add anonymous users support

src/Action/RegisterSubscriptionAction.php

@@ -3,9 +3,9 @@
 namespace BenTools\WebPushBundle\Action;
 
 use BenTools\WebPushBundle\Model\Subscription\UserSubscriptionManagerRegistry;
+use BenTools\WebPushBundle\Model\User\AnonymousUser;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
 use Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException;
 use Symfony\Component\Security\Core\User\UserInterface;
@@ -55,17 +55,14 @@ private function unsubscribe(UserInterface $user, string $subscriptionHash)
 
     public function __invoke(Request $request, UserInterface $user = null): Response
     {
-        if (null === $user) {
-            throw new AccessDeniedHttpException('Not authenticated.');
-        }
-
         if (!in_array($request->getMethod(), ['POST', 'DELETE'])) {
             throw new MethodNotAllowedHttpException(['POST', 'DELETE']);
         }
 
         $data = json_decode($request->getContent(), true);
         $subscription = $data['subscription'] ?? [];
         $options = $data['options'] ?? [];
+        $user = $user ?? new AnonymousUser();
 
         if (JSON_ERROR_NONE !== json_last_error()) {
             throw new BadRequestHttpException(json_last_error_msg());

src/Model/User/AnonymousUser.php

@@ -0,0 +1,34 @@
+<?php
+
+
+namespace BenTools\WebPushBundle\Model\User;
+
+use Symfony\Component\Security\Core\User\UserInterface;
+
+/**
+ * This class is used to support anonymous user subscription
+ *
+ * @internal
+ */
+class AnonymousUser implements UserInterface
+{
+    public function getRoles()
+    {
+    }
+
+    public function getPassword()
+    {
+    }
+
+    public function getSalt()
+    {
+    }
+
+    public function getUsername()
+    {
+    }
+
+    public function eraseCredentials()
+    {
+    }
+}