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<?php |
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/* |
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* This file is part of the Sonata Project package. |
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* |
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* (c) Thomas Rabaix <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Sonata\CacheBundle\Adapter; |
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use Sonata\Cache\CacheAdapterInterface; |
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use Sonata\Cache\CacheElement; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\HttpKernel\Controller\ControllerResolverInterface; |
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use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException; |
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use Symfony\Component\Routing\Generator\UrlGeneratorInterface; |
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use Symfony\Component\Routing\RouterInterface; |
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/** |
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* Not really a cache as it, depends on the reverse proxy feature. |
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*/ |
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class SsiCache implements CacheAdapterInterface |
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{ |
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protected $router; |
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protected $servers; |
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protected $resolver; |
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protected $token; |
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/** |
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* @param string $token |
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* @param RouterInterface $router |
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* @param ControllerResolverInterface $resolver |
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*/ |
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public function __construct($token, RouterInterface $router, ControllerResolverInterface $resolver = null) |
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{ |
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$this->token = $token; |
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$this->router = $router; |
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$this->resolver = $resolver; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function flushAll() |
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{ |
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return true; // nothing to flush |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function flush(array $keys = array()) |
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{ |
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return true; // still nothing to flush ... |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function has(array $keys) |
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{ |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get(array $keys) |
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{ |
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if (!isset($keys['controller'])) { |
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throw new \RuntimeException('Please define a controller key'); |
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} |
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if (!isset($keys['parameters'])) { |
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throw new \RuntimeException('Please define a parameters key'); |
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} |
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$content = sprintf('<!--# include virtual="%s" -->', $this->getUrl($keys)); |
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return new CacheElement($keys, new Response($content)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function set(array $keys, $data, $ttl = CacheElement::DAY, array $contextualKeys = array()) |
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{ |
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return new CacheElement($keys, $data, $ttl, $contextualKeys); |
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} |
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/** |
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* @param Request $request |
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* |
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* @return mixed |
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*/ |
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public function cacheAction(Request $request) |
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{ |
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$parameters = $request->get('parameters', array()); |
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if ($request->get('token') != $this->computeHash($parameters)) { |
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throw new AccessDeniedHttpException('Invalid token'); |
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} |
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$subRequest = Request::create('', 'get', $parameters, $request->cookies->all(), array(), $request->server->all()); |
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$controller = $this->resolver->getController($subRequest); |
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$subRequest->attributes->add(array('_controller' => $parameters['controller'])); |
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$subRequest->attributes->add($parameters['parameters']); |
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$arguments = $this->resolver->getArguments($subRequest, $controller); |
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// call controller |
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return call_user_func_array($controller, $arguments); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function isContextual() |
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{ |
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return true; |
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} |
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/** |
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* @param array $keys |
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* |
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* @return string |
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*/ |
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protected function getUrl(array $keys) |
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{ |
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$parameters = array( |
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'token' => $this->computeHash($keys), |
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'parameters' => $keys, |
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); |
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return $this->router->generate('sonata_cache_ssi', $parameters, UrlGeneratorInterface::ABSOLUTE_PATH); |
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} |
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/** |
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* @param array $keys |
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* |
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* @return string |
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*/ |
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protected function computeHash(array $keys) |
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{ |
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ksort($keys); |
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return hash('sha256', $this->token.serialize($keys)); |
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} |
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} |
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sonata-project /
SonataCacheBundle
