diff --git a/synapse/app/synchrotron.py b/synapse/app/synchrotron.py
new file mode 100644
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--- /dev/null
+++ b/synapse/app/synchrotron.py
@@ -0,0 +1,467 @@
+#!/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.database import DatabaseConfig
+from synapse.config.logger import LoggingConfig
+from synapse.config.appservice import AppServiceConfig
+from synapse.events import FrozenEvent
+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.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.server import HomeServer
+from synapse.storage.engines import create_engine
+from synapse.storage.presence import UserPresenceState
+from synapse.storage.roommember import RoomMemberStore
+from synapse.util.async import sleep
+from synapse.util.httpresourcetree import create_resource_tree
+from synapse.util.logcontext import LoggingContext
+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 ujson as json
+
+logger = logging.getLogger("synapse.app.synchrotron")
+
+
+class SynchrotronConfig(DatabaseConfig, LoggingConfig, AppServiceConfig):
+ def read_config(self, config):
+ self.replication_url = config["replication_url"]
+ self.server_name = config["server_name"]
+ self.use_insecure_ssl_client_just_for_testing_do_not_use = config.get(
+ "use_insecure_ssl_client_just_for_testing_do_not_use", False
+ )
+ self.user_agent_suffix = None
+ self.listeners = config["listeners"]
+ self.soft_file_limit = config.get("soft_file_limit")
+ self.daemonize = config.get("daemonize")
+ self.pid_file = self.abspath(config.get("pid_file"))
+ self.macaroon_secret_key = config["macaroon_secret_key"]
+ self.expire_access_token = config.get("expire_access_token", False)
+
+ def default_config(self, server_name, **kwargs):
+ pid_file = self.abspath("synchroton.pid")
+ return """\
+ # Slave configuration
+
+ # The replication listener on the synapse to talk to.
+ #replication_url: https://localhost:{replication_port}/_synapse/replication
+
+ server_name: "%(server_name)s"
+
+ listeners:
+ # Enable a /sync listener on the synchrontron
+ #- type: http
+ # port: {http_port}
+ # bind_address: ""
+ # Enable a ssh manhole listener on the synchrotron
+ # - type: manhole
+ # port: {manhole_port}
+ # bind_address: 127.0.0.1
+ # Enable a metric listener on the synchrotron
+ # - type: http
+ # port: {metrics_port}
+ # bind_address: 127.0.0.1
+ # resources:
+ # - names: ["metrics"]
+ # compress: False
+
+ report_stats: False
+
+ daemonize: False
+
+ pid_file: %(pid_file)s
+ """ % locals()
+
+
+class SynchrotronSlavedStore(
+ SlavedPushRuleStore,
+ SlavedEventStore,
+ SlavedReceiptsStore,
+ SlavedAccountDataStore,
+ SlavedApplicationServiceStore,
+ SlavedRegistrationStore,
+ SlavedFilteringStore,
+ SlavedPresenceStore,
+):
+ def get_presence_list_accepted(self, user_localpart):
+ return ()
+
+ def insert_client_ip(self, user, access_token, ip, user_agent):
+ pass
+
+ # XXX: This is a bit broken because we don't persist forgotten rooms
+ # in a way that they can be streamed. This means that we don't have a
+ # way to invalidate the forgotten rooms cache correctly.
+ # For now we expire the cache every 10 minutes.
+ BROKEN_CACHE_EXPIRY_MS = 60 * 60 * 1000
+ who_forgot_in_room = (
+ RoomMemberStore.__dict__["who_forgot_in_room"]
+ )
+
+
+class SynchrotronPresence(object):
+ def __init__(self, hs):
+ self.http_client = hs.get_simple_http_client()
+ self.store = hs.get_datastore()
+ self.user_to_num_current_syncs = {}
+ self.syncing_users_url = hs.config.replication_url + "/syncing_users"
+ self.clock = hs.get_clock()
+
+ active_presence = self.store.take_presence_startup_info()
+ self.user_to_current_state = {
+ state.user_id: state
+ for state in active_presence
+ }
+
+ self.process_id = random_string(16)
+ logger.info("Presence process_id is %r", self.process_id)
+
+ def set_state(self, user, state):
+ # TODO Hows this supposed to work?
+ pass
+
+ get_states = PresenceHandler.get_states.__func__
+ current_state_for_users = PresenceHandler.current_state_for_users.__func__
+
+ @defer.inlineCallbacks
+ 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
+ # TODO: Send this less frequently.
+ # TODO: Make sure this doesn't race. Currently we can lose updates
+ # if two users come online in quick sucession and the second http
+ # to the master completes before the first.
+ # TODO: Don't block the sync request on this HTTP hit.
+ yield self._send_syncing_users()
+
+ def _end():
+ if affect_presence:
+ self.user_to_num_current_syncs[user_id] -= 1
+
+ @contextlib.contextmanager
+ def _user_syncing():
+ try:
+ yield
+ finally:
+ _end()
+
+ defer.returnValue(_user_syncing())
+
+ def _send_syncing_users(self):
+ return self.http_client.post_json_get_json(self.syncing_users_url, {
+ "process_id": self.process_id,
+ "syncing_users": [
+ user_id for user_id, count in self.user_to_num_current_syncs.items()
+ if count > 0
+ ],
+ })
+
+ def process_replication(self, result):
+ stream = result.get("presence", {"rows": []})
+ for row in stream["rows"]:
+ (
+ position, user_id, state, last_active_ts,
+ last_federation_update_ts, last_user_sync_ts, status_msg,
+ currently_active
+ ) = row
+ self.user_to_current_state[user_id] = UserPresenceState(
+ user_id, state, last_active_ts,
+ last_federation_update_ts, last_user_sync_ts, status_msg,
+ currently_active
+ )
+
+
+class SynchrotronTyping(object):
+ def __init__(self, hs):
+ self._latest_room_serial = 0
+ self._room_serials = {}
+ self._room_typing = {}
+
+ def stream_positions(self):
+ return {"typing": self._latest_room_serial}
+
+ def process_replication(self, result):
+ stream = result.get("typing")
+ if stream:
+ self._latest_room_serial = int(stream["position"])
+
+ for row in stream["rows"]:
+ position, room_id, typing_json = row
+ typing = json.loads(typing_json)
+ self._room_serials[room_id] = position
+ self._room_typing[room_id] = typing
+
+
+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_address = listener_config.get("bind_address", "")
+ 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)
+ resources.update({
+ "/_matrix/client/r0": resource,
+ "/_matrix/client/unstable": resource,
+ "/_matrix/client/v2_alpha": resource,
+ })
+
+ root_resource = create_resource_tree(resources, Resource())
+ reactor.listenTCP(
+ port,
+ SynapseSite(
+ "synapse.access.http.%s" % (site_tag,),
+ site_tag,
+ listener_config,
+ root_resource,
+ ),
+ interface=bind_address
+ )
+ logger.info("Synapse synchrotron now listening on port %d", port)
+
+ def start_listening(self):
+ for listener in self.config.listeners:
+ if listener["type"] == "http":
+ self._listen_http(listener)
+ elif listener["type"] == "manhole":
+ reactor.listenTCP(
+ listener["port"],
+ manhole(
+ username="matrix",
+ password="rabbithole",
+ globals={"hs": self},
+ ),
+ interface=listener.get("bind_address", '127.0.0.1')
+ )
+ else:
+ logger.warn("Unrecognized listener type: %s", listener["type"])
+
+ @defer.inlineCallbacks
+ def replicate(self):
+ http_client = self.get_simple_http_client()
+ store = self.get_datastore()
+ replication_url = self.config.replication_url
+ clock = self.get_clock()
+ notifier = self.get_notifier()
+ presence_handler = self.get_presence_handler()
+ typing_handler = self.get_typing_handler()
+
+ def expire_broken_caches():
+ store.who_forgot_in_room.invalidate_all()
+
+ def notify_from_stream(
+ result, stream_name, stream_key, room=None, user=None
+ ):
+ stream = result.get(stream_name)
+ if stream:
+ position_index = stream["field_names"].index("position")
+ if room:
+ room_index = stream["field_names"].index(room)
+ if user:
+ user_index = stream["field_names"].index(user)
+
+ users = ()
+ rooms = ()
+ for row in stream["rows"]:
+ position = row[position_index]
+
+ if user:
+ users = (row[user_index],)
+
+ if room:
+ rooms = (row[room_index],)
+
+ notifier.on_new_event(
+ stream_key, position, users=users, rooms=rooms
+ )
+
+ def notify(result):
+ stream = result.get("events")
+ if stream:
+ max_position = stream["position"]
+ for row in stream["rows"]:
+ position = row[0]
+ internal = json.loads(row[1])
+ event_json = json.loads(row[2])
+ event = FrozenEvent(event_json, internal_metadata_dict=internal)
+ extra_users = ()
+ if event.type == EventTypes.Member:
+ extra_users = (event.state_key,)
+ notifier.on_new_room_event(
+ event, position, max_position, extra_users
+ )
+
+ notify_from_stream(
+ result, "push_rules", "push_rules_key", user="user_id"
+ )
+ notify_from_stream(
+ result, "user_account_data", "account_data_key", user="user_id"
+ )
+ notify_from_stream(
+ result, "room_account_data", "account_data_key", user="user_id"
+ )
+ notify_from_stream(
+ result, "tag_account_data", "account_data_key", user="user_id"
+ )
+ notify_from_stream(
+ result, "receipts", "receipt_key", room="room_id"
+ )
+ notify_from_stream(
+ result, "typing", "typing_key", room="room_id"
+ )
+
+ next_expire_broken_caches_ms = 0
+ while True:
+ try:
+ args = store.stream_positions()
+ args.update(typing_handler.stream_positions())
+ args["timeout"] = 30000
+ result = yield http_client.get_json(replication_url, args=args)
+ now_ms = clock.time_msec()
+ if now_ms > next_expire_broken_caches_ms:
+ expire_broken_caches()
+ next_expire_broken_caches_ms = (
+ now_ms + store.BROKEN_CACHE_EXPIRY_MS
+ )
+ yield store.process_replication(result)
+ typing_handler.process_replication(result)
+ presence_handler.process_replication(result)
+ notify(result)
+ except:
+ logger.exception("Error replicating from %r", replication_url)
+ sleep(5)
+
+ def build_presence_handler(self):
+ return SynchrotronPresence(self)
+
+ def build_typing_handler(self):
+ return SynchrotronTyping(self)
+
+
+def setup(config_options):
+ try:
+ config = SynchrotronConfig.load_config(
+ "Synapse synchrotron", config_options
+ )
+ except ConfigError as e:
+ sys.stderr.write("\n" + e.message + "\n")
+ sys.exit(1)
+
+ if not config:
+ sys.exit(0)
+
+ config.setup_logging()
+
+ database_engine = create_engine(config.database_config)
+
+ ss = SynchrotronServer(
+ config.server_name,
+ db_config=config.database_config,
+ config=config,
+ version_string=get_version_string("Synapse", synapse),
+ database_engine=database_engine,
+ application_service_handler=SynchrotronApplicationService(),
+ )
+
+ ss.setup()
+ ss.start_listening()
+
+ change_resource_limit(ss.config.soft_file_limit)
+
+ def start():
+ ss.get_datastore().start_profiling()
+ ss.replicate()
+
+ reactor.callWhenRunning(start)
+
+ return ss
+
+
+if __name__ == '__main__':
+ with LoggingContext("main"):
+ ps = setup(sys.argv[1:])
+
+ if ps.config.daemonize:
+ def run():
+ with LoggingContext("run"):
+ change_resource_limit(ps.config.soft_file_limit)
+ reactor.run()
+
+ daemon = Daemonize(
+ app="synapse-pusher",
+ pid=ps.config.pid_file,
+ action=run,
+ auto_close_fds=False,
+ verbose=True,
+ logger=logger,
+ )
+
+ daemon.start()
+ else:
+ reactor.run()
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