/usr/share/perl5/Mail/ListDetector/Detector/RFC2919.pm is in libmail-listdetector-perl 1.03+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | package Mail::ListDetector::Detector::RFC2919;
use strict;
use base qw(Mail::ListDetector::Detector::Base);
use Mail::ListDetector::List;
use Mail::ListDetector::Detector::RFC2369;
use URI;
use Carp;
sub DEBUG { 0 }
sub match {
my $self = shift;
my $message = shift;
print "Got message $message\n" if DEBUG;
carp ("Mail::ListDetector::Detector::RFC2919 - no message supplied") unless defined($message);
use Email::Abstract;
my $list_id = Email::Abstract->get_header($message, 'List-ID');
return undef unless defined($list_id);
$list_id =~ m/<(.+)>/ or return undef;
my $listname = $1;
my $rfc2369 = new Mail::ListDetector::Detector::RFC2369;
my $list = ( $rfc2369->match($message) or new Mail::ListDetector::List );
$list->listsoftware('RFC2919');
$list->listname($listname);
return $list;
}
1;
__END__
=pod
=head1 NAME
Mail::ListDetector::Detector::RFC2919 - RFC2919 message detector
=head1 SYNOPSIS
use Mail::ListDetector::Detector::RFC2919;
=head1 DESCRIPTION
An implementation of a mailing list detector, for RFC2919 compliant
mailing lists, i.e., those with List-ID lines in the header.
=head1 METHODS
=head2 new()
Inherited from Mail::ListDetector::Detector::Base.
=head2 match()
Accepts a Mail::Internet object and returns either a
Mail::ListDetector::List object if it is a post to a RFC2919 compliant
mailing list, or C<undef>.
Since RFC2919 only specifies a (mostly) unique ID for a mailing list,
Mail::ListDetector::Detector::RFC2369 is used to attempt to extract
further information about the list.
=head1 BUGS
No known bugs.
=head1 AUTHOR
Michael Stevens - michael@etla.org,
Peter Oliver - p.d.oliver@mavit.freeserve.co.uk.
=cut
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