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+package HTTP::Cookies::Microsoft;
+
+use strict;
+
+use vars qw(@ISA $VERSION);
+
+$VERSION = "6.00";
+
+require HTTP::Cookies;
+@ISA=qw(HTTP::Cookies);
+
+sub load_cookies_from_file
+{
+ my ($file) = @_;
+ my @cookies;
+ my ($key, $value, $domain_path, $flags, $lo_expire, $hi_expire);
+ my ($lo_create, $hi_create, $sep);
+
+ open(COOKIES, $file) || return;
+
+ while ($key = <COOKIES>)
+ {
+ chomp($key);
+ chomp($value = <COOKIES>);
+ chomp($domain_path= <COOKIES>);
+ chomp($flags = <COOKIES>); # 0x0001 bit is for secure
+ chomp($lo_expire = <COOKIES>);
+ chomp($hi_expire = <COOKIES>);
+ chomp($lo_create = <COOKIES>);
+ chomp($hi_create = <COOKIES>);
+ chomp($sep = <COOKIES>);
+
+ if (!defined($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 = $` . "\\";
+ }
+
+ local(*INDEX, $_);
+
+ open(INDEX, $cookie_index) || return;
+ binmode(INDEX);
+ if (256 != read(INDEX, $data, 256))
+ {
+ warn "$cookie_index file is not large enough";
+ close(INDEX);
+ 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', $data);
+
+ if (($sig !~ /^Client UrlCache MMF Ver 5\.2/) || # check that sig is valid (only tested in IE6.0)
+ (0x4000 != $size))
+ {
+ warn "$cookie_index ['$sig' $size] does not seem to contain cookies";
+ close(INDEX);
+ return;
+ }
+
+ if (0 == seek(INDEX, $size, 0)) # move the file ptr to start of the first record
+ {
+ close(INDEX);
+ 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(INDEX, $data, 256))
+ {
+ # each record starts with a 4-byte signature
+ # and a count (little-endian DWORD) of 0x80 byte sectors for the record
+ ($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) && ($size != 2))
+ {
+ if (0 == seek(INDEX, ($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(INDEX, $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+86400, 0);
+ }
+ }
+ }
+
+ close(INDEX);
+
+ 1;
+}
+
+1;
+
+__END__
+
+=head1 NAME
+
+HTTP::Cookies::Microsoft - access to Microsoft cookies files
+
+=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
+
+Copyright 2002 Johnny Lee
+
+This library is free software; you can redistribute it and/or
+modify it under the same terms as Perl itself.
+
+=cut
+
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