Merge branch 'prevent_authored_awardable_votes' into 'master'

prevent authored awardable thumbs  votes

## What does this MR do?
This MR should prevent users from upvoting or downvoting   issues/merge requests/notes authored by them. 

## What are the relevant issue numbers?
Closes #20913 

See merge request !5841

1 files changed, 5 insertions, 1 deletions

diff --git a/lib/api/award_emoji.rb b/lib/api/award_emoji.rb
index 2efe7e3adf3..7c22b17e4e5 100644
--- a/lib/api/award_emoji.rb
+++ b/lib/api/award_emoji.rb
@@ -54,7 +54,7 @@ module API
           post endpoint do
             required_attributes! [:name]
 
-            not_found!('Award Emoji') unless can_read_awardable?
+            not_found!('Award Emoji') unless can_read_awardable? && can_award_awardable?
 
             award = awardable.create_award_emoji(params[:name], current_user)
 
@@ -92,6 +92,10 @@ module API
         can?(current_user, ability, awardable)
       end
 
+      def can_award_awardable?
+        awardable.user_can_award?(current_user, params[:name])
+      end
+
       def awardable
         @awardable ||=
           begin