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