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# 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.
import logging
from typing import Iterable
from synapse.api.constants import EventTypes
from synapse.config._base import Config, ConfigError
from synapse.config._util import validate_config
from synapse.types import JsonDict
logger = logging.getLogger(__name__)
class ApiConfig(Config):
section = "api"
def read_config(self, config: JsonDict, **kwargs):
validate_config(_MAIN_SCHEMA, config, ())
self.room_prejoin_state = list(self._get_prejoin_state_types(config))
def generate_config_section(cls, **kwargs) -> str:
formatted_default_state_types = "\n".join(
" # - %s" % (t,) for t in _DEFAULT_PREJOIN_STATE_TYPES
)
return """\
## API Configuration ##
# Controls for the state that is shared with users who receive an invite
# to a room
#
room_prejoin_state:
# By default, the following state event types are shared with users who
# receive invites to the room:
#
%(formatted_default_state_types)s
#
# Uncomment the following to disable these defaults (so that only the event
# types listed in 'additional_event_types' are shared). Defaults to 'false'.
#
#disable_default_event_types: true
# Additional state event types to share with users when they are invited
# to a room.
#
# By default, this list is empty (so only the default event types are shared).
#
#additional_event_types:
# - org.example.custom.event.type
""" % {
"formatted_default_state_types": formatted_default_state_types
}
def _get_prejoin_state_types(self, config: JsonDict) -> Iterable[str]:
"""Get the event types to include in the prejoin state
Parses the config and returns an iterable of the event types to be included.
"""
room_prejoin_state_config = config.get("room_prejoin_state") or {}
# backwards-compatibility support for room_invite_state_types
if "room_invite_state_types" in config:
# if both "room_invite_state_types" and "room_prejoin_state" are set, then
# we don't really know what to do.
if room_prejoin_state_config:
raise ConfigError(
"Can't specify both 'room_invite_state_types' and 'room_prejoin_state' "
"in config"
)
logger.warning(_ROOM_INVITE_STATE_TYPES_WARNING)
yield from config["room_invite_state_types"]
return
if not room_prejoin_state_config.get("disable_default_event_types"):
yield from _DEFAULT_PREJOIN_STATE_TYPES
yield from room_prejoin_state_config.get("additional_event_types", [])
_ROOM_INVITE_STATE_TYPES_WARNING = """\
WARNING: The 'room_invite_state_types' configuration setting is now deprecated,
and replaced with 'room_prejoin_state'. New features may not work correctly
unless 'room_invite_state_types' is removed. See the sample configuration file for
details of 'room_prejoin_state'.
--------------------------------------------------------------------------------
"""
_DEFAULT_PREJOIN_STATE_TYPES = [
EventTypes.JoinRules,
EventTypes.CanonicalAlias,
EventTypes.RoomAvatar,
EventTypes.RoomEncryption,
EventTypes.Name,
# Per MSC1772.
EventTypes.Create,
]
# room_prejoin_state can either be None (as it is in the default config), or
# an object containing other config settings
_ROOM_PREJOIN_STATE_CONFIG_SCHEMA = {
"oneOf": [
{
"type": "object",
"properties": {
"disable_default_event_types": {"type": "boolean"},
"additional_event_types": {
"type": "array",
"items": {"type": "string"},
},
},
},
{"type": "null"},
]
}
# the legacy room_invite_state_types setting
_ROOM_INVITE_STATE_TYPES_SCHEMA = {"type": "array", "items": {"type": "string"}}
_MAIN_SCHEMA = {
"type": "object",
"properties": {
"room_prejoin_state": _ROOM_PREJOIN_STATE_CONFIG_SCHEMA,
"room_invite_state_types": _ROOM_INVITE_STATE_TYPES_SCHEMA,
},
}
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