nextcloud/apps/files_external/lib/smb.php
Vincent Petry 5b6d1d79d0 Fixed SMB file deletion success detection
Since unlink() smb4php doesn't return true on deletion success, we need
to check whether the file was deleted to confirm success.

Fixes #5866
2013-11-19 15:05:11 +01:00

131 lines
3.3 KiB
PHP

<?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;
require_once __DIR__ . '/../3rdparty/smb4php/smb.php';
class SMB extends \OC\Files\Storage\StreamWrapper{
private $password;
private $user;
private $host;
private $root;
private $share;
public function __construct($params) {
if (isset($params['host']) && isset($params['user']) && isset($params['password']) && isset($params['share'])) {
$this->host=$params['host'];
$this->user=$params['user'];
$this->password=$params['password'];
$this->share=$params['share'];
$this->root=isset($params['root'])?$params['root']:'/';
if ( ! $this->root || $this->root[0]!='/') {
$this->root='/'.$this->root;
}
if (substr($this->root, -1, 1)!='/') {
$this->root.='/';
}
if ( ! $this->share || $this->share[0]!='/') {
$this->share='/'.$this->share;
}
if (substr($this->share, -1, 1)=='/') {
$this->share = substr($this->share, 0, -1);
}
} else {
throw new \Exception();
}
}
public function getId(){
return 'smb::' . $this->user . '@' . $this->host . '/' . $this->share . '/' . $this->root;
}
public function constructUrl($path) {
if (substr($path, -1)=='/') {
$path = substr($path, 0, -1);
}
if (substr($path, 0, 1)=='/') {
$path = substr($path, 1);
}
// remove trailing dots which some versions of samba don't seem to like
$path = rtrim($path, '.');
$path = urlencode($path);
$user = urlencode($this->user);
$pass = urlencode($this->password);
return 'smb://'.$user.':'.$pass.'@'.$this->host.$this->share.$this->root.$path;
}
public function stat($path) {
if ( ! $path and $this->root=='/') {//mtime doesn't work for shares
$stat=stat($this->constructUrl($path));
if (empty($stat)) {
return false;
}
$mtime=$this->shareMTime();
$stat['mtime']=$mtime;
return $stat;
} else {
$stat = stat($this->constructUrl($path));
// smb4php can return an empty array if the connection could not be established
if (empty($stat)) {
return false;
}
return $stat;
}
}
/**
* Unlinks file
* @param string @path
*/
public function unlink($path) {
unlink($this->constructUrl($path));
clearstatcache();
// smb4php still returns false even on success so
// check here whether file was really deleted
return !file_exists($path);
}
/**
* check if a file or folder has been updated since $time
* @param string $path
* @param int $time
* @return bool
*/
public function hasUpdated($path,$time) {
if(!$path and $this->root=='/') {
// mtime doesn't work for shares, but giving the nature of the backend,
// doing a full update is still just fast enough
return true;
} else {
$actualTime=$this->filemtime($path);
return $actualTime>$time;
}
}
/**
* get the best guess for the modification time of the share
*/
private function shareMTime() {
$dh=$this->opendir('');
$lastCtime=0;
if(is_resource($dh)) {
while (($file = readdir($dh)) !== false) {
if ($file!='.' and $file!='..') {
$ctime=$this->filemtime($file);
if ($ctime>$lastCtime) {
$lastCtime=$ctime;
}
}
}
}
return $lastCtime;
}
}