Mercurial > libervia-backend
view src/plugins/plugin_xep_0261.py @ 2138:6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
- new client.sendMessage method is used instead of sendMessageToStream
- client.feedback is used in OTR
- OTR now add message processing hints and carbon private element as recommanded by XEP-0364. Explicit Message Encryption is still TODO
- OTR use the new sendMessageFinish trigger, this has a number of advantages:
* there is little risk that OTR is skipped by other plugins (they have to use client.sendMessage as recommanded)
* being at the end of the chain, OTR can check and remove any HTML or other leaking elements
* OTR doesn't have to skip other plugins anymore, this means that things like delivery receipts are now working with OTR
(but because there is not full stanza encryption, they can leak metadata)
* OTR can decide to follow storage hint by letting or deleting "history" key
author | Goffi <goffi@goffi.org> |
---|---|
date | Sun, 05 Feb 2017 15:00:01 +0100 |
parents | 2daf7b4c6756 |
children | 1d3f73e065e1 |
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#!/usr/bin/env python2 # -*- coding: utf-8 -*- # SAT plugin for Jingle (XEP-0261) # Copyright (C) 2009-2016 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 sat.core.i18n import _ from sat.core.log import getLogger log = getLogger(__name__) from wokkel import disco, iwokkel from zope.interface import implements from twisted.words.xish import domish import uuid try: from twisted.words.protocols.xmlstream import XMPPHandler except ImportError: from wokkel.subprotocols import XMPPHandler NS_JINGLE_IBB = 'urn:xmpp:jingle:transports:ibb:1' PLUGIN_INFO = { "name": "Jingle In-Band Bytestreams", "import_name": "XEP-0261", "type": "XEP", "protocols": ["XEP-0261"], "dependencies": ["XEP-0166", "XEP-0047"], "main": "XEP_0261", "handler": "yes", "description": _("""Implementation of Jingle In-Band Bytestreams""") } class XEP_0261(object): NAMESPACE = NS_JINGLE_IBB # used by XEP-0260 plugin for transport-replace def __init__(self, host): log.info(_("plugin Jingle In-Band Bytestreams")) self.host = host self._j = host.plugins["XEP-0166"] # shortcut to access jingle self._ibb = host.plugins["XEP-0047"] # and in-band bytestream self._j.registerTransport(NS_JINGLE_IBB, self._j.TRANSPORT_STREAMING, self, -10000) # must be the lowest priority def getHandler(self, profile): return XEP_0261_handler() def jingleSessionInit(self, session, content_name, profile): transport_elt = domish.Element((NS_JINGLE_IBB, "transport")) content_data = session['contents'][content_name] transport_data = content_data['transport_data'] transport_data['block_size'] = self._ibb.BLOCK_SIZE transport_elt['block-size'] = unicode(transport_data['block_size']) transport_elt['sid'] = transport_data['sid'] = unicode(uuid.uuid4()) return transport_elt def jingleHandler(self, action, session, content_name, transport_elt, profile): content_data = session['contents'][content_name] transport_data = content_data['transport_data'] if action in (self._j.A_SESSION_ACCEPT, self._j.A_ACCEPTED_ACK, self._j.A_TRANSPORT_ACCEPT): pass elif action in (self._j.A_SESSION_INITIATE, self._j.A_TRANSPORT_REPLACE): transport_data['sid'] = transport_elt['sid'] elif action in (self._j.A_START, self._j.A_PREPARE_RESPONDER): peer_jid = session['peer_jid'] sid = transport_data['sid'] file_obj = content_data['file_obj'] if action == self._j.A_START: block_size = transport_data['block_size'] d = self._ibb.startStream(file_obj, peer_jid, sid, block_size, profile) d.chainDeferred(content_data['finished_d']) else: d = self._ibb.createSession(file_obj, peer_jid, sid, profile) d.chainDeferred(content_data['finished_d']) else: log.warning(u"FIXME: unmanaged action {}".format(action)) return transport_elt class XEP_0261_handler(XMPPHandler): implements(iwokkel.IDisco) def getDiscoInfo(self, requestor, target, nodeIdentifier=''): return [disco.DiscoFeature(NS_JINGLE_IBB)] def getDiscoItems(self, requestor, target, nodeIdentifier=''): return []