141 lines
4.4 KiB
PHP
141 lines
4.4 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Christoph Wurst <christoph@owncloud.com>
|
|
* @author Joas Schilling <coding@schilljs.com>
|
|
*
|
|
* @license AGPL-3.0
|
|
*
|
|
* This code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License, version 3,
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
namespace OC\Core\Middleware;
|
|
|
|
use Exception;
|
|
use OC\Authentication\Exceptions\TwoFactorAuthRequiredException;
|
|
use OC\Authentication\Exceptions\UserAlreadyLoggedInException;
|
|
use OC\Authentication\TwoFactorAuth\Manager;
|
|
use OC\Core\Controller\LoginController;
|
|
use OC\Core\Controller\TwoFactorChallengeController;
|
|
use OC\User\Session;
|
|
use OCP\AppFramework\Controller;
|
|
use OCP\AppFramework\Http\RedirectResponse;
|
|
use OCP\AppFramework\Middleware;
|
|
use OCP\AppFramework\Utility\IControllerMethodReflector;
|
|
use OCP\IRequest;
|
|
use OCP\ISession;
|
|
use OCP\IURLGenerator;
|
|
use OCP\IUser;
|
|
|
|
class TwoFactorMiddleware extends Middleware {
|
|
|
|
/** @var Manager */
|
|
private $twoFactorManager;
|
|
|
|
/** @var Session */
|
|
private $userSession;
|
|
|
|
/** @var ISession */
|
|
private $session;
|
|
|
|
/** @var IURLGenerator */
|
|
private $urlGenerator;
|
|
|
|
/** @var IControllerMethodReflector */
|
|
private $reflector;
|
|
|
|
/** @var IRequest */
|
|
private $request;
|
|
|
|
/**
|
|
* @param Manager $twoFactorManager
|
|
* @param Session $userSession
|
|
* @param ISession $session
|
|
* @param IURLGenerator $urlGenerator
|
|
*/
|
|
public function __construct(Manager $twoFactorManager, Session $userSession, ISession $session,
|
|
IURLGenerator $urlGenerator, IControllerMethodReflector $reflector, IRequest $request) {
|
|
$this->twoFactorManager = $twoFactorManager;
|
|
$this->userSession = $userSession;
|
|
$this->session = $session;
|
|
$this->urlGenerator = $urlGenerator;
|
|
$this->reflector = $reflector;
|
|
$this->request = $request;
|
|
}
|
|
|
|
/**
|
|
* @param Controller $controller
|
|
* @param string $methodName
|
|
*/
|
|
public function beforeController(Controller $controller, $methodName) {
|
|
if ($this->reflector->hasAnnotation('PublicPage')) {
|
|
// Don't block public pages
|
|
return;
|
|
}
|
|
|
|
if ($controller instanceof LoginController && $methodName === 'logout') {
|
|
// Don't block the logout page, to allow canceling the 2FA
|
|
return;
|
|
}
|
|
|
|
if ($this->userSession->isLoggedIn()) {
|
|
$user = $this->userSession->getUser();
|
|
|
|
if ($this->twoFactorManager->isTwoFactorAuthenticated($user)) {
|
|
$this->checkTwoFactor($controller, $methodName, $user);
|
|
} else if ($controller instanceof TwoFactorChallengeController) {
|
|
// Allow access to the two-factor controllers only if two-factor authentication
|
|
// is in progress.
|
|
throw new UserAlreadyLoggedInException();
|
|
}
|
|
}
|
|
// TODO: dont check/enforce 2FA if a auth token is used
|
|
}
|
|
|
|
private function checkTwoFactor(Controller $controller, $methodName, IUser $user) {
|
|
// If two-factor auth is in progress disallow access to any controllers
|
|
// defined within "LoginController".
|
|
$needsSecondFactor = $this->twoFactorManager->needsSecondFactor($user);
|
|
$twoFactor = $controller instanceof TwoFactorChallengeController;
|
|
|
|
// Disallow access to any controller if 2FA needs to be checked
|
|
if ($needsSecondFactor && !$twoFactor) {
|
|
throw new TwoFactorAuthRequiredException();
|
|
}
|
|
|
|
// Allow access to the two-factor controllers only if two-factor authentication
|
|
// is in progress.
|
|
if (!$needsSecondFactor && $twoFactor) {
|
|
throw new UserAlreadyLoggedInException();
|
|
}
|
|
}
|
|
|
|
public function afterException(Controller $controller, $methodName, Exception $exception) {
|
|
if ($exception instanceof TwoFactorAuthRequiredException) {
|
|
$params = [];
|
|
if (isset($this->request->server['REQUEST_URI'])) {
|
|
$params['redirect_url'] = $this->request->server['REQUEST_URI'];
|
|
}
|
|
return new RedirectResponse($this->urlGenerator->linkToRoute('core.TwoFactorChallenge.selectChallenge', $params));
|
|
}
|
|
if ($exception instanceof UserAlreadyLoggedInException) {
|
|
return new RedirectResponse($this->urlGenerator->linkToRoute('files.view.index'));
|
|
}
|
|
|
|
throw $exception;
|
|
}
|
|
|
|
}
|