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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author Morris Jobke <hey@morrisjobke.de>
* @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 Sabre\DAVACL\PrincipalBackend\AbstractBackend;
class SystemPrincipalBackend extends AbstractBackend {
/**
* 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
* {http://sabredav.org/ns}email-address - This is a custom SabreDAV
* field that's actually injected in a number of other properties. If
* you have an email address, use this property.
*
* @param string $prefixPath
* @return array
*/
public function getPrincipalsByPrefix($prefixPath) {
$principals = [];
if ($prefixPath === 'principals/system') {
$principals[] = [
'uri' => 'principals/system/system',
'{DAV:}displayname' => 'system',
];
$principals[] = [
'uri' => 'principals/system/public',
'{DAV:}displayname' => 'public',
];
}
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) {
if ($path === 'principals/system/system') {
$principal = [
'uri' => 'principals/system/system',
'{DAV:}displayname' => 'system',
];
return $principal;
}
if ($path === 'principals/system/public') {
$principal = [
'uri' => 'principals/system/public',
'{DAV:}displayname' => 'public',
];
return $principal;
}
return null;
}
/**
* Updates one ore more webdav properties on a principal.
*
* The list of mutations is stored in a Sabre\DAV\PropPatch object.
* To do the actual updates, you must tell this object which properties
* you're going to process with the handle() method.
*
* Calling the handle method is like telling the PropPatch object "I
* promise I can handle updating this property".
*
* Read the PropPatch documentation for more info and examples.
*
* @param string $path
* @param \Sabre\DAV\PropPatch $propPatch
* @return void
*/
public function updatePrincipal($path, \Sabre\DAV\PropPatch $propPatch) {
}
/**
* This method is used to search for principals matching a set of
* properties.
*
* This search is specifically used by RFC3744's principal-property-search
* REPORT.
*
* The actual search should be a unicode-non-case-sensitive search. The
* keys in searchProperties are the WebDAV property names, while the values
* are the property values to search on.
*
* By default, if multiple properties are submitted to this method, the
* various properties should be combined with 'AND'. If $test is set to
* 'anyof', it should be combined using 'OR'.
*
* This method should simply return an array with full principal uri's.
*
* If somebody attempted to search on a property the backend does not
* support, you should simply return 0 results.
*
* You can also just return 0 results if you choose to not support
* searching at all, but keep in mind that this may stop certain features
* from working.
*
* @param string $prefixPath
* @param array $searchProperties
* @param string $test
* @return array
*/
public function searchPrincipals($prefixPath, array $searchProperties, $test = 'allof') {
return [];
}
/**
* Returns the list of members for a group-principal
*
* @param string $principal
* @return array
*/
public function getGroupMemberSet($principal) {
// TODO: for now the group principal has only one member, the user itself
$principal = $this->getPrincipalByPath($principal);
if (!$principal) {
throw new \Sabre\DAV\Exception('Principal not found');
}
return [$principal['uri']];
}
/**
* Returns the list of groups a principal is a member of
*
* @param string $principal
* @return array
*/
public function getGroupMembership($principal) {
[$prefix, ] = \Sabre\Uri\split($principal);
if ($prefix === 'principals/system') {
$principal = $this->getPrincipalByPath($principal);
if (!$principal) {
throw new \Sabre\DAV\Exception('Principal not found');
}
return [];
}
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 array $members
* @return void
*/
public function setGroupMemberSet($principal, array $members) {
throw new \Sabre\DAV\Exception('Setting members of the group is not supported yet');
}
}
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