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# files/encoding -- lintian check script -*- perl -*-
# Copyright (C) 2020 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::Encoding;
use v5.20;
use warnings;
use utf8;
use IO::Uncompress::Gunzip qw(gunzip $GunzipError);
use Unicode::UTF8 qw(valid_utf8 encode_utf8);
use Moo;
use namespace::clean;
with 'Lintian::Check';
sub visit_patched_files {
my ($self, $item) = @_;
return
unless $item->name =~ m{^debian/};
return
unless $item->is_file;
return
unless $item->file_type =~ /text$/;
if ($item->name =~ m{^debian/patches/}) {
my $bytes = $item->bytes;
return
unless length $bytes;
my ($header)= split(/^---/m, $bytes, 2);
$self->pointed_hint('national-encoding', $item->pointer,'DEP-3 header')
unless valid_utf8($header);
} else {
$self->pointed_hint('national-encoding', $item->pointer)
unless $item->is_valid_utf8;
}
return;
}
sub visit_control_files {
my ($self, $item) = @_;
return
unless $item->is_file;
return
unless $item->file_type =~ /text$/ || $item->is_script;
$self->pointed_hint('national-encoding', $item->pointer)
unless $item->is_valid_utf8;
return;
}
sub visit_installed_files {
my ($self, $item) = @_;
return
unless $item->is_file;
# this checks debs; most other nat'l encoding tags are for source
# Bug#796170 also suggests limiting paths and including gzip files
# return
# unless $item->name =~ m{^(?:usr/)?s?bin/}
# || $item->name =~ m{^usr/games/}
# || $item->name =~ m{\.(?:p[myl]|php|rb|tcl|sh|txt)(?:\.gz)?$}
# || $item->name =~ m{^usr/share/doc};
if ($item->file_type =~ /text$/) {
$self->pointed_hint('national-encoding', $item->pointer)
unless $item->is_valid_utf8;
}
# for man pages also look at compressed files
if ( $item->name =~ m{^usr/share/man/}
&& $item->file_type =~ /gzip compressed/) {
my $bytes;
my $path = $item->unpacked_path;
gunzip($path => \$bytes)
or die encode_utf8("gunzip $path failed: $GunzipError");
$self->pointed_hint('national-encoding', $item->pointer)
unless valid_utf8($bytes);
}
return;
}
1;
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
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