DirectoryNode.php

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<?php
 
/*
 * 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!
 */
 
namespace ‪TYPO3\CMS\Install\FolderStructure;
 
use ‪TYPO3\CMS\Core\Messaging\FlashMessage;
use ‪TYPO3\CMS\Core\Utility\StringUtility;
use ‪TYPO3\CMS\Install\FolderStructure\Exception\InvalidArgumentException;
 
class ‪DirectoryNode extends ‪AbstractNode implements ‪NodeInterface
{
    protected ‪$targetPermission = '2775';
 
    public function ‪__construct(array $structure, ‪NodeInterface ‪$parent = null)
    {
        if (‪$parent === null) {
            throw new ‪InvalidArgumentException(
                'Node must have parent',
                1366222203
            );
        }
        $this->parent = ‪$parent;
 
        // Ensure name is a single segment, but not a path like foo/bar or an absolute path /foo
        if (strpos($structure['name'], '/') !== false) {
            throw new ‪InvalidArgumentException(
                'Directory name must not contain forward slash',
                1366226639
            );
        }
        $this->name = $structure['name'];
 
        if (isset($structure['targetPermission'])) {
            $this->‪setTargetPermission($structure['targetPermission']);
        }
 
        if (array_key_exists('children', $structure)) {
            $this->‪createChildren($structure['children']);
        }
    }
 
    public function ‪getStatus(): array
    {
        $result = [];
        if (!$this->‪exists()) {
            $status = new ‪FlashMessage(
                'The Install Tool can try to create it',
                'Directory ' . $this->‪getRelativePathBelowSiteRoot() . ' does not exist',
                ‪FlashMessage::WARNING
            );
            $result[] = $status;
        } else {
            $result = $this->‪getSelfStatus();
        }
        $result = array_merge($result, $this->‪getChildrenStatus());
        return $result;
    }
 
    public function ‪isWritable()
    {
        $result = true;
        if (!$this->‪exists()) {
            $result = false;
        } elseif (!$this->‪canFileBeCreated()) {
            $result = false;
        }
        return $result;
    }
 
    public function ‪fix(): array
    {
        $result = $this->‪fixSelf();
        foreach ($this->children as $child) {
            $result = array_merge($result, $child->fix());
        }
        return $result;
    }
 
    protected function ‪fixSelf()
    {
        $result = [];
        if (!$this->‪exists()) {
            $resultCreateDirectory = $this->‪createDirectory();
            $result[] = $resultCreateDirectory;
            if ($resultCreateDirectory->getSeverity() === ‪FlashMessage::OK &&
                !$this->isPermissionCorrect()
            ) {
                $result[] = $this->‪fixPermission();
            }
        } elseif (!$this->‪isWritable()) {
            // If directory is not writable, we might have permissions to fix that
            // Try it:
            $result[] = $this->‪fixPermission();
        } elseif (!$this->‪isDirectory()) {
            $fileType = @filetype($this->‪getAbsolutePath());
            if ($fileType) {
                $messageBody =
                    'The target ' . $this->‪getRelativePathBelowSiteRoot() . ' should be a directory,' .
                    ' but is of type ' . $fileType . '. This cannot be fixed automatically. Please investigate.'
                ;
            } else {
                $messageBody =
                    'The target ' . $this->‪getRelativePathBelowSiteRoot() . ' should be a directory,' .
                    ' but is of unknown type, probably because an upper level directory does not exist. Please investigate.'
                ;
            }
            $result[] = new ‪FlashMessage(
                $messageBody,
                'Path ' . $this->‪getRelativePathBelowSiteRoot() . ' is not a directory',
                ‪FlashMessage::ERROR
            );
        }
        return $result;
    }
 
    protected function ‪createDirectory(): ‪FlashMessage
    {
        if ($this->‪exists()) {
            throw new ‪Exception(
                'Directory ' . $this->‪getAbsolutePath() . ' already exists',
                1366740091
            );
        }
        $result = @mkdir($this->‪getAbsolutePath());
        if ($result === true) {
            return new ‪FlashMessage(
                '',
                'Directory ' . $this->‪getRelativePathBelowSiteRoot() . ' successfully created.'
            );
        }
        return new ‪FlashMessage(
            'The target directory could not be created. There is probably a'
                . ' group or owner permission problem on the parent directory.',
            'Directory ' . $this->‪getRelativePathBelowSiteRoot() . ' not created!',
            ‪FlashMessage::ERROR
        );
    }
 
    protected function ‪getSelfStatus(): array
    {
        $result = [];
        if (!$this->‪isDirectory()) {
            $result[] = new ‪FlashMessage(
                'Directory ' . $this->‪getRelativePathBelowSiteRoot() . ' should be a directory,'
                    . ' but is of type ' . filetype($this->‪getAbsolutePath()),
                $this->‪getRelativePathBelowSiteRoot() . ' is not a directory',
                ‪FlashMessage::ERROR
            );
        } elseif (!$this->‪isWritable()) {
            $result[] = new ‪FlashMessage(
                'Path ' . $this->‪getAbsolutePath() . ' exists, but no file underneath it'
                    . ' can be created.',
                'Directory ' . $this->‪getRelativePathBelowSiteRoot() . ' is not writable',
                ‪FlashMessage::ERROR
            );
        } elseif (!$this->‪isPermissionCorrect()) {
            $result[] = new ‪FlashMessage(
                'Default configured permissions are ' . $this->‪getTargetPermission()
                    . ' but current permissions are ' . $this->‪getCurrentPermission(),
                'Directory ' . $this->‪getRelativePathBelowSiteRoot() . ' permissions mismatch',
                ‪FlashMessage::NOTICE
            );
        } else {
            $result[] = new ‪FlashMessage(
                'Is a directory with the configured permissions of ' . $this->‪getTargetPermission(),
                'Directory ' . $this->‪getRelativePathBelowSiteRoot()
            );
        }
        return $result;
    }
 
    protected function ‪getChildrenStatus(): array
    {
        $result = [];
        foreach ($this->children as $child) {
            $result = array_merge($result, $child->getStatus());
        }
        return $result;
    }
 
    protected function ‪canFileBeCreated()
    {
        $testFileName = ‪StringUtility::getUniqueId('installToolTest_');
        $result = @touch($this->‪getAbsolutePath() . '/' . $testFileName);
        if ($result === true) {
            unlink($this->‪getAbsolutePath() . '/' . $testFileName);
        }
        return $result;
    }
 
    protected function ‪isDirectory()
    {
        $path = $this->‪getAbsolutePath();
        return !@is_link($path) && @is_dir($path);
    }
 
    protected function ‪createChildren(array $structure)
    {
        foreach ($structure as $child) {
            if (!array_key_exists('type', $child)) {
                throw new ‪InvalidArgumentException(
                    'Child must have type',
                    1366222204
                );
            }
            if (!array_key_exists('name', $child)) {
                throw new ‪InvalidArgumentException(
                    'Child must have name',
                    1366222205
                );
            }
            ‪$name = $child['name'];
            foreach ($this->children as $existingChild) {
                if ($existingChild->getName() === ‪$name) {
                    throw new ‪InvalidArgumentException(
                        'Child name must be unique',
                        1366222206
                    );
                }
            }
            $this->children[] = new $child['type']($child, $this);
        }
    }
}