Allow an admin to delete a user status

lib/pleroma/web/common_api/common_api.ex

@@ -30,7 +30,7 @@ def follow(follower, followed) do
   def delete(activity_id, user) do
     with %Activity{data: %{"object" => %{"id" => object_id}}} <- Repo.get(Activity, activity_id),
          %Object{} = object <- Object.normalize(object_id),
-         true <- user.info.is_moderator || user.ap_id == object.data["actor"],
+         true <- User.superuser?(user) || user.ap_id == object.data["actor"],
          {:ok, _} <- unpin(activity_id, user),
          {:ok, delete} <- ActivityPub.delete(object) do
       {:ok, delete}

test/web/mastodon_api/mastodon_api_controller_test.exs

@@ -371,6 +371,30 @@ test "when you didn't create it", %{conn: conn} do
 
       assert Repo.get(Activity, activity.id) == activity
     end
+
+    test "when you're an admin or moderator", %{conn: conn} do
+      activity1 = insert(:note_activity)
+      activity2 = insert(:note_activity)
+      admin = insert(:user, info: %{is_admin: true})
+      moderator = insert(:user, info: %{is_moderator: true})
+
+      res_conn =
+        conn
+        |> assign(:user, admin)
+        |> delete("/api/v1/statuses/#{activity1.id}")
+
+      assert %{} = json_response(res_conn, 200)
+
+      res_conn =
+        conn
+        |> assign(:user, moderator)
+        |> delete("/api/v1/statuses/#{activity2.id}")
+
+      assert %{} = json_response(res_conn, 200)
+
+      refute Repo.get(Activity, activity1.id)
+      refute Repo.get(Activity, activity2.id)
+    end
   end
 
   describe "filters" do