server/apps/files_sharing/sharedstorage.php
Sam Tuke 28a72e0e3c Fixed deleteAll function for deleting all old versions of files (expireAll)
Added new readdir() method to all storage classes and handlers (only working implementation in local.php)
2012-06-19 19:42:40 +01:00

534 lines
15 KiB
PHP

<?php
/**
* ownCloud
*
* @author Michael Gapczynski
* @copyright 2011 Michael Gapczynski GapczynskiM@gmail.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/>.
*
*/
require_once( 'lib_share.php' );
/**
* Convert target path to source path and pass the function call to the correct storage provider
*/
class OC_Filestorage_Shared extends OC_Filestorage {
private $datadir;
private $sourcePaths = array();
public function __construct($arguments) {
$this->datadir = $arguments['datadir'];
$this->datadir .= "/";
}
public function getInternalPath($path) {
$mountPoint = OC_Filesystem::getMountPoint($path);
$internalPath = substr($path, strlen($mountPoint));
return $internalPath;
}
public function getSource($target) {
$target = $this->datadir.$target;
if (array_key_exists($target, $this->sourcePaths)) {
return $this->sourcePaths[$target];
} else {
$source = OC_Share::getSource($target);
$this->sourcePaths[$target] = $source;
return $source;
}
}
public function mkdir($path) {
if ($path == "" || $path == "/" || !$this->is_writable($path)) {
return false;
} else {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->mkdir($this->getInternalPath($source));
}
}
}
public function rmdir($path) {
// The folder will be removed from the database, but won't be deleted from the owner's filesystem
OC_Share::unshareFromMySelf($this->datadir.$path);
$this->clearFolderSizeCache($path);
}
public function opendir($path) {
if ($path == "" || $path == "/") {
$path = $this->datadir.$path;
$sharedItems = OC_Share::getItemsInFolder($path);
$files = array();
foreach ($sharedItems as $item) {
// If item is in the root of the shared storage provider and the item exists add it to the fakedirs
if (dirname($item['target'])."/" == $path && $this->file_exists(basename($item['target']))) {
$files[] = basename($item['target']);
}
}
OC_FakeDirStream::$dirs['shared']=$files;
return opendir('fakedir://shared');
} else {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
$dh = $storage->opendir($this->getInternalPath($source));
$modifiedItems = OC_Share::getItemsInFolder($source);
if ($modifiedItems && $dh) {
$sources = array();
$targets = array();
// Remove any duplicate or trailing '/'
$path = preg_replace('{(/)\1+}', "/", $path);
$targetFolder = rtrim($this->datadir.$path, "/");
foreach ($modifiedItems as $item) {
// If the item is in the current directory and the item exists add it to the arrays
if (dirname($item['target']) == $targetFolder && $this->file_exists($path."/".basename($item['target']))) {
// If the item was unshared from self, add it it to the arrays
if ($item['permissions'] == OC_Share::UNSHARED) {
$sources[] = basename($item['source']);
$targets[] = "";
} else {
$sources[] = basename($item['source']);
$targets[] = basename($item['target']);
}
}
}
// Don't waste time if there aren't any modified items in the current directory
if (empty($sources)) {
return $dh;
} else {
global $FAKEDIRS;
$files = array();
while (($filename = readdir($dh)) !== false) {
if ($filename != "." && $filename != "..") {
// If the file isn't in the sources array it isn't modified and can be added as is
if (!in_array($filename, $sources)) {
$files[] = $filename;
// The file has a different name than the source and is added to the fakedirs
} else {
$target = $targets[array_search($filename, $sources)];
// Don't add the file if it was unshared from self by the user
if ($target != "") {
$files[] = $target;
}
}
}
}
$FAKEDIRS['shared'] = $files;
return opendir('fakedir://shared');
}
} else {
return $dh;
}
}
}
}
public function readdir( $path ) {}
public function is_dir($path) {
if ($path == "" || $path == "/") {
return true;
} else {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->is_dir($this->getInternalPath($source));
}
}
}
public function is_file($path) {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->is_file($this->getInternalPath($source));
}
}
// TODO fill in other components of array
public function stat($path) {
if ($path == "" || $path == "/") {
$stat["size"] = $this->filesize($path);
$stat["mtime"] = $this->filemtime($path);
$stat["ctime"] = $this->filectime($path);
return $stat;
} else {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->stat($this->getInternalPath($source));
}
}
}
public function filetype($path) {
if ($path == "" || $path == "/") {
return "dir";
} else {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->filetype($this->getInternalPath($source));
}
}
}
public function filesize($path) {
if ($path == "" || $path == "/" || $this->is_dir($path)) {
return $this->getFolderSize($path);
} else {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->filesize($this->getInternalPath($source));
}
}
}
public function getFolderSize($path) {
return 0; //depricated
}
private function calculateFolderSize($path) {
if ($this->is_file($path)) {
$path = dirname($path);
}
$size = 0;
if ($dh = $this->opendir($path)) {
while (($filename = readdir($dh)) !== false) {
if ($filename != "." && $filename != "..") {
$subFile = $path."/".$filename;
if ($this->is_file($subFile)) {
$size += $this->filesize($subFile);
} else {
$size += $this->getFolderSize($subFile);
}
}
}
if ($size > 0) {
$dbpath = rtrim($this->datadir.$path, "/");
// $query = OCP\DB::prepare("INSERT INTO *PREFIX*foldersize VALUES(?,?)");
// $result = $query->execute(array($dbpath, $size));
}
}
return $size;
}
private function clearFolderSizeCache($path) {
$path = rtrim($path, "/");
$path = preg_replace('{(/)\1+}', "/", $path);
if ($this->is_file($path)) {
$path = dirname($path);
}
$dbpath = rtrim($this->datadir.$path, "/");
// $query = OCP\DB::prepare("DELETE FROM *PREFIX*/*foldersize*/ WHERE path = ?");
// $result = $query->execute(array($dbpath));
if ($path != "/" && $path != "") {
$parts = explode("/", $path);
$part = array_pop($parts);
if (empty($part)) {
array_pop($parts);
}
$parent = implode("/", $parts);
$this->clearFolderSizeCache($parent);
}
}
public function is_readable($path) {
return true;
}
public function is_writable($path) {
if($path == "" || $path == "/"){
return false;
}elseif (OC_Share::getPermissions($this->datadir.$path) & OC_Share::WRITE) {
return true;
} else {
return false;
}
}
public function file_exists($path) {
if ($path == "" || $path == "/") {
return true;
} else {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->file_exists($this->getInternalPath($source));
}
}
}
public function filectime($path) {
if ($path == "" || $path == "/") {
$ctime = 0;
if ($dh = $this->opendir($path)) {
while (($filename = readdir($dh)) !== false) {
$tempctime = $this->filectime($filename);
if ($tempctime < $ctime) {
$ctime = $tempctime;
}
}
}
return $ctime;
} else {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->filectime($this->getInternalPath($source));
}
}
}
public function filemtime($path) {
if ($path == "" || $path == "/") {
$mtime = 0;
if ($dh = $this->opendir($path)) {
while (($filename = readdir($dh)) !== false) {
$tempmtime = $this->filemtime($filename);
if ($tempmtime > $mtime) {
$mtime = $tempmtime;
}
}
}
return $mtime;
} else {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->filemtime($this->getInternalPath($source));
}
}
}
public function file_get_contents($path) {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->file_get_contents($this->getInternalPath($source));
}
}
public function file_put_contents($path, $data) {
if ($this->is_writable($path)) {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
$result = $storage->file_put_contents($this->getInternalPath($source), $data);
if ($result) {
$this->clearFolderSizeCache($path);
}
return $result;
}
}
}
public function unlink($path) {
// The item will be removed from the database, but won't be touched on the owner's filesystem
$target = $this->datadir.$path;
// Check if the item is inside a shared folder
if (OC_Share::getParentFolders($target)) {
// If entry for item already exists
if (OC_Share::getItem($target)) {
OC_Share::unshareFromMySelf($target, false);
} else {
OC_Share::pullOutOfFolder($target, $target);
OC_Share::unshareFromMySelf($target, false);
}
// Delete the database entry
} else {
OC_Share::unshareFromMySelf($target);
}
$this->clearFolderSizeCache($this->getInternalPath($target));
return true;
}
public function rename($path1, $path2) {
$oldTarget = $this->datadir.$path1;
$newTarget = $this->datadir.$path2;
// Check if the item is inside a shared folder
if ($folders = OC_Share::getParentFolders($oldTarget)) {
$root1 = substr($path1, 0, strpos($path1, "/"));
$root2 = substr($path1, 0, strpos($path2, "/"));
// Prevent items from being moved into different shared folders until versioning (cut and paste) and prevent items going into 'Shared'
if ($root1 !== $root2) {
return false;
// Check if both paths have write permission
} else if ($this->is_writable($path1) && $this->is_writable($path2)) {
$oldSource = $this->getSource($path1);
$newSource = $folders['source'].substr($newTarget, strlen($folders['target']));
if ($oldSource) {
$storage = OC_Filesystem::getStorage($oldSource);
return $storage->rename($this->getInternalPath($oldSource), $this->getInternalPath($newSource));
}
// If the user doesn't have write permission, items can only be renamed and not moved
} else if (dirname($path1) !== dirname($path2)) {
return false;
// The item will be renamed in the database, but won't be touched on the owner's filesystem
} else {
OC_Share::pullOutOfFolder($oldTarget, $newTarget);
// If this is a folder being renamed, call setTarget in case there are any database entries inside the folder
if (self::is_dir($path1)) {
OC_Share::setTarget($oldTarget, $newTarget);
}
}
} else {
OC_Share::setTarget($oldTarget, $newTarget);
}
$this->clearFolderSizeCache($this->getInternalPath($oldTarget));
$this->clearFolderSizeCache($this->getInternalPath($newTarget));
return true;
}
public function copy($path1, $path2) {
if ($path2 == "" || $path2 == "/") {
// TODO Construct new shared item or should this not be allowed?
} else {
if ($this->is_writable($path2)) {
$tmpFile = $this->toTmpFile($path1);
$result = $this->fromTmpFile($tmpFile, $path2);
if ($result) {
$this->clearFolderSizeCache($path2);
}
return $result;
} else {
return false;
}
}
}
public function fopen($path, $mode) {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->fopen($this->getInternalPath($source), $mode);
}
}
public function toTmpFile($path) {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->toTmpFile($this->getInternalPath($source));
}
}
public function fromTmpFile($tmpFile, $path) {
if ($this->is_writable($path)) {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
$result = $storage->fromTmpFile($tmpFile, $this->getInternalPath($source));
if ($result) {
$this->clearFolderSizeCache($path);
}
return $result;
}
} else {
return false;
}
}
public function getMimeType($path) {
if ($path == "" || $path == "/") {
return 'httpd/unix-directory';
}
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->getMimeType($this->getInternalPath($source));
}
}
public function hash($type, $path, $raw) {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->hash($type, $this->getInternalPath($source), $raw);
}
}
public function free_space($path) {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->free_space($this->getInternalPath($source));
}
}
public function search($query) {
return $this->searchInDir($query);
}
private function searchInDir($query, $path = "") {
$files = array();
if ($dh = $this->opendir($path)) {
while (($filename = readdir($dh)) !== false) {
if ($filename != "." && $filename != "..") {
if (strstr(strtolower($filename), strtolower($query))) {
$files[] = $path."/".$filename;
}
if ($this->is_dir($path."/".$filename)) {
$files = array_merge($files, $this->searchInDir($query, $path."/".$filename));
}
}
}
}
return $files;
}
public function getLocalFile($path) {
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->getLocalFile($this->getInternalPath($source));
}
}
public function touch($path, $mtime=null){
$source = $this->getSource($path);
if ($source) {
$storage = OC_Filesystem::getStorage($source);
return $storage->touch($this->getInternalPath($source),$time);
}
}
public static function setup() {
OC_Filesystem::mount('OC_Filestorage_Shared', array('datadir' => '/'.OCP\USER::getUser().'/files/Shared'), '/'.OCP\USER::getUser().'/files/Shared/');
}
/**
* check if a file or folder has been updated since $time
* @param int $time
* @return bool
*/
public function hasUpdated($path,$time){
//TODO
return $this->filemtime($path)>$time;
}
}
if (OCP\USER::isLoggedIn()) {
OC_Filestorage_Shared::setup();
} else {
OCP\Util::connectHook('OC_User', 'post_login', 'OC_Filestorage_Shared', 'setup');
}
?>