_ Git - ldk-java/blob - src/test/java/org/ldk/HumanObjectPeerTest.java

   1 package org.ldk;
   2
   3 import org.bitcoinj.core.*;
   4 import org.bitcoinj.script.Script;
   5 import org.junit.jupiter.api.Test;
   6 import org.ldk.batteries.NioPeerHandler;
   7 import org.ldk.enums.LDKNetwork;
   8 import org.ldk.impl.bindings;
   9 import org.ldk.structs.*;
  10 import org.ldk.util.TwoTuple;
  11
  12 import java.io.IOException;
  13 import java.lang.ref.WeakReference;
  14 import java.net.InetSocketAddress;
  15 import java.util.*;
  16
  17 class HumanObjectPeerTestInstance {
  18     private final boolean nice_close;
  19     private final boolean use_km_wrapper;
  20     private final boolean use_manual_watch;
  21     private final boolean reload_peers;
  22     private final boolean break_cross_peer_refs;
  23     private final boolean use_nio_peer_handler;
  24     private final boolean use_filter;
  25
  26     HumanObjectPeerTestInstance(boolean nice_close, boolean use_km_wrapper, boolean use_manual_watch, boolean reload_peers, boolean break_cross_peer_refs, boolean use_nio_peer_handler, boolean use_filter) {
  27         this.nice_close = nice_close;
  28         this.use_km_wrapper = use_km_wrapper;
  29         this.use_manual_watch = use_manual_watch;
  30         this.reload_peers = reload_peers;
  31         this.break_cross_peer_refs = break_cross_peer_refs;
  32         this.use_nio_peer_handler = use_nio_peer_handler;
  33         this.use_filter = use_filter;
  34     }
  35
  36     class Peer {
  37         KeysInterface manual_keysif(KeysInterface underlying_if) {
  38             return KeysInterface.new_impl(new KeysInterface.KeysInterfaceInterface() {
  39                 @Override public byte[] get_node_secret() { return underlying_if.get_node_secret(); }
  40                 @Override public byte[] get_destination_script() { return underlying_if.get_destination_script(); }
  41                 @Override public byte[] get_shutdown_pubkey() { return underlying_if.get_shutdown_pubkey(); }
  42
  43                 @Override
  44                 public Sign get_channel_signer(boolean inbound, long channel_value_satoshis) {
  45                     Sign underlying_ck = underlying_if.get_channel_signer(inbound, channel_value_satoshis);
  46                     // TODO: Expose the underlying signer from a Sign
  47                     /*BaseSign.BaseSignInterface si = new BaseSign.BaseSignInterface() {
  48                         @Override
  49                         public byte[] get_per_commitment_point(long idx) {
  50                             return underlying_ck.get_per_commitment_point(idx);
  51                         }
  52
  53                         @Override
  54                         public byte[] release_commitment_secret(long idx) {
  55                             return underlying_ck.release_commitment_secret(idx);
  56                         }
  57
  58                         @Override
  59                         public byte[] channel_keys_id() {
  60                             return new byte[32];
  61                         }
  62
  63                         @Override
  64                         public Result_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_counterparty_commitment(CommitmentTransaction commitment_tx) {
  65                             return underlying_ck.sign_counterparty_commitment(commitment_tx);
  66                         }
  67
  68                         @Override
  69                         public Result_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_holder_commitment_and_htlcs(HolderCommitmentTransaction holder_commitment_tx) {
  70                             return underlying_ck.sign_holder_commitment_and_htlcs(holder_commitment_tx);
  71                         }
  72
  73                         @Override
  74                         public Result_SignatureNoneZ sign_justice_transaction(byte[] justice_tx, long input, long amount, byte[] per_commitment_key, HTLCOutputInCommitment htlc) {
  75                             return underlying_ck.sign_justice_transaction(justice_tx, input, amount, per_commitment_key, htlc);
  76                         }
  77
  78                         @Override
  79                         public Result_SignatureNoneZ sign_counterparty_htlc_transaction(byte[] htlc_tx, long input, long amount, byte[] per_commitment_point, HTLCOutputInCommitment htlc) {
  80                             return underlying_ck.sign_counterparty_htlc_transaction(htlc_tx, input, amount, per_commitment_point, htlc);
  81                         }
  82
  83                         @Override
  84                         public Result_SignatureNoneZ sign_closing_transaction(byte[] closing_tx) {
  85                             return underlying_ck.sign_closing_transaction(closing_tx);
  86                         }
  87
  88                         @Override
  89                         public Result_SignatureNoneZ sign_channel_announcement(UnsignedChannelAnnouncement msg) {
  90                             return underlying_ck.sign_channel_announcement(msg);
  91                         }
  92
  93                         @Override
  94                         public void ready_channel(ChannelTransactionParameters params) {
  95                             underlying_ck.ready_channel(params);
  96                         }
  97
  98                         @Override
  99                         public byte[] write() {
 100                             return underlying_ck.write();
 101                         }
 102                     };*/
 103                     //Sign resp = Sign.new_impl(si, underlying_ck.get_pubkeys());
 104                     //must_free_objs.add(new WeakReference<>(si));
 105                     //must_free_objs.add(new WeakReference<>(resp));
 106                     must_free_objs.add(new WeakReference<>(underlying_ck));
 107                     //return resp;
 108                     return underlying_ck;
 109                 }
 110
 111                 @Override
 112                 public byte[] get_secure_random_bytes() {
 113                     return underlying_if.get_secure_random_bytes();
 114                 }
 115
 116                 @Override
 117                 public Result_SignDecodeErrorZ read_chan_signer(byte[] reader) {
 118                     return underlying_if.read_chan_signer(reader);
 119                 }
 120             });
 121         }
 122
 123         Watch get_manual_watch() {
 124             Watch.WatchInterface watch_impl = new Watch.WatchInterface() {
 125                 public Result_NoneChannelMonitorUpdateErrZ watch_channel(OutPoint funding_txo, ChannelMonitor monitor) {
 126                     synchronized (monitors) {
 127                         assert monitors.put(Arrays.toString(funding_txo.get_txid()), monitor) == null;
 128                     }
 129                     return Result_NoneChannelMonitorUpdateErrZ.constructor_ok();
 130                 }
 131
 132                 public Result_NoneChannelMonitorUpdateErrZ update_channel(OutPoint funding_txo, ChannelMonitorUpdate update) {
 133                     synchronized (monitors) {
 134                         String txid = Arrays.toString(funding_txo.get_txid());
 135                         assert monitors.containsKey(txid);
 136                         Result_NoneMonitorUpdateErrorZ update_res = monitors.get(txid).update_monitor(update, tx_broadcaster, fee_estimator, logger);
 137                         assert update_res instanceof Result_NoneMonitorUpdateErrorZ.Result_NoneMonitorUpdateErrorZ_OK;
 138                     }
 139                     return Result_NoneChannelMonitorUpdateErrZ.constructor_ok();
 140                 }
 141
 142                 @Override
 143                 public MonitorEvent[] release_pending_monitor_events() {
 144                     synchronized (monitors) {
 145                         assert monitors.size() <= 1;
 146                         for (ChannelMonitor mon : monitors.values()) {
 147                             return mon.get_and_clear_pending_monitor_events();
 148                         }
 149                     }
 150                     return new MonitorEvent[0];
 151                 }
 152             };
 153             Watch watch = Watch.new_impl(watch_impl);
 154             must_free_objs.add(new WeakReference<>(watch_impl));
 155             must_free_objs.add(new WeakReference<>(watch));
 156             return watch;
 157         }
 158
 159         NioPeerHandler nio_peer_handler;
 160         short nio_port;
 161         final byte seed;
 162         final Logger logger;
 163         final FeeEstimator fee_estimator;
 164         final BroadcasterInterface tx_broadcaster;
 165         final KeysManager explicit_keys_manager;
 166         final KeysInterface keys_interface;
 167         final ChainMonitor chain_monitor;
 168         final NetGraphMsgHandler router;
 169         final Watch chain_watch;
 170         final HashSet<String> filter_additions;
 171         final Filter filter;
 172         ChannelManager chan_manager;
 173         EventsProvider chan_manager_events;
 174         PeerManager peer_manager;
 175         final HashMap<String, ChannelMonitor> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
 176         byte[] node_id;
 177         final LinkedList<byte[]> broadcast_set = new LinkedList<>();
 178         GcCheck obj = new GcCheck();
 179
 180         private TwoTuple<OutPoint, byte[]> test_mon_roundtrip(ChannelMonitor mon) {
 181             // Because get_funding_txo() returns an OutPoint in a tuple that is a reference to an OutPoint inside the
 182             // ChannelMonitor, its a good test to ensure that the OutPoint isn't freed (or is cloned) before the
 183             // ChannelMonitor is. This used to be broken.
 184             Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ roundtrip_monitor = UtilMethods.constructor_BlockHashChannelMonitorZ_read(mon.write(), keys_interface);
 185             assert roundtrip_monitor instanceof Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK;
 186             TwoTuple<OutPoint, byte[]> funding_txo = ((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK) roundtrip_monitor).res.b.get_funding_txo();
 187             System.gc(); System.runFinalization(); // Give the GC a chance to run.
 188             return funding_txo;
 189         }
 190
 191         private Peer(Object _dummy, byte seed) {
 192             logger = Logger.new_impl((String arg) -> System.out.println(seed + ": " + arg));
 193             fee_estimator = FeeEstimator.new_impl((confirmation_target -> 253));
 194             tx_broadcaster = BroadcasterInterface.new_impl(tx -> {
 195                 broadcast_set.add(tx);
 196             });
 197             monitors = new HashMap<>();
 198             this.seed = seed;
 199             Persist persister = Persist.new_impl(new Persist.PersistInterface() {
 200                 @Override
 201                 public Result_NoneChannelMonitorUpdateErrZ persist_new_channel(OutPoint id, ChannelMonitor data) {
 202                     synchronized (monitors) {
 203                         String key = Arrays.toString(id.to_channel_id());
 204                         assert monitors.put(key, data) == null;
 205                         TwoTuple<OutPoint, byte[]> res = test_mon_roundtrip(data);
 206                         assert Arrays.equals(res.a.get_txid(), id.get_txid());
 207                         assert res.a.get_index() == id.get_index();
 208                     }
 209                     return Result_NoneChannelMonitorUpdateErrZ.constructor_ok();
 210                 }
 211
 212                 @Override
 213                 public Result_NoneChannelMonitorUpdateErrZ update_persisted_channel(OutPoint id, ChannelMonitorUpdate update, ChannelMonitor data) {
 214                     synchronized (monitors) {
 215                         String key = Arrays.toString(id.to_channel_id());
 216                         assert monitors.put(key, data) != null;
 217                         TwoTuple<OutPoint, byte[]> res = test_mon_roundtrip(data);
 218                         assert Arrays.equals(res.a.get_txid(), id.get_txid());
 219                         assert res.a.get_index() == id.get_index();
 220                     }
 221                     return Result_NoneChannelMonitorUpdateErrZ.constructor_ok();
 222                 }
 223             });
 224
 225             filter_additions = new HashSet<>();
 226             if (use_filter) {
 227                 this.filter = Filter.new_impl(new Filter.FilterInterface() {
 228                     @Override public void register_tx(byte[] txid, byte[] script_pubkey) {
 229                         filter_additions.add(Arrays.toString(txid));
 230                     }
 231                     @Override public Option_C2Tuple_usizeTransactionZZ register_output(WatchedOutput output) {
 232                         filter_additions.add(Arrays.toString(output.get_outpoint().get_txid()) + ":" + output.get_outpoint().get_index());
 233                         return Option_C2Tuple_usizeTransactionZZ.constructor_none();
 234                     }
 235                 });
 236             } else {
 237                 this.filter = null;
 238             }
 239
 240             if (use_manual_watch) {
 241                 chain_watch = get_manual_watch();
 242                 chain_monitor = null;
 243             } else {
 244                 chain_monitor = ChainMonitor.constructor_new(filter, tx_broadcaster, logger, fee_estimator, persister);
 245                 chain_watch = chain_monitor.as_Watch();
 246             }
 247
 248             byte[] key_seed = new byte[32];
 249             for (byte i = 0; i < 32; i++) {
 250                 key_seed[i] = (byte) (i ^ seed);
 251             }
 252             KeysManager keys = KeysManager.constructor_new(key_seed, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000));
 253             if (use_km_wrapper) {
 254                 this.keys_interface = manual_keysif(keys.as_KeysInterface());
 255                 this.explicit_keys_manager = null;
 256             } else {
 257                 this.keys_interface = keys.as_KeysInterface();
 258                 this.explicit_keys_manager = keys;
 259             }
 260             this.router = NetGraphMsgHandler.constructor_new(new byte[32], null, logger);
 261         }
 262         private void bind_nio() {
 263             if (!use_nio_peer_handler) return;
 264             try { this.nio_peer_handler = new NioPeerHandler(peer_manager); } catch (IOException e) { assert false; }
 265             for (short i = 10_000; true; i++) {
 266                 try {
 267                     nio_peer_handler.bind_listener(new InetSocketAddress("127.0.0.1", i));
 268                     nio_port = i;
 269                     break;
 270                 } catch (IOException e) { assert i < 10_500; }
 271             }
 272         }
 273         Peer(byte seed) {
 274             this(null, seed);
 275             this.chan_manager = ChannelManager.constructor_new(FeeEstimator.new_impl(confirmation_target -> 0), chain_watch, tx_broadcaster, logger, this.keys_interface, UserConfig.constructor_default(), LDKNetwork.LDKNetwork_Bitcoin, BestBlock.constructor_new(new byte[32], 0));
 276             this.node_id = chan_manager.get_our_node_id();
 277             this.chan_manager_events = chan_manager.as_EventsProvider();
 278
 279             byte[] random_data = new byte[32];
 280             for (byte i = 0; i < 32; i++) {
 281                 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
 282             }
 283             this.peer_manager = PeerManager.constructor_new(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
 284             bind_nio();
 285             System.gc();
 286         }
 287         Object ptr_to;
 288         Peer(Peer orig) {
 289             this(null, orig.seed);
 290             // TODO: Optionally test ChannelManagerConstructor
 291             ChannelMonitor[] monitors = new ChannelMonitor[1];
 292             synchronized (monitors) {
 293                 assert orig.monitors.size() == 1;
 294                 if (!break_cross_peer_refs) {
 295                     monitors[0] = orig.monitors.values().stream().iterator().next();
 296                 } else {
 297                     byte[] serialized = orig.monitors.values().stream().iterator().next().write();
 298                     Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ res =
 299                             UtilMethods.constructor_BlockHashChannelMonitorZ_read(serialized, this.keys_interface);
 300                     assert res instanceof Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK;
 301                     monitors[0] = ((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK) res).res.b;
 302                 }
 303             }
 304             byte[] serialized = orig.chan_manager.write();
 305             Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ read_res =
 306                     UtilMethods.constructor_BlockHashChannelManagerZ_read(serialized, this.keys_interface, this.fee_estimator, this.chain_watch, this.tx_broadcaster, this.logger, UserConfig.constructor_default(), monitors);
 307             assert read_res instanceof Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_OK;
 308             this.chan_manager = ((Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_OK) read_res).res.b;
 309             this.chain_watch.watch_channel(monitors[0].get_funding_txo().a, monitors[0]);
 310             if (!break_cross_peer_refs && (use_manual_watch || use_km_wrapper)) {
 311                 // When we pass monitors[0] into chain_watch.watch_channel we create a reference from the new Peer to a
 312                 // field in the old peer, preventing freeing of the original Peer until the new Peer is freed. Thus, we
 313                 // shouldn't bother waiting for the original to be freed later on.
 314                 cross_reload_ref_pollution = true;
 315             }
 316             this.node_id = chan_manager.get_our_node_id();
 317             this.chan_manager_events = chan_manager.as_EventsProvider();
 318
 319             if (cross_reload_ref_pollution) {
 320                 // This really, really needs to be handled at the bindings layer, but its rather complicated -
 321                 // ChannelSigners can be cloned and passed around without java being involved, resulting in them being
 322                 // owned by both one or more ChannelMonitors and a ChannelManager, with only one having proper pointers
 323                 // to the ChannelSigner. Ideally, the ChannelSigner would have a global reference to the Java
 324                 // implementation class, but that results in circular references. Instead, we need some ability to,
 325                 // while cloning ChannelSigners, add new references in the calling Java struct (ie ChannelMonitor) to
 326                 // the ChannelSigner.
 327                 this.ptr_to = orig.chan_manager;
 328             }
 329
 330             byte[] random_data = new byte[32];
 331             for (byte i = 0; i < 32; i++) {
 332                 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
 333             }
 334             this.peer_manager = PeerManager.constructor_new(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
 335             bind_nio();
 336         }
 337
 338         TwoTuple<byte[], TwoTuple<Integer, TxOut>[]>[] connect_block(Block b, int height, long expected_monitor_update_len) {
 339             byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
 340             TwoTuple<Long, byte[]>[] txn;
 341             if (b.hasTransactions()) {
 342                 assert b.getTransactions().size() == 1;
 343                 TwoTuple<Long, byte[]> txp = new TwoTuple<>((long) 0, b.getTransactions().get(0).bitcoinSerialize());
 344                 txn = new TwoTuple[]{txp};
 345             } else
 346                 txn = new TwoTuple[0];
 347             if (chain_monitor != null) {
 348                 chan_manager.as_Listen().block_connected(b.bitcoinSerialize(), height);
 349                 chain_monitor.block_connected(header, txn, height);
 350             } else {
 351                 chan_manager.transactions_confirmed(header, height, txn);
 352                 chan_manager.update_best_block(header, height);
 353                 // Connect manually if we aren't using a ChainMonitor and are implementing Watch ourselves
 354                 synchronized (monitors) {
 355                     assert monitors.size() == 1;
 356                     for (ChannelMonitor mon : monitors.values()) {
 357                         TwoTuple<byte[], TwoTuple<Integer, TxOut>[]>[] ret = mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
 358                         assert ret.length == expected_monitor_update_len;
 359                         return ret;
 360                     }
 361                 }
 362             }
 363             return null;
 364         }
 365
 366         Event[] get_monitor_events() {
 367             if (chain_monitor != null) {
 368                 return chain_monitor.as_EventsProvider().get_and_clear_pending_events();
 369             } else {
 370                 synchronized (monitors) {
 371                     assert monitors.size() == 1;
 372                     for (ChannelMonitor mon : monitors.values()) {
 373                         return mon.get_and_clear_pending_events();
 374                     }
 375                     return null;
 376                 }
 377             }
 378         }
 379
 380         Route get_route(byte[] dest_node, ChannelDetails[] our_chans) {
 381             try (LockedNetworkGraph netgraph = this.router.read_locked_graph()) {
 382                 NetworkGraph graph = netgraph.graph();
 383                 long res = bindings.get_route(this.node_id, graph._test_only_get_ptr(), dest_node, 0L, new long[]{our_chans[0]._test_only_get_ptr()},
 384                         new long[0], 1000000, 42, this.logger._test_only_get_ptr());
 385                 assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(res);
 386                 byte[] serialized_route = bindings.Route_write(bindings.LDKCResult_RouteLightningErrorZ_get_ok(res));
 387                 must_free_objs.add(new WeakReference<>(serialized_route));
 388                 Result_RouteDecodeErrorZ copy = Route.constructor_read(serialized_route);
 389                 assert copy instanceof Result_RouteDecodeErrorZ.Result_RouteDecodeErrorZ_OK;
 390                 bindings.CResult_RouteLightningErrorZ_free(res);
 391                 return ((Result_RouteDecodeErrorZ.Result_RouteDecodeErrorZ_OK) copy).res;
 392             }
 393         }
 394     }
 395
 396     static class DescriptorHolder { SocketDescriptor val; }
 397
 398     boolean running = false;
 399     final LinkedList<Runnable> runqueue = new LinkedList();
 400     boolean ran = false;
 401     Thread t = new Thread(() -> {
 402             while (true) {
 403                 try {
 404                     Runnable r;
 405                     synchronized (runqueue) {
 406                         while (runqueue.isEmpty()) {
 407                             runqueue.wait();
 408                         }
 409                         running = true;
 410                         r = runqueue.pollFirst();
 411                     }
 412                     r.run();
 413                     synchronized (runqueue) {
 414                         running = false;
 415                         runqueue.notifyAll();
 416                     }
 417                 } catch (InterruptedException e) {
 418                     return;
 419                 }
 420             }
 421     });
 422     void wait_events_processed(Peer peer1, Peer peer2) {
 423         if (use_nio_peer_handler) {
 424             peer1.nio_peer_handler.check_events();
 425             peer2.nio_peer_handler.check_events();
 426             try { Thread.sleep(400); } catch (InterruptedException e) { assert false; }
 427         } else {
 428             synchronized (runqueue) {
 429                 ran = false;
 430             }
 431             while (true) {
 432                 peer1.peer_manager.process_events();
 433                 peer2.peer_manager.process_events();
 434                 synchronized (runqueue) {
 435                     if (runqueue.isEmpty() && !running) {
 436                         if (ran) {
 437                             ran = false;
 438                             continue;
 439                         } else { break; }
 440                     }
 441                     try { runqueue.wait(); } catch (InterruptedException e) { assert false; }
 442                 }
 443             }
 444         }
 445     }
 446     void do_read_event(PeerManager pm, SocketDescriptor descriptor, byte[] data) {
 447         if (!t.isAlive()) t.start();
 448         synchronized (runqueue) {
 449             ran = true;
 450             runqueue.add(() -> {
 451                 Result_boolPeerHandleErrorZ res = pm.read_event(descriptor, data);
 452                 assert res instanceof Result_boolPeerHandleErrorZ.Result_boolPeerHandleErrorZ_OK;
 453             });
 454             runqueue.notifyAll();
 455         }
 456         must_free_objs.add(new WeakReference<>(data));
 457     }
 458
 459     void connect_peers(final Peer peer1, final Peer peer2) {
 460         if (use_nio_peer_handler) {
 461             try {
 462                 peer1.nio_peer_handler.connect(peer2.chan_manager.get_our_node_id(), new InetSocketAddress("127.0.0.1", peer2.nio_port), 100);
 463             } catch (IOException e) { assert false; }
 464         } else {
 465             DescriptorHolder descriptor1 = new DescriptorHolder();
 466             DescriptorHolder descriptor1ref = descriptor1;
 467             SocketDescriptor descriptor2 = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 468                 @Override
 469                 public long send_data(byte[] data, boolean resume_read) {
 470                     do_read_event(peer1.peer_manager, descriptor1ref.val, data);
 471                     return data.length;
 472                 }
 473
 474                 @Override public void disconnect_socket() { assert false; }
 475                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 2; }
 476                 @Override public long hash() { return 2; }
 477             });
 478
 479             descriptor1.val = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 480                 @Override
 481                 public long send_data(byte[] data, boolean resume_read) {
 482                     do_read_event(peer2.peer_manager, descriptor2, data);
 483                     return data.length;
 484                 }
 485
 486                 @Override public void disconnect_socket() { assert false; }
 487                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 1; }
 488                 @Override public long hash() { return 1; }
 489             });
 490
 491             Result_CVec_u8ZPeerHandleErrorZ conn_res = peer1.peer_manager.new_outbound_connection(peer2.node_id, descriptor1.val);
 492             assert conn_res instanceof Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK;
 493
 494             Result_NonePeerHandleErrorZ inbound_conn_res = peer2.peer_manager.new_inbound_connection(descriptor2);
 495             assert inbound_conn_res instanceof Result_NonePeerHandleErrorZ.Result_NonePeerHandleErrorZ_OK;
 496             do_read_event(peer2.peer_manager, descriptor2, ((Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK) conn_res).res);
 497         }
 498     }
 499
 500     TestState do_test_message_handler() throws InterruptedException {
 501         Peer peer1 = new Peer((byte) 1);
 502         Peer peer2 = new Peer((byte) 2);
 503
 504         connect_peers(peer1, peer2);
 505         wait_events_processed(peer1, peer2);
 506
 507         Result_NoneAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 10000, 1000, 42, null);
 508         assert cc_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 509         wait_events_processed(peer1, peer2);
 510
 511         Event[] events = peer1.chan_manager_events.get_and_clear_pending_events();
 512         assert events.length == 1;
 513         assert events[0] instanceof Event.FundingGenerationReady;
 514         assert ((Event.FundingGenerationReady) events[0]).channel_value_satoshis == 10000;
 515         assert ((Event.FundingGenerationReady) events[0]).user_channel_id == 42;
 516         byte[] funding_spk = ((Event.FundingGenerationReady) events[0]).output_script;
 517         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 518         byte[] chan_id = ((Event.FundingGenerationReady) events[0]).temporary_channel_id;
 519
 520         NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
 521
 522         Transaction funding = new Transaction(bitcoinj_net);
 523         funding.addInput(new TransactionInput(bitcoinj_net, funding, new byte[0]));
 524         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 525         funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
 526         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 527         Result_NoneAPIErrorZ funding_res = peer1.chan_manager.funding_transaction_generated(chan_id, funding.bitcoinSerialize());
 528         assert funding_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 529         wait_events_processed(peer1, peer2);
 530
 531         assert peer1.broadcast_set.size() == 1;
 532         assert Arrays.equals(peer1.broadcast_set.get(0), funding.bitcoinSerialize());
 533         peer1.broadcast_set.clear();
 534
 535         Block b = new Block(bitcoinj_net, 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 536         peer1.connect_block(b, 1, 0);
 537         peer2.connect_block(b, 1, 0);
 538
 539         for (int height = 2; height < 10; height++) {
 540             b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
 541             peer1.connect_block(b, height, 0);
 542             peer2.connect_block(b, height, 0);
 543         }
 544         wait_events_processed(peer1, peer2);
 545
 546         peer1.chan_manager.list_channels();
 547         ChannelDetails[] peer1_chans = peer1.chan_manager.list_usable_channels();
 548         ChannelDetails[] peer2_chans = peer2.chan_manager.list_usable_channels();
 549         assert peer1_chans.length == 1;
 550         assert peer2_chans.length == 1;
 551         assert peer1_chans[0].get_channel_value_satoshis() == 10000;
 552         assert peer1_chans[0].get_is_live();
 553         Option_u64Z short_chan_id = peer1_chans[0].get_short_channel_id();
 554         assert short_chan_id instanceof Option_u64Z.Some;
 555         assert ((Option_u64Z.Some)short_chan_id).some == (1L << 40); // 0th output in the 0th transaction in the 1st block
 556         assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 557         assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 558
 559         byte[] payment_preimage = new byte[32];
 560         for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
 561         byte[] payment_hash = Sha256Hash.hash(payment_preimage);
 562         Route route = peer1.get_route(peer2.node_id, peer1_chans);
 563         Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment(route, payment_hash, new byte[32]);
 564         assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
 565         wait_events_processed(peer1, peer2);
 566
 567         RouteHop[][] hops = new RouteHop[1][1];
 568         byte[] hop_pubkey = new byte[33];
 569         hop_pubkey[0] = 3;
 570         hop_pubkey[1] = 42;
 571         hops[0][0] = RouteHop.constructor_new(hop_pubkey, NodeFeatures.constructor_known(), 42, ChannelFeatures.constructor_known(), 100, 0);
 572         Route r2 = Route.constructor_new(hops);
 573         payment_res = peer1.chan_manager.send_payment(r2, payment_hash, new byte[32]);
 574         assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_Err;
 575
 576         assert peer1.get_monitor_events().length == 0;
 577         assert peer2.get_monitor_events().length == 0;
 578
 579         if (reload_peers) {
 580             if (use_nio_peer_handler) {
 581                 peer1.nio_peer_handler.interrupt();
 582                 peer2.nio_peer_handler.interrupt();
 583             }
 584             WeakReference<Peer> op1 = new WeakReference<Peer>(peer1);
 585             peer1 = new Peer(peer1);
 586             peer2 = new Peer(peer2);
 587             return new TestState(op1, peer1, peer2, payment_preimage, b.getHash());
 588         }
 589         return new TestState(null, peer1, peer2, payment_preimage, b.getHash());
 590     }
 591
 592     boolean cross_reload_ref_pollution = false;
 593     class TestState {
 594         private final WeakReference<Peer> ref_block;
 595         private final Peer peer1;
 596         private final Peer peer2;
 597         private final byte[] payment_preimage;
 598         public Sha256Hash best_blockhash;
 599
 600         public TestState(WeakReference<Peer> ref_block, Peer peer1, Peer peer2, byte[] payment_preimage, Sha256Hash best_blockhash) {
 601             this.ref_block = ref_block;
 602             this.peer1 = peer1;
 603             this.peer2 = peer2;
 604             this.payment_preimage = payment_preimage;
 605             this.best_blockhash = best_blockhash;
 606         }
 607     }
 608     void do_test_message_handler_b(TestState state) {
 609         GcCheck obj = new GcCheck();
 610         if (state.ref_block != null) {
 611             // Ensure the original peers get freed before we move on. Note that we have to be in a different function
 612             // scope to do so as the (at least current OpenJDK) JRE won't release anything created in the same scope.
 613             while (!cross_reload_ref_pollution && state.ref_block.get() != null) {
 614                 System.gc();
 615                 System.runFinalization();
 616             }
 617             connect_peers(state.peer1, state.peer2);
 618         }
 619         wait_events_processed(state.peer1, state.peer2);
 620
 621         Event[] events = state.peer2.chan_manager_events.get_and_clear_pending_events();
 622         assert events.length == 1;
 623         assert events[0] instanceof Event.PendingHTLCsForwardable;
 624         state.peer2.chan_manager.process_pending_htlc_forwards();
 625
 626         events = state.peer2.chan_manager_events.get_and_clear_pending_events();
 627         assert events.length == 1;
 628         assert events[0] instanceof Event.PaymentReceived;
 629         state.peer2.chan_manager.claim_funds(state.payment_preimage, new byte[32], ((Event.PaymentReceived) events[0]).amt);
 630         wait_events_processed(state.peer1, state.peer2);
 631
 632         events = state.peer1.chan_manager_events.get_and_clear_pending_events();
 633         assert events.length == 1;
 634         assert events[0] instanceof Event.PaymentSent;
 635         assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, state.payment_preimage);
 636         wait_events_processed(state.peer1, state.peer2);
 637
 638         ChannelDetails[] peer1_chans = state.peer1.chan_manager.list_channels();
 639
 640         if (nice_close) {
 641             Result_NoneAPIErrorZ close_res = state.peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id());
 642             assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 643             wait_events_processed(state.peer1, state.peer2);
 644
 645             assert state.peer1.broadcast_set.size() == 1;
 646             assert state.peer2.broadcast_set.size() == 1;
 647         } else {
 648             state.peer1.chan_manager.force_close_all_channels();
 649             wait_events_processed(state.peer1, state.peer2);
 650
 651             assert state.peer1.broadcast_set.size() == 1;
 652             assert state.peer2.broadcast_set.size() == 1;
 653
 654             NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
 655             Transaction tx = new Transaction(bitcoinj_net, state.peer1.broadcast_set.getFirst());
 656             Block b = new Block(bitcoinj_net, 2, state.best_blockhash, Sha256Hash.ZERO_HASH, 42, 0, 0,
 657                     Arrays.asList(new Transaction[]{tx}));
 658             TwoTuple<byte[], TwoTuple<Integer, TxOut>[]>[] watch_outputs = state.peer2.connect_block(b, 10, 1);
 659             if (watch_outputs != null) { // We only process watch_outputs manually when we use a manually-build Watch impl
 660                 assert watch_outputs.length == 1;
 661                 assert Arrays.equals(watch_outputs[0].a, tx.getTxId().getReversedBytes());
 662                 assert watch_outputs[0].b.length == 2;
 663                 assert watch_outputs[0].b[0].a == 0;
 664                 assert watch_outputs[0].b[1].a == 1;
 665             }
 666
 667             for (int i = 11; i < 21; i++) {
 668                 b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, new ArrayList<>());
 669                 state.peer2.connect_block(b, i, 0);
 670             }
 671
 672             Event[] broadcastable_event = null;
 673             if (state.peer2.chain_monitor != null) {
 674                 broadcastable_event = state.peer2.chain_monitor.as_EventsProvider().get_and_clear_pending_events();
 675             }
 676             // This used to be buggy and double-free, so go ahead and fetch them!
 677             for (ChannelMonitor mon : state.peer2.monitors.values()) {
 678                 byte[][] txn = mon.get_latest_holder_commitment_txn(state.peer2.logger);
 679                 if (state.peer2.chain_monitor == null) {
 680                     broadcastable_event = mon.get_and_clear_pending_events();
 681                 }
 682             }
 683             assert broadcastable_event.length == 1;
 684             assert broadcastable_event[0] instanceof Event.SpendableOutputs;
 685             if (state.peer2.explicit_keys_manager != null) {
 686                 Result_TransactionNoneZ tx_res = state.peer2.explicit_keys_manager.spend_spendable_outputs(((Event.SpendableOutputs) broadcastable_event[0]).outputs, new TxOut[0], new byte[] {0x00}, 253);
 687                 assert tx_res instanceof Result_TransactionNoneZ.Result_TransactionNoneZ_OK;
 688                 Transaction built_tx = new Transaction(bitcoinj_net, ((Result_TransactionNoneZ.Result_TransactionNoneZ_OK) tx_res).res);
 689                 assert built_tx.getOutputs().size() == 1;
 690                 assert Arrays.equals(built_tx.getOutput(0).getScriptBytes(), new byte[]{0x00});
 691             }
 692         }
 693
 694         if (use_nio_peer_handler) {
 695             state.peer1.peer_manager.disconnect_by_node_id(state.peer2.chan_manager.get_our_node_id(), false);
 696             wait_events_processed(state.peer1, state.peer2);
 697             assert state.peer1.peer_manager.get_peer_node_ids().length == 0;
 698             assert state.peer2.peer_manager.get_peer_node_ids().length == 0;
 699             state.peer1.nio_peer_handler.interrupt();
 700             state.peer2.nio_peer_handler.interrupt();
 701         }
 702
 703         assert state.peer1.get_monitor_events().length == 0;
 704         assert state.peer2.get_monitor_events().length == 0;
 705     }
 706
 707     java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
 708     int gc_count = 0;
 709     int gc_exp_count = 0;
 710     class GcCheck {
 711         GcCheck() { gc_exp_count += 1; }
 712         @Override
 713         protected void finalize() throws Throwable {
 714             gc_count += 1;
 715             super.finalize();
 716         }
 717     }
 718 }
 719 public class HumanObjectPeerTest {
 720     HumanObjectPeerTestInstance do_test_run(boolean nice_close, boolean use_km_wrapper, boolean use_manual_watch, boolean reload_peers, boolean break_cross_peer_refs, boolean nio_peer_handler) throws InterruptedException {
 721         HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance(nice_close, use_km_wrapper, use_manual_watch, reload_peers, break_cross_peer_refs, nio_peer_handler, !nio_peer_handler);
 722         HumanObjectPeerTestInstance.TestState state = instance.do_test_message_handler();
 723         instance.do_test_message_handler_b(state);
 724         return instance;
 725     }
 726     void do_test(boolean nice_close, boolean use_km_wrapper, boolean use_manual_watch, boolean reload_peers, boolean break_cross_peer_refs, boolean nio_peer_handler) throws InterruptedException {
 727         HumanObjectPeerTestInstance instance = do_test_run(nice_close, use_km_wrapper, use_manual_watch, reload_peers, break_cross_peer_refs, nio_peer_handler);
 728         while (instance.gc_count != instance.gc_exp_count) {
 729             System.gc();
 730             System.runFinalization();
 731         }
 732         for (WeakReference<Object> o : instance.must_free_objs)
 733             assert o.get() == null;
 734     }
 735     @Test
 736     public void test_message_handler() throws InterruptedException {
 737         for (int i = 0; i < (1 << 6) - 1; i++) {
 738             boolean nice_close =       (i & (1 << 0)) != 0;
 739             boolean use_km_wrapper =   (i & (1 << 1)) != 0;
 740             boolean use_manual_watch = (i & (1 << 2)) != 0;
 741             boolean reload_peers =     (i & (1 << 3)) != 0;
 742             boolean break_cross_refs = (i & (1 << 4)) != 0;
 743             boolean nio_peer_handler = (i & (1 << 5)) != 0;
 744             if (break_cross_refs && !reload_peers) {
 745                 // There are no cross refs to break without reloading peers.
 746                 continue;
 747             }
 748             System.err.println("Running test with flags " + i);
 749             do_test(nice_close, use_km_wrapper, use_manual_watch, reload_peers, break_cross_refs, nio_peer_handler);
 750         }
 751     }
 752 }