/usr/share/perl5/Mail/SPF/Mech/PTR.pm is in libmail-spf-perl 2.9.0-3.
This file is owned by root:root, with mode 0o644.
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# Mail::SPF::Mech::PTR
# SPF record "ptr" mechanism class.
#
# (C) 2005-2012 Julian Mehnle <julian@mehnle.net>
# 2005 Shevek <cpan@anarres.org>
# $Id: PTR.pm 57 2012-01-30 08:15:31Z julian $
#
##############################################################################
package Mail::SPF::Mech::PTR;
=head1 NAME
Mail::SPF::Mech::PTR - SPF record C<ptr> mechanism class
=cut
use warnings;
use strict;
use base 'Mail::SPF::SenderIPAddrMech';
use Mail::SPF::Util;
use constant TRUE => (0 == 0);
use constant FALSE => not TRUE;
use constant name => 'ptr';
use constant name_pattern => qr/${\name}/i;
=head1 DESCRIPTION
An object of class B<Mail::SPF::Mech::PTR> represents an SPF record mechanism
of type C<ptr>.
=head2 Constructors
The following constructors are provided:
=over
=item B<new(%options)>: returns I<Mail::SPF::Mech::PTR>
Creates a new SPF record C<ptr> mechanism object.
%options is a list of key/value pairs representing any of the following
options:
=over
=item B<qualifier>
=item B<domain_spec>
See L<Mail::SPF::Mech/new>.
=back
=item B<new_from_string($text, %options)>: returns I<Mail::SPF::Mech::PTR>;
throws I<Mail::SPF::ENothingToParse>, I<Mail::SPF::EInvalidMech>
Creates a new SPF record C<ptr> mechanism object by parsing the string and
any options given.
=back
=head2 Class methods
The following class methods are provided:
=over
=item B<default_qualifier>
=item B<qualifier_pattern>
See L<Mail::SPF::Mech/Class methods>.
=item B<name>: returns I<string>
Returns B<'ptr'>.
=item B<name_pattern>: returns I<Regexp>
Returns a regular expression that matches a mechanism name of B<'ptr'>.
=back
=head2 Instance methods
The following instance methods are provided:
=over
=cut
sub parse_params {
my ($self) = @_;
$self->parse_domain_spec();
return;
}
=item B<text>
=item B<qualifier>
=item B<params>
=cut
sub params {
my ($self) = @_;
return defined($self->{domain_spec}) ? ':' . $self->{domain_spec} : undef;
}
=item B<stringify>
See L<Mail::SPF::Mech/Instance methods>.
=item B<domain_spec>: returns I<Mail::SPF::MacroString>
Returns the C<domain-spec> parameter of the mechanism.
=cut
# Make read-only accessor:
__PACKAGE__->make_accessor('domain_spec', TRUE);
=item B<match($server, $request)>: returns I<boolean>
Checks whether the mechanism's target domain name, or a sub-domain thereof, is
a "valid" domain name for the given request's IP address (see
L<Mail::SPF::Request/ip_address>), and returns B<true> if it does, or B<false>
otherwise. See L<Mail::SPF::Util/valid_domain_for_ip_address> for how domains
are validated. See RFC 4408, 5.5, for the description of an equivalent
algorithm.
=cut
sub match {
my ($self, $server, $request) = @_;
$server->count_dns_interactive_term($request);
return
Mail::SPF::Util->valid_domain_for_ip_address(
$server, $request, $request->ip_address, $self->domain($server, $request))
? TRUE : FALSE;
}
=back
=head1 SEE ALSO
L<Mail::SPF>, L<Mail::SPF::Record>, L<Mail::SPF::Term>, L<Mail::SPF::Mech>
L<http://tools.ietf.org/html/rfc4408>
For availability, support, and license information, see the README file
included with Mail::SPF.
=head1 AUTHORS
Julian Mehnle <julian@mehnle.net>, Shevek <cpan@anarres.org>
=cut
TRUE;
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