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