[horde] LDAP Preference hooks not working

[Zachariah Mully]

Hello all-
	I recently switched the authentication on our FRAMEWORK_3 install from
using IMAP to straight LDAP for performance reasons. This in turn
screwed up the default identity, as this is apparently set automatically
when auth'ed via IMAP, but not via LDAP. I am storing preferences in
mysql, but I want to populate the users full name and email address from
my LDAP directory.
	I found the hooks for the fullname and from_addr and tried each of the
suggested LDAP hooks on the wiki
(http://wiki.horde.org/CustomizingPreferences).
	When I configure these hooks, they break the login, as the first load
of the login page attempts to auth as a NULL user, so my LDAP binddn
ends up looking like 'uid=,ou=Users,ou=OxObjects,dc=smartbrief,dc=com'
and the result returned is NULL, so it throws this error "Notice:
Undefined offset: 0 in /var/www/horde3/config/hooks.php on line 163".
This goes for any of the suggested LDAP hooks on the wiki, but in my
instance I'm currently trying to use:

if (!function_exists('_prefs_hook_fullname')) {
    function _prefs_hook_fullname($uid = null)
    {
        global $conf;

        if (is_null($uid)) {
            $uid = Auth::getAuth();
        }

        $entry="Fullname hook was called for user $uid";
        Horde::logMessage($entry, __FILE__, __LINE__, PEAR_LOG_INFO);

        $ds = @ldap_connect($conf['auth']['params']['hostspec']);

        @ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION,
$conf['auth']['params']['version']);
        @ldap_bind($ds, $conf['auth']['params']['binddn'],
$conf['auth']['params']['password']);
        $searchResult = @ldap_search($ds,
$conf['auth']['params']['basedn'], $conf['auth']['params']['uid'] .
'=' . $uid);

        $information = @ldap_get_entries($ds, $searchResult);
        ldap_close($ds);
 
	$entry="From_addr result is $information[0]['cn'][0]";
        Horde::logMessage($entry, __FILE__, __LINE__, PEAR_LOG_INFO);
        
	return $information[0]['cn'][0];

    }
}


I don't see how no one else is having this problem, so does anyone have
any suggestions as to how to fix this?

Thanks,
Z