1 |
dpavlin |
8 |
#!/usr/bin/perl |
2 |
|
|
# Copyright (c) 2006 Hans Klunder <hans.klunder@bigfoot.com>. All rights reserved. |
3 |
|
|
# This program is free software; you can redistribute it and/or |
4 |
|
|
# modify it under the same terms as Perl itself. |
5 |
|
|
|
6 |
|
|
|
7 |
|
|
use strict; |
8 |
|
|
use warnings; |
9 |
|
|
|
10 |
|
|
use IO::Select; |
11 |
|
|
use IO::Socket; |
12 |
|
|
use warnings; |
13 |
|
|
use Data::Dump qw/dump/; |
14 |
|
|
use Convert::ASN1 qw(asn_read); |
15 |
|
|
use Net::LDAP::ASN qw(LDAPRequest LDAPResponse); |
16 |
|
|
our $VERSION = '0.2'; |
17 |
|
|
use fields qw(socket target); |
18 |
dpavlin |
10 |
use YAML qw/LoadFile/; |
19 |
dpavlin |
8 |
|
20 |
|
|
sub handle { |
21 |
|
|
my $clientsocket=shift; |
22 |
|
|
my $serversocket=shift; |
23 |
|
|
|
24 |
|
|
# read from client |
25 |
|
|
asn_read($clientsocket, my $reqpdu); |
26 |
|
|
log_request($reqpdu); |
27 |
|
|
|
28 |
|
|
return 1 unless $reqpdu; |
29 |
|
|
|
30 |
|
|
# send to server |
31 |
|
|
print $serversocket $reqpdu or die "Could not send PDU to server\n "; |
32 |
|
|
|
33 |
|
|
# read from server |
34 |
|
|
my $ready; |
35 |
|
|
my $sel = IO::Select->new($serversocket); |
36 |
|
|
for( $ready = 1 ; $ready ; $ready = $sel->can_read(0)) { |
37 |
|
|
asn_read($serversocket, my $respdu) or return 1; |
38 |
|
|
$respdu = log_response($respdu); |
39 |
|
|
# and send the result to the client |
40 |
|
|
print $clientsocket $respdu; |
41 |
|
|
} |
42 |
|
|
|
43 |
|
|
return 0; |
44 |
|
|
} |
45 |
|
|
|
46 |
|
|
|
47 |
|
|
sub log_request { |
48 |
|
|
my $pdu=shift; |
49 |
|
|
|
50 |
|
|
print '-' x 80,"\n"; |
51 |
|
|
print "Request ASN 1:\n"; |
52 |
|
|
Convert::ASN1::asn_hexdump(\*STDOUT,$pdu); |
53 |
|
|
print "Request Perl:\n"; |
54 |
|
|
my $request = $LDAPRequest->decode($pdu); |
55 |
|
|
print dump($request); |
56 |
|
|
} |
57 |
|
|
|
58 |
|
|
sub log_response { |
59 |
|
|
my $pdu=shift; |
60 |
|
|
|
61 |
|
|
print '-' x 80,"\n"; |
62 |
|
|
print "Response ASN 1:\n"; |
63 |
|
|
Convert::ASN1::asn_hexdump(\*STDOUT,$pdu); |
64 |
|
|
print "Response Perl:\n"; |
65 |
|
|
my $response = $LDAPResponse->decode($pdu); |
66 |
|
|
|
67 |
|
|
if ( defined $response->{protocolOp}->{searchResEntry} ) { |
68 |
|
|
my $uid = $response->{protocolOp}->{searchResEntry}->{objectName}; |
69 |
|
|
warn "## SEARCH $uid"; |
70 |
dpavlin |
10 |
|
71 |
|
|
if(0) { |
72 |
dpavlin |
8 |
map { |
73 |
|
|
if ( $_->{type} eq 'postalAddress' ) { |
74 |
|
|
$_->{vals} = [ 'foobar' ]; |
75 |
|
|
} |
76 |
|
|
} @{ $response->{protocolOp}->{searchResEntry}->{attributes} }; |
77 |
dpavlin |
10 |
} |
78 |
dpavlin |
8 |
|
79 |
dpavlin |
10 |
my $path = "yaml/$uid.yaml"; |
80 |
|
|
if ( -e $path ) { |
81 |
|
|
my $data = LoadFile($path); |
82 |
|
|
warn "# yaml = ",dump($data); |
83 |
dpavlin |
8 |
|
84 |
dpavlin |
10 |
foreach my $type ( keys %$data ) { |
85 |
|
|
|
86 |
|
|
my $vals = $data->{$type}; |
87 |
|
|
$vals =~ s{#\s*$}{}; |
88 |
|
|
|
89 |
|
|
my @vals = split(/\s*#\s*/, $vals); |
90 |
|
|
|
91 |
|
|
push @{ $response->{protocolOp}->{searchResEntry}->{attributes} }, |
92 |
|
|
{ type => "ffzg-$type", vals => [ @vals ] }; |
93 |
|
|
} |
94 |
|
|
} |
95 |
|
|
|
96 |
dpavlin |
8 |
$pdu = $LDAPResponse->encode($response); |
97 |
|
|
} |
98 |
|
|
|
99 |
dpavlin |
10 |
print dump($response); |
100 |
|
|
|
101 |
dpavlin |
8 |
return $pdu; |
102 |
|
|
} |
103 |
|
|
|
104 |
|
|
sub run_proxy { |
105 |
|
|
my $listenersock = shift; |
106 |
|
|
my $targetsock=shift; |
107 |
|
|
|
108 |
|
|
die "Could not create listener socket: $!\n" unless $listenersock; |
109 |
|
|
die "Could not create connection to server: $!\n" unless $targetsock; |
110 |
|
|
|
111 |
|
|
my $sel = IO::Select->new($listenersock); |
112 |
|
|
my %Handlers; |
113 |
|
|
while (my @ready = $sel->can_read) { |
114 |
|
|
foreach my $fh (@ready) { |
115 |
|
|
if ($fh == $listenersock) { |
116 |
|
|
# let's create a new socket |
117 |
|
|
my $psock = $listenersock->accept; |
118 |
|
|
$sel->add($psock); |
119 |
|
|
} else { |
120 |
|
|
my $result = handle($fh,$targetsock); |
121 |
|
|
if ($result) { |
122 |
|
|
# we have finished with the socket |
123 |
|
|
$sel->remove($fh); |
124 |
|
|
$fh->close; |
125 |
|
|
delete $Handlers{*$fh}; |
126 |
|
|
} |
127 |
|
|
} |
128 |
|
|
} |
129 |
|
|
} |
130 |
|
|
} |
131 |
|
|
|
132 |
|
|
|
133 |
|
|
my $listenersock = IO::Socket::INET->new( |
134 |
|
|
Listen => 5, |
135 |
|
|
Proto => 'tcp', |
136 |
|
|
Reuse => 1, |
137 |
|
|
LocalPort => 1389 |
138 |
|
|
); |
139 |
|
|
|
140 |
|
|
|
141 |
|
|
my $targetsock = new IO::Socket::INET ( |
142 |
|
|
Proto => 'tcp', |
143 |
|
|
PeerAddr => 'ldap.ffzg.hr', |
144 |
|
|
PeerPort => 389, |
145 |
|
|
); |
146 |
|
|
|
147 |
|
|
run_proxy($listenersock,$targetsock); |
148 |
|
|
|
149 |
|
|
1; |