<?php
/* $Id$ */
/*
	services_rfc2136_edit.php

	Copyright (C) 2008 Ermal Luçi
	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: dnsupdate
*/

require("guiconfig.inc");

if (!is_array($config['dnsupdates']['dnsupdate'])) {
	$config['dnsupdates']['dnsupdate'] = array();
}

$a_rfc2136 = &$config['dnsupdates']['dnsupdate'];

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

if (isset($id) && isset($a_rfc2136[$id])) {
	$pconfig['enable'] = isset($a_rfc2136[$id]['enable']);
	$pconfig['host'] = $a_rfc2136[$id]['host'];
	$pconfig['ttl'] = $a_rfc2136[$id]['ttl'];
	if (!$pconfig['ttl']) {
		$pconfig['ttl'] = 60;
	}
	$pconfig['keydata'] = $a_rfc2136[$id]['keydata'];
	$pconfig['keyname'] = $a_rfc2136[$id]['keyname'];
	$pconfig['keytype'] = $a_rfc2136[$id]['keytype'];
	if (!$pconfig['keytype']) {
		$pconfig['keytype'] = "zone";
	}
	$pconfig['server'] = $a_rfc2136[$id]['server'];
	$pconfig['interface'] = $a_rfc2136[$id]['interface'];
	$pconfig['usetcp'] = isset($a_rfc2136[$id]['usetcp']);
	$pconfig['usepublicip'] = isset($a_rfc2136[$id]['usepublicip']);
	$pconfig['recordtype'] = $a_rfc2136[$id]['recordtype'];
	if (!$pconfig['recordtype']) {
		$pconfig['recordtype'] = "both";
	}
	$pconfig['descr'] = $a_rfc2136[$id]['descr'];

}

if ($_POST) {

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

	/* input validation */
	$reqdfields = array();
	$reqdfieldsn = array();
	$reqdfields = array_merge($reqdfields, explode(" ", "host ttl keyname keydata"));
	$reqdfieldsn = array_merge($reqdfieldsn, array(gettext("Hostname"), gettext("TTL"), gettext("Key name"), gettext("Key")));

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

	if (($_POST['host'] && !is_domain($_POST['host']))) {
		$input_errors[] = gettext("The DNS update host name contains invalid characters.");
	}
	if (($_POST['ttl'] && !is_numericint($_POST['ttl']))) {
		$input_errors[] = gettext("The DNS update TTL must be an integer.");
	}
	if (($_POST['keyname'] && !is_domain($_POST['keyname']))) {
		$input_errors[] = gettext("The DNS update key name contains invalid characters.");
	}

	if (!$input_errors) {
		$rfc2136 = array();
		$rfc2136['enable'] = $_POST['enable'] ? true : false;
		$rfc2136['host'] = $_POST['host'];
		$rfc2136['ttl'] = $_POST['ttl'];
		$rfc2136['keyname'] = $_POST['keyname'];
		$rfc2136['keytype'] = $_POST['keytype'];
		$rfc2136['keydata'] = $_POST['keydata'];
		$rfc2136['server'] = $_POST['server'];
		$rfc2136['usetcp'] = $_POST['usetcp'] ? true : false;
		$rfc2136['usepublicip'] = $_POST['usepublicip'] ? true : false;
		$rfc2136['recordtype'] = $_POST['recordtype'];
		$rfc2136['interface'] = $_POST['interface'];
		$rfc2136['descr'] = $_POST['descr'];

		if (isset($id) && $a_rfc2136[$id]) {
			$a_rfc2136[$id] = $rfc2136;
		} else {
			$a_rfc2136[] = $rfc2136;
		}

		write_config(gettext("New/Edited RFC2136 dnsupdate entry was posted."));

		if ($_POST['Submit'] == gettext("Save & Force Update")) {
			$retval = services_dnsupdate_process("", $rfc2136['host'], true);
		} else {
			$retval = services_dnsupdate_process();
		}

		header("Location: services_rfc2136.php");
		exit;
	}
}

$pgtitle = array(gettext("Services"), gettext("RFC 2136 client"), gettext("Edit"));
include("head.inc");

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

if ($input_errors)
	print_input_errors($input_errors);

if ($savemsg)
	print_info_box($savemsg);

$form = new Form;

$section = new Form_Section('RFC 2136 client');

$section->addInput(new Form_Checkbox(
	'enable',
	'Enable',
	null,
	$pconfig['enable']
));

$optionlist = array();
$iflist = get_configured_interface_with_descr();

foreach ($iflist as $ifnam => $ifdescr)
	$optionlist[$ifnam] = $ifdescr;

$section->addInput(new Form_Select(
	'ifname',
	'Interface',
	$pconfig['ifname'],
	$optionlist
));

$section->addInput(new Form_Input(
	'host',
	'Hostname',
	'text',
	$pconfig['host']
))->setHelp('Fully qualified hostname of the host to be updated');

$section->addInput(new Form_Input(
	'ttl',
	'TTL (seconds)',
	'number',
	$pconfig['ttl']
));

$section->addInput(new Form_Input(
	'keyname',
	'Key name',
	'text',
	$pconfig['keyname']
))->setHelp('This must match the setting on the DNS server.');

$group = new Form_Group('Key Type');

$group->add(new Form_Checkbox(
	'keytype',
	'Key Type',
	'Zone',
	($pconfig['keytype']=='zone'),
	'zone'
))->displayAsRadio();

$group->add($input = new Form_Checkbox(
	'keytype',
	'Key Type',
	'Host',
	($pconfig['keytype']=='host'),
	'host'
))->displayAsRadio();

$group->add($input = new Form_Checkbox(
	'keytype',
	'Key Type',
	'User',
	($pconfig['keytype']=='user'),
	'user'
))->displayAsRadio();

$section->add($group);

$section->addInput(new Form_Input(
	'keydata',
	'Key',
	'text',
	$pconfig['keydata']
))->setHelp('Paste an HMAC-MD5 key here.');

$section->addInput(new Form_Input(
	'server',
	'Server',
	'text',
	$pconfig['server']
));

$section->addInput(new Form_Checkbox(
	'usetcp',
	'Protocol',
	'Use TCP instead of UDP',
	$pconfig['usetcp']
));

$section->addInput(new Form_Checkbox(
	'usepublicip',
	'Use public IP',
	'If the interface IP is private, attempt to fetch and use the public IP instead.',
	$pconfig['usepublicip']
));

$group = new Form_Group('Record Type');

$group->add(new Form_Checkbox(
	'recordtype',
	'Record Type',
	'A (IPv4)',
	($pconfig['keytype']=='A'),
	'A'
))->displayAsRadio();

$group->add($input = new Form_Checkbox(
	'recordtype',
	'Record Type',
	'AAAA (IPv6)',
	($pconfig['keytype']=='AAAA'),
	'AAAA'
))->displayAsRadio();

$group->add($input = new Form_Checkbox(
	'recordtype',
	'Record Type',
	'Both',
	($pconfig['keytype']=='both'),
	'both'
))->displayAsRadio();

$section->add($group);

$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) && $a_rfc2136[$id]){
    	$section->addInput(new Form_Input(
    	'id',
    	null,
    	'hidden',
    	$id
	));
}

$form->add($section);
print($form);

print_info_box(sprintf('You must configure a DNS server in %sSystem: ' .
					'General setup %sor allow the DNS server list to be overridden ' .
					'by DHCP/PPP on WAN for dynamic DNS updates to work.','<a href="system.php">', '</a>'));

include("foot.inc");