nextcloud / server

lib/private/Files/Storage/Wrapper/Encryption.php

Doc Comments +2 added lines, -2 removed lines

@@ -984,7 +984,7 @@ 
 	/**
 	 * check if path points to a files version
 	 *
-	 * @param $path
+	 * @param string $path
 	 * @return bool
 	 */
 	protected function isVersion($path) {
@@ -995,7 +995,7 @@ 
 	/**
 	 * check if the given storage should be encrypted or not
 	 *
-	 * @param $path
+	 * @param string $path
 	 * @return bool
 	 */
 	protected function shouldEncrypt($path) {

Indentation +972 added lines, -972 removed lines

@@ -46,977 +46,977 @@
 
 class Encryption extends Wrapper {
 
-	use LocalTempFileTrait;
-
-	/** @var string */
-	private $mountPoint;
-
-	/** @var \OC\Encryption\Util */
-	private $util;
-
-	/** @var \OCP\Encryption\IManager */
-	private $encryptionManager;
-
-	/** @var \OCP\ILogger */
-	private $logger;
-
-	/** @var string */
-	private $uid;
-
-	/** @var array */
-	protected $unencryptedSize;
-
-	/** @var \OCP\Encryption\IFile */
-	private $fileHelper;
-
-	/** @var IMountPoint */
-	private $mount;
-
-	/** @var IStorage */
-	private $keyStorage;
-
-	/** @var Update */
-	private $update;
-
-	/** @var Manager */
-	private $mountManager;
-
-	/** @var array remember for which path we execute the repair step to avoid recursions */
-	private $fixUnencryptedSizeOf = array();
-
-	/** @var  ArrayCache */
-	private $arrayCache;
-
-	/**
-	 * @param array $parameters
-	 * @param IManager $encryptionManager
-	 * @param Util $util
-	 * @param ILogger $logger
-	 * @param IFile $fileHelper
-	 * @param string $uid
-	 * @param IStorage $keyStorage
-	 * @param Update $update
-	 * @param Manager $mountManager
-	 * @param ArrayCache $arrayCache
-	 */
-	public function __construct(
-			$parameters,
-			IManager $encryptionManager = null,
-			Util $util = null,
-			ILogger $logger = null,
-			IFile $fileHelper = null,
-			$uid = null,
-			IStorage $keyStorage = null,
-			Update $update = null,
-			Manager $mountManager = null,
-			ArrayCache $arrayCache = null
-		) {
-
-		$this->mountPoint = $parameters['mountPoint'];
-		$this->mount = $parameters['mount'];
-		$this->encryptionManager = $encryptionManager;
-		$this->util = $util;
-		$this->logger = $logger;
-		$this->uid = $uid;
-		$this->fileHelper = $fileHelper;
-		$this->keyStorage = $keyStorage;
-		$this->unencryptedSize = array();
-		$this->update = $update;
-		$this->mountManager = $mountManager;
-		$this->arrayCache = $arrayCache;
-		parent::__construct($parameters);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.filesize.php
-	 * The result for filesize when called on a folder is required to be 0
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function filesize($path) {
-		$fullPath = $this->getFullPath($path);
-
-		/** @var CacheEntry $info */
-		$info = $this->getCache()->get($path);
-		if (isset($this->unencryptedSize[$fullPath])) {
-			$size = $this->unencryptedSize[$fullPath];
-			// update file cache
-			if ($info instanceof ICacheEntry) {
-				$info = $info->getData();
-				$info['encrypted'] = $info['encryptedVersion'];
-			} else {
-				if (!is_array($info)) {
-					$info = [];
-				}
-				$info['encrypted'] = true;
-			}
-
-			$info['size'] = $size;
-			$this->getCache()->put($path, $info);
-
-			return $size;
-		}
-
-		if (isset($info['fileid']) && $info['encrypted']) {
-			return $this->verifyUnencryptedSize($path, $info['size']);
-		}
-
-		return $this->storage->filesize($path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return array
-	 */
-	public function getMetaData($path) {
-		$data = $this->storage->getMetaData($path);
-		if (is_null($data)) {
-			return null;
-		}
-		$fullPath = $this->getFullPath($path);
-		$info = $this->getCache()->get($path);
-
-		if (isset($this->unencryptedSize[$fullPath])) {
-			$data['encrypted'] = true;
-			$data['size'] = $this->unencryptedSize[$fullPath];
-		} else {
-			if (isset($info['fileid']) && $info['encrypted']) {
-				$data['size'] = $this->verifyUnencryptedSize($path, $info['size']);
-				$data['encrypted'] = true;
-			}
-		}
-
-		if (isset($info['encryptedVersion']) && $info['encryptedVersion'] > 1) {
-			$data['encryptedVersion'] = $info['encryptedVersion'];
-		}
-
-		return $data;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.file_get_contents.php
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function file_get_contents($path) {
-
-		$encryptionModule = $this->getEncryptionModule($path);
-
-		if ($encryptionModule) {
-			$handle = $this->fopen($path, "r");
-			if (!$handle) {
-				return false;
-			}
-			$data = stream_get_contents($handle);
-			fclose($handle);
-			return $data;
-		}
-		return $this->storage->file_get_contents($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.file_put_contents.php
-	 *
-	 * @param string $path
-	 * @param string $data
-	 * @return bool
-	 */
-	public function file_put_contents($path, $data) {
-		// file put content will always be translated to a stream write
-		$handle = $this->fopen($path, 'w');
-		if (is_resource($handle)) {
-			$written = fwrite($handle, $data);
-			fclose($handle);
-			return $written;
-		}
-
-		return false;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.unlink.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function unlink($path) {
-		$fullPath = $this->getFullPath($path);
-		if ($this->util->isExcluded($fullPath)) {
-			return $this->storage->unlink($path);
-		}
-
-		$encryptionModule = $this->getEncryptionModule($path);
-		if ($encryptionModule) {
-			$this->keyStorage->deleteAllFileKeys($this->getFullPath($path));
-		}
-
-		return $this->storage->unlink($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.rename.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function rename($path1, $path2) {
-
-		$result = $this->storage->rename($path1, $path2);
-
-		if ($result &&
-			// versions always use the keys from the original file, so we can skip
-			// this step for versions
-			$this->isVersion($path2) === false &&
-			$this->encryptionManager->isEnabled()) {
-			$source = $this->getFullPath($path1);
-			if (!$this->util->isExcluded($source)) {
-				$target = $this->getFullPath($path2);
-				if (isset($this->unencryptedSize[$source])) {
-					$this->unencryptedSize[$target] = $this->unencryptedSize[$source];
-				}
-				$this->keyStorage->renameKeys($source, $target);
-				$module = $this->getEncryptionModule($path2);
-				if ($module) {
-					$module->update($target, $this->uid, []);
-				}
-			}
-		}
-
-		return $result;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.rmdir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function rmdir($path) {
-		$result = $this->storage->rmdir($path);
-		$fullPath = $this->getFullPath($path);
-		if ($result &&
-			$this->util->isExcluded($fullPath) === false &&
-			$this->encryptionManager->isEnabled()
-		) {
-			$this->keyStorage->deleteAllFileKeys($fullPath);
-		}
-
-		return $result;
-	}
-
-	/**
-	 * check if a file can be read
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isReadable($path) {
-
-		$isReadable = true;
-
-		$metaData = $this->getMetaData($path);
-		if (
-			!$this->is_dir($path) &&
-			isset($metaData['encrypted']) &&
-			$metaData['encrypted'] === true
-		) {
-			$fullPath = $this->getFullPath($path);
-			$module = $this->getEncryptionModule($path);
-			$isReadable = $module->isReadable($fullPath, $this->uid);
-		}
-
-		return $this->storage->isReadable($path) && $isReadable;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.copy.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function copy($path1, $path2) {
-
-		$source = $this->getFullPath($path1);
-
-		if ($this->util->isExcluded($source)) {
-			return $this->storage->copy($path1, $path2);
-		}
-
-		// need to stream copy file by file in case we copy between a encrypted
-		// and a unencrypted storage
-		$this->unlink($path2);
-		$result = $this->copyFromStorage($this, $path1, $path2);
-
-		return $result;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.fopen.php
-	 *
-	 * @param string $path
-	 * @param string $mode
-	 * @return resource|bool
-	 * @throws GenericEncryptionException
-	 * @throws ModuleDoesNotExistsException
-	 */
-	public function fopen($path, $mode) {
-
-		// check if the file is stored in the array cache, this means that we
-		// copy a file over to the versions folder, in this case we don't want to
-		// decrypt it
-		if ($this->arrayCache->hasKey('encryption_copy_version_' . $path)) {
-			$this->arrayCache->remove('encryption_copy_version_' . $path);
-			return $this->storage->fopen($path, $mode);
-		}
-
-		$encryptionEnabled = $this->encryptionManager->isEnabled();
-		$shouldEncrypt = false;
-		$encryptionModule = null;
-		$header = $this->getHeader($path);
-		$signed = (isset($header['signed']) && $header['signed'] === 'true') ? true : false;
-		$fullPath = $this->getFullPath($path);
-		$encryptionModuleId = $this->util->getEncryptionModuleId($header);
-
-		if ($this->util->isExcluded($fullPath) === false) {
-
-			$size = $unencryptedSize = 0;
-			$realFile = $this->util->stripPartialFileExtension($path);
-			$targetExists = $this->file_exists($realFile) || $this->file_exists($path);
-			$targetIsEncrypted = false;
-			if ($targetExists) {
-				// in case the file exists we require the explicit module as
-				// specified in the file header - otherwise we need to fail hard to
-				// prevent data loss on client side
-				if (!empty($encryptionModuleId)) {
-					$targetIsEncrypted = true;
-					$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
-				}
-
-				if ($this->file_exists($path)) {
-					$size = $this->storage->filesize($path);
-					$unencryptedSize = $this->filesize($path);
-				} else {
-					$size = $unencryptedSize = 0;
-				}
-			}
-
-			try {
-
-				if (
-					$mode === 'w'
-					|| $mode === 'w+'
-					|| $mode === 'wb'
-					|| $mode === 'wb+'
-				) {
-					// don't overwrite encrypted files if encryption is not enabled
-					if ($targetIsEncrypted && $encryptionEnabled === false) {
-						throw new GenericEncryptionException('Tried to access encrypted file but encryption is not enabled');
-					}
-					if ($encryptionEnabled) {
-						// if $encryptionModuleId is empty, the default module will be used
-						$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
-						$shouldEncrypt = $encryptionModule->shouldEncrypt($fullPath);
-						$signed = true;
-					}
-				} else {
-					$info = $this->getCache()->get($path);
-					// only get encryption module if we found one in the header
-					// or if file should be encrypted according to the file cache
-					if (!empty($encryptionModuleId)) {
-						$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
-						$shouldEncrypt = true;
-					} else if (empty($encryptionModuleId) && $info['encrypted'] === true) {
-						// we come from a old installation. No header and/or no module defined
-						// but the file is encrypted. In this case we need to use the
-						// OC_DEFAULT_MODULE to read the file
-						$encryptionModule = $this->encryptionManager->getEncryptionModule('OC_DEFAULT_MODULE');
-						$shouldEncrypt = true;
-						$targetIsEncrypted = true;
-					}
-				}
-			} catch (ModuleDoesNotExistsException $e) {
-				$this->logger->warning('Encryption module "' . $encryptionModuleId .
-					'" not found, file will be stored unencrypted (' . $e->getMessage() . ')');
-			}
-
-			// encryption disabled on write of new file and write to existing unencrypted file -> don't encrypt
-			if (!$encryptionEnabled || !$this->shouldEncrypt($path)) {
-				if (!$targetExists || !$targetIsEncrypted) {
-					$shouldEncrypt = false;
-				}
-			}
-
-			if ($shouldEncrypt === true && $encryptionModule !== null) {
-				$headerSize = $this->getHeaderSize($path);
-				$source = $this->storage->fopen($path, $mode);
-				if (!is_resource($source)) {
-					return false;
-				}
-				$handle = \OC\Files\Stream\Encryption::wrap($source, $path, $fullPath, $header,
-					$this->uid, $encryptionModule, $this->storage, $this, $this->util, $this->fileHelper, $mode,
-					$size, $unencryptedSize, $headerSize, $signed);
-				return $handle;
-			}
-
-		}
-
-		return $this->storage->fopen($path, $mode);
-	}
-
-
-	/**
-	 * perform some plausibility checks if the the unencrypted size is correct.
-	 * If not, we calculate the correct unencrypted size and return it
-	 *
-	 * @param string $path internal path relative to the storage root
-	 * @param int $unencryptedSize size of the unencrypted file
-	 *
-	 * @return int unencrypted size
-	 */
-	protected function verifyUnencryptedSize($path, $unencryptedSize) {
-
-		$size = $this->storage->filesize($path);
-		$result = $unencryptedSize;
-
-		if ($unencryptedSize < 0 ||
-			($size > 0 && $unencryptedSize === $size)
-		) {
-			// check if we already calculate the unencrypted size for the
-			// given path to avoid recursions
-			if (isset($this->fixUnencryptedSizeOf[$this->getFullPath($path)]) === false) {
-				$this->fixUnencryptedSizeOf[$this->getFullPath($path)] = true;
-				try {
-					$result = $this->fixUnencryptedSize($path, $size, $unencryptedSize);
-				} catch (\Exception $e) {
-					$this->logger->error('Couldn\'t re-calculate unencrypted size for '. $path);
-					$this->logger->logException($e);
-				}
-				unset($this->fixUnencryptedSizeOf[$this->getFullPath($path)]);
-			}
-		}
-
-		return $result;
-	}
-
-	/**
-	 * calculate the unencrypted size
-	 *
-	 * @param string $path internal path relative to the storage root
-	 * @param int $size size of the physical file
-	 * @param int $unencryptedSize size of the unencrypted file
-	 *
-	 * @return int calculated unencrypted size
-	 */
-	protected function fixUnencryptedSize($path, $size, $unencryptedSize) {
-
-		$headerSize = $this->getHeaderSize($path);
-		$header = $this->getHeader($path);
-		$encryptionModule = $this->getEncryptionModule($path);
-
-		$stream = $this->storage->fopen($path, 'r');
-
-		// if we couldn't open the file we return the old unencrypted size
-		if (!is_resource($stream)) {
-			$this->logger->error('Could not open ' . $path . '. Recalculation of unencrypted size aborted.');
-			return $unencryptedSize;
-		}
-
-		$newUnencryptedSize = 0;
-		$size -= $headerSize;
-		$blockSize = $this->util->getBlockSize();
-
-		// if a header exists we skip it
-		if ($headerSize > 0) {
-			fread($stream, $headerSize);
-		}
-
-		// fast path, else the calculation for $lastChunkNr is bogus
-		if ($size === 0) {
-			return 0;
-		}
-
-		$signed = (isset($header['signed']) && $header['signed'] === 'true') ? true : false;
-		$unencryptedBlockSize = $encryptionModule->getUnencryptedBlockSize($signed);
-
-		// calculate last chunk nr
-		// next highest is end of chunks, one subtracted is last one
-		// we have to read the last chunk, we can't just calculate it (because of padding etc)
-
-		$lastChunkNr = ceil($size/ $blockSize)-1;
-		// calculate last chunk position
-		$lastChunkPos = ($lastChunkNr * $blockSize);
-		// try to fseek to the last chunk, if it fails we have to read the whole file
-		if (@fseek($stream, $lastChunkPos, SEEK_CUR) === 0) {
-			$newUnencryptedSize += $lastChunkNr * $unencryptedBlockSize;
-		}
-
-		$lastChunkContentEncrypted='';
-		$count = $blockSize;
-
-		while ($count > 0) {
-			$data=fread($stream, $blockSize);
-			$count=strlen($data);
-			$lastChunkContentEncrypted .= $data;
-			if(strlen($lastChunkContentEncrypted) > $blockSize) {
-				$newUnencryptedSize += $unencryptedBlockSize;
-				$lastChunkContentEncrypted=substr($lastChunkContentEncrypted, $blockSize);
-			}
-		}
-
-		fclose($stream);
-
-		// we have to decrypt the last chunk to get it actual size
-		$encryptionModule->begin($this->getFullPath($path), $this->uid, 'r', $header, []);
-		$decryptedLastChunk = $encryptionModule->decrypt($lastChunkContentEncrypted, $lastChunkNr . 'end');
-		$decryptedLastChunk .= $encryptionModule->end($this->getFullPath($path), $lastChunkNr . 'end');
-
-		// calc the real file size with the size of the last chunk
-		$newUnencryptedSize += strlen($decryptedLastChunk);
-
-		$this->updateUnencryptedSize($this->getFullPath($path), $newUnencryptedSize);
-
-		// write to cache if applicable
-		$cache = $this->storage->getCache();
-		if ($cache) {
-			$entry = $cache->get($path);
-			$cache->update($entry['fileid'], ['size' => $newUnencryptedSize]);
-		}
-
-		return $newUnencryptedSize;
-	}
-
-	/**
-	 * @param Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $preserveMtime
-	 * @return bool
-	 */
-	public function moveFromStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = true) {
-		if ($sourceStorage === $this) {
-			return $this->rename($sourceInternalPath, $targetInternalPath);
-		}
-
-		// TODO clean this up once the underlying moveFromStorage in OC\Files\Storage\Wrapper\Common is fixed:
-		// - call $this->storage->moveFromStorage() instead of $this->copyBetweenStorage
-		// - copy the file cache update from  $this->copyBetweenStorage to this method
-		// - copy the copyKeys() call from  $this->copyBetweenStorage to this method
-		// - remove $this->copyBetweenStorage
-
-		if (!$sourceStorage->isDeletable($sourceInternalPath)) {
-			return false;
-		}
-
-		$result = $this->copyBetweenStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, true);
-		if ($result) {
-			if ($sourceStorage->is_dir($sourceInternalPath)) {
-				$result &= $sourceStorage->rmdir($sourceInternalPath);
-			} else {
-				$result &= $sourceStorage->unlink($sourceInternalPath);
-			}
-		}
-		return $result;
-	}
-
-
-	/**
-	 * @param Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $preserveMtime
-	 * @param bool $isRename
-	 * @return bool
-	 */
-	public function copyFromStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = false, $isRename = false) {
-
-		// TODO clean this up once the underlying moveFromStorage in OC\Files\Storage\Wrapper\Common is fixed:
-		// - call $this->storage->copyFromStorage() instead of $this->copyBetweenStorage
-		// - copy the file cache update from  $this->copyBetweenStorage to this method
-		// - copy the copyKeys() call from  $this->copyBetweenStorage to this method
-		// - remove $this->copyBetweenStorage
-
-		return $this->copyBetweenStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, $isRename);
-	}
-
-	/**
-	 * Update the encrypted cache version in the database
-	 *
-	 * @param Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $isRename
-	 */
-	private function updateEncryptedVersion(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename) {
-		$isEncrypted = $this->encryptionManager->isEnabled() && $this->shouldEncrypt($targetInternalPath) ? 1 : 0;
-		$cacheInformation = [
-			'encrypted' => (bool)$isEncrypted,
-		];
-		if($isEncrypted === 1) {
-			$encryptedVersion = $sourceStorage->getCache()->get($sourceInternalPath)['encryptedVersion'];
-
-			// In case of a move operation from an unencrypted to an encrypted
-			// storage the old encrypted version would stay with "0" while the
-			// correct value would be "1". Thus we manually set the value to "1"
-			// for those cases.
-			// See also https://github.com/owncloud/core/issues/23078
-			if($encryptedVersion === 0) {
-				$encryptedVersion = 1;
-			}
-
-			$cacheInformation['encryptedVersion'] = $encryptedVersion;
-		}
-
-		// in case of a rename we need to manipulate the source cache because
-		// this information will be kept for the new target
-		if ($isRename) {
-			$sourceStorage->getCache()->put($sourceInternalPath, $cacheInformation);
-		} else {
-			$this->getCache()->put($targetInternalPath, $cacheInformation);
-		}
-	}
-
-	/**
-	 * copy file between two storages
-	 *
-	 * @param Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $preserveMtime
-	 * @param bool $isRename
-	 * @return bool
-	 * @throws \Exception
-	 */
-	private function copyBetweenStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, $isRename) {
-
-		// for versions we have nothing to do, because versions should always use the
-		// key from the original file. Just create a 1:1 copy and done
-		if ($this->isVersion($targetInternalPath) ||
-			$this->isVersion($sourceInternalPath)) {
-			// remember that we try to create a version so that we can detect it during
-			// fopen($sourceInternalPath) and by-pass the encryption in order to
-			// create a 1:1 copy of the file
-			$this->arrayCache->set('encryption_copy_version_' . $sourceInternalPath, true);
-			$result = $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-			$this->arrayCache->remove('encryption_copy_version_' . $sourceInternalPath);
-			if ($result) {
-				$info = $this->getCache('', $sourceStorage)->get($sourceInternalPath);
-				// make sure that we update the unencrypted size for the version
-				if (isset($info['encrypted']) && $info['encrypted'] === true) {
-					$this->updateUnencryptedSize(
-						$this->getFullPath($targetInternalPath),
-						$info['size']
-					);
-				}
-				$this->updateEncryptedVersion($sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename);
-			}
-			return $result;
-		}
-
-		// first copy the keys that we reuse the existing file key on the target location
-		// and don't create a new one which would break versions for example.
-		$mount = $this->mountManager->findByStorageId($sourceStorage->getId());
-		if (count($mount) === 1) {
-			$mountPoint = $mount[0]->getMountPoint();
-			$source = $mountPoint . '/' . $sourceInternalPath;
-			$target = $this->getFullPath($targetInternalPath);
-			$this->copyKeys($source, $target);
-		} else {
-			$this->logger->error('Could not find mount point, can\'t keep encryption keys');
-		}
-
-		if ($sourceStorage->is_dir($sourceInternalPath)) {
-			$dh = $sourceStorage->opendir($sourceInternalPath);
-			$result = $this->mkdir($targetInternalPath);
-			if (is_resource($dh)) {
-				while ($result and ($file = readdir($dh)) !== false) {
-					if (!Filesystem::isIgnoredDir($file)) {
-						$result &= $this->copyFromStorage($sourceStorage, $sourceInternalPath . '/' . $file, $targetInternalPath . '/' . $file, false, $isRename);
-					}
-				}
-			}
-		} else {
-			try {
-				$source = $sourceStorage->fopen($sourceInternalPath, 'r');
-				$target = $this->fopen($targetInternalPath, 'w');
-				list(, $result) = \OC_Helper::streamCopy($source, $target);
-				fclose($source);
-				fclose($target);
-			} catch (\Exception $e) {
-				fclose($source);
-				fclose($target);
-				throw $e;
-			}
-			if($result) {
-				if ($preserveMtime) {
-					$this->touch($targetInternalPath, $sourceStorage->filemtime($sourceInternalPath));
-				}
-				$this->updateEncryptedVersion($sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename);
-			} else {
-				// delete partially written target file
-				$this->unlink($targetInternalPath);
-				// delete cache entry that was created by fopen
-				$this->getCache()->remove($targetInternalPath);
-			}
-		}
-		return (bool)$result;
-
-	}
-
-	/**
-	 * get the path to a local version of the file.
-	 * The local version of the file can be temporary and doesn't have to be persistent across requests
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFile($path) {
-		if ($this->encryptionManager->isEnabled()) {
-			$cachedFile = $this->getCachedFile($path);
-			if (is_string($cachedFile)) {
-				return $cachedFile;
-			}
-		}
-		return $this->storage->getLocalFile($path);
-	}
-
-	/**
-	 * Returns the wrapped storage's value for isLocal()
-	 *
-	 * @return bool wrapped storage's isLocal() value
-	 */
-	public function isLocal() {
-		if ($this->encryptionManager->isEnabled()) {
-			return false;
-		}
-		return $this->storage->isLocal();
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.stat.php
-	 * only the following keys are required in the result: size and mtime
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	public function stat($path) {
-		$stat = $this->storage->stat($path);
-		$fileSize = $this->filesize($path);
-		$stat['size'] = $fileSize;
-		$stat[7] = $fileSize;
-		return $stat;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.hash.php
-	 *
-	 * @param string $type
-	 * @param string $path
-	 * @param bool $raw
-	 * @return string
-	 */
-	public function hash($type, $path, $raw = false) {
-		$fh = $this->fopen($path, 'rb');
-		$ctx = hash_init($type);
-		hash_update_stream($ctx, $fh);
-		fclose($fh);
-		return hash_final($ctx, $raw);
-	}
-
-	/**
-	 * return full path, including mount point
-	 *
-	 * @param string $path relative to mount point
-	 * @return string full path including mount point
-	 */
-	protected function getFullPath($path) {
-		return Filesystem::normalizePath($this->mountPoint . '/' . $path);
-	}
-
-	/**
-	 * read first block of encrypted file, typically this will contain the
-	 * encryption header
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	protected function readFirstBlock($path) {
-		$firstBlock = '';
-		if ($this->storage->file_exists($path)) {
-			$handle = $this->storage->fopen($path, 'r');
-			$firstBlock = fread($handle, $this->util->getHeaderSize());
-			fclose($handle);
-		}
-		return $firstBlock;
-	}
-
-	/**
-	 * return header size of given file
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	protected function getHeaderSize($path) {
-		$headerSize = 0;
-		$realFile = $this->util->stripPartialFileExtension($path);
-		if ($this->storage->file_exists($realFile)) {
-			$path = $realFile;
-		}
-		$firstBlock = $this->readFirstBlock($path);
-
-		if (substr($firstBlock, 0, strlen(Util::HEADER_START)) === Util::HEADER_START) {
-			$headerSize = $this->util->getHeaderSize();
-		}
-
-		return $headerSize;
-	}
-
-	/**
-	 * parse raw header to array
-	 *
-	 * @param string $rawHeader
-	 * @return array
-	 */
-	protected function parseRawHeader($rawHeader) {
-		$result = array();
-		if (substr($rawHeader, 0, strlen(Util::HEADER_START)) === Util::HEADER_START) {
-			$header = $rawHeader;
-			$endAt = strpos($header, Util::HEADER_END);
-			if ($endAt !== false) {
-				$header = substr($header, 0, $endAt + strlen(Util::HEADER_END));
-
-				// +1 to not start with an ':' which would result in empty element at the beginning
-				$exploded = explode(':', substr($header, strlen(Util::HEADER_START)+1));
-
-				$element = array_shift($exploded);
-				while ($element !== Util::HEADER_END) {
-					$result[$element] = array_shift($exploded);
-					$element = array_shift($exploded);
-				}
-			}
-		}
-
-		return $result;
-	}
-
-	/**
-	 * read header from file
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	protected function getHeader($path) {
-		$realFile = $this->util->stripPartialFileExtension($path);
-		if ($this->storage->file_exists($realFile)) {
-			$path = $realFile;
-		}
-
-		$firstBlock = $this->readFirstBlock($path);
-		$result = $this->parseRawHeader($firstBlock);
-
-		// if the header doesn't contain a encryption module we check if it is a
-		// legacy file. If true, we add the default encryption module
-		if (!isset($result[Util::HEADER_ENCRYPTION_MODULE_KEY])) {
-			if (!empty($result)) {
-				$result[Util::HEADER_ENCRYPTION_MODULE_KEY] = 'OC_DEFAULT_MODULE';
-			} else {
-				// if the header was empty we have to check first if it is a encrypted file at all
-				$info = $this->getCache()->get($path);
-				if (isset($info['encrypted']) && $info['encrypted'] === true) {
-					$result[Util::HEADER_ENCRYPTION_MODULE_KEY] = 'OC_DEFAULT_MODULE';
-				}
-			}
-		}
-
-		return $result;
-	}
-
-	/**
-	 * read encryption module needed to read/write the file located at $path
-	 *
-	 * @param string $path
-	 * @return null|\OCP\Encryption\IEncryptionModule
-	 * @throws ModuleDoesNotExistsException
-	 * @throws \Exception
-	 */
-	protected function getEncryptionModule($path) {
-		$encryptionModule = null;
-		$header = $this->getHeader($path);
-		$encryptionModuleId = $this->util->getEncryptionModuleId($header);
-		if (!empty($encryptionModuleId)) {
-			try {
-				$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
-			} catch (ModuleDoesNotExistsException $e) {
-				$this->logger->critical('Encryption module defined in "' . $path . '" not loaded!');
-				throw $e;
-			}
-		}
-
-		return $encryptionModule;
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $unencryptedSize
-	 */
-	public function updateUnencryptedSize($path, $unencryptedSize) {
-		$this->unencryptedSize[$path] = $unencryptedSize;
-	}
-
-	/**
-	 * copy keys to new location
-	 *
-	 * @param string $source path relative to data/
-	 * @param string $target path relative to data/
-	 * @return bool
-	 */
-	protected function copyKeys($source, $target) {
-		if (!$this->util->isExcluded($source)) {
-			return $this->keyStorage->copyKeys($source, $target);
-		}
-
-		return false;
-	}
-
-	/**
-	 * check if path points to a files version
-	 *
-	 * @param $path
-	 * @return bool
-	 */
-	protected function isVersion($path) {
-		$normalized = Filesystem::normalizePath($path);
-		return substr($normalized, 0, strlen('/files_versions/')) === '/files_versions/';
-	}
-
-	/**
-	 * check if the given storage should be encrypted or not
-	 *
-	 * @param $path
-	 * @return bool
-	 */
-	protected function shouldEncrypt($path) {
-		$fullPath = $this->getFullPath($path);
-		$mountPointConfig = $this->mount->getOption('encrypt', true);
-		if ($mountPointConfig === false) {
-			return false;
-		}
-
-		try {
-			$encryptionModule = $this->getEncryptionModule($fullPath);
-		} catch (ModuleDoesNotExistsException $e) {
-			return false;
-		}
-
-		if ($encryptionModule === null) {
-			$encryptionModule = $this->encryptionManager->getEncryptionModule();
-		}
-
-		return $encryptionModule->shouldEncrypt($fullPath);
-
-	}
+    use LocalTempFileTrait;
+
+    /** @var string */
+    private $mountPoint;
+
+    /** @var \OC\Encryption\Util */
+    private $util;
+
+    /** @var \OCP\Encryption\IManager */
+    private $encryptionManager;
+
+    /** @var \OCP\ILogger */
+    private $logger;
+
+    /** @var string */
+    private $uid;
+
+    /** @var array */
+    protected $unencryptedSize;
+
+    /** @var \OCP\Encryption\IFile */
+    private $fileHelper;
+
+    /** @var IMountPoint */
+    private $mount;
+
+    /** @var IStorage */
+    private $keyStorage;
+
+    /** @var Update */
+    private $update;
+
+    /** @var Manager */
+    private $mountManager;
+
+    /** @var array remember for which path we execute the repair step to avoid recursions */
+    private $fixUnencryptedSizeOf = array();
+
+    /** @var  ArrayCache */
+    private $arrayCache;
+
+    /**
+     * @param array $parameters
+     * @param IManager $encryptionManager
+     * @param Util $util
+     * @param ILogger $logger
+     * @param IFile $fileHelper
+     * @param string $uid
+     * @param IStorage $keyStorage
+     * @param Update $update
+     * @param Manager $mountManager
+     * @param ArrayCache $arrayCache
+     */
+    public function __construct(
+            $parameters,
+            IManager $encryptionManager = null,
+            Util $util = null,
+            ILogger $logger = null,
+            IFile $fileHelper = null,
+            $uid = null,
+            IStorage $keyStorage = null,
+            Update $update = null,
+            Manager $mountManager = null,
+            ArrayCache $arrayCache = null
+        ) {
+
+        $this->mountPoint = $parameters['mountPoint'];
+        $this->mount = $parameters['mount'];
+        $this->encryptionManager = $encryptionManager;
+        $this->util = $util;
+        $this->logger = $logger;
+        $this->uid = $uid;
+        $this->fileHelper = $fileHelper;
+        $this->keyStorage = $keyStorage;
+        $this->unencryptedSize = array();
+        $this->update = $update;
+        $this->mountManager = $mountManager;
+        $this->arrayCache = $arrayCache;
+        parent::__construct($parameters);
+    }
+
+    /**
+     * see http://php.net/manual/en/function.filesize.php
+     * The result for filesize when called on a folder is required to be 0
+     *
+     * @param string $path
+     * @return int
+     */
+    public function filesize($path) {
+        $fullPath = $this->getFullPath($path);
+
+        /** @var CacheEntry $info */
+        $info = $this->getCache()->get($path);
+        if (isset($this->unencryptedSize[$fullPath])) {
+            $size = $this->unencryptedSize[$fullPath];
+            // update file cache
+            if ($info instanceof ICacheEntry) {
+                $info = $info->getData();
+                $info['encrypted'] = $info['encryptedVersion'];
+            } else {
+                if (!is_array($info)) {
+                    $info = [];
+                }
+                $info['encrypted'] = true;
+            }
+
+            $info['size'] = $size;
+            $this->getCache()->put($path, $info);
+
+            return $size;
+        }
+
+        if (isset($info['fileid']) && $info['encrypted']) {
+            return $this->verifyUnencryptedSize($path, $info['size']);
+        }
+
+        return $this->storage->filesize($path);
+    }
+
+    /**
+     * @param string $path
+     * @return array
+     */
+    public function getMetaData($path) {
+        $data = $this->storage->getMetaData($path);
+        if (is_null($data)) {
+            return null;
+        }
+        $fullPath = $this->getFullPath($path);
+        $info = $this->getCache()->get($path);
+
+        if (isset($this->unencryptedSize[$fullPath])) {
+            $data['encrypted'] = true;
+            $data['size'] = $this->unencryptedSize[$fullPath];
+        } else {
+            if (isset($info['fileid']) && $info['encrypted']) {
+                $data['size'] = $this->verifyUnencryptedSize($path, $info['size']);
+                $data['encrypted'] = true;
+            }
+        }
+
+        if (isset($info['encryptedVersion']) && $info['encryptedVersion'] > 1) {
+            $data['encryptedVersion'] = $info['encryptedVersion'];
+        }
+
+        return $data;
+    }
+
+    /**
+     * see http://php.net/manual/en/function.file_get_contents.php
+     *
+     * @param string $path
+     * @return string
+     */
+    public function file_get_contents($path) {
+
+        $encryptionModule = $this->getEncryptionModule($path);
+
+        if ($encryptionModule) {
+            $handle = $this->fopen($path, "r");
+            if (!$handle) {
+                return false;
+            }
+            $data = stream_get_contents($handle);
+            fclose($handle);
+            return $data;
+        }
+        return $this->storage->file_get_contents($path);
+    }
+
+    /**
+     * see http://php.net/manual/en/function.file_put_contents.php
+     *
+     * @param string $path
+     * @param string $data
+     * @return bool
+     */
+    public function file_put_contents($path, $data) {
+        // file put content will always be translated to a stream write
+        $handle = $this->fopen($path, 'w');
+        if (is_resource($handle)) {
+            $written = fwrite($handle, $data);
+            fclose($handle);
+            return $written;
+        }
+
+        return false;
+    }
+
+    /**
+     * see http://php.net/manual/en/function.unlink.php
+     *
+     * @param string $path
+     * @return bool
+     */
+    public function unlink($path) {
+        $fullPath = $this->getFullPath($path);
+        if ($this->util->isExcluded($fullPath)) {
+            return $this->storage->unlink($path);
+        }
+
+        $encryptionModule = $this->getEncryptionModule($path);
+        if ($encryptionModule) {
+            $this->keyStorage->deleteAllFileKeys($this->getFullPath($path));
+        }
+
+        return $this->storage->unlink($path);
+    }
+
+    /**
+     * see http://php.net/manual/en/function.rename.php
+     *
+     * @param string $path1
+     * @param string $path2
+     * @return bool
+     */
+    public function rename($path1, $path2) {
+
+        $result = $this->storage->rename($path1, $path2);
+
+        if ($result &&
+            // versions always use the keys from the original file, so we can skip
+            // this step for versions
+            $this->isVersion($path2) === false &&
+            $this->encryptionManager->isEnabled()) {
+            $source = $this->getFullPath($path1);
+            if (!$this->util->isExcluded($source)) {
+                $target = $this->getFullPath($path2);
+                if (isset($this->unencryptedSize[$source])) {
+                    $this->unencryptedSize[$target] = $this->unencryptedSize[$source];
+                }
+                $this->keyStorage->renameKeys($source, $target);
+                $module = $this->getEncryptionModule($path2);
+                if ($module) {
+                    $module->update($target, $this->uid, []);
+                }
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * see http://php.net/manual/en/function.rmdir.php
+     *
+     * @param string $path
+     * @return bool
+     */
+    public function rmdir($path) {
+        $result = $this->storage->rmdir($path);
+        $fullPath = $this->getFullPath($path);
+        if ($result &&
+            $this->util->isExcluded($fullPath) === false &&
+            $this->encryptionManager->isEnabled()
+        ) {
+            $this->keyStorage->deleteAllFileKeys($fullPath);
+        }
+
+        return $result;
+    }
+
+    /**
+     * check if a file can be read
+     *
+     * @param string $path
+     * @return bool
+     */
+    public function isReadable($path) {
+
+        $isReadable = true;
+
+        $metaData = $this->getMetaData($path);
+        if (
+            !$this->is_dir($path) &&
+            isset($metaData['encrypted']) &&
+            $metaData['encrypted'] === true
+        ) {
+            $fullPath = $this->getFullPath($path);
+            $module = $this->getEncryptionModule($path);
+            $isReadable = $module->isReadable($fullPath, $this->uid);
+        }
+
+        return $this->storage->isReadable($path) && $isReadable;
+    }
+
+    /**
+     * see http://php.net/manual/en/function.copy.php
+     *
+     * @param string $path1
+     * @param string $path2
+     * @return bool
+     */
+    public function copy($path1, $path2) {
+
+        $source = $this->getFullPath($path1);
+
+        if ($this->util->isExcluded($source)) {
+            return $this->storage->copy($path1, $path2);
+        }
+
+        // need to stream copy file by file in case we copy between a encrypted
+        // and a unencrypted storage
+        $this->unlink($path2);
+        $result = $this->copyFromStorage($this, $path1, $path2);
+
+        return $result;
+    }
+
+    /**
+     * see http://php.net/manual/en/function.fopen.php
+     *
+     * @param string $path
+     * @param string $mode
+     * @return resource|bool
+     * @throws GenericEncryptionException
+     * @throws ModuleDoesNotExistsException
+     */
+    public function fopen($path, $mode) {
+
+        // check if the file is stored in the array cache, this means that we
+        // copy a file over to the versions folder, in this case we don't want to
+        // decrypt it
+        if ($this->arrayCache->hasKey('encryption_copy_version_' . $path)) {
+            $this->arrayCache->remove('encryption_copy_version_' . $path);
+            return $this->storage->fopen($path, $mode);
+        }
+
+        $encryptionEnabled = $this->encryptionManager->isEnabled();
+        $shouldEncrypt = false;
+        $encryptionModule = null;
+        $header = $this->getHeader($path);
+        $signed = (isset($header['signed']) && $header['signed'] === 'true') ? true : false;
+        $fullPath = $this->getFullPath($path);
+        $encryptionModuleId = $this->util->getEncryptionModuleId($header);
+
+        if ($this->util->isExcluded($fullPath) === false) {
+
+            $size = $unencryptedSize = 0;
+            $realFile = $this->util->stripPartialFileExtension($path);
+            $targetExists = $this->file_exists($realFile) || $this->file_exists($path);
+            $targetIsEncrypted = false;
+            if ($targetExists) {
+                // in case the file exists we require the explicit module as
+                // specified in the file header - otherwise we need to fail hard to
+                // prevent data loss on client side
+                if (!empty($encryptionModuleId)) {
+                    $targetIsEncrypted = true;
+                    $encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
+                }
+
+                if ($this->file_exists($path)) {
+                    $size = $this->storage->filesize($path);
+                    $unencryptedSize = $this->filesize($path);
+                } else {
+                    $size = $unencryptedSize = 0;
+                }
+            }
+
+            try {
+
+                if (
+                    $mode === 'w'
+                    || $mode === 'w+'
+                    || $mode === 'wb'
+                    || $mode === 'wb+'
+                ) {
+                    // don't overwrite encrypted files if encryption is not enabled
+                    if ($targetIsEncrypted && $encryptionEnabled === false) {
+                        throw new GenericEncryptionException('Tried to access encrypted file but encryption is not enabled');
+                    }
+                    if ($encryptionEnabled) {
+                        // if $encryptionModuleId is empty, the default module will be used
+                        $encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
+                        $shouldEncrypt = $encryptionModule->shouldEncrypt($fullPath);
+                        $signed = true;
+                    }
+                } else {
+                    $info = $this->getCache()->get($path);
+                    // only get encryption module if we found one in the header
+                    // or if file should be encrypted according to the file cache
+                    if (!empty($encryptionModuleId)) {
+                        $encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
+                        $shouldEncrypt = true;
+                    } else if (empty($encryptionModuleId) && $info['encrypted'] === true) {
+                        // we come from a old installation. No header and/or no module defined
+                        // but the file is encrypted. In this case we need to use the
+                        // OC_DEFAULT_MODULE to read the file
+                        $encryptionModule = $this->encryptionManager->getEncryptionModule('OC_DEFAULT_MODULE');
+                        $shouldEncrypt = true;
+                        $targetIsEncrypted = true;
+                    }
+                }
+            } catch (ModuleDoesNotExistsException $e) {
+                $this->logger->warning('Encryption module "' . $encryptionModuleId .
+                    '" not found, file will be stored unencrypted (' . $e->getMessage() . ')');
+            }
+
+            // encryption disabled on write of new file and write to existing unencrypted file -> don't encrypt
+            if (!$encryptionEnabled || !$this->shouldEncrypt($path)) {
+                if (!$targetExists || !$targetIsEncrypted) {
+                    $shouldEncrypt = false;
+                }
+            }
+
+            if ($shouldEncrypt === true && $encryptionModule !== null) {
+                $headerSize = $this->getHeaderSize($path);
+                $source = $this->storage->fopen($path, $mode);
+                if (!is_resource($source)) {
+                    return false;
+                }
+                $handle = \OC\Files\Stream\Encryption::wrap($source, $path, $fullPath, $header,
+                    $this->uid, $encryptionModule, $this->storage, $this, $this->util, $this->fileHelper, $mode,
+                    $size, $unencryptedSize, $headerSize, $signed);
+                return $handle;
+            }
+
+        }
+
+        return $this->storage->fopen($path, $mode);
+    }
+
+
+    /**
+     * perform some plausibility checks if the the unencrypted size is correct.
+     * If not, we calculate the correct unencrypted size and return it
+     *
+     * @param string $path internal path relative to the storage root
+     * @param int $unencryptedSize size of the unencrypted file
+     *
+     * @return int unencrypted size
+     */
+    protected function verifyUnencryptedSize($path, $unencryptedSize) {
+
+        $size = $this->storage->filesize($path);
+        $result = $unencryptedSize;
+
+        if ($unencryptedSize < 0 ||
+            ($size > 0 && $unencryptedSize === $size)
+        ) {
+            // check if we already calculate the unencrypted size for the
+            // given path to avoid recursions
+            if (isset($this->fixUnencryptedSizeOf[$this->getFullPath($path)]) === false) {
+                $this->fixUnencryptedSizeOf[$this->getFullPath($path)] = true;
+                try {
+                    $result = $this->fixUnencryptedSize($path, $size, $unencryptedSize);
+                } catch (\Exception $e) {
+                    $this->logger->error('Couldn\'t re-calculate unencrypted size for '. $path);
+                    $this->logger->logException($e);
+                }
+                unset($this->fixUnencryptedSizeOf[$this->getFullPath($path)]);
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * calculate the unencrypted size
+     *
+     * @param string $path internal path relative to the storage root
+     * @param int $size size of the physical file
+     * @param int $unencryptedSize size of the unencrypted file
+     *
+     * @return int calculated unencrypted size
+     */
+    protected function fixUnencryptedSize($path, $size, $unencryptedSize) {
+
+        $headerSize = $this->getHeaderSize($path);
+        $header = $this->getHeader($path);
+        $encryptionModule = $this->getEncryptionModule($path);
+
+        $stream = $this->storage->fopen($path, 'r');
+
+        // if we couldn't open the file we return the old unencrypted size
+        if (!is_resource($stream)) {
+            $this->logger->error('Could not open ' . $path . '. Recalculation of unencrypted size aborted.');
+            return $unencryptedSize;
+        }
+
+        $newUnencryptedSize = 0;
+        $size -= $headerSize;
+        $blockSize = $this->util->getBlockSize();
+
+        // if a header exists we skip it
+        if ($headerSize > 0) {
+            fread($stream, $headerSize);
+        }
+
+        // fast path, else the calculation for $lastChunkNr is bogus
+        if ($size === 0) {
+            return 0;
+        }
+
+        $signed = (isset($header['signed']) && $header['signed'] === 'true') ? true : false;
+        $unencryptedBlockSize = $encryptionModule->getUnencryptedBlockSize($signed);
+
+        // calculate last chunk nr
+        // next highest is end of chunks, one subtracted is last one
+        // we have to read the last chunk, we can't just calculate it (because of padding etc)
+
+        $lastChunkNr = ceil($size/ $blockSize)-1;
+        // calculate last chunk position
+        $lastChunkPos = ($lastChunkNr * $blockSize);
+        // try to fseek to the last chunk, if it fails we have to read the whole file
+        if (@fseek($stream, $lastChunkPos, SEEK_CUR) === 0) {
+            $newUnencryptedSize += $lastChunkNr * $unencryptedBlockSize;
+        }
+
+        $lastChunkContentEncrypted='';
+        $count = $blockSize;
+
+        while ($count > 0) {
+            $data=fread($stream, $blockSize);
+            $count=strlen($data);
+            $lastChunkContentEncrypted .= $data;
+            if(strlen($lastChunkContentEncrypted) > $blockSize) {
+                $newUnencryptedSize += $unencryptedBlockSize;
+                $lastChunkContentEncrypted=substr($lastChunkContentEncrypted, $blockSize);
+            }
+        }
+
+        fclose($stream);
+
+        // we have to decrypt the last chunk to get it actual size
+        $encryptionModule->begin($this->getFullPath($path), $this->uid, 'r', $header, []);
+        $decryptedLastChunk = $encryptionModule->decrypt($lastChunkContentEncrypted, $lastChunkNr . 'end');
+        $decryptedLastChunk .= $encryptionModule->end($this->getFullPath($path), $lastChunkNr . 'end');
+
+        // calc the real file size with the size of the last chunk
+        $newUnencryptedSize += strlen($decryptedLastChunk);
+
+        $this->updateUnencryptedSize($this->getFullPath($path), $newUnencryptedSize);
+
+        // write to cache if applicable
+        $cache = $this->storage->getCache();
+        if ($cache) {
+            $entry = $cache->get($path);
+            $cache->update($entry['fileid'], ['size' => $newUnencryptedSize]);
+        }
+
+        return $newUnencryptedSize;
+    }
+
+    /**
+     * @param Storage $sourceStorage
+     * @param string $sourceInternalPath
+     * @param string $targetInternalPath
+     * @param bool $preserveMtime
+     * @return bool
+     */
+    public function moveFromStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = true) {
+        if ($sourceStorage === $this) {
+            return $this->rename($sourceInternalPath, $targetInternalPath);
+        }
+
+        // TODO clean this up once the underlying moveFromStorage in OC\Files\Storage\Wrapper\Common is fixed:
+        // - call $this->storage->moveFromStorage() instead of $this->copyBetweenStorage
+        // - copy the file cache update from  $this->copyBetweenStorage to this method
+        // - copy the copyKeys() call from  $this->copyBetweenStorage to this method
+        // - remove $this->copyBetweenStorage
+
+        if (!$sourceStorage->isDeletable($sourceInternalPath)) {
+            return false;
+        }
+
+        $result = $this->copyBetweenStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, true);
+        if ($result) {
+            if ($sourceStorage->is_dir($sourceInternalPath)) {
+                $result &= $sourceStorage->rmdir($sourceInternalPath);
+            } else {
+                $result &= $sourceStorage->unlink($sourceInternalPath);
+            }
+        }
+        return $result;
+    }
+
+
+    /**
+     * @param Storage $sourceStorage
+     * @param string $sourceInternalPath
+     * @param string $targetInternalPath
+     * @param bool $preserveMtime
+     * @param bool $isRename
+     * @return bool
+     */
+    public function copyFromStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = false, $isRename = false) {
+
+        // TODO clean this up once the underlying moveFromStorage in OC\Files\Storage\Wrapper\Common is fixed:
+        // - call $this->storage->copyFromStorage() instead of $this->copyBetweenStorage
+        // - copy the file cache update from  $this->copyBetweenStorage to this method
+        // - copy the copyKeys() call from  $this->copyBetweenStorage to this method
+        // - remove $this->copyBetweenStorage
+
+        return $this->copyBetweenStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, $isRename);
+    }
+
+    /**
+     * Update the encrypted cache version in the database
+     *
+     * @param Storage $sourceStorage
+     * @param string $sourceInternalPath
+     * @param string $targetInternalPath
+     * @param bool $isRename
+     */
+    private function updateEncryptedVersion(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename) {
+        $isEncrypted = $this->encryptionManager->isEnabled() && $this->shouldEncrypt($targetInternalPath) ? 1 : 0;
+        $cacheInformation = [
+            'encrypted' => (bool)$isEncrypted,
+        ];
+        if($isEncrypted === 1) {
+            $encryptedVersion = $sourceStorage->getCache()->get($sourceInternalPath)['encryptedVersion'];
+
+            // In case of a move operation from an unencrypted to an encrypted
+            // storage the old encrypted version would stay with "0" while the
+            // correct value would be "1". Thus we manually set the value to "1"
+            // for those cases.
+            // See also https://github.com/owncloud/core/issues/23078
+            if($encryptedVersion === 0) {
+                $encryptedVersion = 1;
+            }
+
+            $cacheInformation['encryptedVersion'] = $encryptedVersion;
+        }
+
+        // in case of a rename we need to manipulate the source cache because
+        // this information will be kept for the new target
+        if ($isRename) {
+            $sourceStorage->getCache()->put($sourceInternalPath, $cacheInformation);
+        } else {
+            $this->getCache()->put($targetInternalPath, $cacheInformation);
+        }
+    }
+
+    /**
+     * copy file between two storages
+     *
+     * @param Storage $sourceStorage
+     * @param string $sourceInternalPath
+     * @param string $targetInternalPath
+     * @param bool $preserveMtime
+     * @param bool $isRename
+     * @return bool
+     * @throws \Exception
+     */
+    private function copyBetweenStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, $isRename) {
+
+        // for versions we have nothing to do, because versions should always use the
+        // key from the original file. Just create a 1:1 copy and done
+        if ($this->isVersion($targetInternalPath) ||
+            $this->isVersion($sourceInternalPath)) {
+            // remember that we try to create a version so that we can detect it during
+            // fopen($sourceInternalPath) and by-pass the encryption in order to
+            // create a 1:1 copy of the file
+            $this->arrayCache->set('encryption_copy_version_' . $sourceInternalPath, true);
+            $result = $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+            $this->arrayCache->remove('encryption_copy_version_' . $sourceInternalPath);
+            if ($result) {
+                $info = $this->getCache('', $sourceStorage)->get($sourceInternalPath);
+                // make sure that we update the unencrypted size for the version
+                if (isset($info['encrypted']) && $info['encrypted'] === true) {
+                    $this->updateUnencryptedSize(
+                        $this->getFullPath($targetInternalPath),
+                        $info['size']
+                    );
+                }
+                $this->updateEncryptedVersion($sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename);
+            }
+            return $result;
+        }
+
+        // first copy the keys that we reuse the existing file key on the target location
+        // and don't create a new one which would break versions for example.
+        $mount = $this->mountManager->findByStorageId($sourceStorage->getId());
+        if (count($mount) === 1) {
+            $mountPoint = $mount[0]->getMountPoint();
+            $source = $mountPoint . '/' . $sourceInternalPath;
+            $target = $this->getFullPath($targetInternalPath);
+            $this->copyKeys($source, $target);
+        } else {
+            $this->logger->error('Could not find mount point, can\'t keep encryption keys');
+        }
+
+        if ($sourceStorage->is_dir($sourceInternalPath)) {
+            $dh = $sourceStorage->opendir($sourceInternalPath);
+            $result = $this->mkdir($targetInternalPath);
+            if (is_resource($dh)) {
+                while ($result and ($file = readdir($dh)) !== false) {
+                    if (!Filesystem::isIgnoredDir($file)) {
+                        $result &= $this->copyFromStorage($sourceStorage, $sourceInternalPath . '/' . $file, $targetInternalPath . '/' . $file, false, $isRename);
+                    }
+                }
+            }
+        } else {
+            try {
+                $source = $sourceStorage->fopen($sourceInternalPath, 'r');
+                $target = $this->fopen($targetInternalPath, 'w');
+                list(, $result) = \OC_Helper::streamCopy($source, $target);
+                fclose($source);
+                fclose($target);
+            } catch (\Exception $e) {
+                fclose($source);
+                fclose($target);
+                throw $e;
+            }
+            if($result) {
+                if ($preserveMtime) {
+                    $this->touch($targetInternalPath, $sourceStorage->filemtime($sourceInternalPath));
+                }
+                $this->updateEncryptedVersion($sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename);
+            } else {
+                // delete partially written target file
+                $this->unlink($targetInternalPath);
+                // delete cache entry that was created by fopen
+                $this->getCache()->remove($targetInternalPath);
+            }
+        }
+        return (bool)$result;
+
+    }
+
+    /**
+     * get the path to a local version of the file.
+     * The local version of the file can be temporary and doesn't have to be persistent across requests
+     *
+     * @param string $path
+     * @return string
+     */
+    public function getLocalFile($path) {
+        if ($this->encryptionManager->isEnabled()) {
+            $cachedFile = $this->getCachedFile($path);
+            if (is_string($cachedFile)) {
+                return $cachedFile;
+            }
+        }
+        return $this->storage->getLocalFile($path);
+    }
+
+    /**
+     * Returns the wrapped storage's value for isLocal()
+     *
+     * @return bool wrapped storage's isLocal() value
+     */
+    public function isLocal() {
+        if ($this->encryptionManager->isEnabled()) {
+            return false;
+        }
+        return $this->storage->isLocal();
+    }
+
+    /**
+     * see http://php.net/manual/en/function.stat.php
+     * only the following keys are required in the result: size and mtime
+     *
+     * @param string $path
+     * @return array
+     */
+    public function stat($path) {
+        $stat = $this->storage->stat($path);
+        $fileSize = $this->filesize($path);
+        $stat['size'] = $fileSize;
+        $stat[7] = $fileSize;
+        return $stat;
+    }
+
+    /**
+     * see http://php.net/manual/en/function.hash.php
+     *
+     * @param string $type
+     * @param string $path
+     * @param bool $raw
+     * @return string
+     */
+    public function hash($type, $path, $raw = false) {
+        $fh = $this->fopen($path, 'rb');
+        $ctx = hash_init($type);
+        hash_update_stream($ctx, $fh);
+        fclose($fh);
+        return hash_final($ctx, $raw);
+    }
+
+    /**
+     * return full path, including mount point
+     *
+     * @param string $path relative to mount point
+     * @return string full path including mount point
+     */
+    protected function getFullPath($path) {
+        return Filesystem::normalizePath($this->mountPoint . '/' . $path);
+    }
+
+    /**
+     * read first block of encrypted file, typically this will contain the
+     * encryption header
+     *
+     * @param string $path
+     * @return string
+     */
+    protected function readFirstBlock($path) {
+        $firstBlock = '';
+        if ($this->storage->file_exists($path)) {
+            $handle = $this->storage->fopen($path, 'r');
+            $firstBlock = fread($handle, $this->util->getHeaderSize());
+            fclose($handle);
+        }
+        return $firstBlock;
+    }
+
+    /**
+     * return header size of given file
+     *
+     * @param string $path
+     * @return int
+     */
+    protected function getHeaderSize($path) {
+        $headerSize = 0;
+        $realFile = $this->util->stripPartialFileExtension($path);
+        if ($this->storage->file_exists($realFile)) {
+            $path = $realFile;
+        }
+        $firstBlock = $this->readFirstBlock($path);
+
+        if (substr($firstBlock, 0, strlen(Util::HEADER_START)) === Util::HEADER_START) {
+            $headerSize = $this->util->getHeaderSize();
+        }
+
+        return $headerSize;
+    }
+
+    /**
+     * parse raw header to array
+     *
+     * @param string $rawHeader
+     * @return array
+     */
+    protected function parseRawHeader($rawHeader) {
+        $result = array();
+        if (substr($rawHeader, 0, strlen(Util::HEADER_START)) === Util::HEADER_START) {
+            $header = $rawHeader;
+            $endAt = strpos($header, Util::HEADER_END);
+            if ($endAt !== false) {
+                $header = substr($header, 0, $endAt + strlen(Util::HEADER_END));
+
+                // +1 to not start with an ':' which would result in empty element at the beginning
+                $exploded = explode(':', substr($header, strlen(Util::HEADER_START)+1));
+
+                $element = array_shift($exploded);
+                while ($element !== Util::HEADER_END) {
+                    $result[$element] = array_shift($exploded);
+                    $element = array_shift($exploded);
+                }
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * read header from file
+     *
+     * @param string $path
+     * @return array
+     */
+    protected function getHeader($path) {
+        $realFile = $this->util->stripPartialFileExtension($path);
+        if ($this->storage->file_exists($realFile)) {
+            $path = $realFile;
+        }
+
+        $firstBlock = $this->readFirstBlock($path);
+        $result = $this->parseRawHeader($firstBlock);
+
+        // if the header doesn't contain a encryption module we check if it is a
+        // legacy file. If true, we add the default encryption module
+        if (!isset($result[Util::HEADER_ENCRYPTION_MODULE_KEY])) {
+            if (!empty($result)) {
+                $result[Util::HEADER_ENCRYPTION_MODULE_KEY] = 'OC_DEFAULT_MODULE';
+            } else {
+                // if the header was empty we have to check first if it is a encrypted file at all
+                $info = $this->getCache()->get($path);
+                if (isset($info['encrypted']) && $info['encrypted'] === true) {
+                    $result[Util::HEADER_ENCRYPTION_MODULE_KEY] = 'OC_DEFAULT_MODULE';
+                }
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * read encryption module needed to read/write the file located at $path
+     *
+     * @param string $path
+     * @return null|\OCP\Encryption\IEncryptionModule
+     * @throws ModuleDoesNotExistsException
+     * @throws \Exception
+     */
+    protected function getEncryptionModule($path) {
+        $encryptionModule = null;
+        $header = $this->getHeader($path);
+        $encryptionModuleId = $this->util->getEncryptionModuleId($header);
+        if (!empty($encryptionModuleId)) {
+            try {
+                $encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
+            } catch (ModuleDoesNotExistsException $e) {
+                $this->logger->critical('Encryption module defined in "' . $path . '" not loaded!');
+                throw $e;
+            }
+        }
+
+        return $encryptionModule;
+    }
+
+    /**
+     * @param string $path
+     * @param int $unencryptedSize
+     */
+    public function updateUnencryptedSize($path, $unencryptedSize) {
+        $this->unencryptedSize[$path] = $unencryptedSize;
+    }
+
+    /**
+     * copy keys to new location
+     *
+     * @param string $source path relative to data/
+     * @param string $target path relative to data/
+     * @return bool
+     */
+    protected function copyKeys($source, $target) {
+        if (!$this->util->isExcluded($source)) {
+            return $this->keyStorage->copyKeys($source, $target);
+        }
+
+        return false;
+    }
+
+    /**
+     * check if path points to a files version
+     *
+     * @param $path
+     * @return bool
+     */
+    protected function isVersion($path) {
+        $normalized = Filesystem::normalizePath($path);
+        return substr($normalized, 0, strlen('/files_versions/')) === '/files_versions/';
+    }
+
+    /**
+     * check if the given storage should be encrypted or not
+     *
+     * @param $path
+     * @return bool
+     */
+    protected function shouldEncrypt($path) {
+        $fullPath = $this->getFullPath($path);
+        $mountPointConfig = $this->mount->getOption('encrypt', true);
+        if ($mountPointConfig === false) {
+            return false;
+        }
+
+        try {
+            $encryptionModule = $this->getEncryptionModule($fullPath);
+        } catch (ModuleDoesNotExistsException $e) {
+            return false;
+        }
+
+        if ($encryptionModule === null) {
+            $encryptionModule = $this->encryptionManager->getEncryptionModule();
+        }
+
+        return $encryptionModule->shouldEncrypt($fullPath);
+
+    }
 
 }

Spacing +26 added lines, -26 removed lines

@@ -368,8 +368,8 @@ 
 		// check if the file is stored in the array cache, this means that we
 		// copy a file over to the versions folder, in this case we don't want to
 		// decrypt it
-		if ($this->arrayCache->hasKey('encryption_copy_version_' . $path)) {
-			$this->arrayCache->remove('encryption_copy_version_' . $path);
+		if ($this->arrayCache->hasKey('encryption_copy_version_'.$path)) {
+			$this->arrayCache->remove('encryption_copy_version_'.$path);
 			return $this->storage->fopen($path, $mode);
 		}
 
@@ -439,8 +439,8 @@ 
 					}
 				}
 			} catch (ModuleDoesNotExistsException $e) {
-				$this->logger->warning('Encryption module "' . $encryptionModuleId .
-					'" not found, file will be stored unencrypted (' . $e->getMessage() . ')');
+				$this->logger->warning('Encryption module "'.$encryptionModuleId.
+					'" not found, file will be stored unencrypted ('.$e->getMessage().')');
 			}
 
 			// encryption disabled on write of new file and write to existing unencrypted file -> don't encrypt
@@ -492,7 +492,7 @@ 
 				try {
 					$result = $this->fixUnencryptedSize($path, $size, $unencryptedSize);
 				} catch (\Exception $e) {
-					$this->logger->error('Couldn\'t re-calculate unencrypted size for '. $path);
+					$this->logger->error('Couldn\'t re-calculate unencrypted size for '.$path);
 					$this->logger->logException($e);
 				}
 				unset($this->fixUnencryptedSizeOf[$this->getFullPath($path)]);
@@ -521,7 +521,7 @@ 
 
 		// if we couldn't open the file we return the old unencrypted size
 		if (!is_resource($stream)) {
-			$this->logger->error('Could not open ' . $path . '. Recalculation of unencrypted size aborted.');
+			$this->logger->error('Could not open '.$path.'. Recalculation of unencrypted size aborted.');
 			return $unencryptedSize;
 		}
 
@@ -546,7 +546,7 @@ 
 		// next highest is end of chunks, one subtracted is last one
 		// we have to read the last chunk, we can't just calculate it (because of padding etc)
 
-		$lastChunkNr = ceil($size/ $blockSize)-1;
+		$lastChunkNr = ceil($size / $blockSize) - 1;
 		// calculate last chunk position
 		$lastChunkPos = ($lastChunkNr * $blockSize);
 		// try to fseek to the last chunk, if it fails we have to read the whole file
@@ -554,16 +554,16 @@ 
 			$newUnencryptedSize += $lastChunkNr * $unencryptedBlockSize;
 		}
 
-		$lastChunkContentEncrypted='';
+		$lastChunkContentEncrypted = '';
 		$count = $blockSize;
 
 		while ($count > 0) {
-			$data=fread($stream, $blockSize);
-			$count=strlen($data);
+			$data = fread($stream, $blockSize);
+			$count = strlen($data);
 			$lastChunkContentEncrypted .= $data;
-			if(strlen($lastChunkContentEncrypted) > $blockSize) {
+			if (strlen($lastChunkContentEncrypted) > $blockSize) {
 				$newUnencryptedSize += $unencryptedBlockSize;
-				$lastChunkContentEncrypted=substr($lastChunkContentEncrypted, $blockSize);
+				$lastChunkContentEncrypted = substr($lastChunkContentEncrypted, $blockSize);
 			}
 		}
 
@@ -571,8 +571,8 @@ 
 
 		// we have to decrypt the last chunk to get it actual size
 		$encryptionModule->begin($this->getFullPath($path), $this->uid, 'r', $header, []);
-		$decryptedLastChunk = $encryptionModule->decrypt($lastChunkContentEncrypted, $lastChunkNr . 'end');
-		$decryptedLastChunk .= $encryptionModule->end($this->getFullPath($path), $lastChunkNr . 'end');
+		$decryptedLastChunk = $encryptionModule->decrypt($lastChunkContentEncrypted, $lastChunkNr.'end');
+		$decryptedLastChunk .= $encryptionModule->end($this->getFullPath($path), $lastChunkNr.'end');
 
 		// calc the real file size with the size of the last chunk
 		$newUnencryptedSize += strlen($decryptedLastChunk);
@@ -653,9 +653,9 @@ 
 	private function updateEncryptedVersion(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename) {
 		$isEncrypted = $this->encryptionManager->isEnabled() && $this->shouldEncrypt($targetInternalPath) ? 1 : 0;
 		$cacheInformation = [
-			'encrypted' => (bool)$isEncrypted,
+			'encrypted' => (bool) $isEncrypted,
 		];
-		if($isEncrypted === 1) {
+		if ($isEncrypted === 1) {
 			$encryptedVersion = $sourceStorage->getCache()->get($sourceInternalPath)['encryptedVersion'];
 
 			// In case of a move operation from an unencrypted to an encrypted
@@ -663,7 +663,7 @@ 
 			// correct value would be "1". Thus we manually set the value to "1"
 			// for those cases.
 			// See also https://github.com/owncloud/core/issues/23078
-			if($encryptedVersion === 0) {
+			if ($encryptedVersion === 0) {
 				$encryptedVersion = 1;
 			}
 
@@ -699,9 +699,9 @@ 
 			// remember that we try to create a version so that we can detect it during
 			// fopen($sourceInternalPath) and by-pass the encryption in order to
 			// create a 1:1 copy of the file
-			$this->arrayCache->set('encryption_copy_version_' . $sourceInternalPath, true);
+			$this->arrayCache->set('encryption_copy_version_'.$sourceInternalPath, true);
 			$result = $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-			$this->arrayCache->remove('encryption_copy_version_' . $sourceInternalPath);
+			$this->arrayCache->remove('encryption_copy_version_'.$sourceInternalPath);
 			if ($result) {
 				$info = $this->getCache('', $sourceStorage)->get($sourceInternalPath);
 				// make sure that we update the unencrypted size for the version
@@ -721,7 +721,7 @@ 
 		$mount = $this->mountManager->findByStorageId($sourceStorage->getId());
 		if (count($mount) === 1) {
 			$mountPoint = $mount[0]->getMountPoint();
-			$source = $mountPoint . '/' . $sourceInternalPath;
+			$source = $mountPoint.'/'.$sourceInternalPath;
 			$target = $this->getFullPath($targetInternalPath);
 			$this->copyKeys($source, $target);
 		} else {
@@ -734,7 +734,7 @@ 
 			if (is_resource($dh)) {
 				while ($result and ($file = readdir($dh)) !== false) {
 					if (!Filesystem::isIgnoredDir($file)) {
-						$result &= $this->copyFromStorage($sourceStorage, $sourceInternalPath . '/' . $file, $targetInternalPath . '/' . $file, false, $isRename);
+						$result &= $this->copyFromStorage($sourceStorage, $sourceInternalPath.'/'.$file, $targetInternalPath.'/'.$file, false, $isRename);
 					}
 				}
 			}
@@ -750,7 +750,7 @@ 
 				fclose($target);
 				throw $e;
 			}
-			if($result) {
+			if ($result) {
 				if ($preserveMtime) {
 					$this->touch($targetInternalPath, $sourceStorage->filemtime($sourceInternalPath));
 				}
@@ -762,7 +762,7 @@ 
 				$this->getCache()->remove($targetInternalPath);
 			}
 		}
-		return (bool)$result;
+		return (bool) $result;
 
 	}
 
@@ -833,7 +833,7 @@ 
 	 * @return string full path including mount point
 	 */
 	protected function getFullPath($path) {
-		return Filesystem::normalizePath($this->mountPoint . '/' . $path);
+		return Filesystem::normalizePath($this->mountPoint.'/'.$path);
 	}
 
 	/**
@@ -889,7 +889,7 @@ 
 				$header = substr($header, 0, $endAt + strlen(Util::HEADER_END));
 
 				// +1 to not start with an ':' which would result in empty element at the beginning
-				$exploded = explode(':', substr($header, strlen(Util::HEADER_START)+1));
+				$exploded = explode(':', substr($header, strlen(Util::HEADER_START) + 1));
 
 				$element = array_shift($exploded);
 				while ($element !== Util::HEADER_END) {
@@ -950,7 +950,7 @@ 
 			try {
 				$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
 			} catch (ModuleDoesNotExistsException $e) {
-				$this->logger->critical('Encryption module defined in "' . $path . '" not loaded!');
+				$this->logger->critical('Encryption module defined in "'.$path.'" not loaded!');
 				throw $e;
 			}
 		}

apps/dav/lib/AppInfo/Application.php

Unused Use Statements -1 removed lines

@@ -25,7 +25,6 @@
 namespace OCA\DAV\AppInfo;
 
 use OCA\DAV\CalDAV\Activity\Backend;
-use OCA\DAV\CalDAV\Activity\Extension;
 use OCA\DAV\CalDAV\Activity\Provider\Event;
 use OCA\DAV\CalDAV\BirthdayService;
 use OCA\DAV\Capabilities;

Indentation +126 added lines, -126 removed lines

@@ -39,134 +39,134 @@
 
 class Application extends App {
 
-	/**
-	 * Application constructor.
-	 */
-	public function __construct() {
-		parent::__construct('dav');
+    /**
+     * Application constructor.
+     */
+    public function __construct() {
+        parent::__construct('dav');
 
-		/*
+        /*
 		 * Register capabilities
 		 */
-		$this->getContainer()->registerCapability(Capabilities::class);
-	}
-
-	/**
-	 * @param IManager $contactsManager
-	 * @param string $userID
-	 */
-	public function setupContactsProvider(IManager $contactsManager, $userID) {
-		/** @var ContactsManager $cm */
-		$cm = $this->getContainer()->query(ContactsManager::class);
-		$urlGenerator = $this->getContainer()->getServer()->getURLGenerator();
-		$cm->setupContactsProvider($contactsManager, $userID, $urlGenerator);
-	}
-
-	public function registerHooks() {
-		/** @var HookManager $hm */
-		$hm = $this->getContainer()->query(HookManager::class);
-		$hm->setup();
-
-		$dispatcher = $this->getContainer()->getServer()->getEventDispatcher();
-
-		// first time login event setup
-		$dispatcher->addListener(IUser::class . '::firstLogin', function ($event) use ($hm) {
-			if ($event instanceof GenericEvent) {
-				$hm->firstLogin($event->getSubject());
-			}
-		});
-
-		// carddav/caldav sync event setup
-		$listener = function($event) {
-			if ($event instanceof GenericEvent) {
-				/** @var BirthdayService $b */
-				$b = $this->getContainer()->query(BirthdayService::class);
-				$b->onCardChanged(
-					$event->getArgument('addressBookId'),
-					$event->getArgument('cardUri'),
-					$event->getArgument('cardData')
-				);
-			}
-		};
-
-		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::createCard', $listener);
-		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::updateCard', $listener);
-		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::deleteCard', function($event) {
-			if ($event instanceof GenericEvent) {
-				/** @var BirthdayService $b */
-				$b = $this->getContainer()->query(BirthdayService::class);
-				$b->onCardDeleted(
-					$event->getArgument('addressBookId'),
-					$event->getArgument('cardUri')
-				);
-			}
-		});
-
-		$dispatcher->addListener('OC\AccountManager::userUpdated', function(GenericEvent $event) {
-			$user = $event->getSubject();
-			$syncService = $this->getContainer()->query(SyncService::class);
-			$syncService->updateUser($user);
-		});
-
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::createCalendar', function(GenericEvent $event) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-			$backend->onCalendarAdd(
-				$event->getArgument('calendarData')
-			);
-		});
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateCalendar', function(GenericEvent $event) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-			$backend->onCalendarUpdate(
-				$event->getArgument('calendarData'),
-				$event->getArgument('shares'),
-				$event->getArgument('propertyMutations')
-			);
-		});
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::deleteCalendar', function(GenericEvent $event) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-			$backend->onCalendarDelete(
-				$event->getArgument('calendarData'),
-				$event->getArgument('shares')
-			);
-		});
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateShares', function(GenericEvent $event) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-			$backend->onCalendarUpdateShares(
-				$event->getArgument('calendarData'),
-				$event->getArgument('shares'),
-				$event->getArgument('add'),
-				$event->getArgument('remove')
-			);
-		});
-
-		$listener = function(GenericEvent $event, $eventName) {
-			/** @var Backend $backend */
-			$backend = $this->getContainer()->query(Backend::class);
-
-			$subject = Event::SUBJECT_OBJECT_ADD;
-			if ($eventName === '\OCA\DAV\CalDAV\CalDavBackend::updateCalendarObject') {
-				$subject = Event::SUBJECT_OBJECT_UPDATE;
-			} else if ($eventName === '\OCA\DAV\CalDAV\CalDavBackend::deleteCalendarObject') {
-				$subject = Event::SUBJECT_OBJECT_DELETE;
-			}
-			$backend->onTouchCalendarObject(
-				$subject,
-				$event->getArgument('calendarData'),
-				$event->getArgument('shares'),
-				$event->getArgument('objectData')
-			);
-		};
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::createCalendarObject', $listener);
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateCalendarObject', $listener);
-		$dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::deleteCalendarObject', $listener);
-	}
-
-	public function getSyncService() {
-		return $this->getContainer()->query(SyncService::class);
-	}
+        $this->getContainer()->registerCapability(Capabilities::class);
+    }
+
+    /**
+     * @param IManager $contactsManager
+     * @param string $userID
+     */
+    public function setupContactsProvider(IManager $contactsManager, $userID) {
+        /** @var ContactsManager $cm */
+        $cm = $this->getContainer()->query(ContactsManager::class);
+        $urlGenerator = $this->getContainer()->getServer()->getURLGenerator();
+        $cm->setupContactsProvider($contactsManager, $userID, $urlGenerator);
+    }
+
+    public function registerHooks() {
+        /** @var HookManager $hm */
+        $hm = $this->getContainer()->query(HookManager::class);
+        $hm->setup();
+
+        $dispatcher = $this->getContainer()->getServer()->getEventDispatcher();
+
+        // first time login event setup
+        $dispatcher->addListener(IUser::class . '::firstLogin', function ($event) use ($hm) {
+            if ($event instanceof GenericEvent) {
+                $hm->firstLogin($event->getSubject());
+            }
+        });
+
+        // carddav/caldav sync event setup
+        $listener = function($event) {
+            if ($event instanceof GenericEvent) {
+                /** @var BirthdayService $b */
+                $b = $this->getContainer()->query(BirthdayService::class);
+                $b->onCardChanged(
+                    $event->getArgument('addressBookId'),
+                    $event->getArgument('cardUri'),
+                    $event->getArgument('cardData')
+                );
+            }
+        };
+
+        $dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::createCard', $listener);
+        $dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::updateCard', $listener);
+        $dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::deleteCard', function($event) {
+            if ($event instanceof GenericEvent) {
+                /** @var BirthdayService $b */
+                $b = $this->getContainer()->query(BirthdayService::class);
+                $b->onCardDeleted(
+                    $event->getArgument('addressBookId'),
+                    $event->getArgument('cardUri')
+                );
+            }
+        });
+
+        $dispatcher->addListener('OC\AccountManager::userUpdated', function(GenericEvent $event) {
+            $user = $event->getSubject();
+            $syncService = $this->getContainer()->query(SyncService::class);
+            $syncService->updateUser($user);
+        });
+
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::createCalendar', function(GenericEvent $event) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+            $backend->onCalendarAdd(
+                $event->getArgument('calendarData')
+            );
+        });
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateCalendar', function(GenericEvent $event) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+            $backend->onCalendarUpdate(
+                $event->getArgument('calendarData'),
+                $event->getArgument('shares'),
+                $event->getArgument('propertyMutations')
+            );
+        });
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::deleteCalendar', function(GenericEvent $event) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+            $backend->onCalendarDelete(
+                $event->getArgument('calendarData'),
+                $event->getArgument('shares')
+            );
+        });
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateShares', function(GenericEvent $event) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+            $backend->onCalendarUpdateShares(
+                $event->getArgument('calendarData'),
+                $event->getArgument('shares'),
+                $event->getArgument('add'),
+                $event->getArgument('remove')
+            );
+        });
+
+        $listener = function(GenericEvent $event, $eventName) {
+            /** @var Backend $backend */
+            $backend = $this->getContainer()->query(Backend::class);
+
+            $subject = Event::SUBJECT_OBJECT_ADD;
+            if ($eventName === '\OCA\DAV\CalDAV\CalDavBackend::updateCalendarObject') {
+                $subject = Event::SUBJECT_OBJECT_UPDATE;
+            } else if ($eventName === '\OCA\DAV\CalDAV\CalDavBackend::deleteCalendarObject') {
+                $subject = Event::SUBJECT_OBJECT_DELETE;
+            }
+            $backend->onTouchCalendarObject(
+                $subject,
+                $event->getArgument('calendarData'),
+                $event->getArgument('shares'),
+                $event->getArgument('objectData')
+            );
+        };
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::createCalendarObject', $listener);
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::updateCalendarObject', $listener);
+        $dispatcher->addListener('\OCA\DAV\CalDAV\CalDavBackend::deleteCalendarObject', $listener);
+    }
+
+    public function getSyncService() {
+        return $this->getContainer()->query(SyncService::class);
+    }
 
 }

Spacing +1 added lines, -1 removed lines

@@ -70,7 +70,7 @@
 		$dispatcher = $this->getContainer()->getServer()->getEventDispatcher();
 
 		// first time login event setup
-		$dispatcher->addListener(IUser::class . '::firstLogin', function ($event) use ($hm) {
+		$dispatcher->addListener(IUser::class.'::firstLogin', function($event) use ($hm) {
 			if ($event instanceof GenericEvent) {
 				$hm->firstLogin($event->getSubject());
 			}

apps/files_external/lib/Lib/Storage/AmazonS3.php

Doc Comments +6 added lines

@@ -191,6 +191,9 @@ 
 		return false;
 	}
 
+	/**
+	 * @param string $path
+	 */
 	private function batchDelete ($path = null) {
 		$params = array(
 			'Bucket' => $this->bucket
@@ -516,6 +519,9 @@ 
 		return $this->id;
 	}
 
+	/**
+	 * @param string $path
+	 */
 	public function writeBack($tmpFile, $path) {
 		try {
 			$this->getConnection()->putObject(array(

Indentation +494 added lines, -494 removed lines

@@ -37,7 +37,7 @@ 
 namespace OCA\Files_External\Lib\Storage;
 
 set_include_path(get_include_path() . PATH_SEPARATOR .
-	\OC_App::getAppPath('files_external') . '/3rdparty/aws-sdk-php');
+    \OC_App::getAppPath('files_external') . '/3rdparty/aws-sdk-php');
 require_once 'aws-autoloader.php';
 
 use Aws\S3\S3Client;
@@ -47,498 +47,498 @@ 
 use OC\Files\ObjectStore\S3ConnectionTrait;
 
 class AmazonS3 extends \OC\Files\Storage\Common {
-	use S3ConnectionTrait;
-
-	/**
-	 * @var array
-	 */
-	private static $tmpFiles = array();
-
-	/**
-	 * @var int in seconds
-	 */
-	private $rescanDelay = 10;
-
-	public function __construct($parameters) {
-		parent::__construct($parameters);
-		$this->parseParams($parameters);
-	}
-
-	/**
-	 * @param string $path
-	 * @return string correctly encoded path
-	 */
-	private function normalizePath($path) {
-		$path = trim($path, '/');
-
-		if (!$path) {
-			$path = '.';
-		}
-
-		return $path;
-	}
-
-	private function isRoot($path) {
-		return $path === '.';
-	}
-
-	private function cleanKey($path) {
-		if ($this->isRoot($path)) {
-			return '/';
-		}
-		return $path;
-	}
-
-	/**
-	 * Updates old storage ids (v0.2.1 and older) that are based on key and secret to new ones based on the bucket name.
-	 * TODO Do this in an update.php. requires iterating over all users and loading the mount.json from their home
-	 *
-	 * @param array $params
-	 */
-	public function updateLegacyId (array $params) {
-		$oldId = 'amazon::' . $params['key'] . md5($params['secret']);
-
-		// find by old id or bucket
-		$stmt = \OC::$server->getDatabaseConnection()->prepare(
-			'SELECT `numeric_id`, `id` FROM `*PREFIX*storages` WHERE `id` IN (?, ?)'
-		);
-		$stmt->execute(array($oldId, $this->id));
-		while ($row = $stmt->fetch()) {
-			$storages[$row['id']] = $row['numeric_id'];
-		}
-
-		if (isset($storages[$this->id]) && isset($storages[$oldId])) {
-			// if both ids exist, delete the old storage and corresponding filecache entries
-			\OC\Files\Cache\Storage::remove($oldId);
-		} else if (isset($storages[$oldId])) {
-			// if only the old id exists do an update
-			$stmt = \OC::$server->getDatabaseConnection()->prepare(
-				'UPDATE `*PREFIX*storages` SET `id` = ? WHERE `id` = ?'
-			);
-			$stmt->execute(array($this->id, $oldId));
-		}
-		// only the bucket based id may exist, do nothing
-	}
-
-	/**
-	 * Remove a file or folder
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	protected function remove($path) {
-		// remember fileType to reduce http calls
-		$fileType = $this->filetype($path);
-		if ($fileType === 'dir') {
-			return $this->rmdir($path);
-		} else if ($fileType === 'file') {
-			return $this->unlink($path);
-		} else {
-			return false;
-		}
-	}
-
-	public function mkdir($path) {
-		$path = $this->normalizePath($path);
-
-		if ($this->is_dir($path)) {
-			return false;
-		}
-
-		try {
-			$this->getConnection()->putObject(array(
-				'Bucket' => $this->bucket,
-				'Key' => $path . '/',
-				'Body' => '',
-				'ContentType' => 'httpd/unix-directory'
-			));
-			$this->testTimeout();
-		} catch (S3Exception $e) {
-			\OCP\Util::logException('files_external', $e);
-			return false;
-		}
-
-		return true;
-	}
-
-	public function file_exists($path) {
-		return $this->filetype($path) !== false;
-	}
-
-
-	public function rmdir($path) {
-		$path = $this->normalizePath($path);
-
-		if ($this->isRoot($path)) {
-			return $this->clearBucket();
-		}
-
-		if (!$this->file_exists($path)) {
-			return false;
-		}
-
-		return $this->batchDelete($path);
-	}
-
-	protected function clearBucket() {
-		try {
-			$this->getConnection()->clearBucket($this->bucket);
-			return true;
-			// clearBucket() is not working with Ceph, so if it fails we try the slower approach
-		} catch (\Exception $e) {
-			return $this->batchDelete();
-		}
-		return false;
-	}
-
-	private function batchDelete ($path = null) {
-		$params = array(
-			'Bucket' => $this->bucket
-		);
-		if ($path !== null) {
-			$params['Prefix'] = $path . '/';
-		}
-		try {
-			// Since there are no real directories on S3, we need
-			// to delete all objects prefixed with the path.
-			do {
-				// instead of the iterator, manually loop over the list ...
-				$objects = $this->getConnection()->listObjects($params);
-				// ... so we can delete the files in batches
-				$this->getConnection()->deleteObjects(array(
-					'Bucket' => $this->bucket,
-					'Objects' => $objects['Contents']
-				));
-				$this->testTimeout();
-				// we reached the end when the list is no longer truncated
-			} while ($objects['IsTruncated']);
-		} catch (S3Exception $e) {
-			\OCP\Util::logException('files_external', $e);
-			return false;
-		}
-		return true;
-	}
-
-	public function opendir($path) {
-		$path = $this->normalizePath($path);
-
-		if ($this->isRoot($path)) {
-			$path = '';
-		} else {
-			$path .= '/';
-		}
-
-		try {
-			$files = array();
-			$result = $this->getConnection()->getIterator('ListObjects', array(
-				'Bucket' => $this->bucket,
-				'Delimiter' => '/',
-				'Prefix' => $path
-			), array('return_prefixes' => true));
-
-			foreach ($result as $object) {
-				if (isset($object['Key']) && $object['Key'] === $path) {
-					// it's the directory itself, skip
-					continue;
-				}
-				$file = basename(
-					isset($object['Key']) ? $object['Key'] : $object['Prefix']
-				);
-				$files[] = $file;
-			}
-
-			return IteratorDirectory::wrap($files);
-		} catch (S3Exception $e) {
-			\OCP\Util::logException('files_external', $e);
-			return false;
-		}
-	}
-
-	public function stat($path) {
-		$path = $this->normalizePath($path);
-
-		try {
-			$stat = array();
-			if ($this->is_dir($path)) {
-				//folders don't really exist
-				$stat['size'] = -1; //unknown
-				$stat['mtime'] = time() - $this->rescanDelay * 1000;
-			} else {
-				$result = $this->getConnection()->headObject(array(
-					'Bucket' => $this->bucket,
-					'Key' => $path
-				));
-
-				$stat['size'] = $result['ContentLength'] ? $result['ContentLength'] : 0;
-				if ($result['Metadata']['lastmodified']) {
-					$stat['mtime'] = strtotime($result['Metadata']['lastmodified']);
-				} else {
-					$stat['mtime'] = strtotime($result['LastModified']);
-				}
-			}
-			$stat['atime'] = time();
-
-			return $stat;
-		} catch(S3Exception $e) {
-			\OCP\Util::logException('files_external', $e);
-			return false;
-		}
-	}
-
-	public function filetype($path) {
-		$path = $this->normalizePath($path);
-
-		if ($this->isRoot($path)) {
-			return 'dir';
-		}
-
-		try {
-			if ($this->getConnection()->doesObjectExist($this->bucket, $path)) {
-				return 'file';
-			}
-			if ($this->getConnection()->doesObjectExist($this->bucket, $path.'/')) {
-				return 'dir';
-			}
-		} catch (S3Exception $e) {
-			\OCP\Util::logException('files_external', $e);
-			return false;
-		}
-
-		return false;
-	}
-
-	public function unlink($path) {
-		$path = $this->normalizePath($path);
-
-		if ($this->is_dir($path)) {
-			return $this->rmdir($path);
-		}
-
-		try {
-			$this->getConnection()->deleteObject(array(
-				'Bucket' => $this->bucket,
-				'Key' => $path
-			));
-			$this->testTimeout();
-		} catch (S3Exception $e) {
-			\OCP\Util::logException('files_external', $e);
-			return false;
-		}
-
-		return true;
-	}
-
-	public function fopen($path, $mode) {
-		$path = $this->normalizePath($path);
-
-		switch ($mode) {
-			case 'r':
-			case 'rb':
-				$tmpFile = \OCP\Files::tmpFile();
-				self::$tmpFiles[$tmpFile] = $path;
-
-				try {
-					$this->getConnection()->getObject(array(
-						'Bucket' => $this->bucket,
-						'Key' => $path,
-						'SaveAs' => $tmpFile
-					));
-				} catch (S3Exception $e) {
-					\OCP\Util::logException('files_external', $e);
-					return false;
-				}
-
-				return fopen($tmpFile, 'r');
-			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, $path);
-				});
-		}
-		return false;
-	}
-
-	public function touch($path, $mtime = null) {
-		$path = $this->normalizePath($path);
-
-		$metadata = array();
-		if (is_null($mtime)) {
-			$mtime = time();
-		}
-		$metadata = [
-			'lastmodified' => gmdate(\Aws\Common\Enum\DateFormat::RFC1123, $mtime)
-		];
-
-		$fileType = $this->filetype($path);
-		try {
-			if ($fileType !== false) {
-				if ($fileType === 'dir' && ! $this->isRoot($path)) {
-					$path .= '/';
-				}
-				$this->getConnection()->copyObject([
-					'Bucket' => $this->bucket,
-					'Key' => $this->cleanKey($path),
-					'Metadata' => $metadata,
-					'CopySource' => $this->bucket . '/' . $path,
-					'MetadataDirective' => 'REPLACE',
-				]);
-				$this->testTimeout();
-			} else {
-				$mimeType = \OC::$server->getMimeTypeDetector()->detectPath($path);
-				$this->getConnection()->putObject([
-					'Bucket' => $this->bucket,
-					'Key' => $this->cleanKey($path),
-					'Metadata' => $metadata,
-					'Body' => '',
-					'ContentType' => $mimeType,
-					'MetadataDirective' => 'REPLACE',
-				]);
-				$this->testTimeout();
-			}
-		} catch (S3Exception $e) {
-			\OCP\Util::logException('files_external', $e);
-			return false;
-		}
-
-		return true;
-	}
-
-	public function copy($path1, $path2) {
-		$path1 = $this->normalizePath($path1);
-		$path2 = $this->normalizePath($path2);
-
-		if ($this->is_file($path1)) {
-			try {
-				$this->getConnection()->copyObject(array(
-					'Bucket' => $this->bucket,
-					'Key' => $this->cleanKey($path2),
-					'CopySource' => S3Client::encodeKey($this->bucket . '/' . $path1)
-				));
-				$this->testTimeout();
-			} catch (S3Exception $e) {
-				\OCP\Util::logException('files_external', $e);
-				return false;
-			}
-		} else {
-			$this->remove($path2);
-
-			try {
-				$this->getConnection()->copyObject(array(
-					'Bucket' => $this->bucket,
-					'Key' => $path2 . '/',
-					'CopySource' => S3Client::encodeKey($this->bucket . '/' . $path1 . '/')
-				));
-				$this->testTimeout();
-			} catch (S3Exception $e) {
-				\OCP\Util::logException('files_external', $e);
-				return false;
-			}
-
-			$dh = $this->opendir($path1);
-			if (is_resource($dh)) {
-				while (($file = readdir($dh)) !== false) {
-					if (\OC\Files\Filesystem::isIgnoredDir($file)) {
-						continue;
-					}
-
-					$source = $path1 . '/' . $file;
-					$target = $path2 . '/' . $file;
-					$this->copy($source, $target);
-				}
-			}
-		}
-
-		return true;
-	}
-
-	public function rename($path1, $path2) {
-		$path1 = $this->normalizePath($path1);
-		$path2 = $this->normalizePath($path2);
-
-		if ($this->is_file($path1)) {
-
-			if ($this->copy($path1, $path2) === false) {
-				return false;
-			}
-
-			if ($this->unlink($path1) === false) {
-				$this->unlink($path2);
-				return false;
-			}
-		} else {
-
-			if ($this->copy($path1, $path2) === false) {
-				return false;
-			}
-
-			if ($this->rmdir($path1) === false) {
-				$this->rmdir($path2);
-				return false;
-			}
-		}
-
-		return true;
-	}
-
-	public function test() {
-		$test = $this->getConnection()->getBucketAcl(array(
-			'Bucket' => $this->bucket,
-		));
-		if (isset($test) && !is_null($test->getPath('Owner/ID'))) {
-			return true;
-		}
-		return false;
-	}
-
-	public function getId() {
-		return $this->id;
-	}
-
-	public function writeBack($tmpFile, $path) {
-		try {
-			$this->getConnection()->putObject(array(
-				'Bucket' => $this->bucket,
-				'Key' => $this->cleanKey($path),
-				'SourceFile' => $tmpFile,
-				'ContentType' => \OC::$server->getMimeTypeDetector()->detect($tmpFile),
-				'ContentLength' => filesize($tmpFile)
-			));
-			$this->testTimeout();
-
-			unlink($tmpFile);
-		} catch (S3Exception $e) {
-			\OCP\Util::logException('files_external', $e);
-			return false;
-		}
-	}
-
-	/**
-	 * check if curl is installed
-	 */
-	public static function checkDependencies() {
-		return true;
-	}
+    use S3ConnectionTrait;
+
+    /**
+     * @var array
+     */
+    private static $tmpFiles = array();
+
+    /**
+     * @var int in seconds
+     */
+    private $rescanDelay = 10;
+
+    public function __construct($parameters) {
+        parent::__construct($parameters);
+        $this->parseParams($parameters);
+    }
+
+    /**
+     * @param string $path
+     * @return string correctly encoded path
+     */
+    private function normalizePath($path) {
+        $path = trim($path, '/');
+
+        if (!$path) {
+            $path = '.';
+        }
+
+        return $path;
+    }
+
+    private function isRoot($path) {
+        return $path === '.';
+    }
+
+    private function cleanKey($path) {
+        if ($this->isRoot($path)) {
+            return '/';
+        }
+        return $path;
+    }
+
+    /**
+     * Updates old storage ids (v0.2.1 and older) that are based on key and secret to new ones based on the bucket name.
+     * TODO Do this in an update.php. requires iterating over all users and loading the mount.json from their home
+     *
+     * @param array $params
+     */
+    public function updateLegacyId (array $params) {
+        $oldId = 'amazon::' . $params['key'] . md5($params['secret']);
+
+        // find by old id or bucket
+        $stmt = \OC::$server->getDatabaseConnection()->prepare(
+            'SELECT `numeric_id`, `id` FROM `*PREFIX*storages` WHERE `id` IN (?, ?)'
+        );
+        $stmt->execute(array($oldId, $this->id));
+        while ($row = $stmt->fetch()) {
+            $storages[$row['id']] = $row['numeric_id'];
+        }
+
+        if (isset($storages[$this->id]) && isset($storages[$oldId])) {
+            // if both ids exist, delete the old storage and corresponding filecache entries
+            \OC\Files\Cache\Storage::remove($oldId);
+        } else if (isset($storages[$oldId])) {
+            // if only the old id exists do an update
+            $stmt = \OC::$server->getDatabaseConnection()->prepare(
+                'UPDATE `*PREFIX*storages` SET `id` = ? WHERE `id` = ?'
+            );
+            $stmt->execute(array($this->id, $oldId));
+        }
+        // only the bucket based id may exist, do nothing
+    }
+
+    /**
+     * Remove a file or folder
+     *
+     * @param string $path
+     * @return bool
+     */
+    protected function remove($path) {
+        // remember fileType to reduce http calls
+        $fileType = $this->filetype($path);
+        if ($fileType === 'dir') {
+            return $this->rmdir($path);
+        } else if ($fileType === 'file') {
+            return $this->unlink($path);
+        } else {
+            return false;
+        }
+    }
+
+    public function mkdir($path) {
+        $path = $this->normalizePath($path);
+
+        if ($this->is_dir($path)) {
+            return false;
+        }
+
+        try {
+            $this->getConnection()->putObject(array(
+                'Bucket' => $this->bucket,
+                'Key' => $path . '/',
+                'Body' => '',
+                'ContentType' => 'httpd/unix-directory'
+            ));
+            $this->testTimeout();
+        } catch (S3Exception $e) {
+            \OCP\Util::logException('files_external', $e);
+            return false;
+        }
+
+        return true;
+    }
+
+    public function file_exists($path) {
+        return $this->filetype($path) !== false;
+    }
+
+
+    public function rmdir($path) {
+        $path = $this->normalizePath($path);
+
+        if ($this->isRoot($path)) {
+            return $this->clearBucket();
+        }
+
+        if (!$this->file_exists($path)) {
+            return false;
+        }
+
+        return $this->batchDelete($path);
+    }
+
+    protected function clearBucket() {
+        try {
+            $this->getConnection()->clearBucket($this->bucket);
+            return true;
+            // clearBucket() is not working with Ceph, so if it fails we try the slower approach
+        } catch (\Exception $e) {
+            return $this->batchDelete();
+        }
+        return false;
+    }
+
+    private function batchDelete ($path = null) {
+        $params = array(
+            'Bucket' => $this->bucket
+        );
+        if ($path !== null) {
+            $params['Prefix'] = $path . '/';
+        }
+        try {
+            // Since there are no real directories on S3, we need
+            // to delete all objects prefixed with the path.
+            do {
+                // instead of the iterator, manually loop over the list ...
+                $objects = $this->getConnection()->listObjects($params);
+                // ... so we can delete the files in batches
+                $this->getConnection()->deleteObjects(array(
+                    'Bucket' => $this->bucket,
+                    'Objects' => $objects['Contents']
+                ));
+                $this->testTimeout();
+                // we reached the end when the list is no longer truncated
+            } while ($objects['IsTruncated']);
+        } catch (S3Exception $e) {
+            \OCP\Util::logException('files_external', $e);
+            return false;
+        }
+        return true;
+    }
+
+    public function opendir($path) {
+        $path = $this->normalizePath($path);
+
+        if ($this->isRoot($path)) {
+            $path = '';
+        } else {
+            $path .= '/';
+        }
+
+        try {
+            $files = array();
+            $result = $this->getConnection()->getIterator('ListObjects', array(
+                'Bucket' => $this->bucket,
+                'Delimiter' => '/',
+                'Prefix' => $path
+            ), array('return_prefixes' => true));
+
+            foreach ($result as $object) {
+                if (isset($object['Key']) && $object['Key'] === $path) {
+                    // it's the directory itself, skip
+                    continue;
+                }
+                $file = basename(
+                    isset($object['Key']) ? $object['Key'] : $object['Prefix']
+                );
+                $files[] = $file;
+            }
+
+            return IteratorDirectory::wrap($files);
+        } catch (S3Exception $e) {
+            \OCP\Util::logException('files_external', $e);
+            return false;
+        }
+    }
+
+    public function stat($path) {
+        $path = $this->normalizePath($path);
+
+        try {
+            $stat = array();
+            if ($this->is_dir($path)) {
+                //folders don't really exist
+                $stat['size'] = -1; //unknown
+                $stat['mtime'] = time() - $this->rescanDelay * 1000;
+            } else {
+                $result = $this->getConnection()->headObject(array(
+                    'Bucket' => $this->bucket,
+                    'Key' => $path
+                ));
+
+                $stat['size'] = $result['ContentLength'] ? $result['ContentLength'] : 0;
+                if ($result['Metadata']['lastmodified']) {
+                    $stat['mtime'] = strtotime($result['Metadata']['lastmodified']);
+                } else {
+                    $stat['mtime'] = strtotime($result['LastModified']);
+                }
+            }
+            $stat['atime'] = time();
+
+            return $stat;
+        } catch(S3Exception $e) {
+            \OCP\Util::logException('files_external', $e);
+            return false;
+        }
+    }
+
+    public function filetype($path) {
+        $path = $this->normalizePath($path);
+
+        if ($this->isRoot($path)) {
+            return 'dir';
+        }
+
+        try {
+            if ($this->getConnection()->doesObjectExist($this->bucket, $path)) {
+                return 'file';
+            }
+            if ($this->getConnection()->doesObjectExist($this->bucket, $path.'/')) {
+                return 'dir';
+            }
+        } catch (S3Exception $e) {
+            \OCP\Util::logException('files_external', $e);
+            return false;
+        }
+
+        return false;
+    }
+
+    public function unlink($path) {
+        $path = $this->normalizePath($path);
+
+        if ($this->is_dir($path)) {
+            return $this->rmdir($path);
+        }
+
+        try {
+            $this->getConnection()->deleteObject(array(
+                'Bucket' => $this->bucket,
+                'Key' => $path
+            ));
+            $this->testTimeout();
+        } catch (S3Exception $e) {
+            \OCP\Util::logException('files_external', $e);
+            return false;
+        }
+
+        return true;
+    }
+
+    public function fopen($path, $mode) {
+        $path = $this->normalizePath($path);
+
+        switch ($mode) {
+            case 'r':
+            case 'rb':
+                $tmpFile = \OCP\Files::tmpFile();
+                self::$tmpFiles[$tmpFile] = $path;
+
+                try {
+                    $this->getConnection()->getObject(array(
+                        'Bucket' => $this->bucket,
+                        'Key' => $path,
+                        'SaveAs' => $tmpFile
+                    ));
+                } catch (S3Exception $e) {
+                    \OCP\Util::logException('files_external', $e);
+                    return false;
+                }
+
+                return fopen($tmpFile, 'r');
+            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, $path);
+                });
+        }
+        return false;
+    }
+
+    public function touch($path, $mtime = null) {
+        $path = $this->normalizePath($path);
+
+        $metadata = array();
+        if (is_null($mtime)) {
+            $mtime = time();
+        }
+        $metadata = [
+            'lastmodified' => gmdate(\Aws\Common\Enum\DateFormat::RFC1123, $mtime)
+        ];
+
+        $fileType = $this->filetype($path);
+        try {
+            if ($fileType !== false) {
+                if ($fileType === 'dir' && ! $this->isRoot($path)) {
+                    $path .= '/';
+                }
+                $this->getConnection()->copyObject([
+                    'Bucket' => $this->bucket,
+                    'Key' => $this->cleanKey($path),
+                    'Metadata' => $metadata,
+                    'CopySource' => $this->bucket . '/' . $path,
+                    'MetadataDirective' => 'REPLACE',
+                ]);
+                $this->testTimeout();
+            } else {
+                $mimeType = \OC::$server->getMimeTypeDetector()->detectPath($path);
+                $this->getConnection()->putObject([
+                    'Bucket' => $this->bucket,
+                    'Key' => $this->cleanKey($path),
+                    'Metadata' => $metadata,
+                    'Body' => '',
+                    'ContentType' => $mimeType,
+                    'MetadataDirective' => 'REPLACE',
+                ]);
+                $this->testTimeout();
+            }
+        } catch (S3Exception $e) {
+            \OCP\Util::logException('files_external', $e);
+            return false;
+        }
+
+        return true;
+    }
+
+    public function copy($path1, $path2) {
+        $path1 = $this->normalizePath($path1);
+        $path2 = $this->normalizePath($path2);
+
+        if ($this->is_file($path1)) {
+            try {
+                $this->getConnection()->copyObject(array(
+                    'Bucket' => $this->bucket,
+                    'Key' => $this->cleanKey($path2),
+                    'CopySource' => S3Client::encodeKey($this->bucket . '/' . $path1)
+                ));
+                $this->testTimeout();
+            } catch (S3Exception $e) {
+                \OCP\Util::logException('files_external', $e);
+                return false;
+            }
+        } else {
+            $this->remove($path2);
+
+            try {
+                $this->getConnection()->copyObject(array(
+                    'Bucket' => $this->bucket,
+                    'Key' => $path2 . '/',
+                    'CopySource' => S3Client::encodeKey($this->bucket . '/' . $path1 . '/')
+                ));
+                $this->testTimeout();
+            } catch (S3Exception $e) {
+                \OCP\Util::logException('files_external', $e);
+                return false;
+            }
+
+            $dh = $this->opendir($path1);
+            if (is_resource($dh)) {
+                while (($file = readdir($dh)) !== false) {
+                    if (\OC\Files\Filesystem::isIgnoredDir($file)) {
+                        continue;
+                    }
+
+                    $source = $path1 . '/' . $file;
+                    $target = $path2 . '/' . $file;
+                    $this->copy($source, $target);
+                }
+            }
+        }
+
+        return true;
+    }
+
+    public function rename($path1, $path2) {
+        $path1 = $this->normalizePath($path1);
+        $path2 = $this->normalizePath($path2);
+
+        if ($this->is_file($path1)) {
+
+            if ($this->copy($path1, $path2) === false) {
+                return false;
+            }
+
+            if ($this->unlink($path1) === false) {
+                $this->unlink($path2);
+                return false;
+            }
+        } else {
+
+            if ($this->copy($path1, $path2) === false) {
+                return false;
+            }
+
+            if ($this->rmdir($path1) === false) {
+                $this->rmdir($path2);
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    public function test() {
+        $test = $this->getConnection()->getBucketAcl(array(
+            'Bucket' => $this->bucket,
+        ));
+        if (isset($test) && !is_null($test->getPath('Owner/ID'))) {
+            return true;
+        }
+        return false;
+    }
+
+    public function getId() {
+        return $this->id;
+    }
+
+    public function writeBack($tmpFile, $path) {
+        try {
+            $this->getConnection()->putObject(array(
+                'Bucket' => $this->bucket,
+                'Key' => $this->cleanKey($path),
+                'SourceFile' => $tmpFile,
+                'ContentType' => \OC::$server->getMimeTypeDetector()->detect($tmpFile),
+                'ContentLength' => filesize($tmpFile)
+            ));
+            $this->testTimeout();
+
+            unlink($tmpFile);
+        } catch (S3Exception $e) {
+            \OCP\Util::logException('files_external', $e);
+            return false;
+        }
+    }
+
+    /**
+     * check if curl is installed
+     */
+    public static function checkDependencies() {
+        return true;
+    }
 
 }

Spacing +15 added lines, -15 removed lines

@@ -36,8 +36,8 @@ 
 
 namespace OCA\Files_External\Lib\Storage;
 
-set_include_path(get_include_path() . PATH_SEPARATOR .
-	\OC_App::getAppPath('files_external') . '/3rdparty/aws-sdk-php');
+set_include_path(get_include_path().PATH_SEPARATOR.
+	\OC_App::getAppPath('files_external').'/3rdparty/aws-sdk-php');
 require_once 'aws-autoloader.php';
 
 use Aws\S3\S3Client;
@@ -95,8 +95,8 @@ 
 	 *
 	 * @param array $params
 	 */
-	public function updateLegacyId (array $params) {
-		$oldId = 'amazon::' . $params['key'] . md5($params['secret']);
+	public function updateLegacyId(array $params) {
+		$oldId = 'amazon::'.$params['key'].md5($params['secret']);
 
 		// find by old id or bucket
 		$stmt = \OC::$server->getDatabaseConnection()->prepare(
@@ -148,7 +148,7 @@ 
 		try {
 			$this->getConnection()->putObject(array(
 				'Bucket' => $this->bucket,
-				'Key' => $path . '/',
+				'Key' => $path.'/',
 				'Body' => '',
 				'ContentType' => 'httpd/unix-directory'
 			));
@@ -191,12 +191,12 @@ 
 		return false;
 	}
 
-	private function batchDelete ($path = null) {
+	private function batchDelete($path = null) {
 		$params = array(
 			'Bucket' => $this->bucket
 		);
 		if ($path !== null) {
-			$params['Prefix'] = $path . '/';
+			$params['Prefix'] = $path.'/';
 		}
 		try {
 			// Since there are no real directories on S3, we need
@@ -279,7 +279,7 @@ 
 			$stat['atime'] = time();
 
 			return $stat;
-		} catch(S3Exception $e) {
+		} catch (S3Exception $e) {
 			\OCP\Util::logException('files_external', $e);
 			return false;
 		}
@@ -394,14 +394,14 @@ 
 		$fileType = $this->filetype($path);
 		try {
 			if ($fileType !== false) {
-				if ($fileType === 'dir' && ! $this->isRoot($path)) {
+				if ($fileType === 'dir' && !$this->isRoot($path)) {
 					$path .= '/';
 				}
 				$this->getConnection()->copyObject([
 					'Bucket' => $this->bucket,
 					'Key' => $this->cleanKey($path),
 					'Metadata' => $metadata,
-					'CopySource' => $this->bucket . '/' . $path,
+					'CopySource' => $this->bucket.'/'.$path,
 					'MetadataDirective' => 'REPLACE',
 				]);
 				$this->testTimeout();
@@ -434,7 +434,7 @@ 
 				$this->getConnection()->copyObject(array(
 					'Bucket' => $this->bucket,
 					'Key' => $this->cleanKey($path2),
-					'CopySource' => S3Client::encodeKey($this->bucket . '/' . $path1)
+					'CopySource' => S3Client::encodeKey($this->bucket.'/'.$path1)
 				));
 				$this->testTimeout();
 			} catch (S3Exception $e) {
@@ -447,8 +447,8 @@ 
 			try {
 				$this->getConnection()->copyObject(array(
 					'Bucket' => $this->bucket,
-					'Key' => $path2 . '/',
-					'CopySource' => S3Client::encodeKey($this->bucket . '/' . $path1 . '/')
+					'Key' => $path2.'/',
+					'CopySource' => S3Client::encodeKey($this->bucket.'/'.$path1.'/')
 				));
 				$this->testTimeout();
 			} catch (S3Exception $e) {
@@ -463,8 +463,8 @@ 
 						continue;
 					}
 
-					$source = $path1 . '/' . $file;
-					$target = $path2 . '/' . $file;
+					$source = $path1.'/'.$file;
+					$target = $path2.'/'.$file;
 					$this->copy($source, $target);
 				}
 			}

apps/files_external/lib/Lib/Storage/Dropbox.php

Doc Comments +6 added lines

@@ -76,6 +76,9 @@ 
 		return false;
 	}
 
+	/**
+	 * @param string $path
+	 */
 	private function setMetaData($path, $metaData) {
 		$this->metaData[ltrim($path, '/')] = $metaData;
 	}
@@ -316,6 +319,9 @@ 
 		return false;
 	}
 
+	/**
+	 * @param string $path
+	 */
 	public function writeBack($tmpFile, $path) {
 		$handle = fopen($tmpFile, 'r');
 		try {

Indentation +290 added lines, -290 removed lines

@@ -40,317 +40,317 @@
 
 class Dropbox extends \OC\Files\Storage\Common {
 
-	private $dropbox;
-	private $root;
-	private $id;
-	private $metaData = array();
-	private $oauth;
+    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');
-		}
-	}
+    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;
-	}
+    /**
+     * @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, '/')] = $metaData;
-	}
+    private function setMetaData($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 = '';
-					}
+    /**
+     * 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;
-				}
-			}
-		}
-	}
+                    $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 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', $exception->getMessage(), \OCP\Util::ERROR);
-			return false;
-		}
-	}
+    public function mkdir($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 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($files);
-		}
-		return false;
-	}
+    public function opendir($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 $stat;
-		}
-		return false;
-	}
+    public function stat($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 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($path)) {
-			return true;
-		}
-		return false;
-	}
+    public function file_exists($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', $exception->getMessage(), \OCP\Util::ERROR);
-			return false;
-		}
-	}
+    public function unlink($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', $exception->getMessage(), \OCP\Util::ERROR);
-			return false;
-		}
-	}
+    public function rename($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', $exception->getMessage(), \OCP\Util::ERROR);
-			return false;
-		}
-	}
+    public function copy($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');
+    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;
-						}
-					}
+                    $client = \OC::$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;
-	}
+                    $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', $exception->getMessage(), \OCP\Util::ERROR);
-		}
-	}
+    public function writeBack($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', $exception->getMessage(), \OCP\Util::ERROR);
-			return false;
-		}
-	}
+    public function free_space($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;
-	}
+    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;
-	}
+    /**
+     * check if curl is installed
+     */
+    public static function checkDependencies() {
+        return true;
+    }
 
 }

Spacing +6 added lines, -6 removed lines

@@ -36,7 +36,7 @@ 
 use Icewind\Streams\RetryWrapper;
 use OCP\Files\StorageNotAvailableException;
 
-require_once __DIR__ . '/../../../3rdparty/Dropbox/autoload.php';
+require_once __DIR__.'/../../../3rdparty/Dropbox/autoload.php';
 
 class Dropbox extends \OC\Files\Storage\Common {
 
@@ -54,7 +54,7 @@ 
 			&& isset($params['token_secret'])
 		) {
 			$this->root = isset($params['root']) ? $params['root'] : '';
-			$this->id = 'dropbox::'.$params['app_key'] . $params['token']. '/' . $this->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'], $params['token_secret']);
 			// note: Dropbox_API connection is lazy
@@ -89,7 +89,7 @@ 
 	 */
 	private function getDropBoxMetaData($path, $list = false) {
 		$path = ltrim($this->root.$path, '/');
-		if ( ! $list && isset($this->metaData[$path])) {
+		if (!$list && isset($this->metaData[$path])) {
 			return $this->metaData[$path];
 		} else {
 			if ($list) {
@@ -144,7 +144,7 @@ 
 		}
 	}
 
-	public function getId(){
+	public function getId() {
 		return $this->id;
 	}
 
@@ -259,7 +259,7 @@ 
 				try {
 					// slashes need to stay
 					$encodedPath = str_replace('%2F', '/', rawurlencode(trim($path, '/')));
-					$downloadUrl = 'https://api-content.dropbox.com/1/files/auto/' . $encodedPath;
+					$downloadUrl = 'https://api-content.dropbox.com/1/files/auto/'.$encodedPath;
 					$headers = $this->oauth->getOAuthHeader($downloadUrl, [], 'GET');
 
 					$client = \OC::$server->getHTTPClientService()->newClient();
@@ -309,7 +309,7 @@ 
 					file_put_contents($tmpFile, $source);
 				}
 			$handle = fopen($tmpFile, $mode);
-			return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
+			return CallbackWrapper::wrap($handle, null, null, function() use ($path, $tmpFile) {
 				$this->writeBack($tmpFile, $path);
 			});
 		}

apps/files_external/lib/Lib/Storage/Google.php

Doc Comments +4 added lines, -1 removed lines

@@ -216,7 +216,7 @@ 
 	 *
 	 * @param \Google_Service_Drive_DriveFile
 	 *
-	 * @return true if the file is a Google Doc file, false otherwise
+	 * @return boolean if the file is a Google Doc file, false otherwise
 	 */
 	private function isGoogleDocFile($file) {
 		return $this->getGoogleDocExtension($file->getMimeType()) !== '';
@@ -505,6 +505,9 @@ 
 		}
 	}
 
+	/**
+	 * @param string $path
+	 */
 	public function writeBack($tmpFile, $path) {
 		$parentFolder = $this->getDriveFile(dirname($path));
 		if ($parentFolder) {

Indentation +675 added lines, -675 removed lines

@@ -41,684 +41,684 @@
 use Icewind\Streams\RetryWrapper;
 
 set_include_path(get_include_path().PATH_SEPARATOR.
-	\OC_App::getAppPath('files_external').'/3rdparty/google-api-php-client/src');
+    \OC_App::getAppPath('files_external').'/3rdparty/google-api-php-client/src');
 require_once 'Google/autoload.php';
 
 class Google extends \OC\Files\Storage\Common {
 
-	private $client;
-	private $id;
-	private $service;
-	private $driveFiles;
-
-	// Google Doc mimetypes
-	const FOLDER = 'application/vnd.google-apps.folder';
-	const DOCUMENT = 'application/vnd.google-apps.document';
-	const SPREADSHEET = 'application/vnd.google-apps.spreadsheet';
-	const DRAWING = 'application/vnd.google-apps.drawing';
-	const PRESENTATION = 'application/vnd.google-apps.presentation';
-	const MAP = 'application/vnd.google-apps.map';
-
-	public function __construct($params) {
-		if (isset($params['configured']) && $params['configured'] === 'true'
-			&& isset($params['client_id']) && isset($params['client_secret'])
-			&& isset($params['token'])
-		) {
-			$this->client = new \Google_Client();
-			$this->client->setClientId($params['client_id']);
-			$this->client->setClientSecret($params['client_secret']);
-			$this->client->setScopes(array('https://www.googleapis.com/auth/drive'));
-			$this->client->setAccessToken($params['token']);
-			// if curl isn't available we're likely to run into
-			// https://github.com/google/google-api-php-client/issues/59
-			// - disable gzip to avoid it.
-			if (!function_exists('curl_version') || !function_exists('curl_exec')) {
-				$this->client->setClassConfig("Google_Http_Request", "disable_gzip", true);
-			}
-			// note: API connection is lazy
-			$this->service = new \Google_Service_Drive($this->client);
-			$token = json_decode($params['token'], true);
-			$this->id = 'google::'.substr($params['client_id'], 0, 30).$token['created'];
-		} else {
-			throw new \Exception('Creating Google storage failed');
-		}
-	}
-
-	public function getId() {
-		return $this->id;
-	}
-
-	/**
-	 * Get the Google_Service_Drive_DriveFile object for the specified path.
-	 * Returns false on failure.
-	 * @param string $path
-	 * @return \Google_Service_Drive_DriveFile|false
-	 */
-	private function getDriveFile($path) {
-		// Remove leading and trailing slashes
-		$path = trim($path, '/');
-		if ($path === '.') {
-			$path = '';
-		}
-		if (isset($this->driveFiles[$path])) {
-			return $this->driveFiles[$path];
-		} else if ($path === '') {
-			$root = $this->service->files->get('root');
-			$this->driveFiles[$path] = $root;
-			return $root;
-		} else {
-			// Google Drive SDK does not have methods for retrieving files by path
-			// Instead we must find the id of the parent folder of the file
-			$parentId = $this->getDriveFile('')->getId();
-			$folderNames = explode('/', $path);
-			$path = '';
-			// Loop through each folder of this path to get to the file
-			foreach ($folderNames as $name) {
-				// Reconstruct path from beginning
-				if ($path === '') {
-					$path .= $name;
-				} else {
-					$path .= '/'.$name;
-				}
-				if (isset($this->driveFiles[$path])) {
-					$parentId = $this->driveFiles[$path]->getId();
-				} else {
-					$q = "title='" . str_replace("'","\\'", $name) . "' and '" . str_replace("'","\\'", $parentId) . "' in parents and trashed = false";
-					$result = $this->service->files->listFiles(array('q' => $q))->getItems();
-					if (!empty($result)) {
-						// Google Drive allows files with the same name, ownCloud doesn't
-						if (count($result) > 1) {
-							$this->onDuplicateFileDetected($path);
-							return false;
-						} else {
-							$file = current($result);
-							$this->driveFiles[$path] = $file;
-							$parentId = $file->getId();
-						}
-					} else {
-						// Google Docs have no extension in their title, so try without extension
-						$pos = strrpos($path, '.');
-						if ($pos !== false) {
-							$pathWithoutExt = substr($path, 0, $pos);
-							$file = $this->getDriveFile($pathWithoutExt);
-							if ($file && $this->isGoogleDocFile($file)) {
-								// Switch cached Google_Service_Drive_DriveFile to the correct index
-								unset($this->driveFiles[$pathWithoutExt]);
-								$this->driveFiles[$path] = $file;
-								$parentId = $file->getId();
-							} else {
-								return false;
-							}
-						} else {
-							return false;
-						}
-					}
-				}
-			}
-			return $this->driveFiles[$path];
-		}
-	}
-
-	/**
-	 * Set the Google_Service_Drive_DriveFile object in the cache
-	 * @param string $path
-	 * @param \Google_Service_Drive_DriveFile|false $file
-	 */
-	private function setDriveFile($path, $file) {
-		$path = trim($path, '/');
-		$this->driveFiles[$path] = $file;
-		if ($file === false) {
-			// Remove all children
-			$len = strlen($path);
-			foreach ($this->driveFiles as $key => $file) {
-				if (substr($key, 0, $len) === $path) {
-					unset($this->driveFiles[$key]);
-				}
-			}
-		}
-	}
-
-	/**
-	 * Write a log message to inform about duplicate file names
-	 * @param string $path
-	 */
-	private function onDuplicateFileDetected($path) {
-		$about = $this->service->about->get();
-		$user = $about->getName();
-		\OCP\Util::writeLog('files_external',
-			'Ignoring duplicate file name: '.$path.' on Google Drive for Google user: '.$user,
-			\OCP\Util::INFO
-		);
-	}
-
-	/**
-	 * Generate file extension for a Google Doc, choosing Open Document formats for download
-	 * @param string $mimetype
-	 * @return string
-	 */
-	private function getGoogleDocExtension($mimetype) {
-		if ($mimetype === self::DOCUMENT) {
-			return 'odt';
-		} else if ($mimetype === self::SPREADSHEET) {
-			return 'ods';
-		} else if ($mimetype === self::DRAWING) {
-			return 'jpg';
-		} else if ($mimetype === self::PRESENTATION) {
-			// Download as .odp is not available
-			return 'pdf';
-		} else {
-			return '';
-		}
-	}
-
-	/**
-	 * Returns whether the given drive file is a Google Doc file
-	 *
-	 * @param \Google_Service_Drive_DriveFile
-	 *
-	 * @return true if the file is a Google Doc file, false otherwise
-	 */
-	private function isGoogleDocFile($file) {
-		return $this->getGoogleDocExtension($file->getMimeType()) !== '';
-	}
-
-	public function mkdir($path) {
-		if (!$this->is_dir($path)) {
-			$parentFolder = $this->getDriveFile(dirname($path));
-			if ($parentFolder) {
-				$folder = new \Google_Service_Drive_DriveFile();
-				$folder->setTitle(basename($path));
-				$folder->setMimeType(self::FOLDER);
-				$parent = new \Google_Service_Drive_ParentReference();
-				$parent->setId($parentFolder->getId());
-				$folder->setParents(array($parent));
-				$result = $this->service->files->insert($folder);
-				if ($result) {
-					$this->setDriveFile($path, $result);
-				}
-				return (bool)$result;
-			}
-		}
-		return false;
-	}
-
-	public function rmdir($path) {
-		if (!$this->isDeletable($path)) {
-			return false;
-		}
-		if (trim($path, '/') === '') {
-			$dir = $this->opendir($path);
-			if(is_resource($dir)) {
-				while (($file = readdir($dir)) !== false) {
-					if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
-						if (!$this->unlink($path.'/'.$file)) {
-							return false;
-						}
-					}
-				}
-				closedir($dir);
-			}
-			$this->driveFiles = array();
-			return true;
-		} else {
-			return $this->unlink($path);
-		}
-	}
-
-	public function opendir($path) {
-		$folder = $this->getDriveFile($path);
-		if ($folder) {
-			$files = array();
-			$duplicates = array();
-			$pageToken = true;
-			while ($pageToken) {
-				$params = array();
-				if ($pageToken !== true) {
-					$params['pageToken'] = $pageToken;
-				}
-				$params['q'] = "'" . str_replace("'","\\'", $folder->getId()) . "' in parents and trashed = false";
-				$children = $this->service->files->listFiles($params);
-				foreach ($children->getItems() as $child) {
-					$name = $child->getTitle();
-					// Check if this is a Google Doc i.e. no extension in name
-					$extension = $child->getFileExtension();
-					if (empty($extension)) {
-						if ($child->getMimeType() === self::MAP) {
-							continue; // No method known to transfer map files, ignore it
-						} else if ($child->getMimeType() !== self::FOLDER) {
-							$name .= '.'.$this->getGoogleDocExtension($child->getMimeType());
-						}
-					}
-					if ($path === '') {
-						$filepath = $name;
-					} else {
-						$filepath = $path.'/'.$name;
-					}
-					// Google Drive allows files with the same name, ownCloud doesn't
-					// Prevent opendir() from returning any duplicate files
-					$key = array_search($name, $files);
-					if ($key !== false || isset($duplicates[$filepath])) {
-						if (!isset($duplicates[$filepath])) {
-							$duplicates[$filepath] = true;
-							$this->setDriveFile($filepath, false);
-							unset($files[$key]);
-							$this->onDuplicateFileDetected($filepath);
-						}
-					} else {
-						// Cache the Google_Service_Drive_DriveFile for future use
-						$this->setDriveFile($filepath, $child);
-						$files[] = $name;
-					}
-				}
-				$pageToken = $children->getNextPageToken();
-			}
-			return IteratorDirectory::wrap($files);
-		} else {
-			return false;
-		}
-	}
-
-	public function stat($path) {
-		$file = $this->getDriveFile($path);
-		if ($file) {
-			$stat = array();
-			if ($this->filetype($path) === 'dir') {
-				$stat['size'] = 0;
-			} else {
-				// Check if this is a Google Doc
-				if ($this->isGoogleDocFile($file)) {
-					// Return unknown file size
-					$stat['size'] = \OCP\Files\FileInfo::SPACE_UNKNOWN;
-				} else {
-					$stat['size'] = $file->getFileSize();
-				}
-			}
-			$stat['atime'] = strtotime($file->getLastViewedByMeDate());
-			$stat['mtime'] = strtotime($file->getModifiedDate());
-			$stat['ctime'] = strtotime($file->getCreatedDate());
-			return $stat;
-		} else {
-			return false;
-		}
-	}
-
-	public function filetype($path) {
-		if ($path === '') {
-			return 'dir';
-		} else {
-			$file = $this->getDriveFile($path);
-			if ($file) {
-				if ($file->getMimeType() === self::FOLDER) {
-					return 'dir';
-				} else {
-					return 'file';
-				}
-			} else {
-				return false;
-			}
-		}
-	}
-
-	public function isUpdatable($path) {
-		$file = $this->getDriveFile($path);
-		if ($file) {
-			return $file->getEditable();
-		} else {
-			return false;
-		}
-	}
-
-	public function file_exists($path) {
-		return (bool)$this->getDriveFile($path);
-	}
-
-	public function unlink($path) {
-		$file = $this->getDriveFile($path);
-		if ($file) {
-			$result = $this->service->files->trash($file->getId());
-			if ($result) {
-				$this->setDriveFile($path, false);
-			}
-			return (bool)$result;
-		} else {
-			return false;
-		}
-	}
-
-	public function rename($path1, $path2) {
-		$file = $this->getDriveFile($path1);
-		if ($file) {
-			$newFile = $this->getDriveFile($path2);
-			if (dirname($path1) === dirname($path2)) {
-				if ($newFile) {
-					// rename to the name of the target file, could be an office file without extension
-					$file->setTitle($newFile->getTitle());
-				} else {
-					$file->setTitle(basename(($path2)));
-				}
-			} else {
-				// Change file parent
-				$parentFolder2 = $this->getDriveFile(dirname($path2));
-				if ($parentFolder2) {
-					$parent = new \Google_Service_Drive_ParentReference();
-					$parent->setId($parentFolder2->getId());
-					$file->setParents(array($parent));
-				} else {
-					return false;
-				}
-			}
-			// We need to get the object for the existing file with the same
-			// name (if there is one) before we do the patch. If oldfile
-			// exists and is a directory we have to delete it before we
-			// do the rename too.
-			$oldfile = $this->getDriveFile($path2);
-			if ($oldfile && $this->is_dir($path2)) {
-				$this->rmdir($path2);
-				$oldfile = false;
-			}
-			$result = $this->service->files->patch($file->getId(), $file);
-			if ($result) {
-				$this->setDriveFile($path1, false);
-				$this->setDriveFile($path2, $result);
-				if ($oldfile && $newFile) {
-					// only delete if they have a different id (same id can happen for part files)
-					if ($newFile->getId() !== $oldfile->getId()) {
-						$this->service->files->delete($oldfile->getId());
-					}
-				}
-			}
-			return (bool)$result;
-		} else {
-			return false;
-		}
-	}
-
-	public function fopen($path, $mode) {
-		$pos = strrpos($path, '.');
-		if ($pos !== false) {
-			$ext = substr($path, $pos);
-		} else {
-			$ext = '';
-		}
-		switch ($mode) {
-			case 'r':
-			case 'rb':
-				$file = $this->getDriveFile($path);
-				if ($file) {
-					$exportLinks = $file->getExportLinks();
-					$mimetype = $this->getMimeType($path);
-					$downloadUrl = null;
-					if ($exportLinks && isset($exportLinks[$mimetype])) {
-						$downloadUrl = $exportLinks[$mimetype];
-					} else {
-						$downloadUrl = $file->getDownloadUrl();
-					}
-					if (isset($downloadUrl)) {
-						$request = new \Google_Http_Request($downloadUrl, 'GET', null, null);
-						$httpRequest = $this->client->getAuth()->sign($request);
-						// the library's service doesn't support streaming, so we use Guzzle instead
-						$client = \OC::$server->getHTTPClientService()->newClient();
-						try {
-							$response = $client->get($downloadUrl, [
-								'headers' => $httpRequest->getRequestHeaders(),
-								'stream' => true,
-								'verify' => realpath(__DIR__ . '/../../../3rdparty/google-api-php-client/src/Google/IO/cacerts.pem'),
-							]);
-						} 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);
-					}
-				}
-				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+':
-				$tmpFile = \OCP\Files::tmpFile($ext);
-				if ($this->file_exists($path)) {
-					$source = $this->fopen($path, 'rb');
-					file_put_contents($tmpFile, $source);
-				}
-				$handle = fopen($tmpFile, $mode);
-				return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
-					$this->writeBack($tmpFile, $path);
-				});
-		}
-	}
-
-	public function writeBack($tmpFile, $path) {
-		$parentFolder = $this->getDriveFile(dirname($path));
-		if ($parentFolder) {
-			$mimetype = \OC::$server->getMimeTypeDetector()->detect($tmpFile);
-			$params = array(
-				'mimeType' => $mimetype,
-				'uploadType' => 'media'
-			);
-			$result = false;
-
-			$chunkSizeBytes = 10 * 1024 * 1024;
-
-			$useChunking = false;
-			$size = filesize($tmpFile);
-			if ($size > $chunkSizeBytes) {
-				$useChunking = true;
-			} else {
-				$params['data'] = file_get_contents($tmpFile);
-			}
-
-			if ($this->file_exists($path)) {
-				$file = $this->getDriveFile($path);
-				$this->client->setDefer($useChunking);
-				$request = $this->service->files->update($file->getId(), $file, $params);
-			} else {
-				$file = new \Google_Service_Drive_DriveFile();
-				$file->setTitle(basename($path));
-				$file->setMimeType($mimetype);
-				$parent = new \Google_Service_Drive_ParentReference();
-				$parent->setId($parentFolder->getId());
-				$file->setParents(array($parent));
-				$this->client->setDefer($useChunking);
-				$request = $this->service->files->insert($file, $params);
-			}
-
-			if ($useChunking) {
-				// Create a media file upload to represent our upload process.
-				$media = new \Google_Http_MediaFileUpload(
-					$this->client,
-					$request,
-					'text/plain',
-					null,
-					true,
-					$chunkSizeBytes
-				);
-				$media->setFileSize($size);
-
-				// Upload the various chunks. $status will be false until the process is
-				// complete.
-				$status = false;
-				$handle = fopen($tmpFile, 'rb');
-				while (!$status && !feof($handle)) {
-					$chunk = fread($handle, $chunkSizeBytes);
-					$status = $media->nextChunk($chunk);
-				}
-
-				// The final value of $status will be the data from the API for the object
-				// that has been uploaded.
-				$result = false;
-				if ($status !== false) {
-					$result = $status;
-				}
-
-				fclose($handle);
-			} else {
-				$result = $request;
-			}
-
-			// Reset to the client to execute requests immediately in the future.
-			$this->client->setDefer(false);
-
-			if ($result) {
-				$this->setDriveFile($path, $result);
-			}
-		}
-	}
-
-	public function getMimeType($path) {
-		$file = $this->getDriveFile($path);
-		if ($file) {
-			$mimetype = $file->getMimeType();
-			// Convert Google Doc mimetypes, choosing Open Document formats for download
-			if ($mimetype === self::FOLDER) {
-				return 'httpd/unix-directory';
-			} else if ($mimetype === self::DOCUMENT) {
-				return 'application/vnd.oasis.opendocument.text';
-			} else if ($mimetype === self::SPREADSHEET) {
-				return 'application/x-vnd.oasis.opendocument.spreadsheet';
-			} else if ($mimetype === self::DRAWING) {
-				return 'image/jpeg';
-			} else if ($mimetype === self::PRESENTATION) {
-				// Download as .odp is not available
-				return 'application/pdf';
-			} else {
-				// use extension-based detection, could be an encrypted file
-				return parent::getMimeType($path);
-			}
-		} else {
-			return false;
-		}
-	}
-
-	public function free_space($path) {
-		$about = $this->service->about->get();
-		return $about->getQuotaBytesTotal() - $about->getQuotaBytesUsed();
-	}
-
-	public function touch($path, $mtime = null) {
-		$file = $this->getDriveFile($path);
-		$result = false;
-		if ($file) {
-			if (isset($mtime)) {
-				// This is just RFC3339, but frustratingly, GDrive's API *requires*
-				// the fractions portion be present, while no handy PHP constant
-				// for RFC3339 or ISO8601 includes it. So we do it ourselves.
-				$file->setModifiedDate(date('Y-m-d\TH:i:s.uP', $mtime));
-				$result = $this->service->files->patch($file->getId(), $file, array(
-					'setModifiedDate' => true,
-				));
-			} else {
-				$result = $this->service->files->touch($file->getId());
-			}
-		} else {
-			$parentFolder = $this->getDriveFile(dirname($path));
-			if ($parentFolder) {
-				$file = new \Google_Service_Drive_DriveFile();
-				$file->setTitle(basename($path));
-				$parent = new \Google_Service_Drive_ParentReference();
-				$parent->setId($parentFolder->getId());
-				$file->setParents(array($parent));
-				$result = $this->service->files->insert($file);
-			}
-		}
-		if ($result) {
-			$this->setDriveFile($path, $result);
-		}
-		return (bool)$result;
-	}
-
-	public function test() {
-		if ($this->free_space('')) {
-			return true;
-		}
-		return false;
-	}
-
-	public function hasUpdated($path, $time) {
-		$appConfig = \OC::$server->getAppConfig();
-		if ($this->is_file($path)) {
-			return parent::hasUpdated($path, $time);
-		} else {
-			// Google Drive doesn't change modified times of folders when files inside are updated
-			// Instead we use the Changes API to see if folders have been updated, and it's a pain
-			$folder = $this->getDriveFile($path);
-			if ($folder) {
-				$result = false;
-				$folderId = $folder->getId();
-				$startChangeId = $appConfig->getValue('files_external', $this->getId().'cId');
-				$params = array(
-					'includeDeleted' => true,
-					'includeSubscribed' => true,
-				);
-				if (isset($startChangeId)) {
-					$startChangeId = (int)$startChangeId;
-					$largestChangeId = $startChangeId;
-					$params['startChangeId'] = $startChangeId + 1;
-				} else {
-					$largestChangeId = 0;
-				}
-				$pageToken = true;
-				while ($pageToken) {
-					if ($pageToken !== true) {
-						$params['pageToken'] = $pageToken;
-					}
-					$changes = $this->service->changes->listChanges($params);
-					if ($largestChangeId === 0 || $largestChangeId === $startChangeId) {
-						$largestChangeId = $changes->getLargestChangeId();
-					}
-					if (isset($startChangeId)) {
-						// Check if a file in this folder has been updated
-						// There is no way to filter by folder at the API level...
-						foreach ($changes->getItems() as $change) {
-							$file = $change->getFile();
-							if ($file) {
-								foreach ($file->getParents() as $parent) {
-									if ($parent->getId() === $folderId) {
-										$result = true;
-									// Check if there are changes in different folders
-									} else if ($change->getId() <= $largestChangeId) {
-										// Decrement id so this change is fetched when called again
-										$largestChangeId = $change->getId();
-										$largestChangeId--;
-									}
-								}
-							}
-						}
-						$pageToken = $changes->getNextPageToken();
-					} else {
-						// Assuming the initial scan just occurred and changes are negligible
-						break;
-					}
-				}
-				$appConfig->setValue('files_external', $this->getId().'cId', $largestChangeId);
-				return $result;
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * check if curl is installed
-	 */
-	public static function checkDependencies() {
-		return true;
-	}
+    private $client;
+    private $id;
+    private $service;
+    private $driveFiles;
+
+    // Google Doc mimetypes
+    const FOLDER = 'application/vnd.google-apps.folder';
+    const DOCUMENT = 'application/vnd.google-apps.document';
+    const SPREADSHEET = 'application/vnd.google-apps.spreadsheet';
+    const DRAWING = 'application/vnd.google-apps.drawing';
+    const PRESENTATION = 'application/vnd.google-apps.presentation';
+    const MAP = 'application/vnd.google-apps.map';
+
+    public function __construct($params) {
+        if (isset($params['configured']) && $params['configured'] === 'true'
+            && isset($params['client_id']) && isset($params['client_secret'])
+            && isset($params['token'])
+        ) {
+            $this->client = new \Google_Client();
+            $this->client->setClientId($params['client_id']);
+            $this->client->setClientSecret($params['client_secret']);
+            $this->client->setScopes(array('https://www.googleapis.com/auth/drive'));
+            $this->client->setAccessToken($params['token']);
+            // if curl isn't available we're likely to run into
+            // https://github.com/google/google-api-php-client/issues/59
+            // - disable gzip to avoid it.
+            if (!function_exists('curl_version') || !function_exists('curl_exec')) {
+                $this->client->setClassConfig("Google_Http_Request", "disable_gzip", true);
+            }
+            // note: API connection is lazy
+            $this->service = new \Google_Service_Drive($this->client);
+            $token = json_decode($params['token'], true);
+            $this->id = 'google::'.substr($params['client_id'], 0, 30).$token['created'];
+        } else {
+            throw new \Exception('Creating Google storage failed');
+        }
+    }
+
+    public function getId() {
+        return $this->id;
+    }
+
+    /**
+     * Get the Google_Service_Drive_DriveFile object for the specified path.
+     * Returns false on failure.
+     * @param string $path
+     * @return \Google_Service_Drive_DriveFile|false
+     */
+    private function getDriveFile($path) {
+        // Remove leading and trailing slashes
+        $path = trim($path, '/');
+        if ($path === '.') {
+            $path = '';
+        }
+        if (isset($this->driveFiles[$path])) {
+            return $this->driveFiles[$path];
+        } else if ($path === '') {
+            $root = $this->service->files->get('root');
+            $this->driveFiles[$path] = $root;
+            return $root;
+        } else {
+            // Google Drive SDK does not have methods for retrieving files by path
+            // Instead we must find the id of the parent folder of the file
+            $parentId = $this->getDriveFile('')->getId();
+            $folderNames = explode('/', $path);
+            $path = '';
+            // Loop through each folder of this path to get to the file
+            foreach ($folderNames as $name) {
+                // Reconstruct path from beginning
+                if ($path === '') {
+                    $path .= $name;
+                } else {
+                    $path .= '/'.$name;
+                }
+                if (isset($this->driveFiles[$path])) {
+                    $parentId = $this->driveFiles[$path]->getId();
+                } else {
+                    $q = "title='" . str_replace("'","\\'", $name) . "' and '" . str_replace("'","\\'", $parentId) . "' in parents and trashed = false";
+                    $result = $this->service->files->listFiles(array('q' => $q))->getItems();
+                    if (!empty($result)) {
+                        // Google Drive allows files with the same name, ownCloud doesn't
+                        if (count($result) > 1) {
+                            $this->onDuplicateFileDetected($path);
+                            return false;
+                        } else {
+                            $file = current($result);
+                            $this->driveFiles[$path] = $file;
+                            $parentId = $file->getId();
+                        }
+                    } else {
+                        // Google Docs have no extension in their title, so try without extension
+                        $pos = strrpos($path, '.');
+                        if ($pos !== false) {
+                            $pathWithoutExt = substr($path, 0, $pos);
+                            $file = $this->getDriveFile($pathWithoutExt);
+                            if ($file && $this->isGoogleDocFile($file)) {
+                                // Switch cached Google_Service_Drive_DriveFile to the correct index
+                                unset($this->driveFiles[$pathWithoutExt]);
+                                $this->driveFiles[$path] = $file;
+                                $parentId = $file->getId();
+                            } else {
+                                return false;
+                            }
+                        } else {
+                            return false;
+                        }
+                    }
+                }
+            }
+            return $this->driveFiles[$path];
+        }
+    }
+
+    /**
+     * Set the Google_Service_Drive_DriveFile object in the cache
+     * @param string $path
+     * @param \Google_Service_Drive_DriveFile|false $file
+     */
+    private function setDriveFile($path, $file) {
+        $path = trim($path, '/');
+        $this->driveFiles[$path] = $file;
+        if ($file === false) {
+            // Remove all children
+            $len = strlen($path);
+            foreach ($this->driveFiles as $key => $file) {
+                if (substr($key, 0, $len) === $path) {
+                    unset($this->driveFiles[$key]);
+                }
+            }
+        }
+    }
+
+    /**
+     * Write a log message to inform about duplicate file names
+     * @param string $path
+     */
+    private function onDuplicateFileDetected($path) {
+        $about = $this->service->about->get();
+        $user = $about->getName();
+        \OCP\Util::writeLog('files_external',
+            'Ignoring duplicate file name: '.$path.' on Google Drive for Google user: '.$user,
+            \OCP\Util::INFO
+        );
+    }
+
+    /**
+     * Generate file extension for a Google Doc, choosing Open Document formats for download
+     * @param string $mimetype
+     * @return string
+     */
+    private function getGoogleDocExtension($mimetype) {
+        if ($mimetype === self::DOCUMENT) {
+            return 'odt';
+        } else if ($mimetype === self::SPREADSHEET) {
+            return 'ods';
+        } else if ($mimetype === self::DRAWING) {
+            return 'jpg';
+        } else if ($mimetype === self::PRESENTATION) {
+            // Download as .odp is not available
+            return 'pdf';
+        } else {
+            return '';
+        }
+    }
+
+    /**
+     * Returns whether the given drive file is a Google Doc file
+     *
+     * @param \Google_Service_Drive_DriveFile
+     *
+     * @return true if the file is a Google Doc file, false otherwise
+     */
+    private function isGoogleDocFile($file) {
+        return $this->getGoogleDocExtension($file->getMimeType()) !== '';
+    }
+
+    public function mkdir($path) {
+        if (!$this->is_dir($path)) {
+            $parentFolder = $this->getDriveFile(dirname($path));
+            if ($parentFolder) {
+                $folder = new \Google_Service_Drive_DriveFile();
+                $folder->setTitle(basename($path));
+                $folder->setMimeType(self::FOLDER);
+                $parent = new \Google_Service_Drive_ParentReference();
+                $parent->setId($parentFolder->getId());
+                $folder->setParents(array($parent));
+                $result = $this->service->files->insert($folder);
+                if ($result) {
+                    $this->setDriveFile($path, $result);
+                }
+                return (bool)$result;
+            }
+        }
+        return false;
+    }
+
+    public function rmdir($path) {
+        if (!$this->isDeletable($path)) {
+            return false;
+        }
+        if (trim($path, '/') === '') {
+            $dir = $this->opendir($path);
+            if(is_resource($dir)) {
+                while (($file = readdir($dir)) !== false) {
+                    if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
+                        if (!$this->unlink($path.'/'.$file)) {
+                            return false;
+                        }
+                    }
+                }
+                closedir($dir);
+            }
+            $this->driveFiles = array();
+            return true;
+        } else {
+            return $this->unlink($path);
+        }
+    }
+
+    public function opendir($path) {
+        $folder = $this->getDriveFile($path);
+        if ($folder) {
+            $files = array();
+            $duplicates = array();
+            $pageToken = true;
+            while ($pageToken) {
+                $params = array();
+                if ($pageToken !== true) {
+                    $params['pageToken'] = $pageToken;
+                }
+                $params['q'] = "'" . str_replace("'","\\'", $folder->getId()) . "' in parents and trashed = false";
+                $children = $this->service->files->listFiles($params);
+                foreach ($children->getItems() as $child) {
+                    $name = $child->getTitle();
+                    // Check if this is a Google Doc i.e. no extension in name
+                    $extension = $child->getFileExtension();
+                    if (empty($extension)) {
+                        if ($child->getMimeType() === self::MAP) {
+                            continue; // No method known to transfer map files, ignore it
+                        } else if ($child->getMimeType() !== self::FOLDER) {
+                            $name .= '.'.$this->getGoogleDocExtension($child->getMimeType());
+                        }
+                    }
+                    if ($path === '') {
+                        $filepath = $name;
+                    } else {
+                        $filepath = $path.'/'.$name;
+                    }
+                    // Google Drive allows files with the same name, ownCloud doesn't
+                    // Prevent opendir() from returning any duplicate files
+                    $key = array_search($name, $files);
+                    if ($key !== false || isset($duplicates[$filepath])) {
+                        if (!isset($duplicates[$filepath])) {
+                            $duplicates[$filepath] = true;
+                            $this->setDriveFile($filepath, false);
+                            unset($files[$key]);
+                            $this->onDuplicateFileDetected($filepath);
+                        }
+                    } else {
+                        // Cache the Google_Service_Drive_DriveFile for future use
+                        $this->setDriveFile($filepath, $child);
+                        $files[] = $name;
+                    }
+                }
+                $pageToken = $children->getNextPageToken();
+            }
+            return IteratorDirectory::wrap($files);
+        } else {
+            return false;
+        }
+    }
+
+    public function stat($path) {
+        $file = $this->getDriveFile($path);
+        if ($file) {
+            $stat = array();
+            if ($this->filetype($path) === 'dir') {
+                $stat['size'] = 0;
+            } else {
+                // Check if this is a Google Doc
+                if ($this->isGoogleDocFile($file)) {
+                    // Return unknown file size
+                    $stat['size'] = \OCP\Files\FileInfo::SPACE_UNKNOWN;
+                } else {
+                    $stat['size'] = $file->getFileSize();
+                }
+            }
+            $stat['atime'] = strtotime($file->getLastViewedByMeDate());
+            $stat['mtime'] = strtotime($file->getModifiedDate());
+            $stat['ctime'] = strtotime($file->getCreatedDate());
+            return $stat;
+        } else {
+            return false;
+        }
+    }
+
+    public function filetype($path) {
+        if ($path === '') {
+            return 'dir';
+        } else {
+            $file = $this->getDriveFile($path);
+            if ($file) {
+                if ($file->getMimeType() === self::FOLDER) {
+                    return 'dir';
+                } else {
+                    return 'file';
+                }
+            } else {
+                return false;
+            }
+        }
+    }
+
+    public function isUpdatable($path) {
+        $file = $this->getDriveFile($path);
+        if ($file) {
+            return $file->getEditable();
+        } else {
+            return false;
+        }
+    }
+
+    public function file_exists($path) {
+        return (bool)$this->getDriveFile($path);
+    }
+
+    public function unlink($path) {
+        $file = $this->getDriveFile($path);
+        if ($file) {
+            $result = $this->service->files->trash($file->getId());
+            if ($result) {
+                $this->setDriveFile($path, false);
+            }
+            return (bool)$result;
+        } else {
+            return false;
+        }
+    }
+
+    public function rename($path1, $path2) {
+        $file = $this->getDriveFile($path1);
+        if ($file) {
+            $newFile = $this->getDriveFile($path2);
+            if (dirname($path1) === dirname($path2)) {
+                if ($newFile) {
+                    // rename to the name of the target file, could be an office file without extension
+                    $file->setTitle($newFile->getTitle());
+                } else {
+                    $file->setTitle(basename(($path2)));
+                }
+            } else {
+                // Change file parent
+                $parentFolder2 = $this->getDriveFile(dirname($path2));
+                if ($parentFolder2) {
+                    $parent = new \Google_Service_Drive_ParentReference();
+                    $parent->setId($parentFolder2->getId());
+                    $file->setParents(array($parent));
+                } else {
+                    return false;
+                }
+            }
+            // We need to get the object for the existing file with the same
+            // name (if there is one) before we do the patch. If oldfile
+            // exists and is a directory we have to delete it before we
+            // do the rename too.
+            $oldfile = $this->getDriveFile($path2);
+            if ($oldfile && $this->is_dir($path2)) {
+                $this->rmdir($path2);
+                $oldfile = false;
+            }
+            $result = $this->service->files->patch($file->getId(), $file);
+            if ($result) {
+                $this->setDriveFile($path1, false);
+                $this->setDriveFile($path2, $result);
+                if ($oldfile && $newFile) {
+                    // only delete if they have a different id (same id can happen for part files)
+                    if ($newFile->getId() !== $oldfile->getId()) {
+                        $this->service->files->delete($oldfile->getId());
+                    }
+                }
+            }
+            return (bool)$result;
+        } else {
+            return false;
+        }
+    }
+
+    public function fopen($path, $mode) {
+        $pos = strrpos($path, '.');
+        if ($pos !== false) {
+            $ext = substr($path, $pos);
+        } else {
+            $ext = '';
+        }
+        switch ($mode) {
+            case 'r':
+            case 'rb':
+                $file = $this->getDriveFile($path);
+                if ($file) {
+                    $exportLinks = $file->getExportLinks();
+                    $mimetype = $this->getMimeType($path);
+                    $downloadUrl = null;
+                    if ($exportLinks && isset($exportLinks[$mimetype])) {
+                        $downloadUrl = $exportLinks[$mimetype];
+                    } else {
+                        $downloadUrl = $file->getDownloadUrl();
+                    }
+                    if (isset($downloadUrl)) {
+                        $request = new \Google_Http_Request($downloadUrl, 'GET', null, null);
+                        $httpRequest = $this->client->getAuth()->sign($request);
+                        // the library's service doesn't support streaming, so we use Guzzle instead
+                        $client = \OC::$server->getHTTPClientService()->newClient();
+                        try {
+                            $response = $client->get($downloadUrl, [
+                                'headers' => $httpRequest->getRequestHeaders(),
+                                'stream' => true,
+                                'verify' => realpath(__DIR__ . '/../../../3rdparty/google-api-php-client/src/Google/IO/cacerts.pem'),
+                            ]);
+                        } 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);
+                    }
+                }
+                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+':
+                $tmpFile = \OCP\Files::tmpFile($ext);
+                if ($this->file_exists($path)) {
+                    $source = $this->fopen($path, 'rb');
+                    file_put_contents($tmpFile, $source);
+                }
+                $handle = fopen($tmpFile, $mode);
+                return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
+                    $this->writeBack($tmpFile, $path);
+                });
+        }
+    }
+
+    public function writeBack($tmpFile, $path) {
+        $parentFolder = $this->getDriveFile(dirname($path));
+        if ($parentFolder) {
+            $mimetype = \OC::$server->getMimeTypeDetector()->detect($tmpFile);
+            $params = array(
+                'mimeType' => $mimetype,
+                'uploadType' => 'media'
+            );
+            $result = false;
+
+            $chunkSizeBytes = 10 * 1024 * 1024;
+
+            $useChunking = false;
+            $size = filesize($tmpFile);
+            if ($size > $chunkSizeBytes) {
+                $useChunking = true;
+            } else {
+                $params['data'] = file_get_contents($tmpFile);
+            }
+
+            if ($this->file_exists($path)) {
+                $file = $this->getDriveFile($path);
+                $this->client->setDefer($useChunking);
+                $request = $this->service->files->update($file->getId(), $file, $params);
+            } else {
+                $file = new \Google_Service_Drive_DriveFile();
+                $file->setTitle(basename($path));
+                $file->setMimeType($mimetype);
+                $parent = new \Google_Service_Drive_ParentReference();
+                $parent->setId($parentFolder->getId());
+                $file->setParents(array($parent));
+                $this->client->setDefer($useChunking);
+                $request = $this->service->files->insert($file, $params);
+            }
+
+            if ($useChunking) {
+                // Create a media file upload to represent our upload process.
+                $media = new \Google_Http_MediaFileUpload(
+                    $this->client,
+                    $request,
+                    'text/plain',
+                    null,
+                    true,
+                    $chunkSizeBytes
+                );
+                $media->setFileSize($size);
+
+                // Upload the various chunks. $status will be false until the process is
+                // complete.
+                $status = false;
+                $handle = fopen($tmpFile, 'rb');
+                while (!$status && !feof($handle)) {
+                    $chunk = fread($handle, $chunkSizeBytes);
+                    $status = $media->nextChunk($chunk);
+                }
+
+                // The final value of $status will be the data from the API for the object
+                // that has been uploaded.
+                $result = false;
+                if ($status !== false) {
+                    $result = $status;
+                }
+
+                fclose($handle);
+            } else {
+                $result = $request;
+            }
+
+            // Reset to the client to execute requests immediately in the future.
+            $this->client->setDefer(false);
+
+            if ($result) {
+                $this->setDriveFile($path, $result);
+            }
+        }
+    }
+
+    public function getMimeType($path) {
+        $file = $this->getDriveFile($path);
+        if ($file) {
+            $mimetype = $file->getMimeType();
+            // Convert Google Doc mimetypes, choosing Open Document formats for download
+            if ($mimetype === self::FOLDER) {
+                return 'httpd/unix-directory';
+            } else if ($mimetype === self::DOCUMENT) {
+                return 'application/vnd.oasis.opendocument.text';
+            } else if ($mimetype === self::SPREADSHEET) {
+                return 'application/x-vnd.oasis.opendocument.spreadsheet';
+            } else if ($mimetype === self::DRAWING) {
+                return 'image/jpeg';
+            } else if ($mimetype === self::PRESENTATION) {
+                // Download as .odp is not available
+                return 'application/pdf';
+            } else {
+                // use extension-based detection, could be an encrypted file
+                return parent::getMimeType($path);
+            }
+        } else {
+            return false;
+        }
+    }
+
+    public function free_space($path) {
+        $about = $this->service->about->get();
+        return $about->getQuotaBytesTotal() - $about->getQuotaBytesUsed();
+    }
+
+    public function touch($path, $mtime = null) {
+        $file = $this->getDriveFile($path);
+        $result = false;
+        if ($file) {
+            if (isset($mtime)) {
+                // This is just RFC3339, but frustratingly, GDrive's API *requires*
+                // the fractions portion be present, while no handy PHP constant
+                // for RFC3339 or ISO8601 includes it. So we do it ourselves.
+                $file->setModifiedDate(date('Y-m-d\TH:i:s.uP', $mtime));
+                $result = $this->service->files->patch($file->getId(), $file, array(
+                    'setModifiedDate' => true,
+                ));
+            } else {
+                $result = $this->service->files->touch($file->getId());
+            }
+        } else {
+            $parentFolder = $this->getDriveFile(dirname($path));
+            if ($parentFolder) {
+                $file = new \Google_Service_Drive_DriveFile();
+                $file->setTitle(basename($path));
+                $parent = new \Google_Service_Drive_ParentReference();
+                $parent->setId($parentFolder->getId());
+                $file->setParents(array($parent));
+                $result = $this->service->files->insert($file);
+            }
+        }
+        if ($result) {
+            $this->setDriveFile($path, $result);
+        }
+        return (bool)$result;
+    }
+
+    public function test() {
+        if ($this->free_space('')) {
+            return true;
+        }
+        return false;
+    }
+
+    public function hasUpdated($path, $time) {
+        $appConfig = \OC::$server->getAppConfig();
+        if ($this->is_file($path)) {
+            return parent::hasUpdated($path, $time);
+        } else {
+            // Google Drive doesn't change modified times of folders when files inside are updated
+            // Instead we use the Changes API to see if folders have been updated, and it's a pain
+            $folder = $this->getDriveFile($path);
+            if ($folder) {
+                $result = false;
+                $folderId = $folder->getId();
+                $startChangeId = $appConfig->getValue('files_external', $this->getId().'cId');
+                $params = array(
+                    'includeDeleted' => true,
+                    'includeSubscribed' => true,
+                );
+                if (isset($startChangeId)) {
+                    $startChangeId = (int)$startChangeId;
+                    $largestChangeId = $startChangeId;
+                    $params['startChangeId'] = $startChangeId + 1;
+                } else {
+                    $largestChangeId = 0;
+                }
+                $pageToken = true;
+                while ($pageToken) {
+                    if ($pageToken !== true) {
+                        $params['pageToken'] = $pageToken;
+                    }
+                    $changes = $this->service->changes->listChanges($params);
+                    if ($largestChangeId === 0 || $largestChangeId === $startChangeId) {
+                        $largestChangeId = $changes->getLargestChangeId();
+                    }
+                    if (isset($startChangeId)) {
+                        // Check if a file in this folder has been updated
+                        // There is no way to filter by folder at the API level...
+                        foreach ($changes->getItems() as $change) {
+                            $file = $change->getFile();
+                            if ($file) {
+                                foreach ($file->getParents() as $parent) {
+                                    if ($parent->getId() === $folderId) {
+                                        $result = true;
+                                    // Check if there are changes in different folders
+                                    } else if ($change->getId() <= $largestChangeId) {
+                                        // Decrement id so this change is fetched when called again
+                                        $largestChangeId = $change->getId();
+                                        $largestChangeId--;
+                                    }
+                                }
+                            }
+                        }
+                        $pageToken = $changes->getNextPageToken();
+                    } else {
+                        // Assuming the initial scan just occurred and changes are negligible
+                        break;
+                    }
+                }
+                $appConfig->setValue('files_external', $this->getId().'cId', $largestChangeId);
+                return $result;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * check if curl is installed
+     */
+    public static function checkDependencies() {
+        return true;
+    }
 
 }

Spacing +12 added lines, -12 removed lines

@@ -123,7 +123,7 @@ 
 				if (isset($this->driveFiles[$path])) {
 					$parentId = $this->driveFiles[$path]->getId();
 				} else {
-					$q = "title='" . str_replace("'","\\'", $name) . "' and '" . str_replace("'","\\'", $parentId) . "' in parents and trashed = false";
+					$q = "title='".str_replace("'", "\\'", $name)."' and '".str_replace("'", "\\'", $parentId)."' in parents and trashed = false";
 					$result = $this->service->files->listFiles(array('q' => $q))->getItems();
 					if (!empty($result)) {
 						// Google Drive allows files with the same name, ownCloud doesn't
@@ -236,7 +236,7 @@ 
 				if ($result) {
 					$this->setDriveFile($path, $result);
 				}
-				return (bool)$result;
+				return (bool) $result;
 			}
 		}
 		return false;
@@ -248,7 +248,7 @@ 
 		}
 		if (trim($path, '/') === '') {
 			$dir = $this->opendir($path);
-			if(is_resource($dir)) {
+			if (is_resource($dir)) {
 				while (($file = readdir($dir)) !== false) {
 					if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
 						if (!$this->unlink($path.'/'.$file)) {
@@ -276,7 +276,7 @@ 
 				if ($pageToken !== true) {
 					$params['pageToken'] = $pageToken;
 				}
-				$params['q'] = "'" . str_replace("'","\\'", $folder->getId()) . "' in parents and trashed = false";
+				$params['q'] = "'".str_replace("'", "\\'", $folder->getId())."' in parents and trashed = false";
 				$children = $this->service->files->listFiles($params);
 				foreach ($children->getItems() as $child) {
 					$name = $child->getTitle();
@@ -369,7 +369,7 @@ 
 	}
 
 	public function file_exists($path) {
-		return (bool)$this->getDriveFile($path);
+		return (bool) $this->getDriveFile($path);
 	}
 
 	public function unlink($path) {
@@ -379,7 +379,7 @@ 
 			if ($result) {
 				$this->setDriveFile($path, false);
 			}
-			return (bool)$result;
+			return (bool) $result;
 		} else {
 			return false;
 		}
@@ -427,7 +427,7 @@ 
 					}
 				}
 			}
-			return (bool)$result;
+			return (bool) $result;
 		} else {
 			return false;
 		}
@@ -462,10 +462,10 @@ 
 							$response = $client->get($downloadUrl, [
 								'headers' => $httpRequest->getRequestHeaders(),
 								'stream' => true,
-								'verify' => realpath(__DIR__ . '/../../../3rdparty/google-api-php-client/src/Google/IO/cacerts.pem'),
+								'verify' => realpath(__DIR__.'/../../../3rdparty/google-api-php-client/src/Google/IO/cacerts.pem'),
 							]);
 						} catch (RequestException $e) {
-							if(!is_null($e->getResponse())) {
+							if (!is_null($e->getResponse())) {
 								if ($e->getResponse()->getStatusCode() === 404) {
 									return false;
 								} else {
@@ -499,7 +499,7 @@ 
 					file_put_contents($tmpFile, $source);
 				}
 				$handle = fopen($tmpFile, $mode);
-				return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
+				return CallbackWrapper::wrap($handle, null, null, function() use ($path, $tmpFile) {
 					$this->writeBack($tmpFile, $path);
 				});
 		}
@@ -641,7 +641,7 @@ 
 		if ($result) {
 			$this->setDriveFile($path, $result);
 		}
-		return (bool)$result;
+		return (bool) $result;
 	}
 
 	public function test() {
@@ -668,7 +668,7 @@ 
 					'includeSubscribed' => true,
 				);
 				if (isset($startChangeId)) {
-					$startChangeId = (int)$startChangeId;
+					$startChangeId = (int) $startChangeId;
 					$largestChangeId = $startChangeId;
 					$params['startChangeId'] = $startChangeId + 1;
 				} else {

lib/private/Archive/TAR.php

Doc Comments +1 added lines

@@ -370,6 +370,7 @@
 
 	/**
 	 * write back temporary files
+	 * @param string $path
 	 */
 	function writeBack($tmpFile, $path) {
 		$this->addFile($path, $tmpFile);

Indentation +331 added lines, -331 removed lines

@@ -36,355 +36,355 @@
 use Icewind\Streams\CallbackWrapper;
 
 class TAR extends Archive {
-	const PLAIN = 0;
-	const GZIP = 1;
-	const BZIP = 2;
+    const PLAIN = 0;
+    const GZIP = 1;
+    const BZIP = 2;
 
-	private $fileList;
-	private $cachedHeaders;
+    private $fileList;
+    private $cachedHeaders;
 
-	/**
-	 * @var \Archive_Tar tar
-	 */
-	private $tar = null;
-	private $path;
+    /**
+     * @var \Archive_Tar tar
+     */
+    private $tar = null;
+    private $path;
 
-	/**
-	 * @param string $source
-	 */
-	function __construct($source) {
-		$types = array(null, 'gz', 'bz2');
-		$this->path = $source;
-		$this->tar = new \Archive_Tar($source, $types[self::getTarType($source)]);
-	}
+    /**
+     * @param string $source
+     */
+    function __construct($source) {
+        $types = array(null, 'gz', 'bz2');
+        $this->path = $source;
+        $this->tar = new \Archive_Tar($source, $types[self::getTarType($source)]);
+    }
 
-	/**
-	 * try to detect the type of tar compression
-	 *
-	 * @param string $file
-	 * @return integer
-	 */
-	static public function getTarType($file) {
-		if (strpos($file, '.')) {
-			$extension = substr($file, strrpos($file, '.'));
-			switch ($extension) {
-				case '.gz':
-				case '.tgz':
-					return self::GZIP;
-				case '.bz':
-				case '.bz2':
-					return self::BZIP;
-				case '.tar':
-					return self::PLAIN;
-				default:
-					return self::PLAIN;
-			}
-		} else {
-			return self::PLAIN;
-		}
-	}
+    /**
+     * try to detect the type of tar compression
+     *
+     * @param string $file
+     * @return integer
+     */
+    static public function getTarType($file) {
+        if (strpos($file, '.')) {
+            $extension = substr($file, strrpos($file, '.'));
+            switch ($extension) {
+                case '.gz':
+                case '.tgz':
+                    return self::GZIP;
+                case '.bz':
+                case '.bz2':
+                    return self::BZIP;
+                case '.tar':
+                    return self::PLAIN;
+                default:
+                    return self::PLAIN;
+            }
+        } else {
+            return self::PLAIN;
+        }
+    }
 
-	/**
-	 * add an empty folder to the archive
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	function addFolder($path) {
-		$tmpBase = \OC::$server->getTempManager()->getTemporaryFolder();
-		if (substr($path, -1, 1) != '/') {
-			$path .= '/';
-		}
-		if ($this->fileExists($path)) {
-			return false;
-		}
-		$parts = explode('/', $path);
-		$folder = $tmpBase;
-		foreach ($parts as $part) {
-			$folder .= '/' . $part;
-			if (!is_dir($folder)) {
-				mkdir($folder);
-			}
-		}
-		$result = $this->tar->addModify(array($tmpBase . $path), '', $tmpBase);
-		rmdir($tmpBase . $path);
-		$this->fileList = false;
-		$this->cachedHeaders = false;
-		return $result;
-	}
+    /**
+     * add an empty folder to the archive
+     *
+     * @param string $path
+     * @return bool
+     */
+    function addFolder($path) {
+        $tmpBase = \OC::$server->getTempManager()->getTemporaryFolder();
+        if (substr($path, -1, 1) != '/') {
+            $path .= '/';
+        }
+        if ($this->fileExists($path)) {
+            return false;
+        }
+        $parts = explode('/', $path);
+        $folder = $tmpBase;
+        foreach ($parts as $part) {
+            $folder .= '/' . $part;
+            if (!is_dir($folder)) {
+                mkdir($folder);
+            }
+        }
+        $result = $this->tar->addModify(array($tmpBase . $path), '', $tmpBase);
+        rmdir($tmpBase . $path);
+        $this->fileList = false;
+        $this->cachedHeaders = false;
+        return $result;
+    }
 
-	/**
-	 * add a file to the archive
-	 *
-	 * @param string $path
-	 * @param string $source either a local file or string data
-	 * @return bool
-	 */
-	function addFile($path, $source = '') {
-		if ($this->fileExists($path)) {
-			$this->remove($path);
-		}
-		if ($source and $source[0] == '/' and file_exists($source)) {
-			$source = file_get_contents($source);
-		}
-		$result = $this->tar->addString($path, $source);
-		$this->fileList = false;
-		$this->cachedHeaders = false;
-		return $result;
-	}
+    /**
+     * add a file to the archive
+     *
+     * @param string $path
+     * @param string $source either a local file or string data
+     * @return bool
+     */
+    function addFile($path, $source = '') {
+        if ($this->fileExists($path)) {
+            $this->remove($path);
+        }
+        if ($source and $source[0] == '/' and file_exists($source)) {
+            $source = file_get_contents($source);
+        }
+        $result = $this->tar->addString($path, $source);
+        $this->fileList = false;
+        $this->cachedHeaders = false;
+        return $result;
+    }
 
-	/**
-	 * rename a file or folder in the archive
-	 *
-	 * @param string $source
-	 * @param string $dest
-	 * @return bool
-	 */
-	function rename($source, $dest) {
-		//no proper way to delete, rename entire archive, rename file and remake archive
-		$tmp = \OCP\Files::tmpFolder();
-		$this->tar->extract($tmp);
-		rename($tmp . $source, $tmp . $dest);
-		$this->tar = null;
-		unlink($this->path);
-		$types = array(null, 'gz', 'bz');
-		$this->tar = new \Archive_Tar($this->path, $types[self::getTarType($this->path)]);
-		$this->tar->createModify(array($tmp), '', $tmp . '/');
-		$this->fileList = false;
-		$this->cachedHeaders = false;
-		return true;
-	}
+    /**
+     * rename a file or folder in the archive
+     *
+     * @param string $source
+     * @param string $dest
+     * @return bool
+     */
+    function rename($source, $dest) {
+        //no proper way to delete, rename entire archive, rename file and remake archive
+        $tmp = \OCP\Files::tmpFolder();
+        $this->tar->extract($tmp);
+        rename($tmp . $source, $tmp . $dest);
+        $this->tar = null;
+        unlink($this->path);
+        $types = array(null, 'gz', 'bz');
+        $this->tar = new \Archive_Tar($this->path, $types[self::getTarType($this->path)]);
+        $this->tar->createModify(array($tmp), '', $tmp . '/');
+        $this->fileList = false;
+        $this->cachedHeaders = false;
+        return true;
+    }
 
-	/**
-	 * @param string $file
-	 */
-	private function getHeader($file) {
-		if (!$this->cachedHeaders) {
-			$this->cachedHeaders = $this->tar->listContent();
-		}
-		foreach ($this->cachedHeaders as $header) {
-			if ($file == $header['filename']
-				or $file . '/' == $header['filename']
-				or '/' . $file . '/' == $header['filename']
-				or '/' . $file == $header['filename']
-			) {
-				return $header;
-			}
-		}
-		return null;
-	}
+    /**
+     * @param string $file
+     */
+    private function getHeader($file) {
+        if (!$this->cachedHeaders) {
+            $this->cachedHeaders = $this->tar->listContent();
+        }
+        foreach ($this->cachedHeaders as $header) {
+            if ($file == $header['filename']
+                or $file . '/' == $header['filename']
+                or '/' . $file . '/' == $header['filename']
+                or '/' . $file == $header['filename']
+            ) {
+                return $header;
+            }
+        }
+        return null;
+    }
 
-	/**
-	 * get the uncompressed size of a file in the archive
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	function filesize($path) {
-		$stat = $this->getHeader($path);
-		return $stat['size'];
-	}
+    /**
+     * get the uncompressed size of a file in the archive
+     *
+     * @param string $path
+     * @return int
+     */
+    function filesize($path) {
+        $stat = $this->getHeader($path);
+        return $stat['size'];
+    }
 
-	/**
-	 * get the last modified time of a file in the archive
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	function mtime($path) {
-		$stat = $this->getHeader($path);
-		return $stat['mtime'];
-	}
+    /**
+     * get the last modified time of a file in the archive
+     *
+     * @param string $path
+     * @return int
+     */
+    function mtime($path) {
+        $stat = $this->getHeader($path);
+        return $stat['mtime'];
+    }
 
-	/**
-	 * get the files in a folder
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	function getFolder($path) {
-		$files = $this->getFiles();
-		$folderContent = array();
-		$pathLength = strlen($path);
-		foreach ($files as $file) {
-			if ($file[0] == '/') {
-				$file = substr($file, 1);
-			}
-			if (substr($file, 0, $pathLength) == $path and $file != $path) {
-				$result = substr($file, $pathLength);
-				if ($pos = strpos($result, '/')) {
-					$result = substr($result, 0, $pos + 1);
-				}
-				if (array_search($result, $folderContent) === false) {
-					$folderContent[] = $result;
-				}
-			}
-		}
-		return $folderContent;
-	}
+    /**
+     * get the files in a folder
+     *
+     * @param string $path
+     * @return array
+     */
+    function getFolder($path) {
+        $files = $this->getFiles();
+        $folderContent = array();
+        $pathLength = strlen($path);
+        foreach ($files as $file) {
+            if ($file[0] == '/') {
+                $file = substr($file, 1);
+            }
+            if (substr($file, 0, $pathLength) == $path and $file != $path) {
+                $result = substr($file, $pathLength);
+                if ($pos = strpos($result, '/')) {
+                    $result = substr($result, 0, $pos + 1);
+                }
+                if (array_search($result, $folderContent) === false) {
+                    $folderContent[] = $result;
+                }
+            }
+        }
+        return $folderContent;
+    }
 
-	/**
-	 * get all files in the archive
-	 *
-	 * @return array
-	 */
-	function getFiles() {
-		if ($this->fileList) {
-			return $this->fileList;
-		}
-		if (!$this->cachedHeaders) {
-			$this->cachedHeaders = $this->tar->listContent();
-		}
-		$files = array();
-		foreach ($this->cachedHeaders as $header) {
-			$files[] = $header['filename'];
-		}
-		$this->fileList = $files;
-		return $files;
-	}
+    /**
+     * get all files in the archive
+     *
+     * @return array
+     */
+    function getFiles() {
+        if ($this->fileList) {
+            return $this->fileList;
+        }
+        if (!$this->cachedHeaders) {
+            $this->cachedHeaders = $this->tar->listContent();
+        }
+        $files = array();
+        foreach ($this->cachedHeaders as $header) {
+            $files[] = $header['filename'];
+        }
+        $this->fileList = $files;
+        return $files;
+    }
 
-	/**
-	 * get the content of a file
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	function getFile($path) {
-		return $this->tar->extractInString($path);
-	}
+    /**
+     * get the content of a file
+     *
+     * @param string $path
+     * @return string
+     */
+    function getFile($path) {
+        return $this->tar->extractInString($path);
+    }
 
-	/**
-	 * extract a single file from the archive
-	 *
-	 * @param string $path
-	 * @param string $dest
-	 * @return bool
-	 */
-	function extractFile($path, $dest) {
-		$tmp = \OCP\Files::tmpFolder();
-		if (!$this->fileExists($path)) {
-			return false;
-		}
-		if ($this->fileExists('/' . $path)) {
-			$success = $this->tar->extractList(array('/' . $path), $tmp);
-		} else {
-			$success = $this->tar->extractList(array($path), $tmp);
-		}
-		if ($success) {
-			rename($tmp . $path, $dest);
-		}
-		\OCP\Files::rmdirr($tmp);
-		return $success;
-	}
+    /**
+     * extract a single file from the archive
+     *
+     * @param string $path
+     * @param string $dest
+     * @return bool
+     */
+    function extractFile($path, $dest) {
+        $tmp = \OCP\Files::tmpFolder();
+        if (!$this->fileExists($path)) {
+            return false;
+        }
+        if ($this->fileExists('/' . $path)) {
+            $success = $this->tar->extractList(array('/' . $path), $tmp);
+        } else {
+            $success = $this->tar->extractList(array($path), $tmp);
+        }
+        if ($success) {
+            rename($tmp . $path, $dest);
+        }
+        \OCP\Files::rmdirr($tmp);
+        return $success;
+    }
 
-	/**
-	 * extract the archive
-	 *
-	 * @param string $dest
-	 * @return bool
-	 */
-	function extract($dest) {
-		return $this->tar->extract($dest);
-	}
+    /**
+     * extract the archive
+     *
+     * @param string $dest
+     * @return bool
+     */
+    function extract($dest) {
+        return $this->tar->extract($dest);
+    }
 
-	/**
-	 * check if a file or folder exists in the archive
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	function fileExists($path) {
-		$files = $this->getFiles();
-		if ((array_search($path, $files) !== false) or (array_search($path . '/', $files) !== false)) {
-			return true;
-		} else {
-			$folderPath = $path;
-			if (substr($folderPath, -1, 1) != '/') {
-				$folderPath .= '/';
-			}
-			$pathLength = strlen($folderPath);
-			foreach ($files as $file) {
-				if (strlen($file) > $pathLength and substr($file, 0, $pathLength) == $folderPath) {
-					return true;
-				}
-			}
-		}
-		if ($path[0] != '/') { //not all programs agree on the use of a leading /
-			return $this->fileExists('/' . $path);
-		} else {
-			return false;
-		}
-	}
+    /**
+     * check if a file or folder exists in the archive
+     *
+     * @param string $path
+     * @return bool
+     */
+    function fileExists($path) {
+        $files = $this->getFiles();
+        if ((array_search($path, $files) !== false) or (array_search($path . '/', $files) !== false)) {
+            return true;
+        } else {
+            $folderPath = $path;
+            if (substr($folderPath, -1, 1) != '/') {
+                $folderPath .= '/';
+            }
+            $pathLength = strlen($folderPath);
+            foreach ($files as $file) {
+                if (strlen($file) > $pathLength and substr($file, 0, $pathLength) == $folderPath) {
+                    return true;
+                }
+            }
+        }
+        if ($path[0] != '/') { //not all programs agree on the use of a leading /
+            return $this->fileExists('/' . $path);
+        } else {
+            return false;
+        }
+    }
 
-	/**
-	 * remove a file or folder from the archive
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	function remove($path) {
-		if (!$this->fileExists($path)) {
-			return false;
-		}
-		$this->fileList = false;
-		$this->cachedHeaders = false;
-		//no proper way to delete, extract entire archive, delete file and remake archive
-		$tmp = \OCP\Files::tmpFolder();
-		$this->tar->extract($tmp);
-		\OCP\Files::rmdirr($tmp . $path);
-		$this->tar = null;
-		unlink($this->path);
-		$this->reopen();
-		$this->tar->createModify(array($tmp), '', $tmp);
-		return true;
-	}
+    /**
+     * remove a file or folder from the archive
+     *
+     * @param string $path
+     * @return bool
+     */
+    function remove($path) {
+        if (!$this->fileExists($path)) {
+            return false;
+        }
+        $this->fileList = false;
+        $this->cachedHeaders = false;
+        //no proper way to delete, extract entire archive, delete file and remake archive
+        $tmp = \OCP\Files::tmpFolder();
+        $this->tar->extract($tmp);
+        \OCP\Files::rmdirr($tmp . $path);
+        $this->tar = null;
+        unlink($this->path);
+        $this->reopen();
+        $this->tar->createModify(array($tmp), '', $tmp);
+        return true;
+    }
 
-	/**
-	 * get a file handler
-	 *
-	 * @param string $path
-	 * @param string $mode
-	 * @return resource
-	 */
-	function getStream($path, $mode) {
-		if (strrpos($path, '.') !== false) {
-			$ext = substr($path, strrpos($path, '.'));
-		} else {
-			$ext = '';
-		}
-		$tmpFile = \OCP\Files::tmpFile($ext);
-		if ($this->fileExists($path)) {
-			$this->extractFile($path, $tmpFile);
-		} elseif ($mode == 'r' or $mode == 'rb') {
-			return false;
-		}
-		if ($mode == 'r' or $mode == 'rb') {
-			return fopen($tmpFile, $mode);
-		} else {
-			$handle = fopen($tmpFile, $mode);
-			return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
-				$this->writeBack($tmpFile, $path);
-			});
-		}
-	}
+    /**
+     * get a file handler
+     *
+     * @param string $path
+     * @param string $mode
+     * @return resource
+     */
+    function getStream($path, $mode) {
+        if (strrpos($path, '.') !== false) {
+            $ext = substr($path, strrpos($path, '.'));
+        } else {
+            $ext = '';
+        }
+        $tmpFile = \OCP\Files::tmpFile($ext);
+        if ($this->fileExists($path)) {
+            $this->extractFile($path, $tmpFile);
+        } elseif ($mode == 'r' or $mode == 'rb') {
+            return false;
+        }
+        if ($mode == 'r' or $mode == 'rb') {
+            return fopen($tmpFile, $mode);
+        } else {
+            $handle = fopen($tmpFile, $mode);
+            return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
+                $this->writeBack($tmpFile, $path);
+            });
+        }
+    }
 
-	/**
-	 * write back temporary files
-	 */
-	function writeBack($tmpFile, $path) {
-		$this->addFile($path, $tmpFile);
-		unlink($tmpFile);
-	}
+    /**
+     * write back temporary files
+     */
+    function writeBack($tmpFile, $path) {
+        $this->addFile($path, $tmpFile);
+        unlink($tmpFile);
+    }
 
-	/**
-	 * reopen the archive to ensure everything is written
-	 */
-	private function reopen() {
-		if ($this->tar) {
-			$this->tar->_close();
-			$this->tar = null;
-		}
-		$types = array(null, 'gz', 'bz');
-		$this->tar = new \Archive_Tar($this->path, $types[self::getTarType($this->path)]);
-	}
+    /**
+     * reopen the archive to ensure everything is written
+     */
+    private function reopen() {
+        if ($this->tar) {
+            $this->tar->_close();
+            $this->tar = null;
+        }
+        $types = array(null, 'gz', 'bz');
+        $this->tar = new \Archive_Tar($this->path, $types[self::getTarType($this->path)]);
+    }
 }

Spacing +15 added lines, -15 removed lines

@@ -101,13 +101,13 @@ 
 		$parts = explode('/', $path);
 		$folder = $tmpBase;
 		foreach ($parts as $part) {
-			$folder .= '/' . $part;
+			$folder .= '/'.$part;
 			if (!is_dir($folder)) {
 				mkdir($folder);
 			}
 		}
-		$result = $this->tar->addModify(array($tmpBase . $path), '', $tmpBase);
-		rmdir($tmpBase . $path);
+		$result = $this->tar->addModify(array($tmpBase.$path), '', $tmpBase);
+		rmdir($tmpBase.$path);
 		$this->fileList = false;
 		$this->cachedHeaders = false;
 		return $result;
@@ -144,12 +144,12 @@ 
 		//no proper way to delete, rename entire archive, rename file and remake archive
 		$tmp = \OCP\Files::tmpFolder();
 		$this->tar->extract($tmp);
-		rename($tmp . $source, $tmp . $dest);
+		rename($tmp.$source, $tmp.$dest);
 		$this->tar = null;
 		unlink($this->path);
 		$types = array(null, 'gz', 'bz');
 		$this->tar = new \Archive_Tar($this->path, $types[self::getTarType($this->path)]);
-		$this->tar->createModify(array($tmp), '', $tmp . '/');
+		$this->tar->createModify(array($tmp), '', $tmp.'/');
 		$this->fileList = false;
 		$this->cachedHeaders = false;
 		return true;
@@ -164,9 +164,9 @@ 
 		}
 		foreach ($this->cachedHeaders as $header) {
 			if ($file == $header['filename']
-				or $file . '/' == $header['filename']
-				or '/' . $file . '/' == $header['filename']
-				or '/' . $file == $header['filename']
+				or $file.'/' == $header['filename']
+				or '/'.$file.'/' == $header['filename']
+				or '/'.$file == $header['filename']
 			) {
 				return $header;
 			}
@@ -265,13 +265,13 @@ 
 		if (!$this->fileExists($path)) {
 			return false;
 		}
-		if ($this->fileExists('/' . $path)) {
-			$success = $this->tar->extractList(array('/' . $path), $tmp);
+		if ($this->fileExists('/'.$path)) {
+			$success = $this->tar->extractList(array('/'.$path), $tmp);
 		} else {
 			$success = $this->tar->extractList(array($path), $tmp);
 		}
 		if ($success) {
-			rename($tmp . $path, $dest);
+			rename($tmp.$path, $dest);
 		}
 		\OCP\Files::rmdirr($tmp);
 		return $success;
@@ -295,7 +295,7 @@ 
 	 */
 	function fileExists($path) {
 		$files = $this->getFiles();
-		if ((array_search($path, $files) !== false) or (array_search($path . '/', $files) !== false)) {
+		if ((array_search($path, $files) !== false) or (array_search($path.'/', $files) !== false)) {
 			return true;
 		} else {
 			$folderPath = $path;
@@ -310,7 +310,7 @@ 
 			}
 		}
 		if ($path[0] != '/') { //not all programs agree on the use of a leading /
-			return $this->fileExists('/' . $path);
+			return $this->fileExists('/'.$path);
 		} else {
 			return false;
 		}
@@ -331,7 +331,7 @@ 
 		//no proper way to delete, extract entire archive, delete file and remake archive
 		$tmp = \OCP\Files::tmpFolder();
 		$this->tar->extract($tmp);
-		\OCP\Files::rmdirr($tmp . $path);
+		\OCP\Files::rmdirr($tmp.$path);
 		$this->tar = null;
 		unlink($this->path);
 		$this->reopen();
@@ -362,7 +362,7 @@ 
 			return fopen($tmpFile, $mode);
 		} else {
 			$handle = fopen($tmpFile, $mode);
-			return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
+			return CallbackWrapper::wrap($handle, null, null, function() use ($path, $tmpFile) {
 				$this->writeBack($tmpFile, $path);
 			});
 		}

lib/private/Files/ObjectStore/ObjectStoreStorage.php

Doc Comments +6 added lines

@@ -162,6 +162,9 @@ 
 		return true;
 	}
 
+	/**
+	 * @param string $path
+	 */
 	private function rmObjects($path) {
 		$children = $this->getCache()->getFolderContents($path);
 		foreach ($children as $child) {
@@ -364,6 +367,9 @@ 
 		return true;
 	}
 
+	/**
+	 * @param string $path
+	 */
 	public function writeBack($tmpFile, $path) {
 		$stat = $this->stat($path);
 		if (empty($stat)) {

Indentation +370 added lines, -370 removed lines

@@ -31,374 +31,374 @@
 use OCP\Files\ObjectStore\IObjectStore;
 
 class ObjectStoreStorage extends \OC\Files\Storage\Common {
-	/**
-	 * @var \OCP\Files\ObjectStore\IObjectStore $objectStore
-	 */
-	protected $objectStore;
-	/**
-	 * @var string $id
-	 */
-	protected $id;
-	/**
-	 * @var \OC\User\User $user
-	 */
-	protected $user;
-
-	private $objectPrefix = 'urn:oid:';
-
-	public function __construct($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('/')) {
-			$this->mkdir('/');
-		}
-	}
-
-	public function mkdir($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($parent)) {
-					// something went wrong
-					return false;
-				}
-			} else if ($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;
-		}
-
-		$this->rmObjects($path);
-
-		$this->getCache()->remove($path);
-
-		return true;
-	}
-
-	private function rmObjects($path) {
-		$children = $this->getCache()->getFolderContents($path);
-		foreach ($children as $child) {
-			if ($child['mimetype'] === 'httpd/unix-directory') {
-				$this->rmObjects($child['path']);
-			} else {
-				$this->unlink($child['path']);
-			}
-		}
-	}
-
-	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) {
-					\OCP\Util::writeLog('objectstore', 'Could not delete object: ' . $ex->getMessage(), \OCP\Util::ERROR);
-					return false;
-				} else {
-					//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;
-		}
-	}
-
-	/**
-	 * 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 $fileId the fileid
-	 * @return null|string the unified resource name used to identify the object
-	 */
-	protected function getURN($fileId) {
-		if (is_numeric($fileId)) {
-			return $this->objectPrefix . $fileId;
-		}
-		return null;
-	}
-
-	public function opendir($path) {
-		$path = $this->normalizePath($path);
-
-		try {
-			$files = array();
-			$folderContents = $this->getCache()->getFolderContents($path);
-			foreach ($folderContents as $file) {
-				$files[] = $file['name'];
-			}
-
-			return IteratorDirectory::wrap($files);
-		} catch (\Exception $e) {
-			\OCP\Util::writeLog('objectstore', $e->getMessage(), \OCP\Util::ERROR);
-			return false;
-		}
-	}
-
-	public function filetype($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);
-
-		switch ($mode) {
-			case 'r':
-			case 'rb':
-				$stat = $this->stat($path);
-				if (is_array($stat)) {
-					try {
-						return $this->objectStore->readObject($this->getURN($stat['fileid']));
-					} catch (\Exception $ex) {
-						\OCP\Util::writeLog('objectstore', 'Could not get object: ' . $ex->getMessage(), \OCP\Util::ERROR);
-						return false;
-					}
-				} else {
-					return false;
-				}
-			case 'w':
-			case 'wb':
-			case 'a':
-			case 'ab':
-			case 'r+':
-			case 'w+':
-			case 'wb+':
-			case 'a+':
-			case 'x':
-			case 'x+':
-			case 'c':
-			case 'c+':
-				if (strrpos($path, '.') !== false) {
-					$ext = substr($path, strrpos($path, '.'));
-				} else {
-					$ext = '';
-				}
-				$tmpFile = \OC::$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);
-		$stat = $this->stat($path);
-		if (is_array($stat)) {
-			return $stat['mimetype'];
-		} else {
-			return false;
-		}
-	}
-
-	public function touch($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 {
-			$mimeType = \OC::$server->getMimeTypeDetector()->detectPath($path);
-			// create new file
-			$stat = array(
-				'etag' => $this->getETag($path),
-				'mimetype' => $mimeType,
-				'size' => 0,
-				'mtime' => $mtime,
-				'storage_mtime' => $mtime,
-				'permissions' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_CREATE,
-			);
-			$fileId = $this->getCache()->put($path, $stat);
-			try {
-				//read an empty file from memory
-				$this->objectStore->writeObject($this->getURN($fileId), fopen('php://memory', 'r'));
-			} catch (\Exception $ex) {
-				$this->getCache()->remove($path);
-				\OCP\Util::writeLog('objectstore', 'Could not create object: ' . $ex->getMessage(), \OCP\Util::ERROR);
-				return false;
-			}
-		}
-		return true;
-	}
-
-	public function writeBack($tmpFile, $path) {
-		$stat = $this->stat($path);
-		if (empty($stat)) {
-			// create new file
-			$stat = array(
-				'permissions' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_CREATE,
-			);
-		}
-		// update stat with new data
-		$mTime = time();
-		$stat['size'] = filesize($tmpFile);
-		$stat['mtime'] = $mTime;
-		$stat['storage_mtime'] = $mTime;
-		$stat['mimetype'] = \OC::$server->getMimeTypeDetector()->detect($tmpFile);
-		$stat['etag'] = $this->getETag($path);
-
-		$fileId = $this->getCache()->put($path, $stat);
-		try {
-			//upload to object storage
-			$this->objectStore->writeObject($this->getURN($fileId), fopen($tmpFile, 'r'));
-		} catch (\Exception $ex) {
-			$this->getCache()->remove($path);
-			\OCP\Util::writeLog('objectstore', 'Could not create object: ' . $ex->getMessage(), \OCP\Util::ERROR);
-			throw $ex; // make this bubble up
-		}
-	}
-
-	/**
-	 * 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;
-	}
+    /**
+     * @var \OCP\Files\ObjectStore\IObjectStore $objectStore
+     */
+    protected $objectStore;
+    /**
+     * @var string $id
+     */
+    protected $id;
+    /**
+     * @var \OC\User\User $user
+     */
+    protected $user;
+
+    private $objectPrefix = 'urn:oid:';
+
+    public function __construct($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('/')) {
+            $this->mkdir('/');
+        }
+    }
+
+    public function mkdir($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($parent)) {
+                    // something went wrong
+                    return false;
+                }
+            } else if ($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;
+        }
+
+        $this->rmObjects($path);
+
+        $this->getCache()->remove($path);
+
+        return true;
+    }
+
+    private function rmObjects($path) {
+        $children = $this->getCache()->getFolderContents($path);
+        foreach ($children as $child) {
+            if ($child['mimetype'] === 'httpd/unix-directory') {
+                $this->rmObjects($child['path']);
+            } else {
+                $this->unlink($child['path']);
+            }
+        }
+    }
+
+    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) {
+                    \OCP\Util::writeLog('objectstore', 'Could not delete object: ' . $ex->getMessage(), \OCP\Util::ERROR);
+                    return false;
+                } else {
+                    //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;
+        }
+    }
+
+    /**
+     * 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 $fileId the fileid
+     * @return null|string the unified resource name used to identify the object
+     */
+    protected function getURN($fileId) {
+        if (is_numeric($fileId)) {
+            return $this->objectPrefix . $fileId;
+        }
+        return null;
+    }
+
+    public function opendir($path) {
+        $path = $this->normalizePath($path);
+
+        try {
+            $files = array();
+            $folderContents = $this->getCache()->getFolderContents($path);
+            foreach ($folderContents as $file) {
+                $files[] = $file['name'];
+            }
+
+            return IteratorDirectory::wrap($files);
+        } catch (\Exception $e) {
+            \OCP\Util::writeLog('objectstore', $e->getMessage(), \OCP\Util::ERROR);
+            return false;
+        }
+    }
+
+    public function filetype($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);
+
+        switch ($mode) {
+            case 'r':
+            case 'rb':
+                $stat = $this->stat($path);
+                if (is_array($stat)) {
+                    try {
+                        return $this->objectStore->readObject($this->getURN($stat['fileid']));
+                    } catch (\Exception $ex) {
+                        \OCP\Util::writeLog('objectstore', 'Could not get object: ' . $ex->getMessage(), \OCP\Util::ERROR);
+                        return false;
+                    }
+                } else {
+                    return false;
+                }
+            case 'w':
+            case 'wb':
+            case 'a':
+            case 'ab':
+            case 'r+':
+            case 'w+':
+            case 'wb+':
+            case 'a+':
+            case 'x':
+            case 'x+':
+            case 'c':
+            case 'c+':
+                if (strrpos($path, '.') !== false) {
+                    $ext = substr($path, strrpos($path, '.'));
+                } else {
+                    $ext = '';
+                }
+                $tmpFile = \OC::$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);
+        $stat = $this->stat($path);
+        if (is_array($stat)) {
+            return $stat['mimetype'];
+        } else {
+            return false;
+        }
+    }
+
+    public function touch($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 {
+            $mimeType = \OC::$server->getMimeTypeDetector()->detectPath($path);
+            // create new file
+            $stat = array(
+                'etag' => $this->getETag($path),
+                'mimetype' => $mimeType,
+                'size' => 0,
+                'mtime' => $mtime,
+                'storage_mtime' => $mtime,
+                'permissions' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_CREATE,
+            );
+            $fileId = $this->getCache()->put($path, $stat);
+            try {
+                //read an empty file from memory
+                $this->objectStore->writeObject($this->getURN($fileId), fopen('php://memory', 'r'));
+            } catch (\Exception $ex) {
+                $this->getCache()->remove($path);
+                \OCP\Util::writeLog('objectstore', 'Could not create object: ' . $ex->getMessage(), \OCP\Util::ERROR);
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public function writeBack($tmpFile, $path) {
+        $stat = $this->stat($path);
+        if (empty($stat)) {
+            // create new file
+            $stat = array(
+                'permissions' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_CREATE,
+            );
+        }
+        // update stat with new data
+        $mTime = time();
+        $stat['size'] = filesize($tmpFile);
+        $stat['mtime'] = $mTime;
+        $stat['storage_mtime'] = $mTime;
+        $stat['mimetype'] = \OC::$server->getMimeTypeDetector()->detect($tmpFile);
+        $stat['etag'] = $this->getETag($path);
+
+        $fileId = $this->getCache()->put($path, $stat);
+        try {
+            //upload to object storage
+            $this->objectStore->writeObject($this->getURN($fileId), fopen($tmpFile, 'r'));
+        } catch (\Exception $ex) {
+            $this->getCache()->remove($path);
+            \OCP\Util::writeLog('objectstore', 'Could not create object: ' . $ex->getMessage(), \OCP\Util::ERROR);
+            throw $ex; // make this bubble up
+        }
+    }
+
+    /**
+     * 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;
+    }
 }

Spacing +9 added lines, -9 removed lines

@@ -53,9 +53,9 @@ 
 			throw new \Exception('missing IObjectStore instance');
 		}
 		if (isset($params['storageid'])) {
-			$this->id = 'object::store:' . $params['storageid'];
+			$this->id = 'object::store:'.$params['storageid'];
 		} else {
-			$this->id = 'object::store:' . $this->objectStore->getStorageId();
+			$this->id = 'object::store:'.$this->objectStore->getStorageId();
 		}
 		if (isset($params['objectPrefix'])) {
 			$this->objectPrefix = $params['objectPrefix'];
@@ -185,7 +185,7 @@ 
 				$this->objectStore->deleteObject($this->getURN($stat['fileid']));
 			} catch (\Exception $ex) {
 				if ($ex->getCode() !== 404) {
-					\OCP\Util::writeLog('objectstore', 'Could not delete object: ' . $ex->getMessage(), \OCP\Util::ERROR);
+					\OCP\Util::writeLog('objectstore', 'Could not delete object: '.$ex->getMessage(), \OCP\Util::ERROR);
 					return false;
 				} else {
 					//removing from cache is ok as it does not exist in the objectstore anyway
@@ -217,7 +217,7 @@ 
 	 */
 	protected function getURN($fileId) {
 		if (is_numeric($fileId)) {
-			return $this->objectPrefix . $fileId;
+			return $this->objectPrefix.$fileId;
 		}
 		return null;
 	}
@@ -263,7 +263,7 @@ 
 					try {
 						return $this->objectStore->readObject($this->getURN($stat['fileid']));
 					} catch (\Exception $ex) {
-						\OCP\Util::writeLog('objectstore', 'Could not get object: ' . $ex->getMessage(), \OCP\Util::ERROR);
+						\OCP\Util::writeLog('objectstore', 'Could not get object: '.$ex->getMessage(), \OCP\Util::ERROR);
 						return false;
 					}
 				} else {
@@ -292,7 +292,7 @@ 
 					file_put_contents($tmpFile, $source);
 				}
 				$handle = fopen($tmpFile, $mode);
-				return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
+				return CallbackWrapper::wrap($handle, null, null, function() use ($path, $tmpFile) {
 					$this->writeBack($tmpFile, $path);
 				});
 		}
@@ -301,7 +301,7 @@ 
 
 	public function file_exists($path) {
 		$path = $this->normalizePath($path);
-		return (bool)$this->stat($path);
+		return (bool) $this->stat($path);
 	}
 
 	public function rename($source, $target) {
@@ -357,7 +357,7 @@ 
 				$this->objectStore->writeObject($this->getURN($fileId), fopen('php://memory', 'r'));
 			} catch (\Exception $ex) {
 				$this->getCache()->remove($path);
-				\OCP\Util::writeLog('objectstore', 'Could not create object: ' . $ex->getMessage(), \OCP\Util::ERROR);
+				\OCP\Util::writeLog('objectstore', 'Could not create object: '.$ex->getMessage(), \OCP\Util::ERROR);
 				return false;
 			}
 		}
@@ -386,7 +386,7 @@ 
 			$this->objectStore->writeObject($this->getURN($fileId), fopen($tmpFile, 'r'));
 		} catch (\Exception $ex) {
 			$this->getCache()->remove($path);
-			\OCP\Util::writeLog('objectstore', 'Could not create object: ' . $ex->getMessage(), \OCP\Util::ERROR);
+			\OCP\Util::writeLog('objectstore', 'Could not create object: '.$ex->getMessage(), \OCP\Util::ERROR);
 			throw $ex; // make this bubble up
 		}
 	}

lib/private/Files/Storage/DAV.php

Unused Use Statements -1 removed lines

@@ -38,7 +38,6 @@
 use GuzzleHttp\Message\ResponseInterface;
 use Icewind\Streams\CallbackWrapper;
 use OC\Files\Filesystem;
-use OC\Files\Stream\Close;
 use Icewind\Streams\IteratorDirectory;
 use OC\MemCache\ArrayCache;
 use OCP\AppFramework\Http;

Braces +5 added lines, -2 removed lines

@@ -90,8 +90,11 @@
 		if (isset($params['host']) && isset($params['user']) && isset($params['password'])) {
 			$host = $params['host'];
 			//remove leading http[s], will be generated in createBaseUri()
-			if (substr($host, 0, 8) == "https://") $host = substr($host, 8);
-			else if (substr($host, 0, 7) == "http://") $host = substr($host, 7);
+			if (substr($host, 0, 8) == "https://") {
+			    $host = substr($host, 8);
+			} else if (substr($host, 0, 7) == "http://") {
+			    $host = substr($host, 7);
+			}
 			$this->host = $host;
 			$this->user = $params['user'];
 			$this->password = $params['password'];

Indentation +793 added lines, -793 removed lines

@@ -59,798 +59,798 @@
  * @package OC\Files\Storage
  */
 class DAV extends Common {
-	/** @var string */
-	protected $password;
-	/** @var string */
-	protected $user;
-	/** @var string */
-	protected $authType;
-	/** @var string */
-	protected $host;
-	/** @var bool */
-	protected $secure;
-	/** @var string */
-	protected $root;
-	/** @var string */
-	protected $certPath;
-	/** @var bool */
-	protected $ready;
-	/** @var Client */
-	protected $client;
-	/** @var ArrayCache */
-	protected $statCache;
-	/** @var \OCP\Http\Client\IClientService */
-	protected $httpClientService;
-
-	/**
-	 * @param array $params
-	 * @throws \Exception
-	 */
-	public function __construct($params) {
-		$this->statCache = new ArrayCache();
-		$this->httpClientService = \OC::$server->getHTTPClientService();
-		if (isset($params['host']) && isset($params['user']) && isset($params['password'])) {
-			$host = $params['host'];
-			//remove leading http[s], will be generated in createBaseUri()
-			if (substr($host, 0, 8) == "https://") $host = substr($host, 8);
-			else if (substr($host, 0, 7) == "http://") $host = substr($host, 7);
-			$this->host = $host;
-			$this->user = $params['user'];
-			$this->password = $params['password'];
-			if (isset($params['authType'])) {
-				$this->authType = $params['authType'];
-			}
-			if (isset($params['secure'])) {
-				if (is_string($params['secure'])) {
-					$this->secure = ($params['secure'] === 'true');
-				} else {
-					$this->secure = (bool)$params['secure'];
-				}
-			} else {
-				$this->secure = false;
-			}
-			if ($this->secure === true) {
-				// inject mock for testing
-				$certManager = \OC::$server->getCertificateManager();
-				if (is_null($certManager)) { //no user
-					$certManager = \OC::$server->getCertificateManager(null);
-				}
-				$certPath = $certManager->getAbsoluteBundlePath();
-				if (file_exists($certPath)) {
-					$this->certPath = $certPath;
-				}
-			}
-			$this->root = isset($params['root']) ? $params['root'] : '/';
-			if (!$this->root || $this->root[0] != '/') {
-				$this->root = '/' . $this->root;
-			}
-			if (substr($this->root, -1, 1) != '/') {
-				$this->root .= '/';
-			}
-		} else {
-			throw new \Exception('Invalid webdav storage configuration');
-		}
-	}
-
-	protected function init() {
-		if ($this->ready) {
-			return;
-		}
-		$this->ready = true;
-
-		$settings = [
-			'baseUri' => $this->createBaseUri(),
-			'userName' => $this->user,
-			'password' => $this->password,
-		];
-		if (isset($this->authType)) {
-			$settings['authType'] = $this->authType;
-		}
-
-		$proxy = \OC::$server->getConfig()->getSystemValue('proxy', '');
-		if($proxy !== '') {
-			$settings['proxy'] = $proxy;
-		}
-
-		$this->client = new Client($settings);
-		$this->client->setThrowExceptions(true);
-		if ($this->secure === true && $this->certPath) {
-			$this->client->addCurlSetting(CURLOPT_CAINFO, $this->certPath);
-		}
-	}
-
-	/**
-	 * Clear the stat cache
-	 */
-	public function clearStatCache() {
-		$this->statCache->clear();
-	}
-
-	/** {@inheritdoc} */
-	public function getId() {
-		return 'webdav::' . $this->user . '@' . $this->host . '/' . $this->root;
-	}
-
-	/** {@inheritdoc} */
-	public function createBaseUri() {
-		$baseUri = 'http';
-		if ($this->secure) {
-			$baseUri .= 's';
-		}
-		$baseUri .= '://' . $this->host . $this->root;
-		return $baseUri;
-	}
-
-	/** {@inheritdoc} */
-	public function mkdir($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		$result = $this->simpleResponse('MKCOL', $path, null, 201);
-		if ($result) {
-			$this->statCache->set($path, true);
-		}
-		return $result;
-	}
-
-	/** {@inheritdoc} */
-	public function rmdir($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		// FIXME: some WebDAV impl return 403 when trying to DELETE
-		// a non-empty folder
-		$result = $this->simpleResponse('DELETE', $path . '/', null, 204);
-		$this->statCache->clear($path . '/');
-		$this->statCache->remove($path);
-		return $result;
-	}
-
-	/** {@inheritdoc} */
-	public function opendir($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		try {
-			$response = $this->client->propFind(
-				$this->encodePath($path),
-				['{DAV:}href'],
-				1
-			);
-			if ($response === false) {
-				return false;
-			}
-			$content = [];
-			$files = array_keys($response);
-			array_shift($files); //the first entry is the current directory
-
-			if (!$this->statCache->hasKey($path)) {
-				$this->statCache->set($path, true);
-			}
-			foreach ($files as $file) {
-				$file = urldecode($file);
-				// do not store the real entry, we might not have all properties
-				if (!$this->statCache->hasKey($path)) {
-					$this->statCache->set($file, true);
-				}
-				$file = basename($file);
-				$content[] = $file;
-			}
-			return IteratorDirectory::wrap($content);
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/**
-	 * Propfind call with cache handling.
-	 *
-	 * First checks if information is cached.
-	 * If not, request it from the server then store to cache.
-	 *
-	 * @param string $path path to propfind
-	 *
-	 * @return array|boolean propfind response or false if the entry was not found
-	 *
-	 * @throws ClientHttpException
-	 */
-	protected function propfind($path) {
-		$path = $this->cleanPath($path);
-		$cachedResponse = $this->statCache->get($path);
-		// we either don't know it, or we know it exists but need more details
-		if (is_null($cachedResponse) || $cachedResponse === true) {
-			$this->init();
-			try {
-				$response = $this->client->propFind(
-					$this->encodePath($path),
-					array(
-						'{DAV:}getlastmodified',
-						'{DAV:}getcontentlength',
-						'{DAV:}getcontenttype',
-						'{http://owncloud.org/ns}permissions',
-						'{http://open-collaboration-services.org/ns}share-permissions',
-						'{DAV:}resourcetype',
-						'{DAV:}getetag',
-					)
-				);
-				$this->statCache->set($path, $response);
-			} catch (ClientHttpException $e) {
-				if ($e->getHttpStatus() === 404) {
-					$this->statCache->clear($path . '/');
-					$this->statCache->set($path, false);
-					return false;
-				}
-				$this->convertException($e, $path);
-			} catch (\Exception $e) {
-				$this->convertException($e, $path);
-			}
-		} else {
-			$response = $cachedResponse;
-		}
-		return $response;
-	}
-
-	/** {@inheritdoc} */
-	public function filetype($path) {
-		try {
-			$response = $this->propfind($path);
-			if ($response === false) {
-				return false;
-			}
-			$responseType = [];
-			if (isset($response["{DAV:}resourcetype"])) {
-				/** @var ResourceType[] $response */
-				$responseType = $response["{DAV:}resourcetype"]->getValue();
-			}
-			return (count($responseType) > 0 and $responseType[0] == "{DAV:}collection") ? 'dir' : 'file';
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/** {@inheritdoc} */
-	public function file_exists($path) {
-		try {
-			$path = $this->cleanPath($path);
-			$cachedState = $this->statCache->get($path);
-			if ($cachedState === false) {
-				// we know the file doesn't exist
-				return false;
-			} else if (!is_null($cachedState)) {
-				return true;
-			}
-			// need to get from server
-			return ($this->propfind($path) !== false);
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/** {@inheritdoc} */
-	public function unlink($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		$result = $this->simpleResponse('DELETE', $path, null, 204);
-		$this->statCache->clear($path . '/');
-		$this->statCache->remove($path);
-		return $result;
-	}
-
-	/** {@inheritdoc} */
-	public function fopen($path, $mode) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		switch ($mode) {
-			case 'r':
-			case 'rb':
-				try {
-					$response = $this->httpClientService
-							->newClient()
-							->get($this->createBaseUri() . $this->encodePath($path), [
-									'auth' => [$this->user, $this->password],
-									'stream' => true
-							]);
-				} catch (RequestException $e) {
-					if ($e->getResponse() instanceof ResponseInterface
-						&& $e->getResponse()->getStatusCode() === 404) {
-						return false;
-					} else {
-						throw $e;
-					}
-				}
-
-				if ($response->getStatusCode() !== Http::STATUS_OK) {
-					if ($response->getStatusCode() === Http::STATUS_LOCKED) {
-						throw new \OCP\Lock\LockedException($path);
-					} else {
-						Util::writeLog("webdav client", 'Guzzle get returned status code ' . $response->getStatusCode(), Util::ERROR);
-					}
-				}
-
-				return $response->getBody();
-			case 'w':
-			case 'wb':
-			case 'a':
-			case 'ab':
-			case 'r+':
-			case 'w+':
-			case 'wb+':
-			case 'a+':
-			case 'x':
-			case 'x+':
-			case 'c':
-			case 'c+':
-				//emulate these
-				$tempManager = \OC::$server->getTempManager();
-				if (strrpos($path, '.') !== false) {
-					$ext = substr($path, strrpos($path, '.'));
-				} else {
-					$ext = '';
-				}
-				if ($this->file_exists($path)) {
-					if (!$this->isUpdatable($path)) {
-						return false;
-					}
-					if ($mode === 'w' or $mode === 'w+') {
-						$tmpFile = $tempManager->getTemporaryFile($ext);
-					} else {
-						$tmpFile = $this->getCachedFile($path);
-					}
-				} else {
-					if (!$this->isCreatable(dirname($path))) {
-						return false;
-					}
-					$tmpFile = $tempManager->getTemporaryFile($ext);
-				}
-				$handle = fopen($tmpFile, $mode);
-				return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
-					$this->writeBack($tmpFile, $path);
-				});
-		}
-	}
-
-	/**
-	 * @param string $tmpFile
-	 */
-	public function writeBack($tmpFile, $path) {
-		$this->uploadFile($tmpFile, $path);
-		unlink($tmpFile);
-	}
-
-	/** {@inheritdoc} */
-	public function free_space($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		try {
-			// TODO: cacheable ?
-			$response = $this->client->propfind($this->encodePath($path), ['{DAV:}quota-available-bytes']);
-			if ($response === false) {
-				return FileInfo::SPACE_UNKNOWN;
-			}
-			if (isset($response['{DAV:}quota-available-bytes'])) {
-				return (int)$response['{DAV:}quota-available-bytes'];
-			} else {
-				return FileInfo::SPACE_UNKNOWN;
-			}
-		} catch (\Exception $e) {
-			return FileInfo::SPACE_UNKNOWN;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function touch($path, $mtime = null) {
-		$this->init();
-		if (is_null($mtime)) {
-			$mtime = time();
-		}
-		$path = $this->cleanPath($path);
-
-		// if file exists, update the mtime, else create a new empty file
-		if ($this->file_exists($path)) {
-			try {
-				$this->statCache->remove($path);
-				$this->client->proppatch($this->encodePath($path), ['{DAV:}lastmodified' => $mtime]);
-				// non-owncloud clients might not have accepted the property, need to recheck it
-				$response = $this->client->propfind($this->encodePath($path), ['{DAV:}getlastmodified'], 0);
-				if ($response === false) {
-					return false;
-				}
-				if (isset($response['{DAV:}getlastmodified'])) {
-					$remoteMtime = strtotime($response['{DAV:}getlastmodified']);
-					if ($remoteMtime !== $mtime) {
-						// server has not accepted the mtime
-						return false;
-					}
-				}
-			} catch (ClientHttpException $e) {
-				if ($e->getHttpStatus() === 501) {
-					return false;
-				}
-				$this->convertException($e, $path);
-				return false;
-			} catch (\Exception $e) {
-				$this->convertException($e, $path);
-				return false;
-			}
-		} else {
-			$this->file_put_contents($path, '');
-		}
-		return true;
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $data
-	 * @return int
-	 */
-	public function file_put_contents($path, $data) {
-		$path = $this->cleanPath($path);
-		$result = parent::file_put_contents($path, $data);
-		$this->statCache->remove($path);
-		return $result;
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $target
-	 */
-	protected function uploadFile($path, $target) {
-		$this->init();
-
-		// invalidate
-		$target = $this->cleanPath($target);
-		$this->statCache->remove($target);
-		$source = fopen($path, 'r');
-
-		$this->httpClientService
-			->newClient()
-			->put($this->createBaseUri() . $this->encodePath($target), [
-				'body' => $source,
-				'auth' => [$this->user, $this->password]
-			]);
-
-		$this->removeCachedFile($target);
-	}
-
-	/** {@inheritdoc} */
-	public function rename($path1, $path2) {
-		$this->init();
-		$path1 = $this->cleanPath($path1);
-		$path2 = $this->cleanPath($path2);
-		try {
-			// overwrite directory ?
-			if ($this->is_dir($path2)) {
-				// needs trailing slash in destination
-				$path2 = rtrim($path2, '/') . '/';
-			}
-			$this->client->request(
-				'MOVE',
-				$this->encodePath($path1),
-				null,
-				[
-					'Destination' => $this->createBaseUri() . $this->encodePath($path2),
-				]
-			);
-			$this->statCache->clear($path1 . '/');
-			$this->statCache->clear($path2 . '/');
-			$this->statCache->set($path1, false);
-			$this->statCache->set($path2, true);
-			$this->removeCachedFile($path1);
-			$this->removeCachedFile($path2);
-			return true;
-		} catch (\Exception $e) {
-			$this->convertException($e);
-		}
-		return false;
-	}
-
-	/** {@inheritdoc} */
-	public function copy($path1, $path2) {
-		$this->init();
-		$path1 = $this->cleanPath($path1);
-		$path2 = $this->cleanPath($path2);
-		try {
-			// overwrite directory ?
-			if ($this->is_dir($path2)) {
-				// needs trailing slash in destination
-				$path2 = rtrim($path2, '/') . '/';
-			}
-			$this->client->request(
-				'COPY',
-				$this->encodePath($path1),
-				null,
-				[
-					'Destination' => $this->createBaseUri() . $this->encodePath($path2),
-				]
-			);
-			$this->statCache->clear($path2 . '/');
-			$this->statCache->set($path2, true);
-			$this->removeCachedFile($path2);
-			return true;
-		} catch (\Exception $e) {
-			$this->convertException($e);
-		}
-		return false;
-	}
-
-	/** {@inheritdoc} */
-	public function stat($path) {
-		try {
-			$response = $this->propfind($path);
-			if (!$response) {
-				return false;
-			}
-			return [
-				'mtime' => strtotime($response['{DAV:}getlastmodified']),
-				'size' => (int)isset($response['{DAV:}getcontentlength']) ? $response['{DAV:}getcontentlength'] : 0,
-			];
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return array();
-	}
-
-	/** {@inheritdoc} */
-	public function getMimeType($path) {
-		try {
-			$response = $this->propfind($path);
-			if ($response === false) {
-				return false;
-			}
-			$responseType = [];
-			if (isset($response["{DAV:}resourcetype"])) {
-				/** @var ResourceType[] $response */
-				$responseType = $response["{DAV:}resourcetype"]->getValue();
-			}
-			$type = (count($responseType) > 0 and $responseType[0] == "{DAV:}collection") ? 'dir' : 'file';
-			if ($type == 'dir') {
-				return 'httpd/unix-directory';
-			} elseif (isset($response['{DAV:}getcontenttype'])) {
-				return $response['{DAV:}getcontenttype'];
-			} else {
-				return false;
-			}
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	public function cleanPath($path) {
-		if ($path === '') {
-			return $path;
-		}
-		$path = Filesystem::normalizePath($path);
-		// remove leading slash
-		return substr($path, 1);
-	}
-
-	/**
-	 * URL encodes the given path but keeps the slashes
-	 *
-	 * @param string $path to encode
-	 * @return string encoded path
-	 */
-	protected function encodePath($path) {
-		// slashes need to stay
-		return str_replace('%2F', '/', rawurlencode($path));
-	}
-
-	/**
-	 * @param string $method
-	 * @param string $path
-	 * @param string|resource|null $body
-	 * @param int $expected
-	 * @return bool
-	 * @throws StorageInvalidException
-	 * @throws StorageNotAvailableException
-	 */
-	protected function simpleResponse($method, $path, $body, $expected) {
-		$path = $this->cleanPath($path);
-		try {
-			$response = $this->client->request($method, $this->encodePath($path), $body);
-			return $response['statusCode'] == $expected;
-		} catch (ClientHttpException $e) {
-			if ($e->getHttpStatus() === 404 && $method === 'DELETE') {
-				$this->statCache->clear($path . '/');
-				$this->statCache->set($path, false);
-				return false;
-			}
-
-			$this->convertException($e, $path);
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/**
-	 * check if curl is installed
-	 */
-	public static function checkDependencies() {
-		return true;
-	}
-
-	/** {@inheritdoc} */
-	public function isUpdatable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_UPDATE);
-	}
-
-	/** {@inheritdoc} */
-	public function isCreatable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_CREATE);
-	}
-
-	/** {@inheritdoc} */
-	public function isSharable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_SHARE);
-	}
-
-	/** {@inheritdoc} */
-	public function isDeletable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_DELETE);
-	}
-
-	/** {@inheritdoc} */
-	public function getPermissions($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		$response = $this->propfind($path);
-		if ($response === false) {
-			return 0;
-		}
-		if (isset($response['{http://owncloud.org/ns}permissions'])) {
-			return $this->parsePermissions($response['{http://owncloud.org/ns}permissions']);
-		} else if ($this->is_dir($path)) {
-			return Constants::PERMISSION_ALL;
-		} else if ($this->file_exists($path)) {
-			return Constants::PERMISSION_ALL - Constants::PERMISSION_CREATE;
-		} else {
-			return 0;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function getETag($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		$response = $this->propfind($path);
-		if ($response === false) {
-			return null;
-		}
-		if (isset($response['{DAV:}getetag'])) {
-			return trim($response['{DAV:}getetag'], '"');
-		}
-		return parent::getEtag($path);
-	}
-
-	/**
-	 * @param string $permissionsString
-	 * @return int
-	 */
-	protected function parsePermissions($permissionsString) {
-		$permissions = Constants::PERMISSION_READ;
-		if (strpos($permissionsString, 'R') !== false) {
-			$permissions |= Constants::PERMISSION_SHARE;
-		}
-		if (strpos($permissionsString, 'D') !== false) {
-			$permissions |= Constants::PERMISSION_DELETE;
-		}
-		if (strpos($permissionsString, 'W') !== false) {
-			$permissions |= Constants::PERMISSION_UPDATE;
-		}
-		if (strpos($permissionsString, 'CK') !== false) {
-			$permissions |= Constants::PERMISSION_CREATE;
-			$permissions |= Constants::PERMISSION_UPDATE;
-		}
-		return $permissions;
-	}
-
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @throws \OCP\Files\StorageNotAvailableException
-	 * @return bool
-	 */
-	public function hasUpdated($path, $time) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		try {
-			// force refresh for $path
-			$this->statCache->remove($path);
-			$response = $this->propfind($path);
-			if ($response === false) {
-				if ($path === '') {
-					// if root is gone it means the storage is not available
-					throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
-				}
-				return false;
-			}
-			if (isset($response['{DAV:}getetag'])) {
-				$cachedData = $this->getCache()->get($path);
-				$etag = null;
-				if (isset($response['{DAV:}getetag'])) {
-					$etag = trim($response['{DAV:}getetag'], '"');
-				}
-				if (!empty($etag) && $cachedData['etag'] !== $etag) {
-					return true;
-				} else if (isset($response['{http://open-collaboration-services.org/ns}share-permissions'])) {
-					$sharePermissions = (int)$response['{http://open-collaboration-services.org/ns}share-permissions'];
-					return $sharePermissions !== $cachedData['permissions'];
-				} else if (isset($response['{http://owncloud.org/ns}permissions'])) {
-					$permissions = $this->parsePermissions($response['{http://owncloud.org/ns}permissions']);
-					return $permissions !== $cachedData['permissions'];
-				} else {
-					return false;
-				}
-			} else {
-				$remoteMtime = strtotime($response['{DAV:}getlastmodified']);
-				return $remoteMtime > $time;
-			}
-		} catch (ClientHttpException $e) {
-			if ($e->getHttpStatus() === 405) {
-				if ($path === '') {
-					// if root is gone it means the storage is not available
-					throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
-				}
-				return false;
-			}
-			$this->convertException($e, $path);
-			return false;
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-			return false;
-		}
-	}
-
-	/**
-	 * Interpret the given exception and decide whether it is due to an
-	 * unavailable storage, invalid storage or other.
-	 * This will either throw StorageInvalidException, StorageNotAvailableException
-	 * or do nothing.
-	 *
-	 * @param Exception $e sabre exception
-	 * @param string $path optional path from the operation
-	 *
-	 * @throws StorageInvalidException if the storage is invalid, for example
-	 * when the authentication expired or is invalid
-	 * @throws StorageNotAvailableException if the storage is not available,
-	 * which might be temporary
-	 */
-	protected function convertException(Exception $e, $path = '') {
-		\OC::$server->getLogger()->logException($e);
-		Util::writeLog('files_external', $e->getMessage(), Util::ERROR);
-		if ($e instanceof ClientHttpException) {
-			if ($e->getHttpStatus() === Http::STATUS_LOCKED) {
-				throw new \OCP\Lock\LockedException($path);
-			}
-			if ($e->getHttpStatus() === Http::STATUS_UNAUTHORIZED) {
-				// either password was changed or was invalid all along
-				throw new StorageInvalidException(get_class($e) . ': ' . $e->getMessage());
-			} else if ($e->getHttpStatus() === Http::STATUS_METHOD_NOT_ALLOWED) {
-				// ignore exception for MethodNotAllowed, false will be returned
-				return;
-			}
-			throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
-		} else if ($e instanceof ClientException) {
-			// connection timeout or refused, server could be temporarily down
-			throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
-		} else if ($e instanceof \InvalidArgumentException) {
-			// parse error because the server returned HTML instead of XML,
-			// possibly temporarily down
-			throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
-		} else if (($e instanceof StorageNotAvailableException) || ($e instanceof StorageInvalidException)) {
-			// rethrow
-			throw $e;
-		}
-
-		// TODO: only log for now, but in the future need to wrap/rethrow exception
-	}
+    /** @var string */
+    protected $password;
+    /** @var string */
+    protected $user;
+    /** @var string */
+    protected $authType;
+    /** @var string */
+    protected $host;
+    /** @var bool */
+    protected $secure;
+    /** @var string */
+    protected $root;
+    /** @var string */
+    protected $certPath;
+    /** @var bool */
+    protected $ready;
+    /** @var Client */
+    protected $client;
+    /** @var ArrayCache */
+    protected $statCache;
+    /** @var \OCP\Http\Client\IClientService */
+    protected $httpClientService;
+
+    /**
+     * @param array $params
+     * @throws \Exception
+     */
+    public function __construct($params) {
+        $this->statCache = new ArrayCache();
+        $this->httpClientService = \OC::$server->getHTTPClientService();
+        if (isset($params['host']) && isset($params['user']) && isset($params['password'])) {
+            $host = $params['host'];
+            //remove leading http[s], will be generated in createBaseUri()
+            if (substr($host, 0, 8) == "https://") $host = substr($host, 8);
+            else if (substr($host, 0, 7) == "http://") $host = substr($host, 7);
+            $this->host = $host;
+            $this->user = $params['user'];
+            $this->password = $params['password'];
+            if (isset($params['authType'])) {
+                $this->authType = $params['authType'];
+            }
+            if (isset($params['secure'])) {
+                if (is_string($params['secure'])) {
+                    $this->secure = ($params['secure'] === 'true');
+                } else {
+                    $this->secure = (bool)$params['secure'];
+                }
+            } else {
+                $this->secure = false;
+            }
+            if ($this->secure === true) {
+                // inject mock for testing
+                $certManager = \OC::$server->getCertificateManager();
+                if (is_null($certManager)) { //no user
+                    $certManager = \OC::$server->getCertificateManager(null);
+                }
+                $certPath = $certManager->getAbsoluteBundlePath();
+                if (file_exists($certPath)) {
+                    $this->certPath = $certPath;
+                }
+            }
+            $this->root = isset($params['root']) ? $params['root'] : '/';
+            if (!$this->root || $this->root[0] != '/') {
+                $this->root = '/' . $this->root;
+            }
+            if (substr($this->root, -1, 1) != '/') {
+                $this->root .= '/';
+            }
+        } else {
+            throw new \Exception('Invalid webdav storage configuration');
+        }
+    }
+
+    protected function init() {
+        if ($this->ready) {
+            return;
+        }
+        $this->ready = true;
+
+        $settings = [
+            'baseUri' => $this->createBaseUri(),
+            'userName' => $this->user,
+            'password' => $this->password,
+        ];
+        if (isset($this->authType)) {
+            $settings['authType'] = $this->authType;
+        }
+
+        $proxy = \OC::$server->getConfig()->getSystemValue('proxy', '');
+        if($proxy !== '') {
+            $settings['proxy'] = $proxy;
+        }
+
+        $this->client = new Client($settings);
+        $this->client->setThrowExceptions(true);
+        if ($this->secure === true && $this->certPath) {
+            $this->client->addCurlSetting(CURLOPT_CAINFO, $this->certPath);
+        }
+    }
+
+    /**
+     * Clear the stat cache
+     */
+    public function clearStatCache() {
+        $this->statCache->clear();
+    }
+
+    /** {@inheritdoc} */
+    public function getId() {
+        return 'webdav::' . $this->user . '@' . $this->host . '/' . $this->root;
+    }
+
+    /** {@inheritdoc} */
+    public function createBaseUri() {
+        $baseUri = 'http';
+        if ($this->secure) {
+            $baseUri .= 's';
+        }
+        $baseUri .= '://' . $this->host . $this->root;
+        return $baseUri;
+    }
+
+    /** {@inheritdoc} */
+    public function mkdir($path) {
+        $this->init();
+        $path = $this->cleanPath($path);
+        $result = $this->simpleResponse('MKCOL', $path, null, 201);
+        if ($result) {
+            $this->statCache->set($path, true);
+        }
+        return $result;
+    }
+
+    /** {@inheritdoc} */
+    public function rmdir($path) {
+        $this->init();
+        $path = $this->cleanPath($path);
+        // FIXME: some WebDAV impl return 403 when trying to DELETE
+        // a non-empty folder
+        $result = $this->simpleResponse('DELETE', $path . '/', null, 204);
+        $this->statCache->clear($path . '/');
+        $this->statCache->remove($path);
+        return $result;
+    }
+
+    /** {@inheritdoc} */
+    public function opendir($path) {
+        $this->init();
+        $path = $this->cleanPath($path);
+        try {
+            $response = $this->client->propFind(
+                $this->encodePath($path),
+                ['{DAV:}href'],
+                1
+            );
+            if ($response === false) {
+                return false;
+            }
+            $content = [];
+            $files = array_keys($response);
+            array_shift($files); //the first entry is the current directory
+
+            if (!$this->statCache->hasKey($path)) {
+                $this->statCache->set($path, true);
+            }
+            foreach ($files as $file) {
+                $file = urldecode($file);
+                // do not store the real entry, we might not have all properties
+                if (!$this->statCache->hasKey($path)) {
+                    $this->statCache->set($file, true);
+                }
+                $file = basename($file);
+                $content[] = $file;
+            }
+            return IteratorDirectory::wrap($content);
+        } catch (\Exception $e) {
+            $this->convertException($e, $path);
+        }
+        return false;
+    }
+
+    /**
+     * Propfind call with cache handling.
+     *
+     * First checks if information is cached.
+     * If not, request it from the server then store to cache.
+     *
+     * @param string $path path to propfind
+     *
+     * @return array|boolean propfind response or false if the entry was not found
+     *
+     * @throws ClientHttpException
+     */
+    protected function propfind($path) {
+        $path = $this->cleanPath($path);
+        $cachedResponse = $this->statCache->get($path);
+        // we either don't know it, or we know it exists but need more details
+        if (is_null($cachedResponse) || $cachedResponse === true) {
+            $this->init();
+            try {
+                $response = $this->client->propFind(
+                    $this->encodePath($path),
+                    array(
+                        '{DAV:}getlastmodified',
+                        '{DAV:}getcontentlength',
+                        '{DAV:}getcontenttype',
+                        '{http://owncloud.org/ns}permissions',
+                        '{http://open-collaboration-services.org/ns}share-permissions',
+                        '{DAV:}resourcetype',
+                        '{DAV:}getetag',
+                    )
+                );
+                $this->statCache->set($path, $response);
+            } catch (ClientHttpException $e) {
+                if ($e->getHttpStatus() === 404) {
+                    $this->statCache->clear($path . '/');
+                    $this->statCache->set($path, false);
+                    return false;
+                }
+                $this->convertException($e, $path);
+            } catch (\Exception $e) {
+                $this->convertException($e, $path);
+            }
+        } else {
+            $response = $cachedResponse;
+        }
+        return $response;
+    }
+
+    /** {@inheritdoc} */
+    public function filetype($path) {
+        try {
+            $response = $this->propfind($path);
+            if ($response === false) {
+                return false;
+            }
+            $responseType = [];
+            if (isset($response["{DAV:}resourcetype"])) {
+                /** @var ResourceType[] $response */
+                $responseType = $response["{DAV:}resourcetype"]->getValue();
+            }
+            return (count($responseType) > 0 and $responseType[0] == "{DAV:}collection") ? 'dir' : 'file';
+        } catch (\Exception $e) {
+            $this->convertException($e, $path);
+        }
+        return false;
+    }
+
+    /** {@inheritdoc} */
+    public function file_exists($path) {
+        try {
+            $path = $this->cleanPath($path);
+            $cachedState = $this->statCache->get($path);
+            if ($cachedState === false) {
+                // we know the file doesn't exist
+                return false;
+            } else if (!is_null($cachedState)) {
+                return true;
+            }
+            // need to get from server
+            return ($this->propfind($path) !== false);
+        } catch (\Exception $e) {
+            $this->convertException($e, $path);
+        }
+        return false;
+    }
+
+    /** {@inheritdoc} */
+    public function unlink($path) {
+        $this->init();
+        $path = $this->cleanPath($path);
+        $result = $this->simpleResponse('DELETE', $path, null, 204);
+        $this->statCache->clear($path . '/');
+        $this->statCache->remove($path);
+        return $result;
+    }
+
+    /** {@inheritdoc} */
+    public function fopen($path, $mode) {
+        $this->init();
+        $path = $this->cleanPath($path);
+        switch ($mode) {
+            case 'r':
+            case 'rb':
+                try {
+                    $response = $this->httpClientService
+                            ->newClient()
+                            ->get($this->createBaseUri() . $this->encodePath($path), [
+                                    'auth' => [$this->user, $this->password],
+                                    'stream' => true
+                            ]);
+                } catch (RequestException $e) {
+                    if ($e->getResponse() instanceof ResponseInterface
+                        && $e->getResponse()->getStatusCode() === 404) {
+                        return false;
+                    } else {
+                        throw $e;
+                    }
+                }
+
+                if ($response->getStatusCode() !== Http::STATUS_OK) {
+                    if ($response->getStatusCode() === Http::STATUS_LOCKED) {
+                        throw new \OCP\Lock\LockedException($path);
+                    } else {
+                        Util::writeLog("webdav client", 'Guzzle get returned status code ' . $response->getStatusCode(), Util::ERROR);
+                    }
+                }
+
+                return $response->getBody();
+            case 'w':
+            case 'wb':
+            case 'a':
+            case 'ab':
+            case 'r+':
+            case 'w+':
+            case 'wb+':
+            case 'a+':
+            case 'x':
+            case 'x+':
+            case 'c':
+            case 'c+':
+                //emulate these
+                $tempManager = \OC::$server->getTempManager();
+                if (strrpos($path, '.') !== false) {
+                    $ext = substr($path, strrpos($path, '.'));
+                } else {
+                    $ext = '';
+                }
+                if ($this->file_exists($path)) {
+                    if (!$this->isUpdatable($path)) {
+                        return false;
+                    }
+                    if ($mode === 'w' or $mode === 'w+') {
+                        $tmpFile = $tempManager->getTemporaryFile($ext);
+                    } else {
+                        $tmpFile = $this->getCachedFile($path);
+                    }
+                } else {
+                    if (!$this->isCreatable(dirname($path))) {
+                        return false;
+                    }
+                    $tmpFile = $tempManager->getTemporaryFile($ext);
+                }
+                $handle = fopen($tmpFile, $mode);
+                return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
+                    $this->writeBack($tmpFile, $path);
+                });
+        }
+    }
+
+    /**
+     * @param string $tmpFile
+     */
+    public function writeBack($tmpFile, $path) {
+        $this->uploadFile($tmpFile, $path);
+        unlink($tmpFile);
+    }
+
+    /** {@inheritdoc} */
+    public function free_space($path) {
+        $this->init();
+        $path = $this->cleanPath($path);
+        try {
+            // TODO: cacheable ?
+            $response = $this->client->propfind($this->encodePath($path), ['{DAV:}quota-available-bytes']);
+            if ($response === false) {
+                return FileInfo::SPACE_UNKNOWN;
+            }
+            if (isset($response['{DAV:}quota-available-bytes'])) {
+                return (int)$response['{DAV:}quota-available-bytes'];
+            } else {
+                return FileInfo::SPACE_UNKNOWN;
+            }
+        } catch (\Exception $e) {
+            return FileInfo::SPACE_UNKNOWN;
+        }
+    }
+
+    /** {@inheritdoc} */
+    public function touch($path, $mtime = null) {
+        $this->init();
+        if (is_null($mtime)) {
+            $mtime = time();
+        }
+        $path = $this->cleanPath($path);
+
+        // if file exists, update the mtime, else create a new empty file
+        if ($this->file_exists($path)) {
+            try {
+                $this->statCache->remove($path);
+                $this->client->proppatch($this->encodePath($path), ['{DAV:}lastmodified' => $mtime]);
+                // non-owncloud clients might not have accepted the property, need to recheck it
+                $response = $this->client->propfind($this->encodePath($path), ['{DAV:}getlastmodified'], 0);
+                if ($response === false) {
+                    return false;
+                }
+                if (isset($response['{DAV:}getlastmodified'])) {
+                    $remoteMtime = strtotime($response['{DAV:}getlastmodified']);
+                    if ($remoteMtime !== $mtime) {
+                        // server has not accepted the mtime
+                        return false;
+                    }
+                }
+            } catch (ClientHttpException $e) {
+                if ($e->getHttpStatus() === 501) {
+                    return false;
+                }
+                $this->convertException($e, $path);
+                return false;
+            } catch (\Exception $e) {
+                $this->convertException($e, $path);
+                return false;
+            }
+        } else {
+            $this->file_put_contents($path, '');
+        }
+        return true;
+    }
+
+    /**
+     * @param string $path
+     * @param string $data
+     * @return int
+     */
+    public function file_put_contents($path, $data) {
+        $path = $this->cleanPath($path);
+        $result = parent::file_put_contents($path, $data);
+        $this->statCache->remove($path);
+        return $result;
+    }
+
+    /**
+     * @param string $path
+     * @param string $target
+     */
+    protected function uploadFile($path, $target) {
+        $this->init();
+
+        // invalidate
+        $target = $this->cleanPath($target);
+        $this->statCache->remove($target);
+        $source = fopen($path, 'r');
+
+        $this->httpClientService
+            ->newClient()
+            ->put($this->createBaseUri() . $this->encodePath($target), [
+                'body' => $source,
+                'auth' => [$this->user, $this->password]
+            ]);
+
+        $this->removeCachedFile($target);
+    }
+
+    /** {@inheritdoc} */
+    public function rename($path1, $path2) {
+        $this->init();
+        $path1 = $this->cleanPath($path1);
+        $path2 = $this->cleanPath($path2);
+        try {
+            // overwrite directory ?
+            if ($this->is_dir($path2)) {
+                // needs trailing slash in destination
+                $path2 = rtrim($path2, '/') . '/';
+            }
+            $this->client->request(
+                'MOVE',
+                $this->encodePath($path1),
+                null,
+                [
+                    'Destination' => $this->createBaseUri() . $this->encodePath($path2),
+                ]
+            );
+            $this->statCache->clear($path1 . '/');
+            $this->statCache->clear($path2 . '/');
+            $this->statCache->set($path1, false);
+            $this->statCache->set($path2, true);
+            $this->removeCachedFile($path1);
+            $this->removeCachedFile($path2);
+            return true;
+        } catch (\Exception $e) {
+            $this->convertException($e);
+        }
+        return false;
+    }
+
+    /** {@inheritdoc} */
+    public function copy($path1, $path2) {
+        $this->init();
+        $path1 = $this->cleanPath($path1);
+        $path2 = $this->cleanPath($path2);
+        try {
+            // overwrite directory ?
+            if ($this->is_dir($path2)) {
+                // needs trailing slash in destination
+                $path2 = rtrim($path2, '/') . '/';
+            }
+            $this->client->request(
+                'COPY',
+                $this->encodePath($path1),
+                null,
+                [
+                    'Destination' => $this->createBaseUri() . $this->encodePath($path2),
+                ]
+            );
+            $this->statCache->clear($path2 . '/');
+            $this->statCache->set($path2, true);
+            $this->removeCachedFile($path2);
+            return true;
+        } catch (\Exception $e) {
+            $this->convertException($e);
+        }
+        return false;
+    }
+
+    /** {@inheritdoc} */
+    public function stat($path) {
+        try {
+            $response = $this->propfind($path);
+            if (!$response) {
+                return false;
+            }
+            return [
+                'mtime' => strtotime($response['{DAV:}getlastmodified']),
+                'size' => (int)isset($response['{DAV:}getcontentlength']) ? $response['{DAV:}getcontentlength'] : 0,
+            ];
+        } catch (\Exception $e) {
+            $this->convertException($e, $path);
+        }
+        return array();
+    }
+
+    /** {@inheritdoc} */
+    public function getMimeType($path) {
+        try {
+            $response = $this->propfind($path);
+            if ($response === false) {
+                return false;
+            }
+            $responseType = [];
+            if (isset($response["{DAV:}resourcetype"])) {
+                /** @var ResourceType[] $response */
+                $responseType = $response["{DAV:}resourcetype"]->getValue();
+            }
+            $type = (count($responseType) > 0 and $responseType[0] == "{DAV:}collection") ? 'dir' : 'file';
+            if ($type == 'dir') {
+                return 'httpd/unix-directory';
+            } elseif (isset($response['{DAV:}getcontenttype'])) {
+                return $response['{DAV:}getcontenttype'];
+            } else {
+                return false;
+            }
+        } catch (\Exception $e) {
+            $this->convertException($e, $path);
+        }
+        return false;
+    }
+
+    /**
+     * @param string $path
+     * @return string
+     */
+    public function cleanPath($path) {
+        if ($path === '') {
+            return $path;
+        }
+        $path = Filesystem::normalizePath($path);
+        // remove leading slash
+        return substr($path, 1);
+    }
+
+    /**
+     * URL encodes the given path but keeps the slashes
+     *
+     * @param string $path to encode
+     * @return string encoded path
+     */
+    protected function encodePath($path) {
+        // slashes need to stay
+        return str_replace('%2F', '/', rawurlencode($path));
+    }
+
+    /**
+     * @param string $method
+     * @param string $path
+     * @param string|resource|null $body
+     * @param int $expected
+     * @return bool
+     * @throws StorageInvalidException
+     * @throws StorageNotAvailableException
+     */
+    protected function simpleResponse($method, $path, $body, $expected) {
+        $path = $this->cleanPath($path);
+        try {
+            $response = $this->client->request($method, $this->encodePath($path), $body);
+            return $response['statusCode'] == $expected;
+        } catch (ClientHttpException $e) {
+            if ($e->getHttpStatus() === 404 && $method === 'DELETE') {
+                $this->statCache->clear($path . '/');
+                $this->statCache->set($path, false);
+                return false;
+            }
+
+            $this->convertException($e, $path);
+        } catch (\Exception $e) {
+            $this->convertException($e, $path);
+        }
+        return false;
+    }
+
+    /**
+     * check if curl is installed
+     */
+    public static function checkDependencies() {
+        return true;
+    }
+
+    /** {@inheritdoc} */
+    public function isUpdatable($path) {
+        return (bool)($this->getPermissions($path) & Constants::PERMISSION_UPDATE);
+    }
+
+    /** {@inheritdoc} */
+    public function isCreatable($path) {
+        return (bool)($this->getPermissions($path) & Constants::PERMISSION_CREATE);
+    }
+
+    /** {@inheritdoc} */
+    public function isSharable($path) {
+        return (bool)($this->getPermissions($path) & Constants::PERMISSION_SHARE);
+    }
+
+    /** {@inheritdoc} */
+    public function isDeletable($path) {
+        return (bool)($this->getPermissions($path) & Constants::PERMISSION_DELETE);
+    }
+
+    /** {@inheritdoc} */
+    public function getPermissions($path) {
+        $this->init();
+        $path = $this->cleanPath($path);
+        $response = $this->propfind($path);
+        if ($response === false) {
+            return 0;
+        }
+        if (isset($response['{http://owncloud.org/ns}permissions'])) {
+            return $this->parsePermissions($response['{http://owncloud.org/ns}permissions']);
+        } else if ($this->is_dir($path)) {
+            return Constants::PERMISSION_ALL;
+        } else if ($this->file_exists($path)) {
+            return Constants::PERMISSION_ALL - Constants::PERMISSION_CREATE;
+        } else {
+            return 0;
+        }
+    }
+
+    /** {@inheritdoc} */
+    public function getETag($path) {
+        $this->init();
+        $path = $this->cleanPath($path);
+        $response = $this->propfind($path);
+        if ($response === false) {
+            return null;
+        }
+        if (isset($response['{DAV:}getetag'])) {
+            return trim($response['{DAV:}getetag'], '"');
+        }
+        return parent::getEtag($path);
+    }
+
+    /**
+     * @param string $permissionsString
+     * @return int
+     */
+    protected function parsePermissions($permissionsString) {
+        $permissions = Constants::PERMISSION_READ;
+        if (strpos($permissionsString, 'R') !== false) {
+            $permissions |= Constants::PERMISSION_SHARE;
+        }
+        if (strpos($permissionsString, 'D') !== false) {
+            $permissions |= Constants::PERMISSION_DELETE;
+        }
+        if (strpos($permissionsString, 'W') !== false) {
+            $permissions |= Constants::PERMISSION_UPDATE;
+        }
+        if (strpos($permissionsString, 'CK') !== false) {
+            $permissions |= Constants::PERMISSION_CREATE;
+            $permissions |= Constants::PERMISSION_UPDATE;
+        }
+        return $permissions;
+    }
+
+    /**
+     * check if a file or folder has been updated since $time
+     *
+     * @param string $path
+     * @param int $time
+     * @throws \OCP\Files\StorageNotAvailableException
+     * @return bool
+     */
+    public function hasUpdated($path, $time) {
+        $this->init();
+        $path = $this->cleanPath($path);
+        try {
+            // force refresh for $path
+            $this->statCache->remove($path);
+            $response = $this->propfind($path);
+            if ($response === false) {
+                if ($path === '') {
+                    // if root is gone it means the storage is not available
+                    throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+                }
+                return false;
+            }
+            if (isset($response['{DAV:}getetag'])) {
+                $cachedData = $this->getCache()->get($path);
+                $etag = null;
+                if (isset($response['{DAV:}getetag'])) {
+                    $etag = trim($response['{DAV:}getetag'], '"');
+                }
+                if (!empty($etag) && $cachedData['etag'] !== $etag) {
+                    return true;
+                } else if (isset($response['{http://open-collaboration-services.org/ns}share-permissions'])) {
+                    $sharePermissions = (int)$response['{http://open-collaboration-services.org/ns}share-permissions'];
+                    return $sharePermissions !== $cachedData['permissions'];
+                } else if (isset($response['{http://owncloud.org/ns}permissions'])) {
+                    $permissions = $this->parsePermissions($response['{http://owncloud.org/ns}permissions']);
+                    return $permissions !== $cachedData['permissions'];
+                } else {
+                    return false;
+                }
+            } else {
+                $remoteMtime = strtotime($response['{DAV:}getlastmodified']);
+                return $remoteMtime > $time;
+            }
+        } catch (ClientHttpException $e) {
+            if ($e->getHttpStatus() === 405) {
+                if ($path === '') {
+                    // if root is gone it means the storage is not available
+                    throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+                }
+                return false;
+            }
+            $this->convertException($e, $path);
+            return false;
+        } catch (\Exception $e) {
+            $this->convertException($e, $path);
+            return false;
+        }
+    }
+
+    /**
+     * Interpret the given exception and decide whether it is due to an
+     * unavailable storage, invalid storage or other.
+     * This will either throw StorageInvalidException, StorageNotAvailableException
+     * or do nothing.
+     *
+     * @param Exception $e sabre exception
+     * @param string $path optional path from the operation
+     *
+     * @throws StorageInvalidException if the storage is invalid, for example
+     * when the authentication expired or is invalid
+     * @throws StorageNotAvailableException if the storage is not available,
+     * which might be temporary
+     */
+    protected function convertException(Exception $e, $path = '') {
+        \OC::$server->getLogger()->logException($e);
+        Util::writeLog('files_external', $e->getMessage(), Util::ERROR);
+        if ($e instanceof ClientHttpException) {
+            if ($e->getHttpStatus() === Http::STATUS_LOCKED) {
+                throw new \OCP\Lock\LockedException($path);
+            }
+            if ($e->getHttpStatus() === Http::STATUS_UNAUTHORIZED) {
+                // either password was changed or was invalid all along
+                throw new StorageInvalidException(get_class($e) . ': ' . $e->getMessage());
+            } else if ($e->getHttpStatus() === Http::STATUS_METHOD_NOT_ALLOWED) {
+                // ignore exception for MethodNotAllowed, false will be returned
+                return;
+            }
+            throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+        } else if ($e instanceof ClientException) {
+            // connection timeout or refused, server could be temporarily down
+            throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+        } else if ($e instanceof \InvalidArgumentException) {
+            // parse error because the server returned HTML instead of XML,
+            // possibly temporarily down
+            throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+        } else if (($e instanceof StorageNotAvailableException) || ($e instanceof StorageInvalidException)) {
+            // rethrow
+            throw $e;
+        }
+
+        // TODO: only log for now, but in the future need to wrap/rethrow exception
+    }
 }
 

Spacing +34 added lines, -34 removed lines

@@ -104,7 +104,7 @@ 
 				if (is_string($params['secure'])) {
 					$this->secure = ($params['secure'] === 'true');
 				} else {
-					$this->secure = (bool)$params['secure'];
+					$this->secure = (bool) $params['secure'];
 				}
 			} else {
 				$this->secure = false;
@@ -122,7 +122,7 @@ 
 			}
 			$this->root = isset($params['root']) ? $params['root'] : '/';
 			if (!$this->root || $this->root[0] != '/') {
-				$this->root = '/' . $this->root;
+				$this->root = '/'.$this->root;
 			}
 			if (substr($this->root, -1, 1) != '/') {
 				$this->root .= '/';
@@ -148,7 +148,7 @@ 
 		}
 
 		$proxy = \OC::$server->getConfig()->getSystemValue('proxy', '');
-		if($proxy !== '') {
+		if ($proxy !== '') {
 			$settings['proxy'] = $proxy;
 		}
 
@@ -168,7 +168,7 @@ 
 
 	/** {@inheritdoc} */
 	public function getId() {
-		return 'webdav::' . $this->user . '@' . $this->host . '/' . $this->root;
+		return 'webdav::'.$this->user.'@'.$this->host.'/'.$this->root;
 	}
 
 	/** {@inheritdoc} */
@@ -177,7 +177,7 @@ 
 		if ($this->secure) {
 			$baseUri .= 's';
 		}
-		$baseUri .= '://' . $this->host . $this->root;
+		$baseUri .= '://'.$this->host.$this->root;
 		return $baseUri;
 	}
 
@@ -198,8 +198,8 @@ 
 		$path = $this->cleanPath($path);
 		// FIXME: some WebDAV impl return 403 when trying to DELETE
 		// a non-empty folder
-		$result = $this->simpleResponse('DELETE', $path . '/', null, 204);
-		$this->statCache->clear($path . '/');
+		$result = $this->simpleResponse('DELETE', $path.'/', null, 204);
+		$this->statCache->clear($path.'/');
 		$this->statCache->remove($path);
 		return $result;
 	}
@@ -274,7 +274,7 @@ 
 				$this->statCache->set($path, $response);
 			} catch (ClientHttpException $e) {
 				if ($e->getHttpStatus() === 404) {
-					$this->statCache->clear($path . '/');
+					$this->statCache->clear($path.'/');
 					$this->statCache->set($path, false);
 					return false;
 				}
@@ -331,7 +331,7 @@ 
 		$this->init();
 		$path = $this->cleanPath($path);
 		$result = $this->simpleResponse('DELETE', $path, null, 204);
-		$this->statCache->clear($path . '/');
+		$this->statCache->clear($path.'/');
 		$this->statCache->remove($path);
 		return $result;
 	}
@@ -346,7 +346,7 @@ 
 				try {
 					$response = $this->httpClientService
 							->newClient()
-							->get($this->createBaseUri() . $this->encodePath($path), [
+							->get($this->createBaseUri().$this->encodePath($path), [
 									'auth' => [$this->user, $this->password],
 									'stream' => true
 							]);
@@ -363,7 +363,7 @@ 
 					if ($response->getStatusCode() === Http::STATUS_LOCKED) {
 						throw new \OCP\Lock\LockedException($path);
 					} else {
-						Util::writeLog("webdav client", 'Guzzle get returned status code ' . $response->getStatusCode(), Util::ERROR);
+						Util::writeLog("webdav client", 'Guzzle get returned status code '.$response->getStatusCode(), Util::ERROR);
 					}
 				}
 
@@ -403,7 +403,7 @@ 
 					$tmpFile = $tempManager->getTemporaryFile($ext);
 				}
 				$handle = fopen($tmpFile, $mode);
-				return CallbackWrapper::wrap($handle, null, null, function () use ($path, $tmpFile) {
+				return CallbackWrapper::wrap($handle, null, null, function() use ($path, $tmpFile) {
 					$this->writeBack($tmpFile, $path);
 				});
 		}
@@ -428,7 +428,7 @@ 
 				return FileInfo::SPACE_UNKNOWN;
 			}
 			if (isset($response['{DAV:}quota-available-bytes'])) {
-				return (int)$response['{DAV:}quota-available-bytes'];
+				return (int) $response['{DAV:}quota-available-bytes'];
 			} else {
 				return FileInfo::SPACE_UNKNOWN;
 			}
@@ -504,7 +504,7 @@ 
 
 		$this->httpClientService
 			->newClient()
-			->put($this->createBaseUri() . $this->encodePath($target), [
+			->put($this->createBaseUri().$this->encodePath($target), [
 				'body' => $source,
 				'auth' => [$this->user, $this->password]
 			]);
@@ -521,18 +521,18 @@ 
 			// overwrite directory ?
 			if ($this->is_dir($path2)) {
 				// needs trailing slash in destination
-				$path2 = rtrim($path2, '/') . '/';
+				$path2 = rtrim($path2, '/').'/';
 			}
 			$this->client->request(
 				'MOVE',
 				$this->encodePath($path1),
 				null,
 				[
-					'Destination' => $this->createBaseUri() . $this->encodePath($path2),
+					'Destination' => $this->createBaseUri().$this->encodePath($path2),
 				]
 			);
-			$this->statCache->clear($path1 . '/');
-			$this->statCache->clear($path2 . '/');
+			$this->statCache->clear($path1.'/');
+			$this->statCache->clear($path2.'/');
 			$this->statCache->set($path1, false);
 			$this->statCache->set($path2, true);
 			$this->removeCachedFile($path1);
@@ -553,17 +553,17 @@ 
 			// overwrite directory ?
 			if ($this->is_dir($path2)) {
 				// needs trailing slash in destination
-				$path2 = rtrim($path2, '/') . '/';
+				$path2 = rtrim($path2, '/').'/';
 			}
 			$this->client->request(
 				'COPY',
 				$this->encodePath($path1),
 				null,
 				[
-					'Destination' => $this->createBaseUri() . $this->encodePath($path2),
+					'Destination' => $this->createBaseUri().$this->encodePath($path2),
 				]
 			);
-			$this->statCache->clear($path2 . '/');
+			$this->statCache->clear($path2.'/');
 			$this->statCache->set($path2, true);
 			$this->removeCachedFile($path2);
 			return true;
@@ -582,7 +582,7 @@ 
 			}
 			return [
 				'mtime' => strtotime($response['{DAV:}getlastmodified']),
-				'size' => (int)isset($response['{DAV:}getcontentlength']) ? $response['{DAV:}getcontentlength'] : 0,
+				'size' => (int) isset($response['{DAV:}getcontentlength']) ? $response['{DAV:}getcontentlength'] : 0,
 			];
 		} catch (\Exception $e) {
 			$this->convertException($e, $path);
@@ -656,7 +656,7 @@ 
 			return $response['statusCode'] == $expected;
 		} catch (ClientHttpException $e) {
 			if ($e->getHttpStatus() === 404 && $method === 'DELETE') {
-				$this->statCache->clear($path . '/');
+				$this->statCache->clear($path.'/');
 				$this->statCache->set($path, false);
 				return false;
 			}
@@ -677,22 +677,22 @@ 
 
 	/** {@inheritdoc} */
 	public function isUpdatable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_UPDATE);
+		return (bool) ($this->getPermissions($path) & Constants::PERMISSION_UPDATE);
 	}
 
 	/** {@inheritdoc} */
 	public function isCreatable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_CREATE);
+		return (bool) ($this->getPermissions($path) & Constants::PERMISSION_CREATE);
 	}
 
 	/** {@inheritdoc} */
 	public function isSharable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_SHARE);
+		return (bool) ($this->getPermissions($path) & Constants::PERMISSION_SHARE);
 	}
 
 	/** {@inheritdoc} */
 	public function isDeletable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_DELETE);
+		return (bool) ($this->getPermissions($path) & Constants::PERMISSION_DELETE);
 	}
 
 	/** {@inheritdoc} */
@@ -768,7 +768,7 @@ 
 			if ($response === false) {
 				if ($path === '') {
 					// if root is gone it means the storage is not available
-					throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+					throw new StorageNotAvailableException(get_class($e).': '.$e->getMessage());
 				}
 				return false;
 			}
@@ -781,7 +781,7 @@ 
 				if (!empty($etag) && $cachedData['etag'] !== $etag) {
 					return true;
 				} else if (isset($response['{http://open-collaboration-services.org/ns}share-permissions'])) {
-					$sharePermissions = (int)$response['{http://open-collaboration-services.org/ns}share-permissions'];
+					$sharePermissions = (int) $response['{http://open-collaboration-services.org/ns}share-permissions'];
 					return $sharePermissions !== $cachedData['permissions'];
 				} else if (isset($response['{http://owncloud.org/ns}permissions'])) {
 					$permissions = $this->parsePermissions($response['{http://owncloud.org/ns}permissions']);
@@ -797,7 +797,7 @@ 
 			if ($e->getHttpStatus() === 405) {
 				if ($path === '') {
 					// if root is gone it means the storage is not available
-					throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+					throw new StorageNotAvailableException(get_class($e).': '.$e->getMessage());
 				}
 				return false;
 			}
@@ -832,19 +832,19 @@ 
 			}
 			if ($e->getHttpStatus() === Http::STATUS_UNAUTHORIZED) {
 				// either password was changed or was invalid all along
-				throw new StorageInvalidException(get_class($e) . ': ' . $e->getMessage());
+				throw new StorageInvalidException(get_class($e).': '.$e->getMessage());
 			} else if ($e->getHttpStatus() === Http::STATUS_METHOD_NOT_ALLOWED) {
 				// ignore exception for MethodNotAllowed, false will be returned
 				return;
 			}
-			throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+			throw new StorageNotAvailableException(get_class($e).': '.$e->getMessage());
 		} else if ($e instanceof ClientException) {
 			// connection timeout or refused, server could be temporarily down
-			throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+			throw new StorageNotAvailableException(get_class($e).': '.$e->getMessage());
 		} else if ($e instanceof \InvalidArgumentException) {
 			// parse error because the server returned HTML instead of XML,
 			// possibly temporarily down
-			throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
+			throw new StorageNotAvailableException(get_class($e).': '.$e->getMessage());
 		} else if (($e instanceof StorageNotAvailableException) || ($e instanceof StorageInvalidException)) {
 			// rethrow
 			throw $e;

apps/files_external/lib/Lib/Notify/SMBNotifyHandler.php

Doc Comments +1 added lines, -1 removed lines

@@ -102,7 +102,7 @@
 
 	/**
 	 * @param \Icewind\SMB\Change $change
-	 * @return IChange|null
+	 * @return null|Change
 	 */
 	private function mapChange(\Icewind\SMB\Change $change) {
 		$path = $this->relativePath($change->getPath());

Indentation +109 added lines, -109 removed lines

@@ -29,122 +29,122 @@
 use OCP\Files\Notify\INotifyHandler;
 
 class SMBNotifyHandler implements INotifyHandler {
-	/**
-	 * @var \Icewind\SMB\INotifyHandler
-	 */
-	private $shareNotifyHandler;
+    /**
+     * @var \Icewind\SMB\INotifyHandler
+     */
+    private $shareNotifyHandler;
 
-	/**
-	 * @var string
-	 */
-	private $root;
+    /**
+     * @var string
+     */
+    private $root;
 
-	private $oldRenamePath = null;
+    private $oldRenamePath = null;
 
-	/**
-	 * SMBNotifyHandler constructor.
-	 *
-	 * @param \Icewind\SMB\INotifyHandler $shareNotifyHandler
-	 * @param string $root
-	 */
-	public function __construct(\Icewind\SMB\INotifyHandler $shareNotifyHandler, $root) {
-		$this->shareNotifyHandler = $shareNotifyHandler;
-		$this->root = $root;
-	}
+    /**
+     * SMBNotifyHandler constructor.
+     *
+     * @param \Icewind\SMB\INotifyHandler $shareNotifyHandler
+     * @param string $root
+     */
+    public function __construct(\Icewind\SMB\INotifyHandler $shareNotifyHandler, $root) {
+        $this->shareNotifyHandler = $shareNotifyHandler;
+        $this->root = $root;
+    }
 
-	private function relativePath($fullPath) {
-		if ($fullPath === $this->root) {
-			return '';
-		} else if (substr($fullPath, 0, strlen($this->root)) === $this->root) {
-			return substr($fullPath, strlen($this->root));
-		} else {
-			return null;
-		}
-	}
+    private function relativePath($fullPath) {
+        if ($fullPath === $this->root) {
+            return '';
+        } else if (substr($fullPath, 0, strlen($this->root)) === $this->root) {
+            return substr($fullPath, strlen($this->root));
+        } else {
+            return null;
+        }
+    }
 
-	public function listen(callable $callback) {
-		$oldRenamePath = null;
-		$this->shareNotifyHandler->listen(function (\Icewind\SMB\Change $shareChange) use ($callback) {
-			$change = $this->mapChange($shareChange);
-			if (!is_null($change)) {
-				return $callback($change);
-			} else {
-				return true;
-			}
-		});
-	}
+    public function listen(callable $callback) {
+        $oldRenamePath = null;
+        $this->shareNotifyHandler->listen(function (\Icewind\SMB\Change $shareChange) use ($callback) {
+            $change = $this->mapChange($shareChange);
+            if (!is_null($change)) {
+                return $callback($change);
+            } else {
+                return true;
+            }
+        });
+    }
 
-	/**
-	 * Get all changes detected since the start of the notify process or the last call to getChanges
-	 *
-	 * @return IChange[]
-	 */
-	public function getChanges() {
-		$shareChanges = $this->shareNotifyHandler->getChanges();
-		$changes = [];
-		foreach ($shareChanges as $shareChange) {
-			$change = $this->mapChange($shareChange);
-			if ($change) {
-				$changes[] = $change;
-			}
-		}
-		return $changes;
-	}
+    /**
+     * Get all changes detected since the start of the notify process or the last call to getChanges
+     *
+     * @return IChange[]
+     */
+    public function getChanges() {
+        $shareChanges = $this->shareNotifyHandler->getChanges();
+        $changes = [];
+        foreach ($shareChanges as $shareChange) {
+            $change = $this->mapChange($shareChange);
+            if ($change) {
+                $changes[] = $change;
+            }
+        }
+        return $changes;
+    }
 
-	/**
-	 * Stop listening for changes
-	 *
-	 * Note that any pending changes will be discarded
-	 */
-	public function stop() {
-		$this->shareNotifyHandler->stop();
-	}
+    /**
+     * Stop listening for changes
+     *
+     * Note that any pending changes will be discarded
+     */
+    public function stop() {
+        $this->shareNotifyHandler->stop();
+    }
 
-	/**
-	 * @param \Icewind\SMB\Change $change
-	 * @return IChange|null
-	 */
-	private function mapChange(\Icewind\SMB\Change $change) {
-		$path = $this->relativePath($change->getPath());
-		if (is_null($path)) {
-			return null;
-		}
-		if ($change->getCode() === \Icewind\SMB\INotifyHandler::NOTIFY_RENAMED_OLD) {
-			$this->oldRenamePath = $path;
-			return null;
-		}
-		$type = $this->mapNotifyType($change->getCode());
-		if (is_null($type)) {
-			return null;
-		}
-		if ($type === IChange::RENAMED) {
-			if (!is_null($this->oldRenamePath)) {
-				$result = new RenameChange($type, $this->oldRenamePath, $path);
-				$this->oldRenamePath = null;
-			} else {
-				$result = null;
-			}
-		} else {
-			$result = new Change($type, $path);
-		}
-		return $result;
-	}
+    /**
+     * @param \Icewind\SMB\Change $change
+     * @return IChange|null
+     */
+    private function mapChange(\Icewind\SMB\Change $change) {
+        $path = $this->relativePath($change->getPath());
+        if (is_null($path)) {
+            return null;
+        }
+        if ($change->getCode() === \Icewind\SMB\INotifyHandler::NOTIFY_RENAMED_OLD) {
+            $this->oldRenamePath = $path;
+            return null;
+        }
+        $type = $this->mapNotifyType($change->getCode());
+        if (is_null($type)) {
+            return null;
+        }
+        if ($type === IChange::RENAMED) {
+            if (!is_null($this->oldRenamePath)) {
+                $result = new RenameChange($type, $this->oldRenamePath, $path);
+                $this->oldRenamePath = null;
+            } else {
+                $result = null;
+            }
+        } else {
+            $result = new Change($type, $path);
+        }
+        return $result;
+    }
 
-	private function mapNotifyType($smbType) {
-		switch ($smbType) {
-			case \Icewind\SMB\INotifyHandler::NOTIFY_ADDED:
-				return IChange::ADDED;
-			case \Icewind\SMB\INotifyHandler::NOTIFY_REMOVED:
-				return IChange::REMOVED;
-			case \Icewind\SMB\INotifyHandler::NOTIFY_MODIFIED:
-			case \Icewind\SMB\INotifyHandler::NOTIFY_ADDED_STREAM:
-			case \Icewind\SMB\INotifyHandler::NOTIFY_MODIFIED_STREAM:
-			case \Icewind\SMB\INotifyHandler::NOTIFY_REMOVED_STREAM:
-				return IChange::MODIFIED;
-			case \Icewind\SMB\INotifyHandler::NOTIFY_RENAMED_NEW:
-				return IChange::RENAMED;
-			default:
-				return null;
-		}
-	}
+    private function mapNotifyType($smbType) {
+        switch ($smbType) {
+            case \Icewind\SMB\INotifyHandler::NOTIFY_ADDED:
+                return IChange::ADDED;
+            case \Icewind\SMB\INotifyHandler::NOTIFY_REMOVED:
+                return IChange::REMOVED;
+            case \Icewind\SMB\INotifyHandler::NOTIFY_MODIFIED:
+            case \Icewind\SMB\INotifyHandler::NOTIFY_ADDED_STREAM:
+            case \Icewind\SMB\INotifyHandler::NOTIFY_MODIFIED_STREAM:
+            case \Icewind\SMB\INotifyHandler::NOTIFY_REMOVED_STREAM:
+                return IChange::MODIFIED;
+            case \Icewind\SMB\INotifyHandler::NOTIFY_RENAMED_NEW:
+                return IChange::RENAMED;
+            default:
+                return null;
+        }
+    }
 }

Spacing +1 added lines, -1 removed lines

@@ -64,7 +64,7 @@
 
 	public function listen(callable $callback) {
 		$oldRenamePath = null;
-		$this->shareNotifyHandler->listen(function (\Icewind\SMB\Change $shareChange) use ($callback) {
+		$this->shareNotifyHandler->listen(function(\Icewind\SMB\Change $shareChange) use ($callback) {
 			$change = $this->mapChange($shareChange);
 			if (!is_null($change)) {
 				return $callback($change);