nextcloud/lib/filestorage/local.php

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<?php
/**
* for local filestore, we only have to map the paths
*/
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class OC_Filestorage_Local extends OC_Filestorage{
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private $datadir;
private static $mimetypes=null;
public function __construct($arguments){
$this->datadir=$arguments['datadir'];
if(substr($this->datadir,-1)!=='/'){
$this->datadir.='/';
}
}
public function mkdir($path){
if($return=mkdir($this->datadir.$path)){
$this->clearFolderSizeCache($path);
}
return $return;
}
public function rmdir($path){
if($return=rmdir($this->datadir.$path)){
$this->clearFolderSizeCache($path);
}
return $return;
}
public function opendir($path){
return opendir($this->datadir.$path);
}
public function is_dir($path){
return (is_dir($this->datadir.$path) or substr($path,-1)=='/');
}
public function is_file($path){
return is_file($this->datadir.$path);
}
public function stat($path){
return stat($this->datadir.$path);
}
public function filetype($path){
$filetype=filetype($this->datadir.$path);
if($filetype=='link'){
$filetype=filetype(readlink($this->datadir.$path));
}
return $filetype;
}
public function filesize($path){
if($this->is_dir($path)){
return $this->getFolderSize($path);
}else{
return filesize($this->datadir.$path);
}
}
public function is_readable($path){
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return is_readable($this->datadir.$path);
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}
public function is_writeable($path){
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return is_writable($this->datadir.$path);
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}
public function file_exists($path){
return file_exists($this->datadir.$path);
}
public function readfile($path){
return readfile($this->datadir.$path);
}
public function filectime($path){
return filectime($this->datadir.$path);
}
public function filemtime($path){
return filemtime($this->datadir.$path);
}
public function fileatime($path){
return fileatime($this->datadir.$path);
}
public function file_get_contents($path){
return file_get_contents($this->datadir.$path);
}
public function file_put_contents($path,$data){
if($return=file_put_contents($this->datadir.$path,$data)){
$this->clearFolderSizeCache($path);
}
}
public function unlink($path){
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$return=$this->delTree($path);
$this->clearFolderSizeCache($path);
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return $return;
}
public function rename($path1,$path2){
if(! $this->file_exists($path1)){
OC_Log::write('core','unable to rename, file does not exists : '.$path1,OC_Log::ERROR);
return false;
}
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if($return=rename($this->datadir.$path1,$this->datadir.$path2)){
$this->clearFolderSizeCache($path1);
$this->clearFolderSizeCache($path2);
}
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->datadir.$path1,$this->datadir.$path2)){
$this->clearFolderSizeCache($path2);
}
return $return;
}
public function fopen($path,$mode){
if($return=fopen($this->datadir.$path,$mode)){
switch($mode){
case 'r':
break;
case 'r+':
case 'w+':
case 'x+':
case 'a+':
$this->clearFolderSizeCache($path);
break;
case 'w':
case 'x':
case 'a':
$this->clearFolderSizeCache($path);
break;
}
}
return $return;
}
public function getMimeType($fspath){
if($this->is_readable($fspath)){
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$mimeType='application/octet-stream';
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if (@is_dir($this->datadir.$fspath)) {
// directories are easy
return "httpd/unix-directory";
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}
if($mimeType=='application/octet-stream' and function_exists('finfo_open') and function_exists('finfo_file') and $finfo=finfo_open(FILEINFO_MIME)){
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$mimeType =strtolower(finfo_file($finfo,$this->datadir.$fspath));
$mimeType=substr($mimeType,0,strpos($mimeType,';'));
finfo_close($finfo);
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}
if ($mimeType=='application/octet-stream' && function_exists("mime_content_type")) {
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// use mime magic extension if available
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$mimeType = mime_content_type($this->datadir.$fspath);
}
if ($mimeType=='application/octet-stream' && OC_Helper::canExecute("file")) {
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// it looks like we have a 'file' command,
// lets see it it does have mime support
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$fspath=str_replace("'","\'",$fspath);
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$fp = popen("file -i -b '{$this->datadir}$fspath' 2>/dev/null", "r");
$reply = fgets($fp);
pclose($fp);
//trim the character set from the end of the response
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$mimeType=substr($reply,0,strrpos($reply,' '));
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}
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if ($mimeType=='application/octet-stream') {
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// Fallback solution: (try to guess the type by the file extension
if(!self::$mimetypes){
self::$mimetypes=include('mimetypes.list.php');
}
$extention=strtolower(strrchr(basename($fspath), "."));
$extention=substr($extention,1);//remove leading .
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$mimeType=(isset(self::$mimetypes[$extention]))?self::$mimetypes[$extention]:'application/octet-stream';
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}
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return $mimeType;
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}
}
public function toTmpFile($path){
$tmpFolder=get_temp_dir();
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$filename=tempnam($tmpFolder,'OC_TEMP_FILE_'.substr($path,strrpos($path,'.')));
$fileStats = stat($this->datadir.$path);
if(copy($this->datadir.$path,$filename)){
touch($filename, $fileStats['mtime'], $fileStats['atime']);
return $filename;
}else{
return false;
}
}
public function fromTmpFile($tmpFile,$path){
$fileStats = stat($tmpFile);
if(rename($tmpFile,$this->datadir.$path)){
touch($this->datadir.$path, $fileStats['mtime'], $fileStats['atime']);
$this->clearFolderSizeCache($path);
return true;
}else{
return false;
}
}
public function fromUploadedFile($tmpFile,$path){
$fileStats = stat($tmpFile);
if(move_uploaded_file($tmpFile,$this->datadir.$path)){
touch($this->datadir.$path, $fileStats['mtime'], $fileStats['atime']);
$this->clearFolderSizeCache($path);
return true;
}else{
return false;
}
}
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private function delTree($dir) {
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$dirRelative=$dir;
$dir=$this->datadir.$dir;
if (!file_exists($dir)) return true;
if (!is_dir($dir) || is_link($dir)) return unlink($dir);
foreach (scandir($dir) as $item) {
if ($item == '.' || $item == '..') continue;
if(is_file($dir.'/'.$item)){
if(unlink($dir.'/'.$item)){
$this->clearFolderSizeCache($dir);
}
}elseif(is_dir($dir.'/'.$item)){
if (!$this->delTree($dirRelative. "/" . $item)){
return false;
};
}
}
if($return=rmdir($dir)){
$this->clearFolderSizeCache($dir);
}
return $return;
}
public function hash($type,$path,$raw){
return hash_file($type,$this->datadir.$path,$raw);
}
public function free_space($path){
return disk_free_space($this->datadir.$path);
}
public function search($query){
return $this->searchInDir($query);
}
public function getLocalFile($path){
return $this->datadir.$path;
}
private function searchInDir($query,$dir=''){
$files=array();
foreach (scandir($this->datadir.$dir) as $item) {
if ($item == '.' || $item == '..') continue;
if(strstr(strtolower($item),strtolower($query))!==false){
$files[]=$dir.'/'.$item;
}
if(is_dir($this->datadir.$dir.'/'.$item)){
$files=array_merge($files,$this->searchInDir($query,$dir.'/'.$item));
}
}
return $files;
}
/**
* @brief get the size of folder and it's content
* @param string $path file path
* @return int size of folder and it's content
*/
public function getFolderSize($path){
$path=str_replace('//','/',$path);
if($this->is_dir($path) and substr($path,-1)!='/'){
$path.='/';
}
$query=OC_DB::prepare("SELECT size FROM *PREFIX*foldersize WHERE path=?");
$size=$query->execute(array($path))->fetchAll();
if(count($size)>0){// we already the size, just return it
return $size[0]['size'];
}else{//the size of the folder isn't know, calulate it
return $this->calculateFolderSize($path);
}
}
/**
* @brief calulate the size of folder and it's content and cache it
* @param string $path file path
* @return int size of folder and it's content
*/
public function calculateFolderSize($path){
if($this->is_file($path)){
$path=dirname($path);
}
$path=str_replace('//','/',$path);
if($this->is_dir($path) and substr($path,-1)!='/'){
$path.='/';
}
$size=0;
if ($dh = $this->opendir($path)) {
while (($filename = readdir($dh)) !== false) {
if($filename!='.' and $filename!='..'){
$subFile=$path.'/'.$filename;
if($this->is_file($subFile)){
$size+=$this->filesize($subFile);
}else{
$size+=$this->getFolderSize($subFile);
}
}
}
if($size>0){
$query=OC_DB::prepare("INSERT INTO *PREFIX*foldersize VALUES(?,?)");
$result=$query->execute(array($path,$size));
}
}
return $size;
}
/**
* @brief clear the folder size cache of folders containing a file
* @param string $path
*/
public function clearFolderSizeCache($path){
if($this->is_file($path)){
$path=dirname($path);
}
$path=str_replace('//','/',$path);
if($this->is_dir($path) and substr($path,-1)!='/'){
$path.='/';
}
$query=OC_DB::prepare("DELETE FROM *PREFIX*foldersize WHERE path = ?");
$result=$query->execute(array($path));
if($path!='/' and $path!=''){
$parts=explode('/',$path);
//pop empty part
$part=array_pop($parts);
if(empty($part)){
array_pop($parts);
}
$parent=implode('/',$parts);
$this->clearFolderSizeCache($parent);
}
}
}