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* rewrite the hole script:

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** use .env file for config so we can retrieve updates
** add config and payload DTO with validators
** allow registrable domains as DynDNS
** update IPv4/6 only if changed (or really forced)
** remove obsolete failed_logins counter
** save logs with timestamp
** save only the newest 100 log entries for each domain
This commit is contained in:
Branko Wilhelm 2019-05-16 18:00:21 +02:00
parent 0c58ee7009
commit 05e326abe6
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9 changed files with 528 additions and 149 deletions
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149
update.php
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@ -1,145 +1,20 @@
<?php
require_once "dnsapi.php";
//
// CONFIG SECTION
// Info:
// Hostname record needs to exist before script is working
// This script will not create missing hostnames in the DNS zone
//
$username = "dyndns.username";
$password = "secret";
$dataFile = "data.json";
$debug = false;
error_reporting(-1);
ini_set('display_errors', 1);
ini_set('html_errors', 0);
// netcup API information
$apiKey = "netcup DNS API Key";
$apiPassword = "netcup DNS API Password";
$customerId = "netcup customer id";
header('Content-Type: text/plain; charset=utf-8');
//
// NO CONFIGURATION BEYOND THIS LINE
//
$getUsername = $_GET['user'];
$getPassword = $_GET['password'];
$getDomain = $_GET['domain'];
$getIpv4 = $_GET['ipv4'];
$getIpv6 = $_GET['ipv6'];
require_once __DIR__ . '/src/Soap.php';
require_once __DIR__ . '/src/Config.php';
require_once __DIR__ . '/src/Payload.php';
require_once __DIR__ . '/src/Handler.php';
// FUNCTIONS
// is called to write dataFile and exit
function write_and_exit(){
global $dataFile, $data;
if(!@file_put_contents($dataFile, json_encode($data))){
echo("[ERROR] unable to write $dataFile <br>");
}
exit();
if (!file_exists('.env')) {
throw new RuntimeException('.env file missing');
}
// is called to append log to data object and enable debug output
function logging($text){
global $data, $debug, $getDomain;
array_push($data[$getDomain]['log'], $text);
if($debug == true){
echo("[DEBUG] $text <br>");
}
}
// function to get domain and reduce host from it
function reduceHost($domain){
$domainParts = explode('.', $domain);
array_shift($domainParts);
$tld = implode('.', $domainParts);
return $tld;
}
$config = parse_ini_file('.env', false, INI_SCANNER_TYPED);
// INIT
if($debug == true){
error_reporting( E_ALL );
ini_set('display_errors', 1);
}
// PRESET VALIDATION
// get data from object, create if not existent
if(file_exists($dataFile)){
$data = json_decode(@file_get_contents($dataFile), true);
} else {
touch($dataFile);
}
// check for domain parameter and exit if NULL
if(empty($getDomain)){
logging("no domain given. exiting...");
write_and_exit();
}
// init log array
$data[$getDomain]['log'] = [];
// authenticate, store number of failed logins
if($getUsername != $username or $getPassword != $password){
logging("authentication failed. exiting...");
$data[$getDomain]['failed_logins']++;
write_and_exit();
} else {
$data[$getDomain]['failed_logins']=0;
}
// DOMAIN SPECIFIC PROCESSING
// write current timestamp to data array
$data[$getDomain]['timestamp'] = time();
// validate IP addresses (v4 and v6) and write to data array
if(filter_var($getIpv4, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)){
logging("valid IPv4");
// write to data array
$data[$getDomain]['ipv4'] = $getIpv4;
} else {
logging("no valid IPv4");
// write to data array
$data[$getDomain]['ipv4'] = NULL;
}
if(filter_var($getIpv6, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)){
logging("valid IPv6");
// write to data array
$data[$getDomain]['ipv6'] = $getIpv6;
} else {
logging("no valid IPv6");
// write to data array
$data[$getDomain]['ipv6'] = NULL;
}
if($data[$getDomain]['ipv4'] == NULL && $data[$getDomain]['ipv6'] == NULL){
logging("no valid IP found");
write_and_exit();
}
// broadcast new IP to DNS API
$clientRequestId = md5($getDomain);
$dnsClient = new DomainWebserviceSoapClient();
$clientHandle = $dnsClient->login($customerId, $apiKey, $apiPassword, $clientRequestId);
$infoHandle = $dnsClient->infoDnsRecords(reduceHost($getDomain), $customerId, $apiKey, $clientHandle->responsedata->apisessionid, $clientRequestId);#
$dnsrecords = $infoHandle->responsedata->dnsrecords;
foreach($dnsrecords as $key => &$record){
// write IPv4 update set if valid address and existent record
if($record->hostname == explode('.', "$getDomain")[0] && $record->type == "A" && $data[$getDomain]['ipv4'] != NULL){
$record->destination = $data[$getDomain]['ipv4'];
}
// write IPv6 update set if valid address and existent record
if($record->hostname == explode('.', "$getDomain")[0] && $record->type == "AAAA" && $data[$getDomain]['ipv6'] != NULL){
$record->destination = $data[$getDomain]['ipv6'];
}
}
//$clientHandle->clientrequestid = md5(microtime(true));
$recordSet = new Dnsrecordset();
$recordSet->dnsrecords = $dnsrecords;
$updateHandle = $dnsClient->updateDnsRecords(reduceHost($getDomain), $customerId, $apiKey, $clientHandle->responsedata->apisessionid, $clientRequestId, $recordSet);
logging("dns recordset updated");
$result = $dnsClient->logout($customerId, $apiKey, $clientHandle->responsedata->apisessionid, $clientRequestId);
logging("api logout");
// finish
write_and_exit();
?>
(new netcup\DNS\API\Handler($config, $_REQUEST))->doRun();