/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2000-2001 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 Jetspeed" 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" or
 *    "Apache Jetspeed", 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/>.
 */

package org.apache.jetspeed.services.security;

// Jetspeed imports
import org.apache.jetspeed.om.security.JetspeedUser;
import org.apache.jetspeed.om.profile.Entry;
import org.apache.jetspeed.portal.Portlet;
import org.apache.jetspeed.services.security.PortalResource;

// Turbine imports
import org.apache.turbine.services.Service;

/**
 * <p> The <code>PortalAccessController</code> interface defines a contract between 
 * the portal and security provider required for authorization to portal-secure areas.
 * This interface enables an application to be independent of the underlying 
 * authorization technology.
 *
 * 
 * @author <a href="mailto:david@bluesunrise.com">David Sean Taylor</a>
 * @version $Id: PortalAccessController.java,v 1.3 2002/08/25 19:45:07 paulsp Exp $
 */

public interface PortalAccessController extends Service
{
    public String SERVICE_NAME = "PortalAccessController";

    /** Given a <code>JetspeedUser</code>, authorize that user to perform the secured action on
     * the given Portlet Instance (<code>Entry</code>) resource. If the user does not have
     * sufficient privilege to perform the action on the resource, the check returns false,
     * otherwise when sufficient privilege is present, checkPermission returns true.
     *
     * @param user the user to be checked.
     * @param entry the portlet instance resource.
     * @param action the secured action to be performed on the resource by the user.
     * @return boolean true if the user has sufficient privilege.
     * @depracated Use checkpermission(user, entry, action, owner)
     */
    public boolean checkPermission(JetspeedUser user, Entry entry, String action); 

    /**
     * Given a <code>JetspeedUser</code>, authorize that user to perform the secured action on
     * the given Portlet Instance (<code>Entry</code>) resource. If the user does not have
     * sufficient privilege to perform the action on the resource, the check returns false,
     * otherwise when sufficient privilege is present, checkPermission returns true.
     *
     * @param user the user to be checked.
     * @param entry the portlet instance resource.
     * @param action the secured action to be performed on the resource by the user.
     * @param owner of the entry, i.e. the username
     * @return boolean true if the user has sufficient privilege.
     */
    public boolean checkPermission(JetspeedUser user, Entry entry, String action, String owner); 

    /**
     * Given a <code>JetspeedUser</code>, authorize that user to perform the secured action on
     * the given <code>Portlet</code> resource. If the user does not have
     * sufficient privilege to perform the action on the resource, the check returns false,
     * otherwise when sufficient privilege is present, checkPermission returns true.
     *
     * @param user the user to be checked.
     * @param portlet the portlet resource.
     * @param action the secured action to be performed on the resource by the user.
     * @return boolean true if the user has sufficient privilege.
     *
     * @depracated Use checkpermission(user, portlet, action, owner)
     */
    public boolean checkPermission(JetspeedUser user, Portlet portlet, String action); 

    /**
     * Given a <code>JetspeedUser</code>, authorize that user to perform the secured action on
     * the given <code>Portlet</code> resource. If the user does not have
     * sufficient privilege to perform the action on the resource, the check returns false,
     * otherwise when sufficient privilege is present, checkPermission returns true.
     *
     * @param user the user to be checked.
     * @param portlet the portlet resource.
     * @param action the secured action to be performed on the resource by the user.
     * @param owner of the portlet, i.e. the username
     * @return boolean true if the user has sufficient privilege.
     */
    public boolean checkPermission(JetspeedUser user, Portlet portlet, String action, String owner); 

    /**
     * Given a <code>JetspeedUser</code>, authorize that user to perform the secured action on
     * the given resource. If the user does not have
     * sufficient privilege to perform the action on the resource, the check returns false,
     * otherwise when sufficient privilege is present, checkPermission returns true.
     *
     * @param user the user to be checked.
     * @param resource requesting an action
     * @param action the secured action to be performed on the resource by the user.
     * @return boolean true if the user has sufficient privilege.
     */
    public boolean checkPermission(JetspeedUser user, PortalResource resource, String action); 
}



