158 lines
4 KiB
PHP
158 lines
4 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Björn Schießle <bjoern@schiessle.org>
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* @author Felix Moeller <mail@felixmoeller.de>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Michael Gapczynski <GapczynskiM@gmail.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Philipp Kapfer <philipp.kapfer@gmx.at>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Robin McCorkell <robin@mccorkell.me.uk>
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* @author Senorsen <senorsen.zhang@gmail.com>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OCA\Files_External\Lib\Storage;
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use Icewind\Streams\CallbackWrapper;
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use Icewind\Streams\RetryWrapper;
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class FTP extends StreamWrapper{
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private $password;
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private $user;
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private $host;
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private $secure;
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private $root;
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private static $tempFiles=array();
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public function __construct($params) {
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if (isset($params['host']) && isset($params['user']) && isset($params['password'])) {
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$this->host=$params['host'];
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$this->user=$params['user'];
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$this->password=$params['password'];
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if (isset($params['secure'])) {
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$this->secure = $params['secure'];
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} else {
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$this->secure = false;
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}
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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) !== '/') {
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$this->root .= '/';
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}
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} else {
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throw new \Exception('Creating FTP storage failed');
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}
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}
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public function getId(){
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return 'ftp::' . $this->user . '@' . $this->host . '/' . $this->root;
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}
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/**
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* construct the ftp url
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* @param string $path
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* @return string
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*/
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public function constructUrl($path) {
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$url='ftp';
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if ($this->secure) {
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$url.='s';
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}
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$url.='://'.urlencode($this->user).':'.urlencode($this->password).'@'.$this->host.$this->root.$path;
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return $url;
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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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return $this->rmdir($path);
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}
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else {
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$url = $this->constructUrl($path);
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$result = unlink($url);
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clearstatcache(true, $url);
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return $result;
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}
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}
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public function fopen($path,$mode) {
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switch($mode) {
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case 'r':
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case 'rb':
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case 'w':
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case 'wb':
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case 'a':
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case 'ab':
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//these are supported by the wrapper
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$context = stream_context_create(array('ftp' => array('overwrite' => true)));
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$handle = fopen($this->constructUrl($path), $mode, false, $context);
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return RetryWrapper::wrap($handle);
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case 'r+':
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case 'w+':
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case 'wb+':
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case 'a+':
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case 'x':
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case 'x+':
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case 'c':
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case 'c+':
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//emulate these
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if (strrpos($path, '.')!==false) {
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$ext=substr($path, strrpos($path, '.'));
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} else {
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$ext='';
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}
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$tmpFile=\OCP\Files::tmpFile($ext);
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if ($this->file_exists($path)) {
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$this->getFile($path, $tmpFile);
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}
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$handle = fopen($tmpFile, $mode);
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return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
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$this->writeBack($tmpFile, $path);
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});
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}
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return false;
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}
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public function writeBack($tmpFile, $path) {
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$this->uploadFile($tmpFile, $path);
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unlink($tmpFile);
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}
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/**
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* check if php-ftp is installed
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*/
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public static function checkDependencies() {
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if (function_exists('ftp_login')) {
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return(true);
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} else {
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return array('ftp');
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}
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}
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}
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