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session-ios/SignalServiceKit/src/Devices/OWSGroupsOutputStream.m

62 lines
2.1 KiB
Objective-C

//
// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
//
#import "OWSGroupsOutputStream.h"
#import "MIMETypeUtil.h"
#import "OWSDisappearingMessagesConfiguration.h"
#import "OWSSignalServiceProtos.pb.h"
#import "TSGroupModel.h"
#import "TSGroupThread.h"
#import <ProtocolBuffers/CodedOutputStream.h>
NS_ASSUME_NONNULL_BEGIN
@implementation OWSGroupsOutputStream
- (void)writeGroup:(TSGroupModel *)group transaction:(YapDatabaseReadTransaction *)transaction
{
OWSAssert(group);
OWSAssert(transaction);
OWSSignalServiceProtosGroupDetailsBuilder *groupBuilder = [OWSSignalServiceProtosGroupDetailsBuilder new];
[groupBuilder setId:group.groupId];
[groupBuilder setName:group.groupName];
[groupBuilder setMembersArray:group.groupMemberIds];
NSData *avatarPng;
if (group.groupImage) {
OWSSignalServiceProtosGroupDetailsAvatarBuilder *avatarBuilder =
[OWSSignalServiceProtosGroupDetailsAvatarBuilder new];
[avatarBuilder setContentType:OWSMimeTypeImagePng];
avatarPng = UIImagePNGRepresentation(group.groupImage);
[avatarBuilder setLength:(uint32_t)avatarPng.length];
[groupBuilder setAvatarBuilder:avatarBuilder];
}
TSGroupThread *_Nullable groupThread = [TSGroupThread threadWithGroupId:group.groupId transaction:transaction];
if (groupThread) {
OWSDisappearingMessagesConfiguration *_Nullable disappearingMessagesConfiguration =
[OWSDisappearingMessagesConfiguration fetchObjectWithUniqueID:groupThread.uniqueId transaction:transaction];
if (disappearingMessagesConfiguration && disappearingMessagesConfiguration.isEnabled) {
[groupBuilder setExpireTimer:disappearingMessagesConfiguration.durationSeconds];
}
}
NSData *groupData = [[groupBuilder build] data];
uint32_t groupDataLength = (uint32_t)groupData.length;
[self.delegateStream writeRawVarint32:groupDataLength];
[self.delegateStream writeRawData:groupData];
if (avatarPng) {
[self.delegateStream writeRawData:avatarPng];
}
}
@end
NS_ASSUME_NONNULL_END