Mercurial > libervia-backend
view libervia/backend/plugins/plugin_xep_0320.py @ 4334:111dce64dcb5
plugins XEP-0300, XEP-0446, XEP-0447, XEP0448 and others: Refactoring to use Pydantic:
Pydantic models are used more and more in Libervia, for the bridge API, and also to
convert `domish.Element` to internal representation.
Type hints have also been added in many places.
rel 453
author | Goffi <goffi@goffi.org> |
---|---|
date | Tue, 03 Dec 2024 00:12:38 +0100 |
parents | 4b842c1fb686 |
children |
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#!/usr/bin/env python3 # Libervia plugin # Copyright (C) 2009-2023 Jérôme Poisson (goffi@goffi.org) # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero 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 Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. from twisted.words.protocols.jabber.xmlstream import XMPPHandler from twisted.words.xish import domish from wokkel import disco, iwokkel from zope.interface import implementer from libervia.backend.core.constants import Const as C from libervia.backend.core.i18n import _ from libervia.backend.core.log import getLogger log = getLogger(__name__) NS_JINGLE_DTLS = "urn:xmpp:jingle:apps:dtls:0" PLUGIN_INFO = { C.PI_NAME: "Use of DTLS-SRTP in Jingle Sessions", C.PI_IMPORT_NAME: "XEP-0320", C.PI_TYPE: "XEP", C.PI_MODES: C.PLUG_MODE_BOTH, C.PI_PROTOCOLS: ["XEP-0320"], C.PI_DEPENDENCIES: ["XEP-0176"], C.PI_RECOMMENDATIONS: [], C.PI_MAIN: "XEP_0320", C.PI_HANDLER: "yes", C.PI_DESCRIPTION: _("""Use of DTLS-SRTP with RTP (for e2ee of A/V calls)"""), } class XEP_0320: def __init__(self, host): log.info(f"plugin {PLUGIN_INFO[C.PI_NAME]!r} initialization") host.trigger.add("XEP-0176_parse_transport", self._parse_transport_trigger) host.trigger.add("XEP-0176_build_transport", self._build_transport_trigger) def get_handler(self, client): return XEP_0320_handler() def _parse_transport_trigger( self, transport_elt: domish.Element, ice_data: dict ) -> bool: """Parse the <fingerprint> element""" fingerprint_elt = next( transport_elt.elements(NS_JINGLE_DTLS, "fingerprint"), None ) if fingerprint_elt is not None: try: ice_data["fingerprint"] = { "hash": fingerprint_elt["hash"], "setup": fingerprint_elt["setup"], "fingerprint": str(fingerprint_elt), } except KeyError as e: log.warning( f"invalid <fingerprint> (attribue {e} is missing): " f"{fingerprint_elt.toXml()})" ) return True def _build_transport_trigger( self, tranport_elt: domish.Element, ice_data: dict ) -> bool: """Build the <fingerprint> element if possible""" try: fingerprint_data = ice_data["fingerprint"] hash_ = fingerprint_data["hash"] setup = fingerprint_data["setup"] fingerprint = fingerprint_data["fingerprint"] except KeyError: pass else: fingerprint_elt = tranport_elt.addElement( (NS_JINGLE_DTLS, "fingerprint"), content=fingerprint ) fingerprint_elt["hash"] = hash_ fingerprint_elt["setup"] = setup return True @implementer(iwokkel.IDisco) class XEP_0320_handler(XMPPHandler): def getDiscoInfo(self, requestor, target, nodeIdentifier=""): return [disco.DiscoFeature(NS_JINGLE_DTLS)] def getDiscoItems(self, requestor, target, nodeIdentifier=""): return []