package org.ldk;
+import org.bitcoinj.core.*;
+import org.bitcoinj.script.Script;
import org.junit.jupiter.api.Test;
+import org.ldk.enums.Network;
+import org.ldk.enums.Recipient;
import org.ldk.impl.bindings;
+import java.lang.ref.Reference;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.concurrent.ConcurrentLinkedQueue;
+
public class PeerTest {
- @Test
- void test_message_handler() {
- long logger = bindings.LDKLogger_new((String arg)-> System.out.println(arg));
+ class Peer {
+ final long logger;
+ final long fee_estimator;
+ final long tx_broadcaster;
+ final long chain_monitor;
+ final long keys;
+ final long keys_interface;
+ final long config;
+ final long chan_manager;
+ final long chan_manager_events;
+ final long chan_handler;
+ final long router;
+ final long router_wrapper;
+ final long route_handler;
+ final long message_handler;
+ final long custom_message_handler;
+ final long peer_manager;
+ HashMap<String, Long> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
+ byte[] node_id;
+ bindings.LDKFeeEstimator fee_est;
+ bindings.LDKBroadcasterInterface broad_trait;
+ bindings.LDKLogger log_trait;
+ bindings.LDKWatch watcher;
- long fee_estimator = bindings.LDKFeeEstimator_new(new bindings.LDKFeeEstimator() {
- @Override
- public int get_est_sat_per_1000_weight(bindings.LDKConfirmationTarget confirmation_target) {
- return 0;
- }
- });
- long tx_broadcaster = bindings.LDKBroadcasterInterface_new(new bindings.LDKBroadcasterInterface() {
- @Override
- public void broadcast_transaction(long tx) {
+ Peer(byte seed) {
+ this.log_trait = (long arg) -> {
+ System.out.println(seed + ": " + bindings.Record_get_args(arg));
+ bindings.Record_free(arg);
+ };
+ logger = bindings.LDKLogger_new(this.log_trait);
+ this.fee_est = confirmation_target -> 0;
+ this.fee_estimator = bindings.LDKFeeEstimator_new(this.fee_est);
+ this.broad_trait = tx -> {
// We should broadcast
+ };
+ this.tx_broadcaster = bindings.LDKBroadcasterInterface_new(this.broad_trait);
+ this.monitors = new HashMap<>();
+ this.watcher = new bindings.LDKWatch() {
+ @Override
+ public long watch_channel(long funding_txo, long monitor) {
+ synchronized (monitors) {
+ assert monitors.put(Arrays.toString(bindings.OutPoint_get_txid(funding_txo)), monitor) == null;
+ }
+ bindings.OutPoint_free(funding_txo);
+ return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
+ }
+
+ @Override
+ public long update_channel(long funding_txo, long update) {
+ synchronized (monitors) {
+ String txid = Arrays.toString(bindings.OutPoint_get_txid(funding_txo));
+ assert monitors.containsKey(txid);
+ long update_res = bindings.ChannelMonitor_update_monitor(monitors.get(txid), update, tx_broadcaster, fee_estimator, logger);
+ assert bindings.CResult_NoneNoneZ_is_ok(update_res);
+ bindings.CResult_NoneNoneZ_free(update_res);
+ }
+ bindings.OutPoint_free(funding_txo);
+ bindings.ChannelMonitorUpdate_free(update);
+ return bindings.CResult_NoneChannelMonitorUpdateErrZ_ok();
+ }
+
+ @Override
+ public long[] release_pending_monitor_events() {
+ synchronized (monitors) {
+ assert monitors.size() <= 1;
+ for (Long mon : monitors.values()) {
+ return bindings.ChannelMonitor_get_and_clear_pending_monitor_events(mon);
+ }
+ }
+ return new long[0];
+ }
+ };
+ this.chain_monitor = bindings.LDKWatch_new(this.watcher);
+
+ byte[] key_seed = new byte[32];
+ for (byte i = 0; i < 32; i++) { key_seed[i] = (byte) (i ^ seed); }
+ this.keys = bindings.KeysManager_new(key_seed, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
+ this.keys_interface = bindings.KeysManager_as_KeysInterface(keys);
+ this.config = bindings.UserConfig_default();
+ long params = bindings.ChainParameters_new(Network.LDKNetwork_Bitcoin, bindings.BestBlock_new(new byte[32], 0));
+ this.chan_manager = bindings.ChannelManager_new(fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, params);
+ this.node_id = bindings.ChannelManager_get_our_node_id(chan_manager);
+ this.chan_manager_events = bindings.ChannelManager_as_EventsProvider(chan_manager);
+
+ this.chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
+ this.router = bindings.NetworkGraph_new(new byte[32]);
+ this.router_wrapper = bindings.NetGraphMsgHandler_new(router, bindings.COption_AccessZ_none(), logger);
+ this.route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router_wrapper);
+ this.message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
+ this.custom_message_handler = bindings.IgnoringMessageHandler_new();
+
+ byte[] random_data = new byte[32];
+ for (byte i = 0; i < 32; i++) { random_data[i] = (byte) ((i ^ seed) ^ 0xf0); }
+
+ long node_id_result = bindings.KeysInterface_get_node_secret(keys_interface, Recipient.LDKRecipient_Node);
+ assert bindings.CResult_SecretKeyNoneZ_is_ok(node_id_result);
+ this.peer_manager = bindings.PeerManager_new(message_handler, bindings.CResult_SecretKeyNoneZ_get_ok(node_id_result),
+ random_data, logger, bindings.IgnoringMessageHandler_as_CustomMessageHandler(this.custom_message_handler));
+ bindings.CResult_SecretKeyNoneZ_free(node_id_result);
+ }
+
+ void connect_block(Block b, Transaction t, int height) {
+ long listen = bindings.ChannelManager_as_Listen(chan_manager);
+ bindings.Listen_block_connected(listen, b.bitcoinSerialize(), height);
+ bindings.Listen_free(listen);
+ synchronized (monitors) {
+ for (Long mon : monitors.values()) {
+ long[] txn;
+ if (t != null)
+ txn = new long[]{bindings.C2Tuple_usizeTransactionZ_new(1, t.bitcoinSerialize())};
+ else
+ txn = new long[0];
+ byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
+ long[] ret = bindings.ChannelMonitor_block_connected(mon, header, txn, height, tx_broadcaster, fee_estimator, logger);
+ for (long r : ret) {
+ bindings.C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_free(r);
+ }
+ }
}
- });
- long chain_monitor = bindings.LDKWatch_new(new bindings.LDKWatch() {
- @Override
- public long watch_channel(long funding_txo, long monitor) {
- return 0;
+ }
+
+ void free() {
+ // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
+ bindings.Logger_free(logger);
+ bindings.FeeEstimator_free(fee_estimator);
+ bindings.BroadcasterInterface_free(tx_broadcaster);
+ bindings.Watch_free(chain_monitor);
+ bindings.KeysManager_free(keys);
+ bindings.KeysInterface_free(keys_interface);
+ bindings.UserConfig_free(config);
+ bindings.ChannelManager_free(chan_manager);
+ bindings.EventsProvider_free(chan_manager_events);
+ bindings.ChannelMessageHandler_free(chan_handler);
+ bindings.NetworkGraph_free(router);
+ bindings.NetGraphMsgHandler_free(router_wrapper);
+ bindings.RoutingMessageHandler_free(route_handler);
+ //MessageHandler was actually moved into the route_handler!: bindings.MessageHandler_free(message_handler);
+ bindings.PeerManager_free(peer_manager);
+ synchronized (monitors) {
+ for (Long mon : monitors.values()) {
+ bindings.ChannelMonitor_free(mon);
+ }
}
+ }
+ }
+ class LongHolder { long val; }
+
+ void do_read_event(ConcurrentLinkedQueue<Thread> list, long pm, long descriptor, byte[] arr) {
+ Thread thread = new Thread(() -> {
+ long res = bindings.PeerManager_read_event(pm, descriptor, arr);
+ assert bindings.CResult_boolPeerHandleErrorZ_is_ok(res);
+ //assert bindings.deref_bool(bindings.LDKCResult_boolPeerHandleErrorZ_get_inner(res));
+ bindings.CResult_boolPeerHandleErrorZ_free(res);
+ });
+ thread.start();
+ list.add(thread);
+ }
+
+ void deliver_peer_messages(ConcurrentLinkedQueue<Thread> list, long peer1, long peer2) throws InterruptedException {
+ bindings.PeerManager_process_events(peer1);
+ bindings.PeerManager_process_events(peer2);
+ while (!list.isEmpty()) {
+ list.poll().join();
+ bindings.PeerManager_process_events(peer1);
+ bindings.PeerManager_process_events(peer2);
+ }
+ }
+
+ @Test
+ void test_message_handler() throws InterruptedException {
+ Peer peer1 = new Peer((byte) 1);
+ Peer peer2 = new Peer((byte) 2);
+
+ ConcurrentLinkedQueue<Thread> list = new ConcurrentLinkedQueue<Thread>();
+ LongHolder descriptor1 = new LongHolder();
+ LongHolder descriptor1ref = descriptor1;
+ bindings.LDKSocketDescriptor sock1 = new bindings.LDKSocketDescriptor() {
@Override
- public long update_channel(long funding_txo, long update) {
- return 0;
+ public long send_data(byte[] data, boolean resume_read) {
+ do_read_event(list, peer1.peer_manager, descriptor1ref.val, data);
+ return data.length;
}
+ @Override public void disconnect_socket() { assert false; }
+ @Override public boolean eq(long other_arg) { boolean ret = bindings.SocketDescriptor_hash(other_arg) == 2; bindings.SocketDescriptor_free(other_arg); return ret; }
+ @Override public long hash() { return 2; }
+ };
+ long descriptor2 = bindings.LDKSocketDescriptor_new(sock1);
+
+ bindings.LDKSocketDescriptor sock2 = new bindings.LDKSocketDescriptor() {
@Override
- public long release_pending_monitor_events() {
- return 0;
+ public long send_data(byte[] data, boolean resume_read) {
+ do_read_event(list, peer2.peer_manager, descriptor2, data);
+ return data.length;
}
- });
- byte[] key_seed = new byte[32];
- for (byte i = 0; i < 32; i++) { key_seed[i] = i; }
- long keys = bindings.KeysManager_new(key_seed, bindings.LDKNetwork.LDKNetwork_Bitcoin, System.currentTimeMillis() / 1000, (int)(System.currentTimeMillis() * 1000) & 0xffffffff);
- long keys_interface = bindings.KeysManager_as_KeysInterface(keys);
- long config = bindings.UserConfig_default();
- long chan_manager = bindings.ChannelManager_new(bindings.LDKNetwork.LDKNetwork_Bitcoin, fee_estimator, chain_monitor, tx_broadcaster, logger, keys_interface, config, 1);
-
- long chan_handler = bindings.ChannelManager_as_ChannelMessageHandler(chan_manager);
- long router = bindings.NetGraphMsgHandler_new(0, logger);
- long route_handler = bindings.NetGraphMsgHandler_as_RoutingMessageHandler(router);
- long message_handler = bindings.MessageHandler_new(chan_handler, route_handler);
- long our_node_secret = bindings.LDKSecretKey_new(); //TODO: Need LDKSecretKey constructor
- byte[] random_data = new byte[32];
- for (byte i = 0; i < 32; i++) { random_data[i] = i; }
-
- long peer_manager = bindings.PeerManager_new(message_handler, our_node_secret, random_data, logger);
-
- // Note that we can't rely on finalizer order, so don't bother trying to rely on it here
- bindings.Logger_free(logger);
- bindings.FeeEstimator_free(fee_estimator);
- bindings.BroadcasterInterface_free(tx_broadcaster);
- bindings.Watch_free(chain_monitor);
- bindings.KeysManager_free(keys);
- bindings.KeysInterface_free(keys_interface);
- bindings.ChannelManager_free(chan_manager);
- bindings.ChannelMessageHandler_free(chan_handler);
- bindings.NetGraphMsgHandler_free(router);
- bindings.RoutingMessageHandler_free(route_handler);
- //bindings.MessageHandler_free(message_handler);
- bindings.PeerManager_free(peer_manager);
+
+ @Override public void disconnect_socket() { assert false; }
+ @Override public boolean eq(long other_arg) { boolean ret = bindings.SocketDescriptor_hash(other_arg) == 1; bindings.SocketDescriptor_free(other_arg); return ret; }
+ @Override public long hash() { return 1; }
+ };
+ descriptor1.val = bindings.LDKSocketDescriptor_new(sock2);
+
+ long init_vec = bindings.PeerManager_new_outbound_connection(peer1.peer_manager, peer2.node_id, descriptor1.val);
+ assert(bindings.CResult_CVec_u8ZPeerHandleErrorZ_is_ok(init_vec));
+
+ long con_res = bindings.PeerManager_new_inbound_connection(peer2.peer_manager, descriptor2);
+ assert(bindings.CResult_NonePeerHandleErrorZ_is_ok(con_res));
+ bindings.CResult_NonePeerHandleErrorZ_free(con_res);
+ do_read_event(list, peer2.peer_manager, descriptor2, bindings.CResult_CVec_u8ZPeerHandleErrorZ_get_ok(init_vec));
+ bindings.CResult_CVec_u8ZPeerHandleErrorZ_free(init_vec);
+
+ deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
+
+ long cc_res = bindings.ChannelManager_create_channel(peer1.chan_manager, peer2.node_id, 10000, 1000, 42, 0);
+ assert bindings.CResult_NoneAPIErrorZ_is_ok(cc_res);
+ bindings.CResult_NoneAPIErrorZ_free(cc_res);
+
+ deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
+
+ ArrayList<Long> events = new ArrayList();
+ bindings.LDKEventHandler events_adder = events::add;
+ long handler = bindings.LDKEventHandler_new(events_adder);
+
+ bindings.EventsProvider_process_pending_events(peer1.chan_manager_events, handler);
+ assert events.size() == 1;
+ bindings.LDKEvent event = bindings.LDKEvent_ref_from_ptr(events.get(0));
+ assert event instanceof bindings.LDKEvent.FundingGenerationReady;
+ assert ((bindings.LDKEvent.FundingGenerationReady)event).channel_value_satoshis == 10000;
+ assert ((bindings.LDKEvent.FundingGenerationReady)event).user_channel_id == 42;
+ byte[] funding_spk = ((bindings.LDKEvent.FundingGenerationReady)event).output_script;
+ assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
+ byte[] chan_id = ((bindings.LDKEvent.FundingGenerationReady)event).temporary_channel_id;
+ bindings.Event_free(events.remove(0));
+
+ Transaction funding = new Transaction(NetworkParameters.fromID(NetworkParameters.ID_MAINNET));
+ funding.addInput(new TransactionInput(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), funding, new byte[0]));
+ funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
+ funding.getInput(0).getWitness().setPush(0, new byte[] {0x1});
+ funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
+ bindings.ChannelManager_funding_transaction_generated(peer1.chan_manager, chan_id, funding.bitcoinSerialize());
+
+ deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
+
+ Block b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
+ peer1.connect_block(b, funding, 1);
+ peer2.connect_block(b, funding, 1);
+
+ for (int height = 2; height < 10; height++) {
+ b = new Block(NetworkParameters.fromID(NetworkParameters.ID_MAINNET), 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
+ peer1.connect_block(b, null, height);
+ peer2.connect_block(b, null, height);
+ }
+
+ deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
+
+ long[] peer1_chans = bindings.ChannelManager_list_channels(peer1.chan_manager);
+ long[] peer2_chans = bindings.ChannelManager_list_channels(peer2.chan_manager);
+ assert peer1_chans.length == 1;
+ assert peer2_chans.length == 1;
+ assert bindings.ChannelDetails_get_channel_value_satoshis(peer1_chans[0]) == 10000;
+ assert bindings.ChannelDetails_get_is_usable(peer1_chans[0]);
+ assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer1_chans[0]), funding.getTxId().getReversedBytes());
+ assert Arrays.equals(bindings.ChannelDetails_get_channel_id(peer2_chans[0]), funding.getTxId().getReversedBytes());
+ for (long chan : peer2_chans) bindings.ChannelDetails_free(chan);
+
+ long no_min_val = bindings.COption_u64Z_none();
+ long inbound_payment = bindings.ChannelManager_create_inbound_payment(peer2.chan_manager, no_min_val, 7200);
+ assert bindings.CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_is_ok(inbound_payment);
+ long payment_tuple = bindings.CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_get_ok(inbound_payment);
+ bindings.COption_u64Z_free(no_min_val);
+ long scorer = bindings.Scorer_default();
+ long scorer_interface = bindings.Scorer_as_Score(scorer);
+
+ long no_u64 = bindings.COption_u64Z_none();
+ long invoice_features = bindings.InvoiceFeatures_known();
+ long payee = bindings.PaymentParameters_new(peer2.node_id, invoice_features, new long[0], no_u64, 6*24*14);
+ bindings.InvoiceFeatures_free(invoice_features);
+ bindings.COption_u64Z_free(no_u64);
+ long route_params = bindings.RouteParameters_new(payee, 1000, 42);
+ long route = bindings.find_route(peer1.node_id, route_params, peer1.router, peer1_chans,
+ peer1.logger, scorer_interface);
+ bindings.RouteParameters_free(route_params);
+ bindings.PaymentParameters_free(payee);
+ bindings.Score_free(scorer_interface);
+ bindings.Scorer_free(scorer);
+
+ for (long chan : peer1_chans) bindings.ChannelDetails_free(chan);
+ assert bindings.CResult_RouteLightningErrorZ_is_ok(route);
+ long payment_res = bindings.ChannelManager_send_payment(peer1.chan_manager, bindings.CResult_RouteLightningErrorZ_get_ok(route),
+ bindings.C2Tuple_PaymentHashPaymentSecretZ_get_a(payment_tuple), bindings.C2Tuple_PaymentHashPaymentSecretZ_get_b(payment_tuple));
+ bindings.CResult_RouteLightningErrorZ_free(route);
+ bindings.CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_is_ok(inbound_payment);
+ assert bindings.CResult_NonePaymentSendFailureZ_is_ok(payment_res);
+ bindings.CResult_NonePaymentSendFailureZ_free(payment_res);
+
+ deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
+
+ bindings.EventsProvider_process_pending_events(peer2.chan_manager_events, handler);
+ assert events.size() == 1;
+ bindings.LDKEvent forwardable = bindings.LDKEvent_ref_from_ptr(events.get(0));
+ assert forwardable instanceof bindings.LDKEvent.PendingHTLCsForwardable;
+ bindings.Event_free(events.remove(0));
+ bindings.ChannelManager_process_pending_htlc_forwards(peer2.chan_manager);
+
+ bindings.EventsProvider_process_pending_events(peer2.chan_manager_events, handler);
+ assert events.size() == 1;
+ bindings.LDKEvent payment_recvd = bindings.LDKEvent_ref_from_ptr(events.get(0));
+ assert payment_recvd instanceof bindings.LDKEvent.PaymentReceived;
+ bindings.LDKPaymentPurpose purpose = bindings.LDKPaymentPurpose_ref_from_ptr(((bindings.LDKEvent.PaymentReceived) payment_recvd).purpose);
+ assert purpose instanceof bindings.LDKPaymentPurpose.InvoicePayment;
+ assert bindings.ChannelManager_claim_funds(peer2.chan_manager, ((bindings.LDKPaymentPurpose.InvoicePayment) purpose).payment_preimage);
+ bindings.Event_free(events.remove(0));
+
+ deliver_peer_messages(list, peer1.peer_manager, peer2.peer_manager);
+
+ bindings.EventsProvider_process_pending_events(peer1.chan_manager_events, handler);
+ assert events.size() == 2;
+ bindings.LDKEvent sent = bindings.LDKEvent_ref_from_ptr(events.get(0));
+ assert sent instanceof bindings.LDKEvent.PaymentSent;
+ bindings.Event_free(events.remove(0));
+ bindings.LDKEvent sent_path = bindings.LDKEvent_ref_from_ptr(events.get(0));
+ assert sent_path instanceof bindings.LDKEvent.PaymentPathSuccessful;
+ bindings.Event_free(events.remove(0));
+ Reference.reachabilityFence(events_adder);
+
+ bindings.EventHandler_free(handler);
+
+ peer1.free();
+ peer2.free();
+ bindings.SocketDescriptor_free(descriptor2);
+ bindings.SocketDescriptor_free(descriptor1.val);
}
}
projects / ldk-java / blobdiff