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# Copyright (C) 2017 Jan Jancar
#
# This file is a part of the Mailman PGP plugin.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <http://www.gnu.org/licenses/>.
"""Model for PGP enabled addresses."""
from os.path import exists, isfile, join
from mailman.database.types import SAUnicode
from mailman.interfaces.usermanager import IUserManager
from pgpy import PGPKey
from sqlalchemy import Column, Integer
from sqlalchemy.orm import reconstructor
from zope.component import getUtility
from mailman_pgp.config import config
from mailman_pgp.model.base import Base
class PGPAddress(Base):
"""A PGP enabled address."""
__tablename__ = 'pgp_addresses'
id = Column(Integer, primary_key=True)
email = Column(SAUnicode, index=True)
key_fingerprint = Column(SAUnicode)
def __init__(self, address):
super().__init__()
self.email = address.email
self._init()
self._address = address
@reconstructor
def _init(self):
self._address = None
self._key = None
@property
def key(self):
"""
:return:
:rtype: pgpy.PGPKey
"""
if self.key_fingerprint is None:
return None
if self._key is None:
if exists(self.key_path) and isfile(self.key_path):
self._key, _ = PGPKey.from_file(self.key_path)
return self._key
@property
def key_path(self):
"""
:return:
:rtype: str
"""
if self.key_fingerprint is None:
return None
return join(config.pgp.keydir_config['user_keydir'],
self.key_fingerprint + '.asc')
@property
def address(self):
"""
:return:
:rtype: mailman.model.address.Address
"""
if self._address is None:
self._address = getUtility(IUserManager).get_address(self.email)
return self._address
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