nextcloud / server

lib/private/Files/Storage/Common.php

Indentation +823 added lines, -823 removed lines

@@ -77,831 +77,831 @@
  * in classes which extend it, e.g. $this->stat() .
  */
 abstract class Common implements Storage, ILockingStorage, IWriteStreamStorage {
-	use LocalTempFileTrait;
-
-	protected $cache;
-	protected $scanner;
-	protected $watcher;
-	protected $propagator;
-	protected $storageCache;
-	protected $updater;
-
-	protected $mountOptions = [];
-	protected $owner = null;
-
-	/** @var ?bool */
-	private $shouldLogLocks = null;
-	/** @var ?LoggerInterface */
-	private $logger;
-
-	public function __construct($parameters) {
-	}
-
-	/**
-	 * Remove a file or folder
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	protected function remove($path) {
-		if ($this->is_dir($path)) {
-			return $this->rmdir($path);
-		} elseif ($this->is_file($path)) {
-			return $this->unlink($path);
-		} else {
-			return false;
-		}
-	}
-
-	public function is_dir($path) {
-		return $this->filetype($path) === 'dir';
-	}
-
-	public function is_file($path) {
-		return $this->filetype($path) === 'file';
-	}
-
-	public function filesize($path): false|int|float {
-		if ($this->is_dir($path)) {
-			return 0; //by definition
-		} else {
-			$stat = $this->stat($path);
-			if (isset($stat['size'])) {
-				return $stat['size'];
-			} else {
-				return 0;
-			}
-		}
-	}
-
-	public function isReadable($path) {
-		// at least check whether it exists
-		// subclasses might want to implement this more thoroughly
-		return $this->file_exists($path);
-	}
-
-	public function isUpdatable($path) {
-		// at least check whether it exists
-		// subclasses might want to implement this more thoroughly
-		// a non-existing file/folder isn't updatable
-		return $this->file_exists($path);
-	}
-
-	public function isCreatable($path) {
-		if ($this->is_dir($path) && $this->isUpdatable($path)) {
-			return true;
-		}
-		return false;
-	}
-
-	public function isDeletable($path) {
-		if ($path === '' || $path === '/') {
-			return $this->isUpdatable($path);
-		}
-		$parent = dirname($path);
-		return $this->isUpdatable($parent) && $this->isUpdatable($path);
-	}
-
-	public function isSharable($path) {
-		return $this->isReadable($path);
-	}
-
-	public function getPermissions($path) {
-		$permissions = 0;
-		if ($this->isCreatable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_CREATE;
-		}
-		if ($this->isReadable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_READ;
-		}
-		if ($this->isUpdatable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_UPDATE;
-		}
-		if ($this->isDeletable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_DELETE;
-		}
-		if ($this->isSharable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_SHARE;
-		}
-		return $permissions;
-	}
-
-	public function filemtime($path) {
-		$stat = $this->stat($path);
-		if (isset($stat['mtime']) && $stat['mtime'] > 0) {
-			return $stat['mtime'];
-		} else {
-			return 0;
-		}
-	}
-
-	public function file_get_contents($path) {
-		$handle = $this->fopen($path, "r");
-		if (!$handle) {
-			return false;
-		}
-		$data = stream_get_contents($handle);
-		fclose($handle);
-		return $data;
-	}
-
-	public function file_put_contents($path, $data) {
-		$handle = $this->fopen($path, "w");
-		if (!$handle) {
-			return false;
-		}
-		$this->removeCachedFile($path);
-		$count = fwrite($handle, $data);
-		fclose($handle);
-		return $count;
-	}
-
-	public function rename($source, $target) {
-		$this->remove($target);
-
-		$this->removeCachedFile($source);
-		return $this->copy($source, $target) and $this->remove($source);
-	}
-
-	public function copy($source, $target) {
-		if ($this->is_dir($source)) {
-			$this->remove($target);
-			$dir = $this->opendir($source);
-			$this->mkdir($target);
-			while ($file = readdir($dir)) {
-				if (!Filesystem::isIgnoredDir($file)) {
-					if (!$this->copy($source . '/' . $file, $target . '/' . $file)) {
-						closedir($dir);
-						return false;
-					}
-				}
-			}
-			closedir($dir);
-			return true;
-		} else {
-			$sourceStream = $this->fopen($source, 'r');
-			$targetStream = $this->fopen($target, 'w');
-			[, $result] = \OC_Helper::streamCopy($sourceStream, $targetStream);
-			if (!$result) {
-				\OCP\Server::get(LoggerInterface::class)->warning("Failed to write data while copying $source to $target");
-			}
-			$this->removeCachedFile($target);
-			return $result;
-		}
-	}
-
-	public function getMimeType($path) {
-		if ($this->is_dir($path)) {
-			return 'httpd/unix-directory';
-		} elseif ($this->file_exists($path)) {
-			return \OC::$server->getMimeTypeDetector()->detectPath($path);
-		} else {
-			return false;
-		}
-	}
-
-	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, $raw);
-	}
-
-	public function search($query) {
-		return $this->searchInDir($query);
-	}
-
-	public function getLocalFile($path) {
-		return $this->getCachedFile($path);
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $target
-	 */
-	private function addLocalFolder($path, $target) {
-		$dh = $this->opendir($path);
-		if (is_resource($dh)) {
-			while (($file = readdir($dh)) !== false) {
-				if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
-					if ($this->is_dir($path . '/' . $file)) {
-						mkdir($target . '/' . $file);
-						$this->addLocalFolder($path . '/' . $file, $target . '/' . $file);
-					} else {
-						$tmp = $this->toTmpFile($path . '/' . $file);
-						rename($tmp, $target . '/' . $file);
-					}
-				}
-			}
-		}
-	}
-
-	/**
-	 * @param string $query
-	 * @param string $dir
-	 * @return array
-	 */
-	protected function searchInDir($query, $dir = '') {
-		$files = [];
-		$dh = $this->opendir($dir);
-		if (is_resource($dh)) {
-			while (($item = readdir($dh)) !== false) {
-				if (\OC\Files\Filesystem::isIgnoredDir($item)) {
-					continue;
-				}
-				if (strstr(strtolower($item), strtolower($query)) !== false) {
-					$files[] = $dir . '/' . $item;
-				}
-				if ($this->is_dir($dir . '/' . $item)) {
-					$files = array_merge($files, $this->searchInDir($query, $dir . '/' . $item));
-				}
-			}
-		}
-		closedir($dh);
-		return $files;
-	}
-
-	/**
-	 * Check if a file or folder has been updated since $time
-	 *
-	 * The method is only used to check if the cache needs to be updated. Storage backends that don't support checking
-	 * the mtime should always return false here. As a result storage implementations that always return false expect
-	 * exclusive access to the backend and will not pick up files that have been added in a way that circumvents
-	 * Nextcloud filesystem.
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return bool
-	 */
-	public function hasUpdated($path, $time) {
-		return $this->filemtime($path) > $time;
-	}
-
-	public function getCache($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($storage->cache)) {
-			$storage->cache = new Cache($storage);
-		}
-		return $storage->cache;
-	}
-
-	public function getScanner($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($storage->scanner)) {
-			$storage->scanner = new Scanner($storage);
-		}
-		return $storage->scanner;
-	}
-
-	public function getWatcher($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($this->watcher)) {
-			$this->watcher = new Watcher($storage);
-			$globalPolicy = \OC::$server->getConfig()->getSystemValue('filesystem_check_changes', Watcher::CHECK_NEVER);
-			$this->watcher->setPolicy((int)$this->getMountOption('filesystem_check_changes', $globalPolicy));
-		}
-		return $this->watcher;
-	}
-
-	/**
-	 * get a propagator instance for the cache
-	 *
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
-	 * @return \OC\Files\Cache\Propagator
-	 */
-	public function getPropagator($storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($storage->propagator)) {
-			$config = \OC::$server->getSystemConfig();
-			$storage->propagator = new Propagator($storage, \OC::$server->getDatabaseConnection(), ['appdata_' . $config->getValue('instanceid')]);
-		}
-		return $storage->propagator;
-	}
-
-	public function getUpdater($storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($storage->updater)) {
-			$storage->updater = new Updater($storage);
-		}
-		return $storage->updater;
-	}
-
-	public function getStorageCache($storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($this->storageCache)) {
-			$this->storageCache = new \OC\Files\Cache\Storage($storage);
-		}
-		return $this->storageCache;
-	}
-
-	/**
-	 * get the owner of a path
-	 *
-	 * @param string $path The path to get the owner
-	 * @return string|false uid or false
-	 */
-	public function getOwner($path) {
-		if ($this->owner === null) {
-			$this->owner = \OC_User::getUser();
-		}
-
-		return $this->owner;
-	}
-
-	/**
-	 * get the ETag for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getETag($path) {
-		return uniqid();
-	}
-
-	/**
-	 * clean a path, i.e. remove all redundant '.' and '..'
-	 * making sure that it can't point to higher than '/'
-	 *
-	 * @param string $path The path to clean
-	 * @return string cleaned path
-	 */
-	public function cleanPath($path) {
-		if (strlen($path) == 0 or $path[0] != '/') {
-			$path = '/' . $path;
-		}
-
-		$output = [];
-		foreach (explode('/', $path) as $chunk) {
-			if ($chunk == '..') {
-				array_pop($output);
-			} elseif ($chunk == '.') {
-			} else {
-				$output[] = $chunk;
-			}
-		}
-		return implode('/', $output);
-	}
-
-	/**
-	 * Test a storage for availability
-	 *
-	 * @return bool
-	 */
-	public function test() {
-		try {
-			if ($this->stat('')) {
-				return true;
-			}
-			\OC::$server->get(LoggerInterface::class)->info("External storage not available: stat() failed");
-			return false;
-		} catch (\Exception $e) {
-			\OC::$server->get(LoggerInterface::class)->warning(
-				"External storage not available: " . $e->getMessage(),
-				['exception' => $e]
-			);
-			return false;
-		}
-	}
-
-	/**
-	 * get the free space in the storage
-	 *
-	 * @param string $path
-	 * @return int|float|false
-	 */
-	public function free_space($path) {
-		return \OCP\Files\FileInfo::SPACE_UNKNOWN;
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function isLocal() {
-		// the common implementation returns a temporary file by
-		// default, which is not local
-		return false;
-	}
-
-	/**
-	 * Check if the storage is an instance of $class or is a wrapper for a storage that is an instance of $class
-	 *
-	 * @param string $class
-	 * @return bool
-	 */
-	public function instanceOfStorage($class) {
-		if (ltrim($class, '\\') === 'OC\Files\Storage\Shared') {
-			// FIXME Temporary fix to keep existing checks working
-			$class = '\OCA\Files_Sharing\SharedStorage';
-		}
-		return is_a($this, $class);
-	}
-
-	/**
-	 * A custom storage implementation can return an url for direct download of a give file.
-	 *
-	 * For now the returned array can hold the parameter url - in future more attributes might follow.
-	 *
-	 * @param string $path
-	 * @return array|false
-	 */
-	public function getDirectDownload($path) {
-		return [];
-	}
-
-	/**
-	 * @inheritdoc
-	 * @throws InvalidPathException
-	 */
-	public function verifyPath($path, $fileName) {
-		// verify empty and dot files
-		$trimmed = trim($fileName);
-		if ($trimmed === '') {
-			throw new EmptyFileNameException();
-		}
-
-		if (\OC\Files\Filesystem::isIgnoredDir($trimmed)) {
-			throw new InvalidDirectoryException();
-		}
-
-		if (!\OC::$server->getDatabaseConnection()->supports4ByteText()) {
-			// verify database - e.g. mysql only 3-byte chars
-			if (preg_match('%(?:
+    use LocalTempFileTrait;
+
+    protected $cache;
+    protected $scanner;
+    protected $watcher;
+    protected $propagator;
+    protected $storageCache;
+    protected $updater;
+
+    protected $mountOptions = [];
+    protected $owner = null;
+
+    /** @var ?bool */
+    private $shouldLogLocks = null;
+    /** @var ?LoggerInterface */
+    private $logger;
+
+    public function __construct($parameters) {
+    }
+
+    /**
+     * Remove a file or folder
+     *
+     * @param string $path
+     * @return bool
+     */
+    protected function remove($path) {
+        if ($this->is_dir($path)) {
+            return $this->rmdir($path);
+        } elseif ($this->is_file($path)) {
+            return $this->unlink($path);
+        } else {
+            return false;
+        }
+    }
+
+    public function is_dir($path) {
+        return $this->filetype($path) === 'dir';
+    }
+
+    public function is_file($path) {
+        return $this->filetype($path) === 'file';
+    }
+
+    public function filesize($path): false|int|float {
+        if ($this->is_dir($path)) {
+            return 0; //by definition
+        } else {
+            $stat = $this->stat($path);
+            if (isset($stat['size'])) {
+                return $stat['size'];
+            } else {
+                return 0;
+            }
+        }
+    }
+
+    public function isReadable($path) {
+        // at least check whether it exists
+        // subclasses might want to implement this more thoroughly
+        return $this->file_exists($path);
+    }
+
+    public function isUpdatable($path) {
+        // at least check whether it exists
+        // subclasses might want to implement this more thoroughly
+        // a non-existing file/folder isn't updatable
+        return $this->file_exists($path);
+    }
+
+    public function isCreatable($path) {
+        if ($this->is_dir($path) && $this->isUpdatable($path)) {
+            return true;
+        }
+        return false;
+    }
+
+    public function isDeletable($path) {
+        if ($path === '' || $path === '/') {
+            return $this->isUpdatable($path);
+        }
+        $parent = dirname($path);
+        return $this->isUpdatable($parent) && $this->isUpdatable($path);
+    }
+
+    public function isSharable($path) {
+        return $this->isReadable($path);
+    }
+
+    public function getPermissions($path) {
+        $permissions = 0;
+        if ($this->isCreatable($path)) {
+            $permissions |= \OCP\Constants::PERMISSION_CREATE;
+        }
+        if ($this->isReadable($path)) {
+            $permissions |= \OCP\Constants::PERMISSION_READ;
+        }
+        if ($this->isUpdatable($path)) {
+            $permissions |= \OCP\Constants::PERMISSION_UPDATE;
+        }
+        if ($this->isDeletable($path)) {
+            $permissions |= \OCP\Constants::PERMISSION_DELETE;
+        }
+        if ($this->isSharable($path)) {
+            $permissions |= \OCP\Constants::PERMISSION_SHARE;
+        }
+        return $permissions;
+    }
+
+    public function filemtime($path) {
+        $stat = $this->stat($path);
+        if (isset($stat['mtime']) && $stat['mtime'] > 0) {
+            return $stat['mtime'];
+        } else {
+            return 0;
+        }
+    }
+
+    public function file_get_contents($path) {
+        $handle = $this->fopen($path, "r");
+        if (!$handle) {
+            return false;
+        }
+        $data = stream_get_contents($handle);
+        fclose($handle);
+        return $data;
+    }
+
+    public function file_put_contents($path, $data) {
+        $handle = $this->fopen($path, "w");
+        if (!$handle) {
+            return false;
+        }
+        $this->removeCachedFile($path);
+        $count = fwrite($handle, $data);
+        fclose($handle);
+        return $count;
+    }
+
+    public function rename($source, $target) {
+        $this->remove($target);
+
+        $this->removeCachedFile($source);
+        return $this->copy($source, $target) and $this->remove($source);
+    }
+
+    public function copy($source, $target) {
+        if ($this->is_dir($source)) {
+            $this->remove($target);
+            $dir = $this->opendir($source);
+            $this->mkdir($target);
+            while ($file = readdir($dir)) {
+                if (!Filesystem::isIgnoredDir($file)) {
+                    if (!$this->copy($source . '/' . $file, $target . '/' . $file)) {
+                        closedir($dir);
+                        return false;
+                    }
+                }
+            }
+            closedir($dir);
+            return true;
+        } else {
+            $sourceStream = $this->fopen($source, 'r');
+            $targetStream = $this->fopen($target, 'w');
+            [, $result] = \OC_Helper::streamCopy($sourceStream, $targetStream);
+            if (!$result) {
+                \OCP\Server::get(LoggerInterface::class)->warning("Failed to write data while copying $source to $target");
+            }
+            $this->removeCachedFile($target);
+            return $result;
+        }
+    }
+
+    public function getMimeType($path) {
+        if ($this->is_dir($path)) {
+            return 'httpd/unix-directory';
+        } elseif ($this->file_exists($path)) {
+            return \OC::$server->getMimeTypeDetector()->detectPath($path);
+        } else {
+            return false;
+        }
+    }
+
+    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, $raw);
+    }
+
+    public function search($query) {
+        return $this->searchInDir($query);
+    }
+
+    public function getLocalFile($path) {
+        return $this->getCachedFile($path);
+    }
+
+    /**
+     * @param string $path
+     * @param string $target
+     */
+    private function addLocalFolder($path, $target) {
+        $dh = $this->opendir($path);
+        if (is_resource($dh)) {
+            while (($file = readdir($dh)) !== false) {
+                if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
+                    if ($this->is_dir($path . '/' . $file)) {
+                        mkdir($target . '/' . $file);
+                        $this->addLocalFolder($path . '/' . $file, $target . '/' . $file);
+                    } else {
+                        $tmp = $this->toTmpFile($path . '/' . $file);
+                        rename($tmp, $target . '/' . $file);
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * @param string $query
+     * @param string $dir
+     * @return array
+     */
+    protected function searchInDir($query, $dir = '') {
+        $files = [];
+        $dh = $this->opendir($dir);
+        if (is_resource($dh)) {
+            while (($item = readdir($dh)) !== false) {
+                if (\OC\Files\Filesystem::isIgnoredDir($item)) {
+                    continue;
+                }
+                if (strstr(strtolower($item), strtolower($query)) !== false) {
+                    $files[] = $dir . '/' . $item;
+                }
+                if ($this->is_dir($dir . '/' . $item)) {
+                    $files = array_merge($files, $this->searchInDir($query, $dir . '/' . $item));
+                }
+            }
+        }
+        closedir($dh);
+        return $files;
+    }
+
+    /**
+     * Check if a file or folder has been updated since $time
+     *
+     * The method is only used to check if the cache needs to be updated. Storage backends that don't support checking
+     * the mtime should always return false here. As a result storage implementations that always return false expect
+     * exclusive access to the backend and will not pick up files that have been added in a way that circumvents
+     * Nextcloud filesystem.
+     *
+     * @param string $path
+     * @param int $time
+     * @return bool
+     */
+    public function hasUpdated($path, $time) {
+        return $this->filemtime($path) > $time;
+    }
+
+    public function getCache($path = '', $storage = null) {
+        if (!$storage) {
+            $storage = $this;
+        }
+        if (!isset($storage->cache)) {
+            $storage->cache = new Cache($storage);
+        }
+        return $storage->cache;
+    }
+
+    public function getScanner($path = '', $storage = null) {
+        if (!$storage) {
+            $storage = $this;
+        }
+        if (!isset($storage->scanner)) {
+            $storage->scanner = new Scanner($storage);
+        }
+        return $storage->scanner;
+    }
+
+    public function getWatcher($path = '', $storage = null) {
+        if (!$storage) {
+            $storage = $this;
+        }
+        if (!isset($this->watcher)) {
+            $this->watcher = new Watcher($storage);
+            $globalPolicy = \OC::$server->getConfig()->getSystemValue('filesystem_check_changes', Watcher::CHECK_NEVER);
+            $this->watcher->setPolicy((int)$this->getMountOption('filesystem_check_changes', $globalPolicy));
+        }
+        return $this->watcher;
+    }
+
+    /**
+     * get a propagator instance for the cache
+     *
+     * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
+     * @return \OC\Files\Cache\Propagator
+     */
+    public function getPropagator($storage = null) {
+        if (!$storage) {
+            $storage = $this;
+        }
+        if (!isset($storage->propagator)) {
+            $config = \OC::$server->getSystemConfig();
+            $storage->propagator = new Propagator($storage, \OC::$server->getDatabaseConnection(), ['appdata_' . $config->getValue('instanceid')]);
+        }
+        return $storage->propagator;
+    }
+
+    public function getUpdater($storage = null) {
+        if (!$storage) {
+            $storage = $this;
+        }
+        if (!isset($storage->updater)) {
+            $storage->updater = new Updater($storage);
+        }
+        return $storage->updater;
+    }
+
+    public function getStorageCache($storage = null) {
+        if (!$storage) {
+            $storage = $this;
+        }
+        if (!isset($this->storageCache)) {
+            $this->storageCache = new \OC\Files\Cache\Storage($storage);
+        }
+        return $this->storageCache;
+    }
+
+    /**
+     * get the owner of a path
+     *
+     * @param string $path The path to get the owner
+     * @return string|false uid or false
+     */
+    public function getOwner($path) {
+        if ($this->owner === null) {
+            $this->owner = \OC_User::getUser();
+        }
+
+        return $this->owner;
+    }
+
+    /**
+     * get the ETag for a file or folder
+     *
+     * @param string $path
+     * @return string
+     */
+    public function getETag($path) {
+        return uniqid();
+    }
+
+    /**
+     * clean a path, i.e. remove all redundant '.' and '..'
+     * making sure that it can't point to higher than '/'
+     *
+     * @param string $path The path to clean
+     * @return string cleaned path
+     */
+    public function cleanPath($path) {
+        if (strlen($path) == 0 or $path[0] != '/') {
+            $path = '/' . $path;
+        }
+
+        $output = [];
+        foreach (explode('/', $path) as $chunk) {
+            if ($chunk == '..') {
+                array_pop($output);
+            } elseif ($chunk == '.') {
+            } else {
+                $output[] = $chunk;
+            }
+        }
+        return implode('/', $output);
+    }
+
+    /**
+     * Test a storage for availability
+     *
+     * @return bool
+     */
+    public function test() {
+        try {
+            if ($this->stat('')) {
+                return true;
+            }
+            \OC::$server->get(LoggerInterface::class)->info("External storage not available: stat() failed");
+            return false;
+        } catch (\Exception $e) {
+            \OC::$server->get(LoggerInterface::class)->warning(
+                "External storage not available: " . $e->getMessage(),
+                ['exception' => $e]
+            );
+            return false;
+        }
+    }
+
+    /**
+     * get the free space in the storage
+     *
+     * @param string $path
+     * @return int|float|false
+     */
+    public function free_space($path) {
+        return \OCP\Files\FileInfo::SPACE_UNKNOWN;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isLocal() {
+        // the common implementation returns a temporary file by
+        // default, which is not local
+        return false;
+    }
+
+    /**
+     * Check if the storage is an instance of $class or is a wrapper for a storage that is an instance of $class
+     *
+     * @param string $class
+     * @return bool
+     */
+    public function instanceOfStorage($class) {
+        if (ltrim($class, '\\') === 'OC\Files\Storage\Shared') {
+            // FIXME Temporary fix to keep existing checks working
+            $class = '\OCA\Files_Sharing\SharedStorage';
+        }
+        return is_a($this, $class);
+    }
+
+    /**
+     * A custom storage implementation can return an url for direct download of a give file.
+     *
+     * For now the returned array can hold the parameter url - in future more attributes might follow.
+     *
+     * @param string $path
+     * @return array|false
+     */
+    public function getDirectDownload($path) {
+        return [];
+    }
+
+    /**
+     * @inheritdoc
+     * @throws InvalidPathException
+     */
+    public function verifyPath($path, $fileName) {
+        // verify empty and dot files
+        $trimmed = trim($fileName);
+        if ($trimmed === '') {
+            throw new EmptyFileNameException();
+        }
+
+        if (\OC\Files\Filesystem::isIgnoredDir($trimmed)) {
+            throw new InvalidDirectoryException();
+        }
+
+        if (!\OC::$server->getDatabaseConnection()->supports4ByteText()) {
+            // verify database - e.g. mysql only 3-byte chars
+            if (preg_match('%(?:
       \xF0[\x90-\xBF][\x80-\xBF]{2}      # planes 1-3
     | [\xF1-\xF3][\x80-\xBF]{3}          # planes 4-15
     | \xF4[\x80-\x8F][\x80-\xBF]{2}      # plane 16
 )%xs', $fileName)) {
-				throw new InvalidCharacterInPathException();
-			}
-		}
-
-		// 255 characters is the limit on common file systems (ext/xfs)
-		// oc_filecache has a 250 char length limit for the filename
-		if (isset($fileName[250])) {
-			throw new FileNameTooLongException();
-		}
-
-		// NOTE: $path will remain unverified for now
-		$this->verifyPosixPath($fileName);
-	}
-
-	/**
-	 * @param string $fileName
-	 * @throws InvalidPathException
-	 */
-	protected function verifyPosixPath($fileName) {
-		$this->scanForInvalidCharacters($fileName, "\\/");
-		$fileName = trim($fileName);
-		$reservedNames = ['*'];
-		if (in_array($fileName, $reservedNames)) {
-			throw new ReservedWordException();
-		}
-	}
-
-	/**
-	 * @param string $fileName
-	 * @param string $invalidChars
-	 * @throws InvalidPathException
-	 */
-	private function scanForInvalidCharacters($fileName, $invalidChars) {
-		foreach (str_split($invalidChars) as $char) {
-			if (strpos($fileName, $char) !== false) {
-				throw new InvalidCharacterInPathException();
-			}
-		}
-
-		$sanitizedFileName = filter_var($fileName, FILTER_UNSAFE_RAW, FILTER_FLAG_STRIP_LOW);
-		if ($sanitizedFileName !== $fileName) {
-			throw new InvalidCharacterInPathException();
-		}
-	}
-
-	/**
-	 * @param array $options
-	 */
-	public function setMountOptions(array $options) {
-		$this->mountOptions = $options;
-	}
-
-	/**
-	 * @param string $name
-	 * @param mixed $default
-	 * @return mixed
-	 */
-	public function getMountOption($name, $default = null) {
-		return isset($this->mountOptions[$name]) ? $this->mountOptions[$name] : $default;
-	}
-
-	/**
-	 * @param IStorage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $preserveMtime
-	 * @return bool
-	 */
-	public function copyFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = false) {
-		if ($sourceStorage === $this) {
-			return $this->copy($sourceInternalPath, $targetInternalPath);
-		}
-
-		if ($sourceStorage->is_dir($sourceInternalPath)) {
-			$dh = $sourceStorage->opendir($sourceInternalPath);
-			$result = $this->mkdir($targetInternalPath);
-			if (is_resource($dh)) {
-				$result = true;
-				while ($result and ($file = readdir($dh)) !== false) {
-					if (!Filesystem::isIgnoredDir($file)) {
-						$result &= $this->copyFromStorage($sourceStorage, $sourceInternalPath . '/' . $file, $targetInternalPath . '/' . $file);
-					}
-				}
-			}
-		} else {
-			$source = $sourceStorage->fopen($sourceInternalPath, 'r');
-			$result = false;
-			if ($source) {
-				try {
-					$this->writeStream($targetInternalPath, $source);
-					$result = true;
-				} catch (\Exception $e) {
-					\OC::$server->get(LoggerInterface::class)->warning('Failed to copy stream to storage', ['exception' => $e]);
-				}
-			}
-
-			if ($result && $preserveMtime) {
-				$mtime = $sourceStorage->filemtime($sourceInternalPath);
-				$this->touch($targetInternalPath, is_int($mtime) ? $mtime : null);
-			}
-
-			if (!$result) {
-				// delete partially written target file
-				$this->unlink($targetInternalPath);
-				// delete cache entry that was created by fopen
-				$this->getCache()->remove($targetInternalPath);
-			}
-		}
-		return (bool)$result;
-	}
-
-	/**
-	 * Check if a storage is the same as the current one, including wrapped storages
-	 *
-	 * @param IStorage $storage
-	 * @return bool
-	 */
-	private function isSameStorage(IStorage $storage): bool {
-		while ($storage->instanceOfStorage(Wrapper::class)) {
-			/**
-			 * @var Wrapper $sourceStorage
-			 */
-			$storage = $storage->getWrapperStorage();
-		}
-
-		return $storage === $this;
-	}
-
-	/**
-	 * @param IStorage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function moveFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($this->isSameStorage($sourceStorage)) {
-			// resolve any jailed paths
-			while ($sourceStorage->instanceOfStorage(Jail::class)) {
-				/**
-				 * @var Jail $sourceStorage
-				 */
-				$sourceInternalPath = $sourceStorage->getUnjailedPath($sourceInternalPath);
-				$sourceStorage = $sourceStorage->getUnjailedStorage();
-			}
-
-			return $this->rename($sourceInternalPath, $targetInternalPath);
-		}
-
-		if (!$sourceStorage->isDeletable($sourceInternalPath)) {
-			return false;
-		}
-
-		$result = $this->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, true);
-		if ($result) {
-			if ($sourceStorage->is_dir($sourceInternalPath)) {
-				$result = $sourceStorage->rmdir($sourceInternalPath);
-			} else {
-				$result = $sourceStorage->unlink($sourceInternalPath);
-			}
-		}
-		return $result;
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function getMetaData($path) {
-		if (Filesystem::isFileBlacklisted($path)) {
-			throw new ForbiddenException('Invalid path: ' . $path, false);
-		}
-
-		$permissions = $this->getPermissions($path);
-		if (!$permissions & \OCP\Constants::PERMISSION_READ) {
-			//can't read, nothing we can do
-			return null;
-		}
-
-		$data = [];
-		$data['mimetype'] = $this->getMimeType($path);
-		$data['mtime'] = $this->filemtime($path);
-		if ($data['mtime'] === false) {
-			$data['mtime'] = time();
-		}
-		if ($data['mimetype'] == 'httpd/unix-directory') {
-			$data['size'] = -1; //unknown
-		} else {
-			$data['size'] = $this->filesize($path);
-		}
-		$data['etag'] = $this->getETag($path);
-		$data['storage_mtime'] = $data['mtime'];
-		$data['permissions'] = $permissions;
-		$data['name'] = basename($path);
-
-		return $data;
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function acquireLock($path, $type, ILockingProvider $provider) {
-		$logger = $this->getLockLogger();
-		if ($logger) {
-			$typeString = ($type === ILockingProvider::LOCK_SHARED) ? 'shared' : 'exclusive';
-			$logger->info(
-				sprintf(
-					'acquire %s lock on "%s" on storage "%s"',
-					$typeString,
-					$path,
-					$this->getId()
-				),
-				[
-					'app' => 'locking',
-				]
-			);
-		}
-		try {
-			$provider->acquireLock('files/' . md5($this->getId() . '::' . trim($path, '/')), $type, $this->getId() . '::' . $path);
-		} catch (LockedException $e) {
-			if ($logger) {
-				$logger->info($e->getMessage(), ['exception' => $e]);
-			}
-			throw $e;
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function releaseLock($path, $type, ILockingProvider $provider) {
-		$logger = $this->getLockLogger();
-		if ($logger) {
-			$typeString = ($type === ILockingProvider::LOCK_SHARED) ? 'shared' : 'exclusive';
-			$logger->info(
-				sprintf(
-					'release %s lock on "%s" on storage "%s"',
-					$typeString,
-					$path,
-					$this->getId()
-				),
-				[
-					'app' => 'locking',
-				]
-			);
-		}
-		try {
-			$provider->releaseLock('files/' . md5($this->getId() . '::' . trim($path, '/')), $type);
-		} catch (LockedException $e) {
-			if ($logger) {
-				$logger->info($e->getMessage(), ['exception' => $e]);
-			}
-			throw $e;
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function changeLock($path, $type, ILockingProvider $provider) {
-		$logger = $this->getLockLogger();
-		if ($logger) {
-			$typeString = ($type === ILockingProvider::LOCK_SHARED) ? 'shared' : 'exclusive';
-			$logger->info(
-				sprintf(
-					'change lock on "%s" to %s on storage "%s"',
-					$path,
-					$typeString,
-					$this->getId()
-				),
-				[
-					'app' => 'locking',
-				]
-			);
-		}
-		try {
-			$provider->changeLock('files/' . md5($this->getId() . '::' . trim($path, '/')), $type);
-		} catch (LockedException $e) {
-			if ($logger) {
-				$logger->info($e->getMessage(), ['exception' => $e]);
-			}
-			throw $e;
-		}
-	}
-
-	private function getLockLogger(): ?LoggerInterface {
-		if (is_null($this->shouldLogLocks)) {
-			$this->shouldLogLocks = \OC::$server->getConfig()->getSystemValue('filelocking.debug', false);
-			$this->logger = $this->shouldLogLocks ? \OC::$server->get(LoggerInterface::class) : null;
-		}
-		return $this->logger;
-	}
-
-	/**
-	 * @return array [ available, last_checked ]
-	 */
-	public function getAvailability() {
-		return $this->getStorageCache()->getAvailability();
-	}
-
-	/**
-	 * @param bool $isAvailable
-	 */
-	public function setAvailability($isAvailable) {
-		$this->getStorageCache()->setAvailability($isAvailable);
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function needsPartFile() {
-		return true;
-	}
-
-	/**
-	 * fallback implementation
-	 *
-	 * @param string $path
-	 * @param resource $stream
-	 * @param int $size
-	 * @return int
-	 */
-	public function writeStream(string $path, $stream, int $size = null): int {
-		$target = $this->fopen($path, 'w');
-		if (!$target) {
-			throw new GenericFileException("Failed to open $path for writing");
-		}
-		try {
-			[$count, $result] = \OC_Helper::streamCopy($stream, $target);
-			if (!$result) {
-				throw new GenericFileException("Failed to copy stream");
-			}
-		} finally {
-			fclose($target);
-			fclose($stream);
-		}
-		return $count;
-	}
-
-	public function getDirectoryContent($directory): \Traversable {
-		$dh = $this->opendir($directory);
-		if (is_resource($dh)) {
-			$basePath = rtrim($directory, '/');
-			while (($file = readdir($dh)) !== false) {
-				if (!Filesystem::isIgnoredDir($file)) {
-					$childPath = $basePath . '/' . trim($file, '/');
-					$metadata = $this->getMetaData($childPath);
-					if ($metadata !== null) {
-						yield $metadata;
-					}
-				}
-			}
-		}
-	}
+                throw new InvalidCharacterInPathException();
+            }
+        }
+
+        // 255 characters is the limit on common file systems (ext/xfs)
+        // oc_filecache has a 250 char length limit for the filename
+        if (isset($fileName[250])) {
+            throw new FileNameTooLongException();
+        }
+
+        // NOTE: $path will remain unverified for now
+        $this->verifyPosixPath($fileName);
+    }
+
+    /**
+     * @param string $fileName
+     * @throws InvalidPathException
+     */
+    protected function verifyPosixPath($fileName) {
+        $this->scanForInvalidCharacters($fileName, "\\/");
+        $fileName = trim($fileName);
+        $reservedNames = ['*'];
+        if (in_array($fileName, $reservedNames)) {
+            throw new ReservedWordException();
+        }
+    }
+
+    /**
+     * @param string $fileName
+     * @param string $invalidChars
+     * @throws InvalidPathException
+     */
+    private function scanForInvalidCharacters($fileName, $invalidChars) {
+        foreach (str_split($invalidChars) as $char) {
+            if (strpos($fileName, $char) !== false) {
+                throw new InvalidCharacterInPathException();
+            }
+        }
+
+        $sanitizedFileName = filter_var($fileName, FILTER_UNSAFE_RAW, FILTER_FLAG_STRIP_LOW);
+        if ($sanitizedFileName !== $fileName) {
+            throw new InvalidCharacterInPathException();
+        }
+    }
+
+    /**
+     * @param array $options
+     */
+    public function setMountOptions(array $options) {
+        $this->mountOptions = $options;
+    }
+
+    /**
+     * @param string $name
+     * @param mixed $default
+     * @return mixed
+     */
+    public function getMountOption($name, $default = null) {
+        return isset($this->mountOptions[$name]) ? $this->mountOptions[$name] : $default;
+    }
+
+    /**
+     * @param IStorage $sourceStorage
+     * @param string $sourceInternalPath
+     * @param string $targetInternalPath
+     * @param bool $preserveMtime
+     * @return bool
+     */
+    public function copyFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = false) {
+        if ($sourceStorage === $this) {
+            return $this->copy($sourceInternalPath, $targetInternalPath);
+        }
+
+        if ($sourceStorage->is_dir($sourceInternalPath)) {
+            $dh = $sourceStorage->opendir($sourceInternalPath);
+            $result = $this->mkdir($targetInternalPath);
+            if (is_resource($dh)) {
+                $result = true;
+                while ($result and ($file = readdir($dh)) !== false) {
+                    if (!Filesystem::isIgnoredDir($file)) {
+                        $result &= $this->copyFromStorage($sourceStorage, $sourceInternalPath . '/' . $file, $targetInternalPath . '/' . $file);
+                    }
+                }
+            }
+        } else {
+            $source = $sourceStorage->fopen($sourceInternalPath, 'r');
+            $result = false;
+            if ($source) {
+                try {
+                    $this->writeStream($targetInternalPath, $source);
+                    $result = true;
+                } catch (\Exception $e) {
+                    \OC::$server->get(LoggerInterface::class)->warning('Failed to copy stream to storage', ['exception' => $e]);
+                }
+            }
+
+            if ($result && $preserveMtime) {
+                $mtime = $sourceStorage->filemtime($sourceInternalPath);
+                $this->touch($targetInternalPath, is_int($mtime) ? $mtime : null);
+            }
+
+            if (!$result) {
+                // delete partially written target file
+                $this->unlink($targetInternalPath);
+                // delete cache entry that was created by fopen
+                $this->getCache()->remove($targetInternalPath);
+            }
+        }
+        return (bool)$result;
+    }
+
+    /**
+     * Check if a storage is the same as the current one, including wrapped storages
+     *
+     * @param IStorage $storage
+     * @return bool
+     */
+    private function isSameStorage(IStorage $storage): bool {
+        while ($storage->instanceOfStorage(Wrapper::class)) {
+            /**
+             * @var Wrapper $sourceStorage
+             */
+            $storage = $storage->getWrapperStorage();
+        }
+
+        return $storage === $this;
+    }
+
+    /**
+     * @param IStorage $sourceStorage
+     * @param string $sourceInternalPath
+     * @param string $targetInternalPath
+     * @return bool
+     */
+    public function moveFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
+        if ($this->isSameStorage($sourceStorage)) {
+            // resolve any jailed paths
+            while ($sourceStorage->instanceOfStorage(Jail::class)) {
+                /**
+                 * @var Jail $sourceStorage
+                 */
+                $sourceInternalPath = $sourceStorage->getUnjailedPath($sourceInternalPath);
+                $sourceStorage = $sourceStorage->getUnjailedStorage();
+            }
+
+            return $this->rename($sourceInternalPath, $targetInternalPath);
+        }
+
+        if (!$sourceStorage->isDeletable($sourceInternalPath)) {
+            return false;
+        }
+
+        $result = $this->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, true);
+        if ($result) {
+            if ($sourceStorage->is_dir($sourceInternalPath)) {
+                $result = $sourceStorage->rmdir($sourceInternalPath);
+            } else {
+                $result = $sourceStorage->unlink($sourceInternalPath);
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getMetaData($path) {
+        if (Filesystem::isFileBlacklisted($path)) {
+            throw new ForbiddenException('Invalid path: ' . $path, false);
+        }
+
+        $permissions = $this->getPermissions($path);
+        if (!$permissions & \OCP\Constants::PERMISSION_READ) {
+            //can't read, nothing we can do
+            return null;
+        }
+
+        $data = [];
+        $data['mimetype'] = $this->getMimeType($path);
+        $data['mtime'] = $this->filemtime($path);
+        if ($data['mtime'] === false) {
+            $data['mtime'] = time();
+        }
+        if ($data['mimetype'] == 'httpd/unix-directory') {
+            $data['size'] = -1; //unknown
+        } else {
+            $data['size'] = $this->filesize($path);
+        }
+        $data['etag'] = $this->getETag($path);
+        $data['storage_mtime'] = $data['mtime'];
+        $data['permissions'] = $permissions;
+        $data['name'] = basename($path);
+
+        return $data;
+    }
+
+    /**
+     * @param string $path
+     * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
+     * @param \OCP\Lock\ILockingProvider $provider
+     * @throws \OCP\Lock\LockedException
+     */
+    public function acquireLock($path, $type, ILockingProvider $provider) {
+        $logger = $this->getLockLogger();
+        if ($logger) {
+            $typeString = ($type === ILockingProvider::LOCK_SHARED) ? 'shared' : 'exclusive';
+            $logger->info(
+                sprintf(
+                    'acquire %s lock on "%s" on storage "%s"',
+                    $typeString,
+                    $path,
+                    $this->getId()
+                ),
+                [
+                    'app' => 'locking',
+                ]
+            );
+        }
+        try {
+            $provider->acquireLock('files/' . md5($this->getId() . '::' . trim($path, '/')), $type, $this->getId() . '::' . $path);
+        } catch (LockedException $e) {
+            if ($logger) {
+                $logger->info($e->getMessage(), ['exception' => $e]);
+            }
+            throw $e;
+        }
+    }
+
+    /**
+     * @param string $path
+     * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
+     * @param \OCP\Lock\ILockingProvider $provider
+     * @throws \OCP\Lock\LockedException
+     */
+    public function releaseLock($path, $type, ILockingProvider $provider) {
+        $logger = $this->getLockLogger();
+        if ($logger) {
+            $typeString = ($type === ILockingProvider::LOCK_SHARED) ? 'shared' : 'exclusive';
+            $logger->info(
+                sprintf(
+                    'release %s lock on "%s" on storage "%s"',
+                    $typeString,
+                    $path,
+                    $this->getId()
+                ),
+                [
+                    'app' => 'locking',
+                ]
+            );
+        }
+        try {
+            $provider->releaseLock('files/' . md5($this->getId() . '::' . trim($path, '/')), $type);
+        } catch (LockedException $e) {
+            if ($logger) {
+                $logger->info($e->getMessage(), ['exception' => $e]);
+            }
+            throw $e;
+        }
+    }
+
+    /**
+     * @param string $path
+     * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
+     * @param \OCP\Lock\ILockingProvider $provider
+     * @throws \OCP\Lock\LockedException
+     */
+    public function changeLock($path, $type, ILockingProvider $provider) {
+        $logger = $this->getLockLogger();
+        if ($logger) {
+            $typeString = ($type === ILockingProvider::LOCK_SHARED) ? 'shared' : 'exclusive';
+            $logger->info(
+                sprintf(
+                    'change lock on "%s" to %s on storage "%s"',
+                    $path,
+                    $typeString,
+                    $this->getId()
+                ),
+                [
+                    'app' => 'locking',
+                ]
+            );
+        }
+        try {
+            $provider->changeLock('files/' . md5($this->getId() . '::' . trim($path, '/')), $type);
+        } catch (LockedException $e) {
+            if ($logger) {
+                $logger->info($e->getMessage(), ['exception' => $e]);
+            }
+            throw $e;
+        }
+    }
+
+    private function getLockLogger(): ?LoggerInterface {
+        if (is_null($this->shouldLogLocks)) {
+            $this->shouldLogLocks = \OC::$server->getConfig()->getSystemValue('filelocking.debug', false);
+            $this->logger = $this->shouldLogLocks ? \OC::$server->get(LoggerInterface::class) : null;
+        }
+        return $this->logger;
+    }
+
+    /**
+     * @return array [ available, last_checked ]
+     */
+    public function getAvailability() {
+        return $this->getStorageCache()->getAvailability();
+    }
+
+    /**
+     * @param bool $isAvailable
+     */
+    public function setAvailability($isAvailable) {
+        $this->getStorageCache()->setAvailability($isAvailable);
+    }
+
+    /**
+     * @return bool
+     */
+    public function needsPartFile() {
+        return true;
+    }
+
+    /**
+     * fallback implementation
+     *
+     * @param string $path
+     * @param resource $stream
+     * @param int $size
+     * @return int
+     */
+    public function writeStream(string $path, $stream, int $size = null): int {
+        $target = $this->fopen($path, 'w');
+        if (!$target) {
+            throw new GenericFileException("Failed to open $path for writing");
+        }
+        try {
+            [$count, $result] = \OC_Helper::streamCopy($stream, $target);
+            if (!$result) {
+                throw new GenericFileException("Failed to copy stream");
+            }
+        } finally {
+            fclose($target);
+            fclose($stream);
+        }
+        return $count;
+    }
+
+    public function getDirectoryContent($directory): \Traversable {
+        $dh = $this->opendir($directory);
+        if (is_resource($dh)) {
+            $basePath = rtrim($directory, '/');
+            while (($file = readdir($dh)) !== false) {
+                if (!Filesystem::isIgnoredDir($file)) {
+                    $childPath = $basePath . '/' . trim($file, '/');
+                    $metadata = $this->getMetaData($childPath);
+                    if ($metadata !== null) {
+                        yield $metadata;
+                    }
+                }
+            }
+        }
+    }
 }

apps/files_external/lib/Command/Notify.php

Indentation +312 added lines, -312 removed lines

@@ -50,316 +50,316 @@
 use Symfony\Component\Console\Output\OutputInterface;
 
 class Notify extends Base {
-	private GlobalStoragesService $globalService;
-	private IDBConnection $connection;
-	private LoggerInterface $logger;
-	/** @var IUserManager */
-	private $userManager;
-
-	public function __construct(
-		GlobalStoragesService $globalService,
-		IDBConnection $connection,
-		LoggerInterface $logger,
-		IUserManager $userManager
-	) {
-		parent::__construct();
-		$this->globalService = $globalService;
-		$this->connection = $connection;
-		$this->logger = $logger;
-		$this->userManager = $userManager;
-	}
-
-	protected function configure(): void {
-		$this
-			->setName('files_external:notify')
-			->setDescription('Listen for active update notifications for a configured external mount')
-			->addArgument(
-				'mount_id',
-				InputArgument::REQUIRED,
-				'the mount id of the mount to listen to'
-			)->addOption(
-				'user',
-				'u',
-				InputOption::VALUE_REQUIRED,
-				'The username for the remote mount (required only for some mount configuration that don\'t store credentials)'
-			)->addOption(
-				'password',
-				'p',
-				InputOption::VALUE_REQUIRED,
-				'The password for the remote mount (required only for some mount configuration that don\'t store credentials)'
-			)->addOption(
-				'path',
-				'',
-				InputOption::VALUE_REQUIRED,
-				'The directory in the storage to listen for updates in',
-				'/'
-			)->addOption(
-				'no-self-check',
-				'',
-				InputOption::VALUE_NONE,
-				'Disable self check on startup'
-			)->addOption(
-				'dry-run',
-				'',
-				InputOption::VALUE_NONE,
-				'Don\'t make any changes, only log detected changes'
-			);
-		parent::configure();
-	}
-
-	private function getUserOption(InputInterface $input): ?string {
-		if ($input->getOption('user')) {
-			return (string)$input->getOption('user');
-		} elseif (isset($_ENV['NOTIFY_USER'])) {
-			return $_ENV['NOTIFY_USER'];
-		} elseif (isset($_SERVER['NOTIFY_USER'])) {
-			return $_SERVER['NOTIFY_USER'];
-		} else {
-			return null;
-		}
-	}
-
-	private function getPasswordOption(InputInterface $input): ?string {
-		if ($input->getOption('password')) {
-			return (string)$input->getOption('password');
-		} elseif (isset($_ENV['NOTIFY_PASSWORD'])) {
-			return $_ENV['NOTIFY_PASSWORD'];
-		} elseif (isset($_SERVER['NOTIFY_PASSWORD'])) {
-			return $_SERVER['NOTIFY_PASSWORD'];
-		} else {
-			return null;
-		}
-	}
-
-	protected function execute(InputInterface $input, OutputInterface $output): int {
-		$mount = $this->globalService->getStorage($input->getArgument('mount_id'));
-		if (is_null($mount)) {
-			$output->writeln('<error>Mount not found</error>');
-			return 1;
-		}
-		$noAuth = false;
-
-		$userOption = $this->getUserOption($input);
-		$passwordOption = $this->getPasswordOption($input);
-
-		// if only the user is provided, we get the user object to pass along to the auth backend
-		// this allows using saved user credentials
-		$user = ($userOption && !$passwordOption) ? $this->userManager->get($userOption) : null;
-
-		try {
-			$authBackend = $mount->getAuthMechanism();
-			$authBackend->manipulateStorageConfig($mount, $user);
-		} catch (InsufficientDataForMeaningfulAnswerException $e) {
-			$noAuth = true;
-		} catch (StorageNotAvailableException $e) {
-			$noAuth = true;
-		}
-
-		if ($userOption) {
-			$mount->setBackendOption('user', $userOption);
-		}
-		if ($passwordOption) {
-			$mount->setBackendOption('password', $passwordOption);
-		}
-
-		try {
-			$backend = $mount->getBackend();
-			$backend->manipulateStorageConfig($mount, $user);
-		} catch (InsufficientDataForMeaningfulAnswerException $e) {
-			$noAuth = true;
-		} catch (StorageNotAvailableException $e) {
-			$noAuth = true;
-		}
-
-		try {
-			$storage = $this->createStorage($mount);
-		} catch (\Exception $e) {
-			$output->writeln('<error>Error while trying to create storage</error>');
-			if ($noAuth) {
-				$output->writeln('<error>Username and/or password required</error>');
-			}
-			return 1;
-		}
-		if (!$storage instanceof INotifyStorage) {
-			$output->writeln('<error>Mount of type "' . $mount->getBackend()->getText() . '" does not support active update notifications</error>');
-			return 1;
-		}
-
-		$dryRun = $input->getOption('dry-run');
-		if ($dryRun && $output->getVerbosity() < OutputInterface::VERBOSITY_VERBOSE) {
-			$output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE);
-		}
-
-		$path = trim($input->getOption('path'), '/');
-		$notifyHandler = $storage->notify($path);
-
-		if (!$input->getOption('no-self-check')) {
-			$this->selfTest($storage, $notifyHandler, $output);
-		}
-
-		$notifyHandler->listen(function (IChange $change) use ($mount, $output, $dryRun) {
-			$this->logUpdate($change, $output);
-			if ($change instanceof IRenameChange) {
-				$this->markParentAsOutdated($mount->getId(), $change->getTargetPath(), $output, $dryRun);
-			}
-			$this->markParentAsOutdated($mount->getId(), $change->getPath(), $output, $dryRun);
-		});
-		return 0;
-	}
-
-	private function createStorage(StorageConfig $mount): IStorage {
-		$class = $mount->getBackend()->getStorageClass();
-		return new $class($mount->getBackendOptions());
-	}
-
-	private function markParentAsOutdated($mountId, $path, OutputInterface $output, bool $dryRun) {
-		$parent = ltrim(dirname($path), '/');
-		if ($parent === '.') {
-			$parent = '';
-		}
-
-		try {
-			$storages = $this->getStorageIds($mountId, $parent);
-		} catch (DriverException $ex) {
-			$this->logger->warning('Error while trying to find correct storage ids.', ['exception' => $ex]);
-			$this->connection = $this->reconnectToDatabase($this->connection, $output);
-			$output->writeln('<info>Needed to reconnect to the database</info>');
-			$storages = $this->getStorageIds($mountId, $path);
-		}
-		if (count($storages) === 0) {
-			$output->writeln("  no users found with access to '$parent', skipping", OutputInterface::VERBOSITY_VERBOSE);
-			return;
-		}
-
-		$users = array_map(function (array $storage) {
-			return $storage['user_id'];
-		}, $storages);
-
-		$output->writeln("  marking '$parent' as outdated for " . implode(', ', $users), OutputInterface::VERBOSITY_VERBOSE);
-
-		$storageIds = array_map(function (array $storage) {
-			return intval($storage['storage_id']);
-		}, $storages);
-		$storageIds = array_values(array_unique($storageIds));
-
-		if ($dryRun) {
-			$output->writeln("  dry-run: skipping database write");
-		} else {
-			$result = $this->updateParent($storageIds, $parent);
-			if ($result === 0) {
-				//TODO: Find existing parent further up the tree in the database and register that folder instead.
-				$this->logger->info('Failed updating parent for "' . $path . '" while trying to register change. It may not exist in the filecache.');
-			}
-		}
-	}
-
-	private function logUpdate(IChange $change, OutputInterface $output) {
-		switch ($change->getType()) {
-			case INotifyStorage::NOTIFY_ADDED:
-				$text = 'added';
-				break;
-			case INotifyStorage::NOTIFY_MODIFIED:
-				$text = 'modified';
-				break;
-			case INotifyStorage::NOTIFY_REMOVED:
-				$text = 'removed';
-				break;
-			case INotifyStorage::NOTIFY_RENAMED:
-				$text = 'renamed';
-				break;
-			default:
-				return;
-		}
-
-		$text .= ' ' . $change->getPath();
-		if ($change instanceof IRenameChange) {
-			$text .= ' to ' . $change->getTargetPath();
-		}
-
-		$output->writeln($text, OutputInterface::VERBOSITY_VERBOSE);
-	}
-
-	private function getStorageIds(int $mountId, string $path): array {
-		$pathHash = md5(trim((string)\OC_Util::normalizeUnicode($path), '/'));
-		$qb = $this->connection->getQueryBuilder();
-		return $qb
-			->select('storage_id', 'user_id')
-			->from('mounts', 'm')
-			->innerJoin('m', 'filecache', 'f', $qb->expr()->eq('m.storage_id', 'f.storage'))
-			->where($qb->expr()->eq('mount_id', $qb->createNamedParameter($mountId, IQueryBuilder::PARAM_INT)))
-			->andWhere($qb->expr()->eq('path_hash', $qb->createNamedParameter($pathHash, IQueryBuilder::PARAM_STR)))
-			->execute()
-			->fetchAll();
-	}
-
-	private function updateParent(array $storageIds, string $parent): int {
-		$pathHash = md5(trim((string)\OC_Util::normalizeUnicode($parent), '/'));
-		$qb = $this->connection->getQueryBuilder();
-		return $qb
-			->update('filecache')
-			->set('size', $qb->createNamedParameter(-1, IQueryBuilder::PARAM_INT))
-			->where($qb->expr()->in('storage', $qb->createNamedParameter($storageIds, IQueryBuilder::PARAM_INT_ARRAY, ':storage_ids')))
-			->andWhere($qb->expr()->eq('path_hash', $qb->createNamedParameter($pathHash, IQueryBuilder::PARAM_STR)))
-			->executeStatement();
-	}
-
-	private function reconnectToDatabase(IDBConnection $connection, OutputInterface $output): IDBConnection {
-		try {
-			$connection->close();
-		} catch (\Exception $ex) {
-			$this->logger->warning('Error while disconnecting from DB', ['exception' => $ex]);
-			$output->writeln("<info>Error while disconnecting from database: {$ex->getMessage()}</info>");
-		}
-		$connected = false;
-		while (!$connected) {
-			try {
-				$connected = $connection->connect();
-			} catch (\Exception $ex) {
-				$this->logger->warning('Error while re-connecting to database', ['exception' => $ex]);
-				$output->writeln("<info>Error while re-connecting to database: {$ex->getMessage()}</info>");
-				sleep(60);
-			}
-		}
-		return $connection;
-	}
-
-
-	private function selfTest(IStorage $storage, INotifyHandler $notifyHandler, OutputInterface $output) {
-		usleep(100 * 1000); //give time for the notify to start
-		if (!$storage->file_put_contents('/.nc_test_file.txt', 'test content')) {
-			$output->writeln("Failed to create test file for self-test");
-			return;
-		}
-		$storage->mkdir('/.nc_test_folder');
-		$storage->file_put_contents('/.nc_test_folder/subfile.txt', 'test content');
-
-		usleep(100 * 1000); //time for all changes to be processed
-		$changes = $notifyHandler->getChanges();
-
-		$storage->unlink('/.nc_test_file.txt');
-		$storage->unlink('/.nc_test_folder/subfile.txt');
-		$storage->rmdir('/.nc_test_folder');
-
-		usleep(100 * 1000); //time for all changes to be processed
-		$notifyHandler->getChanges(); // flush
-
-		$foundRootChange = false;
-		$foundSubfolderChange = false;
-
-		foreach ($changes as $change) {
-			if ($change->getPath() === '/.nc_test_file.txt' || $change->getPath() === '.nc_test_file.txt') {
-				$foundRootChange = true;
-			} elseif ($change->getPath() === '/.nc_test_folder/subfile.txt' || $change->getPath() === '.nc_test_folder/subfile.txt') {
-				$foundSubfolderChange = true;
-			}
-		}
-
-		if ($foundRootChange && $foundSubfolderChange) {
-			$output->writeln('<info>Self-test successful</info>', OutputInterface::VERBOSITY_VERBOSE);
-		} elseif ($foundRootChange) {
-			$output->writeln('<error>Error while running self-test, change is subfolder not detected</error>');
-		} else {
-			$output->writeln('<error>Error while running self-test, no changes detected</error>');
-		}
-	}
+    private GlobalStoragesService $globalService;
+    private IDBConnection $connection;
+    private LoggerInterface $logger;
+    /** @var IUserManager */
+    private $userManager;
+
+    public function __construct(
+        GlobalStoragesService $globalService,
+        IDBConnection $connection,
+        LoggerInterface $logger,
+        IUserManager $userManager
+    ) {
+        parent::__construct();
+        $this->globalService = $globalService;
+        $this->connection = $connection;
+        $this->logger = $logger;
+        $this->userManager = $userManager;
+    }
+
+    protected function configure(): void {
+        $this
+            ->setName('files_external:notify')
+            ->setDescription('Listen for active update notifications for a configured external mount')
+            ->addArgument(
+                'mount_id',
+                InputArgument::REQUIRED,
+                'the mount id of the mount to listen to'
+            )->addOption(
+                'user',
+                'u',
+                InputOption::VALUE_REQUIRED,
+                'The username for the remote mount (required only for some mount configuration that don\'t store credentials)'
+            )->addOption(
+                'password',
+                'p',
+                InputOption::VALUE_REQUIRED,
+                'The password for the remote mount (required only for some mount configuration that don\'t store credentials)'
+            )->addOption(
+                'path',
+                '',
+                InputOption::VALUE_REQUIRED,
+                'The directory in the storage to listen for updates in',
+                '/'
+            )->addOption(
+                'no-self-check',
+                '',
+                InputOption::VALUE_NONE,
+                'Disable self check on startup'
+            )->addOption(
+                'dry-run',
+                '',
+                InputOption::VALUE_NONE,
+                'Don\'t make any changes, only log detected changes'
+            );
+        parent::configure();
+    }
+
+    private function getUserOption(InputInterface $input): ?string {
+        if ($input->getOption('user')) {
+            return (string)$input->getOption('user');
+        } elseif (isset($_ENV['NOTIFY_USER'])) {
+            return $_ENV['NOTIFY_USER'];
+        } elseif (isset($_SERVER['NOTIFY_USER'])) {
+            return $_SERVER['NOTIFY_USER'];
+        } else {
+            return null;
+        }
+    }
+
+    private function getPasswordOption(InputInterface $input): ?string {
+        if ($input->getOption('password')) {
+            return (string)$input->getOption('password');
+        } elseif (isset($_ENV['NOTIFY_PASSWORD'])) {
+            return $_ENV['NOTIFY_PASSWORD'];
+        } elseif (isset($_SERVER['NOTIFY_PASSWORD'])) {
+            return $_SERVER['NOTIFY_PASSWORD'];
+        } else {
+            return null;
+        }
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int {
+        $mount = $this->globalService->getStorage($input->getArgument('mount_id'));
+        if (is_null($mount)) {
+            $output->writeln('<error>Mount not found</error>');
+            return 1;
+        }
+        $noAuth = false;
+
+        $userOption = $this->getUserOption($input);
+        $passwordOption = $this->getPasswordOption($input);
+
+        // if only the user is provided, we get the user object to pass along to the auth backend
+        // this allows using saved user credentials
+        $user = ($userOption && !$passwordOption) ? $this->userManager->get($userOption) : null;
+
+        try {
+            $authBackend = $mount->getAuthMechanism();
+            $authBackend->manipulateStorageConfig($mount, $user);
+        } catch (InsufficientDataForMeaningfulAnswerException $e) {
+            $noAuth = true;
+        } catch (StorageNotAvailableException $e) {
+            $noAuth = true;
+        }
+
+        if ($userOption) {
+            $mount->setBackendOption('user', $userOption);
+        }
+        if ($passwordOption) {
+            $mount->setBackendOption('password', $passwordOption);
+        }
+
+        try {
+            $backend = $mount->getBackend();
+            $backend->manipulateStorageConfig($mount, $user);
+        } catch (InsufficientDataForMeaningfulAnswerException $e) {
+            $noAuth = true;
+        } catch (StorageNotAvailableException $e) {
+            $noAuth = true;
+        }
+
+        try {
+            $storage = $this->createStorage($mount);
+        } catch (\Exception $e) {
+            $output->writeln('<error>Error while trying to create storage</error>');
+            if ($noAuth) {
+                $output->writeln('<error>Username and/or password required</error>');
+            }
+            return 1;
+        }
+        if (!$storage instanceof INotifyStorage) {
+            $output->writeln('<error>Mount of type "' . $mount->getBackend()->getText() . '" does not support active update notifications</error>');
+            return 1;
+        }
+
+        $dryRun = $input->getOption('dry-run');
+        if ($dryRun && $output->getVerbosity() < OutputInterface::VERBOSITY_VERBOSE) {
+            $output->setVerbosity(OutputInterface::VERBOSITY_VERBOSE);
+        }
+
+        $path = trim($input->getOption('path'), '/');
+        $notifyHandler = $storage->notify($path);
+
+        if (!$input->getOption('no-self-check')) {
+            $this->selfTest($storage, $notifyHandler, $output);
+        }
+
+        $notifyHandler->listen(function (IChange $change) use ($mount, $output, $dryRun) {
+            $this->logUpdate($change, $output);
+            if ($change instanceof IRenameChange) {
+                $this->markParentAsOutdated($mount->getId(), $change->getTargetPath(), $output, $dryRun);
+            }
+            $this->markParentAsOutdated($mount->getId(), $change->getPath(), $output, $dryRun);
+        });
+        return 0;
+    }
+
+    private function createStorage(StorageConfig $mount): IStorage {
+        $class = $mount->getBackend()->getStorageClass();
+        return new $class($mount->getBackendOptions());
+    }
+
+    private function markParentAsOutdated($mountId, $path, OutputInterface $output, bool $dryRun) {
+        $parent = ltrim(dirname($path), '/');
+        if ($parent === '.') {
+            $parent = '';
+        }
+
+        try {
+            $storages = $this->getStorageIds($mountId, $parent);
+        } catch (DriverException $ex) {
+            $this->logger->warning('Error while trying to find correct storage ids.', ['exception' => $ex]);
+            $this->connection = $this->reconnectToDatabase($this->connection, $output);
+            $output->writeln('<info>Needed to reconnect to the database</info>');
+            $storages = $this->getStorageIds($mountId, $path);
+        }
+        if (count($storages) === 0) {
+            $output->writeln("  no users found with access to '$parent', skipping", OutputInterface::VERBOSITY_VERBOSE);
+            return;
+        }
+
+        $users = array_map(function (array $storage) {
+            return $storage['user_id'];
+        }, $storages);
+
+        $output->writeln("  marking '$parent' as outdated for " . implode(', ', $users), OutputInterface::VERBOSITY_VERBOSE);
+
+        $storageIds = array_map(function (array $storage) {
+            return intval($storage['storage_id']);
+        }, $storages);
+        $storageIds = array_values(array_unique($storageIds));
+
+        if ($dryRun) {
+            $output->writeln("  dry-run: skipping database write");
+        } else {
+            $result = $this->updateParent($storageIds, $parent);
+            if ($result === 0) {
+                //TODO: Find existing parent further up the tree in the database and register that folder instead.
+                $this->logger->info('Failed updating parent for "' . $path . '" while trying to register change. It may not exist in the filecache.');
+            }
+        }
+    }
+
+    private function logUpdate(IChange $change, OutputInterface $output) {
+        switch ($change->getType()) {
+            case INotifyStorage::NOTIFY_ADDED:
+                $text = 'added';
+                break;
+            case INotifyStorage::NOTIFY_MODIFIED:
+                $text = 'modified';
+                break;
+            case INotifyStorage::NOTIFY_REMOVED:
+                $text = 'removed';
+                break;
+            case INotifyStorage::NOTIFY_RENAMED:
+                $text = 'renamed';
+                break;
+            default:
+                return;
+        }
+
+        $text .= ' ' . $change->getPath();
+        if ($change instanceof IRenameChange) {
+            $text .= ' to ' . $change->getTargetPath();
+        }
+
+        $output->writeln($text, OutputInterface::VERBOSITY_VERBOSE);
+    }
+
+    private function getStorageIds(int $mountId, string $path): array {
+        $pathHash = md5(trim((string)\OC_Util::normalizeUnicode($path), '/'));
+        $qb = $this->connection->getQueryBuilder();
+        return $qb
+            ->select('storage_id', 'user_id')
+            ->from('mounts', 'm')
+            ->innerJoin('m', 'filecache', 'f', $qb->expr()->eq('m.storage_id', 'f.storage'))
+            ->where($qb->expr()->eq('mount_id', $qb->createNamedParameter($mountId, IQueryBuilder::PARAM_INT)))
+            ->andWhere($qb->expr()->eq('path_hash', $qb->createNamedParameter($pathHash, IQueryBuilder::PARAM_STR)))
+            ->execute()
+            ->fetchAll();
+    }
+
+    private function updateParent(array $storageIds, string $parent): int {
+        $pathHash = md5(trim((string)\OC_Util::normalizeUnicode($parent), '/'));
+        $qb = $this->connection->getQueryBuilder();
+        return $qb
+            ->update('filecache')
+            ->set('size', $qb->createNamedParameter(-1, IQueryBuilder::PARAM_INT))
+            ->where($qb->expr()->in('storage', $qb->createNamedParameter($storageIds, IQueryBuilder::PARAM_INT_ARRAY, ':storage_ids')))
+            ->andWhere($qb->expr()->eq('path_hash', $qb->createNamedParameter($pathHash, IQueryBuilder::PARAM_STR)))
+            ->executeStatement();
+    }
+
+    private function reconnectToDatabase(IDBConnection $connection, OutputInterface $output): IDBConnection {
+        try {
+            $connection->close();
+        } catch (\Exception $ex) {
+            $this->logger->warning('Error while disconnecting from DB', ['exception' => $ex]);
+            $output->writeln("<info>Error while disconnecting from database: {$ex->getMessage()}</info>");
+        }
+        $connected = false;
+        while (!$connected) {
+            try {
+                $connected = $connection->connect();
+            } catch (\Exception $ex) {
+                $this->logger->warning('Error while re-connecting to database', ['exception' => $ex]);
+                $output->writeln("<info>Error while re-connecting to database: {$ex->getMessage()}</info>");
+                sleep(60);
+            }
+        }
+        return $connection;
+    }
+
+
+    private function selfTest(IStorage $storage, INotifyHandler $notifyHandler, OutputInterface $output) {
+        usleep(100 * 1000); //give time for the notify to start
+        if (!$storage->file_put_contents('/.nc_test_file.txt', 'test content')) {
+            $output->writeln("Failed to create test file for self-test");
+            return;
+        }
+        $storage->mkdir('/.nc_test_folder');
+        $storage->file_put_contents('/.nc_test_folder/subfile.txt', 'test content');
+
+        usleep(100 * 1000); //time for all changes to be processed
+        $changes = $notifyHandler->getChanges();
+
+        $storage->unlink('/.nc_test_file.txt');
+        $storage->unlink('/.nc_test_folder/subfile.txt');
+        $storage->rmdir('/.nc_test_folder');
+
+        usleep(100 * 1000); //time for all changes to be processed
+        $notifyHandler->getChanges(); // flush
+
+        $foundRootChange = false;
+        $foundSubfolderChange = false;
+
+        foreach ($changes as $change) {
+            if ($change->getPath() === '/.nc_test_file.txt' || $change->getPath() === '.nc_test_file.txt') {
+                $foundRootChange = true;
+            } elseif ($change->getPath() === '/.nc_test_folder/subfile.txt' || $change->getPath() === '.nc_test_folder/subfile.txt') {
+                $foundSubfolderChange = true;
+            }
+        }
+
+        if ($foundRootChange && $foundSubfolderChange) {
+            $output->writeln('<info>Self-test successful</info>', OutputInterface::VERBOSITY_VERBOSE);
+        } elseif ($foundRootChange) {
+            $output->writeln('<error>Error while running self-test, change is subfolder not detected</error>');
+        } else {
+            $output->writeln('<error>Error while running self-test, no changes detected</error>');
+        }
+    }
 }