CloudXNS DDNS API PHP Script

CloudXNS.php

#!/usr/bin/php
<?php
$host = 'https://www.cloudxns.net/api2';
$apiKey = '';
$secretKey = '';
$date = date('r');
$ipFile = '/tmp/.current_ip';
$ddnsLock = '/tmp/.ddns_lock';
$logFile = '/opt/update.ddns.log';
if (is_readable($ddnsLock)) {
	exit;
} else {
	touch($ddnsLock);
}
register_shutdown_function(function() use ($ddnsLock){
	unlink($ddnsLock);
});
$ip = @json_decode(file_get_contents('http://ip.taobao.com/service/getIpInfo2.php?ip=myip'), true);
if (!isset($ip['data']['ip'])) {
	exit;	
}
$ip = $ip['data']['ip'];
if (is_readable($ipFile) && $ip == file_get_contents('/tmp/.current_ip')) {
	exit;
}

function doHash($apiKey, $uri, $data, $date, $secretKey) {
    return md5($apiKey . $uri . $data . $date . $secretKey);
}

function getRecordItem(array $record, $method, $type, $host, $apiKey, $secretKey) {
    $mh = curl_multi_init();
	$mhItem = [];
    foreach ($record as $key => $re) {
		if (is_numeric($re)) {
			$data = '';
			$id = $re;
		} else {
			$data = json_encode($re['data']);
			$id = $re['id'];
		}
		$uri = "$host/$method/$id";
		$date = date('r');
		$hmac = doHash($apiKey, $uri, $data, $date, $secretKey);
		$ch = curl_init($uri);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($ch, CURLOPT_HEADER, false);
		curl_setopt($ch, CURLOPT_HTTPHEADER, [
			"API-KEY: $apiKey",
			"API-REQUEST-DATE: $date",
			"API-HMAC: $hmac",
			"API-FORMAT: json",
		]);
		curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $type);
		if ($data) {
			curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
		}
		$mhItem[$key] = $ch;
		curl_multi_add_handle($mh, $ch);
	}
	$active = null;
	do {
    	$mrc = curl_multi_exec($mh, $active);
	} while ($mrc == CURLM_CALL_MULTI_PERFORM);
	while ($active && $mrc == CURLM_OK) {
		if (curl_multi_select($mh) != -1) {
			do {
				$mrc = curl_multi_exec($mh, $active);
			} while ($mrc == CURLM_CALL_MULTI_PERFORM);
		}
	}
	$res = [];
	foreach ($mhItem as $key => $ch) {
		$info = curl_getinfo($ch);
		$content = @json_decode(curl_multi_getcontent($ch), true);
		if ($info['http_code'] == 200 && $content['message'] == 'success') {
			$res[$key] = $content;
		}
		curl_multi_remove_handle($mh, $ch);
	}
	curl_multi_close($mh);

	return $res;
}
$uri = "$host/domain";
$data = '';
$hmac = doHash($apiKey, $uri, $data, $date, $secretKey);
$curl = curl_init($uri);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_HTTPHEADER, [
    "API-KEY: $apiKey",
    "API-REQUEST-DATE: $date",
    "API-HMAC: $hmac",
    "API-FORMAT: json",
]);
$domain = curl_exec($curl);
$info = curl_getinfo($curl);
curl_close($curl);
$domain = @json_decode($domain, true);
if ($info['http_code'] == 200 && $domain['message'] == 'success') {
	$domainItem = [];
    foreach ($domain['data'] as $do) {
        if ($do['status'] == 'ok' && $do['take_over_status'] == 'ok') {
			$domainItem[$do['domain']] = $do['id'];
        }
        continue;
    }
	$recordItem = getRecordItem($domainItem, 'record', 'GET',$host, $apiKey, $secretKey);
	if (count($recordItem) != count($domainItem)) {exit;}
	$updateDomainItem = [];
	foreach ($domainItem as $key => $do) {
		foreach ($recordItem[$key]['data'] as $re) {
			$updateDomainItem[$re['record_id']] = ['id' => $re['record_id'], 
				'data' => [
					'domain_id' => $do,
					'host' => $re['host'],
					'value' => $ip,
				],
			];
		}
	}
	$successItem = getRecordItem($updateDomainItem, 'record', 'PUT', $host, $apiKey, $secretKey);
	if (count($successItem) != count($updateDomainItem)) { exit; }
	foreach ($successItem as $suc) {
		file_put_contents($logFile, "{$suc['data']['domain_name']}:{$suc['data']['value']}:[{$date}]\n", FILE_APPEND);
	}
	file_put_contents($ipFile, $ip);
}