Class: ActiveStorage::PostgresqlController

Inherits:
BaseController
  • Object
show all
Defined in:
app/controllers/active_storage/postgresql_controller.rb

Overview

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.

Instance Method Summary collapse

Instance Method Details

#show ⇒ Object

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# File 'app/controllers/active_storage/postgresql_controller.rb', line 12

def show
  if key = decode_verified_key
    response.headers["Content-Type"] = key[:content_type] || DEFAULT_SEND_FILE_TYPE
    response.headers["Content-Disposition"] = key[:disposition] || DEFAULT_SEND_FILE_DISPOSITION
    size = ActiveStorage::PostgreSQL::File.open(key[:key], &:size)

    ranges = Rack::Utils.get_byte_ranges(request.get_header('HTTP_RANGE'), size)

    if ranges.nil? || ranges.length > 1
      # # No ranges, or multiple ranges (which we don't support):
      # # TODO: Support multiple byte-ranges
      self.status = :ok
      range = 0..size-1

    elsif ranges.empty?
      head 416, content_range: "bytes */#{size}"
      return
    else
      range = ranges[0]
      self.status = :partial_content
      response.headers["Content-Range"] = "bytes #{range.begin}-#{range.end}/#{size}"
    end
    self.response_body = postgresql_service.download_chunk(key[:key], range)
  else
    head :not_found
  end
rescue ActiveRecord::RecordNotFound
  head :not_found
end

#update ⇒ Object

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# File 'app/controllers/active_storage/postgresql_controller.rb', line 42

def update
  if token = decode_verified_token
    if acceptable_content?(token)
      postgresql_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
end