nextcloud/apps/user_ldap/lib/proxy.php

104 lines
2.9 KiB
PHP
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<?php
/**
* ownCloud LDAP Backend Proxy
*
* @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;
abstract class Proxy {
static private $connectors = array();
public function __construct() {
$this->cache = \OC_Cache::getGlobalCache();
}
private function addConnector($configPrefix) {
self::$connectors[$configPrefix] = new \OCA\user_ldap\lib\Connection($configPrefix);
}
protected function getConnector($configPrefix) {
if(!isset(self::$connectors[$configPrefix])) {
$this->addConnector($configPrefix);
}
return self::$connectors[$configPrefix];
}
protected function getConnectors() {
return self::$connectors;
}
protected function getUserCacheKey($uid) {
return 'user-'.$uid.'-lastSeenOn';
}
protected function getGroupCacheKey($gid) {
return 'group-'.$gid.'-lastSeenOn';
}
abstract protected function callOnLastSeenOn($id, $method, $parameters);
abstract protected function walkBackends($id, $method, $parameters);
/**
* @brief Takes care of the request to the User backend
* @param $uid string, the uid connected to the request
* @param $method string, the method of the user backend that shall be called
* @param $parameters an array of parameters to be passed
* @return mixed, the result of the specified method
*/
protected function handleRequest($id, $method, $parameters) {
if(!$result = $this->callOnLastSeenOn($id, $method, $parameters)) {
$result = $this->walkBackends($id, $method, $parameters);
}
return $result;
}
private function getCacheKey($key) {
$prefix = 'LDAP-Proxy-';
if(is_null($key)) {
return $prefix;
}
return $prefix.md5($key);
}
public function getFromCache($key) {
if(!$this->isCached($key)) {
return null;
}
$key = $this->getCacheKey($key);
return unserialize(base64_decode($this->cache->get($key)));
}
public function isCached($key) {
$key = $this->getCacheKey($key);
return $this->cache->hasKey($key);
}
public function writeToCache($key, $value) {
$key = $this->getCacheKey($key);
$value = base64_encode(serialize($value));
$this->cache->set($key, $value, '2592000');
}
public function clearCache() {
$this->cache->clear($this->getCacheKey(null));
}
}