Examples with SignalServiceAddress org.whispersystems.signalservice.api.push.SignalServiceAddress used on opensource projects

Example 26 with SignalServiceAddress

use of org.whispersystems.signalservice.api.push.SignalServiceAddress in project Signal-Android by WhisperSystems.

the class SignalServiceContent method createSynchronizeMessage.

private static SignalServiceSyncMessage createSynchronizeMessage(SignalServiceMetadata metadata, SignalServiceProtos.SyncMessage content) throws ProtocolInvalidKeyException, UnsupportedDataMessageException, InvalidMessageStructureException {
    if (content.hasSent()) {
        Map<SignalServiceAddress, Boolean> unidentifiedStatuses = new HashMap<>();
        SignalServiceProtos.SyncMessage.Sent sentContent = content.getSent();
        SignalServiceDataMessage dataMessage = createSignalServiceMessage(metadata, sentContent.getMessage());
        Optional<SignalServiceAddress> address = SignalServiceAddress.isValidAddress(sentContent.getDestinationUuid(), sentContent.getDestinationE164()) ? Optional.of(new SignalServiceAddress(ACI.parseOrThrow(sentContent.getDestinationUuid()), sentContent.getDestinationE164())) : Optional.<SignalServiceAddress>absent();
        if (!address.isPresent() && !dataMessage.getGroupContext().isPresent()) {
            throw new InvalidMessageStructureException("SyncMessage missing both destination and group ID!");
        }
        for (SignalServiceProtos.SyncMessage.Sent.UnidentifiedDeliveryStatus status : sentContent.getUnidentifiedStatusList()) {
            if (SignalServiceAddress.isValidAddress(status.getDestinationUuid(), status.getDestinationE164())) {
                SignalServiceAddress recipient = new SignalServiceAddress(ACI.parseOrThrow(status.getDestinationUuid()), status.getDestinationE164());
                unidentifiedStatuses.put(recipient, status.getUnidentified());
            } else {
                Log.w(TAG, "Encountered an invalid UnidentifiedDeliveryStatus in a SentTranscript! Ignoring.");
            }
        }
        return SignalServiceSyncMessage.forSentTranscript(new SentTranscriptMessage(address, sentContent.getTimestamp(), dataMessage, sentContent.getExpirationStartTimestamp(), unidentifiedStatuses, sentContent.getIsRecipientUpdate()));
    }
    if (content.hasRequest()) {
        return SignalServiceSyncMessage.forRequest(new RequestMessage(content.getRequest()));
    }
    if (content.getReadList().size() > 0) {
        List<ReadMessage> readMessages = new LinkedList<>();
        for (SignalServiceProtos.SyncMessage.Read read : content.getReadList()) {
            if (SignalServiceAddress.isValidAddress(read.getSenderUuid(), read.getSenderE164())) {
                SignalServiceAddress address = new SignalServiceAddress(ACI.parseOrThrow(read.getSenderUuid()), read.getSenderE164());
                readMessages.add(new ReadMessage(address, read.getTimestamp()));
            } else {
                Log.w(TAG, "Encountered an invalid ReadMessage! Ignoring.");
            }
        }
        return SignalServiceSyncMessage.forRead(readMessages);
    }
    if (content.getViewedList().size() > 0) {
        List<ViewedMessage> viewedMessages = new LinkedList<>();
        for (SignalServiceProtos.SyncMessage.Viewed viewed : content.getViewedList()) {
            if (SignalServiceAddress.isValidAddress(viewed.getSenderUuid(), viewed.getSenderE164())) {
                SignalServiceAddress address = new SignalServiceAddress(ACI.parseOrThrow(viewed.getSenderUuid()), viewed.getSenderE164());
                viewedMessages.add(new ViewedMessage(address, viewed.getTimestamp()));
            } else {
                Log.w(TAG, "Encountered an invalid ReadMessage! Ignoring.");
            }
        }
        return SignalServiceSyncMessage.forViewed(viewedMessages);
    }
    if (content.hasViewOnceOpen()) {
        if (SignalServiceAddress.isValidAddress(content.getViewOnceOpen().getSenderUuid(), content.getViewOnceOpen().getSenderE164())) {
            SignalServiceAddress address = new SignalServiceAddress(ACI.parseOrThrow(content.getViewOnceOpen().getSenderUuid()), content.getViewOnceOpen().getSenderE164());
            ViewOnceOpenMessage timerRead = new ViewOnceOpenMessage(address, content.getViewOnceOpen().getTimestamp());
            return SignalServiceSyncMessage.forViewOnceOpen(timerRead);
        } else {
            throw new InvalidMessageStructureException("ViewOnceOpen message has no sender!");
        }
    }
    if (content.hasVerified()) {
        if (SignalServiceAddress.isValidAddress(content.getVerified().getDestinationUuid(), content.getVerified().getDestinationE164())) {
            try {
                SignalServiceProtos.Verified verified = content.getVerified();
                SignalServiceAddress destination = new SignalServiceAddress(ACI.parseOrThrow(verified.getDestinationUuid()), verified.getDestinationE164());
                IdentityKey identityKey = new IdentityKey(verified.getIdentityKey().toByteArray(), 0);
                VerifiedMessage.VerifiedState verifiedState;
                if (verified.getState() == SignalServiceProtos.Verified.State.DEFAULT) {
                    verifiedState = VerifiedMessage.VerifiedState.DEFAULT;
                } else if (verified.getState() == SignalServiceProtos.Verified.State.VERIFIED) {
                    verifiedState = VerifiedMessage.VerifiedState.VERIFIED;
                } else if (verified.getState() == SignalServiceProtos.Verified.State.UNVERIFIED) {
                    verifiedState = VerifiedMessage.VerifiedState.UNVERIFIED;
                } else {
                    throw new InvalidMessageStructureException("Unknown state: " + verified.getState().getNumber(), metadata.getSender().getIdentifier(), metadata.getSenderDevice());
                }
                return SignalServiceSyncMessage.forVerified(new VerifiedMessage(destination, identityKey, verifiedState, System.currentTimeMillis()));
            } catch (InvalidKeyException e) {
                throw new ProtocolInvalidKeyException(e, metadata.getSender().getIdentifier(), metadata.getSenderDevice());
            }
        } else {
            throw new InvalidMessageStructureException("Verified message has no sender!");
        }
    }
    if (content.getStickerPackOperationList().size() > 0) {
        List<StickerPackOperationMessage> operations = new LinkedList<>();
        for (SignalServiceProtos.SyncMessage.StickerPackOperation operation : content.getStickerPackOperationList()) {
            byte[] packId = operation.hasPackId() ? operation.getPackId().toByteArray() : null;
            byte[] packKey = operation.hasPackKey() ? operation.getPackKey().toByteArray() : null;
            StickerPackOperationMessage.Type type = null;
            if (operation.hasType()) {
                switch(operation.getType()) {
                    case INSTALL:
                        type = StickerPackOperationMessage.Type.INSTALL;
                        break;
                    case REMOVE:
                        type = StickerPackOperationMessage.Type.REMOVE;
                        break;
                }
            }
            operations.add(new StickerPackOperationMessage(packId, packKey, type));
        }
        return SignalServiceSyncMessage.forStickerPackOperations(operations);
    }
    if (content.hasBlocked()) {
        List<String> numbers = content.getBlocked().getNumbersList();
        List<String> uuids = content.getBlocked().getUuidsList();
        List<SignalServiceAddress> addresses = new ArrayList<>(numbers.size() + uuids.size());
        List<byte[]> groupIds = new ArrayList<>(content.getBlocked().getGroupIdsList().size());
        for (String uuid : uuids) {
            Optional<SignalServiceAddress> address = SignalServiceAddress.fromRaw(uuid, null);
            if (address.isPresent()) {
                addresses.add(address.get());
            }
        }
        for (ByteString groupId : content.getBlocked().getGroupIdsList()) {
            groupIds.add(groupId.toByteArray());
        }
        return SignalServiceSyncMessage.forBlocked(new BlockedListMessage(addresses, groupIds));
    }
    if (content.hasConfiguration()) {
        Boolean readReceipts = content.getConfiguration().hasReadReceipts() ? content.getConfiguration().getReadReceipts() : null;
        Boolean unidentifiedDeliveryIndicators = content.getConfiguration().hasUnidentifiedDeliveryIndicators() ? content.getConfiguration().getUnidentifiedDeliveryIndicators() : null;
        Boolean typingIndicators = content.getConfiguration().hasTypingIndicators() ? content.getConfiguration().getTypingIndicators() : null;
        Boolean linkPreviews = content.getConfiguration().hasLinkPreviews() ? content.getConfiguration().getLinkPreviews() : null;
        return SignalServiceSyncMessage.forConfiguration(new ConfigurationMessage(Optional.fromNullable(readReceipts), Optional.fromNullable(unidentifiedDeliveryIndicators), Optional.fromNullable(typingIndicators), Optional.fromNullable(linkPreviews)));
    }
    if (content.hasFetchLatest() && content.getFetchLatest().hasType()) {
        switch(content.getFetchLatest().getType()) {
            case LOCAL_PROFILE:
                return SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.LOCAL_PROFILE);
            case STORAGE_MANIFEST:
                return SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.STORAGE_MANIFEST);
            case SUBSCRIPTION_STATUS:
                return SignalServiceSyncMessage.forFetchLatest(SignalServiceSyncMessage.FetchType.SUBSCRIPTION_STATUS);
        }
    }
    if (content.hasMessageRequestResponse()) {
        MessageRequestResponseMessage.Type type;
        switch(content.getMessageRequestResponse().getType()) {
            case ACCEPT:
                type = MessageRequestResponseMessage.Type.ACCEPT;
                break;
            case DELETE:
                type = MessageRequestResponseMessage.Type.DELETE;
                break;
            case BLOCK:
                type = MessageRequestResponseMessage.Type.BLOCK;
                break;
            case BLOCK_AND_DELETE:
                type = MessageRequestResponseMessage.Type.BLOCK_AND_DELETE;
                break;
            default:
                type = MessageRequestResponseMessage.Type.UNKNOWN;
                break;
        }
        MessageRequestResponseMessage responseMessage;
        if (content.getMessageRequestResponse().hasGroupId()) {
            responseMessage = MessageRequestResponseMessage.forGroup(content.getMessageRequestResponse().getGroupId().toByteArray(), type);
        } else {
            Optional<SignalServiceAddress> address = SignalServiceAddress.fromRaw(content.getMessageRequestResponse().getThreadUuid(), content.getMessageRequestResponse().getThreadE164());
            if (address.isPresent()) {
                responseMessage = MessageRequestResponseMessage.forIndividual(address.get(), type);
            } else {
                throw new InvalidMessageStructureException("Message request response has an invalid thread identifier!");
            }
        }
        return SignalServiceSyncMessage.forMessageRequestResponse(responseMessage);
    }
    if (content.hasOutgoingPayment()) {
        SignalServiceProtos.SyncMessage.OutgoingPayment outgoingPayment = content.getOutgoingPayment();
        switch(outgoingPayment.getPaymentDetailCase()) {
            case MOBILECOIN:
                {
                    SignalServiceProtos.SyncMessage.OutgoingPayment.MobileCoin mobileCoin = outgoingPayment.getMobileCoin();
                    Money.MobileCoin amount = Money.picoMobileCoin(mobileCoin.getAmountPicoMob());
                    Money.MobileCoin fee = Money.picoMobileCoin(mobileCoin.getFeePicoMob());
                    ByteString address = mobileCoin.getRecipientAddress();
                    Optional<SignalServiceAddress> recipient = SignalServiceAddress.fromRaw(outgoingPayment.getRecipientUuid(), null);
                    return SignalServiceSyncMessage.forOutgoingPayment(new OutgoingPaymentMessage(recipient, amount, fee, mobileCoin.getReceipt(), mobileCoin.getLedgerBlockIndex(), mobileCoin.getLedgerBlockTimestamp(), address.isEmpty() ? Optional.absent() : Optional.of(address.toByteArray()), Optional.of(outgoingPayment.getNote()), mobileCoin.getOutputPublicKeysList(), mobileCoin.getSpentKeyImagesList()));
                }
            default:
                return SignalServiceSyncMessage.empty();
        }
    }
    if (content.hasKeys() && content.getKeys().hasStorageService()) {
        byte[] storageKey = content.getKeys().getStorageService().toByteArray();
        return SignalServiceSyncMessage.forKeys(new KeysMessage(Optional.of(new StorageKey(storageKey))));
    }
    if (content.hasContacts()) {
        return SignalServiceSyncMessage.forContacts(new ContactsMessage(createAttachmentPointer(content.getContacts().getBlob()), content.getContacts().getComplete()));
    }
    return SignalServiceSyncMessage.empty();
}

Example 27 with SignalServiceAddress

use of org.whispersystems.signalservice.api.push.SignalServiceAddress in project Signal-Android by WhisperSystems.

the class SignalServiceContent method createReaction.

private static SignalServiceDataMessage.Reaction createReaction(SignalServiceProtos.DataMessage content) {
    if (!content.hasReaction() || !content.getReaction().hasEmoji() || !content.getReaction().hasTargetAuthorUuid() || !content.getReaction().hasTargetSentTimestamp()) {
        return null;
    }
    SignalServiceProtos.DataMessage.Reaction reaction = content.getReaction();
    ACI uuid = ACI.parseOrNull(reaction.getTargetAuthorUuid());
    if (uuid == null) {
        Log.w(TAG, "Cannot parse author UUID on reaction");
        return null;
    }
    return new SignalServiceDataMessage.Reaction(reaction.getEmoji(), reaction.getRemove(), new SignalServiceAddress(uuid), reaction.getTargetSentTimestamp());
}

Example 28 with SignalServiceAddress

use of org.whispersystems.signalservice.api.push.SignalServiceAddress in project Signal-Android by WhisperSystems.

the class SignalServiceContent method createFromProto.

/**
 * Takes internal protobuf serialization format and processes it into a {@link SignalServiceContent}.
 */
public static SignalServiceContent createFromProto(SignalServiceContentProto serviceContentProto) throws ProtocolInvalidMessageException, ProtocolInvalidKeyException, UnsupportedDataMessageException, InvalidMessageStructureException {
    SignalServiceMetadata metadata = SignalServiceMetadataProtobufSerializer.fromProtobuf(serviceContentProto.getMetadata());
    SignalServiceAddress localAddress = SignalServiceAddressProtobufSerializer.fromProtobuf(serviceContentProto.getLocalAddress());
    if (serviceContentProto.getDataCase() == SignalServiceContentProto.DataCase.LEGACYDATAMESSAGE) {
        SignalServiceProtos.DataMessage message = serviceContentProto.getLegacyDataMessage();
        return new SignalServiceContent(createSignalServiceMessage(metadata, message), Optional.absent(), metadata.getSender(), metadata.getSenderDevice(), metadata.getTimestamp(), metadata.getServerReceivedTimestamp(), metadata.getServerDeliveredTimestamp(), metadata.isNeedsReceipt(), metadata.getServerGuid(), metadata.getGroupId(), serviceContentProto);
    } else if (serviceContentProto.getDataCase() == SignalServiceContentProto.DataCase.CONTENT) {
        SignalServiceProtos.Content message = serviceContentProto.getContent();
        Optional<SenderKeyDistributionMessage> senderKeyDistributionMessage = Optional.absent();
        if (message.hasSenderKeyDistributionMessage()) {
            try {
                senderKeyDistributionMessage = Optional.of(new SenderKeyDistributionMessage(message.getSenderKeyDistributionMessage().toByteArray()));
            } catch (LegacyMessageException | InvalidMessageException e) {
                Log.w(TAG, "Failed to parse SenderKeyDistributionMessage!", e);
            }
        }
        if (message.hasDataMessage()) {
            return new SignalServiceContent(createSignalServiceMessage(metadata, message.getDataMessage()), senderKeyDistributionMessage, metadata.getSender(), metadata.getSenderDevice(), metadata.getTimestamp(), metadata.getServerReceivedTimestamp(), metadata.getServerDeliveredTimestamp(), metadata.isNeedsReceipt(), metadata.getServerGuid(), metadata.getGroupId(), serviceContentProto);
        } else if (message.hasSyncMessage() && localAddress.matches(metadata.getSender())) {
            return new SignalServiceContent(createSynchronizeMessage(metadata, message.getSyncMessage()), senderKeyDistributionMessage, metadata.getSender(), metadata.getSenderDevice(), metadata.getTimestamp(), metadata.getServerReceivedTimestamp(), metadata.getServerDeliveredTimestamp(), metadata.isNeedsReceipt(), metadata.getServerGuid(), metadata.getGroupId(), serviceContentProto);
        } else if (message.hasCallMessage()) {
            return new SignalServiceContent(createCallMessage(message.getCallMessage()), senderKeyDistributionMessage, metadata.getSender(), metadata.getSenderDevice(), metadata.getTimestamp(), metadata.getServerReceivedTimestamp(), metadata.getServerDeliveredTimestamp(), metadata.isNeedsReceipt(), metadata.getServerGuid(), metadata.getGroupId(), serviceContentProto);
        } else if (message.hasReceiptMessage()) {
            return new SignalServiceContent(createReceiptMessage(metadata, message.getReceiptMessage()), senderKeyDistributionMessage, metadata.getSender(), metadata.getSenderDevice(), metadata.getTimestamp(), metadata.getServerReceivedTimestamp(), metadata.getServerDeliveredTimestamp(), metadata.isNeedsReceipt(), metadata.getServerGuid(), metadata.getGroupId(), serviceContentProto);
        } else if (message.hasTypingMessage()) {
            return new SignalServiceContent(createTypingMessage(metadata, message.getTypingMessage()), senderKeyDistributionMessage, metadata.getSender(), metadata.getSenderDevice(), metadata.getTimestamp(), metadata.getServerReceivedTimestamp(), metadata.getServerDeliveredTimestamp(), false, metadata.getServerGuid(), metadata.getGroupId(), serviceContentProto);
        } else if (message.hasDecryptionErrorMessage()) {
            return new SignalServiceContent(createDecryptionErrorMessage(metadata, message.getDecryptionErrorMessage()), senderKeyDistributionMessage, metadata.getSender(), metadata.getSenderDevice(), metadata.getTimestamp(), metadata.getServerReceivedTimestamp(), metadata.getServerDeliveredTimestamp(), metadata.isNeedsReceipt(), metadata.getServerGuid(), metadata.getGroupId(), serviceContentProto);
        } else if (senderKeyDistributionMessage.isPresent()) {
            return new SignalServiceContent(senderKeyDistributionMessage.get(), metadata.getSender(), metadata.getSenderDevice(), metadata.getTimestamp(), metadata.getServerReceivedTimestamp(), metadata.getServerDeliveredTimestamp(), false, metadata.getServerGuid(), metadata.getGroupId(), serviceContentProto);
        }
    }
    return null;
}

Example 29 with SignalServiceAddress

use of org.whispersystems.signalservice.api.push.SignalServiceAddress in project Signal-Android by WhisperSystems.

the class SignalServiceCipher method decrypt.

private Plaintext decrypt(SignalServiceEnvelope envelope, byte[] ciphertext) throws InvalidMetadataMessageException, InvalidMetadataVersionException, ProtocolDuplicateMessageException, ProtocolUntrustedIdentityException, ProtocolLegacyMessageException, ProtocolInvalidKeyException, ProtocolInvalidVersionException, ProtocolInvalidMessageException, ProtocolInvalidKeyIdException, ProtocolNoSessionException, SelfSendException, InvalidMessageStructureException {
    try {
        byte[] paddedMessage;
        SignalServiceMetadata metadata;
        if (!envelope.hasSourceUuid() && !envelope.isUnidentifiedSender()) {
            throw new InvalidMessageStructureException("Non-UD envelope is missing a UUID!");
        }
        if (envelope.isPreKeySignalMessage()) {
            SignalProtocolAddress sourceAddress = new SignalProtocolAddress(envelope.getSourceUuid().get(), envelope.getSourceDevice());
            SignalSessionCipher sessionCipher = new SignalSessionCipher(sessionLock, new SessionCipher(signalProtocolStore, sourceAddress));
            paddedMessage = sessionCipher.decrypt(new PreKeySignalMessage(ciphertext));
            metadata = new SignalServiceMetadata(envelope.getSourceAddress(), envelope.getSourceDevice(), envelope.getTimestamp(), envelope.getServerReceivedTimestamp(), envelope.getServerDeliveredTimestamp(), false, envelope.getServerGuid(), Optional.absent());
            signalProtocolStore.clearSenderKeySharedWith(Collections.singleton(sourceAddress));
        } else if (envelope.isSignalMessage()) {
            SignalProtocolAddress sourceAddress = new SignalProtocolAddress(envelope.getSourceUuid().get(), envelope.getSourceDevice());
            SignalSessionCipher sessionCipher = new SignalSessionCipher(sessionLock, new SessionCipher(signalProtocolStore, sourceAddress));
            paddedMessage = sessionCipher.decrypt(new SignalMessage(ciphertext));
            metadata = new SignalServiceMetadata(envelope.getSourceAddress(), envelope.getSourceDevice(), envelope.getTimestamp(), envelope.getServerReceivedTimestamp(), envelope.getServerDeliveredTimestamp(), false, envelope.getServerGuid(), Optional.absent());
        } else if (envelope.isPlaintextContent()) {
            paddedMessage = new PlaintextContent(ciphertext).getBody();
            metadata = new SignalServiceMetadata(envelope.getSourceAddress(), envelope.getSourceDevice(), envelope.getTimestamp(), envelope.getServerReceivedTimestamp(), envelope.getServerDeliveredTimestamp(), false, envelope.getServerGuid(), Optional.absent());
        } else if (envelope.isUnidentifiedSender()) {
            SignalSealedSessionCipher sealedSessionCipher = new SignalSealedSessionCipher(sessionLock, new SealedSessionCipher(signalProtocolStore, localAddress.getServiceId().uuid(), localAddress.getNumber().orNull(), localDeviceId));
            DecryptionResult result = sealedSessionCipher.decrypt(certificateValidator, ciphertext, envelope.getServerReceivedTimestamp());
            SignalServiceAddress resultAddress = new SignalServiceAddress(ACI.parseOrThrow(result.getSenderUuid()), result.getSenderE164());
            Optional<byte[]> groupId = result.getGroupId();
            boolean needsReceipt = true;
            if (envelope.hasSourceUuid()) {
                Log.w(TAG, "[" + envelope.getTimestamp() + "] Received a UD-encrypted message sent over an identified channel. Marking as needsReceipt=false");
                needsReceipt = false;
            }
            if (result.getCiphertextMessageType() == CiphertextMessage.PREKEY_TYPE) {
                signalProtocolStore.clearSenderKeySharedWith(Collections.singleton(new SignalProtocolAddress(result.getSenderUuid(), result.getDeviceId())));
            }
            paddedMessage = result.getPaddedMessage();
            metadata = new SignalServiceMetadata(resultAddress, result.getDeviceId(), envelope.getTimestamp(), envelope.getServerReceivedTimestamp(), envelope.getServerDeliveredTimestamp(), needsReceipt, envelope.getServerGuid(), groupId);
        } else {
            throw new InvalidMetadataMessageException("Unknown type: " + envelope.getType());
        }
        PushTransportDetails transportDetails = new PushTransportDetails();
        byte[] data = transportDetails.getStrippedPaddingMessageBody(paddedMessage);
        return new Plaintext(metadata, data);
    } catch (DuplicateMessageException e) {
        throw new ProtocolDuplicateMessageException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (LegacyMessageException e) {
        throw new ProtocolLegacyMessageException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidMessageException e) {
        throw new ProtocolInvalidMessageException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidKeyIdException e) {
        throw new ProtocolInvalidKeyIdException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidKeyException e) {
        throw new ProtocolInvalidKeyException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (UntrustedIdentityException e) {
        throw new ProtocolUntrustedIdentityException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (InvalidVersionException e) {
        throw new ProtocolInvalidVersionException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    } catch (NoSessionException e) {
        throw new ProtocolNoSessionException(e, envelope.getSourceIdentifier(), envelope.getSourceDevice());
    }
}

Example 30 with SignalServiceAddress

use of org.whispersystems.signalservice.api.push.SignalServiceAddress in project Signal-Android by WhisperSystems.

the class GroupV1MessageProcessor method handleGroupUpdate.

@Nullable
private static Long handleGroupUpdate(@NonNull Context context, @NonNull SignalServiceContent content, @NonNull SignalServiceGroup group, @NonNull GroupRecord groupRecord, boolean outgoing) {
    GroupDatabase database = SignalDatabase.groups();
    GroupId.V1 id = GroupId.v1orThrow(group.getGroupId());
    Set<RecipientId> recordMembers = new HashSet<>(groupRecord.getMembers());
    Set<RecipientId> messageMembers = new HashSet<>();
    if (group.getMembers().isPresent()) {
        for (SignalServiceAddress messageMember : group.getMembers().get()) {
            messageMembers.add(Recipient.externalGV1Member(messageMember).getId());
        }
    }
    Set<RecipientId> addedMembers = new HashSet<>(messageMembers);
    addedMembers.removeAll(recordMembers);
    Set<RecipientId> missingMembers = new HashSet<>(recordMembers);
    missingMembers.removeAll(messageMembers);
    GroupContext.Builder builder = createGroupContext(group);
    builder.setType(GroupContext.Type.UPDATE);
    if (addedMembers.size() > 0) {
        Set<RecipientId> unionMembers = new HashSet<>(recordMembers);
        unionMembers.addAll(messageMembers);
        database.updateMembers(id, new LinkedList<>(unionMembers));
        builder.clearMembers();
        builder.clearMembersE164();
        for (RecipientId addedMember : addedMembers) {
            Recipient recipient = Recipient.resolved(addedMember);
            if (recipient.getE164().isPresent()) {
                builder.addMembersE164(recipient.requireE164());
                builder.addMembers(createMember(recipient.requireE164()));
            }
        }
    } else {
        builder.clearMembers();
        builder.clearMembersE164();
    }
    if (missingMembers.size() > 0) {
    // TODO We should tell added and missing about each-other.
    }
    if (group.getName().isPresent() || group.getAvatar().isPresent()) {
        SignalServiceAttachment avatar = group.getAvatar().orNull();
        database.update(id, group.getName().orNull(), avatar != null ? avatar.asPointer() : null);
    }
    if (group.getName().isPresent() && group.getName().get().equals(groupRecord.getTitle())) {
        builder.clearName();
    }
    if (!groupRecord.isActive())
        database.setActive(id, true);
    return storeMessage(context, content, group, builder.build(), outgoing);
}