Contents

module Authoreyes
  # Authoreyes sets up a Railtie to create its authorization engine
  # as a constant during the rails initialization.  Middleware is also
  # configured here.
  class Railtie < Rails::Railtie
    # Error for bad configuration
    class InvalidConfigurationOption < StandardError; end

    # Allow users to configure Authoreyes in an initializer file
    # +auth_rules_file+ is the path of the authorization rules file.
    config.authoreyes = ActiveSupport::OrderedOptions.new

    initializer 'authoreyes.setup', before: 'authoreyes.engine' do |app|
      # Set default Authoreyes options
      default_options = ActiveSupport::OrderedOptions.new
      default_options.auth_rules_file =
        File.path("#{Rails.root}/config/authorization_rules.rb")
      default_options.mode = :whitelist

      # Validates options
      unless [nil, :whitelist, :blacklist].include? config.authoreyes.mode
        raise InvalidConfigurationOption,
          "Unrecognized mode.  Valid options are :whitelist and :blacklist"
      end

      # Merge user options with defaults
      config.authoreyes = default_options.merge(config.authoreyes)
    end

    # Controller integration
    initializer 'authoreyes.in_controller' do |app|
      ActiveSupport.on_load :action_controller do
        before_action :redirect_if_unauthorized
        after_action :set_unauthorized_status_code
      end
    end

    # Set up the Authoreyes ENGINE
    initializer 'authoreyes.engine' do |app|
      config.before_initialize do
        # Set up parser and parse rules
        parser = Authoreyes::Parser::DSLParser.new
        parser.load! app.config.authoreyes.auth_rules_file

        # Create new engine using parsed rules an make constant
        engine = Authoreyes::Authorization::Engine.new reader: parser
        Authoreyes::ENGINE = engine
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
authoreyes-0.2.0	lib/authoreyes/railtie.rb