1 # Copyright (C) 2015 all contributors <meta@public-inbox.org>
2 # License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
4 # Used by the web interface to link to messages outside of the our
5 # public-inboxes. Mail threads may cross projects/threads; so
6 # we should ensure users can find more easily find them on other
8 package PublicInbox::ExtMsg;
11 use PublicInbox::Hval;
12 use PublicInbox::MID qw/mid2path/;
13 use PublicInbox::WwwStream;
15 # TODO: user-configurable
17 'http://mid.gmane.org/%s',
18 'https://lists.debian.org/msgid-search/%s',
19 # leading "//" denotes protocol-relative (http:// or https://)
20 '//mid.mail-archive.com/%s',
26 my $cur = $ctx->{-inbox};
27 my $mid = $ctx->{mid};
29 eval { require PublicInbox::Search };
30 my $have_xap = $@ ? 0 : 1;
31 my (@nox, @ibx, @found);
33 $ctx->{www}->{pi_config}->each_inbox(sub {
35 return if $other->{name} eq $cur->{name} || !$other->base_url;
37 my $s = $other->search;
43 # try to find the URL with Xapian to avoid forking
44 my $doc_id = eval { $s->find_unique_doc_id('mid', $mid) };
46 # xapian not configured properly for this repo
52 if (defined $doc_id) {
55 # no point in trying the fork fallback if we
56 # know Xapian is up-to-date but missing the
57 # message in the current repo
62 return exact($ctx, \@found, $mid) if @found;
64 # Xapian not installed or configured for some repos,
65 # do a full MID check (this is expensive...):
67 my $path = mid2path($mid);
68 foreach my $other (@nox) {
69 my (undef, $type, undef) = $other->path_check($path);
71 if ($type && $type eq 'blob') {
76 return exact($ctx, \@found, $mid) if @found;
78 # fall back to partial MID matching
82 eval { require PublicInbox::Msgmap };
83 my $have_mm = $@ ? 0 : 1;
88 foreach my $ibx (@ibx) {
89 my $mm = $ibx->mm or next;
90 if (my $res = $mm->mid_prefixes($tmp_mid)) {
91 $n_partial += scalar(@$res);
92 push @partial, [ $ibx, $res ];
95 # fixup common errors:
96 if (!$n_partial && $tmp_mid =~ s,/[tTf],,) {
102 my $h = PublicInbox::Hval->new_msgid($mid);
103 my $href = $h->as_href;
104 my $html = $h->as_html;
105 my $title = "<$html> not found";
106 my $s = "<pre>Message-ID <$html>\nnot found\n";
109 my $es = $n_partial == 1 ? '' : 'es';
110 $s .= "\n$n_partial partial match$es found:\n\n";
111 my $cur_name = $cur->{name};
112 foreach my $pair (@partial) {
113 my ($ibx, $res) = @$pair;
114 my $env = $ctx->{env} if $ibx->{name} eq $cur_name;
115 my $u = $ibx->base_url($env) or next;
116 foreach my $m (@$res) {
117 my $p = PublicInbox::Hval->new_msgid($m);
120 $s .= qq{<a\nhref="$u$r/">$u$t/</a>\n};
124 my $ext = ext_urls($ctx, $mid, $href, $html);
129 $ctx->{-html_tip} = $s .= '</pre>';
130 $ctx->{-title_html} = $title;
131 $ctx->{-upfx} = '../';
132 PublicInbox::WwwStream->response($ctx, $code);
136 my ($ctx, $mid, $href, $html) = @_;
138 # Fall back to external repos if configured
139 if (@EXT_URL && index($mid, '@') >= 0) {
140 my $env = $ctx->{env};
141 my $e = "\nPerhaps try an external site:\n\n";
142 foreach my $url (@EXT_URL) {
143 my $u = PublicInbox::Hval::prurl($env, $url);
144 my $r = sprintf($u, $href);
145 my $t = sprintf($u, $html);
146 $e .= qq{<a\nhref="$r">$t</a>\n};
154 my ($ctx, $found, $mid) = @_;
155 my $h = PublicInbox::Hval->new_msgid($mid);
156 my $href = $h->as_href;
157 my $html = $h->as_html;
158 my $title = "<$html> found in ";
159 my $end = @$found == 1 ? 'another inbox' : 'other inboxes';
160 $ctx->{-title_html} = $title . $end;
161 $ctx->{-upfx} = '../';
162 my $ext_urls = ext_urls($ctx, $mid, $href, $html);
163 my $code = (@$found == 1 && $ext_urls eq '') ? 200 : 300;
164 $ctx->{-html_tip} = join('',
165 "<pre>Message-ID: <$html>\nfound in $end:\n\n",
167 my $u = $_->base_url;
168 qq(<a\nhref="$u$href/">$u$html/</a>\n)
170 $ext_urls, '</pre>');
171 PublicInbox::WwwStream->response($ctx, $code);