class WorkflowStateTransitionOperationsAccessCheck in Drupal 8

Provides an access check for state and transition operations.

Hierarchy

• class \Drupal\workflows\WorkflowStateTransitionOperationsAccessCheck implements AccessInterface

1 file declares its use of WorkflowStateTransitionOperationsAccessCheck

WorkflowStateTransitionOperationsAccessCheckTest.php in core/modules/workflows/tests/src/Unit/WorkflowStateTransitionOperationsAccessCheckTest.php

1 string reference to 'WorkflowStateTransitionOperationsAccessCheck'

workflows.services.yml in core/modules/workflows/workflows.services.yml

core/modules/workflows/workflows.services.yml

1 service uses WorkflowStateTransitionOperationsAccessCheck

workflows.access_check.extended_permissions in core/modules/workflows/workflows.services.yml

\Drupal\workflows\WorkflowStateTransitionOperationsAccessCheck

File

core/modules/workflows/src/WorkflowStateTransitionOperationsAccessCheck.php, line 13

Namespace

Drupal\workflows

class WorkflowStateTransitionOperationsAccessCheck implements AccessInterface {

  /**
   * Checks access for operations of workflow states and transitions.
   *
   * The value of '_workflow_access' is used to check to kind of access that
   * should be applied to a route in the context of a workflow and a state or
   * transition. States and transitions can individually have access control
   * applied to them for 'add', 'update' and 'delete'. By default workflows will
   * use the admin permission 'administer workflows' for all of these
   * operations, except for delete-state which checks there is at least one
   * state, a state does not have data and it's not a required state.
   *
   * For the update and delete operations, a workflow and a state or transition
   * is required in the route for the access check to be applied. For the "add"
   * operation, only a workflow is required. The '_workflow_access' requirement
   * translates into access checks on the workflow entity type in the formats:
   *   - @code"$operation-state:$state_id"@endcode
   *   - @code"$operation-transition:$transition_id"@endcode
   *
   * For example the following route definition with the path
   * "/test-workflow/foo-state/delete" the 'delete-state:foo-state' operation
   * will be checked:
   * @code
   * pattern: '/{workflow}/{workflow_state}/delete'
   * requirements:
   *   _workflow_access: 'delete-state'
   * @endcode
   *
   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
   *   The parametrized route
   * @param \Drupal\Core\Session\AccountInterface $account
   *   The currently logged in account.
   *
   * @return \Drupal\Core\Access\AccessResultInterface
   *   An access result.
   *
   * @throws \Exception
   *   Throws an exception when a route is defined with an invalid operation.
   */
  public function access(RouteMatchInterface $route_match, AccountInterface $account) {
    $workflow_operation = $this
      ->getOperation($route_match);
    if (!preg_match('/^(?<operation>add|update|delete)-(?<type>state|transition)$/', $workflow_operation, $matches)) {
      throw new \Exception("Invalid _workflow_access operation '{$workflow_operation}' specified for route '{$route_match->getRouteName()}'.");
    }
    $parameters = $route_match
      ->getParameters();
    $workflow = $parameters
      ->get('workflow');
    if ($workflow && $matches['operation'] === 'add') {
      return $workflow
        ->access($workflow_operation, $account, TRUE);
    }
    if ($workflow && ($type = $parameters
      ->get(sprintf('workflow_%s', $matches['type'])))) {
      return $workflow
        ->access(sprintf('%s:%s', $workflow_operation, $type), $account, TRUE);
    }
    return AccessResult::neutral();
  }

  /**
   * Get the operation that will be used for the access check
   *
   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
   *   The parametrized route
   *
   * @return string
   *   The access operation.
   */
  protected function getOperation(RouteMatchInterface $route_match) {
    return $route_match
      ->getRouteObject()
      ->getRequirement('_workflow_access');
  }

}

Members

Name	Modifiers	Type	Description	Overrides
WorkflowStateTransitionOperationsAccessCheck::access	public	function	Checks access for operations of workflow states and transitions.	1
WorkflowStateTransitionOperationsAccessCheck::getOperation	protected	function	Get the operation that will be used for the access check	1