diff options
Diffstat (limited to '')
| -rw-r--r-- | synapse/storage/databases/main/account_data.py | 164 | ||||
| -rw-r--r-- | synapse/storage/schema/main/delta/68/03_delete_account_data_for_deactivated_accounts.sql | 20 |
2 files changed, 129 insertions, 55 deletions
diff --git a/synapse/storage/databases/main/account_data.py b/synapse/storage/databases/main/account_data.py index 5bfa408f74..52146aacc8 100644 --- a/synapse/storage/databases/main/account_data.py +++ b/synapse/storage/databases/main/account_data.py @@ -106,6 +106,11 @@ class AccountDataWorkerStore(PushRulesWorkerStore, CacheInvalidationWorkerStore) "AccountDataAndTagsChangeCache", account_max ) + self.db_pool.updates.register_background_update_handler( + "delete_account_data_for_deactivated_users", + self._delete_account_data_for_deactivated_users, + ) + def get_max_account_data_stream_id(self) -> int: """Get the current max stream ID for account data stream @@ -549,72 +554,121 @@ class AccountDataWorkerStore(PushRulesWorkerStore, CacheInvalidationWorkerStore) async def purge_account_data_for_user(self, user_id: str) -> None: """ - Removes the account data for a user. + Removes ALL the account data for a user. + Intended to be used upon user deactivation. - This is intended to be used upon user deactivation and also removes any - derived information from account data (e.g. push rules and ignored users). + Also purges the user from the ignored_users cache table + and the push_rules cache tables. + """ - Args: - user_id: The user ID to remove data for. + await self.db_pool.runInteraction( + "purge_account_data_for_user_txn", + self._purge_account_data_for_user_txn, + user_id, + ) + + def _purge_account_data_for_user_txn( + self, txn: LoggingTransaction, user_id: str + ) -> None: """ + See `purge_account_data_for_user`. + """ + # Purge from the primary account_data tables. + self.db_pool.simple_delete_txn( + txn, table="account_data", keyvalues={"user_id": user_id} + ) - def purge_account_data_for_user_txn(txn: LoggingTransaction) -> None: - # Purge from the primary account_data tables. - self.db_pool.simple_delete_txn( - txn, table="account_data", keyvalues={"user_id": user_id} - ) + self.db_pool.simple_delete_txn( + txn, table="room_account_data", keyvalues={"user_id": user_id} + ) - self.db_pool.simple_delete_txn( - txn, table="room_account_data", keyvalues={"user_id": user_id} - ) + # Purge from ignored_users where this user is the ignorer. + # N.B. We don't purge where this user is the ignoree, because that + # interferes with other users' account data. + # It's also not this user's data to delete! + self.db_pool.simple_delete_txn( + txn, table="ignored_users", keyvalues={"ignorer_user_id": user_id} + ) - # Purge from ignored_users where this user is the ignorer. - # N.B. We don't purge where this user is the ignoree, because that - # interferes with other users' account data. - # It's also not this user's data to delete! - self.db_pool.simple_delete_txn( - txn, table="ignored_users", keyvalues={"ignorer_user_id": user_id} - ) + # Remove the push rules + self.db_pool.simple_delete_txn( + txn, table="push_rules", keyvalues={"user_name": user_id} + ) + self.db_pool.simple_delete_txn( + txn, table="push_rules_enable", keyvalues={"user_name": user_id} + ) + self.db_pool.simple_delete_txn( + txn, table="push_rules_stream", keyvalues={"user_id": user_id} + ) - # Remove the push rules - self.db_pool.simple_delete_txn( - txn, table="push_rules", keyvalues={"user_name": user_id} - ) - self.db_pool.simple_delete_txn( - txn, table="push_rules_enable", keyvalues={"user_name": user_id} - ) - self.db_pool.simple_delete_txn( - txn, table="push_rules_stream", keyvalues={"user_id": user_id} - ) + # Invalidate caches as appropriate + self._invalidate_cache_and_stream( + txn, self.get_account_data_for_room_and_type, (user_id,) + ) + self._invalidate_cache_and_stream( + txn, self.get_account_data_for_user, (user_id,) + ) + self._invalidate_cache_and_stream( + txn, self.get_global_account_data_by_type_for_user, (user_id,) + ) + self._invalidate_cache_and_stream( + txn, self.get_account_data_for_room, (user_id,) + ) + self._invalidate_cache_and_stream(txn, self.get_push_rules_for_user, (user_id,)) + self._invalidate_cache_and_stream( + txn, self.get_push_rules_enabled_for_user, (user_id,) + ) + # This user might be contained in the ignored_by cache for other users, + # so we have to invalidate it all. + self._invalidate_all_cache_and_stream(txn, self.ignored_by) - # Invalidate caches as appropriate - self._invalidate_cache_and_stream( - txn, self.get_account_data_for_room_and_type, (user_id,) - ) - self._invalidate_cache_and_stream( - txn, self.get_account_data_for_user, (user_id,) - ) - self._invalidate_cache_and_stream( - txn, self.get_global_account_data_by_type_for_user, (user_id,) - ) - self._invalidate_cache_and_stream( - txn, self.get_account_data_for_room, (user_id,) - ) - self._invalidate_cache_and_stream( - txn, self.get_push_rules_for_user, (user_id,) - ) - self._invalidate_cache_and_stream( - txn, self.get_push_rules_enabled_for_user, (user_id,) - ) - # This user might be contained in the ignored_by cache for other users, - # so we have to invalidate it all. - self._invalidate_all_cache_and_stream(txn, self.ignored_by) + async def _delete_account_data_for_deactivated_users( + self, progress: dict, batch_size: int + ) -> int: + """ + Retroactively purges account data for users that have already been deactivated. + Gets run as a background update caused by a schema delta. + """ - await self.db_pool.runInteraction( - "purge_account_data_for_user_txn", - purge_account_data_for_user_txn, + last_user: str = progress.get("last_user", "") + + def _delete_account_data_for_deactivated_users_txn( + txn: LoggingTransaction, + ) -> int: + sql = """ + SELECT name FROM users + WHERE deactivated = ? and name > ? + ORDER BY name ASC + LIMIT ? + """ + + txn.execute(sql, (1, last_user, batch_size)) + users = [row[0] for row in txn] + + for user in users: + self._purge_account_data_for_user_txn(txn, user_id=user) + + if users: + self.db_pool.updates._background_update_progress_txn( + txn, + "delete_account_data_for_deactivated_users", + {"last_user": users[-1]}, + ) + + return len(users) + + number_deleted = await self.db_pool.runInteraction( + "_delete_account_data_for_deactivated_users", + _delete_account_data_for_deactivated_users_txn, ) + if number_deleted < batch_size: + await self.db_pool.updates._end_background_update( + "delete_account_data_for_deactivated_users" + ) + + return number_deleted + class AccountDataStore(AccountDataWorkerStore): pass diff --git a/synapse/storage/schema/main/delta/68/03_delete_account_data_for_deactivated_accounts.sql b/synapse/storage/schema/main/delta/68/03_delete_account_data_for_deactivated_accounts.sql new file mode 100644 index 0000000000..e124933843 --- /dev/null +++ b/synapse/storage/schema/main/delta/68/03_delete_account_data_for_deactivated_accounts.sql @@ -0,0 +1,20 @@ +/* Copyright 2021 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. + */ + + +-- We want to retroactively delete account data for users that were already +-- deactivated. +INSERT INTO background_updates (ordering, update_name, progress_json) VALUES + (6803, 'delete_account_data_for_deactivated_users', '{}'); |