• NAME
• SYNOPSIS
• DESCRIPTION
• CONSTRUCTORS
• METHODS
• SEE ALSO
• AUTHOR
• COPYRIGHT

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NAME

Net::LDAP::Control - LDAPv3 control object base class

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SYNOPSIS

 use Net::LDAP::Control;

 use Net::LDAP::Constant qw( LDAP_CONTROL_MATCHEDVALS );

 $ctrl = Net::LDAP::Control->new(

   type     => "1.2.3.4",

   value    => "help",

   critical => 0

 );

 $mesg = $ldap->search( @args, control => [ $ctrl ]);

 $ctrl = Net::LDAP::Control->new( type => LDAP_CONTROL_MATCHEDVALS );

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DESCRIPTION

Net::LDAP::Control is a base-class for LDAPv3 control objects.

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CONSTRUCTORS

new ( ARGS )

ARGS is a list of name/value pairs, valid arguments are.

critical

A booloean value, if TRUE and the control is unrecognized by the server or

is inappropriate for the requested operation then the server will return

an error and the operation will not be performed.

If FALSE and the control is unrecognized by the server or

is inappropriate for the requested operation then the server will ignore

the control and perform the requested operation as if the control was

not given.<div style=``overflow:auto; height:1px; width:1px;''>

</div>

If absent, FALSE is assumed.

type

A dotted-decimal representation of an OBJECT IDENTIFIER which

uniquely identifies the control. This prevents conflicts between

control names.

This may be ommitted if the contructor is being called on a sub-class of

Net::LDAP::Control which has registered to be associated with an OID.

If the contructor is being called on the Net::LDAP::Control

package, then this argument must be given. If the given OID has been

registered by a package, then the returned object will be of the type

registered to handle that OID.

value

Optional information associated with the control. It's format is specific

to the particular control.

from_asn ( ASN )

ASN is a HASH reference, normally extracted from a PDU. It will contain

a type element and optionally critical and value elements. On

return ASN will be blessed into a package. If type is a registered

OID, then ASN will be blessed into the registered package, if not then ASN

will be blessed into Net::LDAP::Control.

This constructor is used internally by Net::LDAP and assumes that HASH

passed contains a valid control. It should be used with caution.

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METHODS

In addition to the methods listed below, each of the named parameters to new is also avaliable as a method. type will return the OID of the control object. value and critical are set/get methods and will return the current value for each attribute if called without arguments, but may also be called with arguments to set new values.

error ()

If there has been an error returns a description of the error, otherwise it will

return undef

init ()

init will be called as the last step in both contructors. What it does will depend

on the sub-class. It must always return the object.

register ( OID )

register is provided for sub-class implementors. It should be called as a class method

on a sub-class of Net::LDAP::Control with the OID that the class will handle. Net::LDAP::Control

will remember this class and OID pair and use it in the following

situations.

new is called as a class method on the Net::LDAP::Control package and OID is passed as the type. The returned object will be blessed into the package that registered the OID.
new is called as a class method on a registered package and the type is not specified. The type will be set to the OID registered by that package.
from_asn is called to construct an object from ASN. The returned object will be blessed into the package which was registered to handle the OID in the ASN.

( to_asn )

Returns a structure suitable for passing to Convert::ASN1 for

encoding. This method will be called by the Net::LDAP manpage when the

control is used.

The base class implementation of this method will call the value method

without arguments to allow a sub-class to encode it's value. Sub-classes

should not need to override this method.

valid ()

Returns true if the object is valid and can be encoded. The default implementation

for this method is to return TRUE if there is no error, but sub-classes may override that.

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SEE ALSO

the Net::LDAP manpage

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AUTHOR

Graham Barr <gbarr@pobox.com> Please report any bugs, or post any suggestions, to the perl-ldap mailing list <perl-ldap@perl.org>

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COPYRIGHT

Copyright (c) 1999-2004 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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