3ea9c6fdd9
Jingle Message Initiation is currently not useful for components, and the message workflow is different in Libervia between clients and components (as a result, `messageReceived` trigger is never called, and the session proposal is never answered).
233 lines
9.2 KiB
Python
233 lines
9.2 KiB
Python
#!/usr/bin/env python3
|
|
|
|
# SàT plugin for Jingle Message Initiation (XEP-0353)
|
|
# Copyright (C) 2009-2021 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 zope.interface import implementer
|
|
from twisted.internet import defer
|
|
from twisted.internet import reactor
|
|
from twisted.words.protocols.jabber import xmlstream, jid
|
|
from twisted.words.xish import domish
|
|
from wokkel import disco, iwokkel
|
|
from sat.core.i18n import _, D_
|
|
from sat.core.constants import Const as C
|
|
from sat.core import exceptions
|
|
from sat.core.log import getLogger
|
|
from sat.tools import utils
|
|
from sat.tools import xml_tools
|
|
|
|
log = getLogger(__name__)
|
|
|
|
|
|
NS_JINGLE_MESSAGE = "urn:xmpp:jingle-message:0"
|
|
|
|
PLUGIN_INFO = {
|
|
C.PI_NAME: "Jingle Message Initiation",
|
|
C.PI_IMPORT_NAME: "XEP-0353",
|
|
C.PI_TYPE: "XEP",
|
|
C.PI_MODES: C.PLUG_MODE_CLIENT,
|
|
C.PI_PROTOCOLS: ["XEP-0353"],
|
|
C.PI_DEPENDENCIES: ["XEP-0166"],
|
|
C.PI_MAIN: "XEP_0353",
|
|
C.PI_HANDLER: "yes",
|
|
C.PI_DESCRIPTION: _("""Implementation of Jingle Message Initiation"""),
|
|
}
|
|
|
|
|
|
class XEP_0353:
|
|
|
|
def __init__(self, host):
|
|
log.info(_("plugin {name} initialization").format(name=PLUGIN_INFO[C.PI_NAME]))
|
|
self.host = host
|
|
host.registerNamespace("jingle-message", NS_JINGLE_MESSAGE)
|
|
self._j = host.plugins["XEP-0166"]
|
|
host.trigger.add("XEP-0166_initiate", self._onInitiateTrigger)
|
|
host.trigger.add("messageReceived", self._onMessageReceived)
|
|
|
|
def getHandler(self, client):
|
|
return Handler()
|
|
|
|
def profileConnecting(self, client):
|
|
# mapping from session id to deferred used to wait for destinee answer
|
|
client._xep_0353_pending_sessions = {}
|
|
|
|
def buildMessageData(self, client, peer_jid, verb, session_id):
|
|
mess_data = {
|
|
'from': client.jid,
|
|
'to': peer_jid,
|
|
'uid': '',
|
|
'message': {},
|
|
'type': C.MESS_TYPE_CHAT,
|
|
'subject': {},
|
|
'extra': {}
|
|
}
|
|
client.generateMessageXML(mess_data)
|
|
verb_elt = mess_data["xml"].addElement((NS_JINGLE_MESSAGE, verb))
|
|
verb_elt["id"] = session_id
|
|
return mess_data
|
|
|
|
async def _onInitiateTrigger(self, client, session, contents):
|
|
# FIXME: check that at least one resource of the peer_jid can handle the feature
|
|
peer_jid = session['peer_jid']
|
|
if peer_jid.resource:
|
|
return True
|
|
|
|
infos = await self.host.memory.disco.getInfos(client, peer_jid)
|
|
categories = {c for c, __ in infos.identities}
|
|
if "component" in categories:
|
|
# we don't use message initiation with components
|
|
return True
|
|
|
|
if peer_jid.userhostJID() not in client.roster:
|
|
# if the contact is not in our roster, we need to send a directed presence
|
|
# according to XEP-0353 §3.1
|
|
await client.presence.available(peer_jid)
|
|
|
|
mess_data = self.buildMessageData(client, peer_jid, "propose", session['id'])
|
|
for content in contents:
|
|
application, app_args, app_kwargs, content_name = self._j.getContentData(
|
|
content)
|
|
try:
|
|
jingleDescriptionElt = application.handler.jingleDescriptionElt
|
|
except AttributeError:
|
|
log.debug(f"no jingleDescriptionElt set for {application.handler}")
|
|
description_elt = domish.Element((content["app_ns"], "description"))
|
|
else:
|
|
description_elt = await utils.asDeferred(
|
|
jingleDescriptionElt,
|
|
client, session, content_name, *app_args, **app_kwargs
|
|
)
|
|
mess_data["xml"].propose.addChild(description_elt)
|
|
response_d = defer.Deferred()
|
|
# we wait for 2 min before cancelling the session init
|
|
response_d.addTimeout(2*60, reactor)
|
|
client._xep_0353_pending_sessions[session['id']] = response_d
|
|
await client.sendMessageData(mess_data)
|
|
try:
|
|
accepting_jid = await response_d
|
|
except defer.TimeoutError:
|
|
log.warning(_(
|
|
"Message initiation with {peer_jid} timed out"
|
|
).format(peer_jid=peer_jid))
|
|
else:
|
|
session["peer_jid"] = accepting_jid
|
|
del client._xep_0353_pending_sessions[session['id']]
|
|
return True
|
|
|
|
async def _onMessageReceived(self, client, message_elt, post_treat):
|
|
for elt in message_elt.elements():
|
|
if elt.uri == NS_JINGLE_MESSAGE:
|
|
if elt.name == "propose":
|
|
return await self._handlePropose(client, message_elt, elt)
|
|
elif elt.name == "retract":
|
|
return self._handleRetract(client, message_elt, elt)
|
|
elif elt.name == "proceed":
|
|
return self._handleProceed(client, message_elt, elt)
|
|
elif elt.name == "accept":
|
|
return self._handleAccept(client, message_elt, elt)
|
|
elif elt.name == "reject":
|
|
return self._handleAccept(client, message_elt, elt)
|
|
else:
|
|
log.warning(f"invalid element: {elt.toXml}")
|
|
return True
|
|
return True
|
|
|
|
async def _handlePropose(self, client, message_elt, elt):
|
|
peer_jid = jid.JID(message_elt["from"])
|
|
session_id = elt["id"]
|
|
if peer_jid.userhostJID() not in client.roster:
|
|
app_ns = elt.description.uri
|
|
try:
|
|
application = self._j.getApplication(app_ns)
|
|
human_name = getattr(application.handler, "human_name", application.name)
|
|
except (exceptions.NotFound, AttributeError):
|
|
if app_ns.startswith("urn:xmpp:jingle:apps:"):
|
|
human_name = app_ns[21:].split(":", 1)[0].replace('-', ' ').title()
|
|
else:
|
|
splitted_ns = app_ns.split(':')
|
|
if len(splitted_ns) > 1:
|
|
human_name = splitted_ns[-2].replace('- ', ' ').title()
|
|
else:
|
|
human_name = app_ns
|
|
|
|
confirm_msg = D_(
|
|
"Somebody not in your contact list ({peer_jid}) wants to do a "
|
|
'"{human_name}" session with you, this would leak your presence and '
|
|
"possibly you IP (internet localisation), do you accept?"
|
|
).format(peer_jid=peer_jid, human_name=human_name)
|
|
confirm_title = D_("Invitation from an unknown contact")
|
|
accept = await xml_tools.deferConfirm(
|
|
self.host, confirm_msg, confirm_title, profile=client.profile,
|
|
action_extra={
|
|
"meta_type": C.META_TYPE_NOT_IN_ROSTER_LEAK,
|
|
"meta_session_id": session_id,
|
|
"meta_from_jid": peer_jid.full(),
|
|
}
|
|
)
|
|
if not accept:
|
|
mess_data = self.buildMessageData(
|
|
client, client.jid.userhostJID(), "reject", session_id)
|
|
await client.sendMessageData(mess_data)
|
|
# we don't sent anything to sender, to avoid leaking presence
|
|
return False
|
|
else:
|
|
await client.presence.available(peer_jid)
|
|
session_id = elt["id"]
|
|
mess_data = self.buildMessageData(
|
|
client, client.jid.userhostJID(), "accept", session_id)
|
|
await client.sendMessageData(mess_data)
|
|
mess_data = self.buildMessageData(
|
|
client, peer_jid, "proceed", session_id)
|
|
await client.sendMessageData(mess_data)
|
|
return False
|
|
|
|
def _handleRetract(self, client, message_elt, proceed_elt):
|
|
log.warning("retract is not implemented yet")
|
|
return False
|
|
|
|
def _handleProceed(self, client, message_elt, proceed_elt):
|
|
try:
|
|
session_id = proceed_elt["id"]
|
|
except KeyError:
|
|
log.warning(f"invalid proceed element in message_elt: {message_elt}")
|
|
return True
|
|
try:
|
|
response_d = client._xep_0353_pending_sessions[session_id]
|
|
except KeyError:
|
|
log.warning(
|
|
_("no pending session found with id {session_id}, did it timed out?")
|
|
.format(session_id=session_id)
|
|
)
|
|
return True
|
|
|
|
response_d.callback(jid.JID(message_elt["from"]))
|
|
return False
|
|
|
|
def _handleAccept(self, client, message_elt, accept_elt):
|
|
pass
|
|
|
|
def _handleReject(self, client, message_elt, accept_elt):
|
|
pass
|
|
|
|
|
|
@implementer(iwokkel.IDisco)
|
|
class Handler(xmlstream.XMPPHandler):
|
|
|
|
def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
|
|
return [disco.DiscoFeature(NS_JINGLE_MESSAGE)]
|
|
|
|
def getDiscoItems(self, requestor, target, nodeIdentifier=""):
|
|
return []
|