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<?php
/*
* services_unbound_host_edit.php
*
* part of pfSense (https://www.pfsense.org)
* Copyright (c) 2004-2016 Rubicon Communications, LLC (Netgate)
* 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-edithost
##|*NAME=Services: DNS Resolver: Edit host
##|*DESCR=Allow access to the 'Services: DNS Resolver: Edit host' page.
##|*MATCH=services_unbound_host_edit.php*
##|-PRIV
function hostcmp($a, $b) {
return strcasecmp($a['host'], $b['host']);
}
function hosts_sort() {
global $g, $config;
if (!is_array($config['unbound']['hosts'])) {
return;
}
usort($config['unbound']['hosts'], "hostcmp");
}
require_once("guiconfig.inc");
if (!is_array($config['unbound']['hosts'])) {
$config['unbound']['hosts'] = array();
}
$a_hosts = &$config['unbound']['hosts'];
$id = $_REQUEST['id'];
if (isset($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 ($_POST['save']) {
unset($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 */
$aliases = array();
if (!empty($_POST['aliashost0'])) {
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('unbound');
write_config();
header("Location: services_unbound.php");
exit;
}
}
$pgtitle = array(gettext("Services"), gettext("DNS Resolver"), gettext("General Settings"), gettext("Edit Host Override"));
$pglinks = array("", "services_unbound.php", "services_unbound.php", "@self");
$shortcut_section = "resolver";
include("head.inc");
if ($input_errors) {
print_input_errors($input_errors);
}
$form = new Form();
$section = new Form_Section('Host Override Options');
$section->addInput(new Form_Input(
'host',
'Host',
'text',
$pconfig['host']
))->setHelp('Name of the host, without the domain part%1$s' .
'e.g. enter "myhost" if the full domain name is "myhost.example.com"', '<br />');
$section->addInput(new Form_Input(
'domain',
'*Domain',
'text',
$pconfig['domain']
))->setHelp('Parent domain of the host%1$s' .
'e.g. enter "example.com" for "myhost.example.com"', '<br />');
$section->addInput(new Form_IpAddress(
'ip',
'*IP Address',
$pconfig['ip']
))->setHelp('IPv4 or IPv6 address to be returned for the host%1$s' .
'e.g.: 192.168.100.100 or fd00:abcd::1', '<br />');
$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) && $a_hosts[$id]) {
$section->addInput(new Form_Input(
'id',
null,
'hidden',
$pconfig['id']
));
}
$section->addInput(new Form_StaticText(
'',
'<span class="help-block">' .
gettext("This page is used to override the usual lookup process for a specific host. A host is defined by its name" .
"and parent domain (e.g., 'somesite.google.com' is entered as host='somesite' and parent domain='google.com'). Any " .
"attempt to lookup that host will automatically return the given IP address, and any usual external lookup server for " .
"the domain will not be queried. Both the name and parent domain can contain 'non-standard', 'invalid' and 'local' " .
"domains such as 'test', 'mycompany.localdomain', or '1.168.192.in-addr.arpa', as well as usual publicly resolvable names ".
"such as 'www' or 'google.co.uk'.") .
'</span>'
));
$form->add($section);
$section = new Form_Section('Additional Names for this Host');
if (!$pconfig['aliases']['item']) {
$pconfig['aliases']['item'] = array('host' => "");
}
if ($pconfig['aliases']['item']) {
$counter = 0;
$last = count($pconfig['aliases']['item']) - 1;
foreach ($pconfig['aliases']['item'] as $item) {
$group = new Form_Group(null);
$group->addClass('repeatable');
$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 ? 'Domain':null);
$group->add(new Form_Input(
'aliasdescription' . $counter,
null,
'text',
$item['description']
))->setHelp($counter == $last ? 'Description':null);
$group->add(new Form_Button(
'deleterow' . $counter,
'Delete',
null,
'fa-trash'
))->addClass('btn-warning');
$section->add($group);
$counter++;
}
}
$form->addGlobal(new Form_Button(
'addrow',
'Add Host Name',
null,
'fa-plus'
))->removeClass('btn-primary')->addClass('btn-success addbtn');
$section->addInput(new Form_StaticText(
'',
'<span class="help-block">'.
gettext("If the host can be accessed using multiple names, then enter any other names for the host which should also be overridden.") .
'</span>'
));
$form->add($section);
print($form);
include("foot.inc");
|