diff options
| -rw-r--r-- | changelog.d/13525.bugfix | 1 | ||||
| -rw-r--r-- | synapse/storage/databases/main/room.py | 6 | ||||
| -rw-r--r-- | tests/rest/admin/test_event_reports.py | 27 |
3 files changed, 34 insertions, 0 deletions
diff --git a/changelog.d/13525.bugfix b/changelog.d/13525.bugfix new file mode 100644 index 0000000000..dbd1adbc88 --- /dev/null +++ b/changelog.d/13525.bugfix @@ -0,0 +1 @@ +Fix a bug in the `/event_reports` Admin API which meant that the total count could be larger than the number of results you can actually query for. \ No newline at end of file diff --git a/synapse/storage/databases/main/room.py b/synapse/storage/databases/main/room.py index 0f1f0d11ea..b7d4baa6bb 100644 --- a/synapse/storage/databases/main/room.py +++ b/synapse/storage/databases/main/room.py @@ -2001,9 +2001,15 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore): where_clause = "WHERE " + " AND ".join(filters) if len(filters) > 0 else "" + # We join on room_stats_state despite not using any columns from it + # because the join can influence the number of rows returned; + # e.g. a room that doesn't have state, maybe because it was deleted. + # The query returning the total count should be consistent with + # the query returning the results. sql = """ SELECT COUNT(*) as total_event_reports FROM event_reports AS er + JOIN room_stats_state ON room_stats_state.room_id = er.room_id {} """.format( where_clause diff --git a/tests/rest/admin/test_event_reports.py b/tests/rest/admin/test_event_reports.py index fbc490f46d..8a4e5c3f77 100644 --- a/tests/rest/admin/test_event_reports.py +++ b/tests/rest/admin/test_event_reports.py @@ -410,6 +410,33 @@ class EventReportsTestCase(unittest.HomeserverTestCase): self.assertIn("score", c) self.assertIn("reason", c) + def test_count_correct_despite_table_deletions(self) -> None: + """ + Tests that the count matches the number of rows, even if rows in joined tables + are missing. + """ + + # Delete rows from room_stats_state for one of our rooms. + self.get_success( + self.hs.get_datastores().main.db_pool.simple_delete( + "room_stats_state", {"room_id": self.room_id1}, desc="_" + ) + ) + + channel = self.make_request( + "GET", + self.url, + access_token=self.admin_user_tok, + ) + + self.assertEqual(200, channel.code, msg=channel.json_body) + # The 'total' field is 10 because only 10 reports will actually + # be retrievable since we deleted the rows in the room_stats_state + # table. + self.assertEqual(channel.json_body["total"], 10) + # This is consistent with the number of rows actually returned. + self.assertEqual(len(channel.json_body["event_reports"]), 10) + class EventReportDetailTestCase(unittest.HomeserverTestCase): servlets = [ |