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Securing the Login for a Rails Ecommerce Application

In the first part of this four-part series we started to learn about security for an ecommerce application in Ruby-on-Rails. In this second part we're going to test some of what we did in the first part, and implement some important login features. This article is excerpted from chapter eight of the book Practical Rails Projects, written by Eldon Alameda (Apress; ISBN: 1590597818).

Author Info:
By: Apress Publishing
Rating: 5 stars5 stars5 stars5 stars5 stars / 5
June 17, 2010
  1. · Securing the Login for a Rails Ecommerce Application
  2. · Implementing the Fail Log In User Story
  3. · Adding the Flash Message
  4. · Adding Login Links and Styling

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Securing the Login for a Rails Ecommerce Application - Adding the Flash Message
(Page 3 of 4 )

Openapp/controllers/account_controller.rband add the flash message to show for failed logins:

class AccountController < ApplicationController
# If you want "remember me" functionality, add this before_filter to➥
Application Controller
before_filter :login_from_cookie

  # say something nice, you goof! something sweet.
  def index
    redirect_to(:action => 'signup') unless logged_in? || User.count > 0

  def login
    return unless request.post?
    self.current_user = User.authenticate(params[:login], params[:password])
    if current_user
if params[:remember_me] == "1"
        cookies[:auth_token] = { :value => self.current_user.remember_token ,➥
:expires => self.current_user.remember_token_expires_at }
      redirect_back_or_default(:controller => '/account', :action => 'index')
      flash[:notice] = "Logged in successfully"
flash.now[:notice] = "Incorrect login!"

Running the test again shows all green, so try it out in the browser. Figure 8-2 shows the result. As you can see, the plugin is doing its job.

Figure 8-2.  A failed login

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