-my $protocol = $r->param("protocol");
-my $host = $r->param("host");
-my $port = $r->param("port");
-my $dbname = $r->param("dbname");
+my $protocol = utf8param($r, "protocol");
+my $host = utf8param($r, "host");
+my $port = utf8param($r, "port");
+my $dbname = utf8param($r, "dbname");