X-Git-Url: http://git.rot13.org/?p=virtual-ldap;a=blobdiff_plain;f=bin%2Fldap-rewrite.pl;h=cdc9534b1e0b2e2121e8fba030fec40ebed39c5c;hp=a6eff6e7791e02ba877f671830ef4ea1e7df8837;hb=cdf5334694219b628813a512b37f3115535907a1;hpb=24a2710e5e18cee3bbe8e2a3caf00bb7349adcd1

diff --git a/bin/ldap-rewrite.pl b/bin/ldap-rewrite.pl
index a6eff6e..cdc9534 100755
--- a/bin/ldap-rewrite.pl
+++ b/bin/ldap-rewrite.pl
@@ -3,6 +3,12 @@
 # This program is free software; you can redistribute it and/or
 # modify it under the same terms as Perl itself.
 
+# It's modified by Dobrica Pavlinusic <dpavlin@rot13.org> to include following:
+#
+# * rewrite LDAP bind request cn: username@domain.com -> uid=username,dc=domain,dc=com
+# * rewrite search responses:
+# ** expand key:value pairs from hrEduPersonUniqueNumber into hrEduPersonUniqueNumber_key
+# ** augment response with yaml/dn.yaml data (for external data import)
 
 use strict;
 use warnings;
@@ -14,13 +20,15 @@ use warnings;
 use Data::Dump qw/dump/;
 use Convert::ASN1 qw(asn_read);
 use Net::LDAP::ASN qw(LDAPRequest LDAPResponse);
-our $VERSION = '0.2';
+our $VERSION = '0.3';
 use fields qw(socket target);
 use YAML qw/LoadFile/;
 
+my $debug = 1;
+
 my $config = {
 	yaml_dir => './yaml/',
-	listen => 'localhost:1389',
+	listen => shift @ARGV || 'localhost:1389',
 	upstream_ldap => 'ldap.ffzg.hr',
 	upstream_ssl => 1,
 	overlay_prefix => 'ffzg-',
@@ -31,7 +39,10 @@ my $config = {
 my $log_fh;
 
 sub log {
-	open($log_fh, '>', $config->{log_file}) || die "can't open ", $config->{log_file},": $!";
+	if ( ! $log_fh ) {
+		open($log_fh, '>>', $config->{log_file}) || die "can't open ", $config->{log_file},": $!";
+		print $log_fh "# " . time;
+	}
 	$log_fh->autoflush(1);
 	print $log_fh join("\n", @_),"\n";
 }
@@ -53,9 +64,11 @@ sub handle {
 
 	# read from client
 	asn_read($clientsocket, my $reqpdu);
-	log_request($reqpdu);
-
-	return 1 unless $reqpdu;
+	if ( ! $reqpdu ) {
+		warn "WARNING no reqpdu\n";
+		return 1;
+	}
+	$reqpdu = log_request($reqpdu);
 
 	# send to server
 	print $serversocket $reqpdu or die "Could not send PDU to server\n ";
@@ -77,26 +90,40 @@ sub handle {
 sub log_request {
 	my $pdu=shift;
 
-	print '-' x 80,"\n";
-	print "Request ASN 1:\n";
-	Convert::ASN1::asn_hexdump(\*STDOUT,$pdu);
-	print "Request Perl:\n";
+#	print '-' x 80,"\n";
+#	print "Request ASN 1:\n";
+#	Convert::ASN1::asn_hexdump(\*STDOUT,$pdu);
+#	print "Request Perl:\n";
 	my $request = $LDAPRequest->decode($pdu);
-	print dump($request);
+	warn "## request = ",dump($request);
+
+	if ( defined $request->{bindRequest} ) {
+		if ( $request->{bindRequest}->{name} =~ m{@} ) {
+			my $old = $request->{bindRequest}->{name};
+			$request->{bindRequest}->{name} =~ s/[@\.]/,dc=/g;
+			$request->{bindRequest}->{name} =~ s/^/uid=/;
+			warn "rewrite bind cn $old -> ", $request->{bindRequest}->{name};
+			Convert::ASN1::asn_hexdump(\*STDOUT,$pdu) if $debug;
+			$pdu = $LDAPRequest->encode($request);
+			Convert::ASN1::asn_hexdump(\*STDOUT,$pdu) if $debug;
+		}
+	}
+
+	return $pdu;
 }
 
 sub log_response {
 	my $pdu=shift;
 
-	print '-' x 80,"\n";
-	print "Response ASN 1:\n";
-	Convert::ASN1::asn_hexdump(\*STDOUT,$pdu);
-	print "Response Perl:\n";
+#	print '-' x 80,"\n";
+#	print "Response ASN 1:\n";
+#	Convert::ASN1::asn_hexdump(\*STDOUT,$pdu);
+#	print "Response Perl:\n";
 	my $response = $LDAPResponse->decode($pdu);
 
 	if ( defined $response->{protocolOp}->{searchResEntry} ) {
 		my $uid = $response->{protocolOp}->{searchResEntry}->{objectName};
-		warn "## SEARCH $uid";
+		warn "## objectName $uid";
 
 		my @attrs;
 
@@ -133,7 +160,7 @@ sub log_response {
 		$pdu = $LDAPResponse->encode($response);
 	}
 
-	print dump($response);
+	warn "## response = ", dump($response);
 
 	return $pdu;
 }
@@ -167,14 +194,12 @@ sub run_proxy {
 }
 
 
-$ENV{LANG} = 'C'; # so we don't double-encode utf-8 if LANG is utf-8
-
 my $listenersock = IO::Socket::INET->new(
 	Listen => 5,
 	Proto => 'tcp',
 	Reuse => 1,
 	LocalAddr => $config->{listen},
-);
+) || die "can't open listen socket: $!";
 
 
 my $targetsock = $config->{upstream_ssl}
@@ -184,7 +209,7 @@ my $targetsock = $config->{upstream_ssl}
 		PeerPort => 389,
 	)
 	: IO::Socket::SSL->new( $config->{upstream_ldap} . ':ldaps')
-	;
+	|| die "can't open upstream socket: $!";
 
 run_proxy($listenersock,$targetsock);