_ 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
  11 import java.lang.ref.WeakReference;
  12 import java.util.Arrays;
  13 import java.util.HashMap;
  14 import java.util.concurrent.ConcurrentLinkedQueue;
  15
  16 public class HumanObjectPeerTest {
  17     class Peer {
  18         final long logger;
  19         final long fee_estimator;
  20         final long tx_broadcaster;
  21         final KeysManager keys;
  22         final KeysInterface keys_interface;
  23         final ChannelManager chan_manager;
  24         final EventsProvider chan_manager_events;
  25         final NetGraphMsgHandler router;
  26         final PeerManager peer_manager;
  27         HashMap<String, Long> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
  28         byte[] node_id;
  29
  30         Peer(byte seed) {
  31             bindings.LDKLogger log_trait = (String arg) -> System.out.println(seed + ": " + arg);
  32             logger = bindings.LDKLogger_new(log_trait);
  33             this.fee_estimator = bindings.LDKFeeEstimator_new(confirmation_target -> 0);
  34             this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(tx -> {
  35                 // We should broadcast
  36             });
  37             this.monitors = new HashMap<>();
  38             Watch chain_monitor = new Watch(new bindings.LDKWatch() {
  39                 @Override
  40                 public long watch_channel(long funding_txo, long monitor) {
  41                     synchronized (monitors) {
  42                         assert monitors.put(Arrays.toString(bindings.OutPoint_get_txid(funding_txo)), monitor) == null;
  43                     }
  44                     bindings.OutPoint_free(funding_txo);
  45                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  46                 }
  47
  48                 @Override
  49                 public long update_channel(long funding_txo, long update) {
  50                     synchronized (monitors) {
  51                         String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
  52                         assert monitors.containsKey(txid);
  53                         long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, logger);
  54                         assert bindings.LDKCResult_NoneMonitorUpdateErrorZ_result_ok(update_res);
  55                         bindings.CResult_NoneMonitorUpdateErrorZ_free(update_res);
  56                     }
  57                     bindings.OutPoint_free(funding_txo);
  58                     bindings.ChannelMonitorUpdate_free(update);
  59                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  60                 }
  61
  62                 @Override
  63                 public long[] release_pending_monitor_events() {
  64                     synchronized (monitors) {
  65                         assert monitors.size() <= 1;
  66                         for (Long mon : monitors.values()) {
  67                             return bindings.ChannelMonitor_get_and_clear_pending_monitor_events(mon);
  68                         }
  69                     }
  70                     return new long[0];
  71                 }
  72             });
  73
  74             byte[] key_seed = new byte[32];
  75             for (byte i = 0; i < 32; i++) {
  76                 key_seed[i] = (byte) (i ^ seed);
  77             }
  78             this.keys = KeysManager.constructor_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
  79             this.keys_interface = keys.as_KeysInterface();
  80             this.chan_manager = ChannelManager.constructor_new(LDKNetwork.LDKNetwork_Bitcoin, new FeeEstimator(confirmation_target -> 0), chain_monitor,
  81                     new BroadcasterInterface(tx -> {
  82                     }), new Logger(log_trait), keys.as_KeysInterface(), UserConfig.constructor_default(), 1);
  83             this.node_id = chan_manager.get_our_node_id();
  84             this.chan_manager_events = chan_manager.as_EventsProvider();
  85             this.router = NetGraphMsgHandler.constructor_new(null, new Logger(log_trait));
  86
  87             byte[] random_data = new byte[32];
  88             for (byte i = 0; i < 32; i++) {
  89                 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
  90             }
  91             this.peer_manager = PeerManager.constructor_new(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, new Logger(log_trait));
  92             System.gc();
  93         }
  94
  95         void connect_block(Block b, Transaction t, int height) {
  96             byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
  97             long[] txn;
  98             if (t != null)
  99                 txn = new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))};
 100             else
 101                 txn = new long[0];
 102             bindings.ChannelManager_block_connected(chan_manager._test_only_get_ptr(), header, txn, height);
 103             synchronized (monitors) {
 104                 for (Long mon : monitors.values()) {
 105                     if (t != null)
 106                         txn = new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))};
 107                     else
 108                         txn = new long[0];
 109                     long[] ret = bindings.ChannelMonitor_block_connected(mon, header, txn, height, tx_broadcaster, fee_estimator, logger);
 110                     for (long r : ret) bindings.C2Tuple_TxidCVec_TxOutZZ_free(r);
 111                 }
 112             }
 113         }
 114
 115         void free() {
 116             // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
 117             bindings.Logger_free(logger);
 118             bindings.FeeEstimator_free(fee_estimator);
 119             bindings.BroadcasterInterface_free(tx_broadcaster);
 120             synchronized (monitors) {
 121                 for (Long mon : monitors.values()) {
 122                     bindings.ChannelMonitor_free(mon);
 123                 }
 124             }
 125         }
 126
 127         Route get_route(byte[] dest_node, ChannelDetails[] our_chans) {
 128             try (LockedNetworkGraph netgraph = this.router.read_locked_graph()) {
 129                 NetworkGraph graph = netgraph.graph();
 130                 long res = bindings.get_route(this.node_id, graph._test_only_get_ptr(), dest_node, new long[] {our_chans[0]._test_only_get_ptr()},
 131                         new long[0], 1000, 42, this.logger);
 132                 assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(res);
 133                 byte[] serialized_route = bindings.Route_write(bindings.LDKCResult_RouteLightningErrorZ_get_ok(res));
 134                 must_free_objs.add(new WeakReference<>(serialized_route));
 135                 Route copy = Route.constructor_read(serialized_route);
 136                 bindings.CResult_RouteLightningErrorZ_free(res);
 137                 return copy;
 138             }
 139         }
 140     }
 141
 142     class LongHolder { long val; }
 143
 144     java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
 145     void do_read_event(ConcurrentLinkedQueue<Thread> list, PeerManager pm, long descriptor, byte[] data) {
 146         Thread thread = new Thread(() -> {
 147             long res = bindings.PeerManager_read_event(pm._test_only_get_ptr(), descriptor, data);
 148             assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
 149             //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
 150             bindings.CResult_boolPeerHandleErrorZ_free(res);
 151         });
 152         thread.start();
 153         list.add(thread);
 154         must_free_objs.add(new WeakReference<>(data));
 155     }
 156
 157     boolean gc_ran = false;
 158     class GcCheck {
 159         @Override
 160         protected void finalize() throws Throwable {
 161             gc_ran = true;
 162             super.finalize();
 163         }
 164     }
 165     void do_test_message_handler() throws InterruptedException {
 166         GcCheck obj = new GcCheck();
 167         Peer peer1 = new Peer((byte) 1);
 168         Peer peer2 = new Peer((byte) 2);
 169
 170         ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
 171         LongHolder descriptor1 = new LongHolder();
 172         LongHolder descriptor1ref = descriptor1;
 173         bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
 174             @Override
 175             public long send_data(byte[] data, boolean resume_read) {
 176                 do_read_event(list, peer1.peer_manager, descriptor1ref.val, data);
 177                 return data.length;
 178             }
 179
 180             @Override public void disconnect_socket() { assert false; }
 181             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
 182             @Override public long hash() { return 2; }
 183         };
 184         long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
 185
 186         bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
 187             @Override
 188             public long send_data(byte[] data, boolean resume_read) {
 189                 do_read_event(list, peer2.peer_manager, descriptor2, data);
 190                 return data.length;
 191             }
 192
 193             @Override public void disconnect_socket() { assert false; }
 194             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
 195             @Override public long hash() { return 1; }
 196         };
 197         descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
 198
 199         long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager._test_only_get_ptr(), peer2.node_id, descriptor1.val);
 200         assert (bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
 201
 202         long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager._test_only_get_ptr(), descriptor2);
 203         assert (bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
 204         bindings.CResult_NonePeerHandleErrorZ_free(con_res);
 205         do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_ok(init_vec));
 206         bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
 207
 208         while (!list.isEmpty()) { list.poll().join(); }
 209
 210         Result_NoneAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 10000, 1000, 42, null);
 211         assert cc_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 212
 213         peer1.peer_manager.process_events();
 214         while (!list.isEmpty()) { list.poll().join(); }
 215         peer2.peer_manager.process_events();
 216         while (!list.isEmpty()) { list.poll().join(); }
 217
 218         Event[] events = peer1.chan_manager_events.get_and_clear_pending_events();
 219         assert events.length == 1;
 220         assert events[0] instanceof Event.FundingGenerationReady;
 221         assert ((Event.FundingGenerationReady)events[0]).channel_value_satoshis == 10000;
 222         assert ((Event.FundingGenerationReady)events[0]).user_channel_id == 42;
 223         byte[] funding_spk = ((Event.FundingGenerationReady)events[0]).output_script;
 224         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 225         byte[] chan_id = ((Event.FundingGenerationReady)events[0]).temporary_channel_id;
 226
 227         Transaction funding = new Transaction(NetworkParameters.fromID(NetworkParameters.ID_MAINNET));
 228         funding.addInput(new TransactionInput(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), funding, new byte[0]));
 229         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 230         funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
 231         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 232         peer1.chan_manager.funding_transaction_generated(chan_id, OutPoint.constructor_new(funding.getTxId().getReversedBytes(), (short) 0));
 233
 234         peer1.peer_manager.process_events();
 235         while (!list.isEmpty()) { list.poll().join(); }
 236         peer2.peer_manager.process_events();
 237         while (!list.isEmpty()) { list.poll().join(); }
 238
 239         events = peer1.chan_manager_events.get_and_clear_pending_events();
 240         assert events.length == 1;
 241         assert events[0] instanceof Event.FundingBroadcastSafe;
 242         assert ((Event.FundingBroadcastSafe)events[0]).user_channel_id == 42;
 243
 244         Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 245         peer1.connect_block(b, funding, 1);
 246         peer2.connect_block(b, funding, 1);
 247
 248         for (int height = 2; height < 10; height++) {
 249             b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 250             peer1.connect_block(b, null, height);
 251             peer2.connect_block(b, null, height);
 252         }
 253
 254         peer1.peer_manager.process_events();
 255         peer2.peer_manager.process_events();
 256         while (!list.isEmpty()) { list.poll().join(); }
 257
 258         peer1.chan_manager.list_channels();
 259         ChannelDetails[] peer1_chans = peer1.chan_manager.list_channels();
 260         ChannelDetails[] peer2_chans = peer2.chan_manager.list_channels();
 261         assert peer1_chans.length == 1;
 262         assert peer2_chans.length == 1;
 263         assert peer1_chans[0].get_channel_value_satoshis() == 10000;
 264         assert peer1_chans[0].get_is_live();
 265         assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 266         assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 267
 268         byte[] payment_preimage = new byte[32];
 269         for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
 270         byte[] payment_hash = Sha256Hash.hash(payment_preimage);
 271         Route route = peer1.get_route(peer2.node_id, peer1_chans);
 272         Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment(route, payment_hash, new byte[32]);
 273         assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
 274
 275         peer1.peer_manager.process_events();
 276         while (!list.isEmpty()) { list.poll().join(); }
 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
 282         events = peer2.chan_manager_events.get_and_clear_pending_events();
 283         assert events.length == 1;
 284         assert events[0] instanceof Event.PendingHTLCsForwardable;
 285         peer2.chan_manager.process_pending_htlc_forwards();
 286
 287         events = peer2.chan_manager_events.get_and_clear_pending_events();
 288         assert events.length == 1;
 289         assert events[0] instanceof Event.PaymentReceived;
 290         peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((Event.PaymentReceived) events[0]).amt);
 291
 292         peer2.peer_manager.process_events();
 293         while (!list.isEmpty()) { list.poll().join(); }
 294         peer1.peer_manager.process_events();
 295         while (!list.isEmpty()) { list.poll().join(); }
 296
 297         events = peer1.chan_manager_events.get_and_clear_pending_events();
 298         assert events.length == 1;
 299         assert events[0] instanceof Event.PaymentSent;
 300         assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
 301
 302         peer1.free();
 303         peer2.free();
 304         bindings.SocketDescriptor_free(descriptor2);
 305         bindings.SocketDescriptor_free(descriptor1.val);
 306     }
 307
 308     @Test
 309     public void test_message_handler() throws InterruptedException {
 310         do_test_message_handler();
 311         while (!gc_ran) {
 312             System.gc();
 313             System.runFinalization();
 314         }
 315         for (WeakReference<Object> o : must_free_objs)
 316             assert o.get() == null;
 317     }
 318 }