/**
* Does the request to the Node server and returns the responseText (empty string on failure).
*/
private static function makeRequest($params)
{
global $wgReadOnly;
wfProfileIn(__METHOD__);
$response = "";
ChatHelper::debug(__METHOD__ . ': Method called ', $params);
// NOTE: When we fail over, the chat server host doesn't change which backend it points to (since there isn't
// even a chat server in the backup datacenter(s)), so if we're in read-only, even though this isn't a write
// operation, abort trying to contact the node server since it could be unavailable (in the event of complete
// network unavailability in the primary datacenter). - BugzId 11047
if (empty($wgReadOnly)) {
$requestUrl = "http://" . NodeApiClient::getHostAndPort() . "/api?" . http_build_query($params);
$response = Http::get($requestUrl, 'default', array('noProxy' => true));
if ($response === false) {
$response = "";
}
}
wfProfileOut(__METHOD__);
return $response;
}
