Files
opencode/packages/desktop/src-tauri/src/lib.rs
2026-02-02 13:30:46 +08:00

544 lines
17 KiB
Rust

mod cli;
#[cfg(windows)]
mod job_object;
mod markdown;
mod window_customizer;
use cli::{install_cli, sync_cli};
use futures::FutureExt;
use futures::future;
#[cfg(windows)]
use job_object::*;
use std::{
collections::VecDeque,
net::TcpListener,
sync::{Arc, Mutex},
time::{Duration, Instant},
};
use tauri::{AppHandle, LogicalSize, Manager, RunEvent, State, WebviewWindowBuilder};
#[cfg(any(target_os = "linux", all(debug_assertions, windows)))]
use tauri_plugin_deep_link::DeepLinkExt;
#[cfg(windows)]
use tauri_plugin_decorum::WebviewWindowExt;
use tauri_plugin_dialog::{DialogExt, MessageDialogButtons, MessageDialogResult};
use tauri_plugin_shell::process::{CommandChild, CommandEvent};
use tauri_plugin_store::StoreExt;
use tokio::sync::oneshot;
use crate::window_customizer::PinchZoomDisablePlugin;
const SETTINGS_STORE: &str = "opencode.settings.dat";
const DEFAULT_SERVER_URL_KEY: &str = "defaultServerUrl";
#[derive(Clone, serde::Serialize)]
struct ServerReadyData {
url: String,
password: Option<String>,
}
#[derive(Clone)]
struct ServerState {
child: Arc<Mutex<Option<CommandChild>>>,
status: future::Shared<oneshot::Receiver<Result<ServerReadyData, String>>>,
}
impl ServerState {
pub fn new(
child: Option<CommandChild>,
status: oneshot::Receiver<Result<ServerReadyData, String>>,
) -> Self {
Self {
child: Arc::new(Mutex::new(child)),
status: status.shared(),
}
}
pub fn set_child(&self, child: Option<CommandChild>) {
*self.child.lock().unwrap() = child;
}
}
#[derive(Clone)]
struct LogState(Arc<Mutex<VecDeque<String>>>);
const MAX_LOG_ENTRIES: usize = 200;
#[tauri::command]
fn kill_sidecar(app: AppHandle) {
let Some(server_state) = app.try_state::<ServerState>() else {
println!("Server not running");
return;
};
let Some(server_state) = server_state
.child
.lock()
.expect("Failed to acquire mutex lock")
.take()
else {
println!("Server state missing");
return;
};
let _ = server_state.kill();
println!("Killed server");
}
async fn get_logs(app: AppHandle) -> Result<String, String> {
let log_state = app.try_state::<LogState>().ok_or("Log state not found")?;
let logs = log_state
.0
.lock()
.map_err(|_| "Failed to acquire log lock")?;
Ok(logs.iter().cloned().collect::<Vec<_>>().join(""))
}
#[tauri::command]
async fn ensure_server_ready(state: State<'_, ServerState>) -> Result<ServerReadyData, String> {
state
.status
.clone()
.await
.map_err(|_| "Failed to get server status".to_string())?
}
#[tauri::command]
fn get_default_server_url(app: AppHandle) -> Result<Option<String>, String> {
let store = app
.store(SETTINGS_STORE)
.map_err(|e| format!("Failed to open settings store: {}", e))?;
let value = store.get(DEFAULT_SERVER_URL_KEY);
match value {
Some(v) => Ok(v.as_str().map(String::from)),
None => Ok(None),
}
}
#[tauri::command]
async fn set_default_server_url(app: AppHandle, url: Option<String>) -> Result<(), String> {
let store = app
.store(SETTINGS_STORE)
.map_err(|e| format!("Failed to open settings store: {}", e))?;
match url {
Some(u) => {
store.set(DEFAULT_SERVER_URL_KEY, serde_json::Value::String(u));
}
None => {
store.delete(DEFAULT_SERVER_URL_KEY);
}
}
store
.save()
.map_err(|e| format!("Failed to save settings: {}", e))?;
Ok(())
}
fn get_sidecar_port() -> u32 {
option_env!("OPENCODE_PORT")
.map(|s| s.to_string())
.or_else(|| std::env::var("OPENCODE_PORT").ok())
.and_then(|port_str| port_str.parse().ok())
.unwrap_or_else(|| {
TcpListener::bind("127.0.0.1:0")
.expect("Failed to bind to find free port")
.local_addr()
.expect("Failed to get local address")
.port()
}) as u32
}
fn spawn_sidecar(app: &AppHandle, hostname: &str, port: u32, password: &str) -> CommandChild {
let log_state = app.state::<LogState>();
let log_state_clone = log_state.inner().clone();
println!("spawning sidecar on port {port}");
let (mut rx, child) = cli::create_command(
app,
format!("serve --hostname {hostname} --port {port}").as_str(),
)
.env("OPENCODE_SERVER_USERNAME", "opencode")
.env("OPENCODE_SERVER_PASSWORD", password)
.spawn()
.expect("Failed to spawn opencode");
tauri::async_runtime::spawn(async move {
while let Some(event) = rx.recv().await {
match event {
CommandEvent::Stdout(line_bytes) => {
let line = String::from_utf8_lossy(&line_bytes);
print!("{line}");
// Store log in shared state
if let Ok(mut logs) = log_state_clone.0.lock() {
logs.push_back(format!("[STDOUT] {}", line));
// Keep only the last MAX_LOG_ENTRIES
while logs.len() > MAX_LOG_ENTRIES {
logs.pop_front();
}
}
}
CommandEvent::Stderr(line_bytes) => {
let line = String::from_utf8_lossy(&line_bytes);
eprint!("{line}");
// Store log in shared state
if let Ok(mut logs) = log_state_clone.0.lock() {
logs.push_back(format!("[STDERR] {}", line));
// Keep only the last MAX_LOG_ENTRIES
while logs.len() > MAX_LOG_ENTRIES {
logs.pop_front();
}
}
}
_ => {}
}
}
});
child
}
fn url_is_localhost(url: &reqwest::Url) -> bool {
url.host_str().is_some_and(|host| {
host.eq_ignore_ascii_case("localhost")
|| host
.parse::<std::net::IpAddr>()
.is_ok_and(|ip| ip.is_loopback())
})
}
async fn check_server_health(url: &str, password: Option<&str>) -> bool {
let Ok(url) = reqwest::Url::parse(url) else {
return false;
};
let mut builder = reqwest::Client::builder().timeout(Duration::from_secs(3));
if url_is_localhost(&url) {
// Some environments set proxy variables (HTTP_PROXY/HTTPS_PROXY/ALL_PROXY) without
// excluding loopback. reqwest respects these by default, which can prevent the desktop
// app from reaching its own local sidecar server.
builder = builder.no_proxy();
};
let Ok(client) = builder.build() else {
return false;
};
let Ok(health_url) = url.join("/global/health") else {
return false;
};
let mut req = client.get(health_url);
if let Some(password) = password {
req = req.basic_auth("opencode", Some(password));
}
req.send()
.await
.map(|r| r.status().is_success())
.unwrap_or(false)
}
#[cfg_attr(mobile, tauri::mobile_entry_point)]
pub fn run() {
let updater_enabled = option_env!("TAURI_SIGNING_PRIVATE_KEY").is_some();
#[cfg(all(target_os = "macos", not(debug_assertions)))]
let _ = std::process::Command::new("killall")
.arg("opencode-cli")
.output();
let mut builder = tauri::Builder::default()
.plugin(tauri_plugin_single_instance::init(|app, _args, _cwd| {
// Focus existing window when another instance is launched
if let Some(window) = app.get_webview_window("main") {
let _ = window.set_focus();
let _ = window.unminimize();
}
}))
.plugin(tauri_plugin_deep_link::init())
.plugin(tauri_plugin_os::init())
.plugin(
tauri_plugin_window_state::Builder::new()
.with_state_flags(
tauri_plugin_window_state::StateFlags::all()
- tauri_plugin_window_state::StateFlags::DECORATIONS,
)
.build(),
)
.plugin(tauri_plugin_store::Builder::new().build())
.plugin(tauri_plugin_dialog::init())
.plugin(tauri_plugin_shell::init())
.plugin(tauri_plugin_process::init())
.plugin(tauri_plugin_opener::init())
.plugin(tauri_plugin_clipboard_manager::init())
.plugin(tauri_plugin_http::init())
.plugin(tauri_plugin_notification::init())
.plugin(PinchZoomDisablePlugin)
.plugin(tauri_plugin_decorum::init())
.invoke_handler(tauri::generate_handler![
kill_sidecar,
install_cli,
ensure_server_ready,
get_default_server_url,
set_default_server_url,
markdown::parse_markdown_command
])
.setup(move |app| {
#[cfg(any(target_os = "linux", all(debug_assertions, windows)))]
app.deep_link().register_all().ok();
let app = app.handle().clone();
// Initialize log state
app.manage(LogState(Arc::new(Mutex::new(VecDeque::new()))));
#[cfg(windows)]
app.manage(JobObjectState::new());
let primary_monitor = app.primary_monitor().ok().flatten();
let size = primary_monitor
.map(|m| m.size().to_logical(m.scale_factor()))
.unwrap_or(LogicalSize::new(1920, 1080));
let config = app
.config()
.app
.windows
.iter()
.find(|w| w.label == "main")
.expect("main window config missing");
let window_builder = WebviewWindowBuilder::from_config(&app, config)
.expect("Failed to create window builder from config")
.inner_size(size.width as f64, size.height as f64)
.initialization_script(format!(
r#"
window.__OPENCODE__ ??= {{}};
window.__OPENCODE__.updaterEnabled = {updater_enabled};
"#
));
#[cfg(target_os = "macos")]
let window_builder = window_builder
.title_bar_style(tauri::TitleBarStyle::Overlay)
.hidden_title(true);
#[cfg(windows)]
let window_builder = window_builder
// Some VPNs set a global/system proxy that WebView2 applies even for loopback
// connections, which breaks the app's localhost sidecar server.
// Note: when setting additional args, we must re-apply wry's default
// `--disable-features=...` flags.
.additional_browser_args(
"--proxy-bypass-list=<-loopback> --disable-features=msWebOOUI,msPdfOOUI,msSmartScreenProtection",
)
.decorations(false);
let window = window_builder.build().expect("Failed to create window");
#[cfg(windows)]
let _ = window.create_overlay_titlebar();
let (tx, rx) = oneshot::channel();
app.manage(ServerState::new(None, rx));
{
let app = app.clone();
tauri::async_runtime::spawn(async move {
let mut custom_url = None;
if let Some(url) = get_default_server_url(app.clone()).ok().flatten() {
println!("Using desktop-specific custom URL: {url}");
custom_url = Some(url);
}
if custom_url.is_none()
&& let Some(cli_config) = cli::get_config(&app).await
&& let Some(url) = get_server_url_from_config(&cli_config)
{
println!("Using custom server URL from config: {url}");
custom_url = Some(url);
}
let res = match setup_server_connection(&app, custom_url).await {
Ok((child, url)) => {
#[cfg(windows)]
if let Some(child) = &child {
let job_state = app.state::<JobObjectState>();
job_state.assign_pid(child.pid());
}
app.state::<ServerState>().set_child(child);
Ok(url)
}
Err(e) => Err(e),
};
let _ = tx.send(res);
});
}
{
let app = app.clone();
tauri::async_runtime::spawn(async move {
if let Err(e) = sync_cli(app) {
eprintln!("Failed to sync CLI: {e}");
}
});
}
Ok(())
});
if updater_enabled {
builder = builder.plugin(tauri_plugin_updater::Builder::new().build());
}
builder
.build(tauri::generate_context!())
.expect("error while running tauri application")
.run(|app, event| {
if let RunEvent::Exit = event {
println!("Received Exit");
kill_sidecar(app.clone());
}
});
}
/// Converts a bind address hostname to a valid URL hostname for connection.
/// - `0.0.0.0` and `::` are wildcard bind addresses, not valid connect targets
/// - IPv6 addresses need brackets in URLs (e.g., `::1` -> `[::1]`)
fn normalize_hostname_for_url(hostname: &str) -> String {
// Wildcard bind addresses -> localhost equivalents
if hostname == "0.0.0.0" {
return "127.0.0.1".to_string();
}
if hostname == "::" {
return "[::1]".to_string();
}
// IPv6 addresses need brackets in URLs
if hostname.contains(':') && !hostname.starts_with('[') {
return format!("[{}]", hostname);
}
hostname.to_string()
}
fn get_server_url_from_config(config: &cli::Config) -> Option<String> {
let server = config.server.as_ref()?;
let port = server.port?;
println!("server.port found in OC config: {port}");
let hostname = server
.hostname
.as_ref()
.map(|v| normalize_hostname_for_url(v))
.unwrap_or_else(|| "127.0.0.1".to_string());
Some(format!("http://{}:{}", hostname, port))
}
async fn setup_server_connection(
app: &AppHandle,
custom_url: Option<String>,
) -> Result<(Option<CommandChild>, ServerReadyData), String> {
if let Some(url) = custom_url {
loop {
if check_server_health(&url, None).await {
println!("Connected to custom server: {}", url);
return Ok((
None,
ServerReadyData {
url: url.clone(),
password: None,
},
));
}
const RETRY: &str = "Retry";
let res = app.dialog()
.message(format!("Could not connect to configured server:\n{}\n\nWould you like to retry or start a local server instead?", url))
.title("Connection Failed")
.buttons(MessageDialogButtons::OkCancelCustom(RETRY.to_string(), "Start Local".to_string()))
.blocking_show_with_result();
match res {
MessageDialogResult::Custom(name) if name == RETRY => {
continue;
}
_ => {
break;
}
}
}
}
let local_port = get_sidecar_port();
let hostname = "127.0.0.1";
let local_url = format!("http://{hostname}:{local_port}");
if !check_server_health(&local_url, None).await {
let password = uuid::Uuid::new_v4().to_string();
match spawn_local_server(app, hostname, local_port, &password).await {
Ok(child) => Ok((
Some(child),
ServerReadyData {
url: local_url,
password: Some(password),
},
)),
Err(err) => Err(err),
}
} else {
Ok((
None,
ServerReadyData {
url: local_url,
password: None,
},
))
}
}
async fn spawn_local_server(
app: &AppHandle,
hostname: &str,
port: u32,
password: &str,
) -> Result<CommandChild, String> {
let child = spawn_sidecar(app, hostname, port, password);
let url = format!("http://{hostname}:{port}");
let timestamp = Instant::now();
loop {
if timestamp.elapsed() > Duration::from_secs(30) {
let _ = child.kill();
break Err(format!(
"Failed to spawn OpenCode Server. Logs:\n{}",
get_logs(app.clone()).await.unwrap()
));
}
tokio::time::sleep(Duration::from_millis(10)).await;
if check_server_health(&url, Some(password)).await {
println!("Server ready after {:?}", timestamp.elapsed());
break Ok(child);
}
}
}