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<?php |
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/** |
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* @copyright Copyright (c) 2016, ownCloud, Inc. |
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* |
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* @author Christoph Wurst <[email protected]> |
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* @author Joas Schilling <[email protected]> |
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* @author Lukas Reschke <[email protected]> |
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* @author Roeland Jago Douma <[email protected]> |
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* |
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* @license AGPL-3.0 |
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* |
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* This code 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, version 3, |
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* as published by the Free Software Foundation. |
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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, version 3, |
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* along with this program. If not, see <http://www.gnu.org/licenses/> |
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* |
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*/ |
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namespace OC\Core\Middleware; |
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use Exception; |
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use OC\Authentication\Exceptions\TwoFactorAuthRequiredException; |
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use OC\Authentication\Exceptions\UserAlreadyLoggedInException; |
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use OC\Authentication\TwoFactorAuth\Manager; |
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use OC\Core\Controller\LoginController; |
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use OC\Core\Controller\TwoFactorChallengeController; |
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use OC\User\Session; |
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use OCP\AppFramework\Controller; |
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use OCP\AppFramework\Http\RedirectResponse; |
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use OCP\AppFramework\Middleware; |
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use OCP\AppFramework\Utility\IControllerMethodReflector; |
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use OCP\Authentication\TwoFactorAuth\ALoginSetupController; |
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use OCP\IRequest; |
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use OCP\ISession; |
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use OCP\IURLGenerator; |
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use OCP\IUser; |
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class TwoFactorMiddleware extends Middleware { |
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/** @var Manager */ |
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private $twoFactorManager; |
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/** @var Session */ |
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private $userSession; |
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/** @var ISession */ |
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private $session; |
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/** @var IURLGenerator */ |
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private $urlGenerator; |
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/** @var IControllerMethodReflector */ |
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private $reflector; |
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/** @var IRequest */ |
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private $request; |
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/** |
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* @param Manager $twoFactorManager |
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* @param Session $userSession |
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* @param ISession $session |
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* @param IURLGenerator $urlGenerator |
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*/ |
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public function __construct(Manager $twoFactorManager, Session $userSession, ISession $session, |
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IURLGenerator $urlGenerator, IControllerMethodReflector $reflector, IRequest $request) { |
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$this->twoFactorManager = $twoFactorManager; |
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$this->userSession = $userSession; |
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$this->session = $session; |
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$this->urlGenerator = $urlGenerator; |
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$this->reflector = $reflector; |
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$this->request = $request; |
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} |
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/** |
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* @param Controller $controller |
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* @param string $methodName |
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*/ |
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public function beforeController($controller, $methodName) { |
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if ($this->reflector->hasAnnotation('PublicPage')) { |
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// Don't block public pages |
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return; |
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} |
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if ($controller instanceof TwoFactorChallengeController |
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&& $this->userSession->getUser() !== null |
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&& !$this->reflector->hasAnnotation('TwoFactorSetUpDoneRequired')) { |
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$providers = $this->twoFactorManager->getProviderSet($this->userSession->getUser()); |
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if (!($providers->getProviders() === [] && !$providers->isProviderMissing())) { |
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throw new TwoFactorAuthRequiredException(); |
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} |
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} |
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if ($controller instanceof ALoginSetupController |
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&& $this->userSession->getUser() !== null |
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&& $this->twoFactorManager->needsSecondFactor($this->userSession->getUser())) { |
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$providers = $this->twoFactorManager->getProviderSet($this->userSession->getUser()); |
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if ($providers->getProviders() === [] && !$providers->isProviderMissing()) { |
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return; |
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} |
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} |
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if ($controller instanceof LoginController && $methodName === 'logout') { |
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// Don't block the logout page, to allow canceling the 2FA |
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return; |
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} |
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if ($this->userSession->isLoggedIn()) { |
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$user = $this->userSession->getUser(); |
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if ($this->session->exists('app_password') || $this->twoFactorManager->isTwoFactorAuthenticated($user)) { |
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$this->checkTwoFactor($controller, $methodName, $user); |
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} elseif ($controller instanceof TwoFactorChallengeController) { |
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// Allow access to the two-factor controllers only if two-factor authentication |
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// is in progress. |
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throw new UserAlreadyLoggedInException(); |
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} |
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} |
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// TODO: dont check/enforce 2FA if a auth token is used |
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} |
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private function checkTwoFactor(Controller $controller, $methodName, IUser $user) { |
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// If two-factor auth is in progress disallow access to any controllers |
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// defined within "LoginController". |
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$needsSecondFactor = $this->twoFactorManager->needsSecondFactor($user); |
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$twoFactor = $controller instanceof TwoFactorChallengeController; |
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// Disallow access to any controller if 2FA needs to be checked |
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if ($needsSecondFactor && !$twoFactor) { |
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throw new TwoFactorAuthRequiredException(); |
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} |
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// Allow access to the two-factor controllers only if two-factor authentication |
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// is in progress. |
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if (!$needsSecondFactor && $twoFactor) { |
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throw new UserAlreadyLoggedInException(); |
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} |
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} |
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public function afterException($controller, $methodName, Exception $exception) { |
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if ($exception instanceof TwoFactorAuthRequiredException) { |
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$params = []; |
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if (isset($this->request->server['REQUEST_URI'])) { |
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$params['redirect_url'] = $this->request->server['REQUEST_URI']; |
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} |
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return new RedirectResponse($this->urlGenerator->linkToRoute('core.TwoFactorChallenge.selectChallenge', $params)); |
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} |
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if ($exception instanceof UserAlreadyLoggedInException) { |
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return new RedirectResponse($this->urlGenerator->linkToRoute('files.view.index')); |
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} |
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throw $exception; |
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} |
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} |
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nextcloud /
server
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.