1 # Copyright (C) 2014-2015 all contributors <meta@public-inbox.org>
2 # License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
4 # Used for displaying the HTML web interface.
5 # See Documentation/design_www.txt for this.
6 package PublicInbox::View;
9 use URI::Escape qw/uri_escape_utf8/;
10 use Date::Parse qw/str2time/;
11 use PublicInbox::Hval qw/ascii_html/;
12 use PublicInbox::Linkify;
13 use PublicInbox::MID qw/mid_clean id_compress mid_mime/;
14 use PublicInbox::MsgIter;
15 use PublicInbox::Address;
16 use PublicInbox::WwwStream;
19 use constant INDENT => ' ';
20 use constant TCHILD => '` ';
21 sub th_pfx ($) { $_[0] == 0 ? '' : TCHILD };
23 # public functions: (unstable)
25 my ($ctx, $mime) = @_;
26 my $hdr = $mime->header_obj;
27 my $tip = _msg_html_prepare($hdr, $ctx);
28 PublicInbox::WwwStream->response($ctx, 200, sub {
31 $tip . multipart_text_as_html($mime, '') . '</pre><hr>'
33 # fake an EOF if generating the footer fails;
34 # we want to at least show the message if something
37 '<pre>' . html_footer($hdr, 1, $ctx) .
38 '</pre>' . msg_reply($ctx, $hdr)
46 # /$INBOX/$MESSAGE_ID/#R
50 'https://kernel.org/pub/software/scm/git/docs/git-send-email.html';
52 'https://en.wikipedia.org/wiki/Posting_style#Interleaved_style';
55 if (my $url = $ctx->{-inbox}->{infourl}) {
56 $url = PublicInbox::Hval::prurl($ctx->{env}, $url);
57 $info = qq(\n List information: <a\nhref="$url">$url</a>\n);
60 my ($arg, $link) = mailto_arg_link($hdr);
61 push @$arg, '/path/to/YOUR_REPLY';
62 $arg = join(" \\\n ", '', @$arg);
65 id=R>You may reply publically to <a
66 href=#t>this message</a> via
67 plain-text email using any one of the following methods:
69 * Save the following mbox file, import it into your mail client,
70 and reply-to-all from there: <a
73 Avoid top-posting and favor interleaved quoting:
75 href="$p_url">$p_url</a>
77 * Reply to all the recipients using the <b>--to</b>, <b>--cc</b>,
78 and <b>--in-reply-to</b> switches of git-send-email(1):
83 href="$se_url">$se_url</a>
85 * If your mail client supports setting the <b>In-Reply-To</b> header
86 via mailto: links, try the <a
87 href="$link">mailto: link</a></pre>
93 my $irt = $hdr->header_raw('In-Reply-To');
95 return mid_clean($irt) if (defined $irt);
97 my $refs = $hdr->header_raw('References');
98 if ($refs && $refs =~ /<([^>]+)>\s*\z/s) {
104 sub _hdr_names ($$) {
105 my ($hdr, $field) = @_;
106 my $val = $hdr->header($field) or return '';
107 ascii_html(join(', ', PublicInbox::Address::names($val)));
111 my ($nr, $singular, $plural) = @_;
112 return "0 $plural" if $nr == 0;
113 $nr == 1 ? "$nr $singular" : "$nr $plural";
116 # this is already inside a <pre>
118 my ($mime, $ctx, $more) = @_;
119 my $srch = $ctx->{srch};
120 my $hdr = $mime->header_obj;
121 my $subj = $hdr->header('Subject');
123 my $mid_raw = mid_clean(mid_mime($mime));
124 my $id = id_compress($mid_raw, 1);
126 my $mid = PublicInbox::Hval->new_msgid($mid_raw);
128 my $root_anchor = $ctx->{root_anchor} || '';
129 my $irt = in_reply_to($hdr);
131 my $rv = "<a\nhref=#e$id\nid=m$id>*</a> ";
132 $subj = '<b>'.ascii_html($subj).'</b>';
133 $subj = "<u\nid=u>$subj</u>" if $root_anchor eq $id_m;
135 $rv .= _th_index_lite($mid_raw, $irt, $id, $ctx);
137 foreach my $f (qw(To Cc)) {
138 my $dst = _hdr_names($hdr, $f);
139 push @tocc, "$f: $dst" if $dst ne '';
141 $rv .= "From: "._hdr_names($hdr, 'From').' @ '._msg_date($hdr)." UTC";
142 my $upfx = $ctx->{-upfx};
143 my $mhref = $upfx . $mid->as_href . '/';
144 $rv .= qq{ (<a\nhref="$mhref">permalink</a> / };
145 $rv .= qq{<a\nhref="${mhref}raw">raw</a>)\n};
146 $rv .= ' '.join('; +', @tocc) . "\n" if @tocc;
148 my $mapping = $ctx->{mapping};
149 if (!$mapping && $irt) {
150 my $mirt = PublicInbox::Hval->new_msgid($irt);
151 my $href = $upfx . $mirt->as_href . '/';
152 my $html = $mirt->as_html;
153 $rv .= qq(In-Reply-To: <<a\nhref="$href">$html</a>>\n)
157 # scan through all parts, looking for displayable text
158 msg_iter($mime, sub { $rv .= add_text_body($mhref, $_[0]) });
161 $rv .= "\n<a\nhref=#$id_m\nid=e$id>^</a> ".
162 "<a\nhref=\"$mhref\">permalink</a>" .
163 " <a\nhref=\"${mhref}raw\">raw</a>" .
164 " <a\nhref=\"${mhref}#R\">reply</a>";
165 if (my $pct = $ctx->{pct}) { # used by SearchView.pm
166 $rv .= "\t[relevance $pct->{$mid_raw}%]";
168 my $threaded = 'threaded';
172 $flat = "<b>$flat</b>";
174 $threaded = "<b>$threaded</b>";
176 $rv .= "\t[<a\nhref=\"${mhref}T/#u\">$flat</a>";
177 $rv .= "|<a\nhref=\"${mhref}t/#u\">$threaded</a>]";
178 $rv .= " <a\nhref=#r$id>$ctx->{s_nr}</a>";
181 $rv .= $more ? "\n\n" : "\n";
184 sub pad_link ($$;$) {
185 my ($mid, $level, $s) = @_;
187 my $id = id_compress($mid, 1);
188 (' 'x19).indent_for($level).th_pfx($level)."<a\nhref=#r$id>($s)</a>\n";
192 my ($mid_raw, $irt, $id, $ctx) = @_;
194 my $mapping = $ctx->{mapping} or return $rv;
196 # map = [children, attr, node, idx, level]
197 my $map = $mapping->{$mid_raw};
198 my $nr_c = scalar @{$map->[0]};
200 my $level = $map->[4];
203 my $irt_map = $mapping->{$irt};
204 my $siblings = $irt_map->[0];
205 $nr_s = scalar(@$siblings) - 1;
206 $rv .= $pad . $irt_map->[1];
208 my $prev = $siblings->[$idx - 1];
209 my $pmid = $prev->messageid;
211 my $s = ($idx - 1). ' preceding siblings ...';
212 $rv .= pad_link($pmid, $level, $s);
213 } elsif ($idx == 2) {
214 my $ppmid = $siblings->[0]->messageid;
215 $rv .= $pad . $mapping->{$ppmid}->[1];
217 $rv .= $pad . $mapping->{$pmid}->[1];
220 my $s_s = nr_to_s($nr_s, 'sibling', 'siblings');
221 my $s_c = nr_to_s($nr_c, 'reply', 'replies');
222 my $this = $map->[1];
223 $this =~ s!\n\z!</b>\n!s;
224 $this =~ s!<a\nhref.*</a> !!s; # no point in duplicating subject
225 $this =~ s!<a\nhref=[^>]+>([^<]+)</a>!$1!s; # no point linking to self
227 my $node = $map->[2];
228 if (my $child = $node->child) {
229 my $cmid = $child->messageid;
230 $rv .= $pad . $mapping->{$cmid}->[1];
232 my $s = ($nr_c - 1). ' more replies';
233 $rv .= pad_link($cmid, $level + 1, $s);
234 } elsif (my $cn = $child->next) {
235 $rv .= $pad . $mapping->{$cn->messageid}->[1];
238 if (my $next = $node->next) {
239 my $nmid = $next->messageid;
240 $rv .= $pad . $mapping->{$nmid}->[1];
241 my $nnext = $nr_s - $idx;
243 my $s = ($nnext - 1).' subsequent siblings';
244 $rv .= pad_link($nmid, $level, $s);
245 } elsif (my $nn = $next->next) {
246 $rv .= $pad . $mapping->{$nn->messageid}->[1];
249 $rv .= $pad ."<a\nhref=#r$id>$s_s, $s_c; $ctx->{s_nr}</a>\n";
253 my ($th, $ctx, $cb) = @_;
254 my @q = map { (0, $_) } $th->rootset;
256 my $level = shift @q;
257 my $node = shift @q or next;
258 $cb->($ctx, $level, $node);
259 unshift @q, $level+1, $node->child, $level, $node->next;
264 my ($ctx, $level, $node) = @_;
265 my $mapping = $ctx->{mapping};
267 if (my $parent = $node->parent) {
268 my $m = $mapping->{$parent->messageid}->[0];
272 $mapping->{$node->messageid} = [ [], '', $node, $idx, $level ];
273 skel_dump($ctx, $level, $node);
276 sub thread_index_entry {
277 my ($ctx, $level, $mime) = @_;
278 my ($beg, $end) = thread_adj_level($ctx, $level);
279 $beg . '<pre>' . index_entry($mime, $ctx, 0) . '</pre>' . $end;
282 sub stream_thread ($$) {
284 my $inbox = $ctx->{-inbox};
286 my @q = map { (0, $_) } $th->rootset;
290 my $node = shift @q or next;
291 unshift @q, $level+1, $node->child, $level, $node->next;
292 $mime = $inbox->msg_by_mid($node->messageid) and last;
294 return missing_thread($ctx) unless $mime;
296 $mime = Email::MIME->new($mime);
297 $ctx->{-title_html} = ascii_html($mime->header('Subject'));
298 $ctx->{-html_tip} = thread_index_entry($ctx, $level, $mime);
299 PublicInbox::WwwStream->response($ctx, 200, sub {
303 my $node = shift @q or next;
304 unshift @q, $level+1, $node->child, $level, $node->next;
305 my $mid = $node->messageid;
306 if ($mime = $inbox->msg_by_mid($mid)) {
307 $mime = Email::MIME->new($mime);
308 return thread_index_entry($ctx, $level, $mime);
310 return ghost_index_entry($ctx, $level, $mid);
313 my $ret = join('', thread_adj_level($ctx, 0));
314 $ret .= ${$ctx->{dst}}; # skel
322 my $mid = $ctx->{mid};
323 my $sres = $ctx->{srch}->get_thread($mid, { asc => 1 });
324 my $msgs = load_results($sres);
325 my $nr = $sres->{total};
326 return missing_thread($ctx) if $nr == 0;
327 my $skel = '<hr><pre>';
328 $skel .= $nr == 1 ? 'only message in thread' : 'end of thread';
329 $skel .= ", back to <a\nhref=\"../../\">index</a>";
330 $skel .= "\n<a\nid=t>$nr+ messages in thread:</a> (download: ";
331 $skel .= "<a\nhref=\"../t.mbox.gz\">mbox.gz</a>";
332 $skel .= " / follow: <a\nhref=\"../t.atom\">Atom feed</a>)\n";
333 $ctx->{-upfx} = '../../';
334 $ctx->{cur_level} = 0;
335 $ctx->{dst} = \$skel;
336 $ctx->{prev_attr} = '';
337 $ctx->{prev_level} = 0;
338 $ctx->{root_anchor} = anchor_for($mid);
340 $ctx->{mapping} = {};
341 $ctx->{s_nr} = "$nr+ messages in thread";
343 my $th = thread_results($msgs);
344 walk_thread($th, $ctx, *pre_thread);
346 return stream_thread($th, $ctx) unless $ctx->{flat};
348 # flat display: lazy load the full message from mini_mime:
349 my $inbox = $ctx->{-inbox};
351 while ($mime = shift @$msgs) {
352 $mime = $inbox->msg_by_mid(mid_clean(mid_mime($mime))) and last;
354 return missing_thread($ctx) unless $mime;
355 $mime = Email::MIME->new($mime);
356 $ctx->{-title_html} = ascii_html($mime->header('Subject'));
357 $ctx->{-html_tip} = '<pre>'.index_entry($mime, $ctx, scalar @$msgs);
359 PublicInbox::WwwStream->response($ctx, 200, sub {
361 while ($mime = shift @$msgs) {
362 $mid = mid_clean(mid_mime($mime));
363 $mime = $inbox->msg_by_mid($mid) and last;
366 $mime = Email::MIME->new($mime);
367 return index_entry($mime, $ctx, scalar @$msgs);
374 sub multipart_text_as_html {
375 my ($mime, $upfx) = @_;
378 # scan through all parts, looking for displayable text
379 msg_iter($mime, sub {
381 $rv .= add_text_body($upfx, $p);
387 my ($s, $l, $quot) = @_;
389 # show everything in the full version with anchor from
390 # short version (see above)
391 my $rv = $l->linkify_1(join('', @$quot));
394 # we use a <span> here to allow users to specify their own
395 # color for quoted text
396 $rv = $l->linkify_2(ascii_html($rv));
397 $$s .= qq(<span\nclass="q">) . $rv . '</span>'
400 sub attach_link ($$$$) {
401 my ($upfx, $ct, $p, $fn) = @_;
402 my ($part, $depth, @idx) = @$p;
403 my $nl = $idx[-1] > 1 ? "\n" : '';
404 my $idx = join('.', @idx);
405 my $size = bytes::length($part->body);
406 $ct ||= 'text/plain';
407 $ct =~ s/;.*//; # no attributes
408 $ct = ascii_html($ct);
409 my $desc = $part->header('Content-Description');
410 $desc = $fn unless defined $desc;
411 $desc = '' unless defined $desc;
413 if (defined $fn && $fn =~ /\A[[:alnum:]][\w\.-]+[[:alnum:]]\z/) {
415 } elsif ($ct eq 'text/plain') {
420 my @ret = qq($nl<a\nhref="$upfx$idx-$sfn">[-- Attachment #$idx: );
421 my $ts = "Type: $ct, Size: $size bytes";
422 push(@ret, ($desc eq '') ? "$ts --]" : "$desc --]\n[-- $ts --]");
423 join('', @ret, "</a>\n");
427 my ($upfx, $p) = @_; # from msg_iter: [ Email::MIME, depth, @idx ]
428 my ($part, $depth, @idx) = @$p;
429 my $ct = $part->content_type;
430 my $fn = $part->filename;
432 if (defined $ct && $ct =~ m!\btext/x?html\b!i) {
433 return attach_link($upfx, $ct, $p, $fn);
436 my $s = eval { $part->body_str };
438 # badly-encoded message? tell the world about it!
439 return attach_link($upfx, $ct, $p, $fn) if $@;
441 my @lines = split(/^/m, $s);
443 if (defined($fn) || $depth > 0) {
444 $s .= attach_link($upfx, $ct, $p, $fn);
448 my $l = PublicInbox::Linkify->new;
449 while (defined(my $cur = shift @lines)) {
451 # show the previously buffered quote inline
452 flush_quote(\$s, $l, \@quot) if @quot;
455 $cur = $l->linkify_1($cur);
456 $cur = ascii_html($cur);
457 $s .= $l->linkify_2($cur);
466 flush_quote(\$s, $l, \@quot);
468 $s =~ s/[ \t]+$//sgm; # kill per-line trailing whitespace
469 $s =~ s/\A\n+//s; # kill leading blank lines
470 $s =~ s/\s+\z//s; # kill all trailing spaces
474 sub _msg_html_prepare {
475 my ($hdr, $ctx) = @_;
476 my $srch = $ctx->{srch} if $ctx;
478 my $rv = "<pre\nid=b>"; # anchor for body start
481 $ctx->{-upfx} = '../';
484 my $mid = $hdr->header_raw('Message-ID');
485 $mid = PublicInbox::Hval->new_msgid($mid);
486 foreach my $h (qw(From To Cc Subject Date)) {
487 my $v = $hdr->header($h);
488 defined($v) && ($v ne '') or next;
489 $v = PublicInbox::Hval->new($v);
492 my @n = PublicInbox::Address::names($v->raw);
493 $title[1] = ascii_html(join(', ', @n));
494 } elsif ($h eq 'Subject') {
495 $title[0] = $v->as_html;
497 $rv .= qq($h: <a\nhref="#r"\nid=t>);
498 $rv .= $v->as_html . "</a>\n";
503 $v =~ s/(\@[^,]+,) /$1\n\t/g if ($h eq 'Cc' || $h eq 'To');
507 $title[0] ||= '(no subject)';
508 $ctx->{-title_html} = join(' - ', @title);
509 $rv .= 'Message-ID: <' . $mid->as_html . '> ';
510 $rv .= "(<a\nhref=\"raw\">raw</a>)\n";
511 $rv .= _parent_headers($hdr, $srch);
516 my ($dst, $ctx, $hdr, $tpfx) = @_;
517 my $srch = $ctx->{srch};
518 my $mid = mid_clean($hdr->header_raw('Message-ID'));
519 my $sres = $srch->get_thread($mid);
520 my $nr = $sres->{total};
521 my $expand = qq(<a\nhref="${tpfx}T/#u">expand</a> ) .
522 qq(/ <a\nhref="${tpfx}t.mbox.gz">mbox.gz</a> ) .
523 qq(/ <a\nhref="${tpfx}t.atom">Atom feed</a>);
525 my $parent = in_reply_to($hdr);
527 if (defined $parent) {
528 $$dst .= "($expand)\n ";
529 $$dst .= ghost_parent("$tpfx../", $parent) . "\n";
531 $$dst .= "[no followups, yet] ($expand)\n";
533 $ctx->{next_msg} = undef;
534 $ctx->{parent_msg} = $parent;
538 $$dst .= "$nr+ messages in thread ($expand";
539 $$dst .= qq! / <a\nhref="#b">[top]</a>)\n!;
541 my $subj = $srch->subject_path($hdr->header('Subject'));
542 $ctx->{seen} = { $subj => 1 };
544 $ctx->{prev_attr} = '';
545 $ctx->{prev_level} = 0;
547 walk_thread(thread_results(load_results($sres)), $ctx, *skel_dump);
548 $ctx->{parent_msg} = $parent;
551 sub _parent_headers {
552 my ($hdr, $srch) = @_;
555 my $irt = in_reply_to($hdr);
557 my $v = PublicInbox::Hval->new_msgid($irt);
558 my $html = $v->as_html;
559 my $href = $v->as_href;
560 $rv .= "In-Reply-To: <";
561 $rv .= "<a\nhref=\"../$href/\">$html</a>>\n";
564 # do not display References: if search is present,
565 # we show the thread skeleton at the bottom, instead.
568 my $refs = $hdr->header_raw('References');
570 # avoid redundant URLs wasting bandwidth
572 $seen{$irt} = 1 if defined $irt;
574 my @raw_refs = ($refs =~ /<([^>]+)>/g);
575 foreach my $ref (@raw_refs) {
578 push @refs, linkify_ref_nosrch($ref);
582 $rv .= 'References: '. join("\n\t", @refs) . "\n";
588 sub squote_maybe ($) {
590 if ($val =~ m{([^\w@\./,\%\+\-])}) {
591 $val =~ s/(['!])/'\\$1'/g; # '!' for csh
597 sub mailto_arg_link {
599 my %cc; # everyone else
600 my $to; # this is the From address
602 foreach my $h (qw(From To Cc)) {
603 my $v = $hdr->header($h);
604 defined($v) && ($v ne '') or next;
605 my @addrs = PublicInbox::Address::emails($v);
606 foreach my $address (@addrs) {
607 my $dst = lc($address);
608 $cc{$dst} ||= $address;
614 my $subj = $hdr->header('Subject') || '';
615 $subj = "Re: $subj" unless $subj =~ /\bRe:/i;
616 my $mid = $hdr->header_raw('Message-ID');
617 push @arg, '--in-reply-to='.ascii_html(squote_maybe(mid_clean($mid)));
618 my $irt = uri_escape_utf8($mid);
620 push @arg, '--to=' . ascii_html($to);
621 $to = uri_escape_utf8($to);
622 $subj = uri_escape_utf8($subj);
623 my $cc = join(',', sort values %cc);
624 push @arg, '--cc=' . ascii_html($cc);
625 $cc = uri_escape_utf8($cc);
626 my $href = "mailto:$to?In-Reply-To=$irt&Cc=${cc}&Subject=$subj";
629 (\@arg, ascii_html($href));
633 my ($hdr, $standalone, $ctx, $rhref) = @_;
635 my $srch = $ctx->{srch} if $ctx;
638 my $idx = $standalone ? " <a\nhref=\"$upfx\">index</a>" : '';
642 thread_skel(\$idx, $ctx, $hdr, $tpfx);
647 if (my $n = $ctx->{next_msg}) {
648 $n = PublicInbox::Hval->new_msgid($n)->as_href;
649 $next = "<a\nhref=\"$upfx$n/\"\nrel=next>next</a>";
652 my $par = $ctx->{parent_msg};
654 $u = PublicInbox::Hval->new_msgid($par)->as_href;
657 if (my $p = $ctx->{prev_msg}) {
658 $prev = PublicInbox::Hval->new_msgid($p)->as_href;
659 if ($p && $par && $p eq $par) {
660 $prev = "<a\nhref=\"$upfx$prev/\"\n" .
661 'rel=prev>prev parent</a>';
664 $prev = "<a\nhref=\"$upfx$prev/\"\n" .
666 $parent = " <a\nhref=\"$u\">parent</a>" if $u;
668 } elsif ($u) { # unlikely
669 $parent = " <a\nhref=\"$u\"\nrel=prev>parent</a>";
671 $irt = "$next $prev$parent ";
676 $irt .= qq(<a\nhref="$rhref">reply</a>);
680 sub linkify_ref_nosrch {
681 my $v = PublicInbox::Hval->new_msgid($_[0]);
682 my $html = $v->as_html;
683 my $href = $v->as_href;
684 "<<a\nhref=\"../$href/\">$html</a>>";
689 'm' . id_compress($msgid, 1);
693 my ($upfx, $mid) = @_;
694 # 'subject dummy' is used internally by Mail::Thread
695 return '[no common parent]' if ($mid eq 'subject dummy');
697 $mid = PublicInbox::Hval->new_msgid($mid);
698 my $href = $mid->as_href;
699 my $html = $mid->as_html;
700 qq{[parent not found: <<a\nhref="$upfx$href/">$html</a>>]};
705 INDENT x ($level - 1);
711 [ map { $_->mini_mime } @{delete $sres->{msgs}} ];
716 my $ts = eval { str2time($hdr->header('Date')) };
717 defined($ts) ? $ts : 0;
722 require PublicInbox::Thread;
723 my $th = PublicInbox::Thread->new(@$msgs);
725 $th->order(*sort_ts);
731 require PublicInbox::ExtMsg;
732 PublicInbox::ExtMsg::ext_msg($ctx);
737 my $ts = $hdr->header('X-PI-TS') || msg_timestamp($hdr);
741 sub fmt_ts { POSIX::strftime('%Y-%m-%d %k:%M', gmtime($_[0])) }
744 my ($ctx, $hdr, $level) = @_;
746 my $dst = $ctx->{dst};
747 my $cur = $ctx->{cur};
748 my $mid = mid_clean($hdr->header_raw('Message-ID'));
749 my $f = ascii_html($hdr->header('X-PI-From'));
750 my $d = _msg_date($hdr) . ' ' . indent_for($level) . th_pfx($level);
752 $ctx->{first_level} ||= $level;
754 if ($attr ne $ctx->{prev_attr} || $ctx->{prev_level} > $level) {
755 $ctx->{prev_attr} = $attr;
757 $ctx->{prev_level} = $level;
762 $$dst .= "<b>$d<a\nid=r\nhref=\"#t\">".
763 "$attr [this message]</a></b>\n";
766 $ctx->{prev_msg} = $mid;
769 $ctx->{next_msg} ||= $mid;
772 # Subject is never undef, this mail was loaded from
773 # our Xapian which would've resulted in '' if it were
774 # really missing (and Filter rejects empty subjects)
775 my $s = $hdr->header('Subject');
776 my $h = $ctx->{srch}->subject_path($s);
777 if ($ctx->{seen}->{$h}) {
780 $ctx->{seen}->{$h} = 1;
781 $s = PublicInbox::Hval->new($s);
784 my $m = PublicInbox::Hval->new_msgid($mid);
786 my $mapping = $ctx->{mapping};
787 my $end = defined($s) ? "$s</a> $f\n" : "$f</a>\n";
789 my $map = $mapping->{$mid};
790 $id = id_compress($mid, 1);
792 $map->[1] = "$d<a\nhref=\"$m\">$end";
795 $m = $ctx->{-upfx}.$m->as_href.'/';
797 $$dst .= $d . "<a\nhref=\"$m\"$id>" . $end;
801 my ($ctx, $level, $node) = @_;
802 if (my $mime = $node->message) {
803 _skel_header($ctx, $mime->header_obj, $level);
805 my $mid = $node->messageid;
806 my $dst = $ctx->{dst};
807 my $mapping = $ctx->{mapping};
808 my $map = $mapping->{$mid} if $mapping;
809 if ($mid eq 'subject dummy') {
810 my $ncp = "\t[no common parent]\n";
811 $map->[1] = $ncp if $map;
815 my $d = $ctx->{pct} ? ' [irrelevant] ' # search result
817 $d .= indent_for($level) . th_pfx($level);
818 my $upfx = $ctx->{-upfx};
819 my $m = PublicInbox::Hval->new_msgid($mid);
820 my $href = $upfx . $m->as_href . '/';
821 my $html = $m->as_html;
824 my $id = id_compress($mid, 1);
825 $map->[1] = $d . qq{<<a\nhref=#r$id>$html</a>>\n};
826 $d .= qq{<<a\nhref="$href"\nid=r$id>$html</a>>\n};
828 $d .= qq{<<a\nhref="$href">$html</a>>\n};
836 (eval { $a->topmost->message->header('X-PI-TS') } || 0) <=>
837 (eval { $b->topmost->message->header('X-PI-TS') } || 0)
841 sub _tryload_ghost ($$) {
842 my ($srch, $mid) = @_;
843 my $smsg = $srch->lookup_mail($mid) or return;
847 # accumulate recent topics if search is supported
848 # returns 200 if done, 404 if not
850 my ($ctx, $level, $node) = @_;
851 my $srch = $ctx->{srch};
852 my $mid = $node->messageid;
853 my $x = $node->message || _tryload_ghost($srch, $mid);
858 $subj = $x->header('Subject') || '';
859 $subj = $srch->subject_normalized($subj);
860 $ts = $x->header('X-PI-TS');
862 $topic = [ $ts, 1, { $subj => $mid }, $subj ];
863 $ctx->{-cur_topic} = $topic;
864 push @{$ctx->{order}}, $topic;
868 $topic = $ctx->{-cur_topic}; # should never be undef
869 $topic->[0] = $ts if $ts > $topic->[0];
871 my $seen = $topic->[2];
872 if (scalar(@$topic) == 3) { # parent was a ghost
874 } elsif (!$seen->{$subj}) {
875 push @$topic, $level, $subj;
877 $seen->{$subj} = $mid; # latest for subject
878 } else { # ghost message
879 return if $level != 0; # ignore child ghosts
880 $topic = [ -666, 0, {} ];
881 $ctx->{-cur_topic} = $topic;
882 push @{$ctx->{order}}, $topic;
888 my $order = delete $ctx->{order}; # [ ts, subj1, subj2, subj3, ... ]
890 $ctx->{-html_tip} = '<pre>[No topics in range]</pre>';
896 # sort by recency, this allows new posts to "bump" old topics...
897 foreach my $topic (sort { $b->[0] <=> $a->[0] } @$order) {
898 my ($ts, $n, $seen, $top, @ex) = @$topic;
900 next unless defined $top; # ghost topic
901 my $mid = delete $seen->{$top};
902 my $href = PublicInbox::Hval->new_msgid($mid)->as_href;
903 $top = PublicInbox::Hval->new($top)->as_html;
906 # $n isn't the total number of posts on the topic,
907 # just the number of posts in the current results window
911 $anchor = '#u'; # top of only message
913 $n = " ($n+ messages)";
914 $anchor = '#t'; # thread skeleton
917 my $mbox = qq(<a\nhref="$href/t.mbox.gz">mbox.gz</a>);
918 my $atom = qq(<a\nhref="$href/t.atom">Atom</a>);
919 my $s = "<a\nhref=\"$href/T/$anchor\"><b>$top</b></a>\n" .
920 " $ts UTC $n - $mbox / $atom\n";
921 for (my $i = 0; $i < scalar(@ex); $i += 2) {
923 my $sub = $ex[$i + 1];
924 $mid = delete $seen->{$sub};
925 $sub = PublicInbox::Hval->new($sub)->as_html;
926 $href = PublicInbox::Hval->new_msgid($mid)->as_href;
927 $s .= indent_for($level) . TCHILD;
928 $s .= "<a\nhref=\"$href/T/#u\">$sub</a>\n";
932 $ctx->{-html_tip} = '<pre>' . join("\n", @out) . '</pre>';
936 sub index_nav { # callback for WwwStream
937 my (undef, $ctx) = @_;
938 delete $ctx->{qp} or return;
943 my $next_o = $ctx->{-next_o};
945 $next = qq!<a\nhref="?o=$next_o"\nrel=next>next</a>!;
947 if (my $cur_o = $ctx->{-cur_o}) {
948 $latest = qq! <a\nhref=.>latest</a>!;
950 my $o = $cur_o - ($next_o - $cur_o);
952 $prev = qq!<a\nhref="?o=$o"\nrel=prev>prev</a>!;
954 $prev = qq!<a\nhref=.\nrel=prev>prev</a>!;
957 "<hr><pre>page: $next $prev$latest</pre>";
962 my ($off) = (($ctx->{qp}->{o} || '0') =~ /(\d+)/);
963 my $opts = { offset => $off, limit => 200 };
966 my $sres = $ctx->{srch}->query('', $opts);
967 my $nr = scalar @{$sres->{msgs}};
969 $sres = load_results($sres);
970 walk_thread(thread_results($sres), $ctx, *acc_topic);
972 $ctx->{-next_o} = $off+ $nr;
973 $ctx->{-cur_o} = $off;
974 PublicInbox::WwwStream->response($ctx, dump_topics($ctx), *index_nav);
977 sub thread_adj_level {
978 my ($ctx, $level) = @_;
980 my $max = $ctx->{cur_level};
982 return ('', '') if $max == 0; # flat output
984 # reset existing lists
985 my $beg = $max > 1 ? ('</ul></li>' x ($max - 1)) : '';
986 $ctx->{cur_level} = 0;
988 } elsif ($level == $max) { # continue existing list
990 } elsif ($level < $max) {
991 my $beg = $max > 1 ? ('</ul></li>' x ($max - $level)) : '';
992 $ctx->{cur_level} = $level;
993 ("$beg<li>", '</li>');
994 } else { # ($level > $max) # start a new level
995 $ctx->{cur_level} = $level;
996 my $beg = ($max ? '<li>' : '') . '<ul><li>';
1001 sub ghost_index_entry {
1002 my ($ctx, $level, $mid) = @_;
1003 my ($beg, $end) = thread_adj_level($ctx, $level);
1004 $beg . '<pre>'. ghost_parent($ctx->{-upfx}, $mid) . '</pre>' . $end;