Avoid logging full node IDs

src/client.rs

@@ -79,10 +79,11 @@ impl ClientConn {
 		read.read_exact(&mut their_version_tag[..]).await?;
 		if their_version_tag != netapp.version_tag {
 			let msg = format!(
-				"Different netapp versions: {:?} (theirs) vs. {:?} (ours)",
+				"different version tags: {} (theirs) vs. {} (ours)",
-				their_version_tag, netapp.version_tag
+				hex::encode(their_version_tag),
+				hex::encode(netapp.version_tag)
 			);
-			error!("{}", msg);
+			error!("Cannot connect to {}: {}", hex::encode(&peer_id[..8]), msg);
 			return Err(Error::VersionMismatch(msg));
 		}
 

src/endpoint.rs

@@ -114,7 +114,7 @@ where
 			match conn {
 				None => Err(Error::Message(format!(
 					"Not connected: {}",
-					hex::encode(target)
+					hex::encode(&target[..8])
 				))),
 				Some(c) => c.call(req, self.path.as_str(), prio).await,
 			}

src/netapp.rs

@@ -307,7 +307,7 @@ impl NetApp {
 			if let Some(c) = conn {
 				debug!(
 					"Closing connection to {} ({})",
-					hex::encode(c.peer_id),
+					hex::encode(&c.peer_id[..8]),
 					c.remote_addr
 				);
 				c.close();
@@ -334,7 +334,11 @@ impl NetApp {
 	// has an actual IP address and port we can call them back on.
 	// We will know this when they send a Hello message, which is handled below.
 	pub(crate) fn connected_as_server(&self, id: NodeID, conn: Arc<ServerConn>) {
-		info!("Accepted connection from {}", hex::encode(id));
+		info!(
+			"Accepted connection from {} at {}",
+			hex::encode(&id[..8]),
+			conn.remote_addr
+		);
 
 		self.server_conns.write().unwrap().insert(id, conn);
 	}
@@ -349,7 +353,7 @@ impl NetApp {
 	// We deregister the connection from server_conns and call the
 	// handler registered by on_disconnected
 	pub(crate) fn disconnected_as_server(&self, id: &NodeID, conn: Arc<ServerConn>) {
-		info!("Connection from {} closed", hex::encode(id));
+		info!("Connection from {} closed", hex::encode(&id[..8]));
 
 		let mut conn_list = self.server_conns.write().unwrap();
 		if let Some(c) = conn_list.get(id) {
@@ -372,7 +376,7 @@ impl NetApp {
 	// they know on which port to call us back. (TODO: don't do this if we are
 	// just a simple client and not a full p2p node)
 	pub(crate) fn connected_as_client(&self, id: NodeID, conn: Arc<ClientConn>) {
-		info!("Connection established to {}", hex::encode(id));
+		info!("Connection established to {}", hex::encode(&id[..8]));
 
 		{
 			let old_c_opt = self.client_conns.write().unwrap().insert(id, conn.clone());
@@ -409,7 +413,7 @@ impl NetApp {
 	// The connection is removed from conn_list, and the on_disconnected handler
 	// is called.
 	pub(crate) fn disconnected_as_client(&self, id: &NodeID, conn: Arc<ClientConn>) {
-		info!("Connection to {} closed", hex::encode(id));
+		info!("Connection to {} closed", hex::encode(&id[..8]));
 		let mut conn_list = self.client_conns.write().unwrap();
 		if let Some(c) = conn_list.get(id) {
 			if Arc::ptr_eq(c, &conn) {
@@ -429,7 +433,7 @@ impl NetApp {
 #[async_trait]
 impl EndpointHandler<HelloMessage> for NetApp {
 	async fn handle(self: &Arc<Self>, msg: &HelloMessage, from: NodeID) {
-		debug!("Hello from {:?}: {:?}", hex::encode(from), msg);
+		debug!("Hello from {:?}: {:?}", hex::encode(&from[..8]), msg);
 		if let Some(h) = self.on_connected_handler.load().as_ref() {
 			if let Some(c) = self.server_conns.read().unwrap().get(&from) {
 				let remote_ip = msg.server_addr.unwrap_or_else(|| c.remote_addr.ip());

src/peering/fullmesh.rs

@@ -236,7 +236,7 @@ impl FullMeshPeeringStrategy {
 				let mut to_ping = vec![];
 				let mut to_retry = vec![];
 				for (id, info) in known_hosts.list.iter() {
-					trace!("{}, {:?}", hex::encode(id), info);
+					trace!("{}, {:?}", hex::encode(&id[..8]), info);
 					match info.state {
 						PeerConnState::Connected => {
 							let must_ping = match info.last_seen {
@@ -273,7 +273,7 @@ impl FullMeshPeeringStrategy {
 						if let PeerConnState::Waiting(i, _) = h.state {
 							info!(
 								"Retrying connection to {} at {} ({})",
-								hex::encode(&id),
+								hex::encode(&id[..8]),
 								h.addr,
 								i + 1
 							);
@@ -344,16 +344,16 @@ impl FullMeshPeeringStrategy {
 		debug!(
 			"Sending ping {} to {} at {:?}",
 			ping_id,
-			hex::encode(id),
+			hex::encode(&id[..8]),
 			ping_time
 		);
 		match self.ping_endpoint.call(&id, &ping_msg, PRIO_HIGH).await {
-			Err(e) => warn!("Error pinging {}: {}", hex::encode(id), e),
+			Err(e) => warn!("Error pinging {}: {}", hex::encode(&id[..8]), e),
 			Ok(ping_resp) => {
 				let resp_time = Instant::now();
 				debug!(
 					"Got ping response from {} at {:?}",
-					hex::encode(id),
+					hex::encode(&id[..8]),
 					resp_time
 				);
 				{
@@ -409,7 +409,7 @@ impl FullMeshPeeringStrategy {
 	async fn try_connect(self: Arc<Self>, id: NodeID, addr: SocketAddr) {
 		let conn_result = self.netapp.clone().try_connect(addr, id).await;
 		if let Err(e) = conn_result {
-			warn!("Error connecting to {}: {}", hex::encode(id), e);
+			warn!("Error connecting to {}: {}", hex::encode(&id[..8]), e);
 			let mut known_hosts = self.known_hosts.write().unwrap();
 			if let Some(host) = known_hosts.list.get_mut(&id) {
 				host.state = match host.state {
@@ -438,7 +438,11 @@ impl FullMeshPeeringStrategy {
 				self.update_public_peer_list(&known_hosts);
 			}
 		} else {
-			info!("Successfully connected to {} at {}", hex::encode(&id), addr);
+			info!(
+				"Successfully connected to {} at {}",
+				hex::encode(&id[..8]),
+				addr
+			);
 			let mut known_hosts = self.known_hosts.write().unwrap();
 			if let Some(host) = known_hosts.list.get_mut(&id) {
 				host.state = PeerConnState::Connected;
@@ -461,7 +465,7 @@ impl FullMeshPeeringStrategy {
 
 	fn on_disconnected(self: Arc<Self>, id: NodeID, is_incoming: bool) {
 		if !is_incoming {
-			info!("Connection to {} was closed", hex::encode(id));
+			info!("Connection to {} was closed", hex::encode(&id[..8]));
 			let mut known_hosts = self.known_hosts.write().unwrap();
 			if let Some(host) = known_hosts.list.get_mut(&id) {
 				host.state = PeerConnState::Waiting(0, Instant::now());
@@ -493,7 +497,7 @@ impl EndpointHandler<PingMessage> for FullMeshPeeringStrategy {
 			id: ping.id,
 			peer_list_hash: self.known_hosts.read().unwrap().hash,
 		};
-		debug!("Ping from {}", hex::encode(&from));
+		debug!("Ping from {}", hex::encode(&from[..8]));
 		ping_resp
 	}
 }