----- Original Message ----
> From: Marius Scurtescu <mscurte...@google.com>
> To: Oleg Gryb <o...@gryb.info>
> Cc: oauth@ietf.org
> Sent: Tue, August 3, 2010 9:00:20 AM
> Subject: Re: [OAUTH-WG] Is User Agent Profile Secure in OAuth 2.0?
> 
> On Mon, Aug 2, 2010 at 10:21 PM, Oleg Gryb <oleg_g...@yahoo.com> wrote:
> >  Brian,
> >
> > I think, it's not so much about browsers written in  Python, as about
> > automation (crawler) that somebody might want to  use.
> 
> The User-Agent profile cannot be used by crawlers, the end user  needs
> to be present to approve. 

Why? There are crawlers that can do approval/authentication by providing 
credentials in a request, e.g. when you want to trade stocks at ameritrade.com, 
you usually need to provide creds, but if you're too lazy to do that, you can 
write a crawler that will do it for you. The examples are numerous and very 
common for the user agents written in P/R languages. Regarding AOuth, I can 
envision the following scenario: log to Facebook, select photos, request 
Facebook to print those photos at printig.com


      
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