async def test_processing_messages(self):
settings.network.magic = 769
socket_mock = NeoNodeSocketMock(self.loop, '127.0.0.1', 1111)
m_addr = message.Message(msg_type=message.MessageType.ADDR, payload=payloads.AddrPayload([]))
m_block = message.Message(msg_type=message.MessageType.BLOCK, payload=payloads.EmptyPayload())
m_inv1 = message.Message(msg_type=message.MessageType.INV, payload=payloads.InventoryPayload(
payloads.InventoryType.BLOCK,
hashes=[types.UInt256.from_string("65793a030c0dcd4fff4da8a6a6d5daa8b570750da4fdeea1bbc43bdf124aedc9")]
))
m_inv2 = message.Message(msg_type=message.MessageType.INV,
payload=payloads.InventoryPayload(payloads.InventoryType.TX, []))
m_getaddr = message.Message(msg_type=message.MessageType.GETADDR, payload=payloads.EmptyPayload())
m_mempool = message.Message(msg_type=message.MessageType.MEMPOOL, payload=payloads.EmptyPayload())
# taken from the Headers testcase in `test_payloads`
raw_headers_payload = binascii.unhexlify(b'0000000001FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00A402FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00FF00A400000000000000007B00000000F7B4D00143932F3B6243CFC06CB4A68F22C739E201020102020304')
m_headers = message.Message(msg_type=message.MessageType.HEADERS,
payload=payloads.HeadersPayload.deserialize_from_bytes(raw_headers_payload))
m_ping = message.Message(msg_type=message.MessageType.PING, payload=payloads.PingPayload(0))
m_pong = message.Message(msg_type=message.MessageType.PONG, payload=payloads.PingPayload(0))
m_reject = message.Message(msg_type=message.MessageType.REJECT, payload=payloads.EmptyPayload())
def _recv_data2(self):
# first do handshake
yield self.m_send_version.to_array()
yield self.m_verack.to_array()
# next send all types of messages we handle
yield m_addr.to_array()
yield m_block.to_array()
yield m_inv1.to_array()
yield m_inv2.to_array()
yield m_getaddr.to_array()
yield m_mempool.to_array()
yield m_headers.to_array()
yield m_ping.to_array()
yield m_pong.to_array()
yield m_reject.to_array()
socket_mock.recv_data = _recv_data2(socket_mock)
with self.assertLogs(network_logger, 'DEBUG') as log_context:
try:
n, _ = await node.NeoNode.connect_to(socket=socket_mock)
except Exception as e:
print(f"GVD {e}")
await asyncio.sleep(0.5)
await n.disconnect(payloads.DisconnectReason.SHUTTING_DOWN)
async def test_processing_messages3(self):
# we got 2 cases for which we need to test without using a backend
settings.network.magic = 769
settings.storage.use_default = False
socket_mock = NeoNodeSocketMock(self.loop, '127.0.0.1', 1111)
m_inv1 = message.Message(
msg_type=message.MessageType.INV,
payload=payloads.InventoryPayload(
payloads.InventoryType.BLOCK,
hashes=[
types.UInt256.from_string(
"65793a030c0dcd4fff4da8a6a6d5daa8b570750da4fdeea1bbc43bdf124aedc9"
)
]))
m_ping = message.Message(msg_type=message.MessageType.PING,
payload=payloads.PingPayload(0))
def _recv_data2(self):
print("my recv data 2 called ")
# first do handshake
yield self.m_send_version.to_array()
yield self.m_verack.to_array()
yield m_inv1.to_array()
yield m_ping.to_array()
socket_mock.recv_data = _recv_data2(socket_mock)
with self.assertLogs(network_logger, 'DEBUG') as log_context:
with mock.patch('neo3.network.node.NeoNode.send_message',
new_callable=asynctest.CoroutineMock):
# with asynctest.patch('neo3.network.node.NeoNode.send_message', return_value=asynctest.CoroutineMock()):
n, _ = await node.NeoNode.connect_to(socket=socket_mock)
await asyncio.sleep(0.1)
await n.disconnect(payloads.DisconnectReason.SHUTTING_DOWN)
async def _monitor_node_height(self) -> None:
now = datetime.utcnow().timestamp()
for node in self.nodes:
if now - node.best_height_last_update > self.MAX_HEIGHT_UPDATE_DURATION:
logger.debug(
f"Disconnecting node {node.nodeid} Reason: max height update threshold exceeded."
)
asyncio.create_task(
node.disconnect(
reason=payloads.DisconnectReason.POOR_PERFORMANCE))
else:
logger.debug(
f"Asking node {node.nodeid_human} to send us a height update (PING)"
)
# Request latest height from node
if settings.database:
height = max(0, blockchain.Blockchain().height)
else:
height = 0
m = message.Message(
msg_type=message.MessageType.PING,
payload=payloads.PingPayload(height=height))
task = asyncio.create_task(node.send_message(m))
self.tasks.append(task)
task.add_done_callback(lambda fut: self.tasks.remove(fut))
async def send_ping(self):
if settings.database:
height = max(0, blockchain.Blockchain().height)
else:
height = 0
ping = payloads.PingPayload(height)
m = message.Message(msg_type=message.MessageType.PING, payload=ping)
await self.send_message(m)
def handler_ping(self, msg: message.Message) -> None:
"""
Handler for a message with the PING type.
Args:
msg:
"""
if settings.database:
height = max(0, blockchain.Blockchain().height)
else:
height = 0
m = message.Message(msg_type=message.MessageType.PONG,
payload=payloads.PingPayload(height=height))
self._create_task_with_cleanup(self.send_message(m))
def handler_inv(self, msg: message.Message) -> None:
"""
Handler for a message with the INV type.
Args:
msg:
"""
payload = cast(payloads.InventoryPayload, msg.payload)
if payload.type == payloads.InventoryType.BLOCK:
# neo-cli broadcasts INV messages on a regular interval. We can use those as trigger to request
# their latest block height
if len(payload.hashes) > 0:
if settings.database:
height = max(0, blockchain.Blockchain().height)
else:
height = 0
m = message.Message(
msg_type=message.MessageType.PING,
payload=payloads.PingPayload(height=height))
self._create_task_with_cleanup(self.send_message(m))
else:
logger.debug(
f"Message with type INV received. No processing for payload type " # type:ignore
f"{payload.type.name} implemented")
