coder/coderd/externalauth
Cian Johnston e744cde86f fix(coderd): ensure that clearing invalid oauth refresh tokens works with dbcrypt (#15721)
https://github.com/coder/coder/pull/15608 introduced a buggy behaviour
with dbcrypt enabled.
When clearing an oauth refresh token, we had been setting the value to
the empty string.
The database encryption package considers decrypting an empty string to
be an error, as an empty encrypted string value will still have a nonce
associated with it and thus not actually be empty when stored at rest.

Instead of 'deleting' the refresh token, 'update' it to be the empty
string.
This plays nicely with dbcrypt.

It also adds a 'utility test' in the dbcrypt package to help encrypt a
value. This was useful when manually fixing users affected by this bug
on our dogfood instance.
2024-12-03 13:26:31 -06:00
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