Contents

require 'sufia/single_use_error'

module Sufia
  module SingleUseLinksViewerControllerBehavior
    extend ActiveSupport::Concern
    include Sufia::DownloadsControllerBehavior
    included do
      skip_before_filter :load_file, except: :download
      rescue_from Sufia::SingleUseError, with: :render_single_use_error
      rescue_from CanCan::AccessDenied, with: :render_single_use_error
      rescue_from ActiveRecord::RecordNotFound, with: :render_single_use_error
      class_attribute :presenter_class
      self.presenter_class = Sufia::GenericFilePresenter
    end

    def download
      raise not_found_exception unless single_use_link.path == sufia.download_path(id: @asset)
      send_content
    end

    def show
      raise not_found_exception unless single_use_link.path == sufia.polymorphic_path(@asset)

      #show the file
      @presenter = presenter

      # create a dowload link that is single use for the user since we do not just want to show metadata we want to access it too
      @su = single_use_link.create_for_path sufia.download_path(id: @asset)
      @download_link = sufia.download_single_use_link_path(@su.downloadKey)
    end

    protected

    def presenter
      presenter_class.new(@asset)
    end

    def authorize_download!
      authorize! :read, asset
    end

    def single_use_link
      @single_use_link ||= SingleUseLink.find_by_downloadKey!(params[:id])
    end

    def not_found_exception
      Sufia::SingleUseError.new('Single-Use Link Not Found')
    end

    def asset
      @asset ||= ActiveFedora::Base.find(single_use_link.itemId)
    end

    def current_ability
      @current_ability ||= SingleUseLinksViewerController::Ability.new current_user, single_use_link
    end
  end
end 

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
sufia-6.2.0	app/controllers/concerns/sufia/single_use_links_viewer_controller_behavior.rb
sufia-6.1.0	app/controllers/concerns/sufia/single_use_links_viewer_controller_behavior.rb
sufia-6.0.0	app/controllers/concerns/sufia/single_use_links_viewer_controller_behavior.rb
sufia-6.0.0.rc4	app/controllers/concerns/sufia/single_use_links_viewer_controller_behavior.rb