297 lines
10 KiB
Rust
297 lines
10 KiB
Rust
use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation};
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use rand::seq::IndexedRandom;
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use reqwest::Client;
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use std::{sync::Arc, time::Instant};
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use crate::swqos::SwqosClientTrait;
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use crate::swqos::{SwqosType, TradeType};
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use anyhow::Result;
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use bincode::serialize as bincode_serialize;
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use solana_sdk::transaction::VersionedTransaction;
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use std::time::Duration;
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use crate::{common::SolanaRpcClient, constants::swqos::LUNARLANDER_TIP_ACCOUNTS};
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use std::sync::atomic::{AtomicBool, Ordering};
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use tokio::task::JoinHandle;
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use lunar_lander_quic_client::{ClientOptions, LunarLanderQuicClient};
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#[derive(Clone)]
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pub enum LunarLanderBackend {
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Http {
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endpoint: String,
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auth_token: String,
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http_client: Client,
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ping_handle: Arc<tokio::sync::Mutex<Option<JoinHandle<()>>>>,
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stop_ping: Arc<AtomicBool>,
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},
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Quic(Arc<LunarLanderQuicClient>),
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}
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#[derive(Clone)]
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pub struct LunarLanderClient {
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pub rpc_client: Arc<SolanaRpcClient>,
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backend: LunarLanderBackend,
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}
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#[async_trait::async_trait]
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impl SwqosClientTrait for LunarLanderClient {
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async fn send_transaction(
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&self,
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trade_type: TradeType,
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transaction: &VersionedTransaction,
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wait_confirmation: bool,
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) -> Result<()> {
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self.send_transaction_impl(trade_type, transaction, wait_confirmation).await
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}
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async fn send_transactions(
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&self,
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trade_type: TradeType,
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transactions: &Vec<VersionedTransaction>,
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wait_confirmation: bool,
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) -> Result<()> {
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for transaction in transactions {
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self.send_transaction_impl(trade_type, transaction, wait_confirmation).await?;
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}
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Ok(())
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}
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fn get_tip_account(&self) -> Result<String> {
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let tip_account = *LUNARLANDER_TIP_ACCOUNTS
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.choose(&mut rand::rng())
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.or_else(|| LUNARLANDER_TIP_ACCOUNTS.first())
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.unwrap();
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Ok(tip_account.to_string())
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}
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fn get_swqos_type(&self) -> SwqosType {
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SwqosType::LunarLander
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}
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}
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impl LunarLanderClient {
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/// Create an HTTP binary client (POST /send-bin with bincode body).
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pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
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let rpc_client = SolanaRpcClient::new(rpc_url);
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let http_client = default_http_client_builder().build().unwrap();
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let ping_handle = Arc::new(tokio::sync::Mutex::new(None));
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let stop_ping = Arc::new(AtomicBool::new(false));
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let client = Self {
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rpc_client: Arc::new(rpc_client),
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backend: LunarLanderBackend::Http {
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endpoint,
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auth_token,
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http_client,
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ping_handle,
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stop_ping,
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},
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};
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let client_clone = client.clone();
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tokio::spawn(async move {
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client_clone.start_ping_task().await;
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});
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client
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}
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/// Create a QUIC client (port 16888, cert CN = api_key, fire-and-forget unidirectional streams).
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pub async fn new_quic(
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rpc_url: String,
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quic_endpoint: &str,
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api_key: String,
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mev_protection: bool,
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) -> Result<Self> {
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let rpc_client = SolanaRpcClient::new(rpc_url);
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let quic_client = LunarLanderQuicClient::connect_with_options(
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quic_endpoint,
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api_key,
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quic_client_options(mev_protection),
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)
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.await?;
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Ok(Self {
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rpc_client: Arc::new(rpc_client),
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backend: LunarLanderBackend::Quic(Arc::new(quic_client)),
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})
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}
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async fn start_ping_task(&self) {
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match &self.backend {
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LunarLanderBackend::Http {
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endpoint,
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auth_token,
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http_client,
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ping_handle,
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stop_ping,
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} => {
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let endpoint = endpoint.clone();
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let auth_token = auth_token.clone();
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let http_client = http_client.clone();
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let ping_handle = ping_handle.clone();
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let stop_ping = stop_ping.clone();
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let handle = tokio::spawn(async move {
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// Immediate first ping to warm connection.
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let _ = Self::send_ping_request(&http_client, &endpoint, &auth_token).await;
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let mut interval = tokio::time::interval(Duration::from_secs(30));
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loop {
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interval.tick().await;
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if stop_ping.load(Ordering::Relaxed) {
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break;
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}
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if let Err(e) =
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Self::send_ping_request(&http_client, &endpoint, &auth_token).await
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{
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if crate::common::sdk_log::sdk_log_enabled() {
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eprintln!("LunarLander ping request failed: {}", e);
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}
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}
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}
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});
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let mut guard = ping_handle.lock().await;
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if let Some(old) = guard.as_ref() {
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old.abort();
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}
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*guard = Some(handle);
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}
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LunarLanderBackend::Quic(_) => {}
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}
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}
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/// GET {endpoint}/ping for HTTP keepalive.
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async fn send_ping_request(
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http_client: &Client,
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endpoint: &str,
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auth_token: &str,
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) -> Result<()> {
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let url = format!("{}/ping", endpoint.trim_end_matches('/'));
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let response = http_client
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.get(&url)
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.header("x-api-key", auth_token)
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.timeout(Duration::from_millis(1500))
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.send()
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.await?;
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let _ = response.bytes().await;
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Ok(())
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}
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async fn send_transaction_impl(
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&self,
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trade_type: TradeType,
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transaction: &VersionedTransaction,
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wait_confirmation: bool,
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) -> Result<()> {
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let start_time = Instant::now();
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let signature = *transaction
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.signatures
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.first()
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.ok_or_else(|| anyhow::anyhow!("LunarLander transaction has no signature"))?;
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let body_bytes = bincode_serialize(transaction)
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.map_err(|e| anyhow::anyhow!("LunarLander binary serialize failed: {}", e))?;
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match &self.backend {
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LunarLanderBackend::Http { endpoint, auth_token, http_client, .. } => {
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let url = format!("{}/send-bin", endpoint.trim_end_matches('/'));
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let response = http_client
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.post(&url)
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.header("x-api-key", auth_token)
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.header("Content-Type", "application/octet-stream")
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.body(body_bytes)
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.send()
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.await?;
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let status = response.status();
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let _ = response.bytes().await;
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if status.is_success() {
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if crate::common::sdk_log::sdk_log_enabled() {
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crate::common::sdk_log::log_swqos_submitted(
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"LunarLander",
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trade_type,
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start_time.elapsed(),
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);
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}
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} else {
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if crate::common::sdk_log::sdk_log_enabled() {
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crate::common::sdk_log::log_swqos_submission_failed(
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"LunarLander",
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trade_type,
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start_time.elapsed(),
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format!("status {}", status),
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);
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}
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return Err(anyhow::anyhow!("LunarLander sendTransaction failed: {}", status));
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}
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}
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LunarLanderBackend::Quic(quic) => {
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quic.send_transaction(&body_bytes).await?;
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if crate::common::sdk_log::sdk_log_enabled() {
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crate::common::sdk_log::log_swqos_submitted(
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"LunarLander",
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trade_type,
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start_time.elapsed(),
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);
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}
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}
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}
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let start_time = Instant::now();
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match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
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Ok(_) => (),
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Err(e) => {
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if crate::common::sdk_log::sdk_log_enabled() {
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println!(" signature: {:?}", signature);
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println!(
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" [{:width$}] {} confirmation failed: {:?}",
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"LunarLander",
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trade_type,
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start_time.elapsed(),
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width = crate::common::sdk_log::SWQOS_LABEL_WIDTH
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);
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}
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return Err(e);
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}
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}
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if wait_confirmation && crate::common::sdk_log::sdk_log_enabled() {
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println!(" signature: {:?}", signature);
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println!(
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" [{:width$}] {} confirmed: {:?}",
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"LunarLander",
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trade_type,
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start_time.elapsed(),
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width = crate::common::sdk_log::SWQOS_LABEL_WIDTH
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);
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}
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Ok(())
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}
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}
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impl Drop for LunarLanderClient {
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fn drop(&mut self) {
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match &self.backend {
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LunarLanderBackend::Http { stop_ping, ping_handle, .. } => {
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stop_ping.store(true, Ordering::Relaxed);
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if let Ok(mut guard) = ping_handle.try_lock() {
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if let Some(handle) = guard.take() {
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handle.abort();
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}
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}
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}
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LunarLanderBackend::Quic(_) => {}
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}
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}
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}
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fn quic_client_options(mev_protection: bool) -> ClientOptions {
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ClientOptions { mev_protect: mev_protection, ..ClientOptions::default() }
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn quic_options_follow_sdk_mev_protection() {
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assert!(!quic_client_options(false).mev_protect);
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assert!(quic_client_options(true).mev_protect);
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}
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}
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