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 KeysInterface keys_interface;
22 final ChannelManager chan_manager;
23 final EventsProvider chan_manager_events;
24 final NetGraphMsgHandler router;
25 final PeerManager peer_manager;
26 HashMap<String, Long> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
30 bindings.LDKLogger log_trait = (String arg) -> System.out.println(seed + ": " + arg);
31 logger = bindings.LDKLogger_new(log_trait);
32 this.fee_estimator = bindings.LDKFeeEstimator_new(confirmation_target -> 0);
33 this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(tx -> {
34 // We should broadcast
36 this.monitors = new HashMap<>();
37 Watch chain_monitor = new Watch(new bindings.LDKWatch() {
39 public long watch_channel(long funding_txo, long monitor) {
40 synchronized (monitors) {
41 assert monitors.put(Arrays.toString(bindings.OutPoint_get_txid(funding_txo)), monitor) == null;
43 bindings.OutPoint_free(funding_txo);
44 return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
48 public long update_channel(long funding_txo, long update) {
49 synchronized (monitors) {
50 String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
51 assert monitors.containsKey(txid);
52 long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, logger);
53 assert bindings.LDKCResult_NoneMonitorUpdateErrorZ_result_ok(update_res);
54 bindings.CResult_NoneMonitorUpdateErrorZ_free(update_res);
56 bindings.OutPoint_free(funding_txo);
57 bindings.ChannelMonitorUpdate_free(update);
58 return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
62 public long release_pending_monitor_events() {
63 synchronized (monitors) {
64 assert monitors.size() <= 1;
65 for (Long mon : monitors.values()) {
66 return bindings.ChannelMonitor_get_and_clear_pending_monitor_events(mon);
69 return bindings.new_empty_slice_vec();
73 byte[] key_seed = new byte[32];
74 for (byte i = 0; i < 32; i++) {
75 key_seed[i] = (byte) (i ^ seed);
77 this.keys = new KeysManager(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
78 this.keys_interface = keys.as_KeysInterface();
79 this.chan_manager = new ChannelManager(LDKNetwork.LDKNetwork_Bitcoin, new FeeEstimator(confirmation_target -> 0), chain_monitor,
80 new BroadcasterInterface(tx -> {
81 }), new Logger(log_trait), keys.as_KeysInterface(), new UserConfig(), 1);
82 this.node_id = chan_manager.get_our_node_id();
83 this.chan_manager_events = chan_manager.as_EventsProvider();
84 this.router = new NetGraphMsgHandler(null, new Logger(log_trait));
86 byte[] random_data = new byte[32];
87 for (byte i = 0; i < 32; i++) {
88 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
90 this.peer_manager = new PeerManager(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, new Logger(log_trait));
94 void connect_block(Block b, Transaction t, int height) {
95 byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
98 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
99 new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
101 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
102 bindings.ChannelManager_block_connected(chan_manager._test_only_get_ptr(), header, txn, height);
103 synchronized (monitors) {
104 for (Long mon : monitors.values()) {
106 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(
107 new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, bindings.new_txpointer_copy_data(t.bitcoinSerialize()))});
109 txn = bindings.LDKCVecTempl_C2TupleTempl_usize__Transaction_new(new long[0]);
110 long ret = bindings.ChannelMonitor_block_connected(mon, header, txn, height, tx_broadcaster, fee_estimator, logger);
111 bindings.CVec_C2Tuple_TxidCVec_TxOutZZZ_free(ret);
117 // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
118 bindings.Logger_free(logger);
119 bindings.FeeEstimator_free(fee_estimator);
120 bindings.BroadcasterInterface_free(tx_broadcaster);
121 synchronized (monitors) {
122 for (Long mon : monitors.values()) {
123 bindings.ChannelMonitor_free(mon);
128 long get_route(byte[] dest_node, long our_chans) {
129 try (LockedNetworkGraph netgraph = this.router.read_locked_graph()) {
130 //r = new WeakReference(netgraph);
131 NetworkGraph graph = netgraph.graph();
132 return bindings.get_route(this.node_id, graph._test_only_get_ptr(), dest_node, our_chans,
133 bindings.LDKCVecTempl_RouteHint_new(new long[0]), 1000, 42, this.logger);
138 class LongHolder { long val; }
140 java.util.LinkedList<WeakReference> must_free_objs = new java.util.LinkedList();
141 void do_read_event(ConcurrentLinkedQueue<Thread> list, PeerManager pm, long descriptor, byte[] data) {
142 Thread thread = new Thread(() -> {
143 long res = bindings.PeerManager_read_event(pm._test_only_get_ptr(), descriptor, data);
144 assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
145 //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
146 bindings.CResult_boolPeerHandleErrorZ_free(res);
150 must_free_objs.add(new WeakReference(data));
153 boolean gc_ran = false;
156 protected void finalize() throws Throwable {
161 void do_test_message_handler() throws InterruptedException {
162 GcCheck obj = new GcCheck();
163 Peer peer1 = new Peer((byte) 1);
164 Peer peer2 = new Peer((byte) 2);
166 ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
167 LongHolder descriptor1 = new LongHolder();
168 LongHolder descriptor1ref = descriptor1;
169 bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
171 public long send_data(byte[] data, boolean resume_read) {
172 do_read_event(list, peer1.peer_manager, descriptor1ref.val, data);
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; }
180 long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
182 bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
184 public long send_data(byte[] data, boolean resume_read) {
185 do_read_event(list, peer2.peer_manager, descriptor2, data);
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; }
193 descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
195 long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager._test_only_get_ptr(), peer2.node_id, descriptor1.val);
196 assert (bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
198 long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager._test_only_get_ptr(), 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);
204 while (!list.isEmpty()) { list.poll().join(); }
206 long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager._test_only_get_ptr(), peer2.node_id, 10000, 1000, 42, 0);
207 assert bindings.LDKCResult_NoneAPIErrorZ_result_ok(cc_res);
208 bindings.CResult_NoneAPIErrorZ_free(cc_res);
210 peer1.peer_manager.process_events();
211 while (!list.isEmpty()) { list.poll().join(); }
212 peer2.peer_manager.process_events();
213 while (!list.isEmpty()) { list.poll().join(); }
215 long events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events._test_only_get_ptr());
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.get_u8_slice_bytes(((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);
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 peer1.chan_manager.funding_transaction_generated(chan_id, new OutPoint(funding.getTxId().getReversedBytes(), (short) 0));
234 peer1.peer_manager.process_events();
235 while (!list.isEmpty()) { list.poll().join(); }
236 peer2.peer_manager.process_events();
237 while (!list.isEmpty()) { list.poll().join(); }
239 events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events._test_only_get_ptr());
240 events_arr_info = bindings.LDKCVecTempl_Event_arr_info(events);
241 assert events_arr_info.datalen == 1;
242 event = bindings.LDKEvent_ref_from_ptr(events_arr_info.dataptr);
243 assert event instanceof bindings.LDKEvent.FundingBroadcastSafe;
244 bindings.CVec_EventZ_free(events);
246 Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
247 peer1.connect_block(b, funding, 1);
248 peer2.connect_block(b, funding, 1);
250 for (int height = 2; height < 10; height++) {
251 b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
252 peer1.connect_block(b, null, height);
253 peer2.connect_block(b, null, height);
256 peer1.peer_manager.process_events();
257 peer2.peer_manager.process_events();
258 while (!list.isEmpty()) { list.poll().join(); }
260 long peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager._test_only_get_ptr());
261 long peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager._test_only_get_ptr());
262 assert bindings.vec_slice_len(peer1_chans) == 1;
263 assert bindings.vec_slice_len(peer2_chans) == 1;
264 long[] peer_1_chan_info = bindings.LDKCVecTempl_ChannelDetails_arr_info(peer1_chans);
265 assert peer_1_chan_info.length == 1;
266 assert bindings.ChannelDetails_get_channel_value_satoshis(peer_1_chan_info[0]) == 10000;
267 assert bindings.ChannelDetails_get_is_live(peer_1_chan_info[0]);
268 assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer_1_chan_info[0]), funding.getTxId().getReversedBytes());
269 assert Arrays.equals(bindings.ChannelDetails_get_channel_id(bindings.LDKCVecTempl_ChannelDetails_arr_info(peer2_chans)[0]), funding.getTxId().getReversedBytes());
270 bindings.CVec_ChannelDetailsZ_free(peer2_chans);
272 byte[] payment_preimage = new byte[32];
273 for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
274 byte[] payment_hash = Sha256Hash.hash(payment_preimage);
275 long route = peer1.get_route(peer2.node_id, peer1_chans);
276 bindings.CVec_ChannelDetailsZ_free(peer1_chans);
277 assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(route);
278 long payment_res = bindings.ChannelManager_send_payment(peer1.chan_manager._test_only_get_ptr(), bindings.LDKCResult_RouteLightningErrorZ_get_ok(route), payment_hash, new byte[32]);
279 bindings.CResult_RouteLightningErrorZ_free(route);
280 assert bindings.LDKCResult_NonePaymentSendFailureZ_result_ok(payment_res);
281 bindings.CResult_NonePaymentSendFailureZ_free(payment_res);
283 peer1.peer_manager.process_events();
284 while (!list.isEmpty()) { list.poll().join(); }
285 peer2.peer_manager.process_events();
286 while (!list.isEmpty()) { list.poll().join(); }
287 peer1.peer_manager.process_events();
288 while (!list.isEmpty()) { list.poll().join(); }
290 long peer2_events = bindings.EventsProvider_get_and_clear_pending_events(peer2.chan_manager_events._test_only_get_ptr());
291 bindings.VecOrSliceDef event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
292 assert event_arr_info.datalen == 1;
293 bindings.LDKEvent forwardable = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
294 assert forwardable instanceof bindings.LDKEvent.PendingHTLCsForwardable;
295 bindings.CVec_EventZ_free(peer2_events);
296 bindings.ChannelManager_process_pending_htlc_forwards(peer2.chan_manager._test_only_get_ptr());
298 peer2_events = bindings.EventsProvider_get_and_clear_pending_events(peer2.chan_manager_events._test_only_get_ptr());
299 event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer2_events);
300 assert event_arr_info.datalen == 1;
301 bindings.LDKEvent payment_recvd = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
302 assert payment_recvd instanceof bindings.LDKEvent.PaymentReceived;
303 peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((bindings.LDKEvent.PaymentReceived) payment_recvd).amt);
304 bindings.CVec_EventZ_free(peer2_events);
306 peer2.peer_manager.process_events();
307 while (!list.isEmpty()) { list.poll().join(); }
308 peer1.peer_manager.process_events();
309 while (!list.isEmpty()) { list.poll().join(); }
311 long peer1_events = bindings.EventsProvider_get_and_clear_pending_events(peer1.chan_manager_events._test_only_get_ptr());
312 event_arr_info = bindings.LDKCVecTempl_Event_arr_info(peer1_events);
313 assert event_arr_info.datalen == 1;
314 bindings.LDKEvent sent = bindings.LDKEvent_ref_from_ptr(event_arr_info.dataptr);
315 assert sent instanceof bindings.LDKEvent.PaymentSent;
316 assert Arrays.equals(((bindings.LDKEvent.PaymentSent) sent).payment_preimage, payment_preimage);
317 bindings.CVec_EventZ_free(peer1_events);
321 bindings.SocketDescriptor_free(descriptor2);
322 bindings.SocketDescriptor_free(descriptor1.val);
326 public void test_message_handler() throws InterruptedException {
327 do_test_message_handler();
330 System.runFinalization();
332 for (WeakReference o : must_free_objs)
333 assert o.get() == null;