1# Copyright (C) 2018 Philipp Hörist <philipp AT hoerist.com>
2#
3# This file is part of nbxmpp.
4#
5# This program is free software; you can redistribute it and/or
6# modify it under the terms of the GNU General Public License
7# as published by the Free Software Foundation; either version 3
8# of the License, or (at your option) any later version.
9#
10# This program is distributed in the hope that it will be useful,
11# but WITHOUT ANY WARRANTY; without even the implied warranty of
12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13# GNU General Public License for more details.
14#
15# You should have received a copy of the GNU General Public License
16# along with this program; If not, see <http://www.gnu.org/licenses/>.
17
18from nbxmpp.namespaces import Namespace
19from nbxmpp.structs import StanzaHandler
20from nbxmpp.structs import EMEData
21from nbxmpp.modules.base import BaseModule
22
23
24class EME(BaseModule):
25    def __init__(self, client):
26        BaseModule.__init__(self, client)
27
28        self._client = client
29        self.handlers = [
30            StanzaHandler(name='message',
31                          callback=self._process_eme,
32                          ns=Namespace.EME,
33                          priority=40)
34        ]
35
36    def _process_eme(self, _client, stanza, properties):
37        encryption = stanza.getTag('encryption', namespace=Namespace.EME)
38        if encryption is None:
39            return
40
41        name = encryption.getAttr('name')
42        namespace = encryption.getAttr('namespace')
43        if namespace is None:
44            self._log.warning('No namespace on message')
45            return
46
47        properties.eme = EMEData(name=name, namespace=namespace)
48        self._log.info('Found data: %s', properties.eme)
49