public void mapdata(Message msg) {
long now = System.currentTimeMillis();
int pktid = msg.int32();
int off = msg.uint16();
int len = msg.uint16();
Defrag fragbuf;
synchronized (fragbufs) {
if ((fragbuf = fragbufs.get(pktid)) == null) {
fragbuf = new Defrag(len);
fragbufs.put(pktid, fragbuf);
}
fragbuf.add(msg.blob, 8, msg.blob.length - 8, off);
fragbuf.last = now;
if (fragbuf.done()) {
mapdata2(fragbuf.msg());
fragbufs.remove(pktid);
}
/* Clean up old buffers */
for (Iterator<Map.Entry<Integer, Defrag>> i = fragbufs.entrySet().iterator(); i.hasNext(); ) {
Map.Entry<Integer, Defrag> e = i.next();
Defrag old = e.getValue();
if (now - old.last > 10000) i.remove();
}
}
}
/**
* Notifies this <tt>ResponseCollector</tt> that a transaction described by the specified
* <tt>BaseStunMessageEvent</tt> has failed. The possible reasons for the failure include
* timeouts, unreachable destination, etc.
*
* @param event the <tt>BaseStunMessageEvent</tt> which describes the failed transaction and the
* runtime type of which specifies the failure reason
* @see AbstractResponseCollector#processFailure(BaseStunMessageEvent)
*/
@Override
protected void processFailure(BaseStunMessageEvent event) {
TransactionID transactionID = event.getTransactionID();
logger.finest("A transaction expired: tranid=" + transactionID);
logger.finest("localAddr=" + hostCandidate);
/*
* Clean up for the purposes of the workaround which determines the STUN
* Request to which a STUN Response responds.
*/
Request request;
synchronized (requests) {
request = requests.remove(transactionID);
}
if (request == null) {
Message message = event.getMessage();
if (message instanceof Request) request = (Request) message;
}
boolean completedResolvingCandidate = true;
try {
if (processErrorOrFailure(null, request, transactionID)) completedResolvingCandidate = false;
} finally {
if (completedResolvingCandidate) completedResolvingCandidate(request, null);
}
}
public void mapdata2(Message msg) {
Coord c = msg.coord();
synchronized (grids) {
synchronized (req) {
if (req.containsKey(c)) {
Grid g = grids.get(c);
if (g == null) grids.put(c, g = new Grid(c));
g.fill(msg);
req.remove(c);
olseq++;
}
}
}
}
/**
* Notifies this <tt>ResponseCollector</tt> that a STUN response described by the specified
* <tt>StunResponseEvent</tt> has been received.
*
* @param event the <tt>StunResponseEvent</tt> which describes the received STUN response
* @see ResponseCollector#processResponse(StunResponseEvent)
*/
@Override
public void processResponse(StunResponseEvent event) {
TransactionID transactionID = event.getTransactionID();
logger.finest("Received a message: tranid= " + transactionID);
logger.finest("localCand= " + hostCandidate);
/*
* Clean up for the purposes of the workaround which determines the STUN
* Request to which a STUN Response responds.
*/
synchronized (requests) {
requests.remove(transactionID);
}
// At long last, do start handling the received STUN Response.
Response response = event.getResponse();
Request request = event.getRequest();
boolean completedResolvingCandidate = true;
try {
if (response.isSuccessResponse()) {
// Authentication and Message-Integrity Mechanisms
if (request.containsAttribute(Attribute.MESSAGE_INTEGRITY)) {
MessageIntegrityAttribute messageIntegrityAttribute =
(MessageIntegrityAttribute) response.getAttribute(Attribute.MESSAGE_INTEGRITY);
/*
* RFC 5389: If MESSAGE-INTEGRITY was absent, the response
* MUST be discarded, as if it was never received.
*/
if (messageIntegrityAttribute == null) return;
UsernameAttribute usernameAttribute =
(UsernameAttribute) request.getAttribute(Attribute.USERNAME);
/*
* For a request or indication message, the agent MUST
* include the USERNAME and MESSAGE-INTEGRITY attributes in
* the message.
*/
if (usernameAttribute == null) return;
if (!harvester
.getStunStack()
.validateMessageIntegrity(
messageIntegrityAttribute,
LongTermCredential.toString(usernameAttribute.getUsername()),
!request.containsAttribute(Attribute.REALM)
&& !request.containsAttribute(Attribute.NONCE),
event.getRawMessage())) return;
}
processSuccess(response, request, transactionID);
} else {
ErrorCodeAttribute errorCodeAttr =
(ErrorCodeAttribute) response.getAttribute(Attribute.ERROR_CODE);
if ((errorCodeAttr != null) && (errorCodeAttr.getErrorClass() == 4)) {
try {
switch (errorCodeAttr.getErrorNumber()) {
case 1: // 401 Unauthorized
if (processUnauthorized(response, request, transactionID))
completedResolvingCandidate = false;
break;
case 38: // 438 Stale Nonce
if (processStaleNonce(response, request, transactionID))
completedResolvingCandidate = false;
break;
}
} catch (StunException sex) {
completedResolvingCandidate = true;
}
}
if (completedResolvingCandidate && processErrorOrFailure(response, request, transactionID))
completedResolvingCandidate = false;
}
} finally {
if (completedResolvingCandidate) completedResolvingCandidate(request, response);
}
}