IPv4/IPv6 双栈 ddns (DNSPod版)

$ cat /home/chaos/ddns-dnspod/index.php
<?php

require __DIR__ . '/vendor/autoload.php';

use Curl\Curl;
$curl = new Curl();

$ini_array = parse_ini_file('config.ini', true);

$token = $ini_array['config']['token']; // dnspod token
$required_key = $ini_array['config']['key'];

//echo $_SERVER['HTTP_X_REAL_IP'];
$address = $_SERVER['REMOTE_ADDR'];
$isIPv6 = strpos($address, ':') > -1;
$type = $isIPv6 ? 'AAAA' : 'A';
$domain = $_GET['domain'];
$sub = $_GET['sub'];
$key = $_GET['key'];

if (!$domain || !$sub || 0 != strcmp($key, $required_key)) exit;

$output = [
 'domain' => $domain,
 'sub' => $sub,
 'type' => $type,
 'address' => $address
];

$form = "login_token=${token}&format=json&domain=${domain}&sub_domain=${sub}&record_type=${type}&record_line_id=0";
$response = $curl->post('https://dnsapi.cn/Record.List', $form);
if ($curl->error) {
 $output['msg'] = 'Record.List Error' . $curl->errorCode . ': ' . $curl->errorMessage . "\n";
} else {
 $records = $response->records; 
 if (null == $records) $records = [];
 $records = array_filter($records, function($record) use($type) { 
 return 0 == strcmp($record->type, $type); 
 });
 
 if (count($records) > 0) { // if record exists
 $record = $records[0];
 if (0 == strcmp($record->value, $address)) { // skip if same
 $output['msg'] = 'Same record. Skipped';
 echo json_encode($output);
 exit;
 }

 // update record
 $record_id = $record->id;
 $form = "login_token=${token}&format=json&domain=${domain}&record_id=${record_id}&sub_domain=${sub}&value=${address}&record_type=${type}&record_line_id=0";
 $response = $curl->post('https://dnsapi.cn/Record.Modify', $form);
 if ($curl->error) {
 $output['msg'] = 'Record.Modify Error' . $curl->errorCode . ': ' . $curl->errorMessage . "\n";
 } else {
 if (null != $response->status && null != $response->status->code && '1' == $response->status->code) {
 $output['msg'] = 'Modification succeeded';
 } else {
 $output = $response;
 $output->action = 'Record.Modify';
 }
 }
 } else { // record not exists => create 
 $form = "login_token=${token}&format=json&domain=${domain}&sub_domain=${sub}&record_type=${type}&record_line_id=0&value=${address}";
 $response = $curl->post('https://dnsapi.cn/Record.Create', $form);
 if ($curl->error) {
 $output['msg'] = 'Record.Create Error' . $curl->errorCode . ': ' . $curl->errorMessage . "\n";
 } else {
 if (null != $response->status && null != $response->status->code && '1' == $response->status->code) {
 $output['msg'] = 'Creation succeeded';
 } else {
 $output = $response;
 $output->action = 'Record.Create';
 }
 }
 }
}
echo json_encode($output, JSON_UNESCAPED_UNICODE);

原文链接：https://hexo.chaosjohn.com/ddns-for-dnspod.html