AbstractNode.php

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<?php
namespace ‪TYPO3\CMS\Install\FolderStructure;
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
use ‪TYPO3\CMS\Core\Core\Environment;
use ‪TYPO3\CMS\Core\Messaging\FlashMessage;
 
abstract class ‪AbstractNode
{
    protected ‪$name = '';
 
    protected ‪$targetPermission;
 
    protected ‪$parent;
 
    protected ‪$children = [];
 
    public function ‪getName()
    {
        return ‪$this->name;
    }
 
    protected function ‪getTargetPermission()
    {
        return ‪$this->targetPermission;
    }
 
    protected function ‪setTargetPermission($permission)
    {
        // Normalize the permission string to "4 characters", padding with leading "0" if necessary:
        $permission = substr($permission, 0, 4);
        $permission = str_pad($permission, 4, '0', STR_PAD_LEFT);
        $this->targetPermission = $permission;
    }
 
    protected function ‪getChildren()
    {
        return ‪$this->children;
    }
 
    protected function ‪getParent()
    {
        return ‪$this->parent;
    }
 
    public function ‪getAbsolutePath()
    {
        return $this->‪getParent()->‪getAbsolutePath() . '/' . ‪$this->name;
    }
 
    public function ‪isWritable()
    {
        return $this->‪getParent()->‪isWritable();
    }
 
    protected function ‪exists()
    {
        if (@is_link($this->‪getAbsolutePath())) {
            return true;
        }
        return @file_exists($this->‪getAbsolutePath());
    }
 
    protected function ‪fixPermission(): FlashMessage
    {
        if ($this->‪isPermissionCorrect()) {
            throw new Exception(
                'Permission on ' . $this->‪getAbsolutePath() . ' are already ok',
                1366744035
            );
        }
        $result = @chmod($this->‪getAbsolutePath(), octdec($this->‪getTargetPermission()));
        if ($result === true) {
            return new FlashMessage(
                '',
                'Fixed permission on ' . $this->‪getRelativePathBelowSiteRoot() . '.'
            );
        }
        return new FlashMessage(
            'Permissions could not be changed to ' . $this->‪getTargetPermission()
                . '. This only is a problem if files and folders within this node cannot be written.',
            'Permission change on ' . $this->‪getRelativePathBelowSiteRoot() . ' not successful',
            ‪FlashMessage::NOTICE
        );
    }
 
    protected function ‪isPermissionCorrect()
    {
        if ($this->‪isWindowsOs()) {
            return true;
        }
        if ($this->‪getCurrentPermission() === $this->‪getTargetPermission()) {
            return true;
        }
        return false;
    }
 
    protected function ‪getCurrentPermission()
    {
        $permissions = decoct(fileperms($this->‪getAbsolutePath()));
        return substr($permissions, -4);
    }
 
    protected function ‪isWindowsOs()
    {
        return ‪Environment::isWindows();
    }
 
    protected function ‪getRelativePathBelowSiteRoot($path = null)
    {
        if ($path === null) {
            $path = $this->‪getAbsolutePath();
        }
        $publicPath = ‪Environment::getPublicPath();
        if (strpos($path, $publicPath, 0) !== 0) {
            throw new Exception\InvalidArgumentException(
                'Public path is not first part of given path',
                1366398198
            );
        }
        $relativePath = substr($path, strlen($publicPath), strlen($path));
        // Add a forward slash again, so we don't end up with an empty string
        if ($relativePath === '') {
            $relativePath = '/';
        }
        return $relativePath;
    }
}