Change: #375 投稿を編集して拡張ドメインブロックの条件にひっかかる状態になった場合、対象サーバーには投稿削除のActivityを送信する (#495)

* Change: #375 投稿を編集して拡張ドメインブロックの条件にひっかかる状態になった場合、対象サーバーには投稿削除のActivityを送信する

* Fix test

* Add test

app/workers/activitypub/status_update_distribution_worker.rb

@@ -12,6 +12,7 @@ class ActivityPub::StatusUpdateDistributionWorker < ActivityPub::DistributionWor
       distribute_limited!
     else
       distribute!
+      distribute_delete_activity!
     end
   rescue ActiveRecord::RecordNotFound
     true
@@ -19,6 +20,17 @@ class ActivityPub::StatusUpdateDistributionWorker < ActivityPub::DistributionWor
 
   protected
 
+  def inboxes
+    return super if @status.limited_visibility?
+    return super unless sensitive?
+
+    super - inboxes_diff_for_sending_domain_block
+  end
+
+  def inboxes_diff_for_sending_domain_block
+    status_reach_finder.inboxes_diff_for_sending_domain_block
+  end
+
   def inboxes_for_limited
     @inboxes_for_limited ||= @status.mentioned_accounts.inboxes
   end
@@ -47,7 +59,30 @@ class ActivityPub::StatusUpdateDistributionWorker < ActivityPub::DistributionWor
     build_activity(for_friend: true)
   end
 
+  def delete_activity
+    @delete_activity ||= Oj.dump(serialize_payload(@status, ActivityPub::DeleteSerializer, signer: @account))
+  end
+
+  def distribute_delete_activity!
+    return unless sensitive_changed?
+
+    target_inboxes = inboxes_diff_for_sending_domain_block
+    return if target_inboxes.empty?
+
+    ActivityPub::DeliveryWorker.push_bulk(target_inboxes, limit: 1_000) do |inbox_url|
+      [delete_activity, @account.id, inbox_url, {}]
+    end
+  end
+
   def always_sign
     @status.limited_visibility?
   end
+
+  def sensitive?
+    @options[:sensitive]
+  end
+
+  def sensitive_changed?
+    @options[:sensitive_changed]
+  end
 end