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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of Flight Routing. |
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* |
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* PHP version 7.1 and above required |
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* |
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* @author Divine Niiquaye Ibok <[email protected]> |
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* @copyright 2019 Biurad Group (https://biurad.com/) |
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* @license https://opensource.org/licenses/BSD-3-Clause License |
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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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namespace Flight\Routing\Handlers; |
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use Flight\Routing\Exceptions\InvalidControllerException; |
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use Psr\Container\ContainerInterface; |
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/** |
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* Invokes a route's handler with arguments. |
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* |
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* If you're using this library with Rade-DI, Yii Inject, DivineNii PHP Invoker, or Laravel DI, |
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* instead of using this class as callable, use the call method from the container's class. |
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* |
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* @author Divine Niiquaye Ibok <[email protected]> |
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*/ |
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class RouteInvoker |
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{ |
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/** @var ContainerInterface|null */ |
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private $container; |
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public function __construct(ContainerInterface $container = null) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* Auto-configure route handler parameters. |
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* |
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* @param mixed $handler |
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* @param array<string,mixed> $arguments |
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* |
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* @return mixed |
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*/ |
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public function __invoke($handler, array $arguments) |
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{ |
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if (\is_string($handler)) { |
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if (null !== $this->container && $this->container->has($handler)) { |
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$handler = $this->container->get($handler); |
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} elseif (\str_contains($handler, '@')) { |
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$handler = \explode('@', $handler, 2); |
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goto maybe_callable; |
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} elseif (\class_exists($handler)) { |
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$handlerRef = new \ReflectionClass($handler); |
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if ($handlerRef->hasMethod('__invoke')) { |
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$handler = [$handler, '__invoke']; |
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goto maybe_callable; |
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} |
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if (null === $constructor = $handlerRef->getConstructor()) { |
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return $handlerRef->newInstanceWithoutConstructor(); |
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} |
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return $handlerRef->newInstanceArgs($this->resolveParameters($constructor->getParameters(), $arguments)); |
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} |
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} |
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if ((\is_array($handler) && [0, 1] === \array_keys($handler)) && \is_string($handler[0])) { |
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maybe_callable: |
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if (null !== $this->container && $this->container->has($handler[0])) { |
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$handler[0] = $this->container->get($handler[0]); |
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} elseif (\class_exists($handler[0])) { |
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$handler[0] = (new \ReflectionClass($handler[0]))->newInstanceArgs([]); |
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} |
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} |
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if (\is_callable($handler)) { |
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$handlerRef = new \ReflectionFunction(\Closure::fromCallable($handler)); |
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} elseif (\is_object($handler)) { |
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return $handler; |
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} else { |
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throw new InvalidControllerException(\sprintf('Route has an invalid handler type of "%s".', \gettype($handler))); |
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} |
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return $handlerRef->invokeArgs($this->resolveParameters($handlerRef->getParameters(), $arguments)); |
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} |
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/** |
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* @param array<int,\ReflectionParameter> $refParameters |
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* @param array<string,mixed> $arguments |
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* |
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* @return array<int,mixed> |
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*/ |
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private function resolveParameters(array $refParameters, array $arguments): array |
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{ |
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$parameters = []; |
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foreach ($refParameters as $index => $parameter) { |
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$typeHint = $parameter->getType(); |
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if ($typeHint instanceof \ReflectionUnionType) { |
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foreach ($typeHint->getTypes() as $unionType) { |
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if (isset($arguments[$unionType->getName()])) { |
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$parameters[$index] = $arguments[$unionType->getName()]; |
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continue 2; |
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} |
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if (null !== $this->container && $this->container->has($unionType->getName())) { |
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$parameters[$index] = $this->container->get($unionType->getName()); |
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continue 2; |
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} |
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} |
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} elseif ($typeHint instanceof \ReflectionNamedType) { |
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if (isset($arguments[$typeHint->getName()])) { |
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$parameters[$index] = $arguments[$typeHint->getName()]; |
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continue; |
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} |
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if (null !== $this->container && $this->container->has($typeHint->getName())) { |
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$parameters[$index] = $this->container->get($typeHint->getName()); |
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continue; |
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} |
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} |
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if (isset($arguments[$parameter->getName()])) { |
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$parameters[$index] = $arguments[$parameter->getName()]; |
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} elseif (null !== $this->container && $this->container->has($parameter->getName())) { |
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$parameters[$index] = $this->container->get($parameter->getName()); |
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} elseif ($parameter->allowsNull() && !$parameter->isDefaultValueAvailable()) { |
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$parameters[$index] = null; |
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} |
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} |
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return $parameters; |
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} |
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} |
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divineniiquaye /
flight-routing
