/*
* 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.util.SecurityUtils;
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.web.view.NotFoundView;
import net.sourceforge.pebble.web.view.PdfView;
import net.sourceforge.pebble.web.view.View;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Allows the user to export current blog entry as a PDF file.
*
* @author Alexander Zagniotov
*/
public class BlogEntryToPdfAction extends Action {
private static final Log log = LogFactory.getLog(BlogEntryToPdfAction.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 entryId = request.getParameter("entry");
BlogEntry blogEntry = null;
if (entryId != null) {
BlogService service = new BlogService();
try {
blogEntry = service.getBlogEntry(blog, entryId);
} catch (BlogServiceException e) {
throw new ServletException(e);
}
}
if (blogEntry == null) {
// the entry cannot be found - it may have been removed or the
// requesting URL was wrong
return new NotFoundView();
} else {
String filename = this.buildPermalink(blogEntry);
return new PdfView(blogEntry, filename + ".pdf");
}
}
private String buildPermalink(BlogEntry blogEntry) {
String title = blogEntry.getTitle();
if (title == null || title.length() == 0) {
title = "" + blogEntry.getId();
} else {
title = title.toLowerCase();
title = title.replaceAll("[\\. ,;/\\\\-]", "_");
title = title.replaceAll("[^a-z0-9_]", "");
title = title.replaceAll("_+", "_");
title = title.replaceAll("^_*", "");
title = title.replaceAll("_*$", "");
}
// if the title has been blanked out, use the blog entry instead
if (title == null || title.length() == 0) {
title = "" + blogEntry.getId();
}
return title;
}
}