419 lines
13 KiB
PHP
419 lines
13 KiB
PHP
<?php
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if (defined('CZ_DEBUG') && CZ_DEBUG) {
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ini_set('display_errors', 1);
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ini_set('display_startup_errors', 1);
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error_reporting(E_ALL);
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}
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if (!defined('ASTRAPATH'))
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define('ASTRAPATH', dirname(__FILE__) . '/');
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$inc_path = get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/libraries/plugins';
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set_include_path($inc_path);
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/**
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* Description of Astra
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*
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*
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*/
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if (!class_exists('Astra')) {
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class Astra
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{
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public static $_db;
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public static $_config;
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public static $_ip;
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public static $_user_agent;
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public static $_is_search_engine;
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public static $_is_fake_search_engine_bot;
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public static $cz_lvl;
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public static function echo_debug($str)
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{
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if (CZ_DEBUG) {
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echo '<p>' . $str . "</p>\r\n";
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}
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}
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public function __construct()
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{
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require_once(ASTRAPATH . 'astra-config.php');
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require_once(ASTRAPATH . 'libraries/Config_options.php');
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if (!defined('CZ_DB_PATH')) {
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define('CZ_DB_PATH', dirname(__FILE__) . '/');
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}
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echo_debug('Astra Constuctor Loaded');
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echo_debug('Astra version - v' . CZ_ASTRA_CLIENT_VERSION . ' and PHP version - ' . PHP_VERSION);
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if (!$this->meets_requirements()) {
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echo_debug('Requirements not met');
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return FALSE;
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} else {
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echo_debug('Meets all Requirements');
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}
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self::$_config = new AstraConfig();
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if (CZ_ASTRA_ACTIVE) {
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echo_debug('Astra Active');
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require_once(ASTRAPATH . 'libraries/Astra_ip.php');
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$client_ip = new Astra_ip();
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self::$_ip = $client_ip->get_ip_address();
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if (trim(self::$_ip) == "") {
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self::$_ip = '103.16.70.12';
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}
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self::$_user_agent = !empty($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';
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if (!empty($cz_lvl)) {
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self::$cz_lvl = $cz_lvl;
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} else {
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self::$cz_lvl = get_cz_lvl();
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$cz_lvl = self::$cz_lvl;
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}
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echo_debug('Current IP: ' . self::$_ip);
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echo_debug('Current UA: ' . self::$_user_agent);
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echo_debug(self::$cz_lvl);
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echo_debug($cz_lvl);
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$this->check_search_engine();
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if (CZ_SETUP) {
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echo_debug('Has been Setup');
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$this->init();
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} else {
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echo_debug('NOT been Setup');
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if (isset($_SERVER['HTTP_HOST']) && $this->setup()) {
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echo_debug('Setup Complete');
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$this->init();
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}
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}
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} else {
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echo_debug('Astra not active');
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show_astra_debug_log();
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return;
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}
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show_astra_debug_log();
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}
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protected function meets_requirements()
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{
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if (!defined('PDO::ATTR_DRIVER_NAME')) {
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echo_debug('PDO Driver Missing');
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return FALSE;
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} else {
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echo_debug('PDO Loaded');
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}
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if (!in_array('sqlite', PDO::getAvailableDrivers(), TRUE)) {
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echo_debug('sqlite3 extension not loaded');
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return false;
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} else {
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echo_debug('SQLite loaded');
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}
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if (!file_exists(CZ_DB_PATH . 'db/' . CZ_DATABASE_NAME . '.db')) {
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echo_debug('<strong>Updating DB</strong>');
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$this->update_db();
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} else {
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/*
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unlink(ASTRAPATH . 'db/' . CZ_DATABASE_NAME . '.db');
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echo_debug('<strong>Updating DB</strong>');
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$this->update_db();
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*
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*/
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}
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return TRUE;
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}
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public function init()
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{
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echo_debug('Initializing');
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self::connect_db();
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$this->run();
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}
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public static function connect_db()
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{
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require_once(ASTRAPATH . 'libraries/SQLite_db.php');
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self::$_db = new SQLiteWrapper(self::$cz_lvl);
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}
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private function update_db()
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{
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require_once(ASTRAPATH . 'libraries/Update_DB.php');
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$update_db = new Update_DB();
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}
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public function setup()
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{
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if (empty($_SERVER)) {
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return false;
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}
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// Added for TC
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if (!defined("CZ_SECRET_KEY") || (defined("CZ_SECRET_KEY") && strlen(CZ_SECRET_KEY) < 2)) {
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echo_debug('Enc keys not set');
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return false;
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}
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/*
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if (file_exists(CZ_DB_PATH . 'db/' . CZ_DATABASE_NAME . 'db')) {
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if (unlink(CZ_DB_PATH . 'db/' . CZ_DATABASE_NAME . 'db')) {
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echo_debug('Deletd Already Set Database');
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} else {
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echo_debug('Unable to Delete Database');
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return FALSE;
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}
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}
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*/
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require_once(ASTRAPATH . 'libraries/Astra_setup.php');
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$astraSetup = new Astra_setup();
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$astraSetup->createAstraFiles();
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$rootApiUri = $astraSetup->getRootApiFileUri();
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require_once(ASTRAPATH . 'libraries/API_connect.php');
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$connect = new API_connect();
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$connect->setRootApiUri($rootApiUri);
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if (!$connect->setup()) {
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return FALSE;
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}
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require_once(ASTRAPATH . 'libraries/Update_DB.php');
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$update_db = new Update_DB();
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if (!$update_db) {
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return FALSE;
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}
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require_once(ASTRAPATH . 'libraries/Update_config.php');
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$update_config_file = Update_config('CZ_SETUP', base64_encode('TRUE'), FALSE);
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return $update_config_file;
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}
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public function run()
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{
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echo_debug('About to run');
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$blocked_or_trusted = self::$_db->is_blocked_or_trusted(self::$_ip, false, self::$_config);
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if ($blocked_or_trusted == "blocked" && !self::$_is_search_engine) {
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self::show_block_page();
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}
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if ($blocked_or_trusted == "trusted" || self::is_whitelisted_url() || self::$_is_search_engine) {
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echo_debug("Is trusted or whitelisted or a search engine");
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if (self::$_is_search_engine) {
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$is_trusted = self::$_db->edit_ip_exception('add', 'trusted', self::$_ip);
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}
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return TRUE;
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}
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$is_bad_bot = $this->is_bad_bot();
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if ($blocked_or_trusted == "blocked" || $is_bad_bot || self::$_is_fake_search_engine_bot) {
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echo_debug('You have been blocked');
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require_once(ASTRAPATH . 'libraries/API_connect.php');
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$connect = new API_connect();
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if ($is_bad_bot || self::$_is_fake_search_engine_bot) {
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// self::$_db->log_hit(self::$_ip);
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self::$_db->edit_ip_exception('add', 'blocked', self::$_ip);
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echo_debug('You are a badbot');
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$connect->send_request("badbot", array());
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echo_debug('Reported Blackbot status');
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}
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self::show_block_page();
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}
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$this->run_upload_scan();
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$this->run_IDS();
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$this->run_patches();
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if (!self::$_is_search_engine) {
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$this->run_token_bucket();
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}
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}
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protected function is_whitelisted_url()
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{
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if (!empty($_SERVER['REQUEST_URI'])) {
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$url = $_SERVER['REQUEST_URI'];
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$db_params = self::$_db->get_custom_params();
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$db_allowed_urls = $db_params['url'];
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$allowed_urls = array('/admin/', '/wp-admin', 'checkout', 'paypal', '/ipn.php', '/transaction', 'callback', 'contact-form-7', 'wc-ajax=', '/wc-api', '/wp-json', 'api/soap', 'api/v2_soap');
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$merge = array_merge($allowed_urls, $db_allowed_urls);
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//print_r($merge);
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foreach ($merge as $allowed_url) {
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if (strpos($url, $allowed_url) !== false) {
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return TRUE;
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}
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}
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}
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return FALSE;
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}
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public static function show_block_page($attack_param = null)
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{
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if (defined('CZ_ASTRA_MODE') && CZ_ASTRA_MODE == 'monitor') {
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return TRUE;
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}
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if (!headers_sent()) {
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header('HTTP/1.0 403 Forbidden');
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}
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echo_debug('About to show block page');
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if (file_exists(ASTRAPATH . 'block-page-custom.php')) {
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$block_page_path = ASTRAPATH . 'block-page-custom.php';
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} else {
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$block_page_path = ASTRAPATH . 'block-page.php';
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}
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if (!headers_sent()) {
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header('X-XSS-Protection: 1; mode=block');
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header('X-Frame-Options: deny');
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header('X-Content-Type-Options: nosniff');
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/* No cache headers */
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header('X-LiteSpeed-Cache-Control: no-cache');
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header("Expires: Tue, 03 Jul 2001 06:00:00 GMT");
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header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
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header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
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header("Cache-Control: post-check=0, pre-check=0", false);
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header("Pragma: no-cache");
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header("Connection: close");
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}
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if (file_exists($block_page_path)) {
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include($block_page_path);
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exit;
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die();
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}
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if (!headers_sent()) {
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header("Location: " . CZ_BLOCK_PAGE_URL); /* Redirect browser */
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} else {
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echo '<script>';
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echo "window.location = '" . CZ_BLOCK_PAGE_URL . "';";
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echo '</script>';
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}
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die("You are blocked");
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exit();
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}
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protected function run_upload_scan()
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{
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if (empty($_FILES)) {
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return true;
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}
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if (version_compare(PHP_VERSION, '5.4.0') >= 0) {
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echo_debug('Including mussel');
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$config = new AstraConfig();
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$data['key'] = 'file_uploads';
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$musselResult = $config->get_config($data);
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if ($musselResult) {
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$phpMusselConfig = json_decode($musselResult, true);
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if ($phpMusselConfig['status'] == 'TRUE') {
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require_once(ASTRAPATH . 'libraries/plugins/phpMussel/loader.php');
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} else {
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return false;
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}
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} else { // Run upload scan by default
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require_once(ASTRAPATH . 'libraries/plugins/phpMussel/loader.php');
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}
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} else {
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echo_debug('PHP version (' . PHP_VERSION . ') < 5.4.0 so not including Mussel');
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}
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}
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protected function run_ids()
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{
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require_once(ASTRAPATH . 'libraries/PHPIDS.php');
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echo_debug('Including IDS');
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$phpids = new PHPIDS(self::$_db, self::$_ip);
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}
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protected function run_patches()
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{
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require_once(ASTRAPATH . 'libraries/Virtual_patches.php');
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$patches = new Astra_virtual_patches();
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$patches->apply();
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$applied_patches = $patches->get_applied_patches();
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if (count($applied_patches) > 0) {
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self::$_db->log_hit(self::$_ip);
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self::show_block_page();
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}
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}
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protected function is_bad_bot()
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{
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$db = self::$_db->is_bad_bot(self::$_user_agent);
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if ($db && !self::$_is_search_engine) {
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return TRUE;
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}
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return FALSE;
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}
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protected function check_search_engine()
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{
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require_once(ASTRAPATH . 'libraries/Bad_bots.php');
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$bot = new Bad_bots(self::$_user_agent, self::$_ip);
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self::$_is_search_engine = $bot->is_search_engine();
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self::$_is_fake_search_engine_bot = $bot->is_fake_bot();
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return true;
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}
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function get_sso_token()
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{
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$time = strtolower(gmdate("FYhiA"));
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$str = CZ_CLIENT_KEY . '|' . CZ_ACCESS_KEY . '|' . $time;
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$token = hash_hmac('sha256', $str, CZ_SECRET_KEY, false);
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return $token;
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}
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protected function run_token_bucket()
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{
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return TRUE;
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require_once(ASTRAPATH . 'libraries/Token_bucket.php');
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Token_bucket::run();
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}
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}
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} |