File Coverage

lib/Sisimai/Lhost/Verizon.pm

Criterion	Covered	Total	%
statement	90	94	95.7
branch	48	58	82.7
condition	7	16	43.7
subroutine	6	6	100.0
pod	2	2	100.0
total	153	176	86.9

package Sisimai::Lhost::Verizon;
use parent 'Sisimai::Lhost';
use feature ':5.10';
use strict;
use warnings;

sub description { 'Verizon Wireless: https://www.verizonwireless.com' }
sub make {
    # Detect an error from Verizon
    # @param    [Hash] mhead    Message headers of a bounce email
    # @param    [String] mbody  Message body of a bounce email
    # @return   [Hash]          Bounce data list and message/rfc822 part
    # @return   [Undef]         failed to parse or the arguments are missing
    # @since v4.0.0
    my $class = shift;
    my $mhead = shift // return undef;
    my $mbody = shift // return undef;
    my $match = -1;

    while(1) {
        # Check the value of "From" header
        # 'subject' => qr/Undeliverable Message/,
        last unless grep { rindex($_, '.vtext.com (') > -1 } @{ $mhead->{'received'} };
        $match = 1 if $mhead->{'from'} eq '[e-mail]';
        $match = 0 if $mhead->{'from'} =~ /[<]?sysadmin[@].+[.]vzwpix[.]com[>]?\z/;
        last;
    }
    return undef if $match < 0;

    state $indicators = __PACKAGE__->INDICATORS;

    my $rebackbone = qr/__BOUNDARY_STRING_HERE__/m;
    my $dscontents = [__PACKAGE__->DELIVERYSTATUS];
    my $emailsteak = [];
    my $readcursor = 0;     # (Integer) Points the current cursor position
    my $recipients = 0;     # (Integer) The number of 'Final-Recipient' header
    my $senderaddr = '';    # (String) Sender address in the message body
    my $subjecttxt = '';    # (String) Subject of the original message

    my $startingof = {};    # (Ref->Hash) Delimiter strings
    my $markingsof = {};    # (Ref->Hash) Delimiter patterns
    my $messagesof = {};    # (Ref->Hash) Error message patterns
    my $v = undef;

    if( $match == 1 ) {
        # vtext.com
        $markingsof = { 'message' => qr/\AError:[ \t]/ };
        $messagesof = {
            # The attempted recipient address does not exist.
            'userunknown' => ['550 - Requested action not taken: no such user here'],
        };

        if( my $boundary00 = Sisimai::MIME->boundary($mhead->{'content-type'}, 1) ) {
            # Convert to regular expression
            $rebackbone = qr/^\Q$boundary00\E/m;
        }

        $emailsteak = Sisimai::RFC5322->fillet($mbody, $rebackbone);
        for my $e ( split("\n", $emailsteak->[0]) ) {
            # Read error messages and delivery status lines from the head of the email
            # to the previous line of the beginning of the original message.
            unless( $readcursor ) {
                # Beginning of the bounce message or delivery status part
                $readcursor |= $indicators->{'deliverystatus'} if $e =~ $markingsof->{'message'};
                next;
            }
            next unless $readcursor & $indicators->{'deliverystatus'};
            next unless length $e;

            # Message details:
            #   Subject: Test message
            #   Sent date: Wed Jun 12 02:21:53 GMT 2013
            #   MAIL FROM: *******@hg.example.com
            #   RCPT TO: *****@vtext.com
            $v = $dscontents->[-1];

            if( $e =~ /\A[ \t]+RCPT TO: (.*)\z/ ) {
                if( $v->{'recipient'} ) {
                    # There are multiple recipient addresses in the message body.
                    push @$dscontents, __PACKAGE__->DELIVERYSTATUS;
                    $v = $dscontents->[-1];
                }
                $v->{'recipient'} = $1;
                $recipients++;
                next;

            } elsif( $e =~ /\A[ \t]+MAIL FROM:[ \t](.+)\z/ ) {
                #   MAIL FROM: *******@hg.example.com
                $senderaddr ||= $1;

            } elsif( $e =~ /\A[ \t]+Subject:[ \t](.+)\z/ ) {
                #   Subject:
                $subjecttxt ||= $1;

            } else {
                # 550 - Requested action not taken: no such user here
                $v->{'diagnosis'} = $e if $e =~ /\A(\d{3})[ \t][-][ \t](.*)\z/;
            }
        }
    } else {
        # vzwpix.com
        $startingof = { 'message' => ['Message could not be delivered to mobile'] };
        $messagesof = { 'userunknown' => ['No valid recipients for this MM'] };

        if( my $boundary00 = Sisimai::MIME->boundary($mhead->{'content-type'}, 1) ) {
            # Convert to regular expression
            $rebackbone = qr/^\Q$boundary00\E/m;
        }

        $emailsteak = Sisimai::RFC5322->fillet($mbody, $rebackbone);
        for my $e ( split("\n", $emailsteak->[0]) ) {
            # Read error messages and delivery status lines from the head of the email
            # to the previous line of the beginning of the original message.
            unless( $readcursor ) {
                # Beginning of the bounce message or delivery status part
                $readcursor |= $indicators->{'deliverystatus'} if index($e, $startingof->{'message'}->[0]) == 0;
                next;
            }
            next unless $readcursor & $indicators->{'deliverystatus'};
            next unless length $e;

            # Original Message:
            # From: kijitora
            # To: [e-mail]
            # Subject: test for bounce
            # Date:  Wed, 20 Jun 2013 10:29:52 +0000
            $v = $dscontents->[-1];

            if( $e =~ /\ATo:[ \t]+(.*)\z/ ) {
                if( $v->{'recipient'} ) {
                    # There are multiple recipient addresses in the message body.
                    push @$dscontents, __PACKAGE__->DELIVERYSTATUS;
                    $v = $dscontents->[-1];
                }
                $v->{'recipient'} = Sisimai::Address->s3s4($1);
                $recipients++;
                next;

            } elsif( $e =~ /\AFrom:[ \t](.+)\z/ ) {
                # From: kijitora
                $senderaddr ||= Sisimai::Address->s3s4($1);

            } elsif( $e =~ /\ASubject:[ \t](.+)\z/ ) {
                #   Subject:
                $subjecttxt ||= $1;

            } else {
                # Message could not be delivered to mobile.
                # Error: No valid recipients for this MM
                $v->{'diagnosis'} = $e if $e =~ /\AError:[ \t]+(.+)\z/;
            }
        }
    }
    return undef unless $recipients;

    # Set the value of "MAIL FROM:" and "From:"
    $emailsteak->[1] .= sprintf("From: %s\n", $senderaddr) unless $emailsteak->[1] =~ /^From: /m;
    $emailsteak->[1] .= sprintf("Subject: %s\n", $subjecttxt) unless $emailsteak->[1] =~ /^Subject: /m;

    for my $e ( @$dscontents ) {
        $e->{'diagnosis'} = Sisimai::String->sweep($e->{'diagnosis'});

        SESSION: for my $r ( keys %$messagesof ) {
            # Verify each regular expression of session errors
            next unless grep { index($e->{'diagnosis'}, $_) > -1 } @{ $messagesof->{ $r } };
            $e->{'reason'} = $r;
            last;
        }
    }
    return { 'ds' => $dscontents, 'rfc822' => $emailsteak->[1] };
}

1;
__END__