1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
# 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/>.
""""""
from mailman.mta.base import IndividualDelivery
from mailman.mta.decorating import DecoratingMixin
from mailman.mta.personalized import PersonalizedMixin
from mailman.mta.verp import VERPMixin
from public import public
from mailman_pgp.model.address import PGPAddress
from mailman_pgp.model.list import PGPMailingList
from mailman_pgp.pgp.mime import MIMEWrapper
from mailman_pgp.utils.email import overwrite_message
class PGPIndividualMixin:
def sign_encrypt(self, mlist, msg, msgdata):
"""
:param mlist:
:type mlist: mailman.model.mailinglist.MailingList
:param msg:
:type msg: mailman.email.message.Message
:param msgdata:
:type msgdata: dict
"""
pgp_list = PGPMailingList.for_list(mlist)
if not pgp_list:
return
if not pgp_list.encrypt_outgoing and not pgp_list.sign_outgoing:
# nothing to do
return
recipient = msgdata['recipient']
pgp_address = PGPAddress.for_email(recipient)
if pgp_address is None:
msgdata['no_deliver'] = True
return
if pgp_address.key is None or not pgp_address.key_confirmed:
msgdata['no_deliver'] = True
return
key = pgp_address.key
wrapped = MIMEWrapper(msg)
out = msg
if pgp_list.sign_outgoing:
if pgp_list.encrypt_outgoing:
out = wrapped.sign_encrypt(pgp_list.key, key, pgp_list.pubkey)
else:
out = wrapped.sign(pgp_list.key)
else:
if pgp_list.encrypt_outgoing:
out = wrapped.encrypt(key, pgp_list.pubkey)
if out is not msg:
overwrite_message(out, msg)
@public
class PGPPersonalizedDelivery(IndividualDelivery, VERPMixin, DecoratingMixin,
PersonalizedMixin, PGPIndividualMixin):
""""""
def __init__(self):
super().__init__()
self.callbacks.extend([
self.avoid_duplicates,
self.decorate,
self.personalize_to,
self.sign_encrypt
])
def _deliver_to_recipients(self, mlist, msg, msgdata, recipients):
if msgdata.get('no_deliver', False):
return dict((recipient, (444, BaseException)) for recipient in
recipients)
return super()._deliver_to_recipients(mlist, msg, msgdata, recipients)
|
