nextcloud/apps/files_external/lib/Lib/Auth/Password/LoginCredentials.php

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<?php
/**
* @copyright Copyright (c) 2015, ownCloud, Inc.
2016-07-21 17:49:16 +03:00
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
2016-07-21 17:49:16 +03:00
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
* @author Roeland Jago Douma <roeland@famdouma.nl>
2016-07-21 17:49:16 +03:00
*
* @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 OCA\Files_External\Lib\Auth\Password;
use OCA\Files_External\Lib\Auth\AuthMechanism;
use OCA\Files_External\Lib\InsufficientDataForMeaningfulAnswerException;
use OCA\Files_External\Lib\StorageConfig;
use OCA\Files_External\Listener\StorePasswordListener;
use OCP\Authentication\Exceptions\CredentialsUnavailableException;
use OCP\Authentication\LoginCredentials\IStore as CredentialsStore;
use OCP\EventDispatcher\IEventDispatcher;
use OCP\IL10N;
use OCP\ISession;
use OCP\IUser;
use OCP\Security\ICredentialsManager;
use OCP\User\Events\PasswordUpdatedEvent;
use OCP\User\Events\UserLoggedInEvent;
/**
* Username and password from login credentials, saved in DB
*/
class LoginCredentials extends AuthMechanism {
public const CREDENTIALS_IDENTIFIER = 'password::logincredentials/credentials';
/** @var ISession */
protected $session;
/** @var ICredentialsManager */
protected $credentialsManager;
/** @var CredentialsStore */
private $credentialsStore;
public function __construct(IL10N $l, ISession $session, ICredentialsManager $credentialsManager, CredentialsStore $credentialsStore, IEventDispatcher $eventDispatcher) {
$this->session = $session;
$this->credentialsManager = $credentialsManager;
$this->credentialsStore = $credentialsStore;
$this
->setIdentifier('password::logincredentials')
->setScheme(self::SCHEME_PASSWORD)
->setText($l->t('Log-in credentials, save in database'))
->addParameters([
]);
$eventDispatcher->addServiceListener(UserLoggedInEvent::class, StorePasswordListener::class);
$eventDispatcher->addServiceListener(PasswordUpdatedEvent::class, StorePasswordListener::class);
}
private function getCredentials(IUser $user): array {
$credentials = $this->credentialsManager->retrieve($user->getUID(), self::CREDENTIALS_IDENTIFIER);
if (is_null($credentials)) {
// nothing saved in db, try to get it from the session and save it
try {
$sessionCredentials = $this->credentialsStore->getLoginCredentials();
if ($sessionCredentials->getUID() !== $user->getUID()) {
// Can't take the credentials from the session as they are not the same user
throw new CredentialsUnavailableException();
}
$credentials = [
'user' => $sessionCredentials->getLoginName(),
'password' => $sessionCredentials->getPassword()
];
$this->credentialsManager->store($user->getUID(), self::CREDENTIALS_IDENTIFIER, $credentials);
} catch (CredentialsUnavailableException $e) {
throw new InsufficientDataForMeaningfulAnswerException('No login credentials saved');
}
}
return $credentials;
}
public function manipulateStorageConfig(StorageConfig &$storage, IUser $user = null) {
if (!isset($user)) {
throw new InsufficientDataForMeaningfulAnswerException('No login credentials saved');
}
$credentials = $this->getCredentials($user);
$storage->setBackendOption('user', $credentials['user']);
$storage->setBackendOption('password', $credentials['password']);
}
}