cpassword.java

windows系统下用java开发的网络入侵检测程序

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
/**
 * Modify JIDX Client user's self password.<p>
 * 2005.9.20
 * @version 0.1.2
 * @author Daxin Tian
 *
 */
class Cpassword extends Frame implements ActionListener
{
	/**
	 * Label "Modify password".
	 */
	JLabel la1;
	/**
	 * Label "Old Password".
	 */
	JLabel la2;
	/**
	 * Label "New Password".
	 */
	JLabel la3;
	/**
	 * Label "Confirm Password".
	 */
	JLabel la4;
	/**
	 * Input old password.
	 */
	JPasswordField tf_old;
	/**
	 * Input new password.
	 */
	JPasswordField tf_new;
	/**
	 * Input confirm password.
	 */
	JPasswordField tf_confirm;
	/**
	 * Button OK. When clicked perform modify action.
	 */
	JButton b_ok;
	/**
	 * Button Cancel. When clicked close this window.
	 */
	JButton b_cancel;
	
	/**
	 * Point to CmainFrame's c_dis.
	 */
	DataInputStream c_dis=null;
	/**
	 * Point to CmainFrame's c_dos.
	 */
	DataOutputStream c_dos=null;
	/**
	 * This JIDX Client's self username.
	 */
	String c_name=null;
	/**
	 * Prompt error message when new password is not equal confirm password.
	 */
	MsgDialog msg=new MsgDialog();
	/**
	 * 
	 * @param dis CmainFrame's c_dis.
	 * @param dos CmainFrame's c_dos.
	 * @param name This JIDX Client's self username.
	 */
	Cpassword(DataInputStream dis,DataOutputStream dos,String name)
	{
		super("JIDX Client Password");
		
		c_dis=dis;
		c_dos=dos;
		c_name=name;
		setBounds(250,100,200,200);
		JPanel p1,p2,p3,p4;
		la1=new JLabel("Modify password",JLabel.CENTER);
		la1.setBackground(Color.lightGray);
		la2=new JLabel("Old Password",JLabel.RIGHT);
		la3=new JLabel("New Password",JLabel.RIGHT);
		la4=new JLabel("Confirm Password",JLabel.RIGHT);
		tf_old=new JPasswordField(10);
		tf_old.setEchoChar('*');
		tf_new=new JPasswordField(10);
		tf_new.setEchoChar('*');
		tf_confirm=new JPasswordField(10);
		tf_confirm.setEchoChar('*');
		b_ok=new JButton("OK");
		b_cancel=new JButton("Cancel");
		
		setLayout(new GridLayout(5,1));
		add(la1);
		p1=new JPanel();
		p1.setLayout(new GridLayout(1,2));
		p1.add(la2);
		p1.add(tf_old);
		add(p1);
		p2=new JPanel();
		p2.setLayout(new GridLayout(1,2));
		p2.add(la3);
		p2.add(tf_new);
		add(p2);
		p3=new JPanel();
		p3.setLayout(new GridLayout(1,2));
		p3.add(la4);
		p3.add(tf_confirm);
		add(p3);
		p4=new JPanel();
		p4.setLayout(new GridLayout(1,2));
		p4.add(b_ok);
		p4.add(b_cancel);
		add(p4);
		
		pack();
		b_ok.addActionListener(this);
		b_cancel.addActionListener(this);
		setVisible(false);
		addWindowListener(new WindowAdapter()
				  {public void windowClosing(WindowEvent e)
				  	{setVisible(false);}
				  }
				);
		
	}
	/**
	 * Listen button OK,Cancel's action.
	 */
	public void actionPerformed(ActionEvent e)
	{
		if(e.getSource()==b_ok)
		{
			if(tf_old.getText().trim().equals(""))
			{
				msg.show("Old password can't be null");
			}
			else
			{
				if(tf_new.getText().trim().equals(""))
				{
					msg.show("new password can't be null");
				}
				else
				{
					if(tf_confirm.getText().trim().equals(""))
					{
						msg.show("Confirm password can't be null");
					}
					else
					{
						if(!tf_new.getText().trim().equals(tf_confirm.getText().trim()))
						{
							msg.show("new password and confirm password doesn't equal");
						}
						else
						{
							StringBuffer c_sb=new StringBuffer();
													
							c_sb.append("<msg><mod_password><name>"+c_name+"</name><oldpassword>"+tf_old.getText().trim()+"</oldpassword><newpassword>"+tf_new.getText().trim()+"</newpassword></mod_password></msg>");
							
							try
							{
								//System.out.println("send mod: "+c_sb.toString());
								c_dos.writeUTF(c_sb.toString());
								la1.setText("Modifing Password......");
							
							}
							catch(IOException ee)
							{
								
							}
						}
					}
				}
			}
		}
		if(e.getSource()==b_cancel)
		{
			setVisible(false);
		}
	}
	
}