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Diffstat (limited to '')
| -rw-r--r-- | synapse/app/pusher.py | 396 |
1 files changed, 396 insertions, 0 deletions
diff --git a/synapse/app/pusher.py b/synapse/app/pusher.py new file mode 100644 index 0000000000..4ec23d84c1 --- /dev/null +++ b/synapse/app/pusher.py @@ -0,0 +1,396 @@ +#!/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.server import HomeServer +from synapse.config._base import ConfigError +from synapse.config.database import DatabaseConfig +from synapse.config.logger import LoggingConfig +from synapse.config.emailconfig import EmailConfig +from synapse.config.key import KeyConfig +from synapse.http.site import SynapseSite +from synapse.metrics.resource import MetricsResource, METRICS_PREFIX +from synapse.storage.roommember import RoomMemberStore +from synapse.replication.slave.storage.events import SlavedEventStore +from synapse.replication.slave.storage.pushers import SlavedPusherStore +from synapse.replication.slave.storage.receipts import SlavedReceiptsStore +from synapse.replication.slave.storage.account_data import SlavedAccountDataStore +from synapse.storage.engines import create_engine +from synapse.storage import DataStore +from synapse.util.async import sleep +from synapse.util.httpresourcetree import create_resource_tree +from synapse.util.logcontext import LoggingContext, preserve_fn +from synapse.util.manhole import manhole +from synapse.util.rlimit import change_resource_limit +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 gc +import sys +import logging + +logger = logging.getLogger("synapse.app.pusher") + + +class SlaveConfig(DatabaseConfig): + 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.start_pushers = True + 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.public_baseurl = config["public_baseurl"] + + thresholds = config.get("gc_thresholds", None) + if thresholds is not None: + try: + assert len(thresholds) == 3 + self.gc_thresholds = ( + int(thresholds[0]), int(thresholds[1]), int(thresholds[2]), + ) + except: + raise ConfigError( + "Value of `gc_threshold` must be a list of three integers if set" + ) + else: + self.gc_thresholds = None + + # some things used by the auth handler but not actually used in the + # pusher codebase + self.bcrypt_rounds = None + self.ldap_enabled = None + self.ldap_server = None + self.ldap_port = None + self.ldap_tls = None + self.ldap_search_base = None + self.ldap_search_property = None + self.ldap_email_property = None + self.ldap_full_name_property = None + + # We would otherwise try to use the registration shared secret as the + # macaroon shared secret if there was no macaroon_shared_secret, but + # that means pulling in RegistrationConfig too. We don't need to be + # backwards compaitible in the pusher codebase so just make people set + # macaroon_shared_secret. We set this to None to prevent it referencing + # an undefined key. + self.registration_shared_secret = None + + def default_config(self, server_name, **kwargs): + pid_file = self.abspath("pusher.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 ssh manhole listener on the pusher. + # - type: manhole + # port: {manhole_port} + # bind_address: 127.0.0.1 + # Enable a metric listener on the pusher. + # - 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 PusherSlaveConfig(SlaveConfig, LoggingConfig, EmailConfig, KeyConfig): + pass + + +class PusherSlaveStore( + SlavedEventStore, SlavedPusherStore, SlavedReceiptsStore, + SlavedAccountDataStore +): + update_pusher_last_stream_ordering_and_success = ( + DataStore.update_pusher_last_stream_ordering_and_success.__func__ + ) + + update_pusher_failing_since = ( + DataStore.update_pusher_failing_since.__func__ + ) + + update_pusher_last_stream_ordering = ( + DataStore.update_pusher_last_stream_ordering.__func__ + ) + + get_throttle_params_by_room = ( + DataStore.get_throttle_params_by_room.__func__ + ) + + set_throttle_params = ( + DataStore.set_throttle_params.__func__ + ) + + get_time_of_last_push_action_before = ( + DataStore.get_time_of_last_push_action_before.__func__ + ) + + get_profile_displayname = ( + DataStore.get_profile_displayname.__func__ + ) + + # 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 PusherServer(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 = PusherSlaveStore(self.get_db_conn(), self) + logger.info("Finished setting up.") + + def remove_pusher(self, app_id, push_key, user_id): + http_client = self.get_simple_http_client() + replication_url = self.config.replication_url + url = replication_url + "/remove_pushers" + return http_client.post_json_get_json(url, { + "remove": [{ + "app_id": app_id, + "push_key": push_key, + "user_id": user_id, + }] + }) + + 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) + + 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 pusher 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 + pusher_pool = self.get_pusherpool() + clock = self.get_clock() + + def stop_pusher(user_id, app_id, pushkey): + key = "%s:%s" % (app_id, pushkey) + pushers_for_user = pusher_pool.pushers.get(user_id, {}) + pusher = pushers_for_user.pop(key, None) + if pusher is None: + return + logger.info("Stopping pusher %r / %r", user_id, key) + pusher.on_stop() + + def start_pusher(user_id, app_id, pushkey): + key = "%s:%s" % (app_id, pushkey) + logger.info("Starting pusher %r / %r", user_id, key) + return pusher_pool._refresh_pusher(app_id, pushkey, user_id) + + @defer.inlineCallbacks + def poke_pushers(results): + pushers_rows = set( + map(tuple, results.get("pushers", {}).get("rows", [])) + ) + deleted_pushers_rows = set( + map(tuple, results.get("deleted_pushers", {}).get("rows", [])) + ) + for row in sorted(pushers_rows | deleted_pushers_rows): + if row in deleted_pushers_rows: + user_id, app_id, pushkey = row[1:4] + stop_pusher(user_id, app_id, pushkey) + elif row in pushers_rows: + user_id = row[1] + app_id = row[5] + pushkey = row[8] + yield start_pusher(user_id, app_id, pushkey) + + stream = results.get("events") + if stream: + min_stream_id = stream["rows"][0][0] + max_stream_id = stream["position"] + preserve_fn(pusher_pool.on_new_notifications)( + min_stream_id, max_stream_id + ) + + stream = results.get("receipts") + if stream: + rows = stream["rows"] + affected_room_ids = set(row[1] for row in rows) + min_stream_id = rows[0][0] + max_stream_id = stream["position"] + preserve_fn(pusher_pool.on_new_receipts)( + min_stream_id, max_stream_id, affected_room_ids + ) + + def expire_broken_caches(): + store.who_forgot_in_room.invalidate_all() + + next_expire_broken_caches_ms = 0 + while True: + try: + args = store.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) + poke_pushers(result) + except: + logger.exception("Error replicating from %r", replication_url) + yield sleep(30) + + +def setup(config_options): + try: + config = PusherSlaveConfig.load_config( + "Synapse pusher", 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) + + ps = PusherServer( + config.server_name, + db_config=config.database_config, + config=config, + version_string=get_version_string("Synapse", synapse), + database_engine=database_engine, + ) + + ps.setup() + ps.start_listening() + + change_resource_limit(ps.config.soft_file_limit) + if ps.config.gc_thresholds: + gc.set_threshold(*ps.config.gc_thresholds) + + def start(): + ps.replicate() + ps.get_pusherpool().start() + ps.get_datastore().start_profiling() + + reactor.callWhenRunning(start) + + return ps + + +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) + if ps.config.gc_thresholds: + gc.set_threshold(*ps.config.gc_thresholds) + 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() |