Subscriber not called in symfony 5.3 - php

Question

Hi I'm starting to learn the symfony event system and to test it I created a "subscriber" that listens to the AuthenticationEvents::AUTHENTICATION_FAILURE event and dumps it.
I then tried to connect with fake data, but nothing happens.
I then tried to listen to another event KernelEvents::REQUEST and it works, so I don't see where the problem can come from.
MY SUBSCRIBER :
namespace App\EventSubscriber;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\RequestEvent;
use Symfony\Component\Security\Core\AuthenticationEvents;
use Symfony\Component\Security\Http\Event\LoginFailureEvent;
use Symfony\Component\Security\Http\Event\LoginSuccessEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
class AuthenticationSubscriber implements EventSubscriberInterface
{
public static function getSubscribedEvents()
{
return [
AuthenticationEvents::AUTHENTICATION_SUCCESS => 'securityauthenticationsuccess',
AuthenticationEvents::AUTHENTICATION_FAILURE => 'securityauthenticationfailure',
KernelEvents::REQUEST => 'KernelRequest',
];
}
public function securityauthenticationfailure(LoginFailureEvent $event){
dump($event);
}
public function securityauthenticationsuccess(LoginSuccessEvent $event){
dump($event);
}
public function KernelRequest(RequestEvent $event){
dump($event);
}
}```
MY SERVICE.YAML :
```# This file is the entry point to configure your own services.
# Files in the packages/ subdirectory configure your dependencies.
# Put parameters here that don't need to change on each machine where the app is deployed
# https://symfony.com/doc/current/best_practices.html#use-parameters-for-application-configuration
parameters:
services:
# default configuration for services in *this* file
_defaults:
autowire: true # Automatically injects dependencies in your services.
autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.
# makes classes in src/ available to be used as services
# this creates a service per class whose id is the fully-qualified class name
App\:
resource: '../src/'
exclude:
- '../src/DependencyInjection/'
- '../src/Entity/'
- '../src/Kernel.php'
- '../src/Tests/'
# add more service definitions when explicit configuration is needed
# please note that last definitions always *replace* previous ones

Answer 1

The Core\AuthenticationEvents class is part of the older authentication system. For the new HTTP based system, the event class name is used for the event name. So:
public static function getSubscribedEvents(): array
{
return [
LoginSuccessEvent::class => 'onLoginSuccess',
LoginFailureEvent::class => 'onLoginFailure',
];
}
Should get you one step further.
It might also be instructive to look at some of the listener classes under vendor\symfony\security-http\Authenticator\EventListener
By the way, I tested this code using an make:auth generated authenticator that extends AbstractLoginFormAuthenticator. All out of the box stuff. Works as expected.