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Add cross-signing sigs to the keys object (#8234)

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All the callers want this info in the same place, so let's reduce the
duplication by doing it here.
This commit is contained in:
Richard van der Hoff 2020-09-04 15:06:05 +01:00 committed by GitHub
parent 041ee971c9
commit f25af1f9c7
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 18 additions and 34 deletions
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1
changelog.d/8234.misc Normal file
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@ -0,0 +1 @@
Refactor queries for device keys and cross-signatures.

12
synapse/storage/databases/main/devices.py
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@ -291,15 +291,9 @@ class DeviceWorkerStore(SQLBaseStore):
prev_id = stream_id
if device is not None:
key_json = device.key_json
if key_json:
result["keys"] = db_to_json(key_json)
if device.signatures:
for sig_user_id, sigs in device.signatures.items():
result["keys"].setdefault("signatures", {}).setdefault(
sig_user_id, {}
).update(sigs)
keys = device.keys
if keys:
result["keys"] = keys
device_display_name = device.display_name
if device_display_name:

39
synapse/storage/databases/main/end_to_end_keys.py
View File

@ -43,12 +43,8 @@ class DeviceKeyLookupResult:
# the key data from e2e_device_keys_json. Typically includes fields like
# "algorithm", "keys" (including the curve25519 identity key and the ed25519 signing
# key) and "signatures" (a signature of the structure by the ed25519 key)
key_json = attr.ib(type=Optional[str])
# cross-signing sigs on this device.
# dict from (signing user_id)->(signing device_id)->sig
signatures = attr.ib(type=Optional[Dict[str, Dict[str, str]]], factory=dict)
# key) and "signatures" (a map from (user id) to (key id/device_id) to signature.)
keys = attr.ib(type=Optional[JsonDict])
class EndToEndKeyWorkerStore(SQLBaseStore):
@ -70,15 +66,9 @@ class EndToEndKeyWorkerStore(SQLBaseStore):
for device_id, device in user_devices.items():
result = {"device_id": device_id}
key_json = device.key_json
if key_json:
result["keys"] = db_to_json(key_json)
if device.signatures:
for sig_user_id, sigs in device.signatures.items():
result["keys"].setdefault("signatures", {}).setdefault(
sig_user_id, {}
).update(sigs)
keys = device.keys
if keys:
result["keys"] = keys
device_display_name = device.display_name
if device_display_name:
@ -114,16 +104,11 @@ class EndToEndKeyWorkerStore(SQLBaseStore):
for user_id, device_keys in results.items():
rv[user_id] = {}
for device_id, device_info in device_keys.items():
r = db_to_json(device_info.key_json)
r = device_info.keys
r["unsigned"] = {}
display_name = device_info.display_name
if display_name is not None:
r["unsigned"]["device_display_name"] = display_name
if device_info.signatures:
for sig_user_id, sigs in device_info.signatures.items():
r.setdefault("signatures", {}).setdefault(
sig_user_id, {}
).update(sigs)
rv[user_id][device_id] = r
return rv
@ -140,6 +125,9 @@ class EndToEndKeyWorkerStore(SQLBaseStore):
Any cross-signatures made on the keys by the owner of the device are also
included.
The cross-signatures are added to the `signatures` field within the `keys`
object in the response.
Args:
query_list: List of pairs of user_ids and device_ids. Device id can be None
to indicate "all devices for this user"
@ -170,7 +158,7 @@ class EndToEndKeyWorkerStore(SQLBaseStore):
(user_id, device_id)
for user_id, dev in result.items()
for device_id, d in dev.items()
if d is not None
if d is not None and d.keys is not None
)
for batch in batch_iter(signature_query, 50):
@ -183,8 +171,9 @@ class EndToEndKeyWorkerStore(SQLBaseStore):
# add each cross-signing signature to the correct device in the result dict.
for (user_id, key_id, device_id, signature) in cross_sigs_result:
target_device_result = result[user_id][device_id]
target_device_signatures = target_device_result.signatures
target_device_signatures = target_device_result.keys.setdefault(
"signatures", {}
)
signing_user_signatures = target_device_signatures.setdefault(
user_id, {}
)
@ -240,7 +229,7 @@ class EndToEndKeyWorkerStore(SQLBaseStore):
if include_deleted_devices:
deleted_devices.remove((user_id, device_id))
result.setdefault(user_id, {})[device_id] = DeviceKeyLookupResult(
display_name, key_json
display_name, db_to_json(key_json) if key_json else None
)
if include_deleted_devices: