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# frozen_string_literal: true
module Zip
# Info-ZIP Additional timestamp field
class ExtraField::UniversalTime < ExtraField::Generic # :nodoc:
HEADER_ID = 'UT'
register_map
ATIME_MASK = 0b010
CTIME_MASK = 0b100
MTIME_MASK = 0b001
def initialize(binstr = nil)
@ctime = nil
@mtime = nil
@atime = nil
@flag = 0
merge(binstr) unless binstr.nil?
end
attr_reader :atime, :ctime, :mtime, :flag
def atime=(time)
@flag = time.nil? ? @flag & ~ATIME_MASK : @flag | ATIME_MASK
@atime = time
end
def ctime=(time)
@flag = time.nil? ? @flag & ~CTIME_MASK : @flag | CTIME_MASK
@ctime = time
end
def mtime=(time)
@flag = time.nil? ? @flag & ~MTIME_MASK : @flag | MTIME_MASK
@mtime = time
end
def merge(binstr)
return if binstr.empty?
size, content = initial_parse(binstr)
return if !size || size <= 0
@flag, *times = content.unpack('Cl<l<l<')
# Parse the timestamps, in order, based on which flags are set.
return if times[0].nil?
@mtime ||= ::Zip::DOSTime.at(times.shift) unless @flag & MTIME_MASK == 0
return if times[0].nil?
@atime ||= ::Zip::DOSTime.at(times.shift) unless @flag & ATIME_MASK == 0
return if times[0].nil?
@ctime ||= ::Zip::DOSTime.at(times.shift) unless @flag & CTIME_MASK == 0
end
def ==(other)
@mtime == other.mtime &&
@atime == other.atime &&
@ctime == other.ctime
end
def pack_for_local
s = [@flag].pack('C')
s << [@mtime.to_i].pack('l<') unless @flag & MTIME_MASK == 0
s << [@atime.to_i].pack('l<') unless @flag & ATIME_MASK == 0
s << [@ctime.to_i].pack('l<') unless @flag & CTIME_MASK == 0
s
end
def pack_for_c_dir
s = [@flag].pack('C')
s << [@mtime.to_i].pack('l<') unless @flag & MTIME_MASK == 0
s
end
end
end
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