Security update for Core, with self-updated composer
[yaffs-website] / web / core / modules / workflows / src / WorkflowAccessControlHandler.php
1 <?php
2
3 namespace Drupal\workflows;
4
5 use Drupal\Component\Plugin\PluginManagerInterface;
6 use Drupal\Core\Entity\EntityAccessControlHandler;
7 use Drupal\Core\Entity\EntityHandlerInterface;
8 use Drupal\Core\Entity\EntityInterface;
9 use Drupal\Core\Entity\EntityTypeInterface;
10 use Drupal\Core\Session\AccountInterface;
11 use Drupal\Core\Access\AccessResult;
12 use Symfony\Component\DependencyInjection\ContainerInterface;
13
14 /**
15  * Access controller for the Workflow entity.
16  *
17  * @see \Drupal\workflows\Entity\Workflow.
18  */
19 class WorkflowAccessControlHandler extends EntityAccessControlHandler implements EntityHandlerInterface {
20
21   /**
22    * The workflow type plugin manager.
23    *
24    * @var \Drupal\Component\Plugin\PluginManagerInterface
25    */
26   protected $workflowTypeManager;
27
28   /**
29    * {@inheritdoc}
30    */
31   public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
32     return new static(
33       $entity_type,
34       $container->get('plugin.manager.workflows.type')
35     );
36   }
37
38   /**
39    * Constructs the workflow access control handler instance.
40    *
41    * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
42    *   The entity type definition.
43    * @param \Drupal\Component\Plugin\PluginManagerInterface $workflow_type_manager
44    *   The workflow type plugin manager.
45    */
46   public function __construct(EntityTypeInterface $entity_type, PluginManagerInterface $workflow_type_manager) {
47     parent::__construct($entity_type);
48     $this->workflowTypeManager = $workflow_type_manager;
49   }
50
51   /**
52    * {@inheritdoc}
53    */
54   protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
55     /** @var \Drupal\workflows\Entity\Workflow $entity */
56     $workflow_type = $entity->getTypePlugin();
57     if (strpos($operation, 'delete-state') === 0) {
58       list(, $state_id) = explode(':', $operation, 2);
59       // Deleting a state is editing a workflow, but also we should forbid
60       // access if there is only one state.
61       return AccessResult::allowedIf(count($entity->getTypePlugin()->getStates()) > 1)
62         ->andIf(parent::checkAccess($entity, 'edit', $account))
63         ->andIf(AccessResult::allowedIf(!in_array($state_id, $workflow_type->getRequiredStates(), TRUE)))
64         ->addCacheableDependency($entity);
65     }
66
67     return parent::checkAccess($entity, $operation, $account);
68   }
69
70   /**
71    * {@inheritdoc}
72    */
73   protected function checkCreateAccess(AccountInterface $account, array $context, $entity_bundle = NULL) {
74     $workflow_types_count = count($this->workflowTypeManager->getDefinitions());
75     $admin_access = parent::checkCreateAccess($account, $context, $entity_bundle);
76     // Allow access if there is at least one workflow type. Since workflow types
77     // are provided by modules this is cacheable until extensions change.
78     return $admin_access
79       ->andIf(AccessResult::allowedIf($workflow_types_count > 0))
80       ->addCacheTags(['workflow_type_plugins']);
81   }
82
83 }