/*
* Copyright (C) 2008 Jive Software. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.openfire.archive;
import org.jivesoftware.openfire.cluster.ClusterManager;
import org.jivesoftware.openfire.interceptor.InterceptorManager;
import org.jivesoftware.openfire.interceptor.PacketInterceptor;
import org.jivesoftware.openfire.interceptor.PacketRejectedException;
import org.jivesoftware.openfire.session.Session;
import org.picocontainer.Startable;
import org.xmpp.packet.JID;
import org.xmpp.packet.Message;
import org.xmpp.packet.Packet;
import java.util.Date;
/**
* Intercepts packets to track conversations. Only the following messages
* are processed:
* <ul>
* <li>Messages sent between local users.</li>
* <li>Messages sent between local user and remote entities (e.g. remote users).</li>
* <li>Messages sent between local users and users using legacy networks (i.e. transports).</li>
* </ul>
* Therefore, messages that are sent to Publish-Subscribe or any other internal service are ignored.
*
* @author Matt Tucker
*/
public class ArchiveInterceptor implements PacketInterceptor, Startable {
private ConversationManager conversationManager;
public ArchiveInterceptor(ConversationManager conversationManager) {
this.conversationManager = conversationManager;
}
public void interceptPacket(Packet packet, Session session, boolean incoming, boolean processed)
throws PacketRejectedException
{
// Ignore any packets that haven't already been processed by interceptors.
if (!processed) {
return;
}
if (packet instanceof Message) {
// Ignore any outgoing messages (we'll catch them when they're incoming).
if (!incoming) {
return;
}
Message message = (Message) packet;
// Ignore any messages that don't have a body so that we skip events.
// Note: XHTML messages should always include a body so we should be ok. It's
// possible that we may need special XHTML filtering in the future, however.
if (message.getBody() != null) {
// Only process messages that are between two users, group chat rooms, or gateways.
if (conversationManager.isConversation(message)) {
// Process this event in the senior cluster member or local JVM when not in a cluster
if (ClusterManager.isSeniorClusterMember()) {
conversationManager.processMessage(message.getFrom(), message.getTo(), message.getBody(), message.toXML(), new Date());
}
else {
JID sender = message.getFrom();
JID receiver = message.getTo();
ConversationEventsQueue eventsQueue = conversationManager.getConversationEventsQueue();
eventsQueue.addChatEvent(conversationManager.getConversationKey(sender, receiver),
ConversationEvent.chatMessageReceived(sender, receiver,
conversationManager.isMessageArchivingEnabled() ? message.getBody() : null,
new Date()));
}
}
}
}
}
public void start() {
InterceptorManager.getInstance().addInterceptor(this);
}
public void stop() {
InterceptorManager.getInstance().removeInterceptor(this);
conversationManager = null;
}
}