_ 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
  35         Peer(byte seed) {
  36             logger = bindings.LDKLogger_new((String arg)-> System.out.println(seed + ": " + arg));
  37             this.fee_estimator = bindings.LDKFeeEstimator_new(confirmation_target -> 0);
  38             this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(tx -> {
  39                 // We should broadcast
  40             });
  41             this.monitors = new HashMap<>();
  42             this.chain_monitor = bindings.LDKWatch_new(new bindings.LDKWatch() {
  43                 @Override
  44                 public long watch_channel(long funding_txo, long monitor) {
  45                     synchronized (monitors) {
  46                         assert monitors.put(Arrays.toString(bindings.OutPoint_get_txid(funding_txo)), monitor) == null;
  47                     }
  48                     bindings.OutPoint_free(funding_txo);
  49                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  50                 }
  51
  52                 @Override
  53                 public long update_channel(long funding_txo, long update) {
  54                     synchronized (monitors) {
  55                         String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
  56                         assert monitors.containsKey(txid);
  57                         long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, logger);
  58                         assert bindings.LDKCResult_NoneMonitorUpdateErrorZ_result_ok(update_res);
  59                         bindings.CResult_NoneMonitorUpdateErrorZ_free(update_res);
  60                     }
  61                     bindings.OutPoint_free(funding_txo);
  62                     //bindings.ChannelMonitorUpdate_free(update); We'll need this after 681
  63                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  64                 }
  65
  66                 @Override
  67                 public long release_pending_monitor_events() {
  68                     synchronized (monitors) {
  69                         assert monitors.size() <= 1;
  70                         for (Long mon : monitors.values()) {
  71                             return bindings.ChannelMonitor_get_and_clear_pending_monitor_events(mon);
  72                         }
  73                     }
  74                     return bindings.new_empty_slice_vec();
  75                 }
  76             });
  77
  78             byte[] key_seed = new byte[32];
  79             for (byte i = 0; i < 32; i++) { key_seed[i] = (byte) (i ^ seed); }
  80             this.keys = bindings.KeysManager_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
  81             this.keys_interface = bindings.KeysManager_as_KeysInterface(keys);
  82             this.config = bindings.UserConfig_default();
  83             this.chan_manager = bindings.ChannelManager_new(LDKNetwork.LDKNetwork_Bitcoin, fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, 1);
  84             this.node_id = bindings.ChannelManager_get_our_node_id(chan_manager);
  85             this.chan_manager_events = bindings.ChannelManager_as_EventsProvider(chan_manager);
  86
  87             this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
  88             this.router = bindings.NetGraphMsgHandler_new(0, logger);
  89             this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
  90             this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
  91
  92             byte[] random_data = new byte[32];
  93             for (byte i = 0; i < 32; i++) { random_data[i] = (byte) ((i ^ seed) ^ 0xf0); }
  94             this.peer_manager = bindings.PeerManager_new(message_handler, bindings.LDKKeysInterface_call_get_node_secret(keys_interface), random_data, logger);
  95         }
  96
  97         void connect_block(Block b, Transaction t, int height) {
  98             byte[] header = b.bitcoinSerialize();
  99             long txn;
 100             if (t != null)
 101                 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
 102                     new long[] {bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
 103             else
 104                 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
 105             bindings.ChannelManager_block_connected(chan_manager, header, txn, height);
 106             synchronized (monitors) {
 107                 for (Long mon : monitors.values()) {
 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                     long ret = bindings.ChannelMonitor_block_connected(mon, header, txn, height, tx_broadcaster, fee_estimator, logger);
 114                     bindings.CVec_C2Tuple_TxidCVec_TxOutZZZ_free(ret);
 115                 }
 116             }
 117         }
 118
 119         void free() {
 120             // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
 121             bindings.Logger_free(logger);
 122             bindings.FeeEstimator_free(fee_estimator);
 123             bindings.BroadcasterInterface_free(tx_broadcaster);
 124             bindings.Watch_free(chain_monitor);
 125             bindings.KeysManager_free(keys);
 126             bindings.KeysInterface_free(keys_interface);
 127             bindings.ChannelManager_free(chan_manager);
 128             bindings.EventsProvider_free(chan_manager_events);
 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     byte[] do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, long data) {
 145         byte[] arr = bindings.get_u8_slice_bytes(data);
 146         Thread thread = new Thread(() -> {
 147             long arr_vec = bindings.bytes_to_u8_vec(arr);
 148             long res = bindings.PeerManager_read_event(pm, descriptor, arr_vec);
 149             assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
 150             //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
 151             bindings.CResult_boolPeerHandleErrorZ_free(res);
 152             bindings.CVec_u8Z_free(arr_vec);
 153         });
 154         thread.start();
 155         list.add(thread);
 156         return arr;
 157     }
 158
 159     @Test
 160     void test_message_handler() throws InterruptedException {
 161         Peer peer1 = new Peer((byte) 1);
 162         Peer peer2 = new Peer((byte) 2);
 163
 164         ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
 165         LongHolder descriptor1 = new LongHolder();
 166         LongHolder descriptor1ref = descriptor1;
 167         long descriptor2 = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
 168             @Override
 169             public long send_data(long data, boolean resume_read) {
 170                 return do_read_event(list, peer1.peer_manager, descriptor1ref.val, data).length;
 171             }
 172
 173             @Override public void disconnect_socket() { assert false; }
 174             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
 175             @Override public long hash() { return 2; }
 176         });
 177
 178         descriptor1.val = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
 179             @Override
 180             public long send_data(long data, boolean resume_read) {
 181                 return do_read_event(list, peer2.peer_manager, descriptor2, data).length;
 182             }
 183
 184             @Override public void disconnect_socket() { assert false; }
 185             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
 186             @Override public long hash() { return 1; }
 187         });
 188
 189         long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager, peer2.node_id, descriptor1.val);
 190         assert(bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
 191
 192         long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager, descriptor2);
 193         assert(bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
 194         bindings.CResult_NonePeerHandleErrorZ_free(con_res);
 195         do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_inner(init_vec));
 196         bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
 197
 198         while (!list.isEmpty()) { list.poll().join(); }
 199
 200         long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager, peer2.node_id, 10000, 1000, 42, 0);
 201         assert bindings.LDKCResult_NoneAPIErrorZ_result_ok(cc_res);
 202         bindings.CResult_NoneAPIErrorZ_free(cc_res);
 203
 204         bindings.PeerManager_process_events(peer1.peer_manager);
 205         while (!list.isEmpty()) { list.poll().join(); }
 206         bindings.PeerManager_process_events(peer2.peer_manager);
 207         while (!list.isEmpty()) { list.poll().join(); }
 208
 209         long events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
 210         bindings.VecOrSliceDef events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 211         assert events_arr_info.datalen == 1;
 212         bindings.LDKEvent event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 213         assert event instanceof bindings.LDKEvent.FundingGenerationReady;
 214         assert ((bindings.LDKEvent.FundingGenerationReady)event).channel_value_satoshis == 10000;
 215         assert ((bindings.LDKEvent.FundingGenerationReady)event).user_channel_id == 42;
 216         byte[] funding_spk = bindings.get_u8_slice_bytes(((bindings.LDKEvent.FundingGenerationReady)event).output_script);
 217         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 218         byte[] chan_id = ((bindings.LDKEvent.FundingGenerationReady)event).temporary_channel_id;
 219         bindings.CVec_EventZ_free(events);
 220
 221         Transaction funding = new Transaction(NetworkParameters.fromID(NetworkParameters.ID_MAINNET));
 222         funding.addInput(new TransactionInput(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), funding, new byte[0]));
 223         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 224         funding.getInput(0).getWitness().setPush(0, new byte[] {0x1});
 225         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 226         bindings.ChannelManager_funding_transaction_generated(peer1.chan_manager, chan_id, bindings.OutPoint_new(funding.getTxId().getReversedBytes(), (short) 0));
 227
 228         bindings.PeerManager_process_events(peer1.peer_manager);
 229         while (!list.isEmpty()) { list.poll().join(); }
 230         bindings.PeerManager_process_events(peer2.peer_manager);
 231         while (!list.isEmpty()) { list.poll().join(); }
 232
 233         events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
 234         events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 235         assert events_arr_info.datalen == 1;
 236         event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 237         assert event instanceof bindings.LDKEvent.FundingBroadcastSafe;
 238         bindings.CVec_EventZ_free(events);
 239
 240         Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 241         peer1.connect_block(b, funding, 1);
 242         peer2.connect_block(b, funding, 1);
 243
 244         for (int height = 2; height < 10; height++) {
 245             b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 246             peer1.connect_block(b, null, height);
 247             peer2.connect_block(b, null, height);
 248         }
 249
 250         bindings.PeerManager_process_events(peer1.peer_manager);
 251         bindings.PeerManager_process_events(peer2.peer_manager);
 252         while (!list.isEmpty()) { list.poll().join(); }
 253
 254         long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager);
 255         long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager);
 256         assert bindings.vec_slice_len(peer1_chans) == 1;
 257         assert bindings.vec_slice_len(peer2_chans) == 1;
 258         long[] peer_1_chan_info = bindings.LDKCVecTempl_ChannelDetails_arr_info(peer1_chans);
 259         assert peer_1_chan_info.length == 1;
 260         assert bindings.ChannelDetails_get_channel_value_satoshis(peer_1_chan_info[0]) == 10000;
 261         assert bindings.ChannelDetails_get_is_live(peer_1_chan_info[0]);
 262         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer_1_chan_info[0]), funding.getTxId().getReversedBytes());
 263         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(bindings.LDKCVecTempl_ChannelDetails_arr_info(peer2_chans)[0]), funding.getTxId().getReversedBytes());
 264         bindings.CVec_ChannelDetailsZ_free(peer2_chans);
 265
 266         byte[] payment_preimage = new byte[32];
 267         for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
 268         byte[] payment_hash = Sha256Hash.hash(payment_preimage);
 269         long netgraph = bindings.NetGraphMsgHandler_read_locked_graph(peer1.router);
 270         long route = bindings.get_route(peer1.node_id, bindings.LockedNetworkGraph_graph(netgraph), peer2.node_id, peer1_chans,
 271                 bindings.LDKCVecTempl_RouteHint_new(new long[0]), 1000, 42, peer1.logger);
 272         bindings.CVec_ChannelDetailsZ_free(peer1_chans);
 273         assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(route);
 274         bindings.LockedNetworkGraph_free(netgraph);
 275         long payment_res = bindings.ChannelManager_send_payment(peer1.chan_manager, bindings.LDKCResult_RouteLightningErrorZ_get_inner(route), payment_hash, new byte[32]);
 276         bindings.CResult_RouteLightningErrorZ_free(route);
 277         assert bindings.LDKCResult_NonePaymentSendFailureZ_result_ok(payment_res);
 278         bindings.CResult_NonePaymentSendFailureZ_free(payment_res);
 279
 280         bindings.PeerManager_process_events(peer1.peer_manager);
 281         while (!list.isEmpty()) { list.poll().join(); }
 282         bindings.PeerManager_process_events(peer2.peer_manager);
 283         while (!list.isEmpty()) { list.poll().join(); }
 284         bindings.PeerManager_process_events(peer1.peer_manager);
 285         while (!list.isEmpty()) { list.poll().join(); }
 286
 287         long peer2_events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer2.chan_manager_events);
 288         bindings.VecOrSliceDef event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 289         assert event_arr_info.datalen == 1;
 290         bindings.LDKEvent forwardable = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 291         assert forwardable instanceof bindings.LDKEvent.PendingHTLCsForwardable;
 292         bindings.CVec_EventZ_free(peer2_events);
 293         bindings.ChannelManager_process_pending_htlc_forwards(peer2.chan_manager);
 294
 295         peer2_events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer2.chan_manager_events);
 296         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
 297         assert event_arr_info.datalen == 1;
 298         bindings.LDKEvent payment_recvd = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 299         assert payment_recvd instanceof bindings.LDKEvent.PaymentReceived;
 300         assert bindings.ChannelManager_claim_funds(peer2.chan_manager, payment_preimage, new byte[32], ((bindings.LDKEvent.PaymentReceived)payment_recvd).amt);
 301         bindings.CVec_EventZ_free(peer2_events);
 302
 303         bindings.PeerManager_process_events(peer2.peer_manager);
 304         while (!list.isEmpty()) { list.poll().join(); }
 305         bindings.PeerManager_process_events(peer1.peer_manager);
 306         while (!list.isEmpty()) { list.poll().join(); }
 307
 308         long peer1_events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
 309         event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer1_events);
 310         assert event_arr_info.datalen == 1;
 311         bindings.LDKEvent sent = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
 312         assert sent instanceof bindings.LDKEvent.PaymentSent;
 313         assert Arrays.equals(((bindings.LDKEvent.PaymentSent)sent).payment_preimage, payment_preimage);
 314         bindings.CVec_EventZ_free(peer1_events);
 315
 316         peer1.free();
 317         peer2.free();
 318         bindings.SocketDescriptor_free(descriptor2);
 319         bindings.SocketDescriptor_free(descriptor1.val);
 320     }
 321 }