<?php
/*
 * services_unbound_domainoverride_edit.php
 *
 * part of pfSense (https://www.pfsense.org)
 * Copyright (c) 2004-2016 Electric Sheep Fencing, LLC
 * Copyright (c) 2014 Warren Baker (warren@decoy.co.za)
 * Copyright (c) 2003-2005 Bob Zoller <bob@kludgebox.com>
 * All rights reserved.
 *
 * originally based on m0n0wall (http://m0n0.ch/wall)
 * Copyright (c) 2003-2004 Manuel Kasper <mk@neon1.net>.
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

##|+PRIV
##|*IDENT=page-services-dnsresolver-editdomainoverride
##|*NAME=Services: DNS Resolver: Edit Domain Override
##|*DESCR=Allow access to the 'Services: DNS Resolver: Edit Domain Override' page.
##|*MATCH=services_unbound_domainoverride_edit.php*
##|-PRIV

require_once("guiconfig.inc");

if (!is_array($config['unbound']['domainoverrides'])) {
	$config['unbound']['domainoverrides'] = array();
}

$a_domainOverrides = &$config['unbound']['domainoverrides'];

if (is_numericint($_GET['id'])) {
	$id = $_GET['id'];
}
if (isset($_POST['id']) && is_numericint($_POST['id'])) {
	$id = $_POST['id'];
}

if (isset($id) && $a_domainOverrides[$id]) {
	$pconfig['domain'] = $a_domainOverrides[$id]['domain'];
	$pconfig['ip'] = $a_domainOverrides[$id]['ip'];
	$pconfig['descr'] = $a_domainOverrides[$id]['descr'];
}

if ($_POST) {

	unset($input_errors);
	$pconfig = $_POST;

	/* input validation */
	$reqdfields = explode(" ", "domain ip");
	$reqdfieldsn = array(gettext("Domain"), gettext("IP address"));

	do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);

	function String_Begins_With($needle, $haystack) {
		return (substr($haystack, 0, strlen($needle)) == $needle);
	}

	if (String_Begins_With(_msdcs, $_POST['domain'])) {
		$subdomainstr = substr($_POST['domain'], 7);
		if ($subdomainstr && !is_domain($subdomainstr)) {
			$input_errors[] = gettext("A valid domain must be specified after _msdcs.");
		}
	} elseif ($_POST['domain'] && !is_domain($_POST['domain'])) {
		$input_errors[] = gettext("A valid domain must be specified.");
	}

	if ($_POST['ip']) {
		if (strpos($_POST['ip'], '@') !== false) {
			$ip_details = explode("@", $_POST['ip']);
			if (!is_ipaddr($ip_details[0]) || !is_port($ip_details[1])) {
				$input_errors[] = gettext("A valid IP address and port must be specified, for example 192.168.100.10@5353.");
			}
		} else if (!is_ipaddr($_POST['ip'])) {
			$input_errors[] = gettext("A valid IP address must be specified, for example 192.168.100.10.");
		}
	}

	if (!$input_errors) {
		$doment = array();
		$doment['domain'] = $_POST['domain'];
		$doment['ip'] = $_POST['ip'];
		$doment['descr'] = $_POST['descr'];

		if (isset($id) && $a_domainOverrides[$id]) {
			$a_domainOverrides[$id] = $doment;
		} else {
			$a_domainOverrides[] = $doment;
		}

		mark_subsystem_dirty('unbound');

		write_config();

		header("Location: services_unbound.php");
		exit;
	}
}

$pgtitle = array(gettext("Services"), gettext("DNS Resolver"), gettext("General Settings"), gettext("Edit Domain Override"));
$shortcut_section = "resolver";
include("head.inc");

if ($input_errors) {
        print_input_errors($input_errors);
}

$form = new Form();

$section = new Form_Section('Domain Override');

$section->addInput(new Form_Input(
	'domain',
	'Domain',
	'text',
	$pconfig['domain']
))->setHelp('Domain to override (NOTE: this does not have to be a valid TLD!) e.g.: test or mycompany.localdomain or 1.168.192.in-addr.arpa');

$section->addInput(new Form_IpAddress(
	'ip',
	'IP Address',
	$pconfig['ip']
))->setHelp('IP address of the authoritative DNS server for this domain. e.g.: 192.168.100.100' . '<br />' .
			'To use a non-default port for communication, append an \'@\' with the port number.')->setPattern('[a-zA-Z0-9@.:]+');

$section->addInput(new Form_Input(
	'descr',
	'Description',
	'text',
	$pconfig['descr']
))->setHelp('A description may be entered here for administrative reference (not parsed).');

if (isset($id) && $a_domainOverrides[$id]) {
	$section->addInput(new Form_Input(
		'id',
		null,
		'hidden',
		$id
	));
}

$form->add($section);

print $form;

include("foot.inc");