diff options
Diffstat (limited to 'lib/files')
-rw-r--r-- | lib/files/cache/cache.php | 304 | ||||
-rw-r--r-- | lib/files/cache/permissions.php | 85 | ||||
-rw-r--r-- | lib/files/cache/scanner.php | 110 | ||||
-rw-r--r-- | lib/files/file.php | 61 | ||||
-rw-r--r-- | lib/files/filesystem.php | 658 | ||||
-rw-r--r-- | lib/files/storage/common.php | 270 | ||||
-rw-r--r-- | lib/files/storage/commontest.php | 80 | ||||
-rw-r--r-- | lib/files/storage/local.php | 208 | ||||
-rw-r--r-- | lib/files/storage/storage.php | 66 | ||||
-rw-r--r-- | lib/files/storage/temporary.php | 26 | ||||
-rw-r--r-- | lib/files/view.php | 817 |
11 files changed, 2685 insertions, 0 deletions
diff --git a/lib/files/cache/cache.php b/lib/files/cache/cache.php new file mode 100644 index 00000000000..5efc7d67c4a --- /dev/null +++ b/lib/files/cache/cache.php @@ -0,0 +1,304 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +namespace OC\Files\Cache; + +/** + * Metadata cache for the filesystem + * + * don't use this class directly if you need to get metadata, use \OC\Files\Filesystem::getFileInfo instead + */ +class Cache { + const NOT_FOUND = 0; + const PARTIAL = 1; //only partial data available, file not cached in the database + const SHALLOW = 2; //folder in cache, but not all child files are completely scanned + const COMPLETE = 3; + + /** + * @var \OC\Files\Storage\Storage + */ + private $storage; + + /** + * @var array partial data for the cache + */ + private $partial = array(); + + private $storageId; + + /** + * @param \OC\Files\Storage\Storage $storage + */ + public function __construct(\OC\Files\Storage\Storage $storage) { + $this->storage = $storage; + $this->storageId = $storage->getId(); + } + + /** + * get the stored metadata of a file or folder + * + * @param string/int $file + * @return array + */ + public function get($file) { + if (is_string($file)) { + $where = 'WHERE `storage` = ? AND `path_hash` = ?'; + $params = array($this->storageId, md5($file)); + } else { //file id + $where = 'WHERE `fileid` = ?'; + $params = array($file); + } + $query = \OC_DB::prepare( + 'SELECT `fileid`, `storage`, `path`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`, `encrypted` + FROM `*PREFIX*filecache` ' . $where); + $result = $query->execute($params); + $data = $result->fetchRow(); + + //merge partial data + if (!$data and is_string($file)) { + if (isset($this->partial[$file])) { + $data = $this->partial[$file]; + } + } else { + //fix types + $data['fileid'] = (int)$data['fileid']; + $data['size'] = (int)$data['size']; + $data['mtime'] = (int)$data['mtime']; + $data['encrypted'] = (bool)$data['encrypted']; + } + + return $data; + } + + /** + * get the metadata of all files stored in $folder + * + * @param string $folder + * @return array + */ + public function getFolderContents($folder) { + $fileId = $this->getId($folder); + if ($fileId > -1) { + $query = \OC_DB::prepare( + 'SELECT `fileid`, `storage`, `path`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`, `encrypted` + FROM `*PREFIX*filecache` WHERE parent = ?'); + $result = $query->execute(array($fileId)); + return $result->fetchAll(); + } else { + return array(); + } + } + + /** + * store meta data for a file or folder + * + * @param string $file + * @param array $data + * + * @return int file id + */ + public function put($file, array $data) { + if (($id = $this->getId($file)) > -1) { + $this->update($id, $data); + return $id; + } else { + if (isset($this->partial[$file])) { //add any saved partial data + $data = array_merge($this->partial[$file], $data); + unset($this->partial[$file]); + } + + $requiredFields = array('size', 'mtime', 'mimetype'); + foreach ($requiredFields as $field) { + if (!isset($data[$field])) { //data not complete save as partial and return + $this->partial[$file] = $data; + return -1; + } + } + + $data['path'] = $file; + $data['parent'] = $this->getParentId($file); + $data['name'] = basename($file); + $data['encrypted'] = isset($data['encrypted']) ? ((int)$data['encrypted']) : 0; + + list($queryParts, $params) = $this->buildParts($data); + $queryParts[] = '`storage`'; + $params[] = $this->storageId; + $valuesPlaceholder = array_fill(0, count($queryParts), '?'); + + $query = \OC_DB::prepare('INSERT INTO `*PREFIX*filecache`(' . implode(', ', $queryParts) . ') VALUES(' . implode(', ', $valuesPlaceholder) . ')'); + $query->execute($params); + + return (int)\OC_DB::insertid('*PREFIX*filecache'); + } + } + + /** + * update the metadata in the cache + * + * @param int $id + * @param array $data + */ + public function update($id, array $data) { + list($queryParts, $params) = $this->buildParts($data); + $params[] = $id; + + $query = \OC_DB::prepare('UPDATE `*PREFIX*filecache` SET ' . implode(' = ?, ', $queryParts) . '=? WHERE fileid = ?'); + $query->execute($params); + } + + /** + * extract query parts and params array from data array + * + * @param array $data + * @return array + */ + static function buildParts(array $data) { + $fields = array('path', 'parent', 'name', 'mimetype', 'size', 'mtime', 'encrypted'); + + $params = array(); + $queryParts = array(); + foreach ($data as $name => $value) { + if (array_search($name, $fields) !== false) { + $params[] = $value; + $queryParts[] = '`' . $name . '`'; + if ($name === 'path') { + $params[] = md5($value); + $queryParts[] = '`path_hash`'; + } elseif ($name === 'mimetype') { + $params[] = substr($value, 0, strpos($value, '/')); + $queryParts[] = '`mimepart`'; + } + } + } + return array($queryParts, $params); + } + + /** + * get the file id for a file + * + * @param string $file + * @return int + */ + public function getId($file) { + $pathHash = md5($file); + + $query = \OC_DB::prepare('SELECT `fileid` FROM `*PREFIX*filecache` WHERE `storage` = ? AND `path_hash` = ?'); + $result = $query->execute(array($this->storageId, $pathHash)); + + if ($row = $result->fetchRow()) { + return $row['fileid']; + } else { + return -1; + } + } + + /** + * get the id of the parent folder of a file + * + * @param string $file + * @return int + */ + public function getParentId($file) { + if ($file === '') { + return -1; + } else { + $parent = dirname($file); + if ($parent === '.') { + $parent = ''; + } + return $this->getId($parent); + } + } + + /** + * check if a file is available in the cache + * + * @param string $file + * @return bool + */ + public function inCache($file) { + return $this->getId($file) != -1; + } + + /** + * remove a file or folder from the cache + * + * @param string $file + */ + public function remove($file) { + $pathHash = md5($file); + $query = \OC_DB::prepare('DELETE FROM `*PREFIX*filecache` WHERE `storage` = ? AND `path_hash` = ?'); + $query->execute(array($this->storageId, $pathHash)); + } + + /** + * remove all entries for files that are stored on the storage from the cache + */ + public function clear() { + $query = \OC_DB::prepare('DELETE FROM `*PREFIX*filecache` WHERE storage=?'); + $query->execute(array($this->storageId)); + } + + /** + * @param string $file + * + * @return int, Cache::NOT_FOUND, Cache::PARTIAL, Cache::SHALLOW or Cache::COMPLETE + */ + public function getStatus($file) { + $pathHash = md5($file); + $query = \OC_DB::prepare('SELECT `size` FROM `*PREFIX*filecache` WHERE `storage` = ? AND `path_hash` = ?'); + $result = $query->execute(array($this->storageId, $pathHash)); + if ($row = $result->fetchRow()) { + if ((int)$row['size'] === -1) { + return self::SHALLOW; + } else { + return self::COMPLETE; + } + } else { + if (isset($this->partial[$file])) { + return self::PARTIAL; + } else { + return self::NOT_FOUND; + } + } + } + + /** + * search for files matching $pattern + * + * @param string $pattern + * @return array of file data + */ + public function search($pattern) { + $query = \OC_DB::prepare(' + SELECT `fileid`, `storage`, `path`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`, `encrypted` + FROM `*PREFIX*filecache` WHERE `name` LIKE ? AND `storage` = ?' + ); + $result = $query->execute(array($pattern, $this->storageId)); + $files = array(); + while ($row = $result->fetchRow()) { + $files[] = $row; + } + return $files; + } + + /** + * get all file ids on the files on the storage + * + * @return int[] + */ + public function getAll() { + $query = \OC_DB::prepare('SELECT `fileid` FROM `*PREFIX*filecache` WHERE `storage` = ?'); + $result = $query->execute(array($this->storageId)); + $ids = array(); + while ($row = $result->fetchRow()) { + $ids[] = $row['fileid']; + } + return $ids; + } +} diff --git a/lib/files/cache/permissions.php b/lib/files/cache/permissions.php new file mode 100644 index 00000000000..e3fa63c464a --- /dev/null +++ b/lib/files/cache/permissions.php @@ -0,0 +1,85 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +namespace OC\Files\Cache; + +class Permissions { + /** + * get the permissions for a single file + * + * @param int $fileId + * @param string $user + * @return int (-1 if file no permissions set) + */ + static public function get($fileId, $user) { + $query = \OC_DB::prepare('SELECT `permissions` FROM `*PREFIX*permissions` WHERE `user` = ? AND `fileid` = ?'); + $result = $query->execute(array($user, $fileId)); + if ($row = $result->fetchRow()) { + return $row['permissions']; + } else { + return -1; + } + } + + /** + * set the permissions of a file + * + * @param int $fileId + * @param string $user + * @param int $permissions + */ + static public function set($fileId, $user, $permissions) { + if (self::get($fileId, $user) !== -1) { + $query = \OC_DB::prepare('UPDATE `*PREFIX*permissions` SET `permissions` = ? WHERE `user` = ? AND `fileid` = ?'); + } else { + $query = \OC_DB::prepare('INSERT INTO `*PREFIX*permissions`(`permissions`, `user`, `fileid`) VALUES(?, ?,? )'); + } + $query->execute(array($permissions, $user, $fileId)); + } + + /** + * get the permissions of multiply files + * + * @param int[] $fileIds + * @param string $user + * @return int[] + */ + static public function getMultiple($fileIds, $user) { + $params = $fileIds; + $params[] = $user; + $inPart = implode(', ', array_fill(0, count($fileIds), '?')); + + $query = \OC_DB::prepare('SELECT `fileid`, `permissions` FROM `*PREFIX*permissions` WHERE `fileid` IN (' . $inPart . ') AND `user` = ?'); + $result = $query->execute($params); + $filePermissions = array(); + while ($row = $result->fetchRow()) { + $filePermissions[$row['fileid']] = $row['permissions']; + } + return $filePermissions; + } + + /** + * remove the permissions for a file + * + * @param int $fileId + * @param string $user + */ + static public function remove($fileId, $user) { + $query = \OC_DB::prepare('DELETE FROM `*PREFIX*permissions` WHERE `fileid` = ? AND `user` = ?'); + $query->execute(array($fileId, $user)); + } + + static public function removeMultiple($fileIds, $user) { + $params = $fileIds; + $params[] = $user; + $inPart = implode(', ', array_fill(0, count($fileIds), '?')); + + $query = \OC_DB::prepare('DELETE FROM `*PREFIX*permissions` WHERE `fileid` IN (' . $inPart . ') AND `user` = ?'); + $query->execute($params); + } +} diff --git a/lib/files/cache/scanner.php b/lib/files/cache/scanner.php new file mode 100644 index 00000000000..0adde1d354d --- /dev/null +++ b/lib/files/cache/scanner.php @@ -0,0 +1,110 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +namespace OC\Files\Cache; + +class Scanner { + /** + * @var \OC\Files\Storage\Storage $storage + */ + private $storage; + + /** + * @var \OC\Files\Cache\Cache $cache + */ + private $cache; + + const SCAN_RECURSIVE = true; + const SCAN_SHALLOW = false; + + public function __construct(\OC\Files\Storage\Storage $storage) { + $this->storage = $storage; + $this->cache = new Cache($storage); + } + + /** + * get all the metadata of a file or folder + * * + * + * @param string $path + * @return array with metadata of the file + */ + public function getData($path) { + $data = array(); + if (!$this->storage->isReadable($path)) return null; //cant read, nothing we can do + $data['mimetype'] = $this->storage->getMimeType($path); + $data['mtime'] = $this->storage->filemtime($path); + if ($data['mimetype'] == 'httpd/unix-directory') { + $data['size'] = -1; //unknown + $data['permissions'] = $this->storage->getPermissions($path . '/'); + } else { + $data['size'] = $this->storage->filesize($path); + $data['permissions'] = $this->storage->getPermissions($path); + } + return $data; + } + + /** + * scan a single file and store it in the cache + * + * @param string $file + * @return array with metadata of the scanned file + */ + public function scanFile($file) { + $data = $this->getData($file); + if ($file !== '') { + $parent = dirname($file); + if ($parent === '.') { + $parent = ''; + } + if (!$this->cache->inCache($parent)) { + $this->scanFile($parent); + } + } + $id = $this->cache->put($file, $data); + Permissions::set($id, \OC_User::getUser(), $data['permissions']); + return $data; + } + + /** + * scan all the files in a folder and store them in the cache + * + * @param string $path + * @param SCAN_RECURSIVE/SCAN_SHALLOW $recursive + * @return int the size of the scanned folder or -1 if the size is unknown at this stage + */ + public function scan($path, $recursive = self::SCAN_RECURSIVE) { + $this->scanFile($path); + + $size = 0; + if ($dh = $this->storage->opendir($path)) { + while ($file = readdir($dh)) { + if ($file !== '.' and $file !== '..') { + $child = ($path !== '') ? $path . '/' . $file : $file; + $data = $this->scanFile($child); + if ($data['mimetype'] === 'httpd/unix-directory') { + if ($recursive === self::SCAN_RECURSIVE) { + $data['size'] = $this->scan($child, self::SCAN_RECURSIVE); + } else { + $data['size'] = -1; + } + } + if ($data['size'] === -1) { + $size = -1; + } elseif ($size !== -1) { + $size += $data['size']; + } + } + } + } + if ($size !== -1) { + $this->cache->put($path, array('size' => $size)); + } + return $size; + } +} diff --git a/lib/files/file.php b/lib/files/file.php new file mode 100644 index 00000000000..0d33cea7ee7 --- /dev/null +++ b/lib/files/file.php @@ -0,0 +1,61 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +namespace OC\Files; + +/** + * representation of the location a file or folder is stored + */ + +class File{ + /** + * @var Storage\Storage $storage + */ + private $storage; + /** + * @var string internalPath + */ + private $internalPath; + + public function __construct(Storage\Storage $storage, $internalPath){ + $this->storage = $storage; + $this->internalPath = $internalPath; + } + + public static function resolve($fullPath){ + $storage = null; + $internalPath = ''; + list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($fullPath); + return new File($storage, $internalPath); + } + + /** + * get the internal path of the file inside the filestorage + * @return string + */ + public function getInternalPath(){ + return $this->internalPath; + } + + /** + * get the storage the file is stored in + * @return \OC\Files\Storage\Storage + */ + public function getStorage(){ + return $this->storage; + } + + /** + * get the id of the storage the file is stored in + * @return string + */ + public function getStorageId(){ + return $this->storage->getId(); + } + +} diff --git a/lib/files/filesystem.php b/lib/files/filesystem.php new file mode 100644 index 00000000000..b3c92f38558 --- /dev/null +++ b/lib/files/filesystem.php @@ -0,0 +1,658 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +/** + * Class for abstraction of filesystem functions + * This class won't call any filesystem functions for itself but but will pass them to the correct OC_Filestorage object + * this class should also handle all the file permission related stuff + * + * Hooks provided: + * read(path) + * write(path, &run) + * post_write(path) + * create(path, &run) (when a file is created, both create and write will be emitted in that order) + * post_create(path) + * delete(path, &run) + * post_delete(path) + * rename(oldpath,newpath, &run) + * post_rename(oldpath,newpath) + * copy(oldpath,newpath, &run) (if the newpath doesn't exists yes, copy, create and write will be emitted in that order) + * post_rename(oldpath,newpath) + * + * the &run parameter can be set to false to prevent the operation from occurring + */ + +namespace OC\Files; + +class Filesystem { + static private $storages = array(); + static private $mounts = array(); + public static $loaded = false; + /** + * @var \OC\Files\View $defaultInstance + */ + static private $defaultInstance; + + + /** + * classname which used for hooks handling + * used as signalclass in OC_Hooks::emit() + */ + const CLASSNAME = 'OC_Filesystem'; + + /** + * signalname emitted before file renaming + * + * @param string $oldpath + * @param string $newpath + */ + const signal_rename = 'rename'; + + /** + * signal emitted after file renaming + * + * @param string $oldpath + * @param string $newpath + */ + const signal_post_rename = 'post_rename'; + + /** + * signal emitted before file/dir creation + * + * @param string $path + * @param bool $run changing this flag to false in hook handler will cancel event + */ + const signal_create = 'create'; + + /** + * signal emitted after file/dir creation + * + * @param string $path + * @param bool $run changing this flag to false in hook handler will cancel event + */ + const signal_post_create = 'post_create'; + + /** + * signal emits before file/dir copy + * + * @param string $oldpath + * @param string $newpath + * @param bool $run changing this flag to false in hook handler will cancel event + */ + const signal_copy = 'copy'; + + /** + * signal emits after file/dir copy + * + * @param string $oldpath + * @param string $newpath + */ + const signal_post_copy = 'post_copy'; + + /** + * signal emits before file/dir save + * + * @param string $path + * @param bool $run changing this flag to false in hook handler will cancel event + */ + const signal_write = 'write'; + + /** + * signal emits after file/dir save + * + * @param string $path + */ + const signal_post_write = 'post_write'; + + /** + * signal emits when reading file/dir + * + * @param string $path + */ + const signal_read = 'read'; + + /** + * signal emits when removing file/dir + * + * @param string $path + */ + const signal_delete = 'delete'; + + /** + * parameters definitions for signals + */ + const signal_param_path = 'path'; + const signal_param_oldpath = 'oldpath'; + const signal_param_newpath = 'newpath'; + + /** + * run - changing this flag to false in hook handler will cancel event + */ + const signal_param_run = 'run'; + + /** + * get the mountpoint of the storage object for a path + ( note: because a storage is not always mounted inside the fakeroot, the returned mountpoint is relative to the absolute root of the filesystem and doesn't take the chroot into account + * + * @param string $path + * @return string + */ + static public function getMountPoint($path) { + \OC_Hook::emit(self::CLASSNAME, 'get_mountpoint', array('path' => $path)); + if (!$path) { + $path = '/'; + } + if ($path[0] !== '/') { + $path = '/' . $path; + } + $path = str_replace('//', '/', $path); + $foundMountPoint = ''; + $mountPoints = array_keys(self::$mounts); + foreach ($mountPoints as $mountpoint) { + if ($mountpoint == $path) { + return $mountpoint; + } + if (strpos($path, $mountpoint) === 0 and strlen($mountpoint) > strlen($foundMountPoint)) { + $foundMountPoint = $mountpoint; + } + } + return $foundMountPoint; + } + + /** + * get a list of all mount points in a directory + * + * @param string $path + * @return string[] + */ + static public function getMountPoints($path) { + $path = self::normalizePath($path); + if (strlen($path) > 1) { + $path .= '/'; + } + $pathLength = strlen($path); + + $mountPoints = array_keys(self::$mounts); + $result = array(); + foreach ($mountPoints as $mountPoint) { + if (substr($mountPoint, 0, $pathLength) === $path and strlen($mountPoint) > $pathLength) { + $result[] = $mountPoint; + } + } + return $result; + } + + /** + * get the storage mounted at $mountPoint + * + * @param string $mountPoint + * @return \OC\Files\Storage\Storage + */ + public static function getStorage($mountPoint) { + if (!isset(self::$storages[$mountPoint])) { + $mount = self::$mounts[$mountPoint]; + self::$storages[$mountPoint] = self::createStorage($mount['class'], $mount['arguments']); + } + return self::$storages[$mountPoint]; + } + + /** + * resolve a path to a storage and internal path + * + * @param string $path + * @return array consisting of the storage and the internal path + */ + static public function resolvePath($path) { + $mountpoint = self::getMountPoint($path); + if ($mountpoint) { + $storage = self::getStorage($mountpoint); + if ($mountpoint === $path) { + $internalPath = ''; + } else { + $internalPath = substr($path, strlen($mountpoint)); + } + return array($storage, $internalPath); + } else { + return array(null, null); + } + } + + static public function init($root) { + if (self::$defaultInstance) { + return false; + } + self::$defaultInstance = new View($root); + + //load custom mount config + if (is_file(\OC::$SERVERROOT . '/config/mount.php')) { + $mountConfig = include 'config/mount.php'; + if (isset($mountConfig['global'])) { + foreach ($mountConfig['global'] as $mountPoint => $options) { + self::mount($options['class'], $options['options'], $mountPoint); + } + } + + if (isset($mountConfig['group'])) { + foreach ($mountConfig['group'] as $group => $mounts) { + if (\OC_Group::inGroup(\OC_User::getUser(), $group)) { + foreach ($mounts as $mountPoint => $options) { + $mountPoint = self::setUserVars($mountPoint); + foreach ($options as &$option) { + $option = self::setUserVars($option); + } + self::mount($options['class'], $options['options'], $mountPoint); + } + } + } + } + + if (isset($mountConfig['user'])) { + foreach ($mountConfig['user'] as $user => $mounts) { + if ($user === 'all' or strtolower($user) === strtolower(\OC_User::getUser())) { + foreach ($mounts as $mountPoint => $options) { + $mountPoint = self::setUserVars($mountPoint); + foreach ($options as &$option) { + $option = self::setUserVars($option); + } + self::mount($options['class'], $options['options'], $mountPoint); + } + } + } + } + } + + self::$loaded = true; + + return true; + } + + /** + * fill in the correct values for $user, and $password placeholders + * + * @param string $input + * @return string + */ + private static function setUserVars($input) { + return str_replace('$user', \OC_User::getUser(), $input); + } + + /** + * get the default filesystem view + * + * @return View + */ + static public function getView() { + return self::$defaultInstance; + } + + /** + * tear down the filesystem, removing all storage providers + */ + static public function tearDown() { + self::$storages = array(); + } + + /** + * create a new storage of a specific type + * + * @param string $type + * @param array $arguments + * @return \OC\Files\Storage\Storage + */ + static private function createStorage($class, $arguments) { + if (class_exists($class)) { + try { + return new $class($arguments); + } catch (\Exception $exception) { + \OC_Log::write('core', $exception->getMessage(), \OC_Log::ERROR); + return false; + } + } else { + \OC_Log::write('core', 'storage backend ' . $class . ' not found', \OC_Log::ERROR); + return false; + } + } + + /** + * @brief get the relative path of the root data directory for the current user + * @return string + * + * Returns path like /admin/files + */ + static public function getRoot() { + return self::$defaultInstance->getRoot(); + } + + /** + * clear all mounts and storage backends + */ + public static function clearMounts() { + self::$mounts = array(); + self::$storages = array(); + } + + /** + * mount an \OC\Files\Storage\Storage in our virtual filesystem + * + * @param \OC\Files\Storage\Storage|string $class + * @param array $arguments + * @param string $mountpoint + */ + static public function mount($class, $arguments, $mountpoint) { + $mountpoint = self::normalizePath($mountpoint); + if (strlen($mountpoint) > 1) { + $mountpoint .= '/'; + } + + if ($class instanceof \OC\Files\Storage\Storage) { + self::$mounts[$mountpoint] = array('class' => get_class($class), 'arguments' => $arguments); + self::$storages[$mountpoint] = $class; + } else { + self::$mounts[$mountpoint] = array('class' => $class, 'arguments' => $arguments); + } + } + + /** + * return the path to a local version of the file + * we need this because we can't know if a file is stored local or not from outside the filestorage and for some purposes a local file is needed + * + * @param string $path + * @return string + */ + static public function getLocalFile($path) { + return self::$defaultInstance->getLocalFile($path); + } + + /** + * @param string $path + * @return string + */ + static public function getLocalFolder($path) { + return self::$defaultInstance->getLocalFolder($path); + } + + /** + * return path to file which reflects one visible in browser + * + * @param string $path + * @return string + */ + static public function getLocalPath($path) { + $datadir = \OC_User::getHome(\OC_User::getUser()) . '/files'; + $newpath = $path; + if (strncmp($newpath, $datadir, strlen($datadir)) == 0) { + $newpath = substr($path, strlen($datadir)); + } + return $newpath; + } + + /** + * check if the requested path is valid + * + * @param string $path + * @return bool + */ + static public function isValidPath($path) { + if (!$path || $path[0] !== '/') { + $path = '/' . $path; + } + if (strstr($path, '/../') || strrchr($path, '/') === '/..') { + return false; + } + return true; + } + + /** + * checks if a file is blacklisted for storage in the filesystem + * Listens to write and rename hooks + * + * @param array $data from hook + */ + static public function isBlacklisted($data) { + $blacklist = array('.htaccess'); + if (isset($data['path'])) { + $path = $data['path']; + } else if (isset($data['newpath'])) { + $path = $data['newpath']; + } + if (isset($path)) { + $filename = strtolower(basename($path)); + if (in_array($filename, $blacklist)) { + $data['run'] = false; + } + } + } + + /** + * following functions are equivalent to their php builtin equivalents for arguments/return values. + */ + static public function mkdir($path) { + return self::$defaultInstance->mkdir($path); + } + + static public function rmdir($path) { + return self::$defaultInstance->rmdir($path); + } + + static public function opendir($path) { + return self::$defaultInstance->opendir($path); + } + + static public function readdir($path) { + return self::$defaultInstance->readdir($path); + } + + static public function is_dir($path) { + return self::$defaultInstance->is_dir($path); + } + + static public function is_file($path) { + return self::$defaultInstance->is_file($path); + } + + static public function stat($path) { + return self::$defaultInstance->stat($path); + } + + static public function filetype($path) { + return self::$defaultInstance->filetype($path); + } + + static public function filesize($path) { + return self::$defaultInstance->filesize($path); + } + + static public function readfile($path) { + return self::$defaultInstance->readfile($path); + } + + static public function isCreatable($path) { + return self::$defaultInstance->isCreatable($path); + } + + static public function isReadable($path) { + return self::$defaultInstance->isReadable($path); + } + + static public function isUpdatable($path) { + return self::$defaultInstance->isUpdatable($path); + } + + static public function isDeletable($path) { + return self::$defaultInstance->isDeletable($path); + } + + static public function isSharable($path) { + return self::$defaultInstance->isSharable($path); + } + + static public function file_exists($path) { + return self::$defaultInstance->file_exists($path); + } + + static public function filemtime($path) { + return self::$defaultInstance->filemtime($path); + } + + static public function touch($path, $mtime = null) { + return self::$defaultInstance->touch($path, $mtime); + } + + static public function file_get_contents($path) { + return self::$defaultInstance->file_get_contents($path); + } + + static public function file_put_contents($path, $data) { + return self::$defaultInstance->file_put_contents($path, $data); + } + + static public function unlink($path) { + return self::$defaultInstance->unlink($path); + } + + static public function rename($path1, $path2) { + return self::$defaultInstance->rename($path1, $path2); + } + + static public function copy($path1, $path2) { + return self::$defaultInstance->copy($path1, $path2); + } + + static public function fopen($path, $mode) { + return self::$defaultInstance->fopen($path, $mode); + } + + static public function toTmpFile($path) { + return self::$defaultInstance->toTmpFile($path); + } + + static public function fromTmpFile($tmpFile, $path) { + return self::$defaultInstance->fromTmpFile($tmpFile, $path); + } + + static public function getMimeType($path) { + return self::$defaultInstance->getMimeType($path); + } + + static public function hash($type, $path, $raw = false) { + return self::$defaultInstance->hash($type, $path, $raw); + } + + static public function free_space($path = '/') { + return self::$defaultInstance->free_space($path); + } + + static public function search($query) { + return self::$defaultInstance->search($query); + } + + /** + * check if a file or folder has been updated since $time + * + * @param int $time + * @return bool + */ + static public function hasUpdated($path, $time) { + return self::$defaultInstance->hasUpdated($path, $time); + } + + static public function removeETagHook($params, $root = false) { + if (isset($params['path'])) { + $path = $params['path']; + } else { + $path = $params['oldpath']; + } + + if ($root) { // reduce path to the required part of it (no 'username/files') + $fakeRootView = new View($root); + $count = 1; + $path = str_replace(\OC_App::getStorage("files")->getAbsolutePath(''), "", $fakeRootView->getAbsolutePath($path), $count); + } + + $path = self::normalizePath($path); + \OC_Connector_Sabre_Node::removeETagPropertyForPath($path); + } + + /** + * normalize a path + * + * @param string $path + * @param bool $stripTrailingSlash + * @return string + */ + public static function normalizePath($path, $stripTrailingSlash = true) { + if ($path == '') { + return '/'; + } +//no windows style slashes + $path = str_replace('\\', '/', $path); +//add leading slash + if ($path[0] !== '/') { + $path = '/' . $path; + } +//remove duplicate slashes + while (strpos($path, '//') !== false) { + $path = str_replace('//', '/', $path); + } +//remove trailing slash + if ($stripTrailingSlash and strlen($path) > 1 and substr($path, -1, 1) === '/') { + $path = substr($path, 0, -1); + } +//normalize unicode if possible + if (class_exists('Normalizer')) { + $path = \Normalizer::normalize($path); + } + return $path; + } + + /** + * get the filesystem info + * + * @param string $path + * @return array + * + * returns an associative array with the following keys: + * - size + * - mtime + * - mimetype + * - encrypted + * - versioned + */ + public static function getFileInfo($path) { + return self::$defaultInstance->getFileInfo($path); + } + + /** + * change file metadata + * + * @param string $path + * @param array $data + * @return int + * + * returns the fileid of the updated file + */ + public static function putFileInfo($path, $data) { + return self::$defaultInstance->putFileInfo($path, $data); + } + + /** + * get the content of a directory + * + * @param string $directory path under datadirectory + * @return array + */ + public static function getDirectoryContent($directory, $mimetype_filter = '') { + return self::$defaultInstance->getDirectoryContent($directory, $mimetype_filter); + } +} + +\OC_Hook::connect('OC_Filesystem', 'post_write', 'OC_Filesystem', 'removeETagHook'); +\OC_Hook::connect('OC_Filesystem', 'post_delete', 'OC_Filesystem', 'removeETagHook'); +\OC_Hook::connect('OC_Filesystem', 'post_rename', 'OC_Filesystem', 'removeETagHook'); + +\OC_Util::setupFS(); diff --git a/lib/files/storage/common.php b/lib/files/storage/common.php new file mode 100644 index 00000000000..e22264d0da9 --- /dev/null +++ b/lib/files/storage/common.php @@ -0,0 +1,270 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +namespace OC\Files\Storage; + +/** + * Storage backend class for providing common filesystem operation methods + * which are not storage-backend specific. + * + * \OC\Files\Storage\Common is never used directly; it is extended by all other + * storage backends, where its methods may be overridden, and additional + * (backend-specific) methods are defined. + * + * Some \OC\Files\Storage\Common methods call functions which are first defined + * in classes which extend it, e.g. $this->stat() . + */ + +abstract class Common implements \OC\Files\Storage\Storage { + + public function __construct($parameters) {} + abstract public function getId(); + abstract public function mkdir($path); + abstract public function rmdir($path); + abstract public function opendir($path); + public function is_dir($path) { + return $this->filetype($path)=='dir'; + } + public function is_file($path) { + return $this->filetype($path)=='file'; + } + abstract public function stat($path); + abstract public function filetype($path); + public function filesize($path) { + if($this->is_dir($path)) { + return 0;//by definition + }else{ + $stat = $this->stat($path); + return $stat['size']; + } + } + public function isCreatable($path) { + return $this->isUpdatable($path); + } + abstract public function isReadable($path); + abstract public function isUpdatable($path); + public function isDeletable($path) { + return $this->isUpdatable($path); + } + public function isSharable($path) { + return $this->isReadable($path); + } + public function getPermissions($path){ + $permissions = 0; + if($this->isCreatable($path)){ + $permissions |= \OCP\Share::PERMISSION_CREATE; + } + if($this->isReadable($path)){ + $permissions |= \OCP\Share::PERMISSION_READ; + } + if($this->isUpdatable($path)){ + $permissions |= \OCP\Share::PERMISSION_UPDATE; + } + if($this->isDeletable($path)){ + $permissions |= \OCP\Share::PERMISSION_DELETE; + } + if($this->isSharable($path)){ + $permissions |= \OCP\Share::PERMISSION_SHARE; + } + return $permissions; + } + abstract public function file_exists($path); + public function filemtime($path) { + $stat = $this->stat($path); + return $stat['mtime']; + } + public function fileatime($path) { + $stat = $this->stat($path); + return $stat['atime']; + } + public function file_get_contents($path) { + $handle = $this->fopen($path, "r"); + if(!$handle) { + return false; + } + $size=$this->filesize($path); + if($size==0) { + return ''; + } + return fread($handle, $size); + } + public function file_put_contents($path,$data) { + $handle = $this->fopen($path, "w"); + return fwrite($handle, $data); + } + abstract public function unlink($path); + public function rename($path1,$path2) { + if($this->copy($path1,$path2)) { + return $this->unlink($path1); + }else{ + return false; + } + } + public function copy($path1,$path2) { + $source=$this->fopen($path1,'r'); + $target=$this->fopen($path2,'w'); + $count=\OC_Helper::streamCopy($source,$target); + return $count>0; + } + abstract public function fopen($path,$mode); + + /** + * @brief Deletes all files and folders recursively within a directory + * @param string $directory The directory whose contents will be deleted + * @param bool $empty Flag indicating whether directory will be emptied + * @returns bool + * + * @note By default the directory specified by $directory will be + * deleted together with its contents. To avoid this set $empty to true + */ + public function deleteAll( $directory, $empty = false ) { + $directory = trim($directory,'/'); + + if ( !$this->file_exists( \OCP\USER::getUser() . '/' . $directory ) || !$this->is_dir( \OCP\USER::getUser() . '/' . $directory ) ) { + return false; + } elseif( !$this->isReadable( \OCP\USER::getUser() . '/' . $directory ) ) { + return false; + } else { + $directoryHandle = $this->opendir( \OCP\USER::getUser() . '/' . $directory ); + while ( $contents = readdir( $directoryHandle ) ) { + if ( $contents != '.' && $contents != '..') { + $path = $directory . "/" . $contents; + if ( $this->is_dir( $path ) ) { + $this->deleteAll( $path ); + } else { + $this->unlink( \OCP\USER::getUser() .'/' . $path ); // TODO: make unlink use same system path as is_dir + } + } + } + //$this->closedir( $directoryHandle ); // TODO: implement closedir in OC_FSV + if ( $empty == false ) { + if ( !$this->rmdir( $directory ) ) { + return false; + } + } + return true; + } + + } + public function getMimeType($path) { + if(!$this->file_exists($path)) { + return false; + } + if($this->is_dir($path)) { + return 'httpd/unix-directory'; + } + $source=$this->fopen($path,'r'); + if(!$source) { + return false; + } + $head=fread($source,8192);//8kb should suffice to determine a mimetype + if($pos=strrpos($path,'.')) { + $extension=substr($path,$pos); + }else{ + $extension=''; + } + $tmpFile=\OC_Helper::tmpFile($extension); + file_put_contents($tmpFile,$head); + $mime=\OC_Helper::getMimeType($tmpFile); + unlink($tmpFile); + return $mime; + } + public function hash($type,$path,$raw = false) { + $tmpFile=$this->getLocalFile($path); + $hash=hash($type,$tmpFile,$raw); + unlink($tmpFile); + return $hash; + } + abstract public function free_space($path); + public function search($query) { + return $this->searchInDir($query); + } + public function getLocalFile($path) { + return $this->toTmpFile($path); + } + private function toTmpFile($path) {//no longer in the storage api, still useful here + $source=$this->fopen($path,'r'); + if(!$source) { + return false; + } + if($pos=strrpos($path,'.')) { + $extension=substr($path,$pos); + }else{ + $extension=''; + } + $tmpFile=\OC_Helper::tmpFile($extension); + $target=fopen($tmpFile,'w'); + \OC_Helper::streamCopy($source,$target); + return $tmpFile; + } + public function getLocalFolder($path) { + $baseDir=\OC_Helper::tmpFolder(); + $this->addLocalFolder($path,$baseDir); + return $baseDir; + } + private function addLocalFolder($path,$target) { + if($dh=$this->opendir($path)) { + while($file=readdir($dh)) { + if($file!=='.' and $file!=='..') { + if($this->is_dir($path.'/'.$file)) { + mkdir($target.'/'.$file); + $this->addLocalFolder($path.'/'.$file,$target.'/'.$file); + }else{ + $tmp=$this->toTmpFile($path.'/'.$file); + rename($tmp,$target.'/'.$file); + } + } + } + } + } + abstract public function touch($path, $mtime=null); + + protected function searchInDir($query,$dir='') { + $files=array(); + $dh=$this->opendir($dir); + if($dh) { + while($item=readdir($dh)) { + if ($item == '.' || $item == '..') continue; + if(strstr(strtolower($item), strtolower($query))!==false) { + $files[]=$dir.'/'.$item; + } + if($this->is_dir($dir.'/'.$item)) { + $files=array_merge($files,$this->searchInDir($query,$dir.'/'.$item)); + } + } + } + return $files; + } + + /** + * check if a file or folder has been updated since $time + * @param string $path + * @param int $time + * @return bool + */ + public function hasUpdated($path,$time) { + return $this->filemtime($path)>$time; + } + + public function getCache(){ + return new \OC\Files\Cache\Cache($this); + } + + public function getScanner(){ + return new \OC\Files\Cache\Scanner($this); + } + + /** + * get the owner of a path + * @param string $path The path to get the owner + * @return string uid or false + */ + public function getOwner($path) { + return \OC_User::getUser(); + } +} diff --git a/lib/files/storage/commontest.php b/lib/files/storage/commontest.php new file mode 100644 index 00000000000..2b42cfe1156 --- /dev/null +++ b/lib/files/storage/commontest.php @@ -0,0 +1,80 @@ +<?php + +/** +* ownCloud +* +* @author Robin Appelman +* @copyright 2012 Robin Appelman icewind@owncloud.com +* +* This library is free software; you can redistribute it and/or +* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE +* License as published by the Free Software Foundation; either +* version 3 of the License, or any later version. +* +* This library is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU AFFERO GENERAL PUBLIC LICENSE for more details. +* +* You should have received a copy of the GNU Affero General Public +* License along with this library. If not, see <http://www.gnu.org/licenses/>. +* +*/ + +/** + * test implementation for \OC\Files\Storage\Common with \OC\Files\Storage\Local + */ + +namespace OC\Files\Storage; + +class CommonTest extends \OC\Files\Storage\Common{ + /** + * underlying local storage used for missing functions + * @var \OC\Files\Storage\Local + */ + private $storage; + + public function __construct($params) { + $this->storage=new \OC\Files\Storage\Local($params); + } + + public function getId(){ + return 'test::'.$this->storage->getId(); + } + public function mkdir($path) { + return $this->storage->mkdir($path); + } + public function rmdir($path) { + return $this->storage->rmdir($path); + } + public function opendir($path) { + return $this->storage->opendir($path); + } + public function stat($path) { + return $this->storage->stat($path); + } + public function filetype($path) { + return $this->storage->filetype($path); + } + public function isReadable($path) { + return $this->storage->isReadable($path); + } + public function isUpdatable($path) { + return $this->storage->isUpdatable($path); + } + public function file_exists($path) { + return $this->storage->file_exists($path); + } + public function unlink($path) { + return $this->storage->unlink($path); + } + public function fopen($path,$mode) { + return $this->storage->fopen($path,$mode); + } + public function free_space($path) { + return $this->storage->free_space($path); + } + public function touch($path, $mtime=null) { + return $this->storage->touch($path,$mtime); + } +}
\ No newline at end of file diff --git a/lib/files/storage/local.php b/lib/files/storage/local.php new file mode 100644 index 00000000000..71f3bedad39 --- /dev/null +++ b/lib/files/storage/local.php @@ -0,0 +1,208 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +namespace OC\Files\Storage; + +/** + * for local filestore, we only have to map the paths + */ +class Local extends \OC\Files\Storage\Common{ + protected $datadir; + public function __construct($arguments) { + $this->datadir=$arguments['datadir']; + if(substr($this->datadir,-1)!=='/') { + $this->datadir.='/'; + } + } + public function getId(){ + return 'local::'.$this->datadir; + } + public function mkdir($path) { + return @mkdir($this->datadir.$path); + } + public function rmdir($path) { + return @rmdir($this->datadir.$path); + } + public function opendir($path) { + return opendir($this->datadir.$path); + } + public function is_dir($path) { + if(substr($path,-1)=='/') { + $path=substr($path,0,-1); + } + return is_dir($this->datadir.$path); + } + public function is_file($path) { + return is_file($this->datadir.$path); + } + public function stat($path) { + return stat($this->datadir.$path); + } + public function filetype($path) { + $filetype=filetype($this->datadir.$path); + if($filetype=='link') { + $filetype=filetype(realpath($this->datadir.$path)); + } + return $filetype; + } + public function filesize($path) { + if($this->is_dir($path)) { + return 0; + }else{ + return filesize($this->datadir.$path); + } + } + public function isReadable($path) { + return is_readable($this->datadir.$path); + } + public function isUpdatable($path) { + return is_writable($this->datadir.$path); + } + public function file_exists($path) { + return file_exists($this->datadir.$path); + } + public function filemtime($path) { + return filemtime($this->datadir.$path); + } + public function touch($path, $mtime=null) { + // sets the modification time of the file to the given value. + // If mtime is nil the current time is set. + // note that the access time of the file always changes to the current time. + if(!is_null($mtime)) { + $result=touch( $this->datadir.$path, $mtime ); + }else{ + $result=touch( $this->datadir.$path); + } + if( $result ) { + clearstatcache( true, $this->datadir.$path ); + } + + return $result; + } + public function file_get_contents($path) { + return file_get_contents($this->datadir.$path); + } + public function file_put_contents($path,$data) { + return file_put_contents($this->datadir.$path,$data); + } + public function unlink($path) { + return $this->delTree($path); + } + public function rename($path1,$path2) { + if (!$this->isUpdatable($path1)) { + \OC_Log::write('core','unable to rename, file is not writable : '.$path1,\OC_Log::ERROR); + return false; + } + if(! $this->file_exists($path1)) { + \OC_Log::write('core','unable to rename, file does not exists : '.$path1,\OC_Log::ERROR); + return false; + } + + if($return=rename($this->datadir.$path1,$this->datadir.$path2)) { + } + return $return; + } + public function copy($path1,$path2) { + if($this->is_dir($path2)) { + if(!$this->file_exists($path2)) { + $this->mkdir($path2); + } + $source=substr($path1, strrpos($path1,'/')+1); + $path2.=$source; + } + return copy($this->datadir.$path1,$this->datadir.$path2); + } + public function fopen($path,$mode) { + if($return=fopen($this->datadir.$path,$mode)) { + switch($mode) { + case 'r': + break; + case 'r+': + case 'w+': + case 'x+': + case 'a+': + break; + case 'w': + case 'x': + case 'a': + break; + } + } + return $return; + } + + public function getMimeType($path) { + if($this->isReadable($path)) { + return \OC_Helper::getMimeType($this->datadir.$path); + }else{ + return false; + } + } + + private function delTree($dir) { + $dirRelative=$dir; + $dir=$this->datadir.$dir; + if (!file_exists($dir)) return true; + if (!is_dir($dir) || is_link($dir)) return unlink($dir); + foreach (scandir($dir) as $item) { + if ($item == '.' || $item == '..') continue; + if(is_file($dir.'/'.$item)) { + if(unlink($dir.'/'.$item)) { + } + }elseif(is_dir($dir.'/'.$item)) { + if (!$this->delTree($dirRelative. "/" . $item)) { + return false; + }; + } + } + if($return=rmdir($dir)) { + } + return $return; + } + + public function hash($path,$type,$raw=false) { + return hash_file($type,$this->datadir.$path,$raw); + } + + public function free_space($path) { + return @disk_free_space($this->datadir.$path); + } + + public function search($query) { + return $this->searchInDir($query); + } + public function getLocalFile($path) { + return $this->datadir.$path; + } + public function getLocalFolder($path) { + return $this->datadir.$path; + } + + protected function searchInDir($query,$dir='') { + $files=array(); + foreach (scandir($this->datadir.$dir) as $item) { + if ($item == '.' || $item == '..') continue; + if(strstr(strtolower($item), strtolower($query))!==false) { + $files[]=$dir.'/'.$item; + } + if(is_dir($this->datadir.$dir.'/'.$item)) { + $files=array_merge($files,$this->searchInDir($query,$dir.'/'.$item)); + } + } + return $files; + } + + /** + * check if a file or folder has been updated since $time + * @param int $time + * @return bool + */ + public function hasUpdated($path,$time) { + return $this->filemtime($path)>$time; + } +} diff --git a/lib/files/storage/storage.php b/lib/files/storage/storage.php new file mode 100644 index 00000000000..1f5c9356294 --- /dev/null +++ b/lib/files/storage/storage.php @@ -0,0 +1,66 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +namespace OC\Files\Storage; + +/** + * Provide a common interface to all different storage options + */ +interface Storage{ + public function __construct($parameters); + public function getId(); + public function mkdir($path); + public function rmdir($path); + public function opendir($path); + public function is_dir($path); + public function is_file($path); + public function stat($path); + public function filetype($path); + public function filesize($path); + public function isCreatable($path); + public function isReadable($path); + public function isUpdatable($path); + public function isDeletable($path); + public function isSharable($path); + public function getPermissions($path); + public function file_exists($path); + public function filemtime($path); + public function file_get_contents($path); + public function file_put_contents($path,$data); + public function unlink($path); + public function rename($path1,$path2); + public function copy($path1,$path2); + public function fopen($path,$mode); + public function getMimeType($path); + public function hash($type,$path,$raw = false); + public function free_space($path); + public function search($query); + public function touch($path, $mtime=null); + public function getLocalFile($path);// get a path to a local version of the file, whether the original file is local or remote + public function getLocalFolder($path);// get a path to a local version of the folder, whether the original file is local or remote + /** + * check if a file or folder has been updated since $time + * @param int $time + * @return bool + * + * hasUpdated for folders should return at least true if a file inside the folder is add, removed or renamed. + * returning true for other changes in the folder is optional + */ + public function hasUpdated($path,$time); + + /** + * @return \OC\Files\Cache\Cache + */ + public function getCache(); + /** + * @return \OC\Files\Cache\Scanner + */ + public function getScanner(); + + public function getOwner($path); +} diff --git a/lib/files/storage/temporary.php b/lib/files/storage/temporary.php new file mode 100644 index 00000000000..ffc55e27507 --- /dev/null +++ b/lib/files/storage/temporary.php @@ -0,0 +1,26 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +namespace OC\Files\Storage; + +/** + * local storage backnd in temporary folder for testing purpores + */ +class Temporary extends Local{ + public function __construct($arguments) { + $this->datadir=\OC_Helper::tmpFolder(); + } + + public function cleanUp() { + \OC_Helper::rmdirr($this->datadir); + } + + public function __destruct() { + $this->cleanUp(); + } +} diff --git a/lib/files/view.php b/lib/files/view.php new file mode 100644 index 00000000000..82455d582eb --- /dev/null +++ b/lib/files/view.php @@ -0,0 +1,817 @@ +<?php +/** + * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com> + * This file is licensed under the Affero General Public License version 3 or + * later. + * See the COPYING-README file. + */ + +/** + * Class to provide access to ownCloud filesystem via a "view", and methods for + * working with files within that view (e.g. read, write, delete, etc.). Each + * view is restricted to a set of directories via a virtual root. The default view + * uses the currently logged in user's data directory as root (parts of + * OC_Filesystem are merely a wrapper for OC_FilesystemView). + * + * Apps that need to access files outside of the user data folders (to modify files + * belonging to a user other than the one currently logged in, for example) should + * use this class directly rather than using OC_Filesystem, or making use of PHP's + * built-in file manipulation functions. This will ensure all hooks and proxies + * are triggered correctly. + * + * Filesystem functions are not called directly; they are passed to the correct + * \OC\Files\Storage\Storage object + */ + +namespace OC\Files; + +class View { + private $fakeRoot = ''; + private $internal_path_cache = array(); + private $storage_cache = array(); + + public function __construct($root) { + $this->fakeRoot = $root; + } + + public function getAbsolutePath($path) { + if (!$path) { + $path = '/'; + } + if ($path[0] !== '/') { + $path = '/' . $path; + } + return $this->fakeRoot . $path; + } + + /** + * change the root to a fake root + * + * @param string $fakeRoot + * @return bool + */ + public function chroot($fakeRoot) { + if (!$fakeRoot == '') { + if ($fakeRoot[0] !== '/') { + $fakeRoot = '/' . $fakeRoot; + } + } + $this->fakeRoot = $fakeRoot; + } + + /** + * get the fake root + * + * @return string + */ + public function getRoot() { + return $this->fakeRoot; + } + + /** + * get path relative to the root of the view + * + * @param string $path + * @return string + */ + public function getRelativePath($path) { + if ($this->fakeRoot == '') { + return $path; + } + if (strpos($path, $this->fakeRoot) !== 0) { + return null; + } else { + $path = substr($path, strlen($this->fakeRoot)); + if (strlen($path) === 0) { + return '/'; + } else { + return $path; + } + } + } + + /** + * get the mountpoint of the storage object for a path + ( note: because a storage is not always mounted inside the fakeroot, the returned mountpoint is relative to the absolute root of the filesystem and doesn't take the chroot into account + * + * @param string $path + * @return string + */ + public function getMountPoint($path) { + return Filesystem::getMountPoint($this->getAbsolutePath($path)); + } + + /** + * return the path to a local version of the file + * we need this because we can't know if a file is stored local or not from outside the filestorage and for some purposes a local file is needed + * + * @param string $path + * @return string + */ + public function getLocalFile($path) { + $parent = substr($path, 0, strrpos($path, '/')); + list($storage, $internalPath) = Filesystem::resolvePath($path); + if (Filesystem::isValidPath($parent) and $storage) { + return $storage->getLocalFile($internalPath); + } else { + return null; + } + } + + /** + * @param string $path + * @return string + */ + public function getLocalFolder($path) { + $parent = substr($path, 0, strrpos($path, '/')); + list($storage, $internalPath) = Filesystem::resolvePath($path); + if (Filesystem::isValidPath($parent) and $storage) { + return $storage->getLocalFolder($internalPath); + } else { + return null; + } + } + + /** + * the following functions operate with arguments and return values identical + * to those of their PHP built-in equivalents. Mostly they are merely wrappers + * for \OC\Files\Storage\Storage via basicOperation(). + */ + public function mkdir($path) { + return $this->basicOperation('mkdir', $path, array('create', 'write')); + } + + public function rmdir($path) { + return $this->basicOperation('rmdir', $path, array('delete')); + } + + public function opendir($path) { + return $this->basicOperation('opendir', $path, array('read')); + } + + public function readdir($handle) { + $fsLocal = new Storage\Local(array('datadir' => '/')); + return $fsLocal->readdir($handle); + } + + public function is_dir($path) { + if ($path == '/') { + return true; + } + return $this->basicOperation('is_dir', $path); + } + + public function is_file($path) { + if ($path == '/') { + return false; + } + return $this->basicOperation('is_file', $path); + } + + public function stat($path) { + return $this->basicOperation('stat', $path); + } + + public function filetype($path) { + return $this->basicOperation('filetype', $path); + } + + public function filesize($path) { + return $this->basicOperation('filesize', $path); + } + + public function readfile($path) { + @ob_end_clean(); + $handle = $this->fopen($path, 'rb'); + if ($handle) { + $chunkSize = 8192; // 8 MB chunks + while (!feof($handle)) { + echo fread($handle, $chunkSize); + flush(); + } + $size = $this->filesize($path); + return $size; + } + return false; + } + + public function isCreatable($path) { + return $this->basicOperation('isCreatable', $path); + } + + public function isReadable($path) { + return $this->basicOperation('isReadable', $path); + } + + public function isUpdatable($path) { + return $this->basicOperation('isUpdatable', $path); + } + + public function isDeletable($path) { + return $this->basicOperation('isDeletable', $path); + } + + public function isSharable($path) { + return $this->basicOperation('isSharable', $path); + } + + public function file_exists($path) { + if ($path == '/') { + return true; + } + return $this->basicOperation('file_exists', $path); + } + + public function filemtime($path) { + return $this->basicOperation('filemtime', $path); + } + + public function touch($path, $mtime = null) { + if (!is_null($mtime) and !is_numeric($mtime)) { + $mtime = strtotime($mtime); + } + return $this->basicOperation('touch', $path, array('write'), $mtime); + } + + public function file_get_contents($path) { + return $this->basicOperation('file_get_contents', $path, array('read')); + } + + public function file_put_contents($path, $data) { + if (is_resource($data)) { //not having to deal with streams in file_put_contents makes life easier + $absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path)); + if (\OC_FileProxy::runPreProxies('file_put_contents', $absolutePath, $data) && Filesystem::isValidPath($path)) { + $path = $this->getRelativePath($absolutePath); + $exists = $this->file_exists($path); + $run = true; + if ($this->fakeRoot == Filesystem::getRoot()) { + if (!$exists) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_create, + array( + Filesystem::signal_param_path => $path, + Filesystem::signal_param_run => &$run + ) + ); + } + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_write, + array( + Filesystem::signal_param_path => $path, + Filesystem::signal_param_run => &$run + ) + ); + } + if (!$run) { + return false; + } + $target = $this->fopen($path, 'w'); + if ($target) { + $count = \OC_Helper::streamCopy($data, $target); + fclose($target); + fclose($data); + if ($this->fakeRoot == Filesystem::getRoot()) { + if (!$exists) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_post_create, + array(Filesystem::signal_param_path => $path) + ); + } + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_post_write, + array(Filesystem::signal_param_path => $path) + ); + } + \OC_FileProxy::runPostProxies('file_put_contents', $absolutePath, $count); + return $count > 0; + } else { + return false; + } + } else { + return false; + } + } else { + return $this->basicOperation('file_put_contents', $path, array('create', 'write'), $data); + } + } + + public function unlink($path) { + return $this->basicOperation('unlink', $path, array('delete')); + } + + public function deleteAll($directory, $empty = false) { + return $this->basicOperation('deleteAll', $directory, array('delete'), $empty); + } + + public function rename($path1, $path2) { + $postFix1 = (substr($path1, -1, 1) === '/') ? '/' : ''; + $postFix2 = (substr($path2, -1, 1) === '/') ? '/' : ''; + $absolutePath1 = Filesystem::normalizePath($this->getAbsolutePath($path1)); + $absolutePath2 = Filesystem::normalizePath($this->getAbsolutePath($path2)); + if (\OC_FileProxy::runPreProxies('rename', $absolutePath1, $absolutePath2) and Filesystem::isValidPath($path2)) { + $path1 = $this->getRelativePath($absolutePath1); + $path2 = $this->getRelativePath($absolutePath2); + + if ($path1 == null or $path2 == null) { + return false; + } + $run = true; + if ($this->fakeRoot == Filesystem::getRoot()) { + \OC_Hook::emit( + Filesystem::CLASSNAME, Filesystem::signal_rename, + array( + Filesystem::signal_param_oldpath => $path1, + Filesystem::signal_param_newpath => $path2, + Filesystem::signal_param_run => &$run + ) + ); + } + if ($run) { + $mp1 = $this->getMountPoint($path1 . $postFix1); + $mp2 = $this->getMountPoint($path2 . $postFix2); + if ($mp1 == $mp2) { + list($storage, $internalPath1) = Filesystem::resolvePath($path1 . $postFix1); + list(, $internalPath2) = Filesystem::resolvePath($path2 . $postFix2); + if ($storage) { + $result = $storage->rename($internalPath1, $internalPath2); + } else { + $result = false; + } + } else { + $source = $this->fopen($path1 . $postFix1, 'r'); + $target = $this->fopen($path2 . $postFix2, 'w'); + $count = \OC_Helper::streamCopy($source, $target); + list($storage1, $internalPath1) = Filesystem::resolvePath($path1 . $postFix1); + $storage1->unlink($internalPath1); + $result = $count > 0; + } + if ($this->fakeRoot == Filesystem::getRoot()) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_post_rename, + array( + Filesystem::signal_param_oldpath => $path1, + Filesystem::signal_param_newpath => $path2 + ) + ); + } + return $result; + } else { + return false; + } + } else { + return false; + } + } + + public function copy($path1, $path2) { + $postFix1 = (substr($path1, -1, 1) === '/') ? '/' : ''; + $postFix2 = (substr($path2, -1, 1) === '/') ? '/' : ''; + $absolutePath1 = Filesystem::normalizePath($this->getAbsolutePath($path1)); + $absolutePath2 = Filesystem::normalizePath($this->getAbsolutePath($path2)); + if (\OC_FileProxy::runPreProxies('copy', $absolutePath1, $absolutePath2) and Filesystem::isValidPath($path2)) { + $path1 = $this->getRelativePath($absolutePath1); + $path2 = $this->getRelativePath($absolutePath2); + + if ($path1 == null or $path2 == null) { + return false; + } + $run = true; + $exists = $this->file_exists($path2); + if ($this->fakeRoot == Filesystem::getRoot()) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_copy, + array( + Filesystem::signal_param_oldpath => $path1, + Filesystem::signal_param_newpath => $path2, + Filesystem::signal_param_run => &$run + ) + ); + if ($run and !$exists) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_create, + array( + Filesystem::signal_param_path => $path2, + Filesystem::signal_param_run => &$run + ) + ); + } + if ($run) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_write, + array( + Filesystem::signal_param_path => $path2, + Filesystem::signal_param_run => &$run + ) + ); + } + } + if ($run) { + $mp1 = $this->getMountPoint($path1 . $postFix1); + $mp2 = $this->getMountPoint($path2 . $postFix2); + if ($mp1 == $mp2) { + list($storage, $internalPath1) = Filesystem::resolvePath($path1 . $postFix1); + list(, $internalPath2) = Filesystem::resolvePath($path2 . $postFix2); + if ($storage) { + $result = $storage->copy($internalPath1, $internalPath2); + } else { + $result = false; + } + } else { + $source = $this->fopen($path1 . $postFix1, 'r'); + $target = $this->fopen($path2 . $postFix2, 'w'); + $result = \OC_Helper::streamCopy($source, $target); + } + if ($this->fakeRoot == Filesystem::getRoot()) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_post_copy, + array( + Filesystem::signal_param_oldpath => $path1, + Filesystem::signal_param_newpath => $path2 + ) + ); + if (!$exists) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_post_create, + array(Filesystem::signal_param_path => $path2) + ); + } + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_post_write, + array(Filesystem::signal_param_path => $path2) + ); + } else { // no real copy, file comes from somewhere else, e.g. version rollback -> just update the file cache and the webdav properties without all the other post_write actions + Filesystem::removeETagHook(array("path" => $path2), $this->fakeRoot); + } + return $result; + } else { + return false; + } + } else { + return false; + } + } + + public function fopen($path, $mode) { + $hooks = array(); + switch ($mode) { + case 'r': + case 'rb': + $hooks[] = 'read'; + break; + case 'r+': + case 'rb+': + case 'w+': + case 'wb+': + case 'x+': + case 'xb+': + case 'a+': + case 'ab+': + $hooks[] = 'read'; + $hooks[] = 'write'; + break; + case 'w': + case 'wb': + case 'x': + case 'xb': + case 'a': + case 'ab': + $hooks[] = 'write'; + break; + default: + \OC_Log::write('core', 'invalid mode (' . $mode . ') for ' . $path, \OC_Log::ERROR); + } + + return $this->basicOperation('fopen', $path, $hooks, $mode); + } + + public function toTmpFile($path) { + if (Filesystem::isValidPath($path)) { + $source = $this->fopen($path, 'r'); + if ($source) { + $extension = ''; + $extOffset = strpos($path, '.'); + if ($extOffset !== false) { + $extension = substr($path, strrpos($path, '.')); + } + $tmpFile = \OC_Helper::tmpFile($extension); + file_put_contents($tmpFile, $source); + return $tmpFile; + } else { + return false; + } + } else { + return false; + } + } + + public function fromTmpFile($tmpFile, $path) { + if (Filesystem::isValidPath($path)) { + if (!$tmpFile) { + debug_print_backtrace(); + } + $source = fopen($tmpFile, 'r'); + if ($source) { + $this->file_put_contents($path, $source); + unlink($tmpFile); + return true; + } else { + return false; + } + } else { + return false; + } + } + + public function getMimeType($path) { + return $this->basicOperation('getMimeType', $path); + } + + public function hash($type, $path, $raw = false) { + $postFix = (substr($path, -1, 1) === '/') ? '/' : ''; + $absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path)); + if (\OC_FileProxy::runPreProxies('hash', $absolutePath) && Filesystem::isValidPath($path)) { + $path = $this->getRelativePath($absolutePath); + if ($path == null) { + return false; + } + if (Filesystem::$loaded && $this->fakeRoot == Filesystem::getRoot()) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + Filesystem::signal_read, + array(Filesystem::signal_param_path => $path) + ); + } + list($storage, $internalPath) = Filesystem::resolvePath($path . $postFix); + if ($storage) { + $result = $storage->hash($type, $internalPath, $raw); + $result = \OC_FileProxy::runPostProxies('hash', $absolutePath, $result); + return $result; + } + } + return null; + } + + public function free_space($path = '/') { + return $this->basicOperation('free_space', $path); + } + + /** + * @brief abstraction layer for basic filesystem functions: wrapper for \OC\Files\Storage\Storage + * @param string $operation + * @param string $path + * @param array $hooks (optional) + * @param mixed $extraParam (optional) + * @return mixed + * + * This method takes requests for basic filesystem functions (e.g. reading & writing + * files), processes hooks and proxies, sanitises paths, and finally passes them on to + * \OC\Files\Storage\Storage for delegation to a storage backend for execution + */ + private function basicOperation($operation, $path, $hooks = array(), $extraParam = null) { + $postFix = (substr($path, -1, 1) === '/') ? '/' : ''; + $absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path)); + if (\OC_FileProxy::runPreProxies($operation, $absolutePath, $extraParam) and Filesystem::isValidPath($path)) { + $path = $this->getRelativePath($absolutePath); + if ($path == null) { + return false; + } + $run = $this->runHooks($hooks, $path); + list($storage, $internalPath) = Filesystem::resolvePath($path . $postFix); + if ($run and $storage) { + if (!is_null($extraParam)) { + $result = $storage->$operation($internalPath, $extraParam); + } else { + $result = $storage->$operation($internalPath); + } + $result = \OC_FileProxy::runPostProxies($operation, $this->getAbsolutePath($path), $result); + if (Filesystem::$loaded and $this->fakeRoot == Filesystem::getRoot()) { + if ($operation != 'fopen') { //no post hooks for fopen, the file stream is still open + $this->runHooks($hooks, $path, true); + } + } + return $result; + } + } + return null; + } + + private function runHooks($hooks, $path, $post = false) { + $prefix = ($post) ? 'post_' : ''; + $run = true; + if (Filesystem::$loaded and $this->fakeRoot == Filesystem::getRoot()) { + foreach ($hooks as $hook) { + if ($hook != 'read') { + \OC_Hook::emit( + Filesystem::CLASSNAME, + $prefix . $hook, + array( + Filesystem::signal_param_run => &$run, + Filesystem::signal_param_path => $path + ) + ); + } elseif (!$post) { + \OC_Hook::emit( + Filesystem::CLASSNAME, + $prefix . $hook, + array( + Filesystem::signal_param_path => $path + ) + ); + } + } + } + return $run; + } + + /** + * check if a file or folder has been updated since $time + * + * @param string $path + * @param int $time + * @return bool + */ + public function hasUpdated($path, $time) { + return $this->basicOperation('hasUpdated', $path, array(), $time); + } + + /** + * get the filesystem info + * + * @param string $path + * @return array + * + * returns an associative array with the following keys: + * - size + * - mtime + * - mimetype + * - encrypted + * - versioned + */ + public function getFileInfo($path) { + $path = Filesystem::normalizePath($this->fakeRoot . '/' . $path); + /** + * @var \OC\Files\Storage\Storage $storage + * @var string $internalPath + */ + list($storage, $internalPath) = Filesystem::resolvePath($path); + $cache = $storage->getCache(); + + if (!$cache->inCache($internalPath)) { + $scanner = $storage->getScanner(); + $scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW); + } + + $data = $cache->get($internalPath); + + if ($data['mimetype'] === 'httpd/unix-directory') { + //add the sizes of other mountpoints to the folder + $mountPoints = Filesystem::getMountPoints($path); + foreach ($mountPoints as $mountPoint) { + $subStorage = Filesystem::getStorage($mountPoint); + $subCache = $subStorage->getCache(); + $rootEntry = $subCache->get(''); + + $data['size'] += $rootEntry['size']; + } + } + + $data['permissions'] = Cache\Permissions::get($data['fileid'], \OC_User::getUser()); + + return $data; + } + + /** + * get the content of a directory + * + * @param string $directory path under datadirectory + * @return array + */ + public function getDirectoryContent($directory, $mimetype_filter = '') { + $path = Filesystem::normalizePath($this->fakeRoot . '/' . $directory); + /** + * @var \OC\Files\Storage\Storage $storage + * @var string $internalPath + */ + list($storage, $internalPath) = Filesystem::resolvePath($path); + $cache = $storage->getCache(); + + if (!$cache->inCache($internalPath)) { + $scanner = $storage->getScanner(); + $scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW); + } + + $files = $cache->getFolderContents($internalPath); //TODO: mimetype_filter + + //add a folder for any mountpoint in this directory and add the sizes of other mountpoints to the folders + $mountPoints = Filesystem::getMountPoints($path); + $dirLength = strlen($path); + foreach ($mountPoints as $mountPoint) { + $subStorage = Filesystem::getStorage($mountPoint); + $subCache = $subStorage->getCache(); + $rootEntry = $subCache->get(''); + + $relativePath = trim(substr($mountPoint, $dirLength), '/'); + if ($pos = strpos($relativePath, '/')) { //mountpoint inside subfolder add size to the correct folder + $entryName = substr($relativePath, 0, $pos); + foreach ($files as &$entry) { + if ($entry['name'] === $entryName) { + $entry['size'] += $rootEntry['size']; + } + } + } else { //mountpoint in this folder, add an entry for it + $rootEntry['name'] = $relativePath; + $files[] = $rootEntry; + } + } + + $ids = array(); + + foreach ($files as $i => $file) { + $files[$i]['type'] = $file['mimetype'] === 'httpd/unix-directory' ? 'dir' : 'file'; + $ids[] = $file['fileid']; + } + + $permissions = Cache\Permissions::getMultiple($ids, \OC_User::getUser()); + foreach ($files as $i => $file) { + $files[$i]['permissions'] = $permissions[$file['fileid']]; + } + + usort($files, "fileCmp"); //TODO: remove this once ajax is merged + return $files; + } + + /** + * change file metadata + * + * @param string $path + * @param array $data + * @return int + * + * returns the fileid of the updated file + */ + public function putFileInfo($path, $data) { + $path = Filesystem::normalizePath($this->fakeRoot . '/' . $path); + /** + * @var \OC\Files\Storage\Storage $storage + * @var string $internalPath + */ + list($storage, $internalPath) = Filesystem::resolvePath($path); + $cache = $storage->getCache(); + + if (!$cache->inCache($internalPath)) { + $scanner = $storage->getScanner(); + $scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW); + } + + return $cache->put($internalPath, $data); + } + + /** + * search for files with the name matching $query + * + * @param string $query + * @return array + */ + public function search($query) { + $files = array(); + $rootLength = strlen($this->fakeRoot); + + $mountPoint = Filesystem::getMountPoint($this->fakeRoot); + $storage = Filesystem::getStorage($mountPoint); + $cache = $storage->getCache(); + + $results = $cache->search('%' . $query . '%'); + foreach ($results as $result) { + if (substr($mountPoint . $result['path'], 0, $rootLength) === $this->fakeRoot) { + $result['path'] = substr($mountPoint . $result['path'], $rootLength); + $files[] = $result; + } + } + + $mountPoints = Filesystem::getMountPoints($this->fakeRoot); + foreach ($mountPoints as $mountPoint) { + $storage = Filesystem::getStorage($mountPoint); + $cache = $storage->getCache(); + + $relativeMountPoint = substr($mountPoint, $rootLength); + $results = $cache->search('%' . $query . '%'); + foreach ($results as $result) { + $result['path'] = $relativeMountPoint . $result['path']; + $files[] = $result; + } + } + + return $files; + } +} |