[Qgis-user] Save projects to DB without creator's permissions

[Alessandro Pasotti]

On Mon, Jun 1, 2020 at 3:35 PM Cliff Patterson <cpatterson at psdrcs.com>
wrote:

> That's exactly the problem with the auth system. If you connect to a DB
> using the auth system and store a map in the DB (or anywhere for that
> matter), the map contains your credentials/permissions for EVERY layer that
> you added. So if you create a map while logged in as DB owner (i.e. full
> perms for every layer), any user who opens it will have full permissions on
> every layer in the map. The only workaround for this is to remember to use
> basic auth and uncheck "store" beside password whenever creating a shared
> project.
>
> Any other less vulnerable workarounds would be very helpful, though I
> doubt any exist.
>

Cliff, I probably misunderstood your issue.

What I was trying to say is that you can create a project with (say) one PG
layer that required your credentials (user "cliff")  to be created but you
want other users (user "alice") to be able to access the layer with her own
credentials.

You can create an authentication configuration and set its authid to some
easy to share value (you have 7 chars if I remember correctly), then you
will store your credentials in your authentication DB for that authid and
"alice" will store her credentials in her own authentication DB using the
same authid.

Note that "alice" credentials are different from "cliffs" credentials, the
authentication DB is also different (unless they are using the same machine
and the same OS account and the same user profile), the only thing that is
equal is the authentication configuration id.

The thing is that you don't share the authentication DB, you share the
authid 7 digits code only an the other users will use their own
credentials.

Kind regards,



> Cliff
>
> On Fri, May 29, 2020 at 3:03 PM Alessandro Pasotti <apasotti at gmail.com>
> wrote:
>
>> Maybe all that you need is in the QHIS auth system is
>> https://docs.qgis.org/3.10/en/docs/user_manual/auth_system/auth_workflows.html#changing-authentication-config-id
>>
>> The master password can be stored in the operating system wallet so that
>> the user will not need to type his password.
>>
>> Regards
>>
>>
>> On Fri, May 29, 2020, 19:39 Cliff Patterson <cpatterson at psdrcs.com>
>> wrote:
>>
>>> PS: I realize I can create maps with basic auth and not store the PW,
>>> which prompts the user to enter their creds. But is there a better way now
>>> to achieve the same result?
>>>
>>> Cliff
>>>
>>> On Fri, May 29, 2020 at 1:29 PM Cliff Patterson <cpatterson at psdrcs.com>
>>> wrote:
>>>
>>>> What is the best approach to save QGIS projects to PostgreSQL
>>>> without saving the project-creator's credentials/permissions? If the DB
>>>> admin creates a project and saves it to the DB, anyone opening that project
>>>> will attain the admin's permissions on layers in that map.
>>>>
>>>> To recreate:
>>>>
>>>> 1) Create a map containing PostGIS layers and save project to DB. All
>>>> layers should be editable by the admin. Admin is logged into DB with auth
>>>> config, not basic auth.
>>>> 2) Create a new read-only user and new profile in QGIS and log in to DB.
>>>> 3) Open the project and try to edit layers. Read-only user will be able
>>>> to see and edit all layers just like the DB Admin.
>>>>
>>>> Is there a way to save projects to DB WITHOUT saving any user
>>>> creds/permissions?
>>>>
>>>> Cliff
>>>>
>>>> --
>>>>
>>>> Cliff Patterson Ph.D.
>>>>
>>>> *PSD* | Senior GIS Consultant
>>>> P: 519-690-2565 ext. 2616
>>>> www.psdrcs.com
>>>> London | 148 Fullarton St. 9th Floor
>>>>
>>>>
>>>
>>> --
>>>
>>> Cliff Patterson Ph.D.
>>>
>>> *PSD* | Senior GIS Consultant
>>> P: 519-690-2565 ext. 2616
>>> www.psdrcs.com
>>> London | 148 Fullarton St. 9th Floor
>>>
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>>
>>
>
> --
>
> Cliff Patterson Ph.D.
>
> *PSD* | Senior GIS Consultant
> P: 519-690-2565 ext. 2616
> www.psdrcs.com
> London | 148 Fullarton St. 9th Floor
>
>

-- 
Alessandro Pasotti
QCooperative:  www.qcooperative.net
ItOpen:   www.itopen.it
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