mirror of
https://github.com/varun-r-mallya/py-libp2p.git
synced 2025-12-31 20:36:24 +00:00
70 lines
2.4 KiB
Python
70 lines
2.4 KiB
Python
import logging
|
|
|
|
from multiaddr import Multiaddr
|
|
|
|
from libp2p.abc import INetworkService
|
|
from libp2p.discovery.events.peerDiscovery import peerDiscovery
|
|
from libp2p.peer.peerinfo import info_from_p2p_addr
|
|
|
|
logger = logging.getLogger("libp2p.discovery.bootstrap")
|
|
|
|
|
|
class BootstrapDiscovery:
|
|
"""
|
|
Bootstrap-based peer discovery for py-libp2p.
|
|
Connects to predefined bootstrap peers and adds them to peerstore.
|
|
"""
|
|
|
|
def __init__(self, swarm: INetworkService, bootstrap_addrs: list[str]):
|
|
self.swarm = swarm
|
|
self.peerstore = swarm.peerstore
|
|
self.bootstrap_addrs = bootstrap_addrs or []
|
|
self.discovered_peers: set[str] = set()
|
|
|
|
def start(self) -> None:
|
|
"""Process bootstrap addresses and emit peer discovery events."""
|
|
logger.debug(
|
|
f"Starting bootstrap discovery with "
|
|
f"{len(self.bootstrap_addrs)} bootstrap addresses"
|
|
)
|
|
|
|
for addr_str in self.bootstrap_addrs:
|
|
try:
|
|
self._process_bootstrap_addr(addr_str)
|
|
except Exception as e:
|
|
logger.warning(f"Failed to process bootstrap address {addr_str}: {e}")
|
|
|
|
def stop(self) -> None:
|
|
"""Clean up bootstrap discovery resources."""
|
|
logger.debug("Stopping bootstrap discovery")
|
|
self.discovered_peers.clear()
|
|
|
|
def _process_bootstrap_addr(self, addr_str: str) -> None:
|
|
"""Convert string address to PeerInfo and add to peerstore."""
|
|
# Convert string to Multiaddr
|
|
multiaddr = Multiaddr(addr_str)
|
|
|
|
# Extract peer info from multiaddr
|
|
peer_info = info_from_p2p_addr(multiaddr)
|
|
|
|
# Skip if it's our own peer
|
|
if peer_info.peer_id == self.swarm.get_peer_id():
|
|
logger.debug(f"Skipping own peer ID: {peer_info.peer_id}")
|
|
return
|
|
|
|
# Skip if already discovered
|
|
if str(peer_info.peer_id) in self.discovered_peers:
|
|
logger.debug(f"Peer already discovered: {peer_info.peer_id}")
|
|
return
|
|
|
|
# Add to peerstore with TTL (using same pattern as mDNS)
|
|
self.peerstore.add_addrs(peer_info.peer_id, peer_info.addrs, 10)
|
|
|
|
# Track discovered peer
|
|
self.discovered_peers.add(str(peer_info.peer_id))
|
|
|
|
# Emit peer discovery event
|
|
peerDiscovery.emit_peer_discovered(peer_info)
|
|
|
|
logger.info(f"Discovered bootstrap peer: {peer_info.peer_id}")
|