97df5f8be3
- fixes coroutines handling in various places - fixes types which are not serialised by Tx DBus - XEP-0384: call storage methods in main thread in XEP: Python OMEMO's Promise use thread which prevent the use of AsyncIO loop. To work around that, callLater is used to launch storage method in main thread. This is a temporary workaround, as Python OMEMO should get rid of Promise implementation and threads soon.
689 lines
26 KiB
Python
689 lines
26 KiB
Python
#!/usr/bin/env python3
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# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from typing import Dict, List, Union, Coroutine, Any, Optional
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from collections import namedtuple
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from pathlib import Path
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from twisted.internet import defer
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from twisted.words.protocols.jabber import jid
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from sat.core.xmpp import SatXMPPEntity
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from sat.core.i18n import _
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from sat.core.constants import Const as C
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from sat.core import exceptions
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from sat.core.log import getLogger
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from sat.memory import persistent
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from sat.tools import image
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from sat.tools import utils
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from sat.tools.common import data_format
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log = getLogger(__name__)
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IMPORT_NAME = "IDENTITY"
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PLUGIN_INFO = {
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C.PI_NAME: "Identity Plugin",
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C.PI_IMPORT_NAME: IMPORT_NAME,
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C.PI_TYPE: C.PLUG_TYPE_MISC,
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C.PI_PROTOCOLS: [],
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C.PI_DEPENDENCIES: [],
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C.PI_RECOMMENDATIONS: ["XEP-0045"],
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C.PI_MAIN: "Identity",
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C.PI_HANDLER: "no",
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C.PI_DESCRIPTION: _("""Identity manager"""),
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}
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Callback = namedtuple("Callback", ("origin", "get", "set", "priority"))
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class Identity:
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def __init__(self, host):
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log.info(_("Plugin Identity initialization"))
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self.host = host
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self._m = host.plugins.get("XEP-0045")
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self.metadata = {
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"avatar": {
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"type": dict,
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# convert avatar path to avatar metadata (and check validity)
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"set_data_filter": self.avatarSetDataFilter,
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# update profile avatar, so all frontends are aware
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"set_post_treatment": self.avatarSetPostTreatment,
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"update_is_new_data": self.avatarUpdateIsNewData,
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"update_data_filter": self.avatarUpdateDataFilter,
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# we store the metadata in database, to restore it on next connection
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# (it is stored only for roster entities)
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"store": True,
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},
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"nicknames": {
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"type": list,
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# accumulate all nicknames from all callbacks in a list instead
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# of returning only the data from the first successful callback
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"get_all": True,
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# append nicknames from roster, resource, etc.
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"get_post_treatment": self.nicknamesGetPostTreatment,
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"update_is_new_data": self.nicknamesUpdateIsNewData,
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"store": True,
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},
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}
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host.trigger.add("roster_update", self._rosterUpdateTrigger)
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host.memory.setSignalOnUpdate("avatar")
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host.memory.setSignalOnUpdate("nicknames")
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host.bridge.addMethod(
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"identityGet",
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".plugin",
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in_sign="sasbs",
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out_sign="s",
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method=self._getIdentity,
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async_=True,
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)
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host.bridge.addMethod(
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"identitiesGet",
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".plugin",
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in_sign="asass",
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out_sign="s",
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method=self._getIdentities,
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async_=True,
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)
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host.bridge.addMethod(
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"identitiesBaseGet",
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".plugin",
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in_sign="s",
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out_sign="s",
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method=self._getBaseIdentities,
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async_=True,
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)
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host.bridge.addMethod(
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"identitySet",
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".plugin",
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in_sign="ss",
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out_sign="",
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method=self._setIdentity,
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async_=True,
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)
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host.bridge.addMethod(
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"avatarGet",
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".plugin",
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in_sign="sbs",
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out_sign="s",
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method=self._getAvatar,
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async_=True,
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)
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host.bridge.addMethod(
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"avatarSet",
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".plugin",
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in_sign="sss",
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out_sign="",
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method=self._setAvatar,
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async_=True,
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)
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async def profileConnecting(self, client):
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client._identity_update_lock = []
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# we restore known identities from database
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client._identity_storage = persistent.LazyPersistentBinaryDict(
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"identity", client.profile)
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stored_data = await client._identity_storage.all()
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to_delete = []
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for key, value in stored_data.items():
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entity_s, name = key.split('\n')
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if name not in self.metadata.keys():
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log.debug(f"removing {key} from storage: not an allowed metadata name")
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to_delete.append(key)
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continue
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entity = jid.JID(entity_s)
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if name == 'avatar':
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if value is not None:
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try:
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cache_uid = value['cache_uid']
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if not cache_uid:
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raise ValueError
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filename = value['filename']
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if not filename:
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raise ValueError
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except (ValueError, KeyError):
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log.warning(
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f"invalid data for {entity} avatar, it will be deleted: "
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f"{value}")
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to_delete.append(key)
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continue
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cache = self.host.common_cache.getMetadata(cache_uid)
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if cache is None:
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log.debug(
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f"purging avatar for {entity}: it is not in cache anymore")
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to_delete.append(key)
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continue
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self.host.memory.updateEntityData(
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client, entity, name, value, silent=True
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)
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for key in to_delete:
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await client._identity_storage.adel(key)
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def _rosterUpdateTrigger(self, client, roster_item):
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old_item = client.roster.getItem(roster_item.jid)
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if old_item is None or old_item.name != roster_item.name:
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log.debug(
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f"roster nickname has been updated to {roster_item.name!r} for "
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f"{roster_item.jid}"
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)
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defer.ensureDeferred(
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self.update(
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client,
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IMPORT_NAME,
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"nicknames",
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[roster_item.name],
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roster_item.jid
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)
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)
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return True
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def register(
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self,
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origin: str,
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metadata_name: str,
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cb_get: Union[Coroutine, defer.Deferred],
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cb_set: Union[Coroutine, defer.Deferred],
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priority: int=0):
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"""Register callbacks to handle identity metadata
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@param origin: namespace of the plugin managing this metadata
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@param metadata_name: name of metadata can be:
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- avatar
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- nicknames
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@param cb_get: method to retrieve a metadata
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the method will get client and metadata names to retrieve as arguments.
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@param cb_set: method to set a metadata
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the method will get client, metadata name to set, and value as argument.
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@param priority: priority of this method for the given metadata.
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methods with bigger priorities will be called first
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"""
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if not metadata_name in self.metadata.keys():
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raise ValueError(f"Invalid metadata_name: {metadata_name!r}")
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callback = Callback(origin=origin, get=cb_get, set=cb_set, priority=priority)
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cb_list = self.metadata[metadata_name].setdefault('callbacks', [])
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cb_list.append(callback)
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cb_list.sort(key=lambda c: c.priority, reverse=True)
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def getIdentityJid(self, client, peer_jid):
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"""Return jid to use to set identity metadata
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if it's a jid of a room occupant, full jid will be used
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otherwise bare jid will be used
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if None, bare jid of profile will be used
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@return (jid.JID): jid to use for avatar
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"""
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if peer_jid is None:
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return client.jid.userhostJID()
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if self._m is None:
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return peer_jid.userhostJID()
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else:
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return self._m.getBareOrFull(client, peer_jid)
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def checkType(self, metadata_name, value):
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"""Check that type used for a metadata is the one declared in self.metadata"""
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value_type = self.metadata[metadata_name]["type"]
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if not isinstance(value, value_type):
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raise ValueError(
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f"{value} has wrong type: it is {type(value)} while {value_type} was "
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f"expected")
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async def get(
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self,
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client: SatXMPPEntity,
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metadata_name: str,
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entity: Optional[jid.JID],
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use_cache: bool=True,
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prefilled_values: Optional[Dict[str, Any]]=None
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):
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"""Retrieve identity metadata of an entity
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if metadata is already in cache, it is returned. Otherwise, registered callbacks
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will be tried in priority order (bigger to lower)
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@param metadata_name: name of the metadata
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must be one of self.metadata key
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the name will also be used as entity data name in host.memory
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@param entity: entity for which avatar is requested
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None to use profile's jid
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@param use_cache: if False, cache won't be checked
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@param prefilled_values: map of origin => value to use when `get_all` is set
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"""
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entity = self.getIdentityJid(client, entity)
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try:
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metadata = self.metadata[metadata_name]
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except KeyError:
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raise ValueError(f"Invalid metadata name: {metadata_name!r}")
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get_all = metadata.get('get_all', False)
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if use_cache:
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try:
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data = self.host.memory.getEntityDatum(
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client, entity, metadata_name)
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except (KeyError, exceptions.UnknownEntityError):
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pass
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else:
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return data
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try:
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callbacks = metadata['callbacks']
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except KeyError:
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log.warning(_("No callback registered for {metadata_name}")
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.format(metadata_name=metadata_name))
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return [] if get_all else None
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if get_all:
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all_data = []
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elif prefilled_values is not None:
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raise exceptions.InternalError(
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"prefilled_values can only be used when `get_all` is set")
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for callback in callbacks:
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try:
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if prefilled_values is not None and callback.origin in prefilled_values:
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data = prefilled_values[callback.origin]
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log.debug(
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f"using prefilled values {data!r} for {metadata_name} with "
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f"{callback.origin}")
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else:
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data = await defer.ensureDeferred(callback.get(client, entity))
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except exceptions.CancelError:
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continue
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except Exception as e:
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log.warning(
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_("Error while trying to get {metadata_name} with {callback}: {e}")
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.format(callback=callback.get, metadata_name=metadata_name, e=e))
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else:
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if data:
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self.checkType(metadata_name, data)
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if get_all:
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all_data.extend(data)
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else:
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break
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else:
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data = None
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if get_all:
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data = all_data
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post_treatment = metadata.get("get_post_treatment")
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if post_treatment is not None:
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data = await utils.asDeferred(post_treatment, client, entity, data)
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self.host.memory.updateEntityData(
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client, entity, metadata_name, data)
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if metadata.get('store', False):
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key = f"{entity}\n{metadata_name}"
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await client._identity_storage.aset(key, data)
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return data
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async def set(self, client, metadata_name, data, entity=None):
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"""Set identity metadata for an entity
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Registered callbacks will be tried in priority order (bigger to lower)
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@param metadata_name(str): name of the metadata
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must be one of self.metadata key
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the name will also be used to set entity data in host.memory
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@param data(object): value to set
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@param entity(jid.JID, None): entity for which avatar is requested
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None to use profile's jid
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"""
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entity = self.getIdentityJid(client, entity)
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metadata = self.metadata[metadata_name]
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data_filter = metadata.get("set_data_filter")
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if data_filter is not None:
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data = await utils.asDeferred(data_filter, client, entity, data)
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self.checkType(metadata_name, data)
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try:
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callbacks = metadata['callbacks']
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except KeyError:
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log.warning(_("No callback registered for {metadata_name}")
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.format(metadata_name=metadata_name))
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return exceptions.FeatureNotFound(f"Can't set {metadata_name} for {entity}")
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for callback in callbacks:
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try:
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await defer.ensureDeferred(callback.set(client, data, entity))
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except exceptions.CancelError:
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continue
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except Exception as e:
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log.warning(
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_("Error while trying to set {metadata_name} with {callback}: {e}")
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.format(callback=callback.set, metadata_name=metadata_name, e=e))
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else:
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break
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else:
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raise exceptions.FeatureNotFound(f"Can't set {metadata_name} for {entity}")
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post_treatment = metadata.get("set_post_treatment")
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if post_treatment is not None:
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await utils.asDeferred(post_treatment, client, entity, data)
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async def update(
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self,
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client: SatXMPPEntity,
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origin: str,
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metadata_name: str,
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data: Any,
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entity: Optional[jid.JID]
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):
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"""Update a metadata in cache
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This method may be called by plugins when an identity metadata is available.
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@param origin: namespace of the plugin which is source of the metadata
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"""
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entity = self.getIdentityJid(client, entity)
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if (entity, metadata_name) in client._identity_update_lock:
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log.debug(f"update is locked for {entity}'s {metadata_name}")
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return
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metadata = self.metadata[metadata_name]
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try:
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cached_data = self.host.memory.getEntityDatum(
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client, entity, metadata_name)
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except (KeyError, exceptions.UnknownEntityError):
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# metadata is not cached, we do the update
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pass
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else:
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# metadata is cached, we check if the new value differs from the cached one
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try:
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update_is_new_data = metadata["update_is_new_data"]
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except KeyError:
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update_is_new_data = self.defaultUpdateIsNewData
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if data is None:
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if cached_data is None:
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log.debug(
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f"{metadata_name} for {entity} is already disabled, nothing to "
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f"do")
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return
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elif cached_data is None:
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pass
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elif not update_is_new_data(client, entity, cached_data, data):
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log.debug(
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f"{metadata_name} for {entity} is already in cache, nothing to "
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f"do")
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return
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# we can't use the cache, so we do the update
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log.debug(f"updating {metadata_name} for {entity}")
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if metadata.get('get_all', False):
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# get_all is set, meaning that we have to check all plugins
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# so we first delete current cache
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try:
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self.host.memory.delEntityDatum(client, entity, metadata_name)
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except (KeyError, exceptions.UnknownEntityError):
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pass
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# then fill it again by calling get, which will retrieve all values
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# we lock update to avoid infinite recursions (update can be called during
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# get callbacks)
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client._identity_update_lock.append((entity, metadata_name))
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await self.get(client, metadata_name, entity, prefilled_values={origin: data})
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client._identity_update_lock.remove((entity, metadata_name))
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return
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if data is not None:
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data_filter = metadata['update_data_filter']
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if data_filter is not None:
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data = await utils.asDeferred(data_filter, client, entity, data)
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self.checkType(metadata_name, data)
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self.host.memory.updateEntityData(client, entity, metadata_name, data)
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if metadata.get('store', False):
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key = f"{entity}\n{metadata_name}"
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await client._identity_storage.aset(key, data)
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def defaultUpdateIsNewData(self, client, entity, cached_data, new_data):
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return new_data != cached_data
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def _getAvatar(self, entity, use_cache, profile):
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client = self.host.getClient(profile)
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entity = jid.JID(entity) if entity else None
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d = defer.ensureDeferred(self.get(client, "avatar", entity, use_cache))
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d.addCallback(lambda data: data_format.serialise(data))
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return d
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def _setAvatar(self, file_path, entity, profile_key=C.PROF_KEY_NONE):
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client = self.host.getClient(profile_key)
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entity = jid.JID(entity) if entity else None
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return defer.ensureDeferred(
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self.set(client, "avatar", file_path, entity))
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async def avatarSetDataFilter(self, client, entity, file_path):
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"""Convert avatar file path to dict data"""
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file_path = Path(file_path)
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if not file_path.is_file():
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raise ValueError(f"There is no file at {file_path} to use as avatar")
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avatar_data = {
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'path': file_path,
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'filename': file_path.name,
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'media_type': image.guess_type(file_path),
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}
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media_type = avatar_data['media_type']
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if media_type is None:
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raise ValueError(f"Can't identify type of image at {file_path}")
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if not media_type.startswith('image/'):
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raise ValueError(f"File at {file_path} doesn't appear to be an image")
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return avatar_data
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async def avatarSetPostTreatment(self, client, entity, avatar_data):
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"""Update our own avatar"""
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await self.update(client, IMPORT_NAME, "avatar", avatar_data, entity)
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def avatarBuildMetadata(self, path, media_type=None, cache_uid=None):
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"""Helper method to generate avatar metadata
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@param path(str, Path, None): path to avatar file
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avatar file must be in cache
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None if avatar is explicitely not set
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@param media_type(str, None): type of the avatar file (MIME type)
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|
@param cache_uid(str, None): UID of avatar in cache
|
|
@return (dict, None): avatar metadata
|
|
None if avatar is not set
|
|
"""
|
|
if path is None:
|
|
return None
|
|
else:
|
|
if cache_uid is None:
|
|
raise ValueError("cache_uid must be set if path is set")
|
|
path = Path(path)
|
|
if media_type is None:
|
|
media_type = image.guess_type(path)
|
|
|
|
return {
|
|
"path": path,
|
|
"filename": path.name,
|
|
"media_type": media_type,
|
|
"cache_uid": cache_uid,
|
|
}
|
|
|
|
def avatarUpdateIsNewData(self, client, entity, cached_data, new_data):
|
|
return new_data['path'] != cached_data['path']
|
|
|
|
async def avatarUpdateDataFilter(self, client, entity, data):
|
|
if not isinstance(data, dict):
|
|
raise ValueError(f"Invalid data type ({type(data)}), a dict is expected")
|
|
mandatory_keys = {'path', 'filename', 'cache_uid'}
|
|
if not data.keys() >= mandatory_keys:
|
|
raise ValueError(f"missing avatar data keys: {mandatory_keys - data.keys()}")
|
|
return data
|
|
|
|
async def nicknamesGetPostTreatment(self, client, entity, plugin_nicknames):
|
|
"""Prepend nicknames from core locations + set default nickname
|
|
|
|
nicknames are checked from many locations, there is always at least
|
|
one nickname. First nickname of the list can be used in priority.
|
|
Nicknames are appended in this order:
|
|
- roster, plugins set nicknames
|
|
- if no nickname is found, user part of jid is then used, or bare jid
|
|
if there is no user part.
|
|
For MUC, room nick is always put first
|
|
"""
|
|
# we first check roster
|
|
nicknames = []
|
|
if entity.resource:
|
|
# getIdentityJid let the resource only if the entity is a MUC room
|
|
# occupant jid
|
|
nicknames.append(entity.resource)
|
|
|
|
roster_item = client.roster.getItem(entity.userhostJID())
|
|
if roster_item is not None and roster_item.name:
|
|
# user set name has priority over entity set name
|
|
nicknames.append(roster_item.name)
|
|
|
|
nicknames.extend(plugin_nicknames)
|
|
|
|
if not nicknames:
|
|
if entity.user:
|
|
nicknames.append(entity.user.capitalize())
|
|
else:
|
|
nicknames.append(entity.userhost())
|
|
|
|
# we remove duplicates while preserving order with dict
|
|
return list(dict.fromkeys(nicknames))
|
|
|
|
def nicknamesUpdateIsNewData(self, client, entity, cached_data, new_nicknames):
|
|
return not set(new_nicknames).issubset(cached_data)
|
|
|
|
def _getIdentity(self, entity_s, metadata_filter, use_cache, profile):
|
|
entity = jid.JID(entity_s)
|
|
client = self.host.getClient(profile)
|
|
d = defer.ensureDeferred(
|
|
self.getIdentity(client, entity, metadata_filter, use_cache))
|
|
d.addCallback(data_format.serialise)
|
|
return d
|
|
|
|
async def getIdentity(
|
|
self, client, entity=None, metadata_filter=None, use_cache=True):
|
|
"""Retrieve identity of an entity
|
|
|
|
@param entity(jid.JID, None): entity to check
|
|
@param metadata_filter(list[str], None): if not None or empty, only return
|
|
metadata in this filter
|
|
@param use_cache(bool): if False, cache won't be checked
|
|
should be True most of time, to avoid useless network requests
|
|
@return (dict): identity data
|
|
"""
|
|
id_data = {}
|
|
|
|
if not metadata_filter:
|
|
metadata_names = self.metadata.keys()
|
|
else:
|
|
metadata_names = metadata_filter
|
|
|
|
for metadata_name in metadata_names:
|
|
id_data[metadata_name] = await self.get(
|
|
client, metadata_name, entity, use_cache)
|
|
|
|
return id_data
|
|
|
|
def _getIdentities(self, entities_s, metadata_filter, profile):
|
|
entities = [jid.JID(e) for e in entities_s]
|
|
client = self.host.getClient(profile)
|
|
d = defer.ensureDeferred(self.getIdentities(client, entities, metadata_filter))
|
|
d.addCallback(lambda d: data_format.serialise({str(j):i for j, i in d.items()}))
|
|
return d
|
|
|
|
async def getIdentities(
|
|
self,
|
|
client: SatXMPPEntity,
|
|
entities: List[jid.JID],
|
|
metadata_filter: Optional[List[str]] = None,
|
|
) -> dict:
|
|
"""Retrieve several identities at once
|
|
|
|
@param entities: entities from which identities must be retrieved
|
|
@param metadata_filter: same as for [getIdentity]
|
|
@return: identities metadata where key is jid
|
|
if an error happens while retrieve a jid entity, it won't be present in the
|
|
result (and a warning will be logged)
|
|
"""
|
|
identities = {}
|
|
get_identity_list = []
|
|
for entity_jid in entities:
|
|
get_identity_list.append(
|
|
defer.ensureDeferred(
|
|
self.getIdentity(
|
|
client,
|
|
entity=entity_jid,
|
|
metadata_filter=metadata_filter,
|
|
)
|
|
)
|
|
)
|
|
identities_result = await defer.DeferredList(get_identity_list)
|
|
for idx, (success, identity) in enumerate(identities_result):
|
|
entity_jid = entities[idx]
|
|
if not success:
|
|
log.warning(f"Can't get identity for {entity_jid}")
|
|
else:
|
|
identities[entity_jid] = identity
|
|
return identities
|
|
|
|
def _getBaseIdentities(self, profile_key):
|
|
client = self.host.getClient(profile_key)
|
|
d = defer.ensureDeferred(self.getBaseIdentities(client))
|
|
d.addCallback(lambda d: data_format.serialise({str(j):i for j, i in d.items()}))
|
|
return d
|
|
|
|
async def getBaseIdentities(
|
|
self,
|
|
client: SatXMPPEntity,
|
|
) -> dict:
|
|
"""Retrieve identities for entities in roster + own identity + invitations
|
|
|
|
@param with_guests: if True, get affiliations of people invited by email
|
|
|
|
"""
|
|
entities = client.roster.getJids() + [client.jid.userhostJID()]
|
|
|
|
return await self.getIdentities(
|
|
client,
|
|
entities,
|
|
['avatar', 'nicknames']
|
|
)
|
|
|
|
def _setIdentity(self, id_data_s, profile):
|
|
client = self.host.getClient(profile)
|
|
id_data = data_format.deserialise(id_data_s)
|
|
return defer.ensureDeferred(self.setIdentity(client, id_data))
|
|
|
|
async def setIdentity(self, client, id_data):
|
|
"""Update profile's identity
|
|
|
|
@param id_data(dict): data to update, key can be on of self.metadata keys
|
|
"""
|
|
if not id_data.keys() <= self.metadata.keys():
|
|
raise ValueError(
|
|
f"Invalid metadata names: {id_data.keys() - self.metadata.keys()}")
|
|
for metadata_name, data in id_data.items():
|
|
try:
|
|
await self.set(client, metadata_name, data)
|
|
except Exception as e:
|
|
log.warning(
|
|
_("Can't set metadata {metadata_name!r}: {reason}")
|
|
.format(metadata_name=metadata_name, reason=e))
|