noesya/osuny

module ActiveStorage::CheckAbilities
  extend ActiveSupport::Concern

  private

  def check_abilities
    render(file: Rails.root.join('public/403.html'), formats: [:html], status: 403, layout: false) and return if current_university.present? && @blob.university_id != current_university.id
  end

  def current_extranet
    @current_extranet ||= Communication::Extranet.with_host(request.host)
  end

  def current_university
    @current_university ||= begin
      current_extranet.present? ? current_extranet.university
                                : University.with_host(request.host)
    end
  end
end