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