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

   1 package org.asamk.signal.manager.helper;
   2
   3 import com.google.protobuf.ByteString;
   4
   5 import org.asamk.signal.manager.api.Contact;
   6 import org.asamk.signal.manager.api.GroupId;
   7 import org.asamk.signal.manager.api.GroupNotFoundException;
   8 import org.asamk.signal.manager.api.GroupSendingNotAllowedException;
   9 import org.asamk.signal.manager.api.NotAGroupMemberException;
  10 import org.asamk.signal.manager.api.Profile;
  11 import org.asamk.signal.manager.api.UnregisteredRecipientException;
  12 import org.asamk.signal.manager.groups.GroupUtils;
  13 import org.asamk.signal.manager.internal.SignalDependencies;
  14 import org.asamk.signal.manager.storage.SignalAccount;
  15 import org.asamk.signal.manager.storage.groups.GroupInfo;
  16 import org.asamk.signal.manager.storage.recipients.RecipientId;
  17 import org.asamk.signal.manager.storage.sendLog.MessageSendLogEntry;
  18 import org.signal.libsignal.protocol.InvalidKeyException;
  19 import org.signal.libsignal.protocol.InvalidRegistrationIdException;
  20 import org.signal.libsignal.protocol.NoSessionException;
  21 import org.signal.libsignal.protocol.SignalProtocolAddress;
  22 import org.signal.libsignal.protocol.message.DecryptionErrorMessage;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25 import org.whispersystems.signalservice.api.SignalServiceMessageSender;
  26 import org.whispersystems.signalservice.api.crypto.ContentHint;
  27 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
  28 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
  29 import org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
  30 import org.whispersystems.signalservice.api.messages.SendMessageResult;
  31 import org.whispersystems.signalservice.api.messages.SignalServiceDataMessage;
  32 import org.whispersystems.signalservice.api.messages.SignalServiceEditMessage;
  33 import org.whispersystems.signalservice.api.messages.SignalServiceReceiptMessage;
  34 import org.whispersystems.signalservice.api.messages.SignalServiceTypingMessage;
  35 import org.whispersystems.signalservice.api.messages.multidevice.SentTranscriptMessage;
  36 import org.whispersystems.signalservice.api.messages.multidevice.SignalServiceSyncMessage;
  37 import org.whispersystems.signalservice.api.push.DistributionId;
  38 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  39 import org.whispersystems.signalservice.api.push.exceptions.NotFoundException;
  40 import org.whispersystems.signalservice.api.push.exceptions.ProofRequiredException;
  41 import org.whispersystems.signalservice.api.push.exceptions.RateLimitException;
  42 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
  43 import org.whispersystems.signalservice.internal.push.exceptions.InvalidUnidentifiedAccessHeaderException;
  44 import org.whispersystems.signalservice.internal.push.http.PartialSendCompleteListener;
  45
  46 import java.io.IOException;
  47 import java.time.Duration;
  48 import java.util.ArrayList;
  49 import java.util.HashSet;
  50 import java.util.List;
  51 import java.util.Map;
  52 import java.util.Optional;
  53 import java.util.Set;
  54 import java.util.concurrent.TimeUnit;
  55 import java.util.concurrent.atomic.AtomicLong;
  56
  57 public class SendHelper {
  58
  59     private final static Logger logger = LoggerFactory.getLogger(SendHelper.class);
  60
  61     private final SignalAccount account;
  62     private final SignalDependencies dependencies;
  63     private final Context context;
  64
  65     public SendHelper(final Context context) {
  66         this.account = context.getAccount();
  67         this.dependencies = context.getDependencies();
  68         this.context = context;
  69     }
  70
  71     /**
  72      * Send a single message to one recipient.
  73      * The message is extended with the current expiration timer.
  74      */
  75     public SendMessageResult sendMessage(
  76             final SignalServiceDataMessage.Builder messageBuilder,
  77             final RecipientId recipientId,
  78             Optional<Long> editTargetTimestamp
  79     ) {
  80         var contact = account.getContactStore().getContact(recipientId);
  81         if (contact == null || !contact.isProfileSharingEnabled()) {
  82             final var contactBuilder = contact == null ? Contact.newBuilder() : Contact.newBuilder(contact);
  83             contact = contactBuilder.withProfileSharingEnabled(true).build();
  84             account.getContactStore().storeContact(recipientId, contact);
  85         }
  86
  87         final var expirationTime = contact.getMessageExpirationTime();
  88         messageBuilder.withExpiration(expirationTime);
  89
  90         if (!contact.isBlocked()) {
  91             final var profileKey = account.getProfileKey().serialize();
  92             messageBuilder.withProfileKey(profileKey);
  93         }
  94
  95         final var message = messageBuilder.build();
  96         return sendMessage(message, recipientId, editTargetTimestamp);
  97     }
  98
  99     /**
 100      * Send a group message to the given group
 101      * The message is extended with the current expiration timer for the group and the group context.
 102      */
 103     public List<SendMessageResult> sendAsGroupMessage(
 104             SignalServiceDataMessage.Builder messageBuilder, GroupId groupId, Optional<Long> editTargetTimestamp
 105     ) throws IOException, GroupNotFoundException, NotAGroupMemberException, GroupSendingNotAllowedException {
 106         final var g = getGroupForSending(groupId);
 107         return sendAsGroupMessage(messageBuilder, g, editTargetTimestamp);
 108     }
 109
 110     /**
 111      * Send a complete group message to the given recipients (should be current/old/new members)
 112      * This method should only be used for create/update/quit group messages.
 113      */
 114     public List<SendMessageResult> sendGroupMessage(
 115             final SignalServiceDataMessage message,
 116             final Set<RecipientId> recipientIds,
 117             final DistributionId distributionId
 118     ) throws IOException {
 119         return sendGroupMessage(message, recipientIds, distributionId, ContentHint.IMPLICIT, Optional.empty());
 120     }
 121
 122     public SendMessageResult sendReceiptMessage(
 123             final SignalServiceReceiptMessage receiptMessage, final RecipientId recipientId
 124     ) {
 125         final var messageSendLogStore = account.getMessageSendLogStore();
 126         final var result = handleSendMessage(recipientId,
 127                 (messageSender, address, unidentifiedAccess) -> messageSender.sendReceipt(address,
 128                         unidentifiedAccess,
 129                         receiptMessage,
 130                         false));
 131         messageSendLogStore.insertIfPossible(receiptMessage.getWhen(), result, ContentHint.IMPLICIT, false);
 132         handleSendMessageResult(result);
 133         return result;
 134     }
 135
 136     public SendMessageResult sendProfileKey(RecipientId recipientId) {
 137         logger.debug("Sending updated profile key to recipient: {}", recipientId);
 138         final var profileKey = account.getProfileKey().serialize();
 139         final var message = SignalServiceDataMessage.newBuilder()
 140                 .asProfileKeyUpdate(true)
 141                 .withProfileKey(profileKey)
 142                 .build();
 143         return handleSendMessage(recipientId,
 144                 (messageSender, address, unidentifiedAccess) -> messageSender.sendDataMessage(address,
 145                         unidentifiedAccess,
 146                         ContentHint.IMPLICIT,
 147                         message,
 148                         SignalServiceMessageSender.IndividualSendEvents.EMPTY,
 149                         false,
 150                         false));
 151     }
 152
 153     public SendMessageResult sendRetryReceipt(
 154             DecryptionErrorMessage errorMessage, RecipientId recipientId, Optional<GroupId> groupId
 155     ) {
 156         logger.debug("Sending retry receipt for {} to {}, device: {}",
 157                 errorMessage.getTimestamp(),
 158                 recipientId,
 159                 errorMessage.getDeviceId());
 160         final var result = handleSendMessage(recipientId,
 161                 (messageSender, address, unidentifiedAccess) -> messageSender.sendRetryReceipt(address,
 162                         unidentifiedAccess,
 163                         groupId.map(GroupId::serialize),
 164                         errorMessage));
 165         handleSendMessageResult(result);
 166         return result;
 167     }
 168
 169     public SendMessageResult sendNullMessage(RecipientId recipientId) {
 170         final var result = handleSendMessage(recipientId, SignalServiceMessageSender::sendNullMessage);
 171         handleSendMessageResult(result);
 172         return result;
 173     }
 174
 175     public SendMessageResult sendSelfMessage(
 176             SignalServiceDataMessage.Builder messageBuilder, Optional<Long> editTargetTimestamp
 177     ) {
 178         final var recipientId = account.getSelfRecipientId();
 179         final var contact = account.getContactStore().getContact(recipientId);
 180         final var expirationTime = contact != null ? contact.getMessageExpirationTime() : 0;
 181         messageBuilder.withExpiration(expirationTime);
 182
 183         var message = messageBuilder.build();
 184         return sendSelfMessage(message, editTargetTimestamp);
 185     }
 186
 187     public SendMessageResult sendSyncMessage(SignalServiceSyncMessage message) {
 188         var messageSender = dependencies.getMessageSender();
 189         try {
 190             return messageSender.sendSyncMessage(message, context.getUnidentifiedAccessHelper().getAccessForSync());
 191         } catch (UnregisteredUserException e) {
 192             var address = context.getRecipientHelper().resolveSignalServiceAddress(account.getSelfRecipientId());
 193             return SendMessageResult.unregisteredFailure(address);
 194         } catch (ProofRequiredException e) {
 195             var address = context.getRecipientHelper().resolveSignalServiceAddress(account.getSelfRecipientId());
 196             return SendMessageResult.proofRequiredFailure(address, e);
 197         } catch (RateLimitException e) {
 198             var address = context.getRecipientHelper().resolveSignalServiceAddress(account.getSelfRecipientId());
 199             logger.warn("Sending failed due to rate limiting from the signal server: {}", e.getMessage());
 200             return SendMessageResult.rateLimitFailure(address, e);
 201         } catch (org.whispersystems.signalservice.api.crypto.UntrustedIdentityException e) {
 202             var address = context.getRecipientHelper().resolveSignalServiceAddress(account.getSelfRecipientId());
 203             return SendMessageResult.identityFailure(address, e.getIdentityKey());
 204         } catch (IOException e) {
 205             var address = context.getRecipientHelper().resolveSignalServiceAddress(account.getSelfRecipientId());
 206             logger.warn("Failed to send message due to IO exception: {}", e.getMessage());
 207             logger.debug("Exception", e);
 208             return SendMessageResult.networkFailure(address);
 209         }
 210     }
 211
 212     public SendMessageResult sendTypingMessage(
 213             SignalServiceTypingMessage message, RecipientId recipientId
 214     ) {
 215         final var result = handleSendMessage(recipientId,
 216                 (messageSender, address, unidentifiedAccess) -> messageSender.sendTyping(List.of(address),
 217                         List.of(unidentifiedAccess),
 218                         message,
 219                         null).get(0));
 220         handleSendMessageResult(result);
 221         return result;
 222     }
 223
 224     public List<SendMessageResult> sendGroupTypingMessage(
 225             SignalServiceTypingMessage message, GroupId groupId
 226     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 227         final var g = getGroupForSending(groupId);
 228         if (g.isAnnouncementGroup() && !g.isAdmin(account.getSelfRecipientId())) {
 229             throw new GroupSendingNotAllowedException(groupId, g.getTitle());
 230         }
 231         final var distributionId = g.getDistributionId();
 232         final var recipientIds = g.getMembersWithout(account.getSelfRecipientId());
 233
 234         return sendGroupTypingMessage(message, recipientIds, distributionId);
 235     }
 236
 237     public SendMessageResult resendMessage(
 238             final RecipientId recipientId, final long timestamp, final MessageSendLogEntry messageSendLogEntry
 239     ) {
 240         logger.trace("Resending message {} to {}", timestamp, recipientId);
 241         if (messageSendLogEntry.groupId().isEmpty()) {
 242             return handleSendMessage(recipientId,
 243                     (messageSender, address, unidentifiedAccess) -> messageSender.resendContent(address,
 244                             unidentifiedAccess,
 245                             timestamp,
 246                             messageSendLogEntry.content(),
 247                             messageSendLogEntry.contentHint(),
 248                             Optional.empty(),
 249                             messageSendLogEntry.urgent()));
 250         }
 251
 252         final var groupId = messageSendLogEntry.groupId().get();
 253         final var group = account.getGroupStore().getGroup(groupId);
 254
 255         if (group == null) {
 256             logger.debug("Could not find a matching group for the groupId {}! Skipping message send.",
 257                     groupId.toBase64());
 258             return null;
 259         } else if (!group.getMembers().contains(recipientId)) {
 260             logger.warn("The target user is no longer in the group {}! Skipping message send.", groupId.toBase64());
 261             return null;
 262         }
 263
 264         final var senderKeyDistributionMessage = dependencies.getMessageSender()
 265                 .getOrCreateNewGroupSession(group.getDistributionId());
 266         final var distributionBytes = ByteString.copyFrom(senderKeyDistributionMessage.serialize());
 267         final var contentToSend = messageSendLogEntry.content()
 268                 .toBuilder()
 269                 .setSenderKeyDistributionMessage(distributionBytes)
 270                 .build();
 271
 272         final var result = handleSendMessage(recipientId,
 273                 (messageSender, address, unidentifiedAccess) -> messageSender.resendContent(address,
 274                         unidentifiedAccess,
 275                         timestamp,
 276                         contentToSend,
 277                         messageSendLogEntry.contentHint(),
 278                         Optional.of(group.getGroupId().serialize()),
 279                         messageSendLogEntry.urgent()));
 280
 281         if (result.isSuccess()) {
 282             final var address = context.getRecipientHelper().resolveSignalServiceAddress(recipientId);
 283             final var addresses = result.getSuccess()
 284                     .getDevices()
 285                     .stream()
 286                     .map(device -> new SignalProtocolAddress(address.getIdentifier(), device))
 287                     .toList();
 288
 289             account.getSenderKeyStore().markSenderKeySharedWith(group.getDistributionId(), addresses);
 290         }
 291
 292         return result;
 293     }
 294
 295     private List<SendMessageResult> sendAsGroupMessage(
 296             final SignalServiceDataMessage.Builder messageBuilder, final GroupInfo g, Optional<Long> editTargetTimestamp
 297     ) throws IOException, GroupSendingNotAllowedException {
 298         GroupUtils.setGroupContext(messageBuilder, g);
 299         messageBuilder.withExpiration(g.getMessageExpirationTimer());
 300
 301         final var message = messageBuilder.build();
 302         final var recipients = g.getMembersWithout(account.getSelfRecipientId());
 303
 304         if (g.isAnnouncementGroup() && !g.isAdmin(account.getSelfRecipientId())) {
 305             if (message.getBody().isPresent()
 306                     || message.getAttachments().isPresent()
 307                     || message.getQuote().isPresent()
 308                     || message.getPreviews().isPresent()
 309                     || message.getMentions().isPresent()
 310                     || message.getSticker().isPresent()) {
 311                 throw new GroupSendingNotAllowedException(g.getGroupId(), g.getTitle());
 312             }
 313         }
 314
 315         return sendGroupMessage(message,
 316                 recipients,
 317                 g.getDistributionId(),
 318                 ContentHint.RESENDABLE,
 319                 editTargetTimestamp);
 320     }
 321
 322     private List<SendMessageResult> sendGroupMessage(
 323             final SignalServiceDataMessage message,
 324             final Set<RecipientId> recipientIds,
 325             final DistributionId distributionId,
 326             final ContentHint contentHint,
 327             final Optional<Long> editTargetTimestamp
 328     ) throws IOException {
 329         final var messageSender = dependencies.getMessageSender();
 330         final var messageSendLogStore = account.getMessageSendLogStore();
 331         final AtomicLong entryId = new AtomicLong(-1);
 332
 333         final var urgent = true;
 334         final PartialSendCompleteListener partialSendCompleteListener = sendResult -> {
 335             logger.trace("Partial message send result: {}", sendResult.isSuccess());
 336             synchronized (entryId) {
 337                 if (entryId.get() == -1) {
 338                     final var newId = messageSendLogStore.insertIfPossible(message.getTimestamp(),
 339                             sendResult,
 340                             contentHint,
 341                             urgent);
 342                     entryId.set(newId);
 343                 } else {
 344                     messageSendLogStore.addRecipientToExistingEntryIfPossible(entryId.get(), sendResult);
 345                 }
 346             }
 347         };
 348         final LegacySenderHandler legacySender = (recipients, unidentifiedAccess, isRecipientUpdate) ->
 349                 editTargetTimestamp.isEmpty()
 350                         ? messageSender.sendDataMessage(recipients,
 351                         unidentifiedAccess,
 352                         isRecipientUpdate,
 353                         contentHint,
 354                         message,
 355                         SignalServiceMessageSender.LegacyGroupEvents.EMPTY,
 356                         partialSendCompleteListener,
 357                         () -> false,
 358                         urgent)
 359                         : messageSender.sendEditMessage(recipients,
 360                                 unidentifiedAccess,
 361                                 isRecipientUpdate,
 362                                 contentHint,
 363                                 message,
 364                                 SignalServiceMessageSender.LegacyGroupEvents.EMPTY,
 365                                 partialSendCompleteListener,
 366                                 () -> false,
 367                                 urgent,
 368                                 editTargetTimestamp.get());
 369         final SenderKeySenderHandler senderKeySender = (distId, recipients, unidentifiedAccess, isRecipientUpdate) -> messageSender.sendGroupDataMessage(
 370                 distId,
 371                 recipients,
 372                 unidentifiedAccess,
 373                 isRecipientUpdate,
 374                 contentHint,
 375                 message,
 376                 SignalServiceMessageSender.SenderKeyGroupEvents.EMPTY,
 377                 urgent,
 378                 false,
 379                 editTargetTimestamp.map(timestamp -> new SignalServiceEditMessage(timestamp, message)).orElse(null),
 380                 sendResult -> {
 381                     logger.trace("Partial message send results: {}", sendResult.size());
 382                     synchronized (entryId) {
 383                         if (entryId.get() == -1) {
 384                             final var newId = messageSendLogStore.insertIfPossible(message.getTimestamp(),
 385                                     sendResult,
 386                                     contentHint,
 387                                     urgent);
 388                             entryId.set(newId);
 389                         } else {
 390                             messageSendLogStore.addRecipientToExistingEntryIfPossible(entryId.get(), sendResult);
 391                         }
 392                     }
 393                     synchronized (entryId) {
 394                         if (entryId.get() == -1) {
 395                             final var newId = messageSendLogStore.insertIfPossible(message.getTimestamp(),
 396                                     sendResult,
 397                                     contentHint,
 398                                     urgent);
 399                             entryId.set(newId);
 400                         } else {
 401                             messageSendLogStore.addRecipientToExistingEntryIfPossible(entryId.get(), sendResult);
 402                         }
 403                     }
 404                 });
 405         final var results = sendGroupMessageInternal(legacySender, senderKeySender, recipientIds, distributionId);
 406
 407         for (var r : results) {
 408             handleSendMessageResult(r);
 409         }
 410
 411         return results;
 412     }
 413
 414     private List<SendMessageResult> sendGroupTypingMessage(
 415             final SignalServiceTypingMessage message,
 416             final Set<RecipientId> recipientIds,
 417             final DistributionId distributionId
 418     ) throws IOException {
 419         final var messageSender = dependencies.getMessageSender();
 420         final var results = sendGroupMessageInternal((recipients, unidentifiedAccess, isRecipientUpdate) -> messageSender.sendTyping(
 421                         recipients,
 422                         unidentifiedAccess,
 423                         message,
 424                         () -> false),
 425                 (distId, recipients, unidentifiedAccess, isRecipientUpdate) -> messageSender.sendGroupTyping(distId,
 426                         recipients,
 427                         unidentifiedAccess,
 428                         message),
 429                 recipientIds,
 430                 distributionId);
 431
 432         for (var r : results) {
 433             handleSendMessageResult(r);
 434         }
 435
 436         return results;
 437     }
 438
 439     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 440         var g = context.getGroupHelper().getGroup(groupId);
 441         if (g == null) {
 442             throw new GroupNotFoundException(groupId);
 443         }
 444         if (!g.isMember(account.getSelfRecipientId())) {
 445             throw new NotAGroupMemberException(groupId, g.getTitle());
 446         }
 447         return g;
 448     }
 449
 450     private List<SendMessageResult> sendGroupMessageInternal(
 451             final LegacySenderHandler legacySender,
 452             final SenderKeySenderHandler senderKeySender,
 453             final Set<RecipientId> recipientIds,
 454             final DistributionId distributionId
 455     ) throws IOException {
 456         long startTime = System.currentTimeMillis();
 457         // isRecipientUpdate is true if we've already sent this message to some recipients in the past, otherwise false.
 458         final var isRecipientUpdate = false;
 459         Set<RecipientId> senderKeyTargets = distributionId == null
 460                 ? Set.of()
 461                 : getSenderKeyCapableRecipientIds(recipientIds);
 462         final var allResults = new ArrayList<SendMessageResult>(recipientIds.size());
 463
 464         if (senderKeyTargets.size() > 0) {
 465             final var results = sendGroupMessageInternalWithSenderKey(senderKeySender,
 466                     senderKeyTargets,
 467                     distributionId,
 468                     isRecipientUpdate);
 469
 470             if (results == null) {
 471                 senderKeyTargets = Set.of();
 472             } else {
 473                 results.stream().filter(SendMessageResult::isSuccess).forEach(allResults::add);
 474                 final var failedTargets = results.stream()
 475                         .filter(r -> !r.isSuccess())
 476                         .map(r -> context.getRecipientHelper().resolveRecipient(r.getAddress()))
 477                         .toList();
 478                 if (failedTargets.size() > 0) {
 479                     senderKeyTargets = new HashSet<>(senderKeyTargets);
 480                     failedTargets.forEach(senderKeyTargets::remove);
 481                 }
 482             }
 483         }
 484
 485         final var legacyTargets = new HashSet<>(recipientIds);
 486         legacyTargets.removeAll(senderKeyTargets);
 487         final boolean onlyTargetIsSelfWithLinkedDevice = recipientIds.isEmpty() && account.isMultiDevice();
 488
 489         if (legacyTargets.size() > 0 || onlyTargetIsSelfWithLinkedDevice) {
 490             if (legacyTargets.size() > 0) {
 491                 logger.debug("Need to do {} legacy sends.", legacyTargets.size());
 492             } else {
 493                 logger.debug("Need to do a legacy send to send a sync message for a group of only ourselves.");
 494             }
 495
 496             final List<SendMessageResult> results = sendGroupMessageInternalWithLegacy(legacySender,
 497                     legacyTargets,
 498                     isRecipientUpdate || allResults.size() > 0);
 499             allResults.addAll(results);
 500         }
 501         final var duration = Duration.ofMillis(System.currentTimeMillis() - startTime);
 502         logger.debug("Sending took {}", duration.toString());
 503         return allResults;
 504     }
 505
 506     private Set<RecipientId> getSenderKeyCapableRecipientIds(final Set<RecipientId> recipientIds) {
 507         final var selfProfile = context.getProfileHelper().getSelfProfile();
 508         if (selfProfile == null || !selfProfile.getCapabilities().contains(Profile.Capability.senderKey)) {
 509             logger.debug("Not all of our devices support sender key. Using legacy.");
 510             return Set.of();
 511         }
 512
 513         final var senderKeyTargets = new HashSet<RecipientId>();
 514         final var recipientList = new ArrayList<>(recipientIds);
 515         final var profiles = context.getProfileHelper().getRecipientProfiles(recipientList).iterator();
 516         for (final var recipientId : recipientList) {
 517             final var profile = profiles.next();
 518             if (profile == null || !profile.getCapabilities().contains(Profile.Capability.senderKey)) {
 519                 continue;
 520             }
 521
 522             final var access = context.getUnidentifiedAccessHelper().getAccessFor(recipientId);
 523             if (access.isEmpty() || access.get().getTargetUnidentifiedAccess().isEmpty()) {
 524                 continue;
 525             }
 526
 527             final var serviceId = account.getRecipientAddressResolver()
 528                     .resolveRecipientAddress(recipientId)
 529                     .serviceId()
 530                     .orElse(null);
 531             if (serviceId == null) {
 532                 continue;
 533             }
 534             final var identity = account.getIdentityKeyStore().getIdentityInfo(serviceId);
 535             if (identity == null || !identity.getTrustLevel().isTrusted()) {
 536                 continue;
 537             }
 538
 539             senderKeyTargets.add(recipientId);
 540         }
 541
 542         if (senderKeyTargets.size() < 2) {
 543             logger.debug("Too few sender-key-capable users ({}). Doing all legacy sends.", senderKeyTargets.size());
 544             return Set.of();
 545         }
 546
 547         logger.debug("Can use sender key for {}/{} recipients.", senderKeyTargets.size(), recipientIds.size());
 548         return senderKeyTargets;
 549     }
 550
 551     private List<SendMessageResult> sendGroupMessageInternalWithLegacy(
 552             final LegacySenderHandler sender, final Set<RecipientId> recipientIds, final boolean isRecipientUpdate
 553     ) throws IOException {
 554         final var recipientIdList = new ArrayList<>(recipientIds);
 555         final var addresses = recipientIdList.stream()
 556                 .map(context.getRecipientHelper()::resolveSignalServiceAddress)
 557                 .toList();
 558         final var unidentifiedAccesses = context.getUnidentifiedAccessHelper().getAccessFor(recipientIdList);
 559         try {
 560             final var results = sender.send(addresses, unidentifiedAccesses, isRecipientUpdate);
 561
 562             final var successCount = results.stream().filter(SendMessageResult::isSuccess).count();
 563             logger.debug("Successfully sent using 1:1 to {}/{} legacy targets.", successCount, recipientIdList.size());
 564             return results;
 565         } catch (org.whispersystems.signalservice.api.crypto.UntrustedIdentityException e) {
 566             return List.of();
 567         }
 568     }
 569
 570     private List<SendMessageResult> sendGroupMessageInternalWithSenderKey(
 571             final SenderKeySenderHandler sender,
 572             final Set<RecipientId> recipientIds,
 573             final DistributionId distributionId,
 574             final boolean isRecipientUpdate
 575     ) throws IOException {
 576         final var recipientIdList = new ArrayList<>(recipientIds);
 577
 578         long keyCreateTime = account.getSenderKeyStore()
 579                 .getCreateTimeForOurKey(account.getAci(), account.getDeviceId(), distributionId);
 580         long keyAge = System.currentTimeMillis() - keyCreateTime;
 581
 582         if (keyCreateTime != -1 && keyAge > TimeUnit.DAYS.toMillis(14)) {
 583             logger.debug("DistributionId {} was created at {} and is {} ms old (~{} days). Rotating.",
 584                     distributionId,
 585                     keyCreateTime,
 586                     keyAge,
 587                     TimeUnit.MILLISECONDS.toDays(keyAge));
 588             account.getSenderKeyStore().deleteOurKey(account.getAci(), distributionId);
 589         }
 590
 591         List<SignalServiceAddress> addresses = recipientIdList.stream()
 592                 .map(context.getRecipientHelper()::resolveSignalServiceAddress)
 593                 .toList();
 594         List<UnidentifiedAccess> unidentifiedAccesses = context.getUnidentifiedAccessHelper()
 595                 .getAccessFor(recipientIdList)
 596                 .stream()
 597                 .map(Optional::get)
 598                 .map(UnidentifiedAccessPair::getTargetUnidentifiedAccess)
 599                 .map(Optional::get)
 600                 .toList();
 601
 602         try {
 603             List<SendMessageResult> results = sender.send(distributionId,
 604                     addresses,
 605                     unidentifiedAccesses,
 606                     isRecipientUpdate);
 607
 608             final var successCount = results.stream().filter(SendMessageResult::isSuccess).count();
 609             logger.debug("Successfully sent using sender key to {}/{} sender key targets.",
 610                     successCount,
 611                     addresses.size());
 612
 613             return results;
 614         } catch (org.whispersystems.signalservice.api.crypto.UntrustedIdentityException e) {
 615             return null;
 616         } catch (InvalidUnidentifiedAccessHeaderException e) {
 617             logger.warn("Someone had a bad UD header. Falling back to legacy sends.", e);
 618             return null;
 619         } catch (NoSessionException e) {
 620             logger.warn("No session. Falling back to legacy sends.", e);
 621             account.getSenderKeyStore().deleteOurKey(account.getAci(), distributionId);
 622             return null;
 623         } catch (InvalidKeyException e) {
 624             logger.warn("Invalid key. Falling back to legacy sends.", e);
 625             account.getSenderKeyStore().deleteOurKey(account.getAci(), distributionId);
 626             return null;
 627         } catch (InvalidRegistrationIdException e) {
 628             logger.warn("Invalid registrationId. Falling back to legacy sends.", e);
 629             return null;
 630         } catch (NotFoundException e) {
 631             logger.warn("Someone was unregistered. Falling back to legacy sends.", e);
 632             return null;
 633         } catch (IOException e) {
 634             if (e.getCause() instanceof InvalidKeyException) {
 635                 logger.warn("Invalid key. Falling back to legacy sends.", e);
 636                 return null;
 637             } else {
 638                 throw e;
 639             }
 640         }
 641     }
 642
 643     private SendMessageResult sendMessage(
 644             SignalServiceDataMessage message, RecipientId recipientId, Optional<Long> editTargetTimestamp
 645     ) {
 646         final var messageSendLogStore = account.getMessageSendLogStore();
 647         final var urgent = true;
 648         final var includePniSignature = false;
 649         final var result = handleSendMessage(recipientId,
 650                 editTargetTimestamp.isEmpty()
 651                         ? (messageSender, address, unidentifiedAccess) -> messageSender.sendDataMessage(address,
 652                         unidentifiedAccess,
 653                         ContentHint.RESENDABLE,
 654                         message,
 655                         SignalServiceMessageSender.IndividualSendEvents.EMPTY,
 656                         urgent,
 657                         includePniSignature)
 658                         : (messageSender, address, unidentifiedAccess) -> messageSender.sendEditMessage(address,
 659                                 unidentifiedAccess,
 660                                 ContentHint.RESENDABLE,
 661                                 message,
 662                                 SignalServiceMessageSender.IndividualSendEvents.EMPTY,
 663                                 urgent,
 664                                 editTargetTimestamp.get()));
 665         messageSendLogStore.insertIfPossible(message.getTimestamp(), result, ContentHint.RESENDABLE, urgent);
 666         handleSendMessageResult(result);
 667         return result;
 668     }
 669
 670     private SendMessageResult handleSendMessage(RecipientId recipientId, SenderHandler s) {
 671         var messageSender = dependencies.getMessageSender();
 672
 673         var address = context.getRecipientHelper().resolveSignalServiceAddress(recipientId);
 674         try {
 675             try {
 676                 return s.send(messageSender, address, context.getUnidentifiedAccessHelper().getAccessFor(recipientId));
 677             } catch (UnregisteredUserException e) {
 678                 final RecipientId newRecipientId;
 679                 try {
 680                     newRecipientId = context.getRecipientHelper().refreshRegisteredUser(recipientId);
 681                 } catch (UnregisteredRecipientException ex) {
 682                     return SendMessageResult.unregisteredFailure(address);
 683                 }
 684                 address = context.getRecipientHelper().resolveSignalServiceAddress(newRecipientId);
 685                 return s.send(messageSender,
 686                         address,
 687                         context.getUnidentifiedAccessHelper().getAccessFor(newRecipientId));
 688             }
 689         } catch (UnregisteredUserException e) {
 690             return SendMessageResult.unregisteredFailure(address);
 691         } catch (ProofRequiredException e) {
 692             return SendMessageResult.proofRequiredFailure(address, e);
 693         } catch (RateLimitException e) {
 694             logger.warn("Sending failed due to rate limiting from the signal server: {}", e.getMessage());
 695             return SendMessageResult.rateLimitFailure(address, e);
 696         } catch (org.whispersystems.signalservice.api.crypto.UntrustedIdentityException e) {
 697             return SendMessageResult.identityFailure(address, e.getIdentityKey());
 698         } catch (IOException e) {
 699             logger.warn("Failed to send message due to IO exception: {}", e.getMessage());
 700             logger.debug("Exception", e);
 701             return SendMessageResult.networkFailure(address);
 702         }
 703     }
 704
 705     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message, Optional<Long> editTargetTimestamp) {
 706         var address = account.getSelfAddress();
 707         var transcript = new SentTranscriptMessage(Optional.of(address),
 708                 message.getTimestamp(),
 709                 editTargetTimestamp.isEmpty() ? Optional.of(message) : Optional.empty(),
 710                 message.getExpiresInSeconds(),
 711                 Map.of(address.getServiceId(), true),
 712                 false,
 713                 Optional.empty(),
 714                 Set.of(),
 715                 editTargetTimestamp.map((timestamp) -> new SignalServiceEditMessage(timestamp, message)));
 716         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
 717
 718         return sendSyncMessage(syncMessage);
 719     }
 720
 721     private void handleSendMessageResult(final SendMessageResult r) {
 722         if (r.isSuccess() && !r.getSuccess().isUnidentified()) {
 723             final var recipientId = context.getRecipientHelper().resolveRecipient(r.getAddress());
 724             final var profile = account.getProfileStore().getProfile(recipientId);
 725             if (profile != null && (
 726                     profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.ENABLED
 727                             || profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.UNRESTRICTED
 728             )) {
 729                 account.getProfileStore()
 730                         .storeProfile(recipientId,
 731                                 Profile.newBuilder(profile)
 732                                         .withUnidentifiedAccessMode(Profile.UnidentifiedAccessMode.UNKNOWN)
 733                                         .build());
 734             }
 735         }
 736         if (r.isUnregisteredFailure()) {
 737             final var recipientId = context.getRecipientHelper().resolveRecipient(r.getAddress());
 738             final var profile = account.getProfileStore().getProfile(recipientId);
 739             if (profile != null && (
 740                     profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.ENABLED
 741                             || profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.UNRESTRICTED
 742             )) {
 743                 account.getProfileStore()
 744                         .storeProfile(recipientId,
 745                                 Profile.newBuilder(profile)
 746                                         .withUnidentifiedAccessMode(Profile.UnidentifiedAccessMode.UNKNOWN)
 747                                         .build());
 748             }
 749         }
 750         if (r.getIdentityFailure() != null) {
 751             final var recipientId = context.getRecipientHelper().resolveRecipient(r.getAddress());
 752             context.getIdentityHelper()
 753                     .handleIdentityFailure(recipientId, r.getAddress().getServiceId(), r.getIdentityFailure());
 754         }
 755     }
 756
 757     interface SenderHandler {
 758
 759         SendMessageResult send(
 760                 SignalServiceMessageSender messageSender,
 761                 SignalServiceAddress address,
 762                 Optional<UnidentifiedAccessPair> unidentifiedAccess
 763         ) throws IOException, UnregisteredUserException, ProofRequiredException, RateLimitException, org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
 764     }
 765
 766     interface SenderKeySenderHandler {
 767
 768         List<SendMessageResult> send(
 769                 DistributionId distributionId,
 770                 List<SignalServiceAddress> recipients,
 771                 List<UnidentifiedAccess> unidentifiedAccess,
 772                 boolean isRecipientUpdate
 773         ) throws IOException, UntrustedIdentityException, NoSessionException, InvalidKeyException, InvalidRegistrationIdException;
 774     }
 775
 776     interface LegacySenderHandler {
 777
 778         List<SendMessageResult> send(
 779                 List<SignalServiceAddress> recipients,
 780                 List<Optional<UnidentifiedAccessPair>> unidentifiedAccess,
 781                 boolean isRecipientUpdate
 782         ) throws IOException, UntrustedIdentityException;
 783     }
 784 }