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