mirror of
https://github.com/EGroupware/egroupware.git
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176 lines
7.1 KiB
PHP
176 lines
7.1 KiB
PHP
<?php
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/**************************************************************************\
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* eGroupWare API - Auth from LDAP *
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* This file written by Lars Kneschke <lkneschke@linux-at-work.de> *
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* and Joseph Engo <jengo@phpgroupware.org> *
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* Authentication based on LDAP Server *
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* Copyright (C) 2000, 2001 Joseph Engo *
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* Copyright (C) 2002, 2003 Lars Kneschke *
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* ------------------------------------------------------------------------ *
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* This library is part of the eGroupWare API *
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* http://www.egroupware.org/api *
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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 $previous_login = -1;
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/**
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* authentication against LDAP
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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, $passwd)
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{
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if (ereg('[()|&=*,<>!~]',$username))
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{
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return False;
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}
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// allow non-ascii in username & password
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$username = $GLOBALS['egw']->translation->convert($username,$GLOBALS['egw']->translation->charset(),'utf-8');
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$passwd = $GLOBALS['egw']->translation->convert($passwd,$GLOBALS['egw']->translation->charset(),'utf-8');
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if(!$ldap = $GLOBALS['egw']->common->ldapConnect())
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{
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$GLOBALS['egw']->log->message('F-Abort, Failed connecting to LDAP server for authenication, execution stopped');
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$GLOBALS['egw']->log->commit();
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return False;
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}
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/* Login with the LDAP Admin. User to find the User DN. */
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if(!@ldap_bind($ldap, $GLOBALS['egw_info']['server']['ldap_root_dn'], $GLOBALS['egw_info']['server']['ldap_root_pw']))
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{
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return False;
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}
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/* find the dn for this uid, the uid is not always in the dn */
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$attributes = array('uid','dn','givenName','sn','mail','uidNumber','gidNumber','shadowExpire');
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$filter = $GLOBALS['egw_info']['server']['ldap_search_filter'] ? $GLOBALS['egw_info']['server']['ldap_search_filter'] : '(uid=%user)';
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$filter = str_replace(array('%user','%domain'),array($username,$GLOBALS['egw_info']['user']['domain']),$filter);
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if ($GLOBALS['egw_info']['server']['account_repository'] == 'ldap')
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{
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$filter = "(&$filter(objectclass=posixaccount))";
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}
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$sri = ldap_search($ldap, $GLOBALS['egw_info']['server']['ldap_context'], $filter, $attributes);
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$allValues = ldap_get_entries($ldap, $sri);
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if ($allValues['count'] > 0)
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{
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if ($GLOBALS['egw_info']['server']['case_sensitive_username'] == true &&
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$allValues[0]['uid'][0] != $username)
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{
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return false;
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}
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if ($GLOBALS['egw_info']['server']['account_repository'] == 'ldap' &&
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isset($allValues[0]['shawdowexpire']) && $allValues[0]['shawdowexpire'][0]*24*3600 < time())
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{
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return false; // account is expired
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}
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$userDN = $allValues[0]['dn'];
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/*
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generate a bogus password to pass if the user doesn't give us one
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this gets around systems that are anonymous search enabled
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*/
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if (empty($passwd))
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{
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$passwd = crypt(microtime());
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}
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// try to bind as the user with user suplied password
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if (@ldap_bind($ldap, $userDN, $passwd))
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{
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if ($GLOBALS['egw_info']['server']['account_repository'] != 'ldap')
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{
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if (!$account->account_id && $GLOBALS['egw_info']['server']['auto_create_acct'])
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{
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// create a global array with all availible info about that account
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$GLOBALS['auto_create_acct'] = array();
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foreach(array(
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'givenname' => 'firstname',
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'sn' => 'lastname',
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'uidnumber' => 'account_id',
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'mail' => 'email',
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'gidnumber' => 'primary_group',
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) as $ldap_name => $acct_name)
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{
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$GLOBALS['auto_create_acct'][$acct_name] =
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$GLOBALS['egw']->translation->convert($allValues[0][$ldap_name][0],'utf-8');
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}
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return True;
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}
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return ($id = $GLOBALS['egw']->accounts->name2id($username,'account_lid','u')) &&
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$GLOBALS['egw']->accounts->id2name($id,'account_status') == 'A';
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}
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return True;
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}
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}
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// dn not found or password wrong
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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, $account_id=0)
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{
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if (!$account_id)
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{
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$username = $GLOBALS['egw_info']['user']['account_lid'];
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}
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else
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{
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$username = $GLOBALS['egw']->translation->convert($GLOBALS['egw']->accounts->id2name($account_id),
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$GLOBALS['egw']->translation->charset(),'utf-8');
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}
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//echo "<p>auth_ldap::change_password('$old_password','$new_passwd',$account_id) username='$username'</p>\n";
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$filter = $GLOBALS['egw_info']['server']['ldap_search_filter'] ? $GLOBALS['egw_info']['server']['ldap_search_filter'] : '(uid=%user)';
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$filter = str_replace(array('%user','%domain'),array($username,$GLOBALS['egw_info']['user']['domain']),$filter);
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$ds = $GLOBALS['egw']->common->ldapConnect();
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$sri = ldap_search($ds, $GLOBALS['egw_info']['server']['ldap_context'], $filter);
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$allValues = ldap_get_entries($ds, $sri);
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$entry['userpassword'] = $this->encrypt_password($new_passwd);
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$dn = $allValues[0]['dn'];
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if($old_passwd) // if old password given (not called by admin) --> bind as that user to change the pw
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{
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$ds = $GLOBALS['egw']->common->ldapConnect('',$dn,$old_passwd);
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}
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if (!@ldap_modify($ds, $dn, $entry))
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{
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return false;
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}
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if($old_passwd) // if old password given (not called by admin) update the password in the session
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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 $entry['userpassword'];
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}
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}
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