Desktop Actions and mime types for a DRM file format

[Lin, Mengdong]

> > I want to handle a DRM file format, which adds an encryption wrapper outside
> of the protected content. Please see the diagram.
> 
> Please resist this temptation and do not bring more harm, shame and nonsense
> upon humanity.

So xdg utils or shared MIME database don't want to touch such a DRM scheme, right? 
I cannot say I like DRM but that DRM format does exist. So I just want to find a possible clean solution.

Regards
Amanda