n1ed-8.x-2.31/src/FlmngrLegacy/lib/action/ActionUploadInit.php

<?php

/**
 * File Uploader Server package
 * Developer: N1ED
 * Website: https://n1ed.com/
 * License: GNU General Public License Version 3 or later
 **/

namespace Drupal\n1ed\FlmngrLegacy\lib\action;

use Drupal\n1ed\FlmngrLegacy\lib\action\resp\Message;
use Drupal\n1ed\FlmngrLegacy\lib\action\resp\RespUploadInit;
use Drupal\n1ed\FlmngrLegacy\lib\MessageException;

class ActionUploadInit extends AAction
{
    public function getName()
    {
        return 'uploadInit';
    }

    public function run($req)
    {
        $alphabeth = 'abcdefghijklmnopqrstuvwxyz0123456789';
        do {
            $id = '';
            for ($i = 0; $i < 6; $i++) {
                $charNumber = rand(0, strlen($alphabeth) - 1);
                $id .= substr($alphabeth, $charNumber, 1);
            }
            $dir = $this->m_config->getTmpDir() . '/' . $id;
        } while (file_exists($dir));

        if (!mkdir($dir, 0777, TRUE)) {
            throw new MessageException(
                Message::createMessage(Message::UNABLE_TO_CREATE_UPLOAD_DIR)
            );
        }

        return new RespUploadInit($id, $this->m_config);
    }
}