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|
<?php
/**
* Copyright (c) 2014 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC;
use OCP\ILogger;
use OCP\ITempManager;
class TempManager implements ITempManager {
/**
* Current temporary files and folders
*
* @var string[]
*/
protected $current = array();
/**
* i.e. /tmp on linux systems
*
* @var string
*/
protected $tmpBaseDir;
/**
* @var \OCP\ILogger
*/
protected $log;
/**
* @param string $baseDir
* @param \OCP\ILogger $logger
*/
public function __construct($baseDir, ILogger $logger) {
$this->tmpBaseDir = $baseDir;
$this->log = $logger;
}
protected function generatePath($postFix) {
return $this->tmpBaseDir . '/oc_tmp_' . md5(time() . rand()) . $postFix;
}
/**
* Create a temporary file and return the path
*
* @param string $postFix
* @return string
*/
public function getTemporaryFile($postFix = '') {
$file = $this->generatePath($postFix);
if (is_writable($this->tmpBaseDir)) {
touch($file);
$this->current[] = $file;
return $file;
} else {
$this->log->warning(
'Can not create a temporary file in directory {dir}. Check it exists and has correct permissions',
array(
'dir' => $this->tmpBaseDir
)
);
return false;
}
}
/**
* Create a temporary folder and return the path
*
* @param string $postFix
* @return string
*/
public function getTemporaryFolder($postFix = '') {
$path = $this->generatePath($postFix);
if (is_writable($this->tmpBaseDir)) {
mkdir($path);
$this->current[] = $path;
return $path . '/';
} else {
$this->log->warning(
'Can not create a temporary folder in directory {dir}. Check it exists and has correct permissions',
array(
'dir' => $this->tmpBaseDir
)
);
return false;
}
}
/**
* Remove the temporary files and folders generated during this request
*/
public function clean() {
$this->cleanFiles($this->current);
}
protected function cleanFiles($files) {
foreach ($files as $file) {
if (file_exists($file)) {
try {
\OC_Helper::rmdirr($file);
} catch (\UnexpectedValueException $ex) {
$this->log->warning(
"Error deleting temporary file/folder: {file} - Reason: {error}",
array(
'file' => $file,
'error' => $ex->getMessage()
)
);
}
}
}
}
/**
* Remove old temporary files and folders that were failed to be cleaned
*/
public function cleanOld() {
$this->cleanFiles($this->getOldFiles());
}
/**
* Get all temporary files and folders generated by oc older than an hour
*
* @return string[]
*/
protected function getOldFiles() {
$cutOfTime = time() - 3600;
$files = array();
$dh = opendir($this->tmpBaseDir);
if ($dh) {
while (($file = readdir($dh)) !== false) {
if (substr($file, 0, 7) === 'oc_tmp_') {
$path = $this->tmpBaseDir . '/' . $file;
$mtime = filemtime($path);
if ($mtime < $cutOfTime) {
$files[] = $path;
}
}
}
}
return $files;
}
}
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