nginx实现仅能移动端企微访问到报表

#user  root root;                                                             
worker_processes  1;                                                        
events {                                                                     
    worker_connections  1024;                                                
}                                                                            
http {
    include  mime.types;
    default_type application/octet-stream;
    sendfile  on;
    keepalive_timeout 65;
    server {
    listen       80;
    server_name  localhost;
    #charset koi8-r;
       
    resolver 8.8.8.8;
    location /  {
			set $flag 0;
          if ($http_user_agent ~* "wxwork")
          {
            set $flag 1;
          }
           if ($uri ~* ^(.*)/(config|config.jsp|index.jsp|login.jsp|createresource.jsp|openmodule.jsp|sysmonitor.jsp)$){
            set $flag 0; 
          }
          if ($flag != 1)
          {
            return 404;
          }
		  set $flag1 0;
          if ($http_user_agent ~* "Mobile")
          {
            set $flag1 1;
          }
		  if ($flag1 != 1)
          {
            return 404;
          }
            proxy_pass         http://10.10.202.17:19000/;
            proxy_set_header   Host             $http_host;
            proxy_set_header   X-Real-IP        $remote_addr;
            proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
            client_max_body_size 100m;
            client_body_buffer_size 128k;
            proxy_connect_timeout 90;
            proxy_send_timeout 300;
            proxy_read_timeout 300;
            proxy_buffer_size 4k;
            proxy_buffers 4 32k;
            proxy_busy_buffers_size 64k;
            proxy_temp_file_write_size 64k;
        }
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   html;
    }
    }
}