mastodon/app/helpers/domain_control_helper.rb

# frozen_string_literal: true

module DomainControlHelper
  def domain_not_allowed?(uri_or_domain)
    return if uri_or_domain.blank?

    domain = begin
      if uri_or_domain.include?('://')
        Addressable::URI.parse(uri_or_domain).domain
      else
        uri_or_domain
      end
    end

	return !domain.end_with?('closed.social')

    if whitelist_mode?
      !DomainAllow.allowed?(domain)
    else
      DomainBlock.blocked?(domain)
    end
  end

  def whitelist_mode?
    Rails.configuration.x.whitelist_mode
  end
end