<?php
/**
*
* @ This file is created by http://DeZender.Net
* @ deZender (PHP7 Decoder for ionCube Encoder)
*
* @ Version			:	4.1.0.0
* @ Author			:	DeZender
* @ Release on		:	15.05.2020
* @ Official site	:	http://DeZender.Net
*
*/

namespace JetBackup\Core\License;

class License
{
	const LICENSE_CHECK_URL = 'https://check.jetlicense.com';
	const LICENSE_LOCALKEY_DAYS = 259200;
	const LICENSE_LOCALKEY_CHECK_INTERVAL = 172800;
	const LICENSE_LOCALKEY_FAIL_INTERVAL = 3510;
	const LICENSE_NOTIFY_ERROR_INTERVAL = 86400;
	const LICENSE_PRODUCT_ID = '58ac64be19a4643cdf582727';
	const LICENSE_PUBLIC_KEY = '-----BEGIN PUBLIC KEY-----' . "\n" . 'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2F105dMYw8kTC54ANpMt' . "\n" . 'WaVKEFEoRd+D0YDRDB/EGgFbEUdkDvub6FfHcDdgfmRgjUOWap0yX2MpOCy/QA/P' . "\n" . 'SrIuSYe4+jv5J+cW2O6WbnhVdlAQTLOiOgiUYMuFNt6+gx4DaitoxD/p39elThfa' . "\n" . 'KsAawrrxBR0mEdn0JeE1k0l/bbhekzUubR9LReOtveXdMoVygrAQ52mQ0saOSmuB' . "\n" . 'Un2oa4kaWeZfCA/fYW8jMEEjmrftcT3XVi7yA5Fk/xQQ3eNSLIAx2gZf8B2g0zqa' . "\n" . '/QSq9+6BDM/6OdG9o+cMvpSoOojx5ApcQxAwHfSiISfibJ/49kmnP7okCRI7pNvE' . "\n" . '3wIDAQAB' . "\n" . '-----END PUBLIC KEY-----';
	const STATUS_ACTIVE = 'Active';
	const STATUS_TRIAL = 'Trial';
	const STATUS_TRIAL_EXPIRED = 'TrialExpired';
	const STATUS_CANCELLED = 'Cancelled';
	const STATUS_INVALID = 'Invalid';

	/**
	 * @return string
	 */
	static private function _handshake()
	{
		if (file_exists('/sys/class/dmi/id/product_uuid')) {
			$code = \JetBackup\Core\IO\Shell::exec('/bin/cat /sys/class/dmi/id/product_uuid', $response);
			if (!$code && isset($response[0])) {
				return md5($response[0]);
			}
		}

		if (file_exists('/var/lib/dbus/machine-id')) {
			$code = \JetBackup\Core\IO\Shell::exec('/bin/cat /var/lib/dbus/machine-id', $response);
			if (!$code && isset($response[0])) {
				return md5($response[0]);
			}
		}

		$code = \JetBackup\Core\IO\Shell::exec('/sbin/ifconfig -a | /bin/grep -i \'hwaddr\' | /bin/awk \' { print $5 } \' | /usr/bin/head -n1', $response);
		if (!$code && isset($response[0])) {
			return md5($response[0]);
		}

		$code = \JetBackup\Core\IO\Shell::exec('/sbin/ip addr | /bin/grep -i \'ether\' | /bin/awk  \' { print $2 } \' | /usr/bin/head -n1', $response);
		if (!$code && isset($response[0])) {
			return md5($response[0]);
		}

		$code = \JetBackup\Core\IO\Shell::exec('/sbin/ifconfig -a | /bin/grep -i \'ether\' | /bin/awk \' { print $2 } \' | /usr/bin/head -n1', $response);
		if (!$code && isset($response[0])) {
			return md5($response[0]);
		}

		if (file_exists('/etc/machine-id')) {
			$code = \JetBackup\Core\IO\Shell::exec('/bin/cat /etc/machine-id', $response);
			if (!$code && isset($response[0])) {
				return md5($response[0]);
			}
		}

		return '';
	}

	/**
	 * @param $error
	 * @param bool $force
	 *
	 * @throws JBException
	 * @throws InvalidArgumentException
	 * @throws MongoException
	 */
	static private function _checkFailed($error, $force = false)
	{
		$license = \JetBackup\Core\Factory::getSettingsLicense();
		if ($force || ($license->getNotifyDate() < (time() - 21600))) {
			$license->setNotifyDate();
			$license->save();
			\JetBackup\Core\Alert\Alert::add('License check failed', 'There was a failed license check. Error: ' . $error, \JetBackup\Core\Alert\Alert::LEVEL_WARNING);
		}
	}

	/**
	 * @param bool $reset
	 * @param string $message
	 * @throws JBException
	 */
	static private function _handleNotify($reset = false, $message = '')
	{
		$license = \JetBackup\Core\Factory::getSettingsLicense();
		$update_time = NULL;

		if ($reset) {
			$update_time = 0;
		}
		else if (!$license->getNotifyDate()) {
			$update_time = time() + self::LICENSE_NOTIFY_ERROR_INTERVAL;
		}
		else if ($license->getNotifyDate() < time()) {
			self::_checkFailed($message, true);
			$update_time = 0;
		}

		if ($update_time != NULL) {
			$license->setNotifyDate($update_time);
			$license->save();
		}
	}

	/**
	 * @throws LicenseException
	 * @throws JBException
	 */
	static public function retrieveLocalKey()
	{
		$license = \JetBackup\Core\Factory::getSettingsLicense();
		$localkey_details = new LicenseLocalKey();
		$handshake = self::_handshake();

		if (!$handshake) {
			$message = 'Unable to get server handshake key';
			self::_checkFailed($message);
			$license->setLocalKeyInvalid($message, $localkey_details);
			$license->save();
			return NULL;
		}

		$public_key = openssl_get_publickey(static::LICENSE_PUBLIC_KEY);
		$handshake_encrypted = '';

		if (!openssl_public_encrypt($handshake, $handshake_encrypted, $public_key)) {
			$message = 'Unable to prepare handshake key for validation';
			self::_checkFailed($message);
			$license->setLocalKeyInvalid($message, $localkey_details);
			$license->save();
			return NULL;
		}

		$panel_info = \JetBackup\Core\Entities\Util::getPanelInfo();
		$postfields = [
			'output'     => 'json',
			'product_id' => static::LICENSE_PRODUCT_ID,
			'handshake'  => base64_encode($handshake_encrypted),
			'info'       => ['Hostname' => gethostname(), 'Panel_Name' => trim($panel_info['name']), 'Panel_Version' => trim($panel_info['version']), 'Product_Version' => trim(\JetBackup\Core\Entities\Util::getVersion()), 'Product_Tier' => trim($panel_info['tier']), 'Kernel_Release' => php_uname('r'), 'Kernel_Version' => php_uname('v')]
		];

		try {
			$http = new \GuzzleHttp\Client();
			$response = $http->request('POST', self::LICENSE_CHECK_URL, ['form_params' => $postfields]);
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