Mercurial > libervia-backend
view libervia/backend/plugins/plugin_xep_0184.py @ 4306:94e0968987cd
plugin XEP-0033: code modernisation, improve delivery, data validation:
- Code has been rewritten using Pydantic models and `async` coroutines for data validation
and cleaner element parsing/generation.
- Delivery has been completely rewritten. It now works even if server doesn't support
multicast, and send to local multicast service first. Delivering to local multicast
service first is due to bad support of XEP-0033 in server (notably Prosody which has an
incomplete implementation), and the current impossibility to detect if a sub-domain
service handles fully multicast or only for local domains. This is a workaround to have
a good balance between backward compatilibity and use of bandwith, and to make it work
with the incoming email gateway implementation (the gateway will only deliver to
entities of its own domain).
- disco feature checking now uses `async` corountines. `host` implementation still use
Deferred return values for compatibility with legacy code.
rel 450
author | Goffi <goffi@goffi.org> |
---|---|
date | Thu, 26 Sep 2024 16:12:01 +0200 |
parents | 0d7bb4df2343 |
children |
line wrap: on
line source
#!/usr/bin/env python3 # SAT plugin for managing xep-0184 # Copyright (C) 2009-2016 Geoffrey POUZET (chteufleur@kingpenguin.tk) # 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 libervia.backend.core.i18n import _ from libervia.backend.core.constants import Const as C from libervia.backend.core.log import getLogger from twisted.internet import reactor from twisted.words.protocols.jabber import xmlstream, jid from twisted.words.xish import domish log = getLogger(__name__) from wokkel import disco, iwokkel from zope.interface import implementer try: from twisted.words.protocols.xmlstream import XMPPHandler except ImportError: from wokkel.subprotocols import XMPPHandler NS_MESSAGE_DELIVERY_RECEIPTS = "urn:xmpp:receipts" MSG = "message" MSG_CHAT = "/" + MSG + '[@type="chat"]' MSG_CHAT_MESSAGE_DELIVERY_RECEIPTS_REQUEST = ( MSG_CHAT + '/request[@xmlns="' + NS_MESSAGE_DELIVERY_RECEIPTS + '"]' ) MSG_CHAT_MESSAGE_DELIVERY_RECEIPTS_RECEIVED = ( MSG_CHAT + '/received[@xmlns="' + NS_MESSAGE_DELIVERY_RECEIPTS + '"]' ) MSG_NORMAL = "/" + MSG + '[@type="normal"]' MSG_NORMAL_MESSAGE_DELIVERY_RECEIPTS_REQUEST = ( MSG_NORMAL + '/request[@xmlns="' + NS_MESSAGE_DELIVERY_RECEIPTS + '"]' ) MSG_NORMAL_MESSAGE_DELIVERY_RECEIPTS_RECEIVED = ( MSG_NORMAL + '/received[@xmlns="' + NS_MESSAGE_DELIVERY_RECEIPTS + '"]' ) PARAM_KEY = "Privacy" PARAM_NAME = "Enable message delivery receipts" ENTITY_KEY = PARAM_KEY + "_" + PARAM_NAME PLUGIN_INFO = { C.PI_NAME: "XEP-0184 Plugin", C.PI_IMPORT_NAME: "XEP-0184", C.PI_TYPE: "XEP", C.PI_PROTOCOLS: ["XEP-0184"], C.PI_DEPENDENCIES: [], C.PI_MAIN: "XEP_0184", C.PI_HANDLER: "yes", C.PI_DESCRIPTION: _("""Implementation of Message Delivery Receipts"""), } STATUS_MESSAGE_DELIVERY_RECEIVED = "delivered" TEMPO_DELETE_WAITING_ACK_S = 300 # 5 min class XEP_0184(object): """ Implementation for XEP 0184. """ params = """ <params> <individual> <category name="%(category_name)s" label="%(category_label)s"> <param name="%(param_name)s" label="%(param_label)s" value="true" type="bool" security="0"/> </category> </individual> </params> """ % { "category_name": PARAM_KEY, "category_label": _(PARAM_KEY), "param_name": PARAM_NAME, "param_label": _("Enable message delivery receipts"), } def __init__(self, host): log.info(_("Plugin XEP_0184 (message delivery receipts) initialization")) self.host = host self._dictRequest = dict() # parameter value is retrieved before each use host.memory.update_params(self.params) host.trigger.add("sendMessage", self.send_message_trigger) host.bridge.add_signal( "message_state", ".plugin", signature="sss" ) # message_uid, status, profile def get_handler(self, client): return XEP_0184_handler(self, client.profile) def send_message_trigger( self, client, mess_data, pre_xml_treatments, post_xml_treatments ): """Install SendMessage command hook""" def treatment(mess_data): message = mess_data["xml"] message_type = message.getAttribute("type") if self._is_actif(client.profile) and ( message_type == "chat" or message_type == "normal" ): message.addElement("request", NS_MESSAGE_DELIVERY_RECEIPTS) uid = mess_data["uid"] msg_id = message.getAttribute("id") self._dictRequest[msg_id] = uid reactor.callLater( TEMPO_DELETE_WAITING_ACK_S, self._clear_dict_request, msg_id ) log.debug( _( "[XEP-0184] Request acknowledgment for message id {}".format( msg_id ) ) ) return mess_data post_xml_treatments.addCallback(treatment) return True def on_message_delivery_receipts_request(self, msg_elt, client): """This method is called on message delivery receipts **request** (XEP-0184 #7) @param msg_elt: message element @param client: %(doc_client)s""" from_jid = jid.JID(msg_elt["from"]) if self._is_actif(client.profile) and client.roster.is_subscribed_from(from_jid): received_elt_ret = domish.Element((NS_MESSAGE_DELIVERY_RECEIPTS, "received")) try: received_elt_ret["id"] = msg_elt["id"] except KeyError: log.warning(f"missing id for message element: {msg_elt.toXml}") return msg_result_elt = xmlstream.toResponse(msg_elt, "result") msg_result_elt.addChild(received_elt_ret) client.send(msg_result_elt) def on_message_delivery_receipts_received(self, msg_elt, client): """This method is called on message delivery receipts **received** (XEP-0184 #7) @param msg_elt: message element @param client: %(doc_client)s""" msg_elt.handled = True rcv_elt = next(msg_elt.elements(NS_MESSAGE_DELIVERY_RECEIPTS, "received")) msg_id = rcv_elt["id"] try: uid = self._dictRequest[msg_id] del self._dictRequest[msg_id] self.host.bridge.message_state( uid, STATUS_MESSAGE_DELIVERY_RECEIVED, client.profile ) log.debug( _("[XEP-0184] Receive acknowledgment for message id {}".format(msg_id)) ) except KeyError: pass def _clear_dict_request(self, msg_id): try: del self._dictRequest[msg_id] log.debug( _( "[XEP-0184] Delete waiting acknowledgment for message id {}".format( msg_id ) ) ) except KeyError: pass def _is_actif(self, profile): return self.host.memory.param_get_a(PARAM_NAME, PARAM_KEY, profile_key=profile) @implementer(iwokkel.IDisco) class XEP_0184_handler(XMPPHandler): def __init__(self, plugin_parent, profile): self.plugin_parent = plugin_parent self.host = plugin_parent.host self.profile = profile def connectionInitialized(self): self.xmlstream.addObserver( MSG_CHAT_MESSAGE_DELIVERY_RECEIPTS_REQUEST, self.plugin_parent.on_message_delivery_receipts_request, client=self.parent, ) self.xmlstream.addObserver( MSG_CHAT_MESSAGE_DELIVERY_RECEIPTS_RECEIVED, self.plugin_parent.on_message_delivery_receipts_received, client=self.parent, ) self.xmlstream.addObserver( MSG_NORMAL_MESSAGE_DELIVERY_RECEIPTS_REQUEST, self.plugin_parent.on_message_delivery_receipts_request, client=self.parent, ) self.xmlstream.addObserver( MSG_NORMAL_MESSAGE_DELIVERY_RECEIPTS_RECEIVED, self.plugin_parent.on_message_delivery_receipts_received, client=self.parent, ) def getDiscoInfo(self, requestor, target, nodeIdentifier=""): return [disco.DiscoFeature(NS_MESSAGE_DELIVERY_RECEIPTS)] def getDiscoItems(self, requestor, target, nodeIdentifier=""): return []