601 lines
16 KiB
PHP
601 lines
16 KiB
PHP
<?php
|
|
/**
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc.
|
|
*
|
|
* @author Bjoern Schiessle <bjoern@schiessle.org>
|
|
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
|
|
* @author Joas Schilling <coding@schilljs.com>
|
|
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
|
|
* @author Marcel Klehr <mklehr@gmx.net>
|
|
* @author Morris Jobke <hey@morrisjobke.de>
|
|
* @author Robin Appelman <robin@icewind.nl>
|
|
* @author Roeland Jago Douma <roeland@famdouma.nl>
|
|
*
|
|
* @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 OC\Files\ObjectStore;
|
|
|
|
use Icewind\Streams\CallbackWrapper;
|
|
use Icewind\Streams\CountWrapper;
|
|
use Icewind\Streams\IteratorDirectory;
|
|
use OC\Files\Cache\Cache;
|
|
use OC\Files\Cache\CacheEntry;
|
|
use OC\Files\Storage\PolyFill\CopyDirectory;
|
|
use OCP\Files\Cache\ICacheEntry;
|
|
use OCP\Files\FileInfo;
|
|
use OCP\Files\NotFoundException;
|
|
use OCP\Files\ObjectStore\IObjectStore;
|
|
use OCP\Files\Storage\IStorage;
|
|
|
|
class ObjectStoreStorage extends \OC\Files\Storage\Common {
|
|
use CopyDirectory;
|
|
|
|
/**
|
|
* @var \OCP\Files\ObjectStore\IObjectStore $objectStore
|
|
*/
|
|
protected $objectStore;
|
|
/**
|
|
* @var string $id
|
|
*/
|
|
protected $id;
|
|
/**
|
|
* @var \OC\User\User $user
|
|
*/
|
|
protected $user;
|
|
|
|
private $objectPrefix = 'urn:oid:';
|
|
|
|
private $logger;
|
|
|
|
public function __construct($params) {
|
|
if (isset($params['objectstore']) && $params['objectstore'] instanceof IObjectStore) {
|
|
$this->objectStore = $params['objectstore'];
|
|
} else {
|
|
throw new \Exception('missing IObjectStore instance');
|
|
}
|
|
if (isset($params['storageid'])) {
|
|
$this->id = 'object::store:' . $params['storageid'];
|
|
} else {
|
|
$this->id = 'object::store:' . $this->objectStore->getStorageId();
|
|
}
|
|
if (isset($params['objectPrefix'])) {
|
|
$this->objectPrefix = $params['objectPrefix'];
|
|
}
|
|
//initialize cache with root directory in cache
|
|
if (!$this->is_dir('/')) {
|
|
$this->mkdir('/');
|
|
}
|
|
|
|
$this->logger = \OC::$server->getLogger();
|
|
}
|
|
|
|
public function mkdir($path) {
|
|
$path = $this->normalizePath($path);
|
|
|
|
if ($this->file_exists($path)) {
|
|
return false;
|
|
}
|
|
|
|
$mTime = time();
|
|
$data = [
|
|
'mimetype' => 'httpd/unix-directory',
|
|
'size' => 0,
|
|
'mtime' => $mTime,
|
|
'storage_mtime' => $mTime,
|
|
'permissions' => \OCP\Constants::PERMISSION_ALL,
|
|
];
|
|
if ($path === '') {
|
|
//create root on the fly
|
|
$data['etag'] = $this->getETag('');
|
|
$this->getCache()->put('', $data);
|
|
return true;
|
|
} else {
|
|
// if parent does not exist, create it
|
|
$parent = $this->normalizePath(dirname($path));
|
|
$parentType = $this->filetype($parent);
|
|
if ($parentType === false) {
|
|
if (!$this->mkdir($parent)) {
|
|
// something went wrong
|
|
return false;
|
|
}
|
|
} elseif ($parentType === 'file') {
|
|
// parent is a file
|
|
return false;
|
|
}
|
|
// finally create the new dir
|
|
$mTime = time(); // update mtime
|
|
$data['mtime'] = $mTime;
|
|
$data['storage_mtime'] = $mTime;
|
|
$data['etag'] = $this->getETag($path);
|
|
$this->getCache()->put($path, $data);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param string $path
|
|
* @return string
|
|
*/
|
|
private function normalizePath($path) {
|
|
$path = trim($path, '/');
|
|
//FIXME why do we sometimes get a path like 'files//username'?
|
|
$path = str_replace('//', '/', $path);
|
|
|
|
// dirname('/folder') returns '.' but internally (in the cache) we store the root as ''
|
|
if (!$path || $path === '.') {
|
|
$path = '';
|
|
}
|
|
|
|
return $path;
|
|
}
|
|
|
|
/**
|
|
* Object Stores use a NoopScanner because metadata is directly stored in
|
|
* the file cache and cannot really scan the filesystem. The storage passed in is not used anywhere.
|
|
*
|
|
* @param string $path
|
|
* @param \OC\Files\Storage\Storage (optional) the storage to pass to the scanner
|
|
* @return \OC\Files\ObjectStore\NoopScanner
|
|
*/
|
|
public function getScanner($path = '', $storage = null) {
|
|
if (!$storage) {
|
|
$storage = $this;
|
|
}
|
|
if (!isset($this->scanner)) {
|
|
$this->scanner = new NoopScanner($storage);
|
|
}
|
|
return $this->scanner;
|
|
}
|
|
|
|
public function getId() {
|
|
return $this->id;
|
|
}
|
|
|
|
public function rmdir($path) {
|
|
$path = $this->normalizePath($path);
|
|
|
|
if (!$this->is_dir($path)) {
|
|
return false;
|
|
}
|
|
|
|
if (!$this->rmObjects($path)) {
|
|
return false;
|
|
}
|
|
|
|
$this->getCache()->remove($path);
|
|
|
|
return true;
|
|
}
|
|
|
|
private function rmObjects($path) {
|
|
$children = $this->getCache()->getFolderContents($path);
|
|
foreach ($children as $child) {
|
|
if ($child['mimetype'] === 'httpd/unix-directory') {
|
|
if (!$this->rmObjects($child['path'])) {
|
|
return false;
|
|
}
|
|
} else {
|
|
if (!$this->unlink($child['path'])) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public function unlink($path) {
|
|
$path = $this->normalizePath($path);
|
|
$stat = $this->stat($path);
|
|
|
|
if ($stat && isset($stat['fileid'])) {
|
|
if ($stat['mimetype'] === 'httpd/unix-directory') {
|
|
return $this->rmdir($path);
|
|
}
|
|
try {
|
|
$this->objectStore->deleteObject($this->getURN($stat['fileid']));
|
|
} catch (\Exception $ex) {
|
|
if ($ex->getCode() !== 404) {
|
|
$this->logger->logException($ex, [
|
|
'app' => 'objectstore',
|
|
'message' => 'Could not delete object ' . $this->getURN($stat['fileid']) . ' for ' . $path,
|
|
]);
|
|
return false;
|
|
}
|
|
//removing from cache is ok as it does not exist in the objectstore anyway
|
|
}
|
|
$this->getCache()->remove($path);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function stat($path) {
|
|
$path = $this->normalizePath($path);
|
|
$cacheEntry = $this->getCache()->get($path);
|
|
if ($cacheEntry instanceof CacheEntry) {
|
|
return $cacheEntry->getData();
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function getPermissions($path) {
|
|
$stat = $this->stat($path);
|
|
|
|
if (is_array($stat) && isset($stat['permissions'])) {
|
|
return $stat['permissions'];
|
|
}
|
|
|
|
return parent::getPermissions($path);
|
|
}
|
|
|
|
/**
|
|
* Override this method if you need a different unique resource identifier for your object storage implementation.
|
|
* The default implementations just appends the fileId to 'urn:oid:'. Make sure the URN is unique over all users.
|
|
* You may need a mapping table to store your URN if it cannot be generated from the fileid.
|
|
*
|
|
* @param int $fileId the fileid
|
|
* @return null|string the unified resource name used to identify the object
|
|
*/
|
|
public function getURN($fileId) {
|
|
if (is_numeric($fileId)) {
|
|
return $this->objectPrefix . $fileId;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public function opendir($path) {
|
|
$path = $this->normalizePath($path);
|
|
|
|
try {
|
|
$files = [];
|
|
$folderContents = $this->getCache()->getFolderContents($path);
|
|
foreach ($folderContents as $file) {
|
|
$files[] = $file['name'];
|
|
}
|
|
|
|
return IteratorDirectory::wrap($files);
|
|
} catch (\Exception $e) {
|
|
$this->logger->logException($e);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function filetype($path) {
|
|
$path = $this->normalizePath($path);
|
|
$stat = $this->stat($path);
|
|
if ($stat) {
|
|
if ($stat['mimetype'] === 'httpd/unix-directory') {
|
|
return 'dir';
|
|
}
|
|
return 'file';
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function fopen($path, $mode) {
|
|
$path = $this->normalizePath($path);
|
|
|
|
if (strrpos($path, '.') !== false) {
|
|
$ext = substr($path, strrpos($path, '.'));
|
|
} else {
|
|
$ext = '';
|
|
}
|
|
|
|
switch ($mode) {
|
|
case 'r':
|
|
case 'rb':
|
|
$stat = $this->stat($path);
|
|
if (is_array($stat)) {
|
|
// Reading 0 sized files is a waste of time
|
|
if (isset($stat['size']) && $stat['size'] === 0) {
|
|
return fopen('php://memory', $mode);
|
|
}
|
|
|
|
try {
|
|
return $this->objectStore->readObject($this->getURN($stat['fileid']));
|
|
} catch (NotFoundException $e) {
|
|
$this->logger->logException($e, [
|
|
'app' => 'objectstore',
|
|
'message' => 'Could not get object ' . $this->getURN($stat['fileid']) . ' for file ' . $path,
|
|
]);
|
|
throw $e;
|
|
} catch (\Exception $ex) {
|
|
$this->logger->logException($ex, [
|
|
'app' => 'objectstore',
|
|
'message' => 'Could not get object ' . $this->getURN($stat['fileid']) . ' for file ' . $path,
|
|
]);
|
|
return false;
|
|
}
|
|
} else {
|
|
return false;
|
|
}
|
|
// no break
|
|
case 'w':
|
|
case 'wb':
|
|
case 'w+':
|
|
case 'wb+':
|
|
$tmpFile = \OC::$server->getTempManager()->getTemporaryFile($ext);
|
|
$handle = fopen($tmpFile, $mode);
|
|
return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
|
|
$this->writeBack($tmpFile, $path);
|
|
});
|
|
case 'a':
|
|
case 'ab':
|
|
case 'r+':
|
|
case 'a+':
|
|
case 'x':
|
|
case 'x+':
|
|
case 'c':
|
|
case 'c+':
|
|
$tmpFile = \OC::$server->getTempManager()->getTemporaryFile($ext);
|
|
if ($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, $path);
|
|
});
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public function file_exists($path) {
|
|
$path = $this->normalizePath($path);
|
|
return (bool)$this->stat($path);
|
|
}
|
|
|
|
public function rename($source, $target) {
|
|
$source = $this->normalizePath($source);
|
|
$target = $this->normalizePath($target);
|
|
$this->remove($target);
|
|
$this->getCache()->move($source, $target);
|
|
$this->touch(dirname($target));
|
|
return true;
|
|
}
|
|
|
|
public function getMimeType($path) {
|
|
$path = $this->normalizePath($path);
|
|
return parent::getMimeType($path);
|
|
}
|
|
|
|
public function touch($path, $mtime = null) {
|
|
if (is_null($mtime)) {
|
|
$mtime = time();
|
|
}
|
|
|
|
$path = $this->normalizePath($path);
|
|
$dirName = dirname($path);
|
|
$parentExists = $this->is_dir($dirName);
|
|
if (!$parentExists) {
|
|
return false;
|
|
}
|
|
|
|
$stat = $this->stat($path);
|
|
if (is_array($stat)) {
|
|
// update existing mtime in db
|
|
$stat['mtime'] = $mtime;
|
|
$this->getCache()->update($stat['fileid'], $stat);
|
|
} else {
|
|
try {
|
|
//create a empty file, need to have at least on char to make it
|
|
// work with all object storage implementations
|
|
$this->file_put_contents($path, ' ');
|
|
$mimeType = \OC::$server->getMimeTypeDetector()->detectPath($path);
|
|
$stat = [
|
|
'etag' => $this->getETag($path),
|
|
'mimetype' => $mimeType,
|
|
'size' => 0,
|
|
'mtime' => $mtime,
|
|
'storage_mtime' => $mtime,
|
|
'permissions' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_CREATE,
|
|
];
|
|
$this->getCache()->put($path, $stat);
|
|
} catch (\Exception $ex) {
|
|
$this->logger->logException($ex, [
|
|
'app' => 'objectstore',
|
|
'message' => 'Could not create object for ' . $path,
|
|
]);
|
|
throw $ex;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public function writeBack($tmpFile, $path) {
|
|
$size = filesize($tmpFile);
|
|
$this->writeStream($path, fopen($tmpFile, 'r'), $size);
|
|
}
|
|
|
|
/**
|
|
* external changes are not supported, exclusive access to the object storage is assumed
|
|
*
|
|
* @param string $path
|
|
* @param int $time
|
|
* @return false
|
|
*/
|
|
public function hasUpdated($path, $time) {
|
|
return false;
|
|
}
|
|
|
|
public function needsPartFile() {
|
|
return false;
|
|
}
|
|
|
|
public function file_put_contents($path, $data) {
|
|
$handle = $this->fopen($path, 'w+');
|
|
fwrite($handle, $data);
|
|
fclose($handle);
|
|
return true;
|
|
}
|
|
|
|
public function writeStream(string $path, $stream, int $size = null): int {
|
|
$stat = $this->stat($path);
|
|
if (empty($stat)) {
|
|
// create new file
|
|
$stat = [
|
|
'permissions' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_CREATE,
|
|
];
|
|
}
|
|
// update stat with new data
|
|
$mTime = time();
|
|
$stat['size'] = (int)$size;
|
|
$stat['mtime'] = $mTime;
|
|
$stat['storage_mtime'] = $mTime;
|
|
|
|
$mimetypeDetector = \OC::$server->getMimeTypeDetector();
|
|
$mimetype = $mimetypeDetector->detectPath($path);
|
|
|
|
$stat['mimetype'] = $mimetype;
|
|
$stat['etag'] = $this->getETag($path);
|
|
|
|
$exists = $this->getCache()->inCache($path);
|
|
$uploadPath = $exists ? $path : $path . '.part';
|
|
|
|
if ($exists) {
|
|
$fileId = $stat['fileid'];
|
|
} else {
|
|
$fileId = $this->getCache()->put($uploadPath, $stat);
|
|
}
|
|
|
|
$urn = $this->getURN($fileId);
|
|
try {
|
|
//upload to object storage
|
|
if ($size === null) {
|
|
$countStream = CountWrapper::wrap($stream, function ($writtenSize) use ($fileId, &$size) {
|
|
$this->getCache()->update($fileId, [
|
|
'size' => $writtenSize,
|
|
]);
|
|
$size = $writtenSize;
|
|
});
|
|
$this->objectStore->writeObject($urn, $countStream);
|
|
if (is_resource($countStream)) {
|
|
fclose($countStream);
|
|
}
|
|
$stat['size'] = $size;
|
|
} else {
|
|
$this->objectStore->writeObject($urn, $stream);
|
|
}
|
|
} catch (\Exception $ex) {
|
|
if (!$exists) {
|
|
/*
|
|
* Only remove the entry if we are dealing with a new file.
|
|
* Else people lose access to existing files
|
|
*/
|
|
$this->getCache()->remove($uploadPath);
|
|
$this->logger->logException($ex, [
|
|
'app' => 'objectstore',
|
|
'message' => 'Could not create object ' . $urn . ' for ' . $path,
|
|
]);
|
|
} else {
|
|
$this->logger->logException($ex, [
|
|
'app' => 'objectstore',
|
|
'message' => 'Could not update object ' . $urn . ' for ' . $path,
|
|
]);
|
|
}
|
|
throw $ex; // make this bubble up
|
|
}
|
|
|
|
if ($exists) {
|
|
$this->getCache()->update($fileId, $stat);
|
|
} else {
|
|
if ($this->objectStore->objectExists($urn)) {
|
|
$this->getCache()->move($uploadPath, $path);
|
|
} else {
|
|
$this->getCache()->remove($uploadPath);
|
|
throw new \Exception("Object not found after writing (urn: $urn, path: $path)", 404);
|
|
}
|
|
}
|
|
|
|
return $size;
|
|
}
|
|
|
|
public function getObjectStore(): IObjectStore {
|
|
return $this->objectStore;
|
|
}
|
|
|
|
public function copyFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = false) {
|
|
if ($sourceStorage->instanceOfStorage(ObjectStoreStorage::class)) {
|
|
/** @var ObjectStoreStorage $sourceStorage */
|
|
if ($sourceStorage->getObjectStore()->getStorageId() === $this->getObjectStore()->getStorageId()) {
|
|
$sourceEntry = $sourceStorage->getCache()->get($sourceInternalPath);
|
|
$this->copyInner($sourceEntry, $targetInternalPath);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return parent::copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
|
|
}
|
|
|
|
public function copy($path1, $path2) {
|
|
$path1 = $this->normalizePath($path1);
|
|
$path2 = $this->normalizePath($path2);
|
|
|
|
$cache = $this->getCache();
|
|
$sourceEntry = $cache->get($path1);
|
|
if (!$sourceEntry) {
|
|
throw new NotFoundException('Source object not found');
|
|
}
|
|
|
|
$this->copyInner($sourceEntry, $path2);
|
|
|
|
return true;
|
|
}
|
|
|
|
private function copyInner(ICacheEntry $sourceEntry, string $to) {
|
|
$cache = $this->getCache();
|
|
|
|
if ($sourceEntry->getMimeType() === FileInfo::MIMETYPE_FOLDER) {
|
|
if ($cache->inCache($to)) {
|
|
$cache->remove($to);
|
|
}
|
|
$this->mkdir($to);
|
|
|
|
foreach ($cache->getFolderContentsById($sourceEntry->getId()) as $child) {
|
|
$this->copyInner($child, $to . '/' . $child->getName());
|
|
}
|
|
} else {
|
|
$this->copyFile($sourceEntry, $to);
|
|
}
|
|
}
|
|
|
|
private function copyFile(ICacheEntry $sourceEntry, string $to) {
|
|
$cache = $this->getCache();
|
|
|
|
$sourceUrn = $this->getURN($sourceEntry->getId());
|
|
|
|
if (!$cache instanceof Cache) {
|
|
throw new \Exception("Invalid source cache for object store copy");
|
|
}
|
|
|
|
$targetId = $cache->copyFromCache($cache, $sourceEntry, $to);
|
|
|
|
$targetUrn = $this->getURN($targetId);
|
|
|
|
try {
|
|
$this->objectStore->copyObject($sourceUrn, $targetUrn);
|
|
} catch (\Exception $e) {
|
|
$cache->remove($to);
|
|
|
|
throw $e;
|
|
}
|
|
}
|
|
}
|