/**
* The packet is a typical 'set' or 'get' update targeted at the server. Notice that the set could
* be a roster removal in which case we have to generate a local roster removal update as well as
* a new roster removal to send to the the roster item's owner.
*
* @param packet The packet that triggered this update
* @return Either a response to the roster update or null if the packet is corrupt and the session
* was closed down
*/
private IQ manageRoster(org.xmpp.packet.Roster packet)
throws UnauthorizedException, UserAlreadyExistsException, SharedGroupException {
IQ returnPacket = null;
JID sender = packet.getFrom();
IQ.Type type = packet.getType();
try {
if ((sender.getNode() == null
|| !RosterManager.isRosterServiceEnabled()
|| !userManager.isRegisteredUser(sender.getNode()))
&& IQ.Type.get == type) {
// If anonymous user asks for his roster or roster service is disabled then
// return an empty roster
IQ reply = IQ.createResultIQ(packet);
reply.setChildElement("query", "jabber:iq:roster");
return reply;
}
if (!localServer.isLocal(sender)) {
// Sender belongs to a remote server so discard this IQ request
Log.warn("Discarding IQ roster packet of remote user: " + packet);
return null;
}
Roster cachedRoster = userManager.getUser(sender.getNode()).getRoster();
if (IQ.Type.get == type) {
returnPacket = cachedRoster.getReset();
returnPacket.setType(IQ.Type.result);
returnPacket.setTo(sender);
returnPacket.setID(packet.getID());
// Force delivery of the response because we need to trigger
// a presence probe from all contacts
deliverer.deliver(returnPacket);
returnPacket = null;
} else if (IQ.Type.set == type) {
for (org.xmpp.packet.Roster.Item item : packet.getItems()) {
if (item.getSubscription() == org.xmpp.packet.Roster.Subscription.remove) {
removeItem(cachedRoster, packet.getFrom(), item);
} else {
if (cachedRoster.isRosterItem(item.getJID())) {
// existing item
RosterItem cachedItem = cachedRoster.getRosterItem(item.getJID());
cachedItem.setAsCopyOf(item);
cachedRoster.updateRosterItem(cachedItem);
} else {
// new item
cachedRoster.createRosterItem(item);
}
}
}
returnPacket = IQ.createResultIQ(packet);
}
} catch (UserNotFoundException e) {
throw new UnauthorizedException(e);
}
return returnPacket;
}
/**
* Obtain the roster for the given address or null if the address doesn't have a roster.
*
* @param address The address to check
* @return The roster or null if the address is not managed on the server
*/
private Roster getRoster(JID address) {
String username;
Roster roster = null;
if (localServer.isLocal(address) && userManager.isRegisteredUser(address.getNode())) {
username = address.getNode();
try {
roster = rosterManager.getRoster(username);
} catch (UserNotFoundException e) {
// Do nothing
}
}
return roster;
}
@Override
public IQ handleIQ(IQ packet) throws UnauthorizedException {
IQ result = IQ.createResultIQ(packet);
String username = packet.getFrom().getNode();
if (!serverName.equals(packet.getFrom().getDomain()) || username == null) {
// Users of remote servers are not allowed to get their "shared groups". Users of
// remote servers cannot have shared groups in this server.
// Besides, anonymous users do not belong to shared groups so answer an error
result.setChildElement(packet.getChildElement().createCopy());
result.setError(PacketError.Condition.not_allowed);
return result;
}
Collection<Group> groups = rosterManager.getSharedGroups(username);
Element sharedGroups =
result.setChildElement("sharedgroup", "http://www.jivesoftware.org/protocol/sharedgroup");
for (Group sharedGroup : groups) {
String displayName = sharedGroup.getProperties().get("sharedRoster.displayName");
if (displayName != null) {
sharedGroups.addElement("group").setText(displayName);
}
}
return result;
}