# 梦回高句丽 - ggl.xi.plus 域名配置
# 适用于宝塔面板 Nginx 配置

# HTTP 重定向到 HTTPS
server {
    listen 80;
    server_name ggl.xi.plus www.ggl.xi.plus;
    return 301 https://ggl.xi.plus$request_uri;
}

# HTTPS 主配置
server {
    listen 443 ssl http2;
    server_name ggl.xi.plus www.ggl.xi.plus;
    
    # 网站根目录
    root /www/wwwroot/ggl/dist;
    index index.html index.htm;
    
    # SSL 证书配置 (宝塔面板自动管理)
    # ssl_certificate /www/server/panel/vhost/cert/ggl.xi.plus/fullchain.pem;
    # ssl_certificate_key /www/server/panel/vhost/cert/ggl.xi.plus/privkey.pem;
    
    # SSL 安全配置
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;
    
    # 安全头配置
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    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:; media-src 'self' https:;" always;
    
    # Gzip 压缩配置
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    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;
    
    # 静态资源缓存配置
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot|webp)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        add_header Vary "Accept-Encoding";
        access_log off;
        
        # 跨域配置
        add_header Access-Control-Allow-Origin "https://ggl.xi.plus";
        add_header Access-Control-Allow-Methods "GET, OPTIONS";
        add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept";
    }
    
    # API 请求代理到后端 Node.js 服务
    location /api/ {
        proxy_pass http://127.0.0.1:4003;
        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;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Port $server_port;
        
        # 超时配置
        proxy_connect_timeout 30s;
        proxy_read_timeout 60s;
        proxy_send_timeout 30s;
        
        # WebSocket 支持
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        
        # 缓冲配置
        proxy_buffering on;
        proxy_buffer_size 4k;
        proxy_buffers 8 4k;
        
        # 错误处理
        proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
    }
    
    # uploads 目录代理到后端
    location /uploads/ {
        proxy_pass http://127.0.0.1:4003;
        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;
        
        # 文件上传大小限制
        client_max_body_size 100M;
        
        # 缓存配置
        expires 30d;
        add_header Cache-Control "public";
    }
    
    # 健康检查端点
    location /health {
        proxy_pass http://127.0.0.1:4003/health;
        access_log off;
    }
    
    # 前端路由处理 - 所有其他请求返回 index.html (SPA)
    location / {
        try_files $uri $uri/ /index.html;
        
        # HTML 文件不缓存
        location ~* \.html$ {
            expires -1;
            add_header Cache-Control "no-cache, no-store, must-revalidate";
            add_header Pragma "no-cache";
        }
    }
    
    # 禁止访问敏感文件
    location ~ ^/(\.|package\.json|package-lock\.json|\.env|\.git|node_modules|api/|database/) {
        return 404;
    }
    
    # robots.txt
    location = /robots.txt {
        add_header Content-Type text/plain;
        return 200 "User-agent: *\nDisallow: /api/\nDisallow: /uploads/\nSitemap: https://ggl.xi.plus/sitemap.xml\n";
    }
    
    # SSL 证书验证目录
    location /.well-known/ {
        root /www/wwwroot/ggl;
        allow all;
    }
    
    # 错误页面配置
    error_page 404 /index.html;
    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /www/wwwroot/ggl/dist;
    }
    
    # 日志配置
    access_log /www/wwwlogs/ggl.xi.plus.log combined;
    error_log /www/wwwlogs/ggl.xi.plus.error.log warn;
}

# 限制请求频率 (防止 DDoS)
limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;
limit_req_zone $binary_remote_addr zone=static:10m rate=30r/s;

# 应用限制到相应的 location
# 在 location /api/ 中添加: limit_req zone=api burst=20 nodelay;
# 在静态资源 location 中添加: limit_req zone=static burst=50 nodelay;