# frozen_string_literal: true require 'date' module RASN1 module Types # ASN.1 UTCTime # # +{#value} of a +UtcTime+ should be a ruby Time. # # ===Notes # When encoding, resulting string is always a UTC time, appended with +Z+. # Seconds are always generated. # # On parsing, UTC times (ending with +Z+) and local times (ending with # +sHHMM+, where +s+ is +++ or +-+, and +HHMM+ is the time differential # betwen UTC and local time) are both supported. Seconds may be present or # not. # @author Sylvain Daubert class UtcTime < Primitive # UtcTime id value ID = 23 # Get ASN.1 type # @return [String] def self.type 'UTCTime' end private def value_to_der @value.getutc.strftime('%y%m%d%H%M%SZ') end def der_to_value(der, ber: false) format = case der.size when 11 '%Y%m%d%H%MZ' when 13 '%Y%m%d%H%M%SZ' when 15 '%Y%m%d%H%M%z' when 17 '%Y%m%d%H%M%S%z' else prefix = @name.nil? ? type : "tag #{@name}" raise ASN1Error, "#{prefix}: unrecognized format: #{der}" end century = (Time.now.year / 100).to_s @value = DateTime.strptime(century + der, format).to_time end end end end