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<?php |
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/* |
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* This file is part of the Superdesk Web Publisher Content Bundle. |
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* |
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* Copyright 2015 Sourcefabric z.u. and contributors. |
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* |
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* For the full copyright and license information, please see the |
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* AUTHORS and LICENSE files distributed with this source code. |
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* |
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* @copyright 2015 Sourcefabric z.ú |
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* @license http://www.superdesk.org/license |
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*/ |
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namespace SWP\Bundle\ContentBundle\EventListener; |
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use SWP\Component\Common\Response\ResourcesListResponseInterface; |
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use SWP\Component\Common\Response\SingleResourceResponseInterface; |
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use Symfony\Component\EventDispatcher\EventDispatcherInterface; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpKernel\Controller\ArgumentResolver; |
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use Symfony\Component\HttpKernel\Controller\ControllerResolverInterface; |
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use Symfony\Component\HttpKernel\Event\FilterControllerEvent; |
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use Symfony\Component\HttpKernel\Event\GetResponseEvent; |
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use Symfony\Component\HttpKernel\HttpKernelInterface; |
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use Symfony\Component\HttpKernel\KernelEvents; |
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use Symfony\Component\Routing\Matcher\UrlMatcherInterface; |
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class LinkRequestListener |
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{ |
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/** |
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* @var ControllerResolverInterface |
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*/ |
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protected $resolver; |
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/** |
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* @var UrlMatcherInterface |
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*/ |
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protected $urlMatcher; |
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/** |
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* @param ControllerResolverInterface $controllerResolver |
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* @param UrlMatcherInterface $urlMatcher |
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94 |
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*/ |
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public function __construct(ControllerResolverInterface $controllerResolver, UrlMatcherInterface $urlMatcher) |
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94 |
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{ |
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$this->resolver = $controllerResolver; |
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$this->urlMatcher = $urlMatcher; |
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} |
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/** |
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* @param GetResponseEvent $event |
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* |
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* @return array |
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*/ |
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public function onKernelRequest(GetResponseEvent $event, $eventName, EventDispatcherInterface $dispatcher) |
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{ |
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if (!$event->getRequest()->headers->has('link')) { |
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return; |
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2 |
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} |
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$links = []; |
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$header = $event->getRequest()->headers->get('link'); |
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/* |
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* Due to limitations, multiple same-name headers are sent as comma |
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* separated values. |
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* |
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* This breaks those headers into Link headers following the format |
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1 |
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* http://tools.ietf.org/html/rfc2068#section-19.6.2.4 |
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1 |
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*/ |
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while (preg_match('/^((?:[^"]|"[^"]*")*?),/', $header, $matches)) { |
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$header = trim(substr($header, strlen($matches[0]))); |
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$links[] = $matches[1]; |
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} |
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if ($header) { |
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$links[] = $header; |
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} |
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$requestMethod = $this->urlMatcher->getContext()->getMethod(); |
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// The controller resolver needs a request to resolve the controller. |
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$stubRequest = new Request(); |
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2 |
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foreach ($links as $idx => $link) { |
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// Force the GET method to avoid the use of the previous method (LINK/UNLINK) |
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$this->urlMatcher->getContext()->setMethod('GET'); |
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$linkParams = explode(';', trim($link)); |
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$resourceType = null; |
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View Code Duplication |
if (count($linkParams) > 1) { |
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$resourceType = trim(preg_replace('/<|>/', '', $linkParams[1])); |
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$resourceType = str_replace('"', '', str_replace('rel=', '', $resourceType)); |
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} |
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$resource = array_shift($linkParams); |
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$resource = preg_replace('/<|>/', '', $resource); |
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1 |
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// Assume that no resource is specified here if there is no path separator, because urlMatcher will return homepage |
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if (strpos($resource, '/') === false) { |
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continue; |
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} |
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$tempRequest = Request::create($resource); |
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try { |
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$route = $this->urlMatcher->match($tempRequest->getRequestUri()); |
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} catch (\Exception $e) { |
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// If we don't have a matching route we return the original Link header |
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continue; |
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} |
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$stubRequest->attributes->replace($route); |
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$stubRequest->server = $event->getRequest()->server; |
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if (false === $controller = $this->resolver->getController($stubRequest)) { |
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continue; |
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} |
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2 |
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$subEvent = new FilterControllerEvent($event->getKernel(), $controller, $stubRequest, HttpKernelInterface::SUB_REQUEST); |
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$kernelSubEvent = new GetResponseEvent($event->getKernel(), $stubRequest, HttpKernelInterface::SUB_REQUEST); |
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$dispatcher->dispatch(KernelEvents::REQUEST, $kernelSubEvent); |
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$dispatcher->dispatch(KernelEvents::CONTROLLER, $subEvent); |
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$controller = $subEvent->getController(); |
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$argumentResolver = new ArgumentResolver(); |
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$arguments = $argumentResolver->getArguments($stubRequest, $controller); |
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try { |
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$result = call_user_func_array($controller, $arguments); |
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// Our api returns objects for single resources |
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if (!is_object($result)) { |
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continue; |
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} |
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// return clean object for LINK requests |
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if ($result instanceof ResourcesListResponseInterface) { |
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$result = $result->getResources(); |
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} elseif ($result instanceof SingleResourceResponseInterface) { |
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$result = $result->getResource(); |
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} |
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$links[$idx] = ['object' => $result, 'resourceType' => $resourceType]; |
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} catch (\Exception $e) { |
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$links[$idx] = ['object' => $e, 'resourceType' => 'exception']; |
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continue; |
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} |
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} |
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$event->getRequest()->attributes->set('links', $links); |
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$this->urlMatcher->getContext()->setMethod($requestMethod); |
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return $links; |
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} |
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} |
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ahilles107 /
web-publisher
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.