1 #!/usr/bin/env perl
2 
3 use open ":std", ":encoding(UTF-8)";
4 use utf8;
5 use strict;
6 use warnings;
7 use v5.32;
8 
9 my $outdir = $ENV{'OUTDIR'};
10 die 'Set $OUTDIR' unless defined $outdir;
11 mkdir $outdir;
12 
13 my $hdr = do {
14 	local $/ = undef;
15 	open my $fh, "<", "head.html"
16 	    or die "can't open head.html: $!";
17 	<$fh>;
18 };
19 
20 my $foot = do {
21 	local $/ = undef;
22 	open my $fh, "<", "foot.html"
23 	    or die "can't open foot.html: $!";
24 	<$fh>;
25 };
26 
27 my $logo = <<EOF;
28 <img srcset='/got-tiny.png, /got-tiny@2x.png 2x'
29      src='/got-tiny.png'
30      alt='"GOT", but the "O" is a cute, smiling sun' />
31 EOF
32 
33 sub san {
34 	my $str = shift;
35 	$str =~ s/&/\&amp;/g;
36 	$str =~ s/</\&lt;/g;
37 	$str =~ s/>/\&gt;/g;
38 	return $str;
39 }
40 
41 my $tid;
42 while (<>) {
43 	chomp;
44 	say; # continue the pipeline
45 
46 	m/^([^ ]+) <([^>]+)> (.+)(\d{4}-\d{2}-\d{2} \d{2}:\d{2}) <([^>]+)> (.*)/;
47 	die "can't parse: $_" unless defined $1;
48 	my ($fname, $mid, $indent, $date, $from, $subj) = ($1, $2, $3, $4, $5, $6);
49 	$subj = san($subj);
50 	$subj =~ s/\s+/ /g;
51 	$subj =~ s/\s+$//;
52 
53 	$mid =~ s,_,__,g;
54 	$mid =~ s,/,_,g;
55 
56 	chomp($mid);
57 
58 	next if -f "$outdir/$mid.html";
59 
60 	my $level = length($indent) - 1;
61 	$level = 10 if $indent =~ m/\.\.\d{2}\.\./;
62 
63 	$tid = $mid if $level == 0;
64 
65 	my $dest = "$outdir/$mid.html";
66 	open(my $fh, '>', "$dest") or die "can't open $dest: $!";
67 
68 	say $fh $hdr =~ s/TITLE/$subj/r;
69 
70 	open(my $mshow, "-|", "mshow", "-nNA", "text/plain", $fname)
71 	    or die "can't exec mshow: $!";
72 
73 	print $fh "<header class='mail-header'>";
74 	print $fh "<p>";
75 	print $fh $logo;
76 	print $fh "<a href='/'>← Back to the index</a>";
77 	print $fh " or ";
78 	print $fh "<a href='/thread/$tid.html#$mid'>→ go to the thread</a>.";
79 	print $fh "</p>";
80 	print $fh "<dl>";
81 	while (<$mshow>) {
82 		chomp;
83 		last if /^$/;
84 		my ($h, $v) = m/^([-A-Za-z]+): (.*)/;
85 		die "bogus line? $fname : $_" unless (defined $h and defined $v);
86 
87 		# drop the (1 day ago) string
88 		$v =~ s/\(.*\)//g if ($h eq "Date");
89 
90 		print $fh "<dt>", san($h), ":</dt>";
91 		print $fh "<dd>", san($v), "</dd>";
92 	}
93 	print $fh "</dl></header>";
94 
95 	my $body = do {
96 		local $/ = undef;
97 		<$mshow>;
98 	};
99 
100 	print $fh "<pre>";
101 	# print $fh san($_) while <>;
102 	print $fh san($body // "");
103 	print $fh "</pre>";
104 
105 	print $fh $foot;
106 
107 	close($mshow);
108 	close($fh);
109 
110 	# exit(0);
111 }