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Fix noop checks when updating device keys

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Clients often reupload their device keys (for some reason) so its
important for the server to check for no-ops before sending out device
list update notifications.

The check is broken in python 3 due to the fact comparing bytes and
unicode always fails, and that we write bytes to the DB but get unicode
when we read.
This commit is contained in:
Erik Johnston 2018-11-08 12:14:20 +00:00
parent 264cb14402
commit b1a22b24ab
1 changed files with 5 additions and 0 deletions
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5
synapse/storage/end_to_end_keys.py
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@ -40,6 +40,11 @@ class EndToEndKeyStore(SQLBaseStore):
allow_none=True, allow_none=True,
) )
if old_key_json and not isinstance(old_key_json, bytes):
# In py3 we need old_key_json to match new_key_json type. The DB
# returns unicode while encode_canonical_json returns bytes
old_key_json = old_key_json.encode("utf-8")
new_key_json = encode_canonical_json(device_keys) new_key_json = encode_canonical_json(device_keys)
if old_key_json == new_key_json: if old_key_json == new_key_json:
return False return False