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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.motorolamobility.studio.android.certmanager.command;
import java.security.KeyStore;
import java.security.KeyStore.Entry;
import java.security.UnrecoverableKeyException;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.jface.window.Window;
import org.eclipse.ui.PlatformUI;
import com.motorola.studio.android.common.utilities.EclipseUtils;
import com.motorola.studio.android.common.utilities.ui.PasswordInputDialog;
import com.motorolamobility.studio.android.certmanager.core.KeyStoreUtils;
import com.motorolamobility.studio.android.certmanager.core.PasswordProvider;
import com.motorolamobility.studio.android.certmanager.event.KeyStoreModelEvent.EventType;
import com.motorolamobility.studio.android.certmanager.event.KeyStoreModelEventManager;
import com.motorolamobility.studio.android.certmanager.exception.InvalidPasswordException;
import com.motorolamobility.studio.android.certmanager.i18n.CertificateManagerNLS;
import com.motorolamobility.studio.android.certmanager.ui.model.EntryNode;
import com.motorolamobility.studio.android.certmanager.ui.model.ITreeNode;
import com.motorolamobility.studio.android.certmanager.ui.model.KeyStoreNode;
import com.motorolamobility.studio.android.certmanager.views.KeystoreManagerView;
/**
* This class changes the password of a key/certificate from the tree of the {@link KeystoreManagerView}
* */
public class ChangePasswordKeyHandler extends AbstractHandler2 implements IHandler
{
@Override
public Object execute(ExecutionEvent event) throws ExecutionException
{
//retrieves the first element of the selection
//note that this command should be enabled only when selection.count == 1.
ITreeNode entry = getSelection().get(0);
if (entry instanceof EntryNode)
{
//must enter old and new password
KeyStoreNode keyStoreNode = (KeyStoreNode) entry.getParent();
PasswordProvider passwordProvider = new PasswordProvider(keyStoreNode.getFile());
EntryNode entryNode = (EntryNode) entry;
PasswordInputDialog passwordInputDialog = null;
boolean cancelledOrChangedPassword = false;
do
{
passwordInputDialog =
new PasswordInputDialog(PlatformUI.getWorkbench()
.getActiveWorkbenchWindow().getShell(),
CertificateManagerNLS.PasswordInput_EnterOldKeyPasssword_Message,
true, null, EntryNode.KEY_PASSWORD_MIN_SIZE);
if (passwordInputDialog.open() == Window.OK)
{
String newPassword = passwordInputDialog.getNewPassword();
String oldPassword = passwordInputDialog.getOldPassword();
if ((newPassword != null) && (oldPassword != null))
{
try
{
Entry keyEntry = entryNode.getKeyEntry(oldPassword);
if (keyEntry != null)
{
boolean tryAgain = false;
boolean useSavedPass = true;
String keystorePassword = null;
KeyStore keyStore = null;
do
{
if (tryAgain)
{
useSavedPass = false;
}
keystorePassword =
passwordProvider
.getKeyStorePassword(true, useSavedPass);
tryAgain = false;
if (keystorePassword != null)
{
try
{
if (keyStoreNode.isPasswordValid(keystorePassword))
{
keyStore =
keyStoreNode.getKeyStore(keystorePassword);
}
else
{
tryAgain = true;
}
}
catch (InvalidPasswordException e)
{
tryAgain = true;
}
}
}
while (tryAgain);
if (keyStore != null)
{
KeyStoreUtils.changeEntryPassword(keyStore,
keystorePassword.toCharArray(), keyStoreNode.getFile(),
entryNode.getAlias(), keyEntry,
newPassword.toCharArray());
//delete old save password - if there is one
if (passwordProvider.isPasswordSaved(entryNode.getAlias()))
{
passwordProvider.deleteSavedPassword(entryNode.getAlias());
}
if (passwordInputDialog.needToStorePassword())
{
//store new password at provider
passwordProvider.savePassword(entryNode.getAlias(),
newPassword);
}
//success
cancelledOrChangedPassword = true;
EclipseUtils.showInformationDialog(
CertificateManagerNLS.PasswordChanged_Info_Title,
CertificateManagerNLS.PasswordChanged_KeyInfo_Message);
//update tooltip and image
KeyStoreModelEventManager.getInstance().fireEvent(entryNode,
EventType.UPDATE);
}
}
}
catch (UnrecoverableKeyException e)
{
//error - notify on screen
cancelledOrChangedPassword = false;
EclipseUtils
.showErrorDialog(
CertificateManagerNLS.ChangePasswordKeyHandler_Error_WrongOldKeyPassword,
CertificateManagerNLS.ChangePasswordKeyHandler_Wrong_Key_Password);
}
catch (Exception e)
{
//error - notify on screen
cancelledOrChangedPassword = false;
EclipseUtils
.showErrorDialog(
CertificateManagerNLS.ChangePasswordKeyHandler_Error_WrongOldKeyPassword,
e.getMessage());
}
}
}
else
{
//user cancelled screen
cancelledOrChangedPassword = true;
}
}
while (!cancelledOrChangedPassword);
}
return null;
}
}
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