Send sync messages with link previews preference.

SignalMessaging/contacts/OWSSyncManager.m

@@ -239,11 +239,13 @@ NSString *const kSyncManagerLastContactSyncKey = @"kTSStorageManagerOWSSyncManag
     BOOL areReadReceiptsEnabled = SSKEnvironment.shared.readReceiptManager.areReadReceiptsEnabled;
     BOOL showUnidentifiedDeliveryIndicators = Environment.shared.preferences.shouldShowUnidentifiedDeliveryIndicators;
     BOOL showTypingIndicators = self.typingIndicators.areTypingIndicatorsEnabled;
+    BOOL sendLinkPreviews = SSKPreferences.areLinkPreviewsEnabled;
 
     OWSSyncConfigurationMessage *syncConfigurationMessage =
         [[OWSSyncConfigurationMessage alloc] initWithReadReceiptsEnabled:areReadReceiptsEnabled
                                       showUnidentifiedDeliveryIndicators:showUnidentifiedDeliveryIndicators
-                                                    showTypingIndicators:showTypingIndicators];
+                                                    showTypingIndicators:showTypingIndicators
+                                                        sendLinkPreviews:sendLinkPreviews];
 
     [self.editingDatabaseConnection readWriteWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull transaction) {
         [self.messageSenderJobQueue addMessage:syncConfigurationMessage transaction:transaction];

SignalServiceKit/src/Messages/DeviceSyncing/OWSSyncConfigurationMessage.h

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2019 Open Whisper Systems. All rights reserved.
 //
 
 #import "OWSOutgoingSyncMessage.h"
@@ -12,7 +12,8 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (instancetype)initWithReadReceiptsEnabled:(BOOL)readReceiptsEnabled
          showUnidentifiedDeliveryIndicators:(BOOL)showUnidentifiedDeliveryIndicators
-                       showTypingIndicators:(BOOL)showTypingIndicators NS_DESIGNATED_INITIALIZER;
+                       showTypingIndicators:(BOOL)showTypingIndicators
+                           sendLinkPreviews:(BOOL)sendLinkPreviews NS_DESIGNATED_INITIALIZER;
 
 - (nullable instancetype)initWithCoder:(NSCoder *)coder NS_DESIGNATED_INITIALIZER;
 

SignalServiceKit/src/Messages/DeviceSyncing/OWSSyncConfigurationMessage.m

@@ -1,5 +1,5 @@
 //
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
+//  Copyright (c) 2019 Open Whisper Systems. All rights reserved.
 //
 
 #import "OWSSyncConfigurationMessage.h"
@@ -12,6 +12,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, readonly) BOOL areReadReceiptsEnabled;
 @property (nonatomic, readonly) BOOL showUnidentifiedDeliveryIndicators;
 @property (nonatomic, readonly) BOOL showTypingIndicators;
+@property (nonatomic, readonly) BOOL sendLinkPreviews;
 
 @end
 
@@ -19,7 +20,9 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (instancetype)initWithReadReceiptsEnabled:(BOOL)areReadReceiptsEnabled
          showUnidentifiedDeliveryIndicators:(BOOL)showUnidentifiedDeliveryIndicators
-                       showTypingIndicators:(BOOL)showTypingIndicators {
+                       showTypingIndicators:(BOOL)showTypingIndicators
+                           sendLinkPreviews:(BOOL)sendLinkPreviews
+{
     self = [super init];
     if (!self) {
         return nil;
@@ -28,6 +31,7 @@ NS_ASSUME_NONNULL_BEGIN
     _areReadReceiptsEnabled = areReadReceiptsEnabled;
     _showUnidentifiedDeliveryIndicators = showUnidentifiedDeliveryIndicators;
     _showTypingIndicators = showTypingIndicators;
+    _sendLinkPreviews = sendLinkPreviews;
 
     return self;
 }
@@ -43,6 +47,7 @@ NS_ASSUME_NONNULL_BEGIN
     configurationBuilder.readReceipts = self.areReadReceiptsEnabled;
     configurationBuilder.unidentifiedDeliveryIndicators = self.showUnidentifiedDeliveryIndicators;
     configurationBuilder.typingIndicators = self.showTypingIndicators;
+    configurationBuilder.linkPreviews = self.sendLinkPreviews;
 
     NSError *error;
     SSKProtoSyncMessageConfiguration *_Nullable configurationProto = [configurationBuilder buildAndReturnError:&error];

SignalServiceKit/src/Util/SSKPreferences.swift

@@ -21,8 +21,9 @@ public class SSKPreferences: NSObject {
 
     @objc
     public class func setAreLinkPreviewsEnabled(value: Bool) {
-        return OWSPrimaryStorage.dbReadWriteConnection().setBool(value,
-                                                                 forKey: areLinkPreviewsEnabledKey,
-                                                                 inCollection: collection)
+        OWSPrimaryStorage.dbReadWriteConnection().setBool(value,
+                                                          forKey: areLinkPreviewsEnabledKey,
+                                                          inCollection: collection)
+        SSKEnvironment.shared.syncManager.sendConfigurationSyncMessage()
     }
 }