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use std::io::Write;
use std::sync::Arc;
use std::time::Duration;
use log::{debug, info, warn};
use async_trait::async_trait;
use serde::{Deserialize, Serialize};
use structopt::StructOpt;
use sodiumoxide::crypto::auth;
use sodiumoxide::crypto::sign::ed25519;
use tokio::sync::watch;
use netapp::endpoint::*;
use netapp::peering::basalt::*;
use netapp::proto::*;
use netapp::util::parse_peer_addr;
use netapp::{NetApp, NodeID};
#[derive(StructOpt, Debug)]
#[structopt(name = "netapp")]
pub struct Opt {
#[structopt(long = "network-key", short = "n")]
network_key: Option<String>,
#[structopt(long = "private-key", short = "p")]
private_key: Option<String>,
#[structopt(long = "bootstrap-peer", short = "b")]
bootstrap_peers: Vec<String>,
#[structopt(long = "listen-addr", short = "l", default_value = "127.0.0.1:1980")]
listen_addr: String,
#[structopt(long = "public-addr", short = "a")]
public_addr: Option<String>,
#[structopt(long = "view-size", short = "v", default_value = "100")]
view_size: usize,
#[structopt(long = "cache-size", short = "c", default_value = "1000")]
cache_size: usize,
#[structopt(long = "exchange-interval-secs", short = "x", default_value = "1")]
exchange_interval: u64,
#[structopt(long = "reset-interval-secs", short = "r", default_value = "10")]
reset_interval: u64,
#[structopt(long = "reset-count", short = "k", default_value = "20")]
reset_count: usize,
}
struct Example {
netapp: Arc<NetApp>,
basalt: Arc<Basalt>,
example_endpoint: Arc<Endpoint<ExampleMessage, Self>>,
}
#[tokio::main]
async fn main() {
env_logger::Builder::new()
.parse_env("RUST_LOG")
.format(|buf, record| {
writeln!(
buf,
"{} {} {} {}",
chrono::Local::now().format("%s%.6f"),
record.module_path().unwrap_or("_"),
record.level(),
record.args()
)
})
.init();
let opt = Opt::from_args();
let netid = match &opt.network_key {
Some(k) => auth::Key::from_slice(&hex::decode(k).unwrap()).unwrap(),
None => auth::gen_key(),
};
info!("KYEV NK {}", hex::encode(&netid));
let privkey = match &opt.private_key {
Some(k) => ed25519::SecretKey::from_slice(&hex::decode(k).unwrap()).unwrap(),
None => {
let (_pk, sk) = ed25519::gen_keypair();
sk
}
};
info!("KYEV SK {}", hex::encode(&privkey));
info!("KYEV PK {}", hex::encode(&privkey.public_key()));
let netapp = NetApp::new(0u64, netid, privkey);
let mut bootstrap_peers = vec![];
for peer in opt.bootstrap_peers.iter() {
bootstrap_peers.push(parse_peer_addr(peer).expect("Invalid peer address"));
}
let basalt_params = BasaltParams {
view_size: opt.view_size,
cache_size: opt.cache_size,
exchange_interval: Duration::from_secs(opt.exchange_interval),
reset_interval: Duration::from_secs(opt.reset_interval),
reset_count: opt.reset_count,
};
let basalt = Basalt::new(netapp.clone(), bootstrap_peers, basalt_params);
let example = Arc::new(Example {
netapp: netapp.clone(),
basalt,
example_endpoint: netapp.endpoint("__netapp/examples/basalt.rs/Example".into()),
});
example.example_endpoint.set_handler(example.clone());
let listen_addr = opt.listen_addr.parse().unwrap();
let public_addr = opt.public_addr.map(|x| x.parse().unwrap());
let watch_cancel = netapp::util::watch_ctrl_c();
tokio::join!(
example.clone().sampling_loop(watch_cancel.clone()),
example
.netapp
.clone()
.listen(listen_addr, public_addr, watch_cancel.clone()),
example.basalt.clone().run(watch_cancel.clone()),
);
}
impl Example {
async fn sampling_loop(self: Arc<Self>, must_exit: watch::Receiver<bool>) {
while !*must_exit.borrow() {
tokio::time::sleep(Duration::from_secs(10)).await;
let peers = self.basalt.sample(10);
for p in peers {
debug!("kyev S {}", hex::encode(p));
let self2 = self.clone();
tokio::spawn(async move {
match self2
.example_endpoint
.call(&p, &ExampleMessage { example_field: 42 }, PRIO_NORMAL)
.await
{
Ok(resp) => debug!("Got example response: {:?}", resp),
Err(e) => warn!("Error with example request: {}", e),
}
});
}
}
}
}
#[async_trait]
impl EndpointHandler<ExampleMessage> for Example {
async fn handle(self: &Arc<Self>, msg: &ExampleMessage, _from: NodeID) -> ExampleResponse {
debug!("Got example message: {:?}, sending example response", msg);
ExampleResponse {
example_field: false,
}
}
}
#[derive(Serialize, Deserialize, Debug)]
struct ExampleMessage {
example_field: usize,
}
#[derive(Serialize, Deserialize, Debug)]
struct ExampleResponse {
example_field: bool,
}
impl Message for ExampleMessage {
type Response = ExampleResponse;
}
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