/usr/share/perl5/Email/Date.pm is in libemail-date-perl 1.103-3.
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 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 | package Email::Date;
use strict;
use vars qw[$VERSION @EXPORT @EXPORT_OK];
$VERSION = '1.103';
@EXPORT = qw[find_date format_date];
@EXPORT_OK = qw[format_gmdate];
use base qw[Exporter];
use Date::Parse ();
use Email::Date::Format;
use Time::Piece ();
=head1 NAME
Email::Date - Find and Format Date Headers
=head1 SYNOPSIS
use Email::Date;
my $email = join '', <>;
my $date = find_date($email);
print $date->ymd;
my $header = format_date($date->epoch);
Email::Simple->create(
header => [
Date => $header,
],
body => '...',
);
=head1 DESCRIPTION
RFC 2822 defines the C<Date:> header. It declares the header a required
part of an email message. The syntax for date headers is clearly laid
out. Stil, even a perfectly planned world has storms. The truth is, many
programs get it wrong. Very wrong. Or, they don't include a C<Date:> header
at all. This often forces you to look elsewhere for the date, and hoping
to find something.
For this reason, the tedious process of looking for a valid date has been
encapsulated in this software. Further, the process of creating RFC
compliant date strings is also found in this software.
=head2 FUNCTIONS
=over 4
=item find_date
my $time_piece = find_date $email;
C<find_date> accepts an email message in any format
L<Email::Abstract|Email::Abstract> can understand. It looks through the email
message and finds a date, converting it to a L<Time::Piece|Time::Piece> object.
If it can't find a date, it returns false.
C<find_date> is exported by default.
=cut
sub find_date {
require Email::Abstract;
my $email = Email::Abstract->new($_[0]);
my $date = $email->get_header('Date')
|| _find_date_received($email->get_header('Received'))
|| $email->get_header('Resent-Date');
return unless $date and length $date;
Time::Piece->new(Date::Parse::str2time $date);
}
sub _find_date_received {
return unless defined $_[0] and length $_[0];
my $date = pop;
$date =~ s/.+;//;
$date;
}
=item format_date
my $date = format_date; # now
my $date = format_date( time - 60*60 ); # one hour ago
C<format_date> accepts an epoch value, such as the one returned by C<time>.
It returns a string representing the date and time of the input, as
specified in RFC 2822. If no input value is provided, the current value
of C<time> is used.
C<format_date> is exported by default.
=item format_gmdate
my $date = format_gmdate;
C<format_gmdate> is identical to C<format_date>, but it will return a string
indicating the time in Greenwich Mean Time, rather than local time.
C<format_gmdate> is exported on demand, but not by default.
=cut
BEGIN {
*format_date = \&Email::Date::Format::email_date;
*format_gmdate = \&Email::Date::Format::email_gmdate;
};
1;
__END__
=back
=head1 PERL EMAIL PROJECT
This module is maintained by the Perl Email Project
L<http://emailproject.perl.org/wiki/Email::Date>
=head1 SEE ALSO
L<Email::Abstract>,
L<Time::Piece>,
L<Date::Parse>,
L<perl>.
=head1 AUTHOR
Casey West, <F<casey@geeknest.com>>.
Ricardo SIGNES, <F<rjbs@cpan.org>>.
=head1 COPYRIGHT
Copyright (c) 2004 Casey West. All rights reserved.
This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=cut
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