<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id$
/**
+------------------------------------------------------------------------------
* 文件上传类
+------------------------------------------------------------------------------
* @category ORG
* @package ORG
* @subpackage Net
* @author liu21st <liu21st@gmail.com>
* @version $Id$
+------------------------------------------------------------------------------
*/
class UploadFile extends Think
{//类定义开始
// 上传文件的最大值
public $maxSize = -1;
// 是否支持多文件上传
public $supportMulti = true;
// 允许上传的文件后缀
// 留空不作后缀检查
public $allowExts = array();
// 允许上传的文件类型
// 留空不做检查
public $allowTypes = array();
// 使用对上传图片进行缩略图处理
public $thumb = false;
// 图库类包路径
public $imageClassPath = 'ORG.Util.Image';
// 缩略图最大宽度
public $thumbMaxWidth;
// 缩略图最大高度
public $thumbMaxHeight;
// 缩略图前缀
public $thumbPrefix = 'thumb_';
public $thumbSuffix = '';
// 缩略图保存路径
public $thumbPath = '';
// 缩略图文件名
public $thumbFile = '';
// 是否移除原图
public $thumbRemoveOrigin = true;
// 压缩图片文件上传
public $zipImages = false;
// 启用子目录保存文件
public $autoSub = false;
// 子目录创建方式 可以使用hash date
public $subType = 'hash';
public $dateFormat = 'Ymd';
public $hashLevel = 1; // hash的目录层次
// 上传文件保存路径
public $savePath = '';
public $autoCheck = true; // 是否自动检查附件
// 存在同名是否覆盖
public $uploadReplace = false;
// 上传文件命名规则
// 例如可以是 time uniqid com_create_guid 等
// 必须是一个无需任何参数的函数名 可以使用自定义函数
public $saveRule = '';
// 上传文件Hash规则函数名
// 例如可以是 md5_file sha1_file 等
public $hashType = 'md5_file';
// 错误信息
private $error = '';
// 上传成功的文件信息
private $uploadFileInfo ;
/**
+----------------------------------------------------------
* 架构函数
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
*/
public function __construct($maxSize='',$allowExts='',$allowTypes='',$savePath='',$saveRule='')
{
if(!empty($maxSize) && is_numeric($maxSize)) {
$this->maxSize = $maxSize;
}
if(!empty($allowExts)) {
if(is_array($allowExts)) {
$this->allowExts = array_map('strtolower',$allowExts);
}else {
$this->allowExts = explode(',',strtolower($allowExts));
}
}
if(!empty($allowTypes)) {
if(is_array($allowTypes)) {
$this->allowTypes = array_map('strtolower',$allowTypes);
}else {
$this->allowTypes = explode(',',strtolower($allowTypes));
}
}
if(!empty($saveRule)) {
$this->saveRule = $saveRule;
}else{
$this->saveRule = C('UPLOAD_FILE_RULE');
}
$this->savePath = $savePath;
}
/**
+----------------------------------------------------------
* 上传一个文件
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param mixed $name 数据
* @param string $value 数据表名
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
private function save($file)
{
$filename = $file['savepath'].$file['savename'];
if(!$this->uploadReplace && is_file($filename)) {
// 不覆盖同名文件
$this->error = '文件已经存在！'.$filename;
return false;
}
// 如果是图像文件 检测文件格式
if( in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png','swf')) && false === getimagesize($file['tmp_name'])) {
$this->error = '非法图像文件';
return false;
}
if(in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png')) && getimagesize($file['tmp_name'])) {
$tmp_imagesize = @getimagesize($file['tmp_name']);
list($tmp_width, $tmp_height, $tmp_type) = (array)$tmp_imagesize;
$tmp_size = $tmp_width * $tmp_height;
if($tmp_size > 16777216 || $tmp_size < 4 || empty($tmp_type) || strpos($tmp_imagesize['mime'], 'flash') > 0) {
@unli
$this->error = '非法图像文件';
return false;
}
}
if(!move_uploaded_file($file['tmp_name'], auto_charset($filename,'utf-8','gbk'))) {
$this->error = '文件上传保存错误！';
return false;
}
if($this->thumb && in_array(strtolower($file['extension']),array('gif','jpg','jpeg','bmp','png'))) {
$image = getimagesize($filename);
if(false !== $image) {
//是图像文件生成缩略图
$thumbWidth = explode(',',$this->thumbMaxWidth);
$thumbHeight = explode(',',$this->thumbMaxHeight);
$thumbPrefix = explode(',',$this->thumbPrefix);
$thumbSuffix = explode(',',$this->thumbSuffix);
$thumbFile = explode(',',$this->thumbFile);
$thumbPath = $this->thumbPath?$this->thumbPath:$file['savepath'];
// 生成图像缩略图
import($this->imageClassPath);
$realFilename = $this->autoSub?ba
for($i=0,$len=count($thumbWidth); $i<$len; $i++) {
$thumbname = $thumbPath.$thumbPrefix[$i].substr($realFilename,0,strrpos($realFilename, '.')).$thumbSuffix[$i].'.'.$file['extension'];
Image::thumb($filename,$thumbname,'',$thumbWidth[$i],$thumbHeight[$i],true);
}
if($this->thumbRemoveOrigin) {
// 生成缩略图之后删除原图
unli
}
}
}
if($this->zipImags) {
// TODO 对图片压缩包在线解压
}
return true;
}
/**
+----------------------------------------------------------
* 上传所有文件
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $savePath 上传文件保存路径
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
public function upload($savePath ='')
{
//如果不指定保存文件名，则由系统默认
if(empty($savePath))
$savePath = $this->savePath;
// 检查上传目录
if(!is_dir($savePath)) {
// 检查目录是否编码后的
if(is_dir(ba
$savePath = ba
}else{
// 尝试创建目录
if(!mkdir($savePath)){
$this->error = '上传目录'.$savePath.'不存在';
return false;
}
}
}else {
if(!is_writeable($savePath)) {
$this->error = '上传目录'.$savePath.'不可写';
return false;
}
}
$fileInfo = array();
$isUpload = false;
// 获取上传的文件信息
// 对$_FILES数组信息处理
$files = $this->dealFiles($_FILES);
foreach($files as $key => $file) {
//过滤无效的上传
if(!empty($file['name'])) {
//登记上传文件的扩展信息
$file['key'] = $key;
$file['extension'] = strtolower($this->getExt($file['name']));
$file['savepath'] = $savePath;
$file['savename'] = strtolower($this->getSaveName($file));
// 自动检查附件
if($this->autoCheck) {
if(!$this->check($file))
return false;
}
//保存上传文件
if(!$this->save($file)) return false;
if(function_exists($this->hashType)) {
$fun = $this->hashType;
$file['hash'] = $fun(auto_charset($file['savepath'].$file['savename'],'utf-8','gbk'));
}
//上传成功后保存文件信息，供其他地方调用
unset($file['tmp_name'],$file['error']);
$fileInfo[] = $file;
$isUpload = true;
}
}
if($isUpload) {
$this->uploadFileInfo = $fileInfo;
return true;
}else {
$this->error = '没有选择上传文件';
return false;
}
}
/**
+----------------------------------------------------------
* 上传单个上传字段中的文件 支持多附件
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param array $file 上传文件信息
* @param string $savePath 上传文件保存路径
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
public function uploadOne($file,$savePath=''){
//如果不指定保存文件名，则由系统默认
if(empty($savePath))
$savePath = $this->savePath;
// 检查上传目录
if(!is_dir($savePath)) {
// 尝试创建目录
if(!mk_dir($savePath)){
$this->error = '上传目录'.$savePath.'不存在';
return false;
}
}else {
if(!is_writeable($savePath)) {
$this->error = '上传目录'.$savePath.'不可写';
return false;
}
}
//过滤无效的上传
if(!empty($file['name'])) {
$fileArray = array();
if(is_array($file['name'])) {
$keys = array_keys($file);
$count = count($file['name']);
for ($i=0; $i<$count; $i++) {
foreach ($keys as $key)
$fileArray[$i][$key] = $file[$key][$i];
}
}else{
$fileArray[] = $file;
}
$info = array();
foreach ($fileArray as $key=>$file){
//登记上传文件的扩展信息
$file['extension'] = $this->getExt($file['name']);
$file['savepath'] = $savePath;
$file['savename'] = $this->getSaveName($file);
// 自动检查附件
if($this->autoCheck) {
if(!$this->check($file))
return false;
}
//保存上传文件
if(!$this->save($file)) return false;
if(function_exists($this->hashType)) {
$fun = $this->hashType;
$file['hash'] = $fun(auto_charset($file['savepath'].$file['savename'],'utf-8','gbk'));
}
unset($file['tmp_name'],$file['error']);
$info[] = $file;
}
// 返回上传的文件信息
return $info;
}else {
$this->error = '没有选择上传文件';
return false;
}
}
/**
+----------------------------------------------------------
* 转换上传文件数组变量为正确的方式
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param array $files 上传的文件变量
+----------------------------------------------------------
* @return array
+----------------------------------------------------------
*/
private function dealFiles($files) {
$fileArray = array();
$n = 0;
foreach ($files as $file){
if(is_array($file['name'])) {
$keys = array_keys($file);
$count = count($file['name']);
for ($i=0; $i<$count; $i++) {
foreach ($keys as $key)
$fileArray[$n][$key] = $file[$key][$i];
$n++;
}
}else{
$fileArray[$n] = $file;
$n++;
}
}
return $fileArray;
}
/**
+----------------------------------------------------------
* 获取错误代码信息
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $errorNo 错误号码
+----------------------------------------------------------
* @return void
+----------------------------------------------------------
* @throws ThinkExecption
+----------------------------------------------------------
*/
protected function error($errorNo)
{
switch($errorNo) {
case 1:
$this->error = '上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值';
break;
case 2:
$this->error = '上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值';
break;
case 3:
$this->error = '文件只有部分被上传';
break;
case 4:
$this->error = '没有文件被上传';
break;
case 6:
$this->error = '找不到临时文件夹';
break;
case 7:
$this->error = '文件写入失败';
break;
default:
$this->error = '未知上传错误！';
}
return ;
}
/**
+----------------------------------------------------------
* 根据上传文件命名规则取得保存文件名
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $filename 数据
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
private function getSaveName($filename)
{
$rule = $this->saveRule;
if(empty($rule)) {//没有定义命名规则，则保持文件名不变
$saveName = $filename['name'];
}else {
if(function_exists($rule)) {
//使用函数生成一个唯一文件标识号
$saveName = $rule().".".$filename['extension'];
}else {
//使用给定的文件名作为标识号
$saveName = $rule.".".$filename['extension'];
}
}
if($this->autoSub) {
// 使用子目录保存文件
$filename['savename'] = $saveName;
$saveName = $this->getSubName($filename).'/'.$saveName;
}
return $saveName;
}
/**
+----------------------------------------------------------
* 获取子目录的名称
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param array $file 上传的文件信息
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
private function getSubName($file)
{
switch($this->subType) {
case 'date':
$dir = date($this->dateFormat,time());
break;
case 'hash':
default:
$name = md5($file['savename']);
$dir = '';
for($i=0;$i<$this->hashLevel;$i++) {
$dir .= $name{$i}.'/';
}
break;
}
if(!is_dir($file['savepath'].$dir)) {
mk_dir($file['savepath'].$dir);
}
return $dir;
}
/**
+----------------------------------------------------------
* 检查上传的文件
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param array $file 文件信息
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function check($file) {
if($file['error']!== 0) {
//文件上传失败
//捕获错误代码
$this->error($file['error']);
return false;
}
//文件上传成功，进行自定义规则检查
//检查文件大小
if(!$this->checkSize($file['size'])) {
$this->error = '上传文件大小不符！';
return false;
}
//检查文件Mime类型
if(!$this->checkType($file['type'])) {
$this->error = '上传文件MIME类型不允许！';
return false;
}
//检查文件类型
if(!$this->checkExt($file['extension'])) {
$this->error ='上传文件类型不允许';
return false;
}
//检查是否合法上传
if(!$this->checkUpload($file['tmp_name'])) {
$this->error = '非法上传文件！';
return false;
}
return true;
}
/**
+----------------------------------------------------------
* 检查上传的文件类型是否合法
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $type 数据
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkType($type)
{
if(!empty($this->allowTypes))
return in_array(strtolower($type),$this->allowTypes);
return true;
}
/**
+----------------------------------------------------------
* 检查上传的文件后缀是否合法
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $ext 后缀名
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkExt($ext)
{
if(!empty($this->allowExts))
return in_array(strtolower($ext),$this->allowExts,true);
return true;
}
/**
+----------------------------------------------------------
* 检查文件大小是否合法
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param integer $size 数据
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkSize($size)
{
return !($size > $this->maxSize) || (-1 == $this->maxSize);
}
/**
+----------------------------------------------------------
* 检查文件是否非法提交
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $filename 文件名
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function checkUpload($filename)
{
return is_uploaded_file($filename);
}
/**
+----------------------------------------------------------
* 取得上传文件的后缀
+----------------------------------------------------------
* @access private
+----------------------------------------------------------
* @param string $filename 文件名
+----------------------------------------------------------
* @return boolean
+----------------------------------------------------------
*/
private function getExt($filename)
{
$pathinfo = pathinfo($filename);
return $pathinfo['extension'];
}
/**
+----------------------------------------------------------
* 取得上传文件的信息
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @return array
+----------------------------------------------------------
*/
public function getUploadFileInfo()
{
return $this->uploadFileInfo;
}
/**
+----------------------------------------------------------
* 取得最后一次错误信息
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
public function getErrorMsg()
{
return $this->error;
}
}//类定义结束
?>
请问下我用的UploadFile.class.php上传新文件不会删除以前的文件就会产生很多垃圾文件请问下各位大神怎么修改呢？
最佳答案
