Add optional on_login_success callback #90
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This adds a new `on_login_success` configuration option. If this option is set to a `Proc` and the login was successful, the `Proc` will be called in the context of the `RpiAuth::AuthController#callback` action, i.e. `current_user` will be available. This is intended to allow apps to record successful logins. I'm not convinced that using `instance_exec` is the most sensible approach, but I decided it was better to be consistent with the way the `success_redirect` option is implemented. If the `Proc` raises an exception, this will be rescued and the exception will be logged as a warning in the Rails log. This is so that the login will still complete successfully, even if there was a problem recording it. The immediate motivation for adding this is so we can record successful *student* logins in `experience-cs` in order to be able to calculate the "active users" metric described in this issue [1]. Unfortunately while this information is available in the `profile` app database for regular users; it's not available for student users. [1]: https://github.com/RaspberryPiFoundation/experience-cs/issues/727
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This adds a new
on_login_successconfiguration option. If this option is set to aProcand the login was successful, theProcwill be called in the context of theRpiAuth::AuthController#callbackaction, i.e.current_userwill be available. This is intended to allow apps to record successful logins.I'm not convinced that using
instance_execis the most sensible approach, but I decided it was better to be consistent with the way thesuccess_redirectoption is implemented.If the
Procraises an exception, this will be rescued and the exception will be logged as a warning in the Rails log. This is so that the login will still complete successfully, even if there was a problem recording it.The immediate motivation for adding this is so we can record successful student logins in
experience-csin order to be able to calculate the "active users" metric described in this issue. Unfortunately while this information is available in theprofileapp database for regular users; it's not available for student users.