/*

  * Copyright (c) 2003-2011, Simon Brown

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions are met:

  *

  *   - Redistributions of source code must retain the above copyright

  *     notice, this list of conditions and the following disclaimer.

  *

  *   - 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.

  *

  *   - Neither the name of Pebble nor the names of its contributors may

  *     be used to endorse or promote products derived from this software

  *     without specific prior written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS 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 COPYRIGHT OWNER OR 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.

  */

 package net.sourceforge.pebble.web.action;

 import net.sourceforge.pebble.Constants;

 import net.sourceforge.pebble.PebbleContext;

 import net.sourceforge.pebble.security.PebbleUserDetails;

 import net.sourceforge.pebble.security.SecurityRealmException;

 import net.sourceforge.pebble.web.view.View;

 import net.sourceforge.pebble.web.view.impl.BlogSecurityView;

 import javax.servlet.ServletException;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import java.util.Collection;

 import java.util.LinkedList;

 import java.util.List;

 /**

  * Edits the security properties associated with the current Blog.

  *

  * @author    Simon Brown

  */

 public class ViewBlogSecurityAction extends SecureAction {

   /**

    * Peforms the processing associated with this action.

    *

    * @param request  the HttpServletRequest instance

    * @param response the HttpServletResponse instance

    * @return the name of the next view

    */

   public View process(HttpServletRequest request, HttpServletResponse response) throws ServletException {

     try {

       getModel().put("blogOwnerUsers", filterUsersByRole(PebbleContext.getInstance().getConfiguration().getSecurityRealm().getUsers(), Constants.BLOG_OWNER_ROLE));

       getModel().put("blogPublisherUsers", filterUsersByRole(PebbleContext.getInstance().getConfiguration().getSecurityRealm().getUsers(), Constants.BLOG_PUBLISHER_ROLE));

       getModel().put("blogContributorUsers", filterUsersByRole(PebbleContext.getInstance().getConfiguration().getSecurityRealm().getUsers(), Constants.BLOG_CONTRIBUTOR_ROLE));

       getModel().put("allUsers", PebbleContext.getInstance().getConfiguration().getSecurityRealm().getUsers());

     } catch (SecurityRealmException sre) {

       throw new ServletException("Could not get list of users", sre);

     }

     return new BlogSecurityView();

   }

   private List<PebbleUserDetails> filterUsersByRole(Collection<PebbleUserDetails> users, String role) {

     List<PebbleUserDetails> list = new LinkedList<PebbleUserDetails>();

     for (PebbleUserDetails user : users) {

       if (user.isUserInRole(role)) {

         list.add(user);

       }

     }

     return list;

   }

   /**

    * Gets a list of all roles that are allowed to access this action.

    *

    * @return  an array of Strings representing role names

    * @param request   the originating request

    */

   public String[] getRoles(HttpServletRequest request) {

     return new String[]{

         Constants.BLOG_ADMIN_ROLE,

         Constants.BLOG_OWNER_ROLE

     };

   }

 }