Files
web/scripts/pi-hole/php/customdns.php
Pierre Ghiot 6326964226 Create customdns.php
Signed-off-by: Mograine <ghiot.pierre@gmail.com>
2019-10-27 16:48:39 +01:00

124 lines
3.3 KiB
PHP

<?php
require_once "func.php";
$customDNSFile = "/etc/pihole/custom.list";
switch ($_REQUEST['action'])
{
case 'get': echo json_encode(echoCustomDNSEntries()); break;
case 'add': echo json_encode(addCustomDNSEntry()); break;
case 'delete': echo json_encode(deleteCustomDNSEntry()); break;
default:
die("Wrong action");
}
function echoCustomDNSEntries()
{
$entries = getCustomDNSEntries();
$data = [];
foreach ($entries as $domain => $ip)
$data[] = [ $domain, $ip ];
return [ "data" => $data ];
}
function getCustomDNSEntries()
{
global $customDNSFile;
$entries = [];
$handle = fopen($customDNSFile, "r");
if ($handle)
{
while (($line = fgets($handle)) !== false) {
$line = str_replace("\r","", $line);
$line = str_replace("\n","", $line);
$explodedLine = explode (" ", $line);
if (count($explodedLine) != 2)
continue;
$entries[$explodedLine[1]] = $explodedLine[0];
}
fclose($handle);
}
return $entries;
}
function addCustomDNSEntry()
{
try
{
$ip = !empty($_REQUEST['ip']) ? $_REQUEST['ip']: "";
$domain = !empty($_REQUEST['domain']) ? $_REQUEST['domain']: "";
if (empty($ip))
return errorJsonResponse("IP must be set");
if (!filter_var($ip, FILTER_VALIDATE_IP))
return errorJsonResponse("IP must be valid");
if (empty($domain))
return errorJsonResponse("Domain must be set");
if (!is_valid_domain_name($domain))
return errorJsonResponse("Domain must be valid");
$existingEntries = getCustomDNSEntries();
if (array_key_exists($domain, $existingEntries))
return errorJsonResponse("This domain already has a custom DNS entry");
exec("sudo pihole -a addcustomdns ".$ip." ".$domain);
exec("sudo pihole -a restartdns");
return successJsonResponse();
}
catch (\Exception $ex)
{
return errorJsonResponse($ex->getMessage());
}
}
function deleteCustomDNSEntry()
{
try
{
$domain = !empty($_REQUEST['domain']) ? $_REQUEST['domain']: "";
if (empty($domain))
return errorJsonResponse("Domain must be set");
$existingEntries = getCustomDNSEntries();
if (!array_key_exists($domain, $existingEntries))
return errorJsonResponse("This domain does not have a custom DNS entry");
exec("sudo pihole -a removecustomdns ".$domain);
exec("sudo pihole -a restartdns");
return successJsonResponse();
}
catch (\Exception $ex)
{
return errorJsonResponse($ex->getMessage());
}
}
function successJsonResponse($message = "")
{
return [ "success" => true, "message" => $message ];
}
function errorJsonResponse($message = "")
{
return [ "success" => false, "message" => $message ];
}
?>