552 lines
15 KiB
PHP
552 lines
15 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Frank Karlitschek
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* @copyright 2010 Frank Karlitschek karlitschek@kde.org
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library 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
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* Privde a common interface to all different storage options
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*/
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class OC_FILESTORAGE{
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private $observers=array();
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/**
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* add an observer to the list
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* @param OC_FILEOBERSER observer
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*/
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public function addObserver($observer){
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$this->observers[]=$observer;
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}
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/**
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* notify the observers about an action
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* @param int action a combination of OC_FILEACTION_WRITE and OC_FILEACTION_READ
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* @param string path relative path of the file
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*/
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public function notifyObservers($path,$action){
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foreach($this->observers as $observer){
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if($observer->mask & $action){
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$observer->notify($path,$action,$this);
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}
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}
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}
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public function __construct($parameters){}
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public function mkdir($path){}
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public function rmdir($path){}
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public function opendir($path){}
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public function is_dir($path){}
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public function is_file($path){}
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public function stat($path){}
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public function filetype($path){}
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public function filesize($path){}
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public function is_readable($path){}
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public function is_writeable($path){}
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public function file_exists($path){}
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public function readfile($path){}
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public function filectime($path){}
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public function filemtime($path){}
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public function fileatime($path){}
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public function file_get_contents($path){}
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public function file_put_contents($path,$data){}
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public function unlink($path){}
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public function rename($path1,$path2){}
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public function copy($path1,$path2){}
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public function fopen($path,$mode){}
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public function toTmpFile($path){}//copy the file to a temporary file, used for cross-storage file actions
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public function fromTmpFile($tmpPath,$path){}//copy a file from a temporary file, used for cross-storage file actions
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public function fromUploadedFile($tmpPath,$path){}//copy a file from a temporary file, used for cross-storage file actions
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public function getMimeType($path){}
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public function delTree($path){}
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public function find($path){}
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public function getTree($path){}
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public function hash($type,$path,$raw){}
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}
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OC_FILESYSTEM::registerStorageType('local','OC_FILESTORAGE_LOCAL',array('datadir'=>'string'));
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/**
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* for local filestore, we only have to map the paths
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*/
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class OC_FILESTORAGE_LOCAL extends OC_FILESTORAGE{
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private $datadir;
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public function __construct($arguments){
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$this->datadir=$arguments['datadir'];
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if(substr($this->datadir,-1)!=='/'){
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$this->datadir.='/';
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}
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}
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public function mkdir($path){
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if($return=mkdir($this->datadir.$path)){
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$this->clearFolderSizeCache($path);
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}
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return $return;
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}
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public function rmdir($path){
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if($return=rmdir($this->datadir.$path)){
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$this->notifyObservers($path,OC_FILEACTION_DELETE);
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$this->clearFolderSizeCache($path);
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}
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return $return;
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}
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public function opendir($path){
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if($return=opendir($this->datadir.$path)){
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$this->notifyObservers($path,OC_FILEACTION_READ);
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}
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return $return;
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}
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public function is_dir($path){
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return (is_dir($this->datadir.$path) or substr($path,-1)=='/');
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}
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public function is_file($path){
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return is_file($this->datadir.$path);
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}
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public function stat($path){
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return stat($this->datadir.$path);
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}
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public function filetype($path){
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$filetype=filetype($this->datadir.$path);
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if($filetype=='link'){
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$filetype=filetype(readlink($this->datadir.$path));
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}
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return $filetype;
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}
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public function filesize($path){
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if($this->is_dir($path)){
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return $this->getFolderSize($path);
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}else{
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return filesize($this->datadir.$path);
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}
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}
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public function is_readable($path){
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return is_readable($this->datadir.$path);
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}
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public function is_writeable($path){
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return is_writeable($this->datadir.$path);
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}
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public function file_exists($path){
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return file_exists($this->datadir.$path);
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}
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public function readfile($path){
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if($return=readfile($this->datadir.$path)){
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$this->notifyObservers($path,OC_FILEACTION_READ);
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}
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return $return;
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}
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public function filectime($path){
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return filectime($this->datadir.$path);
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}
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public function filemtime($path){
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return filemtime($this->datadir.$path);
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}
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public function fileatime($path){
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return fileatime($this->datadir.$path);
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}
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public function file_get_contents($path){
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if($return=file_get_contents($this->datadir.$path)){
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$this->notifyObservers($path,OC_FILEACTION_READ);
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}
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return $return;
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}
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public function file_put_contents($path,$data){
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if($return=file_put_contents($this->datadir.$path,$data)){
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$this->notifyObservers($path,OC_FILEACTION_WRITE);
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$this->clearFolderSizeCache($path);
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}
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}
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public function unlink($path){
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if($return=unlink($this->datadir.$path)){
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$this->notifyObservers($path,OC_FILEACTION_DELETE);
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$this->clearFolderSizeCache($path);
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}
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return $return;
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}
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public function rename($path1,$path2){
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if($return=rename($this->datadir.$path1,$this->datadir.$path2)){
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$this->notifyObservers($path1.'->'.$path2,OC_FILEACTION_RENAME);
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}
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return $return;
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}
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public function copy($path1,$path2){
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if($this->is_dir($path2)){
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if(!$this->file_exists($path2)){
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$this->mkdir($path2);
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}
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$source=substr($path1,strrpos($path1,'/')+1);
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$path2.=$source;
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}
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if($return=copy($this->datadir.$path1,$this->datadir.$path2)){
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$this->notifyObservers($path2,OC_FILEACTION_CREATE);
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$this->clearFolderSizeCache($path);
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}
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return $return;
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}
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public function fopen($path,$mode){
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if($return=fopen($this->datadir.$path,$mode)){
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switch($mode){
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case 'r':
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$this->notifyObservers($path,OC_FILEACTION_READ);
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break;
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case 'r+':
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case 'w+':
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case 'x+':
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case 'a+':
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$this->notifyObservers($path,OC_FILEACTION_READ | OC_FILEACTION_WRITE);
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$this->clearFolderSizeCache($path);
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break;
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case 'w':
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case 'x':
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case 'a':
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$this->notifyObservers($path,OC_FILEACTION_WRITE);
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$this->clearFolderSizeCache($path);
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break;
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}
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}
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return $return;
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}
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public function getMimeType($fspath){
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if($this->is_readable($fspath)){
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if (@is_dir($this->datadir.$fspath)) {
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// directories are easy
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return "httpd/unix-directory";
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}elseif (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.$fspath));
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$mimeType=substr($mimeType,0,strpos($mimeType,';'));
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finfo_close($finfo);
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return $mimeType;
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} else if (function_exists("mime_content_type")) {
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// use mime magic extension if available
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$mime_type = mime_content_type($this->datadir.$fspath);
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} else if (self::canExecute("file")) {
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// it looks like we have a 'file' command,
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// lets see it it does have mime support
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$fp = popen("file -i -b '{$this->datadir}$fspath' 2>/dev/null", "r");
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$reply = fgets($fp);
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pclose($fp);
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//trim the character set from the end of the response
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$mime_type=substr($reply,0,strrpos($reply,' '));
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}
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if (empty($mime_type)) {
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// Fallback solution: try to guess the type by the file extension
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// TODO: add more ...
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switch (strtolower(strrchr(basename($fspath), "."))) {
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case '.css':
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$mime_type = 'text/css';
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break;
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case '.flac':
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$mime_type = 'audio/flac';
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break;
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case '.gif':
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$mime_type = 'image/gif';
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break;
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case '.gzip':
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case '.gz':
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$mime_type = 'application/x-gzip';
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break;
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case '.htm':
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case '.html':
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$mime_type = 'text/html';
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break;
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case '.jpeg':
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case '.jpg':
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$mime_type = 'image/jpeg';
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break;
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case '.js':
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$mime_type = 'application/x-javascript';
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break;
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case '.oga':
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case '.ogg':
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$mime_type = 'audio/ogg';
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break;
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case '.ogv':
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$mime_type = 'video/ogg';
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break;
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case '.pdf':
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$mime_type = 'application/pdf';
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break;
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case '.png':
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$mime_type = 'image/png';
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break;
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case '.svg':
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$mime_type = 'image/svg+xml';
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break;
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case '.tar':
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$mime_type = 'application/x-tar';
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break;
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case '.tgz':
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$mime_type = 'application/x-compressed';
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break;
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case '.tif':
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case '.tiff':
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$mime_type = 'image/tiff';
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break;
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case '.txt':
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$mime_type = 'text/plain';
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break;
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case '.zip':
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$mime_type = 'application/zip';
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break;
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default:
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$mime_type = 'application/octet-stream';
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break;
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}
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}
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return $mime_type;
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}
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}
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/**
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* detect if a given program is found in the search PATH
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*
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* helper function used by _mimetype() to detect if the
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* external 'file' utility is available
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*
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* @param string program name
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* @param string optional search path, defaults to $PATH
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* @return bool true if executable program found in path
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*/
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private function canExecute($name, $path = false)
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{
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// path defaults to PATH from environment if not set
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if ($path === false) {
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$path = getenv("PATH");
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}
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// check method depends on operating system
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if (!strncmp(PHP_OS, "WIN", 3)) {
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// on Windows an appropriate COM or EXE file needs to exist
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$exts = array(".exe", ".com");
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$check_fn = "file_exists";
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} else {
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// anywhere else we look for an executable file of that name
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$exts = array("");
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$check_fn = "is_executable";
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}
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// Default check will be done with $path directories :
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$dirs = explode(PATH_SEPARATOR, $path);
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// WARNING : We have to check if open_basedir is enabled :
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$obd = ini_get('open_basedir');
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if($obd != "none")
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$obd_values = explode(PATH_SEPARATOR, $obd);
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if(count($obd_values) > 0)
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{
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// open_basedir is in effect !
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// We need to check if the program is in one of these dirs :
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$dirs = $obd_values;
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}
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foreach($dirs as $dir)
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{
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foreach($exts as $ext)
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{
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if($check_fn("$dir/$name".$ext))
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return true;
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}
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}
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return false;
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}
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public function toTmpFile($path){
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$tmpFolder=sys_get_temp_dir();
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$filename=tempnam($tmpFolder,'OC_TEMP_FILE_'.substr($path,strrpos($path,'.')));
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$fileStats = stat($this->datadir.$path);
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if(copy($this->datadir.$path,$filename)){
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touch($filename, $fileStats['mtime'], $fileStats['atime']);
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$this->notifyObservers($path,OC_FILEACTION_READ);
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return $filename;
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}else{
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return false;
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}
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}
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public function fromTmpFile($tmpFile,$path){
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$fileStats = stat($tmpFile);
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if(rename($tmpFile,$this->datadir.$path)){
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touch($this->datadir.$path, $fileStats['mtime'], $fileStats['atime']);
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$this->notifyObservers($path,OC_FILEACTION_CREATE);
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$this->clearFolderSizeCache($path);
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return true;
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}else{
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return false;
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}
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}
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public function fromUploadedFile($tmpFile,$path){
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$fileStats = stat($tmpFile);
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if(move_uploaded_file($tmpFile,$this->datadir.$path)){
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touch($this->datadir.$path, $fileStats['mtime'], $fileStats['atime']);
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$this->notifyObservers($path,OC_FILEACTION_CREATE);
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$this->clearFolderSizeCache($path);
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return true;
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}else{
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return false;
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}
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}
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public function delTree($dir) {
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$dirRelative=$dir;
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$dir=$this->datadir.$dir;
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if (!file_exists($dir)) return true;
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if (!is_dir($dir) || is_link($dir)) return unlink($dir);
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foreach (scandir($dir) as $item) {
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if ($item == '.' || $item == '..') continue;
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if(is_file($dir.'/'.$item)){
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if(unlink($dir.'/'.$item)){
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$this->notifyObservers($dir.'/'.$item,OC_FILEACTION_DELETE);
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$this->clearFolderSizeCache($path);
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}
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}elseif(is_dir($dir.'/'.$item)){
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if (!$this->delTree($dirRelative. "/" . $item)){
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return false;
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};
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}
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}
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if($return=rmdir($dir)){
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$this->notifyObservers($dir,OC_FILEACTION_DELETE);
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$this->clearFolderSizeCache($path);
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}
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return $return;
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}
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public function find($path){
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$return=System::find($this->datadir.$path);
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foreach($return as &$file){
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$file=str_replace($file,$this->datadir,'');
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}
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return $return;
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}
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public function getTree($dir) {
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if(substr($dir,-1,1)=='/'){
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$dir=substr($dir,0,-1);
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}
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$tree=array();
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$tree[]=$dir;
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$dirRelative=$dir;
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$dir=$this->datadir.$dir;
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if (!file_exists($dir)) return true;
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foreach (scandir($dir) as $item) {
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if ($item == '.' || $item == '..') continue;
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if(is_file($dir.'/'.$item)){
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$tree[]=$dirRelative.'/'.$item;
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}elseif(is_dir($dir.'/'.$item)){
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if ($subTree=$this->getTree($dirRelative. "/" . $item)){
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$tree=array_merge($tree,$subTree);
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}
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}
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}
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return $tree;
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}
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public function hash($type,$path,$raw){
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if($return=hash_file($type,$this->datadir.$path,$raw)){
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$this->notifyObservers($path,OC_FILEACTION_READ);
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}
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return $return;
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}
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/**
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* @brief get the size of folder and it's content
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* @param string $path file path
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* @return int size of folder and it's content
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*/
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public function getFolderSize($path){
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$query=OC_DB::prepare("SELECT size FROM *PREFIX*foldersize WHERE path=?");
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$size=$query->execute(array($path))->fetchAll();
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if(count($size)>0){// we already the size, just return it
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return $size[0]['size'];
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}else{//the size of the folder isn't know, calulate it
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return $this->calculateFolderSize($path);
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}
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}
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/**
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* @brief calulate the size of folder and it's content and cache it
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* @param string $path file path
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* @return int size of folder and it's content
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*/
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public function calculateFolderSize($path){
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if($this->is_file($path)){
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$path=dirname($path);
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}
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$path=str_replace('//','/',$path);
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if($this->is_dir($path) and substr($path,-1)!='/'){
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$path.='/';
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}
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error_log("calc: $path");
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$size=0;
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if ($dh = $this->opendir($path)) {
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$query=OC_DB::prepare("SELECT size FROM *PREFIX*foldersize WHERE path=?");
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$hasSize=$query->execute(array($path))->fetchAll();
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if(count($hasSize)>0){// yes, update it
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$query=OC_DB::prepare("UPDATE *PREFIX*foldersize SET size=? WHERE path=?");
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$result=$query->execute(array($size,$path));
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$size+=$hasSize[0]['size'];
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}else{// no insert it
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while (($filename = readdir($dh)) !== false) {
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if($filename!='.' and $filename!='..'){
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$subFile=$path.'/'.$filename;
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if($this->is_file($subFile)){
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$size+=$this->filesize($subFile);
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}else{
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|
$size+=$this->calculateFolderSize($subFile);
|
|
}
|
|
}
|
|
}
|
|
$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)!='/'){
|
|
$path.='/';
|
|
}
|
|
error_log($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);
|
|
}
|
|
}
|
|
}
|
|
?>
|