Class: Riiif::ImagesController

Inherits:
ApplicationController
  • Object
show all
Defined in:
app/controllers/riiif/images_controller.rb

Instance Method Summary collapse

Instance Method Details

#info ⇒ Object 



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# File 'app/controllers/riiif/images_controller.rb', line 33

def info
  image = model.new(image_id)
  if authorization_service.can?(:info, image)
    image_info = image.info
    return render json: { error: 'no info' }, status: :not_found unless image_info.valid?
    headers['Access-Control-Allow-Origin'] = '*'
    # Set a Cache-Control header
    expires_in cache_expires, public: public_cache?
    render json: image_info.to_h.merge(server_info), content_type: 'application/ld+json'
  else
    render json: { error: 'unauthorized' }, status: :unauthorized
  end
end

#info_options ⇒ Object

See fetch.spec.whatwg.org/#http-access-control-allow-headers



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# File 'app/controllers/riiif/images_controller.rb', line 48

def info_options
  response.headers['Access-Control-Allow-Headers'] = 'Authorization'
  self.response_body = ''
end

#redirect ⇒ Object

this is a workaround for github.com/rails/rails/issues/25087



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# File 'app/controllers/riiif/images_controller.rb', line 54

def redirect
  # This was attempted with just info_path, but it gave a NoMethodError
  redirect_to riiif.info_path(params[:id])
end

#show ⇒ Object 



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# File 'app/controllers/riiif/images_controller.rb', line 9

def show
  begin
    image = model.new(image_id)
    status = if authorization_service.can?(:show, image)
               :ok
             else
               :unauthorized
             end
  rescue ImageNotFoundError
    status = :not_found
  end

  image = error_image(status) unless status == :ok

  data = image.render(image_request_params)
  headers['Access-Control-Allow-Origin'] = '*'
  # Set a Cache-Control header
  expires_in cache_expires, public: public_cache? if status == :ok
  send_data data,
            status: status,
            type: Mime::Type.lookup_by_extension(params[:format]),
            disposition: 'inline'
end