Captcha

Gemfile

@@ -27,6 +27,7 @@ gem "semantic_menu",  git: "git://github.com/michaek/semantic_menu.git"
 
 gem 'will_paginate'    # Pagination
 gem 'redcarpet', '~> 3.0'   # Markdown
+gem 'simple_captcha', :git => 'git://github.com/ArturG/simple-captcha.git'
 
 # Gems used only for assets and not required
 # in production environments by default.

Gemfile.lock

@@ -1,3 +1,9 @@
+GIT
+  remote: git://github.com/ArturG/simple-captcha.git
+  revision: 707e56a96c7f44af7f4da77099ab1c53d2860044
+  specs:
+    simple_captcha (0.1.6)
+
 GIT
   remote: git://github.com/michaek/semantic_menu.git
   revision: 5298f586467cc9a91e85befcca673b8406c8846f
@@ -44,7 +50,9 @@ GEM
       multi_json (~> 1.0)
     addressable (2.3.5)
     arel (3.0.3)
-    bcrypt-ruby (3.1.2)
+    bcrypt (3.1.7)
+    bcrypt-ruby (3.1.5)
+      bcrypt (>= 3.1.3)
     bson (1.9.2)
     bson_ext (1.9.2)
       bson (~> 1.9.2)
@@ -126,7 +134,7 @@ GEM
     mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
-    metaclass (0.0.3)
+    metaclass (0.0.4)
     metadown (1.0.1)
       redcarpet
     method_source (0.8.2)
@@ -190,7 +198,7 @@ GEM
     rspec-core (2.14.7)
     rspec-expectations (2.14.5)
       diff-lcs (>= 1.1.3, < 2.0)
-    rspec-mocks (2.14.5)
+    rspec-mocks (2.14.6)
     rspec-rails (2.14.1)
       actionpack (>= 3.0)
       activemodel (>= 3.0)
@@ -215,7 +223,7 @@ GEM
       multi_json (~> 1.0)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
-    sqlite3 (1.3.8)
+    sqlite3 (1.3.9)
     term-ansicolor (1.3.0)
       tins (~> 1.0)
     thor (0.18.1)
@@ -269,6 +277,7 @@ DEPENDENCIES
   rspec-rails
   sass-rails
   semantic_menu!
+  simple_captcha!
   simple_form!
   simplecov
   sqlite3

app/assets/stylesheets/questions.css.scss

@@ -112,3 +112,37 @@
   float:right;
   padding-top:4px;
 }
+
+.simple_captcha { 
+  border: 1px solid #ccc; padding: 5px !important;
+}
+
+.simple_captcha, .simple_captcha div { 
+  margin-left: 150px;
+  display: table;
+}
+
+.simple_captcha .simple_captcha_field, .simple_captcha .simple_captcha_image {
+  border: 1px solid #ccc;
+  margin: 0px 0px 2px 0px !important;
+  padding: 0px !important;
+}
+
+.simple_captcha .simple_captcha_image img {
+  margin: 0px !important;
+  padding: 0px !important;
+  width: 110px !important;
+}
+
+.simple_captcha .simple_captcha_label {
+  font-size: 12px;
+}
+
+.simple_captcha .simple_captcha_field input {
+  width: 150px !important;
+  font-size: 16px;
+  border: none;
+  background-color: #efefef;
+}
+
+

app/controllers/answers_controller.rb

@@ -7,10 +7,16 @@ def create
     @answer = Answer.create params[:answer]
     @answer.question = @question
     @answer.user = current_user
-
-    Notification.new_answer(@question).deliver
-
-    create!(:notice => "Answer Posted!"){ question_url(params[:question_id]) }
+
+    captcha = params[:answer][:captcha]
+    captcha_key = params[:answer][:captcha_key]
+
+    if simple_captcha_valid?(captcha, captcha_key) && !captcha_key.nil? && !captcha_key.nil?
+      Notification.new_answer(@question).deliver
+      create!(:notice => "Answer Posted!"){ question_url(params[:question_id]) }
+    else
+      redirect_to @question, notice: "Incorrect captcha, are you robot?"
+    end
   end
 
   def update
@@ -19,7 +25,5 @@ def update
       format.html { redirect_to question_url(resource.question) }
     end
   end
-
-
 end
 

app/controllers/application_controller.rb

@@ -1,4 +1,6 @@
 class ApplicationController < ActionController::Base
+  include SimpleCaptcha::ControllerHelpers
+
   protect_from_forgery
   helper_method :title
 

app/models/answer.rb

@@ -8,5 +8,4 @@ class Answer
 
   belongs_to :question
   belongs_to :user
-
 end

app/views/answers/_form_content.html.haml

@@ -3,7 +3,8 @@
 .inputs
   = f.input :description, :as => :text, :label => "Answer",
   :hint => "You can format your input with <a href=\"http://daringfireball.net/projects/markdown/\">Markdown</a>".html_safe
-
+.inputs
+  = f.show_simple_captcha
 .actions
   = f.button :submit, :value => "Post Answer", :class => "primary btn"
 

app/views/simple_captcha/_simple_captcha.haml

@@ -0,0 +1,5 @@
+.simple_captcha
+  .simple_captcha_image
+    = simple_captcha_options[:image]
+  .simple_captcha_field
+    = simple_captcha_options[:field]

config/application.rb

@@ -7,6 +7,7 @@
   #Bundler.require *Rails.groups(:assets => %w(development test))
   # If you want your assets lazily compiled in production, use this line
   Bundler.require(:default, :assets, Rails.env)
+  SimpleCaptcha.store = 'mongomapper'
 end
 
 module HacketyHackCom

config/locales/simple_captcha.en.yml

@@ -0,0 +1,7 @@
+en:
+  simple_captcha:
+    placeholder: "Enter the value"
+    label: "Enter the code in the box:"
+    message:
+      default: "Secret Code did not match with the Image"
+      user: "The secret Image and code were different"

features/answers.feature

@@ -5,7 +5,8 @@ Feature: CRUD actions for answers
   Scenario: Create an answer
     Given a question exists
     And I answer that question
-    Then I should be notified that my answer was submitted
+    Then I should see captcha
+    And I should be notified that my answer was submitted
     And an email should be sent to the author
     And I should be able to see my answer
     And my answer should show on my profile page
@@ -14,5 +15,6 @@ Feature: CRUD actions for answers
     Given a question exists
     And I answer that question
     When I edit that answer
-    Then I should see the updated answer
+    Then I should see captcha
+    And I should see the updated answer
 

features/step_definitions/answer_steps.rb

@@ -40,3 +40,8 @@
   page.should have_content('Edit: Did you try magic?')
 end
 
+Then(/^I should see captcha$/) do
+  page.should have_css('.simple_captcha')
+  page.should have_css('.simple_captcha_image')
+  page.should have_css('.simple_captcha_field')
+end

spec/controllers/answers_controller_spec.rb

@@ -0,0 +1,28 @@
+require 'spec_helper'
+
+describe AnswersController do
+	let(:newbie){Fabricate(:user)}
+  let(:tricky){Fabricate(:question)}
+
+  describe "#create" do
+
+    before(:each) do
+      sign_in newbie
+      @valid_captcha_answer = { :description => "Foo", :captcha => "Bar", :captcha_key => "FooBar" }
+      @invalid_captcha_answer = { :description => "Foo"}
+    end
+
+    context "post answer" do
+      it "responds with success if captcha is correct" do
+      	sign_in newbie
+        post :create, :question_id => tricky, :answer => @valid_captcha_answer
+        flash[:notice].should == "Answer Posted!"
+      end
+
+      it "responds with failure if captcha is incorrect" do
+        post :create, :question_id => tricky, :answer => @invalid_captcha_answer
+        flash[:notice].should == "Incorrect captcha, are you robot?"
+      end
+    end
+  end
+end

spec/fabricators/answer_fabricator.rb

@@ -1,4 +1,4 @@
 Fabricator(:answer) do
   description "MyString"
-  user ""
+  question_id question
 end

spec/views/questions/index.html.haml_spec.rb

@@ -12,7 +12,7 @@
   end
 
   it "renders an autodiscovery link in for the head content" do
-    render :template => "questions/index.html.haml", :locals => {:collection => [question]}
+    render :template => "questions/index", :handlers => [:haml], :locals => {:collection => [question]}
 
     view.content_for(:head).should include(questions_url(format: :atom))
   end