Method makeRequest

SIP/SIPBase.cpp:528–549

A request inside an invite is ACK, CANCEL, BYE, INFO, or re-INVITE. The only target-refresh-request is re-INVITE, which can change the "Dialog State". For ACK sec 17.1.1.3 the To must equal the To of the response being acked, which specifically contains a tag. ACK contains only one via == top via of original request with matching branch. TODO: ACK must copy route header fields from INVITE. sec 9.1

// It should not include CONTACT because it is non-target-refresh.
// Implicit parameters from SipBase: mCallId, mRemoteUsername, mRemoteDomain, mCSeq, etc.
SipMessage *SipBase::makeRequest(string method,string requestUri, string whoami, SipPreposition*toHeader, SipPreposition*fromHeader, string branch)
{
	SipMessage *invite = new SipMessage();
	invite->msmReqMethod = method;
	invite->msmCallId = this->mCallId;
	//string toContact = makeUri(mRemoteUsername,mRemoteDomain);	// dialed_number@remote_ip
	//string fromContact = makeUri(mSipUsername,localIP());
	//invite->msmReqUri = makeUri(mRemoteUsername,mRemoteDomain);
	invite->msmReqUri = requestUri;
	invite->smAddViaBranch(this,branch);
	invite->msmCSeqMethod = invite->msmReqMethod;
	invite->msmCSeqNum = mLocalCSeq;		// We dont need to advance for an initial request; caller advances if necessary.
	invite->msmTo = *toHeader;
	invite->msmFrom = *fromHeader;
	invite->msmContactValue = localContact(whoami);
	string prefid = this->preferredIdentity(whoami);
	static const string cPreferredIdentityString("P-Preferred-Identity");
	invite->smAddHeader(cPreferredIdentityString,prefid);

	// The caller has not added the content yet: saveInviteOrMessage(invite,true);
	return invite;
}

// This is an *initial* request only, for INVITE or MESSAGE.
// This version generates the request from the values in the DialogStateVars.