Allow arbitrary logger types.

Cargo.toml

@@ -5,9 +5,9 @@ edition = "2021"
 
 [dependencies]
 bitcoin = "0.29"
-lightning = { version = "0.0.116-alpha1" }
-lightning-block-sync = { version = "0.0.116-alpha1", features=["rest-client"] }
-lightning-net-tokio = { version = "0.0.116-alpha1" }
+lightning = { version = "0.0.116" }
+lightning-block-sync = { version = "0.0.116", features=["rest-client"] }
+lightning-net-tokio = { version = "0.0.116" }
 tokio = { version = "1.25", features = ["full"] }
 tokio-postgres = { version="=0.7.5" }
 futures = "0.3"

src/config.rs

@@ -35,6 +35,19 @@ pub(crate) fn network() -> Network {
 	}
 }
 
+pub(crate) fn log_level() -> lightning::util::logger::Level {
+	let level = env::var("RAPID_GOSSIP_SYNC_SERVER_LOG_LEVEL").unwrap_or("info".to_string()).to_lowercase();
+	match level.as_str() {
+		"gossip" => lightning::util::logger::Level::Gossip,
+		"trace" => lightning::util::logger::Level::Trace,
+		"debug" => lightning::util::logger::Level::Debug,
+		"info" => lightning::util::logger::Level::Info,
+		"warn" => lightning::util::logger::Level::Warn,
+		"error" => lightning::util::logger::Level::Error,
+		_ => panic!("Invalid log level"),
+	}
+}
+
 pub(crate) fn network_graph_cache_path() -> String {
 	format!("{}/network_graph.bin", cache_path())
 }

src/downloader.rs

@@ -1,14 +1,15 @@
+use std::ops::Deref;
 use std::sync::{Arc, RwLock};
 
 use bitcoin::secp256k1::PublicKey;
 use lightning::events::{MessageSendEvent, MessageSendEventsProvider};
 use lightning::ln::features::{InitFeatures, NodeFeatures};
 use lightning::ln::msgs::{ChannelAnnouncement, ChannelUpdate, Init, LightningError, NodeAnnouncement, QueryChannelRange, QueryShortChannelIds, ReplyChannelRange, ReplyShortChannelIdsEnd, RoutingMessageHandler};
 use lightning::routing::gossip::{NetworkGraph, NodeId, P2PGossipSync};
+use lightning::util::logger::Logger;
 use tokio::sync::mpsc;
 use tokio::sync::mpsc::error::TrySendError;
 
-use crate::TestLogger;
 use crate::types::{GossipMessage, GossipChainAccess, GossipPeerManager};
 use crate::verifier::ChainVerifier;
 
@@ -30,28 +31,28 @@ impl GossipCounter {
 	}
 }
 
-pub(crate) struct GossipRouter {
-	native_router: P2PGossipSync<Arc<NetworkGraph<TestLogger>>, GossipChainAccess, TestLogger>,
+pub(crate) struct GossipRouter<L: Deref + Clone + Send + Sync + 'static> where L::Target: Logger {
+	native_router: P2PGossipSync<Arc<NetworkGraph<L>>, GossipChainAccess<L>, L>,
 	pub(crate) counter: RwLock<GossipCounter>,
 	sender: mpsc::Sender<GossipMessage>,
-	verifier: Arc<ChainVerifier>,
-	outbound_gossiper: Arc<P2PGossipSync<Arc<NetworkGraph<TestLogger>>, GossipChainAccess, TestLogger>>,
+	verifier: Arc<ChainVerifier<L>>,
+	outbound_gossiper: Arc<P2PGossipSync<Arc<NetworkGraph<L>>, GossipChainAccess<L>, L>>,
 }
 
-impl GossipRouter {
-	pub(crate) fn new(network_graph: Arc<NetworkGraph<TestLogger>>, sender: mpsc::Sender<GossipMessage>) -> Self {
-		let outbound_gossiper = Arc::new(P2PGossipSync::new(Arc::clone(&network_graph), None, TestLogger::new()));
-		let verifier = Arc::new(ChainVerifier::new(Arc::clone(&network_graph), Arc::clone(&outbound_gossiper)));
+impl<L: Deref + Clone + Send + Sync> GossipRouter<L> where L::Target: Logger {
+	pub(crate) fn new(network_graph: Arc<NetworkGraph<L>>, sender: mpsc::Sender<GossipMessage>, logger: L) -> Self {
+		let outbound_gossiper = Arc::new(P2PGossipSync::new(Arc::clone(&network_graph), None, logger.clone()));
+		let verifier = Arc::new(ChainVerifier::new(Arc::clone(&network_graph), Arc::clone(&outbound_gossiper), logger.clone()));
 		Self {
-			native_router: P2PGossipSync::new(network_graph, Some(Arc::clone(&verifier)), TestLogger::new()),
+			native_router: P2PGossipSync::new(network_graph, Some(Arc::clone(&verifier)), logger.clone()),
 			outbound_gossiper,
 			counter: RwLock::new(GossipCounter::new()),
 			sender,
-			verifier,
+			verifier
 		}
 	}
 
-	pub(crate) fn set_pm(&self, peer_handler: GossipPeerManager) {
+	pub(crate) fn set_pm(&self, peer_handler: GossipPeerManager<L>) {
 		self.verifier.set_ph(peer_handler);
 	}
 
@@ -83,7 +84,7 @@ impl GossipRouter {
 	}
 }
 
-impl MessageSendEventsProvider for GossipRouter {
+impl<L: Deref + Clone + Send + Sync> MessageSendEventsProvider for GossipRouter<L> where L::Target: Logger {
 	fn get_and_clear_pending_msg_events(&self) -> Vec<MessageSendEvent> {
 		let gossip_evs = self.outbound_gossiper.get_and_clear_pending_msg_events();
 		for ev in gossip_evs {
@@ -102,7 +103,7 @@ impl MessageSendEventsProvider for GossipRouter {
 	}
 }
 
-impl RoutingMessageHandler for GossipRouter {
+impl<L: Deref + Clone + Send + Sync> RoutingMessageHandler for GossipRouter<L> where L::Target: Logger {
 	fn handle_node_announcement(&self, msg: &NodeAnnouncement) -> Result<bool, LightningError> {
 		self.native_router.handle_node_announcement(msg)
 	}

src/lib.rs

@@ -12,20 +12,22 @@ extern crate core;
 use std::collections::{HashMap, HashSet};
 use std::fs::File;
 use std::io::BufReader;
+use std::ops::Deref;
 use std::sync::Arc;
+use lightning::log_info;
 
 use lightning::routing::gossip::{NetworkGraph, NodeId};
+use lightning::util::logger::Logger;
 use lightning::util::ser::{ReadableArgs, Writeable};
 use tokio::sync::mpsc;
 use crate::lookup::DeltaSet;
 
 use crate::persistence::GossipPersister;
 use crate::serialization::UpdateSerialization;
 use crate::snapshot::Snapshotter;
-use crate::types::TestLogger;
+use crate::types::RGSSLogger;
 
 mod downloader;
-mod types;
 mod tracking;
 mod lookup;
 mod persistence;
@@ -35,14 +37,17 @@ mod config;
 mod hex_utils;
 mod verifier;
 
+pub mod types;
+
 /// The purpose of this prefix is to identify the serialization format, should other rapid gossip
 /// sync formats arise in the future.
 ///
 /// The fourth byte is the protocol version in case our format gets updated.
 const GOSSIP_PREFIX: [u8; 4] = [76, 68, 75, 1];
 
-pub struct RapidSyncProcessor {
-	network_graph: Arc<NetworkGraph<TestLogger>>,
+pub struct RapidSyncProcessor<L: Deref> where L::Target: Logger {
+	network_graph: Arc<NetworkGraph<L>>,
+	logger: L
 }
 
 pub struct SerializedResponse {
@@ -54,27 +59,27 @@ pub struct SerializedResponse {
 	pub update_count_incremental: u32,
 }
 
-impl RapidSyncProcessor {
-	pub fn new() -> Self {
+impl<L: Deref + Clone + Send + Sync + 'static> RapidSyncProcessor<L> where L::Target: Logger {
+	pub fn new(logger: L) -> Self {
 		let network = config::network();
-		let logger = TestLogger::new();
 		let network_graph = if let Ok(file) = File::open(&config::network_graph_cache_path()) {
-			println!("Initializing from cached network graph…");
+			log_info!(logger, "Initializing from cached network graph…");
 			let mut buffered_reader = BufReader::new(file);
-			let network_graph_result = NetworkGraph::read(&mut buffered_reader, logger);
+			let network_graph_result = NetworkGraph::read(&mut buffered_reader, logger.clone());
 			if let Ok(network_graph) = network_graph_result {
-				println!("Initialized from cached network graph!");
+				log_info!(logger, "Initialized from cached network graph!");
 				network_graph
 			} else {
-				println!("Initialization from cached network graph failed: {}", network_graph_result.err().unwrap());
-				NetworkGraph::new(network, logger)
+				log_info!(logger, "Initialization from cached network graph failed: {}", network_graph_result.err().unwrap());
+				NetworkGraph::new(network, logger.clone())
 			}
 		} else {
-			NetworkGraph::new(network, logger)
+			NetworkGraph::new(network, logger.clone())
 		};
 		let arc_network_graph = Arc::new(network_graph);
 		Self {
 			network_graph: arc_network_graph,
+			logger
 		}
 	}
 
@@ -83,12 +88,12 @@ impl RapidSyncProcessor {
 		let (sync_completion_sender, mut sync_completion_receiver) = mpsc::channel::<()>(1);
 
 		if config::DOWNLOAD_NEW_GOSSIP {
-			let (mut persister, persistence_sender) = GossipPersister::new(Arc::clone(&self.network_graph));
+			let (mut persister, persistence_sender) = GossipPersister::new(self.network_graph.clone(), self.logger.clone());
 
-			println!("Starting gossip download");
+			log_info!(self.logger, "Starting gossip download");
 			tokio::spawn(tracking::download_gossip(persistence_sender, sync_completion_sender,
-				Arc::clone(&self.network_graph)));
-			println!("Starting gossip db persistence listener");
+				Arc::clone(&self.network_graph), self.logger.clone()));
+			log_info!(self.logger, "Starting gossip db persistence listener");
 			tokio::spawn(async move { persister.persist_gossip().await; });
 		} else {
 			sync_completion_sender.send(()).await.unwrap();
@@ -98,10 +103,10 @@ impl RapidSyncProcessor {
 		if sync_completion.is_none() {
 			panic!("Sync failed!");
 		}
-		println!("Initial sync complete!");
+		log_info!(self.logger, "Initial sync complete!");
 
 		// start the gossip snapshotting service
-		Snapshotter::new(Arc::clone(&self.network_graph)).snapshot_gossip().await;
+		Snapshotter::new(Arc::clone(&self.network_graph), self.logger.clone()).snapshot_gossip().await;
 	}
 }
 
@@ -126,7 +131,7 @@ fn serialize_empty_blob(current_timestamp: u64) -> Vec<u8> {
 	let chain_hash = genesis_block.block_hash();
 	chain_hash.write(&mut blob).unwrap();
 
-	let blob_timestamp = Snapshotter::round_down_to_nearest_multiple(current_timestamp, config::SNAPSHOT_CALCULATION_INTERVAL as u64) as u32;
+	let blob_timestamp = Snapshotter::<Arc<RGSSLogger>>::round_down_to_nearest_multiple(current_timestamp, config::SNAPSHOT_CALCULATION_INTERVAL as u64) as u32;
 	blob_timestamp.write(&mut blob).unwrap();
 
 	0u32.write(&mut blob).unwrap(); // node count
@@ -136,7 +141,7 @@ fn serialize_empty_blob(current_timestamp: u64) -> Vec<u8> {
 	blob
 }
 
-async fn serialize_delta(network_graph: Arc<NetworkGraph<TestLogger>>, last_sync_timestamp: u32) -> SerializedResponse {
+async fn serialize_delta<L: Deref + Clone>(network_graph: Arc<NetworkGraph<L>>, last_sync_timestamp: u32, logger: L) -> SerializedResponse where L::Target: Logger {
 	let (client, connection) = lookup::connect_to_db().await;
 
 	network_graph.remove_stale_channels_and_tracking();
@@ -170,12 +175,12 @@ async fn serialize_delta(network_graph: Arc<NetworkGraph<TestLogger>>, last_sync
 	};
 
 	let mut delta_set = DeltaSet::new();
-	lookup::fetch_channel_announcements(&mut delta_set, network_graph, &client, last_sync_timestamp).await;
-	println!("announcement channel count: {}", delta_set.len());
-	lookup::fetch_channel_updates(&mut delta_set, &client, last_sync_timestamp).await;
-	println!("update-fetched channel count: {}", delta_set.len());
-	lookup::filter_delta_set(&mut delta_set);
-	println!("update-filtered channel count: {}", delta_set.len());
+	lookup::fetch_channel_announcements(&mut delta_set, network_graph, &client, last_sync_timestamp, logger.clone()).await;
+	log_info!(logger, "announcement channel count: {}", delta_set.len());
+	lookup::fetch_channel_updates(&mut delta_set, &client, last_sync_timestamp, logger.clone()).await;
+	log_info!(logger, "update-fetched channel count: {}", delta_set.len());
+	lookup::filter_delta_set(&mut delta_set, logger.clone());
+	log_info!(logger, "update-filtered channel count: {}", delta_set.len());
 	let serialization_details = serialization::serialize_delta_set(delta_set, last_sync_timestamp);
 
 	// process announcements
@@ -246,8 +251,8 @@ async fn serialize_delta(network_graph: Arc<NetworkGraph<TestLogger>>, last_sync
 
 	prefixed_output.append(&mut output);
 
-	println!("duplicated node ids: {}", duplicate_node_ids);
-	println!("latest seen timestamp: {:?}", serialization_details.latest_seen);
+	log_info!(logger, "duplicated node ids: {}", duplicate_node_ids);
+	log_info!(logger, "latest seen timestamp: {:?}", serialization_details.latest_seen);
 
 	SerializedResponse {
 		data: prefixed_output,

src/lookup.rs

@@ -1,6 +1,6 @@
 use std::collections::{BTreeMap, HashSet};
 use std::io::Cursor;
-use std::ops::Add;
+use std::ops::{Add, Deref};
 use std::sync::Arc;
 use std::time::{Duration, Instant, SystemTime};
 
@@ -11,8 +11,10 @@ use tokio_postgres::{Client, Connection, NoTls, Socket};
 use tokio_postgres::tls::NoTlsStream;
 
 use futures::StreamExt;
+use lightning::log_info;
+use lightning::util::logger::Logger;
 
-use crate::{config, TestLogger};
+use crate::config;
 use crate::serialization::MutatedProperties;
 
 /// The delta set needs to be a BTreeMap so the keys are sorted.
@@ -75,20 +77,20 @@ pub(super) async fn connect_to_db() -> (Client, Connection<Socket, NoTlsStream>)
 /// whether they had been seen before.
 /// Also include all announcements for which the first update was announced
 /// after `last_sync_timestamp`
-pub(super) async fn fetch_channel_announcements(delta_set: &mut DeltaSet, network_graph: Arc<NetworkGraph<TestLogger>>, client: &Client, last_sync_timestamp: u32) {
-	println!("Obtaining channel ids from network graph");
+pub(super) async fn fetch_channel_announcements<L: Deref>(delta_set: &mut DeltaSet, network_graph: Arc<NetworkGraph<L>>, client: &Client, last_sync_timestamp: u32, logger: L) where L::Target: Logger {
+	log_info!(logger, "Obtaining channel ids from network graph");
 	let last_sync_timestamp_object = SystemTime::UNIX_EPOCH.add(Duration::from_secs(last_sync_timestamp as u64));
 	let channel_ids = {
 		let read_only_graph = network_graph.read_only();
-		println!("Retrieved read-only network graph copy");
+		log_info!(logger, "Retrieved read-only network graph copy");
 		let channel_iterator = read_only_graph.channels().unordered_iter();
 		channel_iterator
 			.filter(|c| c.1.announcement_message.is_some())
 			.map(|c| c.1.announcement_message.as_ref().unwrap().contents.short_channel_id as i64)
 			.collect::<Vec<_>>()
 	};
 
-	println!("Obtaining corresponding database entries");
+	log_info!(logger, "Obtaining corresponding database entries");
 	// get all the channel announcements that are currently in the network graph
 	let announcement_rows = client.query_raw("SELECT announcement_signed, seen FROM channel_announcements WHERE short_channel_id = any($1) ORDER BY short_channel_id ASC", [&channel_ids]).await.unwrap();
 	let mut pinned_rows = Box::pin(announcement_rows);
@@ -113,7 +115,7 @@ pub(super) async fn fetch_channel_announcements(delta_set: &mut DeltaSet, networ
 	{
 		// THIS STEP IS USED TO DETERMINE IF A CHANNEL SHOULD BE OMITTED FROM THE DELTA
 
-		println!("Annotating channel announcements whose oldest channel update in a given direction occurred after the last sync");
+		log_info!(logger, "Annotating channel announcements whose oldest channel update in a given direction occurred after the last sync");
 		// Steps:
 		// — Obtain all updates, distinct by (scid, direction), ordered by seen DESC // to find the oldest update in a given direction
 		// — From those updates, select distinct by (scid), ordered by seen DESC (to obtain the newer one per direction)
@@ -155,7 +157,7 @@ pub(super) async fn fetch_channel_announcements(delta_set: &mut DeltaSet, networ
 	{
 		// THIS STEP IS USED TO DETERMINE IF A REMINDER UPDATE SHOULD BE SENT
 
-		println!("Annotating channel announcements whose latest channel update in a given direction occurred more than six days ago");
+		log_info!(logger, "Annotating channel announcements whose latest channel update in a given direction occurred more than six days ago");
 		// Steps:
 		// — Obtain all updates, distinct by (scid, direction), ordered by seen DESC
 		// — From those updates, select distinct by (scid), ordered by seen ASC (to obtain the older one per direction)
@@ -213,7 +215,7 @@ pub(super) async fn fetch_channel_announcements(delta_set: &mut DeltaSet, networ
 	}
 }
 
-pub(super) async fn fetch_channel_updates(delta_set: &mut DeltaSet, client: &Client, last_sync_timestamp: u32) {
+pub(super) async fn fetch_channel_updates<L: Deref>(delta_set: &mut DeltaSet, client: &Client, last_sync_timestamp: u32, logger: L) where L::Target: Logger {
 	let start = Instant::now();
 	let last_sync_timestamp_object = SystemTime::UNIX_EPOCH.add(Duration::from_secs(last_sync_timestamp as u64));
 
@@ -235,7 +237,7 @@ pub(super) async fn fetch_channel_updates(delta_set: &mut DeltaSet, client: &Cli
 		", [last_sync_timestamp_object]).await.unwrap();
 	let mut pinned_rows = Box::pin(reference_rows);
 
-	println!("Fetched reference rows in {:?}", start.elapsed());
+	log_info!(logger, "Fetched reference rows in {:?}", start.elapsed());
 
 	let mut last_seen_update_ids: Vec<i32> = Vec::new();
 	let mut non_intermediate_ids: HashSet<i32> = HashSet::new();
@@ -263,7 +265,7 @@ pub(super) async fn fetch_channel_updates(delta_set: &mut DeltaSet, client: &Cli
 		reference_row_count += 1;
 	}
 
-	println!("Processed {} reference rows (delta size: {}) in {:?}",
+	log_info!(logger, "Processed {} reference rows (delta size: {}) in {:?}",
 		reference_row_count, delta_set.len(), start.elapsed());
 
 	// get all the intermediate channel updates
@@ -276,7 +278,7 @@ pub(super) async fn fetch_channel_updates(delta_set: &mut DeltaSet, client: &Cli
 		WHERE seen >= $1
 		", [last_sync_timestamp_object]).await.unwrap();
 	let mut pinned_updates = Box::pin(intermediate_updates);
-	println!("Fetched intermediate rows in {:?}", start.elapsed());
+	log_info!(logger, "Fetched intermediate rows in {:?}", start.elapsed());
 
 	let mut previous_scid = u64::MAX;
 	let mut previously_seen_directions = (false, false);
@@ -351,10 +353,10 @@ pub(super) async fn fetch_channel_updates(delta_set: &mut DeltaSet, client: &Cli
 			}
 		}
 	}
-	println!("Processed intermediate rows ({}) (delta size: {}): {:?}", intermediate_update_count, delta_set.len(), start.elapsed());
+	log_info!(logger, "Processed intermediate rows ({}) (delta size: {}): {:?}", intermediate_update_count, delta_set.len(), start.elapsed());
 }
 
-pub(super) fn filter_delta_set(delta_set: &mut DeltaSet) {
+pub(super) fn filter_delta_set<L: Deref>(delta_set: &mut DeltaSet, logger: L) where L::Target: Logger {
 	let original_length = delta_set.len();
 	let keys: Vec<u64> = delta_set.keys().cloned().collect();
 	for k in keys {
@@ -386,6 +388,6 @@ pub(super) fn filter_delta_set(delta_set: &mut DeltaSet) {
 
 	let new_length = delta_set.len();
 	if original_length != new_length {
-		println!("length modified!");
+		log_info!(logger, "length modified!");
 	}
 }

src/main.rs

@@ -1,6 +1,9 @@
+use std::sync::Arc;
 use rapid_gossip_sync_server::RapidSyncProcessor;
+use rapid_gossip_sync_server::types::RGSSLogger;
 
 #[tokio::main]
 async fn main() {
-	RapidSyncProcessor::new().start_sync().await;
+	let logger = Arc::new(RGSSLogger::new());
+	RapidSyncProcessor::new(logger).start_sync().await;
 }