SSO: Implement keycloak login/registration - refs BT#21881

composer.json

@@ -117,6 +117,7 @@
         "sensio/framework-extra-bundle": "~6.1",
         "simpod/doctrine-utcdatetime": "^0.1.2",
         "sonata-project/exporter": "^2.2",
+        "stevenmaguire/oauth2-keycloak": "^5.1",
         "stof/doctrine-extensions-bundle": "^1.10",
         "sunra/php-simple-html-dom-parser": "~1.5",
         "symfony/apache-pack": "^1.0",

config/authentication.yaml

@@ -34,3 +34,15 @@ parameters:
                 client_secret: ''
                 graph_api_version: ''
                 redirect_params: { }
+
+            keycloak:
+                enabled: true
+                client_id: ''
+                client_secret: ''
+                auth_server_url: ''
+                realm: ''
+                version: ''
+                encryption_algorithm: null
+                encryption_key_path: null
+                encryption_key: null
+                redirect_params: { }

config/packages/knpu_oauth2_client.yaml

@@ -15,4 +15,13 @@ knpu_oauth2_client:
             graph_api_version:
             redirect_params: { }
 
+        keycloak:
+            type: keycloak
+            client_id: ''
+            client_secret: ''
+            redirect_route: chamilo.oauth2_keycloak_check
+            redirect_params: { }
+            auth_server_url: null
+            realm: null
+
         # configure your clients as described here: https://github.com/knpuniversity/oauth2-client-bundle#configuration

config/packages/security.yaml

@@ -117,6 +117,7 @@ security:
             custom_authenticators:
                 - Chamilo\CoreBundle\Security\Authenticator\OAuth2\GenericAuthenticator
                 - Chamilo\CoreBundle\Security\Authenticator\OAuth2\FacebookAuthenticator
+                - Chamilo\CoreBundle\Security\Authenticator\OAuth2\KeycloakAuthenticator
 
     access_control:
         - {path: ^/login, roles: PUBLIC_ACCESS}

src/CoreBundle/Controller/OAuth2/KeycloakProviderController.php

@@ -0,0 +1,26 @@
+<?php
+
+/* For licensing terms, see /license.txt */
+
+declare(strict_types=1);
+
+namespace Chamilo\CoreBundle\Controller\OAuth2;
+
+use Chamilo\CoreBundle\ServiceHelper\AuthenticationConfigHelper;
+use KnpU\OAuth2ClientBundle\Client\ClientRegistry;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+
+class KeycloakProviderController extends AbstractProviderController
+{
+    #[Route('/connect/keycloak', name: 'chamilo.oauth2_keycloak_start')]
+    public function connect(
+        ClientRegistry $clientRegistry,
+        AuthenticationConfigHelper $authenticationConfigHelper,
+    ): Response {
+        return $this->getStartResponse('keycloak', $clientRegistry, $authenticationConfigHelper);
+    }
+
+    #[Route('/connect/keycloak/check', name: 'chamilo.oauth2_keycloak_check')]
+    public function connectCheck(): void {}
+}

src/CoreBundle/Security/Authenticator/OAuth2/KeycloakAuthenticator.php

@@ -0,0 +1,57 @@
+<?php
+
+/* For licensing terms, see /license.txt */
+
+declare(strict_types=1);
+
+namespace Chamilo\CoreBundle\Security\Authenticator\OAuth2;
+
+use Chamilo\CoreBundle\Entity\User;
+use KnpU\OAuth2ClientBundle\Client\OAuth2ClientInterface;
+use League\OAuth2\Client\Token\AccessToken;
+use Stevenmaguire\OAuth2\Client\Provider\KeycloakResourceOwner;
+use Symfony\Component\HttpFoundation\Request;
+
+class KeycloakAuthenticator extends AbstractAuthenticator
+{
+    protected string $providerName = 'keycloak';
+
+    public function supports(Request $request): ?bool
+    {
+        return 'chamilo.oauth2_keycloak_check' === $request->attributes->get('_route');
+    }
+
+    protected function userLoader(AccessToken $accessToken): User
+    {
+        /** @var KeycloakResourceOwner $resourceOwner */
+        $resourceOwner = $this->client->fetchUserFromToken($accessToken);
+
+        $user = $this->userRepository->findOneBy(['username' => $resourceOwner->getUsername()])
+            ?:
+            $this->userRepository->findOneBy(['email' => $resourceOwner->getEmail()]);
+
+        if (!$user) {
+            $user = (new User())
+                ->setCreatorId($this->userRepository->getRootUser()->getId())
+            ;
+        }
+
+        $username = $user->getUsername() ?: $user->getEmail();
+
+        $user
+            ->setFirstname($resourceOwner->getFirstName())
+            ->setLastname($resourceOwner->getLastName())
+            ->setEmail($resourceOwner->getEmail())
+            ->setUsername($username)
+            ->setPlainPassword('keycloak')
+            ->setStatus(STUDENT)
+            ->setAuthSource('keycloak')
+            ->setRoleFromStatus(STUDENT)
+        ;
+
+        $this->userRepository->updateUser($user);
+        // updateAccessUrls ?
+
+        return $user;
+    }
+}