Orm-sso is a project mainly written in ..., it's free.
SSO module driver for Kohana ORM
This driver will enable support for Kohana ORM in the SSO module.
If the user wasn't found during the login process the current sign up method saves the user as a new user. It also merges the OAuth account with a standard account if they share the same e-mail address.
You can define your own sign up method:
orm_driver_directory/classes/model/user.php
to application_directory/classes/model/user.php
.sso_signup()
method to your needs.