Re: [OAUTH-WG] Facebook, OAuth, and WRAP
Leah Culver <leah.culver@gmail.com> Wed, 25 November 2009 16:15 UTC
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From: Leah Culver <leah.culver@gmail.com>
Date: Wed, 25 Nov 2009 08:15:28 -0800
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To: Brent Goldman <brent@facebook.com>
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Cc: Naitik Shah <naitik@facebook.com>, "oauth@ietf.org" <oauth@ietf.org>, Luke Shepard <lshepard@facebook.com>
Subject: Re: [OAUTH-WG] Facebook, OAuth, and WRAP
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On Wed, Nov 25, 2009 at 6:10 AM, Brent Goldman <brent@facebook.com> wrote: > > On Nov 24, 2009, at 10:40 PM, Mike Malone wrote: > > > On Tue, Nov 24, 2009 at 10:15 PM, John Panzer <jpanzer@google.com> > > wrote: > >> On Tue, Nov 24, 2009 at 4:35 PM, Mike Malone <mjmalone@gmail.com> > >> wrote: > >>> > >>> On Tue, Nov 24, 2009 at 10:57 AM, David Recordon > >>> <davidrecordon@facebook.com> wrote: > >>>> > >>>> The largest issue in Facebook moving to OAuth 1.0 (and yes, > >>>> Eran's new > >>>> RFC is awesome) is the increase in the number of HTTP requests that > >>>> developers will need to make in comparison to our current > >>>> authentication > >>>> mechanism. > >>> > >>> The OAuth _flow_ (in a browser) requires a couple additional > >>> requests > >>> compared to Facebook Connect (in a browser). But Facebook Connect is > >>> really a different beast since it relies on the Browser and > >>> Javascript > >>> to magically set cookies cross domain and whatnot. I agree that it's > >>> non-trivial to extend OAuth to cover this use case (we've sort of > >>> done > >>> it at Six Apart and the flow is clunky and complicated). And even if > >>> you figure out how to make the flow work you can't really make > >>> requests purely on the client side without compromising your > >>> consumer > >>> secret. > >>> > >>> That said, as far as I can tell, using OAuth for delegated > >>> communication via an intermediary (a web app or iPhone app, for > >>> example) should be doable for Facebook. The only real differences I > >>> see between OAuth and WRAP for this use case are: > >>> * WRAP requires SSL instead of signing URLs > >> > >> Aside: If an SP specified OAuth PLAINTEXT signature mode, and used > >> https: > >> URLs for its API, would there be any effective difference between > >> OAuth and > >> WRAP for that SP? (Best as I can tell the only difference would be a > >> mandated %26 character in the OAuth blob you pass in to get access, > >> but I > >> may be missing something.) > > > > Yea, they're more or less the same. That's one use case for PLAINTEXT > > OAuth. You still have a "signature" though, it's just the base64'd > > signature base string. > > If they're more or less the same (besides the difference you > mentioned), then why not also create an SSL signature mode which > leaves out the oauth_signature param? If SSL mode is this essentially > the same as WRAP, why not actually make this the bridge between the > two specs? > > +1 since this is easy enough to add to most OAuth libraries. I know (at least) the PHP and Python ones break out the signature step into separate methods so we could just add another one for SSL with no oauth_signature. Hmm... the only thing that might have to change is some of the error messages. Leah
- [OAUTH-WG] Facebook, OAuth, and WRAP David Recordon
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP Mike Malone
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP John Panzer
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP Mike Malone
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP Brent Goldman
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP Brent Goldman
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP Leah Culver
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP Mike Malone
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP Brian Eaton
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP Mike Malone
- Re: [OAUTH-WG] Facebook, OAuth, and WRAP Brian Eaton