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<?php
/**
* @copyright 2016 Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @author 2016 Christoph Wurst <christoph@winzerhof-wurst.at>
*
* @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 OC\Authentication\LoginCredentials;
use OC\Authentication\Exceptions\InvalidTokenException;
use OC\Authentication\Exceptions\PasswordlessTokenException;
use OC\Authentication\Token\IProvider;
use OCP\Authentication\Exceptions\CredentialsUnavailableException;
use OCP\Authentication\LoginCredentials\ICredentials;
use OCP\Authentication\LoginCredentials\IStore;
use OCP\ILogger;
use OCP\ISession;
use OCP\Session\Exceptions\SessionNotAvailableException;
use OCP\Util;
class Store implements IStore {
/** @var ISession */
private $session;
/** @var ILogger */
private $logger;
/** @var IProvider|null */
private $tokenProvider;
/**
* @param ISession $session
* @param ILogger $logger
* @param IProvider $tokenProvider
*/
public function __construct(ISession $session, ILogger $logger, IProvider $tokenProvider = null) {
$this->session = $session;
$this->logger = $logger;
$this->tokenProvider = $tokenProvider;
Util::connectHook('OC_User', 'post_login', $this, 'authenticate');
}
/**
* Hook listener on post login
*
* @param array $params
*/
public function authenticate(array $params) {
$this->session->set('login_credentials', json_encode($params));
}
/**
* Replace the session implementation
*
* @param ISession $session
*/
public function setSession(ISession $session) {
$this->session = $session;
}
/**
* @since 12
*
* @return ICredentials the login credentials of the current user
* @throws CredentialsUnavailableException
*/
public function getLoginCredentials() {
if (is_null($this->tokenProvider)) {
throw new CredentialsUnavailableException();
}
$trySession = false;
try {
$sessionId = $this->session->getId();
$token = $this->tokenProvider->getToken($sessionId);
$uid = $token->getUID();
$user = $token->getLoginName();
$password = $this->tokenProvider->getPassword($token, $sessionId);
return new Credentials($uid, $user, $password);
} catch (SessionNotAvailableException $ex) {
$this->logger->debug('could not get login credentials because session is unavailable', ['app' => 'core']);
} catch (InvalidTokenException $ex) {
$this->logger->debug('could not get login credentials because the token is invalid', ['app' => 'core']);
$trySession = true;
} catch (PasswordlessTokenException $ex) {
$this->logger->debug('could not get login credentials because the token has no password', ['app' => 'core']);
$trySession = true;
}
if ($trySession && $this->session->exists('login_credentials')) {
$creds = json_decode($this->session->get('login_credentials'));
return new Credentials($creds->uid, $creds->uid, $creds->password);
}
// If we reach this line, an exception was thrown.
throw new CredentialsUnavailableException();
}
}
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