From c3f79c9da56931453ab86a4c726da5a02f18fe1e Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Mon, 12 Mar 2018 16:17:08 +0000 Subject: [PATCH 1/3] Split out edu/query registration to a separate class --- synapse/federation/federation_server.py | 117 ++++++++++++++---------- synapse/handlers/device.py | 6 +- synapse/handlers/devicemessage.py | 2 +- synapse/handlers/directory.py | 2 +- synapse/handlers/e2e_keys.py | 2 +- synapse/handlers/presence.py | 10 +- synapse/handlers/profile.py | 2 +- synapse/handlers/receipts.py | 2 +- synapse/handlers/typing.py | 2 +- synapse/server.py | 5 + 10 files changed, 90 insertions(+), 60 deletions(-) diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index 9849953c9b..5b1914f2f4 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -17,7 +17,7 @@ import logging import simplejson as json from twisted.internet import defer -from synapse.api.errors import AuthError, FederationError, SynapseError +from synapse.api.errors import AuthError, FederationError, SynapseError, NotFoundError from synapse.crypto.event_signing import compute_event_signature from synapse.federation.federation_base import ( FederationBase, @@ -56,6 +56,8 @@ class FederationServer(FederationBase): self._server_linearizer = async.Linearizer("fed_server") self._transaction_linearizer = async.Linearizer("fed_txn_handler") + self.registry = hs.get_federation_registry() + # We cache responses to state queries, as they take a while and often # come in waves. self._state_resp_cache = ResponseCache(hs, timeout_ms=30000) @@ -67,35 +69,6 @@ class FederationServer(FederationBase): """ self.handler = handler - def register_edu_handler(self, edu_type, handler): - if edu_type in self.edu_handlers: - raise KeyError("Already have an EDU handler for %s" % (edu_type,)) - - self.edu_handlers[edu_type] = handler - - def register_query_handler(self, query_type, handler): - """Sets the handler callable that will be used to handle an incoming - federation Query of the given type. - - Args: - query_type (str): Category name of the query, which should match - the string used by make_query. - handler (callable): Invoked to handle incoming queries of this type - - handler is invoked as: - result = handler(args) - - where 'args' is a dict mapping strings to strings of the query - arguments. It should return a Deferred that will eventually yield an - object to encode as JSON. - """ - if query_type in self.query_handlers: - raise KeyError( - "Already have a Query handler for %s" % (query_type,) - ) - - self.query_handlers[query_type] = handler - @defer.inlineCallbacks @log_function def on_backfill_request(self, origin, room_id, versions, limit): @@ -229,16 +202,7 @@ class FederationServer(FederationBase): @defer.inlineCallbacks def received_edu(self, origin, edu_type, content): received_edus_counter.inc() - - if edu_type in self.edu_handlers: - try: - yield self.edu_handlers[edu_type](origin, content) - except SynapseError as e: - logger.info("Failed to handle edu %r: %r", edu_type, e) - except Exception as e: - logger.exception("Failed to handle edu %r", edu_type) - else: - logger.warn("Received EDU of type %s with no handler", edu_type) + yield self.registry.on_edu(edu_type, origin, content) @defer.inlineCallbacks @log_function @@ -328,14 +292,8 @@ class FederationServer(FederationBase): @defer.inlineCallbacks def on_query_request(self, query_type, args): received_queries_counter.inc(query_type) - - if query_type in self.query_handlers: - response = yield self.query_handlers[query_type](args) - defer.returnValue((200, response)) - else: - defer.returnValue( - (404, "No handler for Query type '%s'" % (query_type,)) - ) + resp = yield self.registry.on_query(query_type, args) + defer.returnValue((200, resp)) @defer.inlineCallbacks def on_make_join_request(self, room_id, user_id): @@ -607,3 +565,66 @@ class FederationServer(FederationBase): origin, room_id, event_dict ) defer.returnValue(ret) + + +class FederationHandlerRegistry(object): + """Allows classes to register themselves as handlers for a given EDU or + query type for incoming federation traffic. + """ + def __init__(self): + self.edu_handlers = {} + self.query_handlers = {} + + def register_edu_handler(self, edu_type, handler): + """Sets the handler callable that will be used to handle an incoming + federation EDU of the given type. + + Args: + edu_type (str): The type of the incoming EDU to register handler for + handler (Callable[str, dict]): A callable invoked on incoming EDU + of the given type. The arguments are the origin server name and + the EDU contents. + """ + if edu_type in self.edu_handlers: + raise KeyError("Already have an EDU handler for %s" % (edu_type,)) + + self.edu_handlers[edu_type] = handler + + def register_query_handler(self, query_type, handler): + """Sets the handler callable that will be used to handle an incoming + federation query of the given type. + + Args: + query_type (str): Category name of the query, which should match + the string used by make_query. + handler (Callable[dict] -> Deferred[dict]): Invoked to handle + incoming queries of this type. The return will be yielded + on and the result used as the response to the query request. + """ + if query_type in self.query_handlers: + raise KeyError( + "Already have a Query handler for %s" % (query_type,) + ) + + self.query_handlers[query_type] = handler + + @defer.inlineCallbacks + def on_edu(self, edu_type, origin, content): + handler = self.edu_handlers.get(edu_type) + if not handler: + logger.warn("No handler registered for EDU type %s", edu_type) + + try: + yield handler(origin, content) + except SynapseError as e: + logger.info("Failed to handle edu %r: %r", edu_type, e) + except Exception as e: + logger.exception("Failed to handle edu %r", edu_type) + + def on_query(self, query_type, args): + handler = self.query_handlers.get(query_type) + if not handler: + logger.warn("No handler registered for query type %s", query_type) + raise NotFoundError("No handler for Query type '%s'" % (query_type,)) + + return handler(args) diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py index 0e83453851..9e58dbe64e 100644 --- a/synapse/handlers/device.py +++ b/synapse/handlers/device.py @@ -41,10 +41,12 @@ class DeviceHandler(BaseHandler): self._edu_updater = DeviceListEduUpdater(hs, self) - self.federation.register_edu_handler( + federation_registry = hs.get_federation_registry() + + federation_registry.register_edu_handler( "m.device_list_update", self._edu_updater.incoming_device_list_update, ) - self.federation.register_query_handler( + federation_registry.register_query_handler( "user_devices", self.on_federation_query_user_devices, ) diff --git a/synapse/handlers/devicemessage.py b/synapse/handlers/devicemessage.py index d996aa90bb..f147a20b73 100644 --- a/synapse/handlers/devicemessage.py +++ b/synapse/handlers/devicemessage.py @@ -37,7 +37,7 @@ class DeviceMessageHandler(object): self.is_mine = hs.is_mine self.federation = hs.get_federation_sender() - hs.get_replication_layer().register_edu_handler( + hs.get_federation_registry().register_edu_handler( "m.direct_to_device", self.on_direct_to_device_edu ) diff --git a/synapse/handlers/directory.py b/synapse/handlers/directory.py index 8580ada60a..e955cb1f3c 100644 --- a/synapse/handlers/directory.py +++ b/synapse/handlers/directory.py @@ -37,7 +37,7 @@ class DirectoryHandler(BaseHandler): self.event_creation_handler = hs.get_event_creation_handler() self.federation = hs.get_replication_layer() - self.federation.register_query_handler( + hs.get_federation_registry().register_query_handler( "directory", self.on_directory_query ) diff --git a/synapse/handlers/e2e_keys.py b/synapse/handlers/e2e_keys.py index 9aa95f89e6..57f50a4e27 100644 --- a/synapse/handlers/e2e_keys.py +++ b/synapse/handlers/e2e_keys.py @@ -40,7 +40,7 @@ class E2eKeysHandler(object): # doesn't really work as part of the generic query API, because the # query request requires an object POST, but we abuse the # "query handler" interface. - self.federation.register_query_handler( + hs.get_federation_registry().register_query_handler( "client_keys", self.on_federation_query_client_keys ) diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py index cb158ba962..b11ae78350 100644 --- a/synapse/handlers/presence.py +++ b/synapse/handlers/presence.py @@ -98,24 +98,26 @@ class PresenceHandler(object): self.state = hs.get_state_handler() - self.replication.register_edu_handler( + federation_registry = hs.get_federation_registry() + + federation_registry.register_edu_handler( "m.presence", self.incoming_presence ) - self.replication.register_edu_handler( + federation_registry.register_edu_handler( "m.presence_invite", lambda origin, content: self.invite_presence( observed_user=UserID.from_string(content["observed_user"]), observer_user=UserID.from_string(content["observer_user"]), ) ) - self.replication.register_edu_handler( + federation_registry.register_edu_handler( "m.presence_accept", lambda origin, content: self.accept_presence( observed_user=UserID.from_string(content["observed_user"]), observer_user=UserID.from_string(content["observer_user"]), ) ) - self.replication.register_edu_handler( + federation_registry.register_edu_handler( "m.presence_deny", lambda origin, content: self.deny_presence( observed_user=UserID.from_string(content["observed_user"]), diff --git a/synapse/handlers/profile.py b/synapse/handlers/profile.py index c9c2879038..c386c79bbd 100644 --- a/synapse/handlers/profile.py +++ b/synapse/handlers/profile.py @@ -32,7 +32,7 @@ class ProfileHandler(BaseHandler): super(ProfileHandler, self).__init__(hs) self.federation = hs.get_replication_layer() - self.federation.register_query_handler( + hs.get_federation_registry().register_query_handler( "profile", self.on_profile_query ) diff --git a/synapse/handlers/receipts.py b/synapse/handlers/receipts.py index 0525765272..3f215c2b4e 100644 --- a/synapse/handlers/receipts.py +++ b/synapse/handlers/receipts.py @@ -35,7 +35,7 @@ class ReceiptsHandler(BaseHandler): self.store = hs.get_datastore() self.hs = hs self.federation = hs.get_federation_sender() - hs.get_replication_layer().register_edu_handler( + hs.get_federation_registry().register_edu_handler( "m.receipt", self._received_remote_receipt ) self.clock = self.hs.get_clock() diff --git a/synapse/handlers/typing.py b/synapse/handlers/typing.py index 82dedbbc99..77c0cf146f 100644 --- a/synapse/handlers/typing.py +++ b/synapse/handlers/typing.py @@ -56,7 +56,7 @@ class TypingHandler(object): self.federation = hs.get_federation_sender() - hs.get_replication_layer().register_edu_handler("m.typing", self._recv_edu) + hs.get_federation_registry().register_edu_handler("m.typing", self._recv_edu) hs.get_distributor().observe("user_left_room", self.user_left_room) diff --git a/synapse/server.py b/synapse/server.py index 5b6effbe31..1bc8d6f702 100644 --- a/synapse/server.py +++ b/synapse/server.py @@ -34,6 +34,7 @@ from synapse.events.builder import EventBuilderFactory from synapse.events.spamcheck import SpamChecker from synapse.federation import initialize_http_replication from synapse.federation.send_queue import FederationRemoteSendQueue +from synapse.federation.federation_server import FederationHandlerRegistry from synapse.federation.transport.client import TransportLayerClient from synapse.federation.transaction_queue import TransactionQueue from synapse.handlers import Handlers @@ -147,6 +148,7 @@ class HomeServer(object): 'groups_attestation_renewer', 'spam_checker', 'room_member_handler', + 'federation_registry', ] def __init__(self, hostname, **kwargs): @@ -387,6 +389,9 @@ class HomeServer(object): def build_room_member_handler(self): return RoomMemberHandler(self) + def build_federation_registry(self): + return FederationHandlerRegistry() + def remove_pusher(self, app_id, push_key, user_id): return self.get_pusherpool().remove_pusher(app_id, push_key, user_id) From 631a73f7ef7d89c43be47cf01c7c27a1d633052d Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Tue, 13 Mar 2018 10:39:19 +0000 Subject: [PATCH 2/3] Fix tests --- tests/handlers/test_directory.py | 9 ++++----- tests/handlers/test_profile.py | 9 ++++----- 2 files changed, 8 insertions(+), 10 deletions(-) diff --git a/tests/handlers/test_directory.py b/tests/handlers/test_directory.py index 5712773909..b103921498 100644 --- a/tests/handlers/test_directory.py +++ b/tests/handlers/test_directory.py @@ -35,21 +35,20 @@ class DirectoryTestCase(unittest.TestCase): @defer.inlineCallbacks def setUp(self): - self.mock_federation = Mock(spec=[ - "make_query", - "register_edu_handler", - ]) + self.mock_federation = Mock() + self.mock_registry = Mock() self.query_handlers = {} def register_query_handler(query_type, handler): self.query_handlers[query_type] = handler - self.mock_federation.register_query_handler = register_query_handler + self.mock_registry.register_query_handler = register_query_handler hs = yield setup_test_homeserver( http_client=None, resource_for_federation=Mock(), replication_layer=self.mock_federation, + federation_registry=self.mock_registry, ) hs.handlers = DirectoryHandlers(hs) diff --git a/tests/handlers/test_profile.py b/tests/handlers/test_profile.py index a5f47181d7..73223ffbd3 100644 --- a/tests/handlers/test_profile.py +++ b/tests/handlers/test_profile.py @@ -37,23 +37,22 @@ class ProfileTestCase(unittest.TestCase): @defer.inlineCallbacks def setUp(self): - self.mock_federation = Mock(spec=[ - "make_query", - "register_edu_handler", - ]) + self.mock_federation = Mock() + self.mock_registry = Mock() self.query_handlers = {} def register_query_handler(query_type, handler): self.query_handlers[query_type] = handler - self.mock_federation.register_query_handler = register_query_handler + self.mock_registry.register_query_handler = register_query_handler hs = yield setup_test_homeserver( http_client=None, handlers=None, resource_for_federation=Mock(), replication_layer=self.mock_federation, + federation_registry=self.mock_registry, ratelimiter=NonCallableMock(spec_set=[ "send_message", ]) From f43b6d6d9b7e6f6a94ba3e1886cec6ca864fad43 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Tue, 13 Mar 2018 11:29:17 +0000 Subject: [PATCH 3/3] Fix docstring types --- synapse/federation/federation_server.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index 5b1914f2f4..90302c9537 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -581,7 +581,7 @@ class FederationHandlerRegistry(object): Args: edu_type (str): The type of the incoming EDU to register handler for - handler (Callable[str, dict]): A callable invoked on incoming EDU + handler (Callable[[str, dict]]): A callable invoked on incoming EDU of the given type. The arguments are the origin server name and the EDU contents. """ @@ -597,7 +597,7 @@ class FederationHandlerRegistry(object): Args: query_type (str): Category name of the query, which should match the string used by make_query. - handler (Callable[dict] -> Deferred[dict]): Invoked to handle + handler (Callable[[dict], Deferred[dict]]): Invoked to handle incoming queries of this type. The return will be yielded on and the result used as the response to the query request. """