165 lines
4 KiB
PHP
165 lines
4 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 Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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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 OC\User;
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use \OCP\UserInterface;
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/**
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* Abstract base class for user management. Provides methods for querying backend
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* capabilities.
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*/
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abstract class Backend implements UserInterface {
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/**
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* error code for functions not provided by the user backend
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*/
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const NOT_IMPLEMENTED = -501;
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/**
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* actions that user backends can define
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*/
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const CREATE_USER = 1; // 1 << 0
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const SET_PASSWORD = 16; // 1 << 4
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const CHECK_PASSWORD = 256; // 1 << 8
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const GET_HOME = 4096; // 1 << 12
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const GET_DISPLAYNAME = 65536; // 1 << 16
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const SET_DISPLAYNAME = 1048576; // 1 << 20
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const PROVIDE_AVATAR = 16777216; // 1 << 24
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const COUNT_USERS = 268435456; // 1 << 28
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protected $possibleActions = array(
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self::CREATE_USER => 'createUser',
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self::SET_PASSWORD => 'setPassword',
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self::CHECK_PASSWORD => 'checkPassword',
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self::GET_HOME => 'getHome',
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self::GET_DISPLAYNAME => 'getDisplayName',
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self::SET_DISPLAYNAME => 'setDisplayName',
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self::PROVIDE_AVATAR => 'canChangeAvatar',
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self::COUNT_USERS => 'countUsers',
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);
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/**
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* Get all supported actions
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* @return int bitwise-or'ed actions
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*
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* Returns the supported actions as int to be
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* compared with self::CREATE_USER etc.
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*/
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public function getSupportedActions() {
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$actions = 0;
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foreach($this->possibleActions AS $action => $methodName) {
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if(method_exists($this, $methodName)) {
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$actions |= $action;
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}
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}
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return $actions;
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}
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/**
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* Check if backend implements actions
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* @param int $actions bitwise-or'ed actions
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* @return boolean
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*
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* Returns the supported actions as int to be
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* compared with self::CREATE_USER etc.
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*/
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public function implementsActions($actions) {
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return (bool)($this->getSupportedActions() & $actions);
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}
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/**
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* delete a user
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* @param string $uid The username of the user to delete
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* @return bool
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*
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* Deletes a user
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*/
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public function deleteUser( $uid ) {
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return false;
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}
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/**
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* Get a list of all users
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*
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* @param string $search
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* @param null|int $limit
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* @param null|int $offset
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* @return string[] an array of all uids
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*/
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public function getUsers($search = '', $limit = null, $offset = null) {
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return array();
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}
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/**
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* check if a user exists
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* @param string $uid the username
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* @return boolean
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*/
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public function userExists($uid) {
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return false;
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}
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/**
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* get the user's home directory
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* @param string $uid the username
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* @return boolean
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*/
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public function getHome($uid) {
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return false;
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}
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/**
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* get display name of the user
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* @param string $uid user ID of the user
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* @return string display name
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*/
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public function getDisplayName($uid) {
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return $uid;
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}
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/**
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* Get a list of all display names and user ids.
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*
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* @param string $search
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* @param string|null $limit
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* @param string|null $offset
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* @return array an array of all displayNames (value) and the corresponding uids (key)
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*/
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public function getDisplayNames($search = '', $limit = null, $offset = null) {
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$displayNames = array();
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$users = $this->getUsers($search, $limit, $offset);
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foreach ( $users as $user) {
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$displayNames[$user] = $user;
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}
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return $displayNames;
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}
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/**
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* Check if a user list is available or not
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* @return boolean if users can be listed or not
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*/
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public function hasUserListings() {
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return false;
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}
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}
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