1<?php 2/** 3 * webtrees: online genealogy 4 * Copyright (C) 2019 webtrees development team 5 * This program is free software: you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation, either version 3 of the License, or 8 * (at your option) any later version. 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. 15 */ 16declare(strict_types=1); 17 18namespace Fisharebest\Webtrees\Http\Middleware; 19 20use Fig\Http\Message\StatusCodeInterface; 21use Fisharebest\Webtrees\Webtrees; 22use Psr\Http\Message\ResponseInterface; 23use Psr\Http\Message\ServerRequestInterface; 24use Psr\Http\Server\MiddlewareInterface; 25use Psr\Http\Server\RequestHandlerInterface; 26 27/** 28 * Middleware to check whether the site is offline. 29 */ 30class CheckForMaintenanceMode implements MiddlewareInterface, StatusCodeInterface 31{ 32 /** 33 * @param ServerRequestInterface $request 34 * @param RequestHandlerInterface $handler 35 * 36 * @return ResponseInterface 37 */ 38 public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface 39 { 40 if (file_exists(Webtrees::OFFLINE_FILE)) { 41 $html = view('layouts/offline', [ 42 'message' => file_get_contents(Webtrees::OFFLINE_FILE), 43 'url' => (string) $request->getUri(), 44 ]); 45 46 return response($html, self::STATUS_SERVICE_UNAVAILABLE); 47 } 48 49 return $handler->handle($request); 50 } 51} 52