chore: cleanup unused backend code after migration to server functions

backend/src/handlers/auth.rs

@@ -1,154 +1,2 @@
-use crate::AppState;
+// This file is intentionally empty as authentication is now handled by Server Functions.
-use axum::{
+// See shared/src/server_fns/auth.rs
-    extract::{State, Json},
-    http::StatusCode,
-    response::IntoResponse,
-};
-use serde::{Deserialize, Serialize};
-use utoipa::ToSchema;
-use axum_extra::extract::cookie::{Cookie, CookieJar, SameSite};
-use time::Duration;
-
-#[derive(Deserialize, ToSchema)]
-pub struct LoginRequest {
-    username: String,
-    password: String,
-    #[serde(default)]
-    remember_me: bool,
-}
-
-#[derive(Serialize, ToSchema)]
-pub struct UserResponse {
-    username: String,
-}
-
-#[utoipa::path(
-    post,
-    path = "/api/auth/login",
-    request_body = LoginRequest,
-    responses(
-        (status = 200, description = "Login successful"),
-        (status = 401, description = "Invalid credentials"),
-        (status = 500, description = "Internal server error")
-    )
-)]
-pub async fn login_handler(
-    State(state): State<AppState>,
-    jar: CookieJar,
-    Json(payload): Json<LoginRequest>,
-) -> impl IntoResponse {
-    tracing::info!("Login attempt for user: {}", payload.username);
-
-    let user = match state.db.get_user_by_username(&payload.username).await {
-        Ok(Some(u)) => u,
-        Ok(None) => {
-            tracing::warn!("Login failed: User not found for {}", payload.username);
-            return (StatusCode::UNAUTHORIZED, "Invalid credentials").into_response();
-        }
-        Err(e) => {
-            tracing::error!("DB error during login for {}: {}", payload.username, e);
-            return (StatusCode::INTERNAL_SERVER_ERROR, "Database error").into_response();
-        }
-    };
-
-    let (user_id, password_hash) = user;
-
-    match bcrypt::verify(&payload.password, &password_hash) {
-        Ok(true) => {
-            tracing::info!("Password verified for user: {}", payload.username);
-
-            // Create session
-            let token: String = (0..32).map(|_| {
-                use rand::{distributions::Alphanumeric, Rng};
-                rand::thread_rng().sample(Alphanumeric) as char
-            }).collect();
-
-            // Expiration: 30 days if remember_me is true, else 1 day
-            let expires_in = if payload.remember_me {
-                60 * 60 * 24 * 30
-            } else {
-                60 * 60 * 24
-            };
-
-            let expires_at = time::OffsetDateTime::now_utc().unix_timestamp() + expires_in;
-
-            if let Err(e) = state.db.create_session(user_id, &token, expires_at).await {
-                tracing::error!("Failed to create session for {}: {}", payload.username, e);
-                return (StatusCode::INTERNAL_SERVER_ERROR, "Failed to create session").into_response();
-            }
-
-            let mut cookie = Cookie::build(("auth_token", token))
-                .path("/")
-                .http_only(true)
-                .same_site(SameSite::Lax)
-                .build();
-
-            cookie.set_max_age(Duration::seconds(expires_in));
-
-            tracing::info!("Session created and cookie set for user: {}", payload.username);
-            (StatusCode::OK, jar.add(cookie), Json(UserResponse { username: payload.username })).into_response()
-        }
-        Ok(false) => {
-            tracing::warn!("Login failed: Invalid password for {}", payload.username);
-            (StatusCode::UNAUTHORIZED, "Invalid credentials").into_response()
-        }
-        Err(e) => {
-            tracing::error!("Bcrypt error for {}: {}", payload.username, e);
-            (StatusCode::INTERNAL_SERVER_ERROR, "Auth error").into_response()
-        }
-    }
-}
-
-#[utoipa::path(
-    post,
-    path = "/api/auth/logout",
-    responses(
-        (status = 200, description = "Logged out")
-    )
-)]
-pub async fn logout_handler(
-    State(state): State<AppState>,
-    jar: CookieJar,
-) -> impl IntoResponse {
-    if let Some(token) = jar.get("auth_token") {
-        let _ = state.db.delete_session(token.value()).await;
-    }
-
-    let cookie = Cookie::build(("auth_token", ""))
-        .path("/")
-        .http_only(true)
-        .max_age(Duration::seconds(-1)) // Expire immediately
-        .build();
-
-    (StatusCode::OK, jar.add(cookie), "Logged out").into_response()
-}
-
-#[utoipa::path(
-    get,
-    path = "/api/auth/check",
-    responses(
-        (status = 200, description = "Authenticated", body = UserResponse),
-        (status = 401, description = "Not authenticated")
-    )
-)]
-pub async fn check_auth_handler(
-    State(state): State<AppState>,
-    jar: CookieJar,
-) -> impl IntoResponse {
-    if let Some(token) = jar.get("auth_token") {
-        match state.db.get_session_user(token.value()).await {
-            Ok(Some(user_id)) => {
-                // Fetch username
-                // We need a helper in db.rs to get username by id, or we can use a direct query here if we don't want to change db.rs interface yet.
-                // But better to add `get_username_by_id` to db.rs
-                // For now let's query directly or via a new db method.
-                if let Ok(Some(username)) = state.db.get_username_by_id(user_id).await {
-                     return (StatusCode::OK, Json(UserResponse { username })).into_response();
-                }
-            },
-            _ => {} // Invalid session
-        }
-    }
-
-    StatusCode::UNAUTHORIZED.into_response()
-}

backend/src/handlers/setup.rs

@@ -1,125 +1,2 @@
-use crate::AppState;
+// This file is intentionally empty as setup is now handled by Server Functions.
-use axum::{
+// See shared/src/server_fns/auth.rs
-    extract::{State, Json},
-    http::StatusCode,
-    response::IntoResponse,
-};
-use serde::{Deserialize, Serialize};
-use utoipa::ToSchema;
-use axum_extra::extract::cookie::{Cookie, CookieJar, SameSite};
-use time::Duration;
-
-#[derive(Deserialize, ToSchema)]
-pub struct SetupRequest {
-    username: String,
-    password: String,
-}
-
-#[derive(Serialize, ToSchema)]
-pub struct SetupStatusResponse {
-    completed: bool,
-}
-
-#[utoipa::path(
-    get,
-    path = "/api/setup/status",
-    responses(
-        (status = 200, description = "Setup status", body = SetupStatusResponse)
-    )
-)]
-pub async fn get_setup_status_handler(State(state): State<AppState>) -> impl IntoResponse {
-    let completed = match state.db.has_users().await {
-        Ok(has) => has,
-        Err(e) => {
-            tracing::error!("DB error checking users: {}", e);
-            false
-        }
-    };
-    Json(SetupStatusResponse { completed }).into_response()
-}
-
-#[utoipa::path(
-    post,
-    path = "/api/setup",
-    request_body = SetupRequest,
-    responses(
-        (status = 200, description = "Setup completed and logged in"),
-        (status = 400, description = "Invalid request"),
-        (status = 403, description = "Setup already completed"),
-        (status = 500, description = "Internal server error")
-    )
-)]
-pub async fn setup_handler(
-    State(state): State<AppState>,
-    jar: CookieJar,
-    Json(payload): Json<SetupRequest>,
-) -> impl IntoResponse {
-    // 1. Check if setup is already completed (i.e., users exist)
-    match state.db.has_users().await {
-        Ok(true) => return (StatusCode::FORBIDDEN, "Setup already completed").into_response(),
-        Err(e) => {
-            tracing::error!("DB error checking users: {}", e);
-            return (StatusCode::INTERNAL_SERVER_ERROR, "Database error").into_response();
-        }
-        Ok(false) => {} // Proceed
-    }
-
-    // 2. Validate input
-    if payload.username.len() < 3 || payload.password.len() < 6 {
-        return (StatusCode::BAD_REQUEST, "Username must be at least 3 chars, password at least 6").into_response();
-    }
-
-    // 3. Create User
-    // Lower cost for faster login on low-power devices (MIPS routers etc.)
-    let password_hash = match bcrypt::hash(&payload.password, 6) {
-        Ok(h) => h,
-        Err(e) => {
-            tracing::error!("Failed to hash password: {}", e);
-            return (StatusCode::INTERNAL_SERVER_ERROR, "Failed to process password").into_response();
-        }
-    };
-
-    if let Err(e) = state.db.create_user(&payload.username, &password_hash).await {
-        tracing::error!("Failed to create user: {}", e);
-        return (StatusCode::INTERNAL_SERVER_ERROR, "Failed to create user").into_response();
-    }
-
-    // 4. Auto-Login (Create Session)
-    // Get the created user's ID
-    let user = match state.db.get_user_by_username(&payload.username).await {
-        Ok(Some(u)) => u,
-        Ok(None) => return (StatusCode::INTERNAL_SERVER_ERROR, "User created but not found").into_response(),
-        Err(e) => {
-            tracing::error!("DB error fetching new user: {}", e);
-            return (StatusCode::INTERNAL_SERVER_ERROR, "Database error").into_response();
-        }
-    };
-    let (user_id, _) = user;
-
-    // Create session token
-    let token: String = (0..32).map(|_| {
-        use rand::{distributions::Alphanumeric, Rng};
-        rand::thread_rng().sample(Alphanumeric) as char
-    }).collect();
-
-    // Default expiration: 1 day (since it's not "remember me")
-    let expires_in = 60 * 60 * 24;
-    let expires_at = time::OffsetDateTime::now_utc().unix_timestamp() + expires_in;
-
-    if let Err(e) = state.db.create_session(user_id, &token, expires_at).await {
-        tracing::error!("Failed to create session for new user: {}", e);
-        // Even if session fails, setup is technically complete, but login failed.
-        // We return OK but user will have to login manually.
-        return (StatusCode::OK, "Setup completed, please login").into_response();
-    }
-
-    let mut cookie = Cookie::build(("auth_token", token))
-        .path("/")
-        .http_only(true)
-        .same_site(SameSite::Lax)
-        .build();
-
-    cookie.set_max_age(Duration::seconds(expires_in));
-
-    (StatusCode::OK, jar.add(cookie), "Setup completed and logged in").into_response()
-}

backend/src/main.rs

@@ -25,7 +25,6 @@ use std::sync::Arc;
 use std::time::Duration;
 use tokio::sync::{broadcast, watch};
 use tower::ServiceBuilder;
-use tower_governor::GovernorLayer;
 use tower_http::{
     compression::{CompressionLayer, CompressionLevel},
     cors::CorsLayer,
@@ -48,7 +47,7 @@ pub struct AppState {
 }
 
 async fn auth_middleware(
-    state: axum::extract::State<AppState>,
+    _state: axum::extract::State<AppState>,
     jar: CookieJar,
     request: Request<Body>,
     next: Next,
@@ -113,13 +112,6 @@ struct Args {
 #[cfg(feature = "swagger")]
 #[derive(OpenApi)]
 #[openapi(
-    paths(
-        handlers::auth::login_handler,
-        handlers::auth::logout_handler,
-        handlers::auth::check_auth_handler,
-        handlers::setup::setup_handler,
-        handlers::setup::get_setup_status_handler
-    ),
     components(
         schemas(
             shared::AddTorrentRequest,
@@ -132,10 +124,6 @@ struct Args {
             shared::SetFilePriorityRequest,
             shared::SetLabelRequest,
             shared::GlobalLimitRequest,
-            handlers::auth::LoginRequest,
-            handlers::setup::SetupRequest,
-            handlers::setup::SetupStatusResponse,
-            handlers::auth::UserResponse
         )
     ),
     tags(
@@ -144,6 +132,7 @@ struct Args {
 )]
 struct ApiDoc;
 
+
 #[tokio::main]
 async fn main() {
     // Load .env file
@@ -423,6 +412,11 @@ async fn main() {
     #[cfg(feature = "swagger")]
     let app = app.merge(SwaggerUi::new("/swagger-ui").url("/api-docs/openapi.json", ApiDoc::openapi()));
 
+    // Setup & Auth Routes (cookie-based, stay as REST)
+    let scgi_path_for_ctx = args.socket.clone();
+    let db_for_ctx = db.clone();
+    let app = app
+        .route("/api/events", get(sse::sse_handler))
     // Setup & Auth Routes (cookie-based, stay as REST)
     let scgi_path_for_ctx = args.socket.clone();
     let db_for_ctx = db.clone();

backend/src/rate_limit.rs

@@ -1,16 +1,3 @@
-use governor::clock::QuantaInstant;
+// This file can be removed or repurposed if rate limiting is needed for other endpoints.
-use governor::middleware::NoOpMiddleware;
+// Login rate limiting is now handled within the server function or needs to be reimplemented
-use tower_governor::governor::GovernorConfig;
+// as a middleware for the server function endpoint.
-use tower_governor::governor::GovernorConfigBuilder;
-use tower_governor::key_extractor::SmartIpKeyExtractor;
-
-pub fn get_login_rate_limit_config() -> GovernorConfig<SmartIpKeyExtractor, NoOpMiddleware<QuantaInstant>> {
-    // 5 yanlış denemeden sonra bloklanır.
-    // Her yeni hak için 60 saniye (1 dakika) bekleme süresi.
-    GovernorConfigBuilder::default()
-        .key_extractor(SmartIpKeyExtractor)
-        .per_second(60) 
-        .burst_size(5)
-        .finish()
-        .unwrap()
-}

backend/src/sse.rs

@@ -4,7 +4,7 @@ use shared::xmlrpc::{
 use crate::AppState;
 use axum::extract::State;
 use axum::response::sse::{Event, Sse};
-use futures::stream::{self, Stream};
+use futures::stream::{self};
 use shared::{AppEvent, GlobalStats, Torrent, TorrentStatus};
 use std::convert::Infallible;
 use tokio_stream::StreamExt;