examples.prack.Shootist Maven / Gradle / Ivy

Go to download
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);
		System.exit(0);

	}

	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();
			System.exit(0);

		}
	}

	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.createRequest(Request.ACK);
					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();
			System.exit(0);
		}

	}

	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());
			System.exit(0);
		}

		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");

	}
}