void DSMCall::B2BterminateOtherLeg() {
terminateOtherLeg();
}
void AmB2BSession::onSessionTimeout() {
DBG("Session Timer: Timeout, ending other leg\n");
terminateOtherLeg();
AmSession::onSessionTimeout();
}
void AmB2BSession::onNoAck(unsigned int cseq)
{
DBG("OnNoAck(%u): terminate other leg.\n",cseq);
terminateOtherLeg();
AmSession::onNoAck(cseq);
}
void AmB2BSession::onRtpTimeout() {
DBG("RTP Timeout, ending other leg\n");
terminateOtherLeg();
AmSession::onRtpTimeout();
}
void AmB2BSession::onB2BEvent(B2BEvent* ev)
{
DBG("AmB2BSession::onB2BEvent\n");
switch(ev->event_id){
case B2BSipRequest:
{
B2BSipRequestEvent* req_ev = dynamic_cast<B2BSipRequestEvent*>(ev);
assert(req_ev);
DBG("B2BSipRequest: %s (fwd=%s)\n",
req_ev->req.method.c_str(),
req_ev->forward?"true":"false");
if(req_ev->forward){
// Check Max-Forwards first
if(req_ev->req.max_forwards == 0) {
relayError(req_ev->req.method,req_ev->req.cseq,
true,483,SIP_REPLY_TOO_MANY_HOPS);
return;
}
if (req_ev->req.method == SIP_METH_INVITE &&
dlg->getUACInvTransPending()) {
// don't relay INVITE if INV trans pending
DBG("not sip-relaying INVITE with pending INV transaction, "
"b2b-relaying 491 pending\n");
relayError(req_ev->req.method, req_ev->req.cseq,
true, 491, SIP_REPLY_PENDING);
return;
}
if (req_ev->req.method == SIP_METH_BYE &&
dlg->getStatus() != AmBasicSipDialog::Connected) {
DBG("not sip-relaying BYE in not connected dlg, b2b-relaying 200 OK\n");
relayError(req_ev->req.method, req_ev->req.cseq,
true, 200, "OK");
return;
}
}
if( (req_ev->req.method == SIP_METH_BYE)
// CANCEL is handled differently: other side has already
// sent a terminate event.
//|| (req_ev->req.method == SIP_METH_CANCEL)
) {
if (onOtherBye(req_ev->req))
req_ev->processed = true; // app should have relayed 200 to BYE
}
if(req_ev->forward && !req_ev->processed){
int res = relaySip(req_ev->req);
if(res < 0) {
// reply relayed request internally
relayError(req_ev->req.method, req_ev->req.cseq, true, res);
return;
}
}
}
return;
case B2BSipReply:
{
B2BSipReplyEvent* reply_ev = dynamic_cast<B2BSipReplyEvent*>(ev);
assert(reply_ev);
DBG("B2BSipReply: %i %s (fwd=%s)\n",reply_ev->reply.code,
reply_ev->reply.reason.c_str(),reply_ev->forward?"true":"false");
DBG("B2BSipReply: content-type = %s\n",
reply_ev->reply.body.getCTStr().c_str());
if(reply_ev->forward){
std::map<int,AmSipRequest>::iterator t_req =
recvd_req.find(reply_ev->reply.cseq);
if (t_req != recvd_req.end()) {
if ((reply_ev->reply.code >= 300) && (reply_ev->reply.code <= 305) &&
!reply_ev->reply.contact.empty()) {
// relay with Contact in 300 - 305 redirect messages
AmSipReply n_reply(reply_ev->reply);
n_reply.hdrs+=SIP_HDR_COLSP(SIP_HDR_CONTACT) +
reply_ev->reply.contact+ CRLF;
if(relaySip(t_req->second,n_reply) < 0) {
terminateOtherLeg();
terminateLeg();
}
} else {
// relay response
if(relaySip(t_req->second,reply_ev->reply) < 0) {
terminateOtherLeg();
terminateLeg();
}
}
} else {
DBG("Cannot relay reply: request already replied"
" (code=%u;cseq=%u;call-id=%s)",
reply_ev->reply.code, reply_ev->reply.cseq,
reply_ev->reply.callid.c_str());
}
} else {
// check whether not-forwarded (locally initiated)
// INV/UPD transaction changed session in other leg
if (SIP_IS_200_CLASS(reply_ev->reply.code) &&
(!reply_ev->reply.body.empty()) &&
(reply_ev->reply.cseq_method == SIP_METH_INVITE ||
reply_ev->reply.cseq_method == SIP_METH_UPDATE)) {
if (updateSessionDescription(reply_ev->reply.body)) {
if (reply_ev->reply.cseq != est_invite_cseq) {
if (dlg->getUACInvTransPending()) {
DBG("changed session, but UAC INVITE trans pending\n");
// todo(?): save until trans is finished?
return;
}
DBG("session description changed - refreshing\n");
sendEstablishedReInvite();
} else {
DBG("reply to establishing INVITE request - not refreshing\n");
}
}
}
}
}
return;
case B2BTerminateLeg:
DBG("terminateLeg()\n");
terminateLeg();
break;
}
//ERROR("unknown event caught\n");
}
void AmB2BCallerSession::onCancel(const AmSipRequest& req)
{
terminateOtherLeg();
terminateLeg();
}
void AmB2BCallerSession::onB2BEvent(B2BEvent* ev)
{
bool processed = false;
if(ev->event_id == B2BSipReply){
AmSipReply& reply = ((B2BSipReplyEvent*)ev)->reply;
if(getOtherId().empty()){
//DBG("Discarding B2BSipReply from other leg (other_id empty)\n");
DBG("B2BSipReply: other_id empty ("
"reply code=%i; method=%s; callid=%s; from_tag=%s; "
"to_tag=%s; cseq=%i)\n",
reply.code,reply.cseq_method.c_str(),reply.callid.c_str(),reply.from_tag.c_str(),
reply.to_tag.c_str(),reply.cseq);
//return;
}
else if(getOtherId() != reply.from_tag){// was: local_tag
DBG("Dialog mismatch! (oi=%s;ft=%s)\n",
getOtherId().c_str(),reply.from_tag.c_str());
return;
}
DBG("%u %s reply received from other leg\n", reply.code, reply.reason.c_str());
switch(callee_status){
case NoReply:
case Ringing:
if (reply.cseq == invite_req.cseq) {
if (reply.code < 200) {
if ((!sip_relay_only) &&
(reply.code>=180 && reply.code<=183 && (!reply.body.empty()))) {
// save early media SDP
updateSessionDescription(reply.body);
if (sip_relay_early_media_sdp) {
if (reinviteCaller(reply)) {
ERROR("re-INVITEing caller for early session failed - "
"stopping this and other leg\n");
terminateOtherLeg();
terminateLeg();
break;
}
}
}
callee_status = Ringing;
} else if(reply.code < 300){
callee_status = Connected;
DBG("setting callee status to connected\n");
if (!sip_relay_only) {
DBG("received 200 class reply to establishing INVITE: "
"switching to SIP relay only mode, sending re-INVITE to caller\n");
sip_relay_only = true;
AmSipReply n_reply = reply;
if (n_reply.body.empty() && !established_body.empty()) {
DBG("callee FR without SDP, using provisional response's (18x) one\n");
n_reply.body = established_body;
}
if (reinviteCaller(n_reply)) {
ERROR("re-INVITEing caller failed - stopping this and other leg\n");
terminateOtherLeg();
terminateLeg();
}
}
} else {
// DBG("received %i from other leg: other_id=%s; reply.local_tag=%s\n",
// reply.code,other_id.c_str(),reply.local_tag.c_str());
// TODO: terminated my own leg instead? (+ clear_other())
terminateOtherLeg();
}
processed = onOtherReply(reply);
}
break;
default:
DBG("reply from callee: %u %s\n",reply.code,reply.reason.c_str());
break;
}
}
if (!processed)
AmB2BSession::onB2BEvent(ev);
}
void AmB2ABSession::onBye(const AmSipRequest& req) {
terminateOtherLeg();
disconnectSession();
setStopped();
}
