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sync_localresponses.php
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sync_localresponses.php
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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 quizaccess_wifiresilience
* @copyright 2011 Dongsheng Cai <[email protected]>
* @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);
define('NO_MOODLE_COOKIES', true);
require_once(__DIR__ . '/../../../../config.php');
require_once($CFG->dirroot . '/webservice/lib.php');
$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);
$cmid = required_param('cmid', 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');
}
$context = context_module::instance($cmid);
$fs = get_file_storage();
$totalsize = 0;
$files = array();
// Check for upload errors.
foreach ($_FILES as $fieldname => $uploadedfile) {
if (!empty($_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);
$file->filename = str_replace('-', '_', $file->filename);
$file->filename = $file->filename.'.sync';
// Check system maxbytes setting.
if ($_FILES[$fieldname]['size'] == 0) {
$file->errortype = 'filezero';
$file->error = 'Size Zero';
} else {
$file->filepath = $_FILES[$fieldname]['tmp_name'];
$totalsize += $_FILES[$fieldname]['size'];
}
$files[] = $file;
}
$fs = get_file_storage();
if ($itemid <= 0) {
$itemid = file_get_unused_draft_itemid();
}
$results = array();
foreach ($files as $file) {
if (!empty($file->error)) {
$results[] = $file;
continue;
}
$filerecord = new stdClass;
$filerecord->component = 'quizaccess_wifiresilience';
$filerecord->contextid = $context->id;
$filerecord->userid = $USER->id;
$filerecord->filearea = 'synced_exam_files';
$filerecord->filename = $file->filename;
$filerecord->filepath = $filepath;
$filerecord->itemid = $itemid;
$filerecord->license = $CFG->sitedefaultlicense;
$filerecord->author = fullname($authenticationinfo['user']);
$filerecord->source = serialize((object)array('source' => $file->filename));
// Check if the file already exists.
$existingfile = $fs->file_exists(
$filerecord->contextid,
$filerecord->component,
$filerecord->filearea,
$filerecord->itemid,
$filerecord->filepath,
$filerecord->filename);
if ($existingfile) {
$newfilename = $fs->get_unused_filename(
$filerecord->contextid,
$filerecord->component,
$filerecord->filearea,
$filerecord->itemid,
$filerecord->filepath,
$filerecord->filename);
if ($newfilename) {
$filerecord->filename = $newfilename;
}
}
$storedfile = $fs->create_file_from_pathname($filerecord, $file->filepath);
$results[] = $filerecord;
}
echo json_encode($results);