284 lines
8.3 KiB
PHP
284 lines
8.3 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Jakob Sack
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* @copyright 2011 Jakob Sack kde@jakobsack.de
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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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class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node
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implements \Sabre\DAV\ICollection, \Sabre\DAV\IQuota {
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/**
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* Cached directory content
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*
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* @var \OCP\Files\FileInfo[]
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*/
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private $dirContent;
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/**
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* Cached quota info
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*
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* @var array
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*/
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private $quotaInfo;
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/**
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* Creates a new file in the directory
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*
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* Data will either be supplied as a stream resource, or in certain cases
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* as a string. Keep in mind that you may have to support either.
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*
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* After successful creation of the file, you may choose to return the ETag
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* of the new file here.
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*
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* The returned ETag must be surrounded by double-quotes (The quotes should
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* be part of the actual string).
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*
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* If you cannot accurately determine the ETag, you should not return it.
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* If you don't store the file exactly as-is (you're transforming it
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* somehow) you should also not return an ETag.
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*
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* This means that if a subsequent GET to this new file does not exactly
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* return the same contents of what was submitted here, you are strongly
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* recommended to omit the ETag.
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*
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* @param string $name Name of the file
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* @param resource|string $data Initial payload
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* @throws \Sabre\DAV\Exception\Forbidden
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* @return null|string
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*/
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public function createFile($name, $data = null) {
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try {
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// for chunked upload also updating a existing file is a "createFile"
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// because we create all the chunks before re-assemble them to the existing file.
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if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
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// exit if we can't create a new file and we don't updatable existing file
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$info = OC_FileChunking::decodeName($name);
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if (!$this->fileView->isCreatable($this->path) &&
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!$this->fileView->isUpdatable($this->path . '/' . $info['name'])
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) {
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throw new \Sabre\DAV\Exception\Forbidden();
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}
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} else {
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// For non-chunked upload it is enough to check if we can create a new file
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if (!$this->fileView->isCreatable($this->path)) {
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throw new \Sabre\DAV\Exception\Forbidden();
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}
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}
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$path = $this->fileView->getAbsolutePath($this->path) . '/' . $name;
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// using a dummy FileInfo is acceptable here since it will be refreshed after the put is complete
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$info = new \OC\Files\FileInfo($path, null, null, array(), null);
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$node = new OC_Connector_Sabre_File($this->fileView, $info);
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return $node->put($data);
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} catch (\OCP\Files\StorageNotAvailableException $e) {
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throw new \Sabre\DAV\Exception\ServiceUnavailable($e->getMessage());
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}
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}
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/**
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* Creates a new subdirectory
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*
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* @param string $name
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* @throws \Sabre\DAV\Exception\Forbidden
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* @return void
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*/
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public function createDirectory($name) {
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try {
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if (!$this->info->isCreatable()) {
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throw new \Sabre\DAV\Exception\Forbidden();
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}
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$newPath = $this->path . '/' . $name;
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if (!$this->fileView->mkdir($newPath)) {
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throw new \Sabre\DAV\Exception\Forbidden('Could not create directory ' . $newPath);
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}
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} catch (\OCP\Files\StorageNotAvailableException $e) {
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throw new \Sabre\DAV\Exception\ServiceUnavailable($e->getMessage());
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}
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}
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/**
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* Returns a specific child node, referenced by its name
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*
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* @param string $name
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* @param \OCP\Files\FileInfo $info
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* @throws \Sabre\DAV\Exception\FileNotFound
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* @return \Sabre\DAV\INode
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*/
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public function getChild($name, $info = null) {
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$path = $this->path . '/' . $name;
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if (is_null($info)) {
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try {
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$info = $this->fileView->getFileInfo($path);
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} catch (\OCP\Files\StorageNotAvailableException $e) {
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throw new \Sabre\DAV\Exception\ServiceUnavailable($e->getMessage());
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}
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}
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if (!$info) {
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throw new \Sabre\DAV\Exception\NotFound('File with name ' . $path . ' could not be located');
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}
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if ($info['mimetype'] == 'httpd/unix-directory') {
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$node = new OC_Connector_Sabre_Directory($this->fileView, $info);
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} else {
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$node = new OC_Connector_Sabre_File($this->fileView, $info);
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}
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return $node;
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}
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/**
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* Returns an array with all the child nodes
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*
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* @return \Sabre\DAV\INode[]
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*/
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public function getChildren() {
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if (!is_null($this->dirContent)) {
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return $this->dirContent;
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}
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$folderContent = $this->fileView->getDirectoryContent($this->path);
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$properties = array();
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$paths = array();
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foreach ($folderContent as $info) {
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$name = $info->getName();
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$paths[] = $this->path . '/' . $name;
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$properties[$this->path . '/' . $name][self::GETETAG_PROPERTYNAME] = '"' . $info->getEtag() . '"';
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}
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// TODO: move this to a beforeGetPropertiesForPath event to pre-cache properties
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// TODO: only fetch the requested properties
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if (count($paths) > 0) {
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//
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// the number of arguments within IN conditions are limited in most databases
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// we chunk $paths into arrays of 200 items each to meet this criteria
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//
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$chunks = array_chunk($paths, 200, false);
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foreach ($chunks as $pack) {
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$placeholders = join(',', array_fill(0, count($pack), '?'));
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$query = OC_DB::prepare('SELECT * FROM `*PREFIX*properties`'
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. ' WHERE `userid` = ?' . ' AND `propertypath` IN (' . $placeholders . ')');
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array_unshift($pack, OC_User::getUser()); // prepend userid
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$result = $query->execute($pack);
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while ($row = $result->fetchRow()) {
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$propertypath = $row['propertypath'];
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$propertyname = $row['propertyname'];
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$propertyvalue = $row['propertyvalue'];
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if ($propertyname !== self::GETETAG_PROPERTYNAME) {
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$properties[$propertypath][$propertyname] = $propertyvalue;
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}
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}
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}
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}
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$nodes = array();
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foreach ($folderContent as $info) {
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$node = $this->getChild($info->getName(), $info);
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$node->setPropertyCache($properties[$this->path . '/' . $info->getName()]);
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$nodes[] = $node;
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}
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$this->dirContent = $nodes;
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return $this->dirContent;
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}
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/**
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* Checks if a child exists.
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*
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* @param string $name
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* @return bool
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*/
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public function childExists($name) {
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$path = $this->path . '/' . $name;
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return $this->fileView->file_exists($path);
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}
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/**
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* Deletes all files in this directory, and then itself
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*
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* @return void
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* @throws \Sabre\DAV\Exception\Forbidden
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*/
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public function delete() {
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if (!$this->info->isDeletable()) {
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throw new \Sabre\DAV\Exception\Forbidden();
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}
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if (!$this->fileView->rmdir($this->path)) {
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// assume it wasn't possible to remove due to permission issue
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throw new \Sabre\DAV\Exception\Forbidden();
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}
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}
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/**
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* Returns available diskspace information
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*
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* @return array
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*/
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public function getQuotaInfo() {
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if ($this->quotaInfo) {
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return $this->quotaInfo;
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}
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try {
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$path = \OC\Files\Filesystem::getView()->getRelativePath($this->info->getPath());
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$storageInfo = OC_Helper::getStorageInfo($path);
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$this->quotaInfo = array(
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$storageInfo['used'],
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$storageInfo['free']
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);
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return $this->quotaInfo;
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} catch (\OCP\Files\StorageNotAvailableException $e) {
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return array(0, 0);
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}
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}
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/**
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* Returns a list of properties for this nodes.;
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*
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* The properties list is a list of propertynames the client requested,
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* encoded as xmlnamespace#tagName, for example:
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* http://www.example.org/namespace#author
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* If the array is empty, all properties should be returned
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*
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* @param array $properties
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* @return array
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*/
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public function getProperties($properties) {
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$props = parent::getProperties($properties);
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if (in_array(self::GETETAG_PROPERTYNAME, $properties) && !isset($props[self::GETETAG_PROPERTYNAME])) {
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$props[self::GETETAG_PROPERTYNAME] = $this->info->getEtag();
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}
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return $props;
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}
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/**
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* Returns the size of the node, in bytes
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*
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* @return int
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*/
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public function getSize() {
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return $this->info->getSize();
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}
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}
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