isdefaultpassword: use method_exists() to check for check_password

diff --git a/classes/pref/prefs.php b/classes/pref/prefs.php
index fca67d0a6c3056e0a75eeaf9dd6bf485bd6e1d4c..fac4b941bb9f99219d6f23ab988c56c1fd785cde 100644 (file)
--- a/classes/pref/prefs.php
+++ b/classes/pref/prefs.php
@@ -922,7 +922,10 @@ class Pref_Prefs extends Handler_Protected {
        static function isdefaultpassword() {
                $authenticator = PluginHost::getInstance()->get_plugin($_SESSION["auth_module"]);
 
-               if ($authenticator && function_exists($authenticator->check_password) && $authenticator->check_password($_SESSION["uid"], "password")) {
+               if ($authenticator &&
+                method_exists($authenticator, "check_password") &&
+                $authenticator->check_password($_SESSION["uid"], "password")) {
+
                        return true;
                }