Protect deliveries to blocked Telegram users

src/core/activity_service.py

@@ -57,7 +57,6 @@ class ActivityService:
                 .where(
                     and_(
                         BlockedUser.telegram_id == telegram_id,
-                        BlockedUser.error_type == 'inactive',
                         BlockedUser.is_active == True,
                     )
                 )

src/core/broadcast_services.py

@@ -8,7 +8,6 @@ from typing import Optional, List, Dict, Tuple, Any
 from datetime import datetime, timezone
 from aiogram import Bot
 from aiogram.types import Message
-from aiogram.exceptions import TelegramBadRequest, TelegramForbiddenError, TelegramRetryAfter
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
 import redis.asyncio as redis
@@ -16,6 +15,7 @@ import redis.asyncio as redis
 from .models import User, BlockedUser, BroadcastLog, BroadcastChannel
 from .config import REDIS_URL, ADMIN_IDS
 from .database import async_session_maker
+from .delivery import delivery_service
 
 logger = logging.getLogger(__name__)
 
@@ -132,29 +132,9 @@ class BroadcastService:
             error_type: Тип ошибки
             error_message: Сообщение об ошибке
         """
-        # Проверяем, есть ли уже запись
+        await delivery_service.mark_user_blocked(
-        stmt = select(BlockedUser).where(BlockedUser.telegram_id == telegram_id)
+            session, telegram_id, error_type, error_message
-        result = await session.execute(stmt)
+        )
-        blocked_user = result.scalar_one_or_none()
-        
-        if blocked_user:
-            # Обновляем существующую запись
-            blocked_user.error_type = error_type
-            blocked_user.error_message = error_message
-            blocked_user.last_attempt_at = datetime.now(timezone.utc)
-            blocked_user.attempt_count += 1
-            blocked_user.is_active = True
-        else:
-            # Создаем новую запись
-            blocked_user = BlockedUser(
-                telegram_id=telegram_id,
-                error_type=error_type,
-                error_message=error_message
-            )
-            session.add(blocked_user)
-            
-        await session.commit()
-        logger.info(f"Пользователь {telegram_id} отмечен как заблокированный: {error_type}")
         
     async def unblock_user(self, session: AsyncSession, telegram_id: int):
         """
@@ -164,17 +144,7 @@ class BroadcastService:
             session: Сессия БД
             telegram_id: Telegram ID пользователя
         """
-        stmt = select(BlockedUser).where(
+        await delivery_service.unblock_user(session, telegram_id)
-            BlockedUser.telegram_id == telegram_id,
-            BlockedUser.is_active == True
-        )
-        result = await session.execute(stmt)
-        blocked_user = result.scalar_one_or_none()
-        
-        if blocked_user:
-            blocked_user.is_active = False
-            await session.commit()
-            logger.info(f"Пользователь {telegram_id} разблокирован")
             
     async def send_message_to_user(
         self, 
@@ -195,94 +165,43 @@ class BroadcastService:
         Returns:
             Tuple[bool, Optional[str]]: (успех, тип_ошибки)
         """
-        try:
+        if message.text:
-            # Проверяем, не заблокирован ли пользователь
+            send_call = lambda: bot.send_message(
-            if not skip_block_check:
-                async with async_session_maker() as session:
-                    is_blocked = await self.check_user_blocked(session, user.telegram_id)
-                    if is_blocked:
-                        logger.debug(f"Пропускаем заблокированного пользователя {user.telegram_id}")
-                        return False, "blocked"
-            
-            # Отправляем сообщение
-            if message.text:
-                await bot.send_message(
                     user.telegram_id,
                     message.text,
                     parse_mode="Markdown"
                 )
-            elif message.photo:
+        elif message.photo:
-                await bot.send_photo(
+            send_call = lambda: bot.send_photo(
                     user.telegram_id,
                     photo=message.photo[-1].file_id,
                     caption=message.caption,
                     parse_mode="Markdown"
                 )
-            elif message.video:
+        elif message.video:
-                await bot.send_video(
+            send_call = lambda: bot.send_video(
                     user.telegram_id,
                     video=message.video.file_id,
                     caption=message.caption,
                     parse_mode="Markdown"
                 )
-            elif message.document:
+        elif message.document:
-                await bot.send_document(
+            send_call = lambda: bot.send_document(
                     user.telegram_id,
                     document=message.document.file_id,
                     caption=message.caption,
                     parse_mode="Markdown"
                 )
-            else:
+        else:
-                # Копируем сообщение как есть
+            send_call = lambda: message.copy_to(user.telegram_id)
-                await message.copy_to(user.telegram_id)
 
-            # Если успешно - разблокируем пользователя (на случай если он был заблокирован ранее)
+        result = await delivery_service.send_with_guard(
-            async with async_session_maker() as session:
+            user.telegram_id,
-                await self.unblock_user(session, user.telegram_id)
+            send_call,
-                
+            retry=retry,
-            return True, None
+            skip_block_check=skip_block_check,
-            
+        )
-        except TelegramForbiddenError as e:
+        return result.success, None if result.success else result.status
-            # Пользователь заблокировал бота
-            error_type = "blocked_bot"
-            async with async_session_maker() as session:
-                await self.mark_user_blocked(session, user.telegram_id, error_type, str(e))
-            return False, error_type
-            
-        except TelegramBadRequest as e:
-            # Пользователь удален или деактивирован
-            error_str = str(e).lower()
-            if "user is deactivated" in error_str:
-                error_type = "deactivated"
-            elif "user not found" in error_str:
-                error_type = "not_found"
-            elif "chat not found" in error_str:
-                error_type = "chat_not_found"
-            else:
-                error_type = "bad_request"
-                
-            async with async_session_maker() as session:
-                await self.mark_user_blocked(session, user.telegram_id, error_type, str(e))
-            return False, error_type
-            
-        except TelegramRetryAfter as e:
-            # FloodWait - слишком много запросов
-            if retry and e.retry_after <= self.MAX_RETRY_AFTER:
-                logger.warning(f"FloodWait для пользователя {user.telegram_id}: ждем {e.retry_after} сек")
-                await asyncio.sleep(e.retry_after + self.RETRY_AFTER_DELAY)
-                return await self.send_message_to_user(
-                    bot, user, message, retry=False, skip_block_check=True
-                )
-
-            logger.warning(
-                f"Пропускаем пользователя {user.telegram_id}: FloodWait {e.retry_after} сек"
-            )
-            return False, "retry_after"
-            
-        except Exception as e:
-            # Другие ошибки
-            logger.error(f"Ошибка отправки пользователю {user.telegram_id}: {e}")
-            return False, "unknown_error"
             
     async def broadcast_to_users(
         self,

src/core/delivery.py

@@ -0,0 +1,185 @@
+"""
+Safe Telegram delivery helpers.
+
+The bot sends messages from several places: broadcasts, winner notifications,
+P2P chat, and chat forwarding. This module keeps the "user blocked the bot"
+handling in one place so every outbound path behaves consistently.
+"""
+import asyncio
+import logging
+from dataclasses import dataclass
+from datetime import datetime, timezone
+from typing import Any, Awaitable, Callable, Optional
+
+from aiogram.exceptions import TelegramBadRequest, TelegramForbiddenError, TelegramRetryAfter
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from .database import async_session_maker
+from .models import BlockedUser
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass(slots=True)
+class DeliveryResult:
+    success: bool
+    status: Optional[str] = None
+    telegram_message: Any = None
+    skipped: bool = False
+
+
+class DeliveryService:
+    """Guarded Telegram delivery with persistent blocked-user tracking."""
+
+    RETRY_AFTER_DELAY = 5.0
+    MAX_RETRY_AFTER = 30
+
+    _BAD_REQUEST_ERROR_TYPES = {
+        "user is deactivated": "deactivated",
+        "user not found": "not_found",
+        "chat not found": "chat_not_found",
+        "bot was blocked by the user": "blocked_bot",
+        "forbidden": "blocked_bot",
+    }
+
+    async def check_user_blocked(
+        self,
+        session: AsyncSession,
+        telegram_id: int,
+    ) -> Optional[BlockedUser]:
+        result = await session.execute(
+            select(BlockedUser).where(
+                BlockedUser.telegram_id == telegram_id,
+                BlockedUser.is_active == True,
+            )
+        )
+        return result.scalar_one_or_none()
+
+    async def mark_user_blocked(
+        self,
+        session: AsyncSession,
+        telegram_id: int,
+        error_type: str,
+        error_message: str,
+    ) -> None:
+        now = datetime.now(timezone.utc)
+        result = await session.execute(
+            select(BlockedUser).where(BlockedUser.telegram_id == telegram_id)
+        )
+        blocked_user = result.scalar_one_or_none()
+
+        if blocked_user:
+            blocked_user.error_type = error_type
+            blocked_user.error_message = error_message
+            blocked_user.last_attempt_at = now
+            blocked_user.attempt_count = (blocked_user.attempt_count or 0) + 1
+            blocked_user.is_active = True
+        else:
+            session.add(
+                BlockedUser(
+                    telegram_id=telegram_id,
+                    error_type=error_type,
+                    error_message=error_message,
+                    first_blocked_at=now,
+                    last_attempt_at=now,
+                    attempt_count=1,
+                    is_active=True,
+                )
+            )
+
+        await session.commit()
+        logger.info("User %s marked as unavailable: %s", telegram_id, error_type)
+
+    async def unblock_user(self, session: AsyncSession, telegram_id: int) -> bool:
+        blocked_user = await self.check_user_blocked(session, telegram_id)
+        if not blocked_user:
+            return False
+
+        blocked_user.is_active = False
+        blocked_user.last_attempt_at = datetime.now(timezone.utc)
+        await session.commit()
+        logger.info("User %s delivery reactivated", telegram_id)
+        return True
+
+    async def send_with_guard(
+        self,
+        telegram_id: int,
+        send_call: Callable[[], Awaitable[Any]],
+        *,
+        retry: bool = True,
+        skip_block_check: bool = False,
+    ) -> DeliveryResult:
+        """
+        Execute a Telegram send call unless the recipient is known unavailable.
+
+        Args:
+            telegram_id: recipient Telegram ID.
+            send_call: zero-argument async callable that performs the actual
+                aiogram send/copy operation and returns Telegram Message.
+            retry: retry once after TelegramRetryAfter when the delay is small.
+            skip_block_check: caller already filtered blocked users.
+        """
+        if not skip_block_check:
+            async with async_session_maker() as session:
+                blocked_user = await self.check_user_blocked(session, telegram_id)
+                if blocked_user:
+                    return DeliveryResult(
+                        success=False,
+                        status=blocked_user.error_type,
+                        skipped=True,
+                    )
+
+        try:
+            telegram_message = await send_call()
+        except TelegramForbiddenError as exc:
+            await self._mark_unavailable(telegram_id, "blocked_bot", str(exc))
+            return DeliveryResult(success=False, status="blocked_bot")
+        except TelegramBadRequest as exc:
+            error_type = self.classify_bad_request(exc)
+            if error_type:
+                await self._mark_unavailable(telegram_id, error_type, str(exc))
+                return DeliveryResult(success=False, status=error_type)
+
+            logger.warning("Telegram bad request for %s: %s", telegram_id, exc)
+            return DeliveryResult(success=False, status="bad_request")
+        except TelegramRetryAfter as exc:
+            if retry and exc.retry_after <= self.MAX_RETRY_AFTER:
+                logger.warning("FloodWait for %s: %s sec", telegram_id, exc.retry_after)
+                await asyncio.sleep(exc.retry_after + self.RETRY_AFTER_DELAY)
+                return await self.send_with_guard(
+                    telegram_id,
+                    send_call,
+                    retry=False,
+                    skip_block_check=True,
+                )
+
+            logger.warning("Skipping %s after FloodWait %s sec", telegram_id, exc.retry_after)
+            return DeliveryResult(success=False, status="retry_after")
+        except Exception as exc:
+            logger.error("Telegram delivery error for %s: %s", telegram_id, exc)
+            return DeliveryResult(success=False, status="unknown_error")
+
+        async with async_session_maker() as session:
+            await self.unblock_user(session, telegram_id)
+
+        return DeliveryResult(success=True, telegram_message=telegram_message)
+
+    def classify_bad_request(self, exc: TelegramBadRequest) -> Optional[str]:
+        error_text = str(exc).lower()
+        for marker, error_type in self._BAD_REQUEST_ERROR_TYPES.items():
+            if marker in error_text:
+                return error_type
+        return None
+
+    async def _mark_unavailable(
+        self,
+        telegram_id: int,
+        error_type: str,
+        error_message: str,
+    ) -> None:
+        async with async_session_maker() as session:
+            await self.mark_user_blocked(session, telegram_id, error_type, error_message)
+
+
+delivery_service = DeliveryService()

src/handlers/chat_handlers.py

@@ -2,7 +2,6 @@
 import logging
 from aiogram import Router, F
 from aiogram.types import Message, CallbackQuery, InlineKeyboardMarkup, InlineKeyboardButton
-from aiogram.exceptions import TelegramRetryAfter
 from aiogram.fsm.context import FSMContext
 from aiogram.fsm.state import State, StatesGroup
 from aiogram.filters import StateFilter, Command
@@ -23,10 +22,10 @@ from src.core.chat_services import (
 from src.core.services import UserService
 from src.core.database import async_session_maker
 from src.core.config import ADMIN_IDS
+from src.core.delivery import delivery_service
 from src.utils.account_utils import parse_accounts_from_message
 
 logger = logging.getLogger(__name__)
-MAX_RETRY_AFTER_SECONDS = 30
 
 
 class ChatStates(StatesGroup):
@@ -488,19 +487,20 @@ async def _send_message_to_user(message: Message, user_telegram_id: int, retry:
     Отправить сообщение конкретному пользователю.
     Возвращает message_id при успехе или None при ошибке.
     """
-    try:
+    result = await delivery_service.send_with_guard(
-        sent_msg = await message.copy_to(user_telegram_id)
+        user_telegram_id,
-        return sent_msg.message_id
+        lambda: message.copy_to(user_telegram_id),
-    except TelegramRetryAfter as e:
+        retry=retry,
-        if retry and e.retry_after <= MAX_RETRY_AFTER_SECONDS:
+    )
-            logger.warning(f"FloodWait при отправке {user_telegram_id}: {e.retry_after}с")
+    if result.success:
-            await asyncio.sleep(e.retry_after + 1)
+        return result.telegram_message.message_id
-            return await _send_message_to_user(message, user_telegram_id, retry=False)
+
-        logger.warning(f"Пропускаем отправку {user_telegram_id}: FloodWait {e.retry_after}с")
+    logger.warning(
-        return None
+        "Не удалось отправить сообщение %s: %s",
-    except Exception as e:
+        user_telegram_id,
-        logger.warning(f"Не удалось отправить сообщение {user_telegram_id}: {e}")
+        result.status,
-        return None
+    )
+    return None
 
 
 async def _send_message_to_user_with_sender(
@@ -513,87 +513,79 @@ async def _send_message_to_user_with_sender(
     Отправить сообщение обычному пользователю с информацией об отправителе.
     Возвращает message_id при успехе или None при ошибке.
     """
-    try:
+    # Формируем текст с информацией об отправителе
-        # Формируем текст с информацией об отправителе
+    header = f"📨 <b>{sender_info}:</b>\n\n"
-        header = f"📨 <b>{sender_info}:</b>\n\n"
 
+    async def send_message():
         if message.text:
-            # Текстовое сообщение
+            return await message.bot.send_message(
-            sent_msg = await message.bot.send_message(
                 user_telegram_id,
                 header + message.text,
                 parse_mode="HTML"
             )
         elif message.photo:
-            # Фото
             caption = header + (message.caption or "")
-            sent_msg = await message.bot.send_photo(
+            return await message.bot.send_photo(
                 user_telegram_id,
                 photo=message.photo[-1].file_id,
                 caption=caption,
                 parse_mode="HTML"
             )
         elif message.video:
-            # Видео
             caption = header + (message.caption or "")
-            sent_msg = await message.bot.send_video(
+            return await message.bot.send_video(
                 user_telegram_id,
                 video=message.video.file_id,
                 caption=caption,
                 parse_mode="HTML"
             )
         elif message.document:
-            # Документ
             caption = header + (message.caption or "")
-            sent_msg = await message.bot.send_document(
+            return await message.bot.send_document(
                 user_telegram_id,
                 document=message.document.file_id,
                 caption=caption,
                 parse_mode="HTML"
             )
         elif message.animation:
-            # GIF
             caption = header + (message.caption or "")
-            sent_msg = await message.bot.send_animation(
+            return await message.bot.send_animation(
                 user_telegram_id,
                 animation=message.animation.file_id,
                 caption=caption,
                 parse_mode="HTML"
             )
         elif message.sticker:
-            # Стикер - сначала отправляем заголовок, потом стикер
             await message.bot.send_message(user_telegram_id, header, parse_mode="HTML")
-            sent_msg = await message.bot.send_sticker(user_telegram_id, sticker=message.sticker.file_id)
+            return await message.bot.send_sticker(user_telegram_id, sticker=message.sticker.file_id)
         elif message.voice:
-            # Голосовое сообщение
+            return await message.bot.send_voice(
-            sent_msg = await message.bot.send_voice(
                 user_telegram_id,
                 voice=message.voice.file_id,
                 caption=header,
                 parse_mode="HTML"
             )
         elif message.video_note:
-            # Видео-кружок
             await message.bot.send_message(user_telegram_id, header, parse_mode="HTML")
-            sent_msg = await message.bot.send_video_note(user_telegram_id, video_note=message.video_note.file_id)
+            return await message.bot.send_video_note(user_telegram_id, video_note=message.video_note.file_id)
-        else:
-            # Неизвестный тип - просто копируем
-            await message.bot.send_message(user_telegram_id, header, parse_mode="HTML")
-            sent_msg = await message.copy_to(user_telegram_id)
 
-        return sent_msg.message_id
+        await message.bot.send_message(user_telegram_id, header, parse_mode="HTML")
-    except TelegramRetryAfter as e:
+        return await message.copy_to(user_telegram_id)
-        if retry and e.retry_after <= MAX_RETRY_AFTER_SECONDS:
+
-            logger.warning(f"FloodWait при отправке {user_telegram_id}: {e.retry_after}с")
+    result = await delivery_service.send_with_guard(
-            await asyncio.sleep(e.retry_after + 1)
+        user_telegram_id,
-            return await _send_message_to_user_with_sender(
+        send_message,
-                message, user_telegram_id, sender_info, retry=False
+        retry=retry,
-            )
+    )
-        logger.warning(f"Пропускаем отправку {user_telegram_id}: FloodWait {e.retry_after}с")
+    if result.success:
-        return None
+        return result.telegram_message.message_id
-    except Exception as e:
+
-        logger.warning(f"Не удалось отправить сообщение {user_telegram_id}: {e}")
+    logger.warning(
-        return None
+        "Не удалось отправить сообщение %s: %s",
+        user_telegram_id,
+        result.status,
+    )
+    return None
 
 
 async def _send_message_to_admin_with_sender(
@@ -606,87 +598,79 @@ async def _send_message_to_admin_with_sender(
     Отправить сообщение админу с информацией об отправителе.
     Возвращает message_id при успехе или None при ошибке.
     """
-    try:
+    # Формируем текст с информацией об отправителе
-        # Формируем текст с информацией об отправителе
+    header = f"📨 <b>Сообщение от {sender_info}:</b>\n\n"
-        header = f"📨 <b>Сообщение от {sender_info}:</b>\n\n"
 
+    async def send_message():
         if message.text:
-            # Текстовое сообщение
+            return await message.bot.send_message(
-            sent_msg = await message.bot.send_message(
                 admin_telegram_id,
                 header + message.text,
                 parse_mode="HTML"
             )
         elif message.photo:
-            # Фото
             caption = header + (message.caption or "")
-            sent_msg = await message.bot.send_photo(
+            return await message.bot.send_photo(
                 admin_telegram_id,
                 photo=message.photo[-1].file_id,
                 caption=caption,
                 parse_mode="HTML"
             )
         elif message.video:
-            # Видео
             caption = header + (message.caption or "")
-            sent_msg = await message.bot.send_video(
+            return await message.bot.send_video(
                 admin_telegram_id,
                 video=message.video.file_id,
                 caption=caption,
                 parse_mode="HTML"
             )
         elif message.document:
-            # Документ
             caption = header + (message.caption or "")
-            sent_msg = await message.bot.send_document(
+            return await message.bot.send_document(
                 admin_telegram_id,
                 document=message.document.file_id,
                 caption=caption,
                 parse_mode="HTML"
             )
         elif message.animation:
-            # GIF
             caption = header + (message.caption or "")
-            sent_msg = await message.bot.send_animation(
+            return await message.bot.send_animation(
                 admin_telegram_id,
                 animation=message.animation.file_id,
                 caption=caption,
                 parse_mode="HTML"
             )
         elif message.sticker:
-            # Стикер - сначала отправляем заголовок, потом стикер
             await message.bot.send_message(admin_telegram_id, header, parse_mode="HTML")
-            sent_msg = await message.bot.send_sticker(admin_telegram_id, sticker=message.sticker.file_id)
+            return await message.bot.send_sticker(admin_telegram_id, sticker=message.sticker.file_id)
         elif message.voice:
-            # Голосовое сообщение
+            return await message.bot.send_voice(
-            sent_msg = await message.bot.send_voice(
                 admin_telegram_id,
                 voice=message.voice.file_id,
                 caption=header,
                 parse_mode="HTML"
             )
         elif message.video_note:
-            # Видео-кружок
             await message.bot.send_message(admin_telegram_id, header, parse_mode="HTML")
-            sent_msg = await message.bot.send_video_note(admin_telegram_id, video_note=message.video_note.file_id)
+            return await message.bot.send_video_note(admin_telegram_id, video_note=message.video_note.file_id)
-        else:
-            # Неизвестный тип - просто копируем
-            await message.bot.send_message(admin_telegram_id, header, parse_mode="HTML")
-            sent_msg = await message.copy_to(admin_telegram_id)
 
-        return sent_msg.message_id
+        await message.bot.send_message(admin_telegram_id, header, parse_mode="HTML")
-    except TelegramRetryAfter as e:
+        return await message.copy_to(admin_telegram_id)
-        if retry and e.retry_after <= MAX_RETRY_AFTER_SECONDS:
+
-            logger.warning(f"FloodWait при отправке админу {admin_telegram_id}: {e.retry_after}с")
+    result = await delivery_service.send_with_guard(
-            await asyncio.sleep(e.retry_after + 1)
+        admin_telegram_id,
-            return await _send_message_to_admin_with_sender(
+        send_message,
-                message, admin_telegram_id, sender_info, retry=False
+        retry=retry,
-            )
+    )
-        logger.warning(f"Пропускаем отправку админу {admin_telegram_id}: FloodWait {e.retry_after}с")
+    if result.success:
-        return None
+        return result.telegram_message.message_id
-    except Exception as e:
+
-        logger.warning(f"Не удалось отправить сообщение админу {admin_telegram_id}: {e}")
+    logger.warning(
-        return None
+        "Не удалось отправить сообщение админу %s: %s",
+        admin_telegram_id,
+        result.status,
+    )
+    return None
 
 
 async def forward_to_channel(message: Message, channel_id: str) -> tuple[bool, Optional[int]]:

src/handlers/p2p_chat.py

@@ -15,6 +15,7 @@ from src.core.services import UserService
 from src.core.models import User
 from src.core.database import async_session_maker
 from src.core.config import ADMIN_IDS
+from src.core.delivery import delivery_service
 
 
 router = Router(name='p2p_chat_router')
@@ -416,49 +417,58 @@ async def handle_p2p_message(message: Message, state: FSMContext):
             file_id = message.document.file_id
             text = message.caption
         
-        # Отправляем сообщение получателю
+        async def send_to_recipient():
-        try:
             if message_type == "text":
-                sent = await message.bot.send_message(
+                return await message.bot.send_message(
                     recipient_telegram_id,
                     f"<b>{sender_name}</b>\n\n{text}",
                     parse_mode="HTML"
                 )
             elif message_type == "photo":
-                sent = await message.bot.send_photo(
+                return await message.bot.send_photo(
                     recipient_telegram_id,
                     photo=file_id,
                     caption=f"<b>{sender_name}</b>\n\n{text or ''}" ,
                     parse_mode="HTML"
                 )
             elif message_type == "video":
-                sent = await message.bot.send_video(
+                return await message.bot.send_video(
                     recipient_telegram_id,
                     video=file_id,
                     caption=f"<b>{sender_name}</b>\n\n{text or ''}",
                     parse_mode="HTML"
                 )
             elif message_type == "document":
-                sent = await message.bot.send_document(
+                return await message.bot.send_document(
                     recipient_telegram_id,
                     document=file_id,
                     caption=f"<b>{sender_name}</b>\n\n{text or ''}",
                     parse_mode="HTML"
                 )
 
-            # Сохраняем в БД
+            return await message.copy_to(recipient_telegram_id)
-            await P2PMessageService.send_message(
-                session,
-                sender_id=sender.id,
-                recipient_id=recipient_id,
-                message_type=message_type,
-                text=text,
-                file_id=file_id,
-                sender_message_id=message.message_id,
-                recipient_message_id=sent.message_id
-            )
 
-            await message.answer("✅ Сообщение доставлено")
+        delivery = await delivery_service.send_with_guard(
+            recipient_telegram_id,
+            send_to_recipient,
+        )
+        if not delivery.success:
+            if delivery.status in {"blocked_bot", "deactivated", "not_found", "chat_not_found"}:
+                await message.answer("❌ Получатель недоступен: он мог заблокировать бота")
+            else:
+                await message.answer("❌ Не удалось доставить сообщение. Попробуйте позже")
+            return
 
-        except Exception as e:
+        # Сохраняем в БД только реально доставленное сообщение.
-            await message.answer(f"❌ Не удалось доставить сообщение: {e}")
+        await P2PMessageService.send_message(
+            session,
+            sender_id=sender.id,
+            recipient_id=recipient_id,
+            message_type=message_type,
+            text=text,
+            file_id=file_id,
+            sender_message_id=message.message_id,
+            recipient_message_id=delivery.telegram_message.message_id
+        )
+
+        await message.answer("✅ Сообщение доставлено")

src/handlers/redraw_handlers.py

@@ -13,6 +13,7 @@ from src.core.services import LotteryService
 from src.core.models import User, Winner
 from src.core.config import ADMIN_IDS
 from src.core.permissions import admin_only
+from src.core.delivery import delivery_service
 
 
 router = Router()
@@ -276,18 +277,26 @@ async def redraw_lottery(message: Message):
                             )]
                         ])
                         
-                        try:
+                        delivery = await delivery_service.send_with_guard(
-                            await message.bot.send_message(
+                            owner.telegram_id,
-                                owner.telegram_id,
+                            lambda: message.bot.send_message(
-                                notification_message,
+                                    owner.telegram_id,
-                                reply_markup=keyboard,
+                                    notification_message,
-                                parse_mode="Markdown"
+                                    reply_markup=keyboard,
-                            )
+                                    parse_mode="Markdown"
+                                ),
+                        )
 
+                        if delivery.success:
                             new_winner.is_notified = True
                             await session.commit()
-                        except:
+                        else:
-                            pass
+                            import logging
+                            logging.getLogger(__name__).warning(
+                                "Не удалось уведомить нового победителя %s: %s",
+                                owner.telegram_id,
+                                delivery.status,
+                            )
         
         # Формируем отчет для админа
         text = f"🔄 **Повторный розыгрыш завершен!**\n\n"
@@ -416,10 +425,12 @@ async def confirm_winner_callback(callback_query):
                 from aiogram import Bot
                 from src.core.config import BOT_TOKEN
                 bot = Bot(token=BOT_TOKEN)
-                await bot.send_message(admin_id, admin_text, parse_mode="Markdown")
+                await delivery_service.send_with_guard(
+                    admin_id,
+                    lambda: bot.send_message(admin_id, admin_text, parse_mode="Markdown"),
+                )
             except Exception as e:
                 import logging
                 logging.getLogger(__name__).error(f"Ошибка отправки админу {admin_id}: {e}")
         
         await callback_query.answer("✅ Выигрыш подтвержден!", show_alert=True)
-

src/utils/notifications.py

@@ -11,6 +11,7 @@ from ..core.models import Winner, User
 from ..core.services import LotteryService
 from ..core.registration_services import AccountService, WinnerNotificationService
 from ..core.config import ADMIN_IDS
+from ..core.delivery import delivery_service
 
 logger = logging.getLogger(__name__)
 
@@ -79,19 +80,28 @@ async def notify_winners_async(bot: Bot, session: AsyncSession, lottery_id: int)
                         )]
                     ])
                     
-                    # Отправляем уведомление с кнопкой
+                    delivery = await delivery_service.send_with_guard(
-                    await bot.send_message(
                         owner.telegram_id,
-                        message,
+                        lambda: bot.send_message(
-                        reply_markup=keyboard,
+                            owner.telegram_id,
-                        parse_mode="Markdown"
+                            message,
+                            reply_markup=keyboard,
+                            parse_mode="Markdown"
+                        ),
                     )
 
-                    # Отмечаем, что уведомление отправлено
+                    if delivery.success:
-                    winner.is_notified = True
+                        # Отмечаем, что уведомление отправлено
-                    await session.commit()
+                        winner.is_notified = True
+                        await session.commit()
 
-                    logger.info(f"✅ Отправлено уведомление победителю {owner.telegram_id} за счет {winner.account_number}")
+                        logger.info(f"✅ Отправлено уведомление победителю {owner.telegram_id} за счет {winner.account_number}")
+                    else:
+                        logger.warning(
+                            "⚠️ Уведомление победителю %s не отправлено: %s",
+                            owner.telegram_id,
+                            delivery.status,
+                        )
                 else:
                     logger.warning(f"⚠️ Владелец счета {winner.account_number} не найден или нет telegram_id")
             
@@ -118,16 +128,26 @@ async def notify_winners_async(bot: Bot, session: AsyncSession, lottery_id: int)
                         )]
                     ])
                     
-                    await bot.send_message(
+                    delivery = await delivery_service.send_with_guard(
                         user.telegram_id,
-                        message,
+                        lambda: bot.send_message(
-                        reply_markup=keyboard
+                            user.telegram_id,
+                            message,
+                            reply_markup=keyboard
+                        ),
                     )
 
-                    winner.is_notified = True
+                    if delivery.success:
-                    await session.commit()
+                        winner.is_notified = True
+                        await session.commit()
 
-                    logger.info(f"✅ Отправлено уведомление победителю {user.telegram_id} (user_id={user.id})")
+                        logger.info(f"✅ Отправлено уведомление победителю {user.telegram_id} (user_id={user.id})")
+                    else:
+                        logger.warning(
+                            "⚠️ Уведомление победителю %s не отправлено: %s",
+                            user.telegram_id,
+                            delivery.status,
+                        )
                 else:
                     logger.warning(f"⚠️ Пользователь {winner.user_id} не найден или нет telegram_id")
             

tests/test_delivery_guard.py

@@ -0,0 +1,130 @@
+import os
+import sys
+
+import pytest
+from aiogram.exceptions import TelegramForbiddenError
+from sqlalchemy import delete, select
+
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+import src.core.models  # noqa: F401 - register SQLAlchemy models before init_db
+from src.core.activity_service import ActivityService
+from src.core.database import async_session_maker, init_db
+from src.core.delivery import DeliveryService
+from src.core.models import BlockedUser
+
+
+class FakeTelegramMessage:
+    message_id = 123
+
+
+async def _cleanup_blocked_user(telegram_id: int):
+    async with async_session_maker() as session:
+        await session.execute(
+            delete(BlockedUser).where(BlockedUser.telegram_id == telegram_id)
+        )
+        await session.commit()
+
+
+async def _get_blocked_user(telegram_id: int):
+    async with async_session_maker() as session:
+        result = await session.execute(
+            select(BlockedUser).where(BlockedUser.telegram_id == telegram_id)
+        )
+        return result.scalar_one_or_none()
+
+
+@pytest.mark.asyncio
+async def test_delivery_guard_skips_known_blocked_user():
+    await init_db()
+    telegram_id = 880000001
+    await _cleanup_blocked_user(telegram_id)
+
+    async with async_session_maker() as session:
+        session.add(
+            BlockedUser(
+                telegram_id=telegram_id,
+                error_type="blocked_bot",
+                error_message="Forbidden: bot was blocked by the user",
+                is_active=True,
+            )
+        )
+        await session.commit()
+
+    called = False
+
+    async def send_call():
+        nonlocal called
+        called = True
+        return FakeTelegramMessage()
+
+    result = await DeliveryService().send_with_guard(telegram_id, send_call)
+
+    assert result.success is False
+    assert result.skipped is True
+    assert result.status == "blocked_bot"
+    assert called is False
+
+    await _cleanup_blocked_user(telegram_id)
+
+
+@pytest.mark.asyncio
+async def test_delivery_guard_marks_user_blocked_on_forbidden():
+    await init_db()
+    telegram_id = 880000002
+    await _cleanup_blocked_user(telegram_id)
+
+    async def send_call():
+        raise TelegramForbiddenError(
+            method=None,
+            message="Forbidden: bot was blocked by the user",
+        )
+
+    result = await DeliveryService().send_with_guard(telegram_id, send_call)
+    blocked_user = await _get_blocked_user(telegram_id)
+
+    assert result.success is False
+    assert result.status == "blocked_bot"
+    assert blocked_user is not None
+    assert blocked_user.is_active is True
+    assert blocked_user.error_type == "blocked_bot"
+
+    await _cleanup_blocked_user(telegram_id)
+
+
+def test_delivery_guard_does_not_classify_parse_errors_as_blocked():
+    service = DeliveryService()
+
+    assert service.classify_bad_request(Exception("Bad Request: can't parse entities")) is None
+
+
+@pytest.mark.asyncio
+async def test_activity_reactivates_delivery_after_user_interaction():
+    await init_db()
+    telegram_id = 880000003
+    await _cleanup_blocked_user(telegram_id)
+
+    async with async_session_maker() as session:
+        session.add(
+            BlockedUser(
+                telegram_id=telegram_id,
+                error_type="blocked_bot",
+                error_message="Forbidden: bot was blocked by the user",
+                is_active=True,
+            )
+        )
+        await session.commit()
+
+    async with async_session_maker() as session:
+        reactivated = await ActivityService.update_activity_and_reactivate(
+            session,
+            telegram_id,
+        )
+
+    blocked_user = await _get_blocked_user(telegram_id)
+
+    assert reactivated is True
+    assert blocked_user is not None
+    assert blocked_user.is_active is False
+
+    await _cleanup_blocked_user(telegram_id)