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

   1 package org.ldk;
   2
   3 import com.google.j2objc.annotations.Weak;
   4 import org.bitcoinj.core.*;
   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 bindings.new_empty_slice_vec();
  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 = new KeysManager(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
  79             this.keys_interface = keys.as_KeysInterface();
  80             this.chan_manager = new ChannelManager(LDKNetwork.LDKNetwork_Bitcoin, new FeeEstimator(confirmation_target -> 0), chain_monitor,
  81                     new BroadcasterInterface(tx -> {
  82                     }), new Logger(log_trait), keys.as_KeysInterface(), new UserConfig(), 1);
  83             this.node_id = chan_manager.get_our_node_id();
  84             this.chan_manager_events = chan_manager.as_EventsProvider();
  85             this.router = new NetGraphMsgHandler(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 = new PeerManager(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 = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
 100                         new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
 101             else
 102                 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
 103             bindings.ChannelManager_block_connected(chan_manager._test_only_get_ptr(), header, txn, height);
 104             synchronized (monitors) {
 105                 for (Long mon : monitors.values()) {
 106                     if (t != null)
 107                         txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
 108                                 new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
 109                     else
 110                         txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
 111                     long ret = bindings.ChannelMonitor_block_connected(mon, header, txn, height, tx_broadcaster, fee_estimator, logger);
 112                     bindings.CVec_C2Tuple_TxidCVec_TxOutZZZ_free(ret);
 113                 }
 114             }
 115         }
 116
 117         void free() {
 118             // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
 119             bindings.Logger_free(logger);
 120             bindings.FeeEstimator_free(fee_estimator);
 121             bindings.BroadcasterInterface_free(tx_broadcaster);
 122             synchronized (monitors) {
 123                 for (Long mon : monitors.values()) {
 124                     bindings.ChannelMonitor_free(mon);
 125                 }
 126             }
 127         }
 128
 129         long get_route(byte[] dest_node, long our_chans) {
 130             LockedNetworkGraph netgraph = this.router.read_locked_graph();
 131             //r = new WeakReference(netgraph);
 132             NetworkGraph graph = netgraph.graph();
 133             return bindings.get_route(this.node_id, graph._test_only_get_ptr(), dest_node, our_chans,
 134                     bindings.LDKCVecTempl_RouteHint_new(new long[0]), 1000, 42, this.logger);
 135         }
 136     }
 137
 138     class LongHolder { long val; }
 139
 140     java.util.LinkedList<WeakReference> must_free_objs = new java.util.LinkedList();
 141     void do_read_event(ConcurrentLinkedQueue<Thread> list, PeerManager pm, long descriptor, byte[] data) {
 142         Thread thread = new Thread(() -> {
 143             long res = bindings.PeerManager_read_event(pm._test_only_get_ptr(), descriptor, data);
 144             assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
 145             //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
 146             bindings.CResult_boolPeerHandleErrorZ_free(res);
 147         });
 148         thread.start();
 149         list.add(thread);
 150         must_free_objs.add(new WeakReference(data));
 151     }
 152
 153     boolean gc_ran = false;
 154     class GcCheck {
 155         @Override
 156         protected void finalize() throws Throwable {
 157             gc_ran = true;
 158             super.finalize();
 159         }
 160     }
 161     void do_test_message_handler() throws InterruptedException {
 162         GcCheck obj = new GcCheck();
 163         Peer peer1 = new Peer((byte) 1);
 164         Peer peer2 = new Peer((byte) 2);
 165
 166         ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
 167         LongHolder descriptor1 = new LongHolder();
 168         LongHolder descriptor1ref = descriptor1;
 169         bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
 170             @Override
 171             public long send_data(byte[] data, boolean resume_read) {
 172                 do_read_event(list, peer1.peer_manager, descriptor1ref.val, 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() == 2; }
 178             @Override public long hash() { return 2; }
 179         };
 180         long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
 181
 182         bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
 183             @Override
 184             public long send_data(byte[] data, boolean resume_read) {
 185                 do_read_event(list, peer2.peer_manager, descriptor2, data);
 186                 return data.length;
 187             }
 188
 189             @Override public void disconnect_socket() { assert false; }
 190             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
 191             @Override public long hash() { return 1; }
 192         };
 193         descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
 194
 195         long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager._test_only_get_ptr(), peer2.node_id, descriptor1.val);
 196         assert (bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
 197
 198         long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager._test_only_get_ptr(), descriptor2);
 199         assert (bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
 200         bindings.CResult_NonePeerHandleErrorZ_free(con_res);
 201         do_read_event(list, peer2.peer_manager, descriptor2, bindings.get_u8_slice_bytes(bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_inner(init_vec)));
 202         bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
 203
 204         while (!list.isEmpty()) { list.poll().join(); }
 205
 206         long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager._test_only_get_ptr(), peer2.node_id, 10000, 1000, 42, 0);
 207         assert bindings.LDKCResult_NoneAPIErrorZ_result_ok(cc_res);
 208         bindings.CResult_NoneAPIErrorZ_free(cc_res);
 209
 210         peer1.peer_manager.process_events();
 211         while (!list.isEmpty()) { list.poll().join(); }
 212         peer2.peer_manager.process_events();
 213         while (!list.isEmpty()) { list.poll().join(); }
 214
 215         long events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events._test_only_get_ptr());
 216         bindings.VecOrSliceDef events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 217         assert events_arr_info.datalen == 1;
 218         bindings.LDKEvent event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 219         assert event instanceof bindings.LDKEvent.FundingGenerationReady;
 220         assert ((bindings.LDKEvent.FundingGenerationReady) event).channel_value_satoshis == 10000;
 221         assert ((bindings.LDKEvent.FundingGenerationReady) event).user_channel_id == 42;
 222         byte[] funding_spk = bindings.get_u8_slice_bytes(((bindings.LDKEvent.FundingGenerationReady) event).output_script);
 223         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 224         byte[] chan_id = ((bindings.LDKEvent.FundingGenerationReady) event).temporary_channel_id;
 225         bindings.CVec_EventZ_free(events);
 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, new OutPoint(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 = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events._test_only_get_ptr());
 240         events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 241         assert events_arr_info.datalen == 1;
 242         event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 243         assert event instanceof bindings.LDKEvent.FundingBroadcastSafe;
 244         bindings.CVec_EventZ_free(events);
 245
 246         Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 247         peer1.connect_block(b, funding, 1);
 248         peer2.connect_block(b, funding, 1);
 249
 250         for (int height = 2; height < 10; height++) {
 251             b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 252             peer1.connect_block(b, null, height);
 253             peer2.connect_block(b, null, height);
 254         }
 255
 256         peer1.peer_manager.process_events();
 257         peer2.peer_manager.process_events();
 258         while (!list.isEmpty()) { list.poll().join(); }
 259
 260         long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager._test_only_get_ptr());
 261         long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager._test_only_get_ptr());
 262         assert bindings.vec_slice_len(peer1_chans) == 1;
 263         assert bindings.vec_slice_len(peer2_chans) == 1;
 264         long[] peer_1_chan_info = bindings.LDKCVecTempl_ChannelDetails_arr_info(peer1_chans);
 265         assert peer_1_chan_info.length == 1;
 266         assert bindings.ChannelDetails_get_channel_value_satoshis(peer_1_chan_info[0]) == 10000;
 267         assert bindings.ChannelDetails_get_is_live(peer_1_chan_info[0]);
 268         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer_1_chan_info[0]), funding.getTxId().getReversedBytes());
 269         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(bindings.LDKCVecTempl_ChannelDetails_arr_info(peer2_chans)[0]), funding.getTxId().getReversedBytes());
 270         bindings.CVec_ChannelDetailsZ_free(peer2_chans);
 271
 272         byte[] payment_preimage = new byte[32];
 273         for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
 274         byte[] payment_hash = Sha256Hash.hash(payment_preimage);
 275         long route = peer1.get_route(peer2.node_id, peer1_chans);
 276         System.gc(); // Force the lock to release that we took in get_route - we need something better here!
 277         System.runFinalization();
 278         bindings.CVec_ChannelDetailsZ_free(peer1_chans);
 279         assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(route);
 280         long payment_res = bindings.ChannelManager_send_payment(peer1.chan_manager._test_only_get_ptr(), bindings.LDKCResult_RouteLightningErrorZ_get_inner(route), payment_hash, new byte[32]);
 281         bindings.CResult_RouteLightningErrorZ_free(route);
 282         assert bindings.LDKCResult_NonePaymentSendFailureZ_result_ok(payment_res);
 283         bindings.CResult_NonePaymentSendFailureZ_free(payment_res);
 284
 285         peer1.peer_manager.process_events();
 286         while (!list.isEmpty()) { list.poll().join(); }
 287         peer2.peer_manager.process_events();
 288         while (!list.isEmpty()) { list.poll().join(); }
 289         peer1.peer_manager.process_events();
 290         while (!list.isEmpty()) { list.poll().join(); }
 291
 292         long peer2_events = bindings.EventsProvider_get_and_clear_pending_events(peer2.chan_manager_events._test_only_get_ptr());
 293         bindings.VecOrSliceDef event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 294         assert event_arr_info.datalen == 1;
 295         bindings.LDKEvent forwardable = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 296         assert forwardable instanceof bindings.LDKEvent.PendingHTLCsForwardable;
 297         bindings.CVec_EventZ_free(peer2_events);
 298         bindings.ChannelManager_process_pending_htlc_forwards(peer2.chan_manager._test_only_get_ptr());
 299
 300         peer2_events = bindings.EventsProvider_get_and_clear_pending_events(peer2.chan_manager_events._test_only_get_ptr());
 301         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 302         assert event_arr_info.datalen == 1;
 303         bindings.LDKEvent payment_recvd = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 304         assert payment_recvd instanceof bindings.LDKEvent.PaymentReceived;
 305         peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((bindings.LDKEvent.PaymentReceived) payment_recvd).amt);
 306         bindings.CVec_EventZ_free(peer2_events);
 307
 308         peer2.peer_manager.process_events();
 309         while (!list.isEmpty()) { list.poll().join(); }
 310         peer1.peer_manager.process_events();
 311         while (!list.isEmpty()) { list.poll().join(); }
 312
 313         long peer1_events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events._test_only_get_ptr());
 314         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer1_events);
 315         assert event_arr_info.datalen == 1;
 316         bindings.LDKEvent sent = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 317         assert sent instanceof bindings.LDKEvent.PaymentSent;
 318         assert Arrays.equals(((bindings.LDKEvent.PaymentSent) sent).payment_preimage, payment_preimage);
 319         bindings.CVec_EventZ_free(peer1_events);
 320
 321         peer1.free();
 322         peer2.free();
 323         bindings.SocketDescriptor_free(descriptor2);
 324         bindings.SocketDescriptor_free(descriptor1.val);
 325     }
 326
 327     @Test
 328     public void test_message_handler() throws InterruptedException {
 329         do_test_message_handler();
 330         while (!gc_ran) {
 331             System.gc();
 332             System.runFinalization();
 333         }
 334         for (WeakReference o : must_free_objs)
 335             assert o.get() == null;
 336     }
 337 }