Mercurial > libervia-backend
view sat/plugins/plugin_xep_0380.py @ 3254:6cf4bd6972c2
core, frontends: avatar refactoring:
/!\ huge commit
Avatar logic has been reworked around the IDENTITY plugin: plugins able to handle avatar
or other identity related metadata (like nicknames) register to IDENTITY plugin in the
same way as for other features like download/upload. Once registered, IDENTITY plugin will
call them when suitable in order of priority, and handle caching.
Methods to manage those metadata from frontend now use serialised data.
For now `avatar` and `nicknames` are handled:
- `avatar` is now a dict with `path` + metadata like `media_type`, instead of just a string
path
- `nicknames` is now a list of nicknames in order of priority. This list is never empty,
and `nicknames[0]` should be the preferred nickname to use by frontends in most cases.
In addition to contact specified nicknames, user set nickname (the one set in roster) is
used in priority when available.
Among the side changes done with this commit, there are:
- a new `contactGet` bridge method to get roster metadata for a single contact
- SatPresenceProtocol.send returns a Deferred to check when it has actually been sent
- memory's methods to handle entities data now use `client` as first argument
- metadata filter can be specified with `getIdentity`
- `getAvatar` and `setAvatar` are now part of the IDENTITY plugin instead of XEP-0054 (and
there signature has changed)
- `isRoom` and `getBareOrFull` are now part of XEP-0045 plugin
- jp avatar/get command uses `xdg-open` first when available for `--show` flag
- `--no-cache` has been added to jp avatar/get and identity/get
- jp identity/set has been simplified, explicit options (`--nickname` only for now) are
used instead of `--field`. `--field` may come back in the future if necessary for extra
data.
- QuickContactList `SetContact` now handle None as a value, and doesn't use it to delete the
metadata anymore
- improved cache handling for `metadata` and `nicknames` in quick frontend
- new `default` argument in QuickContactList `getCache`
author | Goffi <goffi@goffi.org> |
---|---|
date | Tue, 14 Apr 2020 21:00:33 +0200 |
parents | dcebc585c29f |
children | be6d91572633 |
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#!/usr/bin/env python3 # SAT plugin for Explicit Message Encryption # Copyright (C) 2009-2020 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 _, D_ from sat.core.constants import Const as C from sat.core.log import getLogger from twisted.words.protocols.jabber import jid log = getLogger(__name__) PLUGIN_INFO = { C.PI_NAME: "Explicit Message Encryption", C.PI_IMPORT_NAME: "XEP-0380", C.PI_TYPE: "SEC", C.PI_PROTOCOLS: ["XEP-0380"], C.PI_DEPENDENCIES: [], C.PI_MAIN: "XEP_0380", C.PI_HANDLER: "no", C.PI_DESCRIPTION: _("""Implementation of Explicit Message Encryption"""), } NS_EME = "urn:xmpp:eme:0" KNOWN_NAMESPACES = { "urn:xmpp:otr:0": "OTR", "jabber:x:encrypted": "Legacy OpenPGP", "urn:xmpp:openpgp:0": "OpenPGP for XMPP", } class XEP_0380(object): def __init__(self, host): self.host = host host.trigger.add("sendMessage", self._sendMessageTrigger) host.trigger.add("messageReceived", self._messageReceivedTrigger, priority=100) host.registerNamespace("eme", NS_EME) def _addEMEElement(self, mess_data, namespace, name): message_elt = mess_data['xml'] encryption_elt = message_elt.addElement((NS_EME, 'encryption')) encryption_elt['namespace'] = namespace if name is not None: encryption_elt['name'] = name return mess_data def _sendMessageTrigger(self, client, mess_data, __, post_xml_treatments): encryption = mess_data.get(C.MESS_KEY_ENCRYPTION) if encryption is not None: namespace = encryption['plugin'].namespace if namespace not in KNOWN_NAMESPACES: name = encryption['plugin'].name else: name = None post_xml_treatments.addCallback( self._addEMEElement, namespace=namespace, name=name) return True def _messageReceivedTrigger(self, client, message_elt, post_treat): try: encryption_elt = next(message_elt.elements(NS_EME, 'encryption')) except StopIteration: return True namespace = encryption_elt['namespace'] if namespace in client.encryption.getNamespaces(): # message is encrypted and we can decrypt it return True name = KNOWN_NAMESPACES.get(namespace, encryption_elt.getAttribute("name")) # at this point, message is encrypted but we know that we can't decrypt it, # we need to notify the user sender_s = message_elt['from'] to_jid = jid.JID(message_elt['from']) algorithm = "{} [{}]".format(name, namespace) if name else namespace log.warning( _("Message from {sender} is encrypted with {algorithm} and we can't " "decrypt it.".format(sender=message_elt['from'], algorithm=algorithm))) user_msg = D_( "User {sender} sent you an encrypted message (encrypted with {algorithm}), " "and we can't decrypt it.").format(sender=sender_s, algorithm=algorithm) extra = {C.MESS_EXTRA_INFO: C.EXTRA_INFO_DECR_ERR} client.feedback(to_jid, user_msg, extra) return False