diff options
| -rw-r--r-- | changelog.d/10097.bugfix | 1 | ||||
| -rw-r--r-- | synapse/storage/databases/main/deviceinbox.py | 8 |
2 files changed, 7 insertions, 2 deletions
diff --git a/changelog.d/10097.bugfix b/changelog.d/10097.bugfix new file mode 100644 index 0000000000..5d3d9587c2 --- /dev/null +++ b/changelog.d/10097.bugfix @@ -0,0 +1 @@ +Fix a long-standing bug which allowed hidden devices to receive to-device messages, resulting in unnecessary database bloat. diff --git a/synapse/storage/databases/main/deviceinbox.py b/synapse/storage/databases/main/deviceinbox.py index d03b5e5a7d..25e9c1efe1 100644 --- a/synapse/storage/databases/main/deviceinbox.py +++ b/synapse/storage/databases/main/deviceinbox.py @@ -489,10 +489,12 @@ class DeviceInboxWorkerStore(SQLBaseStore): devices = list(messages_by_device.keys()) if len(devices) == 1 and devices[0] == "*": # Handle wildcard device_ids. + # We exclude hidden devices (such as cross-signing keys) here as they are + # not expected to receive to-device messages. devices = self.db_pool.simple_select_onecol_txn( txn, table="devices", - keyvalues={"user_id": user_id}, + keyvalues={"user_id": user_id, "hidden": False}, retcol="device_id", ) @@ -505,10 +507,12 @@ class DeviceInboxWorkerStore(SQLBaseStore): if not devices: continue + # We exclude hidden devices (such as cross-signing keys) here as they are + # not expected to receive to-device messages. rows = self.db_pool.simple_select_many_txn( txn, table="devices", - keyvalues={"user_id": user_id}, + keyvalues={"user_id": user_id, "hidden": False}, column="device_id", iterable=devices, retcols=("device_id",), |