v0.1

.env.example

@@ -32,6 +32,14 @@ YOOKASSA_DEFAULT_RECEIPT_EMAIL=your_email@example.com                         #
 YOOKASSA_VAT_CODE=1                                                           # VAT code
 YOOKASSA_AUTOPAYMENTS_ENABLED=False                                           # Auto-renew toggle
 
+# FreeKassa Payment Gateway Configuration
+FREEKASSA_ENABLED=True                                                        # Turn on FreeKassa
+FREEKASSA_MERCHANT_ID=your_shop_id                                            # Your shop ID in FreeKassa
+FREEKASSA_API_KEY=your_api_key                                                # API key for REST requests
+FREEKASSA_SECOND_SECRET=your_second_secret                                    # Secret word #2 (used to verify notifications)
+FREEKASSA_CURRENCY=RUB                                                        # Default currency for orders
+FREEKASSA_PAYMENT_IP=                                                         # Public IP address reported to FreeKassa
+
 # CryptoBot Payment Gateway Configuration
 CRYPTOPAY_TOKEN=                                                              # API token for CryptoPay
 CRYPTOPAY_NETWORK=mainnet                                                     # Network (mainnet or testnet)

README.md

@@ -10,7 +10,7 @@
 -   **Пробная подписка:** Система пробных подписок для новых пользователей (активируется вручную по кнопке).
 -   **Промокоды:** Возможность применять промокоды для получения скидок или бонусных дней.
 -   **Реферальная программа:** Пользователи могут приглашать друзей и получать за это бонусные дни подписки.
--   **Оплата:** Поддержка оплаты через YooKassa, FreeKassa, CryptoPay, Telegram Stars и Tribute.
+-   **Оплата:** Поддержка оплаты через YooKassa, FreeKassa (REST API), CryptoPay, Telegram Stars и Tribute.
 
 ### Для администраторов:
 -   **Защищенная админ-панель:** Доступ только для администраторов, указанных в `ADMIN_IDS`.
@@ -83,10 +83,11 @@
     | `CRYPTOPAY_TOKEN` | Токен из вашего CryptoPay App. |
     | `FREEKASSA_ENABLED` | Включить/выключить FreeKassa (`true`/`false`). |
     | `FREEKASSA_MERCHANT_ID` | ID вашего магазина в FreeKassa. |
-    | `FREEKASSA_FIRST_SECRET` | Секретное слово №1 для формирования ссылок оплаты. |
+    | `FREEKASSA_API_KEY` | API-ключ для запросов к FreeKassa REST API. |
-    | `FREEKASSA_SECOND_SECRET` | Секретное слово №2 для проверки уведомлений. |
+    | `FREEKASSA_SECOND_SECRET` | Секретное слово №2 — используется для проверки уведомлений от FreeKassa. |
-    | `FREEKASSA_PAYMENT_URL` | (Опционально) Базовый URL платёжной формы FreeKassa. По умолчанию `https://pay.freekassa.ru/`. |
+    | `FREEKASSA_PAYMENT_URL` | (Опционально, legacy SCI) Базовый URL платёжной формы FreeKassa. По умолчанию `https://pay.freekassa.ru/`. |
     | `FREEKASSA_CURRENCY` | Код валюты платежа (например, `RUB`). |
+    | `FREEKASSA_PAYMENT_IP` | Внешний IP вашего сервера, который будет передаваться в запрос оплаты. |
     | `STARS_ENABLED` | Включить/выключить Telegram Stars (`true`/`false`). |
     | `TRIBUTE_ENABLED`| Включить/выключить Tribute (`true`/`false`). |
     </details>

bot/handlers/user/subscription/payments.py

@@ -1,5 +1,6 @@
 import logging
 from aiogram import Router, F, types
+from aiogram.utils.keyboard import InlineKeyboardBuilder
 from typing import Optional
 from sqlalchemy.ext.asyncio import AsyncSession
 
@@ -308,7 +309,7 @@ async def pay_fk_callback_handler(
 
     user_id = callback.from_user.id
     payment_description = get_text("payment_description_subscription", months=months)
-    currency_code = freekassa_service.currency or settings.DEFAULT_CURRENCY_SYMBOL or "RUB"
+    currency_code = getattr(freekassa_service, "default_currency", None) or settings.DEFAULT_CURRENCY_SYMBOL or "RUB"
 
     payment_record_payload = {
         "user_id": user_id,
@@ -339,30 +340,169 @@ async def pay_fk_callback_handler(
             pass
         return
 
-    payment_link = None
+    method_keyboard = InlineKeyboardBuilder()
-    try:
+    method_keyboard.button(
-        payment_link = freekassa_service.build_payment_link(
+        text=get_text("freekassa_method_qr"),
-            payment_db_id=payment_record.payment_id,
+        callback_data=f"pay_fk_method:{payment_record.payment_id}:44",
-            user_id=user_id,
-            months=months,
-            amount=price_rub,
     )
-    except Exception as e_link:
+    method_keyboard.button(
-        logging.error(f"FreeKassa: failed to build payment link for payment {payment_record.payment_id}: {e_link}", exc_info=True)
+        text=get_text("freekassa_method_card"),
+        callback_data=f"pay_fk_method:{payment_record.payment_id}:36",
+    )
+    method_keyboard.button(
+        text=get_text("freekassa_method_sberpay"),
+        callback_data=f"pay_fk_method:{payment_record.payment_id}:43",
+    )
+    method_keyboard.button(
+        text=get_text("back_to_main_menu_button"),
+        callback_data="main_action:subscribe",
+    )
+    method_keyboard.adjust(1)
 
-    if payment_link:
+    try:
+        await callback.message.edit_text(
+            get_text("freekassa_choose_method"),
+            reply_markup=method_keyboard.as_markup(),
+        )
+    except Exception as e_edit:
+        logging.warning(f"FreeKassa: failed to show method selector ({e_edit}), sending new message.")
+        try:
+            await callback.message.answer(
+                get_text("freekassa_choose_method"),
+                reply_markup=method_keyboard.as_markup(),
+            )
+        except Exception:
+            pass
+    try:
+        await callback.answer()
+    except Exception:
+        pass
+
+
+@router.callback_query(F.data.startswith("pay_fk_method:"))
+async def pay_fk_method_callback_handler(
+    callback: types.CallbackQuery,
+    settings: Settings,
+    i18n_data: dict,
+    freekassa_service: FreeKassaService,
+    session: AsyncSession,
+):
+    current_lang = i18n_data.get("current_language", settings.DEFAULT_LANGUAGE)
+    i18n: Optional[JsonI18n] = i18n_data.get("i18n_instance")
+    get_text = lambda key, **kwargs: i18n.gettext(current_lang, key, **kwargs) if i18n else key
+
+    if not i18n or not callback.message:
+        try:
+            await callback.answer(get_text("error_occurred_try_again"), show_alert=True)
+        except Exception:
+            pass
+        return
+
+    if not freekassa_service or not freekassa_service.configured:
+        try:
+            await callback.answer(get_text("payment_service_unavailable_alert"), show_alert=True)
+        except Exception:
+            pass
+        try:
+            await callback.message.edit_text(get_text("payment_service_unavailable"))
+        except Exception:
+            pass
+        return
+
+    try:
+        _, payload = callback.data.split(":", 1)
+        payment_id_str, method_code = payload.split(":")
+        payment_id = int(payment_id_str)
+    except (ValueError, IndexError):
+        logging.error(f"FreeKassa: invalid method payload {callback.data}")
+        try:
+            await callback.answer(get_text("error_try_again"), show_alert=True)
+        except Exception:
+            pass
+        return
+
+    try:
+        payment_record = await payment_dal.get_payment_by_db_id(session, payment_id)
+    except Exception as e_db:
+        logging.error(f"FreeKassa: failed to load payment {payment_id}: {e_db}")
+        payment_record = None
+
+    if not payment_record:
+        try:
+            await callback.answer(get_text("error_payment_gateway"), show_alert=True)
+        except Exception:
+            pass
+        return
+
+    if payment_record.user_id != callback.from_user.id:
+        logging.warning(
+            f"FreeKassa: user {callback.from_user.id} attempted to access payment {payment_id} owned by {payment_record.user_id}"
+        )
+        try:
+            await callback.answer(get_text("error_payment_gateway"), show_alert=True)
+        except Exception:
+            pass
+        return
+
+    months = payment_record.subscription_duration_months or 1
+    amount = float(payment_record.amount)
+
+    try:
+        method_code_int = int(method_code)
+    except (TypeError, ValueError):
+        logging.error(f"FreeKassa: invalid method code {method_code} for payment {payment_record.payment_id}")
+        try:
+            await callback.answer(get_text("error_payment_gateway"), show_alert=True)
+        except Exception:
+            pass
+        return
+
+    success, response_data = await freekassa_service.create_order(
+        payment_db_id=payment_record.payment_id,
+        user_id=payment_record.user_id,
+        months=months,
+        amount=amount,
+        currency=settings.DEFAULT_CURRENCY_SYMBOL or "RUB",
+        method_code=method_code_int,
+        ip_address=freekassa_service.server_ip,
+        extra_params={
+            "us_method": method_code_int,
+        },
+    )
+
+    if success:
+        location = response_data.get("location")
+        provider_identifier = response_data.get("orderHash") or response_data.get("orderId")
+
+        if provider_identifier:
+            try:
+                await payment_dal.update_provider_payment_and_status(
+                    session,
+                    payment_record.payment_id,
+                    str(provider_identifier),
+                    payment_record.status,
+                )
+                await session.commit()
+            except Exception as e_status:
+                await session.rollback()
+                logging.error(
+                    f"FreeKassa: failed to store provider order id for payment {payment_record.payment_id}: {e_status}",
+                    exc_info=True,
+                )
+
+        if location:
             try:
                 await callback.message.edit_text(
                     get_text(key="payment_link_message", months=months),
-                reply_markup=get_payment_url_keyboard(payment_link, current_lang, i18n),
+                    reply_markup=get_payment_url_keyboard(location, current_lang, i18n),
                     disable_web_page_preview=False,
                 )
             except Exception as e_edit:
-            logging.warning(f"FreeKassa: edit message failed ({e_edit}), sending new message.")
+                logging.warning(f"FreeKassa: failed to display payment link ({e_edit}), sending new message.")
                 try:
                     await callback.message.answer(
                         get_text(key="payment_link_message", months=months),
-                    reply_markup=get_payment_url_keyboard(payment_link, current_lang, i18n),
+                        reply_markup=get_payment_url_keyboard(location, current_lang, i18n),
                         disable_web_page_preview=False,
                     )
                 except Exception:
@@ -373,6 +513,18 @@ async def pay_fk_callback_handler(
                 pass
             return
 
+        logging.error(
+            "FreeKassa: create_order succeeded but no payment link returned for payment %s. Response: %s",
+            payment_record.payment_id,
+            response_data,
+        )
+    else:
+        logging.error(
+            "FreeKassa: create_order failed for payment %s with response %s",
+            payment_record.payment_id,
+            response_data,
+        )
+
     try:
         await payment_dal.update_payment_status_by_db_id(
             session,

bot/services/freekassa_service.py

@@ -1,10 +1,13 @@
+import asyncio
 import hashlib
+import hmac
+import json
 import logging
+import time
 from decimal import Decimal, ROUND_HALF_UP
-from typing import Optional, Dict, Any
+from typing import Optional, Dict, Any, Tuple
-from urllib.parse import urlencode
 
-from aiohttp import web
+from aiohttp import ClientSession, ClientTimeout, web
 from aiogram import Bot
 from sqlalchemy.orm import sessionmaker
 
@@ -36,68 +39,162 @@ class FreeKassaService:
         self.subscription_service = subscription_service
         self.referral_service = referral_service
 
-        self.merchant_id: Optional[str] = settings.FREEKASSA_MERCHANT_ID
+        self.shop_id: Optional[str] = settings.FREEKASSA_MERCHANT_ID
-        self.first_secret: Optional[str] = settings.FREEKASSA_FIRST_SECRET
+        self.api_key: Optional[str] = settings.FREEKASSA_API_KEY
         self.second_secret: Optional[str] = settings.FREEKASSA_SECOND_SECRET
-        self.payment_url: str = settings.FREEKASSA_PAYMENT_URL.rstrip("/")
+        self.default_currency: str = (
-        self.currency: str = settings.FREEKASSA_CURRENCY.upper() if settings.FREEKASSA_CURRENCY else "RUB"
+            settings.FREEKASSA_CURRENCY or settings.DEFAULT_CURRENCY_SYMBOL or "RUB"
+        ).upper()
+        self.server_ip: Optional[str] = settings.FREEKASSA_PAYMENT_IP
 
-        self.configured: bool = bool(
+        self.api_base_url: str = "https://api.fk.life/v1"
-            settings.FREEKASSA_ENABLED
+        self._timeout = ClientTimeout(total=15)
-            and self.merchant_id
+        self._session: Optional[ClientSession] = None
-            and self.first_secret
+        self._nonce_lock = asyncio.Lock()
-            and self.second_secret
+        self._last_nonce = int(time.time() * 1000)
-        )
+
+        self.configured: bool = bool(settings.FREEKASSA_ENABLED and self.shop_id and self.api_key)
         if not self.configured:
             logging.warning("FreeKassaService initialized but not fully configured. Payments disabled.")
+        if settings.FREEKASSA_ENABLED and not self.server_ip:
+            logging.warning("FreeKassaService: FREEKASSA_PAYMENT_IP is not set. Requests may be rejected by the provider.")
 
     @staticmethod
     def _format_amount(amount: float) -> str:
-        """Format amount for signatures with two decimal places."""
+        """Format amount for payloads and signature with two decimal places."""
         quantized = Decimal(str(amount)).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
         return f"{quantized:.2f}"
 
-    def build_payment_link(
+    async def create_order(
         self,
         *,
         payment_db_id: int,
         user_id: int,
         months: int,
         amount: float,
+        currency: Optional[str],
+        method_code: int,
+        email: Optional[str] = None,
+        ip_address: Optional[str] = None,
         extra_params: Optional[Dict[str, Any]] = None,
-    ) -> Optional[str]:
+    ) -> Tuple[bool, Dict[str, Any]]:
         if not self.configured:
-            logging.error("FreeKassaService is not configured. Cannot build payment link.")
+            logging.error("FreeKassaService is not configured. Cannot create order.")
-            return None
+            return False, {"message": "service_not_configured"}
 
+        ip_address = ip_address or self.server_ip
+        if not ip_address:
+            logging.error("FreeKassaService: payment IP is required but not configured.")
+            return False, {"message": "missing_ip"}
+
+        email = email or f"{user_id}@telegram.org"
         amount_str = self._format_amount(amount)
-        signature_source = f"{self.merchant_id}:{amount_str}:{self.first_secret}:{payment_db_id}"
+        currency_code = (currency or self.default_currency or "RUB").upper()
-        signature = hashlib.md5(signature_source.encode("utf-8")).hexdigest()
 
-        params: Dict[str, Any] = {
+        payload: Dict[str, Any] = {
-            "m": self.merchant_id,
+            "shopId": int(self.shop_id),
-            "oa": amount_str,
+            "nonce": await self._generate_nonce(),
-            "o": str(payment_db_id),
+            "paymentId": str(payment_db_id),
-            "currency": self.currency,
+            "i": int(method_code),
-            "s": signature,
+            "amount": amount_str,
+            "currency": currency_code,
+            "email": email,
+            "ip": ip_address,
             "us_user_id": str(user_id),
             "us_months": str(months),
+            "us_payment_db_id": str(payment_db_id),
         }
+
         if extra_params:
             for key, value in extra_params.items():
                 if value is None:
                     continue
-                params[f"us_{key}"] = value
+                payload[key] = value
 
-        query_string = urlencode(params, doseq=False, safe=":")
+        payload["signature"] = self._sign_payload(payload)
-        return f"{self.payment_url}?{query_string}"
 
-    def _validate_signature(self, merchant_order_id: str, amount: str, provided_signature: str) -> bool:
+        session = await self._get_session()
-        if not self.configured:
+        url = f"{self.api_base_url}/orders/create"
+        try:
+            async with session.post(url, json=payload) as response:
+                response_text = await response.text()
+                try:
+                    response_data = json.loads(response_text) if response_text else {}
+                except json.JSONDecodeError:
+                    logging.error("FreeKassa create_order: failed to decode JSON: %s", response_text)
+                    return False, {"status": response.status, "message": "invalid_json", "raw": response_text}
+
+                if response.status != 200 or response_data.get("type") != "success":
+                    logging.error(
+                        "FreeKassa create_order: API returned error (status=%s, body=%s)",
+                        response.status,
+                        response_data,
+                    )
+                    return False, {"status": response.status, "message": response_data}
+
+                return True, response_data
+        except Exception as exc:
+            logging.error("FreeKassa create_order: request failed: %s", exc, exc_info=True)
+            return False, {"message": str(exc)}
+
+    async def _get_session(self) -> ClientSession:
+        if self._session is None or self._session.closed:
+            self._session = ClientSession(timeout=self._timeout)
+        return self._session
+
+    async def _generate_nonce(self) -> int:
+        async with self._nonce_lock:
+            candidate = int(time.time() * 1000)
+            if candidate <= self._last_nonce:
+                candidate = self._last_nonce + 1
+            self._last_nonce = candidate
+            return candidate
+
+    def _sign_payload(self, payload: Dict[str, Any]) -> str:
+        if not self.api_key:
+            raise RuntimeError("FreeKassa API key is not configured.")
+        items = [
+            (key, value)
+            for key, value in payload.items()
+            if key != "signature" and value is not None
+        ]
+        items.sort(key=lambda pair: pair[0])
+        message = "|".join(str(value) for _, value in items)
+        return hmac.new(self.api_key.encode("utf-8"), message.encode("utf-8"), hashlib.sha256).hexdigest()
+
+    async def close(self) -> None:
+        if self._session and not self._session.closed:
+            await self._session.close()
+
+    def _validate_signature(
+        self,
+        merchant_order_id: str,
+        amount: str,
+        provided_signature: str,
+        payload: Optional[Dict[str, Any]] = None,
+    ) -> bool:
+        if not provided_signature:
             return False
-        signature_source = f"{self.merchant_id}:{amount}:{self.second_secret}:{merchant_order_id}"
+
+        if self.shop_id and self.second_secret:
+            signature_source = f"{self.shop_id}:{amount}:{self.second_secret}:{merchant_order_id}"
             expected_signature = hashlib.md5(signature_source.encode("utf-8")).hexdigest()
-        return expected_signature.lower() == provided_signature.lower()
+            if expected_signature.lower() == provided_signature.lower():
+                return True
+
+        if self.api_key and payload:
+            items = [
+                (key, value)
+                for key, value in payload.items()
+                if key not in {"signature", "SIGN"} and value is not None
+            ]
+            items.sort(key=lambda pair: pair[0])
+            message = "|".join(str(value) for _, value in items)
+            alt_signature = hmac.new(self.api_key.encode("utf-8"), message.encode("utf-8"), hashlib.sha256).hexdigest()
+            if alt_signature.lower() == provided_signature.lower():
+                return True
+
+        return False
 
     async def webhook_route(self, request: web.Request) -> web.Response:
         if not self.configured:
@@ -109,21 +206,29 @@ class FreeKassaService:
             logging.error(f"FreeKassa webhook: failed to read POST data: {e}")
             return web.Response(status=400, text="bad_request")
 
-        if not data:
+        payload_dict: Dict[str, Any]
+        if data:
+            payload_dict = {str(k): v for k, v in data.items()}
+        else:
             try:
-                data = await request.json()
+                json_payload = await request.json()
+                payload_dict = {str(k): v for k, v in json_payload.items()} if isinstance(json_payload, dict) else {}
+                data = json_payload
             except Exception:
+                payload_dict = {}
                 data = {}
 
         def _get(key: str, default: Optional[str] = None) -> Optional[str]:
+            if isinstance(data, dict):
                 return data.get(key) or data.get(key.lower()) or default
+            return payload_dict.get(key) or payload_dict.get(key.lower()) or default
 
         merchant_id = _get("MERCHANT_ID")
-        if merchant_id != self.merchant_id:
+        if merchant_id != self.shop_id:
             logging.error(f"FreeKassa webhook: merchant mismatch (got {merchant_id})")
             return web.Response(status=403, text="merchant_mismatch")
 
-        signature = _get("SIGN")
+        signature = _get("SIGN") or _get("signature")
         if not signature:
             logging.error("FreeKassa webhook: missing signature")
             return web.Response(status=400, text="missing_signature")
@@ -136,7 +241,7 @@ class FreeKassaService:
             logging.error("FreeKassa webhook: missing order_id or amount")
             return web.Response(status=400, text="missing_data")
 
-        if not self._validate_signature(order_id_str, amount_str, signature):
+        if not self._validate_signature(order_id_str, amount_str, signature, payload_dict):
             logging.error("FreeKassa webhook: invalid signature")
             return web.Response(status=403, text="invalid_signature")
 

config/settings.py

@@ -50,6 +50,8 @@ class Settings(BaseSettings):
     FREEKASSA_SECOND_SECRET: Optional[str] = None
     FREEKASSA_PAYMENT_URL: str = Field(default="https://pay.freekassa.ru/")
     FREEKASSA_CURRENCY: str = Field(default="RUB")
+    FREEKASSA_API_KEY: Optional[str] = None
+    FREEKASSA_PAYMENT_IP: Optional[str] = None
 
     YOOKASSA_ENABLED: bool = Field(default=True)
     STARS_ENABLED: bool = Field(default=True)
@@ -386,13 +388,17 @@ def get_settings() -> Settings:
                 logging.warning(
                     "CRITICAL: YooKassa credentials (SHOP_ID or SECRET_KEY) are not set. Payments will not work."
                 )
-            if _settings_instance.FREEKASSA_ENABLED and (
+            if _settings_instance.FREEKASSA_ENABLED:
+                if (
                     not _settings_instance.FREEKASSA_MERCHANT_ID
-                or not _settings_instance.FREEKASSA_FIRST_SECRET
+                    or not _settings_instance.FREEKASSA_API_KEY
-                or not _settings_instance.FREEKASSA_SECOND_SECRET
                 ):
                     logging.warning(
-                    "CRITICAL: FreeKassa is enabled but credentials are incomplete (merchant ID or secret words). FreeKassa payments will not work."
+                        "CRITICAL: FreeKassa is enabled but SHOP_ID or API key is missing. FreeKassa payments will not work."
+                    )
+                if not _settings_instance.FREEKASSA_SECOND_SECRET:
+                    logging.warning(
+                        "WARNING: FreeKassa second secret is not set. Incoming payment notifications cannot be verified."
                     )
 
         except ValidationError as e:

locales/en.json

@@ -34,6 +34,10 @@
   "pay_with_cryptopay_button": "💎 CryptoBot",
   "pay_with_tribute_button": "❤️ Tribute",
   "pay_with_stars_button": "🌟 Telegram Stars",
+  "freekassa_choose_method": "Choose how to pay with FreeKassa:",
+  "freekassa_method_qr": "📱 SBP QR (i=44)",
+  "freekassa_method_card": "💳 Bank Card (i=36)",
+  "freekassa_method_sberpay": "🏦 SberPay (i=43)",
   "connect_button": "🔗 Connect",
   "cancel_button": "❌ Cancel",
   "payment_description_subscription": "Subscription payment for {months} mo.",

locales/ru.json

@@ -34,6 +34,10 @@
   "pay_with_cryptopay_button": "💎 CryptoBot",
   "pay_with_tribute_button": "❤️ Tribute",
   "pay_with_stars_button": "🌟 Звезды Telegram",
+  "freekassa_choose_method": "Выберите способ оплаты FreeKassa:",
+  "freekassa_method_qr": "📱 QR по СБП (i=44)",
+  "freekassa_method_card": "💳 Банковская карта РФ (i=36)",
+  "freekassa_method_sberpay": "🏦 SberPay (i=43)",
   "connect_button": "🔗 Подключиться",
   "cancel_button": "❌ Отмена",
   "payment_description_subscription": "Оплата подписки на {months} мес.",