# Nginx配置文件 - 生产环境
# 用于Vue3前端静态文件服务和API代理

# HTTP服务器 - 重定向到HTTPS
server {
    listen 80;
    server_name anxin.com www.anxin.com;
    
    # 强制重定向到HTTPS
    return 301 https://$server_name$request_uri;
}

# HTTPS服务器 - 主要配置
server {
    listen 443 ssl http2;
    server_name anxin.com www.anxin.com;
    
    # SSL配置
    ssl_certificate /etc/nginx/ssl/anxin.com.crt;
    ssl_certificate_key /etc/nginx/ssl/anxin.com.key;
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:50m;
    ssl_session_tickets off;
    
    # 现代SSL配置
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;
    
    # HSTS配置
    add_header Strict-Transport-Security "max-age=63072000" always;
    
    # 生产环境日志配置
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log error;
    
    # 安全头配置
    add_header X-Frame-Options DENY;
    add_header X-Content-Type-Options nosniff;
    add_header X-XSS-Protection "1; mode=block";
    add_header Referrer-Policy "strict-origin-when-cross-origin";
    add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self' data:; connect-src 'self' https://api.anxin.com;";
    
    # Gzip压缩配置
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/json
        application/javascript
        application/xml+rss
        application/atom+xml
        image/svg+xml;
    
    # 静态文件服务
    location / {
        root /usr/share/nginx/html;
        index index.html index.htm;
        try_files $uri $uri/ /index.html;
        
        # 生产环境缓存配置
        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
            expires 1y;
            add_header Cache-Control "public, immutable";
            access_log off;
        }
        
        location ~* \.(html)$ {
            expires 1h;
            add_header Cache-Control "public";
        }
    }
    
    # API代理到后端服务
    location /prod-api/ {
        proxy_pass http://anxin-backend:8080/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        
        # 生产环境代理配置
        proxy_connect_timeout 10s;
        proxy_send_timeout 10s;
        proxy_read_timeout 10s;
        proxy_buffering on;
        proxy_buffer_size 4k;
        proxy_buffers 8 4k;
        
        # 限制请求大小
        client_max_body_size 5m;
        
        # 代理缓存配置
        proxy_cache_bypass $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Upgrade $http_upgrade;
    }
    
    # 健康检查端点
    location /health {
        access_log off;
        return 200 "healthy\n";
        add_header Content-Type text/plain;
    }
    
    # 拒绝访问敏感文件
    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }
    
    location ~ ~$ {
        deny all;
        access_log off;
        log_not_found off;
    }
}