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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/>.
/**
* repository_filesystem class
* Create a repository from your local filesystem
* *NOTE* for security issue, we use a fixed repository path
* which is %moodledata%/repository
*
* @since 2.0
* @package repository
* @subpackage filesystem
* @copyright 2009 Dongsheng Cai
* @author Dongsheng Cai <dongsheng@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class repository_filesystem extends repository {
public function __construct($repositoryid, $context = SYSCONTEXTID, $options = array()) {
global $CFG;
parent::__construct($repositoryid, $context, $options);
$root = $CFG->dataroot.'/repository/';
$subdir = $this->get_option('fs_path');
$this->root_path = $root . $subdir . '/';
if (!empty($options['ajax'])) {
if (!is_dir($this->root_path)) {
$created = mkdir($this->root_path, $CFG->directorypermissions, true);
$ret = array();
$ret['msg'] = get_string('invalidpath', 'repository_filesystem');
$ret['nosearch'] = true;
if ($options['ajax'] && !$created) {
echo json_encode($ret);
exit;
}
}
}
}
public function get_listing($path = '', $page = '') {
global $CFG, $OUTPUT;
$list = array();
$list['list'] = array();
// process breacrumb trail
$list['path'] = array(
array('name'=>'Root', 'path'=>'')
);
$trail = '';
if (!empty($path)) {
$parts = explode('/', $path);
if (count($parts) > 1) {
foreach ($parts as $part) {
if (!empty($part)) {
$trail .= ('/'.$part);
$list['path'][] = array('name'=>$part, 'path'=>$trail);
}
}
} else {
$list['path'][] = array('name'=>$path, 'path'=>$path);
}
$this->root_path .= ($path.'/');
}
$list['manage'] = false;
$list['dynload'] = true;
$list['nologin'] = true;
$list['nosearch'] = true;
// retrieve list of files and directories and sort them
$fileslist = array();
$dirslist = array();
if ($dh = opendir($this->root_path)) {
while (($file = readdir($dh)) != false) {
if ( $file != '.' and $file !='..') {
if (is_file($this->root_path.$file)) {
$fileslist[] = $file;
} else {
$dirslist[] = $file;
}
}
}
}
collatorlib::asort($fileslist);
collatorlib::asort($dirslist);
// fill the $list['list']
foreach ($dirslist as $file) {
if (!empty($path)) {
$current_path = $path . '/'. $file;
} else {
$current_path = $file;
}
$list['list'][] = array(
'title' => $file,
'children' => array(),
'thumbnail' => $OUTPUT->pix_url('f/folder-32')->out(false),
'path' => $current_path
);
}
foreach ($fileslist as $file) {
$list['list'][] = array(
'title' => $file,
'source' => $path.'/'.$file,
'size' => filesize($this->root_path.$file),
'date' => time(),
'thumbnail' => $OUTPUT->pix_url(file_extension_icon($this->root_path.$file, 32))->out(false)
);
}
$list['list'] = array_filter($list['list'], array($this, 'filter'));
return $list;
}
public function check_login() {
return true;
}
public function print_login() {
return true;
}
public function global_search() {
return false;
}
/**
* Return file path
* @return array
*/
public function get_file($file, $title = '') {
global $CFG;
if ($file{0} == '/') {
$file = $this->root_path.substr($file, 1, strlen($file)-1);
} else {
$file = $this->root_path.$file;
}
// this is a hack to prevent move_to_file deleteing files
// in local repository
$CFG->repository_no_delete = true;
return array('path'=>$file, 'url'=>'');
}
public function logout() {
return true;
}
public static function get_instance_option_names() {
return array('fs_path');
}
public function set_option($options = array()) {
$options['fs_path'] = clean_param($options['fs_path'], PARAM_PATH);
$ret = parent::set_option($options);
return $ret;
}
public function instance_config_form($mform) {
global $CFG, $PAGE;
if (has_capability('moodle/site:config', get_system_context())) {
$path = $CFG->dataroot . '/repository/';
if (!is_dir($path)) {
mkdir($path, $CFG->directorypermissions, true);
}
if ($handle = opendir($path)) {
$fieldname = get_string('path', 'repository_filesystem');
$choices = array();
while (false !== ($file = readdir($handle))) {
if (is_dir($path.$file) && $file != '.' && $file!= '..') {
$choices[$file] = $file;
$fieldname = '';
}
}
if (empty($choices)) {
$mform->addElement('static', '', '', get_string('nosubdir', 'repository_filesystem', $path));
$mform->addElement('hidden', 'fs_path', '');
} else {
$mform->addElement('select', 'fs_path', $fieldname, $choices);
$mform->addElement('static', null, '', get_string('information','repository_filesystem', $path));
}
closedir($handle);
}
} else {
$mform->addElement('static', null, '', get_string('nopermissions', 'error', get_string('configplugin', 'repository_filesystem')));
return false;
}
}
public function supported_returntypes() {
return FILE_INTERNAL;
}
public static function create($type, $userid, $context, $params, $readonly=0) {
global $PAGE;
if (has_capability('moodle/site:config', get_system_context())) {
return parent::create($type, $userid, $context, $params, $readonly);
} else {
require_capability('moodle/site:config', get_system_context());
return false;
}
}
public static function instance_form_validation($mform, $data, $errors) {
if (empty($data['fs_path'])) {
$errors['fs_path'] = get_string('invalidadminsettingname', 'error', 'fs_path');
}
return $errors;
}
}
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