97 lines
2.7 KiB
PHP
97 lines
2.7 KiB
PHP
<?php
|
|
/**
|
|
* Copyright (c) 2014 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 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 $storage;
|
|
|
|
public function scan($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1) {
|
|
$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 $reuseExisting
|
|
* @return array an array of metadata of the scanned file
|
|
*/
|
|
public function scanFile($file, $reuseExisting = 0) {
|
|
try {
|
|
return parent::scanFile($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.
|
|
*/
|
|
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: "' .
|
|
$this->storage->getRemote() . '"'
|
|
);
|
|
}
|
|
}
|
|
|
|
private function addResult($data, $path) {
|
|
$id = $this->cache->put($path, $data);
|
|
if (isset($data['children'])) {
|
|
$children = array();
|
|
foreach ($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'], '/'));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|