refactor: rename bal-server-actix.rs to bal-server.rs

- Rename src/bin/bal-server-actix.rs -> src/bin/bal-server.rs
- Update Cargo.toml to point to new filename
- Update Dockerfile reference
- Update docs/08_security_audit.md references
This commit is contained in:
2026-07-17 10:31:56 -04:00
parent 5e1d0d7c54
commit 190cac929e
4 changed files with 4 additions and 4 deletions

960
src/bin/bal-server.rs Normal file
View File

@@ -0,0 +1,960 @@
use actix_governor::{Governor, GovernorConfigBuilder};
use actix_web::middleware;
use actix_web::web::Bytes;
use actix_web::{App, HttpResponse, HttpServer, Responder, web};
use bitcoin::{Network, Transaction, consensus};
use chrono::Utc;
use hex_conservative::FromHex;
use log::{debug, error, info, trace};
use serde::{Deserialize, Serialize};
use serde_json;
use sqlite::State;
use sqlite::{Connection, Value};
use std::collections::{HashMap, HashSet};
use std::env;
use std::fs;
use std::sync::Mutex;
use bal_server::db::{
check_duplicate_txids, create_database, execute_insert, get_all_addresses_by_xpub,
get_last_used_address_by_ip, get_next_address_index, insert_xpub, open_db, save_new_address,
};
use bal_server::xpub::new_address_from_xpub;
const VERSION: &str = env!("CARGO_PKG_VERSION");
const NETWORKS: [&str; 5] = ["bitcoin", "testnet", "testnet4", "signet", "regtest"];
#[derive(Debug, Clone, Serialize, Deserialize)]
struct NetConfig {
address: String,
fixed_fee: u64,
xpub: bool,
network: Network,
name: String,
enabled: bool,
}
impl NetConfig {
fn default_network(name: String, network: Network) -> Self {
NetConfig {
address: "".to_string(),
fixed_fee: 50000,
xpub: false,
name,
network,
enabled: false,
}
}
}
#[derive(Debug, Serialize, Deserialize, Clone)]
struct MyConfig {
regtest: NetConfig,
signet: NetConfig,
testnet: NetConfig,
testnet4: NetConfig,
mainnet: NetConfig,
info: String,
bind_address: String,
bind_port: u16,
db_file: String,
pub_key_path: String,
expose_stats: bool,
}
impl Default for MyConfig {
fn default() -> Self {
MyConfig {
regtest: NetConfig::default_network("regtest".to_string(), Network::Regtest),
signet: NetConfig::default_network("signet".to_string(), Network::Signet),
testnet: NetConfig::default_network("testnet".to_string(), Network::Testnet),
testnet4: NetConfig::default_network("testnet4".to_string(), Network::Testnet4),
mainnet: NetConfig::default_network("bitcoin".to_string(), Network::Bitcoin),
bind_address: "127.0.0.1".to_string(),
bind_port: 9137,
db_file: "bal.db".to_string(),
info: "Will Executor Server".to_string(),
pub_key_path: "public_key.pem".to_string(),
expose_stats: env::var("BAL_SERVER_EXPOSE_STATS")
.unwrap_or("false".to_string())
.parse::<bool>()
.unwrap_or(false),
}
}
}
impl MyConfig {
fn get_net_config(&self, param: &str) -> &NetConfig {
match param {
"regtest" => &self.regtest,
"testnet" => &self.testnet,
"testnet4" => &self.testnet4,
"signet" => &self.signet,
_ => &self.mainnet,
}
}
}
#[derive(Debug, Serialize, Deserialize)]
pub struct InfoResponse {
pub address: String,
pub base_fee: u64,
pub chain: String,
pub info: String,
pub version: String,
}
#[derive(Debug, Serialize, Deserialize)]
pub struct StatsResponse {
pub report_date: String,
pub chain: String,
pub totals: i64,
pub waiting: i64,
pub sent: i64,
pub failed: i64,
pub waiting_profit: i64,
pub sent_profit: i64,
pub missed_profit: i64,
pub unique_inputs: i64,
}
#[derive(Debug, Clone)]
struct ActixConfig {
max_body_size: usize,
timeout_secs: u64,
rate_limit_pushtxs: (u64, u32),
rate_limit_searchtx: (u64, u32),
rate_limit_info: (u64, u32),
rate_limit_default: (u64, u32),
workers: usize,
max_connections: usize,
}
fn parse_actix_config() -> ActixConfig {
ActixConfig {
max_body_size: env::var("BAL_SERVER_ACTIX_MAX_BODY_SIZE")
.unwrap_or("1048576".to_string())
.parse::<usize>()
.unwrap_or(1_048_576),
timeout_secs: env::var("BAL_SERVER_ACTIX_TIMEOUT_SECS")
.unwrap_or("5".to_string())
.parse::<u64>()
.unwrap_or(5),
rate_limit_pushtxs: (
env::var("BAL_SERVER_ACTIX_PUSHTXS_PER_SEC")
.unwrap_or("1".to_string())
.parse::<u64>()
.unwrap_or(1),
env::var("BAL_SERVER_ACTIX_PUSHTXS_BURST")
.unwrap_or("3".to_string())
.parse::<u32>()
.unwrap_or(3),
),
rate_limit_searchtx: (
env::var("BAL_SERVER_ACTIX_SEARCHTX_PER_SEC")
.unwrap_or("5".to_string())
.parse::<u64>()
.unwrap_or(5),
env::var("BAL_SERVER_ACTIX_SEARCHTX_BURST")
.unwrap_or("10".to_string())
.parse::<u32>()
.unwrap_or(10),
),
rate_limit_info: (
env::var("BAL_SERVER_ACTIX_INFO_PER_SEC")
.unwrap_or("20".to_string())
.parse::<u64>()
.unwrap_or(20),
env::var("BAL_SERVER_ACTIX_INFO_BURST")
.unwrap_or("30".to_string())
.parse::<u32>()
.unwrap_or(30),
),
rate_limit_default: (
env::var("BAL_SERVER_ACTIX_DEFAULT_PER_SEC")
.unwrap_or("50".to_string())
.parse::<u64>()
.unwrap_or(50),
env::var("BAL_SERVER_ACTIX_DEFAULT_BURST")
.unwrap_or("100".to_string())
.parse::<u32>()
.unwrap_or(100),
),
workers: env::var("BAL_SERVER_ACTIX_WORKERS")
.unwrap_or("4".to_string())
.parse::<usize>()
.unwrap_or(4),
max_connections: env::var("BAL_SERVER_ACTIX_MAX_CONNECTIONS")
.unwrap_or("100".to_string())
.parse::<usize>()
.unwrap_or(100),
}
}
struct AppState {
db: Mutex<Connection>,
cfg: MyConfig,
}
async fn echo_home(data: web::Data<AppState>) -> impl Responder {
HttpResponse::Ok().body(data.cfg.info.clone())
}
async fn echo_pub_key(data: web::Data<AppState>) -> impl Responder {
match fs::read_to_string(&data.cfg.pub_key_path) {
Ok(pub_key) => HttpResponse::Ok().body(pub_key),
Err(e) => {
error!(
"Failed to read public key file {}: {}",
data.cfg.pub_key_path, e
);
HttpResponse::InternalServerError().body("Failed to read public key file")
}
}
}
async fn echo_version() -> impl Responder {
HttpResponse::Ok().body(VERSION)
}
async fn echo_info(
path: web::Path<String>,
data: web::Data<AppState>,
req: actix_web::HttpRequest,
) -> impl Responder {
let param = path.into_inner();
if !NETWORKS.contains(&param.as_str()) {
return HttpResponse::NotFound().body("Unknown network");
}
info!("echo info!!!{}", param);
let netconfig = data.cfg.get_net_config(&param);
if !netconfig.enabled {
debug!("network disabled {}", param);
return HttpResponse::BadRequest().body("network disabled");
}
let remote_addr = req
.headers()
.get("X-Real-IP")
.and_then(|value| value.to_str().ok())
.and_then(|xff| xff.split(',').next())
.map(|ip| ip.trim().to_string())
.unwrap_or_else(|| {
req.connection_info()
.peer_addr()
.unwrap_or("unknown")
.to_string()
});
let address = match netconfig.xpub {
false => {
let address = netconfig.address.to_string();
trace!("is address: {}", &address);
address
}
true => {
// Lock #1: fetch existing address OR atomically claim next index
let next_idx = {
let db = match data.db.lock() {
Ok(g) => g,
Err(_p) => {
error!("DB mutex poisoned in echo_info (lookup phase)");
return HttpResponse::InternalServerError().body("DB mutex poisoned");
}
};
match get_last_used_address_by_ip(
&db,
&netconfig.name,
&netconfig.address,
&remote_addr,
) {
Some(address) => {
return HttpResponse::Ok().json(InfoResponse {
address,
base_fee: netconfig.fixed_fee,
chain: netconfig.network.to_string(),
info: data.cfg.info.to_string(),
version: VERSION.to_string(),
});
}
None => {
let next = get_next_address_index(&db, &netconfig.name, &netconfig.address);
next
}
}
}; // lock released
// Derive address (CPU-bound, no lock held)
let derived =
match new_address_from_xpub(&netconfig.address, next_idx.1, netconfig.network) {
Ok(address) => address,
Err(e) => {
error!("Failed to derive address from xpub: {}", e);
return HttpResponse::BadRequest()
.body(format!("Failed to derive address: {}", e));
}
};
// Lock #2: save the newly derived address
{
let db = match data.db.lock() {
Ok(g) => g,
Err(_p) => {
error!("DB mutex poisoned in echo_info (save phase)");
return HttpResponse::InternalServerError().body("DB mutex poisoned");
}
};
save_new_address(&db, next_idx.0, &derived.0, &derived.1, &remote_addr);
debug!("save new address {} {}", derived.0, derived.1);
trace!("next {} {}", next_idx.0, next_idx.1);
derived.0
} // lock released
}
};
let info = InfoResponse {
address,
base_fee: netconfig.fixed_fee,
chain: netconfig.network.to_string(),
info: data.cfg.info.to_string(),
version: VERSION.to_string(),
};
trace!("address: {:#?}", info);
match serde_json::to_string(&info) {
Ok(json_data) => {
debug!("echo info reply: {}", json_data);
HttpResponse::Ok().json(info)
}
Err(err) => HttpResponse::InternalServerError().body(format!("error:{}", err)),
}
}
async fn echo_stats(path: web::Path<String>, data: web::Data<AppState>) -> impl Responder {
let param = path.into_inner();
if !NETWORKS.contains(&param.as_str()) {
return HttpResponse::NotFound().body("Unknown network");
}
info!("echo stats!!! {}", data.cfg.expose_stats);
let netconfig = data.cfg.get_net_config(&param);
if !netconfig.enabled {
debug!("network disabled {}", param);
return HttpResponse::BadRequest().body("network disabled");
}
if !data.cfg.expose_stats {
return HttpResponse::Forbidden().body("Stats not exposed");
}
let mut stats: Vec<StatsResponse> = vec![];
let db = match data.db.lock() {
Ok(g) => g,
Err(_p) => {
error!("DB mutex poisoned in echo_stats");
return HttpResponse::InternalServerError().body("DB mutex poisoned");
}
};
let mut stmt = match db.prepare(
"SELECT report_date, chain, totals, waiting, sent, failed, waiting_profit, sent_profit, missed_profit, unique_inputs FROM tbl_stats WHERE chain = ?"
) {
Ok(s) => s,
Err(e) => {
error!("Failed to prepare stats query: {}", e);
return HttpResponse::InternalServerError().body("Database error");
}
};
if let Err(e) = stmt.bind((1, Value::String(netconfig.name.clone()))) {
error!("Failed to bind chain in stats query: {}", e);
return HttpResponse::InternalServerError().body("Database error");
}
while let Ok(State::Row) = stmt.next() {
let report_date = stmt.read("report_date").unwrap_or("0".to_string());
let chain = stmt.read("chain").unwrap_or("?".to_string());
let totals = stmt
.read("totals")
.unwrap_or("0".to_string())
.parse::<i64>()
.unwrap_or(0);
let waiting = stmt
.read("waiting")
.unwrap_or("0".to_string())
.parse::<i64>()
.unwrap_or(0);
let sent = stmt
.read("sent")
.unwrap_or("0".to_string())
.parse::<i64>()
.unwrap_or(0);
let failed = stmt
.read("failed")
.unwrap_or("0".to_string())
.parse::<i64>()
.unwrap_or(0);
let waiting_profit = stmt
.read("waiting_profit")
.unwrap_or("0".to_string())
.parse::<i64>()
.unwrap_or(0);
let sent_profit = stmt
.read("sent_profit")
.unwrap_or("0".to_string())
.parse::<i64>()
.unwrap_or(0);
let missed_profit = stmt
.read("missed_profit")
.unwrap_or("0".to_string())
.parse::<i64>()
.unwrap_or(0);
let unique_inputs = stmt
.read("unique_inputs")
.unwrap_or("0".to_string())
.parse::<i64>()
.unwrap_or(0);
stats.push(StatsResponse {
report_date,
chain,
totals,
waiting,
sent,
failed,
waiting_profit,
sent_profit,
missed_profit,
unique_inputs,
});
}
match serde_json::to_string(&stats) {
Ok(json_data) => {
debug!("echo info reply: {}", json_data);
HttpResponse::Ok().json(stats)
}
Err(err) => HttpResponse::InternalServerError().body(format!("error:{}", err)),
}
}
async fn echo_search(body: Bytes, data: web::Data<AppState>) -> impl Responder {
info!("echo search!!!");
let strbody = match std::str::from_utf8(&body) {
Ok(s) => s,
Err(_) => {
return HttpResponse::BadRequest().body("Invalid UTF-8 body");
}
};
info!("{}", strbody);
if strbody.is_empty() || strbody.len() != 64 || !strbody.chars().all(|c| c.is_ascii_hexdigit())
{
return HttpResponse::BadRequest().body("Invalid txid");
}
let db = match data.db.lock() {
Ok(g) => g,
Err(_p) => {
error!("DB mutex poisoned in echo_search");
return HttpResponse::InternalServerError().body("DB mutex poisoned");
}
};
let mut statement = match db.prepare("SELECT * FROM tbl_tx WHERE txid = ? LIMIT 1") {
Ok(s) => s,
Err(e) => {
error!("Failed to prepare statement: {}", e);
return HttpResponse::InternalServerError().body("Database error");
}
};
if let Err(e) = statement.bind((1, strbody)) {
error!("Failed to bind parameter: {}", e);
return HttpResponse::InternalServerError().body("Database error");
}
if let Ok(State::Row) = statement.next() {
let mut response_data = HashMap::new();
match statement.read::<String, _>("status") {
Ok(value) => {
response_data.insert("status", value);
}
Err(e) => {
error!("Error reading status: {}", e);
}
}
match statement.read::<String, _>("tx") {
Ok(value) => {
response_data.insert("tx", value);
}
Err(e) => {
error!("Error reading tx: {}", e);
}
}
match statement.read::<String, _>("our_address") {
Ok(value) => {
response_data.insert("our_address", value);
}
Err(e) => {
error!("Error reading address: {}", e);
}
}
match statement.read::<String, _>("our_fees") {
Ok(value) => {
response_data.insert("our_fees", value);
}
Err(e) => {
error!("Error reading fees: {}", e);
}
}
match statement.read::<String, _>("reqid") {
Ok(value) => {
response_data.insert("time", value);
}
Err(e) => {
error!("Error reading reqid: {}", e);
}
}
match serde_json::to_string(&response_data) {
Ok(json_data) => HttpResponse::Ok().json(json_data),
Err(_) => HttpResponse::BadRequest().body("Bad data received"),
}
} else {
HttpResponse::BadRequest().body("Bad data received")
}
}
/// Holds a transaction that has already been parsed and validated outside the DB lock.
#[derive(Clone)]
struct ParsedTx {
txid: String,
wtxid: String,
ntxid: String,
raw_hex: String, // the original line
locktime: String,
inputs: Vec<(String, String)>, // (in_txid, in_vout)
outputs: Vec<(usize, String, u64)>, // (idx, script_pubkey, amount_sat)
}
/// Parse all transactions from the request body **without** needing the DB lock.
/// Returns `Ok(parsed_txs)` if at least one tx was valid, or `Err(HttpResponse)` for early failure.
fn parse_request_transactions(
strbody: &str,
_req_time: i64,
netconfig: &NetConfig,
known_addresses: &HashSet<String>,
) -> Result<Vec<(ParsedTx, String, u64)>, HttpResponse> {
let mut result: Vec<(ParsedTx, String, u64)> = Vec::new();
let mut union_tx = true;
for line in strbody.split('\n') {
if line.is_empty() {
continue;
}
let raw_hex = line.to_string();
let raw_tx = match Vec::<u8>::from_hex(line) {
Ok(v) => v,
Err(e) => {
error!("rawtx error: {} for line {}", e, line);
continue;
}
};
if raw_tx.is_empty() {
continue;
}
let tx: Transaction = match consensus::deserialize(&raw_tx) {
Ok(t) => t,
Err(e) => {
error!("Deserialize error: {} for line {}", e, line);
continue;
}
};
let txid = tx.compute_txid().to_string();
let ntxid = tx.compute_ntxid();
let wtxid = tx.compute_wtxid();
let locktime = tx.lock_time.to_string();
// Collect inputs
let mut inputs: Vec<(String, String)> = Vec::with_capacity(tx.input.len());
for input in tx.input {
inputs.push((
input.previous_output.txid.to_string(),
input.previous_output.vout.to_string(),
));
}
// Collect outputs and find which one is ours + its amount
let mut outputs: Vec<(usize, String, u64)> = Vec::with_capacity(tx.output.len());
let mut found = false;
let mut our_address = String::new();
let mut our_fees = 0u64;
for (idx, output) in tx.output.into_iter().enumerate() {
let script = output.script_pubkey.to_string();
let amount = output.value.to_sat();
outputs.push((idx, script.clone(), amount));
let address = match bitcoin::Address::from_script(
output.script_pubkey.as_script(),
netconfig.network,
) {
Ok(addr) => addr.to_string(),
Err(_) => continue, // skip un-decodable outputs
};
let expected_ours = if netconfig.xpub {
if known_addresses.contains(&address) {
address.clone()
} else {
continue;
}
} else {
netconfig.address.clone()
};
if address == expected_ours && amount >= netconfig.fixed_fee {
our_address = expected_ours;
our_fees = amount;
found = true;
trace!("address and fees are correct {}: {}", our_address, our_fees);
}
}
if netconfig.fixed_fee == 0 {
found = true;
}
if !found {
error!("willexecutor output not found for tx {}", txid);
return Err(HttpResponse::BadRequest().body("Bad data received"));
}
if !union_tx {
// This is only used for SQL building later; we track it in the caller
} else {
union_tx = false;
}
result.push((
ParsedTx {
txid,
wtxid: wtxid.to_string(),
ntxid: ntxid.to_string(),
raw_hex,
locktime,
inputs,
outputs,
},
our_address,
our_fees,
));
}
Ok(result)
}
async fn echo_push(
body: Bytes,
path: web::Path<String>,
data: web::Data<AppState>,
) -> HttpResponse {
trace!("echo_push");
let strbody = match std::str::from_utf8(&body) {
Ok(s) => s,
Err(_) => {
return HttpResponse::BadRequest().body("Invalid UTF-8 body");
}
};
let param = path.into_inner();
if !NETWORKS.contains(&param.as_str()) {
return HttpResponse::NotFound().body("Unknown network");
}
let netconfig = data.cfg.get_net_config(&param);
if !netconfig.enabled {
trace!("network not enabled {}", &netconfig.name);
return HttpResponse::BadRequest().body("Network not enabled");
}
let req_time = match Utc::now().timestamp_nanos_opt() {
Some(t) => t,
None => {
error!("Invalid timestamp");
return HttpResponse::BadRequest().body("Invalid timestamp");
}
};
// ===== PHASE 1: parse all transactions WITHOUT the DB lock =====
let known_addresses: HashSet<String> = {
let db = match data.db.lock() {
Ok(g) => g,
Err(_p) => {
error!("DB mutex poisoned acquiring addresses in echo_push");
return HttpResponse::InternalServerError().body("DB mutex poisoned");
}
};
if netconfig.xpub {
match get_all_addresses_by_xpub(&db, &netconfig.address) {
Ok(addrs) => addrs,
Err(e) => {
error!("Failed to load addresses from xpub: {}", e);
return HttpResponse::InternalServerError().body("Database error");
}
}
} else {
HashSet::new()
}
}; // lock released here
// Parse all transactions (CPU-bound, no DB needed)
let parsed = match parse_request_transactions(strbody, req_time, netconfig, &known_addresses) {
Ok(v) => v,
Err(resp) => return resp,
};
if parsed.is_empty() {
return HttpResponse::Ok().body("thx");
}
let all_txids: Vec<String> = parsed.iter().map(|(p, _, _)| p.txid.clone()).collect();
// ===== PHASE 2: check duplicates in a single batch query =====
let duplicates = {
let db = match data.db.lock() {
Ok(g) => g,
Err(_p) => {
error!("DB mutex poisoned in echo_push duplicate check");
return HttpResponse::InternalServerError().body("DB mutex poisoned");
}
};
match check_duplicate_txids(&db, &all_txids) {
Ok(dups) => dups,
Err(e) => {
error!("Duplicate check failed: {}", e);
return HttpResponse::InternalServerError().body("Database error");
}
}
}; // lock released here
let all_present = all_txids.iter().all(|t| duplicates.contains(t));
if all_present {
return HttpResponse::Ok().body("already present");
}
// ===== PHASE 3: build insert statements and execute (single DB lock, minimal time) =====
{
let db = match data.db.lock() {
Ok(g) => g,
Err(_p) => {
error!("DB mutex poisoned in echo_push insert phase");
return HttpResponse::InternalServerError().body("DB mutex poisoned");
}
};
let sqltxshead = "INSERT INTO tbl_tx (txid, wtxid, ntxid, tx, locktime, reqid, network, our_address, our_fees)".to_string();
let mut sqltxs = String::new();
let sqlinpshead = "INSERT INTO tbl_inp (txid, in_txid, in_vout )".to_string();
let mut sqlinps = String::new();
let sqloutshead = "INSERT INTO tbl_out (txid, vout, script_pubkey, amount )".to_string();
let mut sqlouts = String::new();
let mut union_tx = true;
let mut union_inps = true;
let mut union_outs = true;
let mut ptx: Vec<(usize, Value)> = vec![];
let mut pinps: Vec<(usize, Value)> = vec![];
let mut pouts: Vec<(usize, Value)> = vec![];
let mut linenum = 1usize;
let mut lineinp = 1usize;
let mut lineout = 1usize;
for (parsed, our_address, our_fees) in &parsed {
if duplicates.contains(&parsed.txid) {
continue;
}
if !union_tx {
sqltxs.push_str(" UNION ALL");
} else {
union_tx = false;
}
sqltxs.push_str(" SELECT ?, ?, ?, ?, ?, ?, ?, ?, ?");
ptx.push((linenum, Value::String(parsed.txid.clone())));
ptx.push((linenum + 1, Value::String(parsed.wtxid.clone())));
ptx.push((linenum + 2, Value::String(parsed.ntxid.clone())));
ptx.push((linenum + 3, Value::String(parsed.raw_hex.clone())));
ptx.push((linenum + 4, Value::String(parsed.locktime.clone())));
ptx.push((linenum + 5, Value::String(req_time.to_string())));
ptx.push((linenum + 6, Value::String(netconfig.name.clone())));
ptx.push((linenum + 7, Value::String(our_address.clone())));
ptx.push((linenum + 8, Value::String(our_fees.to_string())));
linenum += 9;
for (in_txid, in_vout) in &parsed.inputs {
if !union_inps {
sqlinps.push_str(" UNION ALL");
} else {
union_inps = false;
}
sqlinps.push_str(" SELECT ?, ?, ?");
pinps.push((lineinp, Value::String(parsed.txid.clone())));
pinps.push((lineinp + 1, Value::String(in_txid.clone())));
pinps.push((lineinp + 2, Value::String(in_vout.clone())));
lineinp += 3;
}
for (idx, script, amount) in &parsed.outputs {
if !union_outs {
sqlouts.push_str(" UNION ALL");
} else {
union_outs = false;
}
sqlouts.push_str(" SELECT ?, ?, ?, ?");
pouts.push((lineout, Value::String(parsed.txid.clone())));
pouts.push((
lineout + 1,
Value::Integer(i64::try_from(*idx).unwrap_or(-1)),
));
pouts.push((lineout + 2, Value::String(script.clone())));
pouts.push((
lineout + 3,
Value::Integer(i64::try_from(*amount).unwrap_or(0)),
));
lineout += 4;
}
}
if sqltxs.is_empty() {
return HttpResponse::Ok().body("already present");
}
let sqltxs = format!("{}{};", sqltxshead, sqltxs);
let sqlinps = format!("{}{};", sqlinpshead, sqlinps);
let sqlouts = format!("{}{};", sqloutshead, sqlouts);
if let Err(err) = execute_insert(&db, sqltxs, ptx, sqlinps, pinps, sqlouts, pouts) {
error!("execute_insert failed: {}", err);
return HttpResponse::BadRequest().body("Bad data received");
}
} // lock released
HttpResponse::Ok().body("thx")
}
fn parse_env(data: &MyConfig) -> MyConfig {
let mut cfg = data.clone();
if let Ok(value) = env::var("BAL_SERVER_DB_FILE") {
debug!("BAL_SERVER_DB_FILE: {}", value);
cfg.db_file = value;
}
if let Ok(value) = env::var("BAL_SERVER_BIND_ADDRESS") {
debug!("BAL_SERVER_BIND_ADDRESS: {}", value);
cfg.bind_address = value;
}
if let Ok(value) = env::var("BAL_SERVER_BIND_PORT") {
debug!("BAL_SERVER_BIND_PORT: {}", value);
if let Ok(v) = value.parse::<u16>() {
cfg.bind_port = v;
}
}
if let Ok(value) = env::var("BAL_SERVER_PUB_KEY_PATH") {
debug!("BAL_SERVER_PUB_KEY_PATH: {}", value);
cfg.pub_key_path = value;
}
if let Ok(value) = env::var("BAL_SERVER_INFO") {
debug!("BAL_SERVER_INFO: {}", value);
cfg.info = value;
}
parse_env_netconfig(&mut cfg, "regtest");
parse_env_netconfig(&mut cfg, "signet");
parse_env_netconfig(&mut cfg, "testnet");
parse_env_netconfig(&mut cfg, "testnet4");
parse_env_netconfig(&mut cfg, "bitcoin");
cfg
}
fn parse_env_netconfig(cfg: &mut MyConfig, chain: &str) {
let c = match chain {
"regtest" => &mut cfg.regtest,
"signet" => &mut cfg.signet,
"testnet" => &mut cfg.testnet,
"testnet4" => &mut cfg.testnet4,
_ => &mut cfg.mainnet,
};
if let Ok(value) = env::var(format!("BAL_SERVER_{}_ADDRESS", chain.to_uppercase())) {
debug!("BAL_SERVER_{}_ADDRESS: {}", chain.to_uppercase(), value);
c.address = value;
if c.address.len() > 5 && &c.address[1..4] == "pub" {
c.xpub = true;
trace!("is_xpub");
}
c.enabled = true;
}
if let Ok(value) = env::var(format!("BAL_SERVER_{}_FIXED_FEE", chain.to_uppercase())) {
debug!("BAL_SERVER_{}_FIXED_FEE: {}", chain.to_uppercase(), value);
if let Ok(v) = value.parse::<u64>() {
c.fixed_fee = v;
}
}
}
fn init_network(db: &Connection, cfg: &MyConfig) {
for network in NETWORKS {
let netconfig = cfg.get_net_config(network);
insert_xpub(db, &netconfig.name.to_string(), &netconfig.address);
}
}
#[actix_web::main]
async fn main() -> std::io::Result<()> {
env_logger::init();
let cfg = MyConfig::default();
let actix_cfg = parse_actix_config();
let cfg = parse_env(&cfg);
let db = match open_db(&cfg.db_file) {
Ok(c) => c,
Err(e) => {
return Err(std::io::Error::new(std::io::ErrorKind::Other, e));
}
};
// Create database tables
create_database(&db);
// Initialize networks
init_network(&db, &cfg);
let data = web::Data::new(AppState {
db: Mutex::new(db),
cfg: cfg.clone(),
});
// Initialize networks
{
let db = data.db.lock().unwrap();
for network in NETWORKS {
let netconfig = data.cfg.get_net_config(network);
insert_xpub(&db, &netconfig.name.to_string(), &netconfig.address);
}
}
let bind_address = data.cfg.bind_address.clone();
let bind_port = data.cfg.bind_port;
// Use a single global rate limiter with the most conservative settings (1 req/sec)
// Per-endpoint rate limiting requires advanced configuration with explicit types
let governor_conf = GovernorConfigBuilder::const_default()
.seconds_per_request(actix_cfg.rate_limit_pushtxs.0) // Most restrictive: 1 req/sec
.burst_size(actix_cfg.rate_limit_pushtxs.1) // Burst: 3
.finish()
.unwrap();
println!("Starting server on http://{}:{}", bind_address, bind_port);
HttpServer::new(move || {
App::new()
.app_data(web::PayloadConfig::default().limit(actix_cfg.max_body_size))
.app_data(data.clone())
.wrap(middleware::Logger::default())
.wrap(middleware::Compress::default())
.wrap(Governor::new(&governor_conf))
.service(web::resource("/").route(web::get().to(echo_home)))
.service(web::resource("/.pub_key.pem").route(web::get().to(echo_pub_key)))
.service(web::resource("/version").route(web::get().to(echo_version)))
.service(web::resource("/{network}/info").route(web::get().to(echo_info)))
.service(web::resource("/{network}/stats").route(web::get().to(echo_stats)))
.service(web::resource("/{network}/pushtxs").route(web::post().to(echo_push)))
.service(web::resource("/searchtx").route(web::post().to(echo_search)))
})
.workers(actix_cfg.workers)
.max_connections(actix_cfg.max_connections)
.bind((bind_address, bind_port))?
.run()
.await
}