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163 lines
4.6 KiB
163 lines
4.6 KiB
<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: 麦当苗儿 <zuojiazi@vip.qq.com> <http://www.zjzit.cn>
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// +----------------------------------------------------------------------
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namespace Think\Upload\Driver;
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class Ftp {
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/**
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* 上传文件根目录
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* @var string
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*/
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private $rootPath;
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/**
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* 本地上传错误信息
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* @var string
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*/
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private $error = ''; //上传错误信息
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/**
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* FTP连接
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* @var resource
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*/
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private $link;
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private $config = array(
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'host' => '', //服务器
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'port' => 21, //端口
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'timeout' => 90, //超时时间
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'username' => '', //用户名
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'password' => '', //密码
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);
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/**
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* 构造函数，用于设置上传根路径
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* @param array $config FTP配置
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*/
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public function __construct($config){
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/* 默认FTP配置 */
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$this->config = array_merge($this->config, $config);
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/* 登录FTP服务器 */
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if(!$this->login()){
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E($this->error);
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}
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}
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/**
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* 检测上传根目录
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* @param string $rootpath 根目录
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* @return boolean true-检测通过，false-检测失败
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*/
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public function checkRootPath($rootpath){
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/* 设置根目录 */
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$this->rootPath = ftp_pwd($this->link) . '/' . ltrim($rootpath, '/');
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if(!@ftp_chdir($this->link, $this->rootPath)){
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$this->error = '上传根目录不存在！';
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return false;
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}
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return true;
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}
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/**
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* 检测上传目录
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* @param string $savepath 上传目录
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* @return boolean 检测结果，true-通过，false-失败
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*/
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public function checkSavePath($savepath){
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/* 检测并创建目录 */
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if (!$this->mkdir($savepath)) {
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return false;
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} else {
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//TODO:检测目录是否可写
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return true;
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}
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}
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/**
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* 保存指定文件
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* @param array $file 保存的文件信息
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* @param boolean $replace 同名文件是否覆盖
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* @return boolean 保存状态，true-成功，false-失败
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*/
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public function save($file, $replace=true) {
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$filename = $this->rootPath . $file['savepath'] . $file['savename'];
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/* 不覆盖同名文件 */
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// if (!$replace && is_file($filename)) {
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// $this->error = '存在同名文件' . $file['savename'];
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// return false;
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// }
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/* 移动文件 */
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if (!ftp_put($this->link, $filename, $file['tmp_name'], FTP_BINARY)) {
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$this->error = '文件上传保存错误！';
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return false;
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}
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return true;
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}
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/**
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* 创建目录
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* @param string $savepath 要创建的穆里
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* @return boolean 创建状态，true-成功，false-失败
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*/
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public function mkdir($savepath){
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$dir = $this->rootPath . $savepath;
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if(ftp_chdir($this->link, $dir)){
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return true;
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}
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if(ftp_mkdir($this->link, $dir)){
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return true;
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} elseif($this->mkdir(dirname($savepath)) && ftp_mkdir($this->link, $dir)) {
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return true;
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} else {
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$this->error = "目录 {$savepath} 创建失败！";
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return false;
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}
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}
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/**
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* 获取最后一次上传错误信息
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* @return string 错误信息
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*/
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public function getError(){
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return $this->error;
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}
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/**
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* 登录到FTP服务器
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* @return boolean true-登录成功，false-登录失败
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*/
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private function login(){
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extract($this->config);
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$this->link = ftp_connect($host, $port, $timeout);
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if($this->link) {
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if (ftp_login($this->link, $username, $password)) {
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return true;
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} else {
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$this->error = "无法登录到FTP服务器：username - {$username}";
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}
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} else {
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$this->error = "无法连接到FTP服务器：{$host}";
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}
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return false;
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}
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/**
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* 析构方法，用于断开当前FTP连接
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*/
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public function __destruct() {
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ftp_close($this->link);
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}
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}
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