MimeTypePass.php

<?php

namespace Drupal\Core\DependencyInjection\Compiler;

use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Exception\LogicException;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesserInterface as LegacyMimeTypeGuesserInterface;
use Symfony\Component\Mime\MimeTypeGuesserInterface;

/**
 * Adds @mime_type_guesser tagged services to handle forwards compatibility.
 *
 * @internal
 *
 * @deprecated in drupal:9.1.0 and is removed from drupal:10.0.0. No direct
 * replacement is provided.
 *
 * @see https://www.drupal.org/node/3133341
 */
class MimeTypePass implements CompilerPassInterface {
    
    /**
     * {@inheritdoc}
     */
    public function process(ContainerBuilder $container) {
        $consumer = $container->getDefinition('file.mime_type.guesser');
        $tag = 'mime_type_guesser';
        $interface = MimeTypeGuesserInterface::class;
        $deprecated_interface = LegacyMimeTypeGuesserInterface::class;
        // Find all tagged handlers.
        $handlers = [];
        foreach ($container->findTaggedServiceIds($tag) as $id => $attributes) {
            // Validate the interface.
            $handler = $container->getDefinition($id);
            if (!is_subclass_of($handler->getClass(), $interface)) {
                // Special handling for $deprecated_interface.
                if (!is_subclass_of($handler->getClass(), $deprecated_interface)) {
                    throw new LogicException("Service '{$id}' does not implement {$interface}.");
                }
            }
            $handlers[$id] = $attributes[0]['priority'] ?? 0;
            $interfaces[$id] = $handler->getClass();
        }
        if (empty($handlers)) {
            throw new LogicException(sprintf("At least one service tagged with '%s' is required.", $tag));
        }
        // Sort all handlers by priority.
        arsort($handlers, SORT_NUMERIC);
        // Add a method call for each handler to the consumer service
        // definition.
        foreach ($handlers as $id => $priority) {
            $arguments = [
                new Reference($id),
                $priority,
            ];
            if (is_subclass_of($interfaces[$id], $interface)) {
                $consumer->addMethodCall('addMimeTypeGuesser', $arguments);
            }
            else {
                $consumer->addMethodCall('addGuesser', $arguments);
            }
        }
    }

}