src/java/org/apache/turbine/util/security/AccessControlList.java

package org.apache.turbine.util.security;

/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001-2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" and
 *    "Apache Turbine" must not be used to endorse or promote products
 *    derived from this software without prior written permission. For
 *    written permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    "Apache Turbine", nor may "Apache" appear in their name, without
 *    prior written permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

import java.io.Serializable;

import org.apache.turbine.om.security.Group;
import org.apache.turbine.om.security.Permission;
import org.apache.turbine.om.security.Role;

/**
 * This interface describes a control class that makes it
 * easy to find out if a particular User has a given Permission.
 * It also determines if a User has a a particular Role.
 *
 * @author <a href="mailto:john.mcnally@clearink.com">John D. McNally</a>
 * @author <a href="mailto:bmclaugh@algx.net">Brett McLaughlin</a>
 * @author <a href="mailto:greg@shwoop.com">Greg Ritter</a>
 * @author <a href="mailto:Rafal.Krzewski@e-point.pl">Rafal Krzewski</a>
 * @author <a href="mailto:marco@intermeta.de">Marco Kn&uuml;ttel</a>
 * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
 * @version $Id$
 */
public interface AccessControlList
        extends Serializable
{
    /** The default Session key for the Access Control List */
    public static final java.lang.String SESSION_KEY = "turbine.AccessControlList";

    /**
     * Retrieves a set of Roles an user is assigned in a Group.
     *
     * @param group the Group
     * @return the set of Roles this user has within the Group.
     */
    RoleSet getRoles(Group group);

    /**
     * Retrieves a set of Roles an user is assigned in the global Group.
     *
     * @return the set of Roles this user has within the global Group.
     */
    RoleSet getRoles();

    /**
     * Retrieves a set of Permissions an user is assigned in a Group.
     *
     * @param group the Group
     * @return the set of Permissions this user has within the Group.
     */
    PermissionSet getPermissions(Group group);

    /**
     * Retrieves a set of Permissions an user is assigned in the global Group.
     *
     * @return the set of Permissions this user has within the global Group.
     */
    PermissionSet getPermissions();

    /**
     * Checks if the user is assigned a specific Role in the Group.
     *
     * @param role the Role
     * @param group the Group
     * @return <code>true</code> if the user is assigned the Role in the Group.
     */
    boolean hasRole(Role role, Group group);

    /**
     * Checks if the user is assigned a specific Role in any of the given
     * Groups
     *
     * @param role the Role
     * @param groupset a Groupset
     * @return <code>true</code> if the user is assigned the Role in any of
     *         the given Groups.
     */
    boolean hasRole(Role role, GroupSet groupset);

    /**
     * Checks if the user is assigned a specific Role in the Group.
     *
     * @param role the Role
     * @param group the Group
     * @return <code>true</code> if the user is assigned the Role in the Group.
     */
    boolean hasRole(String role, String group);

    /**
     * Checks if the user is assigned a specifie Role in any of the given
     * Groups
     *
     * @param rolename the name of the Role
     * @param groupset a Groupset
     * @return <code>true</code> if the user is assigned the Role in any of
     *         the given Groups.
     */
    boolean hasRole(String rolename, GroupSet groupset);

    /**
     * Checks if the user is assigned a specific Role in the global Group.
     *
     * @param role the Role
     * @return <code>true</code> if the user is assigned the Role in the global Group.
     */
    boolean hasRole(Role role);

    /**
     * Checks if the user is assigned a specific Role in the global Group.
     *
     * @param role the Role
     * @return <code>true</code> if the user is assigned the Role in the global Group.
     */
    boolean hasRole(String role);

    /**
     * Checks if the user is assigned a specific Permission in the Group.
     *
     * @param permission the Permission
     * @param group the Group
     * @return <code>true</code> if the user is assigned the Permission in the Group.
     */
    boolean hasPermission(Permission permission, Group group);

    /**
     * Checks if the user is assigned a specific Permission in any of the given
     * Groups
     *
     * @param permission the Permission
     * @param groupset a Groupset
     * @return <code>true</code> if the user is assigned the Permission in any
     *         of the given Groups.
     */
    boolean hasPermission(Permission permission, GroupSet groupset);

    /**
     * Checks if the user is assigned a specific Permission in the Group.
     *
     * @param permission the Permission
     * @param group the Group
     * @return <code>true</code> if the user is assigned the Permission in the Group.
     */
    boolean hasPermission(String permission, String group);

    /**
     * Checks if the user is assigned a specific Permission in the Group.
     *
     * @param permission the Permission
     * @param group the Group
     * @return <code>true</code> if the user is assigned the Permission in the Group.
     */
    boolean hasPermission(String permission, Group group);

    /**
     * Checks if the user is assigned a specifie Permission in any of the given
     * Groups
     *
     * @param permissionName the name of the Permission
     * @param groupset a Groupset
     * @return <code>true</code> if the user is assigned the Permission in any
     *         of the given Groups.
     */
    boolean hasPermission(String permissionName, GroupSet groupset);

    /**
     * Checks if the user is assigned a specific Permission in the global Group.
     *
     * @param permission the Permission
     * @return <code>true</code> if the user is assigned the Permission in the global Group.
     */
    boolean hasPermission(Permission permission);

    /**
     * Checks if the user is assigned a specific Permission in the global Group.
     *
     * @param permission the Permission
     * @return <code>true</code> if the user is assigned the Permission in the global Group.
     */
    boolean hasPermission(String permission);

    /**
     * Returns all groups definded in the system.
     *
     * @return An Array of all defined Groups
     *
     * This is useful for debugging, when you want to display all roles
     * and permissions an user is assigned. This method is needed
     * because you can't call static methods of TurbineSecurity class
     * from within WebMacro/Velocity template
     */
    Group[] getAllGroups();
}