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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/>.
/**
* Accpet uploading files by web service token
* @package moodlecore
* @subpackage files
* @copyright 2011 Dongsheng Cai <dongsheng@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
define('AJAX_SCRIPT', true);
define('NO_MOODLE_COOKIES', true);
require_once(dirname(dirname(__FILE__)) . '/config.php');
$token = required_param('token', PARAM_ALPHANUM);
$filepath = optional_param('filepath', '/', PARAM_PATH);
echo $OUTPUT->header();
// web service must be enabled to use this script
if (!$CFG->enablewebservices) {
throw new moodle_exception('enablewsdescription', 'webservice');
}
// Obtain token record
if (!$token = $DB->get_record('external_tokens', array('token'=>$token))) {
throw new webservice_access_exception(get_string('invalidtoken', 'webservice'));
}
// Validate token date
if ($token->validuntil and $token->validuntil < time()) {
add_to_log(SITEID, 'webservice', get_string('tokenauthlog', 'webservice'), '' , get_string('invalidtimedtoken', 'webservice'), 0);
$DB->delete_records('external_tokens', array('token'=>$token->token));
throw new webservice_access_exception(get_string('invalidtimedtoken', 'webservice'));
}
//assumes that if sid is set then there must be a valid associated session no matter the token type
if ($token->sid) {
$session = session_get_instance();
if (!$session->session_exists($token->sid)) {
$DB->delete_records('external_tokens', array('sid'=>$token->sid));
throw new webservice_access_exception(get_string('invalidtokensession', 'webservice'));
}
}
// Check ip
if ($token->iprestriction and !address_in_subnet(getremoteaddr(), $token->iprestriction)) {
add_to_log(SITEID, 'webservice', get_string('tokenauthlog', 'webservice'), '' , get_string('failedtolog', 'webservice').": ".getremoteaddr(), 0);
throw new webservice_access_exception(get_string('invalidiptoken', 'webservice'));
}
$user = $DB->get_record('user', array('id'=>$token->userid, 'deleted'=>0), '*', MUST_EXIST);
// log token access
$DB->set_field('external_tokens', 'lastaccess', time(), array('id'=>$token->id));
session_set_user($user);
$context = get_context_instance(CONTEXT_USER, $USER->id);
require_capability('moodle/user:manageownfiles', $context);
$fs = get_file_storage();
foreach ($_FILES as $fieldname=>$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');
}
}
$file_record = new stdClass;
$file_record->component = 'user';
$file_record->contextid = $context->id;
$file_record->userid = $USER->id;
$file_record->filearea = 'private';
$file_record->filename = clean_param($_FILES[$fieldname]['name'], PARAM_FILE);
$file_record->filepath = $filepath;
$file_record->itemid = 0;
$file_record->license = $CFG->sitedefaultlicense;
$file_record->author = fullname($user);;
$file_record->source = '';
$stored_file = $fs->create_file_from_pathname($file_record, $_FILES[$fieldname]['tmp_name']);
$uploaded_files[] = $file_record;
}
echo json_encode($uploaded_files);
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