class DhParams

def dh_params?
  !@dh_params.nil?
end

def generator
  return if @dh_params.nil?
  @dh_params.g.to_i
end

def initialize(filename)
  @dh_params_path = filename
  @dh_params = OpenSSL::PKey::DH.new read_file_content(@dh_params_path)
end

def modulus
  return if @dh_params.nil?
  '00:' + @dh_params.p.to_s(16).downcase.scan(/.{2}/).join(':')
end

def pem
  return if @dh_params.nil?
  @dh_params.to_pem
end

def prime_length
  return if @dh_params.nil?
  @dh_params.p.num_bits
end

def text
  return if @dh_params.nil?
  @dh_params.to_text
end

def to_s
  "dh_params #{@dh_params_path}"
end

def valid?
  return if @dh_params.nil?
  @dh_params.params_ok?
end