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
|
# Slixmpp: The Slick XMPP Library
# Copyright (C) 2016 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
# This file is part of Slixmpp.
# See the file LICENSE for copying permission.
import logging
import slixmpp
from slixmpp.stanza import Message
from slixmpp.xmlstream.handler import Callback
from slixmpp.xmlstream.matcher import StanzaPath
from slixmpp.xmlstream import register_stanza_plugin, ElementBase, ET
from slixmpp.plugins import BasePlugin
from slixmpp.plugins.xep_0380 import stanza, Encryption
log = logging.getLogger(__name__)
class XEP_0380(BasePlugin):
"""
XEP-0380: Explicit Message Encryption
"""
name = 'xep_0380'
description = 'XEP-0380: Explicit Message Encryption'
dependencies = {'xep_0030'}
default_config = {
'template': 'This message is encrypted with {name} ({namespace})',
}
mechanisms = {
'jabber:x:encrypted': 'Legacy OpenPGP',
'urn:xmpp:ox:0': 'OpenPGP for XMPP',
'urn:xmpp:otr:0': 'OTR',
'eu.siacs.conversations.axolotl': 'Legacy OMEMO',
'urn:xmpp:omemo:0': 'OMEMO',
}
def plugin_init(self):
self.xmpp.register_handler(
Callback('Explicit Message Encryption',
StanzaPath('message/eme'),
self._handle_eme))
register_stanza_plugin(Message, Encryption)
def session_bind(self, jid):
self.xmpp.plugin['xep_0030'].add_feature(Encryption.namespace)
def has_eme(self, msg):
return msg.xml.find('{%s}encryption' % Encryption.namespace) is not None
def add_eme(self, msg: Message, namespace: str) -> Message:
msg['eme']['name'] = self.mechanisms[namespace]
msg['eme']['namespace'] = namespace
return msg
def replace_body_with_eme(self, msg):
eme = msg['eme']
namespace = eme['namespace']
name = self.mechanisms[namespace] if namespace in self.mechanisms else eme['name']
body = self.config['template'].format(name=name, namespace=namespace)
msg['body'] = body
def _handle_eme(self, msg):
self.xmpp.event('message_encryption', msg)
|
