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<?php
/**
* @author Björn Schießle <schiessle@owncloud.com>
* @author Lukas Reschke <lukas@owncloud.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <icewind@owncloud.com>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @copyright Copyright (c) 2016, ownCloud, Inc.
* @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\DAV\Connector;
use OCP\IConfig;
use OCP\IRequest;
class PublicAuth extends \Sabre\DAV\Auth\Backend\AbstractBasic {
/**
* @var \OCP\IConfig
*/
private $config;
private $share;
/**
* @var IRequest
*/
private $request;
/**
* @param \OCP\IConfig $config
* @param IRequest $request
*/
public function __construct(IConfig $config,
IRequest $request) {
$this->config = $config;
$this->request = $request;
}
/**
* Validates a username and password
*
* This method should return true or false depending on if login
* succeeded.
*
* @param string $username
* @param string $password
*
* @return bool
* @throws \Sabre\DAV\Exception\NotAuthenticated
*/
protected function validateUserPass($username, $password) {
$linkItem = \OCP\Share::getShareByToken($username, false);
\OC_User::setIncognitoMode(true);
$this->share = $linkItem;
if (!$linkItem) {
return false;
}
if ((int)$linkItem['share_type'] === \OCP\Share::SHARE_TYPE_LINK &&
$this->config->getAppValue('core', 'shareapi_allow_public_upload', 'yes') !== 'yes') {
$this->share['permissions'] &= ~(\OCP\Constants::PERMISSION_CREATE | \OCP\Constants::PERMISSION_UPDATE);
}
// check if the share is password protected
if (isset($linkItem['share_with'])) {
if ($linkItem['share_type'] == \OCP\Share::SHARE_TYPE_LINK) {
// Check Password
$newHash = '';
if(\OC::$server->getHasher()->verify($password, $linkItem['share_with'], $newHash)) {
/**
* FIXME: Migrate old hashes to new hash format
* Due to the fact that there is no reasonable functionality to update the password
* of an existing share no migration is yet performed there.
* The only possibility is to update the existing share which will result in a new
* share ID and is a major hack.
*
* In the future the migration should be performed once there is a proper method
* to update the share's password. (for example `$share->updatePassword($password)`
*
* @link https://github.com/owncloud/core/issues/10671
*/
if(!empty($newHash)) {
}
return true;
} else if (\OC::$server->getSession()->exists('public_link_authenticated')
&& \OC::$server->getSession()->get('public_link_authenticated') === $linkItem['id']) {
return true;
} else {
if (in_array('XMLHttpRequest', explode(',', $this->request->getHeader('X-Requested-With')))) {
// do not re-authenticate over ajax, use dummy auth name to prevent browser popup
http_response_code(401);
header('WWW-Authenticate', 'DummyBasic real="ownCloud"');
throw new \Sabre\DAV\Exception\NotAuthenticated('Cannot authenticate over ajax calls');
}
return false;
}
} else if ($linkItem['share_type'] == \OCP\Share::SHARE_TYPE_REMOTE) {
return true;
} else {
return false;
}
} else {
return true;
}
}
/**
* @return array
*/
public function getShare() {
return $this->share;
}
}
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