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<?php |
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/** |
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* Copyright (c) 2020. |
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* @author Paweł Antosiak <[email protected]> |
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*/ |
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declare(strict_types=1); |
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namespace Gorynych\Http\Routing; |
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use Cake\Collection\Collection; |
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use Gorynych\Http\Exception\MethodNotAllowedHttpException; |
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use Gorynych\Http\Exception\NotFoundHttpException; |
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use Gorynych\Operation\ResourceOperationInterface; |
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use Gorynych\Resource\AbstractResource; |
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use Gorynych\Resource\ResourceLoader; |
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use Symfony\Component\HttpFoundation\Request; |
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final class Router |
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{ |
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private ResourceLoader $resourceLoader; |
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private ?Request $request; |
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public function __construct(ResourceLoader $resourceLoader) |
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{ |
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$this->resourceLoader = $resourceLoader; |
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} |
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/** |
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* Finds resource operation able to process given request |
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* |
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* @param Request $request |
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* @return ResourceOperationInterface |
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* @throws NotFoundHttpException if there is no proper operation mapped to any resource |
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*/ |
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public function findOperation(Request $request): ResourceOperationInterface |
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{ |
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$this->request = $request; |
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$resource = $operation = null; |
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foreach ($this->resourceLoader->getResources() as $resourceClass) { |
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try { |
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$resource = $this->resourceLoader->loadResource($resourceClass); |
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$operation = $this->filterOperationsByMethod($this->filterOperationsByUri($resource)); |
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break; |
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} catch (NotFoundHttpException $e) { |
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continue; |
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} |
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} |
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if (!$operation instanceof ResourceOperationInterface) { |
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throw new NotFoundHttpException(); |
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} |
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$this->resolveResourceIdentity($resource, $operation); |
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return $operation; |
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} |
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/** |
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* Returns resource operations matching request URI |
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* |
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* @param AbstractResource $resource |
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* @return Collection |
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* @throws NotFoundHttpException if even one operation does not match URI pattern |
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*/ |
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private function filterOperationsByUri(AbstractResource $resource): Collection |
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{ |
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$request = $this->request; |
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$operations = $resource->getOperations()->filter( |
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static function (ResourceOperationInterface $operation) use ($request, $resource): bool { |
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return UriMatcher::matchUri($request->getPathInfo(), $resource->getPath(), $operation->getPath()); |
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} |
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); |
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if (true === $operations->isEmpty()) { |
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throw new NotFoundHttpException(); |
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} |
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return $operations; |
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} |
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/** |
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* Returns resource operation matching request HTTP method |
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* |
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* @param Collection $operations matching request URI |
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* @return ResourceOperationInterface |
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* @throws MethodNotAllowedHttpException if method does not match the method of any available operations |
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*/ |
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private function filterOperationsByMethod(Collection $operations): ResourceOperationInterface |
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{ |
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$method = $this->request->getMethod(); |
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$operations = $operations->filter( |
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static function (ResourceOperationInterface $operation) use ($method): bool { |
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return $method === $operation->getMethod(); |
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} |
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); |
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if (true === $operations->isEmpty()) { |
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throw new MethodNotAllowedHttpException(); |
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} |
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return $operations->first(); |
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} |
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/** |
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* Resolves identity of the resource |
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*/ |
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private function resolveResourceIdentity(AbstractResource $resource, ResourceOperationInterface $operation): void |
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{ |
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UriMatcher::matchUri( |
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$this->request->getPathInfo(), |
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$resource->getPath(), |
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$operation->getPath(), |
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$matches |
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); |
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$resource->id = $matches['id'] ?? null; |
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if (true === property_exists($resource, 'subId')) { |
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$resource->subId = $matches['subId'] ?? null; |
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} |
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1 |
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} |
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} |
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Assasz /
gorynych
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