The fix for SDK SipSnoop example:
The reason that the example does not compile was that "Microsoft.Rtc.Sip.ResponseReceivedEventArgs" & "Microsoft.Rtc.Sip.RequestReceivedEventArgs" types cannot be casted to "System.EventArgs" in C# code.
Maybe it is an .Net version issue (I use VS 2008 sp1 on vista) - for me it does not matter I simply needed SipSnoop running (right now!).
To fix errors :
-
create new C# forms application SipSnoop (.net 2.0)
-
change name of form1 to SipSnoop
-
close solution
-
delete program.cs & both form files
-
copy SipSnoop.cs, SessionManager.cs & Utils.cs to solution directory
-
reopen solution
-
set references to needed assembles (ServerAgent.dll & System.Management)
-
add existing SessionManager.cs & Utils.cs to solution
Now you can fix the errors & try to compile the app to satisfy the compiler...
In my environment C# refused to cast - so I splited event handler StateChangeListener... to 2 (3) different voids with different params (one for request one for responce & one more for notifications - unused),
In this way you do not need the cast at all, these events are called internally in SipSnooper,
the processing of these events, made in SipSnooper, is in any case splitted into two parts in one void - so splitting to two voids does not harm the logic...
The SessionManager.cs fix:
You need to fix delegate for events
//public
delegate void StateChangeListener(EventArgs) to
to
public
delegate void StateChangeListenerRequest(RequestReceivedEventArgs args);
public delegate void StateChangeListenerResponce(ResponseReceivedEventArgs args);
public delegate void StateChangeListenerNotification(NotificationReceivedEventArgs args); //(not obligatory - to sniff notifications)
also you 2 or 3 listeners
//public StateChangeListener StateChangeListeners;
to
public StateChangeListenerRequest StateRequestListeners;
public StateChangeListenerResponce StateResponceListeners;
public StateChangeListenerNotification StateNotificationListeners; //(not obligatory - to sniff notifications)
Fix their calls in Request and Responce event voids to match the "e" parameter type respectively:
this.StateChangeListeners(e);
=>
this.StateRequestListeners(e) & this.StateResponceListeners(e)
In SipSnoop.cs you must fix the events assignment (now we have 2 or even 3 different events)
//sessionManager.StateChangeListeners +=
// new SessionManager.StateChangeListener(this.StateChangeListener);
To
sessionManager.StateRequestListeners +=
new SessionManager.StateChangeListenerRequest(this.StateChangeListenerRequest);
sessionManager.StateResponceListeners +=
new SessionManager.StateChangeListenerResponce(this.StateChangeListenerResponce);
sessionManager.StateNotificationListeners +=
new SessionManager.StateChangeListenerNotification(this.StateChangeListenerNotification); // unused
& split the event handling void
//protected virtual void StateChangeListener(EventArgs args)
to 2 or 3 event handling voids (as in prototypes)...
protected virtual void StateChangeListenerRequest(RequestReceivedEventArgs args)
{
lock (this)
{
if (connected == false) return; //ignore spurious event
RequestReceivedEventArgs reqArgs = args;
if (reqArgs != null)
{
Request request = reqArgs.Request;
if (request != null && CanShow(request.StandardMethod))
{ DisplayRequest(request, reqArgs.Parameters); }
return;
}
}
}
// & responce
protected virtual void StateChangeListenerResponce(ResponseReceivedEventArgs args)
{
lock (this)
{
if (connected == false) return; //ignore spurious event
ResponseReceivedEventArgs respArgs = args as ResponseReceivedEventArgs;
if (respArgs != null)
{
Response response = respArgs.Response;
Request request = respArgs.ClientTransaction.ServerTransaction.Request;
Debug.Assert(response != null && request != null);
if (CanShow(response.StatusClass) && CanShow(request.StandardMethod))
{
DisplayResponse(response, respArgs.Parameters);
}
return;
}
// Else Ignore notifications.
}
}
The third event handler for notification is generally not needed (by design sipsnoop skips notifications), so You are done.
For sure, maybe there is a more simple fix - I don't now. But this way sipsnoop is running...
