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-rw-r--r--tests/rest/client/v1/test_rooms.py87
-rw-r--r--tests/rest/client/v1/utils.py10
2 files changed, 93 insertions, 4 deletions
diff --git a/tests/rest/client/v1/test_rooms.py b/tests/rest/client/v1/test_rooms.py
index 60fef13e9f..c6c6edeac2 100644
--- a/tests/rest/client/v1/test_rooms.py
+++ b/tests/rest/client/v1/test_rooms.py
@@ -28,7 +28,7 @@ from synapse.api.constants import EventContentFields, EventTypes, Membership
 from synapse.handlers.pagination import PurgeStatus
 from synapse.rest.client.v1 import directory, login, profile, room
 from synapse.rest.client.v2_alpha import account, room_upgrade_rest_servlet
-from synapse.types import JsonDict, RoomAlias
+from synapse.types import JsonDict, RoomAlias, UserID
 from synapse.util.stringutils import random_string
 
 from tests import unittest
@@ -675,6 +675,91 @@ class RoomMemberStateTestCase(RoomBase):
         self.assertEquals(json.loads(content), channel.json_body)
 
 
+class RoomJoinRatelimitTestCase(RoomBase):
+    user_id = "@sid1:red"
+
+    servlets = [
+        profile.register_servlets,
+        room.register_servlets,
+    ]
+
+    @unittest.override_config(
+        {"rc_joins": {"local": {"per_second": 3, "burst_count": 3}}}
+    )
+    def test_join_local_ratelimit(self):
+        """Tests that local joins are actually rate-limited."""
+        for i in range(5):
+            self.helper.create_room_as(self.user_id)
+
+        self.helper.create_room_as(self.user_id, expect_code=429)
+
+    @unittest.override_config(
+        {"rc_joins": {"local": {"per_second": 3, "burst_count": 3}}}
+    )
+    def test_join_local_ratelimit_profile_change(self):
+        """Tests that sending a profile update into all of the user's joined rooms isn't
+        rate-limited by the rate-limiter on joins."""
+
+        # Create and join more rooms than the rate-limiting config allows in a second.
+        room_ids = [
+            self.helper.create_room_as(self.user_id),
+            self.helper.create_room_as(self.user_id),
+            self.helper.create_room_as(self.user_id),
+        ]
+        self.reactor.advance(1)
+        room_ids = room_ids + [
+            self.helper.create_room_as(self.user_id),
+            self.helper.create_room_as(self.user_id),
+            self.helper.create_room_as(self.user_id),
+        ]
+
+        # Create a profile for the user, since it hasn't been done on registration.
+        store = self.hs.get_datastore()
+        store.create_profile(UserID.from_string(self.user_id).localpart)
+
+        # Update the display name for the user.
+        path = "/_matrix/client/r0/profile/%s/displayname" % self.user_id
+        request, channel = self.make_request("PUT", path, {"displayname": "John Doe"})
+        self.render(request)
+        self.assertEquals(channel.code, 200, channel.json_body)
+
+        # Check that all the rooms have been sent a profile update into.
+        for room_id in room_ids:
+            path = "/_matrix/client/r0/rooms/%s/state/m.room.member/%s" % (
+                room_id,
+                self.user_id,
+            )
+
+            request, channel = self.make_request("GET", path)
+            self.render(request)
+            self.assertEquals(channel.code, 200)
+
+            self.assertIn("displayname", channel.json_body)
+            self.assertEquals(channel.json_body["displayname"], "John Doe")
+
+    @unittest.override_config(
+        {"rc_joins": {"local": {"per_second": 3, "burst_count": 3}}}
+    )
+    def test_join_local_ratelimit_idempotent(self):
+        """Tests that the room join endpoints remain idempotent despite rate-limiting
+        on room joins."""
+        room_id = self.helper.create_room_as(self.user_id)
+
+        # Let's test both paths to be sure.
+        paths_to_test = [
+            "/_matrix/client/r0/rooms/%s/join",
+            "/_matrix/client/r0/join/%s",
+        ]
+
+        for path in paths_to_test:
+            # Make sure we send more requests than the rate-limiting config would allow
+            # if all of these requests ended up joining the user to a room.
+            for i in range(6):
+                request, channel = self.make_request("POST", path % room_id, {})
+                self.render(request)
+                self.assertEquals(channel.code, 200)
+
+
 class RoomMessagesTestCase(RoomBase):
     """ Tests /rooms/$room_id/messages/$user_id/$msg_id REST events. """
 
diff --git a/tests/rest/client/v1/utils.py b/tests/rest/client/v1/utils.py
index 8933b560d2..e66c9a4c4c 100644
--- a/tests/rest/client/v1/utils.py
+++ b/tests/rest/client/v1/utils.py
@@ -39,7 +39,9 @@ class RestHelper(object):
     resource = attr.ib()
     auth_user_id = attr.ib()
 
-    def create_room_as(self, room_creator=None, is_public=True, tok=None):
+    def create_room_as(
+        self, room_creator=None, is_public=True, tok=None, expect_code=200,
+    ):
         temp_id = self.auth_user_id
         self.auth_user_id = room_creator
         path = "/_matrix/client/r0/createRoom"
@@ -54,9 +56,11 @@ class RestHelper(object):
         )
         render(request, self.resource, self.hs.get_reactor())
 
-        assert channel.result["code"] == b"200", channel.result
+        assert channel.result["code"] == b"%d" % expect_code, channel.result
         self.auth_user_id = temp_id
-        return channel.json_body["room_id"]
+
+        if expect_code == 200:
+            return channel.json_body["room_id"]
 
     def invite(self, room=None, src=None, targ=None, expect_code=200, tok=None):
         self.change_membership(