/*

  * 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 javax.servlet.ServletException;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import net.sourceforge.pebble.Constants;

 import net.sourceforge.pebble.api.confirmation.CommentConfirmationStrategy;

 import net.sourceforge.pebble.api.decorator.ContentDecoratorContext;

 import net.sourceforge.pebble.domain.Blog;

 import net.sourceforge.pebble.domain.BlogEntry;

 import net.sourceforge.pebble.domain.BlogService;

 import net.sourceforge.pebble.domain.BlogServiceException;

 import net.sourceforge.pebble.domain.Comment;

 import net.sourceforge.pebble.util.I18n;

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

 import net.sourceforge.pebble.web.validation.ValidationContext;

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

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

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

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

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

 import org.apache.commons.logging.Log;

 import org.apache.commons.logging.LogFactory;

 /**

  * Adds a comment to an existing blog entry.

  *

  * @author    Simon Brown

  */

 @RequireSecurityToken

 public class SaveCommentAction extends AbstractCommentAction {

   /** the log used by this class */

   private static Log log = LogFactory.getLog(SaveCommentAction.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);

     BlogEntry blogEntry;

     Comment comment;

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

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

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

     BlogService service = new BlogService();

     try {

       blogEntry = service.getBlogEntry(blog, entry);

     } catch (BlogServiceException e) {

       throw new ServletException(e);

     }

     if (blogEntry == null) {

       // just send back a 404 - this is probably somebody looking for a way

       // to send comment spam ;-)

       log.info("ignoring saveComment with no related blog entry (spam) from " + request.getRemoteAddr());

       return new NotFoundView();

     } else if (!blogEntry.isCommentsEnabled()) {

       return new CommentConfirmationView();

     }

     comment = createComment(request, blogEntry);

     ValidationContext context = validateComment(comment);

     // are we previewing or adding the comment?

     String previewButton = I18n.getMessage(blog, "comment.previewButton");

     ContentDecoratorContext decoratorContext = new ContentDecoratorContext();

     decoratorContext.setView(ContentDecoratorContext.DETAIL_VIEW);

     decoratorContext.setMedia(ContentDecoratorContext.HTML_PAGE);

     Comment decoratedComment = (Comment)comment.clone();

     blog.getContentDecoratorChain().decorate(decoratorContext, decoratedComment);

     getModel().put("decoratedComment", decoratedComment);

     getModel().put("undecoratedComment", comment);

     getModel().put("rememberMe", rememberMe);

     getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);

     getModel().put(Constants.COMMENT_KEY, comment);

     request.getSession().setAttribute("rememberMe", request.getParameter("rememberMe"));

     if (submitType == null || submitType.equalsIgnoreCase(previewButton) || context.hasErrors()) {

       return new CommentFormView();

     } else {

       CommentConfirmationStrategy strategy = blog.getCommentConfirmationStrategy();

       Comment clonedComment = (Comment)comment.clone();

       request.getSession().setAttribute(Constants.COMMENT_KEY, comment);

       if (strategy.confirmationRequired(clonedComment)) {

         strategy.setupConfirmation(request);

         return new ConfirmCommentView();

       } else {

         try {

           saveComment(request, response, blogEntry, comment);

           request.getSession().removeAttribute(Constants.COMMENT_KEY);

           return new CommentConfirmationView();

         } catch (BlogServiceException be) {

           log.error(be.getMessage(), be);

           throw new ServletException(be);

         }

       }

     }

   }

 }