package examples.noautodialog;
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. This illustrates how to go about when you want
* explicit control over creation of dialogs.
*
* @author M. Ranganathan
*/
public class Shootme implements SipListener {
private static AddressFactory addressFactory;
private static MessageFactory messageFactory;
private static HeaderFactory headerFactory;
private static SipStack sipStack;
// To run on two machines change these to suit.
public static final String myAddress = "127.0.0.1";
private static final int myPort = 5070;
protected ServerTransaction inviteTid;
protected ClientTransaction clientTid;
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);
System.exit(0);
}
public void processRequest(RequestEvent requestEvent) {
Request request = requestEvent.getRequest();
ServerTransaction serverTransactionId = requestEvent
.getServerTransaction();
System.out.println("\n\nRequest " + request.getMethod()
+ " received at " + sipStack.getStackName()
+ " with server transaction id " + serverTransactionId);
if (request.getMethod().equals(Request.INVITE)) {
processInvite(requestEvent, serverTransactionId);
} else if (request.getMethod().equals(Request.ACK)) {
processAck(requestEvent, serverTransactionId);
} else if (request.getMethod().equals(Request.BYE)) {
processBye(requestEvent, serverTransactionId);
}
}
/**
* Process the ACK request.
*/
public void processAck(RequestEvent requestEvent,
ServerTransaction serverTransaction) {
SipProvider sipProvider = (SipProvider) requestEvent.getSource();
try {
System.out.println("shootme: got an ACK "
+ requestEvent.getRequest());
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
/**
* Process the invite request.
*/
public void processInvite(RequestEvent requestEvent,
ServerTransaction serverTransaction) {
SipProvider sipProvider = (SipProvider) requestEvent.getSource();
Request request = requestEvent.getRequest();
System.out.println("Got an INVITE " + request);
try {
System.out.println("shootme: got an Invite sending 180 and 200");
//System.out.println("shootme: " + request);
Response response = messageFactory.createResponse(180, request);
ToHeader toHeader = (ToHeader) response.getHeader(ToHeader.NAME);
toHeader.setTag("4321"); // Application is supposed to set.
Address address = addressFactory.createAddress("Shootme <sip:"
+ myAddress + ":" + myPort + ">");
ContactHeader contactHeader = headerFactory
.createContactHeader(address);
response.addHeader(contactHeader);
ServerTransaction st = requestEvent.getServerTransaction();
if (st == null) {
st = sipProvider.getNewServerTransaction(request);
System.out.println("Server transaction created!" + request);
System.out.println("Dialog = " + st.getDialog());
}
// Thread.sleep(5000);
System.out.println("got a server tranasaction " + st);
byte[] content = request.getRawContent();
if (content != null) {
System.out.println(" content = " + new String(content));
ContentTypeHeader contentTypeHeader = headerFactory
.createContentTypeHeader("application", "sdp");
System.out.println("response = " + response);
response.setContent(content, contentTypeHeader);
}
Dialog dialog = st.getDialog();
System.out.println("Dialog " + dialog);
dialog = sipProvider.getNewDialog(st);
System.out.println("Dialog " + st.getDialog());
if ( dialog != st.getDialog() ) {
throw new RuntimeException("Dialog mismatch ");
}
response = messageFactory.createResponse(200, request);
toHeader = (ToHeader) response.getHeader(ToHeader.NAME);
toHeader.setTag("4321");
// Application is supposed to set.
response.addHeader(contactHeader);
st.sendResponse(response);
this.inviteTid = st;
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
/**
* Process the bye request.
*/
public void processBye(RequestEvent requestEvent,
ServerTransaction serverTransactionId) {
SipProvider sipProvider = (SipProvider) requestEvent.getSource();
Request request = requestEvent.getRequest();
try {
System.out.println("shootme: got a bye sending OK.");
Response response = messageFactory.createResponse(200, request);
if ( serverTransactionId == null ) {
System.out.println("Note that we can create a new tx here!");
serverTransactionId = sipProvider.getNewServerTransaction(request);
System.out.println("Creating new server transaction for bye "
+ serverTransactionId);
}
// Fire and forget.
serverTransactionId.sendResponse(response);
System.out.println("We are not creating a dialog for this.");
System.out.println("Dialog is "
+ serverTransactionId.getDialog());
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
public void processResponse(ResponseEvent responseReceivedEvent) {
System.out.println("Got a response");
Response response = (Response) responseReceivedEvent.getResponse();
Transaction tid = responseReceivedEvent.getClientTransaction();
CSeqHeader cseq = (CSeqHeader) response.getHeader(CSeqHeader.NAME);
System.out.println("Response received with client transaction id "
+ tid + ":\n" + response);
try {
if (response.getStatusCode() == Response.OK
&& ((CSeqHeader) response.getHeader(CSeqHeader.NAME))
.getMethod().equals(Request.INVITE)) {
Dialog dialog = tid.getDialog();
Request ackRequest = dialog.createAck( cseq.getSeqNumber() );
dialog.sendAck(ackRequest);
}
Dialog dialog = tid.getDialog();
System.out.println("Dalog State = " + dialog.getState());
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
public void processTimeout(javax.sip.TimeoutEvent timeoutEvent) {
Transaction transaction;
if (timeoutEvent.isServerTransaction()) {
transaction = timeoutEvent.getServerTransaction();
} else {
transaction = timeoutEvent.getClientTransaction();
}
System.out.println("state = " + transaction.getState());
System.out.println("dialog = " + transaction.getDialog());
System.out.println("dialogState = "
+ transaction.getDialog().getState());
System.out.println("Transaction Time out");
}
public void init() {
SipFactory sipFactory = null;
sipStack = null;
sipFactory = SipFactory.getInstance();
sipFactory.setPathName("gov.nist");
Properties properties = new Properties();
properties.setProperty("javax.sip.STACK_NAME", "shootme");
// Note that this turns off automatic dialog creation. This
// mode of operaton is good for proxy servers.
properties.setProperty("javax.sip.AUTOMATIC_DIALOG_SUPPORT", "off");
// 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");
properties.setProperty("gov.nist.javax.sip.DEBUG_LOG",
"shootmedebug.txt");
properties.setProperty("gov.nist.javax.sip.SERVER_LOG",
"shootmelog.txt");
// Guard against starvation.
properties.setProperty("gov.nist.javax.sip.READ_TIMEOUT", "1000");
// properties.setProperty("gov.nist.javax.sip.MAX_MESSAGE_SIZE",
// "4096");
properties.setProperty("gov.nist.javax.sip.CACHE_SERVER_CONNECTIONS",
"false");
try {
// Create SipStack object
sipStack = sipFactory.createSipStack(properties);
System.out.println("sipStack = " + sipStack);
} catch (PeerUnavailableException e) {
// could not find
// gov.nist.jain.protocol.ip.sip.SipStackImpl
// in the classpath
e.printStackTrace();
System.err.println(e.getMessage());
if (e.getCause() != null)
e.getCause().printStackTrace();
System.exit(0);
}
try {
headerFactory = sipFactory.createHeaderFactory();
addressFactory = sipFactory.createAddressFactory();
messageFactory = sipFactory.createMessageFactory();
ListeningPoint lp = sipStack.createListeningPoint(myAddress,5070, "udp");
ListeningPoint lp1 = sipStack.createListeningPoint(myAddress,5070, "tcp");
Shootme listener = this;
SipProvider sipProvider = sipStack.createSipProvider(lp);
System.out.println("udp provider " + sipProvider);
sipProvider.addSipListener(listener);
sipProvider = sipStack.createSipProvider(lp1);
System.out.println("tcp provider " + sipProvider);
sipProvider.addSipListener(listener);
} catch (Exception ex) {
System.out.println(ex.getMessage());
ex.printStackTrace();
usage();
}
}
public static void main(String args[]) {
new Shootme().init();
}
/*
* (non-Javadoc)
*
* @see javax.sip.SipListener#processIOException(javax.sip.IOExceptionEvent)
*/
public void processIOException(IOExceptionEvent exceptionEvent) {
System.out.println("An IO Exception was detected : "
+ exceptionEvent.getHost());
}
/*
* (non-Javadoc)
*
* @see javax.sip.SipListener#processTransactionTerminated(javax.sip.TransactionTerminatedEvent)
*/
public void processTransactionTerminated(
TransactionTerminatedEvent transactionTerminatedEvent) {
System.out.println("Tx terminated event ");
}
/*
* (non-Javadoc)
*
* @see javax.sip.SipListener#processDialogTerminated(javax.sip.DialogTerminatedEvent)
*/
public void processDialogTerminated(
DialogTerminatedEvent dialogTerminatedEvent) {
System.out.println("Dialog terminated event detected ");
}
}