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// Copyright 2018 Parity Technologies (UK) Ltd.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#![doc = include_str!("../README.md")]
use futures::StreamExt;
use libp2p::{core::multiaddr::Multiaddr, identify, noise, swarm::SwarmEvent, tcp, yamux};
use std::{error::Error, time::Duration};
use tracing_subscriber::EnvFilter;
#[async_std::main]
async fn main() -> Result<(), Box<dyn Error>> {
let _ = tracing_subscriber::fmt()
.with_env_filter(EnvFilter::from_default_env())
.try_init();
let mut swarm = libp2p::SwarmBuilder::with_new_identity()
.with_async_std()
.with_tcp(
tcp::Config::default(),
noise::Config::new,
yamux::Config::default,
)?
.with_behaviour(|key| {
identify::Behaviour::new(identify::Config::new(
"/ipfs/id/1.0.0".to_string(),
key.public(),
))
})?
.with_swarm_config(|c| c.with_idle_connection_timeout(Duration::from_secs(60)))
.build();
// Tell the swarm to listen on all interfaces and a random, OS-assigned
// port.
swarm.listen_on("/ip4/0.0.0.0/tcp/0".parse()?)?;
// Dial the peer identified by the multi-address given as the second
// command-line argument, if any.
if let Some(addr) = std::env::args().nth(1) {
let remote: Multiaddr = addr.parse()?;
swarm.dial(remote)?;
println!("Dialed {addr}")
}
loop {
match swarm.select_next_some().await {
SwarmEvent::NewListenAddr { address, .. } => println!("Listening on {address:?}"),
// Prints peer id identify info is being sent to.
SwarmEvent::Behaviour(identify::Event::Sent { peer_id, .. }) => {
println!("Sent identify info to {peer_id:?}")
}
// Prints out the info received via the identify event
SwarmEvent::Behaviour(identify::Event::Received { info, .. }) => {
println!("Received {info:?}")
}
_ => {}
}
}
}
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