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<?php
/**
* Active Directory authentication backend for DokuWiki
*
* This makes authentication with a Active Directory server much easier
* than when using the normal LDAP backend by utilizing the adLDAP library
*
* Usage:
* Set DokuWiki's local.protected.php auth setting to read
*
* $conf['useacl'] = 1;
* $conf['disableactions'] = 'register';
* $conf['autopasswd'] = 0;
* $conf['authtype'] = 'ad';
* $conf['passcrypt'] = 'ssha';
*
* $conf['auth']['ad']['account_suffix'] = '@my.domain.org';
* $conf['auth']['ad']['base_dn'] = 'DC=my,DC=domain,DC=org';
* $conf['auth']['ad']['domain_controllers'] = 'srv1.domain.org,srv2.domain.org';
*
* //optional:
* $conf['auth']['ad']['sso'] = 1;
* $conf['auth']['ad']['ad_username'] = 'root';
* $conf['auth']['ad']['ad_password'] = 'pass';
* $conf['auth']['ad']['real_primarygroup'] = 1;
* $conf['auth']['ad']['use_ssl'] = 1;
* $conf['auth']['ad']['debug'] = 1;
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author James Van Lommel <jamesvl@gmail.com>
* @link http://www.nosq.com/blog/2005/08/ldap-activedirectory-and-dokuwiki/
* @author Andreas Gohr <andi@splitbrain.org>
*/
require_once(DOKU_INC.'inc/adLDAP.php');
/**
* Prepare SSO
*/
if($_SERVER['REMOTE_USER'] && $conf['auth']['ad']['sso']){
// remove possible domain prefix
list($dom,$usr) = explode('\\',$_SERVER['REMOTE_USER'],2);
if(!$usr) $usr = $dom;
// remove possible Kerberos domain
list($usr,$dom) = explode('@',$usr);
$_SERVER['REMOTE_USER'] = $usr;
unset($usr);
unset($dom);
// we need to simulate a login
if(empty($_COOKIE[DOKU_COOKIE])){
$_REQUEST['u'] = $_SERVER['REMOTE_USER'];
$_REQUEST['p'] = 'sso_only';
}
}
class auth_ad extends auth_basic {
var $cnf = null;
var $adldap = null;
/**
* Constructor
*/
function auth_ad() {
global $conf;
$this->cnf = $conf['auth']['ad'];
// ldap extension is needed
if (!function_exists('ldap_connect')) {
if ($this->cnf['debug'])
msg("LDAP err: PHP LDAP extension not found.",-1);
$this->success = false;
return;
}
// prepare adLDAP object
$opts = $this->cnf;
$opts['domain_controllers'] = explode(',',$opts['domain_controllers']);
$opts['domain_controllers'] = array_map('trim',$opts['domain_controllers']);
$opts['domain_controllers'] = array_filter($opts['domain_controllers']);
// connect
try {
$this->adldap = new adLDAP($opts);
} catch (adLDAPException $e) {
$this->success = false;
}
// we currently just handle authentication, so no capabilities are set
}
/**
* Check user+password [required auth function]
*
* Checks if the given user exists and the given
* plaintext password is correct by trying to bind
* to the LDAP server
*
* @author James Van Lommel <james@nosq.com>
* @return bool
*/
function checkPass($user, $pass){
if($_SERVER['REMOTE_USER'] &&
$_SERVER['REMOTE_USER'] == $user &&
$this->cnf['sso']) return true;
return $this->adldap->authenticate($user, $pass);
}
/**
* Return user info [required auth function]
*
* Returns info about the given user needs to contain
* at least these fields:
*
* name string full name of the user
* mail string email addres of the user
* grps array list of groups the user is in
*
* This LDAP specific function returns the following
* addional fields:
*
* dn string distinguished name (DN)
* uid string Posix User ID
*
* @author James Van Lommel <james@nosq.com>
*/
function getUserData($user){
global $conf;
//get info for given user
$result = $this->adldap->user_info($user);
//general user info
$info['name'] = $result[0]['displayname'][0];
$info['mail'] = $result[0]['mail'][0];
$info['uid'] = $result[0]['samaccountname'][0];
$info['dn'] = $result[0]['dn'];
if(!$info['mail']) $info['mail'] = cleanID($user).'@projektron.de';
// handle ActiveDirectory memberOf
$info['grps'] = $this->adldap->user_groups($user);
if (is_array($info['grps'])) {
foreach ($info['grps'] as $ndx => $group) {
$info['grps'][$ndx] = $this->_sanitizeGroupName($group);
}
}
// always add the default group to the list of groups
if(!in_array($conf['defaultgroup'],$info['grps'])){
$info['grps'][] = $conf['defaultgroup'];
}
return $info;
}
/**
* Make AD group names usable by DokuWiki.
*
* Removes backslashes ('\'), pound signs ('#'), and converts spaces to underscores.
*
* @author James Van Lommel (jamesvl@gmail.com)
*/
function _sanitizeGroupName($name) {
$sName = str_replace('\\', '', $name);
$sName = str_replace('#', '', $sName);
$sName = preg_replace('[\s]', '_', $sName);
return $sName;
}
}
//Setup VIM: ex: et ts=4 enc=utf-8 :
|
