104 lines
2.3 KiB
PHP
104 lines
2.3 KiB
PHP
<?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 = [];
|
|
|
|
/**
|
|
* 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];
|
|
}
|
|
}
|