DelegatingFilesystemFactory.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\Filesystem\Provider;
 
use ILIAS\Filesystem\Decorator\FilesystemWhitelistDecorator;
use ILIAS\Filesystem\Decorator\ReadOnlyDecorator;
use ILIAS\Filesystem\Filesystem;
use ILIAS\Filesystem\Provider\Configuration\LocalConfig;
use ILIAS\Filesystem\Provider\FlySystem\FlySystemFilesystemFactory;
use ILIAS\Filesystem\Security\Sanitizing\FilenameSanitizer;
 
/******************************************************************************
 *
 * This file is part of ILIAS, a powerful learning management system.
 *
 * ILIAS is licensed with the GPL-3.0, you should have received a copy
 * of said license along with the source code.
 *
 * If this is not the case or you just want to try ILIAS, you'll find
 * us at:
 *      https://www.ilias.de
 *      https://github.com/ILIAS-eLearning
 *
 *****************************************************************************/
final class DelegatingFilesystemFactory implements FilesystemFactory
{
    private FlySystemFilesystemFactory $implementation;
    private FilenameSanitizer $sanitizer;
 
 
    public function __construct(FilenameSanitizer $sanitizer)
    {
 
        /*
         * ---------- ABSTRACTION SWITCH -------------
         * Change the factory to switch to another filesystem abstraction!
         * current: FlySystem from the php league
         * -------------------------------------------
         */
        $this->implementation = new FlySystemFilesystemFactory();
 
        $this->sanitizer = $sanitizer;
    }
 
 
    public function getLocal(LocalConfig $config, bool $read_only = false): Filesystem
    {
        if ($read_only) {
            return new ReadOnlyDecorator(new FilesystemWhitelistDecorator($this->implementation->getLocal($config), $this->sanitizer));
        } else {
            return new FilesystemWhitelistDecorator($this->implementation->getLocal($config), $this->sanitizer);
        }
    }
}