AwtAuthenticator.java

/*
 * Copyright (C) 2009, Google Inc.
 * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> and others
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0 which is available at
 * https://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package org.eclipse.jgit.awtui;

import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.net.PasswordAuthentication;

import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import org.eclipse.jgit.util.CachedAuthenticator;

/**
 * Basic network prompt for username/password when using AWT.
 */
public class AwtAuthenticator extends CachedAuthenticator {
    /**
     * Install this authenticator implementation into the JVM.
     */
    public static void install() {
        setDefault(new AwtAuthenticator());
    }

    /** {@inheritDoc} */
    @Override
    protected PasswordAuthentication promptPasswordAuthentication() {
        final GridBagConstraints gbc = new GridBagConstraints(0, 0, 1, 1, 1, 1,
                GridBagConstraints.NORTHWEST, GridBagConstraints.NONE,
                new Insets(0, 0, 0, 0), 0, 0);
        final Container panel = new JPanel();
        panel.setLayout(new GridBagLayout());

        final StringBuilder instruction = new StringBuilder();
        instruction.append(UIText.get().enterUsernameAndPasswordFor);
        instruction.append(" "); //$NON-NLS-1$
        if (getRequestorType() == RequestorType.PROXY) {
            instruction.append(getRequestorType());
            instruction.append(" "); //$NON-NLS-1$
            instruction.append(getRequestingHost());
            if (getRequestingPort() > 0) {
                instruction.append(":"); //$NON-NLS-1$
                instruction.append(getRequestingPort());
            }
        } else {
            instruction.append(getRequestingURL());
        }

        gbc.weightx = 1.0;
        gbc.gridwidth = GridBagConstraints.REMAINDER;
        gbc.gridx = 0;
        panel.add(new JLabel(instruction.toString()), gbc);
        gbc.gridy++;

        gbc.gridwidth = GridBagConstraints.RELATIVE;

        // Username
        //
        final JTextField username;
        gbc.fill = GridBagConstraints.NONE;
        gbc.gridx = 0;
        gbc.weightx = 1;
        panel.add(new JLabel(UIText.get().username), gbc);

        gbc.gridx = 1;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.weighty = 1;
        username = new JTextField(20);
        panel.add(username, gbc);
        gbc.gridy++;

        // Password
        //
        final JPasswordField password;
        gbc.fill = GridBagConstraints.NONE;
        gbc.gridx = 0;
        gbc.weightx = 1;
        panel.add(new JLabel(UIText.get().password), gbc);

        gbc.gridx = 1;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.weighty = 1;
        password = new JPasswordField(20);
        panel.add(password, gbc);
        gbc.gridy++;

        if (JOptionPane.showConfirmDialog(null, panel,
                UIText.get().authenticationRequired, JOptionPane.OK_CANCEL_OPTION,
                JOptionPane.QUESTION_MESSAGE) == JOptionPane.OK_OPTION) {
            return new PasswordAuthentication(username.getText(), password
                    .getPassword());
        }

        return null; // cancel
    }
}