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<?php
/**
* @author Joas Schilling <nickvergessen@owncloud.com>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @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 OCA\DAV\Connector\Sabre\DavAclPlugin;
use Sabre\DAV\INode;
use Sabre\DAV\PropFind;
use Sabre\HTTP\URLUtil;
use Sabre\DAVACL\Xml\Property\Principal;
class LegacyDAVACL extends DavAclPlugin {
/**
* Converts the v1 principal `principal/<username>` to the new v2
* `principal/users/<username>` which is required for permission checks
*
* @inheritdoc
*/
function getCurrentUserPrincipal() {
$principalV1 = parent::getCurrentUserPrincipal();
if (is_null($principalV1)) {
return $principalV1;
}
return $this->convertPrincipal($principalV1, true);
}
/**
* @inheritdoc
*/
function getCurrentUserPrincipals() {
$principalV2 = $this->getCurrentUserPrincipal();
if (is_null($principalV2)) return [];
$principalV1 = $this->convertPrincipal($principalV2, false);
return array_merge(
[
$principalV2,
$principalV1
],
$this->getPrincipalMembership($principalV1)
);
}
private function convertPrincipal($principal, $toV2) {
list(, $name) = URLUtil::splitPath($principal);
if ($toV2) {
return "principals/users/$name";
}
return "principals/$name";
}
function propFind(PropFind $propFind, INode $node) {
/* Overload current-user-principal */
$propFind->handle('{DAV:}current-user-principal', function () {
if ($url = parent::getCurrentUserPrincipal()) {
return new Principal(Principal::HREF, $url . '/');
} else {
return new Principal(Principal::UNAUTHENTICATED);
}
});
parent::propFind($propFind, $node);
}
}
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