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![Erik Johnston](/assets/img/avatar_default.png)
The aim here is to move the command handling out of the TCP protocol classes and to also merge the client and server command handling (so that we can reuse them for redis protocol). This PR simply moves the client paths to the new `ReplicationCommandHandler`, a future PR will move the server paths too.
249 lines
8.2 KiB
Python
249 lines
8.2 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright 2019 Matrix.org Foundation C.I.C.
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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 argparse
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import logging
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import os
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import sys
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import tempfile
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from canonicaljson import json
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from twisted.internet import defer, task
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import synapse
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from synapse.app import _base
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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.handlers.admin import ExfiltrationWriter
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from synapse.replication.slave.storage._base import BaseSlavedStore
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from synapse.replication.slave.storage.account_data import SlavedAccountDataStore
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from synapse.replication.slave.storage.appservice import SlavedApplicationServiceStore
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from synapse.replication.slave.storage.client_ips import SlavedClientIpStore
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from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore
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from synapse.replication.slave.storage.devices import SlavedDeviceStore
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from synapse.replication.slave.storage.events import SlavedEventStore
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from synapse.replication.slave.storage.filtering import SlavedFilteringStore
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from synapse.replication.slave.storage.groups import SlavedGroupServerStore
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from synapse.replication.slave.storage.presence import SlavedPresenceStore
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from synapse.replication.slave.storage.push_rule import SlavedPushRuleStore
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from synapse.replication.slave.storage.receipts import SlavedReceiptsStore
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from synapse.replication.slave.storage.registration import SlavedRegistrationStore
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from synapse.replication.slave.storage.room import RoomStore
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from synapse.server import HomeServer
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from synapse.util.logcontext import LoggingContext
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from synapse.util.versionstring import get_version_string
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logger = logging.getLogger("synapse.app.admin_cmd")
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class AdminCmdSlavedStore(
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SlavedReceiptsStore,
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SlavedAccountDataStore,
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SlavedApplicationServiceStore,
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SlavedRegistrationStore,
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SlavedFilteringStore,
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SlavedPresenceStore,
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SlavedGroupServerStore,
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SlavedDeviceInboxStore,
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SlavedDeviceStore,
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SlavedPushRuleStore,
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SlavedEventStore,
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SlavedClientIpStore,
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RoomStore,
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BaseSlavedStore,
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):
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pass
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class AdminCmdServer(HomeServer):
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DATASTORE_CLASS = AdminCmdSlavedStore
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def _listen_http(self, listener_config):
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pass
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def start_listening(self, listeners):
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pass
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@defer.inlineCallbacks
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def export_data_command(hs, args):
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"""Export data for a user.
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Args:
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hs (HomeServer)
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args (argparse.Namespace)
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"""
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user_id = args.user_id
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directory = args.output_directory
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res = yield defer.ensureDeferred(
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hs.get_handlers().admin_handler.export_user_data(
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user_id, FileExfiltrationWriter(user_id, directory=directory)
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)
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)
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print(res)
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class FileExfiltrationWriter(ExfiltrationWriter):
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"""An ExfiltrationWriter that writes the users data to a directory.
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Returns the directory location on completion.
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Note: This writes to disk on the main reactor thread.
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Args:
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user_id (str): The user whose data is being exfiltrated.
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directory (str|None): The directory to write the data to, if None then
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will write to a temporary directory.
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"""
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def __init__(self, user_id, directory=None):
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self.user_id = user_id
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if directory:
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self.base_directory = directory
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else:
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self.base_directory = tempfile.mkdtemp(
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prefix="synapse-exfiltrate__%s__" % (user_id,)
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)
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os.makedirs(self.base_directory, exist_ok=True)
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if list(os.listdir(self.base_directory)):
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raise Exception("Directory must be empty")
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def write_events(self, room_id, events):
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room_directory = os.path.join(self.base_directory, "rooms", room_id)
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os.makedirs(room_directory, exist_ok=True)
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events_file = os.path.join(room_directory, "events")
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with open(events_file, "a") as f:
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for event in events:
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print(json.dumps(event.get_pdu_json()), file=f)
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def write_state(self, room_id, event_id, state):
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room_directory = os.path.join(self.base_directory, "rooms", room_id)
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state_directory = os.path.join(room_directory, "state")
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os.makedirs(state_directory, exist_ok=True)
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event_file = os.path.join(state_directory, event_id)
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with open(event_file, "a") as f:
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for event in state.values():
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print(json.dumps(event.get_pdu_json()), file=f)
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def write_invite(self, room_id, event, state):
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self.write_events(room_id, [event])
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# We write the invite state somewhere else as they aren't full events
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# and are only a subset of the state at the event.
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room_directory = os.path.join(self.base_directory, "rooms", room_id)
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os.makedirs(room_directory, exist_ok=True)
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invite_state = os.path.join(room_directory, "invite_state")
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with open(invite_state, "a") as f:
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for event in state.values():
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print(json.dumps(event), file=f)
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def finished(self):
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return self.base_directory
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def start(config_options):
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parser = argparse.ArgumentParser(description="Synapse Admin Command")
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HomeServerConfig.add_arguments_to_parser(parser)
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subparser = parser.add_subparsers(
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title="Admin Commands",
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required=True,
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dest="command",
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metavar="<admin_command>",
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help="The admin command to perform.",
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)
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export_data_parser = subparser.add_parser(
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"export-data", help="Export all data for a user"
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)
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export_data_parser.add_argument("user_id", help="User to extra data from")
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export_data_parser.add_argument(
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"--output-directory",
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action="store",
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metavar="DIRECTORY",
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required=False,
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help="The directory to store the exported data in. Must be empty. Defaults"
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" to creating a temp directory.",
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)
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export_data_parser.set_defaults(func=export_data_command)
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try:
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config, args = HomeServerConfig.load_config_with_parser(parser, config_options)
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except ConfigError as e:
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sys.stderr.write("\n" + str(e) + "\n")
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sys.exit(1)
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if config.worker_app is not None:
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assert config.worker_app == "synapse.app.admin_cmd"
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# Update the config with some basic overrides so that don't have to specify
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# a full worker config.
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config.worker_app = "synapse.app.admin_cmd"
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if (
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not config.worker_daemonize
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and not config.worker_log_file
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and not config.worker_log_config
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):
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# Since we're meant to be run as a "command" let's not redirect stdio
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# unless we've actually set log config.
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config.no_redirect_stdio = True
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# Explicitly disable background processes
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config.update_user_directory = False
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config.start_pushers = False
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config.send_federation = False
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synapse.events.USE_FROZEN_DICTS = config.use_frozen_dicts
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ss = AdminCmdServer(
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config.server_name,
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config=config,
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version_string="Synapse/" + get_version_string(synapse),
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)
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setup_logging(ss, config, use_worker_options=True)
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ss.setup()
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# We use task.react as the basic run command as it correctly handles tearing
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# down the reactor when the deferreds resolve and setting the return value.
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# We also make sure that `_base.start` gets run before we actually run the
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# command.
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@defer.inlineCallbacks
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def run(_reactor):
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with LoggingContext("command"):
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yield _base.start(ss, [])
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yield args.func(ss, args)
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_base.start_worker_reactor(
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"synapse-admin-cmd", config, run_command=lambda: task.react(run)
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)
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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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