From b5ab2c428a1c5edd634ff084019811e5f6b963d8 Mon Sep 17 00:00:00 2001 From: Tuomas Ojamies Date: Tue, 15 Nov 2022 13:55:00 +0100 Subject: [PATCH] Support using SSL on worker endpoints. (#14128) * Fix missing SSL support in worker endpoints. * Add changelog * SSL for Replication endpoint * Remove unit test change * Refactor listener creation to reduce duplicated code * Fix the logger message * Update synapse/app/_base.py Co-authored-by: Patrick Cloke * Update synapse/app/_base.py Co-authored-by: Patrick Cloke * Update synapse/app/_base.py Co-authored-by: Patrick Cloke * Add config documentation for new TLS option Co-authored-by: Tuomas Ojamies Co-authored-by: Patrick Cloke Co-authored-by: Olivier Wilkinson (reivilibre) --- changelog.d/14128.misc | 1 + .../configuration/config_documentation.md | 20 +++++++ synapse/app/_base.py | 53 ++++++++++++++++++- synapse/app/generic_worker.py | 28 +++------- synapse/app/homeserver.py | 34 ++---------- synapse/config/workers.py | 7 +++ synapse/replication/http/_base.py | 10 +++- 7 files changed, 100 insertions(+), 53 deletions(-) create mode 100644 changelog.d/14128.misc diff --git a/changelog.d/14128.misc b/changelog.d/14128.misc new file mode 100644 index 0000000000..29168ef955 --- /dev/null +++ b/changelog.d/14128.misc @@ -0,0 +1 @@ +Add TLS support for generic worker endpoints. diff --git a/docs/usage/configuration/config_documentation.md b/docs/usage/configuration/config_documentation.md index 9a6bd08d01..f5937dd902 100644 --- a/docs/usage/configuration/config_documentation.md +++ b/docs/usage/configuration/config_documentation.md @@ -3893,6 +3893,26 @@ Example configuration: worker_replication_http_port: 9093 ``` --- +### `worker_replication_http_tls` + +Whether TLS should be used for talking to the HTTP replication port on the main +Synapse process. +The main Synapse process defines this with the `tls` option on its [listener](#listeners) that +has the `replication` resource enabled. + +**Please note:** by default, it is not safe to expose replication ports to the +public Internet, even with TLS enabled. +See [`worker_replication_secret`](#worker_replication_secret). + +Defaults to `false`. + +*Added in Synapse 1.72.0.* + +Example configuration: +```yaml +worker_replication_http_tls: true +``` +--- ### `worker_listeners` A worker can handle HTTP requests. To do so, a `worker_listeners` option diff --git a/synapse/app/_base.py b/synapse/app/_base.py index a683ebf4cb..8f5b1a20f5 100644 --- a/synapse/app/_base.py +++ b/synapse/app/_base.py @@ -47,6 +47,7 @@ from twisted.internet.tcp import Port from twisted.logger import LoggingFile, LogLevel from twisted.protocols.tls import TLSMemoryBIOFactory from twisted.python.threadpool import ThreadPool +from twisted.web.resource import Resource import synapse.util.caches from synapse.api.constants import MAX_PDU_SIZE @@ -55,12 +56,13 @@ from synapse.app.phone_stats_home import start_phone_stats_home from synapse.config import ConfigError from synapse.config._base import format_config_error from synapse.config.homeserver import HomeServerConfig -from synapse.config.server import ManholeConfig +from synapse.config.server import ListenerConfig, ManholeConfig from synapse.crypto import context_factory from synapse.events.presence_router import load_legacy_presence_router from synapse.events.spamcheck import load_legacy_spam_checkers from synapse.events.third_party_rules import load_legacy_third_party_event_rules from synapse.handlers.auth import load_legacy_password_auth_providers +from synapse.http.site import SynapseSite from synapse.logging.context import PreserveLoggingContext from synapse.logging.opentracing import init_tracer from synapse.metrics import install_gc_manager, register_threadpool @@ -357,6 +359,55 @@ def listen_tcp( return r # type: ignore[return-value] +def listen_http( + listener_config: ListenerConfig, + root_resource: Resource, + version_string: str, + max_request_body_size: int, + context_factory: IOpenSSLContextFactory, + reactor: IReactorSSL = reactor, +) -> List[Port]: + port = listener_config.port + bind_addresses = listener_config.bind_addresses + tls = listener_config.tls + + assert listener_config.http_options is not None + + site_tag = listener_config.http_options.tag + if site_tag is None: + site_tag = str(port) + + site = SynapseSite( + "synapse.access.%s.%s" % ("https" if tls else "http", site_tag), + site_tag, + listener_config, + root_resource, + version_string, + max_request_body_size=max_request_body_size, + reactor=reactor, + ) + if tls: + # refresh_certificate should have been called before this. + assert context_factory is not None + ports = listen_ssl( + bind_addresses, + port, + site, + context_factory, + reactor=reactor, + ) + logger.info("Synapse now listening on TCP port %d (TLS)", port) + else: + ports = listen_tcp( + bind_addresses, + port, + site, + reactor=reactor, + ) + logger.info("Synapse now listening on TCP port %d", port) + return ports + + def listen_ssl( bind_addresses: Collection[str], port: int, diff --git a/synapse/app/generic_worker.py b/synapse/app/generic_worker.py index 51446b49cd..1d9aef45c2 100644 --- a/synapse/app/generic_worker.py +++ b/synapse/app/generic_worker.py @@ -44,7 +44,7 @@ from synapse.config.server import ListenerConfig from synapse.federation.transport.server import TransportLayerServer from synapse.http.server import JsonResource, OptionsResource from synapse.http.servlet import RestServlet, parse_json_object_from_request -from synapse.http.site import SynapseRequest, SynapseSite +from synapse.http.site import SynapseRequest from synapse.logging.context import LoggingContext from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy from synapse.replication.http import REPLICATION_PREFIX, ReplicationRestResource @@ -288,15 +288,9 @@ class GenericWorkerServer(HomeServer): DATASTORE_CLASS = GenericWorkerSlavedStore # type: ignore def _listen_http(self, listener_config: ListenerConfig) -> None: - port = listener_config.port - bind_addresses = listener_config.bind_addresses assert listener_config.http_options is not None - site_tag = listener_config.http_options.tag - if site_tag is None: - site_tag = str(port) - # We always include a health resource. resources: Dict[str, Resource] = {"/health": HealthResource()} @@ -395,23 +389,15 @@ class GenericWorkerServer(HomeServer): root_resource = create_resource_tree(resources, OptionsResource()) - _base.listen_tcp( - bind_addresses, - port, - SynapseSite( - "synapse.access.http.%s" % (site_tag,), - site_tag, - listener_config, - root_resource, - self.version_string, - max_request_body_size=max_request_body_size(self.config), - reactor=self.get_reactor(), - ), + _base.listen_http( + listener_config, + root_resource, + self.version_string, + max_request_body_size(self.config), + self.tls_server_context_factory, reactor=self.get_reactor(), ) - logger.info("Synapse worker now listening on port %d", port) - def start_listening(self) -> None: for listener in self.config.worker.worker_listeners: if listener.type == "http": diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py index de3f08876f..4f4fee4782 100644 --- a/synapse/app/homeserver.py +++ b/synapse/app/homeserver.py @@ -37,8 +37,7 @@ from synapse.api.urls import ( from synapse.app import _base from synapse.app._base import ( handle_startup_exception, - listen_ssl, - listen_tcp, + listen_http, max_request_body_size, redirect_stdio_to_logs, register_start, @@ -53,7 +52,6 @@ from synapse.http.server import ( RootOptionsRedirectResource, StaticResource, ) -from synapse.http.site import SynapseSite from synapse.logging.context import LoggingContext from synapse.metrics import METRICS_PREFIX, MetricsResource, RegistryProxy from synapse.replication.http import REPLICATION_PREFIX, ReplicationRestResource @@ -83,8 +81,6 @@ class SynapseHomeServer(HomeServer): self, config: HomeServerConfig, listener_config: ListenerConfig ) -> Iterable[Port]: port = listener_config.port - bind_addresses = listener_config.bind_addresses - tls = listener_config.tls # Must exist since this is an HTTP listener. assert listener_config.http_options is not None site_tag = listener_config.http_options.tag @@ -140,37 +136,15 @@ class SynapseHomeServer(HomeServer): else: root_resource = OptionsResource() - site = SynapseSite( - "synapse.access.%s.%s" % ("https" if tls else "http", site_tag), - site_tag, + ports = listen_http( listener_config, create_resource_tree(resources, root_resource), self.version_string, - max_request_body_size=max_request_body_size(self.config), + max_request_body_size(self.config), + self.tls_server_context_factory, reactor=self.get_reactor(), ) - if tls: - # refresh_certificate should have been called before this. - assert self.tls_server_context_factory is not None - ports = listen_ssl( - bind_addresses, - port, - site, - self.tls_server_context_factory, - reactor=self.get_reactor(), - ) - logger.info("Synapse now listening on TCP port %d (TLS)", port) - - else: - ports = listen_tcp( - bind_addresses, - port, - site, - reactor=self.get_reactor(), - ) - logger.info("Synapse now listening on TCP port %d", port) - return ports def _configure_named_resource( diff --git a/synapse/config/workers.py b/synapse/config/workers.py index 0fb725dd8f..88b3168cbc 100644 --- a/synapse/config/workers.py +++ b/synapse/config/workers.py @@ -67,6 +67,7 @@ class InstanceLocationConfig: host: str port: int + tls: bool = False @attr.s @@ -149,6 +150,12 @@ class WorkerConfig(Config): # The port on the main synapse for HTTP replication endpoint self.worker_replication_http_port = config.get("worker_replication_http_port") + # The tls mode on the main synapse for HTTP replication endpoint. + # For backward compatibility this defaults to False. + self.worker_replication_http_tls = config.get( + "worker_replication_http_tls", False + ) + # The shared secret used for authentication when connecting to the main synapse. self.worker_replication_secret = config.get("worker_replication_secret", None) diff --git a/synapse/replication/http/_base.py b/synapse/replication/http/_base.py index acb0bd18f7..5e661f8c73 100644 --- a/synapse/replication/http/_base.py +++ b/synapse/replication/http/_base.py @@ -184,8 +184,10 @@ class ReplicationEndpoint(metaclass=abc.ABCMeta): client = hs.get_simple_http_client() local_instance_name = hs.get_instance_name() + # The value of these option should match the replication listener settings master_host = hs.config.worker.worker_replication_host master_port = hs.config.worker.worker_replication_http_port + master_tls = hs.config.worker.worker_replication_http_tls instance_map = hs.config.worker.instance_map @@ -205,9 +207,11 @@ class ReplicationEndpoint(metaclass=abc.ABCMeta): if instance_name == "master": host = master_host port = master_port + tls = master_tls elif instance_name in instance_map: host = instance_map[instance_name].host port = instance_map[instance_name].port + tls = instance_map[instance_name].tls else: raise Exception( "Instance %r not in 'instance_map' config" % (instance_name,) @@ -238,7 +242,11 @@ class ReplicationEndpoint(metaclass=abc.ABCMeta): "Unknown METHOD on %s replication endpoint" % (cls.NAME,) ) - uri = "http://%s:%s/_synapse/replication/%s/%s" % ( + # Here the protocol is hard coded to be http by default or https in case the replication + # port is set to have tls true. + scheme = "https" if tls else "http" + uri = "%s://%s:%s/_synapse/replication/%s/%s" % ( + scheme, host, port, cls.NAME,