diff options
Diffstat (limited to 'synapse/handlers/message.py')
| -rw-r--r-- | synapse/handlers/message.py | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 30ea9630f7..59eb26beaf 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -16,7 +16,7 @@ from twisted.internet import defer from synapse.api.constants import EventTypes, Membership -from synapse.api.errors import AuthError, Codes, SynapseError +from synapse.api.errors import AuthError, Codes, SynapseError, LimitExceededError from synapse.crypto.event_signing import add_hashes_and_signatures from synapse.events.utils import serialize_event from synapse.events.validator import EventValidator @@ -239,6 +239,21 @@ class MessageHandler(BaseHandler): "Tried to send member event through non-member codepath" ) + # We check here if we are currently being rate limited, so that we + # don't do unnecessary work. We check again just before we actually + # send the event. + time_now = self.clock.time() + allowed, time_allowed = self.ratelimiter.send_message( + event.sender, time_now, + msg_rate_hz=self.hs.config.rc_messages_per_second, + burst_count=self.hs.config.rc_message_burst_count, + update=False, + ) + if not allowed: + raise LimitExceededError( + retry_after_ms=int(1000 * (time_allowed - time_now)), + ) + user = UserID.from_string(event.sender) assert self.hs.is_mine(user), "User must be our own: %s" % (user,) |