implement recaptcha. its ugly as hell but it works and this way we can keep emailing

Author: dsjoerg

Gemfile

@@ -147,3 +147,4 @@ gem 'rack-attack'
 gem 'unf_ext', '0.0.6'
 
 gem 'foreman'
+gem "recaptcha", :git => 'git://github.com/brendon/recaptcha.git', :ref => 'remove-ruby-restriction', require: "recaptcha/rails"

Gemfile.lock

@@ -5,6 +5,14 @@ GIT
     compass-rails (2.0.alpha.0)
       compass (>= 0.12.2, < 0.14)
 
+GIT
+  remote: git://github.com/brendon/recaptcha.git
+  revision: 21473e536b93c0237ec02edcc78cf4f7a547a221
+  ref: remove-ruby-restriction
+  specs:
+    recaptcha (1.3.0)
+      json
+
 GIT
   remote: git://github.com/chriseppstein/compass.git
   revision: 0a74e91931e53fb798323cd8684198c38a2b76b8
@@ -331,6 +339,7 @@ DEPENDENCIES
   rack-attack
   rails (= 3.2.22)
   rails-dev-boost!
+  recaptcha!
   resque
   rspec
   rspec-rails
@@ -340,5 +349,8 @@ DEPENDENCIES
   unf_ext (= 0.0.6)
   unicorn
 
+RUBY VERSION
+   ruby 1.9.3p484
+
 BUNDLED WITH
-   1.11.2
+   1.15.3

app/controllers/users_controller.rb

@@ -1,5 +1,6 @@
 class UsersController < Devise::RegistrationsController
   before_filter :authenticate_user!, :except => [:auth]
+  prepend_before_filter :check_captcha, only: [:create] # Change this to be any actions you want to protect.
   respond_to :html, :json, :xml
 
   # Overriding devise helpers
@@ -38,4 +39,13 @@ def update
     current_user.update_attributes(params[:user])
     render :text => "OK"
   end
+
+  private
+  def check_captcha
+    unless verify_recaptcha
+      self.resource = resource_class.new sign_up_params
+      respond_with_navigational(resource) { render :new }
+    else
+    end 
+  end
 end

app/views/devise/registrations/new.html.erb

@@ -1 +1,17 @@
-<%= render 'devise/aio' %>
+<h2>Sign up</h2>
+
+<%= form_for(resource, :as => resource_name, :url => registration_path(resource_name)) do |f| %>
+  <%= devise_error_messages! %>
+  <%= flash[:recaptcha_error] %>
+
+  <div><%= f.label :email %><br />
+  <%= f.email_field :email, :autofocus => true %></div>
+
+  <div><%= f.label :password %><br />
+  <%= f.password_field :password %></div>
+
+  <div>
+    <%= recaptcha_tags(stoken: false, ajax: true) %>
+  </div>
+  <div><%= f.submit "Sign up" %></div>
+<% end %>

config/initializers/recaptcha.rb

@@ -0,0 +1,4 @@
+Recaptcha.configure do |config|
+  config.public_key  = '6Lcg3SkUAAAAAO4yYqDriPdh-er7islVavz1m-X2'
+  config.private_key = '6Lcg3SkUAAAAAEKwJT0Xy-U8XRC8_Qhc1w6FlZRv'
+end