001/** 002 * 003 * Copyright © 2014-2021 Florian Schmaus 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.jivesoftware.smackx.muc; 018 019import java.lang.ref.WeakReference; 020import java.util.ArrayList; 021import java.util.Collections; 022import java.util.HashMap; 023import java.util.HashSet; 024import java.util.List; 025import java.util.Map; 026import java.util.Set; 027import java.util.WeakHashMap; 028import java.util.concurrent.CopyOnWriteArrayList; 029import java.util.concurrent.CopyOnWriteArraySet; 030import java.util.logging.Level; 031import java.util.logging.Logger; 032 033import org.jivesoftware.smack.ConnectionCreationListener; 034import org.jivesoftware.smack.ConnectionListener; 035import org.jivesoftware.smack.Manager; 036import org.jivesoftware.smack.SmackException.NoResponseException; 037import org.jivesoftware.smack.SmackException.NotConnectedException; 038import org.jivesoftware.smack.StanzaListener; 039import org.jivesoftware.smack.XMPPConnection; 040import org.jivesoftware.smack.XMPPConnectionRegistry; 041import org.jivesoftware.smack.XMPPException.XMPPErrorException; 042import org.jivesoftware.smack.filter.AndFilter; 043import org.jivesoftware.smack.filter.ExtensionElementFilter; 044import org.jivesoftware.smack.filter.MessageTypeFilter; 045import org.jivesoftware.smack.filter.NotFilter; 046import org.jivesoftware.smack.filter.StanzaExtensionFilter; 047import org.jivesoftware.smack.filter.StanzaFilter; 048import org.jivesoftware.smack.filter.StanzaTypeFilter; 049import org.jivesoftware.smack.packet.Message; 050import org.jivesoftware.smack.packet.MessageBuilder; 051import org.jivesoftware.smack.packet.Stanza; 052import org.jivesoftware.smack.util.Async; 053import org.jivesoftware.smack.util.CleaningWeakReferenceMap; 054 055import org.jivesoftware.smackx.disco.AbstractNodeInformationProvider; 056import org.jivesoftware.smackx.disco.ServiceDiscoveryManager; 057import org.jivesoftware.smackx.disco.packet.DiscoverInfo; 058import org.jivesoftware.smackx.disco.packet.DiscoverItems; 059import org.jivesoftware.smackx.muc.MultiUserChatException.MucNotJoinedException; 060import org.jivesoftware.smackx.muc.MultiUserChatException.NotAMucServiceException; 061import org.jivesoftware.smackx.muc.packet.GroupChatInvitation; 062import org.jivesoftware.smackx.muc.packet.MUCInitialPresence; 063import org.jivesoftware.smackx.muc.packet.MUCUser; 064 065import org.jxmpp.jid.DomainBareJid; 066import org.jxmpp.jid.EntityBareJid; 067import org.jxmpp.jid.EntityFullJid; 068import org.jxmpp.jid.EntityJid; 069import org.jxmpp.jid.Jid; 070import org.jxmpp.jid.parts.Resourcepart; 071import org.jxmpp.util.cache.ExpirationCache; 072 073/** 074 * A manager for Multi-User Chat rooms. 075 * <p> 076 * Use {@link #getMultiUserChat(EntityBareJid)} to retrieve an object representing a Multi-User Chat room. 077 * </p> 078 * <p> 079 * <b>Automatic rejoin:</b> The manager supports automatic rejoin of MultiUserChat rooms once the connection got 080 * re-established. This mechanism is disabled by default. To enable it, use {@link #setAutoJoinOnReconnect(boolean)}. 081 * You can set a {@link AutoJoinFailedCallback} via {@link #setAutoJoinFailedCallback(AutoJoinFailedCallback)} to get 082 * notified if this mechanism failed for some reason. Note that as soon as rejoining for a single room failed, no 083 * further attempts will be made for the other rooms. 084 * </p> 085 * 086 * Note: 087 * For inviting other users to a group chat or listening for such invitations, take a look at the 088 * {@link DirectMucInvitationManager} which provides an implementation of XEP-0249: Direct MUC Invitations. 089 * 090 * @see <a href="http://xmpp.org/extensions/xep-0045.html">XEP-0045: Multi-User Chat</a> 091 */ 092public final class MultiUserChatManager extends Manager { 093 private static final String DISCO_NODE = MUCInitialPresence.NAMESPACE + "#rooms"; 094 095 private static final Logger LOGGER = Logger.getLogger(MultiUserChatManager.class.getName()); 096 097 static { 098 XMPPConnectionRegistry.addConnectionCreationListener(new ConnectionCreationListener() { 099 @Override 100 public void connectionCreated(final XMPPConnection connection) { 101 // Set on every established connection that this client supports the Multi-User 102 // Chat protocol. This information will be used when another client tries to 103 // discover whether this client supports MUC or not. 104 ServiceDiscoveryManager.getInstanceFor(connection).addFeature(MUCInitialPresence.NAMESPACE); 105 106 // Set the NodeInformationProvider that will provide information about the 107 // joined rooms whenever a disco request is received 108 final WeakReference<XMPPConnection> weakRefConnection = new WeakReference<XMPPConnection>(connection); 109 ServiceDiscoveryManager.getInstanceFor(connection).setNodeInformationProvider(DISCO_NODE, 110 new AbstractNodeInformationProvider() { 111 @Override 112 public List<DiscoverItems.Item> getNodeItems() { 113 XMPPConnection connection = weakRefConnection.get(); 114 if (connection == null) 115 return Collections.emptyList(); 116 Set<EntityBareJid> joinedRooms = MultiUserChatManager.getInstanceFor(connection).getJoinedRooms(); 117 List<DiscoverItems.Item> answer = new ArrayList<DiscoverItems.Item>(); 118 for (EntityBareJid room : joinedRooms) { 119 answer.add(new DiscoverItems.Item(room)); 120 } 121 return answer; 122 } 123 }); 124 } 125 }); 126 } 127 128 private static final Map<XMPPConnection, MultiUserChatManager> INSTANCES = new WeakHashMap<XMPPConnection, MultiUserChatManager>(); 129 130 /** 131 * Get a instance of a multi user chat manager for the given connection. 132 * 133 * @param connection TODO javadoc me please 134 * @return a multi user chat manager. 135 */ 136 public static synchronized MultiUserChatManager getInstanceFor(XMPPConnection connection) { 137 MultiUserChatManager multiUserChatManager = INSTANCES.get(connection); 138 if (multiUserChatManager == null) { 139 multiUserChatManager = new MultiUserChatManager(connection); 140 INSTANCES.put(connection, multiUserChatManager); 141 } 142 return multiUserChatManager; 143 } 144 145 private static final StanzaFilter INVITATION_FILTER = new AndFilter(StanzaTypeFilter.MESSAGE, new StanzaExtensionFilter(new MUCUser()), 146 new NotFilter(MessageTypeFilter.ERROR)); 147 148 private static final StanzaFilter DIRECT_INVITATION_FILTER = 149 new AndFilter(StanzaTypeFilter.MESSAGE, 150 new ExtensionElementFilter<GroupChatInvitation>(GroupChatInvitation.class), 151 new NotFilter(MessageTypeFilter.ERROR)); 152 153 private static final ExpirationCache<DomainBareJid, DiscoverInfo> KNOWN_MUC_SERVICES = new ExpirationCache<>( 154 100, 1000 * 60 * 60 * 24); 155 156 private static final Set<MucMessageInterceptor> DEFAULT_MESSAGE_INTERCEPTORS = new HashSet<>(); 157 158 private final Set<InvitationListener> invitationsListeners = new CopyOnWriteArraySet<InvitationListener>(); 159 160 /** 161 * The XMPP addresses of currently joined rooms. 162 */ 163 private final Set<EntityBareJid> joinedRooms = new CopyOnWriteArraySet<>(); 164 165 /** 166 * A Map of MUC JIDs to {@link MultiUserChat} instances. We use weak references for the values in order to allow 167 * those instances to get garbage collected. Note that MultiUserChat instances can not get garbage collected while 168 * the user is joined, because then the MUC will have PacketListeners added to the XMPPConnection. 169 */ 170 private final Map<EntityBareJid, WeakReference<MultiUserChat>> multiUserChats = new CleaningWeakReferenceMap<>(); 171 172 private boolean autoJoinOnReconnect; 173 174 private AutoJoinFailedCallback autoJoinFailedCallback; 175 176 private AutoJoinSuccessCallback autoJoinSuccessCallback; 177 178 private final ServiceDiscoveryManager serviceDiscoveryManager; 179 180 private MultiUserChatManager(XMPPConnection connection) { 181 super(connection); 182 serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(connection); 183 // Listens for all messages that include a MUCUser extension and fire the invitation 184 // listeners if the message includes an invitation. 185 StanzaListener invitationPacketListener = new StanzaListener() { 186 @Override 187 public void processStanza(Stanza packet) { 188 final Message message = (Message) packet; 189 // Get the MUCUser extension 190 final MUCUser mucUser = MUCUser.from(message); 191 // Check if the MUCUser extension includes an invitation 192 if (mucUser.getInvite() != null) { 193 EntityBareJid mucJid = message.getFrom().asEntityBareJidIfPossible(); 194 if (mucJid == null) { 195 LOGGER.warning("Invite to non bare JID: '" + message.toXML() + "'"); 196 return; 197 } 198 // Fire event for invitation listeners 199 final MultiUserChat muc = getMultiUserChat(mucJid); 200 final XMPPConnection connection = connection(); 201 final MUCUser.Invite invite = mucUser.getInvite(); 202 final EntityJid from = invite.getFrom(); 203 final String reason = invite.getReason(); 204 final String password = mucUser.getPassword(); 205 for (final InvitationListener listener : invitationsListeners) { 206 listener.invitationReceived(connection, muc, from, reason, password, message, invite); 207 } 208 } 209 } 210 }; 211 connection.addAsyncStanzaListener(invitationPacketListener, INVITATION_FILTER); 212 213 // Listens for all messages that include an XEP-0249 GroupChatInvitation extension and fire the invitation 214 // listeners 215 StanzaListener directInvitationStanzaListener = new StanzaListener() { 216 @Override 217 public void processStanza(Stanza stanza) { 218 final Message message = (Message) stanza; 219 GroupChatInvitation invite = 220 stanza.getExtension(GroupChatInvitation.class); 221 222 // Fire event for invitation listeners 223 final MultiUserChat muc = getMultiUserChat(invite.getRoomAddress()); 224 final XMPPConnection connection = connection(); 225 final EntityJid from = message.getFrom().asEntityJidIfPossible(); 226 if (from == null) { 227 LOGGER.warning("Group Chat Invitation from non entity JID in '" + message + "'"); 228 return; 229 } 230 final String reason = invite.getReason(); 231 final String password = invite.getPassword(); 232 final MUCUser.Invite mucInvite = new MUCUser.Invite(reason, from, connection.getUser().asEntityBareJid()); 233 for (final InvitationListener listener : invitationsListeners) { 234 listener.invitationReceived(connection, muc, from, reason, password, message, mucInvite); 235 } 236 } 237 }; 238 connection.addAsyncStanzaListener(directInvitationStanzaListener, DIRECT_INVITATION_FILTER); 239 240 connection.addConnectionListener(new ConnectionListener() { 241 @Override 242 public void authenticated(XMPPConnection connection, boolean resumed) { 243 if (resumed) return; 244 if (!autoJoinOnReconnect) return; 245 246 final Set<EntityBareJid> mucs = getJoinedRooms(); 247 if (mucs.isEmpty()) return; 248 249 Async.go(new Runnable() { 250 @Override 251 public void run() { 252 final AutoJoinFailedCallback failedCallback = autoJoinFailedCallback; 253 final AutoJoinSuccessCallback successCallback = autoJoinSuccessCallback; 254 for (EntityBareJid mucJid : mucs) { 255 MultiUserChat muc = getMultiUserChat(mucJid); 256 257 if (!muc.isJoined()) return; 258 259 Resourcepart nickname = muc.getNickname(); 260 if (nickname == null) return; 261 262 try { 263 muc.leave(); 264 } catch (NotConnectedException | InterruptedException | MucNotJoinedException 265 | NoResponseException | XMPPErrorException e) { 266 if (failedCallback != null) { 267 failedCallback.autoJoinFailed(muc, e); 268 } else { 269 LOGGER.log(Level.WARNING, "Could not leave room", e); 270 } 271 return; 272 } 273 try { 274 muc.join(nickname); 275 if (successCallback != null) { 276 successCallback.autoJoinSuccess(muc, nickname); 277 } 278 } catch (NotAMucServiceException | NoResponseException | XMPPErrorException 279 | NotConnectedException | InterruptedException e) { 280 if (failedCallback != null) { 281 failedCallback.autoJoinFailed(muc, e); 282 } else { 283 LOGGER.log(Level.WARNING, "Could not leave room", e); 284 } 285 return; 286 } 287 } 288 } 289 290 }); 291 } 292 }); 293 } 294 295 /** 296 * Creates a multi user chat. Note: no information is sent to or received from the server until you attempt to 297 * {@link MultiUserChat#join(org.jxmpp.jid.parts.Resourcepart) join} the chat room. On some server implementations, the room will not be 298 * created until the first person joins it. 299 * <p> 300 * Most XMPP servers use a sub-domain for the chat service (eg chat.example.com for the XMPP server example.com). 301 * You must ensure that the room address you're trying to connect to includes the proper chat sub-domain. 302 * </p> 303 * 304 * @param jid the name of the room in the form "roomName@service", where "service" is the hostname at which the 305 * multi-user chat service is running. Make sure to provide a valid JID. 306 * @return MultiUserChat instance of the room with the given jid. 307 */ 308 public synchronized MultiUserChat getMultiUserChat(EntityBareJid jid) { 309 WeakReference<MultiUserChat> weakRefMultiUserChat = multiUserChats.get(jid); 310 if (weakRefMultiUserChat == null) { 311 return createNewMucAndAddToMap(jid); 312 } 313 MultiUserChat multiUserChat = weakRefMultiUserChat.get(); 314 if (multiUserChat == null) { 315 return createNewMucAndAddToMap(jid); 316 } 317 return multiUserChat; 318 } 319 320 public static boolean addDefaultMessageInterceptor(MucMessageInterceptor messageInterceptor) { 321 synchronized (DEFAULT_MESSAGE_INTERCEPTORS) { 322 return DEFAULT_MESSAGE_INTERCEPTORS.add(messageInterceptor); 323 } 324 } 325 326 public static boolean removeDefaultMessageInterceptor(MucMessageInterceptor messageInterceptor) { 327 synchronized (DEFAULT_MESSAGE_INTERCEPTORS) { 328 return DEFAULT_MESSAGE_INTERCEPTORS.remove(messageInterceptor); 329 } 330 } 331 332 private MultiUserChat createNewMucAndAddToMap(EntityBareJid jid) { 333 MultiUserChat multiUserChat = new MultiUserChat(connection(), jid, this); 334 multiUserChats.put(jid, new WeakReference<MultiUserChat>(multiUserChat)); 335 return multiUserChat; 336 } 337 338 /** 339 * Returns true if the specified user supports the Multi-User Chat protocol. 340 * 341 * @param user the user to check. A fully qualified xmpp ID, e.g. jdoe@example.com. 342 * @return a boolean indicating whether the specified user supports the MUC protocol. 343 * @throws XMPPErrorException if there was an XMPP error returned. 344 * @throws NoResponseException if there was no response from the remote entity. 345 * @throws NotConnectedException if the XMPP connection is not connected. 346 * @throws InterruptedException if the calling thread was interrupted. 347 */ 348 public boolean isServiceEnabled(Jid user) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException { 349 return serviceDiscoveryManager.supportsFeature(user, MUCInitialPresence.NAMESPACE); 350 } 351 352 /** 353 * Returns a Set of the rooms where the user has joined. The Iterator will contain Strings where each String 354 * represents a room (e.g. room@muc.jabber.org). 355 * 356 * Note: In order to get a list of bookmarked (but not necessarily joined) conferences, use 357 * {@link org.jivesoftware.smackx.bookmarks.BookmarkManager#getBookmarkedConferences()}. 358 * 359 * @return a List of the rooms where the user has joined using a given connection. 360 */ 361 public Set<EntityBareJid> getJoinedRooms() { 362 return Collections.unmodifiableSet(joinedRooms); 363 } 364 365 /** 366 * Returns a List of the rooms where the requested user has joined. The Iterator will contain Strings where each 367 * String represents a room (e.g. room@muc.jabber.org). 368 * 369 * @param user the user to check. A fully qualified xmpp ID, e.g. jdoe@example.com. 370 * @return a List of the rooms where the requested user has joined. 371 * @throws XMPPErrorException if there was an XMPP error returned. 372 * @throws NoResponseException if there was no response from the remote entity. 373 * @throws NotConnectedException if the XMPP connection is not connected. 374 * @throws InterruptedException if the calling thread was interrupted. 375 */ 376 public List<EntityBareJid> getJoinedRooms(EntityFullJid user) throws NoResponseException, XMPPErrorException, 377 NotConnectedException, InterruptedException { 378 // Send the disco packet to the user 379 DiscoverItems result = serviceDiscoveryManager.discoverItems(user, DISCO_NODE); 380 List<DiscoverItems.Item> items = result.getItems(); 381 List<EntityBareJid> answer = new ArrayList<>(items.size()); 382 // Collect the entityID for each returned item 383 for (DiscoverItems.Item item : items) { 384 EntityBareJid muc = item.getEntityID().asEntityBareJidIfPossible(); 385 if (muc == null) { 386 LOGGER.warning("Not a bare JID: " + item.getEntityID()); 387 continue; 388 } 389 answer.add(muc); 390 } 391 return answer; 392 } 393 394 /** 395 * Returns the discovered information of a given room without actually having to join the room. The server will 396 * provide information only for rooms that are public. 397 * 398 * @param room the name of the room in the form "roomName@service" of which we want to discover its information. 399 * @return the discovered information of a given room without actually having to join the room. 400 * @throws XMPPErrorException if there was an XMPP error returned. 401 * @throws NoResponseException if there was no response from the remote entity. 402 * @throws NotConnectedException if the XMPP connection is not connected. 403 * @throws InterruptedException if the calling thread was interrupted. 404 */ 405 public RoomInfo getRoomInfo(EntityBareJid room) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException { 406 DiscoverInfo info = serviceDiscoveryManager.discoverInfo(room); 407 return new RoomInfo(info); 408 } 409 410 /** 411 * Returns a collection with the XMPP addresses of the Multi-User Chat services. 412 * 413 * @return a collection with the XMPP addresses of the Multi-User Chat services. 414 * @throws XMPPErrorException if there was an XMPP error returned. 415 * @throws NoResponseException if there was no response from the remote entity. 416 * @throws NotConnectedException if the XMPP connection is not connected. 417 * @throws InterruptedException if the calling thread was interrupted. 418 */ 419 public List<DomainBareJid> getMucServiceDomains() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException { 420 return serviceDiscoveryManager.findServices(MUCInitialPresence.NAMESPACE, false, false); 421 } 422 423 /** 424 * Returns a collection with the XMPP addresses of the Multi-User Chat services. 425 * 426 * @return a collection with the XMPP addresses of the Multi-User Chat services. 427 * @throws XMPPErrorException if there was an XMPP error returned. 428 * @throws NoResponseException if there was no response from the remote entity. 429 * @throws NotConnectedException if the XMPP connection is not connected. 430 * @throws InterruptedException if the calling thread was interrupted. 431 * @deprecated use {@link #getMucServiceDomains()} instead. 432 */ 433 // TODO: Remove in Smack 4.5 434 @Deprecated 435 public List<DomainBareJid> getXMPPServiceDomains() throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException { 436 return getMucServiceDomains(); 437 } 438 439 /** 440 * Check if the provided domain bare JID provides a MUC service. 441 * 442 * @param domainBareJid the domain bare JID to check. 443 * @return <code>true</code> if the provided JID provides a MUC service, <code>false</code> otherwise. 444 * @throws NoResponseException if there was no response from the remote entity. 445 * @throws XMPPErrorException if there was an XMPP error returned. 446 * @throws NotConnectedException if the XMPP connection is not connected. 447 * @throws InterruptedException if the calling thread was interrupted. 448 * @see <a href="http://xmpp.org/extensions/xep-0045.html#disco-service-features">XEP-45 § 6.2 Discovering the Features Supported by a MUC Service</a> 449 * @since 4.2 450 */ 451 public boolean providesMucService(DomainBareJid domainBareJid) throws NoResponseException, 452 XMPPErrorException, NotConnectedException, InterruptedException { 453 return getMucServiceDiscoInfo(domainBareJid) != null; 454 } 455 456 DiscoverInfo getMucServiceDiscoInfo(DomainBareJid mucServiceAddress) 457 throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException { 458 DiscoverInfo discoInfo = KNOWN_MUC_SERVICES.get(mucServiceAddress); 459 if (discoInfo != null) { 460 return discoInfo; 461 } 462 463 discoInfo = serviceDiscoveryManager.discoverInfo(mucServiceAddress); 464 if (!discoInfo.containsFeature(MUCInitialPresence.NAMESPACE)) { 465 return null; 466 } 467 468 KNOWN_MUC_SERVICES.put(mucServiceAddress, discoInfo); 469 return discoInfo; 470 } 471 472 /** 473 * Returns a Map of HostedRooms where each HostedRoom has the XMPP address of the room and the room's name. 474 * Once discovered the rooms hosted by a chat service it is possible to discover more detailed room information or 475 * join the room. 476 * 477 * @param serviceName the service that is hosting the rooms to discover. 478 * @return a map from the room's address to its HostedRoom information. 479 * @throws XMPPErrorException if there was an XMPP error returned. 480 * @throws NoResponseException if there was no response from the remote entity. 481 * @throws NotConnectedException if the XMPP connection is not connected. 482 * @throws InterruptedException if the calling thread was interrupted. 483 * @throws NotAMucServiceException if the entity is not a MUC serivce. 484 * @since 4.3.1 485 */ 486 public Map<EntityBareJid, HostedRoom> getRoomsHostedBy(DomainBareJid serviceName) throws NoResponseException, XMPPErrorException, 487 NotConnectedException, InterruptedException, NotAMucServiceException { 488 if (!providesMucService(serviceName)) { 489 throw new NotAMucServiceException(serviceName); 490 } 491 DiscoverItems discoverItems = serviceDiscoveryManager.discoverItems(serviceName); 492 List<DiscoverItems.Item> items = discoverItems.getItems(); 493 494 Map<EntityBareJid, HostedRoom> answer = new HashMap<>(items.size()); 495 for (DiscoverItems.Item item : items) { 496 HostedRoom hostedRoom = new HostedRoom(item); 497 HostedRoom previousRoom = answer.put(hostedRoom.getJid(), hostedRoom); 498 assert previousRoom == null; 499 } 500 501 return answer; 502 } 503 504 /** 505 * Informs the sender of an invitation that the invitee declines the invitation. The rejection will be sent to the 506 * room which in turn will forward the rejection to the inviter. 507 * 508 * @param room the room that sent the original invitation. 509 * @param inviter the inviter of the declined invitation. 510 * @param reason the reason why the invitee is declining the invitation. 511 * @throws NotConnectedException if the XMPP connection is not connected. 512 * @throws InterruptedException if the calling thread was interrupted. 513 */ 514 public void decline(EntityBareJid room, EntityBareJid inviter, String reason) throws NotConnectedException, InterruptedException { 515 XMPPConnection connection = connection(); 516 517 MessageBuilder messageBuilder = connection.getStanzaFactory().buildMessageStanza().to(room); 518 519 // Create the MUCUser packet that will include the rejection 520 MUCUser mucUser = new MUCUser(); 521 MUCUser.Decline decline = new MUCUser.Decline(reason, inviter); 522 mucUser.setDecline(decline); 523 // Add the MUCUser packet that includes the rejection 524 messageBuilder.addExtension(mucUser); 525 526 connection.sendStanza(messageBuilder.build()); 527 } 528 529 /** 530 * Adds a listener to invitation notifications. The listener will be fired anytime an invitation is received. 531 * 532 * @param listener an invitation listener. 533 */ 534 public void addInvitationListener(InvitationListener listener) { 535 invitationsListeners.add(listener); 536 } 537 538 /** 539 * Removes a listener to invitation notifications. The listener will be fired anytime an invitation is received. 540 * 541 * @param listener an invitation listener. 542 */ 543 public void removeInvitationListener(InvitationListener listener) { 544 invitationsListeners.remove(listener); 545 } 546 547 /** 548 * If automatic join on reconnect is enabled, then the manager will try to auto join MUC rooms after the connection 549 * got re-established. 550 * 551 * @param autoJoin <code>true</code> to enable, <code>false</code> to disable. 552 */ 553 public void setAutoJoinOnReconnect(boolean autoJoin) { 554 autoJoinOnReconnect = autoJoin; 555 } 556 557 /** 558 * Set a callback invoked by this manager when automatic join on reconnect failed. If failedCallback is not 559 * <code>null</code>, then automatic rejoin get also enabled. 560 * 561 * @param failedCallback the callback. 562 */ 563 public void setAutoJoinFailedCallback(AutoJoinFailedCallback failedCallback) { 564 autoJoinFailedCallback = failedCallback; 565 if (failedCallback != null) { 566 setAutoJoinOnReconnect(true); 567 } 568 } 569 570 /** 571 * Set a callback invoked by this manager when automatic join on reconnect success. 572 * If successCallback is not <code>null</code>, automatic rejoin will also 573 * be enabled. 574 * 575 * @param successCallback the callback 576 */ 577 public void setAutoJoinSuccessCallback(AutoJoinSuccessCallback successCallback) { 578 autoJoinSuccessCallback = successCallback; 579 if (successCallback != null) { 580 setAutoJoinOnReconnect(true); 581 } 582 } 583 584 585 void addJoinedRoom(EntityBareJid room) { 586 joinedRooms.add(room); 587 } 588 589 void removeJoinedRoom(EntityBareJid room) { 590 joinedRooms.remove(room); 591 } 592 593 static CopyOnWriteArrayList<MucMessageInterceptor> getMessageInterceptors() { 594 synchronized (DEFAULT_MESSAGE_INTERCEPTORS) { 595 return new CopyOnWriteArrayList<>(DEFAULT_MESSAGE_INTERCEPTORS); 596 } 597 } 598}