File Coverage

lib/Sisimai/Reason/VirusDetected.pm

Criterion	Covered	Total	%
statement	28	28	100.0
branch	7	8	87.5
condition	4	4	100.0
subroutine	8	8	100.0
pod	2	4	50.0
total	49	52	94.2

package Sisimai::Reason::VirusDetected;
use v5.26;
use strict;
use warnings;
use Sisimai::SMTP::Command;

sub text  { 'virusdetected' }
sub description { 'Email rejected due to a virus scanner on a destination host' }
sub match {
    # Try to match that the given text and regular expressions
    # @param    [String] argv1  String to be matched with regular expressions
    # @return   [Integer]       0: Did not match
    #                           1: Matched
    # @since v4.22.0
    my $class = shift;
    my $argv1 = shift // return 0;

    state $index = ["it has a potentially executable attachment"];
    state $pairs = [
        ["message was ", "ected", " virus"],
        ["virus", " detected"],
    ];
    return 1 if grep { rindex($argv1, $_) > -1 } @$index;
    return 1 if grep { Sisimai::String->aligned(\$argv1, $_) } @$pairs;
    return 0;
}

sub true {
    # The bounce reason is "virusdetected" or not
    # @param    [Sisimai::Fact] argvs   Object to be detected the reason
    # @return   [Integer]               1: virus detected
    #                                   0: virus was not detected
    # @since v4.22.0
    # @see http://www.ietf.org/rfc/rfc2822.txt
    my $class = shift;
    my $argvs = shift // return 0;

    # The value of "reason" isn't "virusdetected" when the value of "command" is an SMTP command to
    # be sent before the SMTP DATA command because all the MTAs read the headers and the entire
    # message body after the DATA command.
    return 1 if $argvs->{'reason'} eq 'virusdetected';
    return 0 if grep { $argvs->{'command'} eq $_ } Sisimai::SMTP::Command->ExceptDATA->@*;
    return __PACKAGE__->match(lc $argvs->{'diagnosticcode'});
}

1;
__END__