pfSense

<?php

/* $Id$ */

/*

	services_dnsmasq_edit.php

	part of m0n0wall (http://m0n0.ch/wall)

	Copyright (C) 2003-2004 Bob Zoller <bob@kludgebox.com> and Manuel Kasper <mk@neon1.net>.

	Copyright (C) 2013-2015 Electric Sheep Fencing, LP

	All rights reserved.

	Redistribution and use in source and binary forms, with or without

	modification, are permitted provided that the following conditions are met:

	1. Redistributions of source code must retain the above copyright notice,

	   this list of conditions and the following disclaimer.

	2. Redistributions in binary form must reproduce the above copyright

	   notice, this list of conditions and the following disclaimer in the

	   documentation and/or other materials provided with the distribution.

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,

	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY

	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,

	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

	POSSIBILITY OF SUCH DAMAGE.

*/

/*

	pfSense_MODULE: dnsforwarder

*/

##|+PRIV

##|*IDENT=page-services-dnsforwarder-edithost

##|*NAME=Services: DNS Forwarder: Edit host page

##|*DESCR=Allow access to the 'Services: DNS Forwarder: Edit host' page.

##|*MATCH=services_dnsmasq_edit.php*

##|-PRIV

function hostcmp($a, $b) {

	return strcasecmp($a['host'], $b['host']);

}

function hosts_sort() {

	global $g, $config;

	if (!is_array($config['dnsmasq']['hosts']))

			return;

	usort($config['dnsmasq']['hosts'], "hostcmp");

}

require("guiconfig.inc");

$referer = (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '/services_dnsmasq.php');

if (!is_array($config['dnsmasq']['hosts']))

	$config['dnsmasq']['hosts'] = array();

$a_hosts = &$config['dnsmasq']['hosts'];

if (is_numericint($_GET['id']))

	$id = $_GET['id'];

if (isset($_POST['id']) && is_numericint($_POST['id']))

	$id = $_POST['id'];

if (isset($id) && $a_hosts[$id]) {

	$pconfig['host'] = $a_hosts[$id]['host'];

	$pconfig['domain'] = $a_hosts[$id]['domain'];

	$pconfig['ip'] = $a_hosts[$id]['ip'];

	$pconfig['descr'] = $a_hosts[$id]['descr'];

	$pconfig['aliases'] = $a_hosts[$id]['aliases'];

}

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);

	if ($_POST['host']) {

		if (!is_hostname($_POST['host'])) {

			$input_errors[] = gettext("The hostname can only contain the characters A-Z, 0-9 and '-'. It may not start or end with '-'.");

		} else {

			if (!is_unqualified_hostname($_POST['host'])) {

				$input_errors[] = gettext("A valid hostname is specified, but the domain name part should be omitted");

			}

		}

	}

	if (($_POST['domain'] && !is_domain($_POST['domain'])))

		$input_errors[] = gettext("A valid domain must be specified.");

	if (($_POST['ip'] && !is_ipaddr($_POST['ip'])))

		$input_errors[] = gettext("A valid IP address must be specified.");

	/* collect aliases */

	$aliases = array();

	foreach ($_POST as $key => $value) {

		$entry = '';

		if (!substr_compare('aliashost', $key, 0, 9)) {

			$entry = substr($key, 9);

			$field = 'host';

		}

		elseif (!substr_compare('aliasdomain', $key, 0, 11)) {

			$entry = substr($key, 11);

			$field = 'domain';

		}

		elseif (!substr_compare('aliasdescription', $key, 0, 16)) {

			$entry = substr($key, 16);

			$field = 'description';

		}

		if (ctype_digit($entry)) {

			$aliases[$entry][$field] = $value;

		}

	}

	$pconfig['aliases']['item'] = $aliases;

	/* validate aliases */

	foreach ($aliases as $idx => $alias) {

		$aliasreqdfields = array('aliasdomain' . $idx);

		$aliasreqdfieldsn = array(gettext("Alias Domain"));

		do_input_validation($_POST, $aliasreqdfields, $aliasreqdfieldsn, $input_errors);

		if ($alias['host']) {

			if (!is_hostname($alias['host'])) {

				$input_errors[] = gettext("Hostnames in an alias list can only contain the characters A-Z, 0-9 and '-'. They may not start or end with '-'.");

			} else {

				if (!is_unqualified_hostname($alias['host'])) {

					$input_errors[] = gettext("A valid alias hostname is specified, but the domain name part should be omitted");

				}

			}

		}

		if (($alias['domain'] && !is_domain($alias['domain']))) {

			$input_errors[] = gettext("A valid domain must be specified in alias list.");

		}

	}

	/* check for overlaps */

	foreach ($a_hosts as $hostent) {

		if (isset($id) && ($a_hosts[$id]) && ($a_hosts[$id] === $hostent))

			continue;

		if (($hostent['host'] == $_POST['host']) && ($hostent['domain'] == $_POST['domain'])

			&& ((is_ipaddrv4($hostent['ip']) && is_ipaddrv4($_POST['ip'])) || (is_ipaddrv6($hostent['ip']) && is_ipaddrv6($_POST['ip'])))) {

			$input_errors[] = gettext("This host/domain already exists.");

			break;

		}

	}

	if (!$input_errors) {

		$hostent = array();

		$hostent['host'] = $_POST['host'];

		$hostent['domain'] = $_POST['domain'];

		$hostent['ip'] = $_POST['ip'];

		$hostent['descr'] = $_POST['descr'];

		$hostent['aliases']['item'] = $aliases;

		if (isset($id) && $a_hosts[$id])

			$a_hosts[$id] = $hostent;

		else

			$a_hosts[] = $hostent;

		hosts_sort();

		mark_subsystem_dirty('hosts');

		write_config();

		header("Location: services_dnsmasq.php");

		exit;

	}

}

// Delete a row in the options table

if($_GET['act'] == "delopt") {

	$idx = $_GET['id'];

	if($pconfig['aliases'] && is_array($pconfig['aliases']['item'][$idx])) {

	   unset($pconfig['aliases']['item'][$idx]);

	}

}

// Add an option row

if($_GET['act'] == "addopt") {

    if(!is_array($pconfig['aliases']['item']))

        $pconfig['aliases']['item'] = array();

	array_push($pconfig['aliases']['item'], array('host' => null, 'domain' => null, 'description' => null));

}

$pgtitle = array(gettext("Services"),gettext("DNS forwarder"),gettext("Edit host"));

$shortcut_section = "forwarder";

include("head.inc");

if ($input_errors)

	print_input_errors($input_errors);

require('classes/Form.class.php');

$form = new Form();

$section = new Form_Section('Domain override options');

$section->addInput(new Form_Input(

	'host',

	'Host',

	'text',

	$pconfig['domain']

))->setHelp('Name of the host, without the domain part' . '<br />' .

			'e.g.: "myhost"');

$section->addInput(new Form_Input(

	'domain',

	'Domain',

	'text',

	$pconfig['domain']

))->setHelp('Domain of the host' . '<br />' .

			'e.g.: "example.com"');

$section->addInput(new Form_IpAddress(

	'ip',

	'IP Address',

	$pconfig['ip']

))->setHelp('IP address of the host' . '<br />' .

			'e.g.: 192.168.100.100 or fd00:abcd::1');

$section->addInput(new Form_Input(

	'descr',

	'Description',

	'text',

	$pconfig['descr']

))->setHelp('You may enter a description here for your reference (not parsed).');

if (isset($id) && $a_hosts[$id]) {

	$section->addInput(new Form_Input(

		'id',

		null,

		'hidden',

		$pconfig['id']

	))->setHelp('You may enter a description here for your reference (not parsed).');

}

$form->add($section);

$section = new Form_Section('Additional names for this host');

if( $pconfig['aliases']['item']) {

	$counter = 0;

	$last = count($pconfig['aliases']['item']) - 1;

	foreach($pconfig['aliases']['item'] as $item) {

		$group = new Form_Group(null);

		$group->add(new Form_Input(

			'aliashost' . $counter,

			null,

			'text',

			$item['host']

		))->setHelp($counter == $last ? 'Host name':null);

		$group->add(new Form_Input(

			'aliasdomain' . $counter,

			null,

			'text',

			$item['domain']

		))->setHelp($counter == $last ? 'Value':null);

		$group->add(new Form_Input(

			'aliasdescription' . $counter,

			null,

			'text',

			$item['description']

		))->setHelp($counter == $last ? 'Description':null);

		$btn = new Form_Button(

			'btn' . $counter,

			'Delete',

			'services_dnsmasq_edit.php?act=delopt' . '&id=' . $counter

		);

		$btn->removeClass('btn-primary')->addClass('btn-danger btn-sm');

		$group->add($btn);

		$section->add($group);

		$counter++;

	}

}

$btnaddopt = new Form_Button(

	'btnaddopt',

	'Add Option',

	'services_dnsmasq_edit.php?act=addopt'

);

$btnaddopt->removeClass('btn-primary')->addClass('btn-success btn-sm');

$section->addInput($btnaddopt);

$form->addGlobal(new Form_Button(

	'cancel',

	'Cancel',

	$referer

));

$form->add($section);

print($form);

include("foot.inc");