266 lines
8.6 KiB
PHP
266 lines
8.6 KiB
PHP
<?php
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/**
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* User: xiaoqing Email: liuxiaoqing437@gmail.com
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* Date: 2015/3/14
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* Time: 10:28
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* 文件上传
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*/
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class Upload{
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private $file_type = array('image'); //文件类型 video, audio, image详见_getFileExts函数
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private $file_exts = array(); //如果$file_type里没有，则查找这里的扩展名
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private $limit_exts = array('php', 'php3', 'phtml', 'php4', 'asp', 'html', 'htm', 'js', 'vbs', 'bat');
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private $max_size = 10485760; //0为不限制，单位b 10M = 10485760b
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private $rename = 1; //是否重命名
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private $filename_suffix = null; //文件名后缀
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private $savePath = ''; //文件保存绝对路径，不指定则调用配置文件中的路径
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private $error = array(); //错误集
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public function __construct($params = []){
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foreach ($params as $key => $val){
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$this->$key = $val;
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}
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}
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/**
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* 执行上传
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* @param string $input_name 上传表单区域的名称
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* @return array() , bool 返回上传信息数组或false
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* @return array (
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* 'name' => 'cpu.jpg',
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* 'ext' => 'jpg',
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* 'size' => 338182,
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* 'size2' => '330.26 KB',
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* 'type' => 'image/pjpeg',
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* 'url' => '/static/soft/cpu.jpg',
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* 'path' => 'D:\wwwroot\com\site\static\soft\cpu.jpg',
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* )
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*/
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public function save($input_name){
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$result = [];
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if(!isset($_FILES[$input_name]) || empty($_FILES[$input_name]['name']))
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return false;
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$files =& $_FILES[$input_name]; //这样引用更有效率
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if(is_array($files['name'])){
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//上传多个文件
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$file = array();
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foreach($files['name'] as $key => $val) {
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if(empty($val)) continue;
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if($files['error'][$key]){
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$this -> error[] = $this -> codeToMessage($files['error'][$key]);
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return false;
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}
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$file['tmp_name'] = $files['tmp_name'][$key];
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$file['name'] = $files['name'][$key];
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$file['type'] = $files['type'][$key];
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$file['size'] = $files['size'][$key];
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//$file['error'] = $files['error'][$key];
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$rt = $this->_upload($file);
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if(!$rt)return false;
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$result[$key] = $rt;
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}
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//end multi-file upload
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}else{
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if($files['error']){
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$this -> error[] = $this -> codeToMessage($files['error']);
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return false;
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}
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$result = $this->_upload($files);
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}
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return $result ? $result : false;
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}
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/**
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* 处理上传文件
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* @param array $file_info
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* @return array
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*/
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private function _upload($file_info){
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$result = array();
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$result['src_name'] = $file_info['name'];
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$name_ext = $this->_getFilename($file_info);
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if(!$name_ext)return false;
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$result['name'] = $name_ext['name'];
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$result['ext'] = $name_ext['ext'];
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$result['size'] = $file_info['size'];
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$result['size2'] = $this->_getFileSize($file_info['size']);
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if(!$result['size2'])return false;
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$result['type'] = $file_info['type'];
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$path = $this->_getFilePath($name_ext['name']);
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$result['url'] = substr($path['path'], strlen(dirname($this->savePath)));
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$result['url'] = str_replace('\\', '/', $result['url']);
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$result['path'] = $path['path']; //完整路径，即包含文件名
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if(!move_uploaded_file($file_info['tmp_name'], $path['path'])){
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$this -> error[] = '无法移动上传文件！';
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return false;
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}
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return $result;
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}
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/**
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* 返回错误内容
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* @return null|string
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*/
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public function getError(){
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return $this -> error ? implode('', (array)$this -> error) : null;
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}
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private function _getFilePath($name){
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global $CONFIG;
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$path = $this->savePath ? $this->savePath : $CONFIG['upload_path'];
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$rightChar = substr($path, -1, 1);
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if ($rightChar != "\\" && $rightChar != '/')
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$path .= DIRECTORY_SEPARATOR;
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$this->savePath = $path;
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Util::_mkdir($path);
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return ['path' => $path . $name];
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}
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/**
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* 取得上传后的文件名，不包含路径
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* @param array $fileInfo 上传区域$_FILES信息
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* @return bool|array (name, ext)
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*/
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private function _getFilename($fileInfo)
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{
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$name = $fileInfo['name'];
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$name = trim($name);
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$paras = explode('.', $name);
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if(!is_array($paras) || !$paras){
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$this->error[] = '无效的上传文件名：'.$name.'！';
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return false;
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}
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$ext = array_pop($paras);
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$name = implode('.', $paras);
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if(!$ext || !$name){
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$this->error[] = '无效的上传文件名或文件：'.$name.'.'.$ext.'！';
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return false;
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}
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$ext = strtolower($ext);
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if(!$this->_checkFileType($ext))
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return false;
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$new_name = $this -> rename ? date('YmdHis').'_'.rand(10000, 99999) : $name;
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if($this->filename_suffix) $new_name .= $this->filename_suffix;
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return [
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'name' => $new_name.'.'.$ext,
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'ext' => $ext
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];
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}
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private function _getFileSize($size)
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{
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$max_size = $this->max_size;
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$size_format = Util::formatBytes($size);
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if(!$max_size) return $size_format;
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if($size > $max_size){
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$this -> error[] = "文件大小不能超过：" . Util::formatBytes($max_size).'！';
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return false;
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}
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return $size_format;
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}
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private function _checkFileType($ext){
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if (in_array($ext, $this->file_exts)) return true;
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foreach($this->file_type as $val){
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$exts = (array) self::_getFileExts($val);
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if (in_array($ext, $exts)) return true;
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}
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if(in_array($ext, $this->limit_exts)){
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$this->error[] = "系统限制上传文件类型：{$ext}！";
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return false;
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}
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return true;
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}
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private static function _getFileExts($name){
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switch($name){
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case 'video':
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return array('mpg', 'mpeg', 'avi', 'rm', 'rmvb', 'mov', 'wmv', 'asf', 'dat'); //.asx, .wvx, .mpe, .mpa
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case 'audio':
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return array('mp3', 'wma', 'rm', 'ram', 'wav', 'mid', 'midi', 'rmi', 'm3u',
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'ogg', 'ape', 'cda'); //.au, .aiff, .aif, .aifc, .669, .wax, .snd
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case 'image':
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return array('jpeg', 'jpg', 'gif', 'bmp', 'png', 'ico', 'icl', 'psd', 'tif',
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'cr2', 'crw', 'cur', 'ani');
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case 'app':
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return array('exe', 'msi', 'bat', 'dll');
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case 'flash':
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return array('fla', 'swf', 'flv');
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case 'text':
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return array('txt', 'rtf', 'doc', 'chm', 'ini', 'log');
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case 'compress':
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return array('zip', 'rar', 'cab', 'ace', 'z', 'arc', 'arj', 'lzh', 'tar', 'uue',
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'gzip');
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case 'mobile':
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return array('jar','jad','sis','sisx','prc','pxl');
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case 'iso':
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return array('iso', 'bin', 'cif', 'nrg', 'vcd', 'fcd', 'img', 'c2d', 'tao',
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'dao', 'vhd');
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}
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return array();
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}
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private function codeToMessage($code){
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switch($code){
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case UPLOAD_ERR_INI_SIZE:
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$message = '上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值！';
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break;
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case UPLOAD_ERR_FORM_SIZE:
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$message = '上传文件的大小超过了您浏览器的表单内容大小限制！';
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break;
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case UPLOAD_ERR_PARTIAL:
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$message = '文件只有部分被上传！';
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break;
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case UPLOAD_ERR_NO_FILE:
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$message = '没有文件被上传！';
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break;
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case UPLOAD_ERR_NO_TMP_DIR:
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$message = '找不到临时文件夹！';
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break;
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case UPLOAD_ERR_CANT_WRITE:
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$message = '文件写入失败！';
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break;
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case UPLOAD_ERR_EXTENSION:
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$message = '上传的文件受扩展名限制！';
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break;
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default:
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$message = '未知上传错误！';
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break;
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}
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return $message;
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}
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} |