public void setNpnProtocols(SSLSocket socket, List<Protocol> npnProtocols) {
boolean alpnSupported = SET_ALPN_PROTOCOLS.isSupported(socket);
boolean npnSupported = SET_NPN_PROTOCOLS.isSupported(socket);
if (alpnSupported || npnSupported) {
byte[] protocols = concatLengthPrefixed(npnProtocols);
if (alpnSupported) {
SET_ALPN_PROTOCOLS.invokeWithoutCheckedException(socket, protocols);
}
if (npnSupported) {
SET_NPN_PROTOCOLS.invokeWithoutCheckedException(socket, protocols);
}
}
}
public ByteString getNpnSelectedProtocol(SSLSocket socket) {
boolean alpnSupported = GET_ALPN_SELECTED_PROTOCOL.isSupported(socket);
boolean npnSupported = GET_NPN_SELECTED_PROTOCOL.isSupported(socket);
if (!alpnSupported && !npnSupported) {
return null;
}
if (alpnSupported) {
byte[] alpnResult =
(byte[]) GET_ALPN_SELECTED_PROTOCOL.invokeWithoutCheckedException(socket, new Object[0]);
if (alpnResult != null) {
return ByteString.of(alpnResult);
}
}
if (npnSupported) {
byte[] npnResult =
(byte[]) GET_NPN_SELECTED_PROTOCOL.invokeWithoutCheckedException(socket, new Object[0]);
if (npnResult != null) {
return ByteString.of(npnResult);
}
}
return null;
}
public void enableTlsExtensions(SSLSocket socket, String uriHost) {
SET_USE_SESSION_TICKETS.invokeOptionalWithoutCheckedException(socket, Boolean.valueOf(true));
SET_HOSTNAME.invokeOptionalWithoutCheckedException(socket, uriHost);
}