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From: Jeff King <peff@peff.net>
To: Jonathan Nieder <jrnieder@gmail.com>
Cc: "Max Kirillov" <max@max630.net>,
	git@vger.kernel.org, "Jelmer Vernooij" <jelmer@jelmer.uk>,
	"Florian Manschwetus" <manschwetus@cs-software-gmbh.de>
Subject: Re: [PATCH] http-backend: Treat empty CONTENT_LENGTH as zero
Date: Mon, 10 Sep 2018 21:55:53 -0400
Message-ID: <20180911015553.GA5838@sigill.intra.peff.net> (raw)
In-Reply-To: <20180910212221.GG26356@aiede.svl.corp.google.com>

On Mon, Sep 10, 2018 at 02:22:21PM -0700, Jonathan Nieder wrote:

> Thanks.  I am wondering if we should go all the way and do
> 
> 	ssize_t val;
> 	const char *str = getenv("CONTENT_LENGTH");
> 
> 	if (!str || !*str)
> 		return 0;
> 	if (!git_parse_ssize_t(str, &val))
> 		die(...);
> 	return val;
> 
> That would match the RFC, but it seems to make t5510-fetch.sh hang,
> right after
> 
>   ok 165 - --negotiation-tip understands abbreviated SHA-1
> 
> When I run with -v -i -x, it stalls at
> 
>   ++ git -C '/usr/local/google/home/jrn/src/git/t/trash directory.t5510-fetch/httpd/www/server' tag -d alpha_1 alpha_2 beta_1 beta_2
>   Deleted tag 'alpha_1' (was a84e4a9)
>   Deleted tag 'alpha_2' (was 7dd5cf4)
>   Deleted tag 'beta_1' (was bcb5c65)
>   Deleted tag 'beta_2' (was d3b6dcd)
>   +++ pwd
>   ++ GIT_TRACE_PACKET='/usr/local/google/home/jrn/src/git/t/trash directory.t5510-fetch/trace'
>   ++ git -C client fetch --negotiation-tip=alpha_1 --negotiation-tip=beta_1 origin alpha_s beta_s
> 
> Do you know why?

Yes. :)

It's due to this comment in the patch you are replying to:

+       if (!str) {
+               /*
+                * RFC3875 says this must mean "no body", but in practice we
+                * receive chunked encodings with no CONTENT_LENGTH. Tell the
+                * caller to read until EOF.
+                */
+               val = -1;

-Peff

  reply index

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-06  6:10 CONTENT_LENGTH can no longer be empty Jonathan Nieder
2018-09-06 19:35 ` [PATCH] http-backend: allow empty CONTENT_LENGTH Max Kirillov
2018-09-06 21:54   ` Junio C Hamano
2018-09-07  3:27     ` Max Kirillov
2018-09-07  3:38       ` Jeff King
2018-09-07  4:20         ` Max Kirillov
2018-09-07  4:59         ` Max Kirillov
2018-09-07  9:49           ` Junio C Hamano
2018-09-08  5:41             ` Max Kirillov
2018-09-09  4:40             ` Max Kirillov
2018-09-06 22:45   ` Jonathan Nieder
2018-09-07  3:36   ` [PATCH v2] " Max Kirillov
2018-09-09  4:10     ` [PATCH v4] " Max Kirillov
2018-09-10  5:25       ` Jonathan Nieder
2018-09-10 13:17         ` Jeff King
2018-09-10 16:37           ` Junio C Hamano
2018-09-10 18:46             ` Jeff King
2018-09-10 20:53         ` [PATCH] http-backend: Treat empty CONTENT_LENGTH as zero Max Kirillov
2018-09-10 21:22           ` Jonathan Nieder
2018-09-11  1:55             ` Jeff King [this message]
2018-09-11  2:20               ` Jonathan Nieder
2018-09-11  2:30                 ` Jeff King
2018-09-11  1:58           ` Jeff King
2018-09-11  3:42           ` [PATCH] http-backend: treat " Jonathan Nieder
2018-09-11  4:03             ` Jonathan Nieder
2018-09-11 18:15               ` Junio C Hamano
2018-09-11 18:27                 ` Junio C Hamano
2018-09-12  5:56                 ` Jeff King
2018-09-12  6:26                   ` Jonathan Nieder
2018-09-12 16:10                   ` Junio C Hamano
2018-09-11  4:18             ` Junio C Hamano
2018-09-11  4:29               ` Jonathan Nieder
2018-09-08  0:19 [PATCH v2] http-backend: allow empty CONTENT_LENGTH Jonathan Nieder
2018-09-08  5:35 ` Max Kirillov
2018-09-08  5:42 ` [PATCH v3] " Max Kirillov
2018-09-10  5:17   ` Jonathan Nieder
2018-09-10 20:36     ` Max Kirillov
2018-09-11  4:06 Jonathan Nieder
2018-09-11 20:33 ` [PATCH v2] http-backend test: make empty CONTENT_LENGTH test more realistic Max Kirillov

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