Java tutorial
/* * Copyright 2004 - 2013 Wayne Grant * 2013 - 2016 Kai Kramer * * This file is part of KeyStore Explorer. * * KeyStore Explorer is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * KeyStore Explorer is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with KeyStore Explorer. If not, see <http://www.gnu.org/licenses/>. */ package net.sf.keystore_explorer.gui.dialogs.extensions; import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.IOException; import java.security.PublicKey; import java.util.ResourceBundle; import javax.swing.AbstractAction; import javax.swing.JButton; import javax.swing.JComponent; import javax.swing.JDialog; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.KeyStroke; import javax.swing.border.CompoundBorder; import javax.swing.border.EmptyBorder; import javax.swing.border.EtchedBorder; import org.bouncycastle.asn1.ASN1Encoding; import org.bouncycastle.asn1.x509.SubjectKeyIdentifier; import net.sf.keystore_explorer.gui.PlatformUtil; import net.sf.keystore_explorer.gui.crypto.JKeyIdentifier; import net.sf.keystore_explorer.gui.error.DError; /** * Dialog used to add or edit a Subject Key Identifier extension. * */ public class DSubjectKeyIdentifier extends DExtension { private static ResourceBundle res = ResourceBundle .getBundle("net/sf/keystore_explorer/gui/dialogs/extensions/resources"); private static final String CANCEL_KEY = "CANCEL_KEY"; private JPanel jpSubjectKeyIdentifier; private JLabel jlKeyIdentifier; private JKeyIdentifier jkiKeyIdentifier; private JPanel jpButtons; private JButton jbOK; private JButton jbCancel; private byte[] value; private PublicKey subjectPublicKey; /** * Creates a new DSubjectKeyIdentifier dialog. * * @param parent * The parent dialog * @param subjectPublicKey * Subject public key */ public DSubjectKeyIdentifier(JDialog parent, PublicKey subjectPublicKey) { super(parent); setTitle(res.getString("DSubjectKeyIdentifier.Title")); this.subjectPublicKey = subjectPublicKey; initComponents(); } /** * Creates a new DSubjectKeyIdentifier dialog. * * @param parent * The parent dialog * @param value * Subject Key Identifier DER-encoded * @param subjectPublicKey * Subject public key * @throws IOException * If value could not be decoded */ public DSubjectKeyIdentifier(JDialog parent, byte[] value, PublicKey subjectPublicKey) throws IOException { super(parent); setTitle(res.getString("DSubjectKeyIdentifier.Title")); this.subjectPublicKey = subjectPublicKey; initComponents(); prepopulateWithValue(value); } private void initComponents() { jlKeyIdentifier = new JLabel(res.getString("DSubjectKeyIdentifier.jlKeyIdentifer.text")); jkiKeyIdentifier = new JKeyIdentifier(res.getString("DSubjectKeyIdentifier.KeyIdentifier.Title"), subjectPublicKey); jpSubjectKeyIdentifier = new JPanel(new BorderLayout(5, 5)); jpSubjectKeyIdentifier.setBorder(new CompoundBorder(new EmptyBorder(5, 5, 5, 5), new CompoundBorder(new EtchedBorder(), new EmptyBorder(5, 5, 5, 5)))); jpSubjectKeyIdentifier.add(jlKeyIdentifier, BorderLayout.WEST); jpSubjectKeyIdentifier.add(jkiKeyIdentifier, BorderLayout.CENTER); jbOK = new JButton(res.getString("DSubjectKeyIdentifier.jbOK.text")); jbOK.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent evt) { okPressed(); } }); jbCancel = new JButton(res.getString("DSubjectKeyIdentifier.jbCancel.text")); jbCancel.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent evt) { cancelPressed(); } }); jbCancel.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), CANCEL_KEY); jbCancel.getActionMap().put(CANCEL_KEY, new AbstractAction() { @Override public void actionPerformed(ActionEvent evt) { cancelPressed(); } }); jpButtons = PlatformUtil.createDialogButtonPanel(jbOK, jbCancel, false); getContentPane().setLayout(new BorderLayout()); getContentPane().add(jpSubjectKeyIdentifier, BorderLayout.CENTER); getContentPane().add(jpButtons, BorderLayout.SOUTH); addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent evt) { closeDialog(); } }); setResizable(false); getRootPane().setDefaultButton(jbOK); pack(); } private void prepopulateWithValue(byte[] value) throws IOException { SubjectKeyIdentifier subjectKeyIdentifier = SubjectKeyIdentifier.getInstance(value); jkiKeyIdentifier.setKeyIdentifier(subjectKeyIdentifier.getKeyIdentifier()); } private void okPressed() { byte[] keyIdentifier = jkiKeyIdentifier.getKeyIdentifier(); if (keyIdentifier == null) { JOptionPane.showMessageDialog(this, res.getString("DSubjectKeyIdentifier.ValueReq.message"), getTitle(), JOptionPane.WARNING_MESSAGE); return; } SubjectKeyIdentifier subjectKeyIdentifier = new SubjectKeyIdentifier(keyIdentifier); try { value = subjectKeyIdentifier.getEncoded(ASN1Encoding.DER); } catch (IOException ex) { DError dError = new DError(this, ex); dError.setLocationRelativeTo(this); dError.setVisible(true); return; } closeDialog(); } /** * Get extension value DER-encoded. * * @return Extension value */ @Override public byte[] getValue() { return value; } private void cancelPressed() { closeDialog(); } private void closeDialog() { setVisible(false); dispose(); } }