Symfony On Login Failure Listener

Today I'm going to explain how to create an event listener to record every login failure attempt.

To start, in your TestBundle, inside EventListener folder add a new class called OnLoginFailListener.

It will have the following appearance

<?php

namespace PedroResende\TestBundle\EventListener;

use Symfony\Component\Routing\RouterInterface;
use Symfony\Component\HttpFoundation\Session\Session;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Security\Http\Authentication\AuthenticationFailureHandlerInterface;
use Symfony\Component\Security\Core\SecurityContextInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;

/**
 * Description of OnLoginFailListener
 *
 * @author Pedro Resende <pedroresende@mail.resende.biz>
 */
class OnLoginFailListener implements AuthenticationFailureHandlerInterface
{

    private $router;
    private $session;
    private $container;

    /**
     * Constructor
     */
    public function __construct(RouterInterface $router, Session $session, $container)
    {
        $this->router = $router;
        $this->session = $session;
        $this->container = $container;
    }

    public function onAuthenticationFailure(Request $request, AuthenticationException $exception)
    {
        // Whatever you would like to do ;)
        $request->getSession()->set(SecurityContextInterface::AUTHENTICATION_ERROR, $exception);
        return new RedirectResponse($this->router->generate('login'));
    }

}

on your Resources/config/service.yml file add

parameters:
    onloginfaillistener.class: PedroResende\TestBundle\EventListener\OnLoginFailListener
services:
    kernel.listener.authentication_failure_event_listener:
        class: %onloginfaillistener.class%
        arguments: [@router, @session, @service_container]

And that is it ;)