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<?php
/**
* ownCloud – LDAP Helper
*
* @author Arthur Schiwon
* @copyright 2014 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\user;
use OCA\user_ldap\lib\user\OfflineUser;
use OCA\User_LDAP\Mapping\UserMapping;
/**
* Class DeletedUsersIndex
* @package OCA\User_LDAP
*/
class DeletedUsersIndex {
/**
* @var \OC\Preferences $preferences
*/
protected $preferences;
/**
* @var \OCP\IDBConnection $db
*/
protected $db;
/**
* @var \OCA\User_LDAP\Mapping\UserMapping $mapping
*/
protected $mapping;
/**
* @var int $limit
*/
protected $limit = 10;
/**
* @var array $deletedUsers
*/
protected $deletedUsers = false;
public function __construct(\OC\Preferences $preferences, \OCP\IDBConnection $db, UserMapping $mapping) {
$this->preferences = $preferences;
$this->db = $db;
$this->mapping = $mapping;
}
/**
* returns key to be used against $this->deletedUsers
* @param int $limit
* @param int $offset
* @return string
*/
private function getDeletedUsersCacheKey($limit, $offset) {
return strval($limit) . '.' . strval($offset);
}
/**
* reads LDAP users marked as deleted from the database
* @param int $offset
* @return OCA\user_ldap\lib\user\OfflineUser[]
*/
private function fetchDeletedUsers($offset) {
$deletedUsers = $this->preferences->getUsersForValue(
'user_ldap', 'isDeleted', '1', $this->limit, $offset);
$key = $this->getDeletedUsersCacheKey($this->limit, $offset);
$userObjects = array();
foreach($deletedUsers as $user) {
$userObjects[] = new OfflineUser($user, $this->preferences, $this->db, $this->mapping);
}
$this->deletedUsers[$key] = $userObjects;
if(count($userObjects) > 0) {
$this->hasUsers();
}
return $this->deletedUsers[$key];
}
/**
* returns all LDAP users that are marked as deleted
* @param int|null $offset
* @return OCA\user_ldap\lib\user\OfflineUser[]
*/
public function getUsers($offset = null) {
$key = $this->getDeletedUsersCacheKey($this->limit, $offset);
if(is_array($this->deletedUsers) && isset($this->deletedUsers[$key])) {
return $this->deletedUsers[$key];
}
return $this->fetchDeletedUsers($offset);
}
/**
* whether at least one user was detected as deleted
* @return bool
*/
public function hasUsers() {
if($this->deletedUsers === false) {
$this->fetchDeletedUsers(0);
}
foreach($this->deletedUsers as $batch) {
if(count($batch) > 0) {
return true;
}
}
return false;
}
}
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