/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.app.webui.servlet;
import java.io.IOException;
import java.net.InetAddress;
import java.sql.SQLException;
import java.util.Date;
import javax.mail.MessagingException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import org.apache.commons.validator.EmailValidator;
import org.dspace.app.webui.util.JSPManager;
import org.dspace.authorize.AuthorizeException;
import org.dspace.core.ConfigurationManager;
import org.dspace.core.Context;
import org.dspace.core.Email;
import org.dspace.core.I18nUtil;
import org.dspace.core.LogManager;
import org.dspace.eperson.EPerson;
/**
* Servlet for handling user feedback
*
* @author Peter Breton
* @author Robert Tansley
* @version $Revision$
*/
public class FeedbackServlet extends DSpaceServlet
{
/** log4j category */
private static Logger log = Logger.getLogger(FeedbackServlet.class);
protected void doDSGet(Context context, HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException,
SQLException, AuthorizeException
{
// Obtain information from request
// The page where the user came from
String fromPage = request.getHeader("Referer");
// Prevent spammers and splogbots from poisoning the feedback page
String host = ConfigurationManager.getProperty("dspace.hostname");
String basicHost = "";
if (host.equals("localhost") || host.equals("127.0.0.1")
|| host.equals(InetAddress.getLocalHost().getHostAddress()))
{
basicHost = host;
}
else
{
// cut off all but the hostname, to cover cases where more than one URL
// arrives at the installation; e.g. presence or absence of "www"
int lastDot = host.lastIndexOf('.');
basicHost = host.substring(host.substring(0, lastDot).lastIndexOf("."));
}
if (fromPage == null || fromPage.indexOf(basicHost) == -1)
{
throw new AuthorizeException();
}
// The email address they provided
String formEmail = request.getParameter("email");
// Browser
String userAgent = request.getHeader("User-Agent");
// Session id
String sessionID = request.getSession().getId();
// User email from context
EPerson currentUser = context.getCurrentUser();
String authEmail = null;
if (currentUser != null)
{
authEmail = currentUser.getEmail();
}
// Has the user just posted their feedback?
if (request.getParameter("submit") != null)
{
EmailValidator ev = EmailValidator.getInstance();
String feedback = request.getParameter("feedback");
// Check all data is there
if ((formEmail == null) || formEmail.equals("")
|| (feedback == null) || feedback.equals("") || !ev.isValid(formEmail))
{
log.info(LogManager.getHeader(context, "show_feedback_form",
"problem=true"));
request.setAttribute("feedback.problem", Boolean.TRUE);
JSPManager.showJSP(request, response, "/feedback/form.jsp");
return;
}
// All data is there, send the email
try
{
Email email = Email.getEmail(I18nUtil.getEmailFilename(context.getCurrentLocale(), "feedback"));
email.addRecipient(ConfigurationManager
.getProperty("feedback.recipient"));
email.addArgument(new Date()); // Date
email.addArgument(formEmail); // Email
email.addArgument(authEmail); // Logged in as
email.addArgument(fromPage); // Referring page
email.addArgument(userAgent); // User agent
email.addArgument(sessionID); // Session ID
email.addArgument(feedback); // The feedback itself
// Replying to feedback will reply to email on form
email.setReplyTo(formEmail);
email.send();
log.info(LogManager.getHeader(context, "sent_feedback", "from="
+ formEmail));
JSPManager.showJSP(request, response,
"/feedback/acknowledge.jsp");
}
catch (MessagingException me)
{
log.warn(LogManager.getHeader(context,
"error_mailing_feedback", ""), me);
JSPManager.showInternalError(request, response);
}
}
else
{
// Display feedback form
log.info(LogManager.getHeader(context, "show_feedback_form",
"problem=false"));
request.setAttribute("authenticated.email", authEmail);
JSPManager.showJSP(request, response, "/feedback/form.jsp");
}
}
protected void doDSPost(Context context, HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException,
SQLException, AuthorizeException
{
// Treat as a GET
doDSGet(context, request, response);
}
}