A simple captcha implementation for rails 3 based on rmagick
add to Gemfile
gem 'easy_captcha'
after bundle execute
rails g easy_captcha:install
You can configure easy_captcha in “config/initializers/easy_captcha.rb”, if you want to customize the default configuration
EasyCaptcha.setup do |config| # Cache # config.cache = true # Cache temp dir from Rails.root # config.cache_temp_dir = Rails.root + 'tmp' + 'captchas' # Cache size # config.cache_size = 500 # Cache expire # config.cache_expire = 1.days # Chars # config.chars = %w(2 3 4 5 6 7 9 A C D E F G H J K L M N P Q R S T U X Y Z) # Length # config.length = 6 # Image # config.image_height = 40 # config.image_width = 140 # configure generator # config.generator :default do |generator| # Font # generator.font_size = 24 # generator.font_fill_color = '#333333' # generator.font_stroke_color = '#000000' # generator.font_stroke = 0 # generator.font_family = File.expand_path('../../resources/afont.ttf', __FILE__) # generator.image_background_color = "#FFFFFF" # Wave # generator.wave = true # generator.wave_length = (60..100) # generator.wave_amplitude = (3..5) # Sketch # generator.sketch = true # generator.sketch_radius = 3 # generator.sketch_sigma = 1 # Implode # generator.implode = 0.1 # Blur # generator.blur = true # generator.blur_radius = 1 # generator.blur_sigma = 2 # end end
-
RMagick
-
Rails 3 (github.com/rails/rails)
<% form_tag '/' do %>
<% if request.post? %>
<p><%= valid_captcha?(params[:captcha]) ? 'valid' : 'invalid' %> captcha</p>
<% end %>
<p><%= captcha_tag %></p>
<p><%= text_field_tag :captcha %></p>
<p><%= submit_tag 'Validate' %></p>
<% end %>
You find an example app under: github.com/phatworx/easy_captcha_example
* 0.1 init * 0.2 cache support for high frequented sites * 0.3 use generators, optimizations, update licence to same of all my plugins * 0.4 generator support
-
Team Phatworx (github.com/phatworx)
-
Marco Scholl (github.com/traxanos)
-
Check out the latest master to make sure the feature hasn’t been implemented or the bug hasn’t been fixed yet
-
Check out the issue tracker to make sure someone already hasn’t requested it and/or contributed it
-
Fork the project
-
Start a feature/bugfix branch
58D5
-
Commit and push until you are happy with your contribution
-
Make sure to add tests for it. This is important so I don’t break it in a future version unintentionally.
-
Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.
Copyright © 2010 Marco Scholl. See LICENSE.txt for further details.