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Merge pull request #2344 from matrix-org/erikj/frontend_proxy
Add a frontend proxy
This commit is contained in:
Erik Johnston
GitHub
commit
c9184ed87e
267
synapse/app/frontend_proxy.py
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267
synapse/app/frontend_proxy.py
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#!/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 synapse
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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.http.site import SynapseSite
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from synapse.http.server import JsonResource
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from synapse.metrics.resource import MetricsResource, METRICS_PREFIX
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from synapse.replication.slave.storage._base import BaseSlavedStore
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from synapse.replication.slave.storage.client_ips import SlavedClientIpStore
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from synapse.replication.slave.storage.devices import SlavedDeviceStore
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from synapse.replication.tcp.client import ReplicationClientHandler
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from synapse.server import HomeServer
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from synapse.storage.engines import create_engine
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from synapse.util.httpresourcetree import create_resource_tree
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from synapse.util.logcontext import LoggingContext, PreserveLoggingContext
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from synapse.util.manhole import manhole
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from synapse.util.rlimit import change_resource_limit
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from synapse.util.versionstring import get_version_string
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from synapse.crypto import context_factory
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from synapse.api.errors import SynapseError
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from synapse.http.servlet import (
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RestServlet, parse_json_object_from_request,
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)
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from synapse.rest.client.v2_alpha._base import client_v2_patterns
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from synapse import events
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from twisted.internet import reactor, defer
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from twisted.web.resource import Resource
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from daemonize import Daemonize
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import sys
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import logging
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import gc
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logger = logging.getLogger("synapse.app.frontend_proxy")
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class KeyUploadServlet(RestServlet):
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PATTERNS = client_v2_patterns("/keys/upload(/(?P<device_id>[^/]+))?$",
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releases=())
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def __init__(self, hs):
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"""
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Args:
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hs (synapse.server.HomeServer): server
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"""
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super(KeyUploadServlet, self).__init__()
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self.auth = hs.get_auth()
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self.store = hs.get_datastore()
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self.http_client = hs.get_simple_http_client()
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self.main_uri = hs.config.worker_main_http_uri
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@defer.inlineCallbacks
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def on_POST(self, request, device_id):
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requester = yield self.auth.get_user_by_req(request, allow_guest=True)
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user_id = requester.user.to_string()
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body = parse_json_object_from_request(request)
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if device_id is not None:
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# passing the device_id here is deprecated; however, we allow it
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# for now for compatibility with older clients.
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if (requester.device_id is not None and
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device_id != requester.device_id):
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logger.warning("Client uploading keys for a different device "
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"(logged in as %s, uploading for %s)",
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requester.device_id, device_id)
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else:
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device_id = requester.device_id
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if device_id is None:
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raise SynapseError(
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400,
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"To upload keys, you must pass device_id when authenticating"
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)
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if body:
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# They're actually trying to upload something, proxy to main synapse.
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result = yield self.http_client.post_json_get_json(
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self.main_uri + request.uri,
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body,
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)
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defer.returnValue((200, result))
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else:
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# Just interested in counts.
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result = yield self.store.count_e2e_one_time_keys(user_id, device_id)
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defer.returnValue((200, {"one_time_key_counts": result}))
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class FrontendProxySlavedStore(
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SlavedDeviceStore,
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SlavedClientIpStore,
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BaseSlavedStore,
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):
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pass
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class FrontendProxyServer(HomeServer):
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def get_db_conn(self, run_new_connection=True):
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# Any param beginning with cp_ is a parameter for adbapi, and should
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# not be passed to the database engine.
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db_params = {
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k: v for k, v in self.db_config.get("args", {}).items()
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if not k.startswith("cp_")
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}
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db_conn = self.database_engine.module.connect(**db_params)
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if run_new_connection:
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self.database_engine.on_new_connection(db_conn)
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return db_conn
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def setup(self):
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logger.info("Setting up.")
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self.datastore = FrontendProxySlavedStore(self.get_db_conn(), self)
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logger.info("Finished setting up.")
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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(self)
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elif name == "client":
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resource = JsonResource(self, canonical_json=False)
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KeyUploadServlet(self).register(resource)
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resources.update({
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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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root_resource = create_resource_tree(resources, Resource())
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for address in bind_addresses:
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reactor.listenTCP(
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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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),
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interface=address
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)
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logger.info("Synapse client reader 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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bind_addresses = listener["bind_addresses"]
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for address in bind_addresses:
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reactor.listenTCP(
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listener["port"],
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manhole(
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username="matrix",
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password="rabbithole",
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globals={"hs": self},
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),
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interface=address
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)
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else:
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logger.warn("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 ReplicationClientHandler(self.get_datastore())
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def start(config_options):
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try:
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config = HomeServerConfig.load_config(
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"Synapse frontend proxy", config_options
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)
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except ConfigError as e:
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sys.stderr.write("\n" + e.message + "\n")
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sys.exit(1)
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assert config.worker_app == "synapse.app.frontend_proxy"
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assert config.worker_main_http_uri is not None
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setup_logging(config, use_worker_options=True)
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events.USE_FROZEN_DICTS = config.use_frozen_dicts
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database_engine = create_engine(config.database_config)
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tls_server_context_factory = context_factory.ServerContextFactory(config)
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ss = FrontendProxyServer(
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config.server_name,
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db_config=config.database_config,
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tls_server_context_factory=tls_server_context_factory,
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config=config,
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version_string="Synapse/" + get_version_string(synapse),
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database_engine=database_engine,
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)
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ss.setup()
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ss.get_handlers()
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ss.start_listening(config.worker_listeners)
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def run():
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# make sure that we run the reactor with the sentinel log context,
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# otherwise other PreserveLoggingContext instances will get confused
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# and complain when they see the logcontext arbitrarily swapping
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# between the sentinel and `run` logcontexts.
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with PreserveLoggingContext():
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logger.info("Running")
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change_resource_limit(config.soft_file_limit)
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if config.gc_thresholds:
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gc.set_threshold(*config.gc_thresholds)
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reactor.run()
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def start():
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ss.get_state_handler().start_caching()
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ss.get_datastore().start_profiling()
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reactor.callWhenRunning(start)
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if config.worker_daemonize:
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daemon = Daemonize(
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app="synapse-frontend-proxy",
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pid=config.worker_pid_file,
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action=run,
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auto_close_fds=False,
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verbose=True,
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logger=logger,
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)
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daemon.start()
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else:
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run()
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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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@ -32,6 +32,8 @@ class WorkerConfig(Config):
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self.worker_replication_port = config.get("worker_replication_port", None)
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self.worker_name = config.get("worker_name", self.worker_app)
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self.worker_main_http_uri = config.get("worker_main_http_uri", None)
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if self.worker_listeners:
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for listener in self.worker_listeners:
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bind_address = listener.pop("bind_address", None)
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