package examples.reinvite;
import gov.nist.javax.sip.address.SipUri;
import javax.sip.*;
import javax.sip.address.*;
import javax.sip.header.*;
import javax.sip.message.*;
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.FileAppender;
import org.apache.log4j.Logger;
import org.apache.log4j.SimpleLayout;
import java.util.*;
import junit.framework.TestCase;
/**
* This class is a UAC template. Shootist is the guy that shoots and shootme is
* the guy that gets shot.
*
*
* @author M. Ranganathan
*/
public class Shootist implements SipListener {
private boolean reInviteFlag;
private SipProvider provider;
private int reInviteCount;
private ContactHeader contactHeader;
private ListeningPoint listeningPoint;
private int counter;
private static String PEER_ADDRESS = Shootme.myAddress;
private static int PEER_PORT = Shootme.myPort;
private static String peerHostPort = PEER_ADDRESS + ":" + PEER_PORT;
// To run on two machines change these to suit.
public static final String myAddress = "127.0.0.1";
private static final int myPort = 5060;
protected ClientTransaction inviteTid;
private boolean okReceived;
private Dialog dialog;
protected static final String usageString = "java "
+ "examples.shootist.Shootist \n"
+ ">>>> is your class path set to the root?";
private static Logger logger = Logger.getLogger(Shootist.class);
static {
try {
logger.addAppender(new FileAppender(new SimpleLayout(),
ProtocolObjects.logFileDirectory + "shootistconsolelog.txt"));
} catch (Exception ex) {
throw new RuntimeException("could not open shootistconsolelog.txt");
}
}
private static void usage() {
logger.info(usageString);
System.exit(0);
}
public Shootist(int count) {
this.counter = count;
}
private void shutDownAndRestart() {
try {
logger.info("nulling reference");
ProtocolObjects.sipStack.deleteListeningPoint(listeningPoint);
checkState();
// This will close down the stack and exit all threads
provider.removeSipListener(this);
while (true) {
try {
ProtocolObjects.sipStack.deleteSipProvider(provider);
break;
} catch (ObjectInUseException ex) {
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
continue;
}
}
}
ProtocolObjects.sipStack.stop();
provider = null;
inviteTid = null;
contactHeader = null;
this.listeningPoint = null;
this.reInviteCount = 0;
SipProvider sipProvider = this.createSipProvider();
sipProvider.addSipListener(this);
ProtocolObjects.sipStack.start();
// Redo this from the start.
ProtocolObjects.init("shootist", true);
this.sendInvite();
} catch (Exception ex) {
logger.error(ex);
System.exit(0);
}
}
public void processRequest(RequestEvent requestReceivedEvent) {
Request request = requestReceivedEvent.getRequest();
ServerTransaction serverTransactionId = requestReceivedEvent
.getServerTransaction();
logger.info("\n\nRequest " + request.getMethod() + " received at "
+ ProtocolObjects.sipStack.getStackName()
+ " with server transaction id " + serverTransactionId);
if (request.getMethod().equals(Request.BYE))
processBye(request, serverTransactionId);
else if (request.getMethod().equals(Request.INVITE))
processInvite(request, serverTransactionId);
else if (request.getMethod().equals(Request.ACK))
processAck(request, serverTransactionId);
}
/**
* Handle an incoming INVITE request.
*
* @param request -- request to process
* @param st -- server tx associated with the request.
*/
public void processInvite(Request request, ServerTransaction st) {
try {
System.out.println("Processing Re-INVITE ");
Response response = ProtocolObjects.messageFactory.createResponse(
Response.OK, request);
((ToHeader) response.getHeader(ToHeader.NAME))
.setTag(((ToHeader) request.getHeader(ToHeader.NAME))
.getTag());
response.addHeader(this.contactHeader);
st.sendResponse(response);
TestCase.assertEquals("Re-Inivte Dialog must match ", this.dialog,st.getDialog() );
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
/**
* Handle an incoming ACK.
*
* @param request
* @param tid
*/
public void processAck(Request request, ServerTransaction tid) {
try {
logger.info("Got an ACK! sending bye : " + tid);
if (tid != null) {
Dialog dialog = tid.getDialog();
TestCase.assertSame("Dialog mismatch",dialog, this.dialog);
Request bye = dialog.createRequest(Request.BYE);
logger.info("bye request = " + bye);
MaxForwardsHeader mf = ProtocolObjects.headerFactory
.createMaxForwardsHeader(10);
bye.addHeader(mf);
ClientTransaction ct = provider.getNewClientTransaction(bye);
dialog.sendRequest(ct);
}
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
public void processBye(Request request,
ServerTransaction serverTransactionId) {
try {
logger.info("shootist: got a bye .");
if (serverTransactionId == null) {
logger.info("shootist: null TID.");
return;
}
Dialog dialog = serverTransactionId.getDialog();
logger.info("Dialog State = " + dialog.getState());
Response response = ProtocolObjects.messageFactory.createResponse(
200, request);
serverTransactionId.sendResponse(response);
logger.info("shootist: Sending OK.");
logger.info("Dialog State = " + dialog.getState());
if (counter-- > 0)
this.shutDownAndRestart();
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
/*
* (non-Javadoc)
* @see javax.sip.SipListener#processResponse(javax.sip.ResponseEvent)
*/
public void processResponse(ResponseEvent responseReceivedEvent) {
logger.info("Got a response");
Response response = (Response) responseReceivedEvent.getResponse();
Transaction tid = responseReceivedEvent.getClientTransaction();
CSeqHeader cseq = (CSeqHeader) response.getHeader(CSeqHeader.NAME);
logger.info("Response received with client transaction id " + tid
+ ":\n" + response.getStatusCode());
if (tid == null) {
logger.info("Stray response -- dropping ");
return;
}
logger.info("transaction state is " + tid.getState());
logger.info("Dialog = " + tid.getDialog());
logger.info("Dialog State is " + tid.getDialog().getState());
try {
if (response.getStatusCode() == Response.OK
&& ((CSeqHeader) response.getHeader(CSeqHeader.NAME))
.getMethod().equals(Request.INVITE)) {
// Request cancel = inviteTid.createCancel();
// ClientTransaction ct =
// sipProvider.getNewClientTransaction(cancel);
Dialog dialog = tid.getDialog();
logger.info("dialogs = " + dialog + " thisdialog = " + this.dialog);
TestCase.assertTrue("dialog mismatch",dialog == this.dialog);
Request ackRequest = dialog.createAck( cseq.getSeqNumber() );
logger.info("Ack request to send = " + ackRequest);
logger.info("Sending ACK");
dialog.sendAck(ackRequest);
// Send a Re INVITE
if (reInviteCount == 0) {
logger.info("Sending RE-INVITE");
this.sendReInvite();
reInviteCount++;
} else {
this.okReceived = true;
}
} else if (response.getStatusCode() == Response.OK
&& ((CSeqHeader) response.getHeader(CSeqHeader.NAME))
.getMethod().equals(Request.BYE)) {
if ( this.counter -- > 0)
this.shutDownAndRestart();
}
} catch (Exception ex) {
logger.error(ex);
System.exit(0);
}
}
public void processTimeout(javax.sip.TimeoutEvent timeoutEvent) {
logger.info("Transaction Time out");
logger.info("TimeoutEvent " + timeoutEvent.getTimeout());
}
public SipProvider createSipProvider() {
try {
listeningPoint = ProtocolObjects.sipStack.createListeningPoint(
myAddress, myPort, ProtocolObjects.transport);
provider = ProtocolObjects.sipStack
.createSipProvider(listeningPoint);
return provider;
} catch (Exception ex) {
logger.error(ex);
System.exit(0);
return null;
}
}
/**
* Create and send a re-invitation.
*
* @throws Exception
*/
public void sendReInvite() throws Exception {
Request inviteRequest = dialog.createRequest(Request.INVITE);
MaxForwardsHeader mf = ProtocolObjects.headerFactory.createMaxForwardsHeader(10);
inviteRequest.setHeader(mf);
inviteRequest.setHeader(this.contactHeader);
ClientTransaction ct = provider
.getNewClientTransaction(inviteRequest);
dialog.sendRequest(ct);
}
/**
* Create and send out the initial invite.
*
*/
public void sendInvite() {
try {
// Note that a provider has multiple listening points.
// all the listening points must have the same IP address
// and port but differ in their transport parameters.
String fromName = "BigGuy";
String fromSipAddress = "here.com";
String fromDisplayName = "The Master Blaster";
String toSipAddress = "there.com";
String toUser = "LittleGuy";
String toDisplayName = "The Little Blister";
// create >From Header
SipURI fromAddress = ProtocolObjects.addressFactory.createSipURI(
fromName, fromSipAddress);
Address fromNameAddress = ProtocolObjects.addressFactory
.createAddress(fromAddress);
fromNameAddress.setDisplayName(fromDisplayName);
FromHeader fromHeader = ProtocolObjects.headerFactory
.createFromHeader(fromNameAddress, new Integer((int) (Math
.random() * Integer.MAX_VALUE)).toString());
// create To Header
SipURI toAddress = ProtocolObjects.addressFactory.createSipURI(
toUser, toSipAddress);
Address toNameAddress = ProtocolObjects.addressFactory
.createAddress(toAddress);
toNameAddress.setDisplayName(toDisplayName);
ToHeader toHeader = ProtocolObjects.headerFactory.createToHeader(
toNameAddress, null);
// create Request URI
SipURI requestURI = ProtocolObjects.addressFactory.createSipURI(
toUser, peerHostPort);
// Create ViaHeaders
ArrayList viaHeaders = new ArrayList();
int port = provider.getListeningPoint(ProtocolObjects.transport)
.getPort();
ViaHeader viaHeader = ProtocolObjects.headerFactory
.createViaHeader(myAddress, port,
ProtocolObjects.transport, null);
// add via headers
viaHeaders.add(viaHeader);
// Create ContentTypeHeader
ContentTypeHeader contentTypeHeader = ProtocolObjects.headerFactory
.createContentTypeHeader("application", "sdp");
// Create a new CallId header
CallIdHeader callIdHeader = provider.getNewCallId();
// Create a new Cseq header
CSeqHeader cSeqHeader = ProtocolObjects.headerFactory
.createCSeqHeader(1L, Request.INVITE);
// Create a new MaxForwardsHeader
MaxForwardsHeader maxForwards = ProtocolObjects.headerFactory
.createMaxForwardsHeader(70);
// Create the request.
Request request = ProtocolObjects.messageFactory.createRequest(
requestURI, Request.INVITE, callIdHeader, cSeqHeader,
fromHeader, toHeader, viaHeaders, maxForwards);
// Create contact headers
// Create the contact name address.
SipURI contactURI = ProtocolObjects.addressFactory.createSipURI(
fromName, myAddress);
contactURI.setPort(provider.getListeningPoint(
ProtocolObjects.transport).getPort());
Address contactAddress = ProtocolObjects.addressFactory
.createAddress(contactURI);
// Add the contact address.
contactAddress.setDisplayName(fromName);
contactHeader = ProtocolObjects.headerFactory
.createContactHeader(contactAddress);
request.addHeader(contactHeader);
// Add the extension header.
Header extensionHeader = ProtocolObjects.headerFactory
.createHeader("My-Header", "my header value");
request.addHeader(extensionHeader);
String sdpData = "v=0\r\n"
+ "o=4855 13760799956958020 13760799956958020"
+ " IN IP4 129.6.55.78\r\n" + "s=mysession session\r\n"
+ "p=+46 8 52018010\r\n" + "c=IN IP4 129.6.55.78\r\n"
+ "t=0 0\r\n" + "m=audio 6022 RTP/AVP 0 4 18\r\n"
+ "a=rtpmap:0 PCMU/8000\r\n" + "a=rtpmap:4 G723/8000\r\n"
+ "a=rtpmap:18 G729A/8000\r\n" + "a=ptime:20\r\n";
request.setContent(sdpData, contentTypeHeader);
// The following is the preferred method to route requests
// to the peer. Create a route header and set the "lr"
// parameter for the router header.
Address address = ProtocolObjects.addressFactory
.createAddress("<sip:" + PEER_ADDRESS + ":" + PEER_PORT
+ ">");
// SipUri sipUri = (SipUri) address.getURI();
// sipUri.setPort(PEER_PORT);
RouteHeader routeHeader = ProtocolObjects.headerFactory
.createRouteHeader(address);
SipUri sipUri = (SipUri)address.getURI();
sipUri.setLrParam();
request.addHeader(routeHeader);
extensionHeader = ProtocolObjects.headerFactory.createHeader(
"My-Other-Header", "my new header value ");
request.addHeader(extensionHeader);
Header callInfoHeader = ProtocolObjects.headerFactory.createHeader(
"Call-Info", "<http://www.antd.nist.gov>");
request.addHeader(callInfoHeader);
// Create the client transaction.
this.inviteTid = provider.getNewClientTransaction(request);
// send the request out.
this.inviteTid.sendRequest();
this.dialog = this.inviteTid.getDialog();
logger.info("created dialog " + dialog);
} catch (Exception ex) {
logger.error("Unexpected exception", ex);
usage();
}
}
public void checkState() {
TestCase.assertTrue(reInviteCount == 1 && this.okReceived);
}
/*
* (non-Javadoc)
*
* @see javax.sip.SipListener#processIOException(javax.sip.IOExceptionEvent)
*/
public void processIOException(IOExceptionEvent exceptionEvent) {
logger.info("IO Exception!");
TestCase.fail("Unexpected exception");
}
/*
* (non-Javadoc)
*
* @see javax.sip.SipListener#processTransactionTerminated(javax.sip.TransactionTerminatedEvent)
*/
public void processTransactionTerminated(
TransactionTerminatedEvent transactionTerminatedEvent) {
logger.info("Transaction Terminated Event!");
}
/*
* (non-Javadoc)
*
* @see javax.sip.SipListener#processDialogTerminated(javax.sip.DialogTerminatedEvent)
*/
public void processDialogTerminated(
DialogTerminatedEvent dialogTerminatedEvent) {
logger.info("Dialog Terminated Event!");
}
/////////////////////////////////////////////////////////////////////////////////
// main method
/////////////////////////////////////////////////////////////////////////////////
public static void main(String args[]) {
try {
ProtocolObjects.init("shootist", true);
logger.addAppender(new ConsoleAppender(new SimpleLayout()));
Shootist shootist = new Shootist(10);
shootist.createSipProvider();
shootist.provider.addSipListener(shootist);
shootist.sendInvite();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}