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
- Show old and new email address during the process
- Ensure correct user is logged on when attempting to make email changes
- Support reloading a page during the email reset process without resubmit
of form
- Improve tests
- Fixed issue where redirect back to site was not linking correctly in
subfolder setups
Internal refactor of single action into 4 distinct actions that are simpler
to reason about.
This also removes the step that logs on an account after you confirm an
email change, since it is no longer needed which leaves us with safer
internals.
This left me no choice but to amend translations cause the old route was
removed.
