ommit check old passwd if password is empty

http/controller/admin/user.go

@@ -247,11 +247,15 @@ func (ct *User) ChangeCurPwd(c *gin.Context) {
 		return
 	}
 	u := service.AllService.UserService.CurUser(c)
+	// If the password is not empty, the old password is verified
+	// otherwise, the old password is not verified
+	if !service.AllService.UserService.IsPasswordEmptyByUser(u) {
 		oldPwd := service.AllService.UserService.EncryptPassword(f.OldPassword)
 		if u.Password != oldPwd {
 			response.Fail(c, 101, response.TranslateMsg(c, "OldPasswordError"))
 			return
 		}
+	}
 	err := service.AllService.UserService.UpdatePassword(u, f.NewPassword)
 	if err != nil {
 		response.Fail(c, 101, response.TranslateMsg(c, "OperationFailed")+err.Error())