1 # Copyright (C) 2014, Eric Wong <normalperson@yhbt.net> and all contributors
2 # License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
3 package PublicInbox::View;
6 use URI::Escape qw/uri_escape/;
7 use CGI qw/escapeHTML/;
8 use Encode qw/decode encode/;
9 use Encode::MIME::Header;
11 # only one public function:
13 my ($class, $mime, $full_pfx) = @_;
15 headers_to_html_header($mime) .
16 multipart_text_as_html($mime, $full_pfx) .
20 # only private functions below.
22 sub multipart_text_as_html {
23 my ($mime, $full_pfx) = @_;
27 # scan through all parts, looking for displayable text
28 $mime->walk_parts(sub {
30 return if $part->subparts; # walk_parts already recurses
32 my $fn = $part->filename;
35 defined($fn) or $fn = "part #" . ($part_nr + 1);
36 $rv .= add_filename_line($fn);
39 if (defined $full_pfx) {
40 $rv .= add_text_body_short($part, $part_nr,
43 $rv .= add_text_body_full($part, $part_nr);
45 $rv .= "\n" unless $rv =~ /\n\z/s;
51 sub add_filename_line {
57 $pad x= ($len/2) if ($len > 0);
58 "$pad " . escapeHTML($fn) . " $pad\n";
61 sub add_text_body_short {
62 my ($part, $part_nr, $full_pfx) = @_;
64 my $s = escapeHTML($part->body);
65 $s =~ s!^((?:(?:>[^\n]+)\n)+)!
67 my @lines = split(/\n/, $cur);
69 # show a short snippet of quoted text
70 $cur = join(' ', @lines);
73 my @sum = split(/\s+/, $cur);
76 $cur .= shift(@sum) . ' ';
77 } while (@sum && length($cur) < 68);
79 "> <<a href=${full_pfx}#q${part_nr}_" . $n++ .
88 sub add_text_body_full {
89 my ($part, $part_nr) = @_;
91 my $s = escapeHTML($part->body);
92 $s =~ s!^((?:(?:>[^\n]+)\n)+)!
94 my @lines = split(/\n/, $cur);
96 "<a name=q${part_nr}_" . $n++ . ">$cur</a>";
104 sub trim_message_id {
107 my $html = escapeHTML($mid);
108 my $href = escapeHTML(uri_escape($mid));
113 sub headers_to_html_header {
118 foreach my $h (qw(From To Cc Subject Date)) {
119 my $v = $simple->header($h);
121 $v = decode("MIME-Header", $v);
122 $v = encode("utf8", $v);
127 if ($h eq "From" || $h eq "Subject") {
132 my $mid = $simple->header('Message-ID');
134 my ($html, $href) = trim_message_id($mid);
135 $rv .= "Message-ID: <a href=$href.html>$html</a> ";
136 $rv .= "(<a href=$href.txt>raw message</a>)\n";
139 my $irp = $simple->header('In-Reply-To');
141 my ($html, $href) = trim_message_id($irp);
142 $rv .= "In-Reply-To: <a href=$href.html>$html</a>\n";
146 return ("<html><head><title>".
147 join(' - ', @title) .
148 '</title></head><body><pre style="white-space:pre-wrap">' .