save_net.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]>
#    Copyright (C) 2004 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.
#

#
# Save global address options.
#

use strict;
no strict 'vars';

require './b9ddns-lib.pl';


my $i = 0;

my $conf = my $options = my $addr = my $dir = my $not = my $port = '';

my @listen = my @qvals = ();


%access = &get_module_acl();

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


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

&ReadParse();

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

$conf = &get_config();


$options = &find('options', $conf);

$options = &create_entry('options', $conf) unless (defined($options));


unless ($in{'listen4_def'}) {
	for ($i = 0; defined($addr = $in{"addrs4_$i"}); $i++) {
		&trim($addr);

		next unless ($addr);

		if ($addr =~ /^!\s*(.*)$/o) {
			$not = '!';
			$addr = $1;

			unless ($addr) {
				&terror('edit_eipmissing');
			}
		}
		else {
			$not = '';
		}

		if (&check_ipaddress($addr)) {
			$addr = &compress_ip($addr);
		}
		else {
			&terror('edit_eip', $addr);
		}

		$dir = { 'name' => 'listen-on', 'type' => 1 };

		unless ($in{"pdef4_$i"}) {
			$port = $in{"port4_$i"};

			&trim($port);

			unless ($port) {
				&terror('controls_eport');
			}
			elsif ($port =~ /\D/o || $port > 65535) {
				&terror('net_eport', $port);
			}

			$dir->{'values'} = [ 'port', $port ];
		}

		$dir->{'members'} = [ { 'name' => $not . $addr } ];

		push(@listen, $dir);
	}
}


&save_directive($options, 'listen-on', \@listen, 1);


@listen = ();

if (! $in{'listen6_def'} && $in{'addrs6'} != -1) {
	$dir = { 'name' => 'listen-on-v6', 'type' => 1 };

	unless ($in{'pdef6'}) {
		$port = $in{'port6'};

		&trim($port);

		unless ($port) {
			&terror('controls_eport');
		}
		elsif ($port =~ /\D/o || $port > 65535) {
			&terror('net_eport', $port);
		}

		$dir->{'values'} = [ 'port', $port ];
	}

	$dir->{'members'} = [ { 'name' => $in{'addrs6'} ? 'any' : 'none' } ];

	push(@listen, $dir);
}


&save_directive($options, 'listen-on-v6', \@listen, 1);


if ($in{'saddr4_def'} == -1) {
	push(@qvals, 'address', '*');
}
elsif ($in{'saddr4_def'} == 0) {
	&trim($in{'saddr4'});

	unless ($in{'saddr4'}) {
		&terror('edit_eipmissing');
	}
	elsif (&check_ipaddress($in{'saddr4'})) {
		$in{'saddr4'} = &compress_ip($in{'saddr4'});
	}
	else {
		&terror('edit_eip', $in{'saddr4'});
	}

	push(@qvals, 'address', $in{'saddr4'});
}


if ($in{'sport4_def'} == -1) {
	push(@qvals, 'port', '*');
}
elsif ($in{'sport4_def'} == 0) {
	$port = $in{'sport4'};

	&trim($port);

	unless ($port) {
		&terror('controls_eport');
	}
	elsif ($port =~ /\D/o || $port > 65535) {
		&terror('edit_eport', $port);
	}

	push(@qvals, 'port', $port);
}


if (@qvals) {
	&save_directive($options, 'query-source',
					[ { 'name' => 'query-source',
					    'values' => \@qvals } ], 1);
}
else {
	&save_directive($options, 'query-source', [ ], 1);
}


@qvals = ();

if ($in{'saddr6_def'} == -1) {
	push(@qvals, 'address', '*');
}
elsif ($in{'saddr6_def'} == 0) {
	&trim($in{'saddr6'});

	unless ($in{'saddr6'}) {
		&terror('edit_eipmissing');
	}
	elsif (&check_ip6address($in{'saddr6'})) {
		$in{'saddr6'} = &compress_ip6($in{'saddr6'});
	}
	else {
		&terror('edit_eip6', $in{'saddr6'});
	}

	push(@qvals, 'address', $in{'saddr6'});
}


if ($in{'sport6_def'} == -1) {
	push(@qvals, 'port', '*');
}
elsif ($in{'sport6_def'} == 0) {
	$port = $in{'sport6'};

	&trim($port);

	unless ($port) {
		&terror('controls_eport');
	}
	elsif ($port =~ /\D/o || $port > 65535) {
		&terror('edit_eport', $port);
	}

	push(@qvals, 'port', $port);
}


if (@qvals) {
	&save_directive($options, 'query-source-v6',
					[ { 'name' => 'query-source-v6',
					    'values' => \@qvals } ], 1);
}
else {
	&save_directive($options, 'query-source-v6', [ ], 1);
}


&flush_file_lines();

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

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

&redirect('');

exit;