<?php
/**
*
* @ This file is created by http://DeZender.Net
* @ deZender (PHP7 Decoder for ionCube Encoder)
*
* @ Version			:	5.0.1.0
* @ Author			:	DeZender
* @ Release on		:	22.04.2022
* @ Official site	:	http://DeZender.Net
*
*/

namespace WHMCS;

class License
{
	public const LICENSE_API_VERSION = '1.1';
	public const LICENSE_API_HOSTS = ['https://my.licenseman.net/'];
	private const STAGING_LICENSE_API_HOSTS = ['https://my.licenseman.net/'];
	public const UNLICENSED_KEY = 'LICENSE-REQUIRED';

	private $licensekey = '';
	private $keydata = null;
	private $salt = '';
	private $cliExtraLocalKeyDays = 10;
	private $localkeydays = 10;
	private $allowcheckfaildays = 5;
	private $useInternalLicensingMirror = false;
	private $debuglog = [];
	private $lastCurlError = null;
	static private $clientCount = null;

	public function checkFile($value)
	{
		if ($value !== 'a896faf2c31f2acd47b0eda0b3fd6070958f1161') {
			throw new Exception\Fatal('File version mismatch. Please contact support.');
		}

		return $this;
	}

	public function setLicenseKey($licenseKey)
	{
		$this->licensekey = $licenseKey;
		return $this;
	}

	public function setLocalKey($localKey)
	{
		$this->decodeLocal($localKey);
		return $this;
	}

	public function setSalt($version, $hash)
	{
		if (empty($version) || empty($hash)) {
			throw new Exception\License\LicenseError('Unable to generate licensing salt');
		}

		$this->salt = sha1(sprintf('WHMCS%s%s%s', $version, '|-|', $hash));
		return $this;
	}

	public function useInternalValidationMirror()
	{
		$this->useInternalLicensingMirror = true;
		return $this;
	}

	protected function getHosts()
	{
		return self::LICENSE_API_HOSTS;
	}

	public function getLicenseKey()
	{
		return $this->licensekey;
	}

	protected function getHostDomain()
	{
		$domain = (defined('WHMCS_LICENSE_DOMAIN') ? WHMCS_LICENSE_DOMAIN : '');

		if ($domain === '-') {
			$domain = '';
		}

		if (empty($domain)) {
			$this->debug('WHMCS_LICENSE_DOMAIN is empty, attempting fallback to SystemURL');
			$systemUrl = \App::getSystemURL();

			if (!empty($systemUrl)) {
				$systemUrlHost = parse_url($systemUrl, PHP_URL_HOST);

				if (!empty($systemUrlHost)) {
					$domain = $systemUrlHost;
				}
			}
			else {
				$this->debug('SystemURL is not set, fallback failed');
			}
		}

		if (empty($domain)) {
			throw new Exception\License\MissingServerNameError('Unable to retrieve current server name. Please check PHP/vhost configuration and ensure SERVER_NAME is displaying appropriately via PHP Info.');
		}

		$this->debug('Host Domain: ' . $domain);
		return $domain;
	}

	protected function getHostIP()
	{
		$ip = (defined('WHMCS_LICENSE_IP') ? WHMCS_LICENSE_IP : '');
		$this->debug('Host IP: ' . $ip);
		return $ip;
	}

	protected function getHostDir()
	{
		$directory = (defined('WHMCS_LICENSE_DIR') ? WHMCS_LICENSE_DIR : '');
		$this->debug('Host Directory: ' . $directory);
		return $directory;
	}

	private function getSalt()
	{
		return $this->salt;
	}

	protected function isLocalKeyValidToUse()
	{
		$licenseKey = $this->getKeyData('key');
		if (empty($licenseKey) || ($licenseKey !== $this->licensekey)) {
			throw new Exception\License\LicenseError('License Key Mismatch in Local Key');
		}

		$originalcheckdate = $this->getCheckDate();
		$localmax = Carbon::now()->startOfDay()->addDays(2);

		if ($originalcheckdate->gt($localmax)) {
			throw new Exception\License\LicenseError('Original check date is in the future');
		}
	}

	protected function hasLocalKeyExpired()
	{
		$originalCheckDate = $this->getCheckDate();
		$daysBeforeNewCheckIsRequired = $this->localkeydays;

		if ($this->isRunningInCLI()) {
			$daysBeforeNewCheckIsRequired += $this->cliExtraLocalKeyDays;
		}

		$localExpiryMax = Carbon::now()->startOfDay()->subDays($daysBeforeNewCheckIsRequired);
		if (!$originalCheckDate || $originalCheckDate->lt($localExpiryMax)) {
			throw new Exception\License\LicenseError('Original check date is outside allowed validity period');
		}
	}

	protected function buildPostData()
	{
		$whmcs = \DI::make('app');
		$systemStats = $whmcs->get_config('SystemStatsCache');

		if (!$systemStats) {
			$systemStats = (new Cron\Task\SystemConfiguration())->generateSystemStats();
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