Fix incorrect override

SignalServiceKit/src/Loki/Messaging/LKDeviceLinkMessage.m

@@ -7,6 +7,7 @@
 
 @implementation LKDeviceLinkMessage
 
+#pragma mark Convenience
 - (LKDeviceLinkMessageKind)kind {
     if (self.masterSignature != nil) {
         return LKDeviceLinkMessageKindAuthorization;
@@ -15,6 +16,7 @@
     }
 }
 
+#pragma mark Initialization
 - (instancetype)initInThread:(TSThread *)thread masterHexEncodedPublicKey:(NSString *)masterHexEncodedPublicKey slaveHexEncodedPublicKey:(NSString *)slaveHexEncodedPublicKey masterSignature:(NSData *)masterSignature slaveSignature:(NSData *)slaveSignature {
     self = [self initOutgoingMessageWithTimestamp:NSDate.ows_millisecondTimeStamp inThread:thread messageBody:@"" attachmentIds:[NSMutableArray<NSString *> new]
         expiresInSeconds:0 expireStartedAt:0 isVoiceMessage:NO groupMetaMessage:TSGroupMetaMessageUnspecified quotedMessage:nil contactShare:nil linkPreview:nil];
@@ -27,22 +29,42 @@
     return self;
 }
 
-- (SSKProtoContentBuilder *)contentBuilder:(SignalRecipient *)recipient {
+#pragma mark Building
+- (nullable NSData *)buildPlainTextData:(SignalRecipient *)recipient
+{
+    // Prepare
+    SSKProtoContentBuilder *contentBuilder = [self contentBuilder:recipient];
+    NSError *error;
+    // Data message
+    SSKProtoDataMessage *_Nullable dataMessage = [self buildDataMessage:recipient.recipientId];
+    if (!dataMessage) {
+        OWSFailDebug(@"Failed to build data message.");
+        return nil;
+    }
+    [contentBuilder setDataMessage:dataMessage];
+    // Device link message
     SSKProtoLokiDeviceLinkMessageBuilder *deviceLinkMessageBuilder = [SSKProtoLokiDeviceLinkMessage builder];
     [deviceLinkMessageBuilder setMasterHexEncodedPublicKey:self.masterHexEncodedPublicKey];
     [deviceLinkMessageBuilder setSlaveHexEncodedPublicKey:self.slaveHexEncodedPublicKey];
     if (self.masterSignature != nil) { [deviceLinkMessageBuilder setMasterSignature:self.masterSignature]; }
     [deviceLinkMessageBuilder setSlaveSignature:self.slaveSignature];
-    NSError *error;
     SSKProtoLokiDeviceLinkMessage *deviceLinkMessage = [deviceLinkMessageBuilder buildAndReturnError:&error];
     if (error || deviceLinkMessage == nil) {
-        OWSFailDebug(@"Failed to build device link message due to error: %@", error);
+        OWSFailDebug(@"Failed to build device link message due to error: %@.", error);
+        return nil;
     }
-    SSKProtoContentBuilder *contentBuilder = [super contentBuilder:recipient];
     [contentBuilder setLokiDeviceLinkMessage:deviceLinkMessage];
-    return contentBuilder;
+    // Serialize
+    NSData *_Nullable contentAsData = [contentBuilder buildSerializedDataAndReturnError:&error];
+    if (error || !contentAsData) {
+        OWSFailDebug(@"Failed to build serialized message content due to error: %@.", error);
+        return nil;
+    }
+    // Return
+    return contentAsData;
 }
 
+#pragma mark Settings
 - (BOOL)shouldSyncTranscript { return NO; }
 - (BOOL)shouldBeSaved { return NO; }
 

SignalServiceKit/src/Messages/Interactions/TSOutgoingMessage.h

@@ -56,6 +56,7 @@ typedef NS_ENUM(NSInteger, TSGroupMetaMessage) {
 
 @class SSKProtoAttachmentPointer;
 @class SSKProtoContentBuilder;
+@class SSKProtoDataMessage;
 @class SSKProtoDataMessageBuilder;
 @class SignalRecipient;
 
@@ -158,6 +159,8 @@ typedef NS_ENUM(NSInteger, TSGroupMetaMessage) {
  */
 - (nullable SSKProtoDataMessageBuilder *)dataMessageBuilder;
 
+- (nullable SSKProtoDataMessage *)buildDataMessage:(NSString *_Nullable)recipientId;
+
 /**
  * Intermediate protobuf representation
  * Subclasses can augment if they want to manipulate the content message before building.