com.liferay.portal.kernel.security.permission.resource.DynamicInheritancePermissionLogic.java Source code

Introduction

Here is the source code for com.liferay.portal.kernel.security.permission.resource.DynamicInheritancePermissionLogic.java

Source

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.portal.kernel.security.permission.resource;

import com.liferay.petra.function.UnsafeFunction;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.model.GroupedModel;
import com.liferay.portal.kernel.security.permission.ActionKeys;
import com.liferay.portal.kernel.security.permission.PermissionChecker;

import java.util.Objects;

/**
 * @author Preston Crary
 */
public class DynamicInheritancePermissionLogic<C extends GroupedModel, P extends GroupedModel>
        implements ModelResourcePermissionLogic<C> {

    public DynamicInheritancePermissionLogic(ModelResourcePermission<P> parentModelResourcePermission,
            UnsafeFunction<C, P, ? extends PortalException> fetchParentUnsafeFunction, boolean checkParentAccess) {

        _parentModelResourcePermission = Objects.requireNonNull(parentModelResourcePermission);
        _portletResourcePermission = Objects
                .requireNonNull(parentModelResourcePermission.getPortletResourcePermission());
        _fetchParentUnsafeFunction = Objects.requireNonNull(fetchParentUnsafeFunction);
        _checkParentAccess = checkParentAccess;
    }

    @Override
    public Boolean contains(PermissionChecker permissionChecker, String name, C child, String actionId)
            throws PortalException {

        if (!actionId.equals(ActionKeys.VIEW)) {
            return null;
        }

        P parent = _fetchParentUnsafeFunction.apply(child);

        if (parent == null) {
            if (_portletResourcePermission.contains(permissionChecker, child.getGroupId(), ActionKeys.VIEW)) {

                return null;
            }

            return false;
        }

        if (_checkParentAccess
                && _parentModelResourcePermission.contains(permissionChecker, parent, ActionKeys.ACCESS)) {

            return null;
        }

        if (_parentModelResourcePermission.contains(permissionChecker, parent, ActionKeys.VIEW)) {

            return null;
        }

        return false;
    }

    private final boolean _checkParentAccess;
    private final UnsafeFunction<C, P, ? extends PortalException> _fetchParentUnsafeFunction;
    private final ModelResourcePermission<P> _parentModelResourcePermission;
    private final PortletResourcePermission _portletResourcePermission;

}