58 lines
1.5 KiB
Objective-C
58 lines
1.5 KiB
Objective-C
//
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// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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#import "LegacyReceivingChain.h"
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@interface LegacyReceivingChain ()
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@property (nonatomic) LegacyChainKey *chainKey;
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@end
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@implementation LegacyReceivingChain
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static NSString *const kCoderChainKey = @"kCoderChainKey";
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static NSString *const kCoderSenderRatchet = @"kCoderSenderRatchet";
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static NSString *const kCoderMessageKeys = @"kCoderMessageKeys";
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+ (BOOL)supportsSecureCoding
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{
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return YES;
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}
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- (id)initWithCoder:(NSCoder *)aDecoder
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{
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self = [self initWithChainKey:[aDecoder decodeObjectOfClass:[NSData class] forKey:kCoderChainKey]
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senderRatchetKey:[aDecoder decodeObjectOfClass:[NSData class] forKey:kCoderSenderRatchet]];
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if (self) {
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self.messageKeysList = [aDecoder decodeObjectOfClass:[NSMutableArray class] forKey:kCoderMessageKeys];
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}
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return self;
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}
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- (void)encodeWithCoder:(NSCoder *)aCoder
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{
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[aCoder encodeObject:self.chainKey forKey:kCoderChainKey];
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[aCoder encodeObject:self.senderRatchetKey forKey:kCoderSenderRatchet];
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[aCoder encodeObject:self.messageKeysList forKey:kCoderMessageKeys];
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}
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- (instancetype)initWithChainKey:(LegacyChainKey *)chainKey senderRatchetKey:(NSData *)senderRatchet
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{
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OWSAssert(chainKey);
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OWSAssert(senderRatchet);
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self = [super init];
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self.chainKey = chainKey;
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self.senderRatchetKey = senderRatchet;
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self.messageKeysList = [NSMutableArray array];
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return self;
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}
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@end
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