mirror of
https://github.com/oxen-io/session-ios.git
synced 2023-12-13 21:30:14 +01:00
1757 lines
73 KiB
Objective-C
1757 lines
73 KiB
Objective-C
//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "OWSMessageSender.h"
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#import "AppContext.h"
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#import "NSData+keyVersionByte.h"
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#import "NSData+messagePadding.h"
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#import "NSError+MessageSending.h"
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#import "OWSBackgroundTask.h"
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#import "OWSBlockingManager.h"
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#import "OWSContact.h"
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#import "OWSDevice.h"
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#import "OWSDisappearingMessagesJob.h"
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#import "OWSDispatch.h"
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#import "OWSError.h"
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#import "OWSIdentityManager.h"
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#import "OWSMessageServiceParams.h"
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#import "OWSOperation.h"
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#import "OWSOutgoingSentMessageTranscript.h"
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#import "OWSOutgoingSyncMessage.h"
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#import "OWSPrimaryStorage+PreKeyStore.h"
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#import "OWSPrimaryStorage+SignedPreKeyStore.h"
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#import "OWSPrimaryStorage+sessionStore.h"
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#import "OWSPrimaryStorage.h"
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#import "OWSRequestFactory.h"
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#import "OWSUploadOperation.h"
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#import "PreKeyBundle+jsonDict.h"
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#import "SSKEnvironment.h"
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#import "SignalRecipient.h"
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#import "TSAccountManager.h"
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#import "TSAttachmentStream.h"
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#import "TSContactThread.h"
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#import "TSGroupThread.h"
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#import "TSIncomingMessage.h"
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#import "TSInfoMessage.h"
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#import "TSInvalidIdentityKeySendingErrorMessage.h"
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#import "TSNetworkManager.h"
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#import "TSOutgoingMessage.h"
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#import "TSPreKeyManager.h"
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#import "TSQuotedMessage.h"
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#import "TSRequest.h"
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#import "TSSocketManager.h"
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#import "TSThread.h"
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#import <AxolotlKit/AxolotlExceptions.h>
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#import <AxolotlKit/CipherMessage.h>
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#import <AxolotlKit/PreKeyBundle.h>
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#import <AxolotlKit/SessionBuilder.h>
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#import <AxolotlKit/SessionCipher.h>
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#import <PromiseKit/AnyPromise.h>
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#import <SignalCoreKit/NSData+OWS.h>
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#import <SignalCoreKit/NSDate+OWS.h>
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#import <SignalCoreKit/SCKExceptionWrapper.h>
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#import <SignalCoreKit/Threading.h>
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#import <SignalMetadataKit/SignalMetadataKit-Swift.h>
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#import <SignalServiceKit/SignalServiceKit-Swift.h>
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NS_ASSUME_NONNULL_BEGIN
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const NSUInteger kOversizeTextMessageSizeThreshold = 2 * 1024;
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NSError *SSKEnsureError(NSError *_Nullable error, OWSErrorCode fallbackCode, NSString *fallbackErrorDescription)
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{
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if (error) {
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return error;
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}
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OWSCFailDebug(@"Using fallback error.");
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return OWSErrorWithCodeDescription(fallbackCode, fallbackErrorDescription);
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}
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#pragma mark -
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void AssertIsOnSendingQueue()
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{
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#ifdef DEBUG
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if (@available(iOS 10.0, *)) {
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dispatch_assert_queue([OWSDispatch sendingQueue]);
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} // else, skip assert as it's a development convenience.
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#endif
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}
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#pragma mark -
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/**
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* OWSSendMessageOperation encapsulates all the work associated with sending a message, e.g. uploading attachments,
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* getting proper keys, and retrying upon failure.
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*
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* Used by `OWSMessageSender` to serialize message sending, ensuring that messages are emitted in the order they
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* were sent.
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*/
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@interface OWSSendMessageOperation : OWSOperation
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- (instancetype)init NS_UNAVAILABLE;
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- (instancetype)initWithMessage:(TSOutgoingMessage *)message
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messageSender:(OWSMessageSender *)messageSender
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dbConnection:(YapDatabaseConnection *)dbConnection
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success:(void (^)(void))aSuccessHandler
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failure:(void (^)(NSError * error))aFailureHandler NS_DESIGNATED_INITIALIZER;
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@end
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#pragma mark -
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@interface OWSMessageSender (OWSSendMessageOperation)
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- (void)sendMessageToService:(TSOutgoingMessage *)message
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success:(void (^)(void))successHandler
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failure:(RetryableFailureHandler)failureHandler;
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@end
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#pragma mark -
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@interface OWSSendMessageOperation ()
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@property (nonatomic, readonly) TSOutgoingMessage *message;
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@property (nonatomic, readonly) OWSMessageSender *messageSender;
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@property (nonatomic, readonly) YapDatabaseConnection *dbConnection;
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@property (nonatomic, readonly) void (^successHandler)(void);
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@property (nonatomic, readonly) void (^failureHandler)(NSError * error);
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@end
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#pragma mark -
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@implementation OWSSendMessageOperation
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- (instancetype)initWithMessage:(TSOutgoingMessage *)message
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messageSender:(OWSMessageSender *)messageSender
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dbConnection:(YapDatabaseConnection *)dbConnection
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success:(void (^)(void))successHandler
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failure:(void (^)(NSError * error))failureHandler
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{
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self = [super init];
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if (!self) {
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return self;
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}
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self.remainingRetries = 6;
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_message = message;
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_messageSender = messageSender;
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_dbConnection = dbConnection;
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_successHandler = successHandler;
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_failureHandler = failureHandler;
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return self;
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}
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#pragma mark - OWSOperation overrides
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- (nullable NSError *)checkForPreconditionError
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{
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NSError *_Nullable error = [super checkForPreconditionError];
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if (error) {
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return error;
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}
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// Sanity check preconditions
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if (self.message.hasAttachments) {
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[self.dbConnection readWithBlock:^(YapDatabaseReadTransaction * transaction) {
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TSAttachmentStream *attachmentStream
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= (TSAttachmentStream *)[self.message attachmentWithTransaction:transaction];
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OWSAssertDebug(attachmentStream);
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OWSAssertDebug([attachmentStream isKindOfClass:[TSAttachmentStream class]]);
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OWSAssertDebug(attachmentStream.serverId);
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OWSAssertDebug(attachmentStream.isUploaded);
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}];
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}
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return nil;
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}
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- (void)run
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{
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// If the message has been deleted, abort send.
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if (self.message.shouldBeSaved && ![TSOutgoingMessage fetchObjectWithUniqueID:self.message.uniqueId]) {
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OWSLogInfo(@"aborting message send; message deleted.");
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NSError *error = OWSErrorWithCodeDescription(
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OWSErrorCodeMessageDeletedBeforeSent, @"Message was deleted before it could be sent.");
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error.isFatal = YES;
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[self reportError:error];
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return;
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}
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[self.messageSender sendMessageToService:self.message
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success:^{
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[self reportSuccess];
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}
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failure:^(NSError *error) {
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[self reportError:error];
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}];
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}
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- (void)didSucceed
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{
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if (self.message.messageState != TSOutgoingMessageStateSent) {
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OWSFailDebug(@"unexpected message status: %@", self.message.statusDescription);
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}
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self.successHandler();
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}
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- (void)didFailWithError:(NSError *)error
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{
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[self.message updateWithSendingError:error];
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OWSLogDebug(@"failed with error: %@", error);
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self.failureHandler(error);
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}
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@end
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#pragma mark -
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NSString *const OWSMessageSenderInvalidDeviceException = @"InvalidDeviceException";
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NSString *const OWSMessageSenderRateLimitedException = @"RateLimitedException";
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@interface OWSMessageSender ()
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@property (nonatomic, readonly) OWSPrimaryStorage *primaryStorage;
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@property (nonatomic, readonly) YapDatabaseConnection *dbConnection;
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@property (atomic, readonly) NSMutableDictionary<NSString *, NSOperationQueue *> *sendingQueueMap;
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@end
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#pragma mark -
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@implementation OWSMessageSender
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- (instancetype)initWithPrimaryStorage:(OWSPrimaryStorage *)primaryStorage
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{
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self = [super init];
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if (!self) {
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return self;
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}
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_primaryStorage = primaryStorage;
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_sendingQueueMap = [NSMutableDictionary new];
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_dbConnection = primaryStorage.newDatabaseConnection;
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OWSSingletonAssert();
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return self;
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}
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#pragma mark - Dependencies
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- (id<ContactsManagerProtocol>)contactsManager
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{
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OWSAssertDebug(SSKEnvironment.shared.contactsManager);
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return SSKEnvironment.shared.contactsManager;
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}
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- (OWSBlockingManager *)blockingManager
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{
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OWSAssertDebug(SSKEnvironment.shared.blockingManager);
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return SSKEnvironment.shared.blockingManager;
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}
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- (TSNetworkManager *)networkManager
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{
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OWSAssertDebug(SSKEnvironment.shared.networkManager);
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return SSKEnvironment.shared.networkManager;
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}
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- (id<OWSUDManager>)udManager
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{
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OWSAssertDebug(SSKEnvironment.shared.udManager);
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return SSKEnvironment.shared.udManager;
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}
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- (TSAccountManager *)tsAccountManager
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{
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return TSAccountManager.sharedInstance;
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}
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- (OWSIdentityManager *)identityManager
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{
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return SSKEnvironment.shared.identityManager;
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}
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#pragma mark -
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- (NSOperationQueue *)sendingQueueForMessage:(TSOutgoingMessage *)message
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{
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OWSAssertDebug(message);
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NSString *kDefaultQueueKey = @"kDefaultQueueKey";
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NSString *queueKey = message.uniqueThreadId ?: kDefaultQueueKey;
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OWSAssertDebug(queueKey.length > 0);
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if ([kDefaultQueueKey isEqualToString:queueKey]) {
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// when do we get here?
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OWSLogDebug(@"using default message queue");
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}
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@synchronized(self)
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{
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NSOperationQueue *sendingQueue = self.sendingQueueMap[queueKey];
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if (!sendingQueue) {
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sendingQueue = [NSOperationQueue new];
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sendingQueue.qualityOfService = NSOperationQualityOfServiceUserInitiated;
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sendingQueue.maxConcurrentOperationCount = 1;
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sendingQueue.name = [NSString stringWithFormat:@"%@:%@", self.logTag, queueKey];
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self.sendingQueueMap[queueKey] = sendingQueue;
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}
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return sendingQueue;
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}
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}
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- (void)enqueueMessage:(TSOutgoingMessage *)message
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success:(void (^)(void))successHandler
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failure:(void (^)(NSError *error))failureHandler
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{
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OWSAssertDebug(message);
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if (message.body.length > 0) {
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OWSAssertDebug([message.body lengthOfBytesUsingEncoding:NSUTF8StringEncoding] <= kOversizeTextMessageSizeThreshold);
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}
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
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__block NSArray<TSAttachmentStream *> *quotedThumbnailAttachments = @[];
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__block TSAttachmentStream *_Nullable contactShareAvatarAttachment;
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// This method will use a read/write transaction. This transaction
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// will block until any open read/write transactions are complete.
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//
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// That's key - we don't want to send any messages in response
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// to an incoming message until processing of that batch of messages
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// is complete. For example, we wouldn't want to auto-reply to a
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// group info request before that group info request's batch was
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// finished processing. Otherwise, we might receive a delivery
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// notice for a group update we hadn't yet saved to the db.
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//
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// So we're using YDB behavior to ensure this invariant, which is a bit
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// unorthodox.
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[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
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if (message.quotedMessage) {
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quotedThumbnailAttachments =
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[message.quotedMessage createThumbnailAttachmentsIfNecessaryWithTransaction:transaction];
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}
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if (message.contactShare.avatarAttachmentId != nil) {
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TSAttachment *avatarAttachment = [message.contactShare avatarAttachmentWithTransaction:transaction];
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if ([avatarAttachment isKindOfClass:[TSAttachmentStream class]]) {
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contactShareAvatarAttachment = (TSAttachmentStream *)avatarAttachment;
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} else {
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OWSFailDebug(@"unexpected avatarAttachment: %@", avatarAttachment);
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}
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}
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// All outgoing messages should be saved at the time they are enqueued.
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[message saveWithTransaction:transaction];
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// When we start a message send, all "failed" recipients should be marked as "sending".
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[message updateWithMarkingAllUnsentRecipientsAsSendingWithTransaction:transaction];
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}];
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NSOperationQueue *sendingQueue = [self sendingQueueForMessage:message];
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OWSSendMessageOperation *sendMessageOperation =
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[[OWSSendMessageOperation alloc] initWithMessage:message
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messageSender:self
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dbConnection:self.dbConnection
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success:successHandler
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failure:failureHandler];
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// TODO de-dupe attachment enque logic.
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if (message.hasAttachments) {
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OWSUploadOperation *uploadAttachmentOperation =
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[[OWSUploadOperation alloc] initWithAttachmentId:message.attachmentIds.firstObject
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dbConnection:self.dbConnection];
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[sendMessageOperation addDependency:uploadAttachmentOperation];
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[sendingQueue addOperation:uploadAttachmentOperation];
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}
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// Though we currently only ever expect at most one thumbnail, the proto data model
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// suggests this could change. The logic is intended to work with multiple, but
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// if we ever actually want to send multiple, we should do more testing.
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OWSAssertDebug(quotedThumbnailAttachments.count <= 1);
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for (TSAttachmentStream *thumbnailAttachment in quotedThumbnailAttachments) {
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OWSAssertDebug(message.quotedMessage);
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OWSUploadOperation *uploadQuoteThumbnailOperation =
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[[OWSUploadOperation alloc] initWithAttachmentId:thumbnailAttachment.uniqueId
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dbConnection:self.dbConnection];
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// TODO put attachment uploads on a (lowly) concurrent queue
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[sendMessageOperation addDependency:uploadQuoteThumbnailOperation];
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[sendingQueue addOperation:uploadQuoteThumbnailOperation];
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}
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if (contactShareAvatarAttachment != nil) {
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OWSAssertDebug(message.contactShare);
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OWSUploadOperation *uploadAvatarOperation =
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[[OWSUploadOperation alloc] initWithAttachmentId:contactShareAvatarAttachment.uniqueId
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dbConnection:self.dbConnection];
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// TODO put attachment uploads on a (lowly) concurrent queue
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[sendMessageOperation addDependency:uploadAvatarOperation];
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[sendingQueue addOperation:uploadAvatarOperation];
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}
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[sendingQueue addOperation:sendMessageOperation];
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});
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}
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- (void)enqueueTemporaryAttachment:(DataSource *)dataSource
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contentType:(NSString *)contentType
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inMessage:(TSOutgoingMessage *)message
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success:(void (^)(void))successHandler
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failure:(void (^)(NSError *error))failureHandler
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{
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OWSAssertDebug(dataSource);
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void (^successWithDeleteHandler)(void) = ^() {
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successHandler();
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OWSLogDebug(@"Removing successful temporary attachment message with attachment ids: %@", message.attachmentIds);
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[message remove];
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};
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void (^failureWithDeleteHandler)(NSError *error) = ^(NSError *error) {
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failureHandler(error);
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OWSLogDebug(@"Removing failed temporary attachment message with attachment ids: %@", message.attachmentIds);
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[message remove];
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};
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[self enqueueAttachment:dataSource
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contentType:contentType
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sourceFilename:nil
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inMessage:message
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success:successWithDeleteHandler
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failure:failureWithDeleteHandler];
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}
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- (void)enqueueAttachment:(DataSource *)dataSource
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contentType:(NSString *)contentType
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sourceFilename:(nullable NSString *)sourceFilename
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inMessage:(TSOutgoingMessage *)message
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success:(void (^)(void))successHandler
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failure:(void (^)(NSError *error))failureHandler
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{
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OWSAssertDebug(dataSource);
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dispatch_async([OWSDispatch attachmentsQueue], ^{
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TSAttachmentStream *attachmentStream =
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[[TSAttachmentStream alloc] initWithContentType:contentType
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byteCount:(UInt32)dataSource.dataLength
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sourceFilename:sourceFilename];
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if (message.isVoiceMessage) {
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attachmentStream.attachmentType = TSAttachmentTypeVoiceMessage;
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}
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if (![attachmentStream writeDataSource:dataSource]) {
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OWSProdError([OWSAnalyticsEvents messageSenderErrorCouldNotWriteAttachment]);
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NSError *error = OWSErrorMakeWriteAttachmentDataError();
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return failureHandler(error);
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}
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[attachmentStream save];
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[message.attachmentIds addObject:attachmentStream.uniqueId];
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if (sourceFilename) {
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message.attachmentFilenameMap[attachmentStream.uniqueId] = sourceFilename;
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}
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[self enqueueMessage:message success:successHandler failure:failureHandler];
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});
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}
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- (void)sendMessageToService:(TSOutgoingMessage *)message
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success:(void (^)(void))success
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failure:(RetryableFailureHandler)failure
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{
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[self.udManager
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ensureSenderCertificateObjCWithSuccess:^(SMKSenderCertificate *senderCertificate) {
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dispatch_async([OWSDispatch sendingQueue], ^{
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[self sendMessageToService:message senderCertificate:senderCertificate success:success failure:failure];
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});
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}
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failure:^(NSError *error) {
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OWSLogError(@"Could not obtain UD sender certificate: %@", error);
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// Proceed using non-UD message sends.
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dispatch_async([OWSDispatch sendingQueue], ^{
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[self sendMessageToService:message senderCertificate:nil success:success failure:failure];
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});
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}];
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}
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- (nullable NSArray<NSString *> *)unsentRecipientsForMessage:(TSOutgoingMessage *)message
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thread:(nullable TSThread *)thread
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error:(NSError **)errorHandle
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{
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OWSAssertDebug(message);
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OWSAssertDebug(errorHandle);
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NSMutableSet<NSString *> *recipientIds = [NSMutableSet new];
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if ([message isKindOfClass:[OWSOutgoingSyncMessage class]]) {
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[recipientIds addObject:[TSAccountManager localNumber]];
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} else if (thread.isGroupThread) {
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TSGroupThread *groupThread = (TSGroupThread *)thread;
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// Send to the intersection of:
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//
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// * "sending" recipients of the message.
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// * members of the group.
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//
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// I.e. try to send a message IFF:
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//
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// * The recipient was in the group when the message was first tried to be sent.
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// * The recipient is still in the group.
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// * The recipient is in the "sending" state.
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[recipientIds addObjectsFromArray:message.sendingRecipientIds];
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// Only send to members in the latest known group member list.
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[recipientIds intersectSet:[NSSet setWithArray:groupThread.groupModel.groupMemberIds]];
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|
|
if ([recipientIds containsObject:TSAccountManager.localNumber]) {
|
|
OWSFailDebug(@"Message send recipients should not include self.");
|
|
}
|
|
} else if ([thread isKindOfClass:[TSContactThread class]]) {
|
|
NSString *recipientContactId = ((TSContactThread *)thread).contactIdentifier;
|
|
|
|
// Treat 1:1 sends to blocked contacts as failures.
|
|
// If we block a user, don't send 1:1 messages to them. The UI
|
|
// should prevent this from occurring, but in some edge cases
|
|
// you might, for example, have a pending outgoing message when
|
|
// you block them.
|
|
OWSAssertDebug(recipientContactId.length > 0);
|
|
if ([self.blockingManager isRecipientIdBlocked:recipientContactId]) {
|
|
OWSLogInfo(@"skipping 1:1 send to blocked contact: %@", recipientContactId);
|
|
NSError *error = OWSErrorMakeMessageSendFailedDueToBlockListError();
|
|
[error setIsRetryable:NO];
|
|
*errorHandle = error;
|
|
return nil;
|
|
}
|
|
|
|
[recipientIds addObject:recipientContactId];
|
|
|
|
if ([recipientIds containsObject:TSAccountManager.localNumber]) {
|
|
OWSFailDebug(@"Message send recipients should not include self.");
|
|
}
|
|
} else {
|
|
// Neither a group nor contact thread? This should never happen.
|
|
OWSFailDebug(@"Unknown message type: %@", [message class]);
|
|
NSError *error = OWSErrorMakeFailedToSendOutgoingMessageError();
|
|
[error setIsRetryable:NO];
|
|
*errorHandle = error;
|
|
return nil;
|
|
}
|
|
|
|
[recipientIds minusSet:[NSSet setWithArray:self.blockingManager.blockedPhoneNumbers]];
|
|
return recipientIds.allObjects;
|
|
}
|
|
|
|
- (NSArray<SignalRecipient *> *)recipientsForRecipientIds:(NSArray<NSString *> *)recipientIds
|
|
{
|
|
OWSAssertDebug(recipientIds.count > 0);
|
|
|
|
NSMutableArray<SignalRecipient *> *recipients = [NSMutableArray new];
|
|
[self.dbConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
|
|
for (NSString *recipientId in recipientIds) {
|
|
SignalRecipient *recipient =
|
|
[SignalRecipient getOrBuildUnsavedRecipientForRecipientId:recipientId transaction:transaction];
|
|
[recipients addObject:recipient];
|
|
}
|
|
}];
|
|
return [recipients copy];
|
|
}
|
|
|
|
- (AnyPromise *)sendPromiseForRecipients:(NSArray<SignalRecipient *> *)recipients
|
|
message:(TSOutgoingMessage *)message
|
|
thread:(nullable TSThread *)thread
|
|
senderCertificate:(nullable SMKSenderCertificate *)senderCertificate
|
|
selfUDAccessKey:(nullable SMKUDAccessKey *)selfUDAccessKey
|
|
sendErrors:(NSMutableArray<NSError *> *)sendErrors
|
|
{
|
|
OWSAssertDebug(recipients.count > 0);
|
|
OWSAssertDebug(message);
|
|
OWSAssertDebug(sendErrors);
|
|
|
|
NSMutableArray<AnyPromise *> *sendPromises = [NSMutableArray array];
|
|
|
|
for (SignalRecipient *recipient in recipients) {
|
|
// Use chained promises to make the code more readable.
|
|
AnyPromise *sendPromise = [AnyPromise promiseWithResolverBlock:^(PMKResolver resolve) {
|
|
SMKUDAccessKey *_Nullable theirUDAccessKey;
|
|
if (senderCertificate != nil && selfUDAccessKey != nil) {
|
|
theirUDAccessKey = [self.udManager udSendAccessKeyForRecipientId:recipient.recipientId];
|
|
}
|
|
|
|
OWSMessageSend *messageSend = [[OWSMessageSend alloc] initWithMessage:message
|
|
thread:thread
|
|
recipient:recipient
|
|
senderCertificate:senderCertificate
|
|
udAccessKey:theirUDAccessKey
|
|
localNumber:self.tsAccountManager.localNumber
|
|
success:^{
|
|
// The value doesn't matter, we just need any non-NSError value.
|
|
resolve(@(1));
|
|
}
|
|
failure:^(NSError *error) {
|
|
@synchronized(sendErrors) {
|
|
[sendErrors addObject:error];
|
|
}
|
|
resolve(error);
|
|
}];
|
|
[self sendMessageToRecipient:messageSend];
|
|
}];
|
|
[sendPromises addObject:sendPromise];
|
|
}
|
|
|
|
// We use PMKJoin(), not PMKWhen(), because we don't want the
|
|
// completion promise to execute until _all_ send promises
|
|
// have either succeeded or failed. PMKWhen() executes as
|
|
// soon as any of its input promises fail.
|
|
return PMKJoin(sendPromises);
|
|
}
|
|
|
|
- (void)sendMessageToService:(TSOutgoingMessage *)message
|
|
senderCertificate:(nullable SMKSenderCertificate *)senderCertificate
|
|
success:(void (^)(void))successHandlerParam
|
|
failure:(RetryableFailureHandler)failureHandlerParam
|
|
{
|
|
AssertIsOnSendingQueue();
|
|
|
|
SMKUDAccessKey *_Nullable selfUDAccessKey;
|
|
if (senderCertificate) {
|
|
selfUDAccessKey = [self.udManager udSendAccessKeyForRecipientId:self.tsAccountManager.localNumber];
|
|
}
|
|
|
|
void (^successHandler)(void) = ^() {
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
[self handleMessageSentLocally:message
|
|
senderCertificate:senderCertificate
|
|
selfUDAccessKey:selfUDAccessKey
|
|
success:^{
|
|
successHandlerParam();
|
|
}
|
|
failure:^(NSError *error) {
|
|
OWSLogError(@"Error sending sync message for message: %@ timestamp: %llu",
|
|
message.class,
|
|
message.timestamp);
|
|
|
|
failureHandlerParam(error);
|
|
}];
|
|
});
|
|
};
|
|
void (^failureHandler)(NSError *) = ^(NSError *error) {
|
|
if (message.wasSentToAnyRecipient) {
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
[self handleMessageSentLocally:message
|
|
senderCertificate:senderCertificate
|
|
selfUDAccessKey:selfUDAccessKey
|
|
success:^{
|
|
failureHandlerParam(error);
|
|
}
|
|
failure:^(NSError *syncError) {
|
|
OWSLogError(@"Error sending sync message for message: %@ timestamp: %llu, %@",
|
|
message.class,
|
|
message.timestamp,
|
|
syncError);
|
|
|
|
// Discard the "sync message" error in favor of the
|
|
// original error.
|
|
failureHandlerParam(error);
|
|
}];
|
|
});
|
|
return;
|
|
}
|
|
failureHandlerParam(error);
|
|
};
|
|
|
|
TSThread *_Nullable thread = message.thread;
|
|
|
|
// In the "self-send" special case, we ony need to send a sync message with a delivery receipt.
|
|
if ([thread isKindOfClass:[TSContactThread class]] &&
|
|
[((TSContactThread *)thread).contactIdentifier isEqualToString:[TSAccountManager localNumber]]) {
|
|
// Send to self.
|
|
OWSAssertDebug(message.recipientIds.count == 1);
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
for (NSString *recipientId in message.sendingRecipientIds) {
|
|
[message updateWithReadRecipientId:recipientId
|
|
readTimestamp:message.timestampForSorting
|
|
transaction:transaction];
|
|
}
|
|
}];
|
|
successHandler();
|
|
return;
|
|
}
|
|
|
|
if (thread.isGroupThread) {
|
|
[self saveInfoMessageForGroupMessage:message inThread:thread];
|
|
}
|
|
|
|
NSError *error;
|
|
NSArray<NSString *> *_Nullable recipientIds = [self unsentRecipientsForMessage:message thread:thread error:&error];
|
|
if (error || !recipientIds) {
|
|
error = SSKEnsureError(
|
|
error, OWSErrorCodeMessageSendNoValidRecipients, @"Could not build recipients list for message.");
|
|
[error setIsRetryable:NO];
|
|
return failureHandler(error);
|
|
}
|
|
|
|
// Mark skipped recipients as such. We skip because:
|
|
//
|
|
// * Recipient is no longer in the group.
|
|
// * Recipient is blocked.
|
|
//
|
|
// Elsewhere, we skip recipient if their Signal account has been deactivated.
|
|
NSMutableSet<NSString *> *obsoleteRecipientIds = [NSMutableSet setWithArray:message.sendingRecipientIds];
|
|
[obsoleteRecipientIds minusSet:[NSSet setWithArray:recipientIds]];
|
|
if (obsoleteRecipientIds.count > 0) {
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
for (NSString *recipientId in obsoleteRecipientIds) {
|
|
// Mark this recipient as "skipped".
|
|
[message updateWithSkippedRecipient:recipientId transaction:transaction];
|
|
}
|
|
}];
|
|
}
|
|
|
|
if (recipientIds.count < 1) {
|
|
// All recipients are already sent or can be skipped.
|
|
successHandler();
|
|
return;
|
|
}
|
|
|
|
NSArray<SignalRecipient *> *recipients = [self recipientsForRecipientIds:recipientIds];
|
|
|
|
BOOL isGroupSend = (thread && thread.isGroupThread);
|
|
NSMutableArray<NSError *> *sendErrors = [NSMutableArray array];
|
|
AnyPromise *sendPromise = [self sendPromiseForRecipients:recipients
|
|
message:message
|
|
thread:thread
|
|
senderCertificate:senderCertificate
|
|
selfUDAccessKey:selfUDAccessKey
|
|
sendErrors:sendErrors]
|
|
.then(^(id value) {
|
|
successHandler();
|
|
});
|
|
sendPromise.catch(^(id failure) {
|
|
NSError *firstRetryableError = nil;
|
|
NSError *firstNonRetryableError = nil;
|
|
|
|
NSArray<NSError *> *sendErrorsCopy;
|
|
@synchronized(sendErrors) {
|
|
sendErrorsCopy = [sendErrors copy];
|
|
}
|
|
|
|
for (NSError *error in sendErrorsCopy) {
|
|
// Some errors should be ignored when sending messages
|
|
// to groups. See discussion on
|
|
// NSError (OWSMessageSender) category.
|
|
if (isGroupSend && [error shouldBeIgnoredForGroups]) {
|
|
continue;
|
|
}
|
|
|
|
// Some errors should never be retried, in order to avoid
|
|
// hitting rate limits, for example. Unfortunately, since
|
|
// group send retry is all-or-nothing, we need to fail
|
|
// immediately even if some of the other recipients had
|
|
// retryable errors.
|
|
if ([error isFatal]) {
|
|
failureHandler(error);
|
|
return;
|
|
}
|
|
|
|
if ([error isRetryable] && !firstRetryableError) {
|
|
firstRetryableError = error;
|
|
} else if (![error isRetryable] && !firstNonRetryableError) {
|
|
firstNonRetryableError = error;
|
|
}
|
|
}
|
|
|
|
// If any of the send errors are retryable, we want to retry.
|
|
// Therefore, prefer to propagate a retryable error.
|
|
if (firstRetryableError) {
|
|
return failureHandler(firstRetryableError);
|
|
} else if (firstNonRetryableError) {
|
|
return failureHandler(firstNonRetryableError);
|
|
} else {
|
|
// If we only received errors that we should ignore,
|
|
// consider this send a success, unless the message could
|
|
// not be sent to any recipient.
|
|
if (message.sentRecipientsCount == 0) {
|
|
NSError *error = OWSErrorWithCodeDescription(OWSErrorCodeMessageSendNoValidRecipients,
|
|
NSLocalizedString(@"ERROR_DESCRIPTION_NO_VALID_RECIPIENTS",
|
|
@"Error indicating that an outgoing message had no valid recipients."));
|
|
[error setIsRetryable:NO];
|
|
failureHandler(error);
|
|
} else {
|
|
successHandler();
|
|
}
|
|
}
|
|
});
|
|
[sendPromise retainUntilComplete];
|
|
}
|
|
|
|
- (void)unregisteredRecipient:(SignalRecipient *)recipient
|
|
message:(TSOutgoingMessage *)message
|
|
thread:(TSThread *)thread
|
|
{
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
if (thread.isGroupThread) {
|
|
// Mark as "skipped" group members who no longer have signal accounts.
|
|
[message updateWithSkippedRecipient:recipient.recipientId transaction:transaction];
|
|
}
|
|
|
|
if (![SignalRecipient isRegisteredRecipient:recipient.recipientId transaction:transaction]) {
|
|
return;
|
|
}
|
|
|
|
[SignalRecipient removeUnregisteredRecipient:recipient.recipientId transaction:transaction];
|
|
|
|
[[TSInfoMessage userNotRegisteredMessageInThread:thread recipientId:recipient.recipientId]
|
|
saveWithTransaction:transaction];
|
|
|
|
// TODO: Should we deleteAllSessionsForContact here?
|
|
// If so, we'll need to avoid doing a prekey fetch every
|
|
// time we try to send a message to an unregistered user.
|
|
}];
|
|
}
|
|
|
|
- (nullable NSArray<NSDictionary *> *)deviceMessagesForMessageSendSafe:(OWSMessageSend *)messageSend
|
|
error:(NSError **)errorHandle
|
|
{
|
|
OWSAssertDebug(messageSend);
|
|
OWSAssertDebug(errorHandle);
|
|
AssertIsOnSendingQueue();
|
|
|
|
SignalRecipient *recipient = messageSend.recipient;
|
|
|
|
NSArray<NSDictionary *> *deviceMessages;
|
|
@try {
|
|
deviceMessages = [self deviceMessagesForMessageSendUnsafe:messageSend];
|
|
} @catch (NSException *exception) {
|
|
if ([exception.name isEqualToString:UntrustedIdentityKeyException]) {
|
|
// This *can* happen under normal usage, but it should happen relatively rarely.
|
|
// We expect it to happen whenever Bob reinstalls, and Alice messages Bob before
|
|
// she can pull down his latest identity.
|
|
// If it's happening a lot, we should rethink our profile fetching strategy.
|
|
OWSProdInfo([OWSAnalyticsEvents messageSendErrorFailedDueToUntrustedKey]);
|
|
|
|
NSString *localizedErrorDescriptionFormat
|
|
= NSLocalizedString(@"FAILED_SENDING_BECAUSE_UNTRUSTED_IDENTITY_KEY",
|
|
@"action sheet header when re-sending message which failed because of untrusted identity keys");
|
|
|
|
NSString *localizedErrorDescription =
|
|
[NSString stringWithFormat:localizedErrorDescriptionFormat,
|
|
[self.contactsManager displayNameForPhoneIdentifier:recipient.recipientId]];
|
|
NSError *error = OWSErrorMakeUntrustedIdentityError(localizedErrorDescription, recipient.recipientId);
|
|
|
|
// Key will continue to be unaccepted, so no need to retry. It'll only cause us to hit the Pre-Key request
|
|
// rate limit
|
|
[error setIsRetryable:NO];
|
|
// Avoid the "Too many failures with this contact" error rate limiting.
|
|
[error setIsFatal:YES];
|
|
*errorHandle = error;
|
|
|
|
PreKeyBundle *_Nullable newKeyBundle = exception.userInfo[TSInvalidPreKeyBundleKey];
|
|
if (newKeyBundle == nil) {
|
|
OWSProdFail([OWSAnalyticsEvents messageSenderErrorMissingNewPreKeyBundle]);
|
|
return nil;
|
|
}
|
|
|
|
if (![newKeyBundle isKindOfClass:[PreKeyBundle class]]) {
|
|
OWSProdFail([OWSAnalyticsEvents messageSenderErrorUnexpectedKeyBundle]);
|
|
return nil;
|
|
}
|
|
|
|
NSData *newIdentityKeyWithVersion = newKeyBundle.identityKey;
|
|
|
|
if (![newIdentityKeyWithVersion isKindOfClass:[NSData class]]) {
|
|
OWSProdFail([OWSAnalyticsEvents messageSenderErrorInvalidIdentityKeyType]);
|
|
return nil;
|
|
}
|
|
|
|
// TODO migrate to storing the full 33 byte representation of the identity key.
|
|
if (newIdentityKeyWithVersion.length != kIdentityKeyLength) {
|
|
OWSProdFail([OWSAnalyticsEvents messageSenderErrorInvalidIdentityKeyLength]);
|
|
return nil;
|
|
}
|
|
|
|
NSData *newIdentityKey = [newIdentityKeyWithVersion removeKeyType];
|
|
[self.identityManager saveRemoteIdentity:newIdentityKey recipientId:recipient.recipientId];
|
|
|
|
return nil;
|
|
}
|
|
|
|
if ([exception.name isEqualToString:OWSMessageSenderRateLimitedException]) {
|
|
NSError *error = OWSErrorWithCodeDescription(OWSErrorCodeSignalServiceRateLimited,
|
|
NSLocalizedString(@"FAILED_SENDING_BECAUSE_RATE_LIMIT",
|
|
@"action sheet header when re-sending message which failed because of too many attempts"));
|
|
// We're already rate-limited. No need to exacerbate the problem.
|
|
[error setIsRetryable:NO];
|
|
// Avoid exacerbating the rate limiting.
|
|
[error setIsFatal:YES];
|
|
*errorHandle = error;
|
|
return nil;
|
|
}
|
|
|
|
if (messageSend.remainingAttempts == 0) {
|
|
OWSLogWarn(@"Terminal failure to build any device messages. Giving up with exception: %@", exception);
|
|
NSError *error = OWSErrorMakeFailedToSendOutgoingMessageError();
|
|
// Since we've already repeatedly failed to build messages, it's unlikely that repeating the whole process
|
|
// will succeed.
|
|
[error setIsRetryable:NO];
|
|
*errorHandle = error;
|
|
return nil;
|
|
}
|
|
|
|
OWSLogWarn(@"Could not build device messages: %@", exception);
|
|
NSError *error = OWSErrorMakeFailedToSendOutgoingMessageError();
|
|
[error setIsRetryable:YES];
|
|
*errorHandle = error;
|
|
return nil;
|
|
}
|
|
|
|
return deviceMessages;
|
|
}
|
|
|
|
- (void)sendMessageToRecipient:(OWSMessageSend *)messageSend
|
|
{
|
|
OWSAssertDebug(messageSend);
|
|
OWSAssertDebug(messageSend.thread || [messageSend.message isKindOfClass:[OWSOutgoingSyncMessage class]]);
|
|
|
|
TSOutgoingMessage *message = messageSend.message;
|
|
SignalRecipient *recipient = messageSend.recipient;
|
|
|
|
OWSLogInfo(@"attempting to send message: %@, timestamp: %llu, recipient: %@",
|
|
message.class,
|
|
message.timestamp,
|
|
recipient.uniqueId);
|
|
AssertIsOnSendingQueue();
|
|
|
|
if ([TSPreKeyManager isAppLockedDueToPreKeyUpdateFailures]) {
|
|
OWSProdError([OWSAnalyticsEvents messageSendErrorFailedDueToPrekeyUpdateFailures]);
|
|
|
|
// Retry prekey update every time user tries to send a message while app
|
|
// is disabled due to prekey update failures.
|
|
//
|
|
// Only try to update the signed prekey; updating it is sufficient to
|
|
// re-enable message sending.
|
|
[TSPreKeyManager
|
|
rotateSignedPreKeyWithSuccess:^{
|
|
OWSLogInfo(@"New prekeys registered with server.");
|
|
NSError *error = OWSErrorMakeMessageSendDisabledDueToPreKeyUpdateFailuresError();
|
|
[error setIsRetryable:YES];
|
|
return messageSend.failure(error);
|
|
}
|
|
failure:^(NSError *error) {
|
|
OWSLogWarn(@"Failed to update prekeys with the server: %@", error);
|
|
return messageSend.failure(error);
|
|
}];
|
|
}
|
|
|
|
if (messageSend.remainingAttempts <= 0) {
|
|
// We should always fail with a specific error.
|
|
OWSProdFail([OWSAnalyticsEvents messageSenderErrorGenericSendFailure]);
|
|
|
|
NSError *error = OWSErrorMakeFailedToSendOutgoingMessageError();
|
|
[error setIsRetryable:YES];
|
|
return messageSend.failure(error);
|
|
}
|
|
|
|
// Consume an attempt.
|
|
messageSend.remainingAttempts = messageSend.remainingAttempts - 1;
|
|
|
|
// We need to disable UD for sync messages before we build the device messages,
|
|
// since we don't want to build a device message for the local device in the
|
|
// non-UD auth case.
|
|
if ([message isKindOfClass:[OWSOutgoingSyncMessage class]]
|
|
&& ![message isKindOfClass:[OWSOutgoingSentMessageTranscript class]]) {
|
|
[messageSend disableUD];
|
|
}
|
|
|
|
NSError *deviceMessagesError;
|
|
NSArray<NSDictionary *> *_Nullable deviceMessages =
|
|
[self deviceMessagesForMessageSendSafe:messageSend error:&deviceMessagesError];
|
|
if (deviceMessagesError || !deviceMessages) {
|
|
OWSAssertDebug(deviceMessagesError);
|
|
return messageSend.failure(deviceMessagesError);
|
|
}
|
|
|
|
if (messageSend.isLocalNumber) {
|
|
OWSAssertDebug([message isKindOfClass:[OWSOutgoingSyncMessage class]]);
|
|
// Messages sent to the "local number" should be sync messages.
|
|
//
|
|
// We can skip sending sync messages if we know that we have no linked
|
|
// devices. However, we need to be sure to handle the case where the
|
|
// linked device list has just changed.
|
|
//
|
|
// The linked device list is reflected in two separate pieces of state:
|
|
//
|
|
// * OWSDevice's state is updated when you link or unlink a device.
|
|
// * SignalRecipient's state is updated by 409 "Mismatched devices"
|
|
// responses from the service.
|
|
//
|
|
// If _both_ of these pieces of state agree that there are no linked
|
|
// devices, then can safely skip sending sync message.
|
|
//
|
|
// NOTE: Sync messages sent via UD include the local device.
|
|
|
|
BOOL mayHaveLinkedDevices = [OWSDeviceManager.sharedManager mayHaveLinkedDevices:self.dbConnection];
|
|
|
|
BOOL hasDeviceMessages = NO;
|
|
for (NSDictionary<NSString *, id> *deviceMessage in deviceMessages) {
|
|
NSString *_Nullable destination = deviceMessage[@"destination"];
|
|
if (!destination) {
|
|
OWSFailDebug(@"Sync device message missing destination: %@", deviceMessage);
|
|
continue;
|
|
}
|
|
if (![destination isEqualToString:messageSend.localNumber]) {
|
|
OWSFailDebug(@"Sync device message has invalid destination: %@", deviceMessage);
|
|
continue;
|
|
}
|
|
NSNumber *_Nullable destinationDeviceId = deviceMessage[@"destinationDeviceId"];
|
|
if (!destinationDeviceId) {
|
|
OWSFailDebug(@"Sync device message missing destination device id: %@", deviceMessage);
|
|
continue;
|
|
}
|
|
if (destinationDeviceId.intValue != OWSDevicePrimaryDeviceId) {
|
|
hasDeviceMessages = YES;
|
|
break;
|
|
}
|
|
}
|
|
|
|
OWSLogInfo(@"mayHaveLinkedDevices: %d, hasDeviceMessages: %d", mayHaveLinkedDevices, hasDeviceMessages);
|
|
|
|
if (!mayHaveLinkedDevices && !hasDeviceMessages) {
|
|
OWSLogInfo(@"Ignoring sync message without secondary devices: %@", [message class]);
|
|
OWSAssertDebug([message isKindOfClass:[OWSOutgoingSyncMessage class]]);
|
|
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
// This emulates the completion logic of an actual successful send (see below).
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
[message updateWithSkippedRecipient:messageSend.localNumber transaction:transaction];
|
|
}];
|
|
messageSend.success();
|
|
});
|
|
|
|
return;
|
|
} else if (mayHaveLinkedDevices && !hasDeviceMessages) {
|
|
// We may have just linked a new secondary device which is not yet reflected in
|
|
// the SignalRecipient that corresponds to ourself. Proceed. Client should learn
|
|
// of new secondary devices via 409 "Mismatched devices" response.
|
|
OWSLogWarn(@"account has secondary devices, but sync message has no device messages");
|
|
} else if (!mayHaveLinkedDevices && hasDeviceMessages) {
|
|
OWSFailDebug(@"sync message has device messages for unknown secondary devices.");
|
|
}
|
|
} else {
|
|
OWSAssertDebug(deviceMessages.count > 0);
|
|
}
|
|
|
|
if (deviceMessages.count == 0) {
|
|
// This might happen:
|
|
//
|
|
// * The first (after upgrading?) time we send a sync message to our linked devices.
|
|
// * After unlinking all linked devices.
|
|
// * After trying and failing to link a device.
|
|
// * The first time we send a message to a user, if they don't have their
|
|
// default device. For example, if they have unregistered
|
|
// their primary but still have a linked device. Or later, when they re-register.
|
|
//
|
|
// When we're not sure if we have linked devices, we need to try
|
|
// to send self-sync messages even if they have no device messages
|
|
// so that we can learn from the service whether or not there are
|
|
// linked devices that we don't know about.
|
|
OWSLogWarn(@"Sending a message with no device messages.");
|
|
}
|
|
|
|
// NOTE: canFailoverUDAuth is NO because UD-auth and Non-UD-auth requests
|
|
// use different device lists.
|
|
OWSRequestMaker *requestMaker = [[OWSRequestMaker alloc] initWithLabel:@"Message Send"
|
|
requestFactoryBlock:^(SMKUDAccessKey *_Nullable udAccessKey) {
|
|
return [OWSRequestFactory submitMessageRequestWithRecipient:recipient.recipientId
|
|
messages:deviceMessages
|
|
timeStamp:message.timestamp
|
|
udAccessKey:udAccessKey];
|
|
}
|
|
udAuthFailureBlock:^{
|
|
[messageSend setHasUDAuthFailed];
|
|
}
|
|
websocketFailureBlock:^{
|
|
messageSend.hasWebsocketSendFailed = YES;
|
|
}
|
|
recipientId:recipient.recipientId
|
|
udAccessKey:messageSend.udAccessKey
|
|
canFailoverUDAuth:NO];
|
|
[[requestMaker makeRequestObjc]
|
|
.then(^(OWSRequestMakerResult *result) {
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
const BOOL wasSentByUD = result.wasSentByUD;
|
|
[self messageSendDidSucceed:messageSend deviceMessages:deviceMessages wasSentByUD:wasSentByUD];
|
|
});
|
|
})
|
|
.catch(^(NSError *error) {
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
NSUInteger statusCode = 0;
|
|
NSData *_Nullable responseData = nil;
|
|
if ([error.domain isEqualToString:@"SignalServiceKit.RequestMakerUDAuthError"]) {
|
|
// Try again.
|
|
OWSLogInfo(@"UD request auth failed; failing over to non-UD request.");
|
|
[error setIsRetryable:YES];
|
|
} else if ([error.domain isEqualToString:TSNetworkManagerErrorDomain]) {
|
|
statusCode = error.code;
|
|
|
|
NSError *_Nullable underlyingError = error.userInfo[NSUnderlyingErrorKey];
|
|
if (underlyingError) {
|
|
responseData
|
|
= underlyingError.userInfo[AFNetworkingOperationFailingURLResponseDataErrorKey];
|
|
} else {
|
|
OWSFailDebug(@"Missing underlying error: %@", error);
|
|
}
|
|
} else {
|
|
OWSFailDebug(@"Unexpected error: %@", error);
|
|
}
|
|
|
|
[self messageSendDidFail:messageSend
|
|
deviceMessages:deviceMessages
|
|
statusCode:statusCode
|
|
error:error
|
|
responseData:responseData];
|
|
});
|
|
}) retainUntilComplete];
|
|
}
|
|
|
|
- (void)messageSendDidSucceed:(OWSMessageSend *)messageSend
|
|
deviceMessages:(NSArray<NSDictionary *> *)deviceMessages
|
|
wasSentByUD:(BOOL)wasSentByUD {
|
|
OWSAssertDebug(messageSend);
|
|
OWSAssertDebug(deviceMessages);
|
|
|
|
SignalRecipient *recipient = messageSend.recipient;
|
|
|
|
OWSLogInfo(@"Message send succeeded (wasSentByUD: %d).", wasSentByUD);
|
|
|
|
if (messageSend.isLocalNumber && deviceMessages.count == 0) {
|
|
OWSLogInfo(@"Sent a message with no device messages; clearing 'mayHaveLinkedDevices'.");
|
|
// In order to avoid skipping necessary sync messages, the default value
|
|
// for mayHaveLinkedDevices is YES. Once we've successfully sent a
|
|
// sync message with no device messages (e.g. the service has confirmed
|
|
// that we have no linked devices), we can set mayHaveLinkedDevices to NO
|
|
// to avoid unnecessary message sends for sync messages until we learn
|
|
// of a linked device (e.g. through the device linking UI or by receiving
|
|
// a sync message, etc.).
|
|
[OWSDeviceManager.sharedManager clearMayHaveLinkedDevicesIfNotSet];
|
|
}
|
|
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
[messageSend.message updateWithSentRecipient:messageSend.recipient.uniqueId
|
|
wasSentByUD:wasSentByUD
|
|
transaction:transaction];
|
|
|
|
// If we've just delivered a message to a user, we know they
|
|
// have a valid Signal account.
|
|
[SignalRecipient markRecipientAsRegisteredAndGet:recipient.recipientId transaction:transaction];
|
|
}];
|
|
|
|
messageSend.success();
|
|
});
|
|
}
|
|
|
|
- (void)messageSendDidFail:(OWSMessageSend *)messageSend
|
|
deviceMessages:(NSArray<NSDictionary *> *)deviceMessages
|
|
statusCode:(NSInteger)statusCode
|
|
error:(NSError *)responseError
|
|
responseData:(nullable NSData *)responseData
|
|
{
|
|
OWSAssertDebug(messageSend);
|
|
OWSAssertDebug(messageSend.thread || [messageSend.message isKindOfClass:[OWSOutgoingSyncMessage class]]);
|
|
OWSAssertDebug(deviceMessages);
|
|
OWSAssertDebug(responseError);
|
|
|
|
TSOutgoingMessage *message = messageSend.message;
|
|
SignalRecipient *recipient = messageSend.recipient;
|
|
|
|
OWSLogInfo(@"sending to recipient: %@, failed with error.", recipient.uniqueId);
|
|
|
|
void (^retrySend)(void) = ^void() {
|
|
if (messageSend.remainingAttempts <= 0) {
|
|
// Since we've already repeatedly failed to send to the messaging API,
|
|
// it's unlikely that repeating the whole process will succeed.
|
|
[responseError setIsRetryable:NO];
|
|
return messageSend.failure(responseError);
|
|
}
|
|
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
OWSLogDebug(@"Retrying: %@", message.debugDescription);
|
|
[self sendMessageToRecipient:messageSend];
|
|
});
|
|
};
|
|
|
|
void (^handle404)(void) = ^{
|
|
OWSLogWarn(@"Unregistered recipient: %@", recipient.uniqueId);
|
|
|
|
TSThread *_Nullable thread = messageSend.thread;
|
|
OWSAssertDebug(thread);
|
|
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
[self unregisteredRecipient:recipient message:message thread:thread];
|
|
|
|
NSError *error = OWSErrorMakeNoSuchSignalRecipientError();
|
|
// No need to retry if the recipient is not registered.
|
|
[error setIsRetryable:NO];
|
|
// If one member of a group deletes their account,
|
|
// the group should ignore errors when trying to send
|
|
// messages to this ex-member.
|
|
[error setShouldBeIgnoredForGroups:YES];
|
|
messageSend.failure(error);
|
|
});
|
|
};
|
|
|
|
switch (statusCode) {
|
|
case 401: {
|
|
OWSLogWarn(@"Unable to send due to invalid credentials. Did the user's client get de-authed by "
|
|
@"registering elsewhere?");
|
|
NSError *error = OWSErrorWithCodeDescription(OWSErrorCodeSignalServiceFailure,
|
|
NSLocalizedString(
|
|
@"ERROR_DESCRIPTION_SENDING_UNAUTHORIZED", @"Error message when attempting to send message"));
|
|
// No need to retry if we've been de-authed.
|
|
[error setIsRetryable:NO];
|
|
return messageSend.failure(error);
|
|
}
|
|
case 404: {
|
|
handle404();
|
|
return;
|
|
}
|
|
case 409: {
|
|
// Mismatched devices
|
|
OWSLogWarn(@"Mismatched devices for recipient: %@ (%zd)", recipient.uniqueId, deviceMessages.count);
|
|
|
|
NSError *_Nullable error = nil;
|
|
NSDictionary *_Nullable responseJson = nil;
|
|
if (responseData) {
|
|
responseJson = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:&error];
|
|
}
|
|
if (error || !responseJson) {
|
|
OWSProdError([OWSAnalyticsEvents messageSenderErrorCouldNotParseMismatchedDevicesJson]);
|
|
[error setIsRetryable:YES];
|
|
return messageSend.failure(error);
|
|
}
|
|
|
|
NSNumber *_Nullable errorCode = responseJson[@"code"];
|
|
if ([@(404) isEqual:errorCode]) {
|
|
// Some 404s are returned as 409.
|
|
handle404();
|
|
return;
|
|
}
|
|
|
|
[self handleMismatchedDevicesWithResponseJson:responseJson recipient:recipient completion:retrySend];
|
|
|
|
if (messageSend.isLocalNumber) {
|
|
// Don't use websocket; it may have obsolete cached state.
|
|
[messageSend setHasWebsocketSendFailed:YES];
|
|
}
|
|
|
|
break;
|
|
}
|
|
case 410: {
|
|
// Stale devices
|
|
OWSLogWarn(@"Stale devices for recipient: %@", recipient.uniqueId);
|
|
|
|
NSError *_Nullable error = nil;
|
|
NSDictionary *_Nullable responseJson = nil;
|
|
if (responseData) {
|
|
responseJson = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:&error];
|
|
}
|
|
if (error || !responseJson) {
|
|
OWSLogWarn(@"Stale devices but server didn't specify devices in response.");
|
|
NSError *error = OWSErrorMakeUnableToProcessServerResponseError();
|
|
[error setIsRetryable:YES];
|
|
return messageSend.failure(error);
|
|
}
|
|
|
|
[self handleStaleDevicesWithResponseJson:responseJson recipientId:recipient.uniqueId completion:retrySend];
|
|
|
|
if (messageSend.isLocalNumber) {
|
|
// Don't use websocket; it may have obsolete cached state.
|
|
[messageSend setHasWebsocketSendFailed:YES];
|
|
}
|
|
|
|
break;
|
|
}
|
|
default:
|
|
retrySend();
|
|
break;
|
|
}
|
|
}
|
|
|
|
- (void)handleMismatchedDevicesWithResponseJson:(NSDictionary *)responseJson
|
|
recipient:(SignalRecipient *)recipient
|
|
completion:(void (^)(void))completionHandler
|
|
{
|
|
OWSAssertDebug(responseJson);
|
|
OWSAssertDebug(recipient);
|
|
OWSAssertDebug(completionHandler);
|
|
|
|
NSArray *extraDevices = responseJson[@"extraDevices"];
|
|
NSArray *missingDevices = responseJson[@"missingDevices"];
|
|
|
|
if (missingDevices.count > 0) {
|
|
NSString *localNumber = [TSAccountManager localNumber];
|
|
if ([localNumber isEqualToString:recipient.uniqueId]) {
|
|
[OWSDeviceManager.sharedManager setMayHaveLinkedDevices];
|
|
}
|
|
}
|
|
|
|
[self.dbConnection
|
|
readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
if (extraDevices.count < 1 && missingDevices.count < 1) {
|
|
OWSProdFail([OWSAnalyticsEvents messageSenderErrorNoMissingOrExtraDevices]);
|
|
}
|
|
|
|
[recipient updateRegisteredRecipientWithDevicesToAdd:missingDevices
|
|
devicesToRemove:extraDevices
|
|
transaction:transaction];
|
|
|
|
if (extraDevices && extraDevices.count > 0) {
|
|
OWSLogInfo(@"Deleting sessions for extra devices: %@", extraDevices);
|
|
for (NSNumber *extraDeviceId in extraDevices) {
|
|
[self.primaryStorage deleteSessionForContact:recipient.uniqueId
|
|
deviceId:extraDeviceId.intValue
|
|
protocolContext:transaction];
|
|
}
|
|
}
|
|
|
|
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
|
|
completionHandler();
|
|
});
|
|
}];
|
|
}
|
|
|
|
- (void)handleMessageSentLocally:(TSOutgoingMessage *)message
|
|
senderCertificate:(nullable SMKSenderCertificate *)senderCertificate
|
|
selfUDAccessKey:(nullable SMKUDAccessKey *)selfUDAccessKey
|
|
success:(void (^)(void))success
|
|
failure:(RetryableFailureHandler)failure
|
|
{
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
[[OWSDisappearingMessagesJob sharedJob] startAnyExpirationForMessage:message
|
|
expirationStartedAt:[NSDate ows_millisecondTimeStamp]
|
|
transaction:transaction];
|
|
}];
|
|
|
|
if (!message.shouldSyncTranscript) {
|
|
return success();
|
|
}
|
|
|
|
[self
|
|
sendSyncTranscriptForMessage:message
|
|
senderCertificate:senderCertificate
|
|
selfUDAccessKey:selfUDAccessKey
|
|
success:^{
|
|
// TODO: We might send to a recipient, then to another recipient on retry.
|
|
// To ensure desktop receives all "delivery status" info, we might
|
|
// want to send a transcript after every send that reaches _any_
|
|
// new recipients.
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
[message updateWithHasSyncedTranscript:YES transaction:transaction];
|
|
}];
|
|
|
|
success();
|
|
}
|
|
failure:failure];
|
|
}
|
|
|
|
- (void)sendSyncTranscriptForMessage:(TSOutgoingMessage *)message
|
|
senderCertificate:(nullable SMKSenderCertificate *)senderCertificate
|
|
selfUDAccessKey:(nullable SMKUDAccessKey *)selfUDAccessKey
|
|
success:(void (^)(void))success
|
|
failure:(RetryableFailureHandler)failure
|
|
{
|
|
OWSOutgoingSentMessageTranscript *sentMessageTranscript =
|
|
[[OWSOutgoingSentMessageTranscript alloc] initWithOutgoingMessage:message];
|
|
|
|
NSString *recipientId = self.tsAccountManager.localNumber;
|
|
__block SignalRecipient *recipient;
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
recipient = [SignalRecipient markRecipientAsRegisteredAndGet:recipientId transaction:transaction];
|
|
}];
|
|
|
|
OWSMessageSend *messageSend = [[OWSMessageSend alloc] initWithMessage:sentMessageTranscript
|
|
thread:message.thread
|
|
recipient:recipient
|
|
senderCertificate:senderCertificate
|
|
udAccessKey:selfUDAccessKey
|
|
localNumber:self.tsAccountManager.localNumber
|
|
success:^{
|
|
OWSLogInfo(@"Successfully sent sync transcript.");
|
|
|
|
success();
|
|
}
|
|
failure:^(NSError *error) {
|
|
OWSLogInfo(@"Failed to send sync transcript: %@ (isRetryable: %d)", error, [error isRetryable]);
|
|
|
|
failure(error);
|
|
}];
|
|
[self sendMessageToRecipient:messageSend];
|
|
}
|
|
|
|
// NOTE: This method uses exceptions for control flow.
|
|
- (NSArray<NSDictionary *> *)deviceMessagesForMessageSendUnsafe:(OWSMessageSend *)messageSend
|
|
{
|
|
OWSAssertDebug(messageSend.message);
|
|
OWSAssertDebug(messageSend.recipient);
|
|
|
|
SignalRecipient *recipient = messageSend.recipient;
|
|
|
|
NSMutableArray *messagesArray = [NSMutableArray arrayWithCapacity:recipient.devices.count];
|
|
|
|
NSData *_Nullable plainText = [messageSend.message buildPlainTextData:messageSend.recipient];
|
|
if (!plainText) {
|
|
OWSRaiseException(InvalidMessageException, @"Failed to build message proto");
|
|
}
|
|
OWSLogDebug(
|
|
@"built message: %@ plainTextData.length: %lu", [messageSend.message class], (unsigned long)plainText.length);
|
|
|
|
OWSLogVerbose(@"building device messages for: %@ %@ (isLocalNumber: %d, isUDSend: %d)",
|
|
recipient.recipientId,
|
|
recipient.devices,
|
|
messageSend.isLocalNumber,
|
|
messageSend.isUDSend);
|
|
|
|
NSMutableArray<NSNumber *> *deviceIds = [recipient.devices mutableCopy];
|
|
OWSAssertDebug(deviceIds);
|
|
|
|
if (messageSend.isUDSend && messageSend.isLocalNumber) {
|
|
OWSLogVerbose(@"Adding device message for UD send to local device.");
|
|
OWSAssertDebug(![deviceIds containsObject:@(OWSDevicePrimaryDeviceId)]);
|
|
|
|
[deviceIds addObject:@(OWSDevicePrimaryDeviceId)];
|
|
}
|
|
|
|
for (NSNumber *deviceId in deviceIds) {
|
|
@try {
|
|
// This may involve blocking network requests, so we do it _before_
|
|
// we open a transaction.
|
|
[self ensureRecipientHasSessionForMessageSend:messageSend deviceId:deviceId];
|
|
|
|
__block NSDictionary *messageDict;
|
|
__block NSException *encryptionException;
|
|
[self.dbConnection
|
|
readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
@try {
|
|
messageDict = [self try_encryptedMessageForMessageSend:messageSend
|
|
deviceId:deviceId
|
|
plainText:plainText
|
|
transaction:transaction];
|
|
} @catch (NSException *exception) {
|
|
encryptionException = exception;
|
|
}
|
|
}];
|
|
|
|
if (encryptionException) {
|
|
OWSLogInfo(@"Exception during encryption: %@", encryptionException);
|
|
@throw encryptionException;
|
|
}
|
|
|
|
if (messageDict) {
|
|
[messagesArray addObject:messageDict];
|
|
} else {
|
|
OWSRaiseException(InvalidMessageException, @"Failed to encrypt message");
|
|
}
|
|
} @catch (NSException *exception) {
|
|
if ([exception.name isEqualToString:OWSMessageSenderInvalidDeviceException]) {
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
[recipient updateRegisteredRecipientWithDevicesToAdd:nil
|
|
devicesToRemove:@[ deviceId ]
|
|
transaction:transaction];
|
|
}];
|
|
} else {
|
|
@throw exception;
|
|
}
|
|
}
|
|
}
|
|
|
|
return [messagesArray copy];
|
|
}
|
|
|
|
// NOTE: This method uses exceptions for control flow.
|
|
- (void)ensureRecipientHasSessionForMessageSend:(OWSMessageSend *)messageSend
|
|
deviceId:(NSNumber *)deviceId
|
|
{
|
|
OWSAssertDebug(messageSend);
|
|
OWSAssertDebug(deviceId);
|
|
|
|
OWSPrimaryStorage *storage = self.primaryStorage;
|
|
SignalRecipient *recipient = messageSend.recipient;
|
|
NSString *recipientId = recipient.recipientId;
|
|
OWSAssertDebug(recipientId.length > 0);
|
|
|
|
__block BOOL hasSession;
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
hasSession = [storage containsSession:recipientId deviceId:[deviceId intValue] protocolContext:transaction];
|
|
}];
|
|
if (hasSession) {
|
|
return;
|
|
}
|
|
|
|
__block dispatch_semaphore_t sema = dispatch_semaphore_create(0);
|
|
__block PreKeyBundle *_Nullable bundle;
|
|
__block NSException *_Nullable exception;
|
|
[self makePrekeyRequestForMessageSend:messageSend
|
|
deviceId:deviceId
|
|
success:^(PreKeyBundle *_Nullable responseBundle) {
|
|
bundle = responseBundle;
|
|
dispatch_semaphore_signal(sema);
|
|
}
|
|
failure:^(NSUInteger statusCode) {
|
|
if (statusCode == 404) {
|
|
// Can't throw exception from within callback as it's probabably a different thread.
|
|
exception = [NSException exceptionWithName:OWSMessageSenderInvalidDeviceException
|
|
reason:@"Device not registered"
|
|
userInfo:nil];
|
|
} else if (statusCode == 413) {
|
|
// Can't throw exception from within callback as it's probabably a different thread.
|
|
exception = [NSException exceptionWithName:OWSMessageSenderRateLimitedException
|
|
reason:@"Too many prekey requests"
|
|
userInfo:nil];
|
|
}
|
|
dispatch_semaphore_signal(sema);
|
|
}];
|
|
dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
|
|
if (exception) {
|
|
@throw exception;
|
|
}
|
|
|
|
if (!bundle) {
|
|
NSString *missingPrekeyBundleException = @"missingPrekeyBundleException";
|
|
OWSRaiseException(
|
|
missingPrekeyBundleException, @"Can't get a prekey bundle from the server with required information");
|
|
} else {
|
|
SessionBuilder *builder = [[SessionBuilder alloc] initWithSessionStore:storage
|
|
preKeyStore:storage
|
|
signedPreKeyStore:storage
|
|
identityKeyStore:self.identityManager
|
|
recipientId:recipientId
|
|
deviceId:[deviceId intValue]];
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
@try {
|
|
[builder try_processPrekeyBundle:bundle protocolContext:transaction];
|
|
} @catch (NSException *caughtException) {
|
|
exception = caughtException;
|
|
}
|
|
}];
|
|
if (exception) {
|
|
if ([exception.name isEqualToString:UntrustedIdentityKeyException]) {
|
|
OWSRaiseExceptionWithUserInfo(UntrustedIdentityKeyException,
|
|
(@{ TSInvalidPreKeyBundleKey : bundle, TSInvalidRecipientKey : recipientId }),
|
|
@"");
|
|
}
|
|
@throw exception;
|
|
}
|
|
}
|
|
}
|
|
|
|
- (void)makePrekeyRequestForMessageSend:(OWSMessageSend *)messageSend
|
|
deviceId:(NSNumber *)deviceId
|
|
success:(void (^)(PreKeyBundle *_Nullable))success
|
|
failure:(void (^)(NSUInteger))failure {
|
|
OWSAssertDebug(messageSend);
|
|
OWSAssertDebug(deviceId);
|
|
|
|
SignalRecipient *recipient = messageSend.recipient;
|
|
NSString *recipientId = recipient.recipientId;
|
|
OWSAssertDebug(recipientId.length > 0);
|
|
|
|
OWSRequestMaker *requestMaker = [[OWSRequestMaker alloc] initWithLabel:@"Prekey Fetch"
|
|
requestFactoryBlock:^(SMKUDAccessKey *_Nullable udAccessKey) {
|
|
return [OWSRequestFactory recipientPrekeyRequestWithRecipient:recipientId
|
|
deviceId:[deviceId stringValue]
|
|
udAccessKey:udAccessKey];
|
|
}
|
|
udAuthFailureBlock:^{
|
|
[messageSend setHasUDAuthFailed];
|
|
}
|
|
websocketFailureBlock:^{
|
|
messageSend.hasWebsocketSendFailed = YES;
|
|
}
|
|
recipientId:recipientId
|
|
udAccessKey:messageSend.udAccessKey
|
|
canFailoverUDAuth:YES];
|
|
[[requestMaker makeRequestObjc]
|
|
.then(^(OWSRequestMakerResult *result) {
|
|
// We _do not_ want to dispatch to the sendingQueue here; we're
|
|
// using a semaphore on the sendingQueue to block on this request.
|
|
const id responseObject = result.responseObject;
|
|
PreKeyBundle *_Nullable bundle =
|
|
[PreKeyBundle preKeyBundleFromDictionary:responseObject forDeviceNumber:deviceId];
|
|
success(bundle);
|
|
})
|
|
.catch(^(NSError *error) {
|
|
// We _do not_ want to dispatch to the sendingQueue here; we're
|
|
// using a semaphore on the sendingQueue to block on this request.
|
|
NSUInteger statusCode = 0;
|
|
if ([error.domain isEqualToString:TSNetworkManagerErrorDomain]) {
|
|
statusCode = error.code;
|
|
} else {
|
|
OWSFailDebug(@"Unexpected error: %@", error);
|
|
}
|
|
|
|
failure(statusCode);
|
|
}) retainUntilComplete];
|
|
}
|
|
|
|
// NOTE: This method uses exceptions for control flow.
|
|
- (NSDictionary *)try_encryptedMessageForMessageSend:(OWSMessageSend *)messageSend
|
|
deviceId:(NSNumber *)deviceId
|
|
plainText:(NSData *)plainText
|
|
transaction:(YapDatabaseReadWriteTransaction *)transaction
|
|
{
|
|
OWSAssertDebug(messageSend);
|
|
OWSAssertDebug(deviceId);
|
|
OWSAssertDebug(plainText);
|
|
OWSAssertDebug(transaction);
|
|
|
|
OWSPrimaryStorage *storage = self.primaryStorage;
|
|
TSOutgoingMessage *message = messageSend.message;
|
|
SignalRecipient *recipient = messageSend.recipient;
|
|
NSString *recipientId = recipient.recipientId;
|
|
OWSAssertDebug(recipientId.length > 0);
|
|
|
|
// This may throw an exception.
|
|
if (![storage containsSession:recipientId deviceId:[deviceId intValue] protocolContext:transaction]) {
|
|
NSString *missingSessionException = @"missingSessionException";
|
|
OWSRaiseException(missingSessionException,
|
|
@"Unexpectedly missing session for recipient: %@, device: %@",
|
|
recipientId,
|
|
deviceId);
|
|
}
|
|
|
|
SessionCipher *cipher = [[SessionCipher alloc] initWithSessionStore:storage
|
|
preKeyStore:storage
|
|
signedPreKeyStore:storage
|
|
identityKeyStore:self.identityManager
|
|
recipientId:recipientId
|
|
deviceId:[deviceId intValue]];
|
|
|
|
NSData *_Nullable serializedMessage;
|
|
TSWhisperMessageType messageType;
|
|
if (messageSend.isUDSend) {
|
|
NSError *error;
|
|
SMKSecretSessionCipher *_Nullable secretCipher =
|
|
[[SMKSecretSessionCipher alloc] initWithSessionStore:self.primaryStorage
|
|
preKeyStore:self.primaryStorage
|
|
signedPreKeyStore:self.primaryStorage
|
|
identityStore:self.identityManager
|
|
error:&error];
|
|
if (error || !secretCipher) {
|
|
OWSRaiseException(@"SecretSessionCipherFailure", @"Can't create secret session cipher.");
|
|
}
|
|
|
|
serializedMessage = [secretCipher trywrapped_encryptMessageWithRecipientId:recipientId
|
|
deviceId:deviceId.intValue
|
|
paddedPlaintext:[plainText paddedMessageBody]
|
|
senderCertificate:messageSend.senderCertificate
|
|
protocolContext:transaction
|
|
error:&error];
|
|
SCKRaiseIfExceptionWrapperError(error);
|
|
messageType = TSUnidentifiedSenderMessageType;
|
|
} else {
|
|
// This may throw an exception.
|
|
id<CipherMessage> encryptedMessage =
|
|
[cipher try_encryptMessage:[plainText paddedMessageBody] protocolContext:transaction];
|
|
serializedMessage = encryptedMessage.serialized;
|
|
messageType = [self messageTypeForCipherMessage:encryptedMessage];
|
|
}
|
|
|
|
BOOL isSilent = message.isSilent;
|
|
OWSMessageServiceParams *messageParams =
|
|
[[OWSMessageServiceParams alloc] initWithType:messageType
|
|
recipientId:recipientId
|
|
device:[deviceId intValue]
|
|
content:serializedMessage
|
|
isSilent:isSilent
|
|
registrationId:[cipher try_remoteRegistrationId:transaction]];
|
|
|
|
NSError *error;
|
|
NSDictionary *jsonDict = [MTLJSONAdapter JSONDictionaryFromModel:messageParams error:&error];
|
|
|
|
if (error) {
|
|
OWSProdError([OWSAnalyticsEvents messageSendErrorCouldNotSerializeMessageJson]);
|
|
return nil;
|
|
}
|
|
|
|
return jsonDict;
|
|
}
|
|
|
|
- (TSWhisperMessageType)messageTypeForCipherMessage:(id<CipherMessage>)cipherMessage
|
|
{
|
|
switch (cipherMessage.cipherMessageType) {
|
|
case CipherMessageType_Whisper:
|
|
return TSEncryptedWhisperMessageType;
|
|
case CipherMessageType_Prekey:
|
|
return TSPreKeyWhisperMessageType;
|
|
default:
|
|
return TSUnknownMessageType;
|
|
}
|
|
}
|
|
|
|
- (void)saveInfoMessageForGroupMessage:(TSOutgoingMessage *)message inThread:(TSThread *)thread
|
|
{
|
|
OWSAssertDebug(message);
|
|
OWSAssertDebug(thread);
|
|
|
|
if (message.groupMetaMessage == TSGroupMetaMessageDeliver) {
|
|
// TODO: Why is this necessary?
|
|
[message save];
|
|
} else if (message.groupMetaMessage == TSGroupMetaMessageQuit) {
|
|
[[[TSInfoMessage alloc] initWithTimestamp:message.timestamp
|
|
inThread:thread
|
|
messageType:TSInfoMessageTypeGroupQuit
|
|
customMessage:message.customMessage] save];
|
|
} else {
|
|
[[[TSInfoMessage alloc] initWithTimestamp:message.timestamp
|
|
inThread:thread
|
|
messageType:TSInfoMessageTypeGroupUpdate
|
|
customMessage:message.customMessage] save];
|
|
}
|
|
}
|
|
|
|
// Called when the server indicates that the devices no longer exist - e.g. when the remote recipient has reinstalled.
|
|
- (void)handleStaleDevicesWithResponseJson:(NSDictionary *)responseJson
|
|
recipientId:(NSString *)identifier
|
|
completion:(void (^)(void))completionHandler
|
|
{
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
NSArray *devices = responseJson[@"staleDevices"];
|
|
|
|
if (!([devices count] > 0)) {
|
|
return;
|
|
}
|
|
|
|
[self.dbConnection asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
for (NSUInteger i = 0; i < [devices count]; i++) {
|
|
int deviceNumber = [devices[i] intValue];
|
|
[[OWSPrimaryStorage sharedManager] deleteSessionForContact:identifier
|
|
deviceId:deviceNumber
|
|
protocolContext:transaction];
|
|
}
|
|
}];
|
|
completionHandler();
|
|
});
|
|
}
|
|
|
|
@end
|
|
|
|
NS_ASSUME_NONNULL_END
|