use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\HttpKernelInterface;
/**
* Ssi implements the SSI capabilities to Request and Response instances.
*
* @author Sebastian Krebs <krebs.seb@gmail.com>
*/
-class Ssi implements SurrogateInterface
+class Ssi extends AbstractSurrogate
{
- private $contentTypes;
- private $phpEscapeMap = array(
- array('<?', '<%', '<s', '<S'),
- array('<?php echo "<?"; ?>', '<?php echo "<%"; ?>', '<?php echo "<s"; ?>', '<?php echo "<S"; ?>'),
- );
-
- /**
- * Constructor.
- *
- * @param array $contentTypes An array of content-type that should be parsed for SSI information
- * (default: text/html, text/xml, application/xhtml+xml, and application/xml)
- */
- public function __construct(array $contentTypes = array('text/html', 'text/xml', 'application/xhtml+xml', 'application/xml'))
- {
- $this->contentTypes = $contentTypes;
- }
-
/**
* {@inheritdoc}
*/
return 'ssi';
}
- /**
- * {@inheritdoc}
- */
- public function createCacheStrategy()
- {
- return new ResponseCacheStrategy();
- }
-
- /**
- * {@inheritdoc}
- */
- public function hasSurrogateCapability(Request $request)
- {
- if (null === $value = $request->headers->get('Surrogate-Capability')) {
- return false;
- }
-
- return false !== strpos($value, 'SSI/1.0');
- }
-
- /**
- * {@inheritdoc}
- */
- public function addSurrogateCapability(Request $request)
- {
- $current = $request->headers->get('Surrogate-Capability');
- $new = 'symfony2="SSI/1.0"';
-
- $request->headers->set('Surrogate-Capability', $current ? $current.', '.$new : $new);
- }
-
/**
* {@inheritdoc}
*/
}
}
- /**
- * {@inheritdoc}
- */
- public function needsParsing(Response $response)
- {
- if (!$control = $response->headers->get('Surrogate-Control')) {
- return false;
- }
-
- return (bool) preg_match('#content="[^"]*SSI/1.0[^"]*"#', $control);
- }
-
/**
* {@inheritdoc}
*/
$response->headers->set('X-Body-Eval', 'SSI');
// remove SSI/1.0 from the Surrogate-Control header
- if ($response->headers->has('Surrogate-Control')) {
- $value = $response->headers->get('Surrogate-Control');
- if ('content="SSI/1.0"' == $value) {
- $response->headers->remove('Surrogate-Control');
- } elseif (preg_match('#,\s*content="SSI/1.0"#', $value)) {
- $response->headers->set('Surrogate-Control', preg_replace('#,\s*content="SSI/1.0"#', '', $value));
- } elseif (preg_match('#content="SSI/1.0",\s*#', $value)) {
- $response->headers->set('Surrogate-Control', preg_replace('#content="SSI/1.0",\s*#', '', $value));
- }
- }
- }
-
- /**
- * {@inheritdoc}
- */
- public function handle(HttpCache $cache, $uri, $alt, $ignoreErrors)
- {
- $subRequest = Request::create($uri, 'get', array(), $cache->getRequest()->cookies->all(), array(), $cache->getRequest()->server->all());
-
- try {
- $response = $cache->handle($subRequest, HttpKernelInterface::SUB_REQUEST, true);
-
- if (!$response->isSuccessful()) {
- throw new \RuntimeException(sprintf('Error when rendering "%s" (Status code is %s).', $subRequest->getUri(), $response->getStatusCode()));
- }
-
- return $response->getContent();
- } catch (\Exception $e) {
- if ($alt) {
- return $this->handle($cache, $alt, '', $ignoreErrors);
- }
-
- if (!$ignoreErrors) {
- throw $e;
- }
- }
+ $this->removeFromControl($response);
}
}