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![Jonathan de Jong](/assets/img/avatar_default.png)
Part of #9744 Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now. `Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
518 lines
19 KiB
Python
518 lines
19 KiB
Python
# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2018 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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from typing import Dict, List, Optional, Set, Tuple
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from synapse.api.constants import AccountDataTypes
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from synapse.replication.slave.storage._slaved_id_tracker import SlavedIdTracker
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from synapse.replication.tcp.streams import AccountDataStream, TagAccountDataStream
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from synapse.storage._base import SQLBaseStore, db_to_json
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from synapse.storage.database import DatabasePool
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from synapse.storage.engines import PostgresEngine
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from synapse.storage.util.id_generators import MultiWriterIdGenerator, StreamIdGenerator
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from synapse.types import JsonDict
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from synapse.util import json_encoder
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from synapse.util.caches.descriptors import cached
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from synapse.util.caches.stream_change_cache import StreamChangeCache
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logger = logging.getLogger(__name__)
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class AccountDataWorkerStore(SQLBaseStore):
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"""This is an abstract base class where subclasses must implement
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`get_max_account_data_stream_id` which can be called in the initializer.
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"""
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def __init__(self, database: DatabasePool, db_conn, hs):
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self._instance_name = hs.get_instance_name()
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if isinstance(database.engine, PostgresEngine):
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self._can_write_to_account_data = (
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self._instance_name in hs.config.worker.writers.account_data
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)
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self._account_data_id_gen = MultiWriterIdGenerator(
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db_conn=db_conn,
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db=database,
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stream_name="account_data",
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instance_name=self._instance_name,
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tables=[
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("room_account_data", "instance_name", "stream_id"),
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("room_tags_revisions", "instance_name", "stream_id"),
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("account_data", "instance_name", "stream_id"),
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],
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sequence_name="account_data_sequence",
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writers=hs.config.worker.writers.account_data,
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)
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else:
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self._can_write_to_account_data = True
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# We shouldn't be running in worker mode with SQLite, but its useful
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# to support it for unit tests.
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#
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# If this process is the writer than we need to use
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# `StreamIdGenerator`, otherwise we use `SlavedIdTracker` which gets
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# updated over replication. (Multiple writers are not supported for
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# SQLite).
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if hs.get_instance_name() in hs.config.worker.writers.account_data:
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self._account_data_id_gen = StreamIdGenerator(
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db_conn,
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"room_account_data",
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"stream_id",
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extra_tables=[("room_tags_revisions", "stream_id")],
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)
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else:
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self._account_data_id_gen = SlavedIdTracker(
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db_conn,
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"room_account_data",
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"stream_id",
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extra_tables=[("room_tags_revisions", "stream_id")],
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)
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account_max = self.get_max_account_data_stream_id()
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self._account_data_stream_cache = StreamChangeCache(
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"AccountDataAndTagsChangeCache", account_max
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)
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super().__init__(database, db_conn, hs)
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def get_max_account_data_stream_id(self) -> int:
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"""Get the current max stream ID for account data stream
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Returns:
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int
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"""
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return self._account_data_id_gen.get_current_token()
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@cached()
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async def get_account_data_for_user(
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self, user_id: str
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) -> Tuple[Dict[str, JsonDict], Dict[str, Dict[str, JsonDict]]]:
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"""Get all the client account_data for a user.
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Args:
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user_id: The user to get the account_data for.
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Returns:
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A 2-tuple of a dict of global account_data and a dict mapping from
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room_id string to per room account_data dicts.
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"""
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def get_account_data_for_user_txn(txn):
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rows = self.db_pool.simple_select_list_txn(
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txn,
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"account_data",
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{"user_id": user_id},
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["account_data_type", "content"],
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)
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global_account_data = {
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row["account_data_type"]: db_to_json(row["content"]) for row in rows
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}
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rows = self.db_pool.simple_select_list_txn(
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txn,
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"room_account_data",
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{"user_id": user_id},
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["room_id", "account_data_type", "content"],
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)
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by_room = {}
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for row in rows:
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room_data = by_room.setdefault(row["room_id"], {})
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room_data[row["account_data_type"]] = db_to_json(row["content"])
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return global_account_data, by_room
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return await self.db_pool.runInteraction(
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"get_account_data_for_user", get_account_data_for_user_txn
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)
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@cached(num_args=2, max_entries=5000)
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async def get_global_account_data_by_type_for_user(
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self, data_type: str, user_id: str
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) -> Optional[JsonDict]:
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"""
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Returns:
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The account data.
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"""
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result = await self.db_pool.simple_select_one_onecol(
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table="account_data",
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keyvalues={"user_id": user_id, "account_data_type": data_type},
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retcol="content",
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desc="get_global_account_data_by_type_for_user",
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allow_none=True,
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)
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if result:
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return db_to_json(result)
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else:
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return None
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@cached(num_args=2)
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async def get_account_data_for_room(
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self, user_id: str, room_id: str
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) -> Dict[str, JsonDict]:
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"""Get all the client account_data for a user for a room.
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Args:
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user_id: The user to get the account_data for.
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room_id: The room to get the account_data for.
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Returns:
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A dict of the room account_data
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"""
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def get_account_data_for_room_txn(txn):
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rows = self.db_pool.simple_select_list_txn(
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txn,
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"room_account_data",
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{"user_id": user_id, "room_id": room_id},
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["account_data_type", "content"],
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)
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return {
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row["account_data_type"]: db_to_json(row["content"]) for row in rows
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}
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return await self.db_pool.runInteraction(
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"get_account_data_for_room", get_account_data_for_room_txn
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)
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@cached(num_args=3, max_entries=5000)
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async def get_account_data_for_room_and_type(
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self, user_id: str, room_id: str, account_data_type: str
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) -> Optional[JsonDict]:
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"""Get the client account_data of given type for a user for a room.
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Args:
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user_id: The user to get the account_data for.
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room_id: The room to get the account_data for.
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account_data_type: The account data type to get.
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Returns:
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The room account_data for that type, or None if there isn't any set.
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"""
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def get_account_data_for_room_and_type_txn(txn):
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content_json = self.db_pool.simple_select_one_onecol_txn(
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txn,
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table="room_account_data",
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keyvalues={
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"user_id": user_id,
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"room_id": room_id,
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"account_data_type": account_data_type,
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},
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retcol="content",
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allow_none=True,
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)
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return db_to_json(content_json) if content_json else None
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return await self.db_pool.runInteraction(
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"get_account_data_for_room_and_type", get_account_data_for_room_and_type_txn
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)
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async def get_updated_global_account_data(
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self, last_id: int, current_id: int, limit: int
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) -> List[Tuple[int, str, str]]:
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"""Get the global account_data that has changed, for the account_data stream
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Args:
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last_id: the last stream_id from the previous batch.
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current_id: the maximum stream_id to return up to
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limit: the maximum number of rows to return
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Returns:
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A list of tuples of stream_id int, user_id string,
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and type string.
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"""
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if last_id == current_id:
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return []
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def get_updated_global_account_data_txn(txn):
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sql = (
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"SELECT stream_id, user_id, account_data_type"
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" FROM account_data WHERE ? < stream_id AND stream_id <= ?"
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" ORDER BY stream_id ASC LIMIT ?"
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)
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txn.execute(sql, (last_id, current_id, limit))
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return txn.fetchall()
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return await self.db_pool.runInteraction(
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"get_updated_global_account_data", get_updated_global_account_data_txn
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)
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async def get_updated_room_account_data(
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self, last_id: int, current_id: int, limit: int
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) -> List[Tuple[int, str, str, str]]:
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"""Get the global account_data that has changed, for the account_data stream
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Args:
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last_id: the last stream_id from the previous batch.
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current_id: the maximum stream_id to return up to
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limit: the maximum number of rows to return
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Returns:
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A list of tuples of stream_id int, user_id string,
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room_id string and type string.
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"""
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if last_id == current_id:
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return []
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def get_updated_room_account_data_txn(txn):
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sql = (
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"SELECT stream_id, user_id, room_id, account_data_type"
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" FROM room_account_data WHERE ? < stream_id AND stream_id <= ?"
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" ORDER BY stream_id ASC LIMIT ?"
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)
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txn.execute(sql, (last_id, current_id, limit))
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return txn.fetchall()
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return await self.db_pool.runInteraction(
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"get_updated_room_account_data", get_updated_room_account_data_txn
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)
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async def get_updated_account_data_for_user(
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self, user_id: str, stream_id: int
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) -> Tuple[Dict[str, JsonDict], Dict[str, Dict[str, JsonDict]]]:
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"""Get all the client account_data for a that's changed for a user
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Args:
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user_id: The user to get the account_data for.
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stream_id: The point in the stream since which to get updates
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Returns:
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A deferred pair of a dict of global account_data and a dict
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mapping from room_id string to per room account_data dicts.
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"""
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def get_updated_account_data_for_user_txn(txn):
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sql = (
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"SELECT account_data_type, content FROM account_data"
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" WHERE user_id = ? AND stream_id > ?"
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)
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txn.execute(sql, (user_id, stream_id))
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global_account_data = {row[0]: db_to_json(row[1]) for row in txn}
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sql = (
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"SELECT room_id, account_data_type, content FROM room_account_data"
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" WHERE user_id = ? AND stream_id > ?"
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)
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txn.execute(sql, (user_id, stream_id))
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account_data_by_room = {}
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for row in txn:
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room_account_data = account_data_by_room.setdefault(row[0], {})
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room_account_data[row[1]] = db_to_json(row[2])
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return global_account_data, account_data_by_room
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changed = self._account_data_stream_cache.has_entity_changed(
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user_id, int(stream_id)
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)
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if not changed:
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return ({}, {})
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return await self.db_pool.runInteraction(
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"get_updated_account_data_for_user", get_updated_account_data_for_user_txn
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)
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@cached(max_entries=5000, iterable=True)
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async def ignored_by(self, user_id: str) -> Set[str]:
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"""
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Get users which ignore the given user.
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Params:
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user_id: The user ID which might be ignored.
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Return:
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The user IDs which ignore the given user.
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"""
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return set(
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await self.db_pool.simple_select_onecol(
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table="ignored_users",
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keyvalues={"ignored_user_id": user_id},
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retcol="ignorer_user_id",
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desc="ignored_by",
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)
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)
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def process_replication_rows(self, stream_name, instance_name, token, rows):
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if stream_name == TagAccountDataStream.NAME:
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self._account_data_id_gen.advance(instance_name, token)
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for row in rows:
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self.get_tags_for_user.invalidate((row.user_id,))
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self._account_data_stream_cache.entity_has_changed(row.user_id, token)
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elif stream_name == AccountDataStream.NAME:
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self._account_data_id_gen.advance(instance_name, token)
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for row in rows:
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if not row.room_id:
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self.get_global_account_data_by_type_for_user.invalidate(
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(row.data_type, row.user_id)
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)
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self.get_account_data_for_user.invalidate((row.user_id,))
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self.get_account_data_for_room.invalidate((row.user_id, row.room_id))
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self.get_account_data_for_room_and_type.invalidate(
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(row.user_id, row.room_id, row.data_type)
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)
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self._account_data_stream_cache.entity_has_changed(row.user_id, token)
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return super().process_replication_rows(stream_name, instance_name, token, rows)
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async def add_account_data_to_room(
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self, user_id: str, room_id: str, account_data_type: str, content: JsonDict
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) -> int:
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"""Add some account_data to a room for a user.
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Args:
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user_id: The user to add a tag for.
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room_id: The room to add a tag for.
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account_data_type: The type of account_data to add.
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content: A json object to associate with the tag.
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Returns:
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The maximum stream ID.
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"""
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assert self._can_write_to_account_data
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content_json = json_encoder.encode(content)
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async with self._account_data_id_gen.get_next() as next_id:
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# no need to lock here as room_account_data has a unique constraint
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# on (user_id, room_id, account_data_type) so simple_upsert will
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# retry if there is a conflict.
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await self.db_pool.simple_upsert(
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desc="add_room_account_data",
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table="room_account_data",
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keyvalues={
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"user_id": user_id,
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"room_id": room_id,
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"account_data_type": account_data_type,
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},
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values={"stream_id": next_id, "content": content_json},
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lock=False,
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)
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self._account_data_stream_cache.entity_has_changed(user_id, next_id)
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self.get_account_data_for_user.invalidate((user_id,))
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self.get_account_data_for_room.invalidate((user_id, room_id))
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self.get_account_data_for_room_and_type.prefill(
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(user_id, room_id, account_data_type), content
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)
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return self._account_data_id_gen.get_current_token()
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async def add_account_data_for_user(
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self, user_id: str, account_data_type: str, content: JsonDict
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) -> int:
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"""Add some account_data to a room for a user.
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Args:
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user_id: The user to add a tag for.
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account_data_type: The type of account_data to add.
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content: A json object to associate with the tag.
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Returns:
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The maximum stream ID.
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"""
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assert self._can_write_to_account_data
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async with self._account_data_id_gen.get_next() as next_id:
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await self.db_pool.runInteraction(
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"add_user_account_data",
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self._add_account_data_for_user,
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next_id,
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user_id,
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account_data_type,
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content,
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)
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self._account_data_stream_cache.entity_has_changed(user_id, next_id)
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self.get_account_data_for_user.invalidate((user_id,))
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self.get_global_account_data_by_type_for_user.invalidate(
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(account_data_type, user_id)
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)
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return self._account_data_id_gen.get_current_token()
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def _add_account_data_for_user(
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self,
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txn,
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next_id: int,
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user_id: str,
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account_data_type: str,
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content: JsonDict,
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) -> None:
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content_json = json_encoder.encode(content)
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# no need to lock here as account_data has a unique constraint on
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# (user_id, account_data_type) so simple_upsert will retry if
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# there is a conflict.
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self.db_pool.simple_upsert_txn(
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txn,
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table="account_data",
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keyvalues={"user_id": user_id, "account_data_type": account_data_type},
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values={"stream_id": next_id, "content": content_json},
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lock=False,
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)
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# Ignored users get denormalized into a separate table as an optimisation.
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if account_data_type != AccountDataTypes.IGNORED_USER_LIST:
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return
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# Insert / delete to sync the list of ignored users.
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previously_ignored_users = set(
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self.db_pool.simple_select_onecol_txn(
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txn,
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table="ignored_users",
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keyvalues={"ignorer_user_id": user_id},
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retcol="ignored_user_id",
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)
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)
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# If the data is invalid, no one is ignored.
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ignored_users_content = content.get("ignored_users", {})
|
|
if isinstance(ignored_users_content, dict):
|
|
currently_ignored_users = set(ignored_users_content)
|
|
else:
|
|
currently_ignored_users = set()
|
|
|
|
# Delete entries which are no longer ignored.
|
|
self.db_pool.simple_delete_many_txn(
|
|
txn,
|
|
table="ignored_users",
|
|
column="ignored_user_id",
|
|
iterable=previously_ignored_users - currently_ignored_users,
|
|
keyvalues={"ignorer_user_id": user_id},
|
|
)
|
|
|
|
# Add entries which are newly ignored.
|
|
self.db_pool.simple_insert_many_txn(
|
|
txn,
|
|
table="ignored_users",
|
|
values=[
|
|
{"ignorer_user_id": user_id, "ignored_user_id": u}
|
|
for u in currently_ignored_users - previously_ignored_users
|
|
],
|
|
)
|
|
|
|
# Invalidate the cache for any ignored users which were added or removed.
|
|
for ignored_user_id in previously_ignored_users ^ currently_ignored_users:
|
|
self._invalidate_cache_and_stream(txn, self.ignored_by, (ignored_user_id,))
|
|
|
|
|
|
class AccountDataStore(AccountDataWorkerStore):
|
|
pass
|