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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\HttpFoundation;
- /**
- * Request stack that controls the lifecycle of requests.
- *
- * @author Benjamin Eberlei <kontakt@beberlei.de>
- */
- class RequestStack
- {
- /**
- * @var Request[]
- */
- private $requests = array();
- /**
- * Pushes a Request on the stack.
- *
- * This method should generally not be called directly as the stack
- * management should be taken care of by the application itself.
- */
- public function push(Request $request)
- {
- $this->requests[] = $request;
- }
- /**
- * Pops the current request from the stack.
- *
- * This operation lets the current request go out of scope.
- *
- * This method should generally not be called directly as the stack
- * management should be taken care of by the application itself.
- *
- * @return Request|null
- */
- public function pop()
- {
- if (!$this->requests) {
- return;
- }
- return array_pop($this->requests);
- }
- /**
- * @return Request|null
- */
- public function getCurrentRequest()
- {
- return end($this->requests) ?: null;
- }
- /**
- * Gets the master Request.
- *
- * Be warned that making your code aware of the master request
- * might make it un-compatible with other features of your framework
- * like ESI support.
- *
- * @return Request|null
- */
- public function getMasterRequest()
- {
- if (!$this->requests) {
- return;
- }
- return $this->requests[0];
- }
- /**
- * Returns the parent request of the current.
- *
- * Be warned that making your code aware of the parent request
- * might make it un-compatible with other features of your framework
- * like ESI support.
- *
- * If current Request is the master request, it returns null.
- *
- * @return Request|null
- */
- public function getParentRequest()
- {
- $pos = count($this->requests) - 2;
- if (!isset($this->requests[$pos])) {
- return;
- }
- return $this->requests[$pos];
- }
- }
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