9.5/_enable_file_service_8php_source.html

<?php

namespace ‪TYPO3\CMS\Install\Service;


/*

 * 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\Utility\GeneralUtility;


class ‪EnableFileService

{

    const ‪INSTALL_TOOL_ENABLE_FILE_PATH = 'typo3conf/ENABLE_INSTALL_TOOL';


    const ‪FIRST_INSTALL_FILE_PATH = 'FIRST_INSTALL';


    const ‪INSTALL_TOOL_ENABLE_FILE_LIFETIME = 3600;


    public static function ‪isFirstInstallAllowed()

    {

        $files = ‪self::getFirstInstallFilePaths();

        if (!empty($files)) {

            return true;

        }

        return false;

    }


    public static function ‪createInstallToolEnableFile()

    {

        $installEnableFilePath = ‪self::getInstallToolEnableFilePath();

        if (!is_file($installEnableFilePath)) {

            $result = touch($installEnableFilePath);

        } else {

            $result = true;

            ‪self::extendInstallToolEnableFileLifetime();

        }

        GeneralUtility::fixPermissions($installEnableFilePath);

        return $result;

    }


    public static function ‪removeInstallToolEnableFile()

    {

        return unlink(self::getInstallToolEnableFilePath());

    }


    public static function ‪removeFirstInstallFile()

    {

        $result = true;

        $files = ‪self::getFirstInstallFilePaths();

        foreach ($files as $file) {

            $result = unlink(‪Environment::getPublicPath() . '/' . $file) && $result;

        }

        return $result;

    }


    public static function ‪installToolEnableFileExists()

    {

        return @is_file(self::getInstallToolEnableFilePath());

    }


    public static function ‪checkInstallToolEnableFile()

    {

        if (!self::installToolEnableFileExists()) {

            return false;

        }

        if (!self::isInstallToolEnableFilePermanent()) {

            if (self::installToolEnableFileLifetimeExpired()) {

                ‪self::removeInstallToolEnableFile();

                return false;

            }

            ‪self::extendInstallToolEnableFileLifetime();

        }

        return true;

    }


    public static function ‪isInstallToolEnableFilePermanent()

    {

        if (self::installToolEnableFileExists()) {

            $content = @file_get_contents(self::getInstallToolEnableFilePath());

            if (strpos($content, 'KEEP_FILE') !== false) {

                return true;

            }

        }

        return false;

    }


    public static function ‪installToolEnableFileLifetimeExpired()

    {

        if (time() - @filemtime(self::getInstallToolEnableFilePath()) > self::INSTALL_TOOL_ENABLE_FILE_LIFETIME) {

            return true;

        }

        return false;

    }


    protected static function ‪extendInstallToolEnableFileLifetime()

    {

        $enableFile = ‪self::getInstallToolEnableFilePath();

        // Extend the age of the ENABLE_INSTALL_TOOL file by one hour

        if (is_file($enableFile)) {

            $couldTouch = @touch($enableFile);

            if (!$couldTouch) {

                // If we can't remove the creation method will call us again.

                if (self::removeInstallToolEnableFile()) {

                    ‪self::createInstallToolEnableFile();

                }

            }

        }

    }


    protected static function ‪getInstallToolEnableFilePath()

    {

        return ‪Environment::getPublicPath() . '/' . ‪self::INSTALL_TOOL_ENABLE_FILE_PATH;

    }


    protected static function ‪getFirstInstallFilePaths()

    {

        $files = array_filter(scandir(‪Environment::getPublicPath() . '/'), function ($file) {

            return @is_file(‪Environment::getPublicPath() . '/' . $file) && preg_match('~^' . self::FIRST_INSTALL_FILE_PATH . '.*~i', $file);

        });

        return $files;

    }

}