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-rw-r--r--tests/storage/test_profile.py9
-rw-r--r--tests/storage/test_roommember.py48
-rw-r--r--tests/storage/test_stream.py207
3 files changed, 261 insertions, 3 deletions
diff --git a/tests/storage/test_profile.py b/tests/storage/test_profile.py
index a1ba99ff14..d37736edf8 100644
--- a/tests/storage/test_profile.py
+++ b/tests/storage/test_profile.py
@@ -11,19 +11,22 @@
 # 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.test.proto_helpers import MemoryReactor
 
+from synapse.server import HomeServer
 from synapse.types import UserID
+from synapse.util import Clock
 
 from tests import unittest
 
 
 class ProfileStoreTestCase(unittest.HomeserverTestCase):
-    def prepare(self, reactor, clock, hs):
+    def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
         self.store = hs.get_datastore()
 
         self.u_frank = UserID.from_string("@frank:test")
 
-    def test_displayname(self):
+    def test_displayname(self) -> None:
         self.get_success(self.store.create_profile(self.u_frank.localpart))
 
         self.get_success(
@@ -48,7 +51,7 @@ class ProfileStoreTestCase(unittest.HomeserverTestCase):
             self.get_success(self.store.get_profile_displayname(self.u_frank.localpart))
         )
 
-    def test_avatar_url(self):
+    def test_avatar_url(self) -> None:
         self.get_success(self.store.create_profile(self.u_frank.localpart))
 
         self.get_success(
diff --git a/tests/storage/test_roommember.py b/tests/storage/test_roommember.py
index 2873e22ccf..fccab733c0 100644
--- a/tests/storage/test_roommember.py
+++ b/tests/storage/test_roommember.py
@@ -161,6 +161,54 @@ class RoomMemberStoreTestCase(unittest.HomeserverTestCase):
         )
         self.assertEqual(users.keys(), {self.u_alice, self.u_bob})
 
+    def test__null_byte_in_display_name_properly_handled(self):
+        room = self.helper.create_room_as(self.u_alice, tok=self.t_alice)
+
+        res = self.get_success(
+            self.store.db_pool.simple_select_list(
+                "room_memberships",
+                {"user_id": "@alice:test"},
+                ["display_name", "event_id"],
+            )
+        )
+        # Check that we only got one result back
+        self.assertEqual(len(res), 1)
+
+        # Check that alice's display name is "alice"
+        self.assertEqual(res[0]["display_name"], "alice")
+
+        # Grab the event_id to use later
+        event_id = res[0]["event_id"]
+
+        # Create a profile with the offending null byte in the display name
+        new_profile = {"displayname": "ali\u0000ce"}
+
+        # Ensure that the change goes smoothly and does not fail due to the null byte
+        self.helper.change_membership(
+            room,
+            self.u_alice,
+            self.u_alice,
+            "join",
+            extra_data=new_profile,
+            tok=self.t_alice,
+        )
+
+        res2 = self.get_success(
+            self.store.db_pool.simple_select_list(
+                "room_memberships",
+                {"user_id": "@alice:test"},
+                ["display_name", "event_id"],
+            )
+        )
+        # Check that we only have two results
+        self.assertEqual(len(res2), 2)
+
+        # Filter out the previous event using the event_id we grabbed above
+        row = [row for row in res2 if row["event_id"] != event_id]
+
+        # Check that alice's display name is now None
+        self.assertEqual(row[0]["display_name"], None)
+
 
 class CurrentStateMembershipUpdateTestCase(unittest.HomeserverTestCase):
     def prepare(self, reactor, clock, homeserver):
diff --git a/tests/storage/test_stream.py b/tests/storage/test_stream.py
new file mode 100644
index 0000000000..ce782c7e1d
--- /dev/null
+++ b/tests/storage/test_stream.py
@@ -0,0 +1,207 @@
+#  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 List
+
+from synapse.api.constants import EventTypes, RelationTypes
+from synapse.api.filtering import Filter
+from synapse.events import EventBase
+from synapse.rest import admin
+from synapse.rest.client import login, room
+from synapse.types import JsonDict
+
+from tests.unittest import HomeserverTestCase
+
+
+class PaginationTestCase(HomeserverTestCase):
+    """
+    Test the pre-filtering done in the pagination code.
+
+    This is similar to some of the tests in tests.rest.client.test_rooms but here
+    we ensure that the filtering done in the database is applied successfully.
+    """
+
+    servlets = [
+        admin.register_servlets_for_client_rest_resource,
+        room.register_servlets,
+        login.register_servlets,
+    ]
+
+    def default_config(self):
+        config = super().default_config()
+        config["experimental_features"] = {"msc3440_enabled": True}
+        return config
+
+    def prepare(self, reactor, clock, homeserver):
+        self.user_id = self.register_user("test", "test")
+        self.tok = self.login("test", "test")
+        self.room_id = self.helper.create_room_as(self.user_id, tok=self.tok)
+
+        self.second_user_id = self.register_user("second", "test")
+        self.second_tok = self.login("second", "test")
+        self.helper.join(
+            room=self.room_id, user=self.second_user_id, tok=self.second_tok
+        )
+
+        self.third_user_id = self.register_user("third", "test")
+        self.third_tok = self.login("third", "test")
+        self.helper.join(room=self.room_id, user=self.third_user_id, tok=self.third_tok)
+
+        # An initial event with a relation from second user.
+        res = self.helper.send_event(
+            room_id=self.room_id,
+            type=EventTypes.Message,
+            content={"msgtype": "m.text", "body": "Message 1"},
+            tok=self.tok,
+        )
+        self.event_id_1 = res["event_id"]
+        self.helper.send_event(
+            room_id=self.room_id,
+            type="m.reaction",
+            content={
+                "m.relates_to": {
+                    "rel_type": RelationTypes.ANNOTATION,
+                    "event_id": self.event_id_1,
+                    "key": "👍",
+                }
+            },
+            tok=self.second_tok,
+        )
+
+        # Another event with a relation from third user.
+        res = self.helper.send_event(
+            room_id=self.room_id,
+            type=EventTypes.Message,
+            content={"msgtype": "m.text", "body": "Message 2"},
+            tok=self.tok,
+        )
+        self.event_id_2 = res["event_id"]
+        self.helper.send_event(
+            room_id=self.room_id,
+            type="m.reaction",
+            content={
+                "m.relates_to": {
+                    "rel_type": RelationTypes.REFERENCE,
+                    "event_id": self.event_id_2,
+                }
+            },
+            tok=self.third_tok,
+        )
+
+        # An event with no relations.
+        self.helper.send_event(
+            room_id=self.room_id,
+            type=EventTypes.Message,
+            content={"msgtype": "m.text", "body": "No relations"},
+            tok=self.tok,
+        )
+
+    def _filter_messages(self, filter: JsonDict) -> List[EventBase]:
+        """Make a request to /messages with a filter, returns the chunk of events."""
+
+        from_token = self.get_success(
+            self.hs.get_event_sources().get_current_token_for_pagination()
+        )
+
+        events, next_key = self.get_success(
+            self.hs.get_datastore().paginate_room_events(
+                room_id=self.room_id,
+                from_key=from_token.room_key,
+                to_key=None,
+                direction="b",
+                limit=10,
+                event_filter=Filter(self.hs, filter),
+            )
+        )
+
+        return events
+
+    def test_filter_relation_senders(self):
+        # Messages which second user reacted to.
+        filter = {"io.element.relation_senders": [self.second_user_id]}
+        chunk = self._filter_messages(filter)
+        self.assertEqual(len(chunk), 1, chunk)
+        self.assertEqual(chunk[0].event_id, self.event_id_1)
+
+        # Messages which third user reacted to.
+        filter = {"io.element.relation_senders": [self.third_user_id]}
+        chunk = self._filter_messages(filter)
+        self.assertEqual(len(chunk), 1, chunk)
+        self.assertEqual(chunk[0].event_id, self.event_id_2)
+
+        # Messages which either user reacted to.
+        filter = {
+            "io.element.relation_senders": [self.second_user_id, self.third_user_id]
+        }
+        chunk = self._filter_messages(filter)
+        self.assertEqual(len(chunk), 2, chunk)
+        self.assertCountEqual(
+            [c.event_id for c in chunk], [self.event_id_1, self.event_id_2]
+        )
+
+    def test_filter_relation_type(self):
+        # Messages which have annotations.
+        filter = {"io.element.relation_types": [RelationTypes.ANNOTATION]}
+        chunk = self._filter_messages(filter)
+        self.assertEqual(len(chunk), 1, chunk)
+        self.assertEqual(chunk[0].event_id, self.event_id_1)
+
+        # Messages which have references.
+        filter = {"io.element.relation_types": [RelationTypes.REFERENCE]}
+        chunk = self._filter_messages(filter)
+        self.assertEqual(len(chunk), 1, chunk)
+        self.assertEqual(chunk[0].event_id, self.event_id_2)
+
+        # Messages which have either annotations or references.
+        filter = {
+            "io.element.relation_types": [
+                RelationTypes.ANNOTATION,
+                RelationTypes.REFERENCE,
+            ]
+        }
+        chunk = self._filter_messages(filter)
+        self.assertEqual(len(chunk), 2, chunk)
+        self.assertCountEqual(
+            [c.event_id for c in chunk], [self.event_id_1, self.event_id_2]
+        )
+
+    def test_filter_relation_senders_and_type(self):
+        # Messages which second user reacted to.
+        filter = {
+            "io.element.relation_senders": [self.second_user_id],
+            "io.element.relation_types": [RelationTypes.ANNOTATION],
+        }
+        chunk = self._filter_messages(filter)
+        self.assertEqual(len(chunk), 1, chunk)
+        self.assertEqual(chunk[0].event_id, self.event_id_1)
+
+    def test_duplicate_relation(self):
+        """An event should only be returned once if there are multiple relations to it."""
+        self.helper.send_event(
+            room_id=self.room_id,
+            type="m.reaction",
+            content={
+                "m.relates_to": {
+                    "rel_type": RelationTypes.ANNOTATION,
+                    "event_id": self.event_id_1,
+                    "key": "A",
+                }
+            },
+            tok=self.second_tok,
+        )
+
+        filter = {"io.element.relation_senders": [self.second_user_id]}
+        chunk = self._filter_messages(filter)
+        self.assertEqual(len(chunk), 1, chunk)
+        self.assertEqual(chunk[0].event_id, self.event_id_1)