-
Notifications
You must be signed in to change notification settings - Fork 2.1k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
2 changed files
with
248 additions
and
5 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,202 @@ | ||
| <?php | ||
| /** | ||
| * Copyright (c) 2014 Jörn Friedrich Dreyer <jfd@owncloud.com> | ||
| * This file is licensed under the Affero General Public License version 3 or | ||
| * later. | ||
| * See the COPYING-README file. | ||
| */ | ||
|
|
||
| namespace OCA\Files_External\Cache; | ||
|
|
||
| use OC\Files\Filesystem; | ||
| use OC\Hooks\BasicEmitter; | ||
| use OCP\Config; | ||
|
|
||
| /** | ||
| * Class Scanner | ||
| */ | ||
| class Scanner extends \OC\Files\Cache\Scanner { | ||
|
|
||
| public function __construct (\OC\Files\Storage\Storage $storage) { | ||
| parent::__construct($storage); | ||
| } | ||
|
|
||
| /** | ||
| * get all the metadata of a file or folder | ||
| * * | ||
| * | ||
| * @param string $path | ||
| * @return array an array of metadata of the file | ||
| */ | ||
| public function getData($object) { | ||
| $data = array(); | ||
| if (isset($object['Key'])) { | ||
| $data['path'] = trim($object['Key'], '/'); | ||
| if (isset($object['ContentType'])) { | ||
| $data['mimetype'] = $object['ContentType']; | ||
| } else if (substr($object['Key'],-1) === '/') { | ||
| $data['mimetype'] = 'httpd/unix-directory'; | ||
| $data['etag'] = null; | ||
| } else { | ||
| $data['etag'] = $object['ETag']; | ||
| } | ||
| $data['mtime'] = strtotime($object['LastModified']); | ||
| if ($data['mtime'] === false) { | ||
| $data['mtime'] = -1; | ||
| } | ||
| $data['size'] = (int)$object['Size']; | ||
| $data['name'] = basename($data['path']); | ||
| $data['storage_mtime'] = $data['mtime']; | ||
| if (!isset($data['mimetype'])) { | ||
| $data['mimetype'] = \OC_Helper::getMimetypeDetector()->detectPath($data['name']); | ||
| } | ||
| $data['permissions'] = $this->storage->getPermissions($data['path']); | ||
| } else { | ||
| throw new \Exception('expected key in object'); | ||
| } | ||
| return $data; | ||
| } | ||
|
|
||
| /** | ||
| * scan a folder and all it's children | ||
| * | ||
| * @param string $path | ||
| * @param bool $recursive | ||
| * @param int $reuse | ||
| * @return array an array of the meta data of the scanned file or folder | ||
| */ | ||
| public function scan($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1) { | ||
| $params = array( | ||
| 'Bucket' => $this->storage->getBucket() | ||
| ); | ||
|
|
||
| //mark all storage_mtimes as unknown | ||
| $stmt = \OC::$server->getDatabaseConnection()->prepare( | ||
| 'UPDATE `*PREFIX*filecache` SET `storage_mtime` = ? WHERE `storage` = ?' | ||
| ); | ||
| $stmt->execute(array(-1, $this->cache->getNumericStorageId())); | ||
|
|
||
| $data = $this->getData(array('Key' => '/')); | ||
| $rootData = $this->cache->get(''); | ||
| if ($rootData) { | ||
| // remember rootId for size update after scanning | ||
| $rootId = $rootData['fileid']; | ||
| // Only update metadata that has changed | ||
| $newData = array_diff_assoc($data, $rootData); | ||
| } else { | ||
| $newData = $data; | ||
| } | ||
| if (!empty($newData)) { | ||
| // remember rootId for size update after scanning | ||
| $rootId = $this->addToCache('', $newData); | ||
| } | ||
|
|
||
| $previousParent = null; | ||
| $parentId = null; | ||
| $maxChildMTime = -1; | ||
| try { | ||
| // Since there are no real directories on S3, we fetch all objects | ||
| do { | ||
| // instead of the iterator, manually loop over the list ... | ||
| $objects = $this->storage->getConnection()->listObjects($params); | ||
| // ... so we get more than one directory | ||
| foreach ($objects['Contents'] as $object) { | ||
| $data = $this->getData($object); | ||
| if (/*$data['name'] === basename($path) | ||
| ||*/ self::isPartialFile($data['name']) | ||
| || Filesystem::isFileBlacklisted($data['name']) | ||
| ) { | ||
| continue; | ||
| } | ||
|
|
||
| $parent = dirname($data['path']); | ||
| if ($parent === '.' or $parent === '/') { | ||
| $parent = ''; | ||
| } | ||
| if ($data['mtime'] > $maxChildMTime) { | ||
| $maxChildMTime = $data['mtime']; | ||
| } | ||
| if ($previousParent !== $parent) { | ||
| if ($previousParent) { | ||
| $this->cache->calculateFolderSize($previousParent, | ||
| array('fileid' => $parentId, 'mimetype' => 'httpd/unix-directory', 'size' => -1) | ||
| ); | ||
| } | ||
| //update mtime of previous parent in cache | ||
| $this->updateCache($previousParent, | ||
| array('mtime' => $maxChildMTime, 'storage_mtime' => $maxChildMTime) | ||
| ); | ||
|
|
||
| // propagate mtime up the tree | ||
| $p = dirname($previousParent); | ||
| if ($p === '.') { | ||
| $p = ''; | ||
| } | ||
| do { | ||
| $pData = $this->cache->get($p); | ||
| if ($maxChildMTime > $pData['mtime']) { | ||
| $this->updateCache($pData['path'], | ||
| array('mtime' => $maxChildMTime, 'storage_mtime' => $maxChildMTime) | ||
| ); | ||
| } | ||
| $p = dirname($previousParent); | ||
| if ($p === '.') { | ||
| $p = ''; | ||
| } | ||
| } while ($p !== '' || $maxChildMTime > $pData['mtime'] ); | ||
|
|
||
| $maxChildMTime = -1; | ||
| $previousParent = $parent; | ||
| $parentId = (int)$this->cache->getId($parent); | ||
| //FIXME what if $parentId is -1? | ||
| } | ||
| $data['parent'] = $parentId; | ||
|
|
||
| $cacheData = $this->cache->get($data['path']); | ||
| if ($cacheData) { | ||
| // Only update metadata that has changed | ||
| $newData = array_diff_assoc($data, $cacheData); | ||
| } else { | ||
| $newData = $data; | ||
| } | ||
| if (!empty($newData)) { | ||
| $this->addToCache($data['path'], $newData); | ||
| $this->emit( | ||
| '\OC\Files\Cache\Scanner', | ||
| 'postScanFile', | ||
| array($data['path'], $this->storageId) | ||
| ); | ||
| \OC_Hook::emit( | ||
| '\OC\Files\Cache\Scanner', | ||
| 'post_scan_file', | ||
| array('path' => $data['path'], 'storage' => $this->storageId) | ||
| ); | ||
| } | ||
| // we reached the end when the list is no longer truncated | ||
| } | ||
| } while ($objects['IsTruncated']); | ||
| } catch (S3Exception $e) { | ||
| \OCP\Util::logException('files_external', $e); | ||
| return null; | ||
| } | ||
|
|
||
| // update root size | ||
| $this->cache->calculateFolderSize('', | ||
| array('fileid' => $rootId, 'mimetype' => 'httpd/unix-directory', 'size' => -1) | ||
| ); | ||
|
|
||
| //delete all filecache entries where storage_mtimes has not been updated | ||
| $stmt = \OC::$server->getDatabaseConnection()->prepare( | ||
| 'DELETE FROM `*PREFIX*filecache` WHERE `storage` = ? AND `storage_mtime` = ?' | ||
| ); | ||
| $stmt->execute(array($this->cache->getNumericStorageId(), -1)); | ||
|
|
||
| return $this->cache->get($path); | ||
| } | ||
| public function scanFile($file, $reuseExisting = 0) { | ||
|
|
||
| } | ||
| public function scanChildren($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1) { | ||
|
|
||
| } | ||
| } |