Fix some nil errors (#3338)

* Fix nil input not handled well in AuthorExtractor concern

* Fix hard error in ProcessFeedService when replied-to status has been deleted

* Fix nil errors in ProcessInteractionService when favourited status
cannot be found

1 files changed, 6 insertions, 0 deletions

diff --git a/app/services/process_interaction_service.rb b/app/services/process_interaction_service.rb
index e9c01103d58..bd9afaf2eff 100644
--- a/app/services/process_interaction_service.rb
+++ b/app/services/process_interaction_service.rb
@@ -108,12 +108,18 @@ class ProcessInteractionService < BaseService
 
   def favourite!(xml, from_account)
     current_status = status(xml)
+
+    return if current_status.nil?
+
     favourite = current_status.favourites.where(account: from_account).first_or_create!(account: from_account)
     NotifyService.new.call(current_status.account, favourite)
   end
 
   def unfavourite!(xml, from_account)
     current_status = status(xml)
+
+    return if current_status.nil?
+
     favourite = current_status.favourites.where(account: from_account).first
     favourite&.destroy
   end