throw new SipException("Cannot find listening point for transport "
+ sipResponse.getTopmostVia().getTransport());
}
Via via = lp.getViaHeader();
From from = new From();
from.setAddress(this.localParty);
To to = new To();
to.setAddress(this.remoteParty);
SIPRequest sipRequest = sipResponse.createRequest(sipUri, via, cseq, from, to);
/*
* The default contact header is obtained from the provider. The application can override
* this.
*
* JvB: Should only do this for target refresh requests, ie not for BYE, PRACK, etc
*/
if (SIPRequest.isTargetRefresh(method)) {
ContactHeader contactHeader = ((ListeningPointImpl) this.sipProvider
.getListeningPoint(lp.getTransport())).createContactHeader();
((SipURI) contactHeader.getAddress().getURI()).setSecure(this.isSecure());
sipRequest.setHeader(contactHeader);
}
try {
/*
* Guess of local sequence number - this is being re-set when the request is actually
* dispatched
*/
cseq = (CSeq) sipRequest.getCSeq();
cseq.setSeqNumber(this.localSequenceNumber + 1);
} catch (InvalidArgumentException ex) {
InternalErrorHandler.handleException(ex);
}
if (method.equals(Request.SUBSCRIBE)) {
if (eventHeader != null)
sipRequest.addHeader(eventHeader);
}
/*
* RFC3261, section 12.2.1.1:
*
* The URI in the To field of the request MUST be set to the remote URI from the dialog
* state. The tag in the To header field of the request MUST be set to the remote tag of
* the dialog ID. The From URI of the request MUST be set to the local URI from the dialog
* state. The tag in the From header field of the request MUST be set to the local tag of
* the dialog ID. If the value of the remote or local tags is null, the tag parameter MUST
* be omitted from the To or From header fields, respectively.
*/
try {
if (this.getLocalTag() != null) {
from.setTag(this.getLocalTag());
} else {
from.removeTag();
}
if (this.getRemoteTag() != null) {
to.setTag(this.getRemoteTag());
} else {
to.removeTag();