3 import org.bitcoinj.core.*;
4 import org.bitcoinj.script.Script;
5 import org.junit.jupiter.api.Test;
6 import org.ldk.enums.LDKNetwork;
7 import org.ldk.impl.bindings;
8 import org.ldk.structs.*;
10 import java.lang.ref.WeakReference;
11 import java.util.Arrays;
12 import java.util.HashMap;
13 import java.util.concurrent.ConcurrentLinkedQueue;
15 public class HumanObjectPeerTest {
18 final long fee_estimator;
19 final long tx_broadcaster;
20 final KeysManager keys;
21 final long keys_interface;
22 final ChannelManager chan_manager;
23 final long chan_manager_events;
24 final long chan_handler;
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.
33 bindings.LDKLogger log_trait = (String arg) -> System.out.println(seed + ": " + arg);
34 logger = bindings.LDKLogger_new(log_trait);
35 this.fee_estimator = bindings.LDKFeeEstimator_new(confirmation_target -> 0);
36 this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(tx -> {
37 // We should broadcast
39 this.monitors = new HashMap<>();
40 Watch chain_monitor = new Watch(new bindings.LDKWatch() {
42 public long watch_channel(long funding_txo, long monitor) {
43 synchronized (monitors) {
44 assert monitors.put(Arrays.toString(bindings.OutPoint_get_txid(funding_txo)), monitor) == null;
46 bindings.OutPoint_free(funding_txo);
47 return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
51 public long update_channel(long funding_txo, long update) {
52 synchronized (monitors) {
53 String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
54 assert monitors.containsKey(txid);
55 long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, logger);
56 assert bindings.LDKCResult_NoneMonitorUpdateErrorZ_result_ok(update_res);
57 bindings.CResult_NoneMonitorUpdateErrorZ_free(update_res);
59 bindings.OutPoint_free(funding_txo);
60 bindings.ChannelMonitorUpdate_free(update);
61 return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
65 public long release_pending_monitor_events() {
66 synchronized (monitors) {
67 assert monitors.size() <= 1;
68 for (Long mon : monitors.values()) {
69 return bindings.ChannelMonitor_get_and_clear_pending_monitor_events(mon);
72 return bindings.new_empty_slice_vec();
76 byte[] key_seed = new byte[32];
77 for (byte i = 0; i < 32; i++) {
78 key_seed[i] = (byte) (i ^ seed);
80 this.keys = new KeysManager(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
81 this.keys_interface = bindings.KeysManager_as_KeysInterface(keys._test_only_get_ptr());
82 this.chan_manager = new ChannelManager(LDKNetwork.LDKNetwork_Bitcoin, new FeeEstimator(confirmation_target -> 0), chain_monitor,
83 new BroadcasterInterface(tx -> {
84 }), new Logger(log_trait), keys.as_KeysInterface(), new UserConfig(), 1);
85 this.node_id = chan_manager.get_our_node_id();
86 this.chan_manager_events = bindings.ChannelManager_as_EventsProvider(chan_manager._test_only_get_ptr());
88 this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager._test_only_get_ptr());
89 this.router = bindings.NetGraphMsgHandler_new(0, logger);
90 this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
91 this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
93 byte[] random_data = new byte[32];
94 for (byte i = 0; i < 32; i++) {
95 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
97 this.peer_manager = bindings.PeerManager_new(message_handler, bindings.LDKKeysInterface_call_get_node_secret(keys_interface), random_data, logger);
101 void connect_block(Block b, Transaction t, int height) {
102 byte[] header = b.bitcoinSerialize();
105 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
106 new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
108 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
109 bindings.ChannelManager_block_connected(chan_manager._test_only_get_ptr(), header, txn, height);
110 synchronized (monitors) {
111 for (Long mon : monitors.values()) {
113 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
114 new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
116 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
117 long ret = bindings.ChannelMonitor_block_connected(mon, header, txn, height, tx_broadcaster, fee_estimator, logger);
118 bindings.CVec_C2Tuple_TxidCVec_TxOutZZZ_free(ret);
124 // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
125 bindings.Logger_free(logger);
126 bindings.FeeEstimator_free(fee_estimator);
127 bindings.BroadcasterInterface_free(tx_broadcaster);
128 bindings.KeysInterface_free(keys_interface);
129 bindings.EventsProvider_free(chan_manager_events);
130 bindings.ChannelMessageHandler_free(chan_handler);
131 bindings.NetGraphMsgHandler_free(router);
132 bindings.RoutingMessageHandler_free(route_handler);
133 //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
134 bindings.PeerManager_free(peer_manager);
135 synchronized (monitors) {
136 for (Long mon : monitors.values()) {
137 bindings.ChannelMonitor_free(mon);
143 class LongHolder { long val; }
145 byte[] do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, long data) {
146 byte[] arr = bindings.get_u8_slice_bytes(data);
147 Thread thread = new Thread(() -> {
148 long arr_vec = bindings.bytes_to_u8_vec(arr);
149 long res = bindings.PeerManager_read_event(pm, descriptor, arr_vec);
150 assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
151 //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
152 bindings.CResult_boolPeerHandleErrorZ_free(res);
153 bindings.CVec_u8Z_free(arr_vec);
160 boolean gc_ran = false;
163 protected void finalize() throws Throwable {
168 void do_test_message_handler() throws InterruptedException {
169 GcCheck obj = new GcCheck();
170 Peer peer1 = new Peer((byte) 1);
171 Peer peer2 = new Peer((byte) 2);
173 ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
174 LongHolder descriptor1 = new LongHolder();
175 LongHolder descriptor1ref = descriptor1;
176 bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
178 public long send_data(long data, boolean resume_read) {
179 return do_read_event(list, peer1.peer_manager, descriptor1ref.val, data).length;
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; }
186 long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
188 bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
190 public long send_data(long data, boolean resume_read) {
191 return do_read_event(list, peer2.peer_manager, descriptor2, data).length;
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; }
198 descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
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));
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);
209 while (!list.isEmpty()) { list.poll().join(); }
211 long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager._test_only_get_ptr(), peer2.node_id, 10000, 1000, 42, 0);
212 assert bindings.LDKCResult_NoneAPIErrorZ_result_ok(cc_res);
213 bindings.CResult_NoneAPIErrorZ_free(cc_res);
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(); }
220 long events = bindings.LDKEventsProvider_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);
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 peer1.chan_manager.funding_transaction_generated(chan_id, new OutPoint(funding.getTxId().getReversedBytes(), (short) 0));
239 bindings.PeerManager_process_events(peer1.peer_manager);
240 while (!list.isEmpty()) { list.poll().join(); }
241 bindings.PeerManager_process_events(peer2.peer_manager);
242 while (!list.isEmpty()) { list.poll().join(); }
244 events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
245 events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
246 assert events_arr_info.datalen == 1;
247 event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
248 assert event instanceof bindings.LDKEvent.FundingBroadcastSafe;
249 bindings.CVec_EventZ_free(events);
251 Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
252 peer1.connect_block(b, funding, 1);
253 peer2.connect_block(b, funding, 1);
255 for (int height = 2; height < 10; height++) {
256 b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
257 peer1.connect_block(b, null, height);
258 peer2.connect_block(b, null, height);
261 bindings.PeerManager_process_events(peer1.peer_manager);
262 bindings.PeerManager_process_events(peer2.peer_manager);
263 while (!list.isEmpty()) { list.poll().join(); }
265 long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager._test_only_get_ptr());
266 long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager._test_only_get_ptr());
267 assert bindings.vec_slice_len(peer1_chans) == 1;
268 assert bindings.vec_slice_len(peer2_chans) == 1;
269 long[] peer_1_chan_info = bindings.LDKCVecTempl_ChannelDetails_arr_info(peer1_chans);
270 assert peer_1_chan_info.length == 1;
271 assert bindings.ChannelDetails_get_channel_value_satoshis(peer_1_chan_info[0]) == 10000;
272 assert bindings.ChannelDetails_get_is_live(peer_1_chan_info[0]);
273 assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer_1_chan_info[0]), funding.getTxId().getReversedBytes());
274 assert Arrays.equals(bindings.ChannelDetails_get_channel_id(bindings.LDKCVecTempl_ChannelDetails_arr_info(peer2_chans)[0]), funding.getTxId().getReversedBytes());
275 bindings.CVec_ChannelDetailsZ_free(peer2_chans);
277 byte[] payment_preimage = new byte[32];
278 for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
279 byte[] payment_hash = Sha256Hash.hash(payment_preimage);
280 long netgraph = bindings.NetGraphMsgHandler_read_locked_graph(peer1.router);
281 long route = bindings.get_route(peer1.node_id, bindings.LockedNetworkGraph_graph(netgraph), peer2.node_id, peer1_chans,
282 bindings.LDKCVecTempl_RouteHint_new(new long[0]), 1000, 42, peer1.logger);
283 bindings.CVec_ChannelDetailsZ_free(peer1_chans);
284 assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(route);
285 bindings.LockedNetworkGraph_free(netgraph);
286 long payment_res = bindings.ChannelManager_send_payment(peer1.chan_manager._test_only_get_ptr(), bindings.LDKCResult_RouteLightningErrorZ_get_inner(route), payment_hash, new byte[32]);
287 bindings.CResult_RouteLightningErrorZ_free(route);
288 assert bindings.LDKCResult_NonePaymentSendFailureZ_result_ok(payment_res);
289 bindings.CResult_NonePaymentSendFailureZ_free(payment_res);
291 bindings.PeerManager_process_events(peer1.peer_manager);
292 while (!list.isEmpty()) { list.poll().join(); }
293 bindings.PeerManager_process_events(peer2.peer_manager);
294 while (!list.isEmpty()) { list.poll().join(); }
295 bindings.PeerManager_process_events(peer1.peer_manager);
296 while (!list.isEmpty()) { list.poll().join(); }
298 long peer2_events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer2.chan_manager_events);
299 bindings.VecOrSliceDef event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
300 assert event_arr_info.datalen == 1;
301 bindings.LDKEvent forwardable = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
302 assert forwardable instanceof bindings.LDKEvent.PendingHTLCsForwardable;
303 bindings.CVec_EventZ_free(peer2_events);
304 bindings.ChannelManager_process_pending_htlc_forwards(peer2.chan_manager._test_only_get_ptr());
306 peer2_events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer2.chan_manager_events);
307 event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
308 assert event_arr_info.datalen == 1;
309 bindings.LDKEvent payment_recvd = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
310 assert payment_recvd instanceof bindings.LDKEvent.PaymentReceived;
311 peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((bindings.LDKEvent.PaymentReceived) payment_recvd).amt);
312 bindings.CVec_EventZ_free(peer2_events);
314 bindings.PeerManager_process_events(peer2.peer_manager);
315 while (!list.isEmpty()) { list.poll().join(); }
316 bindings.PeerManager_process_events(peer1.peer_manager);
317 while (!list.isEmpty()) { list.poll().join(); }
319 long peer1_events = bindings.LDKEventsProvider_call_get_and_clear_pending_events(peer1.chan_manager_events);
320 event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer1_events);
321 assert event_arr_info.datalen == 1;
322 bindings.LDKEvent sent = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
323 assert sent instanceof bindings.LDKEvent.PaymentSent;
324 assert Arrays.equals(((bindings.LDKEvent.PaymentSent) sent).payment_preimage, payment_preimage);
325 bindings.CVec_EventZ_free(peer1_events);
329 bindings.SocketDescriptor_free(descriptor2);
330 bindings.SocketDescriptor_free(descriptor1.val);
334 public void test_message_handler() throws InterruptedException {
335 do_test_message_handler();
338 System.runFinalization();