nextcloud/apps/files_external/lib/ftp.php

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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.
*/
class OC_FileStorage_FTP extends OC_FileStorage_StreamWrapper{
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private $password;
private $user;
private $host;
private $secure;
private $root;
private static $tempFiles=array();
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public function __construct($params) {
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$this->host=$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{
$this->secure = false;
}
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$this->root=isset($params['root'])?$params['root']:'/';
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if(!$this->root || $this->root[0]!='/') {
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$this->root='/'.$this->root;
}
//create the root folder if necesary
if (!$this->is_dir('')) {
$this->mkdir('');
}
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}
/**
* construct the ftp url
* @param string path
* @return string
*/
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public function constructUrl($path) {
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$url='ftp';
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if($this->secure) {
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$url.='s';
}
$url.='://'.$this->user.':'.$this->password.'@'.$this->host.$this->root.$path;
return $url;
}
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public function fopen($path, $mode) {
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switch($mode) {
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case 'r':
case 'rb':
case 'w':
case 'wb':
case 'a':
case 'ab':
//these are supported by the wrapper
$context = stream_context_create(array('ftp' => array('overwrite' => true)));
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return fopen($this->constructUrl($path), $mode, false, $context);
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case 'r+':
case 'w+':
case 'wb+':
case 'a+':
case 'x':
case 'x+':
case 'c':
case 'c+':
//emulate these
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if(strrpos($path, '.')!==false) {
$ext=substr($path, strrpos($path, '.'));
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}else{
$ext='';
}
$tmpFile=OCP\Files::tmpFile($ext);
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OC_CloseStreamWrapper::$callBacks[$tmpFile]=array($this, 'writeBack');
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if($this->file_exists($path)) {
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$this->getFile($path, $tmpFile);
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}
self::$tempFiles[$tmpFile]=$path;
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return fopen('close://'.$tmpFile, $mode);
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}
}
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public function writeBack($tmpFile) {
if(isset(self::$tempFiles[$tmpFile])) {
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$this->uploadFile($tmpFile, self::$tempFiles[$tmpFile]);
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unlink($tmpFile);
}
}
}