Hugo Sales
aef1fac536
Ensure unwanted enviorment variables are removed from the actual global environment rather than just the `$_ENV` superglobal variable Disable stream wrappers, as this is an unexpected feature for most developers and can be exploited. For instance, `phar://` can be used to override any class and thus provide code execution (through `__wakeup` or `__costruct`, for instance). Not a complete solution, as `php://` can also be abused, but we can't disable it as it gets used _somewhere_ in our dependencies
79 lines
2.8 KiB
PHP
Executable File
79 lines
2.8 KiB
PHP
Executable File
<?php
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declare(strict_types = 1);
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/*
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* This file is part of GNU social - https://www.gnu.org/software/social
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*
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* GNU social is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GNU social is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with GNU social. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* GNU social's true web entry point, bootstraps Symfony's configuration and instantiates our Kernel
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*
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* @package GNUsocial
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* @category Framework
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*
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* @author Hugo Sales <hugo@hsal.es>
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* @author Diogo Peralta Cordeiro <mail@diogo.site>
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* @copyright 2020-2021 Free Software Foundation, Inc http://www.fsf.org
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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use App\CacheKernel;
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use App\Kernel;
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use App\Core\Security;
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use Symfony\Component\ErrorHandler\Debug;
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use Symfony\Component\HttpFoundation\Request;
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require \dirname(__DIR__) . '/config/bootstrap.php';
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if ($_SERVER['APP_DEBUG']) {
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umask(0000);
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Debug::enable();
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}
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// When a request passes through a proxy, certain request information is sent using either
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// the standard Forwarded header or X-Forwarded-* headers.
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// Therefore, if the user configures trusted proxy IPs, we trust these headers.
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if ($trustedProxies = $_ENV['TRUSTED_PROXIES'] ?? $_SERVER['TRUSTED_PROXIES'] ?? false) {
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Request::setTrustedProxies(
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explode(',', $trustedProxies),
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Request::HEADER_FORWARDED | Request::HEADER_X_FORWARDED_FOR | Request::HEADER_X_FORWARDED_HOST | Request::HEADER_X_FORWARDED_PORT | Request::HEADER_X_FORWARDED_PROTO,
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);
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}
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// For enhanced security while using Request, here we define the trusted hosts.
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// If the incoming request’s hostname doesn't match one of the regular expressions in
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// this list, the application won’t respond and the user will receive a 400 response.
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if ($trustedHosts = $_ENV['TRUSTED_HOSTS'] ?? $_SERVER['TRUSTED_HOSTS'] ?? false) {
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Request::setTrustedHosts([$trustedHosts]);
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}
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$kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
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// Wrap the default Kernel with the CacheKernel one in 'prod' environment
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if ('prod' === $kernel->getEnvironment() || isset($_ENV['CONFIG_USE_CACHE_KERNEL'])) {
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$kernel = new CacheKernel($kernel);
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}
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$request = Request::createFromGlobals();
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Security::harden();
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$response = $kernel->handle($request);
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$response->send();
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$kernel->terminate($request, $response);
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