Local.php

<?php

namespace Drupal\Core\FileTransfer;

use Drupal\Core\DependencyInjection\DependencySerializationTrait;
use Drupal\Core\File\FileSystemInterface;

/**
 * Defines the local connection class for copying files as the httpd user.
 */
class Local extends FileTransfer implements ChmodInterface {
    use DependencySerializationTrait;
    
    /**
     * The file system service.
     *
     * @var \Drupal\Core\File\FileSystemInterface
     */
    protected $fileSystem;
    
    /**
     * {@inheritdoc}
     */
    public function __construct($jail, FileSystemInterface $file_system = NULL) {
        parent::__construct($jail);
        if (!isset($file_system)) {
            @trigger_error('The $file_system parameter was added in Drupal 8.8.0 and will be required in 9.0.0. See https://www.drupal.org/node/3021434.', E_USER_DEPRECATED);
            $file_system = \Drupal::service('file_system');
        }
        $this->fileSystem = $file_system;
    }
    
    /**
     * {@inheritdoc}
     */
    public function connect() {
        // No-op
    }
    
    /**
     * {@inheritdoc}
     */
    public static function factory($jail, $settings) {
        return new Local($jail, \Drupal::service('file_system'));
    }
    
    /**
     * {@inheritdoc}
     */
    protected function copyFileJailed($source, $destination) {
        if (@(!copy($source, $destination))) {
            throw new FileTransferException('Cannot copy %source to %destination.', NULL, [
                '%source' => $source,
                '%destination' => $destination,
            ]);
        }
    }
    
    /**
     * {@inheritdoc}
     */
    protected function createDirectoryJailed($directory) {
        if (!is_dir($directory) && @(!mkdir($directory, 0777, TRUE))) {
            throw new FileTransferException('Cannot create directory %directory.', NULL, [
                '%directory' => $directory,
            ]);
        }
    }
    
    /**
     * {@inheritdoc}
     */
    protected function removeDirectoryJailed($directory) {
        if (!is_dir($directory)) {
            // Programmer error assertion, not something we expect users to see.
            throw new FileTransferException('removeDirectoryJailed() called with a path (%directory) that is not a directory.', NULL, [
                '%directory' => $directory,
            ]);
        }
        
        /** @var \Drupal\Core\File\FileSystemInterface $file_system */
        $file_system = \Drupal::service('file_system');
        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($directory, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::CHILD_FIRST) as $filename => $file) {
            if ($file->isDir()) {
                if (@(!$file_system->rmdir($filename))) {
                    throw new FileTransferException('Cannot remove directory %directory.', NULL, [
                        '%directory' => $filename,
                    ]);
                }
            }
            elseif ($file->isFile()) {
                if (@(!$this->fileSystem
                    ->unlink($filename))) {
                    throw new FileTransferException('Cannot remove file %file.', NULL, [
                        '%file' => $filename,
                    ]);
                }
            }
        }
        if (@(!$file_system->rmdir($directory))) {
            throw new FileTransferException('Cannot remove directory %directory.', NULL, [
                '%directory' => $directory,
            ]);
        }
    }
    
    /**
     * {@inheritdoc}
     */
    protected function removeFileJailed($file) {
        if (@(!$this->fileSystem
            ->unlink($file))) {
            throw new FileTransferException('Cannot remove file %file.', NULL, [
                '%file' => $file,
            ]);
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public function isDirectory($path) {
        return is_dir($path);
    }
    
    /**
     * {@inheritdoc}
     */
    public function isFile($path) {
        return is_file($path);
    }
    
    /**
     * {@inheritdoc}
     */
    public function chmodJailed($path, $mode, $recursive) {
        if ($recursive && is_dir($path)) {
            foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($path, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::SELF_FIRST) as $filename => $file) {
                if (@(!chmod($filename, $mode))) {
                    throw new FileTransferException('Cannot chmod %path.', NULL, [
                        '%path' => $filename,
                    ]);
                }
            }
        }
        elseif (@(!chmod($path, $mode))) {
            throw new FileTransferException('Cannot chmod %path.', NULL, [
                '%path' => $path,
            ]);
        }
    }

}