@Override
public Result exchangeTerminating(HttpExchange exchange, Result result) {
if (result.isFailed()) return result;
HttpResponse response = exchange.getResponse();
if ((response.getVersion() == HttpVersion.HTTP_1_1)
&& (response.getStatus() == HttpStatus.SWITCHING_PROTOCOLS_101)) {
String connection = response.getHeaders().get(HttpHeader.CONNECTION);
if ((connection == null) || !connection.toLowerCase(Locale.US).contains("upgrade")) {
return new Result(
result,
new HttpResponseException(
"101 Switching Protocols without Connection: Upgrade not supported", response));
}
// Upgrade Response
HttpRequest request = exchange.getRequest();
if (request instanceof HttpConnectionUpgrader) {
HttpConnectionUpgrader listener = (HttpConnectionUpgrader) request;
try {
listener.upgrade(response, getHttpConnection());
} catch (Throwable x) {
return new Result(result, x);
}
}
}
return result;
}
