Merge pull request #42 from sigp/remove-libp2p
Remove all libp2p and syncing code
This commit is contained in:
Paul Hauner
GitHub
commit
6dacb1c654
@ -12,7 +12,6 @@ clap = "2.32.0"
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db = { path = "lighthouse/db" }
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dirs = "1.0.3"
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futures = "0.1.23"
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network-libp2p = { path = "network-libp2p" }
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rand = "0.3"
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rlp = { git = "https://github.com/paritytech/parity-common" }
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slog = "^2.2.3"
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@ -1,83 +0,0 @@
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use std::sync::Arc;
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use std::thread;
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use super::db::{ DiskDB };
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use super::config::LighthouseConfig;
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use super::futures::sync::mpsc::{
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unbounded,
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};
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use super::network_libp2p::service::listen as network_listen;
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use super::network_libp2p::state::NetworkState;
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use super::slog::Logger;
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use super::sync::run_sync_future;
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use super::db::ClientDB;
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/// Represents the co-ordination of the
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/// networking, syncing and RPC (not-yet-implemented) threads.
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pub struct Client {
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pub db: Arc<ClientDB>,
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pub network_thread: thread::JoinHandle<()>,
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pub sync_thread: thread::JoinHandle<()>,
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}
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impl Client {
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/// Instantiates a new "Client".
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///
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/// Presently, this means starting network and sync threads
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/// and plumbing them together.
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pub fn new(config: &LighthouseConfig,
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log: &Logger)
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-> Self
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{
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// Open the local db
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let db = {
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let db = DiskDB::open(&config.data_dir, None);
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Arc::new(db)
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};
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// Start the network thread
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let network_state = NetworkState::new(
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&config.data_dir,
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config.p2p_listen_port,
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&log).expect("Network setup failed"); let (network_thread, network_tx, network_rx) = {
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let (message_sender, message_receiver) = unbounded();
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let (event_sender, event_receiver) = unbounded();
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let network_log = log.new(o!());
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let thread = thread::spawn(move || {
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network_listen(
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network_state,
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&event_sender,
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message_receiver,
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&network_log,
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);
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});
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(thread, message_sender, event_receiver)
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};
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// Start the sync thread
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let (sync_thread, _sync_tx, _sync_rx) = {
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let (sync_out_sender, sync_out_receiver) = unbounded();
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let (sync_in_sender, sync_in_receiver) = unbounded();
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let sync_log = log.new(o!());
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let sync_db = db.clone();
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let thread = thread::spawn(move || {
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run_sync_future(
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sync_db,
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network_tx.clone(),
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network_rx,
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&sync_out_sender,
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&sync_in_receiver,
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sync_log,
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);
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});
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(thread, sync_in_sender, sync_out_receiver)
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};
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// Return the client struct
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Self {
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db,
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network_thread,
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sync_thread,
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}
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}
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}
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@ -4,13 +4,10 @@ extern crate slog_term;
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extern crate slog_async;
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// extern crate ssz;
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extern crate clap;
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extern crate network_libp2p;
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extern crate futures;
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extern crate db;
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mod client;
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mod sync;
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mod config;
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use std::path::PathBuf;
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@ -18,7 +15,6 @@ use std::path::PathBuf;
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use slog::Drain;
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use clap::{ Arg, App };
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use config::LighthouseConfig;
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use client::Client;
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fn main() {
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let decorator = slog_term::TermDecorator::new().build();
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@ -64,8 +60,8 @@ fn main() {
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"data_dir" => &config.data_dir.to_str(),
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"port" => &config.p2p_listen_port);
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let client = Client::new(&config, &log);
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client.sync_thread.join().unwrap();
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error!(log,
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"Lighthouse under development and does not provide a user demo.");
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info!(log, "Exiting.");
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}
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@ -1,12 +0,0 @@
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extern crate futures;
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extern crate slog;
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extern crate tokio;
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extern crate network_libp2p;
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pub mod network;
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pub mod sync_future;
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pub mod wire_protocol;
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pub use self::sync_future::run_sync_future;
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use super::db;
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@ -1,86 +0,0 @@
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use std::sync::Arc;
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use super::db::ClientDB;
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use slog::Logger;
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use super::network_libp2p::message::{
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NetworkEvent,
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OutgoingMessage,
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NetworkEventType,
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};
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use super::wire_protocol::{
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WireMessage,
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WireMessageHeader,
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};
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use super::futures::sync::mpsc::{
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UnboundedSender,
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};
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/// Accept a network event and perform all required processing.
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///
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/// This function should be called whenever an underlying network
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/// (e.g., libp2p) has an event to push up to the sync process.
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pub fn handle_network_event(
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event: NetworkEvent,
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db: &Arc<ClientDB>,
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network_tx: &UnboundedSender<OutgoingMessage>,
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log: &Logger)
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-> Result<(), ()>
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{
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debug!(&log, "";
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"network_event" => format!("{:?}", &event));
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match event.event {
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NetworkEventType::PeerConnect => Ok(()),
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NetworkEventType::PeerDrop => Ok(()),
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NetworkEventType::Message => {
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if let Some(data) = event.data {
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handle_network_message(
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&data,
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&db,
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&network_tx,
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&log)
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} else {
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Ok(())
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}
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}
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}
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}
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/// Accept a message from the network and perform all required
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/// processing.
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///
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/// This function should be called whenever a peer from a network
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/// (e.g., libp2p) has sent a message to us.
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fn handle_network_message(
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message: &[u8],
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db: &Arc<ClientDB>,
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_network_tx: &UnboundedSender<OutgoingMessage>,
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log: &Logger)
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-> Result<(), ()>
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{
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match WireMessage::decode(&message) {
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Ok(msg) => {
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match msg.header {
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WireMessageHeader::Blocks => {
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process_unverified_blocks(
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msg.body,
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&db,
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&log
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);
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Ok(())
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}
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}
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}
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Err(_) => {
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Ok(()) // No need to pass the error back
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}
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}
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}
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fn process_unverified_blocks(_message: &[u8],
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_db: &Arc<ClientDB>,
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_log: &Logger)
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{
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//
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}
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@ -1,48 +0,0 @@
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use super::tokio;
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use super::futures::{ Future, Stream };
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use super::futures::sync::mpsc::{
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UnboundedReceiver,
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UnboundedSender,
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};
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use super::network_libp2p::message::{
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NetworkEvent,
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OutgoingMessage,
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};
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use super::network::handle_network_event;
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use std::sync::Arc;
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use super::db::ClientDB;
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use slog::Logger;
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type NetworkSender = UnboundedSender<OutgoingMessage>;
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type NetworkReceiver = UnboundedReceiver<NetworkEvent>;
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type SyncSender = UnboundedSender<Vec<u8>>;
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type SyncReceiver = UnboundedReceiver<Vec<u8>>;
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/// Start a syncing tokio future.
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///
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/// Uses green-threading to process messages
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/// from the network and the RPC and update
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/// the state.
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pub fn run_sync_future(
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db: Arc<ClientDB>,
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network_tx: NetworkSender,
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network_rx: NetworkReceiver,
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_sync_tx: &SyncSender,
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_sync_rx: &SyncReceiver,
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log: Logger)
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{
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let network_future = {
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network_rx
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.for_each(move |event| {
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handle_network_event(
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event,
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&db.clone(),
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&network_tx.clone(),
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&log.clone())
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})
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.map_err(|_| panic!("rx failed"))
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};
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tokio::run(network_future);
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}
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@ -1,92 +0,0 @@
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pub enum WireMessageDecodeError {
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TooShort,
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UnknownType,
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}
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pub enum WireMessageHeader {
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Blocks,
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/*
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// Leave out until used
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Status,
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NewBlockHashes,
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GetBlockHashes,
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BlockHashes,
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GetBlocks,
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NewBlock,
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*/
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}
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pub struct WireMessage<'a> {
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pub header: WireMessageHeader,
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pub body: &'a [u8],
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}
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impl<'a> WireMessage<'a> {
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pub fn decode(bytes: &'a [u8])
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-> Result<Self, WireMessageDecodeError>
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{
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if let Some((header_byte, body)) = bytes.split_first() {
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let header = match header_byte {
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0x06 => Some(WireMessageHeader::Blocks),
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_ => None
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};
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match header {
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Some(header) => Ok(Self{header, body}),
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None => Err(WireMessageDecodeError::UnknownType)
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}
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} else {
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Err(WireMessageDecodeError::TooShort)
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}
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}
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}
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/*
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pub fn decode_wire_message(bytes: &[u8])
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-> Result<WireMessage, WireMessageDecodeError>
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{
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if let Some((header_byte, body)) = bytes.split_first() {
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let header = match header_byte {
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0x06 => Some(WireMessageType::Blocks),
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_ => None
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};
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match header {
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Some(header) => Ok((header, body)),
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None => Err(WireMessageDecodeError::UnknownType)
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}
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} else {
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Err(WireMessageDecodeError::TooShort)
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}
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}
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/// Determines the message type of some given
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/// message.
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///
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/// Does not check the validity of the message data,
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/// it just reads the first byte.
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pub fn message_type(message: &Vec<u8>)
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-> Option<WireMessageType>
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{
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match message.get(0) {
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Some(0x06) => Some(WireMessageType::Blocks),
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_ => None
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}
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}
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pub fn identify_wire_protocol_message(message: &Vec<u8>)
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-> Result<(WireMessageType, &[u8]), WireMessageDecodeError>
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{
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fn strip_header(v: &Vec<u8>) -> &[u8] {
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match v.get(1..v.len()) {
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None => &vec![],
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Some(s) => s
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}
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}
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match message.get(0) {
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Some(0x06) => Ok((WireMessageType::Blocks, strip_header(message))),
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None => Err(WireMessageDecodeError::TooShort),
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_ => Err(WireMessageDecodeError::UnknownType),
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}
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}
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*/
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@ -1,24 +0,0 @@
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[package]
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name = "network-libp2p"
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version = "0.1.0"
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authors = ["Paul Hauner <paul@paulhauner.com>"]
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[dependencies]
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bigint = "4.2"
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bytes = ""
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eth-secp256k1 = { git = "https://github.com/paritytech/rust-secp256k1" }
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futures = "0.1.23"
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libp2p-peerstore = { git = "https://github.com/sigp/libp2p-rs", branch ="zksummit" }
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libp2p-core = { git = "https://github.com/sigp/libp2p-rs", branch ="zksummit" }
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libp2p-mplex = { git = "https://github.com/sigp/libp2p-rs", branch ="zksummit" }
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libp2p-tcp-transport = { git = "https://github.com/sigp/libp2p-rs", branch ="zksummit" }
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libp2p-floodsub = { git = "https://github.com/sigp/libp2p-rs", branch ="zksummit" }
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libp2p-identify = { git = "https://github.com/sigp/libp2p-rs", branch ="zksummit" }
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libp2p-kad = { git = "https://github.com/sigp/libp2p-rs", branch ="zksummit" }
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pem = "0.5.0"
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rand = "0.3"
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slog = "^2.2.3"
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tokio-core = "0.1"
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tokio-io = "0.1"
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tokio-stdin = "0.1"
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tokio-timer = "0.1"
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@ -1,7 +0,0 @@
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# libp2p Network
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This is a fairly scrappy implementation of libp2p floodsub for the following
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reasons:
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- There is not presently a gossip-sub implementation for Rust libp2p.
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- The networking layer for the beacon_chain is not yet finalized.
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@ -1,10 +0,0 @@
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extern crate libp2p_core;
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extern crate libp2p_peerstore;
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extern crate pem;
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extern crate secp256k1;
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#[macro_use]
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extern crate slog;
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pub mod message;
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pub mod service;
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pub mod state;
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@ -1,18 +0,0 @@
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#[derive(Debug)]
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pub enum NetworkEventType {
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PeerConnect,
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PeerDrop,
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Message,
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}
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#[derive(Debug)]
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pub struct NetworkEvent {
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pub event: NetworkEventType,
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pub data: Option<Vec<u8>>,
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}
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#[derive(Debug)]
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pub struct OutgoingMessage {
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pub peer: Option<String>,
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pub data: Vec<u8>,
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}
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@ -1,315 +0,0 @@
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extern crate bigint;
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extern crate bytes;
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extern crate futures;
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extern crate libp2p_peerstore;
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extern crate libp2p_floodsub;
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extern crate libp2p_identify;
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extern crate libp2p_core;
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extern crate libp2p_mplex;
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extern crate libp2p_tcp_transport;
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extern crate libp2p_kad;
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extern crate slog;
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extern crate tokio_core;
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extern crate tokio_io;
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extern crate tokio_timer;
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extern crate tokio_stdin;
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use super::state::NetworkState;
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use super::message::{ NetworkEvent, NetworkEventType, OutgoingMessage };
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use self::bigint::U512;
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use self::futures::{ Future, Stream, Poll };
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use self::futures::sync::mpsc::{
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UnboundedSender, UnboundedReceiver
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};
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use self::libp2p_core::{ AddrComponent, Endpoint, Multiaddr,
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Transport, ConnectionUpgrade };
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use self::libp2p_kad::{ KademliaUpgrade, KademliaProcessingFuture};
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use self::libp2p_floodsub::{ FloodSubFuture, FloodSubUpgrade };
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use self::libp2p_identify::{ IdentifyInfo, IdentifyTransport, IdentifyOutput };
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use self::slog::Logger;
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use std::sync::{ Arc, RwLock };
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use std::time::{ Duration, Instant };
|
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use std::ops::Deref;
|
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use std::io::Error as IoError;
|
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use self::tokio_io::{ AsyncRead, AsyncWrite };
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use self::bytes::Bytes;
|
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|
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pub use self::libp2p_floodsub::Message;
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|
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pub fn listen(state: NetworkState,
|
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events_to_app: &UnboundedSender<NetworkEvent>,
|
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raw_rx: UnboundedReceiver<OutgoingMessage>,
|
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log: &Logger)
|
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{
|
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let peer_store = state.peer_store;
|
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let peer_id = state.peer_id;
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let listen_multiaddr = state.listen_multiaddr;
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let listened_addrs = Arc::new(RwLock::new(vec![]));
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let rx = ApplicationReciever{ inner: raw_rx };
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|
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// Build a tokio core
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let mut core = tokio_core::reactor::Core::new().expect("tokio failure.");
|
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// Build a base TCP libp2p transport
|
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let transport = libp2p_tcp_transport::TcpConfig::new(core.handle())
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.with_upgrade(libp2p_core::upgrade::PlainTextConfig)
|
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.with_upgrade(libp2p_mplex::BufferedMultiplexConfig::<[_; 256]>::new())
|
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.into_connection_reuse();
|
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|
||||
// Build an identify transport to allow identification and negotiation
|
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// of layers running atop the TCP transport (e.g., kad)
|
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let identify_transport = {
|
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let listened_addrs = listened_addrs.clone();
|
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let listen_multiaddr = listen_multiaddr.clone();
|
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IdentifyTransport::new(transport.clone(), peer_store.clone())
|
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// Managed NAT'ed connections - ensuring the external IP
|
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// is stored not the internal addr.
|
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.map(move |out, _, _| {
|
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if let(Some(ref observed), ref listen_multiaddr) =
|
||||
(out.observed_addr, listen_multiaddr)
|
||||
{
|
||||
if let Some(viewed_from_outside) =
|
||||
transport.nat_traversal(listen_multiaddr, observed)
|
||||
{
|
||||
listened_addrs.write().unwrap()
|
||||
.push(viewed_from_outside);
|
||||
}
|
||||
}
|
||||
out.socket
|
||||
})
|
||||
};
|
||||
|
||||
// Configure and build a Kademlia upgrade to be applied
|
||||
// to the base TCP transport.
|
||||
let kad_config = libp2p_kad::KademliaConfig {
|
||||
parallelism: 3,
|
||||
record_store: (),
|
||||
peer_store,
|
||||
local_peer_id: peer_id.clone(),
|
||||
timeout: Duration::from_secs(2)
|
||||
};
|
||||
let kad_ctl_proto = libp2p_kad::
|
||||
KademliaControllerPrototype::new(kad_config);
|
||||
let kad_upgrade = libp2p_kad::
|
||||
KademliaUpgrade::from_prototype(&kad_ctl_proto);
|
||||
|
||||
// Build a floodsub upgrade to allow pushing topic'ed
|
||||
// messages across the network.
|
||||
let (floodsub_upgrade, floodsub_rx) =
|
||||
FloodSubUpgrade::new(peer_id.clone());
|
||||
|
||||
// Combine the Kademlia and Identify upgrades into a single
|
||||
// upgrader struct.
|
||||
let upgrade = ConnectionUpgrader {
|
||||
kad: kad_upgrade.clone(),
|
||||
floodsub: floodsub_upgrade.clone(),
|
||||
identify: libp2p_identify::IdentifyProtocolConfig,
|
||||
};
|
||||
|
||||
// Build a Swarm to manage upgrading connections to peers.
|
||||
let swarm_listened_addrs = listened_addrs.clone();
|
||||
let swarm_peer_id = peer_id.clone();
|
||||
let (swarm_ctl, swarm_future) = libp2p_core::swarm(
|
||||
identify_transport.clone().with_upgrade(upgrade),
|
||||
move |upgrade, client_addr| match upgrade {
|
||||
FinalUpgrade::Kad(kad) => Box::new(kad) as Box<_>,
|
||||
FinalUpgrade::FloodSub(future) => Box::new(future) as Box<_>,
|
||||
FinalUpgrade::Identify(IdentifyOutput::Sender { sender, .. }) => sender.send(
|
||||
IdentifyInfo {
|
||||
public_key: swarm_peer_id.clone().into_bytes(),
|
||||
agent_version: "lighthouse/1.0.0".to_owned(),
|
||||
protocol_version: "rust-libp2p/1.0.0".to_owned(),
|
||||
listen_addrs: swarm_listened_addrs.read().unwrap().to_vec(),
|
||||
protocols: vec![
|
||||
"/ipfs/kad/1.0.0".to_owned(),
|
||||
"/ipfs/id/1.0.0".to_owned(),
|
||||
"/floodsub/1.0.0".to_owned(),
|
||||
]
|
||||
},
|
||||
&client_addr
|
||||
),
|
||||
FinalUpgrade::Identify(IdentifyOutput::RemoteInfo { .. }) => {
|
||||
unreachable!("Never dial with the identify protocol.")
|
||||
}
|
||||
},
|
||||
);
|
||||
|
||||
// Start the Swarm controller listening on the local machine
|
||||
let actual_addr = swarm_ctl
|
||||
.listen_on(listen_multiaddr)
|
||||
.expect("Failed to listen on multiaddr");
|
||||
info!(log, "libp2p listening"; "listen_addr" => actual_addr.to_string());
|
||||
|
||||
// Convert the kad prototype into a controller by providing it the
|
||||
// newly built swarm.
|
||||
let (kad_ctl, kad_init) = kad_ctl_proto.start(
|
||||
swarm_ctl.clone(),
|
||||
identify_transport.clone().with_upgrade(kad_upgrade.clone()));
|
||||
|
||||
// Create a new floodsub controller using a specific topic
|
||||
let topic = libp2p_floodsub::TopicBuilder::new("beacon_chain").build();
|
||||
let floodsub_ctl = libp2p_floodsub::FloodSubController::new(&floodsub_upgrade);
|
||||
floodsub_ctl.subscribe(&topic);
|
||||
|
||||
// Generate a tokio timer "wheel" future that sends kad FIND_NODE at
|
||||
// a routine interval.
|
||||
let kad_poll_log = log.new(o!());
|
||||
let kad_poll_event_tx = events_to_app.clone();
|
||||
let kad_poll = {
|
||||
let polling_peer_id = peer_id.clone();
|
||||
tokio_timer::wheel()
|
||||
.build()
|
||||
.interval_at(Instant::now(), Duration::from_secs(30))
|
||||
.map_err(|_| -> IoError { unreachable!() })
|
||||
.and_then(move |()| kad_ctl.find_node(peer_id.clone()))
|
||||
.for_each(move |peers| {
|
||||
let local_hash = U512::from(polling_peer_id.hash());
|
||||
for peer in peers {
|
||||
let peer_hash = U512::from(peer.hash());
|
||||
let distance = 512 - (local_hash ^ peer_hash).leading_zeros();
|
||||
info!(kad_poll_log, "Discovered peer";
|
||||
"distance" => distance,
|
||||
"peer_id" => peer.to_base58());
|
||||
let peer_addr = AddrComponent::P2P(peer.into_bytes()).into();
|
||||
let dial_result = swarm_ctl.dial(
|
||||
peer_addr,
|
||||
identify_transport.clone().with_upgrade(floodsub_upgrade.clone())
|
||||
);
|
||||
if let Err(err) = dial_result {
|
||||
warn!(kad_poll_log, "Dialling {:?} failed.", err)
|
||||
};
|
||||
let event = NetworkEvent {
|
||||
event: NetworkEventType::PeerConnect,
|
||||
data: None,
|
||||
};
|
||||
kad_poll_event_tx.unbounded_send(event)
|
||||
.expect("Network unable to contact application.");
|
||||
};
|
||||
Ok(())
|
||||
})
|
||||
};
|
||||
|
||||
// Create a future to handle message recieved from the network
|
||||
let floodsub_rx = floodsub_rx.for_each(|msg| {
|
||||
debug!(&log, "Network receive"; "msg" => format!("{:?}", msg));
|
||||
let event = NetworkEvent {
|
||||
event: NetworkEventType::Message,
|
||||
data: Some(msg.data),
|
||||
};
|
||||
events_to_app.unbounded_send(event)
|
||||
.expect("Network unable to contact application.");
|
||||
Ok(())
|
||||
});
|
||||
|
||||
// Create a future to handle messages recieved from the application
|
||||
let app_rx = rx.for_each(|msg| {
|
||||
debug!(&log, "Network publish"; "msg" => format!("{:?}", msg));
|
||||
floodsub_ctl.publish(&topic, msg.data);
|
||||
Ok(())
|
||||
});
|
||||
|
||||
// Generate a full future
|
||||
let final_future = swarm_future
|
||||
.select(floodsub_rx).map_err(|(err, _)| err).map(|((), _)| ())
|
||||
.select(app_rx).map_err(|(err, _)| err).map(|((), _)| ())
|
||||
.select(kad_poll).map_err(|(err, _)| err).map(|((), _)| ())
|
||||
.select(kad_init).map_err(|(err, _)| err).and_then(|((), n)| n);
|
||||
|
||||
core.run(final_future).unwrap();
|
||||
}
|
||||
|
||||
struct ApplicationReciever {
|
||||
inner: UnboundedReceiver<OutgoingMessage>,
|
||||
}
|
||||
|
||||
impl Stream for ApplicationReciever {
|
||||
type Item = OutgoingMessage;
|
||||
type Error = IoError;
|
||||
|
||||
fn poll(&mut self) -> Poll<Option<Self::Item>, Self::Error> {
|
||||
self.inner
|
||||
.poll()
|
||||
.map_err(|_| unreachable!())
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone)]
|
||||
struct ConnectionUpgrader<P, R> {
|
||||
kad: KademliaUpgrade<P, R>,
|
||||
identify: libp2p_identify::IdentifyProtocolConfig,
|
||||
floodsub: FloodSubUpgrade,
|
||||
}
|
||||
|
||||
impl<C, P, R, Pc> ConnectionUpgrade<C> for ConnectionUpgrader<P, R>
|
||||
where
|
||||
C: AsyncRead + AsyncWrite + 'static,
|
||||
P: Deref<Target = Pc> + Clone + 'static,
|
||||
for<'r> &'r Pc: libp2p_peerstore::Peerstore,
|
||||
R: 'static
|
||||
{
|
||||
type NamesIter = ::std::vec::IntoIter<(Bytes, usize)>;
|
||||
type UpgradeIdentifier = usize;
|
||||
type Output = FinalUpgrade<C>;
|
||||
type Future = Box<Future<Item = FinalUpgrade<C>, Error = IoError>>;
|
||||
|
||||
#[inline]
|
||||
fn protocol_names(&self) -> Self::NamesIter {
|
||||
vec![
|
||||
(Bytes::from("/ipfs/kad/1.0.0"), 0),
|
||||
(Bytes::from("/ipfs/id/1.0.0"), 1),
|
||||
(Bytes::from("/floodsub/1.0.0"), 2),
|
||||
].into_iter()
|
||||
}
|
||||
|
||||
fn upgrade(
|
||||
self,
|
||||
socket: C,
|
||||
id: Self::UpgradeIdentifier,
|
||||
ty: Endpoint,
|
||||
remote_addr: &Multiaddr)
|
||||
-> Self::Future
|
||||
{
|
||||
match id {
|
||||
0 => Box::new(
|
||||
self.kad
|
||||
.upgrade(socket, (), ty, remote_addr)
|
||||
.map(|upg| upg.into())),
|
||||
1 => Box::new(
|
||||
self.identify
|
||||
.upgrade(socket, (), ty, remote_addr)
|
||||
.map(|upg| upg.into())),
|
||||
2 => Box::new(
|
||||
self.floodsub
|
||||
.upgrade(socket, (), ty, remote_addr)
|
||||
.map(|upg| upg.into()),
|
||||
),
|
||||
_ => unreachable!()
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
enum FinalUpgrade<C> {
|
||||
Kad(KademliaProcessingFuture),
|
||||
Identify(IdentifyOutput<C>),
|
||||
FloodSub(FloodSubFuture),
|
||||
}
|
||||
|
||||
impl<C> From<libp2p_kad::KademliaProcessingFuture> for FinalUpgrade<C> { #[inline]
|
||||
fn from(upgrade: libp2p_kad::KademliaProcessingFuture) -> Self {
|
||||
FinalUpgrade::Kad(upgrade)
|
||||
}
|
||||
}
|
||||
|
||||
impl<C> From<IdentifyOutput<C>> for FinalUpgrade<C> {
|
||||
#[inline]
|
||||
fn from(upgrade: IdentifyOutput<C>) -> Self {
|
||||
FinalUpgrade::Identify(upgrade)
|
||||
}
|
||||
}
|
||||
|
||||
impl<C> From<FloodSubFuture> for FinalUpgrade<C> {
|
||||
#[inline]
|
||||
fn from(upgr: FloodSubFuture) -> Self {
|
||||
FinalUpgrade::FloodSub(upgr)
|
||||
}
|
||||
}
|
||||
@ -1,119 +0,0 @@
|
||||
extern crate rand;
|
||||
|
||||
use std::io::{ Read, Write };
|
||||
use std::error::Error;
|
||||
use std::fs::File;
|
||||
use std::path::{ Path, PathBuf };
|
||||
use std::sync::Arc;
|
||||
use std::time::Duration;
|
||||
|
||||
use super::libp2p_core::Multiaddr;
|
||||
use super::libp2p_peerstore::{ Peerstore, PeerAccess, PeerId };
|
||||
use super::libp2p_peerstore::json_peerstore::JsonPeerstore;
|
||||
use super::pem;
|
||||
use super::secp256k1::Secp256k1;
|
||||
use super::secp256k1::key::{ SecretKey, PublicKey };
|
||||
use super::slog::Logger;
|
||||
|
||||
/// Location of the libp2p peerstore inside the Network base dir.
|
||||
const PEERS_FILE: &str = "peerstore.json";
|
||||
/// Location of the libp2p local peer secret key inside the Network base dir.
|
||||
const LOCAL_PEM_FILE: &str = "local_peer_id.pem";
|
||||
|
||||
/// Represents the present state of a libp2p network.
|
||||
pub struct NetworkState {
|
||||
pub base_dir: PathBuf,
|
||||
pub pubkey: PublicKey,
|
||||
pub seckey: SecretKey,
|
||||
pub peer_id: PeerId,
|
||||
pub listen_multiaddr: Multiaddr,
|
||||
pub peer_store: Arc<JsonPeerstore>,
|
||||
}
|
||||
|
||||
impl NetworkState {
|
||||
/// Create a new libp2p network state. Used to initialize
|
||||
/// network service.
|
||||
pub fn new(
|
||||
// config: LighthouseConfig,
|
||||
base_dir: &Path,
|
||||
listen_port: u16,
|
||||
log: &Logger)
|
||||
-> Result <Self, Box<Error>>
|
||||
{
|
||||
let curve = Secp256k1::new();
|
||||
let seckey = match
|
||||
NetworkState::load_secret_key_from_pem_file(base_dir, &curve)
|
||||
{
|
||||
Ok(k) => k,
|
||||
_ => NetworkState::generate_new_secret_key(base_dir, &curve)?
|
||||
};
|
||||
let pubkey = PublicKey::from_secret_key(&curve, &seckey)?;
|
||||
let peer_id = PeerId::from_public_key(
|
||||
&pubkey.serialize_vec(&curve, false));
|
||||
info!(log, "Loaded keys"; "peer_id" => &peer_id.to_base58());
|
||||
let peer_store = {
|
||||
let path = base_dir.join(PEERS_FILE);
|
||||
let base = JsonPeerstore::new(path)?;
|
||||
Arc::new(base)
|
||||
};
|
||||
info!(log, "Loaded peerstore"; "peer_count" => &peer_store.peers().count());
|
||||
let listen_multiaddr =
|
||||
NetworkState::multiaddr_on_port(&listen_port.to_string());
|
||||
Ok(Self {
|
||||
base_dir: PathBuf::from(base_dir),
|
||||
seckey,
|
||||
pubkey,
|
||||
peer_id,
|
||||
listen_multiaddr,
|
||||
peer_store,
|
||||
})
|
||||
}
|
||||
|
||||
/// Return a TCP multiaddress on 0.0.0.0 for a given port.
|
||||
pub fn multiaddr_on_port(port: &str) -> Multiaddr {
|
||||
format!("/ip4/0.0.0.0/tcp/{}", port)
|
||||
.parse::<Multiaddr>().unwrap()
|
||||
}
|
||||
|
||||
pub fn add_peer(&mut self,
|
||||
peer_id: &PeerId,
|
||||
multiaddr: Multiaddr,
|
||||
duration_secs: u64) {
|
||||
self.peer_store.peer_or_create(&peer_id)
|
||||
.add_addr(multiaddr, Duration::from_secs(duration_secs));
|
||||
}
|
||||
|
||||
/// Instantiate a SecretKey from a .pem file on disk.
|
||||
pub fn load_secret_key_from_pem_file(
|
||||
base_dir: &Path,
|
||||
curve: &Secp256k1)
|
||||
-> Result<SecretKey, Box<Error>>
|
||||
{
|
||||
let path = base_dir.join(LOCAL_PEM_FILE);
|
||||
let mut contents = String::new();
|
||||
let mut file = File::open(path)?;
|
||||
file.read_to_string(&mut contents)?;
|
||||
let pem_key = pem::parse(contents)?;
|
||||
let key = SecretKey::from_slice(curve, &pem_key.contents)?;
|
||||
Ok(key)
|
||||
}
|
||||
|
||||
/// Generate a new SecretKey and store it on disk as a .pem file.
|
||||
pub fn generate_new_secret_key(
|
||||
base_dir: &Path,
|
||||
curve: &Secp256k1)
|
||||
-> Result<SecretKey, Box<Error>>
|
||||
{
|
||||
let mut rng = rand::thread_rng();
|
||||
let sk = SecretKey::new(&curve, &mut rng);
|
||||
let pem_key = pem::Pem {
|
||||
tag: String::from("EC PRIVATE KEY"),
|
||||
contents: sk[..].to_vec()
|
||||
};
|
||||
let s_string = pem::encode(&pem_key);
|
||||
let path = base_dir.join(LOCAL_PEM_FILE);
|
||||
let mut s_file = File::create(path)?;
|
||||
s_file.write_all(s_string.as_bytes())?;
|
||||
Ok(sk)
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user