Prevent setting a null profile key during account restore.

app/src/main/java/org/thoughtcrime/securesms/database/RecipientDatabase.kt

@@ -1025,17 +1025,24 @@ open class RecipientDatabase(context: Context, databaseHelper: SignalDatabase) :
     val profileName = ProfileName.fromParts(update.new.givenName.orElse(null), update.new.familyName.orElse(null))
     val localKey = ProfileKeyUtil.profileKeyOptional(update.old.profileKey.orElse(null))
     val remoteKey = ProfileKeyUtil.profileKeyOptional(update.new.profileKey.orElse(null))
-    val profileKey = remoteKey.or(localKey).map { obj: ProfileKey -> obj.serialize() }.map { source: ByteArray? -> Base64.encodeBytes(source!!) }.orElse(null)
+    val profileKey: String? = remoteKey.or(localKey).map { obj: ProfileKey -> obj.serialize() }.map { source: ByteArray? -> Base64.encodeBytes(source!!) }.orElse(null)
     if (!remoteKey.isPresent) {
-      Log.w(TAG, "Got an empty profile key while applying an account record update!")
+      Log.w(TAG, "Got an empty profile key while applying an account record update! The parsed local key is ${if (localKey.isPresent) "present" else "not present"}. The raw local key is ${if (update.old.profileKey.isPresent) "present" else "not present"}. The resulting key is ${if (profileKey != null) "present" else "not present"}.")
     }
 
     val values = ContentValues().apply {
       put(PROFILE_GIVEN_NAME, profileName.givenName)
       put(PROFILE_FAMILY_NAME, profileName.familyName)
       put(PROFILE_JOINED_NAME, profileName.toString())
-      put(PROFILE_KEY, profileKey)
+
+      if (profileKey != null) {
+        put(PROFILE_KEY, profileKey)
+      } else {
+        Log.w(TAG, "Avoided attempt to apply null profile key in account record update!")
+      }
+
       put(STORAGE_SERVICE_ID, Base64.encodeBytes(update.new.id.raw))
+
       if (update.new.hasUnknownFields()) {
         put(STORAGE_PROTO, Base64.encodeBytes(Objects.requireNonNull(update.new.serializeUnknownFields())))
       } else {

app/src/main/java/org/thoughtcrime/securesms/storage/StorageSyncValidations.java

@@ -146,6 +146,10 @@ public final class StorageSyncValidations {
           throw new SelfAddedAsContactError();
         }
       }
+
+      if (insert.getAccount().isPresent() && !insert.getAccount().get().getProfileKey().isPresent()) {
+        Log.w(TAG, "Uploading a null profile key in our AccountRecord!");
+      }
     }
   }