/**
* Creates a SIP response message.
*
* @param req the request message
* @param code the response code
* @param reason the response reason
* @param contact the contact address
* @param local_tag the local tag in the 'To' header
* @param body the message body
*/
public static Message createResponse(
Message req,
int code,
String reason,
String local_tag,
NameAddress contact,
String content_type,
String body) {
Message resp = new Message();
resp.setStatusLine(new StatusLine(code, reason));
resp.setVias(req.getVias());
if (code >= 180 && code < 300 && req.hasRecordRouteHeader())
resp.setRecordRoutes(req.getRecordRoutes());
ToHeader toh = req.getToHeader();
if (local_tag != null) toh.setParameter("tag", local_tag);
resp.setToHeader(toh);
resp.setFromHeader(req.getFromHeader());
resp.setCallIdHeader(req.getCallIdHeader());
resp.setCSeqHeader(req.getCSeqHeader());
if (contact != null) resp.setContactHeader(new ContactHeader(contact));
// add Server header field
if (SipStack.server_info != null) resp.setServerHeader(new ServerHeader(SipStack.server_info));
// if (body!=null) resp.setBody(body); else resp.setBody("");
if (content_type == null) resp.setBody(body);
else resp.setBody(content_type, body);
// System.out.println("DEBUG: MessageFactory:
// response:\n"+resp.toString());
return resp;
}
/** Creates a CANCEL request. */
public static Message createCancelRequest(Message method, Dialog dialog) {
ToHeader to = method.getToHeader();
FromHeader from = method.getFromHeader();
SipURL request_uri = method.getRequestLine().getAddress();
NameAddress contact = method.getContactHeader().getNameAddress();
ViaHeader via = method.getViaHeader();
String host_addr = via.getHost();
int host_port = via.getPort();
boolean rport = via.hasRport();
String proto = via.getProtocol();
String branch = method.getViaHeader().getBranch();
return createRequest(
SipMethods.CANCEL,
request_uri,
to.getNameAddress(),
from.getNameAddress(),
contact,
proto,
host_addr,
host_port,
rport,
method.getCallIdHeader().getCallId(),
method.getCSeqHeader().getSequenceNumber(),
from.getParameter("tag"),
to.getParameter("tag"),
branch,
"",
null,
null); // modified by mandrajg
}
/**
* Responds with <i>resp</i>. This method can be called when the InviteDialog is in D_INVITED or
* D_BYED states.
*
* <p>If the CSeq method is INVITE and the response is 2xx, it moves to state D_ACCEPTED, adds a
* new listener to the SipProviderListener, and creates new AckTransactionServer
*
* <p>If the CSeq method is INVITE and the response is not 2xx, it moves to state D_REFUSED, and
* sends the response.
*/
public void respond(Message resp)
// private void respond(Message resp)
{
printLog("inside respond(resp)", LogLevel.MEDIUM);
String method = resp.getCSeqHeader().getMethod();
if (method.equals(SipMethods.INVITE)) {
if (!verifyStatus(statusIs(D_INVITED) || statusIs(D_ReINVITED))) {
printLog(
"respond(): InviteDialog not in (re)invited state: No response now", LogLevel.HIGH);
return;
}
int code = resp.getStatusLine().getCode();
// 1xx provisional responses
if (code >= 100 && code < 200) {
invite_ts.respondWith(resp);
return;
}
// For all final responses establish the dialog
if (code >= 200) { // changeStatus(D_ACCEPTED);
update(Dialog.UAS, resp);
}
// 2xx success responses
if (code >= 200 && code < 300) {
if (statusIs(D_INVITED)) changeStatus(D_ACCEPTED);
else changeStatus(D_ReACCEPTED);
// terminates the INVITE Transaction server and activates an ACK
// Transaction server
invite_ts.terminate();
ConnectionIdentifier conn_id = invite_ts.getConnectionId();
ack_ts = new AckTransactionServer(sip_provider, conn_id, resp, this);
ack_ts.respond();
// if (statusIs(D_ReACCEPTED))
// listener.onDlgReInviteAccepted(this);
// else listener.onDlgAccepted(this);
return;
} else
// 300-699 failure responses
// if (code>=300)
{
if (statusIs(D_INVITED)) changeStatus(D_REFUSED);
else changeStatus(D_ReREFUSED);
invite_ts.respondWith(resp);
// if (statusIs(D_ReREFUSED))
// listener.onDlgReInviteRefused(this);
// else listener.onDlgRefused(this);
return;
}
}
if (method.equals(SipMethods.BYE)) {
if (!verifyStatus(statusIs(D_BYED))) return;
bye_ts.respondWith(resp);
}
}
/** Creates an ACK request for a non-2xx response */
public static Message createNon2xxAckRequest(
SipProvider sip_provider, Message method, Message resp) {
SipURL request_uri = method.getRequestLine().getAddress();
FromHeader from = method.getFromHeader();
ToHeader to = resp.getToHeader();
String via_addr = sip_provider.getViaAddress();
int host_port = sip_provider.getPort();
boolean rport = sip_provider.isRportSet();
String proto;
if (request_uri.hasTransport()) proto = request_uri.getTransport();
else proto = sip_provider.getDefaultTransport();
String branch = method.getViaHeader().getBranch();
NameAddress contact = null;
Message ack =
createRequest(
SipMethods.ACK,
request_uri,
to.getNameAddress(),
from.getNameAddress(),
contact,
proto,
via_addr,
host_port,
rport,
method.getCallIdHeader().getCallId(),
method.getCSeqHeader().getSequenceNumber(),
from.getParameter("tag"),
to.getParameter("tag"),
branch,
null,
null,
null); // modified by mandrajg
ack.removeExpiresHeader();
if (method.hasRouteHeader()) ack.setRoutes(method.getRoutes());
return ack;
}
/**
* Inherited from class SipProviderListener. Called when a new message is received (out of any
* ongoing transaction) for the current InviteDialog. Always checks for out-of-date methods (CSeq
* header sequence number).
*
* <p>If the message is ACK(2xx/INVITE) request, it moves to D_CALL state, and fires
* <i>onDlgAck(this,body,msg)</i>.
*
* <p>If the message is 2xx(INVITE) response, it create a new AckTransactionClient
*
* <p>If the message is BYE, it moves to D_BYED state, removes the listener from SipProvider,
* fires onDlgBye(this,msg) then it responds with 200 OK, moves to D_CLOSE state and fires
* onDlgClose(this)
*/
public void onReceivedMessage(SipProvider sip_provider, Message msg) {
printLog("inside onReceivedMessage(sip_provider,message)", LogLevel.MEDIUM);
if (msg.isRequest()
&& !(msg.isAck() || msg.isCancel())
&& msg.getCSeqHeader().getSequenceNumber() <= getRemoteCSeq()) {
printLog("Request message is too late (CSeq too small): Message discarded", LogLevel.HIGH);
return;
}
// invite received
if (msg.isRequest() && msg.isInvite()) {
verifyStatus(statusIs(D_INIT) || statusIs(D_CALL));
// NOTE: if the invite_ts.listen() is used, you should not arrive
// here with the D_INIT state..
// however state D_INIT has been included for robustness against
// further changes.
if (statusIs(D_INIT)) changeStatus(D_INVITED);
else changeStatus(D_ReINVITED);
invite_req = msg;
invite_ts = new InviteTransactionServer(sip_provider, invite_req, this);
// ((TransactionServer)transaction).listen();
update(Dialog.UAS, invite_req);
if (statusIs(D_INVITED))
listener.onDlgInvite(
this,
invite_req.getToHeader().getNameAddress(),
invite_req.getFromHeader().getNameAddress(),
invite_req.getBody(),
invite_req);
else listener.onDlgReInvite(this, invite_req.getBody(), invite_req);
} else
// ack (of 2xx of INVITE)
if (msg.isRequest() && msg.isAck()) {
if (!verifyStatus(statusIs(D_ACCEPTED) || statusIs(D_ReACCEPTED))) return;
changeStatus(D_CALL);
// terminates the AckTransactionServer
ack_ts.terminate();
listener.onDlgAck(this, msg.getBody(), msg);
listener.onDlgCall(this);
} else
// keep sending ACK (if already sent) for any "200 OK" received
if (msg.isResponse()) {
if (!verifyStatus(statusIs(D_CALL))) return;
int code = msg.getStatusLine().getCode();
verifyThat(code >= 200 && code < 300, "code 2xx was expected");
if (ack_req != null) {
AckTransactionClient ack_tc = new AckTransactionClient(sip_provider, ack_req, null);
ack_tc.request();
}
} else
// bye received
if (msg.isRequest() && msg.isBye()) {
if (!verifyStatus(statusIs(D_CALL) || statusIs(D_BYEING))) return;
changeStatus(D_BYED);
bye_ts = new TransactionServer(sip_provider, msg, this);
// automatically sends a 200 OK
Message resp = MessageFactory.createResponse(msg, 200, SipResponses.reasonOf(200), null);
respond(resp);
listener.onDlgBye(this, msg);
changeStatus(D_CLOSE);
listener.onDlgClose(this);
} else
// cancel received
if (msg.isRequest() && msg.isCancel()) {
if (!verifyStatus(statusIs(D_INVITED) || statusIs(D_ReINVITED))) return;
// create a CANCEL TransactionServer and send a 200 OK (CANCEL)
TransactionServer ts = new TransactionServer(sip_provider, msg, null);
// ts.listen();
ts.respondWith(MessageFactory.createResponse(msg, 200, SipResponses.reasonOf(200), null));
// automatically sends a 487 Cancelled
Message resp =
MessageFactory.createResponse(invite_req, 487, SipResponses.reasonOf(487), null);
respond(resp);
listener.onDlgCancel(this, msg);
} else
// any other request received
if (msg.isRequest()) {
TransactionServer ts = new TransactionServer(sip_provider, msg, null);
// ts.listen();
ts.respondWith(MessageFactory.createResponse(msg, 405, SipResponses.reasonOf(405), null));
}
}
/** When the TransactionClient goes into the "Completed" state receiving a 300-699 response */
public void onTransFailureResponse(TransactionClient tc, Message msg) {
// SESCA
// Autentikointi
String method = tc.getTransactionMethod();
StatusLine status_line = msg.getStatusLine();
int code = status_line.getCode();
// AUTHENTICATION-BEGIN
if ((code == 401
&& msg.hasWwwAuthenticateHeader()
&& msg.getWwwAuthenticateHeader().getRealmParam().equalsIgnoreCase(user_profile.realm))
|| (code == 407
&& msg.hasProxyAuthenticateHeader()
&& msg.getProxyAuthenticateHeader()
.getRealmParam()
.equalsIgnoreCase(user_profile.realm))) {
// req:ssa on cseq:ua kasvatettu
Message req = tc.getRequestMessage();
req.setCSeqHeader(req.getCSeqHeader().incSequenceNumber());
WwwAuthenticateHeader wah;
if (code == 401) wah = msg.getWwwAuthenticateHeader();
else wah = msg.getProxyAuthenticateHeader();
String qop_options = wah.getQopOptionsParam();
qop = (qop_options != null) ? "auth" : null;
RequestLine rl = req.getRequestLine();
// SESCA
// BUGI client ei saa lähettää qop:ia
// DigestAuthentication digest=new
// DigestAuthentication(rl.getMethod(),rl.getAddress().toString(),wah,qop,null,username,passwd);
DigestAuthentication digest =
new DigestAuthentication(
rl.getMethod(),
rl.getAddress().toString(),
wah,
null,
null,
user_profile.authID,
user_profile.passwd);
AuthorizationHeader ah;
if (code == 401) ah = digest.getAuthorizationHeader();
else ah = digest.getProxyAuthorizationHeader();
req.setAuthorizationHeader(ah);
// transactions.remove(tc.getTransactionId());
// SESCA
// BUGI
// Päivitetään invite_req:uun uusin invite-viesti.
// Lähetämme uuden inviten, joten teemme uuden invitetransactionclientin, eikä transaction
// clientia
// if (method.equals(SipMethods.INVITE)) {
// invite_req = req;
// tc=new InviteTransactionClient(sip_provider,req,this);
tc = new TransactionClient(sip_provider, req, this);
// tc=new TransactionClient(sip_provider,req,this);
// }
// else {
// tc=new TransactionClient(sip_provider,req,this);
// }
// transactions.put(tc.getTransactionId(),tc);
tc.request();
}
// AUTHENTICATION-END
else onDeliveryFailure(tc, msg.getStatusLine().getReason());
}