# 禁止目录列表
Options -Indexes

# 安全响应头
<IfModule mod_headers.c>
    Header always set X-Content-Type-Options "nosniff"
    Header always set X-Frame-Options "SAMEORIGIN"
    Header always set X-XSS-Protection "1; mode=block"
    Header always set Referrer-Policy "strict-origin-when-cross-origin"
</IfModule>

# ========== Gzip 压缩 ==========
<IfModule mod_deflate.c>
    AddOutputFilterByType DEFLATE text/html text/plain text/css text/xml text/javascript
    AddOutputFilterByType DEFLATE application/javascript application/json application/xml
    AddOutputFilterByType DEFLATE application/xhtml+xml application/rss+xml
    AddOutputFilterByType DEFLATE image/svg+xml
</IfModule>

# ========== 浏览器缓存 ==========
<IfModule mod_expires.c>
    ExpiresActive On
    # 图片：30天
    ExpiresByType image/jpeg "access plus 30 days"
    ExpiresByType image/png "access plus 30 days"
    ExpiresByType image/gif "access plus 30 days"
    ExpiresByType image/webp "access plus 30 days"
    ExpiresByType image/svg+xml "access plus 30 days"
    # CSS/JS：7天（通过 ?v= 版本号控制更新）
    ExpiresByType text/css "access plus 7 days"
    ExpiresByType application/javascript "access plus 7 days"
    # JSON：5分钟（CMS内容需要较快更新）
    ExpiresByType application/json "access plus 5 minutes"
    # HTML：不缓存
    ExpiresByType text/html "access plus 0 seconds"
</IfModule>

# 静态资源 Cache-Control 补充
<IfModule mod_headers.c>
    <FilesMatch "\.(jpg|jpeg|png|gif|webp|svg|ico)$">
        Header set Cache-Control "public, max-age=2592000, immutable"
    </FilesMatch>
    <FilesMatch "\.(css|js)$">
        Header set Cache-Control "public, max-age=604800"
    </FilesMatch>
</IfModule>

# 启用 ETags
FileETag MTime Size

# 阻止访问隐藏文件（以.开头的文件，如 .htaccess, .git 等）
<FilesMatch "^\.">
    Require all denied
</FilesMatch>

# 阻止访问 zip/sql/log/bak 等敏感文件
<FilesMatch "\.(zip|sql|log|bak|tmp|env|ini)$">
    Require all denied
</FilesMatch>

# 强制 HTTPS（取消注释以启用）
# <IfModule mod_rewrite.c>
#     RewriteEngine On
#     RewriteCond %{HTTPS} off
#     RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
# </IfModule>
