129 lines
4.0 KiB
PHP
129 lines
4.0 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Lukas Reschke <lukas@statuscode.ch>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
* @author Olivier Paroz <github@oparoz.com>
|
|
* @author Robin Appelman <robin@icewind.nl>
|
|
* @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_Sharing\External;
|
|
|
|
use OC\ForbiddenException;
|
|
use OCP\Files\NotFoundException;
|
|
use OCP\Files\StorageInvalidException;
|
|
use OCP\Files\StorageNotAvailableException;
|
|
|
|
class Scanner extends \OC\Files\Cache\Scanner {
|
|
/** @var \OCA\Files_Sharing\External\Storage */
|
|
protected $storage;
|
|
|
|
/** {@inheritDoc} */
|
|
public function scan($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1, $lock = true) {
|
|
if(!$this->storage->remoteIsOwnCloud()) {
|
|
return parent::scan($path, $recursive, $recursive, $lock);
|
|
}
|
|
|
|
$this->scanAll();
|
|
}
|
|
|
|
/**
|
|
* Scan a single file and store it in the cache.
|
|
* If an exception happened while accessing the external storage,
|
|
* the storage will be checked for availability and removed
|
|
* if it is not available any more.
|
|
*
|
|
* @param string $file file to scan
|
|
* @param int $reuseExisting
|
|
* @param int $parentId
|
|
* @param array | null $cacheData existing data in the cache for the file to be scanned
|
|
* @param bool $lock set to false to disable getting an additional read lock during scanning
|
|
* @return array an array of metadata of the scanned file
|
|
*/
|
|
public function scanFile($file, $reuseExisting = 0, $parentId = -1, $cacheData = null, $lock = true) {
|
|
try {
|
|
return parent::scanFile($file, $reuseExisting);
|
|
} catch (ForbiddenException $e) {
|
|
$this->storage->checkStorageAvailability();
|
|
} catch (NotFoundException $e) {
|
|
// if the storage isn't found, the call to
|
|
// checkStorageAvailable() will verify it and remove it
|
|
// if appropriate
|
|
$this->storage->checkStorageAvailability();
|
|
} catch (StorageInvalidException $e) {
|
|
$this->storage->checkStorageAvailability();
|
|
} catch (StorageNotAvailableException $e) {
|
|
$this->storage->checkStorageAvailability();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks the remote share for changes.
|
|
* If changes are available, scan them and update
|
|
* the cache.
|
|
* @throws NotFoundException
|
|
* @throws StorageInvalidException
|
|
* @throws \Exception
|
|
*/
|
|
public function scanAll() {
|
|
try {
|
|
$data = $this->storage->getShareInfo();
|
|
} catch (\Exception $e) {
|
|
$this->storage->checkStorageAvailability();
|
|
throw new \Exception(
|
|
'Error while scanning remote share: "' .
|
|
$this->storage->getRemote() . '" ' .
|
|
$e->getMessage()
|
|
);
|
|
}
|
|
if ($data['status'] === 'success') {
|
|
$this->addResult($data['data'], '');
|
|
} else {
|
|
throw new \Exception(
|
|
'Error while scanning remote share: "' .
|
|
$this->storage->getRemote() . '"'
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param array $data
|
|
* @param string $path
|
|
*/
|
|
private function addResult($data, $path) {
|
|
$id = $this->cache->put($path, $data);
|
|
if (isset($data['children'])) {
|
|
$children = [];
|
|
foreach ($data['children'] as $child) {
|
|
$children[$child['name']] = true;
|
|
$this->addResult($child, ltrim($path . '/' . $child['name'], '/'));
|
|
}
|
|
|
|
$existingCache = $this->cache->getFolderContentsById($id);
|
|
foreach ($existingCache as $existingChild) {
|
|
// if an existing child is not in the new data, remove it
|
|
if (!isset($children[$existingChild['name']])) {
|
|
$this->cache->remove(ltrim($path . '/' . $existingChild['name'], '/'));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|