License is a gem that can generate and validate license keys. This can powered paid/shareware apps written in Ruby.
To install, use these commands:
gem sources -a http://rubygems.org # you only need to run this if you're not using the latest RubyGems sudo gem install license
To use this in your Rails app, add this to your config/environment.rb:
Rails::Initializer.run do |config| config.gem 'license' end
I won't code or test with Rails 3 until it has been officially released.
For a new license, call the License.new method with the name, email, and product name as the arguments
@license = License.new("Evan Walsh","firstname.lastname@example.org","License Gem Test")
Then, you can generate a key using the generate method
@license.generate # returns 3F7B-D428-ED3A-3636
To check if a key is valid, use the validate method with they key as the argument
@license.validate("3F7B-D428-ED3A-3636") # returns true
Please note that this is not a bulletproof copy-protection solution. It's based on more of an honor system.
Copyright © 2009-2010 Evan Walsh. See LICENSE for details.