py-libp2p/tests/interop/utils.py

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import asyncio
from typing import Union
from multiaddr import Multiaddr
from libp2p.host.host_interface import IHost
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from libp2p.peer.id import ID
from libp2p.peer.peerinfo import PeerInfo
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from .daemon import Daemon
TDaemonOrHost = Union[IHost, Daemon]
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def _get_peer_info(node: TDaemonOrHost) -> PeerInfo:
peer_info: PeerInfo
if isinstance(node, Daemon):
peer_info = node.peer_info
else: # isinstance(node, IHost)
peer_id = node.get_id()
maddrs = [
node.get_addrs()[0].decapsulate(Multiaddr(f"/p2p/{peer_id.to_string()}"))
]
peer_info = PeerInfo(peer_id, maddrs)
return peer_info
async def _is_peer(peer_id: ID, node: TDaemonOrHost) -> bool:
if isinstance(node, Daemon):
pinfos = await node.control.list_peers()
peers = tuple([pinfo.peer_id for pinfo in pinfos])
return peer_id in peers
else: # isinstance(node, IHost)
return peer_id in node.get_network().connections
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async def connect(a: TDaemonOrHost, b: TDaemonOrHost) -> None:
# Type check
err_msg = (
f"Type of type(a)={type(a)} or type(b)={type(b)} is wrong."
"Should be either `IHost` or `Daemon`"
)
assert all(
[isinstance(node, IHost) or isinstance(node, Daemon) for node in (a, b)]
), err_msg
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b_peer_info = _get_peer_info(b)
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if isinstance(a, Daemon):
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await a.control.connect(b_peer_info.peer_id, b_peer_info.addrs)
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else: # isinstance(b, IHost)
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await a.connect(b_peer_info)
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# Allow additional sleep for both side to establish the connection.
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await asyncio.sleep(0.1)
a_peer_info = _get_peer_info(a)
assert await _is_peer(b_peer_info.peer_id, a)
assert await _is_peer(a_peer_info.peer_id, b)