nextcloud/core/Controller/AppPasswordController.php

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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2018, Roeland Jago Douma <roeland@famdouma.nl>
*
* @author Roeland Jago Douma <roeland@famdouma.nl>
*
* @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\Core\Controller;
use OC\Authentication\Exceptions\InvalidTokenException;
use OC\Authentication\Token\IProvider;
use OC\Authentication\Token\IToken;
use OCP\AppFramework\Http\DataResponse;
use OCP\AppFramework\OCS\OCSForbiddenException;
use OCP\Authentication\Exceptions\CredentialsUnavailableException;
use OCP\Authentication\Exceptions\PasswordUnavailableException;
use OCP\Authentication\LoginCredentials\IStore;
use OCP\IRequest;
use OCP\ISession;
use OCP\Security\ISecureRandom;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\EventDispatcher\GenericEvent;
class AppPasswordController extends \OCP\AppFramework\OCSController {
/** @var ISession */
private $session;
/** @var ISecureRandom */
private $random;
/** @var IProvider */
private $tokenProvider;
/** @var IStore */
private $credentialStore;
/** @var EventDispatcherInterface */
private $eventDispatcher;
public function __construct(string $appName,
IRequest $request,
ISession $session,
ISecureRandom $random,
IProvider $tokenProvider,
IStore $credentialStore,
EventDispatcherInterface $eventDispatcher) {
parent::__construct($appName, $request);
$this->session = $session;
$this->random = $random;
$this->tokenProvider = $tokenProvider;
$this->credentialStore = $credentialStore;
$this->eventDispatcher = $eventDispatcher;
}
/**
* @NoAdminRequired
*
* @return DataResponse
* @throws OCSForbiddenException
*/
public function getAppPassword(): DataResponse {
// We do not allow the creation of new tokens if this is an app password
if ($this->session->exists('app_password')) {
throw new OCSForbiddenException('You cannot request an new apppassword with an apppassword');
}
try {
$credentials = $this->credentialStore->getLoginCredentials();
} catch (CredentialsUnavailableException $e) {
throw new OCSForbiddenException();
}
try {
$password = $credentials->getPassword();
} catch (PasswordUnavailableException $e) {
$password = null;
}
$userAgent = $this->request->getHeader('USER_AGENT');
$token = $this->random->generate(72, ISecureRandom::CHAR_UPPER.ISecureRandom::CHAR_LOWER.ISecureRandom::CHAR_DIGITS);
$generatedToken = $this->tokenProvider->generateToken(
$token,
$credentials->getUID(),
$credentials->getLoginName(),
$password,
$userAgent,
IToken::PERMANENT_TOKEN,
IToken::DO_NOT_REMEMBER
);
$event = new GenericEvent($generatedToken);
$this->eventDispatcher->dispatch('app_password_created', $event);
return new DataResponse([
'apppassword' => $token
]);
}
/**
* @NoAdminRequired
*
* @return DataResponse
*/
public function deleteAppPassword() {
if (!$this->session->exists('app_password')) {
throw new OCSForbiddenException('no app password in use');
}
$appPassword = $this->session->get('app_password');
try {
$token = $this->tokenProvider->getToken($appPassword);
} catch (InvalidTokenException $e) {
throw new OCSForbiddenException('could not remove apptoken');
}
$this->tokenProvider->invalidateTokenById($token->getUID(), $token->getId());
return new DataResponse();
}
/**
* @NoAdminRequired
*/
public function rotateAppPassword(): DataResponse {
if (!$this->session->exists('app_password')) {
throw new OCSForbiddenException('no app password in use');
}
$appPassword = $this->session->get('app_password');
try {
$token = $this->tokenProvider->getToken($appPassword);
} catch (InvalidTokenException $e) {
throw new OCSForbiddenException('could not rotate apptoken');
}
$newToken = $this->random->generate(72, ISecureRandom::CHAR_UPPER.ISecureRandom::CHAR_LOWER.ISecureRandom::CHAR_DIGITS);
$this->tokenProvider->rotate($token, $appPassword, $newToken);
return new DataResponse([
'apppassword' => $newToken,
]);
}
}