Examples with UnidentifiedAccess org.whispersystems.signalservice.api.crypto.UnidentifiedAccess used on opensource projects

Example 11 with UnidentifiedAccess

use of org.whispersystems.signalservice.api.crypto.UnidentifiedAccess in project Signal-Android by WhisperSystems.

the class GroupSendUtil method sendMessage.

/**
 * Handles all of the logic of sending to a group. Will do sender key sends and legacy 1:1 sends as-needed, and give you back a list of
 * {@link SendMessageResult}s just like we're used to.
 *
 * @param groupId The groupId of the group you're sending to, or null if you're sending to a collection of recipients not joined by a group.
 * @param isRecipientUpdate True if you've already sent this message to some recipients in the past, otherwise false.
 */
@WorkerThread
private static List<SendMessageResult> sendMessage(@NonNull Context context, @Nullable GroupId.V2 groupId, @Nullable MessageId relatedMessageId, @NonNull List<Recipient> allTargets, boolean isRecipientUpdate, @NonNull SendOperation sendOperation, @Nullable CancelationSignal cancelationSignal) throws IOException, UntrustedIdentityException {
    Log.i(TAG, "Starting group send. GroupId: " + (groupId != null ? groupId.toString() : "none") + ", RelatedMessageId: " + (relatedMessageId != null ? relatedMessageId.toString() : "none") + ", Targets: " + allTargets.size() + ", RecipientUpdate: " + isRecipientUpdate + ", Operation: " + sendOperation.getClass().getSimpleName());
    Set<Recipient> unregisteredTargets = allTargets.stream().filter(Recipient::isUnregistered).collect(Collectors.toSet());
    List<Recipient> registeredTargets = allTargets.stream().filter(r -> !unregisteredTargets.contains(r)).collect(Collectors.toList());
    RecipientData recipients = new RecipientData(context, registeredTargets);
    Optional<GroupRecord> groupRecord = groupId != null ? SignalDatabase.groups().getGroup(groupId) : Optional.absent();
    List<Recipient> senderKeyTargets = new LinkedList<>();
    List<Recipient> legacyTargets = new LinkedList<>();
    for (Recipient recipient : registeredTargets) {
        Optional<UnidentifiedAccessPair> access = recipients.getAccessPair(recipient.getId());
        boolean validMembership = groupRecord.isPresent() && groupRecord.get().getMembers().contains(recipient.getId());
        if (recipient.getSenderKeyCapability() == Recipient.Capability.SUPPORTED && recipient.hasServiceId() && access.isPresent() && access.get().getTargetUnidentifiedAccess().isPresent() && validMembership) {
            senderKeyTargets.add(recipient);
        } else {
            legacyTargets.add(recipient);
        }
    }
    if (groupId == null) {
        Log.i(TAG, "Recipients not in a group. Using legacy.");
        legacyTargets.addAll(senderKeyTargets);
        senderKeyTargets.clear();
    } else if (Recipient.self().getSenderKeyCapability() != Recipient.Capability.SUPPORTED) {
        Log.i(TAG, "All of our devices do not support sender key. Using legacy.");
        legacyTargets.addAll(senderKeyTargets);
        senderKeyTargets.clear();
    } else if (SignalStore.internalValues().removeSenderKeyMinimum()) {
        Log.i(TAG, "Sender key minimum removed. Using for " + senderKeyTargets.size() + " recipients.");
    } else if (senderKeyTargets.size() < 2) {
        Log.i(TAG, "Too few sender-key-capable users (" + senderKeyTargets.size() + "). Doing all legacy sends.");
        legacyTargets.addAll(senderKeyTargets);
        senderKeyTargets.clear();
    } else {
        Log.i(TAG, "Can use sender key for " + senderKeyTargets.size() + "/" + allTargets.size() + " recipients.");
    }
    if (relatedMessageId != null) {
        SignalLocalMetrics.GroupMessageSend.onSenderKeyStarted(relatedMessageId.getId());
    }
    List<SendMessageResult> allResults = new ArrayList<>(allTargets.size());
    SignalServiceMessageSender messageSender = ApplicationDependencies.getSignalServiceMessageSender();
    if (senderKeyTargets.size() > 0 && groupId != null) {
        DistributionId distributionId = SignalDatabase.groups().getOrCreateDistributionId(groupId);
        long keyCreateTime = SenderKeyUtil.getCreateTimeForOurKey(context, distributionId);
        long keyAge = System.currentTimeMillis() - keyCreateTime;
        if (keyCreateTime != -1 && keyAge > FeatureFlags.senderKeyMaxAge()) {
            Log.w(TAG, "DistributionId " + distributionId + " was created at " + keyCreateTime + " and is " + (keyAge) + " ms old (~" + TimeUnit.MILLISECONDS.toDays(keyAge) + " days). Rotating.");
            SenderKeyUtil.rotateOurKey(context, distributionId);
        }
        try {
            List<SignalServiceAddress> targets = senderKeyTargets.stream().map(r -> recipients.getAddress(r.getId())).collect(Collectors.toList());
            List<UnidentifiedAccess> access = senderKeyTargets.stream().map(r -> recipients.requireAccess(r.getId())).collect(Collectors.toList());
            List<SendMessageResult> results = sendOperation.sendWithSenderKey(messageSender, distributionId, targets, access, isRecipientUpdate);
            allResults.addAll(results);
            int successCount = (int) results.stream().filter(SendMessageResult::isSuccess).count();
            Log.d(TAG, "Successfully sent using sender key to " + successCount + "/" + targets.size() + " sender key targets.");
            if (sendOperation.shouldIncludeInMessageLog()) {
                SignalDatabase.messageLog().insertIfPossible(sendOperation.getSentTimestamp(), senderKeyTargets, results, sendOperation.getContentHint(), sendOperation.getRelatedMessageId());
            }
            if (relatedMessageId != null) {
                SignalLocalMetrics.GroupMessageSend.onSenderKeyMslInserted(relatedMessageId.getId());
            }
        } catch (InvalidUnidentifiedAccessHeaderException e) {
            Log.w(TAG, "Someone had a bad UD header. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        } catch (NoSessionException e) {
            Log.w(TAG, "No session. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        } catch (InvalidKeyException e) {
            Log.w(TAG, "Invalid key. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        } catch (InvalidRegistrationIdException e) {
            Log.w(TAG, "Invalid registrationId. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        } catch (NotFoundException e) {
            Log.w(TAG, "Someone was unregistered. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        }
    } else if (relatedMessageId != null) {
        SignalLocalMetrics.GroupMessageSend.onSenderKeyShared(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onSenderKeyEncrypted(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onSenderKeyMessageSent(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onSenderKeySyncSent(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onSenderKeyMslInserted(relatedMessageId.getId());
    }
    if (cancelationSignal != null && cancelationSignal.isCanceled()) {
        throw new CancelationException();
    }
    boolean onlyTargetIsSelfWithLinkedDevice = legacyTargets.isEmpty() && senderKeyTargets.isEmpty() && TextSecurePreferences.isMultiDevice(context);
    if (legacyTargets.size() > 0 || onlyTargetIsSelfWithLinkedDevice) {
        if (legacyTargets.size() > 0) {
            Log.i(TAG, "Need to do " + legacyTargets.size() + " legacy sends.");
        } else {
            Log.i(TAG, "Need to do a legacy send to send a sync message for a group of only ourselves.");
        }
        List<SignalServiceAddress> targets = legacyTargets.stream().map(r -> recipients.getAddress(r.getId())).collect(Collectors.toList());
        List<Optional<UnidentifiedAccessPair>> access = legacyTargets.stream().map(r -> recipients.getAccessPair(r.getId())).collect(Collectors.toList());
        boolean recipientUpdate = isRecipientUpdate || allResults.size() > 0;
        final MessageSendLogDatabase messageLogDatabase = SignalDatabase.messageLog();
        final AtomicLong entryId = new AtomicLong(-1);
        final boolean includeInMessageLog = sendOperation.shouldIncludeInMessageLog();
        List<SendMessageResult> results = sendOperation.sendLegacy(messageSender, targets, access, recipientUpdate, result -> {
            if (!includeInMessageLog) {
                return;
            }
            synchronized (entryId) {
                if (entryId.get() == -1) {
                    entryId.set(messageLogDatabase.insertIfPossible(recipients.requireRecipientId(result.getAddress()), sendOperation.getSentTimestamp(), result, sendOperation.getContentHint(), sendOperation.getRelatedMessageId()));
                } else {
                    messageLogDatabase.addRecipientToExistingEntryIfPossible(entryId.get(), recipients.requireRecipientId(result.getAddress()), result);
                }
            }
        }, cancelationSignal);
        allResults.addAll(results);
        int successCount = (int) results.stream().filter(SendMessageResult::isSuccess).count();
        Log.d(TAG, "Successfully sent using 1:1 to " + successCount + "/" + targets.size() + " legacy targets.");
    } else if (relatedMessageId != null) {
        SignalLocalMetrics.GroupMessageSend.onLegacyMessageSent(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onLegacySyncFinished(relatedMessageId.getId());
    }
    if (unregisteredTargets.size() > 0) {
        Log.w(TAG, "There are " + unregisteredTargets.size() + " unregistered targets. Including failure results.");
        List<SendMessageResult> unregisteredResults = unregisteredTargets.stream().filter(Recipient::hasServiceId).map(t -> SendMessageResult.unregisteredFailure(new SignalServiceAddress(t.requireServiceId(), t.getE164().orNull()))).collect(Collectors.toList());
        if (unregisteredResults.size() < unregisteredTargets.size()) {
            Log.w(TAG, "There are " + (unregisteredTargets.size() - unregisteredResults.size()) + " targets that have no UUID! Cannot report a failure for them.");
        }
        allResults.addAll(unregisteredResults);
    }
    return allResults;
}

Example 12 with UnidentifiedAccess

use of org.whispersystems.signalservice.api.crypto.UnidentifiedAccess in project Signal-Android by signalapp.

the class SignalServiceMessageSender method sendGroupMessage.

/**
 * Will send a message using sender keys to all of the specified recipients. It is assumed that
 * all of the recipients have UUIDs.
 *
 * This method will handle sending out SenderKeyDistributionMessages as necessary.
 */
private List<SendMessageResult> sendGroupMessage(DistributionId distributionId, List<SignalServiceAddress> recipients, List<UnidentifiedAccess> unidentifiedAccess, long timestamp, Content content, ContentHint contentHint, byte[] groupId, boolean online, SenderKeyGroupEvents sendEvents) throws IOException, UntrustedIdentityException, NoSessionException, InvalidKeyException, InvalidRegistrationIdException {
    if (recipients.isEmpty()) {
        Log.w(TAG, "[sendGroupMessage][" + timestamp + "] Empty recipient list!");
        return Collections.emptyList();
    }
    Preconditions.checkArgument(recipients.size() == unidentifiedAccess.size(), "[" + timestamp + "] Unidentified access mismatch!");
    Map<ServiceId, UnidentifiedAccess> accessBySid = new HashMap<>();
    Iterator<SignalServiceAddress> addressIterator = recipients.iterator();
    Iterator<UnidentifiedAccess> accessIterator = unidentifiedAccess.iterator();
    while (addressIterator.hasNext()) {
        accessBySid.put(addressIterator.next().getServiceId(), accessIterator.next());
    }
    for (int i = 0; i < RETRY_COUNT; i++) {
        GroupTargetInfo targetInfo = buildGroupTargetInfo(recipients);
        Set<SignalProtocolAddress> sharedWith = store.getSenderKeySharedWith(distributionId);
        List<SignalServiceAddress> needsSenderKey = targetInfo.destinations.stream().filter(a -> !sharedWith.contains(a)).map(a -> ServiceId.parseOrThrow(a.getName())).distinct().map(SignalServiceAddress::new).collect(Collectors.toList());
        if (needsSenderKey.size() > 0) {
            Log.i(TAG, "[sendGroupMessage][" + timestamp + "] Need to send the distribution message to " + needsSenderKey.size() + " addresses.");
            SenderKeyDistributionMessage message = getOrCreateNewGroupSession(distributionId);
            List<Optional<UnidentifiedAccessPair>> access = needsSenderKey.stream().map(r -> {
                UnidentifiedAccess targetAccess = accessBySid.get(r.getServiceId());
                return Optional.of(new UnidentifiedAccessPair(targetAccess, targetAccess));
            }).collect(Collectors.toList());
            List<SendMessageResult> results = sendSenderKeyDistributionMessage(distributionId, needsSenderKey, access, message, groupId);
            List<SignalServiceAddress> successes = results.stream().filter(SendMessageResult::isSuccess).map(SendMessageResult::getAddress).collect(Collectors.toList());
            Set<String> successSids = successes.stream().map(a -> a.getServiceId().toString()).collect(Collectors.toSet());
            Set<SignalProtocolAddress> successAddresses = targetInfo.destinations.stream().filter(a -> successSids.contains(a.getName())).collect(Collectors.toSet());
            store.markSenderKeySharedWith(distributionId, successAddresses);
            Log.i(TAG, "[sendGroupMessage][" + timestamp + "] Successfully sent sender keys to " + successes.size() + "/" + needsSenderKey.size() + " recipients.");
            int failureCount = results.size() - successes.size();
            if (failureCount > 0) {
                Log.w(TAG, "[sendGroupMessage][" + timestamp + "] Failed to send sender keys to " + failureCount + " recipients. Sending back failed results now.");
                List<SendMessageResult> trueFailures = results.stream().filter(r -> !r.isSuccess()).collect(Collectors.toList());
                Set<ServiceId> failedAddresses = trueFailures.stream().map(result -> result.getAddress().getServiceId()).collect(Collectors.toSet());
                List<SendMessageResult> fakeNetworkFailures = recipients.stream().filter(r -> !failedAddresses.contains(r.getServiceId())).map(SendMessageResult::networkFailure).collect(Collectors.toList());
                List<SendMessageResult> modifiedResults = new LinkedList<>();
                modifiedResults.addAll(trueFailures);
                modifiedResults.addAll(fakeNetworkFailures);
                return modifiedResults;
            } else {
                targetInfo = buildGroupTargetInfo(recipients);
            }
        }
        sendEvents.onSenderKeyShared();
        SignalServiceCipher cipher = new SignalServiceCipher(localAddress, localDeviceId, store, sessionLock, null);
        SenderCertificate senderCertificate = unidentifiedAccess.get(0).getUnidentifiedCertificate();
        byte[] ciphertext;
        try {
            ciphertext = cipher.encryptForGroup(distributionId, targetInfo.destinations, senderCertificate, content.toByteArray(), contentHint, groupId);
        } catch (org.whispersystems.libsignal.UntrustedIdentityException e) {
            throw new UntrustedIdentityException("Untrusted during group encrypt", e.getName(), e.getUntrustedIdentity());
        }
        sendEvents.onMessageEncrypted();
        byte[] joinedUnidentifiedAccess = new byte[16];
        for (UnidentifiedAccess access : unidentifiedAccess) {
            joinedUnidentifiedAccess = ByteArrayUtil.xor(joinedUnidentifiedAccess, access.getUnidentifiedAccessKey());
        }
        try {
            try {
                SendGroupMessageResponse response = new MessagingService.SendResponseProcessor<>(messagingService.sendToGroup(ciphertext, joinedUnidentifiedAccess, timestamp, online).blockingGet()).getResultOrThrow();
                return transformGroupResponseToMessageResults(targetInfo.devices, response, content);
            } catch (InvalidUnidentifiedAccessHeaderException | NotFoundException | GroupMismatchedDevicesException | GroupStaleDevicesException e) {
                // Non-technical failures shouldn't be retried with socket
                throw e;
            } catch (WebSocketUnavailableException e) {
                Log.i(TAG, "[sendGroupMessage][" + timestamp + "] Pipe unavailable, falling back... (" + e.getClass().getSimpleName() + ": " + e.getMessage() + ")");
            } catch (IOException e) {
                Log.w(TAG, "[sendGroupMessage][" + timestamp + "] Pipe failed, falling back... (" + e.getClass().getSimpleName() + ": " + e.getMessage() + ")");
            }
            SendGroupMessageResponse response = socket.sendGroupMessage(ciphertext, joinedUnidentifiedAccess, timestamp, online);
            return transformGroupResponseToMessageResults(targetInfo.devices, response, content);
        } catch (GroupMismatchedDevicesException e) {
            Log.w(TAG, "[sendGroupMessage][" + timestamp + "] Handling mismatched devices. (" + e.getMessage() + ")");
            for (GroupMismatchedDevices mismatched : e.getMismatchedDevices()) {
                SignalServiceAddress address = new SignalServiceAddress(ACI.parseOrThrow(mismatched.getUuid()), Optional.absent());
                handleMismatchedDevices(socket, address, mismatched.getDevices());
            }
        } catch (GroupStaleDevicesException e) {
            Log.w(TAG, "[sendGroupMessage][" + timestamp + "] Handling stale devices. (" + e.getMessage() + ")");
            for (GroupStaleDevices stale : e.getStaleDevices()) {
                SignalServiceAddress address = new SignalServiceAddress(ACI.parseOrThrow(stale.getUuid()), Optional.absent());
                handleStaleDevices(address, stale.getDevices());
            }
        }
        Log.w(TAG, "[sendGroupMessage][" + timestamp + "] Attempt failed (i = " + i + ")");
    }
    throw new IOException("Failed to resolve conflicts after " + RETRY_COUNT + " attempts!");
}

Example 13 with UnidentifiedAccess

use of org.whispersystems.signalservice.api.crypto.UnidentifiedAccess in project Signal-Android by signalapp.

the class SignalServiceMessageSender method resendContent.

/**
 * Resend a previously-sent message.
 */
public SendMessageResult resendContent(SignalServiceAddress address, Optional<UnidentifiedAccessPair> unidentifiedAccess, long timestamp, Content content, ContentHint contentHint, Optional<byte[]> groupId) throws UntrustedIdentityException, IOException {
    EnvelopeContent envelopeContent = EnvelopeContent.encrypted(content, contentHint, groupId);
    Optional<UnidentifiedAccess> access = unidentifiedAccess.isPresent() ? unidentifiedAccess.get().getTargetUnidentifiedAccess() : Optional.absent();
    return sendMessage(address, access, timestamp, envelopeContent, false, null);
}

Example 14 with UnidentifiedAccess

use of org.whispersystems.signalservice.api.crypto.UnidentifiedAccess in project Signal-Android by signalapp.

the class UnidentifiedAccessUtil method getAccessFor.

@WorkerThread
public static List<Optional<UnidentifiedAccessPair>> getAccessFor(@NonNull Context context, @NonNull List<Recipient> recipients, boolean log) {
    byte[] ourUnidentifiedAccessKey = UnidentifiedAccess.deriveAccessKeyFrom(ProfileKeyUtil.getSelfProfileKey());
    if (TextSecurePreferences.isUniversalUnidentifiedAccess(context)) {
        ourUnidentifiedAccessKey = UNRESTRICTED_KEY;
    }
    List<Optional<UnidentifiedAccessPair>> access = new ArrayList<>(recipients.size());
    Map<CertificateType, Integer> typeCounts = new HashMap<>();
    for (Recipient recipient : recipients) {
        byte[] theirUnidentifiedAccessKey = getTargetUnidentifiedAccessKey(recipient);
        CertificateType certificateType = getUnidentifiedAccessCertificateType(recipient);
        byte[] ourUnidentifiedAccessCertificate = SignalStore.certificateValues().getUnidentifiedAccessCertificate(certificateType);
        int typeCount = Util.getOrDefault(typeCounts, certificateType, 0);
        typeCount++;
        typeCounts.put(certificateType, typeCount);
        if (theirUnidentifiedAccessKey != null && ourUnidentifiedAccessCertificate != null) {
            try {
                access.add(Optional.of(new UnidentifiedAccessPair(new UnidentifiedAccess(theirUnidentifiedAccessKey, ourUnidentifiedAccessCertificate), new UnidentifiedAccess(ourUnidentifiedAccessKey, ourUnidentifiedAccessCertificate))));
            } catch (InvalidCertificateException e) {
                Log.w(TAG, e);
                access.add(Optional.absent());
            }
        } else {
            access.add(Optional.absent());
        }
    }
    int unidentifiedCount = Stream.of(access).filter(Optional::isPresent).toList().size();
    int otherCount = access.size() - unidentifiedCount;
    if (log) {
        Log.i(TAG, "Unidentified: " + unidentifiedCount + ", Other: " + otherCount + ". Types: " + typeCounts);
    }
    return access;
}

Example 15 with UnidentifiedAccess

use of org.whispersystems.signalservice.api.crypto.UnidentifiedAccess in project Signal-Android by signalapp.

the class GroupSendUtil method sendMessage.

/**
 * Handles all of the logic of sending to a group. Will do sender key sends and legacy 1:1 sends as-needed, and give you back a list of
 * {@link SendMessageResult}s just like we're used to.
 *
 * @param groupId The groupId of the group you're sending to, or null if you're sending to a collection of recipients not joined by a group.
 * @param isRecipientUpdate True if you've already sent this message to some recipients in the past, otherwise false.
 */
@WorkerThread
private static List<SendMessageResult> sendMessage(@NonNull Context context, @Nullable GroupId.V2 groupId, @Nullable MessageId relatedMessageId, @NonNull List<Recipient> allTargets, boolean isRecipientUpdate, @NonNull SendOperation sendOperation, @Nullable CancelationSignal cancelationSignal) throws IOException, UntrustedIdentityException {
    Log.i(TAG, "Starting group send. GroupId: " + (groupId != null ? groupId.toString() : "none") + ", RelatedMessageId: " + (relatedMessageId != null ? relatedMessageId.toString() : "none") + ", Targets: " + allTargets.size() + ", RecipientUpdate: " + isRecipientUpdate + ", Operation: " + sendOperation.getClass().getSimpleName());
    Set<Recipient> unregisteredTargets = allTargets.stream().filter(Recipient::isUnregistered).collect(Collectors.toSet());
    List<Recipient> registeredTargets = allTargets.stream().filter(r -> !unregisteredTargets.contains(r)).collect(Collectors.toList());
    RecipientData recipients = new RecipientData(context, registeredTargets);
    Optional<GroupRecord> groupRecord = groupId != null ? SignalDatabase.groups().getGroup(groupId) : Optional.absent();
    List<Recipient> senderKeyTargets = new LinkedList<>();
    List<Recipient> legacyTargets = new LinkedList<>();
    for (Recipient recipient : registeredTargets) {
        Optional<UnidentifiedAccessPair> access = recipients.getAccessPair(recipient.getId());
        boolean validMembership = groupRecord.isPresent() && groupRecord.get().getMembers().contains(recipient.getId());
        if (recipient.getSenderKeyCapability() == Recipient.Capability.SUPPORTED && recipient.hasServiceId() && access.isPresent() && access.get().getTargetUnidentifiedAccess().isPresent() && validMembership) {
            senderKeyTargets.add(recipient);
        } else {
            legacyTargets.add(recipient);
        }
    }
    if (groupId == null) {
        Log.i(TAG, "Recipients not in a group. Using legacy.");
        legacyTargets.addAll(senderKeyTargets);
        senderKeyTargets.clear();
    } else if (Recipient.self().getSenderKeyCapability() != Recipient.Capability.SUPPORTED) {
        Log.i(TAG, "All of our devices do not support sender key. Using legacy.");
        legacyTargets.addAll(senderKeyTargets);
        senderKeyTargets.clear();
    } else if (SignalStore.internalValues().removeSenderKeyMinimum()) {
        Log.i(TAG, "Sender key minimum removed. Using for " + senderKeyTargets.size() + " recipients.");
    } else if (senderKeyTargets.size() < 2) {
        Log.i(TAG, "Too few sender-key-capable users (" + senderKeyTargets.size() + "). Doing all legacy sends.");
        legacyTargets.addAll(senderKeyTargets);
        senderKeyTargets.clear();
    } else {
        Log.i(TAG, "Can use sender key for " + senderKeyTargets.size() + "/" + allTargets.size() + " recipients.");
    }
    if (relatedMessageId != null) {
        SignalLocalMetrics.GroupMessageSend.onSenderKeyStarted(relatedMessageId.getId());
    }
    List<SendMessageResult> allResults = new ArrayList<>(allTargets.size());
    SignalServiceMessageSender messageSender = ApplicationDependencies.getSignalServiceMessageSender();
    if (senderKeyTargets.size() > 0 && groupId != null) {
        DistributionId distributionId = SignalDatabase.groups().getOrCreateDistributionId(groupId);
        long keyCreateTime = SenderKeyUtil.getCreateTimeForOurKey(context, distributionId);
        long keyAge = System.currentTimeMillis() - keyCreateTime;
        if (keyCreateTime != -1 && keyAge > FeatureFlags.senderKeyMaxAge()) {
            Log.w(TAG, "DistributionId " + distributionId + " was created at " + keyCreateTime + " and is " + (keyAge) + " ms old (~" + TimeUnit.MILLISECONDS.toDays(keyAge) + " days). Rotating.");
            SenderKeyUtil.rotateOurKey(context, distributionId);
        }
        try {
            List<SignalServiceAddress> targets = senderKeyTargets.stream().map(r -> recipients.getAddress(r.getId())).collect(Collectors.toList());
            List<UnidentifiedAccess> access = senderKeyTargets.stream().map(r -> recipients.requireAccess(r.getId())).collect(Collectors.toList());
            List<SendMessageResult> results = sendOperation.sendWithSenderKey(messageSender, distributionId, targets, access, isRecipientUpdate);
            allResults.addAll(results);
            int successCount = (int) results.stream().filter(SendMessageResult::isSuccess).count();
            Log.d(TAG, "Successfully sent using sender key to " + successCount + "/" + targets.size() + " sender key targets.");
            if (sendOperation.shouldIncludeInMessageLog()) {
                SignalDatabase.messageLog().insertIfPossible(sendOperation.getSentTimestamp(), senderKeyTargets, results, sendOperation.getContentHint(), sendOperation.getRelatedMessageId());
            }
            if (relatedMessageId != null) {
                SignalLocalMetrics.GroupMessageSend.onSenderKeyMslInserted(relatedMessageId.getId());
            }
        } catch (InvalidUnidentifiedAccessHeaderException e) {
            Log.w(TAG, "Someone had a bad UD header. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        } catch (NoSessionException e) {
            Log.w(TAG, "No session. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        } catch (InvalidKeyException e) {
            Log.w(TAG, "Invalid key. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        } catch (InvalidRegistrationIdException e) {
            Log.w(TAG, "Invalid registrationId. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        } catch (NotFoundException e) {
            Log.w(TAG, "Someone was unregistered. Falling back to legacy sends.", e);
            legacyTargets.addAll(senderKeyTargets);
        }
    } else if (relatedMessageId != null) {
        SignalLocalMetrics.GroupMessageSend.onSenderKeyShared(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onSenderKeyEncrypted(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onSenderKeyMessageSent(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onSenderKeySyncSent(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onSenderKeyMslInserted(relatedMessageId.getId());
    }
    if (cancelationSignal != null && cancelationSignal.isCanceled()) {
        throw new CancelationException();
    }
    boolean onlyTargetIsSelfWithLinkedDevice = legacyTargets.isEmpty() && senderKeyTargets.isEmpty() && TextSecurePreferences.isMultiDevice(context);
    if (legacyTargets.size() > 0 || onlyTargetIsSelfWithLinkedDevice) {
        if (legacyTargets.size() > 0) {
            Log.i(TAG, "Need to do " + legacyTargets.size() + " legacy sends.");
        } else {
            Log.i(TAG, "Need to do a legacy send to send a sync message for a group of only ourselves.");
        }
        List<SignalServiceAddress> targets = legacyTargets.stream().map(r -> recipients.getAddress(r.getId())).collect(Collectors.toList());
        List<Optional<UnidentifiedAccessPair>> access = legacyTargets.stream().map(r -> recipients.getAccessPair(r.getId())).collect(Collectors.toList());
        boolean recipientUpdate = isRecipientUpdate || allResults.size() > 0;
        final MessageSendLogDatabase messageLogDatabase = SignalDatabase.messageLog();
        final AtomicLong entryId = new AtomicLong(-1);
        final boolean includeInMessageLog = sendOperation.shouldIncludeInMessageLog();
        List<SendMessageResult> results = sendOperation.sendLegacy(messageSender, targets, access, recipientUpdate, result -> {
            if (!includeInMessageLog) {
                return;
            }
            synchronized (entryId) {
                if (entryId.get() == -1) {
                    entryId.set(messageLogDatabase.insertIfPossible(recipients.requireRecipientId(result.getAddress()), sendOperation.getSentTimestamp(), result, sendOperation.getContentHint(), sendOperation.getRelatedMessageId()));
                } else {
                    messageLogDatabase.addRecipientToExistingEntryIfPossible(entryId.get(), recipients.requireRecipientId(result.getAddress()), result);
                }
            }
        }, cancelationSignal);
        allResults.addAll(results);
        int successCount = (int) results.stream().filter(SendMessageResult::isSuccess).count();
        Log.d(TAG, "Successfully sent using 1:1 to " + successCount + "/" + targets.size() + " legacy targets.");
    } else if (relatedMessageId != null) {
        SignalLocalMetrics.GroupMessageSend.onLegacyMessageSent(relatedMessageId.getId());
        SignalLocalMetrics.GroupMessageSend.onLegacySyncFinished(relatedMessageId.getId());
    }
    if (unregisteredTargets.size() > 0) {
        Log.w(TAG, "There are " + unregisteredTargets.size() + " unregistered targets. Including failure results.");
        List<SendMessageResult> unregisteredResults = unregisteredTargets.stream().filter(Recipient::hasServiceId).map(t -> SendMessageResult.unregisteredFailure(new SignalServiceAddress(t.requireServiceId(), t.getE164().orNull()))).collect(Collectors.toList());
        if (unregisteredResults.size() < unregisteredTargets.size()) {
            Log.w(TAG, "There are " + (unregisteredTargets.size() - unregisteredResults.size()) + " targets that have no UUID! Cannot report a failure for them.");
        }
        allResults.addAll(unregisteredResults);
    }
    return allResults;
}