Class: R509::NameSanitizer

Inherits:
Object
  • Object
show all
Defined in:
lib/r509/subject.rb

Overview

Sanitize an X509::Name. The #to_a method replaces unknown OIDs with "UNDEF", but the #to_s method doesn't. What we want to do is build the array that would have been produced by #to_a if it didn't throw away the OID. This method is not required as of ruby-1.9.3p125 and up.

Instance Method Summary (collapse)

Instance Method Details

- (Array) sanitize(name)

Array of the form [["OID", "VALUE], ["OID", "VALUE"]] with "UNDEF" replaced by the actual OID

Parameters:

  • name (Hash) —

    a customizable set of options

Options Hash (name):

  • (OpenSSL::X509::Name)

Returns:

  • (Array) —

    array of the form [["OID", "VALUE], ["OID", "VALUE"]] with "UNDEF" replaced by the actual OID



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# File 'lib/r509/subject.rb', line 183

def sanitize(name)
  line = name.to_s
  array = name.to_a.dup
  used_oids = []
  undefined_components(array).each do |component|
    begin
      # get the OID from the subject line that has this value
      oids = line.scan(/\/([\d\.]+)=#{component[:value]}/).flatten
      if oids.size == 1
        oid = oids.first
      else
        oid = oids.select{ |match| not used_oids.include?(match) }.first
      end
      # replace the "UNDEF" OID name in the array at the index the UNDEF was found
      array[component[:index]][0] = oid
      # remove the first occurrence of this in the subject line (so we can handle the same oid/value pair multiple times)
      line = line.sub("/#{oid}=#{component[:value]}", "")
      # we record which OIDs we've used in case two different unknown OIDs have the same value
      used_oids << oid
    rescue
      # I don't expect this to happen, but if it does we'll just not replace UNDEF and continue
    end
  end
  array
end