Fixed group scope

Cargo.lock

@@ -61,8 +61,9 @@ checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
 
 [[package]]
 name = "amnezia-fellow"
-version = "0.1.4"
+version = "1.0.1"
 dependencies = [
+ "async-trait",
  "base64 0.22.1",
  "cot",
  "curve25519-dalek",

Cargo.toml

@@ -1,11 +1,12 @@
 [package]
 name = "amnezia-fellow"
-version = "0.1.5"
+version = "1.0.1"
 edition = "2024"
-description = "Amnezia VPN client manager with SSO, SQLite, and Kubernetes Secret sync"
+description = "Amnezia VPN client manager with SSO, SQLite/PostgreSQL, and Kubernetes Secret sync"
 
 [dependencies]
-cot = { version = "0.6.0", default-features = false, features = ["sqlite", "json", "openapi", "swagger-ui"] }
+async-trait = "0.1"
+cot = { version = "0.6.0", default-features = false, features = ["sqlite", "postgres", "json", "openapi", "swagger-ui"] }
 schemars = { version = "0.9", features = ["derive"] }
 serde = { version = "1", features = ["derive"] }
 openidconnect = "4.0"

README.md

@@ -2,7 +2,7 @@
 
 Amnezia VPN client manager written in Rust on top of the public [`cot`](https://cot.rs) framework.
 
-The app uses SQLite as the source of truth, authenticates users through OIDC/SSO, renders AmneziaWG client peers into a Kubernetes Secret, and avoids updating that Secret when the rendered content is byte-for-byte identical.
+The app uses SQLite or PostgreSQL as the source of truth, authenticates users through OIDC/SSO, renders AmneziaWG client peers into a Kubernetes Secret, and avoids updating that Secret when the rendered content is byte-for-byte identical.
 
 ## Quick Start
 
@@ -53,17 +53,20 @@ The OIDC groups claim is expected to be `groups`.
 
 ## VPN Data Model
 
-SQLite stores all client data needed to restore configs:
+The database stores all client data needed to restore configs:
 
 - owner user id
 - display name
 - assigned IPv4 address
 - public key
 - private key
+- optional owner-scoped connectivity group
 - enabled flag
 - created/updated timestamps
 
-The Kubernetes Secret is derived from the database. Active clients are rendered into one configured Secret key, `peers.conf` by default.
+The Kubernetes Secret is derived from the database. Active clients are rendered
+into `peers.conf`; exact same-group IPv4 pairs are rendered into
+`policy.conf`. Clients without a group are isolated from other VPN clients.
 
 ## Kubernetes Sync
 
@@ -95,7 +98,8 @@ All settings use `AMNEZIA_FELLOW_` prefix. Priority is:
 
 | Variable | Description | Default |
 | --- | --- | --- |
-| `AMNEZIA_FELLOW_DATABASE_URL` | SQLite connection URL | `sqlite://amnezia-fellow.sqlite3?mode=rwc` |
+| `AMNEZIA_FELLOW_DATABASE_URL` | SQLite or PostgreSQL connection URL. PostgreSQL URLs must start with `postgresql://`. | `sqlite://amnezia-fellow.sqlite3?mode=rwc` |
+| `AMNEZIA_FELLOW_MIGRATE_SQLITE` | Optional SQLite path/URL imported into PostgreSQL once on startup | empty |
 | `AMNEZIA_FELLOW_LOG_LEVEL` | Tracing filter | `info` |
 | `AMNEZIA_FELLOW_AUTH_PASSWORD_ENABLED` | Enable password login | `true` |
 | `AMNEZIA_FELLOW_AUTH_SSO_ENABLED` | Enable OIDC login | `false` |
@@ -118,6 +122,23 @@ All settings use `AMNEZIA_FELLOW_` prefix. Priority is:
 | `AMNEZIA_FELLOW_TELEGRAM_BOT_USERNAME` | Telegram bot username, with or without `@` | empty |
 | `AMNEZIA_FELLOW_TELEGRAM_BOT_TOKEN` | Telegram bot token used to verify Web App `initData` | empty |
 
+## PostgreSQL Migration
+
+To move from SQLite to PostgreSQL, start the app with a PostgreSQL database URL
+and point `AMNEZIA_FELLOW_MIGRATE_SQLITE` at the existing SQLite file:
+
+```bash
+AMNEZIA_FELLOW_DATABASE_URL=postgresql://user:pass@postgres:5432/amnezia_fellow
+AMNEZIA_FELLOW_MIGRATE_SQLITE=/data/amnezia-fellow.sqlite3
+```
+
+On startup, the app runs its migrations on PostgreSQL, opens the SQLite source
+read/write, applies any missing app migrations there, copies config entries,
+database sessions, users, OIDC links, Telegram link state, and VPN clients,
+then writes an import marker into PostgreSQL. If the marker already exists, the
+import is skipped. If PostgreSQL already contains app data but has no marker,
+startup fails instead of merging two databases implicitly.
+
 ## Telegram Bot
 
 Configure the bot through the admin Settings page or the matching environment variables:
@@ -138,18 +159,20 @@ delivered.
 
 ## API
 
-The JSON API is session-authenticated:
+The JSON API is session-authenticated unless noted:
 
 - `GET /api/me`
 - `GET /api/vpn-clients`
 - `GET /api/vpn-status`
 - `GET /api/telegram-link/status`
+- `POST /api/telegram-login/webapp` (public Telegram `initData` login)
 - `POST /api/telegram-link/webapp`
 - `POST /api/telegram-link/start`
 - `POST /api/telegram-link/decline`
 - `POST /api/telegram-link/unlink`
 - `POST /api/vpn-clients`
 - `POST /api/vpn-clients/{id}/enabled`
+- `POST /api/vpn-clients/{id}/group` changes the group and rotates the client key pair
 - `DELETE /api/vpn-clients/{id}`
 - `GET /api/vpn-clients/{id}/config` returns `servers[]` with one raw AWG config and one Amnezia `vpn://` import link per registered endpoint
 - `POST /api/vpn-clients/sync`

src/admin/views.rs

@@ -84,6 +84,11 @@ fn config_display_entries(config: &AppConfig, sources: &ConfigSources) -> Vec<Co
             config.database_url.clone(),
             defaults.database_url.clone()
         ),
+        entry!(
+            migrate_sqlite,
+            config.migrate_sqlite.clone(),
+            defaults.migrate_sqlite.clone()
+        ),
         entry!(
             oidc_issuer,
             config.oidc_issuer.clone(),

src/api/mod.rs

@@ -87,11 +87,13 @@ async fn me_handler(session: Session, db: Database) -> cot::Result<cot::response
 struct VpnClientsResponse {
     role: String,
     clients: Vec<vpn::VpnClientView>,
+    groups: Vec<String>,
 }
 
 #[derive(Debug, Deserialize, JsonSchema)]
 struct CreateVpnClientRequest {
     name: String,
+    group_name: Option<String>,
 }
 
 #[derive(Debug, Serialize, JsonSchema)]
@@ -106,6 +108,11 @@ struct SetEnabledRequest {
     enabled: bool,
 }
 
+#[derive(Debug, Deserialize, JsonSchema)]
+struct SetGroupRequest {
+    group_name: Option<String>,
+}
+
 #[derive(Debug, Serialize, JsonSchema)]
 struct DeleteVpnClientResponse {
     sync: vpn::SecretSyncResult,
@@ -162,6 +169,11 @@ struct TelegramLinkResponse {
     status: TelegramLinkStatusResponse,
 }
 
+#[derive(Debug, Serialize, JsonSchema)]
+struct TelegramLoginResponse {
+    redirect_to: String,
+}
+
 #[derive(Debug, Deserialize, JsonSchema)]
 struct TelegramWebAppLinkRequest {
     init_data: String,
@@ -184,6 +196,14 @@ async fn vpn_clients_handler(
         .await
         .map_err(|e| cot::Error::internal(format!("failed to list clients: {e}")))?;
     let owner_map = owner_view_map(&db, &clients).await?;
+    let mut groups = clients
+        .iter()
+        .filter(|client| client.owner_user_id() == user.id)
+        .filter_map(vpn::VpnClient::group_name_str)
+        .map(str::to_owned)
+        .collect::<Vec<_>>();
+    groups.sort();
+    groups.dedup();
     let clients = clients
         .into_iter()
         .map(|client| client_view_with_owner(client, &owner_map))
@@ -192,6 +212,7 @@ async fn vpn_clients_handler(
     Json(VpnClientsResponse {
         role: user.role.code().to_owned(),
         clients,
+        groups,
     })
     .into_response()
 }
@@ -292,6 +313,71 @@ async fn telegram_link_webapp_handler(
     .into_response()
 }
 
+async fn telegram_login_webapp_handler(
+    session: Session,
+    db: Database,
+    Json(request): Json<TelegramWebAppLinkRequest>,
+) -> cot::Result<cot::response::Response> {
+    let (config, _) = AppConfig::load_with_db(&db).await;
+    if !config.telegram_bot_enabled {
+        return Ok(json_error_typed(
+            cot::http::StatusCode::CONFLICT,
+            "telegram_disabled",
+            "Telegram is disabled",
+            "Telegram integration is disabled by the administrator.",
+            "",
+        ));
+    }
+
+    let telegram_user = match telegram::validate_web_app_init_data(
+        &request.init_data,
+        &config.telegram_bot_token,
+        TELEGRAM_INIT_DATA_MAX_AGE,
+    ) {
+        Ok(user) => user,
+        Err(e) => {
+            return Ok(json_error_typed(
+                cot::http::StatusCode::BAD_REQUEST,
+                "telegram_webapp_auth_failed",
+                "Telegram verification failed",
+                "Could not verify Telegram Web App data.",
+                &e.to_string(),
+            ));
+        }
+    };
+
+    let telegram_id = telegram_user.id.to_string();
+    let Some(user) = User::get_by_telegram_id(&db, &telegram_id)
+        .await
+        .map_err(|e| cot::Error::internal(format!("failed to load Telegram user: {e}")))?
+    else {
+        return Ok(json_error_typed(
+            cot::http::StatusCode::UNAUTHORIZED,
+            "telegram_account_not_linked",
+            "Telegram is not linked",
+            "This Telegram account is not connected to any VPN account.",
+            "",
+        ));
+    };
+
+    if !user.is_active() {
+        return Ok(json_error_typed(
+            cot::http::StatusCode::FORBIDDEN,
+            "user_inactive",
+            "Account is inactive",
+            "This account is inactive.",
+            "",
+        ));
+    }
+
+    auth::login(&session, user.id_val()).await?;
+
+    Json(TelegramLoginResponse {
+        redirect_to: "/configs".to_owned(),
+    })
+    .into_response()
+}
+
 async fn telegram_link_start_handler(
     session: Session,
     db: Database,
@@ -397,6 +483,7 @@ async fn create_vpn_client_handler(
         &db,
         user.id,
         &request.name,
+        request.group_name.as_deref(),
         &config.vpn_client_cidr,
     )
     .await
@@ -423,6 +510,53 @@ async fn create_vpn_client_handler(
     .into_response()
 }
 
+async fn set_vpn_client_group_handler(
+    session: Session,
+    db: Database,
+    Path(path): Path<ClientPath>,
+    Json(request): Json<SetGroupRequest>,
+) -> cot::Result<cot::response::Response> {
+    let user = match auth::require_user_or_redirect(&session, &db).await {
+        Ok(user) => user,
+        Err(_) => {
+            return Ok(json_error(
+                cot::http::StatusCode::UNAUTHORIZED,
+                "not authenticated",
+            ));
+        }
+    };
+
+    let Some(mut client) = vpn::VpnClient::get_visible(&db, &user, path.id)
+        .await
+        .map_err(|e| cot::Error::internal(format!("failed to load client: {e}")))?
+    else {
+        return Ok(json_error(cot::http::StatusCode::NOT_FOUND, "not found"));
+    };
+
+    if let Err(e) = client
+        .set_group_and_rotate_keys(&db, request.group_name.as_deref())
+        .await
+    {
+        return Ok(json_error_typed(
+            cot::http::StatusCode::BAD_REQUEST,
+            "client_group_update_failed",
+            "Could not change group",
+            "The client group was not changed.",
+            &e.to_string(),
+        ));
+    }
+    let (config, _) = AppConfig::load_with_db(&db).await;
+    let (sync, notice) = sync_after_client_mutation(&db, &config).await;
+    let owner_map = owner_view_map(&db, std::slice::from_ref(&client)).await?;
+
+    Json(MutateVpnClientResponse {
+        client: client_view_with_owner(client, &owner_map),
+        sync,
+        notice,
+    })
+    .into_response()
+}
+
 async fn set_vpn_client_enabled_handler(
     session: Session,
     db: Database,
@@ -831,6 +965,11 @@ impl App for ApiApp {
                 api_post(telegram_link_webapp_handler),
                 "api_telegram_link_webapp",
             ),
+            Route::with_api_handler_and_name(
+                "/telegram-login/webapp",
+                api_post(telegram_login_webapp_handler),
+                "api_telegram_login_webapp",
+            ),
             Route::with_api_handler_and_name(
                 "/telegram-link/start",
                 api_post(telegram_link_start_handler),
@@ -856,6 +995,11 @@ impl App for ApiApp {
                 api_post(set_vpn_client_enabled_handler),
                 "api_vpn_client_enabled",
             ),
+            Route::with_api_handler_and_name(
+                "/vpn-clients/{id}/group",
+                api_post(set_vpn_client_group_handler),
+                "api_vpn_client_group",
+            ),
             Route::with_api_handler_and_name(
                 "/vpn-clients/{id}",
                 api_delete(delete_vpn_client_handler),

src/config.rs

@@ -47,6 +47,15 @@ impl ConfigEntry {
     pub fn new(key: String, value: String) -> Self {
         Self { key, value }
     }
+
+    pub fn key_str(&self) -> &str {
+        &self.key
+    }
+
+    pub async fn get_by_key(db: &Database, key: &str) -> cot::db::Result<Option<Self>> {
+        let key = key.to_owned();
+        cot::db::query!(ConfigEntry, $key == key).get(db).await
+    }
 }
 
 // ---------------------------------------------------------------------------
@@ -87,6 +96,7 @@ pub mod db_migrations {
 
 pub struct ConfigSources {
     pub database_url: ConfigSource,
+    pub migrate_sqlite: ConfigSource,
     pub oidc_issuer: ConfigSource,
     pub oidc_client_id: ConfigSource,
     pub oidc_client_secret: ConfigSource,
@@ -116,6 +126,7 @@ impl Default for ConfigSources {
     fn default() -> Self {
         Self {
             database_url: ConfigSource::Default,
+            migrate_sqlite: ConfigSource::Default,
             oidc_issuer: ConfigSource::Default,
             oidc_client_id: ConfigSource::Default,
             oidc_client_secret: ConfigSource::Default,
@@ -194,8 +205,10 @@ macro_rules! impl_env_overrides {
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct AppConfig {
-    /// SQLite connection URL.
+    /// SQLite or PostgreSQL connection URL.
     pub database_url: String,
+    /// Optional SQLite database path/URL copied into PostgreSQL on startup.
+    pub migrate_sqlite: String,
     /// OIDC issuer URL.
     pub oidc_issuer: String,
     /// OIDC client ID.
@@ -248,6 +261,7 @@ impl Default for AppConfig {
     fn default() -> Self {
         Self {
             database_url: "sqlite://amnezia-fellow.sqlite3?mode=rwc".into(),
+            migrate_sqlite: String::new(),
             oidc_issuer: String::new(),
             oidc_client_id: String::new(),
             oidc_client_secret: String::new(),
@@ -277,6 +291,7 @@ impl Default for AppConfig {
 
 impl_env_overrides!(
     database_url,
+    migrate_sqlite,
     oidc_issuer,
     oidc_client_id,
     oidc_client_secret,
@@ -355,6 +370,7 @@ impl AppConfig {
         }
 
         apply_db_field!(database_url);
+        apply_db_field!(migrate_sqlite);
         apply_db_field!(oidc_issuer);
         apply_db_field!(oidc_client_id);
         apply_db_field!(oidc_client_secret);

src/i18n/phrases.rs

@@ -42,6 +42,9 @@ translations! {
     login_submit:             "Sign in"                     , "Войти";
     login_disabled:           "Login is currently disabled." , "Вход сейчас отключён.";
     login_invalid:            "Invalid username or password." , "Неверное имя пользователя или пароль.";
+    login_telegram_wait:      "Signing in with Telegram..." , "Входим через Telegram...";
+    login_telegram_fallback:  "Open the regular login page" , "Открыть обычный вход";
+    login_telegram_failed:    "Telegram login failed. Use regular login." , "Не удалось войти через Telegram. Используйте обычный вход.";
 
     // Logout
     nav_logout:               "Logout"                      , "Выход";
@@ -140,6 +143,14 @@ translations! {
     configs_active_keys:      "Active"                      , "Активные";
     configs_total_keys:       "Total"                       , "Всего";
     configs_new_key:          "New key"                     , "Новый ключ";
+    configs_group:            "Group"                       , "Группа";
+    configs_group_isolated:   "Isolated"                    , "Изолирован";
+    configs_group_placeholder: "Leave empty for isolation"  , "Оставьте пустым для изоляции";
+    configs_group_hint:       "Clients with the same group name can connect to each other on the same VPN server." , "Клиенты с одинаковой группой могут обращаться друг к другу на одном VPN-сервере.";
+    configs_change_group:     "Change group"                , "Сменить группу";
+    configs_group_rotation_warning: "Changing the group rotates this client's keys. The old config will stop working; download or import a new one." , "При смене группы ключи клиента будут заменены. Старый конфиг перестанет работать — скачайте или импортируйте новый.";
+    configs_group_rotation_confirm: "Change the group and invalidate the old client config?" , "Сменить группу и сделать старый конфиг клиента недействительным?";
+    configs_group_changed:    "Group changed. Update the client config." , "Группа изменена. Обновите конфиг клиента.";
     configs_empty_title:      "Create your first key"       , "Создайте первый ключ";
     configs_empty_hint:       "It will appear here after creation." , "После создания он появится здесь.";
     configs_enabled_state:    "active"                      , "активен";
@@ -169,7 +180,7 @@ translations! {
     telegram_open_bot:        "Open bot"                    , "Открыть бота";
     telegram_guide_start:     "Open the bot and send /start once if you have not done it before." , "Откройте бота и один раз отправьте /start, если ещё не делали этого.";
     telegram_guide_get_id:    "Send the secret code below to the bot." , "Отправьте боту секретный код ниже.";
-    telegram_guide_paste:     "Return here and refresh the status." , "Вернитесь сюда и обновите статус.";
+    telegram_guide_paste:     "Return here; the status updates automatically." , "Вернитесь сюда; статус обновится автоматически.";
     telegram_secret_label:    "Secret code"                 , "Секретный код";
     telegram_save:            "Save Telegram"               , "Сохранить Telegram";
     telegram_saved:           "Telegram connected."         , "Telegram подключён.";

src/main.rs

@@ -4,12 +4,14 @@ mod auth;
 mod config;
 mod i18n;
 mod oidc;
+mod sqlite_migration;
 mod telegram;
 mod user;
 mod vpn;
 
 use std::sync::Arc;
 
+use async_trait::async_trait;
 use cot::auth::PasswordVerificationResult;
 use cot::cli::CliMetadata;
 use cot::common_types::Password;
@@ -21,7 +23,7 @@ use cot::db::Database;
 use cot::form::{Form, FormResult};
 use cot::html::Html;
 use cot::middleware::SessionMiddleware;
-use cot::project::RegisterAppsContext;
+use cot::project::{ProjectContext, RegisterAppsContext};
 use cot::request::extractors::{RequestForm, UrlQuery};
 use cot::response::IntoResponse;
 use cot::router::method::get;
@@ -65,14 +67,22 @@ struct ClientPortalTemplate {
     app_version: &'static str,
 }
 
+#[derive(Debug, Template)]
+#[template(path = "telegram_login.html")]
+struct TelegramLoginTemplate {
+    t: &'static Translations,
+}
+
 async fn configs_page(
     session: Session,
     db: Database,
     i18n: I18n,
 ) -> cot::Result<cot::response::Response> {
-    let user = match auth::require_user_or_redirect(&session, &db).await {
-        Ok(user) => user,
-        Err(response) => return Ok(response),
+    let user = match auth::get_session_user(&session, &db).await {
+        Some(user) => user,
+        None => {
+            return Html::new(TelegramLoginTemplate { t: i18n.t }.render()?).into_response();
+        }
     };
 
     let is_admin = user.role == auth::Role::Admin;
@@ -181,11 +191,19 @@ struct AmneziaFellowApp {
     config: Arc<AppConfig>,
 }
 
+#[async_trait]
 impl App for AmneziaFellowApp {
     fn name(&self) -> &'static str {
         env!("CARGO_PKG_NAME")
     }
 
+    async fn init(&self, context: &mut ProjectContext) -> cot::Result<()> {
+        if let Some(db) = context.try_database() {
+            sqlite_migration::run_if_requested(&self.config, db).await?;
+        }
+        Ok(())
+    }
+
     fn router(&self) -> Router {
         Router::with_urls([
             Route::with_handler_and_name(
@@ -296,8 +314,11 @@ impl Project for AmneziaFellowProject {
                 "  Priority: env var > DB override > compiled default.\n",
                 "\n",
                 "  Database (required for most features):\n",
-                "    AMNEZIA_FELLOW_DATABASE_URL    SQLite connection URL\n",
+                "    AMNEZIA_FELLOW_DATABASE_URL    SQLite or PostgreSQL connection URL\n",
                 "                                   Example: sqlite:///data/amnezia-fellow.sqlite3?mode=rwc\n",
+                "                                   Example: postgresql://user:pass@postgres:5432/amnezia_fellow\n",
+                "    AMNEZIA_FELLOW_MIGRATE_SQLITE SQLite path/URL to import into PostgreSQL once\n",
+                "                                   Example: /data/amnezia-fellow.sqlite3\n",
                 "\n",
                 "  Server:\n",
                 "    AMNEZIA_FELLOW_LOG_LEVEL       Tracing filter (default: info)\n",

src/sqlite_migration.rs

@@ -0,0 +1,186 @@
+use std::path::Path;
+use std::time::{SystemTime, UNIX_EPOCH};
+
+use cot::db::migrations::{self, MigrationEngine, SyncDynMigration};
+use cot::db::{Database, Model};
+use cot::session::db::Session as CotSession;
+
+use crate::config::{AppConfig, ConfigEntry};
+use crate::user::{OidcLink, User};
+use crate::vpn::VpnClient;
+
+const MARKER_KEY: &str = "sqlite_migration_completed_at";
+const SOURCE_KEY: &str = "sqlite_migration_source";
+
+pub async fn run_if_requested(config: &AppConfig, target_db: &Database) -> cot::Result<()> {
+    let source = config.migrate_sqlite.trim();
+    if source.is_empty() {
+        return Ok(());
+    }
+
+    if !is_postgres_url(&config.database_url) {
+        tracing::warn!(
+            "AMNEZIA_FELLOW_MIGRATE_SQLITE is set but the active database is not PostgreSQL; skipping SQLite import"
+        );
+        return Ok(());
+    }
+
+    if ConfigEntry::get_by_key(target_db, MARKER_KEY)
+        .await
+        .map_err(internal)?
+        .is_some()
+    {
+        tracing::info!("SQLite import marker exists; skipping SQLite import");
+        return Ok(());
+    }
+
+    if target_has_app_data(target_db).await? {
+        return Err(cot::Error::internal(
+            "PostgreSQL target already contains amnezia-fellow data and has no SQLite import marker; refusing to merge automatically",
+        ));
+    }
+
+    let source_url = sqlite_source_url(source)?;
+    tracing::info!("Importing amnezia-fellow data from SQLite into PostgreSQL");
+
+    let source_db = Database::new(source_url)
+        .await
+        .map_err(|e| cot::Error::internal(format!("failed to open SQLite source: {e}")))?;
+
+    run_app_migrations(&source_db).await?;
+    copy_app_data(&source_db, target_db).await?;
+    reset_postgres_sequences(target_db).await?;
+    write_marker(target_db, source).await?;
+
+    tracing::info!("SQLite import into PostgreSQL completed");
+    Ok(())
+}
+
+fn is_postgres_url(url: &str) -> bool {
+    url.starts_with("postgresql:")
+}
+
+fn sqlite_source_url(source: &str) -> cot::Result<String> {
+    if source.starts_with("sqlite:") {
+        return Ok(source.to_owned());
+    }
+
+    if !Path::new(source).exists() {
+        return Err(cot::Error::internal(format!(
+            "SQLite import source does not exist: {source}"
+        )));
+    }
+
+    let prefix = if Path::new(source).is_absolute() {
+        "sqlite://"
+    } else {
+        "sqlite:"
+    };
+    Ok(format!("{prefix}{source}?mode=rw"))
+}
+
+async fn run_app_migrations(db: &Database) -> cot::Result<()> {
+    let engine = MigrationEngine::new(app_migrations())
+        .map_err(|e| cot::Error::internal(format!("failed to build migration engine: {e}")))?;
+    engine
+        .run(db)
+        .await
+        .map_err(|e| cot::Error::internal(format!("failed to migrate SQLite source: {e}")))
+}
+
+fn app_migrations() -> Vec<Box<SyncDynMigration>> {
+    let mut all = migrations::wrap_migrations(cot::session::db::migrations::MIGRATIONS);
+    all.extend(migrations::wrap_migrations(
+        crate::config::db_migrations::MIGRATIONS,
+    ));
+    all.extend(migrations::wrap_migrations(
+        crate::user::db_migrations::MIGRATIONS,
+    ));
+    all.extend(migrations::wrap_migrations(
+        crate::vpn::db_migrations::MIGRATIONS,
+    ));
+    all
+}
+
+async fn target_has_app_data(db: &Database) -> cot::Result<bool> {
+    let config_entries = ConfigEntry::objects().count(db).await.map_err(internal)?;
+    let users = User::objects().count(db).await.map_err(internal)?;
+    let oidc_links = OidcLink::objects().count(db).await.map_err(internal)?;
+    let clients = VpnClient::objects().count(db).await.map_err(internal)?;
+    Ok(config_entries > 0 || users > 0 || oidc_links > 0 || clients > 0)
+}
+
+async fn copy_app_data(source_db: &Database, target_db: &Database) -> cot::Result<()> {
+    for mut entry in ConfigEntry::objects().all(source_db).await.map_err(internal)? {
+        if matches!(
+            entry.key_str(),
+            "database_url" | "migrate_sqlite" | MARKER_KEY | SOURCE_KEY
+        ) {
+            continue;
+        }
+        entry.save(target_db).await.map_err(internal)?;
+    }
+
+    for mut session in CotSession::objects()
+        .all(source_db)
+        .await
+        .map_err(internal)?
+    {
+        session.save(target_db).await.map_err(internal)?;
+    }
+
+    for mut user in User::list_all(source_db).await.map_err(internal)? {
+        user.save(target_db).await.map_err(internal)?;
+    }
+
+    for mut link in OidcLink::objects().all(source_db).await.map_err(internal)? {
+        link.save(target_db).await.map_err(internal)?;
+    }
+
+    for mut client in VpnClient::list_all(source_db).await.map_err(internal)? {
+        client.save(target_db).await.map_err(internal)?;
+    }
+
+    Ok(())
+}
+
+async fn reset_postgres_sequences(db: &Database) -> cot::Result<()> {
+    for table in [
+        "cot__session",
+        "amnezia_fellow__user",
+        "amnezia_fellow__oidc_link",
+        "amnezia_fellow__vpn_client",
+    ] {
+        let sql = format!(
+            "SELECT setval(pg_get_serial_sequence('{table}', 'id'), \
+             COALESCE((SELECT MAX(id) FROM {table}), 1), \
+             (SELECT COUNT(*) > 0 FROM {table}))"
+        );
+        db.raw(&sql).await.map_err(internal)?;
+    }
+    Ok(())
+}
+
+async fn write_marker(db: &Database, source: &str) -> cot::Result<()> {
+    let mut marker = ConfigEntry::new(MARKER_KEY.to_owned(), now_unix_seconds().to_string());
+    marker.save(db).await.map_err(internal)?;
+
+    let mut source_entry = ConfigEntry::new(SOURCE_KEY.to_owned(), source.to_owned());
+    source_entry.save(db).await.map_err(internal)?;
+
+    let mut migrate_entry = ConfigEntry::new("migrate_sqlite".to_owned(), String::new());
+    migrate_entry.save(db).await.map_err(internal)?;
+    Ok(())
+}
+
+fn now_unix_seconds() -> i64 {
+    let seconds = SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .map(|duration| duration.as_secs())
+        .unwrap_or_default();
+    i64::try_from(seconds).unwrap_or(i64::MAX)
+}
+
+fn internal(error: impl std::fmt::Display) -> cot::Error {
+    cot::Error::internal(error.to_string())
+}

src/vpn.rs

@@ -31,6 +31,7 @@ pub struct VpnClient {
     address: LimitedString<64>,
     public_key: LimitedString<128>,
     private_key: LimitedString<128>,
+    group_name: Option<String>,
     enabled: bool,
     created_at: LimitedString<64>,
     updated_at: LimitedString<64>,
@@ -45,6 +46,7 @@ pub struct VpnClientView {
     pub name: String,
     pub address: String,
     pub public_key: String,
+    pub group_name: Option<String>,
     pub enabled: bool,
     pub created_at: String,
     pub updated_at: String,
@@ -88,6 +90,7 @@ impl VpnClient {
         db: &Database,
         owner_user_id: i64,
         name: &str,
+        group_name: Option<&str>,
         cidr: &str,
     ) -> cot::db::Result<Self> {
         let keypair = generate_keypair().map_err(db_custom_error)?;
@@ -103,6 +106,7 @@ impl VpnClient {
             address: LimitedString::new(address.as_str()).unwrap(),
             public_key: LimitedString::new(keypair.public_key.as_str()).unwrap(),
             private_key: LimitedString::new(keypair.private_key.as_str()).unwrap(),
+            group_name: group_name_for_storage(group_name)?,
             enabled: true,
             created_at: LimitedString::new(now.as_str()).unwrap(),
             updated_at: LimitedString::new(now.as_str()).unwrap(),
@@ -118,6 +122,25 @@ impl VpnClient {
         self.save(db).await
     }
 
+    pub async fn set_group_and_rotate_keys(
+        &mut self,
+        db: &Database,
+        group_name: Option<&str>,
+    ) -> cot::db::Result<()> {
+        let group_name = group_name_for_storage(group_name)?;
+        if self.group_name == group_name {
+            return Ok(());
+        }
+
+        let keypair = generate_keypair().map_err(db_custom_error)?;
+        self.public_key = LimitedString::new(keypair.public_key).unwrap();
+        self.private_key = LimitedString::new(keypair.private_key).unwrap();
+        self.group_name = group_name;
+        let now = now_timestamp();
+        self.updated_at = LimitedString::new(now).unwrap();
+        self.save(db).await
+    }
+
     pub async fn delete_by_id(db: &Database, client_id: i64) -> cot::db::Result<()> {
         cot::db::query!(VpnClient, $id == Auto::Fixed(client_id))
             .delete(db)
@@ -134,6 +157,7 @@ impl VpnClient {
             name: self.name.to_string(),
             address: self.address.to_string(),
             public_key: self.public_key.to_string(),
+            group_name: self.group_name.as_ref().map(ToString::to_string),
             enabled: self.enabled,
             created_at: self.created_at.to_string(),
             updated_at: self.updated_at.to_string(),
@@ -167,6 +191,10 @@ impl VpnClient {
     pub fn private_key_str(&self) -> &str {
         &self.private_key
     }
+
+    pub fn group_name_str(&self) -> Option<&str> {
+        self.group_name.as_deref()
+    }
 }
 
 // ---------------------------------------------------------------------------
@@ -211,6 +239,48 @@ pub fn render_peer_secret(clients: &[VpnClient]) -> String {
     out
 }
 
+pub fn render_client_policy(clients: &[VpnClient], cidr: &str) -> Result<String, String> {
+    parse_ipv4_cidr(cidr)?;
+
+    let mut groups = BTreeMap::<String, Vec<Ipv4Addr>>::new();
+    for client in clients.iter().filter(|client| client.enabled()) {
+        let Some(group_name) = client.group_name_str() else {
+            continue;
+        };
+        let address = client.address_str().parse::<Ipv4Addr>().map_err(|e| {
+            format!(
+                "client {} has invalid IPv4 address {:?}: {e}",
+                client.id_val(),
+                client.address_str()
+            )
+        })?;
+        if !ipv4_is_in_cidr(address, cidr)? {
+            return Err(format!(
+                "client {} address {} is outside VPN CIDR {cidr}",
+                client.id_val(),
+                address
+            ));
+        }
+        groups
+            .entry(group_name.to_owned())
+            .or_default()
+            .push(address);
+    }
+
+    let mut out =
+        format!("# Generated by amnezia-fellow. Exact allowed awg0-to-awg0 pairs for {cidr}.\n");
+    for addresses in groups.values_mut() {
+        addresses.sort_unstable();
+        addresses.dedup();
+        for source in addresses.iter() {
+            for destination in addresses.iter().filter(|address| *address != source) {
+                out.push_str(&format!("{source}/32 {destination}/32\n"));
+            }
+        }
+    }
+    Ok(out)
+}
+
 fn client_name_for_storage(name: &str) -> cot::db::Result<LimitedString<255>> {
     let name = if name.is_empty() {
         "Amnezia client"
@@ -221,6 +291,16 @@ fn client_name_for_storage(name: &str) -> cot::db::Result<LimitedString<255>> {
         .map_err(|e| db_custom_error(format!("client name is too long: {e}")))
 }
 
+fn group_name_for_storage(group_name: Option<&str>) -> cot::db::Result<Option<String>> {
+    let Some(group_name) = group_name.map(str::trim).filter(|name| !name.is_empty()) else {
+        return Ok(None);
+    };
+    if group_name.len() > 255 {
+        return Err(db_custom_error("group name is too long".to_owned()));
+    }
+    Ok(Some(group_name.to_owned()))
+}
+
 fn escaped_peer_comment_value(value: &str) -> String {
     let mut escaped = String::with_capacity(value.len() + 2);
     escaped.push('"');
@@ -432,6 +512,7 @@ pub struct SecretSyncResult {
 pub async fn sync_clients_secret(
     config: &AppConfig,
     rendered_peers: String,
+    rendered_policy: String,
 ) -> Result<SecretSyncResult, String> {
     let client = Client::try_default()
         .await
@@ -439,13 +520,18 @@ pub async fn sync_clients_secret(
     let api: Api<Secret> = Api::namespaced(client, &config.k8s_namespace);
 
     let desired = rendered_peers.into_bytes();
+    let desired_policy = rendered_policy.into_bytes();
     let name = &config.k8s_clients_secret;
     let key = &config.k8s_clients_secret_key;
+    let policy_key = "policy.conf";
 
     match api.get_opt(name).await {
         Ok(Some(mut secret)) => {
             let mut data = secret.data.take().unwrap_or_default();
-            if data.get(key).map(|value| value.0.as_slice()) == Some(desired.as_slice()) {
+            if data.get(key).map(|value| value.0.as_slice()) == Some(desired.as_slice())
+                && data.get(policy_key).map(|value| value.0.as_slice())
+                    == Some(desired_policy.as_slice())
+            {
                 return Ok(SecretSyncResult {
                     changed: false,
                     message: "client Secret is already up to date".to_owned(),
@@ -453,6 +539,10 @@ pub async fn sync_clients_secret(
             }
 
             data.insert(key.clone(), k8s_openapi::ByteString(desired));
+            data.insert(
+                policy_key.to_owned(),
+                k8s_openapi::ByteString(desired_policy),
+            );
             secret.data = Some(data);
             mark_client_secret_updated(&mut secret);
             api.replace(name, &PostParams::default(), &secret)
@@ -466,6 +556,10 @@ pub async fn sync_clients_secret(
         Ok(None) => {
             let mut data = BTreeMap::new();
             data.insert(key.clone(), k8s_openapi::ByteString(desired));
+            data.insert(
+                policy_key.to_owned(),
+                k8s_openapi::ByteString(desired_policy),
+            );
             let secret = Secret {
                 metadata: ObjectMeta {
                     name: Some(name.clone()),
@@ -498,7 +592,8 @@ pub async fn sync_from_database(
     let clients = VpnClient::list_all(db)
         .await
         .map_err(|e| format!("failed to list VPN clients: {e}"))?;
-    sync_clients_secret(config, render_peer_secret(&clients)).await
+    let policy = render_client_policy(&clients, &config.vpn_client_cidr)?;
+    sync_clients_secret(config, render_peer_secret(&clients), policy).await
 }
 
 fn mark_client_secret_updated(secret: &mut Secret) {
@@ -920,6 +1015,16 @@ fn parse_ipv4_cidr(cidr: &str) -> Result<(Ipv4Addr, u32), String> {
     Ok((u32_to_ipv4(ipv4_to_u32(ip) & mask), prefix))
 }
 
+fn ipv4_is_in_cidr(address: Ipv4Addr, cidr: &str) -> Result<bool, String> {
+    let (network, prefix) = parse_ipv4_cidr(cidr)?;
+    let mask = if prefix == 0 {
+        0
+    } else {
+        u32::MAX << (32 - prefix)
+    };
+    Ok(ipv4_to_u32(address) & mask == ipv4_to_u32(network))
+}
+
 fn ipv4_to_u32(ip: Ipv4Addr) -> u32 {
     u32::from_be_bytes(ip.octets())
 }
@@ -1031,13 +1136,112 @@ pub mod db_migrations {
             &[Operation::custom(create_vpn_client_indexes).build()];
     }
 
-    pub const MIGRATIONS: &[&SyncDynMigration] = &[&M0005CreateVpnClient, &M0006VpnClientIndexes];
+    #[cot::db::migrations::migration_op]
+    async fn normalize_bigint_ids(ctx: migrations::MigrationContext<'_>) -> cot::db::Result<()> {
+        if ctx
+            .db
+            .raw("SELECT current_setting('server_version_num')")
+            .await
+            .is_err()
+        {
+            return Ok(());
+        }
+
+        for sql in [
+            "ALTER TABLE amnezia_fellow__user ALTER COLUMN id TYPE BIGINT",
+            "ALTER TABLE amnezia_fellow__user \
+                ALTER COLUMN telegram_link_code_created_at TYPE BIGINT",
+            "ALTER TABLE amnezia_fellow__oidc_link ALTER COLUMN id TYPE BIGINT",
+            "ALTER TABLE amnezia_fellow__oidc_link ALTER COLUMN user_id TYPE BIGINT",
+            "ALTER TABLE amnezia_fellow__vpn_client ALTER COLUMN id TYPE BIGINT",
+            "ALTER TABLE amnezia_fellow__vpn_client ALTER COLUMN owner_user_id TYPE BIGINT",
+        ] {
+            ctx.db.raw(sql).await?;
+        }
+
+        Ok(())
+    }
+
+    #[derive(Debug, Copy, Clone)]
+    pub struct M0009NormalizeBigintIds;
+
+    impl migrations::Migration for M0009NormalizeBigintIds {
+        const APP_NAME: &'static str = "amnezia_fellow";
+        const MIGRATION_NAME: &'static str = "m_0009_normalize_bigint_ids";
+        const DEPENDENCIES: &'static [migrations::MigrationDependency] = &[
+            migrations::MigrationDependency::migration(
+                "amnezia_fellow",
+                "m_0006_vpn_client_indexes",
+            ),
+            migrations::MigrationDependency::migration(
+                "amnezia_fellow",
+                "m_0008_user_telegram_link_code",
+            ),
+        ];
+        const OPERATIONS: &'static [Operation] = &[Operation::custom(normalize_bigint_ids).build()];
+    }
+
+    #[cot::db::migrations::migration_op]
+    async fn add_vpn_client_group_name(
+        ctx: migrations::MigrationContext<'_>,
+    ) -> cot::db::Result<()> {
+        ctx.db
+            .raw(
+                "ALTER TABLE amnezia_fellow__vpn_client \
+                 ADD COLUMN group_name VARCHAR(255)",
+            )
+            .await?;
+        ctx.db
+            .raw(
+                "CREATE INDEX idx_amnezia_fellow_vpn_client_owner_group \
+                 ON amnezia_fellow__vpn_client (owner_user_id, group_name)",
+            )
+            .await?;
+        Ok(())
+    }
+
+    #[derive(Debug, Copy, Clone)]
+    pub struct M0010VpnClientGroupName;
+
+    impl migrations::Migration for M0010VpnClientGroupName {
+        const APP_NAME: &'static str = "amnezia_fellow";
+        const MIGRATION_NAME: &'static str = "m_0010_vpn_client_group_name";
+        const DEPENDENCIES: &'static [migrations::MigrationDependency] =
+            &[migrations::MigrationDependency::migration(
+                "amnezia_fellow",
+                "m_0009_normalize_bigint_ids",
+            )];
+        const OPERATIONS: &'static [Operation] =
+            &[Operation::custom(add_vpn_client_group_name).build()];
+    }
+
+    pub const MIGRATIONS: &[&SyncDynMigration] = &[
+        &M0005CreateVpnClient,
+        &M0006VpnClientIndexes,
+        &M0009NormalizeBigintIds,
+        &M0010VpnClientGroupName,
+    ];
 }
 
 #[cfg(test)]
 mod tests {
     use super::*;
 
+    fn test_client(id: i64, owner: i64, address: &str, group_name: Option<&str>) -> VpnClient {
+        VpnClient {
+            id: Auto::Fixed(id),
+            owner_user_id: owner,
+            name: LimitedString::new(format!("client-{id}")).unwrap(),
+            address: LimitedString::new(address).unwrap(),
+            public_key: LimitedString::new(format!("public-{id}")).unwrap(),
+            private_key: LimitedString::new(format!("private-{id}")).unwrap(),
+            group_name: group_name.map(str::to_owned),
+            enabled: true,
+            created_at: LimitedString::new("0").unwrap(),
+            updated_at: LimitedString::new("0").unwrap(),
+        }
+    }
+
     #[test]
     fn cidr_parser_normalizes_network() {
         let (network, prefix) = parse_ipv4_cidr("10.8.42.7/16").unwrap();
@@ -1052,6 +1256,33 @@ mod tests {
         assert_eq!(keypair.public_key.len(), 44);
     }
 
+    #[test]
+    fn client_policy_allows_only_exact_pairs_with_same_group() {
+        let clients = vec![
+            test_client(1, 10, "10.8.0.2", Some("home")),
+            test_client(2, 10, "10.8.0.3", Some("home")),
+            test_client(3, 10, "10.8.0.4", Some("other")),
+            test_client(4, 11, "10.8.0.5", Some("home")),
+            test_client(5, 10, "10.8.0.6", None),
+        ];
+
+        let policy = render_client_policy(&clients, "10.8.0.0/16").unwrap();
+        assert!(policy.contains("10.8.0.2/32 10.8.0.3/32\n"));
+        assert!(policy.contains("10.8.0.3/32 10.8.0.2/32\n"));
+        assert!(policy.contains("10.8.0.2/32 10.8.0.5/32\n"));
+        assert!(policy.contains("10.8.0.5/32 10.8.0.2/32\n"));
+        assert_eq!(
+            policy.lines().filter(|line| !line.starts_with('#')).count(),
+            6
+        );
+    }
+
+    #[test]
+    fn client_policy_rejects_address_outside_vpn_cidr() {
+        let clients = vec![test_client(1, 10, "192.0.2.2", Some("home"))];
+        assert!(render_client_policy(&clients, "10.8.0.0/16").is_err());
+    }
+
     #[test]
     fn endpoint_parser_accepts_ipv4_and_bracketed_ipv6() {
         assert_eq!(
@@ -1095,6 +1326,7 @@ mod tests {
             address: LimitedString::new("10.8.0.2").unwrap(),
             public_key: LimitedString::new("client-public-key").unwrap(),
             private_key: LimitedString::new("client-private-key").unwrap(),
+            group_name: None,
             enabled: true,
             created_at: LimitedString::new("2026-06-16T00:00:00Z").unwrap(),
             updated_at: LimitedString::new("2026-06-16T00:00:00Z").unwrap(),
@@ -1160,6 +1392,7 @@ mod tests {
             address: LimitedString::new("10.8.0.2").unwrap(),
             public_key: LimitedString::new("client-public-key").unwrap(),
             private_key: LimitedString::new("client-private-key").unwrap(),
+            group_name: None,
             enabled: true,
             created_at: LimitedString::new("2026-06-16T00:00:00Z").unwrap(),
             updated_at: LimitedString::new("2026-06-16T00:00:00Z").unwrap(),

templates/client_portal.html

@@ -9,13 +9,13 @@
     * { box-sizing: border-box; }
     [x-cloak] { display: none !important; }
     body { margin: 0; min-height: 100vh; background: #edf3ef; color: #18232d; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
-    button, input { font: inherit; }
+    button, input, select { font: inherit; }
     button { min-height: 40px; border: 1px solid #18342f; border-radius: 8px; padding: .55rem .85rem; background: #18342f; color: #fff; cursor: pointer; font-weight: 750; }
     button.secondary { background: #fff; color: #18342f; border-color: #c7d4ce; }
     button.ghost { background: transparent; color: #42515d; border-color: transparent; }
     button.danger { background: #a8312d; border-color: #a8312d; color: #fff; }
     button:disabled { opacity: .48; cursor: default; }
-    input { width: 100%; min-height: 42px; border: 1px solid #c7d4ce; border-radius: 8px; padding: .55rem .7rem; color: #18232d; background: #fff; }
+    input, select { width: 100%; min-height: 42px; border: 1px solid #c7d4ce; border-radius: 8px; padding: .55rem .7rem; color: #18232d; background: #fff; }
     code { display: inline-block; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; border-radius: 6px; background: #f1f4f2; color: #26313a; padding: .18rem .4rem; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .82rem; }
     .portal { min-height: 100vh; display: flex; flex-direction: column; }
     .topbar { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.94); border-bottom: 1px solid #d6dfda; backdrop-filter: blur(12px); }
@@ -62,7 +62,8 @@
     .server-status-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #18232d; font-size: .86rem; font-weight: 850; }
     .server-status-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #69777f; font-size: .74rem; font-weight: 750; }
     .server-status-muted { color: #69777f; font-size: .82rem; }
-    .create { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .65rem; padding: 0 1rem 1rem; align-items: end; }
+    .create { display: flex; justify-content: flex-end; padding: 0 1rem 1rem; }
+    .create-plus { width: 44px; min-width: 44px; height: 44px; padding: 0; font-size: 1.55rem; line-height: 1; }
     .field { display: grid; gap: .32rem; min-width: 0; }
     .field label { color: #34424b; font-size: .83rem; font-weight: 800; }
     .notice { border: 1px solid #d6dfda; border-left-width: 4px; border-radius: 8px; background: #fff; padding: .75rem .85rem; display: grid; gap: .25rem; box-shadow: 0 8px 24px rgba(24, 52, 47, .06); }
@@ -87,7 +88,7 @@
     .meta-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem; }
     .meta-item { min-width: 0; display: grid; gap: .24rem; }
     .meta-label { color: #69777f; font-size: .77rem; font-weight: 800; }
-    .key-actions { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: .5rem; align-items: center; }
+    .key-actions { display: grid; grid-template-columns: minmax(0, 1fr) auto auto auto; gap: .5rem; align-items: center; }
     .key-actions .server-button { justify-self: stretch; }
     .key-updated { color: #69777f; font-size: .82rem; overflow-wrap: anywhere; }
     .backdrop { position: fixed; inset: 0; z-index: 30; display: grid; place-items: center; padding: 1rem; background: rgba(16, 28, 36, .42); }
@@ -115,12 +116,15 @@
     .modal-actions { display: flex; justify-content: flex-end; gap: .5rem; flex-wrap: wrap; }
     .telegram-sheet { width: min(480px, 100%); }
     .telegram-copy { color: #53616c; line-height: 1.45; margin: 0; }
+    .form-stack { display: grid; gap: .8rem; }
+    .field-hint { margin: 0; color: #69777f; font-size: .82rem; line-height: 1.4; }
+    .warning-box { border: 1px solid #e5c76c; border-radius: 8px; background: #fff8df; color: #5f4911; padding: .7rem; font-size: .86rem; line-height: 1.4; }
     .guide-list { margin: 0; padding-left: 1.2rem; color: #34424b; display: grid; gap: .45rem; line-height: 1.4; }
     .guide-list a { color: #18342f; font-weight: 850; }
     .guide-list a.disabled { color: #69777f; pointer-events: none; text-decoration: none; }
     .secret-box { display: grid; gap: .35rem; border: 1px solid #d6dfda; border-radius: 8px; background: #f7faf8; padding: .7rem; }
     .secret-box code { display: block; padding: .55rem .65rem; font-size: .92rem; white-space: normal; overflow-wrap: anywhere; }
-    @media (max-width: 720px) {
+    @media (max-width: 900px) {
         .topbar-inner { align-items: flex-start; flex-direction: column; }
         .top-actions { width: 100%; justify-content: space-between; }
         .user-pill { max-width: 100%; }
@@ -219,11 +223,7 @@
                 </template>
             </div>
             <div class="create">
-                <div class="field">
-                    <label for="client-name">{{ t.configs_new_key }}</label>
-                    <input id="client-name" x-model="newName" @keydown.enter.prevent="createClient()" placeholder="{{ t.configs_name_placeholder }}">
-                </div>
-                <button type="button" @click="createClient()" :disabled="busy">{{ t.configs_create }}</button>
+                <button type="button" class="create-plus" @click="openCreateClient()" :disabled="busy" title="{{ t.configs_new_key }}" aria-label="{{ t.configs_new_key }}">+</button>
             </div>
         </section>
 
@@ -265,10 +265,15 @@
                                 <span class="meta-label">{{ t.configs_public_key }}</span>
                                 <code x-text="shortKey(client.public_key)"></code>
                             </div>
+                            <div class="meta-item">
+                                <span class="meta-label">{{ t.configs_group }}</span>
+                                <code x-text="client.group_name || '{{ t.configs_group_isolated }}'"></code>
+                            </div>
                         </div>
 
                         <div class="key-actions">
                             <button type="button" class="server-button" @click="openServers(client)" :disabled="busy || !client.enabled">{{ t.configs_choose_server }}</button>
+                            <button type="button" class="secondary" @click="openGroupEditor(client)" :disabled="busy">{{ t.configs_change_group }}</button>
                             <button type="button" class="secondary" @click="setEnabled(client, !client.enabled)" :disabled="busy" x-text="client.enabled ? '{{ t.configs_disable }}' : '{{ t.configs_enable }}'"></button>
                             <button type="button" class="danger" @click="deleteClient(client)" :disabled="busy">{{ t.users_delete }}</button>
                         </div>
@@ -280,6 +285,45 @@
         </template>
     </main>
 
+    <template x-if="clientModal">
+        <div class="backdrop" x-cloak @click.self="closeClientModal()">
+            <section class="sheet">
+                <div class="sheet-head">
+                    <div class="sheet-title">
+                        <h2 x-text="clientModal.mode === 'create' ? '{{ t.configs_new_key }}' : '{{ t.configs_change_group }}'"></h2>
+                        <span x-show="clientModal.client" x-text="clientModal.client ? clientModal.client.name : ''"></span>
+                    </div>
+                    <button type="button" class="ghost" @click="closeClientModal()">{{ t.admin_close }}</button>
+                </div>
+                <div class="form-stack">
+                    <template x-if="clientModal.mode === 'create'">
+                        <div class="field">
+                            <label for="client-modal-name">{{ t.configs_name }}</label>
+                            <input id="client-modal-name" x-model="clientModal.name" placeholder="{{ t.configs_name_placeholder }}">
+                        </div>
+                    </template>
+                    <div class="field">
+                        <label for="client-modal-group">{{ t.configs_group }}</label>
+                        <input id="client-modal-group" x-model="clientModal.groupName" list="vpn-client-groups" placeholder="{{ t.configs_group_placeholder }}">
+                        <datalist id="vpn-client-groups">
+                            <template x-for="group in groups" :key="group">
+                                <option :value="group"></option>
+                            </template>
+                        </datalist>
+                        <p class="field-hint">{{ t.configs_group_hint }}</p>
+                    </div>
+                    <template x-if="clientModal.mode === 'group'">
+                        <div class="warning-box">{{ t.configs_group_rotation_warning }}</div>
+                    </template>
+                </div>
+                <div class="modal-actions">
+                    <button type="button" class="secondary" @click="closeClientModal()">{{ t.admin_close }}</button>
+                    <button type="button" @click="clientModal.mode === 'create' ? createClient() : changeClientGroup()" :disabled="busy">{{ t.settings_save }}</button>
+                </div>
+            </section>
+        </div>
+    </template>
+
     <template x-if="serverModal">
         <div class="backdrop" x-cloak @click.self="closeServers()">
             <section class="sheet">
@@ -433,7 +477,8 @@
 function clientPortal() {
     return {
         clients: [],
-        newName: '',
+        groups: [],
+        clientModal: null,
         busy: false,
         status: '',
         error: '',
@@ -461,12 +506,15 @@ function clientPortal() {
         telegramModal: null,
         telegramBusy: false,
         telegramPromptChecked: false,
+        telegramStatusTimer: null,
+        telegramStatusPolling: false,
         init() {
             this.initTelegramWebApp();
             this.load();
             this.loadServerStatus();
             this.loadTelegramStatus();
             this.serverStatusTimer = setInterval(() => this.loadServerStatus(true), 30000);
+            this.telegramStatusTimer = setInterval(() => this.pollTelegramStatus(), 2500);
         },
         async request(url, options = {}) {
             const response = await fetch(url, {
@@ -490,6 +538,7 @@ function clientPortal() {
             try {
                 const data = await this.request('/api/vpn-clients');
                 this.clients = data.clients || [];
+                this.groups = data.groups || [];
             } catch (e) {
                 this.showError(e);
             } finally {
@@ -517,11 +566,11 @@ function clientPortal() {
             this.telegram.isWebApp = Boolean(webApp.initData);
             this.telegram.initData = webApp.initData || '';
         },
-        async loadTelegramStatus() {
+        async loadTelegramStatus(options = {}) {
             try {
                 const status = await this.request('/api/telegram-link/status');
                 this.applyTelegramStatus(status);
-                this.maybePromptTelegram();
+                if (options.prompt !== false) this.maybePromptTelegram();
             } catch (e) {
                 console.warn('telegram status failed', e);
             }
@@ -596,6 +645,25 @@ function clientPortal() {
                 this.telegramBusy = false;
             }
         },
+        async pollTelegramStatus() {
+            if (this.telegramStatusPolling || this.telegramBusy) return;
+            if (!this.telegram.enabled || !this.telegram.pending) return;
+            if (this.telegramModal !== 'manualGuide' && this.telegramModal !== 'manage') return;
+
+            this.telegramStatusPolling = true;
+            const wasPending = this.telegram.pending;
+            try {
+                await this.loadTelegramStatus({ prompt: false });
+                if (wasPending && this.telegram.linked) {
+                    this.telegramModal = 'manage';
+                    this.setNotice('success', '{{ t.notice_success_title }}', '{{ t.telegram_saved }}');
+                } else if (wasPending && !this.telegram.pending) {
+                    this.telegramModal = 'manage';
+                }
+            } finally {
+                this.telegramStatusPolling = false;
+            }
+        },
         async copyTelegramSecret() {
             if (!this.telegram.pending_secret) return;
             this.clearNotice();
@@ -658,17 +726,42 @@ function clientPortal() {
             if (this.telegram.linked) return '{{ t.telegram_connected_message }}';
             return '{{ t.telegram_not_connected_message }}';
         },
+        openCreateClient() {
+            this.clientModal = { mode: 'create', name: '', groupName: '', client: null };
+        },
+        openGroupEditor(client) {
+            this.clientModal = {
+                mode: 'group',
+                name: client.name || '',
+                groupName: client.group_name || '',
+                client,
+            };
+        },
+        closeClientModal() {
+            if (!this.busy) this.clientModal = null;
+        },
+        rememberGroup(groupName) {
+            const group = String(groupName || '').trim();
+            if (group && !this.groups.includes(group)) {
+                this.groups.push(group);
+                this.groups.sort((left, right) => left.localeCompare(right));
+            }
+        },
         async createClient() {
+            if (!this.clientModal || this.clientModal.mode !== 'create') return;
             this.clearNotice();
             this.busy = true;
             try {
+                const name = this.clientModal.name;
+                const groupName = this.clientModal.groupName.trim() || null;
                 const data = await this.request('/api/vpn-clients', {
                     method: 'POST',
-                    body: JSON.stringify({ name: this.newName }),
+                    body: JSON.stringify({ name, group_name: groupName }),
                 });
                 this.clients.push(data.client);
                 delete this.serverConfigs[data.client.id];
-                this.newName = '';
+                this.rememberGroup(data.client.group_name);
+                this.clientModal = null;
                 this.applyResponseNotice(data, '{{ t.notice_create_success }}');
             } catch (e) {
                 this.showError(e);
@@ -676,6 +769,35 @@ function clientPortal() {
                 this.busy = false;
             }
         },
+        async changeClientGroup() {
+            if (!this.clientModal || this.clientModal.mode !== 'group') return;
+            const client = this.clientModal.client;
+            const groupName = this.clientModal.groupName.trim() || null;
+            if ((client.group_name || null) === groupName) {
+                this.clientModal = null;
+                return;
+            }
+            if (!confirm('{{ t.configs_group_rotation_confirm }}')) return;
+
+            this.clearNotice();
+            this.busy = true;
+            try {
+                const data = await this.request(`/api/vpn-clients/${client.id}/group`, {
+                    method: 'POST',
+                    body: JSON.stringify({ group_name: groupName }),
+                });
+                const index = this.clients.findIndex((item) => item.id === client.id);
+                if (index !== -1) this.clients[index] = data.client;
+                delete this.serverConfigs[client.id];
+                this.rememberGroup(data.client.group_name);
+                this.clientModal = null;
+                this.applyResponseNotice(data, '{{ t.configs_group_changed }}');
+            } catch (e) {
+                this.showError(e);
+            } finally {
+                this.busy = false;
+            }
+        },
         async setEnabled(client, enabled) {
             this.clearNotice();
             this.busy = true;

templates/configs.html

@@ -3,9 +3,11 @@
 {% block title %}{{ t.configs_heading }} | {{ t.site_name }}{% endblock title %}
 
 {% block head_extra %}
+<script src="https://telegram.org/js/telegram-web-app.js"></script>
 <script defer src="https://unpkg.com/alpinejs@3.x.x/dist/cdn.min.js"></script>
 <style>
     * { box-sizing: border-box; }
+    [x-cloak] { display: none !important; }
     body { margin: 0; min-height: 100vh; background: #f6f7f8; color: #1d252d; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
     a { color: inherit; }
     .shell { min-height: 100vh; display: grid; grid-template-columns: 220px minmax(0, 1fr); }
@@ -17,6 +19,13 @@
     .topbar { min-height: 48px; display: flex; align-items: center; justify-content: flex-end; gap: 1rem; flex-wrap: wrap; padding: .5rem 1.25rem; border-bottom: 1px solid #dde2e6; background: #fff; }
     .user-info { font-size: .875rem; color: #53606d; }
     .app-version { font-size: .75rem; color: #9aa4ae; white-space: nowrap; }
+    .telegram-status-button { min-width: 36px; width: 36px; height: 36px; min-height: 36px; padding: 0; display: inline-grid; place-items: center; position: relative; border-color: #cbd3db; background: #fff; color: #17202a; }
+    .telegram-status-button .telegram-mark { font-size: .7rem; font-weight: 900; letter-spacing: 0; }
+    .telegram-dot { position: absolute; right: 4px; top: 4px; width: .55rem; height: .55rem; border-radius: 999px; border: 2px solid #fff; background: #7b8793; }
+    .telegram-status-button.tone-connected .telegram-dot { background: #2f8f4e; }
+    .telegram-status-button.tone-pending .telegram-dot { background: #d39a00; }
+    .telegram-status-button.tone-empty .telegram-dot { background: #69777f; }
+    .telegram-status-button.tone-disabled .telegram-dot { background: #9d2323; }
     .logout-link, .lang-switch a { font-size: .875rem; text-decoration: none; color: #53606d; padding: .25rem .45rem; border-radius: 4px; }
     .logout-link:hover, .lang-switch a:hover { background: #eef1f4; color: #1d252d; }
     .lang-switch a.active { color: #1d252d; font-weight: 700; }
@@ -32,7 +41,22 @@
     button.secondary { background: #fff; color: #17202a; border-color: #cbd3db; }
     button.danger { background: #9d2323; border-color: #9d2323; }
     button:disabled { opacity: .55; cursor: default; }
-    table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid #dde2e6; border-radius: 6px; overflow: hidden; }
+    .config-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid #dde2e6; border-radius: 6px; overflow: hidden; }
+    .mobile-client-list { display: none; }
+    .mobile-owner-group { display: grid; gap: .55rem; }
+    .mobile-owner-head { display: flex; align-items: center; justify-content: space-between; gap: .5rem; color: #34414f; font-size: .86rem; font-weight: 750; }
+    .mobile-client-card { min-width: 0; border: 1px solid #dde2e6; border-radius: 8px; background: #fff; padding: .75rem; display: grid; gap: .65rem; box-shadow: 0 4px 16px rgba(23, 32, 42, .05); }
+    .mobile-client-head { min-width: 0; display: flex; align-items: flex-start; justify-content: space-between; gap: .55rem; }
+    .mobile-client-name { min-width: 0; font-weight: 800; overflow-wrap: anywhere; }
+    .mobile-client-state { flex: 0 0 auto; border-radius: 999px; padding: .15rem .45rem; background: #e8ecef; color: #53606d; font-size: .72rem; font-weight: 750; }
+    .mobile-client-state.enabled { background: #dcefe4; color: #175c31; }
+    .mobile-client-meta { min-width: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem; }
+    .mobile-meta-item { min-width: 0; display: grid; gap: .18rem; }
+    .mobile-meta-item.full { grid-column: 1 / -1; }
+    .mobile-meta-label { color: #6a7682; font-size: .72rem; font-weight: 700; }
+    .mobile-meta-value { min-width: 0; overflow-wrap: anywhere; }
+    .mobile-client-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .4rem; }
+    .mobile-client-actions button { width: 100%; min-width: 0; padding-inline: .4rem; white-space: normal; }
     th, td { text-align: left; padding: .65rem .75rem; border-bottom: 1px solid #edf0f2; font-size: .92rem; vertical-align: middle; }
     th { background: #eef1f4; font-weight: 650; color: #34414f; }
     tr:last-child td { border-bottom: 0; }
@@ -104,17 +128,25 @@
     .qr-box { display: grid; place-items: center; padding: .75rem; border: 1px solid #dde2e6; border-radius: 6px; background: #fff; }
     .qr-box svg { width: min(280px, 100%); height: auto; display: block; }
     .modal-actions { display: flex; gap: .5rem; justify-content: flex-end; margin-top: .75rem; flex-wrap: wrap; }
-    @media (max-width: 760px) {
+    .telegram-modal { width: min(480px, 100%); display: grid; gap: .8rem; }
+    .telegram-copy { color: #53606d; line-height: 1.45; margin: 0; }
+    .guide-list { margin: 0; padding-left: 1.2rem; color: #34414f; display: grid; gap: .45rem; line-height: 1.4; }
+    .guide-list a { color: #17202a; font-weight: 800; }
+    .guide-list a.disabled { color: #6a7682; pointer-events: none; text-decoration: none; }
+    .secret-box { display: grid; gap: .35rem; border: 1px solid #dde2e6; border-radius: 6px; background: #f8fafb; padding: .7rem; }
+    .secret-box code { display: block; padding: .55rem .65rem; font-size: .92rem; white-space: normal; overflow-wrap: anywhere; }
+    @media (max-width: 980px) {
         .shell { grid-template-columns: 1fr; }
-        .sidebar { display: flex; align-items: center; gap: .75rem; overflow-x: auto; }
+        .sidebar { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; overflow-x: visible; }
         .sidebar h1 { margin: 0; white-space: nowrap; }
         .sidebar a { margin: 0; white-space: nowrap; }
         .toolbar { align-items: stretch; flex-direction: column; }
         .actions { align-items: stretch; }
         .actions input, .actions button { width: 100%; }
         .main { padding: 1rem; }
-        table { display: block; overflow-x: auto; }
-        .row-actions { align-items: stretch; }
+        .desktop-client-table { display: none; }
+        .mobile-client-list { display: grid; gap: .9rem; min-width: 0; }
+        .mobile-client-card code { display: block; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
         .servers-modal { width: 100%; max-height: calc(100vh - 2rem); }
         .server-card-actions { grid-template-columns: 1fr; }
         .server-card-actions button { flex: 1 1 100%; }
@@ -138,6 +170,10 @@
         <div class="topbar">
             <span class="app-version">v{{ app_version }}</span>
             <span class="user-info">{{ user_name }} ({{ user_role }})</span>
+            <button type="button" x-cloak x-show="telegram.enabled" class="telegram-status-button" :class="`tone-${telegramStatusTone()}`" @click="openTelegramManage()" :title="telegramStatusTitle()" :aria-label="telegramStatusTitle()">
+                <span class="telegram-mark">TG</span>
+                <span class="telegram-dot"></span>
+            </button>
             <div class="lang-switch">
                 <a href="#"{% if t.lang.code() == "en" %} class="active"{% endif %} onclick="location.href='/set-lang?lang=en&next='+encodeURIComponent(location.pathname);return false">EN</a>
                 <a href="#"{% if t.lang.code() == "ru" %} class="active"{% endif %} onclick="location.href='/set-lang?lang=ru&next='+encodeURIComponent(location.pathname);return false">RU</a>
@@ -149,8 +185,7 @@
             <div class="toolbar">
                 <h2>{{ t.configs_heading }}</h2>
                 <div class="actions">
-                    <input x-model="newName" placeholder="{{ t.configs_name_placeholder }}">
-                    <button @click="createClient()" :disabled="busy">{{ t.configs_create }}</button>
+                    <button @click="openCreateClient()" :disabled="busy">+ {{ t.configs_create }}</button>
                     {% if is_admin %}
                     <button class="secondary" @click="sync()" :disabled="busy">{{ t.configs_sync }}</button>
                     {% endif %}
@@ -212,7 +247,7 @@
             </template>
 
             <template x-if="clients.length > 0">
-                <table>
+                <table class="config-table desktop-client-table">
                     <thead>
                         <tr>
                             <th>{{ t.configs_name }}</th>
@@ -221,6 +256,7 @@
                             {% endif %}
                             <th>{{ t.configs_address }}</th>
                             <th>{{ t.configs_public_key }}</th>
+                            <th>{{ t.configs_group }}</th>
                             <th>{{ t.configs_enabled }}</th>
                             <th>{{ t.users_actions }}</th>
                         </tr>
@@ -229,7 +265,7 @@
                         <tbody>
                             {% if is_admin %}
                             <tr class="owner-row">
-                                <td colspan="6">
+                                <td colspan="7">
                                     <span x-text="group.label"></span>
                                     <span class="owner-meta" x-text="`(${group.clients.length})`"></span>
                                 </td>
@@ -237,16 +273,18 @@
                             {% endif %}
                             <template x-for="client in group.clients" :key="client.id">
                                 <tr>
-                                    <td x-text="client.name"></td>
+                                    <td class="client-name-cell" data-label="{{ t.configs_name }}" x-text="client.name"></td>
                                     {% if is_admin %}
-                                    <td x-text="ownerLabel(client)"></td>
+                                    <td data-label="{{ t.configs_owner }}" x-text="ownerLabel(client)"></td>
                                     {% endif %}
-                                    <td><code x-text="client.address + '/32'"></code></td>
-                                    <td><code x-text="shortKey(client.public_key)"></code></td>
-                                    <td x-text="client.enabled ? '{{ t.configs_yes }}' : '{{ t.configs_no }}'"></td>
-                                    <td>
+                                    <td data-label="{{ t.configs_address }}"><code x-text="client.address + '/32'"></code></td>
+                                    <td data-label="{{ t.configs_public_key }}"><code x-text="shortKey(client.public_key)"></code></td>
+                                    <td data-label="{{ t.configs_group }}" x-text="client.group_name || '{{ t.configs_group_isolated }}'"></td>
+                                    <td data-label="{{ t.configs_enabled }}" x-text="client.enabled ? '{{ t.configs_yes }}' : '{{ t.configs_no }}'"></td>
+                                    <td class="client-actions-cell" data-label="{{ t.users_actions }}">
                                         <div class="row-actions">
                                             <button class="secondary" @click="openServers(client)" :disabled="busy">{{ t.configs_servers }}</button>
+                                            <button class="secondary" @click="openGroupEditor(client)" :disabled="busy">{{ t.configs_change_group }}</button>
                                             <button class="secondary" @click="setEnabled(client, !client.enabled)" :disabled="busy" x-text="client.enabled ? '{{ t.configs_disable }}' : '{{ t.configs_enable }}'"></button>
                                             <button class="danger" @click="deleteClient(client)" :disabled="busy">{{ t.users_delete }}</button>
                                         </div>
@@ -256,10 +294,89 @@
                         </tbody>
                     </template>
                 </table>
+
+                <div class="mobile-client-list">
+                    <template x-for="ownerGroup in groupedClients()" :key="`mobile-${ownerGroup.key}`">
+                        <section class="mobile-owner-group">
+                            <div class="mobile-owner-head">
+                                <span x-text="ownerGroup.label"></span>
+                                <span x-text="ownerGroup.clients.length"></span>
+                            </div>
+                            <template x-for="client in ownerGroup.clients" :key="`mobile-client-${client.id}`">
+                                <article class="mobile-client-card">
+                                    <div class="mobile-client-head">
+                                        <span class="mobile-client-name" x-text="client.name"></span>
+                                        <span class="mobile-client-state" :class="{ enabled: client.enabled }" x-text="client.enabled ? '{{ t.configs_enabled_state }}' : '{{ t.configs_disabled_state }}'"></span>
+                                    </div>
+                                    <div class="mobile-client-meta">
+                                        <div class="mobile-meta-item">
+                                            <span class="mobile-meta-label">{{ t.configs_address }}</span>
+                                            <code class="mobile-meta-value" x-text="client.address + '/32'"></code>
+                                        </div>
+                                        <div class="mobile-meta-item">
+                                            <span class="mobile-meta-label">{{ t.configs_group }}</span>
+                                            <span class="mobile-meta-value" x-text="client.group_name || '{{ t.configs_group_isolated }}'"></span>
+                                        </div>
+                                        <div class="mobile-meta-item full">
+                                            <span class="mobile-meta-label">{{ t.configs_public_key }}</span>
+                                            <code class="mobile-meta-value" x-text="shortKey(client.public_key)"></code>
+                                        </div>
+                                    </div>
+                                    <div class="mobile-client-actions">
+                                        <button class="secondary" @click="openServers(client)" :disabled="busy">{{ t.configs_servers }}</button>
+                                        <button class="secondary" @click="openGroupEditor(client)" :disabled="busy">{{ t.configs_change_group }}</button>
+                                        <button class="secondary" @click="setEnabled(client, !client.enabled)" :disabled="busy" x-text="client.enabled ? '{{ t.configs_disable }}' : '{{ t.configs_enable }}'"></button>
+                                        <button class="danger" @click="deleteClient(client)" :disabled="busy">{{ t.users_delete }}</button>
+                                    </div>
+                                </article>
+                            </template>
+                        </section>
+                    </template>
+                </div>
             </template>
         </main>
     </div>
 
+    <template x-if="clientModal">
+        <div class="modal-backdrop" @click.self="closeClientModal()">
+            <div class="modal">
+                <div class="modal-head">
+                    <div class="modal-title">
+                        <h3 x-text="clientModal.mode === 'create' ? '{{ t.configs_new_key }}' : '{{ t.configs_change_group }}'"></h3>
+                        <span class="modal-subtitle" x-show="clientModal.client" x-text="clientModal.client ? clientModal.client.name : ''"></span>
+                    </div>
+                    <button class="secondary" @click="closeClientModal()">{{ t.admin_close }}</button>
+                </div>
+                <template x-if="clientModal.mode === 'create'">
+                    <div class="detail-row">
+                        <label class="detail-label" for="admin-client-name">{{ t.configs_name }}</label>
+                        <input id="admin-client-name" x-model="clientModal.name" placeholder="{{ t.configs_name_placeholder }}">
+                    </div>
+                </template>
+                <div class="detail-row">
+                    <label class="detail-label" for="admin-client-group">{{ t.configs_group }}</label>
+                    <div>
+                        <input id="admin-client-group" x-model="clientModal.groupName" list="admin-vpn-client-groups" placeholder="{{ t.configs_group_placeholder }}">
+                        <datalist id="admin-vpn-client-groups">
+                            <template x-for="group in groups" :key="group">
+                                <option :value="group"></option>
+                            </template>
+                        </datalist>
+                    </div>
+                </div>
+                <template x-if="clientModal.mode === 'group'">
+                    <div class="notice tone-warning">
+                        <span>{{ t.configs_group_rotation_warning }}</span>
+                    </div>
+                </template>
+                <div class="modal-actions">
+                    <button class="secondary" @click="closeClientModal()">{{ t.admin_close }}</button>
+                    <button @click="clientModal.mode === 'create' ? createClient() : changeClientGroup()" :disabled="busy">{{ t.settings_save }}</button>
+                </div>
+            </div>
+        </div>
+    </template>
+
     <template x-if="rolloutModal">
         <div class="modal-backdrop" @click.self="closeRollout()">
             <div class="modal servers-modal">
@@ -341,13 +458,98 @@
             </div>
         </div>
     </template>
+
+    <template x-if="telegramModal">
+        <div class="modal-backdrop" @click.self="telegramModal = null">
+            <div class="modal telegram-modal">
+                <div class="modal-head">
+                    <div class="modal-title">
+                        <h3>{{ t.telegram_link_title }}</h3>
+                        <div class="modal-subtitle" x-text="telegramBotLabel()"></div>
+                    </div>
+                    <button class="secondary" @click="telegramModal = null">{{ t.admin_close }}</button>
+                </div>
+
+                <template x-if="telegramModal === 'manage'">
+                    <div>
+                        <p class="telegram-copy" x-text="telegramManageMessage()"></p>
+                        <template x-if="telegram.linked">
+                            <div class="detail-row">
+                                <span class="detail-label">{{ t.telegram_status_connected }}</span>
+                                <span class="detail-value"><code x-text="telegram.telegram_id || ''"></code></span>
+                            </div>
+                        </template>
+                        <template x-if="telegram.pending">
+                            <div class="secret-box">
+                                <span>{{ t.telegram_secret_label }}</span>
+                                <code x-text="telegram.pending_secret || ''"></code>
+                            </div>
+                        </template>
+                        <div class="modal-actions">
+                            <template x-if="telegram.pending">
+                                <button type="button" class="secondary" @click="copyTelegramSecret()" :disabled="telegramBusy || !telegram.pending_secret">{{ t.telegram_copy_secret }}</button>
+                            </template>
+                            <template x-if="telegram.pending">
+                                <button type="button" class="secondary" @click="refreshTelegramStatus()" :disabled="telegramBusy">{{ t.telegram_refresh_status }}</button>
+                            </template>
+                            <button type="button" class="secondary" @click="startTelegramBotLink()" :disabled="telegramBusy" x-text="telegram.linked || telegram.pending ? '{{ t.telegram_change }}' : '{{ t.telegram_connect }}'"></button>
+                            <template x-if="telegram.linked || telegram.pending || telegram.declined">
+                                <button type="button" class="danger" @click="deleteTelegramLink()" :disabled="telegramBusy">{{ t.telegram_delete }}</button>
+                            </template>
+                        </div>
+                    </div>
+                </template>
+
+                <template x-if="telegramModal === 'webapp'">
+                    <div>
+                        <p class="telegram-copy">{{ t.telegram_webapp_message }}</p>
+                        <div class="modal-actions">
+                            <button type="button" class="secondary" @click="declineTelegramLink()" :disabled="telegramBusy">{{ t.telegram_skip }}</button>
+                            <button type="button" @click="linkTelegramWebApp()" :disabled="telegramBusy">{{ t.telegram_save }}</button>
+                        </div>
+                    </div>
+                </template>
+
+                <template x-if="telegramModal === 'manualPrompt'">
+                    <div>
+                        <p class="telegram-copy">{{ t.telegram_manual_message }}</p>
+                        <div class="modal-actions">
+                            <button type="button" class="secondary" @click="declineTelegramLink()" :disabled="telegramBusy">{{ t.telegram_skip }}</button>
+                            <button type="button" @click="startTelegramBotLink()" :disabled="telegramBusy">{{ t.telegram_connect }}</button>
+                        </div>
+                    </div>
+                </template>
+
+                <template x-if="telegramModal === 'manualGuide'">
+                    <div>
+                        <p class="telegram-copy">{{ t.telegram_guide_title }}</p>
+                        <ol class="guide-list">
+                            <li>{{ t.telegram_guide_start }} <a :href="telegramBotUrl()" target="_blank" rel="noreferrer" :class="{ disabled: !telegram.bot_url }">{{ t.telegram_open_bot }}</a></li>
+                            <li>{{ t.telegram_guide_get_id }}</li>
+                            <li>{{ t.telegram_guide_paste }}</li>
+                        </ol>
+                        <div class="secret-box">
+                            <span>{{ t.telegram_secret_label }}</span>
+                            <code x-text="telegram.pending_secret || ''"></code>
+                        </div>
+                        <div class="modal-actions">
+                            <button type="button" class="secondary" @click="declineTelegramLink()" :disabled="telegramBusy">{{ t.telegram_skip }}</button>
+                            <button type="button" class="secondary" @click="copyTelegramSecret()" :disabled="telegramBusy || !telegram.pending_secret">{{ t.telegram_copy_secret }}</button>
+                            <button type="button" @click="refreshTelegramStatus()" :disabled="telegramBusy">{{ t.telegram_refresh_status }}</button>
+                        </div>
+                    </div>
+                </template>
+            </div>
+        </div>
+    </template>
 </div>
 
 <script>
 function configsPage() {
     return {
         clients: [],
-        newName: '',
+        groups: [],
+        clientModal: null,
         busy: false,
         status: '',
         error: '',
@@ -360,13 +562,34 @@ function configsPage() {
         serverConfigs: {},
         serverModal: null,
         qrModal: null,
+        telegram: {
+            enabled: false,
+            bot_username: '',
+            bot_url: '',
+            linked: false,
+            declined: false,
+            pending: false,
+            pending_secret: null,
+            pending_expires_at: null,
+            telegram_id: null,
+            isWebApp: false,
+            initData: '',
+        },
+        telegramModal: null,
+        telegramBusy: false,
+        telegramPromptChecked: false,
+        telegramStatusTimer: null,
+        telegramStatusPolling: false,
         isAdmin: {% if is_admin %}true{% else %}false{% endif %},
         init() {
+            this.initTelegramWebApp();
             this.load();
+            this.loadTelegramStatus();
             if (this.isAdmin) {
                 this.loadRolloutStatus();
                 this.rolloutTimer = setInterval(() => this.loadRolloutStatus(), 10000);
             }
+            this.telegramStatusTimer = setInterval(() => this.pollTelegramStatus(), 2500);
         },
         async request(url, options = {}) {
             const response = await fetch(url, {
@@ -384,29 +607,225 @@ function configsPage() {
             }
             return data;
         },
+        initTelegramWebApp() {
+            const webApp = window.Telegram && window.Telegram.WebApp;
+            if (!webApp) return;
+            try {
+                webApp.ready();
+                webApp.expand();
+            } catch (_) {}
+            this.telegram.isWebApp = Boolean(webApp.initData);
+            this.telegram.initData = webApp.initData || '';
+        },
+        async loadTelegramStatus(options = {}) {
+            try {
+                const status = await this.request('/api/telegram-link/status');
+                this.applyTelegramStatus(status);
+                if (options.prompt !== false) this.maybePromptTelegram();
+            } catch (e) {
+                console.warn('telegram status failed', e);
+            }
+        },
+        applyTelegramStatus(status) {
+            this.telegram = {
+                ...this.telegram,
+                enabled: Boolean(status.enabled),
+                bot_username: status.bot_username || '',
+                bot_url: status.bot_url || '',
+                linked: Boolean(status.linked),
+                declined: Boolean(status.declined),
+                pending: Boolean(status.pending),
+                pending_secret: status.pending_secret || null,
+                pending_expires_at: status.pending_expires_at || null,
+                telegram_id: status.telegram_id || null,
+            };
+        },
+        maybePromptTelegram() {
+            if (this.telegramPromptChecked) return;
+            this.telegramPromptChecked = true;
+            if (!this.telegram.enabled || this.telegram.linked || this.telegram.pending || this.telegram.declined) return;
+            this.telegramModal = (this.telegram.isWebApp && this.telegram.initData) ? 'webapp' : 'manualPrompt';
+        },
+        openTelegramManage() {
+            if (!this.telegram.enabled) return;
+            if (this.telegram.linked || this.telegram.pending || this.telegram.declined) {
+                this.telegramModal = 'manage';
+                return;
+            }
+            this.telegramModal = (this.telegram.isWebApp && this.telegram.initData) ? 'webapp' : 'manualPrompt';
+        },
+        async linkTelegramWebApp() {
+            this.telegramBusy = true;
+            this.clearNotice();
+            try {
+                const data = await this.request('/api/telegram-link/webapp', {
+                    method: 'POST',
+                    body: JSON.stringify({ init_data: this.telegram.initData }),
+                });
+                this.applyTelegramStatus(data.status || {});
+                this.telegramModal = null;
+                this.setNotice('success', '{{ t.notice_success_title }}', '{{ t.telegram_saved }}');
+            } catch (e) {
+                this.showError(e);
+            } finally {
+                this.telegramBusy = false;
+            }
+        },
+        async startTelegramBotLink() {
+            this.telegramBusy = true;
+            this.clearNotice();
+            try {
+                const data = await this.request('/api/telegram-link/start', { method: 'POST' });
+                this.applyTelegramStatus(data.status || {});
+                this.telegramModal = 'manualGuide';
+            } catch (e) {
+                this.showError(e);
+            } finally {
+                this.telegramBusy = false;
+            }
+        },
+        async refreshTelegramStatus() {
+            this.telegramBusy = true;
+            try {
+                await this.loadTelegramStatus();
+                if (this.telegram.linked) {
+                    this.telegramModal = 'manage';
+                    this.setNotice('success', '{{ t.notice_success_title }}', '{{ t.telegram_saved }}');
+                }
+            } finally {
+                this.telegramBusy = false;
+            }
+        },
+        async pollTelegramStatus() {
+            if (this.telegramStatusPolling || this.telegramBusy) return;
+            if (!this.telegram.enabled || !this.telegram.pending) return;
+            if (this.telegramModal !== 'manualGuide' && this.telegramModal !== 'manage') return;
+
+            this.telegramStatusPolling = true;
+            const wasPending = this.telegram.pending;
+            try {
+                await this.loadTelegramStatus({ prompt: false });
+                if (wasPending && this.telegram.linked) {
+                    this.telegramModal = 'manage';
+                    this.setNotice('success', '{{ t.notice_success_title }}', '{{ t.telegram_saved }}');
+                } else if (wasPending && !this.telegram.pending) {
+                    this.telegramModal = 'manage';
+                }
+            } finally {
+                this.telegramStatusPolling = false;
+            }
+        },
+        async copyTelegramSecret() {
+            if (!this.telegram.pending_secret) return;
+            this.clearNotice();
+            try {
+                await this.copyText(this.telegram.pending_secret);
+                this.setNotice('success', '{{ t.notice_success_title }}', '{{ t.telegram_secret_copied }}');
+            } catch (e) {
+                this.showError(e);
+            }
+        },
+        async declineTelegramLink() {
+            this.telegramBusy = true;
+            this.clearNotice();
+            try {
+                const data = await this.request('/api/telegram-link/decline', { method: 'POST' });
+                this.applyTelegramStatus(data.status || {});
+                this.telegramModal = null;
+                this.setNotice('success', '{{ t.notice_success_title }}', '{{ t.telegram_declined }}');
+            } catch (e) {
+                this.showError(e);
+            } finally {
+                this.telegramBusy = false;
+            }
+        },
+        async deleteTelegramLink() {
+            if (!confirm('{{ t.telegram_delete_confirm }}')) return;
+            this.telegramBusy = true;
+            this.clearNotice();
+            try {
+                const data = await this.request('/api/telegram-link/unlink', { method: 'POST' });
+                this.applyTelegramStatus(data.status || {});
+                this.telegramModal = null;
+                this.setNotice('success', '{{ t.notice_success_title }}', '{{ t.telegram_unlinked }}');
+            } catch (e) {
+                this.showError(e);
+            } finally {
+                this.telegramBusy = false;
+            }
+        },
+        telegramBotUrl() {
+            return this.telegram.bot_url || '#';
+        },
+        telegramBotLabel() {
+            return this.telegram.bot_username ? `@${this.telegram.bot_username}` : '{{ t.telegram_bot_unconfigured }}';
+        },
+        telegramStatusTone() {
+            if (!this.telegram.enabled) return 'disabled';
+            if (this.telegram.pending) return 'pending';
+            if (this.telegram.linked) return 'connected';
+            return 'empty';
+        },
+        telegramStatusTitle() {
+            if (!this.telegram.enabled) return '{{ t.telegram_status_disabled }}';
+            if (this.telegram.pending) return '{{ t.telegram_status_pending }}';
+            if (this.telegram.linked) return '{{ t.telegram_status_connected }}';
+            return '{{ t.telegram_status_empty }}';
+        },
+        telegramManageMessage() {
+            if (this.telegram.pending) return '{{ t.telegram_pending_message }}';
+            if (this.telegram.linked) return '{{ t.telegram_connected_message }}';
+            return '{{ t.telegram_not_connected_message }}';
+        },
         async load() {
             this.error = '';
             this.busy = true;
             try {
                 const data = await this.request('/api/vpn-clients');
                 this.clients = data.clients;
+                this.groups = data.groups || [];
             } catch (e) {
                 this.error = e.message;
             } finally {
                 this.busy = false;
             }
         },
+        openCreateClient() {
+            this.clientModal = { mode: 'create', name: '', groupName: '', client: null };
+        },
+        openGroupEditor(client) {
+            this.clientModal = {
+                mode: 'group',
+                name: client.name || '',
+                groupName: client.group_name || '',
+                client,
+            };
+        },
+        closeClientModal() {
+            if (!this.busy) this.clientModal = null;
+        },
+        rememberGroup(groupName) {
+            const group = String(groupName || '').trim();
+            if (group && !this.groups.includes(group)) {
+                this.groups.push(group);
+                this.groups.sort((left, right) => left.localeCompare(right));
+            }
+        },
         async createClient() {
+            if (!this.clientModal || this.clientModal.mode !== 'create') return;
             this.clearNotice();
             this.busy = true;
             try {
+                const name = this.clientModal.name;
+                const groupName = this.clientModal.groupName.trim() || null;
                 const data = await this.request('/api/vpn-clients', {
                     method: 'POST',
-                    body: JSON.stringify({ name: this.newName }),
+                    body: JSON.stringify({ name, group_name: groupName }),
                 });
                 this.clients.push(data.client);
                 delete this.serverConfigs[data.client.id];
-                this.newName = '';
+                this.rememberGroup(data.client.group_name);
+                this.clientModal = null;
                 this.applyResponseNotice(data, '{{ t.notice_create_success }}');
                 if (this.isAdmin) await this.loadRolloutStatus();
             } catch (e) {
@@ -415,6 +834,36 @@ function configsPage() {
                 this.busy = false;
             }
         },
+        async changeClientGroup() {
+            if (!this.clientModal || this.clientModal.mode !== 'group') return;
+            const client = this.clientModal.client;
+            const groupName = this.clientModal.groupName.trim() || null;
+            if ((client.group_name || null) === groupName) {
+                this.clientModal = null;
+                return;
+            }
+            if (!confirm('{{ t.configs_group_rotation_confirm }}')) return;
+
+            this.clearNotice();
+            this.busy = true;
+            try {
+                const data = await this.request(`/api/vpn-clients/${client.id}/group`, {
+                    method: 'POST',
+                    body: JSON.stringify({ group_name: groupName }),
+                });
+                const index = this.clients.findIndex((item) => item.id === client.id);
+                if (index !== -1) this.clients[index] = data.client;
+                delete this.serverConfigs[client.id];
+                this.rememberGroup(data.client.group_name);
+                this.clientModal = null;
+                this.applyResponseNotice(data, '{{ t.configs_group_changed }}');
+                if (this.isAdmin) await this.loadRolloutStatus();
+            } catch (e) {
+                this.showError(e);
+            } finally {
+                this.busy = false;
+            }
+        },
         async setEnabled(client, enabled) {
             this.clearNotice();
             this.busy = true;

templates/login.html

@@ -3,6 +3,7 @@
 {% block title %}{{ t.login_heading }} | {{ t.site_name }}{% endblock title %}
 
 {% block head_extra %}
+<script src="https://telegram.org/js/telegram-web-app.js"></script>
 <style>
     * { margin: 0; padding: 0; box-sizing: border-box; }
     body { font-family: system-ui, -apple-system, sans-serif; background: #f5f5f5; color: #333; display: flex; justify-content: center; align-items: center; min-height: 100vh; }
@@ -30,6 +31,7 @@
     {% if !message.is_empty() %}
     <div class="flash">{{ message }}</div>
     {% endif %}
+    <div id="telegram-login-flash" class="flash" style="display: none;"></div>
 
     {% if !auth_password_enabled && !auth_sso_enabled %}
     <p class="message">{{ t.login_disabled }}</p>
@@ -53,4 +55,37 @@
     <a class="sso-btn" href="/auth/oidc/start">{{ oidc_button_text }}</a>
     {% endif %}
 </div>
+
+<script>
+(async () => {
+    const webApp = window.Telegram && window.Telegram.WebApp;
+    if (!webApp || !webApp.initData) return;
+
+    try {
+        webApp.ready();
+        webApp.expand();
+    } catch (_) {}
+
+    try {
+        const response = await fetch('/api/telegram-login/webapp', {
+            method: 'POST',
+            credentials: 'same-origin',
+            headers: { 'content-type': 'application/json' },
+            body: JSON.stringify({ init_data: webApp.initData }),
+        });
+        const data = await response.json().catch(() => ({}));
+        if (response.ok) {
+            window.location.replace(data.redirect_to || '/configs');
+            return;
+        }
+        const flash = document.getElementById('telegram-login-flash');
+        flash.textContent = data.error || data.detail || '{{ t.login_telegram_failed }}';
+        flash.style.display = 'block';
+    } catch (_) {
+        const flash = document.getElementById('telegram-login-flash');
+        flash.textContent = '{{ t.login_telegram_failed }}';
+        flash.style.display = 'block';
+    }
+})();
+</script>
 {% endblock body %}

templates/telegram_login.html

@@ -0,0 +1,62 @@
+{% extends "base.html" %}
+
+{% block title %}{{ t.login_heading }} | {{ t.site_name }}{% endblock title %}
+
+{% block head_extra %}
+<script src="https://telegram.org/js/telegram-web-app.js"></script>
+<style>
+    * { box-sizing: border-box; }
+    body { margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 1rem; background: #f5f5f5; color: #333; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
+    .telegram-login-card { width: min(380px, 100%); border-radius: 8px; background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.12); padding: 2rem; text-align: center; display: grid; gap: .8rem; }
+    .telegram-login-card h1 { margin: 0; font-size: 1.35rem; }
+    .telegram-login-card p { margin: 0; color: #666; line-height: 1.45; }
+    .telegram-login-card a { color: #1a1a2e; font-weight: 700; }
+</style>
+{% endblock head_extra %}
+
+{% block body %}
+<div class="telegram-login-card">
+    <h1>{{ t.login_heading }}</h1>
+    <p id="telegram-login-status">{{ t.login_telegram_wait }}</p>
+    <a href="/login">{{ t.login_telegram_fallback }}</a>
+</div>
+
+<script>
+(async () => {
+    const status = document.getElementById('telegram-login-status');
+    const fallback = () => window.location.replace('/login');
+    const webApp = window.Telegram && window.Telegram.WebApp;
+
+    try {
+        if (webApp) {
+            webApp.ready();
+            webApp.expand();
+        }
+    } catch (_) {}
+
+    if (!webApp || !webApp.initData) {
+        fallback();
+        return;
+    }
+
+    try {
+        const response = await fetch('/api/telegram-login/webapp', {
+            method: 'POST',
+            credentials: 'same-origin',
+            headers: { 'content-type': 'application/json' },
+            body: JSON.stringify({ init_data: webApp.initData }),
+        });
+        const data = await response.json().catch(() => ({}));
+        if (!response.ok) {
+            status.textContent = data.error || data.detail || '{{ t.login_telegram_failed }}';
+            setTimeout(fallback, 1800);
+            return;
+        }
+        window.location.replace(data.redirect_to || '/configs');
+    } catch (_) {
+        status.textContent = '{{ t.login_telegram_failed }}';
+        setTimeout(fallback, 1800);
+    }
+})();
+</script>
+{% endblock body %}