In this PR we introduced a new setting `enforce_second_factor_on_external_auth` which disables enforce 2FA when the user is authenticated with an external provider.
https://github.com/discourse/discourse/pull/27506
However, with the first registration with an external provider, we authenticate the user right after activation. In that case, we need to also keep information that the user was authenticated with an external OAuth provider.
This commit adds token_hash and scopes columns to email_tokens table.
token_hash is a replacement for the token column to avoid storing email
tokens in plaintext as it can pose a security risk. The new scope column
ensures that email tokens cannot be used to perform a different action
than the one intended.
To sum up, this commit:
* Adds token_hash and scope to email_tokens
* Reuses code that schedules critical_user_email
* Refactors EmailToken.confirm and EmailToken.atomic_confirm methods
* Periodically cleans old, unconfirmed or expired email tokens
Previously we were checking truthiness in some places, and `== true` in
others. That can lead to some inconsistent UX where the interface says
the email is valid, but account creation fails.
This commit ensures values are boolean when set, and raises an error for
other value types.
If this safety check is triggered, it means the specific auth provider
needs to be updated to pass booleans.
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
