Agile Web Development with Rails, Edition 4

14.3 Iteration I3: Limiting Access

require authorization before every access

edit app/controllers/application_controller.rb

class ApplicationController < ActionController::Base

  before_filter :authorize

    # ...

  protected

    def authorize

      unless User.find_by_id(session[:user_id])

        redirect_to login_url, notice: "Please log in"

end

end

end

whitelist the sessions and store controllers

edit app/controllers/sessions_controller.rb

class SessionsController < ApplicationController

  skip_before_filter :authorize

edit app/controllers/store_controller.rb

class StoreController < ApplicationController

  skip_before_filter :authorize

whitelist cart operations

edit app/controllers/carts_controller.rb

class CartsController < ApplicationController

  skip_before_filter :authorize, only: [:create, :update, :destroy]

    def invalid_cart

      logger.error "Attempt to access invalid cart #{params[:id]}"

      redirect_to store_url, notice: 'Invalid cart'

end

end

whitelist line_item operations

edit app/controllers/line_items_controller.rb

class LineItemsController < ApplicationController

  skip_before_filter :authorize, only: :create

whitelist order operations

edit app/controllers/orders_controller.rb

class OrdersController < ApplicationController

  skip_before_filter :authorize, only: [:new, :create]

Cause all tests to do an implicit login

edit test/test_helper.rb

class ActiveSupport::TestCase

  # ...

  # Add more helper methods to be used by all tests here...

  def login_as(user)

    session[:user_id] = users(user).id

end

  def logout

    session.delete :user_id

end

  def setup

    login_as :one if defined? session

end

end

Show that the now pass

rake test

Run options:

# Running tests:

.......

Finished tests in 0.208062s, 33.6438 tests/s, 134.5753 assertions/s.

7 tests, 28 assertions, 0 failures, 0 errors, 0 skips

ruby -v: ruby 2.1.5p273 (2014-11-13 revision 48405) [x86_64-linux]

Run options:

# Running tests:

...............................................

Finished tests in 0.735493s, 63.9027 tests/s, 108.7706 assertions/s.

47 tests, 80 assertions, 0 failures, 0 errors, 0 skips

ruby -v: ruby 2.1.5p273 (2014-11-13 revision 48405) [x86_64-linux]

Run options:

# Running tests:

...

Finished tests in 0.363993s, 8.2419 tests/s, 129.1234 assertions/s.

3 tests, 47 assertions, 0 failures, 0 errors, 0 skips

ruby -v: ruby 2.1.5p273 (2014-11-13 revision 48405) [x86_64-linux]