function PlexCheckLicense($licensekey, $localkey = "")
{
$whmcsurl = "https://www.whmcssmarters.com/clients/";
$licensing_secret_key = "media";
$check_token = time() . md5(mt_rand(1000000000, 10000000000.0) . $licensekey);
$checkdate = date("Ymd");
$usersip = isset($_SERVER["SERVER_ADDR"]) ? $_SERVER["SERVER_ADDR"] : $_SERVER["LOCAL_ADDR"];
$localkeydays = 10;
$allowcheckfaildays = 7;
$localkeyvalid = false;
if ($localkey) {
$localkey = str_replace("\n", "", $localkey);
$localdata = substr($localkey, 0, strlen($localkey) - 32);
$md5hash = substr($localkey, strlen($localkey) - 32);
if ($md5hash == md5($localdata . $licensing_secret_key)) {
$localdata = strrev($localdata);
$md5hash = substr($localdata, 0, 32);
$localdata = substr($localdata, 32);
$localdata = base64_decode($localdata);
$localkeyresults = unserialize($localdata);
$originalcheckdate = $localkeyresults["checkdate"];
if ($md5hash == md5($originalcheckdate . $licensing_secret_key)) {
$localexpiry = date("Ymd", mktime(0, 0, 0, date("m"), date("d") - $localkeydays, date("Y")));
if ($localexpiry < $originalcheckdate) {
$localkeyvalid = true;
$results = $localkeyresults;
$validdomains = explode(",", $results["validdomain"]);
if (!in_array($_SERVER["SERVER_NAME"], $validdomains)) {
$localkeyvalid = false;
$localkeyresults["status"] = "Invalid";
$results = array();
}
$validips = explode(",", $results["validip"]);
if (!in_array($usersip, $validips)) {
$localkeyvalid = false;
$localkeyresults["status"] = "Invalid";
$results = array();
}
if ($results["validdirectory"] != dirname(__FILE__)) {
$localkeyvalid = false;
$localkeyresults["status"] = "Invalid";
$results = array();
}
}
}
}
}
if (!$localkeyvalid) {
$postfields["licensekey"] = $licensekey;
$postfields["domain"] = $_SERVER["SERVER_NAME"];
$postfields["ip"] = $usersip;
$postfields["dir"] = dirname(__FILE__);
if ($check_token) {
$postfields["check_token"] = $check_token;
}
if (function_exists("curl_exec")) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $whmcsurl . "modules/servers/licensing/verify.php");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$data = curl_exec($ch);
curl_close($ch);
} else {
$fp = fsockopen($whmcsurl, 80, $errno, $errstr, 5);
if ($fp) {
$querystring = "";
foreach ($postfields as $k => $v) {
$querystring .= (string) $k . "=" . urlencode($v) . "&";
}
$header = "POST " . $whmcsurl . "modules/servers/licensing/verify.php HTTP/1.0\r\n";
$header .= "Host: " . $whmcsurl . "\r\n";
$header .= "Content-type: application/x-www-form-urlencoded\r\n";
$header .= "Content-length: " . @strlen($querystring) . "\r\n";
$header .= "Connection: close\r\n\r\n";
$header .= $querystring;
$data = "";
@stream_set_timeout($fp, 20);
@fputs($fp, $header);
$status = @socket_get_status($fp);
while (!feof($fp) && $status) {
$data .= @fgets($fp, 1024);
$status = @socket_get_status($fp);
}
@fclose($fp);
}
}
if (!$data) {
$localexpiry = date("Ymd", mktime(0, 0, 0, date("m"), date("d") - ($localkeydays + $allowcheckfaildays), date("Y")));
if ($localexpiry < $originalcheckdate) {
$results = $localkeyresults;
} else {
$results["status"] = "Invalid";
$results["description"] = "Remote Check Failed";
return $results;
}
}
preg_match_all("/<(.*?)>([^<]+)<\\/\\1>/i", $data, $matches);
$results = array();
foreach ($matches[1] as $k => $v) {
$results[$v] = $matches[2][$k];
}
if ($results["md5hash"] && $results["md5hash"] != md5($licensing_secret_key . $check_token)) {
$results["status"] = "Invalid";
$results["description"] = "MD5 Checksum Verification Failed";
return $results;
}
if ($results["status"] == "Active") {
$results["checkdate"] = $checkdate;
$data_encoded = serialize($results);
$data_encoded = base64_encode($data_encoded);
$data_encoded = md5($checkdate . $licensing_secret_key) . $data_encoded;
$data_encoded = strrev($data_encoded);
$data_encoded = $data_encoded . md5($data_encoded . $licensing_secret_key);
$data_encoded = wordwrap($data_encoded, 80, "\n", true);
$results["localkey"] = $data_encoded;
}
$results["remotecheck"] = true;
}
unset($postfields);
unset($data);
unset($matches);
unset($whmcsurl);
unset($licensing_secret_key);
unset($checkdate);
unset($usersip);
unset($localkeydays);
unset($allowcheckfaildays);
unset($md5hash);
return $results;
}
API) (Library Section IDS) (Client Identifier) (Product Name)
