--- /dev/null
+package org.ldk.structs;
+
+import org.ldk.impl.bindings;
+import org.ldk.enums.*;
+import org.ldk.util.*;
+import java.util.Arrays;
+import java.lang.ref.Reference;
+import javax.annotation.Nullable;
+
+
+/**
+ * A sender, receiver and forwarder of onion messages. In upcoming releases, this object will be
+ * used to retrieve invoices and fulfill invoice requests from [offers]. Currently, only sending
+ * and receiving empty onion messages is supported.
+ *
+ * # Example
+ *
+ * ```
+ * # extern crate bitcoin;
+ * # use bitcoin::hashes::_export::_core::time::Duration;
+ * # use bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};
+ * # use lightning::chain::keysinterface::{InMemorySigner, KeysManager, KeysInterface};
+ * # use lightning::onion_message::messenger::{Destination, OnionMessenger};
+ * # use lightning::onion_message::blinded_route::BlindedRoute;
+ * # use lightning::util::logger::{Logger, Record};
+ * # use std::sync::Arc;
+ * # struct FakeLogger {};
+ * # impl Logger for FakeLogger {
+ * # fn log(&self, record: &Record) { unimplemented!() }
+ * # }
+ * # let seed = [42u8; 32];
+ * # let time = Duration::from_secs(123456);
+ * # let keys_manager = KeysManager::new(&seed, time.as_secs(), time.subsec_nanos());
+ * # let logger = Arc::new(FakeLogger {});
+ * # let node_secret = SecretKey::from_slice(&hex::decode(\"0101010101010101010101010101010101010101010101010101010101010101\").unwrap()[..]).unwrap();
+ * # let secp_ctx = Secp256k1::new();
+ * # let hop_node_id1 = PublicKey::from_secret_key(&secp_ctx, &node_secret);
+ * # let (hop_node_id2, hop_node_id3, hop_node_id4) = (hop_node_id1, hop_node_id1,
+ * hop_node_id1);
+ * # let destination_node_id = hop_node_id1;
+ * #
+ * Create the onion messenger. This must use the same `keys_manager` as is passed to your
+ * ChannelManager.
+ * let onion_messenger = OnionMessenger::new(&keys_manager, logger);
+ *
+ * Send an empty onion message to a node id.
+ * let intermediate_hops = [hop_node_id1, hop_node_id2];
+ * let reply_path = None;
+ * onion_messenger.send_onion_message(&intermediate_hops, Destination::Node(destination_node_id), reply_path);
+ *
+ * Create a blinded route to yourself, for someone to send an onion message to.
+ * # let your_node_id = hop_node_id1;
+ * let hops = [hop_node_id3, hop_node_id4, your_node_id];
+ * let blinded_route = BlindedRoute::new(&hops, &keys_manager, &secp_ctx).unwrap();
+ *
+ * Send an empty onion message to a blinded route.
+ * # let intermediate_hops = [hop_node_id1, hop_node_id2];
+ * let reply_path = None;
+ * onion_messenger.send_onion_message(&intermediate_hops, Destination::BlindedRoute(blinded_route), reply_path);
+ * ```
+ *
+ * [offers]: <https://github.com/lightning/bolts/pull/798>
+ * [`OnionMessenger`]: crate::onion_message::OnionMessenger
+ */
+@SuppressWarnings("unchecked") // We correctly assign various generic arrays
+public class OnionMessenger extends CommonBase {
+ OnionMessenger(Object _dummy, long ptr) { super(ptr); }
+ @Override @SuppressWarnings("deprecation")
+ protected void finalize() throws Throwable {
+ super.finalize();
+ if (ptr != 0) { bindings.OnionMessenger_free(ptr); }
+ }
+
+ /**
+ * Constructs a new `OnionMessenger` to send, forward, and delegate received onion messages to
+ * their respective handlers.
+ */
+ public static OnionMessenger of(KeysInterface keys_manager, Logger logger) {
+ long ret = bindings.OnionMessenger_new(keys_manager == null ? 0 : keys_manager.ptr, logger == null ? 0 : logger.ptr);
+ Reference.reachabilityFence(keys_manager);
+ Reference.reachabilityFence(logger);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ org.ldk.structs.OnionMessenger ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.OnionMessenger(null, ret); }
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(ret_hu_conv); };
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(keys_manager); };
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(logger); };
+ return ret_hu_conv;
+ }
+
+ /**
+ * Send an empty onion message to `destination`, routing it through `intermediate_nodes`.
+ * See [`OnionMessenger`] for example usage.
+ *
+ * Note that reply_path (or a relevant inner pointer) may be NULL or all-0s to represent None
+ */
+ public Result_NoneSendErrorZ send_onion_message(byte[][] intermediate_nodes, Destination destination, @Nullable BlindedRoute reply_path) {
+ long ret = bindings.OnionMessenger_send_onion_message(this.ptr, intermediate_nodes != null ? Arrays.stream(intermediate_nodes).map(intermediate_nodes_conv_8 -> InternalUtils.check_arr_len(intermediate_nodes_conv_8, 33)).toArray(byte[][]::new) : null, destination.ptr, reply_path == null ? 0 : reply_path.ptr);
+ Reference.reachabilityFence(this);
+ Reference.reachabilityFence(intermediate_nodes);
+ Reference.reachabilityFence(destination);
+ Reference.reachabilityFence(reply_path);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ Result_NoneSendErrorZ ret_hu_conv = Result_NoneSendErrorZ.constr_from_ptr(ret);
+ if (this != null) { this.ptrs_to.add(reply_path); };
+ return ret_hu_conv;
+ }
+
+ /**
+ * Constructs a new OnionMessageHandler which calls the relevant methods on this_arg.
+ * This copies the `inner` pointer in this_arg and thus the returned OnionMessageHandler must be freed before this_arg is
+ */
+ public OnionMessageHandler as_OnionMessageHandler() {
+ long ret = bindings.OnionMessenger_as_OnionMessageHandler(this.ptr);
+ Reference.reachabilityFence(this);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ OnionMessageHandler ret_hu_conv = new OnionMessageHandler(null, ret);
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
+ return ret_hu_conv;
+ }
+
+ /**
+ * Constructs a new OnionMessageProvider which calls the relevant methods on this_arg.
+ * This copies the `inner` pointer in this_arg and thus the returned OnionMessageProvider must be freed before this_arg is
+ */
+ public OnionMessageProvider as_OnionMessageProvider() {
+ long ret = bindings.OnionMessenger_as_OnionMessageProvider(this.ptr);
+ Reference.reachabilityFence(this);
+ if (ret >= 0 && ret <= 4096) { return null; }
+ OnionMessageProvider ret_hu_conv = new OnionMessageProvider(null, ret);
+ if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
+ return ret_hu_conv;
+ }
+
+}
projects / ldk-java / blobdiff