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Re: authentication cache

From: Ben Collins-Sussman <sussman_at_collab.net>
Date: 2003-02-20 21:51:37 CET

Karl Fogel <kfogel@newton.ch.collab.net> writes:

> Garrett Rooney <rooneg@electricjellyfish.net> writes:
> > >I thought we were planning to cache them in there. Garrett, does that
> > >match your understanding?
> >
> > we cache an authentication baton now, i don't know what needs to be
> > done to the baton to make it cache the password, but i thought it
> > would do that automatically...
>
> Hmmm. That sounds like there's a bug then, no?
>
> Ben will know the answer to this off the top of his head :-). He was
> up till three last night, so he just hasn't seen this mail yet.

Heh, this isn't a bug, it's just a libsvn_auth design oversight.

Our main commandline client:

   creates a ctx object
   creates an auth_baton with various providers
   runs a single subcommand
      calls first_creds, next_creds, next_creds ...
   exits

There's simply no caching design here at all, which would be needed by
long-running GUI clients.

What's happening with a GUI client is this:

   creates a ctx object
   creates an auth_baton with various providers
   run many subcommands
      calls first_creds, next_creds, next_creds ...
      calls first_creds, next_creds, next_creds ...
      calls first_creds, next_creds, next_creds ...
   exits

I think the solution here is simple: the auth_baton can cache the last
returned set of credentials (of each type). Then we change first_creds()
to always return the cache, if available. Pretty easy.

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Received on Thu Feb 20 20:52:56 2003

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