SonataAdmin without SonataUserBundle

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Here we will explain how you can use SonataAdmin with Symfony Guard instead of using SonataUserBundle.

Code used in this short guide can be found here with support for different Symfony versions.

The recipe

Things we will need to setup:

User Entity

This represents your security user, you can read more about it here:

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namespace App\Entity;

use Doctrine\DBAL\Types\Types;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Security\Core\User\UserInterface;

#[ORM\Entity]
class User implements UserInterface
{
    #[ORM\Id]
    #[ORM\Column(type: Types::INTEGER)]
    #[ORM\GeneratedValue]
    private ?int $id = null;

    #[ORM\Column(type: Types::STRING, unique: true)]
    private ?string $email = null;

    #[ORM\Column(type: Types::STRING, nullable: true)]
    private ?string $password = null;

    #[ORM\Column(type: Types::ARRAY)]
    private array $roles = [];
}

UserProvider

This represents your user provider, it will be used to load your security users, read more about it here:

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namespace App\Security;

use App\Entity\User;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;

final class UserProvider implements UserProviderInterface
{
    private EntityManagerInterface $entityManager;

    public function __construct(EntityManagerInterface $entityManager)
    {
        $this->entityManager = $entityManager;
    }

    public function loadUserByUsername($email): User
    {
        $user = $this->findOneUserBy(['email' => $email]);

        if (!$user) {
            throw new UsernameNotFoundException(
                sprintf(
                    'User with "%s" email does not exist.',
                    $email
                )
            );
        }

        return $user;
    }

    private function findOneUserBy(array $options): ?User
    {
        return $this->entityManager
            ->getRepository(User::class)
            ->findOneBy($options);
    }

    public function refreshUser(UserInterface $user): User
    {
        assert($user instanceof User);

        if (null === $reloadedUser = $this->findOneUserBy(['id' => $user->getId()])) {
            throw new UsernameNotFoundException(sprintf(
                'User with ID "%s" could not be reloaded.',
                $user->getId()
            ));
        }

        return $reloadedUser;
    }

    public function supportsClass($class): bool
    {
        return $class === User::class;
    }
}

AdminLoginForm

A small login form that will validate our data:

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namespace App\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\EmailType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\Extension\Core\Type\PasswordType;

final class AdminLoginForm extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $builder
            ->add('email', EmailType::class)
            ->add('password', PasswordType::class);
    }
}

AdminLoginAuthenticator

This represents your custom authentication system, read more about it here:

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namespace App\Security;

use App\Form\AdminLoginForm;
use App\Entity\User;
use Symfony\Component\Form\FormFactoryInterface;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\RouterInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Encoder\UserPasswordEncoderInterface;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\Security;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Guard\Authenticator\AbstractFormLoginAuthenticator;
use Symfony\Component\Security\Guard\AuthenticatorInterface;

final class AdminLoginAuthenticator extends AbstractFormLoginAuthenticator implements AuthenticatorInterface
{
    private FormFactoryInterface $formFactory;

    private RouterInterface $router;

    private UserPasswordEncoderInterface $passwordEncoder;

    public function __construct(
        FormFactoryInterface $formFactory,
        RouterInterface $router,
        UserPasswordEncoderInterface $passwordEncoder
    ) {
        $this->formFactory = $formFactory;
        $this->router = $router;
        $this->passwordEncoder = $passwordEncoder;
    }

    public function supports(Request $request): bool
    {
        return $request->attributes->get('_route') === 'admin_login' && $request->isMethod('POST');
    }

    public function getCredentials(Request $request): array
    {
        $form = $this->formFactory->create(AdminLoginForm::class);
        $form->handleRequest($request);

        $data = $form->getData();
        $request->getSession()->set(
            Security::LAST_USERNAME,
            $data['email']
        );

        return $data;
    }

    public function getUser($credentials, UserProviderInterface $userProvider): UserInterface
    {
        return $userProvider->loadUserByUsername($credentials['email']);
    }

    public function checkCredentials($credentials, UserInterface $user): bool
    {
        return $this->passwordEncoder->isPasswordValid($user, $credentials['password']);
    }

    public function onAuthenticationFailure(Request $request, AuthenticationException $exception): RedirectResponse
    {
        $request->getSession()->set(Security::AUTHENTICATION_ERROR, $exception);

        return new RedirectResponse($this->router->generate('admin_login'));
    }

    protected function getLoginUrl(): string
    {
        return $this->router->generate('admin_login');
    }

    public function onAuthenticationSuccess(Request $request, TokenInterface $token, $providerKey): RedirectResponse
    {
        return new RedirectResponse($this->router->generate('sonata_admin_dashboard'));
    }
}

AdminLoginController

A Controller, used to render login form. Logout is left empty intentionally because this will be handled by Symfony, but we still need to register that route:

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namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use App\Form\AdminLoginForm;
use Symfony\Component\Routing\Annotation\Route;
use Symfony\Component\Security\Http\Authentication\AuthenticationUtils;
use Symfony\Component\HttpFoundation\Response;

final class AdminLoginController extends AbstractController
{
    private AuthenticationUtils $authenticationUtils;

    public function __construct(AuthenticationUtils $authenticationUtils)
    {
        $this->authenticationUtils = $authenticationUtils;
    }

    #[Route('/admin/login', name: 'admin_login')]
    public function loginAction(): Response
    {
        $form = $this->createForm(AdminLoginForm::class, [
            'email' => $this->authenticationUtils->getLastUsername()
        ]);

        return $this->render('security/login.html.twig', [
            'last_username' => $this->authenticationUtils->getLastUsername(),
            'form' => $form->createView(),
            'error' => $this->authenticationUtils->getLastAuthenticationError(),
        ]);
    }

    #[Route('/admin/logout', name: 'admin_logout')]
    public function logoutAction(): void
    {
        // Left empty intentionally because this will be handled by Symfony.
    }
}

Setup firewall in security.yaml

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# config/packages/security.yaml

security:
    role_hierarchy:
        ROLE_ADMIN:       [ROLE_USER, ROLE_SONATA_ADMIN]
        ROLE_SUPER_ADMIN: [ROLE_ADMIN, ROLE_ALLOWED_TO_SWITCH]
        SONATA:
            - ROLE_SONATA_PAGE_ADMIN_PAGE_EDIT

    encoders:
        App\Entity\User: auto # use bcrypt if you are using "symfony/security-bundle" < 4.3

    providers:
        users:
            id: App\Security\UserProvider

    firewalls:
        # Disabling the security for the web debug toolbar, the profiler and Assetic.
        dev:
            pattern:  ^/(_(profiler|wdt)|css|images|js)/
            security: false
        # -> custom firewall for the admin area of the URL
        admin:
            pattern:            /admin(.*)
            form_login:
                provider:       users
                login_path:     admin_login
                use_forward:    false
                check_path:     admin_login
                failure_path:   null
            logout:
                path:           admin_logout
                target:         admin_login
            anonymous:          true
            guard:
                authenticators:
                    - App\Security\AdminLoginAuthenticator
        main:
            anonymous: ~

access_control:
    - { path: ^/admin/login$, role: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/admin/logout$, role: IS_AUTHENTICATED_ANONYMOUSLY }
    - { path: ^/admin/, role: [ROLE_ADMIN, ROLE_SONATA_ADMIN] }
    - { path: ^/.*, role: IS_AUTHENTICATED_ANONYMOUSLY }

Login template resembling Sonata style

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{# templates/security/login.html.twig #}

{% extends '@SonataAdmin/standard_layout.html.twig' %}

{% block sonata_nav %}
{% endblock sonata_nav %}

{% block logo %}
{% endblock logo %}

{% block sonata_left_side %}
{% endblock sonata_left_side %}

{% block body_attributes %}class="sonata-bc login-page"{% endblock %}

{% block sonata_wrapper %}
    <div class="login-box">
        <div class="login-logo">
            <a href="{{ path('sonata_admin_dashboard') }}">
                <span>Login</span>
            </a>
        </div>
        <div class="login-box-body">
            {% block sonata_user_login_form %}
                {% block sonata_user_login_error %}
                    {% if error %}
                        <div class="alert alert-danger">
                            {{ error.messageKey|trans(error.messageData, 'security') }}
                        </div>
                    {% endif %}
                {% endblock %}
                {% for label, flashes in app.session.flashbag.all %}
                    {% for flash in flashes %}
                        <div class="alert alert-{{ label }}">
                            {{ flash }}
                        </div>
                    {% endfor %}
                {% endfor %}
                <p class="login-box-msg">{{ 'Authentication'|trans }}</p>
                <form action="{{ path("admin_login") }}" method="post" role="form">
                    {{ form_row(form._token) }}

                    <div class="form-group has-feedback">
                        <input type="text" class="form-control" id="username" name="{{ form.email.vars.full_name }}" value="{{ last_username }}" required="required" placeholder="Email"/>
                        <span class="glyphicon glyphicon-user form-control-feedback"></span>
                    </div>

                    <div class="form-group has-feedback">
                        <input type="password" class="form-control" id="password" name="{{ form.password.vars.full_name }}" required="required" placeholder="Password"/>
                        <span class="glyphicon glyphicon-lock form-control-feedback"></span>
                    </div>

                    <div class="row">
                        <div class="col-xs-4">
                            <button type="submit" class="btn btn-primary btn-block btn-flat">Login</button>
                        </div>
                    </div>
                </form>
            {% endblock %}
        </div>
    </div>
{% endblock sonata_wrapper %}

The login form will look like this:

Login Form
This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.
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