mirror of
https://mau.dev/maunium/synapse.git
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313581e4e9
* Pull runtime dep checks into their own module * Reimplement `check_requirements` using `importlib` I've tried to make this clearer. We start by working out which of Synapse's requirements we need to be installed here and now. I was surprised that there wasn't an easier way to see which packages were installed by a given extra. I've pulled out the error messages into functions that deal with "is this for an extra or not". And I've rearranged the loop over two different sets of requirements into one loop with a "must be instaled" flag. I hope you agree that this is clearer. * Test cases
441 lines
16 KiB
Python
441 lines
16 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, Iterator, List
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from matrix_common.versionstring import get_distribution_version_string
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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_V2_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_ssl,
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listen_tcp,
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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
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from synapse.config.emailconfig import ThreepidBehaviour
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from synapse.config.homeserver import HomeServerConfig
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from synapse.config.server import ListenerConfig
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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.http.site import SynapseSite
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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.replication.tcp.resource import ReplicationStreamProtocolFactory
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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 KeyApiV2Resource
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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 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, config: HomeServerConfig, listener_config: ListenerConfig
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) -> Iterable[Port]:
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port = listener_config.port
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bind_addresses = listener_config.bind_addresses
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tls = listener_config.tls
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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.http_options.tag
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if site_tag is None:
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site_tag = str(port)
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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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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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site = SynapseSite(
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"synapse.access.%s.%s" % ("https" if tls else "http", site_tag),
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site_tag,
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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=max_request_body_size(self.config),
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reactor=self.get_reactor(),
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)
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if tls:
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# refresh_certificate should have been called before this.
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assert self.tls_server_context_factory is not None
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ports = listen_ssl(
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bind_addresses,
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port,
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site,
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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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logger.info("Synapse now listening on TCP port %d (TLS)", port)
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else:
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ports = listen_tcp(
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bind_addresses,
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port,
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site,
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reactor=self.get_reactor(),
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)
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logger.info("Synapse now listening on TCP port %d", port)
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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.threepid_behaviour_email == ThreepidBehaviour.LOCAL:
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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.update({"/_matrix/consent": consent_resource})
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if name == "federation":
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resources.update({FEDERATION_PREFIX: TransportLayerServer(self)})
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if name == "openid":
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resources.update(
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{
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FEDERATION_PREFIX: TransportLayerServer(
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self, servlet_groups=["openid"]
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)
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}
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)
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if name in ["static", "client"]:
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resources.update(
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{
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STATIC_PREFIX: StaticResource(
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os.path.join(os.path.dirname(synapse.__file__), "static")
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)
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}
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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_V2_PREFIX] = KeyApiV2Resource(self)
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if name == "metrics" and self.config.metrics.enable_metrics:
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resources[METRICS_PREFIX] = MetricsResource(RegistryProxy)
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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_tcp_replication().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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_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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elif listener.type == "replication":
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services = listen_tcp(
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listener.bind_addresses,
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listener.port,
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ReplicationStreamProtocolFactory(self),
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)
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for s in services:
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self.get_reactor().addSystemEventTrigger(
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"before", "shutdown", s.stopListening
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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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_base.listen_metrics(listener.bind_addresses, listener.port)
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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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hs = SynapseHomeServer(
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config.server.server_name,
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config=config,
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version_string="Synapse/" + get_distribution_version_string("matrix-synapse"),
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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 format_config_error(e: ConfigError) -> Iterator[str]:
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"""
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Formats a config error neatly
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The idea is to format the immediate error, plus the "causes" of those errors,
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hopefully in a way that makes sense to the user. For example:
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Error in configuration at 'oidc_config.user_mapping_provider.config.display_name_template':
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Failed to parse config for module 'JinjaOidcMappingProvider':
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invalid jinja template:
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unexpected end of template, expected 'end of print statement'.
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Args:
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e: the error to be formatted
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Returns: An iterator which yields string fragments to be formatted
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"""
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yield "Error in configuration"
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if e.path:
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yield " at '%s'" % (".".join(e.path),)
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yield ":\n %s" % (e.msg,)
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parent_e = e.__cause__
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indent = 1
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while parent_e:
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indent += 1
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yield ":\n%s%s" % (" " * indent, str(parent_e))
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parent_e = parent_e.__cause__
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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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