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#-*- perl -*-
#
# Copyright (C) 2001,2002,2003,2004 Ken'ichi Fukamachi
# All rights reserved. This program is free software; you can
# redistribute it and/or modify it under the same terms as Perl itself.
#
# $FML: DSN.pm,v 1.22 2003/01/26 03:23:09 fukachan Exp $
#
package Mail::Bounce::DSN;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK $AUTOLOAD);
use Carp;
my $debug = 0;
@ISA = qw(Mail::Bounce);
=head1 NAME
Mail::Bounce::DSN - DSN error message format parser
=head1 SYNOPSIS
See C<Mail::Bounce> for more details.
=head1 DESCRIPTION
See C<Mail::Bounce> for more details.
=head1 ERROR EXAMPLE
See RFC1894 on DSN (Delivery Status Notification) definition.
From: MAILER-DAEMON@ahodori.fml.org (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
To: fml-help-admin@ffs.fml.org
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
boundary="C687D866E0.986737575/ahodori.fml.org"
Message-Id: <20010408134615.F1DD786658@ahodori.fml.org>
This is a MIME-encapsulated message.
--C687D866E0.986737575/ahodori.fml.org
Content-Description: Notification
Content-Type: text/plain
This is the Postfix program at host ahodori.fml.org.
... reason ...
--C687D866E0.986737575/ahodori.fml.org
Content-Description: Delivery error report
Content-Type: message/delivery-status
Reporting-MTA: dns; ahodori.fml.org
Arrival-Date: Sun, 25 Mar 2001 22:34:15 +0900 (JST)
Final-Recipient: rfc822; rudo@nuinui.net
Action: failed
Status: 4.0.0
Diagnostic-Code: X-Postfix; connect to sv.nuinui.net[10.0.0.1]:
Connection refused
--C687D866E0.986737575/ahodori.fml.org
Content-Description: Undelivered Message
Content-Type: message/rfc822
... original message ...
-- rudo's mabuachi
--C687D866E0.986737575/ahodori.fml.org--
=cut
# Descriptions: analyze DSN format message.
# Arguments: OBJ($self) OBJ($msg) HASH_REF($result)
# Side Effects: update $result
# Return Value: none
sub analyze
{
my ($self, $msg, $result) = @_;
my $m = $msg->whole_message_body_head;
$m = $m->find( { data_type => 'message/delivery-status' } );
if (defined $m) {
# data in the part
my $data = $m->message_text;
my $n = $m->num_paragraph;
for (my $i = 0; $i < $n; $i++) {
my $buf = $m->nth_paragraph($i + 1); # 1 not 0 for 1st paragraph
if ($buf =~ /Recipient/) {
$self->_parse_dsn_format($buf, $result);
}
}
if ($debug) {
print STDERR "\t * no recipient information\n" unless %$result;
}
}
else {
return undef;
}
return $result;
}
# Descriptions: DSN parser
# [DSN Example]
# Final-Recipient: rfc822; rudo@nuinui.net
# Action: failed
# Status: 4.0.0
# Diagnostic-Code: X-Postfix; connect to mx.nuinui.net[10.1.1.1]:
# Connection refused
# Arguments: OBJ($self) STR($buf) HASH_REF($result)
# Side Effects: update $result
# Return Value: none
sub _parse_dsn_format
{
my ($self, $buf, $result) = @_;
use Mail::Header;
my @h = split(/\n/, $buf);
my $header = new Mail::Header \@h;
my $addr = $header->get('Original-Recipient') ||
$header->get('Final-Recipient');
if ($addr =~ /.*;\s*(\S+\@\S+\w+)/) { $addr = $1;}
$addr = $self->address_clean_up($self, $addr);
# gives $addr itself as a hint of fixing broken address
# domain part of $addr may match someting e.g. nifty.ne.jp, webtv.ne.jp.
$addr = $self->address_clean_up($addr, $addr);
if ($debug) {
print STDERR "\t *** valid address is not found\n" unless $addr;
}
# set up return buffer
if ($addr =~ /\@/o) {
$result->{ $addr }->{ 'Final-Recipient' } = $addr;
for my $var (qw(Final-Recipient
Original-Recipient
Action
Status
Diagnostic-Code
Reporting-MTA
Received-From-MTA)) {
$result->{ $addr }->{ $var } = $header->get($var) || undef;
}
$result->{ $addr }->{ 'hints' } = 'DSN';
}
}
=head1 CODING STYLE
See C<http://www.fml.org/software/FNF/> on fml coding style guide.
=head1 AUTHOR
Ken'ichi Fukamachi
=head1 COPYRIGHT
Copyright (C) 2001,2002,2003,2004 Ken'ichi Fukamachi
All rights reserved. This program is free software; you can
redistribute it and/or modify it under the same terms as Perl itself.
=head1 HISTORY
Mail::Bounce::DSN first appeared in fml8 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
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