_ 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.impl.bindings;
   7 import org.ldk.enums.*;
   8
   9 import java.util.Arrays;
  10 import java.util.HashMap;
  11 import java.util.concurrent.ConcurrentLinkedQueue;
  12
  13 public class PeerTest {
  14     class Peer {
  15         final long logger;
  16         final long fee_estimator;
  17         final long tx_broadcaster;
  18         final long chain_monitor;
  19         final long keys;
  20         final long keys_interface;
  21         final long config;
  22         final long chan_manager;
  23         final long chan_manager_events;
  24         final long chan_handler;
  25         final long router;
  26         final long route_handler;
  27         final long message_handler;
  28         final long peer_manager;
  29         HashMap<String, Long> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
  30         byte[] node_id;
  31         bindings.LDKFeeEstimator fee_est;
  32         bindings.LDKBroadcasterInterface broad_trait;
  33         bindings.LDKLogger log_trait;
  34         bindings.LDKWatch watcher;
  35
  36         Peer(byte seed) {
  37             this.log_trait = (String arg)-> System.out.println(seed + ": " + arg);
  38             logger = bindings.LDKLogger_new(this.log_trait);
  39             this.fee_est = confirmation_target -> 0;
  40             this.fee_estimator = bindings.LDKFeeEstimator_new(this.fee_est);
  41             this.broad_trait = tx -> {
  42                 // We should broadcast
  43             };
  44             this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(this.broad_trait);
  45             this.monitors = new HashMap<>();
  46             this.watcher = new bindings.LDKWatch() {
  47                 @Override
  48                 public long watch_channel(long funding_txo, long monitor) {
  49                     synchronized (monitors) {
  50                         assert monitors.put(Arrays.toString(bindings.OutPoint_get_txid(funding_txo)), monitor) == null;
  51                     }
  52                     bindings.OutPoint_free(funding_txo);
  53                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  54                 }
  55
  56                 @Override
  57                 public long update_channel(long funding_txo, long update) {
  58                     synchronized (monitors) {
  59                         String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
  60                         assert monitors.containsKey(txid);
  61                         long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, logger);
  62                         assert bindings.LDKCResult_NoneMonitorUpdateErrorZ_result_ok(update_res);
  63                         bindings.CResult_NoneMonitorUpdateErrorZ_free(update_res);
  64                     }
  65                     bindings.OutPoint_free(funding_txo);
  66                     bindings.ChannelMonitorUpdate_free(update);
  67                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  68                 }
  69
  70                 @Override
  71                 public long release_pending_monitor_events() {
  72                     synchronized (monitors) {
  73                         assert monitors.size() <= 1;
  74                         for (Long mon : monitors.values()) {
  75                             return bindings.ChannelMonitor_get_and_clear_pending_monitor_events(mon);
  76                         }
  77                     }
  78                     return bindings.new_empty_slice_vec();
  79                 }
  80             };
  81             this.chain_monitor = bindings.LDKWatch_new(this.watcher);
  82
  83             byte[] key_seed = new byte[32];
  84             for (byte i = 0; i < 32; i++) { key_seed[i] = (byte) (i ^ seed); }
  85             this.keys = bindings.KeysManager_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
  86             this.keys_interface = bindings.KeysManager_as_KeysInterface(keys);
  87             this.config = bindings.UserConfig_default();
  88             this.chan_manager = bindings.ChannelManager_new(LDKNetwork.LDKNetwork_Bitcoin, fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, 1);
  89             this.node_id = bindings.ChannelManager_get_our_node_id(chan_manager);
  90             this.chan_manager_events = bindings.ChannelManager_as_EventsProvider(chan_manager);
  91
  92             this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
  93             this.router = bindings.NetGraphMsgHandler_new(0, logger);
  94             this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
  95             this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
  96
  97             byte[] random_data = new byte[32];
  98             for (byte i = 0; i < 32; i++) { random_data[i] = (byte) ((i ^ seed) ^ 0xf0); }
  99             this.peer_manager = bindings.PeerManager_new(message_handler, bindings.KeysInterface_get_node_secret(keys_interface), random_data, logger);
 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, 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.Watch_free(chain_monitor);
 130             bindings.KeysManager_free(keys);
 131             bindings.KeysInterface_free(keys_interface);
 132             bindings.UserConfig_free(config);
 133             bindings.ChannelManager_free(chan_manager);
 134             bindings.EventsProvider_free(chan_manager_events);
 135             bindings.ChannelMessageHandler_free(chan_handler);
 136             bindings.NetGraphMsgHandler_free(router);
 137             bindings.RoutingMessageHandler_free(route_handler);
 138             //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
 139             bindings.PeerManager_free(peer_manager);
 140             synchronized (monitors) {
 141                 for (Long mon : monitors.values()) {
 142                     bindings.ChannelMonitor_free(mon);
 143                 }
 144             }
 145         }
 146     }
 147
 148     class LongHolder { long val; }
 149
 150     void do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, byte[] arr) {
 151         Thread thread = new Thread(() -> {
 152             long res = bindings.PeerManager_read_event(pm, descriptor, arr);
 153             assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
 154             //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
 155             bindings.CResult_boolPeerHandleErrorZ_free(res);
 156         });
 157         thread.start();
 158         list.add(thread);
 159     }
 160
 161     @Test
 162     void test_message_handler() throws InterruptedException {
 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, 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, 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.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_ok(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, 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         bindings.PeerManager_process_events(peer1.peer_manager);
 211         while (!list.isEmpty()) { list.poll().join(); }
 212         bindings.PeerManager_process_events(peer2.peer_manager);
 213         while (!list.isEmpty()) { list.poll().join(); }
 214
 215         long events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events);
 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.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         long funding_txo = bindings.OutPoint_new(funding.getTxId().getReversedBytes(), (short) 0);
 233         bindings.ChannelManager_funding_transaction_generated(peer1.chan_manager, chan_id, funding_txo);
 234         bindings.OutPoint_free(funding_txo);
 235
 236         bindings.PeerManager_process_events(peer1.peer_manager);
 237         while (!list.isEmpty()) { list.poll().join(); }
 238         bindings.PeerManager_process_events(peer2.peer_manager);
 239         while (!list.isEmpty()) { list.poll().join(); }
 240
 241         events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events);
 242         events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 243         assert events_arr_info.datalen == 1;
 244         event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 245         assert event instanceof bindings.LDKEvent.FundingBroadcastSafe;
 246         bindings.CVec_EventZ_free(events);
 247
 248         Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 249         peer1.connect_block(b, funding, 1);
 250         peer2.connect_block(b, funding, 1);
 251
 252         for (int height = 2; height < 10; height++) {
 253             b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 254             peer1.connect_block(b, null, height);
 255             peer2.connect_block(b, null, height);
 256         }
 257
 258         bindings.PeerManager_process_events(peer1.peer_manager);
 259         bindings.PeerManager_process_events(peer2.peer_manager);
 260         while (!list.isEmpty()) { list.poll().join(); }
 261
 262         long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager);
 263         long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager);
 264         assert bindings.vec_slice_len(peer1_chans) == 1;
 265         assert bindings.vec_slice_len(peer2_chans) == 1;
 266         long[] peer_1_chan_info = bindings.LDKCVecTempl_ChannelDetails_arr_info(peer1_chans);
 267         assert peer_1_chan_info.length == 1;
 268         assert bindings.ChannelDetails_get_channel_value_satoshis(peer_1_chan_info[0]) == 10000;
 269         assert bindings.ChannelDetails_get_is_live(peer_1_chan_info[0]);
 270         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer_1_chan_info[0]), funding.getTxId().getReversedBytes());
 271         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(bindings.LDKCVecTempl_ChannelDetails_arr_info(peer2_chans)[0]), funding.getTxId().getReversedBytes());
 272         bindings.CVec_ChannelDetailsZ_free(peer2_chans);
 273
 274         byte[] payment_preimage = new byte[32];
 275         for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
 276         byte[] payment_hash = Sha256Hash.hash(payment_preimage);
 277         long netgraph = bindings.NetGraphMsgHandler_read_locked_graph(peer1.router);
 278         long route = bindings.get_route(peer1.node_id, bindings.LockedNetworkGraph_graph(netgraph), peer2.node_id, peer1_chans,
 279                 bindings.LDKCVecTempl_RouteHint_new(new long[0]), 1000, 42, peer1.logger);
 280         bindings.CVec_ChannelDetailsZ_free(peer1_chans);
 281         assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(route);
 282         bindings.LockedNetworkGraph_free(netgraph);
 283         long payment_res = bindings.ChannelManager_send_payment(peer1.chan_manager, bindings.LDKCResult_RouteLightningErrorZ_get_ok(route), payment_hash, new byte[32]);
 284         bindings.CResult_RouteLightningErrorZ_free(route);
 285         assert bindings.LDKCResult_NonePaymentSendFailureZ_result_ok(payment_res);
 286         bindings.CResult_NonePaymentSendFailureZ_free(payment_res);
 287
 288         bindings.PeerManager_process_events(peer1.peer_manager);
 289         while (!list.isEmpty()) { list.poll().join(); }
 290         bindings.PeerManager_process_events(peer2.peer_manager);
 291         while (!list.isEmpty()) { list.poll().join(); }
 292         bindings.PeerManager_process_events(peer1.peer_manager);
 293         while (!list.isEmpty()) { list.poll().join(); }
 294
 295         long peer2_events = bindings.EventsProvider_get_and_clear_pending_events(peer2.chan_manager_events);
 296         bindings.VecOrSliceDef event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 297         assert event_arr_info.datalen == 1;
 298         bindings.LDKEvent forwardable = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 299         assert forwardable instanceof bindings.LDKEvent.PendingHTLCsForwardable;
 300         bindings.CVec_EventZ_free(peer2_events);
 301         bindings.ChannelManager_process_pending_htlc_forwards(peer2.chan_manager);
 302
 303         peer2_events = bindings.EventsProvider_get_and_clear_pending_events(peer2.chan_manager_events);
 304         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 305         assert event_arr_info.datalen == 1;
 306         bindings.LDKEvent payment_recvd = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 307         assert payment_recvd instanceof bindings.LDKEvent.PaymentReceived;
 308         assert bindings.ChannelManager_claim_funds(peer2.chan_manager, payment_preimage, new byte[32], ((bindings.LDKEvent.PaymentReceived)payment_recvd).amt);
 309         bindings.CVec_EventZ_free(peer2_events);
 310
 311         bindings.PeerManager_process_events(peer2.peer_manager);
 312         while (!list.isEmpty()) { list.poll().join(); }
 313         bindings.PeerManager_process_events(peer1.peer_manager);
 314         while (!list.isEmpty()) { list.poll().join(); }
 315
 316         long peer1_events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events);
 317         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer1_events);
 318         assert event_arr_info.datalen == 1;
 319         bindings.LDKEvent sent = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 320         assert sent instanceof bindings.LDKEvent.PaymentSent;
 321         assert Arrays.equals(((bindings.LDKEvent.PaymentSent)sent).payment_preimage, payment_preimage);
 322         bindings.CVec_EventZ_free(peer1_events);
 323
 324         peer1.free();
 325         peer2.free();
 326         bindings.SocketDescriptor_free(descriptor2);
 327         bindings.SocketDescriptor_free(descriptor1.val);
 328     }
 329 }