Le mardi 25 janvier 2022 à 16:30 +0000, S . via desktop-devel-list a écrit :
> Hi All,
>
> (Please feel free to advise of appropriate mailing list if you think this
> doesn't fit here)
>
> I am looking into supporting CRD for GNOME/wayland. CRD would be leveraging
> remote desktop APIs (along with screencast) as exposed by xdg-desktop-
> portal{,-gnome}. While experimenting with remote desktop APIs, I see that for
> enhanced security, an interactive dialog (relevant code:
> https://gitlab.gnome.org/GNOME/xdg-desktop-portal-gnome/-/blob/main/src/screencast.c#L345-349
> ) is always presented to the user to select sources/devices they want to allow
> to be remote controlled. Though this workflow would make perfect sense when a
> user is directly connected to the machine and is allowing someone remote to
> take control (e.g. to get help from IT) but it is less than ideal for a user
> who is trying to access their own machine remotely (e.g. accessing their work
> computer from home).
If you visite the screenshare configuration panel, you have two choices,
interactive or password driven. The second is non-interactive. The visual
addition telling the user that the display/screen/window is share does not seems
like a problem to me, but indeed possibly make a bit less sense outside of
remote support kind of use case.
>
> I would like to hear ideas from the GNOME community about how to best support
> the latter use case for remote desktop. Is there a secure way to bypass the
> dialog/prompt selectively for apps? There seems to be recent support for
Note that VNC/password in that context is not very secure, should likely be used
in local and controlled network. But this is specific to VNC and might not be
relevant what you suggest.
> restoring the capture streams (if persistence was demanded previously by the
> user) using flatpak permission
> store:https://gitlab.gnome.org/GNOME/xdg-desktop-portal-gnome/-/merge_requests
> /14 but remembering streams for remote desktop session is explicitly
> disallowed in the portal frontend
> (https://github.com/flatpak/xdg-desktop-portal/blob/master/src/screen-cast.c#L
> 589-L594 -- though this doesn't seem to be GNOME specific). Is it reasonable
> to extend the stream restoration support to work for remote desktop sessions
> as well as pre-populating the permission store to allow remote desktop session
> (so that user intervention can be avoided)? Also, would pre-populating the
> permission store work for system installation of CRD or would only work for
> flatpak/sandboxed version of the app?
>
> Looking at how other software/systems are supporting screen capture/remote
> desktop, we see wlroots/sway allows for configuring the output screen to
> capture in a config file
> (https://github.com/emersion/xdg-desktop-portal-wlr/blob/master/xdg-desktop-po
> rtal-wlr.5.scd#description). I believe Windows.Graphics.Capture APIs can also
> allow Win32 apps to capture a window/screen without user interaction.
>
> Would love to hear thoughts from the community about the best way forward.
>
> Thanks,
> Salman
>
>
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