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/*******************************************************************************
* Copyright (c) 2004, 2007 Mylyn project committers and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.mylyn.internal.tasks.ui;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.jface.window.Window;
import org.eclipse.mylyn.commons.core.CoreUtil;
import org.eclipse.mylyn.commons.net.AuthenticationCredentials;
import org.eclipse.mylyn.commons.net.AuthenticationType;
import org.eclipse.mylyn.commons.net.Policy;
import org.eclipse.mylyn.commons.net.UnsupportedRequestException;
import org.eclipse.mylyn.internal.tasks.core.TaskRepositoryLocation;
import org.eclipse.mylyn.internal.tasks.ui.dialogs.TaskRepositoryCredentialsDialog;
import org.eclipse.mylyn.tasks.core.TaskRepository;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
/**
* @author Steffen Pingel
*/
public class TaskRepositoryLocationUi extends TaskRepositoryLocation {
private static Object lock = new Object();
public TaskRepositoryLocationUi(TaskRepository taskRepository) {
super(taskRepository);
}
@Override
public void requestCredentials(AuthenticationType authType, String message, IProgressMonitor monitor)
throws UnsupportedRequestException {
if (CoreUtil.TEST_MODE) {
throw new UnsupportedRequestException();
}
AuthenticationCredentials oldCredentials = taskRepository.getCredentials(authType);
// synchronize on a static lock to ensure that only one password dialog is displayed at a time
synchronized (lock) {
// check if the credentials changed while the thread was waiting for the lock
if (!areEqual(oldCredentials, taskRepository.getCredentials(authType))) {
return;
}
if (Policy.isBackgroundMonitor(monitor)) {
throw new UnsupportedRequestException();
}
PasswordRunner runner = new PasswordRunner(authType, message);
PlatformUI.getWorkbench().getDisplay().syncExec(runner);
if (runner.isCanceled()) {
throw new OperationCanceledException();
}
if (!runner.isChanged()) {
throw new UnsupportedRequestException();
}
}
}
private boolean areEqual(AuthenticationCredentials oldCredentials, AuthenticationCredentials credentials) {
if (oldCredentials == null) {
return (credentials == null);
} else {
return oldCredentials.equals(credentials);
}
}
private class PasswordRunner implements Runnable {
private final AuthenticationType authType;
private boolean changed;
private final String message;
private boolean canceled;
public PasswordRunner(AuthenticationType credentialType, String message) {
this.authType = credentialType;
this.message = message;
}
public boolean isChanged() {
return changed;
}
public boolean isCanceled() {
return canceled;
}
public void run() {
Shell shell = Display.getCurrent().getActiveShell();
if (shell != null && !shell.isDisposed()) {
TaskRepositoryCredentialsDialog dialog = TaskRepositoryCredentialsDialog.createDialog(shell);
initializeDialog(dialog);
int resultCode = dialog.open();
if (resultCode == Window.OK) {
apply(dialog);
changed = true;
} else if (resultCode == TaskRepositoryCredentialsDialog.TASK_REPOSITORY_CHANGED) {
changed = true;
} else {
canceled = true;
}
}
}
private void initializeDialog(TaskRepositoryCredentialsDialog dialog) {
dialog.setTaskRepository(taskRepository);
AuthenticationCredentials credentials = taskRepository.getCredentials(authType);
if (credentials != null) {
dialog.setUsername(credentials.getUserName());
dialog.setPassword(credentials.getPassword());
}
// caller provided message takes precedence
if (message != null) {
dialog.setMessage(message);
} else {
dialog.setMessage(getDefaultMessage());
}
}
private String getDefaultMessage() {
if (AuthenticationType.REPOSITORY.equals(authType)) {
return "Enter repository password";
} else if (AuthenticationType.HTTP.equals(authType)) {
return "Enter HTTP password";
} else if (AuthenticationType.PROXY.equals(authType)) {
return "Enter proxy password";
}
return null;
}
private void apply(TaskRepositoryCredentialsDialog dialog) {
AuthenticationCredentials credentials = new AuthenticationCredentials(dialog.getUserName(),
dialog.getPassword());
taskRepository.setCredentials(authType, credentials, dialog.getSavePassword());
TasksUiPlugin.getRepositoryManager().notifyRepositorySettingsChanged(taskRepository);
TasksUiPlugin.getRepositoryManager().saveRepositories(TasksUiPlugin.getDefault().getRepositoriesFilePath());
}
}
}
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