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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"
)
def generate_config_section(self, **kwargs: Any) -> str:
return """\
## Rooms ##
# Controls whether locally-created rooms should be end-to-end encrypted by
# default.
#
# Possible options are "all", "invite", and "off". They are defined as:
#
# * "all": any locally-created room
# * "invite": any room created with the "private_chat" or "trusted_private_chat"
# room creation presets
# * "off": this option will take no effect
#
# The default value is "off".
#
# Note that this option will only affect rooms created after it is set. It
# will also not affect rooms created by other servers.
#
#encryption_enabled_by_default_for_room_type: invite
"""
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