534 lines
15 KiB
PHP
534 lines
15 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Michael Gapczynski
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* @copyright 2011 Michael Gapczynski GapczynskiM@gmail.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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require_once( 'lib_share.php' );
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/**
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* Convert target path to source path and pass the function call to the correct storage provider
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*/
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class OC_Filestorage_Shared extends OC_Filestorage {
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private $datadir;
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private $sourcePaths = array();
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public function __construct($arguments) {
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$this->datadir = $arguments['datadir'];
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}
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public function getInternalPath($path) {
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$mountPoint = OC_Filesystem::getMountPoint($path);
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$internalPath = substr($path, strlen($mountPoint));
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return $internalPath;
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}
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public function getSource($target) {
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$target = $this->datadir.$target;
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if (array_key_exists($target, $this->sourcePaths)) {
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return $this->sourcePaths[$target];
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} else {
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$source = OC_Share::getSource($target);
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$this->sourcePaths[$target] = $source;
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return $source;
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}
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}
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public function mkdir($path) {
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if ($path == "" || $path == "/") {
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return false;
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} else {
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$source = $this->getSource($path);
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if ($source) {
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if ($this->is_writeable($path)) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->mkdir($this->getInternalPath($source));
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}
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}
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}
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}
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public function rmdir($path) {
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// The folder will be removed from the database, but won't be deleted from the owner's filesystem
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OC_Share::unshareFromMySelf($this->datadir.$path);
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}
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public function opendir($path) {
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if ($path == "" || $path == "/") {
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global $FAKEDIRS;
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$path = $this->datadir.$path;
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$sharedItems = OC_Share::getItemsInFolder($path);
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if (empty($sharedItems)) {
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return false;
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}
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foreach ($sharedItems as $item) {
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// If item is in the root of the shared storage provider add it to the fakedirs
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if (dirname($item['target'])."/" == $path) {
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$files[] = basename($item['target']);
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}
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}
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$FAKEDIRS['shared'] = $files;
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return opendir('fakedir://shared');
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} else {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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$dh = $storage->opendir($this->getInternalPath($source));
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// Remove any duplicate or trailing '/'
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$path = rtrim($this->datadir.$path, "/");
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$path = preg_replace('{(/)\1+}', "/", $path);
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$modifiedItems = OC_Share::getItemsInFolder($source);
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if ($modifiedItems && $dh) {
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global $FAKEDIRS;
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$sources = array();
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$targets = array();
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foreach ($modifiedItems as $item) {
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// If the item is in the current directory and has a different name than the source, add it to the arrays
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if (dirname($item['target']) == $path && basename($item['source']) != basename($item['target'])) {
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$sources[] = basename($item['source']);
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$targets[] = basename($item['target']);
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// If the item was unshared from self, add it it to the arrays
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} elseif ($item['target'] == "/") {
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$sources[] = basename($item['source']);
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$targets[] = "";
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}
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}
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// Don't waste time if there aren't any modified items in the current directory
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if (empty($sources)) {
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return $dh;
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} else {
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while (($filename = readdir($dh)) !== false) {
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if ($filename != "." && $filename != "..") {
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// If the file isn't in the sources array it isn't modified and can be added as is
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if (!in_array($filename, $sources)) {
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$files[] = $filename;
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// The file has a different name than the source and is added to the fakedirs
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} else {
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$target = $targets[array_search($filename, $sources)];
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// Don't add the file if it was unshared from self by the user
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if ($target != "") {
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$files[] = $target;
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}
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}
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}
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}
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$FAKEDIRS['shared'] = $files;
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return opendir('fakedir://shared');
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}
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} else {
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return $dh;
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}
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}
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}
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}
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public function is_dir($path) {
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if ($path == "" || $path == "/") {
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return true;
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} else {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->is_dir($this->getInternalPath($source));
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}
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}
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}
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public function is_file($path) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->is_file($this->getInternalPath($source));
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}
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}
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// TODO fill in other components of array
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public function stat($path) {
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if ($path == "" || $path == "/") {
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$stat["dev"] = "";
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$stat["ino"] = "";
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$stat["mode"] = "";
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$stat["nlink"] = "";
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$stat["uid"] = "";
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$stat["gid"] = "";
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$stat["rdev"] = "";
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$stat["size"] = $this->filesize($path);
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$stat["atime"] = $this->fileatime($path);
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$stat["mtime"] = $this->filemtime($path);
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$stat["ctime"] = $this->filectime($path);
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$stat["blksize"] = "";
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$stat["blocks"] = "";
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return $stat;
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} else {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->stat($this->getInternalPath($source));
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}
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}
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}
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public function filetype($path) {
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if ($path == "" || $path == "/") {
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return "dir";
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} else {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->filetype($this->getInternalPath($source));
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}
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}
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}
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public function filesize($path) {
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if ($path == "" || $path == "/" || $this->is_dir($path)) {
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return $this->getFolderSize($path);
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} else {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->filesize($this->getInternalPath($source));
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}
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}
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}
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public function getFolderSize($path) {
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if ($path == "" || $path == "/") {
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$dbpath = OC_User::getUser()."/files/Share/";
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} else {
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$source = $this->getSource($path);
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$dbpath = $this->getInternalPath($source);
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}
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$query = OC_DB::prepare("SELECT size FROM *PREFIX*foldersize WHERE path=?");
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$size = $query->execute(array($dbpath))->fetchAll();
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if (count($size) > 0) {
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return $size[0]['size'];
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} else {
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return $this->calculateFolderSize($path);
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}
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}
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public function calculateFolderSize($path) {
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if ($this->is_file($path)) {
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$path = dirname($path);
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}
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$path = str_replace("//", "/", $path);
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if ($this->is_dir($path) && substr($path, -1) != "/") {
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$path .= "/";
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}
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$size = 0;
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if ($dh = $this->opendir($path)) {
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while (($filename = readdir($dh)) !== false) {
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if ($filename != "." && $filename != "..") {
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$subFile = $path.$filename;
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if ($this->is_file($subFile)) {
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$size += $this->filesize($subFile);
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} else {
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$size += $this->getFolderSize($subFile);
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}
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}
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}
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if ($size > 0) {
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if ($path == "" || $path == "/") {
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$dbpath = OC_User::getUser()."/files/Share/";
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} else {
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$source = $this->getSource($path);
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$dbpath = $this->getInternalPath($source);
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}
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$query = OC_DB::prepare("INSERT INTO *PREFIX*foldersize VALUES(?,?)");
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$result = $query->execute(array($dbpath, $size));
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}
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}
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return $size;
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}
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public function is_readable($path) {
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return true;
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}
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public function is_writeable($path) {
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if ($path == "" || $path == "/" || OC_Share::getPermissions($this->datadir.$path) & OC_Share::WRITE) {
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return true;
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} else {
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return false;
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}
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}
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public function file_exists($path) {
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if ($path == "" || $path == "/") {
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return true;
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} else {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->file_exists($this->getInternalPath($source));
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}
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}
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}
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public function readfile($path) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->readfile($this->getInternalPath($source));
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}
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}
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public function filectime($path) {
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if ($path == "" || $path == "/") {
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$ctime = 0;
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$dir = $this->opendir($path);
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while (($filename = readdir($dir)) != false) {
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$tempctime = $this->filectime($filename);
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if ($tempctime < $ctime) {
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$ctime = $tempctime;
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}
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}
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return $ctime;
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} else {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->filectime($this->getInternalPath($source));
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}
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}
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}
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public function filemtime($path) {
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if ($path == "" || $path == "/") {
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$mtime = 0;
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$dir = $this->opendir($path);
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while (($filename = readdir($dir)) != false) {
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$tempmtime = $this->filemtime($filename);
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if ($tempmtime > $mtime) {
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$mtime = $tempmtime;
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}
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}
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return $mtime;
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} else {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->filemtime($this->getInternalPath($source));
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}
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}
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}
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public function fileatime($path) {
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if ($path == "" || $path == "/") {
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$atime = 0;
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$dir = $this->opendir($path);
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while (($filename = readdir($dir)) != false) {
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$tempatime = $this->fileatime($filename);
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if ($tempatime > $atime) {
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$atime = $tempatime;
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}
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}
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return $atime;
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} else {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->fileatime($this->getInternalPath($source));
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}
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}
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}
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public function file_get_contents($path) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->file_get_contents($this->getInternalPath($source));
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}
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}
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public function file_put_contents($path, $data) {
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if ($this->is_writeable($path)) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->file_put_contents($this->getInternalPath($source), $data);
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}
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}
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}
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public function unlink($path) {
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$target = $this->datadir.$path;
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// If the user has delete permission for the item, the source item will be deleted
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if (OC_Share::getPermissions($target) & OC_Share::DELETE) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->unlink($this->getInternalPath($source));
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}
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// The item will be removed from the database, but won't be touched on the owner's filesystem
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} else {
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// Check if the item is inside a shared folder
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if (OC_Share::getParentFolders($target)) {
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// If entry for item already exists
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if (OC_Share::getItem($target)) {
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OC_Share::setTarget($target, "/");
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} else {
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OC_Share::pullOutOfFolder($target, "/");
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// If this is a folder being deleted, call setTarget in case there are any database entries inside the folder
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if (self::is_dir($path)) {
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OC_Share::setTarget($target, "/");
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}
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}
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// Delete the database entry
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} else {
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OC_Share::unshareFromMySelf($target);
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}
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}
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return true;
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}
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public function rename($path1, $path2) {
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// If the user has write permission for the item, the source item will be renamed
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if ($this->is_writeable($path1)) {
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$source = $this->getSource($path1);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->rename($path1, $path2);
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}
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// The item will be renamed in the database, but won't be touched on the owner's filesystem
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} else {
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$oldTarget = $this->datadir.$path1;
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$newTarget = $this->datadir.$path2;
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if (OC_Share::getItem($oldTarget)) {
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OC_Share::setTarget($oldTarget, $newTarget);
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// There is no entry in the database for the item, it must be inside a shared folder
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} else {
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OC_Share::pullOutOfFolder($oldTarget, $newTarget);
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// If this is a folder being renamed, call setTarget in case there are any database entries inside the folder
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if (self::is_dir($path1)) {
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OC_Share::setTarget($oldTarget, $newTarget);
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}
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}
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}
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return true;
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}
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public function copy($path1, $path2) {
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if ($path2 == "" || $path2 == "/") {
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// TODO Construct new shared item or should this not be allowed?
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} else {
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if ($this->is_writeable($path2)) {
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$tmpFile = $this->toTmpFile($path1);
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return $this->fromTmpFile($tmpFile, $path2);
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} else {
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return false;
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}
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}
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}
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public function fopen($path, $mode) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->fopen($this->getInternalPath($source), $mode);
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}
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}
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public function toTmpFile($path) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->toTmpFile($this->getInternalPath($source));
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}
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}
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public function fromTmpFile($tmpFile, $path) {
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if ($this->is_writeable($path)) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->fromTmpFile($tmpFile, $this->getInternalPath($source));
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}
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} else {
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return false;
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}
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}
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public function fromUploadedFile($tmpPath, $path) {
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$source = $this->getSource($tmpPath);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->fromUploadedFile($this->getInternalPath($source), $path);
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}
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}
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public function getMimeType($path) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->getMimeType($this->getInternalPath($source));
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}
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}
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public function delTree($path) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->delTree($this->getInternalPath($source));
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}
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}
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public function find($path) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->find($this->getInternalPath($source));
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}
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}
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public function getTree($path) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->getTree($this->getInternalPath($source));
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}
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}
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public function hash($type, $path, $raw) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->hash($type, $this->getInternalPath($source), $raw);
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}
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}
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public function free_space($path) {
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$source = $this->getSource($path);
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if ($source) {
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$storage = OC_Filesystem::getStorage($source);
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return $storage->free_space($this->getInternalPath($source));
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}
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}
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// TODO query all shared files?
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public function search($query) {
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}
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}
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?>
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