global

def password_expired? 

def password_expired?
  if password_changed_at = session[password_changed_at_session_key]
    return password_changed_at + require_password_change_after < Time.now.to_i
  end
  account_from_session
  if password_changed_at = get_password_changed_at
    set_session_value(password_changed_at_session_key, password_changed_at.to_i)
    password_changed_at + require_password_change_after < Time.now
  else
    set_session_value(password_changed_at_session_key, password_expiration_default ? 0 : 2147483647)
    password_expiration_default
  end
end