/*
 * Zed Attack Proxy (ZAP) and its related class files.
 *
 * ZAP is an HTTP/HTTPS proxy for assessing web application security.
 *
 * Copyright 2013 The ZAP Development Team
 *
 * 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 org.zaproxy.zap.extension.users;

import java.awt.CardLayout;
import java.awt.GridBagLayout;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.SortOrder;
import org.parosproxy.paros.Constant;
import org.parosproxy.paros.model.Session;
import org.parosproxy.paros.view.View;
import org.zaproxy.zap.model.Context;
import org.zaproxy.zap.users.User;
import org.zaproxy.zap.view.AbstractContextPropertiesPanel;
import org.zaproxy.zap.view.AbstractMultipleOptionsTablePanel;
import org.zaproxy.zap.view.LayoutHelper;

public class ContextUsersPanel extends AbstractContextPropertiesPanel {

    private UsersMultipleOptionsPanel usersOptionsPanel;
    private ContextUserAuthManager contextManager;
    private ExtensionUserManagement extension;
    private UsersTableModel usersTableModel;

    /** The Constant serialVersionUID. */
    private static final long serialVersionUID = -3920598166129639573L;

    private static final String PANEL_NAME = Constant.messages.getString("users.panel.title");

    public ContextUsersPanel(ExtensionUserManagement extension, int contextId) {
        super(contextId);
        this.contextManager = extension.getContextUserAuthManager(contextId);
        this.extension = extension;
        initialize();
    }

    public static String getPanelName(int contextId) {
        // Panel names have to be unique, so prefix with the context id
        return contextId + ": " + PANEL_NAME;
    }

    private void initialize() {
        this.setLayout(new CardLayout());
        this.setName(getPanelName(getContextId()));
        this.setLayout(new GridBagLayout());

        this.add(
                new JLabel(Constant.messages.getString("users.panel.description")),
                LayoutHelper.getGBC(0, 0, 1, 1.0d, 0.0d));

        usersTableModel = new UsersTableModel();
        usersOptionsPanel =
                new UsersMultipleOptionsPanel(this.extension, usersTableModel, getContextId());
        this.add(usersOptionsPanel, LayoutHelper.getGBC(0, 1, 1, 1.0d, 1.0d));
    }

    @Override
    public String getHelpIndex() {
        return "ui.dialogs.contexts";
    }

    public static class UsersMultipleOptionsPanel extends AbstractMultipleOptionsTablePanel<User> {

        private static final long serialVersionUID = -7216673905642941770L;
        private static final String REMOVE_DIALOG_TITLE =
                Constant.messages.getString("users.dialog.remove.title");
        private static final String REMOVE_DIALOG_TEXT =
                Constant.messages.getString("users.dialog.remove.text");

        private static final String REMOVE_DIALOG_CONFIRM_BUTTON_LABEL =
                Constant.messages.getString("users.dialog.remove.button.confirm");
        private static final String REMOVE_DIALOG_CANCEL_BUTTON_LABEL =
                Constant.messages.getString("users.dialog.remove.button.cancel");

        private static final String REMOVE_DIALOG_CHECKBOX_LABEL =
                Constant.messages.getString("users.dialog.remove.checkbox.label");

        private DialogAddUser addDialog = null;
        private DialogModifyUser modifyDialog = null;
        private ExtensionUserManagement extension;
        private Context uiSharedContext;

        public UsersMultipleOptionsPanel(
                ExtensionUserManagement extension, UsersTableModel model, int contextId) {
            super(model);
            this.extension = extension;

            getTable().getColumnExt(0).setPreferredWidth(40);
            getTable().getColumnExt(1).setPreferredWidth(30);
            getTable().getColumnExt(1).setMaxWidth(50);
            getTable().setSortOrder(2, SortOrder.ASCENDING);
        }

        @Override
        public User showAddDialogue() {
            boolean valid =
                    uiSharedContext
                            .getAuthenticationMethod()
                            .validateCreationOfAuthenticationCredentials();
            if (!valid) {
                return null;
            }

            if (addDialog == null) {
                addDialog =
                        new DialogAddUser(
                                View.getSingleton().getOptionsDialog(null), this.extension);
                addDialog.pack();
            }
            addDialog.setWorkingContext(this.uiSharedContext);
            addDialog.setVisible(true);

            User user = addDialog.getUser();
            addDialog.clear();

            return user;
        }

        @Override
        public User showModifyDialogue(User user) {
            if (modifyDialog == null) {
                modifyDialog =
                        new DialogModifyUser(
                                View.getSingleton().getOptionsDialog(null), this.extension);
                modifyDialog.pack();
            }
            modifyDialog.setWorkingContext(this.uiSharedContext);
            modifyDialog.setUser(user);
            modifyDialog.setVisible(true);

            user = modifyDialog.getUser();
            modifyDialog.clear();

            return user;
        }

        @Override
        public boolean showRemoveDialogue(User e) {
            JCheckBox removeWithoutConfirmationCheckBox =
                    new JCheckBox(REMOVE_DIALOG_CHECKBOX_LABEL);
            Object[] messages = {REMOVE_DIALOG_TEXT, " ", removeWithoutConfirmationCheckBox};
            int option =
                    JOptionPane.showOptionDialog(
                            View.getSingleton().getMainFrame(),
                            messages,
                            REMOVE_DIALOG_TITLE,
                            JOptionPane.OK_CANCEL_OPTION,
                            JOptionPane.QUESTION_MESSAGE,
                            null,
                            new String[] {
                                REMOVE_DIALOG_CONFIRM_BUTTON_LABEL,
                                REMOVE_DIALOG_CANCEL_BUTTON_LABEL
                            },
                            null);

            if (option == JOptionPane.OK_OPTION) {
                setRemoveWithoutConfirmation(removeWithoutConfirmationCheckBox.isSelected());
                return true;
            }

            return false;
        }

        protected void setWorkingContext(Context context) {
            this.uiSharedContext = context;
        }
    }

    @Override
    public void initContextData(Session session, Context uiCommonContext) {
        this.usersOptionsPanel.setWorkingContext(uiCommonContext);
        this.usersTableModel.setUsers(this.contextManager.getUsers());
    }

    @Override
    public void validateContextData(Session session) throws Exception {
        // Nothing to validate
    }

    @Override
    public void saveContextData(Session session) throws Exception {
        this.contextManager.setUsers(usersTableModel.getUsers());
    }

    @Override
    public void saveTemporaryContextData(Context uiSharedContext) {
        // Data is already saved in the uiSharedContext
    }

    protected UsersTableModel getUsersTableModel() {
        return usersTableModel;
    }
}

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