Mercurial > libervia-backend

annotate libervia/backend/plugins/plugin_xep_0391.py @ 4095:684ba556a617

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core (memory/sqla_mapping): fix legacy pickled values: folloing packages refactoring, legacy pickled values could not be unpickled (due to use of old classes). This temporary workaround fix it, but the right thing to do will be to move from pickle to JSON at some point.
author Goffi <goffi@goffi.org>
date Mon, 12 Jun 2023 14:57:27 +0200
parents 4b842c1fb686
children 1b5cf2ee1d86
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3969
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
1 #!/usr/bin/env python3
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
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2
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
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3 # Libervia plugin for Jingle Encrypted Transports
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
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4 # Copyright (C) 2009-2022 Jérôme Poisson (goffi@goffi.org)
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parents:
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5
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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parents:
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6 # This program is free software: you can redistribute it and/or modify
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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7 # it under the terms of the GNU Affero General Public License as published by
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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parents:
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8 # the Free Software Foundation, either version 3 of the License, or
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
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9 # (at your option) any later version.
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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10
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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11 # This program is distributed in the hope that it will be useful,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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14 # GNU Affero General Public License for more details.
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
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15
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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16 # You should have received a copy of the GNU Affero General Public License
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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18
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19 from base64 import b64encode
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20 from functools import partial
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21 import io
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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22 from typing import Any, Callable, Dict, List, Optional, Tuple, Union
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23
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24 from twisted.words.protocols.jabber import error, jid, xmlstream
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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25 from twisted.words.xish import domish
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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26 from wokkel import disco, iwokkel
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27 from zope.interface import implementer
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28 from cryptography.exceptions import AlreadyFinalized
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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29 from cryptography.hazmat import backends
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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30 from cryptography.hazmat.primitives import ciphers
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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31 from cryptography.hazmat.primitives.ciphers import Cipher, CipherContext, modes
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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32 from cryptography.hazmat.primitives.padding import PKCS7, PaddingContext
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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33
4071
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parents: 4037
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34 from libervia.backend.core import exceptions
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35 from libervia.backend.core.constants import Const as C
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36 from libervia.backend.core.core_types import SatXMPPEntity
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37 from libervia.backend.core.i18n import _
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38 from libervia.backend.core.log import getLogger
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39 from libervia.backend.tools import xml_tools
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8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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40
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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41 try:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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42 import oldmemo
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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43 import oldmemo.etree
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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44 except ImportError as import_error:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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45 raise exceptions.MissingModule(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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46 "You are missing one or more package required by the OMEMO plugin. Please"
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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47 " download/install the pip packages 'oldmemo'."
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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48 ) from import_error
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49
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50
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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51 log = getLogger(__name__)
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52
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53 IMPORT_NAME = "XEP-0391"
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54
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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55 PLUGIN_INFO = {
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56 C.PI_NAME: "Jingle Encrypted Transports",
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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57 C.PI_IMPORT_NAME: IMPORT_NAME,
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58 C.PI_TYPE: C.PLUG_TYPE_XEP,
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59 C.PI_MODES: C.PLUG_MODE_BOTH,
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60 C.PI_PROTOCOLS: ["XEP-0391", "XEP-0396"],
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61 C.PI_DEPENDENCIES: ["XEP-0166", "XEP-0384"],
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62 C.PI_MAIN: "JET",
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63 C.PI_HANDLER: "yes",
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64 C.PI_DESCRIPTION: _("""End-to-end encryption of Jingle transports"""),
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65 }
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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66
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67 NS_JET = "urn:xmpp:jingle:jet:0"
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68 NS_JET_OMEMO = "urn:xmpp:jingle:jet-omemo:0"
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69
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70
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71 class JET:
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72 namespace = NS_JET
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73
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74 def __init__(self, host):
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75 log.info(_("XEP-0391 (Pubsub Attachments) plugin initialization"))
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76 host.register_namespace("jet", NS_JET)
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77 self.host = host
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78 self._o = host.plugins["XEP-0384"]
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79 self._j = host.plugins["XEP-0166"]
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parents:
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80 host.trigger.add(
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81 "XEP-0166_initiate_elt_built",
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82 self._on_initiate_elt_build
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83 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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parents:
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84 host.trigger.add(
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parents:
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85 "XEP-0166_on_session_initiate",
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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parents:
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86 self._on_session_initiate
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87 )
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parents:
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88 host.trigger.add(
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parents:
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89 "XEP-0234_jingle_handler",
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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parents:
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90 self._add_encryption_filter
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parents:
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91 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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parents:
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92 host.trigger.add(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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parents:
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93 "XEP-0234_file_receiving_request_conf",
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
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parents:
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94 self._add_encryption_filter
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parents:
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95 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
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96
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97 def get_handler(self, client):
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98 return JET_Handler()
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parents:
diff changeset
99
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
100 async def _on_initiate_elt_build(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
101 self,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
102 client: SatXMPPEntity,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
103 session: Dict[str, Any],
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
104 iq_elt: domish.Element,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
105 jingle_elt: domish.Element
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
106 ) -> bool:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
107 if client.encryption.get_namespace(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
108 session["peer_jid"].userhostJID()
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
109 ) != self._o.NS_OLDMEMO:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
110 return True
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
111 for content_elt in jingle_elt.elements(self._j.namespace, "content"):
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
112 content_data = session["contents"][content_elt["name"]]
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
113 security_elt = content_elt.addElement((NS_JET, "security"))
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
114 security_elt["name"] = content_elt["name"]
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
115 # XXX: for now only OLDMEMO is supported, thus we do it directly here. If some
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
116 # other are supported in the future, a plugin registering mechanism will be
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
117 # implemented.
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
118 cipher = "urn:xmpp:ciphers:aes-128-gcm-nopadding"
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
119 enc_type = "eu.siacs.conversations.axolotl"
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
120 security_elt["cipher"] = cipher
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
121 security_elt["type"] = enc_type
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
122 encryption_data = content_data["encryption"] = {
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
123 "cipher": cipher,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
124 "type": enc_type
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
125 }
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
126 session_manager = await self._o.get_session_manager(client.profile)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
127 try:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
128 messages, encryption_errors = await session_manager.encrypt(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
129 frozenset({session["peer_jid"].userhost()}),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
130 # the value seems to be the commonly used value
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
131 { self._o.NS_OLDMEMO: b" " },
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
132 backend_priority_order=[ self._o.NS_OLDMEMO ],
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
133 identifier = client.jid.userhost()
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
134 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
135 except Exception as e:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
136 log.error("Can't generate IV and keys: {e}")
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
137 raise e
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
138 message, plain_key_material = next(iter(messages.items()))
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
139 iv, key = message.content.initialization_vector, plain_key_material.key
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
140 content_data["encryption"].update({
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
141 "iv": iv,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
142 "key": key
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
143 })
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
144 encrypted_elt = xml_tools.et_elt_2_domish_elt(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
145 oldmemo.etree.serialize_message(message)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
146 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
147 security_elt.addChild(encrypted_elt)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
148 return True
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
149
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
150 async def _on_session_initiate(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
151 self,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
152 client: SatXMPPEntity,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
153 session: Dict[str, Any],
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
154 iq_elt: domish.Element,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
155 jingle_elt: domish.Element
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
156 ) -> bool:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
157 if client.encryption.get_namespace(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
158 session["peer_jid"].userhostJID()
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
159 ) != self._o.NS_OLDMEMO:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
160 return True
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
161 for content_elt in jingle_elt.elements(self._j.namespace, "content"):
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
162 content_data = session["contents"][content_elt["name"]]
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
163 security_elt = next(content_elt.elements(NS_JET, "security"), None)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
164 if security_elt is None:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
165 continue
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
166 encrypted_elt = next(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
167 security_elt.elements(self._o.NS_OLDMEMO, "encrypted"), None
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
168 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
169 if encrypted_elt is None:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
170 log.warning(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
171 "missing <encrypted> element, can't decrypt: {security_elt.toXml()}"
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
172 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
173 continue
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
174 session_manager = await self._o.get_session_manager(client.profile)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
175 try:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
176 message = await oldmemo.etree.parse_message(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
177 xml_tools.domish_elt_2_et_elt(encrypted_elt, False),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
178 session["peer_jid"].userhost(),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
179 client.jid.userhost(),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
180 session_manager
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
181 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
182 __, __, plain_key_material = await session_manager.decrypt(message)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
183 except Exception as e:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
184 log.warning(f"Can't get IV and key: {e}\n{security_elt.toXml()}")
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
185 continue
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
186 try:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
187 content_data["encryption"] = {
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
188 "cipher": security_elt["cipher"],
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
189 "type": security_elt["type"],
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
190 "iv": message.content.initialization_vector,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
191 "key": plain_key_material.key
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
192 }
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
193 except KeyError as e:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
194 log.warning(f"missing data, can't decrypt: {e}")
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
195 continue
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
196
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
197 return True
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
198
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
199 def __encrypt(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
200 self,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
201 data: bytes,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
202 encryptor: CipherContext,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
203 data_cb: Callable
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
204 ) -> bytes:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
205 data_cb(data)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
206 if data:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
207 return encryptor.update(data)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
208 else:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
209 try:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
210 return encryptor.finalize() + encryptor.tag
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
211 except AlreadyFinalized:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
212 return b''
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
213
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
214 def __decrypt(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
215 self,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
216 data: bytes,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
217 buffer: list[bytes],
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
218 decryptor: CipherContext,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
219 data_cb: Callable
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
220 ) -> bytes:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
221 buffer.append(data)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
222 data = b''.join(buffer)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
223 buffer.clear()
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
224 if len(data) > 16:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
225 decrypted = decryptor.update(data[:-16])
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
226 data_cb(decrypted)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
227 else:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
228 decrypted = b''
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
229 buffer.append(data[-16:])
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
230 return decrypted
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
231
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
232 def __decrypt_finalize(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
233 self,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
234 file_obj: io.BytesIO,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
235 buffer: list[bytes],
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
236 decryptor: CipherContext,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
237 ) -> None:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
238 tag = b''.join(buffer)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
239 file_obj.write(decryptor.finalize_with_tag(tag))
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
240
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
241 async def _add_encryption_filter(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
242 self,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
243 client: SatXMPPEntity,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
244 session: Dict[str, Any],
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
245 content_data: Dict[str, Any],
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
246 elt: domish.Element
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
247 ) -> bool:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
248 file_obj = content_data["stream_object"].file_obj
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
249 try:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
250 encryption_data=content_data["encryption"]
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
251 except KeyError:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
252 return True
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
253 cipher = ciphers.Cipher(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
254 ciphers.algorithms.AES(encryption_data["key"]),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
255 modes.GCM(encryption_data["iv"]),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
256 backend=backends.default_backend(),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
257 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
258 if file_obj.mode == "wb":
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
259 # we are receiving a file
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
260 buffer = []
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
261 decryptor = cipher.decryptor()
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
262 file_obj.pre_close_cb = partial(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
263 self.__decrypt_finalize,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
264 file_obj=file_obj,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
265 buffer=buffer,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
266 decryptor=decryptor
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
267 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
268 file_obj.data_cb = partial(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
269 self.__decrypt,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
270 buffer=buffer,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
271 decryptor=decryptor,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
272 data_cb=file_obj.data_cb
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
273 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
274 else:
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
275 # we are sending a file
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
276 file_obj.data_cb = partial(
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
277 self.__encrypt,
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
278 encryptor=cipher.encryptor(),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
279 data_cb=file_obj.data_cb
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
280 )
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
281
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
282 return True
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
283
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
284
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
285 @implementer(iwokkel.IDisco)
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
286 class JET_Handler(xmlstream.XMPPHandler):
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
287
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
288 def getDiscoInfo(self, requestor, service, nodeIdentifier=""):
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
289 return [
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
290 disco.DiscoFeature(NS_JET),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
291 disco.DiscoFeature(NS_JET_OMEMO),
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
292 ]
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
293
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
294 def getDiscoItems(self, requestor, service, nodeIdentifier=""):
8e7d5796fb23 plugin XEP-0391: implement XEP-0391 (Jingle Encrypted Transports) + XEP-0396 (JET-OMEMO):
Goffi <goffi@goffi.org>
parents:
diff changeset
295 return []