90 lines
3.2 KiB
PHP
90 lines
3.2 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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 Symfony\Component\Routing\Loader;
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use Symfony\Component\Config\Loader\Loader;
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use Symfony\Component\Config\Resource\FileResource;
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use Symfony\Component\Routing\RouteCollection;
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/**
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* A route loader that calls a method on an object to load the routes.
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*
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* @author Ryan Weaver <ryan@knpuniversity.com>
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*/
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abstract class ObjectLoader extends Loader
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{
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/**
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* Returns the object that the method will be called on to load routes.
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*
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* For example, if your application uses a service container,
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* the $id may be a service id.
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*
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* @return object
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*/
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abstract protected function getObject(string $id);
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/**
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* Calls the object method that will load the routes.
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*
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* @param string $resource object_id::method
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* @param string|null $type The resource type
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*
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* @return RouteCollection
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*/
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public function load($resource, $type = null)
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{
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if (!preg_match('/^[^\:]+(?:::?(?:[^\:]+))?$/', $resource)) {
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throw new \InvalidArgumentException(sprintf('Invalid resource "%s" passed to the %s route loader: use the format "object_id::method" or "object_id" if your object class has an "__invoke" method.', $resource, \is_string($type) ? '"'.$type.'"' : 'object'));
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}
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if (1 === substr_count($resource, ':')) {
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$resource = str_replace(':', '::', $resource);
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@trigger_error(sprintf('Referencing object route loaders with a single colon is deprecated since Symfony 4.1. Use %s instead.', $resource), E_USER_DEPRECATED);
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}
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$parts = explode('::', $resource);
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$method = $parts[1] ?? '__invoke';
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$loaderObject = $this->getObject($parts[0]);
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if (!\is_object($loaderObject)) {
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throw new \TypeError(sprintf('%s:getObject() must return an object: %s returned', \get_class($this), \gettype($loaderObject)));
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}
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if (!\is_callable([$loaderObject, $method])) {
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throw new \BadMethodCallException(sprintf('Method "%s" not found on "%s" when importing routing resource "%s"', $method, \get_class($loaderObject), $resource));
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}
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$routeCollection = $loaderObject->$method($this);
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if (!$routeCollection instanceof RouteCollection) {
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$type = \is_object($routeCollection) ? \get_class($routeCollection) : \gettype($routeCollection);
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throw new \LogicException(sprintf('The %s::%s method must return a RouteCollection: %s returned', \get_class($loaderObject), $method, $type));
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}
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// make the object file tracked so that if it changes, the cache rebuilds
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$this->addClassResource(new \ReflectionClass($loaderObject), $routeCollection);
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return $routeCollection;
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}
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private function addClassResource(\ReflectionClass $class, RouteCollection $collection)
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{
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do {
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if (is_file($class->getFileName())) {
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$collection->addResource(new FileResource($class->getFileName()));
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}
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} while ($class = $class->getParentClass());
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}
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}
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