/**
* Gets the <tt>TransportAddress</tt> specified in the XOR-MAPPED-ADDRESS attribute of a specific
* <tt>Response</tt>.
*
* @param response the <tt>Response</tt> from which the XOR-MAPPED-ADDRESS attribute is to be
* retrieved and its <tt>TransportAddress</tt> value is to be returned
* @return the <tt>TransportAddress</tt> specified in the XOR-MAPPED-ADDRESS attribute of
* <tt>response</tt>
*/
protected TransportAddress getMappedAddress(Response response) {
Attribute attribute = response.getAttribute(Attribute.XOR_MAPPED_ADDRESS);
if (attribute instanceof XorMappedAddressAttribute) {
return ((XorMappedAddressAttribute) attribute).getAddress(response.getTransactionID());
}
// old STUN servers (RFC3489) send MAPPED-ADDRESS address
attribute = response.getAttribute(Attribute.MAPPED_ADDRESS);
if (attribute instanceof MappedAddressAttribute) {
return ((MappedAddressAttribute) attribute).getAddress();
} else return null;
}
private void allocateAddress(TransportAddress turnServerAddress)
throws StunException, IOException {
logger.info("Requesting address allocation at {}", serverAddress);
Response response = sendBlockingStunRequest(MessageFactory.createAllocateRequest(UDP, false));
byte[] transactionID = response.getTransactionID();
relayedAddress =
((XorRelayedAddressAttribute) response.getAttribute(XOR_RELAYED_ADDRESS))
.getAddress(transactionID);
mappedAddress =
((XorMappedAddressAttribute) response.getAttribute(XOR_MAPPED_ADDRESS))
.getAddress(transactionID);
logger.info("Relayed address: {}, mapped address: {}", relayedAddress, mappedAddress);
refreshTask = scheduleRefresh(refreshInterval);
}