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Quick, simple, easy captcha for Sinatra apps

Installation

gem install sinatra-captcha


require 'rubygems'
require 'sinatra'
require 'sinatra/captcha'

get '/' do
  erb :captcha
end

post '/' do
  halt(401, "invalid captcha") unless captcha_pass?
  "passed!"
end

__END__

@@ captcha


Catcha Example


  
<%= captcha_image_tag %>

  
<%= captcha_answer_tag %>

Thank you to ERR THE BLOG for inspiration: http://errtheblog.com/posts/43-captchator-on-rails