class ActiveStorage::DiskController

def update
  if token = decode_verified_token
    if acceptable_content?(token)
      named_disk_service(token[:service_name]).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
end