save_servers.cgi

BIND 9 dynamic DNS webmin module. This module supports both static and dynamic zones, and IPv4 and I

#! /usr/bin/perl

#
#    B9DDNS - BIND 9 dynamic DNS webmin module.
#    Copyright (C) 2003 John Horne. <[e-mail]>
#
#    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, write to the Free Software
#    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#

#
# Update all the server directives.
#

use strict;
no strict 'vars';

require './b9ddns-lib.pl';


my $i = 0;

my $conf = my $ip = '';

my @servers = my @keys = my @old = ();


%access = &get_module_acl();

unless ($access{'defaults'}) {
	&terror('servers_ecannot');
}


&error_setup($text{'servers_err'});

&ReadParse();

&lock_file($config{'chroot'} . $config{'named_conf'});

$conf = &get_config();

@old = &find('server', $conf);


for ($i = 0; defined($ip = $in{"ip_$i"}); $i++) {
	next unless ($ip);

	if (&check_ipaddress($ip)) {
		$ip = &compress_ip($ip);
	}
	elsif (&check_ip6address($ip)) {
		$ip = &compress_ip6($ip);
	}
	else {
		&terror('servers_eip', $ip);
	}

	if ($in{"trans_$i"} == 1) {
		unless ($in{"transfers_$i"}) {
			&terror('servers_etrans_missing');
		}
		elsif ($in{"transfers_$i"} =~ /\D/o) {
			&terror('servers_etrans', $in{"transfers_$i"});
		}
	}


	local $server = { 'name' => 'server', 'type' => 1 };

	$server->{'members'} = $old[$i] ? $old[$i]->{'members'} : [ ];

	$server->{'values'} = [ $ip ];


	if ($in{"bogus_$i"} == 1) {
		&save_directive($server, 'bogus',
			[ { 'name' => 'bogus', 'values' => [ 'yes' ] } ], 1, 1);
	}
	elsif ($in{"bogus_$i"} == 0) {
		&save_directive($server, 'bogus',
			[ { 'name' => 'bogus', 'values' => [ 'no' ] } ], 1, 1);
	}
	else {
		&save_directive($server, 'bogus', [ ], 0);
	}


	if ($in{"edns_$i"} == 1) {
		&save_directive($server, 'edns',
			[ { 'name' => 'edns', 'values' => [ 'yes' ] } ], 1, 1);
	}
	elsif ($in{"edns_$i"} == 0) {
		&save_directive($server, 'edns',
			[ { 'name' => 'edns', 'values' => [ 'no' ] } ], 1, 1);
	}
	else {
		&save_directive($server, 'edns', [ ], 0);
	}


	if ($in{"format_$i"} == 1) {
		&save_directive($server, 'transfer-format',
				    [ { 'name' => 'transfer-format',
					'values' => [ 'one-answer' ] } ], 1, 1);
	}
	elsif ($in{"format_$i"} == 0) {
		&save_directive($server, 'transfer-format',
			    [ { 'name' => 'transfer-format',
				'values' => [ 'many-answers' ] } ], 1, 1);
	}
	else {
		&save_directive($server, 'transfer-format', [ ], 0);
	}


	if ($in{"provide_ixfr_$i"} == 1) {
		&save_directive($server, 'provide-ixfr',
				    [ { 'name' => 'provide-ixfr',
					'values' => [ 'yes' ] } ], 1, 1);
	}
	elsif ($in{"provide_ixfr_$i"} == 0) {
		&save_directive($server, 'provide-ixfr',
			    [ { 'name' => 'provide-ixfr',
				'values' => [ 'no' ] } ], 1, 1);
	}
	else {
		&save_directive($server, 'provide-ixfr', [ ], 0);
	}


	if ($in{"request_ixfr_$i"} == 1) {
		&save_directive($server, 'request-ixfr',
				    [ { 'name' => 'request-ixfr',
					'values' => [ 'yes' ] } ], 1, 1);
	}
	elsif ($in{"request_ixfr_$i"} == 0) {
		&save_directive($server, 'request-ixfr',
			    [ { 'name' => 'request-ixfr',
				'values' => [ 'no' ] } ], 1, 1);
	}
	else {
		&save_directive($server, 'request-ixfr', [ ], 0);
	}


	if ($in{"trans_$i"} == 0) {
		&save_directive($server, 'transfers', [ ], 0);
	}
	else {
		&save_directive($server, 'transfers',
			[ { 'name' => 'transfers',
			    'values' => [ $in{"transfers_$i"} ] } ], 1, 1);
	}


	@keys = split(/\0/, $in{"keys_$i"});

	unless (@keys) {
		&save_directive($server, 'keys', [ ], 0);
	}
	elsif (scalar(@keys) > 1) {
		&terror('servers_key_max');
	}
	else {
		local @members = map { { 'name' => $_ } } @keys;

		&save_directive($server, 'keys',
					[ { 'name' => 'keys', 'type' => 1,
					    'members' => \@members } ], 1, 1);
	}

	push(@servers, $server);
}


&save_directive(&get_config_parent(), 'server', \@servers, 0);


&flush_file_lines();

&unlock_file($config{'chroot'} . $config{'named_conf'});


&webmin_log('servers', undef, undef, \%in);

&redirect('');

exit;