1 files changed, 6 insertions, 0 deletions
diff --git a/app/lib/activitypub/activity.rb b/app/lib/activitypub/activity.rb
index 999954cb5..0a729011f 100644
--- a/app/lib/activitypub/activity.rb
+++ b/app/lib/activitypub/activity.rb
@@ -129,4 +129,10 @@ class ActivityPub::Activity
       ::FetchRemoteStatusService.new.call(@object['url'])
     end
   end
+
+  def lock_or_return(key, expire_after = 7.days.seconds)
+    yield if redis.set(key, true, nx: true, ex: expire_after)
+  ensure
+    redis.del(key)
+  end
 end