A3C/LDAP/Server.pm

package A3C::LDAP::Server;

use strict;
use warnings;

use Net::LDAP::Constant qw(
        LDAP_SUCCESS
        LDAP_STRONG_AUTH_NOT_SUPPORTED
        LDAP_UNAVAILABLE
        LDAP_OPERATIONS_ERROR
);
use Net::LDAP::Server;
use Net::LDAP::Filter;
use base 'Net::LDAP::Server';
use fields qw(upstream);

use A3C::LDAP;
use Data::Dump qw/dump/;

=head1 NAME

A3C::LDAP::Server

=cut

=head1 DESCRIPTION

Provide LDAP server functionality for L<A3C> somewhat similar to C<slapo-rwm>

=cut

use constant RESULT_OK => {
        'matchedDN' => '',
        'errorMessage' => '',
        'resultCode' => LDAP_SUCCESS
};

# constructor
sub new {
        my ($class, $sock) = @_;
        my $self = $class->SUPER::new($sock);
        printf "Accepted connection from: %s\n", $sock->peerhost();
        return $self;
}

# the bind operation
sub bind {
        my ($self,$req) = @_;

        warn "## bind req = ",dump($req);

        defined($req->{authentication}->{simple}) or return {
                matchedDN => '',
                errorMessage => '',
                resultCode => LDAP_STRONG_AUTH_NOT_SUPPORTED,
        };

        $self->{upstream} ||= A3C::LDAP->new->ldap or return {
                matchedDN => '',
                errorMessage => $@,
                resultCode => LDAP_UNAVAILABLE,
        };

#       warn "## upstream = ",dump( $self->{upstream} );
#       warn "upstream not Net::LDAP but ",ref($self->{upstream}) unless ref($self->{upstream}) eq 'Net::LDAP';

        return RESULT_OK;
}

# the search operation
sub search {
        my ($self,$req) = @_;

        warn "## search req = ",dump( $req );

        if ( ! $self->{upstream} ) {
                warn "search without bind";
                return {
                        matchedDN => '',
                        errorMessage => 'dude, bind first',
                        resultCode => LDAP_OPERATIONS_ERROR,
                };
        }

        my $filter;
        if (defined $req->{filter}) {
                # $req->{filter} is a ASN1-decoded tree; luckily, this is exactly the
                # internal representation Net::LDAP::Filter uses.  [FIXME] Eventually
                # Net::LDAP::Filter should provide a corresponding constructor.
                bless($req->{filter}, 'Net::LDAP::Filter');
                $filter = $req->{filter}->as_string;
#               $filter = '(&' . $req->{filter}->as_string
#                                          . '(objectClass=hrEduPerson)(host=aai.irb.hr))';
        }

        warn "search upstream for $filter\n";

        my $search = $self->{upstream}->search(
                base => $req->{baseObject},
                scope => $req->{scope},
                deref => $req->{derefAliases},
                sizelimit => $req->{sizeLimit},
                timelimit => $req->{timeLimit},
                typesonly => $req->{typesOnly},
                filter => $filter,
                attrs => $req->{attributes},
                raw => qr/.*/,
        );

#       warn "# search = ",dump( $search );

        if ( $search->code != LDAP_SUCCESS ) {
                warn "ERROR: ",$search->code,": ",$search->server_error;
                return {
                        matchedDN => '',
                        errorMessage => $search->server_error,
                        resultCode => $search->code,
                };
        };

        my @entries = $search->entries;
        warn "## got ", $search->count, " entries for $filter\n";
        foreach my $entry (@entries) {
#               $entry->changetype('add');  # Don't record changes.
#               foreach my $attr ($entry->attributes) {
#                       if ($attr =~ /;lang-en$/) { 
#                               $entry->delete($attr);
#                       }
#               }
        }

        warn "## entries = ",dump( @entries );
        return RESULT_OK, @entries;
}

# the rest of the operations will return an "unwilling to perform"

1;
1	package A3C::LDAP::Server;
2
3	use strict;
4	use warnings;
5
6	use Net::LDAP::Constant qw(
7	LDAP_SUCCESS
8	LDAP_STRONG_AUTH_NOT_SUPPORTED
9	LDAP_UNAVAILABLE
10	LDAP_OPERATIONS_ERROR
11	);
12	use Net::LDAP::Server;
13	use Net::LDAP::Filter;
14	use base 'Net::LDAP::Server';
15	use fields qw(upstream);
16
17	use A3C::LDAP;
18	use Data::Dump qw/dump/;
19
20	=head1 NAME
21
22	A3C::LDAP::Server
23
24	=cut
25
26	=head1 DESCRIPTION
27
28	Provide LDAP server functionality for L<A3C> somewhat similar to C<slapo-rwm>
29
30	=cut
31
32	use constant RESULT_OK => {
33	'matchedDN' => '',
34	'errorMessage' => '',
35	'resultCode' => LDAP_SUCCESS
36	};
37
38	# constructor
39	sub new {
40	my ($class, $sock) = @_;
41	my $self = $class->SUPER::new($sock);
42	printf "Accepted connection from: %s\n", $sock->peerhost();
43	return $self;
44	}
45
46	# the bind operation
47	sub bind {
48	my ($self,$req) = @_;
49
50	warn "## bind req = ",dump($req);
51
52	defined($req->{authentication}->{simple}) or return {
53	matchedDN => '',
54	errorMessage => '',
55	resultCode => LDAP_STRONG_AUTH_NOT_SUPPORTED,
56	};
57
58	$self->{upstream} \|\|= A3C::LDAP->new->ldap or return {
59	matchedDN => '',
60	errorMessage => $@,
61	resultCode => LDAP_UNAVAILABLE,
62	};
63
64	# warn "## upstream = ",dump( $self->{upstream} );
65	# warn "upstream not Net::LDAP but ",ref($self->{upstream}) unless ref($self->{upstream}) eq 'Net::LDAP';
66
67	return RESULT_OK;
68	}
69
70	# the search operation
71	sub search {
72	my ($self,$req) = @_;
73
74	warn "## search req = ",dump( $req );
75
76	if ( ! $self->{upstream} ) {
77	warn "search without bind";
78	return {
79	matchedDN => '',
80	errorMessage => 'dude, bind first',
81	resultCode => LDAP_OPERATIONS_ERROR,
82	};
83	}
84
85	my $filter;
86	if (defined $req->{filter}) {
87	# $req->{filter} is a ASN1-decoded tree; luckily, this is exactly the
88	# internal representation Net::LDAP::Filter uses. [FIXME] Eventually
89	# Net::LDAP::Filter should provide a corresponding constructor.
90	bless($req->{filter}, 'Net::LDAP::Filter');
91	$filter = $req->{filter}->as_string;
92	# $filter = '(&' . $req->{filter}->as_string
93	# . '(objectClass=hrEduPerson)(host=aai.irb.hr))';
94	}
95
96	warn "search upstream for $filter\n";
97
98	my $search = $self->{upstream}->search(
99	base => $req->{baseObject},
100	scope => $req->{scope},
101	deref => $req->{derefAliases},
102	sizelimit => $req->{sizeLimit},
103	timelimit => $req->{timeLimit},
104	typesonly => $req->{typesOnly},
105	filter => $filter,
106	attrs => $req->{attributes},
107	raw => qr/.*/,
108	);
109
110	# warn "# search = ",dump( $search );
111
112	if ( $search->code != LDAP_SUCCESS ) {
113	warn "ERROR: ",$search->code,": ",$search->server_error;
114	return {
115	matchedDN => '',
116	errorMessage => $search->server_error,
117	resultCode => $search->code,
118	};
119	};
120
121	my @entries = $search->entries;
122	warn "## got ", $search->count, " entries for $filter\n";
123	foreach my $entry (@entries) {
124	# $entry->changetype('add'); # Don't record changes.
125	# foreach my $attr ($entry->attributes) {
126	# if ($attr =~ /;lang-en$/) {
127	# $entry->delete($attr);
128	# }
129	# }
130	}
131
132	warn "## entries = ",dump( @entries );
133	return RESULT_OK, @entries;
134	}
135
136	# the rest of the operations will return an "unwilling to perform"
137
138	1;