private ArrayList getLocalViaHeaders() throws IOException {
/*
* We can't keep a cached copy because the callers
* of this method change the viaHeaders. In particular
* a branch may be added which causes INVITES to fail.
*/
if (viaHeaders != null) {
return viaHeaders;
}
ListeningPoint lp = sipProvider.getListeningPoint();
viaHeaders = new ArrayList();
try {
String addr = lp.getIPAddress();
ViaHeader viaHeader =
headerFactory.createViaHeader(addr, lp.getPort(), lp.getTransport(), null);
viaHeader.setRPort();
viaHeaders.add(viaHeader);
return viaHeaders;
} catch (ParseException e) {
throw new IOException(
"A ParseException occurred while creating Via Headers! " + e.getMessage());
} catch (InvalidArgumentException e) {
throw new IOException(
"Unable to create a via header for port " + lp.getPort() + " " + e.getMessage());
}
}
private MaxForwardsHeader getMaxForwardsHeader() throws IOException {
if (maxForwardsHeader != null) {
return maxForwardsHeader;
}
try {
maxForwardsHeader = headerFactory.createMaxForwardsHeader(MAX_FORWARDS);
return maxForwardsHeader;
} catch (InvalidArgumentException e) {
throw new IOException(
"A problem occurred while creating MaxForwardsHeader " + e.getMessage());
}
}
private void sendInviteOK() {
try {
if (inviteTid.getState() != TransactionState.COMPLETED) {
System.out.println("shootme: Dialog state before 486: " + inviteTid.getDialog().getState());
inviteTid.sendResponse(okResponse);
System.out.println("shootme: Dialog state after 486: " + inviteTid.getDialog().getState());
}
} catch (SipException ex) {
ex.printStackTrace();
} catch (InvalidArgumentException ex) {
ex.printStackTrace();
}
}
public void unregister() throws IOException {
if (!isRegistered) {
return;
}
cancelPendingRegistrations();
isRegistered = false;
if (this.registerRequest == null) {
Log.info("Couldn't find the initial register request");
throw new IOException("Couldn't find the initial register request");
}
Request unregisterRequest = (Request) registerRequest.clone();
try {
unregisterRequest.getExpires().setExpires(0);
CSeqHeader cSeqHeader = (CSeqHeader) unregisterRequest.getHeader(CSeqHeader.NAME);
// [issue 1] - increment registration cseq number
// reported by - Roberto Tealdi <*****@*****.**>
cSeqHeader.setSequenceNumber(cSeqHeader.getSequenceNumber() + 1);
} catch (InvalidArgumentException e) {
Log.info("Unable to set Expires Header " + e.getMessage());
return;
}
ClientTransaction unregisterTransaction = null;
try {
unregisterTransaction = sipProvider.getNewClientTransaction(unregisterRequest);
} catch (TransactionUnavailableException e) {
throw new IOException("Unable to create a unregister transaction " + e.getMessage());
}
try {
unregisterTransaction.sendRequest();
} catch (SipException e) {
Log.info("Faied to send unregister request " + e.getMessage());
return;
}
}
private void register() throws IOException {
Log.info("Registering with " + registrar);
FromHeader fromHeader = getFromHeader();
Address fromAddress = fromHeader.getAddress();
// Request URI
SipURI requestURI = null;
try {
requestURI = addressFactory.createSipURI(null, registrar);
} catch (ParseException e) {
throw new IOException("Bad registrar address:" + registrar + " " + e.getMessage());
}
// requestURI.setPort(registrarPort);
try {
requestURI.setTransportParam(sipProvider.getListeningPoint().getTransport());
} catch (ParseException e) {
throw new IOException(
sipProvider.getListeningPoint().getTransport()
+ " is not a valid transport! "
+ e.getMessage());
}
CallIdHeader callIdHeader = sipProvider.getNewCallId();
CSeqHeader cSeqHeader = null;
try {
cSeqHeader = headerFactory.createCSeqHeader(1, Request.REGISTER);
} catch (ParseException e) {
// Should never happen
throw new IOException("Corrupt Sip Stack " + e.getMessage());
} catch (InvalidArgumentException e) {
// Should never happen
throw new IOException("The application is corrupt ");
}
ToHeader toHeader = null;
try {
String proxyWorkAround = System.getProperty("com.sun.mc.softphone.REGISTRAR_WORKAROUND");
if (proxyWorkAround != null && proxyWorkAround.toUpperCase().equals("TRUE")) {
SipURI toURI = (SipURI) (requestURI.clone());
toURI.setUser(System.getProperty("user.name"));
toHeader = headerFactory.createToHeader(addressFactory.createAddress(toURI), null);
} else {
toHeader = headerFactory.createToHeader(fromAddress, null);
}
} catch (ParseException e) {
throw new IOException(
"Could not create a To header for address:"
+ fromHeader.getAddress()
+ " "
+ e.getMessage());
}
ArrayList viaHeaders = getLocalViaHeaders();
MaxForwardsHeader maxForwardsHeader = getMaxForwardsHeader();
Request request = null;
try {
request =
messageFactory.createRequest(
requestURI,
Request.REGISTER,
callIdHeader,
cSeqHeader,
fromHeader,
toHeader,
viaHeaders,
maxForwardsHeader);
} catch (ParseException e) {
throw new IOException("Could not create the register request! " + e.getMessage());
}
ExpiresHeader expHeader = null;
for (int retry = 0; retry < 2; retry++) {
try {
expHeader = headerFactory.createExpiresHeader(expires);
} catch (InvalidArgumentException e) {
if (retry == 0) {
continue;
}
throw new IOException(
"Invalid registrations expiration parameter - " + expires + " " + e.getMessage());
}
}
request.addHeader(expHeader);
ContactHeader contactHeader = getRegistrationContactHeader();
request.addHeader(contactHeader);
try {
SipURI routeURI =
(SipURI) addressFactory.createURI("sip:" + proxyCredentials.getProxy() + ";lr");
RouteHeader routeHeader =
headerFactory.createRouteHeader(addressFactory.createAddress(routeURI));
request.addHeader(routeHeader);
} catch (Exception e) {
Log.error("Creating registration route error ", e);
}
ClientTransaction regTrans = null;
try {
regTrans = sipProvider.getNewClientTransaction(request);
} catch (TransactionUnavailableException e) {
throw new IOException(
"Could not create a register transaction!\n"
+ "Check that the Registrar address is correct! "
+ e.getMessage());
}
try {
sipCallId = callIdHeader.getCallId();
sipServerCallback.addSipListener(sipCallId, this);
registerRequest = request;
regTrans.sendRequest();
Log.debug("Sent register request " + registerRequest);
if (expires > 0) {
scheduleReRegistration();
}
} catch (Exception e) {
throw new IOException("Could not send out the register request! " + e.getMessage());
}
this.registerRequest = request;
}
/**
* Process a request from a distant contact
*
* @param requestEvent the <tt>RequestEvent</tt> containing the newly received request.
* @return <tt>true</tt> if the specified event has been handled by this processor and shouldn't
* be offered to other processors registered for the same method; <tt>false</tt>, otherwise
*/
@Override
public boolean processRequest(RequestEvent requestEvent) {
synchronized (messageProcessors) {
for (SipMessageProcessor listener : messageProcessors)
if (!listener.processMessage(requestEvent)) return true;
}
// get the content
String content = null;
Request req = requestEvent.getRequest();
try {
content = new String(req.getRawContent(), getCharset(req));
} catch (UnsupportedEncodingException ex) {
if (logger.isDebugEnabled()) logger.debug("failed to convert the message charset");
content = new String(requestEvent.getRequest().getRawContent());
}
// who sent this request ?
FromHeader fromHeader = (FromHeader) requestEvent.getRequest().getHeader(FromHeader.NAME);
if (fromHeader == null) {
logger.error("received a request without a from header");
return false;
}
Contact from =
opSetPersPresence.resolveContactID(fromHeader.getAddress().getURI().toString());
ContentTypeHeader ctheader = (ContentTypeHeader) req.getHeader(ContentTypeHeader.NAME);
String ctype = null;
String cencoding = null;
if (ctheader == null) {
ctype = DEFAULT_MIME_TYPE;
} else {
ctype = ctheader.getContentType() + "/" + ctheader.getContentSubType();
cencoding = ctheader.getParameter("charset");
}
if (cencoding == null) cencoding = DEFAULT_MIME_ENCODING;
Message newMessage = createMessage(content, ctype, cencoding, null);
if (from == null) {
if (logger.isDebugEnabled())
logger.debug(
"received a message from an unknown contact: "
+ fromHeader.getAddress().getURI().toString());
// create the volatile contact
from = opSetPersPresence.createVolatileContact(fromHeader.getAddress().getURI().toString());
}
// answer ok
try {
Response ok =
sipProvider.getMessageFactory().createResponse(Response.OK, requestEvent.getRequest());
SipStackSharing.getOrCreateServerTransaction(requestEvent).sendResponse(ok);
} catch (ParseException exc) {
logger.error("failed to build the response", exc);
} catch (SipException exc) {
logger.error("failed to send the response : " + exc.getMessage(), exc);
} catch (InvalidArgumentException exc) {
if (logger.isDebugEnabled())
logger.debug("Invalid argument for createResponse : " + exc.getMessage(), exc);
}
// fire an event
MessageReceivedEvent msgReceivedEvt =
new MessageReceivedEvent(newMessage, from, System.currentTimeMillis());
fireMessageEvent(msgReceivedEvt);
return true;
}
/**
* Attach JAIN-SIP <tt>SipProvider</tt> and <tt>ListeningPoint</tt> to the stack either for clear
* communications or TLS. Clear UDP and TCP <tt>ListeningPoint</tt>s are not handled separately as
* the former is a fallback for the latter (depending on the size of the data transmitted). Both
* <tt>ListeningPoint</tt>s must be bound to the same address and port in order for the related
* <tt>SipProvider</tt> to be created. If a UDP or TCP <tt>ListeningPoint</tt> cannot bind, retry
* for both on another port.
*
* @param preferredPort which port to try first to bind.
* @param retries how many times should we try to find a free port to bind
* @param secure whether to create the TLS SipProvider. or the clear UDP/TCP one.
* @throws TransportNotSupportedException in case we try to create a provider for a transport not
* currently supported by jain-sip
* @throws InvalidArgumentException if we try binding to an illegal port (which we won't)
* @throws ObjectInUseException if another <tt>SipProvider</tt> is already associated with this
* <tt>ListeningPoint</tt>.
* @throws TransportAlreadySupportedException if there is already a ListeningPoint associated to
* this <tt>SipProvider</tt> with the same transport of the <tt>ListeningPoint</tt>.
* @throws TooManyListenersException if we try to add a new <tt>SipListener</tt> with a
* <tt>SipProvider</tt> when one was already registered.
*/
private void createProvider(int preferredPort, int retries, boolean secure)
throws TransportNotSupportedException, InvalidArgumentException, ObjectInUseException,
TransportAlreadySupportedException, TooManyListenersException {
String context = (secure ? "TLS: " : "clear UDP/TCP: ");
if (retries < 0) {
// very unlikely to happen with the default 50 retries
logger.error(context + "couldn't find free ports to listen on.");
return;
}
ListeningPoint tlsLP = null;
ListeningPoint udpLP = null;
ListeningPoint tcpLP = null;
try {
if (secure) {
tlsLP =
this.stack.createListeningPoint(
NetworkUtils.IN_ADDR_ANY, preferredPort, ListeningPoint.TLS);
if (logger.isTraceEnabled()) logger.trace("TLS secure ListeningPoint has been created.");
this.secureJainSipProvider = this.stack.createSipProvider(tlsLP);
this.secureJainSipProvider.addSipListener(this);
} else {
udpLP =
this.stack.createListeningPoint(
NetworkUtils.IN_ADDR_ANY, preferredPort, ListeningPoint.UDP);
tcpLP =
this.stack.createListeningPoint(
NetworkUtils.IN_ADDR_ANY, preferredPort, ListeningPoint.TCP);
if (logger.isTraceEnabled())
logger.trace("UDP and TCP clear ListeningPoints have " + "been created.");
this.clearJainSipProvider = this.stack.createSipProvider(udpLP);
this.clearJainSipProvider.addListeningPoint(tcpLP);
this.clearJainSipProvider.addSipListener(this);
}
if (logger.isTraceEnabled()) logger.trace(context + "SipProvider has been created.");
} catch (InvalidArgumentException ex) {
// makes sure we didn't leave an open listener
// as both UDP and TCP listener have to bind to the same port
if (tlsLP != null) this.stack.deleteListeningPoint(tlsLP);
if (udpLP != null) this.stack.deleteListeningPoint(udpLP);
if (tcpLP != null) this.stack.deleteListeningPoint(tcpLP);
// FIXME: "Address already in use" is not working
// as ex.getMessage() displays in the locale language in SC
// (getMessage() is always supposed to be English though)
// this should be a temporary workaround
// if (ex.getMessage().indexOf("Address already in use") != -1)
// another software is probably using the port
if (ex.getCause() instanceof java.io.IOException) {
if (logger.isDebugEnabled())
logger.debug("Port " + preferredPort + " seems in use for either TCP or UDP.");
// tries again on a new random port
int currentlyTriedPort = NetworkUtils.getRandomPortNumber();
if (logger.isDebugEnabled()) logger.debug("Retrying bind on port " + currentlyTriedPort);
this.createProvider(currentlyTriedPort, retries - 1, secure);
} else throw ex;
}
}
