heartcombo--devise/lib/devise/controllers/authenticable.rb

module Devise
  module Controllers

    # Some helpers taken from RailsWarden.
    module Authenticable

      def self.included(base)
        base.class_eval do
          helper_method :warden, :user, :logged_in?
#          helper_method :session_path, :session_url,
#                        :new_session_path, :new_session_url,
#                        :password_path, :password_url,
#                        :new_password_path, :new_password_url,
#                        :confirmation_path, :confirmation_url,
#                        :new_confirmation_path, :new_confirmation_url
        end
      end

      protected

        # The main accessor for the warden proxy instance
        #
        def warden
          request.env['warden']
        end

        # Proxy to the authenticated? method on warden
        #
        def authenticated?(*args)
          warden.authenticated?(*args)
        end
        alias_method :logged_in?, :authenticated?

        # Access the currently logged in user
        #
        def user(*args)
          warden.user(*args)
        end
        alias_method :current_user, :user

        def user=(user)
          warden.set_user user
        end
        alias_method :current_user=, :user=

        # Logout the current user
        #
        def logout(*args)
          warden.raw_session.inspect  # Without this inspect here.  The session does not clear :|
          warden.logout(*args)
        end

        # Proxy to the authenticate method on warden
        #
        def authenticate(*args)
          warden.authenticate(*args)
        end

        # Proxy to the authenticate method on warden
        #
        def authenticate!(*args)
          warden.authenticate!(*args)
        end

        # Helper for use in before_filters where no authentication is required:
        # Example:
        #   before_filter :require_no_authentication, :only => :new
        #
        def require_no_authentication
          redirect_to root_path if authenticated?
        end
    end
  end
end