213 lines
7.1 KiB
Perl
213 lines
7.1 KiB
Perl
package Sisimai::Bite::Email::IMailServer;
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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' => [''], # Blank line
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'rfc822' => ['Original message follows.'],
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'error' => ['Body of message generated response:'],
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};
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my $ReSMTP = {
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'conn' => qr/(?:SMTP connection failed,|Unexpected connection response from server:)/,
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'ehlo' => qr|Unexpected response to EHLO/HELO:|,
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'mail' => qr|Server response to MAIL FROM:|,
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'rcpt' => qr|Additional RCPT TO generated following response:|,
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'data' => qr|DATA command generated response:|,
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};
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my $ReFailures = {
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'hostunknown' => qr/Unknown host/,
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'userunknown' => qr/\A(?:Unknown user|Invalid final delivery userid)/,
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'mailboxfull' => qr/\AUser mailbox exceeds allowed size/,
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'securityerr' => qr/\ARequested action not taken: virus detected/,
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'undefined' => qr/\Aundeliverable to/,
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'expired' => qr/\ADelivery failed \d+ attempts/,
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};
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# X-Mailer: <SMTP32 v8.22>
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sub headerlist { return ['X-Mailer'] }
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sub description { 'IPSWITCH IMail Server' }
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sub scan {
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# Detect an error from IMailServer
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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 v4.1.1
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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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my $match = 0;
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$match ||= 1 if $mhead->{'subject'} =~ /\AUndeliverable Mail[ ]*\z/;
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$match ||= 1 if defined $mhead->{'x-mailer'} && index($mhead->{'x-mailer'}, '<SMTP32 v') == 0;
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return undef unless $match;
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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 $v = undef;
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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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if( $e eq $StartingOf->{'message'}->[0] ) {
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$readcursor |= $Indicators->{'deliverystatus'};
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next;
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}
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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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if( $e eq $StartingOf->{'rfc822'}->[0] ) {
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$readcursor |= $Indicators->{'message-rfc822'};
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next;
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}
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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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last if $readcursor & $Indicators->{'message-rfc822'};
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# Unknown user: kijitora@example.com
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#
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# Original message follows.
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$v = $dscontents->[-1];
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if( $e =~ /\A([^ ]+)[ ]([^ ]+)[:][ \t]*([^ ]+[@][^ ]+)/ ) {
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# Unknown user: kijitora@example.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->{'diagnosis'} = $1.' '.$2;
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$v->{'recipient'} = $3;
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$recipients++;
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} elsif( $e =~ /\Aundeliverable[ ]+to[ ]+(.+)\z/ ) {
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# undeliverable to kijitora@example.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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# Other error message text
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$v->{'alterrors'} //= '';
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$v->{'alterrors'} .= ' '.$e if $v->{'alterrors'};
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$v->{'alterrors'} = $e if index($e, $StartingOf->{'error'}->[0]) > -1;
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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->{'agent'} = __PACKAGE__->smtpagent;
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if( exists $e->{'alterrors'} && $e->{'alterrors'} ) {
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# Copy alternative error message
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$e->{'diagnosis'} = $e->{'alterrors'}.' '.$e->{'diagnosis'};
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$e->{'diagnosis'} = Sisimai::String->sweep($e->{'diagnosis'});
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delete $e->{'alterrors'};
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}
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$e->{'diagnosis'} = Sisimai::String->sweep($e->{'diagnosis'});
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COMMAND: for my $r ( keys %$ReSMTP ) {
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# Detect SMTP command from the message
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next unless $e->{'diagnosis'} =~ $ReSMTP->{ $r };
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$e->{'command'} = uc $r;
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last;
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}
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SESSION: for my $r ( keys %$ReFailures ) {
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# Verify each regular expression of session errors
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next unless $e->{'diagnosis'} =~ $ReFailures->{ $r };
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$e->{'reason'} = $r;
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last;
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}
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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::IMailServer - bounce mail parser class for C<IMail Server>.
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=head1 SYNOPSIS
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use Sisimai::Bite::Email::IMailServer;
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=head1 DESCRIPTION
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Sisimai::Bite::Email::IMailServer parses a bounce email which created by
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C<Ipswitch IMail Server>. Methods in the module are called from only
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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::IMailServer->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::IMailServer->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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