xiaji
34b03c0e64
修复了core/tasks.py中错误的EmailBackend导入方式，改为从正确路径导入。同时在测试文件中添加了Django环境初始化代码，确保测试能够正确运行。
330 lines
12 KiB
Python
330 lines
12 KiB
Python
from celery import shared_task
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from loguru import logger
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from django.core.mail import EmailMessage, EmailMultiAlternatives
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from django.core.mail.backends.smtp import EmailBackend
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from django.utils import timezone
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from datetime import timedelta
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import traceback
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@shared_task(bind=True, max_retries=3, default_retry_delay=60)
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def celery_send_test_email(self, test_mode=True):
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"""
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Celery异步发送测试邮件任务
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支持重试机制，适合生产环境使用
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"""
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task_id = self.request.id if hasattr(self, 'request') else 'unknown'
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logger.info(f"[任务 {task_id}] 开始执行异步邮件发送任务")
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try:
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# 从数据库获取邮件配置
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from core.models import SystemConfig
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config = SystemConfig.get_config()
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# 优先使用sender_email，其次使用smtp_username作为发件人
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from_email = config.sender_email or config.smtp_username
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if not from_email:
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raise ValueError("未配置发件邮箱")
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# 验证发件人邮箱格式
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import re
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email_pattern = r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$'
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if not re.match(email_pattern, from_email):
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raise ValueError(f"发件人邮箱格式不正确: {from_email}")
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to_email = config.recipient_email or from_email
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# 验证收件人邮箱格式
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if not re.match(email_pattern, to_email):
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raise ValueError(f"收件人邮箱格式不正确: {to_email}")
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recipient_list = [to_email]
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# 获取SMTP配置
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host = config.smtp_server or 'localhost'
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port = config.smtp_port or 587
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username = config.smtp_username or ''
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password = config.smtp_password or ''
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use_tls = True # 默认使用TLS
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# 创建邮件后端
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backend = EmailBackend(
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host=host,
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port=port,
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username=username,
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password=password,
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use_tls=use_tls,
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fail_silently=False
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)
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# 创建邮件内容
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subject = f"[Celery测试] 异步邮件发送成功 - {timezone.now().strftime('%Y-%m-%d %H:%M:%S')}"
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if test_mode:
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body = f"""
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这是一封通过Celery异步发送的测试邮件。
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✅ 邮件发送成功！
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任务信息:
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- 任务ID: {task_id}
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- 发送时间: {timezone.now().strftime('%Y-%m-%d %H:%M:%S')}
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- 发送方式: Celery异步任务
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- 执行重试次数: {self.request.retries}
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邮件配置:
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- 发件服务器: {host}:{port}
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- 使用TLS: {use_tls}
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---
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家庭日报系统
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自动发送（Celery异步任务）
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"""
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else:
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body = f"""
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家庭日报系统测试邮件
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发送时间: {timezone.now().strftime('%Y-%m-%d %H:%M:%S')}
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发送方式: Celery异步任务
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任务ID: {task_id}
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这是一封测试邮件，用于验证Celery异步邮件发送功能。
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"""
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# 创建邮件
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email = EmailMessage(
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subject=subject,
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body=body,
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from_email=from_email,
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to=recipient_list,
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connection=backend
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)
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email.content_subtype = 'plain'
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email.encoding = 'utf-8'
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# 发送邮件
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logger.info(f"[任务 {task_id}] 正在发送邮件...")
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sent_count = email.send(fail_silently=False)
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if sent_count > 0:
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logger.success(f"[任务 {task_id}] 邮件发送成功！发送给 {len(recipient_list)} 个收件人")
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return {
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'status': 'success',
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'task_id': task_id,
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'sent_to': len(recipient_list),
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'timestamp': timezone.now().isoformat()
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}
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else:
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raise Exception("邮件发送返回0，未能发送邮件")
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except Exception as e:
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error_msg = str(e)
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error_traceback = traceback.format_exc()
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logger.error(f"[任务 {task_id}] 邮件发送失败: {error_msg}")
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logger.error(f"[任务 {task_id}] 错误详情:\n{error_traceback}")
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# 检查是否应该重试
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if self.request.retries < self.max_retries:
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logger.info(f"[任务 {task_id}] 准备第 {self.request.retries + 1} 次重试...")
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# 重试延迟指数增长
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retry_delay = 60 * (2 ** self.request.retries)
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logger.info(f"[任务 {task_id}] {retry_delay}秒后进行重试")
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raise self.retry(exc=e, countdown=retry_delay)
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else:
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logger.error(f"[任务 {task_id}] 已达到最大重试次数 {self.max_retries}，放弃重试")
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# 返回错误信息而不是抛出异常
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return {
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'status': 'failed',
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'task_id': task_id,
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'error': error_msg,
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'retries': self.request.retries,
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'timestamp': timezone.now().isoformat()
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}
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@shared_task(bind=True)
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def celery_send_html_report_email(self, include_attachment=False):
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"""
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Celery异步发送HTML报告邮件
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模拟每日报告发送功能
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"""
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task_id = self.request.id if hasattr(self, 'request') else 'unknown'
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logger.info(f"[任务 {task_id}] 开始执行HTML报告邮件发送任务")
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try:
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# 从数据库获取邮件配置
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from core.models import SystemConfig
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config = SystemConfig.get_config()
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# 优先使用sender_email，其次使用smtp_username作为发件人
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from_email = config.sender_email or config.smtp_username
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if not from_email:
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raise ValueError("未配置发件邮箱")
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# 验证发件人邮箱格式
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import re
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email_pattern = r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$'
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if not re.match(email_pattern, from_email):
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raise ValueError(f"发件人邮箱格式不正确: {from_email}")
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to_email = config.recipient_email or from_email
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# 验证收件人邮箱格式
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if not re.match(email_pattern, to_email):
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raise ValueError(f"收件人邮箱格式不正确: {to_email}")
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if isinstance(to_email, list):
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recipient_list = to_email
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else:
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recipient_list = [to_email]
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# 获取SMTP配置
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host = config.smtp_server or 'localhost'
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port = config.smtp_port or 587
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username = config.smtp_username or ''
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password = config.smtp_password or ''
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use_tls = True # 默认使用TLS
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# 准备报告数据
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today = timezone.now().date()
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yesterday = today - timedelta(days=1)
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report_data = {
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'today': today.strftime('%Y年%m月%d日'),
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'yesterday': yesterday.strftime('%Y年%m月%d日'),
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'tasks': [],
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'reading': {'count': 0, 'items': []},
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'insights': {'count': 0, 'items': []},
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}
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# 创建HTML邮件内容（使用普通字符串拼接，避免f-string中的%语法问题）
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html_content = '''
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<style>
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body { font-family: 'Microsoft YaHei', Arial, sans-serif; line-height: 1.6; color: #333; max-width: 600px; margin: 0 auto; }
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.header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 30px 20px; text-align: center; }
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.header h1 { margin: 0; font-size: 24px; }
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.header .date { font-size: 14px; opacity: 0.9; margin-top: 10px; }
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.content { padding: 20px; background: #f9f9f9; }
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.section { background: white; border-radius: 8px; padding: 20px; margin-bottom: 20px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
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.section h2 { color: #667eea; font-size: 18px; margin-top: 0; border-bottom: 2px solid #667eea; padding-bottom: 10px; }
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.stat { display: inline-block; background: #667eea; color: white; padding: 5px 15px; border-radius: 20px; margin: 5px; }
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.footer { text-align: center; padding: 20px; color: #666; font-size: 12px; }
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.success-badge { background: #28a745; color: white; padding: 10px 20px; border-radius: 5px; display: inline-block; }
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</style>
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</head>
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<body>
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<div class="header">
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<h1>📊 家庭日报</h1>
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<div class="date">{today}</div>
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</div>
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<div class="content">
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<div class="section">
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<h2>✅ 邮件发送测试</h2>
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<p>这是一封通过 <strong>Celery异步任务</strong> 发送的HTML格式邮件。</p>
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<p><strong>任务ID:</strong> {task_id}</p>
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<p><strong>发送时间:</strong> {send_time}</p>
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<p><strong>状态:</strong> <span class="success-badge">发送成功</span></p>
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</div>
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<div class="section">
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<h2>📈 统计信息</h2>
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<p>阅读记录: <span class="stat">{reading_count} 篇</span></p>
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<p>感悟记录: <span class="stat">{insights_count} 条</span></p>
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<p>家庭事项: <span class="stat">{tasks_count} 项</span></p>
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</div>
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<div class="section">
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<h2>📋 说明</h2>
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<p>此邮件由Celery异步任务自动发送。</p>
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<p>如需取消订阅，请联系系统管理员。</p>
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</div>
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</div>
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<div class="footer">
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<p>---</p>
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<p>家庭日报系统 | 自动发送</p>
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<p>任务ID: {task_id}</p>
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</div>
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</body>
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</html>
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'''.format(
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today=report_data['today'],
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task_id=task_id,
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send_time=timezone.now().strftime('%Y-%m-%d %H:%M:%S'),
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reading_count=report_data['reading']['count'],
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insights_count=report_data['insights']['count'],
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tasks_count=len(report_data['tasks'])
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)
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# 创建邮件后端
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backend = EmailBackend(
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host=host,
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port=port,
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username=username,
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password=password,
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use_tls=use_tls,
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fail_silently=False
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)
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# 创建邮件
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subject = f"[Celery] 家庭日报 {report_data['today']} - 测试报告"
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email = EmailMultiAlternatives(
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subject=subject,
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body=html_content,
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from_email=from_email,
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to=recipient_list,
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connection=backend
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)
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email.attach_alternative(html_content, "text/html")
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email.encoding = 'utf-8'
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# 添加附件（如果需要）
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if include_attachment:
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attachment_content = '''家庭日报测试报告
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发送时间: {send_time}
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任务ID: {task_id}
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发送方式: Celery异步任务
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这是一份自动生成的测试报告
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'''.format(
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send_time=timezone.now().isoformat(),
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task_id=task_id
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)
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email.attach('daily_report_test.txt', attachment_content, 'text/plain')
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logger.info(f"[任务 {task_id}] 已添加测试附件")
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# 发送邮件
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logger.info(f"[任务 {task_id}] 正在发送HTML报告邮件...")
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sent_count = email.send(fail_silently=False)
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if sent_count > 0:
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logger.success(f"[任务 {task_id}] HTML报告邮件发送成功！")
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return {
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'status': 'success',
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'task_id': task_id,
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'type': 'html_report',
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'sent_to': len(recipient_list),
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'has_attachment': include_attachment,
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'timestamp': timezone.now().isoformat()
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}
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else:
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raise Exception("邮件发送返回0")
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except Exception as e:
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error_msg = str(e)
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error_traceback = traceback.format_exc()
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logger.error(f"[任务 {task_id}] HTML报告邮件发送失败: {error_msg}")
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logger.error(f"[任务 {task_id}] 错误详情:\n{error_traceback}")
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return {
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'status': 'failed',
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'task_id': task_id,
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'type': 'html_report',
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'error': error_msg,
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'timestamp': timezone.now().isoformat()
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}
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