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<?php
require_once(dirname(__FILE__).'/ldap_conf.inc');
function ldap_authenticate()
{
global $pluginconfig;
if($_SERVER['PHP_AUTH_USER']!="" && $_SERVER['PHP_AUTH_PW']!="")
{
$ds=ldap_connect($pluginconfig['host']);
// if binding is required for LDAP search
if(isset($pluginconfig['bind_dn']) && isset($pluginconfig['bind_passwd']))
{
@ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
if(!($r=@ldap_bind($ds, $pluginconfig['bind_dn'], $pluginconfig['bind_passwd'])))
return -2; // auth unsuccessful (bind error)
}
// perform the search
if(($r=ldap_search($ds, $pluginconfig['basedn'], '(&('.$pluginconfig['user_attr'].'='.$_SERVER['PHP_AUTH_USER'].')'.(isset($pluginconfig['filter']) && $pluginconfig['filter']!='' ? '('.$pluginconfig['filter'].')' : '' ).')'))!==false)
{
$result=@ldap_get_entries($ds, $r);
if($result[0])
{
@ldap_set_option($ds, LDAP_OPT_PROTOCOL_VERSION, 3);
if(@ldap_bind($ds, $result[0]['dn'], $_SERVER['PHP_AUTH_PW']))
{
@ldap_unbind($bi);
return 1; // auth successful
}
}
}
return -1; // auth unsuccessful
}
return 0; // empty username or password
}
?>
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