Your IP : 192.168.165.1
<?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/>.
/**
* Utility class for browsing of user 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();
/**
* Represents a user 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_user extends file_info {
/** @var stdClass User object */
protected $user;
/**
* Constructor
*
* @param file_browser $browser
* @param stdClass $context
* @param stdClass $user
*/
public function __construct($browser, $context, $user) {
parent::__construct($browser, $context);
$this->user = $user;
}
/**
* Return information about this specific context level
*
* @param string $component componet
* @param string $filearea file area
* @param int $itemid item ID
* @param string $filepath file path
* @param string $filename file name
* @return file_info|null
*/
public function get_file_info($component, $filearea, $itemid, $filepath, $filename) {
global $USER;
if (!isloggedin() or isguestuser()) {
return null;
}
if (empty($component)) {
// access control: list areas only for myself
if ($this->user->id != $USER->id) {
// no list of areas for other users
return null;
}
return $this;
}
$methodname = "get_area_{$component}_{$filearea}";
if (method_exists($this, $methodname)) {
return $this->$methodname($itemid, $filepath, $filename);
}
return null;
}
/**
* Get a file from user private area
*
* @todo MDL-31070 this method should respect $CFG->userquota
* @param int $itemid item ID
* @param string $filepath file path
* @param string $filename file name
* @return file_info|null
*/
protected function get_area_user_private($itemid, $filepath, $filename) {
global $USER, $CFG;
// access control: only my files, nobody else
if ($this->user->id != $USER->id) {
return null;
}
if (is_null($itemid)) {
// go to parent, we do not use itemids here in private area
return $this;
}
$fs = get_file_storage();
$filepath = is_null($filepath) ? '/' : $filepath;
$filename = is_null($filename) ? '.' : $filename;
if (!$storedfile = $fs->get_file($this->context->id, 'user', 'private', 0, $filepath, $filename)) {
if ($filepath === '/' and $filename === '.') {
// root dir does not exist yet
$storedfile = new virtual_root_file($this->context->id, 'user', 'private', 0);
} else {
// not found
return null;
}
}
$urlbase = $CFG->wwwroot.'/pluginfile.php';
//TODO: user quota from $CFG->userquota
return new file_info_stored($this->browser, $this->context, $storedfile, $urlbase, get_string('areauserpersonal', 'repository'), false, true, true, false);
}
/**
* Get a file from user profile area
*
* @param int $itemid item ID
* @param string $filepath file path
* @param string $filename file name
* @return file_info|null
*/
protected function get_area_user_profile($itemid, $filepath, $filename) {
global $CFG;
$readaccess = has_capability('moodle/user:update', $this->context);
$writeaccess = has_capability('moodle/user:viewalldetails', $this->context);
if (!$readaccess and !$writeaccess) {
// the idea here is that only admins should be able to list/modify files in user profile, the rest has to use profile page
return null;
}
if (is_null($itemid)) {
// go to parent, we do not use itemids here in profile area
return $this;
}
$fs = get_file_storage();
$filepath = is_null($filepath) ? '/' : $filepath;
$filename = is_null($filename) ? '.' : $filename;
if (!$storedfile = $fs->get_file($this->context->id, 'user', 'profile', 0, $filepath, $filename)) {
if ($filepath === '/' and $filename === '.') {
$storedfile = new virtual_root_file($this->context->id, 'user', 'profile', 0);
} else {
// not found
return null;
}
}
$urlbase = $CFG->wwwroot.'/pluginfile.php';
return new file_info_stored($this->browser, $this->context, $storedfile, $urlbase,
get_string('areauserprofile', 'repository'), false, $readaccess, $writeaccess, false);
}
/**
* Get a file from user draft area
*
* @param int $itemid item ID
* @param string $filepath file path
* @param string $filename file name
* @return file_info|null
*/
protected function get_area_user_draft($itemid, $filepath, $filename) {
global $USER, $CFG;
// access control: only my files
if ($this->user->id != $USER->id) {
return null;
}
if (empty($itemid)) {
// do not browse itemids - you must know the draftid to see what is there
return null;
}
$fs = get_file_storage();
$filepath = is_null($filepath) ? '/' : $filepath;
$filename = is_null($filename) ? '.' : $filename;
if (!$storedfile = $fs->get_file($this->context->id, 'user', 'draft', $itemid, $filepath, $filename)) {
if ($filepath === '/' and $filename === '.') {
$storedfile = new virtual_root_file($this->context->id, 'user', 'draft', $itemid);
} else {
// not found
return null;
}
}
$urlbase = $CFG->wwwroot.'/draftfile.php';
return new file_info_stored($this->browser, $this->context, $storedfile, $urlbase, get_string('areauserdraft', 'repository'), true, true, true, true);
}
/**
* Get a file from user backup area
*
* @todo MDL-31091 maybe we need new caability for access control
* @param int $itemid item ID
* @param string $filepath file path
* @param string $filename file name
* @return file_info|null
*/
protected function get_area_user_backup($itemid, $filepath, $filename) {
global $USER, $CFG;
// access control: only my files, nobody else - TODO: maybe we need new capability here
if ($this->context->instanceid != $USER->id) {
return null;
}
if (is_null($itemid)) {
// go to parent, we do not use itemids here in profile area
return $this;
}
$fs = get_file_storage();
$filepath = is_null($filepath) ? '/' : $filepath;
$filename = is_null($filename) ? '.' : $filename;
if (!$storedfile = $fs->get_file($this->context->id, 'user', 'backup', $itemid, $filepath, $filename)) {
if ($filepath === '/' and $filename === '.') {
$storedfile = new virtual_root_file($this->context->id, 'user', 'backup', 0);
} else {
// not found
return null;
}
}
$urlbase = $CFG->wwwroot.'/pluginfile.php';
return new file_info_stored($this->browser, $this->context, $storedfile, $urlbase, get_string('areauserbackup', 'repository'), false, true, true, false);
}
/**
* Returns localised visible name.
*
* @return string
*/
public function get_visible_name() {
return fullname($this->user, true);
}
/**
* 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 list of children.
*
* @return array of file_info instances
*/
public function get_children() {
$children = array();
if ($child = $this->get_area_user_private(0, '/', '.')) {
$children[] = $child;
}
/*
if ($child = $this->get_area_user_profile(0, '/', '.')) {
$children[] = $child;
}
*/
if ($child = $this->get_area_user_backup(0, '/', '.')) {
$children[] = $child;
}
// do not list draft area here - it is browsable only if you know the draft itemid ;-)
return $children;
}
/**
* Returns parent file_info instance
*
* @return file_info|null file_info instance or null for root
*/
public function get_parent() {
return $this->browser->get_file_info();
}
}