first commit

application/helpers/authorization_helper.php

@@ -0,0 +1,24 @@
+<?php
+defined('BASEPATH') or exit('No direct script access allowed');
+class AUTHORIZATION
+{
+    public static function validateTimestamp($token)
+    {
+        $CI = &get_instance();
+        $token = self::validateToken($token);
+        if ($token != false && (now() - $token->timestamp < ($CI->config->item('token_timeout') * 60))) {
+            return $token;
+        }
+        return false;
+    }
+    public static function validateToken($token)
+    {
+        $CI = &get_instance();
+        return JWT::decode($token, $CI->config->item('jwt_key'));
+    }
+    public static function generateToken($data)
+    {
+        $CI = &get_instance();
+        return JWT::encode($data, $CI->config->item('jwt_key'));
+    }
+}