feat(altcha): add altcha validation layer to login

src/Flag/Controller/FlagController.php

@@ -2,9 +2,11 @@
 
 namespace App\Flag\Controller;
 
+use App\Flag\FlagAccessor;
 use App\Flag\FlagEnum;
 use Predis\ClientInterface;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Exception\JsonException;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -17,12 +19,13 @@ class FlagController extends AbstractController
     {
         try {
             FlagEnum::from($flagName);
+            $flagValue = \json_decode($request->getContent(), true, flags: JSON_THROW_ON_ERROR)[FlagAccessor::FLAG_VALUE];
         } catch (\ValueError $e) {
             throw new \InvalidArgumentException('invalid flag name provided');
+        } catch (JsonException $e) {
+            throw new \InvalidArgumentException('invalid json format');
         }
 
-        $flagValue = $request->query->getBoolean('flagValue');
-
         $redis->set($flagName, $flagValue);
 
         return new JsonResponse(

src/Flag/FlagAccessor.php

@@ -6,6 +6,8 @@ use Predis\ClientInterface;
 
 class FlagAccessor
 {
+    public const FLAG_VALUE = 'flagValue';
+
     public function __construct(
         private readonly ClientInterface $redis
     ) {