use fields qw(socket target);
use YAML qw/LoadFile/;
-my $debug = 1;
+my $debug = 0;
my $config = {
yaml_dir => './yaml/',
upstream_ldap => 'ldap.ffzg.hr',
upstream_ssl => 1,
overlay_prefix => 'ffzg-',
- log_file => 'log',
+# log_file => 'log/ldap-rewrite.log',
};
my $log_fh;
sub log {
+ return unless $config->{log_file};
+
if ( ! $log_fh ) {
open($log_fh, '>>', $config->{log_file}) || die "can't open ", $config->{log_file},": $!";
print $log_fh "# " . time;
# read from client
asn_read($clientsocket, my $reqpdu);
if ( ! $reqpdu ) {
- warn "WARNING no reqpdu\n";
- return 1;
+ warn "client closed connection\n";
+ return 0;
}
$reqpdu = log_request($reqpdu);
my $ready;
my $sel = IO::Select->new($serversocket);
for( $ready = 1 ; $ready ; $ready = $sel->can_read(0)) {
- asn_read($serversocket, my $respdu) or return 1;
+ asn_read($serversocket, my $respdu);
+ if ( ! $respdu ) {
+ warn "server closed connection\n";
+ return 0;
+ }
$respdu = log_response($respdu);
# and send the result to the client
- print $clientsocket $respdu;
+ print $clientsocket $respdu || return 0;
}
- return 0;
+ return 1;
}
sub log_request {
my $pdu=shift;
+ die "empty pdu" unless $pdu;
+
# print '-' x 80,"\n";
# print "Request ASN 1:\n";
# Convert::ASN1::asn_hexdump(\*STDOUT,$pdu);
sub log_response {
my $pdu=shift;
+ die "empty pdu" unless $pdu;
# print '-' x 80,"\n";
# print "Response ASN 1:\n";
return $pdu;
}
-sub run_proxy {
- my $listenersock = shift;
- my $targetsock=shift;
-
- die "Could not create listener socket: $!\n" unless $listenersock;
- die "Could not create connection to server: $!\n" unless $targetsock;
-
- my $sel = IO::Select->new($listenersock);
- my %Handlers;
- while (my @ready = $sel->can_read) {
- foreach my $fh (@ready) {
- if ($fh == $listenersock) {
- # let's create a new socket
- my $psock = $listenersock->accept;
- $sel->add($psock);
- } else {
- my $result = handle($fh,$targetsock);
- if ($result) {
- # we have finished with the socket
- $sel->remove($fh);
- $fh->close;
- delete $Handlers{*$fh};
- }
- }
- }
- }
-}
-
my $listenersock = IO::Socket::INET->new(
Listen => 5,
LocalAddr => $config->{listen},
) || die "can't open listen socket: $!";
+our $server_sock;
+
+sub connect_to_server {
+ my $sock;
+ if ( $config->{upstream_ssl} ) {
+ $sock = IO::Socket::SSL->new( $config->{upstream_ldap} . ':ldaps' );
+ } else {
+ $sock = IO::Socket::INET->new(
+ Proto => 'tcp',
+ PeerAddr => $config->{upstream_ldap},
+ PeerPort => 389,
+ );
+ }
+ die "can't open ", $config->{upstream_ldap}, " $!\n" unless $sock;
+ warn "## connected to ", $sock->peerhost, ":", $sock->peerport, "\n";
+ return $sock;
+}
-my $targetsock = $config->{upstream_ssl}
- ? IO::Socket::INET->new(
- Proto => 'tcp',
- PeerAddr => $config->{upstream_ldap},
- PeerPort => 389,
- )
- : IO::Socket::SSL->new( $config->{upstream_ldap} . ':ldaps')
- || die "can't open upstream socket: $!";
-
-run_proxy($listenersock,$targetsock);
+my $sel = IO::Select->new($listenersock);
+while (my @ready = $sel->can_read) {
+ foreach my $fh (@ready) {
+ if ($fh == $listenersock) {
+ # let's create a new socket
+ my $psock = $listenersock->accept;
+ $sel->add($psock);
+ warn "## add $psock " . time;
+ } else {
+ $server_sock->{$fh} ||= connect_to_server;
+ if ( ! handle($fh,$server_sock->{$fh}) ) {
+ warn "## remove $fh " . time;
+ $sel->remove($server_sock->{$fh});
+ $server_sock->{$fh}->close;
+ delete $server_sock->{$fh};
+ # we have finished with the socket
+ $sel->remove($fh);
+ $fh->close;
+ }
+ }
+ }
+}
1;