97 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			97 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?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\FileLocatorInterface;
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use Symfony\Component\Config\Loader\DirectoryAwareLoaderInterface;
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use Symfony\Component\Config\Loader\Loader;
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use Symfony\Component\Config\Resource\DirectoryResource;
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use Symfony\Component\Routing\Exception\InvalidArgumentException;
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use Symfony\Component\Routing\RouteCollection;
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/**
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 * A loader that discovers controller classes in a directory that follows PSR-4.
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 *
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 * @author Alexander M. Turek <me@derrabus.de>
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 */
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final class Psr4DirectoryLoader extends Loader implements DirectoryAwareLoaderInterface
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{
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    private ?string $currentDirectory = null;
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    public function __construct(
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        private readonly FileLocatorInterface $locator,
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    ) {
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        // PSR-4 directory loader has no env-aware logic, so we drop the $env constructor parameter.
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        parent::__construct();
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    }
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    /**
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     * @param array{path: string, namespace: string} $resource
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     */
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    public function load(mixed $resource, ?string $type = null): ?RouteCollection
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    {
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        $path = $this->locator->locate($resource['path'], $this->currentDirectory);
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        if (!is_dir($path)) {
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            return new RouteCollection();
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        }
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        if (!preg_match('/^(?:[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+\\\)++$/', trim($resource['namespace'], '\\').'\\')) {
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            throw new InvalidArgumentException(\sprintf('Namespace "%s" is not a valid PSR-4 prefix.', $resource['namespace']));
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        }
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        return $this->loadFromDirectory($path, trim($resource['namespace'], '\\'));
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    }
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    public function supports(mixed $resource, ?string $type = null): bool
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    {
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        return 'attribute' === $type && \is_array($resource) && isset($resource['path'], $resource['namespace']);
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    }
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    public function forDirectory(string $currentDirectory): static
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    {
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        $loader = clone $this;
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        $loader->currentDirectory = $currentDirectory;
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        return $loader;
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    }
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    private function loadFromDirectory(string $directory, string $psr4Prefix): RouteCollection
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    {
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        $collection = new RouteCollection();
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        $collection->addResource(new DirectoryResource($directory, '/\.php$/'));
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        $files = iterator_to_array(new \RecursiveIteratorIterator(
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            new \RecursiveCallbackFilterIterator(
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                new \RecursiveDirectoryIterator($directory, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
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                fn (\SplFileInfo $current) => !str_starts_with($current->getBasename(), '.')
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            ),
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            \RecursiveIteratorIterator::SELF_FIRST
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        ));
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        usort($files, fn (\SplFileInfo $a, \SplFileInfo $b) => (string) $a > (string) $b ? 1 : -1);
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        /** @var \SplFileInfo $file */
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        foreach ($files as $file) {
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            if ($file->isDir()) {
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                $collection->addCollection($this->loadFromDirectory($file->getPathname(), $psr4Prefix.'\\'.$file->getFilename()));
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                continue;
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            }
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            if ('php' !== $file->getExtension() || !class_exists($className = $psr4Prefix.'\\'.$file->getBasename('.php')) || (new \ReflectionClass($className))->isAbstract()) {
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                continue;
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            }
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            $collection->addCollection($this->import($className, 'attribute'));
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        }
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        return $collection;
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    }
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}
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