[RADIATOR] "IgnoreIfMissing" required?

[Heikki Vatiainen]

On 14/08/2019 11.35, Alexander.Hartmaier at t-systems.com wrote:

> We have multiple AuthBys per handler, e.g. one FILE, three LDAP2, one SQL.
> As AuthBy LDAP2 returns a reject for both user not found and incorrect password we have configured AuthByPolicy ContinueUntilAccept in the Handler.
> The issue we have with this config is the logging: if a user enters an incorrect password and the user isn't found by the last AuthBy but one of the four previous ones, it is skipped and the last one returns 'no such user'.
> 
> We'd like to stop trying further AuthBys when one finds the user but the password is incorrect to make troubleshooting such issues easier.
> 
> I can't think if a way to use AcceptIfMissing in combination with AuthByPolicy to do this and think a IgnoreIfMissing would be helpful.
> 
> Any advise if that's possible without hooks?

Can't think a good way to do this without hooks.

With hooks I'd consider PostAuthHook within AuthBy LDAP2 to switch 
result argument to, for example, ignore if it looks like the user was 
not found.

A simple method could be to look at the reason. A more controlled method 
could be to use a PostSearchHook to add a marker attribute in $p when 
there was a result and user was found. The PostAuthHook could then use 
the presence of this attribute for deciding if the result should be changed.

In short: flag in PostSearchHook, act in PostAuthHook. All this within 
AuthBy LDAP2.

Thanks,
Heikki

-- 
Heikki Vatiainen <hvn at open.com.au>

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