_ 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.concurrent.ConcurrentHashMap;
  13 import java.util.concurrent.ConcurrentLinkedQueue;
  14
  15 public class PeerTest {
  16     class Peer {
  17         final long logger;
  18         final long fee_estimator;
  19         final long tx_broadcaster;
  20         final long chain_monitor;
  21         final long keys;
  22         final long keys_interface;
  23         final long config;
  24         final long chan_manager;
  25         final long chan_manager_events;
  26         final long chan_handler;
  27         final long router;
  28         final long route_handler;
  29         final long message_handler;
  30         final long peer_manager;
  31         HashMap<byte[], Long> monitors;
  32
  33         Peer(byte seed) {
  34             logger = bindings.LDKLogger_new((String arg)-> System.out.println(seed + ": " + arg));
  35             this.fee_estimator = bindings.LDKFeeEstimator_new(confirmation_target -> 0);
  36             this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(tx -> {
  37                 // We should broadcast
  38             });
  39             this.monitors = new HashMap<>();
  40             this.chain_monitor = bindings.LDKWatch_new(new bindings.LDKWatch() {
  41                 @Override
  42                 public long watch_channel(long funding_txo, long monitor) {
  43                     synchronized (monitors) {
  44                         assert monitors.put(bindings.OutPoint_get_txid(funding_txo), monitor) == null;
  45                     }
  46                     bindings.OutPoint_free(funding_txo);
  47                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  48                 }
  49
  50                 @Override
  51                 public long update_channel(long funding_txo, long update) {
  52                     synchronized (monitors) {
  53                         bindings.ChannelMonitor_update_monitor(monitors.get(bindings.OutPoint_get_txid(funding_txo)), update, tx_broadcaster, logger);
  54                     }
  55                     bindings.OutPoint_free(funding_txo);
  56                     bindings.ChannelMonitorUpdate_free(update);
  57                     return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
  58                 }
  59
  60                 @Override
  61                 public long release_pending_monitor_events() {
  62                     return bindings.new_empty_slice_vec();
  63                 }
  64             });
  65
  66             byte[] key_seed = new byte[32];
  67             for (byte i = 0; i < 32; i++) { key_seed[i] = (byte) (i ^ seed); }
  68             this.keys = bindings.KeysManager_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
  69             this.keys_interface = bindings.KeysManager_as_KeysInterface(keys);
  70             this.config = bindings.UserConfig_default();
  71             this.chan_manager = bindings.ChannelManager_new(LDKNetwork.LDKNetwork_Bitcoin, fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, 1);
  72             this.chan_manager_events = bindings.ChannelManager_as_EventsProvider(chan_manager);
  73
  74             this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
  75             this.router = bindings.NetGraphMsgHandler_new(0, logger);
  76             this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
  77             this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
  78
  79             byte[] random_data = new byte[32];
  80             for (byte i = 0; i < 32; i++) { random_data[i] = (byte) ((i ^ seed) ^ 0xf0); }
  81             this.peer_manager = bindings.PeerManager_new(message_handler, bindings.LDKKeysInterface_call_get_node_secret(keys_interface), random_data, logger);
  82         }
  83
  84         void connect_block(Block b, Transaction t) {
  85             byte[] header = b.bitcoinSerialize();
  86             long txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
  87                     new long[] {bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
  88             bindings.ChannelManager_block_connected(chan_manager, header, txn, 1);
  89             synchronized (monitors) {
  90                 for (Long mon : monitors.values()) {
  91                     txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
  92                             new long[] {bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
  93                     long ret = bindings.ChannelMonitor_block_connected(mon, header, txn, 1, tx_broadcaster, fee_estimator, logger);
  94                     bindings.CVec_C2Tuple_TxidCVec_TxOutZZZ_free(ret);
  95                 }
  96             }
  97         }
  98
  99         void free() {
 100             // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
 101             bindings.Logger_free(logger);
 102             bindings.FeeEstimator_free(fee_estimator);
 103             bindings.BroadcasterInterface_free(tx_broadcaster);
 104             bindings.Watch_free(chain_monitor);
 105             bindings.KeysManager_free(keys);
 106             bindings.KeysInterface_free(keys_interface);
 107             bindings.ChannelManager_free(chan_manager);
 108             bindings.EventsProvider_free(chan_manager_events);
 109             bindings.ChannelMessageHandler_free(chan_handler);
 110             bindings.NetGraphMsgHandler_free(router);
 111             bindings.RoutingMessageHandler_free(route_handler);
 112             //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
 113             bindings.PeerManager_free(peer_manager);
 114             synchronized (monitors) {
 115                 for (Long mon : monitors.values()) {
 116                     bindings.ChannelMonitor_free(mon);
 117                 }
 118             }
 119         }
 120     }
 121
 122     class LongHolder { long val; }
 123
 124     byte[] do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, long data) {
 125         byte[] arr = bindings.get_u8_slice_bytes(data);
 126         Thread thread = new Thread(() -> {
 127             long arr_vec = bindings.bytes_to_u8_vec(arr);
 128             long res = bindings.PeerManager_read_event(pm, descriptor, arr_vec);
 129             assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
 130             //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
 131             bindings.CResult_boolPeerHandleErrorZ_free(res);
 132             bindings.CVec_u8Z_free(arr_vec);
 133         });
 134         thread.start();
 135         list.add(thread);
 136         return arr;
 137     }
 138
 139     @Test
 140     void test_message_handler() throws InterruptedException {
 141         Peer peer1 = new Peer((byte) 1);
 142         Peer peer2 = new Peer((byte) 2);
 143
 144         ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
 145         LongHolder descriptor1 = new LongHolder();
 146         LongHolder descriptor1ref = descriptor1;
 147         long descriptor2 = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
 148             @Override
 149             public long send_data(long data, boolean resume_read) {
 150                 return do_read_event(list, peer1.peer_manager, descriptor1ref.val, data).length;
 151             }
 152
 153             @Override public void disconnect_socket() { assert false; }
 154             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
 155             @Override public long hash() { return 2; }
 156         });
 157
 158         descriptor1.val = bindings.LDKSocketDescriptor_new(new bindings.LDKSocketDescriptor() {
 159             @Override
 160             public long send_data(long data, boolean resume_read) {
 161                 return do_read_event(list, peer2.peer_manager, descriptor2, data).length;
 162             }
 163
 164             @Override public void disconnect_socket() { assert false; }
 165             @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
 166             @Override public long hash() { return 1; }
 167         });
 168
 169         long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager, bindings.ChannelManager_get_our_node_id(peer2.chan_manager), descriptor1.val);
 170         assert(bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
 171
 172         long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager, descriptor2);
 173         assert(bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
 174         bindings.CResult_NonePeerHandleErrorZ_free(con_res);
 175         do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_inner(init_vec));
 176         bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
 177
 178         while (!list.isEmpty()) { list.poll().join(); }
 179
 180         long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager, bindings.ChannelManager_get_our_node_id(peer2.chan_manager), 10000, 1000, 42, 0);
 181         assert bindings.LDKCResult_NoneAPIErrorZ_result_ok(cc_res);
 182         bindings.CResult_NoneAPIErrorZ_free(cc_res);
 183
 184         bindings.PeerManager_process_events(peer1.peer_manager);
 185         while (!list.isEmpty()) { list.poll().join(); }
 186         bindings.PeerManager_process_events(peer2.peer_manager);
 187         while (!list.isEmpty()) { list.poll().join(); }
 188
 189         long events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
 190         bindings.VecOrSliceDef events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 191         assert events_arr_info.datalen == 1;
 192         bindings.LDKEvent event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 193         assert event instanceof bindings.LDKEvent.FundingGenerationReady;
 194         assert ((bindings.LDKEvent.FundingGenerationReady)event).channel_value_satoshis == 10000;
 195         assert ((bindings.LDKEvent.FundingGenerationReady)event).user_channel_id == 42;
 196         byte[] funding_spk = bindings.get_u8_slice_bytes(((bindings.LDKEvent.FundingGenerationReady)event).output_script);
 197         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 198         byte[] chan_id = ((bindings.LDKEvent.FundingGenerationReady)event).temporary_channel_id;
 199         bindings.CVec_EventZ_free(events);
 200
 201         Transaction funding = new Transaction(NetworkParameters.fromID(NetworkParameters.ID_MAINNET));
 202         funding.addInput(new TransactionInput(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), funding, new byte[0]));
 203         //funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 204         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 205         bindings.ChannelManager_funding_transaction_generated(peer1.chan_manager, chan_id, bindings.OutPoint_new(funding.getTxId().getBytes(), (short) 0));
 206
 207         bindings.PeerManager_process_events(peer1.peer_manager);
 208         while (!list.isEmpty()) { list.poll().join(); }
 209         bindings.PeerManager_process_events(peer2.peer_manager);
 210         while (!list.isEmpty()) { list.poll().join(); }
 211
 212         events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
 213         events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
 214         assert events_arr_info.datalen == 1;
 215         event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
 216         assert event instanceof bindings.LDKEvent.FundingBroadcastSafe;
 217         bindings.CVec_EventZ_free(events);
 218
 219         Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 220         peer1.connect_block(b, funding);
 221         peer2.connect_block(b, funding);
 222
 223         long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager);
 224         long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager);
 225         assert bindings.vec_slice_len(peer1_chans) == 1;
 226         assert bindings.vec_slice_len(peer2_chans) == 1;
 227         long[] peer_1_chan_info = bindings.LDKCVecTempl_ChannelDetails_arr_info(peer1_chans);
 228         assert peer_1_chan_info.length == 1;
 229         assert bindings.ChannelDetails_get_channel_value_satoshis(peer_1_chan_info[0]) == 10000;
 230         assert !bindings.ChannelDetails_get_is_live(peer_1_chan_info[0]);
 231         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer_1_chan_info[0]), funding.getTxId().getBytes());
 232         assert Arrays.equals(bindings.ChannelDetails_get_channel_id(bindings.LDKCVecTempl_ChannelDetails_arr_info(peer2_chans)[0]), funding.getTxId().getBytes());
 233         bindings.CVec_ChannelDetailsZ_free(peer1_chans);
 234         bindings.CVec_ChannelDetailsZ_free(peer2_chans);
 235
 236         peer1.free();
 237         peer2.free();
 238         bindings.SocketDescriptor_free(descriptor2);
 239         bindings.SocketDescriptor_free(descriptor1.val);
 240     }
 241 }