Игорь Надеин
0633c5e2d5
- Добавлена конфигурация Celery (eusrr_backend/celery.py) - Созданы async задачи для уведомлений (notifications/tasks.py) - Обновлены все notification_signals на create_notification_async() - Добавлен метод NotificationService.create_notification_async() с fallback - Установлены пакеты: django-celery-beat, django-celery-results, flower - Применены миграции для Celery приложений - Документация: CELERY_SETUP.md, CELERY_INTEGRATION_PLAN.md Производительность: уменьшение времени отправки сообщений с ~500ms до <50ms
729 lines
29 KiB
Python
729 lines
29 KiB
Python
"""
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Сервисный слой для работы с уведомлениями
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"""
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import json
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import logging
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from typing import Any, Dict, Optional
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from django.contrib.auth import get_user_model
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from django.utils import timezone
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from channels.layers import get_channel_layer
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from asgiref.sync import async_to_sync
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from .models import (
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Notification,
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NotificationType,
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UserNotificationSettings,
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)
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from .email_sender import EmailNotificationSender
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from .telegram_sender import TelegramNotificationSender
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logger = logging.getLogger(__name__)
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User = get_user_model()
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def is_celery_available():
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"""Проверка доступности Celery worker"""
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try:
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from celery import current_app
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inspect = current_app.control.inspect()
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active_workers = inspect.active()
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return active_workers is not None and len(active_workers) > 0
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except Exception:
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return False
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class NotificationService:
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"""Сервис для создания и отправки уведомлений"""
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@staticmethod
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def create_notification_async(
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recipient: User,
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notification_type_code: str,
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title: str,
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message: str,
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content_object=None,
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action_url: str = '',
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action_text: str = 'Посмотреть',
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metadata: Optional[Dict[str, Any]] = None,
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) -> bool:
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"""
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Создать уведомление асинхронно через Celery (рекомендуется)
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Args:
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recipient: Получатель уведомления
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notification_type_code: Код типа уведомления
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title: Заголовок
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message: Текст сообщения
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content_object: Связанный объект (опционально)
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action_url: URL для действия
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action_text: Текст кнопки действия
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metadata: Дополнительные данные
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Returns:
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True если задача поставлена в очередь, False если fallback на sync
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"""
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try:
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# Проверяем доступность Celery
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if not is_celery_available():
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logger.warning(
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f"[create_notification_async] Celery недоступен, fallback на синхронный режим"
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)
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NotificationService.create_notification(
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recipient=recipient,
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notification_type_code=notification_type_code,
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title=title,
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message=message,
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content_object=content_object,
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action_url=action_url,
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action_text=action_text,
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metadata=metadata,
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send_immediately=True,
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)
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return False
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# Импортируем задачу
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from notifications.tasks import send_notification_task
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# Отправляем задачу в Celery
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send_notification_task.delay(
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notification_type=notification_type_code,
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user_id=recipient.id,
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title=title,
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message=message,
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link=action_url,
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sender_id=None,
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metadata=metadata or {},
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)
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logger.debug(
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f"[create_notification_async] ✅ Задача отправлена в Celery: "
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f"user={recipient.id}, type={notification_type_code}"
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)
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return True
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except Exception as e:
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logger.exception(
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f"[create_notification_async] ❌ Ошибка при отправке в Celery: {e}"
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)
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# Fallback на синхронный режим
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NotificationService.create_notification(
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recipient=recipient,
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notification_type_code=notification_type_code,
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title=title,
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message=message,
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content_object=content_object,
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action_url=action_url,
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action_text=action_text,
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metadata=metadata,
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send_immediately=True,
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)
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return False
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@staticmethod
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def create_notification(
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recipient: User,
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notification_type_code: str,
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title: str,
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message: str,
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content_object=None,
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action_url: str = '',
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action_text: str = 'Посмотреть',
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metadata: Optional[Dict[str, Any]] = None,
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send_immediately: bool = True,
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) -> Optional[Notification]:
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"""
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Создать и отправить уведомление
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Args:
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recipient: Получатель уведомления
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notification_type_code: Код типа уведомления
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title: Заголовок
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message: Текст сообщения
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content_object: Связанный объект (опционально)
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action_url: URL для действия
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action_text: Текст кнопки действия
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metadata: Дополнительные данные
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send_immediately: Отправить сразу или отложить
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Returns:
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Созданное уведомление или None если тип не найден
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"""
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logger.debug(
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f"[NotificationService.create_notification] НАЧАЛО: "
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f"recipient={recipient.id} ({recipient.email}), "
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f"type={notification_type_code}, "
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f"send_immediately={send_immediately}, "
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f"title='{title[:50]}...'"
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)
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try:
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notification_type = NotificationType.objects.get(
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code=notification_type_code,
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is_active=True
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)
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logger.debug(
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f"[NotificationService.create_notification] Тип уведомления найден: "
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f"{notification_type.name} (category={notification_type.category.code})"
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)
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except NotificationType.DoesNotExist:
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logger.error(
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f"[NotificationService.create_notification] ❌ ОШИБКА: "
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f"Тип уведомления '{notification_type_code}' не найден или неактивен!"
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)
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return None
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# Проверить настройки пользователя
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settings = NotificationService.get_user_settings(
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recipient, notification_type
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)
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logger.debug(
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f"[NotificationService.create_notification] Настройки пользователя: "
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f"enabled={settings.is_enabled}, "
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f"web={settings.send_web}, "
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f"email={settings.send_email}, "
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f"telegram={settings.send_telegram}"
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)
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if not settings.is_enabled:
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logger.warning(
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f"[NotificationService.create_notification] ⏭️ ПРОПУСК: "
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f"Уведомления отключены для user={recipient.id}"
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)
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return None
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# Создать краткое сообщение
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short_message = message[:150] if len(message) > 150 else message
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# Создать уведомление
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notification = Notification.objects.create(
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recipient=recipient,
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notification_type=notification_type,
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title=title,
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message=message,
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short_message=short_message,
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content_object=content_object,
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action_url=action_url,
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action_text=action_text,
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metadata=metadata or {},
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)
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logger.debug(
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f"[NotificationService.create_notification] ✅ Уведомление создано: "
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f"id={notification.id}, "
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f"action_url={action_url}"
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)
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# Отправить если нужно
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if send_immediately:
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logger.debug(
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f"[NotificationService.create_notification] ➡️ Немедленная отправка notification_id={notification.id}"
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)
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NotificationService.send_notification(notification, settings)
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else:
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logger.debug(
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f"[NotificationService.create_notification] ⏸️ Отложенная отправка notification_id={notification.id}"
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)
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return notification
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@staticmethod
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def send_notification(
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notification: Notification,
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settings: Optional[UserNotificationSettings] = None
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):
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"""Отправить уведомление по всем каналам"""
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logger.debug(
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f"[NotificationService.send_notification] 📤 НАЧАЛО notification_id={notification.id} "
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f"recipient={notification.recipient.id} type={notification.notification_type.code}"
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)
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if settings is None:
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settings = NotificationService.get_user_settings(
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notification.recipient,
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notification.notification_type
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)
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logger.debug(
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f"[NotificationService.send_notification] Активные каналы: "
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f"{'✅' if settings.send_web else '❌'} Web, "
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f"{'✅' if settings.send_email else '❌'} Email, "
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f"{'✅' if settings.send_telegram else '❌'} Telegram"
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)
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# Отправить на веб (WebSocket) - для онлайн пользователей
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if settings.send_web:
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logger.debug(
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f"[NotificationService.send_notification] 🌐 Отправка через WebSocket..."
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)
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try:
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# Отправляем WebSocket только для онлайн уведомлений (не push)
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NotificationService.send_web_socket(notification)
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notification.sent_web = True
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logger.debug(
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f"[NotificationService.send_notification] ✅ WebSocket: успешно отправлено"
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)
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except Exception as e:
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logger.error(
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f"[NotificationService.send_notification] ❌ WebSocket: ошибка - {e}",
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exc_info=True
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)
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else:
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logger.debug(
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f"[NotificationService.send_notification] ⏭️ WebSocket: канал отключен"
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)
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# Отправить Web Push (для offline пользователей)
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# ВАЖНО: отправляем независимо от send_web настройки,
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# если есть активные push-подписки
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if settings.send_web:
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logger.debug(
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f"[NotificationService.send_notification] 📲 Отправка Web Push (offline)..."
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)
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try:
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push_count = NotificationService.send_web_push_notification(notification)
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if push_count > 0:
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logger.debug(
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f"[NotificationService.send_notification] ✅ Web Push: отправлено на {push_count} устройств"
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)
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except Exception as e:
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logger.error(
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f"[NotificationService.send_notification] ❌ Web Push: ошибка - {e}",
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exc_info=True
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)
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else:
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logger.debug(
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f"[NotificationService.send_notification] ⏭️ Web Push: канал отключен"
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)
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# Отправить на email
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if settings.send_email:
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logger.debug(
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f"[NotificationService.send_notification] 📧 Отправка Email..."
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)
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try:
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recipient_email = notification.recipient.email
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if recipient_email:
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logger.debug(
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f"[NotificationService.send_notification] Email адрес: {recipient_email}"
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)
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success = EmailNotificationSender.send_notification_email(
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notification=notification,
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recipient_email=recipient_email,
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)
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notification.sent_email = success
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if success:
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logger.debug(
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f"[NotificationService.send_notification] ✅ Email: успешно отправлено на {recipient_email}"
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)
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else:
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logger.warning(
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f"[NotificationService.send_notification] ⚠️ Email: отправка вернула False"
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)
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else:
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notification.sent_email = False
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logger.warning(
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f"[NotificationService.send_notification] ⚠️ Email: у пользователя {notification.recipient} нет email адреса"
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)
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except Exception as e:
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notification.sent_email = False
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logger.error(
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f"[NotificationService.send_notification] ❌ Email: ошибка отправки - {e}",
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exc_info=True
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)
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else:
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logger.debug(
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f"[NotificationService.send_notification] ⏭️ Email: канал отключен"
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)
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# Отправить в Telegram
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if settings.send_telegram:
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logger.debug(
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f"[NotificationService.send_notification] 💬 Отправка в Telegram..."
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)
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logger.debug(
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f"[NotificationService.send_notification] Получатель: user_id={notification.recipient.id}"
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)
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try:
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# Проверяем наличие Telegram Chat ID в профиле
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telegram_chat_id = getattr(
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notification.recipient, 'telegram', ''
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)
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if telegram_chat_id:
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telegram_chat_id = telegram_chat_id.strip()
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logger.debug(
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f"[NotificationService.send_notification] Telegram Chat ID: '{telegram_chat_id}'"
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)
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if telegram_chat_id:
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# Получаем site_url для формирования полных ссылок
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from django.conf import settings as django_settings
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site_url = getattr(
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django_settings,
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'SITE_URL',
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'http://localhost:9000'
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)
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logger.debug(
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f"[NotificationService.send_notification] ➡️ Вызов TelegramNotificationSender.send_notification"
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)
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# Отправляем через Bot API по chat_id
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from .telegram_sender import TelegramNotificationSender
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success = TelegramNotificationSender.send_notification(
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notification=notification,
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chat_id=telegram_chat_id,
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site_url=site_url
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)
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notification.sent_telegram = success
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if success:
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logger.debug(
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f"[NotificationService.send_notification] ✅ Telegram: успешно отправлено (chat_id={telegram_chat_id})"
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)
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else:
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logger.warning(
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f"[NotificationService.send_notification] ⚠️ Telegram: отправка вернула False"
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)
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else:
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notification.sent_telegram = False
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logger.warning(
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f"[NotificationService.send_notification] ⚠️ Telegram: у пользователя нет Chat ID"
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)
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except Exception as e:
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notification.sent_telegram = False
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logger.error(
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f"[NotificationService.send_notification] ❌ Telegram: ошибка - {e}",
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exc_info=True
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)
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else:
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logger.debug(
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f"[NotificationService.send_notification] ⏭️ Telegram: канал отключен"
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)
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# Обновить время отправки
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notification.sent_at = timezone.now()
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notification.save(update_fields=[
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'sent_web',
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'sent_email',
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'sent_telegram',
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'sent_whatsapp',
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'sent_wechat',
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'sent_at'
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])
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logger.debug(
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f"[NotificationService.send_notification] 🎯 ЗАВЕРШЕНО notification_id={notification.id} "
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f"Web={'✅' if notification.sent_web else '❌'} "
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f"Email={'✅' if notification.sent_email else '❌'} "
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f"Telegram={'✅' if notification.sent_telegram else '❌'}"
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)
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@staticmethod
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def send_web_socket(notification: Notification):
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"""
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Отправить уведомление через WebSocket (только для онлайн пользователей).
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Переименовано из send_web_notification для ясности.
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"""
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logger.debug(
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f"[NotificationService.send_web_socket] НАЧАЛО: "
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f"notification_id={notification.id}, "
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f"recipient={notification.recipient.id}"
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)
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channel_layer = get_channel_layer()
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notification_data = {
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'id': notification.id,
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'title': notification.title,
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'message': notification.short_message,
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'category': notification.notification_type.category.code,
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'category_name': notification.notification_type.category.name,
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'icon': notification.notification_type.category.icon,
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'color': notification.notification_type.category.color,
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'priority': notification.notification_type.priority,
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'action_url': notification.action_url,
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'action_text': notification.action_text,
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'created_at': notification.created_at.isoformat(),
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}
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group_name = f'notifications_{notification.recipient.id}'
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logger.debug(
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f"[NotificationService.send_web_socket] Отправка в группу: {group_name}"
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)
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async_to_sync(channel_layer.group_send)(
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group_name,
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{
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'type': 'notification_new',
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'notification': notification_data
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}
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)
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logger.debug(
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f"[NotificationService.send_web_socket] ✅ Уведомление отправлено в WebSocket"
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)
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# Обновить счетчик
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unread_count = Notification.objects.filter(
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recipient=notification.recipient,
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is_read=False,
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is_archived=False
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).count()
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logger.debug(
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f"[NotificationService.send_web_socket] Обновление счетчика: {unread_count} непрочитанных"
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)
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async_to_sync(channel_layer.group_send)(
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group_name,
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{
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'type': 'notification_count_update',
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'count': unread_count
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}
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)
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logger.debug(
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f"[NotificationService.send_web_socket] ✅ Счетчик обновлен"
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)
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@staticmethod
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def send_web_push_notification(notification: Notification) -> int:
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"""
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Отправить push-уведомление через Web Push API.
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Работает даже когда браузер закрыт.
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|
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Args:
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notification: Объект уведомления
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Returns:
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Количество успешно отправленных push-уведомлений
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"""
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from django.conf import settings as django_settings
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from .models import WebPushSubscription
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logger.debug(
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f"[NotificationService.send_web_push_notification] НАЧАЛО: "
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f"notification_id={notification.id}, "
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f"recipient={notification.recipient.id}"
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)
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# Проверяем наличие VAPID ключей
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vapid_private_key = getattr(django_settings, 'VAPID_PRIVATE_KEY', None)
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vapid_public_key = getattr(django_settings, 'VAPID_PUBLIC_KEY', None)
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vapid_email = getattr(django_settings, 'VAPID_ADMIN_EMAIL', 'admin@example.com')
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if not vapid_private_key or not vapid_public_key:
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logger.warning(
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f"[NotificationService.send_web_push_notification] ⚠️ VAPID ключи не настроены"
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)
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return 0
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# Получаем все активные подписки пользователя
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subscriptions = WebPushSubscription.objects.filter(
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user=notification.recipient,
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is_active=True
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)
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subscription_count = subscriptions.count()
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if subscription_count == 0:
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logger.debug(
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f"[NotificationService.send_web_push_notification] ℹ️ Нет активных push-подписок"
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)
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return 0
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logger.debug(
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f"[NotificationService.send_web_push_notification] Найдено подписок: {subscription_count}"
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)
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# Формируем payload для push-уведомления
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payload = {
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'title': notification.title,
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'body': notification.short_message or notification.message[:150],
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'tag': f'notification-{notification.id}',
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'icon': '/static/img/logo-192.png',
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'badge': '/static/img/badge-72.png',
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'data': {
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'url': notification.action_url or '/',
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'notification_id': notification.id,
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'category': notification.notification_type.category.code,
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},
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'requireInteraction': notification.notification_type.priority in ['high', 'urgent'],
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}
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try:
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from pywebpush import webpush, WebPushException
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except ImportError:
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logger.error(
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f"[NotificationService.send_web_push_notification] ❌ pywebpush не установлен"
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)
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return 0
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success_count = 0
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failed_subscriptions = []
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for subscription in subscriptions:
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try:
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subscription_info = {
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'endpoint': subscription.endpoint,
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'keys': {
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'p256dh': subscription.p256dh_key,
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'auth': subscription.auth_key
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}
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}
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# Извлекаем origin из endpoint для поля 'aud' в VAPID claims
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from urllib.parse import urlparse
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parsed_url = urlparse(subscription.endpoint)
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audience = f"{parsed_url.scheme}://{parsed_url.netloc}"
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vapid_claims = {
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'sub': f'mailto:{vapid_email}',
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'aud': audience
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}
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webpush(
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subscription_info=subscription_info,
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data=json.dumps(payload),
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vapid_private_key=vapid_private_key,
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vapid_claims=vapid_claims,
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ttl=86400 # 24 часа
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)
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success_count += 1
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subscription.reset_errors()
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except WebPushException as e:
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logger.warning(f"[WebPush] Error: {e}")
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# Обрабатываем ошибки
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subscription.error_count += 1
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subscription.last_error = str(e)[:500]
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# Если подписка устарела (410 Gone) или недействительна - деактивируем
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if e.response and e.response.status_code in [404, 410]:
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subscription.is_active = False
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logger.info(f"[WebPush] Subscription {subscription.id} deactivated (expired)")
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# Если слишком много ошибок - деактивируем
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if subscription.error_count >= 5:
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subscription.is_active = False
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logger.info(f"[WebPush] Subscription {subscription.id} deactivated (too many errors)")
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subscription.save(update_fields=['error_count', 'last_error', 'is_active', 'updated_at'])
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except Exception as e:
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logger.error(f"[WebPush] Unexpected error: {e}")
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logger.debug(
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f"[NotificationService.send_web_push_notification] ✅ Завершено: "
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f"{success_count}/{subscription_count} успешно"
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)
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return success_count
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@staticmethod
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def get_user_settings(
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user: User,
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notification_type: NotificationType
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) -> UserNotificationSettings:
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"""Получить или создать настройки пользователя"""
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settings, created = UserNotificationSettings.objects.get_or_create(
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user=user,
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notification_type=notification_type,
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defaults={
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'is_enabled': notification_type.default_enabled,
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'send_web': notification_type.default_channels.get(
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'web', True
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),
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'send_email': notification_type.default_channels.get(
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'email', False
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),
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'send_telegram': notification_type.default_channels.get(
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'telegram', False
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),
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'send_whatsapp': notification_type.default_channels.get(
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'whatsapp', False
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),
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'send_wechat': notification_type.default_channels.get(
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'wechat', False
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),
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}
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)
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logger.debug(
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f"[Settings] User {user.id} type={notification_type.code} "
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f"created={created} enabled={settings.is_enabled} "
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f"web={settings.send_web} email={settings.send_email} "
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f"telegram={settings.send_telegram}"
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)
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return settings
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@staticmethod
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def mark_as_read(notification_id: int, user: User) -> bool:
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"""Отметить уведомление как прочитанное"""
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try:
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notification = Notification.objects.get(
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id=notification_id,
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recipient=user
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)
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notification.mark_as_read()
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# Обновить счетчик через WebSocket
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channel_layer = get_channel_layer()
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unread_count = Notification.objects.filter(
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recipient=user,
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is_read=False,
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is_archived=False
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).count()
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async_to_sync(channel_layer.group_send)(
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f'notifications_{user.id}',
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{
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'type': 'notification_count_update',
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'count': unread_count
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}
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)
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return True
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except Notification.DoesNotExist:
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return False
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@staticmethod
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def mark_all_as_read(user: User, category: Optional[str] = None) -> int:
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"""Отметить все уведомления как прочитанные"""
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queryset = Notification.objects.filter(
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recipient=user,
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is_read=False
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)
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if category:
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queryset = queryset.filter(
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notification_type__category__code=category
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)
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count = queryset.update(
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is_read=True,
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read_at=timezone.now()
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)
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# Обновить счетчик
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channel_layer = get_channel_layer()
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unread_count = Notification.objects.filter(
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recipient=user,
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is_read=False,
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is_archived=False
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).count()
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async_to_sync(channel_layer.group_send)(
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f'notifications_{user.id}',
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{
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'type': 'notification_count_update',
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'count': unread_count
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}
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)
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return count
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