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package PAR::Filter::Obfuscate;
use 5.006;
use strict;
use warnings;
use base 'PAR::Filter';
use File::Temp ();
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=head1 NAME
PAR::Filter::Obfuscate - Obfuscating filter
=head1 SYNOPSIS
    PAR::Filter::Obfuscate->apply(\$code); # transforms $code
=head1 DESCRIPTION
This filter uses L<B::Deobfuscate> (available separately from CPAN) to
turn the script into comment-free, architecture-independent Perl code
with mangled variable names.
=head1 CAVEATS
A harmless message will be displayed during C<pp>:
    /tmp/8ycSoLaSI1 syntax OK
Please just ignore it. :-)
=cut
sub apply {
    my $ref = $_[1];
    my ($fh, $in_file) = File::Temp::tempfile();
    print $fh $$ref;
    close $fh;
    require B::Deobfuscate;
    $$ref = `$^X -MO=Deobfuscate $in_file`;
    warn "Cannot transform $in_file$! ($?)\n" if $?;
}
1;
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=head1 SEE ALSO
L<PAR::Filter>, L<B::Deobfuscate>, L<PAR::Filter::Crypto>
=head1 AUTHORS
Audrey Tang E<lt>cpan@audreyt.orgE<gt>
You can write
to the mailing list at E<lt>par@perl.orgE<gt>, or send an empty mail to
E<lt>par-subscribe@perl.orgE<gt> to participate in the discussion.
Please submit bug reports to E<lt>bug-par-packer@rt.cpan.orgE<gt>.
=head1 COPYRIGHT
Copyright 2003-2009 by Audrey Tang E<lt>cpan@audreyt.orgE<gt>.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
See F<LICENSE>.
=cut