Class: RASN1::Types::Any

Inherits:
Base
  • Object
show all
Defined in:
lib/rasn1/types/any.rb

Overview

ASN.1 ANY: accepts any types

If ‘any#value` is `nil` and Any object is not Base#optional?, `any` will be encoded as a Null object.

Author:

  • Sylvain Daubert

Constant Summary

Constants inherited from Base

Base::CLASSES, Base::INDEFINITE_LENGTH, Base::MAX_TAG

Instance Attribute Summary

Attributes inherited from Base

#asn1_class, #default, #name, #value

Instance Method Summary collapse

Methods inherited from Base

#==, #constructed?, encode_type, #explicit?, #implicit?, #initialize, #initialize_copy, #optional?, parse, #primitive?, #tag, #tagged?, type, #type, #value_size

Constructor Details

This class inherits a constructor from RASN1::Types::Base

Instance Method Details

#inspect(level = 0) ⇒ Object 



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# File 'lib/rasn1/types/any.rb', line 39

def inspect(level=0)
  str = ''
  str << '  ' * level if level > 0
  str << "#{@name} " unless @name.nil?
  if @value.nil?
    str << "(ANY) NULL"
  elsif @value.is_a?(OctetString) or @value.is_a?(BitString)
    str << "(ANY) #{@value.type}: #{value.value.inspect}"
  elsif @value.class < Base
    str << "(ANY) #{@value.type}: #{value.value}"
  else
    str << "ANY: #{value.to_s.inspect}"
  end
end

#parse!(der, ber: false) ⇒ Integer

Parse a DER string. This method updates object: Base#value will be a DER string.

Parameters:

  • der (String) —

    DER string

  • ber (Boolean) (defaults to: false) —

    if true, accept BER encoding

Returns:

  • (Integer) —

    total number of parsed bytes



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# File 'lib/rasn1/types/any.rb', line 27

def parse!(der, ber: false)
  if der.nil? or der.empty?
    return 0 if optional?

    raise ASN1Error, "Expected ANY but get nothing"
  end

  total_length,  = get_data(der, ber)
  @value = der[0, total_length]
  total_length
end

#to_der ⇒ String

Returns DER-formated string.

Returns:

  • (String) —

    DER-formated string



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# File 'lib/rasn1/types/any.rb', line 11

def to_der
  case @value
  when Base, Model
    @value.to_der
  when nil
    optional? ? '' : Null.new.to_der
  else
    @value.to_s
  end
end