Serves files stored with the disk service in the same way that the cloud services do. This means using expiring, signed URLs that are meant for immediate access, not permanent linking. Always go through the BlobsController, or your own authenticated controller, rather than directly to the service url.

Methods
S
U
Included Modules
Instance Public methods
show()

Source: show | on GitHub 

# File activestorage/app/controllers/active_storage/disk_controller.rb, line 12
def show
  if key = decode_verified_key
    response.headers["Content-Type"] = params[:content_type] || DEFAULT_SEND_FILE_TYPE
    response.headers["Content-Disposition"] = params[:disposition] || DEFAULT_SEND_FILE_DISPOSITION

    disk_service.download key do |chunk|
      response.stream.write chunk
    end
  else
    head :not_found
  end
ensure
  response.stream.close
end
update()

Source: show | on GitHub 

# File activestorage/app/controllers/active_storage/disk_controller.rb, line 27
def update
  if token = decode_verified_token
    if acceptable_content?(token)
      disk_service.upload token[:key], request.body, checksum: token[:checksum]
      head :no_content
    else
      head :unprocessable_entity
    end
  else
    head :not_found
  end
rescue ActiveStorage::IntegrityError
  head :unprocessable_entity
ensure
  response.stream.close
end