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 Psr\Http\Message\ResponseInterface; 22use Psr\Http\Message\ServerRequestInterface; 23use Psr\Http\Server\MiddlewareInterface; 24use Psr\Http\Server\RequestHandlerInterface; 25 26/** 27 * Middleware to check whether the site is offline. 28 */ 29class CheckForMaintenanceMode implements MiddlewareInterface 30{ 31 /** 32 * @param ServerRequestInterface $request 33 * @param RequestHandlerInterface $handler 34 * 35 * @return ResponseInterface 36 */ 37 public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface 38 { 39 $file = WT_ROOT . 'data/offline.txt'; 40 41 if (file_exists($file)) { 42 $html = view('layouts/offline', [ 43 'message' => file_get_contents($file), 44 'url' => $request->getUri(), 45 ]); 46 47 return response($html, StatusCodeInterface::STATUS_SERVICE_UNAVAILABLE); 48 } 49 50 return $handler->handle($request); 51 } 52} 53