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Stop synapse from saving messages in device_inbox for hidden devices. (#10097) 

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
This commit is contained in:
JohannesKleine 2021-11-01 11:40:41 +01:00 committed by GitHub
parent e320f5dba3
commit 29ffd680bf
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2 changed files with 7 additions and 2 deletions
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1
changelog.d/10097.bugfix Normal file
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@ -0,0 +1 @@
Fix a long-standing bug which allowed hidden devices to receive to-device messages, resulting in unnecessary database bloat.

8
synapse/storage/databases/main/deviceinbox.py
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@ -489,10 +489,12 @@ class DeviceInboxWorkerStore(SQLBaseStore):
devices = list(messages_by_device.keys()) devices = list(messages_by_device.keys())
if len(devices) == 1 and devices[0] == "*": if len(devices) == 1 and devices[0] == "*":
# Handle wildcard device_ids. # 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( devices = self.db_pool.simple_select_onecol_txn(
txn, txn,
table="devices", table="devices",
keyvalues={"user_id": user_id}, keyvalues={"user_id": user_id, "hidden": False},
retcol="device_id", retcol="device_id",
) )
@ -505,10 +507,12 @@ class DeviceInboxWorkerStore(SQLBaseStore):
if not devices: if not devices:
continue 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( rows = self.db_pool.simple_select_many_txn(
txn, txn,
table="devices", table="devices",
keyvalues={"user_id": user_id}, keyvalues={"user_id": user_id, "hidden": False},
column="device_id", column="device_id",
iterable=devices, iterable=devices,
retcols=("device_id",), retcols=("device_id",),