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package C4::Scrubber;
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA

use Carp;
use HTML::Scrubber;

use Koha;
use C4::Context;
use C4::Debug;

use vars qw($VERSION @ISA);
use vars qw(%scrubbertypes);

$VERSION = 0.02;

%scrubbertypes = (
    default => {}, # place holder, default settings are below as fallbacks in call to constructor
    tag => {}, # uses defaults
    comment => {
        allow => [qw( br b i em big small strong )],
    },
    staff => {
        default => [ 1 =>{'*'=>1} ],
        comment => 1,
    },
    );


sub new {
my $fakeself = shift; # not really OO, we return an HTML::Scrubber object.
my $type = (@_) ? shift : 'default';
exists $scrubbertypes{$type} or croak "New called with unrecognized type '$type'";
$debug and print STDERR "Building new Scrubber of type '$type'\n";
my $settings = $scrubbertypes{$type};
my $scrubber = HTML::Scrubber->new(
allow => exists $settings->{allow} ? $settings->{allow} : [],
rules => exists $settings->{rules} ? $settings->{rules} : [],
default => exists $settings->{default} ? $settings->{default} : [ 0 =>{'*'=>0} ],
comment => exists $settings->{comment} ? $settings->{comment} : 0,
process => 0,
);
return $scrubber;
}


1;
__END__

=head1 C4::Sanitize

Standardized wrapper with settings for building HTML::Scrubber tailored to various koha inputs.
More verbose debugging messages are sent in the presence of non-zero $ENV{"DEBUG"}.

The default is to scrub everything, leaving no markup at all. This is compatible with the expectations
for Tags.

=head2

=head3 TO DO: Add real perldoc

=head2

=cut
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