class ActionDispatch::Cookies::CookieJar

def handle_options(options)
  if options[:expires].respond_to?(:from_now)
    options[:expires] = options[:expires].from_now
  end
  options[:path]      ||= "/"
  unless options.key?(:same_site)
    options[:same_site] = request.cookies_same_site_protection
  end
  if options[:domain] == :all || options[:domain] == "all"
    cookie_domain = ""
    dot_splitted_host = request.host.split(".", -1)
    # Case where request.host is not an IP address or it's an invalid domain
    # (ip confirms to the domain structure we expect so we explicitly check for ip)
    if request.host.match?(/^[\d.]+$/) || dot_splitted_host.include?("") || dot_splitted_host.length == 1
      options[:domain] = nil
      return
    end
    # If there is a provided tld length then we use it otherwise default domain.
    if options[:tld_length].present?
      # Case where the tld_length provided is valid
      if dot_splitted_host.length >= options[:tld_length]
        cookie_domain = dot_splitted_host.last(options[:tld_length]).join(".")
      end
    # Case where tld_length is not provided
    else
      # Regular TLDs
      if !(/\.[^.]{2,3}\.[^.]{2}\z/.match?(request.host))
        cookie_domain = dot_splitted_host.last(2).join(".")
      # **.**, ***.** style TLDs like co.uk and com.au
      else
        cookie_domain = dot_splitted_host.last(3).join(".")
      end
    end
    options[:domain] = if cookie_domain.present?
      cookie_domain
    end
  elsif options[:domain].is_a? Array
    # If host matches one of the supplied domains.
    options[:domain] = options[:domain].find do |domain|
      domain = domain.delete_prefix(".")
      request.host == domain || request.host.end_with?(".#{domain}")
    end
  elsif options[:domain].respond_to?(:call)
    options[:domain] = options[:domain].call(request)
  end
end