Merge branch 'develop' of github.com:matrix-org/synapse into develop

12 files changed, 138 insertions, 161 deletions

diff --git a/tests/api/test_auth.py b/tests/api/test_auth.py
index c96273480d..70d928defe 100644
--- a/tests/api/test_auth.py
+++ b/tests/api/test_auth.py
@@ -51,7 +51,7 @@ class AuthTestCase(unittest.TestCase):
         request = Mock(args={})
         request.args["access_token"] = [self.test_token]
         request.requestHeaders.getRawHeaders = Mock(return_value=[""])
-        (user, _) = yield self.auth.get_user_by_req(request)
+        (user, _, _) = yield self.auth.get_user_by_req(request)
         self.assertEquals(user.to_string(), self.test_user)
 
     def test_get_user_by_req_user_bad_token(self):
@@ -86,7 +86,7 @@ class AuthTestCase(unittest.TestCase):
         request = Mock(args={})
         request.args["access_token"] = [self.test_token]
         request.requestHeaders.getRawHeaders = Mock(return_value=[""])
-        (user, _) = yield self.auth.get_user_by_req(request)
+        (user, _, _) = yield self.auth.get_user_by_req(request)
         self.assertEquals(user.to_string(), self.test_user)
 
     def test_get_user_by_req_appservice_bad_token(self):
@@ -121,7 +121,7 @@ class AuthTestCase(unittest.TestCase):
         request.args["access_token"] = [self.test_token]
         request.args["user_id"] = [masquerading_user_id]
         request.requestHeaders.getRawHeaders = Mock(return_value=[""])
-        (user, _) = yield self.auth.get_user_by_req(request)
+        (user, _, _) = yield self.auth.get_user_by_req(request)
         self.assertEquals(user.to_string(), masquerading_user_id)
 
     def test_get_user_by_req_appservice_valid_token_bad_user_id(self):
@@ -159,6 +159,25 @@ class AuthTestCase(unittest.TestCase):
         self.assertEqual(UserID.from_string(user_id), user)
 
     @defer.inlineCallbacks
+    def test_get_guest_user_from_macaroon(self):
+        user_id = "@baldrick:matrix.org"
+        macaroon = pymacaroons.Macaroon(
+            location=self.hs.config.server_name,
+            identifier="key",
+            key=self.hs.config.macaroon_secret_key)
+        macaroon.add_first_party_caveat("gen = 1")
+        macaroon.add_first_party_caveat("type = access")
+        macaroon.add_first_party_caveat("user_id = %s" % (user_id,))
+        macaroon.add_first_party_caveat("guest = true")
+        serialized = macaroon.serialize()
+
+        user_info = yield self.auth._get_user_from_macaroon(serialized)
+        user = user_info["user"]
+        is_guest = user_info["is_guest"]
+        self.assertEqual(UserID.from_string(user_id), user)
+        self.assertTrue(is_guest)
+
+    @defer.inlineCallbacks
     def test_get_user_from_macaroon_user_db_mismatch(self):
         self.store.get_user_by_access_token = Mock(
             return_value={"name": "@percy:matrix.org"}
diff --git a/tests/handlers/test_presence.py b/tests/handlers/test_presence.py
index 29372d488a..10d4482cce 100644
--- a/tests/handlers/test_presence.py
+++ b/tests/handlers/test_presence.py
@@ -650,9 +650,30 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
             {"presence": ONLINE}
         )
 
+        # Apple sees self-reflection even without room_id
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_apple,
+            from_key=0,
+        )
+
+        self.assertEquals(self.event_source.get_current_key(), 1)
+        self.assertEquals(events,
+            [
+                {"type": "m.presence",
+                 "content": {
+                    "user_id": "@apple:test",
+                    "presence": ONLINE,
+                    "last_active_ago": 0,
+                }},
+            ],
+            msg="Presence event should be visible to self-reflection"
+        )
+
         # Apple sees self-reflection
-        (events, _) = yield self.event_source.get_new_events_for_user(
-            self.u_apple, 0, None
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_apple,
+            from_key=0,
+            room_ids=[self.room_id],
         )
 
         self.assertEquals(self.event_source.get_current_key(), 1)
@@ -684,8 +705,10 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
         )
 
         # Banana sees it because of presence subscription
-        (events, _) = yield self.event_source.get_new_events_for_user(
-            self.u_banana, 0, None
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_banana,
+            from_key=0,
+            room_ids=[self.room_id],
         )
 
         self.assertEquals(self.event_source.get_current_key(), 1)
@@ -702,8 +725,10 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
         )
 
         # Elderberry sees it because of same room
-        (events, _) = yield self.event_source.get_new_events_for_user(
-            self.u_elderberry, 0, None
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_elderberry,
+            from_key=0,
+            room_ids=[self.room_id],
         )
 
         self.assertEquals(self.event_source.get_current_key(), 1)
@@ -720,8 +745,10 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
         )
 
         # Durian is not in the room, should not see this event
-        (events, _) = yield self.event_source.get_new_events_for_user(
-            self.u_durian, 0, None
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_durian,
+            from_key=0,
+            room_ids=[],
         )
 
         self.assertEquals(self.event_source.get_current_key(), 1)
@@ -767,8 +794,9 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
                  "accepted": True},
         ], presence)
 
-        (events, _) = yield self.event_source.get_new_events_for_user(
-            self.u_apple, 1, None
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_apple,
+            from_key=1,
         )
 
         self.assertEquals(self.event_source.get_current_key(), 2)
@@ -858,8 +886,10 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
             )
         )
 
-        (events, _) = yield self.event_source.get_new_events_for_user(
-            self.u_apple, 0, None
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_apple,
+            from_key=0,
+            room_ids=[self.room_id],
         )
 
         self.assertEquals(self.event_source.get_current_key(), 1)
@@ -905,8 +935,10 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
 
         self.assertEquals(self.event_source.get_current_key(), 1)
 
-        (events, _) = yield self.event_source.get_new_events_for_user(
-            self.u_apple, 0, None
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_apple,
+            from_key=0,
+            room_ids=[self.room_id,]
         )
         self.assertEquals(events,
             [
@@ -932,8 +964,10 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
 
         self.assertEquals(self.event_source.get_current_key(), 2)
 
-        (events, _) = yield self.event_source.get_new_events_for_user(
-            self.u_apple, 0, None
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_apple,
+            from_key=0,
+            room_ids=[self.room_id,]
         )
         self.assertEquals(events,
             [
@@ -966,8 +1000,9 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
 
         self.room_members.append(self.u_clementine)
 
-        (events, _) = yield self.event_source.get_new_events_for_user(
-            self.u_apple, 0, None
+        (events, _) = yield self.event_source.get_new_events(
+            user=self.u_apple,
+            from_key=0,
         )
 
         self.assertEquals(self.event_source.get_current_key(), 1)
diff --git a/tests/handlers/test_typing.py b/tests/handlers/test_typing.py
index 41bb08b7ca..2d7ba43561 100644
--- a/tests/handlers/test_typing.py
+++ b/tests/handlers/test_typing.py
@@ -187,7 +187,10 @@ class TypingNotificationsTestCase(unittest.TestCase):
         ])
 
         self.assertEquals(self.event_source.get_current_key(), 1)
-        events = yield self.event_source.get_new_events_for_user(self.u_apple, 0, None)
+        events = yield self.event_source.get_new_events(
+            room_ids=[self.room_id],
+            from_key=0,
+        )
         self.assertEquals(
             events[0],
             [
@@ -250,7 +253,10 @@ class TypingNotificationsTestCase(unittest.TestCase):
         ])
 
         self.assertEquals(self.event_source.get_current_key(), 1)
-        events = yield self.event_source.get_new_events_for_user(self.u_apple, 0, None)
+        events = yield self.event_source.get_new_events(
+            room_ids=[self.room_id],
+            from_key=0
+        )
         self.assertEquals(
             events[0],
             [
@@ -306,7 +312,10 @@ class TypingNotificationsTestCase(unittest.TestCase):
         yield put_json.await_calls()
 
         self.assertEquals(self.event_source.get_current_key(), 1)
-        events = yield self.event_source.get_new_events_for_user(self.u_apple, 0, None)
+        events = yield self.event_source.get_new_events(
+            room_ids=[self.room_id],
+            from_key=0,
+        )
         self.assertEquals(
             events[0],
             [
@@ -337,7 +346,10 @@ class TypingNotificationsTestCase(unittest.TestCase):
         self.on_new_event.reset_mock()
 
         self.assertEquals(self.event_source.get_current_key(), 1)
-        events = yield self.event_source.get_new_events_for_user(self.u_apple, 0, None)
+        events = yield self.event_source.get_new_events(
+            room_ids=[self.room_id],
+            from_key=0,
+        )
         self.assertEquals(
             events[0],
             [
@@ -356,7 +368,10 @@ class TypingNotificationsTestCase(unittest.TestCase):
         ])
 
         self.assertEquals(self.event_source.get_current_key(), 2)
-        events = yield self.event_source.get_new_events_for_user(self.u_apple, 1, None)
+        events = yield self.event_source.get_new_events(
+            room_ids=[self.room_id],
+            from_key=1,
+        )
         self.assertEquals(
             events[0],
             [
@@ -383,7 +398,10 @@ class TypingNotificationsTestCase(unittest.TestCase):
         self.on_new_event.reset_mock()
 
         self.assertEquals(self.event_source.get_current_key(), 3)
-        events = yield self.event_source.get_new_events_for_user(self.u_apple, 0, None)
+        events = yield self.event_source.get_new_events(
+            room_ids=[self.room_id],
+            from_key=0,
+        )
         self.assertEquals(
             events[0],
             [
diff --git a/tests/rest/client/v1/test_presence.py b/tests/rest/client/v1/test_presence.py
index 0e3b922246..7f29d73d95 100644
--- a/tests/rest/client/v1/test_presence.py
+++ b/tests/rest/client/v1/test_presence.py
@@ -47,7 +47,14 @@ class NullSource(object):
     def __init__(self, hs):
         pass
 
-    def get_new_events_for_user(self, user, from_key, limit):
+    def get_new_events(
+            self,
+            user,
+            from_key,
+            room_ids=None,
+            limit=None,
+            is_guest=None
+    ):
         return defer.succeed(([], from_key))
 
     def get_current_key(self, direction='f'):
@@ -86,10 +93,11 @@ class PresenceStateTestCase(unittest.TestCase):
             return defer.succeed([])
         self.datastore.get_presence_list = get_presence_list
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(myid),
                 "token_id": 1,
+                "is_guest": False,
             }
 
         hs.get_v1auth()._get_user_by_access_token = _get_user_by_access_token
@@ -173,10 +181,11 @@ class PresenceListTestCase(unittest.TestCase):
             )
         self.datastore.has_presence_state = has_presence_state
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(myid),
                 "token_id": 1,
+                "is_guest": False,
             }
 
         hs.handlers.room_member_handler = Mock(
@@ -291,8 +300,8 @@ class PresenceEventStreamTestCase(unittest.TestCase):
 
         hs.get_clock().time_msec.return_value = 1000000
 
-        def _get_user_by_req(req=None):
-            return (UserID.from_string(myid), "")
+        def _get_user_by_req(req=None, allow_guest=False):
+            return (UserID.from_string(myid), "", False)
 
         hs.get_v1auth().get_user_by_req = _get_user_by_req
 
diff --git a/tests/rest/client/v1/test_profile.py b/tests/rest/client/v1/test_profile.py
index 929e5e5dd4..adcc1d1969 100644
--- a/tests/rest/client/v1/test_profile.py
+++ b/tests/rest/client/v1/test_profile.py
@@ -52,8 +52,8 @@ class ProfileTestCase(unittest.TestCase):
             replication_layer=Mock(),
         )
 
-        def _get_user_by_req(request=None):
-            return (UserID.from_string(myid), "")
+        def _get_user_by_req(request=None, allow_guest=False):
+            return (UserID.from_string(myid), "", False)
 
         hs.get_v1auth().get_user_by_req = _get_user_by_req
 
diff --git a/tests/rest/client/v1/test_rooms.py b/tests/rest/client/v1/test_rooms.py
index 93896dd076..b43563fa4b 100644
--- a/tests/rest/client/v1/test_rooms.py
+++ b/tests/rest/client/v1/test_rooms.py
@@ -54,10 +54,11 @@ class RoomPermissionsTestCase(RestTestCase):
 
         hs.get_handlers().federation_handler = Mock()
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(self.auth_user_id),
                 "token_id": 1,
+                "is_guest": False,
             }
         hs.get_v1auth()._get_user_by_access_token = _get_user_by_access_token
 
@@ -439,10 +440,11 @@ class RoomsMemberListTestCase(RestTestCase):
 
         self.auth_user_id = self.user_id
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(self.auth_user_id),
                 "token_id": 1,
+                "is_guest": False,
             }
         hs.get_v1auth()._get_user_by_access_token = _get_user_by_access_token
 
@@ -517,10 +519,11 @@ class RoomsCreateTestCase(RestTestCase):
 
         hs.get_handlers().federation_handler = Mock()
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(self.auth_user_id),
                 "token_id": 1,
+                "is_guest": False,
             }
         hs.get_v1auth()._get_user_by_access_token = _get_user_by_access_token
 
@@ -608,10 +611,11 @@ class RoomTopicTestCase(RestTestCase):
 
         hs.get_handlers().federation_handler = Mock()
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(self.auth_user_id),
                 "token_id": 1,
+                "is_guest": False,
             }
 
         hs.get_v1auth()._get_user_by_access_token = _get_user_by_access_token
@@ -713,10 +717,11 @@ class RoomMemberStateTestCase(RestTestCase):
 
         hs.get_handlers().federation_handler = Mock()
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(self.auth_user_id),
                 "token_id": 1,
+                "is_guest": False,
             }
         hs.get_v1auth()._get_user_by_access_token = _get_user_by_access_token
 
@@ -838,10 +843,11 @@ class RoomMessagesTestCase(RestTestCase):
 
         hs.get_handlers().federation_handler = Mock()
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(self.auth_user_id),
                 "token_id": 1,
+                "is_guest": False,
             }
         hs.get_v1auth()._get_user_by_access_token = _get_user_by_access_token
 
@@ -933,10 +939,11 @@ class RoomInitialSyncTestCase(RestTestCase):
 
         hs.get_handlers().federation_handler = Mock()
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(self.auth_user_id),
                 "token_id": 1,
+                "is_guest": False,
             }
         hs.get_v1auth()._get_user_by_access_token = _get_user_by_access_token
 
diff --git a/tests/rest/client/v1/test_typing.py b/tests/rest/client/v1/test_typing.py
index 6395ce79db..61b9cc743b 100644
--- a/tests/rest/client/v1/test_typing.py
+++ b/tests/rest/client/v1/test_typing.py
@@ -61,10 +61,11 @@ class RoomTypingTestCase(RestTestCase):
 
         hs.get_handlers().federation_handler = Mock()
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(self.auth_user_id),
                 "token_id": 1,
+                "is_guest": False,
             }
 
         hs.get_v1auth()._get_user_by_access_token = _get_user_by_access_token
@@ -115,7 +116,10 @@ class RoomTypingTestCase(RestTestCase):
         self.assertEquals(200, code)
 
         self.assertEquals(self.event_source.get_current_key(), 1)
-        events = yield self.event_source.get_new_events_for_user(self.user, 0, None)
+        events = yield self.event_source.get_new_events(
+            from_key=0,
+            room_ids=[self.room_id],
+        )
         self.assertEquals(
             events[0],
             [
diff --git a/tests/rest/client/v2_alpha/__init__.py b/tests/rest/client/v2_alpha/__init__.py
index f45570a1c0..fa9e17ec4f 100644
--- a/tests/rest/client/v2_alpha/__init__.py
+++ b/tests/rest/client/v2_alpha/__init__.py
@@ -43,10 +43,11 @@ class V2AlphaRestTestCase(unittest.TestCase):
             resource_for_federation=self.mock_resource,
         )
 
-        def _get_user_by_access_token(token=None):
+        def _get_user_by_access_token(token=None, allow_guest=False):
             return {
                 "user": UserID.from_string(self.USER_ID),
                 "token_id": 1,
+                "is_guest": False,
             }
         hs.get_auth()._get_user_by_access_token = _get_user_by_access_token
 
diff --git a/tests/storage/test_redaction.py b/tests/storage/test_redaction.py
index b57006fcb4..dbf9700e6a 100644
--- a/tests/storage/test_redaction.py
+++ b/tests/storage/test_redaction.py
@@ -120,7 +120,6 @@ class RedactionTestCase(unittest.TestCase):
             self.u_alice.to_string(),
             start,
             end,
-            None,  # Is currently ignored
         )
 
         self.assertEqual(1, len(results))
@@ -149,7 +148,6 @@ class RedactionTestCase(unittest.TestCase):
             self.u_alice.to_string(),
             start,
             end,
-            None,  # Is currently ignored
         )
 
         self.assertEqual(1, len(results))
@@ -199,7 +197,6 @@ class RedactionTestCase(unittest.TestCase):
             self.u_alice.to_string(),
             start,
             end,
-            None,  # Is currently ignored
         )
 
         self.assertEqual(1, len(results))
@@ -228,7 +225,6 @@ class RedactionTestCase(unittest.TestCase):
             self.u_alice.to_string(),
             start,
             end,
-            None,  # Is currently ignored
         )
 
         self.assertEqual(1, len(results))
diff --git a/tests/storage/test_stream.py b/tests/storage/test_stream.py
index a658a789aa..e5c2c5cc8e 100644
--- a/tests/storage/test_stream.py
+++ b/tests/storage/test_stream.py
@@ -68,7 +68,6 @@ class StreamStoreTestCase(unittest.TestCase):
             self.u_bob.to_string(),
             start,
             end,
-            None,  # Is currently ignored
         )
 
         self.assertEqual(1, len(results))
@@ -105,7 +104,6 @@ class StreamStoreTestCase(unittest.TestCase):
             self.u_alice.to_string(),
             start,
             end,
-            None,  # Is currently ignored
         )
 
         self.assertEqual(1, len(results))
@@ -147,7 +145,6 @@ class StreamStoreTestCase(unittest.TestCase):
             self.u_bob.to_string(),
             start,
             end,
-            None,  # Is currently ignored
         )
 
         # We should not get the message, as it happened *after* bob left.
@@ -175,7 +172,6 @@ class StreamStoreTestCase(unittest.TestCase):
             self.u_bob.to_string(),
             start,
             end,
-            None,  # Is currently ignored
         )
 
         # We should not get the message, as it happened *after* bob left.
diff --git a/tests/util/test_lock.py b/tests/util/test_lock.py
deleted file mode 100644
index 6a1e521b1e..0000000000
--- a/tests/util/test_lock.py
+++ /dev/null
@@ -1,108 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014 OpenMarket Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-
-from twisted.internet import defer
-from tests import unittest
-
-from synapse.util.lockutils import LockManager
-
-
-class LockManagerTestCase(unittest.TestCase):
-
-    def setUp(self):
-        self.lock_manager = LockManager()
-
-    @defer.inlineCallbacks
-    def test_one_lock(self):
-        key = "test"
-        deferred_lock1 = self.lock_manager.lock(key)
-
-        self.assertTrue(deferred_lock1.called)
-
-        lock1 = yield deferred_lock1
-
-        self.assertFalse(lock1.released)
-
-        lock1.release()
-
-        self.assertTrue(lock1.released)
-
-    @defer.inlineCallbacks
-    def test_concurrent_locks(self):
-        key = "test"
-        deferred_lock1 = self.lock_manager.lock(key)
-        deferred_lock2 = self.lock_manager.lock(key)
-
-        self.assertTrue(deferred_lock1.called)
-        self.assertFalse(deferred_lock2.called)
-
-        lock1 = yield deferred_lock1
-
-        self.assertFalse(lock1.released)
-        self.assertFalse(deferred_lock2.called)
-
-        lock1.release()
-
-        self.assertTrue(lock1.released)
-        self.assertTrue(deferred_lock2.called)
-
-        lock2 = yield deferred_lock2
-
-        lock2.release()
-
-    @defer.inlineCallbacks
-    def test_sequential_locks(self):
-        key = "test"
-        deferred_lock1 = self.lock_manager.lock(key)
-
-        self.assertTrue(deferred_lock1.called)
-
-        lock1 = yield deferred_lock1
-
-        self.assertFalse(lock1.released)
-
-        lock1.release()
-
-        self.assertTrue(lock1.released)
-
-        deferred_lock2 = self.lock_manager.lock(key)
-
-        self.assertTrue(deferred_lock2.called)
-
-        lock2 = yield deferred_lock2
-
-        self.assertFalse(lock2.released)
-
-        lock2.release()
-
-        self.assertTrue(lock2.released)
-
-    @defer.inlineCallbacks
-    def test_with_statement(self):
-        key = "test"
-        with (yield self.lock_manager.lock(key)) as lock:
-            self.assertFalse(lock.released)
-
-        self.assertTrue(lock.released)
-
-    @defer.inlineCallbacks
-    def test_two_with_statement(self):
-        key = "test"
-        with (yield self.lock_manager.lock(key)):
-            pass
-
-        with (yield self.lock_manager.lock(key)):
-            pass
diff --git a/tests/utils.py b/tests/utils.py
index 4da51291a4..ca2c33cf8e 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -335,7 +335,7 @@ class MemoryDataStore(object):
         ]
 
     def get_room_events_stream(self, user_id=None, from_key=None, to_key=None,
-                            room_id=None, limit=0, with_feedback=False):
+                            limit=0, with_feedback=False):
         return ([], from_key)  # TODO
 
     def get_joined_hosts_for_room(self, room_id):