_ 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.ArrayList;
  10 import java.util.Arrays;
  11 import java.util.HashMap;
  12 import java.util.List;
  13 import java.util.concurrent.ConcurrentHashMap;
  14 import java.util.concurrent.ConcurrentLinkedQueue;
  15
  16 public class PeerTest {
  17     class Peer {
  18         final long logger;
  19         final long fee_estimator;
  20         final long tx_broadcaster;
  21         final long chain_monitor;
  22         final long keys;
  23         final long keys_interface;
  24         final long config;
  25         final long chan_manager;
  26         final long chan_manager_events;
  27         final long chan_handler;
  28         final long router;
  29         final long route_handler;
  30         final long message_handler;
  31         final long peer_manager;
  32         HashMap<String, Long> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
  33         byte[] node_id;
  34         bindings.LDKFeeEstimator fee_est;
  35         bindings.LDKBroadcasterInterface broad_trait;
  36         bindings.LDKLogger log_trait;
  37         bindings.LDKWatch watcher;
  38
  39         Peer(byte seed) {
  40             this.log_trait = (String arg)-> System.out.println(seed + ": " + arg);
  41             logger = bindings.LDKLogger_new(this.log_trait);
  42             this.fee_est = confirmation_target -> 0;
  43             this.fee_estimator = bindings.LDKFeeEstimator_new(this.fee_est);
  44             this.broad_trait = tx -> {
  45                 // We should broadcast
  46             };
  47             this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(this.broad_trait);
  48             this.monitors = new HashMap<>();
  49             this.watcher = new bindings.LDKWatch() {
  50                 @Override
  51                 public long watch_channel(long funding_txo, long monitor) {
  52                     synchronized (monitors) {
  53                         assert monitors.put(Arrays.toString(bindings.OutPoint_get_txid(funding_txo)), monitor) == null;
  54                     }
  55                     bindings.OutPoint_free(funding_txo);
  56                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  57                 }
  58
  59                 @Override
  60                 public long update_channel(long funding_txo, long update) {
  61                     synchronized (monitors) {
  62                         String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
  63                         assert monitors.containsKey(txid);
  64                         long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, logger);
  65                         assert bindings.LDKCResult_NoneMonitorUpdateErrorZ_result_ok(update_res);
  66                         bindings.CResult_NoneMonitorUpdateErrorZ_free(update_res);
  67                     }
  68                     bindings.OutPoint_free(funding_txo);
  69                     bindings.ChannelMonitorUpdate_free(update);
  70                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  71                 }
  72
  73                 @Override
  74                 public long release_pending_monitor_events() {
  75                     synchronized (monitors) {
  76                         assert monitors.size() <= 1;
  77                         for (Long mon : monitors.values()) {
  78                             return bindings.ChannelMonitor_get_and_clear_pending_monitor_events(mon);
  79                         }
  80                     }
  81                     return bindings.new_empty_slice_vec();
  82                 }
  83             };
  84             this.chain_monitor = bindings.LDKWatch_new(this.watcher);
  85
  86             byte[] key_seed = new byte[32];
  87             for (byte i = 0; i < 32; i++) { key_seed[i] = (byte) (i ^ seed); }
  88             this.keys = bindings.KeysManager_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
  89             this.keys_interface = bindings.KeysManager_as_KeysInterface(keys);
  90             this.config = bindings.UserConfig_default();
  91             this.chan_manager = bindings.ChannelManager_new(LDKNetwork.LDKNetwork_Bitcoin, fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, 1);
  92             this.node_id = bindings.ChannelManager_get_our_node_id(chan_manager);
  93             this.chan_manager_events = bindings.ChannelManager_as_EventsProvider(chan_manager);
  94
  95             this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
  96             this.router = bindings.NetGraphMsgHandler_new(0, logger);
  97             this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
  98             this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
  99
 100             byte[] random_data = new byte[32];
 101             for (byte i = 0; i < 32; i++) { random_data[i] = (byte) ((i ^ seed) ^ 0xf0); }
 102             this.peer_manager = bindings.PeerManager_new(message_handler, bindings.KeysInterface_call_get_node_secret(keys_interface), random_data, logger);
 103         }
 104
 105         void connect_block(Block b, Transaction t, int height) {
 106             byte[] header = b.bitcoinSerialize();
 107             long txn;
 108             if (t != null)
 109                 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
 110                     new long[] {bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
 111             else
 112                 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
 113             bindings.ChannelManager_block_connected(chan_manager, header, txn, height);
 114             synchronized (monitors) {
 115                 for (Long mon : monitors.values()) {
 116                     if (t != null)
 117                         txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
 118                             new long[] {bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
 119                     else
 120                         txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
 121                     long ret = bindings.ChannelMonitor_block_connected(mon, header, txn, height, tx_broadcaster, fee_estimator, logger);
 122                     bindings.CVec_C2Tuple_TxidCVec_TxOutZZZ_free(ret);
 123                 }
 124             }
 125         }
 126
 127         void free() {
 128             // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
 129             bindings.Logger_free(logger);
 130             bindings.FeeEstimator_free(fee_estimator);
 131             bindings.BroadcasterInterface_free(tx_broadcaster);
 132             bindings.Watch_free(chain_monitor);
 133             bindings.KeysManager_free(keys);
 134             bindings.KeysInterface_free(keys_interface);
 135             bindings.UserConfig_free(config);
 136             bindings.ChannelManager_free(chan_manager);
 137             bindings.EventsProvider_free(chan_manager_events);
 138             bindings.ChannelMessageHandler_free(chan_handler);
 139             bindings.NetGraphMsgHandler_free(router);
 140             bindings.RoutingMessageHandler_free(route_handler);
 141             //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
 142             bindings.PeerManager_free(peer_manager);
 143             synchronized (monitors) {
 144                 for (Long mon : monitors.values()) {
 145                     bindings.ChannelMonitor_free(mon);
 146                 }
 147             }
 148         }
 149     }
 150
 151     class LongHolder { long val; }
 152
 153     byte[] do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, long data) {
 154         byte[] arr = bindings.get_u8_slice_bytes(data);
 155         Thread thread = new Thread(() -> {
 156             long arr_vec = bindings.bytes_to_u8_vec(arr);
 157             long res = bindings.PeerManager_read_event(pm, descriptor, arr_vec);
 158             assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
 159             //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
 160             bindings.CResult_boolPeerHandleErrorZ_free(res);
 161             bindings.CVec_u8Z_free(arr_vec);
 162         });
 163         thread.start();
 164         list.add(thread);
 165         return arr;
 166     }
 167
 168     @Test
 169     void test_message_handler() throws InterruptedException {
 170         Peer peer1 = new Peer((byte) 1);
 171         Peer peer2 = new Peer((byte) 2);
 172
 173         ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
 174         LongHolder descriptor1 = new LongHolder();
 175         LongHolder descriptor1ref = descriptor1;
 176         bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
 177             @Override
 178             public long send_data(long data, boolean resume_read) {
 179                 return do_read_event(list, peer1.peer_manager, descriptor1ref.val, data).length;
 180             }
 181
 182             @Override public void disconnect_socket() { assert false; }
 183             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
 184             @Override public long hash() { return 2; }
 185         };
 186         long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
 187
 188         bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
 189             @Override
 190             public long send_data(long data, boolean resume_read) {
 191                 return do_read_event(list, peer2.peer_manager, descriptor2, data).length;
 192             }
 193
 194             @Override public void disconnect_socket() { assert false; }
 195             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
 196             @Override public long hash() { return 1; }
 197         };
 198         descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
 199
 200         long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager, peer2.node_id, descriptor1.val);
 201         assert(bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
 202
 203         long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager, descriptor2);
 204         assert(bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
 205         bindings.CResult_NonePeerHandleErrorZ_free(con_res);
 206         do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_inner(init_vec));
 207         bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
 208
 209         while (!list.isEmpty()) { list.poll().join(); }
 210
 211         long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager, peer2.node_id, 10000, 1000, 42, 0);
 212         assert bindings.LDKCResult_NoneAPIErrorZ_result_ok(cc_res);
 213         bindings.CResult_NoneAPIErrorZ_free(cc_res);
 214
 215         bindings.PeerManager_process_events(peer1.peer_manager);
 216         while (!list.isEmpty()) { list.poll().join(); }
 217         bindings.PeerManager_process_events(peer2.peer_manager);
 218         while (!list.isEmpty()) { list.poll().join(); }
 219
 220         long events = bindings.EventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
 221         bindings.VecOrSliceDef events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 222         assert events_arr_info.datalen == 1;
 223         bindings.LDKEvent event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 224         assert event instanceof bindings.LDKEvent.FundingGenerationReady;
 225         assert ((bindings.LDKEvent.FundingGenerationReady)event).channel_value_satoshis == 10000;
 226         assert ((bindings.LDKEvent.FundingGenerationReady)event).user_channel_id == 42;
 227         byte[] funding_spk = bindings.get_u8_slice_bytes(((bindings.LDKEvent.FundingGenerationReady)event).output_script);
 228         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 229         byte[] chan_id = ((bindings.LDKEvent.FundingGenerationReady)event).temporary_channel_id;
 230         bindings.CVec_EventZ_free(events);
 231
 232         Transaction funding = new Transaction(NetworkParameters.fromID(NetworkParameters.ID_MAINNET));
 233         funding.addInput(new TransactionInput(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), funding, new byte[0]));
 234         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 235         funding.getInput(0).getWitness().setPush(0, new byte[] {0x1});
 236         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 237         long funding_txo = bindings.OutPoint_new(funding.getTxId().getReversedBytes(), (short) 0);
 238         bindings.ChannelManager_funding_transaction_generated(peer1.chan_manager, chan_id, funding_txo);
 239         bindings.OutPoint_free(funding_txo);
 240
 241         bindings.PeerManager_process_events(peer1.peer_manager);
 242         while (!list.isEmpty()) { list.poll().join(); }
 243         bindings.PeerManager_process_events(peer2.peer_manager);
 244         while (!list.isEmpty()) { list.poll().join(); }
 245
 246         events = bindings.EventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
 247         events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 248         assert events_arr_info.datalen == 1;
 249         event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 250         assert event instanceof bindings.LDKEvent.FundingBroadcastSafe;
 251         bindings.CVec_EventZ_free(events);
 252
 253         Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 254         peer1.connect_block(b, funding, 1);
 255         peer2.connect_block(b, funding, 1);
 256
 257         for (int height = 2; height < 10; height++) {
 258             b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 259             peer1.connect_block(b, null, height);
 260             peer2.connect_block(b, null, height);
 261         }
 262
 263         bindings.PeerManager_process_events(peer1.peer_manager);
 264         bindings.PeerManager_process_events(peer2.peer_manager);
 265         while (!list.isEmpty()) { list.poll().join(); }
 266
 267         long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager);
 268         long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager);
 269         assert bindings.vec_slice_len(peer1_chans) == 1;
 270         assert bindings.vec_slice_len(peer2_chans) == 1;
 271         long[] peer_1_chan_info = bindings.LDKCVecTempl_ChannelDetails_arr_info(peer1_chans);
 272         assert peer_1_chan_info.length == 1;
 273         assert bindings.ChannelDetails_get_channel_value_satoshis(peer_1_chan_info[0]) == 10000;
 274         assert bindings.ChannelDetails_get_is_live(peer_1_chan_info[0]);
 275         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer_1_chan_info[0]), funding.getTxId().getReversedBytes());
 276         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(bindings.LDKCVecTempl_ChannelDetails_arr_info(peer2_chans)[0]), funding.getTxId().getReversedBytes());
 277         bindings.CVec_ChannelDetailsZ_free(peer2_chans);
 278
 279         byte[] payment_preimage = new byte[32];
 280         for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
 281         byte[] payment_hash = Sha256Hash.hash(payment_preimage);
 282         long netgraph = bindings.NetGraphMsgHandler_read_locked_graph(peer1.router);
 283         long route = bindings.get_route(peer1.node_id, bindings.LockedNetworkGraph_graph(netgraph), peer2.node_id, peer1_chans,
 284                 bindings.LDKCVecTempl_RouteHint_new(new long[0]), 1000, 42, peer1.logger);
 285         bindings.CVec_ChannelDetailsZ_free(peer1_chans);
 286         assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(route);
 287         bindings.LockedNetworkGraph_free(netgraph);
 288         long payment_res = bindings.ChannelManager_send_payment(peer1.chan_manager, bindings.LDKCResult_RouteLightningErrorZ_get_inner(route), payment_hash, new byte[32]);
 289         bindings.CResult_RouteLightningErrorZ_free(route);
 290         assert bindings.LDKCResult_NonePaymentSendFailureZ_result_ok(payment_res);
 291         bindings.CResult_NonePaymentSendFailureZ_free(payment_res);
 292
 293         bindings.PeerManager_process_events(peer1.peer_manager);
 294         while (!list.isEmpty()) { list.poll().join(); }
 295         bindings.PeerManager_process_events(peer2.peer_manager);
 296         while (!list.isEmpty()) { list.poll().join(); }
 297         bindings.PeerManager_process_events(peer1.peer_manager);
 298         while (!list.isEmpty()) { list.poll().join(); }
 299
 300         long peer2_events = bindings.EventsProvider_call_get_and_clear_pending_events(peer2.chan_manager_events);
 301         bindings.VecOrSliceDef event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 302         assert event_arr_info.datalen == 1;
 303         bindings.LDKEvent forwardable = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 304         assert forwardable instanceof bindings.LDKEvent.PendingHTLCsForwardable;
 305         bindings.CVec_EventZ_free(peer2_events);
 306         bindings.ChannelManager_process_pending_htlc_forwards(peer2.chan_manager);
 307
 308         peer2_events = bindings.EventsProvider_call_get_and_clear_pending_events(peer2.chan_manager_events);
 309         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 310         assert event_arr_info.datalen == 1;
 311         bindings.LDKEvent payment_recvd = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 312         assert payment_recvd instanceof bindings.LDKEvent.PaymentReceived;
 313         assert bindings.ChannelManager_claim_funds(peer2.chan_manager, payment_preimage, new byte[32], ((bindings.LDKEvent.PaymentReceived)payment_recvd).amt);
 314         bindings.CVec_EventZ_free(peer2_events);
 315
 316         bindings.PeerManager_process_events(peer2.peer_manager);
 317         while (!list.isEmpty()) { list.poll().join(); }
 318         bindings.PeerManager_process_events(peer1.peer_manager);
 319         while (!list.isEmpty()) { list.poll().join(); }
 320
 321         long peer1_events = bindings.EventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
 322         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer1_events);
 323         assert event_arr_info.datalen == 1;
 324         bindings.LDKEvent sent = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 325         assert sent instanceof bindings.LDKEvent.PaymentSent;
 326         assert Arrays.equals(((bindings.LDKEvent.PaymentSent)sent).payment_preimage, payment_preimage);
 327         bindings.CVec_EventZ_free(peer1_events);
 328
 329         peer1.free();
 330         peer2.free();
 331         bindings.SocketDescriptor_free(descriptor2);
 332         bindings.SocketDescriptor_free(descriptor1.val);
 333     }
 334 }