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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/>.
/**
* Accept uploading files by web service token to the user draft file area.
*
* POST params:
* token => the web service user token (needed for authentication)
* filepath => file path (where files will be stored)
* [_FILES] => for example you can send the files with <input type=file>,
* or with curl magic: 'file_1' => '@/path/to/file', or ...
* itemid => The draftid - this can be used to add a list of files
* to a draft area in separate requests. If it is 0, a new draftid will be generated.
*
* @package core_webservice
* @copyright 2011 Dongsheng Cai <dongsheng@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* AJAX_SCRIPT - exception will be converted into JSON
*/
define('AJAX_SCRIPT', true);
/**
* NO_MOODLE_COOKIES - we don't want any cookie
*/
define('NO_MOODLE_COOKIES', true);
require_once(__DIR__ . '/../config.php');
require_once($CFG->dirroot . '/webservice/lib.php');
// Allow CORS requests.
header('Access-Control-Allow-Origin: *');
$filepath = optional_param('filepath', '/', PARAM_PATH);
$itemid = optional_param('itemid', 0, PARAM_INT);
echo $OUTPUT->header();
// authenticate the user
$token = required_param('token', PARAM_ALPHANUM);
$webservicelib = new webservice();
$authenticationinfo = $webservicelib->authenticate_user($token);
$fileuploaddisabled = empty($authenticationinfo['service']->uploadfiles);
if ($fileuploaddisabled) {
throw new webservice_access_exception('Web service file upload must be enabled in external service settings');
}
$context = context_user::instance($USER->id);
$fs = get_file_storage();
$totalsize = 0;
$files = array();
foreach ($_FILES as $fieldname=>$uploaded_file) {
// check upload errors
if (!empty($_FILES[$fieldname]['error'])) {
switch ($_FILES[$fieldname]['error']) {
case UPLOAD_ERR_INI_SIZE:
throw new moodle_exception('upload_error_ini_size', 'repository_upload');
break;
case UPLOAD_ERR_FORM_SIZE:
throw new moodle_exception('upload_error_form_size', 'repository_upload');
break;
case UPLOAD_ERR_PARTIAL:
throw new moodle_exception('upload_error_partial', 'repository_upload');
break;
case UPLOAD_ERR_NO_FILE:
throw new moodle_exception('upload_error_no_file', 'repository_upload');
break;
case UPLOAD_ERR_NO_TMP_DIR:
throw new moodle_exception('upload_error_no_tmp_dir', 'repository_upload');
break;
case UPLOAD_ERR_CANT_WRITE:
throw new moodle_exception('upload_error_cant_write', 'repository_upload');
break;
case UPLOAD_ERR_EXTENSION:
throw new moodle_exception('upload_error_extension', 'repository_upload');
break;
default:
throw new moodle_exception('nofile');
}
}
// Scan for viruses.
\core\antivirus\manager::scan_file($_FILES[$fieldname]['tmp_name'], $_FILES[$fieldname]['name'], true);
$file = new stdClass();
$file->filename = clean_param($_FILES[$fieldname]['name'], PARAM_FILE);
// check system maxbytes setting
if (($_FILES[$fieldname]['size'] > get_max_upload_file_size($CFG->maxbytes))) {
// oversize file will be ignored, error added to array to notify
// web service client
$file->errortype = 'fileoversized';
$file->error = get_string('maxbytes', 'error');
} else {
$file->filepath = $_FILES[$fieldname]['tmp_name'];
// calculate total size of upload
$totalsize += $_FILES[$fieldname]['size'];
}
$files[] = $file;
}
$fs = get_file_storage();
if ($itemid <= 0) {
$itemid = file_get_unused_draft_itemid();
}
// Get any existing file size limits.
$maxupload = get_user_max_upload_file_size($context, $CFG->maxbytes);
// Check the size of this upload.
if ($maxupload !== USER_CAN_IGNORE_FILE_SIZE_LIMITS && $totalsize > $maxupload) {
throw new file_exception('userquotalimit');
}
$results = array();
foreach ($files as $file) {
if (!empty($file->error)) {
// including error and filename
$results[] = $file;
continue;
}
$file_record = new stdClass;
$file_record->component = 'user';
$file_record->contextid = $context->id;
$file_record->userid = $USER->id;
$file_record->filearea = 'draft';
$file_record->filename = $file->filename;
$file_record->filepath = $filepath;
$file_record->itemid = $itemid;
$file_record->license = $CFG->sitedefaultlicense;
$file_record->author = fullname($authenticationinfo['user']);
$file_record->source = serialize((object)array('source' => $file->filename));
//Check if the file already exist
$existingfile = $fs->file_exists($file_record->contextid, $file_record->component, $file_record->filearea,
$file_record->itemid, $file_record->filepath, $file_record->filename);
if ($existingfile) {
$file->errortype = 'filenameexist';
$file->error = get_string('filenameexist', 'webservice', $file->filename);
$results[] = $file;
} else {
$stored_file = $fs->create_file_from_pathname($file_record, $file->filepath);
$results[] = $file_record;
}
}
echo json_encode($results);