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# Copyright 2020 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.
import logging
from typing import Any
from synapse.api.constants import RoomCreationPreset
from synapse.types import JsonDict
from ._base import Config, ConfigError
logger = logging.Logger(__name__)
class RoomDefaultEncryptionTypes:
"""Possible values for the encryption_enabled_by_default_for_room_type config option"""
ALL = "all"
INVITE = "invite"
OFF = "off"
class RoomConfig(Config):
section = "room"
def read_config(self, config: JsonDict, **kwargs: Any) -> None:
# Whether new, locally-created rooms should have encryption enabled
encryption_for_room_type = config.get(
"encryption_enabled_by_default_for_room_type",
RoomDefaultEncryptionTypes.OFF,
)
if encryption_for_room_type == RoomDefaultEncryptionTypes.ALL:
self.encryption_enabled_by_default_for_room_presets = [
RoomCreationPreset.PRIVATE_CHAT,
RoomCreationPreset.TRUSTED_PRIVATE_CHAT,
RoomCreationPreset.PUBLIC_CHAT,
]
elif encryption_for_room_type == RoomDefaultEncryptionTypes.INVITE:
self.encryption_enabled_by_default_for_room_presets = [
RoomCreationPreset.PRIVATE_CHAT,
RoomCreationPreset.TRUSTED_PRIVATE_CHAT,
]
elif (
encryption_for_room_type == RoomDefaultEncryptionTypes.OFF
or encryption_for_room_type is False
):
# PyYAML translates "off" into False if it's unquoted, so we also need to
# check for encryption_for_room_type being False.
self.encryption_enabled_by_default_for_room_presets = []
else:
raise ConfigError(
"Invalid value for encryption_enabled_by_default_for_room_type"
)
self.default_power_level_content_override = config.get(
"default_power_level_content_override",
None,
)
if self.default_power_level_content_override is not None:
for preset in self.default_power_level_content_override:
if preset not in vars(RoomCreationPreset).values():
raise ConfigError(
"Unrecognised room preset %s in default_power_level_content_override"
% preset
)
# We validate the actual overrides when we try to apply them.
# When enabled, users will forget rooms when they leave them, either via a
# leave, kick or ban.
self.forget_on_leave = config.get("forget_rooms_on_leave", False)
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