_ 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 long chan_handler;
  26         final long router;
  27         final long route_handler;
  28         final long message_handler;
  29         final long peer_manager;
  30         HashMap<String, Long> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
  31         byte[] node_id;
  32
  33         Peer(byte seed) {
  34             bindings.LDKLogger log_trait = (String arg) -> System.out.println(seed + ": " + arg);
  35             logger = bindings.LDKLogger_new(log_trait);
  36             this.fee_estimator = bindings.LDKFeeEstimator_new(confirmation_target -> 0);
  37             this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(tx -> {
  38                 // We should broadcast
  39             });
  40             this.monitors = new HashMap<>();
  41             Watch chain_monitor = new Watch(new bindings.LDKWatch() {
  42                 @Override
  43                 public long watch_channel(long funding_txo, long monitor) {
  44                     synchronized (monitors) {
  45                         assert monitors.put(Arrays.toString(bindings.OutPoint_get_txid(funding_txo)), monitor) == null;
  46                     }
  47                     bindings.OutPoint_free(funding_txo);
  48                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  49                 }
  50
  51                 @Override
  52                 public long update_channel(long funding_txo, long update) {
  53                     synchronized (monitors) {
  54                         String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
  55                         assert monitors.containsKey(txid);
  56                         long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, logger);
  57                         assert bindings.LDKCResult_NoneMonitorUpdateErrorZ_result_ok(update_res);
  58                         bindings.CResult_NoneMonitorUpdateErrorZ_free(update_res);
  59                     }
  60                     bindings.OutPoint_free(funding_txo);
  61                     bindings.ChannelMonitorUpdate_free(update);
  62                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  63                 }
  64
  65                 @Override
  66                 public long release_pending_monitor_events() {
  67                     synchronized (monitors) {
  68                         assert monitors.size() <= 1;
  69                         for (Long mon : monitors.values()) {
  70                             return bindings.ChannelMonitor_get_and_clear_pending_monitor_events(mon);
  71                         }
  72                     }
  73                     return bindings.new_empty_slice_vec();
  74                 }
  75             });
  76
  77             byte[] key_seed = new byte[32];
  78             for (byte i = 0; i < 32; i++) {
  79                 key_seed[i] = (byte) (i ^ seed);
  80             }
  81             this.keys = new KeysManager(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
  82             this.keys_interface = keys.as_KeysInterface();
  83             this.chan_manager = new ChannelManager(LDKNetwork.LDKNetwork_Bitcoin, new FeeEstimator(confirmation_target -> 0), chain_monitor,
  84                     new BroadcasterInterface(tx -> {
  85                     }), new Logger(log_trait), keys.as_KeysInterface(), new UserConfig(), 1);
  86             this.node_id = chan_manager.get_our_node_id();
  87             this.chan_manager_events = chan_manager.as_EventsProvider();
  88
  89             this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager._test_only_get_ptr());
  90             this.router = bindings.NetGraphMsgHandler_new(0, logger);
  91             this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
  92             this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
  93
  94             byte[] random_data = new byte[32];
  95             for (byte i = 0; i < 32; i++) {
  96                 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
  97             }
  98             this.peer_manager = bindings.PeerManager_new(message_handler, keys_interface.get_node_secret(), random_data, logger);
  99             System.gc();
 100         }
 101
 102         void connect_block(Block b, Transaction t, int height) {
 103             byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
 104             long txn;
 105             if (t != null)
 106                 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
 107                         new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
 108             else
 109                 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
 110             bindings.ChannelManager_block_connected(chan_manager._test_only_get_ptr(), header, txn, height);
 111             synchronized (monitors) {
 112                 for (Long mon : monitors.values()) {
 113                     if (t != null)
 114                         txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
 115                                 new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
 116                     else
 117                         txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
 118                     long ret = bindings.ChannelMonitor_block_connected(mon, header, txn, height, tx_broadcaster, fee_estimator, logger);
 119                     bindings.CVec_C2Tuple_TxidCVec_TxOutZZZ_free(ret);
 120                 }
 121             }
 122         }
 123
 124         void free() {
 125             // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
 126             bindings.Logger_free(logger);
 127             bindings.FeeEstimator_free(fee_estimator);
 128             bindings.BroadcasterInterface_free(tx_broadcaster);
 129             bindings.ChannelMessageHandler_free(chan_handler);
 130             bindings.NetGraphMsgHandler_free(router);
 131             bindings.RoutingMessageHandler_free(route_handler);
 132             //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
 133             bindings.PeerManager_free(peer_manager);
 134             synchronized (monitors) {
 135                 for (Long mon : monitors.values()) {
 136                     bindings.ChannelMonitor_free(mon);
 137                 }
 138             }
 139         }
 140     }
 141
 142     class LongHolder { long val; }
 143
 144     java.util.LinkedList<WeakReference> must_free_objs = new java.util.LinkedList();
 145     void do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, byte[] data) {
 146         Thread thread = new Thread(() -> {
 147             long res = bindings.PeerManager_read_event(pm, 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, 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, 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.get_u8_slice_bytes(bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_inner(init_vec)));
 206         bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
 207
 208         while (!list.isEmpty()) { list.poll().join(); }
 209
 210         long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager._test_only_get_ptr(), peer2.node_id, 10000, 1000, 42, 0);
 211         assert bindings.LDKCResult_NoneAPIErrorZ_result_ok(cc_res);
 212         bindings.CResult_NoneAPIErrorZ_free(cc_res);
 213
 214         bindings.PeerManager_process_events(peer1.peer_manager);
 215         while (!list.isEmpty()) { list.poll().join(); }
 216         bindings.PeerManager_process_events(peer2.peer_manager);
 217         while (!list.isEmpty()) { list.poll().join(); }
 218
 219         long events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events._test_only_get_ptr());
 220         bindings.VecOrSliceDef events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 221         assert events_arr_info.datalen == 1;
 222         bindings.LDKEvent event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 223         assert event instanceof bindings.LDKEvent.FundingGenerationReady;
 224         assert ((bindings.LDKEvent.FundingGenerationReady) event).channel_value_satoshis == 10000;
 225         assert ((bindings.LDKEvent.FundingGenerationReady) event).user_channel_id == 42;
 226         byte[] funding_spk = bindings.get_u8_slice_bytes(((bindings.LDKEvent.FundingGenerationReady) event).output_script);
 227         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 228         byte[] chan_id = ((bindings.LDKEvent.FundingGenerationReady) event).temporary_channel_id;
 229         bindings.CVec_EventZ_free(events);
 230
 231         Transaction funding = new Transaction(NetworkParameters.fromID(NetworkParameters.ID_MAINNET));
 232         funding.addInput(new TransactionInput(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), funding, new byte[0]));
 233         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 234         funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
 235         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 236         peer1.chan_manager.funding_transaction_generated(chan_id, new OutPoint(funding.getTxId().getReversedBytes(), (short) 0));
 237
 238         bindings.PeerManager_process_events(peer1.peer_manager);
 239         while (!list.isEmpty()) { list.poll().join(); }
 240         bindings.PeerManager_process_events(peer2.peer_manager);
 241         while (!list.isEmpty()) { list.poll().join(); }
 242
 243         events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events._test_only_get_ptr());
 244         events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 245         assert events_arr_info.datalen == 1;
 246         event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 247         assert event instanceof bindings.LDKEvent.FundingBroadcastSafe;
 248         bindings.CVec_EventZ_free(events);
 249
 250         Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 251         peer1.connect_block(b, funding, 1);
 252         peer2.connect_block(b, funding, 1);
 253
 254         for (int height = 2; height < 10; height++) {
 255             b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 256             peer1.connect_block(b, null, height);
 257             peer2.connect_block(b, null, height);
 258         }
 259
 260         bindings.PeerManager_process_events(peer1.peer_manager);
 261         bindings.PeerManager_process_events(peer2.peer_manager);
 262         while (!list.isEmpty()) { list.poll().join(); }
 263
 264         long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager._test_only_get_ptr());
 265         long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager._test_only_get_ptr());
 266         assert bindings.vec_slice_len(peer1_chans) == 1;
 267         assert bindings.vec_slice_len(peer2_chans) == 1;
 268         long[] peer_1_chan_info = bindings.LDKCVecTempl_ChannelDetails_arr_info(peer1_chans);
 269         assert peer_1_chan_info.length == 1;
 270         assert bindings.ChannelDetails_get_channel_value_satoshis(peer_1_chan_info[0]) == 10000;
 271         assert bindings.ChannelDetails_get_is_live(peer_1_chan_info[0]);
 272         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer_1_chan_info[0]), funding.getTxId().getReversedBytes());
 273         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(bindings.LDKCVecTempl_ChannelDetails_arr_info(peer2_chans)[0]), funding.getTxId().getReversedBytes());
 274         bindings.CVec_ChannelDetailsZ_free(peer2_chans);
 275
 276         byte[] payment_preimage = new byte[32];
 277         for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
 278         byte[] payment_hash = Sha256Hash.hash(payment_preimage);
 279         long netgraph = bindings.NetGraphMsgHandler_read_locked_graph(peer1.router);
 280         long route = bindings.get_route(peer1.node_id, bindings.LockedNetworkGraph_graph(netgraph), peer2.node_id, peer1_chans,
 281                 bindings.LDKCVecTempl_RouteHint_new(new long[0]), 1000, 42, peer1.logger);
 282         bindings.CVec_ChannelDetailsZ_free(peer1_chans);
 283         assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(route);
 284         bindings.LockedNetworkGraph_free(netgraph);
 285         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]);
 286         bindings.CResult_RouteLightningErrorZ_free(route);
 287         assert bindings.LDKCResult_NonePaymentSendFailureZ_result_ok(payment_res);
 288         bindings.CResult_NonePaymentSendFailureZ_free(payment_res);
 289
 290         bindings.PeerManager_process_events(peer1.peer_manager);
 291         while (!list.isEmpty()) { list.poll().join(); }
 292         bindings.PeerManager_process_events(peer2.peer_manager);
 293         while (!list.isEmpty()) { list.poll().join(); }
 294         bindings.PeerManager_process_events(peer1.peer_manager);
 295         while (!list.isEmpty()) { list.poll().join(); }
 296
 297         long peer2_events = bindings.EventsProvider_get_and_clear_pending_events(peer2.chan_manager_events._test_only_get_ptr());
 298         bindings.VecOrSliceDef event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 299         assert event_arr_info.datalen == 1;
 300         bindings.LDKEvent forwardable = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 301         assert forwardable instanceof bindings.LDKEvent.PendingHTLCsForwardable;
 302         bindings.CVec_EventZ_free(peer2_events);
 303         bindings.ChannelManager_process_pending_htlc_forwards(peer2.chan_manager._test_only_get_ptr());
 304
 305         peer2_events = bindings.EventsProvider_get_and_clear_pending_events(peer2.chan_manager_events._test_only_get_ptr());
 306         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 307         assert event_arr_info.datalen == 1;
 308         bindings.LDKEvent payment_recvd = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 309         assert payment_recvd instanceof bindings.LDKEvent.PaymentReceived;
 310         peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((bindings.LDKEvent.PaymentReceived) payment_recvd).amt);
 311         bindings.CVec_EventZ_free(peer2_events);
 312
 313         bindings.PeerManager_process_events(peer2.peer_manager);
 314         while (!list.isEmpty()) { list.poll().join(); }
 315         bindings.PeerManager_process_events(peer1.peer_manager);
 316         while (!list.isEmpty()) { list.poll().join(); }
 317
 318         long peer1_events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events._test_only_get_ptr());
 319         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer1_events);
 320         assert event_arr_info.datalen == 1;
 321         bindings.LDKEvent sent = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 322         assert sent instanceof bindings.LDKEvent.PaymentSent;
 323         assert Arrays.equals(((bindings.LDKEvent.PaymentSent) sent).payment_preimage, payment_preimage);
 324         bindings.CVec_EventZ_free(peer1_events);
 325
 326         peer1.free();
 327         peer2.free();
 328         bindings.SocketDescriptor_free(descriptor2);
 329         bindings.SocketDescriptor_free(descriptor1.val);
 330     }
 331
 332     @Test
 333     public void test_message_handler() throws InterruptedException {
 334         do_test_message_handler();
 335         while (!gc_ran) {
 336             System.gc();
 337             System.runFinalization();
 338         }
 339         for (WeakReference o : must_free_objs)
 340             assert o.get() == null;
 341     }
 342 }