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Andre Geißler
2024-10-14 00:08:40 +02:00
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Perl OTRS/Kernel/cpan-lib/Sisimai/Bite/Email/McAfee.pm Normal file
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package Sisimai::Bite::Email::McAfee;
use parent 'Sisimai::Bite::Email';
use feature ':5.10';
use strict;
use warnings;
my $Indicators = __PACKAGE__->INDICATORS;
my $StartingOf = {
'message' => ['--- The following addresses had delivery problems ---'],
'rfc822' => ['Content-Type: message/rfc822'],
};
my $ReFailures = {
'userunknown' => qr/(?: User [(].+[@].+[)] unknown[.] |550 Unknown user [^ ]+[@][^ ]+)/,
};
# X-NAI-Header: Modified by McAfee Email and Web Security Virtual Appliance
sub headerlist { return ['X-NAI-Header'] }
sub description { 'McAfee Email Appliance' }
sub scan {
# Detect an error from McAfee
# @param [Hash] mhead Message headers of a bounce email
# @options mhead [String] from From header
# @options mhead [String] date Date header
# @options mhead [String] subject Subject header
# @options mhead [Array] received Received headers
# @options mhead [String] others Other required headers
# @param [String] mbody Message body of a bounce email
# @return [Hash, Undef] Bounce data list and message/rfc822 part
# or Undef if it failed to parse or the
# arguments are missing
# @since v4.1.1
my $class = shift;
my $mhead = shift // return undef;
my $mbody = shift // return undef;
return undef unless defined $mhead->{'x-nai-header'};
return undef unless index($mhead->{'x-nai-header'}, 'Modified by McAfee') > -1;
return undef unless $mhead->{'subject'} eq 'Delivery Status';
my $dscontents = [__PACKAGE__->DELIVERYSTATUS];
my @hasdivided = split("\n", $$mbody);
my $rfc822part = ''; # (String) message/rfc822-headers part
my $rfc822list = []; # (Array) Each line in message/rfc822 part string
my $blanklines = 0; # (Integer) The number of blank lines
my $readcursor = 0; # (Integer) Points the current cursor position
my $recipients = 0; # (Integer) The number of 'Final-Recipient' header
my $diagnostic = ''; # (String) Alternative diagnostic message
my $v = undef;
my $p = '';
for my $e ( @hasdivided ) {
# Read each line between the start of the message and the start of rfc822 part.
unless( $readcursor ) {
# Beginning of the bounce message or delivery status part
if( index($e, $StartingOf->{'message'}->[0]) > -1 ) {
$readcursor |= $Indicators->{'deliverystatus'};
next;
}
}
unless( $readcursor & $Indicators->{'message-rfc822'} ) {
# Beginning of the original message part
if( $e eq $StartingOf->{'rfc822'}->[0] ) {
$readcursor |= $Indicators->{'message-rfc822'};
next;
}
}
if( $readcursor & $Indicators->{'message-rfc822'} ) {
# After "message/rfc822"
unless( length $e ) {
$blanklines++;
last if $blanklines > 1;
next;
}
push @$rfc822list, $e;
} else {
# Before "message/rfc822"
next unless $readcursor & $Indicators->{'deliverystatus'};
next unless length $e;
# Content-Type: text/plain; name="deliveryproblems.txt"
#
# --- The following addresses had delivery problems ---
#
# <user@example.com> (User unknown user@example.com)
#
# --------------Boundary-00=_00000000000000000000
# Content-Type: message/delivery-status; name="deliverystatus.txt"
#
$v = $dscontents->[-1];
if( $e =~ /\A[<]([^ ]+[@][^ ]+)[>][ \t]+[(](.+)[)]\z/ ) {
# <kijitora@example.co.jp> (Unknown user kijitora@example.co.jp)
if( $v->{'recipient'} ) {
# There are multiple recipient addresses in the message body.
push @$dscontents, __PACKAGE__->DELIVERYSTATUS;
$v = $dscontents->[-1];
}
$v->{'recipient'} = $1;
$diagnostic = $2;
$recipients++;
} elsif( $e =~ /\AOriginal-Recipient:[ ]*([^ ]+)\z/ ) {
# Original-Recipient: <kijitora@example.co.jp>
$v->{'alias'} = Sisimai::Address->s3s4($1);
} elsif( $e =~ /\AAction:[ ]*(.+)\z/ ) {
# Action: failed
$v->{'action'} = lc $1;
} elsif( $e =~ /\ARemote-MTA:[ ]*(.+)\z/ ) {
# Remote-MTA: 192.0.2.192
$v->{'rhost'} = lc $1;
} else {
if( $e =~ /\ADiagnostic-Code:[ ]*(.+?);[ ]*(.+)\z/ ) {
# Diagnostic-Code: SMTP; 550 5.1.1 <userunknown@example.jp>... User Unknown
$v->{'spec'} = uc $1;
$v->{'diagnosis'} = $2;
} elsif( index($p, 'Diagnostic-Code:') == 0 && $e =~ /\A\t+(.+)\z/ ) {
# Continued line of the value of Diagnostic-Code header
$v->{'diagnosis'} .= ' '.$1;
$e = 'Diagnostic-Code: '.$e;
}
}
} # End of if: rfc822
} continue {
# Save the current line for the next loop
$p = $e;
}
return undef unless $recipients;
for my $e ( @$dscontents ) {
$e->{'agent'} = __PACKAGE__->smtpagent;
$e->{'diagnosis'} = Sisimai::String->sweep($e->{'diagnosis'} || $diagnostic);
SESSION: for my $r ( keys %$ReFailures ) {
# Verify each regular expression of session errors
next unless $e->{'diagnosis'} =~ $ReFailures->{ $r };
$e->{'reason'} = $r;
last;
}
}
$rfc822part = Sisimai::RFC5322->weedout($rfc822list);
return { 'ds' => $dscontents, 'rfc822' => $$rfc822part };
}
1;
__END__
=encoding utf-8
=head1 NAME
Sisimai::Bite::Email::McAfee - bounce mail parser class for C<McAfee Email Appliance>.
=head1 SYNOPSIS
use Sisimai::Bite::Email::McAfee;
=head1 DESCRIPTION
Sisimai::Bite::Email::McAfee parses a bounce email which created by
C<McAfee Email Appliance>.
Methods in the module are called from only Sisimai::Message.
=head1 CLASS METHODS
=head2 C<B<description()>>
C<description()> returns description string of this module.
print Sisimai::Bite::Email::McAfee->description;
=head2 C<B<smtpagent()>>
C<smtpagent()> returns MTA name.
print Sisimai::Bite::Email::McAfee->smtpagent;
=head2 C<B<scan(I<header data>, I<reference to body string>)>>
C<scan()> method parses a bounced email and return results as a array reference.
See Sisimai::Message for more details.
=head1 AUTHOR
azumakuniyuki
=head1 COPYRIGHT
Copyright (C) 2014-2018 azumakuniyuki, All rights reserved.
=head1 LICENSE
This software is distributed under The BSD 2-Clause License.
=cut