133 lines
3.8 KiB
PHP
133 lines
3.8 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Joas Schilling <coding@schilljs.com>
|
|
* @author Thomas Müller <thomas.mueller@tmit.eu>
|
|
* @author Victor Dubiniuk <dubiniuk@owncloud.com>
|
|
*
|
|
* @license AGPL-3.0
|
|
*
|
|
* This code is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License, version 3,
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License, version 3,
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*
|
|
*/
|
|
|
|
namespace OC;
|
|
|
|
use ownCloud\TarStreamer\TarStreamer;
|
|
use ZipStreamer\ZipStreamer;
|
|
|
|
class Streamer {
|
|
// array of regexp. Matching user agents will get tar instead of zip
|
|
private $preferTarFor = [ '/macintosh|mac os x/i' ];
|
|
|
|
// streamer instance
|
|
private $streamerInstance;
|
|
|
|
public function __construct(){
|
|
/** @var \OCP\IRequest */
|
|
$request = \OC::$server->getRequest();
|
|
|
|
if ($request->isUserAgent($this->preferTarFor)) {
|
|
$this->streamerInstance = new TarStreamer();
|
|
} else {
|
|
$this->streamerInstance = new ZipStreamer();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send HTTP headers
|
|
* @param string $name
|
|
*/
|
|
public function sendHeaders($name){
|
|
$extension = $this->streamerInstance instanceof ZipStreamer ? '.zip' : '.tar';
|
|
$fullName = $name . $extension;
|
|
$this->streamerInstance->sendHeaders($fullName);
|
|
}
|
|
|
|
/**
|
|
* Stream directory recursively
|
|
* @param string $dir
|
|
* @param string $internalDir
|
|
*/
|
|
public function addDirRecursive($dir, $internalDir='') {
|
|
$dirname = basename($dir);
|
|
$rootDir = $internalDir . $dirname;
|
|
if (!empty($rootDir)) {
|
|
$this->streamerInstance->addEmptyDir($rootDir);
|
|
}
|
|
$internalDir .= $dirname . '/';
|
|
// prevent absolute dirs
|
|
$internalDir = ltrim($internalDir, '/');
|
|
|
|
$files= \OC\Files\Filesystem::getDirectoryContent($dir);
|
|
foreach($files as $file) {
|
|
$filename = $file['name'];
|
|
$file = $dir . '/' . $filename;
|
|
if(\OC\Files\Filesystem::is_file($file)) {
|
|
$filesize = \OC\Files\Filesystem::filesize($file);
|
|
$fileTime = \OC\Files\Filesystem::filemtime($file);
|
|
$fh = \OC\Files\Filesystem::fopen($file, 'r');
|
|
$this->addFileFromStream($fh, $internalDir . $filename, $filesize, $fileTime);
|
|
fclose($fh);
|
|
}elseif(\OC\Files\Filesystem::is_dir($file)) {
|
|
$this->addDirRecursive($file, $internalDir);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add a file to the archive at the specified location and file name.
|
|
*
|
|
* @param string $stream Stream to read data from
|
|
* @param string $internalName Filepath and name to be used in the archive.
|
|
* @param int $size Filesize
|
|
* @param int|bool $time File mtime as int, or false
|
|
* @return bool $success
|
|
*/
|
|
public function addFileFromStream($stream, $internalName, $size, $time) {
|
|
$options = [];
|
|
if ($time) {
|
|
$options = [
|
|
'timestamp' => $time
|
|
];
|
|
}
|
|
|
|
if ($this->streamerInstance instanceof ZipStreamer) {
|
|
return $this->streamerInstance->addFileFromStream($stream, $internalName, $options);
|
|
} else {
|
|
return $this->streamerInstance->addFileFromStream($stream, $internalName, $size, $options);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add an empty directory entry to the archive.
|
|
*
|
|
* @param string $dirName Directory Path and name to be added to the archive.
|
|
* @return bool $success
|
|
*/
|
|
public function addEmptyDir($dirName){
|
|
return $this->streamerInstance->addEmptyDir($dirName);
|
|
}
|
|
|
|
/**
|
|
* Close the archive.
|
|
* A closed archive can no longer have new files added to it. After
|
|
* closing, the file is completely written to the output stream.
|
|
* @return bool $success
|
|
*/
|
|
public function finalize(){
|
|
return $this->streamerInstance->finalize();
|
|
}
|
|
}
|