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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/>.
/**
* Draft file ajax file manager
*
* @package core
* @subpackage repository
* @copyright 2010 Dongsheng Cai <dongsheng@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define('AJAX_SCRIPT', true);
require('../config.php');
require_once($CFG->libdir.'/filelib.php');
require_once($CFG->libdir.'/adminlib.php');
$PAGE->set_context(get_system_context());
require_login();
if (isguestuser()) {
print_error('noguest');
}
require_sesskey();
$action = required_param('action', PARAM_ALPHA);
$draftid = required_param('itemid', PARAM_INT);
$filepath = optional_param('filepath', '/', PARAM_PATH);
$user_context = get_context_instance(CONTEXT_USER, $USER->id);
echo $OUTPUT->header(); // send headers
//
//NOTE TO ALL DEVELOPERS: this script must deal only with draft area of current user, it has to use only file_storage and no file_browser!!
//
switch ($action) {
case 'dir':
$data = new stdClass();
file_get_drafarea_folders($draftid, $filepath, $data);
echo json_encode($data);
die;
case 'list':
$filepath = optional_param('filepath', '/', PARAM_PATH);
$data = file_get_drafarea_files($draftid, $filepath);
echo json_encode($data);
die;
case 'mkdir':
$filepath = required_param('filepath', PARAM_PATH);
$newdirname = required_param('newdirname', PARAM_FILE);
$fs = get_file_storage();
$fs->create_directory($user_context->id, 'user', 'draft', $draftid, file_correct_filepath(file_correct_filepath($filepath).$newdirname));
$return = new stdClass();
$return->filepath = $filepath;
echo json_encode($return);
die;
case 'delete':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$fs = get_file_storage();
$filepath = file_correct_filepath($filepath);
$return = new stdClass();
if ($stored_file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename)) {
$parent_path = $stored_file->get_parent_directory()->get_filepath();
if ($stored_file->is_directory()) {
$files = $fs->get_directory_files($user_context->id, 'user', 'draft', $draftid, $filepath, true);
foreach ($files as $file) {
$file->delete();
}
$stored_file->delete();
$return->filepath = $parent_path;
echo json_encode($return);
} else {
if($result = $stored_file->delete()) {
$return->filepath = $parent_path;
echo json_encode($return);
} else {
echo json_encode(false);
}
}
} else {
echo json_encode(false);
}
die;
case 'setmainfile':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$filepath = file_correct_filepath($filepath);
// reset sort order
file_reset_sortorder($user_context->id, 'user', 'draft', $draftid);
// set main file
$return = file_set_sortorder($user_context->id, 'user', 'draft', $draftid, $filepath, $filename, 1);
echo json_encode($return);
die;
case 'rename':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$newfilename = required_param('newfilename', PARAM_FILE);
$fs = get_file_storage();
if ($fs->file_exists($user_context->id, 'user', 'draft', $draftid, $filepath, $newfilename)) {
//bad luck, we can not rename!
echo json_encode(false);
} else if ($file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename)) {
$return = new stdClass();
$newfile = $fs->create_file_from_storedfile(array('filename'=>$newfilename), $file);
$file->delete();
$return->filepath = $newfile->get_filepath();
echo json_encode($return);
} else {
echo json_encode(false);
}
die;
case 'renamedir':
case 'movedir':
$filepath = required_param('filepath', PARAM_PATH);
$fs = get_file_storage();
if (!$dir = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, '.')) {
echo json_encode(false);
die;
}
if ($action === 'renamedir') {
$newdirname = required_param('newdirname', PARAM_FILE);
$parent = clean_param(dirname($filepath) . '/', PARAM_PATH);
$newfilepath = $parent . $newdirname . '/';
} else {
$newfilepath = required_param('newfilepath', PARAM_PATH);
$parts = explode('/', trim($dir->get_filepath(), '/'));
$dirname = end($parts);
$newfilepath = clean_param($newfilepath . '/' . $dirname . '/', PARAM_PATH);
}
//we must update directory and all children too
if ($fs->get_directory_files($user_context->id, 'user', 'draft', $draftid, $newfilepath, true)) {
//bad luck, we can not rename if something already exists there
echo json_encode(false);
die;
}
$xfilepath = preg_quote($filepath, '|');
$files = $fs->get_area_files($user_context->id, 'user', 'draft', $draftid);
$moved = array();
foreach ($files as $file) {
if (!preg_match("|^$xfilepath|", $file->get_filepath())) {
continue;
}
// move one by one
$path = preg_replace("|^$xfilepath|", $newfilepath, $file->get_filepath());
$fs->create_file_from_storedfile(array('filepath'=>$path), $file);
$moved[] = $file;
}
foreach ($moved as $file) {
// delete all old
$file->delete();
}
$return = new stdClass();
if ($action === 'renamedir') {
$return->filepath = $parent;
} else {
$return->filepath = $newfilepath;
}
echo json_encode($return);
die;
case 'movefile':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$newfilepath = required_param('newfilepath', PARAM_PATH);
$fs = get_file_storage();
if ($fs->file_exists($user_context->id, 'user', 'draft', $draftid, $newfilepath, $filename)) {
//bad luck, we can not rename!
echo json_encode(false);
} else if ($file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename)) {
$return = new stdClass();
$newfile = $fs->create_file_from_storedfile(array('filepath'=>$newfilepath), $file);
$file->delete();
$return->filepath = $newfile->get_filepath();
echo json_encode($return);
} else {
echo json_encode(false);
}
die;
case 'zip':
$filepath = required_param('filepath', PARAM_PATH);
$zipper = get_file_packer('application/zip');
$fs = get_file_storage();
$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, '.');
$parent_path = $file->get_parent_directory()->get_filepath();
if ($newfile = $zipper->archive_to_storage(array($file), $user_context->id, 'user', 'draft', $draftid, $parent_path, $filepath.'.zip', $USER->id)) {
$return = new stdClass();
$return->filepath = $parent_path;
echo json_encode($return);
} else {
echo json_encode(false);
}
die;
case 'downloaddir':
$filepath = required_param('filepath', PARAM_PATH);
$zipper = get_file_packer('application/zip');
$fs = get_file_storage();
$area = file_get_draft_area_info($draftid);
if ($area['filecount'] == 0) {
echo json_encode(false);
die;
}
$stored_file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, '.');
if ($filepath === '/') {
$parent_path = '/';
$filename = get_string('files').'.zip';
} else {
$parent_path = $stored_file->get_parent_directory()->get_filepath();
$filename = trim($filepath, '/').'.zip';
}
// archive compressed file to an unused draft area
$newdraftitemid = file_get_unused_draft_itemid();
if ($newfile = $zipper->archive_to_storage(array($stored_file), $user_context->id, 'user', 'draft', $newdraftitemid, '/', $filename, $USER->id)) {
$return = new stdClass();
$return->fileurl = moodle_url::make_draftfile_url($newdraftitemid, '/', $filename)->out();
$return->filepath = $parent_path;
echo json_encode($return);
} else {
echo json_encode(false);
}
die;
case 'unzip':
$filename = required_param('filename', PARAM_FILE);
$filepath = required_param('filepath', PARAM_PATH);
$zipper = get_file_packer('application/zip');
$fs = get_file_storage();
$file = $fs->get_file($user_context->id, 'user', 'draft', $draftid, $filepath, $filename);
if ($newfile = $file->extract_to_storage($zipper, $user_context->id, 'user', 'draft', $draftid, $filepath, $USER->id)) {
$return = new stdClass();
$return->filepath = $filepath;
echo json_encode($return);
} else {
echo json_encode(false);
}
die;
default:
// no/unknown action?
echo json_encode(false);
die;
}
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