public async Task <IHttpActionResult> Post(KamailioSipEvent sipEvent)
{
if (!_settingsManager.UseSipEvent)
{
if (log.IsTraceEnabled)
{
log.Warn("Receiving event but receiver is not ON for 'UseSipEvent'");
}
return(Ok());
}
if (log.IsTraceEnabled)
{
Stream stream = await Request.Content.ReadAsStreamAsync();
stream.Seek(0, SeekOrigin.Begin);
var body = await Request.Content.ReadAsStringAsync();
log.Trace($"Request {Request} Body {body}");
}
using (new TimeMeasurer("Incoming SIP event"))
{
if (sipEvent == null)
{
log.Warn("SIP event controller received empty data");
return(BadRequest());
}
var sipMessage = _sipEventParser.Parse(sipEvent);
if (sipMessage == null)
{
log.Warn("Incorrect SIP message format: ", sipEvent);
return(BadRequest());
}
SipEventHandlerResult result = _sipMessageManager.HandleSipMessage(sipMessage);
if (log.IsDebugEnabled)
{
log.Debug("SIP message, Handled: {0}, Parsed: {1}, Result: {2}", sipEvent.ToLogString(), sipMessage.ToDebugString(), result?.ChangeStatus);
}
if (result == null)
{
log.Warn("Kamailio message was handled but result was null");
}
else if (result.ChangeStatus != SipEventChangeStatus.NothingChanged)
{
_guiHubUpdater.Update(result); // First web gui
_statusHubUpdater.Update(result); // Then codec status to external clients
}
return(Ok());
}
}
private SipRegistrationExpireMessage ParseRegExpire(KamailioSipEvent kamailioData)
{
var expire = new SipRegistrationExpireMessage()
{
SipAddress = new SipUri(kamailioData.FromUri),
ReceivedIp = kamailioData.Ip.SenderIp
};
return(expire);
}
public SipMessageBase Parse(KamailioSipEvent sipEvent)
{
switch (sipEvent.Event)
{
case SipEventType.Register:
return(ParseRegistration(sipEvent));
case SipEventType.Dialog:
return(ParseDialog(sipEvent));
case SipEventType.RegExpire:
return(ParseRegExpire(sipEvent));
}
return(null);
}
private SipRegistrationMessage ParseRegistration(KamailioSipEvent kamailioData)
{
var registration = new SipRegistrationMessage()
{
Sip = new SipUri(kamailioData.FromUri),
Username = kamailioData.AuthUser, // TODO: Obsolete. To be removed.
FromDisplayName = ParseDisplayName(kamailioData.FromDisplayName),
ToDisplayName = ParseDisplayName(kamailioData.ToDisplayName),
UserAgent = kamailioData.UserAgentHeader,
Registrar = kamailioData.Registrar,
RegType = kamailioData.RegType,
Ip = kamailioData.Ip.SenderIp,
Port = kamailioData.Ip.SenderPort,
Expires = kamailioData.Expires,
UnixTimeStamp = kamailioData.TimeStamp
};
return(registration);
}
private SipDialogMessage ParseDialog(KamailioSipEvent kamailioData)
{
if (!Enum.TryParse(kamailioData.DialogState, true, out DialogStatus dialogStatus))
{
log.Warn($"Dialog state field = {kamailioData.DialogState} of Kamailio dialog message");
return(null);
}
var dialog = new SipDialogMessage
{
Status = dialogStatus,
CallId = kamailioData.CallId,
HashId = kamailioData.DialogHashId,
HashEntry = kamailioData.DialogHashEntry,
FromDisplayName = ParseDisplayName(kamailioData.FromDisplayName),
ToDisplayName = ParseDisplayName(kamailioData.ToDisplayName),
FromSipUri = new SipUri(kamailioData.FromUri),
ToSipUri = new SipUri(kamailioData.RequestUri), //new SipUri(kamailioData.ToUri),
FromTag = kamailioData.FromTag,
ToTag = kamailioData.ToTag,
};
return(dialog);
}
