Creating an entry to add or modify values

Dear Perl LDAP users!

I have some difficulties while trying to update the LDAP entry. I have
looked through the mail archive and I see that this topic is raised
quite often.

Ideally I would like to create an entry, that I would like to use either
for adding or for updating (the choice is not known at the moment of
creation). I see from debug output, that "changetype=add", but I call
$ldap->modify() which should override this...


=== CODE ===
my $entry = Net::LDAP::Entry->new();
my $ldif = Net::LDAP::LDIF->new(\*STDOUT, 'w', 'encode' => 'base64',
'change' => 1);

$entry->add('objectClass' => [ qw(inetOrgPerson mozillaAbPersonAlpha) ]);

# Somehow computed value, $1 = first name, $2 = surname:
$entry->dn("cn=$1 $2");
		
# These entries only when adding a new entry:
$entry->add(
	'givenName' => $1,
	'sn' => $2,
	'cn' => "$1 $2",
	'mail' => $contact->{email}
);

# These entries when adding/updating a new entry:
$entry->replace('mail' => $contact->{email});
$entry->replace('telephoneNumber' => $contact->{'telephone'});
$entry->replace('mobile' => $contact->{'mobile'});

eval { $ldap->search('base' => $entry->dn(), 'filter' => '(cn=*)',
'scope' => 'base', 'sizelimit' => 1) };

if ($@)
{
	print "Adding " . $entry->dn() . "\n";
	eval { $ldap->add($entry) };
	carp $@ if $@;
}
else
{
	print "Updating " . $entry->dn() . "\n";
	$ldif->write_entry($entry);
	$ldap->debug(15);
	$ldap->modify($entry);
}
=== END OF CODE ===

=== OUTPUT ===
Updating cn=Dmitry Katsubo,cn=persons,cn=centurion

dn: cn=Dmitry Katsubo,cn=persons,cn=centurion
changetype: add
objectClass: inetOrgPerson
objectClass: mozillaAbPersonAlpha
givenName: Dmitry
sn: Katsubo
cn: Dmitry Katsubo
mail: Dmitry Katsubo <[email protected]>
mobile: +31 65 196-30-34

Net::LDAP=HASH(0x2165c1c) sending:

30 32 02 01 03 66 2D 04 29 63 6E 3D 44 6D 69 74 02...f-.)cn=Dmit
72 79 20 4B 61 74 73 75 62 6F 2C 63 6E 3D 70 65 ry Katsubo,cn=pe
72 73 6F 6E 73 2C 63 6E 3D 63 65 6E 74 75 72 69 rsons,cn=centuri
6F 6E 30 00 __ __ __ __ __ __ __ __ __ __ __ __ on0.

0000   50: SEQUENCE {
0002    1:   INTEGER = 3
0005   45:   [APPLICATION 6] {
0007   41:     STRING = 'cn=Dmitry Katsubo,cn=persons,cn=centurion'
0032    0:     SEQUENCE {
0034     :     }
0034     :   }
0034     : }
Net::LDAP=HASH(0x2165c1c) received:

30 0C 02 01 03 67 07 0A 01 00 04 00 04 00 __ __ 0....g........

0000   12: SEQUENCE {
0002    1:   INTEGER = 3
0005    7:   [APPLICATION 7] {
0007    1:     ENUM = 0
000A    0:     STRING = ''
000C    0:     STRING = ''
000E     :   }
000E     : }
=== END OF OUTPUT ===

I also tried the following:

$entry->changetype('modify')->update($ldap);

instead of

$ldap->modify($entry);

with no effect (also debug was not shown).
Can somebody give an advice how to update the entry correctly?

Thanks!