> Which parts of the system (provider, hub, subscriber) need to know the guid
> and/or timestamp for each thing?

I could be wrong, but the provider should either have or generate
them, the hub *may* use them for idempotency in the case of "fat
pings" (hate that phrase, but is the language used around here) but
certainly doesn't need them, and then the subscriber *should* use them
for the same reason.

-jeff


> --
> John Panzer / Google
> [email protected] / abstractioneer.org / @jpanzer
>
>
> On Fri, Feb 25, 2011 at 5:04 PM, Jeff Lindsay <[email protected]> wrote:
>>
>> To summarize the problem from my understanding: Atom comes with unique
>> IDs/dates for each entry. Arbitrary payloads would have to put it in
>> the headers. Then signing (as proposed in the header) would have to
>> somehow include that to be useful against replays.
>>
>> I thought about it and I feel like we might be able to come up with
>> something, but, you know, if you're doing arbitrary payloads you might
>> already have this in your body! I think the burden of putting a unique
>> ID in your payload is much easier than telling your users they have to
>> use HTTPS (even though I agree everybody should be using it).
>>
>> -jeff
>>
>> On Fri, Feb 25, 2011 at 2:42 PM, Brett Slatkin <[email protected]> wrote:
>> > Good discussion. Separating distribution from semantics is a
>> > worthwhile goal. Probably the easiest goal to achieve, too.
>> >
>> > I banged my head against this problem a few months ago. Where I left
>> > off was that we need a solution to the HTTP "turducken" problem. Can
>> > you guys go over this thread for me?
>> >
>> >
>> > http://groups.google.com/group/pubsubhubbub/browse_thread/thread/6bb4b26043059f27?pli=1
>> >
>> > Am I wrong to think we even need to solve this?
>> >
>> > -Brett
>> >
>> >
>> > On Fri, Feb 25, 2011 at 1:15 PM, Alexis Richardson <[email protected]>
>> > wrote:
>> >> +1
>> >>
>> >> On Fri, Feb 25, 2011 at 8:10 PM, Charl van Niekerk
>> >> <[email protected]> wrote:
>> >>> On Fri, 2011-02-25 at 12:02 -0800, Jeff Lindsay wrote:
>> >>>> Yes, this is where I'm at, too. It seems like we're getting there
>> >>>> though. It just seems like (and I could be wrong!) there is a lot of
>> >>>> bias towards Atom/feed semantics. Even the tiniest structure is a
>> >>>> constraint to use cases and adoption. That's all I'm saying. Also
>> >>>> just
>> >>>> the marketing. Is it about feeds or is it a distribution framework?
>> >>>> Because it sounds like the former and that's what people think that I
>> >>>> talk to and they decide it's not worth messing with.
>> >>>
>> >>> Same here, Atom feeds were obviously the most logical place to start
>> >>> and
>> >>> would have the greatest short-term impact on the web as it stands but
>> >>> to
>> >>> have to reinvent the wheel for other formats is kinda ridiculous.
>> >>> Would
>> >>> be awesome to see PubSubHubbub become a more generic distribution
>> >>> framework and be marketed as such!
>> >>>
>> >>>
>> >>
>> >
>>
>>
>>
>> --
>> Jeff Lindsay
>> http://progrium.com
>
>



-- 
Jeff Lindsay
http://progrium.com

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