Home Backend Development PHP Tutorial 使用PHP如何实现高效安全的ftp服务器(一)_PHP

使用PHP如何实现高效安全的ftp服务器(一)_PHP

May 29, 2016 am 11:47 AM

FTP服务器(File Transfer Protocol Server)是在互联网上提供文件存储和访问服务的计算机,它们依照FTP协议提供服务。 FTP是File Transfer Protocol(文件传输协议)。顾名思义,就是专门用来传输文件的协议。简单地说,支持FTP协议的服务器就是FTP服务器。

摘要:

    本文主要阐述使用PHP的swoole扩展实现ftp服务器,同时扩展ftp服务器个性化功能和安全性。真正实现一个自己完全掌控的ftp服务器,可以个性化定制的ftp服务器。

正文:

  FTP服务器想必大家都不陌生,使用起来,现成的软件也很多。不过免费的软件功能有时候并不符合自己需求,又无法二次开发,付费软件价格又比较高昂。PHP的swoole扩展,是PHP语言的高性能网络通信框架,提供了PHP语言的异步多线程服务器,异步TCP/UDP网络客户端,异步MySQL,数据库连接池,AsyncTask,消息队列,毫秒定时器,异步文件读写,异步DNS查询。

  Swoole可以广泛应用于互联网、移动通信、企业软件、网络游戏、物联网、车联网、智能家庭等领域。 使用PHP+Swoole作为网络通信框架,可以使企业IT研发团队的效率大大提升,更加专注于开发创新产品。

   Swoole底层内置了异步非阻塞、多线程的网络IO服务器。PHP程序员仅需处理事件回调即可,无需关心底层。与Nginx/Tornado/Node.js等全异步的框架不同,Swoole既支持全异步,也支持同步。

  有了这个基础,基于TCP/IP协议的服务器开发就变得容易了。或许大家会问,C#等其他语言同样可以实现啊,为什么用PHP呢?我想主要考虑的还是开发效率。PHP是无需编译的脚本语言,开发部署速度快。

  无需赘言,这里列出步骤:

  00  准备平台,我这里使用的CentOS7;

  01  安装php和swoole扩展,请参考http://wiki.swoole.com/wiki/page/6.html;

  02  设置字符集,由于ftp处理文件名容易出现乱码,建议将操作系统的字符集设置成GB18030,这样与Windows保持一致,目前大部分ftp客户端虽然也支持utf8文件名编码,但是,使用起来比不如意。如何好的解决方案请不吝告知,非常感谢;

  03  开始编写php程序,测试php程序;

  04  部署php版的ftp服务器。

  本文要实现ftp服务器的功能目标有:

   * 用户,组管理;
  * 密码自助修改与重置;
  * 文件夹权限管理;
  * IP访问控制;
  * 在线用户查看;
  * 磁盘空间使用查看;
  * SSL支持,保护密码及文件的传输安全;
  * 内置web管理页面,方便进行远程管理。  

项目目录:  

FtpServer    
|    
+-conf    

|    
|  
+-config.php  //FTP配置文件    
|  
+-ssl.crt    //ssl证书    
|  
+-ssl.key    //ssl密钥    
|    
+-inc    
|  
|    
|  
+-CSmtp.php     //smtp发邮件类,用于FTP密码发送和重置    
|  
+-ShareMemory.php //共享内存操作类    
|  
+-User.php     //用户管理、文件权限管理、IP访问控制    
|    
+-logs  //日志文件    
|    
+-reference //参考文档    
|    
+-web    
|  
|    
|  
+-wwwroot    //FTP Web管理网站    
|  
+-CWebServer.php //FTP内置http服务器    
|    
+-CFtpServer.php  //FTP服务器主程序    
+-MyFtpServer.php  //FTP入口程序 

此篇文章先给大家介绍到这里,后续还会持续更新。

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

Describe the SOLID principles and how they apply to PHP development. Describe the SOLID principles and how they apply to PHP development. Apr 03, 2025 am 12:04 AM

The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.

How to automatically set permissions of unixsocket after system restart? How to automatically set permissions of unixsocket after system restart? Mar 31, 2025 pm 11:54 PM

How to automatically set the permissions of unixsocket after the system restarts. Every time the system restarts, we need to execute the following command to modify the permissions of unixsocket: sudo...

How to debug CLI mode in PHPStorm? How to debug CLI mode in PHPStorm? Apr 01, 2025 pm 02:57 PM

How to debug CLI mode in PHPStorm? When developing with PHPStorm, sometimes we need to debug PHP in command line interface (CLI) mode...

Explain the concept of late static binding in PHP. Explain the concept of late static binding in PHP. Mar 21, 2025 pm 01:33 PM

Article discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo

How to send a POST request containing JSON data using PHP's cURL library? How to send a POST request containing JSON data using PHP's cURL library? Apr 01, 2025 pm 03:12 PM

Sending JSON data using PHP's cURL library In PHP development, it is often necessary to interact with external APIs. One of the common ways is to use cURL library to send POST�...

Framework Security Features: Protecting against vulnerabilities. Framework Security Features: Protecting against vulnerabilities. Mar 28, 2025 pm 05:11 PM

Article discusses essential security features in frameworks to protect against vulnerabilities, including input validation, authentication, and regular updates.

See all articles