[PATCH 1/2] www: a note .onion URLs require the usage of Tor

[Eric Wong <e@80x24.org>]

Not everybody knows what .onion URLs are, so refer them to Tor.
---
 lib/PublicInbox/WwwStream.pm | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/lib/PublicInbox/WwwStream.pm b/lib/PublicInbox/WwwStream.pm
index bdc8048..de457b4 100644
--- a/lib/PublicInbox/WwwStream.pm
+++ b/lib/PublicInbox/WwwStream.pm
@@ -8,6 +8,7 @@ use warnings;
 use PublicInbox::Hval qw(ascii_html);
 use URI;
 use constant PI_URL => 'https://public-inbox.org/';
+our $TOR_URL = 'https://www.torproject.org/';
 
 sub close {}
 
@@ -68,8 +69,10 @@ sub _html_end {
 	chop $http;
 	my %seen = ( $http => 1 );
 	my @urls = ($http);
+	my $need_tor;
 	foreach my $u (@{$obj->cloneurl}) {
 		next if $seen{$u};
+		$need_tor = 1 if $u =~ m!\A[^:]+://\w+\.onion/!;
 		$seen{$u} = 1;
 		push @urls, $u =~ /\Ahttps?:/ ? qq(<a\nhref="$u">$u</a>) : $u;
 	}
@@ -79,12 +82,17 @@ sub _html_end {
 		$urls .= "\n" .
 			join("\n", map { "\tgit clone --mirror $_" } @urls);
 	}
+
+	if ($need_tor) {
+		$urls .= "\n note: .onion URLs require Tor: ";
+		$urls .= qq[<a\nhref="$TOR_URL">$TOR_URL</a>];
+	}
 	my $url = PublicInbox::Hval::prurl($ctx->{env}, PI_URL);
-	'<hr><pre>'.join("\n",
-		'- ' . $desc,
+	'<hr><pre>'.join("\n\n",
+		$desc,
 		$urls,
 		'Served with public-inbox: '.
-		qq(git clone <a\nhref="$url">$url</a> public-inbox),
+		qq(git clone <a\nhref="$url">$url</a> public-inbox)
 	).'</pre></body></html>';
 }
 
-- 
EW