mirror of
https://git.anonymousland.org/anonymousland/synapse.git
synced 2024-09-06 23:11:58 +00:00
389 lines
14 KiB
Python
389 lines
14 KiB
Python
![]() |
# -*- coding: utf-8 -*-
|
||
|
# Copyright 2019 New Vector 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 logging
|
||
|
|
||
|
from six import itervalues
|
||
|
|
||
|
from prometheus_client import Counter
|
||
|
|
||
|
from twisted.internet import defer
|
||
|
|
||
|
import synapse.metrics
|
||
|
from synapse.federation.sender.per_destination_queue import PerDestinationQueue
|
||
|
from synapse.federation.sender.transaction_manager import TransactionManager
|
||
|
from synapse.federation.units import Edu
|
||
|
from synapse.handlers.presence import get_interested_remotes
|
||
|
from synapse.metrics import (
|
||
|
LaterGauge,
|
||
|
event_processing_loop_counter,
|
||
|
event_processing_loop_room_count,
|
||
|
events_processed_counter,
|
||
|
)
|
||
|
from synapse.metrics.background_process_metrics import run_as_background_process
|
||
|
from synapse.util import logcontext
|
||
|
from synapse.util.metrics import measure_func
|
||
|
|
||
|
logger = logging.getLogger(__name__)
|
||
|
|
||
|
sent_pdus_destination_dist_count = Counter(
|
||
|
"synapse_federation_client_sent_pdu_destinations:count",
|
||
|
"Number of PDUs queued for sending to one or more destinations",
|
||
|
)
|
||
|
|
||
|
sent_pdus_destination_dist_total = Counter(
|
||
|
"synapse_federation_client_sent_pdu_destinations:total", ""
|
||
|
"Total number of PDUs queued for sending across all destinations",
|
||
|
)
|
||
|
|
||
|
|
||
|
class FederationSender(object):
|
||
|
def __init__(self, hs):
|
||
|
self.hs = hs
|
||
|
self.server_name = hs.hostname
|
||
|
|
||
|
self.store = hs.get_datastore()
|
||
|
self.state = hs.get_state_handler()
|
||
|
|
||
|
self.clock = hs.get_clock()
|
||
|
self.is_mine_id = hs.is_mine_id
|
||
|
|
||
|
self._transaction_manager = TransactionManager(hs)
|
||
|
|
||
|
# map from destination to PerDestinationQueue
|
||
|
self._per_destination_queues = {} # type: dict[str, PerDestinationQueue]
|
||
|
|
||
|
LaterGauge(
|
||
|
"synapse_federation_transaction_queue_pending_destinations",
|
||
|
"",
|
||
|
[],
|
||
|
lambda: sum(
|
||
|
1 for d in self._per_destination_queues.values()
|
||
|
if d.transmission_loop_running
|
||
|
),
|
||
|
)
|
||
|
|
||
|
# Map of user_id -> UserPresenceState for all the pending presence
|
||
|
# to be sent out by user_id. Entries here get processed and put in
|
||
|
# pending_presence_by_dest
|
||
|
self.pending_presence = {}
|
||
|
|
||
|
LaterGauge(
|
||
|
"synapse_federation_transaction_queue_pending_pdus",
|
||
|
"",
|
||
|
[],
|
||
|
lambda: sum(
|
||
|
d.pending_pdu_count() for d in self._per_destination_queues.values()
|
||
|
),
|
||
|
)
|
||
|
LaterGauge(
|
||
|
"synapse_federation_transaction_queue_pending_edus",
|
||
|
"",
|
||
|
[],
|
||
|
lambda: sum(
|
||
|
d.pending_edu_count() for d in self._per_destination_queues.values()
|
||
|
),
|
||
|
)
|
||
|
|
||
|
self._order = 1
|
||
|
|
||
|
self._is_processing = False
|
||
|
self._last_poked_id = -1
|
||
|
|
||
|
self._processing_pending_presence = False
|
||
|
|
||
|
def _get_per_destination_queue(self, destination):
|
||
|
queue = self._per_destination_queues.get(destination)
|
||
|
if not queue:
|
||
|
queue = PerDestinationQueue(self.hs, self._transaction_manager, destination)
|
||
|
self._per_destination_queues[destination] = queue
|
||
|
return queue
|
||
|
|
||
|
def notify_new_events(self, current_id):
|
||
|
"""This gets called when we have some new events we might want to
|
||
|
send out to other servers.
|
||
|
"""
|
||
|
self._last_poked_id = max(current_id, self._last_poked_id)
|
||
|
|
||
|
if self._is_processing:
|
||
|
return
|
||
|
|
||
|
# fire off a processing loop in the background
|
||
|
run_as_background_process(
|
||
|
"process_event_queue_for_federation",
|
||
|
self._process_event_queue_loop,
|
||
|
)
|
||
|
|
||
|
@defer.inlineCallbacks
|
||
|
def _process_event_queue_loop(self):
|
||
|
try:
|
||
|
self._is_processing = True
|
||
|
while True:
|
||
|
last_token = yield self.store.get_federation_out_pos("events")
|
||
|
next_token, events = yield self.store.get_all_new_events_stream(
|
||
|
last_token, self._last_poked_id, limit=100,
|
||
|
)
|
||
|
|
||
|
logger.debug("Handling %s -> %s", last_token, next_token)
|
||
|
|
||
|
if not events and next_token >= self._last_poked_id:
|
||
|
break
|
||
|
|
||
|
@defer.inlineCallbacks
|
||
|
def handle_event(event):
|
||
|
# Only send events for this server.
|
||
|
send_on_behalf_of = event.internal_metadata.get_send_on_behalf_of()
|
||
|
is_mine = self.is_mine_id(event.sender)
|
||
|
if not is_mine and send_on_behalf_of is None:
|
||
|
return
|
||
|
|
||
|
try:
|
||
|
# Get the state from before the event.
|
||
|
# We need to make sure that this is the state from before
|
||
|
# the event and not from after it.
|
||
|
# Otherwise if the last member on a server in a room is
|
||
|
# banned then it won't receive the event because it won't
|
||
|
# be in the room after the ban.
|
||
|
destinations = yield self.state.get_current_hosts_in_room(
|
||
|
event.room_id, latest_event_ids=event.prev_event_ids(),
|
||
|
)
|
||
|
except Exception:
|
||
|
logger.exception(
|
||
|
"Failed to calculate hosts in room for event: %s",
|
||
|
event.event_id,
|
||
|
)
|
||
|
return
|
||
|
|
||
|
destinations = set(destinations)
|
||
|
|
||
|
if send_on_behalf_of is not None:
|
||
|
# If we are sending the event on behalf of another server
|
||
|
# then it already has the event and there is no reason to
|
||
|
# send the event to it.
|
||
|
destinations.discard(send_on_behalf_of)
|
||
|
|
||
|
logger.debug("Sending %s to %r", event, destinations)
|
||
|
|
||
|
self._send_pdu(event, destinations)
|
||
|
|
||
|
@defer.inlineCallbacks
|
||
|
def handle_room_events(events):
|
||
|
for event in events:
|
||
|
yield handle_event(event)
|
||
|
|
||
|
events_by_room = {}
|
||
|
for event in events:
|
||
|
events_by_room.setdefault(event.room_id, []).append(event)
|
||
|
|
||
|
yield logcontext.make_deferred_yieldable(defer.gatherResults(
|
||
|
[
|
||
|
logcontext.run_in_background(handle_room_events, evs)
|
||
|
for evs in itervalues(events_by_room)
|
||
|
],
|
||
|
consumeErrors=True
|
||
|
))
|
||
|
|
||
|
yield self.store.update_federation_out_pos(
|
||
|
"events", next_token
|
||
|
)
|
||
|
|
||
|
if events:
|
||
|
now = self.clock.time_msec()
|
||
|
ts = yield self.store.get_received_ts(events[-1].event_id)
|
||
|
|
||
|
synapse.metrics.event_processing_lag.labels(
|
||
|
"federation_sender").set(now - ts)
|
||
|
synapse.metrics.event_processing_last_ts.labels(
|
||
|
"federation_sender").set(ts)
|
||
|
|
||
|
events_processed_counter.inc(len(events))
|
||
|
|
||
|
event_processing_loop_room_count.labels(
|
||
|
"federation_sender"
|
||
|
).inc(len(events_by_room))
|
||
|
|
||
|
event_processing_loop_counter.labels("federation_sender").inc()
|
||
|
|
||
|
synapse.metrics.event_processing_positions.labels(
|
||
|
"federation_sender").set(next_token)
|
||
|
|
||
|
finally:
|
||
|
self._is_processing = False
|
||
|
|
||
|
def _send_pdu(self, pdu, destinations):
|
||
|
# We loop through all destinations to see whether we already have
|
||
|
# a transaction in progress. If we do, stick it in the pending_pdus
|
||
|
# table and we'll get back to it later.
|
||
|
|
||
|
order = self._order
|
||
|
self._order += 1
|
||
|
|
||
|
destinations = set(destinations)
|
||
|
destinations.discard(self.server_name)
|
||
|
logger.debug("Sending to: %s", str(destinations))
|
||
|
|
||
|
if not destinations:
|
||
|
return
|
||
|
|
||
|
sent_pdus_destination_dist_total.inc(len(destinations))
|
||
|
sent_pdus_destination_dist_count.inc()
|
||
|
|
||
|
for destination in destinations:
|
||
|
self._get_per_destination_queue(destination).send_pdu(pdu, order)
|
||
|
|
||
|
@defer.inlineCallbacks
|
||
|
def send_read_receipt(self, receipt):
|
||
|
"""Send a RR to any other servers in the room
|
||
|
|
||
|
Args:
|
||
|
receipt (synapse.types.ReadReceipt): receipt to be sent
|
||
|
"""
|
||
|
# Work out which remote servers should be poked and poke them.
|
||
|
domains = yield self.state.get_current_hosts_in_room(receipt.room_id)
|
||
|
domains = [d for d in domains if d != self.server_name]
|
||
|
if not domains:
|
||
|
return
|
||
|
|
||
|
logger.debug("Sending receipt to: %r", domains)
|
||
|
|
||
|
content = {
|
||
|
receipt.room_id: {
|
||
|
receipt.receipt_type: {
|
||
|
receipt.user_id: {
|
||
|
"event_ids": receipt.event_ids,
|
||
|
"data": receipt.data,
|
||
|
},
|
||
|
},
|
||
|
},
|
||
|
}
|
||
|
key = (receipt.room_id, receipt.receipt_type, receipt.user_id)
|
||
|
|
||
|
for domain in domains:
|
||
|
self.build_and_send_edu(
|
||
|
destination=domain,
|
||
|
edu_type="m.receipt",
|
||
|
content=content,
|
||
|
key=key,
|
||
|
)
|
||
|
|
||
|
@logcontext.preserve_fn # the caller should not yield on this
|
||
|
@defer.inlineCallbacks
|
||
|
def send_presence(self, states):
|
||
|
"""Send the new presence states to the appropriate destinations.
|
||
|
|
||
|
This actually queues up the presence states ready for sending and
|
||
|
triggers a background task to process them and send out the transactions.
|
||
|
|
||
|
Args:
|
||
|
states (list(UserPresenceState))
|
||
|
"""
|
||
|
if not self.hs.config.use_presence:
|
||
|
# No-op if presence is disabled.
|
||
|
return
|
||
|
|
||
|
# First we queue up the new presence by user ID, so multiple presence
|
||
|
# updates in quick successtion are correctly handled
|
||
|
# We only want to send presence for our own users, so lets always just
|
||
|
# filter here just in case.
|
||
|
self.pending_presence.update({
|
||
|
state.user_id: state for state in states
|
||
|
if self.is_mine_id(state.user_id)
|
||
|
})
|
||
|
|
||
|
# We then handle the new pending presence in batches, first figuring
|
||
|
# out the destinations we need to send each state to and then poking it
|
||
|
# to attempt a new transaction. We linearize this so that we don't
|
||
|
# accidentally mess up the ordering and send multiple presence updates
|
||
|
# in the wrong order
|
||
|
if self._processing_pending_presence:
|
||
|
return
|
||
|
|
||
|
self._processing_pending_presence = True
|
||
|
try:
|
||
|
while True:
|
||
|
states_map = self.pending_presence
|
||
|
self.pending_presence = {}
|
||
|
|
||
|
if not states_map:
|
||
|
break
|
||
|
|
||
|
yield self._process_presence_inner(list(states_map.values()))
|
||
|
except Exception:
|
||
|
logger.exception("Error sending presence states to servers")
|
||
|
finally:
|
||
|
self._processing_pending_presence = False
|
||
|
|
||
|
@measure_func("txnqueue._process_presence")
|
||
|
@defer.inlineCallbacks
|
||
|
def _process_presence_inner(self, states):
|
||
|
"""Given a list of states populate self.pending_presence_by_dest and
|
||
|
poke to send a new transaction to each destination
|
||
|
|
||
|
Args:
|
||
|
states (list(UserPresenceState))
|
||
|
"""
|
||
|
hosts_and_states = yield get_interested_remotes(self.store, states, self.state)
|
||
|
|
||
|
for destinations, states in hosts_and_states:
|
||
|
for destination in destinations:
|
||
|
if destination == self.server_name:
|
||
|
continue
|
||
|
self._get_per_destination_queue(destination).send_presence(states)
|
||
|
|
||
|
def build_and_send_edu(self, destination, edu_type, content, key=None):
|
||
|
"""Construct an Edu object, and queue it for sending
|
||
|
|
||
|
Args:
|
||
|
destination (str): name of server to send to
|
||
|
edu_type (str): type of EDU to send
|
||
|
content (dict): content of EDU
|
||
|
key (Any|None): clobbering key for this edu
|
||
|
"""
|
||
|
if destination == self.server_name:
|
||
|
logger.info("Not sending EDU to ourselves")
|
||
|
return
|
||
|
|
||
|
edu = Edu(
|
||
|
origin=self.server_name,
|
||
|
destination=destination,
|
||
|
edu_type=edu_type,
|
||
|
content=content,
|
||
|
)
|
||
|
|
||
|
self.send_edu(edu, key)
|
||
|
|
||
|
def send_edu(self, edu, key):
|
||
|
"""Queue an EDU for sending
|
||
|
|
||
|
Args:
|
||
|
edu (Edu): edu to send
|
||
|
key (Any|None): clobbering key for this edu
|
||
|
"""
|
||
|
queue = self._get_per_destination_queue(edu.destination)
|
||
|
if key:
|
||
|
queue.send_keyed_edu(edu, key)
|
||
|
else:
|
||
|
queue.send_edu(edu)
|
||
|
|
||
|
def send_device_messages(self, destination):
|
||
|
if destination == self.server_name:
|
||
|
logger.info("Not sending device update to ourselves")
|
||
|
return
|
||
|
|
||
|
self._get_per_destination_queue(destination).attempt_new_transaction()
|
||
|
|
||
|
def get_current_token(self):
|
||
|
return 0
|