Re: [hybi] New Version Notification for draft-mcmanus-httpbis-h2-websockets-00.txt
Patrick McManus <pmcmanus@mozilla.com> Sun, 15 October 2017 20:39 UTC
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From: Patrick McManus <pmcmanus@mozilla.com>
Date: Sun, 15 Oct 2017 16:38:59 -0400
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To: Andy Green <andy@warmcat.com>
Cc: hybi <hybi@ietf.org>, Cory Benfield <cory@lukasa.co.uk>, Patrick McManus <mcmanus@ducksong.com>, HTTP Working Group <ietf-http-wg@w3.org>
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Subject: Re: [hybi] New Version Notification for draft-mcmanus-httpbis-h2-websockets-00.txt
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Hey Andy - it sounds like my 2 mails on this thread mght not have been posted to hybi? I'll try here with @mozilla.com addr. Thanks for the note. On Sun, Oct 15, 2017 at 3:24 PM, Andy Green <andy@warmcat.com> wrote: > > 2) > This simply isn't true, thanks. I'll rephrase > 4) The draft should spell out it carries ws payload unchanged in h2 > frames. Streams that have been successfully established as protocol tunnels proceed to establish and utilize the WebSocket Protocol using the procedure defined by [RFC6455 <https://tools.ietf.org/html/rfc6455>] treating the stream as if were the connection in that specification. Obviously there are approaches that could do far more significant things to the protocol. This is a shim for bootstrapping 6455, otherwise 6455 remains in tact. 5) Hybi originally did the ws handshake key dance with hashes to ensure > there were no inadvertant ws handshakes see 4. > 6) If you make the ws key dance roundtrip optional, something to keep h1 > clients happy who don't know they're on h2, then you can PUSH_PROMISE a ws > upgrade on a specific subprotocol unilaterally, eliminating roundtrips. If > you are serving html with a you can only push safe methods. connect is not safe. Again, I agree you could remove an rtt (or probably 2) with a different approach at a cost of higher complexity and changes. That's not the target here. \ > >Doesn’t the introduction of a new pseudo-header field violate RFC 7540 > >Section 8.1.2.1, which says endpoints MUST NOT generate new > >pseudo-header fields? > > > >Or is the position that that MUST NOT implicitly applies only if there > >are no negotiated extensions in use? > > That is a good point... won't a new Sec-whatever do? Being able to use > whatever it is in PUSH_PROMISE to unilaterally offer an unambiguous > pre-upgraded ws stream would be very nice. > I answered this is a message that probably wasn't posted to hybi https://lists.w3.org/Archives/Public/ietf-http-wg/2017OctDec/0034.html.. tl;dr; an opt-in extension lets you amend 7540 in ways that would be protocol violations without the opt-in. pseudo-headers are meant to control protocol level features and are unique to that version of the protocol - so this helps ensure that the Sec- header wasn't introduced by some other non h2 application . -Patrick > -Andy > > >Cory > > > >> On 15 Oct 2017, at 07:12, Patrick McManus <mcmanus@ducksong.com> > >wrote: > >> > >> FYI - also see > >https://github.com/mcmanus/draft-h2ws/blob/master/README.md > >> > >> Comments, expressions of interest, etc are very welcome. > >> > >> > >> ---------- Forwarded message ---------- > >> From: <internet-drafts@ietf.org> > >> Date: Sun, Oct 15, 2017 at 10:08 AM > >> Subject: New Version Notification for > >draft-mcmanus-httpbis-h2-websockets-00.txt > >> To: Patrick McManus <mcmanus@ducksong.com> > >> > >> > >> > >> A new version of I-D, draft-mcmanus-httpbis-h2-websockets-00.txt > >> has been successfully submitted by Patrick McManus and posted to the > >> IETF repository. > >> > >> Name: draft-mcmanus-httpbis-h2-websockets > >> Revision: 00 > >> Title: Bootstrapping WebSockets with HTTP/2 > >> Document date: 2017-10-15 > >> Group: Individual Submission > >> Pages: 7 > >> URL: > >https://www.ietf.org/internet-drafts/draft-mcmanus- > httpbis-h2-websockets-00.txt > >> Status: > >https://datatracker.ietf.org/doc/draft-mcmanus-httpbis-h2-websockets/ > >> Htmlized: > >https://tools.ietf.org/html/draft-mcmanus-httpbis-h2-websockets-00 > >> Htmlized: > >https://datatracker.ietf.org/doc/html/draft-mcmanus- > httpbis-h2-websockets-00 > >> > >> > >> Abstract: > >> This document defines a mechanism for running the WebSocket > >Protocol > >> [RFC6455] over a single stream of an HTTP/2 connection. > >> > >> > >> > >> > >> Please note that it may take a couple of minutes from the time of > >submission > >> until the htmlized version and diff are available at tools.ietf.org. > >> > >> The IETF Secretariat > >> > >> > >
- Re: [hybi] New Version Notification for draft-mcm… Cory Benfield
- Re: [hybi] New Version Notification for draft-mcm… Andy Green
- Re: [hybi] New Version Notification for draft-mcm… Patrick McManus
- Re: [hybi] New Version Notification for draft-mcm… Andy Green
- Re: [hybi] New Version Notification for draft-mcm… Martin Thomson
- Re: [hybi] New Version Notification for draft-mcm… Andy Green
- Re: [hybi] New Version Notification for draft-mcm… Martin Thomson
- Re: [hybi] New Version Notification for draft-mcm… Andy Green
- Re: [hybi] New Version Notification for draft-mcm… Martin Thomson
- Re: [hybi] New Version Notification for draft-mcm… Andy Green
- Re: [hybi] New Version Notification for draft-mcm… Martin Thomson
- Re: [hybi] New Version Notification for draft-mcm… Andy Green
- Re: [hybi] New Version Notification for draft-mcm… Martin Thomson
- Re: [hybi] New Version Notification for draft-mcm… Jesse Wilson
- Re: [hybi] New Version Notification for draft-mcm… Patrick McManus
- Re: [hybi] New Version Notification for draft-mcm… Lucas Pardue
- Re: [hybi] New Version Notification for draft-mcm… Mike Bishop
- Re: [hybi] New Version Notification for draft-mcm… Patrick McManus
- Re: [hybi] New Version Notification for draft-mcm… Stefan Eissing
- Re: [hybi] New Version Notification for draft-mcm… Patrick McManus
- Re: [hybi] New Version Notification for draft-mcm… Patrick McManus
- Re: [hybi] New Version Notification for draft-mcm… Stefan Eissing
- Re: [hybi] New Version Notification for draft-mcm… Loïc Hoguin
- Re: [hybi] New Version Notification for draft-mcm… Patrick McManus
- Re: [hybi] New Version Notification for draft-mcm… Stefan Eissing
- Re: [hybi] New Version Notification for draft-mcm… Stefan Eissing
- Re: [hybi] New Version Notification for draft-mcm… Patrick McManus
- Re: [hybi] New Version Notification for draft-mcm… Mike Bishop
- Re: [hybi] New Version Notification for draft-mcm… Andy Green
- Re: [hybi] New Version Notification for draft-mcm… Mike Bishop
- Re: [hybi] New Version Notification for draft-mcm… Mark Nottingham
- Re: [hybi] New Version Notification for draft-mcm… Julian Reschke