3 import org.bitcoinj.core.*;
4 import org.bitcoinj.core.Transaction;
5 import org.bitcoinj.script.Script;
6 import org.junit.jupiter.api.Test;
7 import org.ldk.enums.LDKNetwork;
8 import org.ldk.impl.bindings;
9 import org.ldk.structs.*;
10 import org.ldk.util.TwoTuple;
12 import java.lang.ref.WeakReference;
13 import java.util.Arrays;
14 import java.util.HashMap;
15 import java.util.LinkedList;
16 import java.util.concurrent.ConcurrentLinkedQueue;
18 class HumanObjectPeerTestInstance {
20 KeysInterface manual_keysif(KeysInterface underlying_if) {
21 return KeysInterface.new_impl(new KeysInterface.KeysInterfaceInterface() {
23 public byte[] get_node_secret() {
24 return underlying_if.get_node_secret();
28 public byte[] get_destination_script() {
29 return underlying_if.get_destination_script();
33 public byte[] get_shutdown_pubkey() {
34 return underlying_if.get_shutdown_pubkey();
38 public ChannelKeys get_channel_keys(boolean inbound, long channel_value_satoshis) {
39 ChannelKeys underlying_ck = underlying_if.get_channel_keys(inbound, channel_value_satoshis);
40 ChannelKeys.ChannelKeysInterface cki = new ChannelKeys.ChannelKeysInterface() {
42 public byte[] get_per_commitment_point(long idx) {
43 return underlying_ck.get_per_commitment_point(idx);
47 public byte[] release_commitment_secret(long idx) {
48 return underlying_ck.release_commitment_secret(idx);
52 public TwoTuple<Long, Long> key_derivation_params() {
53 return new TwoTuple<Long, Long>((long)0, (long)1);
57 public Result_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_counterparty_commitment(int feerate_per_kw, byte[] commitment_tx, PreCalculatedTxCreationKeys keys, HTLCOutputInCommitment[] htlcs) {
58 return underlying_ck.sign_counterparty_commitment(feerate_per_kw, commitment_tx, keys, htlcs);
62 public Result_SignatureNoneZ sign_holder_commitment(HolderCommitmentTransaction holder_commitment_tx) {
63 return underlying_ck.sign_holder_commitment(holder_commitment_tx);
67 public Result_CVec_SignatureZNoneZ sign_holder_commitment_htlc_transactions(HolderCommitmentTransaction holder_commitment_tx) {
68 return underlying_ck.sign_holder_commitment_htlc_transactions(holder_commitment_tx);
72 public Result_SignatureNoneZ sign_justice_transaction(byte[] justice_tx, long input, long amount, byte[] per_commitment_key, HTLCOutputInCommitment htlc) {
73 return underlying_ck.sign_justice_transaction(justice_tx, input, amount, per_commitment_key, htlc);
77 public Result_SignatureNoneZ sign_counterparty_htlc_transaction(byte[] htlc_tx, long input, long amount, byte[] per_commitment_point, HTLCOutputInCommitment htlc) {
78 return underlying_ck.sign_counterparty_htlc_transaction(htlc_tx, input, amount, per_commitment_point, htlc);
82 public Result_SignatureNoneZ sign_closing_transaction(byte[] closing_tx) {
83 return underlying_ck.sign_closing_transaction(closing_tx);
87 public Result_SignatureNoneZ sign_channel_announcement(UnsignedChannelAnnouncement msg) {
88 return underlying_ck.sign_channel_announcement(msg);
92 public void on_accept(ChannelPublicKeys channel_points, short counterparty_selected_contest_delay, short holder_selected_contest_delay) {
93 underlying_ck.on_accept(channel_points, counterparty_selected_contest_delay, holder_selected_contest_delay);
96 ChannelKeys resp = ChannelKeys.new_impl(cki, underlying_ck.get_pubkeys());
97 must_free_objs.add(new WeakReference<>(cki));
98 must_free_objs.add(new WeakReference<>(resp));
99 must_free_objs.add(new WeakReference<>(underlying_ck));
104 public byte[] get_secure_random_bytes() {
105 return underlying_if.get_secure_random_bytes();
111 final FeeEstimator fee_estimator;
112 final BroadcasterInterface tx_broadcaster;
113 final KeysInterface keys_interface;
114 final ChannelManager chan_manager;
115 final EventsProvider chan_manager_events;
116 final NetGraphMsgHandler router;
117 final PeerManager peer_manager;
118 final HashMap<String, ChannelMonitor> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
120 final LinkedList<byte[]> broadcast_set = new LinkedList<>();
122 Peer(byte seed, boolean use_km_wrapper) {
123 logger = Logger.new_impl((String arg) -> System.out.println(seed + ": " + arg));
124 fee_estimator = FeeEstimator.new_impl((confirmation_target -> 253));
125 tx_broadcaster = BroadcasterInterface.new_impl(tx -> {
126 broadcast_set.add(tx);
128 this.monitors = new HashMap<>();
129 Watch chain_monitor = Watch.new_impl(new Watch.WatchInterface() {
130 public Result_NoneChannelMonitorUpdateErrZ watch_channel(OutPoint funding_txo, ChannelMonitor monitor) {
131 synchronized (monitors) {
132 assert monitors.put(Arrays.toString(funding_txo.get_txid()), monitor) == null;
134 return new Result_NoneChannelMonitorUpdateErrZ.Result_NoneChannelMonitorUpdateErrZ_OK();
137 public Result_NoneChannelMonitorUpdateErrZ update_channel(OutPoint funding_txo, ChannelMonitorUpdate update) {
138 synchronized (monitors) {
139 String txid = Arrays.toString(funding_txo.get_txid());
140 assert monitors.containsKey(txid);
141 Result_NoneMonitorUpdateErrorZ update_res = monitors.get(txid).update_monitor(update, tx_broadcaster, logger);
142 assert update_res instanceof Result_NoneMonitorUpdateErrorZ.Result_NoneMonitorUpdateErrorZ_OK;
144 return new Result_NoneChannelMonitorUpdateErrZ.Result_NoneChannelMonitorUpdateErrZ_OK();
148 public MonitorEvent[] release_pending_monitor_events() {
149 synchronized (monitors) {
150 assert monitors.size() <= 1;
151 for (ChannelMonitor mon : monitors.values()) {
152 return mon.get_and_clear_pending_monitor_events();
155 return new MonitorEvent[0];
159 byte[] key_seed = new byte[32];
160 for (byte i = 0; i < 32; i++) {
161 key_seed[i] = (byte) (i ^ seed);
163 if (use_km_wrapper) {
164 KeysManager underlying = KeysManager.constructor_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
165 this.keys_interface = manual_keysif(underlying.as_KeysInterface());
167 KeysManager keys = KeysManager.constructor_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
168 this.keys_interface = keys.as_KeysInterface();
170 this.chan_manager = ChannelManager.constructor_new(LDKNetwork.LDKNetwork_Bitcoin, FeeEstimator.new_impl(confirmation_target -> 0), chain_monitor, tx_broadcaster, logger, this.keys_interface, UserConfig.constructor_default(), 1);
171 this.node_id = chan_manager.get_our_node_id();
172 this.chan_manager_events = chan_manager.as_EventsProvider();
173 this.router = NetGraphMsgHandler.constructor_new(null, logger);
175 byte[] random_data = new byte[32];
176 for (byte i = 0; i < 32; i++) {
177 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
179 this.peer_manager = PeerManager.constructor_new(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
183 TwoTuple<byte[], TxOut[]>[] connect_block(Block b, int height) {
184 byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
185 TwoTuple<Long, byte[]>[] txn;
186 if (b.hasTransactions()) {
187 assert b.getTransactions().size() == 1;
188 TwoTuple<Long, byte[]> txp = new TwoTuple<>((long) 1, b.getTransactions().get(0).bitcoinSerialize());
189 txn = new TwoTuple[]{txp};
191 txn = new TwoTuple[0];
192 chan_manager.block_connected(header, txn, height);
193 synchronized (monitors) {
194 assert monitors.size() == 1;
195 for (ChannelMonitor mon : monitors.values()) {
196 return mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
202 Route get_route(byte[] dest_node, ChannelDetails[] our_chans) {
203 try (LockedNetworkGraph netgraph = this.router.read_locked_graph()) {
204 NetworkGraph graph = netgraph.graph();
205 long res = bindings.get_route(this.node_id, graph._test_only_get_ptr(), dest_node, new long[]{our_chans[0]._test_only_get_ptr()},
206 new long[0], 1000, 42, this.logger._test_only_get_ptr());
207 assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(res);
208 byte[] serialized_route = bindings.Route_write(bindings.LDKCResult_RouteLightningErrorZ_get_ok(res));
209 must_free_objs.add(new WeakReference<>(serialized_route));
210 Route copy = Route.constructor_read(serialized_route);
211 bindings.CResult_RouteLightningErrorZ_free(res);
217 class LongHolder { long val; }
219 java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
221 void do_read_event(ConcurrentLinkedQueue<Thread> list, PeerManager pm, long descriptor, byte[] data) {
222 Thread thread = new Thread(() -> {
223 long res = bindings.PeerManager_read_event(pm._test_only_get_ptr(), descriptor, data);
224 assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
225 //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
226 bindings.CResult_boolPeerHandleErrorZ_free(res);
230 must_free_objs.add(new WeakReference<>(data));
233 boolean gc_ran = false;
237 protected void finalize() throws Throwable {
243 void do_test_message_handler(boolean nice_close, boolean use_km_wrapper) throws InterruptedException {
244 GcCheck obj = new GcCheck();
245 Peer peer1 = new Peer((byte) 1, use_km_wrapper);
246 Peer peer2 = new Peer((byte) 2, use_km_wrapper);
248 ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
249 LongHolder descriptor1 = new LongHolder();
250 LongHolder descriptor1ref = descriptor1;
251 bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
253 public long send_data(byte[] data, boolean resume_read) {
254 do_read_event(list, peer1.peer_manager, descriptor1ref.val, data);
258 @Override public void disconnect_socket() { assert false; }
259 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
260 @Override public long hash() { return 2; }
262 long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
264 bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
266 public long send_data(byte[] data, boolean resume_read) {
267 do_read_event(list, peer2.peer_manager, descriptor2, data);
271 @Override public void disconnect_socket() { assert false; }
272 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
273 @Override public long hash() { return 1; }
275 descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
277 long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager._test_only_get_ptr(), peer2.node_id, descriptor1.val);
278 assert (bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
280 long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager._test_only_get_ptr(), descriptor2);
281 assert (bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
282 bindings.CResult_NonePeerHandleErrorZ_free(con_res);
283 do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_ok(init_vec));
284 bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
286 while (!list.isEmpty()) { list.poll().join(); }
288 Result_NoneAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 10000, 1000, 42, null);
289 assert cc_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
291 peer1.peer_manager.process_events();
292 while (!list.isEmpty()) { list.poll().join(); }
293 peer2.peer_manager.process_events();
294 while (!list.isEmpty()) { list.poll().join(); }
296 Event[] events = peer1.chan_manager_events.get_and_clear_pending_events();
297 assert events.length == 1;
298 assert events[0] instanceof Event.FundingGenerationReady;
299 assert ((Event.FundingGenerationReady) events[0]).channel_value_satoshis == 10000;
300 assert ((Event.FundingGenerationReady) events[0]).user_channel_id == 42;
301 byte[] funding_spk = ((Event.FundingGenerationReady) events[0]).output_script;
302 assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
303 byte[] chan_id = ((Event.FundingGenerationReady) events[0]).temporary_channel_id;
305 NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
307 Transaction funding = new Transaction(bitcoinj_net);
308 funding.addInput(new TransactionInput(bitcoinj_net, funding, new byte[0]));
309 funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
310 funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
311 funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
312 peer1.chan_manager.funding_transaction_generated(chan_id, OutPoint.constructor_new(funding.getTxId().getReversedBytes(), (short) 0));
314 peer1.peer_manager.process_events();
315 while (!list.isEmpty()) { list.poll().join(); }
316 peer2.peer_manager.process_events();
317 while (!list.isEmpty()) { list.poll().join(); }
319 events = peer1.chan_manager_events.get_and_clear_pending_events();
320 assert events.length == 1;
321 assert events[0] instanceof Event.FundingBroadcastSafe;
322 assert ((Event.FundingBroadcastSafe) events[0]).user_channel_id == 42;
324 Block b = new Block(bitcoinj_net, 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
325 assert peer1.connect_block(b, 1).length == 0;
326 assert peer2.connect_block(b, 1).length == 0;
328 for (int height = 2; height < 10; height++) {
329 b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
330 assert peer1.connect_block(b, height).length == 0;
331 assert peer2.connect_block(b, height).length == 0;
334 peer1.peer_manager.process_events();
335 peer2.peer_manager.process_events();
336 while (!list.isEmpty()) { list.poll().join(); }
338 peer1.chan_manager.list_channels();
339 ChannelDetails[] peer1_chans = peer1.chan_manager.list_channels();
340 ChannelDetails[] peer2_chans = peer2.chan_manager.list_channels();
341 assert peer1_chans.length == 1;
342 assert peer2_chans.length == 1;
343 assert peer1_chans[0].get_channel_value_satoshis() == 10000;
344 assert peer1_chans[0].get_is_live();
345 assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
346 assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
348 byte[] payment_preimage = new byte[32];
349 for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
350 byte[] payment_hash = Sha256Hash.hash(payment_preimage);
351 Route route = peer1.get_route(peer2.node_id, peer1_chans);
352 Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment(route, payment_hash, new byte[32]);
353 assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
355 peer1.peer_manager.process_events();
356 while (!list.isEmpty()) { list.poll().join(); }
357 peer2.peer_manager.process_events();
358 while (!list.isEmpty()) { list.poll().join(); }
359 peer1.peer_manager.process_events();
360 while (!list.isEmpty()) { list.poll().join(); }
362 events = peer2.chan_manager_events.get_and_clear_pending_events();
363 assert events.length == 1;
364 assert events[0] instanceof Event.PendingHTLCsForwardable;
365 peer2.chan_manager.process_pending_htlc_forwards();
367 events = peer2.chan_manager_events.get_and_clear_pending_events();
368 assert events.length == 1;
369 assert events[0] instanceof Event.PaymentReceived;
370 peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((Event.PaymentReceived) events[0]).amt);
372 peer2.peer_manager.process_events();
373 while (!list.isEmpty()) { list.poll().join(); }
374 peer1.peer_manager.process_events();
375 while (!list.isEmpty()) { list.poll().join(); }
376 peer2.peer_manager.process_events();
377 while (!list.isEmpty()) { list.poll().join(); }
379 events = peer1.chan_manager_events.get_and_clear_pending_events();
380 assert events.length == 1;
381 assert events[0] instanceof Event.PaymentSent;
382 assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
385 Result_NoneAPIErrorZ close_res = peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id());
386 assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
388 peer1.peer_manager.process_events();
389 while (!list.isEmpty()) { list.poll().join(); }
390 peer2.peer_manager.process_events();
391 while (!list.isEmpty()) { list.poll().join(); }
392 peer1.peer_manager.process_events();
393 while (!list.isEmpty()) { list.poll().join(); }
394 peer2.peer_manager.process_events();
395 while (!list.isEmpty()) { list.poll().join(); }
397 assert peer1.broadcast_set.size() == 1;
398 assert peer2.broadcast_set.size() == 1;
400 peer1.chan_manager.force_close_all_channels();
402 peer1.peer_manager.process_events();
403 while (!list.isEmpty()) { list.poll().join(); }
404 peer2.peer_manager.process_events();
405 while (!list.isEmpty()) { list.poll().join(); }
406 peer1.peer_manager.process_events();
407 while (!list.isEmpty()) { list.poll().join(); }
408 peer2.peer_manager.process_events();
409 while (!list.isEmpty()) { list.poll().join(); }
411 assert peer1.broadcast_set.size() == 1;
412 assert peer2.broadcast_set.size() == 0;
414 Transaction tx = new Transaction(bitcoinj_net, peer1.broadcast_set.getFirst());
415 b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0,
416 Arrays.asList(new Transaction[]{tx}));
417 TwoTuple<byte[], TxOut[]>[] watch_outputs = peer2.connect_block(b, 1);
418 assert watch_outputs.length == 1;
419 assert Arrays.equals(watch_outputs[0].a, tx.getTxId().getReversedBytes());
420 assert watch_outputs[0].b.length == 1;
423 bindings.SocketDescriptor_free(descriptor2);
424 bindings.SocketDescriptor_free(descriptor1.val);
428 public class HumanObjectPeerTest {
429 void do_test(boolean nice_close, boolean use_km_wrapper) throws InterruptedException {
430 HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance();
431 instance.do_test_message_handler(nice_close, use_km_wrapper);
432 while (!instance.gc_ran) {
434 System.runFinalization();
436 for (WeakReference<Object> o : instance.must_free_objs)
437 assert o.get() == null;
440 public void test_message_handler_force_close() throws InterruptedException {
441 do_test(false, false);
444 public void test_message_handler_nice_close() throws InterruptedException {
445 do_test(true, false);
448 public void test_message_handler_nice_close_wrapper() throws InterruptedException {
452 public void test_message_handler_force_close_wrapper() throws InterruptedException {
453 do_test(false, true);