/*
* Tigase Jabber/XMPP Server
* Copyright (C) 2004-2007 "Artur Hefczyc" <artur.hefczyc@tigase.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. Look for COPYING file in the top folder.
* If not, see http://www.gnu.org/licenses/.
*
* $Rev: 1144 $
* Last modified by $Author: kobit $
* $Date: 2008-09-17 18:20:04 +0100 (Wed, 17 Sep 2008) $
*/
package tigase.xmpp.impl;
import java.util.logging.Logger;
import java.util.Arrays;
import java.util.Queue;
import java.util.List;
import java.util.Map;
import tigase.db.NonAuthUserRepository;
import tigase.server.Packet;
import tigase.xml.Element;
import tigase.xml.SimpleParser;
import tigase.xml.SingletonFactory;
import tigase.xml.DomBuilderHandler;
import tigase.xmpp.XMPPImplIfc;
import tigase.xmpp.XMPPProcessor;
import tigase.xmpp.XMPPProcessorIfc;
import tigase.xmpp.XMPPResourceConnection;
import tigase.xmpp.Authorization;
import tigase.xmpp.StanzaType;
import tigase.xmpp.XMPPException;
import tigase.util.JIDUtils;
import tigase.xmpp.NotAuthorizedException;
import tigase.db.NonAuthUserRepository;
import tigase.db.UserNotFoundException;
import tigase.db.TigaseDBException;
/**
* Describe class JabberIqPrivate here.
*
*
* Created: Mon Apr 16 08:28:18 2007
*
* @author <a href="mailto:artur.hefczyc@tigase.org">Artur Hefczyc</a>
* @version $Rev: 1144 $
*/
public class JabberIqPrivate extends XMPPProcessor implements XMPPProcessorIfc {
/**
* Private logger for class instancess.
*/
private static Logger log =
Logger.getLogger("tigase.xmpp.impl.JabberIqPrivate");
private static final String XMLNS = "jabber:iq:private";
private static final String PRIVATE_KEY = XMLNS;
private static final String ID = XMLNS;
private static final String[] ELEMENTS = {"query"};
private static final String[] XMLNSS = {XMLNS};
private static final Element[] DISCO_FEATURES = {
new Element("feature", new String[] {"var"}, new String[] {XMLNS})
};
public Element[] supDiscoFeatures(final XMPPResourceConnection session)
{ return DISCO_FEATURES; }
private static final SimpleParser parser =
SingletonFactory.getParserInstance();
// Implementation of tigase.xmpp.XMPPImplIfc
public String id() { return ID; }
public String[] supElements()
{ return ELEMENTS; }
public String[] supNamespaces()
{ return XMLNSS; }
// Implementation of tigase.xmpp.XMPPProcessorIfc
/**
* Describe <code>process</code> method here.
*
* @param packet a <code>Packet</code> value
* @param session a <code>XMPPResourceConnection</code> value
* @param repo a <code>NonAuthUserRepository</code> value
* @param results a <code>Queue</code> value
*/
public void process(Packet packet, XMPPResourceConnection session,
NonAuthUserRepository repo, Queue<Packet> results,
final Map<String, Object> settings)
throws XMPPException {
// Don't do anything if session is null
if (session == null) {
log.info("Session null, dropping packet: " + packet.getStringData());
return;
} // end of if (session == null)
try {
if (packet.getElemTo() != null &&
!JIDUtils.getNodeID(packet.getElemTo()).equals(session.getUserId())) {
results.offer(Authorization.SERVICE_UNAVAILABLE.getResponseMessage(packet,
"You are not authorized to access this private storage.", true));
return;
}
if (packet.getFrom().equals(session.getConnectionId())) {
List<Element> elems = packet.getElemChildren("/iq/query");
if (elems != null && elems.size() > 0) {
Element elem = elems.get(0);
StanzaType type = packet.getType();
switch (type) {
case get:
String priv = session.getData(PRIVATE_KEY,
elem.getName()+elem.getXMLNS(), null);
log.finest("Loaded private data for key: "
+ elem.getName() + ": " + priv);
if (priv != null) {
results.offer(parseXMLData(priv, packet));
break;
}
results.offer(packet.okResult((String)null, 2));
break;
case set:
log.finest("Saving private data: " + elem.toString());
session.setData(PRIVATE_KEY,
elem.getName()+elem.getXMLNS(), elem.toString());
results.offer(packet.okResult((String)null, 0));
break;
case result:
// Should never happen, it is an error and should be ignored
break;
default:
results.offer(Authorization.BAD_REQUEST.getResponseMessage(packet,
"Request type is incorrect", false));
break;
} // end of switch (type)
} else {
results.offer(Authorization.NOT_ACCEPTABLE.getResponseMessage(packet,
"Missing query child element", true));
}
} else {
results.offer(Authorization.NOT_AUTHORIZED.getResponseMessage(packet,
"You are not authorized to access this private storage.", true));
} // end of else
} catch (NotAuthorizedException e) {
log.warning(
"Received privacy request but user session is not authorized yet: " +
packet.getStringData());
results.offer(Authorization.NOT_AUTHORIZED.getResponseMessage(packet,
"You must authorize session first.", true));
} catch (TigaseDBException e) {
log.warning("Database proble, please contact admin: " +e);
results.offer(Authorization.INTERNAL_SERVER_ERROR.getResponseMessage(packet,
"Database access problem, please contact administrator.", true));
} // end of try-catch
}
private Packet parseXMLData(String data, Packet packet) {
DomBuilderHandler domHandler = new DomBuilderHandler();
parser.parse(domHandler, data.toCharArray(), 0, data.length());
Queue<Element> elems = domHandler.getParsedElements();
Packet result = packet.okResult((Element)null, 1);
Element query = result.getElement().findChild("/iq/query");
for (Element el: elems) {
query.addChild(el);
} // end of for (Element el: elems)
return result;
}
}