diff --git a/changelog.d/4804.feature b/changelog.d/4804.feature new file mode 100644 index 0000000000..a4c0b196f6 --- /dev/null +++ b/changelog.d/4804.feature @@ -0,0 +1 @@ +Add configurable rate limiting to the /register endpoint. diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml index e0140003fd..3dd0b4a1a8 100644 --- a/docs/sample_config.yaml +++ b/docs/sample_config.yaml @@ -393,6 +393,17 @@ federation_rc_reject_limit: 50 # federation_rc_concurrent: 3 +# Number of registration requests a client can send per second. +# Defaults to 1/minute (0.17). +# +#rc_registration_requests_per_second: 0.17 + +# Number of registration requests a client can send before being +# throttled. +# Defaults to 3. +# +#rc_registration_request_burst_count: 3.0 + # Directory where uploaded images and attachments are stored. @@ -580,6 +591,8 @@ turn_allow_guests: True ## Registration ## +# Registration can be rate-limited using the parameters in the "Ratelimiting" +# section of this file. # Enable registration for new users. enable_registration: False @@ -657,17 +670,6 @@ trusted_third_party_id_servers: # autocreate_auto_join_rooms: true -# Number of registration requests a client can send per second. -# Defaults to 1/minute (0.17). -# -#rc_registration_requests_per_second: 0.17 - -# Number of registration requests a client can send before being -# throttled. -# Defaults to 3. -# -#rc_registration_request_burst_count: 3.0 - ## Metrics ### diff --git a/synapse/config/ratelimiting.py b/synapse/config/ratelimiting.py index 54b71e6841..093042fdb9 100644 --- a/synapse/config/ratelimiting.py +++ b/synapse/config/ratelimiting.py @@ -27,6 +27,13 @@ class RatelimitConfig(Config): self.federation_rc_reject_limit = config["federation_rc_reject_limit"] self.federation_rc_concurrent = config["federation_rc_concurrent"] + self.rc_registration_requests_per_second = config.get( + "rc_registration_requests_per_second", 0.17, + ) + self.rc_registration_request_burst_count = config.get( + "rc_registration_request_burst_count", 3, + ) + def default_config(self, **kwargs): return """\ ## Ratelimiting ## @@ -62,4 +69,15 @@ class RatelimitConfig(Config): # single server # federation_rc_concurrent: 3 + + # Number of registration requests a client can send per second. + # Defaults to 1/minute (0.17). + # + #rc_registration_requests_per_second: 0.17 + + # Number of registration requests a client can send before being + # throttled. + # Defaults to 3. + # + #rc_registration_request_burst_count: 3.0 """ diff --git a/synapse/config/registration.py b/synapse/config/registration.py index d32f6fff73..d34dc9e456 100644 --- a/synapse/config/registration.py +++ b/synapse/config/registration.py @@ -54,13 +54,6 @@ class RegistrationConfig(Config): config.get("disable_msisdn_registration", False) ) - self.rc_registration_requests_per_second = config.get( - "rc_registration_requests_per_second", 0.17, - ) - self.rc_registration_request_burst_count = config.get( - "rc_registration_request_burst_count", 3, - ) - def default_config(self, generate_secrets=False, **kwargs): if generate_secrets: registration_shared_secret = 'registration_shared_secret: "%s"' % ( @@ -71,6 +64,8 @@ class RegistrationConfig(Config): return """\ ## Registration ## + # Registration can be rate-limited using the parameters in the "Ratelimiting" + # section of this file. # Enable registration for new users. enable_registration: False @@ -147,17 +142,6 @@ class RegistrationConfig(Config): # users cannot be auto-joined since they do not exist. # autocreate_auto_join_rooms: true - - # Number of registration requests a client can send per second. - # Defaults to 1/minute (0.17). - # - #rc_registration_requests_per_second: 0.17 - - # Number of registration requests a client can send before being - # throttled. - # Defaults to 3. - # - #rc_registration_request_burst_count: 3.0 """ % locals() def add_arguments(self, parser): diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index 47d5e276f8..03130edc54 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -61,7 +61,7 @@ class RegistrationHandler(BaseHandler): self.user_directory_handler = hs.get_user_directory_handler() self.captcha_client = CaptchaServerHttpClient(hs) self.identity_handler = self.hs.get_handlers().identity_handler - self.ratelimiter = hs.get_ratelimiter() + self.ratelimiter = hs.get_registration_ratelimiter() self._next_generated_user_id = None diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py index b7f354570c..6f34029431 100644 --- a/synapse/rest/client/v2_alpha/register.py +++ b/synapse/rest/client/v2_alpha/register.py @@ -196,7 +196,7 @@ class RegisterRestServlet(RestServlet): self.identity_handler = hs.get_handlers().identity_handler self.room_member_handler = hs.get_room_member_handler() self.macaroon_gen = hs.get_macaroon_generator() - self.ratelimiter = hs.get_ratelimiter() + self.ratelimiter = hs.get_registration_ratelimiter() self.clock = hs.get_clock() @interactive_auth_handler diff --git a/synapse/server.py b/synapse/server.py index 4323e7ff12..72835e8c86 100644 --- a/synapse/server.py +++ b/synapse/server.py @@ -206,6 +206,7 @@ class HomeServer(object): self.clock = Clock(reactor) self.distributor = Distributor() self.ratelimiter = Ratelimiter() + self.registration_ratelimiter = Ratelimiter() self.datastore = None @@ -251,6 +252,9 @@ class HomeServer(object): def get_ratelimiter(self): return self.ratelimiter + def get_registration_ratelimiter(self): + return self.registration_ratelimiter + def build_federation_client(self): return FederationClient(self)