// Disconnects a session by sending hangup command to freeswitch
func (sm *FSSessionManager) DisconnectSession(ev engine.Event, connId, notify string) error {
if _, err := sm.conns[connId].SendApiCmd(fmt.Sprintf("uuid_setvar %s cgr_notify %s\n\n", ev.GetUUID(), notify)); err != nil {
utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not send disconect api notification to freeswitch, error: <%s>, connId: %s", err.Error(), connId))
return err
}
if notify == INSUFFICIENT_FUNDS {
if len(sm.cfg.EmptyBalanceContext) != 0 {
if _, err := sm.conns[connId].SendApiCmd(fmt.Sprintf("uuid_transfer %s %s %s\n\n", ev.GetUUID(), ev.GetCallDestNr(utils.META_DEFAULT), sm.cfg.EmptyBalanceContext)); err != nil {
utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not transfer the call to empty balance context, error: <%s>, connId: %s", err.Error(), connId))
return err
}
return nil
} else if len(sm.cfg.EmptyBalanceAnnFile) != 0 {
if _, err := sm.conns[connId].SendApiCmd(fmt.Sprintf("uuid_broadcast %s playback!manager_request::%s aleg\n\n", ev.GetUUID(), sm.cfg.EmptyBalanceAnnFile)); err != nil {
utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not send uuid_broadcast to freeswitch, error: <%s>, connId: %s", err.Error(), connId))
return err
}
return nil
}
}
if err := sm.conns[connId].SendMsgCmd(ev.GetUUID(), map[string]string{"call-command": "hangup", "hangup-cause": "MANAGER_REQUEST"}); err != nil {
utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not send disconect msg to freeswitch, error: <%s>, connId: %s", err.Error(), connId))
return err
}
return nil
}
func (self *KamailioSessionManager) DisconnectSession(ev engine.Event, connId, notify string) error {
sessionIds := ev.GetSessionIds()
disconnectEv := &KamSessionDisconnect{Event: CGR_SESSION_DISCONNECT, HashEntry: sessionIds[0], HashId: sessionIds[1], Reason: notify}
if err := self.conns[connId].Send(disconnectEv.String()); err != nil {
utils.Logger.Err(fmt.Sprintf("<SM-Kamailio> Failed sending disconnect request, error %s, connection id: %s", err.Error(), connId))
return err
}
return nil
}
func (sm *FSSessionManager) onChannelAnswer(ev engine.Event, connId string) {
if ev.GetReqType(utils.META_DEFAULT) == utils.META_NONE { // Do not process this request
return
}
if ev.MissingParameter() {
sm.DisconnectSession(ev, connId, MISSING_PARAMETER)
}
s := NewSession(ev, connId, sm)
if s != nil {
sm.sessions = append(sm.sessions, s)
}
}
// Creates a new session and in case of prepaid starts the debit loop for each of the session runs individually
func NewSession(ev engine.Event, connId string, sm SessionManager) *Session {
s := &Session{eventStart: ev,
stopDebit: make(chan struct{}),
sessionManager: sm,
connId: connId,
}
if err := sm.Rater().Call("Responder.GetSessionRuns", ev.AsStoredCdr(s.sessionManager.Timezone()), &s.sessionRuns); err != nil || len(s.sessionRuns) == 0 {
return nil
}
for runIdx := range s.sessionRuns {
go s.debitLoop(runIdx) // Send index of the just appended sessionRun
}
return s
}
func (sm *FSSessionManager) onChannelHangupComplete(ev engine.Event) {
if ev.GetReqType(utils.META_DEFAULT) == utils.META_NONE { // Do not process this request
return
}
var s *Session
for i := 0; i < 2; i++ { // Protect us against concurrency, wait a couple of seconds for the answer to be populated before we process hangup
s = sm.sessions.getSession(ev.GetUUID())
if s != nil {
break
}
time.Sleep(time.Duration(i+1) * time.Second)
}
if s != nil { // Handled by us, cleanup here
if err := sm.sessions.removeSession(s, ev); err != nil {
utils.Logger.Err(err.Error())
}
}
if sm.cfg.CreateCdr {
sm.ProcessCdr(ev.AsStoredCdr(config.CgrConfig().DefaultTimezone))
}
var reply string
attrRU := utils.AttrRLsResourceUsage{
ResourceUsageID: ev.GetUUID(),
Event: ev.(FSEvent).AsMapStringInterface(sm.timezone),
RequestedUnits: 1,
}
if sm.rls != nil {
if err := sm.rls.Call("RLsV1.TerminateResourceUsage", attrRU, &reply); err != nil {
utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> RLs API error: %s", err.Error()))
}
}
}
// Disconnects the session
func (osm *OsipsSessionManager) DisconnectSession(ev engine.Event, connId, notify string) error {
sessionIds := ev.GetSessionIds()
if len(sessionIds) != 2 {
errMsg := fmt.Sprintf("Failed disconnecting session for event: %+v, notify: %s, dialogId: %v", ev, notify, sessionIds)
utils.Logger.Err(fmt.Sprintf("<SM-OpenSIPS> " + errMsg))
return errors.New(errMsg)
}
cmd := fmt.Sprintf(":dlg_end_dlg:\n%s\n%s\n\n", sessionIds[0], sessionIds[1])
if reply, err := osm.miConn.SendCommand([]byte(cmd)); err != nil {
utils.Logger.Err(fmt.Sprintf("<SM-OpenSIPS> Failed disconnecting session for event: %+v, notify: %s, dialogId: %v, error: <%s>", ev, notify, sessionIds, err))
return err
} else if !bytes.HasPrefix(reply, []byte("200 OK")) {
errStr := fmt.Sprintf("Failed disconnecting session for event: %+v, notify: %s, dialogId: %v", ev, notify, sessionIds)
utils.Logger.Err("<SM-OpenSIPS> " + errStr)
return errors.New(errStr)
}
return nil
}
func (sm *FSSessionManager) onChannelHangupComplete(ev engine.Event) {
if ev.GetReqType(utils.META_DEFAULT) == utils.META_NONE { // Do not process this request
return
}
var s *Session
for i := 0; i < 2; i++ { // Protect us against concurrency, wait a couple of seconds for the answer to be populated before we process hangup
s = sm.sessions.getSession(ev.GetUUID())
if s != nil {
break
}
time.Sleep(time.Duration(i+1) * time.Second)
}
if s != nil { // Handled by us, cleanup here
if err := sm.sessions.removeSession(s, ev); err != nil {
utils.Logger.Err(err.Error())
}
}
if sm.cfg.CreateCdr {
sm.ProcessCdr(ev.AsStoredCdr(config.CgrConfig().DefaultTimezone))
}
}
// Stops the debit loop
func (s *Session) Close(ev engine.Event) error {
close(s.stopDebit) // Close the channel so all the sessionRuns listening will be notified
if _, err := ev.GetEndTime(utils.META_DEFAULT, s.sessionManager.Timezone()); err != nil {
utils.Logger.Err("Error parsing event stop time.")
for idx := range s.sessionRuns {
s.sessionRuns[idx].CallDescriptor.TimeEnd = s.sessionRuns[idx].CallDescriptor.TimeStart.Add(s.sessionRuns[idx].CallDescriptor.DurationIndex)
}
}
// Costs refunds
for _, sr := range s.SessionRuns() {
if len(sr.CallCosts) == 0 {
continue // why would we have 0 callcosts
}
//utils.Logger.Debug(fmt.Sprintf("ALL CALLCOSTS: %s", utils.ToJSON(sr.CallCosts)))
lastCC := sr.CallCosts[len(sr.CallCosts)-1]
lastCC.Timespans.Decompress()
// put credit back
startTime, err := ev.GetAnswerTime(sr.DerivedCharger.AnswerTimeField, s.sessionManager.Timezone())
if err != nil {
utils.Logger.Crit("Error parsing prepaid call start time from event")
return err
}
duration, err := ev.GetDuration(sr.DerivedCharger.UsageField)
if err != nil {
utils.Logger.Crit(fmt.Sprintf("Error parsing call duration from event: %s", err.Error()))
return err
}
hangupTime := startTime.Add(duration)
//utils.Logger.Debug(fmt.Sprintf("BEFORE REFUND: %s", utils.ToJSON(lastCC)))
err = s.Refund(lastCC, hangupTime)
//utils.Logger.Debug(fmt.Sprintf("AFTER REFUND: %s", utils.ToJSON(lastCC)))
if err != nil {
return err
}
}
go s.SaveOperations()
return nil
}
func (sm *FSSessionManager) onChannelHangupComplete(ev engine.Event) {
if ev.GetReqType(utils.META_DEFAULT) == utils.META_NONE { // Do not process this request
return
}
if sm.cfg.CreateCdr {
go sm.ProcessCdr(ev.AsStoredCdr(config.CgrConfig().DefaultTimezone))
}
var s *Session
for i := 0; i < 2; i++ { // Protect us against concurrency, wait a couple of seconds for the answer to be populated before we process hangup
s = sm.GetSession(ev.GetUUID())
if s != nil {
break
}
time.Sleep(time.Duration(i+1) * time.Second)
}
if s == nil { // Not handled by us
return
}
sm.RemoveSession(s.eventStart.GetUUID()) // Unreference it early so we avoid concurrency
if err := s.Close(ev); err != nil { // Stop loop, refund advanced charges and save the costs deducted so far to database
utils.Logger.Err(err.Error())
}
}
func (sm *FSSessionManager) onChannelPark(ev engine.Event, connId string) {
fsev := ev.(FSEvent)
if ev.GetReqType(utils.META_DEFAULT) == utils.META_NONE || fsev[IGNOREPARK] == "true" { // Do not process this request
return
}
var maxCallDuration float64 // This will be the maximum duration this channel will be allowed to last
if err := sm.rater.GetDerivedMaxSessionTime(ev.AsStoredCdr(config.CgrConfig().DefaultTimezone), &maxCallDuration); err != nil {
utils.Logger.Err(fmt.Sprintf("<SM-FreeSWITCH> Could not get max session time for %s, error: %s", ev.GetUUID(), err.Error()))
}
if maxCallDuration != -1 { // For calls different than unlimited, set limits
maxCallDur := time.Duration(maxCallDuration)
if maxCallDur <= sm.cfg.MinCallDuration {
//utils.Logger.Info(fmt.Sprintf("Not enough credit for trasferring the call %s for %s.", ev.GetUUID(), cd.GetKey(cd.Subject)))
sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), INSUFFICIENT_FUNDS)
return
}
sm.setMaxCallDuration(ev.GetUUID(), connId, maxCallDur)
}
// ComputeLcr
if ev.ComputeLcr() {
cd, err := fsev.AsCallDescriptor()
if err != nil {
utils.Logger.Info(fmt.Sprintf("<SM-FreeSWITCH> LCR_PREPROCESS_ERROR: %s", err.Error()))
sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
return
}
var lcr engine.LCRCost
if err = sm.Rater().GetLCR(&engine.AttrGetLcr{CallDescriptor: cd}, &lcr); err != nil {
utils.Logger.Info(fmt.Sprintf("<SM-FreeSWITCH> LCR_API_ERROR: %s", err.Error()))
sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
}
if lcr.HasErrors() {
lcr.LogErrors()
sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
return
}
if supps, err := lcr.SuppliersSlice(); err != nil {
utils.Logger.Info(fmt.Sprintf("<SM-FreeSWITCH> LCR_ERROR: %s", err.Error()))
sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
return
} else {
fsArray := SliceAsFsArray(supps)
if _, err = sm.conns[connId].SendApiCmd(fmt.Sprintf("uuid_setvar %s %s %s\n\n", ev.GetUUID(), utils.CGR_SUPPLIERS, fsArray)); err != nil {
utils.Logger.Info(fmt.Sprintf("<SM-FreeSWITCH> LCR_ERROR: %s", err.Error()))
sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), SYSTEM_ERROR)
}
}
}
sm.unparkCall(ev.GetUUID(), connId, ev.GetCallDestNr(utils.META_DEFAULT), AUTH_OK)
}
// Queries LCR and sets the cgr_lcr channel variable
func (sm *FSSessionManager) setCgrLcr(ev engine.Event, connId string) error {
var lcrCost engine.LCRCost
startTime, err := ev.GetSetupTime(utils.META_DEFAULT, sm.timezone)
if err != nil {
return err
}
cd := &engine.CallDescriptor{
Direction: ev.GetDirection(utils.META_DEFAULT),
Tenant: ev.GetTenant(utils.META_DEFAULT),
Category: ev.GetCategory(utils.META_DEFAULT),
Subject: ev.GetSubject(utils.META_DEFAULT),
Account: ev.GetAccount(utils.META_DEFAULT),
Destination: ev.GetDestination(utils.META_DEFAULT),
TimeStart: startTime,
TimeEnd: startTime.Add(config.CgrConfig().MaxCallDuration),
}
if err := sm.rater.GetLCR(&engine.AttrGetLcr{CallDescriptor: cd}, &lcrCost); err != nil {
return err
}
supps := []string{}
for _, supplCost := range lcrCost.SupplierCosts {
if dtcs, err := utils.NewDTCSFromRPKey(supplCost.Supplier); err != nil {
return err
} else if len(dtcs.Subject) != 0 {
supps = append(supps, dtcs.Subject)
}
}
fsArray := SliceAsFsArray(supps)
if _, err = sm.conns[connId].SendApiCmd(fmt.Sprintf("uuid_setvar %s cgr_notify %s\n\n", ev.GetUUID(), fsArray)); err != nil {
return err
}
return nil
}