diff --git a/synapse/api/events/utils.py b/synapse/api/events/utils.py
deleted file mode 100644
index d6019d56eb..0000000000
--- a/synapse/api/events/utils.py
+++ /dev/null
@@ -1,85 +0,0 @@
-# -*- 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,
- RoomAliasesEvent, RoomCreateEvent,
-)
-
-
-def prune_event(event):
- """ Returns a pruned version of the given event, which removes 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.
- """
- event_type = event.type
-
- allowed_keys = [
- "event_id",
- "user_id",
- "room_id",
- "hashes",
- "signatures",
- "content",
- "type",
- "state_key",
- "depth",
- "prev_events",
- "prev_state",
- "auth_events",
- "origin",
- "origin_server_ts",
- ]
-
- 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:
- add_fields(
- "users",
- "users_default",
- "events",
- "events_default",
- "events_default",
- "state_default",
- "ban",
- "kick",
- "redact",
- )
- elif event_type == RoomAliasesEvent.TYPE:
- add_fields("aliases")
-
- allowed_fields = {
- k: v
- for k, v in event.get_full_dict().items()
- if k in allowed_keys
- }
-
- allowed_fields["content"] = new_content
-
- return type(event)(**allowed_fields)
|
