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+# files/non-free -- lintian check script -*- perl -*-
+
+# Copyright (C) 1998 Christian Schwarz and Richard Braakman
+# Copyright (C) 1999 Joey Hess
+# Copyright (C) 2000 Sean 'Shaleh' Perry
+# Copyright (C) 2002 Josip Rodin
+# Copyright (C) 2007 Russ Allbery
+# Copyright (C) 2013-2018 Bastien ROUCARIES
+# Copyright (C) 2017-2020 Chris Lamb <lamby@debian.org>
+# Copyright (C) 2020-2021 Felix Lechner
+#
+# This program 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.
+#
+# This program 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 this program. If not, you can find it on the World Wide
+# Web at https://www.gnu.org/copyleft/gpl.html, or write to the Free
+# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+package Lintian::Check::Files::NonFree;
+
+use v5.20;
+use warnings;
+use utf8;
+
+use Const::Fast;
+use List::SomeUtils qw(any);
+use Unicode::UTF8 qw(encode_utf8);
+
+const my $MD5SUM_DATA_FIELDS => 5;
+
+use Moo;
+use namespace::clean;
+
+with 'Lintian::Check';
+
+sub _md5sum_based_lintian_data {
+ my ($self, $filename) = @_;
+
+ my $data = $self->data->load($filename,qr/\s*\~\~\s*/);
+
+ my %md5sum_data;
+
+ for my $md5sum ($data->all) {
+
+ my $value = $data->value($md5sum);
+
+ my ($sha1, $sha256, $name, $reason, $link)
+ = split(/ \s* ~~ \s* /msx, $value, $MD5SUM_DATA_FIELDS);
+
+ die encode_utf8("Syntax error in $filename $.")
+ if any { !defined } ($sha1, $sha256, $name, $reason, $link);
+
+ $md5sum_data{$md5sum} = {
+ 'sha1' => $sha1,
+ 'sha256' => $sha256,
+ 'name' => $name,
+ 'reason' => $reason,
+ 'link' => $link,
+ };
+ }
+
+ return \%md5sum_data;
+}
+
+has NON_FREE_FILES => (
+ is => 'rw',
+ lazy => 1,
+ default => sub {
+ my ($self) = @_;
+
+ return $self->_md5sum_based_lintian_data('cruft/non-free-files');
+ }
+);
+
+sub visit_patched_files {
+ my ($self, $item) = @_;
+
+ return
+ unless $item->is_file;
+
+ # skip packages that declare non-free contents
+ return
+ if $self->processable->is_non_free;
+
+ my $nonfree = $self->NON_FREE_FILES->{$item->md5sum};
+ if (defined $nonfree) {
+ my $usualname = $nonfree->{'name'};
+ my $reason = $nonfree->{'reason'};
+ my $link = $nonfree->{'link'};
+
+ $self->pointed_hint(
+ 'license-problem-md5sum-non-free-file',
+ $item->pointer, "usual name is $usualname.",
+ $reason, "See also $link."
+ );
+ }
+
+ return;
+}
+
+# A list of known non-free flash executables
+my @flash_nonfree = (
+ qr/(?i)dewplayer(?:-\w+)?\.swf$/,
+ qr/(?i)(?:mp3|flv)player\.swf$/,
+ # Situation needs to be clarified:
+ # qr,(?i)multipleUpload\.swf$,
+ # qr,(?i)xspf_jukebox\.swf$,
+);
+
+sub visit_installed_files {
+ my ($self, $item) = @_;
+
+ return
+ unless $item->is_file;
+
+ # skip packages that declare non-free contents
+ return
+ if $self->processable->is_non_free;
+
+ # non-free .swf files
+ $self->pointed_hint('non-free-flash', $item->pointer)
+ if any { $item->name =~ m{/$_} } @flash_nonfree;
+
+ return;
+}
+
+1;
+
+# Local Variables:
+# indent-tabs-mode: nil
+# cperl-indent-level: 4
+# End:
+# vim: syntax=perl sw=4 sts=4 sr et