anonymousland-synapse/synapse/app/synchrotron.py
Erik Johnston 98ce212093 Merge pull request #2103 from matrix-org/erikj/no-double-encode
Don't double encode replication data
2017-04-07 09:39:52 +01:00

491 lines
18 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2016 OpenMarket Ltd
#
# 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.
import synapse
from synapse.api.constants import EventTypes
from synapse.config._base import ConfigError
from synapse.config.homeserver import HomeServerConfig
from synapse.config.logger import setup_logging
from synapse.handlers.presence import PresenceHandler
from synapse.http.site import SynapseSite
from synapse.http.server import JsonResource
from synapse.metrics.resource import MetricsResource, METRICS_PREFIX
from synapse.rest.client.v2_alpha import sync
from synapse.rest.client.v1 import events
from synapse.rest.client.v1.room import RoomInitialSyncRestServlet
from synapse.rest.client.v1.initial_sync import InitialSyncRestServlet
from synapse.replication.slave.storage._base import BaseSlavedStore
from synapse.replication.slave.storage.events import SlavedEventStore
from synapse.replication.slave.storage.receipts import SlavedReceiptsStore
from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
from synapse.replication.slave.storage.registration import SlavedRegistrationStore
from synapse.replication.slave.storage.filtering import SlavedFilteringStore
from synapse.replication.slave.storage.push_rule import SlavedPushRuleStore
from synapse.replication.slave.storage.presence import SlavedPresenceStore
from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore
from synapse.replication.slave.storage.devices import SlavedDeviceStore
from synapse.replication.slave.storage.room import RoomStore
from synapse.replication.tcp.client import ReplicationClientHandler
from synapse.server import HomeServer
from synapse.storage.client_ips import ClientIpStore
from synapse.storage.engines import create_engine
from synapse.storage.presence import PresenceStore, UserPresenceState
from synapse.storage.roommember import RoomMemberStore
from synapse.util.httpresourcetree import create_resource_tree
from synapse.util.logcontext import LoggingContext, PreserveLoggingContext, preserve_fn
from synapse.util.manhole import manhole
from synapse.util.rlimit import change_resource_limit
from synapse.util.stringutils import random_string
from synapse.util.versionstring import get_version_string
from twisted.internet import reactor, defer
from twisted.web.resource import Resource
from daemonize import Daemonize
import sys
import logging
import contextlib
import gc
logger = logging.getLogger("synapse.app.synchrotron")
class SynchrotronSlavedStore(
SlavedPushRuleStore,
SlavedEventStore,
SlavedReceiptsStore,
SlavedAccountDataStore,
SlavedApplicationServiceStore,
SlavedRegistrationStore,
SlavedFilteringStore,
SlavedPresenceStore,
SlavedDeviceInboxStore,
SlavedDeviceStore,
RoomStore,
BaseSlavedStore,
ClientIpStore, # After BaseSlavedStore because the constructor is different
):
who_forgot_in_room = (
RoomMemberStore.__dict__["who_forgot_in_room"]
)
did_forget = (
RoomMemberStore.__dict__["did_forget"]
)
# XXX: This is a bit broken because we don't persist the accepted list in a
# way that can be replicated. This means that we don't have a way to
# invalidate the cache correctly.
get_presence_list_accepted = PresenceStore.__dict__[
"get_presence_list_accepted"
]
get_presence_list_observers_accepted = PresenceStore.__dict__[
"get_presence_list_observers_accepted"
]
UPDATE_SYNCING_USERS_MS = 10 * 1000
class SynchrotronPresence(object):
def __init__(self, hs):
self.hs = hs
self.is_mine_id = hs.is_mine_id
self.http_client = hs.get_simple_http_client()
self.store = hs.get_datastore()
self.user_to_num_current_syncs = {}
self.clock = hs.get_clock()
self.notifier = hs.get_notifier()
active_presence = self.store.take_presence_startup_info()
self.user_to_current_state = {
state.user_id: state
for state in active_presence
}
# user_id -> last_sync_ms. Lists the users that have stopped syncing
# but we haven't notified the master of that yet
self.users_going_offline = {}
self._send_stop_syncing_loop = self.clock.looping_call(
self.send_stop_syncing, 10 * 1000
)
self.process_id = random_string(16)
logger.info("Presence process_id is %r", self.process_id)
def send_user_sync(self, user_id, is_syncing, last_sync_ms):
self.hs.get_tcp_replication().send_user_sync(user_id, is_syncing, last_sync_ms)
def mark_as_coming_online(self, user_id):
"""A user has started syncing. Send a UserSync to the master, unless they
had recently stopped syncing.
Args:
user_id (str)
"""
going_offline = self.users_going_offline.pop(user_id, None)
if not going_offline:
# Safe to skip because we haven't yet told the master they were offline
self.send_user_sync(user_id, True, self.clock.time_msec())
def mark_as_going_offline(self, user_id):
"""A user has stopped syncing. We wait before notifying the master as
its likely they'll come back soon. This allows us to avoid sending
a stopped syncing immediately followed by a started syncing notification
to the master
Args:
user_id (str)
"""
self.users_going_offline[user_id] = self.clock.time_msec()
def send_stop_syncing(self):
"""Check if there are any users who have stopped syncing a while ago
and haven't come back yet. If there are poke the master about them.
"""
now = self.clock.time_msec()
for user_id, last_sync_ms in self.users_going_offline.items():
if now - last_sync_ms > 10 * 1000:
self.users_going_offline.pop(user_id, None)
self.send_user_sync(user_id, False, last_sync_ms)
def set_state(self, user, state, ignore_status_msg=False):
# TODO Hows this supposed to work?
pass
get_states = PresenceHandler.get_states.__func__
get_state = PresenceHandler.get_state.__func__
_get_interested_parties = PresenceHandler._get_interested_parties.__func__
current_state_for_users = PresenceHandler.current_state_for_users.__func__
def user_syncing(self, user_id, affect_presence):
if affect_presence:
curr_sync = self.user_to_num_current_syncs.get(user_id, 0)
self.user_to_num_current_syncs[user_id] = curr_sync + 1
# If we went from no in flight sync to some, notify replication
if self.user_to_num_current_syncs[user_id] == 1:
self.mark_as_coming_online(user_id)
def _end():
# We check that the user_id is in user_to_num_current_syncs because
# user_to_num_current_syncs may have been cleared if we are
# shutting down.
if affect_presence and user_id in self.user_to_num_current_syncs:
self.user_to_num_current_syncs[user_id] -= 1
# If we went from one in flight sync to non, notify replication
if self.user_to_num_current_syncs[user_id] == 0:
self.mark_as_going_offline(user_id)
@contextlib.contextmanager
def _user_syncing():
try:
yield
finally:
_end()
return defer.succeed(_user_syncing())
@defer.inlineCallbacks
def notify_from_replication(self, states, stream_id):
parties = yield self._get_interested_parties(
states, calculate_remote_hosts=False
)
room_ids_to_states, users_to_states, _ = parties
self.notifier.on_new_event(
"presence_key", stream_id, rooms=room_ids_to_states.keys(),
users=users_to_states.keys()
)
@defer.inlineCallbacks
def process_replication_rows(self, token, rows):
states = [UserPresenceState(
row.user_id, row.state, row.last_active_ts,
row.last_federation_update_ts, row.last_user_sync_ts, row.status_msg,
row.currently_active
) for row in rows]
for state in states:
self.user_to_current_state[row.user_id] = state
stream_id = token
yield self.notify_from_replication(states, stream_id)
def get_currently_syncing_users(self):
return [
user_id for user_id, count in self.user_to_num_current_syncs.iteritems()
if count > 0
]
class SynchrotronTyping(object):
def __init__(self, hs):
self._latest_room_serial = 0
self._room_serials = {}
self._room_typing = {}
def stream_positions(self):
# We must update this typing token from the response of the previous
# sync. In particular, the stream id may "reset" back to zero/a low
# value which we *must* use for the next replication request.
return {"typing": self._latest_room_serial}
def process_replication_rows(self, token, rows):
self._latest_room_serial = token
for row in rows:
self._room_serials[row.room_id] = token
self._room_typing[row.room_id] = row.user_ids
class SynchrotronApplicationService(object):
def notify_interested_services(self, event):
pass
class SynchrotronServer(HomeServer):
def get_db_conn(self, run_new_connection=True):
# Any param beginning with cp_ is a parameter for adbapi, and should
# not be passed to the database engine.
db_params = {
k: v for k, v in self.db_config.get("args", {}).items()
if not k.startswith("cp_")
}
db_conn = self.database_engine.module.connect(**db_params)
if run_new_connection:
self.database_engine.on_new_connection(db_conn)
return db_conn
def setup(self):
logger.info("Setting up.")
self.datastore = SynchrotronSlavedStore(self.get_db_conn(), self)
logger.info("Finished setting up.")
def _listen_http(self, listener_config):
port = listener_config["port"]
bind_addresses = listener_config["bind_addresses"]
site_tag = listener_config.get("tag", port)
resources = {}
for res in listener_config["resources"]:
for name in res["names"]:
if name == "metrics":
resources[METRICS_PREFIX] = MetricsResource(self)
elif name == "client":
resource = JsonResource(self, canonical_json=False)
sync.register_servlets(self, resource)
events.register_servlets(self, resource)
InitialSyncRestServlet(self).register(resource)
RoomInitialSyncRestServlet(self).register(resource)
resources.update({
"/_matrix/client/r0": resource,
"/_matrix/client/unstable": resource,
"/_matrix/client/v2_alpha": resource,
"/_matrix/client/api/v1": resource,
})
root_resource = create_resource_tree(resources, Resource())
for address in bind_addresses:
reactor.listenTCP(
port,
SynapseSite(
"synapse.access.http.%s" % (site_tag,),
site_tag,
listener_config,
root_resource,
),
interface=address
)
logger.info("Synapse synchrotron now listening on port %d", port)
def start_listening(self, listeners):
for listener in listeners:
if listener["type"] == "http":
self._listen_http(listener)
elif listener["type"] == "manhole":
bind_addresses = listener["bind_addresses"]
for address in bind_addresses:
reactor.listenTCP(
listener["port"],
manhole(
username="matrix",
password="rabbithole",
globals={"hs": self},
),
interface=address
)
else:
logger.warn("Unrecognized listener type: %s", listener["type"])
self.get_tcp_replication().start_replication(self)
def build_tcp_replication(self):
return SyncReplicationHandler(self)
def build_presence_handler(self):
return SynchrotronPresence(self)
def build_typing_handler(self):
return SynchrotronTyping(self)
class SyncReplicationHandler(ReplicationClientHandler):
def __init__(self, hs):
super(SyncReplicationHandler, self).__init__(hs.get_datastore())
self.store = hs.get_datastore()
self.typing_handler = hs.get_typing_handler()
self.presence_handler = hs.get_presence_handler()
self.notifier = hs.get_notifier()
self.presence_handler.sync_callback = self.send_user_sync
def on_rdata(self, stream_name, token, rows):
super(SyncReplicationHandler, self).on_rdata(stream_name, token, rows)
preserve_fn(self.process_and_notify)(stream_name, token, rows)
def get_streams_to_replicate(self):
args = super(SyncReplicationHandler, self).get_streams_to_replicate()
args.update(self.typing_handler.stream_positions())
return args
def get_currently_syncing_users(self):
return self.presence_handler.get_currently_syncing_users()
@defer.inlineCallbacks
def process_and_notify(self, stream_name, token, rows):
if stream_name == "events":
# We shouldn't get multiple rows per token for events stream, so
# we don't need to optimise this for multiple rows.
for row in rows:
event = yield self.store.get_event(row.event_id)
extra_users = ()
if event.type == EventTypes.Member:
extra_users = (event.state_key,)
max_token = self.store.get_room_max_stream_ordering()
self.notifier.on_new_room_event(
event, token, max_token, extra_users
)
elif stream_name == "push_rules":
self.notifier.on_new_event(
"push_rules_key", token, users=[row.user_id for row in rows],
)
elif stream_name in ("account_data", "tag_account_data",):
self.notifier.on_new_event(
"account_data_key", token, users=[row.user_id for row in rows],
)
elif stream_name == "receipts":
self.notifier.on_new_event(
"receipt_key", token, rooms=[row.room_id for row in rows],
)
elif stream_name == "typing":
self.typing_handler.process_replication_rows(token, rows)
self.notifier.on_new_event(
"typing_key", token, rooms=[row.room_id for row in rows],
)
elif stream_name == "to_device":
entities = [row.entity for row in rows if row.entity.startswith("@")]
if entities:
self.notifier.on_new_event(
"to_device_key", token, users=entities,
)
elif stream_name == "device_lists":
all_room_ids = set()
for row in rows:
room_ids = yield self.store.get_rooms_for_user(row.user_id)
all_room_ids.update(room_ids)
self.notifier.on_new_event(
"device_list_key", token, rooms=all_room_ids,
)
elif stream_name == "presence":
yield self.presence_handler.process_replication_rows(token, rows)
def start(config_options):
try:
config = HomeServerConfig.load_config(
"Synapse synchrotron", config_options
)
except ConfigError as e:
sys.stderr.write("\n" + e.message + "\n")
sys.exit(1)
assert config.worker_app == "synapse.app.synchrotron"
setup_logging(config, use_worker_options=True)
synapse.events.USE_FROZEN_DICTS = config.use_frozen_dicts
database_engine = create_engine(config.database_config)
ss = SynchrotronServer(
config.server_name,
db_config=config.database_config,
config=config,
version_string="Synapse/" + get_version_string(synapse),
database_engine=database_engine,
application_service_handler=SynchrotronApplicationService(),
)
ss.setup()
ss.start_listening(config.worker_listeners)
def run():
# make sure that we run the reactor with the sentinel log context,
# otherwise other PreserveLoggingContext instances will get confused
# and complain when they see the logcontext arbitrarily swapping
# between the sentinel and `run` logcontexts.
with PreserveLoggingContext():
logger.info("Running")
change_resource_limit(config.soft_file_limit)
if config.gc_thresholds:
gc.set_threshold(*config.gc_thresholds)
reactor.run()
def start():
ss.get_datastore().start_profiling()
ss.get_state_handler().start_caching()
reactor.callWhenRunning(start)
if config.worker_daemonize:
daemon = Daemonize(
app="synapse-synchrotron",
pid=config.worker_pid_file,
action=run,
auto_close_fds=False,
verbose=True,
logger=logger,
)
daemon.start()
else:
run()
if __name__ == '__main__':
with LoggingContext("main"):
start(sys.argv[1:])