From d44d11d864714d4d99953bdae6625973519f120f Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Tue, 5 Jul 2016 10:39:13 +0100 Subject: [PATCH] Use true/false for boolean parameter inclusive to avoid potential for sqli, and possibly make the code clearer --- synapse/storage/event_push_actions.py | 2 +- synapse/storage/stream.py | 10 ++++++---- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/synapse/storage/event_push_actions.py b/synapse/storage/event_push_actions.py index e3e2e8083e..3d93285f84 100644 --- a/synapse/storage/event_push_actions.py +++ b/synapse/storage/event_push_actions.py @@ -86,7 +86,7 @@ class EventPushActionsStore(SQLBaseStore): " user_id = ?" " AND room_id = ?" " AND %s" - ) % (lower_bound(token, self.database_engine, inclusive=""),) + ) % (lower_bound(token, self.database_engine, inclusive=False),) txn.execute(sql, (user_id, room_id)) row = txn.fetchone() diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py index 23b3a40aaf..56304999dc 100644 --- a/synapse/storage/stream.py +++ b/synapse/storage/stream.py @@ -55,7 +55,8 @@ _STREAM_TOKEN = "stream" _TOPOLOGICAL_TOKEN = "topological" -def lower_bound(token, engine, inclusive=""): +def lower_bound(token, engine, inclusive=False): + inclusive = "=" if inclusive else "" if token.topological is None: return "(%d <%s %s)" % (token.stream, inclusive, "stream_ordering") else: @@ -74,7 +75,8 @@ def lower_bound(token, engine, inclusive=""): ) -def upper_bound(token, engine, inclusive="="): +def upper_bound(token, engine, inclusive=True): + inclusive = "=" if inclusive else "" if token.topological is None: return "(%d >%s %s)" % (token.stream, inclusive, "stream_ordering") else: @@ -616,13 +618,13 @@ class StreamStore(SQLBaseStore): "SELECT topological_ordering, stream_ordering, event_id FROM events" " WHERE room_id = ? AND %s" " ORDER BY topological_ordering DESC, stream_ordering DESC LIMIT ?" - ) % (upper_bound(token, self.database_engine, inclusive=""),) + ) % (upper_bound(token, self.database_engine, inclusive=False),) query_after = ( "SELECT topological_ordering, stream_ordering, event_id FROM events" " WHERE room_id = ? AND %s" " ORDER BY topological_ordering ASC, stream_ordering ASC LIMIT ?" - ) % (lower_bound(token, self.database_engine, inclusive=""),) + ) % (lower_bound(token, self.database_engine, inclusive=False),) txn.execute(query_before, (room_id, before_limit))