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207 lines
5.3 KiB
PHP
207 lines
5.3 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Christopher Schäpers <kondou@ts.unde.re>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin McCorkell <robin@mccorkell.me.uk>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Roger Szabo <roger.szabo@web.de>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OCA\User_LDAP;
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use OCA\User_LDAP\Mapping\UserMapping;
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use OCA\User_LDAP\Mapping\GroupMapping;
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use OCA\User_LDAP\User\Manager;
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abstract class Proxy {
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static private $accesses = array();
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private $ldap = null;
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/** @var \OCP\ICache|null */
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private $cache;
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/**
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* @param ILDAPWrapper $ldap
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*/
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public function __construct(ILDAPWrapper $ldap) {
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$this->ldap = $ldap;
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$memcache = \OC::$server->getMemCacheFactory();
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if($memcache->isAvailable()) {
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$this->cache = $memcache->createDistributed();
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}
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}
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/**
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* @param string $configPrefix
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*/
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private function addAccess($configPrefix) {
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static $ocConfig;
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static $fs;
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static $log;
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static $avatarM;
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static $userMap;
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static $groupMap;
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static $db;
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static $coreUserManager;
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static $coreNotificationManager;
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if($fs === null) {
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$ocConfig = \OC::$server->getConfig();
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$fs = new FilesystemHelper();
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$log = new LogWrapper();
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$avatarM = \OC::$server->getAvatarManager();
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$db = \OC::$server->getDatabaseConnection();
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$userMap = new UserMapping($db);
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$groupMap = new GroupMapping($db);
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$coreUserManager = \OC::$server->getUserManager();
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$coreNotificationManager = \OC::$server->getNotificationManager();
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}
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$userManager =
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new Manager($ocConfig, $fs, $log, $avatarM, new \OCP\Image(), $db,
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$coreUserManager, $coreNotificationManager);
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$connector = new Connection($this->ldap, $configPrefix);
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$access = new Access($connector, $this->ldap, $userManager, new Helper($ocConfig), $ocConfig, $coreUserManager);
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$access->setUserMapper($userMap);
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$access->setGroupMapper($groupMap);
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self::$accesses[$configPrefix] = $access;
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}
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/**
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* @param string $configPrefix
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* @return mixed
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*/
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protected function getAccess($configPrefix) {
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if(!isset(self::$accesses[$configPrefix])) {
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$this->addAccess($configPrefix);
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}
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return self::$accesses[$configPrefix];
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}
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/**
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* @param string $uid
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* @return string
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*/
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protected function getUserCacheKey($uid) {
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return 'user-'.$uid.'-lastSeenOn';
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}
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/**
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* @param string $gid
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* @return string
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*/
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protected function getGroupCacheKey($gid) {
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return 'group-'.$gid.'-lastSeenOn';
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}
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/**
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* @param string $id
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* @param string $method
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* @param array $parameters
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* @param bool $passOnWhen
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* @return mixed
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*/
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abstract protected function callOnLastSeenOn($id, $method, $parameters, $passOnWhen);
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/**
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* @param string $id
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* @param string $method
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* @param array $parameters
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* @return mixed
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*/
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abstract protected function walkBackends($id, $method, $parameters);
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/**
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* @param string $id
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* @return Access
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*/
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abstract public function getLDAPAccess($id);
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/**
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* Takes care of the request to the User backend
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* @param string $id
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* @param string $method string, the method of the user backend that shall be called
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* @param array $parameters an array of parameters to be passed
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* @param bool $passOnWhen
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* @return mixed, the result of the specified method
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*/
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protected function handleRequest($id, $method, $parameters, $passOnWhen = false) {
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$result = $this->callOnLastSeenOn($id, $method, $parameters, $passOnWhen);
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if($result === $passOnWhen) {
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$result = $this->walkBackends($id, $method, $parameters);
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}
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return $result;
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}
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/**
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* @param string|null $key
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* @return string
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*/
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private function getCacheKey($key) {
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$prefix = 'LDAP-Proxy-';
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if($key === null) {
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return $prefix;
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}
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return $prefix.hash('sha256', $key);
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}
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/**
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* @param string $key
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* @return mixed|null
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*/
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public function getFromCache($key) {
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if($this->cache === null) {
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return null;
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}
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$key = $this->getCacheKey($key);
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$value = $this->cache->get($key);
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if ($value === null) {
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return null;
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}
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return json_decode(base64_decode($value));
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}
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/**
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* @param string $key
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* @param mixed $value
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*/
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public function writeToCache($key, $value) {
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if($this->cache === null) {
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return;
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}
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$key = $this->getCacheKey($key);
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$value = base64_encode(json_encode($value));
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$this->cache->set($key, $value, 2592000);
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}
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public function clearCache() {
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if($this->cache === null) {
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return;
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}
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$this->cache->clear($this->getCacheKey(null));
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}
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}
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