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234 lines
5.8 KiB
234 lines
5.8 KiB
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Christopher Schäpers <kondou@ts.unde.re>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Stefan Weil <sw@weilnetz.de>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC\Archive;
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use Icewind\Streams\CallbackWrapper;
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use OCP\ILogger;
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class ZIP extends Archive {
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/**
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* @var \ZipArchive zip
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*/
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private $zip=null;
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private $path;
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/**
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* @param string $source
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*/
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public function __construct($source) {
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$this->path=$source;
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$this->zip=new \ZipArchive();
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if ($this->zip->open($source, \ZipArchive::CREATE)) {
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} else {
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\OCP\Util::writeLog('files_archive', 'Error while opening archive '.$source, ILogger::WARN);
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}
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}
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/**
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* add an empty folder to the archive
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* @param string $path
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* @return bool
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*/
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public function addFolder($path) {
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return $this->zip->addEmptyDir($path);
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}
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/**
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* add a file to the archive
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* @param string $path
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* @param string $source either a local file or string data
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* @return bool
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*/
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public function addFile($path, $source='') {
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if ($source and $source[0]=='/' and file_exists($source)) {
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$result=$this->zip->addFile($source, $path);
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} else {
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$result=$this->zip->addFromString($path, $source);
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}
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if ($result) {
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$this->zip->close();//close and reopen to save the zip
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$this->zip->open($this->path);
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}
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return $result;
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}
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/**
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* rename a file or folder in the archive
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* @param string $source
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* @param string $dest
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* @return boolean|null
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*/
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public function rename($source, $dest) {
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$source=$this->stripPath($source);
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$dest=$this->stripPath($dest);
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$this->zip->renameName($source, $dest);
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}
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/**
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* get the uncompressed size of a file in the archive
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* @param string $path
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* @return int
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*/
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public function filesize($path) {
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$stat=$this->zip->statName($path);
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return $stat['size'];
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}
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/**
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* get the last modified time of a file in the archive
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* @param string $path
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* @return int
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*/
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public function mtime($path) {
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return filemtime($this->path);
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}
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/**
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* get the files in a folder
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* @param string $path
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* @return array
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*/
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public function getFolder($path) {
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$files=$this->getFiles();
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$folderContent=[];
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$pathLength=strlen($path);
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foreach ($files as $file) {
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if (substr($file, 0, $pathLength)==$path and $file!=$path) {
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if (strrpos(substr($file, 0, -1), '/')<=$pathLength) {
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$folderContent[]=substr($file, $pathLength);
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}
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}
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}
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return $folderContent;
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}
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/**
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* get all files in the archive
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* @return array
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*/
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public function getFiles() {
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$fileCount=$this->zip->numFiles;
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$files=[];
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for ($i=0;$i<$fileCount;$i++) {
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$files[]=$this->zip->getNameIndex($i);
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}
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return $files;
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}
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/**
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* get the content of a file
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* @param string $path
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* @return string
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*/
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public function getFile($path) {
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return $this->zip->getFromName($path);
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}
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/**
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* extract a single file from the archive
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* @param string $path
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* @param string $dest
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* @return boolean|null
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*/
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public function extractFile($path, $dest) {
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$fp = $this->zip->getStream($path);
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file_put_contents($dest, $fp);
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}
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/**
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* extract the archive
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* @param string $dest
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* @return bool
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*/
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public function extract($dest) {
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return $this->zip->extractTo($dest);
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}
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/**
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* check if a file or folder exists in the archive
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* @param string $path
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* @return bool
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*/
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public function fileExists($path) {
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return ($this->zip->locateName($path)!==false) or ($this->zip->locateName($path.'/')!==false);
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}
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/**
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* remove a file or folder from the archive
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* @param string $path
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* @return bool
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*/
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public function remove($path) {
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if ($this->fileExists($path.'/')) {
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return $this->zip->deleteName($path.'/');
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} else {
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return $this->zip->deleteName($path);
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}
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}
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/**
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* get a file handler
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* @param string $path
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* @param string $mode
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* @return resource
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*/
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public function getStream($path, $mode) {
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if ($mode=='r' or $mode=='rb') {
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return $this->zip->getStream($path);
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} else {
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//since we can't directly get a writable stream,
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//make a temp copy of the file and put it back
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//in the archive when the stream is closed
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if (strrpos($path, '.')!==false) {
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$ext=substr($path, strrpos($path, '.'));
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} else {
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$ext='';
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}
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$tmpFile = \OC::$server->getTempManager()->getTemporaryFile($ext);
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if ($this->fileExists($path)) {
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$this->extractFile($path, $tmpFile);
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}
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$handle = fopen($tmpFile, $mode);
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return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
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$this->writeBack($tmpFile, $path);
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});
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}
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}
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/**
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* write back temporary files
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*/
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public function writeBack($tmpFile, $path) {
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$this->addFile($path, $tmpFile);
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unlink($tmpFile);
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}
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/**
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* @param string $path
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* @return string
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*/
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private function stripPath($path) {
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if (!$path || $path[0]=='/') {
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return substr($path, 1);
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} else {
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return $path;
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}
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}
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}
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