Re: [tor-dev] Optimistic SOCKS Data

[Nick Mathewson <nickm@xxxxxxxxxxxxx>]

On Fri, Sep 27, 2019 at 1:35 PM Tom Ritter <tom@xxxxxxxxx> wrote:
>
> On Mon, 5 Aug 2019 at 18:33, Tom Ritter <tom@xxxxxxxxx> wrote:
> >
> > On Tue, 2 Jul 2019 at 09:23, Tom Ritter <tom@xxxxxxxxx> wrote:
> > > Or... something else?  Very interested in what David/asn think since
> > > they worked on #30382 ...
> >
> > I never updated this thread after discussing with people on irc.
> >
> > So the implementation of
> > SOCKS-error-code-for-an-Onion-Service-needs-auth implementation is
> > done. David (if I'm summarizing correctly) felt that the SOCKS Error
> > code approach may not be the best choice given our desire for
> > optimistic data; but felt it was up to the Tor Browser team to decide.
> >
> > In the goal of something that works for 90%+ of use case today, the
> > rest later, I'll propose the following:
> >
> > In little-t tor, detect if we're connecting to an onion site, and if
> > so do not early-report SOCKS connection.
> >
> > Another ugly option is to early-report a successful SOCKS connection
> > even for onion sites, and if we later receive an auth request, send an
> > HTTP error code like 407 that we then detect over in the browser and
> > use to prompt the user. I don't like this because it is considerably
> > more work (I expect), horrible ugly layering violations, and I don't
> > think it will work for https://onion links.
>
> I attached an updated proposal taking this into account, and I'd like
> to request it be entered into torspec's proposals list.

Okay!  This is now proposal 309.
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