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 {
21 final FeeEstimator fee_estimator;
22 final BroadcasterInterface tx_broadcaster;
23 final KeysManager keys;
24 final KeysInterface keys_interface;
25 final ChannelManager chan_manager;
26 final EventsProvider chan_manager_events;
27 final NetGraphMsgHandler router;
28 final PeerManager peer_manager;
29 final HashMap<String, ChannelMonitor> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
31 final LinkedList<org.ldk.structs.Transaction> broadcast_set = new LinkedList<>();
34 logger = new Logger((String arg) -> System.out.println(seed + ": " + arg));
35 fee_estimator = new FeeEstimator((confirmation_target -> 253));
36 tx_broadcaster = new BroadcasterInterface(tx -> {
37 broadcast_set.add(tx);
39 this.monitors = new HashMap<>();
40 Watch chain_monitor = new Watch(new Watch.WatchInterface() {
41 public Result_NoneChannelMonitorUpdateErrZ watch_channel(OutPoint funding_txo, ChannelMonitor monitor) {
42 synchronized (monitors) {
43 assert monitors.put(Arrays.toString(funding_txo.get_txid()), monitor) == null;
45 return new Result_NoneChannelMonitorUpdateErrZ.Result_NoneChannelMonitorUpdateErrZ_OK();
48 public Result_NoneChannelMonitorUpdateErrZ update_channel(OutPoint funding_txo, ChannelMonitorUpdate update) {
49 synchronized (monitors) {
50 String txid = Arrays.toString(funding_txo.get_txid());
51 assert monitors.containsKey(txid);
52 Result_NoneMonitorUpdateErrorZ update_res = monitors.get(txid).update_monitor(update, tx_broadcaster, logger);
53 assert update_res instanceof Result_NoneMonitorUpdateErrorZ.Result_NoneMonitorUpdateErrorZ_OK;
55 return new Result_NoneChannelMonitorUpdateErrZ.Result_NoneChannelMonitorUpdateErrZ_OK();
59 public MonitorEvent[] release_pending_monitor_events() {
60 synchronized (monitors) {
61 assert monitors.size() <= 1;
62 for (ChannelMonitor mon : monitors.values()) {
63 return mon.get_and_clear_pending_monitor_events();
66 return new MonitorEvent[0];
70 byte[] key_seed = new byte[32];
71 for (byte i = 0; i < 32; i++) {
72 key_seed[i] = (byte) (i ^ seed);
74 this.keys = KeysManager.constructor_new(key_seed, LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000) & 0xffffffff);
75 this.keys_interface = keys.as_KeysInterface();
76 this.chan_manager = ChannelManager.constructor_new(LDKNetwork.LDKNetwork_Bitcoin, new FeeEstimator(confirmation_target -> 0), chain_monitor, tx_broadcaster, logger, keys.as_KeysInterface(), UserConfig.constructor_default(), 1);
77 this.node_id = chan_manager.get_our_node_id();
78 this.chan_manager_events = chan_manager.as_EventsProvider();
79 this.router = NetGraphMsgHandler.constructor_new(null, logger);
81 byte[] random_data = new byte[32];
82 for (byte i = 0; i < 32; i++) {
83 random_data[i] = (byte) ((i ^ seed) ^ 0xf0);
85 this.peer_manager = PeerManager.constructor_new(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
89 TwoTuple<byte[], TxOut[]>[] connect_block(Block b, int height) {
90 byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
91 TwoTuple<Long, org.ldk.structs.Transaction>[] txn;
92 if (b.hasTransactions()) {
93 assert b.getTransactions().size() == 1;
94 TwoTuple<Long, org.ldk.structs.Transaction> txp = new TwoTuple<>((long) 1, new org.ldk.structs.Transaction(b.getTransactions().get(0).bitcoinSerialize()));
95 txn = new TwoTuple[]{txp};
97 txn = new TwoTuple[0];
98 chan_manager.block_connected(header, txn, height);
99 synchronized (monitors) {
100 assert monitors.size() == 1;
101 for (ChannelMonitor mon : monitors.values()) {
102 return mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
108 Route get_route(byte[] dest_node, ChannelDetails[] our_chans) {
109 try (LockedNetworkGraph netgraph = this.router.read_locked_graph()) {
110 NetworkGraph graph = netgraph.graph();
111 long res = bindings.get_route(this.node_id, graph._test_only_get_ptr(), dest_node, new long[]{our_chans[0]._test_only_get_ptr()},
112 new long[0], 1000, 42, this.logger._test_only_get_ptr());
113 assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(res);
114 byte[] serialized_route = bindings.Route_write(bindings.LDKCResult_RouteLightningErrorZ_get_ok(res));
115 must_free_objs.add(new WeakReference<>(serialized_route));
116 Route copy = Route.constructor_read(serialized_route);
117 bindings.CResult_RouteLightningErrorZ_free(res);
123 class LongHolder { long val; }
125 java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
127 void do_read_event(ConcurrentLinkedQueue<Thread> list, PeerManager pm, long descriptor, byte[] data) {
128 Thread thread = new Thread(() -> {
129 long res = bindings.PeerManager_read_event(pm._test_only_get_ptr(), descriptor, data);
130 assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
131 //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
132 bindings.CResult_boolPeerHandleErrorZ_free(res);
136 must_free_objs.add(new WeakReference<>(data));
139 boolean gc_ran = false;
143 protected void finalize() throws Throwable {
149 void do_test_message_handler(boolean nice_close) throws InterruptedException {
150 GcCheck obj = new GcCheck();
151 Peer peer1 = new Peer((byte) 1);
152 Peer peer2 = new Peer((byte) 2);
154 ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
155 LongHolder descriptor1 = new LongHolder();
156 LongHolder descriptor1ref = descriptor1;
157 bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
159 public long send_data(byte[] data, boolean resume_read) {
160 do_read_event(list, peer1.peer_manager, descriptor1ref.val, data);
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() == 2; }
166 @Override public long hash() { return 2; }
168 long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
170 bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
172 public long send_data(byte[] data, boolean resume_read) {
173 do_read_event(list, peer2.peer_manager, descriptor2, data);
177 @Override public void disconnect_socket() { assert false; }
178 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
179 @Override public long hash() { return 1; }
181 descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
183 long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager._test_only_get_ptr(), peer2.node_id, descriptor1.val);
184 assert (bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
186 long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager._test_only_get_ptr(), descriptor2);
187 assert (bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
188 bindings.CResult_NonePeerHandleErrorZ_free(con_res);
189 do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_ok(init_vec));
190 bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
192 while (!list.isEmpty()) { list.poll().join(); }
194 Result_NoneAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 10000, 1000, 42, null);
195 assert cc_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
197 peer1.peer_manager.process_events();
198 while (!list.isEmpty()) { list.poll().join(); }
199 peer2.peer_manager.process_events();
200 while (!list.isEmpty()) { list.poll().join(); }
202 Event[] events = peer1.chan_manager_events.get_and_clear_pending_events();
203 assert events.length == 1;
204 assert events[0] instanceof Event.FundingGenerationReady;
205 assert ((Event.FundingGenerationReady) events[0]).channel_value_satoshis == 10000;
206 assert ((Event.FundingGenerationReady) events[0]).user_channel_id == 42;
207 byte[] funding_spk = ((Event.FundingGenerationReady) events[0]).output_script;
208 assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
209 byte[] chan_id = ((Event.FundingGenerationReady) events[0]).temporary_channel_id;
211 NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
213 Transaction funding = new Transaction(bitcoinj_net);
214 funding.addInput(new TransactionInput(bitcoinj_net, funding, new byte[0]));
215 funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
216 funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
217 funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
218 peer1.chan_manager.funding_transaction_generated(chan_id, OutPoint.constructor_new(funding.getTxId().getReversedBytes(), (short) 0));
220 peer1.peer_manager.process_events();
221 while (!list.isEmpty()) { list.poll().join(); }
222 peer2.peer_manager.process_events();
223 while (!list.isEmpty()) { list.poll().join(); }
225 events = peer1.chan_manager_events.get_and_clear_pending_events();
226 assert events.length == 1;
227 assert events[0] instanceof Event.FundingBroadcastSafe;
228 assert ((Event.FundingBroadcastSafe) events[0]).user_channel_id == 42;
230 Block b = new Block(bitcoinj_net, 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
231 assert peer1.connect_block(b, 1).length == 0;
232 assert peer2.connect_block(b, 1).length == 0;
234 for (int height = 2; height < 10; height++) {
235 b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
236 assert peer1.connect_block(b, height).length == 0;
237 assert peer2.connect_block(b, height).length == 0;
240 peer1.peer_manager.process_events();
241 peer2.peer_manager.process_events();
242 while (!list.isEmpty()) { list.poll().join(); }
244 peer1.chan_manager.list_channels();
245 ChannelDetails[] peer1_chans = peer1.chan_manager.list_channels();
246 ChannelDetails[] peer2_chans = peer2.chan_manager.list_channels();
247 assert peer1_chans.length == 1;
248 assert peer2_chans.length == 1;
249 assert peer1_chans[0].get_channel_value_satoshis() == 10000;
250 assert peer1_chans[0].get_is_live();
251 assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
252 assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
254 byte[] payment_preimage = new byte[32];
255 for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
256 byte[] payment_hash = Sha256Hash.hash(payment_preimage);
257 Route route = peer1.get_route(peer2.node_id, peer1_chans);
258 Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment(route, payment_hash, new byte[32]);
259 assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
261 peer1.peer_manager.process_events();
262 while (!list.isEmpty()) { list.poll().join(); }
263 peer2.peer_manager.process_events();
264 while (!list.isEmpty()) { list.poll().join(); }
265 peer1.peer_manager.process_events();
266 while (!list.isEmpty()) { list.poll().join(); }
268 events = peer2.chan_manager_events.get_and_clear_pending_events();
269 assert events.length == 1;
270 assert events[0] instanceof Event.PendingHTLCsForwardable;
271 peer2.chan_manager.process_pending_htlc_forwards();
273 events = peer2.chan_manager_events.get_and_clear_pending_events();
274 assert events.length == 1;
275 assert events[0] instanceof Event.PaymentReceived;
276 peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((Event.PaymentReceived) events[0]).amt);
278 peer2.peer_manager.process_events();
279 while (!list.isEmpty()) { list.poll().join(); }
280 peer1.peer_manager.process_events();
281 while (!list.isEmpty()) { list.poll().join(); }
282 peer2.peer_manager.process_events();
283 while (!list.isEmpty()) { list.poll().join(); }
285 events = peer1.chan_manager_events.get_and_clear_pending_events();
286 assert events.length == 1;
287 assert events[0] instanceof Event.PaymentSent;
288 assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
291 Result_NoneAPIErrorZ close_res = peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id());
292 assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
294 peer1.peer_manager.process_events();
295 while (!list.isEmpty()) { list.poll().join(); }
296 peer2.peer_manager.process_events();
297 while (!list.isEmpty()) { list.poll().join(); }
298 peer1.peer_manager.process_events();
299 while (!list.isEmpty()) { list.poll().join(); }
300 peer2.peer_manager.process_events();
301 while (!list.isEmpty()) { list.poll().join(); }
303 assert peer1.broadcast_set.size() == 1;
304 assert peer2.broadcast_set.size() == 1;
306 peer1.chan_manager.force_close_all_channels();
308 peer1.peer_manager.process_events();
309 while (!list.isEmpty()) { list.poll().join(); }
310 peer2.peer_manager.process_events();
311 while (!list.isEmpty()) { list.poll().join(); }
312 peer1.peer_manager.process_events();
313 while (!list.isEmpty()) { list.poll().join(); }
314 peer2.peer_manager.process_events();
315 while (!list.isEmpty()) { list.poll().join(); }
317 assert peer1.broadcast_set.size() == 1;
318 assert peer2.broadcast_set.size() == 0;
320 Transaction tx = new Transaction(bitcoinj_net, peer1.broadcast_set.getFirst().get_contents());
321 b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0,
322 Arrays.asList(new Transaction[]{tx}));
323 TwoTuple<byte[], TxOut[]>[] watch_outputs = peer2.connect_block(b, 1);
324 assert watch_outputs.length == 1;
325 assert Arrays.equals(watch_outputs[0].a, tx.getTxId().getReversedBytes());
326 assert watch_outputs[0].b.length == 1;
329 bindings.SocketDescriptor_free(descriptor2);
330 bindings.SocketDescriptor_free(descriptor1.val);
334 public class HumanObjectPeerTest {
336 public void test_message_handler_force_close() throws InterruptedException {
337 HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance();
338 instance.do_test_message_handler(false);
339 while (!instance.gc_ran) {
341 System.runFinalization();
343 for (WeakReference<Object> o : instance.must_free_objs)
344 assert o.get() == null;
347 public void test_message_handler_nice_close() throws InterruptedException {
348 HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance();
349 instance.do_test_message_handler(true);
350 while (!instance.gc_ran) {
352 System.runFinalization();
354 for (WeakReference<Object> o : instance.must_free_objs)
355 assert o.get() == null;