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Very simple captcha with Rails 3 & 4 & 5 support
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README.md

Humanizer

Humanizer is a very simple CAPTCHA method. It has a localized YAML file with questions and answers which is used to validate that the user is an actual human. Any model that includes ActiveModel::Validations should work. Our aim is to be database and mapper agnostic, so if it doesn't work for you, open an issue. Humanizer works with Rails 3 and 4.

Installation

Add humanizer to your Gemfile:

gem 'humanizer'

Bundle and run the generator in terminal:

bundle
rails g humanizer

Advanced Installation

  • Install all locales: rails g humanizer --all-locales
  • Show available locales: rails g humanizer --show-locales
  • Install selected locales: rails g humanizer en fi de

Usage

  1. In your model, include Humanizer and add the #require_human_on method, example:
class User < ActiveRecord::Base
  include Humanizer
  require_human_on :create
end
  1. Ask the question in the form, example:
<%= f.label :humanizer_answer, @model.humanizer_question %>
<%= f.text_field :humanizer_answer %>
<%= f.hidden_field :humanizer_question_id %>
  1. If you are using attr_accessible, remember to whitelist :humanizer_answer and :humanizer_question_id.

  2. If you are using strong_parameters, remember to permit :humanizer_answer and :humanizer_question_id.

Configuration

Default translations can be found in config/locales/

You might want to add/change question and answer pairs. This can be easily done by adding/modifying entries in locales file.

Skipping validation

You might want to skip the humanizer validations on your tests or rails console.

You can just have a simple attribute on your model and use it to bypass the validation. Here's an example:

attr_accessor :bypass_humanizer
require_human_on :create, :unless => :bypass_humanizer

Now when bypass_humanizer is true, validation will be skipped.

Reloading questions

In case you want to give your users the option to change the question, there's a #change_humanizer_question method to help you.

To make sure the current question doesn't get asked again, you can pass the current question id to the method. For example:

@user.change_humanizer_question(params[:user][:humanizer_question_id])

Live sites

License

Humanizer is licensed under the MIT License, for more details see the LICENSE file.

Question/Answer Translations

Contributors

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