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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @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\DAV;
use OCP\IGroup;
use OCP\IGroupManager;
use OCP\IUser;
use Sabre\DAV\Exception;
use \Sabre\DAV\PropPatch;
use Sabre\DAVACL\PrincipalBackend\BackendInterface;
class GroupPrincipalBackend implements BackendInterface {
const PRINCIPAL_PREFIX = 'principals/groups';
/** @var IGroupManager */
private $groupManager;
/**
* @param IGroupManager $IGroupManager
*/
public function __construct(IGroupManager $IGroupManager) {
$this->groupManager = $IGroupManager;
}
/**
* Returns a list of principals based on a prefix.
*
* This prefix will often contain something like 'principals'. You are only
* expected to return principals that are in this base path.
*
* You are expected to return at least a 'uri' for every user, you can
* return any additional properties if you wish so. Common properties are:
* {DAV:}displayname
*
* @param string $prefixPath
* @return string[]
*/
public function getPrincipalsByPrefix($prefixPath) {
$principals = [];
if ($prefixPath === self::PRINCIPAL_PREFIX) {
foreach($this->groupManager->search('') as $user) {
$principals[] = $this->groupToPrincipal($user);
}
}
return $principals;
}
/**
* Returns a specific principal, specified by it's path.
* The returned structure should be the exact same as from
* getPrincipalsByPrefix.
*
* @param string $path
* @return array
*/
public function getPrincipalByPath($path) {
$elements = explode('/', $path, 3);
if ($elements[0] !== 'principals') {
return null;
}
if ($elements[1] !== 'groups') {
return null;
}
$name = urldecode($elements[2]);
$group = $this->groupManager->get($name);
if (!is_null($group)) {
return $this->groupToPrincipal($group);
}
return null;
}
/**
* Returns the list of members for a group-principal
*
* @param string $principal
* @return string[]
* @throws Exception
*/
public function getGroupMemberSet($principal) {
$elements = explode('/', $principal);
if ($elements[0] !== 'principals') {
return [];
}
if ($elements[1] !== 'groups') {
return [];
}
$name = $elements[2];
$group = $this->groupManager->get($name);
if (is_null($group)) {
return [];
}
return array_map(function($user) {
return $this->userToPrincipal($user);
}, $group->getUsers());
}
/**
* Returns the list of groups a principal is a member of
*
* @param string $principal
* @return array
* @throws Exception
*/
public function getGroupMembership($principal) {
return [];
}
/**
* Updates the list of group members for a group principal.
*
* The principals should be passed as a list of uri's.
*
* @param string $principal
* @param string[] $members
* @throws Exception
*/
public function setGroupMemberSet($principal, array $members) {
throw new Exception('Setting members of the group is not supported yet');
}
/**
* @param string $path
* @param PropPatch $propPatch
* @return int
*/
function updatePrincipal($path, PropPatch $propPatch) {
return 0;
}
/**
* @param string $prefixPath
* @param array $searchProperties
* @param string $test
* @return array
*/
function searchPrincipals($prefixPath, array $searchProperties, $test = 'allof') {
return [];
}
/**
* @param string $uri
* @param string $principalPrefix
* @return string
*/
function findByUri($uri, $principalPrefix) {
return '';
}
/**
* @param IGroup $group
* @return array
*/
protected function groupToPrincipal($group) {
$groupId = $group->getGID();
$principal = [
'uri' => 'principals/groups/' . urlencode($groupId),
'{DAV:}displayname' => $groupId,
];
return $principal;
}
/**
* @param IUser $user
* @return array
*/
protected function userToPrincipal($user) {
$principal = [
'uri' => 'principals/users/' . $user->getUID(),
'{DAV:}displayname' => $user->getDisplayName(),
];
return $principal;
}
}
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