password

/*
password.java
Made by John Eriksson 1997

john_eriksson_sw@hotmail.com

This code is free to use and modify!!!


EXAMPLE HTML CODE:
------------------

<center>
<applet code="password.class"  width=500 height=32>
<param name=root value="http://www.myhomepage.com/secretfiles/">
<param name=wrong value="http://www.myhomepage.com/secretfiles/wrong_pwd.html">
<param name=color value="ffffff">
<param name=textfield value="40">
<param name=button value="Open">
<param name=font_size value="12">
<param name=font_face value="Courier">
<param name=title value="Enter password:">
</applet>
<center>

*/

import java.applet.*;
import java.awt.*;
import java.lang.*;
import java.net.*;
import java.io.*;
import java.util.*;

/*====================================================================================
THE MAIN CLASS FOR THIS APPLET
====================================================================================*/
public class password extends java.applet.Applet
{
private Button b_open;
private TextField t_password;
private Label l_title;

private String root;
private int col;
private String title;
private String buttontxt;
private int bgcolor;
private int fsize;
private String fface;
private String errorURL;

/************************************************************************/
/* Init the display */
/************************************************************************/
public void init()
{
int loop;

   String att = getParameter("root");
   root = (att == null) ? this.getDocumentBase().toString() : att;
   att = getParameter("textfield");
   col = (att == null) ? 20 : (Integer.valueOf(att).intValue());
   att = getParameter("font_size");
   fsize = (att == null) ? 11 : (Integer.valueOf(att).intValue());
   att = getParameter("font_face");
   fface = (att == null) ? "Arial" : att;
   att = getParameter("color");
   bgcolor = (att == null) ? Color.white.getRGB() : (Integer.parseInt(att, 16));
   att = getParameter("title");
   title = (att == null) ? "" : att;
   att = getParameter("button");
   buttontxt = (att == null) ? "OPEN" : att;
   att = getParameter("wrong");
   errorURL = (att == null) ? "" : att;

   setFont(new Font(fface, Font.PLAIN, fsize));
   setBackground(new Color(bgcolor));

   b_open = new Button(buttontxt);
   t_password = new TextField(col);
   l_title = new Label(title);

   t_password.setBackground(Color.white);
   t_password.setEchoCharacter('*');

   setLayout(new FlowLayout(FlowLayout.CENTER,3,3));

   if(title.length()>0)
      add(l_title);

   add(t_password);
   add(b_open);

   show();
}
/************************************************************************/
/* Surf to error URL */
/************************************************************************/
void surfto_error()
{
   if(errorURL.length()>0) {
      try {
         getAppletContext().showDocument(new URL(errorURL),"_self");
      }
      catch (MalformedURLException e) {}
   }
   else
      showStatus("Invalid password!");
}

/************************************************************************/
/* Surf to an URL */
/************************************************************************/
void surfto()
{
   if(t_password.getText().length()>0) {
      try{
         URL surftoURL = new URL(root+t_password.getText()+".html");
         InputStream in = surftoURL.openStream();
         int input = in.read();
         in.close();
         getAppletContext().showDocument(surftoURL,"_self");
      }
      catch (MalformedURLException e) { surfto_error(); }
      catch (SecurityException e) { surfto_error(); }
      catch (IOException e) { surfto_error(); }

      t_password.setText("");
   }
}

/************************************************************************/
/* Handle all events */
/************************************************************************/
public boolean handleEvent(Event evt)
{

   if(evt.id == Event.KEY_PRESS && evt.target == t_password && evt.key==10){
      surfto();
      return(true);
   }
   return super.handleEvent(evt);
}

/************************************************************************/
/* Handle all actions */
/************************************************************************/
public boolean action(Event evt, Object arg)
{
   if (evt.target == b_open) {
      surfto();
      return true;
   }
   return(super.action(evt,arg));
}
}

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