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             logger.debug("Exception", e);
 204             return SendMessageResult.networkFailure(address);
 205         }
 206     }
 207
 208     public SendMessageResult sendTypingMessage(
 209             SignalServiceTypingMessage message, RecipientId recipientId
 210     ) {
 211         final var result = handleSendMessage(recipientId,
 212                 (messageSender, address, unidentifiedAccess) -> messageSender.sendTyping(List.of(address),
 213                         List.of(unidentifiedAccess),
 214                         message,
 215                         null).get(0));
 216         handleSendMessageResult(result);
 217         return result;
 218     }
 219
 220     public List<SendMessageResult> sendGroupTypingMessage(
 221             SignalServiceTypingMessage message, GroupId groupId
 222     ) throws IOException, NotAGroupMemberException, GroupNotFoundException, GroupSendingNotAllowedException {
 223         final var g = getGroupForSending(groupId);
 224         if (g.isAnnouncementGroup() && !g.isAdmin(account.getSelfRecipientId())) {
 225             throw new GroupSendingNotAllowedException(groupId, g.getTitle());
 226         }
 227         final var distributionId = g.getDistributionId();
 228         final var recipientIds = g.getMembersWithout(account.getSelfRecipientId());
 229
 230         return sendGroupTypingMessage(message, recipientIds, distributionId);
 231     }
 232
 233     public SendMessageResult resendMessage(
 234             final RecipientId recipientId, final long timestamp, final MessageSendLogEntry messageSendLogEntry
 235     ) {
 236         logger.trace("Resending message {} to {}", timestamp, recipientId);
 237         if (messageSendLogEntry.groupId().isEmpty()) {
 238             return handleSendMessage(recipientId,
 239                     (messageSender, address, unidentifiedAccess) -> messageSender.resendContent(address,
 240                             unidentifiedAccess,
 241                             timestamp,
 242                             messageSendLogEntry.content(),
 243                             messageSendLogEntry.contentHint(),
 244                             Optional.empty(),
 245                             messageSendLogEntry.urgent()));
 246         }
 247
 248         final var groupId = messageSendLogEntry.groupId().get();
 249         final var group = account.getGroupStore().getGroup(groupId);
 250
 251         if (group == null) {
 252             logger.debug("Could not find a matching group for the groupId {}! Skipping message send.",
 253                     groupId.toBase64());
 254             return null;
 255         } else if (!group.getMembers().contains(recipientId)) {
 256             logger.warn("The target user is no longer in the group {}! Skipping message send.", groupId.toBase64());
 257             return null;
 258         }
 259
 260         final var senderKeyDistributionMessage = dependencies.getMessageSender()
 261                 .getOrCreateNewGroupSession(group.getDistributionId());
 262         final var distributionBytes = ByteString.copyFrom(senderKeyDistributionMessage.serialize());
 263         final var contentToSend = messageSendLogEntry.content()
 264                 .toBuilder()
 265                 .setSenderKeyDistributionMessage(distributionBytes)
 266                 .build();
 267
 268         final var result = handleSendMessage(recipientId,
 269                 (messageSender, address, unidentifiedAccess) -> messageSender.resendContent(address,
 270                         unidentifiedAccess,
 271                         timestamp,
 272                         contentToSend,
 273                         messageSendLogEntry.contentHint(),
 274                         Optional.of(group.getGroupId().serialize()),
 275                         messageSendLogEntry.urgent()));
 276
 277         if (result.isSuccess()) {
 278             final var address = context.getRecipientHelper().resolveSignalServiceAddress(recipientId);
 279             final var addresses = result.getSuccess()
 280                     .getDevices()
 281                     .stream()
 282                     .map(device -> new SignalProtocolAddress(address.getIdentifier(), device))
 283                     .toList();
 284
 285             account.getSenderKeyStore().markSenderKeySharedWith(group.getDistributionId(), addresses);
 286         }
 287
 288         return result;
 289     }
 290
 291     private List<SendMessageResult> sendAsGroupMessage(
 292             final SignalServiceDataMessage.Builder messageBuilder, final GroupInfo g
 293     ) throws IOException, GroupSendingNotAllowedException {
 294         GroupUtils.setGroupContext(messageBuilder, g);
 295         messageBuilder.withExpiration(g.getMessageExpirationTimer());
 296
 297         final var message = messageBuilder.build();
 298         final var recipients = g.getMembersWithout(account.getSelfRecipientId());
 299
 300         if (g.isAnnouncementGroup() && !g.isAdmin(account.getSelfRecipientId())) {
 301             if (message.getBody().isPresent()
 302                     || message.getAttachments().isPresent()
 303                     || message.getQuote().isPresent()
 304                     || message.getPreviews().isPresent()
 305                     || message.getMentions().isPresent()
 306                     || message.getSticker().isPresent()) {
 307                 throw new GroupSendingNotAllowedException(g.getGroupId(), g.getTitle());
 308             }
 309         }
 310
 311         return sendGroupMessage(message, recipients, g.getDistributionId(), ContentHint.RESENDABLE);
 312     }
 313
 314     private List<SendMessageResult> sendGroupMessage(
 315             final SignalServiceDataMessage message,
 316             final Set<RecipientId> recipientIds,
 317             final DistributionId distributionId,
 318             final ContentHint contentHint
 319     ) throws IOException {
 320         final var messageSender = dependencies.getMessageSender();
 321         final var messageSendLogStore = account.getMessageSendLogStore();
 322         final AtomicLong entryId = new AtomicLong(-1);
 323
 324         final var urgent = true;
 325         final LegacySenderHandler legacySender = (recipients, unidentifiedAccess, isRecipientUpdate) -> messageSender.sendDataMessage(
 326                 recipients,
 327                 unidentifiedAccess,
 328                 isRecipientUpdate,
 329                 contentHint,
 330                 message,
 331                 SignalServiceMessageSender.LegacyGroupEvents.EMPTY,
 332                 sendResult -> {
 333                     logger.trace("Partial message send result: {}", sendResult.isSuccess());
 334                     synchronized (entryId) {
 335                         if (entryId.get() == -1) {
 336                             final var newId = messageSendLogStore.insertIfPossible(message.getTimestamp(),
 337                                     sendResult,
 338                                     contentHint,
 339                                     urgent);
 340                             entryId.set(newId);
 341                         } else {
 342                             messageSendLogStore.addRecipientToExistingEntryIfPossible(entryId.get(), sendResult);
 343                         }
 344                     }
 345                 },
 346                 () -> false,
 347                 urgent);
 348         final SenderKeySenderHandler senderKeySender = (distId, recipients, unidentifiedAccess, isRecipientUpdate) -> messageSender.sendGroupDataMessage(
 349                 distId,
 350                 recipients,
 351                 unidentifiedAccess,
 352                 isRecipientUpdate,
 353                 contentHint,
 354                 message,
 355                 SignalServiceMessageSender.SenderKeyGroupEvents.EMPTY,
 356                 urgent,
 357                 false,
 358                 sendResult -> {
 359                     logger.trace("Partial message send results: {}", sendResult.size());
 360                     synchronized (entryId) {
 361                         if (entryId.get() == -1) {
 362                             final var newId = messageSendLogStore.insertIfPossible(message.getTimestamp(),
 363                                     sendResult,
 364                                     contentHint,
 365                                     urgent);
 366                             entryId.set(newId);
 367                         } else {
 368                             messageSendLogStore.addRecipientToExistingEntryIfPossible(entryId.get(), sendResult);
 369                         }
 370                     }
 371                     synchronized (entryId) {
 372                         if (entryId.get() == -1) {
 373                             final var newId = messageSendLogStore.insertIfPossible(message.getTimestamp(),
 374                                     sendResult,
 375                                     contentHint,
 376                                     urgent);
 377                             entryId.set(newId);
 378                         } else {
 379                             messageSendLogStore.addRecipientToExistingEntryIfPossible(entryId.get(), sendResult);
 380                         }
 381                     }
 382                 });
 383         final var results = sendGroupMessageInternal(legacySender, senderKeySender, recipientIds, distributionId);
 384
 385         for (var r : results) {
 386             handleSendMessageResult(r);
 387         }
 388
 389         return results;
 390     }
 391
 392     private List<SendMessageResult> sendGroupTypingMessage(
 393             final SignalServiceTypingMessage message,
 394             final Set<RecipientId> recipientIds,
 395             final DistributionId distributionId
 396     ) throws IOException {
 397         final var messageSender = dependencies.getMessageSender();
 398         final var results = sendGroupMessageInternal((recipients, unidentifiedAccess, isRecipientUpdate) -> messageSender.sendTyping(
 399                         recipients,
 400                         unidentifiedAccess,
 401                         message,
 402                         () -> false),
 403                 (distId, recipients, unidentifiedAccess, isRecipientUpdate) -> messageSender.sendGroupTyping(distId,
 404                         recipients,
 405                         unidentifiedAccess,
 406                         message),
 407                 recipientIds,
 408                 distributionId);
 409
 410         for (var r : results) {
 411             handleSendMessageResult(r);
 412         }
 413
 414         return results;
 415     }
 416
 417     private GroupInfo getGroupForSending(GroupId groupId) throws GroupNotFoundException, NotAGroupMemberException {
 418         var g = context.getGroupHelper().getGroup(groupId);
 419         if (g == null) {
 420             throw new GroupNotFoundException(groupId);
 421         }
 422         if (!g.isMember(account.getSelfRecipientId())) {
 423             throw new NotAGroupMemberException(groupId, g.getTitle());
 424         }
 425         return g;
 426     }
 427
 428     private List<SendMessageResult> sendGroupMessageInternal(
 429             final LegacySenderHandler legacySender,
 430             final SenderKeySenderHandler senderKeySender,
 431             final Set<RecipientId> recipientIds,
 432             final DistributionId distributionId
 433     ) throws IOException {
 434         long startTime = System.currentTimeMillis();
 435         // isRecipientUpdate is true if we've already sent this message to some recipients in the past, otherwise false.
 436         final var isRecipientUpdate = false;
 437         Set<RecipientId> senderKeyTargets = distributionId == null
 438                 ? Set.of()
 439                 : getSenderKeyCapableRecipientIds(recipientIds);
 440         final var allResults = new ArrayList<SendMessageResult>(recipientIds.size());
 441
 442         if (senderKeyTargets.size() > 0) {
 443             final var results = sendGroupMessageInternalWithSenderKey(senderKeySender,
 444                     senderKeyTargets,
 445                     distributionId,
 446                     isRecipientUpdate);
 447
 448             if (results == null) {
 449                 senderKeyTargets = Set.of();
 450             } else {
 451                 results.stream().filter(SendMessageResult::isSuccess).forEach(allResults::add);
 452                 final var failedTargets = results.stream()
 453                         .filter(r -> !r.isSuccess())
 454                         .map(r -> context.getRecipientHelper().resolveRecipient(r.getAddress()))
 455                         .toList();
 456                 if (failedTargets.size() > 0) {
 457                     senderKeyTargets = new HashSet<>(senderKeyTargets);
 458                     failedTargets.forEach(senderKeyTargets::remove);
 459                 }
 460             }
 461         }
 462
 463         final var legacyTargets = new HashSet<>(recipientIds);
 464         legacyTargets.removeAll(senderKeyTargets);
 465         final boolean onlyTargetIsSelfWithLinkedDevice = recipientIds.isEmpty() && account.isMultiDevice();
 466
 467         if (legacyTargets.size() > 0 || onlyTargetIsSelfWithLinkedDevice) {
 468             if (legacyTargets.size() > 0) {
 469                 logger.debug("Need to do {} legacy sends.", legacyTargets.size());
 470             } else {
 471                 logger.debug("Need to do a legacy send to send a sync message for a group of only ourselves.");
 472             }
 473
 474             final List<SendMessageResult> results = sendGroupMessageInternalWithLegacy(legacySender,
 475                     legacyTargets,
 476                     isRecipientUpdate || allResults.size() > 0);
 477             allResults.addAll(results);
 478         }
 479         final var duration = Duration.ofMillis(System.currentTimeMillis() - startTime);
 480         logger.debug("Sending took {}", duration.toString());
 481         return allResults;
 482     }
 483
 484     private Set<RecipientId> getSenderKeyCapableRecipientIds(final Set<RecipientId> recipientIds) {
 485         final var selfProfile = context.getProfileHelper().getSelfProfile();
 486         if (selfProfile == null || !selfProfile.getCapabilities().contains(Profile.Capability.senderKey)) {
 487             logger.debug("Not all of our devices support sender key. Using legacy.");
 488             return Set.of();
 489         }
 490
 491         final var senderKeyTargets = new HashSet<RecipientId>();
 492         final var recipientList = new ArrayList<>(recipientIds);
 493         final var profiles = context.getProfileHelper().getRecipientProfiles(recipientList).iterator();
 494         for (final var recipientId : recipientList) {
 495             final var profile = profiles.next();
 496             if (profile == null || !profile.getCapabilities().contains(Profile.Capability.senderKey)) {
 497                 continue;
 498             }
 499
 500             final var access = context.getUnidentifiedAccessHelper().getAccessFor(recipientId);
 501             if (access.isEmpty() || access.get().getTargetUnidentifiedAccess().isEmpty()) {
 502                 continue;
 503             }
 504
 505             final var serviceId = account.getRecipientAddressResolver()
 506                     .resolveRecipientAddress(recipientId)
 507                     .serviceId()
 508                     .orElse(null);
 509             if (serviceId == null) {
 510                 continue;
 511             }
 512             final var identity = account.getIdentityKeyStore().getIdentityInfo(serviceId);
 513             if (identity == null || !identity.getTrustLevel().isTrusted()) {
 514                 continue;
 515             }
 516
 517             senderKeyTargets.add(recipientId);
 518         }
 519
 520         if (senderKeyTargets.size() < 2) {
 521             logger.debug("Too few sender-key-capable users ({}). Doing all legacy sends.", senderKeyTargets.size());
 522             return Set.of();
 523         }
 524
 525         logger.debug("Can use sender key for {}/{} recipients.", senderKeyTargets.size(), recipientIds.size());
 526         return senderKeyTargets;
 527     }
 528
 529     private List<SendMessageResult> sendGroupMessageInternalWithLegacy(
 530             final LegacySenderHandler sender, final Set<RecipientId> recipientIds, final boolean isRecipientUpdate
 531     ) throws IOException {
 532         final var recipientIdList = new ArrayList<>(recipientIds);
 533         final var addresses = recipientIdList.stream()
 534                 .map(context.getRecipientHelper()::resolveSignalServiceAddress)
 535                 .toList();
 536         final var unidentifiedAccesses = context.getUnidentifiedAccessHelper().getAccessFor(recipientIdList);
 537         try {
 538             final var results = sender.send(addresses, unidentifiedAccesses, isRecipientUpdate);
 539
 540             final var successCount = results.stream().filter(SendMessageResult::isSuccess).count();
 541             logger.debug("Successfully sent using 1:1 to {}/{} legacy targets.", successCount, recipientIdList.size());
 542             return results;
 543         } catch (org.whispersystems.signalservice.api.crypto.UntrustedIdentityException e) {
 544             return List.of();
 545         }
 546     }
 547
 548     private List<SendMessageResult> sendGroupMessageInternalWithSenderKey(
 549             final SenderKeySenderHandler sender,
 550             final Set<RecipientId> recipientIds,
 551             final DistributionId distributionId,
 552             final boolean isRecipientUpdate
 553     ) throws IOException {
 554         final var recipientIdList = new ArrayList<>(recipientIds);
 555
 556         long keyCreateTime = account.getSenderKeyStore()
 557                 .getCreateTimeForOurKey(account.getAci(), account.getDeviceId(), distributionId);
 558         long keyAge = System.currentTimeMillis() - keyCreateTime;
 559
 560         if (keyCreateTime != -1 && keyAge > TimeUnit.DAYS.toMillis(14)) {
 561             logger.debug("DistributionId {} was created at {} and is {} ms old (~{} days). Rotating.",
 562                     distributionId,
 563                     keyCreateTime,
 564                     keyAge,
 565                     TimeUnit.MILLISECONDS.toDays(keyAge));
 566             account.getSenderKeyStore().deleteOurKey(account.getAci(), distributionId);
 567         }
 568
 569         List<SignalServiceAddress> addresses = recipientIdList.stream()
 570                 .map(context.getRecipientHelper()::resolveSignalServiceAddress)
 571                 .toList();
 572         List<UnidentifiedAccess> unidentifiedAccesses = context.getUnidentifiedAccessHelper()
 573                 .getAccessFor(recipientIdList)
 574                 .stream()
 575                 .map(Optional::get)
 576                 .map(UnidentifiedAccessPair::getTargetUnidentifiedAccess)
 577                 .map(Optional::get)
 578                 .toList();
 579
 580         try {
 581             List<SendMessageResult> results = sender.send(distributionId,
 582                     addresses,
 583                     unidentifiedAccesses,
 584                     isRecipientUpdate);
 585
 586             final var successCount = results.stream().filter(SendMessageResult::isSuccess).count();
 587             logger.debug("Successfully sent using sender key to {}/{} sender key targets.",
 588                     successCount,
 589                     addresses.size());
 590
 591             return results;
 592         } catch (org.whispersystems.signalservice.api.crypto.UntrustedIdentityException e) {
 593             return null;
 594         } catch (InvalidUnidentifiedAccessHeaderException e) {
 595             logger.warn("Someone had a bad UD header. Falling back to legacy sends.", e);
 596             return null;
 597         } catch (NoSessionException e) {
 598             logger.warn("No session. Falling back to legacy sends.", e);
 599             account.getSenderKeyStore().deleteOurKey(account.getAci(), distributionId);
 600             return null;
 601         } catch (InvalidKeyException e) {
 602             logger.warn("Invalid key. Falling back to legacy sends.", e);
 603             account.getSenderKeyStore().deleteOurKey(account.getAci(), distributionId);
 604             return null;
 605         } catch (InvalidRegistrationIdException e) {
 606             logger.warn("Invalid registrationId. Falling back to legacy sends.", e);
 607             return null;
 608         } catch (NotFoundException e) {
 609             logger.warn("Someone was unregistered. Falling back to legacy sends.", e);
 610             return null;
 611         }
 612     }
 613
 614     private SendMessageResult sendMessage(
 615             SignalServiceDataMessage message, RecipientId recipientId
 616     ) {
 617         final var messageSendLogStore = account.getMessageSendLogStore();
 618         final var urgent = true;
 619         final var result = handleSendMessage(recipientId,
 620                 (messageSender, address, unidentifiedAccess) -> messageSender.sendDataMessage(address,
 621                         unidentifiedAccess,
 622                         ContentHint.RESENDABLE,
 623                         message,
 624                         SignalServiceMessageSender.IndividualSendEvents.EMPTY,
 625                         urgent,
 626                         false));
 627         messageSendLogStore.insertIfPossible(message.getTimestamp(), result, ContentHint.RESENDABLE, urgent);
 628         handleSendMessageResult(result);
 629         return result;
 630     }
 631
 632     private SendMessageResult handleSendMessage(RecipientId recipientId, SenderHandler s) {
 633         var messageSender = dependencies.getMessageSender();
 634
 635         var address = context.getRecipientHelper().resolveSignalServiceAddress(recipientId);
 636         try {
 637             try {
 638                 return s.send(messageSender, address, context.getUnidentifiedAccessHelper().getAccessFor(recipientId));
 639             } catch (UnregisteredUserException e) {
 640                 final RecipientId newRecipientId;
 641                 try {
 642                     newRecipientId = context.getRecipientHelper().refreshRegisteredUser(recipientId);
 643                 } catch (UnregisteredRecipientException ex) {
 644                     return SendMessageResult.unregisteredFailure(address);
 645                 }
 646                 address = context.getRecipientHelper().resolveSignalServiceAddress(newRecipientId);
 647                 return s.send(messageSender,
 648                         address,
 649                         context.getUnidentifiedAccessHelper().getAccessFor(newRecipientId));
 650             }
 651         } catch (UnregisteredUserException e) {
 652             return SendMessageResult.unregisteredFailure(address);
 653         } catch (ProofRequiredException e) {
 654             return SendMessageResult.proofRequiredFailure(address, e);
 655         } catch (RateLimitException e) {
 656             logger.warn("Sending failed due to rate limiting from the signal server: {}", e.getMessage());
 657             return SendMessageResult.rateLimitFailure(address, e);
 658         } catch (org.whispersystems.signalservice.api.crypto.UntrustedIdentityException e) {
 659             return SendMessageResult.identityFailure(address, e.getIdentityKey());
 660         } catch (IOException e) {
 661             logger.warn("Failed to send message due to IO exception: {}", e.getMessage());
 662             logger.debug("Exception", e);
 663             return SendMessageResult.networkFailure(address);
 664         }
 665     }
 666
 667     private SendMessageResult sendSelfMessage(SignalServiceDataMessage message) {
 668         var address = account.getSelfAddress();
 669         var transcript = new SentTranscriptMessage(Optional.of(address),
 670                 message.getTimestamp(),
 671                 Optional.of(message),
 672                 message.getExpiresInSeconds(),
 673                 Map.of(address.getServiceId(), true),
 674                 false,
 675                 Optional.empty(),
 676                 Set.of());
 677         var syncMessage = SignalServiceSyncMessage.forSentTranscript(transcript);
 678
 679         return sendSyncMessage(syncMessage);
 680     }
 681
 682     private void handleSendMessageResult(final SendMessageResult r) {
 683         if (r.isSuccess() && !r.getSuccess().isUnidentified()) {
 684             final var recipientId = context.getRecipientHelper().resolveRecipient(r.getAddress());
 685             final var profile = account.getProfileStore().getProfile(recipientId);
 686             if (profile != null && (
 687                     profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.ENABLED
 688                             || profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.UNRESTRICTED
 689             )) {
 690                 account.getProfileStore()
 691                         .storeProfile(recipientId,
 692                                 Profile.newBuilder(profile)
 693                                         .withUnidentifiedAccessMode(Profile.UnidentifiedAccessMode.UNKNOWN)
 694                                         .build());
 695             }
 696         }
 697         if (r.isUnregisteredFailure()) {
 698             final var recipientId = context.getRecipientHelper().resolveRecipient(r.getAddress());
 699             final var profile = account.getProfileStore().getProfile(recipientId);
 700             if (profile != null && (
 701                     profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.ENABLED
 702                             || profile.getUnidentifiedAccessMode() == Profile.UnidentifiedAccessMode.UNRESTRICTED
 703             )) {
 704                 account.getProfileStore()
 705                         .storeProfile(recipientId,
 706                                 Profile.newBuilder(profile)
 707                                         .withUnidentifiedAccessMode(Profile.UnidentifiedAccessMode.UNKNOWN)
 708                                         .build());
 709             }
 710         }
 711         if (r.getIdentityFailure() != null) {
 712             final var recipientId = context.getRecipientHelper().resolveRecipient(r.getAddress());
 713             context.getIdentityHelper()
 714                     .handleIdentityFailure(recipientId, r.getAddress().getServiceId(), r.getIdentityFailure());
 715         }
 716     }
 717
 718     interface SenderHandler {
 719
 720         SendMessageResult send(
 721                 SignalServiceMessageSender messageSender,
 722                 SignalServiceAddress address,
 723                 Optional<UnidentifiedAccessPair> unidentifiedAccess
 724         ) throws IOException, UnregisteredUserException, ProofRequiredException, RateLimitException, org.whispersystems.signalservice.api.crypto.UntrustedIdentityException;
 725     }
 726
 727     interface SenderKeySenderHandler {
 728
 729         List<SendMessageResult> send(
 730                 DistributionId distributionId,
 731                 List<SignalServiceAddress> recipients,
 732                 List<UnidentifiedAccess> unidentifiedAccess,
 733                 boolean isRecipientUpdate
 734         ) throws IOException, UntrustedIdentityException, NoSessionException, InvalidKeyException, InvalidRegistrationIdException;
 735     }
 736
 737     interface LegacySenderHandler {
 738
 739         List<SendMessageResult> send(
 740                 List<SignalServiceAddress> recipients,
 741                 List<Optional<UnidentifiedAccessPair>> unidentifiedAccess,
 742                 boolean isRecipientUpdate
 743         ) throws IOException, UntrustedIdentityException;
 744     }
 745 }