Custom Libraries Data Provider

We are looking into integrating an extermal document asset management solution with Sitefinity (www.damsuccess.com/.../202134055-REST-API). This isn't just a CDN or blob storage system, but a full solution for managing libraries, just as Sitefinity does.

It looks like we would need to create a custom class that inherits from Telerik.Sitefinity.Modules.Libraries.LibrariesDataProvider and talks to the REST apis from above.

Somewhat straightforward. However, the API we'd be talking to requires oauth authentication --the end user would have to log into their system before we could talk to the API's.

Any ideas on how I'd implement this in the custom libraries data provider?

Has anyone done anything similar?

Thanks!