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

   1 // This file is Copyright its original authors, visible in version control
   2 // history.
   3 //
   4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
   5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
   7 // You may not use this file except in accordance with one or both of these
   8 // licenses.
   9
  10 use crate::chain;
  11 use crate::chain::WatchedOutput;
  12 use crate::chain::chaininterface;
  13 use crate::chain::chaininterface::ConfirmationTarget;
  14 use crate::chain::chainmonitor;
  15 use crate::chain::chainmonitor::MonitorUpdateId;
  16 use crate::chain::channelmonitor;
  17 use crate::chain::channelmonitor::MonitorEvent;
  18 use crate::chain::transaction::OutPoint;
  19 use crate::chain::keysinterface;
  20 use crate::ln::channelmanager;
  21 use crate::ln::features::{ChannelFeatures, InitFeatures, NodeFeatures};
  22 use crate::ln::{msgs, wire};
  23 use crate::ln::script::ShutdownScript;
  24 use crate::routing::scoring::FixedPenaltyScorer;
  25 use crate::util::enforcing_trait_impls::{EnforcingSigner, EnforcementState};
  26 use crate::util::events;
  27 use crate::util::logger::{Logger, Level, Record};
  28 use crate::util::ser::{Readable, ReadableArgs, Writer, Writeable};
  29
  30 use bitcoin::blockdata::constants::genesis_block;
  31 use bitcoin::blockdata::transaction::{Transaction, TxOut};
  32 use bitcoin::blockdata::script::{Builder, Script};
  33 use bitcoin::blockdata::opcodes;
  34 use bitcoin::blockdata::block::Block;
  35 use bitcoin::network::constants::Network;
  36 use bitcoin::hash_types::{BlockHash, Txid};
  37
  38 use bitcoin::secp256k1::{SecretKey, PublicKey, Secp256k1, ecdsa::Signature, Scalar};
  39 use bitcoin::secp256k1::ecdh::SharedSecret;
  40 use bitcoin::secp256k1::ecdsa::RecoverableSignature;
  41
  42 use regex;
  43
  44 use crate::io;
  45 use crate::prelude::*;
  46 use core::time::Duration;
  47 use crate::sync::{Mutex, Arc};
  48 use core::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
  49 use core::mem;
  50 use bitcoin::bech32::u5;
  51 use crate::chain::keysinterface::{InMemorySigner, Recipient, KeyMaterial};
  52
  53 #[cfg(feature = "std")]
  54 use std::time::{SystemTime, UNIX_EPOCH};
  55 use bitcoin::Sequence;
  56
  57 pub struct TestVecWriter(pub Vec<u8>);
  58 impl Writer for TestVecWriter {
  59         fn write_all(&mut self, buf: &[u8]) -> Result<(), io::Error> {
  60                 self.0.extend_from_slice(buf);
  61                 Ok(())
  62         }
  63 }
  64
  65 pub struct TestFeeEstimator {
  66         pub sat_per_kw: Mutex<u32>,
  67 }
  68 impl chaininterface::FeeEstimator for TestFeeEstimator {
  69         fn get_est_sat_per_1000_weight(&self, _confirmation_target: ConfirmationTarget) -> u32 {
  70                 *self.sat_per_kw.lock().unwrap()
  71         }
  72 }
  73
  74 pub struct OnlyReadsKeysInterface {}
  75 impl keysinterface::KeysInterface for OnlyReadsKeysInterface {
  76         type Signer = EnforcingSigner;
  77
  78         fn get_node_secret(&self, _recipient: Recipient) -> Result<SecretKey, ()> { unreachable!(); }
  79         fn ecdh(&self, _recipient: Recipient, _other_key: &PublicKey, _tweak: Option<&Scalar>) -> Result<SharedSecret, ()> { unreachable!(); }
  80         fn get_inbound_payment_key_material(&self) -> KeyMaterial { unreachable!(); }
  81         fn get_destination_script(&self) -> Script { unreachable!(); }
  82         fn get_shutdown_scriptpubkey(&self) -> ShutdownScript { unreachable!(); }
  83         fn get_channel_signer(&self, _inbound: bool, _channel_value_satoshis: u64) -> EnforcingSigner { unreachable!(); }
  84         fn get_secure_random_bytes(&self) -> [u8; 32] { [0; 32] }
  85
  86         fn read_chan_signer(&self, mut reader: &[u8]) -> Result<Self::Signer, msgs::DecodeError> {
  87                 let dummy_sk = SecretKey::from_slice(&[42; 32]).unwrap();
  88                 let inner: InMemorySigner = ReadableArgs::read(&mut reader, dummy_sk)?;
  89                 let state = Arc::new(Mutex::new(EnforcementState::new()));
  90
  91                 Ok(EnforcingSigner::new_with_revoked(
  92                         inner,
  93                         state,
  94                         false
  95                 ))
  96         }
  97         fn sign_invoice(&self, _hrp_bytes: &[u8], _invoice_data: &[u5], _recipient: Recipient) -> Result<RecoverableSignature, ()> { unreachable!(); }
  98 }
  99
 100 pub struct TestChainMonitor<'a> {
 101         pub added_monitors: Mutex<Vec<(OutPoint, channelmonitor::ChannelMonitor<EnforcingSigner>)>>,
 102         pub monitor_updates: Mutex<HashMap<[u8; 32], Vec<channelmonitor::ChannelMonitorUpdate>>>,
 103         pub latest_monitor_update_id: Mutex<HashMap<[u8; 32], (OutPoint, u64, MonitorUpdateId)>>,
 104         pub chain_monitor: chainmonitor::ChainMonitor<EnforcingSigner, &'a TestChainSource, &'a chaininterface::BroadcasterInterface, &'a TestFeeEstimator, &'a TestLogger, &'a chainmonitor::Persist<EnforcingSigner>>,
 105         pub keys_manager: &'a TestKeysInterface,
 106         /// If this is set to Some(), the next update_channel call (not watch_channel) must be a
 107         /// ChannelForceClosed event for the given channel_id with should_broadcast set to the given
 108         /// boolean.
 109         pub expect_channel_force_closed: Mutex<Option<([u8; 32], bool)>>,
 110 }
 111 impl<'a> TestChainMonitor<'a> {
 112         pub fn new(chain_source: Option<&'a TestChainSource>, broadcaster: &'a chaininterface::BroadcasterInterface, logger: &'a TestLogger, fee_estimator: &'a TestFeeEstimator, persister: &'a chainmonitor::Persist<EnforcingSigner>, keys_manager: &'a TestKeysInterface) -> Self {
 113                 Self {
 114                         added_monitors: Mutex::new(Vec::new()),
 115                         monitor_updates: Mutex::new(HashMap::new()),
 116                         latest_monitor_update_id: Mutex::new(HashMap::new()),
 117                         chain_monitor: chainmonitor::ChainMonitor::new(chain_source, broadcaster, logger, fee_estimator, persister),
 118                         keys_manager,
 119                         expect_channel_force_closed: Mutex::new(None),
 120                 }
 121         }
 122
 123         pub fn complete_sole_pending_chan_update(&self, channel_id: &[u8; 32]) {
 124                 let (outpoint, _, latest_update) = self.latest_monitor_update_id.lock().unwrap().get(channel_id).unwrap().clone();
 125                 self.chain_monitor.channel_monitor_updated(outpoint, latest_update).unwrap();
 126         }
 127 }
 128 impl<'a> chain::Watch<EnforcingSigner> for TestChainMonitor<'a> {
 129         fn watch_channel(&self, funding_txo: OutPoint, monitor: channelmonitor::ChannelMonitor<EnforcingSigner>) -> chain::ChannelMonitorUpdateStatus {
 130                 // At every point where we get a monitor update, we should be able to send a useful monitor
 131                 // to a watchtower and disk...
 132                 let mut w = TestVecWriter(Vec::new());
 133                 monitor.write(&mut w).unwrap();
 134                 let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<EnforcingSigner>)>::read(
 135                         &mut io::Cursor::new(&w.0), self.keys_manager).unwrap().1;
 136                 assert!(new_monitor == monitor);
 137                 self.latest_monitor_update_id.lock().unwrap().insert(funding_txo.to_channel_id(),
 138                         (funding_txo, monitor.get_latest_update_id(), MonitorUpdateId::from_new_monitor(&monitor)));
 139                 self.added_monitors.lock().unwrap().push((funding_txo, monitor));
 140                 self.chain_monitor.watch_channel(funding_txo, new_monitor)
 141         }
 142
 143         fn update_channel(&self, funding_txo: OutPoint, update: channelmonitor::ChannelMonitorUpdate) -> chain::ChannelMonitorUpdateStatus {
 144                 // Every monitor update should survive roundtrip
 145                 let mut w = TestVecWriter(Vec::new());
 146                 update.write(&mut w).unwrap();
 147                 assert!(channelmonitor::ChannelMonitorUpdate::read(
 148                                 &mut io::Cursor::new(&w.0)).unwrap() == update);
 149
 150                 self.monitor_updates.lock().unwrap().entry(funding_txo.to_channel_id()).or_insert(Vec::new()).push(update.clone());
 151
 152                 if let Some(exp) = self.expect_channel_force_closed.lock().unwrap().take() {
 153                         assert_eq!(funding_txo.to_channel_id(), exp.0);
 154                         assert_eq!(update.updates.len(), 1);
 155                         if let channelmonitor::ChannelMonitorUpdateStep::ChannelForceClosed { should_broadcast } = update.updates[0] {
 156                                 assert_eq!(should_broadcast, exp.1);
 157                         } else { panic!(); }
 158                 }
 159
 160                 self.latest_monitor_update_id.lock().unwrap().insert(funding_txo.to_channel_id(),
 161                         (funding_txo, update.update_id, MonitorUpdateId::from_monitor_update(&update)));
 162                 let update_res = self.chain_monitor.update_channel(funding_txo, update);
 163                 // At every point where we get a monitor update, we should be able to send a useful monitor
 164                 // to a watchtower and disk...
 165                 let monitor = self.chain_monitor.get_monitor(funding_txo).unwrap();
 166                 w.0.clear();
 167                 monitor.write(&mut w).unwrap();
 168                 let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<EnforcingSigner>)>::read(
 169                         &mut io::Cursor::new(&w.0), self.keys_manager).unwrap().1;
 170                 assert!(new_monitor == *monitor);
 171                 self.added_monitors.lock().unwrap().push((funding_txo, new_monitor));
 172                 update_res
 173         }
 174
 175         fn release_pending_monitor_events(&self) -> Vec<(OutPoint, Vec<MonitorEvent>, Option<PublicKey>)> {
 176                 return self.chain_monitor.release_pending_monitor_events();
 177         }
 178 }
 179
 180 pub struct TestPersister {
 181         pub update_ret: Mutex<chain::ChannelMonitorUpdateStatus>,
 182         /// If this is set to Some(), after the next return, we'll always return this until update_ret
 183         /// is changed:
 184         pub next_update_ret: Mutex<Option<chain::ChannelMonitorUpdateStatus>>,
 185         /// When we get an update_persisted_channel call with no ChannelMonitorUpdate, we insert the
 186         /// MonitorUpdateId here.
 187         pub chain_sync_monitor_persistences: Mutex<HashMap<OutPoint, HashSet<MonitorUpdateId>>>,
 188         /// When we get an update_persisted_channel call *with* a ChannelMonitorUpdate, we insert the
 189         /// MonitorUpdateId here.
 190         pub offchain_monitor_updates: Mutex<HashMap<OutPoint, HashSet<MonitorUpdateId>>>,
 191 }
 192 impl TestPersister {
 193         pub fn new() -> Self {
 194                 Self {
 195                         update_ret: Mutex::new(chain::ChannelMonitorUpdateStatus::Completed),
 196                         next_update_ret: Mutex::new(None),
 197                         chain_sync_monitor_persistences: Mutex::new(HashMap::new()),
 198                         offchain_monitor_updates: Mutex::new(HashMap::new()),
 199                 }
 200         }
 201
 202         pub fn set_update_ret(&self, ret: chain::ChannelMonitorUpdateStatus) {
 203                 *self.update_ret.lock().unwrap() = ret;
 204         }
 205
 206         pub fn set_next_update_ret(&self, next_ret: Option<chain::ChannelMonitorUpdateStatus>) {
 207                 *self.next_update_ret.lock().unwrap() = next_ret;
 208         }
 209 }
 210 impl<Signer: keysinterface::Sign> chainmonitor::Persist<Signer> for TestPersister {
 211         fn persist_new_channel(&self, _funding_txo: OutPoint, _data: &channelmonitor::ChannelMonitor<Signer>, _id: MonitorUpdateId) -> chain::ChannelMonitorUpdateStatus {
 212                 let ret = self.update_ret.lock().unwrap().clone();
 213                 if let Some(next_ret) = self.next_update_ret.lock().unwrap().take() {
 214                         *self.update_ret.lock().unwrap() = next_ret;
 215                 }
 216                 ret
 217         }
 218
 219         fn update_persisted_channel(&self, funding_txo: OutPoint, update: &Option<channelmonitor::ChannelMonitorUpdate>, _data: &channelmonitor::ChannelMonitor<Signer>, update_id: MonitorUpdateId) -> chain::ChannelMonitorUpdateStatus {
 220                 let ret = self.update_ret.lock().unwrap().clone();
 221                 if let Some(next_ret) = self.next_update_ret.lock().unwrap().take() {
 222                         *self.update_ret.lock().unwrap() = next_ret;
 223                 }
 224                 if update.is_none() {
 225                         self.chain_sync_monitor_persistences.lock().unwrap().entry(funding_txo).or_insert(HashSet::new()).insert(update_id);
 226                 } else {
 227                         self.offchain_monitor_updates.lock().unwrap().entry(funding_txo).or_insert(HashSet::new()).insert(update_id);
 228                 }
 229                 ret
 230         }
 231 }
 232
 233 pub struct TestBroadcaster {
 234         pub txn_broadcasted: Mutex<Vec<Transaction>>,
 235         pub blocks: Arc<Mutex<Vec<(Block, u32)>>>,
 236 }
 237
 238 impl TestBroadcaster {
 239         pub fn new(blocks: Arc<Mutex<Vec<(Block, u32)>>>) -> TestBroadcaster {
 240                 TestBroadcaster { txn_broadcasted: Mutex::new(Vec::new()), blocks }
 241         }
 242 }
 243
 244 impl chaininterface::BroadcasterInterface for TestBroadcaster {
 245         fn broadcast_transaction(&self, tx: &Transaction) {
 246                 let lock_time = tx.lock_time.0;
 247                 assert!(lock_time < 1_500_000_000);
 248                 if lock_time > self.blocks.lock().unwrap().len() as u32 + 1 && lock_time < 500_000_000 {
 249                         for inp in tx.input.iter() {
 250                                 if inp.sequence != Sequence::MAX {
 251                                         panic!("We should never broadcast a transaction before its locktime ({})!", tx.lock_time);
 252                                 }
 253                         }
 254                 }
 255                 self.txn_broadcasted.lock().unwrap().push(tx.clone());
 256         }
 257 }
 258
 259 pub struct TestChannelMessageHandler {
 260         pub pending_events: Mutex<Vec<events::MessageSendEvent>>,
 261         expected_recv_msgs: Mutex<Option<Vec<wire::Message<()>>>>,
 262 }
 263
 264 impl TestChannelMessageHandler {
 265         pub fn new() -> Self {
 266                 TestChannelMessageHandler {
 267                         pending_events: Mutex::new(Vec::new()),
 268                         expected_recv_msgs: Mutex::new(None),
 269                 }
 270         }
 271
 272         #[cfg(test)]
 273         pub(crate) fn expect_receive_msg(&self, ev: wire::Message<()>) {
 274                 let mut expected_msgs = self.expected_recv_msgs.lock().unwrap();
 275                 if expected_msgs.is_none() { *expected_msgs = Some(Vec::new()); }
 276                 expected_msgs.as_mut().unwrap().push(ev);
 277         }
 278
 279         fn received_msg(&self, _ev: wire::Message<()>) {
 280                 let mut msgs = self.expected_recv_msgs.lock().unwrap();
 281                 if msgs.is_none() { return; }
 282                 assert!(!msgs.as_ref().unwrap().is_empty(), "Received message when we weren't expecting one");
 283                 #[cfg(test)]
 284                 assert_eq!(msgs.as_ref().unwrap()[0], _ev);
 285                 msgs.as_mut().unwrap().remove(0);
 286         }
 287 }
 288
 289 impl Drop for TestChannelMessageHandler {
 290         fn drop(&mut self) {
 291                 #[cfg(feature = "std")]
 292                 {
 293                         let l = self.expected_recv_msgs.lock().unwrap();
 294                         if !std::thread::panicking() {
 295                                 assert!(l.is_none() || l.as_ref().unwrap().is_empty());
 296                         }
 297                 }
 298         }
 299 }
 300
 301 impl msgs::ChannelMessageHandler for TestChannelMessageHandler {
 302         fn handle_open_channel(&self, _their_node_id: &PublicKey, _their_features: InitFeatures, msg: &msgs::OpenChannel) {
 303                 self.received_msg(wire::Message::OpenChannel(msg.clone()));
 304         }
 305         fn handle_accept_channel(&self, _their_node_id: &PublicKey, _their_features: InitFeatures, msg: &msgs::AcceptChannel) {
 306                 self.received_msg(wire::Message::AcceptChannel(msg.clone()));
 307         }
 308         fn handle_funding_created(&self, _their_node_id: &PublicKey, msg: &msgs::FundingCreated) {
 309                 self.received_msg(wire::Message::FundingCreated(msg.clone()));
 310         }
 311         fn handle_funding_signed(&self, _their_node_id: &PublicKey, msg: &msgs::FundingSigned) {
 312                 self.received_msg(wire::Message::FundingSigned(msg.clone()));
 313         }
 314         fn handle_channel_ready(&self, _their_node_id: &PublicKey, msg: &msgs::ChannelReady) {
 315                 self.received_msg(wire::Message::ChannelReady(msg.clone()));
 316         }
 317         fn handle_shutdown(&self, _their_node_id: &PublicKey, _their_features: &InitFeatures, msg: &msgs::Shutdown) {
 318                 self.received_msg(wire::Message::Shutdown(msg.clone()));
 319         }
 320         fn handle_closing_signed(&self, _their_node_id: &PublicKey, msg: &msgs::ClosingSigned) {
 321                 self.received_msg(wire::Message::ClosingSigned(msg.clone()));
 322         }
 323         fn handle_update_add_htlc(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateAddHTLC) {
 324                 self.received_msg(wire::Message::UpdateAddHTLC(msg.clone()));
 325         }
 326         fn handle_update_fulfill_htlc(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) {
 327                 self.received_msg(wire::Message::UpdateFulfillHTLC(msg.clone()));
 328         }
 329         fn handle_update_fail_htlc(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) {
 330                 self.received_msg(wire::Message::UpdateFailHTLC(msg.clone()));
 331         }
 332         fn handle_update_fail_malformed_htlc(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) {
 333                 self.received_msg(wire::Message::UpdateFailMalformedHTLC(msg.clone()));
 334         }
 335         fn handle_commitment_signed(&self, _their_node_id: &PublicKey, msg: &msgs::CommitmentSigned) {
 336                 self.received_msg(wire::Message::CommitmentSigned(msg.clone()));
 337         }
 338         fn handle_revoke_and_ack(&self, _their_node_id: &PublicKey, msg: &msgs::RevokeAndACK) {
 339                 self.received_msg(wire::Message::RevokeAndACK(msg.clone()));
 340         }
 341         fn handle_update_fee(&self, _their_node_id: &PublicKey, msg: &msgs::UpdateFee) {
 342                 self.received_msg(wire::Message::UpdateFee(msg.clone()));
 343         }
 344         fn handle_channel_update(&self, _their_node_id: &PublicKey, _msg: &msgs::ChannelUpdate) {
 345                 // Don't call `received_msg` here as `TestRoutingMessageHandler` generates these sometimes
 346         }
 347         fn handle_announcement_signatures(&self, _their_node_id: &PublicKey, msg: &msgs::AnnouncementSignatures) {
 348                 self.received_msg(wire::Message::AnnouncementSignatures(msg.clone()));
 349         }
 350         fn handle_channel_reestablish(&self, _their_node_id: &PublicKey, msg: &msgs::ChannelReestablish) {
 351                 self.received_msg(wire::Message::ChannelReestablish(msg.clone()));
 352         }
 353         fn peer_disconnected(&self, _their_node_id: &PublicKey, _no_connection_possible: bool) {}
 354         fn peer_connected(&self, _their_node_id: &PublicKey, _msg: &msgs::Init) -> Result<(), ()> {
 355                 // Don't bother with `received_msg` for Init as its auto-generated and we don't want to
 356                 // bother re-generating the expected Init message in all tests.
 357                 Ok(())
 358         }
 359         fn handle_error(&self, _their_node_id: &PublicKey, msg: &msgs::ErrorMessage) {
 360                 self.received_msg(wire::Message::Error(msg.clone()));
 361         }
 362         fn provided_node_features(&self) -> NodeFeatures {
 363                 channelmanager::provided_node_features()
 364         }
 365         fn provided_init_features(&self, _their_init_features: &PublicKey) -> InitFeatures {
 366                 channelmanager::provided_init_features()
 367         }
 368 }
 369
 370 impl events::MessageSendEventsProvider for TestChannelMessageHandler {
 371         fn get_and_clear_pending_msg_events(&self) -> Vec<events::MessageSendEvent> {
 372                 let mut pending_events = self.pending_events.lock().unwrap();
 373                 let mut ret = Vec::new();
 374                 mem::swap(&mut ret, &mut *pending_events);
 375                 ret
 376         }
 377 }
 378
 379 fn get_dummy_channel_announcement(short_chan_id: u64) -> msgs::ChannelAnnouncement {
 380         use bitcoin::secp256k1::ffi::Signature as FFISignature;
 381         let secp_ctx = Secp256k1::new();
 382         let network = Network::Testnet;
 383         let node_1_privkey = SecretKey::from_slice(&[42; 32]).unwrap();
 384         let node_2_privkey = SecretKey::from_slice(&[41; 32]).unwrap();
 385         let node_1_btckey = SecretKey::from_slice(&[40; 32]).unwrap();
 386         let node_2_btckey = SecretKey::from_slice(&[39; 32]).unwrap();
 387         let unsigned_ann = msgs::UnsignedChannelAnnouncement {
 388                 features: ChannelFeatures::empty(),
 389                 chain_hash: genesis_block(network).header.block_hash(),
 390                 short_channel_id: short_chan_id,
 391                 node_id_1: PublicKey::from_secret_key(&secp_ctx, &node_1_privkey),
 392                 node_id_2: PublicKey::from_secret_key(&secp_ctx, &node_2_privkey),
 393                 bitcoin_key_1: PublicKey::from_secret_key(&secp_ctx, &node_1_btckey),
 394                 bitcoin_key_2: PublicKey::from_secret_key(&secp_ctx, &node_2_btckey),
 395                 excess_data: Vec::new(),
 396         };
 397
 398         unsafe {
 399                 msgs::ChannelAnnouncement {
 400                         node_signature_1: Signature::from(FFISignature::new()),
 401                         node_signature_2: Signature::from(FFISignature::new()),
 402                         bitcoin_signature_1: Signature::from(FFISignature::new()),
 403                         bitcoin_signature_2: Signature::from(FFISignature::new()),
 404                         contents: unsigned_ann,
 405                 }
 406         }
 407 }
 408
 409 fn get_dummy_channel_update(short_chan_id: u64) -> msgs::ChannelUpdate {
 410         use bitcoin::secp256k1::ffi::Signature as FFISignature;
 411         let network = Network::Testnet;
 412         msgs::ChannelUpdate {
 413                 signature: Signature::from(unsafe { FFISignature::new() }),
 414                 contents: msgs::UnsignedChannelUpdate {
 415                         chain_hash: genesis_block(network).header.block_hash(),
 416                         short_channel_id: short_chan_id,
 417                         timestamp: 0,
 418                         flags: 0,
 419                         cltv_expiry_delta: 0,
 420                         htlc_minimum_msat: 0,
 421                         htlc_maximum_msat: msgs::MAX_VALUE_MSAT,
 422                         fee_base_msat: 0,
 423                         fee_proportional_millionths: 0,
 424                         excess_data: vec![],
 425                 }
 426         }
 427 }
 428
 429 pub struct TestRoutingMessageHandler {
 430         pub chan_upds_recvd: AtomicUsize,
 431         pub chan_anns_recvd: AtomicUsize,
 432         pub pending_events: Mutex<Vec<events::MessageSendEvent>>,
 433         pub request_full_sync: AtomicBool,
 434 }
 435
 436 impl TestRoutingMessageHandler {
 437         pub fn new() -> Self {
 438                 TestRoutingMessageHandler {
 439                         chan_upds_recvd: AtomicUsize::new(0),
 440                         chan_anns_recvd: AtomicUsize::new(0),
 441                         pending_events: Mutex::new(vec![]),
 442                         request_full_sync: AtomicBool::new(false),
 443                 }
 444         }
 445 }
 446 impl msgs::RoutingMessageHandler for TestRoutingMessageHandler {
 447         fn handle_node_announcement(&self, _msg: &msgs::NodeAnnouncement) -> Result<bool, msgs::LightningError> {
 448                 Err(msgs::LightningError { err: "".to_owned(), action: msgs::ErrorAction::IgnoreError })
 449         }
 450         fn handle_channel_announcement(&self, _msg: &msgs::ChannelAnnouncement) -> Result<bool, msgs::LightningError> {
 451                 self.chan_anns_recvd.fetch_add(1, Ordering::AcqRel);
 452                 Err(msgs::LightningError { err: "".to_owned(), action: msgs::ErrorAction::IgnoreError })
 453         }
 454         fn handle_channel_update(&self, _msg: &msgs::ChannelUpdate) -> Result<bool, msgs::LightningError> {
 455                 self.chan_upds_recvd.fetch_add(1, Ordering::AcqRel);
 456                 Err(msgs::LightningError { err: "".to_owned(), action: msgs::ErrorAction::IgnoreError })
 457         }
 458         fn get_next_channel_announcement(&self, starting_point: u64) -> Option<(msgs::ChannelAnnouncement, Option<msgs::ChannelUpdate>, Option<msgs::ChannelUpdate>)> {
 459                 let chan_upd_1 = get_dummy_channel_update(starting_point);
 460                 let chan_upd_2 = get_dummy_channel_update(starting_point);
 461                 let chan_ann = get_dummy_channel_announcement(starting_point);
 462
 463                 Some((chan_ann, Some(chan_upd_1), Some(chan_upd_2)))
 464         }
 465
 466         fn get_next_node_announcement(&self, _starting_point: Option<&PublicKey>) -> Option<msgs::NodeAnnouncement> {
 467                 None
 468         }
 469
 470         fn peer_connected(&self, their_node_id: &PublicKey, init_msg: &msgs::Init) -> Result<(), ()> {
 471                 if !init_msg.features.supports_gossip_queries() {
 472                         return Ok(());
 473                 }
 474
 475                 #[allow(unused_mut, unused_assignments)]
 476                 let mut gossip_start_time = 0;
 477                 #[cfg(feature = "std")]
 478                 {
 479                         gossip_start_time = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time must be > 1970").as_secs();
 480                         if self.request_full_sync.load(Ordering::Acquire) {
 481                                 gossip_start_time -= 60 * 60 * 24 * 7 * 2; // 2 weeks ago
 482                         } else {
 483                                 gossip_start_time -= 60 * 60; // an hour ago
 484                         }
 485                 }
 486
 487                 let mut pending_events = self.pending_events.lock().unwrap();
 488                 pending_events.push(events::MessageSendEvent::SendGossipTimestampFilter {
 489                         node_id: their_node_id.clone(),
 490                         msg: msgs::GossipTimestampFilter {
 491                                 chain_hash: genesis_block(Network::Testnet).header.block_hash(),
 492                                 first_timestamp: gossip_start_time as u32,
 493                                 timestamp_range: u32::max_value(),
 494                         },
 495                 });
 496                 Ok(())
 497         }
 498
 499         fn handle_reply_channel_range(&self, _their_node_id: &PublicKey, _msg: msgs::ReplyChannelRange) -> Result<(), msgs::LightningError> {
 500                 Ok(())
 501         }
 502
 503         fn handle_reply_short_channel_ids_end(&self, _their_node_id: &PublicKey, _msg: msgs::ReplyShortChannelIdsEnd) -> Result<(), msgs::LightningError> {
 504                 Ok(())
 505         }
 506
 507         fn handle_query_channel_range(&self, _their_node_id: &PublicKey, _msg: msgs::QueryChannelRange) -> Result<(), msgs::LightningError> {
 508                 Ok(())
 509         }
 510
 511         fn handle_query_short_channel_ids(&self, _their_node_id: &PublicKey, _msg: msgs::QueryShortChannelIds) -> Result<(), msgs::LightningError> {
 512                 Ok(())
 513         }
 514
 515         fn provided_node_features(&self) -> NodeFeatures {
 516                 let mut features = NodeFeatures::empty();
 517                 features.set_gossip_queries_optional();
 518                 features
 519         }
 520
 521         fn provided_init_features(&self, _their_init_features: &PublicKey) -> InitFeatures {
 522                 let mut features = InitFeatures::empty();
 523                 features.set_gossip_queries_optional();
 524                 features
 525         }
 526 }
 527
 528 impl events::MessageSendEventsProvider for TestRoutingMessageHandler {
 529         fn get_and_clear_pending_msg_events(&self) -> Vec<events::MessageSendEvent> {
 530                 let mut ret = Vec::new();
 531                 let mut pending_events = self.pending_events.lock().unwrap();
 532                 core::mem::swap(&mut ret, &mut pending_events);
 533                 ret
 534         }
 535 }
 536
 537 pub struct TestLogger {
 538         level: Level,
 539         pub(crate) id: String,
 540         pub lines: Mutex<HashMap<(String, String), usize>>,
 541 }
 542
 543 impl TestLogger {
 544         pub fn new() -> TestLogger {
 545                 Self::with_id("".to_owned())
 546         }
 547         pub fn with_id(id: String) -> TestLogger {
 548                 TestLogger {
 549                         level: Level::Trace,
 550                         id,
 551                         lines: Mutex::new(HashMap::new())
 552                 }
 553         }
 554         pub fn enable(&mut self, level: Level) {
 555                 self.level = level;
 556         }
 557         pub fn assert_log(&self, module: String, line: String, count: usize) {
 558                 let log_entries = self.lines.lock().unwrap();
 559                 assert_eq!(log_entries.get(&(module, line)), Some(&count));
 560         }
 561
 562         /// Search for the number of occurrence of the logged lines which
 563         /// 1. belongs to the specified module and
 564         /// 2. contains `line` in it.
 565         /// And asserts if the number of occurrences is the same with the given `count`
 566         pub fn assert_log_contains(&self, module: String, line: String, count: usize) {
 567                 let log_entries = self.lines.lock().unwrap();
 568                 let l: usize = log_entries.iter().filter(|&(&(ref m, ref l), _c)| {
 569                         m == &module && l.contains(line.as_str())
 570                 }).map(|(_, c) | { c }).sum();
 571                 assert_eq!(l, count)
 572         }
 573
 574         /// Search for the number of occurrences of logged lines which
 575         /// 1. belong to the specified module and
 576         /// 2. match the given regex pattern.
 577         /// Assert that the number of occurrences equals the given `count`
 578         pub fn assert_log_regex(&self, module: String, pattern: regex::Regex, count: usize) {
 579                 let log_entries = self.lines.lock().unwrap();
 580                 let l: usize = log_entries.iter().filter(|&(&(ref m, ref l), _c)| {
 581                         m == &module && pattern.is_match(&l)
 582                 }).map(|(_, c) | { c }).sum();
 583                 assert_eq!(l, count)
 584         }
 585 }
 586
 587 impl Logger for TestLogger {
 588         fn log(&self, record: &Record) {
 589                 *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 590                 if record.level >= self.level {
 591                         #[cfg(feature = "std")]
 592                         println!("{:<5} {} [{} : {}, {}] {}", record.level.to_string(), self.id, record.module_path, record.file, record.line, record.args);
 593                 }
 594         }
 595 }
 596
 597 pub struct TestKeysInterface {
 598         pub backing: keysinterface::PhantomKeysManager,
 599         pub override_random_bytes: Mutex<Option<[u8; 32]>>,
 600         pub disable_revocation_policy_check: bool,
 601         enforcement_states: Mutex<HashMap<[u8;32], Arc<Mutex<EnforcementState>>>>,
 602         expectations: Mutex<Option<VecDeque<OnGetShutdownScriptpubkey>>>,
 603 }
 604
 605 impl keysinterface::KeysInterface for TestKeysInterface {
 606         type Signer = EnforcingSigner;
 607
 608         fn get_node_secret(&self, recipient: Recipient) -> Result<SecretKey, ()> {
 609                 self.backing.get_node_secret(recipient)
 610         }
 611         fn get_node_id(&self, recipient: Recipient) -> Result<PublicKey, ()> {
 612                 self.backing.get_node_id(recipient)
 613         }
 614         fn ecdh(&self, recipient: Recipient, other_key: &PublicKey, tweak: Option<&Scalar>) -> Result<SharedSecret, ()> {
 615                 self.backing.ecdh(recipient, other_key, tweak)
 616         }
 617         fn get_inbound_payment_key_material(&self) -> keysinterface::KeyMaterial {
 618                 self.backing.get_inbound_payment_key_material()
 619         }
 620         fn get_destination_script(&self) -> Script { self.backing.get_destination_script() }
 621
 622         fn get_shutdown_scriptpubkey(&self) -> ShutdownScript {
 623                 match &mut *self.expectations.lock().unwrap() {
 624                         None => self.backing.get_shutdown_scriptpubkey(),
 625                         Some(expectations) => match expectations.pop_front() {
 626                                 None => panic!("Unexpected get_shutdown_scriptpubkey"),
 627                                 Some(expectation) => expectation.returns,
 628                         },
 629                 }
 630         }
 631
 632         fn get_channel_signer(&self, inbound: bool, channel_value_satoshis: u64) -> EnforcingSigner {
 633                 let keys = self.backing.get_channel_signer(inbound, channel_value_satoshis);
 634                 let state = self.make_enforcement_state_cell(keys.commitment_seed);
 635                 EnforcingSigner::new_with_revoked(keys, state, self.disable_revocation_policy_check)
 636         }
 637
 638         fn get_secure_random_bytes(&self) -> [u8; 32] {
 639                 let override_random_bytes = self.override_random_bytes.lock().unwrap();
 640                 if let Some(bytes) = &*override_random_bytes {
 641                         return *bytes;
 642                 }
 643                 self.backing.get_secure_random_bytes()
 644         }
 645
 646         fn read_chan_signer(&self, buffer: &[u8]) -> Result<Self::Signer, msgs::DecodeError> {
 647                 let mut reader = io::Cursor::new(buffer);
 648
 649                 let inner: InMemorySigner = ReadableArgs::read(&mut reader, self.get_node_secret(Recipient::Node).unwrap())?;
 650                 let state = self.make_enforcement_state_cell(inner.commitment_seed);
 651
 652                 Ok(EnforcingSigner::new_with_revoked(
 653                         inner,
 654                         state,
 655                         self.disable_revocation_policy_check
 656                 ))
 657         }
 658
 659         fn sign_invoice(&self, hrp_bytes: &[u8], invoice_data: &[u5], recipient: Recipient) -> Result<RecoverableSignature, ()> {
 660                 self.backing.sign_invoice(hrp_bytes, invoice_data, recipient)
 661         }
 662 }
 663
 664 impl TestKeysInterface {
 665         pub fn new(seed: &[u8; 32], network: Network) -> Self {
 666                 let now = Duration::from_secs(genesis_block(network).header.time as u64);
 667                 Self {
 668                         backing: keysinterface::PhantomKeysManager::new(seed, now.as_secs(), now.subsec_nanos(), seed),
 669                         override_random_bytes: Mutex::new(None),
 670                         disable_revocation_policy_check: false,
 671                         enforcement_states: Mutex::new(HashMap::new()),
 672                         expectations: Mutex::new(None),
 673                 }
 674         }
 675
 676         /// Sets an expectation that [`keysinterface::KeysInterface::get_shutdown_scriptpubkey`] is
 677         /// called.
 678         pub fn expect(&self, expectation: OnGetShutdownScriptpubkey) -> &Self {
 679                 self.expectations.lock().unwrap()
 680                         .get_or_insert_with(|| VecDeque::new())
 681                         .push_back(expectation);
 682                 self
 683         }
 684
 685         pub fn derive_channel_keys(&self, channel_value_satoshis: u64, id: &[u8; 32]) -> EnforcingSigner {
 686                 let keys = self.backing.derive_channel_keys(channel_value_satoshis, id);
 687                 let state = self.make_enforcement_state_cell(keys.commitment_seed);
 688                 EnforcingSigner::new_with_revoked(keys, state, self.disable_revocation_policy_check)
 689         }
 690
 691         fn make_enforcement_state_cell(&self, commitment_seed: [u8; 32]) -> Arc<Mutex<EnforcementState>> {
 692                 let mut states = self.enforcement_states.lock().unwrap();
 693                 if !states.contains_key(&commitment_seed) {
 694                         let state = EnforcementState::new();
 695                         states.insert(commitment_seed, Arc::new(Mutex::new(state)));
 696                 }
 697                 let cell = states.get(&commitment_seed).unwrap();
 698                 Arc::clone(cell)
 699         }
 700 }
 701
 702 pub(crate) fn panicking() -> bool {
 703         #[cfg(feature = "std")]
 704         let panicking = ::std::thread::panicking();
 705         #[cfg(not(feature = "std"))]
 706         let panicking = false;
 707         return panicking;
 708 }
 709
 710 impl Drop for TestKeysInterface {
 711         fn drop(&mut self) {
 712                 if panicking() {
 713                         return;
 714                 }
 715
 716                 if let Some(expectations) = &*self.expectations.lock().unwrap() {
 717                         if !expectations.is_empty() {
 718                                 panic!("Unsatisfied expectations: {:?}", expectations);
 719                         }
 720                 }
 721         }
 722 }
 723
 724 /// An expectation that [`keysinterface::KeysInterface::get_shutdown_scriptpubkey`] was called and
 725 /// returns a [`ShutdownScript`].
 726 pub struct OnGetShutdownScriptpubkey {
 727         /// A shutdown script used to close a channel.
 728         pub returns: ShutdownScript,
 729 }
 730
 731 impl core::fmt::Debug for OnGetShutdownScriptpubkey {
 732         fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
 733                 f.debug_struct("OnGetShutdownScriptpubkey").finish()
 734         }
 735 }
 736
 737 pub struct TestChainSource {
 738         pub genesis_hash: BlockHash,
 739         pub utxo_ret: Mutex<Result<TxOut, chain::AccessError>>,
 740         pub watched_txn: Mutex<HashSet<(Txid, Script)>>,
 741         pub watched_outputs: Mutex<HashSet<(OutPoint, Script)>>,
 742 }
 743
 744 impl TestChainSource {
 745         pub fn new(network: Network) -> Self {
 746                 let script_pubkey = Builder::new().push_opcode(opcodes::OP_TRUE).into_script();
 747                 Self {
 748                         genesis_hash: genesis_block(network).block_hash(),
 749                         utxo_ret: Mutex::new(Ok(TxOut { value: u64::max_value(), script_pubkey })),
 750                         watched_txn: Mutex::new(HashSet::new()),
 751                         watched_outputs: Mutex::new(HashSet::new()),
 752                 }
 753         }
 754 }
 755
 756 impl chain::Access for TestChainSource {
 757         fn get_utxo(&self, genesis_hash: &BlockHash, _short_channel_id: u64) -> Result<TxOut, chain::AccessError> {
 758                 if self.genesis_hash != *genesis_hash {
 759                         return Err(chain::AccessError::UnknownChain);
 760                 }
 761
 762                 self.utxo_ret.lock().unwrap().clone()
 763         }
 764 }
 765
 766 impl chain::Filter for TestChainSource {
 767         fn register_tx(&self, txid: &Txid, script_pubkey: &Script) {
 768                 self.watched_txn.lock().unwrap().insert((*txid, script_pubkey.clone()));
 769         }
 770
 771         fn register_output(&self, output: WatchedOutput) {
 772                 self.watched_outputs.lock().unwrap().insert((output.outpoint, output.script_pubkey));
 773         }
 774 }
 775
 776 impl Drop for TestChainSource {
 777         fn drop(&mut self) {
 778                 if panicking() {
 779                         return;
 780                 }
 781         }
 782 }
 783
 784 /// A scorer useful in testing, when the passage of time isn't a concern.
 785 pub type TestScorer = FixedPenaltyScorer;