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<?php
namespace Drupal\Core\Access;
use Drupal\Core\Controller\ControllerResolverInterface;
use Drupal\Core\Routing\Access\AccessInterface as RoutingAccessInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Session\AccountInterface;
use Symfony\Component\Routing\Route;
/**
* Defines an access checker that allows specifying a custom method for access.
*
* You should only use it when you are sure that the access callback will not be
* reused. Good examples in core are Edit or Toolbar module.
*
* The method is called on another instance of the controller class, so you
* cannot reuse any stored property of your actual controller instance used
* to generate the output.
*/
class CustomAccessCheck implements RoutingAccessInterface {
/**
* The controller resolver.
*
* @var \Drupal\Core\Controller\ControllerResolverInterface
*/
protected $controllerResolver;
/**
* The arguments resolver.
*
* @var \Drupal\Core\Access\AccessArgumentsResolverFactoryInterface
*/
protected $argumentsResolverFactory;
/**
* Constructs a CustomAccessCheck instance.
*
* @param \Drupal\Core\Controller\ControllerResolverInterface $controller_resolver
* The controller resolver.
* @param \Drupal\Core\Access\AccessArgumentsResolverFactoryInterface $arguments_resolver_factory
* The arguments resolver factory.
*/
public function __construct(ControllerResolverInterface $controller_resolver, AccessArgumentsResolverFactoryInterface $arguments_resolver_factory) {
$this->controllerResolver = $controller_resolver;
$this->argumentsResolverFactory = $arguments_resolver_factory;
}
/**
* Checks access for the account and route using the custom access checker.
*
* @param \Symfony\Component\Routing\Route $route
* The route.
* @param \Drupal\Core\Routing\RouteMatchInterface $route_match
* The route match object to be checked.
* @param \Drupal\Core\Session\AccountInterface $account
* The account being checked.
*
* @return \Drupal\Core\Access\AccessResultInterface
* The access result.
*/
public function access(Route $route, RouteMatchInterface $route_match, AccountInterface $account) {
$callable = $this->controllerResolver->getControllerFromDefinition($route->getRequirement('_custom_access'));
$arguments_resolver = $this->argumentsResolverFactory->getArgumentsResolver($route_match, $account);
$arguments = $arguments_resolver->getArguments($callable);
return call_user_func_array($callable, $arguments);
}
}