芝麻web文件管理V1.00
编辑当前文件:/home2/sdektunc/www/cepali/lib/filebrowser/file_info_context_system.php
. /** * Utility class for browsing of system files. * * @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(); require_once($CFG->libdir.'/filebrowser/file_info_context_coursecat.php'); /** * Represents the system context 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 file_info_context_system extends file_info_context_coursecat { /** * Constructor * * @param file_browser $browser file_browser instance * @param stdClass $context context object */ public function __construct($browser, $context) { parent::__construct($browser, $context, (object)['id' => 0, 'parent' => 0, 'visible' => 1]); } /** * Return information about this specific part of context level * * @param string $component component * @param string $filearea file area * @param int $itemid item ID * @param string $filepath file path * @param string $filename file name * @return file_info|null file_info instance or null if not found or access not allowed */ public function get_file_info($component, $filearea, $itemid, $filepath, $filename) { if (empty($component)) { return $this; } $methodname = "get_area_{$component}_{$filearea}"; if (method_exists($this, $methodname)) { return $this->$methodname($itemid, $filepath, $filename); } return null; } /** * Gets a stored file for the backup course filearea directory. * * @param int $itemid item ID * @param string $filepath file path * @param string $filename file name * @return file_info|null file_info instance or null if not found or access not allowed */ protected function get_area_backup_course($itemid, $filepath, $filename) { global $CFG; if (!isloggedin()) { return null; } if (!has_any_capability(array('moodle/backup:backupcourse', 'moodle/restore:restorecourse'), $this->context)) { return null; } if (is_null($itemid)) { return $this; } $fs = get_file_storage(); $filepath = is_null($filepath) ? '/' : $filepath; $filename = is_null($filename) ? '.' : $filename; if (!$storedfile = $fs->get_file($this->context->id, 'backup', 'course', 0, $filepath, $filename)) { if ($filepath === '/' && $filename === '.') { $storedfile = new virtual_root_file($this->context->id, 'backup', 'course', 0); } else { // Not found. return null; } } $downloadable = has_capability('moodle/backup:downloadfile', $this->context); $uploadable = has_capability('moodle/restore:uploadfile', $this->context); $urlbase = $CFG->wwwroot . '/pluginfile.php'; return new file_info_stored($this->browser, $this->context, $storedfile, $urlbase, get_string('coursebackup', 'repository'), false, $downloadable, $uploadable, false); } /** * Returns localised visible name. * * @return string */ public function get_visible_name() { return get_string('arearoot', 'repository'); } /** * Whether or not new files or directories can be added * * @return bool */ public function is_writable() { return false; } /** * Whether or not this is a directory * * @return bool */ public function is_directory() { return true; } /** * Returns parent file_info instance * * @return file_info|null file_info instance or null for root */ public function get_parent() { return null; } }