AbstractStandaloneMessage.php

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<?php
namespace TYPO3\CMS\Core\Messaging;

use TYPO3\CMS\Core\Service\MarkerBasedTemplateService;
use TYPO3\CMS\Core\Utility\GeneralUtility;

/*
 * 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!
 */

abstract class AbstractStandaloneMessage extends AbstractMessage
{
    protected $htmlTemplate;

    protected $defaultMarkers = [];

    protected $markers = [];

    public function __construct($message = '', $title = '', $severity = AbstractMessage::ERROR)
    {
        if (!empty($message)) {
            $this->setMessage($message);
        }
        $this->setTitle(!empty($title) ? $title : 'Error!');
        $this->setSeverity($severity);
    }

    public function setMarkers(array $markers)
    {
        $this->markers = array_merge($this->markers, $markers);
    }

    protected function getDefaultMarkers()
    {
        $classes = [
            self::NOTICE => 'notice',
            self::INFO => 'information',
            self::OK => 'ok',
            self::WARNING => 'warning',
            self::ERROR => 'error'
        ];
        $defaultMarkers = [
            '###CSS_CLASS###' => $classes[$this->severity],
            '###TITLE###' => $this->title,
            '###MESSAGE###' => $this->message,
            // Avoid calling TYPO3_SITE_URL here to get the base URL as it might be that we output an exception message with
            // invalid trusted host, which would lead to a nested exception! See: #30377
            // Instead we calculate the relative path to the document root without involving HTTP request parameters.
            '###BASEURL###' => substr(PATH_site, strlen(GeneralUtility::getIndpEnv('TYPO3_DOCUMENT_ROOT'))),
            '###TYPO3_mainDir###' => TYPO3_mainDir,
            '###TYPO3_copyright_year###' => TYPO3_copyright_year
        ];
        return $defaultMarkers;
    }

    public function getHtmlTemplate()
    {
        if (!$this->htmlTemplate) {
            throw new \RuntimeException('No HTML template file has been defined, yet', 1314390127);
        }
        return $this->htmlTemplate;
    }

    public function setHtmlTemplate($htmlTemplate)
    {
        $this->htmlTemplate = PATH_site . $htmlTemplate;
        if (!file_exists($this->htmlTemplate)) {
            throw new \RuntimeException('Template file "' . $this->htmlTemplate . '" not found', 1312830504);
        }
    }

    public function render()
    {
        $markers = array_merge($this->getDefaultMarkers(), $this->markers);
        $content = GeneralUtility::getUrl($this->htmlTemplate);
        $templateService = GeneralUtility::makeInstance(MarkerBasedTemplateService::class);
        $content = $templateService->substituteMarkerArray($content, $markers, '', false, true);
        return $content;
    }

    public function output()
    {
        $content = $this->render();
        echo $content;
    }
}