nmode's Git Repositories - signal-cli/blob - lib/src/main/java/org/asamk/signal/manager/helper/IncomingMessageHandler.java

   1 package org.asamk.signal.manager.helper;
   2
   3 import org.asamk.signal.manager.Manager;
   4 import org.asamk.signal.manager.SignalDependencies;
   5 import org.asamk.signal.manager.TrustLevel;
   6 import org.asamk.signal.manager.UntrustedIdentityException;
   7 import org.asamk.signal.manager.actions.HandleAction;
   8 import org.asamk.signal.manager.actions.RefreshPreKeysAction;
   9 import org.asamk.signal.manager.actions.RenewSessionAction;
  10 import org.asamk.signal.manager.actions.RetrieveProfileAction;
  11 import org.asamk.signal.manager.actions.RetrieveStorageDataAction;
  12 import org.asamk.signal.manager.actions.SendGroupInfoAction;
  13 import org.asamk.signal.manager.actions.SendGroupInfoRequestAction;
  14 import org.asamk.signal.manager.actions.SendReceiptAction;
  15 import org.asamk.signal.manager.actions.SendRetryMessageRequestAction;
  16 import org.asamk.signal.manager.actions.SendSyncBlockedListAction;
  17 import org.asamk.signal.manager.actions.SendSyncConfigurationAction;
  18 import org.asamk.signal.manager.actions.SendSyncContactsAction;
  19 import org.asamk.signal.manager.actions.SendSyncGroupsAction;
  20 import org.asamk.signal.manager.actions.SendSyncKeysAction;
  21 import org.asamk.signal.manager.api.MessageEnvelope;
  22 import org.asamk.signal.manager.api.Pair;
  23 import org.asamk.signal.manager.groups.GroupId;
  24 import org.asamk.signal.manager.groups.GroupNotFoundException;
  25 import org.asamk.signal.manager.groups.GroupUtils;
  26 import org.asamk.signal.manager.jobs.RetrieveStickerPackJob;
  27 import org.asamk.signal.manager.storage.SignalAccount;
  28 import org.asamk.signal.manager.storage.groups.GroupInfoV1;
  29 import org.asamk.signal.manager.storage.recipients.Profile;
  30 import org.asamk.signal.manager.storage.recipients.RecipientId;
  31 import org.asamk.signal.manager.storage.stickers.Sticker;
  32 import org.asamk.signal.manager.storage.stickers.StickerPackId;
  33 import org.signal.libsignal.metadata.ProtocolInvalidKeyException;
  34 import org.signal.libsignal.metadata.ProtocolInvalidKeyIdException;
  35 import org.signal.libsignal.metadata.ProtocolInvalidMessageException;
  36 import org.signal.libsignal.metadata.ProtocolNoSessionException;
  37 import org.signal.libsignal.metadata.ProtocolUntrustedIdentityException;
  38 import org.signal.libsignal.metadata.SelfSendException;
  39 import org.signal.zkgroup.InvalidInputException;
  40 import org.signal.zkgroup.profiles.ProfileKey;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43 import org.whispersystems.libsignal.SignalProtocolAddress;
  44 import org.whispersystems.signalservice.api.messages.SignalServiceContent;
  45 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  46 import org.whispersystems.signalservice.api.messages.SignalServiceEnvelope;
  47 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
  48 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  49 import org.whispersystems.signalservice.api.messages.multidevice.StickerPackOperationMessage;
  50 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  51
  52 import java.util.ArrayList;
  53 import java.util.List;
  54 import java.util.stream.Collectors;
  55
  56 public final class IncomingMessageHandler {
  57
  58     private final static Logger logger = LoggerFactory.getLogger(IncomingMessageHandler.class);
  59
  60     private final SignalAccount account;
  61     private final SignalDependencies dependencies;
  62     private final Context context;
  63
  64     public IncomingMessageHandler(final Context context) {
  65         this.account = context.getAccount();
  66         this.dependencies = context.getDependencies();
  67         this.context = context;
  68     }
  69
  70     public Pair<List<HandleAction>, Exception> handleRetryEnvelope(
  71             final SignalServiceEnvelope envelope,
  72             final boolean ignoreAttachments,
  73             final Manager.ReceiveMessageHandler handler
  74     ) {
  75         final List<HandleAction> actions = new ArrayList<>();
  76         if (envelope.isPreKeySignalMessage()) {
  77             actions.add(RefreshPreKeysAction.create());
  78         }
  79
  80         SignalServiceContent content = null;
  81         if (!envelope.isReceipt()) {
  82             account.getIdentityKeyStore().setRetryingDecryption(true);
  83             try {
  84                 content = dependencies.getCipher().decrypt(envelope);
  85             } catch (ProtocolUntrustedIdentityException e) {
  86                 final var recipientId = account.getRecipientStore().resolveRecipient(e.getSender());
  87                 final var exception = new UntrustedIdentityException(account.getRecipientStore()
  88                         .resolveRecipientAddress(recipientId), e.getSenderDevice());
  89                 return new Pair<>(List.of(), exception);
  90             } catch (Exception e) {
  91                 return new Pair<>(List.of(), e);
  92             } finally {
  93                 account.getIdentityKeyStore().setRetryingDecryption(false);
  94             }
  95         }
  96         actions.addAll(checkAndHandleMessage(envelope, content, ignoreAttachments, handler, null));
  97         return new Pair<>(actions, null);
  98     }
  99
 100     public Pair<List<HandleAction>, Exception> handleEnvelope(
 101             final SignalServiceEnvelope envelope,
 102             final boolean ignoreAttachments,
 103             final Manager.ReceiveMessageHandler handler
 104     ) {
 105         final var actions = new ArrayList<HandleAction>();
 106         if (envelope.hasSourceUuid()) {
 107             // Store uuid if we don't have it already
 108             // address/uuid in envelope is sent by server
 109             account.getRecipientStore().resolveRecipientTrusted(envelope.getSourceAddress());
 110         }
 111         SignalServiceContent content = null;
 112         Exception exception = null;
 113         if (!envelope.isReceipt()) {
 114             try {
 115                 content = dependencies.getCipher().decrypt(envelope);
 116             } catch (ProtocolUntrustedIdentityException e) {
 117                 final var recipientId = account.getRecipientStore().resolveRecipient(e.getSender());
 118                 actions.add(new RetrieveProfileAction(recipientId));
 119                 exception = new UntrustedIdentityException(account.getRecipientStore()
 120                         .resolveRecipientAddress(recipientId), e.getSenderDevice());
 121             } catch (ProtocolInvalidKeyIdException | ProtocolInvalidKeyException | ProtocolNoSessionException | ProtocolInvalidMessageException e) {
 122                 final var sender = account.getRecipientStore().resolveRecipient(e.getSender());
 123                 final var senderProfile = context.getProfileHelper().getRecipientProfile(sender);
 124                 final var selfProfile = context.getProfileHelper().getRecipientProfile(account.getSelfRecipientId());
 125                 if (e.getSenderDevice() != account.getDeviceId()
 126                         && senderProfile != null
 127                         && senderProfile.getCapabilities().contains(Profile.Capability.senderKey)
 128                         && selfProfile != null
 129                         && selfProfile.getCapabilities().contains(Profile.Capability.senderKey)) {
 130                     logger.debug("Received invalid message, requesting message resend.");
 131                     actions.add(new SendRetryMessageRequestAction(sender, e, envelope));
 132                 } else {
 133                     logger.debug("Received invalid message, queuing renew session action.");
 134                     actions.add(new RenewSessionAction(sender));
 135                 }
 136                 exception = e;
 137             } catch (SelfSendException e) {
 138                 logger.debug("Dropping unidentified message from self.");
 139                 return new Pair<>(List.of(), null);
 140             } catch (Exception e) {
 141                 exception = e;
 142             }
 143         }
 144
 145         actions.addAll(checkAndHandleMessage(envelope, content, ignoreAttachments, handler, exception));
 146         return new Pair<>(actions, exception);
 147     }
 148
 149     private List<HandleAction> checkAndHandleMessage(
 150             final SignalServiceEnvelope envelope,
 151             final SignalServiceContent content,
 152             final boolean ignoreAttachments,
 153             final Manager.ReceiveMessageHandler handler,
 154             final Exception exception
 155     ) {
 156         if (!envelope.hasSourceUuid() && content != null) {
 157             // Store uuid if we don't have it already
 158             // address/uuid is validated by unidentified sender certificate
 159             account.getRecipientStore().resolveRecipientTrusted(content.getSender());
 160         }
 161         if (isMessageBlocked(envelope, content)) {
 162             logger.info("Ignoring a message from blocked user/group: {}", envelope.getTimestamp());
 163             return List.of();
 164         } else if (isNotAllowedToSendToGroup(envelope, content)) {
 165             logger.info("Ignoring a group message from an unauthorized sender (no member or admin): {} {}",
 166                     (envelope.hasSourceUuid() ? envelope.getSourceAddress() : content.getSender()).getIdentifier(),
 167                     envelope.getTimestamp());
 168             return List.of();
 169         } else {
 170             List<HandleAction> actions;
 171             if (content != null) {
 172                 actions = handleMessage(envelope, content, ignoreAttachments);
 173             } else {
 174                 actions = List.of();
 175             }
 176             handler.handleMessage(MessageEnvelope.from(envelope,
 177                     content,
 178                     account.getRecipientStore(),
 179                     account.getRecipientStore()::resolveRecipientAddress,
 180                     context.getAttachmentHelper()::getAttachmentFile), exception);
 181             return actions;
 182         }
 183     }
 184
 185     public List<HandleAction> handleMessage(
 186             SignalServiceEnvelope envelope, SignalServiceContent content, boolean ignoreAttachments
 187     ) {
 188         var actions = new ArrayList<HandleAction>();
 189         final RecipientId sender;
 190         final int senderDeviceId;
 191         if (!envelope.isUnidentifiedSender() && envelope.hasSourceUuid()) {
 192             sender = context.getRecipientHelper().resolveRecipient(envelope.getSourceAddress());
 193             senderDeviceId = envelope.getSourceDevice();
 194         } else {
 195             sender = context.getRecipientHelper().resolveRecipient(content.getSender());
 196             senderDeviceId = content.getSenderDevice();
 197         }
 198
 199         if (content.getSenderKeyDistributionMessage().isPresent()) {
 200             final var message = content.getSenderKeyDistributionMessage().get();
 201             final var protocolAddress = new SignalProtocolAddress(context.getRecipientHelper()
 202                     .resolveSignalServiceAddress(sender)
 203                     .getIdentifier(), senderDeviceId);
 204             logger.debug("Received a sender key distribution message for distributionId {} from {}",
 205                     message.getDistributionId(),
 206                     protocolAddress);
 207             dependencies.getMessageSender().processSenderKeyDistributionMessage(protocolAddress, message);
 208         }
 209
 210         if (content.getDecryptionErrorMessage().isPresent()) {
 211             var message = content.getDecryptionErrorMessage().get();
 212             logger.debug("Received a decryption error message (resend request for {})", message.getTimestamp());
 213             if (message.getRatchetKey().isPresent()) {
 214                 if (message.getDeviceId() == account.getDeviceId() && account.getSessionStore()
 215                         .isCurrentRatchetKey(sender, senderDeviceId, message.getRatchetKey().get())) {
 216                     logger.debug("Renewing the session with sender");
 217                     actions.add(new RenewSessionAction(sender));
 218                 }
 219             } else {
 220                 logger.debug("Reset shared sender keys with this recipient");
 221                 account.getSenderKeyStore().deleteSharedWith(sender);
 222             }
 223         }
 224
 225         if (content.getDataMessage().isPresent()) {
 226             var message = content.getDataMessage().get();
 227
 228             if (content.isNeedsReceipt()) {
 229                 actions.add(new SendReceiptAction(sender, message.getTimestamp()));
 230             }
 231
 232             actions.addAll(handleSignalServiceDataMessage(message,
 233                     false,
 234                     sender,
 235                     account.getSelfRecipientId(),
 236                     ignoreAttachments));
 237         }
 238
 239         if (content.getSyncMessage().isPresent()) {
 240             var syncMessage = content.getSyncMessage().get();
 241             actions.addAll(handleSyncMessage(syncMessage, sender, ignoreAttachments));
 242         }
 243
 244         return actions;
 245     }
 246
 247     private List<HandleAction> handleSyncMessage(
 248             final SignalServiceSyncMessage syncMessage, final RecipientId sender, final boolean ignoreAttachments
 249     ) {
 250         var actions = new ArrayList<HandleAction>();
 251         account.setMultiDevice(true);
 252         if (syncMessage.getSent().isPresent()) {
 253             var message = syncMessage.getSent().get();
 254             final var destination = message.getDestination().orNull();
 255             actions.addAll(handleSignalServiceDataMessage(message.getMessage(),
 256                     true,
 257                     sender,
 258                     destination == null ? null : context.getRecipientHelper().resolveRecipient(destination),
 259                     ignoreAttachments));
 260         }
 261         if (syncMessage.getRequest().isPresent() && account.isMasterDevice()) {
 262             var rm = syncMessage.getRequest().get();
 263             if (rm.isContactsRequest()) {
 264                 actions.add(SendSyncContactsAction.create());
 265             }
 266             if (rm.isGroupsRequest()) {
 267                 actions.add(SendSyncGroupsAction.create());
 268             }
 269             if (rm.isBlockedListRequest()) {
 270                 actions.add(SendSyncBlockedListAction.create());
 271             }
 272             if (rm.isKeysRequest()) {
 273                 actions.add(SendSyncKeysAction.create());
 274             }
 275             if (rm.isConfigurationRequest()) {
 276                 actions.add(SendSyncConfigurationAction.create());
 277             }
 278         }
 279         if (syncMessage.getGroups().isPresent()) {
 280             logger.warn("Received a group v1 sync message, that can't be handled anymore, ignoring.");
 281         }
 282         if (syncMessage.getBlockedList().isPresent()) {
 283             final var blockedListMessage = syncMessage.getBlockedList().get();
 284             for (var address : blockedListMessage.getAddresses()) {
 285                 context.getContactHelper()
 286                         .setContactBlocked(context.getRecipientHelper().resolveRecipient(address), true);
 287             }
 288             for (var groupId : blockedListMessage.getGroupIds()
 289                     .stream()
 290                     .map(GroupId::unknownVersion)
 291                     .collect(Collectors.toSet())) {
 292                 try {
 293                     context.getGroupHelper().setGroupBlocked(groupId, true);
 294                 } catch (GroupNotFoundException e) {
 295                     logger.warn("BlockedListMessage contained groupID that was not found in GroupStore: {}",
 296                             groupId.toBase64());
 297                 }
 298             }
 299         }
 300         if (syncMessage.getContacts().isPresent()) {
 301             try {
 302                 final var contactsMessage = syncMessage.getContacts().get();
 303                 context.getAttachmentHelper()
 304                         .retrieveAttachment(contactsMessage.getContactsStream(),
 305                                 context.getSyncHelper()::handleSyncDeviceContacts);
 306             } catch (Exception e) {
 307                 logger.warn("Failed to handle received sync contacts, ignoring: {}", e.getMessage());
 308             }
 309         }
 310         if (syncMessage.getVerified().isPresent()) {
 311             final var verifiedMessage = syncMessage.getVerified().get();
 312             account.getIdentityKeyStore()
 313                     .setIdentityTrustLevel(account.getRecipientStore()
 314                                     .resolveRecipientTrusted(verifiedMessage.getDestination()),
 315                             verifiedMessage.getIdentityKey(),
 316                             TrustLevel.fromVerifiedState(verifiedMessage.getVerified()));
 317         }
 318         if (syncMessage.getStickerPackOperations().isPresent()) {
 319             final var stickerPackOperationMessages = syncMessage.getStickerPackOperations().get();
 320             for (var m : stickerPackOperationMessages) {
 321                 if (!m.getPackId().isPresent()) {
 322                     continue;
 323                 }
 324                 final var stickerPackId = StickerPackId.deserialize(m.getPackId().get());
 325                 final var installed = !m.getType().isPresent()
 326                         || m.getType().get() == StickerPackOperationMessage.Type.INSTALL;
 327
 328                 var sticker = account.getStickerStore().getSticker(stickerPackId);
 329                 if (m.getPackKey().isPresent()) {
 330                     if (sticker == null) {
 331                         sticker = new Sticker(stickerPackId, m.getPackKey().get());
 332                     }
 333                     if (installed) {
 334                         context.getJobExecutor()
 335                                 .enqueueJob(new RetrieveStickerPackJob(stickerPackId, m.getPackKey().get()));
 336                     }
 337                 }
 338
 339                 if (sticker != null) {
 340                     sticker.setInstalled(installed);
 341                     account.getStickerStore().updateSticker(sticker);
 342                 }
 343             }
 344         }
 345         if (syncMessage.getFetchType().isPresent()) {
 346             switch (syncMessage.getFetchType().get()) {
 347                 case LOCAL_PROFILE:
 348                     actions.add(new RetrieveProfileAction(account.getSelfRecipientId()));
 349                 case STORAGE_MANIFEST:
 350                     actions.add(RetrieveStorageDataAction.create());
 351             }
 352         }
 353         if (syncMessage.getKeys().isPresent()) {
 354             final var keysMessage = syncMessage.getKeys().get();
 355             if (keysMessage.getStorageService().isPresent()) {
 356                 final var storageKey = keysMessage.getStorageService().get();
 357                 account.setStorageKey(storageKey);
 358                 actions.add(RetrieveStorageDataAction.create());
 359             }
 360         }
 361         if (syncMessage.getConfiguration().isPresent()) {
 362             final var configurationMessage = syncMessage.getConfiguration().get();
 363             final var configurationStore = account.getConfigurationStore();
 364             if (configurationMessage.getReadReceipts().isPresent()) {
 365                 configurationStore.setReadReceipts(configurationMessage.getReadReceipts().get());
 366             }
 367             if (configurationMessage.getLinkPreviews().isPresent()) {
 368                 configurationStore.setLinkPreviews(configurationMessage.getLinkPreviews().get());
 369             }
 370             if (configurationMessage.getTypingIndicators().isPresent()) {
 371                 configurationStore.setTypingIndicators(configurationMessage.getTypingIndicators().get());
 372             }
 373             if (configurationMessage.getUnidentifiedDeliveryIndicators().isPresent()) {
 374                 configurationStore.setUnidentifiedDeliveryIndicators(configurationMessage.getUnidentifiedDeliveryIndicators()
 375                         .get());
 376             }
 377         }
 378         return actions;
 379     }
 380
 381     private boolean isMessageBlocked(SignalServiceEnvelope envelope, SignalServiceContent content) {
 382         SignalServiceAddress source;
 383         if (!envelope.isUnidentifiedSender() && envelope.hasSourceUuid()) {
 384             source = envelope.getSourceAddress();
 385         } else if (content != null) {
 386             source = content.getSender();
 387         } else {
 388             return false;
 389         }
 390         final var recipientId = context.getRecipientHelper().resolveRecipient(source);
 391         if (context.getContactHelper().isContactBlocked(recipientId)) {
 392             return true;
 393         }
 394
 395         if (content != null && content.getDataMessage().isPresent()) {
 396             var message = content.getDataMessage().get();
 397             if (message.getGroupContext().isPresent()) {
 398                 var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
 399                 return context.getGroupHelper().isGroupBlocked(groupId);
 400             }
 401         }
 402
 403         return false;
 404     }
 405
 406     private boolean isNotAllowedToSendToGroup(SignalServiceEnvelope envelope, SignalServiceContent content) {
 407         SignalServiceAddress source;
 408         if (!envelope.isUnidentifiedSender() && envelope.hasSourceUuid()) {
 409             source = envelope.getSourceAddress();
 410         } else if (content != null) {
 411             source = content.getSender();
 412         } else {
 413             return false;
 414         }
 415
 416         if (content == null || !content.getDataMessage().isPresent()) {
 417             return false;
 418         }
 419
 420         var message = content.getDataMessage().get();
 421         if (!message.getGroupContext().isPresent()) {
 422             return false;
 423         }
 424
 425         if (message.getGroupContext().get().getGroupV1().isPresent()) {
 426             var groupInfo = message.getGroupContext().get().getGroupV1().get();
 427             if (groupInfo.getType() == SignalServiceGroup.Type.QUIT) {
 428                 return false;
 429             }
 430         }
 431
 432         var groupId = GroupUtils.getGroupId(message.getGroupContext().get());
 433         var group = context.getGroupHelper().getGroup(groupId);
 434         if (group == null) {
 435             return false;
 436         }
 437
 438         final var recipientId = context.getRecipientHelper().resolveRecipient(source);
 439         if (!group.isMember(recipientId) && !(group.isPendingMember(recipientId) && message.isGroupV2Update())) {
 440             return true;
 441         }
 442
 443         if (group.isAnnouncementGroup() && !group.isAdmin(recipientId)) {
 444             return message.getBody().isPresent()
 445                     || message.getAttachments().isPresent()
 446                     || message.getQuote()
 447                     .isPresent()
 448                     || message.getPreviews().isPresent()
 449                     || message.getMentions().isPresent()
 450                     || message.getSticker().isPresent();
 451         }
 452         return false;
 453     }
 454
 455     private List<HandleAction> handleSignalServiceDataMessage(
 456             SignalServiceDataMessage message,
 457             boolean isSync,
 458             RecipientId source,
 459             RecipientId destination,
 460             boolean ignoreAttachments
 461     ) {
 462         var actions = new ArrayList<HandleAction>();
 463         if (message.getGroupContext().isPresent()) {
 464             if (message.getGroupContext().get().getGroupV1().isPresent()) {
 465                 var groupInfo = message.getGroupContext().get().getGroupV1().get();
 466                 var groupId = GroupId.v1(groupInfo.getGroupId());
 467                 var group = context.getGroupHelper().getGroup(groupId);
 468                 if (group == null || group instanceof GroupInfoV1) {
 469                     var groupV1 = (GroupInfoV1) group;
 470                     switch (groupInfo.getType()) {
 471                         case UPDATE: {
 472                             if (groupV1 == null) {
 473                                 groupV1 = new GroupInfoV1(groupId);
 474                             }
 475
 476                             if (groupInfo.getAvatar().isPresent()) {
 477                                 var avatar = groupInfo.getAvatar().get();
 478                                 context.getGroupHelper().downloadGroupAvatar(groupV1.getGroupId(), avatar);
 479                             }
 480
 481                             if (groupInfo.getName().isPresent()) {
 482                                 groupV1.name = groupInfo.getName().get();
 483                             }
 484
 485                             if (groupInfo.getMembers().isPresent()) {
 486                                 groupV1.addMembers(groupInfo.getMembers()
 487                                         .get()
 488                                         .stream()
 489                                         .map(context.getRecipientHelper()::resolveRecipient)
 490                                         .collect(Collectors.toSet()));
 491                             }
 492
 493                             account.getGroupStore().updateGroup(groupV1);
 494                             break;
 495                         }
 496                         case DELIVER:
 497                             if (groupV1 == null && !isSync) {
 498                                 actions.add(new SendGroupInfoRequestAction(source, groupId));
 499                             }
 500                             break;
 501                         case QUIT: {
 502                             if (groupV1 != null) {
 503                                 groupV1.removeMember(source);
 504                                 account.getGroupStore().updateGroup(groupV1);
 505                             }
 506                             break;
 507                         }
 508                         case REQUEST_INFO:
 509                             if (groupV1 != null && !isSync) {
 510                                 actions.add(new SendGroupInfoAction(source, groupV1.getGroupId()));
 511                             }
 512                             break;
 513                     }
 514                 } else {
 515                     // Received a group v1 message for a v2 group
 516                 }
 517             }
 518             if (message.getGroupContext().get().getGroupV2().isPresent()) {
 519                 final var groupContext = message.getGroupContext().get().getGroupV2().get();
 520                 final var groupMasterKey = groupContext.getMasterKey();
 521
 522                 context.getGroupHelper()
 523                         .getOrMigrateGroup(groupMasterKey,
 524                                 groupContext.getRevision(),
 525                                 groupContext.hasSignedGroupChange() ? groupContext.getSignedGroupChange() : null);
 526             }
 527         }
 528
 529         final var conversationPartnerAddress = isSync ? destination : source;
 530         if (conversationPartnerAddress != null && message.isEndSession()) {
 531             account.getSessionStore().deleteAllSessions(conversationPartnerAddress);
 532         }
 533         if (message.isExpirationUpdate() || message.getBody().isPresent()) {
 534             if (message.getGroupContext().isPresent()) {
 535                 if (message.getGroupContext().get().getGroupV1().isPresent()) {
 536                     var groupInfo = message.getGroupContext().get().getGroupV1().get();
 537                     var group = account.getGroupStore().getOrCreateGroupV1(GroupId.v1(groupInfo.getGroupId()));
 538                     if (group != null) {
 539                         if (group.messageExpirationTime != message.getExpiresInSeconds()) {
 540                             group.messageExpirationTime = message.getExpiresInSeconds();
 541                             account.getGroupStore().updateGroup(group);
 542                         }
 543                     }
 544                 } else if (message.getGroupContext().get().getGroupV2().isPresent()) {
 545                     // disappearing message timer already stored in the DecryptedGroup
 546                 }
 547             } else if (conversationPartnerAddress != null) {
 548                 context.getContactHelper()
 549                         .setExpirationTimer(conversationPartnerAddress, message.getExpiresInSeconds());
 550             }
 551         }
 552         if (!ignoreAttachments) {
 553             if (message.getAttachments().isPresent()) {
 554                 for (var attachment : message.getAttachments().get()) {
 555                     context.getAttachmentHelper().downloadAttachment(attachment);
 556                 }
 557             }
 558             if (message.getSharedContacts().isPresent()) {
 559                 for (var contact : message.getSharedContacts().get()) {
 560                     if (contact.getAvatar().isPresent()) {
 561                         context.getAttachmentHelper().downloadAttachment(contact.getAvatar().get().getAttachment());
 562                     }
 563                 }
 564             }
 565             if (message.getPreviews().isPresent()) {
 566                 final var previews = message.getPreviews().get();
 567                 for (var preview : previews) {
 568                     if (preview.getImage().isPresent()) {
 569                         context.getAttachmentHelper().downloadAttachment(preview.getImage().get());
 570                     }
 571                 }
 572             }
 573             if (message.getQuote().isPresent()) {
 574                 final var quote = message.getQuote().get();
 575
 576                 for (var quotedAttachment : quote.getAttachments()) {
 577                     final var thumbnail = quotedAttachment.getThumbnail();
 578                     if (thumbnail != null) {
 579                         context.getAttachmentHelper().downloadAttachment(thumbnail);
 580                     }
 581                 }
 582             }
 583         }
 584         if (message.getProfileKey().isPresent() && message.getProfileKey().get().length == 32) {
 585             final ProfileKey profileKey;
 586             try {
 587                 profileKey = new ProfileKey(message.getProfileKey().get());
 588             } catch (InvalidInputException e) {
 589                 throw new AssertionError(e);
 590             }
 591             if (account.getSelfRecipientId().equals(source)) {
 592                 this.account.setProfileKey(profileKey);
 593             }
 594             this.account.getProfileStore().storeProfileKey(source, profileKey);
 595         }
 596         if (message.getSticker().isPresent()) {
 597             final var messageSticker = message.getSticker().get();
 598             final var stickerPackId = StickerPackId.deserialize(messageSticker.getPackId());
 599             var sticker = account.getStickerStore().getSticker(stickerPackId);
 600             if (sticker == null) {
 601                 sticker = new Sticker(stickerPackId, messageSticker.getPackKey());
 602                 account.getStickerStore().updateSticker(sticker);
 603             }
 604             context.getJobExecutor().enqueueJob(new RetrieveStickerPackJob(stickerPackId, messageSticker.getPackKey()));
 605         }
 606         return actions;
 607     }
 608 }