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# -*- coding: utf-8 -*-
# Copyright 2014 matrix.org
#
# 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 twisted.internet import defer
from synapse.api.errors import cs_error, Codes
class BaseHandler(object):
def __init__(self, hs):
self.store = hs.get_datastore()
self.event_factory = hs.get_event_factory()
self.auth = hs.get_auth()
self.notifier = hs.get_notifier()
self.room_lock = hs.get_room_lock_manager()
self.state_handler = hs.get_state_handler()
self.distributor = hs.get_distributor()
self.ratelimiter = hs.get_ratelimiter()
self.clock = hs.get_clock()
self.hs = hs
def ratelimit(self, user_id):
time_now = self.clock.time()
allowed, time_allowed = self.ratelimiter.send_message(
user_id, time_now,
msg_rate_hz=self.hs.config.rc_messages_per_second,
burst_count=self.hs.config.rc_message_burst_count,
)
if not allowed:
raise cs_error(
"Limit exceeded",
Codes.LIMIT_EXCEEDED,
retry_after_ms=1000*(time_allowed - time_now),
)
class BaseRoomHandler(BaseHandler):
@defer.inlineCallbacks
def _on_new_room_event(self, event, snapshot, extra_destinations=[],
extra_users=[]):
snapshot.fill_out_prev_events(event)
yield self.store.persist_event(event)
destinations = set(extra_destinations)
# Send a PDU to all hosts who have joined the room.
destinations.update((yield self.store.get_joined_hosts_for_room(
event.room_id
)))
event.destinations = list(destinations)
self.notifier.on_new_room_event(event, extra_users=extra_users)
federation_handler = self.hs.get_handlers().federation_handler
yield federation_handler.handle_new_event(event, snapshot)
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