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nextcloud/inc/lib_remotestorage.php

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<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @copyright 2010 Frank Karlitschek karlitschek@kde.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
class OC_FILESTORAGE_REMOTE extends OC_FILESTORAGE{
private $url;
private $username;
private $password;
private $remote=false;
private $statCache;
private $statCacheDir=false;
private $changed=array();
private function cacheDir($dir){
if($this->statCacheDir!=$dir or $this->statCacheDir===false){
$this->statCache=$this->remote->getFiles($dir);
$keys=array_keys($this->statCache);
$this->statCacheDir=$dir;
}
}
public function __construct($arguments){
$this->url=$arguments['url'];
$this->username=$arguments['username'];
$this->password=$arguments['password'];
}
private function connect(){
if($this->remote===false){
$this->remote=OC_CONNECT::connect($this->url,$this->username,$this->password);
}
}
public function mkdir($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$return=$this->remote->newFile($parent,$name,'dir');
if($return){
$this->notifyObservers($path,OC_FILEACTION_CREATE);
}
return $return;
}
public function rmdir($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$return=$this->remote->delete($parent,$name);
if($return){
$this->notifyObservers($path,OC_FILEACTION_DELETE);
}
return $return;
}
public function opendir($path){
$this->connect();
$this->cacheDir($path);
$dirs=array_keys($this->statCache);
$id=uniqid();
global $FAKEDIRS;
$FAKEDIRS[$id]=$dirs;
if($return=opendir("fakedir://$id")){
$this->notifyObservers($path,OC_FILEACTION_READ);
}
return $return;
}
public function is_dir($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($path);
if($path=='' or $path=='/'){
return true;
}
if(!isset($this->statCache[$name])){
return false;
}
return ($this->statCache[$name]['type'=='dir']);
}
public function is_file($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return false;
}
return ($this->statCache[$name]['type'!='dir']);
}
public function stat($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return $false;
}
return $this->statCache[$name];
}
public function filetype($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return false;
}
return $this->statCache[$name]['type'];
}
public function filesize($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return $false;
}
return $this->statCache[$name]['size'];
}
public function is_readable($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return false;
}
return $this->statCache[$name]['readable'];
}
public function is_writeable($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return false;
}
return $this->statCache[$name]['writeable'];
}
public function file_exists($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
return isset($this->statCache[$name]);
}
public function readfile($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$file=$this->remote->getFile($parent,$name);
readfile($file);
unlink($file);
}
public function filectime($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return false;
}
return $this->statCache[$name]['ctime'];
}
public function filemtime($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return false;
}
return $this->statCache[$name]['mtime'];
}
public function fileatime($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return false;
}
return $this->statCache[$name]['atime'];
}
public function file_get_contents($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$file=$this->remote->getFile($parent,$name);
file_get_contents($file);
unlink($file);
}
public function file_put_contents($path,$data){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$file=$this->remote->getFile($parent,$name);
$file=tempnam(sys_get_temp_dir(),'oc_');
file_put_contents($file,$data);
if($return=$this->remote->sendTmpFile($file,$parent,$name)){
$this->notifyObservers($path,OC_FILEACTION_WRITE);
}
}
public function unlink($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
if($return=$this->remote->delete($paren,$name)){
$this->notifyObservers($path,OC_FILEACTION_DELETE);
}
return $return;
}
public function rename($path1,$path2){
$this->connect();
$parent1=dirname($path1);
$name1=substr($path1,strlen($parent1)+1);
$parent2=dirname($path2);
$name2=substr($path2,strlen($parent2)+1);
if($return=$this->remote->move($parent1,$name1,$parent2,$name2)){
$this->notifyObservers($path1.'->'.$path2,OC_FILEACTION_RENAME);
}
return $return;
}
public function copy($path1,$path2){
$this->connect();
$parent1=dirname($path1);
$name1=substr($path1,strlen($parent1)+1);
$parent2=dirname($path2);
$name2=substr($path2,strlen($parent2)+1);
if($return=$this->copy->rename($parent1,$name1,$parent2,$name2)){
$this->notifyObservers($path1.'->'.$path2,OC_FILEACTION_RENAME);
}
return $return;
}
public function fopen($path,$mode){
$this->connect();
$changed=false;
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
$file=$this->remote->getFile($parent,$name);
if($return=fopen($file,$mode)){
switch($mode){
case 'r':
$this->notifyObservers($path,OC_FILEACTION_READ);
break;
case 'r+':
case 'w+':
case 'x+':
case 'a+':
$this->notifyObservers($path,OC_FILEACTION_READ | OC_FILEACTION_WRITE);
$this->changed[]=array('dir'=>$parent,'file'=>$name,'tmp'=>$file);
break;
case 'w':
case 'x':
case 'a':
$this->notifyObservers($path,OC_FILEACTION_WRITE);
$this->changed[]=array('dir'=>$parent,'file'=>$name,'tmp'=>$file);
break;
}
}
return $return;
}
public function getMimeType($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
if(substr($name,0,1)=='/'){
$name=substr($name,1);
}
$this->cacheDir($parent);
if(!isset($this->statCache[$name])){
return false;
}
return $this->statCache[$name]['mime'];
}
public function toTmpFile($path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
if(substr($name,0,1)=='/'){
$name=substr($name,1);
}
$filename=$this->remote->getFile($parent,$name);
if($filename){
$this->notifyObservers($path,OC_FILEACTION_READ);
return $filename;
}else{
return false;
}
}
public function fromTmpFile($tmpFile,$path){
$this->connect();
$parent=dirname($path);
$name=substr($path,strlen($parent)+1);
if($this->remote->sendTmpFile($tmpFile,$parent,$name)){
$this->notifyObservers($path,OC_FILEACTION_CREATE);
return true;
}else{
return false;
}
}
public function delTree($dir) {
$this->connect();
$parent=dirname($dir);
$name=substr($dir,strlen($parent)+1);
$return=$this->remote->delete($parent,$name);
if($return=rmdir($dir)){
$this->notifyObservers($dir,OC_FILEACTION_DELETE);
}
return $return;
}
public function find($path){
return $this->getTree($path);
}
public function getTree($dir) {
$this->connect();
if($return=$this->remote->getTree($dir)){
$this->notifyObservers($dir,OC_FILEACTION_READ);
}
return $return;
}
public function __destruct(){
foreach($this->changed as $changed){
$this->remote->sendTmpFile($changed['tmp'],$changed['dir'],$changed['file']);
}
}
}
?>
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