The following code:

<?php

// File Name: auth01.php
// Check to see if $PHP_AUTH_USER already contains info

if (!isset($PHP_AUTH_USER)) {

// If empty, send header causing dialog box to appear
header('WWW-Authenticate: Basic realm="My Private Stuff"');
header('HTTP/1.0 401 Unauthorized');
phpinfo();
exit;
}

// If not empty, display values for variables

else {

echo "
<P>You have entered this username: $PHP_AUTH_USER<br>
You have entered this password: $PHP_AUTH_PW<br>
The authorization type is: $PHP_AUTH_TYPE</p>
";

}

?>

....fails. I believe the reason for this is that I have made the following change to the PHP source:

--- php/sapi/apache/mod_php4.c.paj00    Tue Sep 10 13:59:06 2002
+++ php/sapi/apache/mod_php4.c  Tue Sep 10 13:59:17 2002
@@ -434,7 +434,7 @@
                authorization = table_get(r->headers_in, "Authorization");
        }
        if (authorization
-/*             && !auth_type(r) */
+               && !auth_type(r) 
                && !strcasecmp(getword(r->pool, &authorization, ' '), "Basic")) {
                tmp = uudecode(r->pool, authorization);
                SG(request_info).auth_user = getword_nulls_nc(r->pool, &tmp, ':');

I have made this change because of Bug #18391. However, custom authentication methods, an example of which is entered above, now fail. I would imagine that the two are linked. 

As we use mod_auth_kerb I will not remove this patch because otherwise we leave ourselves quite open to attack from the inside. Any suggestions on how to get custom authentication working alongside the increased kerberos security?

Thanks,


Paul