MatrixSynapse/synapse/spam_checker_api/__init__.py

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# -*- coding: utf-8 -*-
# Copyright 2019 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from enum import Enum
from twisted.internet import defer
from synapse.storage.state import StateFilter
MYPY = False
if MYPY:
import synapse.server
logger = logging.getLogger(__name__)
class RegistrationBehaviour(Enum):
"""
Enum to define whether a registration request should allowed, denied, or shadow-banned.
"""
ALLOW = "allow"
SHADOW_BAN = "shadow_ban"
DENY = "deny"
class SpamCheckerApi(object):
"""A proxy object that gets passed to spam checkers so they can get
access to rooms and other relevant information.
"""
def __init__(self, hs: "synapse.server.HomeServer"):
self.hs = hs
self._store = hs.get_datastore()
@defer.inlineCallbacks
def get_state_events_in_room(self, room_id: str, types: tuple) -> defer.Deferred:
"""Gets state events for the given room.
Args:
room_id: The room ID to get state events in.
types: The event type and state key (using None
to represent 'any') of the room state to acquire.
Returns:
twisted.internet.defer.Deferred[list(synapse.events.FrozenEvent)]:
The filtered state events in the room.
"""
state_ids = yield defer.ensureDeferred(
self._store.get_filtered_current_state_ids(
room_id=room_id, state_filter=StateFilter.from_types(types)
)
)
state = yield defer.ensureDeferred(self._store.get_events(state_ids.values()))
return state.values()