Skip, rather than erroring, invalid guest requests

Erroring causes problems when people make illegal requests, because they
don't know what limit parameter they should pass.

This is definitely buggy. It leaks message counts for rooms people don't
have permission to see, via tokens. But apparently we already
consciously decided to allow that as a team, so this preserves that
behaviour.
This commit is contained in:
Daniel Wagner-Hall 2016-01-05 18:12:37 +00:00 committed by Richard van der Hoff
parent c110eb92f8
commit 93afb40cd4
5 changed files with 5 additions and 21 deletions

View file

@ -1,5 +1,5 @@
# -*- coding: utf-8 -*-
# Copyright 2014, 2015 OpenMarket Ltd
# Copyright 2014 - 2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@ -52,8 +52,7 @@ class BaseHandler(object):
self.event_builder_factory = hs.get_event_builder_factory()
@defer.inlineCallbacks
def _filter_events_for_client(self, user_id, events, is_guest=False,
require_all_visible_for_guests=True):
def _filter_events_for_client(self, user_id, events, is_guest=False):
# Assumes that user has at some point joined the room if not is_guest.
def allowed(event, membership, visibility):
@ -114,17 +113,6 @@ class BaseHandler(object):
if should_include:
events_to_return.append(event)
if (require_all_visible_for_guests
and is_guest
and len(events_to_return) < len(events)):
# This indicates that some events in the requested range were not
# visible to guest users. To be safe, we reject the entire request,
# so that we don't have to worry about interpreting visibility
# boundaries.
raise AuthError(403, "User %s does not have permission" % (
user_id
))
defer.returnValue(events_to_return)
def ratelimit(self, user_id):

View file

@ -1,5 +1,5 @@
# -*- coding: utf-8 -*-
# Copyright 2014, 2015 OpenMarket Ltd
# Copyright 2014 - 2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@ -685,7 +685,7 @@ class MessageHandler(BaseHandler):
).addErrback(unwrapFirstError)
messages = yield self._filter_events_for_client(
user_id, messages, is_guest=is_guest, require_all_visible_for_guests=False
user_id, messages, is_guest=is_guest,
)
start_token = now_token.copy_and_replace("room_key", token[0])

View file

@ -879,14 +879,12 @@ class RoomContextHandler(BaseHandler):
user.to_string(),
results["events_before"],
is_guest=is_guest,
require_all_visible_for_guests=False
)
results["events_after"] = yield self._filter_events_for_client(
user.to_string(),
results["events_after"],
is_guest=is_guest,
require_all_visible_for_guests=False
)
if results["events_after"]:

View file

@ -648,7 +648,6 @@ class SyncHandler(BaseHandler):
sync_config.user.to_string(),
loaded_recents,
is_guest=sync_config.is_guest,
require_all_visible_for_guests=False
)
loaded_recents.extend(recents)
recents = loaded_recents

View file

@ -1,5 +1,5 @@
# -*- coding: utf-8 -*-
# Copyright 2014, 2015 OpenMarket Ltd
# Copyright 2014 - 2016 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@ -386,7 +386,6 @@ class Notifier(object):
user.to_string(),
new_events,
is_guest=is_guest,
require_all_visible_for_guests=False
)
events.extend(new_events)