/*
* 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.api.confirmation.TrackBackConfirmationStrategy;
import net.sourceforge.pebble.domain.*;
import net.sourceforge.pebble.web.view.NotFoundView;
import net.sourceforge.pebble.web.view.View;
import net.sourceforge.pebble.web.view.impl.ConfirmTrackBackView;
import net.sourceforge.pebble.web.view.impl.TrackBackLinkView;
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;
/**
* Generates a TrackBack link for a blog entry.
*
* @author Simon Brown
*/
public class GenerateTrackBackLinkAction extends AbstractTrackBackAction {
/** the log used by this class */
private static Log log = LogFactory.getLog(GenerateTrackBackLinkAction.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;
String entry = request.getParameter("entry");
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 ;-)
return new NotFoundView();
} else if (!blogEntry.isTrackBacksEnabled()) {
return new NotFoundView();
}
getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
TrackBackConfirmationStrategy strategy = blog.getTrackBackConfirmationStrategy();
if (strategy.confirmationRequired(blog)) {
request.getSession().setAttribute(BLOG_ENTRY_ID, blogEntry.getId());
strategy.setupConfirmation(request);
return new ConfirmTrackBackView();
} else {
generateTrackBackLink(blogEntry);
return new TrackBackLinkView();
}
}
}