v_0.0
This commit is contained in:
raufakchurin
@@ -0,0 +1,289 @@
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import hashlib
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import logging
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from decimal import Decimal, ROUND_HALF_UP
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from typing import Optional, Dict, Any
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from urllib.parse import urlencode
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from aiohttp import web
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from aiogram import Bot
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from sqlalchemy.orm import sessionmaker
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from config.settings import Settings
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from bot.middlewares.i18n import JsonI18n
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from bot.services.subscription_service import SubscriptionService
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from bot.services.referral_service import ReferralService
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from bot.keyboards.inline.user_keyboards import get_connect_and_main_keyboard
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from bot.services.notification_service import NotificationService
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from db.dal import payment_dal, user_dal
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from bot.utils.text_sanitizer import sanitize_display_name, username_for_display
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class FreeKassaService:
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def __init__(
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self,
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*,
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bot: Bot,
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settings: Settings,
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i18n: JsonI18n,
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async_session_factory: sessionmaker,
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subscription_service: SubscriptionService,
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referral_service: ReferralService,
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):
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self.bot = bot
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self.settings = settings
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self.i18n = i18n
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self.async_session_factory = async_session_factory
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self.subscription_service = subscription_service
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self.referral_service = referral_service
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self.merchant_id: Optional[str] = settings.FREEKASSA_MERCHANT_ID
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self.first_secret: Optional[str] = settings.FREEKASSA_FIRST_SECRET
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self.second_secret: Optional[str] = settings.FREEKASSA_SECOND_SECRET
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self.payment_url: str = settings.FREEKASSA_PAYMENT_URL.rstrip("/")
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self.currency: str = settings.FREEKASSA_CURRENCY.upper() if settings.FREEKASSA_CURRENCY else "RUB"
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self.configured: bool = bool(
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settings.FREEKASSA_ENABLED
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and self.merchant_id
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and self.first_secret
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and self.second_secret
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)
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if not self.configured:
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logging.warning("FreeKassaService initialized but not fully configured. Payments disabled.")
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@staticmethod
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def _format_amount(amount: float) -> str:
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"""Format amount for signatures with two decimal places."""
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quantized = Decimal(str(amount)).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
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return f"{quantized:.2f}"
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def build_payment_link(
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self,
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*,
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payment_db_id: int,
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user_id: int,
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months: int,
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amount: float,
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extra_params: Optional[Dict[str, Any]] = None,
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) -> Optional[str]:
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if not self.configured:
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logging.error("FreeKassaService is not configured. Cannot build payment link.")
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return None
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amount_str = self._format_amount(amount)
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signature_source = f"{self.merchant_id}:{amount_str}:{self.first_secret}:{payment_db_id}"
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signature = hashlib.md5(signature_source.encode("utf-8")).hexdigest()
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params: Dict[str, Any] = {
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"m": self.merchant_id,
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"oa": amount_str,
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"o": str(payment_db_id),
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"currency": self.currency,
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"s": signature,
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"us_user_id": str(user_id),
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"us_months": str(months),
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}
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if extra_params:
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for key, value in extra_params.items():
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if value is None:
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continue
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params[f"us_{key}"] = value
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query_string = urlencode(params, doseq=False, safe=":")
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return f"{self.payment_url}?{query_string}"
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def _validate_signature(self, merchant_order_id: str, amount: str, provided_signature: str) -> bool:
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if not self.configured:
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return False
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signature_source = f"{self.merchant_id}:{amount}:{self.second_secret}:{merchant_order_id}"
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expected_signature = hashlib.md5(signature_source.encode("utf-8")).hexdigest()
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return expected_signature.lower() == provided_signature.lower()
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async def webhook_route(self, request: web.Request) -> web.Response:
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if not self.configured:
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return web.Response(status=503, text="freekassa_disabled")
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try:
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data = await request.post()
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except Exception as e:
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logging.error(f"FreeKassa webhook: failed to read POST data: {e}")
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return web.Response(status=400, text="bad_request")
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if not data:
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try:
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data = await request.json()
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except Exception:
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data = {}
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def _get(key: str, default: Optional[str] = None) -> Optional[str]:
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return data.get(key) or data.get(key.lower()) or default
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merchant_id = _get("MERCHANT_ID")
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if merchant_id != self.merchant_id:
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logging.error(f"FreeKassa webhook: merchant mismatch (got {merchant_id})")
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return web.Response(status=403, text="merchant_mismatch")
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signature = _get("SIGN")
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if not signature:
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logging.error("FreeKassa webhook: missing signature")
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return web.Response(status=400, text="missing_signature")
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order_id_str = _get("MERCHANT_ORDER_ID") or _get("ORDER_ID") or _get("o")
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amount_str = _get("AMOUNT") or _get("OA") or _get("amount")
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provider_payment_id = _get("intid") or _get("payment_id") or _get("transaction_id")
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if not order_id_str or not amount_str:
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logging.error("FreeKassa webhook: missing order_id or amount")
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return web.Response(status=400, text="missing_data")
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if not self._validate_signature(order_id_str, amount_str, signature):
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logging.error("FreeKassa webhook: invalid signature")
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return web.Response(status=403, text="invalid_signature")
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try:
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payment_db_id = int(order_id_str)
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except (TypeError, ValueError):
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logging.error(f"FreeKassa webhook: invalid order_id value '{order_id_str}'")
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return web.Response(status=400, text="invalid_order_id")
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async with self.async_session_factory() as session:
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payment = await payment_dal.get_payment_by_db_id(session, payment_db_id)
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if not payment:
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logging.error(f"FreeKassa webhook: payment {payment_db_id} not found")
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return web.Response(status=404, text="payment_not_found")
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if payment.status == "succeeded":
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logging.info(f"FreeKassa webhook: payment {payment_db_id} already succeeded")
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return web.Response(text="YES")
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# Optional amount verification
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try:
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amount_decimal = Decimal(amount_str)
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expected_amount = Decimal(str(payment.amount)).quantize(Decimal("0.01"), rounding=ROUND_HALF_UP)
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if amount_decimal.quantize(Decimal("0.01"), rounding=ROUND_HALF_UP) != expected_amount:
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logging.warning(
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f"FreeKassa webhook: amount mismatch for payment {payment_db_id} "
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f"(expected {expected_amount}, got {amount_decimal})"
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)
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except Exception as e:
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logging.warning(f"FreeKassa webhook: failed to compare amount for payment {payment_db_id}: {e}")
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activation = None
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referral_bonus = None
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try:
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await payment_dal.update_provider_payment_and_status(
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session=session,
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payment_db_id=payment.payment_id,
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provider_payment_id=str(provider_payment_id or f"freekassa:{order_id_str}"),
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new_status="succeeded",
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)
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months = payment.subscription_duration_months or 1
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activation = await self.subscription_service.activate_subscription(
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session,
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payment.user_id,
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months,
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float(payment.amount),
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payment.payment_id,
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provider="freekassa",
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)
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referral_bonus = await self.referral_service.apply_referral_bonuses_for_payment(
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session,
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payment.user_id,
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months,
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current_payment_db_id=payment.payment_id,
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skip_if_active_before_payment=False,
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)
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await session.commit()
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except Exception as e:
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await session.rollback()
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logging.error(f"FreeKassa webhook: failed to process payment {payment_db_id}: {e}", exc_info=True)
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return web.Response(status=500, text="processing_error")
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db_user = payment.user or await user_dal.get_user_by_id(session, payment.user_id)
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lang = db_user.language_code if db_user and db_user.language_code else self.settings.DEFAULT_LANGUAGE
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_ = lambda k, **kw: self.i18n.gettext(lang, k, **kw) if self.i18n else k
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config_link = None
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final_end = None
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months = payment.subscription_duration_months or 1
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if activation:
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config_link = activation.get("subscription_url")
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final_end = activation.get("end_date")
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applied_days = 0
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if referral_bonus and referral_bonus.get("referee_new_end_date"):
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final_end = referral_bonus["referee_new_end_date"]
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applied_days = referral_bonus.get("referee_bonus_applied_days", 0)
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if not final_end and activation and activation.get("end_date"):
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final_end = activation["end_date"]
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if not config_link:
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config_link = _("config_link_not_available")
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if final_end:
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end_date_str = final_end.strftime("%Y-%m-%d")
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else:
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end_date_str = _("config_link_not_available")
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if applied_days:
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inviter_name_display = _("friend_placeholder")
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if db_user and db_user.referred_by_id:
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inviter = await user_dal.get_user_by_id(session, db_user.referred_by_id)
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if inviter:
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safe_name = sanitize_display_name(inviter.first_name) if inviter.first_name else None
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if safe_name:
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inviter_name_display = safe_name
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elif inviter.username:
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inviter_name_display = username_for_display(inviter.username, with_at=False)
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text = _(
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"payment_successful_with_referral_bonus_full",
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months=months,
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base_end_date=activation["end_date"].strftime("%Y-%m-%d") if activation and activation.get("end_date") else end_date_str,
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bonus_days=applied_days,
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final_end_date=end_date_str,
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inviter_name=inviter_name_display,
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config_link=config_link,
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)
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else:
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text = _(
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"payment_successful_full",
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months=months,
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end_date=end_date_str,
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config_link=config_link,
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)
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markup = get_connect_and_main_keyboard(lang, self.i18n, self.settings, config_link)
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try:
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await self.bot.send_message(
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payment.user_id,
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text,
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reply_markup=markup,
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parse_mode="HTML",
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disable_web_page_preview=True,
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)
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except Exception as e:
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logging.error(f"FreeKassa notification: failed to send message to user {payment.user_id}: {e}")
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try:
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notification_service = NotificationService(self.bot, self.settings, self.i18n)
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await notification_service.notify_payment_received(
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user_id=payment.user_id,
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amount=float(payment.amount),
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currency=self.currency or self.settings.DEFAULT_CURRENCY_SYMBOL,
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months=months,
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payment_provider="freekassa",
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username=db_user.username if db_user else None,
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)
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except Exception as e:
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logging.error(f"FreeKassa notification: failed to notify admins: {e}")
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return web.Response(text="YES")
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async def freekassa_webhook_route(request: web.Request) -> web.Response:
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service: FreeKassaService = request.app["freekassa_service"]
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return await service.webhook_route(request)
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@@ -158,6 +158,7 @@ class NotificationService:
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provider_emoji = {
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"yookassa": "💳",
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"freekassa": "💳",
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"cryptopay": "₿",
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"stars": "⭐",
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"tribute": "💎"
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