mirror of
https://mau.dev/maunium/synapse.git
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1c802de626
Allow configuring the set of workers to proxy outbound federation traffic through (`outbound_federation_restricted_to`). This is useful when you have a worker setup with `federation_sender` instances responsible for sending outbound federation requests and want to make sure *all* outbound federation traffic goes through those instances. Before this change, the generic workers would still contact federation themselves for things like profile lookups, backfill, etc. This PR allows you to set more strict access controls/firewall for all workers and only allow the `federation_sender`'s to contact the outside world.
400 lines
14 KiB
Python
400 lines
14 KiB
Python
# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2019 New Vector 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 logging
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import os
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import sys
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from typing import Dict, Iterable, List
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from twisted.internet.tcp import Port
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from twisted.web.resource import EncodingResourceWrapper, Resource
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from twisted.web.server import GzipEncoderFactory
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import synapse
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import synapse.config.logger
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from synapse import events
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from synapse.api.urls import (
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CLIENT_API_PREFIX,
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FEDERATION_PREFIX,
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LEGACY_MEDIA_PREFIX,
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MEDIA_R0_PREFIX,
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MEDIA_V3_PREFIX,
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SERVER_KEY_PREFIX,
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STATIC_PREFIX,
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)
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from synapse.app import _base
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from synapse.app._base import (
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handle_startup_exception,
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listen_http,
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max_request_body_size,
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redirect_stdio_to_logs,
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register_start,
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)
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from synapse.config._base import ConfigError, format_config_error
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from synapse.config.homeserver import HomeServerConfig
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from synapse.config.server import ListenerConfig, TCPListenerConfig
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from synapse.federation.transport.server import TransportLayerServer
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from synapse.http.additional_resource import AdditionalResource
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from synapse.http.server import (
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OptionsResource,
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RootOptionsRedirectResource,
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StaticResource,
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)
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from synapse.logging.context import LoggingContext
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from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy
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from synapse.replication.http import REPLICATION_PREFIX, ReplicationRestResource
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from synapse.rest import ClientRestResource
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from synapse.rest.admin import AdminRestResource
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from synapse.rest.health import HealthResource
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from synapse.rest.key.v2 import KeyResource
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from synapse.rest.synapse.client import build_synapse_client_resource_tree
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from synapse.rest.well_known import well_known_resource
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from synapse.server import HomeServer
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from synapse.storage import DataStore
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from synapse.util.check_dependencies import VERSION, check_requirements
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from synapse.util.httpresourcetree import create_resource_tree
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from synapse.util.module_loader import load_module
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logger = logging.getLogger("synapse.app.homeserver")
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def gz_wrap(r: Resource) -> Resource:
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return EncodingResourceWrapper(r, [GzipEncoderFactory()])
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class SynapseHomeServer(HomeServer):
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DATASTORE_CLASS = DataStore # type: ignore
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def _listener_http(
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self,
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config: HomeServerConfig,
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listener_config: ListenerConfig,
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) -> Iterable[Port]:
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# Must exist since this is an HTTP listener.
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assert listener_config.http_options is not None
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site_tag = listener_config.get_site_tag()
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# We always include a health resource.
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resources: Dict[str, Resource] = {"/health": HealthResource()}
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for res in listener_config.http_options.resources:
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for name in res.names:
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if name == "openid" and "federation" in res.names:
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# Skip loading openid resource if federation is defined
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# since federation resource will include openid
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continue
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if name == "health":
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# Skip loading, health resource is always included
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continue
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resources.update(self._configure_named_resource(name, res.compress))
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additional_resources = listener_config.http_options.additional_resources
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logger.debug("Configuring additional resources: %r", additional_resources)
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module_api = self.get_module_api()
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for path, resmodule in additional_resources.items():
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handler_cls, config = load_module(
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resmodule,
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("listeners", site_tag, "additional_resources", "<%s>" % (path,)),
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)
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handler = handler_cls(config, module_api)
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if isinstance(handler, Resource):
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resource = handler
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elif hasattr(handler, "handle_request"):
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resource = AdditionalResource(self, handler.handle_request)
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else:
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raise ConfigError(
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"additional_resource %s does not implement a known interface"
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% (resmodule["module"],)
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)
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resources[path] = resource
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# Attach additional resources registered by modules.
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resources.update(self._module_web_resources)
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self._module_web_resources_consumed = True
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# Try to find something useful to serve at '/':
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#
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# 1. Redirect to the web client if it is an HTTP(S) URL.
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# 2. Redirect to the static "Synapse is running" page.
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# 3. Do not redirect and use a blank resource.
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if self.config.server.web_client_location:
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root_resource: Resource = RootOptionsRedirectResource(
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self.config.server.web_client_location
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)
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elif STATIC_PREFIX in resources:
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root_resource = RootOptionsRedirectResource(STATIC_PREFIX)
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else:
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root_resource = OptionsResource()
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ports = listen_http(
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self,
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listener_config,
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create_resource_tree(resources, root_resource),
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self.version_string,
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max_request_body_size(self.config),
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self.tls_server_context_factory,
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reactor=self.get_reactor(),
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)
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return ports
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def _configure_named_resource(
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self, name: str, compress: bool = False
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) -> Dict[str, Resource]:
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"""Build a resource map for a named resource
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Args:
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name: named resource: one of "client", "federation", etc
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compress: whether to enable gzip compression for this resource
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Returns:
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map from path to HTTP resource
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"""
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resources: Dict[str, Resource] = {}
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if name == "client":
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client_resource: Resource = ClientRestResource(self)
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if compress:
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client_resource = gz_wrap(client_resource)
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resources.update(
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{
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CLIENT_API_PREFIX: client_resource,
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"/.well-known": well_known_resource(self),
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"/_synapse/admin": AdminRestResource(self),
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**build_synapse_client_resource_tree(self),
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}
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)
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if self.config.email.can_verify_email:
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from synapse.rest.synapse.client.password_reset import (
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PasswordResetSubmitTokenResource,
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)
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resources[
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"/_synapse/client/password_reset/email/submit_token"
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] = PasswordResetSubmitTokenResource(self)
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if name == "consent":
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from synapse.rest.consent.consent_resource import ConsentResource
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consent_resource: Resource = ConsentResource(self)
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if compress:
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consent_resource = gz_wrap(consent_resource)
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resources["/_matrix/consent"] = consent_resource
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if name == "federation":
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federation_resource: Resource = TransportLayerServer(self)
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if compress:
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federation_resource = gz_wrap(federation_resource)
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resources[FEDERATION_PREFIX] = federation_resource
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if name == "openid":
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resources[FEDERATION_PREFIX] = TransportLayerServer(
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self, servlet_groups=["openid"]
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)
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if name in ["static", "client"]:
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resources[STATIC_PREFIX] = StaticResource(
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os.path.join(os.path.dirname(synapse.__file__), "static")
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)
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if name in ["media", "federation", "client"]:
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if self.config.server.enable_media_repo:
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media_repo = self.get_media_repository_resource()
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resources.update(
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{
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MEDIA_R0_PREFIX: media_repo,
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MEDIA_V3_PREFIX: media_repo,
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LEGACY_MEDIA_PREFIX: media_repo,
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}
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)
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elif name == "media":
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raise ConfigError(
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"'media' resource conflicts with enable_media_repo=False"
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)
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if name in ["keys", "federation"]:
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resources[SERVER_KEY_PREFIX] = KeyResource(self)
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if name == "metrics" and self.config.metrics.enable_metrics:
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metrics_resource: Resource = MetricsResource(RegistryProxy)
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if compress:
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metrics_resource = gz_wrap(metrics_resource)
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resources[METRICS_PREFIX] = metrics_resource
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if name == "replication":
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resources[REPLICATION_PREFIX] = ReplicationRestResource(self)
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return resources
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def start_listening(self) -> None:
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if self.config.redis.redis_enabled:
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# If redis is enabled we connect via the replication command handler
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# in the same way as the workers (since we're effectively a client
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# rather than a server).
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self.get_replication_command_handler().start_replication(self)
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for listener in self.config.server.listeners:
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if listener.type == "http":
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self._listening_services.extend(
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self._listener_http(self.config, listener)
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)
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elif listener.type == "manhole":
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if isinstance(listener, TCPListenerConfig):
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_base.listen_manhole(
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listener.bind_addresses,
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listener.port,
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manhole_settings=self.config.server.manhole_settings,
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manhole_globals={"hs": self},
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)
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else:
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raise ConfigError(
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"Can not use a unix socket for manhole at this time."
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)
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elif listener.type == "metrics":
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if not self.config.metrics.enable_metrics:
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logger.warning(
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"Metrics listener configured, but "
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"enable_metrics is not True!"
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)
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else:
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if isinstance(listener, TCPListenerConfig):
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_base.listen_metrics(
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listener.bind_addresses,
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listener.port,
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)
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else:
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raise ConfigError(
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"Can not use a unix socket for metrics at this time."
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)
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else:
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# this shouldn't happen, as the listener type should have been checked
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# during parsing
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logger.warning("Unrecognized listener type: %s", listener.type)
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def setup(config_options: List[str]) -> SynapseHomeServer:
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"""
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Args:
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config_options_options: The options passed to Synapse. Usually `sys.argv[1:]`.
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Returns:
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A homeserver instance.
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"""
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try:
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config = HomeServerConfig.load_or_generate_config(
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"Synapse Homeserver", config_options
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)
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except ConfigError as e:
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sys.stderr.write("\n")
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for f in format_config_error(e):
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sys.stderr.write(f)
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sys.stderr.write("\n")
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sys.exit(1)
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if not config:
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# If a config isn't returned, and an exception isn't raised, we're just
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# generating config files and shouldn't try to continue.
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sys.exit(0)
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if config.worker.worker_app:
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raise ConfigError(
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"You have specified `worker_app` in the config but are attempting to start a non-worker "
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"instance. Please use `python -m synapse.app.generic_worker` instead (or remove the option if this is the main process)."
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)
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sys.exit(1)
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events.USE_FROZEN_DICTS = config.server.use_frozen_dicts
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synapse.util.caches.TRACK_MEMORY_USAGE = config.caches.track_memory_usage
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if config.server.gc_seconds:
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synapse.metrics.MIN_TIME_BETWEEN_GCS = config.server.gc_seconds
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if (
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config.registration.enable_registration
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and not config.registration.enable_registration_without_verification
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):
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if (
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not config.captcha.enable_registration_captcha
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and not config.registration.registrations_require_3pid
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and not config.registration.registration_requires_token
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):
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raise ConfigError(
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"You have enabled open registration without any verification. This is a known vector for "
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"spam and abuse. If you would like to allow public registration, please consider adding email, "
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"captcha, or token-based verification. Otherwise this check can be removed by setting the "
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"`enable_registration_without_verification` config option to `true`."
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)
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hs = SynapseHomeServer(
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config.server.server_name,
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config=config,
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version_string=f"Synapse/{VERSION}",
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)
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synapse.config.logger.setup_logging(hs, config, use_worker_options=False)
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logger.info("Setting up server")
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try:
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hs.setup()
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except Exception as e:
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handle_startup_exception(e)
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async def start() -> None:
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# Load the OIDC provider metadatas, if OIDC is enabled.
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if hs.config.oidc.oidc_enabled:
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oidc = hs.get_oidc_handler()
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# Loading the provider metadata also ensures the provider config is valid.
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await oidc.load_metadata()
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await _base.start(hs)
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hs.get_datastores().main.db_pool.updates.start_doing_background_updates()
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register_start(start)
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return hs
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def run(hs: HomeServer) -> None:
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_base.start_reactor(
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"synapse-homeserver",
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soft_file_limit=hs.config.server.soft_file_limit,
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gc_thresholds=hs.config.server.gc_thresholds,
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pid_file=hs.config.server.pid_file,
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daemonize=hs.config.server.daemonize,
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print_pidfile=hs.config.server.print_pidfile,
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logger=logger,
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)
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def main() -> None:
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with LoggingContext("main"):
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# check base requirements
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check_requirements()
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hs = setup(sys.argv[1:])
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# redirect stdio to the logs, if configured.
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if not hs.config.logging.no_redirect_stdio:
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redirect_stdio_to_logs()
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run(hs)
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if __name__ == "__main__":
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main()
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