diff --git a/helper/networktool.php b/helper/networktool.php
index 50f599e..d970df3 100644
--- a/helper/networktool.php
+++ b/helper/networktool.php
@@ -82,3 +82,9 @@ if(!function_exists("get_network_hostname")) {
         return $host;
     }
 }
+
+if(!function_exists("check_secure_protocol")) {
+	function check_secure_protocol() {
+		return (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') || $_SERVER['SERVER_PORT'] == 443;
+	}
+}