401 lines
15 KiB
Python
401 lines
15 KiB
Python
# -*- coding: utf-8 -*-
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# 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 abc
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import logging
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from canonicaljson import json
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from twisted.internet import defer
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from synapse.storage._base import SQLBaseStore
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from synapse.storage.util.id_generators import StreamIdGenerator
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from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
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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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# This ABCMeta metaclass ensures that we cannot be instantiated without
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# the abstract methods being implemented.
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__metaclass__ = abc.ABCMeta
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def __init__(self, db_conn, hs):
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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(AccountDataWorkerStore, self).__init__(db_conn, hs)
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@abc.abstractmethod
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def get_max_account_data_stream_id(self):
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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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raise NotImplementedError()
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@cached()
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def get_account_data_for_user(self, user_id):
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"""Get all the client account_data for a user.
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Args:
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user_id(str): The user to get the account_data for.
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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_account_data_for_user_txn(txn):
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rows = self._simple_select_list_txn(
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txn, "account_data", {"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"]: json.loads(row["content"]) for row in rows
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}
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rows = self._simple_select_list_txn(
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txn, "room_account_data", {"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"]] = json.loads(row["content"])
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return (global_account_data, by_room)
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return self.runInteraction(
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"get_account_data_for_user", get_account_data_for_user_txn
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)
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@cachedInlineCallbacks(num_args=2, max_entries=5000)
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def get_global_account_data_by_type_for_user(self, data_type, user_id):
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"""
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Returns:
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Deferred: A dict
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"""
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result = yield self._simple_select_one_onecol(
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table="account_data",
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keyvalues={
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"user_id": user_id,
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"account_data_type": data_type,
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},
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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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defer.returnValue(json.loads(result))
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else:
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defer.returnValue(None)
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@cached(num_args=2)
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def get_account_data_for_room(self, user_id, room_id):
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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(str): The user to get the account_data for.
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room_id(str): The room to get the account_data for.
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Returns:
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A deferred 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._simple_select_list_txn(
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txn, "room_account_data", {"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"]: json.loads(row["content"]) for row in rows
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}
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return self.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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def get_account_data_for_room_and_type(self, user_id, room_id, account_data_type):
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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(str): The user to get the account_data for.
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room_id(str): The room to get the account_data for.
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account_data_type (str): The account data type to get.
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Returns:
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A deferred of the room account_data for that type, or None if
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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._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 json.loads(content_json) if content_json else None
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return self.runInteraction(
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"get_account_data_for_room_and_type",
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get_account_data_for_room_and_type_txn,
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)
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def get_all_updated_account_data(self, last_global_id, last_room_id,
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current_id, limit):
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"""Get all the client account_data that has changed on the server
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Args:
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last_global_id(int): The position to fetch from for top level data
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last_room_id(int): The position to fetch from for per room data
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current_id(int): The position to fetch up to.
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Returns:
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A deferred pair of lists of tuples of stream_id int, user_id string,
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room_id string, type string, and content string.
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"""
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if last_room_id == current_id and last_global_id == current_id:
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return defer.succeed(([], []))
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def get_updated_account_data_txn(txn):
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sql = (
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"SELECT stream_id, user_id, account_data_type, content"
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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_global_id, current_id, limit))
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global_results = txn.fetchall()
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sql = (
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"SELECT stream_id, user_id, room_id, account_data_type, content"
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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_room_id, current_id, limit))
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room_results = txn.fetchall()
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return (global_results, room_results)
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return self.runInteraction(
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"get_all_updated_account_data_txn", get_updated_account_data_txn
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)
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def get_updated_account_data_for_user(self, user_id, stream_id):
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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(str): The user to get the account_data for.
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stream_id(int): 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 = {
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row[0]: json.loads(row[1]) for row in txn
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}
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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]] = json.loads(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 self.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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@cachedInlineCallbacks(num_args=2, cache_context=True, max_entries=5000)
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def is_ignored_by(self, ignored_user_id, ignorer_user_id, cache_context):
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ignored_account_data = yield self.get_global_account_data_by_type_for_user(
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"m.ignored_user_list", ignorer_user_id,
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on_invalidate=cache_context.invalidate,
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)
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if not ignored_account_data:
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defer.returnValue(False)
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defer.returnValue(
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ignored_user_id in ignored_account_data.get("ignored_users", {})
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)
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class AccountDataStore(AccountDataWorkerStore):
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def __init__(self, db_conn, hs):
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self._account_data_id_gen = StreamIdGenerator(
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db_conn, "account_data_max_stream_id", "stream_id"
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)
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super(AccountDataStore, self).__init__(db_conn, hs)
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def get_max_account_data_stream_id(self):
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"""Get the current max stream id for the private user data stream
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Returns:
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A deferred int.
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"""
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return self._account_data_id_gen.get_current_token()
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@defer.inlineCallbacks
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def add_account_data_to_room(self, user_id, room_id, account_data_type, content):
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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(str): The user to add a tag for.
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room_id(str): The room to add a tag for.
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account_data_type(str): The type of account_data to add.
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content(dict): A json object to associate with the tag.
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Returns:
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A deferred that completes once the account_data has been added.
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"""
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content_json = json.dumps(content)
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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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yield self._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={
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"stream_id": next_id,
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"content": content_json,
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},
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lock=False,
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)
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# it's theoretically possible for the above to succeed and the
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# below to fail - in which case we might reuse a stream id on
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# restart, and the above update might not get propagated. That
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# doesn't sound any worse than the whole update getting lost,
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# which is what would happen if we combined the two into one
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# transaction.
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yield self._update_max_stream_id(next_id)
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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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result = self._account_data_id_gen.get_current_token()
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defer.returnValue(result)
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@defer.inlineCallbacks
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def add_account_data_for_user(self, user_id, account_data_type, content):
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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(str): The user to add a tag for.
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account_data_type(str): The type of account_data to add.
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content(dict): A json object to associate with the tag.
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Returns:
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A deferred that completes once the account_data has been added.
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"""
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content_json = json.dumps(content)
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with self._account_data_id_gen.get_next() as next_id:
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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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yield self._simple_upsert(
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desc="add_user_account_data",
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table="account_data",
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keyvalues={
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"user_id": user_id,
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"account_data_type": account_data_type,
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},
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values={
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"stream_id": next_id,
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"content": content_json,
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},
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lock=False,
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)
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# it's theoretically possible for the above to succeed and the
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# below to fail - in which case we might reuse a stream id on
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# restart, and the above update might not get propagated. That
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# doesn't sound any worse than the whole update getting lost,
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# which is what would happen if we combined the two into one
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# transaction.
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yield self._update_max_stream_id(next_id)
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self._account_data_stream_cache.entity_has_changed(
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user_id, next_id,
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)
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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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result = self._account_data_id_gen.get_current_token()
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defer.returnValue(result)
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def _update_max_stream_id(self, next_id):
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"""Update the max stream_id
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Args:
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next_id(int): The the revision to advance to.
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"""
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def _update(txn):
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update_max_id_sql = (
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"UPDATE account_data_max_stream_id"
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" SET stream_id = ?"
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" WHERE stream_id < ?"
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)
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txn.execute(update_max_id_sql, (next_id, next_id))
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return self.runInteraction(
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"update_account_data_max_stream_id",
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_update,
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)
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