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 public class HumanObjectPeerTest {
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 void connect_block(Block b, Transaction t, int height) {
90 byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
91 TwoTuple<Long, org.ldk.structs.Transaction>[] txn;
93 TwoTuple<Long, org.ldk.structs.Transaction> txp = new TwoTuple<>((long) 1, new org.ldk.structs.Transaction(t.bitcoinSerialize()));
94 txn = new TwoTuple[]{txp};
96 txn = new TwoTuple[0];
97 chan_manager.block_connected(header, txn, height);
98 synchronized (monitors) {
99 for (ChannelMonitor mon : monitors.values()) {
100 TwoTuple<byte[], TxOut[]>[] ret = mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
101 assert ret.length == 0;
106 Route get_route(byte[] dest_node, ChannelDetails[] our_chans) {
107 try (LockedNetworkGraph netgraph = this.router.read_locked_graph()) {
108 NetworkGraph graph = netgraph.graph();
109 long res = bindings.get_route(this.node_id, graph._test_only_get_ptr(), dest_node, new long[] {our_chans[0]._test_only_get_ptr()},
110 new long[0], 1000, 42, this.logger._test_only_get_ptr());
111 assert bindings.LDKCResult_RouteLightningErrorZ_result_ok(res);
112 byte[] serialized_route = bindings.Route_write(bindings.LDKCResult_RouteLightningErrorZ_get_ok(res));
113 must_free_objs.add(new WeakReference<>(serialized_route));
114 Route copy = Route.constructor_read(serialized_route);
115 bindings.CResult_RouteLightningErrorZ_free(res);
121 class LongHolder { long val; }
123 java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
124 void do_read_event(ConcurrentLinkedQueue<Thread> list, PeerManager pm, long descriptor, byte[] data) {
125 Thread thread = new Thread(() -> {
126 long res = bindings.PeerManager_read_event(pm._test_only_get_ptr(), descriptor, data);
127 assert bindings.LDKCResult_boolPeerHandleErrorZ_result_ok(res);
128 //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
129 bindings.CResult_boolPeerHandleErrorZ_free(res);
133 must_free_objs.add(new WeakReference<>(data));
136 boolean gc_ran = false;
139 protected void finalize() throws Throwable {
144 void do_test_message_handler() throws InterruptedException {
145 GcCheck obj = new GcCheck();
146 Peer peer1 = new Peer((byte) 1);
147 Peer peer2 = new Peer((byte) 2);
149 ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
150 LongHolder descriptor1 = new LongHolder();
151 LongHolder descriptor1ref = descriptor1;
152 bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
154 public long send_data(byte[] data, boolean resume_read) {
155 do_read_event(list, peer1.peer_manager, descriptor1ref.val, data);
159 @Override public void disconnect_socket() { assert false; }
160 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 2; }
161 @Override public long hash() { return 2; }
163 long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
165 bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
167 public long send_data(byte[] data, boolean resume_read) {
168 do_read_event(list, peer2.peer_manager, descriptor2, data);
172 @Override public void disconnect_socket() { assert false; }
173 @Override public boolean eq(long other_arg) { return bindings.LDKSocketDescriptor_get_obj_from_jcalls(other_arg).hash() == 1; }
174 @Override public long hash() { return 1; }
176 descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
178 long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager._test_only_get_ptr(), peer2.node_id, descriptor1.val);
179 assert (bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_result_ok(init_vec));
181 long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager._test_only_get_ptr(), descriptor2);
182 assert (bindings.LDKCResult_NonePeerHandleErrorZ_result_ok(con_res));
183 bindings.CResult_NonePeerHandleErrorZ_free(con_res);
184 do_read_event(list, peer2.peer_manager, descriptor2, bindings.LDKCResult_CVec_u8ZPeerHandleErrorZ_get_ok(init_vec));
185 bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
187 while (!list.isEmpty()) { list.poll().join(); }
189 Result_NoneAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 10000, 1000, 42, null);
190 assert cc_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
192 peer1.peer_manager.process_events();
193 while (!list.isEmpty()) { list.poll().join(); }
194 peer2.peer_manager.process_events();
195 while (!list.isEmpty()) { list.poll().join(); }
197 Event[] events = peer1.chan_manager_events.get_and_clear_pending_events();
198 assert events.length == 1;
199 assert events[0] instanceof Event.FundingGenerationReady;
200 assert ((Event.FundingGenerationReady)events[0]).channel_value_satoshis == 10000;
201 assert ((Event.FundingGenerationReady)events[0]).user_channel_id == 42;
202 byte[] funding_spk = ((Event.FundingGenerationReady)events[0]).output_script;
203 assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
204 byte[] chan_id = ((Event.FundingGenerationReady)events[0]).temporary_channel_id;
206 Transaction funding = new Transaction(NetworkParameters.fromID(NetworkParameters.ID_MAINNET));
207 funding.addInput(new TransactionInput(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), funding, new byte[0]));
208 funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
209 funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
210 funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
211 peer1.chan_manager.funding_transaction_generated(chan_id, OutPoint.constructor_new(funding.getTxId().getReversedBytes(), (short) 0));
213 peer1.peer_manager.process_events();
214 while (!list.isEmpty()) { list.poll().join(); }
215 peer2.peer_manager.process_events();
216 while (!list.isEmpty()) { list.poll().join(); }
218 events = peer1.chan_manager_events.get_and_clear_pending_events();
219 assert events.length == 1;
220 assert events[0] instanceof Event.FundingBroadcastSafe;
221 assert ((Event.FundingBroadcastSafe)events[0]).user_channel_id == 42;
223 Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
224 peer1.connect_block(b, funding, 1);
225 peer2.connect_block(b, funding, 1);
227 for (int height = 2; height < 10; height++) {
228 b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
229 peer1.connect_block(b, null, height);
230 peer2.connect_block(b, null, height);
233 peer1.peer_manager.process_events();
234 peer2.peer_manager.process_events();
235 while (!list.isEmpty()) { list.poll().join(); }
237 peer1.chan_manager.list_channels();
238 ChannelDetails[] peer1_chans = peer1.chan_manager.list_channels();
239 ChannelDetails[] peer2_chans = peer2.chan_manager.list_channels();
240 assert peer1_chans.length == 1;
241 assert peer2_chans.length == 1;
242 assert peer1_chans[0].get_channel_value_satoshis() == 10000;
243 assert peer1_chans[0].get_is_live();
244 assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
245 assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
247 byte[] payment_preimage = new byte[32];
248 for (int i = 0; i < 32; i++) payment_preimage[i] = (byte) (i ^ 0x0f);
249 byte[] payment_hash = Sha256Hash.hash(payment_preimage);
250 Route route = peer1.get_route(peer2.node_id, peer1_chans);
251 Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment(route, payment_hash, new byte[32]);
252 assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
254 peer1.peer_manager.process_events();
255 while (!list.isEmpty()) { list.poll().join(); }
256 peer2.peer_manager.process_events();
257 while (!list.isEmpty()) { list.poll().join(); }
258 peer1.peer_manager.process_events();
259 while (!list.isEmpty()) { list.poll().join(); }
261 events = peer2.chan_manager_events.get_and_clear_pending_events();
262 assert events.length == 1;
263 assert events[0] instanceof Event.PendingHTLCsForwardable;
264 peer2.chan_manager.process_pending_htlc_forwards();
266 events = peer2.chan_manager_events.get_and_clear_pending_events();
267 assert events.length == 1;
268 assert events[0] instanceof Event.PaymentReceived;
269 peer2.chan_manager.claim_funds(payment_preimage, new byte[32], ((Event.PaymentReceived) events[0]).amt);
271 peer2.peer_manager.process_events();
272 while (!list.isEmpty()) { list.poll().join(); }
273 peer1.peer_manager.process_events();
274 while (!list.isEmpty()) { list.poll().join(); }
275 peer2.peer_manager.process_events();
276 while (!list.isEmpty()) { list.poll().join(); }
278 events = peer1.chan_manager_events.get_and_clear_pending_events();
279 assert events.length == 1;
280 assert events[0] instanceof Event.PaymentSent;
281 assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
283 Result_NoneAPIErrorZ close_res = peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id());
284 assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
286 peer1.peer_manager.process_events();
287 while (!list.isEmpty()) { list.poll().join(); }
288 peer2.peer_manager.process_events();
289 while (!list.isEmpty()) { list.poll().join(); }
290 peer1.peer_manager.process_events();
291 while (!list.isEmpty()) { list.poll().join(); }
292 peer2.peer_manager.process_events();
293 while (!list.isEmpty()) { list.poll().join(); }
295 assert peer1.broadcast_set.size() == 1;
296 assert peer2.broadcast_set.size() == 1;
298 bindings.SocketDescriptor_free(descriptor2);
299 bindings.SocketDescriptor_free(descriptor1.val);
303 public void test_message_handler() throws InterruptedException {
304 do_test_message_handler();
307 System.runFinalization();
309 for (WeakReference<Object> o : must_free_objs)
310 assert o.get() == null;