diff options
Diffstat (limited to '')
| -rw-r--r-- | changelog.d/8158.feature | 1 | ||||
| -rw-r--r-- | synapse/handlers/message.py | 39 |
2 files changed, 35 insertions, 5 deletions
diff --git a/changelog.d/8158.feature b/changelog.d/8158.feature new file mode 100644 index 0000000000..47c4c39167 --- /dev/null +++ b/changelog.d/8158.feature @@ -0,0 +1 @@ + Add support for shadow-banning users (ignoring any message send requests). diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 593c0cc6f1..02d624268b 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -647,24 +647,35 @@ class EventCreationHandler(object): event: EventBase, context: EventContext, ratelimit: bool = True, + ignore_shadow_ban: bool = False, ) -> int: """ Persists and notifies local clients and federation of an event. Args: - requester - event the event to send. - context: the context of the event. + requester: The requester sending the event. + event: The event to send. + context: The context of the event. ratelimit: Whether to rate limit this send. + ignore_shadow_ban: True if shadow-banned users should be allowed to + send this event. Return: The stream_id of the persisted event. + + Raises: + ShadowBanError if the requester has been shadow-banned. """ if event.type == EventTypes.Member: raise SynapseError( 500, "Tried to send member event through non-member codepath" ) + if not ignore_shadow_ban and requester.shadow_banned: + # We randomly sleep a bit just to annoy the requester. + await self.clock.sleep(random.randint(1, 10)) + raise ShadowBanError() + user = UserID.from_string(event.sender) assert self.hs.is_mine(user), "User must be our own: %s" % (user,) @@ -725,6 +736,14 @@ class EventCreationHandler(object): See self.create_event and self.send_nonmember_event. + Args: + requester: The requester sending the event. + event_dict: An entire event. + ratelimit: Whether to rate limit this send. + txn_id: The transaction ID. + ignore_shadow_ban: True if shadow-banned users should be allowed to + send this event. + Raises: ShadowBanError if the requester has been shadow-banned. """ @@ -750,7 +769,11 @@ class EventCreationHandler(object): raise SynapseError(403, spam_error, Codes.FORBIDDEN) stream_id = await self.send_nonmember_event( - requester, event, context, ratelimit=ratelimit + requester, + event, + context, + ratelimit=ratelimit, + ignore_shadow_ban=ignore_shadow_ban, ) return event, stream_id @@ -1190,8 +1213,14 @@ class EventCreationHandler(object): event.internal_metadata.proactively_send = False + # Since this is a dummy-event it is OK if it is sent by a + # shadow-banned user. await self.send_nonmember_event( - requester, event, context, ratelimit=False + requester, + event, + context, + ratelimit=False, + ignore_shadow_ban=True, ) dummy_event_sent = True break |