Regularly poll other dnsseeds for new addrs

[dnsseed-rust] / src / main.rs

diff --git a/src/main.rs b/src/main.rs
index be4c8fcfd07d32b52dd0f506f9b9f905a39ed914..be27835cf6b0df05fbd637b6f713deac21d76572 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -9,7 +9,7 @@ use std::collections::HashMap;
 use std::sync::{Arc, Mutex};
 use std::sync::atomic::{Ordering, AtomicBool};
 use std::time::{Duration, Instant};
-use std::net::SocketAddr;
+use std::net::{SocketAddr, ToSocketAddrs};
 
 use bitcoin_hashes::sha256d;
 
@@ -189,9 +189,30 @@ pub fn scan_node(scan_time: Instant, node: SocketAddr) {
        }));
 }
 
+fn poll_dnsseeds() {
+       tokio::spawn(future::lazy(|| {
+               let printer = unsafe { PRINTER.as_ref().unwrap() };
+               let store = unsafe { DATA_STORE.as_ref().unwrap() };
+
+               let mut new_addrs = 0;
+               for seed in ["seed.bitcoin.sipa.be", "dnsseed.bitcoin.dashjr.org", "seed.bitcoinstats.com", "seed.bitcoin.jonasschnelli.ch", "seed.btc.petertodd.org", "seed.bitcoin.sprovoost.nl", "dnsseed.emzy.de"].iter() {
+                       new_addrs += store.add_fresh_addrs((*seed, 8333u16).to_socket_addrs().unwrap_or(Vec::new().into_iter()));
+                       new_addrs += store.add_fresh_addrs((("x9.".to_string() + seed).as_str(), 8333u16).to_socket_addrs().unwrap_or(Vec::new().into_iter()));
+               }
+               printer.add_line(format!("Added {} new addresses from other DNS seeds", new_addrs), false);
+               Delay::new(Instant::now() + Duration::from_secs(60)).then(|_| {
+                       if !START_SHUTDOWN.load(Ordering::Relaxed) {
+                               poll_dnsseeds();
+                       }
+                       future::ok(())
+               })
+       }));
+}
+
 fn scan_net() {
        tokio::spawn(future::lazy(|| {
                let store = unsafe { DATA_STORE.as_ref().unwrap() };
+
                let mut scan_nodes = store.get_next_scan_nodes();
                let per_iter_time = Duration::from_millis(1000 / store.get_u64(U64Setting::ConnsPerSec));
                let start_time = Instant::now();
@@ -270,6 +291,7 @@ fn make_trusted_conn(trusted_sockaddr: SocketAddr) {
                                                if top_height >= starting_height as u64 {
                                                        if !SCANNING.swap(true, Ordering::SeqCst) {
                                                                scan_net();
+                                                               poll_dnsseeds();
                                                        }
                                                }
                                        } else {