[ENTITY][Actor] Add is_local, it's common to depend, and this makes it much faster, with a low space cost

plugins/ActivityPub/Util/Explorer.php

@@ -239,6 +239,7 @@ class Explorer
             'created'  => new DateTime($res['published'] ?? 'now'),
             'bio'      => isset($res['summary']) ? mb_substr(Security::sanitize($res['summary']), 0, 1000) : null,
             'homepage' => $res['url'] ?? $res['id'],
+            'is_local' => false,
             'modified' => new DateTime(),
         ];
 

plugins/ActivityPub/Util/Response/ActorResponse.php

@@ -5,6 +5,7 @@ declare(strict_types = 1);
 namespace Plugin\ActivityPub\Util\Response;
 
 use App\Entity\Actor;
+use App\Util\Exception\ClientException;
 use Exception;
 use Plugin\ActivityPub\Util\Model\EntityToType\GSActorToType;
 
@@ -17,7 +18,10 @@ abstract class ActorResponse
      */
     public static function handle(Actor $gsactor, int $status = 200): TypeResponse
     {
-        $gsactor->getLocalUser(); // This throws exception if not a local user, which is intended
-        return new TypeResponse(data: GSActorToType::translate($gsactor), status: $status);
+        if ($gsactor->getIsLocal()) {
+            return new TypeResponse(data: GSActorToType::translate($gsactor), status: $status);
+        } else {
+            throw new ClientException('This is a remote actor, you should request it to its source of authority instead.');
+        }
     }
 }