mirror of
https://git.anonymousland.org/anonymousland/synapse.git
synced 2024-12-26 11:09:23 -05:00
72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014 OpenMarket Ltd
|
|
#
|
|
# 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 .room import (
|
|
RoomMemberEvent, RoomJoinRulesEvent, RoomPowerLevelsEvent,
|
|
RoomAddStateLevelEvent, RoomSendEventLevelEvent, RoomOpsPowerLevelsEvent,
|
|
RoomAliasesEvent, RoomCreateEvent,
|
|
)
|
|
|
|
def prune_event(event):
|
|
""" Prunes the given event of all keys we don't know about or think could
|
|
potentially be dodgy.
|
|
|
|
This is used when we "redact" an event. We want to remove all fields that
|
|
the user has specified, but we do want to keep necessary information like
|
|
type, state_key etc.
|
|
"""
|
|
return _prune_event_or_pdu(event.type, event)
|
|
|
|
def prune_pdu(pdu):
|
|
"""Removes keys that contain unrestricted and non-essential data from a PDU
|
|
"""
|
|
return _prune_event_or_pdu(pdu.pdu_type, pdu)
|
|
|
|
def _prune_event_or_pdu(event_type, event):
|
|
# Remove all extraneous fields.
|
|
event.unrecognized_keys = {}
|
|
|
|
new_content = {}
|
|
|
|
def add_fields(*fields):
|
|
for field in fields:
|
|
if field in event.content:
|
|
new_content[field] = event.content[field]
|
|
|
|
if event_type == RoomMemberEvent.TYPE:
|
|
add_fields("membership")
|
|
elif event_type == RoomCreateEvent.TYPE:
|
|
add_fields("creator")
|
|
elif event_type == RoomJoinRulesEvent.TYPE:
|
|
add_fields("join_rule")
|
|
elif event_type == RoomPowerLevelsEvent.TYPE:
|
|
# TODO: Actually check these are valid user_ids etc.
|
|
add_fields("default")
|
|
for k, v in event.content.items():
|
|
if k.startswith("@") and isinstance(v, (int, long)):
|
|
new_content[k] = v
|
|
elif event_type == RoomAddStateLevelEvent.TYPE:
|
|
add_fields("level")
|
|
elif event_type == RoomSendEventLevelEvent.TYPE:
|
|
add_fields("level")
|
|
elif event_type == RoomOpsPowerLevelsEvent.TYPE:
|
|
add_fields("kick_level", "ban_level", "redact_level")
|
|
elif event_type == RoomAliasesEvent.TYPE:
|
|
add_fields("aliases")
|
|
|
|
event.content = new_content
|
|
|
|
return event
|