X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=lib%2FPublicInbox%2FView.pm;h=0b1ec75b31fd3f297bfcf85fdea29364ba5ede8a;hb=ccb66f35d293d3d0e3f9b119f7bd1fa019b93c75;hp=e0d81f0029b9c1a1f5584eb6cf76578b74302f5c;hpb=d42aa8d31212060e107951a64045ab0796d6a56c;p=public-inbox.git

diff --git a/lib/PublicInbox/View.pm b/lib/PublicInbox/View.pm
index e0d81f00..0b1ec75b 100644
--- a/lib/PublicInbox/View.pm
+++ b/lib/PublicInbox/View.pm
@@ -10,7 +10,7 @@ use URI::Escape qw/uri_escape_utf8/;
 use Date::Parse qw/str2time/;
 use PublicInbox::Hval qw/ascii_html/;
 use PublicInbox::Linkify;
-use PublicInbox::MID qw/mid_clean id_compress mid_mime/;
+use PublicInbox::MID qw/mid_clean id_compress mid_mime mid_escape/;
 use PublicInbox::MsgIter;
 use PublicInbox::Address;
 use PublicInbox::WwwStream;
@@ -92,13 +92,13 @@ EOF
 
 sub in_reply_to {
 	my ($hdr) = @_;
-	my $irt = $hdr->header_raw('In-Reply-To');
-
-	return mid_clean($irt) if (defined $irt);
-
-	my $refs = $hdr->header_raw('References');
-	if ($refs && $refs =~ /<([^>]+)>\s*\z/s) {
-		return $1;
+	my %mid = map { $_ => 1 } $hdr->header_raw('Message-ID');
+	my @refs = ($hdr->header_raw('References'),
+			$hdr->header_raw('In-Reply-To'));
+	@refs = ((join(' ', @refs)) =~ /<([^>]+)>/g);
+	while (defined(my $irt = pop @refs)) {
+		next if $mid{"<$irt>"};
+		return $irt;
 	}
 	undef;
 }
@@ -125,16 +125,15 @@ sub index_entry {
 	my $mid_raw = mid_clean(mid_mime($mime));
 	my $id = id_compress($mid_raw, 1);
 	my $id_m = 'm'.$id;
-	my $mid = PublicInbox::Hval->new_msgid($mid_raw);
 
 	my $root_anchor = $ctx->{root_anchor} || '';
-	my $irt = in_reply_to($hdr);
+	my $irt;
 
 	my $rv = "<a\nhref=#e$id\nid=m$id>*</a> ";
 	$subj = '<b>'.ascii_html($subj).'</b>';
 	$subj = "<u\nid=u>$subj</u>" if $root_anchor eq $id_m;
 	$rv .= $subj . "\n";
-	$rv .= _th_index_lite($mid_raw, $irt, $id, $ctx);
+	$rv .= _th_index_lite($mid_raw, \$irt, $id, $ctx);
 	my @tocc;
 	foreach my $f (qw(To Cc)) {
 		my $dst = _hdr_names($hdr, $f);
@@ -142,15 +141,15 @@ sub index_entry {
 	}
 	$rv .= "From: "._hdr_names($hdr, 'From').' @ '._msg_date($hdr)." UTC";
 	my $upfx = $ctx->{-upfx};
-	my $mhref = $upfx . $mid->as_href . '/';
+	my $mhref = $upfx . mid_escape($mid_raw) . '/';
 	$rv .= qq{ (<a\nhref="$mhref">permalink</a> / };
 	$rv .= qq{<a\nhref="${mhref}raw">raw</a>)\n};
 	$rv .= '  '.join('; +', @tocc) . "\n" if @tocc;
 
 	my $mapping = $ctx->{mapping};
-	if (!$mapping && $irt) {
+	if (!$mapping && (defined($irt) || defined($irt = in_reply_to($hdr)))) {
 		my $mirt = PublicInbox::Hval->new_msgid($irt);
-		my $href = $upfx . $mirt->as_href . '/';
+		my $href = $upfx . $mirt->{href}. '/';
 		my $html = $mirt->as_html;
 		$rv .= qq(In-Reply-To: &lt;<a\nhref="$href">$html</a>&gt;\n)
 	}
@@ -164,13 +163,17 @@ sub index_entry {
 		"<a\nhref=\"$mhref\">permalink</a>" .
 		" <a\nhref=\"${mhref}raw\">raw</a>" .
 		" <a\nhref=\"${mhref}#R\">reply</a>";
+
+	my $hr;
 	if (my $pct = $ctx->{pct}) { # used by SearchView.pm
 		$rv .= "\t[relevance $pct->{$mid_raw}%]";
+		$hr = 1;
 	} elsif ($mapping) {
 		my $threaded = 'threaded';
 		my $flat = 'flat';
 		my $end = '';
 		if ($ctx->{flat}) {
+			$hr = 1;
 			$flat = "<b>$flat</b>";
 		} else {
 			$threaded = "<b>$threaded</b>";
@@ -178,9 +181,12 @@ sub index_entry {
 		$rv .= "\t[<a\nhref=\"${mhref}T/#u\">$flat</a>";
 		$rv .= "|<a\nhref=\"${mhref}t/#u\">$threaded</a>]";
 		$rv .= " <a\nhref=#r$id>$ctx->{s_nr}</a>";
+	} else {
+		$hr = $ctx->{-hr};
 	}
 
-	$rv .= $more ? "\n\n" : "\n";
+	$rv .= $more ? '</pre><hr><pre>' : '</pre>' if $hr;
+	$rv;
 }
 
 sub pad_link ($$;$) {
@@ -195,83 +201,83 @@ sub _th_index_lite {
 	my $rv = '';
 	my $mapping = $ctx->{mapping} or return $rv;
 	my $pad = '  ';
-	# map = [children, attr, node, idx, level]
-	my $map = $mapping->{$mid_raw};
-	my $nr_c = scalar @{$map->[0]};
+	my $mid_map = $mapping->{$mid_raw};
+	defined $mid_map or
+		return 'public-inbox BUG: '.ascii_html($mid_raw).' not mapped';
+	my ($attr, $node, $idx, $level) = @$mid_map;
+	my $children = $node->{children};
+	my $nr_c = scalar @$children;
 	my $nr_s = 0;
-	my $level = $map->[4];
-	my $idx = $map->[3];
-	if (defined $irt) {
-		my $irt_map = $mapping->{$irt};
-		my $siblings = $irt_map->[0];
+	my $siblings;
+	if (my $smsg = $node->{smsg}) {
+		($$irt) = (($smsg->{references} || '') =~ m/<([^>]+)>\z/);
+	}
+	my $irt_map = $mapping->{$$irt} if defined $$irt;
+	if (defined $irt_map) {
+		$siblings = $irt_map->[1]->{children};
 		$nr_s = scalar(@$siblings) - 1;
-		$rv .= $pad . $irt_map->[1];
+		$rv .= $pad . $irt_map->[0];
 		if ($idx > 0) {
 			my $prev = $siblings->[$idx - 1];
-			my $pmid = $prev->messageid;
+			my $pmid = $prev->{id};
 			if ($idx > 2) {
 				my $s = ($idx - 1). ' preceding siblings ...';
 				$rv .= pad_link($pmid, $level, $s);
 			} elsif ($idx == 2) {
-				my $ppmid = $siblings->[0]->messageid;
-				$rv .= $pad . $mapping->{$ppmid}->[1];
+				my $ppmid = $siblings->[0]->{id};
+				$rv .= $pad . $mapping->{$ppmid}->[0];
 			}
-			$rv .= $pad . $mapping->{$pmid}->[1];
+			$rv .= $pad . $mapping->{$pmid}->[0];
 		}
 	}
 	my $s_s = nr_to_s($nr_s, 'sibling', 'siblings');
 	my $s_c = nr_to_s($nr_c, 'reply', 'replies');
-	my $this = $map->[1];
-	$this =~ s!\n\z!</b>\n!s;
-	$this =~ s!<a\nhref.*</a> !!s; # no point in duplicating subject
-	$this =~ s!<a\nhref=[^>]+>([^<]+)</a>!$1!s; # no point linking to self
-	$rv .= "<b>@ $this";
-	my $node = $map->[2];
-	if (my $child = $node->child) {
-		my $cmid = $child->messageid;
-		$rv .= $pad . $mapping->{$cmid}->[1];
+	$attr =~ s!\n\z!</b>\n!s;
+	$attr =~ s!<a\nhref.*</a> !!s; # no point in duplicating subject
+	$attr =~ s!<a\nhref=[^>]+>([^<]+)</a>!$1!s; # no point linking to self
+	$rv .= "<b>@ $attr";
+	if ($nr_c) {
+		my $cmid = $children->[0]->{id};
+		$rv .= $pad . $mapping->{$cmid}->[0];
 		if ($nr_c > 2) {
 			my $s = ($nr_c - 1). ' more replies';
 			$rv .= pad_link($cmid, $level + 1, $s);
-		} elsif (my $cn = $child->next) {
-			$rv .= $pad . $mapping->{$cn->messageid}->[1];
+		} elsif (my $cn = $children->[1]) {
+			$rv .= $pad . $mapping->{$cn->{id}}->[0];
 		}
 	}
-	if (my $next = $node->next) {
-		my $nmid = $next->messageid;
-		$rv .= $pad . $mapping->{$nmid}->[1];
+
+	my $next = $siblings->[$idx+1] if $siblings && $idx >= 0;
+	if ($next) {
+		my $nmid = $next->{id};
+		$rv .= $pad . $mapping->{$nmid}->[0];
 		my $nnext = $nr_s - $idx;
 		if ($nnext > 2) {
 			my $s = ($nnext - 1).' subsequent siblings';
 			$rv .= pad_link($nmid, $level, $s);
-		} elsif (my $nn = $next->next) {
-			$rv .= $pad . $mapping->{$nn->messageid}->[1];
+		} elsif (my $nn = $siblings->[$idx + 2]) {
+			$rv .= $pad . $mapping->{$nn->{id}}->[0];
 		}
 	}
 	$rv .= $pad ."<a\nhref=#r$id>$s_s, $s_c; $ctx->{s_nr}</a>\n";
 }
 
 sub walk_thread {
-	my ($th, $ctx, $cb) = @_;
-	my @q = map { (0, $_) } $th->rootset;
+	my ($rootset, $ctx, $cb) = @_;
+	my @q = map { (0, $_, -1) } @$rootset;
 	while (@q) {
-		my $level = shift @q;
-		my $node = shift @q or next;
-		$cb->($ctx, $level, $node);
-		unshift @q, $level+1, $node->child, $level, $node->next;
+		my ($level, $node, $i) = splice(@q, 0, 3);
+		defined $node or next;
+		$cb->($ctx, $level, $node, $i);
+		++$level;
+		$i = 0;
+		unshift @q, map { ($level, $_, $i++) } @{$node->{children}};
 	}
 }
 
 sub pre_thread  {
-	my ($ctx, $level, $node) = @_;
-	my $mapping = $ctx->{mapping};
-	my $idx = -1;
-	if (my $parent = $node->parent) {
-		my $m = $mapping->{$parent->messageid}->[0];
-		$idx = scalar @$m;
-		push @$m, $node;
-	}
-	$mapping->{$node->messageid} = [ [], '', $node, $idx, $level ];
+	my ($ctx, $level, $node, $idx) = @_;
+	$ctx->{mapping}->{$node->{id}} = [ '', $node, $idx, $level ];
 	skel_dump($ctx, $level, $node);
 }
 
@@ -282,20 +288,21 @@ sub thread_index_entry {
 }
 
 sub stream_thread ($$) {
-	my ($th, $ctx) = @_;
+	my ($rootset, $ctx) = @_;
 	my $inbox = $ctx->{-inbox};
 	my $mime;
-	my @q = map { (0, $_) } $th->rootset;
+	my @q = map { (0, $_) } @$rootset;
 	my $level;
 	while (@q) {
 		$level = shift @q;
 		my $node = shift @q or next;
-		unshift @q, $level+1, $node->child, $level, $node->next;
-		$mime = $inbox->msg_by_mid($node->messageid) and last;
+		my $cl = $level + 1;
+		unshift @q, map { ($cl, $_) } @{$node->{children}};
+		$mime = $inbox->msg_by_smsg($node->{smsg}) and last;
 	}
 	return missing_thread($ctx) unless $mime;
 
-	$mime = Email::MIME->new($mime);
+	$mime = PublicInbox::MIME->new($mime);
 	$ctx->{-title_html} = ascii_html($mime->header('Subject'));
 	$ctx->{-html_tip} = thread_index_entry($ctx, $level, $mime);
 	PublicInbox::WwwStream->response($ctx, 200, sub {
@@ -303,13 +310,14 @@ sub stream_thread ($$) {
 		while (@q) {
 			$level = shift @q;
 			my $node = shift @q or next;
-			unshift @q, $level+1, $node->child, $level, $node->next;
-			my $mid = $node->messageid;
-			if ($mime = $inbox->msg_by_mid($mid)) {
-				$mime = Email::MIME->new($mime);
+			my $cl = $level + 1;
+			unshift @q, map { ($cl, $_) } @{$node->{children}};
+			my $mid = $node->{id};
+			if ($mime = $inbox->msg_by_smsg($node->{smsg})) {
+				$mime = PublicInbox::MIME->new($mime);
 				return thread_index_entry($ctx, $level, $mime);
 			} else {
-				return ghost_index_entry($ctx, $level, $mid);
+				return ghost_index_entry($ctx, $level, $node);
 			}
 		}
 		my $ret = join('', thread_adj_level($ctx, 0));
@@ -322,8 +330,9 @@ sub stream_thread ($$) {
 sub thread_html {
 	my ($ctx) = @_;
 	my $mid = $ctx->{mid};
-	my $sres = $ctx->{srch}->get_thread($mid, { asc => 1 });
-	my $msgs = load_results($sres);
+	my $srch = $ctx->{srch};
+	my $sres = $srch->get_thread($mid);
+	my $msgs = load_results($srch, $sres);
 	my $nr = $sres->{total};
 	return missing_thread($ctx) if $nr == 0;
 	my $skel = '<hr><pre>';
@@ -344,34 +353,33 @@ sub thread_html {
 	$ctx->{mapping} = {};
 	$ctx->{s_nr} = "$nr+ messages in thread";
 
-	my $th = thread_results($msgs);
-	walk_thread($th, $ctx, *pre_thread);
+	my $rootset = thread_results($msgs);
+	walk_thread($rootset, $ctx, *pre_thread);
 	$skel .= '</pre>';
-	return stream_thread($th, $ctx) unless $ctx->{flat};
+	return stream_thread($rootset, $ctx) unless $ctx->{flat};
 
-	# flat display: lazy load the full message from mini_mime:
+	# flat display: lazy load the full message from smsg
 	my $inbox = $ctx->{-inbox};
 	my $mime;
 	while ($mime = shift @$msgs) {
-		$mime = $inbox->msg_by_mid(mid_clean(mid_mime($mime))) and last;
+		$mime = $inbox->msg_by_smsg($mime) and last;
 	}
 	return missing_thread($ctx) unless $mime;
-	$mime = Email::MIME->new($mime);
+	$mime = PublicInbox::MIME->new($mime);
 	$ctx->{-title_html} = ascii_html($mime->header('Subject'));
 	$ctx->{-html_tip} = '<pre>'.index_entry($mime, $ctx, scalar @$msgs);
 	$mime = undef;
 	PublicInbox::WwwStream->response($ctx, 200, sub {
 		return unless $msgs;
 		while ($mime = shift @$msgs) {
-			$mid = mid_clean(mid_mime($mime));
-			$mime = $inbox->msg_by_mid($mid) and last;
+			$mime = $inbox->msg_by_smsg($mime) and last;
 		}
 		if ($mime) {
-			$mime = Email::MIME->new($mime);
+			$mime = PublicInbox::MIME->new($mime);
 			return index_entry($mime, $ctx, scalar @$msgs);
 		}
 		$msgs = undef;
-		'</pre>'.$skel;
+		$skel;
 	});
 }
 
@@ -401,14 +409,16 @@ sub flush_quote {
 	$$s .= qq(<span\nclass="q">) . $rv . '</span>'
 }
 
-sub attach_link ($$$$) {
-	my ($upfx, $ct, $p, $fn) = @_;
+sub attach_link ($$$$;$) {
+	my ($upfx, $ct, $p, $fn, $err) = @_;
 	my ($part, $depth, @idx) = @$p;
 	my $nl = $idx[-1] > 1 ? "\n" : '';
 	my $idx = join('.', @idx);
 	my $size = bytes::length($part->body);
-	$ct ||= 'text/plain';
-	$ct =~ s/;.*//; # no attributes
+
+	# hide attributes normally, unless we want to aid users in
+	# spotting MUA problems:
+	$ct =~ s/;.*// unless $err;
 	$ct = ascii_html($ct);
 	my $desc = $part->header('Content-Description');
 	$desc = $fn unless defined $desc;
@@ -421,58 +431,74 @@ sub attach_link ($$$$) {
 	} else {
 		$sfn = 'a.bin';
 	}
-	my @ret = qq($nl<a\nhref="$upfx$idx-$sfn">[-- Attachment #$idx: );
+	my $ret = qq($nl<a\nhref="$upfx$idx-$sfn">);
+	if ($err) {
+		$ret .=
+"[-- Warning: decoded text below may be mangled --]\n";
+	}
+	$ret .= "[-- Attachment #$idx: ";
 	my $ts = "Type: $ct, Size: $size bytes";
-	push(@ret, ($desc eq '') ? "$ts --]" : "$desc --]\n[-- $ts --]");
-	join('', @ret, "</a>\n");
+	$ret .= ($desc eq '') ? "$ts --]" : "$desc --]\n[-- $ts --]";
+	$ret .= "</a>\n";
 }
 
 sub add_text_body {
 	my ($upfx, $p) = @_; # from msg_iter: [ Email::MIME, depth, @idx ]
-	my ($part, $depth, @idx) = @$p;
-	my $ct = $part->content_type;
+	my ($part, $depth) = @$p; # attachment @idx is unused
+	my $ct = $part->content_type || 'text/plain';
 	my $fn = $part->filename;
 
-	if (defined $ct && $ct =~ m!\btext/x?html\b!i) {
+	if ($ct =~ m!\btext/x?html\b!i) {
 		return attach_link($upfx, $ct, $p, $fn);
 	}
 
 	my $s = eval { $part->body_str };
 
 	# badly-encoded message? tell the world about it!
-	return attach_link($upfx, $ct, $p, $fn) if $@;
+	my $err = $@;
+	if ($err) {
+		if ($ct =~ m!\btext/plain\b!i) {
+			# Try to assume UTF-8 because Alpine seems to
+			# do wacky things and set charset=X-UNKNOWN
+			$part->charset_set('UTF-8');
+			$s = eval { $part->body_str };
+
+			# If forcing charset=UTF-8 failed,
+			# attach_link will warn further down...
+			$s = $part->body if $@;
+		} else {
+			return attach_link($upfx, $ct, $p, $fn);
+		}
+	}
 
 	my @lines = split(/^/m, $s);
 	$s = '';
-	if (defined($fn) || $depth > 0) {
-		$s .= attach_link($upfx, $ct, $p, $fn);
+	if (defined($fn) || $depth > 0 || $err) {
+		$s .= attach_link($upfx, $ct, $p, $fn, $err);
 		$s .= "\n";
 	}
 	my @quot;
 	my $l = PublicInbox::Linkify->new;
-	while (defined(my $cur = shift @lines)) {
+	foreach my $cur (@lines) {
 		if ($cur !~ /^>/) {
 			# show the previously buffered quote inline
 			flush_quote(\$s, $l, \@quot) if @quot;
 
 			# regular line, OK
-			$cur = $l->linkify_1($cur);
-			$cur = ascii_html($cur);
-			$s .= $l->linkify_2($cur);
+			$l->linkify_1($cur);
+			$s .= $l->linkify_2(ascii_html($cur));
 		} else {
 			push @quot, $cur;
 		}
 	}
 
-	my $end = "\n";
-	if (@quot) {
-		$end = '';
+	if (@quot) { # ugh, top posted
 		flush_quote(\$s, $l, \@quot);
+	} elsif ($s =~ /\n\z/s) { # common, last line ends with a newline
+		$s;
+	} else { # some editors don't do newlines...
+		$s .= "\n";
 	}
-	$s =~ s/[ \t]+$//sgm; # kill per-line trailing whitespace
-	$s =~ s/\A\n+//s; # kill leading blank lines
-	$s =~ s/\s+\z//s; # kill all trailing spaces
-	$s .= $end;
 }
 
 sub _msg_html_prepare {
@@ -485,7 +511,7 @@ sub _msg_html_prepare {
 		$ctx->{-upfx} = '../';
 	}
 	my @title;
-	my $mid = $hdr->header_raw('Message-ID');
+	my $mid = mid_clean($hdr->header_raw('Message-ID'));
 	$mid = PublicInbox::Hval->new_msgid($mid);
 	foreach my $h (qw(From To Cc Subject Date)) {
 		my $v = $hdr->header($h);
@@ -549,7 +575,8 @@ sub thread_skel {
 	$ctx->{prev_attr} = '';
 	$ctx->{prev_level} = 0;
 	$ctx->{dst} = $dst;
-	walk_thread(thread_results(load_results($sres)), $ctx, *skel_dump);
+	$sres = load_results($srch, $sres);
+	walk_thread(thread_results($sres), $ctx, *skel_dump);
 	$ctx->{parent_msg} = $parent;
 }
 
@@ -561,7 +588,7 @@ sub _parent_headers {
 	if (defined $irt) {
 		my $v = PublicInbox::Hval->new_msgid($irt);
 		my $html = $v->as_html;
-		my $href = $v->as_href;
+		my $href = $v->{href};
 		$rv .= "In-Reply-To: &lt;";
 		$rv .= "<a\nhref=\"../$href/\">$html</a>&gt;\n";
 	}
@@ -620,7 +647,7 @@ sub mailto_arg_link {
 	$subj = "Re: $subj" unless $subj =~ /\bRe:/i;
 	my $mid = $hdr->header_raw('Message-ID');
 	push @arg, '--in-reply-to='.squote_maybe(mid_clean($mid));
-	my $irt = uri_escape_utf8($mid);
+	my $irt = mid_escape($mid);
 	delete $cc{$to};
 	push @arg, "--to=$to";
 	$to = uri_escape_utf8($to);
@@ -629,7 +656,6 @@ sub mailto_arg_link {
 	push(@arg, map { "--cc=$_" } @cc);
 	my $cc = uri_escape_utf8(join(',', @cc));
 	my $href = "mailto:$to?In-Reply-To=$irt&Cc=${cc}&Subject=$subj";
-	$href =~ s/%20/+/g;
 
 	(\@arg, ascii_html($href));
 }
@@ -650,17 +676,17 @@ sub html_footer {
 		$next = $prev = '    ';
 
 		if (my $n = $ctx->{next_msg}) {
-			$n = PublicInbox::Hval->new_msgid($n)->as_href;
+			$n = PublicInbox::Hval->new_msgid($n)->{href};
 			$next = "<a\nhref=\"$upfx$n/\"\nrel=next>next</a>";
 		}
 		my $u;
 		my $par = $ctx->{parent_msg};
 		if ($par) {
-			$u = PublicInbox::Hval->new_msgid($par)->as_href;
+			$u = PublicInbox::Hval->new_msgid($par)->{href};
 			$u = "$upfx$u/";
 		}
 		if (my $p = $ctx->{prev_msg}) {
-			$prev = PublicInbox::Hval->new_msgid($p)->as_href;
+			$prev = PublicInbox::Hval->new_msgid($p)->{href};
 			if ($p && $par && $p eq $par) {
 				$prev = "<a\nhref=\"$upfx$prev/\"\n" .
 					'rel=prev>prev parent</a>';
@@ -685,7 +711,7 @@ sub html_footer {
 sub linkify_ref_nosrch {
 	my $v = PublicInbox::Hval->new_msgid($_[0]);
 	my $html = $v->as_html;
-	my $href = $v->as_href;
+	my $href = $v->{href};
 	"&lt;<a\nhref=\"../$href/\">$html</a>&gt;";
 }
 
@@ -696,11 +722,9 @@ sub anchor_for {
 
 sub ghost_parent {
 	my ($upfx, $mid) = @_;
-	# 'subject dummy' is used internally by Mail::Thread
-	return '[no common parent]' if ($mid eq 'subject dummy');
 
 	$mid = PublicInbox::Hval->new_msgid($mid);
-	my $href = $mid->as_href;
+	my $href = $mid->{href};
 	my $html = $mid->as_html;
 	qq{[parent not found: &lt;<a\nhref="$upfx$href/">$html</a>&gt;]};
 }
@@ -711,9 +735,9 @@ sub indent_for {
 }
 
 sub load_results {
-	my ($sres) = @_;
-
-	[ map { $_->mini_mime } @{delete $sres->{msgs}} ];
+	my ($srch, $sres) = @_;
+	my $msgs = delete $sres->{msgs};
+	$srch->retry_reopen(sub { [ map { $_->mid; $_ } @$msgs ] });
 }
 
 sub msg_timestamp {
@@ -724,11 +748,8 @@ sub msg_timestamp {
 
 sub thread_results {
 	my ($msgs) = @_;
-	require PublicInbox::Thread;
-	my $th = PublicInbox::Thread->new(@$msgs);
-	$th->thread;
-	$th->order(*sort_ts);
-	$th
+	require PublicInbox::SearchThread;
+	PublicInbox::SearchThread::thread($msgs, *sort_ts);
 }
 
 sub missing_thread {
@@ -745,14 +766,15 @@ sub _msg_date {
 
 sub fmt_ts { POSIX::strftime('%Y-%m-%d %k:%M', gmtime($_[0])) }
 
-sub _skel_header {
-	my ($ctx, $hdr, $level) = @_;
+sub skel_dump {
+	my ($ctx, $level, $node) = @_;
+	my $smsg = $node->{smsg} or return _skel_ghost($ctx, $level, $node);
 
 	my $dst = $ctx->{dst};
 	my $cur = $ctx->{cur};
-	my $mid = mid_clean($hdr->header_raw('Message-ID'));
-	my $f = ascii_html($hdr->header('X-PI-From'));
-	my $d = _msg_date($hdr) . ' ' . indent_for($level) . th_pfx($level);
+	my $mid = $smsg->{mid};
+	my $f = ascii_html($smsg->from_name);
+	my $d = fmt_ts($smsg->{ts}) . ' ' . indent_for($level) . th_pfx($level);
 	my $attr = $f;
 	$ctx->{first_level} ||= $level;
 
@@ -777,7 +799,7 @@ sub _skel_header {
 	# Subject is never undef, this mail was loaded from
 	# our Xapian which would've resulted in '' if it were
 	# really missing (and Filter rejects empty subjects)
-	my $s = $hdr->header('Subject');
+	my $s = $smsg->subject;
 	my $h = $ctx->{srch}->subject_path($s);
 	if ($ctx->{seen}->{$h}) {
 		$s = undef;
@@ -786,7 +808,7 @@ sub _skel_header {
 		$s = PublicInbox::Hval->new($s);
 		$s = $s->as_html;
 	}
-	my $m = PublicInbox::Hval->new_msgid($mid);
+	my $m;
 	my $id = '';
 	my $mapping = $ctx->{mapping};
 	my $end = defined($s) ? "$s</a> $f\n" : "$f</a>\n";
@@ -794,59 +816,44 @@ sub _skel_header {
 		my $map = $mapping->{$mid};
 		$id = id_compress($mid, 1);
 		$m = '#m'.$id;
-		$map->[1] = "$d<a\nhref=\"$m\">$end";
+		$map->[0] = "$d<a\nhref=\"$m\">$end";
 		$id = "\nid=r".$id;
 	} else {
-		$m = $ctx->{-upfx}.$m->as_href.'/';
+		$m = $ctx->{-upfx}.mid_escape($mid).'/';
 	}
 	$$dst .=  $d . "<a\nhref=\"$m\"$id>" . $end;
 }
 
-sub skel_dump {
+sub _skel_ghost {
 	my ($ctx, $level, $node) = @_;
-	if (my $mime = $node->message) {
-		_skel_header($ctx, $mime->header_obj, $level);
+
+	my $mid = $node->{id};
+	my $d = $ctx->{pct} ? '    [irrelevant] ' # search result
+			    : '     [not found] ';
+	$d .= indent_for($level) . th_pfx($level);
+	my $upfx = $ctx->{-upfx};
+	my $m = PublicInbox::Hval->new_msgid($mid);
+	my $href = $upfx . $m->{href} . '/';
+	my $html = $m->as_html;
+
+	my $mapping = $ctx->{mapping};
+	my $map = $mapping->{$mid} if $mapping;
+	if ($map) {
+		my $id = id_compress($mid, 1);
+		$map->[0] = $d . qq{&lt;<a\nhref=#r$id>$html</a>&gt;\n};
+		$d .= qq{&lt;<a\nhref="$href"\nid=r$id>$html</a>&gt;\n};
 	} else {
-		my $mid = $node->messageid;
-		my $dst = $ctx->{dst};
-		my $mapping = $ctx->{mapping};
-		my $map = $mapping->{$mid} if $mapping;
-		if ($mid eq 'subject dummy') {
-			my $ncp = "\t[no common parent]\n";
-			$map->[1] = $ncp if $map;
-			$$dst .= $ncp;
-			return;
-		}
-		my $d = $ctx->{pct} ? '    [irrelevant] ' # search result
-				    : '     [not found] ';
-		$d .= indent_for($level) . th_pfx($level);
-		my $upfx = $ctx->{-upfx};
-		my $m = PublicInbox::Hval->new_msgid($mid);
-		my $href = $upfx . $m->as_href . '/';
-		my $html = $m->as_html;
-
-		if ($map) {
-			my $id = id_compress($mid, 1);
-			$map->[1] = $d . qq{&lt;<a\nhref=#r$id>$html</a>&gt;\n};
-			$d .= qq{&lt;<a\nhref="$href"\nid=r$id>$html</a>&gt;\n};
-		} else {
-			$d .= qq{&lt;<a\nhref="$href">$html</a>&gt;\n};
-		}
-		$$dst .= $d;
+		$d .= qq{&lt;<a\nhref="$href">$html</a>&gt;\n};
 	}
+	my $dst = $ctx->{dst};
+	$$dst .= $d;
 }
 
 sub sort_ts {
-	sort {
-		(eval { $a->topmost->message->header('X-PI-TS') } || 0) <=>
-		(eval { $b->topmost->message->header('X-PI-TS') } || 0)
-	} @_;
-}
-
-sub _tryload_ghost ($$) {
-	my ($srch, $mid) = @_;
-	my $smsg = $srch->lookup_mail($mid) or return;
-	$smsg->mini_mime;
+	[ sort {
+		(eval { $a->topmost->{smsg}->ts } || 0) <=>
+		(eval { $b->topmost->{smsg}->ts } || 0)
+	} @{$_[0]} ];
 }
 
 # accumulate recent topics if search is supported
@@ -854,15 +861,14 @@ sub _tryload_ghost ($$) {
 sub acc_topic {
 	my ($ctx, $level, $node) = @_;
 	my $srch = $ctx->{srch};
-	my $mid = $node->messageid;
-	my $x = $node->message || _tryload_ghost($srch, $mid);
+	my $mid = $node->{id};
+	my $x = $node->{smsg} || $srch->lookup_mail($mid);
 	my ($subj, $ts);
 	my $topic;
 	if ($x) {
-		$x = $x->header_obj;
-		$subj = $x->header('Subject') || '';
+		$subj = $x->subject;
 		$subj = $srch->subject_normalized($subj);
-		$ts = $x->header('X-PI-TS');
+		$ts = $x->ts;
 		if ($level == 0) {
 			$topic = [ $ts, 1, { $subj => $mid }, $subj ];
 			$ctx->{-cur_topic} = $topic;
@@ -904,7 +910,7 @@ sub dump_topics {
 		@$topic = ();
 		next unless defined $top;  # ghost topic
 		my $mid = delete $seen->{$top};
-		my $href = PublicInbox::Hval->new_msgid($mid)->as_href;
+		my $href = mid_escape($mid);
 		$top = PublicInbox::Hval->new($top)->as_html;
 		$ts = fmt_ts($ts);
 
@@ -928,7 +934,7 @@ sub dump_topics {
 			my $sub = $ex[$i + 1];
 			$mid = delete $seen->{$sub};
 			$sub = PublicInbox::Hval->new($sub)->as_html;
-			$href = PublicInbox::Hval->new_msgid($mid)->as_href;
+			$href = mid_escape($mid);
 			$s .= indent_for($level) . TCHILD;
 			$s .= "<a\nhref=\"$href/T/#u\">$sub</a>\n";
 		}
@@ -968,10 +974,11 @@ sub index_topics {
 	my $opts = { offset => $off, limit => 200 };
 
 	$ctx->{order} = [];
-	my $sres = $ctx->{srch}->query('', $opts);
+	my $srch = $ctx->{srch};
+	my $sres = $srch->query('', $opts);
 	my $nr = scalar @{$sres->{msgs}};
 	if ($nr) {
-		$sres = load_results($sres);
+		$sres = load_results($srch, $sres);
 		walk_thread(thread_results($sres), $ctx, *acc_topic);
 	}
 	$ctx->{-next_o} = $off+ $nr;
@@ -1004,9 +1011,10 @@ sub thread_adj_level {
 }
 
 sub ghost_index_entry {
-	my ($ctx, $level, $mid) = @_;
+	my ($ctx, $level, $node) = @_;
 	my ($beg, $end) = thread_adj_level($ctx,  $level);
-	$beg . '<pre>'. ghost_parent($ctx->{-upfx}, $mid) . '</pre>' . $end;
+	$beg . '<pre>'. ghost_parent($ctx->{-upfx}, $node->{id})
+		. '</pre>' . $end;
 }
 
 1;