Proyectos de Subversion Moodle

<?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/>.

/**

 * This file receives a registration request along with the registration token and returns a client_id.

 *

 * @copyright  2020 Claude Vervoort (Cengage), Carlos Costa, Adrian Hutchinson (Macgraw Hill)

 * @package    mod_lti

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

define('NO_DEBUG_DISPLAY', true);

define('NO_MOODLE_COOKIES', true);

use mod_lti\local\ltiopenid\registration_helper;

use mod_lti\local\ltiopenid\registration_exception;

require_once(__DIR__ . '/../../config.php');

require_once($CFG->dirroot . '/mod/lti/locallib.php');

$code = 200;

$message = '';

if ($_SERVER['REQUEST_METHOD'] === 'POST' or ($_SERVER['REQUEST_METHOD'] === 'GET')) {

    $doregister = $_SERVER['REQUEST_METHOD'] === 'POST';

    // Retrieve registration token from Bearer Authorization header.

    $authheader = moodle\mod\lti\OAuthUtil::get_headers()['Authorization'] ?? '';

    if (!($authheader && substr($authheader, 0, 7) == 'Bearer ')) {

        $message = 'missing_registration_token';

        $code = 401;

    } else {

        // Registers tool.

        try {

            $tokenres = registration_helper::get()->validate_registration_token(trim(substr($authheader, 7)));

            $type = new stdClass();

            $type->state = LTI_TOOL_STATE_PENDING;

            if (array_key_exists('type', $tokenres)) {

                $type = $tokenres['type'];

            }

            if ($doregister) {

                $registrationpayload = json_decode(file_get_contents('php://input'), true);

                $config = registration_helper::get()->registration_to_config($registrationpayload, $tokenres['clientid']);

                if ($type->id) {

                    lti_update_type($type, clone $config);

                    $typeid = $type->id;

                } else {

                    $typeid = lti_add_type($type, clone $config);

                }

                header('Content-Type: application/json; charset=utf-8');

                $message = json_encode(registration_helper::get()->config_to_registration((object)$config, $typeid));

            } else if ($type) {

                $config = lti_get_type_config($type->id);

                header('Content-Type: application/json; charset=utf-8');

                $message = json_encode(registration_helper::get()->config_to_registration((object)$config, $type->id, $type));

            } else {

                $code = 404;

                $message = "No registration found.";

            }

        } catch (registration_exception $e) {

            $code = $e->getCode();

            $message = $e->getMessage();

        }

    }

} else {

    $code = 400;

    $message = 'Unsupported operation';

}

$response = new \mod_lti\local\ltiservice\response();

// Set code.

$response->set_code($code);

// Set body.

$response->set_body($message);

$response->send();