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 FromHeader getFromHeader() throws IOException {
if (fromHeader != null) {
return fromHeader;
}
try {
SipURI fromURI =
(SipURI)
addressFactory.createURI("sip:" + proxyCredentials.getUserName() + "@" + registrar);
fromURI.setTransportParam(sipProvider.getListeningPoint().getTransport());
fromURI.setPort(sipProvider.getListeningPoint().getPort());
Address fromAddress = addressFactory.createAddress(fromURI);
fromAddress.setDisplayName(proxyCredentials.getUserDisplay());
fromHeader = headerFactory.createFromHeader(fromAddress, Integer.toString(hashCode()));
} catch (ParseException e) {
throw new IOException(
"A ParseException occurred while creating From Header! " + e.getMessage());
}
return fromHeader;
}
/**
* Populates a specific <tt>Request</tt> instance with the headers common to dialog-creating
* <tt>Request</tt>s and ones sent inside existing dialogs and specific to the general event
* package subscription functionality that this instance and a specific <tt>Subscription</tt>
* represent.
*
* @param req the <tt>Request</tt> instance to be populated with common headers and ones specific
* to the event package of a specific <tt>Subscription</tt>
* @param subscription the <tt>Subscription</tt> which is to be described in the specified
* <tt>Request</tt> i.e. its properties are to be used to populate the specified
* <tt>Request</tt>
* @param expires the subscription duration to be set into the Expires header of the specified
* SUBSCRIBE <tt>Request</tt>
* @throws OperationFailedException if we fail parsing or populating the subscription request.
*/
protected void populateSubscribeRequest(Request req, Subscription subscription, int expires)
throws OperationFailedException {
HeaderFactory headerFactory = protocolProvider.getHeaderFactory();
// Event
EventHeader evHeader;
try {
evHeader = headerFactory.createEventHeader(eventPackage);
String eventId = subscription.getEventId();
if (eventId != null) evHeader.setEventId(eventId);
} catch (ParseException e) {
// these two should never happen.
logger.error("An unexpected error occurred while" + "constructing the EventHeader", e);
throw new OperationFailedException(
"An unexpected error occurred while" + "constructing the EventHeader",
OperationFailedException.INTERNAL_ERROR,
e);
}
req.setHeader(evHeader);
// Accept
AcceptHeader accept;
try {
accept = headerFactory.createAcceptHeader("application", contentSubType);
} catch (ParseException e) {
logger.error("wrong accept header", e);
throw new OperationFailedException(
"An unexpected error occurred while" + "constructing the AcceptHeader",
OperationFailedException.INTERNAL_ERROR,
e);
}
req.setHeader(accept);
// Expires
ExpiresHeader expHeader;
try {
expHeader = headerFactory.createExpiresHeader(expires);
} catch (InvalidArgumentException e) {
logger.error("Invalid expires value: " + expires, e);
throw new OperationFailedException(
"An unexpected error occurred while" + "constructing the ExpiresHeader",
OperationFailedException.INTERNAL_ERROR,
e);
}
req.setHeader(expHeader);
}
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 ContactHeader getRegistrationContactHeader() throws IOException {
if (contactHeader != null) {
return contactHeader;
}
try {
SipURI contactURI =
(SipURI)
addressFactory.createURI(
"sip:" + proxyCredentials.getUserName() + "@" + proxyCredentials.getHost());
contactURI.setTransportParam(sipProvider.getListeningPoint().getTransport());
contactURI.setPort(sipProvider.getListeningPoint().getPort());
Address contactAddress = addressFactory.createAddress(contactURI);
contactAddress.setDisplayName(proxyCredentials.getUserDisplay());
contactHeader = headerFactory.createContactHeader(contactAddress);
return contactHeader;
} catch (ParseException e) {
throw new IOException(
"A ParseException occurred while creating From Header! " + " " + e.getMessage());
}
}
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;
}
/**
* Creates a new SUBSCRIBE request in the form of a <tt>ClientTransaction</tt> with the parameters
* of a specific <tt>Subscription</tt>.
*
* @param subscription the <tt>Subscription</tt> to be described in a SUBSCRIBE request
* @param expires the subscription duration of the SUBSCRIBE request to be created
* @return a new <tt>ClientTransaction</tt> initialized with a new SUBSCRIBE request which matches
* the parameters of the specified <tt>Subscription</tt>
* @throws OperationFailedException if the request could not be generated
*/
private ClientTransaction createSubscription(Subscription subscription, int expires)
throws OperationFailedException {
Address toAddress = subscription.getAddress();
HeaderFactory headerFactory = protocolProvider.getHeaderFactory();
// Call ID
CallIdHeader callIdHeader = protocolProvider.getDefaultJainSipProvider().getNewCallId();
// CSeq
CSeqHeader cSeqHeader;
try {
cSeqHeader = headerFactory.createCSeqHeader(1l, Request.SUBSCRIBE);
} catch (InvalidArgumentException ex) {
// Shouldn't happen
logger.error("An unexpected error occurred while" + "constructing the CSeqHeader", ex);
throw new OperationFailedException(
"An unexpected error occurred while" + "constructing the CSeqHeader",
OperationFailedException.INTERNAL_ERROR,
ex);
} catch (ParseException ex) {
// shouldn't happen
logger.error("An unexpected error occurred while" + "constructing the CSeqHeader", ex);
throw new OperationFailedException(
"An unexpected error occurred while" + "constructing the CSeqHeader",
OperationFailedException.INTERNAL_ERROR,
ex);
}
// FromHeader and ToHeader
String localTag = SipMessageFactory.generateLocalTag();
FromHeader fromHeader;
ToHeader toHeader;
try {
// FromHeader
fromHeader =
headerFactory.createFromHeader(protocolProvider.getOurSipAddress(toAddress), localTag);
// ToHeader
toHeader = headerFactory.createToHeader(toAddress, null);
} catch (ParseException ex) {
// these two should never happen.
logger.error(
"An unexpected error occurred while" + "constructing the FromHeader or ToHeader", ex);
throw new OperationFailedException(
"An unexpected error occurred while" + "constructing the FromHeader or ToHeader",
OperationFailedException.INTERNAL_ERROR,
ex);
}
// ViaHeaders
ArrayList<ViaHeader> viaHeaders = protocolProvider.getLocalViaHeaders(toAddress);
// MaxForwards
MaxForwardsHeader maxForwards = protocolProvider.getMaxForwardsHeader();
Request req;
try {
req =
protocolProvider
.getMessageFactory()
.createRequest(
toHeader.getAddress().getURI(),
Request.SUBSCRIBE,
callIdHeader,
cSeqHeader,
fromHeader,
toHeader,
viaHeaders,
maxForwards);
} catch (ParseException ex) {
// shouldn't happen
logger.error("Failed to create message Request!", ex);
throw new OperationFailedException(
"Failed to create message Request!", OperationFailedException.INTERNAL_ERROR, ex);
}
populateSubscribeRequest(req, subscription, expires);
// Transaction
ClientTransaction subscribeTransaction;
try {
subscribeTransaction =
protocolProvider.getDefaultJainSipProvider().getNewClientTransaction(req);
} catch (TransactionUnavailableException ex) {
logger.error(
"Failed to create subscribe transaction.\n"
+ "This is most probably a network connection error.",
ex);
throw new OperationFailedException(
"Failed to create the subscription transaction",
OperationFailedException.NETWORK_FAILURE);
}
return subscribeTransaction;
}