Files
scripts/Perl OTRS/Kernel/cpan-lib/Sisimai/Bite/Email/SendGrid.pm
2024-10-14 00:08:40 +02:00

251 lines
9.6 KiB
Perl

package Sisimai::Bite::Email::SendGrid;
use parent 'Sisimai::Bite::Email';
use feature ':5.10';
use strict;
use warnings;
my $Indicators = __PACKAGE__->INDICATORS;
my $StartingOf = {
'message' => ['This is an automatically generated message from SendGrid.'],
'rfc822' => ['Content-Type: message/rfc822'],
};
# Return-Path: <apps@sendgrid.net>
# X-Mailer: MIME-tools 5.502 (Entity 5.502)
sub headerlist { return ['Return-Path', 'X-Mailer'] }
sub description { 'SendGrid: http://sendgrid.com/' }
sub scan {
# Detect an error from SendGrid
# @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 v4.0.2
my $class = shift;
my $mhead = shift // return undef;
my $mbody = shift // return undef;
# 'from' => qr/\AMAILER-DAEMON\z/,
return undef unless $mhead->{'return-path'};
return undef unless $mhead->{'return-path'} eq '<apps@sendgrid.net>';
return undef unless $mhead->{'subject'} eq 'Undelivered Mail Returned to Sender';
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 $commandtxt = ''; # (String) SMTP Command name begin with the string '>>>'
my $connvalues = 0; # (Integer) Flag, 1 if all the value of $connheader have been set
my $connheader = {
'date' => '', # The value of Arrival-Date header
};
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( $e eq $StartingOf->{'message'}->[0] ) {
$readcursor |= $Indicators->{'deliverystatus'};
next;
}
}
unless( $readcursor & $Indicators->{'message-rfc822'} ) {
# Beginning of the original message part
if( index($e, $StartingOf->{'rfc822'}->[0]) == 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;
if( $connvalues == scalar(keys %$connheader) ) {
# Final-Recipient: rfc822; kijitora@example.jp
# Original-Recipient: rfc822; kijitora@example.jp
# Action: failed
# Status: 5.1.1
# Diagnostic-Code: 550 5.1.1 <kijitora@example.jp>... User Unknown
$v = $dscontents->[-1];
if( $e =~ /\AFinal-Recipient:[ ]*(?:RFC|rfc)822;[ ]*([^ ]+)\z/ ) {
# Final-Recipient: RFC822; userunknown@example.jp
if( $v->{'recipient'} ) {
# There are multiple recipient addresses in the message body.
push @$dscontents, __PACKAGE__->DELIVERYSTATUS;
$v = $dscontents->[-1];
}
$v->{'recipient'} = $1;
$recipients++;
} elsif( $e =~ /\AAction:[ ]*(.+)\z/ ) {
# Action: failed
$v->{'action'} = lc $1;
} elsif( $e =~ /\AStatus:[ ]*(\d[.]\d+[.]\d+)/ ) {
# Status: 5.1.1
# Status:5.2.0
# Status: 5.1.0 (permanent failure)
$v->{'status'} = $1;
} else {
if( $e =~ /\ADiagnostic-Code:[ ]*(.+)\z/ ) {
# Diagnostic-Code: 550 5.1.1 <userunknown@example.jp>... User Unknown
$v->{'diagnosis'} = $1;
} 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;
}
}
} else {
# This is an automatically generated message from SendGrid.
#
# I'm sorry to have to tell you that your message was not able to be
# delivered to one of its intended recipients.
#
# If you require assistance with this, please contact SendGrid support.
#
# shironekochan:000000:<kijitora@example.jp> : 192.0.2.250 : mx.example.jp:[192.0.2.153] :
# 550 5.1.1 <userunknown@cubicroot.jp>... User Unknown in RCPT TO
#
# ------------=_1351676802-30315-116783
# Content-Type: message/delivery-status
# Content-Disposition: inline
# Content-Transfer-Encoding: 7bit
# Content-Description: Delivery Report
#
# X-SendGrid-QueueID: 959479146
# X-SendGrid-Sender: <bounces+61689-10be-kijitora=example.jp@sendgrid.info>
# Arrival-Date: 2012-12-31 23-59-59
if( $e =~ /.+ in (?:End of )?([A-Z]{4}).*\z/ ) {
# in RCPT TO, in MAIL FROM, end of DATA
$commandtxt = $1;
} elsif( $e =~ /\AArrival-Date:[ ]*(.+)\z/ ) {
# Arrival-Date: Wed, 29 Apr 2009 16:03:18 +0900
next if $connheader->{'date'};
my $arrivaldate = $1;
if( $e =~ /\AArrival-Date: (\d{4})[-](\d{2})[-](\d{2}) (\d{2})[-](\d{2})[-](\d{2})\z/ ) {
# Arrival-Date: 2011-08-12 01-05-05
$arrivaldate .= 'Thu, '.$3.' ';
$arrivaldate .= Sisimai::DateTime->monthname(0)->[int($2) - 1];
$arrivaldate .= ' '.$1.' '.join(':', $4, $5, $6);
$arrivaldate .= ' '.Sisimai::DateTime->abbr2tz('CDT');
}
$connheader->{'date'} = $arrivaldate;
$connvalues++;
}
}
} # End of if: rfc822
} continue {
# Save the current line for the next loop
$p = $e;
}
return undef unless $recipients;
for my $e ( @$dscontents ) {
$e->{'diagnosis'} = Sisimai::String->sweep($e->{'diagnosis'});
# Get the value of SMTP status code as a pseudo D.S.N.
$e->{'status'} = $1.'.0.0' if $e->{'diagnosis'} =~ /\b([45])\d\d[ \t]*/;
if( $e->{'status'} eq '5.0.0' || $e->{'status'} eq '4.0.0' ) {
# Get the value of D.S.N. from the error message or the value of
# Diagnostic-Code header.
my $pseudostatus = Sisimai::SMTP::Status->find($e->{'diagnosis'});
$e->{'status'} = $pseudostatus if $pseudostatus;
}
if( $e->{'action'} eq 'expired' ) {
# Action: expired
$e->{'reason'} = 'expired';
if( ! $e->{'status'} || substr($e->{'status'}, -4, 4) eq '.0.0' ) {
# Set pseudo Status code value if the value of Status is not
# defined or 4.0.0 or 5.0.0.
my $pseudostatus = Sisimai::SMTP::Status->code('expired');
$e->{'status'} = $pseudostatus if $pseudostatus;
}
}
$e->{'agent'} = __PACKAGE__->smtpagent;
$e->{'command'} ||= $commandtxt;
}
$rfc822part = Sisimai::RFC5322->weedout($rfc822list);
return { 'ds' => $dscontents, 'rfc822' => $$rfc822part };
}
1;
__END__
=encoding utf-8
=head1 NAME
Sisimai::Bite::Email::SendGrid - bounce mail parser class for C<SendGrid>.
=head1 SYNOPSIS
use Sisimai::Bite::Email::SendGrid;
=head1 DESCRIPTION
Sisimai::Bite::Email::SendGrid parses a bounce email which created by C<SendGrid>.
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::SendGrid->description;
=head2 C<B<smtpagent()>>
C<smtpagent()> returns MTA name.
print Sisimai::Bite::Email::SendGrid->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