+ $s . "</a></b>\n";
+ $$res .= "$pfx - by $f @ $date UTC [$pct%]\n\n";
+ }
+ $$res .= search_nav_bot($mset, $q);
+ *noop;
+}
+
+# shorten "/full/path/to/Foo/Bar.pm" to "Foo/Bar.pm" so error
+# messages don't reveal FS layout info in case people use non-standard
+# installation paths
+sub path2inc ($) {
+ my $full = $_[0];
+ if (my $short = $rmap_inc{$full}) {
+ return $short;
+ } elsif (!scalar(keys %rmap_inc) && -e $full) {
+ %rmap_inc = map {; "$INC{$_}" => $_ } keys %INC;
+ # fall back to basename as last resort
+ $rmap_inc{$full} // (split('/', $full))[-1];
+ } else {
+ $full;
+ }
+}
+
+sub err_txt {
+ my ($ctx, $err) = @_;
+ my $u = $ctx->{-inbox}->base_url($ctx->{env}) . '_/text/help/';
+ $err =~ s/^\s*Exception:\s*//; # bad word to show users :P
+ $err =~ s!(\S+)!path2inc($1)!sge;
+ $err = ascii_html($err);
+ "\nBad query: <b>$err</b>\n" .
+ qq{See <a\nhref="$u">$u</a> for help on using search};
+}
+
+sub search_nav_top {
+ my ($mset, $q, $ctx) = @_;
+ my $m = $q->qs_html(x => 'm', r => undef);
+ my $rv = qq{<form\naction="?$m"\nmethod="post"><pre>};
+ my $initial_q = $ctx->{-uxs_retried};
+ if (defined $initial_q) {
+ my $rewritten = $q->{'q'};
+ utf8::decode($initial_q);
+ utf8::decode($rewritten);
+ $initial_q = ascii_html($initial_q);
+ $rewritten = ascii_html($rewritten);
+ $rv .= " Warning: Initial query:\n <b>$initial_q</b>\n";
+ $rv .= " returned no results, used:\n";
+ $rv .= " <b>$rewritten</b>\n instead\n\n";
+ }
+
+ $rv .= 'Search results ordered by [';
+ if ($q->{r}) {
+ my $d = $q->qs_html(r => 0);
+ $rv .= qq{<a\nhref="?$d">date</a>|<b>relevance</b>};
+ } else {
+ my $d = $q->qs_html(r => 1);
+ $rv .= qq{<b>date</b>|<a\nhref="?$d">relevance</a>};
+ }
+
+ $rv .= '] view[';
+
+ my $x = $q->{x};
+ if ($x eq '') {
+ my $t = $q->qs_html(x => 't');
+ $rv .= qq{<b>summary</b>|<a\nhref="?$t">nested</a>}
+ } elsif ($q->{x} eq 't') {
+ my $s = $q->qs_html(x => '');
+ $rv .= qq{<a\nhref="?$s">summary</a>|<b>nested</b>};
+ }
+ my $A = $q->qs_html(x => 'A', r => undef);
+ $rv .= qq{|<a\nhref="?$A">Atom feed</a>]};
+ $rv .= qq{\n\t\t\t\t\t\tdownload: };
+ $rv .= qq{<input\ntype=submit\nvalue="mbox.gz"/></pre></form><pre>};
+}
+
+sub search_nav_bot {
+ my ($mset, $q) = @_;
+ my $total = $mset->get_matches_estimated;
+ my $l = $q->{l};
+ my $rv = '</pre><hr><pre id=t>';
+ my $o = $q->{o};
+ my $off = $o < 0 ? -($o + 1) : $o;
+ my $end = $off + $mset->size;
+ my $beg = $off + 1;
+
+ if ($beg <= $end) {
+ $rv .= "Results $beg-$end of $total";
+ $rv .= ' (estimated)' if $end != $total;
+ } else {
+ $rv .= "No more results, only $total";
+ }
+ my ($next, $join, $prev);
+
+ if ($o >= 0) { # sort descending
+ my $n = $o + $l;
+ if ($n < $total) {
+ $next = $q->qs_html(o => $n, l => $l);
+ }
+ if ($o > 0) {
+ $join = $n < $total ? '/' : ' ';
+ my $p = $o - $l;
+ $prev = $q->qs_html(o => ($p > 0 ? $p : 0));
+ }
+ } else { # o < 0, sort ascending
+ my $n = $o - $l;
+
+ if (-$n < $total) {
+ $next = $q->qs_html(o => $n, l => $l);
+ }
+ if ($o < -1) {
+ $join = -$n < $total ? '/' : ' ';
+ my $p = $o + $l;
+ $prev = $q->qs_html(o => ($p < 0 ? $p : 0));
+ }
+ }
+
+ $rv .= qq{ <a\nhref="?$next"\nrel=next>next</a>} if $next;
+ $rv .= $join if $join;
+ $rv .= qq{<a\nhref="?$prev"\nrel=prev>prev</a>} if $prev;
+
+ my $rev = $q->qs_html(o => $o < 0 ? 0 : -1);
+ $rv .= qq{ | <a\nhref="?$rev">reverse results</a></pre>};
+}
+
+sub sort_relevance {
+ my ($pct) = @_;
+ sub {
+ [ sort { (eval { $pct->{$b->topmost->{id}} } || 0)
+ <=>
+ (eval { $pct->{$a->topmost->{id}} } || 0)
+ } @{$_[0]} ] };
+}
+
+sub mset_thread {
+ my ($ctx, $mset, $q) = @_;
+ my %pct;
+ my $ibx = $ctx->{-inbox};
+ my $msgs = $ibx->search->retry_reopen(sub { [ map {
+ my $i = $_;
+ my $smsg = PublicInbox::SearchMsg->load_doc($i->get_document);
+ $pct{$smsg->mid} = $i->get_percent;
+ $smsg;
+ } ($mset->items) ]});
+ my $r = $q->{r};
+ my $rootset = PublicInbox::SearchThread::thread($msgs,
+ $r ? sort_relevance(\%pct) : *PublicInbox::View::sort_ds,
+ $ctx);
+ my $skel = search_nav_bot($mset, $q). "<pre>";
+ $ctx->{-upfx} = '';
+ $ctx->{anchor_idx} = 1;
+ $ctx->{cur_level} = 0;
+ $ctx->{dst} = \$skel;
+ $ctx->{mapping} = {};
+ $ctx->{pct} = \%pct;
+ $ctx->{prev_attr} = '';
+ $ctx->{prev_level} = 0;
+ $ctx->{s_nr} = scalar(@$msgs).'+ results';
+
+ # reduce hash lookups in skel_dump
+ $ctx->{-obfuscate} = $ctx->{-inbox}->{obfuscate};
+ PublicInbox::View::walk_thread($rootset, $ctx,
+ *PublicInbox::View::pre_thread);
+
+ @$msgs = reverse @$msgs if $r;
+ sub {
+ return unless $msgs;
+ my $smsg;
+ while (my $m = pop @$msgs) {
+ $smsg = $ibx->smsg_mime($m) and last;
+ }
+ if ($smsg) {
+ return PublicInbox::View::index_entry($smsg, $ctx,
+ scalar @$msgs);
+ }
+ $msgs = undef;
+ $skel .= "\n</pre>";
+ };
+}
+
+sub ctx_prepare {
+ my ($q, $ctx) = @_;
+ my $qh = $q->{'q'};
+ utf8::decode($qh);
+ $qh = ascii_html($qh);
+ $ctx->{-q_value_html} = $qh;
+ $ctx->{-atom} = '?'.$q->qs_html(x => 'A', r => undef);
+ $ctx->{-title_html} = "$qh - search results";
+ my $extra = '';
+ $extra .= qq{<input\ntype=hidden\nname=r />} if $q->{r};
+ if (my $x = $q->{x}) {
+ $x = ascii_html($x);
+ $extra .= qq{<input\ntype=hidden\nname=x\nvalue="$x" />};
+ }
+ $ctx->{-extra_form_html} = $extra;
+}
+
+sub adump {
+ my ($cb, $mset, $q, $ctx) = @_;
+ my $ibx = $ctx->{-inbox};
+ my @items = $mset->items;
+ $ctx->{search_query} = $q;
+ my $srch = $ibx->search;
+ PublicInbox::WwwAtomStream->response($ctx, 200, sub {
+ while (my $x = shift @items) {
+ $x = load_doc_retry($srch, $x);
+ $x = $ibx->smsg_mime($x) and return $x;
+ }
+ return undef;
+ });
+}
+
+package PublicInbox::SearchQuery;
+use strict;
+use warnings;
+use URI::Escape qw(uri_escape);
+use PublicInbox::Hval;
+use PublicInbox::MID qw(MID_ESC);
+
+sub new {
+ my ($class, $qp) = @_;
+
+ my $r = $qp->{r};
+ my ($l) = (($qp->{l} || '') =~ /([0-9]+)/);
+ $l = $LIM if !$l || $l > $LIM;
+ bless {
+ q => $qp->{'q'},
+ x => $qp->{x} || '',
+ o => (($qp->{o} || '0') =~ /(-?[0-9]+)/),
+ l => $l,
+ r => (defined $r && $r ne '0'),
+ }, $class;
+}
+
+sub qs_html {
+ my ($self, %over) = @_;
+
+ if (keys %over) {
+ my $tmp = bless { %$self }, ref($self);
+ foreach my $k (keys %over) {
+ $tmp->{$k} = $over{$k};
+ }
+ $self = $tmp;
+ }
+
+ my $q = uri_escape($self->{'q'}, MID_ESC);
+ $q =~ s/%20/+/g; # improve URL readability
+ my $qs = "q=$q";
+
+ if (my $o = $self->{o}) { # ignore o == 0
+ $qs .= "&o=$o";
+ }
+ if (my $l = $self->{l}) {
+ $qs .= "&l=$l" unless $l == $LIM;
+ }
+ if (my $r = $self->{r}) {
+ $qs .= "&r";
+ }
+ if (my $x = $self->{x}) {
+ $qs .= "&x=$x" if ($x eq 't' || $x eq 'A' || $x eq 'm');