/**
* Analyzes user agents claiming to be Baidu Spider.
*
* @param \FlameCore\Gatekeeper\Visitor $visitor The visitor information
* @return int
* @throws \FlameCore\Gatekeeper\Exceptions\StopScreeningException
*/
protected function checkBaiduBot(Visitor $visitor)
{
if (Utils::isIPv6($visitor->getIP())) {
return CheckInterface::RESULT_OKAY;
}
if (Utils::matchCIDR($visitor->getIP(), ['119.63.192.0/21', '123.125.71.0/24', '180.76.0.0/16', '220.181.0.0/16'])) {
throw new StopScreeningException();
}
return CheckInterface::RESULT_UNSURE;
}
/**
* {@inheritdoc}
*/
public function match($value)
{
return Utils::matchCIDR($value, $this->list);
}
