/*

  * 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.domain.Blog;

 import net.sourceforge.pebble.domain.StaticPage;

 import net.sourceforge.pebble.service.StaticPageService;

 import net.sourceforge.pebble.service.StaticPageServiceException;

 import net.sourceforge.pebble.web.security.RequireSecurityToken;

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

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

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

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

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

 import org.apache.commons.logging.Log;

 import org.apache.commons.logging.LogFactory;

 import javax.servlet.ServletException;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 /**

  * Allows the user to manage (edit and remove) a static page.

  *

  * @author    Simon Brown

  */

 @RequireSecurityToken

 public class ManageStaticPageAction extends SecureAction {

   /** the log used by this class */

   private static final Log log = LogFactory.getLog(ManageStaticPageAction.class);

   /**

    * 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 {

     Blog blog = (Blog)getModel().get(Constants.BLOG_KEY);

     String id = request.getParameter("page");

     String confirm = request.getParameter("confirm");

     String submit = request.getParameter("submit");

     StaticPageService service = new StaticPageService();

     StaticPage staticPage = null;

     try {

       staticPage = service.getStaticPageById(blog, id);

     } catch (StaticPageServiceException e) {

       throw new ServletException(e);

     }

     if (staticPage == null) {

       return new NotFoundView();

     }

     if (submit.equals("Edit")) {

       return new ForwardView("/editStaticPage.secureaction?page=" + id);

     } else if (submit.equalsIgnoreCase("Remove") && confirm != null && confirm.equals("true")) {

       try {

         if (service.lock(staticPage)) {

           service.removeStaticPage(staticPage);

           blog.info("Static page \"" + staticPage.getTitle() + "\" removed.");

           service.unlock(staticPage);

         } else {

           getModel().put(Constants.STATIC_PAGE_KEY, staticPage);

           return new StaticPageLockedView();

         }

         return new RedirectView(blog.getUrl() + "viewStaticPages.secureaction");

       } catch (StaticPageServiceException e) {

         throw new ServletException(e);

       }

     } else if (submit.equalsIgnoreCase("Unlock") && confirm != null && confirm.equals("true")) {

         service.unlock(staticPage);

         blog.info("Static page <a href=\"" + staticPage.getLocalPermalink() + "\">" + staticPage.getTitle() + "</a> unlocked.");

         return new RedirectView(blog.getUrl() + "viewStaticPages.secureaction");

     }

     return new RedirectView(staticPage.getLocalPermalink());

   }

   /**

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

    *

    * @return  an array of Strings representing role names

    * @param request

    */

   public String[] getRoles(HttpServletRequest request) {

     String submit = request.getParameter("submit");

     if (submit != null) {

       if (submit.equalsIgnoreCase("Edit")) {

         return new String[]{Constants.BLOG_CONTRIBUTOR_ROLE};

       } else if (submit.equalsIgnoreCase("Remove")) {

         return new String[]{Constants.BLOG_CONTRIBUTOR_ROLE};

       } else if (submit.equalsIgnoreCase("Unlock")) {

         return new String[]{Constants.BLOG_ADMIN_ROLE, Constants.BLOG_OWNER_ROLE, Constants.BLOG_CONTRIBUTOR_ROLE};

       }

     }

     // default back to blog owner role

     return new String[]{Constants.BLOG_OWNER_ROLE};

   }

 }