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<?php declare(strict_types=1); |
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/** |
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* It's free open-source software released under the MIT License. |
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* |
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* @author Anatoly Fenric <[email protected]> |
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* @copyright Copyright (c) 2018, Anatoly Fenric |
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* @license https://github.com/sunrise-php/http-router/blob/master/LICENSE |
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* @link https://github.com/sunrise-php/http-router |
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*/ |
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namespace Sunrise\Http\Router; |
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/** |
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* Import classes |
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*/ |
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use Psr\Container\ContainerInterface; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use Sunrise\Http\Router\Exception\UnresolvableReferenceException; |
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use Sunrise\Http\Router\Middleware\CallableMiddleware; |
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use Sunrise\Http\Router\RequestHandler\CallableRequestHandler; |
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use Closure; |
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use ReflectionClass; |
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use ReflectionMethod; |
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/** |
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* Import functions |
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*/ |
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use function is_array; |
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use function is_callable; |
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use function is_string; |
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use function is_subclass_of; |
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use function method_exists; |
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use function sprintf; |
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/** |
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* ReferenceResolver |
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* |
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* @since 2.10.0 |
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*/ |
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class ReferenceResolver implements ReferenceResolverInterface |
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{ |
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/** |
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* The reference resolver container |
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* |
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* @var ContainerInterface|null |
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*/ |
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private $container = null; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getContainer() : ?ContainerInterface |
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{ |
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return $this->container; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setContainer(?ContainerInterface $container) : void |
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{ |
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$this->container = $container; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toRequestHandler($reference) : RequestHandlerInterface |
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{ |
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if ($reference instanceof RequestHandlerInterface) { |
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return $reference; |
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} |
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if ($reference instanceof Closure) { |
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return new CallableRequestHandler($reference); |
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} |
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list($class, $method) = $this->normalizeReference($reference); |
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if (isset($class, $method) && method_exists($class, $method)) { |
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return new CallableRequestHandler([$this->resolveClass($class), $method]); |
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} |
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if (isset($class) && is_subclass_of($class, RequestHandlerInterface::class)) { |
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return $this->resolveClass($class); |
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} |
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throw new UnresolvableReferenceException(sprintf( |
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'Unable to resolve the "%s" reference to a request handler.', |
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$this->stringifyReference($reference) |
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)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toMiddleware($reference) : MiddlewareInterface |
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{ |
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if ($reference instanceof MiddlewareInterface) { |
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return $reference; |
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} |
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if ($reference instanceof Closure) { |
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return new CallableMiddleware($reference); |
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} |
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list($class, $method) = $this->normalizeReference($reference); |
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if (isset($class, $method) && method_exists($class, $method)) { |
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return new CallableMiddleware([$this->resolveClass($class), $method]); |
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} |
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if (isset($class) && is_subclass_of($class, MiddlewareInterface::class)) { |
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return $this->resolveClass($class); |
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} |
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throw new UnresolvableReferenceException(sprintf( |
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'Unable to resolve the "%s" reference to a middleware.', |
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$this->stringifyReference($reference) |
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)); |
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} |
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/** |
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* Normalizes the given reference |
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* |
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* @param mixed $reference |
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* |
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* @return array |
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*/ |
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private function normalizeReference($reference) : array |
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{ |
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if ($reference instanceof ReflectionClass) { |
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return [$reference->getName(), null]; |
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} |
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if ($reference instanceof ReflectionMethod) { |
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return [$reference->getDeclaringClass()->getName(), $reference->getName()]; |
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} |
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if (is_array($reference) && is_callable($reference, true)) { |
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return $reference; |
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} |
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if (is_string($reference)) { |
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return [$reference, null]; |
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} |
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return [null, null]; |
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} |
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/** |
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* Stringifies the given reference |
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* |
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* @param mixed $reference |
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* |
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* @return string |
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*/ |
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8 |
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private function stringifyReference($reference) : string |
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{ |
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if ($reference instanceof ReflectionClass) { |
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return $reference->getName(); |
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} |
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// if ($reference instanceof ReflectionMethod) { |
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// return $reference->getDeclaringClass()->getName() . '@' . $reference->getName(); |
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// } |
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6 |
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if (is_array($reference) && is_callable($reference, true)) { |
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return $reference[0] . '@' . $reference[1]; |
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} |
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4 |
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if (is_string($reference)) { |
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return $reference; |
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} |
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return ''; |
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} |
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/** |
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* Resolves the given class |
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* |
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* @param string $class |
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* |
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* @return object |
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*/ |
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private function resolveClass(string $class) |
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{ |
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if ($this->container && $this->container->has($class)) { |
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1 |
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return $this->container->get($class); |
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} |
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return new $class; |
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} |
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} |
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sunrise-php /
http-router
