/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  The ASF licenses this file to You
 * 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.  For additional information regarding
 * copyright in this work, please see the NOTICE file in the top level
 * directory of this distribution.
 */

package org.apache.roller.weblogger.ui.struts2.util;

import java.util.List;


/**
 * Implemented by struts2 actions which want to enforce some level of security
 * protection on their action.
 * 
 * Available enforcements are ...
 *   - require a logged in user
 *   - require a valid weblog to work on
 *   - require a specific user role, such as "admin"
 *   - require a specific weblog permission
 *
 */
public interface UISecurityEnforced {
    
    /**
     * Does the action require an authenticated user?
     *
     * @return boolean True if authenticated user is required, false otherwise.
     */
    boolean isUserRequired();
    
    
    /**
     * Does the action require a valid weblog to work on?
     *
     * This only takes effect if isUserRequired() is 'true'.
     *
     * @return boolean True if action weblog is required, false otherwise.
     */
    boolean isWeblogRequired();
    
    
    /**
     * List of global permission actions required to access resource.
     */
    List<String> requiredWeblogPermissionActions();
    
    
    /** 
     * List of weblog permissions required to access action if applicable.
     */
    List<String> requiredGlobalPermissionActions();
}