def receive_message(self, datagram):
if len(datagram) < 166:
self.log.warning("received datagram too small from %s, ignoring" % self.addr)
return False
m = Message()
try:
m.ParseFromString(datagram)
self.node = Node(m.sender.guid,
m.sender.nodeAddress.ip,
m.sender.nodeAddress.port,
m.sender.publicKey,
None if not m.sender.HasField("relayAddress") else
(m.sender.relayAddress.ip, m.sender.relayAddress.port),
m.sender.natType,
m.sender.vendor)
pubkey = m.sender.publicKey
verify_key = nacl.signing.VerifyKey(pubkey)
signature = m.signature
m.ClearField("signature")
verify_key.verify(m.SerializeToString(), signature)
h = nacl.hash.sha512(m.sender.publicKey)
pow_hash = h[40:]
if int(pow_hash[:6], 16) >= 50 or m.sender.guid.encode("hex") != h[:40]:
raise Exception('Invalid GUID')
except Exception:
# If message isn't formatted property then ignore
self.log.warning("received an invalid message from %s, ignoring" % self.addr)
return False
for processor in self.processors:
if m.command in processor or m.command == NOT_FOUND:
processor.receive_message(m, self.node, self.connection, self.ban_score)
def receive_message(self, datagram):
if len(datagram) < 166:
self.log.warning(
"received datagram too small from %s, ignoring" %
self.addr)
return False
try:
m = Message()
m.ParseFromString(datagram)
self.node = Node(
m.sender.guid, m.sender.nodeAddress.ip,
m.sender.nodeAddress.port, m.sender.publicKey,
None if not m.sender.HasField("relayAddress") else
(m.sender.relayAddress.ip, m.sender.relayAddress.port),
m.sender.natType, m.sender.vendor)
self.remote_node_version = m.protoVer
if self.time_last_message == 0:
h = nacl.hash.sha512(m.sender.publicKey)
pow_hash = h[40:]
if int(pow_hash[:6],
16) >= 50 or m.sender.guid.encode("hex") != h[:40]:
raise Exception('Invalid GUID')
for processor in self.processors:
if m.command in processor or m.command == NOT_FOUND:
processor.receive_message(m, self.node,
self.connection,
self.ban_score)
if m.command != PING:
self.time_last_message = time.time()
except Exception:
# If message isn't formatted property then ignore
self.log.warning(
"received an invalid message from %s, ignoring" %
self.addr)
return False
def receive_message(self, datagram, connection):
m = Message()
try:
m.ParseFromString(datagram)
sender = node.Node(m.sender.guid, m.sender.ip, m.sender.port, m.sender.signedPublicKey, m.sender.vendor)
except Exception:
# If message isn't formatted property then ignore
self.log.warning("Received unknown message from %s, ignoring" % str(connection.dest_addr))
return False
# Check that the GUID is valid. If not, ignore
if self.router.isNewNode(sender):
try:
pubkey = m.sender.signedPublicKey[len(m.sender.signedPublicKey) - 32:]
verify_key = nacl.signing.VerifyKey(pubkey)
verify_key.verify(m.sender.signedPublicKey)
h = nacl.hash.sha512(m.sender.signedPublicKey)
pow_hash = h[64:128]
if int(pow_hash[:6], 16) >= 50 or hexlify(m.sender.guid) != h[:40]:
raise Exception('Invalid GUID')
except Exception:
self.log.warning("Received message from sender with invalid GUID, ignoring")
return False
if m.sender.vendor:
VendorStore().save_vendor(m.sender.guid, m.sender.ip, m.sender.port, m.sender.signedPublicKey)
msgID = m.messageID
data = tuple(m.arguments)
if msgID in self._outstanding:
self._acceptResponse(msgID, data, sender)
else:
self._acceptRequest(msgID, str(Command.Name(m.command)).lower(), data, sender, connection)
def receive_message(self, datagram):
if len(datagram) < 166:
self.log.warning(
"received datagram too small from %s, ignoring" %
str(self.connection.dest_addr))
return False
m = Message()
try:
m.ParseFromString(datagram)
for processor in self.processors:
if m.command in processor:
processor.receive_message(datagram, self.connection)
except Exception:
# If message isn't formatted property then ignore
self.log.warning("Received unknown message from %s, ignoring" %
str(self.connection.dest_addr))
return False
def receive_message(self, datagram):
if len(datagram) < 166:
self.log.warning(
"received datagram too small from %s, ignoring" %
self.addr)
return False
m = Message()
try:
m.ParseFromString(datagram)
self.node = Node(m.sender.guid, m.sender.ip, m.sender.port,
m.sender.signedPublicKey, m.sender.vendor)
for processor in self.processors:
if m.command in processor or m.command == NOT_FOUND:
processor.receive_message(datagram, self.connection)
except Exception:
# If message isn't formatted property then ignore
self.log.warning("received unknown message from %s, ignoring" %
self.addr)
return False
def receive_message(self, datagram, connection, ban_score):
m = Message()
try:
m.ParseFromString(datagram)
sender = node.Node(m.sender.guid, m.sender.ip, m.sender.port,
m.sender.signedPublicKey, m.sender.vendor)
except Exception:
# If message isn't formatted property then ignore
self.log.warning("received unknown message from %s, ignoring" %
str(connection.dest_addr))
return False
if m.testnet != self.multiplexer.testnet:
self.log.warning(
"received message from %s with incorrect network parameters." %
str(connection.dest_addr))
connection.shutdown()
return False
if m.protoVer < PROTOCOL_VERSION:
self.log.warning(
"received message from %s with incompatible protocol version."
% str(connection.dest_addr))
connection.shutdown()
return False
# Check that the GUID is valid. If not, ignore
if self.router.isNewNode(sender):
try:
pubkey = m.sender.signedPublicKey[len(m.sender.signedPublicKey
) - 32:]
verify_key = nacl.signing.VerifyKey(pubkey)
verify_key.verify(m.sender.signedPublicKey)
h = nacl.hash.sha512(m.sender.signedPublicKey)
pow_hash = h[64:128]
if int(pow_hash[:6], 16) >= 50 or hexlify(
m.sender.guid) != h[:40]:
raise Exception('Invalid GUID')
except Exception:
self.log.warning(
"received message from sender with invalid GUID, ignoring")
connection.shutdown()
return False
if m.sender.vendor:
self.db.VendorStore().save_vendor(m.sender.guid.encode("hex"),
m.sender.ip, m.sender.port,
m.sender.signedPublicKey)
msgID = m.messageID
if m.command == NOT_FOUND:
data = None
else:
data = tuple(m.arguments)
if msgID in self._outstanding:
self._acceptResponse(msgID, data, sender)
elif m.command != NOT_FOUND:
ban_score.process_message(m)
self._acceptRequest(msgID,
str(Command.Name(m.command)).lower(), data,
sender, connection)
