public function handle(Request $request, Response $response)
{
$headers = array_change_key_case($request->getHeaders(), CASE_LOWER);
// Only enable when the X-Blackfire-Query header is present
if (!isset($headers['x-blackfire-query'])) {
return array();
}
$probe = new \BlackfireProbe($headers['x-blackfire-query']);
// Stop if it failed
if (!$probe->enable()) {
return array();
}
// Stop profiling once the request ends
$response->on('end', array($probe, 'close'));
// Return the header
$header = explode(':', $probe->getResponseLine(), 2);
return array('x-' . $header[0] => $header[1]);
}
