/usr/share/perl5/Mail/SPF/Mech/IP4.pm is in libmail-spf-perl 2.8.0-1.
This file is owned by root:root, with mode 0o644.
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# Mail::SPF::Mech::IP4
# SPF record "ip4" mechanism class.
#
# (C) 2005-2012 Julian Mehnle <julian@mehnle.net>
# 2005 Shevek <cpan@anarres.org>
# $Id: IP4.pm 57 2012-01-30 08:15:31Z julian $
#
##############################################################################
package Mail::SPF::Mech::IP4;
=head1 NAME
Mail::SPF::Mech::IP4 - SPF record C<ip4> mechanism class
=cut
use warnings;
use strict;
use base 'Mail::SPF::SenderIPAddrMech';
use constant TRUE => (0 == 0);
use constant FALSE => not TRUE;
use constant name => 'ip4';
use constant name_pattern => qr/${\name}/i;
=head1 DESCRIPTION
An object of class B<Mail::SPF::Mech::IP4> represents an SPF record mechanism
of type C<ip4>.
=head2 Constructors
The following constructors are provided:
=over
=item B<new(%options)>: returns I<Mail::SPF::Mech::IP4>
Creates a new SPF record C<ip4> mechanism object.
%options is a list of key/value pairs representing any of the following
options:
=over
=item B<qualifier>
=item B<ip_network>
See L<Mail::SPF::Mech/new>.
=back
=item B<new_from_string($text, %options)>: returns I<Mail::SPF::Mech::IP4>;
throws I<Mail::SPF::ENothingToParse>, I<Mail::SPF::EInvalidMech>
Creates a new SPF record C<ip4> 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<default_ipv4_prefix_length>
=item B<qualifier_pattern>
See L<Mail::SPF::Mech/Class methods>.
=item B<name>: returns I<string>
Returns B<'ip4'>.
=item B<name_pattern>: returns I<Regexp>
Returns a regular expression that matches a mechanism name of B<'ip4'>.
=back
See L<Mail::SPF::Mech> for other supported class methods.
=head2 Instance methods
The following instance methods are provided:
=over
=cut
sub parse_params {
my ($self) = @_;
$self->parse_ipv4_network(TRUE);
return;
}
=item B<text>
=item B<qualifier>
=item B<params>
=cut
sub params {
my ($self) = @_;
my $params = ':' . $self->{ip_network}->addr;
$params .= '/' . $self->{ip_network}->masklen
if $self->{ip_network}->masklen != $self->default_ipv4_prefix_length;
return $params;
}
=item B<stringify>
See L<Mail::SPF::Mech/Instance methods>.
=item B<ip_network>: returns I<NetAddr::IP>
Returns the IP address network parameter of the mechanism.
=cut
# Make read-only accessors:
__PACKAGE__->make_accessor($_, TRUE)
foreach qw(ip_network ip_address ipv4_prefix_length);
=item B<match($server, $request)>: returns I<boolean>
Returns B<true> if the mechanism's C<ip_network> equals or contains the given
request's IP address, or B<false> otherwise. See RFC 4408, 5.6, for details.
=cut
sub match {
my ($self, $server, $request) = @_;
my $ip_network_v6 =
$self->ip_network->version == 4 ?
Mail::SPF::Util->ipv4_address_to_ipv6($self->ip_network)
: $self->ip_network;
return $ip_network_v6->contains($request->ip_address_v6);
}
=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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