Re: Libproxy support?

[Colin Walters <walters verbum org>]

On Wed, Feb 1, 2017, at 03:49 AM, Paul van Tilburg via ostree-list wrote:
> A question that remains, though, is why OSTree that uses libsoup (as all
> our applications do), seems to bypass the libproxy proxy resolver.

Are your other applications running inside the user session?  I believe
the relevant bit here is the libsoup -> glib -> glib-networking, which provides
implementations of the base GProxyResolver.  It seems likely to me for
example that if for example this is true for your apps now:

https://git.gnome.org/browse/glib-networking/tree/proxy/gnome/gproxyresolvergnome.c?id=f6d8bcb645977afc8256c0132734d352da57e818#n313

It won't be for ostree outside of a session.

> >     * where to leave the authentication credentials?

For this stuff I think we should take this to desktop-devel-list.  My intuition is
to ask "what does epiphany do"?  (git grep proxy in the source) Ah, so it basically just defers to gsettings.
Now...this gets into a messy area of dconf-as-root.  The problem is that root-owned
processes aren't part of a session as such, and so there's questions around
what the lifecycle is of the dconf-daemon that would end up being spawned, etc.

https://wiki.gnome.org/Projects/dconf/SystemAdministrators

is relevant here.

Also on this topic...I believe what PackageKit does is pass the proxy from the
user session to the daemon, which neatly sidesteps a lot of these issues.  Supporting
that would require an ostree daemon, which we should probably have a reference
one as part of the tree.