/**
*
*
* <pre>
* Alice Proxy Bob Bob(2) HSS
* 1 | INVITE | | | |
* |----------->| | | |
* 2 | | INVITE | | |
* | |--------->| | |
* 3 | | 404 | | |
* | |<---------| | |
* 4 | | ACK | | |
* | |--------->| | |
* 5 | | UDR | | |
* | |--------------------------------->|
* 6 | | | | UDA |
* | |<---------------------------------|
* 7 | | INVITE | | |
* | |--------------------->| |
* 8 | | | 200 | |
* | |<---------------------| |
* 9 | 200 | | | |
* |<-----------| | | |
* 10 | ACK | | | |
* |----------->| | | |
* 11 | | ACK | | |
* | |--------------------->| |
* 12 | BYE | | | |
* |----------->| | | |
* 13 | | BYE | | |
* | |--------------------->| |
* 14 | | | 200 | |
* | |<---------------------| |
* 15 | 200 | | | |
* |<-----------| | | |
* </pre>
*/
@Test
public void testProxyDiameter() throws Throwable {
Endpoint bob = createEndpoint("bob");
UaRunnable callB = new UasScript.NotFound(bob.getUserAgent());
Endpoint bob2 = createEndpoint("bob");
UaRunnable callC = new UasScript.OkBye(bob2.getUserAgent());
callB.start();
callC.start();
SipServletRequest request = _ua.createRequest(SipMethods.INVITE, bob.getUri());
request.setRequestURI(bob.getContact().getURI());
request.addHeader("proxy", bob2.getContact().toString());
Call callA = _ua.createCall(request);
try {
assertThat(callA.waitForResponse(), isSuccess());
callA.createAck().send();
Thread.sleep(200);
callA.createBye().send();
assertThat(callA.waitForResponse(), isSuccess());
callB.assertDone();
callC.assertDone();
} finally {
checkForFailure();
}
}
@Override
public synchronized void forwardTo(final Endpoint endpoint, final Map<String, String> headers)
throws SignalException, IllegalStateException {
URI target = null;
try {
target = _ctx.getSipFactory().createURI(endpoint.getURI().toString());
} catch (final ServletParseException e) {
throw new IllegalArgumentException(e);
}
this.checkState();
_forwarded = true;
final SipServletRequest req =
_ctx.getSipFactory()
.createRequest(
_req.getApplicationSession(), _req.getMethod(), _req.getFrom(), _req.getTo());
req.setRequestURI(target);
SIPHelper.addHeaders(req, headers);
SIPHelper.copyContent(_req, req);
SIPHelper.linkSIPMessage(_req, req);
try {
req.send();
} catch (final IOException e) {
throw new SignalException(e);
}
}
/**
*
*
* <pre>
* Alice Proxy Bob
* 1 | INVITE | |
* |----------->| |
* 2 | | INVITE |
* | |----------->|
* 3 | | 180 |
* | |<-----------|
* 4 | 180 | |
* |<-----------| |
* 5 | | CANCEL |
* | |----------->|
* 6 | 408 | |
* |<-----------| |
* 7 | | 200/CANCEL |
* | |<-----------|
* 8 | | 487/INVITE |
* | |<-----------|
* 9 | | ACK |
* | |----------->|
* 10 | ACK | |
* |----------->| |
* </pre>
*/
@Test
public void testVirtualBranch() throws Exception {
Endpoint bob = createEndpoint("bob");
UaRunnable callB = new UasScript.RingingCanceled(bob.getUserAgent());
callB.start();
SipServletRequest request = _ua.createRequest(SipMethods.INVITE, bob.getUri());
request.setRequestURI(bob.getContact().getURI());
Call callA = _ua.createCall(request);
assertThat(callA.waitForResponse(), hasStatus(SipServletResponse.SC_REQUEST_TIMEOUT));
checkForFailure();
}
/**
* Ensure that the servlet is not invoked if session is invalidated.
*
* <p>See http://jira.cipango.org/browse/CIPANGO-121
*
* <pre>
* Alice Proxy Bob
* 1 | INVITE | |
* |----------->| |
* 2 | | INVITE |
* | |--------->|
* 3 | | 200 |
* | |<---------|
* 4 | 200 | |
* |<-----------| |
* 5 | ACK | |
* |----------->| |
* 6 | | ACK |
* | |--------->|
* 7 | BYE | |
* |----------->| |
* 8 | | BYE |
* | |--------->|
* 9 | | 200 |
* | |<---------|
* 10 | 200 | |
* |<-----------| |
* </pre>
*/
@Test
public void testInvalidateBefore200() throws Exception {
Endpoint bob = createEndpoint("bob");
UaRunnable callB = new UasScript.OkBye(bob.getUserAgent());
callB.start();
SipServletRequest request = _ua.createRequest(SipMethods.INVITE, bob.getUri());
request.setRequestURI(bob.getContact().getURI());
Call callA = _ua.createCall(request);
assertThat(callA.waitForResponse(), isSuccess());
callA.createAck().send();
callA.createBye().send();
SipServletResponse response = callA.waitForResponse();
assertThat(response, isSuccess());
assertThat(response.getHeader("error"), is(nullValue()));
}
/**
* Ensures that - DNS resolution is done using NAPTR and SRV in proxy mode; - retry is done if a
* 503 is received.
*
* <p>To run this test, the DNS server for domain cipango.voip should be configured with
*
* <pre>
* bob IN NAPTR 90 40 "s" "SIP+D2U" "" _sip._udp.bob
* _sip._udp.bob SRV 0 0 5064 local
* _sip._udp.bob SRV 5 0 5063 local
* </pre>
*
* Note:This test is marked as ignored as it requires a specific DNS configuration.
*/
@Ignore
public void dnsCase() throws Exception {
final Endpoint bob = createEndpoint("bob");
bob.getUserAgent()
.setDefaultHandler(
new MessageHandler() {
public void handleRequest(SipServletRequest request)
throws IOException, ServletException {
SipServletResponse response =
bob.getUserAgent().createResponse(request, SipServletResponse.SC_ACCEPTED);
response.addHeader("X-Dns", "ok");
response.send();
}
public void handleResponse(SipServletResponse response)
throws IOException, ServletException {}
});
final Endpoint bob2 = createEndpoint("bob");
bob2.getUserAgent()
.setDefaultHandler(
new MessageHandler() {
public void handleRequest(SipServletRequest request)
throws IOException, ServletException {
SipServletResponse response =
bob.getUserAgent()
.createResponse(request, SipServletResponse.SC_SERVICE_UNAVAILABLE);
response.send();
}
public void handleResponse(SipServletResponse response)
throws IOException, ServletException {}
});
SipServletRequest request = _ua.createRequest(SipMethods.MESSAGE, bob.getUri());
request.setRequestURI(_sipClient.getFactory().createURI("sip:bob.cipango.voip"));
Call call = _ua.createCall(request);
assertThat(call.waitForResponse(), hasStatus(SipServletResponse.SC_ACCEPTED));
checkForFailure();
}
/**
*
*
* <pre>
* Alice Proxy Proxy Bob
* 1 | INVITE | | |
* |------------>| | |
* 2 | |INVITE tel:1234 | |
* | |---------------->| |
* 3 | | | INVITE |
* | | |--------->|
* 4 | | | 603 |
* | | |<---------|
* 5 | | 603 | |
* | |<----------------| |
* 6 | 603 | | |
* |<------------| | |
* 7 | ACK | | |
* |------------>| | |
* 8 | |ACK | |
* | |---------------->| |
* 9 | | | ACK |
* | | |--------->|
* </pre>
*/
@Test
public void testTelUri() throws Exception {
final Endpoint bob = createEndpoint("bob");
bob.getUserAgent()
.setDefaultHandler(
new MessageHandler() {
public void handleRequest(SipServletRequest request)
throws IOException, ServletException {
assertThat(request.getHeader("req-uri"), containsString("tel:1234"));
bob.getUserAgent().createResponse(request, SipServletResponse.SC_DECLINE).send();
}
public void handleResponse(SipServletResponse response)
throws IOException, ServletException {}
});
SipServletRequest request = _ua.createRequest(SipMethods.INVITE, bob.getUri());
request.setRequestURI(bob.getContact().getURI());
Call call = _ua.createCall(request);
assertThat(call.waitForResponse(), hasStatus(SipServletResponse.SC_DECLINE));
}
/**
* @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;
}