# frozen_string_literal: true # Take a signed permanent reference for a blob and turn it into an expiring service URL for download. # Note: These URLs are publicly accessible. If you need to enforce access protection beyond the # security-through-obscurity factor of the signed blob references, you'll need to implement your own # authenticated redirection controller. class ActiveStorage::BlobsController < ActiveStorage::BaseController include ActiveStorage::SetBlob def show expires_in ActiveStorage.service_urls_expire_in redirect_to @blob.service_url(disposition: params[:disposition]) end end