450 lines
17 KiB
Python
450 lines
17 KiB
Python
import base64
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import json
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import logging
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from datetime import datetime, timedelta, timezone
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from typing import Any, Dict, Optional, Tuple
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from aiogram import Bot, F, Router, types
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from aiohttp import web
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from cryptography.exceptions import InvalidSignature
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from cryptography.hazmat.primitives import hashes, serialization
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from cryptography.hazmat.primitives.asymmetric import padding
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from sqlalchemy.ext.asyncio import AsyncSession
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from sqlalchemy.orm import sessionmaker
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from bot.middlewares.i18n import JsonI18n
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from bot.services.referral_service import ReferralService
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from bot.services.subscription_service import SubscriptionService
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from bot.utils.request_security import ip_in_allowlist, request_client_ip
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from config.settings import Settings
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from db.dal import payment_dal
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from .base import PaymentProviderSpec, ServiceFactoryContext, WebAppPaymentContext
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from .shared import (
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HttpClientMixin,
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PaymentSuccessRequest,
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build_payment_record_payload,
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create_webapp_payment_record,
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decimal_amounts_equal,
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describe_payment,
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finalize_successful_payment,
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finalize_webapp_link_payment,
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first_value,
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format_decimal_amount,
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lookup_payment_by_order_or_provider_id,
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make_translator,
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notify_callback_parse_error,
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notify_payment_record_failure,
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notify_service_unavailable,
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notify_user_payment_failed,
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parse_payment_callback,
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payment_failed,
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payment_unavailable,
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post_json_request,
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render_link_or_fail,
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)
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router = Router(name="user_subscription_payments_wata_router")
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_LOG = "wata"
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class WataService(HttpClientMixin):
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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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default_return_url: str,
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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.base_url = (settings.WATA_BASE_URL or "https://api.wata.pro/api/h2h").rstrip("/")
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self.api_token = settings.WATA_API_TOKEN or ""
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self.return_url = settings.WATA_RETURN_URL or f"https://t.me/{default_return_url}"
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self.failed_url = settings.WATA_FAILED_URL or self.return_url
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self.payment_link_ttl_days = settings.WATA_PAYMENT_LINK_TTL_DAYS
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self.verify_webhook_signature = settings.WATA_WEBHOOK_VERIFY_SIGNATURE
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self._public_key_pem = settings.WATA_PUBLIC_KEY
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self._init_http_client(total_timeout=20)
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self.configured: bool = bool(settings.WATA_ENABLED and self.api_token)
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if not self.configured:
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logging.warning("WataService initialized but not fully configured. Payments disabled.")
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def _auth_headers(self) -> Dict[str, str]:
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return {
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"Authorization": f"Bearer {self.api_token}",
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"Content-Type": "application/json",
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}
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async def create_payment_link(
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self,
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*,
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payment_db_id: int,
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amount: float,
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currency: Optional[str],
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description: str,
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) -> Tuple[bool, Dict[str, Any]]:
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if not self.configured:
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logging.error("WataService is not configured. Cannot create payment link.")
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return False, {"message": "service_not_configured"}
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session = await self._get_session()
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expires_at = datetime.now(timezone.utc) + timedelta(days=self.payment_link_ttl_days)
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body: Dict[str, Any] = {
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"amount": float(format_decimal_amount(amount)),
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"currency": (currency or self.settings.DEFAULT_CURRENCY_SYMBOL or "RUB").upper(),
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"description": description,
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"orderId": str(payment_db_id),
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"successRedirectUrl": self.return_url,
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"failRedirectUrl": self.failed_url,
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"expirationDateTime": expires_at.isoformat().replace("+00:00", "Z"),
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}
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return await post_json_request(
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session,
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f"{self.base_url}/links",
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body=body,
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headers=self._auth_headers(),
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log_prefix="Wata create_payment_link",
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)
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async def _get_public_key_pem(self) -> Optional[str]:
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if self._public_key_pem:
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return self._public_key_pem.replace("\\n", "\n")
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session = await self._get_session()
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try:
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async with session.get(f"{self.base_url}/public-key") as response:
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if response.status != 200:
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logging.error("Wata public key request failed with status %s", response.status)
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return None
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data = await response.json()
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value = data.get("value") if isinstance(data, dict) else None
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if isinstance(value, str) and value.strip():
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self._public_key_pem = value
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return value.replace("\\n", "\n")
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except Exception:
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logging.exception("Wata public key request failed.")
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return None
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async def _verify_signature(self, raw_body: bytes, signature_header: str) -> bool:
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if not signature_header:
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return False
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public_key_pem = await self._get_public_key_pem()
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if not public_key_pem:
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return False
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try:
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public_key = serialization.load_pem_public_key(public_key_pem.encode("utf-8"))
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signature = base64.b64decode(signature_header)
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public_key.verify(signature, raw_body, padding.PKCS1v15(), hashes.SHA512())
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return True
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except (InvalidSignature, ValueError, TypeError):
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logging.warning("Wata webhook: invalid signature.")
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return False
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except Exception:
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logging.exception("Wata webhook: signature verification failed.")
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return False
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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="wata_disabled")
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client_ip = request_client_ip(request, trusted_proxies=self.settings.trusted_proxies)
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if self.settings.wata_trusted_ips and not ip_in_allowlist(
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client_ip, self.settings.wata_trusted_ips
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):
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logging.warning("Wata webhook denied from unauthorized IP source.")
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return web.Response(status=403, text="forbidden")
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raw_body = await request.read()
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if self.verify_webhook_signature:
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signature = request.headers.get("X-Signature", "")
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if not await self._verify_signature(raw_body, signature):
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return web.Response(status=403, text="invalid_signature")
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try:
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payload = json.loads(raw_body.decode("utf-8"))
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except Exception:
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logging.exception("Wata webhook: failed to parse JSON.")
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return web.Response(status=400, text="bad_request")
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transaction_id = str(payload.get("transactionId") or "").strip()
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status = str(payload.get("transactionStatus") or "").strip().lower()
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order_id_raw = payload.get("orderId")
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amount_raw = payload.get("amount")
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currency = payload.get("currency") or self.settings.DEFAULT_CURRENCY_SYMBOL or "RUB"
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if not status or not (transaction_id or order_id_raw):
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logging.error("Wata webhook: missing transaction status or ids: %s", payload)
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return web.Response(status=400, text="missing_fields")
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async with self.async_session_factory() as session:
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payment = await lookup_payment_by_order_or_provider_id(
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session,
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order_id_raw=order_id_raw,
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provider_payment_id=transaction_id or None,
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)
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if not payment:
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logging.error(
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"Wata webhook: payment not found (order_id=%s, transaction_id=%s)",
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order_id_raw,
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transaction_id,
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)
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return web.Response(status=404, text="payment_not_found")
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if payment.status == "succeeded" and status == "paid":
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return web.Response(text="ok")
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resolved_transaction_id = transaction_id or str(payment.payment_id)
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if status == "paid":
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if amount_raw is not None:
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try:
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if not decimal_amounts_equal(amount_raw, payment.amount):
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logging.warning(
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"Wata webhook: amount mismatch for payment %s "
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"(expected %s, got %s)",
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payment.payment_id,
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format_decimal_amount(payment.amount),
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format_decimal_amount(amount_raw),
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)
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except Exception as exc:
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logging.warning(
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"Wata webhook: failed to compare amounts for %s: %s",
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payment.payment_id,
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exc,
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)
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try:
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await payment_dal.update_provider_payment_and_status(
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session,
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payment.payment_id,
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resolved_transaction_id,
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"succeeded",
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)
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await session.commit()
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except Exception:
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await session.rollback()
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logging.exception(
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"Wata webhook: failed to mark payment %s as succeeded.",
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resolved_transaction_id,
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)
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return web.Response(status=500, text="processing_error")
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payment_units = payment.purchased_gb or payment.subscription_duration_months or 1
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sale_mode = payment.sale_mode or (
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"traffic" if self.settings.traffic_sale_mode else "subscription"
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)
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outcome = await finalize_successful_payment(
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PaymentSuccessRequest(
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bot=self.bot,
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settings=self.settings,
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i18n=self.i18n,
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session=session,
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subscription_service=self.subscription_service,
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referral_service=self.referral_service,
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payment=payment,
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user_id=payment.user_id,
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amount=float(payment.amount),
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currency=str(currency),
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sale_mode=sale_mode,
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months=payment_units,
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traffic_amount=float(payment_units),
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provider_subscription="wata",
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provider_notification="wata",
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db_user=payment.user,
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log_prefix="Wata webhook",
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)
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)
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if outcome is None:
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return web.Response(status=500, text="processing_error")
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return web.Response(text="ok")
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if status == "declined":
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try:
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await payment_dal.update_provider_payment_and_status(
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session,
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payment.payment_id,
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resolved_transaction_id,
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"failed",
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)
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await session.commit()
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except Exception:
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await session.rollback()
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logging.exception(
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"Wata webhook: failed to mark payment %s as failed.",
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resolved_transaction_id,
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)
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return web.Response(status=500, text="processing_error")
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await notify_user_payment_failed(
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bot=self.bot,
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settings=self.settings,
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i18n=self.i18n,
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session=session,
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payment=payment,
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)
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return web.Response(text="ok")
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logging.warning(
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"Wata webhook: unhandled status '%s' for transaction %s",
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status,
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transaction_id,
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)
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return web.Response(status=202, text="status_ignored")
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@router.callback_query(F.data.startswith("pay_wata:"))
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async def pay_wata_callback_handler(
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callback: types.CallbackQuery,
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settings: Settings,
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i18n_data: dict,
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wata_service: WataService,
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session: AsyncSession,
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):
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current_lang = i18n_data.get("current_language", settings.DEFAULT_LANGUAGE)
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i18n: Optional[JsonI18n] = i18n_data.get("i18n_instance")
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translator = make_translator(i18n, current_lang)
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if not i18n or not callback.message:
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await notify_callback_parse_error(callback, translator)
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return
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if not wata_service or not wata_service.configured:
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logging.error("Wata service is not configured or unavailable.")
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await notify_service_unavailable(callback, translator)
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return
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parts = parse_payment_callback(callback.data or "")
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if not parts:
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logging.error("Invalid pay_wata data in callback: %s", callback.data)
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await notify_callback_parse_error(callback, translator)
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return
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currency_code = settings.DEFAULT_CURRENCY_SYMBOL or "RUB"
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payment_description = describe_payment(translator, parts)
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record_payload = build_payment_record_payload(
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user_id=callback.from_user.id,
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amount=parts.price,
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currency=currency_code,
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status="pending_wata",
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description=payment_description,
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months=parts.months,
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provider="wata",
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sale_mode=parts.sale_mode,
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)
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try:
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payment_record = await payment_dal.create_payment_record(session, record_payload)
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await session.commit()
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except Exception:
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await session.rollback()
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logging.exception(
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"Wata: failed to create payment record for user %s.", callback.from_user.id
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)
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await notify_payment_record_failure(callback, translator)
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return
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success, response_data = await wata_service.create_payment_link(
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payment_db_id=payment_record.payment_id,
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amount=parts.price,
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currency=currency_code,
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description=payment_description,
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)
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await render_link_or_fail(
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callback,
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translator=translator,
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current_lang=current_lang,
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i18n=i18n,
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parts=parts,
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session=session,
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payment=payment_record,
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api_success=success,
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payment_url=first_value(response_data, "url"),
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provider_payment_id=first_value(response_data, "id"),
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log_prefix=_LOG,
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)
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async def create_webapp_payment(ctx: WebAppPaymentContext) -> web.Response:
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settings: Settings = ctx.request.app["settings"]
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service: WataService = ctx.request.app["wata_service"]
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if not service or not service.configured:
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return payment_unavailable()
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currency = settings.DEFAULT_CURRENCY_SYMBOL or "RUB"
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try:
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payment = await create_webapp_payment_record(
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ctx,
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amount=ctx.price,
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currency=currency,
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status="pending_wata",
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provider="wata",
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)
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success, response_data = await service.create_payment_link(
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payment_db_id=payment.payment_id,
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amount=ctx.price,
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currency=currency,
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description=ctx.description,
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)
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except Exception:
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await ctx.session.rollback()
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logging.exception("Wata WebApp payment failed")
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return payment_failed()
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return await finalize_webapp_link_payment(
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session=ctx.session,
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payment=payment,
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api_success=success,
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payment_url=first_value(response_data, "url") if success else None,
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provider_payment_id=first_value(response_data, "id"),
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log_prefix="Wata",
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)
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async def wata_webhook_route(request: web.Request) -> web.Response:
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service: WataService = request.app["wata_service"]
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return await service.webhook_route(request)
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|
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def create_service(ctx: ServiceFactoryContext) -> WataService:
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return WataService(
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bot=ctx.bot,
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settings=ctx.settings,
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i18n=ctx.i18n,
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async_session_factory=ctx.async_session_factory,
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subscription_service=ctx.subscription_service,
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referral_service=ctx.referral_service,
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default_return_url=ctx.bot_username_for_default_return,
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)
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SPEC = PaymentProviderSpec(
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id="wata",
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provider_key="wata",
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label="Wata",
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webapp_label="Wata",
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webapp_labels={"ru": "Wata", "en": "Wata"},
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webapp_icon="WalletCards",
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telegram_labels={"ru": "Wata", "en": "Wata"},
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telegram_emoji="💳",
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pending_status="pending_wata",
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enabled=lambda settings: settings.WATA_ENABLED,
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service_key="wata_service",
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callback_prefix="pay_wata",
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router=router,
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create_service=create_service,
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webhook_path=lambda settings: settings.wata_webhook_path,
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webhook_route=wata_webhook_route,
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create_webapp_payment=create_webapp_payment,
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)
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