-# Copyright (C) 2016 all contributors <meta@public-inbox.org>
+# Copyright (C) 2016-2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
#
# Plack app redirector for mapping /$NEWSGROUP requests to
use strict;
use warnings;
use PublicInbox::Config;
-use URI::Escape qw(uri_escape_utf8);
+use PublicInbox::MID qw(mid_escape);
+use PublicInbox::Hval qw(prurl);
sub new {
- my ($class, $pi_config) = @_;
- $pi_config ||= PublicInbox::Config->new;
- bless { pi_config => $pi_config }, $class;
+ my ($class, $pi_cfg) = @_;
+ bless { pi_cfg => $pi_cfg // PublicInbox::Config->new }, $class;
+}
+
+sub redirect ($$) {
+ my ($code, $url) = @_;
+ [ $code,
+ [ Location => $url, 'Content-Type' => 'text/plain' ],
+ [ "Redirecting to $url\n" ] ]
+}
+
+sub try_inbox {
+ my ($ibx, $arg) = @_;
+ return if scalar(@$arg) > 1;
+
+ # do not pass $env since HTTP_HOST may differ
+ my $url = $ibx->base_url or return;
+
+ my ($mid) = @$arg;
+ eval { $ibx->mm->num_for($mid) } or return;
+
+ # 302 since the same message may show up on
+ # multiple inboxes and inboxes can be added/reordered
+ $arg->[1] = redirect(302, $url .= mid_escape($mid) . '/');
}
sub call {
my ($self, $env) = @_;
- my $ng_map = $self->newsgroup_map;
- my $path = $env->{PATH_INFO};
- $path =~ s!\A/+!!;
- $path =~ s!/+\z!!;
# some links may have the article number in them:
# /inbox.foo.bar/123456
- my ($ng, $article) = split(m!/+!, $path, 2);
- if (my $info = $ng_map->{$ng}) {
- my $url = PublicInbox::Hval::prurl($env, $info->{url});
+ my (undef, @parts) = split(m!/!, $env->{PATH_INFO});
+ my ($ng, $article) = @parts;
+ my $pi_cfg = $self->{pi_cfg};
+ if (my $ibx = $pi_cfg->lookup_newsgroup($ng)) {
+ my $url = prurl($env, $ibx->{url});
my $code = 301;
- my $h = [ Location => $url, 'Content-Type' => 'text/plain' ];
- if (defined $article && $article =~ /\A\d+\z/) {
- my $mid = eval { ng_mid_for($ng, $info, $article) };
+ if (defined $article && $article =~ /\A[0-9]+\z/) {
+ my $mid = eval { $ibx->mm->mid_for($article) };
if (defined $mid) {
# article IDs are not stable across clones,
# do not encourage caching/bookmarking them
$code = 302;
- $url .= uri_escape_utf8($mid) . '/';
+ $url .= mid_escape($mid) . '/';
}
}
-
- return [ $code, $h, [ "Redirecting to $url\n" ] ]
+ return redirect($code, $url);
}
- [ 404, [ 'Content-Type' => 'text/plain' ], [] ];
-}
-
-sub ng_mid_for {
- my ($ng, $info, $article) = @_;
- # may fail due to lack of Danga::Socket
- # for defer_weaken:
- require PublicInbox::NewsGroup;
- $ng = $info->{ng} ||=
- PublicInbox::NewsGroup->new($ng, $info->{git_dir}, '');
- $ng->mm->mid_for($article);
-}
-sub newsgroup_map {
- my ($self) = @_;
- my $rv;
- $rv = $self->{ng_map} and return $rv;
- my $pi_config = $self->{pi_config};
- my %ng_map;
- foreach my $k (keys %$pi_config) {
- $k =~ /\Apublicinbox\.([^\.]+)\.mainrepo\z/ or next;
- my $inbox = $1;
- my $git_dir = $pi_config->{"publicinbox.$inbox.mainrepo"};
- my $url = $pi_config->{"publicinbox.$inbox.url"};
- defined $url or next;
- my $ng = $pi_config->{"publicinbox.$inbox.newsgroup"};
- next if (!defined $ng) || ($ng eq ''); # disabled
+ my @try = (join('/', @parts));
- $url =~ m!/\z! or $url .= '/';
- $ng_map{$ng} = { url => $url, git_dir => $git_dir };
+ # trailing slash is in the rest of our WWW, so maybe some users
+ # will assume it:
+ if ($parts[-1] eq '') {
+ pop @parts;
+ push @try, join('/', @parts);
+ }
+ my $ALL = $pi_cfg->ALL;
+ if (my $over = $ALL ? $ALL->over : undef) {
+ my $by_eidx_key = $pi_cfg->{-by_eidx_key};
+ for my $mid (@try) {
+ my ($id, $prev);
+ while (my $x = $over->next_by_mid($mid, \$id, \$prev)) {
+ my $xr3 = $over->get_xref3($x->{num});
+ for (@$xr3) {
+ s/:[0-9]+:$x->{blob}\z// or next;
+ my $ibx = $by_eidx_key->{$_} // next;
+ my $url = $ibx->base_url or next;
+ $url .= mid_escape($mid) . '/';
+ return redirect(302, $url);
+ }
+ }
+ }
+ } else { # slow path, scan every inbox
+ for my $mid (@try) {
+ my $arg = [ $mid ]; # [1] => result
+ $pi_cfg->each_inbox(\&try_inbox, $arg);
+ return $arg->[1] if $arg->[1];
+ }
}
- $self->{ng_map} = \%ng_map;
+ [ 404, [qw(Content-Type text/plain)], ["404 Not Found\n"] ];
}
1;