use std::{
any::Any,
io,
net::SocketAddr,
sync::{
Arc, RwLock,
atomic::{AtomicBool, Ordering},
},
};
use axum::{serve, serve::ListenerExt};
use reifydb_core::{
error::CoreError,
interface::version::{ComponentType, HasVersion, SystemVersion},
};
use reifydb_runtime::SharedRuntime;
use reifydb_sub_api::subsystem::{HealthStatus, Subsystem};
use reifydb_sub_server::state::AppState;
use reifydb_type::Result;
use tokio::{net::TcpListener, sync::oneshot};
use tracing::{error, info, warn};
use crate::{routes::router, state::HttpServerState};
pub struct HttpSubsystem {
bind_addr: Option<String>,
admin_bind_addr: Option<String>,
actual_addr: RwLock<Option<SocketAddr>>,
admin_actual_addr: RwLock<Option<SocketAddr>>,
state: AppState,
running: Arc<AtomicBool>,
shutdown_tx: Option<oneshot::Sender<()>>,
shutdown_complete_rx: Option<oneshot::Receiver<()>>,
admin_shutdown_tx: Option<oneshot::Sender<()>>,
admin_shutdown_complete_rx: Option<oneshot::Receiver<()>>,
runtime: SharedRuntime,
}
impl HttpSubsystem {
pub fn new(
bind_addr: Option<String>,
admin_bind_addr: Option<String>,
state: AppState,
runtime: SharedRuntime,
) -> Self {
Self {
bind_addr,
admin_bind_addr,
actual_addr: RwLock::new(None),
admin_actual_addr: RwLock::new(None),
state,
running: Arc::new(AtomicBool::new(false)),
shutdown_tx: None,
shutdown_complete_rx: None,
admin_shutdown_tx: None,
admin_shutdown_complete_rx: None,
runtime,
}
}
pub fn bind_addr(&self) -> Option<&str> {
self.bind_addr.as_deref()
}
pub fn local_addr(&self) -> Option<SocketAddr> {
*self.actual_addr.read().unwrap()
}
pub fn port(&self) -> Option<u16> {
self.local_addr().map(|a| a.port())
}
pub fn admin_local_addr(&self) -> Option<SocketAddr> {
*self.admin_actual_addr.read().unwrap()
}
pub fn admin_port(&self) -> Option<u16> {
self.admin_local_addr().map(|a| a.port())
}
fn spawn_main_server(&mut self) -> Result<()> {
let Some(addr) = self.bind_addr.clone() else {
self.running.store(true, Ordering::SeqCst);
return Ok(());
};
let listener = self.bind_listener(&addr)?;
let actual_addr = local_addr_or_err(&listener)?;
*self.actual_addr.write().unwrap() = Some(actual_addr);
info!("HTTP server bound to {}", actual_addr);
let (shutdown_tx, shutdown_rx) = oneshot::channel();
let (complete_tx, complete_rx) = oneshot::channel();
let server_state = HttpServerState::new(self.state.clone());
let running = self.running.clone();
self.runtime.spawn(async move {
running.store(true, Ordering::SeqCst);
let result = serve_http(listener, server_state, shutdown_rx, "HTTP server").await;
if let Err(e) = result {
error!("HTTP server error: {}", e);
}
running.store(false, Ordering::SeqCst);
let _ = complete_tx.send(());
info!("HTTP server stopped");
});
self.shutdown_tx = Some(shutdown_tx);
self.shutdown_complete_rx = Some(complete_rx);
Ok(())
}
fn spawn_admin_server(&mut self) -> Result<()> {
let Some(admin_addr) = self.admin_bind_addr.clone() else {
return Ok(());
};
let listener = self.bind_listener(&admin_addr)?;
let actual_addr = local_addr_or_err(&listener)?;
*self.admin_actual_addr.write().unwrap() = Some(actual_addr);
info!("HTTP admin server bound to {}", actual_addr);
let (admin_shutdown_tx, admin_shutdown_rx) = oneshot::channel();
let (admin_complete_tx, admin_complete_rx) = oneshot::channel();
let admin_config = self.state.config().clone().admin_enabled(true);
let admin_app_state = self.state.clone_with_config(admin_config);
let admin_server_state = HttpServerState::new(admin_app_state);
self.runtime.spawn(async move {
let result =
serve_http(listener, admin_server_state, admin_shutdown_rx, "HTTP admin server").await;
if let Err(e) = result {
error!("HTTP admin server error: {}", e);
}
let _ = admin_complete_tx.send(());
info!("HTTP admin server stopped");
});
self.admin_shutdown_tx = Some(admin_shutdown_tx);
self.admin_shutdown_complete_rx = Some(admin_complete_rx);
Ok(())
}
#[inline]
fn bind_listener(&self, addr: &str) -> Result<TcpListener> {
self.runtime.block_on(TcpListener::bind(addr)).map_err(|e| {
CoreError::SubsystemBindFailed {
addr: addr.to_string(),
reason: e.to_string(),
}
.into()
})
}
}
impl HasVersion for HttpSubsystem {
fn version(&self) -> SystemVersion {
SystemVersion {
name: env!("CARGO_PKG_NAME")
.strip_prefix("reifydb-")
.unwrap_or(env!("CARGO_PKG_NAME"))
.to_string(),
version: env!("CARGO_PKG_VERSION").to_string(),
description: "HTTP server subsystem for query and command handling".to_string(),
r#type: ComponentType::Subsystem,
}
}
}
impl Subsystem for HttpSubsystem {
fn name(&self) -> &'static str {
"Http"
}
fn start(&mut self) -> Result<()> {
if self.running.load(Ordering::SeqCst) {
return Ok(());
}
self.spawn_main_server()?;
self.spawn_admin_server()?;
Ok(())
}
fn shutdown(&mut self) -> Result<()> {
if let Some(tx) = self.admin_shutdown_tx.take() {
let _ = tx.send(());
}
if let Some(rx) = self.admin_shutdown_complete_rx.take() {
let _ = self.runtime.block_on(rx);
}
if let Some(tx) = self.shutdown_tx.take() {
let _ = tx.send(());
}
if let Some(rx) = self.shutdown_complete_rx.take() {
let _ = self.runtime.block_on(rx);
}
self.running.store(false, Ordering::SeqCst);
Ok(())
}
fn is_running(&self) -> bool {
self.running.load(Ordering::SeqCst)
}
fn health_status(&self) -> HealthStatus {
if self.running.load(Ordering::SeqCst) {
HealthStatus::Healthy
} else if self.shutdown_tx.is_some() {
HealthStatus::Warning {
description: "Starting up".to_string(),
}
} else {
HealthStatus::Failed {
description: "Not running".to_string(),
}
}
}
fn as_any(&self) -> &dyn Any {
self
}
fn as_any_mut(&mut self) -> &mut dyn Any {
self
}
}
#[inline]
fn local_addr_or_err(listener: &TcpListener) -> Result<SocketAddr> {
listener.local_addr().map_err(|e| {
CoreError::SubsystemAddressUnavailable {
reason: e.to_string(),
}
.into()
})
}
async fn serve_http(
listener: TcpListener,
server_state: HttpServerState,
shutdown_rx: oneshot::Receiver<()>,
name: &'static str,
) -> io::Result<()> {
let app = router(server_state);
let listener = listener.tap_io(|tcp_stream| {
if let Err(e) = tcp_stream.set_nodelay(true) {
warn!("Failed to set TCP_NODELAY: {e}");
}
});
serve(listener, app)
.with_graceful_shutdown(async move {
shutdown_rx.await.ok();
info!("{} received shutdown signal", name);
})
.await
}