X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=lib%2FPublicInbox%2FOverIdx.pm;h=64277342a15e809f31ac1d12565c8f6d135c3d04;hb=8742421ba3503e1865b9f1a2561318e3a58c4b3c;hp=62fec0dafb4056118a320ca3fe5ba42030b1fa33;hpb=cfb8d16578e7f2f2e300f9f436205e4a8fc7f322;p=public-inbox.git

diff --git a/lib/PublicInbox/OverIdx.pm b/lib/PublicInbox/OverIdx.pm
index 62fec0da..64277342 100644
--- a/lib/PublicInbox/OverIdx.pm
+++ b/lib/PublicInbox/OverIdx.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2018 all contributors <meta@public-inbox.org>
+# Copyright (C) 2018-2019 all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
 # for XOVER, OVER in NNTP, and feeds/homepage/threads in PSGI
@@ -14,7 +14,7 @@ use base qw(PublicInbox::Over);
 use IO::Handle;
 use DBI qw(:sql_types); # SQL_BLOB
 use PublicInbox::MID qw/id_compress mids references/;
-use PublicInbox::SearchMsg;
+use PublicInbox::SearchMsg qw(subject_normalized);
 use Compress::Zlib qw(compress);
 use PublicInbox::Search;
 
@@ -79,8 +79,15 @@ sub mid2id {
 }
 
 sub delete_by_num {
-	my ($self, $num) = @_;
+	my ($self, $num, $tid_ref) = @_;
 	my $dbh = $self->{dbh};
+	if ($tid_ref) {
+		my $sth = $dbh->prepare_cached(<<'', undef, 1);
+SELECT tid FROM over WHERE num = ? LIMIT 1
+
+		$sth->execute($num);
+		$$tid_ref = $sth->fetchrow_array; # may be undef
+	}
 	foreach (qw(over id2num)) {
 		$dbh->prepare_cached(<<"")->execute($num);
 DELETE FROM $_ WHERE num = ?
@@ -230,6 +237,15 @@ sub parse_references ($$$) {
 	\@keep;
 }
 
+# normalize subjects so they are suitable as pathnames for URLs
+# XXX: consider for removal
+sub subject_path ($) {
+	my ($subj) = @_;
+	$subj = subject_normalized($subj);
+	$subj =~ s![^a-zA-Z0-9_\.~/\-]+!_!g;
+	lc($subj);
+}
+
 sub add_overview {
 	my ($self, $mime, $bytes, $num, $oid, $mid0) = @_;
 	my $lines = $mime->body_raw =~ tr!\n!\n!;
@@ -245,7 +261,7 @@ sub add_overview {
 	my $subj = $smsg->subject;
 	my $xpath;
 	if ($subj ne '') {
-		$xpath = PublicInbox::Search::subject_path($subj);
+		$xpath = subject_path($subj);
 		$xpath = id_compress($xpath);
 	}
 	my $dd = $smsg->to_doc_data($oid, $mid0);
@@ -262,7 +278,7 @@ sub add_over {
 	my $vivified = 0;
 
 	$self->begin_lazy;
-	$self->delete_by_num($num);
+	$self->delete_by_num($num, \$old_tid);
 	foreach my $mid (@$mids) {
 		my $v = 0;
 		each_by_mid($self, $mid, ['tid'], sub {
@@ -310,14 +326,35 @@ sub delete_articles {
 	$self->delete_by_num($_) foreach @$nums;
 }
 
+# returns number of removed messages
+# $oid may be undef to match only on $mid
 sub remove_oid {
 	my ($self, $oid, $mid) = @_;
+	my $nr = 0;
 	$self->begin_lazy;
 	each_by_mid($self, $mid, ['ddd'], sub {
 		my ($smsg) = @_;
-		$self->delete_by_num($smsg->{num}) if $smsg->{blob} eq $oid;
+		if (!defined($oid) || $smsg->{blob} eq $oid) {
+			$self->delete_by_num($smsg->{num});
+			$nr++;
+		}
 		1;
 	});
+	$nr;
+}
+
+sub num_mid0_for_oid {
+	my ($self, $oid, $mid) = @_;
+	my ($num, $mid0);
+	$self->begin_lazy;
+	each_by_mid($self, $mid, ['ddd'], sub {
+		my ($smsg) = @_;
+		my $blob = $smsg->{blob};
+		return 1 if (!defined($blob) || $blob ne $oid); # continue;
+		($num, $mid0) = ($smsg->{num}, $smsg->{mid});
+		0; # done
+	});
+	($num, $mid0);
 }
 
 sub create_tables {