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don't insert into the device table for remote cross-signing keys (#6956)

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Hubert Chathi 2020-02-20 09:59:00 -05:00 committed by GitHub
parent 4fb5f4d0ce
commit a90d0dc5c2
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2 changed files with 19 additions and 15 deletions
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1
changelog.d/6956.misc Normal file
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@ -0,0 +1 @@
Don't record remote cross-signing keys in the `devices` table.

33
synapse/storage/data_stores/main/end_to_end_keys.py
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@ -680,11 +680,6 @@ class EndToEndKeyStore(EndToEndKeyWorkerStore, SQLBaseStore):
'user_signing' for a user-signing key
key (dict): the key data
"""
# the cross-signing keys need to occupy the same namespace as devices,
# since signatures are identified by device ID. So add an entry to the
# device table to make sure that we don't have a collision with device
# IDs
# the 'key' dict will look something like:
# {
# "user_id": "@alice:example.com",
@ -701,16 +696,24 @@ class EndToEndKeyStore(EndToEndKeyWorkerStore, SQLBaseStore):
# The "keys" property must only have one entry, which will be the public
# key, so we just grab the first value in there
pubkey = next(iter(key["keys"].values()))
self.db.simple_insert_txn(
txn,
"devices",
values={
"user_id": user_id,
"device_id": pubkey,
"display_name": key_type + " signing key",
"hidden": True,
},
)
# The cross-signing keys need to occupy the same namespace as devices,
# since signatures are identified by device ID. So add an entry to the
# device table to make sure that we don't have a collision with device
# IDs.
# We only need to do this for local users, since remote servers should be
# responsible for checking this for their own users.
if self.hs.is_mine_id(user_id):
self.db.simple_insert_txn(
txn,
"devices",
values={
"user_id": user_id,
"device_id": pubkey,
"display_name": key_type + " signing key",
"hidden": True,
},
)
# and finally, store the key itself
with self._cross_signing_id_gen.get_next() as stream_id: