159 lines
4.9 KiB
PHP
159 lines
4.9 KiB
PHP
<?php
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namespace App\Service\core;
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class ZipService
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{
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protected $zip;
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protected $root;
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protected $ignored_names;
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public function __construct(){
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$this->zip = new \ZipArchive;
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}
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/**
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* 创建压缩文件
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* Created by PhpStorm.
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* User: EricPan
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* Date: 2020/4/22
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* Time: 10:34
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* @param $zipfile
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*/
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private function createZipFile($zipfile)
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{
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if (!is_file($zipfile)) {
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file_put_contents($zipfile,'');
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}
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}
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/**
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* 解压zip文件到指定文件夹
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*
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* @access public
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* @param string $zipfile 压缩文件路径
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* @param string $path 压缩包解压到的目标路径
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* @return booleam 解压成功返回 true 否则返回 false
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*/
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public function unzip ($zipfile, $path) {
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if ($this->zip->open($zipfile) === true) {
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$file_tmp = @fopen($zipfile, "rb");
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$bin = fread($file_tmp, 15); //只读15字节 各个不同文件类型，头信息不一样。
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fclose($file_tmp);
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/* 只针对zip的压缩包进行处理 */
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if (true === $this->getTypeList($bin))
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{
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$result = $this->zip->extractTo($path);
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$this->zip->close();
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return $result;
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}
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else
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{
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return false;
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}
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}
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return false;
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}
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/**
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* 创建压缩文件
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* @access public
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* @param string $zipfile 将要生成的压缩文件路径
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* @param string $folder 将要被压缩的文件夹路径
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* @param null $ignored 要忽略的文件列表
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* @return booleam|bool
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* @throws \Exception
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*/
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public function zip ($zipfile, $folder, $ignored = null) {
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$this->createZipFile($zipfile);
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$this->ignored_names = (is_array($ignored) ? $ignored : $ignored) ? array($ignored) : array();
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if ($this->zip->open($zipfile) !== true) {
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throw new \Exception("cannot open <$zipfile>\n");
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}
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$folder = substr($folder, -1) == '/' ? substr($folder, 0, strlen($folder)-1) : $folder;
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if(strstr($folder, '/')) {
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$this->root = substr($folder, 0, strrpos($folder, '/')+1);
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$folder = substr($folder, strrpos($folder, '/')+1);
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}
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$this->createZip($folder);
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return $this->zip->close();
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}
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/**
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* 递归添加文件到压缩包
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*
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* @access private
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* @param string $folder 添加到压缩包的文件夹路径
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* @param string $parent 添加到压缩包的文件夹上级路径
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* @return void
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*/
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private function createZip ($folder, $parent=null) {
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$full_path = $this->root . $parent . $folder;
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$zip_path = $parent . $folder;
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$this->zip->addEmptyDir($zip_path);
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$dir = new \DirectoryIterator($full_path);
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foreach($dir as $file) {
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if(!$file->isDot()) {
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$filename = $file->getFilename();
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if(!in_array($filename, $this->ignored_names)) {
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if($file->isDir()) {
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$this->createZip($filename, $zip_path.'/');
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}else {
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//第二个参数是重命名文件名,带上路径就可以改变当前文件在压缩包里面的路径.
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$this->zip->addFile($full_path.'/'.$filename, $zip_path.'/'.$filename);
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}
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}
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}
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}
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}
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/**
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* 读取压缩包文件与目录列表
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*
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* @access public
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* @param string $zipfile 压缩包文件
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* @return array 文件与目录列表
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*/
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public function fileList($zipfile) {
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$file_dir_list = array();
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$file_list = array();
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if ($this->zip->open($zipfile) == true) {
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for ($i = 0; $i < $this->zip->numFiles; $i++) {
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$numfiles = $this->zip->getNameIndex($i);
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if (preg_match('/\/$/i', $numfiles))
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{
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$file_dir_list[] = $numfiles;
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}
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else
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{
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$file_list[] = $numfiles;
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}
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}
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}
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return array('files'=>$file_list, 'dirs'=>$file_dir_list);
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}
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/**
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* 得到文件头与文件类型映射表
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*
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* @author wengxianhu
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* @date 2013-08-10
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* @param $bin string 文件的二进制前一段字符
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* @return boolean
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*/
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private function getTypeList ($bin)
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{
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$array = array(
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array("504B0304", "zip")
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);
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foreach ($array as $v)
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{
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$blen = strlen(pack("H*", $v[0])); //得到文件头标记字节数
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$tbin = substr($bin, 0, intval($blen)); ///需要比较文件头长度
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if(strtolower($v[0]) == strtolower(array_shift(unpack("H*", $tbin))))
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{
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return true;
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}
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}
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return false;
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}
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}
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