--- /dev/null
+<?php
+
+namespace Drupal\media_entity;
+
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Entity\EntityAccessControlHandler;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Session\AccountInterface;
+
+/**
+ * Defines an access controller for the media entity.
+ */
+class MediaAccessController extends EntityAccessControlHandler {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
+ if ($account->hasPermission('administer media')) {
+ return AccessResult::allowed()->cachePerPermissions();
+ }
+
+ $is_owner = ($account->id() && $account->id() == $entity->getPublisherId()) ? TRUE : FALSE;
+ switch ($operation) {
+ case 'view':
+ return AccessResult::allowedIf($account->hasPermission('view media') && $entity->status->value);
+
+ case 'update':
+ return AccessResult::allowedIf(($account->hasPermission('update media') && $is_owner) || $account->hasPermission('update any media'))->cachePerPermissions()->cachePerUser()->addCacheableDependency($entity);
+
+ case 'delete':
+ return AccessResult::allowedIf(($account->hasPermission('delete media') && $is_owner) || $account->hasPermission('delete any media'))->cachePerPermissions()->cachePerUser()->addCacheableDependency($entity);
+ }
+
+ // No opinion.
+ return AccessResult::neutral()->cachePerPermissions();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function checkCreateAccess(AccountInterface $account, array $context, $entity_bundle = NULL) {
+ return AccessResult::allowedIfHasPermission($account, 'create media');
+ }
+
+}