func (a *AuthSession) add(s sign.Signer, w http.ResponseWriter) error {
data, err := s.Sign(a)
if err != nil {
return err
}
http.SetCookie(w, &http.Cookie{
Name: "auth",
Value: data,
Path: "/",
Expires: time.Now().AddDate(1, 0, 0),
})
return nil
}
