forked from Disroot/gpg-lacre
52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
"""A cache of OpenPGP keys known to Lacre."""
|
|
|
|
import lacre.text as text
|
|
|
|
import GnuPG
|
|
|
|
|
|
class KeyCache:
|
|
"""A store for OpenPGP keys.
|
|
|
|
Key case is sanitised while loading from GnuPG if so
|
|
configured. See mail_case_insensitive parameter in section
|
|
[default].
|
|
"""
|
|
|
|
def __init__(self):
|
|
"""Initialise an empty cache."""
|
|
self._keys = dict()
|
|
|
|
def __getitem__(self, email):
|
|
return self._keys[email]
|
|
|
|
def __setitem__(self, email, fingerprint):
|
|
self._keys[email] = fingerprint
|
|
|
|
def __contains__(self, fingerprint):
|
|
"""Check if the given fingerprint is assigned to an email."""
|
|
# This method has to be present for KeyCache to be a dict substitute.
|
|
# See mailgate, function _identify_gpg_recipients.
|
|
return fingerprint in self._keys
|
|
|
|
def has_email(self, email):
|
|
return email in self._keys.values()
|
|
|
|
def load_keyring(self, keyhome: str):
|
|
"""Add all identities from keyring stored in KEYHOME."""
|
|
self.extend_keyring(GnuPG.public_keys(keyhome))
|
|
|
|
def replace_keyring(self, keys: dict):
|
|
"""Overwrite previously stored key cache with KEYS."""
|
|
for fingerprint in keys:
|
|
keys[fingerprint] = text.sanitize_case_sense(keys[fingerprint])
|
|
|
|
self._keys = keys
|
|
|
|
def extend_keyring(self, keys: dict):
|
|
"""Add all keys from KEYS."""
|
|
for fingerprint in keys:
|
|
keys[fingerprint] = text.sanitize_case_sense(keys[fingerprint])
|
|
|
|
self._keys.update(keys)
|