nextcloud/apps/user_ldap/lib/helper.php

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<?php
/**
* ownCloud LDAP Helper
*
* @author Arthur Schiwon
* @copyright 2013 Arthur Schiwon blizzz@owncloud.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\user_ldap\lib;
class Helper {
/**
* @brief returns prefixes for each saved LDAP/AD server configuration.
* @param bool optional, whether only active configuration shall be
* retrieved, defaults to false
* @return array with a list of the available prefixes
*
* Configuration prefixes are used to set up configurations for n LDAP or
* AD servers. Since configuration is stored in the database, table
* appconfig under appid user_ldap, the common identifiers in column
* 'configkey' have a prefix. The prefix for the very first server
* configuration is empty.
* Configkey Examples:
* Server 1: ldap_login_filter
* Server 2: s1_ldap_login_filter
* Server 3: s2_ldap_login_filter
*
* The prefix needs to be passed to the constructor of Connection class,
* except the default (first) server shall be connected to.
*
*/
static public function getServerConfigurationPrefixes($activeConfigurations = false) {
$referenceConfigkey = 'ldap_configuration_active';
$query = '
SELECT DISTINCT `configkey`
FROM `*PREFIX*appconfig`
WHERE `configkey` LIKE ?
';
if($activeConfigurations) {
$query .= ' AND `configvalue` = 1';
}
$query = \OCP\DB::prepare($query);
$serverConfigs = $query->execute(array('%'.$referenceConfigkey))->fetchAll();
$prefixes = array();
foreach($serverConfigs as $serverConfig) {
$len = strlen($serverConfig['configkey']) - strlen($referenceConfigkey);
$prefixes[] = substr($serverConfig['configkey'], 0, $len);
}
return $prefixes;
}
/**
* @brief deletes a given saved LDAP/AD server configuration.
* @param string the configuration prefix of the config to delete
* @return bool true on success, false otherwise
*/
static public function deleteServerConfiguration($prefix) {
//just to be on the safe side
\OCP\User::checkAdminUser();
if(!in_array($prefix, self::getServerConfigurationPrefixes())) {
return false;
}
$query = \OCP\DB::prepare('
DELETE
FROM `*PREFIX*appconfig`
WHERE `configkey` LIKE ?
AND `appid` = "user_ldap"
AND `configkey` NOT IN ("enabled", "installed_version", "types", "bgjUpdateGroupsLastRun")
');
$res = $query->execute(array($prefix.'%'));
if(\OCP\DB::isError($res)) {
return false;
}
if($res->numRows() == 0) {
return false;
}
return true;
}
}