From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp0 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id GNZ6MoXTt15CBgAA0tVLHw (envelope-from ) for ; Sun, 10 May 2020 10:12:21 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp0 with LMTPS id GNa3E5PTt16BUAAA1q6Kng (envelope-from ) for ; Sun, 10 May 2020 10:12:35 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 1A7E7940D01 for ; Sun, 10 May 2020 10:12:33 +0000 (UTC) Received: from localhost ([::1]:41502 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jXiwj-00008V-T8 for larch@yhetil.org; Sun, 10 May 2020 06:12:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49014) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jXiwE-0008GW-K1 for bug-guix@gnu.org; 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Sun, 10 May 2020 06:11:39 -0400 Received: from eggs.gnu.org ([209.51.188.92]:45962) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jXivd-0005YZ-7w for 37207@debbugs.gnu.org; Sun, 10 May 2020 06:11:25 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:40669) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jXivX-0002jm-N0; Sun, 10 May 2020 06:11:19 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=41870 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jXivW-0005w7-Pr; Sun, 10 May 2020 06:11:19 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <875zmhliqj.fsf@gnu.org> <87o8qwg3te.fsf@cbaines.net> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 22 =?UTF-8?Q?Flor=C3=A9al?= an 228 de la =?UTF-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Sun, 10 May 2020 12:11:16 +0200 In-Reply-To: <87o8qwg3te.fsf@cbaines.net> (Christopher Baines's message of "Sat, 09 May 2020 23:07:41 +0100") Message-ID: <874ksoaym3.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; 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MX_GOOD(-0.50)[cached: eggs.gnu.org]; RCPT_COUNT_TWO(0.00)[2]; MAILLIST(-0.20)[mailman]; FORGED_RECIPIENTS_MAILLIST(0.00)[]; RCVD_IN_DNSWL_FAIL(0.00)[209.51.188.17:server fail]; RCVD_TLS_LAST(0.00)[]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:22989, ipnet:209.51.188.0/24, country:US]; MID_RHS_MATCH_FROM(0.00)[]; TAGGED_FROM(0.00)[larch=yhetil.org]; ARC_NA(0.00)[]; FROM_NEQ_ENVFROM(0.00)[ludo@gnu.org,bug-guix-bounces@gnu.org]; FROM_HAS_DN(0.00)[]; URIBL_BLOCKED(0.00)[gnu.org:email,cbaines.net:email]; MIME_GOOD(-0.10)[text/plain]; MIME_TRACE(0.00)[0:+]; DMARC_NA(0.00)[gnu.org]; HAS_LIST_UNSUB(-0.01)[]; RWL_MAILSPIKE_POSSIBLE(0.00)[209.51.188.17:from]; RCVD_COUNT_SEVEN(0.00)[9]; FORGED_SENDER_MAILLIST(0.00)[] X-TUID: x4PMwSw+8MUV Howdy! Christopher Baines skribis: > Ludovic Court=C3=A8s writes: > >> Since the use of the =E2=80=98static-web-site=E2=80=99 service, which pu= ts web site >> files in the store, nginx returns a =E2=80=98Last-Modified=E2=80=99 head= er that can >> trick clients into caching things forever: >> >> --8<---------------cut here---------------start------------->8--- >> $ wget --debug -O /dev/null https://guix.gnu.org/packages.json 2>&1 | = grep Last >> Last-Modified: Thu, 01 Jan 1970 00:00:01 GMT >> --8<---------------cut here---------------end--------------->8--- >> >> We should tell nginx to do not emit =E2=80=98Last-Modified=E2=80=99, or = to take the >> state from the /srv/guix.gnu.org symlink, if possible. > > I ended up looking at this again in relation to Repology [1]. > > 1: https://github.com/repology/repology-updater/issues/218#issuecomment-5= 25905704 > > Going back to that comment, given that the Last-Modified header (and the > ETag) is wrong, it's probably sensible to remove them. That might even > fix the issue with Repology fetching the packages.json file. > > Alternatively (or in addition), we could run a really simple Guile web > server that just serves the packages.json file with the right > Last-Modified value, and have NGinx proxy requests to that server. This > would be pretty easy to setup I believe, and would allow providing a > correct value. > > Thoughts? I think it wouldn=E2=80=99t really help because the Last-Modified issue is pervasive. It shows for instance when accessing the web site: one often has to force the browser to reload pages to get the latest version. So I=E2=80=99m all for one of the solutions that were proposed earlier. WDYT? Ludo=E2=80=99.