Add security manager and log-in form

config/packages/security.yaml

@@ -2,10 +2,7 @@ security:
     encoders:
         App\Entity\User:
             algorithm: auto
-
-    # https://symfony.com/doc/current/security.html#where-do-users-come-from-user-providers
     providers:
-        # used to reload user from session & other features (e.g. switch_user)
         app_user_provider:
             entity:
                 class: App\Entity\User
@@ -16,15 +13,16 @@ security:
             security: false
         main:
             anonymous: lazy
-
+            remember_me:
-            # activate different ways to authenticate
+                secret: '%kernel.secret%'
-            # https://symfony.com/doc/current/security.html#firewalls-authentication
+                lifetime: 604800            # 1 week
-
+                path: /
-            # https://symfony.com/doc/current/security/impersonating_user.html
+                secure: true
-            # switch_user: true
+            guard:
-
+                authenticators:
-    # Easy way to control access for large sections of your site
+                    - App\Security\LoginFormAuthentificatorAuthenticator
-    # Note: Only the *first* access control that matches will be used
+            logout:
+                path: app_security_logout
+                target: app_external_index
     access_control:
-        # - { path: ^/admin, roles: ROLE_ADMIN }
+        - { path: ^/login$, roles: IS_AUTHENTICATED_ANONYMOUSLY }
-        # - { path: ^/profile, roles: ROLE_USER }

src/Controller/ExternalController.php

@@ -8,9 +8,8 @@ use Symfony\Component\Routing\Annotation\Route;
 class ExternalController extends AbstractController {
     /**
      * @Route("/")
-     * @Route("/index")
      */
     public function index () {
-        return $this->render('index.html.twig');
+        return $this->render('external/index.html.twig');
     }
 }

src/Controller/SecurityController.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Controller;
+
+use Exception;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Annotation\Route;
+use Symfony\Component\Security\Http\Authentication\AuthenticationUtils;
+
+/**
+ * Controller about security (login / logout)
+ *
+ * @package App\Controller
+ */
+class SecurityController extends AbstractController {
+    /**
+     * Show login form
+     *
+     * @param AuthenticationUtils $authenticationUtils
+     *
+     * @return Response Page response
+     *
+     * @Route("/login")
+     */
+    public function login (AuthenticationUtils $authenticationUtils): Response {
+        $error = $authenticationUtils->getLastAuthenticationError();
+        $lastUsername = $authenticationUtils->getLastUsername();
+
+        return $this->render('security/login.html.twig', [
+            'last_username' => $lastUsername,
+            'error'         => $error,
+        ]
+        );
+    }
+
+    /**
+     * *Perform* logout
+     *
+     * @throws Exception When firewall failed and this method is *really* called
+     *
+     * @Route("/logout")
+     */
+    public function logout () {
+        throw new Exception('This method can be blank - it will be intercepted by the logout key on your firewall');
+    }
+}

src/Security/LoginFormAuthentificatorAuthenticator.php

@@ -0,0 +1,99 @@
+<?php
+
+namespace App\Security;
+
+use App\Entity\User;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+use Symfony\Component\Security\Core\Encoder\UserPasswordEncoderInterface;
+use Symfony\Component\Security\Core\Exception\CustomUserMessageAuthenticationException;
+use Symfony\Component\Security\Core\Exception\InvalidCsrfTokenException;
+use Symfony\Component\Security\Core\Security;
+use Symfony\Component\Security\Core\User\UserInterface;
+use Symfony\Component\Security\Core\User\UserProviderInterface;
+use Symfony\Component\Security\Csrf\CsrfToken;
+use Symfony\Component\Security\Csrf\CsrfTokenManagerInterface;
+use Symfony\Component\Security\Guard\Authenticator\AbstractFormLoginAuthenticator;
+use Symfony\Component\Security\Guard\PasswordAuthenticatedInterface;
+use Symfony\Component\Security\Http\Util\TargetPathTrait;
+
+class LoginFormAuthentificatorAuthenticator extends AbstractFormLoginAuthenticator implements PasswordAuthenticatedInterface {
+    use TargetPathTrait;
+
+    private $entityManager;
+    private $urlGenerator;
+    private $csrfTokenManager;
+    private $passwordEncoder;
+
+    public function __construct (
+        EntityManagerInterface $entityManager,
+        UrlGeneratorInterface $urlGenerator,
+        CsrfTokenManagerInterface $csrfTokenManager,
+        UserPasswordEncoderInterface $passwordEncoder
+    ) {
+        $this->entityManager = $entityManager;
+        $this->urlGenerator = $urlGenerator;
+        $this->csrfTokenManager = $csrfTokenManager;
+        $this->passwordEncoder = $passwordEncoder;
+    }
+
+    public function supports (Request $request) {
+        return 'app_security_login' === $request->attributes->get('_route') && $request->isMethod('POST');
+    }
+
+    public function getCredentials (Request $request) {
+        $credentials = [
+            'email'      => $request->request->get('email'),
+            'password'   => $request->request->get('password'),
+            'csrf_token' => $request->request->get('_csrf_token'),
+        ];
+        $request->getSession()->set(
+            Security::LAST_USERNAME,
+            $credentials['email']
+        );
+
+        return $credentials;
+    }
+
+    public function getUser ($credentials, UserProviderInterface $userProvider) {
+        $token = new CsrfToken('authenticate', $credentials['csrf_token']);
+        if (!$this->csrfTokenManager->isTokenValid($token)) {
+            throw new InvalidCsrfTokenException();
+        }
+
+        $user = $this->entityManager->getRepository(User::class)->findOneBy(['email' => $credentials['email']]);
+
+        if (!$user) {
+            // fail authentication with a custom error
+            throw new CustomUserMessageAuthenticationException('Email could not be found.');
+        }
+
+        return $user;
+    }
+
+    public function checkCredentials ($credentials, UserInterface $user) {
+        return $this->passwordEncoder->isPasswordValid($user, $credentials['password']);
+    }
+
+    /**
+     * Used to upgrade (rehash) the user's password automatically over time.
+     */
+    public function getPassword ($credentials): ?string {
+        return $credentials['password'];
+    }
+
+    public function onAuthenticationSuccess (Request $request, TokenInterface $token, $providerKey) {
+        if ($targetPath = $this->getTargetPath($request->getSession(), $providerKey)) {
+            return new RedirectResponse($targetPath);
+        }
+
+        return new RedirectResponse($this->urlGenerator->generate('app_external_index'));
+    }
+
+    protected function getLoginUrl () {
+        return $this->urlGenerator->generate('app_security_login');
+    }
+}

templates/base.html.twig

@@ -2,7 +2,7 @@
 <html lang="fr">
 <head>
     <meta charset="UTF-8">
-    <title>{% block title %}WishList{% endblock %}</title>
+    <title>WishList - {% block title %}{% endblock %}</title>
     {% block stylesheets %}{% endblock %}
 </head>
 <body>

templates/external/index.html.twig

@@ -1,5 +1,7 @@
 {% extends 'base.html.twig' %}
 
+{% block title %}{% trans %}Accueil{% endtrans %}{% endblock %}
+
 {% block body %}
     <h1>{% trans %}Accueil{% endtrans %}</h1>
     <p>

templates/security/login.html.twig

@@ -0,0 +1,35 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}Log in{% endblock %}
+
+{% block body %}
+    <form method="post">
+        {% if error %}
+            <div class="alert alert-danger">{{ error.messageKey|trans(error.messageData, 'security') }}</div>
+        {% endif %}
+
+        {% if app.user %}
+            <div class="mb-3">
+                You are logged in as {{ app.user.username }}, <a href="{{ path('app_security_logout') }}">Logout</a>
+            </div>
+        {% endif %}
+
+        <h1 class="h3 mb-3 font-weight-normal">Please sign in</h1>
+
+        <label for="inputEmail">Email</label>
+        <input type="email" value="{{ last_username }}" name="email" id="inputEmail" class="form-control" required autofocus>
+
+        <label for="inputPassword">Password</label>
+        <input type="password" name="password" id="inputPassword" class="form-control" required>
+
+        <input type="hidden" name="_csrf_token" value="{{ csrf_token('authenticate') }}">
+
+        <div class="checkbox mb-3">
+            <label>
+                <input type="checkbox" name="_remember_me"> Remember me
+            </label>
+        </div>
+
+        <button class="btn btn-lg btn-primary" type="submit">Sign in</button>
+    </form>
+{% endblock %}