anonymousland-synapse/synapse/replication/slave/storage/devices.py

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# -*- coding: utf-8 -*-
# Copyright 2016 OpenMarket Ltd
#
# 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.
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from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage._slaved_id_tracker import SlavedIdTracker
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from synapse.replication.tcp.streams._base import DeviceListsStream, UserSignatureStream
from synapse.storage.database import DatabasePool
from synapse.storage.databases.main.devices import DeviceWorkerStore
from synapse.storage.databases.main.end_to_end_keys import EndToEndKeyWorkerStore
from synapse.util.caches.stream_change_cache import StreamChangeCache
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class SlavedDeviceStore(EndToEndKeyWorkerStore, DeviceWorkerStore, BaseSlavedStore):
def __init__(self, database: DatabasePool, db_conn, hs):
super().__init__(database, db_conn, hs)
self.hs = hs
self._device_list_id_gen = SlavedIdTracker(
db_conn,
"device_lists_stream",
"stream_id",
extra_tables=[
("user_signature_stream", "stream_id"),
("device_lists_outbound_pokes", "stream_id"),
],
)
device_list_max = self._device_list_id_gen.get_current_token()
self._device_list_stream_cache = StreamChangeCache(
"DeviceListStreamChangeCache", device_list_max
)
self._user_signature_stream_cache = StreamChangeCache(
"UserSignatureStreamChangeCache", device_list_max
)
self._device_list_federation_stream_cache = StreamChangeCache(
"DeviceListFederationStreamChangeCache", device_list_max
)
def get_device_stream_token(self) -> int:
return self._device_list_id_gen.get_current_token()
def process_replication_rows(self, stream_name, instance_name, token, rows):
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if stream_name == DeviceListsStream.NAME:
self._device_list_id_gen.advance(instance_name, token)
self._invalidate_caches_for_devices(token, rows)
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elif stream_name == UserSignatureStream.NAME:
self._device_list_id_gen.advance(instance_name, token)
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for row in rows:
self._user_signature_stream_cache.entity_has_changed(row.user_id, token)
return super().process_replication_rows(stream_name, instance_name, token, rows)
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def _invalidate_caches_for_devices(self, token, rows):
for row in rows:
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# The entities are either user IDs (starting with '@') whose devices
# have changed, or remote servers that we need to tell about
# changes.
if row.entity.startswith("@"):
self._device_list_stream_cache.entity_has_changed(row.entity, token)
self.get_cached_devices_for_user.invalidate((row.entity,))
self._get_cached_user_device.invalidate_many((row.entity,))
self.get_device_list_last_stream_id_for_remote.invalidate((row.entity,))
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else:
self._device_list_federation_stream_cache.entity_has_changed(
row.entity, token
)