Mercurial > libervia-backend
view sat/plugins/plugin_xep_0184.py @ 3934:e345d93fb6e5
plugin OXPS: OpenPGP for XMPP Pubsub implementation:
OpenPGP for XMPP Pubsub (https://xmpp.org/extensions/inbox/pubsub-encryption.html,
currently a protoXEP) is implemented and activated when `encrypted` is set to `True` in
pubsub's `extra` data.
On item retrieval, the decryption is transparent if the key is known, except if the
`decrypt` key in `extra` is set to `False` (notably useful when one wants to checks that
data is well encrypted).
Methods and corresponding bridge methods have been implemented to manage shared secrets
(to share, revoke or rotate the secrets).
plugin XEP-0060's `XEP-0060_publish` trigger point as been move before actual publish so
item can be modified (here e2ee) by the triggers. A new `XEP-0060_items` trigger point has
also been added.
`encrypted` flag can be used with plugin XEP-0277's microblog data
rel 380
author | Goffi <goffi@goffi.org> |
---|---|
date | Sat, 15 Oct 2022 20:36:53 +0200 |
parents | 31628770a15a |
children | 524856bd7b19 |
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#!/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 sat.core.i18n import _ from sat.core.constants import Const as C from sat.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.updateParams(self.params) host.trigger.add("sendMessage", self.sendMessageTrigger) host.bridge.addSignal( "messageState", ".plugin", signature="sss" ) # message_uid, status, profile def getHandler(self, client): return XEP_0184_handler(self, client.profile) def sendMessageTrigger( 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._isActif(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._clearDictRequest, 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 onMessageDeliveryReceiptsRequest(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._isActif(client.profile) and client.roster.isSubscribedFrom(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 onMessageDeliveryReceiptsReceived(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.messageState( uid, STATUS_MESSAGE_DELIVERY_RECEIVED, client.profile ) log.debug( _("[XEP-0184] Receive acknowledgment for message id {}".format(msg_id)) ) except KeyError: pass def _clearDictRequest(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 _isActif(self, profile): return self.host.memory.getParamA(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.onMessageDeliveryReceiptsRequest, client=self.parent, ) self.xmlstream.addObserver( MSG_CHAT_MESSAGE_DELIVERY_RECEIPTS_RECEIVED, self.plugin_parent.onMessageDeliveryReceiptsReceived, client=self.parent, ) self.xmlstream.addObserver( MSG_NORMAL_MESSAGE_DELIVERY_RECEIPTS_REQUEST, self.plugin_parent.onMessageDeliveryReceiptsRequest, client=self.parent, ) self.xmlstream.addObserver( MSG_NORMAL_MESSAGE_DELIVERY_RECEIPTS_RECEIVED, self.plugin_parent.onMessageDeliveryReceiptsReceived, client=self.parent, ) def getDiscoInfo(self, requestor, target, nodeIdentifier=""): return [disco.DiscoFeature(NS_MESSAGE_DELIVERY_RECEIPTS)] def getDiscoItems(self, requestor, target, nodeIdentifier=""): return []