_ 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 KeysManager keys;
  24         final KeysInterface keys_interface;
  25         final ChannelManager chan_manager;
  26         final EventsProvider chan_manager_events;
  27         final NetGraphMsgHandler router;
  28         final PeerManager peer_manager;
  29         final HashMap<String, ChannelMonitor> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
  30         byte[] node_id;
  31         final LinkedList<org.ldk.structs.Transaction> broadcast_set = new LinkedList<>();
  32
  33         Peer(byte seed) {
  34             logger = new Logger((String arg) -> System.out.println(seed + ": " + arg));
  35             fee_estimator = new FeeEstimator((confirmation_target -> 253));
  36             tx_broadcaster = new BroadcasterInterface(tx -> {
  37                 broadcast_set.add(tx);
  38             });
  39             this.monitors = new HashMap<>();
  40             Watch chain_monitor = new Watch(new Watch.WatchInterface() {
  41                 public Result_NoneChannelMonitorUpdateErrZ watch_channel(OutPoint funding_txo, ChannelMonitor monitor) {
  42                     synchronized (monitors) {
  43                         assert monitors.put(Arrays.toString(funding_txo.get_txid()), monitor) == null;
  44                     }
  45                     return new Result_NoneChannelMonitorUpdateErrZ.Result_NoneChannelMonitorUpdateErrZ_OK();
  46                 }
  47
  48                 public Result_NoneChannelMonitorUpdateErrZ update_channel(OutPoint funding_txo, ChannelMonitorUpdate update) {
  49                     synchronized (monitors) {
  50                         String txid = Arrays.toString(funding_txo.get_txid());
  51                         assert monitors.containsKey(txid);
  52                         Result_NoneMonitorUpdateErrorZ update_res = monitors.get(txid).update_monitor(update, tx_broadcaster, logger);
  53                         assert update_res instanceof Result_NoneMonitorUpdateErrorZ.Result_NoneMonitorUpdateErrorZ_OK;
  54                     }
  55                     return new Result_NoneChannelMonitorUpdateErrZ.Result_NoneChannelMonitorUpdateErrZ_OK();
  56                 }
  57
  58                 @Override
  59                 public MonitorEvent[] release_pending_monitor_events() {
  60                     synchronized (monitors) {
  61                         assert monitors.size() <= 1;
  62                         for (ChannelMonitor mon : monitors.values()) {
  63                             return mon.get_and_clear_pending_monitor_events();
  64                         }
  65                     }
  66                     return new MonitorEvent[0];
  67                 }
  68             });
  69
  70             byte[] key_seed = new byte[32];
  71             for (byte i = 0; i < 32; i++) {
  72                 key_seed[i] = (byte) (i ^ seed);
  73             }
  74             this.keys = KeysManager.constructor_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
  75             this.keys_interface = keys.as_KeysInterface();
  76             this.chan_manager = ChannelManager.constructor_new(LDKNetwork.LDKNetwork_Bitcoin, new FeeEstimator(confirmation_target -> 0), chain_monitor, tx_broadcaster, logger, keys.as_KeysInterface(), UserConfig.constructor_default(), 1);
  77             this.node_id = chan_manager.get_our_node_id();
  78             this.chan_manager_events = chan_manager.as_EventsProvider();
  79             this.router = NetGraphMsgHandler.constructor_new(null, logger);
  80
  81             byte[] random_data = new byte[32];
  82             for (byte i = 0; i < 32; i++) {
  83                 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
  84             }
  85             this.peer_manager = PeerManager.constructor_new(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
  86             System.gc();
  87         }
  88
  89         TwoTuple<byte[], TxOut[]>[] connect_block(Block b, int height) {
  90             byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
  91             TwoTuple<Long, org.ldk.structs.Transaction>[] txn;
  92             if (b.hasTransactions()) {
  93                 assert b.getTransactions().size() == 1;
  94                 TwoTuple<Long, org.ldk.structs.Transaction> txp = new TwoTuple<>((long) 1, new org.ldk.structs.Transaction(b.getTransactions().get(0).bitcoinSerialize()));
  95                 txn = new TwoTuple[]{txp};
  96             } else
  97                 txn = new TwoTuple[0];
  98             chan_manager.block_connected(header, txn, height);
  99             synchronized (monitors) {
 100                 assert monitors.size() == 1;
 101                 for (ChannelMonitor mon : monitors.values()) {
 102                     return mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
 103                 }
 104             }
 105             return null;
 106         }
 107
 108         Route get_route(byte[] dest_node, ChannelDetails[] our_chans) {
 109             try (LockedNetworkGraph netgraph = this.router.read_locked_graph()) {
 110                 NetworkGraph graph = netgraph.graph();
 111                 long res = bindings.get_route(this.node_id, graph._test_only_get_ptr(), dest_node, new long[]{our_chans[0]._test_only_get_ptr()},
 112                         new long[0], 1000, 42, this.logger._test_only_get_ptr());
 113                 assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(res);
 114                 byte[] serialized_route = bindings.Route_write(bindings.LDKCResult_RouteLightningErrorZ_get_ok(res));
 115                 must_free_objs.add(new WeakReference<>(serialized_route));
 116                 Route copy = Route.constructor_read(serialized_route);
 117                 bindings.CResult_RouteLightningErrorZ_free(res);
 118                 return copy;
 119             }
 120         }
 121     }
 122
 123     class LongHolder { long val; }
 124
 125     java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
 126
 127     void do_read_event(ConcurrentLinkedQueue<Thread> list, PeerManager pm, long descriptor, byte[] data) {
 128         Thread thread = new Thread(() -> {
 129             long res = bindings.PeerManager_read_event(pm._test_only_get_ptr(), descriptor, data);
 130             assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
 131             //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
 132             bindings.CResult_boolPeerHandleErrorZ_free(res);
 133         });
 134         thread.start();
 135         list.add(thread);
 136         must_free_objs.add(new WeakReference<>(data));
 137     }
 138
 139     boolean gc_ran = false;
 140
 141     class GcCheck {
 142         @Override
 143         protected void finalize() throws Throwable {
 144             gc_ran = true;
 145             super.finalize();
 146         }
 147     }
 148
 149     void do_test_message_handler(boolean nice_close) throws InterruptedException {
 150         GcCheck obj = new GcCheck();
 151         Peer peer1 = new Peer((byte) 1);
 152         Peer peer2 = new Peer((byte) 2);
 153
 154         ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
 155         LongHolder descriptor1 = new LongHolder();
 156         LongHolder descriptor1ref = descriptor1;
 157         bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
 158             @Override
 159             public long send_data(byte[] data, boolean resume_read) {
 160                 do_read_event(list, peer1.peer_manager, descriptor1ref.val, data);
 161                 return data.length;
 162             }
 163
 164             @Override public void disconnect_socket() { assert false; }
 165             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
 166             @Override public long hash() { return 2; }
 167         };
 168         long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
 169
 170         bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
 171             @Override
 172             public long send_data(byte[] data, boolean resume_read) {
 173                 do_read_event(list, peer2.peer_manager, descriptor2, data);
 174                 return data.length;
 175             }
 176
 177             @Override public void disconnect_socket() { assert false; }
 178             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
 179             @Override public long hash() { return 1; }
 180         };
 181         descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
 182
 183         long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager._test_only_get_ptr(), peer2.node_id, descriptor1.val);
 184         assert (bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
 185
 186         long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager._test_only_get_ptr(), descriptor2);
 187         assert (bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
 188         bindings.CResult_NonePeerHandleErrorZ_free(con_res);
 189         do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_ok(init_vec));
 190         bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
 191
 192         while (!list.isEmpty()) { list.poll().join(); }
 193
 194         Result_NoneAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 10000, 1000, 42, null);
 195         assert cc_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 196
 197         peer1.peer_manager.process_events();
 198         while (!list.isEmpty()) { list.poll().join(); }
 199         peer2.peer_manager.process_events();
 200         while (!list.isEmpty()) { list.poll().join(); }
 201
 202         Event[] events = peer1.chan_manager_events.get_and_clear_pending_events();
 203         assert events.length == 1;
 204         assert events[0] instanceof Event.FundingGenerationReady;
 205         assert ((Event.FundingGenerationReady) events[0]).channel_value_satoshis == 10000;
 206         assert ((Event.FundingGenerationReady) events[0]).user_channel_id == 42;
 207         byte[] funding_spk = ((Event.FundingGenerationReady) events[0]).output_script;
 208         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 209         byte[] chan_id = ((Event.FundingGenerationReady) events[0]).temporary_channel_id;
 210
 211         NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
 212
 213         Transaction funding = new Transaction(bitcoinj_net);
 214         funding.addInput(new TransactionInput(bitcoinj_net, funding, new byte[0]));
 215         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 216         funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
 217         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 218         peer1.chan_manager.funding_transaction_generated(chan_id, OutPoint.constructor_new(funding.getTxId().getReversedBytes(), (short) 0));
 219
 220         peer1.peer_manager.process_events();
 221         while (!list.isEmpty()) { list.poll().join(); }
 222         peer2.peer_manager.process_events();
 223         while (!list.isEmpty()) { list.poll().join(); }
 224
 225         events = peer1.chan_manager_events.get_and_clear_pending_events();
 226         assert events.length == 1;
 227         assert events[0] instanceof Event.FundingBroadcastSafe;
 228         assert ((Event.FundingBroadcastSafe) events[0]).user_channel_id == 42;
 229
 230         Block b = new Block(bitcoinj_net, 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 231         assert peer1.connect_block(b, 1).length == 0;
 232         assert peer2.connect_block(b, 1).length == 0;
 233
 234         for (int height = 2; height < 10; height++) {
 235             b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
 236             assert peer1.connect_block(b, height).length == 0;
 237             assert peer2.connect_block(b, height).length == 0;
 238         }
 239
 240         peer1.peer_manager.process_events();
 241         peer2.peer_manager.process_events();
 242         while (!list.isEmpty()) { list.poll().join(); }
 243
 244         peer1.chan_manager.list_channels();
 245         ChannelDetails[] peer1_chans = peer1.chan_manager.list_channels();
 246         ChannelDetails[] peer2_chans = peer2.chan_manager.list_channels();
 247         assert peer1_chans.length == 1;
 248         assert peer2_chans.length == 1;
 249         assert peer1_chans[0].get_channel_value_satoshis() == 10000;
 250         assert peer1_chans[0].get_is_live();
 251         assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 252         assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 253
 254         byte[] payment_preimage = new byte[32];
 255         for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
 256         byte[] payment_hash = Sha256Hash.hash(payment_preimage);
 257         Route route = peer1.get_route(peer2.node_id, peer1_chans);
 258         Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment(route, payment_hash, new byte[32]);
 259         assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
 260
 261         peer1.peer_manager.process_events();
 262         while (!list.isEmpty()) { list.poll().join(); }
 263         peer2.peer_manager.process_events();
 264         while (!list.isEmpty()) { list.poll().join(); }
 265         peer1.peer_manager.process_events();
 266         while (!list.isEmpty()) { list.poll().join(); }
 267
 268         events = peer2.chan_manager_events.get_and_clear_pending_events();
 269         assert events.length == 1;
 270         assert events[0] instanceof Event.PendingHTLCsForwardable;
 271         peer2.chan_manager.process_pending_htlc_forwards();
 272
 273         events = peer2.chan_manager_events.get_and_clear_pending_events();
 274         assert events.length == 1;
 275         assert events[0] instanceof Event.PaymentReceived;
 276         peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((Event.PaymentReceived) events[0]).amt);
 277
 278         peer2.peer_manager.process_events();
 279         while (!list.isEmpty()) { list.poll().join(); }
 280         peer1.peer_manager.process_events();
 281         while (!list.isEmpty()) { list.poll().join(); }
 282         peer2.peer_manager.process_events();
 283         while (!list.isEmpty()) { list.poll().join(); }
 284
 285         events = peer1.chan_manager_events.get_and_clear_pending_events();
 286         assert events.length == 1;
 287         assert events[0] instanceof Event.PaymentSent;
 288         assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
 289
 290         if (nice_close) {
 291             Result_NoneAPIErrorZ close_res = peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id());
 292             assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 293
 294             peer1.peer_manager.process_events();
 295             while (!list.isEmpty()) { list.poll().join(); }
 296             peer2.peer_manager.process_events();
 297             while (!list.isEmpty()) { list.poll().join(); }
 298             peer1.peer_manager.process_events();
 299             while (!list.isEmpty()) { list.poll().join(); }
 300             peer2.peer_manager.process_events();
 301             while (!list.isEmpty()) { list.poll().join(); }
 302
 303             assert peer1.broadcast_set.size() == 1;
 304             assert peer2.broadcast_set.size() == 1;
 305         } else {
 306             peer1.chan_manager.force_close_all_channels();
 307
 308             peer1.peer_manager.process_events();
 309             while (!list.isEmpty()) { list.poll().join(); }
 310             peer2.peer_manager.process_events();
 311             while (!list.isEmpty()) { list.poll().join(); }
 312             peer1.peer_manager.process_events();
 313             while (!list.isEmpty()) { list.poll().join(); }
 314             peer2.peer_manager.process_events();
 315             while (!list.isEmpty()) { list.poll().join(); }
 316
 317             assert peer1.broadcast_set.size() == 1;
 318             assert peer2.broadcast_set.size() == 0;
 319
 320             Transaction tx = new Transaction(bitcoinj_net, peer1.broadcast_set.getFirst().get_contents());
 321             b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0,
 322                     Arrays.asList(new Transaction[]{tx}));
 323             TwoTuple<byte[], TxOut[]>[] watch_outputs =  peer2.connect_block(b, 1);
 324             assert watch_outputs.length == 1;
 325             assert Arrays.equals(watch_outputs[0].a, tx.getTxId().getReversedBytes());
 326             assert watch_outputs[0].b.length == 1;
 327         }
 328
 329         bindings.SocketDescriptor_free(descriptor2);
 330         bindings.SocketDescriptor_free(descriptor1.val);
 331     }
 332
 333 }
 334 public class HumanObjectPeerTest {
 335     @Test
 336     public void test_message_handler_force_close() throws InterruptedException {
 337         HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance();
 338         instance.do_test_message_handler(false);
 339         while (!instance.gc_ran) {
 340             System.gc();
 341             System.runFinalization();
 342         }
 343         for (WeakReference<Object> o : instance.must_free_objs)
 344             assert o.get() == null;
 345     }
 346     @Test
 347     public void test_message_handler_nice_close() throws InterruptedException {
 348         HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance();
 349         instance.do_test_message_handler(true);
 350         while (!instance.gc_ran) {
 351             System.gc();
 352             System.runFinalization();
 353         }
 354         for (WeakReference<Object> o : instance.must_free_objs)
 355             assert o.get() == null;
 356     }
 357 }