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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Class simulating empty directories.
*
* @package core_files
* @copyright 2008 Petr Skoda (http://skodak.org)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Represents the root directory of an empty file area in the tree navigated by {@link file_browser}.
*
* @package core_files
* @copyright 2008 Petr Skoda (http://skodak.org)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class virtual_root_file {
/** @var int context id */
protected $contextid;
/** @var string file component */
protected $component;
/** @var string file area */
protected $filearea;
/** @var int file itemid */
protected $itemid;
/**
* Constructor
*
* @param int $contextid context ID
* @param string $component component
* @param string $filearea file area
* @param int $itemid item ID
*/
public function __construct($contextid, $component, $filearea, $itemid) {
$this->contextid = $contextid;
$this->component = $component;
$this->filearea = $filearea;
$this->itemid = $itemid;
}
/**
* Whether or not this is a directory
*
* @return bool
*/
public function is_directory() {
return true;
}
/**
* Delete file
*
* @return success
*/
public function delete() {
return true;
}
/**
* adds this file path to a curl request (POST only)
*
* @param curl $curlrequest the curl request object
* @param string $key what key to use in the POST request
*/
public function add_to_curl_request(&$curlrequest, $key) {
return;
}
/**
* Returns file handle - read only mode, no writing allowed into pool files!
*
* @return resource file handle
*/
public function get_content_file_handle() {
return null;
}
/**
* Dumps file content to page
*
* @return resource file handle
*/
public function readfile() {
return;
}
/**
* Returns file content as string
*
* @return string content
*/
public function get_content() {
return '';
}
/**
* Copy content of file to given pathname
*
* @param string $pathname real path to new file
* @return bool success
*/
public function copy_content_to($pathname) {
return false;
}
/**
* List contents of archive
*
* @param file_packer $packer file packer instance
* @return array of file infos
*/
public function list_files(file_packer $packer) {
return null;
}
/**
* Extract file to given file path (real OS filesystem), existing files are overwrited
*
* @param file_packer $packer file packer instance
* @param string $pathname target directory
* @return mixed list of processed files; false if error
*/
public function extract_to_pathname(file_packer $packer, $pathname) {
return false;
}
/**
* Extract file to given file path (real OS filesystem), existing files are overwrited
*
* @param file_packer $packer file packer instance
* @param int $contextid context ID
* @param string $component component
* @param string $filearea file area
* @param int $itemid item ID
* @param string $pathbase path base
* @param int $userid user ID
* @return mixed list of processed files; false if error
*/
public function extract_to_storage(file_packer $packer, $contextid, $component, $filearea, $itemid, $pathbase, $userid = NULL) {
return false;
}
/**
* Add file/directory into archive
*
* @param file_archive $filearch file archive instance
* @param string $archivepath pathname in archive
* @return bool success
*/
public function archive_file(file_archive $filearch, $archivepath) {
return false;
}
/**
* Returns parent directory
*
* @return stored_file
*/
public function get_parent_directory() {
return null;
}
/**
* Returns context ID
*
* @return int context ID
*/
public function get_contextid() {
return $this->contextid;
}
/**
* Returns file component
*
* @return string component
*/
public function get_component() {
return $this->component;
}
/**
* Returns file area
*
* @return string filearea
*/
public function get_filearea() {
return $this->filearea;
}
/**
* Returns file itemid
*
* @return int itemid
*/
public function get_itemid() {
return $this->itemid;
}
/**
* Returns file path
*
* @return string filepath
*/
public function get_filepath() {
return '/';
}
/**
* Returns file name
*
* @return string filename
*/
public function get_filename() {
return '.';
}
/**
* Returns user ID
*
* @return int userid
*/
public function get_userid() {
return null;
}
/**
* Returns file size
*
* @return int filesize
*/
public function get_filesize() {
return 0;
}
/**
* Returns mimetype
*
* @return string mimetype
*/
public function get_mimetype() {
return null;
}
/**
* Returns time created
*
* @return int
*/
public function get_timecreated() {
return 0;
}
/**
* Returns time modified
*
* @return int
*/
public function get_timemodified() {
return 0;
}
/**
* Returns status
*
* @return int
*/
public function get_status() {
return 0;
}
/**
* Returns ID
*
* @return int
*/
public function get_id() {
return 0;
}
/**
* Returns sha1 hash code
*
* @return string
*/
public function get_contenthash() {
return sha1('');
}
/**
* Returns path name hash
*
* @return string
*/
public function get_pathnamehash() {
return sha1('/'.$this->get_contextid().'/'.$this->get_component().'/'.$this->get_filearea().'/'.$this->get_itemid().$this->get_filepath().$this->get_filename());
}
/**
* Returns license
*
* @return string
*/
public function get_license() {
return null;
}
/**
* Returns file's author
*
* @return string
*/
public function get_author() {
return null;
}
/**
* Returns file source
*
* @return string
*/
public function get_source() {
return null;
}
/**
* Returns file sort order
*
* @return int
*/
public function get_sortorder() {
return null;
}
}