nextcloud/lib/private/files/storage/mappedlocal.php

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<?php
/**
* Copyright (c) 2012 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\Files\Storage;
/**
* for local filestore, we only have to map the paths
*/
class MappedLocal extends \OC\Files\Storage\Common{
protected $datadir;
private $mapper;
public function __construct($arguments) {
$this->datadir=$arguments['datadir'];
if(substr($this->datadir, -1)!=='/') {
$this->datadir.='/';
}
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$this->mapper= new \OC\Files\Mapper($this->datadir);
}
public function __destruct() {
if (defined('PHPUNIT_RUN')) {
$this->mapper->removePath($this->datadir, true, true);
}
}
public function getId(){
return 'local::'.$this->datadir;
}
public function mkdir($path) {
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return @mkdir($this->buildPath($path), 0777, true);
}
public function rmdir($path) {
try {
$it = new \RecursiveIteratorIterator(
new \RecursiveDirectoryIterator($this->buildPath($path)),
\RecursiveIteratorIterator::CHILD_FIRST
);
/**
* RecursiveDirectoryIterator on an NFS path isn't iterable with foreach
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* This bug is fixed in PHP 5.5.9 or before
* See #8376
*/
$it->rewind();
while ($it->valid()) {
/**
* @var \SplFileInfo $file
*/
$file = $it->current();
if (in_array($file->getBasename(), array('.', '..'))) {
$it->next();
continue;
} elseif ($file->isDir()) {
rmdir($file->getPathname());
} elseif ($file->isFile() || $file->isLink()) {
unlink($file->getPathname());
}
$it->next();
}
if ($result = @rmdir($this->buildPath($path))) {
$this->cleanMapper($path);
}
return $result;
} catch (\UnexpectedValueException $e) {
return false;
}
}
public function opendir($path) {
$files = array('.', '..');
$physicalPath= $this->buildPath($path);
$logicalPath = $this->mapper->physicalToLogic($physicalPath);
$dh = opendir($physicalPath);
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if(is_resource($dh)) {
while (($file = readdir($dh)) !== false) {
if ($file === '.' or $file === '..') {
continue;
}
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$logicalFilePath = $this->mapper->physicalToLogic($physicalPath.'/'.$file);
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$file= $this->mapper->stripRootFolder($logicalFilePath, $logicalPath);
$file = $this->stripLeading($file);
$files[]= $file;
}
}
\OC\Files\Stream\Dir::register('local-win32'.$path, $files);
return opendir('fakedir://local-win32'.$path);
}
public function is_dir($path) {
if(substr($path, -1)=='/') {
$path=substr($path, 0, -1);
}
return is_dir($this->buildPath($path));
}
public function is_file($path) {
return is_file($this->buildPath($path));
}
public function stat($path) {
$fullPath = $this->buildPath($path);
$statResult = stat($fullPath);
if ($statResult['size'] < 0) {
$size = self::getFileSizeFromOS($fullPath);
$statResult['size'] = $size;
$statResult[7] = $size;
}
return $statResult;
}
public function filetype($path) {
$filetype=filetype($this->buildPath($path));
if($filetype=='link') {
$filetype=filetype(realpath($this->buildPath($path)));
}
return $filetype;
}
public function filesize($path) {
if($this->is_dir($path)) {
return 0;
}else{
$fullPath = $this->buildPath($path);
$fileSize = filesize($fullPath);
if ($fileSize < 0) {
return self::getFileSizeFromOS($fullPath);
}
return $fileSize;
}
}
public function isReadable($path) {
return is_readable($this->buildPath($path));
}
public function isUpdatable($path) {
return is_writable($this->buildPath($path));
}
public function file_exists($path) {
return file_exists($this->buildPath($path));
}
public function filemtime($path) {
return filemtime($this->buildPath($path));
}
public function touch($path, $mtime=null) {
// sets the modification time of the file to the given value.
// If mtime is nil the current time is set.
// note that the access time of the file always changes to the current time.
if(!is_null($mtime)) {
$result=touch( $this->buildPath($path), $mtime );
}else{
$result=touch( $this->buildPath($path));
}
if( $result ) {
clearstatcache( true, $this->buildPath($path) );
}
return $result;
}
public function file_get_contents($path) {
return file_get_contents($this->buildPath($path));
}
public function file_put_contents($path, $data) {
return file_put_contents($this->buildPath($path), $data);
}
public function unlink($path) {
return $this->delTree($path);
}
public function rename($path1, $path2) {
if (!$this->isUpdatable($path1)) {
\OC_Log::write('core', 'unable to rename, file is not writable : '.$path1, \OC_Log::ERROR);
return false;
}
if(! $this->file_exists($path1)) {
\OC_Log::write('core', 'unable to rename, file does not exists : '.$path1, \OC_Log::ERROR);
return false;
}
$physicPath1 = $this->buildPath($path1);
$physicPath2 = $this->buildPath($path2);
if($return=rename($physicPath1, $physicPath2)) {
// mapper needs to create copies or all children
$this->copyMapping($path1, $path2);
$this->cleanMapper($physicPath1, false, true);
}
return $return;
}
public function copy($path1, $path2) {
if($this->is_dir($path2)) {
if(!$this->file_exists($path2)) {
$this->mkdir($path2);
}
$source=substr($path1, strrpos($path1, '/')+1);
$path2.=$source;
}
if($return=copy($this->buildPath($path1), $this->buildPath($path2))) {
// mapper needs to create copies or all children
$this->copyMapping($path1, $path2);
}
return $return;
}
public function fopen($path, $mode) {
if($return=fopen($this->buildPath($path), $mode)) {
switch($mode) {
case 'r':
break;
case 'r+':
case 'w+':
case 'x+':
case 'a+':
break;
case 'w':
case 'x':
case 'a':
break;
}
}
return $return;
}
/**
* @param string $dir
*/
private function delTree($dir, $isLogicPath=true) {
$dirRelative=$dir;
if ($isLogicPath) {
$dir=$this->buildPath($dir);
}
if (!file_exists($dir)) {
return true;
}
if (!is_dir($dir) || is_link($dir)) {
if($return=unlink($dir)) {
$this->cleanMapper($dir, false);
return $return;
}
}
foreach (scandir($dir) as $item) {
if ($item == '.' || $item == '..') {
continue;
}
if(is_file($dir.'/'.$item)) {
if(unlink($dir.'/'.$item)) {
$this->cleanMapper($dir.'/'.$item, false);
}
}elseif(is_dir($dir.'/'.$item)) {
if (!$this->delTree($dir. "/" . $item, false)) {
return false;
};
}
}
if($return=rmdir($dir)) {
$this->cleanMapper($dir, false);
}
return $return;
}
/**
* @param string $fullPath
*/
private static function getFileSizeFromOS($fullPath) {
$name = strtolower(php_uname('s'));
// Windows OS: we use COM to access the filesystem
if (strpos($name, 'win') !== false) {
if (class_exists('COM')) {
$fsobj = new \COM("Scripting.FileSystemObject");
$f = $fsobj->GetFile($fullPath);
return $f->Size;
}
} else if (strpos($name, 'bsd') !== false) {
if (\OC_Helper::is_function_enabled('exec')) {
return (float)exec('stat -f %z ' . escapeshellarg($fullPath));
}
} else if (strpos($name, 'linux') !== false) {
if (\OC_Helper::is_function_enabled('exec')) {
return (float)exec('stat -c %s ' . escapeshellarg($fullPath));
}
} else {
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\OC_Log::write('core',
'Unable to determine file size of "'.$fullPath.'". Unknown OS: '.$name,
\OC_Log::ERROR);
}
return 0;
}
public function hash($type, $path, $raw=false) {
return hash_file($type, $this->buildPath($path), $raw);
}
public function free_space($path) {
return @disk_free_space($this->buildPath($path));
}
public function search($query) {
return $this->searchInDir($query);
}
public function getLocalFile($path) {
return $this->buildPath($path);
}
public function getLocalFolder($path) {
return $this->buildPath($path);
}
/**
* @param string $query
*/
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protected function searchInDir($query, $dir='') {
$files=array();
$physicalDir = $this->buildPath($dir);
foreach (scandir($physicalDir) as $item) {
if ($item == '.' || $item == '..')
continue;
$physicalItem = $this->mapper->physicalToLogic($physicalDir.'/'.$item);
$item = substr($physicalItem, strlen($physicalDir)+1);
if(strstr(strtolower($item), strtolower($query)) !== false) {
$files[]=$dir.'/'.$item;
}
if(is_dir($physicalItem)) {
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$files=array_merge($files, $this->searchInDir($query, $dir.'/'.$item));
}
}
return $files;
}
/**
* check if a file or folder has been updated since $time
* @param string $path
* @param int $time
* @return bool
*/
public function hasUpdated($path, $time) {
return $this->filemtime($path)>$time;
}
/**
* @param string $path
*/
private function buildPath($path, $create=true) {
$path = $this->stripLeading($path);
$fullPath = $this->datadir.$path;
return $this->mapper->logicToPhysical($fullPath, $create);
}
/**
* @param string $path
*/
private function cleanMapper($path, $isLogicPath=true, $recursive=true) {
$fullPath = $path;
if ($isLogicPath) {
$fullPath = $this->datadir.$path;
}
$this->mapper->removePath($fullPath, $isLogicPath, $recursive);
}
/**
* @param string $path1
* @param string $path2
*/
private function copyMapping($path1, $path2) {
$path1 = $this->stripLeading($path1);
$path2 = $this->stripLeading($path2);
$fullPath1 = $this->datadir.$path1;
$fullPath2 = $this->datadir.$path2;
$this->mapper->copy($fullPath1, $fullPath2);
}
/**
* @param string $path
*/
private function stripLeading($path) {
if(strpos($path, '/') === 0) {
$path = substr($path, 1);
}
if(strpos($path, '\\') === 0) {
$path = substr($path, 1);
}
if ($path === false) {
return '';
}
return $path;
}
}