diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/errors.py | 1 | ||||
| -rw-r--r-- | synapse/config/server.py | 5 | ||||
| -rw-r--r-- | synapse/handlers/auth.py | 13 | ||||
| -rw-r--r-- | synapse/handlers/register.py | 18 | ||||
| -rw-r--r-- | synapse/storage/__init__.py | 34 |
5 files changed, 69 insertions, 2 deletions
diff --git a/synapse/api/errors.py b/synapse/api/errors.py index 6074df292f..14f5540280 100644 --- a/synapse/api/errors.py +++ b/synapse/api/errors.py @@ -55,6 +55,7 @@ class Codes(object): SERVER_NOT_TRUSTED = "M_SERVER_NOT_TRUSTED" CONSENT_NOT_GIVEN = "M_CONSENT_NOT_GIVEN" CANNOT_LEAVE_SERVER_NOTICE_ROOM = "M_CANNOT_LEAVE_SERVER_NOTICE_ROOM" + MAU_LIMIT_EXCEEDED = "M_MAU_LIMIT_EXCEEDED" class CodeMessageException(RuntimeError): diff --git a/synapse/config/server.py b/synapse/config/server.py index 18102656b0..8b335bff3f 100644 --- a/synapse/config/server.py +++ b/synapse/config/server.py @@ -67,6 +67,11 @@ class ServerConfig(Config): "block_non_admin_invites", False, ) + # Options to control access by tracking MAU + self.limit_usage_by_mau = config.get("limit_usage_by_mau", False) + self.max_mau_value = config.get( + "max_mau_value", 0, + ) # FIXME: federation_domain_whitelist needs sytests self.federation_domain_whitelist = None federation_domain_whitelist = config.get( diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index 402e44cdef..f3734f11bd 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -519,6 +519,7 @@ class AuthHandler(BaseHandler): """ logger.info("Logging in user %s on device %s", user_id, device_id) access_token = yield self.issue_access_token(user_id, device_id) + self._check_mau_limits() # the device *should* have been registered before we got here; however, # it's possible we raced against a DELETE operation. The thing we @@ -729,6 +730,7 @@ class AuthHandler(BaseHandler): defer.returnValue(access_token) def validate_short_term_login_token_and_get_user_id(self, login_token): + self._check_mau_limits() auth_api = self.hs.get_auth() try: macaroon = pymacaroons.Macaroon.deserialize(login_token) @@ -892,6 +894,17 @@ class AuthHandler(BaseHandler): else: return defer.succeed(False) + def _check_mau_limits(self): + """ + Ensure that if mau blocking is enabled that invalid users cannot + log in. + """ + if self.hs.config.limit_usage_by_mau is True: + current_mau = self.store.count_monthly_users() + if current_mau >= self.hs.config.max_mau_value: + raise AuthError( + 403, "MAU Limit Exceeded", errcode=Codes.MAU_LIMIT_EXCEEDED + ) @attr.s class MacaroonGenerator(object): diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index 7caff0cbc8..f46b8355c0 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -45,7 +45,7 @@ class RegistrationHandler(BaseHandler): hs (synapse.server.HomeServer): """ super(RegistrationHandler, self).__init__(hs) - + self.hs = hs self.auth = hs.get_auth() self._auth_handler = hs.get_auth_handler() self.profile_handler = hs.get_profile_handler() @@ -144,6 +144,7 @@ class RegistrationHandler(BaseHandler): Raises: RegistrationError if there was a problem registering. """ + self._check_mau_limits() password_hash = None if password: password_hash = yield self.auth_handler().hash(password) @@ -288,6 +289,7 @@ class RegistrationHandler(BaseHandler): 400, "User ID can only contain characters a-z, 0-9, or '=_-./'", ) + self._check_mau_limits() user = UserID(localpart, self.hs.hostname) user_id = user.to_string() @@ -437,7 +439,7 @@ class RegistrationHandler(BaseHandler): """ if localpart is None: raise SynapseError(400, "Request must include user id") - + self._check_mau_limits() need_register = True try: @@ -531,3 +533,15 @@ class RegistrationHandler(BaseHandler): remote_room_hosts=remote_room_hosts, action="join", ) + + def _check_mau_limits(self): + """ + Do not accept registrations if monthly active user limits exceeded + and limiting is enabled + """ + if self.hs.config.limit_usage_by_mau is True: + current_mau = self.store.count_monthly_users() + if current_mau >= self.hs.config.max_mau_value: + raise RegistrationError( + 403, "MAU Limit Exceeded", Codes.MAU_LIMIT_EXCEEDED + ) diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py index ba88a54979..6a75bf0e52 100644 --- a/synapse/storage/__init__.py +++ b/synapse/storage/__init__.py @@ -19,6 +19,7 @@ import logging import time from dateutil import tz +from prometheus_client import Gauge from synapse.api.constants import PresenceState from synapse.storage.devices import DeviceStore @@ -60,6 +61,13 @@ from .util.id_generators import ChainedIdGenerator, IdGenerator, StreamIdGenerat logger = logging.getLogger(__name__) +# Gauges to expose monthly active user control metrics +current_mau_gauge = Gauge("synapse_admin_current_mau", "Current MAU") +max_mau_value_gauge = Gauge("synapse_admin_max_mau_value", "MAU Limit") +limit_usage_by_mau_gauge = Gauge( + "synapse_admin_limit_usage_by_mau", "MAU Limiting enabled" +) + class DataStore(RoomMemberStore, RoomStore, RegistrationStore, StreamStore, ProfileStore, @@ -266,6 +274,32 @@ class DataStore(RoomMemberStore, RoomStore, return self.runInteraction("count_users", _count_users) + def count_monthly_users(self): + """ + Counts the number of users who used this homeserver in the last 30 days + This method should be refactored with count_daily_users - the only + reason not to is waiting on definition of mau + returns: + int: count of current monthly active users + """ + def _count_monthly_users(txn): + thirty_days_ago = int(self._clock.time_msec()) - (1000 * 60 * 60 * 24 * 30) + sql = """ + SELECT COUNT(*) FROM user_ips + WHERE last_seen > ? + """ + txn.execute(sql, (thirty_days_ago,)) + count, = txn.fetchone() + + self._current_mau = count + current_mau_gauge.set(self._current_mau) + max_mau_value_gauge.set(self.hs.config.max_mau_value) + limit_usage_by_mau_gauge.set(self.hs.config.limit_usage_by_mau) + logger.info("calling mau stats") + return count + return self.runInteraction("count_monthly_users", _count_monthly_users) + + def count_r30_users(self): """ Counts the number of 30 day retained users, defined as:- |