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<?php
namespace Drupal\Core\Access;
use Drupal\Core\Routing\Access\AccessInterface as RoutingAccessInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Utility\CallableResolver;
use Symfony\Component\HttpFoundation\Request;
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 {
/**
* Constructs a CustomAccessCheck instance.
*
* @param \Drupal\Core\Utility\CallableResolver $callableResolver
* The callable resolver.
* @param \Drupal\Core\Access\AccessArgumentsResolverFactoryInterface $argumentsResolverFactory
* The arguments resolver factory.
*/
public function __construct(
protected CallableResolver $callableResolver,
protected AccessArgumentsResolverFactoryInterface $argumentsResolverFactory,
) {
}
/**
* 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.
* @param \Symfony\Component\HttpFoundation\Request $request
* Optional, a request. Only supply this parameter when checking the
* incoming request.
*
* @return \Drupal\Core\Access\AccessResultInterface
* The access result.
*/
public function access(Route $route, RouteMatchInterface $route_match, AccountInterface $account, ?Request $request = NULL) {
try {
$callable = $this->callableResolver->getCallableFromDefinition($route->getRequirement('_custom_access'));
}
catch (\InvalidArgumentException) {
// The custom access controller method was not found.
throw new \BadMethodCallException(sprintf('The "%s" method is not callable as a _custom_access callback in route "%s"', $route->getRequirement('_custom_access'), $route->getPath()));
}
$arguments_resolver = $this->argumentsResolverFactory->getArgumentsResolver($route_match, $account, $request);
$arguments = $arguments_resolver->getArguments($callable);
return call_user_func_array($callable, $arguments);
}
}
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