# Copyright (C) 2014-2015 all contributors # License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt) # # Used for displaying the HTML web interface. # See Documentation/design_www.txt for this. package PublicInbox::View; use strict; use warnings; 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 mid_escape/; use PublicInbox::MsgIter; use PublicInbox::Address; use PublicInbox::WwwStream; require POSIX; use constant INDENT => ' '; use constant TCHILD => '` '; sub th_pfx ($) { $_[0] == 0 ? '' : TCHILD }; # public functions: (unstable) sub msg_html { my ($ctx, $mime) = @_; my $hdr = $mime->header_obj; my $tip = _msg_html_prepare($hdr, $ctx); PublicInbox::WwwStream->response($ctx, 200, sub { my ($nr, undef) = @_; if ($nr == 1) { $tip . multipart_text_as_html($mime, '') . '
' . html_footer($hdr, 1, $ctx) . '' . msg_reply($ctx, $hdr) }; } else { undef } }); } # /$INBOX/$MESSAGE_ID/#R sub msg_reply { my ($ctx, $hdr) = @_; my $se_url = 'https://kernel.org/pub/software/scm/git/docs/git-send-email.html'; my $p_url = 'https://en.wikipedia.org/wiki/Posting_style#Interleaved_style'; my $info = ''; if (my $url = $ctx->{-inbox}->{infourl}) { $url = PublicInbox::Hval::prurl($ctx->{env}, $url); $info = qq(\n List information: $url\n); } my ($arg, $link) = mailto_arg_link($hdr); push @$arg, '/path/to/YOUR_REPLY'; $arg = ascii_html(join(" \\\n ", '', @$arg)); <
Reply instructions: You may reply publically to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: $p_url $info * Reply to all the recipients using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email$arg $se_url * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkEOF } sub in_reply_to { my ($hdr) = @_; my $irt = $hdr->header_raw('In-Reply-To'); return mid_clean($irt) if defined $irt && $irt ne ''; my $refs = $hdr->header_raw('References'); if ($refs && $refs =~ /<([^>]+)>\s*\z/s) { return $1; } undef; } sub _hdr_names ($$) { my ($hdr, $field) = @_; my $val = $hdr->header($field) or return ''; ascii_html(join(', ', PublicInbox::Address::names($val))); } sub nr_to_s ($$$) { my ($nr, $singular, $plural) = @_; return "0 $plural" if $nr == 0; $nr == 1 ? "$nr $singular" : "$nr $plural"; } # this is already inside a
sub index_entry { my ($mime, $ctx, $more) = @_; my $srch = $ctx->{srch}; my $hdr = $mime->header_obj; my $subj = $hdr->header('Subject'); my $mid_raw = mid_clean(mid_mime($mime)); my $id = id_compress($mid_raw, 1); my $id_m = 'm'.$id; my $root_anchor = $ctx->{root_anchor} || ''; my $irt = in_reply_to($hdr); my $rv = "* "; $subj = ''.ascii_html($subj).''; $subj = "$subj" if $root_anchor eq $id_m; $rv .= $subj . "\n"; $rv .= _th_index_lite($mid_raw, $irt, $id, $ctx); my @tocc; foreach my $f (qw(To Cc)) { my $dst = _hdr_names($hdr, $f); push @tocc, "$f: $dst" if $dst ne ''; } $rv .= "From: "._hdr_names($hdr, 'From').' @ '._msg_date($hdr)." UTC"; my $upfx = $ctx->{-upfx}; my $mhref = $upfx . mid_escape($mid_raw) . '/'; $rv .= qq{ (permalink / }; $rv .= qq{raw)\n}; $rv .= ' '.join('; +', @tocc) . "\n" if @tocc; my $mapping = $ctx->{mapping}; if (!$mapping && $irt) { my $mirt = PublicInbox::Hval->new_msgid($irt); my $href = $upfx . $mirt->{href}. '/'; my $html = $mirt->as_html; $rv .= qq(In-Reply-To: <$html>\n) } $rv .= "\n"; # scan through all parts, looking for displayable text msg_iter($mime, sub { $rv .= add_text_body($mhref, $_[0]) }); # add the footer $rv .= "\n^ ". "permalink" . " raw" . " reply"; 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; $flat = "$flat"; } else { $threaded = "$threaded"; } $rv .= "\t[$flat"; $rv .= "|$threaded]"; $rv .= " $ctx->{s_nr}"; } else { $hr = $ctx->{-hr}; } $rv .= $more ? '
' : '' if $hr; $rv; } sub pad_link ($$;$) { my ($mid, $level, $s) = @_; $s ||= '...'; my $id = id_compress($mid, 1); (' 'x19).indent_for($level).th_pfx($level)."($s)\n"; } sub _th_index_lite { my ($mid_raw, $irt, $id, $ctx) = @_; my $rv = ''; my $mapping = $ctx->{mapping} or return $rv; my $pad = ' '; my ($attr, $node, $idx, $level) = @{$mapping->{$mid_raw}}; my $children = $node->{children}; my $nr_c = scalar @$children; my $nr_s = 0; my $siblings; 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->[0]; if ($idx > 0) { my $prev = $siblings->[$idx - 1]; 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]->{id}; $rv .= $pad . $mapping->{$ppmid}->[0]; } $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'); $attr =~ s!\n\z!\n!s; $attr =~ s! !!s; # no point in duplicating subject $attr =~ s!]+>([^<]+)!$1!s; # no point linking to self $rv .= "@ $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 = $children->[1]) { $rv .= $pad . $mapping->{$cn->{id}}->[0]; } } 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 = $siblings->[$idx + 2]) { $rv .= $pad . $mapping->{$nn->{id}}->[0]; } } $rv .= $pad ."$s_s, $s_c; $ctx->{s_nr}\n"; } sub walk_thread { my ($th, $ctx, $cb) = @_; my @q = map { (0, $_, -1) } @{$th->{rootset}}; while (@q) { 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, $idx) = @_; $ctx->{mapping}->{$node->{id}} = [ '', $node, $idx, $level ]; skel_dump($ctx, $level, $node); } sub thread_index_entry { my ($ctx, $level, $mime) = @_; my ($beg, $end) = thread_adj_level($ctx, $level); $beg . '
' . index_entry($mime, $ctx, 0) . '' . $end; } sub stream_thread ($$) { my ($th, $ctx) = @_; my $inbox = $ctx->{-inbox}; my $mime; my @q = map { (0, $_) } @{$th->{rootset}}; my $level; while (@q) { $level = shift @q; my $node = shift @q or next; 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); $ctx->{-title_html} = ascii_html($mime->header('Subject')); $ctx->{-html_tip} = thread_index_entry($ctx, $level, $mime); PublicInbox::WwwStream->response($ctx, 200, sub { return unless $ctx; while (@q) { $level = shift @q; my $node = shift @q or next; my $cl = $level + 1; unshift @q, map { ($cl, $_) } @{$node->{children}}; my $mid = $node->{id}; if ($mime = $inbox->msg_by_smsg($node->{smsg})) { $mime = Email::MIME->new($mime); return thread_index_entry($ctx, $level, $mime); } else { return ghost_index_entry($ctx, $level, $node); } } my $ret = join('', thread_adj_level($ctx, 0)); $ret .= ${$ctx->{dst}}; # skel $ctx = undef; $ret; }); } sub thread_html { my ($ctx) = @_; my $mid = $ctx->{mid}; my $sres = $ctx->{srch}->get_thread($mid, { asc => 1 }); my $msgs = load_results($sres); my $nr = $sres->{total}; return missing_thread($ctx) if $nr == 0; my $skel = '
'; $skel .= $nr == 1 ? 'only message in thread' : 'end of thread'; $skel .= ", back to index\n\n"; $skel .= "Thread overview: "; $skel .= $nr == 1 ? '(only message)' : "$nr+ messages"; $skel .= " (download: mbox.gz"; $skel .= " / follow: Atom feed)\n"; $skel .= "-- links below jump to the message on this page --\n"; $ctx->{-upfx} = '../../'; $ctx->{cur_level} = 0; $ctx->{dst} = \$skel; $ctx->{prev_attr} = ''; $ctx->{prev_level} = 0; $ctx->{root_anchor} = anchor_for($mid); $ctx->{seen} = {}; $ctx->{mapping} = {}; $ctx->{s_nr} = "$nr+ messages in thread"; my $th = thread_results($msgs); walk_thread($th, $ctx, *pre_thread); $skel .= ''; return stream_thread($th, $ctx) unless $ctx->{flat}; # flat display: lazy load the full message from smsg my $inbox = $ctx->{-inbox}; my $mime; while ($mime = shift @$msgs) { $mime = $inbox->msg_by_smsg($mime) and last; } return missing_thread($ctx) unless $mime; $mime = Email::MIME->new($mime); $ctx->{-title_html} = ascii_html($mime->header('Subject')); $ctx->{-html_tip} = '
'.index_entry($mime, $ctx, scalar @$msgs);
$mime = undef;
PublicInbox::WwwStream->response($ctx, 200, sub {
return unless $msgs;
while ($mime = shift @$msgs) {
$mime = $inbox->msg_by_smsg($mime) and last;
}
if ($mime) {
$mime = Email::MIME->new($mime);
return index_entry($mime, $ctx, scalar @$msgs);
}
$msgs = undef;
$skel;
});
}
sub multipart_text_as_html {
my ($mime, $upfx) = @_;
my $rv = "";
# scan through all parts, looking for displayable text
msg_iter($mime, sub {
my ($p) = @_;
$rv .= add_text_body($upfx, $p);
});
$rv;
}
sub flush_quote {
my ($s, $l, $quot) = @_;
# show everything in the full version with anchor from
# short version (see above)
my $rv = $l->linkify_1(join('', @$quot));
@$quot = ();
# we use a here to allow users to specify their own
# color for quoted text
$rv = $l->linkify_2(ascii_html($rv));
$$s .= qq() . $rv . ''
}
sub attach_link ($$$$;$) {
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);
# 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;
$desc = '' unless defined $desc;
my $sfn;
if (defined $fn && $fn =~ /\A[[:alnum:]][\w\.-]+[[:alnum:]]\z/) {
$sfn = $fn;
} elsif ($ct eq 'text/plain') {
$sfn = 'a.txt';
} else {
$sfn = 'a.bin';
}
my $ret = qq($nl);
if ($err) {
$ret .=
"[-- Warning: decoded text below may be mangled --]\n";
}
$ret .= "[-- Attachment #$idx: ";
my $ts = "Type: $ct, Size: $size bytes";
$ret .= ($desc eq '') ? "$ts --]" : "$desc --]\n[-- $ts --]";
$ret .= "\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 || 'text/plain';
my $fn = $part->filename;
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!
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 || $err) {
$s .= attach_link($upfx, $ct, $p, $fn, $err);
$s .= "\n";
}
my @quot;
my $l = PublicInbox::Linkify->new;
while (defined(my $cur = shift @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);
} else {
push @quot, $cur;
}
}
my $end = "\n";
if (@quot) {
$end = '';
flush_quote(\$s, $l, \@quot);
}
$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 {
my ($hdr, $ctx) = @_;
my $srch = $ctx->{srch} if $ctx;
my $atom = '';
my $rv = ""; # anchor for body start
if ($srch) {
$ctx->{-upfx} = '../';
}
my @title;
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);
defined($v) && ($v ne '') or next;
$v = PublicInbox::Hval->new($v);
if ($h eq 'From') {
my @n = PublicInbox::Address::names($v->raw);
$title[1] = ascii_html(join(', ', @n));
} elsif ($h eq 'Subject') {
$title[0] = $v->as_html;
if ($srch) {
$rv .= qq($h: );
$rv .= $v->as_html . "\n";
next;
}
}
$v = $v->as_html;
$v =~ s/(\@[^,]+,) /$1\n\t/g if ($h eq 'Cc' || $h eq 'To');
$rv .= "$h: $v\n";
}
$title[0] ||= '(no subject)';
$ctx->{-title_html} = join(' - ', @title);
$rv .= 'Message-ID: <' . $mid->as_html . '> ';
$rv .= "(raw)\n";
$rv .= _parent_headers($hdr, $srch);
$rv .= "\n";
}
sub thread_skel {
my ($dst, $ctx, $hdr, $tpfx) = @_;
my $srch = $ctx->{srch};
my $mid = mid_clean($hdr->header_raw('Message-ID'));
my $sres = $srch->get_thread($mid);
my $nr = $sres->{total};
my $expand = qq(expand ) .
qq(/ mbox.gz ) .
qq(/ Atom feed);
my $parent = in_reply_to($hdr);
$$dst .= "\nThread overview: ";
if ($nr <= 1) {
if (defined $parent) {
$$dst .= "($expand)\n ";
$$dst .= ghost_parent("$tpfx../", $parent) . "\n";
} else {
$$dst .= "[no followups, yet] ($expand)\n";
}
$ctx->{next_msg} = undef;
$ctx->{parent_msg} = $parent;
return;
}
$$dst .= "$nr+ messages in thread ($expand";
$$dst .= qq! / [top])\n!;
my $subj = $srch->subject_path($hdr->header('Subject'));
$ctx->{seen} = { $subj => 1 };
$ctx->{cur} = $mid;
$ctx->{prev_attr} = '';
$ctx->{prev_level} = 0;
$ctx->{dst} = $dst;
walk_thread(thread_results(load_results($sres)), $ctx, *skel_dump);
$ctx->{parent_msg} = $parent;
}
sub _parent_headers {
my ($hdr, $srch) = @_;
my $rv = '';
my $irt = in_reply_to($hdr);
if (defined $irt) {
my $v = PublicInbox::Hval->new_msgid($irt);
my $html = $v->as_html;
my $href = $v->{href};
$rv .= "In-Reply-To: <";
$rv .= "$html>\n";
}
# do not display References: if search is present,
# we show the thread skeleton at the bottom, instead.
return $rv if $srch;
my $refs = $hdr->header_raw('References');
if ($refs) {
# avoid redundant URLs wasting bandwidth
my %seen;
$seen{$irt} = 1 if defined $irt;
my @refs;
my @raw_refs = ($refs =~ /<([^>]+)>/g);
foreach my $ref (@raw_refs) {
next if $seen{$ref};
$seen{$ref} = 1;
push @refs, linkify_ref_nosrch($ref);
}
if (@refs) {
$rv .= 'References: '. join("\n\t", @refs) . "\n";
}
}
$rv;
}
sub squote_maybe ($) {
my ($val) = @_;
if ($val =~ m{([^\w@\./,\%\+\-])}) {
$val =~ s/(['!])/'\\$1'/g; # '!' for csh
return "'$val'";
}
$val;
}
sub mailto_arg_link {
my ($hdr) = @_;
my %cc; # everyone else
my $to; # this is the From address
foreach my $h (qw(From To Cc)) {
my $v = $hdr->header($h);
defined($v) && ($v ne '') or next;
my @addrs = PublicInbox::Address::emails($v);
foreach my $address (@addrs) {
my $dst = lc($address);
$cc{$dst} ||= $address;
$to ||= $dst;
}
}
my @arg;
my $subj = $hdr->header('Subject') || '';
$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 = mid_escape($mid);
delete $cc{$to};
push @arg, "--to=$to";
$to = uri_escape_utf8($to);
$subj = uri_escape_utf8($subj);
my @cc = sort values %cc;
push(@arg, map { "--cc=$_" } @cc);
my $cc = uri_escape_utf8(join(',', @cc));
my $href = "mailto:$to?In-Reply-To=$irt&Cc=${cc}&Subject=$subj";
(\@arg, ascii_html($href));
}
sub html_footer {
my ($hdr, $standalone, $ctx, $rhref) = @_;
my $srch = $ctx->{srch} if $ctx;
my $upfx = '../';
my $tpfx = '';
my $idx = $standalone ? " index" : '';
my $irt = '';
if ($idx && $srch) {
$idx .= "\n";
thread_skel(\$idx, $ctx, $hdr, $tpfx);
my ($next, $prev);
my $parent = ' ';
$next = $prev = ' ';
if (my $n = $ctx->{next_msg}) {
$n = PublicInbox::Hval->new_msgid($n)->{href};
$next = "next";
}
my $u;
my $par = $ctx->{parent_msg};
if ($par) {
$u = PublicInbox::Hval->new_msgid($par)->{href};
$u = "$upfx$u/";
}
if (my $p = $ctx->{prev_msg}) {
$prev = PublicInbox::Hval->new_msgid($p)->{href};
if ($p && $par && $p eq $par) {
$prev = "prev parent';
$parent = '';
} else {
$prev = "prev';
$parent = " parent" if $u;
}
} elsif ($u) { # unlikely
$parent = " parent";
}
$irt = "$next $prev$parent ";
} else {
$irt = '';
}
$rhref ||= '#R';
$irt .= qq(reply);
$irt .= $idx;
}
sub linkify_ref_nosrch {
my $v = PublicInbox::Hval->new_msgid($_[0]);
my $html = $v->as_html;
my $href = $v->{href};
"<$html>";
}
sub anchor_for {
my ($msgid) = @_;
'm' . id_compress($msgid, 1);
}
sub ghost_parent {
my ($upfx, $mid) = @_;
$mid = PublicInbox::Hval->new_msgid($mid);
my $href = $mid->{href};
my $html = $mid->as_html;
qq{[parent not found: <$html>]};
}
sub indent_for {
my ($level) = @_;
INDENT x ($level - 1);
}
sub load_results {
my ($sres) = @_;
[ map { $_->ensure_metadata; $_ } @{delete $sres->{msgs}} ];
}
sub msg_timestamp {
my ($hdr) = @_;
my $ts = eval { str2time($hdr->header('Date')) };
defined($ts) ? $ts : 0;
}
sub thread_results {
my ($msgs) = @_;
require PublicInbox::SearchThread;
my $th = PublicInbox::SearchThread->new($msgs);
$th->thread;
$th->order(*sort_ts);
$th
}
sub missing_thread {
my ($ctx) = @_;
require PublicInbox::ExtMsg;
PublicInbox::ExtMsg::ext_msg($ctx);
}
sub _msg_date {
my ($hdr) = @_;
my $ts = $hdr->header('X-PI-TS') || msg_timestamp($hdr);
fmt_ts($ts);
}
sub fmt_ts { POSIX::strftime('%Y-%m-%d %k:%M', gmtime($_[0])) }
sub _skel_header {
my ($ctx, $smsg, $level) = @_;
my $dst = $ctx->{dst};
my $cur = $ctx->{cur};
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;
if ($attr ne $ctx->{prev_attr} || $ctx->{prev_level} > $level) {
$ctx->{prev_attr} = $attr;
}
$ctx->{prev_level} = $level;
if ($cur) {
if ($cur eq $mid) {
delete $ctx->{cur};
$$dst .= "$d".
"$attr [this message]\n";
return;
} else {
$ctx->{prev_msg} = $mid;
}
} else {
$ctx->{next_msg} ||= $mid;
}
# 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 = $smsg->subject;
my $h = $ctx->{srch}->subject_path($s);
if ($ctx->{seen}->{$h}) {
$s = undef;
} else {
$ctx->{seen}->{$h} = 1;
$s = PublicInbox::Hval->new($s);
$s = $s->as_html;
}
my $m;
my $id = '';
my $mapping = $ctx->{mapping};
my $end = defined($s) ? "$s $f\n" : "$f\n";
if ($mapping) {
my $map = $mapping->{$mid};
$id = id_compress($mid, 1);
$m = '#m'.$id;
$map->[0] = "$d$end";
$id = "\nid=r".$id;
} else {
$m = $ctx->{-upfx}.mid_escape($mid).'/';
}
$$dst .= $d . "" . $end;
}
sub skel_dump {
my ($ctx, $level, $node) = @_;
if (my $smsg = $node->{smsg}) {
_skel_header($ctx, $smsg, $level);
} else {
my $mid = $node->{id};
my $dst = $ctx->{dst};
my $d = $ctx->{pct} ? ' [irrelevant] ' # search result
: ' [not found] ';
$d .= indent_for($level) . th_pfx($level);
my $upfx = $ctx->{-upfx};
my $m = PublicInbox::Hval->new_msgid($mid);
my $href = $upfx . $m->{href} . '/';
my $html = $m->as_html;
my $mapping = $ctx->{mapping};
my $map = $mapping->{$mid} if $mapping;
if ($map) {
my $id = id_compress($mid, 1);
$map->[0] = $d . qq{<$html>\n};
$d .= qq{<$html>\n};
} else {
$d .= qq{<$html>\n};
}
$$dst .= $d;
}
}
sub sort_ts {
[ sort {
(eval { $a->topmost->{smsg}->ts } || 0) <=>
(eval { $b->topmost->{smsg}->ts } || 0)
} @{$_[0]} ];
}
# accumulate recent topics if search is supported
# returns 200 if done, 404 if not
sub acc_topic {
my ($ctx, $level, $node) = @_;
my $srch = $ctx->{srch};
my $mid = $node->{id};
my $x = $node->{smsg} || $srch->lookup_mail($mid);
my ($subj, $ts);
my $topic;
if ($x) {
$subj = $x->subject;
$subj = $srch->subject_normalized($subj);
$ts = $x->ts;
if ($level == 0) {
$topic = [ $ts, 1, { $subj => $mid }, $subj ];
$ctx->{-cur_topic} = $topic;
push @{$ctx->{order}}, $topic;
return;
}
$topic = $ctx->{-cur_topic}; # should never be undef
$topic->[0] = $ts if $ts > $topic->[0];
$topic->[1]++;
my $seen = $topic->[2];
if (scalar(@$topic) == 3) { # parent was a ghost
push @$topic, $subj;
} elsif (!$seen->{$subj}) {
push @$topic, $level, $subj;
}
$seen->{$subj} = $mid; # latest for subject
} else { # ghost message
return if $level != 0; # ignore child ghosts
$topic = [ -666, 0, {} ];
$ctx->{-cur_topic} = $topic;
push @{$ctx->{order}}, $topic;
}
}
sub dump_topics {
my ($ctx) = @_;
my $order = delete $ctx->{order}; # [ ts, subj1, subj2, subj3, ... ]
if (!@$order) {
$ctx->{-html_tip} = '[No topics in range]
';
return 404;
}
my @out;
# sort by recency, this allows new posts to "bump" old topics...
foreach my $topic (sort { $b->[0] <=> $a->[0] } @$order) {
my ($ts, $n, $seen, $top, @ex) = @$topic;
@$topic = ();
next unless defined $top; # ghost topic
my $mid = delete $seen->{$top};
my $href = mid_escape($mid);
$top = PublicInbox::Hval->new($top)->as_html;
$ts = fmt_ts($ts);
# $n isn't the total number of posts on the topic,
# just the number of posts in the current results window
my $anchor;
if ($n == 1) {
$n = '';
$anchor = '#u'; # top of only message
} else {
$n = " ($n+ messages)";
$anchor = '#t'; # thread skeleton
}
my $mbox = qq(mbox.gz);
my $atom = qq(Atom);
my $s = "$top\n" .
" $ts UTC $n - $mbox / $atom\n";
for (my $i = 0; $i < scalar(@ex); $i += 2) {
my $level = $ex[$i];
my $sub = $ex[$i + 1];
$mid = delete $seen->{$sub};
$sub = PublicInbox::Hval->new($sub)->as_html;
$href = mid_escape($mid);
$s .= indent_for($level) . TCHILD;
$s .= "$sub\n";
}
push @out, $s;
}
$ctx->{-html_tip} = '' . join("\n", @out) . '
';
200;
}
sub index_nav { # callback for WwwStream
my (undef, $ctx) = @_;
delete $ctx->{qp} or return;
my ($next, $prev);
$next = $prev = ' ';
my $latest = '';
my $next_o = $ctx->{-next_o};
if ($next_o) {
$next = qq!next!;
}
if (my $cur_o = $ctx->{-cur_o}) {
$latest = qq! latest!;
my $o = $cur_o - ($next_o - $cur_o);
if ($o > 0) {
$prev = qq!prev!;
} elsif ($o == 0) {
$prev = qq!prev!;
}
}
"
page: $next $prev$latest
";
}
sub index_topics {
my ($ctx) = @_;
my ($off) = (($ctx->{qp}->{o} || '0') =~ /(\d+)/);
my $opts = { offset => $off, limit => 200 };
$ctx->{order} = [];
my $sres = $ctx->{srch}->query('', $opts);
my $nr = scalar @{$sres->{msgs}};
if ($nr) {
$sres = load_results($sres);
walk_thread(thread_results($sres), $ctx, *acc_topic);
}
$ctx->{-next_o} = $off+ $nr;
$ctx->{-cur_o} = $off;
PublicInbox::WwwStream->response($ctx, dump_topics($ctx), *index_nav);
}
sub thread_adj_level {
my ($ctx, $level) = @_;
my $max = $ctx->{cur_level};
if ($level <= 0) {
return ('', '') if $max == 0; # flat output
# reset existing lists
my $beg = $max > 1 ? ('' x ($max - 1)) : '';
$ctx->{cur_level} = 0;
("$beg", '');
} elsif ($level == $max) { # continue existing list
qw(
);
} elsif ($level < $max) {
my $beg = $max > 1 ? ('' x ($max - $level)) : '';
$ctx->{cur_level} = $level;
("$beg", ' ');
} else { # ($level > $max) # start a new level
$ctx->{cur_level} = $level;
my $beg = ($max ? '' : '') . '- ';
($beg, '
');
}
}
sub ghost_index_entry {
my ($ctx, $level, $node) = @_;
my ($beg, $end) = thread_adj_level($ctx, $level);
$beg . '
'. ghost_parent($ctx->{-upfx}, $node->{id})
. '
' . $end;
}
1;