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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
Cokiee Shell
| Current Path : /var/www/web284/html/wp-content/plugins/wordfence/lib/ |
| Current File : //var/www/web284/html/wp-content/plugins/wordfence/lib/wfCrawl.php |
<?php
require_once('wfUtils.php');
class wfCrawl {
public static function isCrawler($UA){
$browscap = new wfBrowscap();
$b = $browscap->getBrowser($UA);
if($b && isset($b['Crawler']) && $b['Crawler']){
return true;
}
return false;
}
public static function verifyCrawlerPTR($hostPattern, $IP){
global $wpdb; $table = $wpdb->base_prefix . 'wfCrawlers';
$db = new wfDB();
$IPn = wfUtils::inet_pton($IP);
$status = $db->querySingle("select status from $table where IP=%s and patternSig=UNHEX(MD5('%s')) and lastUpdate > unix_timestamp() - %d", $IPn, $hostPattern, WORDFENCE_CRAWLER_VERIFY_CACHE_TIME);
if($status){
if($status == 'verified'){
return true;
} else {
return false;
}
}
$host = wfUtils::reverseLookup($IP);
if(! $host){
$db->queryWrite("insert into $table (IP, patternSig, status, lastUpdate, PTR) values (%s, UNHEX(MD5('%s')), '%s', unix_timestamp(), '%s') ON DUPLICATE KEY UPDATE status='%s', lastUpdate=unix_timestamp(), PTR='%s'", $IPn, $hostPattern, 'noPTR', '', 'noPTR', '');
return false;
}
if(preg_match($hostPattern, $host)){
$resultIPs = wfUtils::resolveDomainName($host);
$addrsMatch = false;
foreach($resultIPs as $resultIP){
if($resultIP == $IP){
$addrsMatch = true;
break;
}
}
if($addrsMatch){
$db->queryWrite("insert into $table (IP, patternSig, status, lastUpdate, PTR) values (%s, UNHEX(MD5('%s')), '%s', unix_timestamp(), '%s') ON DUPLICATE KEY UPDATE status='%s', lastUpdate=unix_timestamp(), PTR='%s'", $IPn, $hostPattern, 'verified', $host, 'verified', $host);
return true;
} else {
$db->queryWrite("insert into $table (IP, patternSig, status, lastUpdate, PTR) values (%s, UNHEX(MD5('%s')), '%s', unix_timestamp(), '%s') ON DUPLICATE KEY UPDATE status='%s', lastUpdate=unix_timestamp(), PTR='%s'", $IPn, $hostPattern, 'fwdFail', $host, 'fwdFail', $host);
return false;
}
} else {
$db->queryWrite("insert into $table (IP, patternSig, status, lastUpdate, PTR) values (%s, UNHEX(MD5('%s')), '%s', unix_timestamp(), '%s') ON DUPLICATE KEY UPDATE status='%s', lastUpdate=unix_timestamp(), PTR='%s'", $IPn, $hostPattern, 'badPTR', $host, 'badPTR', $host);
return false;
}
}
public static function isGooglebot(){
$UA = (isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '');
if(preg_match('/Googlebot\/\d\.\d/', $UA)){ // UA: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html) or (rarely used): Googlebot/2.1 (+http://www.google.com/bot.html)
return true;
}
return false;
}
public static function isGoogleCrawler($UA = null){
if ($UA === null) {
$UA = (isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '');
}
foreach(self::$googPat as $pat){
if(preg_match($pat . 'i', $UA)){
return true;
}
}
return false;
}
private static $googPat = array(
'@^Mozilla/5\\.0 \\(.*Google Keyword Tool.*\\)$@',
'@^Mozilla/5\\.0 \\(.*Feedfetcher\\-Google.*\\)$@',
'@^Feedfetcher\\-Google\\-iGoogleGadgets.*$@',
'@^searchbot admin\\@google\\.com$@',
'@^Google\\-Site\\-Verification.*$@',
'@^Google OpenSocial agent.*$@',
'@^.*Googlebot\\-Mobile/2\\..*$@',
'@^AdsBot\\-Google\\-Mobile.*$@',
'@^google \\(.*Enterprise.*\\)$@',
'@^Mediapartners\\-Google.*$@',
'@^GoogleFriendConnect.*$@',
'@^googlebot\\-urlconsole$@',
'@^.*Google Web Preview.*$@',
'@^Feedfetcher\\-Google.*$@',
'@^AppEngine\\-Google.*$@',
'@^Googlebot\\-Video.*$@',
'@^Googlebot\\-Image.*$@',
'@^Google\\-Sitemaps.*$@',
'@^Googlebot/Test.*$@',
'@^Googlebot\\-News.*$@',
'@^.*Googlebot/2\\.1.*$@',
'@^AdsBot\\-Google.*$@',
'@^Google$@'
);
/**
* Has correct user agent and PTR record points to .googlebot.com domain.
*
* @param string|null $ip
* @param string|null $ua
* @return bool
*/
public static function isVerifiedGoogleCrawler($ip = null, $ua = null) {
static $verified;
if (!isset($verified)) {
$verified = array();
}
if ($ip === null) {
$ip = wfUtils::getIP();
}
if (array_key_exists($ip, $verified)) {
return $verified[$ip];
}
if (self::isGoogleCrawler($ua)) {
if (self::verifyCrawlerPTR(wordfence::getLog()->getGooglePattern(), $ip)) {
$verified[$ip] = true;
return $verified[$ip];
}
if (self::verifyGooglebotViaNOC1($ip)) {
$verified[$ip] = true;
return $verified[$ip];
}
}
$verified[$ip] = false;
return $verified[$ip];
}
/**
* @param string|null $ip
* @return bool
*/
public static function verifyGooglebotViaNOC1($ip = null) {
global $wpdb;
$table = $wpdb->base_prefix . 'wfCrawlers';
if ($ip === null) {
$ip = wfUtils::getIP();
}
$db = new wfDB();
$IPn = wfUtils::inet_pton($ip);
$patternSig = 'googlenoc1';
$status = $db->querySingle("select status from $table
where IP=%s
and patternSig=UNHEX(MD5('%s'))
and lastUpdate > unix_timestamp() - %d",
$IPn,
$patternSig,
WORDFENCE_CRAWLER_VERIFY_CACHE_TIME);
if ($status === 'verified') {
return true;
} else if ($status === 'fakeBot') {
return false;
}
$api = new wfAPI(wfConfig::get('apiKey'), wfUtils::getWPVersion());
try {
$data = $api->call('verify_googlebot', array(
'ip' => $ip,
));
if (is_array($data) && !empty($data['verified'])) {
// Cache results
$db->queryWrite("insert into $table (IP, patternSig, status, lastUpdate)
values (%s, UNHEX(MD5('%s')), '%s', unix_timestamp())
ON DUPLICATE KEY UPDATE status='%3\$s', lastUpdate=unix_timestamp()",
$IPn, $patternSig, 'verified');
return true;
} else {
$db->queryWrite("insert into $table (IP, patternSig, status, lastUpdate)
values (%s, UNHEX(MD5('%s')), '%s', unix_timestamp())
ON DUPLICATE KEY UPDATE status='%3\$s', lastUpdate=unix_timestamp()",
$IPn, $patternSig, 'fakeBot');
}
} catch (Exception $e) {
// Do nothing, bail
}
return false;
}
}
?>
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