added setting for user session duration

src/Auth/Business/JwtHelper.php

         return $data;
     }
 
-    public static function encode($data)
+    public static function encode($data, $session_time)
     {
         $date = new \DateTime("now", new \DateTimeZone("Europe/Paris"));
-        $date->modify("+30 day");
+        $date->modify("+${session_time} day");
         $data[self::EXPIRATION_KEY] = $date->getTimestamp();
 
         return base64_encode(mcrypt_encrypt(MCRYPT_TRIPLEDES, env("MCRYPT_KEY"), \JWT::encode($data, env("JWT_KEY")), "ecb"));

src/Auth/Business/LuticateSettingsBusiness.php

         return $setting;
     }
 
+    public static function getEffectiveSettingValue($user_id, $setting_name)
+    {
+        $setting = self::getEffectiveSetting($user_id, $setting_name);
+        return $setting["Value"];
+    }
+
     public static function getAllEffectiveSetting($user_id)
     {
         return LuticateSettingsDataAccess::getAllEffectiveSetting($user_id)->map(function($value)
 
     public static function get($setting_name)
     {
-        $perm = LuticateSettingsDataAccess::getByName($setting_name);
-        if (is_null($perm)) {
+        $setting = LuticateSettingsDataAccess::getByName($setting_name);
+        if (is_null($setting)) {
             self::notFound("Permission not found");
         }
-        $perm->setValue(json_decode($perm->getValue()));
-        return $perm;
+        $setting->setValue(json_decode($setting->getValue()));
+        return $setting;
+    }
+
+    public static function getValue($setting_name)
+    {
+        $setting = self::get($setting_name);
+        return $setting->getValue();
     }
 
     /**

src/Auth/Business/LuticateUsersBusiness.php

      */
     public static function getToken($user, $data = null)
     {
+        $session_time = LuticateSettingsBusiness::getValue("LU_SESSION_DAYS");
         return JwtHelper::encode(array(
             self::KEY_USER_ID => $user->getId(),
             self::KEY_SALT => $user->getSalt(),
             self::KEY_DATA => $data
-            ));
+            ), $session_time);
     }
 
     /**