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

   1 package org.ldk;
   2
   3 import org.bitcoinj.core.*;
   4 import org.bitcoinj.script.Script;
   5 import org.junit.jupiter.api.Test;
   6 import org.ldk.enums.ChannelMonitorUpdateStatus;
   7 import org.ldk.enums.Network;
   8 import org.ldk.enums.Recipient;
   9 import org.ldk.impl.bindings;
  10 import org.ldk.util.UInt128;
  11
  12 import java.lang.ref.Reference;
  13 import java.util.ArrayList;
  14 import java.util.Arrays;
  15 import java.util.HashMap;
  16 import java.util.LinkedList;
  17 import java.util.concurrent.ConcurrentHashMap;
  18 import java.util.concurrent.ConcurrentLinkedQueue;
  19
  20 public class PeerTest {
  21     class Peer {
  22         final long logger;
  23         final long fee_estimator;
  24         final long tx_broadcaster;
  25         final long chain_monitor;
  26         final long keys;
  27         final long keys_interface;
  28         final long config;
  29         final long chan_manager;
  30         final long chan_manager_events;
  31         final long chan_handler;
  32         final long router;
  33         final long router_wrapper;
  34         final long route_handler;
  35         final long message_handler;
  36         final long ignoring_message_handler;
  37         final long custom_message_handler;
  38         final long onion_message_handler;
  39         final long peer_manager;
  40         HashMap<String, Long> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
  41         byte[] node_id;
  42         bindings.LDKFeeEstimator fee_est;
  43         bindings.LDKBroadcasterInterface broad_trait;
  44         bindings.LDKLogger log_trait;
  45         bindings.LDKWatch watcher;
  46
  47         Peer(byte seed) {
  48             this.log_trait = (long arg) -> {
  49                 System.out.println(seed + ": " + bindings.Record_get_args(arg));
  50                 bindings.Record_free(arg);
  51             };
  52             logger = bindings.LDKLogger_new(this.log_trait);
  53             this.fee_est = confirmation_target -> 0;
  54             this.fee_estimator = bindings.LDKFeeEstimator_new(this.fee_est);
  55             this.broad_trait = tx -> {
  56                 // We should broadcast
  57             };
  58             this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(this.broad_trait);
  59             this.monitors = new HashMap<>();
  60             this.watcher = new bindings.LDKWatch() {
  61                 @Override
  62                 public ChannelMonitorUpdateStatus watch_channel(long funding_txo, long monitor) {
  63                     synchronized (monitors) {
  64                         assert monitors.put(Arrays.toString(bindings.OutPoint_get_txid(funding_txo)), monitor) == null;
  65                     }
  66                     bindings.OutPoint_free(funding_txo);
  67                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
  68                 }
  69
  70                 @Override
  71                 public ChannelMonitorUpdateStatus update_channel(long funding_txo, long update) {
  72                     synchronized (monitors) {
  73                         String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
  74                         assert monitors.containsKey(txid);
  75                         long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, fee_estimator, logger);
  76                         assert bindings.CResult_NoneNoneZ_is_ok(update_res);
  77                         bindings.CResult_NoneNoneZ_free(update_res);
  78                     }
  79                     bindings.OutPoint_free(funding_txo);
  80                     bindings.ChannelMonitorUpdate_free(update);
  81                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
  82                 }
  83
  84                 @Override
  85                 public long[] release_pending_monitor_events() {
  86                     synchronized (monitors) {
  87                         assert monitors.size() <= 1;
  88                         for (Long mon : monitors.values()) {
  89                             long funding_info = bindings.ChannelMonitor_get_funding_txo(mon);
  90                             long funding_txo = bindings.C2Tuple_OutPointScriptZ_get_a(funding_info);
  91                             long[] mon_events = bindings.ChannelMonitor_get_and_clear_pending_monitor_events(mon);
  92                             byte[] counterparty_pk = bindings.ChannelMonitor_get_counterparty_node_id(mon);
  93                             long funding_mon_tuple = bindings.C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_new(funding_txo, mon_events, counterparty_pk);
  94                             bindings.C2Tuple_OutPointScriptZ_free(funding_info);
  95                             return new long[] {funding_mon_tuple};
  96                         }
  97                     }
  98                     return new long[0];
  99                 }
 100             };
 101             this.chain_monitor = bindings.LDKWatch_new(this.watcher);
 102
 103             byte[] key_seed = new byte[32];
 104             for (byte i = 0; i < 32; i++) { key_seed[i] = (byte) (i ^ seed); }
 105             this.keys = bindings.KeysManager_new(key_seed, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
 106             this.keys_interface = bindings.KeysManager_as_KeysInterface(keys);
 107             this.config = bindings.UserConfig_default();
 108             long params = bindings.ChainParameters_new(Network.LDKNetwork_Bitcoin, bindings.BestBlock_new(new byte[32], 0));
 109             this.chan_manager = bindings.ChannelManager_new(fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, params);
 110             this.node_id = bindings.ChannelManager_get_our_node_id(chan_manager);
 111             this.chan_manager_events = bindings.ChannelManager_as_EventsProvider(chan_manager);
 112
 113             this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
 114             this.router = bindings.NetworkGraph_new(new byte[32], logger);
 115             this.router_wrapper = bindings.P2PGossipSync_new(router, bindings.COption_AccessZ_none(), logger);
 116             this.route_handler = bindings.P2PGossipSync_as_RoutingMessageHandler(router_wrapper);
 117             this.ignoring_message_handler = bindings.IgnoringMessageHandler_new();
 118             this.custom_message_handler = bindings.IgnoringMessageHandler_as_CustomMessageHandler(this.ignoring_message_handler);
 119             this.onion_message_handler = bindings.IgnoringMessageHandler_as_OnionMessageHandler(this.ignoring_message_handler);
 120             this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler, this.onion_message_handler);
 121
 122             byte[] random_data = new byte[32];
 123             for (byte i = 0; i < 32; i++) { random_data[i] = (byte) ((i ^ seed) ^ 0xf0); }
 124
 125             long node_id_result = bindings.KeysInterface_get_node_secret(keys_interface, Recipient.LDKRecipient_Node);
 126             assert bindings.CResult_SecretKeyNoneZ_is_ok(node_id_result);
 127             this.peer_manager = bindings.PeerManager_new(message_handler, bindings.CResult_SecretKeyNoneZ_get_ok(node_id_result),
 128                     (int)(System.currentTimeMillis() / 1000), random_data, logger, this.custom_message_handler);
 129             bindings.CResult_SecretKeyNoneZ_free(node_id_result);
 130         }
 131
 132         void connect_block(Block b, Transaction t, int height) {
 133             long listen = bindings.ChannelManager_as_Listen(chan_manager);
 134             bindings.Listen_block_connected(listen, b.bitcoinSerialize(), height);
 135             bindings.Listen_free(listen);
 136             synchronized (monitors) {
 137                 for (Long mon : monitors.values()) {
 138                     long[] txn;
 139                     if (t != null)
 140                         txn = new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, t.bitcoinSerialize())};
 141                     else
 142                         txn = new long[0];
 143                     byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
 144                     long[] ret = bindings.ChannelMonitor_block_connected(mon, header, txn, height, tx_broadcaster, fee_estimator, logger);
 145                     for (long r : ret) {
 146                         bindings.C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_free(r);
 147                     }
 148                 }
 149             }
 150         }
 151
 152         void free() {
 153             // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
 154             bindings.Logger_free(logger);
 155             bindings.FeeEstimator_free(fee_estimator);
 156             bindings.BroadcasterInterface_free(tx_broadcaster);
 157             bindings.Watch_free(chain_monitor);
 158             bindings.KeysManager_free(keys);
 159             bindings.KeysInterface_free(keys_interface);
 160             bindings.UserConfig_free(config);
 161             bindings.ChannelManager_free(chan_manager);
 162             bindings.EventsProvider_free(chan_manager_events);
 163             bindings.ChannelMessageHandler_free(chan_handler);
 164             bindings.NetworkGraph_free(router);
 165             bindings.P2PGossipSync_free(router_wrapper);
 166             bindings.RoutingMessageHandler_free(route_handler);
 167             bindings.CustomMessageHandler_free(custom_message_handler);
 168             bindings.OnionMessageHandler_free(onion_message_handler);
 169             //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
 170             bindings.PeerManager_free(peer_manager);
 171             synchronized (monitors) {
 172                 for (Long mon : monitors.values()) {
 173                     bindings.ChannelMonitor_free(mon);
 174                 }
 175             }
 176         }
 177     }
 178
 179     class LongHolder { long val; }
 180     class PendingWrite {
 181         long pm;
 182         long descriptor;
 183         byte[] array;
 184         PendingWrite(long pm, long descriptor, byte[] array) { this.pm = pm; this.descriptor = descriptor; this.array = array; }
 185         void process() {
 186             long res = bindings.PeerManager_read_event(pm, descriptor, array);
 187             assert bindings.CResult_boolPeerHandleErrorZ_is_ok(res);
 188             assert !bindings.CResult_boolPeerHandleErrorZ_get_ok(res);
 189             bindings.CResult_boolPeerHandleErrorZ_free(res);
 190         }
 191     }
 192     ConcurrentLinkedQueue<PendingWrite> pending_writes = new ConcurrentLinkedQueue<>();
 193
 194     void do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, byte[] arr) {
 195         pending_writes.add(new PendingWrite(pm, descriptor, arr));
 196         Thread thread = new Thread(() -> {
 197             synchronized (pending_writes) {
 198                 while (true) {
 199                     PendingWrite write = pending_writes.poll();
 200                     if (write == null) break;
 201                     write.process();
 202                 }
 203             }
 204         });
 205         thread.start();
 206         list.add(thread);
 207     }
 208
 209     void deliver_peer_messages(ConcurrentLinkedQueue<Thread> list, long peer1, long peer2) throws InterruptedException {
 210         bindings.PeerManager_process_events(peer1);
 211         bindings.PeerManager_process_events(peer2);
 212         while (!list.isEmpty()) {
 213             list.poll().join();
 214             bindings.PeerManager_process_events(peer1);
 215             bindings.PeerManager_process_events(peer2);
 216         }
 217     }
 218
 219     @Test
 220     void test_message_handler() throws InterruptedException {
 221         Peer peer1 = new Peer((byte) 1);
 222         Peer peer2 = new Peer((byte) 2);
 223
 224         ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
 225         LongHolder descriptor1 = new LongHolder();
 226         LongHolder descriptor1ref = descriptor1;
 227         bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
 228             @Override
 229             public long send_data(byte[] data, boolean resume_read) {
 230                 do_read_event(list, peer1.peer_manager, descriptor1ref.val, data);
 231                 return data.length;
 232             }
 233
 234             @Override public void disconnect_socket() { assert false; }
 235             @Override public boolean eq(long other_arg) { boolean ret = bindings.SocketDescriptor_hash(other_arg) == 2; bindings.SocketDescriptor_free(other_arg); return ret; }
 236             @Override public long hash() { return 2; }
 237         };
 238         long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
 239
 240         bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
 241             @Override
 242             public long send_data(byte[] data, boolean resume_read) {
 243                 do_read_event(list, peer2.peer_manager, descriptor2, data);
 244                 return data.length;
 245             }
 246
 247             @Override public void disconnect_socket() { assert false; }
 248             @Override public boolean eq(long other_arg) { boolean ret = bindings.SocketDescriptor_hash(other_arg) == 1; bindings.SocketDescriptor_free(other_arg); return ret; }
 249             @Override public long hash() { return 1; }
 250         };
 251         descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
 252
 253         long no_netaddr = bindings.COption_NetAddressZ_none();
 254         long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager, peer2.node_id, descriptor1.val, no_netaddr);
 255         assert(bindings.CResult_CVec_u8ZPeerHandleErrorZ_is_ok(init_vec));
 256
 257         long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager, descriptor2, no_netaddr);
 258         assert(bindings.CResult_NonePeerHandleErrorZ_is_ok(con_res));
 259         bindings.CResult_NonePeerHandleErrorZ_free(con_res);
 260         do_read_event(list, peer2.peer_manager, descriptor2, bindings.CResult_CVec_u8ZPeerHandleErrorZ_get_ok(init_vec));
 261         bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
 262         bindings.COption_NetAddressZ_free(no_netaddr);
 263
 264         deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
 265
 266         byte[] user_id = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
 267
 268         long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager, peer2.node_id, 10000, 1000, user_id, 0);
 269         assert bindings.CResult_NoneAPIErrorZ_is_ok(cc_res);
 270         bindings.CResult_NoneAPIErrorZ_free(cc_res);
 271
 272         deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
 273
 274         ArrayList<Long> events = new ArrayList();
 275         bindings.LDKEventHandler events_adder = events::add;
 276         long handler = bindings.LDKEventHandler_new(events_adder);
 277
 278         bindings.EventsProvider_process_pending_events(peer1.chan_manager_events, handler);
 279         assert events.size() == 1;
 280         bindings.LDKEvent event = bindings.LDKEvent_ref_from_ptr(events.get(0));
 281         assert event instanceof bindings.LDKEvent.FundingGenerationReady;
 282         assert ((bindings.LDKEvent.FundingGenerationReady)event).channel_value_satoshis == 10000;
 283         assert Arrays.equals(((bindings.LDKEvent.FundingGenerationReady)event).user_channel_id, user_id);
 284         byte[] funding_spk = ((bindings.LDKEvent.FundingGenerationReady)event).output_script;
 285         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 286         byte[] chan_id = ((bindings.LDKEvent.FundingGenerationReady)event).temporary_channel_id;
 287         bindings.Event_free(events.remove(0));
 288
 289         Transaction funding = new Transaction(NetworkParameters.fromID(NetworkParameters.ID_MAINNET));
 290         funding.addInput(new TransactionInput(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), funding, new byte[0]));
 291         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 292         funding.getInput(0).getWitness().setPush(0, new byte[] {0x1});
 293         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 294         bindings.ChannelManager_funding_transaction_generated(peer1.chan_manager, chan_id, peer2.node_id, funding.bitcoinSerialize());
 295
 296         deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
 297
 298         Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 299         peer1.connect_block(b, funding, 1);
 300         peer2.connect_block(b, funding, 1);
 301
 302         for (int height = 2; height < 10; height++) {
 303             b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
 304             peer1.connect_block(b, null, height);
 305             peer2.connect_block(b, null, height);
 306         }
 307
 308         deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
 309
 310         long[] peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager);
 311         long[] peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager);
 312         assert peer1_chans.length == 1;
 313         assert peer2_chans.length == 1;
 314         assert bindings.ChannelDetails_get_channel_value_satoshis(peer1_chans[0]) == 10000;
 315         assert bindings.ChannelDetails_get_is_usable(peer1_chans[0]);
 316         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer1_chans[0]), funding.getTxId().getReversedBytes());
 317         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer2_chans[0]), funding.getTxId().getReversedBytes());
 318         for (long chan : peer2_chans) bindings.ChannelDetails_free(chan);
 319
 320         bindings.EventsProvider_process_pending_events(peer1.chan_manager_events, handler);
 321         assert events.size() == 1;
 322         bindings.LDKEvent ready1 = bindings.LDKEvent_ref_from_ptr(events.get(0));
 323         assert ready1 instanceof bindings.LDKEvent.ChannelReady;
 324         bindings.Event_free(events.remove(0));
 325
 326         bindings.EventsProvider_process_pending_events(peer2.chan_manager_events, handler);
 327         assert events.size() == 1;
 328         bindings.LDKEvent ready2 = bindings.LDKEvent_ref_from_ptr(events.get(0));
 329         assert ready2 instanceof bindings.LDKEvent.ChannelReady;
 330         bindings.Event_free(events.remove(0));
 331
 332         long no_min_val = bindings.COption_u64Z_none();
 333         long inbound_payment = bindings.ChannelManager_create_inbound_payment(peer2.chan_manager, no_min_val, 7200);
 334         assert bindings.CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_is_ok(inbound_payment);
 335         long payment_tuple = bindings.CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_get_ok(inbound_payment);
 336         bindings.COption_u64Z_free(no_min_val);
 337
 338         long scorer = bindings.ProbabilisticScorer_new(bindings.ProbabilisticScoringParameters_default(), peer1.router, peer1.logger);
 339         long scorer_interface = bindings.ProbabilisticScorer_as_Score(scorer);
 340
 341         long no_u64 = bindings.COption_u64Z_none();
 342         long invoice_features = bindings.InvoiceFeatures_empty();
 343         bindings.InvoiceFeatures_set_payment_secret_required(invoice_features);
 344         bindings.InvoiceFeatures_set_variable_length_onion_required(invoice_features);
 345         long payee = bindings.PaymentParameters_new(peer2.node_id, invoice_features, new long[0], no_u64, 6*24*14, (byte)1, (byte)1, new long[0]);
 346         bindings.InvoiceFeatures_free(invoice_features);
 347         bindings.COption_u64Z_free(no_u64);
 348         long route_params = bindings.RouteParameters_new(payee, 1000, 42);
 349         long route = bindings.find_route(peer1.node_id, route_params, peer1.router, peer1_chans, peer1.logger,
 350                 scorer_interface, new byte[32]);
 351         bindings.RouteParameters_free(route_params);
 352         bindings.PaymentParameters_free(payee);
 353         bindings.Score_free(scorer_interface);
 354         bindings.ProbabilisticScorer_free(scorer);
 355
 356         for (long chan : peer1_chans) bindings.ChannelDetails_free(chan);
 357         assert bindings.CResult_RouteLightningErrorZ_is_ok(route);
 358         long payment_res = bindings.ChannelManager_send_payment(peer1.chan_manager, bindings.CResult_RouteLightningErrorZ_get_ok(route),
 359                 bindings.C2Tuple_PaymentHashPaymentSecretZ_get_a(payment_tuple),
 360                 bindings.C2Tuple_PaymentHashPaymentSecretZ_get_b(payment_tuple), new byte[32]);
 361         bindings.CResult_RouteLightningErrorZ_free(route);
 362         bindings.CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_is_ok(inbound_payment);
 363         assert bindings.CResult_NonePaymentSendFailureZ_is_ok(payment_res);
 364         bindings.CResult_NonePaymentSendFailureZ_free(payment_res);
 365
 366         deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
 367
 368         bindings.EventsProvider_process_pending_events(peer2.chan_manager_events, handler);
 369         assert events.size() == 1;
 370         bindings.LDKEvent forwardable = bindings.LDKEvent_ref_from_ptr(events.get(0));
 371         assert forwardable instanceof bindings.LDKEvent.PendingHTLCsForwardable;
 372         bindings.Event_free(events.remove(0));
 373         bindings.ChannelManager_process_pending_htlc_forwards(peer2.chan_manager);
 374
 375         bindings.EventsProvider_process_pending_events(peer2.chan_manager_events, handler);
 376         assert events.size() == 1;
 377         bindings.LDKEvent payment_recvd = bindings.LDKEvent_ref_from_ptr(events.get(0));
 378         assert payment_recvd instanceof bindings.LDKEvent.PaymentClaimable;
 379         bindings.LDKPaymentPurpose purpose = bindings.LDKPaymentPurpose_ref_from_ptr(((bindings.LDKEvent.PaymentClaimable) payment_recvd).purpose);
 380         assert purpose instanceof bindings.LDKPaymentPurpose.InvoicePayment;
 381         bindings.ChannelManager_claim_funds(peer2.chan_manager, ((bindings.LDKPaymentPurpose.InvoicePayment) purpose).payment_preimage);
 382         bindings.Event_free(events.remove(0));
 383
 384         bindings.EventsProvider_process_pending_events(peer2.chan_manager_events, handler);
 385         assert events.size() == 1;
 386         bindings.LDKEvent payment_claimed = bindings.LDKEvent_ref_from_ptr(events.get(0));
 387         assert payment_claimed instanceof bindings.LDKEvent.PaymentClaimed;
 388         bindings.Event_free(events.remove(0));
 389
 390         deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
 391
 392         bindings.EventsProvider_process_pending_events(peer1.chan_manager_events, handler);
 393         assert events.size() == 2;
 394         bindings.LDKEvent sent = bindings.LDKEvent_ref_from_ptr(events.get(0));
 395         assert sent instanceof bindings.LDKEvent.PaymentSent;
 396         bindings.Event_free(events.remove(0));
 397         bindings.LDKEvent sent_path = bindings.LDKEvent_ref_from_ptr(events.get(0));
 398         assert sent_path instanceof bindings.LDKEvent.PaymentPathSuccessful;
 399         bindings.Event_free(events.remove(0));
 400         Reference.reachabilityFence(events_adder);
 401
 402         bindings.EventHandler_free(handler);
 403
 404         peer1.free();
 405         peer2.free();
 406         bindings.SocketDescriptor_free(descriptor2);
 407         bindings.SocketDescriptor_free(descriptor1.val);
 408     }
 409 }