session-ios/SignalServiceKit/src/Protocols/ProtoBuf+OWS.m

//
//  Copyright (c) 2017 Open Whisper Systems. All rights reserved.
//

#import "ProfileManagerProtocol.h"
#import "ProtoBuf+OWS.h"
#import "SignalRecipient.h"
#import "TSThread.h"
#import "TextSecureKitEnv.h"

NS_ASSUME_NONNULL_BEGIN

@implementation PBGeneratedMessageBuilder (OWS)

- (BOOL)shouldMessageHaveLocalProfileKey:(TSThread *)thread recipientId:(NSString *)recipientId
//                            recipient:(SignalRecipient *)recipient
{
    OWSAssert(thread);
    OWSAssert(recipientId.length > 0);

    id<ProfileManagerProtocol> profileManager = [TextSecureKitEnv sharedEnv].profileManager;

    // For 1:1 threads, we want to include the profile key IFF the
    // contact is in the whitelist.
    //
    // For Group threads, we want to include the profile key IFF the
    // recipient OR the group is in the whitelist.
    if ([profileManager isUserInProfileWhitelist:recipientId]) {
        return YES;
    } else if ([profileManager isThreadInProfileWhitelist:thread]) {
        return YES;
    }

    return NO;
}

- (NSData *)localProfileKey
{
    id<ProfileManagerProtocol> profileManager = [TextSecureKitEnv sharedEnv].profileManager;
    return profileManager.localProfileKey;
}

@end

#pragma mark -

@implementation OWSSignalServiceProtosDataMessageBuilder (OWS)

- (void)addLocalProfileKeyIfNecessary:(TSThread *)thread recipientId:(NSString *)recipientId
{
    OWSAssert(thread);
    OWSAssert(recipientId.length > 0);

    if ([self shouldMessageHaveLocalProfileKey:thread recipientId:recipientId]) {
        [self setProfileKey:self.localProfileKey];
    }
}

@end

#pragma mark -

@implementation OWSSignalServiceProtosCallMessageBuilder (OWS)

- (void)addLocalProfileKeyIfNecessary:(TSThread *)thread recipientId:(NSString *)recipientId
{
    OWSAssert(thread);
    OWSAssert(recipientId.length > 0);

    if ([self shouldMessageHaveLocalProfileKey:thread recipientId:recipientId]) {
        [self setProfileKey:self.localProfileKey];
    }
}

@end

#pragma mark -

@implementation OWSSignalServiceProtosSyncMessageBuilder (OWS)

- (void)addLocalProfileKey
{
    [self setProfileKey:self.localProfileKey];
}

@end

NS_ASSUME_NONNULL_END