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<?php
/*
php_value auto_prepend_file ~/wp-content/plugins/wordfence/waf/bootstrap.php
*/
if (!defined('WFWAF_AUTO_PREPEND')) {
define('WFWAF_AUTO_PREPEND', true);
}
require_once dirname(__FILE__) . '/wfWAFUserIPRange.php';
require_once dirname(__FILE__) . '/../vendor/wordfence/wf-waf/src/init.php';
class wfWAFWordPressRequest extends wfWAFRequest {
/**
* @param wfWAFRequest|null $request
* @return wfWAFRequest
*/
public static function createFromGlobals($request = null) {
if (version_compare(phpversion(), '5.3.0') >= 0) {
$class = get_called_class();
$request = new $class();
} else {
$request = new self();
}
return parent::createFromGlobals($request);
}
public function getIP() {
$howGet = wfWAF::getInstance()->getStorageEngine()->getConfig('howGetIPs');
if (is_string($howGet) && is_array($_SERVER) && array_key_exists($howGet, $_SERVER)) {
$ips[] = $_SERVER[$howGet];
}
$ips[] = $ip = (is_array($_SERVER) && array_key_exists('REMOTE_ADDR', $_SERVER)) ? $_SERVER['REMOTE_ADDR'] : '127.0.0.1';
foreach ($ips as $ip) {
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 | FILTER_FLAG_IPV6 | FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) !== false) {
return $ip;
}
}
return $ip;
}
}
class wfWAFWordPressObserver extends wfWAFBaseObserver {
public function beforeRunRules() {
// Whitelisted URLs (in WAF config)
$whitelistedURLs = wfWAF::getInstance()->getStorageEngine()->getConfig('whitelistedURLs');
if ($whitelistedURLs) {
$whitelistPattern = "";
foreach ($whitelistedURLs as $whitelistedURL) {
$whitelistPattern .= preg_replace('/\\\\\*/', '.*?', preg_quote($whitelistedURL, '/')) . '|';
}
$whitelistPattern = '/^(?:' . substr($whitelistPattern, 0, -1) . ')$/i';
wfWAFRule::create(wfWAF::getInstance(), 0x8000000, 'rule', 'whitelist', 0, 'User Supplied Whitelisted URL', 'allow',
new wfWAFRuleComparisonGroup(
new wfWAFRuleComparison(wfWAF::getInstance(), 'match', $whitelistPattern, array(
'request.uri',
))
)
)->evaluate();
}
// Whitelisted IPs (Wordfence config)
$whitelistedIPs = wfWAF::getInstance()->getStorageEngine()->getConfig('whitelistedIPs');
if ($whitelistedIPs) {
if (!is_array($whitelistedIPs)) {
$whitelistedIPs = explode(',', $whitelistedIPs);
}
foreach ($whitelistedIPs as $whitelistedIP) {
$ipRange = new wfWAFUserIPRange($whitelistedIP);
if ($ipRange->isIPInRange(wfWAF::getInstance()->getRequest()->getIP())) {
throw new wfWAFAllowException('Wordfence whitelisted IP.');
}
}
}
}
public function afterRunRules()
{
//wfWAFLogException
$watchedIPs = wfWAF::getInstance()->getStorageEngine()->getConfig('watchedIPs');
if ($watchedIPs) {
if (!is_array($watchedIPs)) {
$watchedIPs = explode(',', $watchedIPs);
}
foreach ($watchedIPs as $watchedIP) {
$ipRange = new wfWAFUserIPRange($watchedIP);
if ($ipRange->isIPInRange(wfWAF::getInstance()->getRequest()->getIP())) {
throw new wfWAFLogException('Wordfence watched IP.');
}
}
}
}
}
/**
*
*/
class wfWAFWordPress extends wfWAF {
/** @var wfWAFRunException */
private $learningModeAttackException;
/**
* @param wfWAFBlockException $e
* @param int $httpCode
*/
public function blockAction($e, $httpCode = 403) {
if ($this->isInLearningMode()) {
register_shutdown_function(array(
$this, 'whitelistFailedRulesIfNot404',
));
$this->getStorageEngine()->logAttack($e->getFailedRules(), $e->getParamKey(), $e->getParamValue(), $e->getRequest());
$this->setLearningModeAttackException($e);
} else {
parent::blockAction($e, $httpCode);
}
}
/**
* @param wfWAFBlockXSSException $e
* @param int $httpCode
*/
public function blockXSSAction($e, $httpCode = 403) {
if ($this->isInLearningMode()) {
register_shutdown_function(array(
$this, 'whitelistFailedRulesIfNot404',
));
$this->getStorageEngine()->logAttack($e->getFailedRules(), $e->getParamKey(), $e->getParamValue(), $e->getRequest());
$this->setLearningModeAttackException($e);
} else {
parent::blockXSSAction($e, $httpCode);
}
}
/**
*
*/
public function runCron() {
/**
* Removed sending attack data. Attack data is sent in @see wordfence::veryFirstAction
*/
$cron = $this->getStorageEngine()->getConfig('cron');
if (is_array($cron)) {
/** @var wfWAFCronEvent $event */
foreach ($cron as $index => $event) {
$event->setWaf($this);
if ($event->isInPast()) {
$event->fire();
$newEvent = $event->reschedule();
if ($newEvent instanceof wfWAFCronEvent && $newEvent !== $event) {
$cron[$index] = $newEvent;
} else {
unset($cron[$index]);
}
}
}
}
$this->getStorageEngine()->setConfig('cron', $cron);
}
/**
*
*/
public function whitelistFailedRulesIfNot404() {
/** @var WP_Query $wp_query */
global $wp_query;
if (defined('ABSPATH') &&
isset($wp_query) && class_exists('WP_Query') && $wp_query instanceof WP_Query &&
method_exists($wp_query, 'is_404') && $wp_query->is_404() &&
function_exists('is_admin') && !is_admin()) {
return;
}
$this->whitelistFailedRules();
}
/**
* @param $ip
* @return mixed
*/
public function isIPBlocked($ip) {
return false;
}
public function uninstall() {
parent::uninstall();
@unlink(rtrim(WFWAF_LOG_PATH . '/') . '/.htaccess');
@rmdir(WFWAF_LOG_PATH);
}
/**
* @return wfWAFRunException
*/
public function getLearningModeAttackException() {
return $this->learningModeAttackException;
}
/**
* @param wfWAFRunException $learningModeAttackException
*/
public function setLearningModeAttackException($learningModeAttackException) {
$this->learningModeAttackException = $learningModeAttackException;
}
}
if (!defined('WFWAF_LOG_PATH')) {
define('WFWAF_LOG_PATH', WP_CONTENT_DIR . '/wflogs/');
}
if (!is_dir(WFWAF_LOG_PATH)) {
@mkdir(WFWAF_LOG_PATH, 0775);
@chmod(WFWAF_LOG_PATH, 0775);
@file_put_contents(rtrim(WFWAF_LOG_PATH . '/') . '/.htaccess', <<<APACHE
<IfModule mod_authz_core.c>
Require all denied
</IfModule>
<IfModule !mod_authz_core.c>
Order deny,allow
Deny from all
</IfModule>
APACHE
);
@chmod(rtrim(WFWAF_LOG_PATH . '/') . '/.htaccess', 0664);
}
wfWAF::setInstance(new wfWAFWordPress(
wfWAFWordPressRequest::createFromGlobals(),
new wfWAFStorageFile(WFWAF_LOG_PATH . 'attack-data.php', WFWAF_LOG_PATH . 'ips.php', WFWAF_LOG_PATH . 'config.php', WFWAF_LOG_PATH . 'wafRules.rules')
));
wfWAF::getInstance()->getEventBus()->attach(new wfWAFWordPressObserver);
try {
$rulesFiles = array(
WFWAF_LOG_PATH . 'rules.php',
// WFWAF_PATH . 'rules.php',
);
foreach ($rulesFiles as $rulesFile) {
if (!file_exists($rulesFile)) {
@touch($rulesFile);
}
@chmod($rulesFile, 0664);
if (is_writable($rulesFile)) {
wfWAF::getInstance()->setCompiledRulesFile($rulesFile);
break;
}
}
if (!file_exists(wfWAF::getInstance()->getCompiledRulesFile()) || !filesize(wfWAF::getInstance()->getCompiledRulesFile())) {
try {
if (is_writable(wfWAF::getInstance()->getCompiledRulesFile()) &&
wfWAF::getInstance()->getStorageEngine()->getConfig('apiKey') !== null &&
wfWAF::getInstance()->getStorageEngine()->getConfig('createInitialRulesDelay') < time()
) {
$event = new wfWAFCronFetchRulesEvent(time() - 60);
$event->setWaf(wfWAF::getInstance());
$event->fire();
wfWAF::getInstance()->getStorageEngine()->setConfig('createInitialRulesDelay', time() + (5 * 60));
}
} catch (wfWAFBuildRulesException $e) {
// Log this somewhere
error_log($e->getMessage());
} catch (Exception $e) {
// Suppress this
error_log($e->getMessage());
}
}
if (WFWAF_DEBUG && file_exists(wfWAF::getInstance()->getStorageEngine()->getRulesDSLCacheFile())) {
try {
wfWAF::getInstance()->updateRuleSet(file_get_contents(wfWAF::getInstance()->getStorageEngine()->getRulesDSLCacheFile()), false);
} catch (wfWAFBuildRulesException $e) {
$GLOBALS['wfWAFDebugBuildException'] = $e;
} catch (Exception $e) {
$GLOBALS['wfWAFDebugBuildException'] = $e;
}
}
try {
wfWAF::getInstance()->run();
} catch (wfWAFBuildRulesException $e) {
// Log this
error_log($e->getMessage());
} catch (Exception $e) {
// Suppress this
error_log($e->getMessage());
}
} catch (wfWAFStorageFileConfigException $e) {
// Let this request through for now
error_log($e->getMessage());
} catch (wfWAFStorageFileException $e) {
// We need to choose another storage engine here.
}