Initial commit: 日记系统

完整的日记记录系统
- Django 后端 (diary app)
- 前端页面
- 部署脚本 (本地 + 云端)
- Nginx 配置
- 数据迁移和同步工具

backend/diary_system/__init__.py

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+# Diary System Project

backend/diary_system/settings.py

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+"""
+Django settings for diary_system project.
+"""
+
+from pathlib import Path
+import os
+
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+SECRET_KEY = 'django-insecure-diary-system-secret-key-change-in-production'
+
+DEBUG = os.environ.get('DEBUG', 'True').lower() == 'true'
+
+ALLOWED_HOSTS = os.environ.get('ALLOWED_HOSTS', '*').split(',')
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+    'rest_framework',
+    'corsheaders',
+    'diary',
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'corsheaders.middleware.CorsMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+]
+
+ROOT_URLCONF = 'diary_system.urls'
+
+TEMPLATES = [
+    {
+        'BACKEND': 'django.template.backends.django.DjangoTemplates',
+        'DIRS': [],
+        'APP_DIRS': True,
+        'OPTIONS': {
+            'context_processors': [
+                'django.template.context_processors.debug',
+                'django.template.context_processors.request',
+                'django.contrib.auth.context_processors.auth',
+                'django.contrib.messages.context_processors.messages',
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = 'diary_system.wsgi.application'
+
+# 数据库配置 - 云服务器使用 SQLite，本地使用 PostgreSQL
+if os.path.exists('/home/ubuntu/diary-system'):
+    # 云服务器配置 - SQLite
+    DATABASES = {
+        'default': {
+            'ENGINE': 'django.db.backends.sqlite3',
+            'NAME': BASE_DIR / 'db.sqlite3',
+        }
+    }
+else:
+    # 本地配置 - PostgreSQL
+    DATABASES = {
+        'default': {
+            'ENGINE': 'django.db.backends.postgresql',
+            'NAME': os.environ.get('DB_NAME', 'cssc'),
+            'USER': os.environ.get('DB_USER', 'coder'),
+            'PASSWORD': os.environ.get('DB_PASSWORD', '825670wl'),
+            'HOST': os.environ.get('DB_HOST', '10.2.0.100'),
+            'PORT': os.environ.get('DB_PORT', '5432'),
+        }
+    }
+
+AUTH_PASSWORD_VALIDATORS = [
+    {'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator'},
+    {'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator'},
+    {'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator'},
+    {'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator'},
+]
+
+LANGUAGE_CODE = 'zh-hans'
+TIME_ZONE = 'UTC'
+USE_I18N = True
+USE_TZ = True
+
+STATIC_URL = 'static/'
+STATIC_ROOT = os.path.join(BASE_DIR, 'static')
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+
+CORS_ALLOW_ALL_ORIGINS = True
+
+REST_FRAMEWORK = {
+    'DEFAULT_PERMISSION_CLASSES': [
+        'rest_framework.permissions.AllowAny',
+    ]
+}

backend/diary_system/urls.py

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+"""
+URL configuration for diary_system project.
+"""
+from django.contrib import admin
+from django.urls import path, include
+
+urlpatterns = [
+    path('admin/', admin.site.urls),
+    path('api/', include('diary.urls')),
+]

backend/diary_system/wsgi.py

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+"""
+WSGI config for diary_system project.
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'diary_system.settings')
+
+application = get_wsgi_application()