Subscribe to FS events from keyring directory using Python Watchdog and when a
modification is observed, reload the key cache.
Since we may receive more than one event about a single modification, keep
directory's last modification to recognise 'false positives'.
Use [default]cache_refresh_minutes configuration parameter to define periods
between cache reloads. After this number of minutes cache will be reloaded.
- Polish implementation of mail operations (lacre/mailop.py). Add two
strategies: InlineOpenPGPEncrypt and MimeOpenPGPEncrypt, to support two modes
of OpenPGP encryption.
- In delivery_plan, only use those strategies that actually make sense with
the recipients we'd got.
- Add flag_enabled predicate (lacre/config.py) to make configuration checks
easier / simpler.
- Handle TypeError errors in Advanced Filter, indicating a delivery failure
when they appear.
- Add type hints to some of the functions.
- Add a "mailop" module to define mail operations. Each should inherit from
MailOperation class (which just defines the contract).
- Make lacre.mailgate.delivery_plan always return KeepIntact strategy to have
a daemon that just forwards messages without modifying them.
- Add sample configuration.
- Include daemon configuration in mandatory parameter check.
Piotr F. Mieszkowski