move userlink to IkiWiki.pm

I have a plugin that needs to use userlink.

1 files changed, 28 insertions, 0 deletions

diff --git a/IkiWiki.pm b/IkiWiki.pm
index 46060c1b2..15402211f 100644
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -609,6 +609,34 @@ sub htmllink ($$$;@) { #{{{
 	return "<a href=\"$bestlink\"@attrs>$linktext</a>";
 } #}}}
 
+sub userlink ($) { #{{{
+	my $user=shift;
+
+	eval q{use CGI 'escapeHTML'};
+	error($@) if $@;
+	if ($user =~ m!^https?://! &&
+	    eval q{use Net::OpenID::VerifiedIdentity; 1} && !$@) {
+		# Munge user-urls, as used by eg, OpenID.
+		my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user);
+		my $display=$oid->display;
+		# Convert "user.somehost.com" to "user [somehost.com]".
+		if ($display !~ /\[/) {
+			$display=~s/^(.*?)\.([^.]+\.[a-z]+)$/$1 [$2]/;
+		}
+		# Convert "http://somehost.com/user" to "user [somehost.com]".
+		if ($display !~ /\[/) {
+			$display=~s/^https?:\/\/(.+)\/([^\/]+)$/$2 [$1]/;
+		}
+		$display=~s!^https?://!!; # make sure this is removed
+		return "<a href=\"$user\">".escapeHTML($display)."</a>";
+	}
+	else {
+		return htmllink("", "", escapeHTML(
+			length $config{userdir} ? $config{userdir}."/".$user : $user
+		), noimageinline => 1);
+	}
+} #}}}
+
 sub htmlize ($$$) { #{{{
 	my $page=shift;
 	my $type=shift;