Fix multi device contact syncing

SignalServiceKit/src/Loki/Protocol/Friend Requests/FriendRequestProtocol.swift

@@ -127,6 +127,10 @@ public final class FriendRequestProtocol : NSObject {
                 }
             }
         }
+        // Send a contact sync message
+        let masterHexEncodedPublicKey = storage.getMasterHexEncodedPublicKey(for: hexEncodedPublicKey, in: transaction) ?? hexEncodedPublicKey
+        let syncManager = SSKEnvironment.shared.syncManager
+        syncManager.syncContact(masterHexEncodedPublicKey, transaction: transaction)
     }
 
     @objc(sendFriendRequestAcceptanceMessageToHexEncodedPublicKey:using:)
@@ -231,6 +235,10 @@ public final class FriendRequestProtocol : NSObject {
         guard friendRequestStatus != .none else { return }
         // Become friends
         storage.setFriendRequestStatus(.friends, for: hexEncodedPublicKey, transaction: transaction)
+        // Send a contact sync message
+        let masterHexEncodedPublicKey = storage.getMasterHexEncodedPublicKey(for: hexEncodedPublicKey, in: transaction) ?? hexEncodedPublicKey
+        let syncManager = SSKEnvironment.shared.syncManager
+        syncManager.syncContact(masterHexEncodedPublicKey, transaction: transaction)
     }
 
     @objc(handleFriendRequestMessageIfNeededFromEnvelope:using:)

SignalServiceKit/src/Loki/Protocol/Session Management/SessionManagementProtocol.swift

@@ -184,9 +184,6 @@ public final class SessionManagementProtocol : NSObject {
             let thread = TSContactThread.getWithContactId(hexEncodedPublicKey, transaction: transaction), // TODO: Should this be getOrCreate?
             thread.isContactFriend {
             receiving_startSessionReset(in: thread, using: transaction)
-            // Notify our other devices that we've started a session reset
-            let syncManager = SSKEnvironment.shared.syncManager
-            syncManager.syncContact(hexEncodedPublicKey, transaction: transaction)
         }
     }
 

SignalServiceKit/src/Loki/Protocol/Sync Messages/SyncMessagesProtocol.swift

@@ -155,9 +155,9 @@ public final class SyncMessagesProtocol : NSObject {
     public static func handleContactSyncMessageIfNeeded(_ syncMessage: SSKProtoSyncMessage, wrappedIn envelope: SSKProtoEnvelope, using transaction: YapDatabaseReadWriteTransaction) {
         // The envelope source is set during UD decryption
         let hexEncodedPublicKey = envelope.source!
-        guard let masterHexEncodedPublicKey = storage.getMasterHexEncodedPublicKey(for: getUserHexEncodedPublicKey(), in: transaction) else { return }
-        let wasSentByMasterDevice = (masterHexEncodedPublicKey == hexEncodedPublicKey)
-        guard wasSentByMasterDevice, let contacts = syncMessage.contacts, let contactsAsData = contacts.data, contactsAsData.count > 0 else { return }
+        let linkedDevices = LokiDatabaseUtilities.getLinkedDeviceHexEncodedPublicKeys(for: hexEncodedPublicKey, in: transaction)
+        let wasSentByLinkedDevice = linkedDevices.contains(hexEncodedPublicKey)
+        guard wasSentByLinkedDevice, let contacts = syncMessage.contacts, let contactsAsData = contacts.data, contactsAsData.count > 0 else { return }
         print("[Loki] Contact sync message received.")
         handleContactSyncMessageData(contactsAsData, using: transaction)
     }