106 lines
3 KiB
PHP
106 lines
3 KiB
PHP
<?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;
|
||
|
||
use OCA\user_ldap\lib\Access;
|
||
|
||
abstract class Proxy {
|
||
static private $accesses = array();
|
||
private $ldap = null;
|
||
|
||
public function __construct(ILDAPWrapper $ldap) {
|
||
$this->ldap = $ldap;
|
||
$this->cache = \OC_Cache::getGlobalCache();
|
||
}
|
||
|
||
private function addAccess($configPrefix) {
|
||
$connector = new Connection($this->ldap, $configPrefix);
|
||
self::$accesses[$configPrefix] = new Access($connector, $this->ldap);
|
||
}
|
||
|
||
protected function getAccess($configPrefix) {
|
||
if(!isset(self::$accesses[$configPrefix])) {
|
||
$this->addAccess($configPrefix);
|
||
}
|
||
return self::$accesses[$configPrefix];
|
||
}
|
||
|
||
protected function getUserCacheKey($uid) {
|
||
return 'user-'.$uid.'-lastSeenOn';
|
||
}
|
||
|
||
protected function getGroupCacheKey($gid) {
|
||
return 'group-'.$gid.'-lastSeenOn';
|
||
}
|
||
|
||
abstract protected function callOnLastSeenOn($id, $method, $parameters, $passOnWhen);
|
||
abstract protected function walkBackends($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, $passOnWhen = false) {
|
||
$result = $this->callOnLastSeenOn($id, $method, $parameters, $passOnWhen);
|
||
if($result === $passOnWhen) {
|
||
$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));
|
||
}
|
||
}
|