-my $protocol = $r->param("protocol");
-my $host = $r->param("host");
-my $port = $r->param("port");
-my $dbname = $r->param("dbname");
+my $protocol = utf8paramTrim($r, "protocol");
+my $host = utf8paramTrim($r, "host");
+my $port = utf8paramTrim($r, "port");
+my $dbname = utf8paramTrim($r, "dbname");
+my $title = utf8paramTrim($r, "title");
+
+if ((!defined $port || $port eq "") &&
+ (defined $protocol && $protocol ne "")) {
+ # Port-guessing based on defaults for each protocol
+ $port = $protocol eq "Z39.50" ? 210 : 80;
+ warn "guessed port $port";
+ &utf8param($r, port => $port);
+}
+