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57538eb4d9
Follows on from @H-Shay's great work at https://github.com/matrix-org/synapse/pull/15344 and MSC4026. Also enables its use for MSC3881, mainly as an easy but concrete example of how to use it.
131 lines
4.2 KiB
Python
131 lines
4.2 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2023 The Matrix.org Foundation C.I.C
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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from typing import TYPE_CHECKING, Dict, FrozenSet, List, Tuple, cast
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from synapse.storage.database import (
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DatabasePool,
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LoggingDatabaseConnection,
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LoggingTransaction,
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)
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from synapse.storage.databases.main import CacheInvalidationWorkerStore
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from synapse.util.caches.descriptors import cached
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if TYPE_CHECKING:
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from synapse.rest.admin.experimental_features import ExperimentalFeature
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from synapse.server import HomeServer
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class ExperimentalFeaturesStore(CacheInvalidationWorkerStore):
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def __init__(
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self,
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database: DatabasePool,
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db_conn: LoggingDatabaseConnection,
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hs: "HomeServer",
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) -> None:
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super().__init__(database, db_conn, hs)
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@cached()
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async def list_enabled_features(self, user_id: str) -> FrozenSet[str]:
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"""
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Checks to see what features are enabled for a given user
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Args:
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user:
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the user to be queried on
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Returns:
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the features currently enabled for the user
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"""
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enabled = cast(
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List[Tuple[str]],
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await self.db_pool.simple_select_list(
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table="per_user_experimental_features",
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keyvalues={"user_id": user_id, "enabled": True},
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retcols=("feature",),
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),
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)
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return frozenset(feature[0] for feature in enabled)
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async def set_features_for_user(
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self,
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user: str,
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features: Dict["ExperimentalFeature", bool],
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) -> None:
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"""
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Enables or disables features for a given user
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Args:
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user:
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the user for whom to enable/disable the features
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features:
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pairs of features and True/False for whether the feature should be enabled
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"""
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def set_features_for_user_txn(txn: LoggingTransaction) -> None:
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for feature, enabled in features.items():
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self.db_pool.simple_upsert_txn(
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txn,
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table="per_user_experimental_features",
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keyvalues={"feature": feature, "user_id": user},
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values={"enabled": enabled},
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insertion_values={"user_id": user, "feature": feature},
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)
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self._invalidate_cache_and_stream(
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txn, self.is_feature_enabled, (user, feature)
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)
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self._invalidate_cache_and_stream(txn, self.list_enabled_features, (user,))
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return await self.db_pool.runInteraction(
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"set_features_for_user", set_features_for_user_txn
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)
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@cached()
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async def is_feature_enabled(
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self, user_id: str, feature: "ExperimentalFeature"
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) -> bool:
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"""
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Checks to see if a given feature is enabled for the user
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Args:
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user_id: the user to be queried on
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feature: the feature in question
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Returns:
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True if the feature is enabled, False if it is not or if the feature was
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not found.
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"""
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if feature.is_globally_enabled(self.hs.config):
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return True
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# if it's not enabled globally, check if it is enabled per-user
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res = await self.db_pool.simple_select_one_onecol(
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table="per_user_experimental_features",
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keyvalues={"user_id": user_id, "feature": feature},
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retcol="enabled",
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allow_none=True,
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desc="get_feature_enabled",
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)
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# None and false are treated the same
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db_enabled = bool(res)
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return db_enabled
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