# File lib/heroku/client.rb, line 116
  def list_domains(app_name)
    doc = xml(get("/apps/#{app_name}/domains").to_s)
    doc.elements.to_a("//domain-names/*").map do |d|
      attrs = { :domain => d.elements['domain'].text }
      if cert = d.elements['cert']
        attrs[:cert] = {
          :expires_at => Time.parse(cert.elements['expires-at'].text),
          :subject    => cert.elements['subject'].text,
          :issuer     => cert.elements['issuer'].text,
        }
      end
      attrs
    end
  end