利用Nginx的Upload模块实现无限制的大文件上传

直接用php处理上传的劣势是，占用大量内存，长期占用php进程，上传文件大小受到多种条件限制。
 
首先编译nginx得编译进去upload模块，很简单。
 
vhost配置文件如下，避免了upload.php被用户直接访问，构造虚假上传信息影响服务器安全
 

server
{
    listen       80;
    server_name 1.server.xxx;
    index index.html index.htm index.php;
    root  /web/vhosts/1.server.xxx/www;
    
    location = /upload.php {
        client_body_timeout 9999s; //最大允许的上传时间
        client_max_body_size 300m; //最大上传大小
        upload_pass   @upload; 
        upload_store /web/vhosts/1.server.xxx/protected/runtime/files-tmp 1;
        upload_store_access user:r;

        upload_set_form_field $upload_field_name.name $upload_file_name;
        upload_set_form_field $upload_field_name.content_type $upload_content_type;
        upload_set_form_field $upload_field_name.path $upload_tmp_path;

        upload_cleanup 400-599;
        
        upload_pass_args on;
    }

    location @upload {
        fastcgi_next_upstream error timeout invalid_header http_500 http_503;
        fastcgi_pass  backend;
        fastcgi_index index.php;
        include fcgi.conf;
    }

    location ~ .*\.php?$
    {
        fastcgi_next_upstream error timeout invalid_header http_500 http_503;
        fastcgi_pass  backend;
        fastcgi_index index.php;
        include fcgi.conf;
    }
    
    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
    {
        expires      30d;
    }
    
    location ~ .*\.(js|css)?$
    {
        expires      12h;
    }
}