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 Date::Parse qw/str2time/;
10 use PublicInbox::Hval qw/ascii_html obfuscate_addrs/;
11 use PublicInbox::Linkify;
12 use PublicInbox::MID qw/mid_clean id_compress mid_mime mid_escape/;
13 use PublicInbox::MsgIter;
14 use PublicInbox::Address;
15 use PublicInbox::WwwStream;
16 use PublicInbox::Reply;
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 $ibx = $ctx->{-inbox};
28 my $obfs_ibx = $ibx->{obfuscate} ? $ibx : undef;
29 my $tip = _msg_html_prepare($hdr, $ctx, $obfs_ibx);
30 PublicInbox::WwwStream->response($ctx, 200, sub {
33 $tip . multipart_text_as_html($mime, '', $obfs_ibx) .
36 # fake an EOF if generating the footer fails;
37 # we want to at least show the message if something
40 '<pre>' . html_footer($hdr, 1, $ctx) .
41 '</pre>' . msg_reply($ctx, $hdr)
49 # /$INBOX/$MESSAGE_ID/#R
53 'https://kernel.org/pub/software/scm/git/docs/git-send-email.html';
55 'https://en.wikipedia.org/wiki/Posting_style#Interleaved_style';
58 my $ibx = $ctx->{-inbox};
59 if (my $url = $ibx->{infourl}) {
60 $url = PublicInbox::Hval::prurl($ctx->{env}, $url);
61 $info = qq(\n List information: <a\nhref="$url">$url</a>\n);
64 my ($arg, $link) = PublicInbox::Reply::mailto_arg_link($ibx, $hdr);
66 # mailto: link only works if address obfuscation is disabled
70 * If your mail client supports setting the <b>In-Reply-To</b> header
71 via mailto: links, try the <a
72 href="$link">mailto: link</a></pre>
75 push @$arg, '/path/to/YOUR_REPLY';
76 $arg = ascii_html(join(" \\\n ", '', @$arg));
79 id=R><b>Reply instructions:</b>
81 You may reply publically to <a
82 href=#t>this message</a> via plain-text email
83 using any one of the following methods:
85 * Save the following mbox file, import it into your mail client,
86 and reply-to-all from there: <a
89 Avoid top-posting and favor interleaved quoting:
91 href="$p_url">$p_url</a>
93 * Reply to all the recipients using the <b>--to</b>, <b>--cc</b>,
94 and <b>--in-reply-to</b> switches of git-send-email(1):
99 href="$se_url">$se_url</a>
106 my %mid = map { $_ => 1 } $hdr->header_raw('Message-ID');
107 my @refs = (($hdr->header_raw('References') || '') =~ /<([^>]+)>/g);
108 push(@refs, (($hdr->header_raw('In-Reply-To') || '') =~ /<([^>]+)>/g));
109 while (defined(my $irt = pop @refs)) {
110 next if $mid{"<$irt>"};
116 sub _hdr_names_html ($$) {
117 my ($hdr, $field) = @_;
118 my $val = $hdr->header($field) or return '';
119 ascii_html(join(', ', PublicInbox::Address::names($val)));
123 my ($nr, $singular, $plural) = @_;
124 return "0 $plural" if $nr == 0;
125 $nr == 1 ? "$nr $singular" : "$nr $plural";
128 # this is already inside a <pre>
130 my ($mime, $ctx, $more) = @_;
131 my $srch = $ctx->{srch};
132 my $hdr = $mime->header_obj;
133 my $subj = $hdr->header('Subject');
135 my $mid_raw = mid_clean(mid_mime($mime));
136 my $id = id_compress($mid_raw, 1);
139 my $root_anchor = $ctx->{root_anchor} || '';
141 my $obfs_ibx = $ctx->{-obfs_ibx};
143 my $rv = "<a\nhref=#e$id\nid=m$id>*</a> ";
144 $subj = '<b>'.ascii_html($subj).'</b>';
145 obfuscate_addrs($obfs_ibx, $subj) if $obfs_ibx;
146 $subj = "<u\nid=u>$subj</u>" if $root_anchor eq $id_m;
148 $rv .= _th_index_lite($mid_raw, \$irt, $id, $ctx);
150 foreach my $f (qw(To Cc)) {
151 my $dst = _hdr_names_html($hdr, $f);
153 obfuscate_addrs($obfs_ibx, $dst) if $obfs_ibx;
154 push @tocc, "$f: $dst";
157 my $from = _hdr_names_html($hdr, 'From');
158 obfuscate_addrs($obfs_ibx, $from) if $obfs_ibx;
159 $rv .= "From: $from @ "._msg_date($hdr)." UTC";
160 my $upfx = $ctx->{-upfx};
161 my $mhref = $upfx . mid_escape($mid_raw) . '/';
162 $rv .= qq{ (<a\nhref="$mhref">permalink</a> / };
163 $rv .= qq{<a\nhref="${mhref}raw">raw</a>)\n};
164 $rv .= ' '.join('; +', @tocc) . "\n" if @tocc;
166 my $mapping = $ctx->{mapping};
167 if (!$mapping && (defined($irt) || defined($irt = in_reply_to($hdr)))) {
168 my $mirt = PublicInbox::Hval->new_msgid($irt);
169 my $href = $upfx . $mirt->{href}. '/';
170 my $html = $mirt->as_html;
171 $rv .= qq(In-Reply-To: <<a\nhref="$href">$html</a>>\n)
175 # scan through all parts, looking for displayable text
176 msg_iter($mime, sub { $rv .= add_text_body($mhref, $obfs_ibx, $_[0]) });
179 $rv .= "\n<a\nhref=#$id_m\nid=e$id>^</a> ".
180 "<a\nhref=\"$mhref\">permalink</a>" .
181 " <a\nhref=\"${mhref}raw\">raw</a>" .
182 " <a\nhref=\"${mhref}#R\">reply</a>";
185 if (my $pct = $ctx->{pct}) { # used by SearchView.pm
186 $rv .= "\t[relevance $pct->{$mid_raw}%]";
189 my $nested = 'nested';
194 $flat = "<b>$flat</b>";
196 $nested = "<b>$nested</b>";
198 $rv .= "\t[<a\nhref=\"${mhref}T/#u\">$flat</a>";
199 $rv .= "|<a\nhref=\"${mhref}t/#u\">$nested</a>]";
200 $rv .= " <a\nhref=#r$id>$ctx->{s_nr}</a>";
205 $rv .= $more ? '</pre><hr><pre>' : '</pre>' if $hr;
209 sub pad_link ($$;$) {
210 my ($mid, $level, $s) = @_;
212 my $id = id_compress($mid, 1);
213 (' 'x19).indent_for($level).th_pfx($level)."<a\nhref=#r$id>($s)</a>\n";
217 my ($mid_raw, $irt, $id, $ctx) = @_;
219 my $mapping = $ctx->{mapping} or return $rv;
221 my $mid_map = $mapping->{$mid_raw};
223 return 'public-inbox BUG: '.ascii_html($mid_raw).' not mapped';
224 my ($attr, $node, $idx, $level) = @$mid_map;
225 my $children = $node->{children};
226 my $nr_c = scalar @$children;
229 if (my $smsg = $node->{smsg}) {
230 ($$irt) = (($smsg->{references} || '') =~ m/<([^>]+)>\z/);
232 my $irt_map = $mapping->{$$irt} if defined $$irt;
233 if (defined $irt_map) {
234 $siblings = $irt_map->[1]->{children};
235 $nr_s = scalar(@$siblings) - 1;
236 $rv .= $pad . $irt_map->[0];
238 my $prev = $siblings->[$idx - 1];
239 my $pmid = $prev->{id};
241 my $s = ($idx - 1). ' preceding siblings ...';
242 $rv .= pad_link($pmid, $level, $s);
243 } elsif ($idx == 2) {
244 my $ppmid = $siblings->[0]->{id};
245 $rv .= $pad . $mapping->{$ppmid}->[0];
247 $rv .= $pad . $mapping->{$pmid}->[0];
250 my $s_s = nr_to_s($nr_s, 'sibling', 'siblings');
251 my $s_c = nr_to_s($nr_c, 'reply', 'replies');
252 $attr =~ s!\n\z!</b>\n!s;
253 $attr =~ s!<a\nhref.*</a> !!s; # no point in duplicating subject
254 $attr =~ s!<a\nhref=[^>]+>([^<]+)</a>!$1!s; # no point linking to self
257 my $cmid = $children->[0]->{id};
258 $rv .= $pad . $mapping->{$cmid}->[0];
260 my $s = ($nr_c - 1). ' more replies';
261 $rv .= pad_link($cmid, $level + 1, $s);
262 } elsif (my $cn = $children->[1]) {
263 $rv .= $pad . $mapping->{$cn->{id}}->[0];
267 my $next = $siblings->[$idx+1] if $siblings && $idx >= 0;
269 my $nmid = $next->{id};
270 $rv .= $pad . $mapping->{$nmid}->[0];
271 my $nnext = $nr_s - $idx;
273 my $s = ($nnext - 1).' subsequent siblings';
274 $rv .= pad_link($nmid, $level, $s);
275 } elsif (my $nn = $siblings->[$idx + 2]) {
276 $rv .= $pad . $mapping->{$nn->{id}}->[0];
279 $rv .= $pad ."<a\nhref=#r$id>$s_s, $s_c; $ctx->{s_nr}</a>\n";
283 my ($rootset, $ctx, $cb) = @_;
284 my @q = map { (0, $_, -1) } @$rootset;
286 my ($level, $node, $i) = splice(@q, 0, 3);
287 defined $node or next;
288 $cb->($ctx, $level, $node, $i);
291 unshift @q, map { ($level, $_, $i++) } @{$node->{children}};
296 my ($ctx, $level, $node, $idx) = @_;
297 $ctx->{mapping}->{$node->{id}} = [ '', $node, $idx, $level ];
298 skel_dump($ctx, $level, $node);
301 sub thread_index_entry {
302 my ($ctx, $level, $mime) = @_;
303 my ($beg, $end) = thread_adj_level($ctx, $level);
304 $beg . '<pre>' . index_entry($mime, $ctx, 0) . '</pre>' . $end;
307 sub stream_thread ($$) {
308 my ($rootset, $ctx) = @_;
309 my $inbox = $ctx->{-inbox};
311 my @q = map { (0, $_) } @$rootset;
315 my $node = shift @q or next;
317 unshift @q, map { ($cl, $_) } @{$node->{children}};
318 $mime = $inbox->msg_by_smsg($node->{smsg}) and last;
320 return missing_thread($ctx) unless $mime;
322 $ctx->{-obfs_ibx} = $inbox->{obfuscate} ? $inbox : undef;
323 $mime = PublicInbox::MIME->new($mime);
324 $ctx->{-title_html} = ascii_html($mime->header('Subject'));
325 $ctx->{-html_tip} = thread_index_entry($ctx, $level, $mime);
326 PublicInbox::WwwStream->response($ctx, 200, sub {
330 my $node = shift @q or next;
332 unshift @q, map { ($cl, $_) } @{$node->{children}};
333 my $mid = $node->{id};
334 if ($mime = $inbox->msg_by_smsg($node->{smsg})) {
335 $mime = PublicInbox::MIME->new($mime);
336 return thread_index_entry($ctx, $level, $mime);
338 return ghost_index_entry($ctx, $level, $node);
341 my $ret = join('', thread_adj_level($ctx, 0));
342 $ret .= ${$ctx->{dst}}; # skel
350 my $mid = $ctx->{mid};
351 my $srch = $ctx->{srch};
352 my $sres = $srch->get_thread($mid);
353 my $msgs = load_results($srch, $sres);
354 my $nr = $sres->{total};
355 return missing_thread($ctx) if $nr == 0;
356 my $skel = '<hr><pre>';
357 $skel .= $nr == 1 ? 'only message in thread' : 'end of thread';
358 $skel .= ", back to <a\nhref=\"../../\">index</a>\n\n";
359 $skel .= "<b\nid=t>Thread overview:</b> ";
360 $skel .= $nr == 1 ? '(only message)' : "$nr+ messages";
361 $skel .= " (download: <a\nhref=\"../t.mbox.gz\">mbox.gz</a>";
362 $skel .= " / follow: <a\nhref=\"../t.atom\">Atom feed</a>)\n";
363 $skel .= "-- links below jump to the message on this page --\n";
364 $ctx->{-upfx} = '../../';
365 $ctx->{cur_level} = 0;
366 $ctx->{dst} = \$skel;
367 $ctx->{prev_attr} = '';
368 $ctx->{prev_level} = 0;
369 $ctx->{root_anchor} = anchor_for($mid);
370 $ctx->{mapping} = {};
371 $ctx->{s_nr} = "$nr+ messages in thread";
373 my $rootset = thread_results($msgs, $srch);
375 # reduce hash lookups in pre_thread->skel_dump
376 my $inbox = $ctx->{-inbox};
377 $ctx->{-obfs_ibx} = $inbox->{obfuscate} ? $inbox : undef;
378 walk_thread($rootset, $ctx, *pre_thread);
381 return stream_thread($rootset, $ctx) unless $ctx->{flat};
383 # flat display: lazy load the full message from smsg
385 while ($mime = shift @$msgs) {
386 $mime = $inbox->msg_by_smsg($mime) and last;
388 return missing_thread($ctx) unless $mime;
389 $mime = PublicInbox::MIME->new($mime);
390 $ctx->{-title_html} = ascii_html($mime->header('Subject'));
391 $ctx->{-html_tip} = '<pre>'.index_entry($mime, $ctx, scalar @$msgs);
393 PublicInbox::WwwStream->response($ctx, 200, sub {
395 while ($mime = shift @$msgs) {
396 $mime = $inbox->msg_by_smsg($mime) and last;
399 $mime = PublicInbox::MIME->new($mime);
400 return index_entry($mime, $ctx, scalar @$msgs);
407 sub multipart_text_as_html {
408 my ($mime, $upfx, $obfs_ibx) = @_;
411 # scan through all parts, looking for displayable text
412 msg_iter($mime, sub { $rv .= add_text_body($upfx, $obfs_ibx, $_[0]) });
417 my ($s, $l, $quot) = @_;
419 # show everything in the full version with anchor from
420 # short version (see above)
421 my $rv = $l->linkify_1(join('', @$quot));
424 # we use a <span> here to allow users to specify their own
425 # color for quoted text
426 $rv = $l->linkify_2(ascii_html($rv));
427 $$s .= qq(<span\nclass="q">) . $rv . '</span>'
430 sub attach_link ($$$$;$) {
431 my ($upfx, $ct, $p, $fn, $err) = @_;
432 my ($part, $depth, @idx) = @$p;
433 my $nl = $idx[-1] > 1 ? "\n" : '';
434 my $idx = join('.', @idx);
435 my $size = bytes::length($part->body);
437 # hide attributes normally, unless we want to aid users in
438 # spotting MUA problems:
439 $ct =~ s/;.*// unless $err;
440 $ct = ascii_html($ct);
441 my $desc = $part->header('Content-Description');
442 $desc = $fn unless defined $desc;
443 $desc = '' unless defined $desc;
445 if (defined $fn && $fn =~ /\A[[:alnum:]][\w\.-]+[[:alnum:]]\z/) {
447 } elsif ($ct eq 'text/plain') {
452 my $ret = qq($nl<a\nhref="$upfx$idx-$sfn">);
455 "[-- Warning: decoded text below may be mangled --]\n";
457 $ret .= "[-- Attachment #$idx: ";
458 my $ts = "Type: $ct, Size: $size bytes";
459 $desc = ascii_html($desc);
460 $ret .= ($desc eq '') ? "$ts --]" : "$desc --]\n[-- $ts --]";
465 my ($upfx, $obfs_ibx, $p) = @_;
466 # $p - from msg_iter: [ Email::MIME, depth, @idx ]
467 my ($part, $depth) = @$p; # attachment @idx is unused
468 my $ct = $part->content_type || 'text/plain';
469 my $fn = $part->filename;
471 if ($ct =~ m!\btext/x?html\b!i) {
472 return attach_link($upfx, $ct, $p, $fn);
475 my $s = eval { $part->body_str };
477 # badly-encoded message? tell the world about it!
480 if ($ct =~ m!\btext/plain\b!i) {
481 # Try to assume UTF-8 because Alpine seems to
482 # do wacky things and set charset=X-UNKNOWN
483 $part->charset_set('UTF-8');
484 $s = eval { $part->body_str };
486 # If forcing charset=UTF-8 failed,
487 # attach_link will warn further down...
488 $s = $part->body if $@;
490 return attach_link($upfx, $ct, $p, $fn);
494 my @lines = split(/^/m, $s);
496 if (defined($fn) || $depth > 0 || $err) {
497 $s .= attach_link($upfx, $ct, $p, $fn, $err);
501 my $l = PublicInbox::Linkify->new;
502 foreach my $cur (@lines) {
504 # show the previously buffered quote inline
505 flush_quote(\$s, $l, \@quot) if @quot;
509 $s .= $l->linkify_2(ascii_html($cur));
515 if (@quot) { # ugh, top posted
516 flush_quote(\$s, $l, \@quot);
517 obfuscate_addrs($obfs_ibx, $s) if $obfs_ibx;
520 obfuscate_addrs($obfs_ibx, $s) if $obfs_ibx;
521 if ($s =~ /\n\z/s) { # common, last line ends with a newline
523 } else { # some editors don't do newlines...
529 sub _msg_html_prepare {
530 my ($hdr, $ctx, $obfs_ibx) = @_;
531 my $srch = $ctx->{srch} if $ctx;
533 my $rv = "<pre\nid=b>"; # anchor for body start
536 $ctx->{-upfx} = '../';
539 my $mid = mid_clean($hdr->header_raw('Message-ID'));
540 $mid = PublicInbox::Hval->new_msgid($mid);
541 foreach my $h (qw(From To Cc Subject Date)) {
542 my $v = $hdr->header($h);
543 defined($v) && ($v ne '') or next;
544 $v = PublicInbox::Hval->new($v);
547 my @n = PublicInbox::Address::names($v->raw);
548 $title[1] = ascii_html(join(', ', @n));
549 obfuscate_addrs($obfs_ibx, $title[1]) if $obfs_ibx;
550 } elsif ($h eq 'Subject') {
551 $title[0] = $v->as_html;
553 $rv .= qq($h: <a\nhref="#r"\nid=t>);
554 $rv .= $v->as_html . "</a>\n";
559 obfuscate_addrs($obfs_ibx, $v) if $obfs_ibx;
563 $title[0] ||= '(no subject)';
564 $ctx->{-title_html} = join(' - ', @title);
565 $rv .= 'Message-ID: <' . $mid->as_html . '> ';
566 $rv .= "(<a\nhref=\"raw\">raw</a>)\n";
567 $rv .= _parent_headers($hdr, $srch);
572 my ($dst, $ctx, $hdr, $tpfx) = @_;
573 my $srch = $ctx->{srch};
574 my $mid = mid_clean($hdr->header_raw('Message-ID'));
575 my $sres = $srch->get_thread($mid);
576 my $nr = $sres->{total};
577 my $expand = qq(<a\nhref="${tpfx}T/#u">expand</a> ) .
578 qq(/ <a\nhref="${tpfx}t.mbox.gz">mbox.gz</a> ) .
579 qq(/ <a\nhref="${tpfx}t.atom">Atom feed</a>);
581 my $parent = in_reply_to($hdr);
582 $$dst .= "\n<b>Thread overview: </b>";
584 if (defined $parent) {
585 $$dst .= "($expand)\n ";
586 $$dst .= ghost_parent("$tpfx../", $parent) . "\n";
588 $$dst .= "[no followups, yet] ($expand)\n";
590 $ctx->{next_msg} = undef;
591 $ctx->{parent_msg} = $parent;
595 $$dst .= "$nr+ messages in thread ($expand";
596 $$dst .= qq! / <a\nhref="#b">[top]</a>)\n!;
598 my $subj = $hdr->header('Subject');
599 defined $subj or $subj = '';
600 $ctx->{prev_subj} = [ split(/ /, $srch->subject_normalized($subj)) ];
602 $ctx->{prev_attr} = '';
603 $ctx->{prev_level} = 0;
605 $sres = load_results($srch, $sres);
607 # reduce hash lookups in skel_dump
608 my $ibx = $ctx->{-inbox};
609 $ctx->{-obfs_ibx} = $ibx->{obfuscate} ? $ibx : undef;
610 walk_thread(thread_results($sres, $srch), $ctx, *skel_dump);
612 $ctx->{parent_msg} = $parent;
615 sub _parent_headers {
616 my ($hdr, $srch) = @_;
619 my $irt = in_reply_to($hdr);
621 my $v = PublicInbox::Hval->new_msgid($irt);
622 my $html = $v->as_html;
623 my $href = $v->{href};
624 $rv .= "In-Reply-To: <";
625 $rv .= "<a\nhref=\"../$href/\">$html</a>>\n";
628 # do not display References: if search is present,
629 # we show the thread skeleton at the bottom, instead.
632 my $refs = $hdr->header_raw('References');
634 # avoid redundant URLs wasting bandwidth
636 $seen{$irt} = 1 if defined $irt;
638 my @raw_refs = ($refs =~ /<([^>]+)>/g);
639 foreach my $ref (@raw_refs) {
642 push @refs, linkify_ref_nosrch($ref);
646 $rv .= 'References: '. join("\n\t", @refs) . "\n";
653 my ($hdr, $standalone, $ctx, $rhref) = @_;
655 my $srch = $ctx->{srch} if $ctx;
658 my $idx = $standalone ? " <a\nhref=\"$upfx\">index</a>" : '';
662 thread_skel(\$idx, $ctx, $hdr, $tpfx);
667 if (my $n = $ctx->{next_msg}) {
668 $n = PublicInbox::Hval->new_msgid($n)->{href};
669 $next = "<a\nhref=\"$upfx$n/\"\nrel=next>next</a>";
672 my $par = $ctx->{parent_msg};
674 $u = PublicInbox::Hval->new_msgid($par)->{href};
677 if (my $p = $ctx->{prev_msg}) {
678 $prev = PublicInbox::Hval->new_msgid($p)->{href};
679 if ($p && $par && $p eq $par) {
680 $prev = "<a\nhref=\"$upfx$prev/\"\n" .
681 'rel=prev>prev parent</a>';
684 $prev = "<a\nhref=\"$upfx$prev/\"\n" .
686 $parent = " <a\nhref=\"$u\">parent</a>" if $u;
688 } elsif ($u) { # unlikely
689 $parent = " <a\nhref=\"$u\"\nrel=prev>parent</a>";
691 $irt = "$next $prev$parent ";
696 $irt .= qq(<a\nhref="$rhref">reply</a>);
700 sub linkify_ref_nosrch {
701 my $v = PublicInbox::Hval->new_msgid($_[0]);
702 my $html = $v->as_html;
703 my $href = $v->{href};
704 "<<a\nhref=\"../$href/\">$html</a>>";
709 'm' . id_compress($msgid, 1);
713 my ($upfx, $mid) = @_;
715 $mid = PublicInbox::Hval->new_msgid($mid);
716 my $href = $mid->{href};
717 my $html = $mid->as_html;
718 qq{[parent not found: <<a\nhref="$upfx$href/">$html</a>>]};
723 INDENT x ($level - 1);
727 my ($srch, $sres) = @_;
728 my $msgs = delete $sres->{msgs};
729 $srch->retry_reopen(sub { [ map { $_->mid; $_ } @$msgs ] });
734 my $ts = eval { str2time($hdr->header('Date')) };
735 defined($ts) ? $ts : 0;
739 my ($msgs, $srch) = @_;
740 require PublicInbox::SearchThread;
741 PublicInbox::SearchThread::thread($msgs, *sort_ts, $srch);
746 require PublicInbox::ExtMsg;
747 PublicInbox::ExtMsg::ext_msg($ctx);
752 my $ts = $hdr->header('X-PI-TS') || msg_timestamp($hdr);
756 sub fmt_ts { POSIX::strftime('%Y-%m-%d %k:%M', gmtime($_[0])) }
759 my ($ctx, $level, $node) = @_;
760 my $smsg = $node->{smsg} or return _skel_ghost($ctx, $level, $node);
762 my $dst = $ctx->{dst};
763 my $cur = $ctx->{cur};
764 my $mid = $smsg->{mid};
766 my $f = ascii_html($smsg->from_name);
767 my $obfs_ibx = $ctx->{-obfs_ibx};
768 obfuscate_addrs($obfs_ibx, $f) if $obfs_ibx;
770 my $d = fmt_ts($smsg->{ts}) . ' ' . indent_for($level) . th_pfx($level);
772 $ctx->{first_level} ||= $level;
774 if ($attr ne $ctx->{prev_attr} || $ctx->{prev_level} > $level) {
775 $ctx->{prev_attr} = $attr;
777 $ctx->{prev_level} = $level;
782 $$dst .= "<b>$d<a\nid=r\nhref=\"#t\">".
783 "$attr [this message]</a></b>\n";
786 $ctx->{prev_msg} = $mid;
789 $ctx->{next_msg} ||= $mid;
792 # Subject is never undef, this mail was loaded from
793 # our Xapian which would've resulted in '' if it were
794 # really missing (and Filter rejects empty subjects)
795 my @subj = split(/ /, $ctx->{srch}->subject_normalized($smsg->subject));
797 # remove common suffixes from the subject if it matches the previous,
798 # so we do not show redundant text at the end.
799 my $prev_subj = $ctx->{prev_subj} || [];
800 $ctx->{prev_subj} = [ @subj ];
801 my $omit = ''; # '"' denotes identical text omitted
802 while (@$prev_subj && @subj && $subj[-1] eq $prev_subj->[-1]) {
807 pop @subj if @subj && $subj[-1] =~ /^re:\s*/i;
810 my $subj = join(' ', @subj);
811 $subj = ascii_html($subj);
812 obfuscate_addrs($obfs_ibx, $subj) if $obfs_ibx;
813 $end = "$subj</a> $omit$f\n"
819 my $mapping = $ctx->{mapping};
821 my $map = $mapping->{$mid};
822 $id = id_compress($mid, 1);
824 $map->[0] = "$d<a\nhref=\"$m\">$end";
827 $m = $ctx->{-upfx}.mid_escape($mid).'/';
829 $$dst .= $d . "<a\nhref=\"$m\"$id>" . $end;
833 my ($ctx, $level, $node) = @_;
835 my $mid = $node->{id};
836 my $d = $ctx->{pct} ? ' [irrelevant] ' # search result
838 $d .= indent_for($level) . th_pfx($level);
839 my $upfx = $ctx->{-upfx};
840 my $m = PublicInbox::Hval->new_msgid($mid);
841 my $href = $upfx . $m->{href} . '/';
842 my $html = $m->as_html;
844 my $mapping = $ctx->{mapping};
845 my $map = $mapping->{$mid} if $mapping;
847 my $id = id_compress($mid, 1);
848 $map->[0] = $d . qq{<<a\nhref=#r$id>$html</a>>\n};
849 $d .= qq{<<a\nhref="$href"\nid=r$id>$html</a>>\n};
851 $d .= qq{<<a\nhref="$href">$html</a>>\n};
853 my $dst = $ctx->{dst};
859 (eval { $a->topmost->{smsg}->ts } || 0) <=>
860 (eval { $b->topmost->{smsg}->ts } || 0)
864 # accumulate recent topics if search is supported
865 # returns 200 if done, 404 if not
867 my ($ctx, $level, $node) = @_;
868 my $srch = $ctx->{srch};
869 my $mid = $node->{id};
870 my $x = $node->{smsg} || $srch->lookup_mail($mid);
875 $subj = $srch->subject_normalized($subj);
878 $topic = [ $ts, 1, { $subj => $mid }, $subj ];
879 $ctx->{-cur_topic} = $topic;
880 push @{$ctx->{order}}, $topic;
884 $topic = $ctx->{-cur_topic}; # should never be undef
885 $topic->[0] = $ts if $ts > $topic->[0];
887 my $seen = $topic->[2];
888 if (scalar(@$topic) == 3) { # parent was a ghost
890 } elsif (!$seen->{$subj}) {
891 push @$topic, $level, $subj;
893 $seen->{$subj} = $mid; # latest for subject
894 } else { # ghost message
895 return if $level != 0; # ignore child ghosts
896 $topic = [ -666, 0, {} ];
897 $ctx->{-cur_topic} = $topic;
898 push @{$ctx->{order}}, $topic;
904 my $order = delete $ctx->{order}; # [ ts, subj1, subj2, subj3, ... ]
906 $ctx->{-html_tip} = '<pre>[No topics in range]</pre>';
911 my $ibx = $ctx->{-inbox};
912 my $obfs_ibx = $ibx->{obfuscate} ? $ibx : undef;
913 my $srch = $ctx->{srch};
915 # sort by recency, this allows new posts to "bump" old topics...
916 foreach my $topic (sort { $b->[0] <=> $a->[0] } @$order) {
917 my ($ts, $n, $seen, $top, @ex) = @$topic;
919 next unless defined $top; # ghost topic
920 my $mid = delete $seen->{$top};
921 my $href = mid_escape($mid);
922 my $prev_subj = [ split(/ /, $top) ];
923 $top = PublicInbox::Hval->new($top)->as_html;
926 # $n isn't the total number of posts on the topic,
927 # just the number of posts in the current results window
931 $anchor = '#u'; # top of only message
933 $n = " ($n+ messages)";
934 $anchor = '#t'; # thread skeleton
937 my $mbox = qq(<a\nhref="$href/t.mbox.gz">mbox.gz</a>);
938 my $atom = qq(<a\nhref="$href/t.atom">Atom</a>);
939 my $s = "<a\nhref=\"$href/T/$anchor\"><b>$top</b></a>\n" .
940 " $ts UTC $n - $mbox / $atom\n";
941 for (my $i = 0; $i < scalar(@ex); $i += 2) {
943 my $subj = $ex[$i + 1];
944 $mid = delete $seen->{$subj};
945 my @subj = split(/ /, $srch->subject_normalized($subj));
946 my @next_prev = @subj; # full copy
947 my $omit = ''; # '"' denotes identical text omitted
948 while (@$prev_subj && @subj &&
949 $subj[-1] eq $prev_subj->[-1]) {
954 pop @subj if @subj && $subj[-1] =~ /^re:\s*/i;
955 $prev_subj = \@next_prev;
956 $subj = ascii_html(join(' ', @subj));
957 obfuscate_addrs($obfs_ibx, $subj) if $obfs_ibx;
958 $href = mid_escape($mid);
959 $s .= indent_for($level) . TCHILD;
960 $s .= "<a\nhref=\"$href/T/#u\">$subj</a>$omit\n";
964 $ctx->{-html_tip} = '<pre>' . join("\n", @out) . '</pre>';
968 sub index_nav { # callback for WwwStream
969 my (undef, $ctx) = @_;
970 delete $ctx->{qp} or return;
975 my $next_o = $ctx->{-next_o};
977 $next = qq!<a\nhref="?o=$next_o"\nrel=next>next</a>!;
979 if (my $cur_o = $ctx->{-cur_o}) {
980 $latest = qq! <a\nhref=.>latest</a>!;
982 my $o = $cur_o - ($next_o - $cur_o);
984 $prev = qq!<a\nhref="?o=$o"\nrel=prev>prev</a>!;
986 $prev = qq!<a\nhref=.\nrel=prev>prev</a>!;
989 "<hr><pre>page: $next $prev$latest</pre>";
994 my ($off) = (($ctx->{qp}->{o} || '0') =~ /(\d+)/);
995 my $opts = { offset => $off, limit => 200 };
998 my $srch = $ctx->{srch};
999 my $sres = $srch->query('', $opts);
1000 my $nr = scalar @{$sres->{msgs}};
1002 $sres = load_results($srch, $sres);
1003 walk_thread(thread_results($sres, $srch), $ctx, *acc_topic);
1005 $ctx->{-next_o} = $off+ $nr;
1006 $ctx->{-cur_o} = $off;
1007 PublicInbox::WwwStream->response($ctx, dump_topics($ctx), *index_nav);
1010 sub thread_adj_level {
1011 my ($ctx, $level) = @_;
1013 my $max = $ctx->{cur_level};
1015 return ('', '') if $max == 0; # flat output
1017 # reset existing lists
1018 my $beg = $max > 1 ? ('</ul></li>' x ($max - 1)) : '';
1019 $ctx->{cur_level} = 0;
1021 } elsif ($level == $max) { # continue existing list
1023 } elsif ($level < $max) {
1024 my $beg = $max > 1 ? ('</ul></li>' x ($max - $level)) : '';
1025 $ctx->{cur_level} = $level;
1026 ("$beg<li>", '</li>');
1027 } else { # ($level > $max) # start a new level
1028 $ctx->{cur_level} = $level;
1029 my $beg = ($max ? '<li>' : '') . '<ul><li>';
1034 sub ghost_index_entry {
1035 my ($ctx, $level, $node) = @_;
1036 my ($beg, $end) = thread_adj_level($ctx, $level);
1037 $beg . '<pre>'. ghost_parent($ctx->{-upfx}, $node->{id})