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<?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;
class FTP extends \OC\Files\Storage\StreamWrapper{
private $password;
private $user;
private $host;
private $secure;
private $root;
private static $tempFiles=array();
public function __construct($params) {
if (isset($params['host']) && isset($params['user']) && isset($params['password'])) {
$this->host=$params['host'];
$this->user=$params['user'];
$this->password=$params['password'];
if (isset($params['secure'])) {
if (is_string($params['secure'])) {
$this->secure = ($params['secure'] === 'true');
} else {
$this->secure = (bool)$params['secure'];
}
} else {
$this->secure = false;
}
$this->root=isset($params['root'])?$params['root']:'/';
if ( ! $this->root || $this->root[0]!='/') {
$this->root='/'.$this->root;
}
if (substr($this->root, -1) !== '/') {
$this->root .= '/';
}
} else {
throw new \Exception();
}
}
public function getId(){
return 'ftp::' . $this->user . '@' . $this->host . '/' . $this->root;
}
/**
* construct the ftp url
* @param string $path
* @return string
*/
public function constructUrl($path) {
$url='ftp';
if ($this->secure) {
$url.='s';
}
$url.='://'.$this->user.':'.$this->password.'@'.$this->host.$this->root.$path;
return $url;
}
/**
* Unlinks file or directory
* @param string @path
*/
public function unlink($path) {
if ($this->is_dir($path)) {
return $this->rmdir($path);
}
else {
$url = $this->constructUrl($path);
$result = unlink($url);
clearstatcache(true, $url);
return $result;
}
}
public function fopen($path,$mode) {
switch($mode) {
case 'r':
case 'rb':
case 'w':
case 'wb':
case 'a':
case 'ab':
//these are supported by the wrapper
$context = stream_context_create(array('ftp' => array('overwrite' => true)));
return fopen($this->constructUrl($path), $mode, false, $context);
case 'r+':
case 'w+':
case 'wb+':
case 'a+':
case 'x':
case 'x+':
case 'c':
case 'c+':
//emulate these
if (strrpos($path, '.')!==false) {
$ext=substr($path, strrpos($path, '.'));
} else {
$ext='';
}
$tmpFile=\OCP\Files::tmpFile($ext);
\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
if ($this->file_exists($path)) {
$this->getFile($path, $tmpFile);
}
self::$tempFiles[$tmpFile]=$path;
return fopen('close://'.$tmpFile, $mode);
}
return false;
}
public function writeBack($tmpFile) {
if (isset(self::$tempFiles[$tmpFile])) {
$this->uploadFile($tmpFile, self::$tempFiles[$tmpFile]);
unlink($tmpFile);
}
}
}
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