/**
* Validates a given API request as being sent from origin via request signature
*
* @param string $body
*
* @return void
*/
private function validateRequest($request)
{
$token = $request['requestToken'];
unset($request['requestToken']);
if ($token === OriginAPI::generateSignedRequest(http_build_query($request))) {
return;
}
Output::render404();
}