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Merge pull request #955 from matrix-org/markjh/only_from2

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Add a couple more checks to the keyring
This commit is contained in:
Mark Haines 2016-07-27 15:08:22 +01:00 committed by GitHub
commit 884b800899
1 changed files with 9 additions and 2 deletions
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11
synapse/crypto/keyring.py
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@ -448,7 +448,7 @@ class Keyring(object):
)
processed_response = yield self.process_v2_response(
perspective_name, response
perspective_name, response, only_from_server=False
)
for server_name, response_keys in processed_response.items():
@ -528,7 +528,7 @@ class Keyring(object):
@defer.inlineCallbacks
def process_v2_response(self, from_server, response_json,
requested_ids=[]):
requested_ids=[], only_from_server=True):
time_now_ms = self.clock.time_msec()
response_keys = {}
verify_keys = {}
@ -552,6 +552,13 @@ class Keyring(object):
results = {}
server_name = response_json["server_name"]
if only_from_server:
if server_name != from_server:
raise ValueError(
"Expected a response for server %r not %r" % (
from_server, server_name
)
)
for key_id in response_json["signatures"].get(server_name, {}):
if key_id not in response_json["verify_keys"]:
raise ValueError(