Treat objectSid as binary attribute

Author: tvdijen

lib/Auth/Ldap.php

@@ -479,6 +479,7 @@ public function searchformultiple(
                     // base64 encode binary attributes
                     if (strtolower($name) === 'jpegphoto'
                         || strtolower($name) === 'objectguid'
+                        || strtolower($name) === 'objectsid'
                         || strtolower($name) === 'ms-ds-consistencyguid'
                     ) {
                         $results[$i][$name][$k] = base64_encode($attribute[$k]);
@@ -664,6 +665,7 @@ public function getAttributes($dn, $attributes = null, $maxsize = null)
                 // Base64 encode binary attributes
                 if (strtolower($name) === 'jpegphoto'
                     || strtolower($name) === 'objectguid'
+                    || strtolower($name) === 'objectsid'
                     || strtolower($name) === 'ms-ds-consistencyguid'
                 ) {
                     $values[] = base64_encode($value);