Spring Security Between Two Apps

Question

I am using the Spring Source 2.0 security plugin and I've done the tutorial described on this page using the Requestmap method of security.

Acegi Plugin Tutorial

I now want to create a second bookstore as follows and implement the same tutorial.

grails create-app bookstore2

Both apps will share the same database so all users, roles, etc will be common between the two apps. Finally, I want a given user to be automatically authenticated in the second bookstore if he authenticates in the first. What is the best way to implement this?

Answer 1

You might want to have a look at CAS. It's a federated login server that allows to use Single Sign On accross multiple web application - independent of it's plattform. It's Java, Spring based, but requires that you familiarize yourself with it's architecture. Spring Security has built-in support for CAS.

Answer 2

You can leverage the "remember me" functionality that Acegi provides. Since it is cookie based, once you authenticate against the first application, it will drop a cookie, and then when you attempt to log in to the second application, as long as the security model is identical, you will be authenticated immediately via the cookie.

See: Acegi Documentation for further details.