[Libwebsockets] [EXT] Re: Missing LWS_CALLBACK_HTTP_BODY_COMPLETION when using H2 https

Avigail Wilk awilk at kramerav.com
Wed Nov 17 13:36:45 CET 2021


What version are you using?
I saw this problem too, in v4.2.
 I didn't have time to check v4.3 yet and was wondering if it might have been solved there.

-----Original Message-----
From: Libwebsockets <libwebsockets-bounces at ml.libwebsockets.org> On Behalf Of S?ren Holm
Sent: Wednesday, November 17, 2021 2:28 PM
To: libwebsockets at ml.libwebsockets.org
Subject: [EXT] Re: [Libwebsockets] Missing LWS_CALLBACK_HTTP_BODY_COMPLETION when using H2 https

Sweet - I'll kill HTTP2 for now them.

Should I reporte hte HTTP2 in a bugreport ?

onsdag den 17. november 2021 12.44.27 CET skrev Andy Green:
> On 11/17/21 10:45, Søren Holm wrote:
> > Hi
> >
> > I get no LWS_CALLBACK_HTTP_BODY_COMPLETION on posts over https - I 
> > do however get that callback if I disable the ssl key and cert. 
> > Thereby running the server in http mode.
> >
> > I use commandline curl for the post.
> >
> > The difference as I can see is that curl somehow end up using HTTP2 
> > on https, but HTTP1.1 on regular http. Forcing curl to use HTTP1.1 
> > on the https brings the callback back.
> >
> > So, is something fweird going on on H2?
>
> It looks like some problem with how it is closed...
>
>  >> curl: (92) HTTP/2 stream 1 was not closed cleanly before end of 
> the
>
> underlying stream
>
> > Can I disable H2 completely without recompiling libwebsocket?
>
> You can disable it for build at cmake with -DLWS_WITH_HTTP2=0.
>
> To do it at runtime, at vhost creation time (or context creation time 
> if you just use the default vhost), you can tell the vhost what alpn 
> services it should offer with info->alpn.  If you leave it NULL, then 
> it figures out what to offer based on what roles are enabled in the build.
>
> In this case if you set it to "http/1.1" it will only advertise h1 to 
> clients at tls level, even if h2 is actually available.
>
> -Andy


--
Søren Holm


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