Version 1

[yaffs-website] / web / core / lib / Drupal / Core / Access / CustomAccessCheck.php

diff --git a/web/core/lib/Drupal/Core/Access/CustomAccessCheck.php b/web/core/lib/Drupal/Core/Access/CustomAccessCheck.php
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+++ b/web/core/lib/Drupal/Core/Access/CustomAccessCheck.php
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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);
+  }
+
+}