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1 <?php
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2
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3 namespace Drupal\Core\EventSubscriber;
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4
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5 use Psr\Http\Message\ResponseInterface;
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6
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7 use Symfony\Bridge\PsrHttpMessage\HttpFoundationFactoryInterface;
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8 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
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9 use Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent;
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10 use Symfony\Component\HttpKernel\KernelEvents;
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11
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12 /**
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13 * Response subscriber for handling PSR-7 responses.
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14 */
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15 class PsrResponseSubscriber implements EventSubscriberInterface {
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16
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17 /**
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18 * The httpFoundation factory.
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19 *
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20 * @var \Symfony\Bridge\PsrHttpMessage\HttpFoundationFactoryInterface
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21 */
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22 protected $httpFoundationFactory;
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23
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24 /**
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25 * Constructs a new PathRootsSubscriber instance.
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26 *
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27 * @param \Symfony\Bridge\PsrHttpMessage\HttpFoundationFactoryInterface $http_foundation_factory
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28 * The httpFoundation factory.
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29 */
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30 public function __construct(HttpFoundationFactoryInterface $http_foundation_factory) {
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31 $this->httpFoundationFactory = $http_foundation_factory;
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32 }
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33
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34 /**
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35 * Converts a PSR-7 response to a Symfony response.
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36 *
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37 * @param \Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent $event
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38 * The Event to process.
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39 */
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40 public function onKernelView(GetResponseForControllerResultEvent $event) {
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41 $controller_result = $event->getControllerResult();
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42
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43 if ($controller_result instanceof ResponseInterface) {
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44 $event->setResponse($this->httpFoundationFactory->createResponse($controller_result));
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45 }
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46
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47 }
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48
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49 /**
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50 * {@inheritdoc}
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51 */
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52 public static function getSubscribedEvents() {
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53 $events[KernelEvents::VIEW][] = ['onKernelView'];
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54 return $events;
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55 }
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56
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57 }
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