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# Copyright (c) 1997-2004 Graham Barr <gbarr@pobox.com>. All rights reserved.
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
package Net::LDAP;
use strict;
use Socket qw(AF_INET AF_INET6 AF_UNSPEC);
use IO::Socket;
use IO::Select;
use Tie::Hash;
use vars qw($VERSION $LDAP_VERSION @ISA);
use Convert::ASN1 qw(asn_read);
use Net::LDAP::Message;
use Net::LDAP::ASN qw(LDAPResponse);
use Net::LDAP::Constant qw(LDAP_SUCCESS
LDAP_OPERATIONS_ERROR
LDAP_SASL_BIND_IN_PROGRESS
LDAP_DECODING_ERROR
LDAP_PROTOCOL_ERROR
LDAP_ENCODING_ERROR
LDAP_FILTER_ERROR
LDAP_LOCAL_ERROR
LDAP_PARAM_ERROR
LDAP_INAPPROPRIATE_AUTH
LDAP_SERVER_DOWN
LDAP_USER_CANCELED
LDAP_EXTENSION_START_TLS
LDAP_UNAVAILABLE
);
use constant CAN_IPV6 => eval { require IO::Socket::INET6 } ? 1 : 0;
$VERSION = "0.45";
@ISA = qw(Tie::StdHash Net::LDAP::Extra);
$LDAP_VERSION = 3; # default LDAP protocol version
# Net::LDAP::Extra will only exist is someone use's the module. But we need
# to ensure the package stash exists or perl will complain that we inherit
# from a non-existant package. I could just use the module, but I did not
# want to.
$Net::LDAP::Extra::create = $Net::LDAP::Extra::create = 0;
sub import {
shift;
unshift @_, 'Net::LDAP::Constant';
require Net::LDAP::Constant;
goto &{Net::LDAP::Constant->can('import')};
}
sub _options {
my %ret = @_;
my $once = 0;
for my $v (grep { /^-/ } keys %ret) {
require Carp;
$once++ or Carp::carp("deprecated use of leading - for options");
$ret{substr($v,1)} = $ret{$v};
}
$ret{control} = [ map { (ref($_) =~ /[^A-Z]/) ? $_->to_asn : $_ }
ref($ret{control}) eq 'ARRAY'
? @{$ret{control}}
: $ret{control}
]
if exists $ret{control};
\%ret;
}
sub _dn_options {
unshift @_, 'dn' if @_ & 1;
&_options;
}
sub _err_msg {
my $mesg = shift;
my $errstr = $mesg->dn || '';
$errstr .= ": " if $errstr;
$errstr . $mesg->error;
}
my %onerror = (
'die' => sub {
require Carp;
Carp::croak(_err_msg(@_))
},
'warn' => sub { require Carp; Carp::carp(_err_msg(@_)); $_[0] },
'undef' => sub { require Carp; Carp::carp(_err_msg(@_)) if $^W; undef },
);
sub _error {
my ($ldap, $mesg) = splice(@_,0,2);
$mesg->set_error(@_);
$ldap->{net_ldap_onerror} && !$ldap->{net_ldap_async}
? scalar &{$ldap->{net_ldap_onerror}}($mesg)
: $mesg;
}
sub new {
my $self = shift;
my $type = ref($self) || $self;
my $host = shift if @_ % 2;
my $arg = &_options;
my $obj = bless {}, $type;
foreach my $uri (ref($host) ? @$host : ($host)) {
my $scheme = $arg->{scheme} || 'ldap';
(my $h = $uri) =~ s,^(\w+)://,, and $scheme = $1;
my $meth = $obj->can("connect_$scheme") or next;
$h =~ s,/.*,,; # remove path part
$h =~ s/%([A-Fa-f0-9]{2})/chr(hex($1))/eg; # unescape
if (&$meth($obj, $h, $arg)) {
$obj->{net_ldap_uri} = $uri;
$obj->{net_ldap_scheme} = $scheme;
last;
}
}
return undef unless $obj->{net_ldap_socket};
$obj->{net_ldap_resp} = {};
$obj->{net_ldap_version} = $arg->{version} || $LDAP_VERSION;
$obj->{net_ldap_async} = $arg->{async} ? 1 : 0;
$obj->{raw} = $arg->{raw} if ($arg->{raw});
if (defined(my $onerr = $arg->{onerror})) {
$onerr = $onerror{$onerr} if exists $onerror{$onerr};
$obj->{net_ldap_onerror} = $onerr;
}
$obj->debug($arg->{debug} || 0 );
$obj->outer;
}
sub connect_ldap {
my ($ldap, $host, $arg) = @_;
my $port = $arg->{port} || 389;
my $class = (CAN_IPV6) ? 'IO::Socket::INET6' : 'IO::Socket::INET';
my $domain = $arg->{inet4} ? AF_INET : ($arg->{inet6} ? AF_INET6 : AF_UNSPEC);
# separate port from host overwriting given/default port
$host =~ s/^([^:]+|\[.*\]):(\d+)$/$1/ and $port = $2;
if ($arg->{inet6} && !CAN_IPV6) {
$@ = 'unable to load IO::Socket::INET6; no IPv6 support';
return undef;
}
$ldap->{net_ldap_socket} = $class->new(
PeerAddr => $host,
PeerPort => $port,
LocalAddr => $arg->{localaddr} || undef,
Proto => 'tcp',
Domain => $domain,
MultiHomed => $arg->{multihomed},
Timeout => defined $arg->{timeout}
? $arg->{timeout}
: 120
) or return undef;
$ldap->{net_ldap_host} = $host;
$ldap->{net_ldap_port} = $port;
}
# Different OpenSSL verify modes.
my %ssl_verify = qw(none 0 optional 1 require 3);
sub connect_ldaps {
my ($ldap, $host, $arg) = @_;
my $port = $arg->{port} || 636;
my $domain = $arg->{inet4} ? AF_INET : ($arg->{inet6} ? AF_INET6 : AF_UNSPEC);
if ($arg->{inet6} && !CAN_IPV6) {
$@ = 'unable to load IO::Socket::INET6; no IPv6 support';
return undef;
}
require IO::Socket::SSL;
# separate port from host overwriting given/default port
$host =~ s/^([^:]+|\[.*\]):(\d+)$/$1/ and $port = $2;
$ldap->{'net_ldap_socket'} = IO::Socket::SSL->new(
PeerAddr => $host,
PeerPort => $port,
LocalAddr => $arg->{localaddr} || undef,
Proto => 'tcp',
Domain => $domain,
Timeout => defined $arg->{'timeout'} ? $arg->{'timeout'} : 120,
_SSL_context_init_args($arg)
) or return undef;
$ldap->{net_ldap_host} = $host;
$ldap->{net_ldap_port} = $port;
}
sub _SSL_context_init_args {
my $arg = shift;
my $verify = 0;
my %verifycn_ctx = ();
my ($clientcert,$clientkey,$passwdcb);
if (exists $arg->{'verify'}) {
my $v = lc $arg->{'verify'};
$verify = 0 + (exists $ssl_verify{$v} ? $ssl_verify{$v} : $verify);
if ($verify) {
$verifycn_ctx{SSL_verifycn_scheme} = "ldap";
$verifycn_ctx{SSL_verifycn_name} = $arg->{'sslserver'}
if (defined $arg->{'sslserver'});
}
}
if (exists $arg->{'clientcert'}) {
$clientcert = $arg->{'clientcert'};
if (exists $arg->{'clientkey'}) {
$clientkey = $arg->{'clientkey'};
} else {
require Carp;
Carp::croak("Setting client public key but not client private key");
}
}
if ($arg->{'checkcrl'} && !$arg->{'capath'}) {
require Carp;
Carp::croak("Cannot check CRL without having CA certificates");
}
if (exists $arg->{'keydecrypt'}) {
$passwdcb = $arg->{'keydecrypt'};
}
# allow deprecated "sslv2/3" in addition to IO::Socket::SSL's "sslv23"
if (defined $arg->{'sslversion'}) {
$arg->{'sslversion'} =~ s:sslv2/3:sslv23:io;
}
(
SSL_cipher_list => defined $arg->{'ciphers'} ? $arg->{'ciphers'} : 'ALL',
SSL_ca_file => exists $arg->{'cafile'} ? $arg->{'cafile'} : '',
SSL_ca_path => exists $arg->{'capath'} ? $arg->{'capath'} : '',
SSL_key_file => $clientcert ? $clientkey : undef,
SSL_passwd_cb => $passwdcb,
SSL_check_crl => $arg->{'checkcrl'} ? 1 : 0,
SSL_use_cert => $clientcert ? 1 : 0,
SSL_cert_file => $clientcert,
SSL_verify_mode => $verify,
SSL_version => defined $arg->{'sslversion'} ? $arg->{'sslversion'} :
'sslv23',
%verifycn_ctx,
);
}
sub connect_ldapi {
my ($ldap, $peer, $arg) = @_;
$peer = $ENV{LDAPI_SOCK} || "/var/run/ldapi"
unless length $peer;
require IO::Socket::UNIX;
$ldap->{net_ldap_socket} = IO::Socket::UNIX->new(
Peer => $peer,
Timeout => defined $arg->{timeout}
? $arg->{timeout}
: 120
) or return undef;
$ldap->{net_ldap_host} = 'localhost';
$ldap->{net_ldap_peer} = $peer;
}
sub message {
my $ldap = shift;
shift->new($ldap, @_);
}
sub async {
my $ldap = shift;
@_
? ($ldap->{'net_ldap_async'},$ldap->{'net_ldap_async'} = shift)[0]
: $ldap->{'net_ldap_async'};
}
sub debug {
my $ldap = shift;
require Convert::ASN1::Debug if $_[0];
@_
? ($ldap->{net_ldap_debug},$ldap->{net_ldap_debug} = shift)[0]
: $ldap->{net_ldap_debug};
}
sub socket {
$_[0]->{net_ldap_socket};
}
sub host {
my $ldap = shift;
($ldap->{net_ldap_scheme} ne 'ldapi')
? $ldap->{net_ldap_host}
: $ldap->{net_ldap_peer};
}
sub port {
$_[0]->{net_ldap_port} || undef;
}
sub scheme {
$_[0]->{net_ldap_scheme};
}
sub uri {
$_[0]->{net_ldap_uri};
}
sub unbind {
my $ldap = shift;
my $arg = &_options;
my $mesg = $ldap->message('Net::LDAP::Unbind' => $arg);
my $control = $arg->{control}
and $ldap->{net_ldap_version} < 3
and return _error($ldap, $mesg, LDAP_PARAM_ERROR, "Controls require LDAPv3");
$mesg->encode(
unbindRequest => 1,
controls => $control,
) or return _error($ldap, $mesg,LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
# convenience alias
sub done {
goto &unbind;
}
sub ldapbind {
require Carp;
Carp::carp("->ldapbind deprecated, use ->bind") if $^W;
goto &bind;
}
my %ptype = qw(
password simple
krb41password krbv41
krb42password krbv42
kerberos41 krbv41
kerberos42 krbv42
sasl sasl
noauth anon
anonymous anon
);
sub bind {
my $ldap = shift;
my $arg = &_dn_options;
require Net::LDAP::Bind;
my $mesg = $ldap->message('Net::LDAP::Bind' => $arg);
$ldap->version(delete $arg->{version})
if exists $arg->{version};
my $dn = delete $arg->{dn} || '';
my $control = delete $arg->{control}
and $ldap->{net_ldap_version} < 3
and return _error($ldap, $mesg, LDAP_PARAM_ERROR, "Controls require LDAPv3");
my %stash = (
name => ref($dn) ? $dn->dn : $dn,
version => $ldap->version,
);
my($auth_type,$passwd) = scalar(keys %$arg) ? () : (simple => '');
keys %ptype; # Reset iterator
while(my($param,$type) = each %ptype) {
if (exists $arg->{$param}) {
($auth_type,$passwd) = $type eq 'anon' ? (simple => '') : ($type,$arg->{$param});
return _error($ldap, $mesg, LDAP_INAPPROPRIATE_AUTH, "No password, did you mean noauth or anonymous ?")
if $type eq 'simple' and $passwd eq '';
last;
}
}
return _error($ldap, $mesg, LDAP_INAPPROPRIATE_AUTH, "No AUTH supplied")
unless $auth_type;
if ($auth_type eq 'sasl') {
return _error($ldap, $mesg, LDAP_PARAM_ERROR, "SASL requires LDAPv3")
if $ldap->{net_ldap_version} < 3;
my $sasl = $passwd;
my $sasl_conn;
if (ref($sasl) and $sasl->isa('Authen::SASL')) {
# If we're talking to a round-robin, the canonical name of
# the host we are talking to might not match the name we
# requested
my $connected_name;
if ($ldap->{net_ldap_socket}->can('peerhost')) {
$connected_name = $ldap->{net_ldap_socket}->peerhost;
}
$connected_name ||= $ldap->{net_ldap_host};
$sasl_conn = eval {
local ($SIG{__DIE__});
$sasl->client_new("ldap", $connected_name);
};
}
else {
$sasl_conn = $sasl;
}
return _error($ldap, $mesg, LDAP_LOCAL_ERROR, "$@")
unless defined($sasl_conn);
# Tell SASL the local and server IP addresses
$sasl_conn->property(
sockname => $ldap->{net_ldap_socket}->sockname,
peername => $ldap->{net_ldap_socket}->peername,
);
my $initial = $sasl_conn->client_start;
return _error($ldap, $mesg, LDAP_LOCAL_ERROR, $sasl_conn->error)
unless defined($initial);
$passwd = {
mechanism => $sasl_conn->mechanism,
credentials => $initial,
};
# Save data, we will need it later
$mesg->_sasl_info($stash{name},$control,$sasl_conn);
}
$stash{authentication} = { $auth_type => $passwd };
$mesg->encode(
bindRequest => \%stash,
controls => $control
) or return _error($ldap, $mesg, LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
my %scope = qw(base 0 one 1 single 1 sub 2 subtree 2);
my %deref = qw(never 0 search 1 find 2 always 3);
sub search {
my $ldap = shift;
my $arg = &_options;
require Net::LDAP::Search;
$arg->{raw} = $ldap->{raw}
if ($ldap->{raw} && !defined($arg->{raw}));
my $mesg = $ldap->message('Net::LDAP::Search' => $arg);
my $control = $arg->{control}
and $ldap->{net_ldap_version} < 3
and return _error($ldap, $mesg, LDAP_PARAM_ERROR, "Controls require LDAPv3");
my $base = $arg->{base} || '';
my $filter;
unless (ref ($filter = $arg->{filter})) {
require Net::LDAP::Filter;
my $f = Net::LDAP::Filter->new;
$f->parse($filter)
or return _error($ldap, $mesg, LDAP_PARAM_ERROR,"Bad filter");
$filter = $f;
}
my %stash = (
baseObject => ref($base) ? $base->dn : $base,
scope => 2,
derefAliases => 2,
sizeLimit => $arg->{sizelimit} || 0,
timeLimit => $arg->{timelimit} || 0,
typesOnly => $arg->{typesonly} || $arg->{attrsonly} || 0,
filter => $filter,
attributes => $arg->{attrs} || []
);
if (exists $arg->{scope}) {
my $sc = lc $arg->{scope};
$stash{scope} = 0 + (exists $scope{$sc} ? $scope{$sc} : $sc);
}
if (exists $arg->{deref}) {
my $dr = lc $arg->{deref};
$stash{derefAliases} = 0 + (exists $deref{$dr} ? $deref{$dr} : $dr);
}
$mesg->encode(
searchRequest => \%stash,
controls => $control
) or return _error($ldap, $mesg, LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
sub add {
my $ldap = shift;
my $arg = &_dn_options;
my $mesg = $ldap->message('Net::LDAP::Add' => $arg);
my $control = $arg->{control}
and $ldap->{net_ldap_version} < 3
and return _error($ldap, $mesg, LDAP_PARAM_ERROR, "Controls require LDAPv3");
my $entry = $arg->{dn}
or return _error($ldap, $mesg, LDAP_PARAM_ERROR,"No DN specified");
unless (ref $entry) {
require Net::LDAP::Entry;
$entry = Net::LDAP::Entry->new;
$entry->dn($arg->{dn});
$entry->add(@{$arg->{attrs} || $arg->{attr} || []});
}
$mesg->encode(
addRequest => $entry->asn,
controls => $control
) or return _error($ldap, $mesg, LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
my %opcode = ( 'add' => 0, 'delete' => 1, 'replace' => 2, 'increment' => 3);
sub modify {
my $ldap = shift;
my $arg = &_dn_options;
my $mesg = $ldap->message('Net::LDAP::Modify' => $arg);
my $control = $arg->{control}
and $ldap->{net_ldap_version} < 3
and return _error($ldap, $mesg, LDAP_PARAM_ERROR, "Controls require LDAPv3");
my $dn = $arg->{dn}
or return _error($ldap, $mesg, LDAP_PARAM_ERROR,"No DN specified");
my @ops;
my $opcode;
my $op;
if (exists $arg->{changes}) {
my $chg;
my $opcode;
my $j = 0;
while($j < @{$arg->{changes}}) {
return _error($ldap, $mesg, LDAP_PARAM_ERROR,"Bad change type '" . $arg->{changes}[--$j] . "'")
unless defined($opcode = $opcode{$arg->{changes}[$j++]});
$chg = $arg->{changes}[$j++];
if (ref($chg)) {
my $i = 0;
while ($i < @$chg) {
push @ops, {
operation => $opcode,
modification => {
type => $chg->[$i],
vals => ref($chg->[$i+1]) ? $chg->[$i+1] : [$chg->[$i+1]]
}
};
$i += 2;
}
}
}
}
else {
foreach $op (qw(add delete replace increment)) {
next unless exists $arg->{$op};
my $opt = $arg->{$op};
my $opcode = $opcode{$op};
my($k,$v);
if (ref($opt) eq 'HASH') {
while (($k,$v) = each %$opt) {
push @ops, {
operation => $opcode,
modification => {
type => $k,
vals => ref($v) ? $v : [$v]
}
};
}
}
elsif (ref($opt) eq 'ARRAY') {
$k = 0;
while ($k < @{$opt}) {
my $attr = ${$opt}[$k++];
my $val = $opcode == 1 ? [] : ${$opt}[$k++];
push @ops, {
operation => $opcode,
modification => {
type => $attr,
vals => ref($val) ? $val : [$val]
}
};
}
}
else {
push @ops, {
operation => $opcode,
modification => {
type => $opt,
vals => []
}
};
}
}
}
$mesg->encode(
modifyRequest => {
object => ref($dn) ? $dn->dn : $dn,
modification => \@ops
},
controls => $control
)
or return _error($ldap, $mesg, LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
sub delete {
my $ldap = shift;
my $arg = &_dn_options;
my $mesg = $ldap->message('Net::LDAP::Delete' => $arg);
my $control = $arg->{control}
and $ldap->{net_ldap_version} < 3
and return _error($ldap, $mesg, LDAP_PARAM_ERROR, "Controls require LDAPv3");
my $dn = $arg->{dn}
or return _error($ldap, $mesg, LDAP_PARAM_ERROR,"No DN specified");
$mesg->encode(
delRequest => ref($dn) ? $dn->dn : $dn,
controls => $control
) or return _error($ldap, $mesg, LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
sub moddn {
my $ldap = shift;
my $arg = &_dn_options;
my $del = $arg->{deleteoldrdn} || $arg->{'delete'} || 0;
my $newsup = $arg->{newsuperior};
my $mesg = $ldap->message('Net::LDAP::ModDN' => $arg);
my $control = $arg->{control}
and $ldap->{net_ldap_version} < 3
and return _error($ldap, $mesg, LDAP_PARAM_ERROR, "Controls require LDAPv3");
my $dn = $arg->{dn}
or return _error($ldap, $mesg, LDAP_PARAM_ERROR,"No DN specified");
my $new = $arg->{newrdn} || $arg->{'new'}
or return _error($ldap, $mesg, LDAP_PARAM_ERROR,"No NewRDN specified");
$mesg->encode(
modDNRequest => {
entry => ref($dn) ? $dn->dn : $dn,
newrdn => ref($new) ? $new->dn : $new,
deleteoldrdn => $del,
newSuperior => ref($newsup) ? $newsup->dn : $newsup,
},
controls => $control
) or return _error($ldap, $mesg, LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
# now maps to the V3/X.500(93) modifydn map
sub modrdn { goto &moddn }
sub compare {
my $ldap = shift;
my $arg = &_dn_options;
my $mesg = $ldap->message('Net::LDAP::Compare' => $arg);
my $control = $arg->{control}
and $ldap->{net_ldap_version} < 3
and return _error($ldap, $mesg, LDAP_PARAM_ERROR, "Controls require LDAPv3");
my $dn = $arg->{dn}
or return _error($ldap, $mesg, LDAP_PARAM_ERROR,"No DN specified");
my $attr = exists $arg->{attr}
? $arg->{attr}
: exists $arg->{attrs} #compat
? $arg->{attrs}[0]
: "";
my $value = exists $arg->{value}
? $arg->{value}
: exists $arg->{attrs} #compat
? $arg->{attrs}[1]
: "";
$mesg->encode(
compareRequest => {
entry => ref($dn) ? $dn->dn : $dn,
ava => {
attributeDesc => $attr,
assertionValue => $value
}
},
controls => $control
) or return _error($ldap, $mesg, LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
sub abandon {
my $ldap = shift;
unshift @_,'id' if @_ & 1;
my $arg = &_options;
my $id = $arg->{id};
my $mesg = $ldap->message('Net::LDAP::Abandon' => $arg);
my $control = $arg->{control}
and $ldap->{net_ldap_version} < 3
and return _error($ldap, $mesg, LDAP_PARAM_ERROR, "Controls require LDAPv3");
$mesg->encode(
abandonRequest => ref($id) ? $id->mesg_id : $id,
controls => $control
) or return _error($ldap, $mesg, LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
sub extension {
my $ldap = shift;
my $arg = &_options;
require Net::LDAP::Extension;
my $mesg = $ldap->message('Net::LDAP::Extension' => $arg);
return _error($ldap, $mesg, LDAP_LOCAL_ERROR, "ExtendedRequest requires LDAPv3")
if $ldap->{net_ldap_version} < 3;
$mesg->encode(
extendedReq => {
requestName => $arg->{name},
requestValue => $arg->{value}
},
controls => $arg->{control}
) or return _error($ldap, $mesg, LDAP_ENCODING_ERROR,"$@");
$ldap->_sendmesg($mesg);
}
sub sync {
my $ldap = shift;
my $mid = shift;
my $table = $ldap->{net_ldap_mesg};
my $err = LDAP_SUCCESS;
return $err unless defined $table;
$mid = $mid->mesg_id if ref($mid);
while (defined($mid) ? exists $table->{$mid} : %$table) {
last if $err = $ldap->process($mid);
}
$err;
}
sub disconnect {
my $self = shift;
_drop_conn($self, LDAP_USER_CANCELED, "Explicit disconnect");
}
sub _sendmesg {
my $ldap = shift;
my $mesg = shift;
my $debug;
if ($debug = $ldap->debug) {
require Convert::ASN1::Debug;
print STDERR "$ldap sending:\n";
Convert::ASN1::asn_hexdump(*STDERR, $mesg->pdu)
if $debug & 1;
Convert::ASN1::asn_dump(*STDERR, $mesg->pdu)
if $debug & 4;
}
my $socket = $ldap->socket
or return _error($ldap, $mesg, LDAP_SERVER_DOWN, "$!");
# send packets in sizes that IO::Socket::SSL can chew
# originally it was:
#syswrite($socket, $mesg->pdu, length($mesg->pdu))
# or return _error($ldap, $mesg, LDAP_LOCAL_ERROR,"$!")
my $to_send = \( $mesg->pdu );
my $offset = 0;
while($offset < length($$to_send)) {
my $n = syswrite($socket, substr($$to_send, $offset, 15000), 15000)
or return _error($ldap, $mesg, LDAP_LOCAL_ERROR,"$!");
$offset += $n;
}
# for CLDAP, here we need to recode when we were sent
# so that we can perform timeouts and resends
my $mid = $mesg->mesg_id;
my $sync = not $ldap->async;
unless ($mesg->done) { # may not have a responce
$ldap->{net_ldap_mesg}->{$mid} = $mesg;
if ($sync) {
my $err = $ldap->sync($mid);
return _error($ldap, $mesg, $err,$@) if $err;
}
}
$sync && $ldap->{net_ldap_onerror} && $mesg->is_error
? scalar &{$ldap->{net_ldap_onerror}}($mesg)
: $mesg;
}
sub process {
my $ldap = shift;
my $what = shift;
my $sock = $ldap->socket or return LDAP_SERVER_DOWN;
my $sel = IO::Select->new($sock);
my $ready;
for( $ready = 1 ; $ready ; $ready = $sel->can_read(0) || (ref($sock) eq 'IO::Socket::SSL' && $sock->pending())) {
my $pdu;
asn_read($sock, $pdu)
or return _drop_conn($ldap, LDAP_OPERATIONS_ERROR, "Communications Error");
my $debug;
if ($debug = $ldap->debug) {
require Convert::ASN1::Debug;
print STDERR "$ldap received:\n";
Convert::ASN1::asn_hexdump(\*STDERR,$pdu)
if $debug & 2;
Convert::ASN1::asn_dump(\*STDERR,$pdu)
if $debug & 8;
}
my $result = $LDAPResponse->decode($pdu)
or return LDAP_DECODING_ERROR;
my $mid = $result->{messageID};
my $mesg = $ldap->{net_ldap_mesg}->{$mid};
unless ($mesg) {
if (my $ext = $result->{protocolOp}{extendedResp}) {
if (($ext->{responseName} || '') eq '1.3.6.1.4.1.1466.20036') {
# notice of disconnection
return _drop_conn($ldap, LDAP_SERVER_DOWN, "Notice of Disconnection");
}
}
print STDERR "Unexpected PDU, ignored\n" if $debug & 10;
next;
}
$mesg->decode($result) or
return $mesg->code;
last if defined $what && $what == $mid;
}
# FIXME: in CLDAP here we need to check if any message has timed out
# and if so do we resend it or what
return LDAP_SUCCESS;
}
*_recvresp = \&process; # compat
sub _drop_conn {
my ($self, $err, $etxt) = @_;
my $sock = delete $self->{net_ldap_socket};
close($sock) if $sock;
if (my $msgs = delete $self->{net_ldap_mesg}) {
foreach my $mesg (values %$msgs) {
$mesg->set_error($err, $etxt);
}
}
$err;
}
sub _forgetmesg {
my $ldap = shift;
my $mesg = shift;
my $mid = $mesg->mesg_id;
delete $ldap->{net_ldap_mesg}->{$mid};
}
#Mark Wilcox 3-20-2000
#now accepts named parameters
#dn => "dn of subschema entry"
#
#
# Clif Harden 2-4-2001.
# corrected filter for subschema search.
# added attributes to retrieve on subschema search.
# added attributes to retrieve on rootDSE search.
# changed several double qoute character to single quote
# character, just to be consistent throughout the schema
# and root_dse functions.
#
sub schema {
require Net::LDAP::Schema;
my $self = shift;
my %arg = @_;
my $base;
my $mesg;
if (exists $arg{'dn'}) {
$base = $arg{'dn'};
}
else {
my $root = $self->root_dse( attrs => ['subschemaSubentry'] )
or return undef;
$base = $root->get_value('subschemaSubentry') || 'cn=schema';
}
$mesg = $self->search(
base => $base,
scope => 'base',
filter => '(objectClass=subschema)',
attrs => [qw(
objectClasses
attributeTypes
matchingRules
matchingRuleUse
dITStructureRules
dITContentRules
nameForms
ldapSyntaxes
extendedAttributeInfo
)],
);
$mesg->code
? undef
: Net::LDAP::Schema->new($mesg->entry);
}
sub root_dse {
my $ldap = shift;
my %arg = @_;
my $attrs = $arg{attrs} || [qw(
subschemaSubentry
namingContexts
altServer
supportedExtension
supportedControl
supportedFeatures
supportedSASLMechanisms
supportedLDAPVersion
vendorName
vendorVersion
)];
my $root = $arg{attrs} && $ldap->{net_ldap_root_dse};
return $root if $root;
my $mesg = $ldap->search(
base => '',
scope => 'base',
filter => '(objectClass=*)',
attrs => $attrs,
);
require Net::LDAP::RootDSE;
$root = $mesg->entry;
bless $root, 'Net::LDAP::RootDSE' if $root; # Naughty, but there you go :-)
$ldap->{net_ldap_root_dse} = $root unless $arg{attrs};
return $root;
}
sub start_tls {
my $ldap = shift;
my $arg = &_options;
my $sock = $ldap->socket;
require IO::Socket::SSL;
require Net::LDAP::Extension;
my $mesg = $ldap->message('Net::LDAP::Extension' => $arg);
return _error($ldap, $mesg, LDAP_OPERATIONS_ERROR, "TLS already started")
if $sock->isa('IO::Socket::SSL');
return _error($ldap, $mesg, LDAP_PARAM_ERROR, "StartTLS requires LDAPv3")
if $ldap->version < 3;
$mesg->encode(
extendedReq => {
requestName => LDAP_EXTENSION_START_TLS,
}
);
$ldap->_sendmesg($mesg);
$mesg->sync();
return $mesg
if $mesg->code;
delete $ldap->{net_ldap_root_dse};
$arg->{sslversion} = 'tlsv1' unless defined $arg->{sslversion};
$arg->{sslserver} = $ldap->{'net_ldap_host'} unless defined $arg->{sslserver};
IO::Socket::SSL::context_init( { _SSL_context_init_args($arg) } );
my $sock_class = ref($sock);
return $mesg
if IO::Socket::SSL->start_SSL($sock, {_SSL_context_init_args($arg)});
my $err = $@ || $IO::Socket::SSL::SSL_ERROR || $IO::Socket::SSL::SSL_ERROR || ''; # avoid use on once warning
if ($sock_class ne ref($sock)) {
$err = $sock->errstr;
bless $sock, $sock_class;
}
_error($ldap, $mesg, LDAP_OPERATIONS_ERROR, $err);
}
sub cipher {
my $ldap = shift;
$ldap->socket->isa('IO::Socket::SSL')
? $ldap->socket->get_cipher
: undef;
}
sub certificate {
my $ldap = shift;
$ldap->socket->isa('IO::Socket::SSL')
? $ldap->socket->get_peer_certificate
: undef;
}
# what version are we talking?
sub version {
my $ldap = shift;
@_
? ($ldap->{net_ldap_version},$ldap->{net_ldap_version} = shift)[0]
: $ldap->{net_ldap_version};
}
sub outer {
my $self = shift;
return $self if tied(%$self);
my %outer;
tie %outer, ref($self), $self;
++$self->{net_ldap_refcnt};
bless \%outer, ref($self);
}
sub inner {
tied(%{$_[0]}) || $_[0];
}
sub TIEHASH {
$_[1];
}
sub DESTROY {
my $ldap = shift;
my $inner = tied(%$ldap) or return;
_drop_conn($inner, LDAP_UNAVAILABLE, "Implicit disconnect")
unless --$inner->{net_ldap_refcnt};
}
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