use crate::cli;
use bitcoin::secp256k1::key::PublicKey;
use bitcoin::BlockHash;
+use chrono::Utc;
use lightning::routing::network_graph::NetworkGraph;
+use lightning::routing::scoring::{ProbabilisticScorer, ProbabilisticScoringParameters};
use lightning::util::logger::{Logger, Record};
-use lightning::util::ser::{Readable, Writeable, Writer};
+use lightning::util::ser::{Readable, ReadableArgs, Writeable, Writer};
use std::collections::HashMap;
use std::fs;
use std::fs::File;
use std::io::{BufRead, BufReader, BufWriter};
use std::net::SocketAddr;
use std::path::Path;
-use time::OffsetDateTime;
+use std::sync::Arc;
pub(crate) struct FilesystemLogger {
data_dir: String,
let raw_log = record.args.to_string();
let log = format!(
"{} {:<5} [{}:{}] {}\n",
- OffsetDateTime::now_utc().format("%F %T"),
+ // Note that a "real" lightning node almost certainly does *not* want subsecond
+ // precision for message-receipt information as it makes log entries a target for
+ // deanonymization attacks. For testing, however, its quite useful.
+ Utc::now().format("%Y-%m-%d %H:%M:%S%.3f"),
record.level.to_string(),
record.module_path,
record.line,
}
NetworkGraph::new(genesis_hash)
}
+
+pub(crate) fn persist_scorer(
+ path: &Path, scorer: &ProbabilisticScorer<Arc<NetworkGraph>>,
+) -> std::io::Result<()> {
+ let mut tmp_path = path.to_path_buf().into_os_string();
+ tmp_path.push(".tmp");
+ let file = fs::OpenOptions::new().write(true).create(true).open(&tmp_path)?;
+ let write_res = scorer.write(&mut BufWriter::new(file));
+ if let Err(e) = write_res.and_then(|_| fs::rename(&tmp_path, path)) {
+ let _ = fs::remove_file(&tmp_path);
+ Err(e)
+ } else {
+ Ok(())
+ }
+}
+
+pub(crate) fn read_scorer(
+ path: &Path, graph: Arc<NetworkGraph>,
+) -> ProbabilisticScorer<Arc<NetworkGraph>> {
+ let params = ProbabilisticScoringParameters::default();
+ if let Ok(file) = File::open(path) {
+ if let Ok(scorer) =
+ ProbabilisticScorer::read(&mut BufReader::new(file), (params, Arc::clone(&graph)))
+ {
+ return scorer;
+ }
+ }
+ ProbabilisticScorer::new(params, graph)
+}