_ 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.core.Transaction;
   5 import org.bitcoinj.script.Script;
   6 import org.junit.jupiter.api.Test;
   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.lang.ref.WeakReference;
  13 import java.util.Arrays;
  14 import java.util.HashMap;
  15 import java.util.LinkedList;
  16 import java.util.concurrent.ConcurrentLinkedQueue;
  17
  18 class HumanObjectPeerTestInstance {
  19     class Peer {
  20         final Logger logger;
  21         final FeeEstimator fee_estimator;
  22         final BroadcasterInterface tx_broadcaster;
  23         final KeysInterface keys_interface;
  24         final ChannelManager chan_manager;
  25         final EventsProvider chan_manager_events;
  26         final NetGraphMsgHandler router;
  27         final PeerManager peer_manager;
  28         final HashMap<String, ChannelMonitor> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
  29         byte[] node_id;
  30         final LinkedList<byte[]> broadcast_set = new LinkedList<>();
  31
  32         Peer(byte seed) {
  33             logger = Logger.new_impl((String arg) -> System.out.println(seed + ": " + arg));
  34             fee_estimator = FeeEstimator.new_impl((confirmation_target -> 253));
  35             tx_broadcaster = BroadcasterInterface.new_impl(tx -> {
  36                 broadcast_set.add(tx);
  37             });
  38             this.monitors = new HashMap<>();
  39             Watch chain_monitor = Watch.new_impl(new Watch.WatchInterface() {
  40                 public Result_NoneChannelMonitorUpdateErrZ watch_channel(OutPoint funding_txo, ChannelMonitor monitor) {
  41                     synchronized (monitors) {
  42                         assert monitors.put(Arrays.toString(funding_txo.get_txid()), monitor) == null;
  43                     }
  44                     return new Result_NoneChannelMonitorUpdateErrZ.Result_NoneChannelMonitorUpdateErrZ_OK();
  45                 }
  46
  47                 public Result_NoneChannelMonitorUpdateErrZ update_channel(OutPoint funding_txo, ChannelMonitorUpdate update) {
  48                     synchronized (monitors) {
  49                         String txid = Arrays.toString(funding_txo.get_txid());
  50                         assert monitors.containsKey(txid);
  51                         Result_NoneMonitorUpdateErrorZ update_res = monitors.get(txid).update_monitor(update, tx_broadcaster, logger);
  52                         assert update_res instanceof Result_NoneMonitorUpdateErrorZ.Result_NoneMonitorUpdateErrorZ_OK;
  53                     }
  54                     return new Result_NoneChannelMonitorUpdateErrZ.Result_NoneChannelMonitorUpdateErrZ_OK();
  55                 }
  56
  57                 @Override
  58                 public MonitorEvent[] release_pending_monitor_events() {
  59                     synchronized (monitors) {
  60                         assert monitors.size() <= 1;
  61                         for (ChannelMonitor mon : monitors.values()) {
  62                             return mon.get_and_clear_pending_monitor_events();
  63                         }
  64                     }
  65                     return new MonitorEvent[0];
  66                 }
  67             });
  68
  69             byte[] key_seed = new byte[32];
  70             for (byte i = 0; i < 32; i++) {
  71                 key_seed[i] = (byte) (i ^ seed);
  72             }
  73             KeysManager keys = KeysManager.constructor_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
  74             this.keys_interface = keys.as_KeysInterface();
  75             this.chan_manager = ChannelManager.constructor_new(LDKNetwork.LDKNetwork_Bitcoin, FeeEstimator.new_impl(confirmation_target -> 0), chain_monitor, tx_broadcaster, logger, this.keys_interface, UserConfig.constructor_default(), 1);
  76             this.node_id = chan_manager.get_our_node_id();
  77             this.chan_manager_events = chan_manager.as_EventsProvider();
  78             this.router = NetGraphMsgHandler.constructor_new(null, logger);
  79
  80             byte[] random_data = new byte[32];
  81             for (byte i = 0; i < 32; i++) {
  82                 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
  83             }
  84             this.peer_manager = PeerManager.constructor_new(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
  85             System.gc();
  86         }
  87
  88         TwoTuple<byte[], TxOut[]>[] connect_block(Block b, int height) {
  89             byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
  90             TwoTuple<Long, byte[]>[] txn;
  91             if (b.hasTransactions()) {
  92                 assert b.getTransactions().size() == 1;
  93                 TwoTuple<Long, byte[]> txp = new TwoTuple<>((long) 1, b.getTransactions().get(0).bitcoinSerialize());
  94                 txn = new TwoTuple[]{txp};
  95             } else
  96                 txn = new TwoTuple[0];
  97             chan_manager.block_connected(header, txn, height);
  98             synchronized (monitors) {
  99                 assert monitors.size() == 1;
 100                 for (ChannelMonitor mon : monitors.values()) {
 101                     return mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
 102                 }
 103             }
 104             return null;
 105         }
 106
 107         Route get_route(byte[] dest_node, ChannelDetails[] our_chans) {
 108             try (LockedNetworkGraph netgraph = this.router.read_locked_graph()) {
 109                 NetworkGraph graph = netgraph.graph();
 110                 long res = bindings.get_route(this.node_id, graph._test_only_get_ptr(), dest_node, new long[]{our_chans[0]._test_only_get_ptr()},
 111                         new long[0], 1000, 42, this.logger._test_only_get_ptr());
 112                 assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(res);
 113                 byte[] serialized_route = bindings.Route_write(bindings.LDKCResult_RouteLightningErrorZ_get_ok(res));
 114                 must_free_objs.add(new WeakReference<>(serialized_route));
 115                 Route copy = Route.constructor_read(serialized_route);
 116                 bindings.CResult_RouteLightningErrorZ_free(res);
 117                 return copy;
 118             }
 119         }
 120     }
 121
 122     class LongHolder { long val; }
 123
 124     java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
 125
 126     void do_read_event(ConcurrentLinkedQueue<Thread> list, PeerManager pm, long descriptor, byte[] data) {
 127         Thread thread = new Thread(() -> {
 128             long res = bindings.PeerManager_read_event(pm._test_only_get_ptr(), descriptor, data);
 129             assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
 130             //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
 131             bindings.CResult_boolPeerHandleErrorZ_free(res);
 132         });
 133         thread.start();
 134         list.add(thread);
 135         must_free_objs.add(new WeakReference<>(data));
 136     }
 137
 138     boolean gc_ran = false;
 139
 140     class GcCheck {
 141         @Override
 142         protected void finalize() throws Throwable {
 143             gc_ran = true;
 144             super.finalize();
 145         }
 146     }
 147
 148     void do_test_message_handler(boolean nice_close) throws InterruptedException {
 149         GcCheck obj = new GcCheck();
 150         Peer peer1 = new Peer((byte) 1);
 151         Peer peer2 = new Peer((byte) 2);
 152
 153         ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
 154         LongHolder descriptor1 = new LongHolder();
 155         LongHolder descriptor1ref = descriptor1;
 156         bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
 157             @Override
 158             public long send_data(byte[] data, boolean resume_read) {
 159                 do_read_event(list, peer1.peer_manager, descriptor1ref.val, data);
 160                 return data.length;
 161             }
 162
 163             @Override public void disconnect_socket() { assert false; }
 164             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
 165             @Override public long hash() { return 2; }
 166         };
 167         long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
 168
 169         bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
 170             @Override
 171             public long send_data(byte[] data, boolean resume_read) {
 172                 do_read_event(list, peer2.peer_manager, descriptor2, data);
 173                 return data.length;
 174             }
 175
 176             @Override public void disconnect_socket() { assert false; }
 177             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
 178             @Override public long hash() { return 1; }
 179         };
 180         descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
 181
 182         long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager._test_only_get_ptr(), peer2.node_id, descriptor1.val);
 183         assert (bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
 184
 185         long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager._test_only_get_ptr(), descriptor2);
 186         assert (bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
 187         bindings.CResult_NonePeerHandleErrorZ_free(con_res);
 188         do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_ok(init_vec));
 189         bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
 190
 191         while (!list.isEmpty()) { list.poll().join(); }
 192
 193         Result_NoneAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 10000, 1000, 42, null);
 194         assert cc_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 195
 196         peer1.peer_manager.process_events();
 197         while (!list.isEmpty()) { list.poll().join(); }
 198         peer2.peer_manager.process_events();
 199         while (!list.isEmpty()) { list.poll().join(); }
 200
 201         Event[] events = peer1.chan_manager_events.get_and_clear_pending_events();
 202         assert events.length == 1;
 203         assert events[0] instanceof Event.FundingGenerationReady;
 204         assert ((Event.FundingGenerationReady) events[0]).channel_value_satoshis == 10000;
 205         assert ((Event.FundingGenerationReady) events[0]).user_channel_id == 42;
 206         byte[] funding_spk = ((Event.FundingGenerationReady) events[0]).output_script;
 207         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 208         byte[] chan_id = ((Event.FundingGenerationReady) events[0]).temporary_channel_id;
 209
 210         NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
 211
 212         Transaction funding = new Transaction(bitcoinj_net);
 213         funding.addInput(new TransactionInput(bitcoinj_net, funding, new byte[0]));
 214         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 215         funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
 216         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 217         peer1.chan_manager.funding_transaction_generated(chan_id, OutPoint.constructor_new(funding.getTxId().getReversedBytes(), (short) 0));
 218
 219         peer1.peer_manager.process_events();
 220         while (!list.isEmpty()) { list.poll().join(); }
 221         peer2.peer_manager.process_events();
 222         while (!list.isEmpty()) { list.poll().join(); }
 223
 224         events = peer1.chan_manager_events.get_and_clear_pending_events();
 225         assert events.length == 1;
 226         assert events[0] instanceof Event.FundingBroadcastSafe;
 227         assert ((Event.FundingBroadcastSafe) events[0]).user_channel_id == 42;
 228
 229         Block b = new Block(bitcoinj_net, 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 230         assert peer1.connect_block(b, 1).length == 0;
 231         assert peer2.connect_block(b, 1).length == 0;
 232
 233         for (int height = 2; height < 10; height++) {
 234             b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
 235             assert peer1.connect_block(b, height).length == 0;
 236             assert peer2.connect_block(b, height).length == 0;
 237         }
 238
 239         peer1.peer_manager.process_events();
 240         peer2.peer_manager.process_events();
 241         while (!list.isEmpty()) { list.poll().join(); }
 242
 243         peer1.chan_manager.list_channels();
 244         ChannelDetails[] peer1_chans = peer1.chan_manager.list_channels();
 245         ChannelDetails[] peer2_chans = peer2.chan_manager.list_channels();
 246         assert peer1_chans.length == 1;
 247         assert peer2_chans.length == 1;
 248         assert peer1_chans[0].get_channel_value_satoshis() == 10000;
 249         assert peer1_chans[0].get_is_live();
 250         assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 251         assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 252
 253         byte[] payment_preimage = new byte[32];
 254         for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
 255         byte[] payment_hash = Sha256Hash.hash(payment_preimage);
 256         Route route = peer1.get_route(peer2.node_id, peer1_chans);
 257         Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment(route, payment_hash, new byte[32]);
 258         assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
 259
 260         peer1.peer_manager.process_events();
 261         while (!list.isEmpty()) { list.poll().join(); }
 262         peer2.peer_manager.process_events();
 263         while (!list.isEmpty()) { list.poll().join(); }
 264         peer1.peer_manager.process_events();
 265         while (!list.isEmpty()) { list.poll().join(); }
 266
 267         events = peer2.chan_manager_events.get_and_clear_pending_events();
 268         assert events.length == 1;
 269         assert events[0] instanceof Event.PendingHTLCsForwardable;
 270         peer2.chan_manager.process_pending_htlc_forwards();
 271
 272         events = peer2.chan_manager_events.get_and_clear_pending_events();
 273         assert events.length == 1;
 274         assert events[0] instanceof Event.PaymentReceived;
 275         peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((Event.PaymentReceived) events[0]).amt);
 276
 277         peer2.peer_manager.process_events();
 278         while (!list.isEmpty()) { list.poll().join(); }
 279         peer1.peer_manager.process_events();
 280         while (!list.isEmpty()) { list.poll().join(); }
 281         peer2.peer_manager.process_events();
 282         while (!list.isEmpty()) { list.poll().join(); }
 283
 284         events = peer1.chan_manager_events.get_and_clear_pending_events();
 285         assert events.length == 1;
 286         assert events[0] instanceof Event.PaymentSent;
 287         assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
 288
 289         if (nice_close) {
 290             Result_NoneAPIErrorZ close_res = peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id());
 291             assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 292
 293             peer1.peer_manager.process_events();
 294             while (!list.isEmpty()) { list.poll().join(); }
 295             peer2.peer_manager.process_events();
 296             while (!list.isEmpty()) { list.poll().join(); }
 297             peer1.peer_manager.process_events();
 298             while (!list.isEmpty()) { list.poll().join(); }
 299             peer2.peer_manager.process_events();
 300             while (!list.isEmpty()) { list.poll().join(); }
 301
 302             assert peer1.broadcast_set.size() == 1;
 303             assert peer2.broadcast_set.size() == 1;
 304         } else {
 305             peer1.chan_manager.force_close_all_channels();
 306
 307             peer1.peer_manager.process_events();
 308             while (!list.isEmpty()) { list.poll().join(); }
 309             peer2.peer_manager.process_events();
 310             while (!list.isEmpty()) { list.poll().join(); }
 311             peer1.peer_manager.process_events();
 312             while (!list.isEmpty()) { list.poll().join(); }
 313             peer2.peer_manager.process_events();
 314             while (!list.isEmpty()) { list.poll().join(); }
 315
 316             assert peer1.broadcast_set.size() == 1;
 317             assert peer2.broadcast_set.size() == 0;
 318
 319             Transaction tx = new Transaction(bitcoinj_net, peer1.broadcast_set.getFirst());
 320             b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0,
 321                     Arrays.asList(new Transaction[]{tx}));
 322             TwoTuple<byte[], TxOut[]>[] watch_outputs =  peer2.connect_block(b, 1);
 323             assert watch_outputs.length == 1;
 324             assert Arrays.equals(watch_outputs[0].a, tx.getTxId().getReversedBytes());
 325             assert watch_outputs[0].b.length == 1;
 326         }
 327
 328         bindings.SocketDescriptor_free(descriptor2);
 329         bindings.SocketDescriptor_free(descriptor1.val);
 330     }
 331
 332 }
 333 public class HumanObjectPeerTest {
 334     @Test
 335     public void test_message_handler_force_close() throws InterruptedException {
 336         HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance();
 337         instance.do_test_message_handler(false);
 338         while (!instance.gc_ran) {
 339             System.gc();
 340             System.runFinalization();
 341         }
 342         for (WeakReference<Object> o : instance.must_free_objs)
 343             assert o.get() == null;
 344     }
 345     @Test
 346     public void test_message_handler_nice_close() throws InterruptedException {
 347         HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance();
 348         instance.do_test_message_handler(true);
 349         while (!instance.gc_ran) {
 350             System.gc();
 351             System.runFinalization();
 352         }
 353         for (WeakReference<Object> o : instance.must_free_objs)
 354             assert o.get() == null;
 355     }
 356 }