public void interceptPacket(Packet packet, Session session, boolean incoming, boolean processed)
throws PacketRejectedException {
// We only want packets recieved by the server
if (!processed && incoming && packet instanceof IQ) {
IQ iq = (IQ) packet;
Element childElement = iq.getChildElement();
if (childElement == null) {
return;
}
String namespace = childElement.getNamespaceURI();
String profile = childElement.attributeValue("profile");
// Check that the SI is about file transfer and try creating a file transfer
if (NAMESPACE_SI.equals(namespace) && NAMESPACE_SI_FILETRANSFER.equals(profile)) {
// If this is a set, check the feature offer
if (iq.getType().equals(IQ.Type.set)) {
JID from = iq.getFrom();
JID to = iq.getTo();
FileTransfer transfer = createFileTransfer(from, to, childElement);
try {
if (transfer == null || !acceptIncomingFileTransferRequest(transfer)) {
throw new PacketRejectedException();
}
} catch (FileTransferRejectedException e) {
throw new PacketRejectedException(e);
}
}
}
}
}
/**
* Processes an IQ-register request that is expressing the wish to deregister from a gateway.
*
* @param packet the IQ-register stanza.
*/
private void handleDeregister(final IQ packet) {
final IQ result = IQ.createResultIQ(packet);
if (packet.getChildElement().elements().size() != 1) {
Log.debug(
"Cannot process this stanza - exactly one"
+ " childelement of <remove> expected:"
+ packet.toXML());
final IQ error = IQ.createResultIQ(packet);
error.setError(Condition.bad_request);
parent.sendPacket(error);
return;
}
final JID from = packet.getFrom();
final JID to = packet.getTo();
// Tell the end user the transport went byebye.
final Presence unavailable = new Presence(Presence.Type.unavailable);
unavailable.setTo(from);
unavailable.setFrom(to);
this.parent.sendPacket(unavailable);
try {
deleteRegistration(from);
} catch (UserNotFoundException e) {
Log.debug("Error cleaning up contact list of: " + from);
result.setError(Condition.registration_required);
}
parent.sendPacket(result);
}
/**
* 退出群
*
* @param iq
* @return
*/
private IQ quitGroup(IQ iq) {
String member_jid = iq.getFrom().toBareJID();
JID group = iq.getTo();
IQ reply = IQ.createResultIQ(iq);
long group_id = -1;
LocalGroup localGroup = null;
try {
group_id = Long.parseLong(group.getNode());
localGroup = service.getGroup(group_id);
} catch (Exception e) {
reply.setError(PacketError.Condition.bad_request);
return reply;
}
// 删除群成员
try {
Map<String, LocalGroupRole> members = localGroup.getGroupMembers();
if (members != null && !members.isEmpty()) {
int delete = groupDbManager.deleteGroupMember(group_id, member_jid);
// 有记录被删除,通知群成员
if (delete > 0) {
// 如果群主退出，删除群
if (localGroup.isOwner(member_jid)) groupDbManager.deleteGroupById(group_id);
// 发送消息
sendPacket(members.keySet(), packetUtil.createQuitPresence(member_jid, group_id));
}
}
localGroup.removeMember(member_jid);
} catch (SQLException e) {
reply.setError(PacketError.Condition.internal_server_error);
return reply;
}
return null;
}
public void interceptPacket(Packet packet, Session session, boolean incoming, boolean processed)
throws PacketRejectedException {
if (!processed && packet instanceof IQ && !incoming) {
// Check for the Bookmark Storage element and hand off to the Bookmark engine.
IQ iq = (IQ) packet;
Element childElement = iq.getChildElement();
if (childElement == null || iq.getType() != IQ.Type.result) {
return;
}
String namespace = childElement.getNamespaceURI();
if ("jabber:iq:private".equals(namespace)) {
// In private data, when a user is attempting to retrieve bookmark
// information, there will be a storage:bookmarks namespace.
Element storageElement = childElement.element("storage");
if (storageElement == null) {
return;
}
namespace = storageElement.getNamespaceURI();
if ("storage:bookmarks".equals(namespace)) {
// Append Server defined bookmarks for user.
JID toJID = iq.getTo();
addBookmarks(toJID, storageElement);
}
}
}
}
/**
* 审批入群申请
*
* @param iq
* @return
*/
private IQ processGroupApply(IQ iq) {
IQ reply = IQ.createResultIQ(iq);
// 发送者
String creator = iq.getFrom().toBareJID();
Element query = iq.getChildElement();
// 申请人
String applier = query.elementText("applier");
// 审批结果
String result = query.elementText("result");
if (result == null
|| applier == null
|| (!GroupApply.STATUS_ACCEPT.equals(result) && !GroupApply.STATUS_DENIED.equals(result))) {
reply.setError(PacketError.Condition.bad_request);
return reply;
}
long group_id = -1;
LocalGroup localGroup = null;
try {
group_id = Long.parseLong(iq.getTo().getNode());
localGroup = service.getGroup(group_id);
} catch (Exception e) {
reply.setError(PacketError.Condition.bad_request);
return reply;
}
try {
// 检查是否已经处理过这条请求
GroupApply apply = groupDbManager.getGroupApplyByUserGroupId(group_id, applier);
if (apply == null && !localGroup.isOwner(creator)) {
reply.setError(PacketError.Condition.bad_request);
return reply;
}
// 处理请求
apply.setStatus(result);
groupDbManager.processGroupApply(apply);
// 如果申请人在线，发送消息通知
Message applier_msg =
packetUtil.createGroupApplyResponseMessage(apply, localGroup.getGroup());
boolean sent = sendPacketIfOnline(applier_msg, apply.getApply_user());
// 未发送，保存到数据库
if (!sent) {
GroupSysMessage sysMessage =
new GroupSysMessage(apply.getApply_user(), applier_msg.toXML());
groupDbManager.insertGroupSysMessage(sysMessage);
}
// 如果是同意,发送presence给群成员
if (GroupApply.STATUS_ACCEPT.equals(apply.getStatus())) {
// 发送消息
sendPacket(
localGroup.getGroupMembers().keySet(), packetUtil.createNewMemberPresence(apply));
}
// 处理完成
} catch (SQLException e) {
reply.setError(PacketError.Condition.internal_server_error);
}
return reply;
}
/**
* Handles the IQ packet sent by an owner of the room. Possible actions are:
*
* <ul>
* <li>Return the list of owners
* <li>Return the list of admins
* <li>Change user's affiliation to owner
* <li>Change user's affiliation to admin
* <li>Change user's affiliation to member
* <li>Change user's affiliation to none
* <li>Destroy the room
* <li>Return the room configuration within a dataform
* <li>Update the room configuration based on the sent dataform
* </ul>
*
* @param packet the IQ packet sent by an owner of the room.
* @param role the role of the user that sent the packet.
* @throws ForbiddenException if the user does not have enough permissions (ie. is not an owner).
* @throws ConflictException If the room was going to lose all of its owners.
*/
@SuppressWarnings("unchecked")
public void handleIQ(IQ packet, MUCRole role)
throws ForbiddenException, ConflictException, CannotBeInvitedException {
// Only owners can send packets with the namespace "http://jabber.org/protocol/muc#owner"
if (MUCRole.Affiliation.owner != role.getAffiliation()) {
throw new ForbiddenException();
}
IQ reply = IQ.createResultIQ(packet);
Element element = packet.getChildElement();
// Analyze the action to perform based on the included element
Element formElement = element.element(QName.get("x", "jabber:x:data"));
if (formElement != null) {
handleDataFormElement(role, formElement);
} else {
Element destroyElement = element.element("destroy");
if (destroyElement != null) {
if (((MultiUserChatServiceImpl) room.getMUCService()).getMUCDelegate() != null) {
if (!((MultiUserChatServiceImpl) room.getMUCService())
.getMUCDelegate()
.destroyingRoom(room.getName(), role.getUserAddress())) {
// Delegate said no, reject destroy request.
throw new ForbiddenException();
}
}
JID alternateJID = null;
final String jid = destroyElement.attributeValue("jid");
if (jid != null) {
alternateJID = new JID(jid);
}
room.destroyRoom(alternateJID, destroyElement.elementTextTrim("reason"));
} else {
// If no element was included in the query element then answer the
// configuration form
if (!element.elementIterator().hasNext()) {
refreshConfigurationFormValues();
reply.setChildElement(probeResult.createCopy());
}
// An unknown and possibly incorrect element was included in the query
// element so answer a BAD_REQUEST error
else {
reply.setChildElement(packet.getChildElement().createCopy());
reply.setError(PacketError.Condition.bad_request);
}
}
}
if (reply.getTo() != null) {
// Send a reply only if the sender of the original packet was from a real JID. (i.e. not
// a packet generated locally)
router.route(reply);
}
}
public IQ handleIQ(IQ iq) {
Type type = iq.getType();
String group_id = iq.getTo().getNode();
if (group_id == null) return null;
// 申请入群
if (Type.get == type) return applyUserGroup(iq);
else if (Type.set == type) {
Element element = iq.getChildElement();
Element quit = element.element("quit");
if (quit != null) return quitGroup(iq);
else return processGroupApply(iq);
}
return null;
}
/**
* Creates an error response for a given IQ request.
*
* @param request
* @param message
* @param condition
* @param type
* @return
*/
public static IQ createErrorResponse(
final IQ request, final String message, Condition condition, Type type) {
final IQ result = request.createCopy();
result.setID(request.getID());
result.setFrom(request.getTo());
result.setTo(request.getFrom());
PacketError e = new PacketError(condition, type);
if (message != null) {
e.setText(message);
}
result.setError(e);
return result;
}
/**
* 用户申请入群
*
* @param iq
* @return
*/
private IQ applyUserGroup(IQ iq) {
JID from = iq.getFrom();
JID to = iq.getTo();
long group_id = -1;
// 取群id
try {
group_id = Long.parseLong(to.getNode());
} catch (Exception e) {
return packetUtil.createErrorIq(iq, GroupError.Condition.bad_request);
}
try {
// 申请理由
String reason = iq.getChildElement().elementText("reason");
// 申请人
String member_jid = from.toBareJID();
Group group = groupDbManager.getGroupById(group_id);
// 群不存在
if (group == null) return packetUtil.createErrorIq(iq, GroupError.Condition.group_not_exsist);
// 已经是群成员
if (groupDbManager.isGroupMember(group_id, member_jid))
return packetUtil.createErrorIq(iq, GroupError.Condition.alread_in_group);
// 已经提交了申请
if (groupDbManager.getGroupApplyByUserGroupId(group_id, member_jid) != null)
return packetUtil.createErrorIq(iq, GroupError.Condition.alread_applied);
// 新建入群申请
GroupApply apply = new GroupApply(group_id, member_jid);
groupDbManager.insertGroupApply(apply);
// 生成需要发送给群主的消息
IQ to_admin = packetUtil.createGroupApplyMessage(group, member_jid, reason);
// 插入系统消息
GroupSysMessage sysMessage =
new GroupSysMessage(group_id, member_jid, group.getCreator(), to_admin.toXML());
groupDbManager.insertGroupSysMessage(sysMessage);
// 如果群主在线，发送审核消息
sendPacketIfOnline(to_admin, group.getCreator());
return IQ.createResultIQ(iq);
} catch (SQLException e) {
e.printStackTrace();
return packetUtil.createErrorIq(iq, GroupError.Condition.server_error);
}
}
/**
* Handles all roster queries. There are two major types of queries:
*
* <ul>
* <li>Roster remove - A forced removal of items from a roster. Roster removals are the only
* roster queries allowed to directly affect the roster from another user.
* <li>Roster management - A local user looking up or updating their roster.
* </ul>
*
* @param packet The update packet
* @return The reply or null if no reply
*/
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;
}
}
}
@Override
public void interceptPacket(Packet packet, Session session, boolean incoming, boolean processed)
throws PacketRejectedException {
if (!processed && incoming) {
if (packet instanceof IQ) {
Log.debug(
"Incomping unprocessed package i might be interested in. Package: \n"
+ packet.toString()
+ "\n");
IQ myPacket = (IQ) packet;
if (myPacket.getFrom() == null || myPacket.getTo() == null) {
/*
* If getTo() == null this is maybe a roster update from the
* Client to the Server, check if we should mirror this
* package to external component
*/
if (myPacket.getFrom() != null
&& myPacket.getType().equals(IQ.Type.set)
&& myPacket.getTo() == null) {
if (XpathHelper.findNodesInDocument(
myPacket.getChildElement().getDocument(), "//roster:item")
.size()
> 0) {
_packetProcessor.get("clientToComponentUpdate").process(myPacket);
}
}
return;
}
@SuppressWarnings("unused")
String to = myPacket.getTo().toString();
String from = myPacket.getFrom().toString();
if (myPacket.getType().equals(IQ.Type.get) && from.equals(_mySubdomain)) {
if (XpathHelper.findNodesInDocument(myPacket.getElement().getDocument(), "//roster:*")
.size()
== 1) {
// This Package is a roster request by remote component
_packetProcessor.get("sendRoster").process(packet);
}
} else if (myPacket.getType().equals(IQ.Type.set) && from.equals(_mySubdomain)) {
if (XpathHelper.findNodesInDocument(myPacket.getElement().getDocument(), "//roster:item")
.size()
>= 1) {
// Component sends roster update
_packetProcessor.get("receiveChanges").process(packet);
}
} else if (myPacket.getType().equals(IQ.Type.get)
&& myPacket.toString().contains("http://jabber.org/protocol/disco#info")
&& myPacket.getTo().toString().equals(_mySubdomain)) {
/*
* modify the disco#info for spark clients if enabled in
* admin panel
*/
_packetProcessor.get("sparkIQRegistered").process(packet);
} else if (myPacket.getType().equals(IQ.Type.set)
&& myPacket.getTo().toString().equals(_mySubdomain)) {
System.out.println("war das ein remove an mich????");
_packetProcessor.get("handleCleanUp").process(packet);
}
}
// else if (packet instanceof Presence) {
// if (packet.getFrom().toString().equals(_mySubdomain)
// &&
// !JiveGlobals.getBooleanProperty("plugin.remoteroster.persistent",
// false)) {
// System.out.println("MACH EIN CLEANUP!!!!!!");
// _packetProcessor.get("handleCleanUp").process(packet);
// }
// }
}
}
/**
* Handles a IQ-register 'set' request, which is to be interpreted as a request to create a new
* registration.
*
* @param packet the IQ-register 'set' stanza.
* @throws UnauthorizedException if the user isn't allowed to register.
*/
private void setRegistrationForm(IQ packet) throws UnauthorizedException {
final JID from = packet.getFrom();
final boolean registered;
Collection<Registration> registrations =
RegistrationManager.getInstance().getRegistrations(from, parent.transportType);
if (registrations.iterator().hasNext()) {
registered = true;
} else {
registered = false;
}
if (!registered && !parent.permissionManager.hasAccess(from)) {
// User does not have permission to register with transport.
// We want to allow them to change settings if they are already
// registered.
throw new UnauthorizedException(
LocaleUtils.getLocalizedString("gateway.base.registrationdeniedbyacls", "kraken"));
}
// Parse the input variables
String username = null;
String password = null;
String nickname = null;
try {
if (packet.getChildElement().element("x") != null) {
final DataForm form = new DataForm(packet.getChildElement().element("x"));
final List<FormField> fields = form.getFields();
for (final FormField field : fields) {
final String var = field.getVariable();
if (var.equals("username")) {
username = field.getValues().get(0);
} else if (var.equals("password")) {
password = field.getValues().get(0);
} else if (var.equals("nick")) {
nickname = field.getValues().get(0);
}
}
}
}
// TODO: This shouldn't be done by catching an Exception - check for the
// existence of elements instead. If we insist doing this with an
// exception handler, prevent catching a generic Exception (catch more
// specific subclasses instead).
catch (Exception ex) {
// No with data form apparently
Log.info("Most likely, no dataform was present " + "in the IQ-register request.", ex);
}
// input variables could also exist in the non-extended elements
final Element userEl = packet.getChildElement().element("username");
final Element passEl = packet.getChildElement().element("password");
final Element nickEl = packet.getChildElement().element("nick");
if (userEl != null) {
username = userEl.getTextTrim();
}
if (passEl != null) {
password = passEl.getTextTrim();
}
if (nickEl != null) {
nickname = nickEl.getTextTrim();
}
username = (username == null || username.equals("")) ? null : username;
password = (password == null || password.equals("")) ? null : password;
nickname = (nickname == null || nickname.equals("")) ? null : nickname;
// verify that we've got wat we need.
if (username == null
|| (parent.isPasswordRequired() && password == null)
|| (parent.isNicknameRequired() && nickname == null)) {
// Invalid information from stanza, lets yell.
Log.info(
"Cannot process IQ register request, as it "
+ "fails to provide all data that's required: "
+ packet.toXML());
final IQ result = IQ.createResultIQ(packet);
result.setError(Condition.bad_request);
parent.sendPacket(result);
return;
}
// Check if the client supports our proprietary 'rosterless' mode.
final boolean rosterlessMode;
final Element x = packet.getChildElement().element("x");
if (x != null
&& x.getNamespaceURI() != null
&& x.getNamespaceURI().equals(NameSpace.IQ_GATEWAY_REGISTER)) {
rosterlessMode = true;
Log.info("Registering " + packet.getFrom() + " as " + username + " in rosterless mode.");
} else {
rosterlessMode = false;
Log.info(
"Registering "
+ packet.getFrom()
+ " as "
+ username
+ " (without making use of rosterless mode).");
}
// Here's where the true magic lies: create the registration!
try {
addNewRegistration(from, username, password, nickname, rosterlessMode);
registrations =
RegistrationManager.getInstance().getRegistrations(from, parent.transportType);
Registration registration = registrations.iterator().next();
TransportSession session =
parent.registrationLoggedIn(registration, from, PresenceType.available, "", -1);
session.setRegistrationPacket(packet);
session.detachSession();
parent.getSessionManager().storeSession(from, session);
// final IQ result = IQ.createResultIQ(packet);
// I believe this shouldn't be included. Leaving it around just in
// case.
// Element response =
// DocumentHelper.createElement(QName.get("query", IQ_REGISTER));
// result.setChildElement(response);
// parent.sendPacket(result);
} catch (UserNotFoundException e) {
Log.warn(
"Someone attempted to register with the gateway "
+ "who is not registered with the server: "
+ from);
final IQ eresult = IQ.createResultIQ(packet);
eresult.setError(Condition.forbidden);
parent.sendPacket(eresult);
final Message em = new Message();
em.setType(Message.Type.error);
em.setTo(packet.getFrom());
em.setFrom(packet.getTo());
em.setBody(LocaleUtils.getLocalizedString("gateway.base.registrationdeniednoacct", "kraken"));
parent.sendPacket(em);
} catch (IllegalAccessException e) {
Log.warn(
"Someone who is not a user of this server "
+ "tried to register with the transport: "
+ from);
final IQ eresult = IQ.createResultIQ(packet);
eresult.setError(Condition.forbidden);
parent.sendPacket(eresult);
final Message em = new Message();
em.setType(Message.Type.error);
em.setTo(packet.getFrom());
em.setFrom(packet.getTo());
em.setBody(LocaleUtils.getLocalizedString("gateway.base.registrationdeniedbyhost", "kraken"));
parent.sendPacket(em);
} catch (IllegalArgumentException e) {
Log.warn(
"Someone attempted to register with the " + "gateway with an invalid username: "******"gateway.base.registrationdeniedbadusername", "kraken"));
parent.sendPacket(em);
}
}
@SuppressWarnings("deprecation")
@Override
public IQ handleIQ(IQ packet) throws UnauthorizedException {
final JID sender = packet.getFrom();
final JID recipient = packet.getTo();
// Process the request inside a try/catch so that unhandled exceptions
// (oufofbounds etc...) can trigger a server error and we can send a
// error result packet
try {
// A valid request is an IQ of type set,
if (!packet.getType().equals(IQ.Type.set)) {
IQ result = IQ.createResultIQ(packet);
result.setChildElement(packet.getChildElement().createCopy());
result.setError(PacketError.Condition.bad_request);
return result;
}
// If a recipient is specified, it must be equal to the sender
// bareJID
if (recipient != null && !recipient.toString().equals(sender.toBareJID())) {
IQ result = IQ.createResultIQ(packet);
result.setChildElement(packet.getChildElement().createCopy());
result.setError(PacketError.Condition.not_authorized);
return result;
}
// Only a local user can publish its profile
if (!userManager.isRegisteredUser(sender.getNode())) {
IQ result = IQ.createResultIQ(packet);
result.setChildElement(packet.getChildElement().createCopy());
result.setError(PacketError.Condition.not_authorized);
return result;
}
// A valid submit requets must contain a vcard4 entry
Element request = packet.getChildElement();
Element e_profile = request.element(QName.get(VCard4.VCARD_ELEMENT, VCard4.NAMESPACE));
if (e_profile == null) {
IQ result = IQ.createResultIQ(packet);
result.setChildElement(packet.getChildElement().createCopy());
result.setError(PacketError.Condition.bad_request);
return result;
}
// Parse the profile
VCard4DomReader reader = new PersistentVCard4DomReader();
Profile profile = reader.readProfile(new ElementAdapter(e_profile));
// Commit the profile (this will also trigger the messages)
try {
ProfileManager.getInstance().publishProfile(sender.toBareJID(), profile);
} catch (UserNotFoundException e) {
// We know this cannot happen
}
// Send a success result
// TODO should this contain more, like the ID of the new activities ?
IQ result = IQ.createResultIQ(packet);
return result;
} catch (Exception e) {
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;
}
}
