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lti_lineitem.php
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lti_lineitem.php
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<?php
// This file is part of Moodle - https://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 <https://www.gnu.org/licenses/>.
/**
* Handles `GET /lti_lineitem.php` and `POST /lti_linteitem.php/scores` requests for
* LTI 1.3 Assignment and Grading Service line items.
* See LTI 1.3 Assignment and Grading Service specification: https://www.imsglobal.org/spec/lti-ags/v2p0.
*
* @package mod_kialo
* @copyright 2023 onwards, Kialo GmbH <[email protected]>
* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*
* @var moodle_database $DB
* @var stdClass $CFG see moodle's config.php
*/
// phpcs:disable moodle.Files.RequireLogin.Missing
require_once(__DIR__ . '/../../config.php');
require_once(__DIR__ . '/lib.php');
require_once(__DIR__ . '/constants.php');
require_once(__DIR__ . '/vendor/autoload.php');
require_once($CFG->libdir . '/gradelib.php');
use mod_kialo\grading\grading_service;
use mod_kialo\lti_flow;
// This request can only be performed with a valid access token obtained from the token endpoint.
lti_flow::authenticate_service_request(MOD_KIALO_LTI_AGS_SCOPES);
$courseid = required_param('course_id', PARAM_INT);
$cmid = required_param('cmid', PARAM_INT);
$resourcelinkid = required_param('resource_link_id', PARAM_TEXT);
if (isset($_SERVER['PATH_INFO']) && $_SERVER['PATH_INFO'] == '/scores') {
// Receive a score for the line item via JSON request body.
$input = file_get_contents('php://input');
$data = json_decode($input, true);
if (grading_service::update_grade($courseid, $cmid, $data)) {
http_response_code(204);
} else {
http_response_code(400);
}
} else {
// Return the line item information.
$lineitem = grading_service::get_line_item($courseid, $cmid, $resourcelinkid);
header('Content-Type: application/json; utf-8');
echo json_encode($lineitem, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
}