# These are backup files generated by rustfmt
**/*.rs.bk
+.ldk
[[package]]
name = "bitcoin"
-version = "0.24.0"
+version = "0.26.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6558aeb12c290cce541a222cba280387161f2bd180a7feb85f8f172cd8ba80e8"
+checksum = "1ec5f88a446d66e7474a3b8fa2e348320b574463fb78d799d90ba68f79f48e0e"
dependencies = [
"bech32 0.7.2",
- "bitcoin_hashes 0.8.0",
- "secp256k1 0.18.0",
+ "bitcoin_hashes",
+ "secp256k1",
]
[[package]]
"bech32 0.4.1",
]
-[[package]]
-name = "bitcoin_hashes"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b0ab784be052cc1e915a78b8aaf5101eebbc2d0ab2b6f5124985f3677ae2bea"
-
[[package]]
name = "bitcoin_hashes"
version = "0.9.4"
dependencies = [
"background-processor",
"base64",
+ "bech32 0.7.2",
"bitcoin",
"bitcoin-bech32",
"hex",
"lightning",
"serde",
"serde_json",
- "tokio",
]
[[package]]
name = "lightning-invoice"
version = "0.4.0"
-source = "git+https://github.com/rust-bitcoin/rust-lightning-invoice?rev=ea25dc7e46a6339493032c500db4fe3a8fdb1acd#ea25dc7e46a6339493032c500db4fe3a8fdb1acd"
dependencies = [
"bech32 0.7.2",
- "bitcoin_hashes 0.9.4",
+ "bitcoin_hashes",
"num-traits",
- "secp256k1 0.20.1",
+ "secp256k1",
]
[[package]]
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
-[[package]]
-name = "secp256k1"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f3f534ef4e9dfa6c4b2ccca131f791daddf9cc2123b4124615cb144ea91611a"
-dependencies = [
- "secp256k1-sys 0.2.0",
-]
-
[[package]]
name = "secp256k1"
version = "0.20.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "733b114f058f260c0af7591434eef4272ae1a8ec2751766d3cb89c6df8d5e450"
dependencies = [
- "secp256k1-sys 0.4.0",
-]
-
-[[package]]
-name = "secp256k1-sys"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71453d9b088b19ae43a803d88ecaa876b11ed8999df024cca4becb6be9aee351"
-dependencies = [
- "cc",
+ "secp256k1-sys",
]
[[package]]
# background-processor = { git = "https://github.com/rust-bitcoin/rust-lightning", rev = "d6f41d3c0b38b9ec9e06a3acfdd9f4b1d007a27d" }
background-processor = { path = "../rust-lightning/background-processor" }
base64 = "0.13.0"
-bitcoin = "0.24"
+bitcoin = "0.26"
bitcoin-bech32 = "0.7"
+bech32 = "0.7"
hex = "0.3"
# lightning = { git = "https://github.com/rust-bitcoin/rust-lightning", rev = "c35002fa9c16042badfa5e7bf819df5f1d2ae60a" }
lightning = { path = "../rust-lightning/lightning" }
-lightning-block-sync = { path = "../rust-lightning/lightning-block-sync", features = ["rpc-client", "generic-rpc-client" ] }
-lightning-invoice = { git = "https://github.com/rust-bitcoin/rust-lightning-invoice", rev = "ea25dc7e46a6339493032c500db4fe3a8fdb1acd" }
+lightning-block-sync = { path = "../rust-lightning/lightning-block-sync", features = ["rpc-client"] }
+# lightning-invoice = { git = "https://github.com/rust-bitcoin/rust-lightning-invoice", rev = "ea25dc7e46a6339493032c500db4fe3a8fdb1acd" }
+lightning-invoice = { path = "../rust-lightning-invoice" }
# lightning-net-tokio = { git = "https://github.com/rust-bitcoin/rust-lightning", rev = "ff00f6f8861419b73269e6c51d75ac9de75f1d1f" }
lightning-net-tokio = { path = "../rust-lightning/lightning-net-tokio" }
# lightning-persister = { git = "https://github.com/rust-bitcoin/rust-lightning", rev = "aa127f55edc4439b03426644d178e402397329e8" }
use base64;
-use serde_json;
-
use bitcoin::blockdata::transaction::Transaction;
use bitcoin::consensus::encode;
+use bitcoin::util::address::Address;
+use crate::convert::{BlockchainInfo, FeeResponse, FundedTx, NewAddress, RawTx, SignedTx};
use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
use lightning_block_sync::http::HttpEndpoint;
use lightning_block_sync::rpc::RpcClient;
-
+use serde_json;
+use std::collections::HashMap;
+use std::str::FromStr;
use std::sync::Mutex;
+use tokio::runtime::{Handle, Runtime};
pub struct BitcoindClient {
- pub bitcoind_rpc_client: Mutex<RpcClient>,
+ bitcoind_rpc_client: Mutex<RpcClient>,
+ host: String,
+ port: u16,
+ rpc_user: String,
+ rpc_password: String,
+ runtime: Mutex<Runtime>,
}
impl BitcoindClient {
- pub fn new(host: String, port: u16, path: Option<String>, rpc_user: String, rpc_password: String) ->
+ pub fn new(host: String, port: u16, rpc_user: String, rpc_password: String) ->
std::io::Result<Self>
{
- let mut http_endpoint = HttpEndpoint::for_host(host).with_port(port);
- if let Some(p) = path {
- http_endpoint = http_endpoint.with_path(p);
- }
- let rpc_credentials = base64::encode(format!("{}:{}", rpc_user, rpc_password));
+ let http_endpoint = HttpEndpoint::for_host(host.clone()).with_port(port);
+ let rpc_credentials = base64::encode(format!("{}:{}", rpc_user.clone(),
+ rpc_password.clone()));
let bitcoind_rpc_client = RpcClient::new(&rpc_credentials, http_endpoint)?;
- Ok(Self {
- bitcoind_rpc_client: Mutex::new(bitcoind_rpc_client)
- })
+ let client = Self {
+ bitcoind_rpc_client: Mutex::new(bitcoind_rpc_client),
+ host,
+ port,
+ rpc_user,
+ rpc_password,
+ runtime: Mutex::new(Runtime::new().unwrap()),
+ // runtime: Mutex::new(runtime),
+ };
+ Ok(client)
+ }
+
+ pub fn get_new_rpc_client(&self) -> std::io::Result<RpcClient> {
+ let http_endpoint = HttpEndpoint::for_host(self.host.clone()).with_port(self.port);
+ let rpc_credentials = base64::encode(format!("{}:{}",
+ self.rpc_user.clone(),
+ self.rpc_password.clone()));
+ RpcClient::new(&rpc_credentials, http_endpoint)
+ }
+
+ pub fn create_raw_transaction(&self, outputs: Vec<HashMap<String, f64>>) -> RawTx {
+ let runtime = self.runtime.lock().unwrap();
+ let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+
+ let outputs_json = serde_json::json!(outputs);
+ runtime.block_on(rpc.call_method::<RawTx>("createrawtransaction", &vec![serde_json::json!([]), outputs_json])).unwrap()
+ }
+
+ pub fn fund_raw_transaction(&self, raw_tx: RawTx) -> FundedTx {
+ let runtime = self.runtime.lock().unwrap();
+ let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+
+ let raw_tx_json = serde_json::json!(raw_tx.0);
+ runtime.block_on(rpc.call_method("fundrawtransaction", &[raw_tx_json])).unwrap()
+ }
+
+ pub fn sign_raw_transaction_with_wallet(&self, tx_hex: String) -> SignedTx {
+ let runtime = self.runtime.lock().unwrap();
+ let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+
+ let tx_hex_json = serde_json::json!(tx_hex);
+ runtime.block_on(rpc.call_method("signrawtransactionwithwallet",
+ &vec![tx_hex_json])).unwrap()
+ }
+
+ pub fn get_new_address(&self) -> Address {
+ let runtime = self.runtime.lock().unwrap();
+ let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+
+ let addr_args = vec![serde_json::json!("LDK output address")];
+ let addr = runtime.block_on(rpc.call_method::<NewAddress>("getnewaddress", &addr_args)).unwrap();
+ Address::from_str(addr.0.as_str()).unwrap()
+ }
+
+ pub fn get_blockchain_info(&self) -> BlockchainInfo {
+ let runtime = self.runtime.lock().unwrap();
+ let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+
+ runtime.block_on(rpc.call_method::<BlockchainInfo>("getblockchaininfo",
+ &vec![])).unwrap()
}
}
impl FeeEstimator for BitcoindClient {
fn get_est_sat_per_1000_weight(&self, confirmation_target: ConfirmationTarget) -> u32 {
- let mut rpc_client_guard = self.bitcoind_rpc_client.lock().unwrap();
- match confirmation_target {
- ConfirmationTarget::Background => {
- let conf_target = serde_json::json!(144);
- let estimate_mode = serde_json::json!("ECONOMICAL");
- let resp = rpc_client_guard.call_method("estimatesmartfee",
- &vec![conf_target, estimate_mode]).unwrap();
- if !resp["errors"].is_null() && resp["errors"].as_array().unwrap().len() > 0 {
- return 253
- }
- resp["feerate"].as_u64().unwrap() as u32
- },
- ConfirmationTarget::Normal => {
- let conf_target = serde_json::json!(18);
- let estimate_mode = serde_json::json!("ECONOMICAL");
- let resp = rpc_client_guard.call_method("estimatesmartfee",
- &vec![conf_target, estimate_mode]).unwrap();
- if !resp["errors"].is_null() && resp["errors"].as_array().unwrap().len() > 0 {
- return 253
- }
- resp["feerate"].as_u64().unwrap() as u32
- },
- ConfirmationTarget::HighPriority => {
- let conf_target = serde_json::json!(6);
- let estimate_mode = serde_json::json!("CONSERVATIVE");
- let resp = rpc_client_guard.call_method("estimatesmartfee",
- &vec![conf_target, estimate_mode]).unwrap();
- if !resp["errors"].is_null() && resp["errors"].as_array().unwrap().len() > 0 {
- return 253
- }
- resp["feerate"].as_u64().unwrap() as u32
+ let runtime = self.runtime.lock().unwrap();
+ let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+
+ let (conf_target, estimate_mode, default) = match confirmation_target {
+ ConfirmationTarget::Background => (144, "ECONOMICAL", 253),
+ ConfirmationTarget::Normal => (18, "ECONOMICAL", 20000),
+ ConfirmationTarget::HighPriority => (6, "ECONOMICAL", 50000),
+ };
+
+ // If we're already in a tokio runtime, then we need to get out of it before we can broadcast.
+ let conf_target_json = serde_json::json!(conf_target);
+ let estimate_mode_json = serde_json::json!(estimate_mode);
+ let resp = match Handle::try_current() {
+ Ok(_) => {
+ tokio::task::block_in_place(|| {
+ runtime.block_on(rpc.call_method::<FeeResponse>("estimatesmartfee",
+ &vec![conf_target_json,
+ estimate_mode_json])).unwrap()
+ })
},
+ _ => runtime.block_on(rpc.call_method::<FeeResponse>("estimatesmartfee",
+ &vec![conf_target_json,
+ estimate_mode_json])).unwrap()
+ };
+ if resp.errored {
+ return default
}
+ resp.feerate.unwrap()
}
}
impl BroadcasterInterface for BitcoindClient {
fn broadcast_transaction(&self, tx: &Transaction) {
- let mut rpc_client_guard = self.bitcoind_rpc_client.lock().unwrap();
+ let mut rpc = self.bitcoind_rpc_client.lock().unwrap();
+ let runtime = self.runtime.lock().unwrap();
+
let tx_serialized = serde_json::json!(encode::serialize_hex(tx));
- rpc_client_guard.call_method("sendrawtransaction", &vec![tx_serialized]).unwrap();
+ // If we're already in a tokio runtime, then we need to get out of it before we can broadcast.
+ match Handle::try_current() {
+ Ok(_) => {
+ tokio::task::block_in_place(|| {
+ runtime.block_on(rpc.call_method::<RawTx>("sendrawtransaction",
+ &vec![tx_serialized])).unwrap();
+ });
+ },
+ _ => {
+ runtime.block_on(rpc.call_method::<RawTx>("sendrawtransaction",
+ &vec![tx_serialized])).unwrap();
+ }
+ }
}
}
-use bitcoin::secp256k1::key::PublicKey;
-use crate::{FilesystemLogger, PeerManager, ChannelManager};
-use crate::utils;
+use bitcoin::network::constants::Network;
+use bitcoin::hashes::Hash;
+use bitcoin::hashes::sha256::Hash as Sha256Hash;
+use bitcoin::secp256k1::Secp256k1;
+use bitcoin::secp256k1::key::{PublicKey, SecretKey};
+use crate::{ChannelManager, FilesystemLogger, HTLCDirection, HTLCStatus, NETWORK,
+ PaymentInfoStorage, PeerManager};
+use crate::disk;
+use crate::hex_utils;
+use lightning::chain;
+use lightning::ln::channelmanager::{PaymentHash, PaymentPreimage, PaymentSecret};
+use lightning::ln::features::InvoiceFeatures;
+use lightning::routing::network_graph::NetGraphMsgHandler;
+use lightning::routing::router;
+use lightning::util::config::UserConfig;
+use rand;
+use rand::Rng;
+use std::env;
use std::io;
use std::io::{BufRead, Write};
use std::net::{SocketAddr, TcpStream};
+use std::ops::Deref;
+use std::path::Path;
+use std::str::FromStr;
use std::sync::Arc;
-use std::thread;
use std::time::Duration;
-// use tokio::runtime::Runtime;
-use tokio::runtime::{Builder, Runtime};
+use tokio::runtime::Handle;
use tokio::sync::mpsc;
-pub fn poll_for_user_input(peer_manager: Arc<PeerManager>, channel_manager: Arc<ChannelManager>, event_notifier: mpsc::Sender<()>) {
- println!("LDK startup successful. To view available commands: \"help\".\nLDK logs are available in the `logs` folder of the current directory.");
- print!("> "); io::stdout().flush().unwrap(); // Without flushing, the `>` doesn't print
+pub(crate) struct LdkUserInfo {
+ pub(crate) bitcoind_rpc_username: String,
+ pub(crate) bitcoind_rpc_password: String,
+ pub(crate) bitcoind_rpc_port: u16,
+ pub(crate) bitcoind_rpc_host: String,
+ pub(crate) ldk_storage_dir_path: String,
+ pub(crate) ldk_peer_listening_port: u16,
+}
+
+pub(crate) fn parse_startup_args() -> Result<LdkUserInfo, ()> {
+ if env::args().len() < 4 {
+ println!("ldk-tutorial-node requires 3 arguments: `cargo run <bitcoind-rpc-username>:<bitcoind-rpc-password>@<bitcoind-rpc-host>:<bitcoind-rpc-port> ldk_storage_directory_path [optional: <ldk-incoming-peer-listening-port>]`");
+ return Err(())
+ }
+ let bitcoind_rpc_info = env::args().skip(1).next().unwrap();
+ let bitcoind_rpc_info_parts: Vec<&str> = bitcoind_rpc_info.split("@").collect();
+ if bitcoind_rpc_info_parts.len() != 2 {
+ println!("ERROR: bad bitcoind RPC URL provided");
+ return Err(())
+ }
+ let rpc_user_and_password: Vec<&str> = bitcoind_rpc_info_parts[0].split(":").collect();
+ if rpc_user_and_password.len() != 2 {
+ println!("ERROR: bad bitcoind RPC username/password combo provided");
+ return Err(())
+ }
+ let bitcoind_rpc_username = rpc_user_and_password[0].to_string();
+ let bitcoind_rpc_password = rpc_user_and_password[1].to_string();
+ let bitcoind_rpc_path: Vec<&str> = bitcoind_rpc_info_parts[1].split(":").collect();
+ if bitcoind_rpc_path.len() != 2 {
+ println!("ERROR: bad bitcoind RPC path provided");
+ return Err(())
+ }
+ let bitcoind_rpc_host = bitcoind_rpc_path[0].to_string();
+ let bitcoind_rpc_port = bitcoind_rpc_path[1].parse::<u16>().unwrap();
+
+ let ldk_storage_dir_path = env::args().skip(2).next().unwrap();
+
+ let ldk_peer_listening_port: u16 = match env::args().skip(3).next().map(|p| p.parse()) {
+ Some(Ok(p)) => p,
+ Some(Err(e)) => panic!(e),
+ None => 9735,
+ };
+ Ok(LdkUserInfo {
+ bitcoind_rpc_username,
+ bitcoind_rpc_password,
+ bitcoind_rpc_host,
+ bitcoind_rpc_port,
+ ldk_storage_dir_path,
+ ldk_peer_listening_port,
+ })
+}
+
+pub(crate) fn poll_for_user_input(peer_manager: Arc<PeerManager>, channel_manager:
+ Arc<ChannelManager>, router: Arc<NetGraphMsgHandler<Arc<dyn
+ chain::Access>, Arc<FilesystemLogger>>>, payment_storage:
+ PaymentInfoStorage, node_privkey: SecretKey, event_notifier:
+ mpsc::Sender<()>, ldk_data_dir: String, logger: Arc<FilesystemLogger>,
+ runtime_handle: Handle) {
+ println!("LDK startup successful. To view available commands: \"help\".\nLDK logs are available in the `logs` folder of <your-supplied-ldk-data-dir-path>/.ldk/logs");
let stdin = io::stdin();
+ print!("> "); io::stdout().flush().unwrap(); // Without flushing, the `>` doesn't print
for line in stdin.lock().lines() {
+ let _ = event_notifier.try_send(());
let line = line.unwrap();
let mut words = line.split_whitespace();
if let Some(word) = words.next() {
match word {
- "help" => handle_help(),
+ "help" => help(),
"openchannel" => {
let peer_pubkey_and_ip_addr = words.next();
let channel_value_sat = words.next();
if peer_pubkey_and_ip_addr.is_none() || channel_value_sat.is_none() {
- println!("ERROR: openchannel takes 2 arguments: `openchannel pubkey@host:port channel_amt_satoshis`")
- } else {
- let peer_pubkey_and_ip_addr = peer_pubkey_and_ip_addr.unwrap();
- let channel_value_sat = channel_value_sat.unwrap();
- let mut pubkey_and_addr = peer_pubkey_and_ip_addr.split("@");
- let pubkey = pubkey_and_addr.next();
- let peer_addr_str = pubkey_and_addr.next();
- if peer_addr_str.is_none() || peer_addr_str.is_none() {
- println!("ERROR: incorrectly formatted peer info. Should be formatted as: `pubkey@host:port`");
- } else {
- let pubkey = pubkey.unwrap();
- let peer_addr_str = peer_addr_str.unwrap();
- let peer_addr_res: Result<SocketAddr, _> = peer_addr_str.parse();
- let chan_amt: Result<u64, _> = channel_value_sat.parse();
- if let Some(pk) = utils::hex_to_compressed_pubkey(pubkey) {
- if let Ok(addr) = peer_addr_res {
- if let Ok(amt) = chan_amt {
- handle_open_channel(pk, addr, amt,
- peer_manager.clone(),
- channel_manager.clone(),
- event_notifier.clone());
- } else {
- println!("ERROR: channel amount must be a number");
+ println!("ERROR: openchannel takes 2 arguments: `openchannel pubkey@host:port channel_amt_satoshis`");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ let peer_pubkey_and_ip_addr = peer_pubkey_and_ip_addr.unwrap();
+ let (pubkey, peer_addr) = match parse_peer_info(peer_pubkey_and_ip_addr.to_string()) {
+ Ok(info) => info,
+ Err(e) => {
+ println!("{:?}", e.into_inner().unwrap());
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ };
+
+ let chan_amt_sat: Result<u64, _> = channel_value_sat.unwrap().parse();
+ if chan_amt_sat.is_err() {
+ println!("ERROR: channel amount must be a number");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+
+ if connect_peer_if_necessary(pubkey, peer_addr, peer_manager.clone(),
+ event_notifier.clone(),
+ runtime_handle.clone()).is_err() {
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ };
+
+ if open_channel(pubkey, chan_amt_sat.unwrap(), channel_manager.clone()).is_ok() {
+ let peer_data_path = format!("{}/channel_peer_data", ldk_data_dir.clone());
+ let _ = disk::persist_channel_peer(Path::new(&peer_data_path), peer_pubkey_and_ip_addr);
+ }
+ },
+ "sendpayment" => {
+ let invoice_str = words.next();
+ if invoice_str.is_none() {
+ println!("ERROR: sendpayment requires an invoice: `sendpayment <invoice>`");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+
+ let invoice_res = lightning_invoice::Invoice::from_str(invoice_str.unwrap());
+ if invoice_res.is_err() {
+ println!("ERROR: invalid invoice: {:?}", invoice_res.unwrap_err());
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ let invoice = invoice_res.unwrap();
+
+ let amt_pico_btc = invoice.amount_pico_btc();
+ if amt_pico_btc.is_none () {
+ println!("ERROR: invalid invoice: must contain amount to pay");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ let amt_msat = amt_pico_btc.unwrap() / 10;
+
+ let payee_pubkey = invoice.recover_payee_pub_key();
+ let final_cltv = *invoice.min_final_cltv_expiry().unwrap_or(&9) as u32;
+
+ let mut payment_hash = PaymentHash([0; 32]);
+ payment_hash.0.copy_from_slice(&invoice.payment_hash().as_ref()[0..32]);
+
+
+ let payment_secret = match invoice.payment_secret() {
+ Some(secret) => {
+ let mut payment_secret = PaymentSecret([0; 32]);
+ payment_secret.0.copy_from_slice(&secret.0);
+ Some(payment_secret)
+ },
+ None => None
+ };
+
+ let mut invoice_features = InvoiceFeatures::empty();
+ for field in &invoice.into_signed_raw().raw_invoice().data.tagged_fields {
+ match field {
+ lightning_invoice::RawTaggedField::UnknownSemantics(vec) => {
+ if vec[0] == bech32::u5::try_from_u8(5).unwrap() {
+ if vec.len() >= 6 && vec[5].to_u8() & 0b10000 != 0 {
+ invoice_features.set_supports_var_onion_optin();
+ }
+ if vec.len() >= 6 && vec[5].to_u8() & 0b01000 != 0 {
+ invoice_features.set_requires_var_onion_optin();
+ }
+ if vec.len() >= 4 && vec[3].to_u8() & 0b00001 != 0 {
+ invoice_features.set_supports_payment_secret();
+ }
+ if vec.len() >= 5 && vec[4].to_u8() & 0b10000 != 0 {
+ invoice_features.set_requires_payment_secret();
+ }
+ if vec.len() >= 4 && vec[3].to_u8() & 0b00100 != 0 {
+ invoice_features.set_supports_basic_mpp();
+ }
+ if vec.len() >= 4 && vec[3].to_u8() & 0b00010 != 0 {
+ invoice_features.set_requires_basic_mpp();
}
- } else {
- println!("ERROR: couldn't parse
- pubkey@host:port into a socket address");
}
- } else {
- println!("ERROR: unable to parse given pubkey for node");
- }
+ },
+ _ => {}
}
}
+ let invoice_features_opt = match invoice_features == InvoiceFeatures::empty() {
+ true => None,
+ false => Some(invoice_features)
+ };
+ send_payment(payee_pubkey, amt_msat, final_cltv, payment_hash,
+ payment_secret, invoice_features_opt, router.clone(),
+ channel_manager.clone(), payment_storage.clone(),
+ logger.clone());
},
- _ => println!("hello")
+ "getinvoice" => {
+ let amt_str = words.next();
+ if amt_str.is_none() {
+ println!("ERROR: getinvoice requires an amount in satoshis");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+
+ let amt_sat: Result<u64, _> = amt_str.unwrap().parse();
+ if amt_sat.is_err() {
+ println!("ERROR: getinvoice provided payment amount was not a number");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ get_invoice(amt_sat.unwrap(), payment_storage.clone(), node_privkey.clone(),
+ channel_manager.clone(), router.clone());
+ },
+ "connectpeer" => {
+ let peer_pubkey_and_ip_addr = words.next();
+ if peer_pubkey_and_ip_addr.is_none() {
+ println!("ERROR: connectpeer requires peer connection info: `connectpeer pubkey@host:port`");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ let (pubkey, peer_addr) = match parse_peer_info(peer_pubkey_and_ip_addr.unwrap().to_string()) {
+ Ok(info) => info,
+ Err(e) => {
+ println!("{:?}", e.into_inner().unwrap());
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ };
+ if connect_peer_if_necessary(pubkey, peer_addr, peer_manager.clone(),
+ event_notifier.clone(), runtime_handle.clone()).is_ok() {
+ println!("SUCCESS: connected to peer {}", pubkey);
+ }
+
+ },
+ "listchannels" => list_channels(channel_manager.clone()),
+ "listpayments" => list_payments(payment_storage.clone()),
+ "closechannel" => {
+ let channel_id_str = words.next();
+ if channel_id_str.is_none() {
+ println!("ERROR: closechannel requires a channel ID: `closechannel <channel_id>`");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
+ if channel_id_vec.is_none() {
+ println!("ERROR: couldn't parse channel_id as hex");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ let mut channel_id = [0; 32];
+ channel_id.copy_from_slice(&channel_id_vec.unwrap());
+ close_channel(channel_id, channel_manager.clone());
+ },
+ "forceclosechannel" => {
+ let channel_id_str = words.next();
+ if channel_id_str.is_none() {
+ println!("ERROR: forceclosechannel requires a channel ID: `forceclosechannel <channel_id>`");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ let channel_id_vec = hex_utils::to_vec(channel_id_str.unwrap());
+ if channel_id_vec.is_none() {
+ println!("ERROR: couldn't parse channel_id as hex");
+ print!("> "); io::stdout().flush().unwrap(); continue;
+ }
+ let mut channel_id = [0; 32];
+ channel_id.copy_from_slice(&channel_id_vec.unwrap());
+ force_close_channel(channel_id, channel_manager.clone());
+ }
+ _ => println!("Unknown command. See `\"help\" for available commands.")
}
}
print!("> "); io::stdout().flush().unwrap();
}
}
-fn handle_help() {
- println!("")
+fn help() {
+ println!("openchannel pubkey@host:port channel_amt_satoshis");
+ println!("sendpayment <invoice>");
+ println!("getinvoice <amt_in_satoshis>");
+ println!("connectpeer pubkey@host:port");
+ println!("listchannels");
+ println!("listpayments");
+ println!("closechannel <channel_id>");
+ println!("forceclosechannel <channel_id>");
}
-fn handle_open_channel(peer_pubkey: PublicKey, peer_socket: SocketAddr,
- channel_amt_sat: u64, peer_manager: Arc<PeerManager>,
- channel_manager: Arc<ChannelManager>, event_notifier:
- mpsc::Sender<()>)
-{
- // let runtime = Runtime::new().expect("Unable to create a runtime").enable_all();
- let runtime = Builder::new_multi_thread()
- .worker_threads(3)
- .enable_all()
- .build()
- .unwrap();
- match TcpStream::connect_timeout(&peer_socket, Duration::from_secs(10)) {
+fn list_channels(channel_manager: Arc<ChannelManager>) {
+ print!("[");
+ for chan_info in channel_manager.list_channels() {
+ println!("");
+ println!("\t{{");
+ println!("\t\tchannel_id: {},", hex_utils::hex_str(&chan_info.channel_id[..]));
+ println!("\t\tpeer_pubkey: {},", hex_utils::hex_str(&chan_info.remote_network_id.serialize()));
+ let mut pending_channel = false;
+ match chan_info.short_channel_id {
+ Some(id) => println!("\t\tshort_channel_id: {},", id),
+ None => {
+ pending_channel = true;
+ }
+ }
+ println!("\t\tpending_open: {},", pending_channel);
+ println!("\t\tchannel_value_satoshis: {},", chan_info.channel_value_satoshis);
+ println!("\t\tchannel_can_send_payments: {},", chan_info.is_live);
+ println!("\t}},");
+ }
+ println!("]");
+}
+
+fn list_payments(payment_storage: PaymentInfoStorage) {
+ let payments = payment_storage.lock().unwrap();
+ print!("[");
+ for (payment_hash, payment_info) in payments.deref() {
+ println!("");
+ println!("\t{{");
+ println!("\t\tpayment_hash: {},", hex_utils::hex_str(&payment_hash.0));
+ println!("\t\thtlc_direction: {},", if payment_info.1 == HTLCDirection::Inbound { "inbound" } else { "outbound" });
+ println!("\t\thtlc_status: {},", match payment_info.2 {
+ HTLCStatus::Pending => "pending",
+ HTLCStatus::Succeeded => "succeeded",
+ HTLCStatus::Failed => "failed"
+ });
+
+
+ println!("\t}},");
+ }
+ println!("]");
+}
+
+pub(crate) fn connect_peer_if_necessary(pubkey: PublicKey, peer_addr: SocketAddr, peer_manager:
+ Arc<PeerManager>, event_notifier: mpsc::Sender<()>, runtime: Handle) ->
+ Result<(), ()> {
+ for node_pubkey in peer_manager.get_peer_node_ids() {
+ if node_pubkey == pubkey {
+ return Ok(())
+ }
+ }
+ match TcpStream::connect_timeout(&peer_addr, Duration::from_secs(10)) {
Ok(stream) => {
- runtime.block_on(|| {
- lightning_net_tokio::setup_outbound(peer_manager,
- event_notifier,
- peer_pubkey,
- stream);
+ let peer_mgr = peer_manager.clone();
+ let event_ntfns = event_notifier.clone();
+ runtime.spawn(async move {
+ lightning_net_tokio::setup_outbound(peer_mgr, event_ntfns, pubkey, stream).await;
});
- match channel_manager.create_channel(peer_pubkey, channel_amt_sat, 0, 0, None) {
- Ok(_) => println!("SUCCESS: channel created! Mine some blocks to open it."),
- Err(e) => println!("ERROR: failed to open channel: {:?}", e)
+ let mut peer_connected = false;
+ while !peer_connected {
+ for node_pubkey in peer_manager.get_peer_node_ids() {
+ if node_pubkey == pubkey { peer_connected = true; }
+ }
}
},
- Err(e) => println!("ERROR: failed to connect to peer: {:?}", e)
+ Err(e) => {println!("ERROR: failed to connect to peer: {:?}", e);
+ return Err(())
+ }
+ }
+ Ok(())
+}
+
+fn open_channel(peer_pubkey: PublicKey, channel_amt_sat: u64, channel_manager: Arc<ChannelManager>)
+ -> Result<(), ()> {
+ let mut config = UserConfig::default();
+ // lnd's max to_self_delay is 2016, so we want to be compatible.
+ config.peer_channel_config_limits.their_to_self_delay = 2016;
+ match channel_manager.create_channel(peer_pubkey, channel_amt_sat, 0, 0, None) {
+ Ok(_) => {
+ println!("EVENT: initiated channel with peer {}. ", peer_pubkey);
+ return Ok(())
+ },
+ Err(e) => {
+ println!("ERROR: failed to open channel: {:?}", e);
+ return Err(())
+ }
+ }
+}
+
+fn send_payment(payee: PublicKey, amt_msat: u64, final_cltv: u32, payment_hash: PaymentHash,
+ payment_secret: Option<PaymentSecret>, payee_features:
+ Option<InvoiceFeatures>, router: Arc<NetGraphMsgHandler<Arc<dyn
+ chain::Access>, Arc<FilesystemLogger>>>, channel_manager:
+ Arc<ChannelManager>, payment_storage: PaymentInfoStorage, logger:
+ Arc<FilesystemLogger>) {
+ let network_graph = router.network_graph.read().unwrap();
+ let first_hops = channel_manager.list_usable_channels();
+ let payer_pubkey = channel_manager.get_our_node_id();
+
+ let route = router::get_route(&payer_pubkey, &network_graph, &payee, payee_features,
+ Some(&first_hops.iter().collect::<Vec<_>>()), &vec![], amt_msat,
+ final_cltv, logger);
+ if let Err(e) = route {
+ println!("ERROR: failed to find route: {}", e.err);
+ return
+ }
+ let status = match channel_manager.send_payment(&route.unwrap(), payment_hash, &payment_secret) {
+ Ok(()) => {
+ println!("EVENT: initiated sending {} msats to {}", amt_msat, payee);
+ HTLCStatus::Pending
+ },
+ Err(e) => {
+ println!("ERROR: failed to send payment: {:?}", e);
+ HTLCStatus::Failed
+ }
+ };
+ let mut payments = payment_storage.lock().unwrap();
+ payments.insert(payment_hash, (None, HTLCDirection::Outbound, status));
+}
+
+fn get_invoice(amt_sat: u64, payment_storage: PaymentInfoStorage, our_node_privkey: SecretKey,
+ channel_manager: Arc<ChannelManager>, router: Arc<NetGraphMsgHandler<Arc<dyn
+ chain::Access>, Arc<FilesystemLogger>>>) {
+ let mut payments = payment_storage.lock().unwrap();
+ let secp_ctx = Secp256k1::new();
+
+ let mut preimage = [0; 32];
+ rand::thread_rng().fill_bytes(&mut preimage);
+ let payment_hash = Sha256Hash::hash(&preimage);
+
+
+ let our_node_pubkey = channel_manager.get_our_node_id();
+ let invoice = lightning_invoice::InvoiceBuilder::new(match NETWORK {
+ Network::Bitcoin => lightning_invoice::Currency::Bitcoin,
+ Network::Testnet => lightning_invoice::Currency::BitcoinTestnet,
+ Network::Regtest => lightning_invoice::Currency::Regtest,
+ Network::Signet => panic!("Signet invoices not supported")
+ }).payment_hash(payment_hash).description("rust-lightning-bitcoinrpc invoice".to_string())
+ .amount_pico_btc(amt_sat * 10)
+ .current_timestamp()
+ .payee_pub_key(our_node_pubkey);
+
+ // Add route hints to the invoice.
+ // let our_channels = channel_manager.list_usable_channels();
+ // let network_graph = router.network_graph.read().unwrap();
+ // let network_channels = network_graph.get_channels();
+ // for channel in our_channels {
+ // let short_channel_id_opt = channel.short_channel_id;
+ // if short_channel_id_opt.is_none() {
+ // continue
+ // }
+
+ // let short_channel_id = short_channel_id_opt.unwrap();
+ // let channel_routing_info_opt = network_channels.get(&short_channel_id);
+ // if channel_routing_info_opt.is_none() {
+ // continue
+ // }
+
+ // let channel_routing_info = channel_routing_info_opt.unwrap();
+ // let mut counterparty = channel_routing_info.node_two;
+ // let mut counterparty_chan_fees_opt = channel_routing_info.one_to_two.as_ref();
+ // if channel_routing_info.node_two != our_node_pubkey { // e.g. if our counterparty is node_one
+ // counterparty = channel_routing_info.node_one;
+ // counterparty_chan_fees_opt = channel_routing_info.two_to_one.as_ref();
+ // }
+ // if counterparty_chan_fees_opt.is_none() {
+ // continue
+ // }
+
+ // let counterparty_chan_fees = counterparty_chan_fees_opt.unwrap();
+ // invoice = invoice.route(vec![
+ // lightning_invoice::RouteHop {
+ // short_channel_id: short_channel_id.to_be_bytes(),
+ // cltv_expiry_delta: counterparty_chan_fees.cltv_expiry_delta,
+ // fee_base_msat: counterparty_chan_fees.fees.base_msat,
+ // fee_proportional_millionths: counterparty_chan_fees.fees.proportional_millionths,
+ // pubkey: counterparty,
+ // }
+ // ]);
+ // }
+
+ // Sign the invoice.
+ let invoice = invoice.build_signed(|msg_hash| {
+ secp_ctx.sign_recoverable(msg_hash, &our_node_privkey)
+ });
+
+ match invoice {
+ Ok(invoice) => println!("SUCCESS: generated invoice: {}", invoice),
+ Err(e) => println!("ERROR: failed to create invoice: {:?}", e),
+ }
+
+ payments.insert(PaymentHash(payment_hash.into_inner()), (Some(PaymentPreimage(preimage)),
+ HTLCDirection::Inbound,
+ HTLCStatus::Pending));
+}
+
+fn close_channel(channel_id: [u8; 32], channel_manager: Arc<ChannelManager>) {
+ match channel_manager.close_channel(&channel_id) {
+ Ok(()) => println!("EVENT: initiating channel close"),
+ Err(e) => println!("ERROR: failed to close channel: {:?}", e)
+ }
+}
+
+fn force_close_channel(channel_id: [u8; 32], channel_manager: Arc<ChannelManager>) {
+ match channel_manager.force_close_channel(&channel_id) {
+ Ok(()) => println!("EVENT: initiating channel force-close"),
+ Err(e) => println!("ERROR: failed to force-close channel: {:?}", e)
+ }
+}
+
+pub(crate) fn parse_peer_info(peer_pubkey_and_ip_addr: String) -> Result<(PublicKey, SocketAddr), std::io::Error> {
+ let mut pubkey_and_addr = peer_pubkey_and_ip_addr.split("@");
+ let pubkey = pubkey_and_addr.next();
+ let peer_addr_str = pubkey_and_addr.next();
+ if peer_addr_str.is_none() || peer_addr_str.is_none() {
+ return Err(std::io::Error::new(std::io::ErrorKind::Other, "ERROR: incorrectly formatted peer
+ info. Should be formatted as: `pubkey@host:port`"));
+ }
+
+ let peer_addr: Result<SocketAddr, _> = peer_addr_str.unwrap().parse();
+ if peer_addr.is_err() {
+ return Err(std::io::Error::new(std::io::ErrorKind::Other, "ERROR: couldn't parse pubkey@host:port into a socket address"));
}
+
+ let pubkey = hex_utils::to_compressed_pubkey(pubkey.unwrap());
+ if pubkey.is_none() {
+ return Err(std::io::Error::new(std::io::ErrorKind::Other, "ERROR: unable to parse given pubkey for node"));
+ }
+
+ Ok((pubkey.unwrap(), peer_addr.unwrap()))
}
--- /dev/null
+use bitcoin::BlockHash;
+use bitcoin::hashes::hex::FromHex;
+use lightning_block_sync::http::JsonResponse;
+use std::convert::TryInto;
+
+pub struct FundedTx {
+ pub changepos: i64,
+ pub hex: String,
+}
+
+impl TryInto<FundedTx> for JsonResponse {
+ type Error = std::io::Error;
+ fn try_into(self) -> std::io::Result<FundedTx> {
+ Ok(FundedTx {
+ changepos: self.0["changepos"].as_i64().unwrap(),
+ hex: self.0["hex"].as_str().unwrap().to_string(),
+ })
+ }
+}
+
+pub struct RawTx(pub String);
+
+impl TryInto<RawTx> for JsonResponse {
+ type Error = std::io::Error;
+ fn try_into(self) -> std::io::Result<RawTx> {
+ Ok(RawTx(self.0.as_str().unwrap().to_string()))
+ }
+}
+
+pub struct SignedTx {
+ pub complete: bool,
+ pub hex: String,
+}
+
+impl TryInto<SignedTx> for JsonResponse {
+ type Error = std::io::Error;
+ fn try_into(self) -> std::io::Result<SignedTx> {
+ Ok(SignedTx {
+ hex: self.0["hex"].as_str().unwrap().to_string(),
+ complete: self.0["complete"].as_bool().unwrap(),
+ })
+ }
+}
+
+pub struct NewAddress(pub String);
+impl TryInto<NewAddress> for JsonResponse {
+ type Error = std::io::Error;
+ fn try_into(self) -> std::io::Result<NewAddress> {
+ Ok(NewAddress(self.0.as_str().unwrap().to_string()))
+ }
+}
+
+pub struct FeeResponse {
+ pub feerate: Option<u32>,
+ pub errored: bool,
+}
+
+impl TryInto<FeeResponse> for JsonResponse {
+ type Error = std::io::Error;
+ fn try_into(self) -> std::io::Result<FeeResponse> {
+ let errored = !self.0["errors"].is_null();
+ Ok(FeeResponse {
+ errored,
+ feerate: match errored {
+ true => None,
+ // The feerate from bitcoind is in BTC/kb, and we want satoshis/kb.
+ false => Some((self.0["feerate"].as_f64().unwrap() * 100_000_000.0).round() as u32)
+ }
+ })
+ }
+}
+
+pub struct BlockchainInfo {
+ pub latest_height: usize,
+ pub latest_blockhash: BlockHash,
+}
+
+impl TryInto<BlockchainInfo> for JsonResponse {
+ type Error = std::io::Error;
+ fn try_into(self) -> std::io::Result<BlockchainInfo> {
+ Ok(BlockchainInfo {
+ latest_height: self.0["blocks"].as_u64().unwrap() as usize,
+ latest_blockhash: BlockHash::from_hex(self.0["bestblockhash"].as_str().unwrap()).unwrap(),
+ })
+ }
+}
--- /dev/null
+use bitcoin::{BlockHash, Txid};
+use bitcoin::hashes::hex::FromHex;
+use bitcoin::secp256k1::key::PublicKey;
+use crate::cli;
+use lightning::chain::channelmonitor::ChannelMonitor;
+use lightning::chain::keysinterface::{InMemorySigner, KeysManager};
+use lightning::chain::transaction::OutPoint;
+use lightning::util::logger::{Logger, Record};
+use lightning::util::ser::{ReadableArgs, Writer};
+use std::collections::HashMap;
+use std::fs;
+use std::fs::File;
+// use std::io::{BufRead, BufReader, Cursor, Write};
+use std::io::{BufRead, BufReader, Cursor};
+use std::net::SocketAddr;
+use std::path::Path;
+use std::sync::Arc;
+use time::OffsetDateTime;
+
+pub(crate) struct FilesystemLogger{
+ data_dir: String
+}
+impl FilesystemLogger {
+ pub(crate) fn new(data_dir: String) -> Self {
+ let logs_path = format!("{}/logs", data_dir);
+ fs::create_dir_all(logs_path.clone()).unwrap();
+ Self {
+ data_dir: logs_path
+ }
+ }
+}
+impl Logger for FilesystemLogger {
+ fn log(&self, record: &Record) {
+ let raw_log = record.args.to_string();
+ let log = format!("{} {:<5} [{}:{}] {}\n", OffsetDateTime::now_utc().format("%F %T"),
+ record.level.to_string(), record.module_path, record.line, raw_log);
+ let logs_file_path = format!("{}/logs.txt", self.data_dir.clone());
+ fs::OpenOptions::new().create(true).append(true).open(logs_file_path).unwrap()
+ .write_all(log.as_bytes()).unwrap();
+ }
+}
+pub(crate) fn persist_channel_peer(path: &Path, peer_info: &str) -> std::io::Result<()> {
+ let mut file = fs::OpenOptions::new().create(true).append(true).open(path)?;
+ file.write_all(format!("{}\n", peer_info).as_bytes())
+}
+
+pub(crate) fn read_channel_peer_data(path: &Path) -> Result<HashMap<PublicKey, SocketAddr>, std::io::Error> {
+ let mut peer_data = HashMap::new();
+ if !Path::new(&path).exists() {
+ return Ok(HashMap::new())
+ }
+ let file = File::open(path)?;
+ let reader = BufReader::new(file);
+ for line in reader.lines() {
+ match cli::parse_peer_info(line.unwrap()) {
+ Ok((pubkey, socket_addr)) => {
+ peer_data.insert(pubkey, socket_addr);
+ },
+ Err(e) => return Err(e)
+ }
+ }
+ Ok(peer_data)
+}
+
+
+pub(crate) fn read_channelmonitors_from_disk(path: String, keys_manager: Arc<KeysManager>) ->
+ Result<HashMap<OutPoint, (BlockHash, ChannelMonitor<InMemorySigner>)>, std::io::Error>
+{
+ if !Path::new(&path).exists() {
+ return Ok(HashMap::new())
+ }
+ let mut outpoint_to_channelmonitor = HashMap::new();
+ for file_option in fs::read_dir(path).unwrap() {
+ let file = file_option.unwrap();
+ let owned_file_name = file.file_name();
+ let filename = owned_file_name.to_str();
+ if !filename.is_some() || !filename.unwrap().is_ascii() || filename.unwrap().len() < 65 {
+ return Err(std::io::Error::new(std::io::ErrorKind::Other, "Invalid ChannelMonitor file name"));
+ }
+
+ let txid = Txid::from_hex(filename.unwrap().split_at(64).0);
+ if txid.is_err() {
+ return Err(std::io::Error::new(std::io::ErrorKind::Other, "Invalid tx ID in filename"));
+ }
+
+ let index = filename.unwrap().split_at(65).1.split('.').next().unwrap().parse();
+ if index.is_err() {
+ return Err(std::io::Error::new(std::io::ErrorKind::Other, "Invalid tx index in filename"));
+ }
+
+ let contents = fs::read(&file.path())?;
+
+ if let Ok((blockhash, channel_monitor)) =
+ <(BlockHash, ChannelMonitor<InMemorySigner>)>::read(&mut Cursor::new(&contents),
+ &*keys_manager)
+ {
+ outpoint_to_channelmonitor.insert(OutPoint { txid: txid.unwrap(), index: index.unwrap() },
+ (blockhash, channel_monitor));
+ } else {
+ return Err(std::io::Error::new(std::io::ErrorKind::Other,
+ "Failed to deserialize ChannelMonitor"));
+ }
+ }
+ Ok(outpoint_to_channelmonitor)
+}
--- /dev/null
+use bitcoin::secp256k1::key::PublicKey;
+
+pub fn to_vec(hex: &str) -> Option<Vec<u8>> {
+ let mut out = Vec::with_capacity(hex.len() / 2);
+
+ let mut b = 0;
+ for (idx, c) in hex.as_bytes().iter().enumerate() {
+ b <<= 4;
+ match *c {
+ b'A'..=b'F' => b |= c - b'A' + 10,
+ b'a'..=b'f' => b |= c - b'a' + 10,
+ b'0'..=b'9' => b |= c - b'0',
+ _ => return None,
+ }
+ if (idx & 1) == 1 {
+ out.push(b);
+ b = 0;
+ }
+ }
+
+ Some(out)
+}
+
+#[inline]
+pub fn hex_str(value: &[u8]) -> String {
+ let mut res = String::with_capacity(64);
+ for v in value {
+ res += &format!("{:02x}", v);
+ }
+ res
+}
+
+pub fn to_compressed_pubkey(hex: &str) -> Option<PublicKey> {
+ let data = match to_vec(&hex[0..33*2]) {
+ Some(bytes) => bytes,
+ None => return None
+ };
+ match PublicKey::from_slice(&data) {
+ Ok(pk) => Some(pk),
+ Err(_) => None,
+ }
+}
mod bitcoind_client;
mod cli;
-mod utils;
+mod convert;
+mod disk;
+mod hex_utils;
use background_processor::BackgroundProcessor;
-use bitcoin::{BlockHash, Txid};
+use bitcoin::BlockHash;
use bitcoin::blockdata::constants::genesis_block;
use bitcoin::blockdata::transaction::Transaction;
use bitcoin::consensus::encode;
-use bitcoin::hashes::hex::FromHex;
+use bitcoin::hashes::Hash;
+use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::network::constants::Network;
use bitcoin::secp256k1::Secp256k1;
-use bitcoin::util::address::Address;
use bitcoin_bech32::WitnessProgram;
use crate::bitcoind_client::BitcoindClient;
+use crate::disk::FilesystemLogger;
use lightning::chain;
use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
use lightning::chain::chainmonitor::ChainMonitor;
-use lightning::chain::channelmonitor::ChannelMonitor;
use lightning::chain::Filter;
use lightning::chain::keysinterface::{InMemorySigner, KeysInterface, KeysManager};
use lightning::chain::transaction::OutPoint;
use lightning::chain::Watch;
use lightning::ln::channelmanager;
-use lightning::ln::channelmanager::{ChannelManagerReadArgs, PaymentHash, PaymentPreimage,
+use lightning::ln::channelmanager::{ChainParameters, ChannelManagerReadArgs, PaymentHash, PaymentPreimage,
SimpleArcChannelManager};
use lightning::ln::peer_handler::{MessageHandler, SimpleArcPeerManager};
use lightning::util::config::UserConfig;
use lightning::util::events::{Event, EventsProvider};
-use lightning::util::logger::{Logger, Record};
-use lightning::util::ser::{ReadableArgs, Writer};
+use lightning::util::ser::ReadableArgs;
use lightning_block_sync::UnboundedCache;
use lightning_block_sync::SpvClient;
-use lightning_block_sync::http::HttpEndpoint;
use lightning_block_sync::init;
use lightning_block_sync::poll;
-use lightning_block_sync::poll::{ChainTip, Poll};
-use lightning_block_sync::rpc::RpcClient;
use lightning_net_tokio::SocketDescriptor;
use lightning_persister::FilesystemPersister;
use rand::{thread_rng, Rng};
use lightning::routing::network_graph::NetGraphMsgHandler;
-use std::cell::RefCell;
use std::collections::HashMap;
use std::fs;
use std::fs::File;
-use std::io::Cursor;
+use std::io;
+use std::io:: Write;
use std::path::Path;
-use std::str::FromStr;
use std::sync::{Arc, Mutex};
use std::thread;
use std::time::{Duration, SystemTime};
-use time::OffsetDateTime;
use tokio::runtime::Runtime;
use tokio::sync::mpsc;
-const NETWORK: Network = Network::Regtest;
-
-pub struct FilesystemLogger{}
-impl Logger for FilesystemLogger {
- fn log(&self, record: &Record) {
- let raw_log = record.args.to_string();
- let log = format!("{} {:<5} [{}:{}] {}", OffsetDateTime::now_utc().format("%F %T"),
- record.level.to_string(), record.module_path, record.line, raw_log);
- fs::create_dir_all("logs").unwrap();
- fs::OpenOptions::new().create(true).append(true).open("./logs/logs.txt").unwrap()
- .write_all(log.as_bytes()).unwrap();
- }
-}
-
-fn read_channelmonitors_from_disk(path: String, keys_manager: Arc<KeysManager>) ->
- Result<HashMap<OutPoint, (BlockHash, ChannelMonitor<InMemorySigner>)>, std::io::Error>
-{
- if !Path::new(&path).exists() {
- return Ok(HashMap::new())
- }
- let mut outpoint_to_channelmonitor = HashMap::new();
- for file_option in fs::read_dir(path).unwrap() {
- let file = file_option.unwrap();
- let owned_file_name = file.file_name();
- let filename = owned_file_name.to_str();
- if !filename.is_some() || !filename.unwrap().is_ascii() || filename.unwrap().len() < 65 {
- return Err(std::io::Error::new(std::io::ErrorKind::Other, "Invalid ChannelMonitor file name"));
- }
-
- let txid = Txid::from_hex(filename.unwrap().split_at(64).0);
- if txid.is_err() {
- return Err(std::io::Error::new(std::io::ErrorKind::Other, "Invalid tx ID in filename"));
- }
-
- let index = filename.unwrap().split_at(65).1.split('.').next().unwrap().parse();
- if index.is_err() {
- return Err(std::io::Error::new(std::io::ErrorKind::Other, "Invalid tx index in filename"));
- }
+pub(crate) const NETWORK: Network = Network::Regtest;
- let contents = fs::read(&file.path())?;
-
- if let Ok((blockhash, channel_monitor)) =
- <(BlockHash, ChannelMonitor<InMemorySigner>)>::read(&mut Cursor::new(&contents),
- &*keys_manager)
- {
- outpoint_to_channelmonitor.insert(OutPoint { txid: txid.unwrap(), index: index.unwrap() },
- (blockhash, channel_monitor));
- } else {
- return Err(std::io::Error::new(std::io::ErrorKind::Other,
- "Failed to deserialize ChannelMonitor"));
- }
- }
- Ok(outpoint_to_channelmonitor)
-}
-
-type Invoice = String;
-
-enum HTLCDirection {
+#[derive(PartialEq)]
+pub(crate) enum HTLCDirection {
Inbound,
Outbound
}
-type PaymentInfoStorage = Arc<Mutex<HashMap<PaymentHash, (Invoice, Option<PaymentPreimage>, HTLCDirection)>>>;
+pub(crate) enum HTLCStatus {
+ Pending,
+ Succeeded,
+ Failed,
+}
+
+pub(crate) type PaymentInfoStorage = Arc<Mutex<HashMap<PaymentHash, (Option<PaymentPreimage>,
+ HTLCDirection, HTLCStatus)>>>;
type ArcChainMonitor = ChainMonitor<InMemorySigner, Arc<dyn Filter>, Arc<BitcoindClient>,
Arc<BitcoindClient>, Arc<FilesystemLogger>, Arc<FilesystemPersister>>;
pub(crate) type ChannelManager = SimpleArcChannelManager<ArcChainMonitor, BitcoindClient, BitcoindClient,
FilesystemLogger>;
-
fn handle_ldk_events(peer_manager: Arc<PeerManager>, channel_manager: Arc<ChannelManager>,
- chain_monitor: Arc<ArcChainMonitor>, bitcoind_rpc_client: Arc<BitcoindClient>,
- keys_manager: Arc<KeysManager>, mut pending_txs: HashMap<OutPoint, Transaction>,
- htlcs: PaymentInfoStorage) -> HashMap<OutPoint, Transaction>
+ chain_monitor: Arc<ArcChainMonitor>, bitcoind_client: Arc<BitcoindClient>,
+ keys_manager: Arc<KeysManager>, payment_storage: PaymentInfoStorage)
{
- peer_manager.process_events();
- let mut check_for_more_events = true;
- while check_for_more_events {
+ let mut pending_txs: HashMap<OutPoint, Transaction> = HashMap::new();
+ loop {
+ peer_manager.process_events();
let loop_channel_manager = channel_manager.clone();
- check_for_more_events = false;
let mut events = channel_manager.get_and_clear_pending_events();
events.append(&mut chain_monitor.get_and_clear_pending_events());
- let mut rpc = bitcoind_rpc_client.bitcoind_rpc_client.lock().unwrap();
for event in events {
match event {
Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis,
output_script, .. } => {
+ // Construct the raw transaction with one output, that is paid the amount of the
+ // channel.
let addr = WitnessProgram::from_scriptpubkey(&output_script[..], match NETWORK {
Network::Bitcoin => bitcoin_bech32::constants::Network::Bitcoin,
Network::Testnet => bitcoin_bech32::constants::Network::Testnet,
Network::Regtest => bitcoin_bech32::constants::Network::Regtest,
+ Network::Signet => panic!("Signet unsupported"),
}
).expect("Lightning funding tx should always be to a SegWit output").to_address();
- let outputs = format!("{{\"{}\": {}}}", addr, channel_value_satoshis as f64 / 1_000_000_00.0).to_string();
- let tx_hex = rpc.call_method("createrawtransaction", &vec![serde_json::json!(outputs)]).unwrap();
- let raw_tx = format!("\"{}\"", tx_hex.as_str().unwrap()).to_string();
- let funded_tx = rpc.call_method("fundrawtransaction", &vec![serde_json::json!(raw_tx)]).unwrap();
- let change_output_position = funded_tx["changepos"].as_i64().unwrap();
+ let mut outputs = vec![HashMap::with_capacity(1)];
+ outputs[0].insert(addr, channel_value_satoshis as f64 / 100_000_000.0);
+ let raw_tx = bitcoind_client.create_raw_transaction(outputs);
+
+ // Have your wallet put the inputs into the transaction such that the output is
+ // satisfied.
+ let funded_tx = bitcoind_client.fund_raw_transaction(raw_tx);
+ let change_output_position = funded_tx.changepos;
assert!(change_output_position == 0 || change_output_position == 1);
- let funded_tx = format!("\"{}\"", funded_tx["hex"].as_str().unwrap()).to_string();
- let signed_tx = rpc.call_method("signrawtransactionwithwallet",
- &vec![serde_json::json!(funded_tx)]).unwrap();
- assert_eq!(signed_tx["complete"].as_bool().unwrap(), true);
- let final_tx: Transaction = encode::deserialize(&utils::hex_to_vec(&signed_tx["hex"].as_str().unwrap()).unwrap()).unwrap();
+
+ // Sign the final funding transaction and broadcast it.
+ let signed_tx = bitcoind_client.sign_raw_transaction_with_wallet(funded_tx.hex);
+ assert_eq!(signed_tx.complete, true);
+ let final_tx: Transaction = encode::deserialize(&hex_utils::to_vec(&signed_tx.hex).unwrap()).unwrap();
let outpoint = OutPoint {
txid: final_tx.txid(),
index: if change_output_position == 0 { 1 } else { 0 }
};
- loop_channel_manager.funding_transaction_generated(&temporary_channel_id, outpoint);
+ loop_channel_manager.funding_transaction_generated(&temporary_channel_id,
+ outpoint);
pending_txs.insert(outpoint, final_tx);
- check_for_more_events = true;
},
Event::FundingBroadcastSafe { funding_txo, .. } => {
let funding_tx = pending_txs.remove(&funding_txo).unwrap();
- bitcoind_rpc_client.broadcast_transaction(&funding_tx);
+ bitcoind_client.broadcast_transaction(&funding_tx);
+ println!("\nEVENT: broadcasted funding transaction");
+ print!("> "); io::stdout().flush().unwrap();
},
Event::PaymentReceived { payment_hash, payment_secret, amt: amt_msat } => {
- let payment_info = htlcs.lock().unwrap();
- if let Some(htlc_info) = payment_info.get(&payment_hash) {
- assert!(loop_channel_manager.claim_funds(htlc_info.1.unwrap().clone(),
- &payment_secret, amt_msat));
+ let mut payments = payment_storage.lock().unwrap();
+ if let Some((Some(preimage), _, _)) = payments.get(&payment_hash) {
+ assert!(loop_channel_manager.claim_funds(preimage.clone(), &payment_secret,
+ amt_msat));
+ println!("\nEVENT: received payment from payment_hash {} of {} satoshis",
+ hex_utils::hex_str(&payment_hash.0), amt_msat / 1000);
+ print!("> "); io::stdout().flush().unwrap();
+ let (_, _, ref mut status) = payments.get_mut(&payment_hash).unwrap();
+ *status = HTLCStatus::Succeeded;
} else {
+ println!("\nERROR: we received a payment but didn't know the preimage");
+ print!("> "); io::stdout().flush().unwrap();
loop_channel_manager.fail_htlc_backwards(&payment_hash, &payment_secret);
+ payments.insert(payment_hash, (None, HTLCDirection::Inbound, HTLCStatus::Failed));
}
- check_for_more_events = true;
},
Event::PaymentSent { payment_preimage } => {
- let payment_info = htlcs.lock().unwrap();
- for (invoice, preimage_option, _) in payment_info.values() {
- if let Some(preimage) = preimage_option {
- if payment_preimage == *preimage {
- println!("NEW EVENT: successfully sent payment from invoice {} with preimage {}",
- invoice, utils::hex_str(&payment_preimage.0));
- }
+ let hashed = PaymentHash(Sha256::hash(&payment_preimage.0).into_inner());
+ let mut payments = payment_storage.lock().unwrap();
+ for (payment_hash, (preimage_option, _, status)) in payments.iter_mut() {
+ if *payment_hash == hashed {
+ *preimage_option = Some(payment_preimage);
+ *status = HTLCStatus::Succeeded;
+ println!("\nNEW EVENT: successfully sent payment from payment hash \
+ {:?} with preimage {:?}", hex_utils::hex_str(&payment_hash.0),
+ hex_utils::hex_str(&payment_preimage.0));
+ print!("> "); io::stdout().flush().unwrap();
}
}
},
- Event::PaymentFailed { payment_hash, rejected_by_dest } => {
- let payment_info = htlcs.lock().unwrap();
- let htlc_info = payment_info.get(&payment_hash).unwrap();
- print!("NEW EVENT: Failed to send payment to invoice {}:", htlc_info.0);
+ Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
+ print!("\nNEW EVENT: Failed to send payment to payment hash {:?}: ",
+ hex_utils::hex_str(&payment_hash.0));
if rejected_by_dest {
println!("rejected by destination node");
} else {
println!("route failed");
+ }
+ print!("> "); io::stdout().flush().unwrap();
+
+ let mut payments = payment_storage.lock().unwrap();
+ if payments.contains_key(&payment_hash) {
+ let (_, _, ref mut status) = payments.get_mut(&payment_hash).unwrap();
+ *status = HTLCStatus::Failed;
}
},
Event::PendingHTLCsForwardable { .. } => {
loop_channel_manager.process_pending_htlc_forwards();
- check_for_more_events = true;
},
Event::SpendableOutputs { outputs } => {
- let addr_args = vec![serde_json::json!("LDK output address")];
- let destination_address_str = rpc.call_method("getnewaddress", &addr_args).unwrap();
- let destination_address = Address::from_str(destination_address_str.as_str().unwrap()).unwrap();
+ let destination_address = bitcoind_client.get_new_address();
let output_descriptors = &outputs.iter().map(|a| a).collect::<Vec<_>>();
- let tx_feerate = bitcoind_rpc_client.get_est_sat_per_1000_weight(ConfirmationTarget::Normal);
+ let tx_feerate = bitcoind_client.get_est_sat_per_1000_weight(ConfirmationTarget::Normal);
let spending_tx = keys_manager.spend_spendable_outputs(output_descriptors,
Vec::new(),
destination_address.script_pubkey(),
tx_feerate, &Secp256k1::new()).unwrap();
- bitcoind_rpc_client.broadcast_transaction(&spending_tx);
+ bitcoind_client.broadcast_transaction(&spending_tx);
// XXX maybe need to rescan and blah? but contrary to what matt's saying, it
// looks like spend_spendable's got us covered
}
}
}
+ thread::sleep(Duration::new(1, 0));
}
- pending_txs
}
fn main() {
- let bitcoind_host = "127.0.0.1".to_string();
- let bitcoind_port = 18443;
- let rpc_user = "polaruser".to_string();
- let rpc_password = "polarpass".to_string();
- let bitcoind_client = Arc::new(BitcoindClient::new(bitcoind_host.clone(), bitcoind_port, None,
- rpc_user.clone(), rpc_password.clone()).unwrap());
+ let args = match cli::parse_startup_args() {
+ Ok(user_args) => user_args,
+ Err(()) => return
+ };
+
+ // Initialize the LDK data directory if necessary.
+ let ldk_data_dir = format!("{}/.ldk", args.ldk_storage_dir_path);
+ fs::create_dir_all(ldk_data_dir.clone()).unwrap();
+
+ // Initialize our bitcoind client.
+ let bitcoind_client = Arc::new(BitcoindClient::new(args.bitcoind_rpc_host.clone(),
+ args.bitcoind_rpc_port,
+ args.bitcoind_rpc_username.clone(),
+ args.bitcoind_rpc_password.clone()).unwrap());
+ let mut bitcoind_rpc_client = bitcoind_client.get_new_rpc_client().unwrap();
// ## Setup
// Step 1: Initialize the FeeEstimator
+
+ // BitcoindClient implements the FeeEstimator trait, so it'll act as our fee estimator.
let fee_estimator = bitcoind_client.clone();
// Step 2: Initialize the Logger
- let logger = Arc::new(FilesystemLogger{});
+ let logger = Arc::new(FilesystemLogger::new(ldk_data_dir.clone()));
// Step 3: Initialize the BroadcasterInterface
+
+ // BitcoindClient implements the BroadcasterInterface trait, so it'll act as our transaction
+ // broadcaster.
let broadcaster = bitcoind_client.clone();
// Step 4: Initialize Persist
- let persister = Arc::new(FilesystemPersister::new(".".to_string()));
+ let persister = Arc::new(FilesystemPersister::new(ldk_data_dir.clone()));
// Step 5: Initialize the ChainMonitor
let chain_monitor: Arc<ArcChainMonitor> = Arc::new(ChainMonitor::new(None, broadcaster.clone(),
persister.clone()));
// Step 6: Initialize the KeysManager
- let node_privkey = if let Ok(seed) = fs::read("./key_seed") { // the private key that corresponds
- assert_eq!(seed.len(), 32); // to our lightning node's pubkey
+
+ // The key seed that we use to derive the node privkey (that corresponds to the node pubkey) and
+ // other secret key material.
+ let keys_seed_path = format!("{}/keys_seed", ldk_data_dir.clone());
+ let keys_seed = if let Ok(seed) = fs::read(keys_seed_path.clone()) {
+ assert_eq!(seed.len(), 32);
let mut key = [0; 32];
key.copy_from_slice(&seed);
key
} else {
let mut key = [0; 32];
thread_rng().fill_bytes(&mut key);
- let mut f = File::create("./key_seed").unwrap();
- f.write_all(&key).expect("Failed to write seed to disk");
- f.sync_all().expect("Failed to sync seed to disk");
+ let mut f = File::create(keys_seed_path).unwrap();
+ f.write_all(&key).expect("Failed to write node keys seed to disk");
+ f.sync_all().expect("Failed to sync node keys seed to disk");
key
};
let cur = SystemTime::now().duration_since(SystemTime::UNIX_EPOCH).unwrap();
- let keys_manager = Arc::new(KeysManager::new(&node_privkey, cur.as_secs(), cur.subsec_nanos()));
+ let keys_manager = Arc::new(KeysManager::new(&keys_seed, cur.as_secs(), cur.subsec_nanos()));
// Step 7: Read ChannelMonitor state from disk
- let mut outpoint_to_channelmonitor = read_channelmonitors_from_disk("./monitors".to_string(),
- keys_manager.clone()).unwrap();
+ let monitors_path = format!("{}/monitors", ldk_data_dir.clone());
+ let mut outpoint_to_channelmonitor = disk::read_channelmonitors_from_disk(monitors_path.to_string(),
+ keys_manager.clone()).unwrap();
- // Step 9: Read ChannelManager state from disk
+ // Step 9: Initialize the ChannelManager
let user_config = UserConfig::default();
- let mut channel_manager: ChannelManager;
- let mut channel_manager_last_blockhash: Option<BlockHash> = None;
- if let Ok(mut f) = fs::File::open("./manager") {
- let (last_block_hash_option, channel_manager_from_disk) = {
+ let runtime = Runtime::new().unwrap();
+ let mut restarting_node = true;
+ let (channel_manager_blockhash, mut channel_manager) = {
+ if let Ok(mut f) = fs::File::open(format!("{}/manager", ldk_data_dir.clone())) {
let mut channel_monitor_mut_references = Vec::new();
for (_, channel_monitor) in outpoint_to_channelmonitor.iter_mut() {
channel_monitor_mut_references.push(&mut channel_monitor.1);
chain_monitor.clone(), broadcaster.clone(),
logger.clone(), user_config,
channel_monitor_mut_references);
- <(Option<BlockHash>, ChannelManager)>::read(&mut f, read_args).unwrap()
- };
- channel_manager = channel_manager_from_disk;
- channel_manager_last_blockhash = last_block_hash_option;
- } else {
- let mut bitcoind_rpc_client = bitcoind_client.bitcoind_rpc_client.lock().unwrap();
- let current_chain_height: usize = bitcoind_rpc_client
- .call_method("getblockchaininfo", &vec![]).unwrap()["blocks"].as_u64().unwrap() as usize;
- channel_manager = channelmanager::ChannelManager::new(Network::Regtest, fee_estimator.clone(),
- chain_monitor.clone(), broadcaster.clone(),
- logger.clone(), keys_manager.clone(),
- user_config, current_chain_height);
- }
+ <(BlockHash, ChannelManager)>::read(&mut f, read_args).unwrap()
+ } else { // We're starting a fresh node.
+ restarting_node = false;
+ let getinfo_resp = bitcoind_client.get_blockchain_info();
+ let chain_params = ChainParameters {
+ network: NETWORK,
+ latest_hash: getinfo_resp.latest_blockhash,
+ latest_height: getinfo_resp.latest_height,
+ };
+ let fresh_channel_manager = channelmanager::ChannelManager::new(fee_estimator.clone(),
+ chain_monitor.clone(),
+ broadcaster.clone(),
+ logger.clone(),
+ keys_manager.clone(),
+ user_config, chain_params);
+ (getinfo_resp.latest_blockhash, fresh_channel_manager)
+ }
+ };
- // Step 10: Sync ChannelMonitors to chain tip if restarting
- let mut chain_tip = None;
+ // Step 10: Sync ChannelMonitors and ChannelManager to chain tip
let mut chain_listener_channel_monitors = Vec::new();
let mut cache = UnboundedCache::new();
- let rpc_credentials = base64::encode(format!("{}:{}", rpc_user, rpc_password));
- let mut block_source = RpcClient::new(&rpc_credentials, HttpEndpoint::for_host(bitcoind_host)
- .with_port(bitcoind_port)).unwrap();
- let runtime = Runtime::new().expect("Unable to create a runtime");
- if outpoint_to_channelmonitor.len() > 0 {
+ let mut chain_tip: Option<poll::ValidatedBlockHeader> = None;
+ if restarting_node {
+ let mut chain_listeners = vec![
+ (channel_manager_blockhash, &mut channel_manager as &mut dyn chain::Listen)];
+
for (outpoint, blockhash_and_monitor) in outpoint_to_channelmonitor.drain() {
let blockhash = blockhash_and_monitor.0;
let channel_monitor = blockhash_and_monitor.1;
- chain_listener_channel_monitors.push((blockhash, (RefCell::new(channel_monitor),
+ chain_listener_channel_monitors.push((blockhash, (channel_monitor,
broadcaster.clone(), fee_estimator.clone(),
logger.clone()), outpoint));
}
- let mut chain_listeners = Vec::new();
for monitor_listener_info in chain_listener_channel_monitors.iter_mut() {
chain_listeners.push((monitor_listener_info.0,
&mut monitor_listener_info.1 as &mut dyn chain::Listen));
}
- // Because `sync_listeners` is an async function and we want to run it synchronously,
- // we run it in a tokio Runtime.
- chain_tip = Some(runtime.block_on(init::sync_listeners(&mut block_source, Network::Regtest,
- &mut cache, chain_listeners)).unwrap());
+ chain_tip = Some(runtime.block_on(init::synchronize_listeners(&mut bitcoind_rpc_client, NETWORK,
+ &mut cache, chain_listeners)).unwrap());
}
// Step 11: Give ChannelMonitors to ChainMonitor
- if chain_listener_channel_monitors.len() > 0 {
- for item in chain_listener_channel_monitors.drain(..) {
- let channel_monitor = item.1.0.into_inner();
- let funding_outpoint = item.2;
- chain_monitor.watch_channel(funding_outpoint, channel_monitor).unwrap();
- }
- }
-
- // Step 12: Sync ChannelManager to chain tip if restarting
- if let Some(channel_manager_blockhash) = channel_manager_last_blockhash {
- let chain_listener = vec![
- (channel_manager_blockhash, &mut channel_manager as &mut dyn chain::Listen)];
- chain_tip = Some(runtime.block_on(init::sync_listeners(&mut block_source, Network::Regtest,
- &mut cache, chain_listener)).unwrap());
+ for item in chain_listener_channel_monitors.drain(..) {
+ let channel_monitor = item.1.0;
+ let funding_outpoint = item.2;
+ chain_monitor.watch_channel(funding_outpoint, channel_monitor).unwrap();
}
// Step 13: Optional: Initialize the NetGraphMsgHandler
// XXX persist routing data
- let genesis = genesis_block(Network::Regtest).header.block_hash();
+ let genesis = genesis_block(NETWORK).header.block_hash();
let router = Arc::new(NetGraphMsgHandler::new(genesis, None::<Arc<dyn chain::Access>>, logger.clone()));
// Step 14: Initialize the PeerManager
- let channel_manager = Arc::new(channel_manager);
+ let channel_manager: Arc<ChannelManager> = Arc::new(channel_manager);
let mut ephemeral_bytes = [0; 32];
rand::thread_rng().fill_bytes(&mut ephemeral_bytes);
let lightning_msg_handler = MessageHandler { chan_handler: channel_manager.clone(),
&ephemeral_bytes, logger.clone()));
// ## Running LDK
- // Step 15: Initialize LDK Event Handling
- let (event_ntfn_sender, mut event_ntfn_receiver) = mpsc::channel(2);
- let peer_manager_event_listener = peer_manager.clone();
- let channel_manager_event_listener = channel_manager.clone();
- let chain_monitor_event_listener = chain_monitor.clone();
- let payment_info: PaymentInfoStorage = Arc::new(Mutex::new(HashMap::new()));
- let payment_info_for_events = payment_info.clone();
- thread::spawn(move || async move {
- let mut pending_txs = HashMap::new();
- loop {
- event_ntfn_receiver.recv().await.unwrap();
- pending_txs = handle_ldk_events(peer_manager_event_listener.clone(),
- channel_manager_event_listener.clone(),
- chain_monitor_event_listener.clone(),
- bitcoind_client.clone(), keys_manager.clone(),
- pending_txs, payment_info_for_events.clone());
- }
- });
-
// Step 16: Initialize Peer Connection Handling
+
+ // We poll for events in handle_ldk_events(..) rather than waiting for them over the
+ // mpsc::channel, so we can leave the event receiver as unused.
+ let (event_ntfn_sender, mut _event_ntfn_receiver) = mpsc::channel(2);
let peer_manager_connection_handler = peer_manager.clone();
let event_notifier = event_ntfn_sender.clone();
- thread::spawn(move || async move {
- let listener = std::net::TcpListener::bind("0.0.0.0:9735").unwrap();
+ let listening_port = args.ldk_peer_listening_port;
+ runtime.spawn(async move {
+ let listener = std::net::TcpListener::bind(format!("0.0.0.0:{}", listening_port)).unwrap();
loop {
let tcp_stream = listener.accept().unwrap().0;
lightning_net_tokio::setup_inbound(peer_manager_connection_handler.clone(),
});
// Step 17: Connect and Disconnect Blocks
- let mut chain_poller = poll::ChainPoller::new(&mut block_source, Network::Regtest);
if chain_tip.is_none() {
- match runtime.block_on(chain_poller.poll_chain_tip(None)).unwrap() {
- ChainTip::Better(header) => chain_tip = Some(header),
- _ => panic!("Unexpected chain tip")
- }
+ chain_tip = Some(runtime.block_on(init::validate_best_block_header(&mut bitcoind_rpc_client)).unwrap());
}
- let chain_listener = (chain_monitor.clone(), channel_manager.clone());
- let _spv_client = SpvClient::new(chain_tip.unwrap(), chain_poller, &mut cache, &chain_listener);
+ let channel_manager_listener = channel_manager.clone();
+ let chain_monitor_listener = chain_monitor.clone();
+ runtime.spawn(async move {
+ let chain_poller = poll::ChainPoller::new(&mut bitcoind_rpc_client, NETWORK);
+ let chain_listener = (chain_monitor_listener, channel_manager_listener);
+ let mut spv_client = SpvClient::new(chain_tip.unwrap(), chain_poller, &mut cache,
+ &chain_listener);
+ loop {
+ spv_client.poll_best_tip().await.unwrap();
+ thread::sleep(Duration::new(1, 0));
+ }
+ });
// Step 17 & 18: Initialize ChannelManager persistence & Once Per Minute: ChannelManager's
// timer_chan_freshness_every_min() and PeerManager's timer_tick_occurred
+ let runtime_handle = runtime.handle();
+ let data_dir = ldk_data_dir.clone();
let persist_channel_manager_callback = move |node: &ChannelManager| {
- FilesystemPersister::persist_manager("./".to_string(), &*node)
+ FilesystemPersister::persist_manager(data_dir.clone(), &*node)
};
- BackgroundProcessor::start(persist_channel_manager_callback, channel_manager.clone(), logger.clone());
+ BackgroundProcessor::start(persist_channel_manager_callback, channel_manager.clone(),
+ logger.clone());
+
let peer_manager_processor = peer_manager.clone();
- thread::spawn(move || {
+ runtime_handle.spawn(async move {
loop {
- peer_manager_processor.timer_tick_occured();
+ peer_manager_processor.timer_tick_occurred();
thread::sleep(Duration::new(60, 0));
}
});
- cli::poll_for_user_input(peer_manager.clone(), channel_manager.clone(), event_ntfn_sender.clone());
+
+ // Step 15: Initialize LDK Event Handling
+ let peer_manager_event_listener = peer_manager.clone();
+ let channel_manager_event_listener = channel_manager.clone();
+ let chain_monitor_event_listener = chain_monitor.clone();
+ let keys_manager_listener = keys_manager.clone();
+ let payment_info: PaymentInfoStorage = Arc::new(Mutex::new(HashMap::new()));
+ let payment_info_for_events = payment_info.clone();
+ let handle = runtime_handle.clone();
+ thread::spawn(move || {
+ handle_ldk_events(peer_manager_event_listener, channel_manager_event_listener,
+ chain_monitor_event_listener, bitcoind_client.clone(),
+ keys_manager_listener, payment_info_for_events);
+ });
+
+ // Reconnect to channel peers if possible.
+ let peer_data_path = format!("{}/channel_peer_data", ldk_data_dir.clone());
+ match disk::read_channel_peer_data(Path::new(&peer_data_path)) {
+ Ok(mut info) => {
+ for (pubkey, peer_addr) in info.drain() {
+ let _ = cli::connect_peer_if_necessary(pubkey, peer_addr, peer_manager.clone(),
+ event_ntfn_sender.clone(), handle.clone());
+ }
+ },
+ Err(e) => println!("ERROR: errored reading channel peer info from disk: {:?}", e),
+ }
+
+ // Start the CLI.
+ cli::poll_for_user_input(peer_manager.clone(), channel_manager.clone(), router.clone(),
+ payment_info, keys_manager.get_node_secret(), event_ntfn_sender,
+ ldk_data_dir.clone(), logger.clone(), handle);
}
+++ /dev/null
-use bitcoin::secp256k1::key::PublicKey;
-
-pub fn hex_to_vec(hex: &str) -> Option<Vec<u8>> {
- let mut out = Vec::with_capacity(hex.len() / 2);
-
- let mut b = 0;
- for (idx, c) in hex.as_bytes().iter().enumerate() {
- b <<= 4;
- match *c {
- b'A'..=b'F' => b |= c - b'A' + 10,
- b'a'..=b'f' => b |= c - b'a' + 10,
- b'0'..=b'9' => b |= c - b'0',
- _ => return None,
- }
- if (idx & 1) == 1 {
- out.push(b);
- b = 0;
- }
- }
-
- Some(out)
-}
-
-#[inline]
-pub fn hex_str(value: &[u8]) -> String {
- let mut res = String::with_capacity(64);
- for v in value {
- res += &format!("{:02x}", v);
- }
- res
-}
-
-pub fn hex_to_compressed_pubkey(hex: &str) -> Option<PublicKey> {
- let data = match hex_to_vec(&hex[0..33*2]) {
- Some(bytes) => bytes,
- None => return None
- };
- match PublicKey::from_slice(&data) {
- Ok(pk) => Some(pk),
- Err(_) => None,
- }
-}
projects / ldk-sample / commitdiff