net.sf.keystore_explorer.gui.dialogs.extensions.DNetscapeBaseUrl.java Source code

Introduction

Here is the source code for net.sf.keystore_explorer.gui.dialogs.extensions.DNetscapeBaseUrl.java

Source

/*
 * 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.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.JTextField;
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.DERIA5String;

import net.sf.keystore_explorer.gui.PlatformUtil;
import net.sf.keystore_explorer.gui.error.DError;

/**
 * Dialog used to add or edit a Netscape Base URL extension.
 *
 */
public class DNetscapeBaseUrl 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 jpNetscapeBaseUrl;
    private JLabel jlNetscapeBaseUrl;
    private JTextField jtfNetscapeBaseUrl;
    private JPanel jpButtons;
    private JButton jbOK;
    private JButton jbCancel;

    private byte[] value;

    /**
     * Creates a new DNetscapeBaseUrl dialog.
     *
     * @param parent
     *            The parent dialog
     */
    public DNetscapeBaseUrl(JDialog parent) {
        super(parent);
        setTitle(res.getString("DNetscapeBaseUrl.Title"));
        initComponents();
    }

    /**
     * Creates a new DNetscapeBaseUrl dialog.
     *
     * @param parent
     *            The parent dialog
     * @param value
     *            Netscape Base URL DER-encoded
     * @throws IOException
     *             If value could not be decoded
     */
    public DNetscapeBaseUrl(JDialog parent, byte[] value) throws IOException {
        super(parent);
        setTitle(res.getString("DNetscapeBaseUrl.Title"));
        initComponents();
        prepopulateWithValue(value);
    }

    private void initComponents() {
        jlNetscapeBaseUrl = new JLabel(res.getString("DNetscapeBaseUrl.jlNetscapeBaseUrl.text"));

        jtfNetscapeBaseUrl = new JTextField(40);

        jpNetscapeBaseUrl = new JPanel(new BorderLayout(5, 5));

        jpNetscapeBaseUrl.setBorder(new CompoundBorder(new EmptyBorder(5, 5, 5, 5),
                new CompoundBorder(new EtchedBorder(), new EmptyBorder(5, 5, 5, 5))));

        jpNetscapeBaseUrl.add(jlNetscapeBaseUrl, BorderLayout.NORTH);
        jpNetscapeBaseUrl.add(jtfNetscapeBaseUrl, BorderLayout.CENTER);

        jbOK = new JButton(res.getString("DNetscapeBaseUrl.jbOK.text"));
        jbOK.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent evt) {
                okPressed();
            }
        });

        jbCancel = new JButton(res.getString("DNetscapeBaseUrl.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(jpNetscapeBaseUrl, 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 {
        DERIA5String netscapeBaseUrl = DERIA5String.getInstance(value);

        jtfNetscapeBaseUrl.setText(netscapeBaseUrl.getString());
        jtfNetscapeBaseUrl.setCaretPosition(0);
    }

    private void okPressed() {
        String netscapeBaseUrlStr = jtfNetscapeBaseUrl.getText().trim();

        if (netscapeBaseUrlStr.length() == 0) {
            JOptionPane.showMessageDialog(this, res.getString("DNetscapeBaseUrl.ValueReq.message"), getTitle(),
                    JOptionPane.WARNING_MESSAGE);
            return;
        }

        DERIA5String netscapeBaseUrl = new DERIA5String(netscapeBaseUrlStr);

        try {
            value = netscapeBaseUrl.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();
    }
}