356 lines
10 KiB
PHP
356 lines
10 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Joas Schilling <coding@schilljs.com>
|
|
* @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 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 GuzzleHttp\Exception\RequestException;
|
|
use Icewind\Streams\CallbackWrapper;
|
|
use Icewind\Streams\IteratorDirectory;
|
|
use Icewind\Streams\RetryWrapper;
|
|
use OCP\Files\StorageNotAvailableException;
|
|
|
|
require_once __DIR__ . '/../../../3rdparty/Dropbox/autoload.php';
|
|
|
|
class Dropbox extends \OC\Files\Storage\Common {
|
|
|
|
private $dropbox;
|
|
private $root;
|
|
private $id;
|
|
private $metaData = array();
|
|
private $oauth;
|
|
|
|
public function __construct($params) {
|
|
if (isset($params['configured']) && $params['configured'] === 'true'
|
|
&& isset($params['app_key'])
|
|
&& isset($params['app_secret'])
|
|
&& isset($params['token'])
|
|
&& isset($params['token_secret'])
|
|
) {
|
|
$this->root = isset($params['root']) ? $params['root'] : '';
|
|
$this->id = 'dropbox::'.$params['app_key'] . $params['token']. '/' . $this->root;
|
|
$this->oauth = new \Dropbox_OAuth_Curl($params['app_key'], $params['app_secret']);
|
|
$this->oauth->setToken($params['token'], $params['token_secret']);
|
|
// note: Dropbox_API connection is lazy
|
|
$this->dropbox = new \Dropbox_API($this->oauth, 'auto');
|
|
} else {
|
|
throw new \Exception('Creating Dropbox storage failed');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param string $path
|
|
*/
|
|
private function deleteMetaData($path) {
|
|
$path = ltrim($this->root.$path, '/');
|
|
if (isset($this->metaData[$path])) {
|
|
unset($this->metaData[$path]);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
private function setMetaData($path, $metaData) {
|
|
$this->metaData[ltrim($path, '/')] = $metaData;
|
|
}
|
|
|
|
/**
|
|
* Returns the path's metadata
|
|
* @param string $path path for which to return the metadata
|
|
* @param bool $list if true, also return the directory's contents
|
|
* @return mixed directory contents if $list is true, file metadata if $list is
|
|
* false, null if the file doesn't exist or "false" if the operation failed
|
|
*/
|
|
private function getDropBoxMetaData($path, $list = false) {
|
|
$path = ltrim($this->root.$path, '/');
|
|
if ( ! $list && isset($this->metaData[$path])) {
|
|
return $this->metaData[$path];
|
|
} else {
|
|
if ($list) {
|
|
try {
|
|
$response = $this->dropbox->getMetaData($path);
|
|
} catch (\Dropbox_Exception_Forbidden $e) {
|
|
throw new StorageNotAvailableException('Dropbox API rate limit exceeded', StorageNotAvailableException::STATUS_ERROR, $e);
|
|
} catch (\Exception $exception) {
|
|
\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
|
|
return false;
|
|
}
|
|
$contents = array();
|
|
if ($response && isset($response['contents'])) {
|
|
// Cache folder's contents
|
|
foreach ($response['contents'] as $file) {
|
|
if (!isset($file['is_deleted']) || !$file['is_deleted']) {
|
|
$this->setMetaData($path.'/'.basename($file['path']), $file);
|
|
$contents[] = $file;
|
|
}
|
|
}
|
|
unset($response['contents']);
|
|
}
|
|
if (!isset($response['is_deleted']) || !$response['is_deleted']) {
|
|
$this->setMetaData($path, $response);
|
|
}
|
|
// Return contents of folder only
|
|
return $contents;
|
|
} else {
|
|
try {
|
|
$requestPath = $path;
|
|
if ($path === '.') {
|
|
$requestPath = '';
|
|
}
|
|
|
|
$response = $this->dropbox->getMetaData($requestPath, 'false');
|
|
if (!isset($response['is_deleted']) || !$response['is_deleted']) {
|
|
$this->setMetaData($path, $response);
|
|
return $response;
|
|
}
|
|
return null;
|
|
} catch (\Dropbox_Exception_Forbidden $e) {
|
|
throw new StorageNotAvailableException('Dropbox API rate limit exceeded', StorageNotAvailableException::STATUS_ERROR, $e);
|
|
} catch (\Exception $exception) {
|
|
if ($exception instanceof \Dropbox_Exception_NotFound) {
|
|
// don't log, might be a file_exist check
|
|
return false;
|
|
}
|
|
\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public function getId(){
|
|
return $this->id;
|
|
}
|
|
|
|
public function mkdir($path) {
|
|
$path = $this->root.$path;
|
|
try {
|
|
$this->dropbox->createFolder($path);
|
|
return true;
|
|
} catch (\Exception $exception) {
|
|
\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function rmdir($path) {
|
|
return $this->unlink($path);
|
|
}
|
|
|
|
public function opendir($path) {
|
|
$contents = $this->getDropBoxMetaData($path, true);
|
|
if ($contents !== false) {
|
|
$files = array();
|
|
foreach ($contents as $file) {
|
|
$files[] = basename($file['path']);
|
|
}
|
|
return IteratorDirectory::wrap($files);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function stat($path) {
|
|
$metaData = $this->getDropBoxMetaData($path);
|
|
if ($metaData) {
|
|
$stat['size'] = $metaData['bytes'];
|
|
$stat['atime'] = time();
|
|
$stat['mtime'] = (isset($metaData['modified'])) ? strtotime($metaData['modified']) : time();
|
|
return $stat;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function filetype($path) {
|
|
if ($path === '' || $path === '/') {
|
|
return 'dir';
|
|
} else {
|
|
$metaData = $this->getDropBoxMetaData($path);
|
|
if ($metaData) {
|
|
if ($metaData['is_dir'] === 'true') {
|
|
return 'dir';
|
|
} else {
|
|
return 'file';
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function file_exists($path) {
|
|
if ($path === '' || $path === '/') {
|
|
return true;
|
|
}
|
|
if ($this->getDropBoxMetaData($path)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function unlink($path) {
|
|
try {
|
|
$this->dropbox->delete($this->root.$path);
|
|
$this->deleteMetaData($path);
|
|
return true;
|
|
} catch (\Exception $exception) {
|
|
\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function rename($path1, $path2) {
|
|
try {
|
|
// overwrite if target file exists and is not a directory
|
|
$destMetaData = $this->getDropBoxMetaData($path2);
|
|
if (isset($destMetaData) && $destMetaData !== false && !$destMetaData['is_dir']) {
|
|
$this->unlink($path2);
|
|
}
|
|
$this->dropbox->move($this->root.$path1, $this->root.$path2);
|
|
$this->deleteMetaData($path1);
|
|
return true;
|
|
} catch (\Exception $exception) {
|
|
\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function copy($path1, $path2) {
|
|
$path1 = $this->root.$path1;
|
|
$path2 = $this->root.$path2;
|
|
try {
|
|
$this->dropbox->copy($path1, $path2);
|
|
return true;
|
|
} catch (\Exception $exception) {
|
|
\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function fopen($path, $mode) {
|
|
$path = $this->root.$path;
|
|
switch ($mode) {
|
|
case 'r':
|
|
case 'rb':
|
|
try {
|
|
// slashes need to stay
|
|
$encodedPath = str_replace('%2F', '/', rawurlencode(trim($path, '/')));
|
|
$downloadUrl = 'https://api-content.dropbox.com/1/files/auto/' . $encodedPath;
|
|
$headers = $this->oauth->getOAuthHeader($downloadUrl, [], 'GET');
|
|
|
|
$client = \OC::$server->getHTTPClientService()->newClient();
|
|
try {
|
|
$response = $client->get($downloadUrl, [
|
|
'headers' => $headers,
|
|
'stream' => true,
|
|
]);
|
|
} catch (RequestException $e) {
|
|
if (!is_null($e->getResponse())) {
|
|
if ($e->getResponse()->getStatusCode() === 404) {
|
|
return false;
|
|
} else {
|
|
throw $e;
|
|
}
|
|
} else {
|
|
throw $e;
|
|
}
|
|
}
|
|
|
|
$handle = $response->getBody();
|
|
return RetryWrapper::wrap($handle);
|
|
} catch (\Exception $exception) {
|
|
\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
|
|
return false;
|
|
}
|
|
case 'w':
|
|
case 'wb':
|
|
case 'a':
|
|
case 'ab':
|
|
case 'r+':
|
|
case 'w+':
|
|
case 'wb+':
|
|
case 'a+':
|
|
case 'x':
|
|
case 'x+':
|
|
case 'c':
|
|
case 'c+':
|
|
if (strrpos($path, '.') !== false) {
|
|
$ext = substr($path, strrpos($path, '.'));
|
|
} else {
|
|
$ext = '';
|
|
}
|
|
$tmpFile = \OCP\Files::tmpFile($ext);
|
|
if ($this->file_exists($path)) {
|
|
$source = $this->fopen($path, 'r');
|
|
file_put_contents($tmpFile, $source);
|
|
}
|
|
$handle = fopen($tmpFile, $mode);
|
|
return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
|
|
$this->writeBack($tmpFile, $path);
|
|
});
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function writeBack($tmpFile, $path) {
|
|
$handle = fopen($tmpFile, 'r');
|
|
try {
|
|
$this->dropbox->putFile($path, $handle);
|
|
unlink($tmpFile);
|
|
$this->deleteMetaData($path);
|
|
} catch (\Exception $exception) {
|
|
\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
|
|
}
|
|
}
|
|
|
|
public function free_space($path) {
|
|
try {
|
|
$info = $this->dropbox->getAccountInfo();
|
|
return $info['quota_info']['quota'] - $info['quota_info']['normal'];
|
|
} catch (\Exception $exception) {
|
|
\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function touch($path, $mtime = null) {
|
|
if ($this->file_exists($path)) {
|
|
return false;
|
|
} else {
|
|
$this->file_put_contents($path, '');
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* check if curl is installed
|
|
*/
|
|
public static function checkDependencies() {
|
|
return true;
|
|
}
|
|
|
|
}
|