class DHTComponent(Component):
component_name = DHT_COMPONENT
depends_on = [UPNP_COMPONENT]
def __init__(self, component_manager):
super().__init__(component_manager)
self.dht_node: Node = None
self.upnp_component = None
self.external_udp_port = None
self.external_peer_port = None
@property
def component(self) -> typing.Optional[Node]:
return self.dht_node
async def get_status(self):
return {
'node_id': None if not self.dht_node else binascii.hexlify(self.dht_node.protocol.node_id),
'peers_in_routing_table': 0 if not self.dht_node else len(self.dht_node.protocol.routing_table.get_peers())
}
def get_node_id(self):
node_id_filename = os.path.join(self.conf.data_dir, "node_id")
if os.path.isfile(node_id_filename):
with open(node_id_filename, "r") as node_id_file:
return base58.b58decode(str(node_id_file.read()).strip())
node_id = utils.generate_id()
with open(node_id_filename, "w") as node_id_file:
node_id_file.write(base58.b58encode(node_id).decode())
return node_id
async def start(self):
log.info("start the dht")
self.upnp_component = self.component_manager.get_component(UPNP_COMPONENT)
self.external_peer_port = self.upnp_component.upnp_redirects.get("TCP", self.conf.tcp_port)
self.external_udp_port = self.upnp_component.upnp_redirects.get("UDP", self.conf.udp_port)
external_ip = self.upnp_component.external_ip
if not external_ip:
log.warning("UPnP component failed to get external ip")
external_ip = await get_external_ip()
if not external_ip:
log.warning("failed to get external ip")
self.dht_node = Node(
asyncio.get_event_loop(),
self.component_manager.peer_manager,
node_id=self.get_node_id(),
internal_udp_port=self.conf.udp_port,
udp_port=self.external_udp_port,
external_ip=external_ip,
peer_port=self.external_peer_port,
rpc_timeout=self.conf.node_rpc_timeout
)
self.dht_node.start(
interface=self.conf.network_interface, known_node_urls=self.conf.known_dht_nodes
)
log.info("Started the dht")
async def stop(self):
self.dht_node.stop()
async def setup_network(self, size: int, start_port=40000, seed_nodes=1):
for i in range(size):
node_port = start_port + i
node = Node(self.loop, PeerManager(self.loop), node_id=constants.generate_id(i),
udp_port=node_port, internal_udp_port=node_port,
peer_port=3333, external_ip='127.0.0.1')
self.nodes.append(node)
self.known_node_addresses.append(('127.0.0.1', node_port))
await node.start_listening('127.0.0.1')
self.addCleanup(node.stop)
for node in self.nodes:
node.protocol.rpc_timeout = .5
node.protocol.ping_queue._default_delay = .5
node.start('127.0.0.1', self.known_node_addresses[:seed_nodes])
await asyncio.gather(*[node.joined.wait() for node in self.nodes])
class DHTComponent(Component):
component_name = DHT_COMPONENT
depends_on = [UPNP_COMPONENT]
def __init__(self, component_manager):
super().__init__(component_manager)
self.dht_node = None
self.upnp_component = None
self.external_udp_port = None
self.external_peer_port = None
@property
def component(self):
return self.dht_node
def get_status(self):
return {
'node_id':
binascii.hexlify(conf.settings.get_node_id()),
'peers_in_routing_table':
0 if not self.dht_node else len(self.dht_node.contacts)
}
@defer.inlineCallbacks
def start(self):
self.upnp_component = self.component_manager.get_component(
UPNP_COMPONENT)
self.external_peer_port = self.upnp_component.upnp_redirects.get(
"TCP", conf.settings["peer_port"])
self.external_udp_port = self.upnp_component.upnp_redirects.get(
"UDP", conf.settings["dht_node_port"])
node_id = conf.settings.get_node_id()
if node_id is None:
node_id = generate_id()
external_ip = self.upnp_component.external_ip
if not external_ip:
log.warning("UPnP component failed to get external ip")
external_ip = yield get_external_ip()
if not external_ip:
log.warning("failed to get external ip")
self.dht_node = Node(node_id=node_id,
udpPort=conf.settings['dht_node_port'],
externalUDPPort=self.external_udp_port,
externalIP=external_ip,
peerPort=self.external_peer_port)
yield self.dht_node.start(conf.settings['known_dht_nodes'],
block_on_join=False)
log.info("Started the dht")
@defer.inlineCallbacks
def stop(self):
yield self.dht_node.stop()