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 $tfh; # thread file handle
14 my $pfh; # page file handle
15 my $page = -1;
16 my $threads_seen = 0;
17 my $last_level = 0;
18 my $entries = 0;
19 my $entries_per_page = 100;
20 
21 my $logo = <<EOF;
22 <img srcset='/got-tiny.png, /got-tiny@2x.png 2x'
23      src='/got-tiny.png'
24      width='64' height='39'
25      alt='"GOT", but the "O" is a cute, smiling sun' />
26 EOF
27 
28 sub san {
29 	my $str = shift;
30 	$str =~ s/&/\&amp;/g;
31 	$str =~ s/</\&lt;/g;
32 	$str =~ s/>/\&gt;/g;
33 	return $str;
34 }
35 
36 sub initpage {
37 	my ($fh, $title) = @_;
38 	open(my $hdr, '<', 'head.html')
39 	    or die "can't open head.html: $!";
40 	while (<$hdr>) {
41 		s/TITLE/$title/;
42 		print $fh $_;
43 	}
44 }
45 
46 sub endpage {
47 	my $fh = shift;
48 	open(my $foot, '<', 'foot.html')
49 	    or die "can't open foot.html: $!";
50 	print $fh $_ while <$foot>;
51 }
52 
53 sub pagename {
54 	my $i = shift;
55 	return $i == 0 && "index.html" || "$i.html";
56 }
57 
58 sub nextfile {
59 	$entries = 0;
60 	close($pfh) if defined $pfh;
61 	$page += 1;
62 	my $path = pagename($page);
63 	open($pfh, '>', $path)
64 	    or die "can't open $path: $!";
65 
66 	my $title = "Game of Trees Mail Archive";
67 	$title .= " | page $page" if $page != 0;
68 	initpage($pfh, $title);
69 
70 	my $hdr = <<EOF;
71 <header class='index-header'>
72   <a href="https://gameoftrees.org" target="_blank">
73     <img src='/got.png'
74          srcset='/got.png, /got@2x.png 2x'
75          alt='"GOT" where the "O" is a cute smiling sun.' />
76   </a>
77   <h1>$title</h1>
78 </header>
79 <main>
80 EOF
81 	say $pfh $hdr;
82 }
83 
84 sub fixfiles {
85 	close($pfh);
86 
87 	my ($first, $last) = (pagename(0), pagename($page));
88 
89 	for (my $i = 0; $i <= $page; $i++) {
90 		my $path = pagename($i);
91 
92 		open(my $pfh, '>>', $path)
93 		    or die "can't open $path for append: $!";
94 
95 		if ($page > 1) {
96 			my ($next, $prev) = (pagename($i+1), pagename($i-1));
97 
98 			say $pfh "<nav class='next-prev'><!-- $pfh -->";
99 			say $pfh "<a href='$first'>First</a>" if $i > 1;
100 			say $pfh "<a href='$prev'>Prev</a>" if $i > 0;
101 			say $pfh "<a href='$next'>Next</a>" if $i < $page;
102 			say $pfh "<a href='$last'>Last</a>" if $i < $page - 1;
103 			say $pfh "</nav>";
104 		}
105 
106 		say $pfh "</main>";
107 		endpage($pfh);
108 		close($pfh);
109 		rename $path, "$outdir/$path";
110 	}
111 }
112 
113 sub nextthread {
114 	endthread() if defined($tfh);
115 	my ($mid, $subj) = @_;
116 	my $dest = "$outdir/thread/$mid.html";
117 	open($tfh, '>', $dest) or die "can't open $dest: $!";
118 	initpage($tfh, $subj);
119 
120 	print $tfh "<header class='mail-header'>";
121 	print $tfh "<p>";
122 	print $tfh $logo;
123 	print $tfh "<a href='/'>‹ Back to the index</a>";
124 	print $tfh "</p>";
125 	print $tfh "<dl><dt>Thread:</dt><dd>$subj</dd></dl>";
126 	print $tfh "</header>\n";
127 	# print $tfh "<div class='thread'><ul class='mails'>\n";
128 }
129 
130 sub endthread {
131 	say $tfh "</ul></li>" x $last_level;
132 	say $tfh "</ul></div>\n";
133 	endpage($tfh);
134 	close($tfh);
135 
136 	$last_level = 0;
137 }
138 
139 sub entry_raw {
140 	my ($fh, $sep, $mid, $level, $date, $from, $subj) = @_;
141 	my $new_thread = $level == 0;
142 
143 	say $fh "</ul>\n</li>" x ($last_level - $level) if $last_level > $level;
144 	say $fh "</ul>\n</div>$sep" if $threads_seen && $new_thread;
145 
146 	if ($new_thread) {
147 		# don't break threads over multiple pages!
148 		nextfile if $entries >= $entries_per_page && $fh != $tfh;
149 
150 		nextthread($mid, $subj);
151 		say $fh "<div class='thread'>";
152 	}
153 
154 	if ($last_level < $level) {
155 		say $fh "<li>\n<ul>";
156 	} elsif ($last_level == 0) {
157 		say $fh "<ul class='mails'>";
158 	}
159 
160 	print $fh "<li id='$mid' class='mail'>";
161 	print $fh "<p class='mail-meta'>";
162 	print $fh "<time>$date</time> ";
163 	print $fh "<span class='from'>$from</span>";
164 	print $fh "<span class='colon'>:</span>";
165 	if ($fh != $tfh && $level == 0) {
166 		print $fh " (<a href='/thread/$mid.html'>thread</a>)";
167 	}
168 	print $fh "</p>";
169 	print $fh "<p class='subject'>";
170 	print $fh "<a href='/mail/$mid.html'>$subj</a>";
171 	print $fh "</p>";
172 	print $fh "</li>\n";
173 }
174 
175 sub entry {
176 	$entries++;
177 	entry_raw($pfh, "<hr />", @_);
178 	entry_raw($tfh, "", @_);
179 }
180 
181 nextfile();
182 
183 while (<>) {
184 	chomp;
185 	m/^[^ ]+ <([^>]+)> (.+)(\d{4}-\d{2}-\d{2} \d{2}:\d{2}) <([^>]+)> (.*)/;
186 	die "woops; $_\n" unless defined $1;
187 
188 	my ($mid, $indent, $date, $from, $subj) = ($1, $2, $3, $4, $5);
189 	$from =~ s/\s+$//;
190 	$from = san($from);
191 	$subj = san($subj);
192 
193 	my $level = length($indent) - 1;
194 	$level = 10 if $indent =~ m/\.\.\d{2}\.\./;
195 
196 	$mid =~ s,_,__,g;
197 	$mid =~ s,/,_,g;
198 
199 	$subj =~ s/\s+/ /g;
200 	$subj =~ s/\s+$//g;
201 
202 	entry($mid, $level, $date, $from, $subj);
203 	$last_level = $level;
204 	$threads_seen = 1;
205 }
206 
207 if ($threads_seen) {
208 	say $pfh "</ul></li>" x $last_level;
209 	say $pfh "</ul></div>";
210 	endthread();
211 }
212 
213 fixfiles();