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SYN-75 Verify signatures on server to server transactions

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This commit is contained in:
Mark Haines 2014-09-30 15:15:10 +01:00
parent 52ca867670
commit b95a178584
14 changed files with 245 additions and 235 deletions
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24
synapse/federation/replication.py
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@ -66,6 +66,8 @@ class ReplicationLayer(object):
hs, self.transaction_actions, transport_layer
)
self.keyring = hs.get_keyring()
self.handler = None
self.edu_handlers = {}
self.query_handlers = {}
@ -291,6 +293,10 @@ class ReplicationLayer(object):
@defer.inlineCallbacks
@log_function
def on_incoming_transaction(self, transaction_data):
yield self.keyring.verify_json_for_server(
transaction_data["origin"], transaction_data
)
transaction = Transaction(**transaction_data)
for p in transaction.pdus:
@ -590,7 +596,7 @@ class _TransactionQueue(object):
transaction = Transaction.create_new(
ts=self._clock.time_msec(),
transaction_id=self._next_txn_id,
transaction_id=str(self._next_txn_id),
origin=self.server_name,
destination=destination,
pdus=pdus,
@ -611,20 +617,18 @@ class _TransactionQueue(object):
# FIXME (erikj): This is a bit of a hack to make the Pdu age
# keys work
def cb(transaction):
def json_data_cb():
data = transaction.get_dict()
now = int(self._clock.time_msec())
if "pdus" in transaction:
for p in transaction["pdus"]:
if "pdus" in data:
for p in data["pdus"]:
if "age_ts" in p:
p["age"] = now - int(p["age_ts"])
transaction = sign_json(transaction, server_name, signing_key)
return transaction
data = sign_json(data, server_name, signing_key)
return data
code, response = yield self.transport_layer.send_transaction(
transaction,
on_send_callback=cb,
transaction, json_data_cb
)
logger.debug("TX [%s] Sent transaction", destination)