/usr/share/perl5/Mail/SpamAssassin/Plugin/RelayCountry.pm is in spamassassin 3.3.2-5+deb7u3.
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# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to you under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# </@LICENSE>
=head1 NAME
RelayCountry - add message metadata indicating the country code of each relay
=head1 SYNOPSIS
loadplugin Mail::SpamAssassin::Plugin::RelayCountry
=head1 DESCRIPTION
By the RelayCountry plugin attempts to determine the domain country
codes of each relay used in the delivery path of messages and add that
information to the message metadata as "X-Relay-Countries", or
the C<_RELAYCOUNTRY_> header markup.
=head1 REQUIREMENT
This plugin requires the IP::Country module from CPAN.
=cut
package Mail::SpamAssassin::Plugin::RelayCountry;
use Mail::SpamAssassin::Plugin;
use Mail::SpamAssassin::Logger;
use strict;
use warnings;
use bytes;
use re 'taint';
use vars qw(@ISA);
@ISA = qw(Mail::SpamAssassin::Plugin);
# constructor: register the eval rule
sub new {
my $class = shift;
my $mailsaobject = shift;
# some boilerplate...
$class = ref($class) || $class;
my $self = $class->SUPER::new($mailsaobject);
bless ($self, $class);
return $self;
}
sub extract_metadata {
my ($self, $opts) = @_;
my $reg;
eval {
require IP::Country::Fast;
$reg = IP::Country::Fast->new();
1;
} or do {
my $eval_stat = $@ ne '' ? $@ : "errno=$!"; chomp $eval_stat;
dbg("metadata: failed to load 'IP::Country::Fast', skipping: $eval_stat");
return 1;
};
my $msg = $opts->{msg};
my $countries = '';
foreach my $relay (@{$msg->{metadata}->{relays_untrusted}}) {
my $ip = $relay->{ip};
my $cc = $reg->inet_atocc($ip) || "XX";
$countries .= $cc." ";
}
chop $countries;
$msg->put_metadata("X-Relay-Countries", $countries);
dbg("metadata: X-Relay-Countries: $countries");
return 1;
}
sub parsed_metadata {
my ($self, $opts) = @_;
$opts->{permsgstatus}->set_tag ("RELAYCOUNTRY",
$opts->{permsgstatus}->get_message->get_metadata('X-Relay-Countries'));
return 1;
}
1;
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