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-rw-r--r--synapse/handlers/register.py41
1 files changed, 25 insertions, 16 deletions
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py
index cff6b0d375..3c142a4395 100644
--- a/synapse/handlers/register.py
+++ b/synapse/handlers/register.py
@@ -168,6 +168,7 @@ class RegistrationHandler(BaseHandler):
         Raises:
             RegistrationError if there was a problem registering.
         """
+        yield self._check_registration_ratelimit(address)
 
         yield self.auth.check_auth_blocking(threepid=threepid)
         password_hash = None
@@ -414,6 +415,30 @@ class RegistrationHandler(BaseHandler):
             ratelimit=False,
         )
 
+    def _check_registration_ratelimit(self, address):
+        """A simple helper method to check whether the registration rate limit has been hit
+        for a given IP address
+
+        Args:
+            address (str): the IP address used to perform the registration.
+
+        Raises:
+            LimitExceededError: If the rate limit has been exceeded.
+        """
+        time_now = self.clock.time()
+
+        allowed, time_allowed = self.ratelimiter.can_do_action(
+            address,
+            time_now_s=time_now,
+            rate_hz=self.hs.config.rc_registration.per_second,
+            burst_count=self.hs.config.rc_registration.burst_count,
+        )
+
+        if not allowed:
+            raise LimitExceededError(
+                retry_after_ms=int(1000 * (time_allowed - time_now))
+            )
+
     def register_with_store(
         self,
         user_id,
@@ -446,22 +471,6 @@ class RegistrationHandler(BaseHandler):
         Returns:
             Deferred
         """
-        # Don't rate limit for app services
-        if appservice_id is None and address is not None:
-            time_now = self.clock.time()
-
-            allowed, time_allowed = self.ratelimiter.can_do_action(
-                address,
-                time_now_s=time_now,
-                rate_hz=self.hs.config.rc_registration.per_second,
-                burst_count=self.hs.config.rc_registration.burst_count,
-            )
-
-            if not allowed:
-                raise LimitExceededError(
-                    retry_after_ms=int(1000 * (time_allowed - time_now))
-                )
-
         if self.hs.config.worker_app:
             return self._register_client(
                 user_id=user_id,