examples.redirect.Shootist Maven / Gradle / Ivy
package examples.redirect;
import javax.sip.*;
import javax.sip.address.*;
import javax.sip.header.*;
import javax.sip.message.*;
import org.apache.log4j.ConsoleAppender;
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 extends TestCase implements SipListener {
private SipProvider sipProvider;
private ProtocolObjects protocolObjects;
private ContactHeader contactHeader;
private ListeningPoint listeningPoint;
private ClientTransaction inviteTid;
private Dialog dialog;
public static final int myPort = 5080;
private int peerPort;
private String peerHostPort;
private int dialogTerminatedCount;
private int transctionTerminatedCount;
private int transactionCount;
private int dialogCount;
private boolean byeReceived;
private boolean redirectReceived;
private SipURI requestURI;
private static Logger logger = Logger.getLogger(Shootist.class);
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);
// 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 {
logger.info("shootist: got a bye . ServerTxId = " + serverTransactionId);
this.byeReceived = true;
if (serverTransactionId == null) {
logger.info("shootist: null TID.");
return;
}
Dialog dialog = serverTransactionId.getDialog();
assertTrue(dialog == this.dialog);
logger.info("Dialog State = " + dialog.getState());
Response response = protocolObjects.messageFactory.createResponse(
200, request);
serverTransactionId.sendResponse(response);
this.transactionCount++;
logger.info("shootist: Sending OK.");
logger.info("Dialog State = " + dialog.getState());
assertTrue(serverTransactionId.getState() == TransactionState.COMPLETED);
assertTrue(dialog.getState() == DialogState.TERMINATED);
} catch (Exception ex) {
ex.printStackTrace();
System.exit(0);
}
}
public void processResponse(ResponseEvent responseReceivedEvent) {
logger.info("Got a response");
Response response = (Response) responseReceivedEvent.getResponse();
ClientTransaction tid = responseReceivedEvent.getClientTransaction();
CSeqHeader cseq = (CSeqHeader) response.getHeader(CSeqHeader.NAME);
logger.info("Response received : Status Code = "
+ response.getStatusCode() + " " + cseq);
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) {
logger.info("response = " + response);
if (cseq.getMethod().equals(Request.INVITE)) {
Request ackRequest = dialog.createAck(cseq.getSeqNumber());
logger.info("Sending ACK");
dialog.sendAck(ackRequest);
}
} else if (response.getStatusCode() == Response.MOVED_TEMPORARILY) {
// Dialog dies as soon as you get an error response.
assertTrue(tid.getDialog().getState() == DialogState.TERMINATED);
assertTrue(tid.getDialog() == this.dialog);
this.redirectReceived = true;
if (cseq.getMethod().equals(Request.INVITE)) {
// lookup the contact header
ContactHeader contHdr = (ContactHeader) response
.getHeader(ContactHeader.NAME);
// we can re-use the from header
FromHeader from = ((FromHeader) response
.getHeader(FromHeader.NAME));
// we use the to-address, but without the tag
ToHeader to = (ToHeader) (response.getHeader(ToHeader.NAME)).clone();
to.removeParameter("tag");
// the call-id can be re-used
CallIdHeader callID = ((CallIdHeader) response
.getHeader(CallIdHeader.NAME));
// we take the next cseq
long seqNo = (((CSeqHeader) response
.getHeader(CSeqHeader.NAME)).getSeqNumber());
logger.info("seqNo = " + seqNo);
CSeqHeader cseqNew = protocolObjects.headerFactory
.createCSeqHeader(++seqNo, "INVITE");
// Create ViaHeaders (either use tcp or udp)
ArrayList viaHeaders = new ArrayList();
ViaHeader viaHeader = protocolObjects.headerFactory
.createViaHeader("127.0.0.1", sipProvider
.getListeningPoint(protocolObjects.transport).getPort(),
protocolObjects.transport,
null);
// add via headers
viaHeaders.add(viaHeader);
// create max forwards
MaxForwardsHeader maxForwardsHeader = protocolObjects.headerFactory
.createMaxForwardsHeader(10);
// create invite Request
SipURI newUri = (SipURI)this.requestURI.clone();
newUri.setParameter("redirection", "true");
Request invRequest = protocolObjects.messageFactory
.createRequest(newUri,
"INVITE", callID, cseqNew, from, to,
viaHeaders, maxForwardsHeader);
// we set the Request URI to the address given
SipURI contactURI =
protocolObjects.addressFactory.createSipURI(null, this.listeningPoint.getIPAddress());
contactURI.setPort(this.listeningPoint.getPort());
contactURI.setTransportParam(protocolObjects.transport);
Address address = protocolObjects.addressFactory.createAddress(contactURI);
ContactHeader contact = protocolObjects.headerFactory.createContactHeader(address);
invRequest.addHeader(contact);
// the contacat header in the response contains where to redirect
// the request to -- which in this case happens to be back to the
// same location.
ContactHeader chdr = (ContactHeader)response.getHeader(ContactHeader.NAME);
SipURI sipUri = (SipURI)chdr.getAddress().getURI();
sipUri.setLrParam();
RouteHeader routeHeader =
protocolObjects.headerFactory.createRouteHeader(chdr.getAddress());
invRequest.addHeader(routeHeader);
logger.info("Sending INVITE to "
+ contHdr.getAddress().getURI().toString());
inviteTid = sipProvider.getNewClientTransaction(invRequest);
this.transactionCount++;
logger.info("New TID = " + inviteTid);
inviteTid.sendRequest();
assertTrue(inviteTid.getState() == TransactionState.CALLING);
logger.info("sendReqeust succeeded " + inviteTid);
Dialog dialog = inviteTid.getDialog();
assertTrue("Stack must allocate a new dialog", dialog != this.dialog);
this.dialogCount ++;
this.dialog = dialog;
}
}
/**
* end of modified code
*/
} catch (Exception ex) {
ex.printStackTrace();
fail("unexpeced exception");
}
}
public void processTimeout(javax.sip.TimeoutEvent timeoutEvent) {
logger.info("Transaction Time out");
fail("Unexpected event");
}
public SipProvider createProvider() throws Exception {
logger.info("Shootist: createProvider()");
listeningPoint = protocolObjects.sipStack.createListeningPoint(
"127.0.0.1", myPort, protocolObjects.transport);
this.sipProvider = protocolObjects.sipStack
.createSipProvider(listeningPoint);
assertTrue("listening point should be the same as what the provider returns for this transport",
listeningPoint == sipProvider.getListeningPoint(protocolObjects.transport));
return sipProvider;
}
public void sendInvite() {
try {
/**
* either use udp or tcp
*/
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, "12345");
// 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
this.requestURI = protocolObjects.addressFactory.createSipURI(
toUser, peerHostPort);
// Create ViaHeaders
ArrayList viaHeaders = new ArrayList();
ViaHeader viaHeader = protocolObjects.headerFactory
.createViaHeader("127.0.0.1", sipProvider
.getListeningPoint(protocolObjects.transport).getPort(), 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 = sipProvider.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
String host = "127.0.0.1";
SipURI contactUrl = protocolObjects.addressFactory.createSipURI(
fromName, host);
/**
* either use tcp or udp
*/
contactUrl.setPort(listeningPoint.getPort());
contactUrl.setTransportParam(protocolObjects.transport);
// Create the contact name address.
Address contactAddress = protocolObjects.addressFactory
.createAddress(contactUrl);
contactUrl.setLrParam();
// Add the contact address.
contactAddress.setDisplayName(fromName);
contactHeader = protocolObjects.headerFactory
.createContactHeader(contactAddress);
request.addHeader(contactHeader);
SipURI uri = protocolObjects.addressFactory.createSipURI(null, "127.0.0.1");
uri.setLrParam();
uri.setTransportParam(protocolObjects.transport);
uri.setPort(this.peerPort);
Address address = protocolObjects.addressFactory.createAddress(uri);
RouteHeader routeHeader = protocolObjects.headerFactory.createRouteHeader(address);
request.addHeader(routeHeader);
// 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";
byte[] contents = sdpData.getBytes();
request.setContent(contents, contentTypeHeader);
extensionHeader = protocolObjects.headerFactory.createHeader(
"My-Other-Header", "my new header value ");
request.addHeader(extensionHeader);
Header callInfoHeader = protocolObjects.headerFactory.createHeader(
"Call-Info", "");
request.addHeader(callInfoHeader);
// Create the client transaction.
inviteTid = sipProvider.getNewClientTransaction(request);
// send the request out.
inviteTid.sendRequest();
this.transactionCount ++;
assertTrue(inviteTid.getState() == TransactionState.CALLING);
logger.info("client tx = " + inviteTid);
dialog = inviteTid.getDialog();
this.dialogCount++;
assertTrue(dialog != null);
assertTrue(dialog.getState() == null);
} catch (Exception ex) {
logger.error(ex.getMessage(),ex);
fail("unexpected exception");
}
}
public Shootist (ProtocolObjects protocolObjects) {
this.protocolObjects = protocolObjects;
this.peerPort = Shootme.myPort;
this.peerHostPort = "127.0.0.1:"+ peerPort;
}
public static void main(String args[]) throws Exception {
ProtocolObjects protocolObjects = new ProtocolObjects ("shootist",true,"udp","");
logger.addAppender(new ConsoleAppender(new SimpleLayout()));
Shootist shootist = new Shootist(protocolObjects);
shootist.createProvider();
shootist.sipProvider.addSipListener(shootist);
shootist.sendInvite();
}
public void processIOException(IOExceptionEvent exceptionEvent) {
logger.info("IOException happened for "
+ exceptionEvent.getHost() + " port = "
+ exceptionEvent.getPort());
}
public void processTransactionTerminated(
TransactionTerminatedEvent transactionTerminatedEvent) {
logger.info("Transaction terminated event recieved for " +
transactionTerminatedEvent.getClientTransaction());
this.transctionTerminatedCount++;
}
public void processDialogTerminated(
DialogTerminatedEvent dialogTerminatedEvent) {
this.dialogTerminatedCount++;
}
public void checkState() {
assertTrue(dialogTerminatedCount == dialogCount);
assertTrue(this.byeReceived && this.redirectReceived );
}
}
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