241 lines
7.8 KiB
Python
241 lines
7.8 KiB
Python
import asyncio
|
|
from contextlib import asynccontextmanager
|
|
from typing import Any, AsyncIterator, Dict, Tuple, cast
|
|
|
|
import factory
|
|
|
|
from libp2p import generate_new_rsa_identity, generate_peer_id_from
|
|
from libp2p.crypto.keys import KeyPair
|
|
from libp2p.host.basic_host import BasicHost
|
|
from libp2p.network.connection.swarm_connection import SwarmConn
|
|
from libp2p.network.stream.net_stream_interface import INetStream
|
|
from libp2p.network.swarm import Swarm
|
|
from libp2p.peer.id import ID
|
|
from libp2p.peer.peerstore import PeerStore
|
|
from libp2p.pubsub.floodsub import FloodSub
|
|
from libp2p.pubsub.gossipsub import GossipSub
|
|
from libp2p.pubsub.pubsub import Pubsub
|
|
from libp2p.security.base_transport import BaseSecureTransport
|
|
from libp2p.security.insecure.transport import PLAINTEXT_PROTOCOL_ID, InsecureTransport
|
|
import libp2p.security.secio.transport as secio
|
|
from libp2p.stream_muxer.mplex.mplex import MPLEX_PROTOCOL_ID, Mplex
|
|
from libp2p.stream_muxer.mplex.mplex_stream import MplexStream
|
|
from libp2p.transport.tcp.tcp import TCP
|
|
from libp2p.transport.typing import TMuxerOptions
|
|
from libp2p.transport.upgrader import TransportUpgrader
|
|
from libp2p.typing import TProtocol
|
|
|
|
from .constants import (
|
|
FLOODSUB_PROTOCOL_ID,
|
|
GOSSIPSUB_PARAMS,
|
|
GOSSIPSUB_PROTOCOL_ID,
|
|
LISTEN_MADDR,
|
|
)
|
|
from .utils import connect, connect_swarm
|
|
|
|
|
|
def initialize_peerstore_with_our_keypair(self_id: ID, key_pair: KeyPair) -> PeerStore:
|
|
peer_store = PeerStore()
|
|
peer_store.add_key_pair(self_id, key_pair)
|
|
return peer_store
|
|
|
|
|
|
def security_transport_factory(
|
|
is_secure: bool, key_pair: KeyPair
|
|
) -> Dict[TProtocol, BaseSecureTransport]:
|
|
if not is_secure:
|
|
return {PLAINTEXT_PROTOCOL_ID: InsecureTransport(key_pair)}
|
|
else:
|
|
return {secio.ID: secio.Transport(key_pair)}
|
|
|
|
|
|
class SwarmFactory(factory.Factory):
|
|
class Meta:
|
|
model = Swarm
|
|
|
|
class Params:
|
|
is_secure = False
|
|
key_pair = factory.LazyFunction(generate_new_rsa_identity)
|
|
muxer_opt = {MPLEX_PROTOCOL_ID: Mplex}
|
|
|
|
peer_id = factory.LazyAttribute(lambda o: generate_peer_id_from(o.key_pair))
|
|
peerstore = factory.LazyAttribute(
|
|
lambda o: initialize_peerstore_with_our_keypair(o.peer_id, o.key_pair)
|
|
)
|
|
upgrader = factory.LazyAttribute(
|
|
lambda o: TransportUpgrader(
|
|
security_transport_factory(o.is_secure, o.key_pair), o.muxer_opt
|
|
)
|
|
)
|
|
transport = factory.LazyFunction(TCP)
|
|
|
|
@classmethod
|
|
async def create_and_listen(
|
|
cls, is_secure: bool, key_pair: KeyPair = None, muxer_opt: TMuxerOptions = None
|
|
) -> Swarm:
|
|
# `factory.Factory.__init__` does *not* prepare a *default value* if we pass
|
|
# an argument explicitly with `None`. If an argument is `None`, we don't pass it to
|
|
# `factory.Factory.__init__`, in order to let the function initialize it.
|
|
optional_kwargs: Dict[str, Any] = {}
|
|
if key_pair is not None:
|
|
optional_kwargs["key_pair"] = key_pair
|
|
if muxer_opt is not None:
|
|
optional_kwargs["muxer_opt"] = muxer_opt
|
|
swarm = cls(is_secure=is_secure, **optional_kwargs)
|
|
await swarm.listen(LISTEN_MADDR)
|
|
return swarm
|
|
|
|
@classmethod
|
|
async def create_batch_and_listen(
|
|
cls, is_secure: bool, number: int, muxer_opt: TMuxerOptions = None
|
|
) -> Tuple[Swarm, ...]:
|
|
# Ignore typing since we are removing asyncio soon
|
|
return await asyncio.gather( # type: ignore
|
|
*[
|
|
cls.create_and_listen(is_secure=is_secure, muxer_opt=muxer_opt)
|
|
for _ in range(number)
|
|
]
|
|
)
|
|
|
|
|
|
class HostFactory(factory.Factory):
|
|
class Meta:
|
|
model = BasicHost
|
|
|
|
class Params:
|
|
is_secure = False
|
|
key_pair = factory.LazyFunction(generate_new_rsa_identity)
|
|
|
|
network = factory.LazyAttribute(
|
|
lambda o: SwarmFactory(is_secure=o.is_secure, key_pair=o.key_pair)
|
|
)
|
|
|
|
@classmethod
|
|
async def create_batch_and_listen(
|
|
cls, is_secure: bool, number: int
|
|
) -> Tuple[BasicHost, ...]:
|
|
key_pairs = [generate_new_rsa_identity() for _ in range(number)]
|
|
swarms = await asyncio.gather(
|
|
*[
|
|
SwarmFactory.create_and_listen(is_secure, key_pair)
|
|
for key_pair in key_pairs
|
|
]
|
|
)
|
|
return tuple(BasicHost(swarm) for swarm in swarms)
|
|
|
|
|
|
class FloodsubFactory(factory.Factory):
|
|
class Meta:
|
|
model = FloodSub
|
|
|
|
protocols = (FLOODSUB_PROTOCOL_ID,)
|
|
|
|
|
|
class GossipsubFactory(factory.Factory):
|
|
class Meta:
|
|
model = GossipSub
|
|
|
|
protocols = (GOSSIPSUB_PROTOCOL_ID,)
|
|
degree = GOSSIPSUB_PARAMS.degree
|
|
degree_low = GOSSIPSUB_PARAMS.degree_low
|
|
degree_high = GOSSIPSUB_PARAMS.degree_high
|
|
time_to_live = GOSSIPSUB_PARAMS.time_to_live
|
|
gossip_window = GOSSIPSUB_PARAMS.gossip_window
|
|
gossip_history = GOSSIPSUB_PARAMS.gossip_history
|
|
heartbeat_initial_delay = GOSSIPSUB_PARAMS.heartbeat_initial_delay
|
|
heartbeat_interval = GOSSIPSUB_PARAMS.heartbeat_interval
|
|
|
|
|
|
class PubsubFactory(factory.Factory):
|
|
class Meta:
|
|
model = Pubsub
|
|
|
|
host = factory.SubFactory(HostFactory)
|
|
router = None
|
|
my_id = factory.LazyAttribute(lambda obj: obj.host.get_id())
|
|
cache_size = None
|
|
strict_signing = False
|
|
|
|
|
|
async def swarm_pair_factory(
|
|
is_secure: bool, muxer_opt: TMuxerOptions = None
|
|
) -> Tuple[Swarm, Swarm]:
|
|
swarms = await SwarmFactory.create_batch_and_listen(
|
|
is_secure, 2, muxer_opt=muxer_opt
|
|
)
|
|
await connect_swarm(swarms[0], swarms[1])
|
|
return swarms[0], swarms[1]
|
|
|
|
|
|
async def host_pair_factory(is_secure: bool) -> Tuple[BasicHost, BasicHost]:
|
|
hosts = await HostFactory.create_batch_and_listen(is_secure, 2)
|
|
await connect(hosts[0], hosts[1])
|
|
return hosts[0], hosts[1]
|
|
|
|
|
|
@asynccontextmanager
|
|
async def pair_of_connected_hosts(
|
|
is_secure: bool = True
|
|
) -> AsyncIterator[Tuple[BasicHost, BasicHost]]:
|
|
a, b = await host_pair_factory(is_secure)
|
|
yield a, b
|
|
close_tasks = (a.close(), b.close())
|
|
await asyncio.gather(*close_tasks)
|
|
|
|
|
|
async def swarm_conn_pair_factory(
|
|
is_secure: bool, muxer_opt: TMuxerOptions = None
|
|
) -> Tuple[SwarmConn, Swarm, SwarmConn, Swarm]:
|
|
swarms = await swarm_pair_factory(is_secure)
|
|
conn_0 = swarms[0].connections[swarms[1].get_peer_id()]
|
|
conn_1 = swarms[1].connections[swarms[0].get_peer_id()]
|
|
return cast(SwarmConn, conn_0), swarms[0], cast(SwarmConn, conn_1), swarms[1]
|
|
|
|
|
|
async def mplex_conn_pair_factory(is_secure: bool) -> Tuple[Mplex, Swarm, Mplex, Swarm]:
|
|
muxer_opt = {MPLEX_PROTOCOL_ID: Mplex}
|
|
conn_0, swarm_0, conn_1, swarm_1 = await swarm_conn_pair_factory(
|
|
is_secure, muxer_opt=muxer_opt
|
|
)
|
|
return (
|
|
cast(Mplex, conn_0.muxed_conn),
|
|
swarm_0,
|
|
cast(Mplex, conn_1.muxed_conn),
|
|
swarm_1,
|
|
)
|
|
|
|
|
|
async def mplex_stream_pair_factory(
|
|
is_secure: bool
|
|
) -> Tuple[MplexStream, Swarm, MplexStream, Swarm]:
|
|
mplex_conn_0, swarm_0, mplex_conn_1, swarm_1 = await mplex_conn_pair_factory(
|
|
is_secure
|
|
)
|
|
stream_0 = await mplex_conn_0.open_stream()
|
|
await asyncio.sleep(0.01)
|
|
stream_1: MplexStream
|
|
async with mplex_conn_1.streams_lock:
|
|
if len(mplex_conn_1.streams) != 1:
|
|
raise Exception("Mplex should not have any stream upon connection")
|
|
stream_1 = tuple(mplex_conn_1.streams.values())[0]
|
|
return cast(MplexStream, stream_0), swarm_0, stream_1, swarm_1
|
|
|
|
|
|
async def net_stream_pair_factory(
|
|
is_secure: bool
|
|
) -> Tuple[INetStream, BasicHost, INetStream, BasicHost]:
|
|
protocol_id = TProtocol("/example/id/1")
|
|
|
|
stream_1: INetStream
|
|
|
|
# Just a proxy, we only care about the stream
|
|
def handler(stream: INetStream) -> None:
|
|
nonlocal stream_1
|
|
stream_1 = stream
|
|
|
|
host_0, host_1 = await host_pair_factory(is_secure)
|
|
host_1.set_stream_handler(protocol_id, handler)
|
|
|
|
stream_0 = await host_0.new_stream(host_1.get_id(), [protocol_id])
|
|
return stream_0, host_0, stream_1, host_1
|