C4/Scrubber.pm

   1 package C4::Scrubber;
   2 # This file is part of Koha.
   3 #
   4 # Koha is free software; you can redistribute it and/or modify it under the
   5 # terms of the GNU General Public License as published by the Free Software
   6 # Foundation; either version 2 of the License, or (at your option) any later
   7 # version.
   8 #
   9 # Koha is distributed in the hope that it will be useful, but WITHOUT ANY
  10 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  11 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License along with
  14 # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  15 # Suite 330, Boston, MA  02111-1307 USA
  16
  17 use strict;
  18 use warnings;
  19 use Carp;
  20 use HTML::Scrubber;
  21
  22 use C4::Context;
  23 use C4::Debug;
  24
  25 use vars qw($VERSION @ISA);
  26 use vars qw(%scrubbertypes $scrubbertype);
  27
  28 BEGIN {
  29         $VERSION = 0.02;
  30         # @ISA = qw(HTML::Scrubber);
  31 }
  32
  33 INIT {
  34         %scrubbertypes = (
  35                 default => {},  # place holder, default settings are below as fallbacks in call to constructor
  36                     tag => {},  # uses defaults
  37                 comment => {
  38                         allow   => [qw( br b i em big small strong )],
  39                 },
  40                 staff   => {
  41                         default => [ 1 =>{'*'=>1} ],
  42                         comment => 1,
  43                 },
  44         );
  45 }
  46
  47
  48 sub new {
  49         my $fakeself = shift;   # not really OO, we return an HTML::Scrubber object.
  50         my $type  = (@_) ? shift : 'default';
  51         exists $scrubbertypes{$type} or croak "New called with unrecognized type '$type'";
  52         $debug and print STDERR "Building new Scrubber of type '$type'\n";
  53         my $settings = $scrubbertypes{$type};
  54         my $scrubber = HTML::Scrubber->new(
  55                 allow   => exists $settings->{allow}   ? $settings->{allow}   : [],
  56                 rules   => exists $settings->{rules}   ? $settings->{rules}   : [],
  57                 default => exists $settings->{default} ? $settings->{default} : [ 0 =>{'*'=>0} ],
  58                 comment => exists $settings->{comment} ? $settings->{comment} : 0,
  59                 process => 0,
  60         );
  61         return $scrubber;
  62 }
  63
  64
  65 1;
  66 __END__
  67
  68 =head1 C4::Sanitize
  69
  70 Standardized wrapper with settings for building HTML::Scrubber tailored to various koha inputs.
  71 More verbose debugging messages are sent in the presence of non-zero $ENV{"DEBUG"}.
  72
  73 The default is to scrub everything, leaving no markup at all.  This is compatible with the expectations
  74 for Tags.
  75
  76 =head2 TODO: Add real perldoc
  77
  78 =cut
  79