session-ios/SignalServiceKit/src/Messages/OWSMessageDecrypter.h

47 lines
1.4 KiB
Objective-C

//
// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
//
#import "OWSMessageHandler.h"
NS_ASSUME_NONNULL_BEGIN
@class OWSPrimaryStorage;
@class SSKProtoEnvelope;
@class YapDatabaseReadWriteTransaction;
@interface OWSMessageDecryptResult : NSObject
@property (nonatomic, readonly) NSData *envelopeData;
@property (nonatomic, readonly, nullable) NSData *plaintextData;
@property (nonatomic, readonly) NSString *source;
@property (nonatomic, readonly) UInt32 sourceDevice;
@property (nonatomic, readonly) BOOL isUDMessage;
@end
#pragma mark -
// Decryption result includes the envelope since the envelope
// may be altered by the decryption process.
typedef void (^DecryptSuccessBlock)(OWSMessageDecryptResult *result, YapDatabaseReadWriteTransaction *transaction);
typedef void (^DecryptFailureBlock)(void);
@interface OWSMessageDecrypter : OWSMessageHandler
- (instancetype)init NS_UNAVAILABLE;
- (instancetype)initWithPrimaryStorage:(OWSPrimaryStorage *)primaryStorage NS_DESIGNATED_INITIALIZER;
// decryptEnvelope: can be called from any thread.
// successBlock & failureBlock will be called an arbitrary thread.
//
// Exactly one of successBlock & failureBlock will be called,
// once.
- (void)decryptEnvelope:(SSKProtoEnvelope *)envelope
envelopeData:(NSData *)envelopeData
successBlock:(DecryptSuccessBlock)successBlock
failureBlock:(DecryptFailureBlock)failureBlock;
@end
NS_ASSUME_NONNULL_END