[GeoNode-devel] Question about GeoNdoe Layer "view" and "download" permissions

[Alessio Fabiani]

Dear all,
while working on this GNIP (GNIP: GeoServer A&A Improvements)

https://github.com/GeoNode/geonode/issues/2374

(which by the way has been updated allowing GeoNode and GeoServer to rely
on OAuth2 Protocol and GeoFence)

we are facing an "issue" trying to set layers' access rules accordingly to
GeoNode permissions.

Long story short, currently GeoNode allows a user to setup two different
kind of Layer access permissions:

1. View permissions (the Layer can be visualized on map and is listed on
the GeoNode layers list)

2. Download permissions (the Layer can be downloaded in several formats,
JPEG, PNG, PDF etc...)

While this is correctly handled on GeoNode side, I guess there are some
discrepancies on how this can be handled on the backend (GeoServer in this
case).

The thing is, if you can download a layer on the backend you necessarily
have also permissions to see it. Unless view and download use different
protocols (which is not the case) to download a layer a user must have
permissions to access it.

That means that even if in GeoNode we remove view permissions to a layer
but we leave download ones, the Layer won't be listed in GeoNode but it
will be always accessible from GeoServer.

I'm going to ask here, is it correct to maintain this logic? Should be
instead put more controls on GeoNode and make view permissions take
precedence on download ones (if you cannot view it you cannot download it
either)?

Thoughts?

Best Regards,
Alessio Fabiani.

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