/*
* 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.BlogEntry;
import net.sourceforge.pebble.domain.Blog;
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.View;
import net.sourceforge.pebble.web.view.impl.TrackBackFormView;
import net.sourceforge.pebble.web.view.impl.TrackBackSentView;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.PostMethod;
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;
/**
* Adds a comment to an existing blog entry.
*
* @author Simon Brown
*/
public class SendTrackBackAction extends SecureAction {
/** the log used by this class */
private static Log log = LogFactory.getLog(SendTrackBackAction.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");
String trackBackUrl = request.getParameter("url");
String excerpt = request.getParameter("excerpt");
String trackBackResponseMessage;
Integer trackBackResponseCode;
BlogService service = new BlogService();
BlogEntry blogEntry = null;
if (entryId != null) {
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 if (trackBackUrl == null || trackBackUrl.trim().length() == 0) {
getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
return new TrackBackFormView();
} else {
// extract the information to send in the trackback
String title = blogEntry.getTitle();
String blogName = blogEntry.getBlog().getName();
String url = blogEntry.getPermalink();
// now send the trackback
try {
HttpClient httpClient = new HttpClient();
PostMethod postMethod = new PostMethod(trackBackUrl);
postMethod.addRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=" + blog.getCharacterEncoding());
NameValuePair[] data = {
new NameValuePair("title", title),
new NameValuePair("url", url),
new NameValuePair("excerpt", excerpt),
new NameValuePair("blog_name", blogName)
};
postMethod.addParameters(data);
trackBackResponseCode = new Integer(httpClient.executeMethod(postMethod));
trackBackResponseMessage = postMethod.getResponseBodyAsString();
} catch (Exception e) {
log.error(e.getMessage(), e);
throw new ServletException(e);
}
getModel().put(Constants.BLOG_ENTRY_KEY, blogEntry);
getModel().put("trackBackUrl", trackBackUrl);
getModel().put("trackBackResponseCode", trackBackResponseCode);
getModel().put("trackBackResponseMessage", trackBackResponseMessage);
return new TrackBackSentView();
}
}
/**
* 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) {
return new String[]{Constants.BLOG_CONTRIBUTOR_ROLE};
}
}