org.eclipse.equinox.internal.security.ui.storage.PasswordRecoveryDialog.java Source code

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Here is the source code for org.eclipse.equinox.internal.security.ui.storage.PasswordRecoveryDialog.java

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/*******************************************************************************
 * Copyright (c) 2008 IBM Corporation 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
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.equinox.internal.security.ui.storage;

import org.eclipse.equinox.internal.security.storage.friends.InternalExchangeUtils;
import org.eclipse.equinox.internal.security.ui.nls.SecUIMessages;
import org.eclipse.equinox.security.storage.SecurePreferencesFactory;
import org.eclipse.jface.dialogs.*;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.PlatformUI;

public class PasswordRecoveryDialog extends TitleAreaDialog {

    private static final String HELP_ID = "org.eclipse.equinox.security.ui.password_recovery_dialog"; //$NON-NLS-1$

    protected Text[] answers;
    protected String moduleID;
    protected String[] answersText = null;
    protected Button okButton;

    final protected String[] questionsText;

    public PasswordRecoveryDialog(String[] questionsText, Shell parentShell, String moduleID) {
        super(parentShell);
        this.questionsText = questionsText;
        this.moduleID = moduleID;
        answers = new Text[questionsText.length];
    }

    protected void configureShell(Shell shell) {
        super.configureShell(shell);
        shell.setText(SecUIMessages.pswdRecoveryTitle);
        PlatformUI.getWorkbench().getHelpSystem().setHelp(shell, HELP_ID);
    }

    protected void createButtonsForButtonBar(Composite parent) {
        okButton = createButton(parent, IDialogConstants.OK_ID, SecUIMessages.pswRecoveryButtonOK, true);
        okButton.setEnabled(false);
        createButton(parent, IDialogConstants.CANCEL_ID, SecUIMessages.pswRecoveryButtonCancel, false);
    }

    protected boolean isResizable() {
        return true;
    }

    protected Control createDialogArea(Composite parent) {
        Composite compositeTop = (Composite) super.createDialogArea(parent);
        Composite composite = new Composite(compositeTop, SWT.NONE);

        setMessage(SecUIMessages.pswRecoveryMsg, IMessageProvider.INFORMATION);

        for (int i = 0; i < questionsText.length; i++) {
            Group group = new Group(composite, SWT.NONE);
            group.setText(NLS.bind(SecUIMessages.passwordGroup, Integer.toString(i + 1)));
            group.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true));
            group.setLayout(new GridLayout());

            String question = NLS.bind(SecUIMessages.pswRecoveryQuestion, questionsText[i]);
            new Label(group, SWT.LEFT).setText(question);
            answers[i] = new Text(group, SWT.LEFT | SWT.BORDER);
            answers[i].setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true));
            answers[i].addModifyListener(new ModifyListener() {
                public void modifyText(ModifyEvent event) {
                    validateOK();
                }
            });
        }

        composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        GridLayoutFactory.swtDefaults().generateLayout(composite);

        return composite;
    }

    protected void validateOK() {
        boolean valid = true;
        for (int i = 0; i < questionsText.length; i++) {
            if (answers[i] == null)
                continue;
            String question = answers[i].getText();
            if (question == null || question.length() == 0) {
                valid = false;
                break;
            }
        }
        if (valid)
            setMessage(SecUIMessages.pswRecoveryMsg, IMessageProvider.INFORMATION);
        else
            setMessage(SecUIMessages.pswRecoveryWarning, IMessageProvider.WARNING);
        okButton.setEnabled(valid);
    }

    protected void okPressed() {
        answersText = new String[questionsText.length];
        for (int i = 0; i < questionsText.length; i++) {
            answersText[i] = answers[i].getText();
        }

        String password = InternalExchangeUtils.recoverPassword(answersText, SecurePreferencesFactory.getDefault(),
                moduleID);
        if (password == null) {
            MessageBox prompt = new MessageBox(getShell(), SWT.ICON_ERROR | SWT.YES | SWT.NO);
            prompt.setText(SecUIMessages.pswdRecoveryTitle);
            prompt.setMessage(SecUIMessages.pswNotRecoveredMsg);
            if (prompt.open() == SWT.YES)
                return;
        } else { // even in UI case we use digested and encoded password - makes no sense to show it
            MessageBox prompt = new MessageBox(getShell(), SWT.ICON_INFORMATION | SWT.OK);
            prompt.setText(SecUIMessages.pswdRecoveryTitle);
            prompt.setMessage(SecUIMessages.pswRecoveredMsg);
            prompt.open();
        }

        super.okPressed();
    }

    public String[] getResult() {
        return answersText;
    }

}