/**
* 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.MissingResourceException;
import javax.mail.MessagingException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
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;
import org.dspace.handle.HandleManager;
import org.dspace.content.Item;
import org.dspace.content.Collection;
import org.dspace.content.Metadatum;
/**
* Servlet for handling user email recommendations
*
* @author Arnaldo Dantas
* @version $Revision$
*/
public class SuggestServlet extends DSpaceServlet
{
/** log4j category */
private static Logger log = Logger.getLogger(SuggestServlet.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();
}
// Obtain information from request
String handle = request.getParameter("handle");
// Lookup Item title & collection
String title = null;
String collName = null;
if (handle != null && !handle.equals(""))
{
Item item = (Item) HandleManager.resolveToObject(context, handle);
if (item != null)
{
Metadatum[] titleDC = item.getDC("title", null, Item.ANY);
if (titleDC != null && titleDC.length > 0)
{
title = titleDC[0].value;
}
Collection[] colls = item.getCollections();
collName = colls[0].getMetadata("name");
}
}
else
{
String path = request.getPathInfo();
log.info(LogManager.getHeader(context, "invalid_id", "path=" + path));
JSPManager.showInvalidIDError(request, response, path, -1);
return;
}
if (title == null)
{
title = "";
}
if(collName == null)
{
collName = "";
}
request.setAttribute("suggest.title", title);
// User email from context
EPerson currentUser = context.getCurrentUser();
String authEmail = null;
String userName = null;
if (currentUser != null)
{
authEmail = currentUser.getEmail();
userName = currentUser.getFullName();
}
if (request.getParameter("submit") != null)
{
String recipAddr = request.getParameter("recip_email");
// the only required field is recipient email address
if (recipAddr == null || recipAddr.equals(""))
{
log.info(LogManager.getHeader(context, "show_suggest_form",
"problem=true"));
request.setAttribute("suggest.problem", Boolean.TRUE);
JSPManager.showJSP(request, response, "/suggest/suggest.jsp");
return;
}
String recipName = request.getParameter("recip_name");
if (recipName == null || "".equals(recipName))
{
try
{
recipName = I18nUtil.getMessage("org.dspace.app.webui.servlet.SuggestServlet.recipient", context);
}
catch (MissingResourceException e)
{
log.warn(LogManager.getHeader(context, "show_suggest_form", "Missing Resource: org.dspace.app.webui.servlet.SuggestServlet.sender"));
recipName = "colleague";
}
}
String senderName = request.getParameter("sender_name");
if (senderName == null || "".equals(senderName) )
{
// use userName if available
if (userName != null)
{
senderName = userName;
}
else
{
try
{
senderName = I18nUtil.getMessage("org.dspace.app.webui.servlet.SuggestServlet.sender", context);
}
catch (MissingResourceException e)
{
log.warn(LogManager.getHeader(context, "show_suggest_form", "Missing Resource: org.dspace.app.webui.servlet.SuggestServlet.sender"));
senderName = "A DSpace User";
}
}
}
String senderAddr = request.getParameter("sender_email");
if (StringUtils.isEmpty(senderAddr) && authEmail != null)
{
// use authEmail if available
senderAddr = authEmail;
}
String itemUri = HandleManager.getCanonicalForm(handle);
String itemUrl = HandleManager.resolveToURL(context,handle);
String message = request.getParameter("message");
String siteName = ConfigurationManager.getProperty("dspace.name");
// All data is there, send the email
try
{
Email email = Email.getEmail(I18nUtil.getEmailFilename(context.getCurrentLocale(), "suggest"));
email.addRecipient(recipAddr); // recipient address
email.addArgument(recipName); // 1st arg - recipient name
email.addArgument(senderName); // 2nd arg - sender name
email.addArgument(siteName); // 3rd arg - repository name
email.addArgument(title); // 4th arg - item title
email.addArgument(itemUri); // 5th arg - item handle URI
email.addArgument(itemUrl); // 6th arg - item local URL
email.addArgument(collName); // 7th arg - collection name
email.addArgument(message); // 8th arg - user comments
// Set sender's address as 'reply-to' address if supplied
if ( senderAddr != null && ! "".equals(senderAddr))
{
email.setReplyTo(senderAddr);
}
// Only actually send the email if feature is enabled
if (ConfigurationManager.getBooleanProperty("webui.suggest.enable", false))
{
email.send();
} else
{
throw new MessagingException("Suggest item email not sent - webui.suggest.enable = false");
}
log.info(LogManager.getHeader(context, "sent_suggest",
"from=" + senderAddr));
JSPManager.showJSP(request, response, "/suggest/suggest_ok.jsp");
}
catch (MessagingException me)
{
log.warn(LogManager.getHeader(context, "error_mailing_suggest", ""), me);
JSPManager.showInternalError(request, response);
}
}
else
{
// Display suggest form
log.info(LogManager.getHeader(context, "show_suggest_form", "problem=false"));
request.setAttribute("authenticated.email", authEmail);
request.setAttribute("eperson.name", userName);
JSPManager.showJSP(request, response, "/suggest/suggest.jsp"); //asd
}
}
protected void doDSPost(Context context, HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException, SQLException, AuthorizeException
{
// Treat as a GET
doDSGet(context, request, response);
}
}