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377 lines
13 KiB
PHP
377 lines
13 KiB
PHP
<?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;
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class AppUpload extends Controller{
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//要配置的内容
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private $path = "./Uploads/App";
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private $iospath = "./Uploads/App";
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private $allowtype =array('apk','ipa','zip','rar','Plist');
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private $iosallowtype =array('ipa');
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private $maxsize = 99999999;
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private $israndname = true;
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private $originName;
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private $tmpFileName;
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private $fileType;
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private $fileSize;
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private $newFileName;
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private $errorNum = 0;
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private $errorMess = "";
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private $isChunk = false;
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private $indexOfChunk = 0;
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/**
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* 用于设置成员属性($path, $allowtype, $maxsize, $israndname)
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* 可以通过连贯操作一次设置多个属性值
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* @param $key 成员属性（不区分大小写）
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* @param $val 为成员属性设置的值
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* @return object 返回自己对象$this, 可以用于连贯操作
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*/
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function set($key, $val){
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$key = strtolower($key);
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if (array_key_exists($key, get_class_vars(get_class($this)))){
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$this->setOption($key, $val);
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}
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return $this;
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}
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/**
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* 调用该方法上传文件
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* Enter description here ...
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* @param $fileField 上传文件的表单名称
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*/
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function upload($fileField='', $info){
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//判断是否为分块上传
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$this->checkChunk($info);
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if (!$this->checkFilePath($this->path)){
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$this->errorMess = $this->getError();
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return false;
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}
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//将文件上传的信息取出赋给变量
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$name = $_FILES[$fileField]['name'];
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$tmp_name = $_FILES[$fileField]['tmp_name'];
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$size = $_FILES[$fileField]['size'];
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$error = $_FILES[$fileField]['error'];
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//设置文件信息
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if ($this->setFiles($name, $tmp_name, $size, $error)){
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//如果是分块，则创建一个唯一名称的文件夹用来保存该文件的所有分块
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if($this->isChunk){
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$uploadDir = $this->path;
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$tmpName = $this->setDirNameForChunks($info);
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if(!$this->checkFilePath($uploadDir . '/' . $tmpName)){
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$this->errorMess = $this->getError();
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return false;
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}
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//创建一个对应的文件，用来记录上传分块文件的修改时间，用于清理长期未完成的垃圾分块
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touch($uploadDir.'/'.$tmpName.'.tmp');
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}
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if($this->checkFileSize() && $this->checkFileType()){
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$this->setNewFileName();
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if ($this->copyFile()){
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return json_encode(array("chunk"=>$this->isChunk,"name"=>$this->newFileName,"path"=>$this->path,'size'=>$info['size']));
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}
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}
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}
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$this->errorMess = $this->getError();
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return false;
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}
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/**
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* 调用该方法上传ios文件
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* Enter description here ...
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* @param $fileField 上传文件的表单名称
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*/
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function iosUpload($fileField='', $info){
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//判断是否为分块上传
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$this->checkChunk($info);
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if (!$this->checkFilePath($this->iospath)){
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$this->errorMess = $this->getError();
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return false;
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}
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//将文件上传的信息取出赋给变量
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$name = $_FILES[$fileField]['name'];
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$tmp_name = $_FILES[$fileField]['tmp_name'];
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$size = $_FILES[$fileField]['size'];
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$error = $_FILES[$fileField]['error'];
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//设置文件信息
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if ($this->setFiles($name, $tmp_name, $size, $error)){
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//如果是分块，则创建一个唯一名称的文件夹用来保存该文件的所有分块
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if($this->isChunk){
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$uploadDir = $this->iospath;
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$tmpName = $this->setDirNameForChunks($info);
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if(!$this->checkFilePath($uploadDir . '/' . $tmpName)){
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$this->errorMess = $this->getError();
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return false;
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}
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//创建一个对应的文件，用来记录上传分块文件的修改时间，用于清理长期未完成的垃圾分块
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touch($uploadDir.'/'.$tmpName.'.tmp');
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}
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if($this->checkFileSize() && $this->checkFileType()){
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$this->setIosNewFileName();
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if ($this->copyFile()){
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return json_encode(array("chunk"=>$this->isChunk,"name"=>$this->newFileName,"path"=>$this->path,'size'=>$info['size']));
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}
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}
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}
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$this->errorMess = $this->getError();
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return false;
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}
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public function chunksMerge($uniqueFileName, $chunksTotal, $fileExt){
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$targetDir = $this->path.'/'.$uniqueFileName;
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//检查对应文件夹中的分块文件数量是否和总数保持一致
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$count = $this->getfilecounts($targetDir);
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if($chunksTotal > 1 && $count == $chunksTotal){
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//同步锁机制
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$lockFd = fopen($this->path.'/'.$uniqueFileName.'.lock', "w");
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if(!flock($lockFd, LOCK_EX | LOCK_NB)){
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fclose($lockFd);
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return false;
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}
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//进行合并
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$this->fileType = $fileExt;
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$finalName = $this->path.'/'.($this->setOption('newFileName', $this->proRandName()));
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$file = fopen($finalName, 'wb');
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for($index = 0; $index < $chunksTotal; $index++){
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$tmpFile = $targetDir.'/'.$index;
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$chunkFile = fopen($tmpFile, 'rb');
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$content = fread($chunkFile, filesize($tmpFile));
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fclose($chunkFile);
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fwrite($file, $content);
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//删除chunk文件
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unlink($tmpFile);
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}
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fclose($file);
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//删除chunk文件夹
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rmdir($targetDir);
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unlink($this->path.'/'.$uniqueFileName.'.tmp');
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//解锁
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flock($lockFd, LOCK_UN);
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fclose($lockFd);
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unlink($this->path.'/'.$uniqueFileName.'.lock');
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return json_encode(array("name"=>$this->newFileName,"path"=>$this->path));
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}
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return false;
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}
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/**
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*获取文件个数
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*/
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function getfilecounts($targetDir=""){
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$handle = opendir($targetDir);
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$i = 0;
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while(false !== $file=(readdir($handle))){
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if($file !== '.' && $file != '..')
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{
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$i++;
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}
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}
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closedir($handle);
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return $i;
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}
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//获取上传后的文件名称
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public function getFileName(){
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return $this->newFileName;
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}
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//上传失败后，调用该方法则返回，上传出错信息
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// public function getErrorMsg(){
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// return $this->errorMess;
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// }
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//设置上传出错信息
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public function getError(){
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$str = "上传文件<font color='red'>{$this->originName}</font>时出错：";
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switch ($this->errorNum) {
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case 4:
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$str.= "没有文件被上传";
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break;
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case 3:
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$str.= "文件只有部分被上传";
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break;
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case 2:
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$str.= "上传文件的大小超过了HTML表单中MAX_FILE_SIZE选项指定的值";
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break;
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case 1:
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$str.= "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 -1:
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$str.= "未允许的类型";
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break;
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case -2:
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$str.= "文件过大， 上传的文件夹不能超过{$this->maxsize}个字节";
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break;
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case -3:
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$str.= "上传失败";
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break;
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case -4:
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$str.= "建立存放上传文件目录失败，请重新指定上传目录";
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break;
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case -5:
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$str.= "必须指定上传文件的路径";
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break;
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default:
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$str .= "未知错误";
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}
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return $str."<br>";
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}
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//根据文件的相关信息为分块数据创建文件夹
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//md5(当前登录用户的数据库id + 文件原始名称 + 文件类型 + 文件最后修改时间 + 文件总大小)
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private function setDirNameForChunks($info){
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$str = ''.$info['userId'] . $info['name'] . $info['type'] . $info['lastModifiedDate'] . $info['size'];
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return md5($str);
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}
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//设置和$_FILES有关的内容
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private function setFiles($name="", $tmp_name="", $size=0, $error=0){
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$this->setOption('errorNum', $error);
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if ($error) {
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return false;
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}
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$this->setOption('originName', $name);
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$this->setOption('tmpFileName', $tmp_name);
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$aryStr = explode(".", $name);
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$this->setOption("fileType", strtolower($aryStr[count($aryStr)-1]));
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$this->setOption("fileSize", $size);
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return true;
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}
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private function checkChunk($info){
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if(isset($info['chunks']) && $info['chunks'] > 0){
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$this->setOption("isChunk", true);
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if(isset($info['chunk']) && $info['chunk'] >= 0){
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$this->setOption("indexOfChunk", $info['chunk']);
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return true;
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}
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throw new Exception('分块索引不合法');
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}
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return false;
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}
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//为单个成员属性设置值
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private function setOption($key, $val){
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$this->$key = $val;
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return $val;
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}
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//设置上传后的文件名称
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private function setNewFileName(){
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if($this->isChunk){ //如果是分块，则以分块的索引作为文件名称保存
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$this->setOption('newFileName', $this->indexOfChunk);
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}elseif($this->israndname) {
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$this->setOption('newFileName', $this->proRandName());
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}else{
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$this->setOption('newFileName', $this->originName);
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}
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}
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//设置苹果上传后的文件名称
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private function setIosNewFileName(){
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if($this->isChunk){ //如果是分块，则以分块的索引作为文件名称保存
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$this->setOption('newFileName', $this->indexOfChunk);
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}elseif($this->israndname) {
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$this->setOption('newFileName', $this->proIosRandName());
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}else{
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$this->setOption('newFileName', $this->originName);
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}
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}
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//检查上传的文件是否是合法的类型
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private function checkFileType(){
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if (in_array(strtolower($this->fileType), $this->allowtype)) {
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return true;
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}else{
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$this->setOption('errorNum', -1);
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return false;
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}
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}
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//检查上传的文件是否是允许的大小
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private function checkFileSize(){
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if ($this->fileSize > $this->maxsize) {
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$this->setOption('errorNum', -5);
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return false;
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}else{
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return true;
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}
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}
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//检查是否有存放上传文件的目录
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private function checkFilePath($target){
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if (empty($target)) {
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$this->setOption('errorNum', -5);
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return false;
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}
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if (!file_exists($target) || !is_writable($target)) {
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if (!@mkdir($target, 0755)) {
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$this->setOption('errorNum', -4);
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return false;
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}
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}
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$this->path = $target;
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return true;
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}
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//设置文件名
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private function proRandName(){
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// $fileName = 'xgsy';
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$fileName = date('YmdHis')."_".rand(100,999);
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return $fileName.'.'.$this->fileType;
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}
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//设置随机文件名
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private function proIosRandName(){
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$fileName = 'ios'.date('YmdHis')."_".rand(100,999);
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return $fileName.'.'.$this->fileType;
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}
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//复制上传文件到指定的位置
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private function copyFile(){
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if (!$this->errorNum) {
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$path = rtrim($this->path, '/').'/';
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$path.= $this->newFileName;
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if (@move_uploaded_file($this->tmpFileName, $path)) {
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return true;
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}else{
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$this->setOption('errorNum', -3);
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return false;
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}
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}else{
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return false;
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}
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}
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}
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