_ Git - rust-lightning/blob - lightning/src/util/test_utils.rs

   1 use chain::chaininterface;
   2 use chain::chaininterface::ConfirmationTarget;
   3 use chain::transaction::OutPoint;
   4 use chain::keysinterface;
   5 use ln::channelmonitor;
   6 use ln::features::InitFeatures;
   7 use ln::msgs;
   8 use ln::msgs::LightningError;
   9 use ln::channelmonitor::HTLCUpdate;
  10 use util::enforcing_trait_impls::EnforcingChannelKeys;
  11 use util::events;
  12 use util::logger::{Logger, Level, Record};
  13 use util::ser::{Readable, ReadableArgs, Writer, Writeable};
  14
  15 use bitcoin::blockdata::transaction::Transaction;
  16 use bitcoin::blockdata::script::Script;
  17 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
  18 use bitcoin::network::constants::Network;
  19
  20 use secp256k1::{SecretKey, PublicKey};
  21
  22 use std::time::{SystemTime, UNIX_EPOCH};
  23 use std::sync::{Arc,Mutex};
  24 use std::{mem};
  25 use std::collections::{HashMap, HashSet};
  26
  27 pub struct TestVecWriter(pub Vec<u8>);
  28 impl Writer for TestVecWriter {
  29         fn write_all(&mut self, buf: &[u8]) -> Result<(), ::std::io::Error> {
  30                 self.0.extend_from_slice(buf);
  31                 Ok(())
  32         }
  33         fn size_hint(&mut self, size: usize) {
  34                 self.0.reserve_exact(size);
  35         }
  36 }
  37
  38 pub struct TestFeeEstimator {
  39         pub sat_per_kw: u64,
  40 }
  41 impl chaininterface::FeeEstimator for TestFeeEstimator {
  42         fn get_est_sat_per_1000_weight(&self, _confirmation_target: ConfirmationTarget) -> u64 {
  43                 self.sat_per_kw
  44         }
  45 }
  46
  47 pub struct TestChannelMonitor<'a> {
  48         pub added_monitors: Mutex<Vec<(OutPoint, channelmonitor::ChannelMonitor<EnforcingChannelKeys>)>>,
  49         pub latest_monitor_update_id: Mutex<HashMap<[u8; 32], (OutPoint, u64)>>,
  50         pub simple_monitor: channelmonitor::SimpleManyChannelMonitor<OutPoint, EnforcingChannelKeys, &'a chaininterface::BroadcasterInterface>,
  51         pub update_ret: Mutex<Result<(), channelmonitor::ChannelMonitorUpdateErr>>,
  52 }
  53 impl<'a> TestChannelMonitor<'a> {
  54         pub fn new(chain_monitor: Arc<chaininterface::ChainWatchInterface>, broadcaster: &'a chaininterface::BroadcasterInterface, logger: Arc<Logger>, fee_estimator: Arc<chaininterface::FeeEstimator>) -> Self {
  55                 Self {
  56                         added_monitors: Mutex::new(Vec::new()),
  57                         latest_monitor_update_id: Mutex::new(HashMap::new()),
  58                         simple_monitor: channelmonitor::SimpleManyChannelMonitor::new(chain_monitor, broadcaster, logger, fee_estimator),
  59                         update_ret: Mutex::new(Ok(())),
  60                 }
  61         }
  62 }
  63 impl<'a> channelmonitor::ManyChannelMonitor<EnforcingChannelKeys> for TestChannelMonitor<'a> {
  64         fn add_monitor(&self, funding_txo: OutPoint, monitor: channelmonitor::ChannelMonitor<EnforcingChannelKeys>) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> {
  65                 // At every point where we get a monitor update, we should be able to send a useful monitor
  66                 // to a watchtower and disk...
  67                 let mut w = TestVecWriter(Vec::new());
  68                 monitor.write_for_disk(&mut w).unwrap();
  69                 assert!(<(Sha256dHash, channelmonitor::ChannelMonitor<EnforcingChannelKeys>)>::read(
  70                                 &mut ::std::io::Cursor::new(&w.0), Arc::new(TestLogger::new())).unwrap().1 == monitor);
  71                 w.0.clear();
  72                 monitor.write_for_watchtower(&mut w).unwrap(); // This at least shouldn't crash...
  73                 self.added_monitors.lock().unwrap().push((funding_txo, monitor.clone()));
  74                 self.latest_monitor_update_id.lock().unwrap().insert(funding_txo.to_channel_id(), (funding_txo, monitor.get_latest_update_id()));
  75                 assert!(self.simple_monitor.add_monitor(funding_txo, monitor).is_ok());
  76                 self.update_ret.lock().unwrap().clone()
  77         }
  78
  79         fn update_monitor(&self, funding_txo: OutPoint, update: channelmonitor::ChannelMonitorUpdate) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> {
  80                 // Every monitor update should survive roundtrip
  81                 let mut w = TestVecWriter(Vec::new());
  82                 update.write(&mut w).unwrap();
  83                 assert!(channelmonitor::ChannelMonitorUpdate::read(
  84                                 &mut ::std::io::Cursor::new(&w.0)).unwrap() == update);
  85
  86                 self.latest_monitor_update_id.lock().unwrap().insert(funding_txo.to_channel_id(), (funding_txo, update.update_id));
  87                 assert!(self.simple_monitor.update_monitor(funding_txo, update).is_ok());
  88                 // At every point where we get a monitor update, we should be able to send a useful monitor
  89                 // to a watchtower and disk...
  90                 let monitors = self.simple_monitor.monitors.lock().unwrap();
  91                 let monitor = monitors.get(&funding_txo).unwrap();
  92                 w.0.clear();
  93                 monitor.write_for_disk(&mut w).unwrap();
  94                 assert!(<(Sha256dHash, channelmonitor::ChannelMonitor<EnforcingChannelKeys>)>::read(
  95                                 &mut ::std::io::Cursor::new(&w.0), Arc::new(TestLogger::new())).unwrap().1 == *monitor);
  96                 w.0.clear();
  97                 monitor.write_for_watchtower(&mut w).unwrap(); // This at least shouldn't crash...
  98                 self.added_monitors.lock().unwrap().push((funding_txo, monitor.clone()));
  99                 self.update_ret.lock().unwrap().clone()
 100         }
 101
 102         fn get_and_clear_pending_htlcs_updated(&self) -> Vec<HTLCUpdate> {
 103                 return self.simple_monitor.get_and_clear_pending_htlcs_updated();
 104         }
 105 }
 106
 107 pub struct TestBroadcaster {
 108         pub txn_broadcasted: Mutex<Vec<Transaction>>,
 109         pub broadcasted_txn: Mutex<HashSet<Sha256dHash>> // Temporary field while refactoring out tx duplication
 110 }
 111 impl chaininterface::BroadcasterInterface for TestBroadcaster {
 112         fn broadcast_transaction(&self, tx: &Transaction) {
 113                 {
 114                         if let Some(_) = self.broadcasted_txn.lock().unwrap().get(&tx.txid()) {
 115                                 // If commitment tx, HTLC-timeout or HTLC-Success, duplicate broadcast are still ok
 116                                 if tx.input[0].sequence == 0xfffffffd {
 117                                         return;
 118                                 }
 119                         }
 120                 }
 121                 self.broadcasted_txn.lock().unwrap().insert(tx.txid());
 122                 self.txn_broadcasted.lock().unwrap().push(tx.clone());
 123         }
 124 }
 125
 126 pub struct TestChannelMessageHandler {
 127         pub pending_events: Mutex<Vec<events::MessageSendEvent>>,
 128 }
 129
 130 impl TestChannelMessageHandler {
 131         pub fn new() -> Self {
 132                 TestChannelMessageHandler {
 133                         pending_events: Mutex::new(Vec::new()),
 134                 }
 135         }
 136 }
 137
 138 impl msgs::ChannelMessageHandler for TestChannelMessageHandler {
 139         fn handle_open_channel(&self, _their_node_id: &PublicKey, _their_features: InitFeatures, _msg: &msgs::OpenChannel) {}
 140         fn handle_accept_channel(&self, _their_node_id: &PublicKey, _their_features: InitFeatures, _msg: &msgs::AcceptChannel) {}
 141         fn handle_funding_created(&self, _their_node_id: &PublicKey, _msg: &msgs::FundingCreated) {}
 142         fn handle_funding_signed(&self, _their_node_id: &PublicKey, _msg: &msgs::FundingSigned) {}
 143         fn handle_funding_locked(&self, _their_node_id: &PublicKey, _msg: &msgs::FundingLocked) {}
 144         fn handle_shutdown(&self, _their_node_id: &PublicKey, _msg: &msgs::Shutdown) {}
 145         fn handle_closing_signed(&self, _their_node_id: &PublicKey, _msg: &msgs::ClosingSigned) {}
 146         fn handle_update_add_htlc(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateAddHTLC) {}
 147         fn handle_update_fulfill_htlc(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateFulfillHTLC) {}
 148         fn handle_update_fail_htlc(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateFailHTLC) {}
 149         fn handle_update_fail_malformed_htlc(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateFailMalformedHTLC) {}
 150         fn handle_commitment_signed(&self, _their_node_id: &PublicKey, _msg: &msgs::CommitmentSigned) {}
 151         fn handle_revoke_and_ack(&self, _their_node_id: &PublicKey, _msg: &msgs::RevokeAndACK) {}
 152         fn handle_update_fee(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateFee) {}
 153         fn handle_announcement_signatures(&self, _their_node_id: &PublicKey, _msg: &msgs::AnnouncementSignatures) {}
 154         fn handle_channel_reestablish(&self, _their_node_id: &PublicKey, _msg: &msgs::ChannelReestablish) {}
 155         fn peer_disconnected(&self, _their_node_id: &PublicKey, _no_connection_possible: bool) {}
 156         fn peer_connected(&self, _their_node_id: &PublicKey, _msg: &msgs::Init) {}
 157         fn handle_error(&self, _their_node_id: &PublicKey, _msg: &msgs::ErrorMessage) {}
 158 }
 159
 160 impl events::MessageSendEventsProvider for TestChannelMessageHandler {
 161         fn get_and_clear_pending_msg_events(&self) -> Vec<events::MessageSendEvent> {
 162                 let mut pending_events = self.pending_events.lock().unwrap();
 163                 let mut ret = Vec::new();
 164                 mem::swap(&mut ret, &mut *pending_events);
 165                 ret
 166         }
 167 }
 168
 169 pub struct TestRoutingMessageHandler {}
 170
 171 impl TestRoutingMessageHandler {
 172         pub fn new() -> Self {
 173                 TestRoutingMessageHandler {}
 174         }
 175 }
 176 impl msgs::RoutingMessageHandler for TestRoutingMessageHandler {
 177         fn handle_node_announcement(&self, _msg: &msgs::NodeAnnouncement) -> Result<bool, LightningError> {
 178                 Err(LightningError { err: "", action: msgs::ErrorAction::IgnoreError })
 179         }
 180         fn handle_channel_announcement(&self, _msg: &msgs::ChannelAnnouncement) -> Result<bool, LightningError> {
 181                 Err(LightningError { err: "", action: msgs::ErrorAction::IgnoreError })
 182         }
 183         fn handle_channel_update(&self, _msg: &msgs::ChannelUpdate) -> Result<bool, LightningError> {
 184                 Err(LightningError { err: "", action: msgs::ErrorAction::IgnoreError })
 185         }
 186         fn handle_htlc_fail_channel_update(&self, _update: &msgs::HTLCFailChannelUpdate) {}
 187         fn get_next_channel_announcements(&self, _starting_point: u64, _batch_amount: u8) -> Vec<(msgs::ChannelAnnouncement, msgs::ChannelUpdate,msgs::ChannelUpdate)> {
 188                 Vec::new()
 189         }
 190         fn get_next_node_announcements(&self, _starting_point: Option<&PublicKey>, _batch_amount: u8) -> Vec<msgs::NodeAnnouncement> {
 191                 Vec::new()
 192         }
 193         fn should_request_full_sync(&self, _node_id: &PublicKey) -> bool {
 194                 true
 195         }
 196 }
 197
 198 pub struct TestLogger {
 199         level: Level,
 200         id: String,
 201         pub lines: Mutex<HashMap<(String, String), usize>>,
 202 }
 203
 204 impl TestLogger {
 205         pub fn new() -> TestLogger {
 206                 Self::with_id("".to_owned())
 207         }
 208         pub fn with_id(id: String) -> TestLogger {
 209                 TestLogger {
 210                         level: Level::Trace,
 211                         id,
 212                         lines: Mutex::new(HashMap::new())
 213                 }
 214         }
 215         pub fn enable(&mut self, level: Level) {
 216                 self.level = level;
 217         }
 218         pub fn assert_log(&self, module: String, line: String, count: usize) {
 219                 let log_entries = self.lines.lock().unwrap();
 220                 assert_eq!(log_entries.get(&(module, line)), Some(&count));
 221         }
 222 }
 223
 224 impl Logger for TestLogger {
 225         fn log(&self, record: &Record) {
 226                 *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 227                 if self.level >= record.level {
 228                         println!("{:<5} {} [{} : {}, {}] {}", record.level.to_string(), self.id, record.module_path, record.file, record.line, record.args);
 229                 }
 230         }
 231 }
 232
 233 pub struct TestKeysInterface {
 234         backing: keysinterface::KeysManager,
 235         pub override_session_priv: Mutex<Option<SecretKey>>,
 236         pub override_channel_id_priv: Mutex<Option<[u8; 32]>>,
 237 }
 238
 239 impl keysinterface::KeysInterface for TestKeysInterface {
 240         type ChanKeySigner = EnforcingChannelKeys;
 241
 242         fn get_node_secret(&self) -> SecretKey { self.backing.get_node_secret() }
 243         fn get_destination_script(&self) -> Script { self.backing.get_destination_script() }
 244         fn get_shutdown_pubkey(&self) -> PublicKey { self.backing.get_shutdown_pubkey() }
 245         fn get_channel_keys(&self, inbound: bool, channel_value_satoshis: u64) -> EnforcingChannelKeys {
 246                 EnforcingChannelKeys::new(self.backing.get_channel_keys(inbound, channel_value_satoshis))
 247         }
 248
 249         fn get_onion_rand(&self) -> (SecretKey, [u8; 32]) {
 250                 match *self.override_session_priv.lock().unwrap() {
 251                         Some(key) => (key.clone(), [0; 32]),
 252                         None => self.backing.get_onion_rand()
 253                 }
 254         }
 255
 256         fn get_channel_id(&self) -> [u8; 32] {
 257                 match *self.override_channel_id_priv.lock().unwrap() {
 258                         Some(key) => key.clone(),
 259                         None => self.backing.get_channel_id()
 260                 }
 261         }
 262 }
 263
 264 impl TestKeysInterface {
 265         pub fn new(seed: &[u8; 32], network: Network, logger: Arc<Logger>) -> Self {
 266                 let now = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time went backwards");
 267                 Self {
 268                         backing: keysinterface::KeysManager::new(seed, network, logger, now.as_secs(), now.subsec_nanos()),
 269                         override_session_priv: Mutex::new(None),
 270                         override_channel_id_priv: Mutex::new(None),
 271                 }
 272         }
 273 }