151 lines
3.7 KiB
PHP
151 lines
3.7 KiB
PHP
<?php
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/**
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* Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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namespace OC\Files\Storage;
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require_once __DIR__ . '/../3rdparty/smb4php/smb.php';
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class SMB extends \OC\Files\Storage\StreamWrapper{
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private $password;
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private $user;
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private $host;
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private $root;
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private $share;
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public function __construct($params) {
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if (isset($params['host']) && isset($params['user']) && isset($params['password']) && isset($params['share'])) {
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$this->host=$params['host'];
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$this->user=$params['user'];
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$this->password=$params['password'];
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$this->share=$params['share'];
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$this->root=isset($params['root'])?$params['root']:'/';
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if ( ! $this->root || $this->root[0]!='/') {
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$this->root='/'.$this->root;
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}
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if (substr($this->root, -1, 1)!='/') {
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$this->root.='/';
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}
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if ( ! $this->share || $this->share[0]!='/') {
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$this->share='/'.$this->share;
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}
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if (substr($this->share, -1, 1)=='/') {
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$this->share = substr($this->share, 0, -1);
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}
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} else {
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throw new \Exception('Invalid configuration');
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}
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}
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public function getId(){
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return 'smb::' . $this->user . '@' . $this->host . '/' . $this->share . '/' . $this->root;
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}
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public function constructUrl($path) {
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if (substr($path, -1)=='/') {
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$path = substr($path, 0, -1);
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}
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if (substr($path, 0, 1)=='/') {
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$path = substr($path, 1);
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}
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// remove trailing dots which some versions of samba don't seem to like
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$path = rtrim($path, '.');
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$path = urlencode($path);
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$user = urlencode($this->user);
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$pass = urlencode($this->password);
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return 'smb://'.$user.':'.$pass.'@'.$this->host.$this->share.$this->root.$path;
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}
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public function stat($path) {
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if ( ! $path and $this->root=='/') {//mtime doesn't work for shares
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$stat=stat($this->constructUrl($path));
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if (empty($stat)) {
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return false;
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}
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$mtime=$this->shareMTime();
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$stat['mtime']=$mtime;
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return $stat;
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} else {
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$stat = stat($this->constructUrl($path));
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// smb4php can return an empty array if the connection could not be established
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if (empty($stat)) {
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return false;
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}
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return $stat;
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}
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}
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/**
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* Unlinks file or directory
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* @param string $path
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*/
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public function unlink($path) {
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if ($this->is_dir($path)) {
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$this->rmdir($path);
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}
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else {
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$url = $this->constructUrl($path);
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unlink($url);
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clearstatcache(false, $url);
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}
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// smb4php still returns false even on success so
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// check here whether file was really deleted
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return !file_exists($path);
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}
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/**
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* check if a file or folder has been updated since $time
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* @param string $path
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* @param int $time
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* @return bool
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*/
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public function hasUpdated($path,$time) {
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if(!$path and $this->root=='/') {
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// mtime doesn't work for shares, but giving the nature of the backend,
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// doing a full update is still just fast enough
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return true;
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} else {
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$actualTime=$this->filemtime($path);
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return $actualTime>$time;
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}
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}
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/**
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* get the best guess for the modification time of the share
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*/
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private function shareMTime() {
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$dh=$this->opendir('');
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$lastCtime=0;
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if(is_resource($dh)) {
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while (($file = readdir($dh)) !== false) {
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if ($file!='.' and $file!='..') {
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$ctime=$this->filemtime($file);
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if ($ctime>$lastCtime) {
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$lastCtime=$ctime;
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}
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}
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}
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}
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return $lastCtime;
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}
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/**
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* check if smbclient is installed
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*/
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public static function checkDependencies() {
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if (function_exists('shell_exec')) {
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$output=shell_exec('command -v smbclient 2> /dev/null');
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if (!empty($output)) {
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return true;
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}
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}
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return array('smbclient');
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}
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}
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