DDST-213 : switch user to anonymous/configured role in DGI Image discovery

dgi_image_discovery.module

@@ -5,10 +5,9 @@
  * General hook implementations.
  */
 
-use Drupal\dgi_image_discovery\DIDImageItemList;
-
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Field\BaseFieldDefinition;
+use Drupal\dgi_image_discovery\DIDImageItemList;
 
 /**
  * Implements hook_entity_base_field_info().

src/DIDImageItemList.php

@@ -2,8 +2,8 @@
 
 namespace Drupal\dgi_image_discovery;
 
-use Drupal\Core\TypedData\ComputedItemListTrait;
 use Drupal\Core\Field\EntityReferenceFieldItemList;
+use Drupal\Core\TypedData\ComputedItemListTrait;
 
 /**
  * Boiler-plate for our computed field.

src/EventSubscriber/DiscoverChildThumbnailSubscriber.php

@@ -2,13 +2,12 @@
 
 namespace Drupal\dgi_image_discovery\EventSubscriber;
 
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
 use Drupal\dgi_image_discovery\ImageDiscoveryEvent;
 use Drupal\dgi_image_discovery\ImageDiscoveryInterface;
 use Drupal\node\NodeInterface;
 
-use Drupal\Core\Entity\EntityStorageInterface;
-use Drupal\Core\Entity\EntityTypeManagerInterface;
-
 /**
  * Discovery child thumbnails.
  */

src/EventSubscriber/DiscoverOwnedThumbnailSubscriber.php

@@ -2,11 +2,10 @@
 
 namespace Drupal\dgi_image_discovery\EventSubscriber;
 
-use Drupal\dgi_image_discovery\ImageDiscoveryEvent;
-use Drupal\node\NodeInterface;
-
 use Drupal\Core\Entity\EntityStorageInterface;
 use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\dgi_image_discovery\ImageDiscoveryEvent;
+use Drupal\node\NodeInterface;
 
 /**
  * Discover thumbnails which are owned by a given object.

src/EventSubscriber/ViewsFieldSubscriber.php

@@ -2,9 +2,8 @@
 
 namespace Drupal\dgi_image_discovery\EventSubscriber;
 
-use Drupal\search_api\Event\SearchApiEvents;
 use Drupal\search_api\Event\MappingViewsFieldHandlersEvent;
-
+use Drupal\search_api\Event\SearchApiEvents;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 /**

src/ImageDiscoveryEvent.php

@@ -2,12 +2,10 @@
 
 namespace Drupal\dgi_image_discovery;
 
-use Drupal\media\MediaInterface;
-
 use Drupal\Core\Cache\RefinableCacheableDependencyInterface;
 use Drupal\Core\Cache\RefinableCacheableDependencyTrait;
 use Drupal\Core\Entity\ContentEntityInterface;
-
+use Drupal\media\MediaInterface;
 use Symfony\Contracts\EventDispatcher\Event;
 
 /**

src/Plugin/Field/FieldType/DIDImageItem.php

@@ -2,13 +2,12 @@
 
 namespace Drupal\dgi_image_discovery\Plugin\Field\FieldType;
 
-use Drupal\dgi_image_discovery\ImageDiscoveryInterface;
-
 use Drupal\Core\Cache\RefinableCacheableDependencyInterface;
 use Drupal\Core\Cache\RefinableCacheableDependencyTrait;
 use Drupal\Core\Field\Plugin\Field\FieldType\EntityReferenceItem;
 use Drupal\Core\TypedData\DataDefinitionInterface;
 use Drupal\Core\TypedData\TypedDataInterface;
+use Drupal\dgi_image_discovery\ImageDiscoveryInterface;
 
 /**
  * Find image media related to the given node.

src/Plugin/search_api/processor/DgiImageDiscovery.php

@@ -4,6 +4,8 @@
 
 use Drupal\Core\Entity\EntityTypeManagerInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\Core\Session\AccountSwitcherInterface;
+use Drupal\Core\Session\AnonymousUserSession;
 use Drupal\dgi_image_discovery\ImageDiscoveryInterface;
 use Drupal\dgi_image_discovery\Plugin\search_api\processor\Property\DgiImageDiscoveryProperty;
 use Drupal\node\NodeInterface;
@@ -42,6 +44,13 @@ class DgiImageDiscovery extends ProcessorPluginBase implements ContainerFactoryP
    */
   protected $imageDiscovery;
 
+  /**
+   * The account switcher service.
+   *
+   * @var \Drupal\Core\Session\AccountSwitcherInterface
+   */
+  protected $accountSwitcher;
+
   /**
    * {@inheritdoc}
    */
@@ -50,12 +59,14 @@ public function __construct(
     $plugin_id,
     $plugin_definition,
     ImageDiscoveryInterface $image_discovery,
-    EntityTypeManagerInterface $entity_type_manager
+    EntityTypeManagerInterface $entity_type_manager,
+    AccountSwitcherInterface $account_switcher
   ) {
     parent::__construct($configuration, $plugin_id, $plugin_definition);
 
     $this->imageDiscovery = $image_discovery;
     $this->entityTypeManager = $entity_type_manager;
+    $this->accountSwitcher = $account_switcher;
   }
 
   /**
@@ -67,7 +78,8 @@ public static function create(ContainerInterface $container, array $configuratio
       $plugin_id,
       $plugin_definition,
       $container->get('dgi_image_discovery.service'),
-      $container->get('entity_type.manager')
+      $container->get('entity_type.manager'),
+      $container->get('account_switcher')
     );
   }
 
@@ -95,6 +107,9 @@ public function getPropertyDefinitions(DatasourceInterface $datasource = NULL) {
    * {@inheritdoc}
    */
   public function addFieldValues(ItemInterface $item) {
+    // Switch to anonymous user.
+    $this->accountSwitcher->switchTo(new AnonymousUserSession());
+
     $entity = $item->getOriginalObject()->getValue();
     $value = NULL;
 
@@ -103,13 +118,17 @@ public function addFieldValues(ItemInterface $item) {
       $event = $this->imageDiscovery->getImage($entity);
       $media = $event->getMedia();
       if (empty($media)) {
+        // Restore the original user before returning.
+        $this->accountSwitcher->switchBack();
         return;
       }
 
       $media_source = $media->getSource();
       $file_id = $media_source->getSourceFieldValue($media);
       $image = $this->entityTypeManager->getStorage('file')->load($file_id);
       if (empty($image)) {
+        // Restore the original user before returning.
+        $this->accountSwitcher->switchBack();
         return;
       }
 
@@ -123,6 +142,9 @@ public function addFieldValues(ItemInterface $item) {
         $field->addValue($value);
       }
     }
+
+    // Restore the original user.
+    $this->accountSwitcher->switchBack();
   }
 
 }