1335 lines
54 KiB
Objective-C
1335 lines
54 KiB
Objective-C
//
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// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
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//
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#import "OWSMessageSender.h"
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#import "ContactsUpdater.h"
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#import "NSData+messagePadding.h"
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#import "OWSBlockingManager.h"
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#import "OWSDevice.h"
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#import "OWSDisappearingMessagesJob.h"
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#import "OWSError.h"
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#import "OWSLegacyMessageServiceParams.h"
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#import "OWSMessageServiceParams.h"
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#import "OWSOutgoingSentMessageTranscript.h"
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#import "OWSOutgoingSyncMessage.h"
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#import "OWSUploadingService.h"
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#import "PreKeyBundle+jsonDict.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 "TSStorageManager+IdentityKeyStore.h"
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#import "TSStorageManager+PreKeyStore.h"
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#import "TSStorageManager+SignedPreKeyStore.h"
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#import "TSStorageManager+keyingMaterial.h"
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#import "TSStorageManager+sessionStore.h"
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#import "TSStorageManager.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 <TwistedOakCollapsingFutures/CollapsingFutures.h>
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#import <objc/runtime.h>
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NS_ASSUME_NONNULL_BEGIN
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void AssertIsOnSendingQueue()
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{
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#ifdef DEBUG
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if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(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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static void *kNSError_MessageSender_IsRetryable = &kNSError_MessageSender_IsRetryable;
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static void *kNSError_MessageSender_ShouldBeIgnoredForGroups = &kNSError_MessageSender_ShouldBeIgnoredForGroups;
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static void *kNSError_MessageSender_IsFatal = &kNSError_MessageSender_IsFatal;
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// isRetryable and isFatal are opposites but not redundant.
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//
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// If a group message send fails, the send will be retried if any of the errors were retryable UNLESS
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// any of the errors were fatal. Fatal errors trump retryable errors.
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@implementation NSError (OWSMessageSender)
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- (BOOL)isRetryable
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{
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NSNumber *value = objc_getAssociatedObject(self, kNSError_MessageSender_IsRetryable);
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// This value should always be set for all errors by the time OWSSendMessageOperation
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// queries it's value. If not, default to retrying in production.
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OWSAssert(value);
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return value ? [value boolValue] : YES;
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}
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- (void)setIsRetryable:(BOOL)value
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{
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objc_setAssociatedObject(self, kNSError_MessageSender_IsRetryable, @(value), OBJC_ASSOCIATION_COPY);
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}
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- (BOOL)shouldBeIgnoredForGroups
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{
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NSNumber *value = objc_getAssociatedObject(self, kNSError_MessageSender_ShouldBeIgnoredForGroups);
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// This value will NOT always be set for all errors by the time we query it's value.
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// Default to NOT ignoring.
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return value ? [value boolValue] : NO;
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}
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- (void)setShouldBeIgnoredForGroups:(BOOL)value
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{
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objc_setAssociatedObject(self, kNSError_MessageSender_ShouldBeIgnoredForGroups, @(value), OBJC_ASSOCIATION_COPY);
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}
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- (BOOL)isFatal
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{
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NSNumber *value = objc_getAssociatedObject(self, kNSError_MessageSender_IsFatal);
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// This value will NOT always be set for all errors by the time we query it's value.
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// Default to NOT fatal.
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return value ? [value boolValue] : NO;
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}
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- (void)setIsFatal:(BOOL)value
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{
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objc_setAssociatedObject(self, kNSError_MessageSender_IsFatal, @(value), OBJC_ASSOCIATION_COPY);
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}
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@end
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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 : NSOperation
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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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success:(void (^)())successHandler
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failure:(void (^)(NSError *_Nonnull error))failureHandler NS_DESIGNATED_INITIALIZER;
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#pragma mark - background task mgmt
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- (void)startBackgroundTask;
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- (void)endBackgroundTask;
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@end
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#pragma mark -
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typedef NS_ENUM(NSInteger, OWSSendMessageOperationState) {
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OWSSendMessageOperationStateNew,
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OWSSendMessageOperationStateExecuting,
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OWSSendMessageOperationStateFinished
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};
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@interface OWSMessageSender (OWSSendMessageOperation)
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- (void)attemptToSendMessage:(TSOutgoingMessage *)message
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success:(void (^)())successHandler
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failure:(RetryableFailureHandler)failureHandler;
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@end
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#pragma mark -
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NSString *const OWSSendMessageOperationKeyIsExecuting = @"isExecuting";
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NSString *const OWSSendMessageOperationKeyIsFinished = @"isFinished";
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NSUInteger const OWSSendMessageOperationMaxRetries = 4;
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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) void (^successHandler)();
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@property (nonatomic, readonly) void (^failureHandler)(NSError *_Nonnull error);
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@property (nonatomic) OWSSendMessageOperationState operationState;
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@property (nonatomic) UIBackgroundTaskIdentifier backgroundTaskIdentifier;
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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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success:(void (^)())aSuccessHandler
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failure:(void (^)(NSError *_Nonnull error))aFailureHandler
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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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_operationState = OWSSendMessageOperationStateNew;
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_backgroundTaskIdentifier = UIBackgroundTaskInvalid;
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_message = message;
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_messageSender = messageSender;
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__weak typeof(self) weakSelf = self;
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_successHandler = ^{
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typeof(self) strongSelf = weakSelf;
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if (!strongSelf) {
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OWSCAssert(NO);
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return;
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}
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[message updateWithMessageState:TSOutgoingMessageStateSentToService];
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DDLogDebug(@"%@ succeeded.", strongSelf.tag);
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aSuccessHandler();
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[strongSelf markAsComplete];
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};
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_failureHandler = ^(NSError *_Nonnull error) {
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typeof(self) strongSelf = weakSelf;
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if (!strongSelf) {
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OWSCAssert(NO);
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return;
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}
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[strongSelf.message updateWithSendingError:error];
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DDLogDebug(@"%@ failed with error: %@", strongSelf.tag, error);
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aFailureHandler(error);
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[strongSelf markAsComplete];
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};
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return self;
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}
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#pragma mark - background task mgmt
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// We want to make sure to finish sending any in-flight messages when the app is backgrounded.
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// We have to call `startBackgroundTask` *before* the task is enqueued, since we can't guarantee when the operation will
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// be dequeued.
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- (void)startBackgroundTask
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{
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AssertIsOnMainThread();
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OWSAssert(self.backgroundTaskIdentifier == UIBackgroundTaskInvalid);
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self.backgroundTaskIdentifier = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
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DDLogWarn(@"%@ Timed out while in background trying to send message: %@", self.tag, self.message);
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[self endBackgroundTask];
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}];
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}
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- (void)endBackgroundTask
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{
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[[UIApplication sharedApplication] endBackgroundTask:self.backgroundTaskIdentifier];
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}
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- (void)setBackgroundTaskIdentifier:(UIBackgroundTaskIdentifier)backgroundTaskIdentifier
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{
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AssertIsOnMainThread();
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// Should only be sent once per operation
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OWSAssert(_backgroundTaskIdentifier == UIBackgroundTaskInvalid);
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OWSAssert(backgroundTaskIdentifier != UIBackgroundTaskInvalid);
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_backgroundTaskIdentifier = backgroundTaskIdentifier;
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}
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#pragma mark - NSOperation overrides
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- (BOOL)isExecuting
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{
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return self.operationState == OWSSendMessageOperationStateExecuting;
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}
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- (BOOL)isFinished
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{
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return self.operationState == OWSSendMessageOperationStateFinished;
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}
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- (void)start
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{
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// Should call `startBackgroundTask` before enqueuing the operation
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// to ensure we don't get suspended before the operation completes.
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OWSAssert(self.backgroundTaskIdentifier != UIBackgroundTaskInvalid);
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[self willChangeValueForKey:OWSSendMessageOperationKeyIsExecuting];
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self.operationState = OWSSendMessageOperationStateExecuting;
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[self didChangeValueForKey:OWSSendMessageOperationKeyIsExecuting];
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[self main];
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}
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- (void)main
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{
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[self tryWithRemainingRetries:OWSSendMessageOperationMaxRetries];
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}
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#pragma mark - methods
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- (void)tryWithRemainingRetries:(NSUInteger)remainingRetries
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{
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DDLogDebug(@"%@ remainingRetries: %lu", self.tag, (unsigned long)remainingRetries);
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RetryableFailureHandler retryableFailureHandler = ^(NSError *_Nonnull error) {
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DDLogInfo(@"%@ Sending failed.", self.tag);
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if (![error isRetryable] || [error isFatal]) {
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DDLogInfo(@"%@ Skipping retry due to terminal error: %@", self.tag, error);
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self.failureHandler(error);
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return;
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}
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if (remainingRetries > 0) {
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[self tryWithRemainingRetries:remainingRetries - 1];
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} else {
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DDLogWarn(@"%@ Too many failures. Giving up sending.", self.tag);
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self.failureHandler(error);
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}
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};
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[self.messageSender attemptToSendMessage:self.message success:self.successHandler failure:retryableFailureHandler];
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}
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- (void)markAsComplete
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{
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[self willChangeValueForKey:OWSSendMessageOperationKeyIsExecuting];
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[self willChangeValueForKey:OWSSendMessageOperationKeyIsFinished];
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self.operationState = OWSSendMessageOperationStateFinished;
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[self didChangeValueForKey:OWSSendMessageOperationKeyIsExecuting];
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[self didChangeValueForKey:OWSSendMessageOperationKeyIsFinished];
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[self endBackgroundTask];
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}
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#pragma mark - Logging
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+ (NSString *)tag
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{
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return [NSString stringWithFormat:@"[%@]", self.class];
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}
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- (NSString *)tag
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{
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return self.class.tag;
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}
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@end
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int const OWSMessageSenderRetryAttempts = 3;
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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) TSNetworkManager *networkManager;
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@property (nonatomic, readonly) TSStorageManager *storageManager;
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@property (nonatomic, readonly) OWSBlockingManager *blockingManager;
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@property (nonatomic, readonly) OWSUploadingService *uploadingService;
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@property (nonatomic, readonly) YapDatabaseConnection *dbConnection;
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@property (nonatomic, readonly) id<ContactsManagerProtocol> contactsManager;
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@property (nonatomic, readonly) ContactsUpdater *contactsUpdater;
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@property (nonatomic, readonly) OWSDisappearingMessagesJob *disappearingMessagesJob;
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@property (atomic, readonly) NSMutableDictionary<NSString *, NSOperationQueue *> *sendingQueueMap;
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@end
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@implementation OWSMessageSender
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- (instancetype)initWithNetworkManager:(TSNetworkManager *)networkManager
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storageManager:(TSStorageManager *)storageManager
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contactsManager:(id<ContactsManagerProtocol>)contactsManager
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contactsUpdater:(ContactsUpdater *)contactsUpdater
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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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_networkManager = networkManager;
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_storageManager = storageManager;
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_contactsManager = contactsManager;
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_contactsUpdater = contactsUpdater;
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_sendingQueueMap = [NSMutableDictionary new];
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_uploadingService = [[OWSUploadingService alloc] initWithNetworkManager:networkManager];
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_dbConnection = storageManager.newDatabaseConnection;
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_disappearingMessagesJob = [[OWSDisappearingMessagesJob alloc] initWithStorageManager:storageManager];
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OWSSingletonAssert();
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return self;
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}
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- (void)setBlockingManager:(OWSBlockingManager *)blockingManager
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{
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OWSAssert(blockingManager);
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OWSAssert(!_blockingManager);
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_blockingManager = blockingManager;
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}
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- (NSOperationQueue *)sendingQueueForMessage:(TSOutgoingMessage *)message
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{
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OWSAssert(message);
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NSString *kDefaultQueueKey = @"kDefaultQueueKey";
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NSString *queueKey = message.uniqueThreadId ?: kDefaultQueueKey;
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OWSAssert(queueKey.length > 0);
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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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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)sendMessage:(TSOutgoingMessage *)message
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success:(void (^)())successHandler
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failure:(void (^)(NSError *error))failureHandler
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{
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OWSAssert(message);
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AssertIsOnMainThread();
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[message updateWithMessageState:TSOutgoingMessageStateAttemptingOut];
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OWSSendMessageOperation *sendMessageOperation = [[OWSSendMessageOperation alloc] initWithMessage:message
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messageSender:self
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success:successHandler
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failure:failureHandler];
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// We call `startBackgroundTask` here to prevent our app from suspending while being backgrounded
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// until the operation is completed - at which point the OWSSendMessageOperation ends it's background task.
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[sendMessageOperation startBackgroundTask];
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NSOperationQueue *sendingQueue = [self sendingQueueForMessage:message];
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[sendingQueue addOperation:sendMessageOperation];
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}
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- (void)attemptToSendMessage:(TSOutgoingMessage *)message
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success:(void (^)())successHandler
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failure:(RetryableFailureHandler)failureHandler
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{
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DDLogDebug(@"%@ sending message: %@", self.tag, message.debugDescription);
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[self ensureAnyAttachmentsUploaded:message
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success:^() {
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[self deliverMessage:message
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success:successHandler
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failure:^(NSError *error) {
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DDLogDebug(@"%@ Message send attempt failed: %@", self.tag, message.debugDescription);
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failureHandler(error);
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}];
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}
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failure:^(NSError *error) {
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DDLogDebug(@"%@ Attachment upload attempt failed: %@", self.tag, message.debugDescription);
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failureHandler(error);
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}];
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}
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- (void)ensureAnyAttachmentsUploaded:(TSOutgoingMessage *)message
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success:(void (^)())successHandler
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failure:(RetryableFailureHandler)failureHandler
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{
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if (!message.hasAttachments) {
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DDLogDebug(@"%@ No attachments for message: %@", self.tag, message);
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return successHandler();
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}
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TSAttachmentStream *attachmentStream =
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[TSAttachmentStream fetchObjectWithUniqueID:message.attachmentIds.firstObject];
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if (!attachmentStream) {
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DDLogError(@"%@ Unable to find local saved attachment to upload.", self.tag);
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NSError *error = OWSErrorMakeFailedToSendOutgoingMessageError();
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// Not finding local attachment is a terminal failure.
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[error setIsRetryable:NO];
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return failureHandler(error);
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}
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[self.uploadingService uploadAttachmentStream:attachmentStream
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message:message
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success:successHandler
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failure:failureHandler];
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}
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- (void)sendTemporaryAttachmentData:(NSData *)attachmentData
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contentType:(NSString *)contentType
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inMessage:(TSOutgoingMessage *)message
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success:(void (^)())successHandler
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failure:(void (^)(NSError *error))failureHandler
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{
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void (^successWithDeleteHandler)() = ^() {
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successHandler();
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DDLogDebug(@"Removing temporary attachment message.");
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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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DDLogDebug(@"Removing temporary attachment message.");
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[message remove];
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};
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[self sendAttachmentData:attachmentData
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contentType:contentType
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filename: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)sendAttachmentData:(NSData *)data
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contentType:(NSString *)contentType
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filename:(nullable NSString *)filename
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inMessage:(TSOutgoingMessage *)message
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success:(void (^)())successHandler
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failure:(void (^)(NSError *error))failureHandler
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{
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// There's an odd bug wherein instances of NSData/Data created in Swift
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// code reliably crash on iOS 9 when calling [NSData writeToFile:...].
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// We can avoid these crashes by simply copying the Data.
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//
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// TODO: Move the iOSVersion header to SSK.
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NSData *dataCopy = (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(10, 0) ? data : [data copy]);
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dispatch_async([OWSDispatch attachmentsQueue], ^{
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TSAttachmentStream *attachmentStream = [[TSAttachmentStream alloc] initWithContentType:contentType];
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NSError *error;
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[attachmentStream writeData:dataCopy error:&error];
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if (error) {
|
|
DDLogError(@"%@ Failed to write data for outgoing attachment with error:%@", self.tag, error);
|
|
return failureHandler(error);
|
|
}
|
|
|
|
[attachmentStream save];
|
|
[message.attachmentIds addObject:attachmentStream.uniqueId];
|
|
if (filename) {
|
|
message.attachmentFilenameMap[attachmentStream.uniqueId] = filename;
|
|
}
|
|
[message save];
|
|
|
|
dispatch_async(dispatch_get_main_queue(), ^{
|
|
[self sendMessage:message success:successHandler failure:failureHandler];
|
|
});
|
|
});
|
|
}
|
|
|
|
- (void)resendMessageFromKeyError:(TSInvalidIdentityKeySendingErrorMessage *)errorMessage
|
|
success:(void (^)())successHandler
|
|
failure:(void (^)(NSError *error))failureHandler
|
|
{
|
|
AssertIsOnMainThread();
|
|
OWSAssert(errorMessage);
|
|
|
|
NSString *failedMessageId = errorMessage.messageId;
|
|
|
|
// Here we remove the existing error message because sending a new message will either
|
|
// 1.) succeed and create a new successful message in the thread or...
|
|
// 2.) fail and create a new identical error message in the thread.
|
|
[errorMessage remove];
|
|
|
|
// The failedMessageId might be nil for transient, unsaved outgoing messages.
|
|
// See [TSOutgoingMessage saveWithTransaction:] for details of which messages
|
|
// we do not save.
|
|
|
|
if (!failedMessageId) {
|
|
return;
|
|
}
|
|
|
|
TSOutgoingMessage *message = [TSOutgoingMessage fetchObjectWithUniqueID:failedMessageId];
|
|
OWSAssert(message);
|
|
|
|
return [self sendMessage:message success:successHandler failure:failureHandler];
|
|
}
|
|
|
|
- (NSArray<SignalRecipient *> *)getRecipients:(NSArray<NSString *> *)identifiers error:(NSError **)error
|
|
{
|
|
NSMutableArray<SignalRecipient *> *recipients = [NSMutableArray new];
|
|
|
|
for (NSString *recipientId in identifiers) {
|
|
SignalRecipient *existingRecipient = [SignalRecipient recipientWithTextSecureIdentifier:recipientId];
|
|
|
|
if (existingRecipient) {
|
|
[recipients addObject:existingRecipient];
|
|
} else {
|
|
SignalRecipient *newRecipient = [self.contactsUpdater synchronousLookup:recipientId error:error];
|
|
if (newRecipient) {
|
|
[recipients addObject:newRecipient];
|
|
}
|
|
}
|
|
}
|
|
|
|
if (recipients.count == 0 && !*error) {
|
|
// error should be set in contactsUpater, but just in case.
|
|
DDLogError(@"%@ Unknown error finding contacts", self.tag);
|
|
*error = OWSErrorMakeFailedToSendOutgoingMessageError();
|
|
}
|
|
|
|
return [recipients copy];
|
|
}
|
|
|
|
- (void)deliverMessage:(TSOutgoingMessage *)message
|
|
success:(void (^)())successHandler
|
|
failure:(RetryableFailureHandler)failureHandler
|
|
{
|
|
TSThread *thread = message.thread;
|
|
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
if ([thread isKindOfClass:[TSGroupThread class]]) {
|
|
TSGroupThread *gThread = (TSGroupThread *)thread;
|
|
|
|
NSError *error;
|
|
NSArray<SignalRecipient *> *recipients =
|
|
[self getRecipients:gThread.groupModel.groupMemberIds error:&error];
|
|
|
|
if (recipients.count == 0) {
|
|
if (!error) {
|
|
DDLogError(@"%@ Unknown error finding contacts", self.tag);
|
|
error = OWSErrorMakeFailedToSendOutgoingMessageError();
|
|
}
|
|
// If no recipients were found, there's no reason to retry. It will just fail again.
|
|
[error setIsRetryable:NO];
|
|
failureHandler(error);
|
|
return;
|
|
}
|
|
|
|
[self groupSend:recipients message:message thread:gThread success:successHandler failure:failureHandler];
|
|
|
|
} else if ([thread isKindOfClass:[TSContactThread class]]
|
|
|| [message isKindOfClass:[OWSOutgoingSyncMessage class]]) {
|
|
|
|
TSContactThread *contactThread = (TSContactThread *)thread;
|
|
if ([contactThread.contactIdentifier isEqualToString:self.storageManager.localNumber]
|
|
&& ![message isKindOfClass:[OWSOutgoingSyncMessage class]]) {
|
|
|
|
[self handleSendToMyself:message];
|
|
successHandler();
|
|
return;
|
|
}
|
|
|
|
NSString *recipientContactId = [message isKindOfClass:[OWSOutgoingSyncMessage class]]
|
|
? self.storageManager.localNumber
|
|
: contactThread.contactIdentifier;
|
|
|
|
// 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.
|
|
OWSAssert(recipientContactId.length > 0);
|
|
NSArray<NSString *> *blockedPhoneNumbers = _blockingManager.blockedPhoneNumbers;
|
|
if ([blockedPhoneNumbers containsObject:recipientContactId]) {
|
|
DDLogInfo(@"%@ skipping 1:1 send to blocked contact: %@", self.tag, recipientContactId);
|
|
NSError *error = OWSErrorMakeMessageSendFailedToBlockListError();
|
|
// No need to retry - the user will continue to be blocked.
|
|
[error setIsRetryable:NO];
|
|
failureHandler(error);
|
|
return;
|
|
}
|
|
|
|
SignalRecipient *recipient = [SignalRecipient recipientWithTextSecureIdentifier:recipientContactId];
|
|
if (!recipient) {
|
|
NSError *error;
|
|
// possibly returns nil.
|
|
recipient = [self.contactsUpdater synchronousLookup:recipientContactId error:&error];
|
|
|
|
if (error) {
|
|
if (error.code == OWSErrorCodeNoSuchSignalRecipient) {
|
|
DDLogWarn(@"%@ recipient contact not found", self.tag);
|
|
[self unregisteredRecipient:recipient message:message thread:thread];
|
|
}
|
|
|
|
DDLogError(@"%@ contact lookup failed with error: %@", self.tag, error);
|
|
// No need to repeat trying to find a failure. Apart from repeatedly failing, it would also cause us
|
|
// to print redundant error messages.
|
|
[error setIsRetryable:NO];
|
|
failureHandler(error);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!recipient) {
|
|
NSError *error = OWSErrorMakeFailedToSendOutgoingMessageError();
|
|
DDLogWarn(@"recipient contact still not found after attempting lookup.");
|
|
// No need to repeat trying to find a failure. Apart from repeatedly failing, it would also cause us to
|
|
// print redundant error messages.
|
|
[error setIsRetryable:NO];
|
|
failureHandler(error);
|
|
return;
|
|
}
|
|
|
|
[self sendMessage:message
|
|
recipient:recipient
|
|
thread:thread
|
|
attempts:OWSMessageSenderRetryAttempts
|
|
success:successHandler
|
|
failure:failureHandler];
|
|
} else {
|
|
DDLogError(@"%@ Unexpected unhandlable message: %@", self.tag, message);
|
|
|
|
// Neither a group nor contact thread? This should never happen.
|
|
OWSAssert(NO);
|
|
|
|
NSError *error = OWSErrorMakeFailedToSendOutgoingMessageError();
|
|
[error setIsRetryable:NO];
|
|
failureHandler(error);
|
|
}
|
|
});
|
|
}
|
|
|
|
// For group sends, we're using chained futures to make the code more readable.
|
|
- (TOCFuture *)sendMessageFuture:(TSOutgoingMessage *)message
|
|
recipient:(SignalRecipient *)recipient
|
|
thread:(TSThread *)thread
|
|
{
|
|
TOCFutureSource *futureSource = [[TOCFutureSource alloc] init];
|
|
|
|
[self sendMessage:message
|
|
recipient:recipient
|
|
thread:thread
|
|
attempts:OWSMessageSenderRetryAttempts
|
|
success:^{
|
|
DDLogInfo(@"Marking group message as sent to recipient: %@", recipient.uniqueId);
|
|
[message updateWithSentRecipient:recipient.uniqueId];
|
|
[futureSource trySetResult:@1];
|
|
}
|
|
failure:^(NSError *error) {
|
|
[futureSource trySetFailure:error];
|
|
}];
|
|
|
|
return futureSource.future;
|
|
}
|
|
|
|
- (void)groupSend:(NSArray<SignalRecipient *> *)recipients
|
|
message:(TSOutgoingMessage *)message
|
|
thread:(TSThread *)thread
|
|
success:(void (^)())successHandler
|
|
failure:(RetryableFailureHandler)failureHandler
|
|
{
|
|
[self saveGroupMessage:message inThread:thread];
|
|
NSMutableArray<TOCFuture *> *futures = [NSMutableArray array];
|
|
|
|
for (SignalRecipient *recipient in recipients) {
|
|
// We don't need to send the message to ourselves...
|
|
if ([recipient.uniqueId isEqualToString:[TSStorageManager localNumber]]) {
|
|
continue;
|
|
}
|
|
if ([message wasSentToRecipient:recipient.uniqueId]) {
|
|
// Skip recipients we have already sent this message to (on an
|
|
// earlier retry, perhaps).
|
|
DDLogInfo(@"Skipping group message recipient; already sent: %@", recipient.uniqueId);
|
|
continue;
|
|
}
|
|
|
|
// ...otherwise we send.
|
|
[futures addObject:[self sendMessageFuture:message recipient:recipient thread:thread]];
|
|
}
|
|
|
|
TOCFuture *completionFuture = futures.toc_thenAll;
|
|
|
|
[completionFuture thenDo:^(id value) {
|
|
successHandler();
|
|
}];
|
|
|
|
[completionFuture catchDo:^(id failure) {
|
|
// failure from toc_thenAll yields an array of failed Futures, rather than the future's failure.
|
|
NSError *firstRetryableError = nil;
|
|
NSError *firstNonRetryableError = nil;
|
|
|
|
if ([failure isKindOfClass:[NSArray class]]) {
|
|
NSArray *groupSendFutures = (NSArray *)failure;
|
|
for (TOCFuture *groupSendFuture in groupSendFutures) {
|
|
if (groupSendFuture.hasFailed) {
|
|
id failureResult = groupSendFuture.forceGetFailure;
|
|
if ([failureResult isKindOfClass:[NSError class]]) {
|
|
NSError *error = failureResult;
|
|
|
|
// Some errors should be ignored when sending messages
|
|
// to groups. See discussion on
|
|
// NSError (OWSMessageSender) category.
|
|
if ([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);
|
|
}
|
|
|
|
if ([error isRetryable] && !firstRetryableError) {
|
|
firstRetryableError = error;
|
|
} else if (![error isRetryable] && !firstNonRetryableError) {
|
|
firstNonRetryableError = error;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// If any of the group 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();
|
|
}
|
|
}
|
|
}];
|
|
}
|
|
|
|
- (void)unregisteredRecipient:(SignalRecipient *)recipient
|
|
message:(TSOutgoingMessage *)message
|
|
thread:(TSThread *)thread
|
|
{
|
|
[self.dbConnection asyncReadWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
[recipient removeWithTransaction:transaction];
|
|
[[TSInfoMessage userNotRegisteredMessageInThread:thread]
|
|
saveWithTransaction:transaction];
|
|
}];
|
|
}
|
|
|
|
- (void)sendMessage:(TSOutgoingMessage *)message
|
|
recipient:(SignalRecipient *)recipient
|
|
thread:(TSThread *)thread
|
|
attempts:(int)remainingAttempts
|
|
success:(void (^)())successHandler
|
|
failure:(RetryableFailureHandler)failureHandler
|
|
{
|
|
DDLogDebug(@"%@ sending message to service: %@", self.tag, message.debugDescription);
|
|
AssertIsOnSendingQueue();
|
|
|
|
if ([TSPreKeyManager isAppLockedDueToPreKeyUpdateFailures]) {
|
|
OWSAnalyticsError(@"Message send failed due to prekey update failures");
|
|
|
|
// 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 registerPreKeysWithMode:RefreshPreKeysMode_SignedOnly
|
|
success:^{
|
|
DDLogInfo(@"%@ New prekeys registered with server.", self.tag);
|
|
}
|
|
failure:^(NSError *error) {
|
|
DDLogWarn(@"%@ Failed to update prekeys with the server: %@", self.tag, error);
|
|
}];
|
|
|
|
DDLogError(@"%@ Message send failed due to repeated inability to update prekeys.", self.tag);
|
|
NSError *error = OWSErrorMakeMessageSendDisabledDueToPreKeyUpdateFailuresError();
|
|
[error setIsRetryable:YES];
|
|
return failureHandler(error);
|
|
}
|
|
|
|
if (remainingAttempts <= 0) {
|
|
// We should always fail with a specific error.
|
|
DDLogError(@"%@ Unexpected generic failure.", self.tag);
|
|
OWSAssert(NO);
|
|
|
|
NSError *error = OWSErrorMakeFailedToSendOutgoingMessageError();
|
|
[error setIsRetryable:YES];
|
|
return failureHandler(error);
|
|
}
|
|
remainingAttempts -= 1;
|
|
|
|
NSArray<NSDictionary *> *deviceMessages;
|
|
@try {
|
|
deviceMessages = [self deviceMessages:message forRecipient:recipient inThread:thread];
|
|
} @catch (NSException *exception) {
|
|
deviceMessages = @[];
|
|
if ([exception.name isEqualToString:UntrustedIdentityKeyException]) {
|
|
[[TSInvalidIdentityKeySendingErrorMessage
|
|
untrustedKeyWithOutgoingMessage:message
|
|
inThread:thread
|
|
forRecipient:exception.userInfo[TSInvalidRecipientKey]
|
|
preKeyBundle:exception.userInfo[TSInvalidPreKeyBundleKey]] save];
|
|
NSError *error = OWSErrorWithCodeDescription(OWSErrorCodeUntrustedIdentityKey,
|
|
NSLocalizedString(@"FAILED_SENDING_BECAUSE_UNTRUSTED_IDENTITY_KEY",
|
|
@"action sheet header when re-sending message which failed because of untrusted identity keys"));
|
|
// 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];
|
|
return failureHandler(error);
|
|
}
|
|
|
|
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];
|
|
return failureHandler(error);
|
|
}
|
|
|
|
if (remainingAttempts == 0) {
|
|
DDLogWarn(
|
|
@"%@ Terminal failure to build any device messages. Giving up with exception:%@", self.tag, 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];
|
|
return failureHandler(error);
|
|
}
|
|
}
|
|
|
|
TSSubmitMessageRequest *request = [[TSSubmitMessageRequest alloc] initWithRecipient:recipient.uniqueId
|
|
messages:deviceMessages
|
|
relay:recipient.relay
|
|
timeStamp:message.timestamp];
|
|
|
|
[self.networkManager makeRequest:request
|
|
success:^(NSURLSessionDataTask *task, id responseObject) {
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
[recipient save];
|
|
[self handleMessageSentLocally:message];
|
|
successHandler();
|
|
});
|
|
}
|
|
failure:^(NSURLSessionDataTask *task, NSError *error) {
|
|
DDLogDebug(@"%@ failure sending to service: %@", self.tag, message.debugDescription);
|
|
[DDLog flushLog];
|
|
|
|
NSHTTPURLResponse *response = (NSHTTPURLResponse *)task.response;
|
|
long statuscode = response.statusCode;
|
|
NSData *responseData = error.userInfo[AFNetworkingOperationFailingURLResponseDataErrorKey];
|
|
|
|
void (^retrySend)() = ^void() {
|
|
if (remainingAttempts <= 0) {
|
|
// Since we've already repeatedly failed to send to the messaging API,
|
|
// it's unlikely that repeating the whole process will succeed.
|
|
[error setIsRetryable:NO];
|
|
return failureHandler(error);
|
|
}
|
|
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
DDLogDebug(@"%@ Retrying: %@", self.tag, message.debugDescription);
|
|
[self sendMessage:message
|
|
recipient:recipient
|
|
thread:thread
|
|
attempts:remainingAttempts
|
|
success:successHandler
|
|
failure:failureHandler];
|
|
});
|
|
};
|
|
|
|
switch (statuscode) {
|
|
case 401: {
|
|
DDLogWarn(@"%@ Unable to send due to invalid credentials. Did the user's client get de-authed by registering elsewhere?", self.tag);
|
|
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 failureHandler(error);
|
|
}
|
|
case 404: {
|
|
[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];
|
|
return failureHandler(error);
|
|
}
|
|
case 409: {
|
|
// Mismatched devices
|
|
DDLogWarn(@"%@ Mismatch Devices.", self.tag);
|
|
|
|
NSError *error;
|
|
NSDictionary *serializedResponse =
|
|
[NSJSONSerialization JSONObjectWithData:responseData options:0 error:&error];
|
|
if (error) {
|
|
DDLogError(@"%@ Failed to serialize response of mismatched devices: %@", self.tag, error);
|
|
[error setIsRetryable:YES];
|
|
return failureHandler(error);
|
|
}
|
|
|
|
[self handleMismatchedDevices:serializedResponse recipient:recipient completion:retrySend];
|
|
break;
|
|
}
|
|
case 410: {
|
|
// Stale devices
|
|
DDLogWarn(@"Stale devices");
|
|
|
|
if (!responseData) {
|
|
DDLogWarn(@"Stale devices but server didn't specify devices in response.");
|
|
NSError *error = OWSErrorMakeUnableToProcessServerResponseError();
|
|
[error setIsRetryable:YES];
|
|
return failureHandler(error);
|
|
}
|
|
|
|
[self handleStaleDevicesWithResponse:responseData
|
|
recipientId:recipient.uniqueId
|
|
completion:retrySend];
|
|
break;
|
|
}
|
|
default:
|
|
retrySend();
|
|
break;
|
|
}
|
|
}];
|
|
}
|
|
|
|
- (void)handleMismatchedDevices:(NSDictionary *)dictionary
|
|
recipient:(SignalRecipient *)recipient
|
|
completion:(void (^)())completionHandler
|
|
{
|
|
NSArray *extraDevices = [dictionary objectForKey:@"extraDevices"];
|
|
NSArray *missingDevices = [dictionary objectForKey:@"missingDevices"];
|
|
|
|
dispatch_async([OWSDispatch sessionStoreQueue], ^{
|
|
if (extraDevices && extraDevices.count > 0) {
|
|
for (NSNumber *extraDeviceId in extraDevices) {
|
|
[self.storageManager deleteSessionForContact:recipient.uniqueId deviceId:extraDeviceId.intValue];
|
|
}
|
|
|
|
[recipient removeDevices:[NSSet setWithArray:extraDevices]];
|
|
}
|
|
|
|
if (missingDevices && missingDevices.count > 0) {
|
|
[recipient addDevices:[NSSet setWithArray:missingDevices]];
|
|
}
|
|
|
|
[recipient save];
|
|
completionHandler();
|
|
});
|
|
}
|
|
|
|
- (void)handleMessageSentLocally:(TSOutgoingMessage *)message
|
|
{
|
|
if (message.shouldSyncTranscript) {
|
|
// TODO: I suspect we shouldn't optimistically set hasSyncedTranscript.
|
|
// We could set this in a success handler for [sendSyncTranscriptForMessage:].
|
|
[message updateWithHasSyncedTranscript:YES];
|
|
[self sendSyncTranscriptForMessage:message];
|
|
}
|
|
|
|
[self.disappearingMessagesJob setExpirationForMessage:message];
|
|
}
|
|
|
|
- (void)handleMessageSentRemotely:(TSOutgoingMessage *)message sentAt:(uint64_t)sentAt
|
|
{
|
|
[message updateWithWasSentAndDelivered];
|
|
[self becomeConsistentWithDisappearingConfigurationForMessage:message];
|
|
[self.disappearingMessagesJob setExpirationForMessage:message expirationStartedAt:sentAt];
|
|
}
|
|
|
|
- (void)becomeConsistentWithDisappearingConfigurationForMessage:(TSOutgoingMessage *)outgoingMessage
|
|
{
|
|
[self.disappearingMessagesJob becomeConsistentWithConfigurationForMessage:outgoingMessage
|
|
contactsManager:self.contactsManager];
|
|
}
|
|
|
|
- (void)handleSendToMyself:(TSOutgoingMessage *)outgoingMessage
|
|
{
|
|
[self handleMessageSentLocally:outgoingMessage];
|
|
|
|
if (!(outgoingMessage.body || outgoingMessage.hasAttachments)) {
|
|
DDLogDebug(
|
|
@"%@ Refusing to make incoming copy of non-standard message sent to self:%@", self.tag, outgoingMessage);
|
|
return;
|
|
}
|
|
|
|
// Getting the local number uses a transaction, so we need to do that before we
|
|
// create a new transaction to avoid deadlock.
|
|
NSString *contactId = [TSAccountManager localNumber];
|
|
[self.dbConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
|
|
TSContactThread *cThread =
|
|
[TSContactThread getOrCreateThreadWithContactId:contactId transaction:transaction];
|
|
[cThread saveWithTransaction:transaction];
|
|
TSIncomingMessage *incomingMessage =
|
|
[[TSIncomingMessage alloc] initWithTimestamp:(outgoingMessage.timestamp + 1)
|
|
inThread:cThread
|
|
authorId:[cThread contactIdentifier]
|
|
sourceDeviceId:[OWSDevice currentDeviceId]
|
|
messageBody:outgoingMessage.body
|
|
attachmentIds:outgoingMessage.attachmentIds
|
|
expiresInSeconds:outgoingMessage.expiresInSeconds];
|
|
[incomingMessage saveWithTransaction:transaction];
|
|
}];
|
|
}
|
|
|
|
- (void)sendSyncTranscriptForMessage:(TSOutgoingMessage *)message
|
|
{
|
|
OWSOutgoingSentMessageTranscript *sentMessageTranscript =
|
|
[[OWSOutgoingSentMessageTranscript alloc] initWithOutgoingMessage:message];
|
|
|
|
[self sendMessage:sentMessageTranscript
|
|
recipient:[SignalRecipient selfRecipient]
|
|
thread:message.thread
|
|
attempts:OWSMessageSenderRetryAttempts
|
|
success:^{
|
|
DDLogInfo(@"Succesfully sent sync transcript.");
|
|
}
|
|
failure:^(NSError *error) {
|
|
// FIXME: We don't yet honor the isRetryable flag here, since sendSyncTranscriptForMessage
|
|
// isn't yet wrapped in our retryable SendMessageOperation. Addressing this would require
|
|
// a refactor to the MessageSender. Note that we *do* however continue to respect the
|
|
// OWSMessageSenderRetryAttempts, which is an "inner" retry loop, encompassing only the
|
|
// messaging API.
|
|
DDLogInfo(@"Failed to send sync transcript: %@ (isRetryable: %d)", error, [error isRetryable]);
|
|
}];
|
|
}
|
|
|
|
- (NSArray<NSDictionary *> *)deviceMessages:(TSOutgoingMessage *)message
|
|
forRecipient:(SignalRecipient *)recipient
|
|
inThread:(TSThread *)thread
|
|
{
|
|
NSMutableArray *messagesArray = [NSMutableArray arrayWithCapacity:recipient.devices.count];
|
|
NSData *plainText = [message buildPlainTextData];
|
|
|
|
for (NSNumber *deviceNumber in recipient.devices) {
|
|
@try {
|
|
__block NSDictionary *messageDict;
|
|
__block NSException *encryptionException;
|
|
// Mutating session state is not thread safe, so we operate on a serial queue, shared with decryption
|
|
// operations.
|
|
dispatch_sync([OWSDispatch sessionStoreQueue], ^{
|
|
@try {
|
|
messageDict = [self encryptedMessageWithPlaintext:plainText
|
|
toRecipient:recipient.uniqueId
|
|
deviceId:deviceNumber
|
|
keyingStorage:[TSStorageManager sharedManager]
|
|
legacy:message.isLegacyMessage];
|
|
} @catch (NSException *exception) {
|
|
encryptionException = exception;
|
|
}
|
|
});
|
|
if (encryptionException) {
|
|
DDLogInfo(@"%@ Exception during encryption: %@", self.tag, encryptionException);
|
|
@throw encryptionException;
|
|
}
|
|
|
|
if (messageDict) {
|
|
[messagesArray addObject:messageDict];
|
|
} else {
|
|
@throw [NSException exceptionWithName:InvalidMessageException
|
|
reason:@"Failed to encrypt message"
|
|
userInfo:nil];
|
|
}
|
|
} @catch (NSException *exception) {
|
|
if ([exception.name isEqualToString:OWSMessageSenderInvalidDeviceException]) {
|
|
[recipient removeDevices:[NSSet setWithObject:deviceNumber]];
|
|
} else {
|
|
@throw exception;
|
|
}
|
|
}
|
|
}
|
|
|
|
return [messagesArray copy];
|
|
}
|
|
|
|
- (NSDictionary *)encryptedMessageWithPlaintext:(NSData *)plainText
|
|
toRecipient:(NSString *)identifier
|
|
deviceId:(NSNumber *)deviceNumber
|
|
keyingStorage:(TSStorageManager *)storage
|
|
legacy:(BOOL)isLegacymessage
|
|
{
|
|
if (![storage containsSession:identifier deviceId:[deviceNumber intValue]]) {
|
|
__block dispatch_semaphore_t sema = dispatch_semaphore_create(0);
|
|
__block PreKeyBundle *bundle;
|
|
__block NSException *exception;
|
|
[self.networkManager makeRequest:[[TSRecipientPrekeyRequest alloc] initWithRecipient:identifier
|
|
deviceId:[deviceNumber stringValue]]
|
|
success:^(NSURLSessionDataTask *task, id responseObject) {
|
|
bundle = [PreKeyBundle preKeyBundleFromDictionary:responseObject forDeviceNumber:deviceNumber];
|
|
dispatch_semaphore_signal(sema);
|
|
}
|
|
failure:^(NSURLSessionDataTask *task, NSError *error) {
|
|
DDLogError(@"Server replied on PreKeyBundle request with error: %@", error);
|
|
NSHTTPURLResponse *response = (NSHTTPURLResponse *)task.response;
|
|
if (response.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 (response.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) {
|
|
@throw [NSException exceptionWithName:InvalidVersionException
|
|
reason:@"Can't get a prekey bundle from the server with required information"
|
|
userInfo:nil];
|
|
} else {
|
|
SessionBuilder *builder = [[SessionBuilder alloc] initWithSessionStore:storage
|
|
preKeyStore:storage
|
|
signedPreKeyStore:storage
|
|
identityKeyStore:storage
|
|
recipientId:identifier
|
|
deviceId:[deviceNumber intValue]];
|
|
@try {
|
|
// Mutating session state is not thread safe.
|
|
@synchronized(self) {
|
|
[builder processPrekeyBundle:bundle];
|
|
}
|
|
} @catch (NSException *exception) {
|
|
if ([exception.name isEqualToString:UntrustedIdentityKeyException]) {
|
|
@throw [NSException
|
|
exceptionWithName:UntrustedIdentityKeyException
|
|
reason:nil
|
|
userInfo:@{ TSInvalidPreKeyBundleKey : bundle, TSInvalidRecipientKey : identifier }];
|
|
}
|
|
@throw exception;
|
|
}
|
|
}
|
|
}
|
|
|
|
SessionCipher *cipher = [[SessionCipher alloc] initWithSessionStore:storage
|
|
preKeyStore:storage
|
|
signedPreKeyStore:storage
|
|
identityKeyStore:storage
|
|
recipientId:identifier
|
|
deviceId:[deviceNumber intValue]];
|
|
|
|
id<CipherMessage> encryptedMessage = [cipher encryptMessage:[plainText paddedMessageBody]];
|
|
|
|
|
|
NSData *serializedMessage = encryptedMessage.serialized;
|
|
TSWhisperMessageType messageType = [self messageTypeForCipherMessage:encryptedMessage];
|
|
|
|
OWSMessageServiceParams *messageParams;
|
|
// DEPRECATED - Remove after all clients have been upgraded.
|
|
if (isLegacymessage) {
|
|
messageParams = [[OWSLegacyMessageServiceParams alloc] initWithType:messageType
|
|
recipientId:identifier
|
|
device:[deviceNumber intValue]
|
|
body:serializedMessage
|
|
registrationId:cipher.remoteRegistrationId];
|
|
} else {
|
|
messageParams = [[OWSMessageServiceParams alloc] initWithType:messageType
|
|
recipientId:identifier
|
|
device:[deviceNumber intValue]
|
|
content:serializedMessage
|
|
registrationId:cipher.remoteRegistrationId];
|
|
}
|
|
|
|
NSError *error;
|
|
NSDictionary *jsonDict = [MTLJSONAdapter JSONDictionaryFromModel:messageParams error:&error];
|
|
|
|
if (error) {
|
|
DDLogError(@"Error while making JSON dictionary of message: %@", error.debugDescription);
|
|
return nil;
|
|
}
|
|
|
|
return jsonDict;
|
|
}
|
|
|
|
- (TSWhisperMessageType)messageTypeForCipherMessage:(id<CipherMessage>)cipherMessage
|
|
{
|
|
if ([cipherMessage isKindOfClass:[PreKeyWhisperMessage class]]) {
|
|
return TSPreKeyWhisperMessageType;
|
|
} else if ([cipherMessage isKindOfClass:[WhisperMessage class]]) {
|
|
return TSEncryptedWhisperMessageType;
|
|
}
|
|
return TSUnknownMessageType;
|
|
}
|
|
|
|
- (void)saveGroupMessage:(TSOutgoingMessage *)message inThread:(TSThread *)thread
|
|
{
|
|
if (message.groupMetaMessage == TSGroupMessageDeliver) {
|
|
// TODO: Why is this necessary?
|
|
[message save];
|
|
} else if (message.groupMetaMessage == TSGroupMessageQuit) {
|
|
[[[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];
|
|
}
|
|
}
|
|
|
|
- (void)handleStaleDevicesWithResponse:(NSData *)responseData
|
|
recipientId:(NSString *)identifier
|
|
completion:(void (^)())completionHandler
|
|
{
|
|
dispatch_async([OWSDispatch sendingQueue], ^{
|
|
NSDictionary *serialization = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:nil];
|
|
NSArray *devices = serialization[@"staleDevices"];
|
|
|
|
if (!([devices count] > 0)) {
|
|
return;
|
|
}
|
|
|
|
dispatch_async([OWSDispatch sessionStoreQueue], ^{
|
|
for (NSUInteger i = 0; i < [devices count]; i++) {
|
|
int deviceNumber = [devices[i] intValue];
|
|
[[TSStorageManager sharedManager] deleteSessionForContact:identifier deviceId:deviceNumber];
|
|
}
|
|
completionHandler();
|
|
});
|
|
});
|
|
}
|
|
|
|
#pragma mark - Logging
|
|
|
|
+ (NSString *)tag
|
|
{
|
|
return [NSString stringWithFormat:@"[%@]", self.class];
|
|
}
|
|
|
|
- (NSString *)tag
|
|
{
|
|
return self.class.tag;
|
|
}
|
|
|
|
@end
|
|
|
|
NS_ASSUME_NONNULL_END
|