diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/constants.py | 1 | ||||
| -rw-r--r-- | synapse/config/api.py | 2 | ||||
| -rw-r--r-- | synapse/federation/federation_server.py | 16 | ||||
| -rw-r--r-- | synapse/handlers/room.py | 10 | ||||
| -rw-r--r-- | synapse/http/federation/matrix_federation_agent.py | 90 | ||||
| -rw-r--r-- | synapse/storage/state.py | 38 |
6 files changed, 115 insertions, 42 deletions
diff --git a/synapse/api/constants.py b/synapse/api/constants.py index fedfb92b3e..f47c33a074 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py @@ -73,6 +73,7 @@ class EventTypes(object): RoomHistoryVisibility = "m.room.history_visibility" CanonicalAlias = "m.room.canonical_alias" RoomAvatar = "m.room.avatar" + RoomEncryption = "m.room.encryption" GuestAccess = "m.room.guest_access" # These are used for validation diff --git a/synapse/config/api.py b/synapse/config/api.py index 403d96ba76..9f25bbc5cb 100644 --- a/synapse/config/api.py +++ b/synapse/config/api.py @@ -24,6 +24,7 @@ class ApiConfig(Config): EventTypes.JoinRules, EventTypes.CanonicalAlias, EventTypes.RoomAvatar, + EventTypes.RoomEncryption, EventTypes.Name, ]) @@ -36,5 +37,6 @@ class ApiConfig(Config): - "{JoinRules}" - "{CanonicalAlias}" - "{RoomAvatar}" + - "{RoomEncryption}" - "{Name}" """.format(**vars(EventTypes)) diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py index aeadc9c564..3da86d4ba6 100644 --- a/synapse/federation/federation_server.py +++ b/synapse/federation/federation_server.py @@ -148,6 +148,22 @@ class FederationServer(FederationBase): logger.debug("[%s] Transaction is new", transaction.transaction_id) + # Reject if PDU count > 50 and EDU count > 100 + if (len(transaction.pdus) > 50 + or (hasattr(transaction, "edus") and len(transaction.edus) > 100)): + + logger.info( + "Transaction PDU or EDU count too large. Returning 400", + ) + + response = {} + yield self.transaction_actions.set_response( + origin, + transaction, + 400, response + ) + defer.returnValue((400, response)) + received_pdus_counter.inc(len(transaction.pdus)) origin_host, _ = parse_server_name(origin) diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py index 13ba9291b0..5e40e9ea46 100644 --- a/synapse/handlers/room.py +++ b/synapse/handlers/room.py @@ -263,6 +263,16 @@ class RoomCreationHandler(BaseHandler): } } + # Check if old room was non-federatable + + # Get old room's create event + old_room_create_event = yield self.store.get_create_event_for_room(old_room_id) + + # Check if the create event specified a non-federatable room + if not old_room_create_event.content.get("m.federate", True): + # If so, mark the new room as non-federatable as well + creation_content["m.federate"] = False + initial_state = dict() # Replicate relevant room events diff --git a/synapse/http/federation/matrix_federation_agent.py b/synapse/http/federation/matrix_federation_agent.py index 26649e70be..384d8a37a2 100644 --- a/synapse/http/federation/matrix_federation_agent.py +++ b/synapse/http/federation/matrix_federation_agent.py @@ -23,14 +23,17 @@ from zope.interface import implementer from twisted.internet import defer from twisted.internet.endpoints import HostnameEndpoint, wrapClientTLS +from twisted.internet.interfaces import IStreamClientEndpoint from twisted.web.client import URI, Agent, HTTPConnectionPool, RedirectAgent, readBody from twisted.web.http import stringToDatetime from twisted.web.http_headers import Headers from twisted.web.iweb import IAgent from synapse.http.federation.srv_resolver import SrvResolver, pick_server_from_list +from synapse.util import Clock from synapse.util.caches.ttlcache import TTLCache from synapse.util.logcontext import make_deferred_yieldable +from synapse.util.metrics import Measure # period to cache .well-known results for by default WELL_KNOWN_DEFAULT_CACHE_PERIOD = 24 * 3600 @@ -44,7 +47,6 @@ WELL_KNOWN_INVALID_CACHE_PERIOD = 1 * 3600 # cap for .well-known cache period WELL_KNOWN_MAX_CACHE_PERIOD = 48 * 3600 - logger = logging.getLogger(__name__) well_known_cache = TTLCache('well-known') @@ -78,6 +80,8 @@ class MatrixFederationAgent(object): _well_known_cache=well_known_cache, ): self._reactor = reactor + self._clock = Clock(reactor) + self._tls_client_options_factory = tls_client_options_factory if _srv_resolver is None: _srv_resolver = SrvResolver() @@ -98,6 +102,10 @@ class MatrixFederationAgent(object): ) self._well_known_agent = _well_known_agent + # our cache of .well-known lookup results, mapping from server name + # to delegated name. The values can be: + # `bytes`: a valid server-name + # `None`: there is no (valid) .well-known here self._well_known_cache = _well_known_cache @defer.inlineCallbacks @@ -152,12 +160,9 @@ class MatrixFederationAgent(object): class EndpointFactory(object): @staticmethod def endpointForURI(_uri): - logger.info( - "Connecting to %s:%i", - res.target_host.decode("ascii"), - res.target_port, + ep = LoggingHostnameEndpoint( + self._reactor, res.target_host, res.target_port, ) - ep = HostnameEndpoint(self._reactor, res.target_host, res.target_port) if tls_options is not None: ep = wrapClientTLS(tls_options, ep) return ep @@ -210,11 +215,7 @@ class MatrixFederationAgent(object): target_port=parsed_uri.port, )) - # try a SRV lookup - service_name = b"_matrix._tcp.%s" % (parsed_uri.host,) - server_list = yield self._srv_resolver.resolve_service(service_name) - - if not server_list and lookup_well_known: + if lookup_well_known: # try a .well-known lookup well_known_server = yield self._get_well_known(parsed_uri.host) @@ -250,6 +251,10 @@ class MatrixFederationAgent(object): res = yield self._route_matrix_uri(new_uri, lookup_well_known=False) defer.returnValue(res) + # try a SRV lookup + service_name = b"_matrix._tcp.%s" % (parsed_uri.host,) + server_list = yield self._srv_resolver.resolve_service(service_name) + if not server_list: target_host = parsed_uri.host port = 8448 @@ -283,14 +288,32 @@ class MatrixFederationAgent(object): None if there was no .well-known file. """ try: - cached = self._well_known_cache[server_name] - defer.returnValue(cached) + result = self._well_known_cache[server_name] except KeyError: - pass + # TODO: should we linearise so that we don't end up doing two .well-known + # requests for the same server in parallel? + with Measure(self._clock, "get_well_known"): + result, cache_period = yield self._do_get_well_known(server_name) + + if cache_period > 0: + self._well_known_cache.set(server_name, result, cache_period) - # TODO: should we linearise so that we don't end up doing two .well-known requests - # for the same server in parallel? + defer.returnValue(result) + + @defer.inlineCallbacks + def _do_get_well_known(self, server_name): + """Actually fetch and parse a .well-known, without checking the cache + Args: + server_name (bytes): name of the server, from the requested url + + Returns: + Deferred[Tuple[bytes|None|object],int]: + result, cache period, where result is one of: + - the new server name from the .well-known (as a `bytes`) + - None if there was no .well-known file. + - INVALID_WELL_KNOWN if the .well-known was invalid + """ uri = b"https://%s/.well-known/matrix/server" % (server_name, ) uri_str = uri.decode("ascii") logger.info("Fetching %s", uri_str) @@ -301,18 +324,7 @@ class MatrixFederationAgent(object): body = yield make_deferred_yieldable(readBody(response)) if response.code != 200: raise Exception("Non-200 response %s" % (response.code, )) - except Exception as e: - logger.info("Error fetching %s: %s", uri_str, e) - - # add some randomness to the TTL to avoid a stampeding herd every hour - # after startup - cache_period = WELL_KNOWN_INVALID_CACHE_PERIOD - cache_period += random.uniform(0, WELL_KNOWN_DEFAULT_CACHE_PERIOD_JITTER) - self._well_known_cache.set(server_name, None, cache_period) - defer.returnValue(None) - - try: parsed_body = json.loads(body.decode('utf-8')) logger.info("Response from .well-known: %s", parsed_body) if not isinstance(parsed_body, dict): @@ -320,7 +332,13 @@ class MatrixFederationAgent(object): if "m.server" not in parsed_body: raise Exception("Missing key 'm.server'") except Exception as e: - raise Exception("invalid .well-known response from %s: %s" % (uri_str, e,)) + logger.info("Error fetching %s: %s", uri_str, e) + + # add some randomness to the TTL to avoid a stampeding herd every hour + # after startup + cache_period = WELL_KNOWN_INVALID_CACHE_PERIOD + cache_period += random.uniform(0, WELL_KNOWN_DEFAULT_CACHE_PERIOD_JITTER) + defer.returnValue((None, cache_period)) result = parsed_body["m.server"].encode("ascii") @@ -336,10 +354,20 @@ class MatrixFederationAgent(object): else: cache_period = min(cache_period, WELL_KNOWN_MAX_CACHE_PERIOD) - if cache_period > 0: - self._well_known_cache.set(server_name, result, cache_period) + defer.returnValue((result, cache_period)) - defer.returnValue(result) + +@implementer(IStreamClientEndpoint) +class LoggingHostnameEndpoint(object): + """A wrapper for HostnameEndpint which logs when it connects""" + def __init__(self, reactor, host, port, *args, **kwargs): + self.host = host + self.port = port + self.ep = HostnameEndpoint(reactor, host, port, *args, **kwargs) + + def connect(self, protocol_factory): + logger.info("Connecting to %s:%i", self.host.decode("ascii"), self.port) + return self.ep.connect(protocol_factory) def _cache_period_from_headers(headers, time_now=time.time): diff --git a/synapse/storage/state.py b/synapse/storage/state.py index c3ab7db7ae..d14a7b2538 100644 --- a/synapse/storage/state.py +++ b/synapse/storage/state.py @@ -428,13 +428,9 @@ class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore): """ # for now we do this by looking at the create event. We may want to cache this # more intelligently in future. - state_ids = yield self.get_current_state_ids(room_id) - create_id = state_ids.get((EventTypes.Create, "")) - - if not create_id: - raise NotFoundError("Unknown room %s" % (room_id)) - create_event = yield self.get_event(create_id) + # Retrieve the room's create event + create_event = yield self.get_create_event_for_room(room_id) defer.returnValue(create_event.content.get("room_version", "1")) @defer.inlineCallbacks @@ -447,19 +443,39 @@ class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore): Returns: Deferred[unicode|None]: predecessor room id + + Raises: + NotFoundError if the room is unknown + """ + # Retrieve the room's create event + create_event = yield self.get_create_event_for_room(room_id) + + # Return predecessor if present + defer.returnValue(create_event.content.get("predecessor", None)) + + @defer.inlineCallbacks + def get_create_event_for_room(self, room_id): + """Get the create state event for a room. + + Args: + room_id (str) + + Returns: + Deferred[EventBase]: The room creation event. + + Raises: + NotFoundError if the room is unknown """ state_ids = yield self.get_current_state_ids(room_id) create_id = state_ids.get((EventTypes.Create, "")) # If we can't find the create event, assume we've hit a dead end if not create_id: - defer.returnValue(None) + raise NotFoundError("Unknown room %s" % (room_id)) - # Retrieve the room's create event + # Retrieve the room's create event and return create_event = yield self.get_event(create_id) - - # Return predecessor if present - defer.returnValue(create_event.content.get("predecessor", None)) + defer.returnValue(create_event) @cached(max_entries=100000, iterable=True) def get_current_state_ids(self, room_id): |