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#!/usr/local/cpanel/3rdparty/bin/perl

# cpanel - scripts/cpdig                           Copyright 2022 cPanel, L.L.C.
#                                                           All rights reserved.
# copyright@cpanel.net                                         http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited

package scripts::cpdig;

use cPstrict;

=encoding utf-8

=head1 NAME

cpdig

=head1 USAGE

cpdig <name> <type> [--verbose]

=head1 DESCRIPTION

This script performs a DNS query using cPanel’s DNS resolver.
Its output should yield the same end results as C<dig +trace $name $type>.

cPanel provides this script solely for diagnostic purposes; no cPanel
& WHM feature requires its use.

=cut

use parent qw( Cpanel::HelpfulScript );

use Cpanel::DNS::Unbound ();
use Cpanel::NameServers  ();

use constant _OPTIONS        => ('verbose');
use constant _ACCEPT_UNNAMED => 1;

exit( __PACKAGE__->new(@ARGV)->run() // 0 ) unless caller;

sub run {
    my ($self) = @_;

my ( $name, $type ) = $self->getopt_unnamed();
    die $self->help() if grep { !$_ } $name, $type;

$type = uc($type);

if ( $type eq 'NS' ) {

# requesting DNS::Unbound is not complete when the NS are not setup correctly

my $list = Cpanel::NameServers::get_nameservers_for_domain($name) // [];
        say $_ for @$list;

return;
    }

my $dns = Cpanel::DNS::Unbound->new();

my $ret = $dns->recursive_queries( [ [ $name, $type ] ] )->[0];

if ( $self->getopt('verbose') ) {
        print STDERR $ret->{debug};
    }

my $data_ar = $ret->{'decoded_data'} || $ret->{result}{data};

my %FORMATTERS = (
        'ARRAY' => sub { "@{$_[0]}" },
        'HASH'  => sub {
            join ' ', map { "$_=$_[0]->{$_}" } sort keys %{ $_[0] };
        }
    );

foreach my $item ( @{$data_ar} ) {
        my $type = ref $item;

if ( $type ne '' && defined $FORMATTERS{$type} ) {
            $self->_print( $FORMATTERS{$type}->($item) . "\n" );
        }
        else {
            $self->_print("$item\n");
        }
    }

return;
}