async def _receive_handshake(self, reader: asyncio.StreamReader,
writer: asyncio.StreamWriter) -> None:
msg = await self.wait(reader.read(ENCRYPTED_AUTH_MSG_LEN),
timeout=REPLY_TIMEOUT)
ip, socket, *_ = writer.get_extra_info("peername")
remote_address = Address(ip, socket)
self.logger.debug("Receiving handshake from %s", remote_address)
got_eip8 = False
try:
ephem_pubkey, initiator_nonce, initiator_pubkey = decode_authentication(
msg, self.privkey)
except DecryptionError:
# Try to decode as EIP8
got_eip8 = True
msg_size = big_endian_to_int(msg[:2])
remaining_bytes = msg_size - ENCRYPTED_AUTH_MSG_LEN + 2
msg += await self.wait(reader.read(remaining_bytes),
timeout=REPLY_TIMEOUT)
try:
ephem_pubkey, initiator_nonce, initiator_pubkey = decode_authentication(
msg, self.privkey)
except DecryptionError as e:
self.logger.debug("Failed to decrypt handshake: %s", e)
return
initiator_remote = Node(initiator_pubkey, remote_address)
responder = HandshakeResponder(initiator_remote, self.privkey,
got_eip8, self.cancel_token)
responder_nonce = secrets.token_bytes(HASH_LEN)
auth_ack_msg = responder.create_auth_ack_message(responder_nonce)
auth_ack_ciphertext = responder.encrypt_auth_ack_message(auth_ack_msg)
# Use the `writer` to send the reply to the remote
writer.write(auth_ack_ciphertext)
await self.wait(writer.drain())
# Call `HandshakeResponder.derive_shared_secrets()` and use return values to create `Peer`
aes_secret, mac_secret, egress_mac, ingress_mac = responder.derive_secrets(
initiator_nonce=initiator_nonce,
responder_nonce=responder_nonce,
remote_ephemeral_pubkey=ephem_pubkey,
auth_init_ciphertext=msg,
auth_ack_ciphertext=auth_ack_ciphertext)
connection = PeerConnection(
reader=reader,
writer=writer,
aes_secret=aes_secret,
mac_secret=mac_secret,
egress_mac=egress_mac,
ingress_mac=ingress_mac,
)
# Create and register peer in peer_pool
peer = self.peer_pool.get_peer_factory().create_peer(
remote=initiator_remote,
connection=connection,
inbound=True,
)
if self.peer_pool.is_full:
await peer.disconnect(DisconnectReason.too_many_peers)
return
elif not self.peer_pool.is_valid_connection_candidate(peer.remote):
await peer.disconnect(DisconnectReason.useless_peer)
return
total_peers = len(self.peer_pool)
inbound_peer_count = len([
peer for peer in self.peer_pool.connected_nodes.values()
if peer.inbound
])
if total_peers > 1 and inbound_peer_count / total_peers > DIAL_IN_OUT_RATIO:
# make sure to have at least 1/4 outbound connections
await peer.disconnect(DisconnectReason.too_many_peers)
else:
# We use self.wait() here as a workaround for
# https://github.com/ethereum/py-evm/issues/670.
await self.wait(self.do_handshake(peer))
peer, peer.is_running, subscribers, longest_queue)
self.logger.debug("== End peer details == ")
try:
await self.wait(asyncio.sleep(self._report_interval))
except OperationCancelled:
break
DEFAULT_PREFERRED_NODES: Dict[int, Tuple[Node, ...]] = {
MAINNET_NETWORK_ID: (
Node(
keys.PublicKey(
decode_hex(
"1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082"
)), # noqa: E501
Address("52.74.57.123", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"78de8a0916848093c73790ead81d1928bec737d565119932b98c6b100d944b7a95e94f847f689fc723399d2e31129d182f7ef3863f2b4c820abbf3ab2722344d"
)), # noqa: E501
Address("191.235.84.50", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"ddd81193df80128880232fc1deb45f72746019839589eeb642d3d44efbb8b2dda2c1a46a348349964a6066f8afb016eb2a8c0f3c66f32fadf4370a236a4b5286"
)), # noqa: E501
Address("52.231.202.145", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
def _test() -> None:
import argparse
from eth_keys import keys
from eth_utils import (
decode_hex, )
from evm.db.backends.memory import MemoryDB
from p2p import ecies
from p2p.exceptions import (
OperationCancelled, )
from tests.p2p.dumb_peer import DumbPeer
from tests.p2p.integration_test_helpers import FakeAsyncChainDB
parser = argparse.ArgumentParser()
parser.add_argument('-debug', action="store_true")
parser.add_argument('-server-address', type=str, required=True)
parser.add_argument('-bootstrap', '--list', type=str)
parser.add_argument('-privkey', type=str)
args = parser.parse_args()
logging.basicConfig(level=logging.INFO,
format='%(asctime)s %(levelname)s: %(message)s',
datefmt='%H:%M:%S')
log_level = logging.INFO
if args.debug:
log_level = logging.DEBUG
logging.getLogger('p2p.server.Server').setLevel(log_level)
loop = asyncio.get_event_loop()
chaindb = FakeAsyncChainDB(MemoryDB())
if args.privkey:
privkey = keys.PrivateKey(decode_hex(args.privkey))
else:
privkey = ecies.generate_privkey()
ip, port = args.server_address.split(':')
server_address = Address(ip, port)
if args.list:
bootstrap_nodes = args.list.split(',')
else:
bootstrap_nodes = []
server = Server(privkey,
server_address,
chaindb,
bootstrap_nodes,
1,
peer_class=DumbPeer)
asyncio.ensure_future(server.run())
asyncio.ensure_future(server.peer_pool.run())
async def run():
try:
while True:
if len(server.peer_pool.connected_nodes) >= 1:
server.logger.debug('peers: %d',
len(server.peer_pool.connected_nodes))
else:
server.logger.debug('no peer connected')
await asyncio.sleep(1)
except (OperationCancelled, KeyboardInterrupt):
pass
await server.peer_pool.stop()
await server.stop()
loop.run_until_complete(run())
loop.close()
from tests.p2p.auth_constants import eip8_values
from tests.core.integration_test_helpers import FakeAsyncHeaderDB
def get_open_port():
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(("", 0))
s.listen(1)
port = s.getsockname()[1]
s.close()
return port
port = get_open_port()
NETWORK_ID = 99
SERVER_ADDRESS = Address('127.0.0.1', udp_port=port, tcp_port=port)
RECEIVER_PRIVKEY = keys.PrivateKey(eip8_values['receiver_private_key'])
RECEIVER_PUBKEY = RECEIVER_PRIVKEY.public_key
RECEIVER_REMOTE = Node(RECEIVER_PUBKEY, SERVER_ADDRESS)
INITIATOR_PRIVKEY = keys.PrivateKey(eip8_values['initiator_private_key'])
INITIATOR_PUBKEY = INITIATOR_PRIVKEY.public_key
INITIATOR_ADDRESS = Address('127.0.0.1', get_open_port() + 1)
INITIATOR_REMOTE = Node(INITIATOR_PUBKEY, INITIATOR_ADDRESS)
class ParagonServer(BaseServer):
def _make_peer_pool(self):
return ParagonPeerPool(
privkey=self.privkey,
context=ParagonContext(),
async def receive_connection(
cls, reader: asyncio.StreamReader, writer: asyncio.StreamWriter,
private_key: datatypes.PrivateKey) -> TransportAPI:
try:
msg = await asyncio.wait_for(
reader.readexactly(ENCRYPTED_AUTH_MSG_LEN),
timeout=REPLY_TIMEOUT,
)
except asyncio.IncompleteReadError as err:
raise HandshakeFailure(*err.args) from err
try:
ephem_pubkey, initiator_nonce, initiator_pubkey = decode_authentication(
msg,
private_key,
)
except DecryptionError as non_eip8_err:
# Try to decode as EIP8
msg_size = big_endian_to_int(msg[:2])
remaining_bytes = msg_size - ENCRYPTED_AUTH_MSG_LEN + 2
try:
msg += await asyncio.wait_for(
reader.readexactly(remaining_bytes),
timeout=REPLY_TIMEOUT,
)
except asyncio.IncompleteReadError as err:
raise HandshakeFailure(*err.args) from err
try:
ephem_pubkey, initiator_nonce, initiator_pubkey = decode_authentication(
msg,
private_key,
)
except DecryptionError as eip8_err:
raise HandshakeFailure(
f"Failed to decrypt both EIP8 handshake: {eip8_err} and "
f"non-EIP8 handshake: {non_eip8_err}")
else:
got_eip8 = True
else:
got_eip8 = False
peername = writer.get_extra_info("peername")
if peername is None:
socket = writer.get_extra_info("socket")
sockname = writer.get_extra_info("sockname")
raise HandshakeFailure(
"Received incoming connection with no remote information:"
f"socket={repr(socket)} sockname={sockname}")
ip, socket, *_ = peername
remote_address = Address(ip, socket, socket)
cls.logger.debug("Receiving auth handshake from %s", remote_address)
initiator_remote = Node.from_pubkey_and_addr(initiator_pubkey,
remote_address)
responder = HandshakeResponder(initiator_remote, private_key, got_eip8)
responder_nonce = secrets.token_bytes(HASH_LEN)
auth_ack_msg = responder.create_auth_ack_message(responder_nonce)
auth_ack_ciphertext = responder.encrypt_auth_ack_message(auth_ack_msg)
if writer.transport.is_closing() or reader.at_eof():
raise HandshakeFailure(
f"Connection to {initiator_remote} is closing")
# Use the `writer` to send the reply to the remote
writer.write(auth_ack_ciphertext)
await writer.drain()
# Call `HandshakeResponder.derive_shared_secrets()` and use return values to create `Peer`
aes_secret, mac_secret, egress_mac, ingress_mac = responder.derive_secrets(
initiator_nonce=initiator_nonce,
responder_nonce=responder_nonce,
remote_ephemeral_pubkey=ephem_pubkey,
auth_init_ciphertext=msg,
auth_ack_ciphertext=auth_ack_ciphertext)
transport = cls(
remote=initiator_remote,
private_key=private_key,
reader=reader,
writer=writer,
aes_secret=aes_secret,
mac_secret=mac_secret,
egress_mac=egress_mac,
ingress_mac=ingress_mac,
)
return transport
async def _receive_handshake(self, reader: asyncio.StreamReader,
writer: asyncio.StreamWriter) -> None:
self.logger.debug("Receiving handshake...")
# Use reader to read the auth_init msg until EOF
msg = await wait_with_token(
reader.read(ENCRYPTED_AUTH_MSG_LEN),
token=self.cancel_token,
)
# Use decode_authentication(auth_init_message) on auth init msg
try:
ephem_pubkey, initiator_nonce, initiator_pubkey = decode_authentication(
msg, self.privkey)
# Try to decode as EIP8
except DecryptionError:
msg_size = big_endian_to_int(msg[:2])
remaining_bytes = msg_size - ENCRYPTED_AUTH_MSG_LEN + 2
msg += await wait_with_token(
reader.read(remaining_bytes),
token=self.cancel_token,
)
ephem_pubkey, initiator_nonce, initiator_pubkey = decode_authentication(
msg, self.privkey)
# Get remote's address: IPv4 or IPv6
ip, socket, *_ = writer.get_extra_info("peername")
remote_address = Address(ip, socket)
# Create `HandshakeResponder(remote: kademlia.Node, privkey: datatypes.PrivateKey)` instance
initiator_remote = Node(initiator_pubkey, remote_address)
responder = HandshakeResponder(initiator_remote, self.privkey)
# Call `HandshakeResponder.create_auth_ack_message(nonce: bytes)` to create the reply
responder_nonce = secrets.token_bytes(HASH_LEN)
auth_ack_msg = responder.create_auth_ack_message(nonce=responder_nonce)
auth_ack_ciphertext = responder.encrypt_auth_ack_message(auth_ack_msg)
# Use the `writer` to send the reply to the remote
writer.write(auth_ack_ciphertext)
await writer.drain()
# Call `HandshakeResponder.derive_shared_secrets()` and use return values to create `Peer`
aes_secret, mac_secret, egress_mac, ingress_mac = responder.derive_secrets(
initiator_nonce=initiator_nonce,
responder_nonce=responder_nonce,
remote_ephemeral_pubkey=ephem_pubkey,
auth_init_ciphertext=msg,
auth_ack_ciphertext=auth_ack_ciphertext)
# Create and register peer in peer_pool
peer = self.peer_class(remote=initiator_remote,
privkey=self.privkey,
reader=reader,
writer=writer,
aes_secret=aes_secret,
mac_secret=mac_secret,
egress_mac=egress_mac,
ingress_mac=ingress_mac,
chaindb=self.chaindb,
network_id=self.network_id)
await self.do_p2p_handshake(peer)
def _test():
"""
Create a Peer instance connected to a local geth instance and log messages exchanged with it.
Use the following command line to run geth:
./build/bin/geth -vmodule p2p=4,p2p/discv5=0,eth/*=0 \
-nodekeyhex 45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8 \
-testnet -lightserv 90
"""
import argparse
import signal
from evm.chains.ropsten import RopstenChain, ROPSTEN_GENESIS_HEADER
from evm.db.backends.memory import MemoryDB
from tests.p2p.integration_test_helpers import FakeAsyncHeaderDB
logging.basicConfig(level=logging.DEBUG,
format='%(asctime)s %(levelname)s: %(message)s')
# The default remoteid can be used if you pass nodekeyhex as above to geth.
nodekey = keys.PrivateKey(
decode_hex(
"45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8")
)
remoteid = nodekey.public_key.to_hex()
parser = argparse.ArgumentParser()
parser.add_argument('-remoteid', type=str, default=remoteid)
parser.add_argument('-light',
action='store_true',
help="Connect as a light node")
args = parser.parse_args()
peer_class = ETHPeer # type: ignore
if args.light:
peer_class = LESPeer # type: ignore
remote = Node(keys.PublicKey(decode_hex(args.remoteid)),
Address('127.0.0.1', 30303, 30303))
headerdb = FakeAsyncHeaderDB(MemoryDB())
headerdb.persist_header(ROPSTEN_GENESIS_HEADER)
network_id = RopstenChain.network_id
loop = asyncio.get_event_loop()
peer = loop.run_until_complete(
handshake(remote, ecies.generate_privkey(), peer_class, headerdb,
network_id, CancelToken("Peer test")))
async def request_stuff():
# Request some stuff from ropsten's block 2440319
# (https://ropsten.etherscan.io/block/2440319), just as a basic test.
nonlocal peer
block_hash = decode_hex(
'0x59af08ab31822c992bb3dad92ddb68d820aa4c69e9560f07081fa53f1009b152'
)
if peer_class == ETHPeer:
peer = cast(ETHPeer, peer)
peer.sub_proto.send_get_block_headers(block_hash, 1)
peer.sub_proto.send_get_block_bodies([block_hash])
peer.sub_proto.send_get_receipts([block_hash])
else:
peer = cast(LESPeer, peer)
request_id = 1
peer.sub_proto.send_get_block_headers(block_hash, 1, request_id)
peer.sub_proto.send_get_block_bodies([block_hash], request_id + 1)
peer.sub_proto.send_get_receipts(block_hash, request_id + 2)
sigint_received = asyncio.Event()
for sig in [signal.SIGINT, signal.SIGTERM]:
loop.add_signal_handler(sig, sigint_received.set)
async def exit_on_sigint():
await sigint_received.wait()
await peer.cancel()
loop.stop()
asyncio.ensure_future(exit_on_sigint())
asyncio.ensure_future(request_stuff())
asyncio.ensure_future(peer.run())
loop.run_forever()
loop.close()
def get_nodes_to_connect(self) -> Generator[Node, None, None]:
from evm.chains.ropsten import RopstenChain
from evm.chains.mainnet import MainnetChain
if self.network_id == MainnetChain.network_id:
nodes = [
Node(
keys.PublicKey(
decode_hex(
"1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082"
)), # noqa: E501
Address("52.74.57.123", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"78de8a0916848093c73790ead81d1928bec737d565119932b98c6b100d944b7a95e94f847f689fc723399d2e31129d182f7ef3863f2b4c820abbf3ab2722344d"
)), # noqa: E501
Address("191.235.84.50", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"ddd81193df80128880232fc1deb45f72746019839589eeb642d3d44efbb8b2dda2c1a46a348349964a6066f8afb016eb2a8c0f3c66f32fadf4370a236a4b5286"
)), # noqa: E501
Address("52.231.202.145", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"3f1d12044546b76342d59d4a05532c14b85aa669704bfe1f864fe079415aa2c02d743e03218e57a33fb94523adb54032871a6c51b2cc5514cb7c7e35b3ed0a99"
)), # noqa: E501
Address("13.93.211.84", 30303, 30303)),
]
elif self.network_id == RopstenChain.network_id:
# FIXME: Many of those nodes are no longer responsive and should be removed from this
# list.
nodes = [
Node(
keys.PublicKey(
decode_hex(
"60ce95dc5b6873e1c53897815496c28132fa50a1227935c58fbffc30a25bf9df68594f7bdc63b1d33c2911c96013b5b058dcfc9184a78082e9af5ace05fe5486"
)), # noqa: E501
Address("79.98.29.93", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"0d7f627a9a139c1fbff6731d6e0123561738c5155908e32c3a1eea00a3e0c3b460d97c8aea1935c19bfb4e7013651488b8d328b9c142c0b820e221fde7894253"
)), # noqa: E501
Address("58.250.0.61", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"360aeace83f0771dd671f253a023b4757e920aca3598563779d8edb2f4d4ca001b5dc2f900ec1547edcd34cfd5cf858e717647e9b5c1f88cef1934081337678b"
)), # noqa: E501
Address("34.212.25.61", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"49f9e25549aaa9d2bbbedb32bc22029833a8ce457ce54310e44ed8097082379ac94ff5319ff57da0afa91584c271d17324bc3ea3a74e01a9684fbe9a392b239d"
)), # noqa: E501
Address("34.237.139.163", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"5740300afd843ce51b2ca734e30ec690f1b61b163f67a289888757e8962f8046d46f8b6a8d2663246f0b81a75cbc7604619721567054309f15bc360490c8c4da"
)), # noqa: E501
Address("172.104.183.123", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"7f3c9e7472a28904c7b5066bce561ac230801147fb6cffae10967baf058a9fcffe03e386c55e5c1397172aef36d78b9f35b6d4f0dc831707c66530194f4867fb"
)), # noqa: E501
Address("114.242.249.161", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"8d24ff3d32b0fc70bf41cf828b98940e2ef18ab82fc37de779c206cbec88d5c11a3e3af9700953b9f5e6582f73cddd76f90fc1688992fbdf3b9216228c80654c"
)), # noqa: E501
Address("202.9.6.81", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"bbb3ad8be9684fa1d67ac057d18f7357dd236dc01a806fef6977ac9a259b352c00169d092c50475b80aed9e28eff12d2038e97971e0be3b934b366e86b59a723"
)), # noqa: E501
Address("81.169.153.213", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"a147a3adde1daddc0d86f44f1a76404914e44cee018c26d49248142d4dc8a9fb0e7dd14b5153df7e60f23b037922ae1f33b8f318844ef8d2b0453b9ab614d70d"
)), # noqa: E501
Address("72.36.89.11", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"bd2867892d879b57734d571b208bb7adc04fa412fbdfe73b89b1a0ec5b7978932cc776609e4ac7bac231049975ecb22c74988da36cbc5111d116b1edf7d44802"
)), # noqa: E501
Address("185.68.101.99", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"c2bb011038530b60b40a342705246a84e6d2d22d9f8d8d3df4ae1c7464f302396e7be7673a3971b2de16ebd66574ade262fc292b6de7715983f0f15f9c9922ea"
)), # noqa: E501
Address("36.225.32.203", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"d8714127db3c10560a2463c557bbe509c99969078159c69f9ce4f71c2cd1837bcd33db3b9c3c3e88c971b4604bbffa390a0a7f53fc37f122e2e6e0022c059dfd"
)), # noqa: E501
Address("51.15.217.106", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"efc75f109d91cdebc62f33be992ca86fce2637044d49a954a8bdceb439b1239afda32e642456e9dfd759af5b440ef4d8761b9bda887e2200001c5f3ab2614043"
)), # noqa: E501
Address("34.228.166.142", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"c8b9ec645cd7fe570bc73740579064c528771338c31610f44d160d2ae63fd00699caa163f84359ab268d4a0aed8ead66d7295be5e9c08b0ec85b0198273bae1f"
)), # noqa: E501
Address("178.62.246.6", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"7a34c02d5ef9de43475580cbb88fb492afb2858cfc45f58cf5c7088ceeded5f58e65be769b79c31c5ae1f012c99b3e9f2ea9ef11764d553544171237a691493b"
)), # noqa: E501
Address("35.227.38.243", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"bbb3ad8be9684fa1d67ac057d18f7357dd236dc01a806fef6977ac9a259b352c00169d092c50475b80aed9e28eff12d2038e97971e0be3b934b366e86b59a723"
)), # noqa: E501
Address("81.169.153.213", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"30b7ab30a01c124a6cceca36863ece12c4f5fa68e3ba9b0b51407ccc002eeed3b3102d20a88f1c1d3c3154e2449317b8ef95090e77b312d5cc39354f86d5d606"
)), # noqa: E501
Address("52.176.7.10", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"02508da84b37a1b7f19f77268e5b69acc9e9ab6989f8e5f2f8440e025e633e4277019b91884e46821414724e790994a502892144fc1333487ceb5a6ce7866a46"
)), # noqa: E501
Address("54.175.255.230", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"0eec3472a46f0b637045e41f923ce1d4a585cd83c1c7418b183c46443a0df7405d020f0a61891b2deef9de35284a0ad7d609db6d30d487dbfef72f7728d09ca9"
)), # noqa: E501
Address("181.168.193.197", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"643c31104d497e3d4cd2460ff0dbb1fb9a6140c8bb0fca66159bbf177d41aefd477091c866494efd3f1f59a0652c93ab2f7bb09034ed5ab9f2c5c6841aef8d94"
)), # noqa: E501
Address("34.198.237.7", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"88c2b24429a6f7683fbfd06874ae3f1e7c8b4a5ffb846e77c705ba02e2543789d66fc032b6606a8d8888eb6239a2abe5897ce83f78dcdcfcb027d6ea69aa6fe9"
)), # noqa: E501
Address("163.172.157.61", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"a1ef9ba5550d5fac27f7cbd4e8d20a643ad75596f307c91cd6e7f85b548b8a6bf215cca436d6ee436d6135f9fe51398f8dd4c0bd6c6a0c332ccb41880f33ec12"
)), # noqa: E501
Address("51.15.218.125", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"e80276aabb7682a4a659f4341c1199de79d91a2e500a6ee9bed16ed4ce927ba8d32ba5dea357739ffdf2c5bcc848d3064bb6f149f0b4249c1f7e53f8bf02bfc8"
)), # noqa: E501
Address("51.15.39.57", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"584c0db89b00719e9e7b1b5c32a4a8942f379f4d5d66bb69f9c7fa97fa42f64974e7b057b35eb5a63fd7973af063f9a1d32d8c60dbb4854c64cb8ab385470258"
)), # noqa: E501
Address("51.15.35.2", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"d40871fc3e11b2649700978e06acd68a24af54e603d4333faecb70926ca7df93baa0b7bf4e927fcad9a7c1c07f9b325b22f6d1730e728314d0e4e6523e5cebc2"
)), # noqa: E501
Address("51.15.132.235", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"482484b9198530ee2e00db89791823244ca41dcd372242e2e1297dd06f6d8dd357603960c5ad9cc8dc15fcdf0e4edd06b7ad7db590e67a0b54f798c26581ebd7"
)), # noqa: E501
Address("51.15.75.138", 30303, 30303)),
]
else:
raise ValueError("Unknown network_id: {}".format(self.network_id))
random.shuffle(nodes)
for node in nodes:
yield node
async def consume_datagram(self) -> None:
datagram, (ip_address, port) = await self.socket.recvfrom(
constants.DISCOVERY_DATAGRAM_BUFFER_SIZE)
address = Address(ip_address, port)
self.logger.debug2("Received datagram from %s", address)
self.receive(address, datagram)
def _test() -> None:
import argparse
import signal
from evm.db.backends.memory import MemoryDB
from evm.chains.ropsten import RopstenChain, ROPSTEN_GENESIS_HEADER
from p2p import ecies
from p2p.peer import ETHPeer
from trinity.utils.chains import load_nodekey
from tests.p2p.integration_test_helpers import FakeAsyncHeaderDB
from tests.p2p.integration_test_helpers import FakeAsyncChainDB, FakeAsyncRopstenChain
parser = argparse.ArgumentParser()
parser.add_argument('-debug', action="store_true")
parser.add_argument('-address', type=str, required=True)
parser.add_argument('-bootnodes', type=str, default=[])
parser.add_argument('-nodekey', type=str)
args = parser.parse_args()
logging.basicConfig(level=logging.INFO,
format='%(asctime)s %(levelname)s: %(message)s',
datefmt='%H:%M:%S')
log_level = logging.INFO
if args.debug:
log_level = logging.DEBUG
logging.getLogger('p2p.server.Server').setLevel(log_level)
loop = asyncio.get_event_loop()
db = MemoryDB()
headerdb = FakeAsyncHeaderDB(db)
chaindb = FakeAsyncChainDB(db)
chaindb.persist_header(ROPSTEN_GENESIS_HEADER)
chain = FakeAsyncRopstenChain(chaindb)
# NOTE: Since we may create a different priv/pub key pair every time we run this, remote nodes
# may try to establish a connection using the pubkey from one of our previous runs, which will
# result in lots of DecryptionErrors in receive_handshake().
if args.nodekey:
privkey = load_nodekey(args.nodekey)
else:
privkey = ecies.generate_privkey()
ip, port = args.address.split(':')
address = Address(ip, int(port))
if args.bootnodes:
bootstrap_nodes = args.bootnodes.split(',')
else:
bootstrap_nodes = []
server = Server(
privkey,
address,
chain,
chaindb,
headerdb,
db,
RopstenChain.network_id,
peer_class=ETHPeer,
bootstrap_nodes=bootstrap_nodes,
)
sigint_received = asyncio.Event()
for sig in [signal.SIGINT, signal.SIGTERM]:
loop.add_signal_handler(sig, sigint_received.set)
async def exit_on_sigint():
await sigint_received.wait()
await server.cancel()
loop.stop()
loop.set_debug(True)
asyncio.ensure_future(exit_on_sigint())
asyncio.ensure_future(server.run())
loop.run_forever()
loop.close()
def get_nodes_to_connect(self) -> Generator[Node, None, None]:
from evm.chains.ropsten import RopstenChain
from evm.chains.mainnet import MainnetChain
if self.network_id == MainnetChain.network_id:
nodes = [
Node(
keys.PublicKey(
decode_hex(
"1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082"
)), # noqa: E501
Address("52.74.57.123", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"78de8a0916848093c73790ead81d1928bec737d565119932b98c6b100d944b7a95e94f847f689fc723399d2e31129d182f7ef3863f2b4c820abbf3ab2722344d"
)), # noqa: E501
Address("191.235.84.50", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"ddd81193df80128880232fc1deb45f72746019839589eeb642d3d44efbb8b2dda2c1a46a348349964a6066f8afb016eb2a8c0f3c66f32fadf4370a236a4b5286"
)), # noqa: E501
Address("52.231.202.145", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"3f1d12044546b76342d59d4a05532c14b85aa669704bfe1f864fe079415aa2c02d743e03218e57a33fb94523adb54032871a6c51b2cc5514cb7c7e35b3ed0a99"
)), # noqa: E501
Address("13.93.211.84", 30303, 30303)),
]
elif self.network_id == RopstenChain.network_id:
nodes = [
Node(
keys.PublicKey(
decode_hex(
"c8b9ec645cd7fe570bc73740579064c528771338c31610f44d160d2ae63fd00699caa163f84359ab268d4a0aed8ead66d7295be5e9c08b0ec85b0198273bae1f"
)), # noqa: E501
Address("178.62.246.6", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"7a34c02d5ef9de43475580cbb88fb492afb2858cfc45f58cf5c7088ceeded5f58e65be769b79c31c5ae1f012c99b3e9f2ea9ef11764d553544171237a691493b"
)), # noqa: E501
Address("35.227.38.243", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"bbb3ad8be9684fa1d67ac057d18f7357dd236dc01a806fef6977ac9a259b352c00169d092c50475b80aed9e28eff12d2038e97971e0be3b934b366e86b59a723"
)), # noqa: E501
Address("81.169.153.213", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"30b7ab30a01c124a6cceca36863ece12c4f5fa68e3ba9b0b51407ccc002eeed3b3102d20a88f1c1d3c3154e2449317b8ef95090e77b312d5cc39354f86d5d606"
)), # noqa: E501
Address("52.176.7.10", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"02508da84b37a1b7f19f77268e5b69acc9e9ab6989f8e5f2f8440e025e633e4277019b91884e46821414724e790994a502892144fc1333487ceb5a6ce7866a46"
)), # noqa: E501
Address("54.175.255.230", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"0eec3472a46f0b637045e41f923ce1d4a585cd83c1c7418b183c46443a0df7405d020f0a61891b2deef9de35284a0ad7d609db6d30d487dbfef72f7728d09ca9"
)), # noqa: E501
Address("181.168.193.197", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"643c31104d497e3d4cd2460ff0dbb1fb9a6140c8bb0fca66159bbf177d41aefd477091c866494efd3f1f59a0652c93ab2f7bb09034ed5ab9f2c5c6841aef8d94"
)), # noqa: E501
Address("34.198.237.7", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"88c2b24429a6f7683fbfd06874ae3f1e7c8b4a5ffb846e77c705ba02e2543789d66fc032b6606a8d8888eb6239a2abe5897ce83f78dcdcfcb027d6ea69aa6fe9"
)), # noqa: E501
Address("163.172.157.61", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"a1ef9ba5550d5fac27f7cbd4e8d20a643ad75596f307c91cd6e7f85b548b8a6bf215cca436d6ee436d6135f9fe51398f8dd4c0bd6c6a0c332ccb41880f33ec12"
)), # noqa: E501
Address("51.15.218.125", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"e80276aabb7682a4a659f4341c1199de79d91a2e500a6ee9bed16ed4ce927ba8d32ba5dea357739ffdf2c5bcc848d3064bb6f149f0b4249c1f7e53f8bf02bfc8"
)), # noqa: E501
Address("51.15.39.57", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"584c0db89b00719e9e7b1b5c32a4a8942f379f4d5d66bb69f9c7fa97fa42f64974e7b057b35eb5a63fd7973af063f9a1d32d8c60dbb4854c64cb8ab385470258"
)), # noqa: E501
Address("51.15.35.2", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"d40871fc3e11b2649700978e06acd68a24af54e603d4333faecb70926ca7df93baa0b7bf4e927fcad9a7c1c07f9b325b22f6d1730e728314d0e4e6523e5cebc2"
)), # noqa: E501
Address("51.15.132.235", 30303, 30303)),
Node(
keys.PublicKey(
decode_hex(
"482484b9198530ee2e00db89791823244ca41dcd372242e2e1297dd06f6d8dd357603960c5ad9cc8dc15fcdf0e4edd06b7ad7db590e67a0b54f798c26581ebd7"
)), # noqa: E501
Address("51.15.75.138", 30303, 30303)),
]
else:
raise ValueError("Unknown network_id: {}".format(self.network_id))
random.shuffle(nodes)
for node in nodes:
yield node
def get_nodes_to_connect(self) -> Generator[Node, None, None]:
from evm.chains.ropsten import RopstenChain
from evm.chains.mainnet import MainnetChain
if self.network_id == MainnetChain.network_id:
yield Node(
keys.PublicKey(
decode_hex(
"1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082"
)), # noqa: E501
Address("52.74.57.123", 30303, 30303))
yield Node(
keys.PublicKey(
decode_hex(
"78de8a0916848093c73790ead81d1928bec737d565119932b98c6b100d944b7a95e94f847f689fc723399d2e31129d182f7ef3863f2b4c820abbf3ab2722344d"
)), # noqa: E501
Address("191.235.84.50", 30303, 30303))
yield Node(
keys.PublicKey(
decode_hex(
"ddd81193df80128880232fc1deb45f72746019839589eeb642d3d44efbb8b2dda2c1a46a348349964a6066f8afb016eb2a8c0f3c66f32fadf4370a236a4b5286"
)), # noqa: E501
Address("52.231.202.145", 30303, 30303))
yield Node(
keys.PublicKey(
decode_hex(
"3f1d12044546b76342d59d4a05532c14b85aa669704bfe1f864fe079415aa2c02d743e03218e57a33fb94523adb54032871a6c51b2cc5514cb7c7e35b3ed0a99"
)), # noqa: E501
Address("13.93.211.84", 30303, 30303))
elif self.network_id == RopstenChain.network_id:
yield Node(
keys.PublicKey(
decode_hex(
"88c2b24429a6f7683fbfd06874ae3f1e7c8b4a5ffb846e77c705ba02e2543789d66fc032b6606a8d8888eb6239a2abe5897ce83f78dcdcfcb027d6ea69aa6fe9"
)), # noqa: E501
Address("163.172.157.61", 30303, 30303))
yield Node(
keys.PublicKey(
decode_hex(
"a1ef9ba5550d5fac27f7cbd4e8d20a643ad75596f307c91cd6e7f85b548b8a6bf215cca436d6ee436d6135f9fe51398f8dd4c0bd6c6a0c332ccb41880f33ec12"
)), # noqa: E501
Address("51.15.218.125", 30303, 30303))
yield Node(
keys.PublicKey(
decode_hex(
"e80276aabb7682a4a659f4341c1199de79d91a2e500a6ee9bed16ed4ce927ba8d32ba5dea357739ffdf2c5bcc848d3064bb6f149f0b4249c1f7e53f8bf02bfc8"
)), # noqa: E501
Address("51.15.39.57", 30303, 30303))
yield Node(
keys.PublicKey(
decode_hex(
"584c0db89b00719e9e7b1b5c32a4a8942f379f4d5d66bb69f9c7fa97fa42f64974e7b057b35eb5a63fd7973af063f9a1d32d8c60dbb4854c64cb8ab385470258"
)), # noqa: E501
Address("51.15.35.2", 30303, 30303))
yield Node(
keys.PublicKey(
decode_hex(
"d40871fc3e11b2649700978e06acd68a24af54e603d4333faecb70926ca7df93baa0b7bf4e927fcad9a7c1c07f9b325b22f6d1730e728314d0e4e6523e5cebc2"
)), # noqa: E501
Address("51.15.132.235", 30303, 30303))
yield Node(
keys.PublicKey(
decode_hex(
"482484b9198530ee2e00db89791823244ca41dcd372242e2e1297dd06f6d8dd357603960c5ad9cc8dc15fcdf0e4edd06b7ad7db590e67a0b54f798c26581ebd7"
)), # noqa: E501
Address("51.15.75.138", 30303, 30303))
else:
raise ValueError("Unknown network_id: {}".format(self.network_id))
def get_nodes_to_connect(self) -> Generator[Node, None, None]:
from evm.chains.ropsten import RopstenChain
from evm.chains.mainnet import MainnetChain
if self.network_id == MainnetChain.network_id:
nodes = [
Node(keys.PublicKey(decode_hex("1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082")), # noqa: E501
Address("52.74.57.123", 30303, 30303)),
Node(keys.PublicKey(decode_hex("78de8a0916848093c73790ead81d1928bec737d565119932b98c6b100d944b7a95e94f847f689fc723399d2e31129d182f7ef3863f2b4c820abbf3ab2722344d")), # noqa: E501
Address("191.235.84.50", 30303, 30303)),
Node(keys.PublicKey(decode_hex("ddd81193df80128880232fc1deb45f72746019839589eeb642d3d44efbb8b2dda2c1a46a348349964a6066f8afb016eb2a8c0f3c66f32fadf4370a236a4b5286")), # noqa: E501
Address("52.231.202.145", 30303, 30303)),
Node(keys.PublicKey(decode_hex("3f1d12044546b76342d59d4a05532c14b85aa669704bfe1f864fe079415aa2c02d743e03218e57a33fb94523adb54032871a6c51b2cc5514cb7c7e35b3ed0a99")), # noqa: E501
Address("13.93.211.84", 30303, 30303)),
]
elif self.network_id == RopstenChain.network_id:
nodes = [
Node(keys.PublicKey(decode_hex("60ce95dc5b6873e1c53897815496c28132fa50a1227935c58fbffc30a25bf9df68594f7bdc63b1d33c2911c96013b5b058dcfc9184a78082e9af5ace05fe5486")), # noqa: E501
Address("79.98.29.93", 30303, 30303)),
Node(keys.PublicKey(decode_hex("a147a3adde1daddc0d86f44f1a76404914e44cee018c26d49248142d4dc8a9fb0e7dd14b5153df7e60f23b037922ae1f33b8f318844ef8d2b0453b9ab614d70d")), # noqa: E501
Address("72.36.89.11", 30303, 30303)),
Node(keys.PublicKey(decode_hex("d8714127db3c10560a2463c557bbe509c99969078159c69f9ce4f71c2cd1837bcd33db3b9c3c3e88c971b4604bbffa390a0a7f53fc37f122e2e6e0022c059dfd")), # noqa: E501
Address("51.15.217.106", 30303, 30303)),
Node(keys.PublicKey(decode_hex("efc75f109d91cdebc62f33be992ca86fce2637044d49a954a8bdceb439b1239afda32e642456e9dfd759af5b440ef4d8761b9bda887e2200001c5f3ab2614043")), # noqa: E501
Address("34.228.166.142", 30303, 30303)),
Node(keys.PublicKey(decode_hex("c8b9ec645cd7fe570bc73740579064c528771338c31610f44d160d2ae63fd00699caa163f84359ab268d4a0aed8ead66d7295be5e9c08b0ec85b0198273bae1f")), # noqa: E501
Address("178.62.246.6", 30303, 30303)),
Node(keys.PublicKey(decode_hex("7a34c02d5ef9de43475580cbb88fb492afb2858cfc45f58cf5c7088ceeded5f58e65be769b79c31c5ae1f012c99b3e9f2ea9ef11764d553544171237a691493b")), # noqa: E501
Address("35.227.38.243", 30303, 30303)),
Node(keys.PublicKey(decode_hex("bbb3ad8be9684fa1d67ac057d18f7357dd236dc01a806fef6977ac9a259b352c00169d092c50475b80aed9e28eff12d2038e97971e0be3b934b366e86b59a723")), # noqa: E501
Address("81.169.153.213", 30303, 30303)),
Node(keys.PublicKey(decode_hex("30b7ab30a01c124a6cceca36863ece12c4f5fa68e3ba9b0b51407ccc002eeed3b3102d20a88f1c1d3c3154e2449317b8ef95090e77b312d5cc39354f86d5d606")), # noqa: E501
Address("52.176.7.10", 30303, 30303)),
Node(keys.PublicKey(decode_hex("02508da84b37a1b7f19f77268e5b69acc9e9ab6989f8e5f2f8440e025e633e4277019b91884e46821414724e790994a502892144fc1333487ceb5a6ce7866a46")), # noqa: E501
Address("54.175.255.230", 30303, 30303)),
Node(keys.PublicKey(decode_hex("0eec3472a46f0b637045e41f923ce1d4a585cd83c1c7418b183c46443a0df7405d020f0a61891b2deef9de35284a0ad7d609db6d30d487dbfef72f7728d09ca9")), # noqa: E501
Address("181.168.193.197", 30303, 30303)),
Node(keys.PublicKey(decode_hex("643c31104d497e3d4cd2460ff0dbb1fb9a6140c8bb0fca66159bbf177d41aefd477091c866494efd3f1f59a0652c93ab2f7bb09034ed5ab9f2c5c6841aef8d94")), # noqa: E501
Address("34.198.237.7", 30303, 30303)),
]
else:
raise ValueError("Unknown network_id: {}".format(self.network_id))
random.shuffle(nodes)
for node in nodes:
yield node
async def _receive_handshake(self, reader: asyncio.StreamReader,
writer: asyncio.StreamWriter) -> None:
msg = await self.wait_first(reader.read(ENCRYPTED_AUTH_MSG_LEN),
timeout=REPLY_TIMEOUT)
ip, socket, *_ = writer.get_extra_info("peername")
remote_address = Address(ip, socket)
self.logger.debug("Receiving handshake from %s", remote_address)
try:
ephem_pubkey, initiator_nonce, initiator_pubkey = decode_authentication(
msg, self.privkey)
except DecryptionError:
# Try to decode as EIP8
msg_size = big_endian_to_int(msg[:2])
remaining_bytes = msg_size - ENCRYPTED_AUTH_MSG_LEN + 2
msg += await self.wait_first(reader.read(remaining_bytes),
timeout=REPLY_TIMEOUT)
try:
ephem_pubkey, initiator_nonce, initiator_pubkey = decode_authentication(
msg, self.privkey)
except DecryptionError as e:
self.logger.debug("Failed to decrypt handshake: %s", e)
return
# Create `HandshakeResponder(remote: kademlia.Node, privkey: datatypes.PrivateKey)` instance
initiator_remote = Node(initiator_pubkey, remote_address)
responder = HandshakeResponder(initiator_remote, self.privkey,
self.cancel_token)
# Call `HandshakeResponder.create_auth_ack_message(nonce: bytes)` to create the reply
responder_nonce = secrets.token_bytes(HASH_LEN)
auth_ack_msg = responder.create_auth_ack_message(nonce=responder_nonce)
auth_ack_ciphertext = responder.encrypt_auth_ack_message(auth_ack_msg)
# Use the `writer` to send the reply to the remote
writer.write(auth_ack_ciphertext)
await writer.drain()
# Call `HandshakeResponder.derive_shared_secrets()` and use return values to create `Peer`
aes_secret, mac_secret, egress_mac, ingress_mac = responder.derive_secrets(
initiator_nonce=initiator_nonce,
responder_nonce=responder_nonce,
remote_ephemeral_pubkey=ephem_pubkey,
auth_init_ciphertext=msg,
auth_ack_ciphertext=auth_ack_ciphertext)
# Create and register peer in peer_pool
peer = self.peer_class(
remote=initiator_remote,
privkey=self.privkey,
reader=reader,
writer=writer,
aes_secret=aes_secret,
mac_secret=mac_secret,
egress_mac=egress_mac,
ingress_mac=ingress_mac,
headerdb=self.headerdb,
network_id=self.network_id,
inbound=True,
)
if self.peer_pool.is_full:
peer.disconnect(DisconnectReason.too_many_peers)
else:
await self.do_handshake(peer)
def datagram_received(self, data: Union[bytes, Text], addr: Tuple[str, int]) -> None:
ip_address, udp_port = addr
address = Address(ip_address, udp_port)
self.receive(address, cast(bytes, data))
