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<?php
/**
* ownCloud
*
* @author Jakob Sack
* @copyright 2011 Jakob Sack kde@jakobsack.de
*
* 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/>.
*
*/
class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node implements Sabre_DAV_ICollection, Sabre_DAV_IQuota {
/**
* Creates a new file in the directory
*
* Data will either be supplied as a stream resource, or in certain cases
* as a string. Keep in mind that you may have to support either.
*
* After succesful creation of the file, you may choose to return the ETag
* of the new file here.
*
* The returned ETag must be surrounded by double-quotes (The quotes should
* be part of the actual string).
*
* If you cannot accurately determine the ETag, you should not return it.
* If you don't store the file exactly as-is (you're transforming it
* somehow) you should also not return an ETag.
*
* This means that if a subsequent GET to this new file does not exactly
* return the same contents of what was submitted here, you are strongly
* recommended to omit the ETag.
*
* @param string $name Name of the file
* @param resource|string $data Initial payload
* @throws Sabre_DAV_Exception_Forbidden
* @return null|string
*/
public function createFile($name, $data = null) {
if ($name === 'Shared' && empty($this->path)) {
throw new \Sabre_DAV_Exception_Forbidden();
}
// for chunked upload also updating a existing file is a "createFile"
// because we create all the chunks before reasamble them to the existing file.
if (isset($_SERVER['HTTP_OC_CHUNKED'])) {
// exit if we can't create a new file and we don't updatable existing file
$info = OC_FileChunking::decodeName($name);
if (!\OC\Files\Filesystem::isCreatable($this->path) &&
!\OC\Files\Filesystem::isUpdatable($this->path . '/' . $info['name'])) {
throw new \Sabre_DAV_Exception_Forbidden();
}
} else {
// For non-chunked upload it is enough to check if we can create a new file
if (!\OC\Files\Filesystem::isCreatable($this->path)) {
throw new \Sabre_DAV_Exception_Forbidden();
}
}
$path = $this->path . '/' . $name;
$node = new OC_Connector_Sabre_File($path);
return $node->put($data);
}
/**
* Creates a new subdirectory
*
* @param string $name
* @throws Sabre_DAV_Exception_Forbidden
* @return void
*/
public function createDirectory($name) {
if ($name === 'Shared' && empty($this->path)) {
throw new \Sabre_DAV_Exception_Forbidden();
}
if (!\OC\Files\Filesystem::isCreatable($this->path)) {
throw new \Sabre_DAV_Exception_Forbidden();
}
$newPath = $this->path . '/' . $name;
if(!\OC\Files\Filesystem::mkdir($newPath)) {
throw new Sabre_DAV_Exception_Forbidden('Could not create directory '.$newPath);
}
}
/**
* Returns a specific child node, referenced by its name
*
* @param string $name
* @throws Sabre_DAV_Exception_FileNotFound
* @return Sabre_DAV_INode
*/
public function getChild($name, $info = null) {
$path = $this->path . '/' . $name;
if (is_null($info)) {
$info = \OC\Files\Filesystem::getFileInfo($path);
}
if (!$info) {
throw new Sabre_DAV_Exception_NotFound('File with name ' . $path . ' could not be located');
}
if ($info['mimetype'] == 'httpd/unix-directory') {
$node = new OC_Connector_Sabre_Directory($path);
} else {
$node = new OC_Connector_Sabre_File($path);
}
$node->setFileinfoCache($info);
return $node;
}
/**
* Returns an array with all the child nodes
*
* @return Sabre_DAV_INode[]
*/
public function getChildren() {
$folder_content = \OC\Files\Filesystem::getDirectoryContent($this->path);
$paths = array();
foreach($folder_content as $info) {
$paths[] = $this->path.'/'.$info['name'];
$properties[$this->path.'/'.$info['name']][self::GETETAG_PROPERTYNAME] = '"' . $info['etag'] . '"';
}
if(count($paths)>0) {
//
// the number of arguments within IN conditions are limited in most databases
// we chunk $paths into arrays of 200 items each to meet this criteria
//
$chunks = array_chunk($paths, 200, false);
foreach ($chunks as $pack) {
$placeholders = join(',', array_fill(0, count($pack), '?'));
$query = OC_DB::prepare( 'SELECT * FROM `*PREFIX*properties`'
.' WHERE `userid` = ?' . ' AND `propertypath` IN ('.$placeholders.')' );
array_unshift($pack, OC_User::getUser()); // prepend userid
$result = $query->execute( $pack );
while($row = $result->fetchRow()) {
$propertypath = $row['propertypath'];
$propertyname = $row['propertyname'];
$propertyvalue = $row['propertyvalue'];
if($propertyname !== self::GETETAG_PROPERTYNAME) {
$properties[$propertypath][$propertyname] = $propertyvalue;
}
}
}
}
$nodes = array();
foreach($folder_content as $info) {
$node = $this->getChild($info['name'], $info);
$node->setPropertyCache($properties[$this->path.'/'.$info['name']]);
$nodes[] = $node;
}
return $nodes;
}
/**
* Checks if a child exists.
*
* @param string $name
* @return bool
*/
public function childExists($name) {
$path = $this->path . '/' . $name;
return \OC\Files\Filesystem::file_exists($path);
}
/**
* Deletes all files in this directory, and then itself
*
* @return void
* @throws Sabre_DAV_Exception_Forbidden
*/
public function delete() {
if ($this->path === 'Shared') {
throw new \Sabre_DAV_Exception_Forbidden();
}
if (!\OC\Files\Filesystem::isDeletable($this->path)) {
throw new \Sabre_DAV_Exception_Forbidden();
}
\OC\Files\Filesystem::rmdir($this->path);
}
/**
* Returns available diskspace information
*
* @return array
*/
public function getQuotaInfo() {
$storageInfo = OC_Helper::getStorageInfo($this->path);
return array(
$storageInfo['used'],
$storageInfo['free']
);
}
/**
* Returns a list of properties for this nodes.;
*
* The properties list is a list of propertynames the client requested,
* encoded as xmlnamespace#tagName, for example:
* http://www.example.org/namespace#author
* If the array is empty, all properties should be returned
*
* @param array $properties
* @return array
*/
public function getProperties($properties) {
$props = parent::getProperties($properties);
if (in_array(self::GETETAG_PROPERTYNAME, $properties) && !isset($props[self::GETETAG_PROPERTYNAME])) {
$props[self::GETETAG_PROPERTYNAME] = $this->getETagPropertyForPath($this->path);
}
return $props;
}
}
|
