Eric Wong <e...@80x24.org> wrote:
> Or just use NewsWWW, because nntp://<HOSTNAME>/<Message-ID> is valid.
> Going to think about it while I eat and do other things, but
> will very likely merge it to master, soon.

Yep.  It's in NewsWWW, now.  Also going to add this.  I think
it'll be helpful for nntp.lore.kernel.org to have this on 80/443
because somebody could share NNTP URLs and some software
somewhere will interpret it as "HTTP"

--------8<-------
Subject: [PATCH] examples/newswww.psgi: demonstrate standalone NewsWWW usage

Plack::Builder allows "mounting" on with hostnames as well as
path names to enable virtual hosting.  This example demonstrates
how port 80/443 for "news.example.com" can redirect browser
requests when somebody attempts to use a "nntp://"; URL and
the software assumes "http://";
---
 examples/newswww.psgi | 48 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 examples/newswww.psgi

diff --git a/examples/newswww.psgi b/examples/newswww.psgi
new file mode 100644
index 0000000..0f66782
--- /dev/null
+++ b/examples/newswww.psgi
@@ -0,0 +1,48 @@
+#!/usr/bin/perl -w
+# Copyright (C) 2019 all contributors <meta@public-inbox.org>
+# License: GPL-3.0+ <https://www.gnu.org/licenses/gpl-3.0.txt>
+#
+# NewsWWW may be used independently of WWW.  This can be useful
+# for mapping HTTP/HTTPS requests to the hostname of an NNTP server
+# to redirect users to the proper HTTP/HTTPS endpoint for a given
+# inbox.  NewsWWW exists because people (or software) can mishandle
+# "nntp://"; or "news://"; URLs as "http://"; (or "https://";)
+#
+# Usage:
+#      plackup -I lib -o 127.0.0.1 -R lib -r examples/newswww.psgi
+use strict;
+use warnings;
+use Plack::Builder;
+use PublicInbox::WWW;
+use PublicInbox::NewsWWW;
+
+my $newswww = PublicInbox::NewsWWW->new;
+
+# Optional, (you may drop the "mount '/'" section below)
+my $www = PublicInbox::WWW->new;
+$www->preload;
+
+builder {
+       # HTTP/1.1 requests to "Host: news.example.com" will hit this:
+       mount 'http://news.example.com/' => builder {
+               enable 'Head';
+               sub { $newswww->call($_[0]) };
+       };
+
+       # rest of requests will hit this (optional) part for the
+       # regular PublicInbox::WWW code:
+       # see comments in examples/public-inbox.psgi for more info:
+       mount '/' => builder {
+               eval {
+                       enable 'Deflater',
+                               content_type => [ qw(
+                                       text/html
+                                       text/plain
+                                       application/atom+xml
+                                       )]
+               };
+               eval { enable 'ReverseProxy' };
+               enable 'Head';
+               sub { $www->call($_[0]) }
+       };
+}
-- 
EW
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