refactor(email): 重构邮件配置从settings.py迁移到数据库

将邮件配置从Django的settings.py迁移到数据库的SystemConfig模型
更新测试文件以使用新的配置方式
添加邮件后端连接配置以提高灵活性

test_celery_email.py

@@ -24,6 +24,7 @@ def test_celery_email_config():
 
         from django.conf import settings
         from diary_family.celery import app
+        from core.models import SystemConfig
 
         # 检查Celery配置
         celery_config = {
@@ -45,12 +46,13 @@ def test_celery_email_config():
                 else:
                     logger.info(f"  {key}: {value}")
 
-        # 检查邮件配置
+        # 从数据库获取邮件配置
+        config = SystemConfig.get_config()
         email_config = {
-            'EMAIL_BACKEND': getattr(settings, 'EMAIL_BACKEND', None),
-            'EMAIL_HOST': getattr(settings, 'EMAIL_HOST', None),
-            'EMAIL_PORT': getattr(settings, 'EMAIL_PORT', None),
-            'EMAIL_HOST_USER': getattr(settings, 'EMAIL_HOST_USER', None),
+            'smtp_server': config.smtp_server,
+            'smtp_port': config.smtp_port,
+            'smtp_username': config.smtp_username,
+            'recipient_email': config.recipient_email,
         }
 
         logger.info("邮件配置信息:")
@@ -58,19 +60,18 @@ def test_celery_email_config():
             if value is None:
                 logger.warning(f"  {key}: 未配置")
             else:
-                if 'password' in key.lower():
-                    logger.info(f"  {key}: ***")
-                else:
-                    logger.info(f"  {key}: {value}")
+                logger.info(f"  {key}: {value}")
 
         # 验证必要配置
         missing_configs = []
         if not getattr(settings, 'CELERY_BROKER_URL', None):
             missing_configs.append('CELERY_BROKER_URL')
-        if not getattr(settings, 'EMAIL_HOST', None):
-            missing_configs.append('EMAIL_HOST')
-        if not getattr(settings, 'EMAIL_HOST_USER', None):
-            missing_configs.append('EMAIL_HOST_USER')
+        if not config.smtp_server:
+            missing_configs.append('smtp_server')
+        if not config.smtp_username:
+            missing_configs.append('smtp_username')
+        if not config.smtp_password:
+            missing_configs.append('smtp_password')
 
         if missing_configs:
             logger.error(f"缺少必要的配置: {', '.join(missing_configs)}")
@@ -179,16 +180,33 @@ def celery_send_test_email(self, test_mode=True):
     logger.info(f"[任务 {task_id}] 开始执行异步邮件发送任务")
 
     try:
-        # 获取邮件配置
-        from_email = getattr(settings, 'EMAIL_HOST_USER', None)
+        # 从数据库获取邮件配置
+        from core.models import SystemConfig
+        from django.core.mail.backends.smtp import EmailBackend
+        config = SystemConfig.get_config()
+        from_email = config.smtp_username
         if not from_email:
-            raise ValueError("未配置发件邮箱 (EMAIL_HOST_USER)")
+            raise ValueError("未配置发件邮箱 (smtp_username)")
 
-        to_email = getattr(settings, 'EMAIL_HOST_USER', from_email)
-        if isinstance(to_email, list):
-            recipient_list = to_email
-        else:
-            recipient_list = [to_email]
+        to_email = config.recipient_email or from_email
+        recipient_list = [to_email]
+
+        # 获取SMTP配置
+        host = config.smtp_server or 'localhost'
+        port = config.smtp_port or 587
+        username = config.smtp_username or ''
+        password = config.smtp_password or ''
+        use_tls = True  # 默认使用TLS
+
+        # 创建邮件后端
+        backend = EmailBackend(
+            host=host,
+            port=port,
+            username=username,
+            password=password,
+            use_tls=use_tls,
+            fail_silently=False
+        )
 
         # 创建邮件内容
         subject = f"[Celery测试] 异步邮件发送成功 - {timezone.now().strftime('%Y-%m-%d %H:%M:%S')}"
@@ -206,8 +224,8 @@ def celery_send_test_email(self, test_mode=True):
 - 执行重试次数: {self.request.retries}
 
 邮件配置:
-- 发件服务器: {getattr(settings, 'EMAIL_HOST', '未知')}:{getattr(settings, 'EMAIL_PORT', '未知')}
-- 使用TLS: {getattr(settings, 'EMAIL_USE_TLS', '未知')}
+- 发件服务器: {host}:{port}
+- 使用TLS: {use_tls}
 
 ---
 家庭日报系统
@@ -222,7 +240,7 @@ def celery_send_test_email(self, test_mode=True):
 任务ID: {task_id}
 
 这是一封测试邮件，用于验证Celery异步邮件发送功能。
-            "
+            ""
 
         # 创建邮件
         email = EmailMessage(
@@ -230,6 +248,7 @@ def celery_send_test_email(self, test_mode=True):
             body=body,
             from_email=from_email,
             to=recipient_list,
+            connection=backend
         )
         email.content_subtype = 'plain'
         email.encoding = 'utf-8'
@@ -294,17 +313,27 @@ def celery_send_html_report_email(self, include_attachment=False):
     logger.info(f"[任务 {task_id}] 开始执行HTML报告邮件发送任务")
 
     try:
-        # 获取邮件配置
-        from_email = getattr(settings, 'EMAIL_HOST_USER', None)
+        # 从数据库获取邮件配置
+        from core.models import SystemConfig
+        from django.core.mail.backends.smtp import EmailBackend
+        config = SystemConfig.get_config()
+        from_email = config.smtp_username
         if not from_email:
             raise ValueError("未配置发件邮箱")
 
-        to_email = getattr(settings, 'EMAIL_HOST_USER', from_email)
+        to_email = config.recipient_email or from_email
         if isinstance(to_email, list):
             recipient_list = to_email
         else:
             recipient_list = [to_email]
 
+        # 获取SMTP配置
+        host = config.smtp_server or 'localhost'
+        port = config.smtp_port or 587
+        username = config.smtp_username or ''
+        password = config.smtp_password or ''
+        use_tls = True  # 默认使用TLS
+
         # 准备报告数据
         today = timezone.now().date()
         yesterday = today - timedelta(days=1)
@@ -374,6 +403,16 @@ def celery_send_html_report_email(self, include_attachment=False):
 </html>
         """
 
+        # 创建邮件后端
+        backend = EmailBackend(
+            host=host,
+            port=port,
+            username=username,
+            password=password,
+            use_tls=use_tls,
+            fail_silently=False
+        )
+
         # 创建邮件
         subject = f"[Celery] 家庭日报 {report_data['today']} - 测试报告"
         
@@ -382,6 +421,7 @@ def celery_send_html_report_email(self, include_attachment=False):
             body=html_content,
             from_email=from_email,
             to=recipient_list,
+            connection=backend
         )
         email.attach_alternative(html_content, "text/html")
         email.encoding = 'utf-8'
@@ -525,9 +565,34 @@ def main():
         from django.conf import settings
         from django.core.mail import EmailMessage
         from django.utils import timezone
+        from core.models import SystemConfig
+        from django.core.mail.backends.smtp import EmailBackend
 
-        from_email = getattr(settings, 'EMAIL_HOST_USER', None)
-        to_email = getattr(settings, 'EMAIL_HOST_USER', from_email)
+        # 从数据库获取邮件配置
+        config = SystemConfig.get_config()
+        from_email = config.smtp_username
+        if not from_email:
+            raise ValueError("未配置发件邮箱")
+
+        to_email = config.recipient_email or from_email
+        recipient_list = [to_email] if isinstance(to_email, str) else to_email
+
+        # 获取SMTP配置
+        host = config.smtp_server or 'localhost'
+        port = config.smtp_port or 587
+        username = config.smtp_username or ''
+        password = config.smtp_password or ''
+        use_tls = True  # 默认使用TLS
+
+        # 创建邮件后端
+        backend = EmailBackend(
+            host=host,
+            port=port,
+            username=username,
+            password=password,
+            use_tls=use_tls,
+            fail_silently=False
+        )
 
         subject = f"[直接测试] Celery邮件测试 - {timezone.now().strftime('%H:%M:%S')}"
         body = f"""
@@ -547,7 +612,8 @@ def main():
             subject=subject,
             body=body,
             from_email=from_email,
-            to=[to_email] if isinstance(to_email, str) else to_email,
+            to=recipient_list,
+            connection=backend
         )
         sent = email.send(fail_silently=False)