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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 {
/**
* returns prefixes for each saved LDAP/AD server configuration.
* @param bool $activeConfigurations optional, whether only active configuration shall be
* retrieved, defaults to false
* @return array with a list of the available prefixes
*
* Configuration prefixes are used to set up configurations for n LDAP or
* AD servers. Since configuration is stored in the database, table
* appconfig under appid user_ldap, the common identifiers in column
* 'configkey' have a prefix. The prefix for the very first server
* configuration is empty.
* Configkey Examples:
* Server 1: ldap_login_filter
* Server 2: s1_ldap_login_filter
* Server 3: s2_ldap_login_filter
*
* The prefix needs to be passed to the constructor of Connection class,
* except the default (first) server shall be connected to.
*
*/
static public function getServerConfigurationPrefixes($activeConfigurations = false) {
$referenceConfigkey = 'ldap_configuration_active';
$sql = '
SELECT DISTINCT `configkey`
FROM `*PREFIX*appconfig`
WHERE `appid` = \'user_ldap\'
AND `configkey` LIKE ?
';
if($activeConfigurations) {
if (\OC_Config::getValue( 'dbtype', 'sqlite' ) === 'oci') {
//FIXME oracle hack: need to explicitly cast CLOB to CHAR for comparison
$sql .= ' AND to_char(`configvalue`)=\'1\'';
} else {
$sql .= ' AND `configvalue` = \'1\'';
}
}
$stmt = \OCP\DB::prepare($sql);
$serverConfigs = $stmt->execute(array('%'.$referenceConfigkey))->fetchAll();
$prefixes = array();
foreach($serverConfigs as $serverConfig) {
$len = strlen($serverConfig['configkey']) - strlen($referenceConfigkey);
$prefixes[] = substr($serverConfig['configkey'], 0, $len);
}
return $prefixes;
}
/**
*
* determines the host for every configured connection
* @return array an array with configprefix as keys
*
*/
static public function getServerConfigurationHosts() {
$referenceConfigkey = 'ldap_host';
$query = '
SELECT DISTINCT `configkey`, `configvalue`
FROM `*PREFIX*appconfig`
WHERE `appid` = \'user_ldap\'
AND `configkey` LIKE ?
';
$query = \OCP\DB::prepare($query);
$configHosts = $query->execute(array('%'.$referenceConfigkey))->fetchAll();
$result = array();
foreach($configHosts as $configHost) {
$len = strlen($configHost['configkey']) - strlen($referenceConfigkey);
$prefix = substr($configHost['configkey'], 0, $len);
$result[$prefix] = $configHost['configvalue'];
}
return $result;
}
/**
* deletes a given saved LDAP/AD server configuration.
* @param string $prefix the configuration prefix of the config to delete
* @return bool true on success, false otherwise
*/
static public function deleteServerConfiguration($prefix) {
if(!in_array($prefix, self::getServerConfigurationPrefixes())) {
return false;
}
$saveOtherConfigurations = '';
if(empty($prefix)) {
$saveOtherConfigurations = 'AND `configkey` NOT LIKE \'s%\'';
}
$query = \OCP\DB::prepare('
DELETE
FROM `*PREFIX*appconfig`
WHERE `configkey` LIKE ?
'.$saveOtherConfigurations.'
AND `appid` = \'user_ldap\'
AND `configkey` NOT IN (\'enabled\', \'installed_version\', \'types\', \'bgjUpdateGroupsLastRun\')
');
$delRows = $query->execute(array($prefix.'%'));
if(\OCP\DB::isError($delRows)) {
return false;
}
if($delRows === 0) {
return false;
}
return true;
}
/**
* Truncate's the given mapping table
*
* @param string $mapping either 'user' or 'group'
* @return bool true on success, false otherwise
*/
static public function clearMapping($mapping) {
if($mapping === 'user') {
$table = '`*PREFIX*ldap_user_mapping`';
} else if ($mapping === 'group') {
$table = '`*PREFIX*ldap_group_mapping`';
} else {
return false;
}
$connection = \OC_DB::getConnection();
$sql = $connection->getDatabasePlatform()->getTruncateTableSQL($table);
$query = \OCP\DB::prepare($sql);
$res = $query->execute();
if(\OCP\DB::isError($res)) {
return false;
}
return true;
}
/**
* extracts the domain from a given URL
* @param string $url the URL
* @return string|false domain as string on success, false otherwise
*/
static public function getDomainFromURL($url) {
$uinfo = parse_url($url);
if(!is_array($uinfo)) {
return false;
}
$domain = false;
if(isset($uinfo['host'])) {
$domain = $uinfo['host'];
} else if(isset($uinfo['path'])) {
$domain = $uinfo['path'];
}
return $domain;
}
}
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