Examples of org.xmpp.packet.IQ

org.xmpp.packet.IQ
IQ (Info/Query) packet. IQ packets are used to get and set information on the server, including authentication, roster operations, and creating accounts. Each IQ packet has a specific type that indicates what type of action is being taken: "get", "set", "result", or "error".
IQ packets can contain a single child element that exists in a extended XML namespace.


    public void process(Packet packet) throws UnauthorizedException, PacketException {
        // Check if user is allowed to send packet to this service
        if (packet instanceof IQ) {
            // Handle disco packets
            IQ iq = (IQ) packet;
            // Ignore IQs of type ERROR or RESULT
            if (IQ.Type.error == iq.getType() || IQ.Type.result == iq.getType()) {
                return;
            }
            processIQ(iq);
        }
    }

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            processIQ(iq);
        }
    }


    private void processIQ(IQ iq) {
        IQ reply = IQ.createResultIQ(iq);
        Element childElement = iq.getChildElement();
        String namespace = childElement.getNamespaceURI();
        Element childElementCopy = iq.getChildElement().createCopy();
        reply.setChildElement(childElementCopy);


        if ("http://jabber.org/protocol/disco#info".equals(namespace)) {
            reply = XMPPServer.getInstance().getIQDiscoInfoHandler().handleIQ(iq);
            router.route(reply);
            return;
        } else if ("http://jabber.org/protocol/disco#items".equals(namespace)) {
            // a component
            reply = XMPPServer.getInstance().getIQDiscoItemsHandler().handleIQ(iq);
            router.route(reply);
            return;
        } else if (NAMESPACE.equals(namespace) && enabled) {


            Element candidateElement = childElementCopy.element("candidate");
            String sid = childElementCopy.attribute("sid").getValue() + "-" + iq.getFrom();


            if (candidateElement != null) {
                childElementCopy.remove(candidateElement);
                Element candidate = childElementCopy.addElement("candidate ");
                ProxyCandidate proxyCandidate = mediaProxy.addRelayAgent(sid, iq.getFrom().toString());
                Log.debug("MediaProxyService: "+sid);
                proxyCandidate.start();
                candidate.addAttribute("name", "voicechannel");
                candidate.addAttribute("ip", mediaProxy.getPublicIP());
                candidate.addAttribute("porta", String.valueOf(proxyCandidate.getLocalPortA()));
                candidate.addAttribute("portb", String.valueOf(proxyCandidate.getLocalPortB()));
                candidate.addAttribute("pass", proxyCandidate.getPass());


            } else {
                candidateElement = childElementCopy.element("relay");
                if (candidateElement != null) {
                    MediaProxySession session = mediaProxy.getSession(sid);
                    Log.debug("MediaProxyService: "+sid);
                    if (session != null) {
                        Attribute pass = candidateElement.attribute("pass");


                        if (pass != null && pass.getValue().trim().equals(session.getPass().trim())) {
                            Attribute portA = candidateElement.attribute("porta");
                            Attribute portB = candidateElement.attribute("portb");
                            Attribute hostA = candidateElement.attribute("hosta");
                            Attribute hostB = candidateElement.attribute("hostb");


                            try {
                                if (hostA != null && portA != null) {
                                    for (int i = 0; i < 2; i++) {
                                        session.sendFromPortA(hostB.getValue(), Integer.parseInt(portB.getValue()));
                                    }
                                }
                            }
                            catch (Exception e) {
                                Log.error(e.getMessage(), e);
                            }


                        } else {
                            reply.setError(PacketError.Condition.forbidden);
                        }
                    }
                    childElementCopy.remove(candidateElement);
                } else {
                    candidateElement = childElementCopy.element("publicip");
                    if (candidateElement != null) {
                        childElementCopy.remove(candidateElement);
                        Element publicIp = childElementCopy.addElement("publicip");
                        try {
                            String ip = sessionManager.getSession(iq.getFrom()).getHostAddress();
                            if (ip != null) {
                                publicIp.addAttribute("ip", ip);
                            }
                        } catch (UnknownHostException e) {
                            Log.error(e.getMessage(), e);
                        }


                    } else {
                        childElementCopy.remove(candidateElement);
                        reply.setError(PacketError.Condition.forbidden);
                    }


                }
            }
        } else {
            // Answer an error since the server can't handle the requested namespace
            reply.setError(PacketError.Condition.service_unavailable);
        }


        try {
            if (Log.isDebugEnabled()) {
                Log.debug("MediaProxyService: RETURNED:" + reply.toXML());
            }
            router.route(reply);
        }
        catch (Exception e) {
            Log.error(e.getMessage(), e);

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     * @return The reply or null if no reply
     */
    @Override
  public IQ handleIQ(IQ packet) throws UnauthorizedException, PacketException {
        try {
            IQ returnPacket = null;
            org.xmpp.packet.Roster roster = (org.xmpp.packet.Roster)packet;


            JID recipientJID = packet.getTo();


            // The packet is bound for the server and must be roster management
            if (recipientJID == null || recipientJID.getNode() == null ||
                    !UserManager.getInstance().isRegisteredUser(recipientJID.getNode())) {
                returnPacket = manageRoster(roster);
            }
            // The packet must be a roster removal from a foreign domain user.
            else {
                removeRosterItem(roster);
            }
            return returnPacket;
        }
        catch (SharedGroupException e) {
            IQ result = IQ.createResultIQ(packet);
            result.setChildElement(packet.getChildElement().createCopy());
            result.setError(PacketError.Condition.not_acceptable);
            return result;
        }
        catch (Exception e) {
            if (e.getCause() instanceof IDNAException) {
                Log.warn(LocaleUtils.getLocalizedString("admin.error"), e);
                IQ result = IQ.createResultIQ(packet);
                result.setChildElement(packet.getChildElement().createCopy());
                result.setError(PacketError.Condition.jid_malformed);
                return result;
            }
            else {
                Log.error(LocaleUtils.getLocalizedString("admin.error"), e);
                IQ result = IQ.createResultIQ(packet);
                result.setChildElement(packet.getChildElement().createCopy());
                result.setError(PacketError.Condition.internal_server_error);
                return result;
            }
        }
    }

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     * @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);

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        else if (packet instanceof Presence) {
            // presence packets are dropped silently
            //dropPacket(packet);
        }
        else if (packet instanceof IQ) {
            IQ iq = (IQ) packet;
            // Check if we need to unwrap the packet
            Element child = iq.getChildElement();
            if (child != null && "session".equals(child.getName()) &&
                    "http://jabber.org/protocol/connectionmanager"
                            .equals(child.getNamespacePrefix())) {
                Element send = child.element("send");
                if (send != null) {

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        info = new IQHandlerInfo("vCard", "vcard-temp");
    }


    @Override
  public IQ handleIQ(IQ packet) throws UnauthorizedException, PacketException {
        IQ result = IQ.createResultIQ(packet);
        IQ.Type type = packet.getType();
        if (type.equals(IQ.Type.set)) {
            try {
                User user = userManager.getUser(packet.getFrom().getNode());
                Element vcard = packet.getChildElement();
                if (vcard != null) {
                    VCardManager.getInstance().setVCard(user.getUsername(), vcard);
                }
            }
            catch (UserNotFoundException e) {
                result = IQ.createResultIQ(packet);
                result.setChildElement(packet.getChildElement().createCopy());
                result.setError(PacketError.Condition.item_not_found);
            }
            catch (Exception e) {
                Log.error(e.getMessage(), e);
                result.setError(PacketError.Condition.internal_server_error);
            }
        }
        else if (type.equals(IQ.Type.get)) {
            JID recipient = packet.getTo();
            // If no TO was specified then get the vCard of the sender of the packet
            if (recipient == null) {
                recipient = packet.getFrom();
            }
            // By default return an empty vCard
            result.setChildElement("vCard", "vcard-temp");
            // Only try to get the vCard values of non-anonymous users
            if (recipient != null) {
                if (recipient.getNode() != null && server.isLocal(recipient)) {
                    VCardManager vManager = VCardManager.getInstance();
                    Element userVCard = vManager.getVCard(recipient.getNode());
                    if (userVCard != null) {
                        // Check if the requester wants to ignore some vCard's fields
                        Element filter = packet.getChildElement()
                                .element(QName.get("filter", "vcard-temp-filter"));
                        if (filter != null) {
                            // Create a copy so we don't modify the original vCard
                            userVCard = userVCard.createCopy();
                            // Ignore fields requested by the user
                            for (Iterator toFilter = filter.elementIterator(); toFilter.hasNext();)
                            {
                                Element field = (Element) toFilter.next();
                                Element fieldToRemove = userVCard.element(field.getName());
                                if (fieldToRemove != null) {
                                    fieldToRemove.detach();
                                }
                            }
                        }
                        result.setChildElement(userVCard);
                    }
                }
                else {
                    result = IQ.createResultIQ(packet);
                    result.setChildElement(packet.getChildElement().createCopy());
                    result.setError(PacketError.Condition.item_not_found);
                }
            }
        }
        else {
            result.setChildElement(packet.getChildElement().createCopy());
            result.setError(PacketError.Condition.not_acceptable);
        }
        return result;
    }

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        //    <join-check xmlns="http://jivesoftware.com/clearspace">
        //        <userjid>username@example.org</userjid>
        //        <roomjid>14-1234@clearspace-conference.example.org</roomjid>
        //    </join-check>
        // </iq>
        IQ query = new IQ();
        query.setFrom(csMucDomain);
        Element cmd = query.setChildElement("join-check", "http://jivesoftware.com/clearspace");
        Element userjidElement = cmd.addElement("userjid");
        userjidElement.setText(userjid.toBareJID());
        Element roomjidElement = cmd.addElement("roomjid");
        roomjidElement.setText(room.getJID().toBareJID());


        IQ result = ClearspaceManager.getInstance().query(query, 15000);
        if (result == null) {
            // No answer was received, assume false for security reasons.
            if (Log.isDebugEnabled()) {
                Log.debug("No answer from Clearspace on join-check in ClearspaceMUCEventDelegate. User: "
                        + userjid.toBareJID() + " Room: " + room.getJID().toBareJID());
            }
            return false;
        }


        if (result.getType() != IQ.Type.error) {
            // No error, that indicates that we were successful and the user is permitted.
            return true;
        }


        // No successful return, not allowed.

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    @Override
  public Map<String, String> getRoomConfig(String roomName) {
        Map<String, String> roomConfig = new HashMap<String, String>();


        IQ iq = new IQ(IQ.Type.get);
        iq.setFrom(csMucDomain);
        iq.setID("get_room_config_" + StringUtils.randomString(3));
        Element child = iq.setChildElement("get-room-config", "http://jivesoftware.com/clearspace");
        Element roomjidElement = child.addElement("roomjid");
        JID roomJid = new JID(roomName + "@" + csMucDomain);
        roomjidElement.setText(roomJid.toBareJID());
        IQ result = ClearspaceManager.getInstance().query(iq, 15000);
        if (result == null) {
            // No answer was received from Clearspace, so return null.
            Log.warn(GET_ROOM_CONFIG_WARNING + " Room: " + roomJid.toBareJID());
            return null;
        }
        else if (result.getType() != IQ.Type.result) {
            // The reply was not a valid result containing the room configuration, so return null.
            Log.warn(GET_ROOM_CONFIG_WARNING + " Room: " + roomJid.toBareJID());
            return null;
        }


        // Setup room configuration based on the configuration values in the result packet.
        Element query = result.getChildElement();
        if (query == null) {
            Log.warn(GET_ROOM_CONFIG_WARNING + " Room: " + roomJid.toBareJID());
            return null;
        }
        Element xElement = query.element("x");

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                isRegistered = remoteUsersCache.get(user.toBareJID());
                if (isRegistered == null) {
                    // No information is cached so check user identity and cache it
                    // A disco#info is going to be sent to the bare JID of the user. This packet
                    // is going to be handled by the remote server.
                    IQ iq = new IQ(IQ.Type.get);
                    iq.setFrom(server.getServerInfo().getXMPPDomain());
                    iq.setTo(user.toBareJID());
                    iq.setChildElement("query", "http://jabber.org/protocol/disco#info");
                    // Send the disco#info request to the remote server. The reply will be
                    // processed by the IQResultListener (interface that this class implements)
                    server.getIQRouter().addIQResultListener(iq.getID(), this);
                    synchronized (user.toBareJID().intern()) {
                        server.getIQRouter().route(iq);
                        // Wait for the reply to be processed. Time out in 1 minute.
                        try {
                            user.toBareJID().intern().wait(60000);

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        info = new IQHandlerInfo("query", "jabber:iq:last");
    }


    @Override
  public IQ handleIQ(IQ packet) throws UnauthorizedException {
        IQ reply = IQ.createResultIQ(packet);
        Element lastActivity = reply.setChildElement("query", "jabber:iq:last");
        String sender = packet.getFrom().getNode();
        String username = packet.getTo() == null ? null : packet.getTo().getNode();


        // Check if any of the usernames is null
        if (sender == null || username == null) {
            reply.setError(PacketError.Condition.forbidden);
            return reply;
        }


        try {
            RosterItem item = rosterManager.getRoster(username).getRosterItem(packet.getFrom());
            // Check that the user requesting this information is subscribed to the user's presence
            if (item.getSubStatus() == RosterItem.SUB_FROM ||
                    item.getSubStatus() == RosterItem.SUB_BOTH) {
                if (sessionManager.getSessions(username).isEmpty()) {
                    User user = UserManager.getInstance().getUser(username);
                    // The user is offline so answer the user's "last available time and the
                    // status message of the last unavailable presence received from the user"
                    long lastActivityTime = presenceManager.getLastActivity(user);
                    if (lastActivityTime > -1) {
                        // Convert it to seconds
                        lastActivityTime = lastActivityTime / 1000;
                    }
                    lastActivity.addAttribute("seconds", String.valueOf(lastActivityTime));
                    String lastStatus = presenceManager.getLastPresenceStatus(user);
                    if (lastStatus != null && lastStatus.length() > 0) {
                        lastActivity.setText(lastStatus);
                    }
                }
                else {
                    // The user is online so answer seconds=0
                    lastActivity.addAttribute("seconds", "0");
                }
            }
            else {
                reply.setError(PacketError.Condition.forbidden);
            }
        }
        catch (UserNotFoundException e) {
            reply.setError(PacketError.Condition.forbidden);
        }
        return reply;
    }

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