[bug] success field never emited in auth_request_finished event

[Jean-Daniel Dupas]

An other issue is that when 'request->passdb_success' is FALSE, the request fails but the error field is not set (as it is only set when request->failure is TRUE), which make it hard to create metrics for failed login attempts.

We have (assuming success were working as expected):
- success = yes -> means auth OK
- error is present -> means request failed for some reasons
- neither success nor error is present -> means requests failed for other reasons.

As we can't create metric filter testing field absence, getting the count of failed requests would mean create 2 metrics (one for success, one for all) and diff the 2 to get the count of failed attempts.


> Le 12 juil. 2019 à 15:31, Jean-Daniel Dupas via dovecot <dovecot at dovecot.org> a écrit :
> 
> Hi,
> 
> I'm playing with the new events, and encounter some issues:
> 
> First the 'auth_request_finished' event is documented as having a 'successful' field, but in the code, the field is defined as 'success' (e->add_str("success", "yes")).
> 
> But more important, in the function "auth_request_success_continue()" (auth/auth-request.c:288), "auth_request_log_finished(request)"  is call (line 303) before updating the request status: "request->successful = TRUE" (line 312)
> 
> So the log function never set the success field to "yes" as at this point request->successful is still false.
> 
> Jean-Daniel
> 
> 
> 
>