<?php /** * @copyright Copyright (C) 2010-2022, the Friendica project * * @license GNU AGPL version 3 or any later version * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. * */ use Friendica\Core\Logger; use Friendica\DI; use Friendica\Network\HTTPException\NotModifiedException; /* * This script can be included when the maintenance mode is on, which requires us to avoid any config call and * use the following hardcoded default */ $style = 'plus'; if (DI::mode()->has(\Friendica\App\Mode::MAINTENANCEDISABLED)) { $uid = $_REQUEST['puid'] ?? 0; $style = DI::pConfig()->get($uid, 'vier', 'style', DI::config()->get('vier', 'style', $style)); } $stylecss = ''; $modified = ''; $style = \Friendica\Util\Strings::sanitizeFilePathItem($style); foreach (['style', $style] as $file) { $stylecssfile = $THEMEPATH . DIRECTORY_SEPARATOR . $file .'.css'; if (file_exists($stylecssfile)) { $stylecss .= file_get_contents($stylecssfile); $stylemodified = filemtime($stylecssfile); if ($stylemodified > $modified) { $modified = $stylemodified; } } else { //TODO: use Logger::ERROR? Logger::notice('Error: missing file: "' . $stylecssfile .'" (userid: '. $uid .')'); } } $modified = gmdate('r', $modified); $etag = md5($stylecss); // Only send the CSS file if it was changed header('Cache-Control: public'); header('ETag: "'.$etag.'"'); header('Last-Modified: '.$modified); if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && isset($_SERVER['HTTP_IF_NONE_MATCH'])) { $cached_modified = gmdate('r', strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE'])); $cached_etag = str_replace(['"', "-gzip"], ['', ''], stripslashes($_SERVER['HTTP_IF_NONE_MATCH'])); if (($cached_modified == $modified) && ($cached_etag == $etag)) { throw new NotModifiedException(); } } echo $stylecss;