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nickvergessennickvergessen
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Merge pull request #36928 from nextcloud/techdebt/noid/bruteforce-protection-attribute
feat(middleware): Migrate BruteForceProtection annotation to PHP Attribute and allow multiple
2 parents 4d4a223 + 2b49861 commit bfc37af

7 files changed

Lines changed: 307 additions & 81 deletions

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‎lib/composer/composer/autoload_classmap.php‎

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@@ -35,6 +35,7 @@
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'OCP\\AppFramework\\Db\\QBMapper' => $baseDir . '/lib/public/AppFramework/Db/QBMapper.php',
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'OCP\\AppFramework\\Db\\TTransactional' => $baseDir . '/lib/public/AppFramework/Db/TTransactional.php',
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'OCP\\AppFramework\\Http' => $baseDir . '/lib/public/AppFramework/Http.php',
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'OCP\\AppFramework\\Http\\Attribute\\BruteForceProtection' => $baseDir . '/lib/public/AppFramework/Http/Attribute/BruteForceProtection.php',
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'OCP\\AppFramework\\Http\\Attribute\\UseSession' => $baseDir . '/lib/public/AppFramework/Http/Attribute/UseSession.php',
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'OCP\\AppFramework\\Http\\ContentSecurityPolicy' => $baseDir . '/lib/public/AppFramework/Http/ContentSecurityPolicy.php',
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'OCP\\AppFramework\\Http\\DataDisplayResponse' => $baseDir . '/lib/public/AppFramework/Http/DataDisplayResponse.php',

‎lib/composer/composer/autoload_static.php‎

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@@ -68,6 +68,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
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'OCP\\AppFramework\\Db\\QBMapper' => __DIR__ . '/../../..' . '/lib/public/AppFramework/Db/QBMapper.php',
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'OCP\\AppFramework\\Db\\TTransactional' => __DIR__ . '/../../..' . '/lib/public/AppFramework/Db/TTransactional.php',
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'OCP\\AppFramework\\Http' => __DIR__ . '/../../..' . '/lib/public/AppFramework/Http.php',
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'OCP\\AppFramework\\Http\\Attribute\\BruteForceProtection' => __DIR__ . '/../../..' . '/lib/public/AppFramework/Http/Attribute/BruteForceProtection.php',
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'OCP\\AppFramework\\Http\\Attribute\\UseSession' => __DIR__ . '/../../..' . '/lib/public/AppFramework/Http/Attribute/UseSession.php',
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'OCP\\AppFramework\\Http\\ContentSecurityPolicy' => __DIR__ . '/../../..' . '/lib/public/AppFramework/Http/ContentSecurityPolicy.php',
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'OCP\\AppFramework\\Http\\DataDisplayResponse' => __DIR__ . '/../../..' . '/lib/public/AppFramework/Http/DataDisplayResponse.php',

‎lib/private/AppFramework/DependencyInjection/DIContainer.php‎

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@@ -292,7 +292,8 @@ public function __construct(string $appName, array $urlParams = [], ServerContai
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new OC\AppFramework\Middleware\Security\BruteForceMiddleware(
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$c->get(IControllerMethodReflector::class),
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$c->get(OC\Security\Bruteforce\Throttler::class),
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$c->get(IRequest::class)
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$c->get(IRequest::class),
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$c->get(LoggerInterface::class)
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)
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);
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$dispatcher->registerMiddleware(

‎lib/private/AppFramework/Middleware/Security/BruteForceMiddleware.php‎

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@@ -3,6 +3,7 @@
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2023 Joas Schilling <coding@schilljs.com>
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* @copyright Copyright (c) 2017 Lukas Reschke <lukas@statuscode.ch>
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*
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
@@ -31,13 +32,16 @@
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use OC\Security\Bruteforce\Throttler;
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use OCP\AppFramework\Controller;
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use OCP\AppFramework\Http;
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use OCP\AppFramework\Http\Attribute\BruteForceProtection;
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use OCP\AppFramework\Http\Response;
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use OCP\AppFramework\Http\TooManyRequestsResponse;
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use OCP\AppFramework\Middleware;
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use OCP\AppFramework\OCS\OCSException;
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use OCP\AppFramework\OCSController;
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use OCP\IRequest;
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use OCP\Security\Bruteforce\MaxDelayReached;
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use Psr\Log\LoggerInterface;
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use ReflectionMethod;
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/**
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* Class BruteForceMiddleware performs the bruteforce protection for controllers
@@ -47,16 +51,12 @@
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* @package OC\AppFramework\Middleware\Security
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*/
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class BruteForceMiddleware extends Middleware {
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private ControllerMethodReflector $reflector;
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private Throttler $throttler;
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private IRequest $request;
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public function __construct(ControllerMethodReflector $controllerMethodReflector,
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Throttler $throttler,
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IRequest $request) {
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$this->reflector = $controllerMethodReflector;
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$this->throttler = $throttler;
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$this->request = $request;
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public function __construct(
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protected ControllerMethodReflector $reflector,
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protected Throttler $throttler,
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protected IRequest $request,
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protected LoggerInterface $logger,
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) {
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}
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/**
@@ -68,18 +68,55 @@ public function beforeController($controller, $methodName) {
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if ($this->reflector->hasAnnotation('BruteForceProtection')) {
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$action = $this->reflector->getAnnotationParameter('BruteForceProtection', 'action');
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$this->throttler->sleepDelayOrThrowOnMax($this->request->getRemoteAddress(), $action);
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} else {
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$reflectionMethod = new ReflectionMethod($controller, $methodName);
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$attributes = $reflectionMethod->getAttributes(BruteForceProtection::class);
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if (!empty($attributes)) {
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$remoteAddress = $this->request->getRemoteAddress();
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foreach ($attributes as $attribute) {
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/** @var BruteForceProtection $protection */
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$protection = $attribute->newInstance();
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$action = $protection->getAction();
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$this->throttler->sleepDelayOrThrowOnMax($remoteAddress, $action);
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}
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}
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}
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}
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/**
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* {@inheritDoc}
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*/
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public function afterController($controller, $methodName, Response $response) {
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if ($this->reflector->hasAnnotation('BruteForceProtection') && $response->isThrottled()) {
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$action = $this->reflector->getAnnotationParameter('BruteForceProtection', 'action');
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$ip = $this->request->getRemoteAddress();
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$this->throttler->sleepDelay($ip, $action);
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$this->throttler->registerAttempt($action, $ip, $response->getThrottleMetadata());
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if ($response->isThrottled()) {
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if ($this->reflector->hasAnnotation('BruteForceProtection')) {
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$action = $this->reflector->getAnnotationParameter('BruteForceProtection', 'action');
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$ip = $this->request->getRemoteAddress();
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$this->throttler->sleepDelay($ip, $action);
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$this->throttler->registerAttempt($action, $ip, $response->getThrottleMetadata());
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} else {
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$reflectionMethod = new ReflectionMethod($controller, $methodName);
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$attributes = $reflectionMethod->getAttributes(BruteForceProtection::class);
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if (!empty($attributes)) {
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$ip = $this->request->getRemoteAddress();
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$metaData = $response->getThrottleMetadata();
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foreach ($attributes as $attribute) {
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/** @var BruteForceProtection $protection */
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$protection = $attribute->newInstance();
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$action = $protection->getAction();
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if (!isset($metaData['action']) || $metaData['action'] === $action) {
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$this->throttler->sleepDelay($ip, $action);
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$this->throttler->registerAttempt($action, $ip, $metaData);
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}
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}
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} else {
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$this->logger->debug('Response for ' . get_class($controller) . '::' . $methodName . ' got bruteforce throttled but has no annotation nor attribute defined.');
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}
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}
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}
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return parent::afterController($controller, $methodName, $response);

‎lib/public/AppFramework/Http/Attribute/BruteForceProtection.php‎

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@@ -0,0 +1,52 @@
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<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2023 Joas Schilling <coding@schilljs.com>
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*
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* @author Joas Schilling <coding@schilljs.com>
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*
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* @license GNU AGPL version 3 or any later version
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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 <http://www.gnu.org/licenses/>.
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*/
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26+
namespace OCP\AppFramework\Http\Attribute;
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28+
use Attribute;
29+
30+
/**
31+
* Attribute for controller methods that want to protect passwords, keys, tokens
32+
* or other data against brute force
33+
*
34+
* @since 27.0.0
35+
*/
36+
#[Attribute(Attribute::TARGET_METHOD | Attribute::IS_REPEATABLE)]
37+
class BruteForceProtection {
38+
/**
39+
* @since 27.0.0
40+
*/
41+
public function __construct(
42+
protected string $action
43+
) {
44+
}
45+
46+
/**
47+
* @since 27.0.0
48+
*/
49+
public function getAction(): string {
50+
return $this->action;
51+
}
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}

‎lib/public/AppFramework/Http/Attribute/UseSession.php‎

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@@ -2,7 +2,7 @@
22

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declare(strict_types=1);
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5-
/*
5+
/**
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* @copyright 2023 Christoph Wurst <christoph@winzerhof-wurst.at>
77
*
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* @author 2023 Christoph Wurst <christoph@winzerhof-wurst.at>

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