Mercurial > hg > release > thermostat-1.0
view client/swing/src/main/java/com/redhat/thermostat/client/swing/internal/views/ClientConfigurationSwing.java @ 1372:2caadc2d158b
Inject StorageCredentials to delay password loading in memory
reviewed-by: jerboaa
review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-November/008920.html
author | Jon VanAlten <jon.vanalten@redhat.com> |
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date | Thu, 21 Nov 2013 13:00:46 -0700 |
parents | b0b7a213659b |
children | a0592d702416 |
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/* * Copyright 2012, 2013 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat 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 2, or (at your * option) any later version. * * Thermostat 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 Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.client.swing.internal.views; import java.awt.Frame; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.lang.reflect.InvocationTargetException; import java.util.Arrays; import java.util.concurrent.Callable; import java.util.concurrent.CopyOnWriteArrayList; import javax.swing.JDialog; import javax.swing.JOptionPane; import javax.swing.JTextField; import javax.swing.SwingUtilities; import javax.swing.WindowConstants; import com.redhat.thermostat.client.core.views.ClientConfigurationView; import com.redhat.thermostat.client.locale.LocaleResources; import com.redhat.thermostat.client.swing.EdtHelper; import com.redhat.thermostat.common.ActionEvent; import com.redhat.thermostat.common.ActionListener; import com.redhat.thermostat.shared.locale.Translate; public class ClientConfigurationSwing implements ClientConfigurationView { private static final Translate<LocaleResources> translator = LocaleResources.createLocalizer(); private final WindowClosingListener windowClosingListener; private final ClientConfigurationPanel configurationPanel; private char[] previousPassword = new char[]{}; private boolean userOverrodePassword = false; private final CopyOnWriteArrayList<ActionListener<Action>> listeners = new CopyOnWriteArrayList<>(); private JDialog dialog; public ClientConfigurationSwing() { assertInEDT(); windowClosingListener = new WindowClosingListener(); configurationPanel = new ClientConfigurationPanel(); configurationPanel.password.addKeyListener(new KeyListener() { @Override public void keyPressed(KeyEvent arg0) { // Ignore } @Override public void keyReleased(KeyEvent arg0) { // Ignore } @Override public void keyTyped(KeyEvent arg0) { userOverrodePassword = true; } }); java.awt.event.ActionListener acceptOnEnterListener = new java.awt.event.ActionListener() { @Override public void actionPerformed(java.awt.event.ActionEvent arg0) { fireAction(new ActionEvent<>(ClientConfigurationSwing.this, Action.CLOSE_ACCEPT)); } }; // handle 'enter' in text fields JTextField[] fields = new JTextField[] { configurationPanel.storageUrl, configurationPanel.userName, configurationPanel.password}; for (JTextField field: fields) { field.addActionListener(acceptOnEnterListener); } final JOptionPane optionPane = new JOptionPane(configurationPanel); optionPane.setOptionType(JOptionPane.OK_CANCEL_OPTION); optionPane.addPropertyChangeListener(new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent evt) { String propertyName = evt.getPropertyName(); if ((evt.getSource() == optionPane) && (propertyName.equals(JOptionPane.VALUE_PROPERTY))) { if (dialog.isVisible()) { if (evt.getNewValue().equals(JOptionPane.OK_OPTION)) { fireAction(new ActionEvent<>(ClientConfigurationSwing.this, Action.CLOSE_ACCEPT)); } else if (evt.getNewValue().equals(JOptionPane.CANCEL_OPTION)) { fireAction(new ActionEvent<>(ClientConfigurationSwing.this, Action.CLOSE_CANCEL)); } } } } }); dialog = new JDialog((Frame) null, translator.localize(LocaleResources.CLIENT_PREFS_WINDOW_TITLE).getContents()); dialog.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE); dialog.setContentPane(optionPane); dialog.addWindowListener(windowClosingListener); } JDialog getDialog() { return dialog; } @Override public void showDialog() { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { dialog.pack(); dialog.setVisible(true); } }); } @Override public void hideDialog() { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { dialog.setVisible(false); dialog.dispose(); dialog = null; } }); } @Override public String getConnectionUrl() { try { return new EdtHelper().callAndWait(new Callable<String>() { @Override public String call() throws Exception { return configurationPanel.storageUrl.getText(); } }); } catch (InvocationTargetException | InterruptedException e) { InternalError error = new InternalError(); error.initCause(e); throw error; } } @Override public void setConnectionUrl(final String url) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { configurationPanel.storageUrl.setText(url); } }); } @Override public void addListener(ActionListener<Action> listener) { listeners.add(listener); } @Override public void removeListener(ActionListener<Action> listener) { listeners.remove(listener); } private void fireAction(ActionEvent<Action> actionEvent) { for (ActionListener<Action> listener: listeners) { listener.actionPerformed(actionEvent); } } private void assertInEDT() { if (!SwingUtilities.isEventDispatchThread()) { throw new IllegalStateException("must be invoked in the EDT"); } } class WindowClosingListener extends WindowAdapter { @Override public void windowClosing(WindowEvent e) { if (previousPassword != null) { Arrays.fill(previousPassword, '\0'); } fireAction(new ActionEvent<>(ClientConfigurationSwing.this, Action.CLOSE_CANCEL)); } } @Override public void setPassword(final char[] password) { this.previousPassword = password; } @Override public void setUserName(final String username) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { configurationPanel.userName.setText(username); } }); }; @Override public char[] getPassword() { if (!userOverrodePassword) { return previousPassword; } try { return new EdtHelper().callAndWait(new Callable<char[]>() { @Override public char[] call() throws Exception { return configurationPanel.password.getPassword(); } }); } catch (InvocationTargetException | InterruptedException e) { InternalError error = new InternalError(); error.initCause(e); throw error; } } @Override public String getUserName() { try { return new EdtHelper().callAndWait(new Callable<String>() { @Override public String call() throws Exception { return configurationPanel.userName.getText(); } }); } catch (InvocationTargetException | InterruptedException e) { InternalError error = new InternalError(); error.initCause(e); throw error; } } @Override public boolean getSaveEntitlements() { try { return new EdtHelper().callAndWait(new Callable<Boolean>() { @Override public Boolean call() throws Exception { return configurationPanel.saveEntitlements.isSelected(); } }); } catch (InvocationTargetException | InterruptedException e) { InternalError error = new InternalError(); error.initCause(e); throw error; } } @Override public void setSaveEntitlements(final boolean save) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { configurationPanel.saveEntitlements.setSelected(save); } }); } }