+use crate::convert::{BlockchainInfo, FeeResponse, FundedTx, NewAddress, RawTx, SignedTx};
use base64;
-use serde_json;
-
use bitcoin::blockdata::transaction::Transaction;
use bitcoin::consensus::encode;
+use bitcoin::util::address::Address;
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) ->
- 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 bitcoind_rpc_client = RpcClient::new(&rpc_credentials, http_endpoint)?;
- Ok(Self {
- bitcoind_rpc_client: Mutex::new(bitcoind_rpc_client)
- })
- }
+ pub fn new(
+ host: String, port: u16, rpc_user: String, rpc_password: String,
+ ) -> std::io::Result<Self> {
+ 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)?;
+ let client = Self {
+ bitcoind_rpc_client: Mutex::new(bitcoind_rpc_client),
+ host,
+ port,
+ rpc_user,
+ rpc_password,
+ runtime: Mutex::new(Runtime::new().unwrap()),
+ };
+ 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
- },
- }
- }
+ fn get_est_sat_per_1000_weight(&self, confirmation_target: ConfirmationTarget) -> 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),
+ };
+
+ // This function may be called from a tokio runtime, or not. So we need to check before
+ // making the call to avoid the error "cannot run a tokio runtime from within a tokio runtime".
+ 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 tx_serialized = serde_json::json!(encode::serialize_hex(tx));
- rpc_client_guard.call_method("sendrawtransaction", &vec![tx_serialized]).unwrap();
- }
+ fn broadcast_transaction(&self, tx: &Transaction) {
+ 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));
+ // This function may be called from a tokio runtime, or not. So we need to check before
+ // making the call to avoid the error "cannot run a tokio runtime from within a tokio runtime".
+ 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();
+ }
+ }
+ }
}
projects / ldk-sample / blobdiff