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1
18
19 package com.Ostermiller.util;
20
21 import javax.swing.*;
22 import java.awt.*;
23 import java.awt.event.*;
24 import com.Ostermiller.util.*;
25
26
32 public class RandPassApplet extends JApplet {
33
34 private JTextArea display = new JTextArea();
35 private JButton clearButton = new JButton("Clear");
36 private JButton generateButton = new JButton("Generate");
37 private char[] passwordAlphabet = RandPass.NONCONFUSING_ALPHABET;
38 private JTextField alphabetField = new JTextField(new String  (passwordAlphabet));
39 private char[] passwordFirstAlphabet = new char[0];
40 private JTextField alphabetFirstField = new JTextField(new String (passwordFirstAlphabet));
41 private char[] passwordLastAlphabet = new char[0];
42 private JTextField alphabetLastField = new JTextField(new String (passwordLastAlphabet));
43 private int passwordLength = 8;
44 private JTextField passwordLengthField = new JTextField("" + passwordLength);
45 private RandPass randPass = new RandPass(passwordAlphabet);
46 private GridLayout preferencesPanelLayout = new GridLayout(4,2);
47 private JPanel preferencesPanel = new JPanel(preferencesPanelLayout);
48
49
54 public void init() {
55 getContentPane().removeAll();
56 JMenuBar menuBar = new JMenuBar();
57 JMenu editMenu = new JMenu("Edit");
58 editMenu.setMnemonic(KeyEvent.VK_E);
59 editMenu.getAccessibleContext().setAccessibleDescription(
60 "Change how passwords are generated."
61 );
62 JMenuItem prefsMenuItem = new JMenuItem("Preferences...", KeyEvent.VK_P);
63 prefsMenuItem.getAccessibleContext().setAccessibleDescription(
64 "Set password length and content."
65 );
66 preferencesPanelLayout.setHgap(5);
67 Dimension d;
68 d = passwordLengthField.getPreferredSize();
69 d.setSize(70, d.getHeight());
70 passwordLengthField.setPreferredSize(d);
71 d = alphabetField.getPreferredSize();
72 d.setSize(70, d.getHeight());
73 alphabetField.setPreferredSize(d);
74 d = alphabetFirstField.getPreferredSize();
75 d.setSize(70, d.getHeight());
76 alphabetFirstField.setPreferredSize(d);
77 d = alphabetLastField.getPreferredSize();
78 d.setSize(70, d.getHeight());
79 alphabetLastField.setPreferredSize(d);
80 preferencesPanel.add(new JLabel("Length:"));
81 preferencesPanel.add(passwordLengthField);
82 preferencesPanel.add(new JLabel("Alphabet:"));
83 preferencesPanel.add(alphabetField);
84 preferencesPanel.add(new JLabel("First Character Alphabet:"));
85 preferencesPanel.add(alphabetFirstField);
86 preferencesPanel.add(new JLabel("Last Character Alphabet:"));
87 preferencesPanel.add(alphabetLastField);
88 prefsMenuItem.addActionListener(new ActionListener(){
89 public void actionPerformed(ActionEvent e){
90 passwordLengthField.setText("" + passwordLength);
91 alphabetField.setText(new String (passwordAlphabet));
92 alphabetFirstField.setText(new String (passwordFirstAlphabet));
93 alphabetLastField.setText(new String (passwordLastAlphabet));
94 int preferencesResult = JOptionPane.showConfirmDialog(
95 RandPassApplet.this,
96 preferencesPanel,
97 "Preferences",
98 JOptionPane.OK_CANCEL_OPTION,
99 JOptionPane.QUESTION_MESSAGE
100 );
101 if (preferencesResult == JOptionPane.OK_OPTION){
102 try {
103 int length = Integer.parseInt(passwordLengthField.getText());
104 if (length >= 3 && length <=100){
105 passwordLength = length;
106 }
107 } catch (NumberFormatException x){
108 }
109 String alphabetString = alphabetField.getText();
110 passwordAlphabet = new char[alphabetString.length()];
111 alphabetString.getChars(0, alphabetString.length(), passwordAlphabet, 0);
112 randPass.setAlphabet(passwordAlphabet);
113 String alphabetFirstString = alphabetFirstField.getText();
114 passwordFirstAlphabet = new char[alphabetFirstString.length()];
115 alphabetFirstString.getChars(0, alphabetFirstString.length(), passwordFirstAlphabet, 0);
116 randPass.setFirstAlphabet(passwordFirstAlphabet);
117 String alphabetLastString = alphabetLastField.getText();
118 passwordLastAlphabet = new char[alphabetLastString.length()];
119 alphabetLastString.getChars(0, alphabetLastString.length(), passwordLastAlphabet, 0);
120 randPass.setLastAlphabet(passwordLastAlphabet);
121 }
122 }
123 });
124 editMenu.add(prefsMenuItem);
125 menuBar.add(editMenu);
126 setJMenuBar(menuBar);
127
128 display.setEditable(false);
129 display.setFont(new Font("Monospaced", Font.PLAIN, 12));
130 getContentPane().setLayout(new BorderLayout());
131 getContentPane().add(new JScrollPane(display), BorderLayout.CENTER);
132 JPanel buttonPanel = new JPanel(new FlowLayout());
133 clearButton.addActionListener(new ActionListener(){
134 public void actionPerformed(ActionEvent e){
135 display.setText("");
136 }
137 });
138 buttonPanel.add(clearButton);
139 generateButton.addActionListener(new ActionListener(){
140 public void actionPerformed(ActionEvent e){
141 display.append(randPass.getPass(passwordLength) + '\n');
142 }
143 });
144 buttonPanel.add(generateButton);
145 getContentPane().add(buttonPanel, BorderLayout.SOUTH);
146 display.setText(randPass.getPass(passwordLength) + '\n');
147 }
148
149
157 public String getAppletInfo() {
158 return (
159 "Title: Random Password Generator\n" +
160 "Author: Stephen Ostermiller\n" +
161 "http://ostermiller.org/contact.pl?regarding=Random+Password+Generator+Applet\n" +
162 "Generates secure random passwords."
163 );
164 }
165 }
166 |
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