/**
* @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;
}
/**
* @param response
* @throws IOException
*/
public static void forwardResponse(final SipServletResponse response) throws IOException {
if (logger.isInfoEnabled()) {
logger.info(String.format("B2BUA: Got response: \n %s", response));
}
CallDetailRecordsDao records = daoManager.getCallDetailRecordsDao();
// container handles CANCEL related responses no need to forward them
if (response.getStatus() == 487
|| (response.getStatus() == 200 && response.getMethod().equalsIgnoreCase("CANCEL"))) {
if (logger.isDebugEnabled()) {
logger.debug("response to CANCEL not forwarding");
}
// Update CallDetailRecord
SipServletRequest request =
(SipServletRequest) getLinkedSession(response).getAttribute(B2BUA_LAST_REQUEST);
CallDetailRecord callRecord =
records.getCallDetailRecord((Sid) request.getSession().getAttribute(CDR_SID));
if (callRecord != null) {
logger.info("CDR found! Updating");
callRecord = callRecord.setStatus(CallStateChanged.State.CANCELED.name());
final DateTime now = DateTime.now();
callRecord = callRecord.setEndTime(now);
final int seconds =
(int) (DateTime.now().getMillis() - callRecord.getStartTime().getMillis()) / 1000;
callRecord = callRecord.setDuration(seconds);
records.updateCallDetailRecord(callRecord);
}
return;
}
// forward the response
response.getSession().setAttribute(B2BUA_LAST_RESPONSE, response);
SipServletRequest request =
(SipServletRequest) getLinkedSession(response).getAttribute(B2BUA_LAST_REQUEST);
SipServletResponse resp = request.createResponse(response.getStatus());
CallDetailRecord callRecord =
records.getCallDetailRecord((Sid) request.getSession().getAttribute(CDR_SID));
if (response.getContent() != null) {
final byte[] sdp = response.getRawContent();
String offer = null;
if (response.getContentType().equalsIgnoreCase("application/sdp")) {
// Issue 306: https://telestax.atlassian.net/browse/RESTCOMM-306
Registration registration =
daoManager.getRegistrationsDao().getRegistration(callRecord.getTo());
final String externalIp = registration.getLocation().split(":")[1].split("@")[1];
try {
logger.debug("Got original address from Registration :" + externalIp);
offer = patch(sdp, externalIp);
} catch (SdpException e) {
logger.error("Unexpected exception while patching sdp ", e);
}
if (offer != null) {
resp.setContent(offer, response.getContentType());
} else {
resp.setContent(sdp, response.getContentType());
}
}
}
resp.send();
// CallDetailRecord callRecord = records.getCallDetailRecord((Sid)
// request.getSession().getAttribute(CDR_SID));
if (callRecord != null) {
logger.info("CDR found! Updating");
if (!request.getMethod().equalsIgnoreCase("BYE")) {
if (response.getStatus() == 100 || response.getStatus() == 180) {
callRecord = callRecord.setStatus(CallStateChanged.State.RINGING.name());
} else if (response.getStatus() == 200 || response.getStatus() == 202) {
callRecord = callRecord.setStatus(CallStateChanged.State.IN_PROGRESS.name());
callRecord = callRecord.setAnsweredBy(((SipURI) response.getTo().getURI()).getUser());
final DateTime now = DateTime.now();
callRecord = callRecord.setStartTime(now);
} else if (response.getStatus() == 486 || response.getStatus() == 600) {
callRecord = callRecord.setStatus(CallStateChanged.State.BUSY.name());
} else if (response.getStatus() > 400) {
callRecord = callRecord.setStatus(CallStateChanged.State.FAILED.name());
}
} else {
callRecord = callRecord.setStatus(CallStateChanged.State.COMPLETED.name());
final DateTime now = DateTime.now();
callRecord = callRecord.setEndTime(now);
final int seconds =
(int) ((DateTime.now().getMillis() - callRecord.getStartTime().getMillis()) / 1000);
callRecord = callRecord.setDuration(seconds);
}
records.updateCallDetailRecord(callRecord);
}
}
