Any code examples for making a Rails 3 controller a WebDAV server?

I need to implement a dynamic WebDAV server that authenticates users against users in a 开发者_C百科Rails 3 database and which saves files uploaded via WebDAV into the database. Is there any code out there that does this and that can serve as an example?

Have a look at the sources of https://github.com/georgi/rack_dav, it's doing exactly that.