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<?php |
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/* |
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* This file is part of the Silverback API Components Bundle Project |
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* |
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* (c) Daniel West <[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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declare(strict_types=1); |
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namespace Silverback\ApiComponentsBundle\EventListener\Mercure; |
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use ApiPlatform\Exception\OperationNotFoundException; |
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use ApiPlatform\Metadata\HttpOperation; |
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use ApiPlatform\Metadata\Resource\Factory\ResourceMetadataCollectionFactoryInterface; |
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use ApiPlatform\Metadata\Resource\Factory\ResourceNameCollectionFactoryInterface; |
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use ApiPlatform\Util\CorsTrait; |
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use Silverback\ApiComponentsBundle\Annotation\Publishable; |
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use Silverback\ApiComponentsBundle\Helper\Publishable\PublishableStatusChecker; |
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use Symfony\Component\HttpFoundation\Cookie; |
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use Symfony\Component\HttpKernel\Event\ResponseEvent; |
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use Symfony\Component\Mercure\Jwt\TokenFactoryInterface; |
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use Symfony\Component\Routing\RequestContext; |
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class AddMercureTokenListener |
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{ |
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use CorsTrait; |
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public function __construct(private TokenFactoryInterface $tokenFactory, private ResourceNameCollectionFactoryInterface $resourceNameCollectionFactory, private ResourceMetadataCollectionFactoryInterface $resourceMetadataCollectionFactory, private PublishableStatusChecker $publishableStatusChecker, private RequestContext $requestContext) |
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{ |
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} |
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/** |
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* Sends the Mercure header on each response. |
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* Probably lock this on the "/me" route. |
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*/ |
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public function onKernelResponse(ResponseEvent $event): void |
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{ |
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$request = $event->getRequest(); |
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// Prevent issues with NelmioCorsBundle |
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if ($this->isPreflightRequest($request)) { |
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return; |
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} |
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$subscribeIris = []; |
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$response = $event->getResponse(); |
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foreach ($this->resourceNameCollectionFactory->create() as $resourceClass) { |
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$resourceMetadataCollection = $this->resourceMetadataCollectionFactory->create($resourceClass); |
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try { |
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$operation = $resourceMetadataCollection->getOperation(forceCollection: false, httpOperation: true); |
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} catch (OperationNotFoundException $e) { |
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continue; |
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} |
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if (!$operation instanceof HttpOperation) { |
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continue; |
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} |
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$mercure = $operation->getMercure(); |
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if (!$mercure) { |
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continue; |
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} |
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$refl = new \ReflectionClass($operation->getClass()); |
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$isPublishable = \count($refl->getAttributes(Publishable::class)); |
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// TODO: the str_replace thing should be fixed inside API Platform (will be available in next patch) |
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$uriTemplate = $this->buildAbsoluteUriTemplate() . $operation->getRoutePrefix() . str_replace('.{_format}', '{._format}', $operation->getUriTemplate()); |
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if (!$isPublishable) { |
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$subscribeIris[] = $uriTemplate; |
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continue; |
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} |
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// Note that `?draft=1` is also hard coded into the PublishableIriConverter, probably make this configurable somewhere |
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if ($this->publishableStatusChecker->isGranted($operation->getClass())) { |
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$subscribeIris[] = $uriTemplate . '?draft=1'; |
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$subscribeIris[] = $uriTemplate; |
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continue; |
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} |
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$subscribeIris[] = $uriTemplate; |
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} |
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$response->headers->setCookie(Cookie::create('mercureAuthorization', $this->tokenFactory->create($subscribeIris, []))); |
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} |
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/** |
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* Mercure subscribe iris should be absolute |
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* this code can also be found in Symfony's URL Generator |
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* but as we work without a symfony route here (and we would not want to do this as its not spec-compliant) |
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* we do it by hand. |
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*/ |
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private function buildAbsoluteUriTemplate(): string |
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{ |
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$scheme = $this->requestContext->getScheme(); |
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$host = $this->requestContext->getHost(); |
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$port = $this->requestContext->isSecure() ? $this->requestContext->getHttpsPort() : $this->requestContext->getHttpPort(); |
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if (80 !== $port || 443 !== $port) { |
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return sprintf('%s://%s:%d', $scheme, $host, $port); |
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} |
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return sprintf('%s://%s', $scheme, $host); |
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} |
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} |
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components-web-app /
api-components-bundle
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