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https://github.com/varun-r-mallya/py-libp2p.git
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51 lines
1.3 KiB
Python
51 lines
1.3 KiB
Python
import logging
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import secrets
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import multiaddr
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import trio
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from libp2p import (
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new_host,
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)
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from libp2p.abc import PeerInfo
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from libp2p.crypto.secp256k1 import (
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create_new_key_pair,
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)
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from libp2p.discovery.events.peerDiscovery import peerDiscovery
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logger = logging.getLogger("libp2p.example.discovery.mdns")
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logger.setLevel(logging.INFO)
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handler = logging.StreamHandler()
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handler.setFormatter(
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logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
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)
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logger.addHandler(handler)
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def onPeerDiscovery(peerinfo: PeerInfo):
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logger.info(f"Discovered: {peerinfo.peer_id}")
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async def main():
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# Generate a key pair for the host
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secret = secrets.token_bytes(32)
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key_pair = create_new_key_pair(secret)
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# Listen on a random TCP port
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listen_addr = multiaddr.Multiaddr("/ip4/0.0.0.0/tcp/0")
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peerDiscovery.register_peer_discovered_handler(onPeerDiscovery)
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# Enable mDNS discovery
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logger.info("Starting peer Discovery")
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host = new_host(key_pair=key_pair, enable_mDNS=True)
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await trio.sleep(5)
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async with host.run(listen_addrs=[listen_addr]):
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try:
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while True:
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await trio.sleep(100)
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except KeyboardInterrupt:
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logger.info("Exiting...")
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if __name__ == "__main__":
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trio.run(main)
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