/**
* Returns true if proxy detected a self-request
*
* @param RequestInterface $request
* @param ConfigInterface $config
*
* @return bool
*/
private function isSelfRequest(RequestInterface $request, ConfigInterface $config)
{
$proxyUniqueHeaderName = 'PROXY-ID';
$proxyUniqueHeaderValue = md5($config->getSecret() . $request->getFingerprint());
if ($request->hasHeaderWithValue($proxyUniqueHeaderName, $proxyUniqueHeaderValue)) {
return true;
}
$request->addHeader($proxyUniqueHeaderName, $proxyUniqueHeaderValue);
return false;
}
