211 lines
7.3 KiB
Perl
211 lines
7.3 KiB
Perl
package Sisimai::Bite::Email::MailMarshalSMTP;
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use parent 'Sisimai::Bite::Email';
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use feature ':5.10';
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use strict;
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use warnings;
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my $Indicators = __PACKAGE__->INDICATORS;
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my $StartingOf = {
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'message' => ['Your message:'],
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'error' => ['Could not be delivered because of'],
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'rcpts' => ['The following recipients were affected:'],
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};
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my $MarkingsOf = { 'rfc822' => undef };
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sub description { 'Trustwave Secure Email Gateway' }
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sub scan {
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# Detect an error from MailMarshalSMTP
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# @param [Hash] mhead Message headers of a bounce email
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# @options mhead [String] from From header
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# @options mhead [String] date Date header
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# @options mhead [String] subject Subject header
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# @options mhead [Array] received Received headers
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# @options mhead [String] others Other required headers
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# @param [String] mbody Message body of a bounce email
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# @return [Hash, Undef] Bounce data list and message/rfc822 part
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# or Undef if it failed to parse or the
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# arguments are missing
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# @since v4.1.9
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my $class = shift;
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my $mhead = shift // return undef;
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my $mbody = shift // return undef;
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return undef unless index($mhead->{'subject'}, 'Undeliverable Mail: "') == 0;
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my $dscontents = [__PACKAGE__->DELIVERYSTATUS];
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my @hasdivided = split("\n", $$mbody);
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my $rfc822part = ''; # (String) message/rfc822-headers part
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my $rfc822list = []; # (Array) Each line in message/rfc822 part string
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my $blanklines = 0; # (Integer) The number of blank lines
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my $readcursor = 0; # (Integer) Points the current cursor position
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my $recipients = 0; # (Integer) The number of 'Final-Recipient' header
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my $boundary00 = ''; # (String) Boundary string
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my $endoferror = 0; # (Integer) Flag for the end of error message
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my $v = undef;
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$boundary00 = Sisimai::MIME->boundary($mhead->{'content-type'});
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if( $boundary00 ) {
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# Convert to regular expression
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$boundary00 = '--'.$boundary00.'--';
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$MarkingsOf->{'rfc822'} = qr/\A\Q$boundary00\E\z/;
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} else {
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$MarkingsOf->{'rfc822'} = qr/\A[ \t]*[+]+[ \t]*\z/;
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}
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for my $e ( @hasdivided ) {
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# Read each line between the start of the message and the start of rfc822 part.
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unless( $readcursor ) {
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# Beginning of the bounce message or delivery status part
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$readcursor |= $Indicators->{'deliverystatus'} if $e eq $StartingOf->{'message'}->[0];
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}
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unless( $readcursor & $Indicators->{'message-rfc822'} ) {
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# Beginning of the original message part
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$readcursor |= $Indicators->{'message-rfc822'} if $e =~ $MarkingsOf->{'rfc822'};
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}
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if( $readcursor & $Indicators->{'message-rfc822'} ) {
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# After "message/rfc822"
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unless( length $e ) {
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$blanklines++;
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last if $blanklines > 1;
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next;
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}
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push @$rfc822list, $e;
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} else {
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# Before "message/rfc822"
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next unless $readcursor & $Indicators->{'deliverystatus'};
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last if $e =~ $MarkingsOf->{'rfc822'};
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# Your message:
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# From: originalsender@example.com
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# Subject: ...
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#
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# Could not be delivered because of
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#
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# 550 5.1.1 User unknown
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#
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# The following recipients were affected:
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# dummyuser@blabla.xxxxxxxxxxxx.com
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$v = $dscontents->[-1];
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if( $e =~ /\A[ \t]{4}([^ ]+[@][^ ]+)\z/ ) {
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# The following recipients were affected:
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# dummyuser@blabla.xxxxxxxxxxxx.com
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if( $v->{'recipient'} ) {
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# There are multiple recipient addresses in the message body.
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push @$dscontents, __PACKAGE__->DELIVERYSTATUS;
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$v = $dscontents->[-1];
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}
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$v->{'recipient'} = $1;
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$recipients++;
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} else {
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# Get error message lines
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if( $e eq $StartingOf->{'error'}->[0] ) {
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# Could not be delivered because of
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#
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# 550 5.1.1 User unknown
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$v->{'diagnosis'} = $e;
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} elsif( $v->{'diagnosis'} && ! $endoferror ) {
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# Append error messages
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$endoferror = 1 if index($e, $StartingOf->{'rcpts'}->[0]) == 0;
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next if $endoferror;
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$v->{'diagnosis'} .= ' '.$e;
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} else {
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# Additional Information
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# ======================
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# Original Sender: <originalsender@example.com>
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# Sender-MTA: <10.11.12.13>
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# Remote-MTA: <10.0.0.1>
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# Reporting-MTA: <relay.xxxxxxxxxxxx.com>
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# MessageName: <B549996730000.000000000001.0003.mml>
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# Last-Attempt-Date: <16:21:07 seg, 22 Dezembro 2014>
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if( $e =~ /\AOriginal Sender:[ \t]+[<](.+)[>]\z/ ) {
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# Original Sender: <originalsender@example.com>
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# Use this line instead of "From" header of the original
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# message.
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push @$rfc822list, 'From: '.$1;
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} elsif( $e =~ /\ASender-MTA:[ \t]+[<](.+)[>]\z/ ) {
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# Sender-MTA: <10.11.12.13>
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$v->{'lhost'} = $1;
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} elsif( $e =~ /\AReporting-MTA:[ \t]+[<](.+)[>]\z/ ) {
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# Reporting-MTA: <relay.xxxxxxxxxxxx.com>
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$v->{'rhost'} = $1;
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}
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}
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}
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} # End of if: rfc822
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}
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return undef unless $recipients;
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for my $e ( @$dscontents ) {
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$e->{'diagnosis'} = Sisimai::String->sweep($e->{'diagnosis'});
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$e->{'agent'} = __PACKAGE__->smtpagent;
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}
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$rfc822part = Sisimai::RFC5322->weedout($rfc822list);
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return { 'ds' => $dscontents, 'rfc822' => $$rfc822part };
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}
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1;
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__END__
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=encoding utf-8
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=head1 NAME
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Sisimai::Bite::Email::MailMarshalSMTP - bounce mail parser class for
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C<Trustwave Secure Email Gateway>.
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=head1 SYNOPSIS
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use Sisimai::Bite::Email::MailMarshalSMTP;
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=head1 DESCRIPTION
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Sisimai::Bite::Email::MailMarshalSMTP parses a bounce email which created by
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C<Trustwave Secure Email Gateway>: formerly MailMarshal SMTP.
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Methods in the module are called from only Sisimai::Message.
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=head1 CLASS METHODS
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=head2 C<B<description()>>
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C<description()> returns description string of this module.
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print Sisimai::Bite::Email::MailMarshalSMTP->description;
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=head2 C<B<smtpagent()>>
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C<smtpagent()> returns MTA name.
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print Sisimai::Bite::Email::MailMarshalSMTP->smtpagent;
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=head2 C<B<scan(I<header data>, I<reference to body string>)>>
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C<scan()> method parses a bounced email and return results as a array reference.
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See Sisimai::Message for more details.
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=head1 AUTHOR
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azumakuniyuki
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=head1 COPYRIGHT
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Copyright (C) 2014-2018 azumakuniyuki, All rights reserved.
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=head1 LICENSE
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This software is distributed under The BSD 2-Clause License.
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=cut
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