[Mediawiki-l] problems with SSL authentication

[Riccardo Veraldi]

Hello,
I enabled the mediawiki SSL authrntication extension.
Following the instructions wiki it works and I can login with my x509 
certificate and user is created the first time.
The problem is tht I got these errors in ssl_error_log


[Mon Dec 06 15:32:44 2010] [error] [client 172.16.10.58] PHP Notice:  
Undefined index:  SSL_CLIENT_S_DN_Email in 
/var/www/html/wiki/LocalSettings.php on line 185
[Mon Dec 06 15:32:44 2010] [error] [client 172.16.10.58] PHP Notice:  
Undefined index:  SSL_CLIENT_S_DN_Email in 
/var/www/html/wiki/LocalSettings.php on line 185


this is my LocalSettings.php


require_once('extensions/SSLAuthPlugin.php');

$ssl_RN = $_SERVER['SSL_CLIENT_S_DN_CN'];
$ssl_UN = $_SERVER['SSL_CLIENT_S_DN_CN'];

if ($_SERVER['SSL_CLIENT_S_DN_Email'] != '' || 
$_SERVER['SSL_CLIENT_S_DN_Email'] != NULL )
         $ssl_email = $_SERVER['SSL_CLIENT_S_DN_Email'];
else
         $ssl_email = '';

        SSLAuthSetup();


actually error reported correstpons to the line above where variable 
SSL_CLIENT_S_DN_CN and SSL_CLIENT_S_DN_Email are used.

any clue on this ?

thanks

Rick