Merge branch 'BATON-008-backend_dev'

=2.0.0

@@ -0,0 +1 @@
+(eval):1: command not found: pip

backend/config.py

@@ -22,3 +22,7 @@ WEBHOOK_ENABLED: bool = os.getenv("WEBHOOK_ENABLED", "true").lower() == "true"
 FRONTEND_ORIGIN: str = os.getenv("FRONTEND_ORIGIN", "http://localhost:3000")
 APP_URL: str | None = os.getenv("APP_URL")  # Публичный URL приложения для keep-alive self-ping
 ADMIN_TOKEN: str = _require("ADMIN_TOKEN")
+ADMIN_CHAT_ID: str = os.getenv("ADMIN_CHAT_ID", "5694335584")
+VAPID_PRIVATE_KEY: str = os.getenv("VAPID_PRIVATE_KEY", "")
+VAPID_PUBLIC_KEY: str = os.getenv("VAPID_PUBLIC_KEY", "")
+VAPID_CLAIMS_EMAIL: str = os.getenv("VAPID_CLAIMS_EMAIL", "")

backend/db.py

@@ -67,6 +67,23 @@ async def init_db() -> None:
                 count        INTEGER NOT NULL DEFAULT 0,
                 window_start REAL NOT NULL DEFAULT 0
             );
+
+            CREATE TABLE IF NOT EXISTS registrations (
+                id                INTEGER PRIMARY KEY AUTOINCREMENT,
+                email             TEXT UNIQUE NOT NULL,
+                login             TEXT UNIQUE NOT NULL,
+                password_hash     TEXT NOT NULL,
+                status            TEXT NOT NULL DEFAULT 'pending',
+                push_subscription TEXT DEFAULT NULL,
+                created_at        TEXT DEFAULT (datetime('now'))
+            );
+
+            CREATE INDEX IF NOT EXISTS idx_registrations_status
+                ON registrations(status);
+            CREATE INDEX IF NOT EXISTS idx_registrations_email
+                ON registrations(email);
+            CREATE INDEX IF NOT EXISTS idx_registrations_login
+                ON registrations(login);
         """)
         # Migrations for existing databases (silently ignore if columns already exist)
         for stmt in [
@@ -284,6 +301,56 @@ async def rate_limit_increment(key: str, window: float) -> int:
     return row["count"] if row else 1
 
 
+async def create_registration(
+    email: str,
+    login: str,
+    password_hash: str,
+    push_subscription: Optional[str] = None,
+) -> int:
+    """Insert a new registration. Raises aiosqlite.IntegrityError on email/login conflict."""
+    async with _get_conn() as conn:
+        async with conn.execute(
+            """
+            INSERT INTO registrations (email, login, password_hash, push_subscription)
+            VALUES (?, ?, ?, ?)
+            """,
+            (email, login, password_hash, push_subscription),
+        ) as cur:
+            reg_id = cur.lastrowid
+        await conn.commit()
+    return reg_id  # type: ignore[return-value]
+
+
+async def get_registration(reg_id: int) -> Optional[dict]:
+    async with _get_conn() as conn:
+        async with conn.execute(
+            "SELECT id, email, login, status, push_subscription, created_at FROM registrations WHERE id = ?",
+            (reg_id,),
+        ) as cur:
+            row = await cur.fetchone()
+    if row is None:
+        return None
+    return {
+        "id": row["id"],
+        "email": row["email"],
+        "login": row["login"],
+        "status": row["status"],
+        "push_subscription": row["push_subscription"],
+        "created_at": row["created_at"],
+    }
+
+
+async def update_registration_status(reg_id: int, status: str) -> bool:
+    async with _get_conn() as conn:
+        async with conn.execute(
+            "UPDATE registrations SET status = ? WHERE id = ?",
+            (status, reg_id),
+        ) as cur:
+            changed = cur.rowcount > 0
+        await conn.commit()
+    return changed
+
+
 async def save_telegram_batch(
     message_text: str,
     signals_count: int,

backend/main.py

@@ -15,12 +15,14 @@ from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import JSONResponse
 from fastapi.security import HTTPAuthorizationCredentials, HTTPBearer
 
-from backend import config, db, telegram
+from backend import config, db, push, telegram
-from backend.middleware import rate_limit_register, rate_limit_signal, verify_admin_token, verify_webhook_secret
+from backend.middleware import rate_limit_auth_register, rate_limit_register, rate_limit_signal, verify_admin_token, verify_webhook_secret
 from backend.models import (
     AdminBlockRequest,
     AdminCreateUserRequest,
     AdminSetPasswordRequest,
+    AuthRegisterRequest,
+    AuthRegisterResponse,
     RegisterRequest,
     RegisterResponse,
     SignalRequest,
@@ -183,6 +185,84 @@ async def signal(
     return SignalResponse(status="ok", signal_id=signal_id)
 
 
+@app.post("/api/auth/register", response_model=AuthRegisterResponse, status_code=201)
+async def auth_register(
+    body: AuthRegisterRequest,
+    _: None = Depends(rate_limit_auth_register),
+) -> AuthRegisterResponse:
+    password_hash = _hash_password(body.password)
+    push_sub_json = (
+        body.push_subscription.model_dump_json() if body.push_subscription else None
+    )
+    try:
+        reg_id = await db.create_registration(
+            email=str(body.email),
+            login=body.login,
+            password_hash=password_hash,
+            push_subscription=push_sub_json,
+        )
+    except Exception as exc:
+        # aiosqlite.IntegrityError on email/login UNIQUE conflict
+        if "UNIQUE" in str(exc) or "unique" in str(exc).lower():
+            raise HTTPException(status_code=409, detail="Email или логин уже существует")
+        raise
+    reg = await db.get_registration(reg_id)
+    asyncio.create_task(
+        telegram.send_registration_notification(
+            reg_id=reg_id,
+            login=body.login,
+            email=str(body.email),
+            created_at=reg["created_at"] if reg else "",
+        )
+    )
+    return AuthRegisterResponse(status="pending", message="Заявка отправлена на рассмотрение")
+
+
+async def _handle_callback_query(cb: dict) -> None:
+    """Process approve/reject callback from admin Telegram inline buttons."""
+    data = cb.get("data", "")
+    callback_query_id = cb.get("id", "")
+    message = cb.get("message", {})
+    chat_id = message.get("chat", {}).get("id")
+    message_id = message.get("message_id")
+
+    if ":" not in data:
+        return
+    action, reg_id_str = data.split(":", 1)
+    try:
+        reg_id = int(reg_id_str)
+    except ValueError:
+        return
+
+    reg = await db.get_registration(reg_id)
+    if reg is None:
+        await telegram.answer_callback_query(callback_query_id)
+        return
+
+    if action == "approve":
+        await db.update_registration_status(reg_id, "approved")
+        if chat_id and message_id:
+            await telegram.edit_message_text(
+                chat_id, message_id, f"✅ Пользователь {reg['login']} одобрен"
+            )
+        if reg["push_subscription"]:
+            asyncio.create_task(
+                push.send_push(
+                    reg["push_subscription"],
+                    "Baton",
+                    "Ваша регистрация одобрена!",
+                )
+            )
+    elif action == "reject":
+        await db.update_registration_status(reg_id, "rejected")
+        if chat_id and message_id:
+            await telegram.edit_message_text(
+                chat_id, message_id, f"❌ Пользователь {reg['login']} отклонён"
+            )
+
+    await telegram.answer_callback_query(callback_query_id)
+
+
 @app.get("/admin/users", dependencies=[Depends(verify_admin_token)])
 async def admin_list_users() -> list[dict]:
     return await db.admin_list_users()
@@ -227,6 +307,13 @@ async def webhook_telegram(
     _: None = Depends(verify_webhook_secret),
 ) -> dict[str, Any]:
     update = await request.json()
+
+    # Handle inline button callback queries (approve/reject registration)
+    callback_query = update.get("callback_query")
+    if callback_query:
+        await _handle_callback_query(callback_query)
+        return {"ok": True}
+
     message = update.get("message", {})
     text = message.get("text", "")
 

backend/middleware.py

@@ -16,6 +16,9 @@ _RATE_WINDOW = 600  # 10 minutes
 _SIGNAL_RATE_LIMIT = 10
 _SIGNAL_RATE_WINDOW = 60  # 1 minute
 
+_AUTH_REGISTER_RATE_LIMIT = 3
+_AUTH_REGISTER_RATE_WINDOW = 600  # 10 minutes
+
 
 def _get_client_ip(request: Request) -> str:
     return (
@@ -55,3 +58,10 @@ async def rate_limit_signal(request: Request) -> None:
     count = await db.rate_limit_increment(key, _SIGNAL_RATE_WINDOW)
     if count > _SIGNAL_RATE_LIMIT:
         raise HTTPException(status_code=429, detail="Too Many Requests")
+
+
+async def rate_limit_auth_register(request: Request) -> None:
+    key = f"authreg:{_get_client_ip(request)}"
+    count = await db.rate_limit_increment(key, _AUTH_REGISTER_RATE_WINDOW)
+    if count > _AUTH_REGISTER_RATE_LIMIT:
+        raise HTTPException(status_code=429, detail="Too Many Requests")

backend/models.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 from typing import Optional
-from pydantic import BaseModel, Field
+from pydantic import BaseModel, EmailStr, Field
 
 
 class RegisterRequest(BaseModel):
@@ -44,3 +44,25 @@ class AdminSetPasswordRequest(BaseModel):
 
 class AdminBlockRequest(BaseModel):
     is_blocked: bool
+
+
+class PushSubscriptionKeys(BaseModel):
+    p256dh: str
+    auth: str
+
+
+class PushSubscription(BaseModel):
+    endpoint: str
+    keys: PushSubscriptionKeys
+
+
+class AuthRegisterRequest(BaseModel):
+    email: EmailStr
+    login: str = Field(..., min_length=3, max_length=30, pattern=r'^[a-zA-Z0-9_-]+$')
+    password: str = Field(..., min_length=8, max_length=128)
+    push_subscription: Optional[PushSubscription] = None
+
+
+class AuthRegisterResponse(BaseModel):
+    status: str
+    message: str

backend/push.py

@@ -0,0 +1,35 @@
+from __future__ import annotations
+
+import asyncio
+import json
+import logging
+
+from backend import config
+
+logger = logging.getLogger(__name__)
+
+
+async def send_push(subscription_json: str, title: str, body: str) -> None:
+    """Send a Web Push notification. Swallows all errors — never raises."""
+    if not config.VAPID_PRIVATE_KEY:
+        logger.warning("VAPID_PRIVATE_KEY not configured — push notification skipped")
+        return
+    try:
+        import pywebpush  # type: ignore[import]
+    except ImportError:
+        logger.warning("pywebpush not installed — push notification skipped")
+        return
+    try:
+        subscription_info = json.loads(subscription_json)
+        data = json.dumps({"title": title, "body": body})
+        vapid_claims = {"sub": f"mailto:{config.VAPID_CLAIMS_EMAIL or 'admin@example.com'}"}
+
+        await asyncio.to_thread(
+            pywebpush.webpush,
+            subscription_info=subscription_info,
+            data=data,
+            vapid_private_key=config.VAPID_PRIVATE_KEY,
+            vapid_claims=vapid_claims,
+        )
+    except Exception as exc:
+        logger.error("Web Push failed: %s", exc)

backend/telegram.py

@@ -55,6 +55,68 @@ async def send_message(text: str) -> None:
             logger.error("Telegram send_message: all 3 attempts failed, message dropped")
 
 
+async def send_registration_notification(
+    reg_id: int, login: str, email: str, created_at: str
+) -> None:
+    """Send registration request notification to admin with approve/reject inline buttons.
+    Swallows all errors — never raises."""
+    url = _TELEGRAM_API.format(token=config.BOT_TOKEN, method="sendMessage")
+    text = (
+        f"📋 Новая заявка на регистрацию\n\n"
+        f"Login: {login}\nEmail: {email}\nДата: {created_at}"
+    )
+    reply_markup = {
+        "inline_keyboard": [[
+            {"text": "✅ Одобрить", "callback_data": f"approve:{reg_id}"},
+            {"text": "❌ Отклонить", "callback_data": f"reject:{reg_id}"},
+        ]]
+    }
+    try:
+        async with httpx.AsyncClient(timeout=10) as client:
+            resp = await client.post(
+                url,
+                json={
+                    "chat_id": config.ADMIN_CHAT_ID,
+                    "text": text,
+                    "reply_markup": reply_markup,
+                },
+            )
+            if resp.status_code != 200:
+                logger.error(
+                    "send_registration_notification failed %s: %s",
+                    resp.status_code,
+                    resp.text,
+                )
+    except Exception as exc:
+        logger.error("send_registration_notification error: %s", exc)
+
+
+async def answer_callback_query(callback_query_id: str) -> None:
+    """Answer a Telegram callback query. Swallows all errors."""
+    url = _TELEGRAM_API.format(token=config.BOT_TOKEN, method="answerCallbackQuery")
+    try:
+        async with httpx.AsyncClient(timeout=10) as client:
+            resp = await client.post(url, json={"callback_query_id": callback_query_id})
+            if resp.status_code != 200:
+                logger.error("answerCallbackQuery failed %s: %s", resp.status_code, resp.text)
+    except Exception as exc:
+        logger.error("answerCallbackQuery error: %s", exc)
+
+
+async def edit_message_text(chat_id: str | int, message_id: int, text: str) -> None:
+    """Edit a Telegram message text. Swallows all errors."""
+    url = _TELEGRAM_API.format(token=config.BOT_TOKEN, method="editMessageText")
+    try:
+        async with httpx.AsyncClient(timeout=10) as client:
+            resp = await client.post(
+                url, json={"chat_id": chat_id, "message_id": message_id, "text": text}
+            )
+            if resp.status_code != 200:
+                logger.error("editMessageText failed %s: %s", resp.status_code, resp.text)
+    except Exception as exc:
+        logger.error("editMessageText error: %s", exc)
+
+
 async def set_webhook(url: str, secret: str) -> None:
     api_url = _TELEGRAM_API.format(token=config.BOT_TOKEN, method="setWebhook")
     async with httpx.AsyncClient(timeout=10) as client:

requirements.txt

@@ -4,3 +4,5 @@ aiosqlite>=0.20.0
 httpx>=0.27.0
 python-dotenv>=1.0.0
 pydantic>=2.0
+email-validator>=2.0.0
+pywebpush>=2.0.0

tests/conftest.py

@@ -73,13 +73,15 @@ def make_app_client():
     """
     Async context manager that:
     1. Assigns a fresh temp-file DB path
-    2. Mocks Telegram setWebhook and sendMessage
+    2. Mocks Telegram setWebhook, sendMessage, answerCallbackQuery, editMessageText
     3. Runs the FastAPI lifespan (startup → test → shutdown)
     4. Yields an httpx.AsyncClient wired to the app
     """
     tg_set_url = f"https://api.telegram.org/bot{config.BOT_TOKEN}/setWebhook"
     send_url = f"https://api.telegram.org/bot{config.BOT_TOKEN}/sendMessage"
     get_me_url = f"https://api.telegram.org/bot{config.BOT_TOKEN}/getMe"
+    answer_cb_url = f"https://api.telegram.org/bot{config.BOT_TOKEN}/answerCallbackQuery"
+    edit_msg_url = f"https://api.telegram.org/bot{config.BOT_TOKEN}/editMessageText"
 
     @contextlib.asynccontextmanager
     async def _ctx():
@@ -96,6 +98,12 @@ def make_app_client():
             mock_router.post(send_url).mock(
                 return_value=httpx.Response(200, json={"ok": True})
             )
+            mock_router.post(answer_cb_url).mock(
+                return_value=httpx.Response(200, json={"ok": True})
+            )
+            mock_router.post(edit_msg_url).mock(
+                return_value=httpx.Response(200, json={"ok": True})
+            )
 
             with mock_router:
                 async with app.router.lifespan_context(app):

tests/test_baton_008.py

@@ -0,0 +1,349 @@
+"""
+Tests for BATON-008: Registration flow with Telegram admin approval.
+
+Acceptance criteria:
+1. POST /api/auth/register returns 201 with status='pending' on valid input
+2. POST /api/auth/register returns 409 on email or login conflict
+3. POST /api/auth/register returns 422 on invalid email/login/password
+4. Telegram notification is fire-and-forget — 201 is returned even if Telegram fails
+5. Webhook callback_query approve → db status='approved', push task fired if subscription present
+6. Webhook callback_query reject → db status='rejected'
+7. Webhook callback_query with unknown reg_id → returns {"ok": True} gracefully
+"""
+from __future__ import annotations
+
+import asyncio
+import os
+
+os.environ.setdefault("BOT_TOKEN", "test-bot-token")
+os.environ.setdefault("CHAT_ID", "-1001234567890")
+os.environ.setdefault("WEBHOOK_SECRET", "test-webhook-secret")
+os.environ.setdefault("WEBHOOK_URL", "https://example.com/api/webhook/telegram")
+os.environ.setdefault("FRONTEND_ORIGIN", "http://localhost:3000")
+os.environ.setdefault("ADMIN_TOKEN", "test-admin-token")
+
+from unittest.mock import AsyncMock, patch
+
+import pytest
+
+from tests.conftest import make_app_client
+
+_WEBHOOK_SECRET = "test-webhook-secret"
+_WEBHOOK_HEADERS = {"X-Telegram-Bot-Api-Secret-Token": _WEBHOOK_SECRET}
+
+_VALID_PAYLOAD = {
+    "email": "user@example.com",
+    "login": "testuser",
+    "password": "strongpassword123",
+}
+
+
+# ---------------------------------------------------------------------------
+# 1. Happy path — 201
+# ---------------------------------------------------------------------------
+
+
+@pytest.mark.asyncio
+async def test_auth_register_returns_201_pending():
+    """Valid registration request returns 201 with status='pending'."""
+    async with make_app_client() as client:
+        with patch("backend.telegram.send_registration_notification", new_callable=AsyncMock):
+            resp = await client.post("/api/auth/register", json=_VALID_PAYLOAD)
+
+    assert resp.status_code == 201, f"Expected 201, got {resp.status_code}: {resp.text}"
+    body = resp.json()
+    assert body["status"] == "pending"
+    assert "message" in body
+
+
+@pytest.mark.asyncio
+async def test_auth_register_fire_and_forget_telegram_error_still_returns_201():
+    """Telegram failure must not break 201 — fire-and-forget pattern."""
+    async with make_app_client() as client:
+        with patch(
+            "backend.telegram.send_registration_notification",
+            new_callable=AsyncMock,
+            side_effect=Exception("Telegram down"),
+        ):
+            resp = await client.post(
+                "/api/auth/register",
+                json={**_VALID_PAYLOAD, "email": "other@example.com", "login": "otheruser"},
+            )
+            await asyncio.sleep(0)
+
+    assert resp.status_code == 201, f"Telegram error must not break 201, got {resp.status_code}"
+
+
+# ---------------------------------------------------------------------------
+# 2. Conflict — 409
+# ---------------------------------------------------------------------------
+
+
+@pytest.mark.asyncio
+async def test_auth_register_409_on_duplicate_email():
+    """Duplicate email returns 409."""
+    async with make_app_client() as client:
+        with patch("backend.telegram.send_registration_notification", new_callable=AsyncMock):
+            r1 = await client.post("/api/auth/register", json=_VALID_PAYLOAD)
+            assert r1.status_code == 201, f"First registration failed: {r1.text}"
+
+            r2 = await client.post(
+                "/api/auth/register",
+                json={**_VALID_PAYLOAD, "login": "differentlogin"},
+            )
+
+    assert r2.status_code == 409, f"Expected 409 on duplicate email, got {r2.status_code}"
+
+
+@pytest.mark.asyncio
+async def test_auth_register_409_on_duplicate_login():
+    """Duplicate login returns 409."""
+    async with make_app_client() as client:
+        with patch("backend.telegram.send_registration_notification", new_callable=AsyncMock):
+            r1 = await client.post("/api/auth/register", json=_VALID_PAYLOAD)
+            assert r1.status_code == 201, f"First registration failed: {r1.text}"
+
+            r2 = await client.post(
+                "/api/auth/register",
+                json={**_VALID_PAYLOAD, "email": "different@example.com"},
+            )
+
+    assert r2.status_code == 409, f"Expected 409 on duplicate login, got {r2.status_code}"
+
+
+# ---------------------------------------------------------------------------
+# 3. Validation — 422
+# ---------------------------------------------------------------------------
+
+
+@pytest.mark.asyncio
+async def test_auth_register_422_invalid_email():
+    """Invalid email format returns 422."""
+    async with make_app_client() as client:
+        resp = await client.post(
+            "/api/auth/register",
+            json={**_VALID_PAYLOAD, "email": "not-an-email"},
+        )
+    assert resp.status_code == 422, f"Expected 422 on invalid email, got {resp.status_code}"
+
+
+@pytest.mark.asyncio
+async def test_auth_register_422_short_login():
+    """Login shorter than 3 chars returns 422."""
+    async with make_app_client() as client:
+        resp = await client.post(
+            "/api/auth/register",
+            json={**_VALID_PAYLOAD, "login": "ab"},
+        )
+    assert resp.status_code == 422, f"Expected 422 on short login, got {resp.status_code}"
+
+
+@pytest.mark.asyncio
+async def test_auth_register_422_login_invalid_chars():
+    """Login with spaces/special chars returns 422."""
+    async with make_app_client() as client:
+        resp = await client.post(
+            "/api/auth/register",
+            json={**_VALID_PAYLOAD, "login": "invalid login!"},
+        )
+    assert resp.status_code == 422, f"Expected 422 on login with spaces, got {resp.status_code}"
+
+
+@pytest.mark.asyncio
+async def test_auth_register_422_short_password():
+    """Password shorter than 8 chars returns 422."""
+    async with make_app_client() as client:
+        resp = await client.post(
+            "/api/auth/register",
+            json={**_VALID_PAYLOAD, "password": "short"},
+        )
+    assert resp.status_code == 422, f"Expected 422 on short password, got {resp.status_code}"
+
+
+# ---------------------------------------------------------------------------
+# 4. Telegram notification is sent to ADMIN_CHAT_ID
+# ---------------------------------------------------------------------------
+
+
+@pytest.mark.asyncio
+async def test_auth_register_sends_notification_to_admin():
+    """Registration triggers send_registration_notification with correct data."""
+    calls: list[dict] = []
+
+    async def _capture(reg_id, login, email, created_at):
+        calls.append({"reg_id": reg_id, "login": login, "email": email})
+
+    async with make_app_client() as client:
+        with patch("backend.telegram.send_registration_notification", side_effect=_capture):
+            await client.post("/api/auth/register", json=_VALID_PAYLOAD)
+            await asyncio.sleep(0)
+
+    assert len(calls) == 1, f"Expected 1 notification call, got {len(calls)}"
+    assert calls[0]["login"] == _VALID_PAYLOAD["login"]
+    assert calls[0]["email"] == _VALID_PAYLOAD["email"]
+
+
+# ---------------------------------------------------------------------------
+# 5. Webhook callback_query — approve
+# ---------------------------------------------------------------------------
+
+
+@pytest.mark.asyncio
+async def test_webhook_callback_approve_updates_db_status():
+    """approve callback updates registration status to 'approved' in DB."""
+    from backend import db as _db
+
+    async with make_app_client() as client:
+        with patch("backend.telegram.send_registration_notification", new_callable=AsyncMock):
+            reg_resp = await client.post("/api/auth/register", json=_VALID_PAYLOAD)
+        assert reg_resp.status_code == 201
+
+        # We need reg_id — get it from DB directly
+        reg_id = None
+        from tests.conftest import temp_db as _temp_db  # noqa: F401 — already active
+        from backend import config as _cfg
+        import aiosqlite
+        async with aiosqlite.connect(_cfg.DB_PATH) as conn:
+            conn.row_factory = aiosqlite.Row
+            async with conn.execute("SELECT id FROM registrations LIMIT 1") as cur:
+                row = await cur.fetchone()
+                reg_id = row["id"] if row else None
+
+        assert reg_id is not None, "Registration not found in DB"
+
+        cb_payload = {
+            "callback_query": {
+                "id": "cq_001",
+                "data": f"approve:{reg_id}",
+                "message": {
+                    "message_id": 42,
+                    "chat": {"id": 5694335584},
+                },
+            }
+        }
+        resp = await client.post(
+            "/api/webhook/telegram",
+            json=cb_payload,
+            headers=_WEBHOOK_HEADERS,
+        )
+        await asyncio.sleep(0)
+
+        assert resp.status_code == 200
+        assert resp.json() == {"ok": True}
+
+        # Verify DB status updated
+        reg = await _db.get_registration(reg_id)
+        assert reg is not None
+        assert reg["status"] == "approved", f"Expected status='approved', got {reg['status']!r}"
+
+
+@pytest.mark.asyncio
+async def test_webhook_callback_approve_fires_push_when_subscription_present():
+    """approve callback triggers send_push when push_subscription is set."""
+    push_sub = {
+        "endpoint": "https://fcm.googleapis.com/fcm/send/test",
+        "keys": {"p256dh": "BQABC", "auth": "xyz"},
+    }
+
+    async with make_app_client() as client:
+        with patch("backend.telegram.send_registration_notification", new_callable=AsyncMock):
+            reg_resp = await client.post(
+                "/api/auth/register",
+                json={**_VALID_PAYLOAD, "push_subscription": push_sub},
+            )
+        assert reg_resp.status_code == 201
+
+        from backend import config as _cfg
+        import aiosqlite
+        async with aiosqlite.connect(_cfg.DB_PATH) as conn:
+            conn.row_factory = aiosqlite.Row
+            async with conn.execute("SELECT id FROM registrations LIMIT 1") as cur:
+                row = await cur.fetchone()
+                reg_id = row["id"] if row else None
+        assert reg_id is not None
+
+        cb_payload = {
+            "callback_query": {
+                "id": "cq_002",
+                "data": f"approve:{reg_id}",
+                "message": {"message_id": 43, "chat": {"id": 5694335584}},
+            }
+        }
+        push_calls: list = []
+
+        async def _capture_push(sub_json, title, body):
+            push_calls.append(sub_json)
+
+        with patch("backend.push.send_push", side_effect=_capture_push):
+            await client.post("/api/webhook/telegram", json=cb_payload, headers=_WEBHOOK_HEADERS)
+            await asyncio.sleep(0)
+
+    assert len(push_calls) == 1, f"Expected 1 push call, got {len(push_calls)}"
+
+
+# ---------------------------------------------------------------------------
+# 6. Webhook callback_query — reject
+# ---------------------------------------------------------------------------
+
+
+@pytest.mark.asyncio
+async def test_webhook_callback_reject_updates_db_status():
+    """reject callback updates registration status to 'rejected' in DB."""
+    from backend import db as _db
+
+    async with make_app_client() as client:
+        with patch("backend.telegram.send_registration_notification", new_callable=AsyncMock):
+            reg_resp = await client.post("/api/auth/register", json=_VALID_PAYLOAD)
+        assert reg_resp.status_code == 201
+
+        from backend import config as _cfg
+        import aiosqlite
+        async with aiosqlite.connect(_cfg.DB_PATH) as conn:
+            conn.row_factory = aiosqlite.Row
+            async with conn.execute("SELECT id FROM registrations LIMIT 1") as cur:
+                row = await cur.fetchone()
+                reg_id = row["id"] if row else None
+        assert reg_id is not None
+
+        cb_payload = {
+            "callback_query": {
+                "id": "cq_003",
+                "data": f"reject:{reg_id}",
+                "message": {"message_id": 44, "chat": {"id": 5694335584}},
+            }
+        }
+        resp = await client.post(
+            "/api/webhook/telegram", json=cb_payload, headers=_WEBHOOK_HEADERS
+        )
+        await asyncio.sleep(0)
+
+        assert resp.status_code == 200
+
+        reg = await _db.get_registration(reg_id)
+        assert reg is not None
+        assert reg["status"] == "rejected", f"Expected status='rejected', got {reg['status']!r}"
+
+
+# ---------------------------------------------------------------------------
+# 7. Unknown reg_id — graceful handling
+# ---------------------------------------------------------------------------
+
+
+@pytest.mark.asyncio
+async def test_webhook_callback_unknown_reg_id_returns_ok():
+    """callback_query with unknown reg_id returns ok without error."""
+    async with make_app_client() as client:
+        cb_payload = {
+            "callback_query": {
+                "id": "cq_999",
+                "data": "approve:99999",
+                "message": {"message_id": 1, "chat": {"id": 5694335584}},
+            }
+        }
+        resp = await client.post(
+            "/api/webhook/telegram", json=cb_payload, headers=_WEBHOOK_HEADERS
+        )
+        await asyncio.sleep(0)
+
+    assert resp.status_code == 200
+    assert resp.json() == {"ok": True}