ecommun / owncloud_ynh

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sources/apps/files_external/lib/ftp.php 2.8 KB
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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;
  			}
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  			if (substr($this->root, -1) !== '/') {
  				$this->root .= '/';
  			}
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  		} 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 $url;
  	}
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  	/**
  	 * Unlinks file or directory
  	 * @param string @path
  	 */
  	public function unlink($path) {
  		if ($this->is_dir($path)) {
  			return $this->rmdir($path);
  		}
  		else {
  			$url = $this->constructUrl($path);
  			$result = unlink($url);
  			clearstatcache(true, $url);
  			return $result;
  		}
  	}
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  	public function fopen($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);
  		}
  	}
  }