forked-synapse/synapse/rest/admin/experimental_features.py

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# Copyright 2023 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.
from enum import Enum
from http import HTTPStatus
from typing import TYPE_CHECKING, Dict, Tuple
from synapse.api.errors import SynapseError
from synapse.http.servlet import RestServlet, parse_json_object_from_request
from synapse.http.site import SynapseRequest
from synapse.rest.admin import admin_patterns, assert_requester_is_admin
from synapse.types import JsonDict, UserID
if TYPE_CHECKING:
from synapse.server import HomeServer
class ExperimentalFeature(str, Enum):
"""
Currently supported per-user features
"""
MSC3026 = "msc3026"
MSC3881 = "msc3881"
MSC3967 = "msc3967"
class ExperimentalFeaturesRestServlet(RestServlet):
"""
Enable or disable experimental features for a user or determine which features are enabled
for a given user
"""
PATTERNS = admin_patterns("/experimental_features/(?P<user_id>[^/]*)")
def __init__(self, hs: "HomeServer"):
super().__init__()
self.auth = hs.get_auth()
self.store = hs.get_datastores().main
self.is_mine = hs.is_mine
async def on_GET(
self,
request: SynapseRequest,
user_id: str,
) -> Tuple[int, JsonDict]:
"""
List which features are enabled for a given user
"""
await assert_requester_is_admin(self.auth, request)
target_user = UserID.from_string(user_id)
if not self.is_mine(target_user):
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"User must be local to check what experimental features are enabled.",
)
enabled_features = await self.store.list_enabled_features(user_id)
user_features = {}
for feature in ExperimentalFeature:
if feature in enabled_features:
user_features[feature] = True
else:
user_features[feature] = False
return HTTPStatus.OK, {"features": user_features}
async def on_PUT(
self, request: SynapseRequest, user_id: str
) -> Tuple[HTTPStatus, Dict]:
"""
Enable or disable the provided features for the requester
"""
await assert_requester_is_admin(self.auth, request)
body = parse_json_object_from_request(request)
target_user = UserID.from_string(user_id)
if not self.is_mine(target_user):
raise SynapseError(
HTTPStatus.BAD_REQUEST,
"User must be local to enable experimental features.",
)
features = body.get("features")
if not features:
raise SynapseError(
HTTPStatus.BAD_REQUEST, "You must provide features to set."
)
# validate the provided features
validated_features = {}
for feature, enabled in features.items():
try:
validated_feature = ExperimentalFeature(feature)
validated_features[validated_feature] = enabled
except ValueError:
raise SynapseError(
HTTPStatus.BAD_REQUEST,
f"{feature!r} is not recognised as a valid experimental feature.",
)
await self.store.set_features_for_user(user_id, validated_features)
return HTTPStatus.OK, {}