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https://github.com/firefly-iii/firefly-iii.git
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125 lines
4.1 KiB
PHP
125 lines
4.1 KiB
PHP
<?php
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/**
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* SecureHeaders.php
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* Copyright (c) 2019 james@firefly-iii.org
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*
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* This file is part of Firefly III (https://github.com/firefly-iii).
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*
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* This program 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
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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declare(strict_types=1);
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namespace FireflyIII\Http\Middleware;
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use Closure;
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use Exception;
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use Illuminate\Http\Request;
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/**
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*
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* Class SecureHeaders
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*/
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class SecureHeaders
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{
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/**
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* Handle an incoming request.
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*
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* @param Request $request
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* @param Closure $next
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*
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* @return mixed
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* @throws Exception
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*/
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public function handle(Request $request, Closure $next)
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{
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// generate and share nonce.
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$nonce = base64_encode(random_bytes(16));
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app('view')->share('JS_NONCE', $nonce);
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$response = $next($request);
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$trackingScriptSrc = $this->getTrackingScriptSource();
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$csp = [
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"default-src 'none'",
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"object-src 'none'",
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sprintf("script-src 'unsafe-eval' 'strict-dynamic' 'self' 'unsafe-inline' 'nonce-%1s' %2s", $nonce, $trackingScriptSrc),
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"style-src 'unsafe-inline' 'self'",
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"base-uri 'self'",
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"font-src 'self' data:",
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sprintf("connect-src 'self' %s", $trackingScriptSrc),
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sprintf("img-src data: 'strict-dynamic' 'self' *.tile.openstreetmap.org %s", $trackingScriptSrc),
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"manifest-src 'self'",
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];
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$route = $request->route();
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$customUrl = '';
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$authGuard = (string)config('firefly.authentication_guard');
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$logoutUrl = (string)config('firefly.custom_logout_url');
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if ('remote_user_guard' === $authGuard && '' !== $logoutUrl) {
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$customUrl = $logoutUrl;
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}
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if (null !== $route && 'oauth/authorize' !== $route->uri) {
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$csp[] = sprintf("form-action 'self' %s", $customUrl);
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}
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$featurePolicies = [
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"geolocation 'none'",
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"midi 'none'",
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//"notifications 'none'",
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//"push 'self'",
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"sync-xhr 'self'",
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"microphone 'none'",
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"camera 'none'",
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"magnetometer 'none'",
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"gyroscope 'none'",
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//"speaker 'none'",
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//"vibrate 'none'",
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"fullscreen 'self'",
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"payment 'none'",
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];
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$disableFrameHeader = config('firefly.disable_frame_header');
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$disableCSP = config('firefly.disable_csp_header');
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if (false === $disableFrameHeader) {
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$response->header('X-Frame-Options', 'deny');
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}
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if (false === $disableCSP && !$response->headers->has('Content-Security-Policy')) {
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$response->header('Content-Security-Policy', implode('; ', $csp));
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}
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$response->header('X-XSS-Protection', '1; mode=block');
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$response->header('X-Content-Type-Options', 'nosniff');
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$response->header('Referrer-Policy', 'no-referrer');
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$response->header('X-Permitted-Cross-Domain-Policies', 'none');
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$response->header('X-Robots-Tag', 'none');
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$response->header('Feature-Policy', implode('; ', $featurePolicies));
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return $response;
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}
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/**
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* Return part of a CSP header allowing scripts from Matomo.
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*
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* @return string
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*/
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private function getTrackingScriptSource(): string
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{
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if ('' !== (string)config('firefly.tracker_site_id') && '' !== (string)config('firefly.tracker_url')) {
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return (string)config('firefly.tracker_url');
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}
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return '';
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}
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}
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