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✏️ Editing: Microsoft.pm Read Only

package HTTP::Cookies::Microsoft;

use strict;

our $VERSION = '6.11';

require HTTP::Cookies;
our @ISA=qw(HTTP::Cookies);

sub load_cookies_from_file
{
    my ($file) = @_;
    my @cookies;

open (my $fh, '<', $file) || return;

while (my $key = <$fh>) {
        chomp $key;
        my ($value, $domain_path, $flags, $lo_expire, $hi_expire);
        my ($lo_create, $hi_create, $sep);
        chomp($value     = <$fh>);
        chomp($domain_path= <$fh>);
        chomp($flags     = <$fh>); # 0x0001 bit is for secure
        chomp($lo_expire = <$fh>);
        chomp($hi_expire = <$fh>);
        chomp($lo_create = <$fh>);
        chomp($hi_create = <$fh>);
        chomp($sep       = <$fh>);

if (!defined($key) || !defined($value) || !defined($domain_path) ||
            !defined($flags) || !defined($hi_expire) || !defined($lo_expire) ||
            !defined($hi_create) || !defined($lo_create) || !defined($sep) ||
            ($sep ne '*'))
        {
            last;
        }

if ($domain_path =~ /^([^\/]+)(\/.*)$/) {
            my $domain = $1;
            my $path = $2;

push @cookies, {
                KEY => $key, VALUE => $value, DOMAIN => $domain,
                PATH => $path, FLAGS =>$flags, HIXP =>$hi_expire,
                LOXP => $lo_expire, HICREATE => $hi_create,
                LOCREATE => $lo_create
            };
        }
    }

return \@cookies;
}

sub get_user_name
{
	use Win32;
	use locale;
	my $user = lc(Win32::LoginName());

return $user;
}

# MSIE stores create and expire times as Win32 FILETIME,
# which is 64 bits of 100 nanosecond intervals since Jan 01 1601
#
# But Cookies code expects time in 32-bit value expressed
# in seconds since Jan 01 1970
#
sub epoch_time_offset_from_win32_filetime
{
	my ($high, $low) = @_;

#--------------------------------------------------------
	# USEFUL CONSTANT
	#--------------------------------------------------------
	# 0x019db1de 0xd53e8000 is 1970 Jan 01 00:00:00 in Win32 FILETIME
	#
	# 100 nanosecond intervals == 0.1 microsecond intervals

my $filetime_low32_1970 = 0xd53e8000;
	my $filetime_high32_1970 = 0x019db1de;

#------------------------------------
	# ALGORITHM
	#------------------------------------
	# To go from 100 nanosecond intervals to seconds since 00:00 Jan 01 1970:
	#
	# 1. Adjust 100 nanosecond intervals to Jan 01 1970 base
	# 2. Divide by 10 to get to microseconds (1/millionth second)
	# 3. Divide by 1000000 (10 ^ 6) to get to seconds
	#
	# We can combine Step 2 & 3 into one divide.
	#
	# After much trial and error, I came up with the following code which
	# avoids using Math::BigInt or floating pt, but still gives correct answers

# If the filetime is before the epoch, return 0
	if (($high < $filetime_high32_1970) ||
	    (($high == $filetime_high32_1970) && ($low < $filetime_low32_1970)))
    	{
		return 0;
	}

# Can't multiply by 0x100000000, (1 << 32),
	# without Perl issuing an integer overflow warning
	#
	# So use two multiplies by 0x10000 instead of one multiply by 0x100000000
	#
	# The result is the same.
	#
	my $date1970 = (($filetime_high32_1970 * 0x10000) * 0x10000) + $filetime_low32_1970;
	my $time = (($high * 0x10000) * 0x10000) + $low;

$time -= $date1970;
	$time /= 10000000;

return $time;
}

sub load_cookie
{
	my($self, $file) = @_;
        my $now = time() - $HTTP::Cookies::EPOCH_OFFSET;
	my $cookie_data;

if (-f $file)
        {
		# open the cookie file and get the data
		$cookie_data = load_cookies_from_file($file);

foreach my $cookie (@{$cookie_data})
		{
			my $secure = ($cookie->{FLAGS} & 1) != 0;
			my $expires = epoch_time_offset_from_win32_filetime($cookie->{HIXP}, $cookie->{LOXP});

$self->set_cookie(undef, $cookie->{KEY}, $cookie->{VALUE},
					  $cookie->{PATH}, $cookie->{DOMAIN}, undef,
					  0, $secure, $expires-$now, 0);
		}
	}
}

sub load
{
    my($self, $cookie_index) = @_;
    my $now = time() - $HTTP::Cookies::EPOCH_OFFSET;
    my $cookie_dir = '';
    my $delay_load = (defined($self->{'delayload'}) && $self->{'delayload'});
    my $user_name = get_user_name();
    my $data;

$cookie_index ||= $self->{'file'} || return;
    if ($cookie_index =~ /[\\\/][^\\\/]+$/) {
        $cookie_dir = $` . "\\";
    }

open (my $fh, '<:raw', $cookie_index) || return;
    if (256 != read($fh, $data, 256)) {
        warn "$cookie_index file is not large enough";
        return;
    }

# Cookies' index.dat file starts with 32 bytes of signature
    # followed by an offset to the first record, stored as a little-endian DWORD
    my ($sig, $size) = unpack('a32 V', $data);

# check that sig is valid (only tested in IE6.0)
    if (($sig !~ /^Client UrlCache MMF Ver 5\.2/) || (0x4000 != $size)) {
        warn "$cookie_index ['$sig' $size] does not seem to contain cookies";
        return;
    }

# move the file ptr to start of the first record
    if (0 == seek($fh, $size, 0)) {
        return;
    }

# Cookies are usually stored in 'URL ' records in two contiguous 0x80 byte sectors (256 bytes)
    # so read in two 0x80 byte sectors and adjust if not a Cookie.
    while (256 == read($fh, $data, 256)) {
        # each record starts with a 4-byte signature
        # and a count (little-endian DWORD) of 0x80 byte sectors for the record
        ($sig, $size) = unpack('a4 V', $data);

# Cookies are found in 'URL ' records
        if ('URL ' ne $sig) {
            # skip over uninteresting record: I've seen 'HASH' and 'LEAK' records
            if (($sig eq 'HASH') || ($sig eq 'LEAK')) {
                # '-2' takes into account the two 0x80 byte sectors we've just read in
                if (($size > 0) && ($size != 2)) {
                    if (0 == seek($fh, ($size-2)*0x80, 1)) {
                        # Seek failed. Something's wrong. Gonna stop.
                        last;
                    }
                }
            }
            next;
        }

#$REMOVE Need to check if URL records in Cookies' index.dat will
        #        ever use more than two 0x80 byte sectors
        if ($size > 2) {
            my $more_data = ($size-2)*0x80;

if ($more_data != read($fh, $data, $more_data, 256)) {
                last;
            }
        }

(my $user_name2 = $user_name) =~ s/ /_/g;
        if ($data =~ /Cookie:\Q$user_name\E@([\x21-\xFF]+).*?((?:\Q$user_name\E|\Q$user_name2\E)@[\x21-\xFF]+\.txt)/) {
            my $cookie_file = $cookie_dir . $2; # form full pathname

if (!$delay_load) {
                $self->load_cookie($cookie_file);
            }
            else {
                my $domain = $1;

# grab only the domain name, drop everything from the first dir sep on
                if ($domain =~ m{[\\/]}) {
                    $domain = $`;
                }

# set the delayload cookie for this domain with
                # the cookie_file as cookie for later-loading info
                $self->set_cookie(undef, 'cookie', $cookie_file, '//+delayload', $domain, undef, 0, 0, $now+86_400, 0);
            }
        }
    }

1;
}

=pod

=encoding UTF-8

=head1 NAME

HTTP::Cookies::Microsoft - Access to Microsoft cookies files

=head1 VERSION

version 6.11

=head1 SYNOPSIS

use LWP;
 use HTTP::Cookies::Microsoft;
 use Win32::TieRegistry(Delimiter => "/");
 my $cookies_dir = $Registry->
      {"CUser/Software/Microsoft/Windows/CurrentVersion/Explorer/Shell Folders/Cookies"};

$cookie_jar = HTTP::Cookies::Microsoft->new(
                   file     => "$cookies_dir\\index.dat",
                   'delayload' => 1,
               );
 my $browser = LWP::UserAgent->new;
 $browser->cookie_jar( $cookie_jar );

=head1 DESCRIPTION

This is a subclass of C<HTTP::Cookies> which
loads Microsoft Internet Explorer 5.x and 6.x for Windows (MSIE)
cookie files.

See the documentation for L<HTTP::Cookies>.

=head1 METHODS

The following methods are provided:

=over 4

=item $cookie_jar = HTTP::Cookies::Microsoft->new;

The constructor takes hash style parameters. In addition
to the regular HTTP::Cookies parameters, HTTP::Cookies::Microsoft
recognizes the following:

delayload:       delay loading of cookie data until a request
                   is actually made. This results in faster
                   runtime unless you use most of the cookies
                   since only the domain's cookie data
                   is loaded on demand.

=back

=head1 CAVEATS

Please note that the code DOESN'T support saving to the MSIE
cookie file format.

=head1 AUTHOR

Johnny Lee <typo_pl@hotmail.com>

=head1 COPYRIGHT

This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.

=head1 AUTHOR

Gisle Aas <gisle@activestate.com>

=head1 COPYRIGHT AND LICENSE

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=cut

__END__

#ABSTRACT: Access to Microsoft cookies files