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Don't filter out dummy events when we're checking the visibility of state

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This commit is contained in:
Brendan Abolivier 2020-03-11 15:21:25 +00:00
parent 54dd28621b
commit 69ce55c510
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2 changed files with 8 additions and 9 deletions
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2
synapse/handlers/message.py
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@ -160,7 +160,7 @@ class MessageHandler(object):
raise NotFoundError("Can't find event for token %s" % (at_token,))
visible_events = yield filter_events_for_client(
self.storage, user_id, last_events, apply_retention_policies=False
self.storage, user_id, last_events, filter_send_to_client=False
)
event = last_events[0]

15
synapse/visibility.py
View file

@ -49,7 +49,7 @@ def filter_events_for_client(
events,
is_peeking=False,
always_include_ids=frozenset(),
apply_retention_policies=True,
filter_send_to_client=True,
):
"""
Check which events a user is allowed to see. If the user can see the event but its
@ -65,10 +65,9 @@ def filter_events_for_client(
events
always_include_ids (set(event_id)): set of event ids to specifically
include (unless sender is ignored)
apply_retention_policies (bool): Whether to filter out events that's older than
allowed by the room's retention policy. Useful when this function is called
to e.g. check whether a user should be allowed to see the state at a given
event rather than to know if it should send an event to a user's client(s).
filter_send_to_client (bool): Whether we're checking an event that's going to be
sent to a client. This might not always be the case since this function can
also be called to check whether a user can see the state at a given point.
Returns:
Deferred[list[synapse.events.EventBase]]
@ -96,7 +95,7 @@ def filter_events_for_client(
erased_senders = yield storage.main.are_users_erased((e.sender for e in events))
if apply_retention_policies:
if not filter_send_to_client:
room_ids = {e.room_id for e in events}
retention_policies = {}
@ -119,7 +118,7 @@ def filter_events_for_client(
the original event if they can see it as normal.
"""
if event.type == "org.matrix.dummy_event":
if event.type == "org.matrix.dummy_event" and filter_send_to_client:
return None
if not event.is_state() and event.sender in ignore_list:
@ -134,7 +133,7 @@ def filter_events_for_client(
# Don't try to apply the room's retention policy if the event is a state event, as
# MSC1763 states that retention is only considered for non-state events.
if apply_retention_policies and not event.is_state():
if filter_send_to_client and not event.is_state():
retention_policy = retention_policies[event.room_id]
max_lifetime = retention_policy.get("max_lifetime")