465 lines
18 KiB
Python
465 lines
18 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import contextlib
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import logging
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import sys
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from six import iteritems
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from twisted.internet import defer, reactor
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from twisted.web.resource import NoResource
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import synapse
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from synapse.api.constants import EventTypes
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from synapse.app import _base
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from synapse.config._base import ConfigError
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from synapse.config.homeserver import HomeServerConfig
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from synapse.config.logger import setup_logging
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from synapse.handlers.presence import PresenceHandler, get_interested_parties
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from synapse.http.server import JsonResource
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from synapse.http.site import SynapseSite
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from synapse.logging.context import LoggingContext, run_in_background
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from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
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from synapse.replication.slave.storage._base import BaseSlavedStore, __func__
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from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
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from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
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from synapse.replication.slave.storage.client_ips import SlavedClientIpStore
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from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore
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from synapse.replication.slave.storage.devices import SlavedDeviceStore
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from synapse.replication.slave.storage.events import SlavedEventStore
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from synapse.replication.slave.storage.filtering import SlavedFilteringStore
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from synapse.replication.slave.storage.groups import SlavedGroupServerStore
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from synapse.replication.slave.storage.presence import SlavedPresenceStore
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from synapse.replication.slave.storage.push_rule import SlavedPushRuleStore
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from synapse.replication.slave.storage.receipts import SlavedReceiptsStore
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from synapse.replication.slave.storage.registration import SlavedRegistrationStore
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from synapse.replication.slave.storage.room import RoomStore
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from synapse.replication.tcp.client import ReplicationClientHandler
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from synapse.replication.tcp.streams.events import EventsStreamEventRow, EventsStreamRow
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from synapse.rest.client.v1 import events
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from synapse.rest.client.v1.initial_sync import InitialSyncRestServlet
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from synapse.rest.client.v1.room import RoomInitialSyncRestServlet
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from synapse.rest.client.v2_alpha import sync
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from synapse.server import HomeServer
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from synapse.storage.data_stores.main.presence import UserPresenceState
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from synapse.util.httpresourcetree import create_resource_tree
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from synapse.util.manhole import manhole
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from synapse.util.stringutils import random_string
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from synapse.util.versionstring import get_version_string
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logger = logging.getLogger("synapse.app.synchrotron")
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class SynchrotronSlavedStore(
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SlavedReceiptsStore,
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SlavedAccountDataStore,
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SlavedApplicationServiceStore,
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SlavedRegistrationStore,
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SlavedFilteringStore,
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SlavedPresenceStore,
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SlavedGroupServerStore,
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SlavedDeviceInboxStore,
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SlavedDeviceStore,
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SlavedPushRuleStore,
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SlavedEventStore,
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SlavedClientIpStore,
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RoomStore,
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BaseSlavedStore,
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):
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pass
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UPDATE_SYNCING_USERS_MS = 10 * 1000
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class SynchrotronPresence(object):
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def __init__(self, hs):
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self.hs = hs
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self.is_mine_id = hs.is_mine_id
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self.http_client = hs.get_simple_http_client()
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self.store = hs.get_datastore()
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self.user_to_num_current_syncs = {}
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self.clock = hs.get_clock()
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self.notifier = hs.get_notifier()
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active_presence = self.store.take_presence_startup_info()
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self.user_to_current_state = {state.user_id: state for state in active_presence}
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# user_id -> last_sync_ms. Lists the users that have stopped syncing
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# but we haven't notified the master of that yet
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self.users_going_offline = {}
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self._send_stop_syncing_loop = self.clock.looping_call(
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self.send_stop_syncing, 10 * 1000
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)
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self.process_id = random_string(16)
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logger.info("Presence process_id is %r", self.process_id)
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def send_user_sync(self, user_id, is_syncing, last_sync_ms):
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if self.hs.config.use_presence:
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self.hs.get_tcp_replication().send_user_sync(
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user_id, is_syncing, last_sync_ms
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)
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def mark_as_coming_online(self, user_id):
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"""A user has started syncing. Send a UserSync to the master, unless they
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had recently stopped syncing.
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Args:
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user_id (str)
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"""
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going_offline = self.users_going_offline.pop(user_id, None)
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if not going_offline:
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# Safe to skip because we haven't yet told the master they were offline
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self.send_user_sync(user_id, True, self.clock.time_msec())
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def mark_as_going_offline(self, user_id):
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"""A user has stopped syncing. We wait before notifying the master as
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its likely they'll come back soon. This allows us to avoid sending
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a stopped syncing immediately followed by a started syncing notification
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to the master
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Args:
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user_id (str)
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"""
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self.users_going_offline[user_id] = self.clock.time_msec()
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def send_stop_syncing(self):
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"""Check if there are any users who have stopped syncing a while ago
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and haven't come back yet. If there are poke the master about them.
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"""
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now = self.clock.time_msec()
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for user_id, last_sync_ms in list(self.users_going_offline.items()):
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if now - last_sync_ms > 10 * 1000:
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self.users_going_offline.pop(user_id, None)
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self.send_user_sync(user_id, False, last_sync_ms)
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def set_state(self, user, state, ignore_status_msg=False):
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# TODO Hows this supposed to work?
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return defer.succeed(None)
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get_states = __func__(PresenceHandler.get_states)
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get_state = __func__(PresenceHandler.get_state)
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current_state_for_users = __func__(PresenceHandler.current_state_for_users)
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def user_syncing(self, user_id, affect_presence):
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if affect_presence:
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curr_sync = self.user_to_num_current_syncs.get(user_id, 0)
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self.user_to_num_current_syncs[user_id] = curr_sync + 1
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# If we went from no in flight sync to some, notify replication
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if self.user_to_num_current_syncs[user_id] == 1:
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self.mark_as_coming_online(user_id)
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def _end():
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# We check that the user_id is in user_to_num_current_syncs because
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# user_to_num_current_syncs may have been cleared if we are
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# shutting down.
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if affect_presence and user_id in self.user_to_num_current_syncs:
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self.user_to_num_current_syncs[user_id] -= 1
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# If we went from one in flight sync to non, notify replication
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if self.user_to_num_current_syncs[user_id] == 0:
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self.mark_as_going_offline(user_id)
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@contextlib.contextmanager
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def _user_syncing():
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try:
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yield
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finally:
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_end()
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return defer.succeed(_user_syncing())
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@defer.inlineCallbacks
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def notify_from_replication(self, states, stream_id):
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parties = yield get_interested_parties(self.store, states)
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room_ids_to_states, users_to_states = parties
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self.notifier.on_new_event(
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"presence_key",
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stream_id,
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rooms=room_ids_to_states.keys(),
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users=users_to_states.keys(),
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)
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@defer.inlineCallbacks
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def process_replication_rows(self, token, rows):
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states = [
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UserPresenceState(
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row.user_id,
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row.state,
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row.last_active_ts,
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row.last_federation_update_ts,
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row.last_user_sync_ts,
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row.status_msg,
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row.currently_active,
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)
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for row in rows
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]
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for state in states:
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self.user_to_current_state[state.user_id] = state
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stream_id = token
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yield self.notify_from_replication(states, stream_id)
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def get_currently_syncing_users(self):
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if self.hs.config.use_presence:
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return [
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user_id
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for user_id, count in iteritems(self.user_to_num_current_syncs)
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if count > 0
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]
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else:
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return set()
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class SynchrotronTyping(object):
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def __init__(self, hs):
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self._latest_room_serial = 0
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self._reset()
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def _reset(self):
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"""
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Reset the typing handler's data caches.
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"""
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# map room IDs to serial numbers
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self._room_serials = {}
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# map room IDs to sets of users currently typing
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self._room_typing = {}
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def stream_positions(self):
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# We must update this typing token from the response of the previous
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# sync. In particular, the stream id may "reset" back to zero/a low
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# value which we *must* use for the next replication request.
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return {"typing": self._latest_room_serial}
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def process_replication_rows(self, token, rows):
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if self._latest_room_serial > token:
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# The master has gone backwards. To prevent inconsistent data, just
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# clear everything.
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self._reset()
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# Set the latest serial token to whatever the server gave us.
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self._latest_room_serial = token
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for row in rows:
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self._room_serials[row.room_id] = token
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self._room_typing[row.room_id] = row.user_ids
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class SynchrotronApplicationService(object):
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def notify_interested_services(self, event):
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pass
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class SynchrotronServer(HomeServer):
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DATASTORE_CLASS = SynchrotronSlavedStore
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def _listen_http(self, listener_config):
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port = listener_config["port"]
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bind_addresses = listener_config["bind_addresses"]
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site_tag = listener_config.get("tag", port)
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resources = {}
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for res in listener_config["resources"]:
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for name in res["names"]:
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if name == "metrics":
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resources[METRICS_PREFIX] = MetricsResource(RegistryProxy)
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elif name == "client":
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resource = JsonResource(self, canonical_json=False)
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sync.register_servlets(self, resource)
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events.register_servlets(self, resource)
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InitialSyncRestServlet(self).register(resource)
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RoomInitialSyncRestServlet(self).register(resource)
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resources.update(
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{
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"/_matrix/client/r0": resource,
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"/_matrix/client/unstable": resource,
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"/_matrix/client/v2_alpha": resource,
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"/_matrix/client/api/v1": resource,
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}
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)
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root_resource = create_resource_tree(resources, NoResource())
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_base.listen_tcp(
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bind_addresses,
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port,
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SynapseSite(
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"synapse.access.http.%s" % (site_tag,),
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site_tag,
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listener_config,
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root_resource,
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self.version_string,
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),
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)
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logger.info("Synapse synchrotron now listening on port %d", port)
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def start_listening(self, listeners):
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for listener in listeners:
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if listener["type"] == "http":
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self._listen_http(listener)
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elif listener["type"] == "manhole":
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_base.listen_tcp(
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listener["bind_addresses"],
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listener["port"],
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manhole(
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username="matrix", password="rabbithole", globals={"hs": self}
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),
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)
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elif listener["type"] == "metrics":
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if not self.get_config().enable_metrics:
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logger.warning(
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(
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"Metrics listener configured, but "
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"enable_metrics is not True!"
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)
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)
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else:
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_base.listen_metrics(listener["bind_addresses"], listener["port"])
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else:
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logger.warning("Unrecognized listener type: %s", listener["type"])
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self.get_tcp_replication().start_replication(self)
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def build_tcp_replication(self):
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return SyncReplicationHandler(self)
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def build_presence_handler(self):
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return SynchrotronPresence(self)
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def build_typing_handler(self):
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return SynchrotronTyping(self)
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class SyncReplicationHandler(ReplicationClientHandler):
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def __init__(self, hs):
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super(SyncReplicationHandler, self).__init__(hs.get_datastore())
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self.store = hs.get_datastore()
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self.typing_handler = hs.get_typing_handler()
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# NB this is a SynchrotronPresence, not a normal PresenceHandler
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self.presence_handler = hs.get_presence_handler()
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self.notifier = hs.get_notifier()
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@defer.inlineCallbacks
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def on_rdata(self, stream_name, token, rows):
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yield super(SyncReplicationHandler, self).on_rdata(stream_name, token, rows)
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run_in_background(self.process_and_notify, stream_name, token, rows)
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def get_streams_to_replicate(self):
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args = super(SyncReplicationHandler, self).get_streams_to_replicate()
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args.update(self.typing_handler.stream_positions())
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return args
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def get_currently_syncing_users(self):
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return self.presence_handler.get_currently_syncing_users()
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async def process_and_notify(self, stream_name, token, rows):
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try:
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if stream_name == "events":
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# We shouldn't get multiple rows per token for events stream, so
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# we don't need to optimise this for multiple rows.
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for row in rows:
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if row.type != EventsStreamEventRow.TypeId:
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continue
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assert isinstance(row, EventsStreamRow)
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event = await self.store.get_event(
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row.data.event_id, allow_rejected=True
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)
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if event.rejected_reason:
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continue
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extra_users = ()
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if event.type == EventTypes.Member:
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extra_users = (event.state_key,)
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max_token = self.store.get_room_max_stream_ordering()
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self.notifier.on_new_room_event(
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event, token, max_token, extra_users
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)
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elif stream_name == "push_rules":
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self.notifier.on_new_event(
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"push_rules_key", token, users=[row.user_id for row in rows]
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)
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elif stream_name in ("account_data", "tag_account_data"):
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self.notifier.on_new_event(
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"account_data_key", token, users=[row.user_id for row in rows]
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)
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elif stream_name == "receipts":
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self.notifier.on_new_event(
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"receipt_key", token, rooms=[row.room_id for row in rows]
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)
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elif stream_name == "typing":
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self.typing_handler.process_replication_rows(token, rows)
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self.notifier.on_new_event(
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"typing_key", token, rooms=[row.room_id for row in rows]
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)
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elif stream_name == "to_device":
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entities = [row.entity for row in rows if row.entity.startswith("@")]
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if entities:
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self.notifier.on_new_event("to_device_key", token, users=entities)
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elif stream_name == "device_lists":
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all_room_ids = set()
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for row in rows:
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room_ids = await self.store.get_rooms_for_user(row.user_id)
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all_room_ids.update(room_ids)
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self.notifier.on_new_event("device_list_key", token, rooms=all_room_ids)
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elif stream_name == "presence":
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await self.presence_handler.process_replication_rows(token, rows)
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elif stream_name == "receipts":
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self.notifier.on_new_event(
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"groups_key", token, users=[row.user_id for row in rows]
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)
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except Exception:
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logger.exception("Error processing replication")
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def start(config_options):
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try:
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config = HomeServerConfig.load_config("Synapse synchrotron", config_options)
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except ConfigError as e:
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sys.stderr.write("\n" + str(e) + "\n")
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sys.exit(1)
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assert config.worker_app == "synapse.app.synchrotron"
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synapse.events.USE_FROZEN_DICTS = config.use_frozen_dicts
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ss = SynchrotronServer(
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config.server_name,
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config=config,
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version_string="Synapse/" + get_version_string(synapse),
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application_service_handler=SynchrotronApplicationService(),
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)
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setup_logging(ss, config, use_worker_options=True)
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ss.setup()
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reactor.addSystemEventTrigger(
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"before", "startup", _base.start, ss, config.worker_listeners
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)
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_base.start_worker_reactor("synapse-synchrotron", config)
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if __name__ == "__main__":
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with LoggingContext("main"):
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start(sys.argv[1:])
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