No ext_urls

[public-inbox.git] / lib / PublicInbox / Linkify.pm

diff --git a/lib/PublicInbox/Linkify.pm b/lib/PublicInbox/Linkify.pm
index 175f8d724dbb25e2d8e04f89a2a1792373d83b3c..306a57e77c73d03b99a4ddfd99f98f6119e457db 100644 (file)
--- a/lib/PublicInbox/Linkify.pm
+++ b/lib/PublicInbox/Linkify.pm
@@ -1,4 +1,4 @@
-# Copyright (C) 2014-2019 all contributors <meta@public-inbox.org>
+# Copyright (C) all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
 # two-step linkification.
@@ -11,12 +11,13 @@
 # Maybe this could be done more efficiently...
 package PublicInbox::Linkify;
 use strict;
-use warnings;
-use Digest::SHA qw/sha1_hex/;
-use PublicInbox::Hval qw(ascii_html);
+use v5.10.1;
+use PublicInbox::SHA qw(sha1_hex);
+use PublicInbox::Hval qw(ascii_html mid_href);
+use PublicInbox::MID qw($MID_EXTRACT);
 
 my $SALT = rand;
-my $LINK_RE = qr{([\('!])?\b((?:ftps?|https?|nntps?|gopher)://
+my $LINK_RE = qr{([\('!])?\b((?:ftps?|https?|nntps?|imaps?|s?news|gopher)://
                 [\@:\w\.-]+(?:/
                 (?:[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%]*)
                 (?:\?[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%]+)?
@@ -67,26 +68,57 @@ sub linkify_1 {
                # salt this, as this could be exploited to show
                # links in the HTML which don't show up in the raw mail.
                my $key = sha1_hex($url . $SALT);
-
+               $key =~ tr/0-9/A-J/; # no digits for YAML highlight
                $_[0]->{$key} = $url;
-               $beg . 'PI-LINK-'. $key . $end;
-       ^ge;
+               $beg . 'LINKIFY' . $key . $end;
+       ^geo;
        $_[1];
 }
 
 sub linkify_2 {
-       # Added "PI-LINK-" prefix to avoid false-positives on git commits
-       $_[1] =~ s!\bPI-LINK-([a-f0-9]{40})\b!
+       # Added "LINKIFY" prefix to avoid false-positives on git commits
+       $_[1] =~ s!\bLINKIFY([a-fA-J]{40})\b!
                my $key = $1;
                my $url = $_[0]->{$key};
                if (defined $url) {
                        "<a\nhref=\"$url\">$url</a>";
-               } else {
-                       # false positive or somebody tried to mess with us
-                       $key;
+               } else { # false positive or somebody tried to mess with us
+                       'LINKIFY'.$key;
                }
        !ge;
        $_[1];
 }
 
+# single pass linkification of <Message-ID@example.com> within $str
+# with $pfx being the URL prefix
+sub linkify_mids {
+       my ($self, $pfx, $str, $raw) = @_;
+       $$str =~ s!$MID_EXTRACT!
+               my $mid = $1;
+               my $html = ascii_html($mid);
+               my $href = mid_href($mid);
+
+               # salt this, as this could be exploited to show
+               # links in the HTML which don't show up in the raw mail.
+               my $key = sha1_hex($html . $SALT);
+               $key =~ tr/0-9/A-J/;
+               my $repl = qq(&lt;<a\nhref="$pfx/$href/">$html</a>&gt;);
+               $repl .= qq{ (<a\nhref="$pfx/$href/raw">raw</a>)} if $raw;
+               $self->{$key} = $repl;
+               'LINKIFY'.$key;
+               !ge;
+       $$str = ascii_html($$str);
+       $$str =~ s!\bLINKIFY([a-fA-J]{40})\b!
+               my $key = $1;
+               my $repl = $_[0]->{$key};
+               if (defined $repl) {
+                       $repl;
+               } else { # false positive or somebody tried to mess with us
+                       'LINKIFY'.$key;
+               }
+       !ge;
+}
+
+sub to_html { linkify_2($_[0], ascii_html(linkify_1(@_))) }
+
 1;