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