friendica-addons/dav/friendica/dav_friendica_principal.inc.php
2018-01-15 08:15:33 -05:00

219 lines
5.7 KiB
PHP

<?php
class Sabre_DAVACL_PrincipalBackend_Std implements Sabre_DAVACL_IPrincipalBackend
{
/**
* Principals prefix
*
* @var string
*/
public $prefix = 'principals/users';
/**
* @var Sabre_DAV_Auth_Backend_AbstractBasic $authBackend;
*/
protected $authBackend;
public function __construct(&$authBackend)
{
$this->authBackend = &$authBackend;
}
/**
* @var Sabre_DAVACL_IPrincipalBackend|null
*/
private static $intstance = null;
/**
* @static
* @return Sabre_DAVACL_IPrincipalBackend
*/
public static function &getInstance() {
if (is_null(self::$intstance)) {
$authBackend = Sabre_DAV_Auth_Backend_Std::getInstance();
self::$intstance = new Sabre_DAVACL_PrincipalBackend_Std($authBackend);
}
return self::$intstance;
}
/**
* 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 actualy 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)
{
// This backend only support principals in one collection
if ($prefixPath !== $this->prefix) return [];
$users = [];
$r = q("SELECT `nickname` FROM `user` WHERE `nickname` = '%s'", escape_tags($this->authBackend->getCurrentUser()) );
foreach ($r as $t) {
$users[] = [
'uri' => $this->prefix . '/' . strtolower($t['nickname']),
'{DAV:}displayname' => $t['nickname'],
];
}
return $users;
}
/**
* 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)
{
list($prefixPath, $userName) = Sabre_DAV_URLUtil::splitPath($path);
// This backend only support principals in one collection
if ($prefixPath !== $this->prefix) return null;
$r = q("SELECT `nickname` FROM `user` WHERE `nickname` = '%s'", escape_tags($userName) );
if (count($r) == 0) return [];
return [
'uri' => $this->prefix . '/' . strtolower($r[0]['nickname']),
'{DAV:}displayname' => $r[0]['nickname'],
];
}
function getGroupMemberSet($principal)
{
return [];
}
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 array $members
* @throws Sabre_DAV_Exception
* @return void
*/
public function setGroupMemberSet($principal, array $members)
{
throw new Sabre_DAV_Exception('Operation not supported');
}
/**
* Updates one ore more webdav properties on a principal.
*
* The list of mutations is supplied as an array. Each key in the array is
* a propertyname, such as {DAV:}displayname.
*
* Each value is the actual value to be updated. If a value is null, it
* must be deleted.
*
* This method should be atomic. It must either completely succeed, or
* completely fail. Success and failure can simply be returned as 'true' or
* 'false'.
*
* It is also possible to return detailed failure information. In that case
* an array such as this should be returned:
*
* array(
* 200 => array(
* '{DAV:}prop1' => null,
* ),
* 201 => array(
* '{DAV:}prop2' => null,
* ),
* 403 => array(
* '{DAV:}prop3' => null,
* ),
* 424 => array(
* '{DAV:}prop4' => null,
* ),
* );
*
* In this previous example prop1 was successfully updated or deleted, and
* prop2 was succesfully created.
*
* prop3 failed to update due to '403 Forbidden' and because of this prop4
* also could not be updated with '424 Failed dependency'.
*
* This last example was actually incorrect. While 200 and 201 could appear
* in 1 response, if there's any error (403) the other properties should
* always fail with 423 (failed dependency).
*
* But anyway, if you don't want to scratch your head over this, just
* return true or false.
*
* @param string $path
* @param array $mutations
* @return array|bool
*/
function updatePrincipal($path, $mutations)
{
// TODO: Implement updatePrincipal() method.
}
/**
* 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. You should at least allow searching on
* http://sabredav.org/ns}email-address.
*
* 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.
*
* If multiple properties are being searched on, the search should be
* AND'ed.
*
* 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 $searchProperties
* @return array
*/
function searchPrincipals($prefixPath, array $searchProperties)
{
// TODO: Implement searchPrincipals() method.
}
}