public void onEvent(PlayerEvent event) {
Player player = event.getSource();
MediaGroup mg = player.getContainer();
if (!isBye) {
if (event.isSuccessful() && (PlayerEvent.PLAY_COMPLETED == event.getEventType())) {
MediaSession mediaSession = event.getSource().getMediaSession();
SipSession sipSession = (SipSession) mediaSession.getAttribute("SIP_SESSION");
sipSession.setAttribute("MEDIA_GROUP", mg);
SipApplicationSession sipAppSession = sipSession.getApplicationSession();
try {
Recorder recoredr = mg.getRecorder();
logger.info("recording the user at " + RECORDER);
URI prompt = URI.create(RECORDER);
recoredr.record(prompt, null, null);
TimerService timer = (TimerService) getServletContext().getAttribute(TIMER_SERVICE);
timer.createTimer(sipAppSession, RECORDING_DELAY, false, sipSession.getId());
} catch (MsControlException e) {
logger.error("An unexpected error happened ", e);
}
} else {
logger.error("Player didn't complete successfully ");
}
}
}
@Override
public synchronized void forwardTo(final Call call, final Map<String, String> headers)
throws SignalException {
if (!(call instanceof SIPCall)) {
throw new UnsupportedOperationException("Cannot forward to non-SIPCall.");
}
if (_req.isInitial()) {
throw new IllegalArgumentException("Cannot forward initial SIP request.");
}
final SIPCallImpl scall = (SIPCallImpl) call;
if (!scall.isAnswered()) {
throw new IllegalStateException("Cannot forward to no-answered call.");
}
this.checkState();
_forwarded = true;
final SipSession session = scall.getSipSession();
final SipServletRequest req = session.createRequest(_req.getMethod());
SIPHelper.addHeaders(req, headers);
SIPHelper.copyContent(_req, req);
SIPHelper.linkSIPMessage(_req, req);
try {
req.send();
} catch (final IOException e) {
throw new SignalException(e);
}
}
public void timeout(ServletTimer timer, SipSession sipSession) {
serverEntryLog();
String reasonPhrase;
if (sipSession.getAttribute("cancelled") != null) {
reasonPhrase = "got cancelled";
} else {
logger.error("***ERROR: didn't receive notification of CANCEL***");
reasonPhrase = "didn't get cancelled";
}
try {
SipServletRequest invite = (SipServletRequest) sipSession.getAttribute("invite");
SipServletResponse resp = invite.createResponse(500, reasonPhrase);
try {
resp.send();
} catch (IOException ex) {
logger.error("***failed to send subsequent request***", ex);
}
logger.error(
"***ERROR: sending final response after CANCEL didn't "
+ "cause IllegalStateException***");
} catch (IllegalStateException ex) {
logger.info(
"===SUCCESS: sending final response after CANCEL " + "cause IllegalStateException===");
}
}
public static SipServletRequest getLinkedRequest(SipServletMessage message) {
SipSession linkedB2BUASession = getLinkedSession(message);
if (linkedB2BUASession != null) {
SipServletRequest linkedRequest =
(SipServletRequest) linkedB2BUASession.getAttribute(B2BUA_LAST_REQUEST);
return linkedRequest;
}
return null;
}
public SipServletRequest createRequest(String method) {
if (_session == null) throw new IllegalStateException("Session not created");
SipServletRequest request = _session.createRequest(method);
if (_session.getState() == State.INITIAL && _outboundProxy != null)
request.pushRoute(_outboundProxy);
return request;
}
public static SipServletResponse getLinkedResponse(SipServletMessage message) {
SipSession linkedB2BUASession = getLinkedSession(message);
// if this is an ACK that belongs to a B2BUA session, then we proxy it to the other client
if (linkedB2BUASession != null) {
SipServletResponse response =
(SipServletResponse) linkedB2BUASession.getAttribute(B2BUA_LAST_RESPONSE);
return response;
}
return null;
}
@Override
protected void preprocessState(SipSession session, State state) {
BigInteger version = (BigInteger) session.getAttribute(Constants.VERSION_ATTRIBUTE);
if (version == null) version = BigInteger.ZERO;
else version = version.add(BigInteger.ONE);
Watcherinfo watcherinfo = ((WatcherinfoDocument) state.getContent()).getWatcherinfo();
watcherinfo.setVersion(version);
session.setAttribute(Constants.VERSION_ATTRIBUTE, version);
}
private void initialize(SipServletRequest request) throws ServletException {
if (_session != null) throw new ServletException("Dialog already started");
_sessionHandler = new SessionHandler();
_session = request.getSession();
_session.setAttribute(MessageHandler.class.getName(), _sessionHandler);
_session.setAttribute(INITIAL_REQUEST_ATTRIBUTE, request);
_sessionHandler.setTimeout(_timeout);
_sessionHandler.setCredentials(_credentials);
}
protected void doInvite(SipServletRequest req) throws ServletException, IOException {
serverEntryLog();
logger.debug("---doInvite---");
SipServletResponse resp = req.createResponse(180);
resp.send();
// just set timer - we expect a CANCEL to arrive...
SipSession sipSession = req.getSession();
sipSession.setAttribute("invite", req);
timerService.createTimer(
req.getApplicationSession(), 5000, true, UasCancelServlet.class.getName());
}
@Override
protected void doBye(SipServletRequest req) {
SipSession session = req.getSession(false);
SipSession linkedSession = (SipSession) session.getAttribute(Constant.LINKED_SESSION);
logger.info("SIP BYE From : " + req.getFrom().toString());
// caller session
if (null != session.getAttribute(Constant.INVITE_USER_REQUEST)) {
doBye(session, req);
}
// callee session
else {
logger.info("callee do bye!");
doBye(linkedSession, req);
}
}
@Override
protected void doBye(SipServletRequest request) throws ServletException, IOException {
logger.info("Got bye");
SipSession session = request.getSession();
SipSession linkedSession = (SipSession) session.getAttribute("LinkedSession");
if (linkedSession != null) {
SipServletRequest bye = linkedSession.createRequest("BYE");
logger.info("Sending bye to " + linkedSession.getRemoteParty());
bye.send();
}
CallStatusContainer calls =
(CallStatusContainer) getServletContext().getAttribute("activeCalls");
calls.removeCall(request.getFrom().getURI().toString(), request.getTo().getURI().toString());
calls.removeCall(request.getTo().getURI().toString(), request.getFrom().getURI().toString());
SipServletResponse ok = request.createResponse(SipServletResponse.SC_OK);
ok.send();
}
@Observer("connectionOpen")
public void doConnectionOpen(MsConnectionEvent event) throws IOException {
conferenceEndpointName = event.getConnection().getEndpoint().getLocalName();
SipServletRequest request = (SipServletRequest) sipSession.getAttribute("inviteRequest");
SipServletResponse response = request.createResponse(200);
response.setContent(event.getConnection().getLocalDescriptor(), "application/sdp");
response.send();
}
@Override
protected void doAck(SipServletRequest req) throws ServletException, IOException {
SipSession sipSession = req.getSession();
MediaSession ms = (MediaSession) sipSession.getAttribute("MEDIA_SESSION");
try {
MediaGroup mg = ms.createMediaGroup(MediaGroup.PLAYER_RECORDER_SIGNALDETECTOR);
mg.addListener(new MyJoinEventListener());
NetworkConnection nc = (NetworkConnection) sipSession.getAttribute("NETWORK_CONNECTION");
mg.joinInitiate(Direction.DUPLEX, nc, this);
} catch (MsControlException e) {
logger.error(e);
// Clean up media session
terminate(sipSession, ms);
}
}
@Observer("INVITE")
@CreateProcess(definition = "demo")
public void doInvite(SipServletRequest request) throws Exception {
String sdp = new String((byte[]) request.getContent());
request.createResponse(180).send();
sipSession.setAttribute("inviteRequest", request);
if (conferenceEndpointName == null) conferenceEndpointName = "media/trunk/Conference/$";
mediaController.createConnection(conferenceEndpointName).modify("$", sdp);
}
public void onEvent(PlayerEvent event) {
try {
logger.info("ENDING CALL ");
Player player = event.getSource();
MediaGroup mg = player.getContainer();
if (event.isSuccessful() && (PlayerEvent.PLAY_COMPLETED == event.getEventType())) {
MediaSession session = (MediaSession) sipSession.getAttribute("mediaSession");
session.release();
Thread.sleep(1500);
SipServletRequest byeRequest = sipSession.createRequest("BYE");
byeRequest.send();
}
} catch (Exception e) {
logger.error("Error", e);
}
}
public void timeout(ServletTimer servletTimer) {
String sessionId = (String) servletTimer.getInfo();
logger.info("Timer fired on sip session " + sessionId);
SipSession sipSession = servletTimer.getApplicationSession().getSipSession(sessionId);
if (sipSession != null) {
MediaGroup mediaGroup = (MediaGroup) sipSession.getAttribute("MEDIA_GROUP");
if (mediaGroup != null) {
logger.info("Timer fired, stopping the recording");
try {
mediaGroup.getRecorder().stop();
} catch (MsControlException e) {
logger.info("recording couldn't be stopped", e);
}
}
} else {
logger.info("the session has not been found, it may have been already invalidated");
}
}
private void doBye(SipSession session, SipServletRequest request) {
// send bye to its linked user session and notify
SipSession reqSession = request.getSession(false);
if (null == reqSession.getAttribute(Constant.INVITE_USER_REQUEST)) {
logger.info("callee ok");
SipServletRequest bye = session.createRequest(Constant.BYE);
try {
bye.send();
} catch (IOException e) {
e.printStackTrace();
}
}
// send 200 OK to the session
SipServletResponse resp = request.createResponse(SipServletResponse.SC_OK);
try {
resp.send();
} catch (IOException e) {
e.printStackTrace();
}
}
/** Update the dialog with the response. Could be needed if there has been multiple dialogs. */
public void updateDialog(SipServletResponse response) {
SipSession session = response.getSession();
if (session.equals(_session)) return;
if (!session.getCallId().equals(_session.getCallId()))
throw new IllegalArgumentException(
"Session " + session + " is not a derived session from " + _session);
String localTag = response.getFrom().getParameter("tag");
if (!localTag.equals(_session.getLocalParty().getParameter("tag"))
&& !localTag.equals(_session.getRemoteParty().getParameter("tag")))
throw new IllegalArgumentException(
"Session " + session + " is not a derived session from " + _session);
_session = session;
}
public void doCancel(SipServletRequest req) throws IOException {
serverEntryLog();
logger.debug("---doCancel---");
SipSession sipSession = req.getSession();
sipSession.setAttribute("cancelled", Boolean.TRUE);
}
@Override
protected void doSuccessResponse(SipServletResponse resp) throws ServletException, IOException {
logger.info("Got OK");
SipSession session = resp.getSession();
if (resp.getStatus() == SipServletResponse.SC_OK) {
Boolean inviteSent = (Boolean) session.getAttribute("InviteSent");
if (inviteSent != null && inviteSent.booleanValue()) {
return;
}
Address secondPartyAddress = (Address) resp.getSession().getAttribute("SecondPartyAddress");
if (secondPartyAddress != null) {
SipServletRequest invite =
sipFactory.createRequest(
resp.getApplicationSession(),
"INVITE",
session.getRemoteParty(),
secondPartyAddress);
logger.info("Found second party -- sending INVITE to " + secondPartyAddress);
String contentType = resp.getContentType();
if (contentType.trim().equals("application/sdp")) {
invite.setContent(resp.getContent(), "application/sdp");
}
session.setAttribute("LinkedSession", invite.getSession());
invite.getSession().setAttribute("LinkedSession", session);
SipServletRequest ack = resp.createAck();
invite.getSession().setAttribute("FirstPartyAck", ack);
invite.getSession().setAttribute("FirstPartyContent", resp.getContent());
Call call = (Call) session.getAttribute("call");
// The call links the two sessions, add the new session to the call
call.addSession(invite.getSession());
invite.getSession().setAttribute("call", call);
invite.send();
session.setAttribute("InviteSent", Boolean.TRUE);
} else {
String cSeqValue = resp.getHeader("CSeq");
if (cSeqValue.indexOf("INVITE") != -1) {
logger.info("Got OK from second party -- sending ACK");
SipServletRequest secondPartyAck = resp.createAck();
SipServletRequest firstPartyAck =
(SipServletRequest) resp.getSession().getAttribute("FirstPartyAck");
// if (resp.getContentType() != null &&
// resp.getContentType().equals("application/sdp")) {
firstPartyAck.setContent(resp.getContent(), "application/sdp");
secondPartyAck.setContent(
resp.getSession().getAttribute("FirstPartyContent"), "application/sdp");
// }
firstPartyAck.send();
secondPartyAck.send();
}
}
}
}
/**
* @param request
* @param client
* @param toClient
* @throws IOException
*/
public static boolean redirectToB2BUA(
final SipServletRequest request,
final Client client,
Client toClient,
DaoManager storage,
SipFactory sipFactory)
throws IOException {
request.getSession().setAttribute("lastRequest", request);
if (logger.isInfoEnabled()) {
logger.info("B2BUA (p2p proxy): Got request:\n" + request.getMethod());
logger.info(
String.format(
"B2BUA: Proxying a session between %s and %s", client.getUri(), toClient.getUri()));
}
if (daoManager == null) {
daoManager = storage;
}
String user = ((SipURI) request.getTo().getURI()).getUser();
final RegistrationsDao registrations = daoManager.getRegistrationsDao();
final Registration registration = registrations.getRegistration(user);
if (registration != null) {
final String location = registration.getLocation();
SipURI to;
SipURI from;
try {
to = (SipURI) sipFactory.createURI(location);
from =
(SipURI)
sipFactory.createURI(
(registrations.getRegistration(client.getLogin())).getLocation());
final SipSession incomingSession = request.getSession();
// create and send the outgoing invite and do the session linking
incomingSession.setAttribute(B2BUA_LAST_REQUEST, request);
SipServletRequest outRequest =
sipFactory.createRequest(
request.getApplicationSession(),
request.getMethod(),
request.getFrom().getURI(),
request.getTo().getURI());
outRequest.setRequestURI(to);
if (request.getContent() != null) {
final byte[] sdp = request.getRawContent();
String offer = null;
if (request.getContentType().equalsIgnoreCase("application/sdp")) {
// Issue 308: https://telestax.atlassian.net/browse/RESTCOMM-308
String externalIp = request.getInitialRemoteAddr();
// Issue 306: https://telestax.atlassian.net/browse/RESTCOMM-306
final String initialIpBeforeLB = request.getHeader("X-Sip-Balancer-InitialRemoteAddr");
try {
if (initialIpBeforeLB != null && !initialIpBeforeLB.isEmpty()) {
offer = patch(sdp, initialIpBeforeLB);
} else {
offer = patch(sdp, externalIp);
}
} catch (SdpException e) {
logger.error("Unexpected exception while patching sdp ", e);
}
}
if (offer != null) {
outRequest.setContent(offer, request.getContentType());
} else {
outRequest.setContent(sdp, request.getContentType());
}
}
final SipSession outgoingSession = outRequest.getSession();
if (request.isInitial()) {
incomingSession.setAttribute(B2BUA_LINKED_SESSION, outgoingSession);
outgoingSession.setAttribute(B2BUA_LINKED_SESSION, incomingSession);
}
outgoingSession.setAttribute(B2BUA_LAST_REQUEST, outRequest);
request.createResponse(100).send();
// Issue #307: https://telestax.atlassian.net/browse/RESTCOMM-307
request.getSession().setAttribute("toInetUri", to);
outRequest.send();
outRequest.getSession().setAttribute("fromInetUri", from);
final CallDetailRecord.Builder builder = CallDetailRecord.builder();
builder.setSid(Sid.generate(Sid.Type.CALL));
builder.setDateCreated(DateTime.now());
builder.setAccountSid(client.getAccountSid());
builder.setTo(toClient.getFriendlyName());
builder.setCallerName(client.getFriendlyName());
builder.setFrom(client.getFriendlyName());
// builder.setForwardedFrom(callInfo.forwardedFrom());
// builder.setPhoneNumberSid(phoneId);
builder.setStatus(CallStateChanged.State.QUEUED.name());
builder.setDirection("Client-To-Client");
builder.setApiVersion(client.getApiVersion());
builder.setPrice(new BigDecimal("0.00"));
// TODO implement currency property to be read from Configuration
builder.setPriceUnit(Currency.getInstance("USD"));
final StringBuilder buffer = new StringBuilder();
buffer.append("/").append(client.getApiVersion()).append("/Accounts/");
buffer.append(client.getAccountSid().toString()).append("/Calls/");
buffer.append(client.getSid().toString());
final URI uri = URI.create(buffer.toString());
builder.setUri(uri);
CallDetailRecordsDao records = daoManager.getCallDetailRecordsDao();
CallDetailRecord callRecord = builder.build();
records.addCallDetailRecord(callRecord);
incomingSession.setAttribute(CDR_SID, callRecord.getSid());
outgoingSession.setAttribute(CDR_SID, callRecord.getSid());
return true; // successfully proxied the SIP request between two registered clients
} catch (ServletParseException badUriEx) {
if (logger.isInfoEnabled()) {
logger.info(
String.format("B2BUA: Error parsing Client Contact URI: %s", location), badUriEx);
}
}
}
return false;
}