1 # Copyright (C) 2020 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # Read-only external (detached) index for cross inbox search.
5 # This is a read-only counterpart to PublicInbox::ExtSearchIdx
6 # and behaves like PublicInbox::Inbox AND PublicInbox::Search
7 package PublicInbox::ExtSearch;
10 use PublicInbox::Over;
11 use PublicInbox::Inbox;
13 use PublicInbox::MiscSearch;
14 use DBI qw(:sql_types); # SQL_BLOB
16 # for ->reopen, ->mset, ->mset_to_artnums
17 use parent qw(PublicInbox::Search);
20 my (undef, $topdir) = @_;
21 $topdir = File::Spec->canonpath($topdir);
25 xpfx => "$topdir/ei".PublicInbox::Search::SCHEMA_VERSION
31 $self->{misc} //= PublicInbox::MiscSearch->new("$self->{xpfx}/misc");
34 sub search { $_[0] } # self
36 # overrides PublicInbox::Search::_xdb
42 # same as per-inbox ->over, for now...
45 $self->{over} //= PublicInbox::Over->new("$self->{xpfx}/over.sqlite3");
50 $self->{git} //= PublicInbox::Git->new("$self->{topdir}/ALL.git");
53 # returns an arrayref of [ $NEWSGROUP_NAME:$ART_NO ] using
55 sub nntp_xref_for { # NNTP only
56 my ($self, $xibx, $xsmsg) = @_;
57 my $dbh = over($self)->dbh;
59 my $sth = $dbh->prepare_cached(<<'', undef, 1);
60 SELECT ibx_id FROM inboxes WHERE eidx_key = ? LIMIT 1
62 $sth->execute($xibx->{newsgroup});
63 my $xibx_id = $sth->fetchrow_array // do {
64 warn "W: `$xibx->{newsgroup}' not found in $self->{topdir}\n";
68 $sth = $dbh->prepare_cached(<<'', undef, 1);
69 SELECT docid FROM xref3 WHERE oidbin = ? AND xnum = ? AND ibx_id = ? LIMIT 1
71 $sth->bind_param(1, pack('H*', $xsmsg->{blob}), SQL_BLOB);
72 $sth->bind_param(2, $xsmsg->{num});
73 $sth->bind_param(3, $xibx_id);
75 my $docid = $sth->fetchrow_array // do {
77 W: `$xibx->{newsgroup}:$xsmsg->{num}' not found in $self->{topdir}"
82 # LIMIT is number of newsgroups on server:
83 $sth = $dbh->prepare_cached(<<'', undef, 1);
84 SELECT ibx_id,xnum FROM xref3 WHERE docid = ?
86 $sth->execute($docid);
87 my $rows = $sth->fetchall_arrayref;
89 my $eidx_key_sth = $dbh->prepare_cached(<<'', undef, 1);
90 SELECT eidx_key FROM inboxes WHERE ibx_id = ? LIMIT 1
93 my ($ibx_id, $xnum) = @$_;
94 if ($ibx_id == $xibx_id) {
97 $eidx_key_sth->execute($ibx_id);
98 my $eidx_key = $eidx_key_sth->fetchrow_array;
100 # only include if there's a newsgroup name
101 $eidx_key && index($eidx_key, '/') >= 0 ?
102 () : ($eidx_key => $xnum)
105 [ map { "$_:$xref{$_}" } sort keys %xref ]; # match NNTP LIST order
114 ($self->{description} //=
115 PublicInbox::Inbox::cat_desc("$self->{topdir}/description")) //
116 '$EXTINDEX_DIR/description missing';
119 sub cloneurl { [] } # TODO
121 sub base_url { 'https://example.com/TODO/' }
125 *smsg_eml = \&PublicInbox::Inbox::smsg_eml;
126 *smsg_by_mid = \&PublicInbox::Inbox::smsg_by_mid;
127 *msg_by_mid = \&PublicInbox::Inbox::msg_by_mid;
128 *modified = \&PublicInbox::Inbox::modified;
129 *recent = \&PublicInbox::Inbox::recent;
131 *max_git_epoch = *nntp_usable = *msg_by_path = \&mm; # undef