Issue #3101048 by neel24, agrochal: Fix coding standards

social_auth_pbs.services.yml

@@ -4,6 +4,7 @@ services:
     arguments:
       - '@config.factory'
       - '@logger.factory'
+      - '@request_stack'
 
   # Logger.
 

src/PbsAuthManager.php

@@ -6,6 +6,7 @@
 use Drupal\Core\Logger\LoggerChannelFactoryInterface;
 use Drupal\social_auth\AuthManager\OAuth2Manager;
 use League\OAuth2\Client\Provider\Exception\IdentityProviderException;
+use Symfony\Component\HttpFoundation\RequestStack;
 
 /**
  * Contains all the logic for PBS login integration.
@@ -19,13 +20,16 @@ class PbsAuthManager extends OAuth2Manager {
    *   Used for accessing configuration object factory.
    * @param \Drupal\Core\Logger\LoggerChannelFactoryInterface $logger_factory
    *   The logger factory.
+   * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
+   *   Used to get the authorization code from the callback request.
    */
   public function __construct(ConfigFactory $configFactory,
-                              LoggerChannelFactoryInterface $logger_factory) {
-    parent::__construct(
-      $configFactory->get('social_auth_pbs.settings'),
-      $logger_factory
-    );
+                              LoggerChannelFactoryInterface $logger_factory,
+                              RequestStack $request_stack) {
+
+    parent::__construct($configFactory->get('social_auth_pbs.settings'),
+                        $logger_factory,
+                        $this->request = $request_stack->getCurrentRequest());
   }
 
   /**
@@ -34,7 +38,7 @@ public function __construct(ConfigFactory $configFactory,
   public function authenticate() {
     try {
       $this->setAccessToken($this->client->getAccessToken('authorization_code',
-        ['code' => $_GET['code']]));
+        ['code' => $this->request->query->get('code')]));
     }
     catch (IdentityProviderException $e) {
       $this->loggerFactory->get('social_auth_pbs')