nextcloud/lib/User/database.php

179 lines
4.4 KiB
PHP

<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @copyright 2010 Frank Karlitschek karlitschek@kde.org
*
* 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/>.
*
*/
/*
*
* The following SQL statement is just a help for developers and will not be
* executed!
*
* CREATE TABLE `users` (
* `uid` varchar(64) COLLATE utf8_unicode_ci NOT NULL,
* `password` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
* PRIMARY KEY (`uid`)
* ) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
*
*/
require_once('User/backend.php');
/**
* Class for user management in a SQL Database (e.g. MySQL, SQLite)
*
*/
class OC_USER_DATABASE extends OC_USER_BACKEND {
static private $userGroupCache=array();
/**
* Try to create a new user
*
* @param string $username The username of the user to create
* @param string $password The password of the new user
*/
public static function createUser( $uid, $password ){
$query = OC_DB::prepare( "SELECT * FROM `*PREFIX*users` WHERE `uid` = ?" );
$result = $query->execute( array( $uid ));
// Check if the user already exists
if ( $result->numRows() > 0 ){
return false;
}
else{
$query = OC_DB::prepare( "INSERT INTO `*PREFIX*users` ( `uid`, `password` ) VALUES( ?, ? )" );
$result = $query->execute( array( $uid, sha1( $password )));
return $result ? true : false;
}
}
/**
* Try to delete a user
*
* @param string $username The username of the user to delete
*/
public static function deleteUser( $uid ){
$query = OC_DB::prepare( "DELETE FROM `*PREFIX*users` WHERE `uid` = ?" );
$result = $query->execute( array( $uid ));
return true;
}
/**
* Try to login a user
*
* @param string $username The username of the user to log in
* @param string $password The password of the user
*/
public static function login( $username, $password ){
$query = OC_DB::prepare( "SELECT `uid` FROM `*PREFIX*users` WHERE `uid` = ? AND `password` = ?" );
$result = $query->execute( array( $username, sha1( $password )));
if( $result->numRows() > 0 ){
$row = $result->fetchRow();
$_SESSION['user_id'] = $row["uid"];
return true;
}
else{
return false;
}
}
/**
* Kick the user
*
*/
public static function logout() {
OC_LOG::add( "core", $_SESSION['user_id'], "logout" );
$_SESSION['user_id'] = false;
}
/**
* Check if the user is logged in
*
*/
public static function isLoggedIn() {
if( isset($_SESSION['user_id']) AND $_SESSION['user_id'] ){
return true;
}
else{
return false;
}
}
/**
* Generate a random password
*/
public static function generatePassword(){
return uniqId();
}
/**
* Set the password of a user
*
* @param string $username User who password will be changed
* @param string $password The new password for the user
*/
public static function setPassword( $username, $password ){
$query = OC_DB::prepare( "UPDATE `*PREFIX*users` SET `password` = ? WHERE `uid` = ?" );
$result = $query->execute( array( sha1( $password ), $username ));
if( $result->numRows() > 0 ){
return true;
}
else{
return false;
}
}
/**
* Check if the password of the user is correct
*
* @param string $username Name of the user
* @param string $password Password of the user
*/
public static function checkPassword( $username, $password ){
$query = OC_DB::prepare( "SELECT `uid` FROM `*PREFIX*users` WHERE `uid` = ? AND `password` = ?" );
$result = $query->execute( array( $username, sha1( $password )));
if( $result->numRows() > 0 ){
return true;
}
else{
return false;
}
}
/**
* get a list of all users
*
*/
public static function getUsers(){
$query = OC_DB::prepare( "SELECT `uid` FROM `*PREFIX*users`" );
$result = $query->execute();
$users=array();
while( $row = $result->fetchRow()){
$users[] = $row["uid"];
}
return $users;
}
}