session-ios/SignalServiceKit/src/Messages/OWSMessageManager.m

1429 lines
59 KiB
Objective-C

//
// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
//
#import "OWSMessageManager.h"
#import "AppContext.h"
#import "AppReadiness.h"
#import "ContactsManagerProtocol.h"
#import "Cryptography.h"
#import "MimeTypeUtil.h"
#import "NotificationsProtocol.h"
#import "OWSAttachmentsProcessor.h"
#import "OWSBlockingManager.h"
#import "OWSCallMessageHandler.h"
#import "OWSContact.h"
#import "OWSDevice.h"
#import "OWSDisappearingConfigurationUpdateInfoMessage.h"
#import "OWSDisappearingMessagesConfiguration.h"
#import "OWSDisappearingMessagesJob.h"
#import "OWSIdentityManager.h"
#import "OWSIncomingMessageFinder.h"
#import "OWSIncomingSentMessageTranscript.h"
#import "OWSMessageSender.h"
#import "OWSMessageUtils.h"
#import "OWSPrimaryStorage+SessionStore.h"
#import "OWSPrimaryStorage.h"
#import "OWSReadReceiptManager.h"
#import "OWSRecordTranscriptJob.h"
#import "OWSSyncConfigurationMessage.h"
#import "OWSSyncContactsMessage.h"
#import "OWSSyncGroupsMessage.h"
#import "OWSSyncGroupsRequestMessage.h"
#import "ProfileManagerProtocol.h"
#import "SSKEnvironment.h"
#import "TSAccountManager.h"
#import "TSAttachment.h"
#import "TSAttachmentPointer.h"
#import "TSAttachmentStream.h"
#import "TSContactThread.h"
#import "TSDatabaseView.h"
#import "TSGroupModel.h"
#import "TSGroupThread.h"
#import "TSIncomingMessage.h"
#import "TSInfoMessage.h"
#import "TSNetworkManager.h"
#import "TSOutgoingMessage.h"
#import "TSQuotedMessage.h"
#import <SignalCoreKit/NSDate+OWS.h>
#import <SignalCoreKit/NSString+SSK.h>
#import <SignalServiceKit/SignalServiceKit-Swift.h>
#import <YapDatabase/YapDatabase.h>
NS_ASSUME_NONNULL_BEGIN
@interface OWSMessageManager ()
@property (nonatomic, readonly) OWSPrimaryStorage *primaryStorage;
@property (nonatomic, readonly) YapDatabaseConnection *dbConnection;
@property (nonatomic, readonly) OWSIncomingMessageFinder *incomingMessageFinder;
@end
#pragma mark -
@implementation OWSMessageManager
+ (instancetype)sharedManager
{
OWSAssertDebug(SSKEnvironment.shared.messageManager);
return SSKEnvironment.shared.messageManager;
}
- (instancetype)initWithPrimaryStorage:(OWSPrimaryStorage *)primaryStorage
{
self = [super init];
if (!self) {
return self;
}
_primaryStorage = primaryStorage;
_dbConnection = primaryStorage.newDatabaseConnection;
_incomingMessageFinder = [[OWSIncomingMessageFinder alloc] initWithPrimaryStorage:primaryStorage];
OWSSingletonAssert();
OWSAssertDebug(CurrentAppContext().isMainApp);
return self;
}
- (id<OWSCallMessageHandler>)callMessageHandler
{
OWSAssertDebug(SSKEnvironment.shared.callMessageHandler);
return SSKEnvironment.shared.callMessageHandler;
}
- (id<ContactsManagerProtocol>)contactsManager
{
OWSAssertDebug(SSKEnvironment.shared.contactsManager);
return SSKEnvironment.shared.contactsManager;
}
- (OWSMessageSender *)messageSender
{
OWSAssertDebug(SSKEnvironment.shared.messageSender);
return SSKEnvironment.shared.messageSender;
}
- (OWSBlockingManager *)blockingManager
{
OWSAssertDebug(SSKEnvironment.shared.blockingManager);
return SSKEnvironment.shared.blockingManager;
}
- (OWSIdentityManager *)identityManager
{
OWSAssertDebug(SSKEnvironment.shared.identityManager);
return SSKEnvironment.shared.identityManager;
}
- (TSNetworkManager *)networkManager
{
OWSAssertDebug(SSKEnvironment.shared.networkManager);
return SSKEnvironment.shared.networkManager;
}
- (void)startObserving
{
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(yapDatabaseModified:)
name:YapDatabaseModifiedNotification
object:OWSPrimaryStorage.sharedManager.dbNotificationObject];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(yapDatabaseModified:)
name:YapDatabaseModifiedExternallyNotification
object:nil];
}
- (void)yapDatabaseModified:(NSNotification *)notification
{
if (AppReadiness.isAppReady) {
[OWSMessageUtils.sharedManager updateApplicationBadgeCount];
} else {
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
[AppReadiness runNowOrWhenAppIsReady:^{
[OWSMessageUtils.sharedManager updateApplicationBadgeCount];
}];
});
}
}
#pragma mark - Blocking
- (BOOL)isEnvelopeSenderBlocked:(SSKProtoEnvelope *)envelope
{
OWSAssertDebug(envelope);
return [self.blockingManager isRecipientIdBlocked:envelope.source];
}
- (BOOL)isDataMessageBlocked:(SSKProtoDataMessage *)dataMessage envelope:(SSKProtoEnvelope *)envelope
{
OWSAssertDebug(dataMessage);
OWSAssertDebug(envelope);
if (dataMessage.group) {
return [self.blockingManager isGroupIdBlocked:dataMessage.group.id];
} else {
BOOL senderBlocked = [self isEnvelopeSenderBlocked:envelope];
// If the envelopeSender was blocked, we never should have gotten as far as decrypting the dataMessage.
OWSAssertDebug(!senderBlocked);
return senderBlocked;
}
}
#pragma mark - message handling
- (void)processEnvelope:(SSKProtoEnvelope *)envelope
plaintextData:(NSData *_Nullable)plaintextData
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
if (!TSAccountManager.isRegistered) {
OWSFailDebug(@"Not registered.");
return;
}
if (!CurrentAppContext().isMainApp) {
OWSFail(@"Not main app.");
return;
}
OWSLogInfo(@"handling decrypted envelope: %@", [self descriptionForEnvelope:envelope]);
if (!envelope.source.isValidE164) {
OWSFailDebug(@"incoming envelope has invalid source");
return;
}
OWSAssertDebug(envelope.source.length > 0);
OWSAssertDebug(![self isEnvelopeSenderBlocked:envelope]);
switch (envelope.type) {
case SSKProtoEnvelopeTypeCiphertext:
case SSKProtoEnvelopeTypePrekeyBundle:
if (!plaintextData) {
OWSFailDebug(@"missing decrypted data for envelope: %@", [self descriptionForEnvelope:envelope]);
return;
}
[self handleEnvelope:envelope plaintextData:plaintextData transaction:transaction];
break;
case SSKProtoEnvelopeTypeReceipt:
OWSAssertDebug(!plaintextData);
[self handleDeliveryReceipt:envelope transaction:transaction];
break;
// Other messages are just dismissed for now.
case SSKProtoEnvelopeTypeKeyExchange:
OWSLogWarn(@"Received Key Exchange Message, not supported");
break;
case SSKProtoEnvelopeTypeUnknown:
OWSLogWarn(@"Received an unknown message type");
break;
default:
OWSLogWarn(@"Received unhandled envelope type: %d", (int)envelope.type);
break;
}
}
- (void)handleDeliveryReceipt:(SSKProtoEnvelope *)envelope transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
// Old-style delivery notices don't include a "delivery timestamp".
[self processDeliveryReceiptsFromRecipientId:envelope.source
sentTimestamps:@[
@(envelope.timestamp),
]
deliveryTimestamp:nil
transaction:transaction];
}
// deliveryTimestamp is an optional parameter, since legacy
// delivery receipts don't have a "delivery timestamp". Those
// messages repurpose the "timestamp" field to indicate when the
// corresponding message was originally sent.
- (void)processDeliveryReceiptsFromRecipientId:(NSString *)recipientId
sentTimestamps:(NSArray<NSNumber *> *)sentTimestamps
deliveryTimestamp:(NSNumber *_Nullable)deliveryTimestamp
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (recipientId.length < 1) {
OWSFailDebug(@"Empty recipientId.");
return;
}
if (sentTimestamps.count < 1) {
OWSFailDebug(@"Missing sentTimestamps.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
for (NSNumber *nsTimestamp in sentTimestamps) {
uint64_t timestamp = [nsTimestamp unsignedLongLongValue];
NSArray<TSOutgoingMessage *> *messages
= (NSArray<TSOutgoingMessage *> *)[TSInteraction interactionsWithTimestamp:timestamp
ofClass:[TSOutgoingMessage class]
withTransaction:transaction];
if (messages.count < 1) {
// The service sends delivery receipts for "unpersisted" messages
// like group updates, so these errors are expected to a certain extent.
//
// TODO: persist "early" delivery receipts.
OWSLogInfo(@"Missing message for delivery receipt: %llu", timestamp);
} else {
if (messages.count > 1) {
OWSLogInfo(@"More than one message (%lu) for delivery receipt: %llu",
(unsigned long)messages.count,
timestamp);
}
for (TSOutgoingMessage *outgoingMessage in messages) {
[outgoingMessage updateWithDeliveredRecipient:recipientId
deliveryTimestamp:deliveryTimestamp
transaction:transaction];
}
}
}
}
- (void)handleEnvelope:(SSKProtoEnvelope *)envelope
plaintextData:(NSData *)plaintextData
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!plaintextData) {
OWSFailDebug(@"Missing plaintextData.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
if (envelope.timestamp < 1) {
OWSFailDebug(@"Invalid timestamp.");
return;
}
if (envelope.source.length < 1) {
OWSFailDebug(@"Missing source.");
return;
}
if (envelope.sourceDevice < 1) {
OWSFailDebug(@"Invaid source device.");
return;
}
BOOL duplicateEnvelope = [self.incomingMessageFinder existsMessageWithTimestamp:envelope.timestamp
sourceId:envelope.source
sourceDeviceId:envelope.sourceDevice
transaction:transaction];
if (duplicateEnvelope) {
OWSLogInfo(@"Ignoring previously received envelope from %@ with timestamp: %llu",
envelopeAddress(envelope),
envelope.timestamp);
return;
}
if (envelope.content != nil) {
NSError *error;
SSKProtoContent *_Nullable contentProto = [SSKProtoContent parseData:plaintextData error:&error];
if (error || !contentProto) {
OWSFailDebug(@"could not parse proto: %@", error);
return;
}
OWSLogInfo(@"handling content: <Content: %@>", [self descriptionForContent:contentProto]);
if (contentProto.syncMessage) {
[self handleIncomingEnvelope:envelope withSyncMessage:contentProto.syncMessage transaction:transaction];
[[OWSDeviceManager sharedManager] setHasReceivedSyncMessage];
} else if (contentProto.dataMessage) {
[self handleIncomingEnvelope:envelope withDataMessage:contentProto.dataMessage transaction:transaction];
} else if (contentProto.callMessage) {
[self handleIncomingEnvelope:envelope withCallMessage:contentProto.callMessage];
} else if (contentProto.nullMessage) {
OWSLogInfo(@"Received null message.");
} else if (contentProto.receiptMessage) {
[self handleIncomingEnvelope:envelope
withReceiptMessage:contentProto.receiptMessage
transaction:transaction];
} else {
OWSLogWarn(@"Ignoring envelope. Content with no known payload");
}
} else if (envelope.legacyMessage != nil) { // DEPRECATED - Remove after all clients have been upgraded.
NSError *error;
SSKProtoDataMessage *_Nullable dataMessageProto = [SSKProtoDataMessage parseData:plaintextData error:&error];
if (error || !dataMessageProto) {
OWSFailDebug(@"could not parse proto: %@", error);
return;
}
OWSLogInfo(@"handling message: <DataMessage: %@ />", [self descriptionForDataMessage:dataMessageProto]);
[self handleIncomingEnvelope:envelope withDataMessage:dataMessageProto transaction:transaction];
} else {
OWSProdInfoWEnvelope([OWSAnalyticsEvents messageManagerErrorEnvelopeNoActionablePayload], envelope);
}
}
- (void)handleIncomingEnvelope:(SSKProtoEnvelope *)envelope
withDataMessage:(SSKProtoDataMessage *)dataMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
if ([self isDataMessageBlocked:dataMessage envelope:envelope]) {
NSString *logMessage = [NSString stringWithFormat:@"Ignoring blocked message from sender: %@", envelope.source];
if (dataMessage.group) {
logMessage =
[logMessage stringByAppendingString:[NSString stringWithFormat:@" in group: %@", dataMessage.group.id]];
}
OWSLogError(@"%@", logMessage);
return;
}
if (dataMessage.hasTimestamp) {
if (dataMessage.timestamp <= 0) {
OWSFailDebug(@"Ignoring message with invalid data message timestamp: %@", envelope.source);
// TODO: Add analytics.
return;
}
// This prevents replay attacks by the service.
if (dataMessage.timestamp != envelope.timestamp) {
OWSFailDebug(@"Ignoring message with non-matching data message timestamp: %@", envelope.source);
// TODO: Add analytics.
return;
}
}
if ([dataMessage hasProfileKey]) {
NSData *profileKey = [dataMessage profileKey];
NSString *recipientId = envelope.source;
if (profileKey.length == kAES256_KeyByteLength) {
[self.profileManager setProfileKeyData:profileKey forRecipientId:recipientId];
} else {
OWSFailDebug(
@"Unexpected profile key length:%lu on message from:%@", (unsigned long)profileKey.length, recipientId);
}
}
if (dataMessage.group) {
TSGroupThread *_Nullable groupThread =
[TSGroupThread threadWithGroupId:dataMessage.group.id transaction:transaction];
if (groupThread) {
if (dataMessage.group.type != SSKProtoGroupContextTypeUpdate) {
if (![groupThread.groupModel.groupMemberIds containsObject:[TSAccountManager localNumber]]) {
OWSLogInfo(@"Ignoring messages for left group.");
return;
}
}
} else {
// Unknown group.
if (dataMessage.group.type == SSKProtoGroupContextTypeUpdate) {
// Accept group updates for unknown groups.
} else if (dataMessage.group.type == SSKProtoGroupContextTypeDeliver) {
[self sendGroupInfoRequest:dataMessage.group.id envelope:envelope transaction:transaction];
return;
} else {
OWSLogInfo(@"Ignoring group message for unknown group from: %@", envelope.source);
return;
}
}
}
if ((dataMessage.flags & SSKProtoDataMessageFlagsEndSession) != 0) {
[self handleEndSessionMessageWithEnvelope:envelope dataMessage:dataMessage transaction:transaction];
} else if ((dataMessage.flags & SSKProtoDataMessageFlagsExpirationTimerUpdate) != 0) {
[self handleExpirationTimerUpdateMessageWithEnvelope:envelope dataMessage:dataMessage transaction:transaction];
} else if ((dataMessage.flags & SSKProtoDataMessageFlagsProfileKeyUpdate) != 0) {
[self handleProfileKeyMessageWithEnvelope:envelope dataMessage:dataMessage];
} else if (dataMessage.attachments.count > 0) {
[self handleReceivedMediaWithEnvelope:envelope dataMessage:dataMessage transaction:transaction];
} else {
[self handleReceivedTextMessageWithEnvelope:envelope dataMessage:dataMessage transaction:transaction];
if ([self isDataMessageGroupAvatarUpdate:dataMessage]) {
OWSLogVerbose(@"Data message had group avatar attachment");
[self handleReceivedGroupAvatarUpdateWithEnvelope:envelope dataMessage:dataMessage transaction:transaction];
}
}
}
- (void)sendGroupInfoRequest:(NSData *)groupId
envelope:(SSKProtoEnvelope *)envelope
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
if (groupId.length < 1) {
OWSFailDebug(@"Invalid groupId.");
return;
}
// FIXME: https://github.com/signalapp/Signal-iOS/issues/1340
OWSLogInfo(@"Sending group info request: %@", envelopeAddress(envelope));
NSString *recipientId = envelope.source;
TSThread *thread = [TSContactThread getOrCreateThreadWithContactId:recipientId transaction:transaction];
OWSSyncGroupsRequestMessage *syncGroupsRequestMessage =
[[OWSSyncGroupsRequestMessage alloc] initWithThread:thread groupId:groupId];
[self.messageSender enqueueMessage:syncGroupsRequestMessage
success:^{
OWSLogWarn(@"Successfully sent Request Group Info message.");
}
failure:^(NSError *error) {
OWSLogError(@"Failed to send Request Group Info message with error: %@", error);
}];
}
- (id<ProfileManagerProtocol>)profileManager
{
return SSKEnvironment.shared.profileManager;
}
- (void)handleIncomingEnvelope:(SSKProtoEnvelope *)envelope
withReceiptMessage:(SSKProtoReceiptMessage *)receiptMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!receiptMessage) {
OWSFailDebug(@"Missing receiptMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
NSArray<NSNumber *> *sentTimestamps = receiptMessage.timestamp;
switch (receiptMessage.type) {
case SSKProtoReceiptMessageTypeDelivery:
OWSLogVerbose(@"Processing receipt message with delivery receipts.");
[self processDeliveryReceiptsFromRecipientId:envelope.source
sentTimestamps:sentTimestamps
deliveryTimestamp:@(envelope.timestamp)
transaction:transaction];
return;
case SSKProtoReceiptMessageTypeRead:
OWSLogVerbose(@"Processing receipt message with read receipts.");
[OWSReadReceiptManager.sharedManager processReadReceiptsFromRecipientId:envelope.source
sentTimestamps:sentTimestamps
readTimestamp:envelope.timestamp];
break;
default:
OWSLogInfo(@"Ignoring receipt message of unknown type: %d.", (int)receiptMessage.type);
return;
}
}
- (void)handleIncomingEnvelope:(SSKProtoEnvelope *)envelope
withCallMessage:(SSKProtoCallMessage *)callMessage
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!callMessage) {
OWSFailDebug(@"Missing callMessage.");
return;
}
if ([callMessage hasProfileKey]) {
NSData *profileKey = [callMessage profileKey];
NSString *recipientId = envelope.source;
[self.profileManager setProfileKeyData:profileKey forRecipientId:recipientId];
}
// By dispatching async, we introduce the possibility that these messages might be lost
// if the app exits before this block is executed. This is fine, since the call by
// definition will end if the app exits.
dispatch_async(dispatch_get_main_queue(), ^{
if (callMessage.offer) {
[self.callMessageHandler receivedOffer:callMessage.offer fromCallerId:envelope.source];
} else if (callMessage.answer) {
[self.callMessageHandler receivedAnswer:callMessage.answer fromCallerId:envelope.source];
} else if (callMessage.iceUpdate.count > 0) {
for (SSKProtoCallMessageIceUpdate *iceUpdate in callMessage.iceUpdate) {
[self.callMessageHandler receivedIceUpdate:iceUpdate fromCallerId:envelope.source];
}
} else if (callMessage.hangup) {
OWSLogVerbose(@"Received CallMessage with Hangup.");
[self.callMessageHandler receivedHangup:callMessage.hangup fromCallerId:envelope.source];
} else if (callMessage.busy) {
[self.callMessageHandler receivedBusy:callMessage.busy fromCallerId:envelope.source];
} else {
OWSProdInfoWEnvelope([OWSAnalyticsEvents messageManagerErrorCallMessageNoActionablePayload], envelope);
}
});
}
- (void)handleReceivedGroupAvatarUpdateWithEnvelope:(SSKProtoEnvelope *)envelope
dataMessage:(SSKProtoDataMessage *)dataMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
TSGroupThread *_Nullable groupThread =
[TSGroupThread threadWithGroupId:dataMessage.group.id transaction:transaction];
if (!groupThread) {
OWSFailDebug(@"Missing group for group avatar update");
return;
}
OWSAttachmentsProcessor *attachmentsProcessor =
[[OWSAttachmentsProcessor alloc] initWithAttachmentProtos:@[ dataMessage.group.avatar ]
networkManager:self.networkManager
transaction:transaction];
if (!attachmentsProcessor.hasSupportedAttachments) {
OWSLogWarn(@"received unsupported group avatar envelope");
return;
}
[attachmentsProcessor fetchAttachmentsForMessage:nil
transaction:transaction
success:^(TSAttachmentStream *attachmentStream) {
[groupThread updateAvatarWithAttachmentStream:attachmentStream];
}
failure:^(NSError *error) {
OWSLogError(@"failed to fetch attachments for group avatar sent at: %llu. with error: %@",
envelope.timestamp,
error);
}];
}
- (void)handleReceivedMediaWithEnvelope:(SSKProtoEnvelope *)envelope
dataMessage:(SSKProtoDataMessage *)dataMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
TSThread *_Nullable thread = [self threadForEnvelope:envelope dataMessage:dataMessage transaction:transaction];
if (!thread) {
OWSFailDebug(@"ignoring media message for unknown group.");
return;
}
OWSAttachmentsProcessor *attachmentsProcessor =
[[OWSAttachmentsProcessor alloc] initWithAttachmentProtos:dataMessage.attachments
networkManager:self.networkManager
transaction:transaction];
if (!attachmentsProcessor.hasSupportedAttachments) {
OWSLogWarn(@"received unsupported media envelope");
return;
}
TSIncomingMessage *_Nullable createdMessage = [self handleReceivedEnvelope:envelope
withDataMessage:dataMessage
attachmentIds:attachmentsProcessor.attachmentIds
transaction:transaction];
if (!createdMessage) {
return;
}
OWSLogDebug(@"incoming attachment message: %@", createdMessage.debugDescription);
[attachmentsProcessor fetchAttachmentsForMessage:createdMessage
transaction:transaction
success:^(TSAttachmentStream *attachmentStream) {
OWSLogDebug(@"successfully fetched attachment: %@ for message: %@", attachmentStream, createdMessage);
}
failure:^(NSError *error) {
OWSLogError(@"failed to fetch attachments for message: %@ with error: %@", createdMessage, error);
}];
}
- (void)handleIncomingEnvelope:(SSKProtoEnvelope *)envelope
withSyncMessage:(SSKProtoSyncMessage *)syncMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!syncMessage) {
OWSFailDebug(@"Missing syncMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
NSString *localNumber = [TSAccountManager localNumber];
if (![localNumber isEqualToString:envelope.source]) {
// Sync messages should only come from linked devices.
OWSProdErrorWEnvelope([OWSAnalyticsEvents messageManagerErrorSyncMessageFromUnknownSource], envelope);
return;
}
if (syncMessage.sent) {
OWSIncomingSentMessageTranscript *transcript =
[[OWSIncomingSentMessageTranscript alloc] initWithProto:syncMessage.sent
transaction:transaction];
OWSRecordTranscriptJob *recordJob =
[[OWSRecordTranscriptJob alloc] initWithIncomingSentMessageTranscript:transcript];
SSKProtoDataMessage *_Nullable dataMessage = syncMessage.sent.message;
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return;
}
NSString *destination = syncMessage.sent.destination;
if (dataMessage && destination.length > 0 && dataMessage.hasProfileKey) {
// If we observe a linked device sending our profile key to another
// user, we can infer that that user belongs in our profile whitelist.
if (dataMessage.group) {
[self.profileManager addGroupIdToProfileWhitelist:dataMessage.group.id];
} else {
[self.profileManager addUserToProfileWhitelist:destination];
}
}
if ([self isDataMessageGroupAvatarUpdate:syncMessage.sent.message]) {
[recordJob runWithAttachmentHandler:^(TSAttachmentStream *attachmentStream) {
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
TSGroupThread *_Nullable groupThread =
[TSGroupThread threadWithGroupId:dataMessage.group.id transaction:transaction];
if (!groupThread) {
OWSFailDebug(@"ignoring sync group avatar update for unknown group.");
return;
}
[groupThread updateAvatarWithAttachmentStream:attachmentStream transaction:transaction];
}];
}
transaction:transaction];
} else {
[recordJob
runWithAttachmentHandler:^(TSAttachmentStream *attachmentStream) {
OWSLogDebug(@"successfully fetched transcript attachment: %@", attachmentStream);
}
transaction:transaction];
}
} else if (syncMessage.request) {
if (syncMessage.request.type == SSKProtoSyncMessageRequestTypeContacts) {
// We respond asynchronously because populating the sync message will
// create transactions and it's not practical (due to locking in the OWSIdentityManager)
// to plumb our transaction through.
//
// In rare cases this means we won't respond to the sync request, but that's
// acceptable.
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
OWSSyncContactsMessage *syncContactsMessage =
[[OWSSyncContactsMessage alloc] initWithSignalAccounts:self.contactsManager.signalAccounts
identityManager:self.identityManager
profileManager:self.profileManager];
__block NSData *_Nullable syncData;
[self.dbConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
syncData = [syncContactsMessage buildPlainTextAttachmentDataWithTransaction:transaction];
}];
if (!syncData) {
OWSFailDebug(@"Failed to serialize contacts sync message.");
return;
}
DataSource *dataSource = [DataSourceValue dataSourceWithSyncMessageData:syncData];
[self.messageSender enqueueTemporaryAttachment:dataSource
contentType:OWSMimeTypeApplicationOctetStream
inMessage:syncContactsMessage
success:^{
OWSLogInfo(@"Successfully sent Contacts response syncMessage.");
}
failure:^(NSError *error) {
OWSLogError(@"Failed to send Contacts response syncMessage with error: %@", error);
}];
});
} else if (syncMessage.request.type == SSKProtoSyncMessageRequestTypeGroups) {
OWSSyncGroupsMessage *syncGroupsMessage = [[OWSSyncGroupsMessage alloc] init];
NSData *_Nullable syncData = [syncGroupsMessage buildPlainTextAttachmentDataWithTransaction:transaction];
if (!syncData) {
OWSFailDebug(@"Failed to serialize groups sync message.");
return;
}
DataSource *dataSource = [DataSourceValue dataSourceWithSyncMessageData:syncData];
[self.messageSender enqueueTemporaryAttachment:dataSource
contentType:OWSMimeTypeApplicationOctetStream
inMessage:syncGroupsMessage
success:^{
OWSLogInfo(@"Successfully sent Groups response syncMessage.");
}
failure:^(NSError *error) {
OWSLogError(@"Failed to send Groups response syncMessage with error: %@", error);
}];
} else if (syncMessage.request.type == SSKProtoSyncMessageRequestTypeBlocked) {
OWSLogInfo(@"Received request for block list");
[self.blockingManager syncBlockList];
} else if (syncMessage.request.type == SSKProtoSyncMessageRequestTypeConfiguration) {
BOOL areReadReceiptsEnabled =
[[OWSReadReceiptManager sharedManager] areReadReceiptsEnabledWithTransaction:transaction];
OWSSyncConfigurationMessage *syncConfigurationMessage =
[[OWSSyncConfigurationMessage alloc] initWithReadReceiptsEnabled:areReadReceiptsEnabled];
[self.messageSender enqueueMessage:syncConfigurationMessage
success:^{
OWSLogInfo(@"Successfully sent Configuration response syncMessage.");
}
failure:^(NSError *error) {
OWSLogError(@"Failed to send Configuration response syncMessage with error: %@", error);
}];
} else {
OWSLogWarn(@"ignoring unsupported sync request message");
}
} else if (syncMessage.blocked) {
NSArray<NSString *> *blockedPhoneNumbers = [syncMessage.blocked.numbers copy];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
[self.blockingManager setBlockedPhoneNumbers:blockedPhoneNumbers sendSyncMessage:NO];
});
} else if (syncMessage.read.count > 0) {
OWSLogInfo(@"Received %lu read receipt(s)", (unsigned long)syncMessage.read.count);
[OWSReadReceiptManager.sharedManager processReadReceiptsFromLinkedDevice:syncMessage.read
readTimestamp:envelope.timestamp
transaction:transaction];
} else if (syncMessage.verified) {
OWSLogInfo(@"Received verification state for %@", syncMessage.verified.destination);
[self.identityManager processIncomingSyncMessage:syncMessage.verified transaction:transaction];
} else {
OWSLogWarn(@"Ignoring unsupported sync message.");
}
}
- (void)handleEndSessionMessageWithEnvelope:(SSKProtoEnvelope *)envelope
dataMessage:(SSKProtoDataMessage *)dataMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
TSContactThread *thread = [TSContactThread getOrCreateThreadWithContactId:envelope.source transaction:transaction];
[[[TSInfoMessage alloc] initWithTimestamp:[NSDate ows_millisecondTimeStamp]
inThread:thread
messageType:TSInfoMessageTypeSessionDidEnd] saveWithTransaction:transaction];
[self.primaryStorage deleteAllSessionsForContact:envelope.source protocolContext:transaction];
}
- (void)handleExpirationTimerUpdateMessageWithEnvelope:(SSKProtoEnvelope *)envelope
dataMessage:(SSKProtoDataMessage *)dataMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
TSThread *_Nullable thread = [self threadForEnvelope:envelope dataMessage:dataMessage transaction:transaction];
if (!thread) {
OWSFailDebug(@"ignoring expiring messages update for unknown group.");
return;
}
OWSDisappearingMessagesConfiguration *disappearingMessagesConfiguration;
if (dataMessage.hasExpireTimer && dataMessage.expireTimer > 0) {
OWSLogInfo(
@"Expiring messages duration turned to %u for thread %@", (unsigned int)dataMessage.expireTimer, thread);
disappearingMessagesConfiguration =
[[OWSDisappearingMessagesConfiguration alloc] initWithThreadId:thread.uniqueId
enabled:YES
durationSeconds:dataMessage.expireTimer];
} else {
OWSLogInfo(@"Expiring messages have been turned off for thread %@", thread);
disappearingMessagesConfiguration = [[OWSDisappearingMessagesConfiguration alloc]
initWithThreadId:thread.uniqueId
enabled:NO
durationSeconds:OWSDisappearingMessagesConfigurationDefaultExpirationDuration];
}
OWSAssertDebug(disappearingMessagesConfiguration);
[disappearingMessagesConfiguration saveWithTransaction:transaction];
NSString *name = [self.contactsManager displayNameForPhoneIdentifier:envelope.source];
OWSDisappearingConfigurationUpdateInfoMessage *message =
[[OWSDisappearingConfigurationUpdateInfoMessage alloc] initWithTimestamp:[NSDate ows_millisecondTimeStamp]
thread:thread
configuration:disappearingMessagesConfiguration
createdByRemoteName:name
createdInExistingGroup:NO];
[message saveWithTransaction:transaction];
}
- (void)handleProfileKeyMessageWithEnvelope:(SSKProtoEnvelope *)envelope
dataMessage:(SSKProtoDataMessage *)dataMessage
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return;
}
NSString *recipientId = envelope.source;
if (!dataMessage.hasProfileKey) {
OWSFailDebug(@"received profile key message without profile key from: %@", envelopeAddress(envelope));
return;
}
NSData *profileKey = dataMessage.profileKey;
if (profileKey.length != kAES256_KeyByteLength) {
OWSFailDebug(@"received profile key of unexpected length:%lu from:%@",
(unsigned long)profileKey.length,
envelopeAddress(envelope));
return;
}
id<ProfileManagerProtocol> profileManager = SSKEnvironment.shared.profileManager;
[profileManager setProfileKeyData:profileKey forRecipientId:recipientId];
}
- (void)handleReceivedTextMessageWithEnvelope:(SSKProtoEnvelope *)envelope
dataMessage:(SSKProtoDataMessage *)dataMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
[self handleReceivedEnvelope:envelope withDataMessage:dataMessage attachmentIds:@[] transaction:transaction];
}
- (void)sendGroupUpdateForThread:(TSGroupThread *)gThread message:(TSOutgoingMessage *)message
{
if (!gThread) {
OWSFailDebug(@"Missing gThread.");
return;
}
if (!gThread.groupModel) {
OWSFailDebug(@"Missing gThread.groupModel.");
return;
}
if (!message) {
OWSFailDebug(@"Missing message.");
return;
}
if (gThread.groupModel.groupImage) {
NSData *data = UIImagePNGRepresentation(gThread.groupModel.groupImage);
DataSource *_Nullable dataSource = [DataSourceValue dataSourceWithData:data fileExtension:@"png"];
[self.messageSender enqueueTemporaryAttachment:dataSource
contentType:OWSMimeTypeImagePng
inMessage:message
success:^{
OWSLogDebug(@"Successfully sent group update with avatar");
}
failure:^(NSError *error) {
OWSLogError(@"Failed to send group avatar update with error: %@", error);
}];
} else {
[self.messageSender enqueueMessage:message
success:^{
OWSLogDebug(@"Successfully sent group update");
}
failure:^(NSError *error) {
OWSLogError(@"Failed to send group update with error: %@", error);
}];
}
}
- (void)handleGroupInfoRequest:(SSKProtoEnvelope *)envelope
dataMessage:(SSKProtoDataMessage *)dataMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
if (dataMessage.group.type != SSKProtoGroupContextTypeRequestInfo) {
OWSFailDebug(@"Unexpected group message type.");
return;
}
NSData *groupId = dataMessage.group ? dataMessage.group.id : nil;
if (!groupId) {
OWSFailDebug(@"Group info request is missing group id.");
return;
}
OWSLogInfo(@"Received 'Request Group Info' message for group: %@ from: %@", groupId, envelope.source);
TSGroupThread *_Nullable gThread = [TSGroupThread threadWithGroupId:dataMessage.group.id transaction:transaction];
if (!gThread) {
OWSLogWarn(@"Unknown group: %@", groupId);
return;
}
// Ensure sender is in the group.
if (![gThread.groupModel.groupMemberIds containsObject:envelope.source]) {
OWSLogWarn(@"Ignoring 'Request Group Info' message for non-member of group. %@ not in %@",
envelope.source,
gThread.groupModel.groupMemberIds);
return;
}
// Ensure we are in the group.
NSString *localNumber = [TSAccountManager localNumber];
if (![gThread.groupModel.groupMemberIds containsObject:localNumber]) {
OWSLogWarn(@"Ignoring 'Request Group Info' message for group we no longer belong to.");
return;
}
NSString *updateGroupInfo =
[gThread.groupModel getInfoStringAboutUpdateTo:gThread.groupModel contactsManager:self.contactsManager];
uint32_t expiresInSeconds = [gThread disappearingMessagesDurationWithTransaction:transaction];
TSOutgoingMessage *message = [TSOutgoingMessage outgoingMessageInThread:gThread
groupMetaMessage:TSGroupMetaMessageUpdate
expiresInSeconds:expiresInSeconds];
[message updateWithCustomMessage:updateGroupInfo transaction:transaction];
// Only send this group update to the requester.
[message updateWithSendingToSingleGroupRecipient:envelope.source transaction:transaction];
[self sendGroupUpdateForThread:gThread message:message];
}
- (TSIncomingMessage *_Nullable)handleReceivedEnvelope:(SSKProtoEnvelope *)envelope
withDataMessage:(SSKProtoDataMessage *)dataMessage
attachmentIds:(NSArray<NSString *> *)attachmentIds
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return nil;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return nil;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return nil;
}
uint64_t timestamp = envelope.timestamp;
NSString *body = dataMessage.body;
NSData *groupId = dataMessage.group ? dataMessage.group.id : nil;
OWSContact *_Nullable contact = [OWSContacts contactForDataMessage:dataMessage transaction:transaction];
if (dataMessage.group.type == SSKProtoGroupContextTypeRequestInfo) {
[self handleGroupInfoRequest:envelope dataMessage:dataMessage transaction:transaction];
return nil;
}
if (groupId.length > 0) {
NSMutableSet *newMemberIds = [NSMutableSet setWithArray:dataMessage.group.members];
for (NSString *recipientId in newMemberIds) {
if (!recipientId.isValidE164) {
OWSLogVerbose(
@"incoming group update has invalid group member: %@", [self descriptionForEnvelope:envelope]);
OWSFailDebug(@"incoming group update has invalid group member");
return nil;
}
}
// Group messages create the group if it doesn't already exist.
//
// We distinguish between the old group state (if any) and the new group state.
TSGroupThread *_Nullable oldGroupThread = [TSGroupThread threadWithGroupId:groupId transaction:transaction];
if (oldGroupThread) {
// Don't trust other clients; ensure all known group members remain in the
// group unless it is a "quit" message in which case we should only remove
// the quiting member below.
[newMemberIds addObjectsFromArray:oldGroupThread.groupModel.groupMemberIds];
}
switch (dataMessage.group.type) {
case SSKProtoGroupContextTypeUpdate: {
// Ensures that the thread exists but doesn't update it.
TSGroupThread *newGroupThread =
[TSGroupThread getOrCreateThreadWithGroupId:groupId transaction:transaction];
uint64_t now = [NSDate ows_millisecondTimeStamp];
TSGroupModel *newGroupModel = [[TSGroupModel alloc] initWithTitle:dataMessage.group.name
memberIds:newMemberIds.allObjects
image:oldGroupThread.groupModel.groupImage
groupId:dataMessage.group.id];
NSString *updateGroupInfo = [newGroupThread.groupModel getInfoStringAboutUpdateTo:newGroupModel
contactsManager:self.contactsManager];
newGroupThread.groupModel = newGroupModel;
[newGroupThread saveWithTransaction:transaction];
TSInfoMessage *infoMessage = [[TSInfoMessage alloc] initWithTimestamp:now
inThread:newGroupThread
messageType:TSInfoMessageTypeGroupUpdate
customMessage:updateGroupInfo];
[infoMessage saveWithTransaction:transaction];
if (dataMessage.hasExpireTimer && dataMessage.expireTimer > 0) {
[[OWSDisappearingMessagesJob sharedJob]
becomeConsistentWithDisappearingDuration:dataMessage.expireTimer
thread:newGroupThread
appearBeforeTimestamp:now
createdByRemoteContactName:nil
createdInExistingGroup:YES
transaction:transaction];
}
return nil;
}
case SSKProtoGroupContextTypeQuit: {
if (!oldGroupThread) {
OWSLogWarn(@"ignoring quit group message from unknown group.");
return nil;
}
[newMemberIds removeObject:envelope.source];
oldGroupThread.groupModel.groupMemberIds = [newMemberIds.allObjects mutableCopy];
[oldGroupThread saveWithTransaction:transaction];
NSString *nameString = [self.contactsManager displayNameForPhoneIdentifier:envelope.source];
NSString *updateGroupInfo =
[NSString stringWithFormat:NSLocalizedString(@"GROUP_MEMBER_LEFT", @""), nameString];
[[[TSInfoMessage alloc] initWithTimestamp:[NSDate ows_millisecondTimeStamp]
inThread:oldGroupThread
messageType:TSInfoMessageTypeGroupUpdate
customMessage:updateGroupInfo] saveWithTransaction:transaction];
return nil;
}
case SSKProtoGroupContextTypeDeliver: {
if (!oldGroupThread) {
OWSFailDebug(@"ignoring deliver group message from unknown group.");
return nil;
}
if (body.length == 0 && attachmentIds.count < 1 && !contact) {
OWSLogWarn(@"ignoring empty incoming message from: %@ for group: %@ with timestamp: %lu",
envelopeAddress(envelope),
groupId,
(unsigned long)timestamp);
return nil;
}
TSQuotedMessage *_Nullable quotedMessage = [TSQuotedMessage quotedMessageForDataMessage:dataMessage
thread:oldGroupThread
transaction:transaction];
OWSLogDebug(@"incoming message from: %@ for group: %@ with timestamp: %lu",
envelopeAddress(envelope),
groupId,
(unsigned long)timestamp);
TSIncomingMessage *incomingMessage =
[[TSIncomingMessage alloc] initIncomingMessageWithTimestamp:timestamp
inThread:oldGroupThread
authorId:envelope.source
sourceDeviceId:envelope.sourceDevice
messageBody:body
attachmentIds:attachmentIds
expiresInSeconds:dataMessage.expireTimer
quotedMessage:quotedMessage
contactShare:contact];
[self finalizeIncomingMessage:incomingMessage
thread:oldGroupThread
envelope:envelope
transaction:transaction];
return incomingMessage;
}
default: {
OWSLogWarn(@"Ignoring unknown group message type: %d", (int)dataMessage.group.type);
return nil;
}
}
} else {
if (body.length == 0 && attachmentIds.count < 1 && !contact) {
OWSLogWarn(@"ignoring empty incoming message from: %@ with timestamp: %lu",
envelopeAddress(envelope),
(unsigned long)timestamp);
return nil;
}
OWSLogDebug(
@"incoming message from: %@ with timestamp: %lu", envelopeAddress(envelope), (unsigned long)timestamp);
TSContactThread *thread =
[TSContactThread getOrCreateThreadWithContactId:envelope.source transaction:transaction];
TSQuotedMessage *_Nullable quotedMessage = [TSQuotedMessage quotedMessageForDataMessage:dataMessage
thread:thread
transaction:transaction];
TSIncomingMessage *incomingMessage =
[[TSIncomingMessage alloc] initIncomingMessageWithTimestamp:timestamp
inThread:thread
authorId:[thread contactIdentifier]
sourceDeviceId:envelope.sourceDevice
messageBody:body
attachmentIds:attachmentIds
expiresInSeconds:dataMessage.expireTimer
quotedMessage:quotedMessage
contactShare:contact];
[self finalizeIncomingMessage:incomingMessage
thread:thread
envelope:envelope
transaction:transaction];
return incomingMessage;
}
}
- (void)finalizeIncomingMessage:(TSIncomingMessage *)incomingMessage
thread:(TSThread *)thread
envelope:(SSKProtoEnvelope *)envelope
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return;
}
if (!thread) {
OWSFailDebug(@"Missing thread.");
return;
}
if (!incomingMessage) {
OWSFailDebug(@"Missing incomingMessage.");
return;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return;
}
[incomingMessage saveWithTransaction:transaction];
// Any messages sent from the current user - from this device or another - should be automatically marked as read.
if ([envelope.source isEqualToString:TSAccountManager.localNumber]) {
// Don't send a read receipt for messages sent by ourselves.
[incomingMessage markAsReadAtTimestamp:envelope.timestamp sendReadReceipt:NO transaction:transaction];
}
TSQuotedMessage *_Nullable quotedMessage = incomingMessage.quotedMessage;
if (quotedMessage && quotedMessage.thumbnailAttachmentPointerId) {
// We weren't able to derive a local thumbnail, so we'll fetch the referenced attachment.
TSAttachmentPointer *attachmentPointer =
[TSAttachmentPointer fetchObjectWithUniqueID:quotedMessage.thumbnailAttachmentPointerId
transaction:transaction];
if ([attachmentPointer isKindOfClass:[TSAttachmentPointer class]]) {
OWSAttachmentsProcessor *attachmentProcessor =
[[OWSAttachmentsProcessor alloc] initWithAttachmentPointer:attachmentPointer
networkManager:self.networkManager];
OWSLogDebug(@"downloading thumbnail for message: %lu", (unsigned long)incomingMessage.timestamp);
[attachmentProcessor fetchAttachmentsForMessage:incomingMessage
transaction:transaction
success:^(TSAttachmentStream *attachmentStream) {
[self.dbConnection asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
[incomingMessage setQuotedMessageThumbnailAttachmentStream:attachmentStream];
[incomingMessage saveWithTransaction:transaction];
}];
}
failure:^(NSError *error) {
OWSLogWarn(@"failed to fetch thumbnail for message: %lu with error: %@",
(unsigned long)incomingMessage.timestamp,
error);
}];
}
}
OWSContact *_Nullable contact = incomingMessage.contactShare;
if (contact && contact.avatarAttachmentId) {
TSAttachmentPointer *attachmentPointer =
[TSAttachmentPointer fetchObjectWithUniqueID:contact.avatarAttachmentId transaction:transaction];
if (![attachmentPointer isKindOfClass:[TSAttachmentPointer class]]) {
OWSFailDebug(@"avatar attachmentPointer was unexpectedly nil");
} else {
OWSAttachmentsProcessor *attachmentProcessor =
[[OWSAttachmentsProcessor alloc] initWithAttachmentPointer:attachmentPointer
networkManager:self.networkManager];
OWSLogDebug(@"downloading contact avatar for message: %lu", (unsigned long)incomingMessage.timestamp);
[attachmentProcessor fetchAttachmentsForMessage:incomingMessage
transaction:transaction
success:^(TSAttachmentStream *attachmentStream) {
[self.dbConnection asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
[incomingMessage touchWithTransaction:transaction];
}];
}
failure:^(NSError *error) {
OWSLogWarn(@"failed to fetch contact avatar for message: %lu with error: %@",
(unsigned long)incomingMessage.timestamp,
error);
}];
}
}
// In case we already have a read receipt for this new message (this happens sometimes).
[OWSReadReceiptManager.sharedManager applyEarlyReadReceiptsForIncomingMessage:incomingMessage
transaction:transaction];
[[OWSDisappearingMessagesJob sharedJob] becomeConsistentWithConfigurationForMessage:incomingMessage
contactsManager:self.contactsManager
transaction:transaction];
// Update thread preview in inbox
[thread touchWithTransaction:transaction];
[SSKEnvironment.shared.notificationsManager notifyUserForIncomingMessage:incomingMessage
inThread:thread
contactsManager:self.contactsManager
transaction:transaction];
}
#pragma mark - helpers
- (BOOL)isDataMessageGroupAvatarUpdate:(SSKProtoDataMessage *)dataMessage
{
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return NO;
}
return (dataMessage.group != nil && dataMessage.group.type == SSKProtoGroupContextTypeUpdate
&& dataMessage.group.avatar != nil);
}
/**
* @returns
* Group or Contact thread for message, creating a new contact thread if necessary,
* but never creating a new group thread.
*/
- (nullable TSThread *)threadForEnvelope:(SSKProtoEnvelope *)envelope
dataMessage:(SSKProtoDataMessage *)dataMessage
transaction:(YapDatabaseReadWriteTransaction *)transaction
{
if (!envelope) {
OWSFailDebug(@"Missing envelope.");
return nil;
}
if (!dataMessage) {
OWSFailDebug(@"Missing dataMessage.");
return nil;
}
if (!transaction) {
OWSFail(@"Missing transaction.");
return nil;
}
if (dataMessage.group) {
NSData *groupId = dataMessage.group.id;
OWSAssertDebug(groupId.length > 0);
TSGroupThread *_Nullable groupThread = [TSGroupThread threadWithGroupId:groupId transaction:transaction];
// This method should only be called from a code path that has already verified
// that this is a "known" group.
OWSAssertDebug(groupThread);
return groupThread;
} else {
return [TSContactThread getOrCreateThreadWithContactId:envelope.source transaction:transaction];
}
}
@end
NS_ASSUME_NONNULL_END