Symfony - Guard authentification - symfony

Question

I am implementing a login system with guard in my symfony application.
I already setup the system, but i did one mistake, therefore i cant login...
The essentials:
My User Entity implements "AdvancedUserInterface, \Serializable" and it provides email property instead of username property..moreover i changed "getUsername"-function to:
public function getUsername()
{
return $this->email;
}
security.yml:
# app/config/security.yml
security:
providers:
main_db_provider:
entity:
class: AppBundle:User
property: email
encoders:
AppBundle\Entity\User:
algorithm: bcrypt
firewalls:
dev:
pattern: ^/(_(profiler|wdt)|css|images|js)/
security: false
main:
anonymous: ~
logout:
path: /logout
target: /
guard:
authenticators:
- form_authenticator
provider: main_db_provider
access_control:
- { path: ^/login, roles: IS_AUTHENTICATED_ANONYMOUSLY }
- { path: ^/, roles: ROLE_ADMIN }
services.yml:
services:
form_authenticator:
class: AppBundle\Security\FormAuthenticator
arguments: ["#service_container"]
login.html.twig:
<form action="{{ path('login') }}" method="POST">
<input type="text" name="email">
<input type="text" name="password">
<input type="submit" name="submit" value="Submit">
</form>
LoginController(part of it):
/**
* #Route("/login", name="login")
*/
public function loginAction(Request $request) {
$authenticationUtils = $this->get('security.authentication_utils');
$error = $authenticationUtils->getLastAuthenticationError();
$lastUsername = $authenticationUtils->getLastUsername();
return $this->render(
'AppBundle:login:index.html.twig',
[
'error' => $error ? $error->getMessage() : NULL,
'last_username' => $lastUsername
]
);
}
And last my FormAuthentificator:
class FormAuthenticator extends AbstractGuardAuthenticator
{
private $container;
/**
* Default message for authentication failure.
*
* #var string
*/
private $failMessage = 'Invalid credentials';
/**
* Creates a new instance of FormAuthenticator
*/
public function __construct(ContainerInterface $container)
{
$this->container = $container;
}
/**
* {#inheritdoc}
*/
public function getCredentials(Request $request)
{
if ($request->getPathInfo() != '/login' || !$request->isMethod('POST')) {
return;
}
return array(
'email' => $request->request->get('email'),
'password' => $request->request->get('password'),
);
}
/**
* {#inheritdoc}
*/
public function getUser($credentials, UserProviderInterface $userProvider)
{
$email = $credentials['email'];
return $userProvider->loadUserByUsername($email);
}
/**
* {#inheritdoc}
*/
public function checkCredentials($credentials, UserInterface $user)
{
$plainPassword = $credentials['password'];
$encoder = $this->container->get('security.password_encoder');
if (!$encoder->isPasswordValid($user, $plainPassword)) {
throw new CustomUserMessageAuthenticationException($this->failMessage);
}
return true;
}
/**
* {#inheritdoc}
*/
public function onAuthenticationSuccess(Request $request, TokenInterface $token, $providerKey)
{
$url = $this->container->get('router')->generate('backend');
return new RedirectResponse($url);
}
/**
* {#inheritdoc}
*/
public function onAuthenticationFailure(Request $request, AuthenticationException $exception)
{
$request->getSession()->set(Security::AUTHENTICATION_ERROR, $exception);
$url = $this->container->get('router')->generate('login');
return new RedirectResponse($url);
}
/**
* {#inheritdoc}
*/
public function start(Request $request, AuthenticationException $authException = null)
{
$url = $this->container->get('router')->generate('login');
return new RedirectResponse($url);
}
/**
* {#inheritdoc}
*/
public function supportsRememberMe()
{
return false;
}
}
When i enter my valid credentials, i get:
Invalid credentials:
I also tried with other credentials, but always same error.
Anybody could help me to solve this issue?
Thanks and Greetings!