Identityserver4: Decrease log level for failed user login

[RakhmatovR]

Issue

There was an issue in Identity Server 3 about log level in TokenRequestValidator. I have the same problem at Identity Server 4, and it would be nice to decrease log level about failed user login to Warning or lower. Or maybe someone can suggest how to do it from my side?

[leastprivilege]

Which exact message are we looking for?

[RakhmatovR]

@leastprivilege
https://github.com/IdentityServer/IdentityServer4/blob/dev/src/IdentityServer4/Validation/TokenRequestValidator.cs

420 line:

LogError("User authentication failed: {error}", errorDescription ?? resourceOwnerContext.Result.Error);

[leastprivilege]

https://github.com/IdentityServer/IdentityServer4/blob/3d738e96263d3b2728bdde9474715d9c392b2875/src/IdentityServer4/Validation/TokenRequestValidator.cs#L413-L420

OK - we'll discuss this. @brockallen

[ssarj]

It would be neat to dial down some of the messages in the TokenValidator as well; I'd not have things like 'token expired' as errors.

Thanks!

[lock[bot]]

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