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https://github.com/EGroupware/egroupware.git
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101 lines
3.1 KiB
PHP
101 lines
3.1 KiB
PHP
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<?php
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/**
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* eGroupWare API - LDAP Authentication with fallback to SQL
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*
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* @link http://www.egroupware.org
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* @author Ralf Becker <ralfbecker@outdoor-training.de>
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* @license http://opensource.org/licenses/lgpl-license.php LGPL - GNU Lesser General Public License
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* @package api
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* @subpackage authentication
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* @version $Id$
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*/
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/**
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* Authentication agains a LDAP Server with fallback to SQL
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*
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* For other fallback types, simply change auth backends in constructor call
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*/
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class auth_fallback implements auth_backend
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{
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/**
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* Primary auth backend
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*
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* @var auth_backend
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*/
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private $primary_backend;
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/**
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* Fallback auth backend
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*
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* @var auth_backend
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*/
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private $fallback_backend;
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/**
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* Constructor
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*/
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function __construct($primary='auth_ldap',$fallback='auth_sql')
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{
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$this->primary_backend = new $primary;
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$this->fallback_backend = new $fallback;
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}
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/**
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* authentication against LDAP with fallback to SQL
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*
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* @param string $username username of account to authenticate
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* @param string $passwd corresponding password
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* @return boolean true if successful authenticated, false otherwise
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*/
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function authenticate($username, $passwd, $passwd_type='text')
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{
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if ($this->primary_backend->authenticate($username, $passwd, $passwd_type))
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{
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egw_cache::setSession(__CLASS__,'backend_used','primary');
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// check if fallback has correct password, if not update it
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if (($account_id = $GLOBALS['egw']->accounts->name2id($username)) &&
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!$this->fallback_backend->authenticate($username,$passwd, $passwd_type))
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{
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$backup_currentapp = $GLOBALS['egw_info']['flags']['currentapp'];
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$GLOBALS['egw_info']['flags']['currentapp'] = 'admin'; // otherwise
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$ret = $this->fallback_backend->change_password('', $passwd, $account_id);
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$GLOBALS['egw_info']['flags']['currentapp'] = $backup_currentapp;
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error_log(__METHOD__."('$username', \$passwd) updated password for #$account_id on fallback ".($ret ? 'successfull' : 'failed!'));
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}
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return true;
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}
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if ($this->fallback_backend->authenticate($username,$passwd, $passwd_type))
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{
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egw_cache::setSession(__CLASS__,'backend_used','fallback');
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return true;
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}
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return false;
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}
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/**
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* changes password in LDAP
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*
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* If $old_passwd is given, the password change is done binded as user and NOT with the
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* "root" dn given in the configurations.
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*
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* @param string $old_passwd must be cleartext or empty to not to be checked
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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, $account_id=0)
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{
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if (egw_cache::getSession(__CLASS__,'backend_used') == 'primary')
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{
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if ($ret = $this->primary_backend->change_password($old_passwd, $new_passwd, $account_id))
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{
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// if password successfully changed on primary, also update fallback
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$this->fallback_backend->change_password($old_passwd, $new_passwd, $account_id);
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}
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return $ret;
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}
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return $this->fallback_backend->change_password($old_passwd, $new_passwd, $account_id);
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}
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}
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