInputStream();               

    for ( int i=0; i < adminPost.length; ++i )
    {
      out.write( adminPost[i].getBytes(), 0, adminPost[i].length() );
      out.write( delim.getBytes(), 0, delim.length() );
      out.flush();
    }   
       
    strBuf = new StringBuffer();
    while ( ( n = in.read(buf) ) > 0 )
      strBuf.append( new String(buf, 0, n).toCharArray(), 0, n );

    client.close();

    if ( args[1].equals("disconnect") )
      ok( "Successfully disconnected!" );
    else
    {
      ok( "Successfully connected!" );
      /*
      System.out.println( strBuf.toString()  );
      Pattern p = Pattern.compile( "\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}" );
      Matcher m = p.matcher( strBuf.toString() );
      if ( m.matches() )
        ok( m.group() );   
      */
    }

    System.exit(0);   
  }
  catch ( Exception e )
  {
    error( e.toString() );
  }
  }


  public static void error ( String str ) 
  {
    JOptionPane.showMessageDialog( new Frame(),
                                   str,
                                   "Try again",
                                   JOptionPane.ERROR_MESSAGE);
    System.exit(1);
  }

  public static void ok ( String str ) 
  {
    JOptionPane.showMessageDialog( new Frame(),
                                   str,
                                   "Success!",
                                   JOptionPane.INFORMATION_MESSAGE);
  }



 
};