506 lines
18 KiB
Rust
506 lines
18 KiB
Rust
mod diff;
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mod handlers;
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#[cfg(feature = "push-notifications")]
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mod push;
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mod rate_limit;
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mod sse;
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use shared::xmlrpc;
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use axum::error_handling::HandleErrorLayer;
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use axum::{
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routing::{get, post},
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Router,
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middleware::{self, Next},
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response::Response,
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http::{StatusCode, Request},
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body::Body,
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};
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use axum_extra::extract::cookie::CookieJar;
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use clap::Parser;
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use dotenvy::dotenv;
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use shared::{AppEvent, Torrent};
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use std::net::SocketAddr;
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use std::sync::Arc;
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use std::time::Duration;
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use tokio::sync::{broadcast, watch};
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use tower::ServiceBuilder;
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use tower_http::{
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compression::{CompressionLayer, CompressionLevel},
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cors::CorsLayer,
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trace::TraceLayer,
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};
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#[cfg(feature = "swagger")]
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use utoipa::OpenApi;
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#[cfg(feature = "swagger")]
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use utoipa_swagger_ui::SwaggerUi;
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#[derive(Clone)]
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pub struct AppState {
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pub tx: Arc<watch::Sender<Vec<Torrent>>>,
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pub event_bus: broadcast::Sender<AppEvent>,
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pub scgi_socket_path: String,
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pub db: shared::db::Db,
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#[cfg(feature = "push-notifications")]
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pub push_store: push::PushSubscriptionStore,
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pub notify_poll: Arc<tokio::sync::Notify>,
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}
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async fn auth_middleware(
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_state: axum::extract::State<AppState>,
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jar: CookieJar,
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request: Request<Body>,
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next: Next,
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) -> Result<Response, StatusCode> {
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// Skip auth for public server functions
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let path = request.uri().path();
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if path.starts_with("/api/server_fns/Login")
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|| path.starts_with("/api/server_fns/login")
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|| path.starts_with("/api/server_fns/GetSetupStatus")
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|| path.starts_with("/api/server_fns/get_setup_status")
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|| path.starts_with("/api/server_fns/Setup")
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|| path.starts_with("/api/server_fns/setup")
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|| path.starts_with("/api/internal/")
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|| path.starts_with("/swagger-ui")
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|| path.starts_with("/api-docs")
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|| !path.starts_with("/api/")
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{
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return Ok(next.run(request).await);
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}
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// Check token
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if let Some(token) = jar.get("auth_token") {
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use jsonwebtoken::{decode, Validation, DecodingKey};
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use shared::server_fns::auth::Claims;
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let secret = std::env::var("JWT_SECRET").unwrap_or_else(|_| "secret".to_string());
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let validation = Validation::default();
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match decode::<Claims>(
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token.value(),
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&DecodingKey::from_secret(secret.as_bytes()),
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&validation,
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) {
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Ok(_) => return Ok(next.run(request).await),
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Err(_) => {} // Invalid token
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}
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}
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Err(StatusCode::UNAUTHORIZED)
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}
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#[derive(Parser, Debug)]
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#[command(author, version, about, long_about = None)]
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struct Args {
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/// Path to rTorrent SCGI socket
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#[arg(
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short,
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long,
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env = "RTORRENT_SOCKET",
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default_value = "/tmp/rtorrent.sock"
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)]
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socket: String,
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/// Port to listen on
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#[arg(short, long, env = "PORT", default_value_t = 3000)]
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port: u16,
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/// Database URL
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#[arg(long, env = "DATABASE_URL", default_value = "sqlite:vibetorrent.db")]
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db_url: String,
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/// Reset password for the specified user
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#[arg(long)]
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reset_password: Option<String>,
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}
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#[cfg(feature = "swagger")]
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#[derive(OpenApi)]
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#[openapi(
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components(
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schemas(
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shared::AddTorrentRequest,
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shared::TorrentActionRequest,
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shared::Torrent,
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shared::TorrentStatus,
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shared::TorrentFile,
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shared::TorrentPeer,
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shared::TorrentTracker,
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shared::SetFilePriorityRequest,
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shared::SetLabelRequest,
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shared::GlobalLimitRequest,
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)
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),
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tags(
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(name = "vibetorrent", description = "VibeTorrent API")
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)
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)]
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struct ApiDoc;
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#[tokio::main]
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async fn main() {
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// Load .env file
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let _ = dotenv();
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// initialize tracing with env filter (default to info)
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tracing_subscriber::fmt()
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.with_env_filter(
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tracing_subscriber::EnvFilter::from_default_env()
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.add_directive(tracing::Level::INFO.into()),
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)
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.init();
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// Parse CLI Args
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let args = Args::parse();
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// Initialize Database
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tracing::info!("Connecting to database: {}", args.db_url);
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// Redundant manual creation removed, shared::db handles it
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let db: shared::db::Db = match shared::db::Db::new(&args.db_url).await {
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Ok(db) => db,
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Err(e) => {
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tracing::error!("Failed to connect to database: {}", e);
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std::process::exit(1);
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}
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};
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tracing::info!("Database connected successfully.");
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// Handle Password Reset
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if let Some(username) = args.reset_password {
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tracing::info!("Resetting password for user: {}", username);
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// Check if user exists
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let user_result = db.get_user_by_username(&username).await;
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match user_result {
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Ok(Some((user_id, _))) => {
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// Generate random password
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use rand::{distributions::Alphanumeric, Rng};
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let new_password: String = rand::thread_rng()
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.sample_iter(&Alphanumeric)
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.take(12)
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.map(char::from)
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.collect();
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// Hash password (low cost for performance)
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let password_hash = match bcrypt::hash(&new_password, 6) {
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Ok(h) => h,
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Err(e) => {
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tracing::error!("Failed to hash password: {}", e);
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std::process::exit(1);
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}
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};
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// Update in DB
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if let Err(e) = db.update_password(user_id, &password_hash).await {
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tracing::error!("Failed to update password in DB: {}", e);
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std::process::exit(1);
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}
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println!("--------------------------------------------------");
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println!("Password reset successfully for user: {}", username);
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println!("New Password: {}", new_password);
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println!("--------------------------------------------------");
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// Invalidate existing sessions for security
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if let Err(e) = db.delete_all_sessions_for_user(user_id).await {
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tracing::warn!("Failed to invalidate existing sessions: {}", e);
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}
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std::process::exit(0);
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},
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Ok(None) => {
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tracing::error!("User '{}' not found.", username);
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std::process::exit(1);
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},
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Err(e) => {
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tracing::error!("Database error: {}", e);
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std::process::exit(1);
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}
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}
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}
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tracing::info!("Starting VibeTorrent Backend...");
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tracing::info!("Socket: {}", args.socket);
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tracing::info!("Port: {}", args.port);
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// Force linking of server functions from shared crate for registration on Mac
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{
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use shared::server_fns::auth::*;
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let _ = get_setup_status;
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let _ = setup;
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let _ = login;
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let _ = logout;
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let _ = get_user;
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tracing::info!("Server functions linked successfully.");
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}
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// ... rest of the main function ...
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// Startup Health Check
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let socket_path = std::path::Path::new(&args.socket);
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if !socket_path.exists() {
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tracing::error!("CRITICAL: rTorrent socket not found at {:?}.", socket_path);
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tracing::error!(
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"HINT: Make sure rTorrent is running and the SCGI socket is enabled in .rtorrent.rc"
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);
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tracing::error!(
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"HINT: You can configure the socket path via --socket ARG or RTORRENT_SOCKET ENV."
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);
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tracing::error!("FATAL: VibeTorrent cannot start without a running rTorrent instance. Exiting.");
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std::process::exit(1);
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} else {
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tracing::info!("Socket file exists. Testing connection...");
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let client = xmlrpc::RtorrentClient::new(&args.socket);
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// We use a lightweight call to verify connectivity
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let params: Vec<xmlrpc::RpcParam> = vec![];
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match client.call("system.client_version", ¶ms).await {
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Ok(xml) => {
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let version = xmlrpc::parse_string_response(&xml).unwrap_or(xml);
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tracing::info!("Connected to rTorrent successfully. Version: {}", version);
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}
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Err(e) => {
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tracing::error!("CRITICAL: Socket exists but failed to connect to rTorrent: {}", e);
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tracing::error!("FATAL: Ensure rTorrent is fully started and the socket has correct permissions. Exiting.");
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std::process::exit(1);
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}
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}
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}
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// Channel for latest state (for new clients)
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let (tx, _rx) = watch::channel(vec![]);
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let tx = Arc::new(tx);
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// Channel for Events (Diffs)
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let (event_bus, _) = broadcast::channel::<AppEvent>(1024);
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#[cfg(feature = "push-notifications")]
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let push_store = match push::PushSubscriptionStore::with_db(&db).await {
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Ok(store) => store,
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Err(e) => {
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tracing::error!("Failed to initialize push store: {}", e);
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push::PushSubscriptionStore::new()
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}
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};
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#[cfg(not(feature = "push-notifications"))]
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let _push_store = ();
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let notify_poll = Arc::new(tokio::sync::Notify::new());
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let app_state = AppState {
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tx: tx.clone(),
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event_bus: event_bus.clone(),
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scgi_socket_path: args.socket.clone(),
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db: db.clone(),
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#[cfg(feature = "push-notifications")]
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push_store,
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notify_poll: notify_poll.clone(),
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};
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// Spawn background task to poll rTorrent
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let tx_clone = tx.clone();
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let event_bus_tx = event_bus.clone();
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let socket_path = args.socket.clone(); // Clone for background task
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#[cfg(feature = "push-notifications")]
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let push_store_clone = app_state.push_store.clone();
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let notify_poll_clone = notify_poll.clone();
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tokio::spawn(async move {
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let client = xmlrpc::RtorrentClient::new(&socket_path);
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let mut previous_torrents: Vec<Torrent> = Vec::new();
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let mut consecutive_errors = 0;
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let mut backoff_duration = Duration::from_secs(1);
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loop {
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// Determine polling interval based on active clients
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let active_clients = event_bus_tx.receiver_count();
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let loop_interval = if active_clients > 0 {
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Duration::from_secs(1)
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} else {
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Duration::from_secs(60)
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};
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// 1. Fetch Torrents
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let torrents_result = sse::fetch_torrents(&client).await;
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// 2. Fetch Global Stats
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let stats_result = sse::fetch_global_stats(&client).await;
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// Handle Torrents
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match torrents_result {
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Ok(new_torrents) => {
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// Check if we recovered from an error state
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if consecutive_errors > 0 {
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tracing::info!(
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"Reconnected to rTorrent after {} failures.",
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consecutive_errors
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);
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let _ =
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event_bus_tx.send(AppEvent::Notification(shared::SystemNotification {
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level: shared::NotificationLevel::Success,
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message: "Reconnected to rTorrent".to_string(),
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}));
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consecutive_errors = 0;
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backoff_duration = Duration::from_secs(1);
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}
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// Update latest state
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let _ = tx_clone.send(new_torrents.clone());
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// Calculate Diff and Broadcasting
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let now = std::time::SystemTime::now()
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.duration_since(std::time::UNIX_EPOCH)
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.unwrap()
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.as_secs();
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match diff::diff_torrents(&previous_torrents, &new_torrents) {
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diff::DiffResult::FullUpdate => {
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let _ = event_bus_tx.send(AppEvent::FullList(new_torrents.clone(), now));
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}
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diff::DiffResult::Partial(updates) => {
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for update in updates {
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// Check if this is a torrent completion notification
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#[cfg(feature = "push-notifications")]
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if let AppEvent::Notification(ref notif) = update {
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if notif.message.contains("tamamlandı") {
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// Send push notification in background
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let push_store = push_store_clone.clone();
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let title = "Torrent Tamamlandı".to_string();
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let body = notif.message.clone();
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tokio::spawn(async move {
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if let Err(e) = push::send_push_notification(
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&push_store,
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&title,
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&body,
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)
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.await
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{
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tracing::error!("Failed to send push notification: {}", e);
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}
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});
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}
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}
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let _ = event_bus_tx.send(update);
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}
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}
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diff::DiffResult::NoChange => {}
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}
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previous_torrents = new_torrents;
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// Success case: wait for the determined interval OR a wakeup notification
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tokio::select! {
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_ = tokio::time::sleep(loop_interval) => {},
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_ = notify_poll_clone.notified() => {
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tracing::debug!("Background loop awakened by new client connection");
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}
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}
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}
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Err(e) => {
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tracing::error!("Error fetching torrents in background: {}", e);
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consecutive_errors += 1;
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// If this is the first error after success (or startup), notify clients
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if consecutive_errors == 1 {
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let _ =
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event_bus_tx.send(AppEvent::Notification(shared::SystemNotification {
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level: shared::NotificationLevel::Error,
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message: format!("Lost connection to rTorrent: {}", e),
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}));
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}
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// Exponential backoff with a cap of 30 seconds
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backoff_duration = std::cmp::min(backoff_duration * 2, Duration::from_secs(30));
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tracing::warn!(
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"Backoff: Sleeping for {:?} due to rTorrent error.",
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backoff_duration
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);
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tokio::time::sleep(backoff_duration).await;
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}
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}
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// Handle Stats
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if let Ok(stats) = stats_result {
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let _ = event_bus_tx.send(AppEvent::Stats(stats));
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}
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}
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});
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let app = Router::new();
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#[cfg(feature = "swagger")]
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let app = app.merge(SwaggerUi::new("/swagger-ui").url("/api-docs/openapi.json", ApiDoc::openapi()));
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// Setup & Auth Routes (cookie-based, stay as REST)
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// Setup & Auth Routes (cookie-based, stay as REST)
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let scgi_path_for_ctx = args.socket.clone();
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let db_for_ctx = db.clone();
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let app = app
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.route("/api/events", get(sse::sse_handler))
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.route("/api/internal/torrent-finished", post(handlers::notifications::torrent_finished_handler))
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.route("/api/server_fns/{*fn_name}", post({
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let scgi_path = scgi_path_for_ctx.clone();
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let db = db_for_ctx.clone();
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move |req: Request<Body>| {
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let scgi_path = scgi_path.clone();
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let db = db.clone();
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leptos_axum::handle_server_fns_with_context(
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move || {
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leptos::context::provide_context(shared::ServerContext {
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scgi_socket_path: scgi_path.clone(),
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});
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leptos::context::provide_context(shared::DbContext {
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db: db.clone(),
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});
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},
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req,
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)
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}
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}))
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.fallback(handlers::static_handler);
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let app = app
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.layer(middleware::from_fn_with_state(app_state.clone(), auth_middleware))
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.layer(TraceLayer::new_for_http())
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.layer(
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CompressionLayer::new()
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.br(false)
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.gzip(true)
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.quality(CompressionLevel::Fastest),
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)
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.layer(
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ServiceBuilder::new()
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.layer(HandleErrorLayer::new(handlers::handle_timeout_error))
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.layer(tower::timeout::TimeoutLayer::new(Duration::from_secs(30))),
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)
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.layer(CorsLayer::permissive())
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.with_state(app_state);
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let addr = SocketAddr::from(([0, 0, 0, 0], args.port));
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tracing::info!("Backend attempting to listen on {}", addr);
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let listener = match tokio::net::TcpListener::bind(addr).await {
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Ok(l) => l,
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Err(e) => {
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tracing::error!("FATAL: Failed to bind to address {}: {}", addr, e);
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if e.kind() == std::io::ErrorKind::AddrInUse {
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tracing::error!("HINT: Port {} is already in use. Stop the existing process or use --port to specify a different port.", args.port);
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}
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std::process::exit(1);
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}
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};
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tracing::info!("Backend listening on {}", addr);
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if let Err(e) = axum::serve(
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listener,
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app.into_make_service_with_connect_info::<SocketAddr>(),
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)
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.await
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{
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tracing::error!("Server error: {}", e);
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std::process::exit(1);
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}
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}
|