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Re: [Webpush] Use Case related to subscription sets

Brian Raymor <Brian.Raymor@microsoft.com> Sat, 09 January 2016 01:05 UTC

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From: Brian Raymor <Brian.Raymor@microsoft.com>
To: Hervé Ruellan <herve.ruellan@crf.canon.fr>, Martin Thomson <martin.thomson@gmail.com>
Thread-Topic: [Webpush] Use Case related to subscription sets
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Date: Sat, 09 Jan 2016 01:05:44 +0000
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Cc: Benjamin Bangert <bbangert@mozilla.com>, "webpush@ietf.org" <webpush@ietf.org>
Subject: Re: [Webpush] Use Case related to subscription sets
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Is there any further feedback on Martin's pull request?

https://github.com/webpush-wg/webpush-protocol/pull/67

If there are no objections, I'd like to merge into the webpush draft early next week.

...Brian


-----Original Message-----
From: Hervé Ruellan [mailto:herve.ruellan@crf.canon.fr] 
Sent: Tuesday, November 24, 2015 10:22 AM
To: Martin Thomson <martin.thomson@gmail.com>
Cc: Benjamin Bangert <bbangert@mozilla.com>; webpush@ietf.org; Brian Raymor <Brian.Raymor@microsoft.com>
Subject: Re: [Webpush] Use Case related to subscription sets

Thanks for the pull request.

I find it a good compromise: it covers our use-case while still encouraging UA to reuse subscription sets.

Hervé

On 24/11/15 00:19, Martin Thomson wrote:
> On 23 November 2015 at 13:46, Brian Raymor <Brian.Raymor@microsoft.com> wrote:
> > Perhaps the combination of "user agent decides" with "push service *encourages*"
> > by limiting concurrent HTTP/2 streams is the potential compromise.
>
> That's where I'm headed.  Though I'm also adding "spec *encourages*"
> by using the word MUST.  I don't think that we get any gains for the
> important scenarios if we don't provide at least some encouragement to
> aggregate into a set.
>
> I've added text to the PR that explains what the push service might do
> to punish user agents that don't allow for aggregation.  It's relying
> on the same magical anti-DoS stuff again, which is hardly ever
> perfect, but often adequate in practice.
>
> Here I expect that looking at the connection will work to catch
> genuine but innocent mistakes.  The bad guys are always going to be
> harder to pin down.
>

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