diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/auth.py | 17 | ||||
| -rw-r--r-- | synapse/api/ratelimiting.py | 14 | ||||
| -rw-r--r-- | synapse/appservice/__init__.py | 7 | ||||
| -rw-r--r-- | synapse/config/appservice.py | 6 | ||||
| -rw-r--r-- | synapse/handlers/_base.py | 6 | ||||
| -rw-r--r-- | synapse/handlers/message.py | 17 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/filter.py | 12 | ||||
| -rw-r--r-- | synapse/storage/_base.py | 1 | ||||
| -rw-r--r-- | synapse/types.py | 11 |
9 files changed, 66 insertions, 25 deletions
diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 1b3b55d517..b6a151a7ec 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -603,10 +603,12 @@ class Auth(object): """ # Can optionally look elsewhere in the request (e.g. headers) try: - user_id = yield self._get_appservice_user_id(request) + user_id, app_service = yield self._get_appservice_user_id(request) if user_id: request.authenticated_entity = user_id - defer.returnValue(synapse.types.create_requester(user_id)) + defer.returnValue( + synapse.types.create_requester(user_id, app_service=app_service) + ) access_token = get_access_token_from_request( request, self.TOKEN_NOT_FOUND_HTTP_STATUS @@ -644,7 +646,8 @@ class Auth(object): request.authenticated_entity = user.to_string() defer.returnValue(synapse.types.create_requester( - user, token_id, is_guest, device_id)) + user, token_id, is_guest, device_id, app_service=app_service) + ) except KeyError: raise AuthError( self.TOKEN_NOT_FOUND_HTTP_STATUS, "Missing access token.", @@ -659,14 +662,14 @@ class Auth(object): ) ) if app_service is None: - defer.returnValue(None) + defer.returnValue((None, None)) if "user_id" not in request.args: - defer.returnValue(app_service.sender) + defer.returnValue((app_service.sender, app_service)) user_id = request.args["user_id"][0] if app_service.sender == user_id: - defer.returnValue(app_service.sender) + defer.returnValue((app_service.sender, app_service)) if not app_service.is_interested_in_user(user_id): raise AuthError( @@ -678,7 +681,7 @@ class Auth(object): 403, "Application service has not registered this user" ) - defer.returnValue(user_id) + defer.returnValue((user_id, app_service)) @defer.inlineCallbacks def get_user_by_access_token(self, token, rights="access"): diff --git a/synapse/api/ratelimiting.py b/synapse/api/ratelimiting.py index 660dfb56e5..06cc8d90b8 100644 --- a/synapse/api/ratelimiting.py +++ b/synapse/api/ratelimiting.py @@ -23,7 +23,7 @@ class Ratelimiter(object): def __init__(self): self.message_counts = collections.OrderedDict() - def send_message(self, user_id, time_now_s, msg_rate_hz, burst_count): + def send_message(self, user_id, time_now_s, msg_rate_hz, burst_count, update=True): """Can the user send a message? Args: user_id: The user sending a message. @@ -32,12 +32,15 @@ class Ratelimiter(object): second. burst_count: How many messages the user can send before being limited. + update (bool): Whether to update the message rates or not. This is + useful to check if a message would be allowed to be sent before + its ready to be actually sent. Returns: A pair of a bool indicating if they can send a message now and a time in seconds of when they can next send a message. """ self.prune_message_counts(time_now_s) - message_count, time_start, _ignored = self.message_counts.pop( + message_count, time_start, _ignored = self.message_counts.get( user_id, (0., time_now_s, None), ) time_delta = time_now_s - time_start @@ -52,9 +55,10 @@ class Ratelimiter(object): allowed = True message_count += 1 - self.message_counts[user_id] = ( - message_count, time_start, msg_rate_hz - ) + if update: + self.message_counts[user_id] = ( + message_count, time_start, msg_rate_hz + ) if msg_rate_hz > 0: time_allowed = ( diff --git a/synapse/appservice/__init__.py b/synapse/appservice/__init__.py index 126a10efb7..91471f7e89 100644 --- a/synapse/appservice/__init__.py +++ b/synapse/appservice/__init__.py @@ -81,7 +81,7 @@ class ApplicationService(object): NS_LIST = [NS_USERS, NS_ALIASES, NS_ROOMS] def __init__(self, token, url=None, namespaces=None, hs_token=None, - sender=None, id=None, protocols=None): + sender=None, id=None, protocols=None, rate_limited=True): self.token = token self.url = url self.hs_token = hs_token @@ -95,6 +95,8 @@ class ApplicationService(object): else: self.protocols = set() + self.rate_limited = rate_limited + def _check_namespaces(self, namespaces): # Sanity check that it is of the form: # { @@ -234,5 +236,8 @@ class ApplicationService(object): def is_exclusive_room(self, room_id): return self._is_exclusive(ApplicationService.NS_ROOMS, room_id) + def is_rate_limited(self): + return self.rate_limited + def __str__(self): return "ApplicationService: %s" % (self.__dict__,) diff --git a/synapse/config/appservice.py b/synapse/config/appservice.py index d7537e8d44..82c50b8240 100644 --- a/synapse/config/appservice.py +++ b/synapse/config/appservice.py @@ -110,6 +110,11 @@ def _load_appservice(hostname, as_info, config_filename): user = UserID(localpart, hostname) user_id = user.to_string() + # Rate limiting for users of this AS is on by default (excludes sender) + rate_limited = True + if isinstance(as_info.get("rate_limited"), bool): + rate_limited = as_info.get("rate_limited") + # namespace checks if not isinstance(as_info.get("namespaces"), dict): raise KeyError("Requires 'namespaces' object.") @@ -155,4 +160,5 @@ def _load_appservice(hostname, as_info, config_filename): sender=user_id, id=as_info["id"], protocols=protocols, + rate_limited=rate_limited ) diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py index 4981643166..90f96209f8 100644 --- a/synapse/handlers/_base.py +++ b/synapse/handlers/_base.py @@ -57,10 +57,16 @@ class BaseHandler(object): time_now = self.clock.time() user_id = requester.user.to_string() + # The AS user itself is never rate limited. app_service = self.store.get_app_service_by_user_id(user_id) if app_service is not None: return # do not ratelimit app service senders + # Disable rate limiting of users belonging to any AS that is configured + # not to be rate limited in its registration file (rate_limited: true|false). + if requester.app_service and not requester.app_service.is_rate_limited(): + return + allowed, time_allowed = self.ratelimiter.send_message( user_id, time_now, msg_rate_hz=self.hs.config.rc_messages_per_second, diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 30ea9630f7..59eb26beaf 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -16,7 +16,7 @@ from twisted.internet import defer from synapse.api.constants import EventTypes, Membership -from synapse.api.errors import AuthError, Codes, SynapseError +from synapse.api.errors import AuthError, Codes, SynapseError, LimitExceededError from synapse.crypto.event_signing import add_hashes_and_signatures from synapse.events.utils import serialize_event from synapse.events.validator import EventValidator @@ -239,6 +239,21 @@ class MessageHandler(BaseHandler): "Tried to send member event through non-member codepath" ) + # We check here if we are currently being rate limited, so that we + # don't do unnecessary work. We check again just before we actually + # send the event. + time_now = self.clock.time() + allowed, time_allowed = self.ratelimiter.send_message( + event.sender, time_now, + msg_rate_hz=self.hs.config.rc_messages_per_second, + burst_count=self.hs.config.rc_message_burst_count, + update=False, + ) + if not allowed: + raise LimitExceededError( + retry_after_ms=int(1000 * (time_allowed - time_now)), + ) + user = UserID.from_string(event.sender) assert self.hs.is_mine(user), "User must be our own: %s" % (user,) diff --git a/synapse/rest/client/v2_alpha/filter.py b/synapse/rest/client/v2_alpha/filter.py index 510f8b2c74..b4084fec62 100644 --- a/synapse/rest/client/v2_alpha/filter.py +++ b/synapse/rest/client/v2_alpha/filter.py @@ -15,7 +15,7 @@ from twisted.internet import defer -from synapse.api.errors import AuthError, SynapseError +from synapse.api.errors import AuthError, SynapseError, StoreError, Codes from synapse.http.servlet import RestServlet, parse_json_object_from_request from synapse.types import UserID @@ -45,7 +45,7 @@ class GetFilterRestServlet(RestServlet): raise AuthError(403, "Cannot get filters for other users") if not self.hs.is_mine(target_user): - raise SynapseError(400, "Can only get filters for local users") + raise AuthError(403, "Can only get filters for local users") try: filter_id = int(filter_id) @@ -59,8 +59,8 @@ class GetFilterRestServlet(RestServlet): ) defer.returnValue((200, filter.get_filter_json())) - except KeyError: - raise SynapseError(400, "No such filter") + except (KeyError, StoreError): + raise SynapseError(400, "No such filter", errcode=Codes.NOT_FOUND) class CreateFilterRestServlet(RestServlet): @@ -74,6 +74,7 @@ class CreateFilterRestServlet(RestServlet): @defer.inlineCallbacks def on_POST(self, request, user_id): + target_user = UserID.from_string(user_id) requester = yield self.auth.get_user_by_req(request) @@ -81,10 +82,9 @@ class CreateFilterRestServlet(RestServlet): raise AuthError(403, "Cannot create filters for other users") if not self.hs.is_mine(target_user): - raise SynapseError(400, "Can only create filters for local users") + raise AuthError(403, "Can only create filters for local users") content = parse_json_object_from_request(request) - filter_id = yield self.filtering.add_user_filter( user_localpart=target_user.localpart, user_filter=content, diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 49fa8614f2..d828d6ee1d 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -85,7 +85,6 @@ class LoggingTransaction(object): sql_logger.debug("[SQL] {%s} %s", self.name, sql) sql = self.database_engine.convert_param_style(sql) - if args: try: sql_logger.debug( diff --git a/synapse/types.py b/synapse/types.py index 1694af1250..ffab12df09 100644 --- a/synapse/types.py +++ b/synapse/types.py @@ -18,8 +18,9 @@ from synapse.api.errors import SynapseError from collections import namedtuple -Requester = namedtuple("Requester", - ["user", "access_token_id", "is_guest", "device_id"]) +Requester = namedtuple("Requester", [ + "user", "access_token_id", "is_guest", "device_id", "app_service", +]) """ Represents the user making a request @@ -29,11 +30,12 @@ Attributes: request, or None if it came via the appservice API or similar is_guest (bool): True if the user making this request is a guest user device_id (str|None): device_id which was set at authentication time + app_service (ApplicationService|None): the AS requesting on behalf of the user """ def create_requester(user_id, access_token_id=None, is_guest=False, - device_id=None): + device_id=None, app_service=None): """ Create a new ``Requester`` object @@ -43,13 +45,14 @@ def create_requester(user_id, access_token_id=None, is_guest=False, request, or None if it came via the appservice API or similar is_guest (bool): True if the user making this request is a guest user device_id (str|None): device_id which was set at authentication time + app_service (ApplicationService|None): the AS requesting on behalf of the user Returns: Requester """ if not isinstance(user_id, UserID): user_id = UserID.from_string(user_id) - return Requester(user_id, access_token_id, is_guest, device_id) + return Requester(user_id, access_token_id, is_guest, device_id, app_service) def get_domain_from_id(string): |