<?php
/**
* Filename: upload.php
* @abstract 文件上传处理类
*
* @copyright (c) 2012 www.yulonghu.com
* @author 范家鹏 fanjiapeng@126.com
* @version 3.0 - 2012.08.26
*/
error_reporting(0); //屏蔽所有错误信息
define('UPLOAD_FILE_EMPTY', 101); //上传的附件、文件为空
define('UPLOAD_FILE_ILLEGAL', 102); //上传文件非法
define('UPLOAD_FILE_POSTFIX_ILLEGAL', 103); //上传文件格式非法
define('UPLOAD_FILE_SIZE_ILLEGAL', 104); //上传文件大小非法
define('UPLOAD_FILE_FAILURE', 105); //上传文件失败
define('UPLOAD_FILE_SIZE_TOOSMALL', 106); //图片像素太小
define('UPLOAD_FILE_LAYER', 107); //分割文件名宽度超出范围
define('UPLOAD_FILE_CREATE_DIR', 108); //创建目录没有权限
class upload {
//默认配置
public $_config = array (
'path' => 'upload', //上传物理地址前缀
'fileType' => 'image', //类型为图片
'cutting' => FALSE, //是否需要切图
'cutWidth' => 0, //默认等比例缩微切割宽度
'cutHeight' => 0, //默认等比例缩微切割高度
'allowType' => array(1 => 'gif', 2 => 'jpeg',
3 => 'png', 6 => 'bmp'), //可以上传的图片类型
'checkType' => TRUE, //是否检查图片格式
'checkSize' => TRUE, //是否检查图片大小
'maxSize' => 5120000, //上传最大值, 单位字节
'autoDir' => TRUE, //默认开启目录自动分割, 只上传原图有效
'cutLayer' => 2 //目录分割, 文件名宽度
);
//getimagesize + $_FILES值
public $getData = '';
private $dir_sep = DIRECTORY_SEPARATOR;
//文件上传配置初始化
public function __construct ($config = array()) {
if ($config && is_array($config)) {
foreach ($this->_config as $k => $v) {
if (isset($config[$k])) {
$this->_config[$k] = $config[$k];
}
}
}
unset($config);
}
//文件原图上传
public function put($arr_files = array()) {
$this->getData = & $arr_files;
if(!isset($this->getData['tmp_name']) || !isset($this->getData['name']) || empty($this->getData['tmp_name']) || empty($this->getData['name'])) {
$this->halt(UPLOAD_FILE_EMPTY);
}
if(isset($this->getData['error']) && $this->getData['error']) {
$this->halt(UPLOAD_FILE_FAILURE);
}
if(isset($this->getData['cutLayer']) && ($this->getData['cutLayer'] > 32 || $this->getData['cutLayer'] < 2)) {
$this->halt(UPLOAD_FILE_FAILURE);
}
if(is_uploaded_file($this->getData['tmp_name'])) {
$this->checkSafe();
$this->createNewPath($this->_config['autoDir'], $this->_config['cutLayer']);
$this->createDir();
//图片或者文件都可以上传
return $this->doUpload() ? $this->getData : UPLOAD_FILE_FAILURE;
}
}
/**
* 文件上传开始
*
* @param <string> tmp_name
* @param <string> path, new_path
* @return <boolean>
*/
private function doUpload() {
if(move_uploaded_file($this->getData['tmp_name'], $this->getData['full_path'])) {
return TRUE;
}
return FALSE;
}
/**
* 判断上传文件大小是否合法
*
* @param <number> size文件大小值
* @return <boolean>
*/
private function checkSize() {
if($this->_config['checkSize'] && $this->getData['size'] > $this->_config['maxSize']) {
return FALSE;
}
return TRUE;
}
/**
* 取得文件名后缀
*
* @param <string> name
* @return <string> 返回后缀名称
*/
private function getPostfix() {
return strtolower(trim(substr(strrchr($this->getData['name'], '.'), 1, 10)));
}
/**
* 检查文件是否为规定上传类型
*
* @param <string> name
* @return <boolean>
*/
private function checkFormat() {
if($this->_config['checkType'] && !in_array($this->getPostfix(), $this->_config['allowType'])) {
return FALSE;
}
return TRUE;
}
/**
* 创建分隔目录
*
* @param <string> path配置目录, new_path完整目录
*/
private function createDir() {
if(!file_exists($path = dirname($this->getData['full_path']))) {
if(!@mkdir($path, 0777, TRUE)) {
return UPLOAD_FILE_CREATE_DIR;
}
}
}
/**
* $autoDir 如果为假, 目录分割功能关闭
*
* @param <string> new_name, new_dir, new_path
* @return <string> new_dir, new_path
*/
private function createNewPath($autoDir = TRUE, $cutLayer = 2) {
$time = time();
$this->getData['new_name'] = md5($time . rand(1, 100)). '.' . $this->getPostfix();
$this->getData['new_dir'] = $this->dir_sep;
if($autoDir) {
$this->getData['new_dir'] = date('Ym', $time). $this->dir_sep;
$this->getData['new_dir'] .= substr($this->getData['new_name'], 0, $cutLayer). $this->dir_sep;
}
$this->getData['full_path'] = $this->_config['path']. $this->dir_sep. $this->getData['new_dir'] . $this->getData['new_name'];
}
/**
* 图片有效性检测
*
* @param <string> fullPath 完整全路径地址
* @return <string> width图片宽度, height图片高度, img_type_number图片数字类型
*/
private function checkSafe() {
if(!$this->checkFormat()) {
$this->halt(UPLOAD_FILE_POSTFIX_ILLEGAL);
}
if(!$this->checkSize()) {
$this->halt(UPLOAD_FILE_SIZE_ILLEGAL);
}
$this->getImage();
}
/**
* 取得图片的长、宽、类型
*
* @param <string> fullPath 完整全路径地址
*/
private function getImage($fullPath = '') {
if ($this->_config['fileType'] == 'image') {
list($this->getData['width'], $this->getData['height'], $this->getData['img_type_number']) = getimagesize($fullPath ? $fullPath : $this->getData['tmp_name']);
if(!in_array($this->getData['img_type_number'], @array_keys($this->_config['allowType']))) {
$this->halt(UPLOAD_FILE_POSTFIX_ILLEGAL);
}
}
}
/**
* 生成等比例缩微图thumb
*
* @param <string> $oldFileName 原始文件名 201107/08/08b44de34eb6f5460f374f8bd418b9bd.gif
* @param <string> $newFileName 新文件名 201107/08/08b44de34eb6f5460f374f8bd418b9bd_thumb.gif
* @param <string> $dirPath 把生成的新图片存放到另一个目录中
*
* 注： 多切只需要传文件名即可, 不带后缀
* @param newThumbName 新文件名 thumb
* @return <boolean> TRUE 成功, FALSE 失败
*/
public function putThumb($oldFileName = '', $newFileName = 'thumb', $dirPath = '') {
$filePath = $oldFileName ? $this->_config['path']. $this->dir_sep. $oldFileName : $this->getData['full_path'];
if($filePath && $this->_config['fileType'] == 'image' && $this->_config['cutting'] && $this->_config['cutWidth'] && $this->_config['cutHeight'] && @file_exists($filePath)) {
if(!isset($this->getData['width']) || !isset($this->getData['height'])) {
$this->getImage($filePath);
}
if(!in_array($this->getData['img_type_number'], @array_keys($this->_config['allowType']))) {
return UPLOAD_FILE_POSTFIX_ILLEGAL;
}
switch($this->getData['img_type_number']) {
case 1:
$im = imagecreatefromgif($filePath);
break;
case 2:
$im = imagecreatefromjpeg($filePath);
break;
case 3:
$im = imagecreatefrompng($filePath);
break;
}
if(!$im) {
return FALSE;
}
$this->_config['cutWidth'] > $this->getData['width'] && $this->_config['cutWidth'] = $this->getData['width'];
$this->_config['cutHeight'] > $this->getData['height'] && $this->_config['cutHeight'] = $this->getData['height'];
$width = $this->_config['cutWidth']; $height = $this->_config['cutHeight'];
if ($this->_config['cutWidth'] && ($this->getData['width'] < $this->getData['height'])) {
$width = ($this->_config['cutHeight'] / $this->getData['height']) * $this->getData['width'];
} else {
