Allow setting custom gossip seen timestamps.
[rapid-gossip-sync-server] / src / persistence.rs
index 00ca70d892aab814a32099870767f976276e74e5..7b451b7ec252970050d908f231603730b13fd50a 100644 (file)
@@ -1,40 +1,38 @@
 use std::fs::OpenOptions;
 use std::io::{BufWriter, Write};
+use std::ops::Deref;
 use std::sync::Arc;
 use std::time::{Duration, Instant};
+use lightning::log_info;
 use lightning::routing::gossip::NetworkGraph;
+use lightning::util::logger::Logger;
 use lightning::util::ser::Writeable;
 use tokio::sync::mpsc;
-use tokio_postgres::NoTls;
 
-use crate::{config, hex_utils, TestLogger};
+use crate::config;
 use crate::types::GossipMessage;
 
-pub(crate) struct GossipPersister {
+const POSTGRES_INSERT_TIMEOUT: Duration = Duration::from_secs(15);
+
+pub(crate) struct GossipPersister<L: Deref> where L::Target: Logger {
        gossip_persistence_receiver: mpsc::Receiver<GossipMessage>,
-       network_graph: Arc<NetworkGraph<TestLogger>>,
+       network_graph: Arc<NetworkGraph<L>>,
+       logger: L
 }
 
-impl GossipPersister {
-       pub fn new(network_graph: Arc<NetworkGraph<TestLogger>>) -> (Self, mpsc::Sender<GossipMessage>) {
+impl<L: Deref> GossipPersister<L> where L::Target: Logger {
+       pub fn new(network_graph: Arc<NetworkGraph<L>>, logger: L) -> (Self, mpsc::Sender<GossipMessage>) {
                let (gossip_persistence_sender, gossip_persistence_receiver) =
                        mpsc::channel::<GossipMessage>(100);
                (GossipPersister {
                        gossip_persistence_receiver,
-                       network_graph
+                       network_graph,
+                       logger
                }, gossip_persistence_sender)
        }
 
        pub(crate) async fn persist_gossip(&mut self) {
-               let connection_config = config::db_connection_config();
-               let (client, connection) =
-                       connection_config.connect(NoTls).await.unwrap();
-
-               tokio::spawn(async move {
-                       if let Err(e) = connection.await {
-                               panic!("connection error: {}", e);
-                       }
-               });
+               let mut client = crate::connect_to_db().await;
 
                {
                        // initialize the database
@@ -45,6 +43,16 @@ impl GossipPersister {
                                panic!("db init error: {}", initialization_error);
                        }
 
+                       let cur_schema = client.query("SELECT db_schema FROM config WHERE id = $1", &[&1]).await.unwrap();
+                       if !cur_schema.is_empty() {
+                               config::upgrade_db(cur_schema[0].get(0), &mut client).await;
+                       }
+
+                       let preparation = client.execute("set time zone UTC", &[]).await;
+                       if let Err(preparation_error) = preparation {
+                               panic!("db preparation error: {}", preparation_error);
+                       }
+
                        let initialization = client
                                .execute(
                                        // TODO: figure out a way to fix the id value without Postgres complaining about
@@ -92,7 +100,7 @@ impl GossipPersister {
                        i += 1; // count the persisted gossip messages
 
                        if latest_persistence_log.elapsed().as_secs() >= 60 {
-                               println!("Persisting gossip message #{}", i);
+                               log_info!(self.logger, "Persisting gossip message #{}", i);
                                latest_persistence_log = Instant::now();
                        }
 
@@ -103,50 +111,29 @@ impl GossipPersister {
                        }
 
                        match &gossip_message {
-                               GossipMessage::ChannelAnnouncement(announcement) => {
-                                       let scid = announcement.contents.short_channel_id;
-                                       let scid_hex = hex_utils::hex_str(&scid.to_be_bytes());
-                                       // scid is 8 bytes
-                                       // block height is the first three bytes
-                                       // to obtain block height, shift scid right by 5 bytes (40 bits)
-                                       let block_height = (scid >> 5 * 8) as i32;
-                                       let chain_hash = announcement.contents.chain_hash.as_ref();
-                                       let chain_hash_hex = hex_utils::hex_str(chain_hash);
+                               GossipMessage::ChannelAnnouncement(announcement, _) => {
+                                       let scid = announcement.contents.short_channel_id as i64;
 
                                        // start with the type prefix, which is already known a priori
                                        let mut announcement_signed = Vec::new();
                                        announcement.write(&mut announcement_signed).unwrap();
 
-                                       let result = client
+                                       tokio::time::timeout(POSTGRES_INSERT_TIMEOUT, client
                                                .execute("INSERT INTO channel_announcements (\
                                                        short_channel_id, \
-                                                       block_height, \
-                                                       chain_hash, \
                                                        announcement_signed \
-                                               ) VALUES ($1, $2, $3, $4) ON CONFLICT (short_channel_id) DO NOTHING", &[
-                                                       &scid_hex,
-                                                       &block_height,
-                                                       &chain_hash_hex,
+                                               ) VALUES ($1, $2) ON CONFLICT (short_channel_id) DO NOTHING", &[
+                                                       &scid,
                                                        &announcement_signed
-                                               ]).await;
-                                       if result.is_err() {
-                                               panic!("error: {}", result.err().unwrap());
-                                       }
+                                               ])).await.unwrap().unwrap();
                                }
-                               GossipMessage::ChannelUpdate(update) => {
-                                       let scid = update.contents.short_channel_id;
-                                       let scid_hex = hex_utils::hex_str(&scid.to_be_bytes());
-
-                                       let chain_hash = update.contents.chain_hash.as_ref();
-                                       let chain_hash_hex = hex_utils::hex_str(chain_hash);
+                               GossipMessage::ChannelUpdate(update, seen_override) => {
+                                       let scid = update.contents.short_channel_id as i64;
 
                                        let timestamp = update.contents.timestamp as i64;
 
-                                       let channel_flags = update.contents.flags as i32;
-                                       let direction = channel_flags & 1;
-                                       let disable = (channel_flags & 2) > 0;
-
-                                       let composite_index = format!("{}:{}:{}", scid_hex, timestamp, direction);
+                                       let direction = (update.contents.flags & 1) == 1;
+                                       let disable = (update.contents.flags & 2) > 0;
 
                                        let cltv_expiry_delta = update.contents.cltv_expiry_delta as i32;
                                        let htlc_minimum_msat = update.contents.htlc_minimum_msat as i64;
@@ -159,10 +146,23 @@ impl GossipPersister {
                                        let mut update_signed = Vec::new();
                                        update.write(&mut update_signed).unwrap();
 
-                                       let result = client
-                                               .execute("INSERT INTO channel_updates (\
-                                                       composite_index, \
-                                                       chain_hash, \
+                                       let insertion_statement = if cfg!(test) {
+                                               "INSERT INTO channel_updates (\
+                                                       short_channel_id, \
+                                                       timestamp, \
+                                                       seen, \
+                                                       channel_flags, \
+                                                       direction, \
+                                                       disable, \
+                                                       cltv_expiry_delta, \
+                                                       htlc_minimum_msat, \
+                                                       fee_base_msat, \
+                                                       fee_proportional_millionths, \
+                                                       htlc_maximum_msat, \
+                                                       blob_signed \
+                                               ) VALUES ($1, $2, TO_TIMESTAMP($3), $4, $5, $6, $7, $8, $9, $10, $11, $12)  ON CONFLICT DO NOTHING"
+                                       } else {
+                                               "INSERT INTO channel_updates (\
                                                        short_channel_id, \
                                                        timestamp, \
                                                        channel_flags, \
@@ -174,12 +174,19 @@ impl GossipPersister {
                                                        fee_proportional_millionths, \
                                                        htlc_maximum_msat, \
                                                        blob_signed \
-                                               ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13)  ON CONFLICT (composite_index) DO NOTHING", &[
-                                                       &composite_index,
-                                                       &chain_hash_hex,
-                                                       &scid_hex,
+                                               ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)  ON CONFLICT DO NOTHING"
+                                       };
+
+                                       // this may not be used outside test cfg
+                                       let _seen_timestamp = seen_override.unwrap_or(timestamp as u32) as f64;
+
+                                       tokio::time::timeout(POSTGRES_INSERT_TIMEOUT, client
+                                               .execute(insertion_statement, &[
+                                                       &scid,
                                                        &timestamp,
-                                                       &channel_flags,
+                                                       #[cfg(test)]
+                                                               &_seen_timestamp,
+                                                       &(update.contents.flags as i16),
                                                        &direction,
                                                        &disable,
                                                        &cltv_expiry_delta,
@@ -188,17 +195,14 @@ impl GossipPersister {
                                                        &fee_proportional_millionths,
                                                        &htlc_maximum_msat,
                                                        &update_signed
-                                               ]).await;
-                                       if result.is_err() {
-                                               panic!("error: {}", result.err().unwrap());
-                                       }
+                                               ])).await.unwrap().unwrap();
                                }
                        }
                }
        }
 
        fn persist_network_graph(&self) {
-               println!("Caching network graph…");
+               log_info!(self.logger, "Caching network graph…");
                let cache_path = config::network_graph_cache_path();
                let file = OpenOptions::new()
                        .create(true)
@@ -206,10 +210,10 @@ impl GossipPersister {
                        .truncate(true)
                        .open(&cache_path)
                        .unwrap();
-               self.network_graph.remove_stale_channels();
+               self.network_graph.remove_stale_channels_and_tracking();
                let mut writer = BufWriter::new(file);
                self.network_graph.write(&mut writer).unwrap();
                writer.flush().unwrap();
-               println!("Cached network graph!");
+               log_info!(self.logger, "Cached network graph!");
        }
 }