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306 lines
13 KiB
306 lines
13 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Draft file ajax file manager
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*
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* @package core
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* @subpackage repository
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* @copyright 2010 Dongsheng Cai <dongsheng@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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define('AJAX_SCRIPT', true);
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require('../config.php');
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require_once($CFG->libdir.'/filelib.php');
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require_once($CFG->libdir.'/adminlib.php');
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require_once($CFG->dirroot.'/repository/lib.php');
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$PAGE->set_context(context_system::instance());
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require_login();
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if (isguestuser()) {
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print_error('noguest');
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}
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require_sesskey();
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$action = required_param('action', PARAM_ALPHA);
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$draftid = required_param('itemid', PARAM_INT);
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$filepath = optional_param('filepath', '/', PARAM_PATH);
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$user_context = context_user::instance($USER->id);
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echo $OUTPUT->header(); // send headers
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//
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//NOTE TO ALL DEVELOPERS: this script must deal only with draft area of current user, it has to use only file_storage and no file_browser!!
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//
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switch ($action) {
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case 'dir':
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$data = new stdClass();
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file_get_drafarea_folders($draftid, $filepath, $data);
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echo json_encode($data);
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die;
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case 'list':
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$filepath = optional_param('filepath', '/', PARAM_PATH);
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$data = repository::prepare_listing(file_get_drafarea_files($draftid, $filepath));
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$info = file_get_draft_area_info($draftid);
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$data->filecount = $info['filecount'];
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$data->filesize = $info['filesize'];
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$data->tree = new stdClass();
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file_get_drafarea_folders($draftid, '/', $data->tree);
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echo json_encode($data);
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die;
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case 'mkdir':
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$filepath = required_param('filepath', PARAM_PATH);
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$newdirname = required_param('newdirname', PARAM_FILE);
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$fs = get_file_storage();
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$fs->create_directory($user_context->id, 'user', 'draft', $draftid, file_correct_filepath(file_correct_filepath($filepath).$newdirname));
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$return = new stdClass();
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$return->filepath = $filepath;
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echo json_encode($return);
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die;
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case 'delete':
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$filename = required_param('filename', PARAM_FILE);
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$filepath = required_param('filepath', PARAM_PATH);
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$fs = get_file_storage();
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$filepath = file_correct_filepath($filepath);
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$return = new stdClass();
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if ($stored_file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename)) {
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$parent_path = $stored_file->get_parent_directory()->get_filepath();
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if ($stored_file->is_directory()) {
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$files = $fs->get_directory_files($user_context->id, 'user', 'draft', $draftid, $filepath, true);
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foreach ($files as $file) {
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$file->delete();
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}
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$stored_file->delete();
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$return->filepath = $parent_path;
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echo json_encode($return);
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} else {
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if($result = $stored_file->delete()) {
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$return->filepath = $parent_path;
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echo json_encode($return);
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} else {
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echo json_encode(false);
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}
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}
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} else {
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echo json_encode(false);
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}
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die;
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case 'setmainfile':
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$filename = required_param('filename', PARAM_FILE);
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$filepath = required_param('filepath', PARAM_PATH);
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$filepath = file_correct_filepath($filepath);
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// reset sort order
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file_reset_sortorder($user_context->id, 'user', 'draft', $draftid);
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// set main file
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$return = file_set_sortorder($user_context->id, 'user', 'draft', $draftid, $filepath, $filename, 1);
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echo json_encode($return);
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die;
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case 'updatefile':
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// Allows to Rename file, move it to another directory, change it's license and author information in one request
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$filename = required_param('filename', PARAM_FILE);
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$filepath = required_param('filepath', PARAM_PATH);
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$updatedata = array();
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$updatedata['filename'] = optional_param('newfilename', $filename, PARAM_FILE);
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$updatedata['filepath'] = $newfilepath = optional_param('newfilepath', $filepath, PARAM_PATH);
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if (($v = optional_param('newlicense', false, PARAM_TEXT)) !== false) {
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$updatedata['license'] = $v;
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}
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if (($v = optional_param('newauthor', false, PARAM_TEXT)) !== false) {
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$updatedata['author'] = $v;
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}
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try {
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repository::update_draftfile($draftid, $filepath, $filename, $updatedata);
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} catch (moodle_exception $e) {
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die(json_encode((object)array('error' => $e->getMessage())));
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}
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die(json_encode((object)array('filepath' => $newfilepath)));
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case 'updatedir':
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$filepath = required_param('filepath', PARAM_PATH);
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$newdirname = required_param('newdirname', PARAM_FILE);
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$parent = required_param('newfilepath', PARAM_PATH);
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$newfilepath = clean_param($parent . '/' . $newdirname . '/', PARAM_PATH);
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try {
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repository::update_draftfile($draftid, $filepath, '.', array('filepath' => $newfilepath));
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} catch (moodle_exception $e) {
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die(json_encode((object)array('error' => $e->getMessage())));
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}
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die(json_encode((object)array('filepath' => $parent)));
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case 'zip':
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$filepath = required_param('filepath', PARAM_PATH);
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$zipper = get_file_packer('application/zip');
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$fs = get_file_storage();
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$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, '.');
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$parent_path = $file->get_parent_directory()->get_filepath();
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$filepath = explode('/', trim($file->get_filepath(), '/'));
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$filepath = array_pop($filepath);
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$zipfile = repository::get_unused_filename($draftid, $parent_path, $filepath . '.zip');
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if ($newfile = $zipper->archive_to_storage(array($filepath => $file), $user_context->id, 'user', 'draft', $draftid, $parent_path, $zipfile, $USER->id)) {
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$return = new stdClass();
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$return->filepath = $parent_path;
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echo json_encode($return);
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} else {
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echo json_encode(false);
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}
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die;
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case 'downloaddir':
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$filepath = required_param('filepath', PARAM_PATH);
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$zipper = get_file_packer('application/zip');
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$fs = get_file_storage();
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$area = file_get_draft_area_info($draftid, $filepath);
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if ($area['filecount'] == 0 && $area['foldercount'] == 0) {
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echo json_encode(false);
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die;
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}
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$stored_file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, '.');
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if ($filepath === '/') {
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$filename = get_string('files').'.zip';
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} else {
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$filename = explode('/', trim($filepath, '/'));
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$filename = array_pop($filename) . '.zip';
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}
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// archive compressed file to an unused draft area
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$newdraftitemid = file_get_unused_draft_itemid();
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if ($newfile = $zipper->archive_to_storage(array('/' => $stored_file), $user_context->id, 'user', 'draft', $newdraftitemid, '/', $filename, $USER->id)) {
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$return = new stdClass();
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$return->fileurl = moodle_url::make_draftfile_url($newdraftitemid, '/', $filename)->out();
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$return->filepath = $filepath;
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echo json_encode($return);
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} else {
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echo json_encode(false);
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}
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die;
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case 'unzip':
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$filename = required_param('filename', PARAM_FILE);
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$filepath = required_param('filepath', PARAM_PATH);
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$zipper = get_file_packer('application/zip');
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$fs = get_file_storage();
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$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename);
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// Find unused name for directory to extract the archive.
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$temppath = $fs->get_unused_dirname($user_context->id, 'user', 'draft', $draftid, $filepath. pathinfo($filename, PATHINFO_FILENAME). '/');
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$donotremovedirs = array();
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$doremovedirs = array($temppath);
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// Extract archive and move all files from $temppath to $filepath
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if ($file->extract_to_storage($zipper, $user_context->id, 'user', 'draft', $draftid, $temppath, $USER->id) !== false) {
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$extractedfiles = $fs->get_directory_files($user_context->id, 'user', 'draft', $draftid, $temppath, true);
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$xtemppath = preg_quote($temppath, '|');
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foreach ($extractedfiles as $file) {
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$realpath = preg_replace('|^'.$xtemppath.'|', $filepath, $file->get_filepath());
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if (!$file->is_directory()) {
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// Set the source to the extracted file to indicate that it came from archive.
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$file->set_source(serialize((object)array('source' => $filepath)));
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}
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if (!$fs->file_exists($user_context->id, 'user', 'draft', $draftid, $realpath, $file->get_filename())) {
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// File or directory did not exist, just move it.
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$file->rename($realpath, $file->get_filename());
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} else if (!$file->is_directory()) {
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// File already existed, overwrite it
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repository::overwrite_existing_draftfile($draftid, $realpath, $file->get_filename(), $file->get_filepath(), $file->get_filename());
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} else {
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// Directory already existed, remove temporary dir but make sure we don't remove the existing dir
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$doremovedirs[] = $file->get_filepath();
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$donotremovedirs[] = $realpath;
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}
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}
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$return = new stdClass();
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$return->filepath = $filepath;
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} else {
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$return = false;
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}
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// Remove remaining temporary directories.
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foreach (array_diff($doremovedirs, $donotremovedirs) as $filepath) {
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if ($file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, '.')) {
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$file->delete();
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}
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}
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die(json_encode($return));
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case 'getoriginal':
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$filename = required_param('filename', PARAM_FILE);
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$filepath = required_param('filepath', PARAM_PATH);
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$fs = get_file_storage();
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$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename);
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if (!$file) {
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echo json_encode(false);
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} else {
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$return = array('filename' => $filename, 'filepath' => $filepath, 'original' => $file->get_reference_details());
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echo json_encode((object)$return);
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}
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die;
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case 'getreferences':
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$filename = required_param('filename', PARAM_FILE);
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$filepath = required_param('filepath', PARAM_PATH);
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$fs = get_file_storage();
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$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename);
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if (!$file) {
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echo json_encode(false);
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} else {
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$source = unserialize($file->get_source());
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$return = array('filename' => $filename, 'filepath' => $filepath, 'references' => array());
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$browser = get_file_browser();
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if (isset($source->original)) {
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$reffiles = $fs->search_references($source->original);
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foreach ($reffiles as $reffile) {
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$refcontext = context::instance_by_id($reffile->get_contextid());
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$fileinfo = $browser->get_file_info($refcontext, $reffile->get_component(), $reffile->get_filearea(), $reffile->get_itemid(), $reffile->get_filepath(), $reffile->get_filename());
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if (empty($fileinfo)) {
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$return['references'][] = get_string('undisclosedreference', 'repository');
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} else {
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$return['references'][] = $fileinfo->get_readable_fullname();
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}
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}
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}
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echo json_encode((object)$return);
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}
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die;
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default:
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// no/unknown action?
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echo json_encode(false);
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die;
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}
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