Add on library for ruby-openid which adds support for the discovery protocol used by Google Apps.
To install: gem install ruby-openid-apps-discovery
To use: require 'gapps_openid'
Use the ruby-openid library as normal (also works with rack-openid or any other derivative of ruby-openid.) To start discovery on a Google Apps domain, simply use the domain name as the identifier.
Mirrored from http://code.google.com/p/ruby-openid-apps-discovery