Module: Ber
- Defined in:
- lib/ber.rb,
lib/ber/array.rb,
lib/ber/bignum.rb,
lib/ber/fixnum.rb,
lib/ber/string.rb,
lib/ber/boolean.rb,
lib/ber/version.rb
Defined Under Namespace
Modules: Array, Bignum, Boolean, Fixnum, String
Constant Summary collapse
- Zero =
[0].pack('C')
- Identifiers =
{ end_of_content: 0x0, boolean: 0x1, fixnum: 0x2, bit_string: 0x3, ocet_string: 0x4, null: 0x5, array: 0x30, # Quick shorthands string: 4 }
- VERSION =
"0.0.1"
Class Method Summary collapse
Class Method Details
.decode(input) ⇒ Object
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# File 'lib/ber.rb', line 24 def self.decode(input) idents = Identifiers.select { |key, value| value == input.getbyte(0) } identifier = idents.first.first length = input.getbyte(1) if length >= 127 length = input.length - (length - 126) end value = input[(input.length - length)..input.length] if identifier == :fixnum if length == 1 value = value.unpack('C').first else if value.length < 4 padded_value = "#{Zero * (4 - value.length)}#{value}" value = padded_value.unpack('N').first else hex_total = "" value.split("").each do |char| hex = char.ord.to_s(16) hex_total << "0" if hex.length == 1 hex_total << hex end value = hex_total.to_i(16) end end elsif identifier == :boolean value = (value == Zero ? false : true) elsif identifier == :array values = [] found = value.scan(/(..[A-z]*)/) # This WILL NOT work for Bignums or strings of over 127 in length TODO: Fix this found.each do |v| values << Ber.decode(v.first)[:value] end value = values end {identifier: identifier, length: length, value: value} end |