/
LDAP.pm
1172 lines (923 loc) · 28.1 KB
/
LDAP.pm
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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 SOL_SOCKET SO_KEEPALIVE);
use IO::Socket;
use IO::Select;
use Tie::Hash;
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
);
# check for IPv6 support: prefer IO::Socket::IP 0.20+ over IO::Socket::INET6
use constant CAN_IPV6 => do {
local $SIG{__DIE__};
eval { require IO::Socket::IP; IO::Socket::IP->VERSION(0.20); }
? 'IO::Socket::IP'
: eval { require IO::Socket::INET6; }
? 'IO::Socket::INET6'
: '';
};
our $VERSION = '0.65';
our @ISA = qw(Tie::StdHash Net::LDAP::Extra);
our $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-existent 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 = $uri;
if (defined($h)) {
$h =~ s,^(\w+)://,, and $scheme = lc($1);
$h =~ s,/.*,,; # remove path part
$h =~ s/%([A-Fa-f0-9]{2})/chr(hex($1))/eg; # unescape
}
my $meth = $obj->can("connect_$scheme") or next;
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_socket}->setsockopt(SOL_SOCKET, SO_KEEPALIVE, $arg->{keepalive} ? 1 : 0)
if (defined($arg->{keepalive}));
$obj->{net_ldap_rawsocket} = $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) ? CAN_IPV6 : '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;
$arg->{sslserver} = $host unless defined $arg->{sslserver};
$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;
}
(
defined $arg->{ciphers} ?
( SSL_cipher_list => $arg->{ciphers} ) : (),
defined $arg->{sslversion} ?
( SSL_version => $arg->{sslversion} ) : (),
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 => $verify,
%verifycn_ctx,
);
}
sub connect_ldapi {
my ($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}
? $arg->{timeout}
: 120
) or return undef;
# try to get canonical host name [to allow start_tls on the connection]
require Socket;
if (Socket->can('getnameinfo') && Socket->can('getaddrinfo')) {
my @addrs;
my ($err, $host, $path) = Socket::getnameinfo($ldap->{net_ldap_socket}->peername, &Socket::AI_CANONNAME);
($err, @addrs) = Socket::getaddrinfo($host, 0, { flags => &Socket::AI_CANONNAME } )
unless ($err);
map { $ldap->{net_ldap_host} = $_->{canonname} if ($_->{canonname}) } @addrs
unless ($err);
}
$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 sasl {
$_[0]->{sasl};
}
sub socket {
my $ldap = shift;
my %opt = @_;
(exists($opt{sasl_layer}) && !$opt{sasl_layer})
? $ldap->{net_ldap_rawsocket}
: $ldap->{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
*done = \&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. Look at the rawsocket because SASL layer filehandles
# don't support socket methods.
my $sasl_host;
if (exists($arg->{sasl_host})) {
if ($arg->{sasl_host}) {
$sasl_host = $arg->{sasl_host};
}
elsif ($ldap->{net_ldap_rawsocket}->can('peerhost')) {
$sasl_host = $ldap->{net_ldap_rawsocket}->peerhost;
}
}
$sasl_host ||= $ldap->{net_ldap_host};
$sasl_conn = eval {
local ($SIG{__DIE__});
$sasl->client_new('ldap', $sasl_host);
};
}
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_rawsocket}->sockname,
peername => $ldap->{net_ldap_rawsocket}->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 children 3);
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;
if (exists $arg->{changes}) {
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++]});
my $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 my $op (qw(add delete replace increment)) {
next unless exists $arg->{$op};
my $opt = $arg->{$op};
my $opcode = $opcode{$op};
if (ref($opt) eq 'HASH') {
while (my ($k, $v) = each %$opt) {
push @ops, {
operation => $opcode,
modification => {
type => $k,
vals => ref($v) ? $v : [$v]
}
};
}
}
elsif (ref($opt) eq 'ARRAY') {
my $k = 0;
while ($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($$to_send)) {
my $s = substr($$to_send, $offset, 15000);
my $n = syswrite($socket, $s, length($s))
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 response
$ldap->{net_ldap_mesg}->{$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 data_ready {
my $ldap = shift;
my $sock = $ldap->socket or return;
my $sel = IO::Select->new($sock);
return defined $sel->can_read(0) || (ref($sock) eq 'IO::Socket::SSL' && $sock->pending());
}
sub process {
my $ldap = shift;
my $what = shift;
my $sock = $ldap->socket or return LDAP_SERVER_DOWN;
for (my $ready = 1; $ready; $ready = $ldap->data_ready) {
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) = @_;
delete $self->{net_ldap_rawsocket};
my $sock = delete $self->{net_ldap_socket};
close($sock) if $sock;
if (my $msgs = delete $self->{net_ldap_mesg}) {
foreach my $mesg (values %$msgs) {
next unless (defined $mesg);
$mesg->set_error($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 quote character to single quote
# character, just to be consistent throughout the schema
# and root_dse functions.