1<?php 2 3/** 4 * webtrees: online genealogy 5 * Copyright (C) 2019 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 <http://www.gnu.org/licenses/>. 16 */ 17declare(strict_types=1); 18 19namespace Fisharebest\Webtrees\Http\Middleware; 20 21use Psr\Http\Message\ResponseInterface; 22use Psr\Http\Message\ServerRequestInterface; 23use Psr\Http\Server\RequestHandlerInterface; 24 25use function explode; 26 27/** 28 * Middleware to detect the client's IP address. 29 */ 30class ClientIp extends \Middlewares\ClientIp 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 // The configuration comes from config.ini.php, via request attributes. 41 $trusted_headers = $this->getCommaSeparatedAttribute($request, 'trusted_headers'); 42 $trusted_proxies = $this->getCommaSeparatedAttribute($request, 'trusted_proxies'); 43 44 $this->proxy($trusted_proxies, $trusted_headers); 45 46 return parent::process($request, $handler); 47 } 48 49 /** 50 * @param ServerRequestInterface $request 51 * @param string $attribute 52 * 53 * @return string[] 54 */ 55 private function getCommaSeparatedAttribute(ServerRequestInterface $request, string $attribute): array 56 { 57 $value = $request->getAttribute($attribute); 58 59 if ($value === null) { 60 return []; 61 } 62 63 return explode(',', $value); 64 } 65} 66