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This commit is contained in:
Hubert Chathi 2019-08-21 13:19:35 -07:00
parent 8c9adcc95d
commit 7c3abc6572
4 changed files with 46 additions and 53 deletions
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76
synapse/handlers/e2e_keys.py
View File

@ -17,6 +17,8 @@
import logging
import time
from six import iteritems
from canonicaljson import encode_canonical_json, json
@ -132,7 +134,7 @@ class E2eKeysHandler(object):
r[user_id] = remote_queries[user_id]
# Get cached cross-signing keys
cross_signing_keys = yield self.query_cross_signing_keys(
cross_signing_keys = yield self.get_cross_signing_keys_from_cache(
device_keys_query, from_user_id
)
@ -200,11 +202,11 @@ class E2eKeysHandler(object):
for user_id, key in remote_result["master_keys"].items():
if user_id in destination_query:
cross_signing_keys["master"][user_id] = key
cross_signing_keys["master_keys"][user_id] = key
for user_id, key in remote_result["self_signing_keys"].items():
if user_id in destination_query:
cross_signing_keys["self_signing"][user_id] = key
cross_signing_keys["self_signing_keys"][user_id] = key
except Exception as e:
failure = _exception_to_failure(e)
@ -222,14 +224,13 @@ class E2eKeysHandler(object):
ret = {"device_keys": results, "failures": failures}
for key, value in iteritems(cross_signing_keys):
ret[key + "_keys"] = value
ret.update(cross_signing_keys)
return ret
@defer.inlineCallbacks
def query_cross_signing_keys(self, query, from_user_id):
"""Get cross-signing keys for users
def get_cross_signing_keys_from_cache(self, query, from_user_id):
"""Get cross-signing keys for users from the database
Args:
query (Iterable[string]) an iterable of user IDs. A dict whose keys
@ -250,43 +251,32 @@ class E2eKeysHandler(object):
for user_id in query:
# XXX: consider changing the store functions to allow querying
# multiple users simultaneously.
try:
key = yield self.store.get_e2e_cross_signing_key(
user_id, "master", from_user_id
)
if key:
master_keys[user_id] = key
except Exception as e:
logger.info("Error getting master key: %s", e)
key = yield self.store.get_e2e_cross_signing_key(
user_id, "master", from_user_id
)
if key:
master_keys[user_id] = key
try:
key = yield self.store.get_e2e_cross_signing_key(
user_id, "self_signing", from_user_id
)
if key:
self_signing_keys[user_id] = key
except Exception as e:
logger.info("Error getting self-signing key: %s", e)
key = yield self.store.get_e2e_cross_signing_key(
user_id, "self_signing", from_user_id
)
if key:
self_signing_keys[user_id] = key
# users can see other users' master and self-signing keys, but can
# only see their own user-signing keys
if from_user_id == user_id:
try:
key = yield self.store.get_e2e_cross_signing_key(
user_id, "user_signing", from_user_id
)
if key:
user_signing_keys[user_id] = key
except Exception as e:
logger.info("Error getting user-signing key: %s", e)
key = yield self.store.get_e2e_cross_signing_key(
user_id, "user_signing", from_user_id
)
if key:
user_signing_keys[user_id] = key
defer.returnValue(
{
"master": master_keys,
"self_signing": self_signing_keys,
"user_signing": user_signing_keys,
}
)
return {
"master_keys": master_keys,
"self_signing_keys": self_signing_keys,
"user_signing_keys": user_signing_keys,
}
@defer.inlineCallbacks
def query_local_devices(self, query):
@ -542,11 +532,13 @@ class E2eKeysHandler(object):
# if everything checks out, then store the keys and send notifications
deviceids = []
if "master_key" in keys:
yield self.store.set_e2e_cross_signing_key(user_id, "master", master_key)
yield self.store.set_e2e_cross_signing_key(
user_id, "master", master_key, time.time() * 1000
)
deviceids.append(master_verify_key.version)
if "self_signing_key" in keys:
yield self.store.set_e2e_cross_signing_key(
user_id, "self_signing", self_signing_key
user_id, "self_signing", self_signing_key, time.time() * 1000
)
try:
deviceids.append(
@ -556,7 +548,7 @@ class E2eKeysHandler(object):
raise SynapseError(400, "Invalid self-signing key", Codes.INVALID_PARAM)
if "user_signing_key" in keys:
yield self.store.set_e2e_cross_signing_key(
user_id, "user_signing", user_signing_key
user_id, "user_signing", user_signing_key, time.time() * 1000
)
# the signature stream matches the semantics that we want for
# user-signing key updates: only the user themselves is notified of
@ -568,7 +560,7 @@ class E2eKeysHandler(object):
if len(deviceids):
yield self.device_handler.notify_device_update(user_id, deviceids)
defer.returnValue({})
return {}
def _check_cross_signing_key(key, user_id, key_type, signing_key=None):

2
synapse/rest/client/v2_alpha/keys.py
View File

@ -263,7 +263,7 @@ class SigningKeyUploadServlet(RestServlet):
)
result = yield self.e2e_keys_handler.upload_signing_keys_for_user(user_id, body)
defer.returnValue((200, result))
return (200, result)
def register_servlets(hs, http_server):

6
synapse/storage/devices.py
View File

@ -317,7 +317,7 @@ class DeviceWorkerStore(SQLBaseStore):
user_ids,
stream_id,
)
defer.returnValue(stream_id)
return stream_id
def _add_user_signature_change_txn(self, txn, from_user_id, user_ids, stream_id):
txn.call_after(
@ -491,9 +491,9 @@ class DeviceWorkerStore(SQLBaseStore):
rows = yield self._execute(
"get_users_whose_signatures_changed", None, sql, user_id, from_key
)
defer.returnValue(set(user for row in rows for user in json.loads(row[0])))
return set(user for row in rows for user in json.loads(row[0]))
else:
defer.returnValue(set())
return set()
def get_all_device_list_changes_for_remotes(self, from_key, to_key):
"""Return a list of `(stream_id, user_id, destination)` which is the

15
synapse/storage/end_to_end_keys.py
View File

@ -14,8 +14,6 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import time
from six import iteritems
from canonicaljson import encode_canonical_json, json
@ -284,7 +282,7 @@ class EndToEndKeyStore(EndToEndKeyWorkerStore, SQLBaseStore):
"delete_e2e_keys_by_device", delete_e2e_keys_by_device_txn
)
def _set_e2e_cross_signing_key_txn(self, txn, user_id, key_type, key):
def _set_e2e_cross_signing_key_txn(self, txn, user_id, key_type, key, added_ts):
"""Set a user's cross-signing key.
Args:
@ -294,6 +292,7 @@ class EndToEndKeyStore(EndToEndKeyWorkerStore, SQLBaseStore):
for a master key, 'self_signing' for a self-signing key, or
'user_signing' for a user-signing key
key (dict): the key data
added_ts (int): the timestamp for when the key was added
"""
# 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
@ -334,18 +333,19 @@ class EndToEndKeyStore(EndToEndKeyWorkerStore, SQLBaseStore):
"user_id": user_id,
"keytype": key_type,
"keydata": json.dumps(key),
"added_ts": time.time() * 1000,
"added_ts": added_ts,
},
desc="store_master_key",
)
def set_e2e_cross_signing_key(self, user_id, key_type, key):
def set_e2e_cross_signing_key(self, user_id, key_type, key, added_ts):
"""Set a user's cross-signing key.
Args:
user_id (str): the user to set the user-signing key for
key_type (str): the type of cross-signing key to set
key (dict): the key data
added_ts (int): the timestamp for when the key was added
"""
return self.runInteraction(
"add_e2e_cross_signing_key",
@ -353,6 +353,7 @@ class EndToEndKeyStore(EndToEndKeyWorkerStore, SQLBaseStore):
user_id,
key_type,
key,
added_ts,
)
def _get_e2e_cross_signing_key_txn(self, txn, user_id, key_type, from_user_id=None):
@ -368,7 +369,7 @@ class EndToEndKeyStore(EndToEndKeyWorkerStore, SQLBaseStore):
the key will be included in the result
Returns:
dict of the key data
dict of the key data or None if not found
"""
sql = (
"SELECT keydata "
@ -412,7 +413,7 @@ class EndToEndKeyStore(EndToEndKeyWorkerStore, SQLBaseStore):
the self-signing key will be included in the result
Returns:
dict of the key data
dict of the key data or None if not found
"""
return self.runInteraction(
"get_e2e_cross_signing_key",