egroupware_official/phpgwapi/inc/class.auth_sql.inc.php

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<?php
/**************************************************************************\
* eGroupWare API - Auth from SQL *
* This file written by Dan Kuykendall <seek3r@phpgroupware.org> *
* and Joseph Engo <jengo@phpgroupware.org> *
* Encryption types other than md5() added by *
* Miles Lott <milos@groupwhere.org> based on code from *
* http://www.thomas-alfeld.de/frank/ *
* massive code cleanup and *
* added password migration by *
* Cornelius Weiss <egw@von-und-zu-weiss.de *
* Authentication based on SQL table *
* Copyright (C) 2000, 2001 Dan Kuykendall *
* ------------------------------------------------------------------------ *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
\**************************************************************************/
/* $Id$ */
class auth_
{
var $db = '';
var $previous_login = -1;
function auth_()
{
$this->db = clone($GLOBALS['egw']->db);
$this->db->set_app('phpgwapi');
$this->table = 'egw_accounts';
$this->type = @$GLOBALS['egw_info']['server']['sql_encryption_type'] ?
strtolower($GLOBALS['egw_info']['server']['sql_encryption_type']) : 'md5';
}
/**
* password authentication against password stored in sql datababse
*
* @param string $username username of account to authenticate
* @param string $passwd corresponding password
* @param string $passwd_type='text' 'text' for cleartext passwords (default)
* @return boolean true if successful authenticated, false otherwise
*/
function authenticate($username, $passwd, $passwd_type='text')
{
/* normal web form login */
if($passwd_type == 'text')
{
$this->db->select($this->table,'account_lid,account_pwd,account_lastlogin',array(
'account_lid' => $username,
'account_type' => 'u',
'account_status' => 'A'
),__LINE__,__FILE__);
if(!$this->db->next_record() || !$this->db->f('account_pwd') ||
$GLOBALS['egw_info']['server']['case_sensitive_username'] && $this->db->f('account_lid') != $username)
{
return false;
}
if(!$this->compare_password($passwd,$this->db->f('account_pwd'),$this->type,strtolower($username)))
{
$match = false;
// do we have to migrate an old password ?
if($GLOBALS['egw_info']['server']['pwd_migration_allowed'] && !emplty($GLOBALS['egw_info']['server']['pwd_migration_types']))
{
foreach(explode(',', $GLOBALS['egw_info']['server']['pwd_migration_types']) as $type)
{
if($this->compare_password($passwd,$this->db->f('account_pwd'),$type,strtolower($username)))
{
$account_id = $GLOBALS['egw_info']['user']['account_id'];
$encrypted_passwd = $this->encrypt_sql($passwd);
$this->_update_passwd($encrypted_passwd,$passwd,$account_id);
$match = true;
break;
}
}
}
if (!$match) return false;
}
}
/* Auth via crypted password. NOTE: mail needs cleartext password to authenticate against mailserver! */
else
{
$this->db->select($this->table,'account_lid,account_lastlogin',array(
'account_lid' => $username,
'account_type' => 'u',
'account_status' => 'A',
'account_pwd' => $passwd,
),__LINE__,__FILE__);
if(!$this->db->next_record() ||
$GLOBALS['egw_info']['server']['case_sensitive_username'] && $this->db->f('account_lid') != $username)
{
return false;
}
}
// if this point is reached, auth was successfull
$this->previous_login = $this->db->f('account_lastlogin');
return true;
}
/**
* changes password in sql datababse
*
* @param string $old_passwd must be cleartext
* @param string $new_passwd must be cleartext
* @param int $account_id account id of user whose passwd should be changed
* @return boolean true if password successful changed, false otherwise
*/
function change_password($old_passwd, $new_passwd, $account_id=0)
{
$admin = True;
// Don't allow password changes for other accounts when using XML-RPC
if(!$account_id || $GLOBALS['egw_info']['flags']['currentapp'] == 'login')
{
$admin = False;
$account_id = $GLOBALS['egw_info']['user']['account_id'];
}
$this->db->select($this->table,'account_pwd',array(
'account_id' => $account_id,
'account_type' => 'u',
'account_status' => 'A',
),__LINE__,__FILE__);
if(!$this->db->next_record()) return false; // account not found
/* Check the old_passwd to make sure this is legal */
if(!$admin && !$this->compare_password($old_passwd,$this->db->f('account_pwd'),$this->type,strtolower($username)))
{
return false;
}
/* old password ok, or admin called the function from the admin application (no old passwd available).*/
return $this->_update_passwd($this->encrypt_sql($new_passwd),$new_passwd,$account_id,$admin);
}
/**
* changes password in sql datababse
*
* @internal
* @param string $encrypted_passwd
* @param string $new_passwd cleartext
* @param int $account_id account id of user whose passwd should be changed
* @param boolean $admin=false called by admin, if not update password in the session
* @return boolean true if password successful changed, false otherwise
*/
function _update_passwd($encrypted_passwd,$new_passwd,$account_id,$admin=false)
{
$this->db->update($this->table,array(
'account_pwd' => $encrypted_passwd,
'account_lastpwd_change' => time(),
),array(
'account_id' => $account_id,
),__LINE__,__FILE__);
if(!$this->db->affected_rows()) return false;
if(!$admin)
{
$GLOBALS['egw']->session->appsession('password','phpgwapi',$new_passwd);
}
return $encrypted_passwd;
}
}