Dropin replacement for rack-recaptcha that uses picatcha verification.

How to Use

Configuration

First, install the library with: [sudo] gem install rack-picatcha

You have to require 'rack-picatcha' in your gemfile.

## Gemfile
gem 'rack-picatcha', :require => 'rack/picatcha'

Available options for `Rack::Picatcha` middleware are:

* :public_key -- your Picatcha API public key *(required)*
* :private_key -- your Picatcha API private key *(required)*
* :proxy_host -- the HTTP Proxy hostname *(optional)*
* :proxy_port -- the HTTP Proxy port *(optional)*
* :proxy_user -- the HTTP Proxy user *(optional, omit unless the proxy requires it)*
* :proxy_password -- the HTTP Proxy password *(optional, omit unless the proxy requires it)*

Now configure your app to use the middleware. This might be different across each web framework. Only tested with Sinatra

Sinatra

## app.rb
use Rack::Picatcha, :public_key => 'KEY', :private_key => 'SECRET'
helpers Rack::Picatcha::Helpers

Padrino

## app/app.rb
use Rack::Picatcha, :public_key => 'KEY', :private_key => 'SECRET'
helpers Rack::Picatcha::Helpers

Rails

## application.rb:
module YourRailsAppName
  class Application < Rails::Application
    ...
    config.gem 'rack-picatcha', :lib => 'rack/picatcha'
    config.middleware.use Rack::Picatcha, :public_key => 'KEY', :private_key => 'SECRET'
  end
end

## application_helper.rb or whatever helper you want it in.
module ApplicationHelper
  include Rack::Picatcha::Helpers
end

## application_controller.rb or whatever controller you want it in.
class ApplicationController < ActionController::Base
  ...
  include Rack::Picatcha::Helpers
  ...
end

Helpers

The Rack::Picatcha::Helpers module (for Sinatra, Rails, Padrino) adds these methods to your app:

Return a picatcha form

  picatcha_tag  :challenge, :public_key => PUBLIC_KEY

To test whether or not the verification passed, you can use:

  picatcha_valid?

or

  picatcha_valid? :picatcha => params[:picatcha], :private_key => "#{recaptcha_privatekey}"

The picatcha_valid? helper can also be overloaded during tests. You can set its response to either true or false by doing the following:

 # Have picatcha_valid? return true
 Rack::Picatcha.test_mode!

 # Or have it return false
 Rack::Picatcha.test_mode! :return => false

Contributors

James Ayvaz - ayvazj

• drop in replacement for rack-recaptcha

Note on Patches/Pull Requests

• Fork the project.
• Make your feature addition or bug fix.
• Add tests for it. This is important so I don't break it in a future version unintentionally.
• Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
• Send me a pull request. Bonus points for topic branches.

Copyright

Copyright (c) 2012 James Ayvaz. See LICENSE for details.