Attach a feed URL to a node

Feature request: Attach a feed URL to a node with the option to import data on node creation or on request (VBO?).

May be it's possible but I have not found any solution searching on web and in documentation

Use case

I create an "Imported Node" content type with a "field_feed" field

I create a node by filling in the "field_feed" field with a valid http address.

On saving (or at my request) the feed is read and imported.

Any suggestion?
Tnx