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<?php
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/**
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* ownCloud – LDAP Helper
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*
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* @author Arthur Schiwon
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* @copyright 2014 Arthur Schiwon <blizzz@owncloud.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library 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
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OCA\user_ldap\lib\user;
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use OCA\user_ldap\lib\user\OfflineUser;
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use OCA\User_LDAP\Mapping\UserMapping;
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/**
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* Class DeletedUsersIndex
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* @package OCA\User_LDAP
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*/
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class DeletedUsersIndex {
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/**
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* @var \OC\Preferences $preferences
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*/
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protected $preferences;
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/**
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* @var \OCP\IDBConnection $db
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*/
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protected $db;
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/**
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* @var \OCA\User_LDAP\Mapping\UserMapping $mapping
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*/
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protected $mapping;
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/**
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* @var int $limit
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*/
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protected $limit = 10;
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/**
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* @var array $deletedUsers
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*/
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protected $deletedUsers = false;
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public function __construct(\OC\Preferences $preferences, \OCP\IDBConnection $db, UserMapping $mapping) {
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$this->preferences = $preferences;
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$this->db = $db;
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$this->mapping = $mapping;
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}
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/**
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* returns key to be used against $this->deletedUsers
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* @param int $limit
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* @param int $offset
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* @return string
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*/
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private function getDeletedUsersCacheKey($limit, $offset) {
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return strval($limit) . '.' . strval($offset);
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}
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/**
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* reads LDAP users marked as deleted from the database
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* @param int $offset
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* @return OCA\user_ldap\lib\user\OfflineUser[]
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*/
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private function fetchDeletedUsers($offset) {
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$deletedUsers = $this->preferences->getUsersForValue(
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'user_ldap', 'isDeleted', '1', $this->limit, $offset);
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$key = $this->getDeletedUsersCacheKey($this->limit, $offset);
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$userObjects = array();
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foreach($deletedUsers as $user) {
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$userObjects[] = new OfflineUser($user, $this->preferences, $this->db, $this->mapping);
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}
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$this->deletedUsers[$key] = $userObjects;
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if(count($userObjects) > 0) {
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$this->hasUsers();
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}
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return $this->deletedUsers[$key];
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}
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/**
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* returns all LDAP users that are marked as deleted
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* @param int|null $offset
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* @return OCA\user_ldap\lib\user\OfflineUser[]
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*/
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public function getUsers($offset = null) {
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$key = $this->getDeletedUsersCacheKey($this->limit, $offset);
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if(is_array($this->deletedUsers) && isset($this->deletedUsers[$key])) {
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return $this->deletedUsers[$key];
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}
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return $this->fetchDeletedUsers($offset);
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}
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/**
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* whether at least one user was detected as deleted
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* @return bool
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*/
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public function hasUsers() {
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if($this->deletedUsers === false) {
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$this->fetchDeletedUsers(0);
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}
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foreach($this->deletedUsers as $batch) {
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if(count($batch) > 0) {
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return true;
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}
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}
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return false;
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}
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}
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