- <?php
- /**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Björn Schießle <bjoern@schiessle.org>
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author Felix Moeller <mail@felixmoeller.de>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Philipp Kapfer <philipp.kapfer@gmx.at>
- * @author Robin Appelman <robin@icewind.nl>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- * @author Senorsen <senorsen.zhang@gmail.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-
- namespace OCA\Files_External\Lib\Storage;
-
- use Icewind\Streams\CallbackWrapper;
- use Icewind\Streams\IteratorDirectory;
- use Icewind\Streams\RetryWrapper;
-
- class FTP extends StreamWrapper {
- private $password;
- private $user;
- private $host;
- private $secure;
- private $root;
-
- public function __construct($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'])) {
- $this->secure = $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('Creating FTP storage failed');
- }
- }
-
- 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';
- }
- $url .= '://'.urlencode($this->user).':'.urlencode($this->password).'@'.$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(['ftp' => ['overwrite' => true]]);
- $handle = fopen($this->constructUrl($path), $mode, false, $context);
- return RetryWrapper::wrap($handle);
- 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 = '';
- }
- $tmpFile = \OC::$server->getTempManager()->getTemporaryFile();
- if ($this->file_exists($path)) {
- $this->getFile($path, $tmpFile);
- }
- $handle = fopen($tmpFile, $mode);
- return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
- $this->writeBack($tmpFile, $path);
- });
- }
- return false;
- }
-
- public function opendir($path) {
- $dh = parent::opendir($path);
- if (is_resource($dh)) {
- $files = [];
- while (($file = readdir($dh)) !== false) {
- if ($file != '.' && $file != '..' && strpos($file, '#') === false) {
- $files[] = $file;
- }
- }
- return IteratorDirectory::wrap($files);
- } else {
- return false;
- }
- }
-
-
- public function writeBack($tmpFile, $path) {
- $this->uploadFile($tmpFile, $path);
- unlink($tmpFile);
- }
-
- /**
- * check if php-ftp is installed
- */
- public static function checkDependencies() {
- if (function_exists('ftp_login')) {
- return true;
- } else {
- return ['ftp'];
- }
- }
- }
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