[xwiki-devs] Programmatically Login

Hi, I'm new on list, and new on xwiki too, we have successfully deployed the XWiki Enterprise 2.3 in our company, but there is some pre requisites that we must accomplish to integrate the system to our SSO aplication. The SSO is a very simple aplication that stores all users and groups on a independent database, the SSO system have a interface that shows, like a catalog, all the internal systems that a specific person (logged in person) has access. The archictecture is very simple, and almost time insecure, passing by GET parameter the credentials to other systems in php, java, python, etc..., but this is another point that we here have to discuss and adjust adjust. To provide this SSO to xwiki i was wondering create a Filter that verify those GET parameters and programmatically authenticates the user to XWiki and use the MyFormAuthenticator.authenticate() to perform the login. But here come the question, the authenticate method needs a XWikiContext object, is it possible to have this context in a Servlet Filter? And you guys have some suggestions about my strategy? Any alternative to what i want achieve? -- L. Marcelo