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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/>.
- *
- */
-
- abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IProperties {
- const GETETAG_PROPERTYNAME = '{DAV:}getetag';
- const LASTMODIFIED_PROPERTYNAME = '{DAV:}lastmodified';
-
- /**
- * Allow configuring the method used to generate Etags
- *
- * @var array(class_name, function_name)
- */
- public static $ETagFunction = null;
-
- /**
- * is kept public to allow overwrite for unit testing
- *
- * @var \OC\Files\View
- */
- public $fileView;
-
- /**
- * The path to the current node
- *
- * @var string
- */
- protected $path;
-
- /**
- * node fileinfo cache
- * @var array
- */
- protected $fileinfo_cache;
- /**
- * node properties cache
- * @var array
- */
- protected $property_cache = null;
-
- /**
- * @brief Sets up the node, expects a full path name
- * @param string $path
- * @return void
- */
- public function __construct($path) {
- $this->path = $path;
- }
-
-
-
- /**
- * @brief Returns the name of the node
- * @return string
- */
- public function getName() {
-
- list(, $name) = Sabre_DAV_URLUtil::splitPath($this->path);
- return $name;
-
- }
-
- /**
- * @brief Renames the node
- * @param string $name The new name
- * @return void
- */
- public function setName($name) {
- $fs = $this->getFS();
-
- // rename is only allowed if the update privilege is granted
- if (!$fs->isUpdatable($this->path)) {
- throw new \Sabre_DAV_Exception_Forbidden();
- }
-
- list($parentPath, ) = Sabre_DAV_URLUtil::splitPath($this->path);
- list(, $newName) = Sabre_DAV_URLUtil::splitPath($name);
-
- if (!\OCP\Util::isValidFileName($newName)) {
- throw new \Sabre_DAV_Exception_BadRequest();
- }
-
- $newPath = $parentPath . '/' . $newName;
- $oldPath = $this->path;
-
- $fs->rename($this->path, $newPath);
-
- $this->path = $newPath;
-
- $query = OC_DB::prepare( 'UPDATE `*PREFIX*properties` SET `propertypath` = ?'
- .' WHERE `userid` = ? AND `propertypath` = ?' );
- $query->execute( array( $newPath, OC_User::getUser(), $oldPath ));
-
- }
-
- public function setFileinfoCache($fileinfo_cache)
- {
- $this->fileinfo_cache = $fileinfo_cache;
- }
-
- /**
- * @brief Ensure that the fileinfo cache is filled
- * @note Uses OC_FileCache or a direct stat
- */
- protected function getFileinfoCache() {
- if (!isset($this->fileinfo_cache)) {
- if ($fileinfo_cache = \OC\Files\Filesystem::getFileInfo($this->path)) {
- } else {
- $fileinfo_cache = \OC\Files\Filesystem::stat($this->path);
- }
-
- $this->fileinfo_cache = $fileinfo_cache;
- }
- }
-
- public function setPropertyCache($property_cache)
- {
- $this->property_cache = $property_cache;
- }
-
- /**
- * @brief Returns the last modification time, as a unix timestamp
- * @return int timestamp as integer
- */
- public function getLastModified() {
- $this->getFileinfoCache();
- $timestamp = $this->fileinfo_cache['mtime'];
- if (!empty($timestamp)) {
- return (int)$timestamp;
- }
- return $timestamp;
- }
-
- /**
- * sets the last modification time of the file (mtime) to the value given
- * in the second parameter or to now if the second param is empty.
- * Even if the modification time is set to a custom value the access time is set to now.
- */
- public function touch($mtime) {
- \OC\Files\Filesystem::touch($this->path, $mtime);
- }
-
- /**
- * @brief Updates properties on this node,
- * @see Sabre_DAV_IProperties::updateProperties
- * @return boolean
- */
- public function updateProperties($properties) {
- $existing = $this->getProperties(array());
- foreach($properties as $propertyName => $propertyValue) {
- // If it was null, we need to delete the property
- if (is_null($propertyValue)) {
- if(array_key_exists( $propertyName, $existing )) {
- $query = OC_DB::prepare( 'DELETE FROM `*PREFIX*properties`'
- .' WHERE `userid` = ? AND `propertypath` = ? AND `propertyname` = ?' );
- $query->execute( array( OC_User::getUser(), $this->path, $propertyName ));
- }
- }
- else {
- if( strcmp( $propertyName, self::GETETAG_PROPERTYNAME) === 0 ) {
- \OC\Files\Filesystem::putFileInfo($this->path, array('etag'=> $propertyValue));
- } elseif( strcmp( $propertyName, self::LASTMODIFIED_PROPERTYNAME) === 0 ) {
- $this->touch($propertyValue);
- } else {
- if(!array_key_exists( $propertyName, $existing )) {
- $query = OC_DB::prepare( 'INSERT INTO `*PREFIX*properties`'
- .' (`userid`,`propertypath`,`propertyname`,`propertyvalue`) VALUES(?,?,?,?)' );
- $query->execute( array( OC_User::getUser(), $this->path, $propertyName,$propertyValue ));
- } else {
- $query = OC_DB::prepare( 'UPDATE `*PREFIX*properties` SET `propertyvalue` = ?'
- .' WHERE `userid` = ? AND `propertypath` = ? AND `propertyname` = ?' );
- $query->execute( array( $propertyValue,OC_User::getUser(), $this->path, $propertyName ));
- }
- }
- }
-
- }
- $this->setPropertyCache(null);
- return true;
- }
-
- /**
- * removes all properties for this node and user
- */
- public function removeProperties() {
- $query = OC_DB::prepare( 'DELETE FROM `*PREFIX*properties`'
- .' WHERE `userid` = ? AND `propertypath` = ?' );
- $query->execute( array( OC_User::getUser(), $this->path));
-
- $this->setPropertyCache(null);
- }
-
- /**
- * @brief Returns a list of properties for this nodes.;
- * @param array $properties
- * @return array
- * @note The properties list is a list of propertynames the client
- * requested, encoded as xmlnamespace#tagName, for example:
- * http://www.example.org/namespace#author If the array is empty, all
- * properties should be returned
- */
- public function getProperties($properties) {
-
- if (is_null($this->property_cache)) {
- $sql = 'SELECT * FROM `*PREFIX*properties` WHERE `userid` = ? AND `propertypath` = ?';
- $result = OC_DB::executeAudited( $sql, array( OC_User::getUser(), $this->path ) );
-
- $this->property_cache = array();
- while( $row = $result->fetchRow()) {
- $this->property_cache[$row['propertyname']] = $row['propertyvalue'];
- }
-
- // Don't call the static getETagPropertyForPath, its result is not cached
- $this->getFileinfoCache();
- if ($this->fileinfo_cache['etag']) {
- $this->property_cache[self::GETETAG_PROPERTYNAME] = '"'.$this->fileinfo_cache['etag'].'"';
- } else {
- $this->property_cache[self::GETETAG_PROPERTYNAME] = null;
- }
- }
-
- // if the array was empty, we need to return everything
- if(count($properties) == 0) {
- return $this->property_cache;
- }
-
- $props = array();
- foreach($properties as $property) {
- if (isset($this->property_cache[$property])) {
- $props[$property] = $this->property_cache[$property];
- }
- }
-
- return $props;
- }
-
- /**
- * Returns the ETag surrounded by double-quotes for this path.
- * @param string $path Path of the file
- * @return string|null Returns null if the ETag can not effectively be determined
- */
- protected function getETagPropertyForPath($path) {
- $data = $this->getFS()->getFileInfo($path);
- if (isset($data['etag'])) {
- return '"'.$data['etag'].'"';
- }
- return null;
- }
-
- protected function getFS() {
- if (is_null($this->fileView)) {
- $this->fileView = \OC\Files\Filesystem::getView();
- }
- return $this->fileView;
- }
-
- /**
- * @return string|null
- */
- public function getFileId()
- {
- $this->getFileinfoCache();
-
- if (isset($this->fileinfo_cache['fileid'])) {
- $instanceId = OC_Util::getInstanceId();
- $id = sprintf('%08d', $this->fileinfo_cache['fileid']);
- return $id . $instanceId;
- }
-
- return null;
- }
- }
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