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examples.prack.Shootist Maven / Gradle / Ivy
package examples.prack;
import javax.sip.*;
import javax.sip.address.*;
import javax.sip.header.*;
import javax.sip.message.*;
import java.util.*;
/**
* 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 static SipProvider sipProvider;
private static AddressFactory addressFactory;
private static MessageFactory messageFactory;
private static HeaderFactory headerFactory;
private static SipStack sipStack;
private ContactHeader contactHeader;
private ListeningPoint udpListeningPoint;
private ClientTransaction inviteTid;
private Dialog dialog;
protected static final String usageString = "java "
+ "examples.shootist.Shootist \n"
+ ">>>> is your class path set to the root?";
private static void usage() {
System.out.println(usageString);
junit.framework.TestCase.fail("Exit JVM");
}
public void processRequest(RequestEvent requestReceivedEvent) {
Request request = requestReceivedEvent.getRequest();
ServerTransaction serverTransactionId = requestReceivedEvent
.getServerTransaction();
System.out.println("\n\nRequest " + request.getMethod()
+ " received at " + sipStack.getStackName()
+ " with server transaction id " + serverTransactionId);
// We are the UAC so the only request we get is the BYE.
if (request.getMethod().equals(Request.BYE))
processBye(request, serverTransactionId);
}
public void processBye(Request request,
ServerTransaction serverTransactionId) {
try {
System.out.println("shootist: got a bye .");
if (serverTransactionId == null) {
System.out.println("shootist: null TID.");
return;
}
Dialog dialog = serverTransactionId.getDialog();
System.out.println("Dialog State = " + dialog.getState());
Response response = messageFactory.createResponse(200, request);
serverTransactionId.sendResponse(response);
System.out.println("shootist: Sending OK.");
System.out.println("Dialog State = " + dialog.getState());
} catch (Exception ex) {
ex.printStackTrace();
junit.framework.TestCase.fail("Exit JVM");
}
}
public void processResponse(ResponseEvent responseReceivedEvent) {
System.out.println("Got a response");
Response response = (Response) responseReceivedEvent.getResponse();
ClientTransaction tid = responseReceivedEvent.getClientTransaction();
CSeqHeader cseq = (CSeqHeader) response.getHeader(CSeqHeader.NAME);
System.out.println("Response received : Status Code = "
+ response.getStatusCode() + " " + cseq);
if (tid == null) {
System.out.println("Stray response -- dropping ");
return;
}
System.out.println("transaction state is " + tid.getState());
System.out.println("Dialog = " + tid.getDialog());
System.out.println("Dialog State is " + tid.getDialog().getState());
SipProvider provider = (SipProvider) responseReceivedEvent.getSource();
try {
if (response.getStatusCode() == Response.OK) {
if (cseq.getMethod().equals(Request.INVITE)) {
Request ackRequest = dialog.createAck( cseq.getSeqNumber() );
System.out.println("Sending ACK");
dialog.sendAck(ackRequest);
} else if (cseq.getMethod().equals(Request.CANCEL)) {
if (dialog.getState() == DialogState.CONFIRMED) {
// oops cancel went in too late. Need to hang up the
// dialog.
System.out
.println("Sending BYE -- cancel went in too late !!");
Request byeRequest = dialog.createRequest(Request.BYE);
ClientTransaction ct = sipProvider
.getNewClientTransaction(byeRequest);
dialog.sendRequest(ct);
}
}
} else if ( response.getStatusCode() == 183) {
RequireHeader requireHeader = (RequireHeader) response.getHeader(RequireHeader.NAME);
if ( requireHeader.getOptionTag().equalsIgnoreCase("100rel")) {
Dialog dialog = tid.getDialog();
Request prackRequest = dialog.createPrack(response);
ClientTransaction ct = provider.getNewClientTransaction(prackRequest);
dialog.sendRequest(ct);
}
}
} catch (Exception ex) {
ex.printStackTrace();
junit.framework.TestCase.fail("Exit JVM");
}
}
public void processTimeout(javax.sip.TimeoutEvent timeoutEvent) {
System.out.println("Transaction Time out");
}
public void sendCancel() {
try {
System.out.println("Sending cancel");
Request cancelRequest = inviteTid.createCancel();
ClientTransaction cancelTid = sipProvider
.getNewClientTransaction(cancelRequest);
cancelTid.sendRequest();
} catch (Exception ex) {
ex.printStackTrace();
}
}
public void init() {
SipFactory sipFactory = null;
sipStack = null;
sipFactory = SipFactory.getInstance();
sipFactory.setPathName("gov.nist");
Properties properties = new Properties();
// If you want to try TCP transport change the following to
String transport = "udp";
String peerHostPort = "127.0.0.1:5070";
properties.setProperty("javax.sip.OUTBOUND_PROXY", peerHostPort + "/"
+ transport);
// If you want to use UDP then uncomment this.
properties.setProperty("javax.sip.STACK_NAME", "shootist");
// The following properties are specific to nist-sip
// and are not necessarily part of any other jain-sip
// implementation.
// You can set a max message size for tcp transport to
// guard against denial of service attack.
properties.setProperty("gov.nist.javax.sip.DEBUG_LOG",
"shootistdebug.txt");
properties.setProperty("gov.nist.javax.sip.SERVER_LOG",
"shootistlog.txt");
// Set to 0 in your production code for max speed.
// You need 16 for logging traces. 32 for debug + traces.
// Your code will limp at 32 but it is best for debugging.
properties.setProperty("gov.nist.javax.sip.TRACE_LEVEL", "32");
try {
// Create SipStack object
sipStack = sipFactory.createSipStack(properties);
System.out.println("createSipStack " + sipStack);
} catch (PeerUnavailableException e) {
// could not find
// gov.nist.jain.protocol.ip.sip.SipStackImpl
// in the classpath
e.printStackTrace();
System.err.println(e.getMessage());
junit.framework.TestCase.fail("Exit JVM");
}
try {
headerFactory = sipFactory.createHeaderFactory();
addressFactory = sipFactory.createAddressFactory();
messageFactory = sipFactory.createMessageFactory();
udpListeningPoint = sipStack.createListeningPoint("127.0.0.1",
5060, "udp");
sipProvider = sipStack.createSipProvider(udpListeningPoint);
Shootist listener = this;
sipProvider.addSipListener(listener);
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 = addressFactory.createSipURI(fromName,
fromSipAddress);
Address fromNameAddress = addressFactory.createAddress(fromAddress);
fromNameAddress.setDisplayName(fromDisplayName);
FromHeader fromHeader = headerFactory.createFromHeader(
fromNameAddress, "12345");
// create To Header
SipURI toAddress = addressFactory
.createSipURI(toUser, toSipAddress);
Address toNameAddress = addressFactory.createAddress(toAddress);
toNameAddress.setDisplayName(toDisplayName);
ToHeader toHeader = headerFactory.createToHeader(toNameAddress,
null);
// create Request URI
SipURI requestURI = addressFactory.createSipURI(toUser,
peerHostPort);
// Create ViaHeaders
ArrayList viaHeaders = new ArrayList();
ViaHeader viaHeader = headerFactory.createViaHeader("127.0.0.1",
sipProvider.getListeningPoint(transport).getPort(),
transport, null);
// add via headers
viaHeaders.add(viaHeader);
// Create ContentTypeHeader
ContentTypeHeader contentTypeHeader = headerFactory
.createContentTypeHeader("application", "sdp");
// Create a new CallId header
CallIdHeader callIdHeader = sipProvider.getNewCallId();
// Create a new Cseq header
CSeqHeader cSeqHeader = headerFactory.createCSeqHeader(1L,
Request.INVITE);
// Create a new MaxForwardsHeader
MaxForwardsHeader maxForwards = headerFactory
.createMaxForwardsHeader(70);
// Create the request.
Request request = messageFactory.createRequest(requestURI,
Request.INVITE, callIdHeader, cSeqHeader, fromHeader,
toHeader, viaHeaders, maxForwards);
// Create contact headers
String host = "127.0.0.1";
SipURI contactUrl = addressFactory.createSipURI(fromName, host);
contactUrl.setPort(udpListeningPoint.getPort());
// Create the contact name address.
SipURI contactURI = addressFactory.createSipURI(fromName, host);
contactURI.setPort(sipProvider.getListeningPoint(transport)
.getPort());
Address contactAddress = addressFactory.createAddress(contactURI);
// Add the contact address.
contactAddress.setDisplayName(fromName);
contactHeader = headerFactory.createContactHeader(contactAddress);
request.addHeader(contactHeader);
/*
* When the UAC creates a new request, it can insist on reliable
* delivery of provisional responses for that request. To do that,
* it inserts a Require header field with the option tag 100rel into
* the request.
*/
RequireHeader requireHeader = headerFactory
.createRequireHeader("100rel");
request.addHeader(requireHeader);
// Create the client transaction.
inviteTid = sipProvider.getNewClientTransaction(request);
// send the request out.
inviteTid.sendRequest();
dialog = inviteTid.getDialog();
} catch (Exception ex) {
System.out.println(ex.getMessage());
ex.printStackTrace();
usage();
}
}
public static void main(String args[]) {
new Shootist().init();
}
public void processIOException(IOExceptionEvent exceptionEvent) {
System.out.println("IOException happened for "
+ exceptionEvent.getHost() + " port = "
+ exceptionEvent.getPort());
}
public void processTransactionTerminated(
TransactionTerminatedEvent transactionTerminatedEvent) {
System.out.println("Transaction terminated event recieved");
}
public void processDialogTerminated(
DialogTerminatedEvent dialogTerminatedEvent) {
System.out.println("dialogTerminatedEvent");
}
}
