/usr/share/php/sabre21/Sabre/DAV/FSExt/Node.php is in php-sabre-dav-2.1 2.1.10-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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namespace Sabre\DAV\FSExt;
use
Sabre\DAV,
Sabre\HTTP\URLUtil,
Sabre\DAV\PropPatch;
/**
* Base node-class
*
* The node class implements the method used by both the File and the Directory classes
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
abstract class Node extends DAV\FS\Node implements DAV\IProperties {
/**
* Updates properties on this node.
*
* This method received a PropPatch object, which contains all the
* information about the update.
*
* To update specific properties, call the 'handle' method on this object.
* Read the PropPatch documentation for more information.
*
* @param PropPatch $propPatch
* @return void
*/
function propPatch(PropPatch $propPatch) {
$propPatch->handleRemaining(function(array $properties) {
$resourceData = $this->getResourceData();
foreach($properties as $propertyName=>$propertyValue) {
// If it was null, we need to delete the property
if (is_null($propertyValue)) {
unset($resourceData['properties'][$propertyName]);
} else {
$resourceData['properties'][$propertyName] = $propertyValue;
}
}
$this->putResourceData($resourceData);
return true;
});
}
/**
* 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 $properties
* @return array
*/
function getProperties($properties) {
$resourceData = $this->getResourceData();
// if the array was empty, we need to return everything
if (!$properties) return $resourceData['properties'];
$props = [];
foreach($properties as $property) {
if (isset($resourceData['properties'][$property])) $props[$property] = $resourceData['properties'][$property];
}
return $props;
}
/**
* Returns the path to the resource file.
*
* @return string
*/
protected function getResourceInfoPath() {
list($parentDir) = URLUtil::splitPath($this->path);
return $parentDir . '/.sabredav';
}
/**
* Returns all the stored resource information.
*
* @return array
*/
protected function getResourceData() {
$path = $this->getResourceInfoPath();
if (!file_exists($path)) return ['properties' => []];
// opening up the file, and creating a shared lock
$handle = fopen($path,'r');
flock($handle,LOCK_SH);
$data = '';
// Reading data until the eof
while(!feof($handle)) {
$data.=fread($handle,8192);
}
// We're all good
flock($handle,LOCK_UN);
fclose($handle);
// Unserializing and checking if the resource file contains data for this file
$data = unserialize($data);
if (!isset($data[$this->getName()])) {
return ['properties' => []];
}
$data = $data[$this->getName()];
if (!isset($data['properties'])) $data['properties'] = [];
return $data;
}
/**
* Updates the resource information.
*
* @param array $newData
* @return void
*/
protected function putResourceData(array $newData) {
$path = $this->getResourceInfoPath();
// opening up the file, and creating a shared lock
$handle = fopen($path,'a+');
flock($handle,LOCK_EX);
$data = '';
rewind($handle);
// Reading data until the eof
while(!feof($handle)) {
$data.=fread($handle,8192);
}
// Unserializing and checking if the resource file contains data for this file
$data = unserialize($data);
$data[$this->getName()] = $newData;
ftruncate($handle,0);
rewind($handle);
fwrite($handle,serialize($data));
flock($handle,LOCK_UN);
fclose($handle);
}
/**
* Renames the node.
*
* @param string $name The new name
* @return void
*/
function setName($name) {
list($parentPath, ) = URLUtil::splitPath($this->path);
list(, $newName) = URLUtil::splitPath($name);
$newPath = $parentPath . '/' . $newName;
// We're deleting the existing resourcedata, and recreating it
// for the new path.
$resourceData = $this->getResourceData();
$this->deleteResourceData();
rename($this->path,$newPath);
$this->path = $newPath;
$this->putResourceData($resourceData);
}
/**
* Deletes the resource information.
* @return bool
*/
protected function deleteResourceData() {
// When we're deleting this node, we also need to delete any resource information
$path = $this->getResourceInfoPath();
if (!file_exists($path)) return true;
// opening up the file, and creating a shared lock
$handle = fopen($path,'a+');
flock($handle,LOCK_EX);
$data = '';
rewind($handle);
// Reading data until the eof
while(!feof($handle)) {
$data.=fread($handle,8192);
}
// Unserializing and checking if the resource file contains data for this file
$data = unserialize($data);
unset($data[$this->getName()]);
ftruncate($handle,0);
rewind($handle);
fwrite($handle,serialize($data));
flock($handle,LOCK_UN);
fclose($handle);
return true;
}
function delete() {
return $this->deleteResourceData();
}
}
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