user_saml/lib/Middleware/OnlyLoggedInMiddleware.php

85 lines
2.5 KiB
PHP

<?php
/**
* @copyright Copyright (c) 2016 Lukas Reschke <lukas@statuscode.ch>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\User_SAML\Middleware;
use OCP\AppFramework\Http\JSONResponse;
use OCP\AppFramework\Http\RedirectResponse;
use OCP\AppFramework\Middleware;
use OCP\AppFramework\Utility\IControllerMethodReflector;
use OCP\IURLGenerator;
use OCP\IUserSession;
/**
* Class OnlyLoggedInMiddleware prevents access to a controller method if the user
* is already logged-in.
*
* @package OCA\User_SAML\MiddleWare
*/
class OnlyLoggedInMiddleware extends Middleware {
/** @var IControllerMethodReflector */
private $reflector;
/** @var IUserSession */
private $userSession;
/** @var IURLGenerator */
private $urlGenerator;
/**
* @param IControllerMethodReflector $reflector
* @param IUserSession $userSession
*/
public function __construct(
IControllerMethodReflector $reflector,
IUserSession $userSession,
IURLGenerator $urlGenerator
) {
$this->reflector = $reflector;
$this->userSession = $userSession;
$this->urlGenerator = $urlGenerator;
}
/**
* @param \OCP\AppFramework\Controller $controller
* @param string $methodName
* @throws \Exception
*/
public function beforeController($controller, $methodName){
if($this->reflector->hasAnnotation('OnlyUnauthenticatedUsers') && $this->userSession->isLoggedIn()) {
throw new \Exception('User is already logged-in');
}
}
/**
* @param \OCP\AppFramework\Controller $controller
* @param string $methodName
* @param \Exception $exception
* @return RedirectResponse
* @throws \Exception
*/
public function afterException($controller, $methodName, \Exception $exception) {
if($exception->getMessage() === 'User is already logged-in') {
return new RedirectResponse($this->urlGenerator->getAbsoluteURL('/'));
}
throw $exception;
}
}