nextcloud/lib/user/backend.php

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<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @author Dominik Schmidt
* @copyright 2010 Frank Karlitschek karlitschek@kde.org
* @copyright 2011 Dominik Schmidt dev@dominik-schmidt.de
*
* 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/>.
*
*/
/**
* error code for functions not provided by the user backend
*/
define('OC_USER_BACKEND_NOT_IMPLEMENTED', -501);
/**
* actions that user backends can define
*/
define('OC_USER_BACKEND_CREATE_USER', 0x000001);
define('OC_USER_BACKEND_DELETE_USER', 0x000010);
define('OC_USER_BACKEND_SET_PASSWORD', 0x000100);
define('OC_USER_BACKEND_CHECK_PASSWORD', 0x001000);
define('OC_USER_BACKEND_GET_USERS', 0x010000);
define('OC_USER_BACKEND_USER_EXISTS', 0x100000);
/**
* abstract base class for user management
* subclass this for your own backends and see OC_USER_EXAMPLE for descriptions
*/
abstract class OC_USER_BACKEND {
protected $possibleActions = array(
OC_USER_BACKEND_CREATE_USER => 'createUser',
OC_USER_BACKEND_DELETE_USER => 'deleteUser',
OC_USER_BACKEND_SET_PASSWORD => 'setPassword',
OC_USER_BACKEND_CHECK_PASSWORD => 'checkPassword',
OC_USER_BACKEND_GET_USERS => 'getUsers',
OC_USER_BACKEND_USER_EXISTS => 'userExists'
);
/**
* @brief Get all supported actions
* @returns bitwise-or'ed actions
*
* Returns the supported actions as int to be
* compared with OC_USER_BACKEND_CREATE_USER etc.
*/
public function getSupportedActions(){
$actions = 0;
foreach($this->possibleActions AS $action => $methodName){
if(method_exists($this, $methodName)) {
$actions |= $action;
}
}
return $actions;
}
/**
* @brief Check if backend implements actions
* @param $actions bitwise-or'ed actions
* @returns boolean
*
* Returns the supported actions as int to be
* compared with OC_USER_BACKEND_CREATE_USER etc.
*/
public function implementsActions($actions){
return (bool)($this->getSupportedActions() & $actions);
}
}