638 lines
15 KiB
PHP
638 lines
15 KiB
PHP
<?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 {
|
|
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) {
|
|
$mount = Mount::find($path);
|
|
if ($mount) {
|
|
return $mount->getMountPoint();
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* get a list of all mount points in a directory
|
|
*
|
|
* @param string $path
|
|
* @return string[]
|
|
*/
|
|
static public function getMountPoints($path) {
|
|
$result = array();
|
|
$mounts = Mount::findIn($path);
|
|
foreach ($mounts as $mount) {
|
|
$result[] = $mount->getMountPoint();
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* get the storage mounted at $mountPoint
|
|
*
|
|
* @param string $mountPoint
|
|
* @return \OC\Files\Storage\Storage
|
|
*/
|
|
public static function getStorage($mountPoint) {
|
|
$mount = Mount::find($mountPoint);
|
|
return $mount->getStorage();
|
|
}
|
|
|
|
/**
|
|
* 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) {
|
|
$mount = Mount::find($path);
|
|
if ($mount) {
|
|
return array($mount->getStorage(), $mount->getInternalPath($path));
|
|
} else {
|
|
return array(null, null);
|
|
}
|
|
}
|
|
|
|
static public function init($root) {
|
|
if (self::$defaultInstance) {
|
|
return false;
|
|
}
|
|
self::$defaultInstance = new View($root);
|
|
|
|
//load custom mount config
|
|
self::initMountPoints();
|
|
|
|
self::$loaded = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Initialize system and personal mount points for a user
|
|
*
|
|
* @param string $user
|
|
*/
|
|
public static function initMountPoints($user = '') {
|
|
if ($user == '') {
|
|
$user = \OC_User::getUser();
|
|
}
|
|
// Load system mount points
|
|
if (is_file(\OC::$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 => $mounts) {
|
|
if (\OC_Group::inGroup($user, $group)) {
|
|
foreach ($mounts as $mountPoint => $options) {
|
|
$mountPoint = self::setUserVars($user, $mountPoint);
|
|
foreach ($options as &$option) {
|
|
$option = self::setUserVars($user, $option);
|
|
}
|
|
self::mount($options['class'], $options['options'], $mountPoint);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (isset($mountConfig['user'])) {
|
|
foreach ($mountConfig['user'] as $mountUser => $mounts) {
|
|
if ($user === 'all' or strtolower($mountUser) === strtolower($user)) {
|
|
foreach ($mounts as $mountPoint => $options) {
|
|
$mountPoint = self::setUserVars($user, $mountPoint);
|
|
foreach ($options as &$option) {
|
|
$option = self::setUserVars($user, $option);
|
|
}
|
|
self::mount($options['class'], $options['options'], $mountPoint);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Load personal mount points
|
|
$root = \OC_User::getHome($user);
|
|
self::mount('\OC\Files\Storage\Local', array('datadir' => $root), $user);
|
|
if (is_file($root . '/mount.php')) {
|
|
$mountConfig = include $root . '/mount.php';
|
|
if (isset($mountConfig['user'][$user])) {
|
|
foreach ($mountConfig['user'][$user] as $mountPoint => $options) {
|
|
self::mount($options['class'], $options['options'], $mountPoint);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* fill in the correct values for $user, and $password placeholders
|
|
*
|
|
* @param string $input
|
|
* @param string $input
|
|
* @return string
|
|
*/
|
|
private static function setUserVars($user, $input) {
|
|
return str_replace('$user', $user, $input);
|
|
}
|
|
|
|
/**
|
|
* get the default filesystem view
|
|
*
|
|
* @return View
|
|
*/
|
|
static public function getView() {
|
|
return self::$defaultInstance;
|
|
}
|
|
|
|
/**
|
|
* tear down the filesystem, removing all storage providers
|
|
*/
|
|
static public function tearDown() {
|
|
self::clearMounts();
|
|
}
|
|
|
|
/**
|
|
* @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() {
|
|
Mount::clear();
|
|
}
|
|
|
|
/**
|
|
* 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, $mountpoint) {
|
|
new Mount($class, $mountpoint, $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) {
|
|
$path = self::normalizePath($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) {
|
|
$blacklist = \OC_Config::getValue('blacklisted_files', array('.htaccess'));
|
|
if (isset($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($query);
|
|
}
|
|
|
|
static public function searchByMime($query) {
|
|
return self::$defaultInstance->searchByMime($query);
|
|
}
|
|
|
|
/**
|
|
* check if a file or folder has been updated since $time
|
|
*
|
|
* @param string $path
|
|
* @param int $time
|
|
* @return bool
|
|
*/
|
|
static public function hasUpdated($path, $time) {
|
|
return self::$defaultInstance->hasUpdated($path, $time);
|
|
}
|
|
|
|
/**
|
|
* @brief Fix common problems with a file 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) {
|
|
return self::$defaultInstance->getDirectoryContent($directory);
|
|
}
|
|
|
|
/**
|
|
* Get the path of a file by id
|
|
*
|
|
* Note that the resulting path is not guarantied to be unique for the id, multiple paths can point to the same file
|
|
*
|
|
* @param int $id
|
|
* @return string
|
|
*/
|
|
public static function getPath($id) {
|
|
return self::$defaultInstance->getPath($id);
|
|
}
|
|
|
|
/**
|
|
* Get the owner for a file or folder
|
|
*
|
|
* @param string $path
|
|
* @return string
|
|
*/
|
|
public static function getOwner($path) {
|
|
return self::$defaultInstance->getOwner($path);
|
|
}
|
|
|
|
/**
|
|
* get the ETag for a file or folder
|
|
*
|
|
* @param string $path
|
|
* @return string
|
|
*/
|
|
static public function getETag($path) {
|
|
return self::$defaultInstance->getETag($path);
|
|
}
|
|
}
|
|
|
|
\OC_Hook::connect('OC_Filesystem', 'post_write', '\OC\Files\Cache\Updater', 'writeHook');
|
|
\OC_Hook::connect('OC_Filesystem', 'post_delete', '\OC\Files\Cache\Updater', 'deleteHook');
|
|
\OC_Hook::connect('OC_Filesystem', 'post_rename', '\OC\Files\Cache\Updater', 'renameHook');
|
|
|
|
\OC_Util::setupFS();
|