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-rw-r--r--tests/push/test_presentable_names.py229
-rw-r--r--tests/push/test_push_rule_evaluator.py2
-rw-r--r--tests/replication/_base.py41
-rw-r--r--tests/rest/admin/test_user.py287
-rw-r--r--tests/rest/client/test_shadow_banned.py8
-rw-r--r--tests/rest/client/v2_alpha/test_account.py90
-rw-r--r--tests/rest/media/v1/test_media_storage.py25
-rw-r--r--tests/server.py9
-rw-r--r--tests/test_preview.py29
-rw-r--r--tests/unittest.py5
-rw-r--r--tests/utils.py1
11 files changed, 667 insertions, 59 deletions
diff --git a/tests/push/test_presentable_names.py b/tests/push/test_presentable_names.py
new file mode 100644
index 0000000000..aff563919d
--- /dev/null
+++ b/tests/push/test_presentable_names.py
@@ -0,0 +1,229 @@
+#  Copyright 2021 The Matrix.org Foundation C.I.C.
+#
+#  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 typing import Iterable, Optional, Tuple
+
+from synapse.api.constants import EventTypes, Membership
+from synapse.api.room_versions import RoomVersions
+from synapse.events import FrozenEvent
+from synapse.push.presentable_names import calculate_room_name
+from synapse.types import StateKey, StateMap
+
+from tests import unittest
+
+
+class MockDataStore:
+    """
+    A fake data store which stores a mapping of state key to event content.
+    (I.e. the state key is used as the event ID.)
+    """
+
+    def __init__(self, events: Iterable[Tuple[StateKey, dict]]):
+        """
+        Args:
+            events: A state map to event contents.
+        """
+        self._events = {}
+
+        for i, (event_id, content) in enumerate(events):
+            self._events[event_id] = FrozenEvent(
+                {
+                    "event_id": "$event_id",
+                    "type": event_id[0],
+                    "sender": "@user:test",
+                    "state_key": event_id[1],
+                    "room_id": "#room:test",
+                    "content": content,
+                    "origin_server_ts": i,
+                },
+                RoomVersions.V1,
+            )
+
+    async def get_event(
+        self, event_id: StateKey, allow_none: bool = False
+    ) -> Optional[FrozenEvent]:
+        assert allow_none, "Mock not configured for allow_none = False"
+
+        return self._events.get(event_id)
+
+    async def get_events(self, event_ids: Iterable[StateKey]):
+        # This is cheating since it just returns all events.
+        return self._events
+
+
+class PresentableNamesTestCase(unittest.HomeserverTestCase):
+    USER_ID = "@test:test"
+    OTHER_USER_ID = "@user:test"
+
+    def _calculate_room_name(
+        self,
+        events: StateMap[dict],
+        user_id: str = "",
+        fallback_to_members: bool = True,
+        fallback_to_single_member: bool = True,
+    ):
+        # This isn't 100% accurate, but works with MockDataStore.
+        room_state_ids = {k[0]: k[0] for k in events}
+
+        return self.get_success(
+            calculate_room_name(
+                MockDataStore(events),
+                room_state_ids,
+                user_id or self.USER_ID,
+                fallback_to_members,
+                fallback_to_single_member,
+            )
+        )
+
+    def test_name(self):
+        """A room name event should be used."""
+        events = [
+            ((EventTypes.Name, ""), {"name": "test-name"}),
+        ]
+        self.assertEqual("test-name", self._calculate_room_name(events))
+
+        # Check if the event content has garbage.
+        events = [((EventTypes.Name, ""), {"foo": 1})]
+        self.assertEqual("Empty Room", self._calculate_room_name(events))
+
+        events = [((EventTypes.Name, ""), {"name": 1})]
+        self.assertEqual(1, self._calculate_room_name(events))
+
+    def test_canonical_alias(self):
+        """An canonical alias should be used."""
+        events = [
+            ((EventTypes.CanonicalAlias, ""), {"alias": "#test-name:test"}),
+        ]
+        self.assertEqual("#test-name:test", self._calculate_room_name(events))
+
+        # Check if the event content has garbage.
+        events = [((EventTypes.CanonicalAlias, ""), {"foo": 1})]
+        self.assertEqual("Empty Room", self._calculate_room_name(events))
+
+        events = [((EventTypes.CanonicalAlias, ""), {"alias": "test-name"})]
+        self.assertEqual("Empty Room", self._calculate_room_name(events))
+
+    def test_invite(self):
+        """An invite has special behaviour."""
+        events = [
+            ((EventTypes.Member, self.USER_ID), {"membership": Membership.INVITE}),
+            ((EventTypes.Member, self.OTHER_USER_ID), {"displayname": "Other User"}),
+        ]
+        self.assertEqual("Invite from Other User", self._calculate_room_name(events))
+        self.assertIsNone(
+            self._calculate_room_name(events, fallback_to_single_member=False)
+        )
+        # Ensure this logic is skipped if we don't fallback to members.
+        self.assertIsNone(self._calculate_room_name(events, fallback_to_members=False))
+
+        # Check if the event content has garbage.
+        events = [
+            ((EventTypes.Member, self.USER_ID), {"membership": Membership.INVITE}),
+            ((EventTypes.Member, self.OTHER_USER_ID), {"foo": 1}),
+        ]
+        self.assertEqual("Invite from @user:test", self._calculate_room_name(events))
+
+        # No member event for sender.
+        events = [
+            ((EventTypes.Member, self.USER_ID), {"membership": Membership.INVITE}),
+        ]
+        self.assertEqual("Room Invite", self._calculate_room_name(events))
+
+    def test_no_members(self):
+        """Behaviour of an empty room."""
+        events = []
+        self.assertEqual("Empty Room", self._calculate_room_name(events))
+
+        # Note that events with invalid (or missing) membership are ignored.
+        events = [
+            ((EventTypes.Member, self.OTHER_USER_ID), {"foo": 1}),
+            ((EventTypes.Member, "@foo:test"), {"membership": "foo"}),
+        ]
+        self.assertEqual("Empty Room", self._calculate_room_name(events))
+
+    def test_no_other_members(self):
+        """Behaviour of a room with no other members in it."""
+        events = [
+            (
+                (EventTypes.Member, self.USER_ID),
+                {"membership": Membership.JOIN, "displayname": "Me"},
+            ),
+        ]
+        self.assertEqual("Me", self._calculate_room_name(events))
+
+        # Check if the event content has no displayname.
+        events = [
+            ((EventTypes.Member, self.USER_ID), {"membership": Membership.JOIN}),
+        ]
+        self.assertEqual("@test:test", self._calculate_room_name(events))
+
+        # 3pid invite, use the other user (who is set as the sender).
+        events = [
+            ((EventTypes.Member, self.OTHER_USER_ID), {"membership": Membership.JOIN}),
+        ]
+        self.assertEqual(
+            "nobody", self._calculate_room_name(events, user_id=self.OTHER_USER_ID)
+        )
+
+        events = [
+            ((EventTypes.Member, self.OTHER_USER_ID), {"membership": Membership.JOIN}),
+            ((EventTypes.ThirdPartyInvite, self.OTHER_USER_ID), {}),
+        ]
+        self.assertEqual(
+            "Inviting email address",
+            self._calculate_room_name(events, user_id=self.OTHER_USER_ID),
+        )
+
+    def test_one_other_member(self):
+        """Behaviour of a room with a single other member."""
+        events = [
+            ((EventTypes.Member, self.USER_ID), {"membership": Membership.JOIN}),
+            (
+                (EventTypes.Member, self.OTHER_USER_ID),
+                {"membership": Membership.JOIN, "displayname": "Other User"},
+            ),
+        ]
+        self.assertEqual("Other User", self._calculate_room_name(events))
+        self.assertIsNone(
+            self._calculate_room_name(events, fallback_to_single_member=False)
+        )
+
+        # Check if the event content has no displayname and is an invite.
+        events = [
+            ((EventTypes.Member, self.USER_ID), {"membership": Membership.JOIN}),
+            (
+                (EventTypes.Member, self.OTHER_USER_ID),
+                {"membership": Membership.INVITE},
+            ),
+        ]
+        self.assertEqual("@user:test", self._calculate_room_name(events))
+
+    def test_other_members(self):
+        """Behaviour of a room with multiple other members."""
+        # Two other members.
+        events = [
+            ((EventTypes.Member, self.USER_ID), {"membership": Membership.JOIN}),
+            (
+                (EventTypes.Member, self.OTHER_USER_ID),
+                {"membership": Membership.JOIN, "displayname": "Other User"},
+            ),
+            ((EventTypes.Member, "@foo:test"), {"membership": Membership.JOIN}),
+        ]
+        self.assertEqual("Other User and @foo:test", self._calculate_room_name(events))
+
+        # Three or more other members.
+        events.append(
+            ((EventTypes.Member, "@fourth:test"), {"membership": Membership.INVITE})
+        )
+        self.assertEqual("Other User and 2 others", self._calculate_room_name(events))
diff --git a/tests/push/test_push_rule_evaluator.py b/tests/push/test_push_rule_evaluator.py
index 1f4b5ca2ac..4a841f5bb8 100644
--- a/tests/push/test_push_rule_evaluator.py
+++ b/tests/push/test_push_rule_evaluator.py
@@ -29,7 +29,7 @@ class PushRuleEvaluatorTestCase(unittest.TestCase):
                 "type": "m.room.history_visibility",
                 "sender": "@user:test",
                 "state_key": "",
-                "room_id": "@room:test",
+                "room_id": "#room:test",
                 "content": content,
             },
             RoomVersions.V1,
diff --git a/tests/replication/_base.py b/tests/replication/_base.py
index 3379189785..d5dce1f83f 100644
--- a/tests/replication/_base.py
+++ b/tests/replication/_base.py
@@ -212,6 +212,9 @@ class BaseMultiWorkerStreamTestCase(unittest.HomeserverTestCase):
         # Fake in memory Redis server that servers can connect to.
         self._redis_server = FakeRedisPubSubServer()
 
+        # We may have an attempt to connect to redis for the external cache already.
+        self.connect_any_redis_attempts()
+
         store = self.hs.get_datastore()
         self.database_pool = store.db_pool
 
@@ -401,25 +404,23 @@ class BaseMultiWorkerStreamTestCase(unittest.HomeserverTestCase):
         fake one.
         """
         clients = self.reactor.tcpClients
-        self.assertEqual(len(clients), 1)
-        (host, port, client_factory, _timeout, _bindAddress) = clients.pop(0)
-        self.assertEqual(host, "localhost")
-        self.assertEqual(port, 6379)
+        while clients:
+            (host, port, client_factory, _timeout, _bindAddress) = clients.pop(0)
+            self.assertEqual(host, "localhost")
+            self.assertEqual(port, 6379)
 
-        client_protocol = client_factory.buildProtocol(None)
-        server_protocol = self._redis_server.buildProtocol(None)
+            client_protocol = client_factory.buildProtocol(None)
+            server_protocol = self._redis_server.buildProtocol(None)
 
-        client_to_server_transport = FakeTransport(
-            server_protocol, self.reactor, client_protocol
-        )
-        client_protocol.makeConnection(client_to_server_transport)
-
-        server_to_client_transport = FakeTransport(
-            client_protocol, self.reactor, server_protocol
-        )
-        server_protocol.makeConnection(server_to_client_transport)
+            client_to_server_transport = FakeTransport(
+                server_protocol, self.reactor, client_protocol
+            )
+            client_protocol.makeConnection(client_to_server_transport)
 
-        return client_to_server_transport, server_to_client_transport
+            server_to_client_transport = FakeTransport(
+                client_protocol, self.reactor, server_protocol
+            )
+            server_protocol.makeConnection(server_to_client_transport)
 
 
 class TestReplicationDataHandler(GenericWorkerReplicationHandler):
@@ -624,6 +625,12 @@ class FakeRedisPubSubProtocol(Protocol):
             (channel,) = args
             self._server.add_subscriber(self)
             self.send(["subscribe", channel, 1])
+
+        # Since we use SET/GET to cache things we can safely no-op them.
+        elif command == b"SET":
+            self.send("OK")
+        elif command == b"GET":
+            self.send(None)
         else:
             raise Exception("Unknown command")
 
@@ -645,6 +652,8 @@ class FakeRedisPubSubProtocol(Protocol):
             # We assume bytes are just unicode strings.
             obj = obj.decode("utf-8")
 
+        if obj is None:
+            return "$-1\r\n"
         if isinstance(obj, str):
             return "${len}\r\n{str}\r\n".format(len=len(obj), str=obj)
         if isinstance(obj, int):
diff --git a/tests/rest/admin/test_user.py b/tests/rest/admin/test_user.py
index 04599c2fcf..ee05ee60bc 100644
--- a/tests/rest/admin/test_user.py
+++ b/tests/rest/admin/test_user.py
@@ -28,6 +28,7 @@ from synapse.api.errors import Codes, HttpResponseException, ResourceLimitError
 from synapse.api.room_versions import RoomVersions
 from synapse.rest.client.v1 import login, logout, profile, room
 from synapse.rest.client.v2_alpha import devices, sync
+from synapse.types import JsonDict
 
 from tests import unittest
 from tests.test_utils import make_awaitable
@@ -468,13 +469,6 @@ class UsersListTestCase(unittest.HomeserverTestCase):
         self.admin_user = self.register_user("admin", "pass", admin=True)
         self.admin_user_tok = self.login("admin", "pass")
 
-        self.user1 = self.register_user(
-            "user1", "pass1", admin=False, displayname="Name 1"
-        )
-        self.user2 = self.register_user(
-            "user2", "pass2", admin=False, displayname="Name 2"
-        )
-
     def test_no_auth(self):
         """
         Try to list users without authentication.
@@ -488,6 +482,7 @@ class UsersListTestCase(unittest.HomeserverTestCase):
         """
         If the user is not a server admin, an error is returned.
         """
+        self._create_users(1)
         other_user_token = self.login("user1", "pass1")
 
         channel = self.make_request("GET", self.url, access_token=other_user_token)
@@ -499,6 +494,8 @@ class UsersListTestCase(unittest.HomeserverTestCase):
         """
         List all users, including deactivated users.
         """
+        self._create_users(2)
+
         channel = self.make_request(
             "GET",
             self.url + "?deactivated=true",
@@ -511,14 +508,7 @@ class UsersListTestCase(unittest.HomeserverTestCase):
         self.assertEqual(3, channel.json_body["total"])
 
         # Check that all fields are available
-        for u in channel.json_body["users"]:
-            self.assertIn("name", u)
-            self.assertIn("is_guest", u)
-            self.assertIn("admin", u)
-            self.assertIn("user_type", u)
-            self.assertIn("deactivated", u)
-            self.assertIn("displayname", u)
-            self.assertIn("avatar_url", u)
+        self._check_fields(channel.json_body["users"])
 
     def test_search_term(self):
         """Test that searching for a users works correctly"""
@@ -549,6 +539,7 @@ class UsersListTestCase(unittest.HomeserverTestCase):
 
             # Check that users were returned
             self.assertTrue("users" in channel.json_body)
+            self._check_fields(channel.json_body["users"])
             users = channel.json_body["users"]
 
             # Check that the expected number of users were returned
@@ -561,25 +552,30 @@ class UsersListTestCase(unittest.HomeserverTestCase):
                 u = users[0]
                 self.assertEqual(expected_user_id, u["name"])
 
+        self._create_users(2)
+
+        user1 = "@user1:test"
+        user2 = "@user2:test"
+
         # Perform search tests
-        _search_test(self.user1, "er1")
-        _search_test(self.user1, "me 1")
+        _search_test(user1, "er1")
+        _search_test(user1, "me 1")
 
-        _search_test(self.user2, "er2")
-        _search_test(self.user2, "me 2")
+        _search_test(user2, "er2")
+        _search_test(user2, "me 2")
 
-        _search_test(self.user1, "er1", "user_id")
-        _search_test(self.user2, "er2", "user_id")
+        _search_test(user1, "er1", "user_id")
+        _search_test(user2, "er2", "user_id")
 
         # Test case insensitive
-        _search_test(self.user1, "ER1")
-        _search_test(self.user1, "NAME 1")
+        _search_test(user1, "ER1")
+        _search_test(user1, "NAME 1")
 
-        _search_test(self.user2, "ER2")
-        _search_test(self.user2, "NAME 2")
+        _search_test(user2, "ER2")
+        _search_test(user2, "NAME 2")
 
-        _search_test(self.user1, "ER1", "user_id")
-        _search_test(self.user2, "ER2", "user_id")
+        _search_test(user1, "ER1", "user_id")
+        _search_test(user2, "ER2", "user_id")
 
         _search_test(None, "foo")
         _search_test(None, "bar")
@@ -587,6 +583,179 @@ class UsersListTestCase(unittest.HomeserverTestCase):
         _search_test(None, "foo", "user_id")
         _search_test(None, "bar", "user_id")
 
+    def test_invalid_parameter(self):
+        """
+        If parameters are invalid, an error is returned.
+        """
+
+        # negative limit
+        channel = self.make_request(
+            "GET", self.url + "?limit=-5", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
+
+        # negative from
+        channel = self.make_request(
+            "GET", self.url + "?from=-5", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(Codes.INVALID_PARAM, channel.json_body["errcode"])
+
+        # invalid guests
+        channel = self.make_request(
+            "GET", self.url + "?guests=not_bool", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(Codes.UNKNOWN, channel.json_body["errcode"])
+
+        # invalid deactivated
+        channel = self.make_request(
+            "GET", self.url + "?deactivated=not_bool", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(400, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(Codes.UNKNOWN, channel.json_body["errcode"])
+
+    def test_limit(self):
+        """
+        Testing list of users with limit
+        """
+
+        number_users = 20
+        # Create one less user (since there's already an admin user).
+        self._create_users(number_users - 1)
+
+        channel = self.make_request(
+            "GET", self.url + "?limit=5", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(channel.json_body["total"], number_users)
+        self.assertEqual(len(channel.json_body["users"]), 5)
+        self.assertEqual(channel.json_body["next_token"], "5")
+        self._check_fields(channel.json_body["users"])
+
+    def test_from(self):
+        """
+        Testing list of users with a defined starting point (from)
+        """
+
+        number_users = 20
+        # Create one less user (since there's already an admin user).
+        self._create_users(number_users - 1)
+
+        channel = self.make_request(
+            "GET", self.url + "?from=5", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(channel.json_body["total"], number_users)
+        self.assertEqual(len(channel.json_body["users"]), 15)
+        self.assertNotIn("next_token", channel.json_body)
+        self._check_fields(channel.json_body["users"])
+
+    def test_limit_and_from(self):
+        """
+        Testing list of users with a defined starting point and limit
+        """
+
+        number_users = 20
+        # Create one less user (since there's already an admin user).
+        self._create_users(number_users - 1)
+
+        channel = self.make_request(
+            "GET", self.url + "?from=5&limit=10", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(channel.json_body["total"], number_users)
+        self.assertEqual(channel.json_body["next_token"], "15")
+        self.assertEqual(len(channel.json_body["users"]), 10)
+        self._check_fields(channel.json_body["users"])
+
+    def test_next_token(self):
+        """
+        Testing that `next_token` appears at the right place
+        """
+
+        number_users = 20
+        # Create one less user (since there's already an admin user).
+        self._create_users(number_users - 1)
+
+        #  `next_token` does not appear
+        # Number of results is the number of entries
+        channel = self.make_request(
+            "GET", self.url + "?limit=20", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(channel.json_body["total"], number_users)
+        self.assertEqual(len(channel.json_body["users"]), number_users)
+        self.assertNotIn("next_token", channel.json_body)
+
+        #  `next_token` does not appear
+        # Number of max results is larger than the number of entries
+        channel = self.make_request(
+            "GET", self.url + "?limit=21", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(channel.json_body["total"], number_users)
+        self.assertEqual(len(channel.json_body["users"]), number_users)
+        self.assertNotIn("next_token", channel.json_body)
+
+        #  `next_token` does appear
+        # Number of max results is smaller than the number of entries
+        channel = self.make_request(
+            "GET", self.url + "?limit=19", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(channel.json_body["total"], number_users)
+        self.assertEqual(len(channel.json_body["users"]), 19)
+        self.assertEqual(channel.json_body["next_token"], "19")
+
+        # Check
+        # Set `from` to value of `next_token` for request remaining entries
+        #  `next_token` does not appear
+        channel = self.make_request(
+            "GET", self.url + "?from=19", access_token=self.admin_user_tok,
+        )
+
+        self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(channel.json_body["total"], number_users)
+        self.assertEqual(len(channel.json_body["users"]), 1)
+        self.assertNotIn("next_token", channel.json_body)
+
+    def _check_fields(self, content: JsonDict):
+        """Checks that the expected user attributes are present in content
+        Args:
+            content: List that is checked for content
+        """
+        for u in content:
+            self.assertIn("name", u)
+            self.assertIn("is_guest", u)
+            self.assertIn("admin", u)
+            self.assertIn("user_type", u)
+            self.assertIn("deactivated", u)
+            self.assertIn("displayname", u)
+            self.assertIn("avatar_url", u)
+
+    def _create_users(self, number_users: int):
+        """
+        Create a number of users
+        Args:
+            number_users: Number of users to be created
+        """
+        for i in range(1, number_users + 1):
+            self.register_user(
+                "user%d" % i, "pass%d" % i, admin=False, displayname="Name %d" % i,
+            )
+
 
 class DeactivateAccountTestCase(unittest.HomeserverTestCase):
 
@@ -2211,3 +2380,67 @@ class WhoisRestTestCase(unittest.HomeserverTestCase):
         self.assertEqual(200, channel.code, msg=channel.json_body)
         self.assertEqual(self.other_user, channel.json_body["user_id"])
         self.assertIn("devices", channel.json_body)
+
+
+class ShadowBanRestTestCase(unittest.HomeserverTestCase):
+
+    servlets = [
+        synapse.rest.admin.register_servlets,
+        login.register_servlets,
+    ]
+
+    def prepare(self, reactor, clock, hs):
+        self.store = hs.get_datastore()
+
+        self.admin_user = self.register_user("admin", "pass", admin=True)
+        self.admin_user_tok = self.login("admin", "pass")
+
+        self.other_user = self.register_user("user", "pass")
+
+        self.url = "/_synapse/admin/v1/users/%s/shadow_ban" % urllib.parse.quote(
+            self.other_user
+        )
+
+    def test_no_auth(self):
+        """
+        Try to get information of an user without authentication.
+        """
+        channel = self.make_request("POST", self.url)
+        self.assertEqual(401, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(Codes.MISSING_TOKEN, channel.json_body["errcode"])
+
+    def test_requester_is_not_admin(self):
+        """
+        If the user is not a server admin, an error is returned.
+        """
+        other_user_token = self.login("user", "pass")
+
+        channel = self.make_request("POST", self.url, access_token=other_user_token)
+        self.assertEqual(403, int(channel.result["code"]), msg=channel.result["body"])
+        self.assertEqual(Codes.FORBIDDEN, channel.json_body["errcode"])
+
+    def test_user_is_not_local(self):
+        """
+        Tests that shadow-banning for a user that is not a local returns a 400
+        """
+        url = "/_synapse/admin/v1/whois/@unknown_person:unknown_domain"
+
+        channel = self.make_request("POST", url, access_token=self.admin_user_tok)
+        self.assertEqual(400, channel.code, msg=channel.json_body)
+
+    def test_success(self):
+        """
+        Shadow-banning should succeed for an admin.
+        """
+        # The user starts off as not shadow-banned.
+        other_user_token = self.login("user", "pass")
+        result = self.get_success(self.store.get_user_by_access_token(other_user_token))
+        self.assertFalse(result.shadow_banned)
+
+        channel = self.make_request("POST", self.url, access_token=self.admin_user_tok)
+        self.assertEqual(200, channel.code, msg=channel.json_body)
+        self.assertEqual({}, channel.json_body)
+
+        # Ensure the user is shadow-banned (and the cache was cleared).
+        result = self.get_success(self.store.get_user_by_access_token(other_user_token))
+        self.assertTrue(result.shadow_banned)
diff --git a/tests/rest/client/test_shadow_banned.py b/tests/rest/client/test_shadow_banned.py
index e689c3fbea..0ebdf1415b 100644
--- a/tests/rest/client/test_shadow_banned.py
+++ b/tests/rest/client/test_shadow_banned.py
@@ -18,6 +18,7 @@ import synapse.rest.admin
 from synapse.api.constants import EventTypes
 from synapse.rest.client.v1 import directory, login, profile, room
 from synapse.rest.client.v2_alpha import room_upgrade_rest_servlet
+from synapse.types import UserID
 
 from tests import unittest
 
@@ -31,12 +32,7 @@ class _ShadowBannedBase(unittest.HomeserverTestCase):
         self.store = self.hs.get_datastore()
 
         self.get_success(
-            self.store.db_pool.simple_update(
-                table="users",
-                keyvalues={"name": self.banned_user_id},
-                updatevalues={"shadow_banned": True},
-                desc="shadow_ban",
-            )
+            self.store.set_shadow_banned(UserID.from_string(self.banned_user_id), True)
         )
 
         self.other_user_id = self.register_user("otheruser", "pass")
diff --git a/tests/rest/client/v2_alpha/test_account.py b/tests/rest/client/v2_alpha/test_account.py
index cb87b80e33..177dc476da 100644
--- a/tests/rest/client/v2_alpha/test_account.py
+++ b/tests/rest/client/v2_alpha/test_account.py
@@ -24,7 +24,7 @@ import pkg_resources
 
 import synapse.rest.admin
 from synapse.api.constants import LoginType, Membership
-from synapse.api.errors import Codes
+from synapse.api.errors import Codes, HttpResponseException
 from synapse.rest.client.v1 import login, room
 from synapse.rest.client.v2_alpha import account, register
 from synapse.rest.synapse.client.password_reset import PasswordResetSubmitTokenResource
@@ -112,6 +112,56 @@ class PasswordResetTestCase(unittest.HomeserverTestCase):
         # Assert we can't log in with the old password
         self.attempt_wrong_password_login("kermit", old_password)
 
+    @override_config({"rc_3pid_validation": {"burst_count": 3}})
+    def test_ratelimit_by_email(self):
+        """Test that we ratelimit /requestToken for the same email.
+        """
+        old_password = "monkey"
+        new_password = "kangeroo"
+
+        user_id = self.register_user("kermit", old_password)
+        self.login("kermit", old_password)
+
+        email = "test1@example.com"
+
+        # Add a threepid
+        self.get_success(
+            self.store.user_add_threepid(
+                user_id=user_id,
+                medium="email",
+                address=email,
+                validated_at=0,
+                added_at=0,
+            )
+        )
+
+        def reset(ip):
+            client_secret = "foobar"
+            session_id = self._request_token(email, client_secret, ip)
+
+            self.assertEquals(len(self.email_attempts), 1)
+            link = self._get_link_from_email()
+
+            self._validate_token(link)
+
+            self._reset_password(new_password, session_id, client_secret)
+
+            self.email_attempts.clear()
+
+        # We expect to be able to make three requests before getting rate
+        # limited.
+        #
+        # We change IPs to ensure that we're not being ratelimited due to the
+        # same IP
+        reset("127.0.0.1")
+        reset("127.0.0.2")
+        reset("127.0.0.3")
+
+        with self.assertRaises(HttpResponseException) as cm:
+            reset("127.0.0.4")
+
+        self.assertEqual(cm.exception.code, 429)
+
     def test_basic_password_reset_canonicalise_email(self):
         """Test basic password reset flow
         Request password reset with different spelling
@@ -239,13 +289,18 @@ class PasswordResetTestCase(unittest.HomeserverTestCase):
 
         self.assertIsNotNone(session_id)
 
-    def _request_token(self, email, client_secret):
+    def _request_token(self, email, client_secret, ip="127.0.0.1"):
         channel = self.make_request(
             "POST",
             b"account/password/email/requestToken",
             {"client_secret": client_secret, "email": email, "send_attempt": 1},
+            client_ip=ip,
         )
-        self.assertEquals(200, channel.code, channel.result)
+
+        if channel.code != 200:
+            raise HttpResponseException(
+                channel.code, channel.result["reason"], channel.result["body"],
+            )
 
         return channel.json_body["sid"]
 
@@ -509,6 +564,21 @@ class ThreepidEmailRestTestCase(unittest.HomeserverTestCase):
     def test_address_trim(self):
         self.get_success(self._add_email(" foo@test.bar ", "foo@test.bar"))
 
+    @override_config({"rc_3pid_validation": {"burst_count": 3}})
+    def test_ratelimit_by_ip(self):
+        """Tests that adding emails is ratelimited by IP
+        """
+
+        # We expect to be able to set three emails before getting ratelimited.
+        self.get_success(self._add_email("foo1@test.bar", "foo1@test.bar"))
+        self.get_success(self._add_email("foo2@test.bar", "foo2@test.bar"))
+        self.get_success(self._add_email("foo3@test.bar", "foo3@test.bar"))
+
+        with self.assertRaises(HttpResponseException) as cm:
+            self.get_success(self._add_email("foo4@test.bar", "foo4@test.bar"))
+
+        self.assertEqual(cm.exception.code, 429)
+
     def test_add_email_if_disabled(self):
         """Test adding email to profile when doing so is disallowed
         """
@@ -777,7 +847,11 @@ class ThreepidEmailRestTestCase(unittest.HomeserverTestCase):
             body["next_link"] = next_link
 
         channel = self.make_request("POST", b"account/3pid/email/requestToken", body,)
-        self.assertEquals(expect_code, channel.code, channel.result)
+
+        if channel.code != expect_code:
+            raise HttpResponseException(
+                channel.code, channel.result["reason"], channel.result["body"],
+            )
 
         return channel.json_body.get("sid")
 
@@ -823,10 +897,12 @@ class ThreepidEmailRestTestCase(unittest.HomeserverTestCase):
     def _add_email(self, request_email, expected_email):
         """Test adding an email to profile
         """
+        previous_email_attempts = len(self.email_attempts)
+
         client_secret = "foobar"
         session_id = self._request_token(request_email, client_secret)
 
-        self.assertEquals(len(self.email_attempts), 1)
+        self.assertEquals(len(self.email_attempts) - previous_email_attempts, 1)
         link = self._get_link_from_email()
 
         self._validate_token(link)
@@ -855,4 +931,6 @@ class ThreepidEmailRestTestCase(unittest.HomeserverTestCase):
 
         self.assertEqual(200, int(channel.result["code"]), msg=channel.result["body"])
         self.assertEqual("email", channel.json_body["threepids"][0]["medium"])
-        self.assertEqual(expected_email, channel.json_body["threepids"][0]["address"])
+
+        threepids = {threepid["address"] for threepid in channel.json_body["threepids"]}
+        self.assertIn(expected_email, threepids)
diff --git a/tests/rest/media/v1/test_media_storage.py b/tests/rest/media/v1/test_media_storage.py
index ae2b32b131..a6c6985173 100644
--- a/tests/rest/media/v1/test_media_storage.py
+++ b/tests/rest/media/v1/test_media_storage.py
@@ -202,7 +202,6 @@ class MediaRepoTests(unittest.HomeserverTestCase):
 
         config = self.default_config()
         config["media_store_path"] = self.media_store_path
-        config["thumbnail_requirements"] = {}
         config["max_image_pixels"] = 2000000
 
         provider_config = {
@@ -313,15 +312,39 @@ class MediaRepoTests(unittest.HomeserverTestCase):
         self.assertEqual(headers.getRawHeaders(b"Content-Disposition"), None)
 
     def test_thumbnail_crop(self):
+        """Test that a cropped remote thumbnail is available."""
         self._test_thumbnail(
             "crop", self.test_image.expected_cropped, self.test_image.expected_found
         )
 
     def test_thumbnail_scale(self):
+        """Test that a scaled remote thumbnail is available."""
         self._test_thumbnail(
             "scale", self.test_image.expected_scaled, self.test_image.expected_found
         )
 
+    def test_invalid_type(self):
+        """An invalid thumbnail type is never available."""
+        self._test_thumbnail("invalid", None, False)
+
+    @unittest.override_config(
+        {"thumbnail_sizes": [{"width": 32, "height": 32, "method": "scale"}]}
+    )
+    def test_no_thumbnail_crop(self):
+        """
+        Override the config to generate only scaled thumbnails, but request a cropped one.
+        """
+        self._test_thumbnail("crop", None, False)
+
+    @unittest.override_config(
+        {"thumbnail_sizes": [{"width": 32, "height": 32, "method": "crop"}]}
+    )
+    def test_no_thumbnail_scale(self):
+        """
+        Override the config to generate only cropped thumbnails, but request a scaled one.
+        """
+        self._test_thumbnail("scale", None, False)
+
     def _test_thumbnail(self, method, expected_body, expected_found):
         params = "?width=32&height=32&method=" + method
         channel = make_request(
diff --git a/tests/server.py b/tests/server.py
index 5a85d5fe7f..6419c445ec 100644
--- a/tests/server.py
+++ b/tests/server.py
@@ -47,6 +47,7 @@ class FakeChannel:
     site = attr.ib(type=Site)
     _reactor = attr.ib()
     result = attr.ib(type=dict, default=attr.Factory(dict))
+    _ip = attr.ib(type=str, default="127.0.0.1")
     _producer = None
 
     @property
@@ -120,7 +121,7 @@ class FakeChannel:
     def getPeer(self):
         # We give an address so that getClientIP returns a non null entry,
         # causing us to record the MAU
-        return address.IPv4Address("TCP", "127.0.0.1", 3423)
+        return address.IPv4Address("TCP", self._ip, 3423)
 
     def getHost(self):
         return None
@@ -196,6 +197,7 @@ def make_request(
     custom_headers: Optional[
         Iterable[Tuple[Union[bytes, str], Union[bytes, str]]]
     ] = None,
+    client_ip: str = "127.0.0.1",
 ) -> FakeChannel:
     """
     Make a web request using the given method, path and content, and render it
@@ -223,6 +225,9 @@ def make_request(
              will pump the reactor until the the renderer tells the channel the request
              is finished.
 
+        client_ip: The IP to use as the requesting IP. Useful for testing
+            ratelimiting.
+
     Returns:
         channel
     """
@@ -250,7 +255,7 @@ def make_request(
     if isinstance(content, str):
         content = content.encode("utf8")
 
-    channel = FakeChannel(site, reactor)
+    channel = FakeChannel(site, reactor, ip=client_ip)
 
     req = request(channel)
     req.content = BytesIO(content)
diff --git a/tests/test_preview.py b/tests/test_preview.py
index c19facc1cb..0c6cbbd921 100644
--- a/tests/test_preview.py
+++ b/tests/test_preview.py
@@ -261,3 +261,32 @@ class PreviewUrlTestCase(unittest.TestCase):
         html = ""
         og = decode_and_calc_og(html, "http://example.com/test.html")
         self.assertEqual(og, {})
+
+    def test_invalid_encoding(self):
+        """An invalid character encoding should be ignored and treated as UTF-8, if possible."""
+        html = """
+        <html>
+        <head><title>Foo</title></head>
+        <body>
+        Some text.
+        </body>
+        </html>
+        """
+        og = decode_and_calc_og(
+            html, "http://example.com/test.html", "invalid-encoding"
+        )
+        self.assertEqual(og, {"og:title": "Foo", "og:description": "Some text."})
+
+    def test_invalid_encoding2(self):
+        """A body which doesn't match the sent character encoding."""
+        # Note that this contains an invalid UTF-8 sequence in the title.
+        html = b"""
+        <html>
+        <head><title>\xff\xff Foo</title></head>
+        <body>
+        Some text.
+        </body>
+        </html>
+        """
+        og = decode_and_calc_og(html, "http://example.com/test.html")
+        self.assertEqual(og, {"og:title": "ÿÿ Foo", "og:description": "Some text."})
diff --git a/tests/unittest.py b/tests/unittest.py
index bbd295687c..767d5d6077 100644
--- a/tests/unittest.py
+++ b/tests/unittest.py
@@ -386,6 +386,7 @@ class HomeserverTestCase(TestCase):
         custom_headers: Optional[
             Iterable[Tuple[Union[bytes, str], Union[bytes, str]]]
         ] = None,
+        client_ip: str = "127.0.0.1",
     ) -> FakeChannel:
         """
         Create a SynapseRequest at the path using the method and containing the
@@ -410,6 +411,9 @@ class HomeserverTestCase(TestCase):
 
             custom_headers: (name, value) pairs to add as request headers
 
+            client_ip: The IP to use as the requesting IP. Useful for testing
+                ratelimiting.
+
         Returns:
             The FakeChannel object which stores the result of the request.
         """
@@ -426,6 +430,7 @@ class HomeserverTestCase(TestCase):
             content_is_form,
             await_result,
             custom_headers,
+            client_ip,
         )
 
     def setup_test_homeserver(self, *args, **kwargs):
diff --git a/tests/utils.py b/tests/utils.py
index 022223cf24..68033d7535 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -157,6 +157,7 @@ def default_config(name, parse=False):
             "local": {"per_second": 10000, "burst_count": 10000},
             "remote": {"per_second": 10000, "burst_count": 10000},
         },
+        "rc_3pid_validation": {"per_second": 10000, "burst_count": 10000},
         "saml2_enabled": False,
         "default_identity_server": None,
         "key_refresh_interval": 24 * 60 * 60 * 1000,