This is a OmniAuth 1.0 compatible port of the previously available OmniAuth CAS strategy that was bundled with OmniAuth 0.3.

View the documentation

Add this line to your application's Gemfile:

gem 'omniauth-cas'

And then execute:

$ bundle

Or install it yourself as:

$ gem install omniauth-cas

Use like any other OmniAuth strategy:

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :cas, host: 'cas.yourdomain.com'
end

OmniAuth CAS requires at least one of the following two configuration options:

• url - Defines the URL of your CAS server (i.e. http://example.org:8080)
• host - Defines the host of your CAS server. Optional if using url
• login_url - Defines the URL used to prompt users for their login information. Defaults to /login If no host is configured, the host application's domain will be used.

Other configuration options:

• port - The port to use for your configured CAS host. Optional if using url
• ssl - TRUE to connect to your CAS server over SSL. Optional if using url
• service_validate_url - The URL to use to validate a user. Defaults to '/serviceValidate'
• logout_url - The URL to use to logout a user. Defaults to '/logout'
• uid_key - The user data attribute to use as your user's unique identifier. Defaults to 'user' (which usually contains the user's login name)
• ca_path - Optional when ssl is true. Sets path of a CA certification directory. See Net::HTTP for more details
• disable_ssl_verification - Optional when ssl is true. Disables verification.

Given the following OmniAuth 0.3 configuration:

provider :CAS, cas_server: 'https://cas.example.com/cas/'

Your new settings should look similar to this:

provider :cas,
         host:      'cas.example.com',
         login_url: '/cas/login',
  	     service_validate_url: '/cas/serviceValidate'

If you encounter problems wih SSL certificates you may want to set the ca_path parameter or activate disable_ssl_verification (not recommended).

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

Special thanks go out to the following people

• Phillip Aldridge (@iterateNZ) and JB Barth (@jbbarth) for helping out with Issue #3
• Elber Ribeiro (@dynaum) for Ubuntu SSL configuration support
• @rbq for README updates and OmniAuth 0.3 migration guide