nginx 配置auth basic使matomo访问统计接口

nginx 配置auth basic使matomo访问统计接口,有时候我们A目录下有一些php程序，A目录下还有一个B文件夹，但是我们需要让外部访问B文件夹的一些文件，该怎样做呢？
|/www/html
|___ /www/html/matomo

   server {
          listen 443;
          server_name www.example.com;
           root   /www/html;
            auth_basic "Please input password";
            auth_basic_user_file /usr/local/nginx/db/passwd.db;
            index  index.html index.htm index.php;

            location /matomo {
            #关闭顶级目录认证
            auth_basic off;          
            location = /matomo/piwik.js {
            #关闭piwik.js文件认证
            auth_basic off;
             }

            #解析matomo.php文件
            location = /matomo/matomo.php { 
            #关闭matomo.php文件认证
            auth_basic off;
            fastcgi_split_path_info ^(.+\.php)(/.+)$;
            fastcgi_pass 127.0.0.1:9001;
            include fastcgi_params;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
              }
             }

           location ~\.php$ {
           root /var/www/html/;
           fastcgi_index   index.php;
           fastcgi_pass    127.0.0.1:9001;
           include         fastcgi_params;
           fastcgi_param    SCRIPT_FILENAME        $document_root$fastcgi_script_name;
           }
        }