Zero Captcha
The simplest way to add a zero friction captcha in your Rails forms.
A zero captcha works off the idea that most simple bots do not run a full JavaScript interpreter when crawling web forms, so they are unable to fill a required field whereas the required field is actually hidden and autopopulated by JavaScript in a real browser with a real human. This means having a layer of spam protection while maintaining zero friction.
This should not be used solely by itself, but can be useful as an extra layer of defense alongside honeypot captchas and/or more traditional captchas.
Requirements
Requires jQuery on running on the client side.
Installation
In your Gemfile, simply add
gem 'zero-captcha'
Usage
form_for
Simply specify that the form has a honeypot in the HTML options hash:
<% form_for Comment.new, :html => { :zero_captcha => true } do |form| -%>
...
<% end -%>
form_tag with block
Simply specify that the form has a honeypot in the options hash:
<% form_tag comments_path, :zero_captcha => true do -%>
...
<% end -%>
form_tag without block
Simply specify that the form has a honeypot in the options hash:
<%= form_tag comments_path, :zero_captcha => true -%>
...
</form>
Copyright
See LICENSE for details.