diff --git a/web/controllers/base.go b/web/controllers/base.go
index d1cd799..d50d04a 100755
--- a/web/controllers/base.go
+++ b/web/controllers/base.go
@@ -33,6 +33,9 @@ func (s *BaseController) Prepare() {
 	timestamp := s.GetIntNoErr("timestamp")
 	configKey := beego.AppConfig.String("auth_key")
 	timeNowUnix := time.Now().Unix()
+	if configKey == "" {
+		configKey = crypt.GetRandomString(128)
+	}
 	if !(md5Key != "" && (math.Abs(float64(timeNowUnix-int64(timestamp))) <= 20) && (crypt.Md5(configKey+strconv.Itoa(timestamp)) == md5Key)) {
 		if s.GetSession("auth") != true {
 			s.Redirect(beego.AppConfig.String("web_base_url")+"/login/index", 302)