1<?php 2 3/** 4 * webtrees: online genealogy 5 * Copyright (C) 2021 webtrees development team 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 3 of the License, or 9 * (at your option) any later version. 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * You should have received a copy of the GNU General Public License 15 * along with this program. If not, see <https://www.gnu.org/licenses/>. 16 */ 17 18declare(strict_types=1); 19 20namespace Fisharebest\Webtrees\Http\Middleware; 21 22use Fig\Http\Message\StatusCodeInterface; 23use Fisharebest\Webtrees\Webtrees; 24use Psr\Http\Message\ResponseInterface; 25use Psr\Http\Message\ServerRequestInterface; 26use Psr\Http\Server\MiddlewareInterface; 27use Psr\Http\Server\RequestHandlerInterface; 28 29/** 30 * Middleware to check whether the site is offline. 31 */ 32class CheckForMaintenanceMode implements MiddlewareInterface, StatusCodeInterface 33{ 34 /** 35 * @param ServerRequestInterface $request 36 * @param RequestHandlerInterface $handler 37 * 38 * @return ResponseInterface 39 */ 40 public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface 41 { 42 if (file_exists(Webtrees::OFFLINE_FILE)) { 43 $html = view('layouts/offline', [ 44 'message' => file_get_contents(Webtrees::OFFLINE_FILE), 45 'url' => $request->getUri(), 46 ]); 47 48 return response($html, StatusCodeInterface::STATUS_SERVICE_UNAVAILABLE); 49 } 50 51 return $handler->handle($request); 52 } 53} 54