textcaptcha¶ ↑

textcaptcha utilizies the textcaptcha.com API to help prevent SPAM. The idea behind the library is to be framework agnostic.

If you’ve not yet obtained an API key for textcaptcha.com, do so at textcaptcha.com/register.

Textcaptcha.configure do |config|
  config.api_key = 'yourapikeyhere'
end

captcha = Textcaptcha.obtain
  # => { :question => "What's eight - 7?", :answers => [ "c4ca4238a0b923820dcc509a6f75849b", "f97c5d29941bfb1b2fdab0874906ab82" ] }

Validate the user’s answer compared to the answers retrieved from Textcaptcha.obtain

captcha = Textcaptcha.obtain
  # => { :question => "What's eight - 7?", :answers => [ "c4ca4238a0b923820dcc509a6f75849b", "f97c5d29941bfb1b2fdab0874906ab82" ] }
Textcaptcha.valid? 'sixteen', captcha[:answers]
  # => false

Since textcaptcha remains framework agnostic, there’s a bit more work to implement it, yet minimal.

On the sign up form, retrieve the question and answer(s).

# app/controllers/users_controller.rb
# GET /users/new
def new
  Textcaptcha.configure do |config|
    config.api_key = 'yourapikeyhere'
  end

  captcha                   = Textcaptcha.obtain
  session[:captcha_answers] = captcha[:answers]
  @captcha_question         = captcha[:question]
  @user                     = User.new
end

# POST /users
def create
  user = User.new(params[:user])
  if Textcaptcha.valid?(params[:captcha_answer], session[:captcha_answers]) && user.save
    # ...
  end
end

In your view.

# app/views/users/new.html.erb
<%= label_tag 'captcha_answer', @captcha_question %>
<%= text_field_tag 'captcha_answer' %>

Be a hero in helping with the battle against spam.

• Fork

• Write test(s)

• Implement

• Submit pull request

Or

• Send me money