Examples with ServiceUnavailableException org.jivesoftware.openfire.muc.ServiceUnavailableException used on opensource projects

Example 1 with ServiceUnavailableException

use of org.jivesoftware.openfire.muc.ServiceUnavailableException in project Openfire by igniterealtime.

the class LocalMUCRoom method joinRoom.

@Override
public LocalMUCRole joinRoom(String nickname, String password, HistoryRequest historyRequest, LocalMUCUser user, Presence presence) throws UnauthorizedException, UserAlreadyExistsException, RoomLockedException, ForbiddenException, RegistrationRequiredException, ConflictException, ServiceUnavailableException, NotAcceptableException {
    if (((MultiUserChatServiceImpl) mucService).getMUCDelegate() != null) {
        if (!((MultiUserChatServiceImpl) mucService).getMUCDelegate().joiningRoom(this, user.getAddress())) {
            // Delegate said no, reject join.
            throw new UnauthorizedException();
        }
    }
    LocalMUCRole joinRole = null;
    lock.writeLock().lock();
    boolean clientOnlyJoin = false;
    // A "client only join" here is one where the client is already joined, but has re-joined.
    try {
        // If the room has a limit of max user then check if the limit has been reached
        if (!canJoinRoom(user)) {
            throw new ServiceUnavailableException();
        }
        final JID bareJID = user.getAddress().asBareJID();
        boolean isOwner = owners.includes(bareJID);
        // If the room is locked and this user is not an owner raise a RoomLocked exception
        if (isLocked()) {
            if (!isOwner) {
                throw new RoomLockedException();
            }
        }
        // Check if the nickname is already used in the room
        if (occupantsByNickname.containsKey(nickname.toLowerCase())) {
            List<MUCRole> occupants = occupantsByNickname.get(nickname.toLowerCase());
            MUCRole occupant = occupants.size() > 0 ? occupants.get(0) : null;
            if (occupant != null && !occupant.getUserAddress().toBareJID().equals(bareJID.toBareJID())) {
                // Nickname is already used, and not by the same JID
                throw new UserAlreadyExistsException();
            }
            if (occupant.getUserAddress().equals(user.getAddress())) {
                // This user is already an occupant. The client thinks it isn't. (Or else this is a broken gmail).
                clientOnlyJoin = true;
            }
        }
        // Unauthorized exception
        if (isPasswordProtected()) {
            if (password == null || !password.equals(getPassword())) {
                throw new UnauthorizedException();
            }
        }
        // raise a ConflictException
        if (members.containsValue(nickname.toLowerCase())) {
            if (!nickname.toLowerCase().equals(members.get(bareJID))) {
                throw new ConflictException();
            }
        }
        if (isLoginRestrictedToNickname()) {
            String reservedNickname = members.get(bareJID);
            if (reservedNickname != null && !nickname.toLowerCase().equals(reservedNickname)) {
                throw new NotAcceptableException();
            }
        }
        // Set the corresponding role based on the user's affiliation
        MUCRole.Role role;
        MUCRole.Affiliation affiliation;
        if (isOwner) {
            // The user is an owner. Set the role and affiliation accordingly.
            role = MUCRole.Role.moderator;
            affiliation = MUCRole.Affiliation.owner;
        } else if (mucService.isSysadmin(bareJID)) {
            // The user is a system administrator of the MUC service. Treat him as an owner
            // although he won't appear in the list of owners
            role = MUCRole.Role.moderator;
            affiliation = MUCRole.Affiliation.owner;
        } else if (admins.includes(bareJID)) {
            // The user is an admin. Set the role and affiliation accordingly.
            role = MUCRole.Role.moderator;
            affiliation = MUCRole.Affiliation.admin;
        } else // explicit outcast status has higher precedence than member status
        if (outcasts.contains(bareJID)) {
            // The user is an outcast. Raise a "Forbidden" exception.
            throw new ForbiddenException();
        } else if (members.includesKey(bareJID)) {
            // The user is a member. Set the role and affiliation accordingly.
            role = MUCRole.Role.participant;
            affiliation = MUCRole.Affiliation.member;
        } else // this checks if the user is an outcast implicitly (via a group)
        if (outcasts.includes(bareJID)) {
            // The user is an outcast. Raise a "Forbidden" exception.
            throw new ForbiddenException();
        } else {
            // The user has no affiliation (i.e. NONE). Set the role accordingly.
            if (isMembersOnly()) {
                // "Registration Required" exception.
                throw new RegistrationRequiredException();
            }
            role = (isModerated() ? MUCRole.Role.visitor : MUCRole.Role.participant);
            affiliation = MUCRole.Affiliation.none;
        }
        if (!clientOnlyJoin) {
            // Create a new role for this user in this room
            joinRole = new LocalMUCRole(mucService, this, nickname, role, affiliation, user, presence, router);
            // Add the new user as an occupant of this room
            List<MUCRole> occupants = occupantsByNickname.get(nickname.toLowerCase());
            if (occupants == null) {
                occupants = new ArrayList<>();
                occupantsByNickname.put(nickname.toLowerCase(), occupants);
            }
            occupants.add(joinRole);
            // Update the tables of occupants based on the bare and full JID
            List<MUCRole> list = occupantsByBareJID.get(bareJID);
            if (list == null) {
                list = new ArrayList<>();
                occupantsByBareJID.put(bareJID, list);
            }
            list.add(joinRole);
            occupantsByFullJID.put(user.getAddress(), joinRole);
        } else {
            // Grab the existing one.
            joinRole = (LocalMUCRole) occupantsByFullJID.get(user.getAddress());
        }
    } finally {
        lock.writeLock().unlock();
    }
    // Notify other cluster nodes that a new occupant joined the room
    CacheFactory.doClusterTask(new OccupantAddedEvent(this, joinRole));
    // Send presence of existing occupants to new occupant
    sendInitialPresences(joinRole);
    // It is assumed that the room is new based on the fact that it's locked and
    // that it was locked when it was created.
    boolean isRoomNew = isLocked() && creationDate.getTime() == lockedTime;
    try {
        // Send the presence of this new occupant to existing occupants
        Presence joinPresence = joinRole.getPresence().createCopy();
        broadcastPresence(joinPresence, true);
    } catch (Exception e) {
        Log.error(LocaleUtils.getLocalizedString("admin.error"), e);
    }
    // confirmed" message
    if (!isRoomNew && isLocked()) {
        // http://xmpp.org/extensions/xep-0045.html#enter-locked
        Presence presenceItemNotFound = new Presence(Presence.Type.error);
        presenceItemNotFound.setError(PacketError.Condition.item_not_found);
        presenceItemNotFound.setFrom(role.getRoleAddress());
        joinRole.send(presenceItemNotFound);
    }
    if (historyRequest == null) {
        Iterator<Message> history = roomHistory.getMessageHistory();
        while (history.hasNext()) {
            joinRole.send(history.next());
        }
    } else {
        historyRequest.sendHistory(joinRole, roomHistory);
    }
    Message roomSubject = roomHistory.getChangedSubject();
    if (roomSubject != null) {
        joinRole.send(roomSubject);
    }
    if (!clientOnlyJoin) {
        // Update the date when the last occupant left the room
        setEmptyDate(null);
        // Fire event that occupant joined the room
        MUCEventDispatcher.occupantJoined(getRole().getRoleAddress(), user.getAddress(), joinRole.getNickname());
    }
    return joinRole;
}